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Audio 2 config desc patched based on speed (for FS UAC2 mode). Guarded by FULL_SPEED_AUDIO_2

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This commit is contained in:
Ross Owen
2013-09-13 23:36:36 +01:00
parent 3d8193af40
commit a4bace28a6
1 changed files with 22 additions and 0 deletions
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22
module_usb_audio/endpoint0/endpoint0.xc
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@@ -124,6 +124,7 @@ void Endpoint0( chanend c_ep0_out, chanend c_ep0_in, chanend c_audioControl,
chanend ?c_mix_ctl, chanend ?c_clk_ctl, chanend ?c_usb_test)
{
unsigned char buffer[2];
USB_SetupPacket_t sp;
XUD_ep ep0_out = XUD_InitEp(c_ep0_out);
XUD_ep ep0_in = XUD_InitEp(c_ep0_in);
@@ -613,6 +614,27 @@ void Endpoint0( chanend c_ep0_out, chanend c_ep0_in, chanend c_audioControl,
devDesc_Audio1, sizeof(devDesc_Audio1),
cfgDesc_Audio1, sizeof(cfgDesc_Audio1),
strDescs, sp, c_usb_test, g_curUsbSpeed);
#elif FULL_SPEED_AUDIO_2
/* Return Audio 2.0 Descriptors for high_speed and full-speed */
/* Unfortunately we need to munge the descriptors a bit between full and high-speed */
if(g_curUsbSpeed == XUD_SPEED_HS)
{
/* Mod bSlotSize */
cfgDesc_Audio2[STREAMING_ALT1_OFFSET+4] = 4;
}
else
{
/* Mod bSlotSize */
cfgDesc_Audio2[STREAMING_ALT1_OFFSET+4] = 3;
}
retVal = USB_StandardRequests(ep0_out, ep0_in,
devDesc_Audio2, sizeof(devDesc_Audio2),
cfgDesc_Audio2, sizeof(cfgDesc_Audio2),
null, 0,
null, 0,
strDescs, sp, c_usb_test, g_curUsbSpeed);
#else
/* Return Audio 2.0 Descriptors with Null device as fallback */
retVal = USB_StandardRequests(ep0_out, ep0_in,