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A more elegant solution to the DSD stop_clock() pausing issue. Just set ALL clocks to 0 before deliver returns

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This commit is contained in:
Ross Owen
2013-10-16 19:09:21 +01:00
parent 5f22f37396
commit 6c5253abb0
2 changed files with 10 additions and 11 deletions
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16
module_usb_audio/ports/audioports.xc
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@@ -32,16 +32,7 @@ unsigned int divide)
{
#ifndef CODEC_MASTER
/* Output 0 on BCLK to ensure clock is low
* Required as stop_clock will only complete when the clock is low
*/
// configure_out_port_no_ready(p_bclk, clk_audio_mclk, 0);
// p_bclk <: 0;
/* Stop_clock() will not complete if the source to the clock-block is not low
* since we are switching between DSD and I2S we grab the source from the clock
* -block and set it low
*/
#if 0
{
unsigned clockResId;
unsigned portResId;
@@ -50,6 +41,11 @@ unsigned int divide)
if(portResId !=1)
asm("out res[%0], %1":: "r"(portResId), "r"(0));
}
#endif
/* 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 - however, if you are having trouble the code
* above can be enabled */
stop_clock(clk_audio_bclk);
if(!isnull(p_lrclk))