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[Hackndev-commit] SF.net SVN: hackndev: [1347] linux4palm/linux/trunk/arch/arm/mach-pxa/ palmz72/palmz72_battery.c
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From: <z7...@us...> - 2007-09-27 13:12:39
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Revision: 1347
http://hackndev.svn.sourceforge.net/hackndev/?rev=1347&view=rev
Author: z72ka
Date: 2007-09-27 06:12:35 -0700 (Thu, 27 Sep 2007)
Log Message:
-----------
palmz72: removed old palmz72_battery driver
Removed Paths:
-------------
linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/palmz72_battery.c
Deleted: linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/palmz72_battery.c
===================================================================
--- linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/palmz72_battery.c 2007-09-27 13:02:11 UTC (rev 1346)
+++ linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/palmz72_battery.c 2007-09-27 13:12:35 UTC (rev 1347)
@@ -1,298 +0,0 @@
-/************************************************************************
- * linux/arch/arm/mach-pxa/palmz72/palmz72_battery.c *
- * *
- * Touchscreen/battery driver for Palm Zire 72 WM9712 AC97 codec *
- * Authos: Jan Herman <2h...@se...> *
- * Sergey Lapin <sl...@ha...> *
- * *
- ************************************************************************/
-
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/input.h>
-#include <linux/device.h>
-#include <linux/workqueue.h>
-#include <linux/power_supply.h>
-#include <linux/apm-emulation.h>
-#include <linux/wm97xx.h>
-
-#include <asm/delay.h>
-#include <asm/mach-types.h>
-#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-#include <asm/arch/hardware.h>
-#include <asm/arch/pxa-regs.h>
-#include <asm/arch/irqs.h>
-#include <asm/arch/palmz72-gpio.h>
-#include <asm/arch/palmz72-init.h>
-
-#include <sound/driver.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/initval.h>
-#include <linux/wm97xx.h>
-#include <asm/arch/palmz72-gpio.h>
-#include <asm/arch/palmz72-init.h>
-
-
-struct palmz72_battery_dev
-{
- struct wm97xx * wm;
- int battery_registered;
- int current_voltage;
- int previous_voltage;
- u32 last_battery_update;
-};
-
-struct palmz72_battery_dev bat;
-
-#if defined(CONFIG_APM_EMULATION) || defined(CONFIG_APM_MODULE)
-/* original APM hook */
-static void (*apm_get_power_status_orig)(struct apm_power_info *info);
-#endif
-
-int palmz72_battery_min_voltage(struct power_supply *b)
-{
- return PALMZ72_BAT_MIN_VOLTAGE;
-}
-
-
-int palmz72_battery_max_voltage(struct power_supply *b)
-{
- return PALMZ72_BAT_MAX_VOLTAGE; /* mV */
-}
-
-/*
- This formula is based on battery life of my battery 1100mAh. Original battery in Zire72 is Li-On 920mAh
- V_batt = ADCSEL_BMON * 1,889 + 767,8 [mV]
-*/
-
-int palmz72_battery_get_voltage(struct power_supply *b)
-{
- if (bat.battery_registered){
- bat.previous_voltage = bat.current_voltage;
- bat.current_voltage = wm97xx_read_aux_adc(bat.wm, WM97XX_AUX_ID3);
- bat.last_battery_update = jiffies;
- return bat.current_voltage * 1889/1000 + 7678/10;
- }
- else{
- printk("palmz72_battery: cannot get voltage -> battery driver unregistered\n");
- return 0;
- }
-}
-
-int palmz72_battery_get_capacity(struct power_supply *b)
-{
- if (bat.battery_registered){
- return (((palmz72_battery_get_voltage(b)-palmz72_battery_min_voltage(b))
- /(palmz72_battery_max_voltage(b)-palmz72_battery_min_voltage(b)))*100);
- }
- else{
- printk("palmz72_battery: cannot get capacity -> battery driver unregistered\n");
- return 0;
- }
-}
-
-int palmz72_battery_get_status(struct power_supply *b)
-{
- int ac_connected = GET_PALMZ72_GPIO(POWER_DETECT);
- int usb_connected = !GET_PALMZ72_GPIO(USB_DETECT);
-
- if ( (ac_connected || usb_connected) &&
- ( ( bat.current_voltage > bat.previous_voltage ) ||
- (bat.current_voltage <= PALMZ72_BAT_MAX_VOLTAGE) ) )
- return POWER_SUPPLY_STATUS_CHARGING;
- else
- return POWER_SUPPLY_STATUS_NOT_CHARGING;
-}
-
-int tmp;
-
-static int palmz72_battery_get_property(struct power_supply *b,
- enum power_supply_property psp,
- union power_supply_propval *val)
-{
- switch (psp) {
- case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
- val->intval = palmz72_battery_max_voltage(b);
- break;
- case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
- val->intval = palmz72_battery_min_voltage(b);
- break;
- case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
- val->intval = 100;
- break;
- case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN:
- val->intval = 0;
- break;
- case POWER_SUPPLY_PROP_CHARGE_NOW:
- val->intval = palmz72_battery_get_capacity(b);
- break;
- case POWER_SUPPLY_PROP_VOLTAGE_NOW:
- val->intval = palmz72_battery_get_voltage(b);
- break;
- case POWER_SUPPLY_PROP_STATUS:
- val->intval = palmz72_battery_get_status(b);
- break;
- default:
- break;
- };
-
- return 0;
-}
-
-static enum power_supply_property palmz72_battery_props[] = {
- POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
- POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
- POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
- POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN,
- POWER_SUPPLY_PROP_CHARGE_NOW,
- POWER_SUPPLY_PROP_VOLTAGE_NOW,
- POWER_SUPPLY_PROP_STATUS,
-};
-
-struct power_supply palmz72_battery = {
- .name = "palmz72_battery",
- .get_property = palmz72_battery_get_property,
- .properties = palmz72_battery_props,
- .num_properties = ARRAY_SIZE(palmz72_battery_props),
-};
-
-static int palmz72_wm97xx_probe(struct device *dev)
-{
- struct wm97xx *wm = dev->driver_data;
- bat.wm = wm;
- return 0;
-}
-
-static int palmz72_wm97xx_remove(struct device *dev)
-{
- return 0;
-}
-
-static void
-palmz72_wm97xx_shutdown(struct device *dev)
-{
-#if defined(CONFIG_APM_EMULATION) || defined(CONFIG_APM_MODULE)
- apm_get_power_status = apm_get_power_status_orig;
-#endif
-}
-
-static int
-palmz72_wm97xx_suspend(struct device *dev, pm_message_t state)
-{
- return 0;
-}
-
-static int
-palmz72_wm97xx_resume(struct device *dev)
-{
- return 0;
-}
-
-
-static struct device_driver palmz72_wm97xx_driver = {
- .name = "wm97xx-touchscreen",
- .bus = &wm97xx_bus_type,
- .owner = THIS_MODULE,
- .probe = palmz72_wm97xx_probe,
- .remove = palmz72_wm97xx_remove,
- .suspend = palmz72_wm97xx_suspend,
- .resume = palmz72_wm97xx_resume,
- .shutdown = palmz72_wm97xx_shutdown
-};
-
-static int palmz72_ac_is_connected (void){
- /* when charger is plugged in and USB is not connected, then status is ONLINE */
- int ret = (!(GET_GPIO(GPIO_NR_PALMZ72_USB_PULLUP)) && !(GET_GPIO(GPIO_NR_PALMZ72_USB_DETECT)));;
- if (ret)
- ret = 1;
- else
- ret = 0;
-
- return ret;
-}
-
-#if defined(CONFIG_APM_EMULATION) || defined(CONFIG_APM_MODULE)
-
-/* APM status query callback implementation */
-static void palmz72_apm_get_power_status(struct apm_power_info *info)
-{
- int min, max, curr, percent;
-
- curr = palmz72_battery_get_voltage(&palmz72_battery);
- min = palmz72_battery_min_voltage(&palmz72_battery);
- max = palmz72_battery_max_voltage(&palmz72_battery);
-
- curr = curr - min;
- if (curr < 0) curr = 0;
- max = max - min;
-
- percent = curr*100/max;
-
- info->battery_life = percent;
-
- info->ac_line_status = palmz72_ac_is_connected() ? APM_AC_ONLINE : APM_AC_OFFLINE;
-
- if (info->ac_line_status) {
- info->battery_status = APM_BATTERY_STATUS_CHARGING;
- } else {
- if (percent > 50)
- info->battery_status = APM_BATTERY_STATUS_HIGH;
- else if (percent < 5)
- info->battery_status = APM_BATTERY_STATUS_CRITICAL;
- else
- info->battery_status = APM_BATTERY_STATUS_LOW;
- }
-
- info->time = percent * PALMZ72_MAX_LIFE_MINS/100;
- info->units = APM_UNITS_MINS;
-}
-#endif
-static int __init palmz72_wm97xx_init(void)
-{
-#ifndef MODULE
- int ret;
-#endif
-
- /* register battery to APM layer */
- bat.battery_registered = 0;
-
- if(power_supply_register(NULL, &palmz72_battery)) {
- printk(KERN_ERR "palmz72_ac97_probe: could not register battery class\n");
- }
- else {
- bat.battery_registered = 1;
- printk("Battery registered\n");
- }
-#if defined(CONFIG_APM_EMULATION) || defined(CONFIG_APM_MODULE)
- apm_get_power_status_orig = apm_get_power_status;
- apm_get_power_status = palmz72_apm_get_power_status;
-#endif
-#ifndef MODULE
- /* If we're in kernel, we could accidentally be run before wm97xx
- and thus have panic */
- if((ret = bus_register(&wm97xx_bus_type)) < 0)
- return ret;
-#endif
- return driver_register(&palmz72_wm97xx_driver);
-}
-
-static void __exit palmz72_wm97xx_exit(void)
-{
-/* TODO - recover APM callback to original state */
- power_supply_unregister(&palmz72_battery);
- driver_unregister(&palmz72_wm97xx_driver);
-}
-
-module_init(palmz72_wm97xx_init);
-module_exit(palmz72_wm97xx_exit);
-
-/* Module information */
-MODULE_AUTHOR("Sergey Lapin <sl...@ha...> Jan Herman <2h...@se...>");
-MODULE_DESCRIPTION("wm97xx battery driver for Palm Zire 72");
-MODULE_LICENSE("GPL");
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