patch-2.4.22 linux-2.4.22/drivers/acpi/ospm/thermal/tz_osl.c

• Lines: 399
• Date: 1969-12-31 16:00:00.000000000 -0800
• Orig file: linux-2.4.21/drivers/acpi/ospm/thermal/tz_osl.c
• Orig date: 2001-12-21 09:41:53.000000000 -0800

diff -urN linux-2.4.21/drivers/acpi/ospm/thermal/tz_osl.c linux-2.4.22/drivers/acpi/ospm/thermal/tz_osl.c
@@ -1,398 +0,0 @@
-/******************************************************************************
- *
- * Module Name: tz_osl.c
- *   $Revision: 25 $
- *
- *****************************************************************************/
-
-/*
- *  Copyright (C) 2000, 2001 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/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/proc_fs.h>
-#include <acpi.h>
-#include "tz.h"
-
-
-MODULE_AUTHOR("Andrew Grover");
-MODULE_DESCRIPTION("ACPI Component Architecture (CA) - Thermal Zone Driver");
-MODULE_LICENSE("GPL");
-
-int TZP = 0;
-MODULE_PARM(TZP, "i");
-MODULE_PARM_DESC(TZP, "Thermal zone polling frequency, in 1/10 seconds.\n");
-
-
-#define TZ_PROC_ROOT		"thermal"
-#define TZ_PROC_STATUS		"status"
-#define TZ_PROC_INFO		"info"
-
-extern struct proc_dir_entry	*bm_proc_root;
-static struct proc_dir_entry	*tz_proc_root = NULL;
-
-
-/****************************************************************************
- *
- * FUNCTION:	tz_osl_proc_read_info
- *
- ****************************************************************************/
-
-static int
-tz_osl_proc_read_info (
-	char			*page,
-	char			**start,
-	off_t			off,
-	int 			count,
-	int 			*eof,
-	void			*context)
-{
-	acpi_status		status = AE_OK;
-	char			name[5];
-	acpi_buffer		buffer = {sizeof(name), &name};
-	TZ_CONTEXT		*tz = NULL;
-	TZ_THRESHOLDS		*thresholds = NULL;
-	char			*p = page;
-	int 			len = 0;
-	u32			i,j;
-	u32			t = 0;
-
-	if (!context || (off != 0))
-		goto end;
-
-	tz = (TZ_CONTEXT*)context;
-
-	thresholds = &(tz->policy.thresholds);
-
-	p += sprintf(p, "critical (S5): trip=%d\n", thresholds->critical.temperature);
-	
-	if (thresholds->hot.is_valid)
-		p += sprintf(p, "critical (S4): trip=%d\n", thresholds->hot.temperature);
-
-	if (thresholds->passive.is_valid) {
-		p += sprintf(p, "passive:       trip=%d tc1=%d tc2=%d tsp=%d devices=", thresholds->passive.temperature, thresholds->passive.tc1, thresholds->passive.tc2, thresholds->passive.tsp);
-		for (j=0; j<thresholds->passive.devices.count; j++)
-			p += sprintf(p, "%08x%c", thresholds->passive.devices.handles[j], (j==thresholds->passive.devices.count-1)?'\n':',');
-	}
-
-	for (i=0; i<TZ_MAX_ACTIVE_THRESHOLDS; i++) {
-		if (!(thresholds->active[i].is_valid))
-			break;
-		p += sprintf(p, "active[%d]:     trip=%d devices=", i, thresholds->active[i].temperature);
-		for (j=0; j<thresholds->active[i].devices.count; j++)
-			p += sprintf(p, "%08x%c", thresholds->active[i].devices.handles[j], (j==thresholds->passive.devices.count-1)?'\n':',');
-	}
-
-	p += sprintf(p, "cooling mode:  ");
-	switch (tz->policy.cooling_mode) {
-	case TZ_COOLING_MODE_ACTIVE:
-		p += sprintf(p, "active (noisy)\n");
-		break;
-	case TZ_COOLING_MODE_PASSIVE:
-		p += sprintf(p, "passive (quiet)\n");
-		break;
-	default:
-		p += sprintf(p, "unknown\n");
-		break;
-	}
-
-	p += sprintf(p, "polling:       ");
-	switch (tz->policy.polling_freq) {
-	case 0:
-		p += sprintf(p, "disabled\n");
-		break;
-	default:
-		p += sprintf(p, "%d dS\n", tz->policy.polling_freq);
-		break;
-	}
-
-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;
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:	tz_osl_proc_write_info
- *
- ****************************************************************************/
-
-static int tz_osl_proc_write_info (
-        struct file		*file, 
-        const char		*buffer, 
-        unsigned long		count, 
-        void			*data)
-{
-	TZ_CONTEXT		*tz = NULL;
-	u32			state = 0;
-	u32			size = 0;
-
-	if (!buffer || (count==0) || !data) {
-		goto end;
-	}
-
-	tz = (TZ_CONTEXT*)data;
-
-	size = strlen(buffer);
-	if (size < 4)
-		goto end;
-	
-	/* Cooling preference: "scp=0" (active) or "scp=1" (passive) */
-	if (0 == strncmp(buffer, "scp=", 4)) {
-		tz_set_cooling_preference(tz, (buffer[4] - '0'));
-	}
-
-	/* Polling frequency: "tzp=X" (poll every X [0-9] seconds) */
-	else if (0 == strncmp(buffer, "tzp=", 4)) {
-		tz->policy.polling_freq = (buffer[4] - '0') * 10;
-		tz_policy_check(tz);
-	}
-
-end:
-        return count;
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:	tz_osl_proc_read_status
- *
- ****************************************************************************/
-
-static int
-tz_osl_proc_read_status (
-	char			*page,
-	char			**start,
-	off_t			off,
-	int 			count,
-	int 			*eof,
-	void			*context)
-{
-	TZ_CONTEXT		*tz = NULL;
-	char			*p = page;
-	int 			len = 0;
-
-	if (!context || (off != 0)) {
-		goto end;
-	}
-
-	tz = (TZ_CONTEXT*)context;
-
-	/* Temperature */
-
-	tz_get_temperature(tz);
-
-	p += sprintf(p, "temperature:   %d dK\n", tz->policy.temperature);
-
-	p += sprintf(p, "state:         ");
-	if (tz->policy.state == 0)
-		p += sprintf(p, "ok\n");
-	else if (tz->policy.state & TZ_STATE_CRITICAL)
-		p += sprintf(p, "critical\n");
-	else if (tz->policy.state & TZ_STATE_HOT)
-		p += sprintf(p, "hot\n");
-	else {
-		if (tz->policy.state & TZ_STATE_ACTIVE)
-			p += sprintf(p, "active[%d] ", tz->policy.state & 0x07);
-		if (tz->policy.state & TZ_STATE_PASSIVE)
-			p += sprintf(p, "passive ");
-		p += sprintf(p, "\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);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:	tz_osl_add_device
- *
- ****************************************************************************/
-
-acpi_status
-tz_osl_add_device(
-	TZ_CONTEXT		*tz)
-{
-	struct proc_dir_entry	*proc_entry = NULL;
-	struct proc_dir_entry	*proc_child_entry = NULL;
-
-	if (!tz) {
-		return(AE_BAD_PARAMETER);
-	}
-
-	printk("ACPI: Thermal Zone found\n");
-
-	proc_entry = proc_mkdir(tz->uid, tz_proc_root);
-	if (!proc_entry) 
-		return(AE_ERROR);
-
-	proc_child_entry = create_proc_read_entry(TZ_PROC_STATUS, S_IFREG | S_IRUGO, proc_entry, tz_osl_proc_read_status, (void*)tz);
-	if (!proc_child_entry) 
-		return(AE_ERROR);
-
-	proc_child_entry = create_proc_entry(TZ_PROC_INFO, S_IFREG | 0644, proc_entry);
-	if (!proc_child_entry)
-		return(AE_ERROR);
-
-	proc_child_entry->read_proc = tz_osl_proc_read_info;
-	proc_child_entry->write_proc = tz_osl_proc_write_info;
-	proc_child_entry->data = (void*)tz;
-
-	return(AE_OK);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:	tz_osl_remove_device
- *
- ****************************************************************************/
-
-acpi_status
-tz_osl_remove_device (
-	TZ_CONTEXT		*tz)
-{
-	char			proc_entry[64];
-
-	if (!tz) {
-		return(AE_BAD_PARAMETER);
-	}
-
-	sprintf(proc_entry, "%s/%s", tz->uid, TZ_PROC_INFO);
-	remove_proc_entry(proc_entry, tz_proc_root);
-
-	sprintf(proc_entry, "%s/%s", tz->uid, TZ_PROC_STATUS);
-	remove_proc_entry(proc_entry, tz_proc_root);
-
-	sprintf(proc_entry, "%s", tz->uid);
-	remove_proc_entry(proc_entry, tz_proc_root);
-
-	return(AE_OK);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:	tz_osl_generate_event
- *
- ****************************************************************************/
-
-acpi_status
-tz_osl_generate_event (
-	u32			event,
-	TZ_CONTEXT		*tz)
-{
-	acpi_status		status = AE_OK;
-
-	if (!tz) {
-		return(AE_BAD_PARAMETER);
-	}
-
-	switch (event) {
-
-	case TZ_NOTIFY_TEMPERATURE_CHANGE:
-		status = bm_osl_generate_event(tz->device_handle,
-			TZ_PROC_ROOT, tz->uid, event,
-			tz->policy.temperature);
-		break;
-
-	case TZ_NOTIFY_THRESHOLD_CHANGE:
-	case TZ_NOTIFY_DEVICE_LISTS_CHANGE:
-		status = bm_osl_generate_event(tz->device_handle,
-			TZ_PROC_ROOT, tz->uid, event, 0);
-		break;
-
-	default:
-		return(AE_BAD_PARAMETER);
-		break;
-	}
-
-	return(status);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:	tz_osl_init
- *
- ****************************************************************************/
-
-static int __init
-tz_osl_init (void)
-{
-	acpi_status		status = AE_OK;
-
-	/* abort if no busmgr */
-	if (!bm_proc_root)
-		return -ENODEV;
-
-	tz_proc_root = proc_mkdir(TZ_PROC_ROOT, bm_proc_root);
-	if (!tz_proc_root) {
-		status = AE_ERROR;
-	}
-	else {
-		status = tz_initialize();
-		if (ACPI_FAILURE(status)) {
-			remove_proc_entry(TZ_PROC_ROOT, bm_proc_root);
-		}
-
-	}
-
-	return (ACPI_SUCCESS(status)) ? 0 : -ENODEV;
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:	tz_osl_cleanup
- *
- ****************************************************************************/
-
-static void __exit
-tz_osl_cleanup (void)
-{
-	tz_terminate();
-
-	if (tz_proc_root) {
-		remove_proc_entry(TZ_PROC_ROOT, bm_proc_root);
-	}
-
-	return;
-}
-
-
-module_init(tz_osl_init);
-module_exit(tz_osl_cleanup);