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path: root/drivers/macintosh/therm_adt746x.c
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Diffstat (limited to 'drivers/macintosh/therm_adt746x.c')
-rw-r--r--drivers/macintosh/therm_adt746x.c125
1 files changed, 83 insertions, 42 deletions
diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c
index e0ac63effa55..d09308f30960 100644
--- a/drivers/macintosh/therm_adt746x.c
+++ b/drivers/macintosh/therm_adt746x.c
@@ -39,15 +39,16 @@
#define MANUAL_MASK 0xe0
#define AUTO_MASK 0x20
-static u8 TEMP_REG[3] = {0x26, 0x25, 0x27}; /* local, cpu, gpu */
-static u8 LIMIT_REG[3] = {0x6b, 0x6a, 0x6c}; /* local, cpu, gpu */
+static u8 TEMP_REG[3] = {0x26, 0x25, 0x27}; /* local, sensor1, sensor2 */
+static u8 LIMIT_REG[3] = {0x6b, 0x6a, 0x6c}; /* local, sensor1, sensor2 */
static u8 MANUAL_MODE[2] = {0x5c, 0x5d};
static u8 REM_CONTROL[2] = {0x00, 0x40};
static u8 FAN_SPEED[2] = {0x28, 0x2a};
static u8 FAN_SPD_SET[2] = {0x30, 0x31};
-static u8 default_limits_local[3] = {70, 50, 70}; /* local, cpu, gpu */
-static u8 default_limits_chip[3] = {80, 65, 80}; /* local, cpu, gpu */
+static u8 default_limits_local[3] = {70, 50, 70}; /* local, sensor1, sensor2 */
+static u8 default_limits_chip[3] = {80, 65, 80}; /* local, sensor1, sensor2 */
+static char *sensor_location[3] = {NULL, NULL, NULL};
static int limit_adjust = 0;
static int fan_speed = -1;
@@ -58,7 +59,7 @@ MODULE_DESCRIPTION("Driver for ADT746x thermostat in iBook G4 and "
MODULE_LICENSE("GPL");
module_param(limit_adjust, int, 0644);
-MODULE_PARM_DESC(limit_adjust,"Adjust maximum temperatures (50 cpu, 70 gpu) "
+MODULE_PARM_DESC(limit_adjust,"Adjust maximum temperatures (50 sensor1, 70 sensor2) "
"by N degrees.");
module_param(fan_speed, int, 0644);
@@ -213,10 +214,10 @@ static void write_fan_speed(struct thermostat *th, int speed, int fan)
if (th->last_speed[fan] != speed) {
if (speed == -1)
printk(KERN_DEBUG "adt746x: Setting speed to automatic "
- "for %s fan.\n", fan?"GPU":"CPU");
+ "for %s fan.\n", sensor_location[fan+1]);
else
printk(KERN_DEBUG "adt746x: Setting speed to %d "
- "for %s fan.\n", speed, fan?"GPU":"CPU");
+ "for %s fan.\n", speed, sensor_location[fan+1]);
} else
return;
@@ -300,11 +301,11 @@ static void update_fans_speed (struct thermostat *th)
printk(KERN_DEBUG "adt746x: setting fans speed to %d "
"(limit exceeded by %d on %s) \n",
new_speed, var,
- fan_number?"GPU/pwr":"CPU");
+ sensor_location[fan_number+1]);
write_both_fan_speed(th, new_speed);
th->last_var[fan_number] = var;
} else if (var < -2) {
- /* don't stop fan if GPU/power is cold and CPU is not
+ /* don't stop fan if sensor2 is cold and sensor1 is not
* so cold (lastvar >= -1) */
if (i == 2 && lastvar < -1) {
if (th->last_speed[fan_number] != 0)
@@ -318,7 +319,7 @@ static void update_fans_speed (struct thermostat *th)
if (started)
return; /* we don't want to re-stop the fan
- * if CPU is heating and GPU/power is not */
+ * if sensor1 is heating and sensor2 is not */
}
}
@@ -353,7 +354,7 @@ static int monitor_task(void *arg)
static void set_limit(struct thermostat *th, int i)
{
- /* Set CPU limit higher to avoid powerdowns */
+ /* Set sensor1 limit higher to avoid powerdowns */
th->limits[i] = default_limits_chip[i] + limit_adjust;
write_reg(th, LIMIT_REG[i], th->limits[i]);
@@ -461,6 +462,12 @@ static ssize_t show_##name(struct device *dev, char *buf) \
return sprintf(buf, "%d\n", data); \
}
+#define BUILD_SHOW_FUNC_STR(name, data) \
+static ssize_t show_##name(struct device *dev, char *buf) \
+{ \
+ return sprintf(buf, "%s\n", data); \
+}
+
#define BUILD_SHOW_FUNC_FAN(name, data) \
static ssize_t show_##name(struct device *dev, char *buf) \
{ \
@@ -476,7 +483,7 @@ static ssize_t store_##name(struct device *dev, const char *buf, size_t n) \
int val; \
int i; \
val = simple_strtol(buf, NULL, 10); \
- printk(KERN_INFO "Adjusting limits by %d°C\n", val); \
+ printk(KERN_INFO "Adjusting limits by %d degrees\n", val); \
limit_adjust = val; \
for (i=0; i < 3; i++) \
set_limit(thermostat, i); \
@@ -495,35 +502,41 @@ static ssize_t store_##name(struct device *dev, const char *buf, size_t n) \
return n; \
}
-BUILD_SHOW_FUNC_INT(cpu_temperature, (read_reg(thermostat, TEMP_REG[1])))
-BUILD_SHOW_FUNC_INT(gpu_temperature, (read_reg(thermostat, TEMP_REG[2])))
-BUILD_SHOW_FUNC_INT(cpu_limit, thermostat->limits[1])
-BUILD_SHOW_FUNC_INT(gpu_limit, thermostat->limits[2])
+BUILD_SHOW_FUNC_INT(sensor1_temperature, (read_reg(thermostat, TEMP_REG[1])))
+BUILD_SHOW_FUNC_INT(sensor2_temperature, (read_reg(thermostat, TEMP_REG[2])))
+BUILD_SHOW_FUNC_INT(sensor1_limit, thermostat->limits[1])
+BUILD_SHOW_FUNC_INT(sensor2_limit, thermostat->limits[2])
+BUILD_SHOW_FUNC_STR(sensor1_location, sensor_location[1])
+BUILD_SHOW_FUNC_STR(sensor2_location, sensor_location[2])
BUILD_SHOW_FUNC_INT(specified_fan_speed, fan_speed)
-BUILD_SHOW_FUNC_FAN(cpu_fan_speed, 0)
-BUILD_SHOW_FUNC_FAN(gpu_fan_speed, 1)
+BUILD_SHOW_FUNC_FAN(sensor1_fan_speed, 0)
+BUILD_SHOW_FUNC_FAN(sensor2_fan_speed, 1)
BUILD_STORE_FUNC_INT(specified_fan_speed,fan_speed)
BUILD_SHOW_FUNC_INT(limit_adjust, limit_adjust)
BUILD_STORE_FUNC_DEG(limit_adjust, thermostat)
-static DEVICE_ATTR(cpu_temperature, S_IRUGO,
- show_cpu_temperature,NULL);
-static DEVICE_ATTR(gpu_temperature, S_IRUGO,
- show_gpu_temperature,NULL);
-static DEVICE_ATTR(cpu_limit, S_IRUGO,
- show_cpu_limit, NULL);
-static DEVICE_ATTR(gpu_limit, S_IRUGO,
- show_gpu_limit, NULL);
+static DEVICE_ATTR(sensor1_temperature, S_IRUGO,
+ show_sensor1_temperature,NULL);
+static DEVICE_ATTR(sensor2_temperature, S_IRUGO,
+ show_sensor2_temperature,NULL);
+static DEVICE_ATTR(sensor1_limit, S_IRUGO,
+ show_sensor1_limit, NULL);
+static DEVICE_ATTR(sensor2_limit, S_IRUGO,
+ show_sensor2_limit, NULL);
+static DEVICE_ATTR(sensor1_location, S_IRUGO,
+ show_sensor1_location, NULL);
+static DEVICE_ATTR(sensor2_location, S_IRUGO,
+ show_sensor2_location, NULL);
static DEVICE_ATTR(specified_fan_speed, S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH,
show_specified_fan_speed,store_specified_fan_speed);
-static DEVICE_ATTR(cpu_fan_speed, S_IRUGO,
- show_cpu_fan_speed, NULL);
-static DEVICE_ATTR(gpu_fan_speed, S_IRUGO,
- show_gpu_fan_speed, NULL);
+static DEVICE_ATTR(sensor1_fan_speed, S_IRUGO,
+ show_sensor1_fan_speed, NULL);
+static DEVICE_ATTR(sensor2_fan_speed, S_IRUGO,
+ show_sensor2_fan_speed, NULL);
static DEVICE_ATTR(limit_adjust, S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH,
show_limit_adjust, store_limit_adjust);
@@ -534,6 +547,7 @@ thermostat_init(void)
{
struct device_node* np;
u32 *prop;
+ int i = 0, offset = 0;
np = of_find_node_by_name(NULL, "fan");
if (!np)
@@ -545,6 +559,12 @@ thermostat_init(void)
else
return -ENODEV;
+ prop = (u32 *)get_property(np, "hwsensor-params-version", NULL);
+ printk(KERN_INFO "adt746x: version %d (%ssupported)\n", *prop,
+ (*prop == 1)?"":"un");
+ if (*prop != 1)
+ return -ENODEV;
+
prop = (u32 *)get_property(np, "reg", NULL);
if (!prop)
return -ENODEV;
@@ -563,6 +583,23 @@ thermostat_init(void)
"limit_adjust: %d, fan_speed: %d\n",
therm_bus, therm_address, limit_adjust, fan_speed);
+ if (get_property(np, "hwsensor-location", NULL)) {
+ for (i = 0; i < 3; i++) {
+ sensor_location[i] = get_property(np,
+ "hwsensor-location", NULL) + offset;
+
+ if (sensor_location[i] == NULL)
+ sensor_location[i] = "";
+
+ printk(KERN_INFO "sensor %d: %s\n", i, sensor_location[i]);
+ offset += strlen(sensor_location[i]) + 1;
+ }
+ } else {
+ sensor_location[0] = "?";
+ sensor_location[1] = "?";
+ sensor_location[2] = "?";
+ }
+
of_dev = of_platform_device_create(np, "temperatures");
if (of_dev == NULL) {
@@ -570,15 +607,17 @@ thermostat_init(void)
return -ENODEV;
}
- device_create_file(&of_dev->dev, &dev_attr_cpu_temperature);
- device_create_file(&of_dev->dev, &dev_attr_gpu_temperature);
- device_create_file(&of_dev->dev, &dev_attr_cpu_limit);
- device_create_file(&of_dev->dev, &dev_attr_gpu_limit);
+ device_create_file(&of_dev->dev, &dev_attr_sensor1_temperature);
+ device_create_file(&of_dev->dev, &dev_attr_sensor2_temperature);
+ device_create_file(&of_dev->dev, &dev_attr_sensor1_limit);
+ device_create_file(&of_dev->dev, &dev_attr_sensor2_limit);
+ device_create_file(&of_dev->dev, &dev_attr_sensor1_location);
+ device_create_file(&of_dev->dev, &dev_attr_sensor2_location);
device_create_file(&of_dev->dev, &dev_attr_limit_adjust);
device_create_file(&of_dev->dev, &dev_attr_specified_fan_speed);
- device_create_file(&of_dev->dev, &dev_attr_cpu_fan_speed);
+ device_create_file(&of_dev->dev, &dev_attr_sensor1_fan_speed);
if(therm_type == ADT7460)
- device_create_file(&of_dev->dev, &dev_attr_gpu_fan_speed);
+ device_create_file(&of_dev->dev, &dev_attr_sensor2_fan_speed);
#ifndef CONFIG_I2C_KEYWEST
request_module("i2c-keywest");
@@ -591,17 +630,19 @@ static void __exit
thermostat_exit(void)
{
if (of_dev) {
- device_remove_file(&of_dev->dev, &dev_attr_cpu_temperature);
- device_remove_file(&of_dev->dev, &dev_attr_gpu_temperature);
- device_remove_file(&of_dev->dev, &dev_attr_cpu_limit);
- device_remove_file(&of_dev->dev, &dev_attr_gpu_limit);
+ device_remove_file(&of_dev->dev, &dev_attr_sensor1_temperature);
+ device_remove_file(&of_dev->dev, &dev_attr_sensor2_temperature);
+ device_remove_file(&of_dev->dev, &dev_attr_sensor1_limit);
+ device_remove_file(&of_dev->dev, &dev_attr_sensor2_limit);
+ device_remove_file(&of_dev->dev, &dev_attr_sensor1_location);
+ device_remove_file(&of_dev->dev, &dev_attr_sensor2_location);
device_remove_file(&of_dev->dev, &dev_attr_limit_adjust);
device_remove_file(&of_dev->dev, &dev_attr_specified_fan_speed);
- device_remove_file(&of_dev->dev, &dev_attr_cpu_fan_speed);
+ device_remove_file(&of_dev->dev, &dev_attr_sensor1_fan_speed);
if(therm_type == ADT7460)
device_remove_file(&of_dev->dev,
- &dev_attr_gpu_fan_speed);
+ &dev_attr_sensor2_fan_speed);
of_device_unregister(of_dev);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 13:27:36 +0100