dengweijie/lib_xua
1
0
Fork 0
forked from PAWPAW-Mirror/lib_xua
Code Pull Requests Activity

Changes to support DSD Native mode

Browse Source
This commit is contained in:
Ross Owen
2013-08-23 14:23:37 +01:00
parent bbb4999318
commit 1e33bf819d
7 changed files with 217 additions and 72 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
module_usb_audio/usb_buffer/usb_buffer.xc
View File

@@ -278,7 +278,7 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
}
#endif
/* Sample Freq our chan count update from ep 0 */
/* Sample Freq or chan count update from ep 0 */
case testct_byref(c_aud_ctl, u_tmp):
{
if (u_tmp)
@@ -354,19 +354,18 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
else
{
sampleFreq = inuint(c_aud_ctl);
SET_SHARED_GLOBAL0(g_freqChange, tmp); /* Set command */
SET_SHARED_GLOBAL0(g_freqChange, tmp); /* Set command */
SET_SHARED_GLOBAL(g_freqChange_sampFreq, sampleFreq); /* Set flag */
SET_SHARED_GLOBAL(g_freqChange_flag, tmp);
}
}
break;
}
#define MASK_16_13 (7) // Bits that should not be transmitted as part of feedback.
#define MASK_16_10 (127) //(63) /* For Audio 1.0 we use a mask 1 bit longer than expected to avoid Windows LSB isses */
#define MASK_16_13 (7) /* Bits that should not be transmitted as part of feedback */
#define MASK_16_10 (127) /* For Audio 1.0 we use a mask 1 bit longer than expected to avoid Windows LSB issues */
/* (previously used 63 instead of 127) */
case inuint_byref(c_sof, u_tmp):
@@ -381,7 +380,7 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
if(freqChange == SET_SAMPLE_FREQ)
{
/* Keep getting MCLK counts */
lastClock = u_tmp;
lastClock = u_tmp;
}
else
{
@@ -434,7 +433,9 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
}
}
#ifdef FB_TOLERANCE_TEST
else {
else
{
}
#endif
clocks = 0;
@@ -697,7 +698,6 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
else
{
// Too many events from device - drop
//printstr("DROP");
}
/* Once we have the whole message, sent it to host */