*
*/
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/spinlock.h>
-#include <linux/smp_lock.h>
#include <linux/wait.h>
#include <linux/suspend.h>
#include <linux/kthread.h>
#include <linux/moduleparam.h>
+#include <linux/freezer.h>
+#include <linux/of_platform.h>
#include <asm/prom.h>
#include <asm/machdep.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/sections.h>
-#include <asm/of_device.h>
#undef DEBUG
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 const char *sensor_location[3];
-static int limit_adjust = 0;
+static int limit_adjust;
static int fan_speed = -1;
+static int verbose;
MODULE_AUTHOR("Colin Leroy <colin@colino.net>");
MODULE_DESCRIPTION("Driver for ADT746x thermostat in iBook G4 and "
MODULE_PARM_DESC(fan_speed,"Specify starting fan speed (0-255) "
"(default 64)");
+module_param(verbose, bool, 0);
+MODULE_PARM_DESC(verbose,"Verbose log operations "
+ "(default 0)");
+
struct thermostat {
struct i2c_client clt;
u8 temps[3];
if (thread_therm != NULL) {
kthread_stop(thread_therm);
}
-
+
printk(KERN_INFO "adt746x: Putting max temperatures back from "
"%d, %d, %d to %d, %d, %d\n",
th->limits[0], th->limits[1], th->limits[2],
th->initial_limits[0], th->initial_limits[1],
th->initial_limits[2]);
-
+
for (i = 0; i < 3; i++)
write_reg(th, LIMIT_REG[i], th->initial_limits[i]);
static struct i2c_driver thermostat_driver = {
.driver = {
- .owner = THIS_MODULE,
.name = "therm_adt746x",
},
.attach_adapter = attach_thermostat,
return;
if (th->last_speed[fan] != speed) {
- if (speed == -1)
- printk(KERN_DEBUG "adt746x: Setting speed to automatic "
- "for %s fan.\n", sensor_location[fan+1]);
- else
- printk(KERN_DEBUG "adt746x: Setting speed to %d "
- "for %s fan.\n", speed, sensor_location[fan+1]);
+ if (verbose) {
+ if (speed == -1)
+ printk(KERN_DEBUG "adt746x: Setting speed to automatic "
+ "for %s fan.\n", sensor_location[fan+1]);
+ else
+ printk(KERN_DEBUG "adt746x: Setting speed to %d "
+ "for %s fan.\n", speed, sensor_location[fan+1]);
+ }
} else
return;
if (new_speed > 255)
new_speed = 255;
- printk(KERN_DEBUG "adt746x: setting fans speed to %d "
- "(limit exceeded by %d on %s) \n",
- new_speed, var,
- sensor_location[fan_number+1]);
+ if (verbose)
+ printk(KERN_DEBUG "adt746x: Setting fans speed to %d "
+ "(limit exceeded by %d on %s) \n",
+ new_speed, var,
+ sensor_location[fan_number+1]);
write_both_fan_speed(th, new_speed);
th->last_var[fan_number] = var;
} else if (var < -2) {
* so cold (lastvar >= -1) */
if (i == 2 && lastvar < -1) {
if (th->last_speed[fan_number] != 0)
- printk(KERN_DEBUG "adt746x: Stopping "
- "fans.\n");
+ if (verbose)
+ printk(KERN_DEBUG "adt746x: Stopping "
+ "fans.\n");
write_both_fan_speed(th, 0);
}
}
{
struct thermostat* th = arg;
+ set_freezable();
while(!kthread_should_stop()) {
try_to_freeze();
msleep_interruptible(2000);
if (thermostat)
return 0;
- th = (struct thermostat *)
- kmalloc(sizeof(struct thermostat), GFP_KERNEL);
-
+ th = kzalloc(sizeof(struct thermostat), GFP_KERNEL);
if (!th)
return -ENOMEM;
- memset(th, 0, sizeof(*th));
th->clt.addr = addr;
th->clt.adapter = adapter;
th->clt.driver = &thermostat_driver;
th->initial_limits[i] = read_reg(th, LIMIT_REG[i]);
set_limit(th, i);
}
-
+
printk(KERN_INFO "adt746x: Lowering max temperatures from %d, %d, %d"
" to %d, %d, %d\n",
th->initial_limits[0], th->initial_limits[1],
#define BUILD_STORE_FUNC_INT(name, data) \
static ssize_t store_##name(struct device *dev, struct device_attribute *attr, const char *buf, size_t n) \
{ \
- u32 val; \
- val = simple_strtoul(buf, NULL, 10); \
+ int val; \
+ val = simple_strtol(buf, NULL, 10); \
if (val < 0 || val > 255) \
return -EINVAL; \
printk(KERN_INFO "Setting specified fan speed to %d\n", val); \
thermostat_init(void)
{
struct device_node* np;
- u32 *prop;
+ const u32 *prop;
int i = 0, offset = 0;
-
+ int err;
+
np = of_find_node_by_name(NULL, "fan");
if (!np)
return -ENODEV;
- if (device_is_compatible(np, "adt7460"))
+ if (of_device_is_compatible(np, "adt7460"))
therm_type = ADT7460;
- else if (device_is_compatible(np, "adt7467"))
+ else if (of_device_is_compatible(np, "adt7467"))
therm_type = ADT7467;
- else
+ else {
+ of_node_put(np);
return -ENODEV;
+ }
- prop = (u32 *)get_property(np, "hwsensor-params-version", NULL);
+ prop = of_get_property(np, "hwsensor-params-version", NULL);
printk(KERN_INFO "adt746x: version %d (%ssupported)\n", *prop,
(*prop == 1)?"":"un");
- if (*prop != 1)
+ if (*prop != 1) {
+ of_node_put(np);
return -ENODEV;
+ }
- prop = (u32 *)get_property(np, "reg", NULL);
- if (!prop)
+ prop = of_get_property(np, "reg", NULL);
+ if (!prop) {
+ of_node_put(np);
return -ENODEV;
+ }
/* look for bus either by path or using "reg" */
if (strstr(np->full_name, "/i2c-bus@") != NULL) {
"limit_adjust: %d, fan_speed: %d\n",
therm_bus, therm_address, limit_adjust, fan_speed);
- if (get_property(np, "hwsensor-location", NULL)) {
+ if (of_get_property(np, "hwsensor-location", NULL)) {
for (i = 0; i < 3; i++) {
- sensor_location[i] = get_property(np,
+ sensor_location[i] = of_get_property(np,
"hwsensor-location", NULL) + offset;
if (sensor_location[i] == NULL)
}
of_dev = of_platform_device_create(np, "temperatures", NULL);
-
+ of_node_put(np);
+
if (of_dev == NULL) {
printk(KERN_ERR "Can't register temperatures device !\n");
return -ENODEV;
}
-
- 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_sensor1_fan_speed);
+
+ err = device_create_file(&of_dev->dev, &dev_attr_sensor1_temperature);
+ err |= device_create_file(&of_dev->dev, &dev_attr_sensor2_temperature);
+ err |= device_create_file(&of_dev->dev, &dev_attr_sensor1_limit);
+ err |= device_create_file(&of_dev->dev, &dev_attr_sensor2_limit);
+ err |= device_create_file(&of_dev->dev, &dev_attr_sensor1_location);
+ err |= device_create_file(&of_dev->dev, &dev_attr_sensor2_location);
+ err |= device_create_file(&of_dev->dev, &dev_attr_limit_adjust);
+ err |= device_create_file(&of_dev->dev, &dev_attr_specified_fan_speed);
+ err |= device_create_file(&of_dev->dev, &dev_attr_sensor1_fan_speed);
if(therm_type == ADT7460)
- device_create_file(&of_dev->dev, &dev_attr_sensor2_fan_speed);
+ err |= device_create_file(&of_dev->dev, &dev_attr_sensor2_fan_speed);
+ if (err)
+ printk(KERN_WARNING
+ "Failed to create tempertaure attribute file(s).\n");
-#ifndef CONFIG_I2C_KEYWEST
- request_module("i2c-keywest");
+#ifndef CONFIG_I2C_POWERMAC
+ request_module("i2c-powermac");
#endif
return i2c_add_driver(&thermostat_driver);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff