Onda VX747:

* Commit (premature) SD, USB & audio drivers
 * Fix ramdisk.c mistake
 * Add battery readout


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19011 a1c6a512-1295-4272-9138-f99709370657

firmware/target/mips/ingenic_jz47xx/pcm-jz4740.c

@@ -0,0 +1,164 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2008 by Maurus Cuelenaere
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "system.h"
+#include "kernel.h"
+#include "logf.h"
+#include "audio.h"
+#include "sound.h"
+#include "pcm.h"
+#include "jz4740.h"
+
+/****************************************************************************
+ ** Playback DMA transfer
+ **/
+
+void pcm_postinit(void)
+{
+    audiohw_postinit(); /* implemented not for all codecs */
+    pcm_apply_settings();
+}
+
+const void * pcm_play_dma_get_peak_buffer(int *count)
+{
+    /* TODO */
+    *count = 0;
+    return NULL;
+}
+
+void pcm_play_dma_init(void)
+{
+    /* TODO */
+
+    /* Initialize default register values. */
+    audiohw_init();
+
+    /* Power on */
+    audiohw_enable_output(true);
+    
+    /* Unmute the master channel (DAC should be at zero point now). */
+    audiohw_mute(false);
+}
+
+void pcm_apply_settings(void)
+{
+    /* TODO */
+}
+
+void pcm_set_frequency(unsigned int frequency)
+{
+    (void) frequency;
+    /* TODO */
+}
+
+static void play_start_pcm(void)
+{
+    pcm_apply_settings();
+
+    /* TODO */
+}
+
+static void play_stop_pcm(void)
+{
+    /* TODO */
+}
+
+void pcm_play_dma_start(const void *addr, size_t size)
+{
+    (void)addr;
+    (void)size;
+    /* TODO */
+
+    play_start_pcm();
+}
+
+void pcm_play_dma_stop(void)
+{
+    play_stop_pcm();
+    
+    /* TODO */
+}
+
+void pcm_play_lock(void)
+{
+    /* TODO */
+}
+
+void pcm_play_unlock(void)
+{
+   /* TODO */
+}
+
+void pcm_play_dma_pause(bool pause)
+{
+    if(pause)
+        play_stop_pcm();
+    else
+        play_start_pcm();
+    
+}
+
+size_t pcm_get_bytes_waiting(void)
+{
+    /* TODO */
+    return 0;
+}
+
+#ifdef HAVE_RECORDING
+/* TODO */
+void pcm_rec_dma_init(void)
+{
+}
+
+void pcm_rec_dma_close(void)
+{
+}
+
+void pcm_rec_dma_start(void *addr, size_t size)
+{
+    (void) addr;
+    (void) size;
+}
+
+void pcm_rec_dma_stop(void)
+{
+}
+
+void pcm_rec_lock(void)
+{
+}
+
+void pcm_rec_unlock(void)
+{
+}
+
+const void * pcm_rec_dma_get_peak_buffer(int *count)
+{
+    *count = 0;
+    return NULL;
+}
+
+void pcm_record_more(void *start, size_t size)
+{
+    (void) start;
+    (void) size;
+}
+#endif