From bb9a35f293a3c8b5d57253cdfe2f29fa2627e1b9 Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Thu, 15 Jan 2009 22:27:46 +0100 Subject: hwmon: (k8temp) Warn about fam F rev F errata Add warning about wrong CPU temperature readouts on all fam F rev F. The allowed combinations of processors ensure that all processors in a multisocket system have similar characteristics, e.g. (1) provide temperature sensor interface (>=RevC && =RevF) Thus it is sufficient to check the revision of the boot CPU. For "mixed silicon support" refer to "Revision Guide for AMD Athlon 64 and AMD Opteron Processors" (RevA-E) and "Revision Guide for AMD NPT Family 0Fh Processors" (RefF-G). Cc: Rudolf Marek Signed-off-by: Andreas Herrmann Signed-off-by: Jean Delvare --- drivers/hwmon/k8temp.c | 29 ++++++++++++++++++++++------- 1 file changed, 22 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/hwmon/k8temp.c b/drivers/hwmon/k8temp.c index bd2bde0ef95..ca56f2e26fd 100644 --- a/drivers/hwmon/k8temp.c +++ b/drivers/hwmon/k8temp.c @@ -31,6 +31,7 @@ #include #include #include +#include #define TEMP_FROM_REG(val) (((((val) >> 16) & 0xff) - 49) * 1000) #define REG_TEMP 0xe4 @@ -141,20 +142,34 @@ static int __devinit k8temp_probe(struct pci_dev *pdev, int err; u8 scfg; u32 temp; + u8 model, stepping; struct k8temp_data *data; - u32 cpuid = cpuid_eax(1); - - /* this feature should be available since SH-C0 core */ - if ((cpuid == 0xf40) || (cpuid == 0xf50) || (cpuid == 0xf51)) { - err = -ENODEV; - goto exit; - } if (!(data = kzalloc(sizeof(struct k8temp_data), GFP_KERNEL))) { err = -ENOMEM; goto exit; } + 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; + } + + if (model >= 0x40) { + dev_warn(&pdev->dev, "Temperature readouts might be " + "wrong - check erratum #141\n"); + } + + break; + } + 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); -- cgit v1.2.3 From a2e066bba2aad6583e3ff648bf28339d6c9f0898 Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Thu, 15 Jan 2009 22:27:47 +0100 Subject: hwmon: (k8temp) Fix wrong sensor selection for AMD K8 RevF/RevG CPUs Meaning of ThermSenseCoreSel bit was inverted beginning with K8 RevF. That means with current driver temp1/temp2 belong to core 1 and temp3/temp4 belong to core 0 on a K8 RevF/RevG CPU. This patch ensures that temp1/temp2 always belong to core 0 and temp3/temp4 to core 1 for all K8 revisions. Cc: Rudolf Marek Signed-off-by: Andreas Herrmann Signed-off-by: Jean Delvare --- drivers/hwmon/k8temp.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers') diff --git a/drivers/hwmon/k8temp.c b/drivers/hwmon/k8temp.c index ca56f2e26fd..a6381bc9189 100644 --- a/drivers/hwmon/k8temp.c +++ b/drivers/hwmon/k8temp.c @@ -48,6 +48,7 @@ struct k8temp_data { /* registers values */ u8 sensorsp; /* sensor presence bits - SEL_CORE & SEL_PLACE */ u32 temp[2][2]; /* core, place */ + u8 swap_core_select; /* meaning of SEL_CORE is inverted */ }; static struct k8temp_data *k8temp_update_device(struct device *dev) @@ -117,6 +118,9 @@ static ssize_t show_temp(struct device *dev, int place = attr->index; struct k8temp_data *data = k8temp_update_device(dev); + if (data->swap_core_select) + core = core ? 0 : 1; + return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[core][place])); } @@ -162,7 +166,12 @@ static int __devinit k8temp_probe(struct pci_dev *pdev, 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"); } -- cgit v1.2.3 From 76ff08da34196cfa308fcd3552bb9ea20888e745 Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Thu, 15 Jan 2009 22:27:47 +0100 Subject: hwmon: (k8temp) Fix temperature reporting for (most) K8 RevG CPUs Current Temperature for K8 RevG desktop CPUs is a "normalized value" which can be below ambient temperature. As a consequence lots of RevG systems report temperatures like: $ sensors k8temp-pci-00c3 Adapter: PCI adapter Core0 Temp: +17 C Core0 Temp: +3 C Core1 Temp: +21 C Core1 Temp: +5 C being quite below ambient temperature. There are even reports of negative temperature values. This patch corrects the temperature reporting of k8temp for RevG desktop CPUs. Cc: Rudolf Marek Signed-off-by: Andreas Herrmann Signed-off-by: Jean Delvare --- drivers/hwmon/k8temp.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/hwmon/k8temp.c b/drivers/hwmon/k8temp.c index a6381bc9189..1fe99511184 100644 --- a/drivers/hwmon/k8temp.c +++ b/drivers/hwmon/k8temp.c @@ -49,6 +49,7 @@ struct k8temp_data { u8 sensorsp; /* sensor presence bits - SEL_CORE & SEL_PLACE */ u32 temp[2][2]; /* core, place */ u8 swap_core_select; /* meaning of SEL_CORE is inverted */ + u32 temp_offset; }; static struct k8temp_data *k8temp_update_device(struct device *dev) @@ -116,13 +117,15 @@ static ssize_t show_temp(struct device *dev, to_sensor_dev_attr_2(devattr); int core = attr->nr; int place = attr->index; + int temp; struct k8temp_data *data = k8temp_update_device(dev); if (data->swap_core_select) core = core ? 0 : 1; - return sprintf(buf, "%d\n", - TEMP_FROM_REG(data->temp[core][place])); + temp = TEMP_FROM_REG(data->temp[core][place]) + data->temp_offset; + + return sprintf(buf, "%d\n", temp); } /* core, place */ @@ -176,6 +179,16 @@ static int __devinit k8temp_probe(struct pci_dev *pdev, "wrong - check erratum #141\n"); } + if ((model >= 0x69) && + !(model == 0xc1 || model == 0x6c || model == 0x7c)) { + /* + * RevG desktop CPUs (i.e. no socket S1G1 parts) + * need additional offset, otherwise reported + * temperature is below ambient temperature + */ + data->temp_offset = 21000; + } + break; } -- cgit v1.2.3 From 1c301fc5394f7e1aa4c201e6e03d55d9c08b3bdf Mon Sep 17 00:00:00 2001 From: Jordan Crouse Date: Thu, 15 Jan 2009 22:27:47 +0100 Subject: hwmon: Add a driver for the ADT7475 hardware monitoring chip Hwmon driver for the ADT7475 chip. Signed-off-by: Jordan Crouse Signed-off-by: Hans de Goede Signed-off-by: Jean Delvare --- drivers/hwmon/Kconfig | 10 + drivers/hwmon/Makefile | 2 + drivers/hwmon/adt7475.c | 1221 +++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 1233 insertions(+) create mode 100644 drivers/hwmon/adt7475.c (limited to 'drivers') diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 4b33bc82cc2..5c349a19a3a 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -189,6 +189,16 @@ config SENSORS_ADT7473 This driver can also be built as a module. If so, the module will be called adt7473. +config SENSORS_ADT7475 + tristate "Analog Devices ADT7475" + depends on I2C && EXPERIMENTAL + help + If you say yes here you get support for the Analog Devices + ADT7475 hardware monitoring chips. + + This driver can also be build as a module. If so, the module + will be called adt7475. + config SENSORS_K8TEMP tristate "AMD Athlon64/FX or Opteron temperature sensor" depends on X86 && PCI && EXPERIMENTAL diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index 19cb1ace3eb..2e80f37f39e 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -28,6 +28,8 @@ obj-$(CONFIG_SENSORS_ADS7828) += ads7828.o obj-$(CONFIG_SENSORS_ADT7462) += adt7462.o obj-$(CONFIG_SENSORS_ADT7470) += adt7470.o obj-$(CONFIG_SENSORS_ADT7473) += adt7473.o +obj-$(CONFIG_SENSORS_ADT7475) += adt7475.o + obj-$(CONFIG_SENSORS_APPLESMC) += applesmc.o obj-$(CONFIG_SENSORS_AMS) += ams/ obj-$(CONFIG_SENSORS_ATXP1) += atxp1.o diff --git a/drivers/hwmon/adt7475.c b/drivers/hwmon/adt7475.c new file mode 100644 index 00000000000..d39877a7da6 --- /dev/null +++ b/drivers/hwmon/adt7475.c @@ -0,0 +1,1221 @@ +/* + * adt7475 - Thermal sensor driver for the ADT7475 chip and derivatives + * Copyright (C) 2007-2008, Advanced Micro Devices, Inc. + * Copyright (C) 2008 Jordan Crouse + * Copyright (C) 2008 Hans de Goede + + * Derived from the lm83 driver by Jean Delvare + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include + +/* Indexes for the sysfs hooks */ + +#define INPUT 0 +#define MIN 1 +#define MAX 2 +#define CONTROL 3 +#define OFFSET 3 +#define AUTOMIN 4 +#define THERM 5 +#define HYSTERSIS 6 + +/* These are unique identifiers for the sysfs functions - unlike the + numbers above, these are not also indexes into an array +*/ + +#define ALARM 9 +#define FAULT 10 + +/* 7475 Common Registers */ + +#define REG_VOLTAGE_BASE 0x21 +#define REG_TEMP_BASE 0x25 +#define REG_TACH_BASE 0x28 +#define REG_PWM_BASE 0x30 +#define REG_PWM_MAX_BASE 0x38 + +#define REG_DEVID 0x3D +#define REG_VENDID 0x3E + +#define REG_STATUS1 0x41 +#define REG_STATUS2 0x42 + +#define REG_VOLTAGE_MIN_BASE 0x46 +#define REG_VOLTAGE_MAX_BASE 0x47 + +#define REG_TEMP_MIN_BASE 0x4E +#define REG_TEMP_MAX_BASE 0x4F + +#define REG_TACH_MIN_BASE 0x54 + +#define REG_PWM_CONFIG_BASE 0x5C + +#define REG_TEMP_TRANGE_BASE 0x5F + +#define REG_PWM_MIN_BASE 0x64 + +#define REG_TEMP_TMIN_BASE 0x67 +#define REG_TEMP_THERM_BASE 0x6A + +#define REG_REMOTE1_HYSTERSIS 0x6D +#define REG_REMOTE2_HYSTERSIS 0x6E + +#define REG_TEMP_OFFSET_BASE 0x70 + +#define REG_EXTEND1 0x76 +#define REG_EXTEND2 0x77 +#define REG_CONFIG5 0x7C + +#define CONFIG5_TWOSCOMP 0x01 +#define CONFIG5_TEMPOFFSET 0x02 + +/* ADT7475 Settings */ + +#define ADT7475_VOLTAGE_COUNT 2 +#define ADT7475_TEMP_COUNT 3 +#define ADT7475_TACH_COUNT 4 +#define ADT7475_PWM_COUNT 3 + +/* Macro to read the registers */ + +#define adt7475_read(reg) i2c_smbus_read_byte_data(client, (reg)) + +/* Macros to easily index the registers */ + +#define TACH_REG(idx) (REG_TACH_BASE + ((idx) * 2)) +#define TACH_MIN_REG(idx) (REG_TACH_MIN_BASE + ((idx) * 2)) + +#define PWM_REG(idx) (REG_PWM_BASE + (idx)) +#define PWM_MAX_REG(idx) (REG_PWM_MAX_BASE + (idx)) +#define PWM_MIN_REG(idx) (REG_PWM_MIN_BASE + (idx)) +#define PWM_CONFIG_REG(idx) (REG_PWM_CONFIG_BASE + (idx)) + +#define VOLTAGE_REG(idx) (REG_VOLTAGE_BASE + (idx)) +#define VOLTAGE_MIN_REG(idx) (REG_VOLTAGE_MIN_BASE + ((idx) * 2)) +#define VOLTAGE_MAX_REG(idx) (REG_VOLTAGE_MAX_BASE + ((idx) * 2)) + +#define TEMP_REG(idx) (REG_TEMP_BASE + (idx)) +#define TEMP_MIN_REG(idx) (REG_TEMP_MIN_BASE + ((idx) * 2)) +#define TEMP_MAX_REG(idx) (REG_TEMP_MAX_BASE + ((idx) * 2)) +#define TEMP_TMIN_REG(idx) (REG_TEMP_TMIN_BASE + (idx)) +#define TEMP_THERM_REG(idx) (REG_TEMP_THERM_BASE + (idx)) +#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[] = { 0x2e, I2C_CLIENT_END }; + +I2C_CLIENT_INSMOD_1(adt7475); + +static const struct i2c_device_id adt7475_id[] = { + { "adt7475", adt7475 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, adt7475_id); + +struct adt7475_data { + struct device *hwmon_dev; + struct mutex lock; + + unsigned long measure_updated; + unsigned long limits_updated; + char valid; + + u8 config5; + u16 alarms; + u16 voltage[3][3]; + u16 temp[7][3]; + u16 tach[2][4]; + u8 pwm[4][3]; + u8 range[3]; + u8 pwmctl[3]; + u8 pwmchan[3]; +}; + +static struct i2c_driver adt7475_driver; +static struct adt7475_data *adt7475_update_device(struct device *dev); +static void adt7475_read_hystersis(struct i2c_client *client); +static void adt7475_read_pwm(struct i2c_client *client, int index); + +/* Given a temp value, convert it to register value */ + +static inline u16 temp2reg(struct adt7475_data *data, long val) +{ + u16 ret; + + if (!(data->config5 & CONFIG5_TWOSCOMP)) { + val = SENSORS_LIMIT(val, -64000, 191000); + ret = (val + 64500) / 1000; + } else { + val = SENSORS_LIMIT(val, -128000, 127000); + if (val < -500) + ret = (256500 + val) / 1000; + else + ret = (val + 500) / 1000; + } + + return ret << 2; +} + +/* Given a register value, convert it to a real temp value */ + +static inline int reg2temp(struct adt7475_data *data, u16 reg) +{ + if (data->config5 & CONFIG5_TWOSCOMP) { + if (reg >= 512) + return (reg - 1024) * 250; + else + return reg * 250; + } else + return (reg - 256) * 250; +} + +static inline int tach2rpm(u16 tach) +{ + if (tach == 0 || tach == 0xFFFF) + return 0; + + return (90000 * 60) / tach; +} + +static inline u16 rpm2tach(unsigned long rpm) +{ + if (rpm == 0) + return 0; + + return SENSORS_LIMIT((90000 * 60) / rpm, 1, 0xFFFF); +} + +static inline int reg2vcc(u16 reg) +{ + return (4296 * reg) / 1000; +} + +static inline int reg2vccp(u16 reg) +{ + return (2929 * reg) / 1000; +} + +static inline u16 vcc2reg(long vcc) +{ + vcc = SENSORS_LIMIT(vcc, 0, 4396); + return (vcc * 1000) / 4296; +} + +static inline u16 vccp2reg(long vcc) +{ + vcc = SENSORS_LIMIT(vcc, 0, 2998); + return (vcc * 1000) / 2929; +} + +static u16 adt7475_read_word(struct i2c_client *client, int reg) +{ + u16 val; + + val = i2c_smbus_read_byte_data(client, reg); + val |= (i2c_smbus_read_byte_data(client, reg + 1) << 8); + + return val; +} + +static void adt7475_write_word(struct i2c_client *client, int reg, u16 val) +{ + i2c_smbus_write_byte_data(client, reg + 1, val >> 8); + i2c_smbus_write_byte_data(client, reg, val & 0xFF); +} + +/* Find the nearest value in a table - used for pwm frequency and + auto temp range */ +static int find_nearest(long val, const int *array, int size) +{ + int i; + + if (val < array[0]) + return 0; + + if (val > array[size - 1]) + return size - 1; + + for (i = 0; i < size - 1; i++) { + int a, b; + + if (val > array[i + 1]) + continue; + + a = val - array[i]; + b = array[i + 1] - val; + + return (a <= b) ? i : i + 1; + } + + return 0; +} + +static ssize_t show_voltage(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct adt7475_data *data = adt7475_update_device(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + unsigned short val; + + switch (sattr->nr) { + case ALARM: + return sprintf(buf, "%d\n", + (data->alarms >> (sattr->index + 1)) & 1); + default: + val = data->voltage[sattr->nr][sattr->index]; + return sprintf(buf, "%d\n", + sattr->index == + 0 ? reg2vccp(val) : reg2vcc(val)); + } +} + +static ssize_t set_voltage(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + struct i2c_client *client = to_i2c_client(dev); + struct adt7475_data *data = i2c_get_clientdata(client); + unsigned char reg; + long val; + + if (strict_strtol(buf, 10, &val)) + return -EINVAL; + + mutex_lock(&data->lock); + + data->voltage[sattr->nr][sattr->index] = + sattr->index ? vcc2reg(val) : vccp2reg(val); + + if (sattr->nr == MIN) + reg = VOLTAGE_MIN_REG(sattr->index); + else + reg = VOLTAGE_MAX_REG(sattr->index); + + i2c_smbus_write_byte_data(client, reg, + data->voltage[sattr->nr][sattr->index] >> 2); + mutex_unlock(&data->lock); + + return count; +} + +static ssize_t show_temp(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct adt7475_data *data = adt7475_update_device(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + int out; + + switch (sattr->nr) { + case HYSTERSIS: + mutex_lock(&data->lock); + out = data->temp[sattr->nr][sattr->index]; + if (sattr->index != 1) + out = (out >> 4) & 0xF; + else + out = (out & 0xF); + /* Show the value as an absolute number tied to + * THERM */ + out = reg2temp(data, data->temp[THERM][sattr->index]) - + out * 1000; + mutex_unlock(&data->lock); + break; + + case OFFSET: + /* Offset is always 2's complement, regardless of the + * setting in CONFIG5 */ + mutex_lock(&data->lock); + out = (s8)data->temp[sattr->nr][sattr->index]; + if (data->config5 & CONFIG5_TEMPOFFSET) + out *= 1000; + else + out *= 500; + mutex_unlock(&data->lock); + break; + + case ALARM: + out = (data->alarms >> (sattr->index + 4)) & 1; + break; + + case FAULT: + /* Note - only for remote1 and remote2 */ + out = data->alarms & (sattr->index ? 0x8000 : 0x4000); + out = out ? 0 : 1; + break; + + default: + /* All other temp values are in the configured format */ + out = reg2temp(data, data->temp[sattr->nr][sattr->index]); + } + + return sprintf(buf, "%d\n", out); +} + +static ssize_t set_temp(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + struct i2c_client *client = to_i2c_client(dev); + struct adt7475_data *data = i2c_get_clientdata(client); + unsigned char reg = 0; + u8 out; + int temp; + long val; + + if (strict_strtol(buf, 10, &val)) + return -EINVAL; + + mutex_lock(&data->lock); + + /* We need the config register in all cases for temp <-> reg conv. */ + data->config5 = adt7475_read(REG_CONFIG5); + + switch (sattr->nr) { + case OFFSET: + if (data->config5 & CONFIG5_TEMPOFFSET) { + val = SENSORS_LIMIT(val, -63000, 127000); + out = data->temp[OFFSET][sattr->index] = val / 1000; + } else { + val = SENSORS_LIMIT(val, -63000, 64000); + out = data->temp[OFFSET][sattr->index] = val / 500; + } + break; + + case HYSTERSIS: + /* The value will be given as an absolute value, turn it + into an offset based on THERM */ + + /* Read fresh THERM and HYSTERSIS values from the chip */ + data->temp[THERM][sattr->index] = + adt7475_read(TEMP_THERM_REG(sattr->index)) << 2; + adt7475_read_hystersis(client); + + temp = reg2temp(data, data->temp[THERM][sattr->index]); + val = SENSORS_LIMIT(val, temp - 15000, temp); + val = (temp - val) / 1000; + + if (sattr->index != 1) { + data->temp[HYSTERSIS][sattr->index] &= 0xF0; + data->temp[HYSTERSIS][sattr->index] |= (val & 0xF) << 4; + } else { + data->temp[HYSTERSIS][sattr->index] &= 0x0F; + data->temp[HYSTERSIS][sattr->index] |= (val & 0xF); + } + + out = data->temp[HYSTERSIS][sattr->index]; + break; + + default: + data->temp[sattr->nr][sattr->index] = temp2reg(data, val); + + /* We maintain an extra 2 digits of precision for simplicity + * - shift those back off before writing the value */ + out = (u8) (data->temp[sattr->nr][sattr->index] >> 2); + } + + switch (sattr->nr) { + case MIN: + reg = TEMP_MIN_REG(sattr->index); + break; + case MAX: + reg = TEMP_MAX_REG(sattr->index); + break; + case OFFSET: + reg = TEMP_OFFSET_REG(sattr->index); + break; + case AUTOMIN: + reg = TEMP_TMIN_REG(sattr->index); + break; + case THERM: + reg = TEMP_THERM_REG(sattr->index); + break; + case HYSTERSIS: + if (sattr->index != 2) + reg = REG_REMOTE1_HYSTERSIS; + else + reg = REG_REMOTE2_HYSTERSIS; + + break; + } + + i2c_smbus_write_byte_data(client, reg, out); + + mutex_unlock(&data->lock); + return count; +} + +/* Table of autorange values - the user will write the value in millidegrees, + and we'll convert it */ +static const int autorange_table[] = { + 2000, 2500, 3330, 4000, 5000, 6670, 8000, + 10000, 13330, 16000, 20000, 26670, 32000, 40000, + 53330, 80000 +}; + +static ssize_t show_point2(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct adt7475_data *data = adt7475_update_device(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + int out, val; + + mutex_lock(&data->lock); + out = (data->range[sattr->index] >> 4) & 0x0F; + val = reg2temp(data, data->temp[AUTOMIN][sattr->index]); + mutex_unlock(&data->lock); + + return sprintf(buf, "%d\n", val + autorange_table[out]); +} + +static ssize_t set_point2(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct adt7475_data *data = i2c_get_clientdata(client); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + int temp; + long val; + + if (strict_strtol(buf, 10, &val)) + return -EINVAL; + + mutex_lock(&data->lock); + + /* Get a fresh copy of the needed registers */ + data->config5 = adt7475_read(REG_CONFIG5); + data->temp[AUTOMIN][sattr->index] = + adt7475_read(TEMP_TMIN_REG(sattr->index)) << 2; + data->range[sattr->index] = + adt7475_read(TEMP_TRANGE_REG(sattr->index)); + + /* The user will write an absolute value, so subtract the start point + to figure the range */ + temp = reg2temp(data, data->temp[AUTOMIN][sattr->index]); + val = SENSORS_LIMIT(val, temp + autorange_table[0], + temp + autorange_table[ARRAY_SIZE(autorange_table) - 1]); + val -= temp; + + /* Find the nearest table entry to what the user wrote */ + val = find_nearest(val, autorange_table, ARRAY_SIZE(autorange_table)); + + data->range[sattr->index] &= ~0xF0; + data->range[sattr->index] |= val << 4; + + i2c_smbus_write_byte_data(client, TEMP_TRANGE_REG(sattr->index), + data->range[sattr->index]); + + mutex_unlock(&data->lock); + return count; +} + +static ssize_t show_tach(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct adt7475_data *data = adt7475_update_device(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + int out; + + if (sattr->nr == ALARM) + out = (data->alarms >> (sattr->index + 10)) & 1; + else + out = tach2rpm(data->tach[sattr->nr][sattr->index]); + + return sprintf(buf, "%d\n", out); +} + +static ssize_t set_tach(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + struct i2c_client *client = to_i2c_client(dev); + struct adt7475_data *data = i2c_get_clientdata(client); + unsigned long val; + + if (strict_strtoul(buf, 10, &val)) + return -EINVAL; + + mutex_lock(&data->lock); + + data->tach[MIN][sattr->index] = rpm2tach(val); + + adt7475_write_word(client, TACH_MIN_REG(sattr->index), + data->tach[MIN][sattr->index]); + + mutex_unlock(&data->lock); + return count; +} + +static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct adt7475_data *data = adt7475_update_device(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + + return sprintf(buf, "%d\n", data->pwm[sattr->nr][sattr->index]); +} + +static ssize_t show_pwmchan(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct adt7475_data *data = adt7475_update_device(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + + return sprintf(buf, "%d\n", data->pwmchan[sattr->index]); +} + +static ssize_t show_pwmctrl(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct adt7475_data *data = adt7475_update_device(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + + return sprintf(buf, "%d\n", data->pwmctl[sattr->index]); +} + +static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + struct i2c_client *client = to_i2c_client(dev); + struct adt7475_data *data = i2c_get_clientdata(client); + unsigned char reg = 0; + long val; + + if (strict_strtol(buf, 10, &val)) + return -EINVAL; + + mutex_lock(&data->lock); + + switch (sattr->nr) { + case INPUT: + /* Get a fresh value for CONTROL */ + data->pwm[CONTROL][sattr->index] = + adt7475_read(PWM_CONFIG_REG(sattr->index)); + + /* If we are not in manual mode, then we shouldn't allow + * the user to set the pwm speed */ + if (((data->pwm[CONTROL][sattr->index] >> 5) & 7) != 7) { + mutex_unlock(&data->lock); + return count; + } + + reg = PWM_REG(sattr->index); + break; + + case MIN: + reg = PWM_MIN_REG(sattr->index); + break; + + case MAX: + reg = PWM_MAX_REG(sattr->index); + break; + } + + data->pwm[sattr->nr][sattr->index] = SENSORS_LIMIT(val, 0, 0xFF); + i2c_smbus_write_byte_data(client, reg, + data->pwm[sattr->nr][sattr->index]); + + mutex_unlock(&data->lock); + + return count; +} + +/* Called by set_pwmctrl and set_pwmchan */ + +static int hw_set_pwm(struct i2c_client *client, int index, + unsigned int pwmctl, unsigned int pwmchan) +{ + struct adt7475_data *data = i2c_get_clientdata(client); + long val = 0; + + switch (pwmctl) { + case 0: + val = 0x03; /* Run at full speed */ + break; + case 1: + val = 0x07; /* Manual mode */ + break; + case 2: + switch (pwmchan) { + case 1: + /* Remote1 controls PWM */ + val = 0x00; + break; + case 2: + /* local controls PWM */ + val = 0x01; + break; + case 4: + /* remote2 controls PWM */ + val = 0x02; + break; + case 6: + /* local/remote2 control PWM */ + val = 0x05; + break; + case 7: + /* All three control PWM */ + val = 0x06; + break; + default: + return -EINVAL; + } + break; + default: + return -EINVAL; + } + + data->pwmctl[index] = pwmctl; + data->pwmchan[index] = pwmchan; + + data->pwm[CONTROL][index] &= ~0xE0; + data->pwm[CONTROL][index] |= (val & 7) << 5; + + i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index), + data->pwm[CONTROL][index]); + + return 0; +} + +static ssize_t set_pwmchan(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + struct i2c_client *client = to_i2c_client(dev); + struct adt7475_data *data = i2c_get_clientdata(client); + int r; + long val; + + if (strict_strtol(buf, 10, &val)) + return -EINVAL; + + mutex_lock(&data->lock); + /* Read Modify Write PWM values */ + adt7475_read_pwm(client, sattr->index); + r = hw_set_pwm(client, sattr->index, data->pwmctl[sattr->index], val); + if (r) + count = r; + mutex_unlock(&data->lock); + + return count; +} + +static ssize_t set_pwmctrl(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + struct i2c_client *client = to_i2c_client(dev); + struct adt7475_data *data = i2c_get_clientdata(client); + int r; + long val; + + if (strict_strtol(buf, 10, &val)) + return -EINVAL; + + mutex_lock(&data->lock); + /* Read Modify Write PWM values */ + adt7475_read_pwm(client, sattr->index); + r = hw_set_pwm(client, sattr->index, val, data->pwmchan[sattr->index]); + if (r) + count = r; + mutex_unlock(&data->lock); + + return count; +} + +/* List of frequencies for the PWM */ +static const int pwmfreq_table[] = { + 11, 14, 22, 29, 35, 44, 58, 88 +}; + +static ssize_t show_pwmfreq(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct adt7475_data *data = adt7475_update_device(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + + return sprintf(buf, "%d\n", + pwmfreq_table[data->range[sattr->index] & 7]); +} + +static ssize_t set_pwmfreq(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + struct i2c_client *client = to_i2c_client(dev); + struct adt7475_data *data = i2c_get_clientdata(client); + int out; + long val; + + if (strict_strtol(buf, 10, &val)) + return -EINVAL; + + out = find_nearest(val, pwmfreq_table, ARRAY_SIZE(pwmfreq_table)); + + mutex_lock(&data->lock); + + data->range[sattr->index] = + adt7475_read(TEMP_TRANGE_REG(sattr->index)); + data->range[sattr->index] &= ~7; + data->range[sattr->index] |= out; + + i2c_smbus_write_byte_data(client, TEMP_TRANGE_REG(sattr->index), + data->range[sattr->index]); + + mutex_unlock(&data->lock); + return count; +} + +static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_voltage, NULL, INPUT, 0); +static SENSOR_DEVICE_ATTR_2(in1_max, S_IRUGO | S_IWUSR, show_voltage, + set_voltage, MAX, 0); +static SENSOR_DEVICE_ATTR_2(in1_min, S_IRUGO | S_IWUSR, show_voltage, + set_voltage, MIN, 0); +static SENSOR_DEVICE_ATTR_2(in1_alarm, S_IRUGO, show_voltage, NULL, ALARM, 0); +static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_voltage, NULL, INPUT, 1); +static SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_voltage, + set_voltage, MAX, 1); +static SENSOR_DEVICE_ATTR_2(in2_min, S_IRUGO | S_IWUSR, show_voltage, + set_voltage, MIN, 1); +static SENSOR_DEVICE_ATTR_2(in2_alarm, S_IRUGO, show_voltage, NULL, ALARM, 1); +static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, INPUT, 0); +static SENSOR_DEVICE_ATTR_2(temp1_alarm, S_IRUGO, show_temp, NULL, ALARM, 0); +static SENSOR_DEVICE_ATTR_2(temp1_fault, S_IRUGO, show_temp, NULL, FAULT, 0); +static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, set_temp, + MAX, 0); +static SENSOR_DEVICE_ATTR_2(temp1_min, S_IRUGO | S_IWUSR, show_temp, set_temp, + MIN, 0); +static SENSOR_DEVICE_ATTR_2(temp1_offset, S_IRUGO | S_IWUSR, show_temp, + set_temp, OFFSET, 0); +static SENSOR_DEVICE_ATTR_2(temp1_auto_point1_temp, S_IRUGO | S_IWUSR, + show_temp, set_temp, AUTOMIN, 0); +static SENSOR_DEVICE_ATTR_2(temp1_auto_point2_temp, S_IRUGO | S_IWUSR, + show_point2, set_point2, 0, 0); +static SENSOR_DEVICE_ATTR_2(temp1_crit, S_IRUGO | S_IWUSR, show_temp, set_temp, + THERM, 0); +static SENSOR_DEVICE_ATTR_2(temp1_crit_hyst, S_IRUGO | S_IWUSR, show_temp, + set_temp, HYSTERSIS, 0); +static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, INPUT, 1); +static SENSOR_DEVICE_ATTR_2(temp2_alarm, S_IRUGO, show_temp, NULL, ALARM, 1); +static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, set_temp, + MAX, 1); +static SENSOR_DEVICE_ATTR_2(temp2_min, S_IRUGO | S_IWUSR, show_temp, set_temp, + MIN, 1); +static SENSOR_DEVICE_ATTR_2(temp2_offset, S_IRUGO | S_IWUSR, show_temp, + set_temp, OFFSET, 1); +static SENSOR_DEVICE_ATTR_2(temp2_auto_point1_temp, S_IRUGO | S_IWUSR, + show_temp, set_temp, AUTOMIN, 1); +static SENSOR_DEVICE_ATTR_2(temp2_auto_point2_temp, S_IRUGO | S_IWUSR, + show_point2, set_point2, 0, 1); +static SENSOR_DEVICE_ATTR_2(temp2_crit, S_IRUGO | S_IWUSR, show_temp, set_temp, + THERM, 1); +static SENSOR_DEVICE_ATTR_2(temp2_crit_hyst, S_IRUGO | S_IWUSR, show_temp, + set_temp, HYSTERSIS, 1); +static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, INPUT, 2); +static SENSOR_DEVICE_ATTR_2(temp3_alarm, S_IRUGO, show_temp, NULL, ALARM, 2); +static SENSOR_DEVICE_ATTR_2(temp3_fault, S_IRUGO, show_temp, NULL, FAULT, 2); +static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, set_temp, + MAX, 2); +static SENSOR_DEVICE_ATTR_2(temp3_min, S_IRUGO | S_IWUSR, show_temp, set_temp, + MIN, 2); +static SENSOR_DEVICE_ATTR_2(temp3_offset, S_IRUGO | S_IWUSR, show_temp, + set_temp, OFFSET, 2); +static SENSOR_DEVICE_ATTR_2(temp3_auto_point1_temp, S_IRUGO | S_IWUSR, + show_temp, set_temp, AUTOMIN, 2); +static SENSOR_DEVICE_ATTR_2(temp3_auto_point2_temp, S_IRUGO | S_IWUSR, + show_point2, set_point2, 0, 2); +static SENSOR_DEVICE_ATTR_2(temp3_crit, S_IRUGO | S_IWUSR, show_temp, set_temp, + THERM, 2); +static SENSOR_DEVICE_ATTR_2(temp3_crit_hyst, S_IRUGO | S_IWUSR, show_temp, + set_temp, HYSTERSIS, 2); +static SENSOR_DEVICE_ATTR_2(fan1_input, S_IRUGO, show_tach, NULL, INPUT, 0); +static SENSOR_DEVICE_ATTR_2(fan1_min, S_IRUGO | S_IWUSR, show_tach, set_tach, + MIN, 0); +static SENSOR_DEVICE_ATTR_2(fan1_alarm, S_IRUGO, show_tach, NULL, ALARM, 0); +static SENSOR_DEVICE_ATTR_2(fan2_input, S_IRUGO, show_tach, NULL, INPUT, 1); +static SENSOR_DEVICE_ATTR_2(fan2_min, S_IRUGO | S_IWUSR, show_tach, set_tach, + MIN, 1); +static SENSOR_DEVICE_ATTR_2(fan2_alarm, S_IRUGO, show_tach, NULL, ALARM, 1); +static SENSOR_DEVICE_ATTR_2(fan3_input, S_IRUGO, show_tach, NULL, INPUT, 2); +static SENSOR_DEVICE_ATTR_2(fan3_min, S_IRUGO | S_IWUSR, show_tach, set_tach, + MIN, 2); +static SENSOR_DEVICE_ATTR_2(fan3_alarm, S_IRUGO, show_tach, NULL, ALARM, 2); +static SENSOR_DEVICE_ATTR_2(fan4_input, S_IRUGO, show_tach, NULL, INPUT, 3); +static SENSOR_DEVICE_ATTR_2(fan4_min, S_IRUGO | S_IWUSR, show_tach, set_tach, + MIN, 3); +static SENSOR_DEVICE_ATTR_2(fan4_alarm, S_IRUGO, show_tach, NULL, ALARM, 3); +static SENSOR_DEVICE_ATTR_2(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT, + 0); +static SENSOR_DEVICE_ATTR_2(pwm1_freq, S_IRUGO | S_IWUSR, show_pwmfreq, + set_pwmfreq, INPUT, 0); +static SENSOR_DEVICE_ATTR_2(pwm1_enable, S_IRUGO | S_IWUSR, show_pwmctrl, + set_pwmctrl, INPUT, 0); +static SENSOR_DEVICE_ATTR_2(pwm1_auto_channel_temp, S_IRUGO | S_IWUSR, + show_pwmchan, set_pwmchan, INPUT, 0); +static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm, + set_pwm, MIN, 0); +static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm, + set_pwm, MAX, 0); +static SENSOR_DEVICE_ATTR_2(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT, + 1); +static SENSOR_DEVICE_ATTR_2(pwm2_freq, S_IRUGO | S_IWUSR, show_pwmfreq, + set_pwmfreq, INPUT, 1); +static SENSOR_DEVICE_ATTR_2(pwm2_enable, S_IRUGO | S_IWUSR, show_pwmctrl, + set_pwmctrl, INPUT, 1); +static SENSOR_DEVICE_ATTR_2(pwm2_auto_channel_temp, S_IRUGO | S_IWUSR, + show_pwmchan, set_pwmchan, INPUT, 1); +static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm, + set_pwm, MIN, 1); +static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm, + set_pwm, MAX, 1); +static SENSOR_DEVICE_ATTR_2(pwm3, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT, + 2); +static SENSOR_DEVICE_ATTR_2(pwm3_freq, S_IRUGO | S_IWUSR, show_pwmfreq, + set_pwmfreq, INPUT, 2); +static SENSOR_DEVICE_ATTR_2(pwm3_enable, S_IRUGO | S_IWUSR, show_pwmctrl, + set_pwmctrl, INPUT, 2); +static SENSOR_DEVICE_ATTR_2(pwm3_auto_channel_temp, S_IRUGO | S_IWUSR, + show_pwmchan, set_pwmchan, INPUT, 2); +static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm, + set_pwm, MIN, 2); +static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm, + set_pwm, MAX, 2); + +static struct attribute *adt7475_attrs[] = { + &sensor_dev_attr_in1_input.dev_attr.attr, + &sensor_dev_attr_in1_max.dev_attr.attr, + &sensor_dev_attr_in1_min.dev_attr.attr, + &sensor_dev_attr_in1_alarm.dev_attr.attr, + &sensor_dev_attr_in2_input.dev_attr.attr, + &sensor_dev_attr_in2_max.dev_attr.attr, + &sensor_dev_attr_in2_min.dev_attr.attr, + &sensor_dev_attr_in2_alarm.dev_attr.attr, + &sensor_dev_attr_temp1_input.dev_attr.attr, + &sensor_dev_attr_temp1_alarm.dev_attr.attr, + &sensor_dev_attr_temp1_fault.dev_attr.attr, + &sensor_dev_attr_temp1_max.dev_attr.attr, + &sensor_dev_attr_temp1_min.dev_attr.attr, + &sensor_dev_attr_temp1_offset.dev_attr.attr, + &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr, + &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr, + &sensor_dev_attr_temp1_crit.dev_attr.attr, + &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr, + &sensor_dev_attr_temp2_input.dev_attr.attr, + &sensor_dev_attr_temp2_alarm.dev_attr.attr, + &sensor_dev_attr_temp2_max.dev_attr.attr, + &sensor_dev_attr_temp2_min.dev_attr.attr, + &sensor_dev_attr_temp2_offset.dev_attr.attr, + &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr, + &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr, + &sensor_dev_attr_temp2_crit.dev_attr.attr, + &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr, + &sensor_dev_attr_temp3_input.dev_attr.attr, + &sensor_dev_attr_temp3_fault.dev_attr.attr, + &sensor_dev_attr_temp3_alarm.dev_attr.attr, + &sensor_dev_attr_temp3_max.dev_attr.attr, + &sensor_dev_attr_temp3_min.dev_attr.attr, + &sensor_dev_attr_temp3_offset.dev_attr.attr, + &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr, + &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr, + &sensor_dev_attr_temp3_crit.dev_attr.attr, + &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr, + &sensor_dev_attr_fan1_input.dev_attr.attr, + &sensor_dev_attr_fan1_min.dev_attr.attr, + &sensor_dev_attr_fan1_alarm.dev_attr.attr, + &sensor_dev_attr_fan2_input.dev_attr.attr, + &sensor_dev_attr_fan2_min.dev_attr.attr, + &sensor_dev_attr_fan2_alarm.dev_attr.attr, + &sensor_dev_attr_fan3_input.dev_attr.attr, + &sensor_dev_attr_fan3_min.dev_attr.attr, + &sensor_dev_attr_fan3_alarm.dev_attr.attr, + &sensor_dev_attr_fan4_input.dev_attr.attr, + &sensor_dev_attr_fan4_min.dev_attr.attr, + &sensor_dev_attr_fan4_alarm.dev_attr.attr, + &sensor_dev_attr_pwm1.dev_attr.attr, + &sensor_dev_attr_pwm1_freq.dev_attr.attr, + &sensor_dev_attr_pwm1_enable.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_channel_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, + &sensor_dev_attr_pwm2.dev_attr.attr, + &sensor_dev_attr_pwm2_freq.dev_attr.attr, + &sensor_dev_attr_pwm2_enable.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_channel_temp.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, + &sensor_dev_attr_pwm3.dev_attr.attr, + &sensor_dev_attr_pwm3_freq.dev_attr.attr, + &sensor_dev_attr_pwm3_enable.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_channel_temp.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, + NULL, +}; + +struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs }; + +static int adt7475_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info) +{ + struct i2c_adapter *adapter = client->adapter; + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) + return -ENODEV; + + if (kind <= 0) { + if (adt7475_read(REG_VENDID) != 0x41 || + adt7475_read(REG_DEVID) != 0x75) { + dev_err(&adapter->dev, + "Couldn't detect a adt7475 part at 0x%02x\n", + (unsigned int)client->addr); + return -ENODEV; + } + } + + strlcpy(info->type, adt7475_id[0].name, I2C_NAME_SIZE); + + return 0; +} + +static int adt7475_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct adt7475_data *data; + int i, ret = 0; + + data = kzalloc(sizeof(*data), GFP_KERNEL); + if (data == NULL) + return -ENOMEM; + + mutex_init(&data->lock); + i2c_set_clientdata(client, data); + + /* Call adt7475_read_pwm for all pwm's as this will reprogram any + pwm's which are disabled to manual mode with 0% duty cycle */ + for (i = 0; i < ADT7475_PWM_COUNT; i++) + adt7475_read_pwm(client, i); + + ret = sysfs_create_group(&client->dev.kobj, &adt7475_attr_group); + if (ret) + goto efree; + + data->hwmon_dev = hwmon_device_register(&client->dev); + if (IS_ERR(data->hwmon_dev)) { + ret = PTR_ERR(data->hwmon_dev); + goto eremove; + } + + return 0; + +eremove: + sysfs_remove_group(&client->dev.kobj, &adt7475_attr_group); +efree: + kfree(data); + return ret; +} + +static int adt7475_remove(struct i2c_client *client) +{ + struct adt7475_data *data = i2c_get_clientdata(client); + + hwmon_device_unregister(data->hwmon_dev); + sysfs_remove_group(&client->dev.kobj, &adt7475_attr_group); + kfree(data); + + return 0; +} + +static struct i2c_driver adt7475_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "adt7475", + }, + .probe = adt7475_probe, + .remove = adt7475_remove, + .id_table = adt7475_id, + .detect = adt7475_detect, + .address_data = &addr_data, +}; + +static void adt7475_read_hystersis(struct i2c_client *client) +{ + struct adt7475_data *data = i2c_get_clientdata(client); + + data->temp[HYSTERSIS][0] = (u16) adt7475_read(REG_REMOTE1_HYSTERSIS); + data->temp[HYSTERSIS][1] = data->temp[HYSTERSIS][0]; + data->temp[HYSTERSIS][2] = (u16) adt7475_read(REG_REMOTE2_HYSTERSIS); +} + +static void adt7475_read_pwm(struct i2c_client *client, int index) +{ + struct adt7475_data *data = i2c_get_clientdata(client); + unsigned int v; + + data->pwm[CONTROL][index] = adt7475_read(PWM_CONFIG_REG(index)); + + /* Figure out the internal value for pwmctrl and pwmchan + based on the current settings */ + v = (data->pwm[CONTROL][index] >> 5) & 7; + + if (v == 3) + data->pwmctl[index] = 0; + else if (v == 7) + data->pwmctl[index] = 1; + else if (v == 4) { + /* The fan is disabled - we don't want to + support that, so change to manual mode and + set the duty cycle to 0 instead + */ + data->pwm[INPUT][index] = 0; + data->pwm[CONTROL][index] &= ~0xE0; + data->pwm[CONTROL][index] |= (7 << 5); + + i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index), + data->pwm[INPUT][index]); + + i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index), + data->pwm[CONTROL][index]); + + data->pwmctl[index] = 1; + } else { + data->pwmctl[index] = 2; + + switch (v) { + case 0: + data->pwmchan[index] = 1; + break; + case 1: + data->pwmchan[index] = 2; + break; + case 2: + data->pwmchan[index] = 4; + break; + case 5: + data->pwmchan[index] = 6; + break; + case 6: + data->pwmchan[index] = 7; + break; + } + } +} + +static struct adt7475_data *adt7475_update_device(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct adt7475_data *data = i2c_get_clientdata(client); + u8 ext; + int i; + + mutex_lock(&data->lock); + + /* Measurement values update every 2 seconds */ + if (time_after(jiffies, data->measure_updated + HZ * 2) || + !data->valid) { + data->alarms = adt7475_read(REG_STATUS2) << 8; + data->alarms |= adt7475_read(REG_STATUS1); + + ext = adt7475_read(REG_EXTEND1); + for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) + data->voltage[INPUT][i] = + (adt7475_read(VOLTAGE_REG(i)) << 2) | + ((ext >> ((i + 1) * 2)) & 3); + + ext = adt7475_read(REG_EXTEND2); + for (i = 0; i < ADT7475_TEMP_COUNT; i++) + data->temp[INPUT][i] = + (adt7475_read(TEMP_REG(i)) << 2) | + ((ext >> ((i + 1) * 2)) & 3); + + for (i = 0; i < ADT7475_TACH_COUNT; i++) + data->tach[INPUT][i] = + adt7475_read_word(client, TACH_REG(i)); + + /* Updated by hw when in auto mode */ + for (i = 0; i < ADT7475_PWM_COUNT; i++) + data->pwm[INPUT][i] = adt7475_read(PWM_REG(i)); + + data->measure_updated = jiffies; + } + + /* Limits and settings, should never change update every 60 seconds */ + if (time_after(jiffies, data->limits_updated + HZ * 2) || + !data->valid) { + data->config5 = adt7475_read(REG_CONFIG5); + + for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) { + /* Adjust values so they match the input precision */ + data->voltage[MIN][i] = + adt7475_read(VOLTAGE_MIN_REG(i)) << 2; + data->voltage[MAX][i] = + adt7475_read(VOLTAGE_MAX_REG(i)) << 2; + } + + for (i = 0; i < ADT7475_TEMP_COUNT; i++) { + /* Adjust values so they match the input precision */ + data->temp[MIN][i] = + adt7475_read(TEMP_MIN_REG(i)) << 2; + data->temp[MAX][i] = + adt7475_read(TEMP_MAX_REG(i)) << 2; + data->temp[AUTOMIN][i] = + adt7475_read(TEMP_TMIN_REG(i)) << 2; + data->temp[THERM][i] = + adt7475_read(TEMP_THERM_REG(i)) << 2; + data->temp[OFFSET][i] = + adt7475_read(TEMP_OFFSET_REG(i)); + } + adt7475_read_hystersis(client); + + for (i = 0; i < ADT7475_TACH_COUNT; i++) + data->tach[MIN][i] = + adt7475_read_word(client, TACH_MIN_REG(i)); + + for (i = 0; i < ADT7475_PWM_COUNT; i++) { + data->pwm[MAX][i] = adt7475_read(PWM_MAX_REG(i)); + data->pwm[MIN][i] = adt7475_read(PWM_MIN_REG(i)); + /* Set the channel and control information */ + adt7475_read_pwm(client, i); + } + + data->range[0] = adt7475_read(TEMP_TRANGE_REG(0)); + data->range[1] = adt7475_read(TEMP_TRANGE_REG(1)); + data->range[2] = adt7475_read(TEMP_TRANGE_REG(2)); + + data->limits_updated = jiffies; + data->valid = 1; + } + + mutex_unlock(&data->lock); + + return data; +} + +static int __init sensors_adt7475_init(void) +{ + return i2c_add_driver(&adt7475_driver); +} + +static void __exit sensors_adt7475_exit(void) +{ + i2c_del_driver(&adt7475_driver); +} + +MODULE_AUTHOR("Advanced Micro Devices, Inc"); +MODULE_DESCRIPTION("adt7475 driver"); +MODULE_LICENSE("GPL"); + +module_init(sensors_adt7475_init); +module_exit(sensors_adt7475_exit); -- cgit v1.2.3 From 058943ddcb7cb307a0c406088c1e61f203d8b66f Mon Sep 17 00:00:00 2001 From: Alistair John Strachan Date: Thu, 15 Jan 2009 22:27:47 +0100 Subject: hwmon: (abituguru3) Match partial DMI board name strings The switch-over to using DMI board strings to identify abituguru3 compatible mainboards works most of the time, but sometimes the vendor has substantially modified the board string between BIOS revisions. We have found that the vendor chipset identification string (provided in brackets) changes frequently and is of no use to us. The rest of the board string sometimes changes in subtle ways, e.g. whitespace or variations in capitalization. The new comparison code checks only a part of the supplied DMI board string, trimming the bracketed content, whitespace, and ignoring case as necessary. This fixes a bug where an IP35 Pro running an early BIOS would not be detected without the force=1 module parameter, and also speculatively fixes other similiar issues. Signed-off-by: Alistair John Strachan Reported-by: Nick Pasich Cc: Hans de Goede Signed-off-by: Jean Delvare --- drivers/hwmon/abituguru3.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/hwmon/abituguru3.c b/drivers/hwmon/abituguru3.c index 70bb854086d..4914b34e6bc 100644 --- a/drivers/hwmon/abituguru3.c +++ b/drivers/hwmon/abituguru3.c @@ -279,7 +279,7 @@ static const struct abituguru3_motherboard_info abituguru3_motherboards[] = { { "OTES1 Fan", 36, 2, 60, 1, 0 }, { NULL, 0, 0, 0, 0, 0 } } }, - { 0x0011, "AT8 32X(ATI RD580-ULI M1575)", { + { 0x0011, "AT8 32X", { { "CPU Core", 0, 0, 10, 1, 0 }, { "DDR", 1, 0, 20, 1, 0 }, { "DDR VTT", 2, 0, 10, 1, 0 }, @@ -402,7 +402,7 @@ static const struct abituguru3_motherboard_info abituguru3_motherboards[] = { { "AUX3 Fan", 36, 2, 60, 1, 0 }, { NULL, 0, 0, 0, 0, 0 } } }, - { 0x0016, "AW9D-MAX (Intel i975-ICH7)", { + { 0x0016, "AW9D-MAX", { { "CPU Core", 0, 0, 10, 1, 0 }, { "DDR2", 1, 0, 20, 1, 0 }, { "DDR2 VTT", 2, 0, 10, 1, 0 }, @@ -509,7 +509,7 @@ static const struct abituguru3_motherboard_info abituguru3_motherboards[] = { { "AUX3 FAN", 36, 2, 60, 1, 0 }, { NULL, 0, 0, 0, 0, 0 } } }, - { 0x001A, "IP35 Pro(Intel P35-ICH9R)", { + { 0x001A, "IP35 Pro", { { "CPU Core", 0, 0, 10, 1, 0 }, { "DDR2", 1, 0, 20, 1, 0 }, { "DDR2 VTT", 2, 0, 10, 1, 0 }, @@ -1128,6 +1128,7 @@ static int __init abituguru3_dmi_detect(void) { const char *board_vendor, *board_name; int i, err = (force) ? 1 : -ENODEV; + size_t sublen; board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR); if (!board_vendor || strcmp(board_vendor, "http://www.abit.com.tw/")) @@ -1137,9 +1138,20 @@ static int __init abituguru3_dmi_detect(void) if (!board_name) return err; + /* At the moment, we don't care about the part of the vendor + * DMI string contained in brackets. Truncate the string at + * the first occurrence of a bracket. Trim any trailing space + * from the substring. + */ + sublen = strcspn(board_name, "("); + while (sublen > 0 && board_name[sublen - 1] == ' ') + sublen--; + for (i = 0; abituguru3_motherboards[i].id; i++) { const char *dmi_name = abituguru3_motherboards[i].dmi_name; - if (dmi_name && !strcmp(dmi_name, board_name)) + if (!dmi_name || strlen(dmi_name) != sublen) + continue; + if (!strncasecmp(board_name, dmi_name, sublen)) break; } -- cgit v1.2.3 From 3907a8def78a15cd91985c23a3e76b563f36929a Mon Sep 17 00:00:00 2001 From: Alistair John Strachan Date: Thu, 15 Jan 2009 22:27:48 +0100 Subject: hwmon: (abituguru3) Enable DMI probing feature on IN9 32X MAX Switch the IN9 32X MAX over from port probing to the preferred DMI probe method. Signed-off-by: Alistair John Strachan Tested-by: Paul Hartman Cc: Hans de Goede Signed-off-by: Jean Delvare --- drivers/hwmon/abituguru3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/hwmon/abituguru3.c b/drivers/hwmon/abituguru3.c index 4914b34e6bc..f948ed16e96 100644 --- a/drivers/hwmon/abituguru3.c +++ b/drivers/hwmon/abituguru3.c @@ -482,7 +482,7 @@ static const struct abituguru3_motherboard_info abituguru3_motherboards[] = { { "AUX3 Fan", 36, 2, 60, 1, 0 }, { NULL, 0, 0, 0, 0, 0 } } }, - { 0x0019, NULL /* Unknown, need DMI string */, { + { 0x0019, "IN9 32X MAX", { { "CPU Core", 7, 0, 10, 1, 0 }, { "DDR2", 13, 0, 20, 1, 0 }, { "DDR2 VTT", 14, 0, 10, 1, 0 }, -- cgit v1.2.3 From 46a5f173fc88ffc22651162033696d8a9fbcdc5c Mon Sep 17 00:00:00 2001 From: Alistair John Strachan Date: Thu, 15 Jan 2009 22:27:48 +0100 Subject: hwmon: (abituguru3) Fix CONFIG_DMI=n fallback to probe When CONFIG_DMI is not enabled, dmi detection should flag that no board could be detected (err=1) rather than another error condition (err<0). This fixes the fallback to manual probing for all motherboards, even those without DMI strings, when CONFIG_DMI=n. Signed-off-by: Alistair John Strachan Cc: Hans de Goede Signed-off-by: Jean Delvare --- drivers/hwmon/abituguru3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/hwmon/abituguru3.c b/drivers/hwmon/abituguru3.c index f948ed16e96..e52b38806d0 100644 --- a/drivers/hwmon/abituguru3.c +++ b/drivers/hwmon/abituguru3.c @@ -1165,7 +1165,7 @@ static int __init abituguru3_dmi_detect(void) static inline int abituguru3_dmi_detect(void) { - return -ENODEV; + return 1; } #endif /* CONFIG_DMI */ -- cgit v1.2.3