diff options
| -rw-r--r-- | drivers/net/wireless/mwl8k.c | 345 |
1 files changed, 214 insertions, 131 deletions
diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index cfda87a595e3..7bd861586983 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -3942,73 +3942,10 @@ 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_init_firmware(struct ieee80211_hw *hw) { - static int printed_version = 0; - struct ieee80211_hw *hw; - struct mwl8k_priv *priv; + struct mwl8k_priv *priv = hw->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); - 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; - } - } - /* Reset firmware and hardware */ mwl8k_hw_reset(priv); @@ -4017,19 +3954,26 @@ static int __devinit mwl8k_probe(struct pci_dev *pdev, rc = mwl8k_request_firmware(priv); if (rc) { wiphy_err(hw->wiphy, "Firmware files not found\n"); - goto err_stop_firmware; + 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; @@ -4046,58 +3990,11 @@ 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) @@ -4137,13 +4034,6 @@ 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) { @@ -4162,12 +4052,6 @@ 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, @@ -4186,14 +4070,213 @@ 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); + 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; + + /* + * 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; + 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; + } + } + + rc = mwl8k_init_firmware(hw); + if (rc) + goto err_stop_firmware; + + rc = mwl8k_firmware_load_success(priv); + if (!rc) + return rc; + err_stop_firmware: mwl8k_hw_reset(priv); - mwl8k_release_firmware(priv); err_iounmap: if (priv->regs != NULL) |