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Merge pull request #175 from xmos/QuinnWang-patch-1

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decouple update for DFU "fake" SET_SAMPLE_FREQ special processing
This commit is contained in:
Ross Owen
2022-03-07 11:11:23 +00:00
committed by GitHub
parent 1f994be63e cd5f7272c8
commit fdc99ffccb
1 changed files with 27 additions and 23 deletions
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50
lib_xua/src/core/buffer/decouple/decouple.xc
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@@ -747,29 +747,32 @@ void XUA_Buffer_Decouple(chanend c_mix_out
inuint(c_mix_out); inuint(c_mix_out);
outct(c_mix_out, SET_SAMPLE_FREQ); outct(c_mix_out, SET_SAMPLE_FREQ);
outuint(c_mix_out, sampFreq); outuint(c_mix_out, sampFreq);
inUnderflow = 1; if(sampFreq != AUDIO_STOP_FOR_DFU)
SET_SHARED_GLOBAL(g_aud_to_host_rdptr, aud_to_host_fifo_start);
SET_SHARED_GLOBAL(g_aud_to_host_wrptr, aud_to_host_fifo_start);
SET_SHARED_GLOBAL(g_aud_to_host_dptr,aud_to_host_fifo_start+4);
/* Set buffer to send back to zeros buffer */
SET_SHARED_GLOBAL(g_aud_to_host_buffer, g_aud_to_host_zeros);
/* Update size of zeros buffer (and sampsToWrite) */
SetupZerosSendBuffer(aud_to_host_usb_ep, sampFreq, g_curSubSlot_In);
/* Reset OUT buffer state */
outUnderflow = 1;
SET_SHARED_GLOBAL(g_aud_from_host_rdptr, aud_from_host_fifo_start);
SET_SHARED_GLOBAL(g_aud_from_host_wrptr, aud_from_host_fifo_start);
SET_SHARED_GLOBAL(aud_data_remaining_to_device, 0);
if(outOverflow)
{ {
/* If we were previously in overflow we wont have marked as ready */ inUnderflow = 1;
XUD_SetReady_OutPtr(aud_from_host_usb_ep, aud_from_host_fifo_start+4); SET_SHARED_GLOBAL(g_aud_to_host_rdptr, aud_to_host_fifo_start);
outOverflow = 0; SET_SHARED_GLOBAL(g_aud_to_host_wrptr, aud_to_host_fifo_start);
SET_SHARED_GLOBAL(g_aud_to_host_dptr,aud_to_host_fifo_start+4);
/* Set buffer to send back to zeros buffer */
SET_SHARED_GLOBAL(g_aud_to_host_buffer, g_aud_to_host_zeros);
/* Update size of zeros buffer (and sampsToWrite) */
SetupZerosSendBuffer(aud_to_host_usb_ep, sampFreq, g_curSubSlot_In);
/* Reset OUT buffer state */
outUnderflow = 1;
SET_SHARED_GLOBAL(g_aud_from_host_rdptr, aud_from_host_fifo_start);
SET_SHARED_GLOBAL(g_aud_from_host_wrptr, aud_from_host_fifo_start);
SET_SHARED_GLOBAL(aud_data_remaining_to_device, 0);
if(outOverflow)
{
/* If we were previously in overflow we wont have marked as ready */
XUD_SetReady_OutPtr(aud_from_host_usb_ep, aud_from_host_fifo_start+4);
outOverflow = 0;
}
} }
/* Wait for handshake back and pass back up */ /* Wait for handshake back and pass back up */
@@ -780,7 +783,8 @@ void XUA_Buffer_Decouple(chanend c_mix_out
ENABLE_INTERRUPTS(); ENABLE_INTERRUPTS();
speedRem = 0; if(sampFreq != AUDIO_STOP_FOR_DFU)
speedRem = 0;
continue; continue;
} }
#if (AUDIO_CLASS == 2) #if (AUDIO_CLASS == 2)