diff options
-rw-r--r-- | Documentation/hwmon/sch5627 | 22 | ||||
-rw-r--r-- | MAINTAINERS | 7 | ||||
-rw-r--r-- | drivers/hwmon/Kconfig | 9 | ||||
-rw-r--r-- | drivers/hwmon/Makefile | 1 | ||||
-rw-r--r-- | drivers/hwmon/sch5627.c | 857 |
5 files changed, 0 insertions, 896 deletions
diff --git a/Documentation/hwmon/sch5627 b/Documentation/hwmon/sch5627 deleted file mode 100644 index 446a054e4912..000000000000 --- a/Documentation/hwmon/sch5627 +++ /dev/null @@ -1,22 +0,0 @@ -Kernel driver sch5627 -===================== - -Supported chips: - * SMSC SCH5627 - Prefix: 'sch5627' - Addresses scanned: none, address read from Super I/O config space - Datasheet: Application Note available upon request - -Author: Hans de Goede <hdegoede@redhat.com> - - -Description ------------ - -SMSC SCH5627 Super I/O chips include complete hardware monitoring -capabilities. They can monitor up to 5 voltages, 4 fans and 8 temperatures. - -The hardware monitoring part of the SMSC SCH5627 is accessed by talking -through an embedded microcontroller. An application note describing the -protocol for communicating with the microcontroller is available upon -request. Please mail me if you want a copy. diff --git a/MAINTAINERS b/MAINTAINERS index eebbbfb0fa38..2b9de57848a5 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5765,13 +5765,6 @@ S: Supported F: Documentation/hwmon/emc2103 F: drivers/hwmon/emc2103.c -SMSC SCH5627 HARDWARE MONITOR DRIVER -M: Hans de Goede <hdegoede@redhat.com> -L: lm-sensors@lm-sensors.org -S: Supported -F: Documentation/hwmon/sch5627 -F: drivers/hwmon/sch5627.c - SMSC47B397 HARDWARE MONITOR DRIVER M: "Mark M. Hoffman" <mhoffman@lightlink.com> L: lm-sensors@lm-sensors.org diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 81131eda5544..898059086996 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -959,15 +959,6 @@ config SENSORS_SMSC47B397 This driver can also be built as a module. If so, the module will be called smsc47b397. -config SENSORS_SCH5627 - tristate "SMSC SCH5627" - help - If you say yes here you get support for the hardware monitoring - features of the SMSC SCH5627 Super-I/O chip. - - This driver can also be built as a module. If so, the module - will be called sch5627. - config SENSORS_ADS1015 tristate "Texas Instruments ADS1015" depends on I2C diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index b351e2bc4f78..01faebd87585 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -91,7 +91,6 @@ obj-$(CONFIG_SENSORS_PC87360) += pc87360.o obj-$(CONFIG_SENSORS_PC87427) += pc87427.o obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o obj-$(CONFIG_SENSORS_S3C) += s3c-hwmon.o -obj-$(CONFIG_SENSORS_SCH5627) += sch5627.o obj-$(CONFIG_SENSORS_SHT15) += sht15.o obj-$(CONFIG_SENSORS_SHT21) += sht21.o obj-$(CONFIG_SENSORS_SIS5595) += sis5595.o diff --git a/drivers/hwmon/sch5627.c b/drivers/hwmon/sch5627.c deleted file mode 100644 index 0001331f55fe..000000000000 --- a/drivers/hwmon/sch5627.c +++ /dev/null @@ -1,857 +0,0 @@ -/*************************************************************************** - * Copyright (C) 2010-2011 Hans de Goede <hdegoede@redhat.com> * - * * - * This program is free software; you can redistribute it and/or modify * - * it under the terms of the GNU General Public License as published by * - * the Free Software Foundation; either version 2 of the License, or * - * (at your option) any later version. * - * * - * This program is distributed in the hope that it will be useful, * - * but WITHOUT ANY WARRANTY; without even the implied warranty of * - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * - * GNU General Public License for more details. * - * * - * You should have received a copy of the GNU General Public License * - * along with this program; if not, write to the * - * Free Software Foundation, Inc., * - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * - ***************************************************************************/ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/jiffies.h> -#include <linux/platform_device.h> -#include <linux/hwmon.h> -#include <linux/hwmon-sysfs.h> -#include <linux/err.h> -#include <linux/mutex.h> -#include <linux/io.h> -#include <linux/acpi.h> - -#define DRVNAME "sch5627" -#define DEVNAME DRVNAME /* We only support one model */ - -#define SIO_SCH5627_EM_LD 0x0C /* Embedded Microcontroller LD */ -#define SIO_UNLOCK_KEY 0x55 /* Key to enable Super-I/O */ -#define SIO_LOCK_KEY 0xAA /* Key to disable Super-I/O */ - -#define SIO_REG_LDSEL 0x07 /* Logical device select */ -#define SIO_REG_DEVID 0x20 /* Device ID */ -#define SIO_REG_ENABLE 0x30 /* Logical device enable */ -#define SIO_REG_ADDR 0x66 /* Logical device address (2 bytes) */ - -#define SIO_SCH5627_ID 0xC6 /* Chipset ID */ - -#define REGION_LENGTH 9 - -#define SCH5627_HWMON_ID 0xa5 -#define SCH5627_COMPANY_ID 0x5c -#define SCH5627_PRIMARY_ID 0xa0 - -#define SCH5627_REG_BUILD_CODE 0x39 -#define SCH5627_REG_BUILD_ID 0x3a -#define SCH5627_REG_HWMON_ID 0x3c -#define SCH5627_REG_HWMON_REV 0x3d -#define SCH5627_REG_COMPANY_ID 0x3e -#define SCH5627_REG_PRIMARY_ID 0x3f -#define SCH5627_REG_CTRL 0x40 - -#define SCH5627_NO_TEMPS 8 -#define SCH5627_NO_FANS 4 -#define SCH5627_NO_IN 5 - -static const u16 SCH5627_REG_TEMP_MSB[SCH5627_NO_TEMPS] = { - 0x2B, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x180, 0x181 }; -static const u16 SCH5627_REG_TEMP_LSN[SCH5627_NO_TEMPS] = { - 0xE2, 0xE1, 0xE1, 0xE5, 0xE5, 0xE6, 0x182, 0x182 }; -static const u16 SCH5627_REG_TEMP_HIGH_NIBBLE[SCH5627_NO_TEMPS] = { - 0, 0, 1, 1, 0, 0, 0, 1 }; -static const u16 SCH5627_REG_TEMP_HIGH[SCH5627_NO_TEMPS] = { - 0x61, 0x57, 0x59, 0x5B, 0x5D, 0x5F, 0x184, 0x186 }; -static const u16 SCH5627_REG_TEMP_ABS[SCH5627_NO_TEMPS] = { - 0x9B, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x1A8, 0x1A9 }; - -static const u16 SCH5627_REG_FAN[SCH5627_NO_FANS] = { - 0x2C, 0x2E, 0x30, 0x32 }; -static const u16 SCH5627_REG_FAN_MIN[SCH5627_NO_FANS] = { - 0x62, 0x64, 0x66, 0x68 }; - -static const u16 SCH5627_REG_IN_MSB[SCH5627_NO_IN] = { - 0x22, 0x23, 0x24, 0x25, 0x189 }; -static const u16 SCH5627_REG_IN_LSN[SCH5627_NO_IN] = { - 0xE4, 0xE4, 0xE3, 0xE3, 0x18A }; -static const u16 SCH5627_REG_IN_HIGH_NIBBLE[SCH5627_NO_IN] = { - 1, 0, 1, 0, 1 }; -static const u16 SCH5627_REG_IN_FACTOR[SCH5627_NO_IN] = { - 10745, 3660, 9765, 10745, 3660 }; -static const char * const SCH5627_IN_LABELS[SCH5627_NO_IN] = { - "VCC", "VTT", "VBAT", "VTR", "V_IN" }; - -struct sch5627_data { - unsigned short addr; - struct device *hwmon_dev; - u8 temp_max[SCH5627_NO_TEMPS]; - u8 temp_crit[SCH5627_NO_TEMPS]; - u16 fan_min[SCH5627_NO_FANS]; - - struct mutex update_lock; - char valid; /* !=0 if following fields are valid */ - unsigned long last_updated; /* In jiffies */ - u16 temp[SCH5627_NO_TEMPS]; - u16 fan[SCH5627_NO_FANS]; - u16 in[SCH5627_NO_IN]; -}; - -static struct platform_device *sch5627_pdev; - -/* Super I/O functions */ -static inline int superio_inb(int base, int reg) -{ - outb(reg, base); - return inb(base + 1); -} - -static inline int superio_enter(int base) -{ - /* Don't step on other drivers' I/O space by accident */ - if (!request_muxed_region(base, 2, DRVNAME)) { - pr_err("I/O address 0x%04x already in use\n", base); - return -EBUSY; - } - - outb(SIO_UNLOCK_KEY, base); - - return 0; -} - -static inline void superio_select(int base, int ld) -{ - outb(SIO_REG_LDSEL, base); - outb(ld, base + 1); -} - -static inline void superio_exit(int base) -{ - outb(SIO_LOCK_KEY, base); - release_region(base, 2); -} - -static int sch5627_read_virtual_reg(struct sch5627_data *data, u16 reg) -{ - u8 val; - int i; - /* - * According to SMSC for the commands we use the maximum time for - * the EM to respond is 15 ms, but testing shows in practice it - * responds within 15-32 reads, so we first busy poll, and if - * that fails sleep a bit and try again until we are way past - * the 15 ms maximum response time. - */ - const int max_busy_polls = 64; - const int max_lazy_polls = 32; - - /* (Optional) Write-Clear the EC to Host Mailbox Register */ - val = inb(data->addr + 1); - outb(val, data->addr + 1); - - /* Set Mailbox Address Pointer to first location in Region 1 */ - outb(0x00, data->addr + 2); - outb(0x80, data->addr + 3); - - /* Write Request Packet Header */ - outb(0x02, data->addr + 4); /* Access Type: VREG read */ - outb(0x01, data->addr + 5); /* # of Entries: 1 Byte (8-bit) */ - outb(0x04, data->addr + 2); /* Mailbox AP to first data entry loc. */ - - /* Write Address field */ - outb(reg & 0xff, data->addr + 6); - outb(reg >> 8, data->addr + 7); - - /* Execute the Random Access Command */ - outb(0x01, data->addr); /* Write 01h to the Host-to-EC register */ - - /* EM Interface Polling "Algorithm" */ - for (i = 0; i < max_busy_polls + max_lazy_polls; i++) { - if (i >= max_busy_polls) - msleep(1); - /* Read Interrupt source Register */ - val = inb(data->addr + 8); - /* Write Clear the interrupt source bits */ - if (val) - outb(val, data->addr + 8); - /* Command Completed ? */ - if (val & 0x01) - break; - } - if (i == max_busy_polls + max_lazy_polls) { - pr_err("Max retries exceeded reading virtual " - "register 0x%04hx (%d)\n", reg, 1); - return -EIO; - } - - /* - * According to SMSC we may need to retry this, but sofar I've always - * seen this succeed in 1 try. - */ - for (i = 0; i < max_busy_polls; i++) { - /* Read EC-to-Host Register */ - val = inb(data->addr + 1); - /* Command Completed ? */ - if (val == 0x01) - break; - - if (i == 0) - pr_warn("EC reports: 0x%02x reading virtual register " - "0x%04hx\n", (unsigned int)val, reg); - } - if (i == max_busy_polls) { - pr_err("Max retries exceeded reading virtual " - "register 0x%04hx (%d)\n", reg, 2); - return -EIO; - } - - /* - * According to the SMSC app note we should now do: - * - * Set Mailbox Address Pointer to first location in Region 1 * - * outb(0x00, data->addr + 2); - * outb(0x80, data->addr + 3); - * - * But if we do that things don't work, so let's not. - */ - - /* Read Data from Mailbox */ - return inb(data->addr + 4); -} - -static int sch5627_read_virtual_reg16(struct sch5627_data *data, u16 reg) -{ - int lsb, msb; - - /* Read LSB first, this will cause the matching MSB to be latched */ - lsb = sch5627_read_virtual_reg(data, reg); - if (lsb < 0) - return lsb; - - msb = sch5627_read_virtual_reg(data, reg + 1); - if (msb < 0) - return msb; - - return lsb | (msb << 8); -} - -static int sch5627_read_virtual_reg12(struct sch5627_data *data, u16 msb_reg, - u16 lsn_reg, int high_nibble) -{ - int msb, lsn; - - /* Read MSB first, this will cause the matching LSN to be latched */ - msb = sch5627_read_virtual_reg(data, msb_reg); - if (msb < 0) - return msb; - - lsn = sch5627_read_virtual_reg(data, lsn_reg); - if (lsn < 0) - return lsn; - - if (high_nibble) - return (msb << 4) | (lsn >> 4); - else - return (msb << 4) | (lsn & 0x0f); -} - -static struct sch5627_data *sch5627_update_device(struct device *dev) -{ - struct sch5627_data *data = dev_get_drvdata(dev); - struct sch5627_data *ret = data; - int i, val; - - mutex_lock(&data->update_lock); - - /* Cache the values for 1 second */ - if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { - for (i = 0; i < SCH5627_NO_TEMPS; i++) { - val = sch5627_read_virtual_reg12(data, - SCH5627_REG_TEMP_MSB[i], - SCH5627_REG_TEMP_LSN[i], - SCH5627_REG_TEMP_HIGH_NIBBLE[i]); - if (unlikely(val < 0)) { - ret = ERR_PTR(val); - goto abort; - } - data->temp[i] = val; - } - - for (i = 0; i < SCH5627_NO_FANS; i++) { - val = sch5627_read_virtual_reg16(data, - SCH5627_REG_FAN[i]); - if (unlikely(val < 0)) { - ret = ERR_PTR(val); - goto abort; - } - data->fan[i] = val; - } - - for (i = 0; i < SCH5627_NO_IN; i++) { - val = sch5627_read_virtual_reg12(data, - SCH5627_REG_IN_MSB[i], - SCH5627_REG_IN_LSN[i], - SCH5627_REG_IN_HIGH_NIBBLE[i]); - if (unlikely(val < 0)) { - ret = ERR_PTR(val); - goto abort; - } - data->in[i] = val; - } - - data->last_updated = jiffies; - data->valid = 1; - } -abort: - mutex_unlock(&data->update_lock); - return ret; -} - -static int __devinit sch5627_read_limits(struct sch5627_data *data) -{ - int i, val; - - for (i = 0; i < SCH5627_NO_TEMPS; i++) { - /* - * Note what SMSC calls ABS, is what lm_sensors calls max - * (aka high), and HIGH is what lm_sensors calls crit. - */ - val = sch5627_read_virtual_reg(data, SCH5627_REG_TEMP_ABS[i]); - if (val < 0) - return val; - data->temp_max[i] = val; - - val = sch5627_read_virtual_reg(data, SCH5627_REG_TEMP_HIGH[i]); - if (val < 0) - return val; - data->temp_crit[i] = val; - } - for (i = 0; i < SCH5627_NO_FANS; i++) { - val = sch5627_read_virtual_reg16(data, SCH5627_REG_FAN_MIN[i]); - if (val < 0) - return val; - data->fan_min[i] = val; - } - - return 0; -} - -static int reg_to_temp(u16 reg) -{ - return (reg * 625) / 10 - 64000; -} - -static int reg_to_temp_limit(u8 reg) -{ - return (reg - 64) * 1000; -} - -static int reg_to_rpm(u16 reg) -{ - if (reg == 0) - return -EIO; - if (reg == 0xffff) - return 0; - - return 5400540 / reg; -} - -static ssize_t show_name(struct device *dev, struct device_attribute *devattr, - char *buf) -{ - return snprintf(buf, PAGE_SIZE, "%s\n", DEVNAME); -} - -static ssize_t show_temp(struct device *dev, struct device_attribute - *devattr, char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct sch5627_data *data = sch5627_update_device(dev); - int val; - - if (IS_ERR(data)) - return PTR_ERR(data); - - val = reg_to_temp(data->temp[attr->index]); - return snprintf(buf, PAGE_SIZE, "%d\n", val); -} - -static ssize_t show_temp_fault(struct device *dev, struct device_attribute - *devattr, char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct sch5627_data *data = sch5627_update_device(dev); - - if (IS_ERR(data)) - return PTR_ERR(data); - - return snprintf(buf, PAGE_SIZE, "%d\n", data->temp[attr->index] == 0); -} - -static ssize_t show_temp_max(struct device *dev, struct device_attribute - *devattr, char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct sch5627_data *data = dev_get_drvdata(dev); - int val; - - val = reg_to_temp_limit(data->temp_max[attr->index]); - return snprintf(buf, PAGE_SIZE, "%d\n", val); -} - -static ssize_t show_temp_crit(struct device *dev, struct device_attribute - *devattr, char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct sch5627_data *data = dev_get_drvdata(dev); - int val; - - val = reg_to_temp_limit(data->temp_crit[attr->index]); - return snprintf(buf, PAGE_SIZE, "%d\n", val); -} - -static ssize_t show_fan(struct device *dev, struct device_attribute - *devattr, char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct sch5627_data *data = sch5627_update_device(dev); - int val; - - if (IS_ERR(data)) - return PTR_ERR(data); - - val = reg_to_rpm(data->fan[attr->index]); - if (val < 0) - return val; - - return snprintf(buf, PAGE_SIZE, "%d\n", val); -} - -static ssize_t show_fan_fault(struct device *dev, struct device_attribute - *devattr, char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct sch5627_data *data = sch5627_update_device(dev); - - if (IS_ERR(data)) - return PTR_ERR(data); - - return snprintf(buf, PAGE_SIZE, "%d\n", - data->fan[attr->index] == 0xffff); -} - -static ssize_t show_fan_min(struct device *dev, struct device_attribute - *devattr, char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct sch5627_data *data = dev_get_drvdata(dev); - int val = reg_to_rpm(data->fan_min[attr->index]); - if (val < 0) - return val; - - return snprintf(buf, PAGE_SIZE, "%d\n", val); -} - -static ssize_t show_in(struct device *dev, struct device_attribute - *devattr, char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct sch5627_data *data = sch5627_update_device(dev); - int val; - - if (IS_ERR(data)) - return PTR_ERR(data); - - val = DIV_ROUND_CLOSEST( - data->in[attr->index] * SCH5627_REG_IN_FACTOR[attr->index], - 10000); - return snprintf(buf, PAGE_SIZE, "%d\n", val); -} - -static ssize_t show_in_label(struct device *dev, struct device_attribute - *devattr, char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - - return snprintf(buf, PAGE_SIZE, "%s\n", - SCH5627_IN_LABELS[attr->index]); -} - -static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); -static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); -static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); -static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2); -static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3); -static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_temp, NULL, 4); -static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, show_temp, NULL, 5); -static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO, show_temp, NULL, 6); -static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO, show_temp, NULL, 7); -static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0); -static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1); -static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2); -static SENSOR_DEVICE_ATTR(temp4_fault, S_IRUGO, show_temp_fault, NULL, 3); -static SENSOR_DEVICE_ATTR(temp5_fault, S_IRUGO, show_temp_fault, NULL, 4); -static SENSOR_DEVICE_ATTR(temp6_fault, S_IRUGO, show_temp_fault, NULL, 5); -static SENSOR_DEVICE_ATTR(temp7_fault, S_IRUGO, show_temp_fault, NULL, 6); -static SENSOR_DEVICE_ATTR(temp8_fault, S_IRUGO, show_temp_fault, NULL, 7); -static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp_max, NULL, 0); -static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO, show_temp_max, NULL, 1); -static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO, show_temp_max, NULL, 2); -static SENSOR_DEVICE_ATTR(temp4_max, S_IRUGO, show_temp_max, NULL, 3); -static SENSOR_DEVICE_ATTR(temp5_max, S_IRUGO, show_temp_max, NULL, 4); -static SENSOR_DEVICE_ATTR(temp6_max, S_IRUGO, show_temp_max, NULL, 5); -static SENSOR_DEVICE_ATTR(temp7_max, S_IRUGO, show_temp_max, NULL, 6); -static SENSOR_DEVICE_ATTR(temp8_max, S_IRUGO, show_temp_max, NULL, 7); -static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp_crit, NULL, 0); -static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp_crit, NULL, 1); -static SENSOR_DEVICE_ATTR(temp3_crit, S_IRUGO, show_temp_crit, NULL, 2); -static SENSOR_DEVICE_ATTR(temp4_crit, S_IRUGO, show_temp_crit, NULL, 3); -static SENSOR_DEVICE_ATTR(temp5_crit, S_IRUGO, show_temp_crit, NULL, 4); -static SENSOR_DEVICE_ATTR(temp6_crit, S_IRUGO, show_temp_crit, NULL, 5); -static SENSOR_DEVICE_ATTR(temp7_crit, S_IRUGO, show_temp_crit, NULL, 6); -static SENSOR_DEVICE_ATTR(temp8_crit, S_IRUGO, show_temp_crit, NULL, 7); - -static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); -static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1); -static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2); -static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3); -static SENSOR_DEVICE_ATTR(fan1_fault, S_IRUGO, show_fan_fault, NULL, 0); -static SENSOR_DEVICE_ATTR(fan2_fault, S_IRUGO, show_fan_fault, NULL, 1); -static SENSOR_DEVICE_ATTR(fan3_fault, S_IRUGO, show_fan_fault, NULL, 2); -static SENSOR_DEVICE_ATTR(fan4_fault, S_IRUGO, show_fan_fault, NULL, 3); -static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO, show_fan_min, NULL, 0); -static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO, show_fan_min, NULL, 1); -static SENSOR_DEVICE_ATTR(fan3_min, S_IRUGO, show_fan_min, NULL, 2); -static SENSOR_DEVICE_ATTR(fan4_min, S_IRUGO, show_fan_min, NULL, 3); - -static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0); -static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1); -static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2); -static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3); -static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4); -static SENSOR_DEVICE_ATTR(in0_label, S_IRUGO, show_in_label, NULL, 0); -static SENSOR_DEVICE_ATTR(in1_label, S_IRUGO, show_in_label, NULL, 1); -static SENSOR_DEVICE_ATTR(in2_label, S_IRUGO, show_in_label, NULL, 2); -static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_in_label, NULL, 3); - -static struct attribute *sch5627_attributes[] = { - &dev_attr_name.attr, - - &sensor_dev_attr_temp1_input.dev_attr.attr, - &sensor_dev_attr_temp2_input.dev_attr.attr, - &sensor_dev_attr_temp3_input.dev_attr.attr, - &sensor_dev_attr_temp4_input.dev_attr.attr, - &sensor_dev_attr_temp5_input.dev_attr.attr, - &sensor_dev_attr_temp6_input.dev_attr.attr, - &sensor_dev_attr_temp7_input.dev_attr.attr, - &sensor_dev_attr_temp8_input.dev_attr.attr, - &sensor_dev_attr_temp1_fault.dev_attr.attr, - &sensor_dev_attr_temp2_fault.dev_attr.attr, - &sensor_dev_attr_temp3_fault.dev_attr.attr, - &sensor_dev_attr_temp4_fault.dev_attr.attr, - &sensor_dev_attr_temp5_fault.dev_attr.attr, - &sensor_dev_attr_temp6_fault.dev_attr.attr, - &sensor_dev_attr_temp7_fault.dev_attr.attr, - &sensor_dev_attr_temp8_fault.dev_attr.attr, - &sensor_dev_attr_temp1_max.dev_attr.attr, - &sensor_dev_attr_temp2_max.dev_attr.attr, - &sensor_dev_attr_temp3_max.dev_attr.attr, - &sensor_dev_attr_temp4_max.dev_attr.attr, - &sensor_dev_attr_temp5_max.dev_attr.attr, - &sensor_dev_attr_temp6_max.dev_attr.attr, - &sensor_dev_attr_temp7_max.dev_attr.attr, - &sensor_dev_attr_temp8_max.dev_attr.attr, - &sensor_dev_attr_temp1_crit.dev_attr.attr, - &sensor_dev_attr_temp2_crit.dev_attr.attr, - &sensor_dev_attr_temp3_crit.dev_attr.attr, - &sensor_dev_attr_temp4_crit.dev_attr.attr, - &sensor_dev_attr_temp5_crit.dev_attr.attr, - &sensor_dev_attr_temp6_crit.dev_attr.attr, - &sensor_dev_attr_temp7_crit.dev_attr.attr, - &sensor_dev_attr_temp8_crit.dev_attr.attr, - - &sensor_dev_attr_fan1_input.dev_attr.attr, - &sensor_dev_attr_fan2_input.dev_attr.attr, - &sensor_dev_attr_fan3_input.dev_attr.attr, - &sensor_dev_attr_fan4_input.dev_attr.attr, - &sensor_dev_attr_fan1_fault.dev_attr.attr, - &sensor_dev_attr_fan2_fault.dev_attr.attr, - &sensor_dev_attr_fan3_fault.dev_attr.attr, - &sensor_dev_attr_fan4_fault.dev_attr.attr, - &sensor_dev_attr_fan1_min.dev_attr.attr, - &sensor_dev_attr_fan2_min.dev_attr.attr, - &sensor_dev_attr_fan3_min.dev_attr.attr, - &sensor_dev_attr_fan4_min.dev_attr.attr, - - &sensor_dev_attr_in0_input.dev_attr.attr, - &sensor_dev_attr_in1_input.dev_attr.attr, - &sensor_dev_attr_in2_input.dev_attr.attr, - &sensor_dev_attr_in3_input.dev_attr.attr, - &sensor_dev_attr_in4_input.dev_attr.attr, - &sensor_dev_attr_in0_label.dev_attr.attr, - &sensor_dev_attr_in1_label.dev_attr.attr, - &sensor_dev_attr_in2_label.dev_attr.attr, - &sensor_dev_attr_in3_label.dev_attr.attr, - /* No in4_label as in4 is a generic input pin */ - - NULL -}; - -static const struct attribute_group sch5627_group = { - .attrs = sch5627_attributes, -}; - -static int sch5627_remove(struct platform_device *pdev) -{ - struct sch5627_data *data = platform_get_drvdata(pdev); - - if (data->hwmon_dev) - hwmon_device_unregister(data->hwmon_dev); - - sysfs_remove_group(&pdev->dev.kobj, &sch5627_group); - platform_set_drvdata(pdev, NULL); - kfree(data); - - return 0; -} - -static int __devinit sch5627_probe(struct platform_device *pdev) -{ - struct sch5627_data *data; - int err, build_code, build_id, hwmon_rev, val; - - data = kzalloc(sizeof(struct sch5627_data), GFP_KERNEL); - if (!data) - return -ENOMEM; - - data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start; - mutex_init(&data->update_lock); - platform_set_drvdata(pdev, data); - - val = sch5627_read_virtual_reg(data, SCH5627_REG_HWMON_ID); - if (val < 0) { - err = val; - goto error; - } - if (val != SCH5627_HWMON_ID) { - pr_err("invalid %s id: 0x%02X (expected 0x%02X)\n", "hwmon", - val, SCH5627_HWMON_ID); - err = -ENODEV; - goto error; - } - - val = sch5627_read_virtual_reg(data, SCH5627_REG_COMPANY_ID); - if (val < 0) { - err = val; - goto error; - } - if (val != SCH5627_COMPANY_ID) { - pr_err("invalid %s id: 0x%02X (expected 0x%02X)\n", "company", - val, SCH5627_COMPANY_ID); - err = -ENODEV; - goto error; - } - - val = sch5627_read_virtual_reg(data, SCH5627_REG_PRIMARY_ID); - if (val < 0) { - err = val; - goto error; - } - if (val != SCH5627_PRIMARY_ID) { - pr_err("invalid %s id: 0x%02X (expected 0x%02X)\n", "primary", - val, SCH5627_PRIMARY_ID); - err = -ENODEV; - goto error; - } - - build_code = sch5627_read_virtual_reg(data, SCH5627_REG_BUILD_CODE); - if (build_code < 0) { - err = build_code; - goto error; - } - - build_id = sch5627_read_virtual_reg16(data, SCH5627_REG_BUILD_ID); - if (build_id < 0) { - err = build_id; - goto error; - } - - hwmon_rev = sch5627_read_virtual_reg(data, SCH5627_REG_HWMON_REV); - if (hwmon_rev < 0) { - err = hwmon_rev; - goto error; - } - - val = sch5627_read_virtual_reg(data, SCH5627_REG_CTRL); - if (val < 0) { - err = val; - goto error; - } - if (!(val & 0x01)) { - pr_err("hardware monitoring not enabled\n"); - err = -ENODEV; - goto error; - } - - /* - * Read limits, we do this only once as reading a register on - * the sch5627 is quite expensive (and they don't change). - */ - err = sch5627_read_limits(data); - if (err) - goto error; - - pr_info("firmware build: code 0x%02X, id 0x%04X, hwmon: rev 0x%02X\n", - build_code, build_id, hwmon_rev); - - /* Register sysfs interface files */ - err = sysfs_create_group(&pdev->dev.kobj, &sch5627_group); - if (err) - goto error; - - data->hwmon_dev = hwmon_device_register(&pdev->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - data->hwmon_dev = NULL; - goto error; - } - - return 0; - -error: - sch5627_remove(pdev); - return err; -} - -static int __init sch5627_find(int sioaddr, unsigned short *address) -{ - u8 devid; - int err = superio_enter(sioaddr); - if (err) - return err; - - devid = superio_inb(sioaddr, SIO_REG_DEVID); - if (devid != SIO_SCH5627_ID) { - pr_debug("Unsupported device id: 0x%02x\n", - (unsigned int)devid); - err = -ENODEV; - goto exit; - } - - superio_select(sioaddr, SIO_SCH5627_EM_LD); - - if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) { - pr_warn("Device not activated\n"); - err = -ENODEV; - goto exit; - } - - /* - * Warning the order of the low / high byte is the other way around - * as on most other superio devices!! - */ - *address = superio_inb(sioaddr, SIO_REG_ADDR) | - superio_inb(sioaddr, SIO_REG_ADDR + 1) << 8; - if (*address == 0) { - pr_warn("Base address not set\n"); - err = -ENODEV; - goto exit; - } - - pr_info("Found %s chip at %#hx\n", DEVNAME, *address); -exit: - superio_exit(sioaddr); - return err; -} - -static int __init sch5627_device_add(unsigned short address) -{ - struct resource res = { - .start = address, - .end = address + REGION_LENGTH - 1, - .flags = IORESOURCE_IO, - }; - int err; - - sch5627_pdev = platform_device_alloc(DRVNAME, address); - if (!sch5627_pdev) - return -ENOMEM; - - res.name = sch5627_pdev->name; - err = acpi_check_resource_conflict(&res); - if (err) - goto exit_device_put; - - err = platform_device_add_resources(sch5627_pdev, &res, 1); - if (err) { - pr_err("Device resource addition failed\n"); - goto exit_device_put; - } - - err = platform_device_add(sch5627_pdev); - if (err) { - pr_err("Device addition failed\n"); - goto exit_device_put; - } - - return 0; - -exit_device_put: - platform_device_put(sch5627_pdev); - - return err; -} - -static struct platform_driver sch5627_driver = { - .driver = { - .owner = THIS_MODULE, - .name = DRVNAME, - }, - .probe = sch5627_probe, - .remove = sch5627_remove, -}; - -static int __init sch5627_init(void) -{ - int err = -ENODEV; - unsigned short address; - - if (sch5627_find(0x4e, &address) && sch5627_find(0x2e, &address)) - goto exit; - - err = platform_driver_register(&sch5627_driver); - if (err) - goto exit; - - err = sch5627_device_add(address); - if (err) - goto exit_driver; - - return 0; - -exit_driver: - platform_driver_unregister(&sch5627_driver); -exit: - return err; -} - -static void __exit sch5627_exit(void) -{ - platform_device_unregister(sch5627_pdev); - platform_driver_unregister(&sch5627_driver); -} - -MODULE_DESCRIPTION("SMSC SCH5627 Hardware Monitoring Driver"); -MODULE_AUTHOR("Hans de Goede (hdegoede@redhat.com)"); -MODULE_LICENSE("GPL"); - -module_init(sch5627_init); -module_exit(sch5627_exit); |