77c915ad61
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11361 a1c6a512-1295-4272-9138-f99709370657
156 lines
4.5 KiB
C
156 lines
4.5 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Portalplayer specific code for Wolfson audio codecs
|
|
*
|
|
* Based on code from the ipodlinux project - http://ipodlinux.org/
|
|
* Adapted for Rockbox in December 2005
|
|
*
|
|
* Original file: linux/arch/armnommu/mach-ipod/audio.c
|
|
*
|
|
* Copyright (c) 2003-2005 Bernard Leach (leachbj@bouncycastle.org)
|
|
*
|
|
* 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 "lcd.h"
|
|
#include "cpu.h"
|
|
#include "kernel.h"
|
|
#include "thread.h"
|
|
#include "power.h"
|
|
#include "debug.h"
|
|
#include "system.h"
|
|
#include "sprintf.h"
|
|
#include "button.h"
|
|
#include "string.h"
|
|
#include "file.h"
|
|
#include "buffer.h"
|
|
#include "audio.h"
|
|
|
|
#if CONFIG_CPU == PP5020
|
|
#include "i2c-pp5020.h"
|
|
#elif CONFIG_CPU == PP5002
|
|
#include "i2c-pp5002.h"
|
|
#endif
|
|
|
|
#if defined(IRIVER_H10) || defined(IRIVER_H10_5GB)
|
|
/* The H10's audio codec uses an I2C address of 0x1b */
|
|
#define I2C_AUDIO_ADDRESS 0x1b
|
|
#else
|
|
/* The iPod's audio codecs use an I2C address of 0x1a */
|
|
#define I2C_AUDIO_ADDRESS 0x1a
|
|
#endif
|
|
|
|
/*
|
|
* Reset the I2S BIT.FORMAT I2S, 16bit, FIFO.FORMAT 32bit
|
|
*/
|
|
void i2s_reset(void)
|
|
{
|
|
#if CONFIG_CPU == PP5020
|
|
/* I2S soft reset */
|
|
outl(inl(0x70002800) | 0x80000000, 0x70002800);
|
|
outl(inl(0x70002800) & ~0x80000000, 0x70002800);
|
|
|
|
/* BIT.FORMAT [11:10] = I2S (default) */
|
|
outl(inl(0x70002800) & ~0xc00, 0x70002800);
|
|
/* BIT.SIZE [9:8] = 16bit (default) */
|
|
outl(inl(0x70002800) & ~0x300, 0x70002800);
|
|
|
|
/* FIFO.FORMAT [6:4] = 32 bit LSB */
|
|
/* since BIT.SIZ < FIFO.FORMAT low 16 bits will be 0 */
|
|
outl(inl(0x70002800) | 0x30, 0x70002800);
|
|
|
|
/* RX_ATN_LVL=1 == when 12 slots full */
|
|
/* TX_ATN_LVL=1 == when 12 slots empty */
|
|
outl(inl(0x7000280c) | 0x33, 0x7000280c);
|
|
|
|
/* Rx.CLR = 1, TX.CLR = 1 */
|
|
outl(inl(0x7000280c) | 0x1100, 0x7000280c);
|
|
#elif CONFIG_CPU == PP5002
|
|
/* I2S device reset */
|
|
outl(inl(0xcf005030) | 0x80, 0xcf005030);
|
|
outl(inl(0xcf005030) & ~0x80, 0xcf005030);
|
|
|
|
/* I2S controller enable */
|
|
outl(inl(0xc0002500) | 0x1, 0xc0002500);
|
|
|
|
/* BIT.FORMAT [11:10] = I2S (default) */
|
|
/* BIT.SIZE [9:8] = 24bit */
|
|
/* FIFO.FORMAT = 24 bit LSB */
|
|
|
|
/* reset DAC and ADC fifo */
|
|
outl(inl(0xc000251c) | 0x30000, 0xc000251c);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Initialise the WM8975 for playback via headphone and line out.
|
|
* Note, I'm using the WM8750 datasheet as its apparently close.
|
|
*/
|
|
int wmcodec_init(void) {
|
|
/* reset I2C */
|
|
i2c_init();
|
|
|
|
#if CONFIG_CPU == PP5020
|
|
/* normal outputs for CDI and I2S pin groups */
|
|
outl(inl(0x70000020) & ~0x300, 0x70000020);
|
|
|
|
/*mini2?*/
|
|
outl(inl(0x70000010) & ~0x3000000, 0x70000010);
|
|
/*mini2?*/
|
|
|
|
/* device reset */
|
|
outl(inl(0x60006004) | 0x800, 0x60006004);
|
|
outl(inl(0x60006004) & ~0x800, 0x60006004);
|
|
|
|
/* device enable */
|
|
outl(inl(0x6000600C) | 0x807, 0x6000600C);
|
|
|
|
/* enable external dev clock clocks */
|
|
outl(inl(0x6000600c) | 0x2, 0x6000600c);
|
|
|
|
/* external dev clock to 24MHz */
|
|
outl(inl(0x70000018) & ~0xc, 0x70000018);
|
|
#else
|
|
/* device reset */
|
|
outl(inl(0xcf005030) | 0x80, 0xcf005030);
|
|
outl(inl(0xcf005030) & ~0x80, 0xcf005030);
|
|
|
|
/* device enable */
|
|
outl(inl(0xcf005000) | 0x80, 0xcf005000);
|
|
|
|
/* GPIO D06 enable for output */
|
|
outl(inl(0xcf00000c) | 0x40, 0xcf00000c);
|
|
outl(inl(0xcf00001c) & ~0x40, 0xcf00001c);
|
|
/* bits 11,10 == 01 */
|
|
outl(inl(0xcf004040) | 0x400, 0xcf004040);
|
|
outl(inl(0xcf004040) & ~0x800, 0xcf004040);
|
|
|
|
outl(inl(0xcf004048) & ~0x1, 0xcf004048);
|
|
|
|
outl(inl(0xcf000004) & ~0xf, 0xcf000004);
|
|
outl(inl(0xcf004044) & ~0xf, 0xcf004044);
|
|
|
|
/* C03 = 0 */
|
|
outl(inl(0xcf000008) | 0x8, 0xcf000008);
|
|
outl(inl(0xcf000018) | 0x8, 0xcf000018);
|
|
outl(inl(0xcf000028) & ~0x8, 0xcf000028);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
void wmcodec_write(int reg, int data)
|
|
{
|
|
pp_i2c_send(I2C_AUDIO_ADDRESS, (reg<<1) | ((data&0x100)>>8),data&0xff);
|
|
}
|