diff options
Diffstat (limited to 'drivers/net/wireless/p54/p54common.c')
| -rw-r--r-- | drivers/net/wireless/p54/p54common.c | 2688 |
1 files changed, 0 insertions, 2688 deletions
diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c deleted file mode 100644 index 22ca122..0000000 --- a/drivers/net/wireless/p54/p54common.c +++ /dev/null @@ -1,2688 +0,0 @@ -/* - * Common code for mac80211 Prism54 drivers - * - * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net> - * Copyright (c) 2007, Christian Lamparter <chunkeey@web.de> - * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> - * - * Based on: - * - the islsm (softmac prism54) driver, which is: - * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al. - * - stlc45xx driver - * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies). - * - * 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. - */ - -#include <linux/init.h> -#include <linux/firmware.h> -#include <linux/etherdevice.h> - -#include <net/mac80211.h> -#ifdef CONFIG_P54_LEDS -#include <linux/leds.h> -#endif /* CONFIG_P54_LEDS */ - -#include "p54.h" -#include "p54common.h" - -static int modparam_nohwcrypt; -module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO); -MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption."); -MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>"); -MODULE_DESCRIPTION("Softmac Prism54 common code"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("prism54common"); - -static struct ieee80211_rate p54_bgrates[] = { - { .bitrate = 10, .hw_value = 0, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, - { .bitrate = 20, .hw_value = 1, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, - { .bitrate = 55, .hw_value = 2, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, - { .bitrate = 110, .hw_value = 3, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, - { .bitrate = 60, .hw_value = 4, }, - { .bitrate = 90, .hw_value = 5, }, - { .bitrate = 120, .hw_value = 6, }, - { .bitrate = 180, .hw_value = 7, }, - { .bitrate = 240, .hw_value = 8, }, - { .bitrate = 360, .hw_value = 9, }, - { .bitrate = 480, .hw_value = 10, }, - { .bitrate = 540, .hw_value = 11, }, -}; - -static struct ieee80211_channel p54_bgchannels[] = { - { .center_freq = 2412, .hw_value = 1, }, - { .center_freq = 2417, .hw_value = 2, }, - { .center_freq = 2422, .hw_value = 3, }, - { .center_freq = 2427, .hw_value = 4, }, - { .center_freq = 2432, .hw_value = 5, }, - { .center_freq = 2437, .hw_value = 6, }, - { .center_freq = 2442, .hw_value = 7, }, - { .center_freq = 2447, .hw_value = 8, }, - { .center_freq = 2452, .hw_value = 9, }, - { .center_freq = 2457, .hw_value = 10, }, - { .center_freq = 2462, .hw_value = 11, }, - { .center_freq = 2467, .hw_value = 12, }, - { .center_freq = 2472, .hw_value = 13, }, - { .center_freq = 2484, .hw_value = 14, }, -}; - -static struct ieee80211_supported_band band_2GHz = { - .channels = p54_bgchannels, - .n_channels = ARRAY_SIZE(p54_bgchannels), - .bitrates = p54_bgrates, - .n_bitrates = ARRAY_SIZE(p54_bgrates), -}; - -static struct ieee80211_rate p54_arates[] = { - { .bitrate = 60, .hw_value = 4, }, - { .bitrate = 90, .hw_value = 5, }, - { .bitrate = 120, .hw_value = 6, }, - { .bitrate = 180, .hw_value = 7, }, - { .bitrate = 240, .hw_value = 8, }, - { .bitrate = 360, .hw_value = 9, }, - { .bitrate = 480, .hw_value = 10, }, - { .bitrate = 540, .hw_value = 11, }, -}; - -static struct ieee80211_channel p54_achannels[] = { - { .center_freq = 4920 }, - { .center_freq = 4940 }, - { .center_freq = 4960 }, - { .center_freq = 4980 }, - { .center_freq = 5040 }, - { .center_freq = 5060 }, - { .center_freq = 5080 }, - { .center_freq = 5170 }, - { .center_freq = 5180 }, - { .center_freq = 5190 }, - { .center_freq = 5200 }, - { .center_freq = 5210 }, - { .center_freq = 5220 }, - { .center_freq = 5230 }, - { .center_freq = 5240 }, - { .center_freq = 5260 }, - { .center_freq = 5280 }, - { .center_freq = 5300 }, - { .center_freq = 5320 }, - { .center_freq = 5500 }, - { .center_freq = 5520 }, - { .center_freq = 5540 }, - { .center_freq = 5560 }, - { .center_freq = 5580 }, - { .center_freq = 5600 }, - { .center_freq = 5620 }, - { .center_freq = 5640 }, - { .center_freq = 5660 }, - { .center_freq = 5680 }, - { .center_freq = 5700 }, - { .center_freq = 5745 }, - { .center_freq = 5765 }, - { .center_freq = 5785 }, - { .center_freq = 5805 }, - { .center_freq = 5825 }, -}; - -static struct ieee80211_supported_band band_5GHz = { - .channels = p54_achannels, - .n_channels = ARRAY_SIZE(p54_achannels), - .bitrates = p54_arates, - .n_bitrates = ARRAY_SIZE(p54_arates), -}; - -int p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw) -{ - struct p54_common *priv = dev->priv; - struct bootrec_exp_if *exp_if; - struct bootrec *bootrec; - u32 *data = (u32 *)fw->data; - u32 *end_data = (u32 *)fw->data + (fw->size >> 2); - u8 *fw_version = NULL; - size_t len; - int i; - int maxlen; - - if (priv->rx_start) - return 0; - - while (data < end_data && *data) - data++; - - while (data < end_data && !*data) - data++; - - bootrec = (struct bootrec *) data; - - while (bootrec->data <= end_data && - (bootrec->data + (len = le32_to_cpu(bootrec->len))) <= end_data) { - u32 code = le32_to_cpu(bootrec->code); - switch (code) { - case BR_CODE_COMPONENT_ID: - priv->fw_interface = be32_to_cpup((__be32 *) - bootrec->data); - switch (priv->fw_interface) { - case FW_LM86: - case FW_LM20: - case FW_LM87: { - char *iftype = (char *)bootrec->data; - printk(KERN_INFO "%s: p54 detected a LM%c%c " - "firmware\n", - wiphy_name(dev->wiphy), - iftype[2], iftype[3]); - break; - } - case FW_FMAC: - default: - printk(KERN_ERR "%s: unsupported firmware\n", - wiphy_name(dev->wiphy)); - return -ENODEV; - } - break; - case BR_CODE_COMPONENT_VERSION: - /* 24 bytes should be enough for all firmwares */ - if (strnlen((unsigned char*)bootrec->data, 24) < 24) - fw_version = (unsigned char*)bootrec->data; - break; - case BR_CODE_DESCR: { - struct bootrec_desc *desc = - (struct bootrec_desc *)bootrec->data; - priv->rx_start = le32_to_cpu(desc->rx_start); - /* FIXME add sanity checking */ - priv->rx_end = le32_to_cpu(desc->rx_end) - 0x3500; - priv->headroom = desc->headroom; - priv->tailroom = desc->tailroom; - priv->privacy_caps = desc->privacy_caps; - priv->rx_keycache_size = desc->rx_keycache_size; - if (le32_to_cpu(bootrec->len) == 11) - priv->rx_mtu = le16_to_cpu(desc->rx_mtu); - else - priv->rx_mtu = (size_t) - 0x620 - priv->tx_hdr_len; - maxlen = priv->tx_hdr_len + /* USB devices */ - sizeof(struct p54_rx_data) + - 4 + /* rx alignment */ - IEEE80211_MAX_FRAG_THRESHOLD; - if (priv->rx_mtu > maxlen && PAGE_SIZE == 4096) { - printk(KERN_INFO "p54: rx_mtu reduced from %d " - "to %d\n", priv->rx_mtu, - maxlen); - priv->rx_mtu = maxlen; - } - break; - } - case BR_CODE_EXPOSED_IF: - exp_if = (struct bootrec_exp_if *) bootrec->data; - for (i = 0; i < (len * sizeof(*exp_if) / 4); i++) - if (exp_if[i].if_id == cpu_to_le16(0x1a)) - priv->fw_var = le16_to_cpu(exp_if[i].variant); - break; - case BR_CODE_DEPENDENT_IF: - break; - case BR_CODE_END_OF_BRA: - case LEGACY_BR_CODE_END_OF_BRA: - end_data = NULL; - break; - default: - break; - } - bootrec = (struct bootrec *)&bootrec->data[len]; - } - - if (fw_version) - printk(KERN_INFO "%s: FW rev %s - Softmac protocol %x.%x\n", - wiphy_name(dev->wiphy), fw_version, - priv->fw_var >> 8, priv->fw_var & 0xff); - - if (priv->fw_var < 0x500) - printk(KERN_INFO "%s: you are using an obsolete firmware. " - "visit http://wireless.kernel.org/en/users/Drivers/p54 " - "and grab one for \"kernel >= 2.6.28\"!\n", - wiphy_name(dev->wiphy)); - - if (priv->fw_var >= 0x300) { - /* Firmware supports QoS, use it! */ - priv->tx_stats[P54_QUEUE_AC_VO].limit = 3; - priv->tx_stats[P54_QUEUE_AC_VI].limit = 4; - priv->tx_stats[P54_QUEUE_AC_BE].limit = 3; - priv->tx_stats[P54_QUEUE_AC_BK].limit = 2; - dev->queues = P54_QUEUE_AC_NUM; - } - - if (!modparam_nohwcrypt) { - printk(KERN_INFO "%s: cryptographic accelerator " - "WEP:%s, TKIP:%s, CCMP:%s\n", - wiphy_name(dev->wiphy), - (priv->privacy_caps & BR_DESC_PRIV_CAP_WEP) ? "YES" : - "no", (priv->privacy_caps & (BR_DESC_PRIV_CAP_TKIP | - BR_DESC_PRIV_CAP_MICHAEL)) ? "YES" : "no", - (priv->privacy_caps & BR_DESC_PRIV_CAP_AESCCMP) ? - "YES" : "no"); - - if (priv->rx_keycache_size) { - /* - * NOTE: - * - * The firmware provides at most 255 (0 - 254) slots - * for keys which are then used to offload decryption. - * As a result the 255 entry (aka 0xff) can be used - * safely by the driver to mark keys that didn't fit - * into the full cache. This trick saves us from - * keeping a extra list for uploaded keys. - */ - - priv->used_rxkeys = kzalloc(BITS_TO_LONGS( - priv->rx_keycache_size), GFP_KERNEL); - - if (!priv->used_rxkeys) - return -ENOMEM; - } - } - - return 0; -} -EXPORT_SYMBOL_GPL(p54_parse_firmware); - -static int p54_convert_rev0(struct ieee80211_hw *dev, - struct pda_pa_curve_data *curve_data) -{ - struct p54_common *priv = dev->priv; - struct p54_pa_curve_data_sample *dst; - struct pda_pa_curve_data_sample_rev0 *src; - size_t cd_len = sizeof(*curve_data) + - (curve_data->points_per_channel*sizeof(*dst) + 2) * - curve_data->channels; - unsigned int i, j; - void *source, *target; - - priv->curve_data = kmalloc(sizeof(*priv->curve_data) + cd_len, - GFP_KERNEL); - if (!priv->curve_data) - return -ENOMEM; - - priv->curve_data->entries = curve_data->channels; - priv->curve_data->entry_size = sizeof(__le16) + - sizeof(*dst) * curve_data->points_per_channel; - priv->curve_data->offset = offsetof(struct pda_pa_curve_data, data); - priv->curve_data->len = cd_len; - memcpy(priv->curve_data->data, curve_data, sizeof(*curve_data)); - source = curve_data->data; - target = ((struct pda_pa_curve_data *) priv->curve_data->data)->data; - for (i = 0; i < curve_data->channels; i++) { - __le16 *freq = source; - source += sizeof(__le16); - *((__le16 *)target) = *freq; - target += sizeof(__le16); - for (j = 0; j < curve_data->points_per_channel; j++) { - dst = target; - src = source; - - dst->rf_power = src->rf_power; - dst->pa_detector = src->pa_detector; - dst->data_64qam = src->pcv; - /* "invent" the points for the other modulations */ -#define SUB(x,y) (u8)((x) - (y)) > (x) ? 0 : (x) - (y) - dst->data_16qam = SUB(src->pcv, 12); - dst->data_qpsk = SUB(dst->data_16qam, 12); - dst->data_bpsk = SUB(dst->data_qpsk, 12); - dst->data_barker = SUB(dst->data_bpsk, 14); -#undef SUB - target += sizeof(*dst); - source += sizeof(*src); - } - } - - return 0; -} - -static int p54_convert_rev1(struct ieee80211_hw *dev, - struct pda_pa_curve_data *curve_data) -{ - struct p54_common *priv = dev->priv; - struct p54_pa_curve_data_sample *dst; - struct pda_pa_curve_data_sample_rev1 *src; - size_t cd_len = sizeof(*curve_data) + - (curve_data->points_per_channel*sizeof(*dst) + 2) * - curve_data->channels; - unsigned int i, j; - void *source, *target; - - priv->curve_data = kzalloc(cd_len + sizeof(*priv->curve_data), - GFP_KERNEL); - if (!priv->curve_data) - return -ENOMEM; - - priv->curve_data->entries = curve_data->channels; - priv->curve_data->entry_size = sizeof(__le16) + - sizeof(*dst) * curve_data->points_per_channel; - priv->curve_data->offset = offsetof(struct pda_pa_curve_data, data); - priv->curve_data->len = cd_len; - memcpy(priv->curve_data->data, curve_data, sizeof(*curve_data)); - source = curve_data->data; - target = ((struct pda_pa_curve_data *) priv->curve_data->data)->data; - for (i = 0; i < curve_data->channels; i++) { - __le16 *freq = source; - source += sizeof(__le16); - *((__le16 *)target) = *freq; - target += sizeof(__le16); - for (j = 0; j < curve_data->points_per_channel; j++) { - memcpy(target, source, sizeof(*src)); - - target += sizeof(*dst); - source += sizeof(*src); - } - source++; - } - - return 0; -} - -static const char *p54_rf_chips[] = { "NULL", "Duette3", "Duette2", - "Frisbee", "Xbow", "Longbow", "NULL", "NULL" }; -static int p54_init_xbow_synth(struct ieee80211_hw *dev); - -static void p54_parse_rssical(struct ieee80211_hw *dev, void *data, int len, - u16 type) -{ - struct p54_common *priv = dev->priv; - int offset = (type == PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED) ? 2 : 0; - int entry_size = sizeof(struct pda_rssi_cal_entry) + offset; - int num_entries = (type == PDR_RSSI_LINEAR_APPROXIMATION) ? 1 : 2; - int i; - - if (len != (entry_size * num_entries)) { - printk(KERN_ERR "%s: unknown rssi calibration data packing " - " type:(%x) len:%d.\n", - wiphy_name(dev->wiphy), type, len); - - print_hex_dump_bytes("rssical:", DUMP_PREFIX_NONE, - data, len); - - printk(KERN_ERR "%s: please report this issue.\n", - wiphy_name(dev->wiphy)); - return; - } - - for (i = 0; i < num_entries; i++) { - struct pda_rssi_cal_entry *cal = data + - (offset + i * entry_size); - priv->rssical_db[i].mul = (s16) le16_to_cpu(cal->mul); - priv->rssical_db[i].add = (s16) le16_to_cpu(cal->add); - } -} - -static void p54_parse_default_country(struct ieee80211_hw *dev, - void *data, int len) -{ - struct pda_country *country; - - if (len != sizeof(*country)) { - printk(KERN_ERR "%s: found possible invalid default country " - "eeprom entry. (entry size: %d)\n", - wiphy_name(dev->wiphy), len); - - print_hex_dump_bytes("country:", DUMP_PREFIX_NONE, - data, len); - - printk(KERN_ERR "%s: please report this issue.\n", - wiphy_name(dev->wiphy)); - return; - } - - country = (struct pda_country *) data; - if (country->flags == PDR_COUNTRY_CERT_CODE_PSEUDO) - regulatory_hint(dev->wiphy, country->alpha2); - else { - /* TODO: - * write a shared/common function that converts - * "Regulatory domain codes" (802.11-2007 14.8.2.2) - * into ISO/IEC 3166-1 alpha2 for regulatory_hint. - */ - } -} - -static int p54_convert_output_limits(struct ieee80211_hw *dev, - u8 *data, size_t len) -{ - struct p54_common *priv = dev->priv; - - if (len < 2) - return -EINVAL; - - if (data[0] != 0) { - printk(KERN_ERR "%s: unknown output power db revision:%x\n", - wiphy_name(dev->wiphy), data[0]); - return -EINVAL; - } - - if (2 + data[1] * sizeof(struct pda_channel_output_limit) > len) - return -EINVAL; - - priv->output_limit = kmalloc(data[1] * - sizeof(struct pda_channel_output_limit) + - sizeof(*priv->output_limit), GFP_KERNEL); - - if (!priv->output_limit) - return -ENOMEM; - - priv->output_limit->offset = 0; - priv->output_limit->entries = data[1]; - priv->output_limit->entry_size = - sizeof(struct pda_channel_output_limit); - priv->output_limit->len = priv->output_limit->entry_size * - priv->output_limit->entries + - priv->output_limit->offset; - - memcpy(priv->output_limit->data, &data[2], - data[1] * sizeof(struct pda_channel_output_limit)); - - return 0; -} - -static struct p54_cal_database *p54_convert_db(struct pda_custom_wrapper *src, - size_t total_len) -{ - struct p54_cal_database *dst; - size_t payload_len, entries, entry_size, offset; - - payload_len = le16_to_cpu(src->len); - entries = le16_to_cpu(src->entries); - entry_size = le16_to_cpu(src->entry_size); - offset = le16_to_cpu(src->offset); - if (((entries * entry_size + offset) != payload_len) || - (payload_len + sizeof(*src) != total_len)) - return NULL; - - dst = kmalloc(sizeof(*dst) + payload_len, GFP_KERNEL); - if (!dst) - return NULL; - - dst->entries = entries; - dst->entry_size = entry_size; - dst->offset = offset; - dst->len = payload_len; - - memcpy(dst->data, src->data, payload_len); - return dst; -} - -int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len) -{ - struct p54_common *priv = dev->priv; - struct eeprom_pda_wrap *wrap = NULL; - struct pda_entry *entry; - unsigned int data_len, entry_len; - void *tmp; - int err; - u8 *end = (u8 *)eeprom + len; - u16 synth = 0; - - wrap = (struct eeprom_pda_wrap *) eeprom; - entry = (void *)wrap->data + le16_to_cpu(wrap->len); - - /* verify that at least the entry length/code fits */ - while ((u8 *)entry <= end - sizeof(*entry)) { - entry_len = le16_to_cpu(entry->len); - data_len = ((entry_len - 1) << 1); - - /* abort if entry exceeds whole structure */ - if ((u8 *)entry + sizeof(*entry) + data_len > end) - break; - - switch (le16_to_cpu(entry->code)) { - case PDR_MAC_ADDRESS: - if (data_len != ETH_ALEN) - break; - SET_IEEE80211_PERM_ADDR(dev, entry->data); - break; - case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS: - if (priv->output_limit) - break; - err = p54_convert_output_limits(dev, entry->data, - data_len); - if (err) - goto err; - break; - case PDR_PRISM_PA_CAL_CURVE_DATA: { - struct pda_pa_curve_data *curve_data = - (struct pda_pa_curve_data *)entry->data; - if (data_len < sizeof(*curve_data)) { - err = -EINVAL; - goto err; - } - - switch (curve_data->cal_method_rev) { - case 0: - err = p54_convert_rev0(dev, curve_data); - break; - case 1: - err = p54_convert_rev1(dev, curve_data); - break; - default: - printk(KERN_ERR "%s: unknown curve data " - "revision %d\n", - wiphy_name(dev->wiphy), - curve_data->cal_method_rev); - err = -ENODEV; - break; - } - if (err) - goto err; - } - break; - case PDR_PRISM_ZIF_TX_IQ_CALIBRATION: - priv->iq_autocal = kmalloc(data_len, GFP_KERNEL); - if (!priv->iq_autocal) { - err = -ENOMEM; - goto err; - } - - memcpy(priv->iq_autocal, entry->data, data_len); - priv->iq_autocal_len = data_len / sizeof(struct pda_iq_autocal_entry); - break; - case PDR_DEFAULT_COUNTRY: - p54_parse_default_country(dev, entry->data, data_len); - break; - case PDR_INTERFACE_LIST: - tmp = entry->data; - while ((u8 *)tmp < entry->data + data_len) { - struct bootrec_exp_if *exp_if = tmp; - if (le16_to_cpu(exp_if->if_id) == 0xf) - synth = le16_to_cpu(exp_if->variant); - tmp += sizeof(struct bootrec_exp_if); - } - break; - case PDR_HARDWARE_PLATFORM_COMPONENT_ID: - if (data_len < 2) - break; - priv->version = *(u8 *)(entry->data + 1); - break; - case PDR_RSSI_LINEAR_APPROXIMATION: - case PDR_RSSI_LINEAR_APPROXIMATION_DUAL_BAND: - case PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED: - p54_parse_rssical(dev, entry->data, data_len, - le16_to_cpu(entry->code)); - break; - case PDR_RSSI_LINEAR_APPROXIMATION_CUSTOM: { - __le16 *src = (void *) entry->data; - s16 *dst = (void *) &priv->rssical_db; - int i; - - if (data_len != sizeof(priv->rssical_db)) { - err = -EINVAL; - goto err; - } - for (i = 0; i < sizeof(priv->rssical_db) / - sizeof(*src); i++) - *(dst++) = (s16) le16_to_cpu(*(src++)); - } - break; - case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS_CUSTOM: { - struct pda_custom_wrapper *pda = (void *) entry->data; - if (priv->output_limit || data_len < sizeof(*pda)) - break; - priv->output_limit = p54_convert_db(pda, data_len); - } - break; - case PDR_PRISM_PA_CAL_CURVE_DATA_CUSTOM: { - struct pda_custom_wrapper *pda = (void *) entry->data; - if (priv->curve_data || data_len < sizeof(*pda)) - break; - priv->curve_data = p54_convert_db(pda, data_len); - } - break; - case PDR_END: - /* make it overrun */ - entry_len = len; - break; - case PDR_MANUFACTURING_PART_NUMBER: - case PDR_PDA_VERSION: - case PDR_NIC_SERIAL_NUMBER: - case PDR_REGULATORY_DOMAIN_LIST: - case PDR_TEMPERATURE_TYPE: - case PDR_PRISM_PCI_IDENTIFIER: - case PDR_COUNTRY_INFORMATION: - case PDR_OEM_NAME: - case PDR_PRODUCT_NAME: - case PDR_UTF8_OEM_NAME: - case PDR_UTF8_PRODUCT_NAME: - case PDR_COUNTRY_LIST: - case PDR_ANTENNA_GAIN: - case PDR_PRISM_INDIGO_PA_CALIBRATION_DATA: - case PDR_REGULATORY_POWER_LIMITS: - case PDR_RADIATED_TRANSMISSION_CORRECTION: - case PDR_PRISM_TX_IQ_CALIBRATION: - case PDR_BASEBAND_REGISTERS: - case PDR_PER_CHANNEL_BASEBAND_REGISTERS: - break; - default: - printk(KERN_INFO "%s: unknown eeprom code : 0x%x\n", - wiphy_name(dev->wiphy), - le16_to_cpu(entry->code)); - break; - } - - entry = (void *)entry + (entry_len + 1)*2; - } - - if (!synth || !priv->iq_autocal || !priv->output_limit || - !priv->curve_data) { - printk(KERN_ERR "%s: not all required entries found in eeprom!\n", - wiphy_name(dev->wiphy)); - err = -EINVAL; - goto err; - } - - priv->rxhw = synth & PDR_SYNTH_FRONTEND_MASK; - if (priv->rxhw == PDR_SYNTH_FRONTEND_XBOW) - p54_init_xbow_synth(dev); - if (!(synth & PDR_SYNTH_24_GHZ_DISABLED)) - dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &band_2GHz; - if (!(synth & PDR_SYNTH_5_GHZ_DISABLED)) - dev->wiphy->bands[IEEE80211_BAND_5GHZ] = &band_5GHz; - if ((synth & PDR_SYNTH_RX_DIV_MASK) == PDR_SYNTH_RX_DIV_SUPPORTED) - priv->rx_diversity_mask = 3; - if ((synth & PDR_SYNTH_TX_DIV_MASK) == PDR_SYNTH_TX_DIV_SUPPORTED) - priv->tx_diversity_mask = 3; - - if (!is_valid_ether_addr(dev->wiphy->perm_addr)) { - u8 perm_addr[ETH_ALEN]; - - printk(KERN_WARNING "%s: Invalid hwaddr! Using randomly generated MAC addr\n", - wiphy_name(dev->wiphy)); - random_ether_addr(perm_addr); - SET_IEEE80211_PERM_ADDR(dev, perm_addr); - } - - printk(KERN_INFO "%s: hwaddr %pM, MAC:isl38%02x RF:%s\n", - wiphy_name(dev->wiphy), - dev->wiphy->perm_addr, - priv->version, p54_rf_chips[priv->rxhw]); - - return 0; - - err: - if (priv->iq_autocal) { - kfree(priv->iq_autocal); - priv->iq_autocal = NULL; - } - - if (priv->output_limit) { - kfree(priv->output_limit); - priv->output_limit = NULL; - } - - if (priv->curve_data) { - kfree(priv->curve_data); - priv->curve_data = NULL; - } - - printk(KERN_ERR "%s: eeprom parse failed!\n", - wiphy_name(dev->wiphy)); - return err; -} -EXPORT_SYMBOL_GPL(p54_parse_eeprom); - -static int p54_rssi_to_dbm(struct ieee80211_hw *dev, int rssi) -{ - struct p54_common *priv = dev->priv; - int band = dev->conf.channel->band; - - if (priv->rxhw != PDR_SYNTH_FRONTEND_LONGBOW) - return ((rssi * priv->rssical_db[band].mul) / 64 + - priv->rssical_db[band].add) / 4; - else - /* - * TODO: find the correct formula - */ - return ((rssi * priv->rssical_db[band].mul) / 64 + - priv->rssical_db[band].add) / 4; -} - -static int p54_rx_data(struct ieee80211_hw *dev, struct sk_buff *skb) -{ - struct p54_common *priv = dev->priv; - struct p54_rx_data *hdr = (struct p54_rx_data *) skb->data; - struct ieee80211_rx_status rx_status = {0}; - u16 freq = le16_to_cpu(hdr->freq); - size_t header_len = sizeof(*hdr); - u32 tsf32; - u8 rate = hdr->rate & 0xf; - - /* - * If the device is in a unspecified state we have to - * ignore all data frames. Else we could end up with a - * nasty crash. - */ - if (unlikely(priv->mode == NL80211_IFTYPE_UNSPECIFIED)) - return 0; - - if (!(hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_IN_FCS_GOOD))) { - return 0; - } - - if (hdr->decrypt_status == P54_DECRYPT_OK) - rx_status.flag |= RX_FLAG_DECRYPTED; - if ((hdr->decrypt_status == P54_DECRYPT_FAIL_MICHAEL) || - (hdr->decrypt_status == P54_DECRYPT_FAIL_TKIP)) - rx_status.flag |= RX_FLAG_MMIC_ERROR; - - rx_status.signal = p54_rssi_to_dbm(dev, hdr->rssi); - rx_status.noise = priv->noise; - if (hdr->rate & 0x10) - rx_status.flag |= RX_FLAG_SHORTPRE; - if (dev->conf.channel->band == IEEE80211_BAND_5GHZ) - rx_status.rate_idx = (rate < 4) ? 0 : rate - 4; - else - rx_status.rate_idx = rate; - - rx_status.freq = freq; - rx_status.band = dev->conf.channel->band; - rx_status.antenna = hdr->antenna; - - tsf32 = le32_to_cpu(hdr->tsf32); - if (tsf32 < priv->tsf_low32) - priv->tsf_high32++; - rx_status.mactime = ((u64)priv->tsf_high32) << 32 | tsf32; - priv->tsf_low32 = tsf32; - - rx_status.flag |= RX_FLAG_TSFT; - - if (hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_ALIGN)) - header_len += hdr->align[0]; - - skb_pull(skb, header_len); - skb_trim(skb, le16_to_cpu(hdr->len)); - - ieee80211_rx_irqsafe(dev, skb, &rx_status); - - queue_delayed_work(dev->workqueue, &priv->work, - msecs_to_jiffies(P54_STATISTICS_UPDATE)); - - return -1; -} - -static void inline p54_wake_free_queues(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - int i; - - if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) - return ; - - for (i = 0; i < dev->queues; i++) - if (priv->tx_stats[i + P54_QUEUE_DATA].len < - priv->tx_stats[i + P54_QUEUE_DATA].limit) - ieee80211_wake_queue(dev, i); -} - -void p54_free_skb(struct ieee80211_hw *dev, struct sk_buff *skb) -{ - struct p54_common *priv = dev->priv; - struct ieee80211_tx_info *info; - struct p54_tx_info *range; - unsigned long flags; - - if (unlikely(!skb || !dev || !skb_queue_len(&priv->tx_queue))) - return; - - /* - * don't try to free an already unlinked skb - */ - if (unlikely((!skb->next) || (!skb->prev))) - return; - - spin_lock_irqsave(&priv->tx_queue.lock, flags); - info = IEEE80211_SKB_CB(skb); - range = (void *)info->rate_driver_data; - if (skb->prev != (struct sk_buff *)&priv->tx_queue) { - struct ieee80211_tx_info *ni; - struct p54_tx_info *mr; - - ni = IEEE80211_SKB_CB(skb->prev); - mr = (struct p54_tx_info *)ni->rate_driver_data; - } - if (skb->next != (struct sk_buff *)&priv->tx_queue) { - struct ieee80211_tx_info *ni; - struct p54_tx_info *mr; - - ni = IEEE80211_SKB_CB(skb->next); - mr = (struct p54_tx_info *)ni->rate_driver_data; - } - __skb_unlink(skb, &priv->tx_queue); - spin_unlock_irqrestore(&priv->tx_queue.lock, flags); - dev_kfree_skb_any(skb); - p54_wake_free_queues(dev); -} -EXPORT_SYMBOL_GPL(p54_free_skb); - -static struct sk_buff *p54_find_tx_entry(struct ieee80211_hw *dev, - __le32 req_id) -{ - struct p54_common *priv = dev->priv; - struct sk_buff *entry; - unsigned long flags; - - spin_lock_irqsave(&priv->tx_queue.lock, flags); - entry = priv->tx_queue.next; - while (entry != (struct sk_buff *)&priv->tx_queue) { - struct p54_hdr *hdr = (struct p54_hdr *) entry->data; - - if (hdr->req_id == req_id) { - spin_unlock_irqrestore(&priv->tx_queue.lock, flags); - return entry; - } - entry = entry->next; - } - spin_unlock_irqrestore(&priv->tx_queue.lock, flags); - return NULL; -} - -static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb) -{ - struct p54_common *priv = dev->priv; - struct p54_hdr *hdr = (struct p54_hdr *) skb->data; - struct p54_frame_sent *payload = (struct p54_frame_sent *) hdr->data; - struct sk_buff *entry; - u32 addr = le32_to_cpu(hdr->req_id) - priv->headroom; - struct p54_tx_info *range = NULL; - unsigned long flags; - int count, idx; - - spin_lock_irqsave(&priv->tx_queue.lock, flags); - entry = (struct sk_buff *) priv->tx_queue.next; - while (entry != (struct sk_buff *)&priv->tx_queue) { - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry); - struct p54_hdr *entry_hdr; - struct p54_tx_data *entry_data; - unsigned int pad = 0, frame_len; - - range = (void *)info->rate_driver_data; - if (range->start_addr != addr) { - entry = entry->next; - continue; - } - - if (entry->next != (struct sk_buff *)&priv->tx_queue) { - struct ieee80211_tx_info *ni; - struct p54_tx_info *mr; - - ni = IEEE80211_SKB_CB(entry->next); - mr = (struct p54_tx_info *)ni->rate_driver_data; - } - - __skb_unlink(entry, &priv->tx_queue); - - frame_len = entry->len; - entry_hdr = (struct p54_hdr *) entry->data; - entry_data = (struct p54_tx_data *) entry_hdr->data; - if (priv->tx_stats[entry_data->hw_queue].len) - priv->tx_stats[entry_data->hw_queue].len--; - priv->stats.dot11ACKFailureCount += payload->tries - 1; - spin_unlock_irqrestore(&priv->tx_queue.lock, flags); - - /* - * Frames in P54_QUEUE_FWSCAN and P54_QUEUE_BEACON are - * generated by the driver. Therefore tx_status is bogus - * and we don't want to confuse the mac80211 stack. - */ - if (unlikely(entry_data->hw_queue < P54_QUEUE_FWSCAN)) { - if (entry_data->hw_queue == P54_QUEUE_BEACON) - priv->cached_beacon = NULL; - - kfree_skb(entry); - goto out; - } - - /* - * Clear manually, ieee80211_tx_info_clear_status would - * clear the counts too and we need them. - */ - memset(&info->status.ampdu_ack_len, 0, - sizeof(struct ieee80211_tx_info) - - offsetof(struct ieee80211_tx_info, status.ampdu_ack_len)); - BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, - status.ampdu_ack_len) != 23); - - if (entry_hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_ALIGN)) - pad = entry_data->align[0]; - - /* walk through the rates array and adjust the counts */ - count = payload->tries; - for (idx = 0; idx < 4; idx++) { - if (count >= info->status.rates[idx].count) { - count -= info->status.rates[idx].count; - } else if (count > 0) { - info->status.rates[idx].count = count; - count = 0; - } else { - info->status.rates[idx].idx = -1; - info->status.rates[idx].count = 0; - } - } - - if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && - (!payload->status)) - info->flags |= IEEE80211_TX_STAT_ACK; - if (payload->status & P54_TX_PSM_CANCELLED) - info->flags |= IEEE80211_TX_STAT_TX_FILTERED; - info->status.ack_signal = p54_rssi_to_dbm(dev, - (int)payload->ack_rssi); - - /* Undo all changes to the frame. */ - switch (entry_data->key_type) { - case P54_CRYPTO_TKIPMICHAEL: { - u8 *iv = (u8 *)(entry_data->align + pad + - entry_data->crypt_offset); - - /* Restore the original TKIP IV. */ - iv[2] = iv[0]; - iv[0] = iv[1]; - iv[1] = (iv[0] | 0x20) & 0x7f; /* WEPSeed - 8.3.2.2 */ - - frame_len -= 12; /* remove TKIP_MMIC + TKIP_ICV */ - break; - } - case P54_CRYPTO_AESCCMP: - frame_len -= 8; /* remove CCMP_MIC */ - break; - case P54_CRYPTO_WEP: - frame_len -= 4; /* remove WEP_ICV */ - break; - } - skb_trim(entry, frame_len); - skb_pull(entry, sizeof(*hdr) + pad + sizeof(*entry_data)); - ieee80211_tx_status_irqsafe(dev, entry); - goto out; - } - spin_unlock_irqrestore(&priv->tx_queue.lock, flags); - -out: - p54_wake_free_queues(dev); -} - -static void p54_rx_eeprom_readback(struct ieee80211_hw *dev, - struct sk_buff *skb) -{ - struct p54_hdr *hdr = (struct p54_hdr *) skb->data; - struct p54_eeprom_lm86 *eeprom = (struct p54_eeprom_lm86 *) hdr->data; - struct p54_common *priv = dev->priv; - - if (!priv->eeprom) - return ; - - if (priv->fw_var >= 0x509) { - memcpy(priv->eeprom, eeprom->v2.data, - le16_to_cpu(eeprom->v2.len)); - } else { - memcpy(priv->eeprom, eeprom->v1.data, - le16_to_cpu(eeprom->v1.len)); - } - - complete(&priv->eeprom_comp); -} - -static void p54_rx_stats(struct ieee80211_hw *dev, struct sk_buff *skb) -{ - struct p54_common *priv = dev->priv; - struct p54_hdr *hdr = (struct p54_hdr *) skb->data; - struct p54_statistics *stats = (struct p54_statistics *) hdr->data; - u32 tsf32; - - if (unlikely(priv->mode == NL80211_IFTYPE_UNSPECIFIED)) - return ; - - tsf32 = le32_to_cpu(stats->tsf32); - if (tsf32 < priv->tsf_low32) - priv->tsf_high32++; - priv->tsf_low32 = tsf32; - - priv->stats.dot11RTSFailureCount = le32_to_cpu(stats->rts_fail); - priv->stats.dot11RTSSuccessCount = le32_to_cpu(stats->rts_success); - priv->stats.dot11FCSErrorCount = le32_to_cpu(stats->rx_bad_fcs); - - priv->noise = p54_rssi_to_dbm(dev, le32_to_cpu(stats->noise)); - - p54_free_skb(dev, p54_find_tx_entry(dev, hdr->req_id)); -} - -static void p54_rx_trap(struct ieee80211_hw *dev, struct sk_buff *skb) -{ - struct p54_common *priv = dev->priv; - struct p54_hdr *hdr = (struct p54_hdr *) skb->data; - struct p54_trap *trap = (struct p54_trap *) hdr->data; - u16 event = le16_to_cpu(trap->event); - u16 freq = le16_to_cpu(trap->frequency); - - switch (event) { - case P54_TRAP_BEACON_TX: - break; - case P54_TRAP_RADAR: - printk(KERN_INFO "%s: radar (freq:%d MHz)\n", - wiphy_name(dev->wiphy), freq); - break; - case P54_TRAP_NO_BEACON: - if (priv->vif) - ieee80211_beacon_loss(priv->vif); - break; - case P54_TRAP_SCAN: - break; - case P54_TRAP_TBTT: - break; - case P54_TRAP_TIMER: - break; - default: - printk(KERN_INFO "%s: received event:%x freq:%d\n", - wiphy_name(dev->wiphy), event, freq); - break; - } -} - -static int p54_rx_control(struct ieee80211_hw *dev, struct sk_buff *skb) -{ - struct p54_hdr *hdr = (struct p54_hdr *) skb->data; - - switch (le16_to_cpu(hdr->type)) { - case P54_CONTROL_TYPE_TXDONE: - p54_rx_frame_sent(dev, skb); - break; - case P54_CONTROL_TYPE_TRAP: - p54_rx_trap(dev, skb); - break; - case P54_CONTROL_TYPE_BBP: - break; - case P54_CONTROL_TYPE_STAT_READBACK: - p54_rx_stats(dev, skb); - break; - case P54_CONTROL_TYPE_EEPROM_READBACK: - p54_rx_eeprom_readback(dev, skb); - break; - default: - printk(KERN_DEBUG "%s: not handling 0x%02x type control frame\n", - wiphy_name(dev->wiphy), le16_to_cpu(hdr->type)); - break; - } - - return 0; -} - -/* returns zero if skb can be reused */ -int p54_rx(struct ieee80211_hw *dev, struct sk_buff *skb) -{ - u16 type = le16_to_cpu(*((__le16 *)skb->data)); - - if (type & P54_HDR_FLAG_CONTROL) - return p54_rx_control(dev, skb); - else - return p54_rx_data(dev, skb); -} -EXPORT_SYMBOL_GPL(p54_rx); - -/* - * So, the firmware is somewhat stupid and doesn't know what places in its - * memory incoming data should go to. By poking around in the firmware, we - * can find some unused memory to upload our packets to. However, data that we - * want the card to TX needs to stay intact until the card has told us that - * it is done with it. This function finds empty places we can upload to and - * marks allocated areas as reserved if necessary. p54_rx_frame_sent or - * p54_free_skb frees allocated areas. - */ -static int p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb, - struct p54_hdr *data, u32 len) -{ - struct p54_common *priv = dev->priv; - struct sk_buff *entry; - struct sk_buff *target_skb = NULL; - struct ieee80211_tx_info *info; - struct p54_tx_info *range; - u32 last_addr = priv->rx_start; - u32 largest_hole = 0; - u32 target_addr = priv->rx_start; - unsigned long flags; - unsigned int left; - len = (len + priv->headroom + priv->tailroom + 3) & ~0x3; - - if (!skb) - return -EINVAL; - - spin_lock_irqsave(&priv->tx_queue.lock, flags); - - left = skb_queue_len(&priv->tx_queue); - if (unlikely(left >= 28)) { - /* - * The tx_queue is nearly full! - * We have throttle normal data traffic, because we must - * have a few spare slots for control frames left. - */ - ieee80211_stop_queues(dev); - queue_delayed_work(dev->workqueue, &priv->work, - msecs_to_jiffies(P54_TX_TIMEOUT)); - - if (unlikely(left == 32)) { - /* - * The tx_queue is now really full. - * - * TODO: check if the device has crashed and reset it. - */ - spin_unlock_irqrestore(&priv->tx_queue.lock, flags); - return -ENOSPC; - } - } - - entry = priv->tx_queue.next; - while (left--) { - u32 hole_size; - info = IEEE80211_SKB_CB(entry); - range = (void *)info->rate_driver_data; - hole_size = range->start_addr - last_addr; - if (!target_skb && hole_size >= len) { - target_skb = entry->prev; - hole_size -= len; - target_addr = last_addr; - } - largest_hole = max(largest_hole, hole_size); - last_addr = range->end_addr; - entry = entry->next; - } - if (!target_skb && priv->rx_end - last_addr >= len) { - target_skb = priv->tx_queue.prev; - largest_hole = max(largest_hole, priv->rx_end - last_addr - len); - if (!skb_queue_empty(&priv->tx_queue)) { - info = IEEE80211_SKB_CB(target_skb); - range = (void *)info->rate_driver_data; - target_addr = range->end_addr; - } - } else - largest_hole = max(largest_hole, priv->rx_end - last_addr); - - if (!target_skb) { - spin_unlock_irqrestore(&priv->tx_queue.lock, flags); - ieee80211_stop_queues(dev); - return -ENOSPC; - } - - info = IEEE80211_SKB_CB(skb); - range = (void *)info->rate_driver_data; - range->start_addr = target_addr; - range->end_addr = target_addr + len; - __skb_queue_after(&priv->tx_queue, target_skb, skb); - spin_unlock_irqrestore(&priv->tx_queue.lock, flags); - - if (largest_hole < priv->headroom + sizeof(struct p54_hdr) + - 48 + IEEE80211_MAX_RTS_THRESHOLD + priv->tailroom) - ieee80211_stop_queues(dev); - - data->req_id = cpu_to_le32(target_addr + priv->headroom); - return 0; -} - -static struct sk_buff *p54_alloc_skb(struct ieee80211_hw *dev, u16 hdr_flags, - u16 payload_len, u16 type, gfp_t memflags) -{ - struct p54_common *priv = dev->priv; - struct p54_hdr *hdr; - struct sk_buff *skb; - size_t frame_len = sizeof(*hdr) + payload_len; - - if (frame_len > P54_MAX_CTRL_FRAME_LEN) - return NULL; - - skb = __dev_alloc_skb(priv->tx_hdr_len + frame_len, memflags); - if (!skb) - return NULL; - skb_reserve(skb, priv->tx_hdr_len); - - hdr = (struct p54_hdr *) skb_put(skb, sizeof(*hdr)); - hdr->flags = cpu_to_le16(hdr_flags); - hdr->len = cpu_to_le16(payload_len); - hdr->type = cpu_to_le16(type); - hdr->tries = hdr->rts_tries = 0; - - if (p54_assign_address(dev, skb, hdr, frame_len)) { - kfree_skb(skb); - return NULL; - } - return skb; -} - -int p54_read_eeprom(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - struct p54_eeprom_lm86 *eeprom_hdr; - struct sk_buff *skb; - size_t eeprom_size = 0x2020, offset = 0, blocksize, maxblocksize; - int ret = -ENOMEM; - void *eeprom = NULL; - - maxblocksize = EEPROM_READBACK_LEN; - if (priv->fw_var >= 0x509) - maxblocksize -= 0xc; - else - maxblocksize -= 0x4; - - skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL, sizeof(*eeprom_hdr) + - maxblocksize, P54_CONTROL_TYPE_EEPROM_READBACK, - GFP_KERNEL); - if (!skb) - goto free; - priv->eeprom = kzalloc(EEPROM_READBACK_LEN, GFP_KERNEL); - if (!priv->eeprom) - goto free; - eeprom = kzalloc(eeprom_size, GFP_KERNEL); - if (!eeprom) - goto free; - - eeprom_hdr = (struct p54_eeprom_lm86 *) skb_put(skb, - sizeof(*eeprom_hdr) + maxblocksize); - - while (eeprom_size) { - blocksize = min(eeprom_size, maxblocksize); - if (priv->fw_var < 0x509) { - eeprom_hdr->v1.offset = cpu_to_le16(offset); - eeprom_hdr->v1.len = cpu_to_le16(blocksize); - } else { - eeprom_hdr->v2.offset = cpu_to_le32(offset); - eeprom_hdr->v2.len = cpu_to_le16(blocksize); - eeprom_hdr->v2.magic2 = 0xf; - memcpy(eeprom_hdr->v2.magic, (const char *)"LOCK", 4); - } - priv->tx(dev, skb); - - if (!wait_for_completion_interruptible_timeout(&priv->eeprom_comp, HZ)) { - printk(KERN_ERR "%s: device does not respond!\n", - wiphy_name(dev->wiphy)); - ret = -EBUSY; - goto free; - } - - memcpy(eeprom + offset, priv->eeprom, blocksize); - offset += blocksize; - eeprom_size -= blocksize; - } - - ret = p54_parse_eeprom(dev, eeprom, offset); -free: - kfree(priv->eeprom); - priv->eeprom = NULL; - p54_free_skb(dev, skb); - kfree(eeprom); - - return ret; -} -EXPORT_SYMBOL_GPL(p54_read_eeprom); - -static int p54_set_tim(struct ieee80211_hw *dev, struct ieee80211_sta *sta, - bool set) -{ - struct p54_common *priv = dev->priv; - struct sk_buff *skb; - struct p54_tim *tim; - - skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*tim), - P54_CONTROL_TYPE_TIM, GFP_ATOMIC); - if (!skb) - return -ENOMEM; - - tim = (struct p54_tim *) skb_put(skb, sizeof(*tim)); - tim->count = 1; - tim->entry[0] = cpu_to_le16(set ? (sta->aid | 0x8000) : sta->aid); - priv->tx(dev, skb); - return 0; -} - -static int p54_sta_unlock(struct ieee80211_hw *dev, u8 *addr) -{ - struct p54_common *priv = dev->priv; - struct sk_buff *skb; - struct p54_sta_unlock *sta; - - skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*sta), - P54_CONTROL_TYPE_PSM_STA_UNLOCK, GFP_ATOMIC); - if (!skb) - return -ENOMEM; - - sta = (struct p54_sta_unlock *)skb_put(skb, sizeof(*sta)); - memcpy(sta->addr, addr, ETH_ALEN); - priv->tx(dev, skb); - return 0; -} - -static void p54_sta_notify(struct ieee80211_hw *dev, struct ieee80211_vif *vif, - enum sta_notify_cmd notify_cmd, - struct ieee80211_sta *sta) -{ - switch (notify_cmd) { - case STA_NOTIFY_ADD: - case STA_NOTIFY_REMOVE: - /* - * Notify the firmware that we don't want or we don't - * need to buffer frames for this station anymore. - */ - - p54_sta_unlock(dev, sta->addr); - break; - case STA_NOTIFY_AWAKE: - /* update the firmware's filter table */ - p54_sta_unlock(dev, sta->addr); - break; - default: - break; - } -} - -static int p54_tx_cancel(struct ieee80211_hw *dev, struct sk_buff *entry) -{ - struct p54_common *priv = dev->priv; - struct sk_buff *skb; - struct p54_hdr *hdr; - struct p54_txcancel *cancel; - - skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*cancel), - P54_CONTROL_TYPE_TXCANCEL, GFP_ATOMIC); - if (!skb) - return -ENOMEM; - - hdr = (void *)entry->data; - cancel = (struct p54_txcancel *)skb_put(skb, sizeof(*cancel)); - cancel->req_id = hdr->req_id; - priv->tx(dev, skb); - return 0; -} - -static int p54_tx_fill(struct ieee80211_hw *dev, struct sk_buff *skb, - struct ieee80211_tx_info *info, u8 *queue, size_t *extra_len, - u16 *flags, u16 *aid) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; - struct p54_common *priv = dev->priv; - int ret = 1; - - switch (priv->mode) { - case NL80211_IFTYPE_MONITOR: - /* - * We have to set P54_HDR_FLAG_DATA_OUT_PROMISC for - * every frame in promiscuous/monitor mode. - * see STSW45x0C LMAC API - page 12. - */ - *aid = 0; - *flags = P54_HDR_FLAG_DATA_OUT_PROMISC; - *queue += P54_QUEUE_DATA; - break; - case NL80211_IFTYPE_STATION: - *aid = 1; - if (unlikely(ieee80211_is_mgmt(hdr->frame_control))) { - *queue = P54_QUEUE_MGMT; - ret = 0; - } else - *queue += P54_QUEUE_DATA; - break; - case NL80211_IFTYPE_AP: - case NL80211_IFTYPE_ADHOC: - case NL80211_IFTYPE_MESH_POINT: - if (info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM) { - *aid = 0; - *queue = P54_QUEUE_CAB; - return 0; - } - - if (unlikely(ieee80211_is_mgmt(hdr->frame_control))) { - if (ieee80211_is_probe_resp(hdr->frame_control)) { - *aid = 0; - *queue = P54_QUEUE_MGMT; - *flags = P54_HDR_FLAG_DATA_OUT_TIMESTAMP | - P54_HDR_FLAG_DATA_OUT_NOCANCEL; - return 0; - } else if (ieee80211_is_beacon(hdr->frame_control)) { - *aid = 0; - - if (info->flags & IEEE80211_TX_CTL_INJECTED) { - /* - * Injecting beacons on top of a AP is - * not a good idea... nevertheless, - * it should be doable. - */ - - *queue += P54_QUEUE_DATA; - return 1; - } - - *flags = P54_HDR_FLAG_DATA_OUT_TIMESTAMP; - *queue = P54_QUEUE_BEACON; - *extra_len = IEEE80211_MAX_TIM_LEN; - return 0; - } else { - *queue = P54_QUEUE_MGMT; - ret = 0; - } - } else - *queue += P54_QUEUE_DATA; - - if (info->control.sta) - *aid = info->control.sta->aid; - - if (info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT) - *flags |= P54_HDR_FLAG_DATA_OUT_NOCANCEL; - break; - } - return ret; -} - -static u8 p54_convert_algo(enum ieee80211_key_alg alg) -{ - switch (alg) { - case ALG_WEP: - return P54_CRYPTO_WEP; - case ALG_TKIP: - return P54_CRYPTO_TKIPMICHAEL; - case ALG_CCMP: - return P54_CRYPTO_AESCCMP; - default: - return 0; - } -} - -static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb) -{ - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_tx_queue_stats *current_queue; - struct p54_common *priv = dev->priv; - struct p54_hdr *hdr; - struct p54_tx_data *txhdr; - size_t padding, len, tim_len = 0; - int i, j, ridx, ret; - u16 hdr_flags = 0, aid = 0; - u8 rate, queue, crypt_offset = 0; - u8 cts_rate = 0x20; - u8 rc_flags; - u8 calculated_tries[4]; - u8 nrates = 0, nremaining = 8; - - queue = skb_get_queue_mapping(skb); - - ret = p54_tx_fill(dev, skb, info, &queue, &tim_len, &hdr_flags, &aid); - current_queue = &priv->tx_stats[queue]; - if (unlikely((current_queue->len > current_queue->limit) && ret)) - return NETDEV_TX_BUSY; - current_queue->len++; - current_queue->count++; - if ((current_queue->len == current_queue->limit) && ret) - ieee80211_stop_queue(dev, skb_get_queue_mapping(skb)); - - padding = (unsigned long)(skb->data - (sizeof(*hdr) + sizeof(*txhdr))) & 3; - len = skb->len; - - if (info->control.hw_key) { - crypt_offset = ieee80211_get_hdrlen_from_skb(skb); - if (info->control.hw_key->alg == ALG_TKIP) { - u8 *iv = (u8 *)(skb->data + crypt_offset); - /* - * The firmware excepts that the IV has to have - * this special format - */ - iv[1] = iv[0]; - iv[0] = iv[2]; - iv[2] = 0; - } - } - - txhdr = (struct p54_tx_data *) skb_push(skb, sizeof(*txhdr) + padding); - hdr = (struct p54_hdr *) skb_push(skb, sizeof(*hdr)); - - if (padding) - hdr_flags |= P54_HDR_FLAG_DATA_ALIGN; - hdr->type = cpu_to_le16(aid); - hdr->rts_tries = info->control.rates[0].count; - - /* - * we register the rates in perfect order, and - * RTS/CTS won't happen on 5 GHz - */ - cts_rate = info->control.rts_cts_rate_idx; - - memset(&txhdr->rateset, 0, sizeof(txhdr->rateset)); - - /* see how many rates got used */ - for (i = 0; i < 4; i++) { - if (info->control.rates[i].idx < 0) - break; - nrates++; - } - - /* limit tries to 8/nrates per rate */ - for (i = 0; i < nrates; i++) { - /* - * The magic expression here is equivalent to 8/nrates for - * all values that matter, but avoids division and jumps. - * Note that nrates can only take the values 1 through 4. - */ - calculated_tries[i] = min_t(int, ((15 >> nrates) | 1) + 1, - info->control.rates[i].count); - nremaining -= calculated_tries[i]; - } - - /* if there are tries left, distribute from back to front */ - for (i = nrates - 1; nremaining > 0 && i >= 0; i--) { - int tmp = info->control.rates[i].count - calculated_tries[i]; - - if (tmp <= 0) - continue; - /* RC requested more tries at this rate */ - - tmp = min_t(int, tmp, nremaining); - calculated_tries[i] += tmp; - nremaining -= tmp; - } - - ridx = 0; - for (i = 0; i < nrates && ridx < 8; i++) { - /* we register the rates in perfect order */ - rate = info->control.rates[i].idx; - if (info->band == IEEE80211_BAND_5GHZ) - rate += 4; - - /* store the count we actually calculated for TX status */ - info->control.rates[i].count = calculated_tries[i]; - - rc_flags = info->control.rates[i].flags; - if (rc_flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) { - rate |= 0x10; - cts_rate |= 0x10; - } - if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) - rate |= 0x40; - else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) - rate |= 0x20; - for (j = 0; j < calculated_tries[i] && ridx < 8; j++) { - txhdr->rateset[ridx] = rate; - ridx++; - } - } - - if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) - hdr_flags |= P54_HDR_FLAG_DATA_OUT_SEQNR; - - /* TODO: enable bursting */ - hdr->flags = cpu_to_le16(hdr_flags); - hdr->tries = ridx; - txhdr->rts_rate_idx = 0; - if (info->control.hw_key) { - txhdr->key_type = p54_convert_algo(info->control.hw_key->alg); - txhdr->key_len = min((u8)16, info->control.hw_key->keylen); - memcpy(txhdr->key, info->control.hw_key->key, txhdr->key_len); - if (info->control.hw_key->alg == ALG_TKIP) { - if (unlikely(skb_tailroom(skb) < 12)) - goto err; - /* reserve space for the MIC key */ - len += 8; - memcpy(skb_put(skb, 8), &(info->control.hw_key->key - [NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY]), 8); - } - /* reserve some space for ICV */ - len += info->control.hw_key->icv_len; - memset(skb_put(skb, info->control.hw_key->icv_len), 0, - info->control.hw_key->icv_len); - } else { - txhdr->key_type = 0; - txhdr->key_len = 0; - } - txhdr->crypt_offset = crypt_offset; - txhdr->hw_queue = queue; - txhdr->backlog = current_queue->len; - memset(txhdr->durations, 0, sizeof(txhdr->durations)); - txhdr->tx_antenna = ((info->antenna_sel_tx == 0) ? - 2 : info->antenna_sel_tx - 1) & priv->tx_diversity_mask; - if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) { - txhdr->longbow.cts_rate = cts_rate; - txhdr->longbow.output_power = cpu_to_le16(priv->output_power); - } else { - txhdr->normal.output_power = priv->output_power; - txhdr->normal.cts_rate = cts_rate; - } - if (padding) - txhdr->align[0] = padding; - - hdr->len = cpu_to_le16(len); - /* modifies skb->cb and with it info, so must be last! */ - if (unlikely(p54_assign_address(dev, skb, hdr, skb->len + tim_len))) - goto err; - priv->tx(dev, skb); - - queue_delayed_work(dev->workqueue, &priv->work, - msecs_to_jiffies(P54_TX_FRAME_LIFETIME)); - - return NETDEV_TX_OK; - - err: - skb_pull(skb, sizeof(*hdr) + sizeof(*txhdr) + padding); - current_queue->len--; - current_queue->count--; - return NETDEV_TX_BUSY; -} - -static int p54_setup_mac(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - struct sk_buff *skb; - struct p54_setup_mac *setup; - u16 mode; - - skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*setup), - P54_CONTROL_TYPE_SETUP, GFP_ATOMIC); - if (!skb) - return -ENOMEM; - - setup = (struct p54_setup_mac *) skb_put(skb, sizeof(*setup)); - if (dev->conf.radio_enabled) { - switch (priv->mode) { - case NL80211_IFTYPE_STATION: - mode = P54_FILTER_TYPE_STATION; - break; - case NL80211_IFTYPE_AP: - mode = P54_FILTER_TYPE_AP; - break; - case NL80211_IFTYPE_ADHOC: - case NL80211_IFTYPE_MESH_POINT: - mode = P54_FILTER_TYPE_IBSS; - break; - case NL80211_IFTYPE_MONITOR: - mode = P54_FILTER_TYPE_PROMISCUOUS; - break; - default: - mode = P54_FILTER_TYPE_HIBERNATE; - break; - } - - /* - * "TRANSPARENT and PROMISCUOUS are mutually exclusive" - * STSW45X0C LMAC API - page 12 - */ - if (((priv->filter_flags & FIF_PROMISC_IN_BSS) || - (priv->filter_flags & FIF_OTHER_BSS)) && - (mode != P54_FILTER_TYPE_PROMISCUOUS)) - mode |= P54_FILTER_TYPE_TRANSPARENT; - } else - mode = P54_FILTER_TYPE_HIBERNATE; - - setup->mac_mode = cpu_to_le16(mode); - memcpy(setup->mac_addr, priv->mac_addr, ETH_ALEN); - memcpy(setup->bssid, priv->bssid, ETH_ALEN); - setup->rx_antenna = 2 & priv->rx_diversity_mask; /* automatic */ - setup->rx_align = 0; - if (priv->fw_var < 0x500) { - setup->v1.basic_rate_mask = cpu_to_le32(priv->basic_rate_mask); - memset(setup->v1.rts_rates, 0, 8); - setup->v1.rx_addr = cpu_to_le32(priv->rx_end); - setup->v1.max_rx = cpu_to_le16(priv->rx_mtu); - setup->v1.rxhw = cpu_to_le16(priv->rxhw); - setup->v1.wakeup_timer = cpu_to_le16(priv->wakeup_timer); - setup->v1.unalloc0 = cpu_to_le16(0); - } else { - setup->v2.rx_addr = cpu_to_le32(priv->rx_end); - setup->v2.max_rx = cpu_to_le16(priv->rx_mtu); - setup->v2.rxhw = cpu_to_le16(priv->rxhw); - setup->v2.timer = cpu_to_le16(priv->wakeup_timer); - setup->v2.truncate = cpu_to_le16(48896); - setup->v2.basic_rate_mask = cpu_to_le32(priv->basic_rate_mask); - setup->v2.sbss_offset = 0; - setup->v2.mcast_window = 0; - setup->v2.rx_rssi_threshold = 0; - setup->v2.rx_ed_threshold = 0; - setup->v2.ref_clock = cpu_to_le32(644245094); - setup->v2.lpf_bandwidth = cpu_to_le16(65535); - setup->v2.osc_start_delay = cpu_to_le16(65535); - } - priv->tx(dev, skb); - return 0; -} - -static int p54_scan(struct ieee80211_hw *dev, u16 mode, u16 dwell) -{ - struct p54_common *priv = dev->priv; - struct sk_buff *skb; - struct p54_hdr *hdr; - struct p54_scan_head *head; - struct p54_iq_autocal_entry *iq_autocal; - union p54_scan_body_union *body; - struct p54_scan_tail_rate *rate; - struct pda_rssi_cal_entry *rssi; - unsigned int i; - void *entry; - int band = dev->conf.channel->band; - __le16 freq = cpu_to_le16(dev->conf.channel->center_freq); - - skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*head) + - 2 + sizeof(*iq_autocal) + sizeof(*body) + - sizeof(*rate) + 2 * sizeof(*rssi), - P54_CONTROL_TYPE_SCAN, GFP_ATOMIC); - if (!skb) - return -ENOMEM; - - head = (struct p54_scan_head *) skb_put(skb, sizeof(*head)); - memset(head->scan_params, 0, sizeof(head->scan_params)); - head->mode = cpu_to_le16(mode); - head->dwell = cpu_to_le16(dwell); - head->freq = freq; - - if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) { - __le16 *pa_power_points = (__le16 *) skb_put(skb, 2); - *pa_power_points = cpu_to_le16(0x0c); - } - - iq_autocal = (void *) skb_put(skb, sizeof(*iq_autocal)); - for (i = 0; i < priv->iq_autocal_len; i++) { - if (priv->iq_autocal[i].freq != freq) - continue; - - memcpy(iq_autocal, &priv->iq_autocal[i].params, - sizeof(struct p54_iq_autocal_entry)); - break; - } - if (i == priv->iq_autocal_len) - goto err; - - if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) - body = (void *) skb_put(skb, sizeof(body->longbow)); - else - body = (void *) skb_put(skb, sizeof(body->normal)); - - for (i = 0; i < priv->output_limit->entries; i++) { - __le16 *entry_freq = (void *) (priv->output_limit->data + - priv->output_limit->entry_size * i); - - if (*entry_freq != freq) - continue; - - if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) { - memcpy(&body->longbow.power_limits, - (void *) entry_freq + sizeof(__le16), - priv->output_limit->entry_size); - } else { - struct pda_channel_output_limit *limits = - (void *) entry_freq; - - body->normal.val_barker = 0x38; - body->normal.val_bpsk = body->normal.dup_bpsk = - limits->val_bpsk; - body->normal.val_qpsk = body->normal.dup_qpsk = - limits->val_qpsk; - body->normal.val_16qam = body->normal.dup_16qam = - limits->val_16qam; - body->normal.val_64qam = body->normal.dup_64qam = - limits->val_64qam; - } - break; - } - if (i == priv->output_limit->entries) - goto err; - - entry = (void *)(priv->curve_data->data + priv->curve_data->offset); - for (i = 0; i < priv->curve_data->entries; i++) { - if (*((__le16 *)entry) != freq) { - entry += priv->curve_data->entry_size; - continue; - } - - if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) { - memcpy(&body->longbow.curve_data, - (void *) entry + sizeof(__le16), - priv->curve_data->entry_size); - } else { - struct p54_scan_body *chan = &body->normal; - struct pda_pa_curve_data *curve_data = - (void *) priv->curve_data->data; - - entry += sizeof(__le16); - chan->pa_points_per_curve = 8; - memset(chan->curve_data, 0, sizeof(*chan->curve_data)); - memcpy(chan->curve_data, entry, - sizeof(struct p54_pa_curve_data_sample) * - min((u8)8, curve_data->points_per_channel)); - } - break; - } - if (i == priv->curve_data->entries) - goto err; - - if ((priv->fw_var >= 0x500) && (priv->fw_var < 0x509)) { - rate = (void *) skb_put(skb, sizeof(*rate)); - rate->basic_rate_mask = cpu_to_le32(priv->basic_rate_mask); - for (i = 0; i < sizeof(rate->rts_rates); i++) - rate->rts_rates[i] = i; - } - - rssi = (struct pda_rssi_cal_entry *) skb_put(skb, sizeof(*rssi)); - rssi->mul = cpu_to_le16(priv->rssical_db[band].mul); - rssi->add = cpu_to_le16(priv->rssical_db[band].add); - if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) { - /* Longbow frontend needs ever more */ - rssi = (void *) skb_put(skb, sizeof(*rssi)); - rssi->mul = cpu_to_le16(priv->rssical_db[band].longbow_unkn); - rssi->add = cpu_to_le16(priv->rssical_db[band].longbow_unk2); - } - - if (priv->fw_var >= 0x509) { - rate = (void *) skb_put(skb, sizeof(*rate)); - rate->basic_rate_mask = cpu_to_le32(priv->basic_rate_mask); - for (i = 0; i < sizeof(rate->rts_rates); i++) - rate->rts_rates[i] = i; - } - - hdr = (struct p54_hdr *) skb->data; - hdr->len = cpu_to_le16(skb->len - sizeof(*hdr)); - - priv->tx(dev, skb); - return 0; - - err: - printk(KERN_ERR "%s: frequency change failed\n", wiphy_name(dev->wiphy)); - p54_free_skb(dev, skb); - return -EINVAL; -} - -static int p54_set_leds(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - struct sk_buff *skb; - struct p54_led *led; - - skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*led), - P54_CONTROL_TYPE_LED, GFP_ATOMIC); - if (!skb) - return -ENOMEM; - - led = (struct p54_led *) skb_put(skb, sizeof(*led)); - led->flags = cpu_to_le16(0x0003); - led->mask[0] = led->mask[1] = cpu_to_le16(priv->softled_state); - led->delay[0] = cpu_to_le16(1); - led->delay[1] = cpu_to_le16(0); - priv->tx(dev, skb); - return 0; -} - -#define P54_SET_QUEUE(queue, ai_fs, cw_min, cw_max, _txop) \ -do { \ - queue.aifs = cpu_to_le16(ai_fs); \ - queue.cwmin = cpu_to_le16(cw_min); \ - queue.cwmax = cpu_to_le16(cw_max); \ - queue.txop = cpu_to_le16(_txop); \ -} while(0) - -static int p54_set_edcf(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - struct sk_buff *skb; - struct p54_edcf *edcf; - - skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*edcf), - P54_CONTROL_TYPE_DCFINIT, GFP_ATOMIC); - if (!skb) - return -ENOMEM; - - edcf = (struct p54_edcf *)skb_put(skb, sizeof(*edcf)); - if (priv->use_short_slot) { - edcf->slottime = 9; - edcf->sifs = 0x10; - edcf->eofpad = 0x00; - } else { - edcf->slottime = 20; - edcf->sifs = 0x0a; - edcf->eofpad = 0x06; - } - /* (see prism54/isl_oid.h for further details) */ - edcf->frameburst = cpu_to_le16(0); - edcf->round_trip_delay = cpu_to_le16(0); - edcf->flags = 0; - memset(edcf->mapping, 0, sizeof(edcf->mapping)); - memcpy(edcf->queue, priv->qos_params, sizeof(edcf->queue)); - priv->tx(dev, skb); - return 0; -} - -static int p54_set_ps(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - struct sk_buff *skb; - struct p54_psm *psm; - u16 mode; - int i; - - if (dev->conf.flags & IEEE80211_CONF_PS) - mode = P54_PSM | P54_PSM_BEACON_TIMEOUT | P54_PSM_DTIM | - P54_PSM_CHECKSUM | P54_PSM_MCBC; - else - mode = P54_PSM_CAM; - - skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*psm), - P54_CONTROL_TYPE_PSM, GFP_ATOMIC); - if (!skb) - return -ENOMEM; - - psm = (struct p54_psm *)skb_put(skb, sizeof(*psm)); - psm->mode = cpu_to_le16(mode); - psm->aid = cpu_to_le16(priv->aid); - for (i = 0; i < ARRAY_SIZE(psm->intervals); i++) { - psm->intervals[i].interval = - cpu_to_le16(dev->conf.listen_interval); - psm->intervals[i].periods = cpu_to_le16(1); - } - - psm->beacon_rssi_skip_max = 200; - psm->rssi_delta_threshold = 0; - psm->nr = 10; - psm->exclude[0] = 0; - - priv->tx(dev, skb); - - return 0; -} - -static int p54_beacon_tim(struct sk_buff *skb) -{ - /* - * the good excuse for this mess is ... the firmware. - * The dummy TIM MUST be at the end of the beacon frame, - * because it'll be overwritten! - */ - - struct ieee80211_mgmt *mgmt = (void *)skb->data; - u8 *pos, *end; - - if (skb->len <= sizeof(mgmt)) - return -EINVAL; - - pos = (u8 *)mgmt->u.beacon.variable; - end = skb->data + skb->len; - while (pos < end) { - if (pos + 2 + pos[1] > end) - return -EINVAL; - - if (pos[0] == WLAN_EID_TIM) { - u8 dtim_len = pos[1]; - u8 dtim_period = pos[3]; - u8 *next = pos + 2 + dtim_len; - - if (dtim_len < 3) - return -EINVAL; - - memmove(pos, next, end - next); - - if (dtim_len > 3) - skb_trim(skb, skb->len - (dtim_len - 3)); - - pos = end - (dtim_len + 2); - - /* add the dummy at the end */ - pos[0] = WLAN_EID_TIM; - pos[1] = 3; - pos[2] = 0; - pos[3] = dtim_period; - pos[4] = 0; - return 0; - } - pos += 2 + pos[1]; - } - return 0; -} - -static int p54_beacon_update(struct ieee80211_hw *dev, - struct ieee80211_vif *vif) -{ - struct p54_common *priv = dev->priv; - struct sk_buff *beacon; - int ret; - - if (priv->cached_beacon) { - p54_tx_cancel(dev, priv->cached_beacon); - /* wait for the last beacon the be freed */ - msleep(10); - } - - beacon = ieee80211_beacon_get(dev, vif); - if (!beacon) - return -ENOMEM; - ret = p54_beacon_tim(beacon); - if (ret) - return ret; - ret = p54_tx(dev, beacon); - if (ret) - return ret; - priv->cached_beacon = beacon; - priv->tsf_high32 = 0; - priv->tsf_low32 = 0; - - return 0; -} - -static int p54_start(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - int err; - - mutex_lock(&priv->conf_mutex); - err = priv->open(dev); - if (err) - goto out; - P54_SET_QUEUE(priv->qos_params[0], 0x0002, 0x0003, 0x0007, 47); - P54_SET_QUEUE(priv->qos_params[1], 0x0002, 0x0007, 0x000f, 94); - P54_SET_QUEUE(priv->qos_params[2], 0x0003, 0x000f, 0x03ff, 0); - P54_SET_QUEUE(priv->qos_params[3], 0x0007, 0x000f, 0x03ff, 0); - err = p54_set_edcf(dev); - if (err) - goto out; - - memset(priv->bssid, ~0, ETH_ALEN); - priv->mode = NL80211_IFTYPE_MONITOR; - err = p54_setup_mac(dev); - if (err) { - priv->mode = NL80211_IFTYPE_UNSPECIFIED; - goto out; - } - - queue_delayed_work(dev->workqueue, &priv->work, 0); - - priv->softled_state = 0; - err = p54_set_leds(dev); - -out: - mutex_unlock(&priv->conf_mutex); - return err; -} - -static void p54_stop(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - struct sk_buff *skb; - - mutex_lock(&priv->conf_mutex); - priv->mode = NL80211_IFTYPE_UNSPECIFIED; - priv->softled_state = 0; - p54_set_leds(dev); - -#ifdef CONFIG_P54_LEDS - cancel_delayed_work_sync(&priv->led_work); -#endif /* CONFIG_P54_LEDS */ - cancel_delayed_work_sync(&priv->work); - if (priv->cached_beacon) - p54_tx_cancel(dev, priv->cached_beacon); - - priv->stop(dev); - while ((skb = skb_dequeue(&priv->tx_queue))) - kfree_skb(skb); - priv->cached_beacon = NULL; - priv->tsf_high32 = priv->tsf_low32 = 0; - mutex_unlock(&priv->conf_mutex); -} - -static int p54_add_interface(struct ieee80211_hw *dev, - struct ieee80211_if_init_conf *conf) -{ - struct p54_common *priv = dev->priv; - - mutex_lock(&priv->conf_mutex); - if (priv->mode != NL80211_IFTYPE_MONITOR) { - mutex_unlock(&priv->conf_mutex); - return -EOPNOTSUPP; - } - - priv->vif = conf->vif; - - switch (conf->type) { - case NL80211_IFTYPE_STATION: - case NL80211_IFTYPE_ADHOC: - case NL80211_IFTYPE_AP: - case NL80211_IFTYPE_MESH_POINT: - priv->mode = conf->type; - break; - default: - mutex_unlock(&priv->conf_mutex); - return -EOPNOTSUPP; - } - - memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); - p54_setup_mac(dev); - mutex_unlock(&priv->conf_mutex); - return 0; -} - -static void p54_remove_interface(struct ieee80211_hw *dev, - struct ieee80211_if_init_conf *conf) -{ - struct p54_common *priv = dev->priv; - - mutex_lock(&priv->conf_mutex); - priv->vif = NULL; - if (priv->cached_beacon) - p54_tx_cancel(dev, priv->cached_beacon); - priv->mode = NL80211_IFTYPE_MONITOR; - memset(priv->mac_addr, 0, ETH_ALEN); - memset(priv->bssid, 0, ETH_ALEN); - p54_setup_mac(dev); - mutex_unlock(&priv->conf_mutex); -} - -static int p54_config(struct ieee80211_hw *dev, u32 changed) -{ - int ret = 0; - struct p54_common *priv = dev->priv; - struct ieee80211_conf *conf = &dev->conf; - - mutex_lock(&priv->conf_mutex); - if (changed & IEEE80211_CONF_CHANGE_POWER) - priv->output_power = conf->power_level << 2; - if (changed & IEEE80211_CONF_CHANGE_RADIO_ENABLED) { - ret = p54_setup_mac(dev); - if (ret) - goto out; - } - if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { - ret = p54_scan(dev, P54_SCAN_EXIT, 0); - if (ret) - goto out; - } - if (changed & IEEE80211_CONF_CHANGE_PS) { - ret = p54_set_ps(dev); - if (ret) - goto out; - } - -out: - mutex_unlock(&priv->conf_mutex); - return ret; -} - -static void p54_configure_filter(struct ieee80211_hw *dev, - unsigned int changed_flags, - unsigned int *total_flags, - int mc_count, struct dev_mc_list *mclist) -{ - struct p54_common *priv = dev->priv; - - *total_flags &= FIF_PROMISC_IN_BSS | - FIF_OTHER_BSS; - - priv->filter_flags = *total_flags; - - if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) - p54_setup_mac(dev); -} - -static int p54_conf_tx(struct ieee80211_hw *dev, u16 queue, - const struct ieee80211_tx_queue_params *params) -{ - struct p54_common *priv = dev->priv; - int ret; - - mutex_lock(&priv->conf_mutex); - if ((params) && !(queue > 4)) { - P54_SET_QUEUE(priv->qos_params[queue], params->aifs, - params->cw_min, params->cw_max, params->txop); - ret = p54_set_edcf(dev); - } else - ret = -EINVAL; - mutex_unlock(&priv->conf_mutex); - return ret; -} - -static int p54_init_xbow_synth(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - struct sk_buff *skb; - struct p54_xbow_synth *xbow; - - skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*xbow), - P54_CONTROL_TYPE_XBOW_SYNTH_CFG, GFP_KERNEL); - if (!skb) - return -ENOMEM; - - xbow = (struct p54_xbow_synth *)skb_put(skb, sizeof(*xbow)); - xbow->magic1 = cpu_to_le16(0x1); - xbow->magic2 = cpu_to_le16(0x2); - xbow->freq = cpu_to_le16(5390); - memset(xbow->padding, 0, sizeof(xbow->padding)); - priv->tx(dev, skb); - return 0; -} - -static void p54_work(struct work_struct *work) -{ - struct p54_common *priv = container_of(work, struct p54_common, - work.work); - struct ieee80211_hw *dev = priv->hw; - struct sk_buff *skb; - - if (unlikely(priv->mode == NL80211_IFTYPE_UNSPECIFIED)) - return ; - - /* - * TODO: walk through tx_queue and do the following tasks - * 1. initiate bursts. - * 2. cancel stuck frames / reset the device if necessary. - */ - - skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL, - sizeof(struct p54_statistics), - P54_CONTROL_TYPE_STAT_READBACK, GFP_KERNEL); - if (!skb) - return ; - - priv->tx(dev, skb); -} - -static int p54_get_stats(struct ieee80211_hw *dev, - struct ieee80211_low_level_stats *stats) -{ - struct p54_common *priv = dev->priv; - - memcpy(stats, &priv->stats, sizeof(*stats)); - return 0; -} - -static int p54_get_tx_stats(struct ieee80211_hw *dev, - struct ieee80211_tx_queue_stats *stats) -{ - struct p54_common *priv = dev->priv; - - memcpy(stats, &priv->tx_stats[P54_QUEUE_DATA], - sizeof(stats[0]) * dev->queues); - return 0; -} - -static void p54_bss_info_changed(struct ieee80211_hw *dev, - struct ieee80211_vif *vif, - struct ieee80211_bss_conf *info, - u32 changed) -{ - struct p54_common *priv = dev->priv; - int ret; - - mutex_lock(&priv->conf_mutex); - if (changed & BSS_CHANGED_BSSID) { - memcpy(priv->bssid, info->bssid, ETH_ALEN); - ret = p54_setup_mac(dev); - if (ret) - goto out; - } - - if (changed & BSS_CHANGED_BEACON) { - ret = p54_scan(dev, P54_SCAN_EXIT, 0); - if (ret) - goto out; - ret = p54_setup_mac(dev); - if (ret) - goto out; - ret = p54_beacon_update(dev, vif); - if (ret) - goto out; - } - /* XXX: this mimics having two callbacks... clean up */ - out: - mutex_unlock(&priv->conf_mutex); - - if (changed & (BSS_CHANGED_ERP_SLOT | BSS_CHANGED_BEACON)) { - priv->use_short_slot = info->use_short_slot; - p54_set_edcf(dev); - } - if (changed & BSS_CHANGED_BASIC_RATES) { - if (dev->conf.channel->band == IEEE80211_BAND_5GHZ) - priv->basic_rate_mask = (info->basic_rates << 4); - else - priv->basic_rate_mask = info->basic_rates; - p54_setup_mac(dev); - if (priv->fw_var >= 0x500) - p54_scan(dev, P54_SCAN_EXIT, 0); - } - if (changed & BSS_CHANGED_ASSOC) { - if (info->assoc) { - priv->aid = info->aid; - priv->wakeup_timer = info->beacon_int * - info->dtim_period * 5; - p54_setup_mac(dev); - } - } -} - -static int p54_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd, - struct ieee80211_vif *vif, struct ieee80211_sta *sta, - struct ieee80211_key_conf *key) -{ - struct p54_common *priv = dev->priv; - struct sk_buff *skb; - struct p54_keycache *rxkey; - int slot, ret = 0; - u8 algo = 0; - - if (modparam_nohwcrypt) - return -EOPNOTSUPP; - - mutex_lock(&priv->conf_mutex); - if (cmd == SET_KEY) { - switch (key->alg) { - case ALG_TKIP: - if (!(priv->privacy_caps & (BR_DESC_PRIV_CAP_MICHAEL | - BR_DESC_PRIV_CAP_TKIP))) { - ret = -EOPNOTSUPP; - goto out_unlock; - } - key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; - algo = P54_CRYPTO_TKIPMICHAEL; - break; - case ALG_WEP: - if (!(priv->privacy_caps & BR_DESC_PRIV_CAP_WEP)) { - ret = -EOPNOTSUPP; - goto out_unlock; - } - key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; - algo = P54_CRYPTO_WEP; - break; - case ALG_CCMP: - if (!(priv->privacy_caps & BR_DESC_PRIV_CAP_AESCCMP)) { - ret = -EOPNOTSUPP; - goto out_unlock; - } - key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; - algo = P54_CRYPTO_AESCCMP; - break; - default: - ret = -EOPNOTSUPP; - goto out_unlock; - } - slot = bitmap_find_free_region(priv->used_rxkeys, - priv->rx_keycache_size, 0); - - if (slot < 0) { - /* - * The device supports the choosen algorithm, but the - * firmware does not provide enough key slots to store - * all of them. - * But encryption offload for outgoing frames is always - * possible, so we just pretend that the upload was - * successful and do the decryption in software. - */ - - /* mark the key as invalid. */ - key->hw_key_idx = 0xff; - goto out_unlock; - } - } else { - slot = key->hw_key_idx; - - if (slot == 0xff) { - /* This key was not uploaded into the rx key cache. */ - - goto out_unlock; - } - - bitmap_release_region(priv->used_rxkeys, slot, 0); - algo = 0; - } - - skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*rxkey), - P54_CONTROL_TYPE_RX_KEYCACHE, GFP_KERNEL); - if (!skb) { - bitmap_release_region(priv->used_rxkeys, slot, 0); - ret = -ENOSPC; - goto out_unlock; - } - - rxkey = (struct p54_keycache *)skb_put(skb, sizeof(*rxkey)); - rxkey->entry = slot; - rxkey->key_id = key->keyidx; - rxkey->key_type = algo; - if (sta) - memcpy(rxkey->mac, sta->addr, ETH_ALEN); - else - memset(rxkey->mac, ~0, ETH_ALEN); - if (key->alg != ALG_TKIP) { - rxkey->key_len = min((u8)16, key->keylen); - memcpy(rxkey->key, key->key, rxkey->key_len); - } else { - rxkey->key_len = 24; - memcpy(rxkey->key, key->key, 16); - memcpy(&(rxkey->key[16]), &(key->key - [NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY]), 8); - } - - priv->tx(dev, skb); - key->hw_key_idx = slot; - -out_unlock: - mutex_unlock(&priv->conf_mutex); - return ret; -} - -#ifdef CONFIG_P54_LEDS -static void p54_update_leds(struct work_struct *work) -{ - struct p54_common *priv = container_of(work, struct p54_common, - led_work.work); - int err, i, tmp, blink_delay = 400; - bool rerun = false; - - /* Don't toggle the LED, when the device is down. */ - if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) - return ; - - for (i = 0; i < ARRAY_SIZE(priv->leds); i++) - if (priv->leds[i].toggled) { - priv->softled_state |= BIT(i); - - tmp = 70 + 200 / (priv->leds[i].toggled); - if (tmp < blink_delay) - blink_delay = tmp; - - if (priv->leds[i].led_dev.brightness == LED_OFF) - rerun = true; - - priv->leds[i].toggled = - !!priv->leds[i].led_dev.brightness; - } else - priv->softled_state &= ~BIT(i); - - err = p54_set_leds(priv->hw); - if (err && net_ratelimit()) - printk(KERN_ERR "%s: failed to update LEDs.\n", - wiphy_name(priv->hw->wiphy)); - - if (rerun) - queue_delayed_work(priv->hw->workqueue, &priv->led_work, - msecs_to_jiffies(blink_delay)); -} - -static void p54_led_brightness_set(struct led_classdev *led_dev, - enum led_brightness brightness) -{ - struct p54_led_dev *led = container_of(led_dev, struct p54_led_dev, - led_dev); - struct ieee80211_hw *dev = led->hw_dev; - struct p54_common *priv = dev->priv; - - if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) - return ; - - if (brightness) { - led->toggled++; - queue_delayed_work(priv->hw->workqueue, &priv->led_work, - HZ/10); - } -} - -static int p54_register_led(struct ieee80211_hw *dev, - unsigned int led_index, - char *name, char *trigger) -{ - struct p54_common *priv = dev->priv; - struct p54_led_dev *led = &priv->leds[led_index]; - int err; - - if (led->registered) - return -EEXIST; - - snprintf(led->name, sizeof(led->name), "p54-%s::%s", - wiphy_name(dev->wiphy), name); - led->hw_dev = dev; - led->index = led_index; - led->led_dev.name = led->name; - led->led_dev.default_trigger = trigger; - led->led_dev.brightness_set = p54_led_brightness_set; - - err = led_classdev_register(wiphy_dev(dev->wiphy), &led->led_dev); - if (err) - printk(KERN_ERR "%s: Failed to register %s LED.\n", - wiphy_name(dev->wiphy), name); - else - led->registered = 1; - - return err; -} - -static int p54_init_leds(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - int err; - - /* - * TODO: - * Figure out if the EEPROM contains some hints about the number - * of available/programmable LEDs of the device. - */ - - INIT_DELAYED_WORK(&priv->led_work, p54_update_leds); - - err = p54_register_led(dev, 0, "assoc", - ieee80211_get_assoc_led_name(dev)); - if (err) - return err; - - err = p54_register_led(dev, 1, "tx", - ieee80211_get_tx_led_name(dev)); - if (err) - return err; - - err = p54_register_led(dev, 2, "rx", - ieee80211_get_rx_led_name(dev)); - if (err) - return err; - - err = p54_register_led(dev, 3, "radio", - ieee80211_get_radio_led_name(dev)); - if (err) - return err; - - err = p54_set_leds(dev); - return err; -} - -static void p54_unregister_leds(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - int i; - - for (i = 0; i < ARRAY_SIZE(priv->leds); i++) - if (priv->leds[i].registered) - led_classdev_unregister(&priv->leds[i].led_dev); -} -#endif /* CONFIG_P54_LEDS */ - -static const struct ieee80211_ops p54_ops = { - .tx = p54_tx, - .start = p54_start, - .stop = p54_stop, - .add_interface = p54_add_interface, - .remove_interface = p54_remove_interface, - .set_tim = p54_set_tim, - .sta_notify = p54_sta_notify, - .set_key = p54_set_key, - .config = p54_config, - .bss_info_changed = p54_bss_info_changed, - .configure_filter = p54_configure_filter, - .conf_tx = p54_conf_tx, - .get_stats = p54_get_stats, - .get_tx_stats = p54_get_tx_stats -}; - -struct ieee80211_hw *p54_init_common(size_t priv_data_len) -{ - struct ieee80211_hw *dev; - struct p54_common *priv; - - dev = ieee80211_alloc_hw(priv_data_len, &p54_ops); - if (!dev) - return NULL; - - priv = dev->priv; - priv->hw = dev; - priv->mode = NL80211_IFTYPE_UNSPECIFIED; - priv->basic_rate_mask = 0x15f; - skb_queue_head_init(&priv->tx_queue); - dev->flags = IEEE80211_HW_RX_INCLUDES_FCS | - IEEE80211_HW_SIGNAL_DBM | - IEEE80211_HW_NOISE_DBM; - - dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | - BIT(NL80211_IFTYPE_ADHOC) | - BIT(NL80211_IFTYPE_AP) | - BIT(NL80211_IFTYPE_MESH_POINT); - - dev->channel_change_time = 1000; /* TODO: find actual value */ - priv->tx_stats[P54_QUEUE_BEACON].limit = 1; - priv->tx_stats[P54_QUEUE_FWSCAN].limit = 1; - priv->tx_stats[P54_QUEUE_MGMT].limit = 3; - priv->tx_stats[P54_QUEUE_CAB].limit = 3; - priv->tx_stats[P54_QUEUE_DATA].limit = 5; - dev->queues = 1; - priv->noise = -94; - /* - * We support at most 8 tries no matter which rate they're at, - * we cannot support max_rates * max_rate_tries as we set it - * here, but setting it correctly to 4/2 or so would limit us - * artificially if the RC algorithm wants just two rates, so - * let's say 4/7, we'll redistribute it at TX time, see the - * comments there. - */ - dev->max_rates = 4; - dev->max_rate_tries = 7; - dev->extra_tx_headroom = sizeof(struct p54_hdr) + 4 + - sizeof(struct p54_tx_data); - - mutex_init(&priv->conf_mutex); - init_completion(&priv->eeprom_comp); - INIT_DELAYED_WORK(&priv->work, p54_work); - - return dev; -} -EXPORT_SYMBOL_GPL(p54_init_common); - -int p54_register_common(struct ieee80211_hw *dev, struct device *pdev) -{ - int err; - - err = ieee80211_register_hw(dev); - if (err) { - dev_err(pdev, "Cannot register device (%d).\n", err); - return err; - } - -#ifdef CONFIG_P54_LEDS - err = p54_init_leds(dev); - if (err) - return err; -#endif /* CONFIG_P54_LEDS */ - - dev_info(pdev, "is registered as '%s'\n", wiphy_name(dev->wiphy)); - return 0; -} -EXPORT_SYMBOL_GPL(p54_register_common); - -void p54_free_common(struct ieee80211_hw *dev) -{ - struct p54_common *priv = dev->priv; - kfree(priv->iq_autocal); - kfree(priv->output_limit); - kfree(priv->curve_data); - kfree(priv->used_rxkeys); - -#ifdef CONFIG_P54_LEDS - p54_unregister_leds(dev); -#endif /* CONFIG_P54_LEDS */ -} -EXPORT_SYMBOL_GPL(p54_free_common); |