diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/hif_usb.c')
-rw-r--r-- | drivers/net/wireless/ath/ath9k/hif_usb.c | 236 |
1 files changed, 134 insertions, 102 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c index dfb6560dab92..5ab3084eb9cb 100644 --- a/drivers/net/wireless/ath/ath9k/hif_usb.c +++ b/drivers/net/wireless/ath/ath9k/hif_usb.c @@ -28,10 +28,7 @@ MODULE_FIRMWARE(FIRMWARE_AR9271); static struct usb_device_id ath9k_hif_usb_ids[] = { { USB_DEVICE(0x0cf3, 0x9271) }, /* Atheros */ { USB_DEVICE(0x0cf3, 0x1006) }, /* Atheros */ - { USB_DEVICE(0x0cf3, 0x7010) }, /* Atheros */ - { USB_DEVICE(0x0cf3, 0x7015) }, /* Atheros */ { USB_DEVICE(0x0846, 0x9030) }, /* Netgear N150 */ - { USB_DEVICE(0x0846, 0x9018) }, /* Netgear WNDA3200 */ { USB_DEVICE(0x07D1, 0x3A10) }, /* Dlink Wireless 150 */ { USB_DEVICE(0x13D3, 0x3327) }, /* Azurewave */ { USB_DEVICE(0x13D3, 0x3328) }, /* Azurewave */ @@ -40,9 +37,21 @@ static struct usb_device_id ath9k_hif_usb_ids[] = { { USB_DEVICE(0x13D3, 0x3349) }, /* Azurewave */ { USB_DEVICE(0x13D3, 0x3350) }, /* Azurewave */ { USB_DEVICE(0x04CA, 0x4605) }, /* Liteon */ - { USB_DEVICE(0x083A, 0xA704) }, /* SMC Networks */ { USB_DEVICE(0x040D, 0x3801) }, /* VIA */ - { USB_DEVICE(0x1668, 0x1200) }, /* Verizon */ + { USB_DEVICE(0x0cf3, 0xb003) }, /* Ubiquiti WifiStation Ext */ + + { USB_DEVICE(0x0cf3, 0x7015), + .driver_info = AR9287_USB }, /* Atheros */ + { USB_DEVICE(0x1668, 0x1200), + .driver_info = AR9287_USB }, /* Verizon */ + + { USB_DEVICE(0x0cf3, 0x7010), + .driver_info = AR9280_USB }, /* Atheros */ + { USB_DEVICE(0x0846, 0x9018), + .driver_info = AR9280_USB }, /* Netgear WNDA3200 */ + { USB_DEVICE(0x083A, 0xA704), + .driver_info = AR9280_USB }, /* SMC Networks */ + { }, }; @@ -144,16 +153,36 @@ static void hif_usb_tx_cb(struct urb *urb) case -ENODEV: case -ESHUTDOWN: /* - * The URB has been killed, free the SKBs - * and return. + * The URB has been killed, free the SKBs. */ ath9k_skb_queue_purge(hif_dev, &tx_buf->skb_queue); - return; + + /* + * If the URBs are being flushed, no need to add this + * URB to the free list. + */ + spin_lock(&hif_dev->tx.tx_lock); + if (hif_dev->tx.flags & HIF_USB_TX_FLUSH) { + spin_unlock(&hif_dev->tx.tx_lock); + return; + } + spin_unlock(&hif_dev->tx.tx_lock); + + /* + * In the stop() case, this URB has to be added to + * the free list. + */ + goto add_free; default: break; } - /* Check if TX has been stopped */ + /* + * Check if TX has been stopped, this is needed because + * this CB could have been invoked just after the TX lock + * was released in hif_stop() and kill_urb() hasn't been + * called yet. + */ spin_lock(&hif_dev->tx.tx_lock); if (hif_dev->tx.flags & HIF_USB_TX_STOP) { spin_unlock(&hif_dev->tx.tx_lock); @@ -305,6 +334,7 @@ static void hif_usb_start(void *hif_handle, u8 pipe_id) static void hif_usb_stop(void *hif_handle, u8 pipe_id) { struct hif_device_usb *hif_dev = (struct hif_device_usb *)hif_handle; + struct tx_buf *tx_buf = NULL, *tx_buf_tmp = NULL; unsigned long flags; spin_lock_irqsave(&hif_dev->tx.tx_lock, flags); @@ -312,6 +342,12 @@ static void hif_usb_stop(void *hif_handle, u8 pipe_id) hif_dev->tx.tx_skb_cnt = 0; hif_dev->tx.flags |= HIF_USB_TX_STOP; spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags); + + /* The pending URBs have to be canceled. */ + list_for_each_entry_safe(tx_buf, tx_buf_tmp, + &hif_dev->tx.tx_pending, list) { + usb_kill_urb(tx_buf->urb); + } } static int hif_usb_send(void *hif_handle, u8 pipe_id, struct sk_buff *skb, @@ -353,9 +389,9 @@ static void ath9k_hif_usb_rx_stream(struct hif_device_usb *hif_dev, struct sk_buff *skb) { struct sk_buff *nskb, *skb_pool[MAX_PKT_NUM_IN_TRANSFER]; - int index = 0, i = 0, chk_idx, len = skb->len; - int rx_remain_len = 0, rx_pkt_len = 0; - u16 pkt_len, pkt_tag, pool_index = 0; + int index = 0, i = 0, len = skb->len; + int rx_remain_len, rx_pkt_len; + u16 pool_index = 0; u8 *ptr; spin_lock(&hif_dev->rx_lock); @@ -389,64 +425,64 @@ static void ath9k_hif_usb_rx_stream(struct hif_device_usb *hif_dev, spin_unlock(&hif_dev->rx_lock); while (index < len) { + u16 pkt_len; + u16 pkt_tag; + u16 pad_len; + int chk_idx; + ptr = (u8 *) skb->data; pkt_len = ptr[index] + (ptr[index+1] << 8); pkt_tag = ptr[index+2] + (ptr[index+3] << 8); - if (pkt_tag == ATH_USB_RX_STREAM_MODE_TAG) { - u16 pad_len; - - pad_len = 4 - (pkt_len & 0x3); - if (pad_len == 4) - pad_len = 0; - - chk_idx = index; - index = index + 4 + pkt_len + pad_len; - - if (index > MAX_RX_BUF_SIZE) { - spin_lock(&hif_dev->rx_lock); - hif_dev->rx_remain_len = index - MAX_RX_BUF_SIZE; - hif_dev->rx_transfer_len = - MAX_RX_BUF_SIZE - chk_idx - 4; - hif_dev->rx_pad_len = pad_len; - - nskb = __dev_alloc_skb(pkt_len + 32, - GFP_ATOMIC); - if (!nskb) { - dev_err(&hif_dev->udev->dev, - "ath9k_htc: RX memory allocation" - " error\n"); - spin_unlock(&hif_dev->rx_lock); - goto err; - } - skb_reserve(nskb, 32); - RX_STAT_INC(skb_allocated); - - memcpy(nskb->data, &(skb->data[chk_idx+4]), - hif_dev->rx_transfer_len); - - /* Record the buffer pointer */ - hif_dev->remain_skb = nskb; + if (pkt_tag != ATH_USB_RX_STREAM_MODE_TAG) { + RX_STAT_INC(skb_dropped); + return; + } + + pad_len = 4 - (pkt_len & 0x3); + if (pad_len == 4) + pad_len = 0; + + chk_idx = index; + index = index + 4 + pkt_len + pad_len; + + if (index > MAX_RX_BUF_SIZE) { + spin_lock(&hif_dev->rx_lock); + hif_dev->rx_remain_len = index - MAX_RX_BUF_SIZE; + hif_dev->rx_transfer_len = + MAX_RX_BUF_SIZE - chk_idx - 4; + hif_dev->rx_pad_len = pad_len; + + nskb = __dev_alloc_skb(pkt_len + 32, GFP_ATOMIC); + if (!nskb) { + dev_err(&hif_dev->udev->dev, + "ath9k_htc: RX memory allocation error\n"); spin_unlock(&hif_dev->rx_lock); - } else { - nskb = __dev_alloc_skb(pkt_len + 32, GFP_ATOMIC); - if (!nskb) { - dev_err(&hif_dev->udev->dev, - "ath9k_htc: RX memory allocation" - " error\n"); - goto err; - } - skb_reserve(nskb, 32); - RX_STAT_INC(skb_allocated); - - memcpy(nskb->data, &(skb->data[chk_idx+4]), pkt_len); - skb_put(nskb, pkt_len); - skb_pool[pool_index++] = nskb; + goto err; } + skb_reserve(nskb, 32); + RX_STAT_INC(skb_allocated); + + memcpy(nskb->data, &(skb->data[chk_idx+4]), + hif_dev->rx_transfer_len); + + /* Record the buffer pointer */ + hif_dev->remain_skb = nskb; + spin_unlock(&hif_dev->rx_lock); } else { - RX_STAT_INC(skb_dropped); - return; + nskb = __dev_alloc_skb(pkt_len + 32, GFP_ATOMIC); + if (!nskb) { + dev_err(&hif_dev->udev->dev, + "ath9k_htc: RX memory allocation error\n"); + goto err; + } + skb_reserve(nskb, 32); + RX_STAT_INC(skb_allocated); + + memcpy(nskb->data, &(skb->data[chk_idx+4]), pkt_len); + skb_put(nskb, pkt_len); + skb_pool[pool_index++] = nskb; } } @@ -461,7 +497,7 @@ err: static void ath9k_hif_usb_rx_cb(struct urb *urb) { struct sk_buff *skb = (struct sk_buff *) urb->context; - struct hif_device_usb *hif_dev = (struct hif_device_usb *) + struct hif_device_usb *hif_dev = usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0)); int ret; @@ -508,7 +544,7 @@ static void ath9k_hif_usb_reg_in_cb(struct urb *urb) { struct sk_buff *skb = (struct sk_buff *) urb->context; struct sk_buff *nskb; - struct hif_device_usb *hif_dev = (struct hif_device_usb *) + struct hif_device_usb *hif_dev = usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0)); int ret; @@ -578,6 +614,7 @@ free: static void ath9k_hif_usb_dealloc_tx_urbs(struct hif_device_usb *hif_dev) { struct tx_buf *tx_buf = NULL, *tx_buf_tmp = NULL; + unsigned long flags; list_for_each_entry_safe(tx_buf, tx_buf_tmp, &hif_dev->tx.tx_buf, list) { @@ -588,6 +625,10 @@ static void ath9k_hif_usb_dealloc_tx_urbs(struct hif_device_usb *hif_dev) kfree(tx_buf); } + spin_lock_irqsave(&hif_dev->tx.tx_lock, flags); + hif_dev->tx.flags |= HIF_USB_TX_FLUSH; + spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags); + list_for_each_entry_safe(tx_buf, tx_buf_tmp, &hif_dev->tx.tx_pending, list) { usb_kill_urb(tx_buf->urb); @@ -776,7 +817,8 @@ static void ath9k_hif_usb_dealloc_urbs(struct hif_device_usb *hif_dev) ath9k_hif_usb_dealloc_rx_urbs(hif_dev); } -static int ath9k_hif_usb_download_fw(struct hif_device_usb *hif_dev) +static int ath9k_hif_usb_download_fw(struct hif_device_usb *hif_dev, + u32 drv_info) { int transfer, err; const void *data = hif_dev->firmware->data; @@ -807,18 +849,10 @@ static int ath9k_hif_usb_download_fw(struct hif_device_usb *hif_dev) } kfree(buf); - switch (hif_dev->device_id) { - case 0x7010: - case 0x7015: - case 0x9018: - case 0xA704: - case 0x1200: + if (IS_AR7010_DEVICE(drv_info)) firm_offset = AR7010_FIRMWARE_TEXT; - break; - default: + else firm_offset = AR9271_FIRMWARE_TEXT; - break; - } /* * Issue FW download complete command to firmware. @@ -836,7 +870,7 @@ static int ath9k_hif_usb_download_fw(struct hif_device_usb *hif_dev) return 0; } -static int ath9k_hif_usb_dev_init(struct hif_device_usb *hif_dev) +static int ath9k_hif_usb_dev_init(struct hif_device_usb *hif_dev, u32 drv_info) { int ret, idx; struct usb_host_interface *alt = &hif_dev->interface->altsetting[0]; @@ -852,7 +886,7 @@ static int ath9k_hif_usb_dev_init(struct hif_device_usb *hif_dev) } /* Download firmware */ - ret = ath9k_hif_usb_download_fw(hif_dev); + ret = ath9k_hif_usb_download_fw(hif_dev, drv_info); if (ret) { dev_err(&hif_dev->udev->dev, "ath9k_htc: Firmware - %s download failed\n", @@ -884,9 +918,9 @@ static int ath9k_hif_usb_dev_init(struct hif_device_usb *hif_dev) return 0; -err_fw_download: - ath9k_hif_usb_dealloc_urbs(hif_dev); err_urb: + ath9k_hif_usb_dealloc_urbs(hif_dev); +err_fw_download: release_firmware(hif_dev->firmware); err_fw_req: hif_dev->firmware = NULL; @@ -931,23 +965,15 @@ static int ath9k_hif_usb_probe(struct usb_interface *interface, /* Find out which firmware to load */ - switch(hif_dev->device_id) { - case 0x7010: - case 0x7015: - case 0x9018: - case 0xA704: - case 0x1200: + if (IS_AR7010_DEVICE(id->driver_info)) if (le16_to_cpu(udev->descriptor.bcdDevice) == 0x0202) hif_dev->fw_name = FIRMWARE_AR7010_1_1; else hif_dev->fw_name = FIRMWARE_AR7010; - break; - default: + else hif_dev->fw_name = FIRMWARE_AR9271; - break; - } - ret = ath9k_hif_usb_dev_init(hif_dev); + ret = ath9k_hif_usb_dev_init(hif_dev, id->driver_info); if (ret) { ret = -EINVAL; goto err_hif_init_usb; @@ -955,7 +981,7 @@ static int ath9k_hif_usb_probe(struct usb_interface *interface, ret = ath9k_htc_hw_init(hif_dev->htc_handle, &hif_dev->udev->dev, hif_dev->device_id, - hif_dev->udev->product); + hif_dev->udev->product, id->driver_info); if (ret) { ret = -EINVAL; goto err_htc_hw_init; @@ -998,18 +1024,17 @@ static void ath9k_hif_usb_reboot(struct usb_device *udev) static void ath9k_hif_usb_disconnect(struct usb_interface *interface) { struct usb_device *udev = interface_to_usbdev(interface); - struct hif_device_usb *hif_dev = - (struct hif_device_usb *) usb_get_intfdata(interface); + struct hif_device_usb *hif_dev = usb_get_intfdata(interface); + bool unplugged = (udev->state == USB_STATE_NOTATTACHED) ? true : false; if (hif_dev) { - ath9k_htc_hw_deinit(hif_dev->htc_handle, - (udev->state == USB_STATE_NOTATTACHED) ? true : false); + ath9k_htc_hw_deinit(hif_dev->htc_handle, unplugged); ath9k_htc_hw_free(hif_dev->htc_handle); ath9k_hif_usb_dev_deinit(hif_dev); usb_set_intfdata(interface, NULL); } - if (hif_dev->flags & HIF_USB_START) + if (!unplugged && (hif_dev->flags & HIF_USB_START)) ath9k_hif_usb_reboot(udev); kfree(hif_dev); @@ -1021,8 +1046,14 @@ static void ath9k_hif_usb_disconnect(struct usb_interface *interface) static int ath9k_hif_usb_suspend(struct usb_interface *interface, pm_message_t message) { - struct hif_device_usb *hif_dev = - (struct hif_device_usb *) usb_get_intfdata(interface); + struct hif_device_usb *hif_dev = usb_get_intfdata(interface); + + /* + * The device has to be set to FULLSLEEP mode in case no + * interface is up. + */ + if (!(hif_dev->flags & HIF_USB_START)) + ath9k_htc_suspend(hif_dev->htc_handle); ath9k_hif_usb_dealloc_urbs(hif_dev); @@ -1031,8 +1062,8 @@ static int ath9k_hif_usb_suspend(struct usb_interface *interface, static int ath9k_hif_usb_resume(struct usb_interface *interface) { - struct hif_device_usb *hif_dev = - (struct hif_device_usb *) usb_get_intfdata(interface); + struct hif_device_usb *hif_dev = usb_get_intfdata(interface); + struct htc_target *htc_handle = hif_dev->htc_handle; int ret; ret = ath9k_hif_usb_alloc_urbs(hif_dev); @@ -1040,7 +1071,8 @@ static int ath9k_hif_usb_resume(struct usb_interface *interface) return ret; if (hif_dev->firmware) { - ret = ath9k_hif_usb_download_fw(hif_dev); + ret = ath9k_hif_usb_download_fw(hif_dev, + htc_handle->drv_priv->ah->hw_version.usbdev); if (ret) goto fail_resume; } else { @@ -1050,7 +1082,7 @@ static int ath9k_hif_usb_resume(struct usb_interface *interface) mdelay(100); - ret = ath9k_htc_resume(hif_dev->htc_handle); + ret = ath9k_htc_resume(htc_handle); if (ret) goto fail_resume; |