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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-28 12:17:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-28 12:17:00 -0700
commit150cd843fac0160fce616fb3e5cbe64e9db7481e (patch)
treeeca7ed23a2238665462ff92fe6e9b591da3e092a /drivers
parentf063a0c0c995d010960efcc1b2ed14b99674f25c (diff)
parent44c1bcd4bcde32b2a31a6775a277706ab489c0dc (diff)
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: (68 commits) hwmon: (it87) Add support for the IT8721F/IT8758E hwmon: (it87) Move conversion functions hwmon: Remove many EXPERIMENTAL flags hwmon: (lm85) Add support for ADT7468 high-frequency PWM mode hwmon: (lm85) Document the ADT7468 as supported hwmon: (lm85) Fix ADT7468 frequency table hwmon: I2C addresses are constant Move ams driver to macintosh hwmon: (pcf8591) Don't attempt to detect devices hwmon: (pcf8591) Register as a hwmon device hwmon: (w83795) Use standard attributes for chassis intrusion hwmon: (w83795) Exclude fan control feature by default hwmon: (w83795) Add myself as co-author and maintainer hwmon: (w83795) More style cleanups hwmon: (w83795) Fix LSB reading of voltage limits hwmon: (w83795) Use dev_get_drvdata() where possible hwmon: (w83795) Delay reading pwm config registers hwmon: (w83795) Delay reading limit registers hwmon: (w83795) Move register reads to dedicated functions hwmon: (w83795) Pack similar register reads ...
Diffstat (limited to 'drivers')
-rw-r--r--drivers/hwmon/Kconfig100
-rw-r--r--drivers/hwmon/Makefile2
-rw-r--r--drivers/hwmon/adt7475.c2
-rw-r--r--drivers/hwmon/asc7621.c4
-rw-r--r--drivers/hwmon/it87.c210
-rw-r--r--drivers/hwmon/k8temp.c51
-rw-r--r--drivers/hwmon/lm75.c51
-rw-r--r--drivers/hwmon/lm85.c36
-rw-r--r--drivers/hwmon/lm90.c1014
-rw-r--r--drivers/hwmon/pcf8591.c38
-rw-r--r--drivers/hwmon/s3c-hwmon.c8
-rw-r--r--drivers/hwmon/tmp421.c4
-rw-r--r--drivers/hwmon/w83795.c2121
-rw-r--r--drivers/macintosh/Kconfig26
-rw-r--r--drivers/macintosh/Makefile2
-rw-r--r--drivers/macintosh/ams/Makefile (renamed from drivers/hwmon/ams/Makefile)0
-rw-r--r--drivers/macintosh/ams/ams-core.c (renamed from drivers/hwmon/ams/ams-core.c)0
-rw-r--r--drivers/macintosh/ams/ams-i2c.c (renamed from drivers/hwmon/ams/ams-i2c.c)0
-rw-r--r--drivers/macintosh/ams/ams-input.c (renamed from drivers/hwmon/ams/ams-input.c)0
-rw-r--r--drivers/macintosh/ams/ams-pmu.c (renamed from drivers/hwmon/ams/ams-pmu.c)0
-rw-r--r--drivers/macintosh/ams/ams.h (renamed from drivers/hwmon/ams/ams.h)0
21 files changed, 3165 insertions, 504 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index c357c835eb1..a56f6adf3b7 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -129,7 +129,7 @@ config SENSORS_ADM1025
config SENSORS_ADM1026
tristate "Analog Devices ADM1026 and compatibles"
- depends on I2C && EXPERIMENTAL
+ depends on I2C
select HWMON_VID
help
If you say yes here you get support for Analog Devices ADM1026
@@ -140,7 +140,7 @@ config SENSORS_ADM1026
config SENSORS_ADM1029
tristate "Analog Devices ADM1029"
- depends on I2C && EXPERIMENTAL
+ depends on I2C
help
If you say yes here you get support for Analog Devices ADM1029
sensor chip.
@@ -151,7 +151,7 @@ config SENSORS_ADM1029
config SENSORS_ADM1031
tristate "Analog Devices ADM1031 and compatibles"
- depends on I2C && EXPERIMENTAL
+ depends on I2C
help
If you say yes here you get support for Analog Devices ADM1031
and ADM1030 sensor chips.
@@ -202,7 +202,7 @@ config SENSORS_ADT7470
config SENSORS_ADT7475
tristate "Analog Devices ADT7473, ADT7475, ADT7476 and ADT7490"
- depends on I2C && EXPERIMENTAL
+ depends on I2C
select HWMON_VID
help
If you say yes here you get support for the Analog Devices
@@ -249,32 +249,6 @@ config SENSORS_K10TEMP
This driver can also be built as a module. If so, the module
will be called k10temp.
-config SENSORS_AMS
- tristate "Apple Motion Sensor driver"
- depends on PPC_PMAC && !PPC64 && INPUT && ((ADB_PMU && I2C = y) || (ADB_PMU && !I2C) || I2C) && EXPERIMENTAL
- select INPUT_POLLDEV
- help
- Support for the motion sensor included in PowerBooks. Includes
- implementations for PMU and I2C.
-
- This driver can also be built as a module. If so, the module
- will be called ams.
-
-config SENSORS_AMS_PMU
- bool "PMU variant"
- depends on SENSORS_AMS && ADB_PMU
- default y
- help
- PMU variant of motion sensor, found in late 2005 PowerBooks.
-
-config SENSORS_AMS_I2C
- bool "I2C variant"
- depends on SENSORS_AMS && I2C
- default y
- help
- I2C variant of motion sensor, found in early 2005 PowerBooks and
- iBooks.
-
config SENSORS_ASB100
tristate "Asus ASB100 Bach"
depends on X86 && I2C && EXPERIMENTAL
@@ -322,7 +296,6 @@ config SENSORS_I5K_AMB
config SENSORS_F71805F
tristate "Fintek F71805F/FG, F71806F/FG and F71872F/FG"
- depends on EXPERIMENTAL
help
If you say yes here you get support for hardware monitoring
features of the Fintek F71805F/FG, F71806F/FG and F71872F/FG
@@ -333,7 +306,6 @@ config SENSORS_F71805F
config SENSORS_F71882FG
tristate "Fintek F71858FG, F71862FG, F71882FG, F71889FG and F8000"
- depends on EXPERIMENTAL
help
If you say yes here you get support for hardware monitoring
features of the Fintek F71858FG, F71862FG/71863FG, F71882FG/F71883FG,
@@ -343,8 +315,8 @@ config SENSORS_F71882FG
will be called f71882fg.
config SENSORS_F75375S
- tristate "Fintek F75375S/SP and F75373";
- depends on I2C && EXPERIMENTAL
+ tristate "Fintek F75375S/SP and F75373"
+ depends on I2C
help
If you say yes here you get support for hardware monitoring
features of the Fintek F75375S/SP and F75373
@@ -456,8 +428,8 @@ config SENSORS_IT87
select HWMON_VID
help
If you say yes here you get support for ITE IT8705F, IT8712F,
- IT8716F, IT8718F, IT8720F and IT8726F sensor chips, and the
- SiS960 clone.
+ IT8716F, IT8718F, IT8720F, IT8721F, IT8726F and IT8758E sensor
+ chips, and the SiS960 clone.
This driver can also be built as a module. If so, the module
will be called it87.
@@ -499,7 +471,7 @@ config SENSORS_LM63
config SENSORS_LM70
tristate "National Semiconductor LM70 / Texas Instruments TMP121"
- depends on SPI_MASTER && EXPERIMENTAL
+ depends on SPI_MASTER
help
If you say yes here you get support for the National Semiconductor
LM70 and Texas Instruments TMP121/TMP123 digital temperature
@@ -567,7 +539,7 @@ config SENSORS_LM78
config SENSORS_LM80
tristate "National Semiconductor LM80"
- depends on I2C && EXPERIMENTAL
+ depends on I2C
help
If you say yes here you get support for National Semiconductor
LM80 sensor chips.
@@ -587,11 +559,12 @@ config SENSORS_LM83
config SENSORS_LM85
tristate "National Semiconductor LM85 and compatibles"
- depends on I2C && EXPERIMENTAL
+ depends on I2C
select HWMON_VID
help
If you say yes here you get support for National Semiconductor LM85
- sensor chips and clones: ADT7463, EMC6D100, EMC6D102 and ADM1027.
+ sensor chips and clones: ADM1027, ADT7463, ADT7468, EMC6D100,
+ EMC6D101 and EMC6D102.
This driver can also be built as a module. If so, the module
will be called lm85.
@@ -614,8 +587,8 @@ config SENSORS_LM90
If you say yes here you get support for National Semiconductor LM90,
LM86, LM89 and LM99, Analog Devices ADM1032 and ADT7461, Maxim
MAX6646, MAX6647, MAX6648, MAX6649, MAX6657, MAX6658, MAX6659,
- MAX6680, MAX6681 and MAX6692, and Winbond/Nuvoton W83L771AWG/ASG
- sensor chips.
+ MAX6680, MAX6681, MAX6692, MAX6695, MAX6696, and Winbond/Nuvoton
+ W83L771W/G/AWG/ASG sensor chips.
This driver can also be built as a module. If so, the module
will be called lm90.
@@ -726,7 +699,6 @@ config SENSORS_PC87360
config SENSORS_PC87427
tristate "National Semiconductor PC87427"
- depends on EXPERIMENTAL
help
If you say yes here you get access to the hardware monitoring
functions of the National Semiconductor PC87427 Super-I/O chip.
@@ -763,14 +735,14 @@ config SENSORS_SHT15
will be called sht15.
config SENSORS_S3C
- tristate "S3C24XX/S3C64XX Inbuilt ADC"
- depends on ARCH_S3C2410
+ tristate "Samsung built-in ADC"
+ depends on S3C_ADC
help
If you say yes here you get support for the on-board ADCs of
- the Samsung S3C24XX or S3C64XX series of SoC
+ the Samsung S3C24XX, S3C64XX and other series of SoC
This driver can also be built as a module. If so, the module
- will be called s3c-hwmo.
+ will be called s3c-hwmon.
config SENSORS_S3C_RAW
bool "Include raw channel attributes in sysfs"
@@ -854,7 +826,7 @@ config SENSORS_SMSC47M1
config SENSORS_SMSC47M192
tristate "SMSC LPC47M192 and compatibles"
- depends on I2C && EXPERIMENTAL
+ depends on I2C
select HWMON_VID
help
If you say yes here you get support for the temperature and
@@ -910,7 +882,7 @@ config SENSORS_AMC6821
config SENSORS_THMC50
tristate "Texas Instruments THMC50 / Analog Devices ADM1022"
- depends on I2C && EXPERIMENTAL
+ depends on I2C
help
If you say yes here you get support for Texas Instruments THMC50
sensor chips and clones: the Analog Devices ADM1022.
@@ -968,7 +940,6 @@ config SENSORS_VIA686A
config SENSORS_VT1211
tristate "VIA VT1211"
- depends on EXPERIMENTAL
select HWMON_VID
help
If you say yes here then you get support for hardware monitoring
@@ -1012,7 +983,7 @@ config SENSORS_W83791D
config SENSORS_W83792D
tristate "Winbond W83792D"
- depends on I2C && EXPERIMENTAL
+ depends on I2C
help
If you say yes here you get support for the Winbond W83792D chip.
@@ -1031,6 +1002,33 @@ config SENSORS_W83793
This driver can also be built as a module. If so, the module
will be called w83793.
+config SENSORS_W83795
+ tristate "Winbond/Nuvoton W83795G/ADG"
+ depends on I2C && EXPERIMENTAL
+ help
+ If you say yes here you get support for the Winbond W83795G and
+ W83795ADG hardware monitoring chip.
+
+ This driver can also be built as a module. If so, the module
+ will be called w83795.
+
+config SENSORS_W83795_FANCTRL
+ boolean "Include fan control support (DANGEROUS)"
+ depends on SENSORS_W83795 && EXPERIMENTAL
+ default n
+ help
+ If you say yes here, support for the both manual and automatic
+ fan control features will be included in the driver.
+
+ This part of the code wasn't carefully reviewed and tested yet,
+ so enabling this option is strongly discouraged on production
+ servers. Only developers and testers should enable it for the
+ time being.
+
+ Please also note that this option will create sysfs attribute
+ files which may change in the future, so you shouldn't rely
+ on them being stable.
+
config SENSORS_W83L785TS
tristate "Winbond W83L785TS-S"
depends on I2C && EXPERIMENTAL
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index d30f0f6870e..2479b3da272 100644
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_SENSORS_ASB100) += asb100.o
obj-$(CONFIG_SENSORS_W83627HF) += w83627hf.o
obj-$(CONFIG_SENSORS_W83792D) += w83792d.o
obj-$(CONFIG_SENSORS_W83793) += w83793.o
+obj-$(CONFIG_SENSORS_W83795) += w83795.o
obj-$(CONFIG_SENSORS_W83781D) += w83781d.o
obj-$(CONFIG_SENSORS_W83791D) += w83791d.o
@@ -35,7 +36,6 @@ obj-$(CONFIG_SENSORS_ADT7462) += adt7462.o
obj-$(CONFIG_SENSORS_ADT7470) += adt7470.o
obj-$(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
diff --git a/drivers/hwmon/adt7475.c b/drivers/hwmon/adt7475.c
index a0c38514568..b5fcd87931c 100644
--- a/drivers/hwmon/adt7475.c
+++ b/drivers/hwmon/adt7475.c
@@ -146,7 +146,7 @@
#define TEMP_OFFSET_REG(idx) (REG_TEMP_OFFSET_BASE + (idx))
#define TEMP_TRANGE_REG(idx) (REG_TEMP_TRANGE_BASE + (idx))
-static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
enum chips { adt7473, adt7475, adt7476, adt7490 };
diff --git a/drivers/hwmon/asc7621.c b/drivers/hwmon/asc7621.c
index 89b4f3babe8..d2596cec18b 100644
--- a/drivers/hwmon/asc7621.c
+++ b/drivers/hwmon/asc7621.c
@@ -28,7 +28,7 @@
#include <linux/mutex.h>
/* Addresses to scan */
-static unsigned short normal_i2c[] = {
+static const unsigned short normal_i2c[] = {
0x2c, 0x2d, 0x2e, I2C_CLIENT_END
};
@@ -52,7 +52,7 @@ struct asc7621_chip {
u8 company_id;
u8 verstep_reg;
u8 verstep_id;
- unsigned short *addresses;
+ const unsigned short *addresses;
};
static struct asc7621_chip asc7621_chips[] = {
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index f7701295937..14a5d981be7 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -15,7 +15,9 @@
* IT8716F Super I/O chip w/LPC interface
* IT8718F Super I/O chip w/LPC interface
* IT8720F Super I/O chip w/LPC interface
+ * IT8721F Super I/O chip w/LPC interface
* IT8726F Super I/O chip w/LPC interface
+ * IT8758E Super I/O chip w/LPC interface
* Sis950 A clone of the IT8705F
*
* Copyright (C) 2001 Chris Gauthron
@@ -54,7 +56,7 @@
#define DRVNAME "it87"
-enum chips { it87, it8712, it8716, it8718, it8720 };
+enum chips { it87, it8712, it8716, it8718, it8720, it8721 };
static unsigned short force_id;
module_param(force_id, ushort, 0);
@@ -126,6 +128,7 @@ superio_exit(void)
#define IT8716F_DEVID 0x8716
#define IT8718F_DEVID 0x8718
#define IT8720F_DEVID 0x8720
+#define IT8721F_DEVID 0x8721
#define IT8726F_DEVID 0x8726
#define IT87_ACT_REG 0x30
#define IT87_BASE_REG 0x60
@@ -202,56 +205,6 @@ static const u8 IT87_REG_FANX_MIN[] = { 0x1b, 0x1c, 0x1d, 0x85, 0x87 };
#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)
-
-static inline u8 FAN_TO_REG(long rpm, int div)
-{
- if (rpm == 0)
- return 255;
- rpm = SENSORS_LIMIT(rpm, 1, 1000000);
- return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1,
- 254);
-}
-
-static inline u16 FAN16_TO_REG(long rpm)
-{
- if (rpm == 0)
- return 0xffff;
- return SENSORS_LIMIT((1350000 + rpm) / (rpm * 2), 1, 0xfffe);
-}
-
-#define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div)))
-/* The divider is fixed to 2 in 16-bit mode */
-#define FAN16_FROM_REG(val) ((val)==0?-1:(val)==0xffff?0:1350000/((val)*2))
-
-#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)<0?(((val)-500)/1000):\
- ((val)+500)/1000),-128,127))
-#define TEMP_FROM_REG(val) ((val) * 1000)
-
-#define PWM_TO_REG(val) ((val) >> 1)
-#define PWM_FROM_REG(val) (((val)&0x7f) << 1)
-
-static int DIV_TO_REG(int val)
-{
- int answer = 0;
- while (answer < 7 && (val >>= 1))
- answer++;
- return answer;
-}
-#define DIV_FROM_REG(val) (1 << (val))
-
-static const unsigned int pwm_freq[8] = {
- 48000000 / 128,
- 24000000 / 128,
- 12000000 / 128,
- 8000000 / 128,
- 6000000 / 128,
- 3000000 / 128,
- 1500000 / 128,
- 750000 / 128,
-};
-
struct it87_sio_data {
enum chips type;
@@ -279,6 +232,7 @@ struct it87_data {
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
+ u16 in_scaled; /* Internal voltage sensors are scaled */
u8 in[9]; /* Register value */
u8 in_max[8]; /* Register value */
u8 in_min[8]; /* Register value */
@@ -310,6 +264,96 @@ struct it87_data {
s8 auto_temp[3][5]; /* [nr][0] is point1_temp_hyst */
};
+static u8 in_to_reg(const struct it87_data *data, int nr, long val)
+{
+ long lsb;
+
+ if (data->type == it8721) {
+ if (data->in_scaled & (1 << nr))
+ lsb = 24;
+ else
+ lsb = 12;
+ } else
+ lsb = 16;
+
+ val = DIV_ROUND_CLOSEST(val, lsb);
+ return SENSORS_LIMIT(val, 0, 255);
+}
+
+static int in_from_reg(const struct it87_data *data, int nr, int val)
+{
+ if (data->type == it8721) {
+ if (data->in_scaled & (1 << nr))
+ return val * 24;
+ else
+ return val * 12;
+ } else
+ return val * 16;
+}
+
+static inline u8 FAN_TO_REG(long rpm, int div)
+{
+ if (rpm == 0)
+ return 255;
+ rpm = SENSORS_LIMIT(rpm, 1, 1000000);
+ return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1,
+ 254);
+}
+
+static inline u16 FAN16_TO_REG(long rpm)
+{
+ if (rpm == 0)
+ return 0xffff;
+ return SENSORS_LIMIT((1350000 + rpm) / (rpm * 2), 1, 0xfffe);
+}
+
+#define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : (val) == 255 ? 0 : \
+ 1350000 / ((val) * (div)))
+/* The divider is fixed to 2 in 16-bit mode */
+#define FAN16_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \
+ 1350000 / ((val) * 2))
+
+#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (((val) - 500) / 1000) : \
+ ((val) + 500) / 1000), -128, 127))
+#define TEMP_FROM_REG(val) ((val) * 1000)
+
+static u8 pwm_to_reg(const struct it87_data *data, long val)
+{
+ if (data->type == it8721)
+ return val;
+ else
+ return val >> 1;
+}
+
+static int pwm_from_reg(const struct it87_data *data, u8 reg)
+{
+ if (data->type == it8721)
+ return reg;
+ else
+ return (reg & 0x7f) << 1;
+}
+
+
+static int DIV_TO_REG(int val)
+{
+ int answer = 0;
+ while (answer < 7 && (val >>= 1))
+ answer++;
+ return answer;
+}
+#define DIV_FROM_REG(val) (1 << (val))
+
+static const unsigned int pwm_freq[8] = {
+ 48000000 / 128,
+ 24000000 / 128,
+ 12000000 / 128,
+ 8000000 / 128,
+ 6000000 / 128,
+ 3000000 / 128,
+ 1500000 / 128,
+ 750000 / 128,
+};
+
static inline int has_16bit_fans(const struct it87_data *data)
{
/* IT8705F Datasheet 0.4.1, 3h == Version G.
@@ -319,7 +363,8 @@ static inline int has_16bit_fans(const struct it87_data *data)
|| (data->type == it8712 && data->revision >= 0x08)
|| data->type == it8716
|| data->type == it8718
- || data->type == it8720;
+ || data->type == it8720
+ || data->type == it8721;
}
static inline int has_old_autopwm(const struct it87_data *data)
@@ -357,7 +402,7 @@ static ssize_t show_in(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", IN_FROM_REG(data->in[nr]));
+ return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in[nr]));
}
static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
@@ -367,7 +412,7 @@ static ssize_t show_in_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", IN_FROM_REG(data->in_min[nr]));
+ return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in_min[nr]));
}
static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
@@ -377,7 +422,7 @@ static ssize_t show_in_max(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", IN_FROM_REG(data->in_max[nr]));
+ return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in_max[nr]));
}
static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
@@ -393,7 +438,7 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
return -EINVAL;
mutex_lock(&data->update_lock);
- data->in_min[nr] = IN_TO_REG(val);
+ data->in_min[nr] = in_to_reg(data, nr, val);
it87_write_value(data, IT87_REG_VIN_MIN(nr),
data->in_min[nr]);
mutex_unlock(&data->update_lock);
@@ -412,7 +457,7 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
return -EINVAL;
mutex_lock(&data->update_lock);
- data->in_max[nr] = IN_TO_REG(val);
+ data->in_max[nr] = in_to_reg(data, nr, val);
it87_write_value(data, IT87_REG_VIN_MAX(nr),
data->in_max[nr]);
mutex_unlock(&data->update_lock);
@@ -642,7 +687,8 @@ 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", PWM_FROM_REG(data->pwm_duty[nr]));
+ return sprintf(buf, "%d\n",
+ pwm_from_reg(data, data->pwm_duty[nr]));
}
static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,
char *buf)
@@ -812,7 +858,7 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
return -EINVAL;
mutex_lock(&data->update_lock);
- data->pwm_duty[nr] = PWM_TO_REG(val);
+ data->pwm_duty[nr] = pwm_to_reg(data, 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)) {
@@ -916,7 +962,8 @@ static ssize_t show_auto_pwm(struct device *dev,
int nr = sensor_attr->nr;
int point = sensor_attr->index;
- return sprintf(buf, "%d\n", PWM_FROM_REG(data->auto_pwm[nr][point]));
+ return sprintf(buf, "%d\n",
+ pwm_from_reg(data, data->auto_pwm[nr][point]));
}
static ssize_t set_auto_pwm(struct device *dev,
@@ -933,7 +980,7 @@ static ssize_t set_auto_pwm(struct device *dev,
return -EINVAL;
mutex_lock(&data->update_lock);
- data->auto_pwm[nr][point] = PWM_TO_REG(val);
+ data->auto_pwm[nr][point] = pwm_to_reg(data, val);
it87_write_value(data, IT87_REG_AUTO_PWM(nr, point),
data->auto_pwm[nr][point]);
mutex_unlock(&data->update_lock);
@@ -1203,9 +1250,16 @@ static ssize_t show_label(struct device *dev, struct device_attribute *attr,
"5VSB",
"Vbat",
};
+ static const char *labels_it8721[] = {
+ "+3.3V",
+ "3VSB",
+ "Vbat",
+ };
+ struct it87_data *data = dev_get_drvdata(dev);
int nr = to_sensor_dev_attr(attr)->index;
- return sprintf(buf, "%s\n", labels[nr]);
+ return sprintf(buf, "%s\n", data->type == it8721 ? labels_it8721[nr]
+ : labels[nr]);
}
static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_label, NULL, 0);
static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, show_label, NULL, 1);
@@ -1490,6 +1544,9 @@ static int __init it87_find(unsigned short *address,
case IT8720F_DEVID:
sio_data->type = it8720;
break;
+ case IT8721F_DEVID:
+ sio_data->type = it8721;
+ break;
case 0xffff: /* No device at all */
goto exit;
default:
@@ -1530,11 +1587,17 @@ static int __init it87_find(unsigned short *address,
int reg;
superio_select(GPIO);
- /* We need at least 4 VID pins */
+
reg = superio_inb(IT87_SIO_GPIO3_REG);
- if (reg & 0x0f) {
- pr_info("it87: VID is disabled (pins used for GPIO)\n");
+ if (sio_data->type == it8721) {
+ /* The IT8721F/IT8758E doesn't have VID pins at all */
sio_data->skip_vid = 1;
+ } else {
+ /* We need at least 4 VID pins */
+ if (reg & 0x0f) {
+ pr_info("it87: VID is disabled (pins used for GPIO)\n");
+ sio_data->skip_vid = 1;
+ }
}
/* Check if fan3 is there or not */
@@ -1572,7 +1635,7 @@ static int __init it87_find(unsigned short *address,
}
if (reg & (1 << 0))
sio_data->internal |= (1 << 0);
- if (reg & (1 << 1))
+ if ((reg & (1 << 1)) || sio_data->type == it8721)
sio_data->internal |= (1 << 1);
sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
@@ -1650,6 +1713,7 @@ static int __devinit it87_probe(struct platform_device *pdev)
"it8716",
"it8718",
"it8720",
+ "it8721",
};
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
@@ -1686,6 +1750,16 @@ static int __devinit it87_probe(struct platform_device *pdev)
/* Check PWM configuration */
enable_pwm_interface = it87_check_pwm(dev);
+ /* Starting with IT8721F, we handle scaling of internal voltages */
+ if (data->type == it8721) {
+ if (sio_data->internal & (1 << 0))
+ data->in_scaled |= (1 << 3); /* in3 is AVCC */
+ if (sio_data->internal & (1 << 1))
+ data->in_scaled |= (1 << 7); /* in7 is VSB */
+ if (sio_data->internal & (1 << 2))
+ data->in_scaled |= (1 << 8); /* in8 is Vbat */
+ }
+
/* Initialize the IT87 chip */
it87_init_device(pdev);
@@ -2051,7 +2125,7 @@ static struct it87_data *it87_update_device(struct device *dev)
data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE);
/* The 8705 does not have VID capability.
- The 8718 and the 8720 don't use IT87_REG_VID for the
+ The 8718 and later don't use IT87_REG_VID for the
same purpose. */
if (data->type == it8712 || data->type == it8716) {
data->vid = it87_read_value(data, IT87_REG_VID);
@@ -2151,7 +2225,7 @@ static void __exit sm_it87_exit(void)
MODULE_AUTHOR("Chris Gauthron, "
"Jean Delvare <khali@linux-fr.org>");
-MODULE_DESCRIPTION("IT8705F/8712F/8716F/8718F/8720F/8726F, SiS950 driver");
+MODULE_DESCRIPTION("IT8705F/IT871xF/IT872xF hardware monitoring 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);
diff --git a/drivers/hwmon/k8temp.c b/drivers/hwmon/k8temp.c
index 39ead2a4d3c..418496f1302 100644
--- a/drivers/hwmon/k8temp.c
+++ b/drivers/hwmon/k8temp.c
@@ -191,38 +191,31 @@ static int __devinit k8temp_probe(struct pci_dev *pdev,
model = boot_cpu_data.x86_model;
stepping = boot_cpu_data.x86_mask;
- switch (boot_cpu_data.x86) {
- case 0xf:
- /* feature available since SH-C0, exclude older revisions */
- if (((model == 4) && (stepping == 0)) ||
- ((model == 5) && (stepping <= 1))) {
- err = -ENODEV;
- goto exit_free;
- }
-
- /*
- * AMD NPT family 0fh, i.e. RevF and RevG:
- * meaning of SEL_CORE bit is inverted
- */
- if (model >= 0x40) {
- data->swap_core_select = 1;
- dev_warn(&pdev->dev, "Temperature readouts might be "
- "wrong - check erratum #141\n");
- }
-
- if (is_rev_g_desktop(model)) {
- /*
- * RevG desktop CPUs (i.e. no socket S1G1 or
- * ASB1 parts) need additional offset,
- * otherwise reported temperature is below
- * ambient temperature
- */
- data->temp_offset = 21000;
- }
+ /* feature available since SH-C0, exclude older revisions */
+ if (((model == 4) && (stepping == 0)) ||
+ ((model == 5) && (stepping <= 1))) {
+ err = -ENODEV;
+ goto exit_free;
+ }
- break;
+ /*
+ * AMD NPT family 0fh, i.e. RevF and RevG:
+ * meaning of SEL_CORE bit is inverted
+ */
+ if (model >= 0x40) {
+ data->swap_core_select = 1;
+ dev_warn(&pdev->dev, "Temperature readouts might be wrong - "
+ "check erratum #141\n");
}
+ /*
+ * RevG desktop CPUs (i.e. no socket S1G1 or ASB1 parts) need
+ * additional offset, otherwise reported temperature is below
+ * ambient temperature
+ */
+ if (is_rev_g_desktop(model))
+ data->temp_offset = 21000;
+
pci_read_config_byte(pdev, REG_TEMP, &scfg);
scfg &= ~(SEL_PLACE | SEL_CORE); /* Select sensor 0, core0 */
pci_write_config_byte(pdev, REG_TEMP, scfg);
diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
index ab5b87a8167..f36eb80d227 100644
--- a/drivers/hwmon/lm75.c
+++ b/drivers/hwmon/lm75.c
@@ -1,22 +1,22 @@
/*
- lm75.c - Part of lm_sensors, Linux kernel modules for hardware
- monitoring
- Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
-
- 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.
-*/
+ * lm75.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ * Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
+ *
+ * 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>
@@ -103,7 +103,12 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da,
struct i2c_client *client = to_i2c_client(dev);
struct lm75_data *data = i2c_get_clientdata(client);
int nr = attr->index;
- long temp = simple_strtol(buf, NULL, 10);
+ long temp;
+ int error;
+
+ error = strict_strtol(buf, 10, &temp);
+ if (error)
+ return error;
mutex_lock(&data->update_lock);
data->temp[nr] = LM75_TEMP_TO_REG(temp);
@@ -335,9 +340,11 @@ static struct i2c_driver lm75_driver = {
/* register access */
-/* All registers are word-sized, except for the configuration register.
- LM75 uses a high-byte first convention, which is exactly opposite to
- the SMBus standard. */
+/*
+ * All registers are word-sized, except for the configuration register.
+ * LM75 uses a high-byte first convention, which is exactly opposite to
+ * the SMBus standard.
+ */
static int lm75_read_value(struct i2c_client *client, u8 reg)
{
int value;
diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c
index b3841a61559..1e229847f37 100644
--- a/drivers/hwmon/lm85.c
+++ b/drivers/hwmon/lm85.c
@@ -64,9 +64,12 @@ enum chips {
#define LM85_REG_VERSTEP 0x3f
#define ADT7468_REG_CFG5 0x7c
-#define ADT7468_OFF64 0x01
+#define ADT7468_OFF64 (1 << 0)
+#define ADT7468_HFPWM (1 << 1)
#define IS_ADT7468_OFF64(data) \
((data)->type == adt7468 && !((data)->cfg5 & ADT7468_OFF64))
+#define IS_ADT7468_HFPWM(data) \
+ ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_HFPWM))
/* These are the recognized values for the above regs */
#define LM85_COMPANY_NATIONAL 0x01
@@ -567,8 +570,14 @@ static ssize_t show_pwm_freq(struct device *dev,
{
int nr = to_sensor_dev_attr(attr)->index;
struct lm85_data *data = lm85_update_device(dev);
- return sprintf(buf, "%d\n", FREQ_FROM_REG(data->freq_map,
- data->pwm_freq[nr]));
+ int freq;
+
+ if (IS_ADT7468_HFPWM(data))
+ freq = 22500;
+ else
+ freq = FREQ_FROM_REG(data->freq_map, data->pwm_freq[nr]);
+
+ return sprintf(buf, "%d\n", freq);
}
static ssize_t set_pwm_freq(struct device *dev,
@@ -580,10 +589,22 @@ static ssize_t set_pwm_freq(struct device *dev,
long val = simple_strtol(buf, NULL, 10);
mutex_lock(&data->update_lock);
- data->pwm_freq[nr] = FREQ_TO_REG(data->freq_map, val);
- lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
- (data->zone[nr].range << 4)
- | data->pwm_freq[nr]);
+ /* The ADT7468 has a special high-frequency PWM output mode,
+ * where all PWM outputs are driven by a 22.5 kHz clock.
+ * This might confuse the user, but there's not much we can do. */
+ if (data->type == adt7468 && val >= 11300) { /* High freq. mode */
+ data->cfg5 &= ~ADT7468_HFPWM;
+ lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5);
+ } else { /* Low freq. mode */
+ data->pwm_freq[nr] = FREQ_TO_REG(data->freq_map, val);
+ lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
+ (data->zone[nr].range << 4)
+ | data->pwm_freq[nr]);
+ if (data->type == adt7468) {
+ data->cfg5 |= ADT7468_HFPWM;
+ lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5);
+ }
+ }
mutex_unlock(&data->update_lock);
return count;
}
@@ -1259,6 +1280,7 @@ static int lm85_probe(struct i2c_client *client,
switch (data->type) {
case adm1027:
case adt7463:
+ case adt7468:
case emc6d100:
case emc6d102:
data->freq_map = adm1027_freq_map;
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 760ef72eea5..812781c655a 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -28,9 +28,11 @@
* This driver also supports the MAX6657, MAX6658 and MAX6659 sensor
* chips made by Maxim. These chips are similar to the LM86.
* Note that there is no easy way to differentiate between the three
- * variants. The extra address and features of the MAX6659 are not
- * supported by this driver. These chips lack the remote temperature
- * offset feature.
+ * variants. We use the device address to detect MAX6659, which will result
+ * in a detection as max6657 if it is on address 0x4c. The extra address
+ * and features of the MAX6659 are only supported if the chip is configured
+ * explicitly as max6659, or if its address is not 0x4c.
+ * These chips lack the remote temperature offset feature.
*
* This driver also supports the MAX6646, MAX6647, MAX6648, MAX6649 and
* MAX6692 chips made by Maxim. These are again similar to the LM86,
@@ -42,6 +44,11 @@
* chips. The MAX6680 and MAX6681 only differ in the pinout so they can
* be treated identically.
*
+ * This driver also supports the MAX6695 and MAX6696, two other sensor
+ * chips made by Maxim. These are also quite similar to other Maxim
+ * chips, but support three temperature sensors instead of two. MAX6695
+ * and MAX6696 only differ in the pinout so they can be treated identically.
+ *
* This driver also supports the ADT7461 chip from Analog Devices.
* It's supported in both compatibility and extended mode. It is mostly
* compatible with LM90 except for a data format difference for the
@@ -81,11 +88,11 @@
* Addresses to scan
* Address is fully defined internally and cannot be changed except for
* MAX6659, MAX6680 and MAX6681.
- * LM86, LM89, LM90, LM99, ADM1032, ADM1032-1, ADT7461, MAX6649, MAX6657
- * and MAX6658 have address 0x4c.
+ * LM86, LM89, LM90, LM99, ADM1032, ADM1032-1, ADT7461, MAX6649, MAX6657,
+ * MAX6658 and W83L771 have address 0x4c.
* ADM1032-2, ADT7461-2, LM89-1, LM99-1 and MAX6646 have address 0x4d.
* MAX6647 has address 0x4e.
- * MAX6659 can have address 0x4c, 0x4d or 0x4e (unsupported).
+ * MAX6659 can have address 0x4c, 0x4d or 0x4e.
* MAX6680 and MAX6681 can have address 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b,
* 0x4c, 0x4d or 0x4e.
*/
@@ -93,8 +100,8 @@
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,
- w83l771 };
+enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
+ max6646, w83l771, max6696 };
/*
* The LM90 registers
@@ -135,26 +142,30 @@ enum chips { lm90, adm1032, lm99, lm86, max6657, adt7461, max6680, max6646,
#define LM90_REG_R_TCRIT_HYST 0x21
#define LM90_REG_W_TCRIT_HYST 0x21
-/* MAX6646/6647/6649/6657/6658/6659 registers */
+/* MAX6646/6647/6649/6657/6658/6659/6695/6696 registers */
#define MAX6657_REG_R_LOCAL_TEMPL 0x11
+#define MAX6696_REG_R_STATUS2 0x12
+#define MAX6659_REG_R_REMOTE_EMERG 0x16
+#define MAX6659_REG_W_REMOTE_EMERG 0x16
+#define MAX6659_REG_R_LOCAL_EMERG 0x17
+#define MAX6659_REG_W_LOCAL_EMERG 0x17
-/*
- * Device flags
- */
-#define LM90_FLAG_ADT7461_EXT 0x01 /* ADT7461 extended mode */
+#define LM90_DEF_CONVRATE_RVAL 6 /* Def conversion rate register value */
+#define LM90_MAX_CONVRATE_MS 16000 /* Maximum conversion rate in ms */
/*
- * Functions declaration
+ * Device flags
*/
-
-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);
+#define LM90_FLAG_ADT7461_EXT (1 << 0) /* ADT7461 extended mode */
+/* Device features */
+#define LM90_HAVE_OFFSET (1 << 1) /* temperature offset register */
+#define LM90_HAVE_LOCAL_EXT (1 << 2) /* extended local temperature */
+#define LM90_HAVE_REM_LIMIT_EXT (1 << 3) /* extended remote limit */
+#define LM90_HAVE_EMERGENCY (1 << 4) /* 3rd upper (emergency) limit */
+#define LM90_HAVE_EMERGENCY_ALARM (1 << 5)/* emergency alarm */
+#define LM90_HAVE_TEMP3 (1 << 6) /* 3rd temperature sensor */
+#define LM90_HAVE_BROKEN_ALERT (1 << 7) /* Broken alert */
/*
* Driver data (common to all clients)
@@ -172,25 +183,85 @@ static const struct i2c_device_id lm90_id[] = {
{ "max6649", max6646 },
{ "max6657", max6657 },
{ "max6658", max6657 },
- { "max6659", max6657 },
+ { "max6659", max6659 },
{ "max6680", max6680 },
{ "max6681", max6680 },
+ { "max6695", max6696 },
+ { "max6696", max6696 },
{ "w83l771", w83l771 },
{ }
};
MODULE_DEVICE_TABLE(i2c, lm90_id);
-static struct i2c_driver lm90_driver = {
- .class = I2C_CLASS_HWMON,
- .driver = {
- .name = "lm90",
+/*
+ * chip type specific parameters
+ */
+struct lm90_params {
+ u32 flags; /* Capabilities */
+ u16 alert_alarms; /* Which alarm bits trigger ALERT# */
+ /* Upper 8 bits for max6695/96 */
+ u8 max_convrate; /* Maximum conversion rate register value */
+};
+
+static const struct lm90_params lm90_params[] = {
+ [adm1032] = {
+ .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
+ | LM90_HAVE_BROKEN_ALERT,
+ .alert_alarms = 0x7c,
+ .max_convrate = 10,
+ },
+ [adt7461] = {
+ .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
+ | LM90_HAVE_BROKEN_ALERT,
+ .alert_alarms = 0x7c,
+ .max_convrate = 10,
+ },
+ [lm86] = {
+ .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
+ .alert_alarms = 0x7b,
+ .max_convrate = 9,
+ },
+ [lm90] = {
+ .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
+ .alert_alarms = 0x7b,
+ .max_convrate = 9,
+ },
+ [lm99] = {
+ .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
+ .alert_alarms = 0x7b,
+ .max_convrate = 9,
+ },
+ [max6646] = {
+ .flags = LM90_HAVE_LOCAL_EXT,
+ .alert_alarms = 0x7c,
+ .max_convrate = 6,
+ },
+ [max6657] = {
+ .flags = LM90_HAVE_LOCAL_EXT,
+ .alert_alarms = 0x7c,
+ .max_convrate = 8,
+ },
+ [max6659] = {
+ .flags = LM90_HAVE_LOCAL_EXT | LM90_HAVE_EMERGENCY,
+ .alert_alarms = 0x7c,
+ .max_convrate = 8,
+ },
+ [max6680] = {
+ .flags = LM90_HAVE_OFFSET,
+ .alert_alarms = 0x7c,
+ .max_convrate = 7,
+ },
+ [max6696] = {
+ .flags = LM90_HAVE_LOCAL_EXT | LM90_HAVE_EMERGENCY
+ | LM90_HAVE_EMERGENCY_ALARM | LM90_HAVE_TEMP3,
+ .alert_alarms = 0x187c,
+ .max_convrate = 6,
+ },
+ [w83l771] = {
+ .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
+ .alert_alarms = 0x7c,
+ .max_convrate = 8,
},
- .probe = lm90_probe,
- .remove = lm90_remove,
- .alert = lm90_alert,
- .id_table = lm90_id,
- .detect = lm90_detect,
- .address_list = normal_i2c,
};
/*
@@ -203,26 +274,268 @@ struct lm90_data {
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */
int kind;
- int flags;
+ u32 flags;
+
+ int update_interval; /* in milliseconds */
u8 config_orig; /* Original configuration register value */
- u8 alert_alarms; /* Which alarm bits trigger ALERT# */
+ u8 convrate_orig; /* Original conversion rate register value */
+ u16 alert_alarms; /* Which alarm bits trigger ALERT# */
+ /* Upper 8 bits for max6695/96 */
+ u8 max_convrate; /* Maximum conversion rate */
/* registers values */
- s8 temp8[4]; /* 0: local low limit
+ s8 temp8[8]; /* 0: local low limit
1: local high limit
2: local critical limit
- 3: remote critical limit */
- s16 temp11[5]; /* 0: remote input
+ 3: remote critical limit
+ 4: local emergency limit (max6659 and max6695/96)
+ 5: remote emergency limit (max6659 and max6695/96)
+ 6: remote 2 critical limit (max6695/96 only)
+ 7: remote 2 emergency limit (max6695/96 only) */
+ s16 temp11[8]; /* 0: remote input
1: remote low limit
2: remote high limit
- 3: remote offset (except max6646 and max6657)
- 4: local input */
+ 3: remote offset (except max6646, max6657/58/59,
+ and max6695/96)
+ 4: local input
+ 5: remote 2 input (max6695/96 only)
+ 6: remote 2 low limit (max6695/96 only)
+ 7: remote 2 high limit (ma6695/96 only) */
u8 temp_hyst;
- u8 alarms; /* bitvector */
+ u16 alarms; /* bitvector (upper 8 bits for max6695/96) */
};
/*
+ * Support functions
+ */
+
+/*
+ * The ADM1032 supports PEC but not on write byte transactions, so we need
+ * to explicitly ask for a transaction without PEC.
+ */
+static inline s32 adm1032_write_byte(struct i2c_client *client, u8 value)
+{
+ return i2c_smbus_xfer(client->adapter, client->addr,
+ client->flags & ~I2C_CLIENT_PEC,
+ I2C_SMBUS_WRITE, value, I2C_SMBUS_BYTE, NULL);
+}
+
+/*
+ * It is assumed that client->update_lock is held (unless we are in
+ * detection or initialization steps). This matters when PEC is enabled,
+ * because we don't want the address pointer to change between the write
+ * byte and the read byte transactions.
+ */
+static int lm90_read_reg(struct i2c_client *client, u8 reg, u8 *value)
+{
+ int err;
+
+ if (client->flags & I2C_CLIENT_PEC) {
+ err = adm1032_write_byte(client, reg);
+ if (err >= 0)
+ err = i2c_smbus_read_byte(client);
+ } else
+ err = i2c_smbus_read_byte_data(client, reg);
+
+ if (err < 0) {
+ dev_warn(&client->dev, "Register %#02x read failed (%d)\n",
+ reg, err);
+ return err;
+ }
+ *value = err;
+
+ return 0;
+}
+
+static int lm90_read16(struct i2c_client *client, u8 regh, u8 regl, u16 *value)
+{
+ int err;
+ u8 oldh, newh, l;
+
+ /*
+ * There is a trick here. We have to read two registers to have the
+ * sensor temperature, but we have to beware a conversion could occur
+ * inbetween the readings. The datasheet says we should either use
+ * the one-shot conversion register, which we don't want to do
+ * (disables hardware monitoring) or monitor the busy bit, which is
+ * impossible (we can't read the values and monitor that bit at the
+ * exact same time). So the solution used here is to read the high
+ * byte once, then the low byte, then the high byte again. If the new
+ * high byte matches the old one, then we have a valid reading. Else
+ * we have to read the low byte again, and now we believe we have a
+ * correct reading.
+ */
+ if ((err = lm90_read_reg(client, regh, &oldh))
+ || (err = lm90_read_reg(client, regl, &l))
+ || (err = lm90_read_reg(client, regh, &newh)))
+ return err;
+ if (oldh != newh) {
+ err = lm90_read_reg(client, regl, &l);
+ if (err)
+ return err;
+ }
+ *value = (newh << 8) | l;
+
+ return 0;
+}
+
+/*
+ * client->update_lock must be held when calling this function (unless we are
+ * in detection or initialization steps), and while a remote channel other
+ * than channel 0 is selected. Also, calling code must make sure to re-select
+ * external channel 0 before releasing the lock. This is necessary because
+ * various registers have different meanings as a result of selecting a
+ * non-default remote channel.
+ */
+static inline void lm90_select_remote_channel(struct i2c_client *client,
+ struct lm90_data *data,
+ int channel)
+{
+ u8 config;
+
+ if (data->kind == max6696) {
+ lm90_read_reg(client, LM90_REG_R_CONFIG1, &config);
+ config &= ~0x08;
+ if (channel)
+ config |= 0x08;
+ i2c_smbus_write_byte_data(client, LM90_REG_W_CONFIG1,
+ config);
+ }
+}
+
+/*
+ * Set conversion rate.
+ * client->update_lock must be held when calling this function (unless we are
+ * in detection or initialization steps).
+ */
+static void lm90_set_convrate(struct i2c_client *client, struct lm90_data *data,
+ unsigned int interval)
+{
+ int i;
+ unsigned int update_interval;
+
+ /* Shift calculations to avoid rounding errors */
+ interval <<= 6;
+
+ /* find the nearest update rate */
+ for (i = 0, update_interval = LM90_MAX_CONVRATE_MS << 6;
+ i < data->max_convrate; i++, update_interval >>= 1)
+ if (interval >= update_interval * 3 / 4)
+ break;
+
+ i2c_smbus_write_byte_data(client, LM90_REG_W_CONVRATE, i);
+ data->update_interval = DIV_ROUND_CLOSEST(update_interval, 64);
+}
+
+static struct lm90_data *lm90_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm90_data *data = i2c_get_clientdata(client);
+ unsigned long next_update;
+
+ mutex_lock(&data->update_lock);
+
+ next_update = data->last_updated
+ + msecs_to_jiffies(data->update_interval) + 1;
+ if (time_after(jiffies, next_update) || !data->valid) {
+ u8 h, l;
+ u8 alarms;
+
+ dev_dbg(&client->dev, "Updating lm90 data.\n");
+ lm90_read_reg(client, LM90_REG_R_LOCAL_LOW, &data->temp8[0]);
+ lm90_read_reg(client, LM90_REG_R_LOCAL_HIGH, &data->temp8[1]);
+ lm90_read_reg(client, LM90_REG_R_LOCAL_CRIT, &data->temp8[2]);
+ lm90_read_reg(client, LM90_REG_R_REMOTE_CRIT, &data->temp8[3]);
+ lm90_read_reg(client, LM90_REG_R_TCRIT_HYST, &data->temp_hyst);
+
+ if (data->flags & LM90_HAVE_LOCAL_EXT) {
+ lm90_read16(client, LM90_REG_R_LOCAL_TEMP,
+ MAX6657_REG_R_LOCAL_TEMPL,
+ &data->temp11[4]);
+ } else {
+ if (lm90_read_reg(client, LM90_REG_R_LOCAL_TEMP,
+ &h) == 0)
+ data->temp11[4] = h << 8;
+ }
+ lm90_read16(client, LM90_REG_R_REMOTE_TEMPH,
+ LM90_REG_R_REMOTE_TEMPL, &data->temp11[0]);
+
+ if (lm90_read_reg(client, LM90_REG_R_REMOTE_LOWH, &h) == 0) {
+ data->temp11[1] = h << 8;
+ if ((data->flags & LM90_HAVE_REM_LIMIT_EXT)
+ && lm90_read_reg(client, LM90_REG_R_REMOTE_LOWL,
+ &l) == 0)
+ data->temp11[1] |= l;
+ }
+ if (lm90_read_reg(client, LM90_REG_R_REMOTE_HIGHH, &h) == 0) {
+ data->temp11[2] = h << 8;
+ if ((data->flags & LM90_HAVE_REM_LIMIT_EXT)
+ && lm90_read_reg(client, LM90_REG_R_REMOTE_HIGHL,
+ &l) == 0)
+ data->temp11[2] |= l;
+ }
+
+ if (data->flags & LM90_HAVE_OFFSET) {
+ if (lm90_read_reg(client, LM90_REG_R_REMOTE_OFFSH,
+ &h) == 0
+ && lm90_read_reg(client, LM90_REG_R_REMOTE_OFFSL,
+ &l) == 0)
+ data->temp11[3] = (h << 8) | l;
+ }
+ if (data->flags & LM90_HAVE_EMERGENCY) {
+ lm90_read_reg(client, MAX6659_REG_R_LOCAL_EMERG,
+ &data->temp8[4]);
+ lm90_read_reg(client, MAX6659_REG_R_REMOTE_EMERG,
+ &data->temp8[5]);
+ }
+ lm90_read_reg(client, LM90_REG_R_STATUS, &alarms);
+ data->alarms = alarms; /* save as 16 bit value */
+
+ if (data->kind == max6696) {
+ lm90_select_remote_channel(client, data, 1);
+ lm90_read_reg(client, LM90_REG_R_REMOTE_CRIT,
+ &data->temp8[6]);
+ lm90_read_reg(client, MAX6659_REG_R_REMOTE_EMERG,
+ &data->temp8[7]);
+ lm90_read16(client, LM90_REG_R_REMOTE_TEMPH,
+ LM90_REG_R_REMOTE_TEMPL, &data->temp11[5]);
+ if (!lm90_read_reg(client, LM90_REG_R_REMOTE_LOWH, &h))
+ data->temp11[6] = h << 8;
+ if (!lm90_read_reg(client, LM90_REG_R_REMOTE_HIGHH, &h))
+ data->temp11[7] = h << 8;
+ lm90_select_remote_channel(client, data, 0);
+
+ if (!lm90_read_reg(client, MAX6696_REG_R_STATUS2,
+ &alarms))
+ data->alarms |= alarms << 8;
+ }
+
+ /* 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;
+ }
+
+ mutex_unlock(&data->update_lock);
+
+ return data;
+}
+
+/*
* Conversions
* For local temperatures and limits, critical limits and the hysteresis
* value, the LM90 uses signed 8-bit values with LSB = 1 degree Celsius.
@@ -377,18 +690,27 @@ static ssize_t show_temp8(struct device *dev, struct device_attribute *devattr,
static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
- static const u8 reg[4] = {
+ static const u8 reg[8] = {
LM90_REG_W_LOCAL_LOW,
LM90_REG_W_LOCAL_HIGH,
LM90_REG_W_LOCAL_CRIT,
LM90_REG_W_REMOTE_CRIT,
+ MAX6659_REG_W_LOCAL_EMERG,
+ MAX6659_REG_W_REMOTE_EMERG,
+ LM90_REG_W_REMOTE_CRIT,
+ MAX6659_REG_W_REMOTE_EMERG,
};
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct lm90_data *data = i2c_get_clientdata(client);
- long val = simple_strtol(buf, NULL, 10);
int nr = attr->index;
+ long val;
+ int err;
+
+ err = strict_strtol(buf, 10, &val);
+ if (err < 0)
+ return err;
/* +16 degrees offset for temp2 for the LM99 */
if (data->kind == lm99 && attr->index == 3)
@@ -401,7 +723,11 @@ static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr,
data->temp8[nr] = temp_to_u8(val);
else
data->temp8[nr] = temp_to_s8(val);
+
+ lm90_select_remote_channel(client, data, nr >= 6);
i2c_smbus_write_byte_data(client, reg[nr], data->temp8[nr]);
+ lm90_select_remote_channel(client, data, 0);
+
mutex_unlock(&data->update_lock);
return count;
}
@@ -409,7 +735,7 @@ static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr,
static ssize_t show_temp11(struct device *dev, struct device_attribute *devattr,
char *buf)
{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
struct lm90_data *data = lm90_update_device(dev);
int temp;
@@ -430,46 +756,58 @@ static ssize_t show_temp11(struct device *dev, struct device_attribute *devattr,
static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
- static const u8 reg[6] = {
- LM90_REG_W_REMOTE_LOWH,
- LM90_REG_W_REMOTE_LOWL,
- LM90_REG_W_REMOTE_HIGHH,
- LM90_REG_W_REMOTE_HIGHL,
- LM90_REG_W_REMOTE_OFFSH,
- LM90_REG_W_REMOTE_OFFSL,
+ struct {
+ u8 high;
+ u8 low;
+ int channel;
+ } reg[5] = {
+ { LM90_REG_W_REMOTE_LOWH, LM90_REG_W_REMOTE_LOWL, 0 },
+ { LM90_REG_W_REMOTE_HIGHH, LM90_REG_W_REMOTE_HIGHL, 0 },
+ { LM90_REG_W_REMOTE_OFFSH, LM90_REG_W_REMOTE_OFFSL, 0 },
+ { LM90_REG_W_REMOTE_LOWH, LM90_REG_W_REMOTE_LOWL, 1 },
+ { LM90_REG_W_REMOTE_HIGHH, LM90_REG_W_REMOTE_HIGHL, 1 }
};
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct lm90_data *data = i2c_get_clientdata(client);
- long val = simple_strtol(buf, NULL, 10);
- int nr = attr->index;
+ int nr = attr->nr;
+ int index = attr->index;
+ long val;
+ int err;
+
+ err = strict_strtol(buf, 10, &val);
+ if (err < 0)
+ return err;
/* +16 degrees offset for temp2 for the LM99 */
- if (data->kind == lm99 && attr->index <= 2)
+ if (data->kind == lm99 && index <= 2)
val -= 16000;
mutex_lock(&data->update_lock);
if (data->kind == adt7461)
- data->temp11[nr] = temp_to_u16_adt7461(data, val);
- else if (data->kind == max6657 || data->kind == max6680)
- data->temp11[nr] = temp_to_s8(val) << 8;
+ data->temp11[index] = temp_to_u16_adt7461(data, val);
else if (data->kind == max6646)
- data->temp11[nr] = temp_to_u8(val) << 8;
+ data->temp11[index] = temp_to_u8(val) << 8;
+ else if (data->flags & LM90_HAVE_REM_LIMIT_EXT)
+ data->temp11[index] = temp_to_s16(val);
else
- data->temp11[nr] = temp_to_s16(val);
-
- i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2],
- data->temp11[nr] >> 8);
- if (data->kind != max6657 && data->kind != max6680
- && data->kind != max6646)
- i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2 + 1],
- data->temp11[nr] & 0xff);
+ data->temp11[index] = temp_to_s8(val) << 8;
+
+ lm90_select_remote_channel(client, data, reg[nr].channel);
+ i2c_smbus_write_byte_data(client, reg[nr].high,
+ data->temp11[index] >> 8);
+ if (data->flags & LM90_HAVE_REM_LIMIT_EXT)
+ i2c_smbus_write_byte_data(client, reg[nr].low,
+ data->temp11[index] & 0xff);
+ lm90_select_remote_channel(client, data, 0);
+
mutex_unlock(&data->update_lock);
return count;
}
-static ssize_t show_temphyst(struct device *dev, struct device_attribute *devattr,
+static ssize_t show_temphyst(struct device *dev,
+ struct device_attribute *devattr,
char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
@@ -495,9 +833,14 @@ static ssize_t set_temphyst(struct device *dev, struct device_attribute *dummy,
{
struct i2c_client *client = to_i2c_client(dev);
struct lm90_data *data = i2c_get_clientdata(client);
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
int temp;
+ err = strict_strtol(buf, 10, &val);
+ if (err < 0)
+ return err;
+
mutex_lock(&data->update_lock);
if (data->kind == adt7461)
temp = temp_from_u8_adt7461(data, data->temp8[2]);
@@ -530,16 +873,44 @@ static ssize_t show_alarm(struct device *dev, struct device_attribute
return sprintf(buf, "%d\n", (data->alarms >> bitnr) & 1);
}
-static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp11, NULL, 4);
-static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp11, NULL, 0);
+static ssize_t show_update_interval(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct lm90_data *data = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", data->update_interval);
+}
+
+static ssize_t set_update_interval(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm90_data *data = i2c_get_clientdata(client);
+ unsigned long val;
+ int err;
+
+ err = strict_strtoul(buf, 10, &val);
+ if (err)
+ return err;
+
+ mutex_lock(&data->update_lock);
+ lm90_set_convrate(client, data, val);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp11, NULL, 0, 4);
+static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp11, NULL, 0, 0);
static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp8,
set_temp8, 0);
-static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp11,
- set_temp11, 1);
+static SENSOR_DEVICE_ATTR_2(temp2_min, S_IWUSR | S_IRUGO, show_temp11,
+ set_temp11, 0, 1);
static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp8,
set_temp8, 1);
-static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp11,
- set_temp11, 2);
+static SENSOR_DEVICE_ATTR_2(temp2_max, S_IWUSR | S_IRUGO, show_temp11,
+ set_temp11, 1, 2);
static SENSOR_DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp8,
set_temp8, 2);
static SENSOR_DEVICE_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_temp8,
@@ -547,8 +918,8 @@ static SENSOR_DEVICE_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_temp8,
static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temphyst,
set_temphyst, 2);
static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IRUGO, show_temphyst, NULL, 3);
-static SENSOR_DEVICE_ATTR(temp2_offset, S_IWUSR | S_IRUGO, show_temp11,
- set_temp11, 3);
+static SENSOR_DEVICE_ATTR_2(temp2_offset, S_IWUSR | S_IRUGO, show_temp11,
+ set_temp11, 2, 3);
/* Individual alarm files */
static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 0);
@@ -561,6 +932,9 @@ static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6);
/* Raw alarm file for compatibility */
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+static DEVICE_ATTR(update_interval, S_IRUGO | S_IWUSR, show_update_interval,
+ set_update_interval);
+
static struct attribute *lm90_attributes[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp2_input.dev_attr.attr,
@@ -581,6 +955,7 @@ static struct attribute *lm90_attributes[] = {
&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
&dev_attr_alarms.attr,
+ &dev_attr_update_interval.attr,
NULL
};
@@ -588,6 +963,86 @@ static const struct attribute_group lm90_group = {
.attrs = lm90_attributes,
};
+/*
+ * Additional attributes for devices with emergency sensors
+ */
+static SENSOR_DEVICE_ATTR(temp1_emergency, S_IWUSR | S_IRUGO, show_temp8,
+ set_temp8, 4);
+static SENSOR_DEVICE_ATTR(temp2_emergency, S_IWUSR | S_IRUGO, show_temp8,
+ set_temp8, 5);
+static SENSOR_DEVICE_ATTR(temp1_emergency_hyst, S_IRUGO, show_temphyst,
+ NULL, 4);
+static SENSOR_DEVICE_ATTR(temp2_emergency_hyst, S_IRUGO, show_temphyst,
+ NULL, 5);
+
+static struct attribute *lm90_emergency_attributes[] = {
+ &sensor_dev_attr_temp1_emergency.dev_attr.attr,
+ &sensor_dev_attr_temp2_emergency.dev_attr.attr,
+ &sensor_dev_attr_temp1_emergency_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp2_emergency_hyst.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group lm90_emergency_group = {
+ .attrs = lm90_emergency_attributes,
+};
+
+static SENSOR_DEVICE_ATTR(temp1_emergency_alarm, S_IRUGO, show_alarm, NULL, 15);
+static SENSOR_DEVICE_ATTR(temp2_emergency_alarm, S_IRUGO, show_alarm, NULL, 13);
+
+static struct attribute *lm90_emergency_alarm_attributes[] = {
+ &sensor_dev_attr_temp1_emergency_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp2_emergency_alarm.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group lm90_emergency_alarm_group = {
+ .attrs = lm90_emergency_alarm_attributes,
+};
+
+/*
+ * Additional attributes for devices with 3 temperature sensors
+ */
+static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp11, NULL, 0, 5);
+static SENSOR_DEVICE_ATTR_2(temp3_min, S_IWUSR | S_IRUGO, show_temp11,
+ set_temp11, 3, 6);
+static SENSOR_DEVICE_ATTR_2(temp3_max, S_IWUSR | S_IRUGO, show_temp11,
+ set_temp11, 4, 7);
+static SENSOR_DEVICE_ATTR(temp3_crit, S_IWUSR | S_IRUGO, show_temp8,
+ set_temp8, 6);
+static SENSOR_DEVICE_ATTR(temp3_crit_hyst, S_IRUGO, show_temphyst, NULL, 6);
+static SENSOR_DEVICE_ATTR(temp3_emergency, S_IWUSR | S_IRUGO, show_temp8,
+ set_temp8, 7);
+static SENSOR_DEVICE_ATTR(temp3_emergency_hyst, S_IRUGO, show_temphyst,
+ NULL, 7);
+
+static SENSOR_DEVICE_ATTR(temp3_crit_alarm, S_IRUGO, show_alarm, NULL, 9);
+static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 10);
+static SENSOR_DEVICE_ATTR(temp3_min_alarm, S_IRUGO, show_alarm, NULL, 11);
+static SENSOR_DEVICE_ATTR(temp3_max_alarm, S_IRUGO, show_alarm, NULL, 12);
+static SENSOR_DEVICE_ATTR(temp3_emergency_alarm, S_IRUGO, show_alarm, NULL, 14);
+
+static struct attribute *lm90_temp3_attributes[] = {
+ &sensor_dev_attr_temp3_input.dev_attr.attr,
+ &sensor_dev_attr_temp3_min.dev_attr.attr,
+ &sensor_dev_attr_temp3_max.dev_attr.attr,
+ &sensor_dev_attr_temp3_crit.dev_attr.attr,
+ &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp3_emergency.dev_attr.attr,
+ &sensor_dev_attr_temp3_emergency_hyst.dev_attr.attr,
+
+ &sensor_dev_attr_temp3_fault.dev_attr.attr,
+ &sensor_dev_attr_temp3_min_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp3_max_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp3_emergency_alarm.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group lm90_temp3_group = {
+ .attrs = lm90_temp3_attributes,
+};
+
/* pec used for ADM1032 only */
static ssize_t show_pec(struct device *dev, struct device_attribute *dummy,
char *buf)
@@ -600,7 +1055,12 @@ static ssize_t set_pec(struct device *dev, struct device_attribute *dummy,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = strict_strtol(buf, 10, &val);
+ if (err < 0)
+ return err;
switch (val) {
case 0:
@@ -622,40 +1082,6 @@ static DEVICE_ATTR(pec, S_IWUSR | S_IRUGO, show_pec, set_pec);
* Real code
*/
-/* The ADM1032 supports PEC but not on write byte transactions, so we need
- to explicitly ask for a transaction without PEC. */
-static inline s32 adm1032_write_byte(struct i2c_client *client, u8 value)
-{
- return i2c_smbus_xfer(client->adapter, client->addr,
- client->flags & ~I2C_CLIENT_PEC,
- I2C_SMBUS_WRITE, value, I2C_SMBUS_BYTE, NULL);
-}
-
-/* It is assumed that client->update_lock is held (unless we are in
- detection or initialization steps). This matters when PEC is enabled,
- because we don't want the address pointer to change between the write
- byte and the read byte transactions. */
-static int lm90_read_reg(struct i2c_client* client, u8 reg, u8 *value)
-{
- int err;
-
- if (client->flags & I2C_CLIENT_PEC) {
- err = adm1032_write_byte(client, reg);
- if (err >= 0)
- err = i2c_smbus_read_byte(client);
- } else
- err = i2c_smbus_read_byte_data(client, reg);
-
- if (err < 0) {
- dev_warn(&client->dev, "Register %#02x read failed (%d)\n",
- reg, err);
- return err;
- }
- *value = err;
-
- return 0;
-}
-
/* Return 0 if detection is successful, -ENODEV otherwise */
static int lm90_detect(struct i2c_client *new_client,
struct i2c_board_info *info)
@@ -730,6 +1156,23 @@ static int lm90_detect(struct i2c_client *new_client,
}
} else
if (man_id == 0x4D) { /* Maxim */
+ int reg_emerg, reg_emerg2, reg_status2;
+
+ /*
+ * We read MAX6659_REG_R_REMOTE_EMERG twice, and re-read
+ * LM90_REG_R_MAN_ID in between. If MAX6659_REG_R_REMOTE_EMERG
+ * exists, both readings will reflect the same value. Otherwise,
+ * the readings will be different.
+ */
+ if ((reg_emerg = i2c_smbus_read_byte_data(new_client,
+ MAX6659_REG_R_REMOTE_EMERG)) < 0
+ || i2c_smbus_read_byte_data(new_client, LM90_REG_R_MAN_ID) < 0
+ || (reg_emerg2 = i2c_smbus_read_byte_data(new_client,
+ MAX6659_REG_R_REMOTE_EMERG)) < 0
+ || (reg_status2 = i2c_smbus_read_byte_data(new_client,
+ MAX6696_REG_R_STATUS2)) < 0)
+ return -ENODEV;
+
/*
* The MAX6657, MAX6658 and MAX6659 do NOT have a chip_id
* register. Reading from that address will return the last
@@ -737,12 +1180,38 @@ static int lm90_detect(struct i2c_client *new_client,
* register. Likewise, the config1 register seems to lack a
* low nibble, so the value will be those of the previous
* read, so in our case those of the man_id register.
+ * MAX6659 has a third set of upper temperature limit registers.
+ * Those registers also return values on MAX6657 and MAX6658,
+ * thus the only way to detect MAX6659 is by its address.
+ * For this reason it will be mis-detected as MAX6657 if its
+ * address is 0x4C.
*/
if (chip_id == man_id
- && (address == 0x4C || address == 0x4D)
+ && (address == 0x4C || address == 0x4D || address == 0x4E)
&& (reg_config1 & 0x1F) == (man_id & 0x0F)
&& reg_convrate <= 0x09) {
- name = "max6657";
+ if (address == 0x4C)
+ name = "max6657";
+ else
+ name = "max6659";
+ } else
+ /*
+ * Even though MAX6695 and MAX6696 do not have a chip ID
+ * register, reading it returns 0x01. Bit 4 of the config1
+ * register is unused and should return zero when read. Bit 0 of
+ * the status2 register is unused and should return zero when
+ * read.
+ *
+ * MAX6695 and MAX6696 have an additional set of temperature
+ * limit registers. We can detect those chips by checking if
+ * one of those registers exists.
+ */
+ if (chip_id == 0x01
+ && (reg_config1 & 0x10) == 0x00
+ && (reg_status2 & 0x01) == 0x00
+ && reg_emerg == reg_emerg2
+ && reg_convrate <= 0x07) {
+ name = "max6696";
} else
/*
* The chip_id register of the MAX6680 and MAX6681 holds the
@@ -768,10 +1237,23 @@ static int lm90_detect(struct i2c_client *new_client,
} 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";
+ int reg_config2;
+
+ reg_config2 = i2c_smbus_read_byte_data(new_client,
+ LM90_REG_R_CONFIG2);
+ if (reg_config2 < 0)
+ return -ENODEV;
+
+ if ((reg_config1 & 0x2A) == 0x00
+ && (reg_config2 & 0xF8) == 0x00) {
+ if (chip_id == 0x01 /* W83L771W/G */
+ && reg_convrate <= 0x09) {
+ name = "w83l771";
+ } else
+ if ((chip_id & 0xFE) == 0x10 /* W83L771AWG/ASG */
+ && reg_convrate <= 0x08) {
+ name = "w83l771";
+ }
}
}
@@ -787,6 +1269,69 @@ static int lm90_detect(struct i2c_client *new_client,
return 0;
}
+static void lm90_remove_files(struct i2c_client *client, struct lm90_data *data)
+{
+ if (data->flags & LM90_HAVE_TEMP3)
+ sysfs_remove_group(&client->dev.kobj, &lm90_temp3_group);
+ if (data->flags & LM90_HAVE_EMERGENCY_ALARM)
+ sysfs_remove_group(&client->dev.kobj,
+ &lm90_emergency_alarm_group);
+ if (data->flags & LM90_HAVE_EMERGENCY)
+ sysfs_remove_group(&client->dev.kobj,
+ &lm90_emergency_group);
+ if (data->flags & LM90_HAVE_OFFSET)
+ device_remove_file(&client->dev,
+ &sensor_dev_attr_temp2_offset.dev_attr);
+ device_remove_file(&client->dev, &dev_attr_pec);
+ sysfs_remove_group(&client->dev.kobj, &lm90_group);
+}
+
+static void lm90_init_client(struct i2c_client *client)
+{
+ u8 config, convrate;
+ struct lm90_data *data = i2c_get_clientdata(client);
+
+ if (lm90_read_reg(client, LM90_REG_R_CONVRATE, &convrate) < 0) {
+ dev_warn(&client->dev, "Failed to read convrate register!\n");
+ convrate = LM90_DEF_CONVRATE_RVAL;
+ }
+ data->convrate_orig = convrate;
+
+ /*
+ * Start the conversions.
+ */
+ lm90_set_convrate(client, data, 500); /* 500ms; 2Hz conversion rate */
+ if (lm90_read_reg(client, LM90_REG_R_CONFIG1, &config) < 0) {
+ dev_warn(&client->dev, "Initialization failed!\n");
+ return;
+ }
+ data->config_orig = config;
+
+ /* Check Temperature Range Select */
+ if (data->kind == adt7461) {
+ if (config & 0x04)
+ data->flags |= LM90_FLAG_ADT7461_EXT;
+ }
+
+ /*
+ * Put MAX6680/MAX8881 into extended resolution (bit 0x10,
+ * 0.125 degree resolution) and range (0x08, extend range
+ * to -64 degree) mode for the remote temperature sensor.
+ */
+ if (data->kind == max6680)
+ config |= 0x18;
+
+ /*
+ * Select external channel 0 for max6695/96
+ */
+ if (data->kind == max6696)
+ config &= ~0x08;
+
+ config &= 0xBF; /* run */
+ if (config != data->config_orig) /* Only write if changed */
+ i2c_smbus_write_byte_data(client, LM90_REG_W_CONFIG1, config);
+}
+
static int lm90_probe(struct i2c_client *new_client,
const struct i2c_device_id *id)
{
@@ -811,31 +1356,48 @@ static int lm90_probe(struct i2c_client *new_client,
/* 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;
- }
+ data->alert_alarms = lm90_params[data->kind].alert_alarms;
+
+ /* Set chip capabilities */
+ data->flags = lm90_params[data->kind].flags;
+
+ /* Set maximum conversion rate */
+ data->max_convrate = lm90_params[data->kind].max_convrate;
/* Initialize the LM90 chip */
lm90_init_client(new_client);
/* Register sysfs hooks */
- if ((err = sysfs_create_group(&new_client->dev.kobj, &lm90_group)))
+ err = sysfs_create_group(&new_client->dev.kobj, &lm90_group);
+ if (err)
goto exit_free;
if (new_client->flags & I2C_CLIENT_PEC) {
- if ((err = device_create_file(&new_client->dev,
- &dev_attr_pec)))
+ err = device_create_file(&new_client->dev, &dev_attr_pec);
+ if (err)
+ goto exit_remove_files;
+ }
+ if (data->flags & LM90_HAVE_OFFSET) {
+ err = device_create_file(&new_client->dev,
+ &sensor_dev_attr_temp2_offset.dev_attr);
+ if (err)
goto exit_remove_files;
}
- if (data->kind != max6657 && data->kind != max6646) {
- if ((err = device_create_file(&new_client->dev,
- &sensor_dev_attr_temp2_offset.dev_attr)))
+ if (data->flags & LM90_HAVE_EMERGENCY) {
+ err = sysfs_create_group(&new_client->dev.kobj,
+ &lm90_emergency_group);
+ if (err)
+ goto exit_remove_files;
+ }
+ if (data->flags & LM90_HAVE_EMERGENCY_ALARM) {
+ err = sysfs_create_group(&new_client->dev.kobj,
+ &lm90_emergency_alarm_group);
+ if (err)
+ goto exit_remove_files;
+ }
+ if (data->flags & LM90_HAVE_TEMP3) {
+ err = sysfs_create_group(&new_client->dev.kobj,
+ &lm90_temp3_group);
+ if (err)
goto exit_remove_files;
}
@@ -848,62 +1410,23 @@ static int lm90_probe(struct i2c_client *new_client,
return 0;
exit_remove_files:
- sysfs_remove_group(&new_client->dev.kobj, &lm90_group);
- device_remove_file(&new_client->dev, &dev_attr_pec);
+ lm90_remove_files(new_client, data);
exit_free:
kfree(data);
exit:
return err;
}
-static void lm90_init_client(struct i2c_client *client)
-{
- u8 config;
- struct lm90_data *data = i2c_get_clientdata(client);
-
- /*
- * Start the conversions.
- */
- i2c_smbus_write_byte_data(client, LM90_REG_W_CONVRATE,
- 5); /* 2 Hz */
- if (lm90_read_reg(client, LM90_REG_R_CONFIG1, &config) < 0) {
- dev_warn(&client->dev, "Initialization failed!\n");
- return;
- }
- data->config_orig = config;
-
- /* Check Temperature Range Select */
- if (data->kind == adt7461) {
- if (config & 0x04)
- data->flags |= LM90_FLAG_ADT7461_EXT;
- }
-
- /*
- * Put MAX6680/MAX8881 into extended resolution (bit 0x10,
- * 0.125 degree resolution) and range (0x08, extend range
- * to -64 degree) mode for the remote temperature sensor.
- */
- if (data->kind == max6680) {
- config |= 0x18;
- }
-
- config &= 0xBF; /* run */
- if (config != data->config_orig) /* Only write if changed */
- i2c_smbus_write_byte_data(client, LM90_REG_W_CONFIG1, config);
-}
-
static int lm90_remove(struct i2c_client *client)
{
struct lm90_data *data = i2c_get_clientdata(client);
hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&client->dev.kobj, &lm90_group);
- device_remove_file(&client->dev, &dev_attr_pec);
- if (data->kind != max6657 && data->kind != max6646)
- device_remove_file(&client->dev,
- &sensor_dev_attr_temp2_offset.dev_attr);
+ lm90_remove_files(client, data);
/* Restore initial configuration */
+ i2c_smbus_write_byte_data(client, LM90_REG_W_CONVRATE,
+ data->convrate_orig);
i2c_smbus_write_byte_data(client, LM90_REG_W_CONFIG1,
data->config_orig);
@@ -914,10 +1437,14 @@ static int lm90_remove(struct i2c_client *client)
static void lm90_alert(struct i2c_client *client, unsigned int flag)
{
struct lm90_data *data = i2c_get_clientdata(client);
- u8 config, alarms;
+ u8 config, alarms, alarms2 = 0;
lm90_read_reg(client, LM90_REG_R_STATUS, &alarms);
- if ((alarms & 0x7f) == 0) {
+
+ if (data->kind == max6696)
+ lm90_read_reg(client, MAX6696_REG_R_STATUS2, &alarms2);
+
+ if ((alarms & 0x7f) == 0 && (alarms2 & 0xfe) == 0) {
dev_info(&client->dev, "Everything OK\n");
} else {
if (alarms & 0x61)
@@ -930,10 +1457,14 @@ static void lm90_alert(struct i2c_client *client, unsigned int flag)
dev_warn(&client->dev,
"temp%d diode open, please check!\n", 2);
+ if (alarms2 & 0x18)
+ dev_warn(&client->dev,
+ "temp%d out of range, please check!\n", 3);
+
/* 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)
+ if ((data->flags & LM90_HAVE_BROKEN_ALERT)
&& (alarms & data->alert_alarms)) {
dev_dbg(&client->dev, "Disabling ALERT#\n");
lm90_read_reg(client, LM90_REG_R_CONFIG1, &config);
@@ -943,117 +1474,18 @@ static void lm90_alert(struct i2c_client *client, unsigned int flag)
}
}
-static int lm90_read16(struct i2c_client *client, u8 regh, u8 regl, u16 *value)
-{
- int err;
- u8 oldh, newh, l;
-
- /*
- * There is a trick here. We have to read two registers to have the
- * sensor temperature, but we have to beware a conversion could occur
- * inbetween the readings. The datasheet says we should either use
- * the one-shot conversion register, which we don't want to do
- * (disables hardware monitoring) or monitor the busy bit, which is
- * impossible (we can't read the values and monitor that bit at the
- * exact same time). So the solution used here is to read the high
- * byte once, then the low byte, then the high byte again. If the new
- * high byte matches the old one, then we have a valid reading. Else
- * we have to read the low byte again, and now we believe we have a
- * correct reading.
- */
- if ((err = lm90_read_reg(client, regh, &oldh))
- || (err = lm90_read_reg(client, regl, &l))
- || (err = lm90_read_reg(client, regh, &newh)))
- return err;
- if (oldh != newh) {
- err = lm90_read_reg(client, regl, &l);
- if (err)
- return err;
- }
- *value = (newh << 8) | l;
-
- return 0;
-}
-
-static struct lm90_data *lm90_update_device(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct lm90_data *data = i2c_get_clientdata(client);
-
- mutex_lock(&data->update_lock);
-
- if (time_after(jiffies, data->last_updated + HZ / 2 + HZ / 10)
- || !data->valid) {
- u8 h, l;
-
- dev_dbg(&client->dev, "Updating lm90 data.\n");
- lm90_read_reg(client, LM90_REG_R_LOCAL_LOW, &data->temp8[0]);
- lm90_read_reg(client, LM90_REG_R_LOCAL_HIGH, &data->temp8[1]);
- lm90_read_reg(client, LM90_REG_R_LOCAL_CRIT, &data->temp8[2]);
- lm90_read_reg(client, LM90_REG_R_REMOTE_CRIT, &data->temp8[3]);
- lm90_read_reg(client, LM90_REG_R_TCRIT_HYST, &data->temp_hyst);
-
- if (data->kind == max6657 || data->kind == max6646) {
- lm90_read16(client, LM90_REG_R_LOCAL_TEMP,
- MAX6657_REG_R_LOCAL_TEMPL,
- &data->temp11[4]);
- } else {
- if (lm90_read_reg(client, LM90_REG_R_LOCAL_TEMP,
- &h) == 0)
- data->temp11[4] = h << 8;
- }
- lm90_read16(client, LM90_REG_R_REMOTE_TEMPH,
- LM90_REG_R_REMOTE_TEMPL, &data->temp11[0]);
-
- if (lm90_read_reg(client, LM90_REG_R_REMOTE_LOWH, &h) == 0) {
- data->temp11[1] = h << 8;
- if (data->kind != max6657 && data->kind != max6680
- && data->kind != max6646
- && lm90_read_reg(client, LM90_REG_R_REMOTE_LOWL,
- &l) == 0)
- data->temp11[1] |= l;
- }
- if (lm90_read_reg(client, LM90_REG_R_REMOTE_HIGHH, &h) == 0) {
- data->temp11[2] = h << 8;
- if (data->kind != max6657 && data->kind != max6680
- && data->kind != max6646
- && lm90_read_reg(client, LM90_REG_R_REMOTE_HIGHL,
- &l) == 0)
- data->temp11[2] |= l;
- }
-
- if (data->kind != max6657 && data->kind != max6646) {
- if (lm90_read_reg(client, LM90_REG_R_REMOTE_OFFSH,
- &h) == 0
- && lm90_read_reg(client, LM90_REG_R_REMOTE_OFFSL,
- &l) == 0)
- data->temp11[3] = (h << 8) | l;
- }
- 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;
- }
-
- mutex_unlock(&data->update_lock);
-
- return data;
-}
+static struct i2c_driver lm90_driver = {
+ .class = I2C_CLASS_HWMON,
+ .driver = {
+ .name = "lm90",
+ },
+ .probe = lm90_probe,
+ .remove = lm90_remove,
+ .alert = lm90_alert,
+ .id_table = lm90_id,
+ .detect = lm90_detect,
+ .address_list = normal_i2c,
+};
static int __init sensors_lm90_init(void)
{
diff --git a/drivers/hwmon/pcf8591.c b/drivers/hwmon/pcf8591.c
index d4478794985..dc7259d6981 100644
--- a/drivers/hwmon/pcf8591.c
+++ b/drivers/hwmon/pcf8591.c
@@ -23,10 +23,8 @@
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/mutex.h>
-
-/* Addresses to scan */
-static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c,
- 0x4d, 0x4e, 0x4f, I2C_CLIENT_END };
+#include <linux/err.h>
+#include <linux/hwmon.h>
/* Insmod parameters */
@@ -71,6 +69,7 @@ MODULE_PARM_DESC(input_mode,
#define REG_TO_SIGNED(reg) (((reg) & 0x80)?((reg) - 256):(reg))
struct pcf8591_data {
+ struct device *hwmon_dev;
struct mutex update_lock;
u8 control;
@@ -167,24 +166,6 @@ static const struct attribute_group pcf8591_attr_group_opt = {
* Real code
*/
-/* Return 0 if detection is successful, -ENODEV otherwise */
-static int pcf8591_detect(struct i2c_client *client,
- struct i2c_board_info *info)
-{
- struct i2c_adapter *adapter = client->adapter;
-
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE
- | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
- return -ENODEV;
-
- /* Now, we would do the remaining detection. But the PCF8591 is plainly
- impossible to detect! Stupid chip. */
-
- strlcpy(info->type, "pcf8591", I2C_NAME_SIZE);
-
- return 0;
-}
-
static int pcf8591_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -221,6 +202,12 @@ static int pcf8591_probe(struct i2c_client *client,
goto exit_sysfs_remove;
}
+ data->hwmon_dev = hwmon_device_register(&client->dev);
+ if (IS_ERR(data->hwmon_dev)) {
+ err = PTR_ERR(data->hwmon_dev);
+ goto exit_sysfs_remove;
+ }
+
return 0;
exit_sysfs_remove:
@@ -234,6 +221,9 @@ exit:
static int pcf8591_remove(struct i2c_client *client)
{
+ struct pcf8591_data *data = i2c_get_clientdata(client);
+
+ hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group_opt);
sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group);
kfree(i2c_get_clientdata(client));
@@ -295,10 +285,6 @@ static struct i2c_driver pcf8591_driver = {
.probe = pcf8591_probe,
.remove = pcf8591_remove,
.id_table = pcf8591_id,
-
- .class = I2C_CLASS_HWMON, /* Nearest choice */
- .detect = pcf8591_detect,
- .address_list = normal_i2c,
};
static int __init pcf8591_init(void)
diff --git a/drivers/hwmon/s3c-hwmon.c b/drivers/hwmon/s3c-hwmon.c
index 3f3f9a47acf..05248f2d758 100644
--- a/drivers/hwmon/s3c-hwmon.c
+++ b/drivers/hwmon/s3c-hwmon.c
@@ -51,7 +51,7 @@ struct s3c_hwmon_attr {
* @attr: The holders for the channel attributes.
*/
struct s3c_hwmon {
- struct semaphore lock;
+ struct mutex lock;
struct s3c_adc_client *client;
struct device *hwmon_dev;
@@ -73,14 +73,14 @@ static int s3c_hwmon_read_ch(struct device *dev,
{
int ret;
- ret = down_interruptible(&hwmon->lock);
+ ret = mutex_lock_interruptible(&hwmon->lock);
if (ret < 0)
return ret;
dev_dbg(dev, "reading channel %d\n", channel);
ret = s3c_adc_read(hwmon->client, channel);
- up(&hwmon->lock);
+ mutex_unlock(&hwmon->lock);
return ret;
}
@@ -296,7 +296,7 @@ static int __devinit s3c_hwmon_probe(struct platform_device *dev)
platform_set_drvdata(dev, hwmon);
- init_MUTEX(&hwmon->lock);
+ mutex_init(&hwmon->lock);
/* Register with the core ADC driver. */
diff --git a/drivers/hwmon/tmp421.c b/drivers/hwmon/tmp421.c
index 6b4165c1209..0517a8f09d3 100644
--- a/drivers/hwmon/tmp421.c
+++ b/drivers/hwmon/tmp421.c
@@ -36,8 +36,8 @@
#include <linux/sysfs.h>
/* Addresses to scan */
-static unsigned short normal_i2c[] = { 0x2a, 0x4c, 0x4d, 0x4e, 0x4f,
- I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = { 0x2a, 0x4c, 0x4d, 0x4e, 0x4f,
+ I2C_CLIENT_END };
enum chips { tmp421, tmp422, tmp423 };
diff --git a/drivers/hwmon/w83795.c b/drivers/hwmon/w83795.c
new file mode 100644
index 00000000000..1d840aa8378
--- /dev/null
+++ b/drivers/hwmon/w83795.c
@@ -0,0 +1,2121 @@
+/*
+ * w83795.c - Linux kernel driver for hardware monitoring
+ * Copyright (C) 2008 Nuvoton Technology Corp.
+ * Wei Song
+ * Copyright (C) 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 - version 2.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA.
+ *
+ * Supports following chips:
+ *
+ * Chip #vin #fanin #pwm #temp #dts wchipid vendid i2c ISA
+ * w83795g 21 14 8 6 8 0x79 0x5ca3 yes no
+ * w83795adg 18 14 2 6 8 0x79 0x5ca3 yes no
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.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>
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = {
+ 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END
+};
+
+
+static int reset;
+module_param(reset, bool, 0);
+MODULE_PARM_DESC(reset, "Set to 1 to reset chip, not recommended");
+
+
+#define W83795_REG_BANKSEL 0x00
+#define W83795_REG_VENDORID 0xfd
+#define W83795_REG_CHIPID 0xfe
+#define W83795_REG_DEVICEID 0xfb
+#define W83795_REG_DEVICEID_A 0xff
+
+#define W83795_REG_I2C_ADDR 0xfc
+#define W83795_REG_CONFIG 0x01
+#define W83795_REG_CONFIG_CONFIG48 0x04
+#define W83795_REG_CONFIG_START 0x01
+
+/* Multi-Function Pin Ctrl Registers */
+#define W83795_REG_VOLT_CTRL1 0x02
+#define W83795_REG_VOLT_CTRL2 0x03
+#define W83795_REG_TEMP_CTRL1 0x04
+#define W83795_REG_TEMP_CTRL2 0x05
+#define W83795_REG_FANIN_CTRL1 0x06
+#define W83795_REG_FANIN_CTRL2 0x07
+#define W83795_REG_VMIGB_CTRL 0x08
+
+#define TEMP_READ 0
+#define TEMP_CRIT 1
+#define TEMP_CRIT_HYST 2
+#define TEMP_WARN 3
+#define TEMP_WARN_HYST 4
+/* only crit and crit_hyst affect real-time alarm status
+ * current crit crit_hyst warn warn_hyst */
+static const u16 W83795_REG_TEMP[][5] = {
+ {0x21, 0x96, 0x97, 0x98, 0x99}, /* TD1/TR1 */
+ {0x22, 0x9a, 0x9b, 0x9c, 0x9d}, /* TD2/TR2 */
+ {0x23, 0x9e, 0x9f, 0xa0, 0xa1}, /* TD3/TR3 */
+ {0x24, 0xa2, 0xa3, 0xa4, 0xa5}, /* TD4/TR4 */
+ {0x1f, 0xa6, 0xa7, 0xa8, 0xa9}, /* TR5 */
+ {0x20, 0xaa, 0xab, 0xac, 0xad}, /* TR6 */
+};
+
+#define IN_READ 0
+#define IN_MAX 1
+#define IN_LOW 2
+static const u16 W83795_REG_IN[][3] = {
+ /* Current, HL, LL */
+ {0x10, 0x70, 0x71}, /* VSEN1 */
+ {0x11, 0x72, 0x73}, /* VSEN2 */
+ {0x12, 0x74, 0x75}, /* VSEN3 */
+ {0x13, 0x76, 0x77}, /* VSEN4 */
+ {0x14, 0x78, 0x79}, /* VSEN5 */
+ {0x15, 0x7a, 0x7b}, /* VSEN6 */
+ {0x16, 0x7c, 0x7d}, /* VSEN7 */
+ {0x17, 0x7e, 0x7f}, /* VSEN8 */
+ {0x18, 0x80, 0x81}, /* VSEN9 */
+ {0x19, 0x82, 0x83}, /* VSEN10 */
+ {0x1A, 0x84, 0x85}, /* VSEN11 */
+ {0x1B, 0x86, 0x87}, /* VTT */
+ {0x1C, 0x88, 0x89}, /* 3VDD */
+ {0x1D, 0x8a, 0x8b}, /* 3VSB */
+ {0x1E, 0x8c, 0x8d}, /* VBAT */
+ {0x1F, 0xa6, 0xa7}, /* VSEN12 */
+ {0x20, 0xaa, 0xab}, /* VSEN13 */
+ {0x21, 0x96, 0x97}, /* VSEN14 */
+ {0x22, 0x9a, 0x9b}, /* VSEN15 */
+ {0x23, 0x9e, 0x9f}, /* VSEN16 */
+ {0x24, 0xa2, 0xa3}, /* VSEN17 */
+};
+#define W83795_REG_VRLSB 0x3C
+
+static const u8 W83795_REG_IN_HL_LSB[] = {
+ 0x8e, /* VSEN1-4 */
+ 0x90, /* VSEN5-8 */
+ 0x92, /* VSEN9-11 */
+ 0x94, /* VTT, 3VDD, 3VSB, 3VBAT */
+ 0xa8, /* VSEN12 */
+ 0xac, /* VSEN13 */
+ 0x98, /* VSEN14 */
+ 0x9c, /* VSEN15 */
+ 0xa0, /* VSEN16 */
+ 0xa4, /* VSEN17 */
+};
+
+#define IN_LSB_REG(index, type) \
+ (((type) == 1) ? W83795_REG_IN_HL_LSB[(index)] \
+ : (W83795_REG_IN_HL_LSB[(index)] + 1))
+
+#define IN_LSB_SHIFT 0
+#define IN_LSB_IDX 1
+static const u8 IN_LSB_SHIFT_IDX[][2] = {
+ /* High/Low LSB shift, LSB No. */
+ {0x00, 0x00}, /* VSEN1 */
+ {0x02, 0x00}, /* VSEN2 */
+ {0x04, 0x00}, /* VSEN3 */
+ {0x06, 0x00}, /* VSEN4 */
+ {0x00, 0x01}, /* VSEN5 */
+ {0x02, 0x01}, /* VSEN6 */
+ {0x04, 0x01}, /* VSEN7 */
+ {0x06, 0x01}, /* VSEN8 */
+ {0x00, 0x02}, /* VSEN9 */
+ {0x02, 0x02}, /* VSEN10 */
+ {0x04, 0x02}, /* VSEN11 */
+ {0x00, 0x03}, /* VTT */
+ {0x02, 0x03}, /* 3VDD */
+ {0x04, 0x03}, /* 3VSB */
+ {0x06, 0x03}, /* VBAT */
+ {0x06, 0x04}, /* VSEN12 */
+ {0x06, 0x05}, /* VSEN13 */
+ {0x06, 0x06}, /* VSEN14 */
+ {0x06, 0x07}, /* VSEN15 */
+ {0x06, 0x08}, /* VSEN16 */
+ {0x06, 0x09}, /* VSEN17 */
+};
+
+
+#define W83795_REG_FAN(index) (0x2E + (index))
+#define W83795_REG_FAN_MIN_HL(index) (0xB6 + (index))
+#define W83795_REG_FAN_MIN_LSB(index) (0xC4 + (index) / 2)
+#define W83795_REG_FAN_MIN_LSB_SHIFT(index) \
+ (((index) & 1) ? 4 : 0)
+
+#define W83795_REG_VID_CTRL 0x6A
+
+#define W83795_REG_ALARM(index) (0x41 + (index))
+#define W83795_REG_BEEP(index) (0x50 + (index))
+
+#define W83795_REG_CLR_CHASSIS 0x4D
+
+
+#define W83795_REG_FCMS1 0x201
+#define W83795_REG_FCMS2 0x208
+#define W83795_REG_TFMR(index) (0x202 + (index))
+#define W83795_REG_FOMC 0x20F
+
+#define W83795_REG_TSS(index) (0x209 + (index))
+
+#define PWM_OUTPUT 0
+#define PWM_FREQ 1
+#define PWM_START 2
+#define PWM_NONSTOP 3
+#define PWM_STOP_TIME 4
+#define W83795_REG_PWM(index, nr) (0x210 + (nr) * 8 + (index))
+
+#define W83795_REG_FTSH(index) (0x240 + (index) * 2)
+#define W83795_REG_FTSL(index) (0x241 + (index) * 2)
+#define W83795_REG_TFTS 0x250
+
+#define TEMP_PWM_TTTI 0
+#define TEMP_PWM_CTFS 1
+#define TEMP_PWM_HCT 2
+#define TEMP_PWM_HOT 3
+#define W83795_REG_TTTI(index) (0x260 + (index))
+#define W83795_REG_CTFS(index) (0x268 + (index))
+#define W83795_REG_HT(index) (0x270 + (index))
+
+#define SF4_TEMP 0
+#define SF4_PWM 1
+#define W83795_REG_SF4_TEMP(temp_num, index) \
+ (0x280 + 0x10 * (temp_num) + (index))
+#define W83795_REG_SF4_PWM(temp_num, index) \
+ (0x288 + 0x10 * (temp_num) + (index))
+
+#define W83795_REG_DTSC 0x301
+#define W83795_REG_DTSE 0x302
+#define W83795_REG_DTS(index) (0x26 + (index))
+#define W83795_REG_PECI_TBASE(index) (0x320 + (index))
+
+#define DTS_CRIT 0
+#define DTS_CRIT_HYST 1
+#define DTS_WARN 2
+#define DTS_WARN_HYST 3
+#define W83795_REG_DTS_EXT(index) (0xB2 + (index))
+
+#define SETUP_PWM_DEFAULT 0
+#define SETUP_PWM_UPTIME 1
+#define SETUP_PWM_DOWNTIME 2
+#define W83795_REG_SETUP_PWM(index) (0x20C + (index))
+
+static inline u16 in_from_reg(u8 index, u16 val)
+{
+ /* 3VDD, 3VSB and VBAT: 6 mV/bit; other inputs: 2 mV/bit */
+ if (index >= 12 && index <= 14)
+ return val * 6;
+ else
+ return val * 2;
+}
+
+static inline u16 in_to_reg(u8 index, u16 val)
+{
+ if (index >= 12 && index <= 14)
+ return val / 6;
+ else
+ return val / 2;
+}
+
+static inline unsigned long fan_from_reg(u16 val)
+{
+ if ((val == 0xfff) || (val == 0))
+ return 0;
+ return 1350000UL / val;
+}
+
+static inline u16 fan_to_reg(long rpm)
+{
+ if (rpm <= 0)
+ return 0x0fff;
+ return SENSORS_LIMIT((1350000 + (rpm >> 1)) / rpm, 1, 0xffe);
+}
+
+static inline unsigned long time_from_reg(u8 reg)
+{
+ return reg * 100;
+}
+
+static inline u8 time_to_reg(unsigned long val)
+{
+ return SENSORS_LIMIT((val + 50) / 100, 0, 0xff);
+}
+
+static inline long temp_from_reg(s8 reg)
+{
+ return reg * 1000;
+}
+
+static inline s8 temp_to_reg(long val, s8 min, s8 max)
+{
+ return SENSORS_LIMIT(val / 1000, min, max);
+}
+
+static const u16 pwm_freq_cksel0[16] = {
+ 1024, 512, 341, 256, 205, 171, 146, 128,
+ 85, 64, 32, 16, 8, 4, 2, 1
+};
+
+static unsigned int pwm_freq_from_reg(u8 reg, u16 clkin)
+{
+ unsigned long base_clock;
+
+ if (reg & 0x80) {
+ base_clock = clkin * 1000 / ((clkin == 48000) ? 384 : 256);
+ return base_clock / ((reg & 0x7f) + 1);
+ } else
+ return pwm_freq_cksel0[reg & 0x0f];
+}
+
+static u8 pwm_freq_to_reg(unsigned long val, u16 clkin)
+{
+ unsigned long base_clock;
+ u8 reg0, reg1;
+ unsigned long best0, best1;
+
+ /* Best fit for cksel = 0 */
+ for (reg0 = 0; reg0 < ARRAY_SIZE(pwm_freq_cksel0) - 1; reg0++) {
+ if (val > (pwm_freq_cksel0[reg0] +
+ pwm_freq_cksel0[reg0 + 1]) / 2)
+ break;
+ }
+ if (val < 375) /* cksel = 1 can't beat this */
+ return reg0;
+ best0 = pwm_freq_cksel0[reg0];
+
+ /* Best fit for cksel = 1 */
+ base_clock = clkin * 1000 / ((clkin == 48000) ? 384 : 256);
+ reg1 = SENSORS_LIMIT(DIV_ROUND_CLOSEST(base_clock, val), 1, 128);
+ best1 = base_clock / reg1;
+ reg1 = 0x80 | (reg1 - 1);
+
+ /* Choose the closest one */
+ if (abs(val - best0) > abs(val - best1))
+ return reg1;
+ else
+ return reg0;
+}
+
+enum chip_types {w83795g, w83795adg};
+
+struct w83795_data {
+ struct device *hwmon_dev;
+ struct mutex update_lock;
+ unsigned long last_updated; /* In jiffies */
+ enum chip_types chip_type;
+
+ u8 bank;
+
+ u32 has_in; /* Enable monitor VIN or not */
+ u8 has_dyn_in; /* Only in2-0 can have this */
+ u16 in[21][3]; /* Register value, read/high/low */
+ u8 in_lsb[10][3]; /* LSB Register value, high/low */
+ u8 has_gain; /* has gain: in17-20 * 8 */
+
+ u16 has_fan; /* Enable fan14-1 or not */
+ u16 fan[14]; /* Register value combine */
+ u16 fan_min[14]; /* Register value combine */
+
+ u8 has_temp; /* Enable monitor temp6-1 or not */
+ s8 temp[6][5]; /* current, crit, crit_hyst, warn, warn_hyst */
+ u8 temp_read_vrlsb[6];
+ u8 temp_mode; /* Bit vector, 0 = TR, 1 = TD */
+ u8 temp_src[3]; /* Register value */
+
+ u8 enable_dts; /* Enable PECI and SB-TSI,
+ * bit 0: =1 enable, =0 disable,
+ * bit 1: =1 AMD SB-TSI, =0 Intel PECI */
+ u8 has_dts; /* Enable monitor DTS temp */
+ s8 dts[8]; /* Register value */
+ u8 dts_read_vrlsb[8]; /* Register value */
+ s8 dts_ext[4]; /* Register value */
+
+ u8 has_pwm; /* 795g supports 8 pwm, 795adg only supports 2,
+ * no config register, only affected by chip
+ * type */
+ u8 pwm[8][5]; /* Register value, output, freq, start,
+ * non stop, stop time */
+ u16 clkin; /* CLKIN frequency in kHz */
+ u8 pwm_fcms[2]; /* Register value */
+ u8 pwm_tfmr[6]; /* Register value */
+ u8 pwm_fomc; /* Register value */
+
+ u16 target_speed[8]; /* Register value, target speed for speed
+ * cruise */
+ u8 tol_speed; /* tolerance of target speed */
+ u8 pwm_temp[6][4]; /* TTTI, CTFS, HCT, HOT */
+ u8 sf4_reg[6][2][7]; /* 6 temp, temp/dcpwm, 7 registers */
+
+ u8 setup_pwm[3]; /* Register value */
+
+ u8 alarms[6]; /* Register value */
+ u8 beeps[6]; /* Register value */
+
+ char valid;
+ char valid_limits;
+ char valid_pwm_config;
+};
+
+/*
+ * Hardware access
+ * We assume that nobdody can change the bank outside the driver.
+ */
+
+/* Must be called with data->update_lock held, except during initialization */
+static int w83795_set_bank(struct i2c_client *client, u8 bank)
+{
+ struct w83795_data *data = i2c_get_clientdata(client);
+ int err;
+
+ /* If the same bank is already set, nothing to do */
+ if ((data->bank & 0x07) == bank)
+ return 0;
+
+ /* Change to new bank, preserve all other bits */
+ bank |= data->bank & ~0x07;
+ err = i2c_smbus_write_byte_data(client, W83795_REG_BANKSEL, bank);
+ if (err < 0) {
+ dev_err(&client->dev,
+ "Failed to set bank to %d, err %d\n",
+ (int)bank, err);
+ return err;
+ }
+ data->bank = bank;
+
+ return 0;
+}
+
+/* Must be called with data->update_lock held, except during initialization */
+static u8 w83795_read(struct i2c_client *client, u16 reg)
+{
+ int err;
+
+ err = w83795_set_bank(client, reg >> 8);
+ if (err < 0)
+ return 0x00; /* Arbitrary */
+
+ err = i2c_smbus_read_byte_data(client, reg & 0xff);
+ if (err < 0) {
+ dev_err(&client->dev,
+ "Failed to read from register 0x%03x, err %d\n",
+ (int)reg, err);
+ return 0x00; /* Arbitrary */
+ }
+ return err;
+}
+
+/* Must be called with data->update_lock held, except during initialization */
+static int w83795_write(struct i2c_client *client, u16 reg, u8 value)
+{
+ int err;
+
+ err = w83795_set_bank(client, reg >> 8);
+ if (err < 0)
+ return err;
+
+ err = i2c_smbus_write_byte_data(client, reg & 0xff, value);
+ if (err < 0)
+ dev_err(&client->dev,
+ "Failed to write to register 0x%03x, err %d\n",
+ (int)reg, err);
+ return err;
+}
+
+static void w83795_update_limits(struct i2c_client *client)
+{
+ struct w83795_data *data = i2c_get_clientdata(client);
+ int i, limit;
+
+ /* Read the voltage limits */
+ for (i = 0; i < ARRAY_SIZE(data->in); i++) {
+ if (!(data->has_in & (1 << i)))
+ continue;
+ data->in[i][IN_MAX] =
+ w83795_read(client, W83795_REG_IN[i][IN_MAX]);
+ data->in[i][IN_LOW] =
+ w83795_read(client, W83795_REG_IN[i][IN_LOW]);
+ }
+ for (i = 0; i < ARRAY_SIZE(data->in_lsb); i++) {
+ if ((i == 2 && data->chip_type == w83795adg) ||
+ (i >= 4 && !(data->has_in & (1 << (i + 11)))))
+ continue;
+ data->in_lsb[i][IN_MAX] =
+ w83795_read(client, IN_LSB_REG(i, IN_MAX));
+ data->in_lsb[i][IN_LOW] =
+ w83795_read(client, IN_LSB_REG(i, IN_LOW));
+ }
+
+ /* Read the fan limits */
+ for (i = 0; i < ARRAY_SIZE(data->fan); i++) {
+ u8 lsb;
+
+ /* Each register contains LSB for 2 fans, but we want to
+ * read it only once to save time */
+ if ((i & 1) == 0 && (data->has_fan & (3 << i)))
+ lsb = w83795_read(client, W83795_REG_FAN_MIN_LSB(i));
+
+ if (!(data->has_fan & (1 << i)))
+ continue;
+ data->fan_min[i] =
+ w83795_read(client, W83795_REG_FAN_MIN_HL(i)) << 4;
+ data->fan_min[i] |=
+ (lsb >> W83795_REG_FAN_MIN_LSB_SHIFT(i)) & 0x0F;
+ }
+
+ /* Read the temperature limits */
+ for (i = 0; i < ARRAY_SIZE(data->temp); i++) {
+ if (!(data->has_temp & (1 << i)))
+ continue;
+ for (limit = TEMP_CRIT; limit <= TEMP_WARN_HYST; limit++)
+ data->temp[i][limit] =
+ w83795_read(client, W83795_REG_TEMP[i][limit]);
+ }
+
+ /* Read the DTS limits */
+ if (data->enable_dts) {
+ for (limit = DTS_CRIT; limit <= DTS_WARN_HYST; limit++)
+ data->dts_ext[limit] =
+ w83795_read(client, W83795_REG_DTS_EXT(limit));
+ }
+
+ /* Read beep settings */
+ for (i = 0; i < ARRAY_SIZE(data->beeps); i++)
+ data->beeps[i] = w83795_read(client, W83795_REG_BEEP(i));
+
+ data->valid_limits = 1;
+}
+
+static struct w83795_data *w83795_update_pwm_config(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83795_data *data = i2c_get_clientdata(client);
+ int i, tmp;
+
+ mutex_lock(&data->update_lock);
+
+ if (data->valid_pwm_config)
+ goto END;
+
+ /* Read temperature source selection */
+ for (i = 0; i < ARRAY_SIZE(data->temp_src); i++)
+ data->temp_src[i] = w83795_read(client, W83795_REG_TSS(i));
+
+ /* Read automatic fan speed control settings */
+ data->pwm_fcms[0] = w83795_read(client, W83795_REG_FCMS1);
+ data->pwm_fcms[1] = w83795_read(client, W83795_REG_FCMS2);
+ for (i = 0; i < ARRAY_SIZE(data->pwm_tfmr); i++)
+ data->pwm_tfmr[i] = w83795_read(client, W83795_REG_TFMR(i));
+ data->pwm_fomc = w83795_read(client, W83795_REG_FOMC);
+ for (i = 0; i < data->has_pwm; i++) {
+ for (tmp = PWM_FREQ; tmp <= PWM_STOP_TIME; tmp++)
+ data->pwm[i][tmp] =
+ w83795_read(client, W83795_REG_PWM(i, tmp));
+ }
+ for (i = 0; i < ARRAY_SIZE(data->target_speed); i++) {
+ data->target_speed[i] =
+ w83795_read(client, W83795_REG_FTSH(i)) << 4;
+ data->target_speed[i] |=
+ w83795_read(client, W83795_REG_FTSL(i)) >> 4;
+ }
+ data->tol_speed = w83795_read(client, W83795_REG_TFTS) & 0x3f;
+
+ for (i = 0; i < ARRAY_SIZE(data->pwm_temp); i++) {
+ data->pwm_temp[i][TEMP_PWM_TTTI] =
+ w83795_read(client, W83795_REG_TTTI(i)) & 0x7f;
+ data->pwm_temp[i][TEMP_PWM_CTFS] =
+ w83795_read(client, W83795_REG_CTFS(i));
+ tmp = w83795_read(client, W83795_REG_HT(i));
+ data->pwm_temp[i][TEMP_PWM_HCT] = tmp >> 4;
+ data->pwm_temp[i][TEMP_PWM_HOT] = tmp & 0x0f;
+ }
+
+ /* Read SmartFanIV trip points */
+ for (i = 0; i < ARRAY_SIZE(data->sf4_reg); i++) {
+ for (tmp = 0; tmp < 7; tmp++) {
+ data->sf4_reg[i][SF4_TEMP][tmp] =
+ w83795_read(client,
+ W83795_REG_SF4_TEMP(i, tmp));
+ data->sf4_reg[i][SF4_PWM][tmp] =
+ w83795_read(client, W83795_REG_SF4_PWM(i, tmp));
+ }
+ }
+
+ /* Read setup PWM */
+ for (i = 0; i < ARRAY_SIZE(data->setup_pwm); i++)
+ data->setup_pwm[i] =
+ w83795_read(client, W83795_REG_SETUP_PWM(i));
+
+ data->valid_pwm_config = 1;
+
+END:
+ mutex_unlock(&data->update_lock);
+ return data;
+}
+
+static struct w83795_data *w83795_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83795_data *data = i2c_get_clientdata(client);
+ u16 tmp;
+ int i;
+
+ mutex_lock(&data->update_lock);
+
+ if (!data->valid_limits)
+ w83795_update_limits(client);
+
+ if (!(time_after(jiffies, data->last_updated + HZ * 2)
+ || !data->valid))
+ goto END;
+
+ /* Update the voltages value */
+ for (i = 0; i < ARRAY_SIZE(data->in); i++) {
+ if (!(data->has_in & (1 << i)))
+ continue;
+ tmp = w83795_read(client, W83795_REG_IN[i][IN_READ]) << 2;
+ tmp |= w83795_read(client, W83795_REG_VRLSB) >> 6;
+ data->in[i][IN_READ] = tmp;
+ }
+
+ /* in0-2 can have dynamic limits (W83795G only) */
+ if (data->has_dyn_in) {
+ u8 lsb_max = w83795_read(client, IN_LSB_REG(0, IN_MAX));
+ u8 lsb_low = w83795_read(client, IN_LSB_REG(0, IN_LOW));
+
+ for (i = 0; i < 3; i++) {
+ if (!(data->has_dyn_in & (1 << i)))
+ continue;
+ data->in[i][IN_MAX] =
+ w83795_read(client, W83795_REG_IN[i][IN_MAX]);
+ data->in[i][IN_LOW] =
+ w83795_read(client, W83795_REG_IN[i][IN_LOW]);
+ data->in_lsb[i][IN_MAX] = (lsb_max >> (2 * i)) & 0x03;
+ data->in_lsb[i][IN_LOW] = (lsb_low >> (2 * i)) & 0x03;
+ }
+ }
+
+ /* Update fan */
+ for (i = 0; i < ARRAY_SIZE(data->fan); i++) {
+ if (!(data->has_fan & (1 << i)))
+ continue;
+ data->fan[i] = w83795_read(client, W83795_REG_FAN(i)) << 4;
+ data->fan[i] |= w83795_read(client, W83795_REG_VRLSB) >> 4;
+ }
+
+ /* Update temperature */
+ for (i = 0; i < ARRAY_SIZE(data->temp); i++) {
+ data->temp[i][TEMP_READ] =
+ w83795_read(client, W83795_REG_TEMP[i][TEMP_READ]);
+ data->temp_read_vrlsb[i] =
+ w83795_read(client, W83795_REG_VRLSB);
+ }
+
+ /* Update dts temperature */
+ if (data->enable_dts) {
+ for (i = 0; i < ARRAY_SIZE(data->dts); i++) {
+ if (!(data->has_dts & (1 << i)))
+ continue;
+ data->dts[i] =
+ w83795_read(client, W83795_REG_DTS(i));
+ data->dts_read_vrlsb[i] =
+ w83795_read(client, W83795_REG_VRLSB);
+ }
+ }
+
+ /* Update pwm output */
+ for (i = 0; i < data->has_pwm; i++) {
+ data->pwm[i][PWM_OUTPUT] =
+ w83795_read(client, W83795_REG_PWM(i, PWM_OUTPUT));
+ }
+
+ /* update alarm */
+ for (i = 0; i < ARRAY_SIZE(data->alarms); i++)
+ data->alarms[i] = w83795_read(client, W83795_REG_ALARM(i));
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+
+END:
+ mutex_unlock(&data->update_lock);
+ return data;
+}
+
+/*
+ * Sysfs attributes
+ */
+
+#define ALARM_STATUS 0
+#define BEEP_ENABLE 1
+static ssize_t
+show_alarm_beep(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct w83795_data *data = w83795_update_device(dev);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index >> 3;
+ int bit = sensor_attr->index & 0x07;
+ u8 val;
+
+ if (nr == ALARM_STATUS)
+ val = (data->alarms[index] >> bit) & 1;
+ else /* BEEP_ENABLE */
+ val = (data->beeps[index] >> bit) & 1;
+
+ return sprintf(buf, "%u\n", val);
+}
+
+static ssize_t
+store_beep(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83795_data *data = i2c_get_clientdata(client);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int index = sensor_attr->index >> 3;
+ int shift = sensor_attr->index & 0x07;
+ u8 beep_bit = 1 << shift;
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
+ if (val != 0 && val != 1)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ data->beeps[index] = w83795_read(client, W83795_REG_BEEP(index));
+ data->beeps[index] &= ~beep_bit;
+ data->beeps[index] |= val << shift;
+ w83795_write(client, W83795_REG_BEEP(index), data->beeps[index]);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+/* Write 0 to clear chassis alarm */
+static ssize_t
+store_chassis_clear(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83795_data *data = i2c_get_clientdata(client);
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) < 0 || val != 0)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ val = w83795_read(client, W83795_REG_CLR_CHASSIS);
+ val |= 0x80;
+ w83795_write(client, W83795_REG_CLR_CHASSIS, val);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+#define FAN_INPUT 0
+#define FAN_MIN 1
+static ssize_t
+show_fan(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+ struct w83795_data *data = w83795_update_device(dev);
+ u16 val;
+
+ if (nr == FAN_INPUT)
+ val = data->fan[index] & 0x0fff;
+ else
+ val = data->fan_min[index] & 0x0fff;
+
+ return sprintf(buf, "%lu\n", fan_from_reg(val));
+}
+
+static ssize_t
+store_fan_min(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int index = sensor_attr->index;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83795_data *data = i2c_get_clientdata(client);
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val))
+ return -EINVAL;
+ val = fan_to_reg(val);
+
+ mutex_lock(&data->update_lock);
+ data->fan_min[index] = val;
+ w83795_write(client, W83795_REG_FAN_MIN_HL(index), (val >> 4) & 0xff);
+ val &= 0x0f;
+ if (index & 1) {
+ val <<= 4;
+ val |= w83795_read(client, W83795_REG_FAN_MIN_LSB(index))
+ & 0x0f;
+ } else {
+ val |= w83795_read(client, W83795_REG_FAN_MIN_LSB(index))
+ & 0xf0;
+ }
+ w83795_write(client, W83795_REG_FAN_MIN_LSB(index), val & 0xff);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static ssize_t
+show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct w83795_data *data;
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+ unsigned int val;
+
+ data = nr == PWM_OUTPUT ? w83795_update_device(dev)
+ : w83795_update_pwm_config(dev);
+
+ switch (nr) {
+ case PWM_STOP_TIME:
+ val = time_from_reg(data->pwm[index][nr]);
+ break;
+ case PWM_FREQ:
+ val = pwm_freq_from_reg(data->pwm[index][nr], data->clkin);
+ break;
+ default:
+ val = data->pwm[index][nr];
+ break;
+ }
+
+ return sprintf(buf, "%u\n", val);
+}
+
+static ssize_t
+store_pwm(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83795_data *data = i2c_get_clientdata(client);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ switch (nr) {
+ case PWM_STOP_TIME:
+ val = time_to_reg(val);
+ break;
+ case PWM_FREQ:
+ val = pwm_freq_to_reg(val, data->clkin);
+ break;
+ default:
+ val = SENSORS_LIMIT(val, 0, 0xff);
+ break;
+ }
+ w83795_write(client, W83795_REG_PWM(index, nr), val);
+ data->pwm[index][nr] = val;
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static ssize_t
+show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ struct w83795_data *data = w83795_update_pwm_config(dev);
+ int index = sensor_attr->index;
+ u8 tmp;
+
+ if (1 == (data->pwm_fcms[0] & (1 << index))) {
+ tmp = 2;
+ goto out;
+ }
+ for (tmp = 0; tmp < 6; tmp++) {
+ if (data->pwm_tfmr[tmp] & (1 << index)) {
+ tmp = 3;
+ goto out;
+ }
+ }
+ if (data->pwm_fomc & (1 << index))
+ tmp = 0;
+ else
+ tmp = 1;
+
+out:
+ return sprintf(buf, "%u\n", tmp);
+}
+
+static ssize_t
+store_pwm_enable(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83795_data *data = w83795_update_pwm_config(dev);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int index = sensor_attr->index;
+ unsigned long val;
+ int i;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
+ if (val > 2)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ switch (val) {
+ case 0:
+ case 1:
+ data->pwm_fcms[0] &= ~(1 << index);
+ w83795_write(client, W83795_REG_FCMS1, data->pwm_fcms[0]);
+ for (i = 0; i < 6; i++) {
+ data->pwm_tfmr[i] &= ~(1 << index);
+ w83795_write(client, W83795_REG_TFMR(i),
+ data->pwm_tfmr[i]);
+ }
+ data->pwm_fomc |= 1 << index;
+ data->pwm_fomc ^= val << index;
+ w83795_write(client, W83795_REG_FOMC, data->pwm_fomc);
+ break;
+ case 2:
+ data->pwm_fcms[0] |= (1 << index);
+ w83795_write(client, W83795_REG_FCMS1, data->pwm_fcms[0]);
+ break;
+ }
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static ssize_t
+show_temp_src(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ struct w83795_data *data = w83795_update_pwm_config(dev);
+ int index = sensor_attr->index;
+ u8 val = index / 2;
+ u8 tmp = data->temp_src[val];
+
+ if (index & 1)
+ val = 4;
+ else
+ val = 0;
+ tmp >>= val;
+ tmp &= 0x0f;
+
+ return sprintf(buf, "%u\n", tmp);
+}
+
+static ssize_t
+store_temp_src(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83795_data *data = w83795_update_pwm_config(dev);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int index = sensor_attr->index;
+ unsigned long tmp;
+ u8 val = index / 2;
+
+ if (strict_strtoul(buf, 10, &tmp) < 0)
+ return -EINVAL;
+ tmp = SENSORS_LIMIT(tmp, 0, 15);
+
+ mutex_lock(&data->update_lock);
+ if (index & 1) {
+ tmp <<= 4;
+ data->temp_src[val] &= 0x0f;
+ } else {
+ data->temp_src[val] &= 0xf0;
+ }
+ data->temp_src[val] |= tmp;
+ w83795_write(client, W83795_REG_TSS(val), data->temp_src[val]);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+#define TEMP_PWM_ENABLE 0
+#define TEMP_PWM_FAN_MAP 1
+static ssize_t
+show_temp_pwm_enable(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct w83795_data *data = w83795_update_pwm_config(dev);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+ u8 tmp = 0xff;
+
+ switch (nr) {
+ case TEMP_PWM_ENABLE:
+ tmp = (data->pwm_fcms[1] >> index) & 1;
+ if (tmp)
+ tmp = 4;
+ else
+ tmp = 3;
+ break;
+ case TEMP_PWM_FAN_MAP:
+ tmp = data->pwm_tfmr[index];
+ break;
+ }
+
+ return sprintf(buf, "%u\n", tmp);
+}
+
+static ssize_t
+store_temp_pwm_enable(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83795_data *data = w83795_update_pwm_config(dev);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+ unsigned long tmp;
+
+ if (strict_strtoul(buf, 10, &tmp) < 0)
+ return -EINVAL;
+
+ switch (nr) {
+ case TEMP_PWM_ENABLE:
+ if (tmp != 3 && tmp != 4)
+ return -EINVAL;
+ tmp -= 3;
+ mutex_lock(&data->update_lock);
+ data->pwm_fcms[1] &= ~(1 << index);
+ data->pwm_fcms[1] |= tmp << index;
+ w83795_write(client, W83795_REG_FCMS2, data->pwm_fcms[1]);
+ mutex_unlock(&data->update_lock);
+ break;
+ case TEMP_PWM_FAN_MAP:
+ mutex_lock(&data->update_lock);
+ tmp = SENSORS_LIMIT(tmp, 0, 0xff);
+ w83795_write(client, W83795_REG_TFMR(index), tmp);
+ data->pwm_tfmr[index] = tmp;
+ mutex_unlock(&data->update_lock);
+ break;
+ }
+ return count;
+}
+
+#define FANIN_TARGET 0
+#define FANIN_TOL 1
+static ssize_t
+show_fanin(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct w83795_data *data = w83795_update_pwm_config(dev);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+ u16 tmp = 0;
+
+ switch (nr) {
+ case FANIN_TARGET:
+ tmp = fan_from_reg(data->target_speed[index]);
+ break;
+ case FANIN_TOL:
+ tmp = data->tol_speed;
+ break;
+ }
+
+ return sprintf(buf, "%u\n", tmp);
+}
+
+static ssize_t
+store_fanin(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83795_data *data = i2c_get_clientdata(client);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ switch (nr) {
+ case FANIN_TARGET:
+ val = fan_to_reg(SENSORS_LIMIT(val, 0, 0xfff));
+ w83795_write(client, W83795_REG_FTSH(index), val >> 4);
+ w83795_write(client, W83795_REG_FTSL(index), (val << 4) & 0xf0);
+ data->target_speed[index] = val;
+ break;
+ case FANIN_TOL:
+ val = SENSORS_LIMIT(val, 0, 0x3f);
+ w83795_write(client, W83795_REG_TFTS, val);
+ data->tol_speed = val;
+ break;
+ }
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+
+static ssize_t
+show_temp_pwm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct w83795_data *data = w83795_update_pwm_config(dev);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+ long tmp = temp_from_reg(data->pwm_temp[index][nr]);
+
+ return sprintf(buf, "%ld\n", tmp);
+}
+
+static ssize_t
+store_temp_pwm(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83795_data *data = i2c_get_clientdata(client);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+ unsigned long val;
+ u8 tmp;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
+ val /= 1000;
+
+ mutex_lock(&data->update_lock);
+ switch (nr) {
+ case TEMP_PWM_TTTI:
+ val = SENSORS_LIMIT(val, 0, 0x7f);
+ w83795_write(client, W83795_REG_TTTI(index), val);
+ break;
+ case TEMP_PWM_CTFS:
+ val = SENSORS_LIMIT(val, 0, 0x7f);
+ w83795_write(client, W83795_REG_CTFS(index), val);
+ break;
+ case TEMP_PWM_HCT:
+ val = SENSORS_LIMIT(val, 0, 0x0f);
+ tmp = w83795_read(client, W83795_REG_HT(index));
+ tmp &= 0x0f;
+ tmp |= (val << 4) & 0xf0;
+ w83795_write(client, W83795_REG_HT(index), tmp);
+ break;
+ case TEMP_PWM_HOT:
+ val = SENSORS_LIMIT(val, 0, 0x0f);
+ tmp = w83795_read(client, W83795_REG_HT(index));
+ tmp &= 0xf0;
+ tmp |= val & 0x0f;
+ w83795_write(client, W83795_REG_HT(index), tmp);
+ break;
+ }
+ data->pwm_temp[index][nr] = val;
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static ssize_t
+show_sf4_pwm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct w83795_data *data = w83795_update_pwm_config(dev);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+
+ return sprintf(buf, "%u\n", data->sf4_reg[index][SF4_PWM][nr]);
+}
+
+static ssize_t
+store_sf4_pwm(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83795_data *data = i2c_get_clientdata(client);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ w83795_write(client, W83795_REG_SF4_PWM(index, nr), val);
+ data->sf4_reg[index][SF4_PWM][nr] = val;
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static ssize_t
+show_sf4_temp(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct w83795_data *data = w83795_update_pwm_config(dev);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+
+ return sprintf(buf, "%u\n",
+ (data->sf4_reg[index][SF4_TEMP][nr]) * 1000);
+}
+
+static ssize_t
+store_sf4_temp(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83795_data *data = i2c_get_clientdata(client);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
+ val /= 1000;
+
+ mutex_lock(&data->update_lock);
+ w83795_write(client, W83795_REG_SF4_TEMP(index, nr), val);
+ data->sf4_reg[index][SF4_TEMP][nr] = val;
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+
+static ssize_t
+show_temp(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+ struct w83795_data *data = w83795_update_device(dev);
+ long temp = temp_from_reg(data->temp[index][nr]);
+
+ if (nr == TEMP_READ)
+ temp += (data->temp_read_vrlsb[index] >> 6) * 250;
+ return sprintf(buf, "%ld\n", temp);
+}
+
+static ssize_t
+store_temp(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83795_data *data = i2c_get_clientdata(client);
+ long tmp;
+
+ if (strict_strtol(buf, 10, &tmp) < 0)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ data->temp[index][nr] = temp_to_reg(tmp, -128, 127);
+ w83795_write(client, W83795_REG_TEMP[index][nr], data->temp[index][nr]);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+
+static ssize_t
+show_dts_mode(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct w83795_data *data = dev_get_drvdata(dev);
+ int tmp;
+
+ if (data->enable_dts & 2)
+ tmp = 5;
+ else
+ tmp = 6;
+
+ return sprintf(buf, "%d\n", tmp);
+}
+
+static ssize_t
+show_dts(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int index = sensor_attr->index;
+ struct w83795_data *data = w83795_update_device(dev);
+ long temp = temp_from_reg(data->dts[index]);
+
+ temp += (data->dts_read_vrlsb[index] >> 6) * 250;
+ return sprintf(buf, "%ld\n", temp);
+}
+
+static ssize_t
+show_dts_ext(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ struct w83795_data *data = dev_get_drvdata(dev);
+ long temp = temp_from_reg(data->dts_ext[nr]);
+
+ return sprintf(buf, "%ld\n", temp);
+}
+
+static ssize_t
+store_dts_ext(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83795_data *data = i2c_get_clientdata(client);
+ long tmp;
+
+ if (strict_strtol(buf, 10, &tmp) < 0)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ data->dts_ext[nr] = temp_to_reg(tmp, -128, 127);
+ w83795_write(client, W83795_REG_DTS_EXT(nr), data->dts_ext[nr]);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+
+static ssize_t
+show_temp_mode(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct w83795_data *data = dev_get_drvdata(dev);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int index = sensor_attr->index;
+ int tmp;
+
+ if (data->temp_mode & (1 << index))
+ tmp = 3; /* Thermal diode */
+ else
+ tmp = 4; /* Thermistor */
+
+ return sprintf(buf, "%d\n", tmp);
+}
+
+/* Only for temp1-4 (temp5-6 can only be thermistor) */
+static ssize_t
+store_temp_mode(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83795_data *data = i2c_get_clientdata(client);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int index = sensor_attr->index;
+ int reg_shift;
+ unsigned long val;
+ u8 tmp;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
+ if ((val != 4) && (val != 3))
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ if (val == 3) {
+ /* Thermal diode */
+ val = 0x01;
+ data->temp_mode |= 1 << index;
+ } else if (val == 4) {
+ /* Thermistor */
+ val = 0x03;
+ data->temp_mode &= ~(1 << index);
+ }
+
+ reg_shift = 2 * index;
+ tmp = w83795_read(client, W83795_REG_TEMP_CTRL2);
+ tmp &= ~(0x03 << reg_shift);
+ tmp |= val << reg_shift;
+ w83795_write(client, W83795_REG_TEMP_CTRL2, tmp);
+
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+
+/* show/store VIN */
+static ssize_t
+show_in(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+ struct w83795_data *data = w83795_update_device(dev);
+ u16 val = data->in[index][nr];
+ u8 lsb_idx;
+
+ switch (nr) {
+ case IN_READ:
+ /* calculate this value again by sensors as sensors3.conf */
+ if ((index >= 17) &&
+ !((data->has_gain >> (index - 17)) & 1))
+ val *= 8;
+ break;
+ case IN_MAX:
+ case IN_LOW:
+ lsb_idx = IN_LSB_SHIFT_IDX[index][IN_LSB_IDX];
+ val <<= 2;
+ val |= (data->in_lsb[lsb_idx][nr] >>
+ IN_LSB_SHIFT_IDX[index][IN_LSB_SHIFT]) & 0x03;
+ if ((index >= 17) &&
+ !((data->has_gain >> (index - 17)) & 1))
+ val *= 8;
+ break;
+ }
+ val = in_from_reg(index, val);
+
+ return sprintf(buf, "%d\n", val);
+}
+
+static ssize_t
+store_in(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83795_data *data = i2c_get_clientdata(client);
+ unsigned long val;
+ u8 tmp;
+ u8 lsb_idx;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
+ val = in_to_reg(index, val);
+
+ if ((index >= 17) &&
+ !((data->has_gain >> (index - 17)) & 1))
+ val /= 8;
+ val = SENSORS_LIMIT(val, 0, 0x3FF);
+ mutex_lock(&data->update_lock);
+
+ lsb_idx = IN_LSB_SHIFT_IDX[index][IN_LSB_IDX];
+ tmp = w83795_read(client, IN_LSB_REG(lsb_idx, nr));
+ tmp &= ~(0x03 << IN_LSB_SHIFT_IDX[index][IN_LSB_SHIFT]);
+ tmp |= (val & 0x03) << IN_LSB_SHIFT_IDX[index][IN_LSB_SHIFT];
+ w83795_write(client, IN_LSB_REG(lsb_idx, nr), tmp);
+ data->in_lsb[lsb_idx][nr] = tmp;
+
+ tmp = (val >> 2) & 0xff;
+ w83795_write(client, W83795_REG_IN[index][nr], tmp);
+ data->in[index][nr] = tmp;
+
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+
+#ifdef CONFIG_SENSORS_W83795_FANCTRL
+static ssize_t
+show_sf_setup(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ struct w83795_data *data = w83795_update_pwm_config(dev);
+ u16 val = data->setup_pwm[nr];
+
+ switch (nr) {
+ case SETUP_PWM_UPTIME:
+ case SETUP_PWM_DOWNTIME:
+ val = time_from_reg(val);
+ break;
+ }
+
+ return sprintf(buf, "%d\n", val);
+}
+
+static ssize_t
+store_sf_setup(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83795_data *data = i2c_get_clientdata(client);
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
+
+ switch (nr) {
+ case SETUP_PWM_DEFAULT:
+ val = SENSORS_LIMIT(val, 0, 0xff);
+ break;
+ case SETUP_PWM_UPTIME:
+ case SETUP_PWM_DOWNTIME:
+ val = time_to_reg(val);
+ if (val == 0)
+ return -EINVAL;
+ break;
+ }
+
+ mutex_lock(&data->update_lock);
+ data->setup_pwm[nr] = val;
+ w83795_write(client, W83795_REG_SETUP_PWM(nr), val);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+#endif
+
+
+#define NOT_USED -1
+
+/* Don't change the attribute order, _max and _min are accessed by index
+ * somewhere else in the code */
+#define SENSOR_ATTR_IN(index) { \
+ SENSOR_ATTR_2(in##index##_input, S_IRUGO, show_in, NULL, \
+ IN_READ, index), \
+ SENSOR_ATTR_2(in##index##_max, S_IRUGO | S_IWUSR, show_in, \
+ store_in, IN_MAX, index), \
+ SENSOR_ATTR_2(in##index##_min, S_IRUGO | S_IWUSR, show_in, \
+ store_in, IN_LOW, index), \
+ SENSOR_ATTR_2(in##index##_alarm, S_IRUGO, show_alarm_beep, \
+ NULL, ALARM_STATUS, index + ((index > 14) ? 1 : 0)), \
+ SENSOR_ATTR_2(in##index##_beep, S_IWUSR | S_IRUGO, \
+ show_alarm_beep, store_beep, BEEP_ENABLE, \
+ index + ((index > 14) ? 1 : 0)) }
+
+#define SENSOR_ATTR_FAN(index) { \
+ SENSOR_ATTR_2(fan##index##_input, S_IRUGO, show_fan, \
+ NULL, FAN_INPUT, index - 1), \
+ SENSOR_ATTR_2(fan##index##_min, S_IWUSR | S_IRUGO, \
+ show_fan, store_fan_min, FAN_MIN, index - 1), \
+ SENSOR_ATTR_2(fan##index##_alarm, S_IRUGO, show_alarm_beep, \
+ NULL, ALARM_STATUS, index + 31), \
+ SENSOR_ATTR_2(fan##index##_beep, S_IWUSR | S_IRUGO, \
+ show_alarm_beep, store_beep, BEEP_ENABLE, index + 31) }
+
+#define SENSOR_ATTR_PWM(index) { \
+ SENSOR_ATTR_2(pwm##index, S_IWUSR | S_IRUGO, show_pwm, \
+ store_pwm, PWM_OUTPUT, index - 1), \
+ SENSOR_ATTR_2(pwm##index##_nonstop, S_IWUSR | S_IRUGO, \
+ show_pwm, store_pwm, PWM_NONSTOP, index - 1), \
+ SENSOR_ATTR_2(pwm##index##_start, S_IWUSR | S_IRUGO, \
+ show_pwm, store_pwm, PWM_START, index - 1), \
+ SENSOR_ATTR_2(pwm##index##_stop_time, S_IWUSR | S_IRUGO, \
+ show_pwm, store_pwm, PWM_STOP_TIME, index - 1), \
+ SENSOR_ATTR_2(pwm##index##_freq, S_IWUSR | S_IRUGO, \
+ show_pwm, store_pwm, PWM_FREQ, index - 1), \
+ SENSOR_ATTR_2(pwm##index##_enable, S_IWUSR | S_IRUGO, \
+ show_pwm_enable, store_pwm_enable, NOT_USED, index - 1), \
+ SENSOR_ATTR_2(fan##index##_target, S_IWUSR | S_IRUGO, \
+ show_fanin, store_fanin, FANIN_TARGET, index - 1) }
+
+#define SENSOR_ATTR_DTS(index) { \
+ SENSOR_ATTR_2(temp##index##_type, S_IRUGO , \
+ show_dts_mode, NULL, NOT_USED, index - 7), \
+ SENSOR_ATTR_2(temp##index##_input, S_IRUGO, show_dts, \
+ NULL, NOT_USED, index - 7), \
+ SENSOR_ATTR_2(temp##index##_crit, S_IRUGO | S_IWUSR, show_dts_ext, \
+ store_dts_ext, DTS_CRIT, NOT_USED), \
+ SENSOR_ATTR_2(temp##index##_crit_hyst, S_IRUGO | S_IWUSR, \
+ show_dts_ext, store_dts_ext, DTS_CRIT_HYST, NOT_USED), \
+ SENSOR_ATTR_2(temp##index##_max, S_IRUGO | S_IWUSR, show_dts_ext, \
+ store_dts_ext, DTS_WARN, NOT_USED), \
+ SENSOR_ATTR_2(temp##index##_max_hyst, S_IRUGO | S_IWUSR, \
+ show_dts_ext, store_dts_ext, DTS_WARN_HYST, NOT_USED), \
+ SENSOR_ATTR_2(temp##index##_alarm, S_IRUGO, \
+ show_alarm_beep, NULL, ALARM_STATUS, index + 17), \
+ SENSOR_ATTR_2(temp##index##_beep, S_IWUSR | S_IRUGO, \
+ show_alarm_beep, store_beep, BEEP_ENABLE, index + 17) }
+
+#define SENSOR_ATTR_TEMP(index) { \
+ SENSOR_ATTR_2(temp##index##_type, S_IRUGO | (index < 4 ? S_IWUSR : 0), \
+ show_temp_mode, store_temp_mode, NOT_USED, index - 1), \
+ SENSOR_ATTR_2(temp##index##_input, S_IRUGO, show_temp, \
+ NULL, TEMP_READ, index - 1), \
+ SENSOR_ATTR_2(temp##index##_crit, S_IRUGO | S_IWUSR, show_temp, \
+ store_temp, TEMP_CRIT, index - 1), \
+ SENSOR_ATTR_2(temp##index##_crit_hyst, S_IRUGO | S_IWUSR, \
+ show_temp, store_temp, TEMP_CRIT_HYST, index - 1), \
+ SENSOR_ATTR_2(temp##index##_max, S_IRUGO | S_IWUSR, show_temp, \
+ store_temp, TEMP_WARN, index - 1), \
+ SENSOR_ATTR_2(temp##index##_max_hyst, S_IRUGO | S_IWUSR, \
+ show_temp, store_temp, TEMP_WARN_HYST, index - 1), \
+ SENSOR_ATTR_2(temp##index##_alarm, S_IRUGO, \
+ show_alarm_beep, NULL, ALARM_STATUS, \
+ index + (index > 4 ? 11 : 17)), \
+ SENSOR_ATTR_2(temp##index##_beep, S_IWUSR | S_IRUGO, \
+ show_alarm_beep, store_beep, BEEP_ENABLE, \
+ index + (index > 4 ? 11 : 17)), \
+ SENSOR_ATTR_2(temp##index##_source_sel, S_IWUSR | S_IRUGO, \
+ show_temp_src, store_temp_src, NOT_USED, index - 1), \
+ SENSOR_ATTR_2(temp##index##_pwm_enable, S_IWUSR | S_IRUGO, \
+ show_temp_pwm_enable, store_temp_pwm_enable, \
+ TEMP_PWM_ENABLE, index - 1), \
+ SENSOR_ATTR_2(temp##index##_auto_channels_pwm, S_IWUSR | S_IRUGO, \
+ show_temp_pwm_enable, store_temp_pwm_enable, \
+ TEMP_PWM_FAN_MAP, index - 1), \
+ SENSOR_ATTR_2(thermal_cruise##index, S_IWUSR | S_IRUGO, \
+ show_temp_pwm, store_temp_pwm, TEMP_PWM_TTTI, index - 1), \
+ SENSOR_ATTR_2(temp##index##_warn, S_IWUSR | S_IRUGO, \
+ show_temp_pwm, store_temp_pwm, TEMP_PWM_CTFS, index - 1), \
+ SENSOR_ATTR_2(temp##index##_warn_hyst, S_IWUSR | S_IRUGO, \
+ show_temp_pwm, store_temp_pwm, TEMP_PWM_HCT, index - 1), \
+ SENSOR_ATTR_2(temp##index##_operation_hyst, S_IWUSR | S_IRUGO, \
+ show_temp_pwm, store_temp_pwm, TEMP_PWM_HOT, index - 1), \
+ SENSOR_ATTR_2(temp##index##_auto_point1_pwm, S_IRUGO | S_IWUSR, \
+ show_sf4_pwm, store_sf4_pwm, 0, index - 1), \
+ SENSOR_ATTR_2(temp##index##_auto_point2_pwm, S_IRUGO | S_IWUSR, \
+ show_sf4_pwm, store_sf4_pwm, 1, index - 1), \
+ SENSOR_ATTR_2(temp##index##_auto_point3_pwm, S_IRUGO | S_IWUSR, \
+ show_sf4_pwm, store_sf4_pwm, 2, index - 1), \
+ SENSOR_ATTR_2(temp##index##_auto_point4_pwm, S_IRUGO | S_IWUSR, \
+ show_sf4_pwm, store_sf4_pwm, 3, index - 1), \
+ SENSOR_ATTR_2(temp##index##_auto_point5_pwm, S_IRUGO | S_IWUSR, \
+ show_sf4_pwm, store_sf4_pwm, 4, index - 1), \
+ SENSOR_ATTR_2(temp##index##_auto_point6_pwm, S_IRUGO | S_IWUSR, \
+ show_sf4_pwm, store_sf4_pwm, 5, index - 1), \
+ SENSOR_ATTR_2(temp##index##_auto_point7_pwm, S_IRUGO | S_IWUSR, \
+ show_sf4_pwm, store_sf4_pwm, 6, index - 1), \
+ SENSOR_ATTR_2(temp##index##_auto_point1_temp, S_IRUGO | S_IWUSR,\
+ show_sf4_temp, store_sf4_temp, 0, index - 1), \
+ SENSOR_ATTR_2(temp##index##_auto_point2_temp, S_IRUGO | S_IWUSR,\
+ show_sf4_temp, store_sf4_temp, 1, index - 1), \
+ SENSOR_ATTR_2(temp##index##_auto_point3_temp, S_IRUGO | S_IWUSR,\
+ show_sf4_temp, store_sf4_temp, 2, index - 1), \
+ SENSOR_ATTR_2(temp##index##_auto_point4_temp, S_IRUGO | S_IWUSR,\
+ show_sf4_temp, store_sf4_temp, 3, index - 1), \
+ SENSOR_ATTR_2(temp##index##_auto_point5_temp, S_IRUGO | S_IWUSR,\
+ show_sf4_temp, store_sf4_temp, 4, index - 1), \
+ SENSOR_ATTR_2(temp##index##_auto_point6_temp, S_IRUGO | S_IWUSR,\
+ show_sf4_temp, store_sf4_temp, 5, index - 1), \
+ SENSOR_ATTR_2(temp##index##_auto_point7_temp, S_IRUGO | S_IWUSR,\
+ show_sf4_temp, store_sf4_temp, 6, index - 1) }
+
+
+static struct sensor_device_attribute_2 w83795_in[][5] = {
+ SENSOR_ATTR_IN(0),
+ SENSOR_ATTR_IN(1),
+ SENSOR_ATTR_IN(2),
+ SENSOR_ATTR_IN(3),
+ SENSOR_ATTR_IN(4),
+ SENSOR_ATTR_IN(5),
+ SENSOR_ATTR_IN(6),
+ SENSOR_ATTR_IN(7),
+ SENSOR_ATTR_IN(8),
+ SENSOR_ATTR_IN(9),
+ SENSOR_ATTR_IN(10),
+ SENSOR_ATTR_IN(11),
+ SENSOR_ATTR_IN(12),
+ SENSOR_ATTR_IN(13),
+ SENSOR_ATTR_IN(14),
+ SENSOR_ATTR_IN(15),
+ SENSOR_ATTR_IN(16),
+ SENSOR_ATTR_IN(17),
+ SENSOR_ATTR_IN(18),
+ SENSOR_ATTR_IN(19),
+ SENSOR_ATTR_IN(20),
+};
+
+static const struct sensor_device_attribute_2 w83795_fan[][4] = {
+ SENSOR_ATTR_FAN(1),
+ SENSOR_ATTR_FAN(2),
+ SENSOR_ATTR_FAN(3),
+ SENSOR_ATTR_FAN(4),
+ SENSOR_ATTR_FAN(5),
+ SENSOR_ATTR_FAN(6),
+ SENSOR_ATTR_FAN(7),
+ SENSOR_ATTR_FAN(8),
+ SENSOR_ATTR_FAN(9),
+ SENSOR_ATTR_FAN(10),
+ SENSOR_ATTR_FAN(11),
+ SENSOR_ATTR_FAN(12),
+ SENSOR_ATTR_FAN(13),
+ SENSOR_ATTR_FAN(14),
+};
+
+static const struct sensor_device_attribute_2 w83795_temp[][29] = {
+ SENSOR_ATTR_TEMP(1),
+ SENSOR_ATTR_TEMP(2),
+ SENSOR_ATTR_TEMP(3),
+ SENSOR_ATTR_TEMP(4),
+ SENSOR_ATTR_TEMP(5),
+ SENSOR_ATTR_TEMP(6),
+};
+
+static const struct sensor_device_attribute_2 w83795_dts[][8] = {
+ SENSOR_ATTR_DTS(7),
+ SENSOR_ATTR_DTS(8),
+ SENSOR_ATTR_DTS(9),
+ SENSOR_ATTR_DTS(10),
+ SENSOR_ATTR_DTS(11),
+ SENSOR_ATTR_DTS(12),
+ SENSOR_ATTR_DTS(13),
+ SENSOR_ATTR_DTS(14),
+};
+
+static const struct sensor_device_attribute_2 w83795_pwm[][7] = {
+ SENSOR_ATTR_PWM(1),
+ SENSOR_ATTR_PWM(2),
+ SENSOR_ATTR_PWM(3),
+ SENSOR_ATTR_PWM(4),
+ SENSOR_ATTR_PWM(5),
+ SENSOR_ATTR_PWM(6),
+ SENSOR_ATTR_PWM(7),
+ SENSOR_ATTR_PWM(8),
+};
+
+static const struct sensor_device_attribute_2 sda_single_files[] = {
+ SENSOR_ATTR_2(intrusion0_alarm, S_IWUSR | S_IRUGO, show_alarm_beep,
+ store_chassis_clear, ALARM_STATUS, 46),
+ SENSOR_ATTR_2(intrusion0_beep, S_IWUSR | S_IRUGO, show_alarm_beep,
+ store_beep, BEEP_ENABLE, 46),
+ SENSOR_ATTR_2(beep_enable, S_IWUSR | S_IRUGO, show_alarm_beep,
+ store_beep, BEEP_ENABLE, 47),
+#ifdef CONFIG_SENSORS_W83795_FANCTRL
+ SENSOR_ATTR_2(speed_cruise_tolerance, S_IWUSR | S_IRUGO, show_fanin,
+ store_fanin, FANIN_TOL, NOT_USED),
+ SENSOR_ATTR_2(pwm_default, S_IWUSR | S_IRUGO, show_sf_setup,
+ store_sf_setup, SETUP_PWM_DEFAULT, NOT_USED),
+ SENSOR_ATTR_2(pwm_uptime, S_IWUSR | S_IRUGO, show_sf_setup,
+ store_sf_setup, SETUP_PWM_UPTIME, NOT_USED),
+ SENSOR_ATTR_2(pwm_downtime, S_IWUSR | S_IRUGO, show_sf_setup,
+ store_sf_setup, SETUP_PWM_DOWNTIME, NOT_USED),
+#endif
+};
+
+/*
+ * Driver interface
+ */
+
+static void w83795_init_client(struct i2c_client *client)
+{
+ struct w83795_data *data = i2c_get_clientdata(client);
+ static const u16 clkin[4] = { /* in kHz */
+ 14318, 24000, 33333, 48000
+ };
+ u8 config;
+
+ if (reset)
+ w83795_write(client, W83795_REG_CONFIG, 0x80);
+
+ /* Start monitoring if needed */
+ config = w83795_read(client, W83795_REG_CONFIG);
+ if (!(config & W83795_REG_CONFIG_START)) {
+ dev_info(&client->dev, "Enabling monitoring operations\n");
+ w83795_write(client, W83795_REG_CONFIG,
+ config | W83795_REG_CONFIG_START);
+ }
+
+ data->clkin = clkin[(config >> 3) & 0x3];
+ dev_dbg(&client->dev, "clkin = %u kHz\n", data->clkin);
+}
+
+static int w83795_get_device_id(struct i2c_client *client)
+{
+ int device_id;
+
+ device_id = i2c_smbus_read_byte_data(client, W83795_REG_DEVICEID);
+
+ /* Special case for rev. A chips; can't be checked first because later
+ revisions emulate this for compatibility */
+ if (device_id < 0 || (device_id & 0xf0) != 0x50) {
+ int alt_id;
+
+ alt_id = i2c_smbus_read_byte_data(client,
+ W83795_REG_DEVICEID_A);
+ if (alt_id == 0x50)
+ device_id = alt_id;
+ }
+
+ return device_id;
+}
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int w83795_detect(struct i2c_client *client,
+ struct i2c_board_info *info)
+{
+ int bank, vendor_id, device_id, expected, i2c_addr, config;
+ struct i2c_adapter *adapter = client->adapter;
+ unsigned short address = client->addr;
+ const char *chip_name;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -ENODEV;
+ bank = i2c_smbus_read_byte_data(client, W83795_REG_BANKSEL);
+ if (bank < 0 || (bank & 0x7c)) {
+ dev_dbg(&adapter->dev,
+ "w83795: Detection failed at addr 0x%02hx, check %s\n",
+ address, "bank");
+ return -ENODEV;
+ }
+
+ /* Check Nuvoton vendor ID */
+ vendor_id = i2c_smbus_read_byte_data(client, W83795_REG_VENDORID);
+ expected = bank & 0x80 ? 0x5c : 0xa3;
+ if (vendor_id != expected) {
+ dev_dbg(&adapter->dev,
+ "w83795: Detection failed at addr 0x%02hx, check %s\n",
+ address, "vendor id");
+ return -ENODEV;
+ }
+
+ /* Check device ID */
+ device_id = w83795_get_device_id(client) |
+ (i2c_smbus_read_byte_data(client, W83795_REG_CHIPID) << 8);
+ if ((device_id >> 4) != 0x795) {
+ dev_dbg(&adapter->dev,
+ "w83795: Detection failed at addr 0x%02hx, check %s\n",
+ address, "device id\n");
+ return -ENODEV;
+ }
+
+ /* If Nuvoton chip, address of chip and W83795_REG_I2C_ADDR
+ should match */
+ if ((bank & 0x07) == 0) {
+ i2c_addr = i2c_smbus_read_byte_data(client,
+ W83795_REG_I2C_ADDR);
+ if ((i2c_addr & 0x7f) != address) {
+ dev_dbg(&adapter->dev,
+ "w83795: Detection failed at addr 0x%02hx, "
+ "check %s\n", address, "i2c addr");
+ return -ENODEV;
+ }
+ }
+
+ /* Check 795 chip type: 795G or 795ADG
+ Usually we don't write to chips during detection, but here we don't
+ quite have the choice; hopefully it's OK, we are about to return
+ success anyway */
+ if ((bank & 0x07) != 0)
+ i2c_smbus_write_byte_data(client, W83795_REG_BANKSEL,
+ bank & ~0x07);
+ config = i2c_smbus_read_byte_data(client, W83795_REG_CONFIG);
+ if (config & W83795_REG_CONFIG_CONFIG48)
+ chip_name = "w83795adg";
+ else
+ chip_name = "w83795g";
+
+ strlcpy(info->type, chip_name, I2C_NAME_SIZE);
+ dev_info(&adapter->dev, "Found %s rev. %c at 0x%02hx\n", chip_name,
+ 'A' + (device_id & 0xf), address);
+
+ return 0;
+}
+
+static int w83795_handle_files(struct device *dev, int (*fn)(struct device *,
+ const struct device_attribute *))
+{
+ struct w83795_data *data = dev_get_drvdata(dev);
+ int err, i, j;
+
+ for (i = 0; i < ARRAY_SIZE(w83795_in); i++) {
+ if (!(data->has_in & (1 << i)))
+ continue;
+ for (j = 0; j < ARRAY_SIZE(w83795_in[0]); j++) {
+ err = fn(dev, &w83795_in[i][j].dev_attr);
+ if (err)
+ return err;
+ }
+ }
+
+ for (i = 0; i < ARRAY_SIZE(w83795_fan); i++) {
+ if (!(data->has_fan & (1 << i)))
+ continue;
+ for (j = 0; j < ARRAY_SIZE(w83795_fan[0]); j++) {
+ err = fn(dev, &w83795_fan[i][j].dev_attr);
+ if (err)
+ return err;
+ }
+ }
+
+ for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) {
+ err = fn(dev, &sda_single_files[i].dev_attr);
+ if (err)
+ return err;
+ }
+
+#ifdef CONFIG_SENSORS_W83795_FANCTRL
+ for (i = 0; i < data->has_pwm; i++) {
+ for (j = 0; j < ARRAY_SIZE(w83795_pwm[0]); j++) {
+ err = fn(dev, &w83795_pwm[i][j].dev_attr);
+ if (err)
+ return err;
+ }
+ }
+#endif
+
+ for (i = 0; i < ARRAY_SIZE(w83795_temp); i++) {
+ if (!(data->has_temp & (1 << i)))
+ continue;
+#ifdef CONFIG_SENSORS_W83795_FANCTRL
+ for (j = 0; j < ARRAY_SIZE(w83795_temp[0]); j++) {
+#else
+ for (j = 0; j < 8; j++) {
+#endif
+ err = fn(dev, &w83795_temp[i][j].dev_attr);
+ if (err)
+ return err;
+ }
+ }
+
+ if (data->enable_dts) {
+ for (i = 0; i < ARRAY_SIZE(w83795_dts); i++) {
+ if (!(data->has_dts & (1 << i)))
+ continue;
+ for (j = 0; j < ARRAY_SIZE(w83795_dts[0]); j++) {
+ err = fn(dev, &w83795_dts[i][j].dev_attr);
+ if (err)
+ return err;
+ }
+ }
+ }
+
+ return 0;
+}
+
+/* We need a wrapper that fits in w83795_handle_files */
+static int device_remove_file_wrapper(struct device *dev,
+ const struct device_attribute *attr)
+{
+ device_remove_file(dev, attr);
+ return 0;
+}
+
+static void w83795_check_dynamic_in_limits(struct i2c_client *client)
+{
+ struct w83795_data *data = i2c_get_clientdata(client);
+ u8 vid_ctl;
+ int i, err_max, err_min;
+
+ vid_ctl = w83795_read(client, W83795_REG_VID_CTRL);
+
+ /* Return immediately if VRM isn't configured */
+ if ((vid_ctl & 0x07) == 0x00 || (vid_ctl & 0x07) == 0x07)
+ return;
+
+ data->has_dyn_in = (vid_ctl >> 3) & 0x07;
+ for (i = 0; i < 2; i++) {
+ if (!(data->has_dyn_in & (1 << i)))
+ continue;
+
+ /* Voltage limits in dynamic mode, switch to read-only */
+ err_max = sysfs_chmod_file(&client->dev.kobj,
+ &w83795_in[i][2].dev_attr.attr,
+ S_IRUGO);
+ err_min = sysfs_chmod_file(&client->dev.kobj,
+ &w83795_in[i][3].dev_attr.attr,
+ S_IRUGO);
+ if (err_max || err_min)
+ dev_warn(&client->dev, "Failed to set in%d limits "
+ "read-only (%d, %d)\n", i, err_max, err_min);
+ else
+ dev_info(&client->dev, "in%d limits set dynamically "
+ "from VID\n", i);
+ }
+}
+
+/* Check pins that can be used for either temperature or voltage monitoring */
+static void w83795_apply_temp_config(struct w83795_data *data, u8 config,
+ int temp_chan, int in_chan)
+{
+ /* config is a 2-bit value */
+ switch (config) {
+ case 0x2: /* Voltage monitoring */
+ data->has_in |= 1 << in_chan;
+ break;
+ case 0x1: /* Thermal diode */
+ if (temp_chan >= 4)
+ break;
+ data->temp_mode |= 1 << temp_chan;
+ /* fall through */
+ case 0x3: /* Thermistor */
+ data->has_temp |= 1 << temp_chan;
+ break;
+ }
+}
+
+static int w83795_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ int i;
+ u8 tmp;
+ struct device *dev = &client->dev;
+ struct w83795_data *data;
+ int err;
+
+ data = kzalloc(sizeof(struct w83795_data), GFP_KERNEL);
+ if (!data) {
+ err = -ENOMEM;
+ goto exit;
+ }
+
+ i2c_set_clientdata(client, data);
+ data->chip_type = id->driver_data;
+ data->bank = i2c_smbus_read_byte_data(client, W83795_REG_BANKSEL);
+ mutex_init(&data->update_lock);
+
+ /* Initialize the chip */
+ w83795_init_client(client);
+
+ /* Check which voltages and fans are present */
+ data->has_in = w83795_read(client, W83795_REG_VOLT_CTRL1)
+ | (w83795_read(client, W83795_REG_VOLT_CTRL2) << 8);
+ data->has_fan = w83795_read(client, W83795_REG_FANIN_CTRL1)
+ | (w83795_read(client, W83795_REG_FANIN_CTRL2) << 8);
+
+ /* Check which analog temperatures and extra voltages are present */
+ tmp = w83795_read(client, W83795_REG_TEMP_CTRL1);
+ if (tmp & 0x20)
+ data->enable_dts = 1;
+ w83795_apply_temp_config(data, (tmp >> 2) & 0x3, 5, 16);
+ w83795_apply_temp_config(data, tmp & 0x3, 4, 15);
+ tmp = w83795_read(client, W83795_REG_TEMP_CTRL2);
+ w83795_apply_temp_config(data, tmp >> 6, 3, 20);
+ w83795_apply_temp_config(data, (tmp >> 4) & 0x3, 2, 19);
+ w83795_apply_temp_config(data, (tmp >> 2) & 0x3, 1, 18);
+ w83795_apply_temp_config(data, tmp & 0x3, 0, 17);
+
+ /* Check DTS enable status */
+ if (data->enable_dts) {
+ if (1 & w83795_read(client, W83795_REG_DTSC))
+ data->enable_dts |= 2;
+ data->has_dts = w83795_read(client, W83795_REG_DTSE);
+ }
+
+ /* Report PECI Tbase values */
+ if (data->enable_dts == 1) {
+ for (i = 0; i < 8; i++) {
+ if (!(data->has_dts & (1 << i)))
+ continue;
+ tmp = w83795_read(client, W83795_REG_PECI_TBASE(i));
+ dev_info(&client->dev,
+ "PECI agent %d Tbase temperature: %u\n",
+ i + 1, (unsigned int)tmp & 0x7f);
+ }
+ }
+
+ data->has_gain = w83795_read(client, W83795_REG_VMIGB_CTRL) & 0x0f;
+
+ /* pwm and smart fan */
+ if (data->chip_type == w83795g)
+ data->has_pwm = 8;
+ else
+ data->has_pwm = 2;
+
+ err = w83795_handle_files(dev, device_create_file);
+ if (err)
+ goto exit_remove;
+
+ if (data->chip_type == w83795g)
+ w83795_check_dynamic_in_limits(client);
+
+ data->hwmon_dev = hwmon_device_register(dev);
+ if (IS_ERR(data->hwmon_dev)) {
+ err = PTR_ERR(data->hwmon_dev);
+ goto exit_remove;
+ }
+
+ return 0;
+
+exit_remove:
+ w83795_handle_files(dev, device_remove_file_wrapper);
+ kfree(data);
+exit:
+ return err;
+}
+
+static int w83795_remove(struct i2c_client *client)
+{
+ struct w83795_data *data = i2c_get_clientdata(client);
+
+ hwmon_device_unregister(data->hwmon_dev);
+ w83795_handle_files(&client->dev, device_remove_file_wrapper);
+ kfree(data);
+
+ return 0;
+}
+
+
+static const struct i2c_device_id w83795_id[] = {
+ { "w83795g", w83795g },
+ { "w83795adg", w83795adg },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, w83795_id);
+
+static struct i2c_driver w83795_driver = {
+ .driver = {
+ .name = "w83795",
+ },
+ .probe = w83795_probe,
+ .remove = w83795_remove,
+ .id_table = w83795_id,
+
+ .class = I2C_CLASS_HWMON,
+ .detect = w83795_detect,
+ .address_list = normal_i2c,
+};
+
+static int __init sensors_w83795_init(void)
+{
+ return i2c_add_driver(&w83795_driver);
+}
+
+static void __exit sensors_w83795_exit(void)
+{
+ i2c_del_driver(&w83795_driver);
+}
+
+MODULE_AUTHOR("Wei Song, Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("W83795G/ADG hardware monitoring driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_w83795_init);
+module_exit(sensors_w83795_exit);
diff --git a/drivers/macintosh/Kconfig b/drivers/macintosh/Kconfig
index fd85bde283a..3d7355ff730 100644
--- a/drivers/macintosh/Kconfig
+++ b/drivers/macintosh/Kconfig
@@ -256,4 +256,30 @@ config PMAC_RACKMETER
This driver provides some support to control the front panel
blue LEDs "vu-meter" of the XServer macs.
+config SENSORS_AMS
+ tristate "Apple Motion Sensor driver"
+ depends on PPC_PMAC && !PPC64 && INPUT && ((ADB_PMU && I2C = y) || (ADB_PMU && !I2C) || I2C) && EXPERIMENTAL
+ select INPUT_POLLDEV
+ help
+ Support for the motion sensor included in PowerBooks. Includes
+ implementations for PMU and I2C.
+
+ This driver can also be built as a module. If so, the module
+ will be called ams.
+
+config SENSORS_AMS_PMU
+ bool "PMU variant"
+ depends on SENSORS_AMS && ADB_PMU
+ default y
+ help
+ PMU variant of motion sensor, found in late 2005 PowerBooks.
+
+config SENSORS_AMS_I2C
+ bool "I2C variant"
+ depends on SENSORS_AMS && I2C
+ default y
+ help
+ I2C variant of motion sensor, found in early 2005 PowerBooks and
+ iBooks.
+
endif # MACINTOSH_DRIVERS
diff --git a/drivers/macintosh/Makefile b/drivers/macintosh/Makefile
index e3132efa17c..6652a6ebb6f 100644
--- a/drivers/macintosh/Makefile
+++ b/drivers/macintosh/Makefile
@@ -48,3 +48,5 @@ obj-$(CONFIG_WINDFARM_PM121) += windfarm_pm121.o windfarm_smu_sat.o \
windfarm_max6690_sensor.o \
windfarm_lm75_sensor.o windfarm_pid.o
obj-$(CONFIG_PMAC_RACKMETER) += rack-meter.o
+
+obj-$(CONFIG_SENSORS_AMS) += ams/
diff --git a/drivers/hwmon/ams/Makefile b/drivers/macintosh/ams/Makefile
index 41c95b2089d..41c95b2089d 100644
--- a/drivers/hwmon/ams/Makefile
+++ b/drivers/macintosh/ams/Makefile
diff --git a/drivers/hwmon/ams/ams-core.c b/drivers/macintosh/ams/ams-core.c
index 2ad62c339cd..2ad62c339cd 100644
--- a/drivers/hwmon/ams/ams-core.c
+++ b/drivers/macintosh/ams/ams-core.c
diff --git a/drivers/hwmon/ams/ams-i2c.c b/drivers/macintosh/ams/ams-i2c.c
index abeecd27b48..abeecd27b48 100644
--- a/drivers/hwmon/ams/ams-i2c.c
+++ b/drivers/macintosh/ams/ams-i2c.c
diff --git a/drivers/hwmon/ams/ams-input.c b/drivers/macintosh/ams/ams-input.c
index 8a712392cd3..8a712392cd3 100644
--- a/drivers/hwmon/ams/ams-input.c
+++ b/drivers/macintosh/ams/ams-input.c
diff --git a/drivers/hwmon/ams/ams-pmu.c b/drivers/macintosh/ams/ams-pmu.c
index 4f61b3ee1b0..4f61b3ee1b0 100644
--- a/drivers/hwmon/ams/ams-pmu.c
+++ b/drivers/macintosh/ams/ams-pmu.c
diff --git a/drivers/hwmon/ams/ams.h b/drivers/macintosh/ams/ams.h
index 90f094d4545..90f094d4545 100644
--- a/drivers/hwmon/ams/ams.h
+++ b/drivers/macintosh/ams/ams.h
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-16 00:05:34 +0000