--- /dev/null
+/*
+ * Battery and Power Management code for the Sharp SL-C7xx
+ *
+ * Copyright (c) 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/module.h>
+#include <linux/stat.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <asm/apm.h>
+#include <asm/irq.h>
+#include <asm/mach-types.h>
+#include <asm/hardware.h>
+#include <asm/hardware/scoop.h>
+
+#include <asm/arch/sharpsl.h>
+#include <asm/arch/corgi.h>
+#include <asm/arch/pxa-regs.h>
+#include "sharpsl.h"
+
+static void corgi_charger_init(void)
+{
+ pxa_gpio_mode(CORGI_GPIO_ADC_TEMP_ON | GPIO_OUT);
+ 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);
+ sharpsl_pm_pxa_init();
+}
+
+static void corgi_measure_temp(int on)
+{
+ if (on)
+ GPSR(CORGI_GPIO_ADC_TEMP_ON) = GPIO_bit(CORGI_GPIO_ADC_TEMP_ON);
+ else
+ GPCR(CORGI_GPIO_ADC_TEMP_ON) = GPIO_bit(CORGI_GPIO_ADC_TEMP_ON);
+}
+
+static void corgi_charge(int on)
+{
+ if (on) {
+ if (machine_is_corgi() && (sharpsl_pm.flags & SHARPSL_SUSPENDED)) {
+ GPCR(CORGI_GPIO_CHRG_ON) = GPIO_bit(CORGI_GPIO_CHRG_ON);
+ GPSR(CORGI_GPIO_CHRG_UKN) = GPIO_bit(CORGI_GPIO_CHRG_UKN);
+ } else {
+ GPSR(CORGI_GPIO_CHRG_ON) = GPIO_bit(CORGI_GPIO_CHRG_ON);
+ GPCR(CORGI_GPIO_CHRG_UKN) = GPIO_bit(CORGI_GPIO_CHRG_UKN);
+ }
+ } else {
+ GPCR(CORGI_GPIO_CHRG_ON) = GPIO_bit(CORGI_GPIO_CHRG_ON);
+ GPCR(CORGI_GPIO_CHRG_UKN) = GPIO_bit(CORGI_GPIO_CHRG_UKN);
+ }
+}
+
+static void corgi_discharge(int on)
+{
+ if (on)
+ GPSR(CORGI_GPIO_DISCHARGE_ON) = GPIO_bit(CORGI_GPIO_DISCHARGE_ON);
+ else
+ GPCR(CORGI_GPIO_DISCHARGE_ON) = GPIO_bit(CORGI_GPIO_DISCHARGE_ON);
+}
+
+static void corgi_presuspend(void)
+{
+ int i;
+ unsigned long wakeup_mask;
+
+ /* charging , so CHARGE_ON bit is HIGH during OFF. */
+ if (READ_GPIO_BIT(CORGI_GPIO_CHRG_ON))
+ PGSR1 |= GPIO_bit(CORGI_GPIO_CHRG_ON);
+ else
+ PGSR1 &= ~GPIO_bit(CORGI_GPIO_CHRG_ON);
+
+ if (READ_GPIO_BIT(CORGI_GPIO_LED_ORANGE))
+ PGSR0 |= GPIO_bit(CORGI_GPIO_LED_ORANGE);
+ else
+ PGSR0 &= ~GPIO_bit(CORGI_GPIO_LED_ORANGE);
+
+ if (READ_GPIO_BIT(CORGI_GPIO_CHRG_UKN))
+ PGSR1 |= GPIO_bit(CORGI_GPIO_CHRG_UKN);
+ else
+ PGSR1 &= ~GPIO_bit(CORGI_GPIO_CHRG_UKN);
+
+ /* Resume on keyboard power key */
+ PGSR2 = (PGSR2 & ~CORGI_GPIO_ALL_STROBE_BIT) | CORGI_GPIO_STROBE_BIT(0);
+
+ 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);
+
+ if (!machine_is_corgi())
+ wakeup_mask |= GPIO_bit(CORGI_GPIO_MAIN_BAT_LOW);
+
+ PWER = wakeup_mask | PWER_RTC;
+ PRER = wakeup_mask;
+ PFER = wakeup_mask;
+
+ for (i = 0; i <=15; i++) {
+ if (PRER & PFER & GPIO_bit(i)) {
+ if (GPLR0 & GPIO_bit(i) )
+ PRER &= ~GPIO_bit(i);
+ else
+ PFER &= ~GPIO_bit(i);
+ }
+ }
+}
+
+static void corgi_postsuspend(void)
+{
+}
+
+/*
+ * Check what brought us out of the suspend.
+ * Return: 0 to sleep, otherwise wake
+ */
+static int corgi_should_wakeup(unsigned int resume_on_alarm)
+{
+ int is_resume = 0;
+
+ dev_dbg(sharpsl_pm.dev, "GPLR0 = %x,%x\n", GPLR0, PEDR);
+
+ if ((PEDR & GPIO_bit(CORGI_GPIO_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");
+ sharpsl_pm_led(SHARPSL_LED_OFF);
+ sharpsl_pm.machinfo->charge(0);
+ sharpsl_pm.charge_mode = CHRG_OFF;
+ }
+ }
+
+ if ((PEDR & GPIO_bit(CORGI_GPIO_CHRG_FULL)))
+ dev_dbg(sharpsl_pm.dev, "Charge full interrupt\n");
+
+ if (PEDR & GPIO_bit(CORGI_GPIO_KEY_INT))
+ is_resume |= GPIO_bit(CORGI_GPIO_KEY_INT);
+
+ if (PEDR & GPIO_bit(CORGI_GPIO_WAKEUP))
+ is_resume |= GPIO_bit(CORGI_GPIO_WAKEUP);
+
+ if (resume_on_alarm && (PEDR & PWER_RTC))
+ is_resume |= PWER_RTC;
+
+ dev_dbg(sharpsl_pm.dev, "is_resume: %x\n",is_resume);
+ return is_resume;
+}
+
+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) );
+}
+
+unsigned long corgipm_read_devdata(int type)
+{
+ 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,
+ .discharge = corgi_discharge,
+ .charge = corgi_charge,
+ .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,
+ .bat_levels_noac = spitz_battery_levels_noac,
+ .bat_levels_acin = spitz_battery_levels_acin,
+ .status_high_acin = 188,
+ .status_low_acin = 178,
+ .status_high_noac = 185,
+ .status_low_noac = 175,
+};
+
+static struct platform_device *corgipm_device;
+
+static int __devinit corgipm_init(void)
+{
+ int ret;
+
+ corgipm_device = platform_device_alloc("sharpsl-pm", -1);
+ if (!corgipm_device)
+ return -ENOMEM;
+
+ corgipm_device->dev.platform_data = &corgi_pm_machinfo;
+ ret = platform_device_add(corgipm_device);
+
+ if (ret)
+ platform_device_put(corgipm_device);
+
+ return ret;
+}
+
+static void corgipm_exit(void)
+{
+ platform_device_unregister(corgipm_device);
+}
+
+module_init(corgipm_init);
+module_exit(corgipm_exit);
git://git.onelab.eu / linux-2.6.git / blobdiff