/* 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;
}
/* Recv data */
static int h4_recv(struct hci_uart *hu, void *data, int count)
{
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;
BT_DBG("hu %p count %d rx_state %ld rx_count %ld",
hu, count, h4->rx_state, h4->rx_count);
ptr = data;
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:
BT_DBG("Complete data");
hci_recv_frame(h4->rx_skb);
h4->rx_state = H4_W4_PACKET_TYPE;
h4->rx_skb = NULL;
continue;
case H4_W4_EVENT_HDR:
eh = (struct hci_event_hdr *) h4->rx_skb->data;
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 = (struct hci_acl_hdr *) h4->rx_skb->data;
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 = (struct hci_sco_hdr *) h4->rx_skb->data;
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;
}
/* Recv data */
static int h4_recv(struct hci_uart *hu, void *data, int count)
{
#ifdef CONFIG_RADIO_BCM4343S
struct h4_struct *h4 = hu->priv;
register char *ptr;
struct hci_event_hdr *eh;
struct hci_acl_hdr *ah;
struct hci_sco_hdr *sh;
struct fm_event_hdr *fm;
register int len, type, dlen;
static enum proto_type protoid = PROTO_SH_MAX;
BT_DBG("hu %p count %d rx_state %ld rx_count %ld", hu, count, h4->rx_state, h4->rx_count);
ptr = (char *)data;
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:
BT_DBG("%2x %2x %2x %2x",h4->rx_skb->data[0], h4->rx_skb->data[1], h4->rx_skb->data[2], h4->rx_skb->data[3]);
BT_DBG("%2x %2x %2x %2x",h4->rx_skb->data[4], h4->rx_skb->data[5], h4->rx_skb->data[6], h4->rx_skb->data[7]);
BT_DBG("Complete data");
if ( ( h4->rx_skb->data[3] == 0x15 && h4->rx_skb->data[4] == 0xfc )
|| ( h4->rx_skb->data[0] == 0xff && h4->rx_skb->data[1] == 0x01 && h4->rx_skb->data[2] == 0x08 )
)
{
BT_DBG("FM Event change to FM CH8 packet");
type = FM_CH8_PKT;
h4->rx_skb->cb[0] = FM_CH8_PKT;
h4->rx_state = FM_W4_EVENT_HDR;
protoid = PROTO_SH_FM;
}
hci_uart_route_frame(protoid, hu, h4->rx_skb);
h4->rx_state = H4_W4_PACKET_TYPE;
h4->rx_skb = NULL;
protoid = PROTO_SH_MAX;
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, hu, protoid, 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, hu, protoid, 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, hu, protoid, sh->dlen);
continue;
case FM_W4_EVENT_HDR:
fm = (struct fm_event_hdr *)h4->rx_skb->data;
BT_DBG("FM Header: evt 0x%2.2x plen %d",
fm->event, fm->plen);
h4_check_data_len(h4, hu, PROTO_SH_FM, fm->plen);
continue;
}
}
/* H4_W4_PACKET_TYPE */
switch (*ptr) {
case HCI_EVENT_PKT:
BT_DBG("Event packet");
BT_DBG("%2x %2x %2x %2x",ptr[0], ptr[1], ptr[2], ptr[3]);
BT_DBG("%2x %2x %2x %2x",ptr[4], ptr[5], ptr[6], ptr[7]);
if ( ptr[4] == 0x15 && ptr[5] == 0xfc )
{
BT_DBG("FM Event change to FM CH8 packet");
type = FM_CH8_PKT;
h4->rx_state = FM_W4_EVENT_HDR;
h4->rx_count = FM_EVENT_HDR_SIZE;
protoid = PROTO_SH_FM;
}
else
{
BT_DBG("FM Event is not detected");
h4->rx_state = H4_W4_EVENT_HDR;
h4->rx_count = HCI_EVENT_HDR_SIZE;
type = HCI_EVENT_PKT;
protoid = PROTO_SH_BT;
}
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;
protoid = PROTO_SH_BT;
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;
protoid = PROTO_SH_BT;
break;
/* Channel 8(FM) packet */
case FM_CH8_PKT:
BT_DBG("FM CH8 packet");
type = FM_CH8_PKT;
h4->rx_state = FM_W4_EVENT_HDR;
h4->rx_count = FM_EVENT_HDR_SIZE;
protoid = PROTO_SH_FM;
break;
default:
BT_ERR("Unknown HCI packet type %2.2x", (__u8)*ptr);
hu->hdev->stat.err_rx++;
ptr++; count--;
continue;
};
ptr++; count--;
switch (protoid)
{
case PROTO_SH_BT:
case PROTO_SH_FM:
/* Allocate new packet to hold received data */
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 -ENOMEM;
}
h4->rx_skb->dev = (void *) hu->hdev;
sh_ldisc_cb(h4->rx_skb)->pkt_type = type;
break;
#if 0
case PROTO_SH_FM: /* for FM */
h4->rx_skb = bt_skb_alloc(FM_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 -ENOMEM;
}
/* place holder 0x08 */
/* skb_reserve(h4->rx_skb, 1); */
sh_ldisc_cb(h4->rx_skb)->pkt_type = FM_CH8_PKT;
break;
#endif
case PROTO_SH_MAX:
case PROTO_SH_GPS:
break;
}
}
