63c0d1dd9c
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8911 a1c6a512-1295-4272-9138-f99709370657
121 lines
3.1 KiB
C
121 lines
3.1 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Driver for pcf50605 PMU and RTC
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*
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* Based on code from the ipodlinux project - http://ipodlinux.org/
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* Adapted for Rockbox in December 2005
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*
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* Original file: linux/arch/armnommu/mach-ipod/pcf50605.c
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*
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* Copyright (c) 2003-2005 Bernard Leach (leachbj@bouncycastle.org)
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#if CONFIG_I2C == I2C_PP5020
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#include "i2c-pp5020.h"
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#elif CONFIG_I2C == I2C_PP5002
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#include "i2c-pp5002.h"
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#endif
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#include "rtc.h"
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#define OOCS 0x01
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#define INT1 0x02
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#define INT2 0x03
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#define INT3 0x04
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#define INT1M 0x05
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#define INT2M 0x06
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#define INT3M 0x07
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#define OOCC1 0x08
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#define GOSTDBY 0x1
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#define TOTRST (0x1 << 1)
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#define CLK32ON (0x1 << 2)
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#define WDTRST (0x1 << 3)
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#define RTCWAK (0x1 << 4)
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#define CHGWAK (0x1 << 5)
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#define EXTONWAK (0x01 << 6)
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#define OOCC2 0x09
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#define RTCSC 0x0a
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#define RTCMN 0x0b
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#define RTCHR 0x0c
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#define RTCWD 0x0d
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#define RTCDT 0x0e
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#define RTCMT 0x0f
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#define RTCYR 0x10
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#define RTCSCA 0x11
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#define RTCMNA 0x12
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#define RTCHRA 0x13
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#define RTCWDA 0x14
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#define RTCDTA 0x15
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#define RTCMTA 0x16
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#define RTCYRA 0x17
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#define PSSC 0x18
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#define PWROKM 0x19
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#define PWROKS 0x1a
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int pcf50605_read(int address)
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{
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return i2c_readbyte(0x8,address);
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}
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int pcf50605_read_multiple(int address, unsigned char* buf, int count)
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{
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int i;
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for (i=0;i<count;i++)
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{
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buf[i]=pcf50605_read(address);
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address++;
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}
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return 0;
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}
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int pcf50605_write(int address, unsigned char val)
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{
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ipod_i2c_send(0x8, address, val);
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return 0;
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}
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int pcf50605_write_multiple(int address, const unsigned char* buf, int count)
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{
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/* TODO */
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(void)address;
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(void)buf;
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(void)count;
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return 0;
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}
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unsigned short pcf50605_a2d_read(int adc_input)
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{
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unsigned short hi;
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unsigned char lo;
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ipod_i2c_send(0x8, 0x2f, (adc_input<<1) | 0x1); /* ADCC2, ADCMUX = adc_input, ADCSTART = 1 */
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hi = i2c_readbyte(0x8, 0x30); /* ADCS1 */
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lo = (i2c_readbyte(0x8, 0x31) & 0x3); /* ADCS2 */
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return (hi << 2) | lo;
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}
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/* The following command puts the iPod into a deep sleep. Warning
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from the good people of ipodlinux - never issue this command
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without setting CHGWAK or EXTONWAK if you ever want to be able to
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power on your iPod again. */
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void pcf50605_standby_mode(void)
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{
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pcf50605_write(OOCC1, GOSTDBY | CHGWAK | EXTONWAK);
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}
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