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enhance device msc response in case of STALL response

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hathach 2018-07-25 22:21:14 +07:00
parent 544f9c1315
commit be7b0caf2d
1 changed files with 27 additions and 18 deletions
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45
src/class/msc/msc_device.c
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@ -348,7 +348,7 @@ tusb_error_t mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, tusb_event_t event, u
memmove(_mscd_buf, _mscd_buf+nbytes, xferred_bytes-nbytes);
}
// simulate an transfer complete with adjusted params
// simulate an transfer complete with adjusted parameters --> this driver callback will fired again
dcd_xfer_complete(rhport, p_msc->ep_out, xferred_bytes-nbytes, true);
return TUSB_ERROR_NONE; // skip the rest
@ -395,27 +395,36 @@ tusb_error_t mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, tusb_event_t event, u
if ( p_msc->stage == MSC_STAGE_STATUS )
{
// Invoke complete callback if defined
if ( SCSI_CMD_READ_10 == p_cbw->command[0])
// Either endpoints is stalled, need to wait until it is cleared by host
if ( dcd_edpt_stalled(rhport, p_msc->ep_in) || dcd_edpt_stalled(rhport, p_msc->ep_out) )
{
if ( tud_msc_read10_complete_cb ) tud_msc_read10_complete_cb(p_cbw->lun);
}
else if ( SCSI_CMD_WRITE_10 == p_cbw->command[0] )
{
if ( tud_msc_write10_complete_cb ) tud_msc_write10_complete_cb(p_cbw->lun);
// simulate an transfer complete with adjusted parameters --> this driver callback will fired again
dcd_xfer_complete(rhport, p_msc->ep_out, 0, true);
}
else
{
if ( tud_msc_scsi_complete_cb ) tud_msc_scsi_complete_cb(p_cbw->lun, p_cbw->command);
// Invoke complete callback if defined
if ( SCSI_CMD_READ_10 == p_cbw->command[0])
{
if ( tud_msc_read10_complete_cb ) tud_msc_read10_complete_cb(p_cbw->lun);
}
else if ( SCSI_CMD_WRITE_10 == p_cbw->command[0] )
{
if ( tud_msc_write10_complete_cb ) tud_msc_write10_complete_cb(p_cbw->lun);
}
else
{
if ( tud_msc_scsi_complete_cb ) tud_msc_scsi_complete_cb(p_cbw->lun, p_cbw->command);
}
// Move to default CMD stage after sending status
p_msc->stage = MSC_STAGE_CMD;
TU_ASSERT( dcd_edpt_xfer(rhport, p_msc->ep_in , (uint8_t*) &p_msc->csw, sizeof(msc_csw_t)) );
//------------- Queue the next CBW -------------//
TU_ASSERT( dcd_edpt_xfer(rhport, p_msc->ep_out, (uint8_t*) &p_msc->cbw, sizeof(msc_cbw_t)) );
}
// Move to default CMD stage after sending status
p_msc->stage = MSC_STAGE_CMD;
TU_ASSERT( dcd_edpt_xfer(rhport, p_msc->ep_in , (uint8_t*) &p_msc->csw, sizeof(msc_csw_t)) );
//------------- Queue the next CBW -------------//
TU_ASSERT( dcd_edpt_xfer(rhport, p_msc->ep_out, (uint8_t*) &p_msc->cbw, sizeof(msc_cbw_t)) );
}
return TUSB_ERROR_NONE;
@ -450,7 +459,7 @@ static void proc_read10_cmd(uint8_t rhport, mscd_interface_t* p_msc)
}
else if ( nbytes == 0 )
{
// zero means not ready -> try again later by simulate an transfer complete
// zero means not ready -> simulate an transfer complete so that this driver callback will fired again
dcd_xfer_complete(rhport, p_msc->ep_in, 0, true);
}
else