/* Recv data */
static int ath_recv(struct hci_uart *hu, void *data, int count)
{
struct ath_struct *ath = hu->priv;
unsigned int type;
BT_DBG("");
if (hci_recv_stream_fragment(hu->hdev, data, count) < 0)
BT_ERR("Frame Reassembly Failed");
if (count & test_bit(BT_SLEEPCMD, &flags)) {
struct sk_buff *skb = hu->hdev->reassembly[0];
if (!skb) {
struct { char type; } *pkt;
/* Start of the frame */
pkt = data;
type = pkt->type;
} else
type = bt_cb(skb)->pkt_type;
if (type == HCI_EVENT_PKT) {
clear_bit(BT_SLEEPCMD, &flags);
BT_INFO("cur_sleep:%d\n", ath->cur_sleep);
if (ath->cur_sleep == 1)
set_bit(BT_SLEEPENABLE, &flags);
else
clear_bit(BT_SLEEPENABLE, &flags);
}
if (test_bit(BT_SLEEPENABLE, &flags))
modify_timer_task();
}
return count;
}
/* Recv data */
static int ath_recv(struct hci_uart *hu, void *data, int count)
{
if (hci_recv_stream_fragment(hu->hdev, data, count) < 0)
BT_ERR("Frame Reassembly Failed");
return count;
}
/* Recv data */
static int h4_recv(struct hci_uart *hu, void *data, int count)
{
int ret;
ret = hci_recv_stream_fragment(hu->hdev, data, count);
if (ret < 0) {
BT_ERR("Frame Reassembly Failed");
return ret;
}
return count;
}
/* Recv data */
static int h4_recv(struct hci_uart *hu, void *data, int count)
{
int ret;
if (!test_bit(HCI_UART_REGISTERED, &hu->flags))
return -EUNATCH;
ret = hci_recv_stream_fragment(hu->hdev, data, count);
if (ret < 0) {
BT_ERR("Frame Reassembly Failed");
return ret;
}
return count;
}
/* Recv data */
static int h4_recv(struct hci_uart *hu, void *data, int count)
{
if(mt6622_hack == 0)
{
int ret;
ret = hci_recv_stream_fragment(hu->hdev, data, count);
if (ret < 0) {
BT_ERR("Frame Reassembly Failed");
return ret;
}
return count;
}
else
{
struct h4_struct *h4 = hu->priv;
register char *ptr;
struct hci_event_hdr *eh;
struct hci_acl_hdr *ah;
struct hci_sco_hdr *sh;
register int len, type, dlen;
int iDiscard = 0;
int while_count = 0;
BT_DBG("hu %p count %d rx_state %ld rx_count %ld",
hu, count, h4->rx_state, h4->rx_count);
ptr = data;
while (count) {
while_count ++;
if(while_count > 5000){
BT_ERR("h4_recv while_count %d\n", while_count);
}
if (h4->rx_count) {
len = min_t(unsigned int, h4->rx_count, count);
memcpy(skb_put(h4->rx_skb, len), ptr, len);
h4->rx_count -= len; count -= len; ptr += len;
if (h4->rx_count)
continue;
switch (h4->rx_state) {
case H4_W4_DATA:
iDiscard = 0; /* default not to drop packet */
if(HCI_EVENT_PKT == bt_cb(h4->rx_skb)->pkt_type){
unsigned short usOpCode = 0;
eh = hci_event_hdr(h4->rx_skb);
switch(eh->evt){
case HCI_EV_CMD_COMPLETE:
usOpCode = (((unsigned short)(h4->rx_skb->data[4])) << 8) |
((unsigned short)(h4->rx_skb->data[3]));
if(usOpCode == 0xFCC0){
iDiscard = 1;
clear_bit(1, &h4->ulMagic); /* allow TX to run */
BT_DBG("recv event 0x%04x\n", (int)usOpCode);
/* flag is cleared. we may resume TX. or later? */
hci_uart_tx_wakeup(hu);
}
if(usOpCode == 0xFCC1){
BT_DBG("recv host awake command event 0x%04x\n", (int)usOpCode);
//mt_bt_enable_irq();
}
break;
}
}
if(!iDiscard){
hci_recv_frame(h4->rx_skb);
}
else{
kfree_skb(h4->rx_skb);
}
h4->rx_state = H4_W4_PACKET_TYPE;
h4->rx_skb = NULL;
continue;
case H4_W4_EVENT_HDR:
eh = hci_event_hdr(h4->rx_skb);
BT_DBG("Event header: evt 0x%2.2x plen %d", eh->evt, eh->plen);
h4_check_data_len(h4, eh->plen);
continue;
case H4_W4_ACL_HDR:
ah = hci_acl_hdr(h4->rx_skb);
dlen = __le16_to_cpu(ah->dlen);
BT_DBG("ACL header: dlen %d", dlen);
h4_check_data_len(h4, dlen);
continue;
case H4_W4_SCO_HDR:
sh = hci_sco_hdr(h4->rx_skb);
BT_DBG("SCO header: dlen %d", sh->dlen);
h4_check_data_len(h4, sh->dlen);
continue;
}
}
/* H4_W4_PACKET_TYPE */
switch (*ptr) {
case HCI_EVENT_PKT:
BT_DBG("Event packet");
h4->rx_state = H4_W4_EVENT_HDR;
h4->rx_count = HCI_EVENT_HDR_SIZE;
type = HCI_EVENT_PKT;
break;
case HCI_ACLDATA_PKT:
BT_DBG("ACL packet");
h4->rx_state = H4_W4_ACL_HDR;
h4->rx_count = HCI_ACL_HDR_SIZE;
type = HCI_ACLDATA_PKT;
break;
case HCI_SCODATA_PKT:
BT_DBG("SCO packet");
h4->rx_state = H4_W4_SCO_HDR;
h4->rx_count = HCI_SCO_HDR_SIZE;
type = HCI_SCODATA_PKT;
break;
default:
BT_ERR("Unknown HCI packet type %2.2x", (__u8)*ptr);
hu->hdev->stat.err_rx++;
ptr++; count--;
continue;
};
ptr++; count--;
/* Allocate packet */
h4->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
if (!h4->rx_skb) {
BT_ERR("Can't allocate mem for new packet");
h4->rx_state = H4_W4_PACKET_TYPE;
h4->rx_count = 0;
return 0;
}
h4->rx_skb->dev = (void *) hu->hdev;
bt_cb(h4->rx_skb)->pkt_type = type;
}
return count;
}
