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Diffstat (limited to 'firmware/target/arm/rk27xx/ihifi2/audio-ihifi770.c')
-rw-r--r--firmware/target/arm/rk27xx/ihifi2/audio-ihifi770.c88
1 files changed, 88 insertions, 0 deletions
diff --git a/firmware/target/arm/rk27xx/ihifi2/audio-ihifi770.c b/firmware/target/arm/rk27xx/ihifi2/audio-ihifi770.c
new file mode 100644
index 0000000000..a21ea9cfef
--- /dev/null
+++ b/firmware/target/arm/rk27xx/ihifi2/audio-ihifi770.c
@@ -0,0 +1,88 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ *
+ * Copyright (C) 2016 by Roman Stolyarov
+ *
+ * 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 "audiohw.h"
+
+void wm8740_hw_init(void)
+{
+ GPIO_PADR &= ~(1<<0); /* MD */
+ GPIO_PACON |= (1<<0);
+
+ GPIO_PADR &= ~(1<<1); /* MC */
+ GPIO_PACON |= (1<<1);
+
+ SCU_IOMUXB_CON &= ~(1<<2);
+ GPIO_PCDR |= (1<<4); /* ML */
+ GPIO_PCCON |= (1<<4);
+}
+
+void wm8740_set_md(const int val)
+{
+ if (val)
+ GPIO_PADR |= (1<<0);
+ else
+ GPIO_PADR &= ~(1<<0);
+}
+
+void wm8740_set_mc(const int val)
+{
+ if (val)
+ GPIO_PADR |= (1<<1);
+ else
+ GPIO_PADR &= ~(1<<1);
+}
+
+void wm8740_set_ml(const int val)
+{
+ if (val)
+ GPIO_PCDR |= (1<<4);
+ else
+ GPIO_PCDR &= ~(1<<4);
+}
+
+static void pop_ctrl(const int val)
+{
+ if (val)
+ GPIO_PADR |= (1<<7);
+ else
+ GPIO_PADR &= ~(1<<7);
+}
+
+void audiohw_postinit(void)
+{
+ pop_ctrl(0);
+ sleep(HZ/4);
+ wm8740_hw_init();
+ audiohw_init();
+ sleep(HZ/2);
+ pop_ctrl(1);
+ sleep(HZ/4);
+ audiohw_unmute();
+}
+
+void audiohw_close(void)
+{
+ audiohw_mute();
+ pop_ctrl(0);
+ sleep(HZ/4);
+}