Gigabeat S: Implement i2c driver - transmit works but no testing of receiving which will get a chance later. Add some seeds for codec driver. Correct a few #defines.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17254 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 60 insertions, 0 deletions

diff --git a/firmware/drivers/audio/wm8978.c b/firmware/drivers/audio/wm8978.c
new file mode 100644
index 0000000000..01f3d331bb
--- /dev/null
+++ b/firmware/drivers/audio/wm8978.c
@@ -0,0 +1,60 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2008 by Michael Sevakis
+ *
+ * Driver for WM8978 audio codec 
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "config.h"
+#include "system.h"
+#include "audiohw.h"
+#include "wmcodec.h"
+#include "audio.h"
+
+const struct sound_settings_info audiohw_settings[] = {
+    [SOUND_VOLUME]        = {"dB", 0,  1, -58,   6, -25},
+    [SOUND_BASS]          = {"dB", 0,  1, -12,  12,   0},
+    [SOUND_TREBLE]        = {"dB", 0,  1, -12,  12,   0},
+    [SOUND_BALANCE]       = {"%",  0,  1,-100, 100,   0},
+    [SOUND_CHANNELS]      = {"",   0,  1,   0,   5,   0},
+    [SOUND_STEREO_WIDTH]  = {"%",  0,  5,   0, 250, 100},
+    [SOUND_LEFT_GAIN]     = {"dB", 1,  1,-128,  96,   0},
+    [SOUND_RIGHT_GAIN]    = {"dB", 1,  1,-128,  96,   0},
+    [SOUND_MIC_GAIN]      = {"dB", 1,  1,-128, 108,  16},
+#if 0
+    [SOUND_BASS_CUTOFF]   = {"",   0,  1,   1,   4,   1},
+    [SOUND_TREBLE_CUTOFF] = {"",   0,  1,   1,   4,   1},
+#endif
+};
+
+void audiohw_preinit(void)
+{
+    wmcodec_write(WM8978_SOFTWARE_RESET, 0);
+}
+
+void audiohw_postinit(void)
+{
+    sleep(HZ);
+}
+
+void audiohw_close(void)
+{
+}
+
+void audiohw_mute(bool mute)
+{
+    (void)mute;
+}