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EnableBufferedPort() now run on p_dsd_clk on every audio port config. This is because deliver sets p_dsd_clk low to ensure that stop_clock() completes. This avoids a run time exception when p_dsd_clk is not yet turned on.

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This commit is contained in:
Ross Owen
2014-03-27 19:43:59 +00:00
parent 23eaa438a5
commit a9815ca850
2 changed files with 16 additions and 6 deletions
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13
module_usb_audio/devicedefines.h
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@@ -619,12 +619,17 @@ enum USBEndpointNumber_Out
#define MAX_VOL (0x20000000)
#ifdef SELF_POWERED
#define BMAX_POWER 0
/* Default to taking no power from the bus in self-powered mode */
#ifndef BMAX_POWER
#define BMAX_POWER 0
#endif
#else
#ifndef BMAX_POWER
#define BMAX_POWER 250
#endif
/* Default to taking 500mA from the bus in bus-powered mode */
#ifndef BMAX_POWER
#define BMAX_POWER 250
#endif
#endif

9
module_usb_audio/ports/audioports.c
View File

@@ -53,7 +53,13 @@ void ConfigAudioPortsWrapper(
#endif
unsigned int divide, unsigned int dsdMode)
{
/* Ensure dsd clock is on in all modes since I2S mode sets it low on exit
* to avoid stop_clock() potentially pausing forever. If this is not done
* an exception will be raised with audio() attempts to set this port low
*/
/* TODO Do we really need to do this on every SF change? Once is probably enough */
EnableBufferedPort(p_dsd_clk, 32);
if(dsdMode)
{
/* Make sure the ports are on and buffered - just in case they are not shared with I2S */
@@ -61,7 +67,6 @@ unsigned int divide, unsigned int dsdMode)
{
EnableBufferedPort(p_dsd_dac[i], 32);
}
EnableBufferedPort(p_dsd_clk, 32);
ConfigAudioPorts(
#if (DSD_CHANS_DAC != 0)