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Fixed issue with initial MIDI message and first audio IN packet now used UAC1 chan count define

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This commit is contained in:
Ross Owen
2013-02-07 17:19:56 +00:00
parent 420bbe8120
commit 2765fc58af
1 changed files with 10 additions and 11 deletions
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21
module_usb_audio/usb_buffer/usb_buffer.xc
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@@ -69,7 +69,6 @@ unsigned char fb_clocks[16];
#define FB_TOLERANCE 0x100
extern unsigned inZeroBuff[];
extern unsigned g_numUsbChanIn;
/**
* Buffers data from audio endpoints
* @param c_aud_out chanend for audio from xud
@@ -221,7 +220,7 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
if (usb_speed == XUD_SPEED_HS)
mid*=NUM_USB_CHAN_IN*4;
else
mid*=NUM_USB_CHAN_IN*3;
mid*=NUM_USB_CHAN_IN_A1*3;
asm("stw %0, %1[0]"::"r"(mid),"r"(p_inZeroBuff));
@@ -366,7 +365,7 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
if (usb_speed == XUD_SPEED_HS)
mid *= NUM_USB_CHAN_IN*4;
else
mid *= NUM_USB_CHAN_IN*3;
mid *= NUM_USB_CHAN_IN_A1*3;
asm("stw %0, %1[0]"::"r"(mid),"r"(p_inZeroBuff));
@@ -539,8 +538,7 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
/* Write datalength (tmp) into buffer[0], data stored in buffer[4] onwards */
midi_data_remaining_to_device = tmp;
/* Increment read pointer - buffer[0] is length */
midi_from_host_rdptr = midi_from_host_buffer + 4;
midi_from_host_rdptr = midi_from_host_buffer;
if (midi_data_remaining_to_device)
{
@@ -554,7 +552,8 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
/* MIDI IN to host */
case XUD_SetData_Select(c_midi_to_host, ep_midi_to_host, tmp):
asm("#midi d->h");
#if 1
swap(midi_to_host_buffer, midi_to_host_waiting_buffer);
/* The buffer has been sent to the host, so we can ack the midi thread */
@@ -565,7 +564,7 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
/* Swap the collecting and sending buffer */
swap(midi_to_host_buffer_being_collected, midi_to_host_buffer_being_sent);
/* Request to send packet */
XUD_SetReady_InPtr(ep_midi_to_host, midi_to_host_buffer_being_sent+4, midi_data_collected_from_device);
@@ -578,7 +577,7 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
{
midi_waiting_on_send_to_host = 0;
}
#endif
break;
#endif
@@ -627,10 +626,10 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
{
/* An ack from the midi/uart thread means it has accepted some data we sent it
* we are okay to send another word */
if (midi_data_remaining_to_device == 0)
if (midi_data_remaining_to_device <= 0)
{
/* We have read an entire packet - Mark ready to receive another */
XUD_SetReady_OutPtr(ep_midi_from_host, midi_from_host_buffer+4);
XUD_SetReady_OutPtr(ep_midi_from_host, midi_from_host_buffer);
}
else
{
@@ -664,7 +663,7 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
write_via_xc_ptr(midi_to_host_buffer_being_collected, midi_data_collected_from_device);
swap(midi_to_host_buffer_being_collected, midi_to_host_buffer_being_sent);
// Signal other side to swap
XUD_SetReady_InPtr(ep_midi_to_host, midi_to_host_buffer_being_sent+4, midi_data_collected_from_device);
midi_data_collected_from_device = 0;