16ada4cb81
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23078 a1c6a512-1295-4272-9138-f99709370657
132 lines
5.3 KiB
C
132 lines
5.3 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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* Copyright (C) 2009 by Rob Purchase
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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 "pcf50635.h"
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#include "i2c.h"
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#include "system.h"
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#define PCF50635_ADDR 0xe6
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int pcf50635_write(int address, unsigned char val)
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{
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unsigned char data[] = { address, val };
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return i2c_write(PCF50635_ADDR, data, 2);
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}
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int pcf50635_write_multiple(int address, const 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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pcf50635_write(address + i, buf[i]);
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return 0;
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}
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int pcf50635_read(int address)
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{
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unsigned char val = -1;
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i2c_readmem(PCF50635_ADDR, address, &val, 1);
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return val;
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}
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int pcf50635_read_multiple(int address, unsigned char* buf, int count)
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{
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return i2c_readmem(PCF50635_ADDR, address, buf, count);
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}
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void pcf50635_init(void)
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{
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#ifdef COWON_D2
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/* Configure outputs as per OF */
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pcf50635_write(PCF5063X_REG_DOWN1OUT, 0x13); /* DOWN1 = 1.2V */
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pcf50635_write(PCF5063X_REG_DOWN1CTL, 0x1e); /* DOWN1 DVM step = max */
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pcf50635_write(PCF5063X_REG_DOWN1ENA, 0x1); /* DOWN1 enable */
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pcf50635_write(PCF5063X_REG_DOWN2OUT, 0x2f); /* DOWN2 = 1.8V */
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pcf50635_write(PCF5063X_REG_DOWN2CTL, 0x1e); /* DOWN2 DVM step = max */
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pcf50635_write(PCF5063X_REG_DOWN2ENA, 0x1); /* DOWN2 enable */
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pcf50635_write(PCF5063X_REG_AUTOOUT, 0x5f); /* AUTO = 3.0V */
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pcf50635_write(PCF5063X_REG_AUTOENA, 0x1); /* AUTO enable */
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pcf50635_write(PCF5063X_REG_LDO1OUT, 0x18); /* LDO1 = 3.3V */
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pcf50635_write(PCF5063X_REG_LDO1ENA, 0x1); /* LDO1 enable */
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pcf50635_write(PCF5063X_REG_LDO2OUT, 0x15); /* LDO2 = 3.0V */
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pcf50635_write(PCF5063X_REG_LDO2ENA, 0x1); /* LDO2 enable */
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pcf50635_write(PCF5063X_REG_LDO3ENA, 0x0); /* LDO3 disable */
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pcf50635_write(PCF5063X_REG_LDO4OUT, 0x15); /* LDO4 = 3.0V */
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pcf50635_write(PCF5063X_REG_LDO4ENA, 0x1); /* LDO4 enable */
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pcf50635_write(PCF5063X_REG_LDO5OUT, 0x9); /* LDO5 = 1.8V */
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pcf50635_write(PCF5063X_REG_LDO5ENA, 0x1); /* LDO4 enable */
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pcf50635_write(PCF5063X_REG_LDO6OUT, 0xc); /* LDO6 = 2.1V */
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pcf50635_write(PCF5063X_REG_LDO6ENA, 0x1); /* LDO4 enable */
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pcf50635_write(PCF5063X_REG_HCLDOENA, 0x0); /* HCLDO disable */
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/* Configure automatic battery charging as per OF */
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pcf50635_write(PCF5063X_REG_MBCC1,
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pcf50635_read(PCF5063X_REG_MBCC1) | 7); /* auto charge termination & resume */
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pcf50635_write(PCF5063X_REG_MBCC2, 0xa8); /* Vmax = 4.2V, Vbatcond = 2.7V, long debounce */
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pcf50635_write(PCF5063X_REG_MBCC3, 0x2a); /* precharge level = 16% */
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pcf50635_write(PCF5063X_REG_MBCC4, 0x94); /* fastcharge level = 58% */
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pcf50635_write(PCF5063X_REG_MBCC5, 0xff); /* fastcharge level (usb) = 100% */
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pcf50635_write(PCF5063X_REG_MBCC6, 0x4); /* cutoff level = 12.5% */
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pcf50635_write(PCF5063X_REG_MBCC7, 0xc1); /* bat-sysimax = 2.2A, USB = 500mA */
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pcf50635_write(PCF5063X_REG_BVMCTL, 0xe); /* batok level = 3.4V */
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/* IRQ masks */
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pcf50635_write(PCF5063X_REG_INT1M, 0x8a); /* enable alarm, usbins, adpins */
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pcf50635_write(PCF5063X_REG_INT2M, 0xff); /* mask all */
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pcf50635_write(PCF5063X_REG_INT3M, 0x7f); /* enable onkey1s */
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pcf50635_write(PCF5063X_REG_INT4M, 0xfd); /* enable lowbat */
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pcf50635_write(PCF5063X_REG_INT5M, 0xff); /* mask all */
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pcf50635_write(PCF5063X_REG_OOCMODE, 0x0);
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pcf50635_write(PCF5063X_REG_OOCCTL, 0x2); /* actphrst = phase 3 */
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pcf50635_write(PCF5063X_REG_OOCWAKE, /* adapter, usb, (rtc) wake */
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(pcf50635_read(PCF5063X_REG_OOCWAKE) & 0x10) | 0xc1);
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/* We don't care about the GPIOs, disable them */
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pcf50635_write(PCF5063X_REG_GPIOCTL, 0x0);
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pcf50635_write(PCF5063X_REG_GPIO1CFG, 0x0);
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pcf50635_write(PCF5063X_REG_GPIO2CFG, 0x0);
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pcf50635_write(PCF5063X_REG_GPIO3CFG, 0x0);
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#endif
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}
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void pcf50635_read_adc(int adc, short* res1, short* res2)
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{
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int adcs1 = 0, adcs2 = 0, adcs3 = 0;
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int level = disable_irq_save();
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pcf50635_write(PCF5063X_REG_ADCC1, PCF5063X_ADCC1_ADCSTART | adc);
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do {
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adcs3 = pcf50635_read(PCF5063X_REG_ADCS3);
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} while (!(adcs3 & PCF5063X_ADCS3_ADCRDY));
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if (res1 != NULL) adcs1 = pcf50635_read(PCF5063X_REG_ADCS1);
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if (res2 != NULL) adcs2 = pcf50635_read(PCF5063X_REG_ADCS2);
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pcf50635_write(PCF5063X_REG_ADCC1, 0);
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restore_interrupt(level);
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if (res1 != NULL) *res1 = (adcs1 << 2) | (adcs3 & 3);
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if (res2 != NULL) *res2 = (adcs2 << 2) | ((adcs3 & 0xC) >> 2);
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}
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