1 files changed, 102 insertions, 0 deletions

diff --git a/firmware/target/arm/samsung/akcodec-yh82x_yh92x.c b/firmware/target/arm/samsung/akcodec-yh82x_yh92x.c
new file mode 100644
index 0000000000..bfdd9203ce
--- /dev/null
+++ b/firmware/target/arm/samsung/akcodec-yh82x_yh92x.c
@@ -0,0 +1,102 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (c) 2009 Mark Arigo
+ *
+ * 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 "audiohw.h"
+#include "i2c-pp.h"
+#include "i2s.h"
+#include "akcodec.h"
+
+// #define LOGF_ENABLE
+#include "logf.h"
+
+#define I2C_AUDIO_ADDRESS 0x10
+
+/*
+ * Initialise the PP I2C and I2S.
+ */
+void audiohw_init(void)
+{
+    unsigned long tmp;
+
+    logf("audiohw_init");
+
+    /* I2S device enable */
+    DEV_EN |= (DEV_I2S | DEV_EXTCLOCKS);
+
+    /* I2S device reset */
+    DEV_RS |=  DEV_I2S;
+    asm volatile ("nop\n");
+    DEV_RS &= ~DEV_I2S;
+
+    DEV_INIT1 &= ~0x3000000;
+
+    tmp = DEV_INIT1;
+    DEV_INIT1 = tmp;
+
+    DEV_INIT2 &= ~0x100;
+
+    /* reset the I2S controller into known state */
+    i2s_reset();
+
+    /* this gpio pin maybe powers the codec chip */
+    GPIOB_ENABLE     |=  0x01;
+    GPIOB_OUTPUT_EN  |=  0x01;
+    GPIOB_OUTPUT_VAL |=  0x01;
+
+    GPIOL_ENABLE     |=  0x20;
+    GPIOL_OUTPUT_VAL &= ~0x20;
+    GPIOL_OUTPUT_EN  |=  0x20;
+
+    GPO32_VAL        |=  0x00000020;
+    GPO32_ENABLE     |=  0x00000020;
+
+    GPIOF_ENABLE     |=  0x80;
+    GPIOF_OUTPUT_VAL |=  0x80;
+    GPIOF_OUTPUT_EN  |=  0x80;
+
+    audiohw_preinit();
+
+    GPIOL_ENABLE     |=  0x20;
+    GPIOL_OUTPUT_VAL |=  0x20;
+    GPIOL_OUTPUT_EN  |=  0x20;
+}
+
+void akcodec_close(void)
+{
+    GPIOF_ENABLE     |=  0x80;
+    GPIOF_OUTPUT_VAL &= ~0x80;
+    GPIOF_OUTPUT_EN  |=  0x80;
+
+    GPIOB_ENABLE     |=  0x01;
+    GPIOB_OUTPUT_EN  |=  0x01;
+    GPIOB_OUTPUT_VAL |=  0x01;
+}
+
+void akcodec_write(int reg, int data)
+{
+    pp_i2c_send(I2C_AUDIO_ADDRESS, reg, data);
+}
+
+int akcodec_read(int reg)
+{
+    return i2c_readbyte(I2C_AUDIO_ADDRESS, reg);
+}