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