patch-2.4.6 linux/drivers/acpi/power.c

• Lines: 138
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.5/linux/drivers/acpi/power.c
• Orig date: Mon Jan 22 13:23:43 2001

diff -u --recursive --new-file v2.4.5/linux/drivers/acpi/power.c linux/drivers/acpi/power.c
@@ -1,137 +0,0 @@
-/*
- *  power.c - Overall power driver. Also handles AC adapter device.
- *
- *  Copyright (C) 2000 Andrew Grover
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/proc_fs.h>
-#include "acpi.h"
-#include "driver.h"
-
-#define _COMPONENT	OS_DEPENDENT
-	MODULE_NAME	("power")
-
-int acpi_cmbatt_init(void);
-int acpi_cmbatt_terminate(void);
-
-/* ACPI-specific defines */
-#define ACPI_AC_ADAPTER_HID	"ACPI0003"
-
-static int ac_count = 0;
-static ACPI_HANDLE ac_handle = 0;
-
-/*
- * We found a device with the correct HID
- */
-static ACPI_STATUS
-acpi_found_ac_adapter(ACPI_HANDLE handle, u32 level, void *ctx, void **value)
-{
-	ACPI_DEVICE_INFO	info;
-
-	if (ac_count > 0) {
-		printk(KERN_ERR "AC Adapter: more than one!\n");
-		return (AE_OK);
-	}
-
-	if (!ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
-		printk(KERN_ERR "AC Adapter: Could not get AC Adapter object info\n");
-		return (AE_OK);
-	}
-
-	if (!(info.valid & ACPI_VALID_STA)) {
-		printk(KERN_ERR "AC Adapter: Battery _STA invalid\n");
-		return AE_OK;
-	}
-
-	printk(KERN_INFO "AC Adapter: found\n");
-
-	ac_handle = handle;
-
-	ac_count++;
-
-	return AE_OK;
-}
-
-static int
-proc_read_ac_adapter_status(char *page, char **start, off_t off,
-				int count, int *eof, void *data)
-{
-	ACPI_OBJECT obj;
-	ACPI_BUFFER buf;
-
-	char *p = page;
-	int len;
-
-	buf.length = sizeof(obj);
-	buf.pointer = &obj;
-	if (!ACPI_SUCCESS(acpi_evaluate_object(ac_handle, "_PSR", NULL, &buf))
-		|| obj.type != ACPI_TYPE_INTEGER) {
-		p += sprintf(p, "Could not read AC status\n");
-		goto end;
-	}
-
-	if (obj.integer.value)
-		p += sprintf(p, "on-line\n");
-	else
-		p += sprintf(p, "off-line\n");
-
-end:
-	len = (p - page);
-	if (len <= off+count) *eof = 1;
-	*start = page + off;
-	len -= off;
-	if (len>count) len = count;
-	if (len<0) len = 0;
-	return len;
-}
-
-int
-acpi_power_init(void)
-{
-	acpi_get_devices(ACPI_AC_ADAPTER_HID, 
-			acpi_found_ac_adapter,
-			NULL,
-			NULL);
-
-	if (!proc_mkdir("power", NULL))
-		return 0;
-
-	if (ac_handle) {
-		create_proc_read_entry("power/ac", 0, NULL,
-			proc_read_ac_adapter_status, NULL);
-	}
-
-	acpi_cmbatt_init();
-
-	return 0;
-}
-
-int
-acpi_power_terminate(void)
-{
-	acpi_cmbatt_terminate();
-
-	if (ac_handle) {
-		remove_proc_entry("power/ac", NULL);
-	}
-
-	remove_proc_entry("power", NULL);
-
-	return 0;
-}