/*
* Start transfering (flags or data) on the B channel, since
* FIFO counters has been set to a non-zero value.
*/
static void st5481B_start_xfer(void *context)
{
struct st5481_bcs *bcs = context;
DBG(4,"B%d",bcs->channel+1);
// Start transmitting (flags or data) on B channel
usb_b_out(bcs,0);
usb_b_out(bcs,1);
}
static void usb_b_out_complete(struct urb *urb, struct pt_regs *regs)
{
struct st5481_bcs *bcs = urb->context;
struct st5481_b_out *b_out = &bcs->b_out;
struct st5481_adapter *adapter = bcs->adapter;
int buf_nr;
buf_nr = get_buf_nr(b_out->urb, urb);
test_and_clear_bit(buf_nr, &b_out->busy);
if (unlikely(urb->status < 0)) {
switch (urb->status) {
case -ENOENT:
case -ESHUTDOWN:
case -ECONNRESET:
DBG(4,"urb killed status %d", urb->status);
return; // Give up
default:
WARN("urb status %d",urb->status);
if (b_out->busy == 0) {
st5481_usb_pipe_reset(adapter, (bcs->channel+1)*2 | USB_DIR_OUT, NULL, NULL);
}
break;
}
}
usb_b_out(bcs,buf_nr);
if (adapter->number_of_leds == 2)
led_blink(adapter);
}
static void usb_b_out_complete(struct urb *urb)
{
struct st5481_bcs *bcs = urb->context;
struct st5481_b_out *b_out = &bcs->b_out;
struct st5481_adapter *adapter = bcs->adapter;
int buf_nr;
buf_nr = get_buf_nr(b_out->urb, urb);
test_and_clear_bit(buf_nr, &b_out->busy);
if (urb->status < 0) {
if (urb->status != USB_ST_URB_KILLED) {
WARN("urb status %d",urb->status);
if (b_out->busy == 0) {
st5481_usb_pipe_reset(adapter, (bcs->channel+1)*2 | USB_DIR_OUT, NULL, NULL);
}
} else {
DBG(1,"urb killed");
return; // Give up
}
}
usb_b_out(bcs,buf_nr);
if (adapter->number_of_leds == 2)
led_blink(adapter);
}
