diff options
Diffstat (limited to 'arch/sh/boards/hp6xx/hp6xx_apm.c')
| -rw-r--r-- | arch/sh/boards/hp6xx/hp6xx_apm.c | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/arch/sh/boards/hp6xx/hp6xx_apm.c b/arch/sh/boards/hp6xx/hp6xx_apm.c deleted file mode 100644 index d1c1460c8a0..00000000000 --- a/arch/sh/boards/hp6xx/hp6xx_apm.c +++ /dev/null @@ -1,102 +0,0 @@ -/* - * bios-less APM driver for hp680 - * - * Copyright 2005 (c) Andriy Skulysh <askulysh@gmail.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License. - */ -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/apm-emulation.h> -#include <linux/io.h> -#include <asm/adc.h> -#include <asm/hp6xx.h> - -#define SH7709_PGDR 0xa400012c - -#define APM_CRITICAL 10 -#define APM_LOW 30 - -#define HP680_BATTERY_MAX 875 -#define HP680_BATTERY_MIN 600 -#define HP680_BATTERY_AC_ON 900 - -#define MODNAME "hp6x0_apm" - -static void hp6x0_apm_get_power_status(struct apm_power_info *info) -{ - int battery, backup, charging, percentage; - u8 pgdr; - - battery = adc_single(ADC_CHANNEL_BATTERY); - backup = adc_single(ADC_CHANNEL_BACKUP); - charging = adc_single(ADC_CHANNEL_CHARGE); - - percentage = 100 * (battery - HP680_BATTERY_MIN) / - (HP680_BATTERY_MAX - HP680_BATTERY_MIN); - - info->ac_line_status = (battery > HP680_BATTERY_AC_ON) ? - APM_AC_ONLINE : APM_AC_OFFLINE; - - pgdr = ctrl_inb(SH7709_PGDR); - if (pgdr & PGDR_MAIN_BATTERY_OUT) { - info->battery_status = APM_BATTERY_STATUS_NOT_PRESENT; - info->battery_flag = 0x80; - } else if (charging < 8) { - info->battery_status = APM_BATTERY_STATUS_CHARGING; - info->battery_flag = 0x08; - info->ac_line_status = 0xff; - } else if (percentage <= APM_CRITICAL) { - info->battery_status = APM_BATTERY_STATUS_CRITICAL; - info->battery_flag = 0x04; - } else if (percentage <= APM_LOW) { - info->battery_status = APM_BATTERY_STATUS_LOW; - info->battery_flag = 0x02; - } else { - info->battery_status = APM_BATTERY_STATUS_HIGH; - info->battery_flag = 0x01; - } - - info->units = 0; -} - -static irqreturn_t hp6x0_apm_interrupt(int irq, void *dev) -{ - if (!apm_suspended) - apm_queue_event(APM_USER_SUSPEND); - - return IRQ_HANDLED; -} - -static int __init hp6x0_apm_init(void) -{ - int ret; - - ret = request_irq(HP680_BTN_IRQ, hp6x0_apm_interrupt, - IRQF_DISABLED, MODNAME, NULL); - if (unlikely(ret < 0)) { - printk(KERN_ERR MODNAME ": IRQ %d request failed\n", - HP680_BTN_IRQ); - return ret; - } - - apm_get_power_status = hp6x0_apm_get_power_status; - - return ret; -} - -static void __exit hp6x0_apm_exit(void) -{ - free_irq(HP680_BTN_IRQ, 0); - apm_get_info = NULL; -} - -module_init(hp6x0_apm_init); -module_exit(hp6x0_apm_exit); - -MODULE_AUTHOR("Adriy Skulysh"); -MODULE_DESCRIPTION("hp6xx Advanced Power Management"); -MODULE_LICENSE("GPL"); |