#include "htc.h"
/* identify firmware images */
-#define FIRMWARE_AR7010 "ar7010.fw"
-#define FIRMWARE_AR7010_1_1 "ar7010_1_1.fw"
-#define FIRMWARE_AR9271 "ar9271.fw"
+#define FIRMWARE_AR7010_1_1 "htc_7010.fw"
+#define FIRMWARE_AR9271 "htc_9271.fw"
-MODULE_FIRMWARE(FIRMWARE_AR7010);
MODULE_FIRMWARE(FIRMWARE_AR7010_1_1);
MODULE_FIRMWARE(FIRMWARE_AR9271);
if (cmd) {
ath9k_htc_txcompletion_cb(cmd->hif_dev->htc_handle,
- cmd->skb, 1);
+ cmd->skb, true);
kfree(cmd);
}
return ret;
}
+static void hif_usb_mgmt_cb(struct urb *urb)
+{
+ struct cmd_buf *cmd = (struct cmd_buf *)urb->context;
+ struct hif_device_usb *hif_dev = cmd->hif_dev;
+ bool txok = true;
+
+ if (!cmd || !cmd->skb || !cmd->hif_dev)
+ return;
+
+ switch (urb->status) {
+ case 0:
+ break;
+ case -ENOENT:
+ case -ECONNRESET:
+ case -ENODEV:
+ case -ESHUTDOWN:
+ txok = false;
+
+ /*
+ * If the URBs are being flushed, no need to complete
+ * this packet.
+ */
+ spin_lock(&hif_dev->tx.tx_lock);
+ if (hif_dev->tx.flags & HIF_USB_TX_FLUSH) {
+ spin_unlock(&hif_dev->tx.tx_lock);
+ dev_kfree_skb_any(cmd->skb);
+ kfree(cmd);
+ return;
+ }
+ spin_unlock(&hif_dev->tx.tx_lock);
+
+ break;
+ default:
+ txok = false;
+ break;
+ }
+
+ skb_pull(cmd->skb, 4);
+ ath9k_htc_txcompletion_cb(cmd->hif_dev->htc_handle,
+ cmd->skb, txok);
+ kfree(cmd);
+}
+
+static int hif_usb_send_mgmt(struct hif_device_usb *hif_dev,
+ struct sk_buff *skb)
+{
+ struct urb *urb;
+ struct cmd_buf *cmd;
+ int ret = 0;
+ __le16 *hdr;
+
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (urb == NULL)
+ return -ENOMEM;
+
+ cmd = kzalloc(sizeof(*cmd), GFP_ATOMIC);
+ if (cmd == NULL) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ cmd->skb = skb;
+ cmd->hif_dev = hif_dev;
+
+ hdr = (__le16 *) skb_push(skb, 4);
+ *hdr++ = cpu_to_le16(skb->len - 4);
+ *hdr++ = cpu_to_le16(ATH_USB_TX_STREAM_MODE_TAG);
+
+ usb_fill_bulk_urb(urb, hif_dev->udev,
+ usb_sndbulkpipe(hif_dev->udev, USB_WLAN_TX_PIPE),
+ skb->data, skb->len,
+ hif_usb_mgmt_cb, cmd);
+
+ usb_anchor_urb(urb, &hif_dev->mgmt_submitted);
+ ret = usb_submit_urb(urb, GFP_ATOMIC);
+ if (ret) {
+ usb_unanchor_urb(urb);
+ kfree(cmd);
+ }
+ usb_free_urb(urb);
+
+ return ret;
+}
+
static inline void ath9k_skb_queue_purge(struct hif_device_usb *hif_dev,
struct sk_buff_head *list)
{
while ((skb = __skb_dequeue(list)) != NULL) {
dev_kfree_skb_any(skb);
- TX_STAT_INC(skb_dropped);
+ }
+}
+
+static inline void ath9k_skb_queue_complete(struct hif_device_usb *hif_dev,
+ struct sk_buff_head *queue,
+ bool txok)
+{
+ struct sk_buff *skb;
+
+ while ((skb = __skb_dequeue(queue)) != NULL) {
+ ath9k_htc_txcompletion_cb(hif_dev->htc_handle,
+ skb, txok);
+ if (txok)
+ TX_STAT_INC(skb_success);
+ else
+ TX_STAT_INC(skb_failed);
}
}
{
struct tx_buf *tx_buf = (struct tx_buf *) urb->context;
struct hif_device_usb *hif_dev;
- struct sk_buff *skb;
+ bool txok = true;
if (!tx_buf || !tx_buf->hif_dev)
return;
case -ECONNRESET:
case -ENODEV:
case -ESHUTDOWN:
- /*
- * The URB has been killed, free the SKBs.
- */
- ath9k_skb_queue_purge(hif_dev, &tx_buf->skb_queue);
+ txok = false;
/*
* If the URBs are being flushed, no need to add this
spin_lock(&hif_dev->tx.tx_lock);
if (hif_dev->tx.flags & HIF_USB_TX_FLUSH) {
spin_unlock(&hif_dev->tx.tx_lock);
+ ath9k_skb_queue_purge(hif_dev, &tx_buf->skb_queue);
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;
+ break;
default:
+ txok = false;
break;
}
- /*
- * 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);
- ath9k_skb_queue_purge(hif_dev, &tx_buf->skb_queue);
- goto add_free;
- }
- spin_unlock(&hif_dev->tx.tx_lock);
-
- /* Complete the queued SKBs. */
- while ((skb = __skb_dequeue(&tx_buf->skb_queue)) != NULL) {
- ath9k_htc_txcompletion_cb(hif_dev->htc_handle,
- skb, 1);
- TX_STAT_INC(skb_completed);
- }
+ ath9k_skb_queue_complete(hif_dev, &tx_buf->skb_queue, txok);
-add_free:
/* Re-initialize the SKB queue */
tx_buf->len = tx_buf->offset = 0;
__skb_queue_head_init(&tx_buf->skb_queue);
ret = usb_submit_urb(tx_buf->urb, GFP_ATOMIC);
if (ret) {
tx_buf->len = tx_buf->offset = 0;
- ath9k_skb_queue_purge(hif_dev, &tx_buf->skb_queue);
+ ath9k_skb_queue_complete(hif_dev, &tx_buf->skb_queue, false);
__skb_queue_head_init(&tx_buf->skb_queue);
list_move_tail(&tx_buf->list, &hif_dev->tx.tx_buf);
hif_dev->tx.tx_buf_cnt++;
return ret;
}
-static int hif_usb_send_tx(struct hif_device_usb *hif_dev, struct sk_buff *skb,
- struct ath9k_htc_tx_ctl *tx_ctl)
+static int hif_usb_send_tx(struct hif_device_usb *hif_dev, struct sk_buff *skb)
{
+ struct ath9k_htc_tx_ctl *tx_ctl;
unsigned long flags;
+ int ret = 0;
spin_lock_irqsave(&hif_dev->tx.tx_lock, flags);
return -ENOMEM;
}
- __skb_queue_tail(&hif_dev->tx.tx_skb_queue, skb);
- hif_dev->tx.tx_skb_cnt++;
+ spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
- /* Send normal frames immediately */
- if (!tx_ctl || (tx_ctl && (tx_ctl->type == ATH9K_HTC_NORMAL)))
- __hif_usb_tx(hif_dev);
+ tx_ctl = HTC_SKB_CB(skb);
+
+ /* Mgmt/Beacon frames don't use the TX buffer pool */
+ if ((tx_ctl->type == ATH9K_HTC_MGMT) ||
+ (tx_ctl->type == ATH9K_HTC_BEACON)) {
+ ret = hif_usb_send_mgmt(hif_dev, skb);
+ }
+
+ spin_lock_irqsave(&hif_dev->tx.tx_lock, flags);
+
+ if ((tx_ctl->type == ATH9K_HTC_NORMAL) ||
+ (tx_ctl->type == ATH9K_HTC_AMPDU)) {
+ __skb_queue_tail(&hif_dev->tx.tx_skb_queue, skb);
+ hif_dev->tx.tx_skb_cnt++;
+ }
/* Check if AMPDUs have to be sent immediately */
- if (tx_ctl && (tx_ctl->type == ATH9K_HTC_AMPDU) &&
- (hif_dev->tx.tx_buf_cnt == MAX_TX_URB_NUM) &&
+ if ((hif_dev->tx.tx_buf_cnt == MAX_TX_URB_NUM) &&
(hif_dev->tx.tx_skb_cnt < 2)) {
__hif_usb_tx(hif_dev);
}
spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
- return 0;
+ return ret;
}
-static void hif_usb_start(void *hif_handle, u8 pipe_id)
+static void hif_usb_start(void *hif_handle)
{
struct hif_device_usb *hif_dev = (struct hif_device_usb *)hif_handle;
unsigned long flags;
spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
}
-static void hif_usb_stop(void *hif_handle, u8 pipe_id)
+static void hif_usb_stop(void *hif_handle)
{
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);
- ath9k_skb_queue_purge(hif_dev, &hif_dev->tx.tx_skb_queue);
+ ath9k_skb_queue_complete(hif_dev, &hif_dev->tx.tx_skb_queue, false);
hif_dev->tx.tx_skb_cnt = 0;
hif_dev->tx.flags |= HIF_USB_TX_STOP;
spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
&hif_dev->tx.tx_pending, list) {
usb_kill_urb(tx_buf->urb);
}
+
+ usb_kill_anchored_urbs(&hif_dev->mgmt_submitted);
}
-static int hif_usb_send(void *hif_handle, u8 pipe_id, struct sk_buff *skb,
- struct ath9k_htc_tx_ctl *tx_ctl)
+static int hif_usb_send(void *hif_handle, u8 pipe_id, struct sk_buff *skb)
{
struct hif_device_usb *hif_dev = (struct hif_device_usb *)hif_handle;
int ret = 0;
switch (pipe_id) {
case USB_WLAN_TX_PIPE:
- ret = hif_usb_send_tx(hif_dev, skb, tx_ctl);
+ ret = hif_usb_send_tx(hif_dev, skb);
break;
case USB_REG_OUT_PIPE:
ret = hif_usb_send_regout(hif_dev, skb);
return ret;
}
+static inline bool check_index(struct sk_buff *skb, u8 idx)
+{
+ struct ath9k_htc_tx_ctl *tx_ctl;
+
+ tx_ctl = HTC_SKB_CB(skb);
+
+ if ((tx_ctl->type == ATH9K_HTC_AMPDU) &&
+ (tx_ctl->sta_idx == idx))
+ return true;
+
+ return false;
+}
+
+static void hif_usb_sta_drain(void *hif_handle, u8 idx)
+{
+ struct hif_device_usb *hif_dev = (struct hif_device_usb *)hif_handle;
+ struct sk_buff *skb, *tmp;
+ unsigned long flags;
+
+ spin_lock_irqsave(&hif_dev->tx.tx_lock, flags);
+
+ skb_queue_walk_safe(&hif_dev->tx.tx_skb_queue, skb, tmp) {
+ if (check_index(skb, idx)) {
+ __skb_unlink(skb, &hif_dev->tx.tx_skb_queue);
+ ath9k_htc_txcompletion_cb(hif_dev->htc_handle,
+ skb, false);
+ hif_dev->tx.tx_skb_cnt--;
+ TX_STAT_INC(skb_failed);
+ }
+ }
+
+ spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
+}
+
static struct ath9k_htc_hif hif_usb = {
.transport = ATH9K_HIF_USB,
.name = "ath9k_hif_usb",
.start = hif_usb_start,
.stop = hif_usb_stop,
+ .sta_drain = hif_usb_sta_drain,
.send = hif_usb_send,
};
case -ESHUTDOWN:
goto free;
default:
+ skb_reset_tail_pointer(skb);
+ skb_trim(skb, 0);
+
goto resubmit;
}
USB_REG_IN_PIPE),
nskb->data, MAX_REG_IN_BUF_SIZE,
ath9k_hif_usb_reg_in_cb, nskb);
-
- ret = usb_submit_urb(urb, GFP_ATOMIC);
- if (ret) {
- kfree_skb(nskb);
- urb->context = NULL;
- }
-
- return;
}
resubmit:
- skb_reset_tail_pointer(skb);
- skb_trim(skb, 0);
-
+ usb_anchor_urb(urb, &hif_dev->reg_in_submitted);
ret = usb_submit_urb(urb, GFP_ATOMIC);
- if (ret)
+ if (ret) {
+ usb_unanchor_urb(urb);
goto free;
+ }
return;
free:
kfree(tx_buf->buf);
kfree(tx_buf);
}
+
+ usb_kill_anchored_urbs(&hif_dev->mgmt_submitted);
}
static int ath9k_hif_usb_alloc_tx_urbs(struct hif_device_usb *hif_dev)
INIT_LIST_HEAD(&hif_dev->tx.tx_pending);
spin_lock_init(&hif_dev->tx.tx_lock);
__skb_queue_head_init(&hif_dev->tx.tx_skb_queue);
+ init_usb_anchor(&hif_dev->mgmt_submitted);
for (i = 0; i < MAX_TX_URB_NUM; i++) {
tx_buf = kzalloc(sizeof(struct tx_buf), GFP_KERNEL);
return ret;
}
-static void ath9k_hif_usb_dealloc_reg_in_urb(struct hif_device_usb *hif_dev)
+static void ath9k_hif_usb_dealloc_reg_in_urbs(struct hif_device_usb *hif_dev)
{
- if (hif_dev->reg_in_urb) {
- usb_kill_urb(hif_dev->reg_in_urb);
- if (hif_dev->reg_in_urb->context)
- kfree_skb((void *)hif_dev->reg_in_urb->context);
- usb_free_urb(hif_dev->reg_in_urb);
- hif_dev->reg_in_urb = NULL;
- }
+ usb_kill_anchored_urbs(&hif_dev->reg_in_submitted);
}
-static int ath9k_hif_usb_alloc_reg_in_urb(struct hif_device_usb *hif_dev)
+static int ath9k_hif_usb_alloc_reg_in_urbs(struct hif_device_usb *hif_dev)
{
- struct sk_buff *skb;
+ struct urb *urb = NULL;
+ struct sk_buff *skb = NULL;
+ int i, ret;
- hif_dev->reg_in_urb = usb_alloc_urb(0, GFP_KERNEL);
- if (hif_dev->reg_in_urb == NULL)
- return -ENOMEM;
+ init_usb_anchor(&hif_dev->reg_in_submitted);
- skb = alloc_skb(MAX_REG_IN_BUF_SIZE, GFP_KERNEL);
- if (!skb)
- goto err;
+ for (i = 0; i < MAX_REG_IN_URB_NUM; i++) {
- usb_fill_bulk_urb(hif_dev->reg_in_urb, hif_dev->udev,
- usb_rcvbulkpipe(hif_dev->udev,
- USB_REG_IN_PIPE),
- skb->data, MAX_REG_IN_BUF_SIZE,
- ath9k_hif_usb_reg_in_cb, skb);
+ /* Allocate URB */
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (urb == NULL) {
+ ret = -ENOMEM;
+ goto err_urb;
+ }
- if (usb_submit_urb(hif_dev->reg_in_urb, GFP_KERNEL) != 0)
- goto err;
+ /* Allocate buffer */
+ skb = alloc_skb(MAX_REG_IN_BUF_SIZE, GFP_KERNEL);
+ if (!skb) {
+ ret = -ENOMEM;
+ goto err_skb;
+ }
+
+ usb_fill_bulk_urb(urb, hif_dev->udev,
+ usb_rcvbulkpipe(hif_dev->udev,
+ USB_REG_IN_PIPE),
+ skb->data, MAX_REG_IN_BUF_SIZE,
+ ath9k_hif_usb_reg_in_cb, skb);
+
+ /* Anchor URB */
+ usb_anchor_urb(urb, &hif_dev->reg_in_submitted);
+
+ /* Submit URB */
+ ret = usb_submit_urb(urb, GFP_KERNEL);
+ if (ret) {
+ usb_unanchor_urb(urb);
+ goto err_submit;
+ }
+
+ /*
+ * Drop reference count.
+ * This ensures that the URB is freed when killing them.
+ */
+ usb_free_urb(urb);
+ }
return 0;
-err:
- ath9k_hif_usb_dealloc_reg_in_urb(hif_dev);
- return -ENOMEM;
+err_submit:
+ kfree_skb(skb);
+err_skb:
+ usb_free_urb(urb);
+err_urb:
+ ath9k_hif_usb_dealloc_reg_in_urbs(hif_dev);
+ return ret;
}
static int ath9k_hif_usb_alloc_urbs(struct hif_device_usb *hif_dev)
goto err_rx;
/* Register Read */
- if (ath9k_hif_usb_alloc_reg_in_urb(hif_dev) < 0)
+ if (ath9k_hif_usb_alloc_reg_in_urbs(hif_dev) < 0)
goto err_reg;
return 0;
static void ath9k_hif_usb_dealloc_urbs(struct hif_device_usb *hif_dev)
{
usb_kill_anchored_urbs(&hif_dev->regout_submitted);
- ath9k_hif_usb_dealloc_reg_in_urb(hif_dev);
+ ath9k_hif_usb_dealloc_reg_in_urbs(hif_dev);
ath9k_hif_usb_dealloc_tx_urbs(hif_dev);
ath9k_hif_usb_dealloc_rx_urbs(hif_dev);
}
/* Find out which firmware to load */
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;
+ hif_dev->fw_name = FIRMWARE_AR7010_1_1;
else
hif_dev->fw_name = FIRMWARE_AR9271;
projects / mv-sheeva.git / blobdiff