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Audio bugfixes. Should wait for voice codec to reload before returning buffer when stealing voice. Certain variables that get or may get used during an IRQ should be declared 'volatile'.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11572 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2006-11-22 09:13:14 +00:00
parent ee61057cea
commit fbac4f8444
4 changed files with 30 additions and 17 deletions
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27
apps/playback.c
View file

@ -396,8 +396,18 @@ unsigned char *audio_get_buffer(bool talk_buf, size_t *buffer_size)
logf("get buffer: talk_buf");
/* ok to use everything from audiobuf to audiobufend */
if (buffer_state != BUFFER_STATE_TRASHED)
{
talk_buffer_steal();
buffer_state = BUFFER_STATE_TRASHED;
#ifdef PLAYBACK_VOICE
if (NULL != iram_buf[CODEC_IDX_VOICE])
{
/* Voice could be swapped out - wait for it to return */
while (current_codec != CODEC_IDX_VOICE)
yield();
}
#endif /* PLAYBACK_VOICE */
buffer_state = BUFFER_STATE_TRASHED;
}
}
else
{
@ -423,6 +433,10 @@ void audio_iram_steal(void)
#ifdef PLAYBACK_VOICE
if (NULL != iram_buf[CODEC_IDX_VOICE])
{
/* Can't already be stolen */
if (voice_iram_stolen)
return;
/* Wait for voice to swap back in if current codec was audio */
while (current_codec != CODEC_IDX_VOICE)
yield();
@ -455,15 +469,14 @@ unsigned char *audio_get_recording_buffer(size_t *buffer_size)
#ifdef PLAYBACK_VOICE
#ifdef IRAM_STEAL
end = dram_buf[CODEC_IDX_VOICE] ?
dram_buf[CODEC_IDX_VOICE] : audiobufend;
end = dram_buf[CODEC_IDX_VOICE];
#else
end = iram_buf[CODEC_IDX_VOICE] ?
iram_buf[CODEC_IDX_VOICE] : audiobufend;
end = iram_buf[CODEC_IDX_VOICE];
#endif /* IRAM_STEAL */
#else
end = audiobufend;
if (NULL == end)
#endif /* PLAYBACK_VOICE */
end = audiobufend;
buffer_state = BUFFER_STATE_TRASHED;

6
firmware/pcm_playback.c
View file

@ -48,9 +48,9 @@
be shared semi-privately **/
/* the registered callback function to ask for more mp3 data */
pcm_more_callback_type pcm_callback_for_more = NULL;
bool pcm_playing = false;
bool pcm_paused = false;
volatile pcm_more_callback_type pcm_callback_for_more = NULL;
volatile bool pcm_playing = false;
volatile bool pcm_paused = false;
void pcm_play_dma_start(const void *addr, size_t size);
void pcm_play_dma_stop(void);

4
firmware/pcm_record.c
View file

@ -55,9 +55,9 @@
be shared semi-privately **/
/* the registered callback function for when more data is available */
pcm_more_callback_type pcm_callback_more_ready = NULL;
volatile pcm_more_callback_type pcm_callback_more_ready = NULL;
/* DMA transfer in is currently active */
bool pcm_recording = false;
volatile bool pcm_recording = false;
/* APIs implemented in the target-specific portion */
void pcm_rec_dma_start(const void *addr, size_t size);

10
firmware/target/coldfire/pcm-coldfire.c
View file

@ -44,13 +44,13 @@
/** Semi-private shared symbols **/
/* the registered callback function to ask for more pcm data */
extern pcm_more_callback_type pcm_callback_for_more;
extern bool pcm_playing;
extern bool pcm_paused;
extern volatile pcm_more_callback_type pcm_callback_for_more;
extern volatile bool pcm_playing;
extern volatile bool pcm_paused;
/* the registered callback function for when more data is available */
extern pcm_more_callback_type pcm_callback_more_ready;
extern bool pcm_recording;
extern volatile pcm_more_callback_type pcm_callback_more_ready;
extern volatile bool pcm_recording;
/* peaks */
static int play_peak_left, play_peak_right;