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Rework audio driver

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This commit is contained in:
Reinhard Panhuber
2021-01-31 19:08:23 +01:00
parent f1551d7a5f
commit 84406f1654
6 changed files with 442 additions and 363 deletions
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10
src/device/usbd.c
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@@ -1206,12 +1206,16 @@ bool usbd_edpt_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t
}
}
bool usbd_edpt_iso_xfer(uint8_t rhport, uint8_t ep_addr, tu_fifo_t * ff)
// The number of bytes has to be given explicitly to allow more flexible control of how many
// bytes should be written and second to keep the return value free to give back a boolean
// success message. If total_bytes is too big, the FIFO will copy only what is available
// into the USB buffer!
bool usbd_edpt_iso_xfer(uint8_t rhport, uint8_t ep_addr, tu_fifo_t * ff, uint16_t total_bytes)
{
uint8_t const epnum = tu_edpt_number(ep_addr);
uint8_t const dir = tu_edpt_dir(ep_addr);
TU_LOG2(" Queue ISO EP %02X with %u bytes ... ", ep_addr, tu_fifo_count(ff));
TU_LOG2(" Queue ISO EP %02X with %u bytes ... ", ep_addr, count);
// Attempt to transfer on a busy endpoint, sound like an race condition !
TU_ASSERT(_usbd_dev.ep_status[epnum][dir].busy == 0);
@@ -1220,7 +1224,7 @@ bool usbd_edpt_iso_xfer(uint8_t rhport, uint8_t ep_addr, tu_fifo_t * ff)
// and usbd task can preempt and clear the busy
_usbd_dev.ep_status[epnum][dir].busy = true;
if ( dcd_edpt_iso_xfer(rhport, ep_addr, ff) )
if (dcd_edpt_iso_xfer(rhport, ep_addr, ff, total_bytes))
{
TU_LOG2("OK\r\n");
return true;