From 758bb3bc628705ff8e5c677b3b2d87720c726c13 Mon Sep 17 00:00:00 2001 From: Mark Arigo Date: Mon, 25 May 2009 21:10:45 +0000 Subject: 3 new ports: Samsung YH-820, YH-920, and YH-925. Mostly functional. Audio working on 820 & 925 (untested on the 920). No battery readings. No recording. No plugins. Keymap needs work. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21083 a1c6a512-1295-4272-9138-f99709370657 --- firmware/target/arm/samsung/akcodec-yh82x_yh92x.c | 102 ++++++++++++++++++++++ 1 file changed, 102 insertions(+) create mode 100644 firmware/target/arm/samsung/akcodec-yh82x_yh92x.c (limited to 'firmware/target/arm/samsung/akcodec-yh82x_yh92x.c') 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); +} -- cgit v1.2.3