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51c62982a3
Considering the header mess ATM, it is not always possible to include
the correct header files within board code. Let's keep this simple:
<mach/pxa25x.h> - for pxa25x based platforms
<mach/pxa27x.h> - for pxa27x based platforms
<mach/pxa300.h> - for pxa300 based platforms
<mach/pxa320.h> - for pxa320 based platforms
<mach/pxa930.h> - for pxa930 based platforms
NOTE:
1. one header one board file, they are not compatible (i.e. they have
conflicting definitions which won't compile if included together).
2. Unless strictly necessary, the following header files are considered
to be SoC files use _only_, and is not recommended to be included in
board code:
<mach/hardware.h>
<mach/pxa-regs.h>
<mach/pxa2xx-regs.h>
<mach/pxa3xx-regs.h>
<mach/mfp.h>
<mach/mfp-pxa2xx.h>
<mach/mfp-pxa25x.h>
<mach/mfp-pxa27x.h>
<mach/mfp-pxa3xx.h>
<mach/mfp-pxa300.h>
<mach/mfp-pxa320.h>
<mach/mfp-pxa930.h>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
259 lines
7.0 KiB
C
259 lines
7.0 KiB
C
/*
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* Battery and Power Management code for the Sharp SL-C7xx
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*
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* Copyright (c) 2005 Richard Purdie
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/module.h>
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#include <linux/stat.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/platform_device.h>
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#include <linux/apm-emulation.h>
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#include <asm/irq.h>
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#include <asm/mach-types.h>
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#include <mach/hardware.h>
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#include <mach/sharpsl.h>
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#include <mach/corgi.h>
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#include <mach/pxa2xx-regs.h>
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#include <mach/pxa2xx-gpio.h>
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#include "sharpsl.h"
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#define SHARPSL_CHARGE_ON_VOLT 0x99 /* 2.9V */
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#define SHARPSL_CHARGE_ON_TEMP 0xe0 /* 2.9V */
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#define SHARPSL_CHARGE_ON_ACIN_HIGH 0x9b /* 6V */
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#define SHARPSL_CHARGE_ON_ACIN_LOW 0x34 /* 2V */
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#define SHARPSL_FATAL_ACIN_VOLT 182 /* 3.45V */
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#define SHARPSL_FATAL_NOACIN_VOLT 170 /* 3.40V */
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static void corgi_charger_init(void)
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{
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pxa_gpio_mode(CORGI_GPIO_ADC_TEMP_ON | GPIO_OUT);
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pxa_gpio_mode(CORGI_GPIO_CHRG_ON | GPIO_OUT);
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pxa_gpio_mode(CORGI_GPIO_CHRG_UKN | GPIO_OUT);
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pxa_gpio_mode(CORGI_GPIO_KEY_INT | GPIO_IN);
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sharpsl_pm_pxa_init();
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}
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static void corgi_measure_temp(int on)
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{
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if (on)
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GPSR(CORGI_GPIO_ADC_TEMP_ON) = GPIO_bit(CORGI_GPIO_ADC_TEMP_ON);
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else
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GPCR(CORGI_GPIO_ADC_TEMP_ON) = GPIO_bit(CORGI_GPIO_ADC_TEMP_ON);
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}
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static void corgi_charge(int on)
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{
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if (on) {
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if (machine_is_corgi() && (sharpsl_pm.flags & SHARPSL_SUSPENDED)) {
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GPCR(CORGI_GPIO_CHRG_ON) = GPIO_bit(CORGI_GPIO_CHRG_ON);
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GPSR(CORGI_GPIO_CHRG_UKN) = GPIO_bit(CORGI_GPIO_CHRG_UKN);
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} else {
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GPSR(CORGI_GPIO_CHRG_ON) = GPIO_bit(CORGI_GPIO_CHRG_ON);
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GPCR(CORGI_GPIO_CHRG_UKN) = GPIO_bit(CORGI_GPIO_CHRG_UKN);
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}
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} else {
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GPCR(CORGI_GPIO_CHRG_ON) = GPIO_bit(CORGI_GPIO_CHRG_ON);
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GPCR(CORGI_GPIO_CHRG_UKN) = GPIO_bit(CORGI_GPIO_CHRG_UKN);
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}
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}
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static void corgi_discharge(int on)
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{
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if (on)
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GPSR(CORGI_GPIO_DISCHARGE_ON) = GPIO_bit(CORGI_GPIO_DISCHARGE_ON);
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else
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GPCR(CORGI_GPIO_DISCHARGE_ON) = GPIO_bit(CORGI_GPIO_DISCHARGE_ON);
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}
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static void corgi_presuspend(void)
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{
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int i;
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unsigned long wakeup_mask;
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/* charging , so CHARGE_ON bit is HIGH during OFF. */
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if (READ_GPIO_BIT(CORGI_GPIO_CHRG_ON))
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PGSR1 |= GPIO_bit(CORGI_GPIO_CHRG_ON);
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else
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PGSR1 &= ~GPIO_bit(CORGI_GPIO_CHRG_ON);
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if (READ_GPIO_BIT(CORGI_GPIO_LED_ORANGE))
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PGSR0 |= GPIO_bit(CORGI_GPIO_LED_ORANGE);
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else
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PGSR0 &= ~GPIO_bit(CORGI_GPIO_LED_ORANGE);
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if (READ_GPIO_BIT(CORGI_GPIO_CHRG_UKN))
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PGSR1 |= GPIO_bit(CORGI_GPIO_CHRG_UKN);
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else
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PGSR1 &= ~GPIO_bit(CORGI_GPIO_CHRG_UKN);
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/* Resume on keyboard power key */
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PGSR2 = (PGSR2 & ~CORGI_GPIO_ALL_STROBE_BIT) | CORGI_GPIO_STROBE_BIT(0);
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wakeup_mask = GPIO_bit(CORGI_GPIO_KEY_INT) | GPIO_bit(CORGI_GPIO_WAKEUP) | GPIO_bit(CORGI_GPIO_AC_IN) | GPIO_bit(CORGI_GPIO_CHRG_FULL);
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if (!machine_is_corgi())
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wakeup_mask |= GPIO_bit(CORGI_GPIO_MAIN_BAT_LOW);
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PWER = wakeup_mask | PWER_RTC;
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PRER = wakeup_mask;
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PFER = wakeup_mask;
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for (i = 0; i <=15; i++) {
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if (PRER & PFER & GPIO_bit(i)) {
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if (GPLR0 & GPIO_bit(i) )
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PRER &= ~GPIO_bit(i);
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else
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PFER &= ~GPIO_bit(i);
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}
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}
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}
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static void corgi_postsuspend(void)
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{
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}
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/*
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* Check what brought us out of the suspend.
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* Return: 0 to sleep, otherwise wake
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*/
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static int corgi_should_wakeup(unsigned int resume_on_alarm)
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{
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int is_resume = 0;
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dev_dbg(sharpsl_pm.dev, "GPLR0 = %x,%x\n", GPLR0, PEDR);
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if ((PEDR & GPIO_bit(CORGI_GPIO_AC_IN))) {
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if (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN)) {
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/* charge on */
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dev_dbg(sharpsl_pm.dev, "ac insert\n");
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sharpsl_pm.flags |= SHARPSL_DO_OFFLINE_CHRG;
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} else {
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/* charge off */
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dev_dbg(sharpsl_pm.dev, "ac remove\n");
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sharpsl_pm_led(SHARPSL_LED_OFF);
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sharpsl_pm.machinfo->charge(0);
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sharpsl_pm.charge_mode = CHRG_OFF;
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}
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}
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if ((PEDR & GPIO_bit(CORGI_GPIO_CHRG_FULL)))
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dev_dbg(sharpsl_pm.dev, "Charge full interrupt\n");
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if (PEDR & GPIO_bit(CORGI_GPIO_KEY_INT))
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is_resume |= GPIO_bit(CORGI_GPIO_KEY_INT);
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if (PEDR & GPIO_bit(CORGI_GPIO_WAKEUP))
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is_resume |= GPIO_bit(CORGI_GPIO_WAKEUP);
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if (resume_on_alarm && (PEDR & PWER_RTC))
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is_resume |= PWER_RTC;
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dev_dbg(sharpsl_pm.dev, "is_resume: %x\n",is_resume);
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return is_resume;
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}
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static unsigned long corgi_charger_wakeup(void)
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{
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return ~GPLR0 & ( GPIO_bit(CORGI_GPIO_AC_IN) | GPIO_bit(CORGI_GPIO_KEY_INT) | GPIO_bit(CORGI_GPIO_WAKEUP) );
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}
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unsigned long corgipm_read_devdata(int type)
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{
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switch(type) {
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case SHARPSL_STATUS_ACIN:
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return ((GPLR(CORGI_GPIO_AC_IN) & GPIO_bit(CORGI_GPIO_AC_IN)) != 0);
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case SHARPSL_STATUS_LOCK:
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return READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_batlock);
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case SHARPSL_STATUS_CHRGFULL:
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return READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_batfull);
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case SHARPSL_STATUS_FATAL:
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return READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_fatal);
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case SHARPSL_ACIN_VOLT:
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return sharpsl_pm_pxa_read_max1111(MAX1111_ACIN_VOLT);
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case SHARPSL_BATT_TEMP:
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return sharpsl_pm_pxa_read_max1111(MAX1111_BATT_TEMP);
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case SHARPSL_BATT_VOLT:
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default:
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return sharpsl_pm_pxa_read_max1111(MAX1111_BATT_VOLT);
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}
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}
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static struct sharpsl_charger_machinfo corgi_pm_machinfo = {
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.init = corgi_charger_init,
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.exit = sharpsl_pm_pxa_remove,
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.gpio_batlock = CORGI_GPIO_BAT_COVER,
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.gpio_acin = CORGI_GPIO_AC_IN,
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.gpio_batfull = CORGI_GPIO_CHRG_FULL,
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.discharge = corgi_discharge,
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.charge = corgi_charge,
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.measure_temp = corgi_measure_temp,
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.presuspend = corgi_presuspend,
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.postsuspend = corgi_postsuspend,
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.read_devdata = corgipm_read_devdata,
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.charger_wakeup = corgi_charger_wakeup,
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.should_wakeup = corgi_should_wakeup,
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#if defined(CONFIG_LCD_CORGI)
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.backlight_limit = corgi_lcd_limit_intensity,
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#elif defined(CONFIG_BACKLIGHT_CORGI)
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.backlight_limit = corgibl_limit_intensity,
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#endif
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.charge_on_volt = SHARPSL_CHARGE_ON_VOLT,
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.charge_on_temp = SHARPSL_CHARGE_ON_TEMP,
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.charge_acin_high = SHARPSL_CHARGE_ON_ACIN_HIGH,
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.charge_acin_low = SHARPSL_CHARGE_ON_ACIN_LOW,
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.fatal_acin_volt = SHARPSL_FATAL_ACIN_VOLT,
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.fatal_noacin_volt= SHARPSL_FATAL_NOACIN_VOLT,
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.bat_levels = 40,
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.bat_levels_noac = spitz_battery_levels_noac,
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.bat_levels_acin = spitz_battery_levels_acin,
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.status_high_acin = 188,
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.status_low_acin = 178,
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.status_high_noac = 185,
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.status_low_noac = 175,
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};
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static struct platform_device *corgipm_device;
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static int __devinit corgipm_init(void)
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{
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int ret;
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if (!machine_is_corgi() && !machine_is_shepherd()
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&& !machine_is_husky())
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return -ENODEV;
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corgipm_device = platform_device_alloc("sharpsl-pm", -1);
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if (!corgipm_device)
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return -ENOMEM;
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if (!machine_is_corgi())
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corgi_pm_machinfo.batfull_irq = 1;
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corgipm_device->dev.platform_data = &corgi_pm_machinfo;
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ret = platform_device_add(corgipm_device);
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if (ret)
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platform_device_put(corgipm_device);
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return ret;
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}
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static void corgipm_exit(void)
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{
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platform_device_unregister(corgipm_device);
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}
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module_init(corgipm_init);
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module_exit(corgipm_exit);
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