patch-2.4.6 linux/drivers/acpi/ospm/include/tz.h
Next file: linux/drivers/acpi/ospm/processor/Makefile
Previous file: linux/drivers/acpi/ospm/include/sm.h
Back to the patch index
Back to the overall index
- Lines: 280
- Date:
Wed Jun 20 17:47:40 2001
- Orig file:
v2.4.5/linux/drivers/acpi/ospm/include/tz.h
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.4.5/linux/drivers/acpi/ospm/include/tz.h linux/drivers/acpi/ospm/include/tz.h
@@ -0,0 +1,279 @@
+/*****************************************************************************
+ *
+ * Module Name: tz.h
+ * $Revision: 21 $
+ *
+ *****************************************************************************/
+
+/*
+ * 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
+ */
+
+#ifndef __TZ_H__
+#define __TZ_H__
+
+/* TBD: Linux-specific */
+#include <linux/module.h>
+#include <linux/timer.h>
+
+#include <bm.h>
+#include <pr.h>
+
+
+/*****************************************************************************
+ * Types & Other Defines
+ *****************************************************************************/
+
+#define TZ_MAX_THRESHOLDS 12 /* _AC0 through _AC9 + _CRT + _PSV */
+#define TZ_MAX_ACTIVE_THRESHOLDS 10 /* _AC0 through _AC9 */
+#define TZ_MAX_COOLING_DEVICES 10 /* TBD: Make size dynamic */
+
+
+/*
+ * Notifications:
+ * --------------
+ */
+#define TZ_NOTIFY_TEMPERATURE_CHANGE ((BM_NOTIFY) 0x80)
+#define TZ_NOTIFY_THRESHOLD_CHANGE ((BM_NOTIFY) 0x81)
+#define TZ_NOTIFY_DEVICE_LISTS_CHANGE ((BM_NOTIFY) 0x82)
+
+
+/*
+ * TZ_THRESHOLD_TYPE:
+ * ------------------
+ */
+typedef u32 TZ_THRESHOLD_TYPE;
+
+#define TZ_THRESHOLD_UNKNOWN ((TZ_THRESHOLD_TYPE) 0x00)
+#define TZ_THRESHOLD_CRITICAL ((TZ_THRESHOLD_TYPE) 0x01)
+
+#define TZ_THRESHOLD_PASSIVE ((TZ_THRESHOLD_TYPE) 0x02)
+#define TZ_THRESHOLD_ACTIVE ((TZ_THRESHOLD_TYPE) 0x03)
+
+
+/*
+ * TZ_COOLING_STATE:
+ * -----------------
+ */
+typedef u32 TZ_COOLING_STATE;
+
+#define TZ_COOLING_UNKNOWN ((TZ_COOLING_STATE) 0x00)
+#define TZ_COOLING_ENABLED ((TZ_COOLING_STATE) 0x01)
+#define TZ_COOLING_DISABLED ((TZ_COOLING_STATE) 0x02)
+
+
+/*
+ * TZ_COOLING_MODE:
+ * ----------------
+ */
+typedef u32 TZ_COOLING_MODE;
+
+#define TZ_COOLING_MODE_ACTIVE ((TZ_COOLING_MODE) 0x00)
+#define TZ_COOLING_MODE_PASSIVE ((TZ_COOLING_MODE) 0x01)
+
+
+/*
+ * Thermal State:
+ * --------------
+ * The encoding of TZ_STATE is illustrated below.
+ * Note that a set bit (1) indicates the property is TRUE
+ * (e.g. if bit 0 is set then the device has dynamic status).
+ * No bits set indicates an OK cooling state.
+ * +--+--+--+-----------+----------+
+ * |31|30|29| Bits 27:4 | Bits 3:0 |
+ * +--+--+--+-----------+----------+
+ * | | | | |
+ * | | | | +------ Active Index
+ * | | | +----------------- <reserved>
+ * | | +------------------------- Active
+ * | +---------------------------- Passive
+ * +------------------------------- Critical
+ *
+ * Active Index: Value representing the level of active cooling
+ * presently applied (e.g. 0=_AL0, 9=_AL9). Only
+ * valid when 'Active' is set.
+ * Active: If set, indicates that the system temperature
+ * has crossed at least one active threshold (_ALx).
+ * Passive: If set, indicates that the system temperature
+ * has crossed the passive threshold (_PSL).
+ * Passive: If set, indicates that the system temperature
+ * has crossed the critical threshold (_CRT).
+ */
+typedef u32 TZ_STATE;
+
+#define TZ_STATE_OK ((TZ_STATE) 0x00000000)
+#define TZ_STATE_ACTIVE ((TZ_STATE) 0x20000000)
+#define TZ_STATE_PASSIVE ((TZ_STATE) 0x40000000)
+#define TZ_STATE_CRITICAL ((TZ_STATE) 0x80000000)
+
+
+/*
+ * TZ_THRESHOLD:
+ * -------------
+ * Information on an individual threshold.
+ */
+typedef struct {
+ TZ_THRESHOLD_TYPE type;
+ u32 index;
+ u32 temperature;
+ TZ_COOLING_STATE cooling_state;
+ BM_HANDLE_LIST cooling_devices;
+} TZ_THRESHOLD;
+
+
+/*
+ * TZ_THRESHOLD_LIST:
+ * ------------------
+ * Container for the thresholds of a given thermal zone.
+ * Note that thresholds are always ordered by increasing
+ * temperature value to simplify use by thermal policy.
+ */
+typedef struct {
+ u32 count;
+ TZ_THRESHOLD thresholds[TZ_MAX_THRESHOLDS];
+} TZ_THRESHOLD_LIST;
+
+
+/*
+ * TZ_CRITICAL_POLICY:
+ * -------------------
+ */
+typedef struct {
+ TZ_THRESHOLD *threshold;
+} TZ_CRITICAL_POLICY;
+
+
+/*
+ * TZ_PASSIVE_POLICY:
+ * ------------------
+ */
+typedef struct {
+ u32 tc1;
+ u32 tc2;
+ u32 tsp;
+ TZ_THRESHOLD *threshold;
+} TZ_PASSIVE_POLICY;
+
+
+/*
+ * TZ_ACTIVE_POLICY:
+ * -----------------
+ */
+typedef struct {
+ u32 threshold_count;
+ TZ_THRESHOLD *threshold[TZ_MAX_ACTIVE_THRESHOLDS];
+} TZ_ACTIVE_POLICY;
+
+
+/*
+ * TZ_POLICY:
+ * ---------
+ */
+typedef struct {
+ u32 temperature;
+ TZ_STATE state;
+ TZ_COOLING_MODE cooling_mode;
+ u32 polling_freq;
+ TZ_THRESHOLD_LIST threshold_list;
+ TZ_CRITICAL_POLICY critical;
+ TZ_PASSIVE_POLICY passive;
+ TZ_ACTIVE_POLICY active;
+ /* TBD: Linux-specific */
+ struct timer_list timer;
+} TZ_POLICY;
+
+
+/*
+ * TZ_CONTEXT:
+ * -----------
+ */
+typedef struct {
+ BM_HANDLE device_handle;
+ ACPI_HANDLE acpi_handle;
+ char uid[9];
+ TZ_POLICY policy;
+} TZ_CONTEXT;
+
+
+/*****************************************************************************
+ * Function Prototypes
+ *****************************************************************************/
+
+/* thermal_zone.c */
+
+ACPI_STATUS
+tz_initialize (void);
+
+ACPI_STATUS
+tz_terminate (void);
+
+ACPI_STATUS
+tz_notify (
+ BM_NOTIFY notify_type,
+ BM_HANDLE device_handle,
+ BM_DRIVER_CONTEXT *context);
+
+ACPI_STATUS
+tz_request (
+ BM_REQUEST *request,
+ BM_DRIVER_CONTEXT context);
+
+ACPI_STATUS
+tz_get_temperature (
+ TZ_CONTEXT *thermal_zone,
+ u32 *temperature);
+
+ACPI_STATUS
+tz_get_thresholds (
+ TZ_CONTEXT *thermal_zone,
+ TZ_THRESHOLD_LIST *threshold_list);
+
+void
+tz_print (
+ TZ_CONTEXT *thermal_zone);
+
+/* tzpolicy.c */
+
+ACPI_STATUS
+tz_policy_add_device (
+ TZ_CONTEXT *thermal_zone);
+
+ACPI_STATUS
+tz_policy_remove_device (
+ TZ_CONTEXT *thermal_zone);
+
+void
+tz_policy_check (
+ void *context);
+
+/* Thermal Zone Driver OSL */
+
+ACPI_STATUS
+tz_osl_add_device (
+ TZ_CONTEXT *thermal_zone);
+
+ACPI_STATUS
+tz_osl_remove_device (
+ TZ_CONTEXT *thermal_zone);
+
+ACPI_STATUS
+tz_osl_generate_event (
+ u32 event,
+ TZ_CONTEXT *thermal_zone);
+
+
+#endif /* __TZ_H__ */
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)