{
struct acpi_thermal *tz = data;
- if (!tz->tz_enabled) {
- pr_warn("thermal zone is disabled \n");
+ if (!tz->tz_enabled)
return;
- }
+
thermal_zone_device_update(tz->thermal_zone);
}
*/
if (mode == THERMAL_DEVICE_ENABLED)
enable = 1;
- else if (mode == THERMAL_DEVICE_DISABLED)
+ else if (mode == THERMAL_DEVICE_DISABLED) {
enable = 0;
- else
+ pr_warn("thermal zone will be disabled\n");
+ } else
return -EINVAL;
if (enable != tz->tz_enabled) {
select THERMAL_GOV_USER_SPACE
help
Select this if you want to let the user space manage the
- lpatform thermals.
+ platform thermals.
endchoice
bool "Step_wise thermal governor"
help
Enable this to manage platform thermals using a simple linear
+ governor.
config THERMAL_GOV_USER_SPACE
bool "User_space thermal governor"
depends on OF
help
Enable this to plug the SPEAr thermal sensor driver into the Linux
- thermal framework
+ thermal framework.
config RCAR_THERMAL
tristate "Renesas R-Car thermal driver"
depends on ARCH_SHMOBILE
help
Enable this to plug the R-Car thermal sensor driver into the Linux
- thermal framework
+ thermal framework.
config KIRKWOOD_THERMAL
tristate "Temperature sensor on Marvell Kirkwood SoCs"
cool_dev = thermal_cooling_device_register(dev_name, cpufreq_dev,
&cpufreq_cooling_ops);
- if (!cool_dev) {
+ if (IS_ERR(cool_dev)) {
release_idr(&cpufreq_idr, cpufreq_dev->id);
kfree(cpufreq_dev);
- return ERR_PTR(-EINVAL);
+ return cool_dev;
}
cpufreq_dev->cool_dev = cool_dev;
cpufreq_dev->cpufreq_state = 0;
{ X86_VENDOR_INTEL, 6, 0x2e},
{ X86_VENDOR_INTEL, 6, 0x2f},
{ X86_VENDOR_INTEL, 6, 0x3a},
+ { X86_VENDOR_INTEL, 6, 0x3c},
+ { X86_VENDOR_INTEL, 6, 0x3e},
+ { X86_VENDOR_INTEL, 6, 0x3f},
+ { X86_VENDOR_INTEL, 6, 0x45},
+ { X86_VENDOR_INTEL, 6, 0x46},
{}
};
MODULE_DEVICE_TABLE(x86cpu, intel_powerclamp_ids);
/* probe cpu features and ids here */
retval = powerclamp_probe();
if (retval)
- return retval;
+ goto exit_free;
+
/* set default limit, maybe adjusted during runtime based on feedback */
window_size = 2;
register_hotcpu_notifier(&powerclamp_cpu_notifier);
+
powerclamp_thread = alloc_percpu(struct task_struct *);
+ if (!powerclamp_thread) {
+ retval = -ENOMEM;
+ goto exit_unregister;
+ }
+
cooling_dev = thermal_cooling_device_register("intel_powerclamp", NULL,
&powerclamp_cooling_ops);
- if (IS_ERR(cooling_dev))
- return -ENODEV;
+ if (IS_ERR(cooling_dev)) {
+ retval = -ENODEV;
+ goto exit_free_thread;
+ }
if (!duration)
duration = jiffies_to_msecs(DEFAULT_DURATION_JIFFIES);
+
powerclamp_create_debug_files();
return 0;
+
+exit_free_thread:
+ free_percpu(powerclamp_thread);
+exit_unregister:
+ unregister_hotcpu_notifier(&powerclamp_cpu_notifier);
+exit_free:
+ kfree(cpu_clamping_mask);
+ return retval;
}
module_init(powerclamp_init);
if (!pos->tzp && !pos->ops->bind)
continue;
- if (!pos->tzp && pos->ops->bind) {
+ if (pos->ops->bind) {
ret = pos->ops->bind(pos, cdev);
if (ret)
print_bind_err_msg(pos, cdev, ret);
+ continue;
}
tzp = pos->tzp;
mutex_lock(&thermal_list_lock);
- /* If there is no platform data, try to use ops->bind */
- if (!tzp && tz->ops->bind) {
+ /* If there is ops->bind, try to use ops->bind */
+ if (tz->ops->bind) {
list_for_each_entry(pos, &thermal_cdev_list, node) {
ret = tz->ops->bind(tz, pos);
if (ret)
sizeof("thermal_zone") - 1)) {
tz = to_thermal_zone(dev);
kfree(tz);
- } else {
+ } else if(!strncmp(dev_name(dev), "cooling_device",
+ sizeof("cooling_device") - 1)){
cdev = to_cooling_device(dev);
kfree(cdev);
}
@echo ' net - misc networking tools'
@echo ' vm - misc vm tools'
@echo ' x86_energy_perf_policy - Intel energy policy tool'
+ @echo ' tmon - thermal monitoring and tuning tool'
@echo ''
@echo 'You can do:'
@echo ' $$ make -C tools/ <tool>_install'
turbostat x86_energy_perf_policy: FORCE
$(call descend,power/x86/$@)
+tmon: FORCE
+ $(call descend,thermal/$@)
+
cpupower_install:
$(call descend,power/$(@:_install=),install)
turbostat_install x86_energy_perf_policy_install:
$(call descend,power/x86/$(@:_install=),install)
+tmon_install:
+ $(call descend,thermal/$(@:_install=),install)
+
install: cgroup_install cpupower_install firewire_install lguest_install \
perf_install selftests_install turbostat_install usb_install \
- virtio_install vm_install net_install x86_energy_perf_policy_install
+ virtio_install vm_install net_install x86_energy_perf_policy_install \
+ tmon
cpupower_clean:
$(call descend,power/cpupower,clean)
turbostat_clean x86_energy_perf_policy_clean:
$(call descend,power/x86/$(@:_clean=),clean)
+tmon_clean:
+ $(call descend,thermal/tmon,clean)
+
clean: cgroup_clean cpupower_clean firewire_clean lguest_clean perf_clean \
selftests_clean turbostat_clean usb_clean virtio_clean \
- vm_clean net_clean x86_energy_perf_policy_clean
+ vm_clean net_clean x86_energy_perf_policy_clean tmon_clean
.PHONY: FORCE
--- /dev/null
+VERSION = 1.0
+
+BINDIR=usr/bin
+WARNFLAGS=-Wall -Wshadow -W -Wformat -Wimplicit-function-declaration -Wimplicit-int
+CFLAGS= -O1 ${WARNFLAGS} -fstack-protector
+CC=gcc
+
+CFLAGS+=-D VERSION=\"$(VERSION)\"
+LDFLAGS+=
+TARGET=tmon
+
+INSTALL_PROGRAM=install -m 755 -p
+DEL_FILE=rm -f
+
+INSTALL_CONFIGFILE=install -m 644 -p
+CONFIG_FILE=
+CONFIG_PATH=
+
+
+OBJS = tmon.o tui.o sysfs.o pid.o
+OBJS +=
+
+tmon: $(OBJS) Makefile tmon.h
+ $(CC) ${CFLAGS} $(LDFLAGS) $(OBJS) -o $(TARGET) -lm -lpanel -lncursesw -lpthread
+
+valgrind: tmon
+ sudo valgrind -v --track-origins=yes --tool=memcheck --leak-check=yes --show-reachable=yes --num-callers=20 --track-fds=yes ./$(TARGET) 1> /dev/null
+
+install:
+ - mkdir -p $(INSTALL_ROOT)/$(BINDIR)
+ - $(INSTALL_PROGRAM) "$(TARGET)" "$(INSTALL_ROOT)/$(BINDIR)/$(TARGET)"
+ - mkdir -p $(INSTALL_ROOT)/$(CONFIG_PATH)
+ - $(INSTALL_CONFIGFILE) "$(CONFIG_FILE)" "$(INSTALL_ROOT)/$(CONFIG_PATH)"
+
+uninstall:
+ $(DEL_FILE) "$(INSTALL_ROOT)/$(BINDIR)/$(TARGET)"
+ $(CONFIG_FILE) "$(CONFIG_PATH)"
+
+
+clean:
+ find . -name "*.o" | xargs $(DEL_FILE)
+ rm -f $(TARGET)
+
+dist:
+ git tag v$(VERSION)
+ git archive --format=tar --prefix="$(TARGET)-$(VERSION)/" v$(VERSION) | \
+ gzip > $(TARGET)-$(VERSION).tar.gz
--- /dev/null
+TMON - A Monitoring and Testing Tool for Linux kernel thermal subsystem
+
+Why TMON?
+==========
+Increasingly, Linux is running on thermally constrained devices. The simple
+thermal relationship between processor and fan has become past for modern
+computers.
+
+As hardware vendors cope with the thermal constraints on their products, more
+and more sensors are added, new cooling capabilities are introduced. The
+complexity of the thermal relationship can grow exponentially among cooling
+devices, zones, sensors, and trip points. They can also change dynamically.
+
+To expose such relationship to the userspace, Linux generic thermal layer
+introduced sysfs entry at /sys/class/thermal with a matrix of symbolic
+links, trip point bindings, and device instances. To traverse such
+matrix by hand is not a trivial task. Testing is also difficult in that
+thermal conditions are often exception cases that hard to reach in
+normal operations.
+
+TMON is conceived as a tool to help visualize, tune, and test the
+complex thermal subsystem.
+
+Files
+=====
+ tmon.c : main function for set up and configurations.
+ tui.c : handles ncurses based user interface
+ sysfs.c : access to the generic thermal sysfs
+ pid.c : a proportional-integral-derivative (PID) controller
+ that can be used for thermal relationship training.
+
+Requirements
+============
+Depends on ncurses
+
+Build
+=========
+$ make
+$ sudo ./tmon -h
+Usage: tmon [OPTION...]
+ -c, --control cooling device in control
+ -d, --daemon run as daemon, no TUI
+ -l, --log log data to /var/tmp/tmon.log
+ -h, --help show this help message
+ -t, --time-interval set time interval for sampling
+ -v, --version show version
+ -g, --debug debug message in syslog
+
+1. For monitoring only:
+$ sudo ./tmon
--- /dev/null
+/*
+ * pid.c PID controller for testing cooling devices
+ *
+ *
+ *
+ * Copyright (C) 2012 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 or later as published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ * Author Name Jacob Pan <jacob.jun.pan@linux.intel.com>
+ *
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <libintl.h>
+#include <ctype.h>
+#include <assert.h>
+#include <time.h>
+#include <limits.h>
+#include <math.h>
+#include <sys/stat.h>
+#include <syslog.h>
+
+#include "tmon.h"
+
+/**************************************************************************
+ * PID (Proportional-Integral-Derivative) controller is commonly used in
+ * linear control system, consider the the process.
+ * G(s) = U(s)/E(s)
+ * kp = proportional gain
+ * ki = integral gain
+ * kd = derivative gain
+ * Ts
+ * We use type C Alan Bradley equation which takes set point off the
+ * output dependency in P and D term.
+ *
+ * y[k] = y[k-1] - kp*(x[k] - x[k-1]) + Ki*Ts*e[k] - Kd*(x[k]
+ * - 2*x[k-1]+x[k-2])/Ts
+ *
+ *
+ ***********************************************************************/
+struct pid_params p_param;
+/* cached data from previous loop */
+static double xk_1, xk_2; /* input temperature x[k-#] */
+
+/*
+ * TODO: make PID parameters tuned automatically,
+ * 1. use CPU burn to produce open loop unit step response
+ * 2. calculate PID based on Ziegler-Nichols rule
+ *
+ * add a flag for tuning PID
+ */
+int init_thermal_controller(void)
+{
+ int ret = 0;
+
+ /* init pid params */
+ p_param.ts = ticktime;
+ /* TODO: get it from TUI tuning tab */
+ p_param.kp = .36;
+ p_param.ki = 5.0;
+ p_param.kd = 0.19;
+
+ p_param.t_target = target_temp_user;
+
+ return ret;
+}
+
+void controller_reset(void)
+{
+ /* TODO: relax control data when not over thermal limit */
+ syslog(LOG_DEBUG, "TC inactive, relax p-state\n");
+ p_param.y_k = 0.0;
+ xk_1 = 0.0;
+ xk_2 = 0.0;
+ set_ctrl_state(0);
+}
+
+/* To be called at time interval Ts. Type C PID controller.
+ * y[k] = y[k-1] - kp*(x[k] - x[k-1]) + Ki*Ts*e[k] - Kd*(x[k]
+ * - 2*x[k-1]+x[k-2])/Ts
+ * TODO: add low pass filter for D term
+ */
+#define GUARD_BAND (2)
+void controller_handler(const double xk, double *yk)
+{
+ double ek;
+ double p_term, i_term, d_term;
+
+ ek = p_param.t_target - xk; /* error */
+ if (ek >= 3.0) {
+ syslog(LOG_DEBUG, "PID: %3.1f Below set point %3.1f, stop\n",
+ xk, p_param.t_target);
+ controller_reset();
+ *yk = 0.0;
+ return;
+ }
+ /* compute intermediate PID terms */
+ p_term = -p_param.kp * (xk - xk_1);
+ i_term = p_param.kp * p_param.ki * p_param.ts * ek;
+ d_term = -p_param.kp * p_param.kd * (xk - 2 * xk_1 + xk_2) / p_param.ts;
+ /* compute output */
+ *yk += p_term + i_term + d_term;
+ /* update sample data */
+ xk_1 = xk;
+ xk_2 = xk_1;
+
+ /* clamp output adjustment range */
+ if (*yk < -LIMIT_HIGH)
+ *yk = -LIMIT_HIGH;
+ else if (*yk > -LIMIT_LOW)
+ *yk = -LIMIT_LOW;
+
+ p_param.y_k = *yk;
+
+ set_ctrl_state(lround(fabs(p_param.y_k)));
+
+}
--- /dev/null
+/*
+ * sysfs.c sysfs ABI access functions for TMON program
+ *
+ * Copyright (C) 2013 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 or later as published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ * Author: Jacob Pan <jacob.jun.pan@linux.intel.com>
+ *
+ */
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <dirent.h>
+#include <libintl.h>
+#include <ctype.h>
+#include <time.h>
+#include <syslog.h>
+#include <sys/time.h>
+#include <errno.h>
+
+#include "tmon.h"
+
+struct tmon_platform_data ptdata;
+const char *trip_type_name[] = {
+ "critical",
+ "hot",
+ "passive",
+ "active",
+};
+
+int sysfs_set_ulong(char *path, char *filename, unsigned long val)
+{
+ FILE *fd;
+ int ret = -1;
+ char filepath[256];
+
+ snprintf(filepath, 256, "%s/%s", path, filename);
+
+ fd = fopen(filepath, "w");
+ if (!fd) {
+ syslog(LOG_ERR, "Err: open %s: %s\n", __func__, filepath);
+ return ret;
+ }
+ ret = fprintf(fd, "%lu", val);
+ fclose(fd);
+
+ return 0;
+}
+
+/* history of thermal data, used for control algo */
+#define NR_THERMAL_RECORDS 3
+struct thermal_data_record trec[NR_THERMAL_RECORDS];
+int cur_thermal_record; /* index to the trec array */
+
+static int sysfs_get_ulong(char *path, char *filename, unsigned long *p_ulong)
+{
+ FILE *fd;
+ int ret = -1;
+ char filepath[256];
+
+ snprintf(filepath, 256, "%s/%s", path, filename);
+
+ fd = fopen(filepath, "r");
+ if (!fd) {
+ syslog(LOG_ERR, "Err: open %s: %s\n", __func__, filepath);
+ return ret;
+ }
+ ret = fscanf(fd, "%lu", p_ulong);
+ fclose(fd);
+
+ return 0;
+}
+
+static int sysfs_get_string(char *path, char *filename, char *str)
+{
+ FILE *fd;
+ int ret = -1;
+ char filepath[256];
+
+ snprintf(filepath, 256, "%s/%s", path, filename);
+
+ fd = fopen(filepath, "r");
+ if (!fd) {
+ syslog(LOG_ERR, "Err: open %s: %s\n", __func__, filepath);
+ return ret;
+ }
+ ret = fscanf(fd, "%256s", str);
+ fclose(fd);
+
+ return ret;
+}
+
+/* get states of the cooling device instance */
+static int probe_cdev(struct cdev_info *cdi, char *path)
+{
+ sysfs_get_string(path, "type", cdi->type);
+ sysfs_get_ulong(path, "max_state", &cdi->max_state);
+ sysfs_get_ulong(path, "cur_state", &cdi->cur_state);
+
+ syslog(LOG_INFO, "%s: %s: type %s, max %lu, curr %lu inst %d\n",
+ __func__, path,
+ cdi->type, cdi->max_state, cdi->cur_state, cdi->instance);
+
+ return 0;
+}
+
+static int str_to_trip_type(char *name)
+{
+ int i;
+
+ for (i = 0; i < NR_THERMAL_TRIP_TYPE; i++) {
+ if (!strcmp(name, trip_type_name[i]))
+ return i;
+ }
+
+ return -ENOENT;
+}
+
+/* scan and fill in trip point info for a thermal zone and trip point id */
+static int get_trip_point_data(char *tz_path, int tzid, int tpid)
+{
+ char filename[256];
+ char temp_str[256];
+ int trip_type;
+
+ if (tpid >= MAX_NR_TRIP)
+ return -EINVAL;
+ /* check trip point type */
+ snprintf(filename, sizeof(filename), "trip_point_%d_type", tpid);
+ sysfs_get_string(tz_path, filename, temp_str);
+ trip_type = str_to_trip_type(temp_str);
+ if (trip_type < 0) {
+ syslog(LOG_ERR, "%s:%s no matching type\n", __func__, temp_str);
+ return -ENOENT;
+ }
+ ptdata.tzi[tzid].tp[tpid].type = trip_type;
+ syslog(LOG_INFO, "%s:tz:%d tp:%d:type:%s type id %d\n", __func__, tzid,
+ tpid, temp_str, trip_type);
+
+ /* TODO: check attribute */
+
+ return 0;
+}
+
+/* return instance id for file format such as trip_point_4_temp */
+static int get_instance_id(char *name, int pos, int skip)
+{
+ char *ch;
+ int i = 0;
+
+ ch = strtok(name, "_");
+ while (ch != NULL) {
+ ++i;
+ syslog(LOG_INFO, "%s:%s:%s:%d", __func__, name, ch, i);
+ ch = strtok(NULL, "_");
+ if (pos == i)
+ return atol(ch + skip);
+ }
+
+ return -1;
+}
+
+/* Find trip point info of a thermal zone */
+static int find_tzone_tp(char *tz_name, char *d_name, struct tz_info *tzi,
+ int tz_id)
+{
+ int tp_id;
+ unsigned long temp_ulong;
+
+ if (strstr(d_name, "trip_point") &&
+ strstr(d_name, "temp")) {
+ /* check if trip point temp is non-zero
+ * ignore 0/invalid trip points
+ */
+ sysfs_get_ulong(tz_name, d_name, &temp_ulong);
+ if (temp_ulong < MAX_TEMP_KC) {
+ tzi->nr_trip_pts++;
+ /* found a valid trip point */
+ tp_id = get_instance_id(d_name, 2, 0);
+ syslog(LOG_DEBUG, "tzone %s trip %d temp %lu tpnode %s",
+ tz_name, tp_id, temp_ulong, d_name);
+ if (tp_id < 0 || tp_id >= MAX_NR_TRIP) {
+ syslog(LOG_ERR, "Failed to find TP inst %s\n",
+ d_name);
+ return -1;
+ }
+ get_trip_point_data(tz_name, tz_id, tp_id);
+ tzi->tp[tp_id].temp = temp_ulong;
+ }
+ }
+
+ return 0;
+}
+
+/* check cooling devices for binding info. */
+static int find_tzone_cdev(struct dirent *nl, char *tz_name,
+ struct tz_info *tzi, int tz_id, int cid)
+{
+ unsigned long trip_instance = 0;
+ char cdev_name_linked[256];
+ char cdev_name[256];
+ char cdev_trip_name[256];
+ int cdev_id;
+
+ if (nl->d_type == DT_LNK) {
+ syslog(LOG_DEBUG, "TZ%d: cdev: %s cid %d\n", tz_id, nl->d_name,
+ cid);
+ tzi->nr_cdev++;
+ if (tzi->nr_cdev > ptdata.nr_cooling_dev) {
+ syslog(LOG_ERR, "Err: Too many cdev? %d\n",
+ tzi->nr_cdev);
+ return -EINVAL;
+ }
+ /* find the link to real cooling device record binding */
+ snprintf(cdev_name, 256, "%s/%s", tz_name, nl->d_name);
+ memset(cdev_name_linked, 0, sizeof(cdev_name_linked));
+ if (readlink(cdev_name, cdev_name_linked,
+ sizeof(cdev_name_linked) - 1) != -1) {
+ cdev_id = get_instance_id(cdev_name_linked, 1,
+ sizeof("device") - 1);
+ syslog(LOG_DEBUG, "cdev %s linked to %s : %d\n",
+ cdev_name, cdev_name_linked, cdev_id);
+ tzi->cdev_binding |= (1 << cdev_id);
+
+ /* find the trip point in which the cdev is binded to
+ * in this tzone
+ */
+ snprintf(cdev_trip_name, 256, "%s%s", nl->d_name,
+ "_trip_point");
+ sysfs_get_ulong(tz_name, cdev_trip_name,
+ &trip_instance);
+ /* validate trip point range, e.g. trip could return -1
+ * when passive is enabled
+ */
+ if (trip_instance > MAX_NR_TRIP)
+ trip_instance = 0;
+ tzi->trip_binding[cdev_id] |= 1 << trip_instance;
+ syslog(LOG_DEBUG, "cdev %s -> trip:%lu: 0x%lx %d\n",
+ cdev_name, trip_instance,
+ tzi->trip_binding[cdev_id],
+ cdev_id);
+
+
+ }
+ return 0;
+ }
+
+ return -ENODEV;
+}
+
+
+
+/*****************************************************************************
+ * Before calling scan_tzones, thermal sysfs must be probed to determine
+ * the number of thermal zones and cooling devices.
+ * We loop through each thermal zone and fill in tz_info struct, i.e.
+ * ptdata.tzi[]
+root@jacob-chiefriver:~# tree -d /sys/class/thermal/thermal_zone0
+/sys/class/thermal/thermal_zone0
+|-- cdev0 -> ../cooling_device4
+|-- cdev1 -> ../cooling_device3
+|-- cdev10 -> ../cooling_device7
+|-- cdev11 -> ../cooling_device6
+|-- cdev12 -> ../cooling_device5
+|-- cdev2 -> ../cooling_device2
+|-- cdev3 -> ../cooling_device1
+|-- cdev4 -> ../cooling_device0
+|-- cdev5 -> ../cooling_device12
+|-- cdev6 -> ../cooling_device11
+|-- cdev7 -> ../cooling_device10
+|-- cdev8 -> ../cooling_device9
+|-- cdev9 -> ../cooling_device8
+|-- device -> ../../../LNXSYSTM:00/device:62/LNXTHERM:00
+|-- power
+`-- subsystem -> ../../../../class/thermal
+*****************************************************************************/
+static int scan_tzones(void)
+{
+ DIR *dir;
+ struct dirent **namelist;
+ char tz_name[256];
+ int i, j, n, k = 0;
+
+ if (!ptdata.nr_tz_sensor)
+ return -1;
+
+ for (i = 0; i <= ptdata.max_tz_instance; i++) {
+ memset(tz_name, 0, sizeof(tz_name));
+ snprintf(tz_name, 256, "%s/%s%d", THERMAL_SYSFS, TZONE, i);
+
+ dir = opendir(tz_name);
+ if (!dir) {
+ syslog(LOG_INFO, "Thermal zone %s skipped\n", tz_name);
+ continue;
+ }
+ /* keep track of valid tzones */
+ n = scandir(tz_name, &namelist, 0, alphasort);
+ if (n < 0)
+ syslog(LOG_ERR, "scandir failed in %s", tz_name);
+ else {
+ sysfs_get_string(tz_name, "type", ptdata.tzi[k].type);
+ ptdata.tzi[k].instance = i;
+ /* detect trip points and cdev attached to this tzone */
+ j = 0; /* index for cdev */
+ ptdata.tzi[k].nr_cdev = 0;
+ ptdata.tzi[k].nr_trip_pts = 0;
+ while (n--) {
+ char *temp_str;
+
+ if (find_tzone_tp(tz_name, namelist[n]->d_name,
+ &ptdata.tzi[k], k))
+ break;
+ temp_str = strstr(namelist[n]->d_name, "cdev");
+ if (!temp_str) {
+ free(namelist[n]);
+ continue;
+ }
+ if (!find_tzone_cdev(namelist[n], tz_name,
+ &ptdata.tzi[k], i, j))
+ j++; /* increment cdev index */
+ free(namelist[n]);
+ }
+ free(namelist);
+ }
+ /*TODO: reverse trip points */
+ closedir(dir);
+ syslog(LOG_INFO, "TZ %d has %d cdev\n", i,
+ ptdata.tzi[k].nr_cdev);
+ k++;
+ }
+
+ return 0;
+}
+
+static int scan_cdevs(void)
+{
+ DIR *dir;
+ struct dirent **namelist;
+ char cdev_name[256];
+ int i, n, k = 0;
+
+ if (!ptdata.nr_cooling_dev) {
+ fprintf(stderr, "No cooling devices found\n");
+ return 0;
+ }
+ for (i = 0; i <= ptdata.max_cdev_instance; i++) {
+ memset(cdev_name, 0, sizeof(cdev_name));
+ snprintf(cdev_name, 256, "%s/%s%d", THERMAL_SYSFS, CDEV, i);
+
+ dir = opendir(cdev_name);
+ if (!dir) {
+ syslog(LOG_INFO, "Cooling dev %s skipped\n", cdev_name);
+ /* there is a gap in cooling device id, check again
+ * for the same index.
+ */
+ continue;
+ }
+
+ n = scandir(cdev_name, &namelist, 0, alphasort);
+ if (n < 0)
+ syslog(LOG_ERR, "scandir failed in %s", cdev_name);
+ else {
+ sysfs_get_string(cdev_name, "type", ptdata.cdi[k].type);
+ ptdata.cdi[k].instance = i;
+ if (strstr(ptdata.cdi[k].type, ctrl_cdev)) {
+ ptdata.cdi[k].flag |= CDEV_FLAG_IN_CONTROL;
+ syslog(LOG_DEBUG, "control cdev id %d\n", i);
+ }
+ while (n--)
+ free(namelist[n]);
+ free(namelist);
+ }
+ closedir(dir);
+ k++;
+ }
+ return 0;
+}
+
+
+int probe_thermal_sysfs(void)
+{
+ DIR *dir;
+ struct dirent **namelist;
+ int n;
+
+ dir = opendir(THERMAL_SYSFS);
+ if (!dir) {
+ fprintf(stderr, "\nNo thermal sysfs, exit\n");
+ return -1;
+ }
+ n = scandir(THERMAL_SYSFS, &namelist, 0, alphasort);
+ if (n < 0)
+ syslog(LOG_ERR, "scandir failed in thermal sysfs");
+ else {
+ /* detect number of thermal zones and cooling devices */
+ while (n--) {
+ int inst;
+
+ if (strstr(namelist[n]->d_name, CDEV)) {
+ inst = get_instance_id(namelist[n]->d_name, 1,
+ sizeof("device") - 1);
+ /* keep track of the max cooling device since
+ * there may be gaps.
+ */
+ if (inst > ptdata.max_cdev_instance)
+ ptdata.max_cdev_instance = inst;
+
+ syslog(LOG_DEBUG, "found cdev: %s %d %d\n",
+ namelist[n]->d_name,
+ ptdata.nr_cooling_dev,
+ ptdata.max_cdev_instance);
+ ptdata.nr_cooling_dev++;
+ } else if (strstr(namelist[n]->d_name, TZONE)) {
+ inst = get_instance_id(namelist[n]->d_name, 1,
+ sizeof("zone") - 1);
+ if (inst > ptdata.max_tz_instance)
+ ptdata.max_tz_instance = inst;
+
+ syslog(LOG_DEBUG, "found tzone: %s %d %d\n",
+ namelist[n]->d_name,
+ ptdata.nr_tz_sensor,
+ ptdata.max_tz_instance);
+ ptdata.nr_tz_sensor++;
+ }
+ free(namelist[n]);
+ }
+ free(namelist);
+ }
+ syslog(LOG_INFO, "found %d tzone(s), %d cdev(s), target zone %d\n",
+ ptdata.nr_tz_sensor, ptdata.nr_cooling_dev,
+ target_thermal_zone);
+ closedir(dir);
+
+ if (!ptdata.nr_tz_sensor) {
+ fprintf(stderr, "\nNo thermal zones found, exit\n\n");
+ return -1;
+ }
+
+ ptdata.tzi = calloc(sizeof(struct tz_info), ptdata.max_tz_instance+1);
+ if (!ptdata.tzi) {
+ fprintf(stderr, "Err: allocate tz_info\n");
+ return -1;
+ }
+
+ /* we still show thermal zone information if there is no cdev */
+ if (ptdata.nr_cooling_dev) {
+ ptdata.cdi = calloc(sizeof(struct cdev_info),
+ ptdata.max_cdev_instance + 1);
+ if (!ptdata.cdi) {
+ free(ptdata.tzi);
+ fprintf(stderr, "Err: allocate cdev_info\n");
+ return -1;
+ }
+ }
+
+ /* now probe tzones */
+ if (scan_tzones())
+ return -1;
+ if (scan_cdevs())
+ return -1;
+ return 0;
+}
+
+/* convert sysfs zone instance to zone array index */
+int zone_instance_to_index(int zone_inst)
+{
+ int i;
+
+ for (i = 0; i < ptdata.nr_tz_sensor; i++)
+ if (ptdata.tzi[i].instance == zone_inst)
+ return i;
+ return -ENOENT;
+}
+
+/* read temperature of all thermal zones */
+int update_thermal_data()
+{
+ int i;
+ char tz_name[256];
+ static unsigned long samples;
+
+ if (!ptdata.nr_tz_sensor) {
+ syslog(LOG_ERR, "No thermal zones found!\n");
+ return -1;
+ }
+
+ /* circular buffer for keeping historic data */
+ if (cur_thermal_record >= NR_THERMAL_RECORDS)
+ cur_thermal_record = 0;
+ gettimeofday(&trec[cur_thermal_record].tv, NULL);
+ if (tmon_log) {
+ fprintf(tmon_log, "%lu ", ++samples);
+ fprintf(tmon_log, "%3.1f ", p_param.t_target);
+ }
+ for (i = 0; i < ptdata.nr_tz_sensor; i++) {
+ memset(tz_name, 0, sizeof(tz_name));
+ snprintf(tz_name, 256, "%s/%s%d", THERMAL_SYSFS, TZONE,
+ ptdata.tzi[i].instance);
+ sysfs_get_ulong(tz_name, "temp",
+ &trec[cur_thermal_record].temp[i]);
+ if (tmon_log)
+ fprintf(tmon_log, "%lu ",
+ trec[cur_thermal_record].temp[i]/1000);
+ }
+ for (i = 0; i < ptdata.nr_cooling_dev; i++) {
+ char cdev_name[256];
+ unsigned long val;
+
+ snprintf(cdev_name, 256, "%s/%s%d", THERMAL_SYSFS, CDEV,
+ ptdata.cdi[i].instance);
+ probe_cdev(&ptdata.cdi[i], cdev_name);
+ val = ptdata.cdi[i].cur_state;
+ if (val > 1000000)
+ val = 0;
+ if (tmon_log)
+ fprintf(tmon_log, "%lu ", val);
+ }
+
+ if (tmon_log) {
+ fprintf(tmon_log, "\n");
+ fflush(tmon_log);
+ }
+
+ return 0;
+}
+
+void set_ctrl_state(unsigned long state)
+{
+ char ctrl_cdev_path[256];
+ int i;
+ unsigned long cdev_state;
+
+ if (no_control)
+ return;
+ /* set all ctrl cdev to the same state */
+ for (i = 0; i < ptdata.nr_cooling_dev; i++) {
+ if (ptdata.cdi[i].flag & CDEV_FLAG_IN_CONTROL) {
+ if (ptdata.cdi[i].max_state < 10) {
+ strcpy(ctrl_cdev, "None.");
+ return;
+ }
+ /* scale to percentage of max_state */
+ cdev_state = state * ptdata.cdi[i].max_state/100;
+ syslog(LOG_DEBUG,
+ "ctrl cdev %d set state %lu scaled to %lu\n",
+ ptdata.cdi[i].instance, state, cdev_state);
+ snprintf(ctrl_cdev_path, 256, "%s/%s%d", THERMAL_SYSFS,
+ CDEV, ptdata.cdi[i].instance);
+ syslog(LOG_DEBUG, "ctrl cdev path %s", ctrl_cdev_path);
+ sysfs_set_ulong(ctrl_cdev_path, "cur_state",
+ cdev_state);
+ }
+ }
+}
+
+void get_ctrl_state(unsigned long *state)
+{
+ char ctrl_cdev_path[256];
+ int ctrl_cdev_id = -1;
+ int i;
+
+ /* TODO: take average of all ctrl types. also consider change based on
+ * uevent. Take the first reading for now.
+ */
+ for (i = 0; i < ptdata.nr_cooling_dev; i++) {
+ if (ptdata.cdi[i].flag & CDEV_FLAG_IN_CONTROL) {
+ ctrl_cdev_id = ptdata.cdi[i].instance;
+ syslog(LOG_INFO, "ctrl cdev %d get state\n",
+ ptdata.cdi[i].instance);
+ break;
+ }
+ }
+ if (ctrl_cdev_id == -1) {
+ *state = 0;
+ return;
+ }
+ snprintf(ctrl_cdev_path, 256, "%s/%s%d", THERMAL_SYSFS,
+ CDEV, ctrl_cdev_id);
+ sysfs_get_ulong(ctrl_cdev_path, "cur_state", state);
+}
+
+void free_thermal_data(void)
+{
+ free(ptdata.tzi);
+ free(ptdata.cdi);
+}
--- /dev/null
+.TH TMON 8
+.SH NAME
+\fBtmon\fP - A monitoring and testing tool for Linux kernel thermal subsystem
+
+.SH SYNOPSIS
+.ft B
+.B tmon
+.RB [ Options ]
+.br
+.SH DESCRIPTION
+\fBtmon \fP can be used to visualize thermal relationship and
+real-time thermal data; tune
+and test cooling devices and sensors; collect thermal data for offline
+analysis and plot. \fBtmon\fP must be run as root in order to control device
+states via sysfs.
+.PP
+\fBFunctions\fP
+.PP
+.nf
+1. Thermal relationships:
+- show thermal zone information
+- show cooling device information
+- show trip point binding within each thermal zone
+- show trip point and cooling device instance bindings
+.PP
+2. Real time data display
+- show temperature of all thermal zones w.r.t. its trip points and types
+- show states of all cooling devices
+.PP
+3. Thermal relationship learning and device tuning
+- with a built-in Proportional Integral Derivative (\fBPID\fP)
+controller, user can pair a cooling device to a thermal sensor for
+testing the effectiveness and learn about the thermal distance between the two
+- allow manual control of cooling device states and target temperature
+.PP
+4. Data logging in /var/tmp/tmon.log
+- contains thermal configuration data, i.e. cooling device, thermal
+ zones, and trip points. Can be used for data collection in remote
+ debugging.
+- log real-time thermal data into space separated format that can be
+ directly consumed by plotting tools such as Rscript.
+
+.SS Options
+.PP
+The \fB-c --control\fP option sets a cooling device type to control temperature
+of a thermal zone
+.PP
+The \fB-d --daemon\fP option runs \fBtmon \fP as daemon without user interface
+.PP
+The \fB-g --debug\fP option allow debug messages to be stored in syslog
+.PP
+The \fB-h --help\fP option shows help message
+.PP
+The \fB-l --log\fP option write data to /var/tmp/tmon.log
+.PP
+The \fB-t --time-interval\fP option sets the polling interval in seconds
+.PP
+The \fB-v --version\fP option shows the version of \fBtmon \fP
+.PP
+The \fB-z --zone\fP option sets the target therma zone instance to be controlled
+.PP
+
+.SH FIELD DESCRIPTIONS
+.nf
+.PP
+\fBP \fP passive cooling trip point type
+\fBA \fP active cooling trip point type (fan)
+\fBC \fP critical trip point type
+\fBA \fP hot trip point type
+\fBkp \fP proportional gain of \fBPID\fP controller
+\fBki \fP integral gain of \fBPID\fP controller
+\fBkd \fP derivative gain of \fBPID\fP controller
+
+.SH REQUIREMENT
+Build depends on ncurses
+.PP
+Runtime depends on window size large enough to show the number of
+devices found on the system.
+
+.PP
+
+.SH INTERACTIVE COMMANDS
+.pp
+.nf
+\fBCtrl-C, q/Q\fP stops \fBtmon\fP
+\fBTAB\fP shows tuning pop up panel, choose a letter to modify
+
+.SH EXAMPLES
+Without any parameters, tmon is in monitoring only mode and refresh
+screen every 1 second.
+.PP
+1. For monitoring only:
+.nf
+$ sudo ./tmon
+
+2. Use Processor cooling device to control thermal zone 0 at default 65C.
+$ sudo ./tmon -c Processor -z 0
+
+3. Use intel_powerclamp(idle injection) cooling device to control thermal zone 1
+$ sudo ./tmon -c intel_powerclamp -z 1
+
+4. Turn on debug and collect data log at /var/tmp/tmon.log
+$ sudo ./tmon -g -l
+
+For example, the log below shows PID controller was adjusting current states
+for all cooling devices with "Processor" type such that thermal zone 0
+can stay below 65 dC.
+
+#---------- THERMAL DATA LOG STARTED -----------
+Samples TargetTemp acpitz0 acpitz1 Fan0 Fan1 Fan2 Fan3 Fan4 Fan5
+Fan6 Fan7 Fan8 Fan9 Processor10 Processor11 Processor12 Processor13
+LCD14 intel_powerclamp15 1 65.0 65 65 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0 2
+65.0 66 65 0 0 0 0 0 0 0 0 0 0 4 4 4 4 6 0 3 65.0 60 54 0 0 0 0 0 0 0 0
+0 0 4 4 4 4 6 0 4 65.0 53 53 0 0 0 0 0 0 0 0 0 0 4 4 4 4 6 0
+5 65.0 52 52 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0
+6 65.0 53 65 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0
+7 65.0 68 70 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0
+8 65.0 68 68 0 0 0 0 0 0 0 0 0 0 5 5 5 5 6 0
+9 65.0 68 68 0 0 0 0 0 0 0 0 0 0 6 6 6 6 6 0
+10 65.0 67 67 0 0 0 0 0 0 0 0 0 0 7 7 7 7 6 0
+11 65.0 67 67 0 0 0 0 0 0 0 0 0 0 8 8 8 8 6 0
+12 65.0 67 67 0 0 0 0 0 0 0 0 0 0 8 8 8 8 6 0
+13 65.0 67 67 0 0 0 0 0 0 0 0 0 0 9 9 9 9 6 0
+14 65.0 66 66 0 0 0 0 0 0 0 0 0 0 10 10 10 10 6 0
+15 65.0 66 67 0 0 0 0 0 0 0 0 0 0 10 10 10 10 6 0
+16 65.0 66 66 0 0 0 0 0 0 0 0 0 0 11 11 11 11 6 0
+17 65.0 66 66 0 0 0 0 0 0 0 0 0 0 11 11 11 11 6 0
+18 65.0 64 61 0 0 0 0 0 0 0 0 0 0 11 11 11 11 6 0
+19 65.0 60 59 0 0 0 0 0 0 0 0 0 0 12 12 12 12 6 0
+
+Data can be read directly into an array by an example R-script below:
+
+#!/usr/bin/Rscript
+tdata <- read.table("/var/tmp/tmon.log", header=T, comment.char="#")
+attach(tdata)
+jpeg("tmon.jpg")
+X11()
+g_range <- range(0, intel_powerclamp15, TargetTemp, acpitz0)
+plot( Samples, intel_powerclamp15, col="blue", ylim=g_range, axes=FALSE, ann=FALSE)
+par(new=TRUE)
+lines(TargetTemp, type="o", pch=22, lty=2, col="red")
+dev.off()
--- /dev/null
+/*
+ * tmon.c Thermal Monitor (TMON) main function and entry point
+ *
+ * Copyright (C) 2012 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 or later as published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ * Author: Jacob Pan <jacob.jun.pan@linux.intel.com>
+ *
+ */
+
+#include <getopt.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <ncurses.h>
+#include <ctype.h>
+#include <time.h>
+#include <signal.h>
+#include <limits.h>
+#include <sys/time.h>
+#include <pthread.h>
+#include <math.h>
+#include <stdarg.h>
+#include <syslog.h>
+
+#include "tmon.h"
+
+unsigned long ticktime = 1; /* seconds */
+unsigned long no_control = 1; /* monitoring only or use cooling device for
+ * temperature control.
+ */
+double time_elapsed = 0.0;
+unsigned long target_temp_user = 65; /* can be select by tui later */
+int dialogue_on;
+int tmon_exit;
+static short daemon_mode;
+static int logging; /* for recording thermal data to a file */
+static int debug_on;
+FILE *tmon_log;
+/*cooling device used for the PID controller */
+char ctrl_cdev[CDEV_NAME_SIZE] = "None";
+int target_thermal_zone; /* user selected target zone instance */
+static void start_daemon_mode(void);
+
+pthread_t event_tid;
+pthread_mutex_t input_lock;
+void usage()
+{
+ printf("Usage: tmon [OPTION...]\n");
+ printf(" -c, --control cooling device in control\n");
+ printf(" -d, --daemon run as daemon, no TUI\n");
+ printf(" -g, --debug debug message in syslog\n");
+ printf(" -h, --help show this help message\n");
+ printf(" -l, --log log data to /var/tmp/tmon.log\n");
+ printf(" -t, --time-interval sampling time interval, > 1 sec.\n");
+ printf(" -v, --version show version\n");
+ printf(" -z, --zone target thermal zone id\n");
+
+ exit(0);
+}
+
+void version()
+{
+ printf("TMON version %s\n", VERSION);
+ exit(EXIT_SUCCESS);
+}
+
+static void tmon_cleanup(void)
+{
+
+ syslog(LOG_INFO, "TMON exit cleanup\n");
+ fflush(stdout);
+ refresh();
+ if (tmon_log)
+ fclose(tmon_log);
+ if (event_tid) {
+ pthread_mutex_lock(&input_lock);
+ pthread_cancel(event_tid);
+ pthread_mutex_unlock(&input_lock);
+ pthread_mutex_destroy(&input_lock);
+ }
+ closelog();
+ /* relax control knobs, undo throttling */
+ set_ctrl_state(0);
+
+ keypad(stdscr, FALSE);
+ echo();
+ nocbreak();
+ close_windows();
+ endwin();
+ free_thermal_data();
+
+ exit(1);
+}
+
+
+static void tmon_sig_handler(int sig)
+{
+ syslog(LOG_INFO, "TMON caught signal %d\n", sig);
+ refresh();
+ switch (sig) {
+ case SIGTERM:
+ printf("sigterm, exit and clean up\n");
+ fflush(stdout);
+ break;
+ case SIGKILL:
+ printf("sigkill, exit and clean up\n");
+ fflush(stdout);
+ break;
+ case SIGINT:
+ printf("ctrl-c, exit and clean up\n");
+ fflush(stdout);
+ break;
+ default:
+ break;
+ }
+ tmon_exit = true;
+}
+
+
+static void start_syslog(void)
+{
+ if (debug_on)
+ setlogmask(LOG_UPTO(LOG_DEBUG));
+ else
+ setlogmask(LOG_UPTO(LOG_ERR));
+ openlog("tmon.log", LOG_CONS | LOG_PID | LOG_NDELAY, LOG_LOCAL0);
+ syslog(LOG_NOTICE, "TMON started by User %d", getuid());
+}
+
+static void prepare_logging(void)
+{
+ int i;
+
+ if (!logging)
+ return;
+ /* open local data log file */
+ tmon_log = fopen(TMON_LOG_FILE, "w+");
+ if (!tmon_log) {
+ syslog(LOG_ERR, "failed to open log file %s\n", TMON_LOG_FILE);
+ return;
+ }
+
+ fprintf(tmon_log, "#----------- THERMAL SYSTEM CONFIG -------------\n");
+ for (i = 0; i < ptdata.nr_tz_sensor; i++) {
+ char binding_str[33]; /* size of long + 1 */
+ int j;
+
+ memset(binding_str, 0, sizeof(binding_str));
+ for (j = 0; j < 32; j++)
+ binding_str[j] = (ptdata.tzi[i].cdev_binding & 1<<j) ?
+ '1' : '0';
+
+ fprintf(tmon_log, "#thermal zone %s%02d cdevs binding: %32s\n",
+ ptdata.tzi[i].type,
+ ptdata.tzi[i].instance,
+ binding_str);
+ for (j = 0; j < ptdata.tzi[i].nr_trip_pts; j++) {
+ fprintf(tmon_log, "#\tTP%02d type:%s, temp:%lu\n", j,
+ trip_type_name[ptdata.tzi[i].tp[j].type],
+ ptdata.tzi[i].tp[j].temp);
+ }
+
+ }
+
+ for (i = 0; i < ptdata.nr_cooling_dev; i++)
+ fprintf(tmon_log, "#cooling devices%02d: %s\n",
+ i, ptdata.cdi[i].type);
+
+ fprintf(tmon_log, "#---------- THERMAL DATA LOG STARTED -----------\n");
+ fprintf(tmon_log, "Samples TargetTemp ");
+ for (i = 0; i < ptdata.nr_tz_sensor; i++) {
+ fprintf(tmon_log, "%s%d ", ptdata.tzi[i].type,
+ ptdata.tzi[i].instance);
+ }
+ for (i = 0; i < ptdata.nr_cooling_dev; i++)
+ fprintf(tmon_log, "%s%d ", ptdata.cdi[i].type,
+ ptdata.cdi[i].instance);
+
+ fprintf(tmon_log, "\n");
+}
+
+static struct option opts[] = {
+ { "control", 1, NULL, 'c' },
+ { "daemon", 0, NULL, 'd' },
+ { "time-interval", 1, NULL, 't' },
+ { "log", 0, NULL, 'l' },
+ { "help", 0, NULL, 'h' },
+ { "version", 0, NULL, 'v' },
+ { "debug", 0, NULL, 'g' },
+ { 0, 0, NULL, 0 }
+};
+
+
+int main(int argc, char **argv)
+{
+ int err = 0;
+ int id2 = 0, c;
+ double yk = 0.0; /* controller output */
+ int target_tz_index;
+
+ if (geteuid() != 0) {
+ printf("TMON needs to be run as root\n");
+ exit(EXIT_FAILURE);
+ }
+
+ while ((c = getopt_long(argc, argv, "c:dlht:vgz:", opts, &id2)) != -1) {
+ switch (c) {
+ case 'c':
+ no_control = 0;
+ strncpy(ctrl_cdev, optarg, CDEV_NAME_SIZE);
+ break;
+ case 'd':
+ start_daemon_mode();
+ printf("Run TMON in daemon mode\n");
+ break;
+ case 't':
+ ticktime = strtod(optarg, NULL);
+ if (ticktime < 1)
+ ticktime = 1;
+ break;
+ case 'l':
+ printf("Logging data to /var/tmp/tmon.log\n");
+ logging = 1;
+ break;
+ case 'h':
+ usage();
+ break;
+ case 'v':
+ version();
+ break;
+ case 'g':
+ debug_on = 1;
+ break;
+ case 'z':
+ target_thermal_zone = strtod(optarg, NULL);
+ break;
+ default:
+ break;
+ }
+ }
+ if (pthread_mutex_init(&input_lock, NULL) != 0) {
+ fprintf(stderr, "\n mutex init failed, exit\n");
+ return 1;
+ }
+ start_syslog();
+ if (signal(SIGINT, tmon_sig_handler) == SIG_ERR)
+ syslog(LOG_DEBUG, "Cannot handle SIGINT\n");
+ if (signal(SIGTERM, tmon_sig_handler) == SIG_ERR)
+ syslog(LOG_DEBUG, "Cannot handle SIGINT\n");
+
+ if (probe_thermal_sysfs()) {
+ pthread_mutex_destroy(&input_lock);
+ closelog();
+ return -1;
+ }
+ initialize_curses();
+ setup_windows();
+ signal(SIGWINCH, resize_handler);
+ show_title_bar();
+ show_sensors_w();
+ show_cooling_device();
+ update_thermal_data();
+ show_data_w();
+ prepare_logging();
+ init_thermal_controller();
+
+ nodelay(stdscr, TRUE);
+ err = pthread_create(&event_tid, NULL, &handle_tui_events, NULL);
+ if (err != 0) {
+ printf("\ncan't create thread :[%s]", strerror(err));
+ tmon_cleanup();
+ exit(EXIT_FAILURE);
+ }
+
+ /* validate range of user selected target zone, default to the first
+ * instance if out of range
+ */
+ target_tz_index = zone_instance_to_index(target_thermal_zone);
+ if (target_tz_index < 0) {
+ target_thermal_zone = ptdata.tzi[0].instance;
+ syslog(LOG_ERR, "target zone is not found, default to %d\n",
+ target_thermal_zone);
+ }
+ while (1) {
+ sleep(ticktime);
+ show_title_bar();
+ show_sensors_w();
+ update_thermal_data();
+ if (!dialogue_on) {
+ show_data_w();
+ show_cooling_device();
+ }
+ cur_thermal_record++;
+ time_elapsed += ticktime;
+ controller_handler(trec[0].temp[target_tz_index] / 1000,
+ &yk);
+ trec[0].pid_out_pct = yk;
+ if (!dialogue_on)
+ show_control_w();
+ if (tmon_exit)
+ break;
+ }
+ tmon_cleanup();
+ return 0;
+}
+
+static void start_daemon_mode()
+{
+ daemon_mode = 1;
+ /* fork */
+ pid_t sid, pid = fork();
+ if (pid < 0) {
+ exit(EXIT_FAILURE);
+ } else if (pid > 0)
+ /* kill parent */
+ exit(EXIT_SUCCESS);
+
+ /* disable TUI, it may not be necessary, but saves some resource */
+ disable_tui();
+
+ /* change the file mode mask */
+ umask(0);
+
+ /* new SID for the daemon process */
+ sid = setsid();
+ if (sid < 0)
+ exit(EXIT_FAILURE);
+
+ /* change working directory */
+ if ((chdir("/")) < 0)
+ exit(EXIT_FAILURE);
+
+
+ sleep(10);
+
+ close(STDIN_FILENO);
+ close(STDOUT_FILENO);
+ close(STDERR_FILENO);
+
+}
--- /dev/null
+/*
+ * tmon.h contains data structures and constants used by TMON
+ *
+ * Copyright (C) 2012 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 or later as published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ * Author Name Jacob Pan <jacob.jun.pan@linux.intel.com>
+ *
+ */
+
+#ifndef TMON_H
+#define TMON_H
+
+#define MAX_DISP_TEMP 125
+#define MAX_CTRL_TEMP 105
+#define MIN_CTRL_TEMP 40
+#define MAX_NR_TZONE 16
+#define MAX_NR_CDEV 32
+#define MAX_NR_TRIP 16
+#define MAX_NR_CDEV_TRIP 12 /* number of cooling devices that can bind
+ * to a thermal zone trip.
+ */
+#define MAX_TEMP_KC 140000
+/* starting char position to draw sensor data, such as tz names
+ * trip point list, etc.
+ */
+#define DATA_LEFT_ALIGN 10
+#define NR_LINES_TZDATA 1
+#define TMON_LOG_FILE "/var/tmp/tmon.log"
+
+extern unsigned long ticktime;
+extern double time_elapsed;
+extern unsigned long target_temp_user;
+extern int dialogue_on;
+extern char ctrl_cdev[];
+extern pthread_mutex_t input_lock;
+extern int tmon_exit;
+extern int target_thermal_zone;
+/* use fixed size record to simplify data processing and transfer
+ * TBD: more info to be added, e.g. programmable trip point data.
+*/
+struct thermal_data_record {
+ struct timeval tv;
+ unsigned long temp[MAX_NR_TZONE];
+ double pid_out_pct;
+};
+
+struct cdev_info {
+ char type[64];
+ int instance;
+ unsigned long max_state;
+ unsigned long cur_state;
+ unsigned long flag;
+};
+
+enum trip_type {
+ THERMAL_TRIP_CRITICAL,
+ THERMAL_TRIP_HOT,
+ THERMAL_TRIP_PASSIVE,
+ THERMAL_TRIP_ACTIVE,
+ NR_THERMAL_TRIP_TYPE,
+};
+
+struct trip_point {
+ enum trip_type type;
+ unsigned long temp;
+ unsigned long hysteresis;
+ int attribute; /* programmability etc. */
+};
+
+/* thermal zone configuration information, binding with cooling devices could
+ * change at runtime.
+ */
+struct tz_info {
+ char type[256]; /* e.g. acpitz */
+ int instance;
+ int passive; /* active zone has passive node to force passive mode */
+ int nr_cdev; /* number of cooling device binded */
+ int nr_trip_pts;
+ struct trip_point tp[MAX_NR_TRIP];
+ unsigned long cdev_binding; /* bitmap for attached cdevs */
+ /* cdev bind trip points, allow one cdev bind to multiple trips */
+ unsigned long trip_binding[MAX_NR_CDEV];
+};
+
+struct tmon_platform_data {
+ int nr_tz_sensor;
+ int nr_cooling_dev;
+ /* keep track of instance ids since there might be gaps */
+ int max_tz_instance;
+ int max_cdev_instance;
+ struct tz_info *tzi;
+ struct cdev_info *cdi;
+};
+
+struct control_ops {
+ void (*set_ratio)(unsigned long ratio);
+ unsigned long (*get_ratio)(unsigned long ratio);
+
+};
+
+enum cdev_types {
+ CDEV_TYPE_PROC,
+ CDEV_TYPE_FAN,
+ CDEV_TYPE_MEM,
+ CDEV_TYPE_NR,
+};
+
+/* REVISIT: the idea is to group sensors if possible, e.g. on intel mid
+ * we have "skin0", "skin1", "sys", "msicdie"
+ * on DPTF enabled systems, we might have PCH, TSKN, TAMB, etc.
+ */
+enum tzone_types {
+ TZONE_TYPE_ACPI,
+ TZONE_TYPE_PCH,
+ TZONE_TYPE_NR,
+};
+
+/* limit the output of PID controller adjustment */
+#define LIMIT_HIGH (95)
+#define LIMIT_LOW (2)
+
+struct pid_params {
+ double kp; /* Controller gain from Dialog Box */
+ double ki; /* Time-constant for I action from Dialog Box */
+ double kd; /* Time-constant for D action from Dialog Box */
+ double ts;
+ double k_lpf;
+
+ double t_target;
+ double y_k;
+};
+
+extern int init_thermal_controller(void);
+extern void controller_handler(const double xk, double *yk);
+
+extern struct tmon_platform_data ptdata;
+extern struct pid_params p_param;
+
+extern FILE *tmon_log;
+extern int cur_thermal_record; /* index to the trec array */
+extern struct thermal_data_record trec[];
+extern const char *trip_type_name[];
+extern unsigned long no_control;
+
+extern void initialize_curses(void);
+extern void show_controller_stats(char *line);
+extern void show_title_bar(void);
+extern void setup_windows(void);
+extern void disable_tui(void);
+extern void show_sensors_w(void);
+extern void show_data_w(void);
+extern void write_status_bar(int x, char *line);
+extern void show_control_w();
+
+extern void show_cooling_device(void);
+extern void show_dialogue(void);
+extern int update_thermal_data(void);
+
+extern int probe_thermal_sysfs(void);
+extern void free_thermal_data(void);
+extern void resize_handler(int sig);
+extern void set_ctrl_state(unsigned long state);
+extern void get_ctrl_state(unsigned long *state);
+extern void *handle_tui_events(void *arg);
+extern int sysfs_set_ulong(char *path, char *filename, unsigned long val);
+extern int zone_instance_to_index(int zone_inst);
+extern void close_windows(void);
+
+#define PT_COLOR_DEFAULT 1
+#define PT_COLOR_HEADER_BAR 2
+#define PT_COLOR_ERROR 3
+#define PT_COLOR_RED 4
+#define PT_COLOR_YELLOW 5
+#define PT_COLOR_GREEN 6
+#define PT_COLOR_BRIGHT 7
+#define PT_COLOR_BLUE 8
+
+/* each thermal zone uses 12 chars, 8 for name, 2 for instance, 2 space
+ * also used to list trip points in forms of AAAC, which represents
+ * A: Active
+ * C: Critical
+ */
+#define TZONE_RECORD_SIZE 12
+#define TZ_LEFT_ALIGN 32
+#define CDEV_NAME_SIZE 20
+#define CDEV_FLAG_IN_CONTROL (1 << 0)
+
+/* dialogue box starts */
+#define DIAG_X 48
+#define DIAG_Y 8
+#define THERMAL_SYSFS "/sys/class/thermal"
+#define CDEV "cooling_device"
+#define TZONE "thermal_zone"
+#define TDATA_LEFT 16
+#endif /* TMON_H */
--- /dev/null
+/*
+ * tui.c ncurses text user interface for TMON program
+ *
+ * Copyright (C) 2013 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 or later as published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ * Author: Jacob Pan <jacob.jun.pan@linux.intel.com>
+ *
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <ncurses.h>
+#include <time.h>
+#include <syslog.h>
+#include <panel.h>
+#include <pthread.h>
+#include <signal.h>
+
+#include "tmon.h"
+
+static PANEL *data_panel;
+static PANEL *dialogue_panel;
+static PANEL *top;
+
+static WINDOW *title_bar_window;
+static WINDOW *tz_sensor_window;
+static WINDOW *cooling_device_window;
+static WINDOW *control_window;
+static WINDOW *status_bar_window;
+static WINDOW *thermal_data_window;
+static WINDOW *dialogue_window;
+
+char status_bar_slots[10][40];
+static void draw_hbar(WINDOW *win, int y, int start, int len,
+ unsigned long pattern, bool end);
+
+static int maxx, maxy;
+static int maxwidth = 200;
+
+#define TITLE_BAR_HIGHT 1
+#define SENSOR_WIN_HIGHT 4 /* one row for tz name, one for trip points */
+
+
+/* daemon mode flag (set by startup parameter -d) */
+static int tui_disabled;
+
+static void close_panel(PANEL *p)
+{
+ if (p) {
+ del_panel(p);
+ p = NULL;
+ }
+}
+
+static void close_window(WINDOW *win)
+{
+ if (win) {
+ delwin(win);
+ win = NULL;
+ }
+}
+
+void close_windows(void)
+{
+ if (tui_disabled)
+ return;
+ /* must delete panels before their attached windows */
+ if (dialogue_window)
+ close_panel(dialogue_panel);
+ if (cooling_device_window)
+ close_panel(data_panel);
+
+ close_window(title_bar_window);
+ close_window(tz_sensor_window);
+ close_window(status_bar_window);
+ close_window(cooling_device_window);
+ close_window(control_window);
+ close_window(thermal_data_window);
+ close_window(dialogue_window);
+
+}
+
+void write_status_bar(int x, char *line)
+{
+ mvwprintw(status_bar_window, 0, x, "%s", line);
+ wrefresh(status_bar_window);
+}
+
+void setup_windows(void)
+{
+ int y_begin = 1;
+
+ if (tui_disabled)
+ return;
+
+ getmaxyx(stdscr, maxy, maxx);
+ resizeterm(maxy, maxx);
+
+ title_bar_window = subwin(stdscr, TITLE_BAR_HIGHT, maxx, 0, 0);
+ y_begin += TITLE_BAR_HIGHT;
+
+ tz_sensor_window = subwin(stdscr, SENSOR_WIN_HIGHT, maxx, y_begin, 0);
+ y_begin += SENSOR_WIN_HIGHT;
+
+ cooling_device_window = subwin(stdscr, ptdata.nr_cooling_dev + 3, maxx,
+ y_begin, 0);
+ y_begin += ptdata.nr_cooling_dev + 3; /* 2 lines for border */
+ /* two lines to show borders, one line per tz show trip point position
+ * and value.
+ * dialogue window is a pop-up, when needed it lays on top of cdev win
+ */
+
+ dialogue_window = subwin(stdscr, ptdata.nr_cooling_dev+5, maxx-50,
+ DIAG_Y, DIAG_X);
+
+ thermal_data_window = subwin(stdscr, ptdata.nr_tz_sensor *
+ NR_LINES_TZDATA + 3, maxx, y_begin, 0);
+ y_begin += ptdata.nr_tz_sensor * NR_LINES_TZDATA + 3;
+ control_window = subwin(stdscr, 4, maxx, y_begin, 0);
+
+ scrollok(cooling_device_window, TRUE);
+ maxwidth = maxx - 18;
+ status_bar_window = subwin(stdscr, 1, maxx, maxy-1, 0);
+
+ strcpy(status_bar_slots[0], " Ctrl-c - Quit ");
+ strcpy(status_bar_slots[1], " TAB - Tuning ");
+ wmove(status_bar_window, 1, 30);
+
+ /* prepare panels for dialogue, if panel already created then we must
+ * be doing resizing, so just replace windows with new ones, old ones
+ * should have been deleted by close_window
+ */
+ data_panel = new_panel(cooling_device_window);
+ if (!data_panel)
+ syslog(LOG_DEBUG, "No data panel\n");
+ else {
+ if (dialogue_window) {
+ dialogue_panel = new_panel(dialogue_window);
+ if (!dialogue_panel)
+ syslog(LOG_DEBUG, "No dialogue panel\n");
+ else {
+ /* Set up the user pointer to the next panel*/
+ set_panel_userptr(data_panel, dialogue_panel);
+ set_panel_userptr(dialogue_panel, data_panel);
+ top = data_panel;
+ }
+ } else
+ syslog(LOG_INFO, "no dialogue win, term too small\n");
+ }
+ doupdate();
+ werase(stdscr);
+ refresh();
+}
+
+void resize_handler(int sig)
+{
+ /* start over when term gets resized, but first we clean up */
+ close_windows();
+ endwin();
+ refresh();
+ clear();
+ getmaxyx(stdscr, maxy, maxx); /* get the new screen size */
+ setup_windows();
+ /* rate limit */
+ sleep(1);
+ syslog(LOG_DEBUG, "SIG %d, term resized to %d x %d\n",
+ sig, maxy, maxx);
+ signal(SIGWINCH, resize_handler);
+}
+
+const char cdev_title[] = " COOLING DEVICES ";
+void show_cooling_device(void)
+{
+ int i, j, x, y = 0;
+
+ if (tui_disabled || !cooling_device_window)
+ return;
+
+ werase(cooling_device_window);
+ wattron(cooling_device_window, A_BOLD);
+ mvwprintw(cooling_device_window, 1, 1,
+ "ID Cooling Dev Cur Max Thermal Zone Binding");
+ wattroff(cooling_device_window, A_BOLD);
+ for (j = 0; j < ptdata.nr_cooling_dev; j++) {
+ /* draw cooling device list on the left in the order of
+ * cooling device instances. skip unused idr.
+ */
+ mvwprintw(cooling_device_window, j + 2, 1,
+ "%02d %12.12s%6d %6d",
+ ptdata.cdi[j].instance,
+ ptdata.cdi[j].type,
+ ptdata.cdi[j].cur_state,
+ ptdata.cdi[j].max_state);
+ }
+
+ /* show cdev binding, y is the global cooling device instance */
+ for (i = 0; i < ptdata.nr_tz_sensor; i++) {
+ int tz_inst = ptdata.tzi[i].instance;
+ for (j = 0; j < ptdata.nr_cooling_dev; j++) {
+ int cdev_inst;
+ y = j;
+ x = tz_inst * TZONE_RECORD_SIZE + TZ_LEFT_ALIGN;
+
+ draw_hbar(cooling_device_window, y+2, x,
+ TZONE_RECORD_SIZE-1, ACS_VLINE, false);
+
+ /* draw a column of spaces to separate thermal zones */
+ mvwprintw(cooling_device_window, y+2, x-1, " ");
+ if (ptdata.tzi[i].cdev_binding) {
+ cdev_inst = ptdata.cdi[j].instance;
+ unsigned long trip_binding =
+ ptdata.tzi[i].trip_binding[cdev_inst];
+ int k = 0; /* per zone trip point id that
+ * binded to this cdev, one to
+ * many possible based on the
+ * binding bitmask.
+ */
+ syslog(LOG_DEBUG,
+ "bind tz%d cdev%d tp%lx %d cdev%lx\n",
+ i, j, trip_binding, y,
+ ptdata.tzi[i].cdev_binding);
+ /* draw each trip binding for the cdev */
+ while (trip_binding >>= 1) {
+ k++;
+ if (!(trip_binding & 1))
+ continue;
+ /* draw '*' to show binding */
+ mvwprintw(cooling_device_window,
+ y + 2,
+ x + ptdata.tzi[i].nr_trip_pts -
+ k - 1, "*");
+ }
+ }
+ }
+ }
+ /* draw border after data so that border will not be messed up
+ * even there is not enough space for all the data to be shown
+ */
+ wborder(cooling_device_window, 0, 0, 0, 0, 0, 0, 0, 0);
+ wattron(cooling_device_window, A_BOLD);
+ mvwprintw(cooling_device_window, 0, maxx/2 - sizeof(cdev_title),
+ cdev_title);
+ wattroff(cooling_device_window, A_BOLD);
+
+ wrefresh(cooling_device_window);
+}
+
+const char DIAG_TITLE[] = "[ TUNABLES ]";
+#define DIAG_DEV_ROWS 5
+void show_dialogue(void)
+{
+ int j, x = 0, y = 0;
+ WINDOW *w = dialogue_window;
+
+ if (tui_disabled || !w)
+ return;
+
+ werase(w);
+ box(w, 0, 0);
+ mvwprintw(w, 0, maxx/4, DIAG_TITLE);
+ /* list all the available tunables */
+ for (j = 0; j <= ptdata.nr_cooling_dev; j++) {
+ y = j % DIAG_DEV_ROWS;
+ if (y == 0 && j != 0)
+ x += 20;
+ if (j == ptdata.nr_cooling_dev)
+ /* save last choice for target temp */
+ mvwprintw(w, y+1, x+1, "%C-%.12s", 'A'+j, "Set Temp");
+ else
+ mvwprintw(w, y+1, x+1, "%C-%.10s-%2d", 'A'+j,
+ ptdata.cdi[j].type, ptdata.cdi[j].instance);
+ }
+ wattron(w, A_BOLD);
+ mvwprintw(w, DIAG_DEV_ROWS+1, 1, "Enter Choice [A-Z]?");
+ wattroff(w, A_BOLD);
+ /* y size of dialogue win is nr cdev + 5, so print legend
+ * at the bottom line
+ */
+ mvwprintw(w, ptdata.nr_cooling_dev+3, 1,
+ "Legend: A=Active, P=Passive, C=Critical");
+
+ wrefresh(dialogue_window);
+}
+
+void write_dialogue_win(char *buf, int y, int x)
+{
+ WINDOW *w = dialogue_window;
+
+ mvwprintw(w, y, x, "%s", buf);
+}
+
+const char control_title[] = " CONTROLS ";
+void show_control_w(void)
+{
+ unsigned long state;
+
+ get_ctrl_state(&state);
+
+ if (tui_disabled || !control_window)
+ return;
+
+ werase(control_window);
+ mvwprintw(control_window, 1, 1,
+ "PID gain: kp=%2.2f ki=%2.2f kd=%2.2f Output %2.2f",
+ p_param.kp, p_param.ki, p_param.kd, p_param.y_k);
+
+ mvwprintw(control_window, 2, 1,
+ "Target Temp: %2.1fC, Zone: %d, Control Device: %.12s",
+ p_param.t_target, target_thermal_zone, ctrl_cdev);
+
+ /* draw border last such that everything is within boundary */
+ wborder(control_window, 0, 0, 0, 0, 0, 0, 0, 0);
+ wattron(control_window, A_BOLD);
+ mvwprintw(control_window, 0, maxx/2 - sizeof(control_title),
+ control_title);
+ wattroff(control_window, A_BOLD);
+
+ wrefresh(control_window);
+}
+
+void initialize_curses(void)
+{
+ if (tui_disabled)
+ return;
+
+ initscr();
+ start_color();
+ keypad(stdscr, TRUE); /* enable keyboard mapping */
+ nonl(); /* tell curses not to do NL->CR/NL on output */
+ cbreak(); /* take input chars one at a time */
+ noecho(); /* dont echo input */
+ curs_set(0); /* turn off cursor */
+ use_default_colors();
+
+ init_pair(PT_COLOR_DEFAULT, COLOR_WHITE, COLOR_BLACK);
+ init_pair(PT_COLOR_HEADER_BAR, COLOR_BLACK, COLOR_WHITE);
+ init_pair(PT_COLOR_ERROR, COLOR_BLACK, COLOR_RED);
+ init_pair(PT_COLOR_RED, COLOR_WHITE, COLOR_RED);
+ init_pair(PT_COLOR_YELLOW, COLOR_WHITE, COLOR_YELLOW);
+ init_pair(PT_COLOR_GREEN, COLOR_WHITE, COLOR_GREEN);
+ init_pair(PT_COLOR_BLUE, COLOR_WHITE, COLOR_BLUE);
+ init_pair(PT_COLOR_BRIGHT, COLOR_WHITE, COLOR_BLACK);
+
+}
+
+void show_title_bar(void)
+{
+ int i;
+ int x = 0;
+
+ if (tui_disabled || !title_bar_window)
+ return;
+
+ wattrset(title_bar_window, COLOR_PAIR(PT_COLOR_HEADER_BAR));
+ wbkgd(title_bar_window, COLOR_PAIR(PT_COLOR_HEADER_BAR));
+ werase(title_bar_window);
+
+ mvwprintw(title_bar_window, 0, 0,
+ " TMON v%s", VERSION);
+
+ wrefresh(title_bar_window);
+
+ werase(status_bar_window);
+
+ for (i = 0; i < 10; i++) {
+ if (strlen(status_bar_slots[i]) == 0)
+ continue;
+ wattron(status_bar_window, A_REVERSE);
+ mvwprintw(status_bar_window, 0, x, "%s", status_bar_slots[i]);
+ wattroff(status_bar_window, A_REVERSE);
+ x += strlen(status_bar_slots[i]) + 1;
+ }
+ wrefresh(status_bar_window);
+}
+
+static void handle_input_val(int ch)
+{
+ char buf[32];
+ int val;
+ char path[256];
+ WINDOW *w = dialogue_window;
+
+ echo();
+ keypad(w, TRUE);
+ wgetnstr(w, buf, 31);
+ val = atoi(buf);
+
+ if (ch == ptdata.nr_cooling_dev) {
+ snprintf(buf, 31, "Invalid Temp %d! %d-%d", val,
+ MIN_CTRL_TEMP, MAX_CTRL_TEMP);
+ if (val < MIN_CTRL_TEMP || val > MAX_CTRL_TEMP)
+ write_status_bar(40, buf);
+ else {
+ p_param.t_target = val;
+ snprintf(buf, 31, "Set New Target Temp %d", val);
+ write_status_bar(40, buf);
+ }
+ } else {
+ snprintf(path, 256, "%s/%s%d", THERMAL_SYSFS,
+ CDEV, ptdata.cdi[ch].instance);
+ sysfs_set_ulong(path, "cur_state", val);
+ }
+ noecho();
+ dialogue_on = 0;
+ show_data_w();
+ show_control_w();
+
+ top = (PANEL *)panel_userptr(top);
+ top_panel(top);
+}
+
+static void handle_input_choice(int ch)
+{
+ char buf[48];
+ int base = 0;
+ int cdev_id = 0;
+
+ if ((ch >= 'A' && ch <= 'A' + ptdata.nr_cooling_dev) ||
+ (ch >= 'a' && ch <= 'a' + ptdata.nr_cooling_dev)) {
+ base = (ch < 'a') ? 'A' : 'a';
+ cdev_id = ch - base;
+ if (ptdata.nr_cooling_dev == cdev_id)
+ snprintf(buf, sizeof(buf), "New Target Temp:");
+ else
+ snprintf(buf, sizeof(buf), "New Value for %.10s-%2d: ",
+ ptdata.cdi[cdev_id].type,
+ ptdata.cdi[cdev_id].instance);
+ write_dialogue_win(buf, DIAG_DEV_ROWS+2, 2);
+ handle_input_val(cdev_id);
+ } else {
+ snprintf(buf, sizeof(buf), "Invalid selection %d", ch);
+ write_dialogue_win(buf, 8, 2);
+ }
+}
+
+void *handle_tui_events(void *arg)
+{
+ int ch;
+
+ keypad(cooling_device_window, TRUE);
+ while ((ch = wgetch(cooling_device_window)) != EOF) {
+ if (tmon_exit)
+ break;
+ /* when term size is too small, no dialogue panels are set.
+ * we need to filter out such cases.
+ */
+ if (!data_panel || !dialogue_panel ||
+ !cooling_device_window ||
+ !dialogue_window) {
+
+ continue;
+ }
+ pthread_mutex_lock(&input_lock);
+ if (dialogue_on) {
+ handle_input_choice(ch);
+ /* top panel filter */
+ if (ch == 'q' || ch == 'Q')
+ ch = 0;
+ }
+ switch (ch) {
+ case KEY_LEFT:
+ box(cooling_device_window, 10, 0);
+ break;
+ case 9: /* TAB */
+ top = (PANEL *)panel_userptr(top);
+ top_panel(top);
+ if (top == dialogue_panel) {
+ dialogue_on = 1;
+ show_dialogue();
+ } else {
+ dialogue_on = 0;
+ /* force refresh */
+ show_data_w();
+ show_control_w();
+ }
+ break;
+ case 'q':
+ case 'Q':
+ tmon_exit = 1;
+ break;
+ }
+ update_panels();
+ doupdate();
+ pthread_mutex_unlock(&input_lock);
+ }
+
+ if (arg)
+ *(int *)arg = 0; /* make gcc happy */
+
+ return NULL;
+}
+
+/* draw a horizontal bar in given pattern */
+static void draw_hbar(WINDOW *win, int y, int start, int len, unsigned long ptn,
+ bool end)
+{
+ mvwaddch(win, y, start, ptn);
+ whline(win, ptn, len);
+ if (end)
+ mvwaddch(win, y, MAX_DISP_TEMP+TDATA_LEFT, ']');
+}
+
+static char trip_type_to_char(int type)
+{
+ switch (type) {
+ case THERMAL_TRIP_CRITICAL: return 'C';
+ case THERMAL_TRIP_HOT: return 'H';
+ case THERMAL_TRIP_PASSIVE: return 'P';
+ case THERMAL_TRIP_ACTIVE: return 'A';
+ default:
+ return '?';
+ }
+}
+
+/* fill a string with trip point type and value in one line
+ * e.g. P(56) C(106)
+ * maintain the distance one degree per char
+ */
+static void draw_tp_line(int tz, int y)
+{
+ int j;
+ int x;
+
+ for (j = 0; j < ptdata.tzi[tz].nr_trip_pts; j++) {
+ x = ptdata.tzi[tz].tp[j].temp / 1000;
+ mvwprintw(thermal_data_window, y + 0, x + TDATA_LEFT,
+ "%c%d", trip_type_to_char(ptdata.tzi[tz].tp[j].type),
+ x);
+ syslog(LOG_INFO, "%s:tz %d tp %d temp = %lu\n", __func__,
+ tz, j, ptdata.tzi[tz].tp[j].temp);
+ }
+}
+
+const char data_win_title[] = " THERMAL DATA ";
+void show_data_w(void)
+{
+ int i;
+
+
+ if (tui_disabled || !thermal_data_window)
+ return;
+
+ werase(thermal_data_window);
+ wattron(thermal_data_window, A_BOLD);
+ mvwprintw(thermal_data_window, 0, maxx/2 - sizeof(data_win_title),
+ data_win_title);
+ wattroff(thermal_data_window, A_BOLD);
+ /* draw a line as ruler */
+ for (i = 10; i < MAX_DISP_TEMP; i += 10)
+ mvwprintw(thermal_data_window, 1, i+TDATA_LEFT, "%2d", i);
+
+ for (i = 0; i < ptdata.nr_tz_sensor; i++) {
+ int temp = trec[cur_thermal_record].temp[i] / 1000;
+ int y = 0;
+
+ y = i * NR_LINES_TZDATA + 2;
+ /* y at tz temp data line */
+ mvwprintw(thermal_data_window, y, 1, "%6.6s%2d:[%3d][",
+ ptdata.tzi[i].type,
+ ptdata.tzi[i].instance, temp);
+ draw_hbar(thermal_data_window, y, TDATA_LEFT, temp, ACS_RARROW,
+ true);
+ draw_tp_line(i, y);
+ }
+ wborder(thermal_data_window, 0, 0, 0, 0, 0, 0, 0, 0);
+ wrefresh(thermal_data_window);
+}
+
+const char tz_title[] = "THERMAL ZONES(SENSORS)";
+
+void show_sensors_w(void)
+{
+ int i, j;
+ char buffer[512];
+
+ if (tui_disabled || !tz_sensor_window)
+ return;
+
+ werase(tz_sensor_window);
+
+ memset(buffer, 0, sizeof(buffer));
+ wattron(tz_sensor_window, A_BOLD);
+ mvwprintw(tz_sensor_window, 1, 1, "Thermal Zones:");
+ wattroff(tz_sensor_window, A_BOLD);
+
+ mvwprintw(tz_sensor_window, 1, TZ_LEFT_ALIGN, "%s", buffer);
+ /* fill trip points for each tzone */
+ wattron(tz_sensor_window, A_BOLD);
+ mvwprintw(tz_sensor_window, 2, 1, "Trip Points:");
+ wattroff(tz_sensor_window, A_BOLD);
+
+ /* draw trip point from low to high for each tz */
+ for (i = 0; i < ptdata.nr_tz_sensor; i++) {
+ int inst = ptdata.tzi[i].instance;
+
+ mvwprintw(tz_sensor_window, 1,
+ TZ_LEFT_ALIGN+TZONE_RECORD_SIZE * inst, "%.9s%02d",
+ ptdata.tzi[i].type, ptdata.tzi[i].instance);
+ for (j = ptdata.tzi[i].nr_trip_pts - 1; j >= 0; j--) {
+ /* loop through all trip points */
+ char type;
+ int tp_pos;
+ /* reverse the order here since trips are sorted
+ * in ascending order in terms of temperature.
+ */
+ tp_pos = ptdata.tzi[i].nr_trip_pts - j - 1;
+
+ type = trip_type_to_char(ptdata.tzi[i].tp[j].type);
+ mvwaddch(tz_sensor_window, 2,
+ inst * TZONE_RECORD_SIZE + TZ_LEFT_ALIGN +
+ tp_pos, type);
+ syslog(LOG_DEBUG, "draw tz %d tp %d ch:%c\n",
+ inst, j, type);
+ }
+ }
+ wborder(tz_sensor_window, 0, 0, 0, 0, 0, 0, 0, 0);
+ wattron(tz_sensor_window, A_BOLD);
+ mvwprintw(tz_sensor_window, 0, maxx/2 - sizeof(tz_title), tz_title);
+ wattroff(tz_sensor_window, A_BOLD);
+ wrefresh(tz_sensor_window);
+}
+
+void disable_tui(void)
+{
+ tui_disabled = 1;
+}
projects / cascardo / linux.git / commitdiff