diff options
Diffstat (limited to 'arch/arm/mach-sa1100/collie_pm.c')
| -rw-r--r-- | arch/arm/mach-sa1100/collie_pm.c | 296 |
1 files changed, 0 insertions, 296 deletions
diff --git a/arch/arm/mach-sa1100/collie_pm.c b/arch/arm/mach-sa1100/collie_pm.c deleted file mode 100644 index 444f266ecc06..000000000000 --- a/arch/arm/mach-sa1100/collie_pm.c +++ /dev/null @@ -1,296 +0,0 @@ -/* - * Based on spitz_pm.c and sharp code. - * - * Copyright (C) 2001 SHARP - * Copyright 2005 Pavel Machek <pavel@suse.cz> - * - * Distribute under GPLv2. - * - * Li-ion batteries are angry beasts, and they like to explode. This driver is not finished, - * and sometimes charges them when it should not. If it makes angry lithium to come your way... - * ...well, you have been warned. - * - * Actually, this should be quite safe, it seems sharp leaves charger enabled by default, - * and my collie did not explode (yet). - */ - -#include <linux/module.h> -#include <linux/stat.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/interrupt.h> -#include <linux/device.h> -#include <linux/platform_device.h> -#include <linux/gpio.h> - -#include <asm/irq.h> -#include <mach/hardware.h> -#include <asm/hardware/scoop.h> -#include <mach/dma.h> -#include <mach/collie.h> -#include <asm/mach/sharpsl_param.h> -#include <asm/hardware/sharpsl_pm.h> - -#include "../drivers/mfd/ucb1x00.h" - -static struct ucb1x00 *ucb; -static int ad_revise; - -#define ADCtoPower(x) ((330 * x * 2) / 1024) - -static void collie_charger_init(void) -{ - int err; - - if (sharpsl_param.adadj != -1) - ad_revise = sharpsl_param.adadj; - - /* Register interrupt handler. */ - if ((err = request_irq(COLLIE_IRQ_GPIO_AC_IN, sharpsl_ac_isr, IRQF_DISABLED, - "ACIN", sharpsl_ac_isr))) { - printk("Could not get irq %d.\n", COLLIE_IRQ_GPIO_AC_IN); - return; - } - if ((err = request_irq(COLLIE_IRQ_GPIO_CO, sharpsl_chrg_full_isr, IRQF_DISABLED, - "CO", sharpsl_chrg_full_isr))) { - free_irq(COLLIE_IRQ_GPIO_AC_IN, sharpsl_ac_isr); - printk("Could not get irq %d.\n", COLLIE_IRQ_GPIO_CO); - return; - } - - gpio_request(COLLIE_GPIO_CHARGE_ON, "charge on"); - gpio_direction_output(COLLIE_GPIO_CHARGE_ON, 1); - - ucb1x00_io_set_dir(ucb, 0, COLLIE_TC35143_GPIO_MBAT_ON | COLLIE_TC35143_GPIO_TMP_ON | - COLLIE_TC35143_GPIO_BBAT_ON); - return; -} - -static void collie_measure_temp(int on) -{ - if (on) - ucb1x00_io_write(ucb, COLLIE_TC35143_GPIO_TMP_ON, 0); - else - ucb1x00_io_write(ucb, 0, COLLIE_TC35143_GPIO_TMP_ON); -} - -static void collie_charge(int on) -{ - /* Zaurus seems to contain LTC1731; it should know when to - * stop charging itself, so setting charge on should be - * relatively harmless (as long as it is not done too often). - */ - gpio_set_value(COLLIE_GPIO_CHARGE_ON, on); -} - -static void collie_discharge(int on) -{ -} - -static void collie_discharge1(int on) -{ -} - -static void collie_presuspend(void) -{ -} - -static void collie_postsuspend(void) -{ -} - -static int collie_should_wakeup(unsigned int resume_on_alarm) -{ - return 0; -} - -static unsigned long collie_charger_wakeup(void) -{ - return 0; -} - -int collie_read_backup_battery(void) -{ - int voltage; - - ucb1x00_adc_enable(ucb); - - ucb1x00_io_write(ucb, COLLIE_TC35143_GPIO_BBAT_ON, 0); - voltage = ucb1x00_adc_read(ucb, UCB_ADC_INP_AD1, UCB_SYNC); - - ucb1x00_io_write(ucb, 0, COLLIE_TC35143_GPIO_BBAT_ON); - ucb1x00_adc_disable(ucb); - - printk("Backup battery = %d(%d)\n", ADCtoPower(voltage), voltage); - - return ADCtoPower(voltage); -} - -int collie_read_main_battery(void) -{ - int voltage, voltage_rev, voltage_volts; - - ucb1x00_adc_enable(ucb); - ucb1x00_io_write(ucb, 0, COLLIE_TC35143_GPIO_BBAT_ON); - ucb1x00_io_write(ucb, COLLIE_TC35143_GPIO_MBAT_ON, 0); - - mdelay(1); - voltage = ucb1x00_adc_read(ucb, UCB_ADC_INP_AD1, UCB_SYNC); - - ucb1x00_io_write(ucb, 0, COLLIE_TC35143_GPIO_MBAT_ON); - ucb1x00_adc_disable(ucb); - - voltage_rev = voltage + ((ad_revise * voltage) / 652); - voltage_volts = ADCtoPower(voltage_rev); - - printk("Main battery = %d(%d)\n", voltage_volts, voltage); - - if (voltage != -1) - return voltage_volts; - else - return voltage; -} - -int collie_read_temp(void) -{ - int voltage; - - /* According to Sharp, temp must be > 973, main battery must be < 465, - FIXME: sharpsl_pm.c has both conditions negated? FIXME: values - are way out of range? */ - - ucb1x00_adc_enable(ucb); - ucb1x00_io_write(ucb, COLLIE_TC35143_GPIO_TMP_ON, 0); - /* >1010 = battery removed, 460 = 22C ?, higher = lower temp ? */ - voltage = ucb1x00_adc_read(ucb, UCB_ADC_INP_AD0, UCB_SYNC); - ucb1x00_io_write(ucb, 0, COLLIE_TC35143_GPIO_TMP_ON); - ucb1x00_adc_disable(ucb); - - printk("Battery temp = %d\n", voltage); - return voltage; -} - -static unsigned long read_devdata(int which) -{ - switch (which) { - case SHARPSL_BATT_VOLT: - return collie_read_main_battery(); - case SHARPSL_BATT_TEMP: - return collie_read_temp(); - case SHARPSL_ACIN_VOLT: - return 500; - case SHARPSL_STATUS_ACIN: { - int ret = GPLR & COLLIE_GPIO_AC_IN; - printk("AC status = %d\n", ret); - return ret; - } - case SHARPSL_STATUS_FATAL: { - int ret = GPLR & COLLIE_GPIO_MAIN_BAT_LOW; - printk("Fatal bat = %d\n", ret); - return ret; - } - default: - return ~0; - } -} - -struct battery_thresh collie_battery_levels_acin[] = { - { 420, 100}, - { 417, 95}, - { 415, 90}, - { 413, 80}, - { 411, 75}, - { 408, 70}, - { 406, 60}, - { 403, 50}, - { 398, 40}, - { 391, 25}, - { 10, 5}, - { 0, 0}, -}; - -struct battery_thresh collie_battery_levels[] = { - { 394, 100}, - { 390, 95}, - { 380, 90}, - { 370, 80}, - { 368, 75}, /* From sharp code: battery high with frontlight */ - { 366, 70}, /* 60..90 -- fake values invented by me for testing */ - { 364, 60}, - { 362, 50}, - { 360, 40}, - { 358, 25}, /* From sharp code: battery low with frontlight */ - { 356, 5}, /* From sharp code: battery verylow with frontlight */ - { 0, 0}, -}; - -struct sharpsl_charger_machinfo collie_pm_machinfo = { - .init = collie_charger_init, - .read_devdata = read_devdata, - .discharge = collie_discharge, - .discharge1 = collie_discharge1, - .charge = collie_charge, - .measure_temp = collie_measure_temp, - .presuspend = collie_presuspend, - .postsuspend = collie_postsuspend, - .charger_wakeup = collie_charger_wakeup, - .should_wakeup = collie_should_wakeup, - .bat_levels = 12, - .bat_levels_noac = collie_battery_levels, - .bat_levels_acin = collie_battery_levels_acin, - .status_high_acin = 368, - .status_low_acin = 358, - .status_high_noac = 368, - .status_low_noac = 358, - .charge_on_volt = 350, /* spitz uses 2.90V, but lets play it safe. */ - .charge_on_temp = 550, - .charge_acin_high = 550, /* collie does not seem to have sensor for this, anyway */ - .charge_acin_low = 450, /* ignored, too */ - .fatal_acin_volt = 356, - .fatal_noacin_volt = 356, - - .batfull_irq = 1, /* We do not want periodical charge restarts */ -}; - -static int __init collie_pm_ucb_add(struct ucb1x00_dev *pdev) -{ - sharpsl_pm.machinfo = &collie_pm_machinfo; - ucb = pdev->ucb; - return 0; -} - -static struct ucb1x00_driver collie_pm_ucb_driver = { - .add = collie_pm_ucb_add, -}; - -static struct platform_device *collie_pm_device; - -static int __init collie_pm_init(void) -{ - int ret; - - collie_pm_device = platform_device_alloc("sharpsl-pm", -1); - if (!collie_pm_device) - return -ENOMEM; - - collie_pm_device->dev.platform_data = &collie_pm_machinfo; - ret = platform_device_add(collie_pm_device); - - if (ret) - platform_device_put(collie_pm_device); - - if (!ret) - ret = ucb1x00_register_driver(&collie_pm_ucb_driver); - - return ret; -} - -static void __exit collie_pm_exit(void) -{ - ucb1x00_unregister_driver(&collie_pm_ucb_driver); - platform_device_unregister(collie_pm_device); -} - -module_init(collie_pm_init); -module_exit(collie_pm_exit); |
