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Fix to ensure port clocking clock block is 0 to avoid lockup on DSD->PCM mode

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ed-xmos
2014-07-09 14:55:08 +01:00
parent 7c8e64ee87
commit 97987767b2
1 changed files with 12 additions and 0 deletions
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12
module_usb_audio/ports/audioports.xc
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@@ -35,6 +35,18 @@ unsigned int divide)
/* Note this call to stop_clock() will pause forever if the port clocking the clock-block is not low. /* Note this call to stop_clock() will pause forever if the port clocking the clock-block is not low.
* deliver() should return with this being the case */ * deliver() should return with this being the case */
/* get the port id of the clock block source and set it to zero */
{
unsigned clockResId;
unsigned portResId;
asm("add %0, %1, %2": "=r"(clockResId):"r"(clk_audio_bclk), "r"(0));
portResId = getps(clockResId | (XS1_RES_PS_CLKSRC << 4) );
if(portResId != 1)
asm("out res[%0], %1":: "r"(portResId), "r"(0));
}
stop_clock(clk_audio_bclk); stop_clock(clk_audio_bclk);
if(!isnull(p_lrclk)) if(!isnull(p_lrclk))