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libusb: handle completed SCO transfers already queue for processing in usb_sco_stop

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This commit is contained in:
Matthias Ringwald 2021-04-13 16:31:09 +02:00
parent 78a72d5e81
commit e0828146ae
1 changed files with 54 additions and 10 deletions
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64
platform/libusb/hci_transport_h2_libusb.c
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@ -287,7 +287,7 @@ LIBUSB_CALL static void async_callback(struct libusb_transfer *transfer){
for (c=0;c<SCO_IN_BUFFER_COUNT;c++){
if (transfer == sco_in_transfer[c]){
libusb_free_transfer(transfer);
sco_in_transfer[c] = 0;
sco_in_transfer[c] = NULL;
return;
}
}
@ -296,7 +296,7 @@ LIBUSB_CALL static void async_callback(struct libusb_transfer *transfer){
if (transfer == sco_out_transfers[c]){
sco_out_transfers_in_flight[c] = 0;
libusb_free_transfer(transfer);
sco_out_transfers[c] = 0;
sco_out_transfers[c] = NULL;
return;
}
}
@ -877,19 +877,61 @@ static void usb_sco_stop(void){
log_info("usb_sco_stop");
sco_shutdown = 1;
// Free SCO transfers already in queue
struct libusb_transfer* transfer = handle_packet;
struct libusb_transfer* prev_transfer = NULL;
while (transfer != NULL) {
uint16_t c;
bool drop_transfer = false;
for (c=0;c<SCO_IN_BUFFER_COUNT;c++){
if (transfer == sco_in_transfer[c]){
sco_in_transfer[c] = NULL;
drop_transfer = true;
break;
}
}
for (c=0;c<SCO_OUT_BUFFER_COUNT;c++){
if (transfer == sco_out_transfers[c]){
sco_out_transfers_in_flight[c] = 0;
sco_out_transfers[c] = NULL;
drop_transfer = true;
break;
}
}
struct libusb_transfer * next_transfer = (struct libusb_transfer *) transfer->user_data;
if (drop_transfer) {
printf("Drop completed SCO transfer %p\n", transfer);
if (prev_transfer == NULL) {
// first item
handle_packet = (struct libusb_transfer *) next_transfer;
} else {
// other item
prev_transfer->user_data = (struct libusb_transfer *) next_transfer;
}
libusb_free_transfer(transfer);
} else {
prev_transfer = transfer;
}
transfer = next_transfer;
}
libusb_set_debug(NULL, LIBUSB_LOG_LEVEL_ERROR);
int c;
for (c = 0 ; c < SCO_IN_BUFFER_COUNT ; c++) {
libusb_cancel_transfer(sco_in_transfer[c]);
if (sco_in_transfer[c] != NULL) {
libusb_cancel_transfer(sco_in_transfer[c]);
}
}
for (c = 0; c < SCO_OUT_BUFFER_COUNT ; c++){
if (sco_out_transfers_in_flight[c]) {
libusb_cancel_transfer(sco_out_transfers[c]);
} else {
libusb_free_transfer(sco_out_transfers[c]);
sco_out_transfers[c] = 0;
if (sco_out_transfers[c] != NULL) {
libusb_free_transfer(sco_out_transfers[c]);
sco_out_transfers[c] = 0;
}
}
}
@ -904,7 +946,7 @@ static void usb_sco_stop(void){
// Cancel all synchronous transfer
for (c = 0 ; c < SCO_IN_BUFFER_COUNT ; c++) {
if (sco_in_transfer[c]){
if (sco_in_transfer[c] != NULL){
completed = 0;
break;
}
@ -913,7 +955,7 @@ static void usb_sco_stop(void){
if (!completed) continue;
for (c=0; c < SCO_OUT_BUFFER_COUNT ; c++){
if (sco_out_transfers[c]){
if (sco_out_transfers[c] != NULL){
completed = 0;
break;
}
@ -1225,8 +1267,10 @@ static int usb_close(void){
log_info("cancel sco_out_transfers[%u] = %p", c, sco_out_transfers[c]);
libusb_cancel_transfer(sco_out_transfers[c]);
} else {
libusb_free_transfer(sco_out_transfers[c]);
sco_out_transfers[c] = 0;
if (sco_out_transfers[c] != NULL){
libusb_free_transfer(sco_out_transfers[c]);
sco_out_transfers[c] = 0;
}
}
}
#endif
@ -1279,7 +1323,7 @@ static int usb_close(void){
if (!completed) continue;
for (c=0; c < SCO_OUT_BUFFER_COUNT ; c++){
if (sco_out_transfers[c]){
if (sco_out_transfers[c] != NULL){
log_info("sco_out_transfers[%u] still active (%p)", c, sco_out_transfers[c]);
completed = 0;
break;