diff options
| -rw-r--r-- | arch/arm/common/Kconfig | 3 | ||||
| -rw-r--r-- | arch/arm/common/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/common/sharpsl_pm.c | 839 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/corgi_pm.c | 45 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/sharpsl.h | 100 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/sharpsl_pm.c | 825 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/spitz_pm.c | 47 | ||||
| -rw-r--r-- | drivers/video/backlight/corgi_bl.c | 1 | ||||
| -rw-r--r-- | include/asm-arm/hardware/sharpsl_pm.h | 94 |
10 files changed, 1016 insertions, 941 deletions
diff --git a/arch/arm/common/Kconfig b/arch/arm/common/Kconfig index 666ba393575..d7509c7a3c5 100644 --- a/arch/arm/common/Kconfig +++ b/arch/arm/common/Kconfig @@ -23,5 +23,8 @@ config SHARP_LOCOMO config SHARP_PARAM bool +config SHARPSL_PM + bool + config SHARP_SCOOP bool diff --git a/arch/arm/common/Makefile b/arch/arm/common/Makefile index a87886564b1..2685051b301 100644 --- a/arch/arm/common/Makefile +++ b/arch/arm/common/Makefile @@ -13,4 +13,5 @@ obj-$(CONFIG_DMABOUNCE) += dmabounce.o obj-$(CONFIG_TIMER_ACORN) += time-acorn.o obj-$(CONFIG_SHARP_LOCOMO) += locomo.o obj-$(CONFIG_SHARP_PARAM) += sharpsl_param.o +obj-$(CONFIG_SHARPSL_PM) += sharpsl_pm.o obj-$(CONFIG_SHARP_SCOOP) += scoop.o diff --git a/arch/arm/common/sharpsl_pm.c b/arch/arm/common/sharpsl_pm.c new file mode 100644 index 00000000000..978d32e82d3 --- /dev/null +++ b/arch/arm/common/sharpsl_pm.c @@ -0,0 +1,839 @@ +/* + * Battery and Power Management code for the Sharp SL-C7xx and SL-Cxx00 + * series of PDAs + * + * Copyright (c) 2004-2005 Richard Purdie + * + * Based on code written by Sharp for 2.4 kernels + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#undef DEBUG + +#include <linux/module.h> +#include <linux/timer.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/apm_bios.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> + +#include <asm/hardware.h> +#include <asm/mach-types.h> +#include <asm/irq.h> +#include <asm/apm.h> +#include <asm/arch/pm.h> +#include <asm/arch/pxa-regs.h> +#include <asm/arch/sharpsl.h> +#include <asm/hardware/sharpsl_pm.h> + +/* + * Constants + */ +#define SHARPSL_CHARGE_ON_TIME_INTERVAL (msecs_to_jiffies(1*60*1000)) /* 1 min */ +#define SHARPSL_CHARGE_FINISH_TIME (msecs_to_jiffies(10*60*1000)) /* 10 min */ +#define SHARPSL_BATCHK_TIME (msecs_to_jiffies(15*1000)) /* 15 sec */ +#define SHARPSL_BATCHK_TIME_SUSPEND (60*10) /* 10 min */ +#define SHARPSL_WAIT_CO_TIME 15 /* 15 sec */ +#define SHARPSL_WAIT_DISCHARGE_ON 100 /* 100 msec */ +#define SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP 10 /* 10 msec */ +#define SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT 10 /* 10 msec */ +#define SHARPSL_CHECK_BATTERY_WAIT_TIME_ACIN 10 /* 10 msec */ +#define SHARPSL_CHARGE_WAIT_TIME 15 /* 15 msec */ +#define SHARPSL_CHARGE_CO_CHECK_TIME 5 /* 5 msec */ +#define SHARPSL_CHARGE_RETRY_CNT 1 /* eqv. 10 min */ + +#define SHARPSL_CHARGE_ON_VOLT 0x99 /* 2.9V */ +#define SHARPSL_CHARGE_ON_TEMP 0xe0 /* 2.9V */ +#define SHARPSL_CHARGE_ON_ACIN_HIGH 0x9b /* 6V */ +#define SHARPSL_CHARGE_ON_ACIN_LOW 0x34 /* 2V */ +#define SHARPSL_FATAL_ACIN_VOLT 182 /* 3.45V */ +#define SHARPSL_FATAL_NOACIN_VOLT 170 /* 3.40V */ + +/* + * Prototypes + */ +static int sharpsl_off_charge_battery(void); +static int sharpsl_check_battery_temp(void); +static int sharpsl_check_battery_voltage(void); +static int sharpsl_ac_check(void); +static int sharpsl_fatal_check(void); +static int sharpsl_average_value(int ad); +static void sharpsl_average_clear(void); +static void sharpsl_charge_toggle(void *private_); +static void sharpsl_battery_thread(void *private_); + + +/* + * Variables + */ +struct sharpsl_pm_status sharpsl_pm; +DECLARE_WORK(toggle_charger, sharpsl_charge_toggle, NULL); +DECLARE_WORK(sharpsl_bat, sharpsl_battery_thread, NULL); + + +static int get_percentage(int voltage) +{ + int i = sharpsl_pm.machinfo->bat_levels - 1; + struct battery_thresh *thresh; + + if (sharpsl_pm.charge_mode == CHRG_ON) + thresh=sharpsl_pm.machinfo->bat_levels_acin; + else + thresh=sharpsl_pm.machinfo->bat_levels_noac; + + while (i > 0 && (voltage > thresh[i].voltage)) + i--; + + return thresh[i].percentage; +} + +static int get_apm_status(int voltage) +{ + int low_thresh, high_thresh; + + if (sharpsl_pm.charge_mode == CHRG_ON) { + high_thresh = sharpsl_pm.machinfo->status_high_acin; + low_thresh = sharpsl_pm.machinfo->status_low_acin; + } else { + high_thresh = sharpsl_pm.machinfo->status_high_noac; + low_thresh = sharpsl_pm.machinfo->status_low_noac; + } + + if (voltage >= high_thresh) + return APM_BATTERY_STATUS_HIGH; + if (voltage >= low_thresh) + return APM_BATTERY_STATUS_LOW; + return APM_BATTERY_STATUS_CRITICAL; +} + +void sharpsl_battery_kick(void) +{ + schedule_delayed_work(&sharpsl_bat, msecs_to_jiffies(125)); +} +EXPORT_SYMBOL(sharpsl_battery_kick); + + +static void sharpsl_battery_thread(void *private_) +{ + int voltage, percent, apm_status, i = 0; + + if (!sharpsl_pm.machinfo) + return; + + sharpsl_pm.battstat.ac_status = (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN) ? APM_AC_ONLINE : APM_AC_OFFLINE); + + /* Corgi cannot confirm when battery fully charged so periodically kick! */ + if (machine_is_corgi() && (sharpsl_pm.charge_mode == CHRG_ON) + && time_after(jiffies, sharpsl_pm.charge_start_time + SHARPSL_CHARGE_ON_TIME_INTERVAL)) + schedule_work(&toggle_charger); + + while(1) { + voltage = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_VOLT); + + if (voltage > 0) break; + if (i++ > 5) { + voltage = sharpsl_pm.machinfo->bat_levels_noac[0].voltage; + dev_warn(sharpsl_pm.dev, "Warning: Cannot read main battery!\n"); + break; + } + } + + voltage = sharpsl_average_value(voltage); + apm_status = get_apm_status(voltage); + percent = get_percentage(voltage); + + /* At low battery voltages, the voltage has a tendency to start + creeping back up so we try to avoid this here */ + if ((sharpsl_pm.battstat.ac_status == APM_AC_ONLINE) || (apm_status == APM_BATTERY_STATUS_HIGH) || percent <= sharpsl_pm.battstat.mainbat_percent) { + sharpsl_pm.battstat.mainbat_voltage = voltage; + sharpsl_pm.battstat.mainbat_status = apm_status; + sharpsl_pm.battstat.mainbat_percent = percent; + } + + dev_dbg(sharpsl_pm.dev, "Battery: voltage: %d, status: %d, percentage: %d, time: %d\n", voltage, + sharpsl_pm.battstat.mainbat_status, sharpsl_pm.battstat.mainbat_percent, jiffies); + + /* If battery is low. limit backlight intensity to save power. */ + if ((sharpsl_pm.battstat.ac_status != APM_AC_ONLINE) + && ((sharpsl_pm.battstat.mainbat_status == APM_BATTERY_STATUS_LOW) || + (sharpsl_pm.battstat.mainbat_status == APM_BATTERY_STATUS_CRITICAL))) { + if (!(sharpsl_pm.flags & SHARPSL_BL_LIMIT)) { + corgibl_limit_intensity(1); + sharpsl_pm.flags |= SHARPSL_BL_LIMIT; + } + } else if (sharpsl_pm.flags & SHARPSL_BL_LIMIT) { + corgibl_limit_intensity(0); + sharpsl_pm.flags &= ~SHARPSL_BL_LIMIT; + } + + /* Suspend if critical battery level */ + if ((sharpsl_pm.battstat.ac_status != APM_AC_ONLINE) + && (sharpsl_pm.battstat.mainbat_status == APM_BATTERY_STATUS_CRITICAL) + && !(sharpsl_pm.flags & SHARPSL_APM_QUEUED)) { + sharpsl_pm.flags |= SHARPSL_APM_QUEUED; + dev_err(sharpsl_pm.dev, "Fatal Off\n"); + apm_queue_event(APM_CRITICAL_SUSPEND); + } + + schedule_delayed_work(&sharpsl_bat, SHARPSL_BATCHK_TIME); +} + +void sharpsl_pm_led(int val) +{ + if (val == SHARPSL_LED_ERROR) { + dev_err(sharpsl_pm.dev, "Charging Error!\n"); + } else if (val == SHARPSL_LED_ON) { + dev_dbg(sharpsl_pm.dev, "Charge LED On\n"); + + } else { + dev_dbg(sharpsl_pm.dev, "Charge LED Off\n"); + + } +} + +static void sharpsl_charge_on(void) +{ + dev_dbg(sharpsl_pm.dev, "Turning Charger On\n"); + + sharpsl_pm.full_count = 0; + sharpsl_pm.charge_mode = CHRG_ON; + schedule_delayed_work(&toggle_charger, msecs_to_jiffies(250)); + schedule_delayed_work(&sharpsl_bat, msecs_to_jiffies(500)); +} + +static void sharpsl_charge_off(void) +{ + dev_dbg(sharpsl_pm.dev, "Turning Charger Off\n"); + + sharpsl_pm.machinfo->charge(0); + sharpsl_pm_led(SHARPSL_LED_OFF); + sharpsl_pm.charge_mode = CHRG_OFF; + + schedule_work(&sharpsl_bat); +} + +static void sharpsl_charge_error(void) +{ + sharpsl_pm_led(SHARPSL_LED_ERROR); + sharpsl_pm.machinfo->charge(0); + sharpsl_pm.charge_mode = CHRG_ERROR; +} + +static void sharpsl_charge_toggle(void *private_) +{ + dev_dbg(sharpsl_pm.dev, "Toogling Charger at time: %lx\n", jiffies); + + if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN)) { + sharpsl_charge_off(); + return; + } else if ((sharpsl_check_battery_temp() < 0) || (sharpsl_ac_check() < 0)) { + sharpsl_charge_error(); + return; + } + + sharpsl_pm_led(SHARPSL_LED_ON); + sharpsl_pm.machinfo->charge(0); + mdelay(SHARPSL_CHARGE_WAIT_TIME); + sharpsl_pm.machinfo->charge(1); + + sharpsl_pm.charge_start_time = jiffies; +} + +static void sharpsl_ac_timer(unsigned long data) +{ + int acin = sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN); + + dev_dbg(sharpsl_pm.dev, "AC Status: %d\n",acin); + + sharpsl_average_clear(); + if (acin && (sharpsl_pm.charge_mode != CHRG_ON)) + sharpsl_charge_on(); + else if (sharpsl_pm.charge_mode == CHRG_ON) + sharpsl_charge_off(); + + schedule_work(&sharpsl_bat); +} + + +irqreturn_t sharpsl_ac_isr(int irq, void *dev_id, struct pt_regs *fp) +{ + /* Delay the event slightly to debounce */ + /* Must be a smaller delay than the chrg_full_isr below */ + mod_timer(&sharpsl_pm.ac_timer, jiffies + msecs_to_jiffies(250)); + + return IRQ_HANDLED; +} + +static void sharpsl_chrg_full_timer(unsigned long data) +{ + dev_dbg(sharpsl_pm.dev, "Charge Full at time: %lx\n", jiffies); + + sharpsl_pm.full_count++; + + if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN)) { + dev_dbg(sharpsl_pm.dev, "Charge Full: AC removed - stop charging!\n"); + if (sharpsl_pm.charge_mode == CHRG_ON) + sharpsl_charge_off(); + } else if (sharpsl_pm.full_count < 2) { + dev_dbg(sharpsl_pm.dev, "Charge Full: Count too low\n"); + schedule_work(&toggle_charger); + } else if (time_after(jiffies, sharpsl_pm.charge_start_time + SHARPSL_CHARGE_FINISH_TIME)) { + dev_dbg(sharpsl_pm.dev, "Charge Full: Interrupt generated too slowly - retry.\n"); + schedule_work(&toggle_charger); + } else { + sharpsl_charge_off(); + sharpsl_pm.charge_mode = CHRG_DONE; + dev_dbg(sharpsl_pm.dev, "Charge Full: Charging Finished\n"); + } +} + +/* Charging Finished Interrupt (Not present on Corgi) */ +/* Can trigger at the same time as an AC staus change so + delay until after that has been processed */ +irqreturn_t sharpsl_chrg_full_isr(int irq, void *dev_id, struct pt_regs *fp) +{ + if (sharpsl_pm.flags & SHARPSL_SUSPENDED) + return IRQ_HANDLED; + + /* delay until after any ac interrupt */ + mod_timer(&sharpsl_pm.chrg_full_timer, jiffies + msecs_to_jiffies(500)); + + return IRQ_HANDLED; +} + +irqreturn_t sharpsl_fatal_isr(int irq, void *dev_id, struct pt_regs *fp) +{ + int is_fatal = 0; + + if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_LOCK)) { + dev_err(sharpsl_pm.dev, "Battery now Unlocked! Suspending.\n"); + is_fatal = 1; + } + + if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_FATAL)) { + dev_err(sharpsl_pm.dev, "Fatal Batt Error! Suspending.\n"); + is_fatal = 1; + } + + if (!(sharpsl_pm.flags & SHARPSL_APM_QUEUED) && is_fatal) { + sharpsl_pm.flags |= SHARPSL_APM_QUEUED; + apm_queue_event(APM_CRITICAL_SUSPEND); + } + + return IRQ_HANDLED; +} + +/* + * Maintain an average of the last 10 readings + */ +#define SHARPSL_CNV_VALUE_NUM 10 +static int sharpsl_ad_index; + +static void sharpsl_average_clear(void) +{ + sharpsl_ad_index = 0; +} + +static int sharpsl_average_value(int ad) +{ + int i, ad_val = 0; + static int sharpsl_ad[SHARPSL_CNV_VALUE_NUM+1]; + + if (sharpsl_pm.battstat.mainbat_status != APM_BATTERY_STATUS_HIGH) { + sharpsl_ad_index = 0; + return ad; + } + + sharpsl_ad[sharpsl_ad_index] = ad; + sharpsl_ad_index++; + if (sharpsl_ad_index >= SHARPSL_CNV_VALUE_NUM) { + for (i=0; i < (SHARPSL_CNV_VALUE_NUM-1); i++) + sharpsl_ad[i] = sharpsl_ad[i+1]; + sharpsl_ad_index = SHARPSL_CNV_VALUE_NUM - 1; + } + for (i=0; i < sharpsl_ad_index; i++) + ad_val += sharpsl_ad[i]; + + return (ad_val / sharpsl_ad_index); +} + +/* + * Take an array of 5 integers, remove the maximum and minimum values + * and return the average. + */ +static int get_select_val(int *val) +{ + int i, j, k, temp, sum = 0; + + /* Find MAX val */ + temp = val[0]; + j=0; + for (i=1; i<5; i++) { + if (temp < val[i]) { + temp = val[i]; + j = i; + } + } + + /* Find MIN val */ + temp = val[4]; + k=4; + for (i=3; i>=0; i--) { + if (temp > val[i]) { + temp = val[i]; + k = i; + } + } + + for (i=0; i<5; i++) + if (i != j && i != k ) + sum += val[i]; + + dev_dbg(sharpsl_pm.dev, "Average: %d from values: %d, %d, %d, %d, %d\n", sum/3, val[0], val[1], val[2], val[3], val[4]); + + return (sum/3); +} + +static int sharpsl_check_battery_temp(void) +{ + int val, i, buff[5]; + + /* Check battery temperature */ + for (i=0; i<5; i++) { + mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP); + sharpsl_pm.machinfo->measure_temp(1); + mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP); + buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_TEMP); + sharpsl_pm.machinfo->measure_temp(0); + } + + val = get_select_val(buff); + + dev_dbg(sharpsl_pm.dev, "Temperature: %d\n", val); + if (val > SHARPSL_CHARGE_ON_TEMP) + return -1; + + return 0; +} + +static int sharpsl_check_battery_voltage(void) +{ + int val, i, buff[5]; + + /* disable charge, enable discharge */ + sharpsl_pm.machinfo->charge(0); + sharpsl_pm.machinfo->discharge(1); + mdelay(SHARPSL_WAIT_DISCHARGE_ON); + + if (sharpsl_pm.machinfo->discharge1) + sharpsl_pm.machinfo->discharge1(1); + + /* Check battery voltage */ + for (i=0; i<5; i++) { + buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_VOLT); + mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT); + } + + if (sharpsl_pm.machinfo->discharge1) + sharpsl_pm.machinfo->discharge1(0); + + sharpsl_pm.machinfo->discharge(0); + + val = get_select_val(buff); + dev_dbg(sharpsl_pm.dev, "Battery Voltage: %d\n", val); + + if (val < SHARPSL_CHARGE_ON_VOLT) + return -1; + + return 0; +} + +static int sharpsl_ac_check(void) +{ + int temp, i, buff[5]; + + for (i=0; i<5; i++) { + buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_ACIN_VOLT); + mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_ACIN); + } + + temp = get_select_val(buff); + dev_dbg(sharpsl_pm.dev, "AC Voltage: %d\n",temp); + + if ((temp > SHARPSL_CHARGE_ON_ACIN_HIGH) || (temp < SHARPSL_CHARGE_ON_ACIN_LOW)) { + dev_err(sharpsl_pm.dev, "Error: AC check failed.\n"); + return -1; + } + + return 0; +} + +#ifdef CONFIG_PM +static int sharpsl_pm_suspend(struct platform_device *pdev, pm_message_t state) +{ + sharpsl_pm.flags |= SHARPSL_SUSPENDED; + flush_scheduled_work(); + + if (sharpsl_pm.charge_mode == CHRG_ON) + sharpsl_pm.flags |= SHARPSL_DO_OFFLINE_CHRG; + else + sharpsl_pm.flags &= ~SHARPSL_DO_OFFLINE_CHRG; + + return 0; +} + +static int sharpsl_pm_resume(struct platform_device *pdev) +{ + /* Clear the reset source indicators as they break the bootloader upon reboot */ + RCSR = 0x0f; + sharpsl_average_clear(); + sharpsl_pm.flags &= ~SHARPSL_APM_QUEUED; + sharpsl_pm.flags &= ~SHARPSL_SUSPENDED; + + return 0; +} + +static void corgi_goto_sleep(unsigned long alarm_time, unsigned int alarm_enable, suspend_state_t state) +{ + dev_dbg(sharpsl_pm.dev, "Time is: %08x\n",RCNR); + + dev_dbg(sharpsl_pm.dev, "Offline Charge Activate = %d\n",sharpsl_pm.flags & SHARPSL_DO_OFFLINE_CHRG); + /* not charging and AC-IN! */ + + if ((sharpsl_pm.flags & SHARPSL_DO_OFFLINE_CHRG) && (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN))) { + dev_dbg(sharpsl_pm.dev, "Activating Offline Charger...\n"); + sharpsl_pm.charge_mode = CHRG_OFF; + sharpsl_pm.flags &= ~SHARPSL_DO_OFFLINE_CHRG; + sharpsl_off_charge_battery(); + } + + sharpsl_pm.machinfo->presuspend(); + + PEDR = 0xffffffff; /* clear it */ + + sharpsl_pm.flags &= ~SHARPSL_ALARM_ACTIVE; + if ((sharpsl_pm.charge_mode == CHRG_ON) && ((alarm_enable && ((alarm_time - RCNR) > (SHARPSL_BATCHK_TIME_SUSPEND + 30))) || !alarm_enable)) { + RTSR &= RTSR_ALE; + RTAR = RCNR + SHARPSL_BATCHK_TIME_SUSPEND; + dev_dbg(sharpsl_pm.dev, "Charging alarm at: %08x\n",RTAR); + sharpsl_pm.flags |= SHARPSL_ALARM_ACTIVE; + } else if (alarm_enable) { + RTSR &= RTSR_ALE; + RTAR = alarm_time; + dev_dbg(sharpsl_pm.dev, "User alarm at: %08x\n",RTAR); + } else { + dev_dbg(sharpsl_pm.dev, "No alarms set.\n"); + } + + pxa_pm_enter(state); + + sharpsl_pm.machinfo->postsuspend(); + + dev_dbg(sharpsl_pm.dev, "Corgi woken up from suspend: %08x\n",PEDR); +} + +static int corgi_enter_suspend(unsigned long alarm_time, unsigned int alarm_enable, suspend_state_t state) +{ + if (!sharpsl_pm.machinfo->should_wakeup(!(sharpsl_pm.flags & SHARPSL_ALARM_ACTIVE) && alarm_enable) ) + { + if (!(sharpsl_pm.flags & SHARPSL_ALARM_ACTIVE)) { + dev_dbg(sharpsl_pm.dev, "No user triggered wakeup events and not charging. Strange. Suspend.\n"); + corgi_goto_sleep(alarm_time, alarm_enable, state); + return 1; + } + if(sharpsl_off_charge_battery()) { + dev_dbg(sharpsl_pm.dev, "Charging. Suspend...\n"); + corgi_goto_sleep(alarm_time, alarm_enable, state); + return 1; + } + dev_dbg(sharpsl_pm.dev, "User triggered wakeup in offline charger.\n"); + } + + if ((!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_LOCK)) || (sharpsl_fatal_check() < 0) ) + { + dev_err(sharpsl_pm.dev, "Fatal condition. Suspend.\n"); + corgi_goto_sleep(alarm_time, alarm_enable, state); + return 1; + } + + return 0; +} + +static int corgi_pxa_pm_enter(suspend_state_t state) +{ + unsigned long alarm_time = RTAR; + unsigned int alarm_status = ((RTSR & RTSR_ALE) != 0); + + dev_dbg(sharpsl_pm.dev, "SharpSL suspending for first time.\n"); + + corgi_goto_sleep(alarm_time, alarm_status, state); + + while (corgi_enter_suspend(alarm_time,alarm_status,state)) + {} + + dev_dbg(sharpsl_pm.dev, "SharpSL resuming...\n"); + + return 0; +} +#endif + + +/* + * Check for fatal battery errors + * Fatal returns -1 + */ +static int sharpsl_fatal_check(void) +{ + int buff[5], temp, i, acin; + + dev_dbg(sharpsl_pm.dev, "sharpsl_fatal_check entered\n"); + + /* Check AC-Adapter */ + acin = sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN); + + if (acin && (sharpsl_pm.charge_mode == CHRG_ON)) { + sharpsl_pm.machinfo->charge(0); + udelay(100); + sharpsl_pm.machinfo->discharge(1); /* enable discharge */ + mdelay(SHARPSL_WAIT_DISCHARGE_ON); + } + + if (sharpsl_pm.machinfo->discharge1) + sharpsl_pm.machinfo->discharge1(1); + + /* Check battery : check inserting battery ? */ + for (i=0; i<5; i++) { + buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_VOLT); + mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT); + } + + if (sharpsl_pm.machinfo->discharge1) + sharpsl_pm.machinfo->discharge1(0); + + if (acin && (sharpsl_pm.charge_mode == CHRG_ON)) { + udelay(100); + sharpsl_pm.machinfo->charge(1); + sharpsl_pm.machinfo->discharge(0); + } + + temp = get_select_val(buff); + dev_dbg(sharpsl_pm.dev, "sharpsl_fatal_check: acin: %d, discharge voltage: %d, no discharge: %d\n", acin, temp, sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_VOLT)); + + if ((acin && (temp < SHARPSL_FATAL_ACIN_VOLT)) || + (!acin && (temp < SHARPSL_FATAL_NOACIN_VOLT))) + return -1; + return 0; +} + +static int sharpsl_off_charge_error(void) +{ + dev_err(sharpsl_pm.dev, "Offline Charger: Error occured.\n"); + sharpsl_pm.machinfo->charge(0); + sharpsl_pm_led(SHARPSL_LED_ERROR); + sharpsl_pm.charge_mode = CHRG_ERROR; + return 1; +} + +/* + * Charging Control while suspended + * Return 1 - go straight to sleep + * Return 0 - sleep or wakeup depending on other factors + */ +static int sharpsl_off_charge_battery(void) +{ + int time; + + dev_dbg(sharpsl_pm.dev, "Charge Mode: %d\n", sharpsl_pm.charge_mode); + + if (sharpsl_pm.charge_mode == CHRG_OFF) { + dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 1\n"); + + /* AC Check */ + if ((sharpsl_ac_check() < 0) || (sharpsl_check_battery_temp() < 0)) + return sharpsl_off_charge_error(); + + /* Start Charging */ + sharpsl_pm_led(SHARPSL_LED_ON); + sharpsl_pm.machinfo->charge(0); + mdelay(SHARPSL_CHARGE_WAIT_TIME); + sharpsl_pm.machinfo->charge(1); + + sharpsl_pm.charge_mode = CHRG_ON; + sharpsl_pm.full_count = 0; + + return 1; + } else if (sharpsl_pm.charge_mode != CHRG_ON) { + return 1; + } + + if (sharpsl_pm.full_count == 0) { + int time; + + dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 2\n"); + + if ((sharpsl_check_battery_temp() < 0) || (sharpsl_check_battery_voltage() < 0)) + return sharpsl_off_charge_error(); + + sharpsl_pm.machinfo->charge(0); + mdelay(SHARPSL_CHARGE_WAIT_TIME); + sharpsl_pm.machinfo->charge(1); + sharpsl_pm.charge_mode = CHRG_ON; + + mdelay(SHARPSL_CHARGE_CO_CHECK_TIME); + + time = RCNR; + while(1) { + /* Check if any wakeup event had occured */ + if (sharpsl_pm.machinfo->charger_wakeup() != 0) + return 0; + /* Check for timeout */ + if ((RCNR - time) > SHARPSL_WAIT_CO_TIME) + return 1; + if (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_CHRGFULL)) { + dev_dbg(sharpsl_pm.dev, "Offline Charger: Charge full occured. Retrying to check\n"); + sharpsl_pm.full_count++; + sharpsl_pm.machinfo->charge(0); + mdelay(SHARPSL_CHARGE_WAIT_TIME); + sharpsl_pm.machinfo->charge(1); + return 1; + } + } + } + + dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 3\n"); + + mdelay(SHARPSL_CHARGE_CO_CHECK_TIME); + + time = RCNR; + while(1) { + /* Check if any wakeup event had occured */ + if (sharpsl_pm.machinfo->charger_wakeup() != 0) + return 0; + /* Check for timeout */ + if ((RCNR-time) > SHARPSL_WAIT_CO_TIME) { + if (sharpsl_pm.full_count > SHARPSL_CHARGE_RETRY_CNT) { + dev_dbg(sharpsl_pm.dev, "Offline Charger: Not charged sufficiently. Retrying.\n"); + sharpsl_pm.full_count = 0; + } + sharpsl_pm.full_count++; + return 1; + } + if (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_CHRGFULL)) { + dev_dbg(sharpsl_pm.dev, "Offline Charger: Charging complete.\n"); + sharpsl_pm_led(SHARPSL_LED_OFF); + sharpsl_pm.machinfo->charge(0); + sharpsl_pm.charge_mode = CHRG_DONE; + return 1; + } + } +} + + +static ssize_t battery_percentage_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "%d\n",sharpsl_pm.battstat.mainbat_percent); +} + +static ssize_t battery_voltage_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "%d\n",sharpsl_pm.battstat.mainbat_voltage); +} + +static DEVICE_ATTR(battery_percentage, 0444, battery_percentage_show, NULL); +static DEVICE_ATTR(battery_voltage, 0444, battery_voltage_show, NULL); + +extern void (*apm_get_power_status)(struct apm_power_info *); + +static void sharpsl_apm_get_power_status(struct apm_power_info *info) +{ + info->ac_line_status = sharpsl_pm.battstat.ac_status; + + if (sharpsl_pm.charge_mode == CHRG_ON) + info->battery_status = APM_BATTERY_STATUS_CHARGING; + else + info->battery_status = sharpsl_pm.battstat.mainbat_status; + + info->battery_flag = (1 << info->battery_status); + info->battery_life = sharpsl_pm.battstat.mainbat_percent; +} + +static struct pm_ops sharpsl_pm_ops = { + .pm_disk_mode = PM_DISK_FIRMWARE, + .prepare = pxa_pm_prepare, + .enter = corgi_pxa_pm_enter, + .finish = pxa_pm_finish, +}; + +static int __init sharpsl_pm_probe(struct platform_device *pdev) +{ + if (!pdev->dev.platform_data) + return -EINVAL; + + sharpsl_pm.dev = &pdev->dev; + sharpsl_pm.machinfo = pdev->dev.platform_data; + sharpsl_pm.charge_mode = CHRG_OFF; + sharpsl_pm.flags = 0; + + init_timer(&sharpsl_pm.ac_timer); + sharpsl_pm.ac_timer.function = sharpsl_ac_timer; + + init_timer(&sharpsl_pm.chrg_full_timer); + sharpsl_pm.chrg_full_timer.function = sharpsl_chrg_full_timer; + + sharpsl_pm.machinfo->init(); + + device_create_file(&pdev->dev, &dev_attr_battery_percentage); + device_create_file(&pdev->dev, &dev_attr_battery_voltage); + + apm_get_power_status = sharpsl_apm_get_power_status; + + pm_set_ops(&sharpsl_pm_ops); + + mod_timer(&sharpsl_pm.ac_timer, jiffies + msecs_to_jiffies(250)); + + return 0; +} + +static int sharpsl_pm_remove(struct platform_device *pdev) +{ + pm_set_ops(NULL); + + device_remove_file(&pdev->dev, &dev_attr_battery_percentage); + device_remove_file(&pdev->dev, &dev_attr_battery_voltage); + + sharpsl_pm.machinfo->exit(); + + del_timer_sync(&sharpsl_pm.chrg_full_timer); + del_timer_sync(&sharpsl_pm.ac_timer); + + return 0; +} + +static struct platform_driver sharpsl_pm_driver = { + .probe = sharpsl_pm_probe, + .remove = sharpsl_pm_remove, + .suspend = sharpsl_pm_suspend, + .resume = sharpsl_pm_resume, + .driver = { + .name = "sharpsl-pm", + }, +}; + +static int __devinit sharpsl_pm_init(void) +{ + return platform_driver_register(&sharpsl_pm_driver); +} + +static void sharpsl_pm_exit(void) +{ + platform_driver_unregister(&sharpsl_pm_driver); +} + +late_initcall(sharpsl_pm_init); +module_exit(sharpsl_pm_exit); diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig index 2a58499c096..c1d77f5b382 100644 --- a/arch/arm/mach-pxa/Kconfig +++ b/arch/arm/mach-pxa/Kconfig @@ -112,12 +112,14 @@ config IWMMXT config PXA_SHARP_C7xx bool select PXA_SSP + select SHARPSL_PM help Enable support for all Sharp C7xx models config PXA_SHARP_Cxx00 bool select PXA_SSP + select SHARPSL_PM help Enable common support for Sharp Cxx00 models diff --git a/arch/arm/mach-pxa/corgi_pm.c b/arch/arm/mach-pxa/corgi_pm.c index 599be14754f..de8b2403c92 100644 --- a/arch/arm/mach-pxa/corgi_pm.c +++ b/arch/arm/mach-pxa/corgi_pm.c @@ -21,6 +21,7 @@ #include <asm/mach-types.h> #include <asm/hardware.h> #include <asm/hardware/scoop.h> +#include <asm/hardware/sharpsl_pm.h> #include <asm/arch/sharpsl.h> #include <asm/arch/corgi.h> @@ -33,19 +34,7 @@ static void corgi_charger_init(void) pxa_gpio_mode(CORGI_GPIO_CHRG_ON | GPIO_OUT); pxa_gpio_mode(CORGI_GPIO_CHRG_UKN | GPIO_OUT); pxa_gpio_mode(CORGI_GPIO_KEY_INT | GPIO_IN); -} - -static void corgi_charge_led(int val) -{ - if (val == SHARPSL_LED_ERROR) { - dev_dbg(sharpsl_pm.dev, "Charge LED Error\n"); - } else if (val == SHARPSL_LED_ON) { - dev_dbg(sharpsl_pm.dev, "Charge LED On\n"); - GPSR0 = GPIO_bit(CORGI_GPIO_LED_ORANGE); - } else { - dev_dbg(sharpsl_pm.dev, "Charge LED Off\n"); - GPCR0 = GPIO_bit(CORGI_GPIO_LED_ORANGE); - } + sharpsl_pm_pxa_init(); } static void corgi_measure_temp(int on) @@ -138,15 +127,15 @@ static int corgi_should_wakeup(unsigned int resume_on_alarm) dev_dbg(sharpsl_pm.dev, "GPLR0 = %x,%x\n", GPLR0, PEDR); if ((PEDR & GPIO_bit(CORGI_GPIO_AC_IN))) { - if (STATUS_AC_IN()) { + if (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN)) { /* charge on */ dev_dbg(sharpsl_pm.dev, "ac insert\n"); sharpsl_pm.flags |= SHARPSL_DO_OFFLINE_CHRG; } else { /* charge off */ dev_dbg(sharpsl_pm.dev, "ac remove\n"); - CHARGE_LED_OFF(); - CHARGE_OFF(); + sharpsl_pm_led(SHARPSL_LED_OFF); + sharpsl_pm.machinfo->charge(0); sharpsl_pm.charge_mode = CHRG_OFF; } } @@ -172,23 +161,39 @@ static unsigned long corgi_charger_wakeup(void) return ~GPLR0 & ( GPIO_bit(CORGI_GPIO_AC_IN) | GPIO_bit(CORGI_GPIO_KEY_INT) | GPIO_bit(CORGI_GPIO_WAKEUP) ); } -static int corgi_acin_status(void) +unsigned long corgipm_read_devdata(int type) { - return ((GPLR(CORGI_GPIO_AC_IN) & GPIO_bit(CORGI_GPIO_AC_IN)) != 0); + switch(type) { + case SHARPSL_STATUS_ACIN: + return ((GPLR(CORGI_GPIO_AC_IN) & GPIO_bit(CORGI_GPIO_AC_IN)) != 0); + case SHARPSL_STATUS_LOCK: + return READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_batlock); + case SHARPSL_STATUS_CHRGFULL: + return READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_batfull); + case SHARPSL_STATUS_FATAL: + return READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_fatal); + case SHARPSL_ACIN_VOLT: + return sharpsl_pm_pxa_read_max1111(MAX1111_ACIN_VOLT); + case SHARPSL_BATT_TEMP: + return sharpsl_pm_pxa_read_max1111(MAX1111_BATT_TEMP); + case SHARPSL_BATT_VOLT: + default: + return sharpsl_pm_pxa_read_max1111(MAX1111_BATT_VOLT); + } } static struct sharpsl_charger_machinfo corgi_pm_machinfo = { .init = corgi_charger_init, + .exit = sharpsl_pm_pxa_remove, .gpio_batlock = CORGI_GPIO_BAT_COVER, .gpio_acin = CORGI_GPIO_AC_IN, .gpio_batfull = CORGI_GPIO_CHRG_FULL, - .status_acin = corgi_acin_status, .discharge = corgi_discharge, .charge = corgi_charge, - .chargeled = corgi_charge_led, .measure_temp = corgi_measure_temp, .presuspend = corgi_presuspend, .postsuspend = corgi_postsuspend, + .read_devdata = corgipm_read_devdata, .charger_wakeup = corgi_charger_wakeup, .should_wakeup = corgi_should_wakeup, .bat_levels = 40, diff --git a/arch/arm/mach-pxa/sharpsl.h b/arch/arm/mach-pxa/sharpsl.h index b0c40a1d667..92b79305050 100644 --- a/arch/arm/mach-pxa/sharpsl.h +++ b/arch/arm/mach-pxa/sharpsl.h @@ -1,7 +1,16 @@ /* - * SharpSL SSP Driver + * Copyright (c) 2004-2005 Richard Purdie + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * */ + +/* + * SharpSL SSP Driver + */ struct corgissp_machinfo { int port; int cs_lcdcon; @@ -14,18 +23,18 @@ struct corgissp_machinfo { void corgi_ssp_set_machinfo(struct corgissp_machinfo *machinfo); + /* * SharpSL Backlight */ - void corgi_bl_set_intensity(int intensity); void spitz_bl_set_intensity(int intensity); void akita_bl_set_intensity(int intensity); + /* * SharpSL Touchscreen Driver */ - unsigned long corgi_get_hsync_len(void); unsigned long spitz_get_hsync_len(void); void corgi_put_hsync(void); @@ -33,89 +42,22 @@ void spitz_put_hsync(void); void corgi_wait_hsync(void); void spitz_wait_hsync(void); + /* * SharpSL Battery/PM Driver */ -struct sharpsl_charger_machinfo { - void (*init)(void); - int gpio_acin; - int gpio_batfull; - int gpio_batlock; - int gpio_fatal; - int (*status_acin)(void); - void (*discharge)(int); - void (*discharge1)(int); - void (*charge)(int); - void (*chargeled)(int); - void (*measure_temp)(int); - void (*presuspend)(void); - void (*postsuspend)(void); - unsigned long (*charger_wakeup)(void); - int (*should_wakeup)(unsigned int resume_on_alarm); - int bat_levels; - struct battery_thresh *bat_levels_noac; - struct battery_thresh *bat_levels_acin; - int status_high_acin; - int status_low_acin; - int status_high_noac; - int status_low_noac; -}; - -struct battery_thresh { - int voltage; - int percentage; -}; - -struct battery_stat { - int ac_status; /* APM AC Present/Not Present */ - int mainbat_status; /* APM Main Battery Status */ - int mainbat_percent; /* Main Battery Percentage Charge */ - int mainbat_voltage; /* Main Battery Voltage */ -}; - -struct sharpsl_pm_status { - struct device *dev; - struct timer_list ac_timer; - struct timer_list chrg_full_timer; - - int charge_mode; -#define CHRG_ERROR (-1) -#define CHRG_OFF (0) -#define CHRG_ON (1) -#define CHRG_DONE (2) - - unsigned int flags; -#define SHARPSL_SUSPENDED (1 << 0) /* Device is Suspended */ -#define SHARPSL_ALARM_ACTIVE (1 << 1) /* Alarm is for charging event (not user) */ -#define SHARPSL_BL_LIMIT (1 << 2) /* Backlight Intensity Limited */ -#define SHARPSL_APM_QUEUED (1 << 3) /* APM Event Queued */ -#define SHARPSL_DO_OFFLINE_CHRG (1 << 4) /* Trigger the offline charger */ +#define READ_GPIO_BIT(x) (GPLR(x) & GPIO_bit(x)) - int full_count; - unsigned long charge_start_time; - struct sharpsl_charger_machinfo *machinfo; - struct battery_stat battstat; -}; +/* MAX1111 Channel Definitions */ +#define MAX1111_BATT_VOLT 4u +#define MAX1111_BATT_TEMP 2u +#define MAX1111_ACIN_VOLT 6u -extern struct sharpsl_pm_status sharpsl_pm; extern struct battery_thresh spitz_battery_levels_acin[]; extern struct battery_thresh spitz_battery_levels_noac[]; +void sharpsl_pm_pxa_init(void); +void sharpsl_pm_pxa_remove(void); +int sharpsl_pm_pxa_read_max1111(int channel); -#define READ_GPIO_BIT(x) (GPLR(x) & GPIO_bit(x)) - -#define SHARPSL_LED_ERROR 2 -#define SHARPSL_LED_ON 1 -#define SHARPSL_LED_OFF 0 -#define CHARGE_ON() sharpsl_pm.machinfo->charge(1) -#define CHARGE_OFF() sharpsl_pm.machinfo->charge(0) -#define CHARGE_LED_ON() sharpsl_pm.machinfo->chargeled(SHARPSL_LED_ON) -#define CHARGE_LED_OFF() sharpsl_pm.machinfo->chargeled(SHARPSL_LED_OFF) -#define CHARGE_LED_ERR() sharpsl_pm.machinfo->chargeled(SHARPSL_LED_ERROR) -#define DISCHARGE_ON() sharpsl_pm.machinfo->discharge(1) -#define DISCHARGE_OFF() sharpsl_pm.machinfo->discharge(0) -#define STATUS_AC_IN() sharpsl_pm.machinfo->status_acin() -#define STATUS_BATT_LOCKED() READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_batlock) -#define STATUS_CHRG_FULL() READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_batfull) -#define STATUS_FATAL() READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_fatal) diff --git a/arch/arm/mach-pxa/sharpsl_pm.c b/arch/arm/mach-pxa/sharpsl_pm.c index c10be00fb52..f6fefb18141 100644 --- a/arch/arm/mach-pxa/sharpsl_pm.c +++ b/arch/arm/mach-pxa/sharpsl_pm.c @@ -15,48 +15,21 @@ #undef DEBUG #include <linux/module.h> -#include <linux/timer.h> #include <linux/init.h> #include <linux/kernel.h> -#include <linux/apm_bios.h> -#include <linux/delay.h> #include <linux/interrupt.h> #include <linux/platform_device.h> #include <asm/hardware.h> -#include <asm/hardware/scoop.h> #include <asm/mach-types.h> #include <asm/irq.h> #include <asm/apm.h> - #include <asm/arch/pm.h> #include <asm/arch/pxa-regs.h> #include <asm/arch/sharpsl.h> +#include <asm/hardware/sharpsl_pm.h> #include "sharpsl.h" -/* - * Constants - */ -#define SHARPSL_CHARGE_ON_TIME_INTERVAL (msecs_to_jiffies(1*60*1000)) /* 1 min */ -#define SHARPSL_CHARGE_FINISH_TIME (msecs_to_jiffies(10*60*1000)) /* 10 min */ -#define SHARPSL_BATCHK_TIME (msecs_to_jiffies(15*1000)) /* 15 sec */ -#define SHARPSL_BATCHK_TIME_SUSPEND (60*10) /* 10 min */ -#define SHARPSL_WAIT_CO_TIME 15 /* 15 sec */ -#define SHARPSL_WAIT_DISCHARGE_ON 100 /* 100 msec */ -#define SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP 10 /* 10 msec */ -#define SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT 10 /* 10 msec */ -#define SHARPSL_CHECK_BATTERY_WAIT_TIME_ACIN 10 /* 10 msec */ -#define SHARPSL_CHARGE_WAIT_TIME 15 /* 15 msec */ -#define SHARPSL_CHARGE_CO_CHECK_TIME 5 /* 5 msec */ -#define SHARPSL_CHARGE_RETRY_CNT 1 /* eqv. 10 min */ - -#define SHARPSL_CHARGE_ON_VOLT 0x99 /* 2.9V */ -#define SHARPSL_CHARGE_ON_TEMP 0xe0 /* 2.9V */ -#define SHARPSL_CHARGE_ON_ACIN_HIGH 0x9b /* 6V */ -#define SHARPSL_CHARGE_ON_ACIN_LOW 0x34 /* 2V */ -#define SHARPSL_FATAL_ACIN_VOLT 182 /* 3.45V */ -#define SHARPSL_FATAL_NOACIN_VOLT 170 /* 3.40V */ - struct battery_thresh spitz_battery_levels_acin[] = { { 213, 100}, { 212, 98}, @@ -151,763 +124,17 @@ struct battery_thresh spitz_battery_levels_noac[] = { #define MAXCTRL_SEL_SH 4 #define MAXCTRL_STR 1u << 7 -/* MAX1111 Channel Definitions */ -#define BATT_AD 4u -#define BATT_THM 2u -#define JK_VAD 6u - - -/* - * Prototypes - */ -static int sharpsl_read_main_battery(void); -static int sharpsl_off_charge_battery(void); -static int sharpsl_check_battery_temp(void); -static int sharpsl_check_battery_voltage(void); -static int sharpsl_ac_check(void); -static int sharpsl_fatal_check(void); -static int sharpsl_average_value(int ad); -static void sharpsl_average_clear(void); -static void sharpsl_charge_toggle(void *private_); -static void sharpsl_battery_thread(void *private_); - - -/* - * Variables - */ -struct sharpsl_pm_status sharpsl_pm; -DECLARE_WORK(toggle_charger, sharpsl_charge_toggle, NULL); -DECLARE_WORK(sharpsl_bat, sharpsl_battery_thread, NULL); - - -static int get_percentage(int voltage) -{ - int i = sharpsl_pm.machinfo->bat_levels - 1; - struct battery_thresh *thresh; - - if (sharpsl_pm.charge_mode == CHRG_ON) - thresh=sharpsl_pm.machinfo->bat_levels_acin; - else - thresh=sharpsl_pm.machinfo->bat_levels_noac; - - while (i > 0 && (voltage > thresh[i].voltage)) - i--; - - return thresh[i].percentage; -} - -static int get_apm_status(int voltage) -{ - int low_thresh, high_thresh; - - if (sharpsl_pm.charge_mode == CHRG_ON) { - high_thresh = sharpsl_pm.machinfo->status_high_acin; - low_thresh = sharpsl_pm.machinfo->status_low_acin; - } else { - high_thresh = sharpsl_pm.machinfo->status_high_noac; - low_thresh = sharpsl_pm.machinfo->status_low_noac; - } - - if (voltage >= high_thresh) - return APM_BATTERY_STATUS_HIGH; - if (voltage >= low_thresh) - return APM_BATTERY_STATUS_LOW; - return APM_BATTERY_STATUS_CRITICAL; -} - -void sharpsl_battery_kick(void) -{ - schedule_delayed_work(&sharpsl_bat, msecs_to_jiffies(125)); -} -EXPORT_SYMBOL(sharpsl_battery_kick); - - -static void sharpsl_battery_thread(void *private_) -{ - int voltage, percent, apm_status, i = 0; - - if (!sharpsl_pm.machinfo) - return; - - sharpsl_pm.battstat.ac_status = (STATUS_AC_IN() ? APM_AC_ONLINE : APM_AC_OFFLINE); - - /* Corgi cannot confirm when battery fully charged so periodically kick! */ - if (machine_is_corgi() && (sharpsl_pm.charge_mode == CHRG_ON) - && time_after(jiffies, sharpsl_pm.charge_start_time + SHARPSL_CHARGE_ON_TIME_INTERVAL)) - schedule_work(&toggle_charger); - - while(1) { - voltage = sharpsl_read_main_battery(); - if (voltage > 0) break; - if (i++ > 5) { - voltage = sharpsl_pm.machinfo->bat_levels_noac[0].voltage; - dev_warn(sharpsl_pm.dev, "Warning: Cannot read main battery!\n"); - break; - } - } - - voltage = sharpsl_average_value(voltage); - apm_status = get_apm_status(voltage); - percent = get_percentage(voltage); - - /* At low battery voltages, the voltage has a tendency to start - creeping back up so we try to avoid this here */ - if ((sharpsl_pm.battstat.ac_status == APM_AC_ONLINE) || (apm_status == APM_BATTERY_STATUS_HIGH) || percent <= sharpsl_pm.battstat.mainbat_percent) { - sharpsl_pm.battstat.mainbat_voltage = voltage; - sharpsl_pm.battstat.mainbat_status = apm_status; - sharpsl_pm.battstat.mainbat_percent = percent; - } - - dev_dbg(sharpsl_pm.dev, "Battery: voltage: %d, status: %d, percentage: %d, time: %d\n", voltage, - sharpsl_pm.battstat.mainbat_status, sharpsl_pm.battstat.mainbat_percent, jiffies); - - /* If battery is low. limit backlight intensity to save power. */ - if ((sharpsl_pm.battstat.ac_status != APM_AC_ONLINE) - && ((sharpsl_pm.battstat.mainbat_status == APM_BATTERY_STATUS_LOW) || - (sharpsl_pm.battstat.mainbat_status == APM_BATTERY_STATUS_CRITICAL))) { - if (!(sharpsl_pm.flags & SHARPSL_BL_LIMIT)) { - corgibl_limit_intensity(1); - sharpsl_pm.flags |= SHARPSL_BL_LIMIT; - } - } else if (sharpsl_pm.flags & SHARPSL_BL_LIMIT) { - corgibl_limit_intensity(0); - sharpsl_pm.flags &= ~SHARPSL_BL_LIMIT; - } - - /* Suspend if critical battery level */ - if ((sharpsl_pm.battstat.ac_status != APM_AC_ONLINE) - && (sharpsl_pm.battstat.mainbat_status == APM_BATTERY_STATUS_CRITICAL) - && !(sharpsl_pm.flags & SHARPSL_APM_QUEUED)) { - sharpsl_pm.flags |= SHARPSL_APM_QUEUED; - dev_err(sharpsl_pm.dev, "Fatal Off\n"); - apm_queue_event(APM_CRITICAL_SUSPEND); - } - - schedule_delayed_work(&sharpsl_bat, SHARPSL_BATCHK_TIME); -} - -static void sharpsl_charge_on(void) -{ - dev_dbg(sharpsl_pm.dev, "Turning Charger On\n"); - - sharpsl_pm.full_count = 0; - sharpsl_pm.charge_mode = CHRG_ON; - schedule_delayed_work(&toggle_charger, msecs_to_jiffies(250)); - schedule_delayed_work(&sharpsl_bat, msecs_to_jiffies(500)); -} - -static void sharpsl_charge_off(void) -{ - dev_dbg(sharpsl_pm.dev, "Turning Charger Off\n"); - - CHARGE_OFF(); - CHARGE_LED_OFF(); - sharpsl_pm.charge_mode = CHRG_OFF; - - schedule_work(&sharpsl_bat); -} - -static void sharpsl_charge_error(void) -{ - CHARGE_LED_ERR(); - CHARGE_OFF(); - sharpsl_pm.charge_mode = CHRG_ERROR; -} - -static void sharpsl_charge_toggle(void *private_) -{ - dev_dbg(sharpsl_pm.dev, "Toogling Charger at time: %lx\n", jiffies); - - if (STATUS_AC_IN() == 0) { - sharpsl_charge_off(); - return; - } else if ((sharpsl_check_battery_temp() < 0) || (sharpsl_ac_check() < 0)) { - sharpsl_charge_error(); - return; - } - - CHARGE_LED_ON(); - CHARGE_OFF(); - mdelay(SHARPSL_CHARGE_WAIT_TIME); - CHARGE_ON(); - - sharpsl_pm.charge_start_time = jiffies; -} - -static void sharpsl_ac_timer(unsigned long data) -{ - int acin = STATUS_AC_IN(); - - dev_dbg(sharpsl_pm.dev, "AC Status: %d\n",acin); - - sharpsl_average_clear(); - if (acin && (sharpsl_pm.charge_mode != CHRG_ON)) - sharpsl_charge_on(); - else if (sharpsl_pm.charge_mode == CHRG_ON) - sharpsl_charge_off(); - - schedule_work(&sharpsl_bat); -} - - -static irqreturn_t sharpsl_ac_isr(int irq, void *dev_id, struct pt_regs *fp) -{ - /* Delay the event slightly to debounce */ - /* Must be a smaller delay than the chrg_full_isr below */ - mod_timer(&sharpsl_pm.ac_timer, jiffies + msecs_to_jiffies(250)); - - return IRQ_HANDLED; -} - -static void sharpsl_chrg_full_timer(unsigned long data) -{ - dev_dbg(sharpsl_pm.dev, "Charge Full at time: %lx\n", jiffies); - - sharpsl_pm.full_count++; - - if (STATUS_AC_IN() == 0) { - dev_dbg(sharpsl_pm.dev, "Charge Full: AC removed - stop charging!\n"); - if (sharpsl_pm.charge_mode == CHRG_ON) - sharpsl_charge_off(); - } else if (sharpsl_pm.full_count < 2) { - dev_dbg(sharpsl_pm.dev, "Charge Full: Count too low\n"); - schedule_work(&toggle_charger); - } else if (time_after(jiffies, sharpsl_pm.charge_start_time + SHARPSL_CHARGE_FINISH_TIME)) { - dev_dbg(sharpsl_pm.dev, "Charge Full: Interrupt generated too slowly - retry.\n"); - schedule_work(&toggle_charger); - } else { - sharpsl_charge_off(); - sharpsl_pm.charge_mode = CHRG_DONE; - dev_dbg(sharpsl_pm.dev, "Charge Full: Charging Finished\n"); - } -} - -/* Charging Finished Interrupt (Not present on Corgi) */ -/* Can trigger at the same time as an AC staus change so - delay until after that has been processed */ -static irqreturn_t sharpsl_chrg_full_isr(int irq, void *dev_id, struct pt_regs *fp) -{ - if (sharpsl_pm.flags & SHARPSL_SUSPENDED) - return IRQ_HANDLED; - - /* delay until after any ac interrupt */ - mod_timer(&sharpsl_pm.chrg_full_timer, jiffies + msecs_to_jiffies(500)); - - return IRQ_HANDLED; -} - -static irqreturn_t sharpsl_fatal_isr(int irq, void *dev_id, struct pt_regs *fp) -{ - int is_fatal = 0; - - if (STATUS_BATT_LOCKED() == 0) { - dev_err(sharpsl_pm.dev, "Battery now Unlocked! Suspending.\n"); - is_fatal = 1; - } - - if (sharpsl_pm.machinfo->gpio_fatal && (STATUS_FATAL() == 0)) { - dev_err(sharpsl_pm.dev, "Fatal Batt Error! Suspending.\n"); - is_fatal = 1; - } - - if (!(sharpsl_pm.flags & SHARPSL_APM_QUEUED) && is_fatal) { - sharpsl_pm.flags |= SHARPSL_APM_QUEUED; - apm_queue_event(APM_CRITICAL_SUSPEND); - } - - return IRQ_HANDLED; -} - -/* - * Maintain an average of the last 10 readings - */ -#define SHARPSL_CNV_VALUE_NUM 10 -static int sharpsl_ad_index; - -static void sharpsl_average_clear(void) -{ - sharpsl_ad_index = 0; -} - -static int sharpsl_average_value(int ad) -{ - int i, ad_val = 0; - static int sharpsl_ad[SHARPSL_CNV_VALUE_NUM+1]; - - if (sharpsl_pm.battstat.mainbat_status != APM_BATTERY_STATUS_HIGH) { - sharpsl_ad_index = 0; - return ad; - } - - sharpsl_ad[sharpsl_ad_index] = ad; - sharpsl_ad_index++; - if (sharpsl_ad_index >= SHARPSL_CNV_VALUE_NUM) { - for (i=0; i < (SHARPSL_CNV_VALUE_NUM-1); i++) - sharpsl_ad[i] = sharpsl_ad[i+1]; - sharpsl_ad_index = SHARPSL_CNV_VALUE_NUM - 1; - } - for (i=0; i < sharpsl_ad_index; i++) - ad_val += sharpsl_ad[i]; - - return (ad_val / sharpsl_ad_index); -} - - /* * Read MAX1111 ADC */ -static int read_max1111(int channel) +int sharpsl_pm_pxa_read_max1111(int channel) { return corgi_ssp_max1111_get((channel << MAXCTRL_SEL_SH) | MAXCTRL_PD0 | MAXCTRL_PD1 | MAXCTRL_SGL | MAXCTRL_UNI | MAXCTRL_STR); } -static int sharpsl_read_main_battery(void) -{ - return read_max1111(BATT_AD); -} - -static int sharpsl_read_temp(void) +void sharpsl_pm_pxa_init(void) { - int temp; - - sharpsl_pm.machinfo->measure_temp(1); - - mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP); - temp = read_max1111(BATT_THM); - - sharpsl_pm.machinfo->measure_temp(0); - - return temp; -} - -static int sharpsl_read_acin(void) -{ - return read_max1111(JK_VAD); -} - -/* - * Take an array of 5 integers, remove the maximum and minimum values - * and return the average. - */ -static int get_select_val(int *val) -{ - int i, j, k, temp, sum = 0; - - /* Find MAX val */ - temp = val[0]; - j=0; - for (i=1; i<5; i++) { - if (temp < val[i]) { - temp = val[i]; - j = i; - } - } - - /* Find MIN val */ - temp = val[4]; - k=4; - for (i=3; i>=0; i--) { - if (temp > val[i]) { - temp = val[i]; - k = i; - } - } - - for (i=0; i<5; i++) - if (i != j && i != k ) - sum += val[i]; - - dev_dbg(sharpsl_pm.dev, "Average: %d from values: %d, %d, %d, %d, %d\n", sum/3, val[0], val[1], val[2], val[3], val[4]); - - return (sum/3); -} - -static int sharpsl_check_battery_temp(void) -{ - int val, i, buff[5]; - - /* Check battery temperature */ - for (i=0; i<5; i++) { - mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP); - buff[i] = sharpsl_read_temp(); - } - - val = get_select_val(buff); - - dev_dbg(sharpsl_pm.dev, "Temperature: %d\n", val); - if (val > SHARPSL_CHARGE_ON_TEMP) - return -1; - - return 0; -} - -static int sharpsl_check_battery_voltage(void) -{ - int val, i, buff[5]; - - /* disable charge, enable discharge */ - CHARGE_OFF(); - DISCHARGE_ON(); - mdelay(SHARPSL_WAIT_DISCHARGE_ON); - - if (sharpsl_pm.machinfo->discharge1) - sharpsl_pm.machinfo->discharge1(1); - - /* Check battery voltage */ - for (i=0; i<5; i++) { - buff[i] = sharpsl_read_main_battery(); - mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT); - } - - if (sharpsl_pm.machinfo->discharge1) - sharpsl_pm.machinfo->discharge1(0); - - DISCHARGE_OFF(); - - val = get_select_val(buff); - dev_dbg(sharpsl_pm.dev, "Battery Voltage: %d\n", val); - - if (val < SHARPSL_CHARGE_ON_VOLT) - return -1; - - return 0; -} - -static int sharpsl_ac_check(void) -{ - int temp, i, buff[5]; - - for (i=0; i<5; i++) { - buff[i] = sharpsl_read_acin(); - mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_ACIN); - } - - temp = get_select_val(buff); - dev_dbg(sharpsl_pm.dev, "AC Voltage: %d\n",temp); - - if ((temp > SHARPSL_CHARGE_ON_ACIN_HIGH) || (temp < SHARPSL_CHARGE_ON_ACIN_LOW)) { - dev_err(sharpsl_pm.dev, "Error: AC check failed.\n"); - return -1; - } - - return 0; -} - -#ifdef CONFIG_PM -static int sharpsl_pm_suspend(struct platform_device *pdev, pm_message_t state) -{ - sharpsl_pm.flags |= SHARPSL_SUSPENDED; - flush_scheduled_work(); - - if (sharpsl_pm.charge_mode == CHRG_ON) - sharpsl_pm.flags |= SHARPSL_DO_OFFLINE_CHRG; - else - sharpsl_pm.flags &= ~SHARPSL_DO_OFFLINE_CHRG; - - return 0; -} - -static int sharpsl_pm_resume(struct platform_device *pdev) -{ - /* Clear the reset source indicators as they break the bootloader upon reboot */ - RCSR = 0x0f; - sharpsl_average_clear(); - sharpsl_pm.flags &= ~SHARPSL_APM_QUEUED; - sharpsl_pm.flags &= ~SHARPSL_SUSPENDED; - - return 0; -} - -static void corgi_goto_sleep(unsigned long alarm_time, unsigned int alarm_enable, suspend_state_t state) -{ - dev_dbg(sharpsl_pm.dev, "Time is: %08x\n",RCNR); - - dev_dbg(sharpsl_pm.dev, "Offline Charge Activate = %d\n",sharpsl_pm.flags & SHARPSL_DO_OFFLINE_CHRG); - /* not charging and AC-IN! */ - - if ((sharpsl_pm.flags & SHARPSL_DO_OFFLINE_CHRG) && (STATUS_AC_IN() != 0)) { - dev_dbg(sharpsl_pm.dev, "Activating Offline Charger...\n"); - sharpsl_pm.charge_mode = CHRG_OFF; - sharpsl_pm.flags &= ~SHARPSL_DO_OFFLINE_CHRG; - sharpsl_off_charge_battery(); - } - - sharpsl_pm.machinfo->presuspend(); - - PEDR = 0xffffffff; /* clear it */ - - sharpsl_pm.flags &= ~SHARPSL_ALARM_ACTIVE; - if ((sharpsl_pm.charge_mode == CHRG_ON) && ((alarm_enable && ((alarm_time - RCNR) > (SHARPSL_BATCHK_TIME_SUSPEND + 30))) || !alarm_enable)) { - RTSR &= RTSR_ALE; - RTAR = RCNR + SHARPSL_BATCHK_TIME_SUSPEND; - dev_dbg(sharpsl_pm.dev, "Charging alarm at: %08x\n",RTAR); - sharpsl_pm.flags |= SHARPSL_ALARM_ACTIVE; - } else if (alarm_enable) { - RTSR &= RTSR_ALE; - RTAR = alarm_time; - dev_dbg(sharpsl_pm.dev, "User alarm at: %08x\n",RTAR); - } else { - dev_dbg(sharpsl_pm.dev, "No alarms set.\n"); - } - - pxa_pm_enter(state); - - sharpsl_pm.machinfo->postsuspend(); - - dev_dbg(sharpsl_pm.dev, "Corgi woken up from suspend: %08x\n",PEDR); -} - -static int corgi_enter_suspend(unsigned long alarm_time, unsigned int alarm_enable, suspend_state_t state) -{ - if (!sharpsl_pm.machinfo->should_wakeup(!(sharpsl_pm.flags & SHARPSL_ALARM_ACTIVE) && alarm_enable) ) - { - if (!(sharpsl_pm.flags & SHARPSL_ALARM_ACTIVE)) { - dev_dbg(sharpsl_pm.dev, "No user triggered wakeup events and not charging. Strange. Suspend.\n"); - corgi_goto_sleep(alarm_time, alarm_enable, state); - return 1; - } - if(sharpsl_off_charge_battery()) { - dev_dbg(sharpsl_pm.dev, "Charging. Suspend...\n"); - corgi_goto_sleep(alarm_time, alarm_enable, state); - return 1; - } - dev_dbg(sharpsl_pm.dev, "User triggered wakeup in offline charger.\n"); - } - - if ((STATUS_BATT_LOCKED() == 0) || (sharpsl_fatal_check() < 0) ) - { - dev_err(sharpsl_pm.dev, "Fatal condition. Suspend.\n"); - corgi_goto_sleep(alarm_time, alarm_enable, state); - return 1; - } - - return 0; -} - -static int corgi_pxa_pm_enter(suspend_state_t state) -{ - unsigned long alarm_time = RTAR; - unsigned int alarm_status = ((RTSR & RTSR_ALE) != 0); - - dev_dbg(sharpsl_pm.dev, "SharpSL suspending for first time.\n"); - - corgi_goto_sleep(alarm_time, alarm_status, state); - - while (corgi_enter_suspend(alarm_time,alarm_status,state)) - {} - - dev_dbg(sharpsl_pm.dev, "SharpSL resuming...\n"); - - return 0; -} -#endif - - -/* - * Check for fatal battery errors - * Fatal returns -1 - */ -static int sharpsl_fatal_check(void) -{ - int buff[5], temp, i, acin; - - dev_dbg(sharpsl_pm.dev, "sharpsl_fatal_check entered\n"); - - /* Check AC-Adapter */ - acin = STATUS_AC_IN(); - - if (acin && (sharpsl_pm.charge_mode == CHRG_ON)) { - CHARGE_OFF(); - udelay(100); - DISCHARGE_ON(); /* enable discharge */ - mdelay(SHARPSL_WAIT_DISCHARGE_ON); - } - - if (sharpsl_pm.machinfo->discharge1) - sharpsl_pm.machinfo->discharge1(1); - - /* Check battery : check inserting battery ? */ - for (i=0; i<5; i++) { - buff[i] = sharpsl_read_main_battery(); - mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT); - } - - if (sharpsl_pm.machinfo->discharge1) - sharpsl_pm.machinfo->discharge1(0); - - if (acin && (sharpsl_pm.charge_mode == CHRG_ON)) { - udelay(100); - CHARGE_ON(); - DISCHARGE_OFF(); - } - - temp = get_select_val(buff); - dev_dbg(sharpsl_pm.dev, "sharpsl_fatal_check: acin: %d, discharge voltage: %d, no discharge: %d\n", acin, temp, sharpsl_read_main_battery()); - - if ((acin && (temp < SHARPSL_FATAL_ACIN_VOLT)) || - (!acin && (temp < SHARPSL_FATAL_NOACIN_VOLT))) - return -1; - return 0; -} - -static int sharpsl_off_charge_error(void) -{ - dev_err(sharpsl_pm.dev, "Offline Charger: Error occured.\n"); - CHARGE_OFF(); - CHARGE_LED_ERR(); - sharpsl_pm.charge_mode = CHRG_ERROR; - return 1; -} - -/* - * Charging Control while suspended - * Return 1 - go straight to sleep - * Return 0 - sleep or wakeup depending on other factors - */ -static int sharpsl_off_charge_battery(void) -{ - int time; - - dev_dbg(sharpsl_pm.dev, "Charge Mode: %d\n", sharpsl_pm.charge_mode); - - if (sharpsl_pm.charge_mode == CHRG_OFF) { - dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 1\n"); - - /* AC Check */ - if ((sharpsl_ac_check() < 0) || (sharpsl_check_battery_temp() < 0)) - return sharpsl_off_charge_error(); - - /* Start Charging */ - CHARGE_LED_ON(); - CHARGE_OFF(); - mdelay(SHARPSL_CHARGE_WAIT_TIME); - CHARGE_ON(); - - sharpsl_pm.charge_mode = CHRG_ON; - sharpsl_pm.full_count = 0; - - return 1; - } else if (sharpsl_pm.charge_mode != CHRG_ON) { - return 1; - } - - if (sharpsl_pm.full_count == 0) { - int time; - - dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 2\n"); - - if ((sharpsl_check_battery_temp() < 0) || (sharpsl_check_battery_voltage() < 0)) - return sharpsl_off_charge_error(); - - CHARGE_OFF(); - mdelay(SHARPSL_CHARGE_WAIT_TIME); - CHARGE_ON(); - sharpsl_pm.charge_mode = CHRG_ON; - - mdelay(SHARPSL_CHARGE_CO_CHECK_TIME); - - time = RCNR; - while(1) { - /* Check if any wakeup event had occured */ - if (sharpsl_pm.machinfo->charger_wakeup() != 0) - return 0; - /* Check for timeout */ - if ((RCNR - time) > SHARPSL_WAIT_CO_TIME) - return 1; - if (STATUS_CHRG_FULL()) { - dev_dbg(sharpsl_pm.dev, "Offline Charger: Charge full occured. Retrying to check\n"); - sharpsl_pm.full_count++; - CHARGE_OFF(); - mdelay(SHARPSL_CHARGE_WAIT_TIME); - CHARGE_ON(); - return 1; - } - } - } - - dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 3\n"); - - mdelay(SHARPSL_CHARGE_CO_CHECK_TIME); - - time = RCNR; - while(1) { - /* Check if any wakeup event had occured */ - if (sharpsl_pm.machinfo->charger_wakeup() != 0) - return 0; - /* Check for timeout */ - if ((RCNR-time) > SHARPSL_WAIT_CO_TIME) { - if (sharpsl_pm.full_count > SHARPSL_CHARGE_RETRY_CNT) { - dev_dbg(sharpsl_pm.dev, "Offline Charger: Not charged sufficiently. Retrying.\n"); - sharpsl_pm.full_count = 0; - } - sharpsl_pm.full_count++; - return 1; - } - if (STATUS_CHRG_FULL()) { - dev_dbg(sharpsl_pm.dev, "Offline Charger: Charging complete.\n"); - CHARGE_LED_OFF(); - CHARGE_OFF(); - sharpsl_pm.charge_mode = CHRG_DONE; - return 1; - } - } -} - - -static ssize_t battery_percentage_show(struct device *dev, struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%d\n",sharpsl_pm.battstat.mainbat_percent); -} - -static ssize_t battery_voltage_show(struct device *dev, struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%d\n",sharpsl_pm.battstat.mainbat_voltage); -} - -static DEVICE_ATTR(battery_percentage, 0444, battery_percentage_show, NULL); -static DEVICE_ATTR(battery_voltage, 0444, battery_voltage_show, NULL); - -extern void (*apm_get_power_status)(struct apm_power_info *); - -static void sharpsl_apm_get_power_status(struct apm_power_info *info) -{ - info->ac_line_status = sharpsl_pm.battstat.ac_status; - - if (sharpsl_pm.charge_mode == CHRG_ON) - info->battery_status = APM_BATTERY_STATUS_CHARGING; - else - info->battery_status = sharpsl_pm.battstat.mainbat_status; - - info->battery_flag = (1 << info->battery_status); - info->battery_life = sharpsl_pm.battstat.mainbat_percent; -} - -static struct pm_ops sharpsl_pm_ops = { - .pm_disk_mode = PM_DISK_FIRMWARE, - .prepare = pxa_pm_prepare, - .enter = corgi_pxa_pm_enter, - .finish = pxa_pm_finish, -}; - -static int __init sharpsl_pm_probe(struct platform_device *pdev) -{ - if (!pdev->dev.platform_data) - return -EINVAL; - - sharpsl_pm.dev = &pdev->dev; - sharpsl_pm.machinfo = pdev->dev.platform_data; - sharpsl_pm.charge_mode = CHRG_OFF; - sharpsl_pm.flags = 0; - - sharpsl_pm.machinfo->init(); - - init_timer(&sharpsl_pm.ac_timer); - sharpsl_pm.ac_timer.function = sharpsl_ac_timer; - - init_timer(&sharpsl_pm.chrg_full_timer); - sharpsl_pm.chrg_full_timer.function = sharpsl_chrg_full_timer; - pxa_gpio_mode(sharpsl_pm.machinfo->gpio_acin | GPIO_IN); pxa_gpio_mode(sharpsl_pm.machinfo->gpio_batfull | GPIO_IN); pxa_gpio_mode(sharpsl_pm.machinfo->gpio_batlock | GPIO_IN); @@ -938,26 +165,10 @@ static int __init sharpsl_pm_probe(struct platform_device *pdev) } else set_irq_type(IRQ_GPIO(sharpsl_pm.machinfo->gpio_batfull),IRQT_RISING); } - - device_create_file(&pdev->dev, &dev_attr_battery_percentage); - device_create_file(&pdev->dev, &dev_attr_battery_voltage); - - apm_get_power_status = sharpsl_apm_get_power_status; - - pm_set_ops(&sharpsl_pm_ops); - - mod_timer(&sharpsl_pm.ac_timer, jiffies + msecs_to_jiffies(250)); - - return 0; } -static int sharpsl_pm_remove(struct platform_device *pdev) +void sharpsl_pm_pxa_remove(void) { - pm_set_ops(NULL); - - device_remove_file(&pdev->dev, &dev_attr_battery_percentage); - device_remove_file(&pdev->dev, &dev_attr_battery_voltage); - free_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_acin), sharpsl_ac_isr); free_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_batlock), sharpsl_fatal_isr); @@ -966,32 +177,4 @@ static int sharpsl_pm_remove(struct platform_device *pdev) if (!machine_is_corgi()) free_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_batfull), sharpsl_chrg_full_isr); - - del_timer_sync(&sharpsl_pm.chrg_full_timer); - del_timer_sync(&sharpsl_pm.ac_timer); - - return 0; } - -static struct platform_driver sharpsl_pm_driver = { - .probe = sharpsl_pm_probe, - .remove = sharpsl_pm_remove, - .suspend = sharpsl_pm_suspend, - .resume = sharpsl_pm_resume, - .driver = { - .name = "sharpsl-pm", - }, -}; - -static int __devinit sharpsl_pm_init(void) -{ - return platform_driver_register(&sharpsl_pm_driver); -} - -static void sharpsl_pm_exit(void) -{ - platform_driver_unregister(&sharpsl_pm_driver); -} - -late_initcall(sharpsl_pm_init); -module_exit(sharpsl_pm_exit); diff --git a/arch/arm/mach-pxa/spitz_pm.c b/arch/arm/mach-pxa/spitz_pm.c index 3ce7486daa5..76a5c26dea0 100644 --- a/arch/arm/mach-pxa/spitz_pm.c +++ b/arch/arm/mach-pxa/spitz_pm.c @@ -21,6 +21,7 @@ #include <asm/mach-types.h> #include <asm/hardware.h> #include <asm/hardware/scoop.h> +#include <asm/hardware/sharpsl_pm.h> #include <asm/arch/sharpsl.h> #include <asm/arch/spitz.h> @@ -33,19 +34,7 @@ static void spitz_charger_init(void) { pxa_gpio_mode(SPITZ_GPIO_KEY_INT | GPIO_IN); pxa_gpio_mode(SPITZ_GPIO_SYNC | GPIO_IN); -} - -static void spitz_charge_led(int val) -{ - if (val == SHARPSL_LED_ERROR) { - dev_dbg(sharpsl_pm.dev, "Charge LED Error\n"); - } else if (val == SHARPSL_LED_ON) { - dev_dbg(sharpsl_pm.dev, "Charge LED On\n"); - set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_ORANGE); - } else { - dev_dbg(sharpsl_pm.dev, "Charge LED Off\n"); - reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_ORANGE); - } + sharpsl_pm_pxa_init(); } static void spitz_measure_temp(int on) @@ -92,7 +81,7 @@ static void spitz_discharge1(int on) static void spitz_presuspend(void) { - spitz_last_ac_status = STATUS_AC_IN(); + spitz_last_ac_status = sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN); /* GPIO Sleep Register */ PGSR0 = 0x00144018; @@ -138,7 +127,7 @@ static void spitz_postsuspend(void) static int spitz_should_wakeup(unsigned int resume_on_alarm) { int is_resume = 0; - int acin = STATUS_AC_IN(); + int acin = sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN); if (spitz_last_ac_status != acin) { if (acin) { @@ -148,8 +137,8 @@ static int spitz_should_wakeup(unsigned int resume_on_alarm) } else { /* charge off */ dev_dbg(sharpsl_pm.dev, "AC Removed\n"); - CHARGE_LED_OFF(); - CHARGE_OFF(); + sharpsl_pm_led(SHARPSL_LED_OFF); + sharpsl_pm.machinfo->charge(0); sharpsl_pm.charge_mode = CHRG_OFF; } spitz_last_ac_status = acin; @@ -175,25 +164,41 @@ static unsigned long spitz_charger_wakeup(void) return (~GPLR0 & GPIO_bit(SPITZ_GPIO_KEY_INT)) | (GPLR0 & GPIO_bit(SPITZ_GPIO_SYNC)); } -static int spitz_acin_status(void) +unsigned long spitzpm_read_devdata(int type) { - return (((~GPLR(SPITZ_GPIO_AC_IN)) & GPIO_bit(SPITZ_GPIO_AC_IN)) != 0); + switch(type) { + case SHARPSL_STATUS_ACIN: + return (((~GPLR(SPITZ_GPIO_AC_IN)) & GPIO_bit(SPITZ_GPIO_AC_IN)) != 0); + case SHARPSL_STATUS_LOCK: + return READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_batlock); + case SHARPSL_STATUS_CHRGFULL: + return READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_batfull); + case SHARPSL_STATUS_FATAL: + return READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_fatal); + case SHARPSL_ACIN_VOLT: + return sharpsl_pm_pxa_read_max1111(MAX1111_ACIN_VOLT); + case SHARPSL_BATT_TEMP: + return sharpsl_pm_pxa_read_max1111(MAX1111_BATT_TEMP); + case SHARPSL_BATT_VOLT: + default: + return sharpsl_pm_pxa_read_max1111(MAX1111_BATT_VOLT); + } } struct sharpsl_charger_machinfo spitz_pm_machinfo = { .init = spitz_charger_init, + .exit = sharpsl_pm_pxa_remove, .gpio_batlock = SPITZ_GPIO_BAT_COVER, .gpio_acin = SPITZ_GPIO_AC_IN, .gpio_batfull = SPITZ_GPIO_CHRG_FULL, .gpio_fatal = SPITZ_GPIO_FATAL_BAT, - .status_acin = spitz_acin_status, .discharge = spitz_discharge, .discharge1 = spitz_discharge1, .charge = spitz_charge, - .chargeled = spitz_charge_led, .measure_temp = spitz_measure_temp, .presuspend = spitz_presuspend, .postsuspend = spitz_postsuspend, + .read_devdata = spitzpm_read_devdata, .charger_wakeup = spitz_charger_wakeup, .should_wakeup = spitz_should_wakeup, .bat_levels = 40, diff --git a/drivers/video/backlight/corgi_bl.c b/drivers/video/backlight/corgi_bl.c index 6a219b2c77e..d0aaf450e8c 100644 --- a/drivers/video/backlight/corgi_bl.c +++ b/drivers/video/backlight/corgi_bl.c @@ -20,6 +20,7 @@ #include <linux/backlight.h> #include <asm/arch/sharpsl.h> +#include <asm/hardware/sharpsl_pm.h> #define CORGI_DEFAULT_INTENSITY 0x1f #define CORGI_LIMIT_MASK 0x0b diff --git a/include/asm-arm/hardware/sharpsl_pm.h b/include/asm-arm/hardware/sharpsl_pm.h new file mode 100644 index 00000000000..36983e5f366 --- /dev/null +++ b/include/asm-arm/hardware/sharpsl_pm.h @@ -0,0 +1,94 @@ +/* + * SharpSL Battery/PM Driver + * + * Copyright (c) 2004-2005 Richard Purdie + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/interrupt.h> + +struct sharpsl_charger_machinfo { + void (*init)(void); + void (*exit)(void); + int gpio_acin; + int gpio_batfull; + int gpio_batlock; + int gpio_fatal; + void (*discharge)(int); + void (*discharge1)(int); + void (*charge)(int); + void (*measure_temp)(int); + void (*presuspend)(void); + void (*postsuspend)(void); + unsigned long (*read_devdata)(int); +#define SHARPSL_BATT_VOLT 1 +#define SHARPSL_BATT_TEMP 2 +#define SHARPSL_ACIN_VOLT 3 +#define SHARPSL_STATUS_ACIN 4 +#define SHARPSL_STATUS_LOCK 5 +#define SHARPSL_STATUS_CHRGFULL 6 +#define SHARPSL_STATUS_FATAL 7 + unsigned long (*charger_wakeup)(void); + int (*should_wakeup)(unsigned int resume_on_alarm); + int bat_levels; + struct battery_thresh *bat_levels_noac; + struct battery_thresh *bat_levels_acin; + int status_high_acin; + int status_low_acin; + int status_high_noac; + int status_low_noac; +}; + +struct battery_thresh { + int voltage; + int percentage; +}; + +struct battery_stat { + int ac_status; /* APM AC Present/Not Present */ + int mainbat_status; /* APM Main Battery Status */ + int mainbat_percent; /* Main Battery Percentage Charge */ + int mainbat_voltage; /* Main Battery Voltage */ +}; + +struct sharpsl_pm_status { + struct device *dev; + struct timer_list ac_timer; + struct timer_list chrg_full_timer; + + int charge_mode; +#define CHRG_ERROR (-1) +#define CHRG_OFF (0) +#define CHRG_ON (1) +#define CHRG_DONE (2) + + unsigned int flags; +#define SHARPSL_SUSPENDED (1 << 0) /* Device is Suspended */ +#define SHARPSL_ALARM_ACTIVE (1 << 1) /* Alarm is for charging event (not user) */ +#define SHARPSL_BL_LIMIT (1 << 2) /* Backlight Intensity Limited */ +#define SHARPSL_APM_QUEUED (1 << 3) /* APM Event Queued */ +#define SHARPSL_DO_OFFLINE_CHRG (1 << 4) /* Trigger the offline charger */ + + int full_count; + unsigned long charge_start_time; + struct sharpsl_charger_machinfo *machinfo; + struct battery_stat battstat; +}; + +extern struct sharpsl_pm_status sharpsl_pm; + + +#define SHARPSL_LED_ERROR 2 +#define SHARPSL_LED_ON 1 +#define SHARPSL_LED_OFF 0 + +void sharpsl_battery_kick(void); +void sharpsl_pm_led(int val); +irqreturn_t sharpsl_ac_isr(int irq, void *dev_id, struct pt_regs *fp); +irqreturn_t sharpsl_chrg_full_isr(int irq, void *dev_id, struct pt_regs *fp); +irqreturn_t sharpsl_fatal_isr(int irq, void *dev_id, struct pt_regs *fp); + |