vserver 2.0 rc7
[linux-2.6.git] / drivers / macintosh / therm_adt746x.c
index cce6b36..d09308f 100644 (file)
 #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)
@@ -545,16 +559,47 @@ 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;
-       therm_bus = ((*prop) >> 8) & 0x0f;
+
+       /* look for bus either by path or using "reg" */
+       if (strstr(np->full_name, "/i2c-bus@") != NULL) {
+               const char *tmp_bus = (strstr(np->full_name, "/i2c-bus@") + 9);
+               therm_bus = tmp_bus[0]-'0';
+       } else {
+               therm_bus = ((*prop) >> 8) & 0x0f;
+       }
+
        therm_address = ((*prop) & 0xff) >> 1;
 
        printk(KERN_INFO "adt746x: Thermostat bus: %d, address: 0x%02x, "
                         "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) {
@@ -562,15 +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");
@@ -583,17 +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);
        }