diff options
author | Kalle Valo <kalle.valo@nokia.com> | 2009-04-29 20:33:31 (GMT) |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2009-05-06 19:14:54 (GMT) |
commit | 2f01a1f58889fbfeb68b1bc1b52e4197f3333490 (patch) | |
tree | 949cf33c4e3dcdf7abcf95c9bda4d8372da04f97 | |
parent | d53d9e67b55f6a9fc3f836c5c392eb41ce5676f4 (diff) | |
download | linux-2f01a1f58889fbfeb68b1bc1b52e4197f3333490.tar.xz |
wl12xx: add driver
wl12xx is a driver for TI wl1251 802.11 chipset designed for embedded
devices, supporting both SDIO and SPI busses. Currently the driver
supports only SPI. Adding support 1253 (the 5 GHz version) should be
relatively easy. More information here:
http://focus.ti.com/general/docs/wtbu/wtbuproductcontent.tsp?contentId=4711&navigationId=12494&templateId=6123
(Collapsed original sequence of pre-merge patches into single commit for
initial merge. -- JWL)
Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
31 files changed, 9263 insertions, 0 deletions
diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig index 2d8434f..91be3e7 100644 --- a/drivers/net/wireless/Kconfig +++ b/drivers/net/wireless/Kconfig @@ -500,5 +500,6 @@ source "drivers/net/wireless/b43legacy/Kconfig" source "drivers/net/wireless/zd1211rw/Kconfig" source "drivers/net/wireless/rt2x00/Kconfig" source "drivers/net/wireless/orinoco/Kconfig" +source "drivers/net/wireless/wl12xx/Kconfig" endmenu diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile index 0625e91..f2b1861 100644 --- a/drivers/net/wireless/Makefile +++ b/drivers/net/wireless/Makefile @@ -58,3 +58,5 @@ obj-$(CONFIG_P54_COMMON) += p54/ obj-$(CONFIG_ATH_COMMON) += ath/ obj-$(CONFIG_MAC80211_HWSIM) += mac80211_hwsim.o + +obj-$(CONFIG_WL12XX) += wl12xx/ diff --git a/drivers/net/wireless/wl12xx/Kconfig b/drivers/net/wireless/wl12xx/Kconfig new file mode 100644 index 0000000..20a9633 --- /dev/null +++ b/drivers/net/wireless/wl12xx/Kconfig @@ -0,0 +1,11 @@ +config WL12XX + tristate "TI wl1251/wl1271 support" + depends on MAC80211 && WLAN_80211 && SPI_MASTER && EXPERIMENTAL + select FW_LOADER + select CRC7 + ---help--- + This module adds support for wireless adapters based on + TI wl1251/wl1271 chipsets. + + If you choose to build a module, it'll be called wl12xx. Say N if + unsure. diff --git a/drivers/net/wireless/wl12xx/Makefile b/drivers/net/wireless/wl12xx/Makefile new file mode 100644 index 0000000..d43de27 --- /dev/null +++ b/drivers/net/wireless/wl12xx/Makefile @@ -0,0 +1,4 @@ +wl12xx-objs = main.o spi.o event.o tx.o rx.o \ + ps.o cmd.o acx.o boot.o init.o wl1251.o \ + debugfs.o +obj-$(CONFIG_WL12XX) += wl12xx.o diff --git a/drivers/net/wireless/wl12xx/acx.c b/drivers/net/wireless/wl12xx/acx.c new file mode 100644 index 0000000..1cfd458 --- /dev/null +++ b/drivers/net/wireless/wl12xx/acx.c @@ -0,0 +1,689 @@ +#include "acx.h" + +#include <linux/module.h> +#include <linux/crc7.h> +#include <linux/spi/spi.h> + +#include "wl12xx.h" +#include "wl12xx_80211.h" +#include "reg.h" +#include "spi.h" +#include "ps.h" + +int wl12xx_acx_frame_rates(struct wl12xx *wl, u8 ctrl_rate, u8 ctrl_mod, + u8 mgt_rate, u8 mgt_mod) +{ + int ret; + struct acx_fw_gen_frame_rates rates; + + wl12xx_debug(DEBUG_ACX, "acx frame rates"); + + rates.header.id = ACX_FW_GEN_FRAME_RATES; + rates.header.len = sizeof(struct acx_fw_gen_frame_rates) - + sizeof(struct acx_header); + + rates.tx_ctrl_frame_rate = ctrl_rate; + rates.tx_ctrl_frame_mod = ctrl_mod; + rates.tx_mgt_frame_rate = mgt_rate; + rates.tx_mgt_frame_mod = mgt_mod; + + ret = wl12xx_cmd_configure(wl, &rates, sizeof(rates)); + if (ret < 0) { + wl12xx_error("Failed to set FW rates and modulation"); + return ret; + } + + return 0; +} + + +int wl12xx_acx_station_id(struct wl12xx *wl) +{ + int ret, i; + struct dot11_station_id mac; + + wl12xx_debug(DEBUG_ACX, "acx dot11_station_id"); + + mac.header.id = DOT11_STATION_ID; + mac.header.len = sizeof(mac) - sizeof(struct acx_header); + + for (i = 0; i < ETH_ALEN; i++) + mac.mac[i] = wl->mac_addr[ETH_ALEN - 1 - i]; + + ret = wl12xx_cmd_configure(wl, &mac, sizeof(mac)); + if (ret < 0) + return ret; + + return 0; +} + +int wl12xx_acx_default_key(struct wl12xx *wl, u8 key_id) +{ + struct acx_dot11_default_key default_key; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx dot11_default_key (%d)", key_id); + + default_key.header.id = DOT11_DEFAULT_KEY; + default_key.header.len = sizeof(default_key) - + sizeof(struct acx_header); + + default_key.id = key_id; + + ret = wl12xx_cmd_configure(wl, &default_key, sizeof(default_key)); + if (ret < 0) { + wl12xx_error("Couldnt set default key"); + return ret; + } + + wl->default_key = key_id; + + return 0; +} + +int wl12xx_acx_wake_up_conditions(struct wl12xx *wl, u8 listen_interval) +{ + struct acx_wake_up_condition wake_up; + + wl12xx_debug(DEBUG_ACX, "acx wake up conditions"); + + wake_up.header.id = ACX_WAKE_UP_CONDITIONS; + wake_up.header.len = sizeof(wake_up) - sizeof(struct acx_header); + + wake_up.wake_up_event = WAKE_UP_EVENT_DTIM_BITMAP; + wake_up.listen_interval = listen_interval; + + return wl12xx_cmd_configure(wl, &wake_up, sizeof(wake_up)); +} + +int wl12xx_acx_sleep_auth(struct wl12xx *wl, u8 sleep_auth) +{ + int ret; + struct acx_sleep_auth auth; + + wl12xx_debug(DEBUG_ACX, "acx sleep auth"); + + auth.header.id = ACX_SLEEP_AUTH; + auth.header.len = sizeof(auth) - sizeof(struct acx_header); + + auth.sleep_auth = sleep_auth; + + ret = wl12xx_cmd_configure(wl, &auth, sizeof(auth)); + if (ret < 0) + return ret; + + return 0; +} + +int wl12xx_acx_fw_version(struct wl12xx *wl, char *buf, size_t len) +{ + struct wl12xx_command cmd; + struct acx_revision *rev; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx fw rev"); + + memset(&cmd, 0, sizeof(cmd)); + + ret = wl12xx_cmd_interrogate(wl, ACX_FW_REV, sizeof(*rev), &cmd); + if (ret < 0) { + wl12xx_warning("ACX_FW_REV interrogate failed"); + return ret; + } + + rev = (struct acx_revision *) &cmd.parameters; + + /* be careful with the buffer sizes */ + strncpy(buf, rev->fw_version, min(len, sizeof(rev->fw_version))); + + /* + * if the firmware version string is exactly + * sizeof(rev->fw_version) long or fw_len is less than + * sizeof(rev->fw_version) it won't be null terminated + */ + buf[min(len, sizeof(rev->fw_version)) - 1] = '\0'; + + return 0; +} + +int wl12xx_acx_tx_power(struct wl12xx *wl, int power) +{ + struct acx_current_tx_power ie; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx dot11_cur_tx_pwr"); + + if (power < 0 || power > 25) + return -EINVAL; + + memset(&ie, 0, sizeof(ie)); + + ie.header.id = DOT11_CUR_TX_PWR; + ie.header.len = sizeof(ie) - sizeof(struct acx_header); + ie.current_tx_power = power * 10; + + ret = wl12xx_cmd_configure(wl, &ie, sizeof(ie)); + if (ret < 0) { + wl12xx_warning("configure of tx power failed: %d", ret); + return ret; + } + + return 0; +} + +int wl12xx_acx_feature_cfg(struct wl12xx *wl) +{ + struct acx_feature_config feature; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx feature cfg"); + + memset(&feature, 0, sizeof(feature)); + + feature.header.id = ACX_FEATURE_CFG; + feature.header.len = sizeof(feature) - sizeof(struct acx_header); + + /* DF_ENCRYPTION_DISABLE and DF_SNIFF_MODE_ENABLE are disabled */ + feature.data_flow_options = 0; + feature.options = 0; + + ret = wl12xx_cmd_configure(wl, &feature, sizeof(feature)); + if (ret < 0) + wl12xx_error("Couldnt set HW encryption"); + + return ret; +} + +int wl12xx_acx_mem_map(struct wl12xx *wl, void *mem_map, size_t len) +{ + struct wl12xx_command cmd; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx mem map"); + + ret = wl12xx_cmd_interrogate(wl, ACX_MEM_MAP, len, &cmd); + if (ret < 0) + return ret; + else if (cmd.status != CMD_STATUS_SUCCESS) + return -EIO; + + memcpy(mem_map, &cmd.parameters, len); + + return 0; +} + +int wl12xx_acx_data_path_params(struct wl12xx *wl, + struct acx_data_path_params_resp *data_path) +{ + struct acx_data_path_params params; + struct wl12xx_command cmd; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx data path params"); + + params.rx_packet_ring_chunk_size = DP_RX_PACKET_RING_CHUNK_SIZE; + params.tx_packet_ring_chunk_size = DP_TX_PACKET_RING_CHUNK_SIZE; + + params.rx_packet_ring_chunk_num = DP_RX_PACKET_RING_CHUNK_NUM; + params.tx_packet_ring_chunk_num = DP_TX_PACKET_RING_CHUNK_NUM; + + params.tx_complete_threshold = 1; + + params.tx_complete_ring_depth = FW_TX_CMPLT_BLOCK_SIZE; + + params.tx_complete_timeout = DP_TX_COMPLETE_TIME_OUT; + + params.header.id = ACX_DATA_PATH_PARAMS; + params.header.len = sizeof(params) - sizeof(struct acx_header); + + ret = wl12xx_cmd_configure(wl, ¶ms, sizeof(params)); + if (ret < 0) + return ret; + + + ret = wl12xx_cmd_interrogate(wl, ACX_DATA_PATH_PARAMS, + sizeof(struct acx_data_path_params_resp), + &cmd); + + if (ret < 0) { + wl12xx_warning("failed to read data path parameters: %d", ret); + return ret; + } else if (cmd.status != CMD_STATUS_SUCCESS) { + wl12xx_warning("data path parameter acx status failed"); + return -EIO; + } + + memcpy(data_path, &cmd.parameters, sizeof(*data_path)); + + return 0; +} + +int wl12xx_acx_rx_msdu_life_time(struct wl12xx *wl, u32 life_time) +{ + struct rx_msdu_lifetime msdu_lifetime; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx rx msdu life time"); + + msdu_lifetime.header.id = DOT11_RX_MSDU_LIFE_TIME; + msdu_lifetime.header.len = sizeof(msdu_lifetime) - + sizeof(struct acx_header); + msdu_lifetime.lifetime = life_time; + + ret = wl12xx_cmd_configure(wl, &msdu_lifetime, sizeof(msdu_lifetime)); + if (ret < 0) { + wl12xx_warning("failed to set rx msdu life time: %d", ret); + return ret; + } + + return 0; +} + +int wl12xx_acx_rx_config(struct wl12xx *wl, u32 config, u32 filter) +{ + struct acx_rx_config rx_config; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx rx config"); + + rx_config.header.id = ACX_RX_CFG; + rx_config.header.len = sizeof(rx_config) - sizeof(struct acx_header); + rx_config.config_options = config; + rx_config.filter_options = filter; + + ret = wl12xx_cmd_configure(wl, &rx_config, sizeof(rx_config)); + if (ret < 0) { + wl12xx_warning("failed to set rx config: %d", ret); + return ret; + } + + return 0; +} + +int wl12xx_acx_pd_threshold(struct wl12xx *wl) +{ + struct acx_packet_detection packet_detection; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx data pd threshold"); + + /* FIXME: threshold value not set */ + packet_detection.header.id = ACX_PD_THRESHOLD; + packet_detection.header.len = sizeof(packet_detection) - + sizeof(struct acx_header); + + ret = wl12xx_cmd_configure(wl, &packet_detection, + sizeof(packet_detection)); + if (ret < 0) { + wl12xx_warning("failed to set pd threshold: %d", ret); + return ret; + } + + return 0; +} + +int wl12xx_acx_slot(struct wl12xx *wl, enum acx_slot_type slot_time) +{ + struct acx_slot slot; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx slot"); + + slot.header.id = ACX_SLOT; + slot.header.len = sizeof(slot) - sizeof(struct acx_header); + + slot.wone_index = STATION_WONE_INDEX; + slot.slot_time = slot_time; + + ret = wl12xx_cmd_configure(wl, &slot, sizeof(slot)); + if (ret < 0) { + wl12xx_warning("failed to set slot time: %d", ret); + return ret; + } + + return 0; +} + +int wl12xx_acx_group_address_tbl(struct wl12xx *wl) +{ + struct multicast_grp_addr_start multicast; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx group address tbl"); + + /* MAC filtering */ + multicast.header.id = DOT11_GROUP_ADDRESS_TBL; + multicast.header.len = sizeof(multicast) - sizeof(struct acx_header); + + multicast.enabled = 0; + multicast.num_groups = 0; + memset(multicast.mac_table, 0, ADDRESS_GROUP_MAX_LEN); + + ret = wl12xx_cmd_configure(wl, &multicast, sizeof(multicast)); + if (ret < 0) { + wl12xx_warning("failed to set group addr table: %d", ret); + return ret; + } + + return 0; +} + +int wl12xx_acx_service_period_timeout(struct wl12xx *wl) +{ + struct acx_rx_timeout rx_timeout; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx service period timeout"); + + /* RX timeout */ + rx_timeout.header.id = ACX_SERVICE_PERIOD_TIMEOUT; + rx_timeout.header.len = sizeof(rx_timeout) - sizeof(struct acx_header); + + rx_timeout.ps_poll_timeout = RX_TIMEOUT_PS_POLL_DEF; + rx_timeout.upsd_timeout = RX_TIMEOUT_UPSD_DEF; + + ret = wl12xx_cmd_configure(wl, &rx_timeout, sizeof(rx_timeout)); + if (ret < 0) { + wl12xx_warning("failed to set service period timeout: %d", + ret); + return ret; + } + + return 0; +} + +int wl12xx_acx_rts_threshold(struct wl12xx *wl, u16 rts_threshold) +{ + struct acx_rts_threshold rts; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx rts threshold"); + + rts.header.id = DOT11_RTS_THRESHOLD; + rts.header.len = sizeof(rts) - sizeof(struct acx_header); + + rts.threshold = rts_threshold; + + ret = wl12xx_cmd_configure(wl, &rts, sizeof(rts)); + if (ret < 0) { + wl12xx_warning("failed to set rts threshold: %d", ret); + return ret; + } + + return 0; +} + +int wl12xx_acx_beacon_filter_opt(struct wl12xx *wl) +{ + struct acx_beacon_filter_option beacon_filter; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx beacon filter opt"); + + beacon_filter.header.id = ACX_BEACON_FILTER_OPT; + beacon_filter.header.len = sizeof(beacon_filter) - + sizeof(struct acx_header); + + beacon_filter.enable = 0; + beacon_filter.max_num_beacons = 0; + + ret = wl12xx_cmd_configure(wl, &beacon_filter, sizeof(beacon_filter)); + if (ret < 0) { + wl12xx_warning("failed to set beacon filter opt: %d", ret); + return ret; + } + + return 0; +} + +int wl12xx_acx_beacon_filter_table(struct wl12xx *wl) +{ + struct acx_beacon_filter_ie_table ie_table; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx beacon filter table"); + + ie_table.header.id = ACX_BEACON_FILTER_TABLE; + ie_table.header.len = sizeof(ie_table) - sizeof(struct acx_header); + + ie_table.num_ie = 0; + memset(ie_table.table, 0, BEACON_FILTER_TABLE_MAX_SIZE); + + ret = wl12xx_cmd_configure(wl, &ie_table, sizeof(ie_table)); + if (ret < 0) { + wl12xx_warning("failed to set beacon filter table: %d", ret); + return ret; + } + + return 0; +} + +int wl12xx_acx_sg_enable(struct wl12xx *wl) +{ + struct acx_bt_wlan_coex pta; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx sg enable"); + + pta.header.id = ACX_SG_ENABLE; + pta.header.len = sizeof(pta) - sizeof(struct acx_header); + + pta.enable = SG_ENABLE; + + ret = wl12xx_cmd_configure(wl, &pta, sizeof(pta)); + if (ret < 0) { + wl12xx_warning("failed to set softgemini enable: %d", ret); + return ret; + } + + return 0; +} + +int wl12xx_acx_sg_cfg(struct wl12xx *wl) +{ + struct acx_bt_wlan_coex_param param; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx sg cfg"); + + /* BT-WLAN coext parameters */ + param.header.id = ACX_SG_CFG; + param.header.len = sizeof(param) - sizeof(struct acx_header); + + param.min_rate = RATE_INDEX_24MBPS; + param.bt_hp_max_time = PTA_BT_HP_MAXTIME_DEF; + param.wlan_hp_max_time = PTA_WLAN_HP_MAX_TIME_DEF; + param.sense_disable_timer = PTA_SENSE_DISABLE_TIMER_DEF; + param.rx_time_bt_hp = PTA_PROTECTIVE_RX_TIME_DEF; + param.tx_time_bt_hp = PTA_PROTECTIVE_TX_TIME_DEF; + param.rx_time_bt_hp_fast = PTA_PROTECTIVE_RX_TIME_FAST_DEF; + param.tx_time_bt_hp_fast = PTA_PROTECTIVE_TX_TIME_FAST_DEF; + param.wlan_cycle_fast = PTA_CYCLE_TIME_FAST_DEF; + param.bt_anti_starvation_period = PTA_ANTI_STARVE_PERIOD_DEF; + param.next_bt_lp_packet = PTA_TIMEOUT_NEXT_BT_LP_PACKET_DEF; + param.wake_up_beacon = PTA_TIME_BEFORE_BEACON_DEF; + param.hp_dm_max_guard_time = PTA_HPDM_MAX_TIME_DEF; + param.next_wlan_packet = PTA_TIME_OUT_NEXT_WLAN_DEF; + param.antenna_type = PTA_ANTENNA_TYPE_DEF; + param.signal_type = PTA_SIGNALING_TYPE_DEF; + param.afh_leverage_on = PTA_AFH_LEVERAGE_ON_DEF; + param.quiet_cycle_num = PTA_NUMBER_QUIET_CYCLE_DEF; + param.max_cts = PTA_MAX_NUM_CTS_DEF; + param.wlan_packets_num = PTA_NUMBER_OF_WLAN_PACKETS_DEF; + param.bt_packets_num = PTA_NUMBER_OF_BT_PACKETS_DEF; + param.missed_rx_avalanche = PTA_RX_FOR_AVALANCHE_DEF; + param.wlan_elp_hp = PTA_ELP_HP_DEF; + param.bt_anti_starvation_cycles = PTA_ANTI_STARVE_NUM_CYCLE_DEF; + param.ack_mode_dual_ant = PTA_ACK_MODE_DEF; + param.pa_sd_enable = PTA_ALLOW_PA_SD_DEF; + param.pta_auto_mode_enable = PTA_AUTO_MODE_NO_CTS_DEF; + param.bt_hp_respected_num = PTA_BT_HP_RESPECTED_DEF; + + ret = wl12xx_cmd_configure(wl, ¶m, sizeof(param)); + if (ret < 0) { + wl12xx_warning("failed to set sg config: %d", ret); + return ret; + } + + return 0; +} + +int wl12xx_acx_cca_threshold(struct wl12xx *wl) +{ + struct acx_energy_detection detection; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx cca threshold"); + + detection.header.id = ACX_CCA_THRESHOLD; + detection.header.len = sizeof(detection) - sizeof(struct acx_header); + + detection.rx_cca_threshold = CCA_THRSH_DISABLE_ENERGY_D; + detection.tx_energy_detection = 0; + + ret = wl12xx_cmd_configure(wl, &detection, sizeof(detection)); + if (ret < 0) { + wl12xx_warning("failed to set cca threshold: %d", ret); + return ret; + } + + return 0; +} + +int wl12xx_acx_bcn_dtim_options(struct wl12xx *wl) +{ + struct acx_beacon_broadcast bb; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx bcn dtim options"); + + bb.header.id = ACX_BCN_DTIM_OPTIONS; + bb.header.len = sizeof(bb) - sizeof(struct acx_header); + + bb.beacon_rx_timeout = BCN_RX_TIMEOUT_DEF_VALUE; + bb.broadcast_timeout = BROADCAST_RX_TIMEOUT_DEF_VALUE; + bb.rx_broadcast_in_ps = RX_BROADCAST_IN_PS_DEF_VALUE; + bb.ps_poll_threshold = CONSECUTIVE_PS_POLL_FAILURE_DEF; + + ret = wl12xx_cmd_configure(wl, &bb, sizeof(bb)); + if (ret < 0) { + wl12xx_warning("failed to set rx config: %d", ret); + return ret; + } + + return 0; +} + +int wl12xx_acx_aid(struct wl12xx *wl, u16 aid) +{ + struct acx_aid acx_aid; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx aid"); + + acx_aid.header.id = ACX_AID; + acx_aid.header.len = sizeof(acx_aid) - sizeof(struct acx_header); + + acx_aid.aid = aid; + + ret = wl12xx_cmd_configure(wl, &acx_aid, sizeof(acx_aid)); + if (ret < 0) { + wl12xx_warning("failed to set aid: %d", ret); + return ret; + } + + return 0; +} + +int wl12xx_acx_event_mbox_mask(struct wl12xx *wl, u32 event_mask) +{ + struct acx_event_mask mask; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx event mbox mask"); + + mask.header.id = ACX_EVENT_MBOX_MASK; + mask.header.len = sizeof(mask) - sizeof(struct acx_header); + + /* high event mask is unused */ + mask.high_event_mask = 0xffffffff; + + mask.event_mask = event_mask; + + ret = wl12xx_cmd_configure(wl, &mask, sizeof(mask)); + if (ret < 0) { + wl12xx_warning("failed to set aid: %d", ret); + return ret; + } + + return 0; +} + +int wl12xx_acx_set_preamble(struct wl12xx *wl, enum acx_preamble_type preamble) +{ + struct acx_preamble ie; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx_set_preamble"); + + memset(&ie, 0, sizeof(ie)); + + ie.header.id = ACX_PREAMBLE_TYPE; + ie.header.len = sizeof(ie) - sizeof(struct acx_header); + ie.preamble = preamble; + ret = wl12xx_cmd_configure(wl, &ie, sizeof(ie)); + if (ret < 0) { + wl12xx_warning("Setting of preamble failed: %d", ret); + return ret; + } + return 0; +} + +int wl12xx_acx_cts_protect(struct wl12xx *wl, + enum acx_ctsprotect_type ctsprotect) +{ + struct acx_ctsprotect ie; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx_set_ctsprotect"); + + memset(&ie, 0, sizeof(ie)); + + ie.header.id = ACX_CTS_PROTECTION; + ie.header.len = sizeof(ie) - sizeof(struct acx_header); + ie.ctsprotect = ctsprotect; + ret = wl12xx_cmd_configure(wl, &ie, sizeof(ie)); + if (ret < 0) { + wl12xx_warning("Setting of ctsprotect failed: %d", ret); + return ret; + } + return 0; +} + +int wl12xx_acx_statistics(struct wl12xx *wl, struct acx_statistics *stats) +{ + struct wl12xx_command *answer; + int ret; + + wl12xx_debug(DEBUG_ACX, "acx statistics"); + + answer = kmalloc(sizeof(*answer), GFP_KERNEL); + if (!answer) { + wl12xx_warning("could not allocate memory for acx statistics"); + ret = -ENOMEM; + goto out; + } + + ret = wl12xx_cmd_interrogate(wl, ACX_STATISTICS, sizeof(*answer), + answer); + if (ret < 0) { + wl12xx_warning("acx statistics failed: %d", ret); + goto out; + } + + memcpy(stats, answer->parameters, sizeof(*stats)); + +out: + kfree(answer); + return ret; +} diff --git a/drivers/net/wireless/wl12xx/acx.h b/drivers/net/wireless/wl12xx/acx.h new file mode 100644 index 0000000..fb2d234 --- /dev/null +++ b/drivers/net/wireless/wl12xx/acx.h @@ -0,0 +1,1245 @@ +/* + * This file is part of wl12xx + * + * Copyright (c) 1998-2007 Texas Instruments Incorporated + * Copyright (C) 2008 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef __WL12XX_ACX_H__ +#define __WL12XX_ACX_H__ + +#include "wl12xx.h" + +/* Target's information element */ +struct acx_header { + u16 id; + u16 len; +}; + +struct acx_error_counter { + struct acx_header header; + + /* The number of PLCP errors since the last time this */ + /* information element was interrogated. This field is */ + /* automatically cleared when it is interrogated.*/ + u32 PLCP_error; + + /* The number of FCS errors since the last time this */ + /* information element was interrogated. This field is */ + /* automatically cleared when it is interrogated.*/ + u32 FCS_error; + + /* The number of MPDUs without PLCP header errors received*/ + /* since the last time this information element was interrogated. */ + /* This field is automatically cleared when it is interrogated.*/ + u32 valid_frame; + + /* the number of missed sequence numbers in the squentially */ + /* values of frames seq numbers */ + u32 seq_num_miss; +} __attribute__ ((packed)); + +struct acx_revision { + struct acx_header header; + + /* + * The WiLink firmware version, an ASCII string x.x.x.x, + * that uniquely identifies the current firmware. + * The left most digit is incremented each time a + * significant change is made to the firmware, such as + * code redesign or new platform support. + * The second digit is incremented when major enhancements + * are added or major fixes are made. + * The third digit is incremented for each GA release. + * The fourth digit is incremented for each build. + * The first two digits identify a firmware release version, + * in other words, a unique set of features. + * The first three digits identify a GA release. + */ + char fw_version[20]; + + /* + * This 4 byte field specifies the WiLink hardware version. + * bits 0 - 15: Reserved. + * bits 16 - 23: Version ID - The WiLink version ID + * (1 = first spin, 2 = second spin, and so on). + * bits 24 - 31: Chip ID - The WiLink chip ID. + */ + u32 hw_version; +} __attribute__ ((packed)); + +enum wl12xx_psm_mode { + /* Active mode */ + WL12XX_PSM_CAM = 0, + + /* Power save mode */ + WL12XX_PSM_PS = 1, + + /* Extreme low power */ + WL12XX_PSM_ELP = 2, +}; + +struct acx_sleep_auth { + struct acx_header header; + + /* The sleep level authorization of the device. */ + /* 0 - Always active*/ + /* 1 - Power down mode: light / fast sleep*/ + /* 2 - ELP mode: Deep / Max sleep*/ + u8 sleep_auth; + u8 padding[3]; +} __attribute__ ((packed)); + +#define TIM_ELE_ID 5 +#define PARTIAL_VBM_MAX 251 + +struct tim { + u8 identity; + u8 length; + u8 dtim_count; + u8 dtim_period; + u8 bitmap_ctrl; + u8 pvb_field[PARTIAL_VBM_MAX]; /* Partial Virtual Bitmap */ +} __attribute__ ((packed)); + +/* Virtual Bit Map update */ +struct vbm_update_request { + __le16 len; + u8 padding[2]; + struct tim tim; +} __attribute__ ((packed)); + +enum { + HOSTIF_PCI_MASTER_HOST_INDIRECT, + HOSTIF_PCI_MASTER_HOST_DIRECT, + HOSTIF_SLAVE, + HOSTIF_PKT_RING, + HOSTIF_DONTCARE = 0xFF +}; + +#define DEFAULT_UCAST_PRIORITY 0 +#define DEFAULT_RX_Q_PRIORITY 0 +#define DEFAULT_NUM_STATIONS 1 +#define DEFAULT_RXQ_PRIORITY 0 /* low 0 .. 15 high */ +#define DEFAULT_RXQ_TYPE 0x07 /* All frames, Data/Ctrl/Mgmt */ +#define TRACE_BUFFER_MAX_SIZE 256 + +#define DP_RX_PACKET_RING_CHUNK_SIZE 1600 +#define DP_TX_PACKET_RING_CHUNK_SIZE 1600 +#define DP_RX_PACKET_RING_CHUNK_NUM 2 +#define DP_TX_PACKET_RING_CHUNK_NUM 2 +#define DP_TX_COMPLETE_TIME_OUT 20 +#define FW_TX_CMPLT_BLOCK_SIZE 16 + +struct acx_data_path_params { + struct acx_header header; + + u16 rx_packet_ring_chunk_size; + u16 tx_packet_ring_chunk_size; + + u8 rx_packet_ring_chunk_num; + u8 tx_packet_ring_chunk_num; + + /* + * Maximum number of packets that can be gathered + * in the TX complete ring before an interrupt + * is generated. + */ + u8 tx_complete_threshold; + + /* Number of pending TX complete entries in cyclic ring.*/ + u8 tx_complete_ring_depth; + + /* + * Max num microseconds since a packet enters the TX + * complete ring until an interrupt is generated. + */ + u32 tx_complete_timeout; +} __attribute__ ((packed)); + + +struct acx_data_path_params_resp { + struct acx_header header; + + u16 rx_packet_ring_chunk_size; + u16 tx_packet_ring_chunk_size; + + u8 rx_packet_ring_chunk_num; + u8 tx_packet_ring_chunk_num; + + u8 pad[2]; + + u32 rx_packet_ring_addr; + u32 tx_packet_ring_addr; + + u32 rx_control_addr; + u32 tx_control_addr; + + u32 tx_complete_addr; +} __attribute__ ((packed)); + +#define TX_MSDU_LIFETIME_MIN 0 +#define TX_MSDU_LIFETIME_MAX 3000 +#define TX_MSDU_LIFETIME_DEF 512 +#define RX_MSDU_LIFETIME_MIN 0 +#define RX_MSDU_LIFETIME_MAX 0xFFFFFFFF +#define RX_MSDU_LIFETIME_DEF 512000 + +struct rx_msdu_lifetime { + struct acx_header header; + + /* + * The maximum amount of time, in TU, before the + * firmware discards the MSDU. + */ + u32 lifetime; +} __attribute__ ((packed)); + +/* + * RX Config Options Table + * Bit Definition + * === ========== + * 31:14 Reserved + * 13 Copy RX Status - when set, write three receive status words + * to top of rx'd MPDUs. + * When cleared, do not write three status words (added rev 1.5) + * 12 Reserved + * 11 RX Complete upon FCS error - when set, give rx complete + * interrupt for FCS errors, after the rx filtering, e.g. unicast + * frames not to us with FCS error will not generate an interrupt. + * 10 SSID Filter Enable - When set, the WiLink discards all beacon, + * probe request, and probe response frames with an SSID that does + * not match the SSID specified by the host in the START/JOIN + * command. + * When clear, the WiLink receives frames with any SSID. + * 9 Broadcast Filter Enable - When set, the WiLink discards all + * broadcast frames. When clear, the WiLink receives all received + * broadcast frames. + * 8:6 Reserved + * 5 BSSID Filter Enable - When set, the WiLink discards any frames + * with a BSSID that does not match the BSSID specified by the + * host. + * When clear, the WiLink receives frames from any BSSID. + * 4 MAC Addr Filter - When set, the WiLink discards any frames + * with a destination address that does not match the MAC address + * of the adaptor. + * When clear, the WiLink receives frames destined to any MAC + * address. + * 3 Promiscuous - When set, the WiLink receives all valid frames + * (i.e., all frames that pass the FCS check). + * When clear, only frames that pass the other filters specified + * are received. + * 2 FCS - When set, the WiLink includes the FCS with the received + * frame. + * When cleared, the FCS is discarded. + * 1 PLCP header - When set, write all data from baseband to frame + * buffer including PHY header. + * 0 Reserved - Always equal to 0. + * + * RX Filter Options Table + * Bit Definition + * === ========== + * 31:12 Reserved - Always equal to 0. + * 11 Association - When set, the WiLink receives all association + * related frames (association request/response, reassocation + * request/response, and disassociation). When clear, these frames + * are discarded. + * 10 Auth/De auth - When set, the WiLink receives all authentication + * and de-authentication frames. When clear, these frames are + * discarded. + * 9 Beacon - When set, the WiLink receives all beacon frames. + * When clear, these frames are discarded. + * 8 Contention Free - When set, the WiLink receives all contention + * free frames. + * When clear, these frames are discarded. + * 7 Control - When set, the WiLink receives all control frames. + * When clear, these frames are discarded. + * 6 Data - When set, the WiLink receives all data frames. + * When clear, these frames are discarded. + * 5 FCS Error - When set, the WiLink receives frames that have FCS + * errors. + * When clear, these frames are discarded. + * 4 Management - When set, the WiLink receives all management + * frames. + * When clear, these frames are discarded. + * 3 Probe Request - When set, the WiLink receives all probe request + * frames. + * When clear, these frames are discarded. + * 2 Probe Response - When set, the WiLink receives all probe + * response frames. + * When clear, these frames are discarded. + * 1 RTS/CTS/ACK - When set, the WiLink receives all RTS, CTS and ACK + * frames. + * When clear, these frames are discarded. + * 0 Rsvd Type/Sub Type - When set, the WiLink receives all frames + * that have reserved frame types and sub types as defined by the + * 802.11 specification. + * When clear, these frames are discarded. + */ +struct acx_rx_config { + struct acx_header header; + + u32 config_options; + u32 filter_options; +} __attribute__ ((packed)); + +enum { + QOS_AC_BE = 0, + QOS_AC_BK, + QOS_AC_VI, + QOS_AC_VO, + QOS_HIGHEST_AC_INDEX = QOS_AC_VO, +}; + +#define MAX_NUM_OF_AC (QOS_HIGHEST_AC_INDEX+1) +#define FIRST_AC_INDEX QOS_AC_BE +#define MAX_NUM_OF_802_1d_TAGS 8 +#define AC_PARAMS_MAX_TSID 15 +#define MAX_APSD_CONF 0xffff + +#define QOS_TX_HIGH_MIN (0) +#define QOS_TX_HIGH_MAX (100) + +#define QOS_TX_HIGH_BK_DEF (25) +#define QOS_TX_HIGH_BE_DEF (35) +#define QOS_TX_HIGH_VI_DEF (35) +#define QOS_TX_HIGH_VO_DEF (35) + +#define QOS_TX_LOW_BK_DEF (15) +#define QOS_TX_LOW_BE_DEF (25) +#define QOS_TX_LOW_VI_DEF (25) +#define QOS_TX_LOW_VO_DEF (25) + +struct acx_tx_queue_qos_config { + struct acx_header header; + + u8 qid; + u8 pad[3]; + + /* Max number of blocks allowd in the queue */ + u16 high_threshold; + + /* Lowest memory blocks guaranteed for this queue */ + u16 low_threshold; +} __attribute__ ((packed)); + +struct acx_packet_detection { + struct acx_header header; + + u32 threshold; +} __attribute__ ((packed)); + + +enum acx_slot_type { + SLOT_TIME_LONG = 0, + SLOT_TIME_SHORT = 1, + DEFAULT_SLOT_TIME = SLOT_TIME_SHORT, + MAX_SLOT_TIMES = 0xFF +}; + +#define STATION_WONE_INDEX 0 + +struct acx_slot { + struct acx_header header; + + u8 wone_index; /* Reserved */ + u8 slot_time; + u8 reserved[6]; +} __attribute__ ((packed)); + + +#define ADDRESS_GROUP_MAX (8) +#define ADDRESS_GROUP_MAX_LEN (ETH_ALEN * ADDRESS_GROUP_MAX) + +struct multicast_grp_addr_start { + struct acx_header header; + + u8 enabled; + u8 num_groups; + u8 pad[2]; + u8 mac_table[ADDRESS_GROUP_MAX_LEN]; +} __attribute__ ((packed)); + + +#define RX_TIMEOUT_PS_POLL_MIN 0 +#define RX_TIMEOUT_PS_POLL_MAX (200000) +#define RX_TIMEOUT_PS_POLL_DEF (15) +#define RX_TIMEOUT_UPSD_MIN 0 +#define RX_TIMEOUT_UPSD_MAX (200000) +#define RX_TIMEOUT_UPSD_DEF (15) + +struct acx_rx_timeout { + struct acx_header header; + + /* + * The longest time the STA will wait to receive + * traffic from the AP after a PS-poll has been + * transmitted. + */ + u16 ps_poll_timeout; + + /* + * The longest time the STA will wait to receive + * traffic from the AP after a frame has been sent + * from an UPSD enabled queue. + */ + u16 upsd_timeout; +} __attribute__ ((packed)); + +#define RTS_THRESHOLD_MIN 0 +#define RTS_THRESHOLD_MAX 4096 +#define RTS_THRESHOLD_DEF 2347 + +struct acx_rts_threshold { + struct acx_header header; + + u16 threshold; + u8 pad[2]; +} __attribute__ ((packed)); + +struct acx_beacon_filter_option { + struct acx_header header; + + u8 enable; + + /* + * The number of beacons without the unicast TIM + * bit set that the firmware buffers before + * signaling the host about ready frames. + * When set to 0 and the filter is enabled, beacons + * without the unicast TIM bit set are dropped. + */ + u8 max_num_beacons; + u8 pad[2]; +} __attribute__ ((packed)); + +/* + * ACXBeaconFilterEntry (not 221) + * Byte Offset Size (Bytes) Definition + * =========== ============ ========== + * 0 1 IE identifier + * 1 1 Treatment bit mask + * + * ACXBeaconFilterEntry (221) + * Byte Offset Size (Bytes) Definition + * =========== ============ ========== + * 0 1 IE identifier + * 1 1 Treatment bit mask + * 2 3 OUI + * 5 1 Type + * 6 2 Version + * + * + * Treatment bit mask - The information element handling: + * bit 0 - The information element is compared and transferred + * in case of change. + * bit 1 - The information element is transferred to the host + * with each appearance or disappearance. + * Note that both bits can be set at the same time. + */ +#define BEACON_FILTER_TABLE_MAX_IE_NUM (32) +#define BEACON_FILTER_TABLE_MAX_VENDOR_SPECIFIC_IE_NUM (6) +#define BEACON_FILTER_TABLE_IE_ENTRY_SIZE (2) +#define BEACON_FILTER_TABLE_EXTRA_VENDOR_SPECIFIC_IE_SIZE (6) +#define BEACON_FILTER_TABLE_MAX_SIZE ((BEACON_FILTER_TABLE_MAX_IE_NUM * \ + BEACON_FILTER_TABLE_IE_ENTRY_SIZE) + \ + (BEACON_FILTER_TABLE_MAX_VENDOR_SPECIFIC_IE_NUM * \ + BEACON_FILTER_TABLE_EXTRA_VENDOR_SPECIFIC_IE_SIZE)) + +struct acx_beacon_filter_ie_table { + struct acx_header header; + + u8 num_ie; + u8 table[BEACON_FILTER_TABLE_MAX_SIZE]; + u8 pad[3]; +} __attribute__ ((packed)); + +enum { + SG_ENABLE = 0, + SG_DISABLE, + SG_SENSE_NO_ACTIVITY, + SG_SENSE_ACTIVE +}; + +struct acx_bt_wlan_coex { + struct acx_header header; + + /* + * 0 -> PTA enabled + * 1 -> PTA disabled + * 2 -> sense no active mode, i.e. + * an interrupt is sent upon + * BT activity. + * 3 -> PTA is switched on in response + * to the interrupt sending. + */ + u8 enable; + u8 pad[3]; +} __attribute__ ((packed)); + +#define PTA_ANTENNA_TYPE_DEF (0) +#define PTA_BT_HP_MAXTIME_DEF (2000) +#define PTA_WLAN_HP_MAX_TIME_DEF (5000) +#define PTA_SENSE_DISABLE_TIMER_DEF (1350) +#define PTA_PROTECTIVE_RX_TIME_DEF (1500) +#define PTA_PROTECTIVE_TX_TIME_DEF (1500) +#define PTA_TIMEOUT_NEXT_BT_LP_PACKET_DEF (3000) +#define PTA_SIGNALING_TYPE_DEF (1) +#define PTA_AFH_LEVERAGE_ON_DEF (0) +#define PTA_NUMBER_QUIET_CYCLE_DEF (0) +#define PTA_MAX_NUM_CTS_DEF (3) +#define PTA_NUMBER_OF_WLAN_PACKETS_DEF (2) +#define PTA_NUMBER_OF_BT_PACKETS_DEF (2) +#define PTA_PROTECTIVE_RX_TIME_FAST_DEF (1500) +#define PTA_PROTECTIVE_TX_TIME_FAST_DEF (3000) +#define PTA_CYCLE_TIME_FAST_DEF (8700) +#define PTA_RX_FOR_AVALANCHE_DEF (5) +#define PTA_ELP_HP_DEF (0) +#define PTA_ANTI_STARVE_PERIOD_DEF (500) +#define PTA_ANTI_STARVE_NUM_CYCLE_DEF (4) +#define PTA_ALLOW_PA_SD_DEF (1) +#define PTA_TIME_BEFORE_BEACON_DEF (6300) +#define PTA_HPDM_MAX_TIME_DEF (1600) +#define PTA_TIME_OUT_NEXT_WLAN_DEF (2550) +#define PTA_AUTO_MODE_NO_CTS_DEF (0) +#define PTA_BT_HP_RESPECTED_DEF (3) +#define PTA_WLAN_RX_MIN_RATE_DEF (24) +#define PTA_ACK_MODE_DEF (1) + +struct acx_bt_wlan_coex_param { + struct acx_header header; + + /* + * The minimum rate of a received WLAN packet in the STA, + * during protective mode, of which a new BT-HP request + * during this Rx will always be respected and gain the antenna. + */ + u32 min_rate; + + /* Max time the BT HP will be respected. */ + u16 bt_hp_max_time; + + /* Max time the WLAN HP will be respected. */ + u16 wlan_hp_max_time; + + /* + * The time between the last BT activity + * and the moment when the sense mode returns + * to SENSE_INACTIVE. + */ + u16 sense_disable_timer; + + /* Time before the next BT HP instance */ + u16 rx_time_bt_hp; + u16 tx_time_bt_hp; + + /* range: 10-20000 default: 1500 */ + u16 rx_time_bt_hp_fast; + u16 tx_time_bt_hp_fast; + + /* range: 2000-65535 default: 8700 */ + u16 wlan_cycle_fast; + + /* range: 0 - 15000 (Msec) default: 1000 */ + u16 bt_anti_starvation_period; + + /* range 400-10000(Usec) default: 3000 */ + u16 next_bt_lp_packet; + + /* Deafult: worst case for BT DH5 traffic */ + u16 wake_up_beacon; + + /* range: 0-50000(Usec) default: 1050 */ + u16 hp_dm_max_guard_time; + + /* + * This is to prevent both BT & WLAN antenna + * starvation. + * Range: 100-50000(Usec) default:2550 + */ + u16 next_wlan_packet; + + /* 0 -> shared antenna */ + u8 antenna_type; + + /* + * 0 -> TI legacy + * 1 -> Palau + */ + u8 signal_type; + + /* + * BT AFH status + * 0 -> no AFH + * 1 -> from dedicated GPIO + * 2 -> AFH on (from host) + */ + u8 afh_leverage_on; + + /* + * The number of cycles during which no + * TX will be sent after 1 cycle of RX + * transaction in protective mode + */ + u8 quiet_cycle_num; + + /* + * The maximum number of CTSs that will + * be sent for receiving RX packet in + * protective mode + */ + u8 max_cts; + + /* + * The number of WLAN packets + * transferred in common mode before + * switching to BT. + */ + u8 wlan_packets_num; + + /* + * The number of BT packets + * transferred in common mode before + * switching to WLAN. + */ + u8 bt_packets_num; + + /* range: 1-255 default: 5 */ + u8 missed_rx_avalanche; + + /* range: 0-1 default: 1 */ + u8 wlan_elp_hp; + + /* range: 0 - 15 default: 4 */ + u8 bt_anti_starvation_cycles; + + u8 ack_mode_dual_ant; + + /* + * Allow PA_SD assertion/de-assertion + * during enabled BT activity. + */ + u8 pa_sd_enable; + + /* + * Enable/Disable PTA in auto mode: + * Support Both Active & P.S modes + */ + u8 pta_auto_mode_enable; + + /* range: 0 - 20 default: 1 */ + u8 bt_hp_respected_num; +} __attribute__ ((packed)); + +#define CCA_THRSH_ENABLE_ENERGY_D 0x140A +#define CCA_THRSH_DISABLE_ENERGY_D 0xFFEF + +struct acx_energy_detection { + struct acx_header header; + + /* The RX Clear Channel Assessment threshold in the PHY */ + u16 rx_cca_threshold; + u8 tx_energy_detection; + u8 pad; +} __attribute__ ((packed)); + +#define BCN_RX_TIMEOUT_DEF_VALUE 10000 +#define BROADCAST_RX_TIMEOUT_DEF_VALUE 20000 +#define RX_BROADCAST_IN_PS_DEF_VALUE 1 +#define CONSECUTIVE_PS_POLL_FAILURE_DEF 4 + +struct acx_beacon_broadcast { + struct acx_header header; + + u16 beacon_rx_timeout; + u16 broadcast_timeout; + + /* Enables receiving of broadcast packets in PS mode */ + u8 rx_broadcast_in_ps; + + /* Consecutive PS Poll failures before updating the host */ + u8 ps_poll_threshold; + u8 pad[2]; +} __attribute__ ((packed)); + +struct acx_event_mask { + struct acx_header header; + + u32 event_mask; + u32 high_event_mask; /* Unused */ +} __attribute__ ((packed)); + +#define CFG_RX_FCS BIT(2) +#define CFG_RX_ALL_GOOD BIT(3) +#define CFG_UNI_FILTER_EN BIT(4) +#define CFG_BSSID_FILTER_EN BIT(5) +#define CFG_MC_FILTER_EN BIT(6) +#define CFG_MC_ADDR0_EN BIT(7) +#define CFG_MC_ADDR1_EN BIT(8) +#define CFG_BC_REJECT_EN BIT(9) +#define CFG_SSID_FILTER_EN BIT(10) +#define CFG_RX_INT_FCS_ERROR BIT(11) +#define CFG_RX_INT_ENCRYPTED BIT(12) +#define CFG_RX_WR_RX_STATUS BIT(13) +#define CFG_RX_FILTER_NULTI BIT(14) +#define CFG_RX_RESERVE BIT(15) +#define CFG_RX_TIMESTAMP_TSF BIT(16) + +#define CFG_RX_RSV_EN BIT(0) +#define CFG_RX_RCTS_ACK BIT(1) +#define CFG_RX_PRSP_EN BIT(2) +#define CFG_RX_PREQ_EN BIT(3) +#define CFG_RX_MGMT_EN BIT(4) +#define CFG_RX_FCS_ERROR BIT(5) +#define CFG_RX_DATA_EN BIT(6) +#define CFG_RX_CTL_EN BIT(7) +#define CFG_RX_CF_EN BIT(8) +#define CFG_RX_BCN_EN BIT(9) +#define CFG_RX_AUTH_EN BIT(10) +#define CFG_RX_ASSOC_EN BIT(11) + +#define SCAN_PASSIVE BIT(0) +#define SCAN_5GHZ_BAND BIT(1) +#define SCAN_TRIGGERED BIT(2) +#define SCAN_PRIORITY_HIGH BIT(3) + +struct acx_fw_gen_frame_rates { + struct acx_header header; + + u8 tx_ctrl_frame_rate; /* RATE_* */ + u8 tx_ctrl_frame_mod; /* CCK_* or PBCC_* */ + u8 tx_mgt_frame_rate; + u8 tx_mgt_frame_mod; +} __attribute__ ((packed)); + +/* STA MAC */ +struct dot11_station_id { + struct acx_header header; + + u8 mac[ETH_ALEN]; + u8 pad[2]; +} __attribute__ ((packed)); + +/* HW encryption keys */ +#define NUM_ACCESS_CATEGORIES_COPY 4 +#define MAX_KEY_SIZE 32 + +/* When set, disable HW encryption */ +#define DF_ENCRYPTION_DISABLE 0x01 +/* When set, disable HW decryption */ +#define DF_SNIFF_MODE_ENABLE 0x80 + +struct acx_feature_config { + struct acx_header header; + + u32 options; + u32 data_flow_options; +} __attribute__ ((packed)); + +enum acx_key_action { + KEY_ADD_OR_REPLACE = 1, + KEY_REMOVE = 2, + KEY_SET_ID = 3, + MAX_KEY_ACTION = 0xffff, +}; + +enum acx_key_type { + KEY_WEP_DEFAULT = 0, + KEY_WEP_ADDR = 1, + KEY_AES_GROUP = 4, + KEY_AES_PAIRWISE = 5, + KEY_WEP_GROUP = 6, + KEY_TKIP_MIC_GROUP = 10, + KEY_TKIP_MIC_PAIRWISE = 11, +}; + +/* + * + * key_type_e key size key format + * ---------- --------- ---------- + * 0x00 5, 13, 29 Key data + * 0x01 5, 13, 29 Key data + * 0x04 16 16 bytes of key data + * 0x05 16 16 bytes of key data + * 0x0a 32 16 bytes of TKIP key data + * 8 bytes of RX MIC key data + * 8 bytes of TX MIC key data + * 0x0b 32 16 bytes of TKIP key data + * 8 bytes of RX MIC key data + * 8 bytes of TX MIC key data + * + */ + +struct acx_set_key { + /* Ignored for default WEP key */ + u8 addr[ETH_ALEN]; + + /* key_action_e */ + u16 key_action; + + u16 reserved_1; + + /* key size in bytes */ + u8 key_size; + + /* key_type_e */ + u8 key_type; + u8 ssid_profile; + + /* + * TKIP, AES: frame's key id field. + * For WEP default key: key id; + */ + u8 id; + u8 reserved_2[6]; + u8 key[MAX_KEY_SIZE]; + u16 ac_seq_num16[NUM_ACCESS_CATEGORIES_COPY]; + u32 ac_seq_num32[NUM_ACCESS_CATEGORIES_COPY]; +} __attribute__ ((packed)); + +struct acx_current_tx_power { + struct acx_header header; + + u8 current_tx_power; + u8 padding[3]; +} __attribute__ ((packed)); + +struct acx_dot11_default_key { + struct acx_header header; + + u8 id; + u8 pad[3]; +} __attribute__ ((packed)); + +struct acx_tsf_info { + struct acx_header header; + + u32 current_tsf_msb; + u32 current_tsf_lsb; + u32 last_TBTT_msb; + u32 last_TBTT_lsb; + u8 last_dtim_count; + u8 pad[3]; +} __attribute__ ((packed)); + +/* 802.11 PS */ +enum acx_ps_mode { + STATION_ACTIVE_MODE, + STATION_POWER_SAVE_MODE +}; + +struct acx_ps_params { + u8 ps_mode; /* STATION_* */ + u8 send_null_data; /* Do we have to send NULL data packet ? */ + u8 retries; /* Number of retires for the initial NULL data packet */ + + /* + * TUs during which the target stays awake after switching + * to power save mode. + */ + u8 hang_over_period; + u16 null_data_rate; + u8 pad[2]; +} __attribute__ ((packed)); + +enum acx_wake_up_event { + WAKE_UP_EVENT_BEACON_BITMAP = 0x01, /* Wake on every Beacon*/ + WAKE_UP_EVENT_DTIM_BITMAP = 0x02, /* Wake on every DTIM*/ + WAKE_UP_EVENT_N_DTIM_BITMAP = 0x04, /* Wake on every Nth DTIM */ + WAKE_UP_EVENT_N_BEACONS_BITMAP = 0x08, /* Wake on every Nth Beacon */ + WAKE_UP_EVENT_BITS_MASK = 0x0F +}; + +struct acx_wake_up_condition { + struct acx_header header; + + u8 wake_up_event; /* Only one bit can be set */ + u8 listen_interval; + u8 pad[2]; +} __attribute__ ((packed)); + +struct acx_aid { + struct acx_header header; + + /* + * To be set when associated with an AP. + */ + u16 aid; + u8 pad[2]; +} __attribute__ ((packed)); + +enum acx_preamble_type { + ACX_PREAMBLE_LONG = 0, + ACX_PREAMBLE_SHORT = 1 +}; + +struct acx_preamble { + struct acx_header header; + /* + * When set, the WiLink transmits the frames with a short preamble and + * when cleared, the WiLink transmits the frames with a long preamble. + */ + u8 preamble; + u8 padding[3]; +} __attribute__ ((packed)); + +enum acx_ctsprotect_type { + CTSPROTECT_DISABLE = 0, + CTSPROTECT_ENABLE = 1 +}; + +struct acx_ctsprotect { + struct acx_header header; + u8 ctsprotect; + u8 padding[3]; +} __attribute__ ((packed)); + +struct acx_tx_statistics { + u32 internal_desc_overflow; +} __attribute__ ((packed)); + +struct acx_rx_statistics { + u32 out_of_mem; + u32 hdr_overflow; + u32 hw_stuck; + u32 dropped; + u32 fcs_err; + u32 xfr_hint_trig; + u32 path_reset; + u32 reset_counter; +} __attribute__ ((packed)); + +struct acx_dma_statistics { + u32 rx_requested; + u32 rx_errors; + u32 tx_requested; + u32 tx_errors; +} __attribute__ ((packed)); + +struct acx_isr_statistics { + /* host command complete */ + u32 cmd_cmplt; + + /* fiqisr() */ + u32 fiqs; + + /* (INT_STS_ND & INT_TRIG_RX_HEADER) */ + u32 rx_headers; + + /* (INT_STS_ND & INT_TRIG_RX_CMPLT) */ + u32 rx_completes; + + /* (INT_STS_ND & INT_TRIG_NO_RX_BUF) */ + u32 rx_mem_overflow; + + /* (INT_STS_ND & INT_TRIG_S_RX_RDY) */ + u32 rx_rdys; + + /* irqisr() */ + u32 irqs; + + /* (INT_STS_ND & INT_TRIG_TX_PROC) */ + u32 tx_procs; + + /* (INT_STS_ND & INT_TRIG_DECRYPT_DONE) */ + u32 decrypt_done; + + /* (INT_STS_ND & INT_TRIG_DMA0) */ + u32 dma0_done; + + /* (INT_STS_ND & INT_TRIG_DMA1) */ + u32 dma1_done; + + /* (INT_STS_ND & INT_TRIG_TX_EXC_CMPLT) */ + u32 tx_exch_complete; + + /* (INT_STS_ND & INT_TRIG_COMMAND) */ + u32 commands; + + /* (INT_STS_ND & INT_TRIG_RX_PROC) */ + u32 rx_procs; + + /* (INT_STS_ND & INT_TRIG_PM_802) */ + u32 hw_pm_mode_changes; + + /* (INT_STS_ND & INT_TRIG_ACKNOWLEDGE) */ + u32 host_acknowledges; + + /* (INT_STS_ND & INT_TRIG_PM_PCI) */ + u32 pci_pm; + + /* (INT_STS_ND & INT_TRIG_ACM_WAKEUP) */ + u32 wakeups; + + /* (INT_STS_ND & INT_TRIG_LOW_RSSI) */ + u32 low_rssi; +} __attribute__ ((packed)); + +struct acx_wep_statistics { + /* WEP address keys configured */ + u32 addr_key_count; + + /* default keys configured */ + u32 default_key_count; + + u32 reserved; + + /* number of times that WEP key not found on lookup */ + u32 key_not_found; + + /* number of times that WEP key decryption failed */ + u32 decrypt_fail; + + /* WEP packets decrypted */ + u32 packets; + + /* WEP decrypt interrupts */ + u32 interrupt; +} __attribute__ ((packed)); + +#define ACX_MISSED_BEACONS_SPREAD 10 + +struct acx_pwr_statistics { + /* the amount of enters into power save mode (both PD & ELP) */ + u32 ps_enter; + + /* the amount of enters into ELP mode */ + u32 elp_enter; + + /* the amount of missing beacon interrupts to the host */ + u32 missing_bcns; + + /* the amount of wake on host-access times */ + u32 wake_on_host; + + /* the amount of wake on timer-expire */ + u32 wake_on_timer_exp; + + /* the number of packets that were transmitted with PS bit set */ + u32 tx_with_ps; + + /* the number of packets that were transmitted with PS bit clear */ + u32 tx_without_ps; + + /* the number of received beacons */ + u32 rcvd_beacons; + + /* the number of entering into PowerOn (power save off) */ + u32 power_save_off; + + /* the number of entries into power save mode */ + u16 enable_ps; + + /* + * the number of exits from power save, not including failed PS + * transitions + */ + u16 disable_ps; + + /* + * the number of times the TSF counter was adjusted because + * of drift + */ + u32 fix_tsf_ps; + + /* Gives statistics about the spread continuous missed beacons. + * The 16 LSB are dedicated for the PS mode. + * The 16 MSB are dedicated for the PS mode. + * cont_miss_bcns_spread[0] - single missed beacon. + * cont_miss_bcns_spread[1] - two continuous missed beacons. + * cont_miss_bcns_spread[2] - three continuous missed beacons. + * ... + * cont_miss_bcns_spread[9] - ten and more continuous missed beacons. + */ + u32 cont_miss_bcns_spread[ACX_MISSED_BEACONS_SPREAD]; + + /* the number of beacons in awake mode */ + u32 rcvd_awake_beacons; +} __attribute__ ((packed)); + +struct acx_mic_statistics { + u32 rx_pkts; + u32 calc_failure; +} __attribute__ ((packed)); + +struct acx_aes_statistics { + u32 encrypt_fail; + u32 decrypt_fail; + u32 encrypt_packets; + u32 decrypt_packets; + u32 encrypt_interrupt; + u32 decrypt_interrupt; +} __attribute__ ((packed)); + +struct acx_event_statistics { + u32 heart_beat; + u32 calibration; + u32 rx_mismatch; + u32 rx_mem_empty; + u32 rx_pool; + u32 oom_late; + u32 phy_transmit_error; + u32 tx_stuck; +} __attribute__ ((packed)); + +struct acx_ps_statistics { + u32 pspoll_timeouts; + u32 upsd_timeouts; + u32 upsd_max_sptime; + u32 upsd_max_apturn; + u32 pspoll_max_apturn; + u32 pspoll_utilization; + u32 upsd_utilization; +} __attribute__ ((packed)); + +struct acx_rxpipe_statistics { + u32 rx_prep_beacon_drop; + u32 descr_host_int_trig_rx_data; + u32 beacon_buffer_thres_host_int_trig_rx_data; + u32 missed_beacon_host_int_trig_rx_data; + u32 tx_xfr_host_int_trig_rx_data; +} __attribute__ ((packed)); + +struct acx_statistics { + struct acx_header header; + + struct acx_tx_statistics tx; + struct acx_rx_statistics rx; + struct acx_dma_statistics dma; + struct acx_isr_statistics isr; + struct acx_wep_statistics wep; + struct acx_pwr_statistics pwr; + struct acx_aes_statistics aes; + struct acx_mic_statistics mic; + struct acx_event_statistics event; + struct acx_ps_statistics ps; + struct acx_rxpipe_statistics rxpipe; +} __attribute__ ((packed)); + +enum { + ACX_WAKE_UP_CONDITIONS = 0x0002, + ACX_MEM_CFG = 0x0003, + ACX_SLOT = 0x0004, + ACX_QUEUE_HEAD = 0x0005, /* for MASTER mode only */ + ACX_AC_CFG = 0x0007, + ACX_MEM_MAP = 0x0008, + ACX_AID = 0x000A, + ACX_RADIO_PARAM = 0x000B, /* Not used */ + ACX_CFG = 0x000C, /* Not used */ + ACX_FW_REV = 0x000D, + ACX_MEDIUM_USAGE = 0x000F, + ACX_RX_CFG = 0x0010, + ACX_TX_QUEUE_CFG = 0x0011, /* FIXME: only used by wl1251 */ + ACX_BSS_IN_PS = 0x0012, /* for AP only */ + ACX_STATISTICS = 0x0013, /* Debug API */ + ACX_FEATURE_CFG = 0x0015, + ACX_MISC_CFG = 0x0017, /* Not used */ + ACX_TID_CFG = 0x001A, + ACX_BEACON_FILTER_OPT = 0x001F, + ACX_LOW_RSSI = 0x0020, + ACX_NOISE_HIST = 0x0021, + ACX_HDK_VERSION = 0x0022, /* ??? */ + ACX_PD_THRESHOLD = 0x0023, + ACX_DATA_PATH_PARAMS = 0x0024, /* WO */ + ACX_DATA_PATH_RESP_PARAMS = 0x0024, /* RO */ + ACX_CCA_THRESHOLD = 0x0025, + ACX_EVENT_MBOX_MASK = 0x0026, +#ifdef FW_RUNNING_AS_AP + ACX_DTIM_PERIOD = 0x0027, /* for AP only */ +#else + ACX_WR_TBTT_AND_DTIM = 0x0027, /* STA only */ +#endif + ACX_ACI_OPTION_CFG = 0x0029, /* OBSOLETE (for 1251)*/ + ACX_GPIO_CFG = 0x002A, /* Not used */ + ACX_GPIO_SET = 0x002B, /* Not used */ + ACX_PM_CFG = 0x002C, /* To Be Documented */ + ACX_CONN_MONIT_PARAMS = 0x002D, + ACX_AVERAGE_RSSI = 0x002E, /* Not used */ + ACX_CONS_TX_FAILURE = 0x002F, + ACX_BCN_DTIM_OPTIONS = 0x0031, + ACX_SG_ENABLE = 0x0032, + ACX_SG_CFG = 0x0033, + ACX_ANTENNA_DIVERSITY_CFG = 0x0035, /* To Be Documented */ + ACX_LOW_SNR = 0x0037, /* To Be Documented */ + ACX_BEACON_FILTER_TABLE = 0x0038, + ACX_ARP_IP_FILTER = 0x0039, + ACX_ROAMING_STATISTICS_TBL = 0x003B, + ACX_RATE_POLICY = 0x003D, + ACX_CTS_PROTECTION = 0x003E, + ACX_SLEEP_AUTH = 0x003F, + ACX_PREAMBLE_TYPE = 0x0040, + ACX_ERROR_CNT = 0x0041, + ACX_FW_GEN_FRAME_RATES = 0x0042, + ACX_IBSS_FILTER = 0x0044, + ACX_SERVICE_PERIOD_TIMEOUT = 0x0045, + ACX_TSF_INFO = 0x0046, + ACX_CONFIG_PS_WMM = 0x0049, + ACX_ENABLE_RX_DATA_FILTER = 0x004A, + ACX_SET_RX_DATA_FILTER = 0x004B, + ACX_GET_DATA_FILTER_STATISTICS = 0x004C, + ACX_POWER_LEVEL_TABLE = 0x004D, + ACX_BET_ENABLE = 0x0050, + DOT11_STATION_ID = 0x1001, + DOT11_RX_MSDU_LIFE_TIME = 0x1004, + DOT11_CUR_TX_PWR = 0x100D, + DOT11_DEFAULT_KEY = 0x1010, + DOT11_RX_DOT11_MODE = 0x1012, + DOT11_RTS_THRESHOLD = 0x1013, + DOT11_GROUP_ADDRESS_TBL = 0x1014, + + MAX_DOT11_IE = DOT11_GROUP_ADDRESS_TBL, + + MAX_IE = 0xFFFF +}; + + +int wl12xx_acx_frame_rates(struct wl12xx *wl, u8 ctrl_rate, u8 ctrl_mod, + u8 mgt_rate, u8 mgt_mod); +int wl12xx_acx_station_id(struct wl12xx *wl); +int wl12xx_acx_default_key(struct wl12xx *wl, u8 key_id); +int wl12xx_acx_wake_up_conditions(struct wl12xx *wl, u8 listen_interval); +int wl12xx_acx_sleep_auth(struct wl12xx *wl, u8 sleep_auth); +int wl12xx_acx_fw_version(struct wl12xx *wl, char *buf, size_t len); +int wl12xx_acx_tx_power(struct wl12xx *wl, int power); +int wl12xx_acx_feature_cfg(struct wl12xx *wl); +int wl12xx_acx_mem_map(struct wl12xx *wl, void *mem_map, size_t len); +int wl12xx_acx_data_path_params(struct wl12xx *wl, + struct acx_data_path_params_resp *data_path); +int wl12xx_acx_rx_msdu_life_time(struct wl12xx *wl, u32 life_time); +int wl12xx_acx_rx_config(struct wl12xx *wl, u32 config, u32 filter); +int wl12xx_acx_pd_threshold(struct wl12xx *wl); +int wl12xx_acx_slot(struct wl12xx *wl, enum acx_slot_type slot_time); +int wl12xx_acx_group_address_tbl(struct wl12xx *wl); +int wl12xx_acx_service_period_timeout(struct wl12xx *wl); +int wl12xx_acx_rts_threshold(struct wl12xx *wl, u16 rts_threshold); +int wl12xx_acx_beacon_filter_opt(struct wl12xx *wl); +int wl12xx_acx_beacon_filter_table(struct wl12xx *wl); +int wl12xx_acx_sg_enable(struct wl12xx *wl); +int wl12xx_acx_sg_cfg(struct wl12xx *wl); +int wl12xx_acx_cca_threshold(struct wl12xx *wl); +int wl12xx_acx_bcn_dtim_options(struct wl12xx *wl); +int wl12xx_acx_aid(struct wl12xx *wl, u16 aid); +int wl12xx_acx_event_mbox_mask(struct wl12xx *wl, u32 event_mask); +int wl12xx_acx_set_preamble(struct wl12xx *wl, enum acx_preamble_type preamble); +int wl12xx_acx_cts_protect(struct wl12xx *wl, + enum acx_ctsprotect_type ctsprotect); +int wl12xx_acx_statistics(struct wl12xx *wl, struct acx_statistics *stats); + +#endif /* __WL12XX_ACX_H__ */ diff --git a/drivers/net/wireless/wl12xx/boot.c b/drivers/net/wireless/wl12xx/boot.c new file mode 100644 index 0000000..48ac08c --- /dev/null +++ b/drivers/net/wireless/wl12xx/boot.c @@ -0,0 +1,295 @@ +/* + * This file is part of wl12xx + * + * Copyright (C) 2008 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include <linux/gpio.h> + +#include "reg.h" +#include "boot.h" +#include "spi.h" +#include "event.h" + +static void wl12xx_boot_enable_interrupts(struct wl12xx *wl) +{ + enable_irq(wl->irq); +} + +void wl12xx_boot_target_enable_interrupts(struct wl12xx *wl) +{ + wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_MASK, ~(wl->intr_mask)); + wl12xx_reg_write32(wl, HI_CFG, HI_CFG_DEF_VAL); +} + +int wl12xx_boot_soft_reset(struct wl12xx *wl) +{ + unsigned long timeout; + u32 boot_data; + + /* perform soft reset */ + wl12xx_reg_write32(wl, ACX_REG_SLV_SOFT_RESET, ACX_SLV_SOFT_RESET_BIT); + + /* SOFT_RESET is self clearing */ + timeout = jiffies + usecs_to_jiffies(SOFT_RESET_MAX_TIME); + while (1) { + boot_data = wl12xx_reg_read32(wl, ACX_REG_SLV_SOFT_RESET); + wl12xx_debug(DEBUG_BOOT, "soft reset bootdata 0x%x", boot_data); + if ((boot_data & ACX_SLV_SOFT_RESET_BIT) == 0) + break; + + if (time_after(jiffies, timeout)) { + /* 1.2 check pWhalBus->uSelfClearTime if the + * timeout was reached */ + wl12xx_error("soft reset timeout"); + return -1; + } + + udelay(SOFT_RESET_STALL_TIME); + } + + /* disable Rx/Tx */ + wl12xx_reg_write32(wl, ENABLE, 0x0); + + /* disable auto calibration on start*/ + wl12xx_reg_write32(wl, SPARE_A2, 0xffff); + + return 0; +} + +int wl12xx_boot_init_seq(struct wl12xx *wl) +{ + u32 scr_pad6, init_data, tmp, elp_cmd, ref_freq; + + /* + * col #1: INTEGER_DIVIDER + * col #2: FRACTIONAL_DIVIDER + * col #3: ATTN_BB + * col #4: ALPHA_BB + * col #5: STOP_TIME_BB + * col #6: BB_PLL_LOOP_FILTER + */ + static const u32 LUT[REF_FREQ_NUM][LUT_PARAM_NUM] = { + + { 83, 87381, 0xB, 5, 0xF00, 3}, /* REF_FREQ_19_2*/ + { 61, 141154, 0xB, 5, 0x1450, 2}, /* REF_FREQ_26_0*/ + { 41, 174763, 0xC, 6, 0x2D00, 1}, /* REF_FREQ_38_4*/ + { 40, 0, 0xC, 6, 0x2EE0, 1}, /* REF_FREQ_40_0*/ + { 47, 162280, 0xC, 6, 0x2760, 1} /* REF_FREQ_33_6 */ + }; + + /* read NVS params */ + scr_pad6 = wl12xx_reg_read32(wl, SCR_PAD6); + wl12xx_debug(DEBUG_BOOT, "scr_pad6 0x%x", scr_pad6); + + /* read ELP_CMD */ + elp_cmd = wl12xx_reg_read32(wl, ELP_CMD); + wl12xx_debug(DEBUG_BOOT, "elp_cmd 0x%x", elp_cmd); + + /* set the BB calibration time to be 300 usec (PLL_CAL_TIME) */ + ref_freq = scr_pad6 & 0x000000FF; + wl12xx_debug(DEBUG_BOOT, "ref_freq 0x%x", ref_freq); + + wl12xx_reg_write32(wl, PLL_CAL_TIME, 0x9); + + /* + * PG 1.2: set the clock buffer time to be 210 usec (CLK_BUF_TIME) + */ + wl12xx_reg_write32(wl, CLK_BUF_TIME, 0x6); + + /* + * set the clock detect feature to work in the restart wu procedure + * (ELP_CFG_MODE[14]) and Select the clock source type + * (ELP_CFG_MODE[13:12]) + */ + tmp = ((scr_pad6 & 0x0000FF00) << 4) | 0x00004000; + wl12xx_reg_write32(wl, ELP_CFG_MODE, tmp); + + /* PG 1.2: enable the BB PLL fix. Enable the PLL_LIMP_CLK_EN_CMD */ + elp_cmd |= 0x00000040; + wl12xx_reg_write32(wl, ELP_CMD, elp_cmd); + + /* PG 1.2: Set the BB PLL stable time to be 1000usec + * (PLL_STABLE_TIME) */ + wl12xx_reg_write32(wl, CFG_PLL_SYNC_CNT, 0x20); + + /* PG 1.2: read clock request time */ + init_data = wl12xx_reg_read32(wl, CLK_REQ_TIME); + + /* + * PG 1.2: set the clock request time to be ref_clk_settling_time - + * 1ms = 4ms + */ + if (init_data > 0x21) + tmp = init_data - 0x21; + else + tmp = 0; + wl12xx_reg_write32(wl, CLK_REQ_TIME, tmp); + + /* set BB PLL configurations in RF AFE */ + wl12xx_reg_write32(wl, 0x003058cc, 0x4B5); + + /* set RF_AFE_REG_5 */ + wl12xx_reg_write32(wl, 0x003058d4, 0x50); + + /* set RF_AFE_CTRL_REG_2 */ + wl12xx_reg_write32(wl, 0x00305948, 0x11c001); + + /* + * change RF PLL and BB PLL divider for VCO clock and adjust VCO + * bais current(RF_AFE_REG_13) + */ + wl12xx_reg_write32(wl, 0x003058f4, 0x1e); + + /* set BB PLL configurations */ + tmp = LUT[ref_freq][LUT_PARAM_INTEGER_DIVIDER] | 0x00017000; + wl12xx_reg_write32(wl, 0x00305840, tmp); + + /* set fractional divider according to Appendix C-BB PLL + * Calculations + */ + tmp = LUT[ref_freq][LUT_PARAM_FRACTIONAL_DIVIDER]; + wl12xx_reg_write32(wl, 0x00305844, tmp); + + /* set the initial data for the sigma delta */ + wl12xx_reg_write32(wl, 0x00305848, 0x3039); + + /* + * set the accumulator attenuation value, calibration loop1 + * (alpha), calibration loop2 (beta), calibration loop3 (gamma) and + * the VCO gain + */ + tmp = (LUT[ref_freq][LUT_PARAM_ATTN_BB] << 16) | + (LUT[ref_freq][LUT_PARAM_ALPHA_BB] << 12) | 0x1; + wl12xx_reg_write32(wl, 0x00305854, tmp); + + /* + * set the calibration stop time after holdoff time expires and set + * settling time HOLD_OFF_TIME_BB + */ + tmp = LUT[ref_freq][LUT_PARAM_STOP_TIME_BB] | 0x000A0000; + wl12xx_reg_write32(wl, 0x00305858, tmp); + + /* + * set BB PLL Loop filter capacitor3- BB_C3[2:0] and set BB PLL + * constant leakage current to linearize PFD to 0uA - + * BB_ILOOPF[7:3] + */ + tmp = LUT[ref_freq][LUT_PARAM_BB_PLL_LOOP_FILTER] | 0x00000030; + wl12xx_reg_write32(wl, 0x003058f8, tmp); + + /* + * set regulator output voltage for n divider to + * 1.35-BB_REFDIV[1:0], set charge pump current- BB_CPGAIN[4:2], + * set BB PLL Loop filter capacitor2- BB_C2[7:5], set gain of BB + * PLL auto-call to normal mode- BB_CALGAIN_3DB[8] + */ + wl12xx_reg_write32(wl, 0x003058f0, 0x29); + + /* enable restart wakeup sequence (ELP_CMD[0]) */ + wl12xx_reg_write32(wl, ELP_CMD, elp_cmd | 0x1); + + /* restart sequence completed */ + udelay(2000); + + return 0; +} + +int wl12xx_boot_run_firmware(struct wl12xx *wl) +{ + int loop, ret; + u32 chip_id, interrupt; + + wl->chip.op_set_ecpu_ctrl(wl, ECPU_CONTROL_HALT); + + chip_id = wl12xx_reg_read32(wl, CHIP_ID_B); + + wl12xx_debug(DEBUG_BOOT, "chip id after firmware boot: 0x%x", chip_id); + + if (chip_id != wl->chip.id) { + wl12xx_error("chip id doesn't match after firmware boot"); + return -EIO; + } + + /* wait for init to complete */ + loop = 0; + while (loop++ < INIT_LOOP) { + udelay(INIT_LOOP_DELAY); + interrupt = wl12xx_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR); + + if (interrupt == 0xffffffff) { + wl12xx_error("error reading hardware complete " + "init indication"); + return -EIO; + } + /* check that ACX_INTR_INIT_COMPLETE is enabled */ + else if (interrupt & wl->chip.intr_init_complete) { + wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_ACK, + wl->chip.intr_init_complete); + break; + } + } + + if (loop >= INIT_LOOP) { + wl12xx_error("timeout waiting for the hardware to " + "complete initialization"); + return -EIO; + } + + /* get hardware config command mail box */ + wl->cmd_box_addr = wl12xx_reg_read32(wl, REG_COMMAND_MAILBOX_PTR); + + /* get hardware config event mail box */ + wl->event_box_addr = wl12xx_reg_read32(wl, REG_EVENT_MAILBOX_PTR); + + /* set the working partition to its "running" mode offset */ + wl12xx_set_partition(wl, + wl->chip.p_table[PART_WORK].mem.start, + wl->chip.p_table[PART_WORK].mem.size, + wl->chip.p_table[PART_WORK].reg.start, + wl->chip.p_table[PART_WORK].reg.size); + + wl12xx_debug(DEBUG_MAILBOX, "cmd_box_addr 0x%x event_box_addr 0x%x", + wl->cmd_box_addr, wl->event_box_addr); + + /* + * in case of full asynchronous mode the firmware event must be + * ready to receive event from the command mailbox + */ + + /* enable gpio interrupts */ + wl12xx_boot_enable_interrupts(wl); + + wl->chip.op_target_enable_interrupts(wl); + + /* unmask all mbox events */ + wl->event_mask = 0xffffffff; + + ret = wl12xx_event_unmask(wl); + if (ret < 0) { + wl12xx_error("EVENT mask setting failed"); + return ret; + } + + wl12xx_event_mbox_config(wl); + + /* firmware startup completed */ + return 0; +} diff --git a/drivers/net/wireless/wl12xx/boot.h b/drivers/net/wireless/wl12xx/boot.h new file mode 100644 index 0000000..4fa7313 --- /dev/null +++ b/drivers/net/wireless/wl12xx/boot.h @@ -0,0 +1,40 @@ +/* + * This file is part of wl12xx + * + * Copyright (C) 2008 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef __BOOT_H__ +#define __BOOT_H__ + +#include "wl12xx.h" + +int wl12xx_boot_soft_reset(struct wl12xx *wl); +int wl12xx_boot_init_seq(struct wl12xx *wl); +int wl12xx_boot_run_firmware(struct wl12xx *wl); +void wl12xx_boot_target_enable_interrupts(struct wl12xx *wl); + +/* number of times we try to read the INIT interrupt */ +#define INIT_LOOP 20000 + +/* delay between retries */ +#define INIT_LOOP_DELAY 50 + +#endif diff --git a/drivers/net/wireless/wl12xx/cmd.c b/drivers/net/wireless/wl12xx/cmd.c new file mode 100644 index 0000000..f73ab60 --- /dev/null +++ b/drivers/net/wireless/wl12xx/cmd.c @@ -0,0 +1,353 @@ +#include "cmd.h" + +#include <linux/module.h> +#include <linux/crc7.h> +#include <linux/spi/spi.h> + +#include "wl12xx.h" +#include "wl12xx_80211.h" +#include "reg.h" +#include "spi.h" +#include "ps.h" + +int wl12xx_cmd_send(struct wl12xx *wl, u16 type, void *buf, size_t buf_len) +{ + struct wl12xx_command cmd; + unsigned long timeout; + size_t cmd_len; + u32 intr; + int ret = 0; + + memset(&cmd, 0, sizeof(cmd)); + cmd.id = type; + cmd.status = 0; + memcpy(cmd.parameters, buf, buf_len); + cmd_len = ALIGN(buf_len, 4) + CMDMBOX_HEADER_LEN; + + wl12xx_ps_elp_wakeup(wl); + + wl12xx_spi_mem_write(wl, wl->cmd_box_addr, &cmd, cmd_len); + + wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD); + + timeout = jiffies + msecs_to_jiffies(WL12XX_COMMAND_TIMEOUT); + + intr = wl12xx_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR); + while (!(intr & wl->chip.intr_cmd_complete)) { + if (time_after(jiffies, timeout)) { + wl12xx_error("command complete timeout"); + ret = -ETIMEDOUT; + goto out; + } + + msleep(1); + + intr = wl12xx_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR); + } + + wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_ACK, + wl->chip.intr_cmd_complete); + +out: + wl12xx_ps_elp_sleep(wl); + + return ret; +} + +int wl12xx_cmd_test(struct wl12xx *wl, void *buf, size_t buf_len, u8 answer) +{ + int ret; + + wl12xx_debug(DEBUG_CMD, "cmd test"); + + ret = wl12xx_cmd_send(wl, CMD_TEST, buf, buf_len); + if (ret < 0) { + wl12xx_warning("TEST command failed"); + return ret; + } + + if (answer) { + struct wl12xx_command *cmd_answer; + + /* + * The test command got in, we can read the answer. + * The answer would be a wl12xx_command, where the + * parameter array contains the actual answer. + */ + + wl12xx_ps_elp_wakeup(wl); + + wl12xx_spi_mem_read(wl, wl->cmd_box_addr, buf, buf_len); + + wl12xx_ps_elp_sleep(wl); + + cmd_answer = buf; + if (cmd_answer->status != CMD_STATUS_SUCCESS) + wl12xx_error("TEST command answer error: %d", + cmd_answer->status); + } + + return 0; +} + + +int wl12xx_cmd_interrogate(struct wl12xx *wl, u16 ie_id, u16 ie_len, + void *answer) +{ + struct wl12xx_command *cmd; + struct acx_header header; + int ret; + + wl12xx_debug(DEBUG_CMD, "cmd interrogate"); + + header.id = ie_id; + header.len = ie_len - sizeof(header); + + ret = wl12xx_cmd_send(wl, CMD_INTERROGATE, &header, sizeof(header)); + if (ret < 0) { + wl12xx_error("INTERROGATE command failed"); + return ret; + } + + wl12xx_ps_elp_wakeup(wl); + + /* the interrogate command got in, we can read the answer */ + wl12xx_spi_mem_read(wl, wl->cmd_box_addr, answer, + CMDMBOX_HEADER_LEN + ie_len); + + wl12xx_ps_elp_sleep(wl); + + cmd = answer; + if (cmd->status != CMD_STATUS_SUCCESS) + wl12xx_error("INTERROGATE command error: %d", + cmd->status); + + return 0; + +} + +int wl12xx_cmd_configure(struct wl12xx *wl, void *ie, int ie_len) +{ + int ret; + + wl12xx_debug(DEBUG_CMD, "cmd configure"); + + ret = wl12xx_cmd_send(wl, CMD_CONFIGURE, ie, + ie_len); + if (ret < 0) { + wl12xx_warning("CONFIGURE command NOK"); + return ret; + } + + return 0; + +} + +int wl12xx_cmd_vbm(struct wl12xx *wl, u8 identity, + void *bitmap, u16 bitmap_len, u8 bitmap_control) +{ + struct vbm_update_request vbm; + int ret; + + wl12xx_debug(DEBUG_CMD, "cmd vbm"); + + /* Count and period will be filled by the target */ + vbm.tim.bitmap_ctrl = bitmap_control; + if (bitmap_len > PARTIAL_VBM_MAX) { + wl12xx_warning("cmd vbm len is %d B, truncating to %d", + bitmap_len, PARTIAL_VBM_MAX); + bitmap_len = PARTIAL_VBM_MAX; + } + memcpy(vbm.tim.pvb_field, bitmap, bitmap_len); + vbm.tim.identity = identity; + vbm.tim.length = bitmap_len + 3; + + vbm.len = cpu_to_le16(bitmap_len + 5); + + ret = wl12xx_cmd_send(wl, CMD_VBM, &vbm, sizeof(vbm)); + if (ret < 0) { + wl12xx_error("VBM command failed"); + return ret; + } + + return 0; +} + +int wl12xx_cmd_data_path(struct wl12xx *wl, u8 channel, u8 enable) +{ + int ret; + u16 cmd_rx, cmd_tx; + + wl12xx_debug(DEBUG_CMD, "cmd data path"); + + if (enable) { + cmd_rx = CMD_ENABLE_RX; + cmd_tx = CMD_ENABLE_TX; + } else { + cmd_rx = CMD_DISABLE_RX; + cmd_tx = CMD_DISABLE_TX; + } + + ret = wl12xx_cmd_send(wl, cmd_rx, &channel, sizeof(channel)); + if (ret < 0) { + wl12xx_error("rx %s cmd for channel %d failed", + enable ? "start" : "stop", channel); + return ret; + } + + wl12xx_debug(DEBUG_BOOT, "rx %s cmd channel %d", + enable ? "start" : "stop", channel); + + ret = wl12xx_cmd_send(wl, cmd_tx, &channel, sizeof(channel)); + if (ret < 0) { + wl12xx_error("tx %s cmd for channel %d failed", + enable ? "start" : "stop", channel); + return ret; + } + + wl12xx_debug(DEBUG_BOOT, "tx %s cmd channel %d", + enable ? "start" : "stop", channel); + + return 0; +} + +int wl12xx_cmd_join(struct wl12xx *wl, u8 bss_type, u8 dtim_interval, + u16 beacon_interval, u8 wait) +{ + unsigned long timeout; + struct cmd_join join = {}; + int ret, i; + u8 *bssid; + + /* FIXME: this should be in main.c */ + ret = wl12xx_acx_frame_rates(wl, DEFAULT_HW_GEN_TX_RATE, + DEFAULT_HW_GEN_MODULATION_TYPE, + wl->tx_mgmt_frm_rate, + wl->tx_mgmt_frm_mod); + if (ret < 0) + return ret; + + wl12xx_debug(DEBUG_CMD, "cmd join"); + + /* Reverse order BSSID */ + bssid = (u8 *)&join.bssid_lsb; + for (i = 0; i < ETH_ALEN; i++) + bssid[i] = wl->bssid[ETH_ALEN - i - 1]; + + join.rx_config_options = wl->rx_config; + join.rx_filter_options = wl->rx_filter; + + join.basic_rate_set = RATE_MASK_1MBPS | RATE_MASK_2MBPS | + RATE_MASK_5_5MBPS | RATE_MASK_11MBPS; + + join.beacon_interval = beacon_interval; + join.dtim_interval = dtim_interval; + join.bss_type = bss_type; + join.channel = wl->channel; + join.ctrl = JOIN_CMD_CTRL_TX_FLUSH; + + ret = wl12xx_cmd_send(wl, CMD_START_JOIN, &join, sizeof(join)); + if (ret < 0) { + wl12xx_error("failed to initiate cmd join"); + return ret; + } + + timeout = msecs_to_jiffies(JOIN_TIMEOUT); + + /* + * ugly hack: we should wait for JOIN_EVENT_COMPLETE_ID but to + * simplify locking we just sleep instead, for now + */ + if (wait) + msleep(10); + + return 0; +} + +int wl12xx_cmd_ps_mode(struct wl12xx *wl, u8 ps_mode) +{ + int ret; + struct acx_ps_params ps_params; + + /* FIXME: this should be in ps.c */ + ret = wl12xx_acx_wake_up_conditions(wl, wl->listen_int); + if (ret < 0) { + wl12xx_error("Couldnt set wake up conditions"); + return ret; + } + + wl12xx_debug(DEBUG_CMD, "cmd set ps mode"); + + ps_params.ps_mode = ps_mode; + ps_params.send_null_data = 1; + ps_params.retries = 5; + ps_params.hang_over_period = 128; + ps_params.null_data_rate = 1; /* 1 Mbps */ + + ret = wl12xx_cmd_send(wl, CMD_SET_PS_MODE, &ps_params, + sizeof(ps_params)); + if (ret < 0) { + wl12xx_error("cmd set_ps_mode failed"); + return ret; + } + + return 0; +} + +int wl12xx_cmd_read_memory(struct wl12xx *wl, u32 addr, u32 len, void *answer) +{ + struct cmd_read_write_memory mem_cmd, *mem_answer; + struct wl12xx_command cmd; + int ret; + + wl12xx_debug(DEBUG_CMD, "cmd read memory"); + + memset(&mem_cmd, 0, sizeof(mem_cmd)); + mem_cmd.addr = addr; + mem_cmd.size = len; + + ret = wl12xx_cmd_send(wl, CMD_READ_MEMORY, &mem_cmd, sizeof(mem_cmd)); + if (ret < 0) { + wl12xx_error("read memory command failed: %d", ret); + return ret; + } + + /* the read command got in, we can now read the answer */ + wl12xx_spi_mem_read(wl, wl->cmd_box_addr, &cmd, + CMDMBOX_HEADER_LEN + sizeof(mem_cmd)); + + if (cmd.status != CMD_STATUS_SUCCESS) + wl12xx_error("error in read command result: %d", cmd.status); + + mem_answer = (struct cmd_read_write_memory *) cmd.parameters; + memcpy(answer, mem_answer->value, len); + + return 0; +} + +int wl12xx_cmd_template_set(struct wl12xx *wl, u16 cmd_id, + void *buf, size_t buf_len) +{ + struct wl12xx_cmd_packet_template template; + int ret; + + wl12xx_debug(DEBUG_CMD, "cmd template %d", cmd_id); + + memset(&template, 0, sizeof(template)); + + WARN_ON(buf_len > WL12XX_MAX_TEMPLATE_SIZE); + buf_len = min_t(size_t, buf_len, WL12XX_MAX_TEMPLATE_SIZE); + template.size = cpu_to_le16(buf_len); + + if (buf) + memcpy(template.template, buf, buf_len); + + ret = wl12xx_cmd_send(wl, cmd_id, &template, + sizeof(template.size) + buf_len); + if (ret < 0) { + wl12xx_warning("cmd set_template failed: %d", ret); + return ret; + } + + return 0; +} diff --git a/drivers/net/wireless/wl12xx/cmd.h b/drivers/net/wireless/wl12xx/cmd.h new file mode 100644 index 0000000..aa307dc --- /dev/null +++ b/drivers/net/wireless/wl12xx/cmd.h @@ -0,0 +1,265 @@ +/* + * This file is part of wl12xx + * + * Copyright (c) 1998-2007 Texas Instruments Incorporated + * Copyright (C) 2008 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef __WL12XX_CMD_H__ +#define __WL12XX_CMD_H__ + +#include "wl12xx.h" + +int wl12xx_cmd_send(struct wl12xx *wl, u16 type, void *buf, size_t buf_len); +int wl12xx_cmd_test(struct wl12xx *wl, void *buf, size_t buf_len, u8 answer); +int wl12xx_cmd_interrogate(struct wl12xx *wl, u16 ie_id, u16 ie_len, + void *answer); +int wl12xx_cmd_configure(struct wl12xx *wl, void *ie, int ie_len); +int wl12xx_cmd_vbm(struct wl12xx *wl, u8 identity, + void *bitmap, u16 bitmap_len, u8 bitmap_control); +int wl12xx_cmd_data_path(struct wl12xx *wl, u8 channel, u8 enable); +int wl12xx_cmd_join(struct wl12xx *wl, u8 bss_type, u8 dtim_interval, + u16 beacon_interval, u8 wait); +int wl12xx_cmd_ps_mode(struct wl12xx *wl, u8 ps_mode); +int wl12xx_cmd_read_memory(struct wl12xx *wl, u32 addr, u32 len, void *answer); +int wl12xx_cmd_template_set(struct wl12xx *wl, u16 cmd_id, + void *buf, size_t buf_len); + +/* unit ms */ +#define WL12XX_COMMAND_TIMEOUT 2000 + +#define WL12XX_MAX_TEMPLATE_SIZE 300 + +struct wl12xx_cmd_packet_template { + __le16 size; + u8 template[WL12XX_MAX_TEMPLATE_SIZE]; +} __attribute__ ((packed)); + +enum wl12xx_commands { + CMD_RESET = 0, + CMD_INTERROGATE = 1, /*use this to read information elements*/ + CMD_CONFIGURE = 2, /*use this to write information elements*/ + CMD_ENABLE_RX = 3, + CMD_ENABLE_TX = 4, + CMD_DISABLE_RX = 5, + CMD_DISABLE_TX = 6, + CMD_SCAN = 8, + CMD_STOP_SCAN = 9, + CMD_VBM = 10, + CMD_START_JOIN = 11, + CMD_SET_KEYS = 12, + CMD_READ_MEMORY = 13, + CMD_WRITE_MEMORY = 14, + CMD_BEACON = 19, + CMD_PROBE_RESP = 20, + CMD_NULL_DATA = 21, + CMD_PROBE_REQ = 22, + CMD_TEST = 23, + CMD_RADIO_CALIBRATE = 25, /* OBSOLETE */ + CMD_ENABLE_RX_PATH = 27, /* OBSOLETE */ + CMD_NOISE_HIST = 28, + CMD_RX_RESET = 29, + CMD_PS_POLL = 30, + CMD_QOS_NULL_DATA = 31, + CMD_LNA_CONTROL = 32, + CMD_SET_BCN_MODE = 33, + CMD_MEASUREMENT = 34, + CMD_STOP_MEASUREMENT = 35, + CMD_DISCONNECT = 36, + CMD_SET_PS_MODE = 37, + CMD_CHANNEL_SWITCH = 38, + CMD_STOP_CHANNEL_SWICTH = 39, + CMD_AP_DISCOVERY = 40, + CMD_STOP_AP_DISCOVERY = 41, + CMD_SPS_SCAN = 42, + CMD_STOP_SPS_SCAN = 43, + CMD_HEALTH_CHECK = 45, + CMD_DEBUG = 46, + CMD_TRIGGER_SCAN_TO = 47, + + NUM_COMMANDS, + MAX_COMMAND_ID = 0xFFFF, +}; + +#define MAX_CMD_PARAMS 572 + +struct wl12xx_command { + u16 id; + u16 status; + u8 parameters[MAX_CMD_PARAMS]; +}; + +enum { + CMD_MAILBOX_IDLE = 0, + CMD_STATUS_SUCCESS = 1, + CMD_STATUS_UNKNOWN_CMD = 2, + CMD_STATUS_UNKNOWN_IE = 3, + CMD_STATUS_REJECT_MEAS_SG_ACTIVE = 11, + CMD_STATUS_RX_BUSY = 13, + CMD_STATUS_INVALID_PARAM = 14, + CMD_STATUS_TEMPLATE_TOO_LARGE = 15, + CMD_STATUS_OUT_OF_MEMORY = 16, + CMD_STATUS_STA_TABLE_FULL = 17, + CMD_STATUS_RADIO_ERROR = 18, + CMD_STATUS_WRONG_NESTING = 19, + CMD_STATUS_TIMEOUT = 21, /* Driver internal use.*/ + CMD_STATUS_FW_RESET = 22, /* Driver internal use.*/ + MAX_COMMAND_STATUS = 0xff +}; + + +/* + * CMD_READ_MEMORY + * + * The host issues this command to read the WiLink device memory/registers. + * + * Note: The Base Band address has special handling (16 bits registers and + * addresses). For more information, see the hardware specification. + */ +/* + * CMD_WRITE_MEMORY + * + * The host issues this command to write the WiLink device memory/registers. + * + * The Base Band address has special handling (16 bits registers and + * addresses). For more information, see the hardware specification. + */ +#define MAX_READ_SIZE 256 + +struct cmd_read_write_memory { + /* The address of the memory to read from or write to.*/ + u32 addr; + + /* The amount of data in bytes to read from or write to the WiLink + * device.*/ + u32 size; + + /* The actual value read from or written to the Wilink. The source + of this field is the Host in WRITE command or the Wilink in READ + command. */ + u8 value[MAX_READ_SIZE]; +}; + +#define CMDMBOX_HEADER_LEN 4 +#define CMDMBOX_INFO_ELEM_HEADER_LEN 4 + + +struct basic_scan_parameters { + u32 rx_config_options; + u32 rx_filter_options; + + /* + * Scan options: + * bit 0: When this bit is set, passive scan. + * bit 1: Band, when this bit is set we scan + * in the 5Ghz band. + * bit 2: voice mode, 0 for normal scan. + * bit 3: scan priority, 1 for high priority. + */ + u16 scan_options; + + /* Number of channels to scan */ + u8 num_channels; + + /* Number opf probe requests to send, per channel */ + u8 num_probe_requests; + + /* Rate and modulation for probe requests */ + u16 tx_rate; + + u8 tid_trigger; + u8 ssid_len; + u32 ssid[8]; + +} __attribute__ ((packed)); + +struct basic_scan_channel_parameters { + u32 min_duration; /* in TU */ + u32 max_duration; /* in TU */ + u32 bssid_lsb; + u16 bssid_msb; + + /* + * bits 0-3: Early termination count. + * bits 4-5: Early termination condition. + */ + u8 early_termination; + + u8 tx_power_att; + u8 channel; + u8 pad[3]; +} __attribute__ ((packed)); + +/* SCAN parameters */ +#define SCAN_MAX_NUM_OF_CHANNELS 16 + +struct cmd_scan { + struct basic_scan_parameters params; + struct basic_scan_channel_parameters channels[SCAN_MAX_NUM_OF_CHANNELS]; +} __attribute__ ((packed)); + +enum { + BSS_TYPE_IBSS = 0, + BSS_TYPE_STA_BSS = 2, + BSS_TYPE_AP_BSS = 3, + MAX_BSS_TYPE = 0xFF +}; + +#define JOIN_CMD_CTRL_TX_FLUSH 0x80 /* Firmware flushes all Tx */ +#define JOIN_CMD_CTRL_EARLY_WAKEUP_ENABLE 0x01 /* Early wakeup time */ + + +struct cmd_join { + u32 bssid_lsb; + u16 bssid_msb; + u16 beacon_interval; /* in TBTTs */ + u32 rx_config_options; + u32 rx_filter_options; + + /* + * The target uses this field to determine the rate at + * which to transmit control frame responses (such as + * ACK or CTS frames). + */ + u16 basic_rate_set; + u8 dtim_interval; + u8 tx_ctrl_frame_rate; /* OBSOLETE */ + u8 tx_ctrl_frame_mod; /* OBSOLETE */ + /* + * bits 0-2: This bitwise field specifies the type + * of BSS to start or join (BSS_TYPE_*). + * bit 4: Band - The radio band in which to join + * or start. + * 0 - 2.4GHz band + * 1 - 5GHz band + * bits 3, 5-7: Reserved + */ + u8 bss_type; + u8 channel; + u8 ssid_len; + u8 ssid[IW_ESSID_MAX_SIZE]; + u8 ctrl; /* JOIN_CMD_CTRL_* */ + u8 tx_mgt_frame_rate; /* OBSOLETE */ + u8 tx_mgt_frame_mod; /* OBSOLETE */ + u8 reserved; +} __attribute__ ((packed)); + + +#endif /* __WL12XX_CMD_H__ */ diff --git a/drivers/net/wireless/wl12xx/debugfs.c b/drivers/net/wireless/wl12xx/debugfs.c new file mode 100644 index 0000000..cdb368c --- /dev/null +++ b/drivers/net/wireless/wl12xx/debugfs.c @@ -0,0 +1,508 @@ +/* + * This file is part of wl12xx + * + * Copyright (C) 2009 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include "debugfs.h" + +#include <linux/skbuff.h> + +#include "wl12xx.h" +#include "acx.h" + +/* ms */ +#define WL12XX_DEBUGFS_STATS_LIFETIME 1000 + +/* debugfs macros idea from mac80211 */ + +#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \ +static ssize_t name## _read(struct file *file, char __user *userbuf, \ + size_t count, loff_t *ppos) \ +{ \ + struct wl12xx *wl = file->private_data; \ + char buf[buflen]; \ + int res; \ + \ + res = scnprintf(buf, buflen, fmt "\n", ##value); \ + return simple_read_from_buffer(userbuf, count, ppos, buf, res); \ +} \ + \ +static const struct file_operations name## _ops = { \ + .read = name## _read, \ + .open = wl12xx_open_file_generic, \ +}; + +#define DEBUGFS_ADD(name, parent) \ + wl->debugfs.name = debugfs_create_file(#name, 0400, parent, \ + wl, &name## _ops); \ + if (IS_ERR(wl->debugfs.name)) { \ + ret = PTR_ERR(wl->debugfs.name); \ + wl->debugfs.name = NULL; \ + goto out; \ + } + +#define DEBUGFS_DEL(name) \ + do { \ + debugfs_remove(wl->debugfs.name); \ + wl->debugfs.name = NULL; \ + } while (0) + +#define DEBUGFS_FWSTATS_FILE(sub, name, buflen, fmt) \ +static ssize_t sub## _ ##name## _read(struct file *file, \ + char __user *userbuf, \ + size_t count, loff_t *ppos) \ +{ \ + struct wl12xx *wl = file->private_data; \ + char buf[buflen]; \ + int res; \ + \ + wl12xx_debugfs_update_stats(wl); \ + \ + res = scnprintf(buf, buflen, fmt "\n", \ + wl->stats.fw_stats->sub.name); \ + return simple_read_from_buffer(userbuf, count, ppos, buf, res); \ +} \ + \ +static const struct file_operations sub## _ ##name## _ops = { \ + .read = sub## _ ##name## _read, \ + .open = wl12xx_open_file_generic, \ +}; + +#define DEBUGFS_FWSTATS_ADD(sub, name) \ + DEBUGFS_ADD(sub## _ ##name, wl->debugfs.fw_statistics) + +#define DEBUGFS_FWSTATS_DEL(sub, name) \ + DEBUGFS_DEL(sub## _ ##name) + +static void wl12xx_debugfs_update_stats(struct wl12xx *wl) +{ + mutex_lock(&wl->mutex); + + if (wl->state == WL12XX_STATE_ON && + time_after(jiffies, wl->stats.fw_stats_update + + msecs_to_jiffies(WL12XX_DEBUGFS_STATS_LIFETIME))) { + wl12xx_acx_statistics(wl, wl->stats.fw_stats); + wl->stats.fw_stats_update = jiffies; + } + + mutex_unlock(&wl->mutex); +} + +static int wl12xx_open_file_generic(struct inode *inode, struct file *file) +{ + file->private_data = inode->i_private; + return 0; +} + +DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, 20, "%u"); + +DEBUGFS_FWSTATS_FILE(rx, out_of_mem, 20, "%u"); +DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, 20, "%u"); +DEBUGFS_FWSTATS_FILE(rx, hw_stuck, 20, "%u"); +DEBUGFS_FWSTATS_FILE(rx, dropped, 20, "%u"); +DEBUGFS_FWSTATS_FILE(rx, fcs_err, 20, "%u"); +DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, 20, "%u"); +DEBUGFS_FWSTATS_FILE(rx, path_reset, 20, "%u"); +DEBUGFS_FWSTATS_FILE(rx, reset_counter, 20, "%u"); + +DEBUGFS_FWSTATS_FILE(dma, rx_requested, 20, "%u"); +DEBUGFS_FWSTATS_FILE(dma, rx_errors, 20, "%u"); +DEBUGFS_FWSTATS_FILE(dma, tx_requested, 20, "%u"); +DEBUGFS_FWSTATS_FILE(dma, tx_errors, 20, "%u"); + +DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, 20, "%u"); +DEBUGFS_FWSTATS_FILE(isr, fiqs, 20, "%u"); +DEBUGFS_FWSTATS_FILE(isr, rx_headers, 20, "%u"); +DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, 20, "%u"); +DEBUGFS_FWSTATS_FILE(isr, rx_rdys, 20, "%u"); +DEBUGFS_FWSTATS_FILE(isr, irqs, 20, "%u"); +DEBUGFS_FWSTATS_FILE(isr, tx_procs, 20, "%u"); +DEBUGFS_FWSTATS_FILE(isr, decrypt_done, 20, "%u"); +DEBUGFS_FWSTATS_FILE(isr, dma0_done, 20, "%u"); +DEBUGFS_FWSTATS_FILE(isr, dma1_done, 20, "%u"); +DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, 20, "%u"); +DEBUGFS_FWSTATS_FILE(isr, commands, 20, "%u"); +DEBUGFS_FWSTATS_FILE(isr, rx_procs, 20, "%u"); +DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, 20, "%u"); +DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, 20, "%u"); +DEBUGFS_FWSTATS_FILE(isr, pci_pm, 20, "%u"); +DEBUGFS_FWSTATS_FILE(isr, wakeups, 20, "%u"); +DEBUGFS_FWSTATS_FILE(isr, low_rssi, 20, "%u"); + +DEBUGFS_FWSTATS_FILE(wep, addr_key_count, 20, "%u"); +DEBUGFS_FWSTATS_FILE(wep, default_key_count, 20, "%u"); +/* skipping wep.reserved */ +DEBUGFS_FWSTATS_FILE(wep, key_not_found, 20, "%u"); +DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, 20, "%u"); +DEBUGFS_FWSTATS_FILE(wep, packets, 20, "%u"); +DEBUGFS_FWSTATS_FILE(wep, interrupt, 20, "%u"); + +DEBUGFS_FWSTATS_FILE(pwr, ps_enter, 20, "%u"); +DEBUGFS_FWSTATS_FILE(pwr, elp_enter, 20, "%u"); +DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, 20, "%u"); +DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, 20, "%u"); +DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, 20, "%u"); +DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, 20, "%u"); +DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, 20, "%u"); +DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, 20, "%u"); +DEBUGFS_FWSTATS_FILE(pwr, power_save_off, 20, "%u"); +DEBUGFS_FWSTATS_FILE(pwr, enable_ps, 20, "%u"); +DEBUGFS_FWSTATS_FILE(pwr, disable_ps, 20, "%u"); +DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, 20, "%u"); +/* skipping cont_miss_bcns_spread for now */ +DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, 20, "%u"); + +DEBUGFS_FWSTATS_FILE(mic, rx_pkts, 20, "%u"); +DEBUGFS_FWSTATS_FILE(mic, calc_failure, 20, "%u"); + +DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, 20, "%u"); +DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, 20, "%u"); +DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, 20, "%u"); +DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, 20, "%u"); +DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, 20, "%u"); +DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, 20, "%u"); + +DEBUGFS_FWSTATS_FILE(event, heart_beat, 20, "%u"); +DEBUGFS_FWSTATS_FILE(event, calibration, 20, "%u"); +DEBUGFS_FWSTATS_FILE(event, rx_mismatch, 20, "%u"); +DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, 20, "%u"); +DEBUGFS_FWSTATS_FILE(event, rx_pool, 20, "%u"); +DEBUGFS_FWSTATS_FILE(event, oom_late, 20, "%u"); +DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, 20, "%u"); +DEBUGFS_FWSTATS_FILE(event, tx_stuck, 20, "%u"); + +DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, 20, "%u"); +DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, 20, "%u"); +DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, 20, "%u"); +DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, 20, "%u"); +DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, 20, "%u"); +DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, 20, "%u"); +DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, 20, "%u"); + +DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, 20, "%u"); +DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, 20, "%u"); +DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data, + 20, "%u"); +DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, 20, "%u"); +DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, 20, "%u"); + +DEBUGFS_READONLY_FILE(retry_count, 20, "%u", wl->stats.retry_count); +DEBUGFS_READONLY_FILE(excessive_retries, 20, "%u", + wl->stats.excessive_retries); + +static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct wl12xx *wl = file->private_data; + u32 queue_len; + char buf[20]; + int res; + + queue_len = skb_queue_len(&wl->tx_queue); + + res = scnprintf(buf, sizeof(buf), "%u\n", queue_len); + return simple_read_from_buffer(userbuf, count, ppos, buf, res); +} + +static const struct file_operations tx_queue_len_ops = { + .read = tx_queue_len_read, + .open = wl12xx_open_file_generic, +}; + +static void wl12xx_debugfs_delete_files(struct wl12xx *wl) +{ + DEBUGFS_FWSTATS_DEL(tx, internal_desc_overflow); + + DEBUGFS_FWSTATS_DEL(rx, out_of_mem); + DEBUGFS_FWSTATS_DEL(rx, hdr_overflow); + DEBUGFS_FWSTATS_DEL(rx, hw_stuck); + DEBUGFS_FWSTATS_DEL(rx, dropped); + DEBUGFS_FWSTATS_DEL(rx, fcs_err); + DEBUGFS_FWSTATS_DEL(rx, xfr_hint_trig); + DEBUGFS_FWSTATS_DEL(rx, path_reset); + DEBUGFS_FWSTATS_DEL(rx, reset_counter); + + DEBUGFS_FWSTATS_DEL(dma, rx_requested); + DEBUGFS_FWSTATS_DEL(dma, rx_errors); + DEBUGFS_FWSTATS_DEL(dma, tx_requested); + DEBUGFS_FWSTATS_DEL(dma, tx_errors); + + DEBUGFS_FWSTATS_DEL(isr, cmd_cmplt); + DEBUGFS_FWSTATS_DEL(isr, fiqs); + DEBUGFS_FWSTATS_DEL(isr, rx_headers); + DEBUGFS_FWSTATS_DEL(isr, rx_mem_overflow); + DEBUGFS_FWSTATS_DEL(isr, rx_rdys); + DEBUGFS_FWSTATS_DEL(isr, irqs); + DEBUGFS_FWSTATS_DEL(isr, tx_procs); + DEBUGFS_FWSTATS_DEL(isr, decrypt_done); + DEBUGFS_FWSTATS_DEL(isr, dma0_done); + DEBUGFS_FWSTATS_DEL(isr, dma1_done); + DEBUGFS_FWSTATS_DEL(isr, tx_exch_complete); + DEBUGFS_FWSTATS_DEL(isr, commands); + DEBUGFS_FWSTATS_DEL(isr, rx_procs); + DEBUGFS_FWSTATS_DEL(isr, hw_pm_mode_changes); + DEBUGFS_FWSTATS_DEL(isr, host_acknowledges); + DEBUGFS_FWSTATS_DEL(isr, pci_pm); + DEBUGFS_FWSTATS_DEL(isr, wakeups); + DEBUGFS_FWSTATS_DEL(isr, low_rssi); + + DEBUGFS_FWSTATS_DEL(wep, addr_key_count); + DEBUGFS_FWSTATS_DEL(wep, default_key_count); + /* skipping wep.reserved */ + DEBUGFS_FWSTATS_DEL(wep, key_not_found); + DEBUGFS_FWSTATS_DEL(wep, decrypt_fail); + DEBUGFS_FWSTATS_DEL(wep, packets); + DEBUGFS_FWSTATS_DEL(wep, interrupt); + + DEBUGFS_FWSTATS_DEL(pwr, ps_enter); + DEBUGFS_FWSTATS_DEL(pwr, elp_enter); + DEBUGFS_FWSTATS_DEL(pwr, missing_bcns); + DEBUGFS_FWSTATS_DEL(pwr, wake_on_host); + DEBUGFS_FWSTATS_DEL(pwr, wake_on_timer_exp); + DEBUGFS_FWSTATS_DEL(pwr, tx_with_ps); + DEBUGFS_FWSTATS_DEL(pwr, tx_without_ps); + DEBUGFS_FWSTATS_DEL(pwr, rcvd_beacons); + DEBUGFS_FWSTATS_DEL(pwr, power_save_off); + DEBUGFS_FWSTATS_DEL(pwr, enable_ps); + DEBUGFS_FWSTATS_DEL(pwr, disable_ps); + DEBUGFS_FWSTATS_DEL(pwr, fix_tsf_ps); + /* skipping cont_miss_bcns_spread for now */ + DEBUGFS_FWSTATS_DEL(pwr, rcvd_awake_beacons); + + DEBUGFS_FWSTATS_DEL(mic, rx_pkts); + DEBUGFS_FWSTATS_DEL(mic, calc_failure); + + DEBUGFS_FWSTATS_DEL(aes, encrypt_fail); + DEBUGFS_FWSTATS_DEL(aes, decrypt_fail); + DEBUGFS_FWSTATS_DEL(aes, encrypt_packets); + DEBUGFS_FWSTATS_DEL(aes, decrypt_packets); + DEBUGFS_FWSTATS_DEL(aes, encrypt_interrupt); + DEBUGFS_FWSTATS_DEL(aes, decrypt_interrupt); + + DEBUGFS_FWSTATS_DEL(event, heart_beat); + DEBUGFS_FWSTATS_DEL(event, calibration); + DEBUGFS_FWSTATS_DEL(event, rx_mismatch); + DEBUGFS_FWSTATS_DEL(event, rx_mem_empty); + DEBUGFS_FWSTATS_DEL(event, rx_pool); + DEBUGFS_FWSTATS_DEL(event, oom_late); + DEBUGFS_FWSTATS_DEL(event, phy_transmit_error); + DEBUGFS_FWSTATS_DEL(event, tx_stuck); + + DEBUGFS_FWSTATS_DEL(ps, pspoll_timeouts); + DEBUGFS_FWSTATS_DEL(ps, upsd_timeouts); + DEBUGFS_FWSTATS_DEL(ps, upsd_max_sptime); + DEBUGFS_FWSTATS_DEL(ps, upsd_max_apturn); + DEBUGFS_FWSTATS_DEL(ps, pspoll_max_apturn); + DEBUGFS_FWSTATS_DEL(ps, pspoll_utilization); + DEBUGFS_FWSTATS_DEL(ps, upsd_utilization); + + DEBUGFS_FWSTATS_DEL(rxpipe, rx_prep_beacon_drop); + DEBUGFS_FWSTATS_DEL(rxpipe, descr_host_int_trig_rx_data); + DEBUGFS_FWSTATS_DEL(rxpipe, beacon_buffer_thres_host_int_trig_rx_data); + DEBUGFS_FWSTATS_DEL(rxpipe, missed_beacon_host_int_trig_rx_data); + DEBUGFS_FWSTATS_DEL(rxpipe, tx_xfr_host_int_trig_rx_data); + + DEBUGFS_DEL(tx_queue_len); + DEBUGFS_DEL(retry_count); + DEBUGFS_DEL(excessive_retries); +} + +static int wl12xx_debugfs_add_files(struct wl12xx *wl) +{ + int ret = 0; + + DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow); + + DEBUGFS_FWSTATS_ADD(rx, out_of_mem); + DEBUGFS_FWSTATS_ADD(rx, hdr_overflow); + DEBUGFS_FWSTATS_ADD(rx, hw_stuck); + DEBUGFS_FWSTATS_ADD(rx, dropped); + DEBUGFS_FWSTATS_ADD(rx, fcs_err); + DEBUGFS_FWSTATS_ADD(rx, xfr_hint_trig); + DEBUGFS_FWSTATS_ADD(rx, path_reset); + DEBUGFS_FWSTATS_ADD(rx, reset_counter); + + DEBUGFS_FWSTATS_ADD(dma, rx_requested); + DEBUGFS_FWSTATS_ADD(dma, rx_errors); + DEBUGFS_FWSTATS_ADD(dma, tx_requested); + DEBUGFS_FWSTATS_ADD(dma, tx_errors); + + DEBUGFS_FWSTATS_ADD(isr, cmd_cmplt); + DEBUGFS_FWSTATS_ADD(isr, fiqs); + DEBUGFS_FWSTATS_ADD(isr, rx_headers); + DEBUGFS_FWSTATS_ADD(isr, rx_mem_overflow); + DEBUGFS_FWSTATS_ADD(isr, rx_rdys); + DEBUGFS_FWSTATS_ADD(isr, irqs); + DEBUGFS_FWSTATS_ADD(isr, tx_procs); + DEBUGFS_FWSTATS_ADD(isr, decrypt_done); + DEBUGFS_FWSTATS_ADD(isr, dma0_done); + DEBUGFS_FWSTATS_ADD(isr, dma1_done); + DEBUGFS_FWSTATS_ADD(isr, tx_exch_complete); + DEBUGFS_FWSTATS_ADD(isr, commands); + DEBUGFS_FWSTATS_ADD(isr, rx_procs); + DEBUGFS_FWSTATS_ADD(isr, hw_pm_mode_changes); + DEBUGFS_FWSTATS_ADD(isr, host_acknowledges); + DEBUGFS_FWSTATS_ADD(isr, pci_pm); + DEBUGFS_FWSTATS_ADD(isr, wakeups); + DEBUGFS_FWSTATS_ADD(isr, low_rssi); + + DEBUGFS_FWSTATS_ADD(wep, addr_key_count); + DEBUGFS_FWSTATS_ADD(wep, default_key_count); + /* skipping wep.reserved */ + DEBUGFS_FWSTATS_ADD(wep, key_not_found); + DEBUGFS_FWSTATS_ADD(wep, decrypt_fail); + DEBUGFS_FWSTATS_ADD(wep, packets); + DEBUGFS_FWSTATS_ADD(wep, interrupt); + + DEBUGFS_FWSTATS_ADD(pwr, ps_enter); + DEBUGFS_FWSTATS_ADD(pwr, elp_enter); + DEBUGFS_FWSTATS_ADD(pwr, missing_bcns); + DEBUGFS_FWSTATS_ADD(pwr, wake_on_host); + DEBUGFS_FWSTATS_ADD(pwr, wake_on_timer_exp); + DEBUGFS_FWSTATS_ADD(pwr, tx_with_ps); + DEBUGFS_FWSTATS_ADD(pwr, tx_without_ps); + DEBUGFS_FWSTATS_ADD(pwr, rcvd_beacons); + DEBUGFS_FWSTATS_ADD(pwr, power_save_off); + DEBUGFS_FWSTATS_ADD(pwr, enable_ps); + DEBUGFS_FWSTATS_ADD(pwr, disable_ps); + DEBUGFS_FWSTATS_ADD(pwr, fix_tsf_ps); + /* skipping cont_miss_bcns_spread for now */ + DEBUGFS_FWSTATS_ADD(pwr, rcvd_awake_beacons); + + DEBUGFS_FWSTATS_ADD(mic, rx_pkts); + DEBUGFS_FWSTATS_ADD(mic, calc_failure); + + DEBUGFS_FWSTATS_ADD(aes, encrypt_fail); + DEBUGFS_FWSTATS_ADD(aes, decrypt_fail); + DEBUGFS_FWSTATS_ADD(aes, encrypt_packets); + DEBUGFS_FWSTATS_ADD(aes, decrypt_packets); + DEBUGFS_FWSTATS_ADD(aes, encrypt_interrupt); + DEBUGFS_FWSTATS_ADD(aes, decrypt_interrupt); + + DEBUGFS_FWSTATS_ADD(event, heart_beat); + DEBUGFS_FWSTATS_ADD(event, calibration); + DEBUGFS_FWSTATS_ADD(event, rx_mismatch); + DEBUGFS_FWSTATS_ADD(event, rx_mem_empty); + DEBUGFS_FWSTATS_ADD(event, rx_pool); + DEBUGFS_FWSTATS_ADD(event, oom_late); + DEBUGFS_FWSTATS_ADD(event, phy_transmit_error); + DEBUGFS_FWSTATS_ADD(event, tx_stuck); + + DEBUGFS_FWSTATS_ADD(ps, pspoll_timeouts); + DEBUGFS_FWSTATS_ADD(ps, upsd_timeouts); + DEBUGFS_FWSTATS_ADD(ps, upsd_max_sptime); + DEBUGFS_FWSTATS_ADD(ps, upsd_max_apturn); + DEBUGFS_FWSTATS_ADD(ps, pspoll_max_apturn); + DEBUGFS_FWSTATS_ADD(ps, pspoll_utilization); + DEBUGFS_FWSTATS_ADD(ps, upsd_utilization); + + DEBUGFS_FWSTATS_ADD(rxpipe, rx_prep_beacon_drop); + DEBUGFS_FWSTATS_ADD(rxpipe, descr_host_int_trig_rx_data); + DEBUGFS_FWSTATS_ADD(rxpipe, beacon_buffer_thres_host_int_trig_rx_data); + DEBUGFS_FWSTATS_ADD(rxpipe, missed_beacon_host_int_trig_rx_data); + DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data); + + DEBUGFS_ADD(tx_queue_len, wl->debugfs.rootdir); + DEBUGFS_ADD(retry_count, wl->debugfs.rootdir); + DEBUGFS_ADD(excessive_retries, wl->debugfs.rootdir); + +out: + if (ret < 0) + wl12xx_debugfs_delete_files(wl); + + return ret; +} + +void wl12xx_debugfs_reset(struct wl12xx *wl) +{ + memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats)); + wl->stats.retry_count = 0; + wl->stats.excessive_retries = 0; +} + +int wl12xx_debugfs_init(struct wl12xx *wl) +{ + int ret; + + wl->debugfs.rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL); + + if (IS_ERR(wl->debugfs.rootdir)) { + ret = PTR_ERR(wl->debugfs.rootdir); + wl->debugfs.rootdir = NULL; + goto err; + } + + wl->debugfs.fw_statistics = debugfs_create_dir("fw-statistics", + wl->debugfs.rootdir); + + if (IS_ERR(wl->debugfs.fw_statistics)) { + ret = PTR_ERR(wl->debugfs.fw_statistics); + wl->debugfs.fw_statistics = NULL; + goto err_root; + } + + wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats), + GFP_KERNEL); + + if (!wl->stats.fw_stats) { + ret = -ENOMEM; + goto err_fw; + } + + wl->stats.fw_stats_update = jiffies; + + ret = wl12xx_debugfs_add_files(wl); + + if (ret < 0) + goto err_file; + + return 0; + +err_file: + kfree(wl->stats.fw_stats); + wl->stats.fw_stats = NULL; + +err_fw: + debugfs_remove(wl->debugfs.fw_statistics); + wl->debugfs.fw_statistics = NULL; + +err_root: + debugfs_remove(wl->debugfs.rootdir); + wl->debugfs.rootdir = NULL; + +err: + return ret; +} + +void wl12xx_debugfs_exit(struct wl12xx *wl) +{ + wl12xx_debugfs_delete_files(wl); + + kfree(wl->stats.fw_stats); + wl->stats.fw_stats = NULL; + + debugfs_remove(wl->debugfs.fw_statistics); + wl->debugfs.fw_statistics = NULL; + + debugfs_remove(wl->debugfs.rootdir); + wl->debugfs.rootdir = NULL; + +} diff --git a/drivers/net/wireless/wl12xx/debugfs.h b/drivers/net/wireless/wl12xx/debugfs.h new file mode 100644 index 0000000..562cdcb --- /dev/null +++ b/drivers/net/wireless/wl12xx/debugfs.h @@ -0,0 +1,33 @@ +/* + * This file is part of wl12xx + * + * Copyright (C) 2009 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef WL12XX_DEBUGFS_H +#define WL12XX_DEBUGFS_H + +#include "wl12xx.h" + +int wl12xx_debugfs_init(struct wl12xx *wl); +void wl12xx_debugfs_exit(struct wl12xx *wl); +void wl12xx_debugfs_reset(struct wl12xx *wl); + +#endif /* WL12XX_DEBUGFS_H */ diff --git a/drivers/net/wireless/wl12xx/event.c b/drivers/net/wireless/wl12xx/event.c new file mode 100644 index 0000000..99529ca --- /dev/null +++ b/drivers/net/wireless/wl12xx/event.c @@ -0,0 +1,127 @@ +/* + * This file is part of wl12xx + * + * Copyright (c) 1998-2007 Texas Instruments Incorporated + * Copyright (C) 2008 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include "wl12xx.h" +#include "reg.h" +#include "spi.h" +#include "event.h" +#include "ps.h" + +static int wl12xx_event_scan_complete(struct wl12xx *wl, + struct event_mailbox *mbox) +{ + wl12xx_debug(DEBUG_EVENT, "status: 0x%x, channels: %d", + mbox->scheduled_scan_status, + mbox->scheduled_scan_channels); + + if (wl->scanning) { + mutex_unlock(&wl->mutex); + ieee80211_scan_completed(wl->hw, false); + mutex_lock(&wl->mutex); + wl->scanning = false; + } + + return 0; +} + +static void wl12xx_event_mbox_dump(struct event_mailbox *mbox) +{ + wl12xx_debug(DEBUG_EVENT, "MBOX DUMP:"); + wl12xx_debug(DEBUG_EVENT, "\tvector: 0x%x", mbox->events_vector); + wl12xx_debug(DEBUG_EVENT, "\tmask: 0x%x", mbox->events_mask); +} + +static int wl12xx_event_process(struct wl12xx *wl, struct event_mailbox *mbox) +{ + int ret; + u32 vector; + + wl12xx_event_mbox_dump(mbox); + + vector = mbox->events_vector & ~(mbox->events_mask); + wl12xx_debug(DEBUG_EVENT, "vector: 0x%x", vector); + + if (vector & SCAN_COMPLETE_EVENT_ID) { + ret = wl12xx_event_scan_complete(wl, mbox); + if (ret < 0) + return ret; + } + + if (vector & BSS_LOSE_EVENT_ID) { + wl12xx_debug(DEBUG_EVENT, "BSS_LOSE_EVENT"); + + if (wl->psm_requested && wl->psm) { + ret = wl12xx_ps_set_mode(wl, STATION_ACTIVE_MODE); + if (ret < 0) + return ret; + } + } + + return 0; +} + +int wl12xx_event_unmask(struct wl12xx *wl) +{ + int ret; + + ret = wl12xx_acx_event_mbox_mask(wl, ~(wl->event_mask)); + if (ret < 0) + return ret; + + return 0; +} + +void wl12xx_event_mbox_config(struct wl12xx *wl) +{ + wl->mbox_ptr[0] = wl12xx_reg_read32(wl, REG_EVENT_MAILBOX_PTR); + wl->mbox_ptr[1] = wl->mbox_ptr[0] + sizeof(struct event_mailbox); + + wl12xx_debug(DEBUG_EVENT, "MBOX ptrs: 0x%x 0x%x", + wl->mbox_ptr[0], wl->mbox_ptr[1]); +} + +int wl12xx_event_handle(struct wl12xx *wl, u8 mbox_num) +{ + struct event_mailbox mbox; + int ret; + + wl12xx_debug(DEBUG_EVENT, "EVENT on mbox %d", mbox_num); + + if (mbox_num > 1) + return -EINVAL; + + /* first we read the mbox descriptor */ + wl12xx_spi_mem_read(wl, wl->mbox_ptr[mbox_num], &mbox, + sizeof(struct event_mailbox)); + + /* process the descriptor */ + ret = wl12xx_event_process(wl, &mbox); + if (ret < 0) + return ret; + + /* then we let the firmware know it can go on...*/ + wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_EVENT_ACK); + + return 0; +} diff --git a/drivers/net/wireless/wl12xx/event.h b/drivers/net/wireless/wl12xx/event.h new file mode 100644 index 0000000..1f4c2f7 --- /dev/null +++ b/drivers/net/wireless/wl12xx/event.h @@ -0,0 +1,121 @@ +/* + * This file is part of wl12xx + * + * Copyright (c) 1998-2007 Texas Instruments Incorporated + * Copyright (C) 2008 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef __WL12XX_EVENT_H__ +#define __WL12XX_EVENT_H__ + +/* + * Mbox events + * + * The event mechanism is based on a pair of event buffers (buffers A and + * B) at fixed locations in the target's memory. The host processes one + * buffer while the other buffer continues to collect events. If the host + * is not processing events, an interrupt is issued to signal that a buffer + * is ready. Once the host is done with processing events from one buffer, + * it signals the target (with an ACK interrupt) that the event buffer is + * free. + */ + +enum { + RESERVED1_EVENT_ID = BIT(0), + RESERVED2_EVENT_ID = BIT(1), + MEASUREMENT_START_EVENT_ID = BIT(2), + SCAN_COMPLETE_EVENT_ID = BIT(3), + CALIBRATION_COMPLETE_EVENT_ID = BIT(4), + ROAMING_TRIGGER_LOW_RSSI_EVENT_ID = BIT(5), + PS_REPORT_EVENT_ID = BIT(6), + SYNCHRONIZATION_TIMEOUT_EVENT_ID = BIT(7), + HEALTH_REPORT_EVENT_ID = BIT(8), + ACI_DETECTION_EVENT_ID = BIT(9), + DEBUG_REPORT_EVENT_ID = BIT(10), + MAC_STATUS_EVENT_ID = BIT(11), + DISCONNECT_EVENT_COMPLETE_ID = BIT(12), + JOIN_EVENT_COMPLETE_ID = BIT(13), + CHANNEL_SWITCH_COMPLETE_EVENT_ID = BIT(14), + BSS_LOSE_EVENT_ID = BIT(15), + ROAMING_TRIGGER_MAX_TX_RETRY_EVENT_ID = BIT(16), + MEASUREMENT_COMPLETE_EVENT_ID = BIT(17), + AP_DISCOVERY_COMPLETE_EVENT_ID = BIT(18), + SCHEDULED_SCAN_COMPLETE_EVENT_ID = BIT(19), + PSPOLL_DELIVERY_FAILURE_EVENT_ID = BIT(20), + RESET_BSS_EVENT_ID = BIT(21), + REGAINED_BSS_EVENT_ID = BIT(22), + ROAMING_TRIGGER_REGAINED_RSSI_EVENT_ID = BIT(23), + ROAMING_TRIGGER_LOW_SNR_EVENT_ID = BIT(24), + ROAMING_TRIGGER_REGAINED_SNR_EVENT_ID = BIT(25), + + DBG_EVENT_ID = BIT(26), + BT_PTA_SENSE_EVENT_ID = BIT(27), + BT_PTA_PREDICTION_EVENT_ID = BIT(28), + BT_PTA_AVALANCHE_EVENT_ID = BIT(29), + + PLT_RX_CALIBRATION_COMPLETE_EVENT_ID = BIT(30), + + EVENT_MBOX_ALL_EVENT_ID = 0x7fffffff, +}; + +struct event_debug_report { + u8 debug_event_id; + u8 num_params; + u16 pad; + u32 report_1; + u32 report_2; + u32 report_3; +} __attribute__ ((packed)); + +struct event_mailbox { + u32 events_vector; + u32 events_mask; + u32 reserved_1; + u32 reserved_2; + + char average_rssi_level; + u8 ps_status; + u8 channel_switch_status; + u8 scheduled_scan_status; + + /* Channels scanned by the scheduled scan */ + u16 scheduled_scan_channels; + + /* If bit 0 is set -> target's fatal error */ + u16 health_report; + u16 bad_fft_counter; + u8 bt_pta_sense_info; + u8 bt_pta_protective_info; + u32 reserved; + u32 debug_report[2]; + + /* Number of FCS errors since last event */ + u32 fcs_err_counter; + + struct event_debug_report report; + u8 average_snr_level; + u8 padding[19]; +} __attribute__ ((packed)); + +int wl12xx_event_unmask(struct wl12xx *wl); +void wl12xx_event_mbox_config(struct wl12xx *wl); +int wl12xx_event_handle(struct wl12xx *wl, u8 mbox); + +#endif diff --git a/drivers/net/wireless/wl12xx/init.c b/drivers/net/wireless/wl12xx/init.c new file mode 100644 index 0000000..2a573a6 --- /dev/null +++ b/drivers/net/wireless/wl12xx/init.c @@ -0,0 +1,200 @@ +/* + * This file is part of wl12xx + * + * Copyright (C) 2009 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include <linux/kernel.h> +#include <linux/module.h> + +#include "init.h" +#include "wl12xx_80211.h" +#include "acx.h" +#include "cmd.h" + +int wl12xx_hw_init_hwenc_config(struct wl12xx *wl) +{ + int ret; + + ret = wl12xx_acx_feature_cfg(wl); + if (ret < 0) { + wl12xx_warning("couldn't set feature config"); + return ret; + } + + ret = wl12xx_acx_default_key(wl, wl->default_key); + if (ret < 0) { + wl12xx_warning("couldn't set default key"); + return ret; + } + + return 0; +} + +int wl12xx_hw_init_templates_config(struct wl12xx *wl) +{ + int ret; + u8 partial_vbm[PARTIAL_VBM_MAX]; + + /* send empty templates for fw memory reservation */ + ret = wl12xx_cmd_template_set(wl, CMD_PROBE_REQ, NULL, + sizeof(struct wl12xx_probe_req_template)); + if (ret < 0) + return ret; + + ret = wl12xx_cmd_template_set(wl, CMD_NULL_DATA, NULL, + sizeof(struct wl12xx_null_data_template)); + if (ret < 0) + return ret; + + ret = wl12xx_cmd_template_set(wl, CMD_PS_POLL, NULL, + sizeof(struct wl12xx_ps_poll_template)); + if (ret < 0) + return ret; + + ret = wl12xx_cmd_template_set(wl, CMD_QOS_NULL_DATA, NULL, + sizeof + (struct wl12xx_qos_null_data_template)); + if (ret < 0) + return ret; + + ret = wl12xx_cmd_template_set(wl, CMD_PROBE_RESP, NULL, + sizeof + (struct wl12xx_probe_resp_template)); + if (ret < 0) + return ret; + + ret = wl12xx_cmd_template_set(wl, CMD_BEACON, NULL, + sizeof + (struct wl12xx_beacon_template)); + if (ret < 0) + return ret; + + /* tim templates, first reserve space then allocate an empty one */ + memset(partial_vbm, 0, PARTIAL_VBM_MAX); + ret = wl12xx_cmd_vbm(wl, TIM_ELE_ID, partial_vbm, PARTIAL_VBM_MAX, 0); + if (ret < 0) + return ret; + + ret = wl12xx_cmd_vbm(wl, TIM_ELE_ID, partial_vbm, 1, 0); + if (ret < 0) + return ret; + + return 0; +} + +int wl12xx_hw_init_rx_config(struct wl12xx *wl, u32 config, u32 filter) +{ + int ret; + + ret = wl12xx_acx_rx_msdu_life_time(wl, RX_MSDU_LIFETIME_DEF); + if (ret < 0) + return ret; + + ret = wl12xx_acx_rx_config(wl, config, filter); + if (ret < 0) + return ret; + + return 0; +} + +int wl12xx_hw_init_phy_config(struct wl12xx *wl) +{ + int ret; + + ret = wl12xx_acx_pd_threshold(wl); + if (ret < 0) + return ret; + + ret = wl12xx_acx_slot(wl, DEFAULT_SLOT_TIME); + if (ret < 0) + return ret; + + ret = wl12xx_acx_group_address_tbl(wl); + if (ret < 0) + return ret; + + ret = wl12xx_acx_service_period_timeout(wl); + if (ret < 0) + return ret; + + ret = wl12xx_acx_rts_threshold(wl, RTS_THRESHOLD_DEF); + if (ret < 0) + return ret; + + return 0; +} + +int wl12xx_hw_init_beacon_filter(struct wl12xx *wl) +{ + int ret; + + ret = wl12xx_acx_beacon_filter_opt(wl); + if (ret < 0) + return ret; + + ret = wl12xx_acx_beacon_filter_table(wl); + if (ret < 0) + return ret; + + return 0; +} + +int wl12xx_hw_init_pta(struct wl12xx *wl) +{ + int ret; + + ret = wl12xx_acx_sg_enable(wl); + if (ret < 0) + return ret; + + ret = wl12xx_acx_sg_cfg(wl); + if (ret < 0) + return ret; + + return 0; +} + +int wl12xx_hw_init_energy_detection(struct wl12xx *wl) +{ + int ret; + + ret = wl12xx_acx_cca_threshold(wl); + if (ret < 0) + return ret; + + return 0; +} + +int wl12xx_hw_init_beacon_broadcast(struct wl12xx *wl) +{ + int ret; + + ret = wl12xx_acx_bcn_dtim_options(wl); + if (ret < 0) + return ret; + + return 0; +} + +int wl12xx_hw_init_power_auth(struct wl12xx *wl) +{ + return wl12xx_acx_sleep_auth(wl, WL12XX_PSM_CAM); +} diff --git a/drivers/net/wireless/wl12xx/init.h b/drivers/net/wireless/wl12xx/init.h new file mode 100644 index 0000000..c8b6cd0 --- /dev/null +++ b/drivers/net/wireless/wl12xx/init.h @@ -0,0 +1,40 @@ +/* + * This file is part of wl12xx + * + * Copyright (C) 2009 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef __WL12XX_INIT_H__ +#define __WL12XX_INIT_H__ + +#include "wl12xx.h" + +int wl12xx_hw_init_hwenc_config(struct wl12xx *wl); +int wl12xx_hw_init_templates_config(struct wl12xx *wl); +int wl12xx_hw_init_mem_config(struct wl12xx *wl); +int wl12xx_hw_init_rx_config(struct wl12xx *wl, u32 config, u32 filter); +int wl12xx_hw_init_phy_config(struct wl12xx *wl); +int wl12xx_hw_init_beacon_filter(struct wl12xx *wl); +int wl12xx_hw_init_pta(struct wl12xx *wl); +int wl12xx_hw_init_energy_detection(struct wl12xx *wl); +int wl12xx_hw_init_beacon_broadcast(struct wl12xx *wl); +int wl12xx_hw_init_power_auth(struct wl12xx *wl); + +#endif diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c new file mode 100644 index 0000000..744f4ce --- /dev/null +++ b/drivers/net/wireless/wl12xx/main.c @@ -0,0 +1,1358 @@ +/* + * This file is part of wl12xx + * + * Copyright (C) 2008-2009 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include <linux/module.h> +#include <linux/interrupt.h> +#include <linux/firmware.h> +#include <linux/delay.h> +#include <linux/irq.h> +#include <linux/spi/spi.h> +#include <linux/crc32.h> +#include <linux/etherdevice.h> +#include <linux/spi/wl12xx.h> + +#include "wl12xx.h" +#include "wl12xx_80211.h" +#include "reg.h" +#include "wl1251.h" +#include "spi.h" +#include "event.h" +#include "tx.h" +#include "rx.h" +#include "ps.h" +#include "init.h" +#include "debugfs.h" + +static void wl12xx_disable_interrupts(struct wl12xx *wl) +{ + disable_irq(wl->irq); +} + +static void wl12xx_power_off(struct wl12xx *wl) +{ + wl->set_power(false); +} + +static void wl12xx_power_on(struct wl12xx *wl) +{ + wl->set_power(true); +} + +static irqreturn_t wl12xx_irq(int irq, void *cookie) +{ + struct wl12xx *wl; + + wl12xx_debug(DEBUG_IRQ, "IRQ"); + + wl = cookie; + + schedule_work(&wl->irq_work); + + return IRQ_HANDLED; +} + +static int wl12xx_fetch_firmware(struct wl12xx *wl) +{ + const struct firmware *fw; + int ret; + + ret = request_firmware(&fw, wl->chip.fw_filename, &wl->spi->dev); + + if (ret < 0) { + wl12xx_error("could not get firmware: %d", ret); + return ret; + } + + if (fw->size % 4) { + wl12xx_error("firmware size is not multiple of 32 bits: %d", + fw->size); + ret = -EILSEQ; + goto out; + } + + wl->fw_len = fw->size; + wl->fw = kmalloc(wl->fw_len, GFP_KERNEL); + + if (!wl->fw) { + wl12xx_error("could not allocate memory for the firmware"); + ret = -ENOMEM; + goto out; + } + + memcpy(wl->fw, fw->data, wl->fw_len); + + ret = 0; + +out: + release_firmware(fw); + + return ret; +} + +static int wl12xx_fetch_nvs(struct wl12xx *wl) +{ + const struct firmware *fw; + int ret; + + ret = request_firmware(&fw, wl->chip.nvs_filename, &wl->spi->dev); + + if (ret < 0) { + wl12xx_error("could not get nvs file: %d", ret); + return ret; + } + + if (fw->size % 4) { + wl12xx_error("nvs size is not multiple of 32 bits: %d", + fw->size); + ret = -EILSEQ; + goto out; + } + + wl->nvs_len = fw->size; + wl->nvs = kmalloc(wl->nvs_len, GFP_KERNEL); + + if (!wl->nvs) { + wl12xx_error("could not allocate memory for the nvs file"); + ret = -ENOMEM; + goto out; + } + + memcpy(wl->nvs, fw->data, wl->nvs_len); + + ret = 0; + +out: + release_firmware(fw); + + return ret; +} + +static void wl12xx_fw_wakeup(struct wl12xx *wl) +{ + u32 elp_reg; + + elp_reg = ELPCTRL_WAKE_UP; + wl12xx_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg); + elp_reg = wl12xx_read32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR); + + if (!(elp_reg & ELPCTRL_WLAN_READY)) { + wl12xx_warning("WLAN not ready"); + elp_reg = ELPCTRL_WAKE_UP_WLAN_READY; + wl12xx_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg); + } +} + +static int wl12xx_chip_wakeup(struct wl12xx *wl) +{ + int ret = 0; + + wl12xx_power_on(wl); + msleep(wl->chip.power_on_sleep); + wl12xx_spi_reset(wl); + wl12xx_spi_init(wl); + + /* We don't need a real memory partition here, because we only want + * to use the registers at this point. */ + wl12xx_set_partition(wl, + 0x00000000, + 0x00000000, + REGISTERS_BASE, + REGISTERS_DOWN_SIZE); + + /* ELP module wake up */ + wl12xx_fw_wakeup(wl); + + /* whal_FwCtrl_BootSm() */ + + /* 0. read chip id from CHIP_ID */ + wl->chip.id = wl12xx_reg_read32(wl, CHIP_ID_B); + + /* 1. check if chip id is valid */ + + switch (wl->chip.id) { + case CHIP_ID_1251_PG12: + wl12xx_debug(DEBUG_BOOT, "chip id 0x%x (1251 PG12)", + wl->chip.id); + + wl1251_setup(wl); + + break; + case CHIP_ID_1271_PG10: + case CHIP_ID_1251_PG10: + case CHIP_ID_1251_PG11: + default: + wl12xx_error("unsupported chip id: 0x%x", wl->chip.id); + ret = -ENODEV; + goto out; + } + + if (wl->fw == NULL) { + ret = wl12xx_fetch_firmware(wl); + if (ret < 0) + goto out; + } + + /* No NVS from netlink, try to get it from the filesystem */ + if (wl->nvs == NULL) { + ret = wl12xx_fetch_nvs(wl); + if (ret < 0) + goto out; + } + +out: + return ret; +} + +static void wl12xx_filter_work(struct work_struct *work) +{ + struct wl12xx *wl = + container_of(work, struct wl12xx, filter_work); + int ret; + + mutex_lock(&wl->mutex); + + if (wl->state == WL12XX_STATE_OFF) + goto out; + + ret = wl12xx_cmd_join(wl, wl->bss_type, 1, 100, 0); + if (ret < 0) + goto out; + +out: + mutex_unlock(&wl->mutex); +} + +int wl12xx_plt_start(struct wl12xx *wl) +{ + int ret; + + wl12xx_notice("power up"); + + if (wl->state != WL12XX_STATE_OFF) { + wl12xx_error("cannot go into PLT state because not " + "in off state: %d", wl->state); + return -EBUSY; + } + + wl->state = WL12XX_STATE_PLT; + + ret = wl12xx_chip_wakeup(wl); + if (ret < 0) + return ret; + + ret = wl->chip.op_boot(wl); + if (ret < 0) + return ret; + + wl12xx_notice("firmware booted in PLT mode (%s)", wl->chip.fw_ver); + + ret = wl->chip.op_plt_init(wl); + if (ret < 0) + return ret; + + return 0; +} + +int wl12xx_plt_stop(struct wl12xx *wl) +{ + wl12xx_notice("power down"); + + if (wl->state != WL12XX_STATE_PLT) { + wl12xx_error("cannot power down because not in PLT " + "state: %d", wl->state); + return -EBUSY; + } + + wl12xx_disable_interrupts(wl); + wl12xx_power_off(wl); + + wl->state = WL12XX_STATE_OFF; + + return 0; +} + + +static int wl12xx_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb) +{ + struct wl12xx *wl = hw->priv; + + skb_queue_tail(&wl->tx_queue, skb); + + schedule_work(&wl->tx_work); + + /* + * The workqueue is slow to process the tx_queue and we need stop + * the queue here, otherwise the queue will get too long. + */ + if (skb_queue_len(&wl->tx_queue) >= WL12XX_TX_QUEUE_MAX_LENGTH) { + ieee80211_stop_queues(wl->hw); + + /* + * FIXME: this is racy, the variable is not properly + * protected. Maybe fix this by removing the stupid + * variable altogether and checking the real queue state? + */ + wl->tx_queue_stopped = true; + } + + return NETDEV_TX_OK; +} + +static int wl12xx_op_start(struct ieee80211_hw *hw) +{ + struct wl12xx *wl = hw->priv; + int ret = 0; + + wl12xx_debug(DEBUG_MAC80211, "mac80211 start"); + + mutex_lock(&wl->mutex); + + if (wl->state != WL12XX_STATE_OFF) { + wl12xx_error("cannot start because not in off state: %d", + wl->state); + ret = -EBUSY; + goto out; + } + + ret = wl12xx_chip_wakeup(wl); + if (ret < 0) + return ret; + + ret = wl->chip.op_boot(wl); + if (ret < 0) + goto out; + + ret = wl->chip.op_hw_init(wl); + if (ret < 0) + goto out; + + ret = wl12xx_acx_station_id(wl); + if (ret < 0) + goto out; + + wl->state = WL12XX_STATE_ON; + + wl12xx_info("firmware booted (%s)", wl->chip.fw_ver); + +out: + if (ret < 0) + wl12xx_power_off(wl); + + mutex_unlock(&wl->mutex); + + return ret; +} + +static void wl12xx_op_stop(struct ieee80211_hw *hw) +{ + struct wl12xx *wl = hw->priv; + + wl12xx_info("down"); + + wl12xx_debug(DEBUG_MAC80211, "mac80211 stop"); + + mutex_lock(&wl->mutex); + + WARN_ON(wl->state != WL12XX_STATE_ON); + + if (wl->scanning) { + mutex_unlock(&wl->mutex); + ieee80211_scan_completed(wl->hw, true); + mutex_lock(&wl->mutex); + wl->scanning = false; + } + + wl->state = WL12XX_STATE_OFF; + + wl12xx_disable_interrupts(wl); + + mutex_unlock(&wl->mutex); + + cancel_work_sync(&wl->irq_work); + cancel_work_sync(&wl->tx_work); + cancel_work_sync(&wl->filter_work); + + mutex_lock(&wl->mutex); + + /* let's notify MAC80211 about the remaining pending TX frames */ + wl12xx_tx_flush(wl); + + wl12xx_power_off(wl); + + memset(wl->bssid, 0, ETH_ALEN); + wl->listen_int = 1; + wl->bss_type = MAX_BSS_TYPE; + + wl->data_in_count = 0; + wl->rx_counter = 0; + wl->rx_handled = 0; + wl->rx_current_buffer = 0; + wl->rx_last_id = 0; + wl->next_tx_complete = 0; + wl->elp = false; + wl->psm = 0; + wl->tx_queue_stopped = false; + wl->power_level = WL12XX_DEFAULT_POWER_LEVEL; + + wl12xx_debugfs_reset(wl); + + mutex_unlock(&wl->mutex); +} + +static int wl12xx_op_add_interface(struct ieee80211_hw *hw, + struct ieee80211_if_init_conf *conf) +{ + struct wl12xx *wl = hw->priv; + DECLARE_MAC_BUF(mac); + int ret = 0; + + wl12xx_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %s", + conf->type, print_mac(mac, conf->mac_addr)); + + mutex_lock(&wl->mutex); + + switch (conf->type) { + case NL80211_IFTYPE_STATION: + wl->bss_type = BSS_TYPE_STA_BSS; + break; + case NL80211_IFTYPE_ADHOC: + wl->bss_type = BSS_TYPE_IBSS; + break; + default: + ret = -EOPNOTSUPP; + goto out; + } + + if (memcmp(wl->mac_addr, conf->mac_addr, ETH_ALEN)) { + memcpy(wl->mac_addr, conf->mac_addr, ETH_ALEN); + SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr); + ret = wl12xx_acx_station_id(wl); + if (ret < 0) + goto out; + } + +out: + mutex_unlock(&wl->mutex); + return ret; +} + +static void wl12xx_op_remove_interface(struct ieee80211_hw *hw, + struct ieee80211_if_init_conf *conf) +{ + wl12xx_debug(DEBUG_MAC80211, "mac80211 remove interface"); +} + +static int wl12xx_build_null_data(struct wl12xx *wl) +{ + struct wl12xx_null_data_template template; + + if (!is_zero_ether_addr(wl->bssid)) { + memcpy(template.header.da, wl->bssid, ETH_ALEN); + memcpy(template.header.bssid, wl->bssid, ETH_ALEN); + } else { + memset(template.header.da, 0xff, ETH_ALEN); + memset(template.header.bssid, 0xff, ETH_ALEN); + } + + memcpy(template.header.sa, wl->mac_addr, ETH_ALEN); + template.header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_DATA | + IEEE80211_STYPE_NULLFUNC); + + return wl12xx_cmd_template_set(wl, CMD_NULL_DATA, &template, + sizeof(template)); + +} + +static int wl12xx_build_ps_poll(struct wl12xx *wl, u16 aid) +{ + struct wl12xx_ps_poll_template template; + + memcpy(template.bssid, wl->bssid, ETH_ALEN); + memcpy(template.ta, wl->mac_addr, ETH_ALEN); + template.aid = aid; + template.fc = cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL); + + return wl12xx_cmd_template_set(wl, CMD_PS_POLL, &template, + sizeof(template)); + +} + +static int wl12xx_op_config(struct ieee80211_hw *hw, u32 changed) +{ + struct wl12xx *wl = hw->priv; + struct ieee80211_conf *conf = &hw->conf; + int channel, ret = 0; + + channel = ieee80211_frequency_to_channel(conf->channel->center_freq); + + wl12xx_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d", + channel, + conf->flags & IEEE80211_CONF_PS ? "on" : "off", + conf->power_level); + + mutex_lock(&wl->mutex); + + if (channel != wl->channel) { + /* FIXME: use beacon interval provided by mac80211 */ + ret = wl12xx_cmd_join(wl, wl->bss_type, 1, 100, 0); + if (ret < 0) + goto out; + + wl->channel = channel; + } + + ret = wl12xx_build_null_data(wl); + if (ret < 0) + goto out; + + if (conf->flags & IEEE80211_CONF_PS && !wl->psm_requested) { + wl12xx_info("psm enabled"); + + wl->psm_requested = true; + + /* + * We enter PSM only if we're already associated. + * If we're not, we'll enter it when joining an SSID, + * through the bss_info_changed() hook. + */ + ret = wl12xx_ps_set_mode(wl, STATION_POWER_SAVE_MODE); + } else if (!(conf->flags & IEEE80211_CONF_PS) && + wl->psm_requested) { + wl12xx_info("psm disabled"); + + wl->psm_requested = false; + + if (wl->psm) + ret = wl12xx_ps_set_mode(wl, STATION_ACTIVE_MODE); + } + + if (conf->power_level != wl->power_level) { + ret = wl12xx_acx_tx_power(wl, conf->power_level); + if (ret < 0) + goto out; + + wl->power_level = conf->power_level; + } + +out: + mutex_unlock(&wl->mutex); + return ret; +} + +#define WL12XX_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \ + FIF_ALLMULTI | \ + FIF_FCSFAIL | \ + FIF_BCN_PRBRESP_PROMISC | \ + FIF_CONTROL | \ + FIF_OTHER_BSS) + +static void wl12xx_op_configure_filter(struct ieee80211_hw *hw, + unsigned int changed, + unsigned int *total, + int mc_count, + struct dev_addr_list *mc_list) +{ + struct wl12xx *wl = hw->priv; + + wl12xx_debug(DEBUG_MAC80211, "mac80211 configure filter"); + + *total &= WL12XX_SUPPORTED_FILTERS; + changed &= WL12XX_SUPPORTED_FILTERS; + + if (changed == 0) + /* no filters which we support changed */ + return; + + /* FIXME: wl->rx_config and wl->rx_filter are not protected */ + + wl->rx_config = WL12XX_DEFAULT_RX_CONFIG; + wl->rx_filter = WL12XX_DEFAULT_RX_FILTER; + + if (*total & FIF_PROMISC_IN_BSS) { + wl->rx_config |= CFG_BSSID_FILTER_EN; + wl->rx_config |= CFG_RX_ALL_GOOD; + } + if (*total & FIF_ALLMULTI) + /* + * CFG_MC_FILTER_EN in rx_config needs to be 0 to receive + * all multicast frames + */ + wl->rx_config &= ~CFG_MC_FILTER_EN; + if (*total & FIF_FCSFAIL) + wl->rx_filter |= CFG_RX_FCS_ERROR; + if (*total & FIF_BCN_PRBRESP_PROMISC) { + wl->rx_config &= ~CFG_BSSID_FILTER_EN; + wl->rx_config &= ~CFG_SSID_FILTER_EN; + } + if (*total & FIF_CONTROL) + wl->rx_filter |= CFG_RX_CTL_EN; + if (*total & FIF_OTHER_BSS) + wl->rx_filter &= ~CFG_BSSID_FILTER_EN; + + /* + * FIXME: workqueues need to be properly cancelled on stop(), for + * now let's just disable changing the filter settings. They will + * be updated any on config(). + */ + /* schedule_work(&wl->filter_work); */ +} + +/* HW encryption */ +static int wl12xx_set_key_type(struct wl12xx *wl, struct acx_set_key *key, + enum set_key_cmd cmd, + struct ieee80211_key_conf *mac80211_key, + const u8 *addr) +{ + switch (mac80211_key->alg) { + case ALG_WEP: + if (is_broadcast_ether_addr(addr)) + key->key_type = KEY_WEP_DEFAULT; + else + key->key_type = KEY_WEP_ADDR; + + mac80211_key->hw_key_idx = mac80211_key->keyidx; + break; + case ALG_TKIP: + if (is_broadcast_ether_addr(addr)) + key->key_type = KEY_TKIP_MIC_GROUP; + else + key->key_type = KEY_TKIP_MIC_PAIRWISE; + + mac80211_key->hw_key_idx = mac80211_key->keyidx; + break; + case ALG_CCMP: + if (is_broadcast_ether_addr(addr)) + key->key_type = KEY_AES_GROUP; + else + key->key_type = KEY_AES_PAIRWISE; + mac80211_key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; + break; + default: + wl12xx_error("Unknown key algo 0x%x", mac80211_key->alg); + return -EOPNOTSUPP; + } + + return 0; +} + +static int wl12xx_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, + struct ieee80211_key_conf *key) +{ + struct wl12xx *wl = hw->priv; + struct acx_set_key wl_key; + const u8 *addr; + int ret; + + static const u8 bcast_addr[ETH_ALEN] = + { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; + + wl12xx_debug(DEBUG_MAC80211, "mac80211 set key"); + + memset(&wl_key, 0, sizeof(wl_key)); + + addr = sta ? sta->addr : bcast_addr; + + wl12xx_debug(DEBUG_CRYPT, "CMD: 0x%x", cmd); + wl12xx_dump(DEBUG_CRYPT, "ADDR: ", addr, ETH_ALEN); + wl12xx_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x", + key->alg, key->keyidx, key->keylen, key->flags); + wl12xx_dump(DEBUG_CRYPT, "KEY: ", key->key, key->keylen); + + mutex_lock(&wl->mutex); + + switch (cmd) { + case SET_KEY: + wl_key.key_action = KEY_ADD_OR_REPLACE; + break; + case DISABLE_KEY: + wl_key.key_action = KEY_REMOVE; + break; + default: + wl12xx_error("Unsupported key cmd 0x%x", cmd); + break; + } + + ret = wl12xx_set_key_type(wl, &wl_key, cmd, key, addr); + if (ret < 0) { + wl12xx_error("Set KEY type failed"); + goto out; + } + + if (wl_key.key_type != KEY_WEP_DEFAULT) + memcpy(wl_key.addr, addr, ETH_ALEN); + + if ((wl_key.key_type == KEY_TKIP_MIC_GROUP) || + (wl_key.key_type == KEY_TKIP_MIC_PAIRWISE)) { + /* + * We get the key in the following form: + * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) + * but the target is expecting: + * TKIP - RX MIC - TX MIC + */ + memcpy(wl_key.key, key->key, 16); + memcpy(wl_key.key + 16, key->key + 24, 8); + memcpy(wl_key.key + 24, key->key + 16, 8); + + } else { + memcpy(wl_key.key, key->key, key->keylen); + } + wl_key.key_size = key->keylen; + + wl_key.id = key->keyidx; + wl_key.ssid_profile = 0; + + wl12xx_dump(DEBUG_CRYPT, "TARGET KEY: ", &wl_key, sizeof(wl_key)); + + if (wl12xx_cmd_send(wl, CMD_SET_KEYS, &wl_key, sizeof(wl_key)) < 0) { + wl12xx_error("Set KEY failed"); + ret = -EOPNOTSUPP; + goto out; + } + +out: + mutex_unlock(&wl->mutex); + return ret; +} + +static int wl12xx_build_basic_rates(char *rates) +{ + u8 index = 0; + + rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB; + rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB; + rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB; + rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB; + + return index; +} + +static int wl12xx_build_extended_rates(char *rates) +{ + u8 index = 0; + + rates[index++] = IEEE80211_OFDM_RATE_6MB; + rates[index++] = IEEE80211_OFDM_RATE_9MB; + rates[index++] = IEEE80211_OFDM_RATE_12MB; + rates[index++] = IEEE80211_OFDM_RATE_18MB; + rates[index++] = IEEE80211_OFDM_RATE_24MB; + rates[index++] = IEEE80211_OFDM_RATE_36MB; + rates[index++] = IEEE80211_OFDM_RATE_48MB; + rates[index++] = IEEE80211_OFDM_RATE_54MB; + + return index; +} + + +static int wl12xx_build_probe_req(struct wl12xx *wl, u8 *ssid, size_t ssid_len) +{ + struct wl12xx_probe_req_template template; + struct wl12xx_ie_rates *rates; + char *ptr; + u16 size; + + ptr = (char *)&template; + size = sizeof(struct ieee80211_header); + + memset(template.header.da, 0xff, ETH_ALEN); + memset(template.header.bssid, 0xff, ETH_ALEN); + memcpy(template.header.sa, wl->mac_addr, ETH_ALEN); + template.header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ); + + /* IEs */ + /* SSID */ + template.ssid.header.id = WLAN_EID_SSID; + template.ssid.header.len = ssid_len; + if (ssid_len && ssid) + memcpy(template.ssid.ssid, ssid, ssid_len); + size += sizeof(struct wl12xx_ie_header) + ssid_len; + ptr += size; + + /* Basic Rates */ + rates = (struct wl12xx_ie_rates *)ptr; + rates->header.id = WLAN_EID_SUPP_RATES; + rates->header.len = wl12xx_build_basic_rates(rates->rates); + size += sizeof(struct wl12xx_ie_header) + rates->header.len; + ptr += sizeof(struct wl12xx_ie_header) + rates->header.len; + + /* Extended rates */ + rates = (struct wl12xx_ie_rates *)ptr; + rates->header.id = WLAN_EID_EXT_SUPP_RATES; + rates->header.len = wl12xx_build_extended_rates(rates->rates); + size += sizeof(struct wl12xx_ie_header) + rates->header.len; + + wl12xx_dump(DEBUG_SCAN, "PROBE REQ: ", &template, size); + + return wl12xx_cmd_template_set(wl, CMD_PROBE_REQ, &template, + size); +} + +static int wl12xx_hw_scan(struct wl12xx *wl, u8 *ssid, size_t len, + u8 active_scan, u8 high_prio, u8 num_channels, + u8 probe_requests) +{ + int i, ret; + u32 split_scan = 0; + u16 scan_options = 0; + struct cmd_scan *params; + struct wl12xx_command *cmd_answer; + + if (wl->scanning) + return -EINVAL; + + params = kzalloc(sizeof(*params), GFP_KERNEL); + if (!params) + return -ENOMEM; + + params->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD); + params->params.rx_filter_options = + cpu_to_le32(CFG_RX_PRSP_EN | CFG_RX_MGMT_EN | CFG_RX_BCN_EN); + + /* High priority scan */ + if (!active_scan) + scan_options |= SCAN_PASSIVE; + if (high_prio) + scan_options |= SCAN_PRIORITY_HIGH; + params->params.scan_options = scan_options; + + params->params.num_channels = num_channels; + params->params.num_probe_requests = probe_requests; + params->params.tx_rate = cpu_to_le16(1 << 1); /* 2 Mbps */ + params->params.tid_trigger = 0; + + for (i = 0; i < num_channels; i++) { + params->channels[i].min_duration = cpu_to_le32(30000); + params->channels[i].max_duration = cpu_to_le32(60000); + memset(¶ms->channels[i].bssid_lsb, 0xff, 4); + memset(¶ms->channels[i].bssid_msb, 0xff, 2); + params->channels[i].early_termination = 0; + params->channels[i].tx_power_att = 0; + params->channels[i].channel = i + 1; + memset(params->channels[i].pad, 0, 3); + } + + for (i = num_channels; i < SCAN_MAX_NUM_OF_CHANNELS; i++) + memset(¶ms->channels[i], 0, + sizeof(struct basic_scan_channel_parameters)); + + if (len && ssid) { + params->params.ssid_len = len; + memcpy(params->params.ssid, ssid, len); + } else { + params->params.ssid_len = 0; + memset(params->params.ssid, 0, 32); + } + + ret = wl12xx_build_probe_req(wl, ssid, len); + if (ret < 0) { + wl12xx_error("PROBE request template failed"); + goto out; + } + + ret = wl12xx_cmd_send(wl, CMD_TRIGGER_SCAN_TO, &split_scan, + sizeof(u32)); + if (ret < 0) { + wl12xx_error("Split SCAN failed"); + goto out; + } + + wl12xx_dump(DEBUG_SCAN, "SCAN: ", params, sizeof(*params)); + + wl->scanning = true; + + ret = wl12xx_cmd_send(wl, CMD_SCAN, params, sizeof(*params)); + if (ret < 0) + wl12xx_error("SCAN failed"); + + wl12xx_spi_mem_read(wl, wl->cmd_box_addr, params, sizeof(*params)); + + cmd_answer = (struct wl12xx_command *) params; + if (cmd_answer->status != CMD_STATUS_SUCCESS) { + wl12xx_error("TEST command answer error: %d", + cmd_answer->status); + wl->scanning = false; + ret = -EIO; + goto out; + } + +out: + kfree(params); + return ret; + +} + +static int wl12xx_op_hw_scan(struct ieee80211_hw *hw, + struct cfg80211_scan_request *req) +{ + struct wl12xx *wl = hw->priv; + int ret; + u8 *ssid = NULL; + size_t ssid_len = 0; + + wl12xx_debug(DEBUG_MAC80211, "mac80211 hw scan"); + + if (req->n_ssids) { + ssid = req->ssids[0].ssid; + ssid_len = req->ssids[0].ssid_len; + } + + mutex_lock(&wl->mutex); + ret = wl12xx_hw_scan(hw->priv, ssid, ssid_len, 1, 0, 13, 3); + mutex_unlock(&wl->mutex); + + return ret; +} + +static int wl12xx_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value) +{ + struct wl12xx *wl = hw->priv; + int ret; + + ret = wl12xx_acx_rts_threshold(wl, (u16) value); + + if (ret < 0) + wl12xx_warning("wl12xx_op_set_rts_threshold failed: %d", ret); + + return ret; +} + +static void wl12xx_op_bss_info_changed(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *bss_conf, + u32 changed) +{ + enum acx_ps_mode mode; + struct wl12xx *wl = hw->priv; + struct sk_buff *beacon; + int ret; + + wl12xx_debug(DEBUG_MAC80211, "mac80211 bss info changed"); + + mutex_lock(&wl->mutex); + + if (changed & BSS_CHANGED_ASSOC) { + if (bss_conf->assoc) { + wl->aid = bss_conf->aid; + + ret = wl12xx_build_ps_poll(wl, wl->aid); + if (ret < 0) + goto out; + + ret = wl12xx_acx_aid(wl, wl->aid); + if (ret < 0) + goto out; + + /* If we want to go in PSM but we're not there yet */ + if (wl->psm_requested && !wl->psm) { + mode = STATION_POWER_SAVE_MODE; + ret = wl12xx_ps_set_mode(wl, mode); + if (ret < 0) + goto out; + } + } + } + if (changed & BSS_CHANGED_ERP_SLOT) { + if (bss_conf->use_short_slot) + ret = wl12xx_acx_slot(wl, SLOT_TIME_SHORT); + else + ret = wl12xx_acx_slot(wl, SLOT_TIME_LONG); + if (ret < 0) { + wl12xx_warning("Set slot time failed %d", ret); + goto out; + } + } + + if (changed & BSS_CHANGED_ERP_PREAMBLE) { + if (bss_conf->use_short_preamble) + wl12xx_acx_set_preamble(wl, ACX_PREAMBLE_SHORT); + else + wl12xx_acx_set_preamble(wl, ACX_PREAMBLE_LONG); + } + + if (changed & BSS_CHANGED_ERP_CTS_PROT) { + if (bss_conf->use_cts_prot) + ret = wl12xx_acx_cts_protect(wl, CTSPROTECT_ENABLE); + else + ret = wl12xx_acx_cts_protect(wl, CTSPROTECT_DISABLE); + if (ret < 0) { + wl12xx_warning("Set ctsprotect failed %d", ret); + goto out; + } + } + + if (changed & BSS_CHANGED_BSSID) { + memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN); + + ret = wl12xx_build_null_data(wl); + if (ret < 0) + goto out; + + if (wl->bss_type != BSS_TYPE_IBSS) { + ret = wl12xx_cmd_join(wl, wl->bss_type, 5, 100, 1); + if (ret < 0) + goto out; + } + } + + if (changed & BSS_CHANGED_BEACON) { + beacon = ieee80211_beacon_get(hw, vif); + ret = wl12xx_cmd_template_set(wl, CMD_BEACON, beacon->data, + beacon->len); + + if (ret < 0) { + dev_kfree_skb(beacon); + goto out; + } + + ret = wl12xx_cmd_template_set(wl, CMD_PROBE_RESP, beacon->data, + beacon->len); + + dev_kfree_skb(beacon); + + if (ret < 0) + goto out; + + ret = wl12xx_cmd_join(wl, wl->bss_type, 1, 100, 0); + + if (ret < 0) + goto out; + } + +out: + mutex_unlock(&wl->mutex); +} + + +/* can't be const, mac80211 writes to this */ +static struct ieee80211_rate wl12xx_rates[] = { + { .bitrate = 10, + .hw_value = 0x1, + .hw_value_short = 0x1, }, + { .bitrate = 20, + .hw_value = 0x2, + .hw_value_short = 0x2, + .flags = IEEE80211_RATE_SHORT_PREAMBLE }, + { .bitrate = 55, + .hw_value = 0x4, + .hw_value_short = 0x4, + .flags = IEEE80211_RATE_SHORT_PREAMBLE }, + { .bitrate = 110, + .hw_value = 0x20, + .hw_value_short = 0x20, + .flags = IEEE80211_RATE_SHORT_PREAMBLE }, + { .bitrate = 60, + .hw_value = 0x8, + .hw_value_short = 0x8, }, + { .bitrate = 90, + .hw_value = 0x10, + .hw_value_short = 0x10, }, + { .bitrate = 120, + .hw_value = 0x40, + .hw_value_short = 0x40, }, + { .bitrate = 180, + .hw_value = 0x80, + .hw_value_short = 0x80, }, + { .bitrate = 240, + .hw_value = 0x200, + .hw_value_short = 0x200, }, + { .bitrate = 360, + .hw_value = 0x400, + .hw_value_short = 0x400, }, + { .bitrate = 480, + .hw_value = 0x800, + .hw_value_short = 0x800, }, + { .bitrate = 540, + .hw_value = 0x1000, + .hw_value_short = 0x1000, }, +}; + +/* can't be const, mac80211 writes to this */ +static struct ieee80211_channel wl12xx_channels[] = { + { .hw_value = 1, .center_freq = 2412}, + { .hw_value = 2, .center_freq = 2417}, + { .hw_value = 3, .center_freq = 2422}, + { .hw_value = 4, .center_freq = 2427}, + { .hw_value = 5, .center_freq = 2432}, + { .hw_value = 6, .center_freq = 2437}, + { .hw_value = 7, .center_freq = 2442}, + { .hw_value = 8, .center_freq = 2447}, + { .hw_value = 9, .center_freq = 2452}, + { .hw_value = 10, .center_freq = 2457}, + { .hw_value = 11, .center_freq = 2462}, + { .hw_value = 12, .center_freq = 2467}, + { .hw_value = 13, .center_freq = 2472}, +}; + +/* can't be const, mac80211 writes to this */ +static struct ieee80211_supported_band wl12xx_band_2ghz = { + .channels = wl12xx_channels, + .n_channels = ARRAY_SIZE(wl12xx_channels), + .bitrates = wl12xx_rates, + .n_bitrates = ARRAY_SIZE(wl12xx_rates), +}; + +static const struct ieee80211_ops wl12xx_ops = { + .start = wl12xx_op_start, + .stop = wl12xx_op_stop, + .add_interface = wl12xx_op_add_interface, + .remove_interface = wl12xx_op_remove_interface, + .config = wl12xx_op_config, + .configure_filter = wl12xx_op_configure_filter, + .tx = wl12xx_op_tx, + .set_key = wl12xx_op_set_key, + .hw_scan = wl12xx_op_hw_scan, + .bss_info_changed = wl12xx_op_bss_info_changed, + .set_rts_threshold = wl12xx_op_set_rts_threshold, +}; + +static int wl12xx_register_hw(struct wl12xx *wl) +{ + int ret; + + if (wl->mac80211_registered) + return 0; + + SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr); + + ret = ieee80211_register_hw(wl->hw); + if (ret < 0) { + wl12xx_error("unable to register mac80211 hw: %d", ret); + return ret; + } + + wl->mac80211_registered = true; + + wl12xx_notice("loaded"); + + return 0; +} + +static int wl12xx_init_ieee80211(struct wl12xx *wl) +{ + /* The tx descriptor buffer and the TKIP space */ + wl->hw->extra_tx_headroom = sizeof(struct tx_double_buffer_desc) + + WL12XX_TKIP_IV_SPACE; + + /* unit us */ + /* FIXME: find a proper value */ + wl->hw->channel_change_time = 10000; + + wl->hw->flags = IEEE80211_HW_SIGNAL_DBM | + IEEE80211_HW_NOISE_DBM; + + wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); + wl->hw->wiphy->max_scan_ssids = 1; + wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl12xx_band_2ghz; + + SET_IEEE80211_DEV(wl->hw, &wl->spi->dev); + + return 0; +} + +#define WL12XX_DEFAULT_CHANNEL 1 +static int __devinit wl12xx_probe(struct spi_device *spi) +{ + struct wl12xx_platform_data *pdata; + struct ieee80211_hw *hw; + struct wl12xx *wl; + int ret, i; + static const u8 nokia_oui[3] = {0x00, 0x1f, 0xdf}; + + pdata = spi->dev.platform_data; + if (!pdata) { + wl12xx_error("no platform data"); + return -ENODEV; + } + + hw = ieee80211_alloc_hw(sizeof(*wl), &wl12xx_ops); + if (!hw) { + wl12xx_error("could not alloc ieee80211_hw"); + return -ENOMEM; + } + + wl = hw->priv; + memset(wl, 0, sizeof(*wl)); + + wl->hw = hw; + dev_set_drvdata(&spi->dev, wl); + wl->spi = spi; + + wl->data_in_count = 0; + + skb_queue_head_init(&wl->tx_queue); + + INIT_WORK(&wl->tx_work, wl12xx_tx_work); + INIT_WORK(&wl->filter_work, wl12xx_filter_work); + wl->channel = WL12XX_DEFAULT_CHANNEL; + wl->scanning = false; + wl->default_key = 0; + wl->listen_int = 1; + wl->rx_counter = 0; + wl->rx_handled = 0; + wl->rx_current_buffer = 0; + wl->rx_last_id = 0; + wl->rx_config = WL12XX_DEFAULT_RX_CONFIG; + wl->rx_filter = WL12XX_DEFAULT_RX_FILTER; + wl->elp = false; + wl->psm = 0; + wl->psm_requested = false; + wl->tx_queue_stopped = false; + wl->power_level = WL12XX_DEFAULT_POWER_LEVEL; + + /* We use the default power on sleep time until we know which chip + * we're using */ + wl->chip.power_on_sleep = WL12XX_DEFAULT_POWER_ON_SLEEP; + + for (i = 0; i < FW_TX_CMPLT_BLOCK_SIZE; i++) + wl->tx_frames[i] = NULL; + + wl->next_tx_complete = 0; + + /* + * In case our MAC address is not correctly set, + * we use a random but Nokia MAC. + */ + memcpy(wl->mac_addr, nokia_oui, 3); + get_random_bytes(wl->mac_addr + 3, 3); + + wl->state = WL12XX_STATE_OFF; + mutex_init(&wl->mutex); + + wl->tx_mgmt_frm_rate = DEFAULT_HW_GEN_TX_RATE; + wl->tx_mgmt_frm_mod = DEFAULT_HW_GEN_MODULATION_TYPE; + + /* This is the only SPI value that we need to set here, the rest + * comes from the board-peripherals file */ + spi->bits_per_word = 32; + + ret = spi_setup(spi); + if (ret < 0) { + wl12xx_error("spi_setup failed"); + goto out_free; + } + + wl->set_power = pdata->set_power; + if (!wl->set_power) { + wl12xx_error("set power function missing in platform data"); + return -ENODEV; + } + + wl->irq = spi->irq; + if (wl->irq < 0) { + wl12xx_error("irq missing in platform data"); + return -ENODEV; + } + + ret = request_irq(wl->irq, wl12xx_irq, 0, DRIVER_NAME, wl); + if (ret < 0) { + wl12xx_error("request_irq() failed: %d", ret); + goto out_free; + } + + set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING); + + disable_irq(wl->irq); + + ret = wl12xx_init_ieee80211(wl); + if (ret) + goto out_irq; + + ret = wl12xx_register_hw(wl); + if (ret) + goto out_irq; + + wl12xx_debugfs_init(wl); + + wl12xx_notice("initialized"); + + return 0; + + out_irq: + free_irq(wl->irq, wl); + + out_free: + ieee80211_free_hw(hw); + + return ret; +} + +static int __devexit wl12xx_remove(struct spi_device *spi) +{ + struct wl12xx *wl = dev_get_drvdata(&spi->dev); + + ieee80211_unregister_hw(wl->hw); + + wl12xx_debugfs_exit(wl); + + free_irq(wl->irq, wl); + kfree(wl->target_mem_map); + kfree(wl->data_path); + kfree(wl->fw); + wl->fw = NULL; + kfree(wl->nvs); + wl->nvs = NULL; + ieee80211_free_hw(wl->hw); + + return 0; +} + + +static struct spi_driver wl12xx_spi_driver = { + .driver = { + .name = "wl12xx", + .bus = &spi_bus_type, + .owner = THIS_MODULE, + }, + + .probe = wl12xx_probe, + .remove = __devexit_p(wl12xx_remove), +}; + +static int __init wl12xx_init(void) +{ + int ret; + + ret = spi_register_driver(&wl12xx_spi_driver); + if (ret < 0) { + wl12xx_error("failed to register spi driver: %d", ret); + goto out; + } + +out: + return ret; +} + +static void __exit wl12xx_exit(void) +{ + spi_unregister_driver(&wl12xx_spi_driver); + + wl12xx_notice("unloaded"); +} + +module_init(wl12xx_init); +module_exit(wl12xx_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Kalle Valo <Kalle.Valo@nokia.com>, " + "Luciano Coelho <luciano.coelho@nokia.com>"); diff --git a/drivers/net/wireless/wl12xx/ps.c b/drivers/net/wireless/wl12xx/ps.c new file mode 100644 index 0000000..83a1011 --- /dev/null +++ b/drivers/net/wireless/wl12xx/ps.c @@ -0,0 +1,151 @@ +/* + * This file is part of wl12xx + * + * Copyright (C) 2008 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include "reg.h" +#include "ps.h" +#include "spi.h" + +#define WL12XX_WAKEUP_TIMEOUT 2000 + +/* Routines to toggle sleep mode while in ELP */ +void wl12xx_ps_elp_sleep(struct wl12xx *wl) +{ + if (wl->elp || !wl->psm) + return; + + wl12xx_debug(DEBUG_PSM, "chip to elp"); + + wl12xx_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, ELPCTRL_SLEEP); + + wl->elp = true; +} + +int wl12xx_ps_elp_wakeup(struct wl12xx *wl) +{ + unsigned long timeout; + u32 elp_reg; + + if (!wl->elp) + return 0; + + wl12xx_debug(DEBUG_PSM, "waking up chip from elp"); + + timeout = jiffies + msecs_to_jiffies(WL12XX_WAKEUP_TIMEOUT); + + wl12xx_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, ELPCTRL_WAKE_UP); + + elp_reg = wl12xx_read32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR); + + /* + * FIXME: we should wait for irq from chip but, as a temporary + * solution to simplify locking, let's poll instead + */ + while (!(elp_reg & ELPCTRL_WLAN_READY)) { + if (time_after(jiffies, timeout)) { + wl12xx_error("elp wakeup timeout"); + return -ETIMEDOUT; + } + msleep(1); + elp_reg = wl12xx_read32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR); + } + + wl12xx_debug(DEBUG_PSM, "wakeup time: %u ms", + jiffies_to_msecs(jiffies) - + (jiffies_to_msecs(timeout) - WL12XX_WAKEUP_TIMEOUT)); + + wl->elp = false; + + return 0; +} + +static int wl12xx_ps_set_elp(struct wl12xx *wl, bool enable) +{ + int ret; + + if (enable) { + wl12xx_debug(DEBUG_PSM, "sleep auth psm/elp"); + + /* + * FIXME: we should PSM_ELP, but because of firmware wakeup + * problems let's use only PSM_PS + */ + ret = wl12xx_acx_sleep_auth(wl, WL12XX_PSM_PS); + if (ret < 0) + return ret; + + wl12xx_ps_elp_sleep(wl); + } else { + wl12xx_debug(DEBUG_PSM, "sleep auth cam"); + + /* + * When the target is in ELP, we can only + * access the ELP control register. Thus, + * we have to wake the target up before + * changing the power authorization. + */ + + wl12xx_ps_elp_wakeup(wl); + + ret = wl12xx_acx_sleep_auth(wl, WL12XX_PSM_CAM); + if (ret < 0) + return ret; + } + + return 0; +} + +int wl12xx_ps_set_mode(struct wl12xx *wl, enum acx_ps_mode mode) +{ + int ret; + + switch (mode) { + case STATION_POWER_SAVE_MODE: + wl12xx_debug(DEBUG_PSM, "entering psm"); + ret = wl12xx_cmd_ps_mode(wl, STATION_POWER_SAVE_MODE); + if (ret < 0) + return ret; + + ret = wl12xx_ps_set_elp(wl, true); + if (ret < 0) + return ret; + + wl->psm = 1; + break; + case STATION_ACTIVE_MODE: + default: + wl12xx_debug(DEBUG_PSM, "leaving psm"); + ret = wl12xx_ps_set_elp(wl, false); + if (ret < 0) + return ret; + + ret = wl12xx_cmd_ps_mode(wl, STATION_ACTIVE_MODE); + if (ret < 0) + return ret; + + wl->psm = 0; + break; + } + + return ret; +} + diff --git a/drivers/net/wireless/wl12xx/ps.h b/drivers/net/wireless/wl12xx/ps.h new file mode 100644 index 0000000..5d7c525 --- /dev/null +++ b/drivers/net/wireless/wl12xx/ps.h @@ -0,0 +1,36 @@ +#ifndef __WL12XX_PS_H__ +#define __WL12XX_PS_H__ + +/* + * This file is part of wl12xx + * + * Copyright (c) 1998-2007 Texas Instruments Incorporated + * Copyright (C) 2008 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include "wl12xx.h" +#include "acx.h" + +int wl12xx_ps_set_mode(struct wl12xx *wl, enum acx_ps_mode mode); +void wl12xx_ps_elp_sleep(struct wl12xx *wl); +int wl12xx_ps_elp_wakeup(struct wl12xx *wl); + + +#endif /* __WL12XX_PS_H__ */ diff --git a/drivers/net/wireless/wl12xx/reg.h b/drivers/net/wireless/wl12xx/reg.h new file mode 100644 index 0000000..e421643 --- /dev/null +++ b/drivers/net/wireless/wl12xx/reg.h @@ -0,0 +1,745 @@ +/* + * This file is part of wl12xx + * + * Copyright (c) 1998-2007 Texas Instruments Incorporated + * Copyright (C) 2008 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef __REG_H__ +#define __REG_H__ + +#include <linux/bitops.h> +#include "wl12xx.h" + +#define REGISTERS_BASE 0x00300000 +#define DRPW_BASE 0x00310000 + +#define REGISTERS_DOWN_SIZE 0x00008800 +#define REGISTERS_WORK_SIZE 0x0000b000 + +#define HW_ACCESS_ELP_CTRL_REG_ADDR 0x1FFFC + +/* ELP register commands */ +#define ELPCTRL_WAKE_UP 0x1 +#define ELPCTRL_WAKE_UP_WLAN_READY 0x5 +#define ELPCTRL_SLEEP 0x0 +/* ELP WLAN_READY bit */ +#define ELPCTRL_WLAN_READY 0x2 + +/* + * Interrupt registers. + * 64 bit interrupt sources registers ws ced. + * sme interupts were removed and new ones were added. + * Order was changed. + */ +#define FIQ_MASK (REGISTERS_BASE + 0x0400) +#define FIQ_MASK_L (REGISTERS_BASE + 0x0400) +#define FIQ_MASK_H (REGISTERS_BASE + 0x0404) +#define FIQ_MASK_SET (REGISTERS_BASE + 0x0408) +#define FIQ_MASK_SET_L (REGISTERS_BASE + 0x0408) +#define FIQ_MASK_SET_H (REGISTERS_BASE + 0x040C) +#define FIQ_MASK_CLR (REGISTERS_BASE + 0x0410) +#define FIQ_MASK_CLR_L (REGISTERS_BASE + 0x0410) +#define FIQ_MASK_CLR_H (REGISTERS_BASE + 0x0414) +#define IRQ_MASK (REGISTERS_BASE + 0x0418) +#define IRQ_MASK_L (REGISTERS_BASE + 0x0418) +#define IRQ_MASK_H (REGISTERS_BASE + 0x041C) +#define IRQ_MASK_SET (REGISTERS_BASE + 0x0420) +#define IRQ_MASK_SET_L (REGISTERS_BASE + 0x0420) +#define IRQ_MASK_SET_H (REGISTERS_BASE + 0x0424) +#define IRQ_MASK_CLR (REGISTERS_BASE + 0x0428) +#define IRQ_MASK_CLR_L (REGISTERS_BASE + 0x0428) +#define IRQ_MASK_CLR_H (REGISTERS_BASE + 0x042C) +#define ECPU_MASK (REGISTERS_BASE + 0x0448) +#define FIQ_STS_L (REGISTERS_BASE + 0x044C) +#define FIQ_STS_H (REGISTERS_BASE + 0x0450) +#define IRQ_STS_L (REGISTERS_BASE + 0x0454) +#define IRQ_STS_H (REGISTERS_BASE + 0x0458) +#define INT_STS_ND (REGISTERS_BASE + 0x0464) +#define INT_STS_RAW_L (REGISTERS_BASE + 0x0464) +#define INT_STS_RAW_H (REGISTERS_BASE + 0x0468) +#define INT_STS_CLR (REGISTERS_BASE + 0x04B4) +#define INT_STS_CLR_L (REGISTERS_BASE + 0x04B4) +#define INT_STS_CLR_H (REGISTERS_BASE + 0x04B8) +#define INT_ACK (REGISTERS_BASE + 0x046C) +#define INT_ACK_L (REGISTERS_BASE + 0x046C) +#define INT_ACK_H (REGISTERS_BASE + 0x0470) +#define INT_TRIG (REGISTERS_BASE + 0x0474) +#define INT_TRIG_L (REGISTERS_BASE + 0x0474) +#define INT_TRIG_H (REGISTERS_BASE + 0x0478) +#define HOST_STS_L (REGISTERS_BASE + 0x045C) +#define HOST_STS_H (REGISTERS_BASE + 0x0460) +#define HOST_MASK (REGISTERS_BASE + 0x0430) +#define HOST_MASK_L (REGISTERS_BASE + 0x0430) +#define HOST_MASK_H (REGISTERS_BASE + 0x0434) +#define HOST_MASK_SET (REGISTERS_BASE + 0x0438) +#define HOST_MASK_SET_L (REGISTERS_BASE + 0x0438) +#define HOST_MASK_SET_H (REGISTERS_BASE + 0x043C) +#define HOST_MASK_CLR (REGISTERS_BASE + 0x0440) +#define HOST_MASK_CLR_L (REGISTERS_BASE + 0x0440) +#define HOST_MASK_CLR_H (REGISTERS_BASE + 0x0444) + +/* Host Interrupts*/ +#define HINT_MASK (REGISTERS_BASE + 0x0494) +#define HINT_MASK_SET (REGISTERS_BASE + 0x0498) +#define HINT_MASK_CLR (REGISTERS_BASE + 0x049C) +#define HINT_STS_ND_MASKED (REGISTERS_BASE + 0x04A0) +/*1150 spec calls this HINT_STS_RAW*/ +#define HINT_STS_ND (REGISTERS_BASE + 0x04B0) +#define HINT_STS_CLR (REGISTERS_BASE + 0x04A4) +#define HINT_ACK (REGISTERS_BASE + 0x04A8) +#define HINT_TRIG (REGISTERS_BASE + 0x04AC) + +/* Device Configuration registers*/ +#define SOR_CFG (REGISTERS_BASE + 0x0800) +#define ECPU_CTRL (REGISTERS_BASE + 0x0804) +#define HI_CFG (REGISTERS_BASE + 0x0808) +#define EE_START (REGISTERS_BASE + 0x080C) + +#define CHIP_ID_B (REGISTERS_BASE + 0x5674) + +#define CHIP_ID_1251_PG10 (0x7010101) +#define CHIP_ID_1251_PG11 (0x7020101) +#define CHIP_ID_1251_PG12 (0x7030101) + +#define ENABLE (REGISTERS_BASE + 0x5450) + +/* Power Management registers */ +#define ELP_CFG_MODE (REGISTERS_BASE + 0x5804) +#define ELP_CMD (REGISTERS_BASE + 0x5808) +#define PLL_CAL_TIME (REGISTERS_BASE + 0x5810) +#define CLK_REQ_TIME (REGISTERS_BASE + 0x5814) +#define CLK_BUF_TIME (REGISTERS_BASE + 0x5818) + +#define CFG_PLL_SYNC_CNT (REGISTERS_BASE + 0x5820) + +/* Scratch Pad registers*/ +#define SCR_PAD0 (REGISTERS_BASE + 0x5608) +#define SCR_PAD1 (REGISTERS_BASE + 0x560C) +#define SCR_PAD2 (REGISTERS_BASE + 0x5610) +#define SCR_PAD3 (REGISTERS_BASE + 0x5614) +#define SCR_PAD4 (REGISTERS_BASE + 0x5618) +#define SCR_PAD4_SET (REGISTERS_BASE + 0x561C) +#define SCR_PAD4_CLR (REGISTERS_BASE + 0x5620) +#define SCR_PAD5 (REGISTERS_BASE + 0x5624) +#define SCR_PAD5_SET (REGISTERS_BASE + 0x5628) +#define SCR_PAD5_CLR (REGISTERS_BASE + 0x562C) +#define SCR_PAD6 (REGISTERS_BASE + 0x5630) +#define SCR_PAD7 (REGISTERS_BASE + 0x5634) +#define SCR_PAD8 (REGISTERS_BASE + 0x5638) +#define SCR_PAD9 (REGISTERS_BASE + 0x563C) + +/* Spare registers*/ +#define SPARE_A1 (REGISTERS_BASE + 0x0994) +#define SPARE_A2 (REGISTERS_BASE + 0x0998) +#define SPARE_A3 (REGISTERS_BASE + 0x099C) +#define SPARE_A4 (REGISTERS_BASE + 0x09A0) +#define SPARE_A5 (REGISTERS_BASE + 0x09A4) +#define SPARE_A6 (REGISTERS_BASE + 0x09A8) +#define SPARE_A7 (REGISTERS_BASE + 0x09AC) +#define SPARE_A8 (REGISTERS_BASE + 0x09B0) +#define SPARE_B1 (REGISTERS_BASE + 0x5420) +#define SPARE_B2 (REGISTERS_BASE + 0x5424) +#define SPARE_B3 (REGISTERS_BASE + 0x5428) +#define SPARE_B4 (REGISTERS_BASE + 0x542C) +#define SPARE_B5 (REGISTERS_BASE + 0x5430) +#define SPARE_B6 (REGISTERS_BASE + 0x5434) +#define SPARE_B7 (REGISTERS_BASE + 0x5438) +#define SPARE_B8 (REGISTERS_BASE + 0x543C) + +enum wl12xx_acx_int_reg { + ACX_REG_INTERRUPT_TRIG, + ACX_REG_INTERRUPT_TRIG_H, + +/*============================================= + Host Interrupt Mask Register - 32bit (RW) + ------------------------------------------ + Setting a bit in this register masks the + corresponding interrupt to the host. + 0 - RX0 - Rx first dubble buffer Data Interrupt + 1 - TXD - Tx Data Interrupt + 2 - TXXFR - Tx Transfer Interrupt + 3 - RX1 - Rx second dubble buffer Data Interrupt + 4 - RXXFR - Rx Transfer Interrupt + 5 - EVENT_A - Event Mailbox interrupt + 6 - EVENT_B - Event Mailbox interrupt + 7 - WNONHST - Wake On Host Interrupt + 8 - TRACE_A - Debug Trace interrupt + 9 - TRACE_B - Debug Trace interrupt + 10 - CDCMP - Command Complete Interrupt + 11 - + 12 - + 13 - + 14 - ICOMP - Initialization Complete Interrupt + 16 - SG SE - Soft Gemini - Sense enable interrupt + 17 - SG SD - Soft Gemini - Sense disable interrupt + 18 - - + 19 - - + 20 - - + 21- - + Default: 0x0001 +*==============================================*/ + ACX_REG_INTERRUPT_MASK, + +/*============================================= + Host Interrupt Mask Set 16bit, (Write only) + ------------------------------------------ + Setting a bit in this register sets + the corresponding bin in ACX_HINT_MASK register + without effecting the mask + state of other bits (0 = no effect). +==============================================*/ + ACX_REG_HINT_MASK_SET, + +/*============================================= + Host Interrupt Mask Clear 16bit,(Write only) + ------------------------------------------ + Setting a bit in this register clears + the corresponding bin in ACX_HINT_MASK register + without effecting the mask + state of other bits (0 = no effect). +=============================================*/ + ACX_REG_HINT_MASK_CLR, + +/*============================================= + Host Interrupt Status Nondestructive Read + 16bit,(Read only) + ------------------------------------------ + The host can read this register to determine + which interrupts are active. + Reading this register doesn't + effect its content. +=============================================*/ + ACX_REG_INTERRUPT_NO_CLEAR, + +/*============================================= + Host Interrupt Status Clear on Read Register + 16bit,(Read only) + ------------------------------------------ + The host can read this register to determine + which interrupts are active. + Reading this register clears it, + thus making all interrupts inactive. +==============================================*/ + ACX_REG_INTERRUPT_CLEAR, + +/*============================================= + Host Interrupt Acknowledge Register + 16bit,(Write only) + ------------------------------------------ + The host can set individual bits in this + register to clear (acknowledge) the corresp. + interrupt status bits in the HINT_STS_CLR and + HINT_STS_ND registers, thus making the + assotiated interrupt inactive. (0-no effect) +==============================================*/ + ACX_REG_INTERRUPT_ACK, + +/*=============================================== + Host Software Reset - 32bit RW + ------------------------------------------ + [31:1] Reserved + 0 SOFT_RESET Soft Reset - When this bit is set, + it holds the Wlan hardware in a soft reset state. + This reset disables all MAC and baseband processor + clocks except the CardBus/PCI interface clock. + It also initializes all MAC state machines except + the host interface. It does not reload the + contents of the EEPROM. When this bit is cleared + (not self-clearing), the Wlan hardware + exits the software reset state. +===============================================*/ + ACX_REG_SLV_SOFT_RESET, + +/*=============================================== + EEPROM Burst Read Start - 32bit RW + ------------------------------------------ + [31:1] Reserved + 0 ACX_EE_START - EEPROM Burst Read Start 0 + Setting this bit starts a burst read from + the external EEPROM. + If this bit is set (after reset) before an EEPROM read/write, + the burst read starts at EEPROM address 0. + Otherwise, it starts at the address + following the address of the previous access. + TheWlan hardware hardware clears this bit automatically. + + Default: 0x00000000 +*================================================*/ + ACX_REG_EE_START, + +/* Embedded ARM CPU Control */ + +/*=============================================== + Halt eCPU - 32bit RW + ------------------------------------------ + 0 HALT_ECPU Halt Embedded CPU - This bit is the + compliment of bit 1 (MDATA2) in the SOR_CFG register. + During a hardware reset, this bit holds + the inverse of MDATA2. + When downloading firmware from the host, + set this bit (pull down MDATA2). + The host clears this bit after downloading the firmware into + zero-wait-state SSRAM. + When loading firmware from Flash, clear this bit (pull up MDATA2) + so that the eCPU can run the bootloader code in Flash + HALT_ECPU eCPU State + -------------------- + 1 halt eCPU + 0 enable eCPU + ===============================================*/ + ACX_REG_ECPU_CONTROL, + + ACX_REG_TABLE_LEN +}; + +#define ACX_SLV_SOFT_RESET_BIT BIT(1) +#define ACX_REG_EEPROM_START_BIT BIT(1) + +/* Command/Information Mailbox Pointers */ + +/*=============================================== + Command Mailbox Pointer - 32bit RW + ------------------------------------------ + This register holds the start address of + the command mailbox located in the Wlan hardware memory. + The host must read this pointer after a reset to + find the location of the command mailbox. + The Wlan hardware initializes the command mailbox + pointer with the default address of the command mailbox. + The command mailbox pointer is not valid until after + the host receives the Init Complete interrupt from + the Wlan hardware. + ===============================================*/ +#define REG_COMMAND_MAILBOX_PTR (SCR_PAD0) + +/*=============================================== + Information Mailbox Pointer - 32bit RW + ------------------------------------------ + This register holds the start address of + the information mailbox located in the Wlan hardware memory. + The host must read this pointer after a reset to find + the location of the information mailbox. + The Wlan hardware initializes the information mailbox pointer + with the default address of the information mailbox. + The information mailbox pointer is not valid + until after the host receives the Init Complete interrupt from + the Wlan hardware. + ===============================================*/ +#define REG_EVENT_MAILBOX_PTR (SCR_PAD1) + + +/* Misc */ + +#define REG_ENABLE_TX_RX (ENABLE) +/* + * Rx configuration (filter) information element + * --------------------------------------------- + */ +#define REG_RX_CONFIG (RX_CFG) +#define REG_RX_FILTER (RX_FILTER_CFG) + + +#define RX_CFG_ENABLE_PHY_HEADER_PLCP 0x0002 + +/* promiscuous - receives all valid frames */ +#define RX_CFG_PROMISCUOUS 0x0008 + +/* receives frames from any BSSID */ +#define RX_CFG_BSSID 0x0020 + +/* receives frames destined to any MAC address */ +#define RX_CFG_MAC 0x0010 + +#define RX_CFG_ENABLE_ONLY_MY_DEST_MAC 0x0010 +#define RX_CFG_ENABLE_ANY_DEST_MAC 0x0000 +#define RX_CFG_ENABLE_ONLY_MY_BSSID 0x0020 +#define RX_CFG_ENABLE_ANY_BSSID 0x0000 + +/* discards all broadcast frames */ +#define RX_CFG_DISABLE_BCAST 0x0200 + +#define RX_CFG_ENABLE_ONLY_MY_SSID 0x0400 +#define RX_CFG_ENABLE_RX_CMPLT_FCS_ERROR 0x0800 +#define RX_CFG_COPY_RX_STATUS 0x2000 +#define RX_CFG_TSF 0x10000 + +#define RX_CONFIG_OPTION_ANY_DST_MY_BSS (RX_CFG_ENABLE_ANY_DEST_MAC | \ + RX_CFG_ENABLE_ONLY_MY_BSSID) + +#define RX_CONFIG_OPTION_MY_DST_ANY_BSS (RX_CFG_ENABLE_ONLY_MY_DEST_MAC\ + | RX_CFG_ENABLE_ANY_BSSID) + +#define RX_CONFIG_OPTION_ANY_DST_ANY_BSS (RX_CFG_ENABLE_ANY_DEST_MAC | \ + RX_CFG_ENABLE_ANY_BSSID) + +#define RX_CONFIG_OPTION_MY_DST_MY_BSS (RX_CFG_ENABLE_ONLY_MY_DEST_MAC\ + | RX_CFG_ENABLE_ONLY_MY_BSSID) + +#define RX_CONFIG_OPTION_FOR_SCAN (RX_CFG_ENABLE_PHY_HEADER_PLCP \ + | RX_CFG_ENABLE_RX_CMPLT_FCS_ERROR \ + | RX_CFG_COPY_RX_STATUS | RX_CFG_TSF) + +#define RX_CONFIG_OPTION_FOR_MEASUREMENT (RX_CFG_ENABLE_ANY_DEST_MAC) + +#define RX_CONFIG_OPTION_FOR_JOIN (RX_CFG_ENABLE_ONLY_MY_BSSID | \ + RX_CFG_ENABLE_ONLY_MY_DEST_MAC) + +#define RX_CONFIG_OPTION_FOR_IBSS_JOIN (RX_CFG_ENABLE_ONLY_MY_SSID | \ + RX_CFG_ENABLE_ONLY_MY_DEST_MAC) + +#define RX_FILTER_OPTION_DEF (CFG_RX_MGMT_EN | CFG_RX_DATA_EN\ + | CFG_RX_CTL_EN | CFG_RX_BCN_EN\ + | CFG_RX_AUTH_EN | CFG_RX_ASSOC_EN) + +#define RX_FILTER_OPTION_FILTER_ALL 0 + +#define RX_FILTER_OPTION_DEF_PRSP_BCN (CFG_RX_PRSP_EN | CFG_RX_MGMT_EN\ + | CFG_RX_RCTS_ACK | CFG_RX_BCN_EN) + +#define RX_FILTER_OPTION_JOIN (CFG_RX_MGMT_EN | CFG_RX_DATA_EN\ + | CFG_RX_BCN_EN | CFG_RX_AUTH_EN\ + | CFG_RX_ASSOC_EN | CFG_RX_RCTS_ACK\ + | CFG_RX_PRSP_EN) + + +/*=============================================== + Phy regs + ===============================================*/ +#define ACX_PHY_ADDR_REG SBB_ADDR +#define ACX_PHY_DATA_REG SBB_DATA +#define ACX_PHY_CTRL_REG SBB_CTL +#define ACX_PHY_REG_WR_MASK 0x00000001ul +#define ACX_PHY_REG_RD_MASK 0x00000002ul + + +/*=============================================== + EEPROM Read/Write Request 32bit RW + ------------------------------------------ + 1 EE_READ - EEPROM Read Request 1 - Setting this bit + loads a single byte of data into the EE_DATA + register from the EEPROM location specified in + the EE_ADDR register. + The Wlan hardware hardware clears this bit automatically. + EE_DATA is valid when this bit is cleared. + + 0 EE_WRITE - EEPROM Write Request - Setting this bit + writes a single byte of data from the EE_DATA register into the + EEPROM location specified in the EE_ADDR register. + The Wlan hardware hardware clears this bit automatically. +*===============================================*/ +#define ACX_EE_CTL_REG EE_CTL +#define EE_WRITE 0x00000001ul +#define EE_READ 0x00000002ul + +/*=============================================== + EEPROM Address - 32bit RW + ------------------------------------------ + This register specifies the address + within the EEPROM from/to which to read/write data. + ===============================================*/ +#define ACX_EE_ADDR_REG EE_ADDR + +/*=============================================== + EEPROM Data - 32bit RW + ------------------------------------------ + This register either holds the read 8 bits of + data from the EEPROM or the write data + to be written to the EEPROM. + ===============================================*/ +#define ACX_EE_DATA_REG EE_DATA + +/*=============================================== + EEPROM Base Address - 32bit RW + ------------------------------------------ + This register holds the upper nine bits + [23:15] of the 24-bit Wlan hardware memory + address for burst reads from EEPROM accesses. + The EEPROM provides the lower 15 bits of this address. + The MSB of the address from the EEPROM is ignored. + ===============================================*/ +#define ACX_EE_CFG EE_CFG + +/*=============================================== + GPIO Output Values -32bit, RW + ------------------------------------------ + [31:16] Reserved + [15: 0] Specify the output values (at the output driver inputs) for + GPIO[15:0], respectively. + ===============================================*/ +#define ACX_GPIO_OUT_REG GPIO_OUT +#define ACX_MAX_GPIO_LINES 15 + +/*=============================================== + Contention window -32bit, RW + ------------------------------------------ + [31:26] Reserved + [25:16] Max (0x3ff) + [15:07] Reserved + [06:00] Current contention window value - default is 0x1F + ===============================================*/ +#define ACX_CONT_WIND_CFG_REG CONT_WIND_CFG +#define ACX_CONT_WIND_MIN_MASK 0x0000007f +#define ACX_CONT_WIND_MAX 0x03ff0000 + +/* + * Indirect slave register/memory registers + * ---------------------------------------- + */ +#define HW_SLAVE_REG_ADDR_REG 0x00000004 +#define HW_SLAVE_REG_DATA_REG 0x00000008 +#define HW_SLAVE_REG_CTRL_REG 0x0000000c + +#define SLAVE_AUTO_INC 0x00010000 +#define SLAVE_NO_AUTO_INC 0x00000000 +#define SLAVE_HOST_LITTLE_ENDIAN 0x00000000 + +#define HW_SLAVE_MEM_ADDR_REG SLV_MEM_ADDR +#define HW_SLAVE_MEM_DATA_REG SLV_MEM_DATA +#define HW_SLAVE_MEM_CTRL_REG SLV_MEM_CTL +#define HW_SLAVE_MEM_ENDIAN_REG SLV_END_CTL + +#define HW_FUNC_EVENT_INT_EN 0x8000 +#define HW_FUNC_EVENT_MASK_REG 0x00000034 + +#define ACX_MAC_TIMESTAMP_REG (MAC_TIMESTAMP) + +/*=============================================== + HI_CFG Interface Configuration Register Values + ------------------------------------------ + ===============================================*/ +#define HI_CFG_UART_ENABLE 0x00000004 +#define HI_CFG_RST232_ENABLE 0x00000008 +#define HI_CFG_CLOCK_REQ_SELECT 0x00000010 +#define HI_CFG_HOST_INT_ENABLE 0x00000020 +#define HI_CFG_VLYNQ_OUTPUT_ENABLE 0x00000040 +#define HI_CFG_HOST_INT_ACTIVE_LOW 0x00000080 +#define HI_CFG_UART_TX_OUT_GPIO_15 0x00000100 +#define HI_CFG_UART_TX_OUT_GPIO_14 0x00000200 +#define HI_CFG_UART_TX_OUT_GPIO_7 0x00000400 + +/* + * NOTE: USE_ACTIVE_HIGH compilation flag should be defined in makefile + * for platforms using active high interrupt level + */ +#ifdef USE_ACTIVE_HIGH +#define HI_CFG_DEF_VAL \ + (HI_CFG_UART_ENABLE | \ + HI_CFG_RST232_ENABLE | \ + HI_CFG_CLOCK_REQ_SELECT | \ + HI_CFG_HOST_INT_ENABLE) +#else +#define HI_CFG_DEF_VAL \ + (HI_CFG_UART_ENABLE | \ + HI_CFG_RST232_ENABLE | \ + HI_CFG_CLOCK_REQ_SELECT | \ + HI_CFG_HOST_INT_ENABLE) + +#endif + +#define REF_FREQ_19_2 0 +#define REF_FREQ_26_0 1 +#define REF_FREQ_38_4 2 +#define REF_FREQ_40_0 3 +#define REF_FREQ_33_6 4 +#define REF_FREQ_NUM 5 + +#define LUT_PARAM_INTEGER_DIVIDER 0 +#define LUT_PARAM_FRACTIONAL_DIVIDER 1 +#define LUT_PARAM_ATTN_BB 2 +#define LUT_PARAM_ALPHA_BB 3 +#define LUT_PARAM_STOP_TIME_BB 4 +#define LUT_PARAM_BB_PLL_LOOP_FILTER 5 +#define LUT_PARAM_NUM 6 + +#define ACX_EEPROMLESS_IND_REG (SCR_PAD4) +#define USE_EEPROM 0 +#define SOFT_RESET_MAX_TIME 1000000 +#define SOFT_RESET_STALL_TIME 1000 +#define NVS_DATA_BUNDARY_ALIGNMENT 4 + + +/* Firmware image load chunk size */ +#define CHUNK_SIZE 512 + +/* Firmware image header size */ +#define FW_HDR_SIZE 8 + +#define ECPU_CONTROL_HALT 0x00000101 + + +/****************************************************************************** + + CHANNELS, BAND & REG DOMAINS definitions + +******************************************************************************/ + + +enum { + RADIO_BAND_2_4GHZ = 0, /* 2.4 Ghz band */ + RADIO_BAND_5GHZ = 1, /* 5 Ghz band */ + RADIO_BAND_JAPAN_4_9_GHZ = 2, + DEFAULT_BAND = RADIO_BAND_2_4GHZ, + INVALID_BAND = 0xFE, + MAX_RADIO_BANDS = 0xFF +}; + +enum { + NO_RATE = 0, + RATE_1MBPS = 0x0A, + RATE_2MBPS = 0x14, + RATE_5_5MBPS = 0x37, + RATE_6MBPS = 0x0B, + RATE_9MBPS = 0x0F, + RATE_11MBPS = 0x6E, + RATE_12MBPS = 0x0A, + RATE_18MBPS = 0x0E, + RATE_22MBPS = 0xDC, + RATE_24MBPS = 0x09, + RATE_36MBPS = 0x0D, + RATE_48MBPS = 0x08, + RATE_54MBPS = 0x0C +}; + +enum { + RATE_INDEX_1MBPS = 0, + RATE_INDEX_2MBPS = 1, + RATE_INDEX_5_5MBPS = 2, + RATE_INDEX_6MBPS = 3, + RATE_INDEX_9MBPS = 4, + RATE_INDEX_11MBPS = 5, + RATE_INDEX_12MBPS = 6, + RATE_INDEX_18MBPS = 7, + RATE_INDEX_22MBPS = 8, + RATE_INDEX_24MBPS = 9, + RATE_INDEX_36MBPS = 10, + RATE_INDEX_48MBPS = 11, + RATE_INDEX_54MBPS = 12, + RATE_INDEX_MAX = RATE_INDEX_54MBPS, + MAX_RATE_INDEX, + INVALID_RATE_INDEX = MAX_RATE_INDEX, + RATE_INDEX_ENUM_MAX_SIZE = 0x7FFFFFFF +}; + +enum { + RATE_MASK_1MBPS = 0x1, + RATE_MASK_2MBPS = 0x2, + RATE_MASK_5_5MBPS = 0x4, + RATE_MASK_11MBPS = 0x20, +}; + +#define SHORT_PREAMBLE_BIT BIT(0) /* CCK or Barker depending on the rate */ +#define OFDM_RATE_BIT BIT(6) +#define PBCC_RATE_BIT BIT(7) + +enum { + CCK_LONG = 0, + CCK_SHORT = SHORT_PREAMBLE_BIT, + PBCC_LONG = PBCC_RATE_BIT, + PBCC_SHORT = PBCC_RATE_BIT | SHORT_PREAMBLE_BIT, + OFDM = OFDM_RATE_BIT +}; + +/****************************************************************************** + +Transmit-Descriptor RATE-SET field definitions... + +Define a new "Rate-Set" for TX path that incorporates the +Rate & Modulation info into a single 16-bit field. + +TxdRateSet_t: +b15 - Indicates Preamble type (1=SHORT, 0=LONG). + Notes: + Must be LONG (0) for 1Mbps rate. + Does not apply (set to 0) for RevG-OFDM rates. +b14 - Indicates PBCC encoding (1=PBCC, 0=not). + Notes: + Does not apply (set to 0) for rates 1 and 2 Mbps. + Does not apply (set to 0) for RevG-OFDM rates. +b13 - Unused (set to 0). +b12-b0 - Supported Rate indicator bits as defined below. + +******************************************************************************/ + + +#define TNETW1251_CHIP_ID_PG1_0 0x07010101 +#define TNETW1251_CHIP_ID_PG1_1 0x07020101 +#define TNETW1251_CHIP_ID_PG1_2 0x07030101 + +/************************************************************************* + + Interrupt Trigger Register (Host -> WiLink) + +**************************************************************************/ + +/* Hardware to Embedded CPU Interrupts - first 32-bit register set */ + +/* + * Host Command Interrupt. Setting this bit masks + * the interrupt that the host issues to inform + * the FW that it has sent a command + * to the Wlan hardware Command Mailbox. + */ +#define INTR_TRIG_CMD BIT(0) + +/* + * Host Event Acknowlegde Interrupt. The host + * sets this bit to acknowledge that it received + * the unsolicited information from the event + * mailbox. + */ +#define INTR_TRIG_EVENT_ACK BIT(1) + +/* + * The host sets this bit to inform the Wlan + * FW that a TX packet is in the XFER + * Buffer #0. + */ +#define INTR_TRIG_TX_PROC0 BIT(2) + +/* + * The host sets this bit to inform the FW + * that it read a packet from RX XFER + * Buffer #0. + */ +#define INTR_TRIG_RX_PROC0 BIT(3) + +#define INTR_TRIG_DEBUG_ACK BIT(4) + +#define INTR_TRIG_STATE_CHANGED BIT(5) + + +/* Hardware to Embedded CPU Interrupts - second 32-bit register set */ + +/* + * The host sets this bit to inform the FW + * that it read a packet from RX XFER + * Buffer #1. + */ +#define INTR_TRIG_RX_PROC1 BIT(17) + +/* + * The host sets this bit to inform the Wlan + * hardware that a TX packet is in the XFER + * Buffer #1. + */ +#define INTR_TRIG_TX_PROC1 BIT(18) + +#endif diff --git a/drivers/net/wireless/wl12xx/rx.c b/drivers/net/wireless/wl12xx/rx.c new file mode 100644 index 0000000..981ea25 --- /dev/null +++ b/drivers/net/wireless/wl12xx/rx.c @@ -0,0 +1,208 @@ +/* + * This file is part of wl12xx + * + * Copyright (c) 1998-2007 Texas Instruments Incorporated + * Copyright (C) 2008 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include <linux/skbuff.h> +#include <net/mac80211.h> + +#include "wl12xx.h" +#include "reg.h" +#include "spi.h" +#include "rx.h" + +static void wl12xx_rx_header(struct wl12xx *wl, + struct wl12xx_rx_descriptor *desc) +{ + u32 rx_packet_ring_addr; + + rx_packet_ring_addr = wl->data_path->rx_packet_ring_addr; + if (wl->rx_current_buffer) + rx_packet_ring_addr += wl->data_path->rx_packet_ring_chunk_size; + + wl12xx_spi_mem_read(wl, rx_packet_ring_addr, desc, + sizeof(struct wl12xx_rx_descriptor)); +} + +static void wl12xx_rx_status(struct wl12xx *wl, + struct wl12xx_rx_descriptor *desc, + struct ieee80211_rx_status *status, + u8 beacon) +{ + memset(status, 0, sizeof(struct ieee80211_rx_status)); + + status->band = IEEE80211_BAND_2GHZ; + status->mactime = desc->timestamp; + + /* + * The rx status timestamp is a 32 bits value while the TSF is a + * 64 bits one. + * For IBSS merging, TSF is mandatory, so we have to get it + * somehow, so we ask for ACX_TSF_INFO. + * That could be moved to the get_tsf() hook, but unfortunately, + * this one must be atomic, while our SPI routines can sleep. + */ + if ((wl->bss_type == BSS_TYPE_IBSS) && beacon) { + u64 mactime; + int ret; + struct wl12xx_command cmd; + struct acx_tsf_info *tsf_info; + + memset(&cmd, 0, sizeof(cmd)); + + ret = wl12xx_cmd_interrogate(wl, ACX_TSF_INFO, + sizeof(struct acx_tsf_info), + &cmd); + if (ret < 0) { + wl12xx_warning("ACX_FW_REV interrogate failed"); + return; + } + + tsf_info = (struct acx_tsf_info *)&(cmd.parameters); + + mactime = tsf_info->current_tsf_lsb | + (tsf_info->current_tsf_msb << 31); + + status->mactime = mactime; + } + + status->signal = desc->rssi; + status->qual = (desc->rssi - WL12XX_RX_MIN_RSSI) * 100 / + (WL12XX_RX_MAX_RSSI - WL12XX_RX_MIN_RSSI); + status->qual = min(status->qual, 100); + status->qual = max(status->qual, 0); + + /* + * FIXME: guessing that snr needs to be divided by two, otherwise + * the values don't make any sense + */ + status->noise = desc->rssi - desc->snr / 2; + + status->freq = ieee80211_channel_to_frequency(desc->channel); + + status->flag |= RX_FLAG_TSFT; + + if (desc->flags & RX_DESC_ENCRYPTION_MASK) { + status->flag |= RX_FLAG_IV_STRIPPED | RX_FLAG_MMIC_STRIPPED; + + if (likely(!(desc->flags & RX_DESC_DECRYPT_FAIL))) + status->flag |= RX_FLAG_DECRYPTED; + + if (unlikely(desc->flags & RX_DESC_MIC_FAIL)) + status->flag |= RX_FLAG_MMIC_ERROR; + } + + if (unlikely(!(desc->flags & RX_DESC_VALID_FCS))) + status->flag |= RX_FLAG_FAILED_FCS_CRC; + + + /* FIXME: set status->rate_idx */ +} + +static void wl12xx_rx_body(struct wl12xx *wl, + struct wl12xx_rx_descriptor *desc) +{ + struct sk_buff *skb; + struct ieee80211_rx_status status; + u8 *rx_buffer, beacon = 0; + u16 length, *fc; + u32 curr_id, last_id_inc, rx_packet_ring_addr; + + length = WL12XX_RX_ALIGN(desc->length - PLCP_HEADER_LENGTH); + curr_id = (desc->flags & RX_DESC_SEQNUM_MASK) >> RX_DESC_PACKETID_SHIFT; + last_id_inc = (wl->rx_last_id + 1) % (RX_MAX_PACKET_ID + 1); + + if (last_id_inc != curr_id) { + wl12xx_warning("curr ID:%d, last ID inc:%d", + curr_id, last_id_inc); + wl->rx_last_id = curr_id; + } else { + wl->rx_last_id = last_id_inc; + } + + rx_packet_ring_addr = wl->data_path->rx_packet_ring_addr + + sizeof(struct wl12xx_rx_descriptor) + 20; + if (wl->rx_current_buffer) + rx_packet_ring_addr += wl->data_path->rx_packet_ring_chunk_size; + + skb = dev_alloc_skb(length); + if (!skb) { + wl12xx_error("Couldn't allocate RX frame"); + return; + } + + rx_buffer = skb_put(skb, length); + wl12xx_spi_mem_read(wl, rx_packet_ring_addr, rx_buffer, length); + + /* The actual lenght doesn't include the target's alignment */ + skb->len = desc->length - PLCP_HEADER_LENGTH; + + fc = (u16 *)skb->data; + + if ((*fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON) + beacon = 1; + + wl12xx_rx_status(wl, desc, &status, beacon); + + wl12xx_debug(DEBUG_RX, "rx skb 0x%p: %d B %s", skb, skb->len, + beacon ? "beacon" : ""); + + ieee80211_rx(wl->hw, skb, &status); +} + +static void wl12xx_rx_ack(struct wl12xx *wl) +{ + u32 data, addr; + + if (wl->rx_current_buffer) { + addr = ACX_REG_INTERRUPT_TRIG_H; + data = INTR_TRIG_RX_PROC1; + } else { + addr = ACX_REG_INTERRUPT_TRIG; + data = INTR_TRIG_RX_PROC0; + } + + wl12xx_reg_write32(wl, addr, data); + + /* Toggle buffer ring */ + wl->rx_current_buffer = !wl->rx_current_buffer; +} + + +void wl12xx_rx(struct wl12xx *wl) +{ + struct wl12xx_rx_descriptor rx_desc; + + if (wl->state != WL12XX_STATE_ON) + return; + + /* We first read the frame's header */ + wl12xx_rx_header(wl, &rx_desc); + + /* Now we can read the body */ + wl12xx_rx_body(wl, &rx_desc); + + /* Finally, we need to ACK the RX */ + wl12xx_rx_ack(wl); + + return; +} diff --git a/drivers/net/wireless/wl12xx/rx.h b/drivers/net/wireless/wl12xx/rx.h new file mode 100644 index 0000000..8a23fde --- /dev/null +++ b/drivers/net/wireless/wl12xx/rx.h @@ -0,0 +1,122 @@ +/* + * This file is part of wl12xx + * + * Copyright (c) 1998-2007 Texas Instruments Incorporated + * Copyright (C) 2008 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef __WL12XX_RX_H__ +#define __WL12XX_RX_H__ + +#include <linux/bitops.h> + +/* + * RX PATH + * + * The Rx path uses a double buffer and an rx_contro structure, each located + * at a fixed address in the device memory. The host keeps track of which + * buffer is available and alternates between them on a per packet basis. + * The size of each of the two buffers is large enough to hold the longest + * 802.3 packet. + * The RX path goes like that: + * 1) The target generates an interrupt each time a new packet is received. + * There are 2 RX interrupts, one for each buffer. + * 2) The host reads the received packet from one of the double buffers. + * 3) The host triggers a target interrupt. + * 4) The target prepares the next RX packet. + */ + +#define WL12XX_RX_MAX_RSSI -30 +#define WL12XX_RX_MIN_RSSI -95 + +#define WL12XX_RX_ALIGN_TO 4 +#define WL12XX_RX_ALIGN(len) (((len) + WL12XX_RX_ALIGN_TO - 1) & \ + ~(WL12XX_RX_ALIGN_TO - 1)) + +#define SHORT_PREAMBLE_BIT BIT(0) +#define OFDM_RATE_BIT BIT(6) +#define PBCC_RATE_BIT BIT(7) + +#define PLCP_HEADER_LENGTH 8 +#define RX_DESC_PACKETID_SHIFT 11 +#define RX_MAX_PACKET_ID 3 + +#define RX_DESC_VALID_FCS 0x0001 +#define RX_DESC_MATCH_RXADDR1 0x0002 +#define RX_DESC_MCAST 0x0004 +#define RX_DESC_STAINTIM 0x0008 +#define RX_DESC_VIRTUAL_BM 0x0010 +#define RX_DESC_BCAST 0x0020 +#define RX_DESC_MATCH_SSID 0x0040 +#define RX_DESC_MATCH_BSSID 0x0080 +#define RX_DESC_ENCRYPTION_MASK 0x0300 +#define RX_DESC_MEASURMENT 0x0400 +#define RX_DESC_SEQNUM_MASK 0x1800 +#define RX_DESC_MIC_FAIL 0x2000 +#define RX_DESC_DECRYPT_FAIL 0x4000 + +struct wl12xx_rx_descriptor { + u32 timestamp; /* In microseconds */ + u16 length; /* Paylod length, including headers */ + u16 flags; + + /* + * 0 - 802.11 + * 1 - 802.3 + * 2 - IP + * 3 - Raw Codec + */ + u8 type; + + /* + * Recevied Rate: + * 0x0A - 1MBPS + * 0x14 - 2MBPS + * 0x37 - 5_5MBPS + * 0x0B - 6MBPS + * 0x0F - 9MBPS + * 0x6E - 11MBPS + * 0x0A - 12MBPS + * 0x0E - 18MBPS + * 0xDC - 22MBPS + * 0x09 - 24MBPS + * 0x0D - 36MBPS + * 0x08 - 48MBPS + * 0x0C - 54MBPS + */ + u8 rate; + + u8 mod_pre; /* Modulation and preamble */ + u8 channel; + + /* + * 0 - 2.4 Ghz + * 1 - 5 Ghz + */ + u8 band; + + s8 rssi; /* in dB */ + u8 rcpi; /* in dB */ + u8 snr; /* in dB */ +} __attribute__ ((packed)); + +void wl12xx_rx(struct wl12xx *wl); + +#endif diff --git a/drivers/net/wireless/wl12xx/spi.c b/drivers/net/wireless/wl12xx/spi.c new file mode 100644 index 0000000..abdf171 --- /dev/null +++ b/drivers/net/wireless/wl12xx/spi.c @@ -0,0 +1,358 @@ +/* + * This file is part of wl12xx + * + * Copyright (C) 2008 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include <linux/module.h> +#include <linux/crc7.h> +#include <linux/spi/spi.h> + +#include "wl12xx.h" +#include "wl12xx_80211.h" +#include "reg.h" +#include "spi.h" +#include "ps.h" + +static int wl12xx_translate_reg_addr(struct wl12xx *wl, int addr) +{ + /* If the address is lower than REGISTERS_BASE, it means that this is + * a chip-specific register address, so look it up in the registers + * table */ + if (addr < REGISTERS_BASE) { + /* Make sure we don't go over the table */ + if (addr >= ACX_REG_TABLE_LEN) { + wl12xx_error("address out of range (%d)", addr); + return -EINVAL; + } + addr = wl->chip.acx_reg_table[addr]; + } + + return addr - wl->physical_reg_addr + wl->virtual_reg_addr; +} + +static int wl12xx_translate_mem_addr(struct wl12xx *wl, int addr) +{ + return addr - wl->physical_mem_addr + wl->virtual_mem_addr; +} + + +void wl12xx_spi_reset(struct wl12xx *wl) +{ + u8 *cmd; + struct spi_transfer t; + struct spi_message m; + + cmd = kzalloc(WSPI_INIT_CMD_LEN, GFP_KERNEL); + if (!cmd) { + wl12xx_error("could not allocate cmd for spi reset"); + return; + } + + memset(&t, 0, sizeof(t)); + spi_message_init(&m); + + memset(cmd, 0xff, WSPI_INIT_CMD_LEN); + + t.tx_buf = cmd; + t.len = WSPI_INIT_CMD_LEN; + spi_message_add_tail(&t, &m); + + spi_sync(wl->spi, &m); + + wl12xx_dump(DEBUG_SPI, "spi reset -> ", cmd, WSPI_INIT_CMD_LEN); +} + +void wl12xx_spi_init(struct wl12xx *wl) +{ + u8 crc[WSPI_INIT_CMD_CRC_LEN], *cmd; + struct spi_transfer t; + struct spi_message m; + + cmd = kzalloc(WSPI_INIT_CMD_LEN, GFP_KERNEL); + if (!cmd) { + wl12xx_error("could not allocate cmd for spi init"); + return; + } + + memset(crc, 0, sizeof(crc)); + memset(&t, 0, sizeof(t)); + spi_message_init(&m); + + /* + * Set WSPI_INIT_COMMAND + * the data is being send from the MSB to LSB + */ + cmd[2] = 0xff; + cmd[3] = 0xff; + cmd[1] = WSPI_INIT_CMD_START | WSPI_INIT_CMD_TX; + cmd[0] = 0; + cmd[7] = 0; + cmd[6] |= HW_ACCESS_WSPI_INIT_CMD_MASK << 3; + cmd[6] |= HW_ACCESS_WSPI_FIXED_BUSY_LEN & WSPI_INIT_CMD_FIXEDBUSY_LEN; + + if (HW_ACCESS_WSPI_FIXED_BUSY_LEN == 0) + cmd[5] |= WSPI_INIT_CMD_DIS_FIXEDBUSY; + else + cmd[5] |= WSPI_INIT_CMD_EN_FIXEDBUSY; + + cmd[5] |= WSPI_INIT_CMD_IOD | WSPI_INIT_CMD_IP | WSPI_INIT_CMD_CS + | WSPI_INIT_CMD_WSPI | WSPI_INIT_CMD_WS; + + crc[0] = cmd[1]; + crc[1] = cmd[0]; + crc[2] = cmd[7]; + crc[3] = cmd[6]; + crc[4] = cmd[5]; + + cmd[4] |= crc7(0, crc, WSPI_INIT_CMD_CRC_LEN) << 1; + cmd[4] |= WSPI_INIT_CMD_END; + + t.tx_buf = cmd; + t.len = WSPI_INIT_CMD_LEN; + spi_message_add_tail(&t, &m); + + spi_sync(wl->spi, &m); + + wl12xx_dump(DEBUG_SPI, "spi init -> ", cmd, WSPI_INIT_CMD_LEN); +} + +/* Set the SPI partitions to access the chip addresses + * + * There are two VIRTUAL (SPI) partitions (the memory partition and the + * registers partition), which are mapped to two different areas of the + * PHYSICAL (hardware) memory. This function also makes other checks to + * ensure that the partitions are not overlapping. In the diagram below, the + * memory partition comes before the register partition, but the opposite is + * also supported. + * + * PHYSICAL address + * space + * + * | | + * ...+----+--> mem_start + * VIRTUAL address ... | | + * space ... | | [PART_0] + * ... | | + * 0x00000000 <--+----+... ...+----+--> mem_start + mem_size + * | | ... | | + * |MEM | ... | | + * | | ... | | + * part_size <--+----+... | | {unused area) + * | | ... | | + * |REG | ... | | + * part_size | | ... | | + * + <--+----+... ...+----+--> reg_start + * reg_size ... | | + * ... | | [PART_1] + * ... | | + * ...+----+--> reg_start + reg_size + * | | + * + */ +void wl12xx_set_partition(struct wl12xx *wl, + u32 mem_start, u32 mem_size, + u32 reg_start, u32 reg_size) +{ + u8 tx_buf[sizeof(u32) + 2 * sizeof(struct wl12xx_partition)]; + struct wl12xx_partition *partition; + struct spi_transfer t; + struct spi_message m; + u32 *cmd; + size_t len; + int addr; + + spi_message_init(&m); + memset(&t, 0, sizeof(t)); + memset(tx_buf, 0, sizeof(tx_buf)); + + cmd = (u32 *) tx_buf; + partition = (struct wl12xx_partition *) (tx_buf + sizeof(u32)); + addr = HW_ACCESS_PART0_SIZE_ADDR; + len = 2 * sizeof(struct wl12xx_partition); + + *cmd |= WSPI_CMD_WRITE; + *cmd |= (len << WSPI_CMD_BYTE_LENGTH_OFFSET) & WSPI_CMD_BYTE_LENGTH; + *cmd |= addr & WSPI_CMD_BYTE_ADDR; + + wl12xx_debug(DEBUG_SPI, "mem_start %08X mem_size %08X", + mem_start, mem_size); + wl12xx_debug(DEBUG_SPI, "reg_start %08X reg_size %08X", + reg_start, reg_size); + + /* Make sure that the two partitions together don't exceed the + * address range */ + if ((mem_size + reg_size) > HW_ACCESS_MEMORY_MAX_RANGE) { + wl12xx_debug(DEBUG_SPI, "Total size exceeds maximum virtual" + " address range. Truncating partition[0]."); + mem_size = HW_ACCESS_MEMORY_MAX_RANGE - reg_size; + wl12xx_debug(DEBUG_SPI, "mem_start %08X mem_size %08X", + mem_start, mem_size); + wl12xx_debug(DEBUG_SPI, "reg_start %08X reg_size %08X", + reg_start, reg_size); + } + + if ((mem_start < reg_start) && + ((mem_start + mem_size) > reg_start)) { + /* Guarantee that the memory partition doesn't overlap the + * registers partition */ + wl12xx_debug(DEBUG_SPI, "End of partition[0] is " + "overlapping partition[1]. Adjusted."); + mem_size = reg_start - mem_start; + wl12xx_debug(DEBUG_SPI, "mem_start %08X mem_size %08X", + mem_start, mem_size); + wl12xx_debug(DEBUG_SPI, "reg_start %08X reg_size %08X", + reg_start, reg_size); + } else if ((reg_start < mem_start) && + ((reg_start + reg_size) > mem_start)) { + /* Guarantee that the register partition doesn't overlap the + * memory partition */ + wl12xx_debug(DEBUG_SPI, "End of partition[1] is" + " overlapping partition[0]. Adjusted."); + reg_size = mem_start - reg_start; + wl12xx_debug(DEBUG_SPI, "mem_start %08X mem_size %08X", + mem_start, mem_size); + wl12xx_debug(DEBUG_SPI, "reg_start %08X reg_size %08X", + reg_start, reg_size); + } + + partition[0].start = mem_start; + partition[0].size = mem_size; + partition[1].start = reg_start; + partition[1].size = reg_size; + + wl->physical_mem_addr = mem_start; + wl->physical_reg_addr = reg_start; + + wl->virtual_mem_addr = 0; + wl->virtual_reg_addr = mem_size; + + t.tx_buf = tx_buf; + t.len = sizeof(tx_buf); + spi_message_add_tail(&t, &m); + + spi_sync(wl->spi, &m); +} + +void wl12xx_spi_read(struct wl12xx *wl, int addr, void *buf, + size_t len) +{ + struct spi_transfer t[3]; + struct spi_message m; + char busy_buf[TNETWIF_READ_OFFSET_BYTES]; + u32 cmd; + + cmd = 0; + cmd |= WSPI_CMD_READ; + cmd |= (len << WSPI_CMD_BYTE_LENGTH_OFFSET) & WSPI_CMD_BYTE_LENGTH; + cmd |= addr & WSPI_CMD_BYTE_ADDR; + + spi_message_init(&m); + memset(t, 0, sizeof(t)); + + t[0].tx_buf = &cmd; + t[0].len = 4; + spi_message_add_tail(&t[0], &m); + + /* Busy and non busy words read */ + t[1].rx_buf = busy_buf; + t[1].len = TNETWIF_READ_OFFSET_BYTES; + spi_message_add_tail(&t[1], &m); + + t[2].rx_buf = buf; + t[2].len = len; + spi_message_add_tail(&t[2], &m); + + spi_sync(wl->spi, &m); + + /* FIXME: check busy words */ + + wl12xx_dump(DEBUG_SPI, "spi_read cmd -> ", &cmd, sizeof(cmd)); + wl12xx_dump(DEBUG_SPI, "spi_read buf <- ", buf, len); +} + +void wl12xx_spi_write(struct wl12xx *wl, int addr, void *buf, + size_t len) +{ + struct spi_transfer t[2]; + struct spi_message m; + u32 cmd; + + cmd = 0; + cmd |= WSPI_CMD_WRITE; + cmd |= (len << WSPI_CMD_BYTE_LENGTH_OFFSET) & WSPI_CMD_BYTE_LENGTH; + cmd |= addr & WSPI_CMD_BYTE_ADDR; + + spi_message_init(&m); + memset(t, 0, sizeof(t)); + + t[0].tx_buf = &cmd; + t[0].len = sizeof(cmd); + spi_message_add_tail(&t[0], &m); + + t[1].tx_buf = buf; + t[1].len = len; + spi_message_add_tail(&t[1], &m); + + spi_sync(wl->spi, &m); + + wl12xx_dump(DEBUG_SPI, "spi_write cmd -> ", &cmd, sizeof(cmd)); + wl12xx_dump(DEBUG_SPI, "spi_write buf -> ", buf, len); +} + +void wl12xx_spi_mem_read(struct wl12xx *wl, int addr, void *buf, + size_t len) +{ + int physical; + + physical = wl12xx_translate_mem_addr(wl, addr); + + wl12xx_spi_read(wl, physical, buf, len); +} + +void wl12xx_spi_mem_write(struct wl12xx *wl, int addr, void *buf, + size_t len) +{ + int physical; + + physical = wl12xx_translate_mem_addr(wl, addr); + + wl12xx_spi_write(wl, physical, buf, len); +} + +u32 wl12xx_mem_read32(struct wl12xx *wl, int addr) +{ + return wl12xx_read32(wl, wl12xx_translate_mem_addr(wl, addr)); +} + +void wl12xx_mem_write32(struct wl12xx *wl, int addr, u32 val) +{ + wl12xx_write32(wl, wl12xx_translate_mem_addr(wl, addr), val); +} + +u32 wl12xx_reg_read32(struct wl12xx *wl, int addr) +{ + return wl12xx_read32(wl, wl12xx_translate_reg_addr(wl, addr)); +} + +void wl12xx_reg_write32(struct wl12xx *wl, int addr, u32 val) +{ + wl12xx_write32(wl, wl12xx_translate_reg_addr(wl, addr), val); +} diff --git a/drivers/net/wireless/wl12xx/spi.h b/drivers/net/wireless/wl12xx/spi.h new file mode 100644 index 0000000..fd3227e --- /dev/null +++ b/drivers/net/wireless/wl12xx/spi.h @@ -0,0 +1,109 @@ +/* + * This file is part of wl12xx + * + * Copyright (c) 1998-2007 Texas Instruments Incorporated + * Copyright (C) 2008 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef __WL12XX_SPI_H__ +#define __WL12XX_SPI_H__ + +#include "cmd.h" +#include "acx.h" +#include "reg.h" + +#define HW_ACCESS_MEMORY_MAX_RANGE 0x1FFC0 + +#define HW_ACCESS_PART0_SIZE_ADDR 0x1FFC0 +#define HW_ACCESS_PART0_START_ADDR 0x1FFC4 +#define HW_ACCESS_PART1_SIZE_ADDR 0x1FFC8 +#define HW_ACCESS_PART1_START_ADDR 0x1FFCC + +#define HW_ACCESS_REGISTER_SIZE 4 + +#define HW_ACCESS_PRAM_MAX_RANGE 0x3c000 + +#define WSPI_CMD_READ 0x40000000 +#define WSPI_CMD_WRITE 0x00000000 +#define WSPI_CMD_FIXED 0x20000000 +#define WSPI_CMD_BYTE_LENGTH 0x1FFE0000 +#define WSPI_CMD_BYTE_LENGTH_OFFSET 17 +#define WSPI_CMD_BYTE_ADDR 0x0001FFFF + +#define WSPI_INIT_CMD_CRC_LEN 5 + +#define WSPI_INIT_CMD_START 0x00 +#define WSPI_INIT_CMD_TX 0x40 +/* the extra bypass bit is sampled by the TNET as '1' */ +#define WSPI_INIT_CMD_BYPASS_BIT 0x80 +#define WSPI_INIT_CMD_FIXEDBUSY_LEN 0x07 +#define WSPI_INIT_CMD_EN_FIXEDBUSY 0x80 +#define WSPI_INIT_CMD_DIS_FIXEDBUSY 0x00 +#define WSPI_INIT_CMD_IOD 0x40 +#define WSPI_INIT_CMD_IP 0x20 +#define WSPI_INIT_CMD_CS 0x10 +#define WSPI_INIT_CMD_WS 0x08 +#define WSPI_INIT_CMD_WSPI 0x01 +#define WSPI_INIT_CMD_END 0x01 + +#define WSPI_INIT_CMD_LEN 8 + +#define TNETWIF_READ_OFFSET_BYTES 8 +#define HW_ACCESS_WSPI_FIXED_BUSY_LEN \ + ((TNETWIF_READ_OFFSET_BYTES - 4) / sizeof(u32)) +#define HW_ACCESS_WSPI_INIT_CMD_MASK 0 + + +/* Raw target IO, address is not translated */ +void wl12xx_spi_read(struct wl12xx *wl, int addr, void *buf, size_t len); +void wl12xx_spi_write(struct wl12xx *wl, int addr, void *buf, size_t len); + +/* Memory target IO, address is tranlated to partition 0 */ +void wl12xx_spi_mem_read(struct wl12xx *wl, int addr, void *buf, size_t len); +void wl12xx_spi_mem_write(struct wl12xx *wl, int addr, void *buf, size_t len); +u32 wl12xx_mem_read32(struct wl12xx *wl, int addr); +void wl12xx_mem_write32(struct wl12xx *wl, int addr, u32 val); + +/* Registers IO */ +u32 wl12xx_reg_read32(struct wl12xx *wl, int addr); +void wl12xx_reg_write32(struct wl12xx *wl, int addr, u32 val); + +/* INIT and RESET words */ +void wl12xx_spi_reset(struct wl12xx *wl); +void wl12xx_spi_init(struct wl12xx *wl); +void wl12xx_set_partition(struct wl12xx *wl, + u32 part_start, u32 part_size, + u32 reg_start, u32 reg_size); + +static inline u32 wl12xx_read32(struct wl12xx *wl, int addr) +{ + u32 response; + + wl12xx_spi_read(wl, addr, &response, sizeof(u32)); + + return response; +} + +static inline void wl12xx_write32(struct wl12xx *wl, int addr, u32 val) +{ + wl12xx_spi_write(wl, addr, &val, sizeof(u32)); +} + +#endif /* __WL12XX_SPI_H__ */ diff --git a/drivers/net/wireless/wl12xx/tx.c b/drivers/net/wireless/wl12xx/tx.c new file mode 100644 index 0000000..62145e2 --- /dev/null +++ b/drivers/net/wireless/wl12xx/tx.c @@ -0,0 +1,557 @@ +/* + * This file is part of wl12xx + * + * Copyright (c) 1998-2007 Texas Instruments Incorporated + * Copyright (C) 2008 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include <linux/kernel.h> +#include <linux/module.h> + +#include "wl12xx.h" +#include "reg.h" +#include "spi.h" +#include "tx.h" +#include "ps.h" + +static bool wl12xx_tx_double_buffer_busy(struct wl12xx *wl, u32 data_out_count) +{ + int used, data_in_count; + + data_in_count = wl->data_in_count; + + if (data_in_count < data_out_count) + /* data_in_count has wrapped */ + data_in_count += TX_STATUS_DATA_OUT_COUNT_MASK + 1; + + used = data_in_count - data_out_count; + + WARN_ON(used < 0); + WARN_ON(used > DP_TX_PACKET_RING_CHUNK_NUM); + + if (used >= DP_TX_PACKET_RING_CHUNK_NUM) + return true; + else + return false; +} + +static int wl12xx_tx_path_status(struct wl12xx *wl) +{ + u32 status, addr, data_out_count; + bool busy; + + addr = wl->data_path->tx_control_addr; + status = wl12xx_mem_read32(wl, addr); + data_out_count = status & TX_STATUS_DATA_OUT_COUNT_MASK; + busy = wl12xx_tx_double_buffer_busy(wl, data_out_count); + + if (busy) + return -EBUSY; + + return 0; +} + +static int wl12xx_tx_id(struct wl12xx *wl, struct sk_buff *skb) +{ + int i; + + for (i = 0; i < FW_TX_CMPLT_BLOCK_SIZE; i++) + if (wl->tx_frames[i] == NULL) { + wl->tx_frames[i] = skb; + return i; + } + + return -EBUSY; +} + +static void wl12xx_tx_control(struct tx_double_buffer_desc *tx_hdr, + struct ieee80211_tx_info *control, u16 fc) +{ + *(u16 *)&tx_hdr->control = 0; + + tx_hdr->control.rate_policy = 0; + + /* 802.11 packets */ + tx_hdr->control.packet_type = 0; + + if (control->flags & IEEE80211_TX_CTL_NO_ACK) + tx_hdr->control.ack_policy = 1; + + tx_hdr->control.tx_complete = 1; + + if ((fc & IEEE80211_FTYPE_DATA) && + ((fc & IEEE80211_STYPE_QOS_DATA) || + (fc & IEEE80211_STYPE_QOS_NULLFUNC))) + tx_hdr->control.qos = 1; +} + +/* RSN + MIC = 8 + 8 = 16 bytes (worst case - AES). */ +#define MAX_MSDU_SECURITY_LENGTH 16 +#define MAX_MPDU_SECURITY_LENGTH 16 +#define WLAN_QOS_HDR_LEN 26 +#define MAX_MPDU_HEADER_AND_SECURITY (MAX_MPDU_SECURITY_LENGTH + \ + WLAN_QOS_HDR_LEN) +#define HW_BLOCK_SIZE 252 +static void wl12xx_tx_frag_block_num(struct tx_double_buffer_desc *tx_hdr) +{ + u16 payload_len, frag_threshold, mem_blocks; + u16 num_mpdus, mem_blocks_per_frag; + + frag_threshold = IEEE80211_MAX_FRAG_THRESHOLD; + tx_hdr->frag_threshold = cpu_to_le16(frag_threshold); + + payload_len = tx_hdr->length + MAX_MSDU_SECURITY_LENGTH; + + if (payload_len > frag_threshold) { + mem_blocks_per_frag = + ((frag_threshold + MAX_MPDU_HEADER_AND_SECURITY) / + HW_BLOCK_SIZE) + 1; + num_mpdus = payload_len / frag_threshold; + mem_blocks = num_mpdus * mem_blocks_per_frag; + payload_len -= num_mpdus * frag_threshold; + num_mpdus++; + + } else { + mem_blocks_per_frag = 0; + mem_blocks = 0; + num_mpdus = 1; + } + + mem_blocks += (payload_len / HW_BLOCK_SIZE) + 1; + + if (num_mpdus > 1) + mem_blocks += min(num_mpdus, mem_blocks_per_frag); + + tx_hdr->num_mem_blocks = mem_blocks; +} + +static int wl12xx_tx_fill_hdr(struct wl12xx *wl, struct sk_buff *skb, + struct ieee80211_tx_info *control) +{ + struct tx_double_buffer_desc *tx_hdr; + struct ieee80211_rate *rate; + int id; + u16 fc; + + if (!skb) + return -EINVAL; + + id = wl12xx_tx_id(wl, skb); + if (id < 0) + return id; + + fc = *(u16 *)skb->data; + tx_hdr = (struct tx_double_buffer_desc *) skb_push(skb, + sizeof(*tx_hdr)); + + tx_hdr->length = cpu_to_le16(skb->len - sizeof(*tx_hdr)); + rate = ieee80211_get_tx_rate(wl->hw, control); + tx_hdr->rate = cpu_to_le16(rate->hw_value); + tx_hdr->expiry_time = cpu_to_le32(1 << 16); + tx_hdr->id = id; + + /* FIXME: how to get the correct queue id? */ + tx_hdr->xmit_queue = 0; + + wl12xx_tx_control(tx_hdr, control, fc); + wl12xx_tx_frag_block_num(tx_hdr); + + return 0; +} + +/* We copy the packet to the target */ +static int wl12xx_tx_send_packet(struct wl12xx *wl, struct sk_buff *skb, + struct ieee80211_tx_info *control) +{ + struct tx_double_buffer_desc *tx_hdr; + int len; + u32 addr; + + if (!skb) + return -EINVAL; + + tx_hdr = (struct tx_double_buffer_desc *) skb->data; + + if (control->control.hw_key && + control->control.hw_key->alg == ALG_TKIP) { + int hdrlen; + u16 fc; + u8 *pos; + + fc = *(u16 *)(skb->data + sizeof(*tx_hdr)); + tx_hdr->length += WL12XX_TKIP_IV_SPACE; + + hdrlen = ieee80211_hdrlen(fc); + + pos = skb_push(skb, WL12XX_TKIP_IV_SPACE); + memmove(pos, pos + WL12XX_TKIP_IV_SPACE, + sizeof(*tx_hdr) + hdrlen); + } + + /* Revisit. This is a workaround for getting non-aligned packets. + This happens at least with EAPOL packets from the user space. + Our DMA requires packets to be aligned on a 4-byte boundary. + */ + if (unlikely((long)skb->data & 0x03)) { + int offset = (4 - (long)skb->data) & 0x03; + wl12xx_debug(DEBUG_TX, "skb offset %d", offset); + + /* check whether the current skb can be used */ + if (!skb_cloned(skb) && (skb_tailroom(skb) >= offset)) { + unsigned char *src = skb->data; + + /* align the buffer on a 4-byte boundary */ + skb_reserve(skb, offset); + memmove(skb->data, src, skb->len); + } else { + wl12xx_info("No handler, fixme!"); + return -EINVAL; + } + } + + /* Our skb->data at this point includes the HW header */ + len = WL12XX_TX_ALIGN(skb->len); + + if (wl->data_in_count & 0x1) + addr = wl->data_path->tx_packet_ring_addr + + wl->data_path->tx_packet_ring_chunk_size; + else + addr = wl->data_path->tx_packet_ring_addr; + + wl12xx_spi_mem_write(wl, addr, skb->data, len); + + wl12xx_debug(DEBUG_TX, "tx id %u skb 0x%p payload %u rate 0x%x", + tx_hdr->id, skb, tx_hdr->length, tx_hdr->rate); + + return 0; +} + +static void wl12xx_tx_trigger(struct wl12xx *wl) +{ + u32 data, addr; + + if (wl->data_in_count & 0x1) { + addr = ACX_REG_INTERRUPT_TRIG_H; + data = INTR_TRIG_TX_PROC1; + } else { + addr = ACX_REG_INTERRUPT_TRIG; + data = INTR_TRIG_TX_PROC0; + } + + wl12xx_reg_write32(wl, addr, data); + + /* Bumping data in */ + wl->data_in_count = (wl->data_in_count + 1) & + TX_STATUS_DATA_OUT_COUNT_MASK; +} + +/* caller must hold wl->mutex */ +static int wl12xx_tx_frame(struct wl12xx *wl, struct sk_buff *skb) +{ + struct ieee80211_tx_info *info; + int ret = 0; + u8 idx; + + info = IEEE80211_SKB_CB(skb); + + if (info->control.hw_key) { + idx = info->control.hw_key->hw_key_idx; + if (unlikely(wl->default_key != idx)) { + ret = wl12xx_acx_default_key(wl, idx); + if (ret < 0) + return ret; + } + } + + ret = wl12xx_tx_path_status(wl); + if (ret < 0) + return ret; + + ret = wl12xx_tx_fill_hdr(wl, skb, info); + if (ret < 0) + return ret; + + ret = wl12xx_tx_send_packet(wl, skb, info); + if (ret < 0) + return ret; + + wl12xx_tx_trigger(wl); + + return ret; +} + +void wl12xx_tx_work(struct work_struct *work) +{ + struct wl12xx *wl = container_of(work, struct wl12xx, tx_work); + struct sk_buff *skb; + bool woken_up = false; + int ret; + + mutex_lock(&wl->mutex); + + if (unlikely(wl->state == WL12XX_STATE_OFF)) + goto out; + + while ((skb = skb_dequeue(&wl->tx_queue))) { + if (!woken_up) { + wl12xx_ps_elp_wakeup(wl); + woken_up = true; + } + + ret = wl12xx_tx_frame(wl, skb); + if (ret == -EBUSY) { + /* firmware buffer is full, stop queues */ + wl12xx_debug(DEBUG_TX, "tx_work: fw buffer full, " + "stop queues"); + ieee80211_stop_queues(wl->hw); + wl->tx_queue_stopped = true; + skb_queue_head(&wl->tx_queue, skb); + goto out; + } else if (ret < 0) { + dev_kfree_skb(skb); + goto out; + } + } + +out: + if (woken_up) + wl12xx_ps_elp_sleep(wl); + + mutex_unlock(&wl->mutex); +} + +static const char *wl12xx_tx_parse_status(u8 status) +{ + /* 8 bit status field, one character per bit plus null */ + static char buf[9]; + int i = 0; + + memset(buf, 0, sizeof(buf)); + + if (status & TX_DMA_ERROR) + buf[i++] = 'm'; + if (status & TX_DISABLED) + buf[i++] = 'd'; + if (status & TX_RETRY_EXCEEDED) + buf[i++] = 'r'; + if (status & TX_TIMEOUT) + buf[i++] = 't'; + if (status & TX_KEY_NOT_FOUND) + buf[i++] = 'k'; + if (status & TX_ENCRYPT_FAIL) + buf[i++] = 'e'; + if (status & TX_UNAVAILABLE_PRIORITY) + buf[i++] = 'p'; + + /* bit 0 is unused apparently */ + + return buf; +} + +static void wl12xx_tx_packet_cb(struct wl12xx *wl, + struct tx_result *result) +{ + struct ieee80211_tx_info *info; + struct sk_buff *skb; + int hdrlen, ret; + u8 *frame; + + skb = wl->tx_frames[result->id]; + if (skb == NULL) { + wl12xx_error("SKB for packet %d is NULL", result->id); + return; + } + + info = IEEE80211_SKB_CB(skb); + + if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && + (result->status == TX_SUCCESS)) + info->flags |= IEEE80211_TX_STAT_ACK; + + info->status.rates[0].count = result->ack_failures + 1; + wl->stats.retry_count += result->ack_failures; + + /* + * We have to remove our private TX header before pushing + * the skb back to mac80211. + */ + frame = skb_pull(skb, sizeof(struct tx_double_buffer_desc)); + if (info->control.hw_key && + info->control.hw_key->alg == ALG_TKIP) { + hdrlen = ieee80211_get_hdrlen_from_skb(skb); + memmove(frame + WL12XX_TKIP_IV_SPACE, frame, hdrlen); + skb_pull(skb, WL12XX_TKIP_IV_SPACE); + } + + wl12xx_debug(DEBUG_TX, "tx status id %u skb 0x%p failures %u rate 0x%x" + " status 0x%x (%s)", + result->id, skb, result->ack_failures, result->rate, + result->status, wl12xx_tx_parse_status(result->status)); + + + ieee80211_tx_status(wl->hw, skb); + + wl->tx_frames[result->id] = NULL; + + if (wl->tx_queue_stopped) { + wl12xx_debug(DEBUG_TX, "cb: queue was stopped"); + + skb = skb_dequeue(&wl->tx_queue); + + /* The skb can be NULL because tx_work might have been + scheduled before the queue was stopped making the + queue empty */ + + if (skb) { + ret = wl12xx_tx_frame(wl, skb); + if (ret == -EBUSY) { + /* firmware buffer is still full */ + wl12xx_debug(DEBUG_TX, "cb: fw buffer " + "still full"); + skb_queue_head(&wl->tx_queue, skb); + return; + } else if (ret < 0) { + dev_kfree_skb(skb); + return; + } + } + + wl12xx_debug(DEBUG_TX, "cb: waking queues"); + ieee80211_wake_queues(wl->hw); + wl->tx_queue_stopped = false; + } +} + +/* Called upon reception of a TX complete interrupt */ +void wl12xx_tx_complete(struct wl12xx *wl) +{ + int i, result_index, num_complete = 0; + struct tx_result result[FW_TX_CMPLT_BLOCK_SIZE], *result_ptr; + + if (unlikely(wl->state != WL12XX_STATE_ON)) + return; + + /* First we read the result */ + wl12xx_spi_mem_read(wl, wl->data_path->tx_complete_addr, + result, sizeof(result)); + + result_index = wl->next_tx_complete; + + for (i = 0; i < ARRAY_SIZE(result); i++) { + result_ptr = &result[result_index]; + + if (result_ptr->done_1 == 1 && + result_ptr->done_2 == 1) { + wl12xx_tx_packet_cb(wl, result_ptr); + + result_ptr->done_1 = 0; + result_ptr->done_2 = 0; + + result_index = (result_index + 1) & + (FW_TX_CMPLT_BLOCK_SIZE - 1); + num_complete++; + } else { + break; + } + } + + /* Every completed frame needs to be acknowledged */ + if (num_complete) { + /* + * If we've wrapped, we have to clear + * the results in 2 steps. + */ + if (result_index > wl->next_tx_complete) { + /* Only 1 write is needed */ + wl12xx_spi_mem_write(wl, + wl->data_path->tx_complete_addr + + (wl->next_tx_complete * + sizeof(struct tx_result)), + &result[wl->next_tx_complete], + num_complete * + sizeof(struct tx_result)); + + + } else if (result_index < wl->next_tx_complete) { + /* 2 writes are needed */ + wl12xx_spi_mem_write(wl, + wl->data_path->tx_complete_addr + + (wl->next_tx_complete * + sizeof(struct tx_result)), + &result[wl->next_tx_complete], + (FW_TX_CMPLT_BLOCK_SIZE - + wl->next_tx_complete) * + sizeof(struct tx_result)); + + wl12xx_spi_mem_write(wl, + wl->data_path->tx_complete_addr, + result, + (num_complete - + FW_TX_CMPLT_BLOCK_SIZE + + wl->next_tx_complete) * + sizeof(struct tx_result)); + + } else { + /* We have to write the whole array */ + wl12xx_spi_mem_write(wl, + wl->data_path->tx_complete_addr, + result, + FW_TX_CMPLT_BLOCK_SIZE * + sizeof(struct tx_result)); + } + + } + + wl->next_tx_complete = result_index; +} + +/* caller must hold wl->mutex */ +void wl12xx_tx_flush(struct wl12xx *wl) +{ + int i; + struct sk_buff *skb; + struct ieee80211_tx_info *info; + + /* TX failure */ +/* control->flags = 0; FIXME */ + + while ((skb = skb_dequeue(&wl->tx_queue))) { + info = IEEE80211_SKB_CB(skb); + + wl12xx_debug(DEBUG_TX, "flushing skb 0x%p", skb); + + if (!(info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)) + continue; + + ieee80211_tx_status(wl->hw, skb); + } + + for (i = 0; i < FW_TX_CMPLT_BLOCK_SIZE; i++) + if (wl->tx_frames[i] != NULL) { + skb = wl->tx_frames[i]; + info = IEEE80211_SKB_CB(skb); + + if (!(info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)) + continue; + + ieee80211_tx_status(wl->hw, skb); + wl->tx_frames[i] = NULL; + } +} diff --git a/drivers/net/wireless/wl12xx/tx.h b/drivers/net/wireless/wl12xx/tx.h new file mode 100644 index 0000000..dc82691 --- /dev/null +++ b/drivers/net/wireless/wl12xx/tx.h @@ -0,0 +1,215 @@ +/* + * This file is part of wl12xx + * + * Copyright (c) 1998-2007 Texas Instruments Incorporated + * Copyright (C) 2008 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef __WL12XX_TX_H__ +#define __WL12XX_TX_H__ + +#include <linux/bitops.h> + +/* + * + * TX PATH + * + * The Tx path uses a double buffer and a tx_control structure, each located + * at a fixed address in the device's memory. On startup, the host retrieves + * the pointers to these addresses. A double buffer allows for continuous data + * flow towards the device. The host keeps track of which buffer is available + * and alternates between these two buffers on a per packet basis. + * + * The size of each of the two buffers is large enough to hold the longest + * 802.3 packet - maximum size Ethernet packet + header + descriptor. + * TX complete indication will be received a-synchronously in a TX done cyclic + * buffer which is composed of 16 tx_result descriptors structures and is used + * in a cyclic manner. + * + * The TX (HOST) procedure is as follows: + * 1. Read the Tx path status, that will give the data_out_count. + * 2. goto 1, if not possible. + * i.e. if data_in_count - data_out_count >= HwBuffer size (2 for double + * buffer). + * 3. Copy the packet (preceded by double_buffer_desc), if possible. + * i.e. if data_in_count - data_out_count < HwBuffer size (2 for double + * buffer). + * 4. increment data_in_count. + * 5. Inform the firmware by generating a firmware internal interrupt. + * 6. FW will increment data_out_count after it reads the buffer. + * + * The TX Complete procedure: + * 1. To get a TX complete indication the host enables the tx_complete flag in + * the TX descriptor Structure. + * 2. For each packet with a Tx Complete field set, the firmware adds the + * transmit results to the cyclic buffer (txDoneRing) and sets both done_1 + * and done_2 to 1 to indicate driver ownership. + * 3. The firmware sends a Tx Complete interrupt to the host to trigger the + * host to process the new data. Note: interrupt will be send per packet if + * TX complete indication was requested in tx_control or per crossing + * aggregation threshold. + * 4. After receiving the Tx Complete interrupt, the host reads the + * TxDescriptorDone information in a cyclic manner and clears both done_1 + * and done_2 fields. + * + */ + +#define TX_COMPLETE_REQUIRED_BIT 0x80 +#define TX_STATUS_DATA_OUT_COUNT_MASK 0xf +#define WL12XX_TX_ALIGN_TO 4 +#define WL12XX_TX_ALIGN(len) (((len) + WL12XX_TX_ALIGN_TO - 1) & \ + ~(WL12XX_TX_ALIGN_TO - 1)) +#define WL12XX_TKIP_IV_SPACE 4 + +struct tx_control { + /* Rate Policy (class) index */ + unsigned rate_policy:3; + + /* When set, no ack policy is expected */ + unsigned ack_policy:1; + + /* + * Packet type: + * 0 -> 802.11 + * 1 -> 802.3 + * 2 -> IP + * 3 -> raw codec + */ + unsigned packet_type:2; + + /* If set, this is a QoS-Null or QoS-Data frame */ + unsigned qos:1; + + /* + * If set, the target triggers the tx complete INT + * upon frame sending completion. + */ + unsigned tx_complete:1; + + /* 2 bytes padding before packet header */ + unsigned xfer_pad:1; + + unsigned reserved:7; +} __attribute__ ((packed)); + + +struct tx_double_buffer_desc { + /* Length of payload, including headers. */ + u16 length; + + /* + * A bit mask that specifies the initial rate to be used + * Possible values are: + * 0x0001 - 1Mbits + * 0x0002 - 2Mbits + * 0x0004 - 5.5Mbits + * 0x0008 - 6Mbits + * 0x0010 - 9Mbits + * 0x0020 - 11Mbits + * 0x0040 - 12Mbits + * 0x0080 - 18Mbits + * 0x0100 - 22Mbits + * 0x0200 - 24Mbits + * 0x0400 - 36Mbits + * 0x0800 - 48Mbits + * 0x1000 - 54Mbits + */ + u16 rate; + + /* Time in us that a packet can spend in the target */ + u32 expiry_time; + + /* index of the TX queue used for this packet */ + u8 xmit_queue; + + /* Used to identify a packet */ + u8 id; + + struct tx_control control; + + /* + * The FW should cut the packet into fragments + * of this size. + */ + u16 frag_threshold; + + /* Numbers of HW queue blocks to be allocated */ + u8 num_mem_blocks; + + u8 reserved; +} __attribute__ ((packed)); + +enum { + TX_SUCCESS = 0, + TX_DMA_ERROR = BIT(7), + TX_DISABLED = BIT(6), + TX_RETRY_EXCEEDED = BIT(5), + TX_TIMEOUT = BIT(4), + TX_KEY_NOT_FOUND = BIT(3), + TX_ENCRYPT_FAIL = BIT(2), + TX_UNAVAILABLE_PRIORITY = BIT(1), +}; + +struct tx_result { + /* + * Ownership synchronization between the host and + * the firmware. If done_1 and done_2 are cleared, + * owned by the FW (no info ready). + */ + u8 done_1; + + /* same as double_buffer_desc->id */ + u8 id; + + /* + * Total air access duration consumed by this + * packet, including all retries and overheads. + */ + u16 medium_usage; + + /* Total media delay (from 1st EDCA AIFS counter until TX Complete). */ + u32 medium_delay; + + /* Time between host xfer and tx complete */ + u32 fw_hnadling_time; + + /* The LS-byte of the last TKIP sequence number. */ + u8 lsb_seq_num; + + /* Retry count */ + u8 ack_failures; + + /* At which rate we got a ACK */ + u16 rate; + + u16 reserved; + + /* TX_* */ + u8 status; + + /* See done_1 */ + u8 done_2; +} __attribute__ ((packed)); + +void wl12xx_tx_work(struct work_struct *work); +void wl12xx_tx_complete(struct wl12xx *wl); +void wl12xx_tx_flush(struct wl12xx *wl); + +#endif diff --git a/drivers/net/wireless/wl12xx/wl1251.c b/drivers/net/wireless/wl12xx/wl1251.c new file mode 100644 index 0000000..bd0decd --- /dev/null +++ b/drivers/net/wireless/wl12xx/wl1251.c @@ -0,0 +1,709 @@ +/* + * This file is part of wl12xx + * + * Copyright (C) 2008-2009 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include <linux/kernel.h> +#include <linux/module.h> + +#include "wl1251.h" +#include "reg.h" +#include "spi.h" +#include "boot.h" +#include "event.h" +#include "acx.h" +#include "tx.h" +#include "rx.h" +#include "ps.h" +#include "init.h" + +static struct wl12xx_partition_set wl1251_part_table[PART_TABLE_LEN] = { + [PART_DOWN] = { + .mem = { + .start = 0x00000000, + .size = 0x00016800 + }, + .reg = { + .start = REGISTERS_BASE, + .size = REGISTERS_DOWN_SIZE + }, + }, + + [PART_WORK] = { + .mem = { + .start = 0x00028000, + .size = 0x00014000 + }, + .reg = { + .start = REGISTERS_BASE, + .size = REGISTERS_WORK_SIZE + }, + }, + + /* WL1251 doesn't use the DRPW partition, so we don't set it here */ +}; + +static enum wl12xx_acx_int_reg wl1251_acx_reg_table[ACX_REG_TABLE_LEN] = { + [ACX_REG_INTERRUPT_TRIG] = (REGISTERS_BASE + 0x0474), + [ACX_REG_INTERRUPT_TRIG_H] = (REGISTERS_BASE + 0x0478), + [ACX_REG_INTERRUPT_MASK] = (REGISTERS_BASE + 0x0494), + [ACX_REG_HINT_MASK_SET] = (REGISTERS_BASE + 0x0498), + [ACX_REG_HINT_MASK_CLR] = (REGISTERS_BASE + 0x049C), + [ACX_REG_INTERRUPT_NO_CLEAR] = (REGISTERS_BASE + 0x04B0), + [ACX_REG_INTERRUPT_CLEAR] = (REGISTERS_BASE + 0x04A4), + [ACX_REG_INTERRUPT_ACK] = (REGISTERS_BASE + 0x04A8), + [ACX_REG_SLV_SOFT_RESET] = (REGISTERS_BASE + 0x0000), + [ACX_REG_EE_START] = (REGISTERS_BASE + 0x080C), + [ACX_REG_ECPU_CONTROL] = (REGISTERS_BASE + 0x0804) +}; + +static int wl1251_upload_firmware(struct wl12xx *wl) +{ + struct wl12xx_partition_set *p_table = wl->chip.p_table; + int addr, chunk_num, partition_limit; + size_t fw_data_len; + u8 *p; + + /* whal_FwCtrl_LoadFwImageSm() */ + + wl12xx_debug(DEBUG_BOOT, "chip id before fw upload: 0x%x", + wl12xx_reg_read32(wl, CHIP_ID_B)); + + /* 10.0 check firmware length and set partition */ + fw_data_len = (wl->fw[4] << 24) | (wl->fw[5] << 16) | + (wl->fw[6] << 8) | (wl->fw[7]); + + wl12xx_debug(DEBUG_BOOT, "fw_data_len %d chunk_size %d", fw_data_len, + CHUNK_SIZE); + + if ((fw_data_len % 4) != 0) { + wl12xx_error("firmware length not multiple of four"); + return -EIO; + } + + wl12xx_set_partition(wl, + p_table[PART_DOWN].mem.start, + p_table[PART_DOWN].mem.size, + p_table[PART_DOWN].reg.start, + p_table[PART_DOWN].reg.size); + + /* 10.1 set partition limit and chunk num */ + chunk_num = 0; + partition_limit = p_table[PART_DOWN].mem.size; + + while (chunk_num < fw_data_len / CHUNK_SIZE) { + /* 10.2 update partition, if needed */ + addr = p_table[PART_DOWN].mem.start + + (chunk_num + 2) * CHUNK_SIZE; + if (addr > partition_limit) { + addr = p_table[PART_DOWN].mem.start + + chunk_num * CHUNK_SIZE; + partition_limit = chunk_num * CHUNK_SIZE + + p_table[PART_DOWN].mem.size; + wl12xx_set_partition(wl, + addr, + p_table[PART_DOWN].mem.size, + p_table[PART_DOWN].reg.start, + p_table[PART_DOWN].reg.size); + } + + /* 10.3 upload the chunk */ + addr = p_table[PART_DOWN].mem.start + chunk_num * CHUNK_SIZE; + p = wl->fw + FW_HDR_SIZE + chunk_num * CHUNK_SIZE; + wl12xx_debug(DEBUG_BOOT, "uploading fw chunk 0x%p to 0x%x", + p, addr); + wl12xx_spi_mem_write(wl, addr, p, CHUNK_SIZE); + + chunk_num++; + } + + /* 10.4 upload the last chunk */ + addr = p_table[PART_DOWN].mem.start + chunk_num * CHUNK_SIZE; + p = wl->fw + FW_HDR_SIZE + chunk_num * CHUNK_SIZE; + wl12xx_debug(DEBUG_BOOT, "uploading fw last chunk (%d B) 0x%p to 0x%x", + fw_data_len % CHUNK_SIZE, p, addr); + wl12xx_spi_mem_write(wl, addr, p, fw_data_len % CHUNK_SIZE); + + return 0; +} + +static int wl1251_upload_nvs(struct wl12xx *wl) +{ + size_t nvs_len, nvs_bytes_written, burst_len; + int nvs_start, i; + u32 dest_addr, val; + u8 *nvs_ptr, *nvs; + + nvs = wl->nvs; + if (nvs == NULL) + return -ENODEV; + + nvs_ptr = nvs; + + nvs_len = wl->nvs_len; + nvs_start = wl->fw_len; + + /* + * Layout before the actual NVS tables: + * 1 byte : burst length. + * 2 bytes: destination address. + * n bytes: data to burst copy. + * + * This is ended by a 0 length, then the NVS tables. + */ + + while (nvs_ptr[0]) { + burst_len = nvs_ptr[0]; + dest_addr = (nvs_ptr[1] & 0xfe) | ((u32)(nvs_ptr[2] << 8)); + + /* We move our pointer to the data */ + nvs_ptr += 3; + + for (i = 0; i < burst_len; i++) { + val = (nvs_ptr[0] | (nvs_ptr[1] << 8) + | (nvs_ptr[2] << 16) | (nvs_ptr[3] << 24)); + + wl12xx_debug(DEBUG_BOOT, + "nvs burst write 0x%x: 0x%x", + dest_addr, val); + wl12xx_mem_write32(wl, dest_addr, val); + + nvs_ptr += 4; + dest_addr += 4; + } + } + + /* + * We've reached the first zero length, the first NVS table + * is 7 bytes further. + */ + nvs_ptr += 7; + nvs_len -= nvs_ptr - nvs; + nvs_len = ALIGN(nvs_len, 4); + + /* Now we must set the partition correctly */ + wl12xx_set_partition(wl, nvs_start, + wl->chip.p_table[PART_DOWN].mem.size, + wl->chip.p_table[PART_DOWN].reg.start, + wl->chip.p_table[PART_DOWN].reg.size); + + /* And finally we upload the NVS tables */ + nvs_bytes_written = 0; + while (nvs_bytes_written < nvs_len) { + val = (nvs_ptr[0] | (nvs_ptr[1] << 8) + | (nvs_ptr[2] << 16) | (nvs_ptr[3] << 24)); + + val = cpu_to_le32(val); + + wl12xx_debug(DEBUG_BOOT, + "nvs write table 0x%x: 0x%x", + nvs_start, val); + wl12xx_mem_write32(wl, nvs_start, val); + + nvs_ptr += 4; + nvs_bytes_written += 4; + nvs_start += 4; + } + + return 0; +} + +static int wl1251_boot(struct wl12xx *wl) +{ + int ret = 0, minor_minor_e2_ver; + u32 tmp, boot_data; + + ret = wl12xx_boot_soft_reset(wl); + if (ret < 0) + goto out; + + /* 2. start processing NVS file */ + ret = wl->chip.op_upload_nvs(wl); + if (ret < 0) + goto out; + + /* write firmware's last address (ie. it's length) to + * ACX_EEPROMLESS_IND_REG */ + wl12xx_reg_write32(wl, ACX_EEPROMLESS_IND_REG, wl->fw_len); + + /* 6. read the EEPROM parameters */ + tmp = wl12xx_reg_read32(wl, SCR_PAD2); + + /* 7. read bootdata */ + wl->boot_attr.radio_type = (tmp & 0x0000FF00) >> 8; + wl->boot_attr.major = (tmp & 0x00FF0000) >> 16; + tmp = wl12xx_reg_read32(wl, SCR_PAD3); + + /* 8. check bootdata and call restart sequence */ + wl->boot_attr.minor = (tmp & 0x00FF0000) >> 16; + minor_minor_e2_ver = (tmp & 0xFF000000) >> 24; + + wl12xx_debug(DEBUG_BOOT, "radioType 0x%x majorE2Ver 0x%x " + "minorE2Ver 0x%x minor_minor_e2_ver 0x%x", + wl->boot_attr.radio_type, wl->boot_attr.major, + wl->boot_attr.minor, minor_minor_e2_ver); + + ret = wl12xx_boot_init_seq(wl); + if (ret < 0) + goto out; + + /* 9. NVS processing done */ + boot_data = wl12xx_reg_read32(wl, ACX_REG_ECPU_CONTROL); + + wl12xx_debug(DEBUG_BOOT, "halt boot_data 0x%x", boot_data); + + /* 10. check that ECPU_CONTROL_HALT bits are set in + * pWhalBus->uBootData and start uploading firmware + */ + if ((boot_data & ECPU_CONTROL_HALT) == 0) { + wl12xx_error("boot failed, ECPU_CONTROL_HALT not set"); + ret = -EIO; + goto out; + } + + ret = wl->chip.op_upload_fw(wl); + if (ret < 0) + goto out; + + /* 10.5 start firmware */ + ret = wl12xx_boot_run_firmware(wl); + if (ret < 0) + goto out; + + /* Get and save the firmware version */ + wl12xx_acx_fw_version(wl, wl->chip.fw_ver, sizeof(wl->chip.fw_ver)); + +out: + return ret; +} + +static int wl1251_mem_cfg(struct wl12xx *wl) +{ + struct wl1251_acx_config_memory mem_conf; + int ret, i; + + wl12xx_debug(DEBUG_ACX, "wl1251 mem cfg"); + + /* memory config */ + mem_conf.mem_config.num_stations = cpu_to_le16(DEFAULT_NUM_STATIONS); + mem_conf.mem_config.rx_mem_block_num = 35; + mem_conf.mem_config.tx_min_mem_block_num = 64; + mem_conf.mem_config.num_tx_queues = MAX_TX_QUEUES; + mem_conf.mem_config.host_if_options = HOSTIF_PKT_RING; + mem_conf.mem_config.num_ssid_profiles = 1; + mem_conf.mem_config.debug_buffer_size = + cpu_to_le16(TRACE_BUFFER_MAX_SIZE); + + /* RX queue config */ + mem_conf.rx_queue_config.dma_address = 0; + mem_conf.rx_queue_config.num_descs = ACX_RX_DESC_DEF; + mem_conf.rx_queue_config.priority = DEFAULT_RXQ_PRIORITY; + mem_conf.rx_queue_config.type = DEFAULT_RXQ_TYPE; + + /* TX queue config */ + for (i = 0; i < MAX_TX_QUEUES; i++) { + mem_conf.tx_queue_config[i].num_descs = ACX_TX_DESC_DEF; + mem_conf.tx_queue_config[i].attributes = i; + } + + mem_conf.header.id = ACX_MEM_CFG; + mem_conf.header.len = sizeof(struct wl1251_acx_config_memory) - + sizeof(struct acx_header); + mem_conf.header.len -= + (MAX_TX_QUEUE_CONFIGS - mem_conf.mem_config.num_tx_queues) * + sizeof(struct wl1251_acx_tx_queue_config); + + ret = wl12xx_cmd_configure(wl, &mem_conf, + sizeof(struct wl1251_acx_config_memory)); + if (ret < 0) + wl12xx_warning("wl1251 mem config failed: %d", ret); + + return ret; +} + +static int wl1251_hw_init_mem_config(struct wl12xx *wl) +{ + int ret; + + ret = wl1251_mem_cfg(wl); + if (ret < 0) + return ret; + + wl->target_mem_map = kzalloc(sizeof(struct wl1251_acx_mem_map), + GFP_KERNEL); + if (!wl->target_mem_map) { + wl12xx_error("couldn't allocate target memory map"); + return -ENOMEM; + } + + /* we now ask for the firmware built memory map */ + ret = wl12xx_acx_mem_map(wl, wl->target_mem_map, + sizeof(struct wl1251_acx_mem_map)); + if (ret < 0) { + wl12xx_error("couldn't retrieve firmware memory map"); + kfree(wl->target_mem_map); + wl->target_mem_map = NULL; + return ret; + } + + return 0; +} + +static void wl1251_set_ecpu_ctrl(struct wl12xx *wl, u32 flag) +{ + u32 cpu_ctrl; + + /* 10.5.0 run the firmware (I) */ + cpu_ctrl = wl12xx_reg_read32(wl, ACX_REG_ECPU_CONTROL); + + /* 10.5.1 run the firmware (II) */ + cpu_ctrl &= ~flag; + wl12xx_reg_write32(wl, ACX_REG_ECPU_CONTROL, cpu_ctrl); +} + +static void wl1251_target_enable_interrupts(struct wl12xx *wl) +{ + /* Enable target's interrupts */ + wl->intr_mask = WL1251_ACX_INTR_RX0_DATA | + WL1251_ACX_INTR_RX1_DATA | + WL1251_ACX_INTR_TX_RESULT | + WL1251_ACX_INTR_EVENT_A | + WL1251_ACX_INTR_EVENT_B | + WL1251_ACX_INTR_INIT_COMPLETE; + wl12xx_boot_target_enable_interrupts(wl); +} + +static void wl1251_irq_work(struct work_struct *work) +{ + u32 intr; + struct wl12xx *wl = + container_of(work, struct wl12xx, irq_work); + + mutex_lock(&wl->mutex); + + wl12xx_debug(DEBUG_IRQ, "IRQ work"); + + if (wl->state == WL12XX_STATE_OFF) + goto out; + + wl12xx_ps_elp_wakeup(wl); + + wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_MASK, WL1251_ACX_INTR_ALL); + + intr = wl12xx_reg_read32(wl, ACX_REG_INTERRUPT_CLEAR); + wl12xx_debug(DEBUG_IRQ, "intr: 0x%x", intr); + + if (wl->data_path) { + wl12xx_spi_mem_read(wl, wl->data_path->rx_control_addr, + &wl->rx_counter, sizeof(u32)); + + /* We handle a frmware bug here */ + switch ((wl->rx_counter - wl->rx_handled) & 0xf) { + case 0: + wl12xx_debug(DEBUG_IRQ, "RX: FW and host in sync"); + intr &= ~WL1251_ACX_INTR_RX0_DATA; + intr &= ~WL1251_ACX_INTR_RX1_DATA; + break; + case 1: + wl12xx_debug(DEBUG_IRQ, "RX: FW +1"); + intr |= WL1251_ACX_INTR_RX0_DATA; + intr &= ~WL1251_ACX_INTR_RX1_DATA; + break; + case 2: + wl12xx_debug(DEBUG_IRQ, "RX: FW +2"); + intr |= WL1251_ACX_INTR_RX0_DATA; + intr |= WL1251_ACX_INTR_RX1_DATA; + break; + default: + wl12xx_warning("RX: FW and host out of sync: %d", + wl->rx_counter - wl->rx_handled); + break; + } + + wl->rx_handled = wl->rx_counter; + + + wl12xx_debug(DEBUG_IRQ, "RX counter: %d", wl->rx_counter); + } + + intr &= wl->intr_mask; + + if (intr == 0) { + wl12xx_debug(DEBUG_IRQ, "INTR is 0"); + wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_MASK, + ~(wl->intr_mask)); + + goto out_sleep; + } + + if (intr & WL1251_ACX_INTR_RX0_DATA) { + wl12xx_debug(DEBUG_IRQ, "WL1251_ACX_INTR_RX0_DATA"); + wl12xx_rx(wl); + } + + if (intr & WL1251_ACX_INTR_RX1_DATA) { + wl12xx_debug(DEBUG_IRQ, "WL1251_ACX_INTR_RX1_DATA"); + wl12xx_rx(wl); + } + + if (intr & WL1251_ACX_INTR_TX_RESULT) { + wl12xx_debug(DEBUG_IRQ, "WL1251_ACX_INTR_TX_RESULT"); + wl12xx_tx_complete(wl); + } + + if (intr & (WL1251_ACX_INTR_EVENT_A | WL1251_ACX_INTR_EVENT_B)) { + wl12xx_debug(DEBUG_IRQ, "WL1251_ACX_INTR_EVENT (0x%x)", intr); + if (intr & WL1251_ACX_INTR_EVENT_A) + wl12xx_event_handle(wl, 0); + else + wl12xx_event_handle(wl, 1); + } + + if (intr & WL1251_ACX_INTR_INIT_COMPLETE) + wl12xx_debug(DEBUG_IRQ, "WL1251_ACX_INTR_INIT_COMPLETE"); + + wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_MASK, ~(wl->intr_mask)); + +out_sleep: + wl12xx_ps_elp_sleep(wl); +out: + mutex_unlock(&wl->mutex); +} + +static int wl1251_hw_init_txq_fill(u8 qid, + struct acx_tx_queue_qos_config *config, + u32 num_blocks) +{ + config->qid = qid; + + switch (qid) { + case QOS_AC_BE: + config->high_threshold = + (QOS_TX_HIGH_BE_DEF * num_blocks) / 100; + config->low_threshold = + (QOS_TX_LOW_BE_DEF * num_blocks) / 100; + break; + case QOS_AC_BK: + config->high_threshold = + (QOS_TX_HIGH_BK_DEF * num_blocks) / 100; + config->low_threshold = + (QOS_TX_LOW_BK_DEF * num_blocks) / 100; + break; + case QOS_AC_VI: + config->high_threshold = + (QOS_TX_HIGH_VI_DEF * num_blocks) / 100; + config->low_threshold = + (QOS_TX_LOW_VI_DEF * num_blocks) / 100; + break; + case QOS_AC_VO: + config->high_threshold = + (QOS_TX_HIGH_VO_DEF * num_blocks) / 100; + config->low_threshold = + (QOS_TX_LOW_VO_DEF * num_blocks) / 100; + break; + default: + wl12xx_error("Invalid TX queue id: %d", qid); + return -EINVAL; + } + + return 0; +} + +static int wl1251_hw_init_tx_queue_config(struct wl12xx *wl) +{ + struct acx_tx_queue_qos_config config; + struct wl1251_acx_mem_map *wl_mem_map = wl->target_mem_map; + int ret, i; + + wl12xx_debug(DEBUG_ACX, "acx tx queue config"); + + config.header.id = ACX_TX_QUEUE_CFG; + config.header.len = sizeof(struct acx_tx_queue_qos_config) - + sizeof(struct acx_header); + + for (i = 0; i < MAX_NUM_OF_AC; i++) { + ret = wl1251_hw_init_txq_fill(i, &config, + wl_mem_map->num_tx_mem_blocks); + if (ret < 0) + return ret; + + ret = wl12xx_cmd_configure(wl, &config, sizeof(config)); + if (ret < 0) + return ret; + } + + return 0; +} + +static int wl1251_hw_init_data_path_config(struct wl12xx *wl) +{ + int ret; + + /* asking for the data path parameters */ + wl->data_path = kzalloc(sizeof(struct acx_data_path_params_resp), + GFP_KERNEL); + if (!wl->data_path) { + wl12xx_error("Couldnt allocate data path parameters"); + return -ENOMEM; + } + + ret = wl12xx_acx_data_path_params(wl, wl->data_path); + if (ret < 0) { + kfree(wl->data_path); + wl->data_path = NULL; + return ret; + } + + return 0; +} + +static int wl1251_hw_init(struct wl12xx *wl) +{ + struct wl1251_acx_mem_map *wl_mem_map; + int ret; + + ret = wl12xx_hw_init_hwenc_config(wl); + if (ret < 0) + return ret; + + /* Template settings */ + ret = wl12xx_hw_init_templates_config(wl); + if (ret < 0) + return ret; + + /* Default memory configuration */ + ret = wl1251_hw_init_mem_config(wl); + if (ret < 0) + return ret; + + /* Default data path configuration */ + ret = wl1251_hw_init_data_path_config(wl); + if (ret < 0) + goto out_free_memmap; + + /* RX config */ + ret = wl12xx_hw_init_rx_config(wl, + RX_CFG_PROMISCUOUS | RX_CFG_TSF, + RX_FILTER_OPTION_DEF); + /* RX_CONFIG_OPTION_ANY_DST_ANY_BSS, + RX_FILTER_OPTION_FILTER_ALL); */ + if (ret < 0) + goto out_free_data_path; + + /* TX queues config */ + ret = wl1251_hw_init_tx_queue_config(wl); + if (ret < 0) + goto out_free_data_path; + + /* PHY layer config */ + ret = wl12xx_hw_init_phy_config(wl); + if (ret < 0) + goto out_free_data_path; + + /* Beacon filtering */ + ret = wl12xx_hw_init_beacon_filter(wl); + if (ret < 0) + goto out_free_data_path; + + /* Bluetooth WLAN coexistence */ + ret = wl12xx_hw_init_pta(wl); + if (ret < 0) + goto out_free_data_path; + + /* Energy detection */ + ret = wl12xx_hw_init_energy_detection(wl); + if (ret < 0) + goto out_free_data_path; + + /* Beacons and boradcast settings */ + ret = wl12xx_hw_init_beacon_broadcast(wl); + if (ret < 0) + goto out_free_data_path; + + /* Enable data path */ + ret = wl12xx_cmd_data_path(wl, wl->channel, 1); + if (ret < 0) + goto out_free_data_path; + + /* Default power state */ + ret = wl12xx_hw_init_power_auth(wl); + if (ret < 0) + goto out_free_data_path; + + wl_mem_map = wl->target_mem_map; + wl12xx_info("%d tx blocks at 0x%x, %d rx blocks at 0x%x", + wl_mem_map->num_tx_mem_blocks, + wl->data_path->tx_control_addr, + wl_mem_map->num_rx_mem_blocks, + wl->data_path->rx_control_addr); + + return 0; + + out_free_data_path: + kfree(wl->data_path); + + out_free_memmap: + kfree(wl->target_mem_map); + + return ret; +} + +static int wl1251_plt_init(struct wl12xx *wl) +{ + int ret; + + ret = wl1251_hw_init_mem_config(wl); + if (ret < 0) + return ret; + + ret = wl12xx_cmd_data_path(wl, wl->channel, 1); + if (ret < 0) + return ret; + + return 0; +} + +void wl1251_setup(struct wl12xx *wl) +{ + /* FIXME: Is it better to use strncpy here or is this ok? */ + wl->chip.fw_filename = WL1251_FW_NAME; + wl->chip.nvs_filename = WL1251_NVS_NAME; + + /* Now we know what chip we're using, so adjust the power on sleep + * time accordingly */ + wl->chip.power_on_sleep = WL1251_POWER_ON_SLEEP; + + wl->chip.intr_cmd_complete = WL1251_ACX_INTR_CMD_COMPLETE; + wl->chip.intr_init_complete = WL1251_ACX_INTR_INIT_COMPLETE; + + wl->chip.op_upload_nvs = wl1251_upload_nvs; + wl->chip.op_upload_fw = wl1251_upload_firmware; + wl->chip.op_boot = wl1251_boot; + wl->chip.op_set_ecpu_ctrl = wl1251_set_ecpu_ctrl; + wl->chip.op_target_enable_interrupts = wl1251_target_enable_interrupts; + wl->chip.op_hw_init = wl1251_hw_init; + wl->chip.op_plt_init = wl1251_plt_init; + + wl->chip.p_table = wl1251_part_table; + wl->chip.acx_reg_table = wl1251_acx_reg_table; + + INIT_WORK(&wl->irq_work, wl1251_irq_work); +} diff --git a/drivers/net/wireless/wl12xx/wl1251.h b/drivers/net/wireless/wl12xx/wl1251.h new file mode 100644 index 0000000..1f4a443 --- /dev/null +++ b/drivers/net/wireless/wl12xx/wl1251.h @@ -0,0 +1,165 @@ +/* + * This file is part of wl12xx + * + * Copyright (C) 2008 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef __WL1251_H__ +#define __WL1251_H__ + +#include <linux/bitops.h> + +#include "wl12xx.h" +#include "acx.h" + +#define WL1251_FW_NAME "wl1251-fw.bin" +#define WL1251_NVS_NAME "wl1251-nvs.bin" + +#define WL1251_POWER_ON_SLEEP 10 /* in miliseconds */ + +void wl1251_setup(struct wl12xx *wl); + + +struct wl1251_acx_memory { + __le16 num_stations; /* number of STAs to be supported. */ + u16 reserved_1; + + /* + * Nmber of memory buffers for the RX mem pool. + * The actual number may be less if there are + * not enough blocks left for the minimum num + * of TX ones. + */ + u8 rx_mem_block_num; + u8 reserved_2; + u8 num_tx_queues; /* From 1 to 16 */ + u8 host_if_options; /* HOST_IF* */ + u8 tx_min_mem_block_num; + u8 num_ssid_profiles; + __le16 debug_buffer_size; +} __attribute__ ((packed)); + + +#define ACX_RX_DESC_MIN 1 +#define ACX_RX_DESC_MAX 127 +#define ACX_RX_DESC_DEF 32 +struct wl1251_acx_rx_queue_config { + u8 num_descs; + u8 pad; + u8 type; + u8 priority; + __le32 dma_address; +} __attribute__ ((packed)); + +#define ACX_TX_DESC_MIN 1 +#define ACX_TX_DESC_MAX 127 +#define ACX_TX_DESC_DEF 16 +struct wl1251_acx_tx_queue_config { + u8 num_descs; + u8 pad[2]; + u8 attributes; +} __attribute__ ((packed)); + +#define MAX_TX_QUEUE_CONFIGS 5 +#define MAX_TX_QUEUES 4 +struct wl1251_acx_config_memory { + struct acx_header header; + + struct wl1251_acx_memory mem_config; + struct wl1251_acx_rx_queue_config rx_queue_config; + struct wl1251_acx_tx_queue_config tx_queue_config[MAX_TX_QUEUE_CONFIGS]; +} __attribute__ ((packed)); + +struct wl1251_acx_mem_map { + struct acx_header header; + + void *code_start; + void *code_end; + + void *wep_defkey_start; + void *wep_defkey_end; + + void *sta_table_start; + void *sta_table_end; + + void *packet_template_start; + void *packet_template_end; + + void *queue_memory_start; + void *queue_memory_end; + + void *packet_memory_pool_start; + void *packet_memory_pool_end; + + void *debug_buffer1_start; + void *debug_buffer1_end; + + void *debug_buffer2_start; + void *debug_buffer2_end; + + /* Number of blocks FW allocated for TX packets */ + u32 num_tx_mem_blocks; + + /* Number of blocks FW allocated for RX packets */ + u32 num_rx_mem_blocks; +} __attribute__ ((packed)); + +/************************************************************************* + + Host Interrupt Register (WiLink -> Host) + +**************************************************************************/ + +/* RX packet is ready in Xfer buffer #0 */ +#define WL1251_ACX_INTR_RX0_DATA BIT(0) + +/* TX result(s) are in the TX complete buffer */ +#define WL1251_ACX_INTR_TX_RESULT BIT(1) + +/* OBSOLETE */ +#define WL1251_ACX_INTR_TX_XFR BIT(2) + +/* RX packet is ready in Xfer buffer #1 */ +#define WL1251_ACX_INTR_RX1_DATA BIT(3) + +/* Event was entered to Event MBOX #A */ +#define WL1251_ACX_INTR_EVENT_A BIT(4) + +/* Event was entered to Event MBOX #B */ +#define WL1251_ACX_INTR_EVENT_B BIT(5) + +/* OBSOLETE */ +#define WL1251_ACX_INTR_WAKE_ON_HOST BIT(6) + +/* Trace meassge on MBOX #A */ +#define WL1251_ACX_INTR_TRACE_A BIT(7) + +/* Trace meassge on MBOX #B */ +#define WL1251_ACX_INTR_TRACE_B BIT(8) + +/* Command processing completion */ +#define WL1251_ACX_INTR_CMD_COMPLETE BIT(9) + +/* Init sequence is done */ +#define WL1251_ACX_INTR_INIT_COMPLETE BIT(14) + +#define WL1251_ACX_INTR_ALL 0xFFFFFFFF + +#endif diff --git a/drivers/net/wireless/wl12xx/wl12xx.h b/drivers/net/wireless/wl12xx/wl12xx.h new file mode 100644 index 0000000..4864143 --- /dev/null +++ b/drivers/net/wireless/wl12xx/wl12xx.h @@ -0,0 +1,409 @@ +/* + * This file is part of wl12xx + * + * Copyright (c) 1998-2007 Texas Instruments Incorporated + * Copyright (C) 2008-2009 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef __WL12XX_H__ +#define __WL12XX_H__ + +#include <linux/mutex.h> +#include <linux/list.h> +#include <linux/bitops.h> +#include <net/mac80211.h> + +#define DRIVER_NAME "wl12xx" +#define DRIVER_PREFIX DRIVER_NAME ": " + +enum { + DEBUG_NONE = 0, + DEBUG_IRQ = BIT(0), + DEBUG_SPI = BIT(1), + DEBUG_BOOT = BIT(2), + DEBUG_MAILBOX = BIT(3), + DEBUG_NETLINK = BIT(4), + DEBUG_EVENT = BIT(5), + DEBUG_TX = BIT(6), + DEBUG_RX = BIT(7), + DEBUG_SCAN = BIT(8), + DEBUG_CRYPT = BIT(9), + DEBUG_PSM = BIT(10), + DEBUG_MAC80211 = BIT(11), + DEBUG_CMD = BIT(12), + DEBUG_ACX = BIT(13), + DEBUG_ALL = ~0, +}; + +#define DEBUG_LEVEL (DEBUG_NONE) + +#define DEBUG_DUMP_LIMIT 1024 + +#define wl12xx_error(fmt, arg...) \ + printk(KERN_ERR DRIVER_PREFIX "ERROR " fmt "\n", ##arg) + +#define wl12xx_warning(fmt, arg...) \ + printk(KERN_WARNING DRIVER_PREFIX "WARNING " fmt "\n", ##arg) + +#define wl12xx_notice(fmt, arg...) \ + printk(KERN_INFO DRIVER_PREFIX fmt "\n", ##arg) + +#define wl12xx_info(fmt, arg...) \ + printk(KERN_DEBUG DRIVER_PREFIX fmt "\n", ##arg) + +#define wl12xx_debug(level, fmt, arg...) \ + do { \ + if (level & DEBUG_LEVEL) \ + printk(KERN_DEBUG DRIVER_PREFIX fmt "\n", ##arg); \ + } while (0) + +#define wl12xx_dump(level, prefix, buf, len) \ + do { \ + if (level & DEBUG_LEVEL) \ + print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \ + DUMP_PREFIX_OFFSET, 16, 1, \ + buf, \ + min_t(size_t, len, DEBUG_DUMP_LIMIT), \ + 0); \ + } while (0) + +#define wl12xx_dump_ascii(level, prefix, buf, len) \ + do { \ + if (level & DEBUG_LEVEL) \ + print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \ + DUMP_PREFIX_OFFSET, 16, 1, \ + buf, \ + min_t(size_t, len, DEBUG_DUMP_LIMIT), \ + true); \ + } while (0) + +#define WL12XX_DEFAULT_RX_CONFIG (CFG_UNI_FILTER_EN | \ + CFG_BSSID_FILTER_EN) + +#define WL12XX_DEFAULT_RX_FILTER (CFG_RX_PRSP_EN | \ + CFG_RX_MGMT_EN | \ + CFG_RX_DATA_EN | \ + CFG_RX_CTL_EN | \ + CFG_RX_BCN_EN | \ + CFG_RX_AUTH_EN | \ + CFG_RX_ASSOC_EN) + + +struct boot_attr { + u32 radio_type; + u8 mac_clock; + u8 arm_clock; + int firmware_debug; + u32 minor; + u32 major; + u32 bugfix; +}; + +enum wl12xx_state { + WL12XX_STATE_OFF, + WL12XX_STATE_ON, + WL12XX_STATE_PLT, +}; + +enum wl12xx_partition_type { + PART_DOWN, + PART_WORK, + PART_DRPW, + + PART_TABLE_LEN +}; + +struct wl12xx_partition { + u32 size; + u32 start; +}; + +struct wl12xx_partition_set { + struct wl12xx_partition mem; + struct wl12xx_partition reg; +}; + +struct wl12xx; + +/* FIXME: I'm not sure about this structure name */ +struct wl12xx_chip { + u32 id; + + const char *fw_filename; + const char *nvs_filename; + + char fw_ver[21]; + + unsigned int power_on_sleep; + int intr_cmd_complete; + int intr_init_complete; + + int (*op_upload_fw)(struct wl12xx *wl); + int (*op_upload_nvs)(struct wl12xx *wl); + int (*op_boot)(struct wl12xx *wl); + void (*op_set_ecpu_ctrl)(struct wl12xx *wl, u32 flag); + void (*op_target_enable_interrupts)(struct wl12xx *wl); + int (*op_hw_init)(struct wl12xx *wl); + int (*op_plt_init)(struct wl12xx *wl); + + struct wl12xx_partition_set *p_table; + enum wl12xx_acx_int_reg *acx_reg_table; +}; + +struct wl12xx_stats { + struct acx_statistics *fw_stats; + unsigned long fw_stats_update; + + unsigned int retry_count; + unsigned int excessive_retries; +}; + +struct wl12xx_debugfs { + struct dentry *rootdir; + struct dentry *fw_statistics; + + struct dentry *tx_internal_desc_overflow; + + struct dentry *rx_out_of_mem; + struct dentry *rx_hdr_overflow; + struct dentry *rx_hw_stuck; + struct dentry *rx_dropped; + struct dentry *rx_fcs_err; + struct dentry *rx_xfr_hint_trig; + struct dentry *rx_path_reset; + struct dentry *rx_reset_counter; + + struct dentry *dma_rx_requested; + struct dentry *dma_rx_errors; + struct dentry *dma_tx_requested; + struct dentry *dma_tx_errors; + + struct dentry *isr_cmd_cmplt; + struct dentry *isr_fiqs; + struct dentry *isr_rx_headers; + struct dentry *isr_rx_mem_overflow; + struct dentry *isr_rx_rdys; + struct dentry *isr_irqs; + struct dentry *isr_tx_procs; + struct dentry *isr_decrypt_done; + struct dentry *isr_dma0_done; + struct dentry *isr_dma1_done; + struct dentry *isr_tx_exch_complete; + struct dentry *isr_commands; + struct dentry *isr_rx_procs; + struct dentry *isr_hw_pm_mode_changes; + struct dentry *isr_host_acknowledges; + struct dentry *isr_pci_pm; + struct dentry *isr_wakeups; + struct dentry *isr_low_rssi; + + struct dentry *wep_addr_key_count; + struct dentry *wep_default_key_count; + /* skipping wep.reserved */ + struct dentry *wep_key_not_found; + struct dentry *wep_decrypt_fail; + struct dentry *wep_packets; + struct dentry *wep_interrupt; + + struct dentry *pwr_ps_enter; + struct dentry *pwr_elp_enter; + struct dentry *pwr_missing_bcns; + struct dentry *pwr_wake_on_host; + struct dentry *pwr_wake_on_timer_exp; + struct dentry *pwr_tx_with_ps; + struct dentry *pwr_tx_without_ps; + struct dentry *pwr_rcvd_beacons; + struct dentry *pwr_power_save_off; + struct dentry *pwr_enable_ps; + struct dentry *pwr_disable_ps; + struct dentry *pwr_fix_tsf_ps; + /* skipping cont_miss_bcns_spread for now */ + struct dentry *pwr_rcvd_awake_beacons; + + struct dentry *mic_rx_pkts; + struct dentry *mic_calc_failure; + + struct dentry *aes_encrypt_fail; + struct dentry *aes_decrypt_fail; + struct dentry *aes_encrypt_packets; + struct dentry *aes_decrypt_packets; + struct dentry *aes_encrypt_interrupt; + struct dentry *aes_decrypt_interrupt; + + struct dentry *event_heart_beat; + struct dentry *event_calibration; + struct dentry *event_rx_mismatch; + struct dentry *event_rx_mem_empty; + struct dentry *event_rx_pool; + struct dentry *event_oom_late; + struct dentry *event_phy_transmit_error; + struct dentry *event_tx_stuck; + + struct dentry *ps_pspoll_timeouts; + struct dentry *ps_upsd_timeouts; + struct dentry *ps_upsd_max_sptime; + struct dentry *ps_upsd_max_apturn; + struct dentry *ps_pspoll_max_apturn; + struct dentry *ps_pspoll_utilization; + struct dentry *ps_upsd_utilization; + + struct dentry *rxpipe_rx_prep_beacon_drop; + struct dentry *rxpipe_descr_host_int_trig_rx_data; + struct dentry *rxpipe_beacon_buffer_thres_host_int_trig_rx_data; + struct dentry *rxpipe_missed_beacon_host_int_trig_rx_data; + struct dentry *rxpipe_tx_xfr_host_int_trig_rx_data; + + struct dentry *tx_queue_len; + + struct dentry *retry_count; + struct dentry *excessive_retries; +}; + +struct wl12xx { + struct ieee80211_hw *hw; + bool mac80211_registered; + + struct spi_device *spi; + + void (*set_power)(bool enable); + int irq; + + enum wl12xx_state state; + struct mutex mutex; + + int physical_mem_addr; + int physical_reg_addr; + int virtual_mem_addr; + int virtual_reg_addr; + + struct wl12xx_chip chip; + + int cmd_box_addr; + int event_box_addr; + struct boot_attr boot_attr; + + u8 *fw; + size_t fw_len; + u8 *nvs; + size_t nvs_len; + + u8 bssid[ETH_ALEN]; + u8 mac_addr[ETH_ALEN]; + u8 bss_type; + u8 listen_int; + int channel; + + void *target_mem_map; + struct acx_data_path_params_resp *data_path; + + /* Number of TX packets transferred to the FW, modulo 16 */ + u32 data_in_count; + + /* Frames scheduled for transmission, not handled yet */ + struct sk_buff_head tx_queue; + bool tx_queue_stopped; + + struct work_struct tx_work; + struct work_struct filter_work; + + /* Pending TX frames */ + struct sk_buff *tx_frames[16]; + + /* + * Index pointing to the next TX complete entry + * in the cyclic XT complete array we get from + * the FW. + */ + u32 next_tx_complete; + + /* FW Rx counter */ + u32 rx_counter; + + /* Rx frames handled */ + u32 rx_handled; + + /* Current double buffer */ + u32 rx_current_buffer; + u32 rx_last_id; + + /* The target interrupt mask */ + u32 intr_mask; + struct work_struct irq_work; + + /* The mbox event mask */ + u32 event_mask; + + /* Mailbox pointers */ + u32 mbox_ptr[2]; + + /* Are we currently scanning */ + bool scanning; + + /* Our association ID */ + u16 aid; + + /* Default key (for WEP) */ + u32 default_key; + + unsigned int tx_mgmt_frm_rate; + unsigned int tx_mgmt_frm_mod; + + unsigned int rx_config; + unsigned int rx_filter; + + /* is firmware in elp mode */ + bool elp; + + /* we can be in psm, but not in elp, we have to differentiate */ + bool psm; + + /* PSM mode requested */ + bool psm_requested; + + /* in dBm */ + int power_level; + + struct wl12xx_stats stats; + struct wl12xx_debugfs debugfs; +}; + +int wl12xx_plt_start(struct wl12xx *wl); +int wl12xx_plt_stop(struct wl12xx *wl); + +#define DEFAULT_HW_GEN_MODULATION_TYPE CCK_LONG /* Long Preamble */ +#define DEFAULT_HW_GEN_TX_RATE RATE_2MBPS +#define JOIN_TIMEOUT 5000 /* 5000 milliseconds to join */ + +#define WL12XX_DEFAULT_POWER_LEVEL 20 + +#define WL12XX_TX_QUEUE_MAX_LENGTH 20 + +/* Different chips need different sleep times after power on. WL1271 needs + * 200ms, WL1251 needs only 10ms. By default we use 200ms, but as soon as we + * know the chip ID, we change the sleep value in the wl12xx chip structure, + * so in subsequent power ons, we don't waste more time then needed. */ +#define WL12XX_DEFAULT_POWER_ON_SLEEP 200 + +#define CHIP_ID_1251_PG10 (0x7010101) +#define CHIP_ID_1251_PG11 (0x7020101) +#define CHIP_ID_1251_PG12 (0x7030101) +#define CHIP_ID_1271_PG10 (0x4030101) + +#endif diff --git a/drivers/net/wireless/wl12xx/wl12xx_80211.h b/drivers/net/wireless/wl12xx/wl12xx_80211.h new file mode 100644 index 0000000..657c2db --- /dev/null +++ b/drivers/net/wireless/wl12xx/wl12xx_80211.h @@ -0,0 +1,156 @@ +#ifndef __WL12XX_80211_H__ +#define __WL12XX_80211_H__ + +#include <linux/if_ether.h> /* ETH_ALEN */ + +/* RATES */ +#define IEEE80211_CCK_RATE_1MB 0x02 +#define IEEE80211_CCK_RATE_2MB 0x04 +#define IEEE80211_CCK_RATE_5MB 0x0B +#define IEEE80211_CCK_RATE_11MB 0x16 +#define IEEE80211_OFDM_RATE_6MB 0x0C +#define IEEE80211_OFDM_RATE_9MB 0x12 +#define IEEE80211_OFDM_RATE_12MB 0x18 +#define IEEE80211_OFDM_RATE_18MB 0x24 +#define IEEE80211_OFDM_RATE_24MB 0x30 +#define IEEE80211_OFDM_RATE_36MB 0x48 +#define IEEE80211_OFDM_RATE_48MB 0x60 +#define IEEE80211_OFDM_RATE_54MB 0x6C +#define IEEE80211_BASIC_RATE_MASK 0x80 + +#define IEEE80211_CCK_RATE_1MB_MASK (1<<0) +#define IEEE80211_CCK_RATE_2MB_MASK (1<<1) +#define IEEE80211_CCK_RATE_5MB_MASK (1<<2) +#define IEEE80211_CCK_RATE_11MB_MASK (1<<3) +#define IEEE80211_OFDM_RATE_6MB_MASK (1<<4) +#define IEEE80211_OFDM_RATE_9MB_MASK (1<<5) +#define IEEE80211_OFDM_RATE_12MB_MASK (1<<6) +#define IEEE80211_OFDM_RATE_18MB_MASK (1<<7) +#define IEEE80211_OFDM_RATE_24MB_MASK (1<<8) +#define IEEE80211_OFDM_RATE_36MB_MASK (1<<9) +#define IEEE80211_OFDM_RATE_48MB_MASK (1<<10) +#define IEEE80211_OFDM_RATE_54MB_MASK (1<<11) + +#define IEEE80211_CCK_RATES_MASK 0x0000000F +#define IEEE80211_CCK_BASIC_RATES_MASK (IEEE80211_CCK_RATE_1MB_MASK | \ + IEEE80211_CCK_RATE_2MB_MASK) +#define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \ + IEEE80211_CCK_RATE_5MB_MASK | \ + IEEE80211_CCK_RATE_11MB_MASK) + +#define IEEE80211_OFDM_RATES_MASK 0x00000FF0 +#define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \ + IEEE80211_OFDM_RATE_12MB_MASK | \ + IEEE80211_OFDM_RATE_24MB_MASK) +#define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \ + IEEE80211_OFDM_RATE_9MB_MASK | \ + IEEE80211_OFDM_RATE_18MB_MASK | \ + IEEE80211_OFDM_RATE_36MB_MASK | \ + IEEE80211_OFDM_RATE_48MB_MASK | \ + IEEE80211_OFDM_RATE_54MB_MASK) +#define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \ + IEEE80211_CCK_DEFAULT_RATES_MASK) + + +/* This really should be 8, but not for our firmware */ +#define MAX_SUPPORTED_RATES 32 +#define COUNTRY_STRING_LEN 3 +#define MAX_COUNTRY_TRIPLETS 32 + +/* Headers */ +struct ieee80211_header { + __le16 frame_ctl; + __le16 duration_id; + u8 da[ETH_ALEN]; + u8 sa[ETH_ALEN]; + u8 bssid[ETH_ALEN]; + __le16 seq_ctl; + u8 payload[0]; +} __attribute__ ((packed)); + +struct wl12xx_ie_header { + u8 id; + u8 len; +} __attribute__ ((packed)); + +/* IEs */ + +struct wl12xx_ie_ssid { + struct wl12xx_ie_header header; + char ssid[IW_ESSID_MAX_SIZE]; +} __attribute__ ((packed)); + +struct wl12xx_ie_rates { + struct wl12xx_ie_header header; + u8 rates[MAX_SUPPORTED_RATES]; +} __attribute__ ((packed)); + +struct wl12xx_ie_ds_params { + struct wl12xx_ie_header header; + u8 channel; +} __attribute__ ((packed)); + +struct country_triplet { + u8 channel; + u8 num_channels; + u8 max_tx_power; +} __attribute__ ((packed)); + +struct wl12xx_ie_country { + struct wl12xx_ie_header header; + u8 country_string[COUNTRY_STRING_LEN]; + struct country_triplet triplets[MAX_COUNTRY_TRIPLETS]; +} __attribute__ ((packed)); + + +/* Templates */ + +struct wl12xx_beacon_template { + struct ieee80211_header header; + __le32 time_stamp[2]; + __le16 beacon_interval; + __le16 capability; + struct wl12xx_ie_ssid ssid; + struct wl12xx_ie_rates rates; + struct wl12xx_ie_rates ext_rates; + struct wl12xx_ie_ds_params ds_params; + struct wl12xx_ie_country country; +} __attribute__ ((packed)); + +struct wl12xx_null_data_template { + struct ieee80211_header header; +} __attribute__ ((packed)); + +struct wl12xx_ps_poll_template { + u16 fc; + u16 aid; + u8 bssid[ETH_ALEN]; + u8 ta[ETH_ALEN]; +} __attribute__ ((packed)); + +struct wl12xx_qos_null_data_template { + struct ieee80211_header header; + __le16 qos_ctl; +} __attribute__ ((packed)); + +struct wl12xx_probe_req_template { + struct ieee80211_header header; + struct wl12xx_ie_ssid ssid; + struct wl12xx_ie_rates rates; + struct wl12xx_ie_rates ext_rates; +} __attribute__ ((packed)); + + +struct wl12xx_probe_resp_template { + struct ieee80211_header header; + __le32 time_stamp[2]; + __le16 beacon_interval; + __le16 capability; + struct wl12xx_ie_ssid ssid; + struct wl12xx_ie_rates rates; + struct wl12xx_ie_rates ext_rates; + struct wl12xx_ie_ds_params ds_params; + struct wl12xx_ie_country country; +} __attribute__ ((packed)); + +#endif diff --git a/include/linux/spi/wl12xx.h b/include/linux/spi/wl12xx.h new file mode 100644 index 0000000..11430ca --- /dev/null +++ b/include/linux/spi/wl12xx.h @@ -0,0 +1,31 @@ +/* + * This file is part of wl12xx + * + * Copyright (C) 2009 Nokia Corporation + * + * Contact: Kalle Valo <kalle.valo@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef _LINUX_SPI_WL12XX_H +#define _LINUX_SPI_WL12XX_H + +struct wl12xx_platform_data { + void (*set_power)(bool enable); +}; + +#endif |