diff options
Diffstat (limited to 'drivers/net/wimax/i2400m/control.c')
| -rw-r--r-- | drivers/net/wimax/i2400m/control.c | 147 |
1 files changed, 125 insertions, 22 deletions
diff --git a/drivers/net/wimax/i2400m/control.c b/drivers/net/wimax/i2400m/control.c index 15d9f51..b3cadb6 100644 --- a/drivers/net/wimax/i2400m/control.c +++ b/drivers/net/wimax/i2400m/control.c @@ -52,7 +52,6 @@ * * i2400m_dev_initalize() Called by i2400m_dev_start() * i2400m_set_init_config() - * i2400m_firmware_check() * i2400m_cmd_get_state() * i2400m_dev_shutdown() Called by i2400m_dev_stop() * i2400m->bus_reset() @@ -942,8 +941,8 @@ error_cmd_failed: /* Firmware interface versions we support */ enum { I2400M_HDIv_MAJOR = 9, - I2400M_HDIv_MAJOR_2 = 8, I2400M_HDIv_MINOR = 1, + I2400M_HDIv_MINOR_2 = 2, }; @@ -959,6 +958,10 @@ enum { * Long function, but quite simple; first chunk launches the command * and double checks the reply for the right TLV. Then we process the * TLV (where the meat is). + * + * Once we process the TLV that gives us the firmware's interface + * version, we encode it and save it in i2400m->fw_version for future + * reference. */ int i2400m_firmware_check(struct i2400m *i2400m) { @@ -1009,22 +1012,20 @@ int i2400m_firmware_check(struct i2400m *i2400m) minor = le16_to_cpu(l4mv->minor); branch = le16_to_cpu(l4mv->branch); result = -EINVAL; - if (major != I2400M_HDIv_MAJOR - && major != I2400M_HDIv_MAJOR_2) { - dev_err(dev, "unsupported major fw interface version " + if (major != I2400M_HDIv_MAJOR) { + dev_err(dev, "unsupported major fw version " "%u.%u.%u\n", major, minor, branch); goto error_bad_major; } - if (major == I2400M_HDIv_MAJOR_2) - dev_err(dev, "deprecated major fw interface version " - "%u.%u.%u\n", major, minor, branch); result = 0; - if (minor != I2400M_HDIv_MINOR) - dev_warn(dev, "untested minor fw firmware version %u.%u.%u\n", + if (minor < I2400M_HDIv_MINOR_2 && minor > I2400M_HDIv_MINOR) + dev_warn(dev, "untested minor fw version %u.%u.%u\n", major, minor, branch); -error_bad_major: + /* Yes, we ignore the branch -- we don't have to track it */ + i2400m->fw_version = major << 16 | minor; dev_info(dev, "firmware interface version %u.%u.%u\n", major, minor, branch); +error_bad_major: error_no_tlv: error_cmd_failed: kfree_skb(ack_skb); @@ -1221,6 +1222,77 @@ EXPORT_SYMBOL_GPL(i2400m_set_init_config); /** + * i2400m_set_idle_timeout - Set the device's idle mode timeout + * + * @i2400m: i2400m device descriptor + * + * @msecs: milliseconds for the timeout to enter idle mode. Between + * 100 to 300000 (5m); 0 to disable. In increments of 100. + * + * After this @msecs of the link being idle (no data being sent or + * received), the device will negotiate with the basestation entering + * idle mode for saving power. The connection is maintained, but + * getting out of it (done in tx.c) will require some negotiation, + * possible crypto re-handshake and a possible DHCP re-lease. + * + * Only available if fw_version >= 0x00090002. + * + * Returns: 0 if ok, < 0 errno code on error. + */ +int i2400m_set_idle_timeout(struct i2400m *i2400m, unsigned msecs) +{ + int result; + struct device *dev = i2400m_dev(i2400m); + struct sk_buff *ack_skb; + struct { + struct i2400m_l3l4_hdr hdr; + struct i2400m_tlv_config_idle_timeout cit; + } *cmd; + const struct i2400m_l3l4_hdr *ack; + size_t ack_len; + char strerr[32]; + + result = -ENOSYS; + if (i2400m_le_v1_3(i2400m)) + goto error_alloc; + result = -ENOMEM; + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + goto error_alloc; + cmd->hdr.type = cpu_to_le16(I2400M_MT_GET_STATE); + cmd->hdr.length = cpu_to_le16(sizeof(*cmd) - sizeof(cmd->hdr)); + cmd->hdr.version = cpu_to_le16(I2400M_L3L4_VERSION); + + cmd->cit.hdr.type = + cpu_to_le16(I2400M_TLV_CONFIG_IDLE_TIMEOUT); + cmd->cit.hdr.length = cpu_to_le16(sizeof(cmd->cit.timeout)); + cmd->cit.timeout = cpu_to_le32(msecs); + + ack_skb = i2400m_msg_to_dev(i2400m, cmd, sizeof(*cmd)); + if (IS_ERR(ack_skb)) { + dev_err(dev, "Failed to issue 'set idle timeout' command: " + "%ld\n", PTR_ERR(ack_skb)); + result = PTR_ERR(ack_skb); + goto error_msg_to_dev; + } + ack = wimax_msg_data_len(ack_skb, &ack_len); + result = i2400m_msg_check_status(ack, strerr, sizeof(strerr)); + if (result < 0) { + dev_err(dev, "'set idle timeout' (0x%04x) command failed: " + "%d - %s\n", I2400M_MT_GET_STATE, result, strerr); + goto error_cmd_failed; + } + result = 0; + kfree_skb(ack_skb); +error_cmd_failed: +error_msg_to_dev: + kfree(cmd); +error_alloc: + return result; +} + + +/** * i2400m_dev_initialize - Initialize the device once communications are ready * * @i2400m: device descriptor @@ -1238,26 +1310,55 @@ int i2400m_dev_initialize(struct i2400m *i2400m) int result; struct device *dev = i2400m_dev(i2400m); struct i2400m_tlv_config_idle_parameters idle_params; + struct i2400m_tlv_config_idle_timeout idle_timeout; + struct i2400m_tlv_config_d2h_data_format df; + struct i2400m_tlv_config_dl_host_reorder dlhr; const struct i2400m_tlv_hdr *args[9]; unsigned argc = 0; d_fnstart(3, dev, "(i2400m %p)\n", i2400m); - /* Useless for now...might change */ + /* Disable idle mode? (enabled by default) */ if (i2400m_idle_mode_disabled) { - idle_params.hdr.type = - cpu_to_le16(I2400M_TLV_CONFIG_IDLE_PARAMETERS); - idle_params.hdr.length = cpu_to_le16( - sizeof(idle_params) - sizeof(idle_params.hdr)); - idle_params.idle_timeout = 0; - idle_params.idle_paging_interval = 0; - args[argc++] = &idle_params.hdr; + if (i2400m_le_v1_3(i2400m)) { + idle_params.hdr.type = + cpu_to_le16(I2400M_TLV_CONFIG_IDLE_PARAMETERS); + idle_params.hdr.length = cpu_to_le16( + sizeof(idle_params) - sizeof(idle_params.hdr)); + idle_params.idle_timeout = 0; + idle_params.idle_paging_interval = 0; + args[argc++] = &idle_params.hdr; + } else { + idle_timeout.hdr.type = + cpu_to_le16(I2400M_TLV_CONFIG_IDLE_TIMEOUT); + idle_timeout.hdr.length = cpu_to_le16( + sizeof(idle_timeout) - sizeof(idle_timeout.hdr)); + idle_timeout.timeout = 0; + args[argc++] = &idle_timeout.hdr; + } + } + if (i2400m_ge_v1_4(i2400m)) { + /* Enable extended RX data format? */ + df.hdr.type = + cpu_to_le16(I2400M_TLV_CONFIG_D2H_DATA_FORMAT); + df.hdr.length = cpu_to_le16( + sizeof(df) - sizeof(df.hdr)); + df.format = 1; + args[argc++] = &df.hdr; + + /* Enable RX data reordering? + * (switch flipped in rx.c:i2400m_rx_setup() after fw upload) */ + if (i2400m->rx_reorder) { + dlhr.hdr.type = + cpu_to_le16(I2400M_TLV_CONFIG_DL_HOST_REORDER); + dlhr.hdr.length = cpu_to_le16( + sizeof(dlhr) - sizeof(dlhr.hdr)); + dlhr.reorder = 1; + args[argc++] = &dlhr.hdr; + } } result = i2400m_set_init_config(i2400m, args, argc); if (result < 0) goto error; - result = i2400m_firmware_check(i2400m); /* fw versions ok? */ - if (result < 0) - goto error; /* * Update state: Here it just calls a get state; parsing the * result (System State TLV and RF Status TLV [done in the rx @@ -1266,6 +1367,8 @@ int i2400m_dev_initialize(struct i2400m *i2400m) */ result = i2400m_cmd_get_state(i2400m); error: + if (result < 0) + dev_err(dev, "failed to initialize the device: %d\n", result); d_fnend(3, dev, "(i2400m %p) = %d\n", i2400m, result); return result; } |