static void qca_wq_awake_device(struct work_struct *work)
{
struct qca_data *qca = container_of(work, struct qca_data,
ws_awake_device);
struct hci_uart *hu = qca->hu;
unsigned long retrans_delay;
BT_DBG("hu %p wq awake device", hu);
/* Vote for serial clock */
serial_clock_vote(HCI_IBS_TX_VOTE_CLOCK_ON, hu);
spin_lock(&qca->hci_ibs_lock);
/* Send wake indication to device */
if (send_hci_ibs_cmd(HCI_IBS_WAKE_IND, hu) < 0)
BT_ERR("Failed to send WAKE to device");
qca->ibs_sent_wakes++;
/* Start retransmit timer */
retrans_delay = msecs_to_jiffies(qca->wake_retrans);
mod_timer(&qca->wake_retrans_timer, jiffies + retrans_delay);
spin_unlock(&qca->hci_ibs_lock);
/* Actually send the packets */
hci_uart_tx_wakeup(hu);
}
static void ibs_wq_awake_rx(struct work_struct *work)
{
struct ibs_struct *ibs = container_of(work, struct ibs_struct,
ws_awake_rx);
struct hci_uart *hu = (struct hci_uart *)ibs->ibs_hu;
unsigned long flags;
BT_DBG(" %p ", hu);
ibs_msm_serial_clock_vote(HCI_IBS_RX_VOTE_CLOCK_ON, hu);
spin_lock_irqsave(&ibs->hci_ibs_lock, flags);
ibs->rx_ibs_state = HCI_IBS_RX_AWAKE;
/* Always acknowledge device wake up,
* sending IBS message doesn't count as TX ON
*/
if (send_hci_ibs_cmd(HCI_IBS_WAKE_ACK, hu) < 0)
BT_ERR("cannot acknowledge device wake up");
ibs->ibs_sent_wacks++; /* debug */
spin_unlock_irqrestore(&ibs->hci_ibs_lock, flags);
/* actually send the packets */
hci_uart_tx_wakeup(hu);
}
static int qca_set_baudrate(struct hci_dev *hdev, uint8_t baudrate)
{
struct hci_uart *hu = hci_get_drvdata(hdev);
struct qca_data *qca = hu->priv;
struct sk_buff *skb;
u8 cmd[] = { 0x01, 0x48, 0xFC, 0x01, 0x00 };
if (baudrate > QCA_BAUDRATE_3000000)
return -EINVAL;
cmd[4] = baudrate;
skb = bt_skb_alloc(sizeof(cmd), GFP_ATOMIC);
if (!skb) {
BT_ERR("Failed to allocate memory for baudrate packet");
return -ENOMEM;
}
/* Assign commands to change baudrate and packet type. */
memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
bt_cb(skb)->pkt_type = HCI_COMMAND_PKT;
skb_queue_tail(&qca->txq, skb);
hci_uart_tx_wakeup(hu);
/* wait 300ms to change new baudrate on controller side
* controller will come back after they receive this HCI command
* then host can communicate with new baudrate to controller
*/
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(msecs_to_jiffies(BAUDRATE_SETTLE_TIMEOUT_MS));
set_current_state(TASK_INTERRUPTIBLE);
return 0;
}
static void hci_ibs_wake_retrans_timeout(unsigned long arg)
{
struct hci_uart *hu = (struct hci_uart *) arg;
struct ibs_struct *ibs = hu->priv;
unsigned long flags;
unsigned long retransmit = 0;
BT_DBG("hu %p wake retransmit timeout in %lu state",
hu, ibs->tx_ibs_state);
spin_lock_irqsave_nested(&ibs->hci_ibs_lock,
flags, SINGLE_DEPTH_NESTING);
switch (ibs->tx_ibs_state) {
default:
case HCI_IBS_TX_ASLEEP:
case HCI_IBS_TX_AWAKE:
BT_ERR("spurrious timeout tx state %ld", ibs->tx_ibs_state);
goto out;
case HCI_IBS_TX_WAKING: /* No WAKE_ACK, retransmit WAKE */
retransmit = 1;
if (send_hci_ibs_cmd(HCI_IBS_WAKE_IND, hu) < 0) {
BT_ERR("cannot acknowledge device wake up");
goto out;
}
ibs->ibs_sent_wakes++; /* debug */
mod_timer(&ibs->wake_retrans_timer, jiffies + wake_retrans);
break;
}
out:
spin_unlock_irqrestore(&ibs->hci_ibs_lock, flags);
if (retransmit)
hci_uart_tx_wakeup(hu);
}
static void ll_device_want_to_sleep(struct hci_uart *hu)
{
unsigned long flags;
struct ll_struct *ll = hu->priv;
BT_DBG("hu %p", hu);
spin_lock_irqsave(&ll->hcill_lock, flags);
if (ll->hcill_state != HCILL_AWAKE)
BT_ERR("ERR: HCILL_GO_TO_SLEEP_IND in state %ld", ll->hcill_state);
if (send_hcill_cmd(HCILL_GO_TO_SLEEP_ACK, hu) < 0) {
BT_ERR("cannot acknowledge device sleep");
goto out;
}
ll->hcill_state = HCILL_ASLEEP;
out:
spin_unlock_irqrestore(&ll->hcill_lock, flags);
hci_uart_tx_wakeup(hu);
spin_lock_irqsave(&ll->hcill_lock, flags);
if (ll->hcill_state == HCILL_ASLEEP)
__ll_msm_serial_clock_request_off(hu->tty);
spin_unlock_irqrestore(&ll->hcill_lock, flags);
}
/*
* Called upon a sleep-indication from the device
*/
static void ll_device_want_to_sleep(struct hci_uart *hu)
{
unsigned long flags;
struct ll_struct *ll = hu->priv;
BT_DBG("hu %p", hu);
/* lock hcill state */
spin_lock_irqsave(&ll->hcill_lock, flags);
/* sanity check */
if (ll->hcill_state != HCILL_AWAKE)
BT_ERR("ERR: HCILL_GO_TO_SLEEP_IND in state %ld", ll->hcill_state);
/* acknowledge device sleep */
if (send_hcill_cmd(HCILL_GO_TO_SLEEP_ACK, hu) < 0) {
BT_ERR("cannot acknowledge device sleep");
goto out;
}
/* update state */
ll->hcill_state = HCILL_ASLEEP;
out:
spin_unlock_irqrestore(&ll->hcill_lock, flags);
/* actually send the sleep ack packet */
hci_uart_tx_wakeup(hu);
}
/*
* Cabrcmed upon a sleep-indication from the device
*/
static void brcm_device_want_to_sleep(struct hci_uart *hu)
{
unsigned long flags;
struct brcm_struct *brcm = hu->priv;
BT_DBG("hu %p", hu);
/* lock hcibrcm state */
spin_lock_irqsave(&brcm->hcibrcm_lock, flags);
/* sanity check */
if (brcm->hcibrcm_state != HCIBRCM_AWAKE)
BT_ERR("ERR: HCIBRCM_GO_TO_SLEEP_IND in state %ld", brcm->hcibrcm_state);
/* acknowledge device sleep */
if (send_hcibrcm_cmd(HCIBRCM_GO_TO_SLEEP_ACK, hu) < 0) {
BT_ERR("cannot acknowledge device sleep");
goto out;
}
/* update state */
brcm->hcibrcm_state = HCIBRCM_ASLEEP;
out:
spin_unlock_irqrestore(&brcm->hcibrcm_lock, flags);
/* actuabrcmy send the sleep ack packet */
hci_uart_tx_wakeup(hu);
spin_lock_irqsave(&brcm->hcibrcm_lock, flags);
if (brcm->hcibrcm_state == HCIBRCM_ASLEEP)
__brcm_msm_serial_clock_request_off(hu->tty);
spin_unlock_irqrestore(&brcm->hcibrcm_lock, flags);
}
/* Send frames from HCI layer */
static int hci_uart_send_frame(struct sk_buff *skb)
{
struct hci_dev* hdev = (struct hci_dev *) skb->dev;
struct tty_struct *tty;
struct hci_uart *hu;
if (!hdev) {
BT_ERR("Frame for uknown device (hdev=NULL)");
return -ENODEV;
}
if (!test_bit(HCI_RUNNING, &hdev->flags))
return -EBUSY;
hu = (struct hci_uart *) hdev->driver_data;
tty = hu->tty;
BT_DBG("%s: type %d len %d", hdev->name, bt_cb(skb)->pkt_type, skb->len);
hu->proto->enqueue(hu, skb);
hci_uart_tx_wakeup(hu);
return 0;
}
int hci_uart_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
#endif
{
#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0)
struct hci_dev *hdev = (struct hci_dev *)skb->dev;
#endif
struct hci_uart *hu;
if (!hdev) {
BT_ERR("Frame for unknown device (hdev=NULL)");
return -ENODEV;
}
if (!test_bit(HCI_RUNNING, &hdev->flags))
return -EBUSY;
hu = GET_DRV_DATA(hdev); //(struct hci_uart *) hdev->driver_data;
BT_DBG("%s: type %d len %d", hdev->name, bt_cb(skb)->pkt_type,
skb->len);
#ifdef BTCOEX
if (bt_cb(skb)->pkt_type == HCI_COMMAND_PKT)
rtk_btcoex_parse_cmd(skb->data, skb->len);
if (bt_cb(skb)->pkt_type == HCI_ACLDATA_PKT)
rtk_btcoex_parse_l2cap_data_tx(skb->data, skb->len);
#endif
hu->proto->enqueue(hu, skb);
hci_uart_tx_wakeup(hu);
return 0;
}
/* Send frames from HCI layer */
static int hci_uart_send_frame(struct sk_buff *skb)
{
struct hci_dev* hdev = (struct hci_dev *) skb->dev;
cyg_io_handle_t serial;
struct hci_uart *hu;
if (!hdev) {
//BT_ERR
printf("Frame for uknown device (hdev=NULL)\n");
return -ENODEV;
}
if (!test_bit(HCI_RUNNING, &hdev->flags))
return -EBUSY;
hu = (struct hci_uart *) hdev->driver_data;
serial = hu->tty;
//BT_DBG
printf("%s: type %d len %d\n", hdev->name, skb->pkt_type, skb->len);
hu->proto->enqueue(hu, skb);
hci_uart_tx_wakeup(hu);
return 0;
}
static void qca_wq_awake_rx(struct work_struct *work)
{
struct qca_data *qca = container_of(work, struct qca_data,
ws_awake_rx);
struct hci_uart *hu = qca->hu;
BT_DBG("hu %p wq awake rx", hu);
serial_clock_vote(HCI_IBS_RX_VOTE_CLOCK_ON, hu);
spin_lock(&qca->hci_ibs_lock);
qca->rx_ibs_state = HCI_IBS_RX_AWAKE;
/* Always acknowledge device wake up,
* sending IBS message doesn't count as TX ON.
*/
if (send_hci_ibs_cmd(HCI_IBS_WAKE_ACK, hu) < 0)
BT_ERR("Failed to acknowledge device wake up");
qca->ibs_sent_wacks++;
spin_unlock(&qca->hci_ibs_lock);
/* Actually send the packets */
hci_uart_tx_wakeup(hu);
}
/* Send frames from HCI layer */
static int hci_uart_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_uart *hu = hci_get_drvdata(hdev);
BT_DBG("%s: type %d len %d", hdev->name, hci_skb_pkt_type(skb),
skb->len);
hu->proto->enqueue(hu, skb);
hci_uart_tx_wakeup(hu);
return 0;
}
/*
* Cabrcmed upon a wake-up-indication from the device
*/
static void brcm_device_want_to_wakeup(struct hci_uart *hu)
{
unsigned long flags;
struct brcm_struct *brcm = hu->priv;
BT_DBG("hu %p", hu);
/* lock hcibrcm state */
spin_lock_irqsave(&brcm->hcibrcm_lock, flags);
switch (brcm->hcibrcm_state) {
case HCIBRCM_ASLEEP_TO_AWAKE:
/*
* This state means that both the host and the BRF chip
* have simultaneously sent a wake-up-indication packet.
* Traditionaly, in this case, receiving a wake-up-indication
* was enough and an additional wake-up-ack wasn't needed.
* This has changed with the BRF6350, which does require an
* explicit wake-up-ack. Other BRF versions, which do not
* require an explicit ack here, do accept it, thus it is
* perfectly safe to always send one.
*/
BT_DBG("dual wake-up-indication");
/* deliberate fabrcm-through - do not add break */
case HCIBRCM_ASLEEP:
/* Make sure clock is on - we may have turned clock off since
* receiving the wake up indicator
*/
__brcm_bcm_serial_clock_on(hu);
/* acknowledge device wake up */
if (send_hcibrcm_cmd(HCIBRCM_WAKE_UP_ACK, hu) < 0) {
BT_ERR("cannot acknowledge device wake up");
goto out;
}
break;
default:
/* any other state is ibrcmegal */
BT_ERR("received HCIBRCM_WAKE_UP_IND in state %ld",
brcm->hcibrcm_state);
break;
}
/* send pending packets and change state to HCIBRCM_AWAKE */
__brcm_do_awake(brcm);
out:
spin_unlock_irqrestore(&brcm->hcibrcm_lock, flags);
/* actuabrcmy send the packets */
hci_uart_tx_wakeup(hu);
}
/** hci_uart_write_wakeup - transmit buffer wakeup
* @serdev: serial device
*
* This function is called by the serdev framework when it accepts
* more data being sent.
*/
static void hci_uart_write_wakeup(struct serdev_device *serdev)
{
struct hci_uart *hu = serdev_device_get_drvdata(serdev);
BT_DBG("");
if (!hu || serdev != hu->serdev) {
WARN_ON(1);
return;
}
if (test_bit(HCI_UART_PROTO_READY, &hu->flags))
hci_uart_tx_wakeup(hu);
}
/* QualComm baseLine update 1030 to 1040 begin */
static void ibs_wq(struct work_struct *work)
{
unsigned long flags = 0;
struct ibs_struct *ibs = container_of(work, struct ibs_struct,
ws_ibs);
struct hci_uart *hu = (struct hci_uart *)ibs->ibs_hu;
BT_DBG("hu %p, ibs_wq state: %lu\n", hu, ibs->ibs_wq_state);
/* lock hci_ibs state */
spin_lock_irqsave(&ibs->hci_ibs_lock, flags);
switch (ibs->ibs_wq_state) {
case HCI_IBS_WQ_AWAKE_DEVICE:
/* Vote for serial clock */
ibs_msm_serial_clock_vote(HCI_IBS_TX_VOTE_CLOCK_ON, hu);
/* send wake indication to device */
if (send_hci_ibs_cmd(HCI_IBS_WAKE_IND, hu) < 0)
BT_ERR("cannot send WAKE to device");
ibs->ibs_sent_wakes++; /* debug */
/* start retransmit timer */
mod_timer(&ibs->wake_retrans_timer, jiffies + wake_retrans);
break;
case HCI_IBS_WQ_AWAKE_RX:
ibs_msm_serial_clock_vote(HCI_IBS_RX_VOTE_CLOCK_ON, hu);
ibs->rx_ibs_state = HCI_IBS_RX_AWAKE;
if (send_hci_ibs_cmd(HCI_IBS_WAKE_ACK, hu) < 0)
BT_ERR("cannot acknowledge device wake up");
ibs->ibs_sent_wacks++; /* debug */
/* actually send the packets */
hci_uart_tx_wakeup(hu);
break;
case HCI_IBS_WQ_RX_VOTE_OFF:
ibs_msm_serial_clock_vote(HCI_IBS_RX_VOTE_CLOCK_OFF, hu);
break;
case HCI_IBS_WQ_TX_VOTE_OFF:
ibs_msm_serial_clock_vote(HCI_IBS_TX_VOTE_CLOCK_OFF, hu);
break;
default:
BT_DBG("Invalid state in ibs workqueue");
break;
}
spin_unlock_irqrestore(&ibs->hci_ibs_lock, flags);
}
/*
* Called upon wake-up-acknowledgement from the device
*/
static void ibs_device_woke_up(struct hci_uart *hu)
{
unsigned long flags;
struct ibs_struct *ibs = hu->priv;
struct sk_buff *skb = NULL;
BT_DBG("hu %p", hu);
/* lock hci_ibs state */
spin_lock_irqsave(&ibs->hci_ibs_lock, flags);
/* debug */
ibs->ibs_recv_wacks++;
//Add check for rx_ibs_state when receive HCI_IBS_WAKE_ACK just after HCI_IBS_SLEEP_IND.
if(ibs->rx_ibs_state == HCI_IBS_RX_ASLEEP) {
ibs_msm_serial_clock_vote(HCI_IBS_RX_VOTE_CLOCK_ON, hu);
ibs->rx_ibs_state = HCI_IBS_RX_AWAKE;
}
switch (ibs->tx_ibs_state) {
case HCI_IBS_TX_ASLEEP:
/* This could be spurrious rx wake on the BT chip.
* Send it another SLEEP othwise it will stay awake. */
default:
BT_ERR("received HCI_IBS_WAKE_ACK in tx state %ld",
ibs->tx_ibs_state);
break;
case HCI_IBS_TX_AWAKE:
/* expect one if we send 2 WAKEs */
BT_DBG("received HCI_IBS_WAKE_ACK in tx state %ld",
ibs->tx_ibs_state);
break;
case HCI_IBS_TX_WAKING:
/* send pending packets */
while ((skb = skb_dequeue(&ibs->tx_wait_q)))
skb_queue_tail(&ibs->txq, skb);
/* switch timers and change state to HCI_IBS_TX_AWAKE */
del_timer(&ibs->wake_retrans_timer);
mod_timer(&ibs->tx_idle_timer, jiffies + tx_idle_delay);
ibs->tx_ibs_state = HCI_IBS_TX_AWAKE;
}
spin_unlock_irqrestore(&ibs->hci_ibs_lock, flags);
/* actually send the packets */
hci_uart_tx_wakeup(hu);
}
/* Send frames from HCI layer */
static int hci_uart_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_uart *hu = hci_get_drvdata(hdev);
if (!test_bit(HCI_RUNNING, &hdev->flags))
return -EBUSY;
BT_DBG("%s: type %d len %d", hdev->name, bt_cb(skb)->pkt_type, skb->len);
hu->proto->enqueue(hu, skb);
hci_uart_tx_wakeup(hu);
return 0;
}
static void ibs_wq_serial_tx_clock_vote_off(struct work_struct *work)
{
struct ibs_struct *ibs = container_of(work, struct ibs_struct,
ws_tx_vote_off);
struct hci_uart *hu = (struct hci_uart *)ibs->ibs_hu;
BT_DBG(" %p ", hu);
hci_uart_tx_wakeup(hu); /* run HCI tx handling unlocked */
/* now that message queued to tty driver, vote for tty clocks off */
/* It is up to the tty driver to pend the clocks off until tx done. */
ibs_msm_serial_clock_vote(HCI_IBS_TX_VOTE_CLOCK_OFF, hu);
}
/*
* Called upon a wake-up-indication from the device
*/
static void ibs_device_want_to_wakeup(struct hci_uart *hu)
{
unsigned long flags;
struct ibs_struct *ibs = hu->priv;
BT_DBG("hu %p", hu);
/* lock hci_ibs state */
spin_lock_irqsave(&ibs->hci_ibs_lock, flags);
/* debug */
ibs->ibs_recv_wakes++;
switch (ibs->rx_ibs_state) {
case HCI_IBS_RX_ASLEEP:
/* Make sure clock is on - we may have turned clock off since
* receiving the wake up indicator
*/
/* QualComm baseLine update 1030 to 1040 begin */
/* awake rx clock */
ibs->ibs_wq_state = HCI_IBS_WQ_AWAKE_RX;
queue_work(ibs->workqueue, &ibs->ws_ibs);
spin_unlock_irqrestore(&ibs->hci_ibs_lock, flags);
return;
/* QualComm baseLine update 1030 to 1040 end */
case HCI_IBS_RX_AWAKE:
/* Always acknowledge device wake up,
* sending IBS message doesn't count as TX ON.
*/
if (send_hci_ibs_cmd(HCI_IBS_WAKE_ACK, hu) < 0) {
BT_ERR("cannot acknowledge device wake up");
goto out;
}
ibs->ibs_sent_wacks++; /* debug */
break;
default:
/* any other state is illegal */
BT_ERR("received HCI_IBS_WAKE_IND in rx state %ld",
ibs->rx_ibs_state);
break;
}
out:
spin_unlock_irqrestore(&ibs->hci_ibs_lock, flags);
/* actually send the packets */
hci_uart_tx_wakeup(hu);
}
static void hci_ibs_tx_idle_timeout(unsigned long arg)
{
struct hci_uart *hu = (struct hci_uart *) arg;
struct ibs_struct *ibs = hu->priv;
unsigned long flags;
unsigned long vote_tx_sleep = 0;
BT_DBG("hu %p idle timeout in %lu state", hu, ibs->tx_ibs_state);
spin_lock_irqsave_nested(&ibs->hci_ibs_lock,
flags, SINGLE_DEPTH_NESTING);
switch (ibs->tx_ibs_state) {
default:
case HCI_IBS_TX_ASLEEP:
case HCI_IBS_TX_WAKING:
BT_ERR("spurrious timeout in tx state %ld", ibs->tx_ibs_state);
goto out;
case HCI_IBS_TX_AWAKE: /* TX_IDLE, go to SLEEP */
if (send_hci_ibs_cmd(HCI_IBS_SLEEP_IND, hu) < 0) {
BT_ERR("cannot send SLEEP to device");
goto out;
}
ibs->tx_ibs_state = HCI_IBS_TX_ASLEEP;
ibs->ibs_sent_slps++; /* debug */
vote_tx_sleep = 1;
break;
}
spin_unlock_irqrestore(&ibs->hci_ibs_lock, flags);
hci_uart_tx_wakeup(hu); /* run HCI tx handling unlocked */
if (!vote_tx_sleep)
return;
/* now that message queued to tty driver, vote for tty clocks off */
/* It is up to the tty driver to pend the clocks off until tx done. */
spin_lock_irqsave_nested(&ibs->hci_ibs_lock,
flags, SINGLE_DEPTH_NESTING);
/* QualComm baseLine update 1030 to 1040 begin */
/* vote off tx clock */
ibs->ibs_wq_state = HCI_IBS_WQ_TX_VOTE_OFF;
queue_work(ibs->workqueue, &ibs->ws_ibs);
/* QualComm baseLine update 1030 to 1040 end */
out:
spin_unlock_irqrestore(&ibs->hci_ibs_lock, flags);
}
static void qca_wq_serial_tx_clock_vote_off(struct work_struct *work)
{
struct qca_data *qca = container_of(work, struct qca_data,
ws_tx_vote_off);
struct hci_uart *hu = qca->hu;
BT_DBG("hu %p tx clock vote off", hu);
/* Run HCI tx handling unlocked */
hci_uart_tx_wakeup(hu);
/* Now that message queued to tty driver, vote for tty clocks off.
* It is up to the tty driver to pend the clocks off until tx done.
*/
serial_clock_vote(HCI_IBS_TX_VOTE_CLOCK_OFF, hu);
}
/* Send frames from HCI layer */
static int hci_uart_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_uart *hu = hci_get_drvdata(hdev);
BT_DBG("%s: type %d len %d", hdev->name, hci_skb_pkt_type(skb),
skb->len);
if (!test_bit(HCI_UART_PROTO_READY, &hu->flags))
return -EUNATCH;
hu->proto->enqueue(hu, skb);
hci_uart_tx_wakeup(hu);
return 0;
}
/* Send frames from HCI layer */
static int hci_uart_send_frame(struct sk_buff *skb)
{
struct hci_dev* hdev = (struct hci_dev *) skb->dev;
struct hci_uart *hu;
#ifdef CONFIG_TROUT_UART_TRANSPORT_DEBUG
struct h4_struct *h4;
int is_queue_empty = 0;
#endif
if (!hdev) {
BT_ERR("Frame for unknown device (hdev=NULL)");
return -ENODEV;
}
if (!test_bit(HCI_RUNNING, &hdev->flags))
return -EBUSY;
hu = (struct hci_uart *) hdev->driver_data;
#ifdef CONFIG_TROUT_UART_TRANSPORT_DEBUG
h4 = hu->priv;
#endif
BT_DBG("%s: type %d len %d", hdev->name, bt_cb(skb)->pkt_type, skb->len);
#ifdef CONFIG_TROUT_UART_TRANSPORT_DEBUG
BT_UART_DBG("sk_data1:type 0x%x len =%d data:0x%x 0x%x 0x%x",bt_cb(skb)->pkt_type, skb->len,skb->data[0], skb->data[1], skb->data[2]);
hu->proto->enqueue(hu, skb);
if(!hci_is_ctl_act())
{
is_queue_empty = is_skb_queue_empty(&h4->txq);
hci_uart_tx_wakeup_sprd(hu, is_queue_empty, false, false);
}
else
{
if(NULL != &timer_retransmit)
{
del_timer(&timer_retransmit);
}
hci_uart_tx_wakeup_sprd(hu, 0, true, false);
}
#else
hu->proto->enqueue(hu, skb);
#endif
#ifndef CONFIG_TROUT_UART_TRANSPORT_DEBUG
hci_uart_tx_wakeup(hu);
#endif
return 0;
}
/*
* Called upon a wake-up-indication from the device
*/
static void ibs_device_want_to_wakeup(struct hci_uart *hu)
{
unsigned long flags;
struct ibs_struct *ibs = hu->priv;
BT_DBG("hu %p", hu);
/* lock hci_ibs state */
spin_lock_irqsave(&ibs->hci_ibs_lock, flags);
/* debug */
ibs->ibs_recv_wakes++;
switch (ibs->rx_ibs_state) {
case HCI_IBS_RX_ASLEEP:
/* Make sure clock is on - we may have turned clock off since
* receiving the wake up indicator
*/
ibs_msm_serial_clock_vote(HCI_IBS_RX_VOTE_CLOCK_ON, hu);
ibs->rx_ibs_state = HCI_IBS_RX_AWAKE;
/* deliberate fall-through */
case HCI_IBS_RX_AWAKE:
/* Always acknowledge device wake up,
* sending IBS message doesn't count as TX ON.
*/
if (send_hci_ibs_cmd(HCI_IBS_WAKE_ACK, hu) < 0) {
BT_ERR("cannot acknowledge device wake up");
goto out;
}
ibs->ibs_sent_wacks++; /* debug */
break;
default:
/* any other state is illegal */
BT_ERR("received HCI_IBS_WAKE_IND in rx state %ld",
ibs->rx_ibs_state);
break;
}
out:
spin_unlock_irqrestore(&ibs->hci_ibs_lock, flags);
/* actually send the packets */
hci_uart_tx_wakeup(hu);
}
/* hci_uart_tty_wakeup()
*
* Callback for transmit wakeup. Called when low level
* device driver can accept more send data.
*
* Arguments: tty pointer to associated tty instance data
* Return Value: None
*/
static void hci_uart_tty_wakeup(struct tty_struct *tty)
{
struct hci_uart *hu = (void *)tty->disc_data;
BT_DBG("");
if (!hu)
return;
clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
if (tty != hu->tty)
return;
if (test_bit(HCI_UART_PROTO_SET, &hu->flags))
hci_uart_tx_wakeup(hu);
}
/* hci_uart_tty_wakeup()
*
* Callback for transmit wakeup. Called when low level
* device driver can accept more send data.
*
* Arguments: tty pointer to associated tty instance data
* Return Value: None
*/
static void hci_uart_tty_wakeup(cyg_io_handle_t tty)
{
struct hci_uart *hu = (struct hci_uart *)serial_getdisc(tty);//(void *)tty->disc_data;
// BT_DBG("");
if (!hu)
return;
// clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
if (tty != hu->tty)
return;
if (test_bit(HCI_UART_PROTO_SET, &hu->flags))
hci_uart_tx_wakeup(hu);
}
static void ath_hci_uart_work(struct work_struct *work)
{
int status;
struct ath_struct *ath;
struct hci_uart *hu;
ath = container_of(work, struct ath_struct, ctxtsw);
hu = ath->hu;
/* verify and wake up controller */
if (test_bit(BT_SLEEPENABLE, &flags))
status = ath_wakeup_ar3k();
/* Ready to send Data */
clear_bit(HCI_UART_SENDING, &hu->tx_state);
hci_uart_tx_wakeup(hu);
}
/* Called upon wake-up-acknowledgement from the device
*/
static void device_woke_up(struct hci_uart *hu)
{
unsigned long flags, idle_delay;
struct qca_data *qca = hu->priv;
struct sk_buff *skb = NULL;
BT_DBG("hu %p woke up", hu);
spin_lock_irqsave(&qca->hci_ibs_lock, flags);
qca->ibs_recv_wacks++;
switch (qca->tx_ibs_state) {
case HCI_IBS_TX_AWAKE:
/* Expect one if we send 2 WAKEs */
BT_DBG("Received HCI_IBS_WAKE_ACK in tx state %d",
qca->tx_ibs_state);
break;
case HCI_IBS_TX_WAKING:
/* Send pending packets */
while ((skb = skb_dequeue(&qca->tx_wait_q)))
skb_queue_tail(&qca->txq, skb);
/* Switch timers and change state to HCI_IBS_TX_AWAKE */
del_timer(&qca->wake_retrans_timer);
idle_delay = msecs_to_jiffies(qca->tx_idle_delay);
mod_timer(&qca->tx_idle_timer, jiffies + idle_delay);
qca->tx_ibs_state = HCI_IBS_TX_AWAKE;
break;
case HCI_IBS_TX_ASLEEP:
/* Fall through */
default:
BT_ERR("Received HCI_IBS_WAKE_ACK in tx state %d",
qca->tx_ibs_state);
break;
}
spin_unlock_irqrestore(&qca->hci_ibs_lock, flags);
/* Actually send the packets */
hci_uart_tx_wakeup(hu);
}
static int qca_set_baudrate(struct hci_dev *hdev, uint8_t baudrate)
{
struct hci_uart *hu = hci_get_drvdata(hdev);
struct qca_data *qca = hu->priv;
struct qca_serdev *qcadev;
struct sk_buff *skb;
u8 cmd[] = { 0x01, 0x48, 0xFC, 0x01, 0x00 };
if (baudrate > QCA_BAUDRATE_3200000)
return -EINVAL;
cmd[4] = baudrate;
skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
if (!skb) {
bt_dev_err(hdev, "Failed to allocate baudrate packet");
return -ENOMEM;
}
/* Assign commands to change baudrate and packet type. */
skb_put_data(skb, cmd, sizeof(cmd));
hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
skb_queue_tail(&qca->txq, skb);
hci_uart_tx_wakeup(hu);
qcadev = serdev_device_get_drvdata(hu->serdev);
/* Wait for the baudrate change request to be sent */
while (!skb_queue_empty(&qca->txq))
usleep_range(100, 200);
serdev_device_wait_until_sent(hu->serdev,
msecs_to_jiffies(CMD_TRANS_TIMEOUT_MS));
/* Give the controller time to process the request */
if (qcadev->btsoc_type == QCA_WCN3990)
msleep(10);
else
msleep(300);
return 0;
}
/* Called upon a wake-up-indication from the device.
*/
static void device_want_to_wakeup(struct hci_uart *hu)
{
unsigned long flags;
struct qca_data *qca = hu->priv;
BT_DBG("hu %p want to wake up", hu);
spin_lock_irqsave(&qca->hci_ibs_lock, flags);
qca->ibs_recv_wakes++;
switch (qca->rx_ibs_state) {
case HCI_IBS_RX_ASLEEP:
/* Make sure clock is on - we may have turned clock off since
* receiving the wake up indicator awake rx clock.
*/
queue_work(qca->workqueue, &qca->ws_awake_rx);
spin_unlock_irqrestore(&qca->hci_ibs_lock, flags);
return;
case HCI_IBS_RX_AWAKE:
/* Always acknowledge device wake up,
* sending IBS message doesn't count as TX ON.
*/
if (send_hci_ibs_cmd(HCI_IBS_WAKE_ACK, hu) < 0) {
BT_ERR("Failed to acknowledge device wake up");
break;
}
qca->ibs_sent_wacks++;
break;
default:
/* Any other state is illegal */
BT_ERR("Received HCI_IBS_WAKE_IND in rx state %d",
qca->rx_ibs_state);
break;
}
spin_unlock_irqrestore(&qca->hci_ibs_lock, flags);
/* Actually send the packets */
hci_uart_tx_wakeup(hu);
}
