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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-06 11:33:09 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-06 11:33:09 -0800
commitdff6d1c5ef9116a4478908001d72ee67127ecf01 (patch)
tree43c6e7ff8e8059f8fd733efd45b51f84b510d305 /drivers/hwmon
parent66ce3cf84deba6cc71dcf43c9d56a4278e5f712d (diff)
parenta0a5e3488a51c46f383c5faa86b53828e30ce153 (diff)
downloadop-kernel-dev-dff6d1c5ef9116a4478908001d72ee67127ecf01.zip
op-kernel-dev-dff6d1c5ef9116a4478908001d72ee67127ecf01.tar.gz
Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: (23 commits) hwmon: Remove the deprecated adt7473 driver hwmon: Fix off-by-one kind values hwmon: (tmp421) Fix temperature conversions hwmon: (tmp421) Restore missing inputs hwmon: Driver for Andigilog aSC7621 family monitoring chips hwmon: (adt7411) Improve locking hwmon: Add driver for ADT7411 voltage and temperature sensor hwmon: (w83793) Add watchdog functionality hwmon: (g760a) Make rpm_from_cnt static hwmon: (it87) Validate auto pwm settings hwmon: (it87) Add support for old automatic fan speed control hwmon: (it87) Drop dead web links in documentation hwmon: (it87) Add an entry in MAINTAINERS hwmon: (it87) Use strict_strtol instead of simple_strtol hwmon: (it87) Fix many checkpatch errors and warnings hwmon: (it87) Add support for beep on alarm hwmon: (it87) Create vid attributes by group hwmon: (it87) Refactor attributes creation and removal hwmon: (it87) Expose the PWM/temperature mappings hwmon: (it87) Display fan outputs in automatic mode as such ...
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/Kconfig45
-rw-r--r--drivers/hwmon/Makefile3
-rw-r--r--drivers/hwmon/adt7411.c366
-rw-r--r--drivers/hwmon/adt7473.c1180
-rw-r--r--drivers/hwmon/asc7621.c1255
-rw-r--r--drivers/hwmon/fschmd.c15
-rw-r--r--drivers/hwmon/g760a.c2
-rw-r--r--drivers/hwmon/it87.c939
-rw-r--r--drivers/hwmon/lm90.c89
-rw-r--r--drivers/hwmon/tmp401.c7
-rw-r--r--drivers/hwmon/tmp421.c24
-rw-r--r--drivers/hwmon/w83793.c482
12 files changed, 2923 insertions, 1484 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 68cf877..e4595e6 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -170,6 +170,16 @@ config SENSORS_ADM9240
This driver can also be built as a module. If so, the module
will be called adm9240.
+config SENSORS_ADT7411
+ tristate "Analog Devices ADT7411"
+ depends on I2C && EXPERIMENTAL
+ help
+ If you say yes here you get support for the Analog Devices
+ ADT7411 voltage and temperature monitoring chip.
+
+ This driver can also be built as a module. If so, the module
+ will be called adt7411.
+
config SENSORS_ADT7462
tristate "Analog Devices ADT7462"
depends on I2C && EXPERIMENTAL
@@ -190,20 +200,6 @@ config SENSORS_ADT7470
This driver can also be built as a module. If so, the module
will be called adt7470.
-config SENSORS_ADT7473
- tristate "Analog Devices ADT7473 (DEPRECATED)"
- depends on I2C && EXPERIMENTAL
- select SENSORS_ADT7475
- help
- If you say yes here you get support for the Analog Devices
- ADT7473 temperature monitoring chips.
-
- This driver is deprecated, you should use the adt7475 driver
- instead.
-
- This driver can also be built as a module. If so, the module
- will be called adt7473.
-
config SENSORS_ADT7475
tristate "Analog Devices ADT7473, ADT7475, ADT7476 and ADT7490"
depends on I2C && EXPERIMENTAL
@@ -216,6 +212,19 @@ config SENSORS_ADT7475
This driver can also be build as a module. If so, the module
will be called adt7475.
+config SENSORS_ASC7621
+ tristate "Andigilog aSC7621"
+ depends on HWMON && I2C
+ help
+ If you say yes here you get support for the aSC7621
+ family of SMBus sensors chip found on most Intel X48, X38, 975,
+ 965 and 945 desktop boards. Currently supported chips:
+ aSC7621
+ aSC7621a
+
+ This driver can also be built as a module. If so, the module
+ will be called asc7621.
+
config SENSORS_K8TEMP
tristate "AMD Athlon64/FX or Opteron temperature sensor"
depends on X86 && PCI && EXPERIMENTAL
@@ -563,9 +572,10 @@ config SENSORS_LM90
depends on I2C
help
If you say yes here you get support for National Semiconductor LM90,
- LM86, LM89 and LM99, Analog Devices ADM1032 and ADT7461, and Maxim
+ LM86, LM89 and LM99, Analog Devices ADM1032 and ADT7461, Maxim
MAX6646, MAX6647, MAX6648, MAX6649, MAX6657, MAX6658, MAX6659,
- MAX6680, MAX6681 and MAX6692 sensor chips.
+ MAX6680, MAX6681 and MAX6692, and Winbond/Nuvoton W83L771AWG/ASG
+ sensor chips.
This driver can also be built as a module. If so, the module
will be called lm90.
@@ -909,7 +919,8 @@ config SENSORS_W83793
select HWMON_VID
help
If you say yes here you get support for the Winbond W83793
- hardware monitoring chip.
+ hardware monitoring chip, including support for the integrated
+ watchdog.
This driver can also be built as a module. If so, the module
will be called w83793.
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index 4bc215c..4aa1a3d 100644
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -29,12 +29,13 @@ obj-$(CONFIG_SENSORS_ADM1029) += adm1029.o
obj-$(CONFIG_SENSORS_ADM1031) += adm1031.o
obj-$(CONFIG_SENSORS_ADM9240) += adm9240.o
obj-$(CONFIG_SENSORS_ADS7828) += ads7828.o
+obj-$(CONFIG_SENSORS_ADT7411) += adt7411.o
obj-$(CONFIG_SENSORS_ADT7462) += adt7462.o
obj-$(CONFIG_SENSORS_ADT7470) += adt7470.o
-obj-$(CONFIG_SENSORS_ADT7473) += adt7473.o
obj-$(CONFIG_SENSORS_ADT7475) += adt7475.o
obj-$(CONFIG_SENSORS_APPLESMC) += applesmc.o
obj-$(CONFIG_SENSORS_AMS) += ams/
+obj-$(CONFIG_SENSORS_ASC7621) += asc7621.o
obj-$(CONFIG_SENSORS_ATXP1) += atxp1.o
obj-$(CONFIG_SENSORS_CORETEMP) += coretemp.o
obj-$(CONFIG_SENSORS_DME1737) += dme1737.o
diff --git a/drivers/hwmon/adt7411.c b/drivers/hwmon/adt7411.c
new file mode 100644
index 0000000..3471884
--- /dev/null
+++ b/drivers/hwmon/adt7411.c
@@ -0,0 +1,366 @@
+/*
+ * Driver for the ADT7411 (I2C/SPI 8 channel 10 bit ADC & temperature-sensor)
+ *
+ * Copyright (C) 2008, 2010 Pengutronix
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * TODO: SPI, support for external temperature sensor
+ * use power-down mode for suspend?, interrupt handling?
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+#include <linux/mutex.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+
+#define ADT7411_REG_INT_TEMP_VDD_LSB 0x03
+#define ADT7411_REG_EXT_TEMP_AIN14_LSB 0x04
+#define ADT7411_REG_VDD_MSB 0x06
+#define ADT7411_REG_INT_TEMP_MSB 0x07
+#define ADT7411_REG_EXT_TEMP_AIN1_MSB 0x08
+
+#define ADT7411_REG_CFG1 0x18
+#define ADT7411_CFG1_START_MONITOR (1 << 0)
+
+#define ADT7411_REG_CFG2 0x19
+#define ADT7411_CFG2_DISABLE_AVG (1 << 5)
+
+#define ADT7411_REG_CFG3 0x1a
+#define ADT7411_CFG3_ADC_CLK_225 (1 << 0)
+#define ADT7411_CFG3_REF_VDD (1 << 4)
+
+#define ADT7411_REG_DEVICE_ID 0x4d
+#define ADT7411_REG_MANUFACTURER_ID 0x4e
+
+#define ADT7411_DEVICE_ID 0x2
+#define ADT7411_MANUFACTURER_ID 0x41
+
+static const unsigned short normal_i2c[] = { 0x48, 0x4a, 0x4b, I2C_CLIENT_END };
+
+struct adt7411_data {
+ struct mutex device_lock; /* for "atomic" device accesses */
+ struct mutex update_lock;
+ unsigned long next_update;
+ int vref_cached;
+ struct device *hwmon_dev;
+};
+
+/*
+ * When reading a register containing (up to 4) lsb, all associated
+ * msb-registers get locked by the hardware. After _one_ of those msb is read,
+ * _all_ are unlocked. In order to use this locking correctly, reading lsb/msb
+ * is protected here with a mutex, too.
+ */
+static int adt7411_read_10_bit(struct i2c_client *client, u8 lsb_reg,
+ u8 msb_reg, u8 lsb_shift)
+{
+ struct adt7411_data *data = i2c_get_clientdata(client);
+ int val, tmp;
+
+ mutex_lock(&data->device_lock);
+
+ val = i2c_smbus_read_byte_data(client, lsb_reg);
+ if (val < 0)
+ goto exit_unlock;
+
+ tmp = (val >> lsb_shift) & 3;
+ val = i2c_smbus_read_byte_data(client, msb_reg);
+
+ if (val >= 0)
+ val = (val << 2) | tmp;
+
+ exit_unlock:
+ mutex_unlock(&data->device_lock);
+
+ return val;
+}
+
+static int adt7411_modify_bit(struct i2c_client *client, u8 reg, u8 bit,
+ bool flag)
+{
+ struct adt7411_data *data = i2c_get_clientdata(client);
+ int ret, val;
+
+ mutex_lock(&data->device_lock);
+
+ ret = i2c_smbus_read_byte_data(client, reg);
+ if (ret < 0)
+ goto exit_unlock;
+
+ if (flag)
+ val = ret | bit;
+ else
+ val = ret & ~bit;
+
+ ret = i2c_smbus_write_byte_data(client, reg, val);
+
+ exit_unlock:
+ mutex_unlock(&data->device_lock);
+ return ret;
+}
+
+static ssize_t adt7411_show_vdd(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ int ret = adt7411_read_10_bit(client, ADT7411_REG_INT_TEMP_VDD_LSB,
+ ADT7411_REG_VDD_MSB, 2);
+
+ return ret < 0 ? ret : sprintf(buf, "%u\n", ret * 7000 / 1024);
+}
+
+static ssize_t adt7411_show_temp(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ int val = adt7411_read_10_bit(client, ADT7411_REG_INT_TEMP_VDD_LSB,
+ ADT7411_REG_INT_TEMP_MSB, 0);
+
+ if (val < 0)
+ return val;
+
+ val = val & 0x200 ? val - 0x400 : val; /* 10 bit signed */
+
+ return sprintf(buf, "%d\n", val * 250);
+}
+
+static ssize_t adt7411_show_input(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int nr = to_sensor_dev_attr(attr)->index;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adt7411_data *data = i2c_get_clientdata(client);
+ int val;
+ u8 lsb_reg, lsb_shift;
+
+ mutex_lock(&data->update_lock);
+ if (time_after_eq(jiffies, data->next_update)) {
+ val = i2c_smbus_read_byte_data(client, ADT7411_REG_CFG3);
+ if (val < 0)
+ goto exit_unlock;
+
+ if (val & ADT7411_CFG3_REF_VDD) {
+ val = adt7411_read_10_bit(client,
+ ADT7411_REG_INT_TEMP_VDD_LSB,
+ ADT7411_REG_VDD_MSB, 2);
+ if (val < 0)
+ goto exit_unlock;
+
+ data->vref_cached = val * 7000 / 1024;
+ } else {
+ data->vref_cached = 2250;
+ }
+
+ data->next_update = jiffies + HZ;
+ }
+
+ lsb_reg = ADT7411_REG_EXT_TEMP_AIN14_LSB + (nr >> 2);
+ lsb_shift = 2 * (nr & 0x03);
+ val = adt7411_read_10_bit(client, lsb_reg,
+ ADT7411_REG_EXT_TEMP_AIN1_MSB + nr, lsb_shift);
+ if (val < 0)
+ goto exit_unlock;
+
+ val = sprintf(buf, "%u\n", val * data->vref_cached / 1024);
+ exit_unlock:
+ mutex_unlock(&data->update_lock);
+ return val;
+}
+
+static ssize_t adt7411_show_bit(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct sensor_device_attribute_2 *attr2 = to_sensor_dev_attr_2(attr);
+ struct i2c_client *client = to_i2c_client(dev);
+ int ret = i2c_smbus_read_byte_data(client, attr2->index);
+
+ return ret < 0 ? ret : sprintf(buf, "%u\n", !!(ret & attr2->nr));
+}
+
+static ssize_t adt7411_set_bit(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
+{
+ struct sensor_device_attribute_2 *s_attr2 = to_sensor_dev_attr_2(attr);
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adt7411_data *data = i2c_get_clientdata(client);
+ int ret;
+ unsigned long flag;
+
+ ret = strict_strtoul(buf, 0, &flag);
+ if (ret || flag > 1)
+ return -EINVAL;
+
+ ret = adt7411_modify_bit(client, s_attr2->index, s_attr2->nr, flag);
+
+ /* force update */
+ mutex_lock(&data->update_lock);
+ data->next_update = jiffies;
+ mutex_unlock(&data->update_lock);
+
+ return ret < 0 ? ret : count;
+}
+
+#define ADT7411_BIT_ATTR(__name, __reg, __bit) \
+ SENSOR_DEVICE_ATTR_2(__name, S_IRUGO | S_IWUSR, adt7411_show_bit, \
+ adt7411_set_bit, __bit, __reg)
+
+static DEVICE_ATTR(temp1_input, S_IRUGO, adt7411_show_temp, NULL);
+static DEVICE_ATTR(in0_input, S_IRUGO, adt7411_show_vdd, NULL);
+static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, adt7411_show_input, NULL, 0);
+static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, adt7411_show_input, NULL, 1);
+static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, adt7411_show_input, NULL, 2);
+static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, adt7411_show_input, NULL, 3);
+static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, adt7411_show_input, NULL, 4);
+static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, adt7411_show_input, NULL, 5);
+static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, adt7411_show_input, NULL, 6);
+static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, adt7411_show_input, NULL, 7);
+static ADT7411_BIT_ATTR(no_average, ADT7411_REG_CFG2, ADT7411_CFG2_DISABLE_AVG);
+static ADT7411_BIT_ATTR(fast_sampling, ADT7411_REG_CFG3, ADT7411_CFG3_ADC_CLK_225);
+static ADT7411_BIT_ATTR(adc_ref_vdd, ADT7411_REG_CFG3, ADT7411_CFG3_REF_VDD);
+
+static struct attribute *adt7411_attrs[] = {
+ &dev_attr_temp1_input.attr,
+ &dev_attr_in0_input.attr,
+ &sensor_dev_attr_in1_input.dev_attr.attr,
+ &sensor_dev_attr_in2_input.dev_attr.attr,
+ &sensor_dev_attr_in3_input.dev_attr.attr,
+ &sensor_dev_attr_in4_input.dev_attr.attr,
+ &sensor_dev_attr_in5_input.dev_attr.attr,
+ &sensor_dev_attr_in6_input.dev_attr.attr,
+ &sensor_dev_attr_in7_input.dev_attr.attr,
+ &sensor_dev_attr_in8_input.dev_attr.attr,
+ &sensor_dev_attr_no_average.dev_attr.attr,
+ &sensor_dev_attr_fast_sampling.dev_attr.attr,
+ &sensor_dev_attr_adc_ref_vdd.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group adt7411_attr_grp = {
+ .attrs = adt7411_attrs,
+};
+
+static int adt7411_detect(struct i2c_client *client,
+ struct i2c_board_info *info)
+{
+ int val;
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -ENODEV;
+
+ val = i2c_smbus_read_byte_data(client, ADT7411_REG_MANUFACTURER_ID);
+ if (val < 0 || val != ADT7411_MANUFACTURER_ID) {
+ dev_dbg(&client->dev, "Wrong manufacturer ID. Got %d, "
+ "expected %d\n", val, ADT7411_MANUFACTURER_ID);
+ return -ENODEV;
+ }
+
+ val = i2c_smbus_read_byte_data(client, ADT7411_REG_DEVICE_ID);
+ if (val < 0 || val != ADT7411_DEVICE_ID) {
+ dev_dbg(&client->dev, "Wrong device ID. Got %d, "
+ "expected %d\n", val, ADT7411_DEVICE_ID);
+ return -ENODEV;
+ }
+
+ strlcpy(info->type, "adt7411", I2C_NAME_SIZE);
+
+ return 0;
+}
+
+static int __devinit adt7411_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct adt7411_data *data;
+ int ret;
+
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ i2c_set_clientdata(client, data);
+ mutex_init(&data->device_lock);
+ mutex_init(&data->update_lock);
+
+ ret = adt7411_modify_bit(client, ADT7411_REG_CFG1,
+ ADT7411_CFG1_START_MONITOR, 1);
+ if (ret < 0)
+ goto exit_free;
+
+ /* force update on first occasion */
+ data->next_update = jiffies;
+
+ ret = sysfs_create_group(&client->dev.kobj, &adt7411_attr_grp);
+ if (ret)
+ goto exit_free;
+
+ data->hwmon_dev = hwmon_device_register(&client->dev);
+ if (IS_ERR(data->hwmon_dev)) {
+ ret = PTR_ERR(data->hwmon_dev);
+ goto exit_remove;
+ }
+
+ dev_info(&client->dev, "successfully registered\n");
+
+ return 0;
+
+ exit_remove:
+ sysfs_remove_group(&client->dev.kobj, &adt7411_attr_grp);
+ exit_free:
+ i2c_set_clientdata(client, NULL);
+ kfree(data);
+ return ret;
+}
+
+static int __devexit adt7411_remove(struct i2c_client *client)
+{
+ struct adt7411_data *data = i2c_get_clientdata(client);
+
+ hwmon_device_unregister(data->hwmon_dev);
+ sysfs_remove_group(&client->dev.kobj, &adt7411_attr_grp);
+ i2c_set_clientdata(client, NULL);
+ kfree(data);
+ return 0;
+}
+
+static const struct i2c_device_id adt7411_id[] = {
+ { "adt7411", 0 },
+ { }
+};
+
+static struct i2c_driver adt7411_driver = {
+ .driver = {
+ .name = "adt7411",
+ },
+ .probe = adt7411_probe,
+ .remove = __devexit_p(adt7411_remove),
+ .id_table = adt7411_id,
+ .detect = adt7411_detect,
+ .address_list = normal_i2c,
+ .class = I2C_CLASS_HWMON,
+};
+
+static int __init sensors_adt7411_init(void)
+{
+ return i2c_add_driver(&adt7411_driver);
+}
+module_init(sensors_adt7411_init)
+
+static void __exit sensors_adt7411_exit(void)
+{
+ i2c_del_driver(&adt7411_driver);
+}
+module_exit(sensors_adt7411_exit)
+
+MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de> and "
+ "Wolfram Sang <w.sang@pengutronix.de>");
+MODULE_DESCRIPTION("ADT7411 driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/hwmon/adt7473.c b/drivers/hwmon/adt7473.c
deleted file mode 100644
index 434576f..0000000
--- a/drivers/hwmon/adt7473.c
+++ /dev/null
@@ -1,1180 +0,0 @@
-/*
- * A hwmon driver for the Analog Devices ADT7473
- * Copyright (C) 2007 IBM
- *
- * Author: Darrick J. Wong <djwong@us.ibm.com>
- *
- * 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
- */
-
-#include <linux/module.h>
-#include <linux/jiffies.h>
-#include <linux/i2c.h>
-#include <linux/hwmon.h>
-#include <linux/hwmon-sysfs.h>
-#include <linux/err.h>
-#include <linux/mutex.h>
-#include <linux/delay.h>
-#include <linux/log2.h>
-
-/* Addresses to scan */
-static const unsigned short normal_i2c[] = { 0x2C, 0x2D, 0x2E, I2C_CLIENT_END };
-
-/* ADT7473 registers */
-#define ADT7473_REG_BASE_ADDR 0x20
-
-#define ADT7473_REG_VOLT_BASE_ADDR 0x21
-#define ADT7473_REG_VOLT_MIN_BASE_ADDR 0x46
-
-#define ADT7473_REG_TEMP_BASE_ADDR 0x25
-#define ADT7473_REG_TEMP_LIMITS_BASE_ADDR 0x4E
-#define ADT7473_REG_TEMP_TMIN_BASE_ADDR 0x67
-#define ADT7473_REG_TEMP_TMAX_BASE_ADDR 0x6A
-
-#define ADT7473_REG_FAN_BASE_ADDR 0x28
-#define ADT7473_REG_FAN_MIN_BASE_ADDR 0x54
-
-#define ADT7473_REG_PWM_BASE_ADDR 0x30
-#define ADT7473_REG_PWM_MIN_BASE_ADDR 0x64
-#define ADT7473_REG_PWM_MAX_BASE_ADDR 0x38
-#define ADT7473_REG_PWM_BHVR_BASE_ADDR 0x5C
-#define ADT7473_PWM_BHVR_MASK 0xE0
-#define ADT7473_PWM_BHVR_SHIFT 5
-
-#define ADT7473_REG_CFG1 0x40
-#define ADT7473_CFG1_START 0x01
-#define ADT7473_CFG1_READY 0x04
-#define ADT7473_REG_CFG2 0x73
-#define ADT7473_REG_CFG3 0x78
-#define ADT7473_REG_CFG4 0x7D
-#define ADT7473_CFG4_MAX_DUTY_AT_OVT 0x08
-#define ADT7473_REG_CFG5 0x7C
-#define ADT7473_CFG5_TEMP_TWOS 0x01
-#define ADT7473_CFG5_TEMP_OFFSET 0x02
-
-#define ADT7473_REG_DEVICE 0x3D
-#define ADT7473_VENDOR 0x41
-#define ADT7473_REG_VENDOR 0x3E
-#define ADT7473_DEVICE 0x73
-#define ADT7473_REG_REVISION 0x3F
-#define ADT7473_REV_68 0x68
-#define ADT7473_REV_69 0x69
-
-#define ADT7473_REG_ALARM1 0x41
-#define ADT7473_VCCP_ALARM 0x02
-#define ADT7473_VCC_ALARM 0x04
-#define ADT7473_R1T_ALARM 0x10
-#define ADT7473_LT_ALARM 0x20
-#define ADT7473_R2T_ALARM 0x40
-#define ADT7473_OOL 0x80
-#define ADT7473_REG_ALARM2 0x42
-#define ADT7473_OVT_ALARM 0x02
-#define ADT7473_FAN1_ALARM 0x04
-#define ADT7473_FAN2_ALARM 0x08
-#define ADT7473_FAN3_ALARM 0x10
-#define ADT7473_FAN4_ALARM 0x20
-#define ADT7473_R1T_SHORT 0x40
-#define ADT7473_R2T_SHORT 0x80
-
-#define ALARM2(x) ((x) << 8)
-
-#define ADT7473_VOLT_COUNT 2
-#define ADT7473_REG_VOLT(x) (ADT7473_REG_VOLT_BASE_ADDR + (x))
-#define ADT7473_REG_VOLT_MIN(x) (ADT7473_REG_VOLT_MIN_BASE_ADDR + ((x) * 2))
-#define ADT7473_REG_VOLT_MAX(x) (ADT7473_REG_VOLT_MIN_BASE_ADDR + \
- ((x) * 2) + 1)
-
-#define ADT7473_TEMP_COUNT 3
-#define ADT7473_REG_TEMP(x) (ADT7473_REG_TEMP_BASE_ADDR + (x))
-#define ADT7473_REG_TEMP_MIN(x) (ADT7473_REG_TEMP_LIMITS_BASE_ADDR + ((x) * 2))
-#define ADT7473_REG_TEMP_MAX(x) (ADT7473_REG_TEMP_LIMITS_BASE_ADDR + \
- ((x) * 2) + 1)
-#define ADT7473_REG_TEMP_TMIN(x) (ADT7473_REG_TEMP_TMIN_BASE_ADDR + (x))
-#define ADT7473_REG_TEMP_TMAX(x) (ADT7473_REG_TEMP_TMAX_BASE_ADDR + (x))
-
-#define ADT7473_FAN_COUNT 4
-#define ADT7473_REG_FAN(x) (ADT7473_REG_FAN_BASE_ADDR + ((x) * 2))
-#define ADT7473_REG_FAN_MIN(x) (ADT7473_REG_FAN_MIN_BASE_ADDR + ((x) * 2))
-
-#define ADT7473_PWM_COUNT 3
-#define ADT7473_REG_PWM(x) (ADT7473_REG_PWM_BASE_ADDR + (x))
-#define ADT7473_REG_PWM_MAX(x) (ADT7473_REG_PWM_MAX_BASE_ADDR + (x))
-#define ADT7473_REG_PWM_MIN(x) (ADT7473_REG_PWM_MIN_BASE_ADDR + (x))
-#define ADT7473_REG_PWM_BHVR(x) (ADT7473_REG_PWM_BHVR_BASE_ADDR + (x))
-
-/* How often do we reread sensors values? (In jiffies) */
-#define SENSOR_REFRESH_INTERVAL (2 * HZ)
-
-/* How often do we reread sensor limit values? (In jiffies) */
-#define LIMIT_REFRESH_INTERVAL (60 * HZ)
-
-/* datasheet says to divide this number by the fan reading to get fan rpm */
-#define FAN_PERIOD_TO_RPM(x) ((90000 * 60) / (x))
-#define FAN_RPM_TO_PERIOD FAN_PERIOD_TO_RPM
-#define FAN_PERIOD_INVALID 65535
-#define FAN_DATA_VALID(x) ((x) && (x) != FAN_PERIOD_INVALID)
-
-struct adt7473_data {
- struct device *hwmon_dev;
- struct attribute_group attrs;
- struct mutex lock;
- char sensors_valid;
- char limits_valid;
- unsigned long sensors_last_updated; /* In jiffies */
- unsigned long limits_last_updated; /* In jiffies */
-
- u8 volt[ADT7473_VOLT_COUNT];
- s8 volt_min[ADT7473_VOLT_COUNT];
- s8 volt_max[ADT7473_VOLT_COUNT];
-
- s8 temp[ADT7473_TEMP_COUNT];
- s8 temp_min[ADT7473_TEMP_COUNT];
- s8 temp_max[ADT7473_TEMP_COUNT];
- s8 temp_tmin[ADT7473_TEMP_COUNT];
- /* This is called the !THERM limit in the datasheet */
- s8 temp_tmax[ADT7473_TEMP_COUNT];
-
- u16 fan[ADT7473_FAN_COUNT];
- u16 fan_min[ADT7473_FAN_COUNT];
-
- u8 pwm[ADT7473_PWM_COUNT];
- u8 pwm_max[ADT7473_PWM_COUNT];
- u8 pwm_min[ADT7473_PWM_COUNT];
- u8 pwm_behavior[ADT7473_PWM_COUNT];
-
- u8 temp_twos_complement;
- u8 temp_offset;
-
- u16 alarm;
- u8 max_duty_at_overheat;
-};
-
-static int adt7473_probe(struct i2c_client *client,
- const struct i2c_device_id *id);
-static int adt7473_detect(struct i2c_client *client,
- struct i2c_board_info *info);
-static int adt7473_remove(struct i2c_client *client);
-
-static const struct i2c_device_id adt7473_id[] = {
- { "adt7473", 0 },
- { }
-};
-
-static struct i2c_driver adt7473_driver = {
- .class = I2C_CLASS_HWMON,
- .driver = {
- .name = "adt7473",
- },
- .probe = adt7473_probe,
- .remove = adt7473_remove,
- .id_table = adt7473_id,
- .detect = adt7473_detect,
- .address_list = normal_i2c,
-};
-
-/*
- * 16-bit registers on the ADT7473 are low-byte first. The data sheet says
- * that the low byte must be read before the high byte.
- */
-static inline int adt7473_read_word_data(struct i2c_client *client, u8 reg)
-{
- u16 foo;
- foo = i2c_smbus_read_byte_data(client, reg);
- foo |= ((u16)i2c_smbus_read_byte_data(client, reg + 1) << 8);
- return foo;
-}
-
-static inline int adt7473_write_word_data(struct i2c_client *client, u8 reg,
- u16 value)
-{
- return i2c_smbus_write_byte_data(client, reg, value & 0xFF)
- && i2c_smbus_write_byte_data(client, reg + 1, value >> 8);
-}
-
-static void adt7473_init_client(struct i2c_client *client)
-{
- int reg = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG1);
-
- if (!(reg & ADT7473_CFG1_READY)) {
- dev_err(&client->dev, "Chip not ready.\n");
- } else {
- /* start monitoring */
- i2c_smbus_write_byte_data(client, ADT7473_REG_CFG1,
- reg | ADT7473_CFG1_START);
- }
-}
-
-static struct adt7473_data *adt7473_update_device(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7473_data *data = i2c_get_clientdata(client);
- unsigned long local_jiffies = jiffies;
- u8 cfg;
- int i;
-
- mutex_lock(&data->lock);
- if (time_before(local_jiffies, data->sensors_last_updated +
- SENSOR_REFRESH_INTERVAL)
- && data->sensors_valid)
- goto no_sensor_update;
-
- for (i = 0; i < ADT7473_VOLT_COUNT; i++)
- data->volt[i] = i2c_smbus_read_byte_data(client,
- ADT7473_REG_VOLT(i));
-
- /* Determine temperature encoding */
- cfg = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG5);
- data->temp_twos_complement = (cfg & ADT7473_CFG5_TEMP_TWOS);
-
- /*
- * What does this do? it implies a variable temperature sensor
- * offset, but the datasheet doesn't say anything about this bit
- * and other parts of the datasheet imply that "offset64" mode
- * means that you shift temp values by -64 if the above bit was set.
- */
- data->temp_offset = (cfg & ADT7473_CFG5_TEMP_OFFSET);
-
- for (i = 0; i < ADT7473_TEMP_COUNT; i++)
- data->temp[i] = i2c_smbus_read_byte_data(client,
- ADT7473_REG_TEMP(i));
-
- for (i = 0; i < ADT7473_FAN_COUNT; i++)
- data->fan[i] = adt7473_read_word_data(client,
- ADT7473_REG_FAN(i));
-
- for (i = 0; i < ADT7473_PWM_COUNT; i++)
- data->pwm[i] = i2c_smbus_read_byte_data(client,
- ADT7473_REG_PWM(i));
-
- data->alarm = i2c_smbus_read_byte_data(client, ADT7473_REG_ALARM1);
- if (data->alarm & ADT7473_OOL)
- data->alarm |= ALARM2(i2c_smbus_read_byte_data(client,
- ADT7473_REG_ALARM2));
-
- data->sensors_last_updated = local_jiffies;
- data->sensors_valid = 1;
-
-no_sensor_update:
- if (time_before(local_jiffies, data->limits_last_updated +
- LIMIT_REFRESH_INTERVAL)
- && data->limits_valid)
- goto out;
-
- for (i = 0; i < ADT7473_VOLT_COUNT; i++) {
- data->volt_min[i] = i2c_smbus_read_byte_data(client,
- ADT7473_REG_VOLT_MIN(i));
- data->volt_max[i] = i2c_smbus_read_byte_data(client,
- ADT7473_REG_VOLT_MAX(i));
- }
-
- for (i = 0; i < ADT7473_TEMP_COUNT; i++) {
- data->temp_min[i] = i2c_smbus_read_byte_data(client,
- ADT7473_REG_TEMP_MIN(i));
- data->temp_max[i] = i2c_smbus_read_byte_data(client,
- ADT7473_REG_TEMP_MAX(i));
- data->temp_tmin[i] = i2c_smbus_read_byte_data(client,
- ADT7473_REG_TEMP_TMIN(i));
- data->temp_tmax[i] = i2c_smbus_read_byte_data(client,
- ADT7473_REG_TEMP_TMAX(i));
- }
-
- for (i = 0; i < ADT7473_FAN_COUNT; i++)
- data->fan_min[i] = adt7473_read_word_data(client,
- ADT7473_REG_FAN_MIN(i));
-
- for (i = 0; i < ADT7473_PWM_COUNT; i++) {
- data->pwm_max[i] = i2c_smbus_read_byte_data(client,
- ADT7473_REG_PWM_MAX(i));
- data->pwm_min[i] = i2c_smbus_read_byte_data(client,
- ADT7473_REG_PWM_MIN(i));
- data->pwm_behavior[i] = i2c_smbus_read_byte_data(client,
- ADT7473_REG_PWM_BHVR(i));
- }
-
- i = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG4);
- data->max_duty_at_overheat = !!(i & ADT7473_CFG4_MAX_DUTY_AT_OVT);
-
- data->limits_last_updated = local_jiffies;
- data->limits_valid = 1;
-
-out:
- mutex_unlock(&data->lock);
- return data;
-}
-
-/*
- * Conversions
- */
-
-/* IN are scaled acording to built-in resistors */
-static const int adt7473_scaling[] = { /* .001 Volts */
- 2250, 3300
-};
-#define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from))
-
-static int decode_volt(int volt_index, u8 raw)
-{
- return SCALE(raw, 192, adt7473_scaling[volt_index]);
-}
-
-static u8 encode_volt(int volt_index, int cooked)
-{
- int raw = SCALE(cooked, adt7473_scaling[volt_index], 192);
- return SENSORS_LIMIT(raw, 0, 255);
-}
-
-static ssize_t show_volt_min(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7473_data *data = adt7473_update_device(dev);
- return sprintf(buf, "%d\n",
- decode_volt(attr->index, data->volt_min[attr->index]));
-}
-
-static ssize_t set_volt_min(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7473_data *data = i2c_get_clientdata(client);
- long volt;
-
- if (strict_strtol(buf, 10, &volt))
- return -EINVAL;
-
- volt = encode_volt(attr->index, volt);
-
- mutex_lock(&data->lock);
- data->volt_min[attr->index] = volt;
- i2c_smbus_write_byte_data(client, ADT7473_REG_VOLT_MIN(attr->index),
- volt);
- mutex_unlock(&data->lock);
-
- return count;
-}
-
-static ssize_t show_volt_max(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7473_data *data = adt7473_update_device(dev);
- return sprintf(buf, "%d\n",
- decode_volt(attr->index, data->volt_max[attr->index]));
-}
-
-static ssize_t set_volt_max(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7473_data *data = i2c_get_clientdata(client);
- long volt;
-
- if (strict_strtol(buf, 10, &volt))
- return -EINVAL;
-
- volt = encode_volt(attr->index, volt);
-
- mutex_lock(&data->lock);
- data->volt_max[attr->index] = volt;
- i2c_smbus_write_byte_data(client, ADT7473_REG_VOLT_MAX(attr->index),
- volt);
- mutex_unlock(&data->lock);
-
- return count;
-}
-
-static ssize_t show_volt(struct device *dev, struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7473_data *data = adt7473_update_device(dev);
-
- return sprintf(buf, "%d\n",
- decode_volt(attr->index, data->volt[attr->index]));
-}
-
-/*
- * This chip can report temperature data either as a two's complement
- * number in the range -128 to 127, or as an unsigned number that must
- * be offset by 64.
- */
-static int decode_temp(u8 twos_complement, u8 raw)
-{
- return twos_complement ? (s8)raw : raw - 64;
-}
-
-static u8 encode_temp(u8 twos_complement, int cooked)
-{
- u8 ret = twos_complement ? cooked & 0xFF : cooked + 64;
- return SENSORS_LIMIT(ret, 0, 255);
-}
-
-static ssize_t show_temp_min(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7473_data *data = adt7473_update_device(dev);
- return sprintf(buf, "%d\n", 1000 * decode_temp(
- data->temp_twos_complement,
- data->temp_min[attr->index]));
-}
-
-static ssize_t set_temp_min(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7473_data *data = i2c_get_clientdata(client);
- long temp;
-
- if (strict_strtol(buf, 10, &temp))
- return -EINVAL;
-
- temp = DIV_ROUND_CLOSEST(temp, 1000);
- temp = encode_temp(data->temp_twos_complement, temp);
-
- mutex_lock(&data->lock);
- data->temp_min[attr->index] = temp;
- i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_MIN(attr->index),
- temp);
- mutex_unlock(&data->lock);
-
- return count;
-}
-
-static ssize_t show_temp_max(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7473_data *data = adt7473_update_device(dev);
- return sprintf(buf, "%d\n", 1000 * decode_temp(
- data->temp_twos_complement,
- data->temp_max[attr->index]));
-}
-
-static ssize_t set_temp_max(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7473_data *data = i2c_get_clientdata(client);
- long temp;
-
- if (strict_strtol(buf, 10, &temp))
- return -EINVAL;
-
- temp = DIV_ROUND_CLOSEST(temp, 1000);
- temp = encode_temp(data->temp_twos_complement, temp);
-
- mutex_lock(&data->lock);
- data->temp_max[attr->index] = temp;
- i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_MAX(attr->index),
- temp);
- mutex_unlock(&data->lock);
-
- return count;
-}
-
-static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7473_data *data = adt7473_update_device(dev);
- return sprintf(buf, "%d\n", 1000 * decode_temp(
- data->temp_twos_complement,
- data->temp[attr->index]));
-}
-
-static ssize_t show_fan_min(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7473_data *data = adt7473_update_device(dev);
-
- if (FAN_DATA_VALID(data->fan_min[attr->index]))
- return sprintf(buf, "%d\n",
- FAN_PERIOD_TO_RPM(data->fan_min[attr->index]));
- else
- return sprintf(buf, "0\n");
-}
-
-static ssize_t set_fan_min(struct device *dev,
- struct device_attribute *devattr,
- const char *buf, size_t count)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7473_data *data = i2c_get_clientdata(client);
- long temp;
-
- if (strict_strtol(buf, 10, &temp) || !temp)
- return -EINVAL;
-
- temp = FAN_RPM_TO_PERIOD(temp);
- temp = SENSORS_LIMIT(temp, 1, 65534);
-
- mutex_lock(&data->lock);
- data->fan_min[attr->index] = temp;
- adt7473_write_word_data(client, ADT7473_REG_FAN_MIN(attr->index), temp);
- mutex_unlock(&data->lock);
-
- return count;
-}
-
-static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7473_data *data = adt7473_update_device(dev);
-
- if (FAN_DATA_VALID(data->fan[attr->index]))
- return sprintf(buf, "%d\n",
- FAN_PERIOD_TO_RPM(data->fan[attr->index]));
- else
- return sprintf(buf, "0\n");
-}
-
-static ssize_t show_max_duty_at_crit(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- struct adt7473_data *data = adt7473_update_device(dev);
- return sprintf(buf, "%d\n", data->max_duty_at_overheat);
-}
-
-static ssize_t set_max_duty_at_crit(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
-{
- u8 reg;
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7473_data *data = i2c_get_clientdata(client);
- long temp;
-
- if (strict_strtol(buf, 10, &temp))
- return -EINVAL;
-
- mutex_lock(&data->lock);
- data->max_duty_at_overheat = !!temp;
- reg = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG4);
- if (temp)
- reg |= ADT7473_CFG4_MAX_DUTY_AT_OVT;
- else
- reg &= ~ADT7473_CFG4_MAX_DUTY_AT_OVT;
- i2c_smbus_write_byte_data(client, ADT7473_REG_CFG4, reg);
- mutex_unlock(&data->lock);
-
- return count;
-}
-
-static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7473_data *data = adt7473_update_device(dev);
- return sprintf(buf, "%d\n", data->pwm[attr->index]);
-}
-
-static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
- const char *buf, size_t count)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7473_data *data = i2c_get_clientdata(client);
- long temp;
-
- if (strict_strtol(buf, 10, &temp))
- return -EINVAL;
-
- temp = SENSORS_LIMIT(temp, 0, 255);
-
- mutex_lock(&data->lock);
- data->pwm[attr->index] = temp;
- i2c_smbus_write_byte_data(client, ADT7473_REG_PWM(attr->index), temp);
- mutex_unlock(&data->lock);
-
- return count;
-}
-
-static ssize_t show_pwm_max(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7473_data *data = adt7473_update_device(dev);
- return sprintf(buf, "%d\n", data->pwm_max[attr->index]);
-}
-
-static ssize_t set_pwm_max(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7473_data *data = i2c_get_clientdata(client);
- long temp;
-
- if (strict_strtol(buf, 10, &temp))
- return -EINVAL;
-
- temp = SENSORS_LIMIT(temp, 0, 255);
-
- mutex_lock(&data->lock);
- data->pwm_max[attr->index] = temp;
- i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_MAX(attr->index),
- temp);
- mutex_unlock(&data->lock);
-
- return count;
-}
-
-static ssize_t show_pwm_min(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7473_data *data = adt7473_update_device(dev);
- return sprintf(buf, "%d\n", data->pwm_min[attr->index]);
-}
-
-static ssize_t set_pwm_min(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7473_data *data = i2c_get_clientdata(client);
- long temp;
-
- if (strict_strtol(buf, 10, &temp))
- return -EINVAL;
-
- temp = SENSORS_LIMIT(temp, 0, 255);
-
- mutex_lock(&data->lock);
- data->pwm_min[attr->index] = temp;
- i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_MIN(attr->index),
- temp);
- mutex_unlock(&data->lock);
-
- return count;
-}
-
-static ssize_t show_temp_tmax(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7473_data *data = adt7473_update_device(dev);
- return sprintf(buf, "%d\n", 1000 * decode_temp(
- data->temp_twos_complement,
- data->temp_tmax[attr->index]));
-}
-
-static ssize_t set_temp_tmax(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7473_data *data = i2c_get_clientdata(client);
- long temp;
-
- if (strict_strtol(buf, 10, &temp))
- return -EINVAL;
-
- temp = DIV_ROUND_CLOSEST(temp, 1000);
- temp = encode_temp(data->temp_twos_complement, temp);
-
- mutex_lock(&data->lock);
- data->temp_tmax[attr->index] = temp;
- i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_TMAX(attr->index),
- temp);
- mutex_unlock(&data->lock);
-
- return count;
-}
-
-static ssize_t show_temp_tmin(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7473_data *data = adt7473_update_device(dev);
- return sprintf(buf, "%d\n", 1000 * decode_temp(
- data->temp_twos_complement,
- data->temp_tmin[attr->index]));
-}
-
-static ssize_t set_temp_tmin(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7473_data *data = i2c_get_clientdata(client);
- long temp;
-
- if (strict_strtol(buf, 10, &temp))
- return -EINVAL;
-
- temp = DIV_ROUND_CLOSEST(temp, 1000);
- temp = encode_temp(data->temp_twos_complement, temp);
-
- mutex_lock(&data->lock);
- data->temp_tmin[attr->index] = temp;
- i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_TMIN(attr->index),
- temp);
- mutex_unlock(&data->lock);
-
- return count;
-}
-
-static ssize_t show_pwm_enable(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7473_data *data = adt7473_update_device(dev);
-
- switch (data->pwm_behavior[attr->index] >> ADT7473_PWM_BHVR_SHIFT) {
- case 3:
- return sprintf(buf, "0\n");
- case 7:
- return sprintf(buf, "1\n");
- default:
- return sprintf(buf, "2\n");
- }
-}
-
-static ssize_t set_pwm_enable(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
-{
- u8 reg;
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7473_data *data = i2c_get_clientdata(client);
- long temp;
-
- if (strict_strtol(buf, 10, &temp))
- return -EINVAL;
-
- switch (temp) {
- case 0:
- temp = 3;
- break;
- case 1:
- temp = 7;
- break;
- case 2:
- /* Enter automatic mode with fans off */
- temp = 4;
- break;
- default:
- return -EINVAL;
- }
-
- mutex_lock(&data->lock);
- reg = i2c_smbus_read_byte_data(client,
- ADT7473_REG_PWM_BHVR(attr->index));
- reg = (temp << ADT7473_PWM_BHVR_SHIFT) |
- (reg & ~ADT7473_PWM_BHVR_MASK);
- i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_BHVR(attr->index),
- reg);
- data->pwm_behavior[attr->index] = reg;
- mutex_unlock(&data->lock);
-
- return count;
-}
-
-static ssize_t show_pwm_auto_temp(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7473_data *data = adt7473_update_device(dev);
- int bhvr = data->pwm_behavior[attr->index] >> ADT7473_PWM_BHVR_SHIFT;
-
- switch (bhvr) {
- case 3:
- case 4:
- case 7:
- return sprintf(buf, "0\n");
- case 0:
- case 1:
- case 5:
- case 6:
- return sprintf(buf, "%d\n", bhvr + 1);
- case 2:
- return sprintf(buf, "4\n");
- }
- /* shouldn't ever get here */
- BUG();
-}
-
-static ssize_t set_pwm_auto_temp(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
-{
- u8 reg;
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7473_data *data = i2c_get_clientdata(client);
- long temp;
-
- if (strict_strtol(buf, 10, &temp))
- return -EINVAL;
-
- switch (temp) {
- case 1:
- case 2:
- case 6:
- case 7:
- temp--;
- break;
- case 0:
- temp = 4;
- break;
- default:
- return -EINVAL;
- }
-
- mutex_lock(&data->lock);
- reg = i2c_smbus_read_byte_data(client,
- ADT7473_REG_PWM_BHVR(attr->index));
- reg = (temp << ADT7473_PWM_BHVR_SHIFT) |
- (reg & ~ADT7473_PWM_BHVR_MASK);
- i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_BHVR(attr->index),
- reg);
- data->pwm_behavior[attr->index] = reg;
- mutex_unlock(&data->lock);
-
- return count;
-}
-
-static ssize_t show_alarm(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7473_data *data = adt7473_update_device(dev);
-
- if (data->alarm & attr->index)
- return sprintf(buf, "1\n");
- else
- return sprintf(buf, "0\n");
-}
-
-
-static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, show_volt_max,
- set_volt_max, 0);
-static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, show_volt_max,
- set_volt_max, 1);
-
-static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, show_volt_min,
- set_volt_min, 0);
-static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, show_volt_min,
- set_volt_min, 1);
-
-static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_volt, NULL, 0);
-static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_volt, NULL, 1);
-
-static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL,
- ADT7473_VCCP_ALARM);
-static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL,
- ADT7473_VCC_ALARM);
-
-static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max,
- set_temp_max, 0);
-static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max,
- set_temp_max, 1);
-static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp_max,
- set_temp_max, 2);
-
-static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min,
- set_temp_min, 0);
-static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min,
- set_temp_min, 1);
-static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, show_temp_min,
- set_temp_min, 2);
-
-static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
-static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
-static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
-
-static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL,
- ADT7473_R1T_ALARM | ALARM2(ADT7473_R1T_SHORT));
-static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL,
- ADT7473_LT_ALARM);
-static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL,
- ADT7473_R2T_ALARM | ALARM2(ADT7473_R2T_SHORT));
-
-static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
- set_fan_min, 0);
-static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
- set_fan_min, 1);
-static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min,
- set_fan_min, 2);
-static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min,
- set_fan_min, 3);
-
-static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
-static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
-static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2);
-static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3);
-
-static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL,
- ALARM2(ADT7473_FAN1_ALARM));
-static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL,
- ALARM2(ADT7473_FAN2_ALARM));
-static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL,
- ALARM2(ADT7473_FAN3_ALARM));
-static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL,
- ALARM2(ADT7473_FAN4_ALARM));
-
-static SENSOR_DEVICE_ATTR(pwm_use_point2_pwm_at_crit, S_IWUSR | S_IRUGO,
- show_max_duty_at_crit, set_max_duty_at_crit, 0);
-
-static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0);
-static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1);
-static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2);
-
-static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO,
- show_pwm_min, set_pwm_min, 0);
-static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO,
- show_pwm_min, set_pwm_min, 1);
-static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO,
- show_pwm_min, set_pwm_min, 2);
-
-static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO,
- show_pwm_max, set_pwm_max, 0);
-static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO,
- show_pwm_max, set_pwm_max, 1);
-static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO,
- show_pwm_max, set_pwm_max, 2);
-
-static SENSOR_DEVICE_ATTR(temp1_auto_point1_temp, S_IWUSR | S_IRUGO,
- show_temp_tmin, set_temp_tmin, 0);
-static SENSOR_DEVICE_ATTR(temp2_auto_point1_temp, S_IWUSR | S_IRUGO,
- show_temp_tmin, set_temp_tmin, 1);
-static SENSOR_DEVICE_ATTR(temp3_auto_point1_temp, S_IWUSR | S_IRUGO,
- show_temp_tmin, set_temp_tmin, 2);
-
-static SENSOR_DEVICE_ATTR(temp1_auto_point2_temp, S_IWUSR | S_IRUGO,
- show_temp_tmax, set_temp_tmax, 0);
-static SENSOR_DEVICE_ATTR(temp2_auto_point2_temp, S_IWUSR | S_IRUGO,
- show_temp_tmax, set_temp_tmax, 1);
-static SENSOR_DEVICE_ATTR(temp3_auto_point2_temp, S_IWUSR | S_IRUGO,
- show_temp_tmax, set_temp_tmax, 2);
-
-static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
- set_pwm_enable, 0);
-static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
- set_pwm_enable, 1);
-static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
- set_pwm_enable, 2);
-
-static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IWUSR | S_IRUGO,
- show_pwm_auto_temp, set_pwm_auto_temp, 0);
-static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IWUSR | S_IRUGO,
- show_pwm_auto_temp, set_pwm_auto_temp, 1);
-static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO,
- show_pwm_auto_temp, set_pwm_auto_temp, 2);
-
-static struct attribute *adt7473_attr[] =
-{
- &sensor_dev_attr_in1_max.dev_attr.attr,
- &sensor_dev_attr_in2_max.dev_attr.attr,
- &sensor_dev_attr_in1_min.dev_attr.attr,
- &sensor_dev_attr_in2_min.dev_attr.attr,
- &sensor_dev_attr_in1_input.dev_attr.attr,
- &sensor_dev_attr_in2_input.dev_attr.attr,
- &sensor_dev_attr_in1_alarm.dev_attr.attr,
- &sensor_dev_attr_in2_alarm.dev_attr.attr,
-
- &sensor_dev_attr_temp1_max.dev_attr.attr,
- &sensor_dev_attr_temp2_max.dev_attr.attr,
- &sensor_dev_attr_temp3_max.dev_attr.attr,
- &sensor_dev_attr_temp1_min.dev_attr.attr,
- &sensor_dev_attr_temp2_min.dev_attr.attr,
- &sensor_dev_attr_temp3_min.dev_attr.attr,
- &sensor_dev_attr_temp1_input.dev_attr.attr,
- &sensor_dev_attr_temp2_input.dev_attr.attr,
- &sensor_dev_attr_temp3_input.dev_attr.attr,
- &sensor_dev_attr_temp1_alarm.dev_attr.attr,
- &sensor_dev_attr_temp2_alarm.dev_attr.attr,
- &sensor_dev_attr_temp3_alarm.dev_attr.attr,
- &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr,
- &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr,
- &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr,
- &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr,
- &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr,
- &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr,
-
- &sensor_dev_attr_fan1_min.dev_attr.attr,
- &sensor_dev_attr_fan2_min.dev_attr.attr,
- &sensor_dev_attr_fan3_min.dev_attr.attr,
- &sensor_dev_attr_fan4_min.dev_attr.attr,
- &sensor_dev_attr_fan1_input.dev_attr.attr,
- &sensor_dev_attr_fan2_input.dev_attr.attr,
- &sensor_dev_attr_fan3_input.dev_attr.attr,
- &sensor_dev_attr_fan4_input.dev_attr.attr,
- &sensor_dev_attr_fan1_alarm.dev_attr.attr,
- &sensor_dev_attr_fan2_alarm.dev_attr.attr,
- &sensor_dev_attr_fan3_alarm.dev_attr.attr,
- &sensor_dev_attr_fan4_alarm.dev_attr.attr,
-
- &sensor_dev_attr_pwm_use_point2_pwm_at_crit.dev_attr.attr,
-
- &sensor_dev_attr_pwm1.dev_attr.attr,
- &sensor_dev_attr_pwm2.dev_attr.attr,
- &sensor_dev_attr_pwm3.dev_attr.attr,
- &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
- &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
- &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
- &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
- &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
- &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
-
- &sensor_dev_attr_pwm1_enable.dev_attr.attr,
- &sensor_dev_attr_pwm2_enable.dev_attr.attr,
- &sensor_dev_attr_pwm3_enable.dev_attr.attr,
- &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
- &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
- &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
-
- NULL
-};
-
-/* Return 0 if detection is successful, -ENODEV otherwise */
-static int adt7473_detect(struct i2c_client *client,
- struct i2c_board_info *info)
-{
- struct i2c_adapter *adapter = client->adapter;
- int vendor, device, revision;
-
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- return -ENODEV;
-
- vendor = i2c_smbus_read_byte_data(client, ADT7473_REG_VENDOR);
- if (vendor != ADT7473_VENDOR)
- return -ENODEV;
-
- device = i2c_smbus_read_byte_data(client, ADT7473_REG_DEVICE);
- if (device != ADT7473_DEVICE)
- return -ENODEV;
-
- revision = i2c_smbus_read_byte_data(client, ADT7473_REG_REVISION);
- if (revision != ADT7473_REV_68 && revision != ADT7473_REV_69)
- return -ENODEV;
-
- strlcpy(info->type, "adt7473", I2C_NAME_SIZE);
-
- return 0;
-}
-
-static int adt7473_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct adt7473_data *data;
- int err;
-
- data = kzalloc(sizeof(struct adt7473_data), GFP_KERNEL);
- if (!data) {
- err = -ENOMEM;
- goto exit;
- }
-
- i2c_set_clientdata(client, data);
- mutex_init(&data->lock);
-
- dev_info(&client->dev, "%s chip found\n", client->name);
-
- /* Initialize the ADT7473 chip */
- adt7473_init_client(client);
-
- /* Register sysfs hooks */
- data->attrs.attrs = adt7473_attr;
- err = sysfs_create_group(&client->dev.kobj, &data->attrs);
- if (err)
- goto exit_free;
-
- data->hwmon_dev = hwmon_device_register(&client->dev);
- if (IS_ERR(data->hwmon_dev)) {
- err = PTR_ERR(data->hwmon_dev);
- goto exit_remove;
- }
-
- return 0;
-
-exit_remove:
- sysfs_remove_group(&client->dev.kobj, &data->attrs);
-exit_free:
- kfree(data);
-exit:
- return err;
-}
-
-static int adt7473_remove(struct i2c_client *client)
-{
- struct adt7473_data *data = i2c_get_clientdata(client);
-
- hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&client->dev.kobj, &data->attrs);
- kfree(data);
- return 0;
-}
-
-static int __init adt7473_init(void)
-{
- pr_notice("The adt7473 driver is deprecated, please use the adt7475 "
- "driver instead\n");
- return i2c_add_driver(&adt7473_driver);
-}
-
-static void __exit adt7473_exit(void)
-{
- i2c_del_driver(&adt7473_driver);
-}
-
-MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>");
-MODULE_DESCRIPTION("ADT7473 driver");
-MODULE_LICENSE("GPL");
-
-module_init(adt7473_init);
-module_exit(adt7473_exit);
diff --git a/drivers/hwmon/asc7621.c b/drivers/hwmon/asc7621.c
new file mode 100644
index 0000000..7f94810
--- /dev/null
+++ b/drivers/hwmon/asc7621.c
@@ -0,0 +1,1255 @@
+/*
+ * asc7621.c - Part of lm_sensors, Linux kernel modules for hardware monitoring
+ * Copyright (c) 2007, 2010 George Joseph <george.joseph@fairview5.com>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = {
+ 0x2c, 0x2d, 0x2e, I2C_CLIENT_END
+};
+
+enum asc7621_type {
+ asc7621,
+ asc7621a
+};
+
+#define INTERVAL_HIGH (HZ + HZ / 2)
+#define INTERVAL_LOW (1 * 60 * HZ)
+#define PRI_NONE 0
+#define PRI_LOW 1
+#define PRI_HIGH 2
+#define FIRST_CHIP asc7621
+#define LAST_CHIP asc7621a
+
+struct asc7621_chip {
+ char *name;
+ enum asc7621_type chip_type;
+ u8 company_reg;
+ u8 company_id;
+ u8 verstep_reg;
+ u8 verstep_id;
+ unsigned short *addresses;
+};
+
+static struct asc7621_chip asc7621_chips[] = {
+ {
+ .name = "asc7621",
+ .chip_type = asc7621,
+ .company_reg = 0x3e,
+ .company_id = 0x61,
+ .verstep_reg = 0x3f,
+ .verstep_id = 0x6c,
+ .addresses = normal_i2c,
+ },
+ {
+ .name = "asc7621a",
+ .chip_type = asc7621a,
+ .company_reg = 0x3e,
+ .company_id = 0x61,
+ .verstep_reg = 0x3f,
+ .verstep_id = 0x6d,
+ .addresses = normal_i2c,
+ },
+};
+
+/*
+ * Defines the highest register to be used, not the count.
+ * The actual count will probably be smaller because of gaps
+ * in the implementation (unused register locations).
+ * This define will safely set the array size of both the parameter
+ * and data arrays.
+ * This comes from the data sheet register description table.
+ */
+#define LAST_REGISTER 0xff
+
+struct asc7621_data {
+ struct i2c_client client;
+ struct device *class_dev;
+ struct mutex update_lock;
+ int valid; /* !=0 if following fields are valid */
+ unsigned long last_high_reading; /* In jiffies */
+ unsigned long last_low_reading; /* In jiffies */
+ /*
+ * Registers we care about occupy the corresponding index
+ * in the array. Registers we don't care about are left
+ * at 0.
+ */
+ u8 reg[LAST_REGISTER + 1];
+};
+
+/*
+ * Macro to get the parent asc7621_param structure
+ * from a sensor_device_attribute passed into the
+ * show/store functions.
+ */
+#define to_asc7621_param(_sda) \
+ container_of(_sda, struct asc7621_param, sda)
+
+/*
+ * Each parameter to be retrieved needs an asc7621_param structure
+ * allocated. It contains the sensor_device_attribute structure
+ * and the control info needed to retrieve the value from the register map.
+ */
+struct asc7621_param {
+ struct sensor_device_attribute sda;
+ u8 priority;
+ u8 msb[3];
+ u8 lsb[3];
+ u8 mask[3];
+ u8 shift[3];
+};
+
+/*
+ * This is the map that ultimately indicates whether we'll be
+ * retrieving a register value or not, and at what frequency.
+ */
+static u8 asc7621_register_priorities[255];
+
+static struct asc7621_data *asc7621_update_device(struct device *dev);
+
+static inline u8 read_byte(struct i2c_client *client, u8 reg)
+{
+ int res = i2c_smbus_read_byte_data(client, reg);
+ if (res < 0) {
+ dev_err(&client->dev,
+ "Unable to read from register 0x%02x.\n", reg);
+ return 0;
+ };
+ return res & 0xff;
+}
+
+static inline int write_byte(struct i2c_client *client, u8 reg, u8 data)
+{
+ int res = i2c_smbus_write_byte_data(client, reg, data);
+ if (res < 0) {
+ dev_err(&client->dev,
+ "Unable to write value 0x%02x to register 0x%02x.\n",
+ data, reg);
+ };
+ return res;
+}
+
+/*
+ * Data Handlers
+ * Each function handles the formatting, storage
+ * and retrieval of like parameters.
+ */
+
+#define SETUP_SHOW_data_param(d, a) \
+ struct sensor_device_attribute *sda = to_sensor_dev_attr(a); \
+ struct asc7621_data *data = asc7621_update_device(d); \
+ struct asc7621_param *param = to_asc7621_param(sda)
+
+#define SETUP_STORE_data_param(d, a) \
+ struct sensor_device_attribute *sda = to_sensor_dev_attr(a); \
+ struct i2c_client *client = to_i2c_client(d); \
+ struct asc7621_data *data = i2c_get_clientdata(client); \
+ struct asc7621_param *param = to_asc7621_param(sda)
+
+/*
+ * u8 is just what it sounds like...an unsigned byte with no
+ * special formatting.
+ */
+static ssize_t show_u8(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ SETUP_SHOW_data_param(dev, attr);
+
+ return sprintf(buf, "%u\n", data->reg[param->msb[0]]);
+}
+
+static ssize_t store_u8(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ SETUP_STORE_data_param(dev, attr);
+ long reqval;
+
+ if (strict_strtol(buf, 10, &reqval))
+ return -EINVAL;
+
+ reqval = SENSORS_LIMIT(reqval, 0, 255);
+
+ mutex_lock(&data->update_lock);
+ data->reg[param->msb[0]] = reqval;
+ write_byte(client, param->msb[0], reqval);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+/*
+ * Many of the config values occupy only a few bits of a register.
+ */
+static ssize_t show_bitmask(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ SETUP_SHOW_data_param(dev, attr);
+
+ return sprintf(buf, "%u\n",
+ (data->reg[param->msb[0]] >> param->
+ shift[0]) & param->mask[0]);
+}
+
+static ssize_t store_bitmask(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ SETUP_STORE_data_param(dev, attr);
+ long reqval;
+ u8 currval;
+
+ if (strict_strtol(buf, 10, &reqval))
+ return -EINVAL;
+
+ reqval = SENSORS_LIMIT(reqval, 0, param->mask[0]);
+
+ reqval = (reqval & param->mask[0]) << param->shift[0];
+
+ mutex_lock(&data->update_lock);
+ currval = read_byte(client, param->msb[0]);
+ reqval |= (currval & ~(param->mask[0] << param->shift[0]));
+ data->reg[param->msb[0]] = reqval;
+ write_byte(client, param->msb[0], reqval);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+/*
+ * 16 bit fan rpm values
+ * reported by the device as the number of 11.111us periods (90khz)
+ * between full fan rotations. Therefore...
+ * RPM = (90000 * 60) / register value
+ */
+static ssize_t show_fan16(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ SETUP_SHOW_data_param(dev, attr);
+ u16 regval;
+
+ mutex_lock(&data->update_lock);
+ regval = (data->reg[param->msb[0]] << 8) | data->reg[param->lsb[0]];
+ mutex_unlock(&data->update_lock);
+
+ return sprintf(buf, "%u\n",
+ (regval == 0 ? -1 : (regval) ==
+ 0xffff ? 0 : 5400000 / regval));
+}
+
+static ssize_t store_fan16(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
+{
+ SETUP_STORE_data_param(dev, attr);
+ long reqval;
+
+ if (strict_strtol(buf, 10, &reqval))
+ return -EINVAL;
+
+ reqval =
+ (SENSORS_LIMIT((reqval) <= 0 ? 0 : 5400000 / (reqval), 0, 65534));
+
+ mutex_lock(&data->update_lock);
+ data->reg[param->msb[0]] = (reqval >> 8) & 0xff;
+ data->reg[param->lsb[0]] = reqval & 0xff;
+ write_byte(client, param->msb[0], data->reg[param->msb[0]]);
+ write_byte(client, param->lsb[0], data->reg[param->lsb[0]]);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+/*
+ * Voltages are scaled in the device so that the nominal voltage
+ * is 3/4ths of the 0-255 range (i.e. 192).
+ * If all voltages are 'normal' then all voltage registers will
+ * read 0xC0. This doesn't help us if we don't have a point of refernce.
+ * The data sheet however provides us with the full scale value for each
+ * which is stored in in_scaling. The sda->index parameter value provides
+ * the index into in_scaling.
+ *
+ * NOTE: The chip expects the first 2 inputs be 2.5 and 2.25 volts
+ * respectively. That doesn't mean that's what the motherboard provides. :)
+ */
+
+static int asc7621_in_scaling[] = {
+ 3320, 3000, 4380, 6640, 16000
+};
+
+static ssize_t show_in10(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ SETUP_SHOW_data_param(dev, attr);
+ u16 regval;
+ u8 nr = sda->index;
+
+ mutex_lock(&data->update_lock);
+ regval = (data->reg[param->msb[0]] * asc7621_in_scaling[nr]) / 256;
+
+ /* The LSB value is a 2-bit scaling of the MSB's LSbit value.
+ * I.E. If the maximim voltage for this input is 6640 millivolts then
+ * a MSB register value of 0 = 0mv and 255 = 6640mv.
+ * A 1 step change therefore represents 25.9mv (6640 / 256).
+ * The extra 2-bits therefore represent increments of 6.48mv.
+ */
+ regval += ((asc7621_in_scaling[nr] / 256) / 4) *
+ (data->reg[param->lsb[0]] >> 6);
+
+ mutex_unlock(&data->update_lock);
+
+ return sprintf(buf, "%u\n", regval);
+}
+
+/* 8 bit voltage values (the mins and maxs) */
+static ssize_t show_in8(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ SETUP_SHOW_data_param(dev, attr);
+ u8 nr = sda->index;
+
+ return sprintf(buf, "%u\n",
+ ((data->reg[param->msb[0]] *
+ asc7621_in_scaling[nr]) / 256));
+}
+
+static ssize_t store_in8(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ SETUP_STORE_data_param(dev, attr);
+ long reqval;
+ u8 nr = sda->index;
+
+ if (strict_strtol(buf, 10, &reqval))
+ return -EINVAL;
+
+ reqval = SENSORS_LIMIT(reqval, 0, asc7621_in_scaling[nr]);
+
+ reqval = (reqval * 255 + 128) / asc7621_in_scaling[nr];
+
+ mutex_lock(&data->update_lock);
+ data->reg[param->msb[0]] = reqval;
+ write_byte(client, param->msb[0], reqval);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static ssize_t show_temp8(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ SETUP_SHOW_data_param(dev, attr);
+
+ return sprintf(buf, "%d\n", ((s8) data->reg[param->msb[0]]) * 1000);
+}
+
+static ssize_t store_temp8(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
+{
+ SETUP_STORE_data_param(dev, attr);
+ long reqval;
+ s8 temp;
+
+ if (strict_strtol(buf, 10, &reqval))
+ return -EINVAL;
+
+ reqval = SENSORS_LIMIT(reqval, -127000, 127000);
+
+ temp = reqval / 1000;
+
+ mutex_lock(&data->update_lock);
+ data->reg[param->msb[0]] = temp;
+ write_byte(client, param->msb[0], temp);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+/*
+ * Temperatures that occupy 2 bytes always have the whole
+ * number of degrees in the MSB with some part of the LSB
+ * indicating fractional degrees.
+ */
+
+/* mmmmmmmm.llxxxxxx */
+static ssize_t show_temp10(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ SETUP_SHOW_data_param(dev, attr);
+ u8 msb, lsb;
+ int temp;
+
+ mutex_lock(&data->update_lock);
+ msb = data->reg[param->msb[0]];
+ lsb = (data->reg[param->lsb[0]] >> 6) & 0x03;
+ temp = (((s8) msb) * 1000) + (lsb * 250);
+ mutex_unlock(&data->update_lock);
+
+ return sprintf(buf, "%d\n", temp);
+}
+
+/* mmmmmm.ll */
+static ssize_t show_temp62(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ SETUP_SHOW_data_param(dev, attr);
+ u8 regval = data->reg[param->msb[0]];
+ int temp = ((s8) (regval & 0xfc) * 1000) + ((regval & 0x03) * 250);
+
+ return sprintf(buf, "%d\n", temp);
+}
+
+static ssize_t store_temp62(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
+{
+ SETUP_STORE_data_param(dev, attr);
+ long reqval, i, f;
+ s8 temp;
+
+ if (strict_strtol(buf, 10, &reqval))
+ return -EINVAL;
+
+ reqval = SENSORS_LIMIT(reqval, -32000, 31750);
+ i = reqval / 1000;
+ f = reqval - (i * 1000);
+ temp = i << 2;
+ temp |= f / 250;
+
+ mutex_lock(&data->update_lock);
+ data->reg[param->msb[0]] = temp;
+ write_byte(client, param->msb[0], temp);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+/*
+ * The aSC7621 doesn't provide an "auto_point2". Instead, you
+ * specify the auto_point1 and a range. To keep with the sysfs
+ * hwmon specs, we synthesize the auto_point_2 from them.
+ */
+
+static u32 asc7621_range_map[] = {
+ 2000, 2500, 3330, 4000, 5000, 6670, 8000, 10000,
+ 13330, 16000, 20000, 26670, 32000, 40000, 53330, 80000,
+};
+
+static ssize_t show_ap2_temp(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ SETUP_SHOW_data_param(dev, attr);
+ long auto_point1;
+ u8 regval;
+ int temp;
+
+ mutex_lock(&data->update_lock);
+ auto_point1 = ((s8) data->reg[param->msb[1]]) * 1000;
+ regval =
+ ((data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0]);
+ temp = auto_point1 + asc7621_range_map[SENSORS_LIMIT(regval, 0, 15)];
+ mutex_unlock(&data->update_lock);
+
+ return sprintf(buf, "%d\n", temp);
+
+}
+
+static ssize_t store_ap2_temp(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ SETUP_STORE_data_param(dev, attr);
+ long reqval, auto_point1;
+ int i;
+ u8 currval, newval = 0;
+
+ if (strict_strtol(buf, 10, &reqval))
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ auto_point1 = data->reg[param->msb[1]] * 1000;
+ reqval = SENSORS_LIMIT(reqval, auto_point1 + 2000, auto_point1 + 80000);
+
+ for (i = ARRAY_SIZE(asc7621_range_map) - 1; i >= 0; i--) {
+ if (reqval >= auto_point1 + asc7621_range_map[i]) {
+ newval = i;
+ break;
+ }
+ }
+
+ newval = (newval & param->mask[0]) << param->shift[0];
+ currval = read_byte(client, param->msb[0]);
+ newval |= (currval & ~(param->mask[0] << param->shift[0]));
+ data->reg[param->msb[0]] = newval;
+ write_byte(client, param->msb[0], newval);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_pwm_ac(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ SETUP_SHOW_data_param(dev, attr);
+ u8 config, altbit, regval;
+ u8 map[] = {
+ 0x01, 0x02, 0x04, 0x1f, 0x00, 0x06, 0x07, 0x10,
+ 0x08, 0x0f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f
+ };
+
+ mutex_lock(&data->update_lock);
+ config = (data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0];
+ altbit = (data->reg[param->msb[1]] >> param->shift[1]) & param->mask[1];
+ regval = config | (altbit << 3);
+ mutex_unlock(&data->update_lock);
+
+ return sprintf(buf, "%u\n", map[SENSORS_LIMIT(regval, 0, 15)]);
+}
+
+static ssize_t store_pwm_ac(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ SETUP_STORE_data_param(dev, attr);
+ unsigned long reqval;
+ u8 currval, config, altbit, newval;
+ u16 map[] = {
+ 0x04, 0x00, 0x01, 0xff, 0x02, 0xff, 0x05, 0x06,
+ 0x08, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x0f,
+ 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x03,
+ };
+
+ if (strict_strtoul(buf, 10, &reqval))
+ return -EINVAL;
+
+ if (reqval > 31)
+ return -EINVAL;
+
+ reqval = map[reqval];
+ if (reqval == 0xff)
+ return -EINVAL;
+
+ config = reqval & 0x07;
+ altbit = (reqval >> 3) & 0x01;
+
+ config = (config & param->mask[0]) << param->shift[0];
+ altbit = (altbit & param->mask[1]) << param->shift[1];
+
+ mutex_lock(&data->update_lock);
+ currval = read_byte(client, param->msb[0]);
+ newval = config | (currval & ~(param->mask[0] << param->shift[0]));
+ newval = altbit | (newval & ~(param->mask[1] << param->shift[1]));
+ data->reg[param->msb[0]] = newval;
+ write_byte(client, param->msb[0], newval);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_pwm_enable(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ SETUP_SHOW_data_param(dev, attr);
+ u8 config, altbit, minoff, val, newval;
+
+ mutex_lock(&data->update_lock);
+ config = (data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0];
+ altbit = (data->reg[param->msb[1]] >> param->shift[1]) & param->mask[1];
+ minoff = (data->reg[param->msb[2]] >> param->shift[2]) & param->mask[2];
+ mutex_unlock(&data->update_lock);
+
+ val = config | (altbit << 3);
+ newval = 0;
+
+ if (val == 3 || val >= 10)
+ newval = 255;
+ else if (val == 4)
+ newval = 0;
+ else if (val == 7)
+ newval = 1;
+ else if (minoff == 1)
+ newval = 2;
+ else
+ newval = 3;
+
+ return sprintf(buf, "%u\n", newval);
+}
+
+static ssize_t store_pwm_enable(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ SETUP_STORE_data_param(dev, attr);
+ long reqval;
+ u8 currval, config, altbit, newval, minoff = 255;
+
+ if (strict_strtol(buf, 10, &reqval))
+ return -EINVAL;
+
+ switch (reqval) {
+ case 0:
+ newval = 0x04;
+ break;
+ case 1:
+ newval = 0x07;
+ break;
+ case 2:
+ newval = 0x00;
+ minoff = 1;
+ break;
+ case 3:
+ newval = 0x00;
+ minoff = 0;
+ break;
+ case 255:
+ newval = 0x03;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ config = newval & 0x07;
+ altbit = (newval >> 3) & 0x01;
+
+ mutex_lock(&data->update_lock);
+ config = (config & param->mask[0]) << param->shift[0];
+ altbit = (altbit & param->mask[1]) << param->shift[1];
+ currval = read_byte(client, param->msb[0]);
+ newval = config | (currval & ~(param->mask[0] << param->shift[0]));
+ newval = altbit | (newval & ~(param->mask[1] << param->shift[1]));
+ data->reg[param->msb[0]] = newval;
+ write_byte(client, param->msb[0], newval);
+ if (minoff < 255) {
+ minoff = (minoff & param->mask[2]) << param->shift[2];
+ currval = read_byte(client, param->msb[2]);
+ newval =
+ minoff | (currval & ~(param->mask[2] << param->shift[2]));
+ data->reg[param->msb[2]] = newval;
+ write_byte(client, param->msb[2], newval);
+ }
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static u32 asc7621_pwm_freq_map[] = {
+ 10, 15, 23, 30, 38, 47, 62, 94,
+ 23000, 24000, 25000, 26000, 27000, 28000, 29000, 30000
+};
+
+static ssize_t show_pwm_freq(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ SETUP_SHOW_data_param(dev, attr);
+ u8 regval =
+ (data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0];
+
+ regval = SENSORS_LIMIT(regval, 0, 15);
+
+ return sprintf(buf, "%u\n", asc7621_pwm_freq_map[regval]);
+}
+
+static ssize_t store_pwm_freq(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ SETUP_STORE_data_param(dev, attr);
+ unsigned long reqval;
+ u8 currval, newval = 255;
+ int i;
+
+ if (strict_strtoul(buf, 10, &reqval))
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(asc7621_pwm_freq_map); i++) {
+ if (reqval == asc7621_pwm_freq_map[i]) {
+ newval = i;
+ break;
+ }
+ }
+ if (newval == 255)
+ return -EINVAL;
+
+ newval = (newval & param->mask[0]) << param->shift[0];
+
+ mutex_lock(&data->update_lock);
+ currval = read_byte(client, param->msb[0]);
+ newval |= (currval & ~(param->mask[0] << param->shift[0]));
+ data->reg[param->msb[0]] = newval;
+ write_byte(client, param->msb[0], newval);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static u32 asc7621_pwm_auto_spinup_map[] = {
+ 0, 100, 250, 400, 700, 1000, 2000, 4000
+};
+
+static ssize_t show_pwm_ast(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ SETUP_SHOW_data_param(dev, attr);
+ u8 regval =
+ (data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0];
+
+ regval = SENSORS_LIMIT(regval, 0, 7);
+
+ return sprintf(buf, "%u\n", asc7621_pwm_auto_spinup_map[regval]);
+
+}
+
+static ssize_t store_pwm_ast(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ SETUP_STORE_data_param(dev, attr);
+ long reqval;
+ u8 currval, newval = 255;
+ u32 i;
+
+ if (strict_strtol(buf, 10, &reqval))
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(asc7621_pwm_auto_spinup_map); i++) {
+ if (reqval == asc7621_pwm_auto_spinup_map[i]) {
+ newval = i;
+ break;
+ }
+ }
+ if (newval == 255)
+ return -EINVAL;
+
+ newval = (newval & param->mask[0]) << param->shift[0];
+
+ mutex_lock(&data->update_lock);
+ currval = read_byte(client, param->msb[0]);
+ newval |= (currval & ~(param->mask[0] << param->shift[0]));
+ data->reg[param->msb[0]] = newval;
+ write_byte(client, param->msb[0], newval);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static u32 asc7621_temp_smoothing_time_map[] = {
+ 35000, 17600, 11800, 7000, 4400, 3000, 1600, 800
+};
+
+static ssize_t show_temp_st(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ SETUP_SHOW_data_param(dev, attr);
+ u8 regval =
+ (data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0];
+ regval = SENSORS_LIMIT(regval, 0, 7);
+
+ return sprintf(buf, "%u\n", asc7621_temp_smoothing_time_map[regval]);
+}
+
+static ssize_t store_temp_st(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ SETUP_STORE_data_param(dev, attr);
+ long reqval;
+ u8 currval, newval = 255;
+ u32 i;
+
+ if (strict_strtol(buf, 10, &reqval))
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(asc7621_temp_smoothing_time_map); i++) {
+ if (reqval == asc7621_temp_smoothing_time_map[i]) {
+ newval = i;
+ break;
+ }
+ }
+
+ if (newval == 255)
+ return -EINVAL;
+
+ newval = (newval & param->mask[0]) << param->shift[0];
+
+ mutex_lock(&data->update_lock);
+ currval = read_byte(client, param->msb[0]);
+ newval |= (currval & ~(param->mask[0] << param->shift[0]));
+ data->reg[param->msb[0]] = newval;
+ write_byte(client, param->msb[0], newval);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+/*
+ * End of data handlers
+ *
+ * These defines do nothing more than make the table easier
+ * to read when wrapped at column 80.
+ */
+
+/*
+ * Creates a variable length array inititalizer.
+ * VAA(1,3,5,7) would produce {1,3,5,7}
+ */
+#define VAA(args...) {args}
+
+#define PREAD(name, n, pri, rm, rl, m, s, r) \
+ {.sda = SENSOR_ATTR(name, S_IRUGO, show_##r, NULL, n), \
+ .priority = pri, .msb[0] = rm, .lsb[0] = rl, .mask[0] = m, \
+ .shift[0] = s,}
+
+#define PWRITE(name, n, pri, rm, rl, m, s, r) \
+ {.sda = SENSOR_ATTR(name, S_IRUGO | S_IWUSR, show_##r, store_##r, n), \
+ .priority = pri, .msb[0] = rm, .lsb[0] = rl, .mask[0] = m, \
+ .shift[0] = s,}
+
+/*
+ * PWRITEM assumes that the initializers for the .msb, .lsb, .mask and .shift
+ * were created using the VAA macro.
+ */
+#define PWRITEM(name, n, pri, rm, rl, m, s, r) \
+ {.sda = SENSOR_ATTR(name, S_IRUGO | S_IWUSR, show_##r, store_##r, n), \
+ .priority = pri, .msb = rm, .lsb = rl, .mask = m, .shift = s,}
+
+static struct asc7621_param asc7621_params[] = {
+ PREAD(in0_input, 0, PRI_HIGH, 0x20, 0x13, 0, 0, in10),
+ PREAD(in1_input, 1, PRI_HIGH, 0x21, 0x18, 0, 0, in10),
+ PREAD(in2_input, 2, PRI_HIGH, 0x22, 0x11, 0, 0, in10),
+ PREAD(in3_input, 3, PRI_HIGH, 0x23, 0x12, 0, 0, in10),
+ PREAD(in4_input, 4, PRI_HIGH, 0x24, 0x14, 0, 0, in10),
+
+ PWRITE(in0_min, 0, PRI_LOW, 0x44, 0, 0, 0, in8),
+ PWRITE(in1_min, 1, PRI_LOW, 0x46, 0, 0, 0, in8),
+ PWRITE(in2_min, 2, PRI_LOW, 0x48, 0, 0, 0, in8),
+ PWRITE(in3_min, 3, PRI_LOW, 0x4a, 0, 0, 0, in8),
+ PWRITE(in4_min, 4, PRI_LOW, 0x4c, 0, 0, 0, in8),
+
+ PWRITE(in0_max, 0, PRI_LOW, 0x45, 0, 0, 0, in8),
+ PWRITE(in1_max, 1, PRI_LOW, 0x47, 0, 0, 0, in8),
+ PWRITE(in2_max, 2, PRI_LOW, 0x49, 0, 0, 0, in8),
+ PWRITE(in3_max, 3, PRI_LOW, 0x4b, 0, 0, 0, in8),
+ PWRITE(in4_max, 4, PRI_LOW, 0x4d, 0, 0, 0, in8),
+
+ PREAD(in0_alarm, 0, PRI_LOW, 0x41, 0, 0x01, 0, bitmask),
+ PREAD(in1_alarm, 1, PRI_LOW, 0x41, 0, 0x01, 1, bitmask),
+ PREAD(in2_alarm, 2, PRI_LOW, 0x41, 0, 0x01, 2, bitmask),
+ PREAD(in3_alarm, 3, PRI_LOW, 0x41, 0, 0x01, 3, bitmask),
+ PREAD(in4_alarm, 4, PRI_LOW, 0x42, 0, 0x01, 0, bitmask),
+
+ PREAD(fan1_input, 0, PRI_HIGH, 0x29, 0x28, 0, 0, fan16),
+ PREAD(fan2_input, 1, PRI_HIGH, 0x2b, 0x2a, 0, 0, fan16),
+ PREAD(fan3_input, 2, PRI_HIGH, 0x2d, 0x2c, 0, 0, fan16),
+ PREAD(fan4_input, 3, PRI_HIGH, 0x2f, 0x2e, 0, 0, fan16),
+
+ PWRITE(fan1_min, 0, PRI_LOW, 0x55, 0x54, 0, 0, fan16),
+ PWRITE(fan2_min, 1, PRI_LOW, 0x57, 0x56, 0, 0, fan16),
+ PWRITE(fan3_min, 2, PRI_LOW, 0x59, 0x58, 0, 0, fan16),
+ PWRITE(fan4_min, 3, PRI_LOW, 0x5b, 0x5a, 0, 0, fan16),
+
+ PREAD(fan1_alarm, 0, PRI_LOW, 0x42, 0, 0x01, 0, bitmask),
+ PREAD(fan2_alarm, 1, PRI_LOW, 0x42, 0, 0x01, 1, bitmask),
+ PREAD(fan3_alarm, 2, PRI_LOW, 0x42, 0, 0x01, 2, bitmask),
+ PREAD(fan4_alarm, 3, PRI_LOW, 0x42, 0, 0x01, 3, bitmask),
+
+ PREAD(temp1_input, 0, PRI_HIGH, 0x25, 0x10, 0, 0, temp10),
+ PREAD(temp2_input, 1, PRI_HIGH, 0x26, 0x15, 0, 0, temp10),
+ PREAD(temp3_input, 2, PRI_HIGH, 0x27, 0x16, 0, 0, temp10),
+ PREAD(temp4_input, 3, PRI_HIGH, 0x33, 0x17, 0, 0, temp10),
+ PREAD(temp5_input, 4, PRI_HIGH, 0xf7, 0xf6, 0, 0, temp10),
+ PREAD(temp6_input, 5, PRI_HIGH, 0xf9, 0xf8, 0, 0, temp10),
+ PREAD(temp7_input, 6, PRI_HIGH, 0xfb, 0xfa, 0, 0, temp10),
+ PREAD(temp8_input, 7, PRI_HIGH, 0xfd, 0xfc, 0, 0, temp10),
+
+ PWRITE(temp1_min, 0, PRI_LOW, 0x4e, 0, 0, 0, temp8),
+ PWRITE(temp2_min, 1, PRI_LOW, 0x50, 0, 0, 0, temp8),
+ PWRITE(temp3_min, 2, PRI_LOW, 0x52, 0, 0, 0, temp8),
+ PWRITE(temp4_min, 3, PRI_LOW, 0x34, 0, 0, 0, temp8),
+
+ PWRITE(temp1_max, 0, PRI_LOW, 0x4f, 0, 0, 0, temp8),
+ PWRITE(temp2_max, 1, PRI_LOW, 0x51, 0, 0, 0, temp8),
+ PWRITE(temp3_max, 2, PRI_LOW, 0x53, 0, 0, 0, temp8),
+ PWRITE(temp4_max, 3, PRI_LOW, 0x35, 0, 0, 0, temp8),
+
+ PREAD(temp1_alarm, 0, PRI_LOW, 0x41, 0, 0x01, 4, bitmask),
+ PREAD(temp2_alarm, 1, PRI_LOW, 0x41, 0, 0x01, 5, bitmask),
+ PREAD(temp3_alarm, 2, PRI_LOW, 0x41, 0, 0x01, 6, bitmask),
+ PREAD(temp4_alarm, 3, PRI_LOW, 0x43, 0, 0x01, 0, bitmask),
+
+ PWRITE(temp1_source, 0, PRI_LOW, 0x02, 0, 0x07, 4, bitmask),
+ PWRITE(temp2_source, 1, PRI_LOW, 0x02, 0, 0x07, 0, bitmask),
+ PWRITE(temp3_source, 2, PRI_LOW, 0x03, 0, 0x07, 4, bitmask),
+ PWRITE(temp4_source, 3, PRI_LOW, 0x03, 0, 0x07, 0, bitmask),
+
+ PWRITE(temp1_smoothing_enable, 0, PRI_LOW, 0x62, 0, 0x01, 3, bitmask),
+ PWRITE(temp2_smoothing_enable, 1, PRI_LOW, 0x63, 0, 0x01, 7, bitmask),
+ PWRITE(temp3_smoothing_enable, 2, PRI_LOW, 0x64, 0, 0x01, 3, bitmask),
+ PWRITE(temp4_smoothing_enable, 3, PRI_LOW, 0x3c, 0, 0x01, 3, bitmask),
+
+ PWRITE(temp1_smoothing_time, 0, PRI_LOW, 0x62, 0, 0x07, 0, temp_st),
+ PWRITE(temp2_smoothing_time, 1, PRI_LOW, 0x63, 0, 0x07, 4, temp_st),
+ PWRITE(temp3_smoothing_time, 2, PRI_LOW, 0x63, 0, 0x07, 0, temp_st),
+ PWRITE(temp4_smoothing_time, 3, PRI_LOW, 0x3c, 0, 0x07, 0, temp_st),
+
+ PWRITE(temp1_auto_point1_temp_hyst, 0, PRI_LOW, 0x6d, 0, 0x0f, 4,
+ bitmask),
+ PWRITE(temp2_auto_point1_temp_hyst, 1, PRI_LOW, 0x6d, 0, 0x0f, 0,
+ bitmask),
+ PWRITE(temp3_auto_point1_temp_hyst, 2, PRI_LOW, 0x6e, 0, 0x0f, 4,
+ bitmask),
+ PWRITE(temp4_auto_point1_temp_hyst, 3, PRI_LOW, 0x6e, 0, 0x0f, 0,
+ bitmask),
+
+ PREAD(temp1_auto_point2_temp_hyst, 0, PRI_LOW, 0x6d, 0, 0x0f, 4,
+ bitmask),
+ PREAD(temp2_auto_point2_temp_hyst, 1, PRI_LOW, 0x6d, 0, 0x0f, 0,
+ bitmask),
+ PREAD(temp3_auto_point2_temp_hyst, 2, PRI_LOW, 0x6e, 0, 0x0f, 4,
+ bitmask),
+ PREAD(temp4_auto_point2_temp_hyst, 3, PRI_LOW, 0x6e, 0, 0x0f, 0,
+ bitmask),
+
+ PWRITE(temp1_auto_point1_temp, 0, PRI_LOW, 0x67, 0, 0, 0, temp8),
+ PWRITE(temp2_auto_point1_temp, 1, PRI_LOW, 0x68, 0, 0, 0, temp8),
+ PWRITE(temp3_auto_point1_temp, 2, PRI_LOW, 0x69, 0, 0, 0, temp8),
+ PWRITE(temp4_auto_point1_temp, 3, PRI_LOW, 0x3b, 0, 0, 0, temp8),
+
+ PWRITEM(temp1_auto_point2_temp, 0, PRI_LOW, VAA(0x5f, 0x67), VAA(0),
+ VAA(0x0f), VAA(4), ap2_temp),
+ PWRITEM(temp2_auto_point2_temp, 1, PRI_LOW, VAA(0x60, 0x68), VAA(0),
+ VAA(0x0f), VAA(4), ap2_temp),
+ PWRITEM(temp3_auto_point2_temp, 2, PRI_LOW, VAA(0x61, 0x69), VAA(0),
+ VAA(0x0f), VAA(4), ap2_temp),
+ PWRITEM(temp4_auto_point2_temp, 3, PRI_LOW, VAA(0x3c, 0x3b), VAA(0),
+ VAA(0x0f), VAA(4), ap2_temp),
+
+ PWRITE(temp1_crit, 0, PRI_LOW, 0x6a, 0, 0, 0, temp8),
+ PWRITE(temp2_crit, 1, PRI_LOW, 0x6b, 0, 0, 0, temp8),
+ PWRITE(temp3_crit, 2, PRI_LOW, 0x6c, 0, 0, 0, temp8),
+ PWRITE(temp4_crit, 3, PRI_LOW, 0x3d, 0, 0, 0, temp8),
+
+ PWRITE(temp5_enable, 4, PRI_LOW, 0x0e, 0, 0x01, 0, bitmask),
+ PWRITE(temp6_enable, 5, PRI_LOW, 0x0e, 0, 0x01, 1, bitmask),
+ PWRITE(temp7_enable, 6, PRI_LOW, 0x0e, 0, 0x01, 2, bitmask),
+ PWRITE(temp8_enable, 7, PRI_LOW, 0x0e, 0, 0x01, 3, bitmask),
+
+ PWRITE(remote1_offset, 0, PRI_LOW, 0x1c, 0, 0, 0, temp62),
+ PWRITE(remote2_offset, 1, PRI_LOW, 0x1d, 0, 0, 0, temp62),
+
+ PWRITE(pwm1, 0, PRI_HIGH, 0x30, 0, 0, 0, u8),
+ PWRITE(pwm2, 1, PRI_HIGH, 0x31, 0, 0, 0, u8),
+ PWRITE(pwm3, 2, PRI_HIGH, 0x32, 0, 0, 0, u8),
+
+ PWRITE(pwm1_invert, 0, PRI_LOW, 0x5c, 0, 0x01, 4, bitmask),
+ PWRITE(pwm2_invert, 1, PRI_LOW, 0x5d, 0, 0x01, 4, bitmask),
+ PWRITE(pwm3_invert, 2, PRI_LOW, 0x5e, 0, 0x01, 4, bitmask),
+
+ PWRITEM(pwm1_enable, 0, PRI_LOW, VAA(0x5c, 0x5c, 0x62), VAA(0, 0, 0),
+ VAA(0x07, 0x01, 0x01), VAA(5, 3, 5), pwm_enable),
+ PWRITEM(pwm2_enable, 1, PRI_LOW, VAA(0x5d, 0x5d, 0x62), VAA(0, 0, 0),
+ VAA(0x07, 0x01, 0x01), VAA(5, 3, 6), pwm_enable),
+ PWRITEM(pwm3_enable, 2, PRI_LOW, VAA(0x5e, 0x5e, 0x62), VAA(0, 0, 0),
+ VAA(0x07, 0x01, 0x01), VAA(5, 3, 7), pwm_enable),
+
+ PWRITEM(pwm1_auto_channels, 0, PRI_LOW, VAA(0x5c, 0x5c), VAA(0, 0),
+ VAA(0x07, 0x01), VAA(5, 3), pwm_ac),
+ PWRITEM(pwm2_auto_channels, 1, PRI_LOW, VAA(0x5d, 0x5d), VAA(0, 0),
+ VAA(0x07, 0x01), VAA(5, 3), pwm_ac),
+ PWRITEM(pwm3_auto_channels, 2, PRI_LOW, VAA(0x5e, 0x5e), VAA(0, 0),
+ VAA(0x07, 0x01), VAA(5, 3), pwm_ac),
+
+ PWRITE(pwm1_auto_point1_pwm, 0, PRI_LOW, 0x64, 0, 0, 0, u8),
+ PWRITE(pwm2_auto_point1_pwm, 1, PRI_LOW, 0x65, 0, 0, 0, u8),
+ PWRITE(pwm3_auto_point1_pwm, 2, PRI_LOW, 0x66, 0, 0, 0, u8),
+
+ PWRITE(pwm1_auto_point2_pwm, 0, PRI_LOW, 0x38, 0, 0, 0, u8),
+ PWRITE(pwm2_auto_point2_pwm, 1, PRI_LOW, 0x39, 0, 0, 0, u8),
+ PWRITE(pwm3_auto_point2_pwm, 2, PRI_LOW, 0x3a, 0, 0, 0, u8),
+
+ PWRITE(pwm1_freq, 0, PRI_LOW, 0x5f, 0, 0x0f, 0, pwm_freq),
+ PWRITE(pwm2_freq, 1, PRI_LOW, 0x60, 0, 0x0f, 0, pwm_freq),
+ PWRITE(pwm3_freq, 2, PRI_LOW, 0x61, 0, 0x0f, 0, pwm_freq),
+
+ PREAD(pwm1_auto_zone_assigned, 0, PRI_LOW, 0, 0, 0x03, 2, bitmask),
+ PREAD(pwm2_auto_zone_assigned, 1, PRI_LOW, 0, 0, 0x03, 4, bitmask),
+ PREAD(pwm3_auto_zone_assigned, 2, PRI_LOW, 0, 0, 0x03, 6, bitmask),
+
+ PWRITE(pwm1_auto_spinup_time, 0, PRI_LOW, 0x5c, 0, 0x07, 0, pwm_ast),
+ PWRITE(pwm2_auto_spinup_time, 1, PRI_LOW, 0x5d, 0, 0x07, 0, pwm_ast),
+ PWRITE(pwm3_auto_spinup_time, 2, PRI_LOW, 0x5e, 0, 0x07, 0, pwm_ast),
+
+ PWRITE(peci_enable, 0, PRI_LOW, 0x40, 0, 0x01, 4, bitmask),
+ PWRITE(peci_avg, 0, PRI_LOW, 0x36, 0, 0x07, 0, bitmask),
+ PWRITE(peci_domain, 0, PRI_LOW, 0x36, 0, 0x01, 3, bitmask),
+ PWRITE(peci_legacy, 0, PRI_LOW, 0x36, 0, 0x01, 4, bitmask),
+ PWRITE(peci_diode, 0, PRI_LOW, 0x0e, 0, 0x07, 4, bitmask),
+ PWRITE(peci_4domain, 0, PRI_LOW, 0x0e, 0, 0x01, 4, bitmask),
+
+};
+
+static struct asc7621_data *asc7621_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct asc7621_data *data = i2c_get_clientdata(client);
+ int i;
+
+/*
+ * The asc7621 chips guarantee consistent reads of multi-byte values
+ * regardless of the order of the reads. No special logic is needed
+ * so we can just read the registers in whatever order they appear
+ * in the asc7621_params array.
+ */
+
+ mutex_lock(&data->update_lock);
+
+ /* Read all the high priority registers */
+
+ if (!data->valid ||
+ time_after(jiffies, data->last_high_reading + INTERVAL_HIGH)) {
+
+ for (i = 0; i < ARRAY_SIZE(asc7621_register_priorities); i++) {
+ if (asc7621_register_priorities[i] == PRI_HIGH) {
+ data->reg[i] =
+ i2c_smbus_read_byte_data(client, i) & 0xff;
+ }
+ }
+ data->last_high_reading = jiffies;
+ }; /* last_reading */
+
+ /* Read all the low priority registers. */
+
+ if (!data->valid ||
+ time_after(jiffies, data->last_low_reading + INTERVAL_LOW)) {
+
+ for (i = 0; i < ARRAY_SIZE(asc7621_params); i++) {
+ if (asc7621_register_priorities[i] == PRI_LOW) {
+ data->reg[i] =
+ i2c_smbus_read_byte_data(client, i) & 0xff;
+ }
+ }
+ data->last_low_reading = jiffies;
+ }; /* last_reading */
+
+ data->valid = 1;
+
+ mutex_unlock(&data->update_lock);
+
+ return data;
+}
+
+/*
+ * Standard detection and initialization below
+ *
+ * Helper function that checks if an address is valid
+ * for a particular chip.
+ */
+
+static inline int valid_address_for_chip(int chip_type, int address)
+{
+ int i;
+
+ for (i = 0; asc7621_chips[chip_type].addresses[i] != I2C_CLIENT_END;
+ i++) {
+ if (asc7621_chips[chip_type].addresses[i] == address)
+ return 1;
+ }
+ return 0;
+}
+
+static void asc7621_init_client(struct i2c_client *client)
+{
+ int value;
+
+ /* Warn if part was not "READY" */
+
+ value = read_byte(client, 0x40);
+
+ if (value & 0x02) {
+ dev_err(&client->dev,
+ "Client (%d,0x%02x) config is locked.\n",
+ i2c_adapter_id(client->adapter), client->addr);
+ };
+ if (!(value & 0x04)) {
+ dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n",
+ i2c_adapter_id(client->adapter), client->addr);
+ };
+
+/*
+ * Start monitoring
+ *
+ * Try to clear LOCK, Set START, save everything else
+ */
+ value = (value & ~0x02) | 0x01;
+ write_byte(client, 0x40, value & 0xff);
+
+}
+
+static int
+asc7621_probe(struct i2c_client *client, const struct i2c_device_id *id)
+{
+ struct asc7621_data *data;
+ int i, err;
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -EIO;
+
+ data = kzalloc(sizeof(struct asc7621_data), GFP_KERNEL);
+ if (data == NULL)
+ return -ENOMEM;
+
+ i2c_set_clientdata(client, data);
+ data->valid = 0;
+ mutex_init(&data->update_lock);
+
+ /* Initialize the asc7621 chip */
+ asc7621_init_client(client);
+
+ /* Create the sysfs entries */
+ for (i = 0; i < ARRAY_SIZE(asc7621_params); i++) {
+ err =
+ device_create_file(&client->dev,
+ &(asc7621_params[i].sda.dev_attr));
+ if (err)
+ goto exit_remove;
+ }
+
+ data->class_dev = hwmon_device_register(&client->dev);
+ if (IS_ERR(data->class_dev)) {
+ err = PTR_ERR(data->class_dev);
+ goto exit_remove;
+ }
+
+ return 0;
+
+exit_remove:
+ for (i = 0; i < ARRAY_SIZE(asc7621_params); i++) {
+ device_remove_file(&client->dev,
+ &(asc7621_params[i].sda.dev_attr));
+ }
+
+ i2c_set_clientdata(client, NULL);
+ kfree(data);
+ return err;
+}
+
+static int asc7621_detect(struct i2c_client *client,
+ struct i2c_board_info *info)
+{
+ struct i2c_adapter *adapter = client->adapter;
+ int company, verstep, chip_index;
+ struct device *dev;
+
+ dev = &client->dev;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -ENODEV;
+
+ for (chip_index = FIRST_CHIP; chip_index <= LAST_CHIP; chip_index++) {
+
+ if (!valid_address_for_chip(chip_index, client->addr))
+ continue;
+
+ company = read_byte(client,
+ asc7621_chips[chip_index].company_reg);
+ verstep = read_byte(client,
+ asc7621_chips[chip_index].verstep_reg);
+
+ if (company == asc7621_chips[chip_index].company_id &&
+ verstep == asc7621_chips[chip_index].verstep_id) {
+ strlcpy(client->name, asc7621_chips[chip_index].name,
+ I2C_NAME_SIZE);
+ strlcpy(info->type, asc7621_chips[chip_index].name,
+ I2C_NAME_SIZE);
+
+ dev_info(&adapter->dev, "Matched %s\n",
+ asc7621_chips[chip_index].name);
+ return 0;
+ }
+ }
+
+ return -ENODEV;
+}
+
+static int asc7621_remove(struct i2c_client *client)
+{
+ struct asc7621_data *data = i2c_get_clientdata(client);
+ int i;
+
+ hwmon_device_unregister(data->class_dev);
+
+ for (i = 0; i < ARRAY_SIZE(asc7621_params); i++) {
+ device_remove_file(&client->dev,
+ &(asc7621_params[i].sda.dev_attr));
+ }
+
+ i2c_set_clientdata(client, NULL);
+ kfree(data);
+ return 0;
+}
+
+static const struct i2c_device_id asc7621_id[] = {
+ {"asc7621", asc7621},
+ {"asc7621a", asc7621a},
+ {},
+};
+
+MODULE_DEVICE_TABLE(i2c, asc7621_id);
+
+static struct i2c_driver asc7621_driver = {
+ .class = I2C_CLASS_HWMON,
+ .driver = {
+ .name = "asc7621",
+ },
+ .probe = asc7621_probe,
+ .remove = asc7621_remove,
+ .id_table = asc7621_id,
+ .detect = asc7621_detect,
+ .address_list = normal_i2c,
+};
+
+static int __init sm_asc7621_init(void)
+{
+ int i, j;
+/*
+ * Collect all the registers needed into a single array.
+ * This way, if a register isn't actually used for anything,
+ * we don't retrieve it.
+ */
+
+ for (i = 0; i < ARRAY_SIZE(asc7621_params); i++) {
+ for (j = 0; j < ARRAY_SIZE(asc7621_params[i].msb); j++)
+ asc7621_register_priorities[asc7621_params[i].msb[j]] =
+ asc7621_params[i].priority;
+ for (j = 0; j < ARRAY_SIZE(asc7621_params[i].lsb); j++)
+ asc7621_register_priorities[asc7621_params[i].lsb[j]] =
+ asc7621_params[i].priority;
+ }
+ return i2c_add_driver(&asc7621_driver);
+}
+
+static void __exit sm_asc7621_exit(void)
+{
+ i2c_del_driver(&asc7621_driver);
+}
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("George Joseph");
+MODULE_DESCRIPTION("Andigilog aSC7621 and aSC7621a driver");
+
+module_init(sm_asc7621_init);
+module_exit(sm_asc7621_exit);
diff --git a/drivers/hwmon/fschmd.c b/drivers/hwmon/fschmd.c
index fa07282..0627f7a 100644
--- a/drivers/hwmon/fschmd.c
+++ b/drivers/hwmon/fschmd.c
@@ -267,7 +267,7 @@ struct fschmd_data {
struct list_head list; /* member of the watchdog_data_list */
struct kref kref;
struct miscdevice watchdog_miscdev;
- int kind;
+ enum chips kind;
unsigned long watchdog_is_open;
char watchdog_expect_close;
char watchdog_name[10]; /* must be unique to avoid sysfs conflict */
@@ -325,8 +325,7 @@ static ssize_t show_in_value(struct device *dev,
int index = to_sensor_dev_attr(devattr)->index;
struct fschmd_data *data = fschmd_update_device(dev);
- /* fscher / fschrc - 1 as data->kind is an array index, not a chips */
- if (data->kind == (fscher - 1) || data->kind >= (fschrc - 1))
+ if (data->kind == fscher || data->kind >= fschrc)
return sprintf(buf, "%d\n", (data->volt[index] * dmi_vref *
dmi_mult[index]) / 255 + dmi_offset[index]);
else
@@ -492,7 +491,7 @@ static ssize_t show_pwm_auto_point1_pwm(struct device *dev,
int val = data->fan_min[index];
/* 0 = allow turning off (except on the syl), 1-255 = 50-100% */
- if (val || data->kind == fscsyl - 1)
+ if (val || data->kind == fscsyl)
val = val / 2 + 128;
return sprintf(buf, "%d\n", val);
@@ -506,7 +505,7 @@ static ssize_t store_pwm_auto_point1_pwm(struct device *dev,
unsigned long v = simple_strtoul(buf, NULL, 10);
/* reg: 0 = allow turning off (except on the syl), 1-255 = 50-100% */
- if (v || data->kind == fscsyl - 1) {
+ if (v || data->kind == fscsyl) {
v = SENSORS_LIMIT(v, 128, 255);
v = (v - 128) * 2 + 1;
}
@@ -1037,7 +1036,7 @@ static int fschmd_detect(struct i2c_client *client,
else
return -ENODEV;
- strlcpy(info->type, fschmd_id[kind - 1].name, I2C_NAME_SIZE);
+ strlcpy(info->type, fschmd_id[kind].name, I2C_NAME_SIZE);
return 0;
}
@@ -1065,6 +1064,7 @@ static int fschmd_probe(struct i2c_client *client,
(where the client is found through a data ptr instead of the
otherway around) */
data->client = client;
+ data->kind = kind;
if (kind == fscpos) {
/* The Poseidon has hardwired temp limits, fill these
@@ -1085,9 +1085,6 @@ static int fschmd_probe(struct i2c_client *client,
}
}
- /* i2c kind goes from 1-6, we want from 0-5 to address arrays */
- data->kind = kind - 1;
-
/* Read in some never changing registers */
data->revision = i2c_smbus_read_byte_data(client, FSCHMD_REG_REVISION);
data->global_control = i2c_smbus_read_byte_data(client,
diff --git a/drivers/hwmon/g760a.c b/drivers/hwmon/g760a.c
index 19c01a49..09ea12e 100644
--- a/drivers/hwmon/g760a.c
+++ b/drivers/hwmon/g760a.c
@@ -68,7 +68,7 @@ struct g760a_data {
#define PWM_FROM_CNT(cnt) (0xff-(cnt))
#define PWM_TO_CNT(pwm) (0xff-(pwm))
-unsigned int rpm_from_cnt(u8 val, u32 clk, u16 div)
+static inline unsigned int rpm_from_cnt(u8 val, u32 clk, u16 div)
{
return ((val == 0x00) ? 0 : ((clk*30)/(val*div)));
}
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index 0ffe84d..1002bef 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -1,40 +1,40 @@
/*
- it87.c - Part of lm_sensors, Linux kernel modules for hardware
- monitoring.
-
- The IT8705F is an LPC-based Super I/O part that contains UARTs, a
- parallel port, an IR port, a MIDI port, a floppy controller, etc., in
- addition to an Environment Controller (Enhanced Hardware Monitor and
- Fan Controller)
-
- This driver supports only the Environment Controller in the IT8705F and
- similar parts. The other devices are supported by different drivers.
-
- Supports: IT8705F Super I/O chip w/LPC interface
- IT8712F Super I/O chip w/LPC interface
- IT8716F Super I/O chip w/LPC interface
- IT8718F Super I/O chip w/LPC interface
- IT8720F Super I/O chip w/LPC interface
- IT8726F Super I/O chip w/LPC interface
- Sis950 A clone of the IT8705F
-
- Copyright (C) 2001 Chris Gauthron
- Copyright (C) 2005-2007 Jean Delvare <khali@linux-fr.org>
-
- 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., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
+ * it87.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring.
+ *
+ * The IT8705F is an LPC-based Super I/O part that contains UARTs, a
+ * parallel port, an IR port, a MIDI port, a floppy controller, etc., in
+ * addition to an Environment Controller (Enhanced Hardware Monitor and
+ * Fan Controller)
+ *
+ * This driver supports only the Environment Controller in the IT8705F and
+ * similar parts. The other devices are supported by different drivers.
+ *
+ * Supports: IT8705F Super I/O chip w/LPC interface
+ * IT8712F Super I/O chip w/LPC interface
+ * IT8716F Super I/O chip w/LPC interface
+ * IT8718F Super I/O chip w/LPC interface
+ * IT8720F Super I/O chip w/LPC interface
+ * IT8726F Super I/O chip w/LPC interface
+ * Sis950 A clone of the IT8705F
+ *
+ * Copyright (C) 2001 Chris Gauthron
+ * Copyright (C) 2005-2010 Jean Delvare <khali@linux-fr.org>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
#include <linux/module.h>
#include <linux/init.h>
@@ -128,6 +128,7 @@ superio_exit(void)
#define IT87_SIO_GPIO5_REG 0x29
#define IT87_SIO_PINX2_REG 0x2c /* Pin selection */
#define IT87_SIO_VID_REG 0xfc /* VID value */
+#define IT87_SIO_BEEP_PIN_REG 0xf6 /* Beep pin mapping */
/* Update battery voltage after every reading if true */
static int update_vbat;
@@ -187,9 +188,13 @@ static const u8 IT87_REG_FANX_MIN[] = { 0x1b, 0x1c, 0x1d, 0x85, 0x87 };
#define IT87_REG_VIN_ENABLE 0x50
#define IT87_REG_TEMP_ENABLE 0x51
+#define IT87_REG_BEEP_ENABLE 0x5c
#define IT87_REG_CHIPID 0x58
+#define IT87_REG_AUTO_TEMP(nr, i) (0x60 + (nr) * 8 + (i))
+#define IT87_REG_AUTO_PWM(nr, i) (0x65 + (nr) * 8 + (i))
+
#define IN_TO_REG(val) (SENSORS_LIMIT((((val) + 8)/16),0,255))
#define IN_FROM_REG(val) ((val) * 16)
@@ -246,6 +251,7 @@ struct it87_sio_data {
/* Values read from Super-I/O config space */
u8 revision;
u8 vid_value;
+ u8 beep_pin;
/* Features skipped based on config or DMI */
u8 skip_vid;
u8 skip_fan;
@@ -279,9 +285,21 @@ struct it87_data {
u8 vid; /* Register encoding, combined */
u8 vrm;
u32 alarms; /* Register encoding, combined */
+ u8 beeps; /* Register encoding */
u8 fan_main_ctrl; /* Register value */
u8 fan_ctl; /* Register value */
- u8 manual_pwm_ctl[3]; /* manual PWM value set by user */
+
+ /* The following 3 arrays correspond to the same registers. The
+ * meaning of bits 6-0 depends on the value of bit 7, and we want
+ * to preserve settings on mode changes, so we have to track all
+ * values separately. */
+ u8 pwm_ctrl[3]; /* Register value */
+ u8 pwm_duty[3]; /* Manual PWM value set by user (bit 6-0) */
+ u8 pwm_temp_map[3]; /* PWM to temp. chan. mapping (bits 1-0) */
+
+ /* Automatic fan speed control registers */
+ u8 auto_pwm[3][4]; /* [nr][3] is hard-coded */
+ s8 auto_temp[3][5]; /* [nr][0] is point1_temp_hyst */
};
static inline int has_16bit_fans(const struct it87_data *data)
@@ -296,6 +314,15 @@ static inline int has_16bit_fans(const struct it87_data *data)
|| data->type == it8720;
}
+static inline int has_old_autopwm(const struct it87_data *data)
+{
+ /* The old automatic fan speed control interface is implemented
+ by IT8705F chips up to revision F and IT8712F chips up to
+ revision G. */
+ return (data->type == it87 && data->revision < 0x03)
+ || (data->type == it8712 && data->revision < 0x08);
+}
+
static int it87_probe(struct platform_device *pdev);
static int __devexit it87_remove(struct platform_device *pdev);
@@ -352,7 +379,10 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- unsigned long val = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
mutex_lock(&data->update_lock);
data->in_min[nr] = IN_TO_REG(val);
@@ -368,7 +398,10 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- unsigned long val = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
mutex_lock(&data->update_lock);
data->in_max[nr] = IN_TO_REG(val);
@@ -441,7 +474,10 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- int val = simple_strtol(buf, NULL, 10);
+ long val;
+
+ if (strict_strtol(buf, 10, &val) < 0)
+ return -EINVAL;
mutex_lock(&data->update_lock);
data->temp_high[nr] = TEMP_TO_REG(val);
@@ -456,7 +492,10 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- int val = simple_strtol(buf, NULL, 10);
+ long val;
+
+ if (strict_strtol(buf, 10, &val) < 0)
+ return -EINVAL;
mutex_lock(&data->update_lock);
data->temp_low[nr] = TEMP_TO_REG(val);
@@ -483,8 +522,9 @@ static ssize_t show_sensor(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct it87_data *data = it87_update_device(dev);
- u8 reg = data->sensor; /* In case the value is updated while we use it */
-
+ u8 reg = data->sensor; /* In case the value is updated while
+ we use it */
+
if (reg & (1 << nr))
return sprintf(buf, "3\n"); /* thermal diode */
if (reg & (8 << nr))
@@ -498,7 +538,10 @@ static ssize_t set_sensor(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- int val = simple_strtol(buf, NULL, 10);
+ long val;
+
+ if (strict_strtol(buf, 10, &val) < 0)
+ return -EINVAL;
mutex_lock(&data->update_lock);
@@ -511,9 +554,9 @@ static ssize_t set_sensor(struct device *dev, struct device_attribute *attr,
}
/* 3 = thermal diode; 4 = thermistor; 0 = disabled */
if (val == 3)
- data->sensor |= 1 << nr;
+ data->sensor |= 1 << nr;
else if (val == 4)
- data->sensor |= 8 << nr;
+ data->sensor |= 8 << nr;
else if (val != 0) {
mutex_unlock(&data->update_lock);
return -EINVAL;
@@ -531,6 +574,19 @@ show_sensor_offset(2);
show_sensor_offset(3);
/* 3 Fans */
+
+static int pwm_mode(const struct it87_data *data, int nr)
+{
+ int ctrl = data->fan_main_ctrl & (1 << nr);
+
+ if (ctrl == 0) /* Full speed */
+ return 0;
+ if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */
+ return 2;
+ else /* Manual mode */
+ return 1;
+}
+
static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
char *buf)
{
@@ -538,7 +594,7 @@ static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct it87_data *data = it87_update_device(dev);
- return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr],
+ return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
DIV_FROM_REG(data->fan_div[nr])));
}
static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
@@ -548,8 +604,8 @@ static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct it87_data *data = it87_update_device(dev);
- return sprintf(buf,"%d\n",
- FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])));
+ return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr],
+ DIV_FROM_REG(data->fan_div[nr])));
}
static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
char *buf)
@@ -560,14 +616,14 @@ static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
struct it87_data *data = it87_update_device(dev);
return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
}
-static ssize_t show_pwm_enable(struct device *dev, struct device_attribute *attr,
- char *buf)
+static ssize_t show_pwm_enable(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
int nr = sensor_attr->index;
struct it87_data *data = it87_update_device(dev);
- return sprintf(buf,"%d\n", (data->fan_main_ctrl & (1 << nr)) ? 1 : 0);
+ return sprintf(buf, "%d\n", pwm_mode(data, nr));
}
static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
char *buf)
@@ -576,7 +632,7 @@ static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct it87_data *data = it87_update_device(dev);
- return sprintf(buf,"%d\n", data->manual_pwm_ctl[nr]);
+ return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm_duty[nr]));
}
static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,
char *buf)
@@ -593,15 +649,24 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- int val = simple_strtol(buf, NULL, 10);
+ long val;
u8 reg;
+ if (strict_strtol(buf, 10, &val) < 0)
+ return -EINVAL;
+
mutex_lock(&data->update_lock);
reg = it87_read_value(data, IT87_REG_FAN_DIV);
switch (nr) {
- case 0: data->fan_div[nr] = reg & 0x07; break;
- case 1: data->fan_div[nr] = (reg >> 3) & 0x07; break;
- case 2: data->fan_div[nr] = (reg & 0x40) ? 3 : 1; break;
+ case 0:
+ data->fan_div[nr] = reg & 0x07;
+ break;
+ case 1:
+ data->fan_div[nr] = (reg >> 3) & 0x07;
+ break;
+ case 2:
+ data->fan_div[nr] = (reg & 0x40) ? 3 : 1;
+ break;
}
data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
@@ -616,10 +681,13 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- unsigned long val = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
int min;
u8 old;
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
+
mutex_lock(&data->update_lock);
old = it87_read_value(data, IT87_REG_FAN_DIV);
@@ -651,6 +719,32 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
mutex_unlock(&data->update_lock);
return count;
}
+
+/* Returns 0 if OK, -EINVAL otherwise */
+static int check_trip_points(struct device *dev, int nr)
+{
+ const struct it87_data *data = dev_get_drvdata(dev);
+ int i, err = 0;
+
+ if (has_old_autopwm(data)) {
+ for (i = 0; i < 3; i++) {
+ if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])
+ err = -EINVAL;
+ }
+ for (i = 0; i < 2; i++) {
+ if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])
+ err = -EINVAL;
+ }
+ }
+
+ if (err) {
+ dev_err(dev, "Inconsistent trip points, not switching to "
+ "automatic mode\n");
+ dev_err(dev, "Adjust the trip points and try again\n");
+ }
+ return err;
+}
+
static ssize_t set_pwm_enable(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
@@ -658,7 +752,16 @@ static ssize_t set_pwm_enable(struct device *dev,
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- int val = simple_strtol(buf, NULL, 10);
+ long val;
+
+ if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 2)
+ return -EINVAL;
+
+ /* Check trip points before switching to automatic mode */
+ if (val == 2) {
+ if (check_trip_points(dev, nr) < 0)
+ return -EINVAL;
+ }
mutex_lock(&data->update_lock);
@@ -669,16 +772,18 @@ static ssize_t set_pwm_enable(struct device *dev,
it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr));
/* set on/off mode */
data->fan_main_ctrl &= ~(1 << nr);
- it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl);
- } else if (val == 1) {
+ it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
+ data->fan_main_ctrl);
+ } else {
+ if (val == 1) /* Manual mode */
+ data->pwm_ctrl[nr] = data->pwm_duty[nr];
+ else /* Automatic mode */
+ data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];
+ it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);
/* set SmartGuardian mode */
data->fan_main_ctrl |= (1 << nr);
- it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl);
- /* set saved pwm value, clear FAN_CTLX PWM mode bit */
- it87_write_value(data, IT87_REG_PWM(nr), PWM_TO_REG(data->manual_pwm_ctl[nr]));
- } else {
- mutex_unlock(&data->update_lock);
- return -EINVAL;
+ it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
+ data->fan_main_ctrl);
}
mutex_unlock(&data->update_lock);
@@ -691,15 +796,19 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- int val = simple_strtol(buf, NULL, 10);
+ long val;
- if (val < 0 || val > 255)
+ if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 255)
return -EINVAL;
mutex_lock(&data->update_lock);
- data->manual_pwm_ctl[nr] = val;
- if (data->fan_main_ctrl & (1 << nr))
- it87_write_value(data, IT87_REG_PWM(nr), PWM_TO_REG(data->manual_pwm_ctl[nr]));
+ data->pwm_duty[nr] = PWM_TO_REG(val);
+ /* If we are in manual mode, write the duty cycle immediately;
+ * otherwise, just store it for later use. */
+ if (!(data->pwm_ctrl[nr] & 0x80)) {
+ data->pwm_ctrl[nr] = data->pwm_duty[nr];
+ it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);
+ }
mutex_unlock(&data->update_lock);
return count;
}
@@ -707,9 +816,12 @@ static ssize_t set_pwm_freq(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct it87_data *data = dev_get_drvdata(dev);
- unsigned long val = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
int i;
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
+
/* Search for the nearest available frequency */
for (i = 0; i < 7; i++) {
if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2)
@@ -724,6 +836,132 @@ static ssize_t set_pwm_freq(struct device *dev,
return count;
}
+static ssize_t show_pwm_temp_map(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index;
+
+ struct it87_data *data = it87_update_device(dev);
+ int map;
+
+ if (data->pwm_temp_map[nr] < 3)
+ map = 1 << data->pwm_temp_map[nr];
+ else
+ map = 0; /* Should never happen */
+ return sprintf(buf, "%d\n", map);
+}
+static ssize_t set_pwm_temp_map(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index;
+
+ struct it87_data *data = dev_get_drvdata(dev);
+ long val;
+ u8 reg;
+
+ /* This check can go away if we ever support automatic fan speed
+ control on newer chips. */
+ if (!has_old_autopwm(data)) {
+ dev_notice(dev, "Mapping change disabled for safety reasons\n");
+ return -EINVAL;
+ }
+
+ if (strict_strtol(buf, 10, &val) < 0)
+ return -EINVAL;
+
+ switch (val) {
+ case (1 << 0):
+ reg = 0x00;
+ break;
+ case (1 << 1):
+ reg = 0x01;
+ break;
+ case (1 << 2):
+ reg = 0x02;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ mutex_lock(&data->update_lock);
+ data->pwm_temp_map[nr] = reg;
+ /* If we are in automatic mode, write the temp mapping immediately;
+ * otherwise, just store it for later use. */
+ if (data->pwm_ctrl[nr] & 0x80) {
+ data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];
+ it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);
+ }
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_auto_pwm(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct it87_data *data = it87_update_device(dev);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int point = sensor_attr->index;
+
+ return sprintf(buf, "%d\n", PWM_FROM_REG(data->auto_pwm[nr][point]));
+}
+
+static ssize_t set_auto_pwm(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct it87_data *data = dev_get_drvdata(dev);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int point = sensor_attr->index;
+ long val;
+
+ if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 255)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ data->auto_pwm[nr][point] = PWM_TO_REG(val);
+ it87_write_value(data, IT87_REG_AUTO_PWM(nr, point),
+ data->auto_pwm[nr][point]);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_auto_temp(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct it87_data *data = it87_update_device(dev);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int point = sensor_attr->index;
+
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->auto_temp[nr][point]));
+}
+
+static ssize_t set_auto_temp(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct it87_data *data = dev_get_drvdata(dev);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int point = sensor_attr->index;
+ long val;
+
+ if (strict_strtol(buf, 10, &val) < 0 || val < -128000 || val > 127000)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ data->auto_temp[nr][point] = TEMP_TO_REG(val);
+ it87_write_value(data, IT87_REG_AUTO_TEMP(nr, point),
+ data->auto_temp[nr][point]);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
#define show_fan_offset(offset) \
static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
@@ -744,7 +982,36 @@ static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
show_pwm, set_pwm, offset - 1); \
static DEVICE_ATTR(pwm##offset##_freq, \
(offset == 1 ? S_IRUGO | S_IWUSR : S_IRUGO), \
- show_pwm_freq, (offset == 1 ? set_pwm_freq : NULL));
+ show_pwm_freq, (offset == 1 ? set_pwm_freq : NULL)); \
+static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels_temp, \
+ S_IRUGO | S_IWUSR, show_pwm_temp_map, set_pwm_temp_map, \
+ offset - 1); \
+static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_pwm, \
+ S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \
+ offset - 1, 0); \
+static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_pwm, \
+ S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \
+ offset - 1, 1); \
+static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_pwm, \
+ S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \
+ offset - 1, 2); \
+static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_pwm, \
+ S_IRUGO, show_auto_pwm, NULL, offset - 1, 3); \
+static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp, \
+ S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \
+ offset - 1, 1); \
+static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp_hyst, \
+ S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \
+ offset - 1, 0); \
+static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_temp, \
+ S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \
+ offset - 1, 2); \
+static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_temp, \
+ S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \
+ offset - 1, 3); \
+static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_temp, \
+ S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \
+ offset - 1, 4);
show_pwm_offset(1);
show_pwm_offset(2);
@@ -775,7 +1042,10 @@ static ssize_t set_fan16_min(struct device *dev, struct device_attribute *attr,
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- int val = simple_strtol(buf, NULL, 10);
+ long val;
+
+ if (strict_strtol(buf, 10, &val) < 0)
+ return -EINVAL;
mutex_lock(&data->update_lock);
data->fan_min[nr] = FAN16_TO_REG(val);
@@ -805,7 +1075,8 @@ show_fan16_offset(4);
show_fan16_offset(5);
/* Alarms */
-static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct it87_data *data = it87_update_device(dev);
return sprintf(buf, "%u\n", data->alarms);
@@ -836,27 +1107,78 @@ static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16);
static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17);
static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18);
-static ssize_t
-show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_beep(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ int bitnr = to_sensor_dev_attr(attr)->index;
+ struct it87_data *data = it87_update_device(dev);
+ return sprintf(buf, "%u\n", (data->beeps >> bitnr) & 1);
+}
+static ssize_t set_beep(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int bitnr = to_sensor_dev_attr(attr)->index;
+ struct it87_data *data = dev_get_drvdata(dev);
+ long val;
+
+ if (strict_strtol(buf, 10, &val) < 0
+ || (val != 0 && val != 1))
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE);
+ if (val)
+ data->beeps |= (1 << bitnr);
+ else
+ data->beeps &= ~(1 << bitnr);
+ it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR,
+ show_beep, set_beep, 1);
+static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1);
+static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1);
+static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1);
+static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1);
+static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1);
+static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1);
+/* fanX_beep writability is set later */
+static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0);
+static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0);
+static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0);
+static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0);
+static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0);
+static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR,
+ show_beep, set_beep, 2);
+static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, show_beep, NULL, 2);
+
+static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct it87_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", data->vrm);
}
-static ssize_t
-store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct it87_data *data = dev_get_drvdata(dev);
- u32 val;
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
- val = simple_strtoul(buf, NULL, 10);
data->vrm = val;
return count;
}
static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
-static ssize_t
-show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct it87_data *data = it87_update_device(dev);
return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
@@ -931,51 +1253,176 @@ static const struct attribute_group it87_group = {
.attrs = it87_attributes,
};
-static struct attribute *it87_attributes_opt[] = {
+static struct attribute *it87_attributes_beep[] = {
+ &sensor_dev_attr_in0_beep.dev_attr.attr,
+ &sensor_dev_attr_in1_beep.dev_attr.attr,
+ &sensor_dev_attr_in2_beep.dev_attr.attr,
+ &sensor_dev_attr_in3_beep.dev_attr.attr,
+ &sensor_dev_attr_in4_beep.dev_attr.attr,
+ &sensor_dev_attr_in5_beep.dev_attr.attr,
+ &sensor_dev_attr_in6_beep.dev_attr.attr,
+ &sensor_dev_attr_in7_beep.dev_attr.attr,
+
+ &sensor_dev_attr_temp1_beep.dev_attr.attr,
+ &sensor_dev_attr_temp2_beep.dev_attr.attr,
+ &sensor_dev_attr_temp3_beep.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group it87_group_beep = {
+ .attrs = it87_attributes_beep,
+};
+
+static struct attribute *it87_attributes_fan16[5][3+1] = { {
&sensor_dev_attr_fan1_input16.dev_attr.attr,
&sensor_dev_attr_fan1_min16.dev_attr.attr,
+ &sensor_dev_attr_fan1_alarm.dev_attr.attr,
+ NULL
+}, {
&sensor_dev_attr_fan2_input16.dev_attr.attr,
&sensor_dev_attr_fan2_min16.dev_attr.attr,
+ &sensor_dev_attr_fan2_alarm.dev_attr.attr,
+ NULL
+}, {
&sensor_dev_attr_fan3_input16.dev_attr.attr,
&sensor_dev_attr_fan3_min16.dev_attr.attr,
+ &sensor_dev_attr_fan3_alarm.dev_attr.attr,
+ NULL
+}, {
&sensor_dev_attr_fan4_input16.dev_attr.attr,
&sensor_dev_attr_fan4_min16.dev_attr.attr,
+ &sensor_dev_attr_fan4_alarm.dev_attr.attr,
+ NULL
+}, {
&sensor_dev_attr_fan5_input16.dev_attr.attr,
&sensor_dev_attr_fan5_min16.dev_attr.attr,
+ &sensor_dev_attr_fan5_alarm.dev_attr.attr,
+ NULL
+} };
+
+static const struct attribute_group it87_group_fan16[5] = {
+ { .attrs = it87_attributes_fan16[0] },
+ { .attrs = it87_attributes_fan16[1] },
+ { .attrs = it87_attributes_fan16[2] },
+ { .attrs = it87_attributes_fan16[3] },
+ { .attrs = it87_attributes_fan16[4] },
+};
+static struct attribute *it87_attributes_fan[3][4+1] = { {
&sensor_dev_attr_fan1_input.dev_attr.attr,
&sensor_dev_attr_fan1_min.dev_attr.attr,
&sensor_dev_attr_fan1_div.dev_attr.attr,
+ &sensor_dev_attr_fan1_alarm.dev_attr.attr,
+ NULL
+}, {
&sensor_dev_attr_fan2_input.dev_attr.attr,
&sensor_dev_attr_fan2_min.dev_attr.attr,
&sensor_dev_attr_fan2_div.dev_attr.attr,
+ &sensor_dev_attr_fan2_alarm.dev_attr.attr,
+ NULL
+}, {
&sensor_dev_attr_fan3_input.dev_attr.attr,
&sensor_dev_attr_fan3_min.dev_attr.attr,
&sensor_dev_attr_fan3_div.dev_attr.attr,
-
- &sensor_dev_attr_fan1_alarm.dev_attr.attr,
- &sensor_dev_attr_fan2_alarm.dev_attr.attr,
&sensor_dev_attr_fan3_alarm.dev_attr.attr,
- &sensor_dev_attr_fan4_alarm.dev_attr.attr,
- &sensor_dev_attr_fan5_alarm.dev_attr.attr,
+ NULL
+} };
+
+static const struct attribute_group it87_group_fan[3] = {
+ { .attrs = it87_attributes_fan[0] },
+ { .attrs = it87_attributes_fan[1] },
+ { .attrs = it87_attributes_fan[2] },
+};
+
+static const struct attribute_group *
+it87_get_fan_group(const struct it87_data *data)
+{
+ return has_16bit_fans(data) ? it87_group_fan16 : it87_group_fan;
+}
+static struct attribute *it87_attributes_pwm[3][4+1] = { {
&sensor_dev_attr_pwm1_enable.dev_attr.attr,
- &sensor_dev_attr_pwm2_enable.dev_attr.attr,
- &sensor_dev_attr_pwm3_enable.dev_attr.attr,
&sensor_dev_attr_pwm1.dev_attr.attr,
- &sensor_dev_attr_pwm2.dev_attr.attr,
- &sensor_dev_attr_pwm3.dev_attr.attr,
&dev_attr_pwm1_freq.attr,
+ &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
+ NULL
+}, {
+ &sensor_dev_attr_pwm2_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm2.dev_attr.attr,
&dev_attr_pwm2_freq.attr,
+ &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
+ NULL
+}, {
+ &sensor_dev_attr_pwm3_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm3.dev_attr.attr,
&dev_attr_pwm3_freq.attr,
+ &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
+ NULL
+} };
+
+static const struct attribute_group it87_group_pwm[3] = {
+ { .attrs = it87_attributes_pwm[0] },
+ { .attrs = it87_attributes_pwm[1] },
+ { .attrs = it87_attributes_pwm[2] },
+};
+static struct attribute *it87_attributes_autopwm[3][9+1] = { {
+ &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
+ NULL
+}, {
+ &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point1_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
+ NULL
+}, {
+ &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point1_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr,
+ NULL
+} };
+
+static const struct attribute_group it87_group_autopwm[3] = {
+ { .attrs = it87_attributes_autopwm[0] },
+ { .attrs = it87_attributes_autopwm[1] },
+ { .attrs = it87_attributes_autopwm[2] },
+};
+
+static struct attribute *it87_attributes_fan_beep[] = {
+ &sensor_dev_attr_fan1_beep.dev_attr.attr,
+ &sensor_dev_attr_fan2_beep.dev_attr.attr,
+ &sensor_dev_attr_fan3_beep.dev_attr.attr,
+ &sensor_dev_attr_fan4_beep.dev_attr.attr,
+ &sensor_dev_attr_fan5_beep.dev_attr.attr,
+};
+
+static struct attribute *it87_attributes_vid[] = {
&dev_attr_vrm.attr,
&dev_attr_cpu0_vid.attr,
NULL
};
-static const struct attribute_group it87_group_opt = {
- .attrs = it87_attributes_opt,
+static const struct attribute_group it87_group_vid = {
+ .attrs = it87_attributes_vid,
};
/* SuperIO detection - will change isa_address if a chip is found */
@@ -1035,6 +1482,10 @@ static int __init it87_find(unsigned short *address,
if (sio_data->type == it87) {
/* The IT8705F doesn't have VID pins at all */
sio_data->skip_vid = 1;
+
+ /* The IT8705F has a different LD number for GPIO */
+ superio_select(5);
+ sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
} else {
int reg;
@@ -1068,7 +1519,11 @@ static int __init it87_find(unsigned short *address,
pr_info("it87: in3 is VCC (+5V)\n");
if (reg & (1 << 1))
pr_info("it87: in7 is VCCH (+5V Stand-By)\n");
+
+ sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
}
+ if (sio_data->beep_pin)
+ pr_info("it87: Beeping is supported\n");
/* Disable specific features based on DMI strings */
board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
@@ -1093,14 +1548,46 @@ exit:
return err;
}
+static void it87_remove_files(struct device *dev)
+{
+ struct it87_data *data = platform_get_drvdata(pdev);
+ struct it87_sio_data *sio_data = dev->platform_data;
+ const struct attribute_group *fan_group = it87_get_fan_group(data);
+ int i;
+
+ sysfs_remove_group(&dev->kobj, &it87_group);
+ if (sio_data->beep_pin)
+ sysfs_remove_group(&dev->kobj, &it87_group_beep);
+ for (i = 0; i < 5; i++) {
+ if (!(data->has_fan & (1 << i)))
+ continue;
+ sysfs_remove_group(&dev->kobj, &fan_group[i]);
+ if (sio_data->beep_pin)
+ sysfs_remove_file(&dev->kobj,
+ it87_attributes_fan_beep[i]);
+ }
+ for (i = 0; i < 3; i++) {
+ if (sio_data->skip_pwm & (1 << 0))
+ continue;
+ sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]);
+ if (has_old_autopwm(data))
+ sysfs_remove_group(&dev->kobj,
+ &it87_group_autopwm[i]);
+ }
+ if (!sio_data->skip_vid)
+ sysfs_remove_group(&dev->kobj, &it87_group_vid);
+}
+
static int __devinit it87_probe(struct platform_device *pdev)
{
struct it87_data *data;
struct resource *res;
struct device *dev = &pdev->dev;
struct it87_sio_data *sio_data = dev->platform_data;
- int err = 0;
+ const struct attribute_group *fan_group;
+ int err = 0, i;
int enable_pwm_interface;
+ int fan_beep_need_rw;
static const char *names[] = {
"it87",
"it8712",
@@ -1118,7 +1605,8 @@ static int __devinit it87_probe(struct platform_device *pdev)
goto ERROR0;
}
- if (!(data = kzalloc(sizeof(struct it87_data), GFP_KERNEL))) {
+ data = kzalloc(sizeof(struct it87_data), GFP_KERNEL);
+ if (!data) {
err = -ENOMEM;
goto ERROR1;
}
@@ -1146,120 +1634,60 @@ static int __devinit it87_probe(struct platform_device *pdev)
it87_init_device(pdev);
/* Register sysfs hooks */
- if ((err = sysfs_create_group(&dev->kobj, &it87_group)))
+ err = sysfs_create_group(&dev->kobj, &it87_group);
+ if (err)
goto ERROR2;
+ if (sio_data->beep_pin) {
+ err = sysfs_create_group(&dev->kobj, &it87_group_beep);
+ if (err)
+ goto ERROR4;
+ }
+
/* Do not create fan files for disabled fans */
- if (has_16bit_fans(data)) {
- /* 16-bit tachometers */
- if (data->has_fan & (1 << 0)) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_fan1_input16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan1_min16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan1_alarm.dev_attr)))
- goto ERROR4;
- }
- if (data->has_fan & (1 << 1)) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_fan2_input16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan2_min16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan2_alarm.dev_attr)))
- goto ERROR4;
- }
- if (data->has_fan & (1 << 2)) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_fan3_input16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan3_min16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan3_alarm.dev_attr)))
- goto ERROR4;
- }
- if (data->has_fan & (1 << 3)) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_fan4_input16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan4_min16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan4_alarm.dev_attr)))
- goto ERROR4;
- }
- if (data->has_fan & (1 << 4)) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_fan5_input16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan5_min16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan5_alarm.dev_attr)))
- goto ERROR4;
- }
- } else {
- /* 8-bit tachometers with clock divider */
- if (data->has_fan & (1 << 0)) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_fan1_input.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan1_min.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan1_div.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan1_alarm.dev_attr)))
- goto ERROR4;
- }
- if (data->has_fan & (1 << 1)) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_fan2_input.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan2_min.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan2_div.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan2_alarm.dev_attr)))
- goto ERROR4;
- }
- if (data->has_fan & (1 << 2)) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_fan3_input.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan3_min.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan3_div.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan3_alarm.dev_attr)))
+ fan_group = it87_get_fan_group(data);
+ fan_beep_need_rw = 1;
+ for (i = 0; i < 5; i++) {
+ if (!(data->has_fan & (1 << i)))
+ continue;
+ err = sysfs_create_group(&dev->kobj, &fan_group[i]);
+ if (err)
+ goto ERROR4;
+
+ if (sio_data->beep_pin) {
+ err = sysfs_create_file(&dev->kobj,
+ it87_attributes_fan_beep[i]);
+ if (err)
goto ERROR4;
+ if (!fan_beep_need_rw)
+ continue;
+
+ /* As we have a single beep enable bit for all fans,
+ * only the first enabled fan has a writable attribute
+ * for it. */
+ if (sysfs_chmod_file(&dev->kobj,
+ it87_attributes_fan_beep[i],
+ S_IRUGO | S_IWUSR))
+ dev_dbg(dev, "chmod +w fan%d_beep failed\n",
+ i + 1);
+ fan_beep_need_rw = 0;
}
}
if (enable_pwm_interface) {
- if (!(sio_data->skip_pwm & (1 << 0))) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_pwm1_enable.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_pwm1.dev_attr))
- || (err = device_create_file(dev,
- &dev_attr_pwm1_freq)))
- goto ERROR4;
- }
- if (!(sio_data->skip_pwm & (1 << 1))) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_pwm2_enable.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_pwm2.dev_attr))
- || (err = device_create_file(dev,
- &dev_attr_pwm2_freq)))
+ for (i = 0; i < 3; i++) {
+ if (sio_data->skip_pwm & (1 << i))
+ continue;
+ err = sysfs_create_group(&dev->kobj,
+ &it87_group_pwm[i]);
+ if (err)
goto ERROR4;
- }
- if (!(sio_data->skip_pwm & (1 << 2))) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_pwm3_enable.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_pwm3.dev_attr))
- || (err = device_create_file(dev,
- &dev_attr_pwm3_freq)))
+
+ if (!has_old_autopwm(data))
+ continue;
+ err = sysfs_create_group(&dev->kobj,
+ &it87_group_autopwm[i]);
+ if (err)
goto ERROR4;
}
}
@@ -1268,10 +1696,8 @@ static int __devinit it87_probe(struct platform_device *pdev)
data->vrm = vid_which_vrm();
/* VID reading from Super-I/O config space if available */
data->vid = sio_data->vid_value;
- if ((err = device_create_file(dev,
- &dev_attr_vrm))
- || (err = device_create_file(dev,
- &dev_attr_cpu0_vid)))
+ err = sysfs_create_group(&dev->kobj, &it87_group_vid);
+ if (err)
goto ERROR4;
}
@@ -1284,8 +1710,7 @@ static int __devinit it87_probe(struct platform_device *pdev)
return 0;
ERROR4:
- sysfs_remove_group(&dev->kobj, &it87_group);
- sysfs_remove_group(&dev->kobj, &it87_group_opt);
+ it87_remove_files(dev);
ERROR2:
platform_set_drvdata(pdev, NULL);
kfree(data);
@@ -1300,8 +1725,7 @@ static int __devexit it87_remove(struct platform_device *pdev)
struct it87_data *data = platform_get_drvdata(pdev);
hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&pdev->dev.kobj, &it87_group);
- sysfs_remove_group(&pdev->dev.kobj, &it87_group_opt);
+ it87_remove_files(&pdev->dev);
release_region(data->addr, IT87_EC_EXTENT);
platform_set_drvdata(pdev, NULL);
@@ -1387,15 +1811,18 @@ static void __devinit it87_init_device(struct platform_device *pdev)
int tmp, i;
u8 mask;
- /* initialize to sane defaults:
- * - if the chip is in manual pwm mode, this will be overwritten with
- * the actual settings on the chip (so in this case, initialization
- * is not needed)
- * - if in automatic or on/off mode, we could switch to manual mode,
- * read the registers and set manual_pwm_ctl accordingly, but currently
- * this is not implemented, so we initialize to something sane */
+ /* For each PWM channel:
+ * - If it is in automatic mode, setting to manual mode should set
+ * the fan to full speed by default.
+ * - If it is in manual mode, we need a mapping to temperature
+ * channels to use when later setting to automatic mode later.
+ * Use a 1:1 mapping by default (we are clueless.)
+ * In both cases, the value can (and should) be changed by the user
+ * prior to switching to a different mode. */
for (i = 0; i < 3; i++) {
- data->manual_pwm_ctl[i] = 0xff;
+ data->pwm_temp_map[i] = i;
+ data->pwm_duty[i] = 0x7f; /* Full speed */
+ data->auto_pwm[i][3] = 0x7f; /* Full speed, hard-coded */
}
/* Some chips seem to have default value 0xff for all limit
@@ -1436,7 +1863,8 @@ static void __devinit it87_init_device(struct platform_device *pdev)
if ((data->fan_main_ctrl & mask) == 0) {
/* Enable all fan tachometers */
data->fan_main_ctrl |= mask;
- it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl);
+ it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
+ data->fan_main_ctrl);
}
data->has_fan = (data->fan_main_ctrl >> 4) & 0x07;
@@ -1461,30 +1889,32 @@ static void __devinit it87_init_device(struct platform_device *pdev)
/* Fan input pins may be used for alternative functions */
data->has_fan &= ~sio_data->skip_fan;
- /* Set current fan mode registers and the default settings for the
- * other mode registers */
- for (i = 0; i < 3; i++) {
- if (data->fan_main_ctrl & (1 << i)) {
- /* pwm mode */
- tmp = it87_read_value(data, IT87_REG_PWM(i));
- if (tmp & 0x80) {
- /* automatic pwm - not yet implemented, but
- * leave the settings made by the BIOS alone
- * until a change is requested via the sysfs
- * interface */
- } else {
- /* manual pwm */
- data->manual_pwm_ctl[i] = PWM_FROM_REG(tmp);
- }
- }
- }
-
/* Start monitoring */
it87_write_value(data, IT87_REG_CONFIG,
(it87_read_value(data, IT87_REG_CONFIG) & 0x36)
| (update_vbat ? 0x41 : 0x01));
}
+static void it87_update_pwm_ctrl(struct it87_data *data, int nr)
+{
+ data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM(nr));
+ if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */
+ data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03;
+ else /* Manual mode */
+ data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f;
+
+ if (has_old_autopwm(data)) {
+ int i;
+
+ for (i = 0; i < 5 ; i++)
+ data->auto_temp[nr][i] = it87_read_value(data,
+ IT87_REG_AUTO_TEMP(nr, i));
+ for (i = 0; i < 3 ; i++)
+ data->auto_pwm[nr][i] = it87_read_value(data,
+ IT87_REG_AUTO_PWM(nr, i));
+ }
+}
+
static struct it87_data *it87_update_device(struct device *dev)
{
struct it87_data *data = dev_get_drvdata(dev);
@@ -1494,24 +1924,22 @@ static struct it87_data *it87_update_device(struct device *dev)
if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
|| !data->valid) {
-
if (update_vbat) {
/* Cleared after each update, so reenable. Value
- returned by this read will be previous value */
+ returned by this read will be previous value */
it87_write_value(data, IT87_REG_CONFIG,
- it87_read_value(data, IT87_REG_CONFIG) | 0x40);
+ it87_read_value(data, IT87_REG_CONFIG) | 0x40);
}
for (i = 0; i <= 7; i++) {
data->in[i] =
- it87_read_value(data, IT87_REG_VIN(i));
+ it87_read_value(data, IT87_REG_VIN(i));
data->in_min[i] =
- it87_read_value(data, IT87_REG_VIN_MIN(i));
+ it87_read_value(data, IT87_REG_VIN_MIN(i));
data->in_max[i] =
- it87_read_value(data, IT87_REG_VIN_MAX(i));
+ it87_read_value(data, IT87_REG_VIN_MAX(i));
}
/* in8 (battery) has no limit registers */
- data->in[8] =
- it87_read_value(data, IT87_REG_VIN(8));
+ data->in[8] = it87_read_value(data, IT87_REG_VIN(8));
for (i = 0; i < 5; i++) {
/* Skip disabled fans */
@@ -1519,7 +1947,7 @@ static struct it87_data *it87_update_device(struct device *dev)
continue;
data->fan_min[i] =
- it87_read_value(data, IT87_REG_FAN_MIN[i]);
+ it87_read_value(data, IT87_REG_FAN_MIN[i]);
data->fan[i] = it87_read_value(data,
IT87_REG_FAN[i]);
/* Add high byte if in 16-bit mode */
@@ -1532,11 +1960,11 @@ static struct it87_data *it87_update_device(struct device *dev)
}
for (i = 0; i < 3; i++) {
data->temp[i] =
- it87_read_value(data, IT87_REG_TEMP(i));
+ it87_read_value(data, IT87_REG_TEMP(i));
data->temp_high[i] =
- it87_read_value(data, IT87_REG_TEMP_HIGH(i));
+ it87_read_value(data, IT87_REG_TEMP_HIGH(i));
data->temp_low[i] =
- it87_read_value(data, IT87_REG_TEMP_LOW(i));
+ it87_read_value(data, IT87_REG_TEMP_LOW(i));
}
/* Newer chips don't have clock dividers */
@@ -1551,9 +1979,13 @@ static struct it87_data *it87_update_device(struct device *dev)
it87_read_value(data, IT87_REG_ALARM1) |
(it87_read_value(data, IT87_REG_ALARM2) << 8) |
(it87_read_value(data, IT87_REG_ALARM3) << 16);
+ data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE);
+
data->fan_main_ctrl = it87_read_value(data,
IT87_REG_FAN_MAIN_CTRL);
data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL);
+ for (i = 0; i < 3; i++)
+ it87_update_pwm_ctrl(data, i);
data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE);
/* The 8705 does not have VID capability.
@@ -1628,7 +2060,7 @@ exit:
static int __init sm_it87_init(void)
{
int err;
- unsigned short isa_address=0;
+ unsigned short isa_address = 0;
struct it87_sio_data sio_data;
memset(&sio_data, 0, sizeof(struct it87_sio_data));
@@ -1640,7 +2072,7 @@ static int __init sm_it87_init(void)
return err;
err = it87_device_add(isa_address, &sio_data);
- if (err){
+ if (err) {
platform_driver_unregister(&it87_driver);
return err;
}
@@ -1661,7 +2093,8 @@ MODULE_DESCRIPTION("IT8705F/8712F/8716F/8718F/8720F/8726F, SiS950 driver");
module_param(update_vbat, bool, 0);
MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value");
module_param(fix_pwm_polarity, bool, 0);
-MODULE_PARM_DESC(fix_pwm_polarity, "Force PWM polarity to active high (DANGEROUS)");
+MODULE_PARM_DESC(fix_pwm_polarity,
+ "Force PWM polarity to active high (DANGEROUS)");
MODULE_LICENSE("GPL");
module_init(sm_it87_init);
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 7c9bdc1..7cc2708 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -1,7 +1,7 @@
/*
* lm90.c - Part of lm_sensors, Linux kernel modules for hardware
* monitoring
- * Copyright (C) 2003-2009 Jean Delvare <khali@linux-fr.org>
+ * Copyright (C) 2003-2010 Jean Delvare <khali@linux-fr.org>
*
* Based on the lm83 driver. The LM90 is a sensor chip made by National
* Semiconductor. It reports up to two temperatures (its own plus up to
@@ -93,7 +93,8 @@
static const unsigned short normal_i2c[] = {
0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END };
-enum chips { lm90, adm1032, lm99, lm86, max6657, adt7461, max6680, max6646 };
+enum chips { lm90, adm1032, lm99, lm86, max6657, adt7461, max6680, max6646,
+ w83l771 };
/*
* The LM90 registers
@@ -151,6 +152,7 @@ static int lm90_detect(struct i2c_client *client, struct i2c_board_info *info);
static int lm90_probe(struct i2c_client *client,
const struct i2c_device_id *id);
static void lm90_init_client(struct i2c_client *client);
+static void lm90_alert(struct i2c_client *client, unsigned int flag);
static int lm90_remove(struct i2c_client *client);
static struct lm90_data *lm90_update_device(struct device *dev);
@@ -173,6 +175,7 @@ static const struct i2c_device_id lm90_id[] = {
{ "max6659", max6657 },
{ "max6680", max6680 },
{ "max6681", max6680 },
+ { "w83l771", w83l771 },
{ }
};
MODULE_DEVICE_TABLE(i2c, lm90_id);
@@ -184,6 +187,7 @@ static struct i2c_driver lm90_driver = {
},
.probe = lm90_probe,
.remove = lm90_remove,
+ .alert = lm90_alert,
.id_table = lm90_id,
.detect = lm90_detect,
.address_list = normal_i2c,
@@ -201,6 +205,9 @@ struct lm90_data {
int kind;
int flags;
+ u8 config_orig; /* Original configuration register value */
+ u8 alert_alarms; /* Which alarm bits trigger ALERT# */
+
/* registers values */
s8 temp8[4]; /* 0: local low limit
1: local high limit
@@ -758,6 +765,14 @@ static int lm90_detect(struct i2c_client *new_client,
&& reg_convrate <= 0x07) {
name = "max6646";
}
+ } else
+ if (address == 0x4C
+ && man_id == 0x5C) { /* Winbond/Nuvoton */
+ if ((chip_id & 0xFE) == 0x10 /* W83L771AWG/ASG */
+ && (reg_config1 & 0x2A) == 0x00
+ && reg_convrate <= 0x08) {
+ name = "w83l771";
+ }
}
if (!name) { /* identification failed */
@@ -794,6 +809,19 @@ static int lm90_probe(struct i2c_client *new_client,
new_client->flags &= ~I2C_CLIENT_PEC;
}
+ /* Different devices have different alarm bits triggering the
+ * ALERT# output */
+ switch (data->kind) {
+ case lm90:
+ case lm99:
+ case lm86:
+ data->alert_alarms = 0x7b;
+ break;
+ default:
+ data->alert_alarms = 0x7c;
+ break;
+ }
+
/* Initialize the LM90 chip */
lm90_init_client(new_client);
@@ -830,7 +858,7 @@ exit:
static void lm90_init_client(struct i2c_client *client)
{
- u8 config, config_orig;
+ u8 config;
struct lm90_data *data = i2c_get_clientdata(client);
/*
@@ -842,7 +870,7 @@ static void lm90_init_client(struct i2c_client *client)
dev_warn(&client->dev, "Initialization failed!\n");
return;
}
- config_orig = config;
+ data->config_orig = config;
/* Check Temperature Range Select */
if (data->kind == adt7461) {
@@ -860,7 +888,7 @@ static void lm90_init_client(struct i2c_client *client)
}
config &= 0xBF; /* run */
- if (config != config_orig) /* Only write if changed */
+ if (config != data->config_orig) /* Only write if changed */
i2c_smbus_write_byte_data(client, LM90_REG_W_CONFIG1, config);
}
@@ -875,10 +903,46 @@ static int lm90_remove(struct i2c_client *client)
device_remove_file(&client->dev,
&sensor_dev_attr_temp2_offset.dev_attr);
+ /* Restore initial configuration */
+ i2c_smbus_write_byte_data(client, LM90_REG_W_CONFIG1,
+ data->config_orig);
+
kfree(data);
return 0;
}
+static void lm90_alert(struct i2c_client *client, unsigned int flag)
+{
+ struct lm90_data *data = i2c_get_clientdata(client);
+ u8 config, alarms;
+
+ lm90_read_reg(client, LM90_REG_R_STATUS, &alarms);
+ if ((alarms & 0x7f) == 0) {
+ dev_info(&client->dev, "Everything OK\n");
+ } else {
+ if (alarms & 0x61)
+ dev_warn(&client->dev,
+ "temp%d out of range, please check!\n", 1);
+ if (alarms & 0x1a)
+ dev_warn(&client->dev,
+ "temp%d out of range, please check!\n", 2);
+ if (alarms & 0x04)
+ dev_warn(&client->dev,
+ "temp%d diode open, please check!\n", 2);
+
+ /* Disable ALERT# output, because these chips don't implement
+ SMBus alert correctly; they should only hold the alert line
+ low briefly. */
+ if ((data->kind == adm1032 || data->kind == adt7461)
+ && (alarms & data->alert_alarms)) {
+ dev_dbg(&client->dev, "Disabling ALERT#\n");
+ lm90_read_reg(client, LM90_REG_R_CONFIG1, &config);
+ i2c_smbus_write_byte_data(client, LM90_REG_W_CONFIG1,
+ config | 0x80);
+ }
+ }
+}
+
static int lm90_read16(struct i2c_client *client, u8 regh, u8 regl, u16 *value)
{
int err;
@@ -966,6 +1030,21 @@ static struct lm90_data *lm90_update_device(struct device *dev)
}
lm90_read_reg(client, LM90_REG_R_STATUS, &data->alarms);
+ /* Re-enable ALERT# output if it was originally enabled and
+ * relevant alarms are all clear */
+ if ((data->config_orig & 0x80) == 0
+ && (data->alarms & data->alert_alarms) == 0) {
+ u8 config;
+
+ lm90_read_reg(client, LM90_REG_R_CONFIG1, &config);
+ if (config & 0x80) {
+ dev_dbg(&client->dev, "Re-enabling ALERT#\n");
+ i2c_smbus_write_byte_data(client,
+ LM90_REG_W_CONFIG1,
+ config & ~0x80);
+ }
+ }
+
data->last_updated = jiffies;
data->valid = 1;
}
diff --git a/drivers/hwmon/tmp401.c b/drivers/hwmon/tmp401.c
index a13b30e..d14a1af 100644
--- a/drivers/hwmon/tmp401.c
+++ b/drivers/hwmon/tmp401.c
@@ -134,7 +134,7 @@ struct tmp401_data {
struct mutex update_lock;
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */
- int kind;
+ enum chips kind;
/* register values */
u8 status;
@@ -524,7 +524,7 @@ static int tmp401_detect(struct i2c_client *client,
if (reg > 15)
return -ENODEV;
- strlcpy(info->type, tmp401_id[kind - 1].name, I2C_NAME_SIZE);
+ strlcpy(info->type, tmp401_id[kind].name, I2C_NAME_SIZE);
return 0;
}
@@ -572,8 +572,7 @@ static int tmp401_probe(struct i2c_client *client,
goto exit_remove;
}
- dev_info(&client->dev, "Detected TI %s chip\n",
- names[data->kind - 1]);
+ dev_info(&client->dev, "Detected TI %s chip\n", names[data->kind]);
return 0;
diff --git a/drivers/hwmon/tmp421.c b/drivers/hwmon/tmp421.c
index 4f7c051..738c472 100644
--- a/drivers/hwmon/tmp421.c
+++ b/drivers/hwmon/tmp421.c
@@ -61,9 +61,9 @@ static const u8 TMP421_TEMP_LSB[4] = { 0x10, 0x11, 0x12, 0x13 };
#define TMP423_DEVICE_ID 0x23
static const struct i2c_device_id tmp421_id[] = {
- { "tmp421", tmp421 },
- { "tmp422", tmp422 },
- { "tmp423", tmp423 },
+ { "tmp421", 2 },
+ { "tmp422", 3 },
+ { "tmp423", 4 },
{ }
};
MODULE_DEVICE_TABLE(i2c, tmp421_id);
@@ -73,21 +73,23 @@ struct tmp421_data {
struct mutex update_lock;
char valid;
unsigned long last_updated;
- int kind;
+ int channels;
u8 config;
s16 temp[4];
};
static int temp_from_s16(s16 reg)
{
- int temp = reg;
+ /* Mask out status bits */
+ int temp = reg & ~0xf;
return (temp * 1000 + 128) / 256;
}
static int temp_from_u16(u16 reg)
{
- int temp = reg;
+ /* Mask out status bits */
+ int temp = reg & ~0xf;
/* Add offset for extended temperature range. */
temp -= 64 * 256;
@@ -107,7 +109,7 @@ static struct tmp421_data *tmp421_update_device(struct device *dev)
data->config = i2c_smbus_read_byte_data(client,
TMP421_CONFIG_REG_1);
- for (i = 0; i <= data->kind; i++) {
+ for (i = 0; i < data->channels; i++) {
data->temp[i] = i2c_smbus_read_byte_data(client,
TMP421_TEMP_MSB[i]) << 8;
data->temp[i] |= i2c_smbus_read_byte_data(client,
@@ -166,7 +168,7 @@ static mode_t tmp421_is_visible(struct kobject *kobj, struct attribute *a,
devattr = container_of(a, struct device_attribute, attr);
index = to_sensor_dev_attr(devattr)->index;
- if (data->kind > index)
+ if (index < data->channels)
return a->mode;
return 0;
@@ -252,9 +254,9 @@ static int tmp421_detect(struct i2c_client *client,
return -ENODEV;
}
- strlcpy(info->type, tmp421_id[kind - 1].name, I2C_NAME_SIZE);
+ strlcpy(info->type, tmp421_id[kind].name, I2C_NAME_SIZE);
dev_info(&adapter->dev, "Detected TI %s chip at 0x%02x\n",
- names[kind - 1], client->addr);
+ names[kind], client->addr);
return 0;
}
@@ -271,7 +273,7 @@ static int tmp421_probe(struct i2c_client *client,
i2c_set_clientdata(client, data);
mutex_init(&data->update_lock);
- data->kind = id->driver_data;
+ data->channels = id->driver_data;
err = tmp421_init_client(client);
if (err)
diff --git a/drivers/hwmon/w83793.c b/drivers/hwmon/w83793.c
index 9a2022b..9de81a4 100644
--- a/drivers/hwmon/w83793.c
+++ b/drivers/hwmon/w83793.c
@@ -3,6 +3,10 @@
Copyright (C) 2006 Winbond Electronics Corp.
Yuan Mu
Rudolf Marek <r.marek@assembler.cz>
+ Copyright (C) 2009-2010 Sven Anders <anders@anduras.de>, ANDURAS AG.
+ Watchdog driver part
+ (Based partially on fschmd driver,
+ Copyright 2007-2008 by Hans de Goede)
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
@@ -35,6 +39,16 @@
#include <linux/hwmon-sysfs.h>
#include <linux/err.h>
#include <linux/mutex.h>
+#include <linux/fs.h>
+#include <linux/watchdog.h>
+#include <linux/miscdevice.h>
+#include <linux/uaccess.h>
+#include <linux/kref.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+
+/* Default values */
+#define WATCHDOG_TIMEOUT 2 /* 2 minute default timeout */
/* Addresses to scan */
static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
@@ -51,6 +65,18 @@ static int reset;
module_param(reset, bool, 0);
MODULE_PARM_DESC(reset, "Set to 1 to reset chip, not recommended");
+static int timeout = WATCHDOG_TIMEOUT; /* default timeout in minutes */
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout,
+ "Watchdog timeout in minutes. 2<= timeout <=255 (default="
+ __MODULE_STRING(WATCHDOG_TIMEOUT) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout,
+ "Watchdog cannot be stopped once started (default="
+ __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
/*
Address 0x00, 0x0d, 0x0e, 0x0f in all three banks are reserved
as ID, Bank Select registers
@@ -72,6 +98,11 @@ MODULE_PARM_DESC(reset, "Set to 1 to reset chip, not recommended");
#define W83793_REG_VID_LATCHB 0x08
#define W83793_REG_VID_CTRL 0x59
+#define W83793_REG_WDT_LOCK 0x01
+#define W83793_REG_WDT_ENABLE 0x02
+#define W83793_REG_WDT_STATUS 0x03
+#define W83793_REG_WDT_TIMEOUT 0x04
+
static u16 W83793_REG_TEMP_MODE[2] = { 0x5e, 0x5f };
#define TEMP_READ 0
@@ -223,8 +254,37 @@ struct w83793_data {
u8 tolerance[3]; /* Temp tolerance(Smart Fan I/II) */
u8 sf2_pwm[6][7]; /* Smart FanII: Fan duty cycle */
u8 sf2_temp[6][7]; /* Smart FanII: Temp level point */
+
+ /* watchdog */
+ struct i2c_client *client;
+ struct mutex watchdog_lock;
+ struct list_head list; /* member of the watchdog_data_list */
+ struct kref kref;
+ struct miscdevice watchdog_miscdev;
+ unsigned long watchdog_is_open;
+ char watchdog_expect_close;
+ char watchdog_name[10]; /* must be unique to avoid sysfs conflict */
+ unsigned int watchdog_caused_reboot;
+ int watchdog_timeout; /* watchdog timeout in minutes */
};
+/* Somewhat ugly :( global data pointer list with all devices, so that
+ we can find our device data as when using misc_register. There is no
+ other method to get to one's device data from the open file-op and
+ for usage in the reboot notifier callback. */
+static LIST_HEAD(watchdog_data_list);
+
+/* Note this lock not only protect list access, but also data.kref access */
+static DEFINE_MUTEX(watchdog_data_mutex);
+
+/* Release our data struct when we're detached from the i2c client *and* all
+ references to our watchdog device are released */
+static void w83793_release_resources(struct kref *ref)
+{
+ struct w83793_data *data = container_of(ref, struct w83793_data, kref);
+ kfree(data);
+}
+
static u8 w83793_read_value(struct i2c_client *client, u16 reg);
static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value);
static int w83793_probe(struct i2c_client *client,
@@ -1063,14 +1123,349 @@ static void w83793_init_client(struct i2c_client *client)
/* Start monitoring */
w83793_write_value(client, W83793_REG_CONFIG,
w83793_read_value(client, W83793_REG_CONFIG) | 0x01);
+}
+
+/*
+ * Watchdog routines
+ */
+
+static int watchdog_set_timeout(struct w83793_data *data, int timeout)
+{
+ int ret, mtimeout;
+
+ mtimeout = DIV_ROUND_UP(timeout, 60);
+
+ if (mtimeout > 255)
+ return -EINVAL;
+
+ mutex_lock(&data->watchdog_lock);
+ if (!data->client) {
+ ret = -ENODEV;
+ goto leave;
+ }
+
+ data->watchdog_timeout = mtimeout;
+
+ /* Set Timeout value (in Minutes) */
+ w83793_write_value(data->client, W83793_REG_WDT_TIMEOUT,
+ data->watchdog_timeout);
+
+ ret = mtimeout * 60;
+
+leave:
+ mutex_unlock(&data->watchdog_lock);
+ return ret;
+}
+
+static int watchdog_get_timeout(struct w83793_data *data)
+{
+ int timeout;
+
+ mutex_lock(&data->watchdog_lock);
+ timeout = data->watchdog_timeout * 60;
+ mutex_unlock(&data->watchdog_lock);
+
+ return timeout;
+}
+
+static int watchdog_trigger(struct w83793_data *data)
+{
+ int ret = 0;
+
+ mutex_lock(&data->watchdog_lock);
+ if (!data->client) {
+ ret = -ENODEV;
+ goto leave;
+ }
+
+ /* Set Timeout value (in Minutes) */
+ w83793_write_value(data->client, W83793_REG_WDT_TIMEOUT,
+ data->watchdog_timeout);
+
+leave:
+ mutex_unlock(&data->watchdog_lock);
+ return ret;
+}
+
+static int watchdog_enable(struct w83793_data *data)
+{
+ int ret = 0;
+
+ mutex_lock(&data->watchdog_lock);
+ if (!data->client) {
+ ret = -ENODEV;
+ goto leave;
+ }
+
+ /* Set initial timeout */
+ w83793_write_value(data->client, W83793_REG_WDT_TIMEOUT,
+ data->watchdog_timeout);
+
+ /* Enable Soft Watchdog */
+ w83793_write_value(data->client, W83793_REG_WDT_LOCK, 0x55);
+
+leave:
+ mutex_unlock(&data->watchdog_lock);
+ return ret;
+}
+
+static int watchdog_disable(struct w83793_data *data)
+{
+ int ret = 0;
+
+ mutex_lock(&data->watchdog_lock);
+ if (!data->client) {
+ ret = -ENODEV;
+ goto leave;
+ }
+
+ /* Disable Soft Watchdog */
+ w83793_write_value(data->client, W83793_REG_WDT_LOCK, 0xAA);
+
+leave:
+ mutex_unlock(&data->watchdog_lock);
+ return ret;
+}
+
+static int watchdog_open(struct inode *inode, struct file *filp)
+{
+ struct w83793_data *pos, *data = NULL;
+ int watchdog_is_open;
+
+ /* We get called from drivers/char/misc.c with misc_mtx hold, and we
+ call misc_register() from w83793_probe() with watchdog_data_mutex
+ hold, as misc_register() takes the misc_mtx lock, this is a possible
+ deadlock, so we use mutex_trylock here. */
+ if (!mutex_trylock(&watchdog_data_mutex))
+ return -ERESTARTSYS;
+ list_for_each_entry(pos, &watchdog_data_list, list) {
+ if (pos->watchdog_miscdev.minor == iminor(inode)) {
+ data = pos;
+ break;
+ }
+ }
+
+ /* Check, if device is already open */
+ watchdog_is_open = test_and_set_bit(0, &data->watchdog_is_open);
+
+ /* Increase data reference counter (if not already done).
+ Note we can never not have found data, so we don't check for this */
+ if (!watchdog_is_open)
+ kref_get(&data->kref);
+
+ mutex_unlock(&watchdog_data_mutex);
+
+ /* Check, if device is already open and possibly issue error */
+ if (watchdog_is_open)
+ return -EBUSY;
+
+ /* Enable Soft Watchdog */
+ watchdog_enable(data);
+
+ /* Store pointer to data into filp's private data */
+ filp->private_data = data;
+
+ return nonseekable_open(inode, filp);
+}
+
+static int watchdog_close(struct inode *inode, struct file *filp)
+{
+ struct w83793_data *data = filp->private_data;
+ if (data->watchdog_expect_close) {
+ watchdog_disable(data);
+ data->watchdog_expect_close = 0;
+ } else {
+ watchdog_trigger(data);
+ dev_crit(&data->client->dev,
+ "unexpected close, not stopping watchdog!\n");
+ }
+
+ clear_bit(0, &data->watchdog_is_open);
+
+ /* Decrease data reference counter */
+ mutex_lock(&watchdog_data_mutex);
+ kref_put(&data->kref, w83793_release_resources);
+ mutex_unlock(&watchdog_data_mutex);
+
+ return 0;
+}
+
+static ssize_t watchdog_write(struct file *filp, const char __user *buf,
+ size_t count, loff_t *offset)
+{
+ size_t ret;
+ struct w83793_data *data = filp->private_data;
+
+ if (count) {
+ if (!nowayout) {
+ size_t i;
+
+ /* Clear it in case it was set with a previous write */
+ data->watchdog_expect_close = 0;
+
+ for (i = 0; i != count; i++) {
+ char c;
+ if (get_user(c, buf + i))
+ return -EFAULT;
+ if (c == 'V')
+ data->watchdog_expect_close = 1;
+ }
+ }
+ ret = watchdog_trigger(data);
+ if (ret < 0)
+ return ret;
+ }
+ return count;
+}
+
+static int watchdog_ioctl(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ static struct watchdog_info ident = {
+ .options = WDIOF_KEEPALIVEPING |
+ WDIOF_SETTIMEOUT |
+ WDIOF_CARDRESET,
+ .identity = "w83793 watchdog"
+ };
+
+ int val, ret = 0;
+ struct w83793_data *data = filp->private_data;
+
+ switch (cmd) {
+ case WDIOC_GETSUPPORT:
+ if (!nowayout)
+ ident.options |= WDIOF_MAGICCLOSE;
+ if (copy_to_user((void __user *)arg, &ident, sizeof(ident)))
+ ret = -EFAULT;
+ break;
+
+ case WDIOC_GETSTATUS:
+ val = data->watchdog_caused_reboot ? WDIOF_CARDRESET : 0;
+ ret = put_user(val, (int __user *)arg);
+ break;
+
+ case WDIOC_GETBOOTSTATUS:
+ ret = put_user(0, (int __user *)arg);
+ break;
+
+ case WDIOC_KEEPALIVE:
+ ret = watchdog_trigger(data);
+ break;
+
+ case WDIOC_GETTIMEOUT:
+ val = watchdog_get_timeout(data);
+ ret = put_user(val, (int __user *)arg);
+ break;
+
+ case WDIOC_SETTIMEOUT:
+ if (get_user(val, (int __user *)arg)) {
+ ret = -EFAULT;
+ break;
+ }
+ ret = watchdog_set_timeout(data, val);
+ if (ret > 0)
+ ret = put_user(ret, (int __user *)arg);
+ break;
+
+ case WDIOC_SETOPTIONS:
+ if (get_user(val, (int __user *)arg)) {
+ ret = -EFAULT;
+ break;
+ }
+
+ if (val & WDIOS_DISABLECARD)
+ ret = watchdog_disable(data);
+ else if (val & WDIOS_ENABLECARD)
+ ret = watchdog_enable(data);
+ else
+ ret = -EINVAL;
+
+ break;
+ default:
+ ret = -ENOTTY;
+ }
+
+ return ret;
+}
+
+static const struct file_operations watchdog_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .open = watchdog_open,
+ .release = watchdog_close,
+ .write = watchdog_write,
+ .ioctl = watchdog_ioctl,
+};
+
+/*
+ * Notifier for system down
+ */
+
+static int watchdog_notify_sys(struct notifier_block *this, unsigned long code,
+ void *unused)
+{
+ struct w83793_data *data = NULL;
+
+ if (code == SYS_DOWN || code == SYS_HALT) {
+
+ /* Disable each registered watchdog */
+ mutex_lock(&watchdog_data_mutex);
+ list_for_each_entry(data, &watchdog_data_list, list) {
+ if (data->watchdog_miscdev.minor)
+ watchdog_disable(data);
+ }
+ mutex_unlock(&watchdog_data_mutex);
+ }
+
+ return NOTIFY_DONE;
}
+/*
+ * The WDT needs to learn about soft shutdowns in order to
+ * turn the timebomb registers off.
+ */
+
+static struct notifier_block watchdog_notifier = {
+ .notifier_call = watchdog_notify_sys,
+};
+
+/*
+ * Init / remove routines
+ */
+
static int w83793_remove(struct i2c_client *client)
{
struct w83793_data *data = i2c_get_clientdata(client);
struct device *dev = &client->dev;
- int i;
+ int i, tmp;
+
+ /* Unregister the watchdog (if registered) */
+ if (data->watchdog_miscdev.minor) {
+ misc_deregister(&data->watchdog_miscdev);
+
+ if (data->watchdog_is_open) {
+ dev_warn(&client->dev,
+ "i2c client detached with watchdog open! "
+ "Stopping watchdog.\n");
+ watchdog_disable(data);
+ }
+
+ mutex_lock(&watchdog_data_mutex);
+ list_del(&data->list);
+ mutex_unlock(&watchdog_data_mutex);
+
+ /* Tell the watchdog code the client is gone */
+ mutex_lock(&data->watchdog_lock);
+ data->client = NULL;
+ mutex_unlock(&data->watchdog_lock);
+ }
+
+ /* Reset Configuration Register to Disable Watch Dog Registers */
+ tmp = w83793_read_value(client, W83793_REG_CONFIG);
+ w83793_write_value(client, W83793_REG_CONFIG, tmp & ~0x04);
+
+ unregister_reboot_notifier(&watchdog_notifier);
hwmon_device_unregister(data->hwmon_dev);
@@ -1099,7 +1494,10 @@ static int w83793_remove(struct i2c_client *client)
if (data->lm75[1] != NULL)
i2c_unregister_device(data->lm75[1]);
- kfree(data);
+ /* Decrease data reference counter */
+ mutex_lock(&watchdog_data_mutex);
+ kref_put(&data->kref, w83793_release_resources);
+ mutex_unlock(&watchdog_data_mutex);
return 0;
}
@@ -1203,6 +1601,7 @@ static int w83793_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
+ const int watchdog_minors[] = { WATCHDOG_MINOR, 212, 213, 214, 215 };
struct w83793_data *data;
int i, tmp, val, err;
int files_fan = ARRAY_SIZE(w83793_left_fan) / 7;
@@ -1218,6 +1617,14 @@ static int w83793_probe(struct i2c_client *client,
i2c_set_clientdata(client, data);
data->bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL);
mutex_init(&data->update_lock);
+ mutex_init(&data->watchdog_lock);
+ INIT_LIST_HEAD(&data->list);
+ kref_init(&data->kref);
+
+ /* Store client pointer in our data struct for watchdog usage
+ (where the client is found through a data ptr instead of the
+ otherway around) */
+ data->client = client;
err = w83793_detect_subclients(client);
if (err)
@@ -1380,8 +1787,77 @@ static int w83793_probe(struct i2c_client *client,
goto exit_remove;
}
+ /* Watchdog initialization */
+
+ /* Register boot notifier */
+ err = register_reboot_notifier(&watchdog_notifier);
+ if (err != 0) {
+ dev_err(&client->dev,
+ "cannot register reboot notifier (err=%d)\n", err);
+ goto exit_devunreg;
+ }
+
+ /* Enable Watchdog registers.
+ Set Configuration Register to Enable Watch Dog Registers
+ (Bit 2) = XXXX, X1XX. */
+ tmp = w83793_read_value(client, W83793_REG_CONFIG);
+ w83793_write_value(client, W83793_REG_CONFIG, tmp | 0x04);
+
+ /* Set the default watchdog timeout */
+ data->watchdog_timeout = timeout;
+
+ /* Check, if last reboot was caused by watchdog */
+ data->watchdog_caused_reboot =
+ w83793_read_value(data->client, W83793_REG_WDT_STATUS) & 0x01;
+
+ /* Disable Soft Watchdog during initialiation */
+ watchdog_disable(data);
+
+ /* We take the data_mutex lock early so that watchdog_open() cannot
+ run when misc_register() has completed, but we've not yet added
+ our data to the watchdog_data_list (and set the default timeout) */
+ mutex_lock(&watchdog_data_mutex);
+ for (i = 0; i < ARRAY_SIZE(watchdog_minors); i++) {
+ /* Register our watchdog part */
+ snprintf(data->watchdog_name, sizeof(data->watchdog_name),
+ "watchdog%c", (i == 0) ? '\0' : ('0' + i));
+ data->watchdog_miscdev.name = data->watchdog_name;
+ data->watchdog_miscdev.fops = &watchdog_fops;
+ data->watchdog_miscdev.minor = watchdog_minors[i];
+
+ err = misc_register(&data->watchdog_miscdev);
+ if (err == -EBUSY)
+ continue;
+ if (err) {
+ data->watchdog_miscdev.minor = 0;
+ dev_err(&client->dev,
+ "Registering watchdog chardev: %d\n", err);
+ break;
+ }
+
+ list_add(&data->list, &watchdog_data_list);
+
+ dev_info(&client->dev,
+ "Registered watchdog chardev major 10, minor: %d\n",
+ watchdog_minors[i]);
+ break;
+ }
+ if (i == ARRAY_SIZE(watchdog_minors)) {
+ data->watchdog_miscdev.minor = 0;
+ dev_warn(&client->dev, "Couldn't register watchdog chardev "
+ "(due to no free minor)\n");
+ }
+
+ mutex_unlock(&watchdog_data_mutex);
+
return 0;
+ /* Unregister hwmon device */
+
+exit_devunreg:
+
+ hwmon_device_unregister(data->hwmon_dev);
+
/* Unregister sysfs hooks */
exit_remove:
@@ -1628,7 +2104,7 @@ static void __exit sensors_w83793_exit(void)
i2c_del_driver(&w83793_driver);
}
-MODULE_AUTHOR("Yuan Mu");
+MODULE_AUTHOR("Yuan Mu, Sven Anders");
MODULE_DESCRIPTION("w83793 driver");
MODULE_LICENSE("GPL");
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