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path: root/drivers/net/wireless/ath/ath9k/hif_usb.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/hif_usb.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/hif_usb.c229
1 files changed, 127 insertions, 102 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c
index 0de3c3d3c24..5ab3084eb9c 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 +1046,7 @@ 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
@@ -1038,8 +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);
@@ -1047,7 +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 {
@@ -1057,7 +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;