Gigabeat S: Implement an SDMA API and use it in the PCM driver. Some other miscellaneous adjustments to recording and PCM buffer to accomodate use of physical addresses and cache coherency.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19949 a1c6a512-1295-4272-9138-f99709370657

2 files changed, 7 insertions, 2 deletions

diff --git a/apps/pcmbuf.c b/apps/pcmbuf.c
index 99e56d160d..6e2234880e 100644
--- a/apps/pcmbuf.c
+++ b/apps/pcmbuf.c
@@ -1001,6 +1001,11 @@ void pcmbuf_beep(unsigned int frequency, size_t duration, int amplitude)
         /* Give 5ms clearance. */    
         bufstart += NATIVE_FREQUENCY * 4 / 200;
 
+#ifdef HAVE_PCM_DMA_ADDRESS
+        /* Returned peak addresses are DMA addresses */
+        bufend = pcm_dma_addr(bufend);
+#endif
+
         /* Wrapped above? */
         if (bufstart >= bufend)
             bufstart -= pcmbuf_size;
diff --git a/apps/recorder/pcm_record.c b/apps/recorder/pcm_record.c
index 8642150b18..8657aee1ba 100644
--- a/apps/recorder/pcm_record.c
+++ b/apps/recorder/pcm_record.c
@@ -1148,8 +1148,8 @@ static void pcmrec_init(void)
 
     buffer = audio_get_recording_buffer(&rec_buffer_size);
 
-    /* Line align pcm_buffer 2^4=16 bytes */
-    pcm_buffer = (unsigned char *)ALIGN_UP_P2((uintptr_t)buffer, 4);
+    /* Line align pcm_buffer 2^5=32 bytes */
+    pcm_buffer = (unsigned char *)ALIGN_UP_P2((uintptr_t)buffer, 5);
     enc_buffer = pcm_buffer + ALIGN_UP_P2(PCM_NUM_CHUNKS*PCM_CHUNK_SIZE +
                                           PCM_MAX_FEED_SIZE, 2);
     /* Adjust available buffer for possible align advancement */