7cfd418a9b
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23120 a1c6a512-1295-4272-9138-f99709370657
160 lines
5.1 KiB
C
160 lines
5.1 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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* 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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static const char init_data[] =
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{
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/* DOWN1: 1.2V, max DVM step, enabled */
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PCF5063X_REG_DOWN1OUT, 0x13,
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PCF5063X_REG_DOWN1CTL, 0x1e,
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PCF5063X_REG_DOWN1ENA, 0x1,
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/* DOWN2: 1.8V, max DVM step, enabled */
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PCF5063X_REG_DOWN2OUT, 0x2f,
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PCF5063X_REG_DOWN2CTL, 0x1e,
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PCF5063X_REG_DOWN2ENA, 0x1,
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/* AUTO: 3.0V, enabled */
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PCF5063X_REG_AUTOOUT, 0x5f,
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PCF5063X_REG_AUTOENA, 0x1,
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/* LDO1: 3.3V, enabled */
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PCF5063X_REG_LDO1OUT, 0x18,
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PCF5063X_REG_LDO1ENA, 0x1,
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/* LDO2: 3.0V, enabled */
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PCF5063X_REG_LDO2OUT, 0x15,
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PCF5063X_REG_LDO2ENA, 0x1,
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/* LDO4: 3.0V, enabled */
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PCF5063X_REG_LDO4OUT, 0x15,
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PCF5063X_REG_LDO4ENA, 0x1,
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/* LDO5: 1.8V, enabled */
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PCF5063X_REG_LDO5OUT, 0x9,
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PCF5063X_REG_LDO5ENA, 0x1,
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/* LDO6: 2.1V, enabled */
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PCF5063X_REG_LDO6OUT, 0xc,
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PCF5063X_REG_LDO6ENA, 0x1,
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/* LDO3 and HCLDO disabled */
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PCF5063X_REG_LDO3ENA, 0x0,
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PCF5063X_REG_HCLDOENA, 0x0,
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/* Disable GPIOs */
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PCF5063X_REG_GPIOCTL, 0x0,
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PCF5063X_REG_GPIO1CFG, 0x0,
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PCF5063X_REG_GPIO2CFG, 0x0,
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PCF5063X_REG_GPIO3CFG, 0x0,
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/* IRQ masks (OF values in brackets) */
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PCF5063X_REG_INT1M, 0xff, /* (0x8a enable alarm, usbins, adpins) */
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PCF5063X_REG_INT2M, 0xff, /* (0xff all masked) */
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PCF5063X_REG_INT3M, 0xff, /* (0x7f enable onkey1s) */
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PCF5063X_REG_INT4M, 0xff, /* (0xfd enable lowbat) */
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PCF5063X_REG_INT5M, 0xff, /* (0xff all masked) */
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/* Wakeup mode */
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PCF5063X_REG_OOCMODE, 0x0, /* onkey falling edge */
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PCF5063X_REG_OOCCTL, 0x2, /* actphrst = phase 3 */
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PCF5063X_REG_OOCWAKE, 0xc1, /* wakeup on adapter, usb, onkey */
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/* Configure battery charger as per OF */
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PCF5063X_REG_MBCC2, 0xa8, /* Vmax = 4.2V, Vbatcond = 2.7V, long debounce */
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PCF5063X_REG_MBCC3, 0x2a, /* precharge level = 16% */
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PCF5063X_REG_MBCC4, 0x94, /* fastcharge level = 58% */
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PCF5063X_REG_MBCC5, 0xff, /* fastcharge level (usb) = 100% */
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PCF5063X_REG_MBCC6, 0x4, /* cutoff level = 12.5% */
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PCF5063X_REG_MBCC7, 0xc1, /* bat-sysImax = 2.2A, USB = 500mA */
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PCF5063X_REG_BVMCTL, 0xe, /* batok level = 3.4V */
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/* end marker */
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0};
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const char* ptr;
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for (ptr = init_data; *ptr != 0; ptr += 2)
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pcf50635_write(ptr[0], ptr[1]);
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/* Enable automatic charging, preserving default values */
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pcf50635_write(PCF5063X_REG_MBCC1,
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pcf50635_read(PCF5063X_REG_MBCC1) | 7);
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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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