diff options
Diffstat (limited to 'drivers/net/wireless/mwl8k.c')
| -rw-r--r-- | drivers/net/wireless/mwl8k.c | 677 |
1 files changed, 521 insertions, 156 deletions
diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 1bbcd7c1d02a..9ecf8407cb1b 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -29,6 +29,12 @@ #define MWL8K_NAME KBUILD_MODNAME #define MWL8K_VERSION "0.12" +/* Module parameters */ +static unsigned ap_mode_default; +module_param(ap_mode_default, bool, 0); +MODULE_PARM_DESC(ap_mode_default, + "Set to 1 to make ap mode the default instead of sta mode"); + /* Register definitions */ #define MWL8K_HIU_GEN_PTR 0x00000c10 #define MWL8K_MODE_STA 0x0000005a @@ -92,8 +98,10 @@ struct rxd_ops { struct mwl8k_device_info { char *part_name; char *helper_image; - char *fw_image; + char *fw_image_sta; + char *fw_image_ap; struct rxd_ops *ap_rxd_ops; + u32 fw_api_ap; }; struct mwl8k_rx_queue { @@ -136,8 +144,8 @@ struct mwl8k_priv { void __iomem *regs; /* firmware */ - struct firmware *fw_helper; - struct firmware *fw_ucode; + const struct firmware *fw_helper; + const struct firmware *fw_ucode; /* hardware/firmware parameters */ bool ap_fw; @@ -210,6 +218,18 @@ struct mwl8k_priv { /* Most recently reported noise in dBm */ s8 noise; + + /* + * preserve the queue configurations so they can be restored if/when + * the firmware image is swapped. + */ + struct ieee80211_tx_queue_params wmm_params[MWL8K_TX_QUEUES]; + + /* async firmware loading state */ + unsigned fw_state; + char *fw_pref; + char *fw_alt; + struct completion firmware_loading_complete; }; /* Per interface specific private data */ @@ -285,8 +305,9 @@ static const struct ieee80211_rate mwl8k_rates_50[] = { }; /* Set or get info from Firmware */ -#define MWL8K_CMD_SET 0x0001 #define MWL8K_CMD_GET 0x0000 +#define MWL8K_CMD_SET 0x0001 +#define MWL8K_CMD_SET_LIST 0x0002 /* Firmware command codes */ #define MWL8K_CMD_CODE_DNLD 0x0001 @@ -296,6 +317,7 @@ static const struct ieee80211_rate mwl8k_rates_50[] = { #define MWL8K_CMD_GET_STAT 0x0014 #define MWL8K_CMD_RADIO_CONTROL 0x001c #define MWL8K_CMD_RF_TX_POWER 0x001e +#define MWL8K_CMD_TX_POWER 0x001f #define MWL8K_CMD_RF_ANTENNA 0x0020 #define MWL8K_CMD_SET_BEACON 0x0100 /* per-vif */ #define MWL8K_CMD_SET_PRE_SCAN 0x0107 @@ -333,6 +355,7 @@ static const char *mwl8k_cmd_name(__le16 cmd, char *buf, int bufsize) MWL8K_CMDNAME(GET_STAT); MWL8K_CMDNAME(RADIO_CONTROL); MWL8K_CMDNAME(RF_TX_POWER); + MWL8K_CMDNAME(TX_POWER); MWL8K_CMDNAME(RF_ANTENNA); MWL8K_CMDNAME(SET_BEACON); MWL8K_CMDNAME(SET_PRE_SCAN); @@ -372,7 +395,7 @@ static void mwl8k_hw_reset(struct mwl8k_priv *priv) } /* Release fw image */ -static void mwl8k_release_fw(struct firmware **fw) +static void mwl8k_release_fw(const struct firmware **fw) { if (*fw == NULL) return; @@ -386,37 +409,68 @@ static void mwl8k_release_firmware(struct mwl8k_priv *priv) mwl8k_release_fw(&priv->fw_helper); } +/* states for asynchronous f/w loading */ +static void mwl8k_fw_state_machine(const struct firmware *fw, void *context); +enum { + FW_STATE_INIT = 0, + FW_STATE_LOADING_PREF, + FW_STATE_LOADING_ALT, + FW_STATE_ERROR, +}; + /* Request fw image */ static int mwl8k_request_fw(struct mwl8k_priv *priv, - const char *fname, struct firmware **fw) + const char *fname, const struct firmware **fw, + bool nowait) { /* release current image */ if (*fw != NULL) mwl8k_release_fw(fw); - return request_firmware((const struct firmware **)fw, - fname, &priv->pdev->dev); + if (nowait) + return request_firmware_nowait(THIS_MODULE, 1, fname, + &priv->pdev->dev, GFP_KERNEL, + priv, mwl8k_fw_state_machine); + else + return request_firmware(fw, fname, &priv->pdev->dev); } -static int mwl8k_request_firmware(struct mwl8k_priv *priv) +static int mwl8k_request_firmware(struct mwl8k_priv *priv, char *fw_image, + bool nowait) { struct mwl8k_device_info *di = priv->device_info; int rc; if (di->helper_image != NULL) { - rc = mwl8k_request_fw(priv, di->helper_image, &priv->fw_helper); - if (rc) { - printk(KERN_ERR "%s: Error requesting helper " - "firmware file %s\n", pci_name(priv->pdev), - di->helper_image); + if (nowait) + rc = mwl8k_request_fw(priv, di->helper_image, + &priv->fw_helper, true); + else + rc = mwl8k_request_fw(priv, di->helper_image, + &priv->fw_helper, false); + if (rc) + printk(KERN_ERR "%s: Error requesting helper fw %s\n", + pci_name(priv->pdev), di->helper_image); + + if (rc || nowait) return rc; - } } - rc = mwl8k_request_fw(priv, di->fw_image, &priv->fw_ucode); + if (nowait) { + /* + * if we get here, no helper image is needed. Skip the + * FW_STATE_INIT state. + */ + priv->fw_state = FW_STATE_LOADING_PREF; + rc = mwl8k_request_fw(priv, fw_image, + &priv->fw_ucode, + true); + } else + rc = mwl8k_request_fw(priv, fw_image, + &priv->fw_ucode, false); if (rc) { printk(KERN_ERR "%s: Error requesting firmware file %s\n", - pci_name(priv->pdev), di->fw_image); + pci_name(priv->pdev), fw_image); mwl8k_release_fw(&priv->fw_helper); return rc; } @@ -577,12 +631,12 @@ static int mwl8k_feed_fw_image(struct mwl8k_priv *priv, static int mwl8k_load_firmware(struct ieee80211_hw *hw) { struct mwl8k_priv *priv = hw->priv; - struct firmware *fw = priv->fw_ucode; + const struct firmware *fw = priv->fw_ucode; int rc; int loops; if (!memcmp(fw->data, "\x01\x00\x00\x00", 4)) { - struct firmware *helper = priv->fw_helper; + const struct firmware *helper = priv->fw_helper; if (helper == NULL) { printk(KERN_ERR "%s: helper image needed but none " @@ -1125,12 +1179,10 @@ struct mwl8k_tx_desc { __le32 reserved; __le16 rate_info; __u8 peer_id; - __u8 xmitcontrol; + __u8 tx_frag_cnt; } __packed; #define MWL8K_TX_DESCS 128 -#define MWL8K_XMITCONTROL_NON_AMPDU 0x04 - static int mwl8k_txq_init(struct ieee80211_hw *hw, int index) { @@ -1450,9 +1502,6 @@ mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb) tx->peer_id = MWL8K_STA(tx_info->control.sta)->peer_id; else tx->peer_id = 0; - - if (priv->ap_fw) - tx->xmitcontrol = MWL8K_XMITCONTROL_NON_AMPDU; wmb(); tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus); @@ -1816,6 +1865,7 @@ struct mwl8k_cmd_get_hw_spec_ap { __le32 wcbbase1; __le32 wcbbase2; __le32 wcbbase3; + __le32 fw_api_version; } __packed; static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw *hw) @@ -1823,6 +1873,7 @@ static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw *hw) struct mwl8k_priv *priv = hw->priv; struct mwl8k_cmd_get_hw_spec_ap *cmd; int rc; + u32 api_version; cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); if (cmd == NULL) @@ -1839,6 +1890,16 @@ static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw *hw) if (!rc) { int off; + api_version = le32_to_cpu(cmd->fw_api_version); + if (priv->device_info->fw_api_ap != api_version) { + printk(KERN_ERR "%s: Unsupported fw API version for %s." + " Expected %d got %d.\n", MWL8K_NAME, + priv->device_info->part_name, + priv->device_info->fw_api_ap, + api_version); + rc = -EINVAL; + goto done; + } SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr); priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs); priv->fw_rev = le32_to_cpu(cmd->fw_rev); @@ -1866,6 +1927,7 @@ static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw *hw) iowrite32(priv->txq[3].txd_dma, priv->sram + off); } +done: kfree(cmd); return rc; } @@ -2089,7 +2151,7 @@ mwl8k_set_radio_preamble(struct ieee80211_hw *hw, bool short_preamble) /* * CMD_RF_TX_POWER. */ -#define MWL8K_TX_POWER_LEVEL_TOTAL 8 +#define MWL8K_RF_TX_POWER_LEVEL_TOTAL 8 struct mwl8k_cmd_rf_tx_power { struct mwl8k_cmd_pkt header; @@ -2097,7 +2159,7 @@ struct mwl8k_cmd_rf_tx_power { __le16 support_level; __le16 current_level; __le16 reserved; - __le16 power_level_list[MWL8K_TX_POWER_LEVEL_TOTAL]; + __le16 power_level_list[MWL8K_RF_TX_POWER_LEVEL_TOTAL]; } __packed; static int mwl8k_cmd_rf_tx_power(struct ieee80211_hw *hw, int dBm) @@ -2121,6 +2183,65 @@ static int mwl8k_cmd_rf_tx_power(struct ieee80211_hw *hw, int dBm) } /* + * CMD_TX_POWER. + */ +#define MWL8K_TX_POWER_LEVEL_TOTAL 12 + +struct mwl8k_cmd_tx_power { + struct mwl8k_cmd_pkt header; + __le16 action; + __le16 band; + __le16 channel; + __le16 bw; + __le16 sub_ch; + __le16 power_level_list[MWL8K_TX_POWER_LEVEL_TOTAL]; +} __attribute__((packed)); + +static int mwl8k_cmd_tx_power(struct ieee80211_hw *hw, + struct ieee80211_conf *conf, + unsigned short pwr) +{ + struct ieee80211_channel *channel = conf->channel; + struct mwl8k_cmd_tx_power *cmd; + int rc; + int i; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_TX_POWER); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + cmd->action = cpu_to_le16(MWL8K_CMD_SET_LIST); + + if (channel->band == IEEE80211_BAND_2GHZ) + cmd->band = cpu_to_le16(0x1); + else if (channel->band == IEEE80211_BAND_5GHZ) + cmd->band = cpu_to_le16(0x4); + + cmd->channel = channel->hw_value; + + if (conf->channel_type == NL80211_CHAN_NO_HT || + conf->channel_type == NL80211_CHAN_HT20) { + cmd->bw = cpu_to_le16(0x2); + } else { + cmd->bw = cpu_to_le16(0x4); + if (conf->channel_type == NL80211_CHAN_HT40MINUS) + cmd->sub_ch = cpu_to_le16(0x3); + else if (conf->channel_type == NL80211_CHAN_HT40PLUS) + cmd->sub_ch = cpu_to_le16(0x1); + } + + for (i = 0; i < MWL8K_TX_POWER_LEVEL_TOTAL; i++) + cmd->power_level_list[i] = cpu_to_le16(pwr); + + rc = mwl8k_post_cmd(hw, &cmd->header); + kfree(cmd); + + return rc; +} + +/* * CMD_RF_ANTENNA. */ struct mwl8k_cmd_rf_antenna { @@ -3288,13 +3409,16 @@ static void mwl8k_stop(struct ieee80211_hw *hw) mwl8k_txq_reclaim(hw, i, INT_MAX, 1); } +static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image); + static int mwl8k_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { struct mwl8k_priv *priv = hw->priv; struct mwl8k_vif *mwl8k_vif; u32 macids_supported; - int macid; + int macid, rc; + struct mwl8k_device_info *di; /* * Reject interface creation if sniffer mode is active, as @@ -3307,12 +3431,28 @@ static int mwl8k_add_interface(struct ieee80211_hw *hw, return -EINVAL; } - + di = priv->device_info; switch (vif->type) { case NL80211_IFTYPE_AP: + if (!priv->ap_fw && di->fw_image_ap) { + /* we must load the ap fw to meet this request */ + if (!list_empty(&priv->vif_list)) + return -EBUSY; + rc = mwl8k_reload_firmware(hw, di->fw_image_ap); + if (rc) + return rc; + } macids_supported = priv->ap_macids_supported; break; case NL80211_IFTYPE_STATION: + if (priv->ap_fw && di->fw_image_sta) { + /* we must load the sta fw to meet this request */ + if (!list_empty(&priv->vif_list)) + return -EBUSY; + rc = mwl8k_reload_firmware(hw, di->fw_image_sta); + if (rc) + return rc; + } macids_supported = priv->sta_macids_supported; break; default: @@ -3382,15 +3522,19 @@ static int mwl8k_config(struct ieee80211_hw *hw, u32 changed) if (conf->power_level > 18) conf->power_level = 18; - rc = mwl8k_cmd_rf_tx_power(hw, conf->power_level); - if (rc) - goto out; if (priv->ap_fw) { + rc = mwl8k_cmd_tx_power(hw, conf, conf->power_level); + if (rc) + goto out; + rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_RX, 0x7); if (!rc) rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_TX, 0x7); } else { + rc = mwl8k_cmd_rf_tx_power(hw, conf->power_level); + if (rc) + goto out; rc = mwl8k_cmd_mimo_config(hw, 0x7, 0x7); } @@ -3744,6 +3888,9 @@ static int mwl8k_conf_tx(struct ieee80211_hw *hw, u16 queue, rc = mwl8k_fw_lock(hw); if (!rc) { + BUG_ON(queue > MWL8K_TX_QUEUES - 1); + memcpy(&priv->wmm_params[queue], params, sizeof(*params)); + if (!priv->wmm_enabled) rc = mwl8k_cmd_set_wmm_mode(hw, 1); @@ -3843,21 +3990,27 @@ enum { MWL8366, }; +#define MWL8K_8366_AP_FW_API 1 +#define _MWL8K_8366_AP_FW(api) "mwl8k/fmimage_8366_ap-" #api ".fw" +#define MWL8K_8366_AP_FW(api) _MWL8K_8366_AP_FW(api) + static struct mwl8k_device_info mwl8k_info_tbl[] __devinitdata = { [MWL8363] = { .part_name = "88w8363", .helper_image = "mwl8k/helper_8363.fw", - .fw_image = "mwl8k/fmimage_8363.fw", + .fw_image_sta = "mwl8k/fmimage_8363.fw", }, [MWL8687] = { .part_name = "88w8687", .helper_image = "mwl8k/helper_8687.fw", - .fw_image = "mwl8k/fmimage_8687.fw", + .fw_image_sta = "mwl8k/fmimage_8687.fw", }, [MWL8366] = { .part_name = "88w8366", .helper_image = "mwl8k/helper_8366.fw", - .fw_image = "mwl8k/fmimage_8366.fw", + .fw_image_sta = "mwl8k/fmimage_8366.fw", + .fw_image_ap = MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API), + .fw_api_ap = MWL8K_8366_AP_FW_API, .ap_rxd_ops = &rxd_8366_ap_ops, }, }; @@ -3868,6 +4021,7 @@ MODULE_FIRMWARE("mwl8k/helper_8687.fw"); MODULE_FIRMWARE("mwl8k/fmimage_8687.fw"); MODULE_FIRMWARE("mwl8k/helper_8366.fw"); MODULE_FIRMWARE("mwl8k/fmimage_8366.fw"); +MODULE_FIRMWARE(MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API)); static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table) = { { PCI_VDEVICE(MARVELL, 0x2a0a), .driver_data = MWL8363, }, @@ -3881,94 +4035,133 @@ static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table) = { }; MODULE_DEVICE_TABLE(pci, mwl8k_pci_id_table); -static int __devinit mwl8k_probe(struct pci_dev *pdev, - const struct pci_device_id *id) +static int mwl8k_request_alt_fw(struct mwl8k_priv *priv) { - static int printed_version = 0; - struct ieee80211_hw *hw; - struct mwl8k_priv *priv; int rc; - int i; - - if (!printed_version) { - printk(KERN_INFO "%s version %s\n", MWL8K_DESC, MWL8K_VERSION); - printed_version = 1; - } - - - rc = pci_enable_device(pdev); + printk(KERN_ERR "%s: Error requesting preferred fw %s.\n" + "Trying alternative firmware %s\n", pci_name(priv->pdev), + priv->fw_pref, priv->fw_alt); + rc = mwl8k_request_fw(priv, priv->fw_alt, &priv->fw_ucode, true); if (rc) { - printk(KERN_ERR "%s: Cannot enable new PCI device\n", - MWL8K_NAME); + printk(KERN_ERR "%s: Error requesting alt fw %s\n", + pci_name(priv->pdev), priv->fw_alt); return rc; } + return 0; +} - rc = pci_request_regions(pdev, MWL8K_NAME); - if (rc) { - printk(KERN_ERR "%s: Cannot obtain PCI resources\n", - MWL8K_NAME); - goto err_disable_device; - } - - pci_set_master(pdev); - - - hw = ieee80211_alloc_hw(sizeof(*priv), &mwl8k_ops); - if (hw == NULL) { - printk(KERN_ERR "%s: ieee80211 alloc failed\n", MWL8K_NAME); - rc = -ENOMEM; - goto err_free_reg; - } +static int mwl8k_firmware_load_success(struct mwl8k_priv *priv); +static void mwl8k_fw_state_machine(const struct firmware *fw, void *context) +{ + struct mwl8k_priv *priv = context; + struct mwl8k_device_info *di = priv->device_info; + int rc; - SET_IEEE80211_DEV(hw, &pdev->dev); - pci_set_drvdata(pdev, hw); + switch (priv->fw_state) { + case FW_STATE_INIT: + if (!fw) { + printk(KERN_ERR "%s: Error requesting helper fw %s\n", + pci_name(priv->pdev), di->helper_image); + goto fail; + } + priv->fw_helper = fw; + rc = mwl8k_request_fw(priv, priv->fw_pref, &priv->fw_ucode, + true); + if (rc && priv->fw_alt) { + rc = mwl8k_request_alt_fw(priv); + if (rc) + goto fail; + priv->fw_state = FW_STATE_LOADING_ALT; + } else if (rc) + goto fail; + else + priv->fw_state = FW_STATE_LOADING_PREF; + break; - priv = hw->priv; - priv->hw = hw; - priv->pdev = pdev; - priv->device_info = &mwl8k_info_tbl[id->driver_data]; + case FW_STATE_LOADING_PREF: + if (!fw) { + if (priv->fw_alt) { + rc = mwl8k_request_alt_fw(priv); + if (rc) + goto fail; + priv->fw_state = FW_STATE_LOADING_ALT; + } else + goto fail; + } else { + priv->fw_ucode = fw; + rc = mwl8k_firmware_load_success(priv); + if (rc) + goto fail; + else + complete(&priv->firmware_loading_complete); + } + break; + case FW_STATE_LOADING_ALT: + if (!fw) { + printk(KERN_ERR "%s: Error requesting alt fw %s\n", + pci_name(priv->pdev), di->helper_image); + goto fail; + } + priv->fw_ucode = fw; + rc = mwl8k_firmware_load_success(priv); + if (rc) + goto fail; + else + complete(&priv->firmware_loading_complete); + break; - priv->sram = pci_iomap(pdev, 0, 0x10000); - if (priv->sram == NULL) { - wiphy_err(hw->wiphy, "Cannot map device SRAM\n"); - goto err_iounmap; + default: + printk(KERN_ERR "%s: Unexpected firmware loading state: %d\n", + MWL8K_NAME, priv->fw_state); + BUG_ON(1); } - /* - * If BAR0 is a 32 bit BAR, the register BAR will be BAR1. - * If BAR0 is a 64 bit BAR, the register BAR will be BAR2. - */ - priv->regs = pci_iomap(pdev, 1, 0x10000); - if (priv->regs == NULL) { - priv->regs = pci_iomap(pdev, 2, 0x10000); - if (priv->regs == NULL) { - wiphy_err(hw->wiphy, "Cannot map device registers\n"); - goto err_iounmap; - } - } + return; +fail: + priv->fw_state = FW_STATE_ERROR; + complete(&priv->firmware_loading_complete); + device_release_driver(&priv->pdev->dev); + mwl8k_release_firmware(priv); +} + +static int mwl8k_init_firmware(struct ieee80211_hw *hw, char *fw_image, + bool nowait) +{ + struct mwl8k_priv *priv = hw->priv; + int rc; /* Reset firmware and hardware */ mwl8k_hw_reset(priv); /* Ask userland hotplug daemon for the device firmware */ - rc = mwl8k_request_firmware(priv); + rc = mwl8k_request_firmware(priv, fw_image, nowait); if (rc) { wiphy_err(hw->wiphy, "Firmware files not found\n"); - goto err_stop_firmware; + return rc; } + if (nowait) + return rc; + /* Load firmware into hardware */ rc = mwl8k_load_firmware(hw); - if (rc) { + if (rc) wiphy_err(hw->wiphy, "Cannot start firmware\n"); - goto err_stop_firmware; - } /* Reclaim memory once firmware is successfully loaded */ mwl8k_release_firmware(priv); + return rc; +} + +/* initialize hw after successfully loading a firmware image */ +static int mwl8k_probe_hw(struct ieee80211_hw *hw) +{ + struct mwl8k_priv *priv = hw->priv; + int rc = 0; + int i; if (priv->ap_fw) { priv->rxd_ops = priv->device_info->ap_rxd_ops; @@ -3985,58 +4178,11 @@ static int __devinit mwl8k_probe(struct pci_dev *pdev, priv->wmm_enabled = false; priv->pending_tx_pkts = 0; - - /* - * Extra headroom is the size of the required DMA header - * minus the size of the smallest 802.11 frame (CTS frame). - */ - hw->extra_tx_headroom = - sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts); - - hw->channel_change_time = 10; - - hw->queues = MWL8K_TX_QUEUES; - - /* Set rssi values to dBm */ - hw->flags |= IEEE80211_HW_SIGNAL_DBM; - hw->vif_data_size = sizeof(struct mwl8k_vif); - hw->sta_data_size = sizeof(struct mwl8k_sta); - - priv->macids_used = 0; - INIT_LIST_HEAD(&priv->vif_list); - - /* Set default radio state and preamble */ - priv->radio_on = 0; - priv->radio_short_preamble = 0; - - /* Finalize join worker */ - INIT_WORK(&priv->finalize_join_worker, mwl8k_finalize_join_worker); - - /* TX reclaim and RX tasklets. */ - tasklet_init(&priv->poll_tx_task, mwl8k_tx_poll, (unsigned long)hw); - tasklet_disable(&priv->poll_tx_task); - tasklet_init(&priv->poll_rx_task, mwl8k_rx_poll, (unsigned long)hw); - tasklet_disable(&priv->poll_rx_task); - - /* Power management cookie */ - priv->cookie = pci_alloc_consistent(priv->pdev, 4, &priv->cookie_dma); - if (priv->cookie == NULL) - goto err_stop_firmware; - rc = mwl8k_rxq_init(hw, 0); if (rc) - goto err_free_cookie; + goto err_stop_firmware; rxq_refill(hw, 0, INT_MAX); - mutex_init(&priv->fw_mutex); - priv->fw_mutex_owner = NULL; - priv->fw_mutex_depth = 0; - priv->hostcmd_wait = NULL; - - spin_lock_init(&priv->tx_lock); - - priv->tx_wait = NULL; - for (i = 0; i < MWL8K_TX_QUEUES; i++) { rc = mwl8k_txq_init(hw, i); if (rc) @@ -4076,13 +4222,6 @@ static int __devinit mwl8k_probe(struct pci_dev *pdev, goto err_free_irq; } - hw->wiphy->interface_modes = 0; - if (priv->ap_macids_supported) - hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP); - if (priv->sta_macids_supported) - hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_STATION); - - /* Turn radio off */ rc = mwl8k_cmd_radio_disable(hw); if (rc) { @@ -4101,12 +4240,6 @@ static int __devinit mwl8k_probe(struct pci_dev *pdev, iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); free_irq(priv->pdev->irq, hw); - rc = ieee80211_register_hw(hw); - if (rc) { - wiphy_err(hw->wiphy, "Cannot register device\n"); - goto err_free_queues; - } - wiphy_info(hw->wiphy, "%s v%d, %pm, %s firmware %u.%u.%u.%u\n", priv->device_info->part_name, priv->hw_rev, hw->wiphy->perm_addr, @@ -4125,14 +4258,238 @@ err_free_queues: mwl8k_txq_deinit(hw, i); mwl8k_rxq_deinit(hw, 0); +err_stop_firmware: + mwl8k_hw_reset(priv); + + return rc; +} + +/* + * invoke mwl8k_reload_firmware to change the firmware image after the device + * has already been registered + */ +static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image) +{ + int i, rc = 0; + struct mwl8k_priv *priv = hw->priv; + + mwl8k_stop(hw); + mwl8k_rxq_deinit(hw, 0); + + for (i = 0; i < MWL8K_TX_QUEUES; i++) + mwl8k_txq_deinit(hw, i); + + rc = mwl8k_init_firmware(hw, fw_image, false); + if (rc) + goto fail; + + rc = mwl8k_probe_hw(hw); + if (rc) + goto fail; + + rc = mwl8k_start(hw); + if (rc) + goto fail; + + rc = mwl8k_config(hw, ~0); + if (rc) + goto fail; + + for (i = 0; i < MWL8K_TX_QUEUES; i++) { + rc = mwl8k_conf_tx(hw, i, &priv->wmm_params[i]); + if (rc) + goto fail; + } + + return rc; + +fail: + printk(KERN_WARNING "mwl8k: Failed to reload firmware image.\n"); + return rc; +} + +static int mwl8k_firmware_load_success(struct mwl8k_priv *priv) +{ + struct ieee80211_hw *hw = priv->hw; + int i, rc; + + rc = mwl8k_load_firmware(hw); + mwl8k_release_firmware(priv); + if (rc) { + wiphy_err(hw->wiphy, "Cannot start firmware\n"); + return rc; + } + + /* + * Extra headroom is the size of the required DMA header + * minus the size of the smallest 802.11 frame (CTS frame). + */ + hw->extra_tx_headroom = + sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts); + + hw->channel_change_time = 10; + + hw->queues = MWL8K_TX_QUEUES; + + /* Set rssi values to dBm */ + hw->flags |= IEEE80211_HW_SIGNAL_DBM; + hw->vif_data_size = sizeof(struct mwl8k_vif); + hw->sta_data_size = sizeof(struct mwl8k_sta); + + priv->macids_used = 0; + INIT_LIST_HEAD(&priv->vif_list); + + /* Set default radio state and preamble */ + priv->radio_on = 0; + priv->radio_short_preamble = 0; + + /* Finalize join worker */ + INIT_WORK(&priv->finalize_join_worker, mwl8k_finalize_join_worker); + + /* TX reclaim and RX tasklets. */ + tasklet_init(&priv->poll_tx_task, mwl8k_tx_poll, (unsigned long)hw); + tasklet_disable(&priv->poll_tx_task); + tasklet_init(&priv->poll_rx_task, mwl8k_rx_poll, (unsigned long)hw); + tasklet_disable(&priv->poll_rx_task); + + /* Power management cookie */ + priv->cookie = pci_alloc_consistent(priv->pdev, 4, &priv->cookie_dma); + if (priv->cookie == NULL) + return -ENOMEM; + + mutex_init(&priv->fw_mutex); + priv->fw_mutex_owner = NULL; + priv->fw_mutex_depth = 0; + priv->hostcmd_wait = NULL; + + spin_lock_init(&priv->tx_lock); + + priv->tx_wait = NULL; + + rc = mwl8k_probe_hw(hw); + if (rc) + goto err_free_cookie; + + hw->wiphy->interface_modes = 0; + if (priv->ap_macids_supported || priv->device_info->fw_image_ap) + hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP); + if (priv->sta_macids_supported || priv->device_info->fw_image_sta) + hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_STATION); + + rc = ieee80211_register_hw(hw); + if (rc) { + wiphy_err(hw->wiphy, "Cannot register device\n"); + goto err_unprobe_hw; + } + + return 0; + +err_unprobe_hw: + for (i = 0; i < MWL8K_TX_QUEUES; i++) + mwl8k_txq_deinit(hw, i); + mwl8k_rxq_deinit(hw, 0); + err_free_cookie: if (priv->cookie != NULL) pci_free_consistent(priv->pdev, 4, priv->cookie, priv->cookie_dma); + return rc; +} +static int __devinit mwl8k_probe(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + static int printed_version; + struct ieee80211_hw *hw; + struct mwl8k_priv *priv; + struct mwl8k_device_info *di; + int rc; + + if (!printed_version) { + printk(KERN_INFO "%s version %s\n", MWL8K_DESC, MWL8K_VERSION); + printed_version = 1; + } + + + rc = pci_enable_device(pdev); + if (rc) { + printk(KERN_ERR "%s: Cannot enable new PCI device\n", + MWL8K_NAME); + return rc; + } + + rc = pci_request_regions(pdev, MWL8K_NAME); + if (rc) { + printk(KERN_ERR "%s: Cannot obtain PCI resources\n", + MWL8K_NAME); + goto err_disable_device; + } + + pci_set_master(pdev); + + + hw = ieee80211_alloc_hw(sizeof(*priv), &mwl8k_ops); + if (hw == NULL) { + printk(KERN_ERR "%s: ieee80211 alloc failed\n", MWL8K_NAME); + rc = -ENOMEM; + goto err_free_reg; + } + + SET_IEEE80211_DEV(hw, &pdev->dev); + pci_set_drvdata(pdev, hw); + + priv = hw->priv; + priv->hw = hw; + priv->pdev = pdev; + priv->device_info = &mwl8k_info_tbl[id->driver_data]; + + + priv->sram = pci_iomap(pdev, 0, 0x10000); + if (priv->sram == NULL) { + wiphy_err(hw->wiphy, "Cannot map device SRAM\n"); + goto err_iounmap; + } + + /* + * If BAR0 is a 32 bit BAR, the register BAR will be BAR1. + * If BAR0 is a 64 bit BAR, the register BAR will be BAR2. + */ + priv->regs = pci_iomap(pdev, 1, 0x10000); + if (priv->regs == NULL) { + priv->regs = pci_iomap(pdev, 2, 0x10000); + if (priv->regs == NULL) { + wiphy_err(hw->wiphy, "Cannot map device registers\n"); + goto err_iounmap; + } + } + + /* + * Choose the initial fw image depending on user input. If a second + * image is available, make it the alternative image that will be + * loaded if the first one fails. + */ + init_completion(&priv->firmware_loading_complete); + di = priv->device_info; + if (ap_mode_default && di->fw_image_ap) { + priv->fw_pref = di->fw_image_ap; + priv->fw_alt = di->fw_image_sta; + } else if (!ap_mode_default && di->fw_image_sta) { + priv->fw_pref = di->fw_image_sta; + priv->fw_alt = di->fw_image_ap; + } else if (ap_mode_default && !di->fw_image_ap && di->fw_image_sta) { + printk(KERN_WARNING "AP fw is unavailable. Using STA fw."); + priv->fw_pref = di->fw_image_sta; + } else if (!ap_mode_default && !di->fw_image_sta && di->fw_image_ap) { + printk(KERN_WARNING "STA fw is unavailable. Using AP fw."); + priv->fw_pref = di->fw_image_ap; + } + rc = mwl8k_init_firmware(hw, priv->fw_pref, true); + if (rc) + goto err_stop_firmware; + return rc; + err_stop_firmware: mwl8k_hw_reset(priv); - mwl8k_release_firmware(priv); err_iounmap: if (priv->regs != NULL) @@ -4168,6 +4525,13 @@ static void __devexit mwl8k_remove(struct pci_dev *pdev) return; priv = hw->priv; + wait_for_completion(&priv->firmware_loading_complete); + + if (priv->fw_state == FW_STATE_ERROR) { + mwl8k_hw_reset(priv); + goto unmap; + } + ieee80211_stop_queues(hw); ieee80211_unregister_hw(hw); @@ -4190,6 +4554,7 @@ static void __devexit mwl8k_remove(struct pci_dev *pdev) pci_free_consistent(priv->pdev, 4, priv->cookie, priv->cookie_dma); +unmap: pci_iounmap(pdev, priv->regs); pci_iounmap(pdev, priv->sram); pci_set_drvdata(pdev, NULL); |