Commit FS#12150 - Fully-functional audio mixer - and finally whip old limitations about playback of voice and other sounds when paused. Channels are independent in state and amplitude. Fade on stop/pause is handled by the channel's volume control rather than global volume which means it now works from anywhere. Opens up the possibility of plugin sounds during music playback by merely adding an additional channel enum. If any PCM drivers were not properly modified, see one of the last comments in the task for a description of the simple change that is expected. Some params are tunable in firmware/export/pcm-mixer.h as well.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30097 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 4 insertions, 0 deletions

diff --git a/firmware/target/coldfire/pcm-coldfire.c b/firmware/target/coldfire/pcm-coldfire.c
index a06542c31f..85eeaec815 100644
--- a/firmware/target/coldfire/pcm-coldfire.c
+++ b/firmware/target/coldfire/pcm-coldfire.c
@@ -28,6 +28,7 @@
 #if defined(HAVE_SPDIF_REC) || defined(HAVE_SPDIF_OUT)
 #include "spdif.h"
 #endif
+#include "pcm-internal.h"
 
 #define IIS_PLAY_DEFPARM ( (freq_ent[FPARM_CLOCKSEL] << 12) | \
                            (IIS_PLAY & (7 << 8)) | \
@@ -318,6 +319,9 @@ void DMA0(void)
         SAR0 = (unsigned long)start;     /* Source address */
         BCR0 = size;                     /* Bytes to transfer */
         or_l(DMA_EEXT | DMA_INT, &DCR0); /* per request and int ON */
+
+        /* Call buffer callback */
+        pcm_play_dma_started_callback();
     }
     /* else inished playing */
 } /* DMA0 */