AS3525v1/v2:

Fix problems with volume of recorded material by converting 14-bit samples to
16-bit. Remove duplicate samples from recorded data and support proper
samplerate since ADC runs 1/2 the codec clock. Support monitoring mono on both
output channels by feeding data manually to I2SOUT under the right conditions.

DMA is no longer used for recording since frames must be processed as described
above but it does allow full-duplex audio.

Miscellaneous change includes a proper constant (HW_SAMPR_DEFAULT) to reset the
hardware samplerate when recording is closed. PP5024 and AS3525 have different
default recording rates (22kHz and 44kHz respectively) but both have half-speed
ADC.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31180 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 1 insertions, 8 deletions

diff --git a/firmware/pcm.c b/firmware/pcm.c
index f5efb4f84e..d1a897dcab 100644
--- a/firmware/pcm.c
+++ b/firmware/pcm.c
@@ -393,21 +393,14 @@ void pcm_set_frequency(unsigned int samplerate)
     int index;
 
 #ifdef CONFIG_SAMPR_TYPES
-#ifdef HAVE_RECORDING
     unsigned int type = samplerate & SAMPR_TYPE_MASK;
-#endif
     samplerate &= ~SAMPR_TYPE_MASK;
 
-#ifdef HAVE_RECORDING
-#if SAMPR_TYPE_REC != 0
     /* For now, supported targets have direct conversion when configured with
      * CONFIG_SAMPR_TYPES.
      * Some hypothetical target with independent rates would need slightly
      * different handling throughout this source. */
-    if (type == SAMPR_TYPE_REC)
-        samplerate = pcm_sampr_type_rec_to_play(samplerate);
-#endif
-#endif /* HAVE_RECORDING */
+    samplerate = pcm_sampr_to_hw_sampr(samplerate, type);
 #endif /* CONFIG_SAMPR_TYPES */
 
     index = round_value_to_list32(samplerate, hw_freq_sampr,