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DSD native mode now outputs mute pattern on invalid freq. Previously only output clks. Helps with pop issue when changing pcm/dsd versions in foobar. (BUG #14769)

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Ross Owen
2014-01-20 18:11:50 +00:00
parent 0da282dd1c
commit e53de21f7a
1 changed files with 3 additions and 14 deletions
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17
module_usb_audio/audio.xc
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@@ -509,22 +509,9 @@ static inline void doI2SClocks(unsigned divide)
dsdSample_r = bitrev(byterev(dsdSample_r));
dsdSample_l = bitrev(byterev(dsdSample_l));
/* Output DSD data to ports then 32 clocks */
switch (divide)
{
case 8:
/* Output DSD data to ports then 32 clocks */
asm volatile("out res[%0], %1"::"r"(p_dsd_dac[0]),"r"(dsdSample_l));
asm volatile("out res[%0], %1"::"r"(p_dsd_dac[1]),"r"(dsdSample_r));
p_dsd_clk <: 0xF0F0F0F0;
p_dsd_clk <: 0xF0F0F0F0;
p_dsd_clk <: 0xF0F0F0F0;
p_dsd_clk <: 0xF0F0F0F0;
p_dsd_clk <: 0xF0F0F0F0;
p_dsd_clk <: 0xF0F0F0F0;
p_dsd_clk <: 0xF0F0F0F0;
p_dsd_clk <: 0xF0F0F0F0;
break;
case 4:
asm volatile("out res[%0], %1"::"r"(p_dsd_dac[0]),"r"(dsdSample_l));
asm volatile("out res[%0], %1"::"r"(p_dsd_dac[1]),"r"(dsdSample_r));
@@ -543,6 +530,8 @@ static inline void doI2SClocks(unsigned divide)
default:
/* Do some clocks anyway - this will stop us interrupting decouple too much */
asm volatile("out res[%0], %1"::"r"(p_dsd_dac[0]),"r"(dsdSample_l));
asm volatile("out res[%0], %1"::"r"(p_dsd_dac[1]),"r"(dsdSample_r));
p_dsd_clk <: 0xF0F0F0F0;
p_dsd_clk <: 0xF0F0F0F0;
p_dsd_clk <: 0xF0F0F0F0;