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iaudio7: add battery voltage monitoring

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19549 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Vitja Makarov 2008-12-21 19:16:54 +00:00
parent f6789a7d73
commit 19413fc806
3 changed files with 89 additions and 5 deletions
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4
firmware/SOURCES
View file

@ -1129,14 +1129,14 @@ target/arm/as3525/powermgmt-as3525.c
#ifndef SIMULATOR
drivers/nand_id.c
drivers/pcf50606.c
target/arm/usb-tcc.c
target/arm/tcc77x/system-tcc77x.c
target/arm/tcc77x/kernel-tcc77x.c
target/arm/tcc77x/timer-tcc77x.c
target/arm/tcc77x/adc-tcc77x.c
target/arm/tcc77x/powermgmt-tcc77x.c
target/arm/usb-tcc.c
target/arm/tcc77x/iaudio7/lcd-iaudio7.c
target/arm/tcc77x/iaudio7/power-iaudio7.c
target/arm/tcc77x/iaudio7/powermgmt-iaudio7.c
target/arm/tcc77x/iaudio7/button-iaudio7.c
target/arm/tcc77x/iaudio7/ata2501.c
#ifndef BOOTLOADER

84
firmware/target/arm/tcc77x/iaudio7/powermgmt-iaudio7.c Normal file
View file

@ -0,0 +1,84 @@
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id: powermgmt-cowond2.c 17847 2008-06-28 18:10:04Z bagder $
*
* Copyright (C) 2007 by Karl Kurbjun
*
* 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 "config.h"
#include "adc.h"
#include "powermgmt.h"
#include "kernel.h"
#include "pcf50606.h"
unsigned short current_voltage = 5150;
const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
{
/* FIXME: calibrate value */
3380
};
const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
{
/* FIXME: calibrate value */
3300
};
/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
{
/* FIXME: calibrate values. Table is "inherited" from iPod-PCF / H100 */
{ 4500, 4810, 4910, 4970, 5030, 5070, 5120, 5140, 5170, 5250, 5400 }
};
#if CONFIG_CHARGING
/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
const unsigned short percent_to_volt_charge[11] =
{
/* FIXME: calibrate values. Table is "inherited" from iPod-PCF / H100 */
4760, 5440, 5510, 5560, 5610, 5640, 5660, 5760, 5820, 5840, 5850 /* NiMH */
};
#endif /* CONFIG_CHARGING */
#define BATTERY_SCALE_FACTOR 6000
/* full-scale ADC readout (2^10) in millivolt */
/* Returns battery voltage from ADC [millivolts] */
unsigned int battery_adc_voltage(void)
{
static unsigned last_tick = 0;
if (0 == last_tick || TIME_BEFORE(last_tick+HZ, current_tick))
{
int adc_val, irq_status;
unsigned char buf[2];
irq_status = disable_irq_save();
pcf50606_write(PCF5060X_ADCC2, 0x1);
pcf50606_read_multiple(PCF5060X_ADCS1, buf, 2);
restore_interrupt(irq_status);
adc_val = (buf[0]<<2) | (buf[1] & 3); //ADCDAT1H+ADCDAT1L
current_voltage = (adc_val * BATTERY_SCALE_FACTOR) >> 10;
last_tick = current_tick;
}
return current_voltage;
}

6
firmware/target/arm/tcc77x/system-tcc77x.c
View file

@ -99,12 +99,12 @@ static void gpio_init(void)
GPIOD_FUNC = 0;
GPIOE_FUNC = 0;
GPIOA = 0x30;
GPIOB = 0x80000;
GPIOB = 0x00c00;
GPIOC = 0;
GPIOD = 0x180;
GPIOE = 0;
GPIOE = 0x80;
GPIOA_DIR = 0x84b0;
GPIOB_DIR = 0x80800;
GPIOB_DIR = 0x80c00;
GPIOC_DIR = 0x2000000;
GPIOD_DIR = 0x3e3;
GPIOE_DIR = 0x88;