![Jean Delvare](/assets/img/avatar_default.png)
The new-style w83791d driver implements the optional detect() callback to cover the use cases of the legacy driver. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Marc Hulsman <m.hulsman@tudelft.nl>
1333 lines
41 KiB
C
1333 lines
41 KiB
C
/*
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w83791d.c - Part of lm_sensors, Linux kernel modules for hardware
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monitoring
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Copyright (C) 2006-2007 Charles Spirakis <bezaur@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*
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Supports following chips:
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Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
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w83791d 10 5 3 3 0x71 0x5ca3 yes no
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The w83791d chip appears to be part way between the 83781d and the
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83792d. Thus, this file is derived from both the w83792d.c and
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w83781d.c files.
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The w83791g chip is the same as the w83791d but lead-free.
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/i2c.h>
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#include <linux/hwmon.h>
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#include <linux/hwmon-vid.h>
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#include <linux/hwmon-sysfs.h>
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#include <linux/err.h>
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#include <linux/mutex.h>
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#define NUMBER_OF_VIN 10
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#define NUMBER_OF_FANIN 5
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#define NUMBER_OF_TEMPIN 3
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/* Addresses to scan */
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static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
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I2C_CLIENT_END };
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/* Insmod parameters */
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I2C_CLIENT_INSMOD_1(w83791d);
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I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: "
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"{bus, clientaddr, subclientaddr1, subclientaddr2}");
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static int reset;
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module_param(reset, bool, 0);
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MODULE_PARM_DESC(reset, "Set to one to force a hardware chip reset");
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static int init;
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module_param(init, bool, 0);
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MODULE_PARM_DESC(init, "Set to one to force extra software initialization");
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/* The W83791D registers */
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static const u8 W83791D_REG_IN[NUMBER_OF_VIN] = {
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0x20, /* VCOREA in DataSheet */
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0x21, /* VINR0 in DataSheet */
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0x22, /* +3.3VIN in DataSheet */
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0x23, /* VDD5V in DataSheet */
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0x24, /* +12VIN in DataSheet */
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0x25, /* -12VIN in DataSheet */
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0x26, /* -5VIN in DataSheet */
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0xB0, /* 5VSB in DataSheet */
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0xB1, /* VBAT in DataSheet */
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0xB2 /* VINR1 in DataSheet */
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};
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static const u8 W83791D_REG_IN_MAX[NUMBER_OF_VIN] = {
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0x2B, /* VCOREA High Limit in DataSheet */
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0x2D, /* VINR0 High Limit in DataSheet */
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0x2F, /* +3.3VIN High Limit in DataSheet */
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0x31, /* VDD5V High Limit in DataSheet */
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0x33, /* +12VIN High Limit in DataSheet */
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0x35, /* -12VIN High Limit in DataSheet */
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0x37, /* -5VIN High Limit in DataSheet */
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0xB4, /* 5VSB High Limit in DataSheet */
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0xB6, /* VBAT High Limit in DataSheet */
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0xB8 /* VINR1 High Limit in DataSheet */
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};
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static const u8 W83791D_REG_IN_MIN[NUMBER_OF_VIN] = {
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0x2C, /* VCOREA Low Limit in DataSheet */
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0x2E, /* VINR0 Low Limit in DataSheet */
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0x30, /* +3.3VIN Low Limit in DataSheet */
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0x32, /* VDD5V Low Limit in DataSheet */
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0x34, /* +12VIN Low Limit in DataSheet */
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0x36, /* -12VIN Low Limit in DataSheet */
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0x38, /* -5VIN Low Limit in DataSheet */
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0xB5, /* 5VSB Low Limit in DataSheet */
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0xB7, /* VBAT Low Limit in DataSheet */
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0xB9 /* VINR1 Low Limit in DataSheet */
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};
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static const u8 W83791D_REG_FAN[NUMBER_OF_FANIN] = {
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0x28, /* FAN 1 Count in DataSheet */
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0x29, /* FAN 2 Count in DataSheet */
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0x2A, /* FAN 3 Count in DataSheet */
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0xBA, /* FAN 4 Count in DataSheet */
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0xBB, /* FAN 5 Count in DataSheet */
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};
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static const u8 W83791D_REG_FAN_MIN[NUMBER_OF_FANIN] = {
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0x3B, /* FAN 1 Count Low Limit in DataSheet */
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0x3C, /* FAN 2 Count Low Limit in DataSheet */
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0x3D, /* FAN 3 Count Low Limit in DataSheet */
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0xBC, /* FAN 4 Count Low Limit in DataSheet */
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0xBD, /* FAN 5 Count Low Limit in DataSheet */
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};
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static const u8 W83791D_REG_FAN_CFG[2] = {
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0x84, /* FAN 1/2 configuration */
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0x95, /* FAN 3 configuration */
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};
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static const u8 W83791D_REG_FAN_DIV[3] = {
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0x47, /* contains FAN1 and FAN2 Divisor */
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0x4b, /* contains FAN3 Divisor */
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0x5C, /* contains FAN4 and FAN5 Divisor */
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};
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#define W83791D_REG_BANK 0x4E
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#define W83791D_REG_TEMP2_CONFIG 0xC2
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#define W83791D_REG_TEMP3_CONFIG 0xCA
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static const u8 W83791D_REG_TEMP1[3] = {
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0x27, /* TEMP 1 in DataSheet */
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0x39, /* TEMP 1 Over in DataSheet */
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0x3A, /* TEMP 1 Hyst in DataSheet */
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};
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static const u8 W83791D_REG_TEMP_ADD[2][6] = {
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{0xC0, /* TEMP 2 in DataSheet */
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0xC1, /* TEMP 2(0.5 deg) in DataSheet */
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0xC5, /* TEMP 2 Over High part in DataSheet */
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0xC6, /* TEMP 2 Over Low part in DataSheet */
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0xC3, /* TEMP 2 Thyst High part in DataSheet */
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0xC4}, /* TEMP 2 Thyst Low part in DataSheet */
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{0xC8, /* TEMP 3 in DataSheet */
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0xC9, /* TEMP 3(0.5 deg) in DataSheet */
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0xCD, /* TEMP 3 Over High part in DataSheet */
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0xCE, /* TEMP 3 Over Low part in DataSheet */
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0xCB, /* TEMP 3 Thyst High part in DataSheet */
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0xCC} /* TEMP 3 Thyst Low part in DataSheet */
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};
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#define W83791D_REG_BEEP_CONFIG 0x4D
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static const u8 W83791D_REG_BEEP_CTRL[3] = {
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0x56, /* BEEP Control Register 1 */
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0x57, /* BEEP Control Register 2 */
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0xA3, /* BEEP Control Register 3 */
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};
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#define W83791D_REG_CONFIG 0x40
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#define W83791D_REG_VID_FANDIV 0x47
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#define W83791D_REG_DID_VID4 0x49
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#define W83791D_REG_WCHIPID 0x58
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#define W83791D_REG_CHIPMAN 0x4F
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#define W83791D_REG_PIN 0x4B
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#define W83791D_REG_I2C_SUBADDR 0x4A
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#define W83791D_REG_ALARM1 0xA9 /* realtime status register1 */
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#define W83791D_REG_ALARM2 0xAA /* realtime status register2 */
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#define W83791D_REG_ALARM3 0xAB /* realtime status register3 */
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#define W83791D_REG_VBAT 0x5D
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#define W83791D_REG_I2C_ADDR 0x48
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/* The SMBus locks itself. The Winbond W83791D has a bank select register
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(index 0x4e), but the driver only accesses registers in bank 0. Since
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we don't switch banks, we don't need any special code to handle
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locking access between bank switches */
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static inline int w83791d_read(struct i2c_client *client, u8 reg)
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{
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return i2c_smbus_read_byte_data(client, reg);
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}
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static inline int w83791d_write(struct i2c_client *client, u8 reg, u8 value)
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{
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return i2c_smbus_write_byte_data(client, reg, value);
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}
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/* The analog voltage inputs have 16mV LSB. Since the sysfs output is
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in mV as would be measured on the chip input pin, need to just
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multiply/divide by 16 to translate from/to register values. */
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#define IN_TO_REG(val) (SENSORS_LIMIT((((val) + 8) / 16), 0, 255))
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#define IN_FROM_REG(val) ((val) * 16)
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static u8 fan_to_reg(long rpm, int div)
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{
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if (rpm == 0)
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return 255;
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rpm = SENSORS_LIMIT(rpm, 1, 1000000);
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return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
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}
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#define FAN_FROM_REG(val,div) ((val) == 0 ? -1 : \
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((val) == 255 ? 0 : \
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1350000 / ((val) * (div))))
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/* for temp1 which is 8-bit resolution, LSB = 1 degree Celsius */
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#define TEMP1_FROM_REG(val) ((val) * 1000)
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#define TEMP1_TO_REG(val) ((val) <= -128000 ? -128 : \
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(val) >= 127000 ? 127 : \
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(val) < 0 ? ((val) - 500) / 1000 : \
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((val) + 500) / 1000)
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/* for temp2 and temp3 which are 9-bit resolution, LSB = 0.5 degree Celsius
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Assumes the top 8 bits are the integral amount and the bottom 8 bits
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are the fractional amount. Since we only have 0.5 degree resolution,
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the bottom 7 bits will always be zero */
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#define TEMP23_FROM_REG(val) ((val) / 128 * 500)
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#define TEMP23_TO_REG(val) ((val) <= -128000 ? 0x8000 : \
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(val) >= 127500 ? 0x7F80 : \
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(val) < 0 ? ((val) - 250) / 500 * 128 : \
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((val) + 250) / 500 * 128)
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#define BEEP_MASK_TO_REG(val) ((val) & 0xffffff)
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#define BEEP_MASK_FROM_REG(val) ((val) & 0xffffff)
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#define DIV_FROM_REG(val) (1 << (val))
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static u8 div_to_reg(int nr, long val)
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{
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int i;
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int max;
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/* first three fan's divisor max out at 8, rest max out at 128 */
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max = (nr < 3) ? 8 : 128;
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val = SENSORS_LIMIT(val, 1, max) >> 1;
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for (i = 0; i < 7; i++) {
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if (val == 0)
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break;
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val >>= 1;
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}
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return (u8) i;
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}
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struct w83791d_data {
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struct device *hwmon_dev;
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struct mutex update_lock;
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char valid; /* !=0 if following fields are valid */
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unsigned long last_updated; /* In jiffies */
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/* array of 2 pointers to subclients */
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struct i2c_client *lm75[2];
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/* volts */
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u8 in[NUMBER_OF_VIN]; /* Register value */
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u8 in_max[NUMBER_OF_VIN]; /* Register value */
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u8 in_min[NUMBER_OF_VIN]; /* Register value */
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/* fans */
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u8 fan[NUMBER_OF_FANIN]; /* Register value */
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u8 fan_min[NUMBER_OF_FANIN]; /* Register value */
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u8 fan_div[NUMBER_OF_FANIN]; /* Register encoding, shifted right */
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/* Temperature sensors */
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s8 temp1[3]; /* current, over, thyst */
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s16 temp_add[2][3]; /* fixed point value. Top 8 bits are the
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integral part, bottom 8 bits are the
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fractional part. We only use the top
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9 bits as the resolution is only
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to the 0.5 degree C...
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two sensors with three values
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(cur, over, hyst) */
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/* Misc */
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u32 alarms; /* realtime status register encoding,combined */
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u8 beep_enable; /* Global beep enable */
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u32 beep_mask; /* Mask off specific beeps */
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u8 vid; /* Register encoding, combined */
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u8 vrm; /* hwmon-vid */
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};
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static int w83791d_probe(struct i2c_client *client,
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const struct i2c_device_id *id);
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static int w83791d_detect(struct i2c_client *client, int kind,
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struct i2c_board_info *info);
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static int w83791d_remove(struct i2c_client *client);
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static int w83791d_read(struct i2c_client *client, u8 register);
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static int w83791d_write(struct i2c_client *client, u8 register, u8 value);
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static struct w83791d_data *w83791d_update_device(struct device *dev);
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#ifdef DEBUG
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static void w83791d_print_debug(struct w83791d_data *data, struct device *dev);
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#endif
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static void w83791d_init_client(struct i2c_client *client);
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static const struct i2c_device_id w83791d_id[] = {
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{ "w83791d", w83791d },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, w83791d_id);
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static struct i2c_driver w83791d_driver = {
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.class = I2C_CLASS_HWMON,
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.driver = {
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.name = "w83791d",
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},
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.probe = w83791d_probe,
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.remove = w83791d_remove,
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.id_table = w83791d_id,
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.detect = w83791d_detect,
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.address_data = &addr_data,
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};
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/* following are the sysfs callback functions */
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#define show_in_reg(reg) \
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static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
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char *buf) \
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{ \
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struct sensor_device_attribute *sensor_attr = \
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to_sensor_dev_attr(attr); \
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struct w83791d_data *data = w83791d_update_device(dev); \
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int nr = sensor_attr->index; \
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return sprintf(buf,"%d\n", IN_FROM_REG(data->reg[nr])); \
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}
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show_in_reg(in);
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show_in_reg(in_min);
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show_in_reg(in_max);
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#define store_in_reg(REG, reg) \
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static ssize_t store_in_##reg(struct device *dev, \
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struct device_attribute *attr, \
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const char *buf, size_t count) \
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{ \
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struct sensor_device_attribute *sensor_attr = \
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to_sensor_dev_attr(attr); \
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struct i2c_client *client = to_i2c_client(dev); \
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struct w83791d_data *data = i2c_get_clientdata(client); \
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unsigned long val = simple_strtoul(buf, NULL, 10); \
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int nr = sensor_attr->index; \
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\
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mutex_lock(&data->update_lock); \
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data->in_##reg[nr] = IN_TO_REG(val); \
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w83791d_write(client, W83791D_REG_IN_##REG[nr], data->in_##reg[nr]); \
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mutex_unlock(&data->update_lock); \
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\
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return count; \
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}
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store_in_reg(MIN, min);
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store_in_reg(MAX, max);
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static struct sensor_device_attribute sda_in_input[] = {
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SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0),
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SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
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SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
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SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3),
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SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4),
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SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5),
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SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6),
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SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7),
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SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8),
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SENSOR_ATTR(in9_input, S_IRUGO, show_in, NULL, 9),
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};
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static struct sensor_device_attribute sda_in_min[] = {
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SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0),
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SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1),
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SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2),
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SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 3),
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SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 4),
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SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 5),
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SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 6),
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SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 7),
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SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 8),
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SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 9),
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};
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static struct sensor_device_attribute sda_in_max[] = {
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SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0),
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SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1),
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SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2),
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SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 3),
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SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 4),
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SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 5),
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SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 6),
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SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 7),
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SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 8),
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SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 9),
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};
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static ssize_t show_beep(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct sensor_device_attribute *sensor_attr =
|
|
to_sensor_dev_attr(attr);
|
|
struct w83791d_data *data = w83791d_update_device(dev);
|
|
int bitnr = sensor_attr->index;
|
|
|
|
return sprintf(buf, "%d\n", (data->beep_mask >> bitnr) & 1);
|
|
}
|
|
|
|
static ssize_t store_beep(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct sensor_device_attribute *sensor_attr =
|
|
to_sensor_dev_attr(attr);
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83791d_data *data = i2c_get_clientdata(client);
|
|
int bitnr = sensor_attr->index;
|
|
int bytenr = bitnr / 8;
|
|
long val = simple_strtol(buf, NULL, 10) ? 1 : 0;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
|
|
data->beep_mask &= ~(0xff << (bytenr * 8));
|
|
data->beep_mask |= w83791d_read(client, W83791D_REG_BEEP_CTRL[bytenr])
|
|
<< (bytenr * 8);
|
|
|
|
data->beep_mask &= ~(1 << bitnr);
|
|
data->beep_mask |= val << bitnr;
|
|
|
|
w83791d_write(client, W83791D_REG_BEEP_CTRL[bytenr],
|
|
(data->beep_mask >> (bytenr * 8)) & 0xff);
|
|
|
|
mutex_unlock(&data->update_lock);
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct sensor_device_attribute *sensor_attr =
|
|
to_sensor_dev_attr(attr);
|
|
struct w83791d_data *data = w83791d_update_device(dev);
|
|
int bitnr = sensor_attr->index;
|
|
|
|
return sprintf(buf, "%d\n", (data->alarms >> bitnr) & 1);
|
|
}
|
|
|
|
/* Note: The bitmask for the beep enable/disable is different than
|
|
the bitmask for the alarm. */
|
|
static struct sensor_device_attribute sda_in_beep[] = {
|
|
SENSOR_ATTR(in0_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 0),
|
|
SENSOR_ATTR(in1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 13),
|
|
SENSOR_ATTR(in2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 2),
|
|
SENSOR_ATTR(in3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 3),
|
|
SENSOR_ATTR(in4_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 8),
|
|
SENSOR_ATTR(in5_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 9),
|
|
SENSOR_ATTR(in6_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 10),
|
|
SENSOR_ATTR(in7_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 16),
|
|
SENSOR_ATTR(in8_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 17),
|
|
SENSOR_ATTR(in9_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 14),
|
|
};
|
|
|
|
static struct sensor_device_attribute sda_in_alarm[] = {
|
|
SENSOR_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0),
|
|
SENSOR_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1),
|
|
SENSOR_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2),
|
|
SENSOR_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3),
|
|
SENSOR_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8),
|
|
SENSOR_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9),
|
|
SENSOR_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 10),
|
|
SENSOR_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19),
|
|
SENSOR_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20),
|
|
SENSOR_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 14),
|
|
};
|
|
|
|
#define show_fan_reg(reg) \
|
|
static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
|
|
char *buf) \
|
|
{ \
|
|
struct sensor_device_attribute *sensor_attr = \
|
|
to_sensor_dev_attr(attr); \
|
|
struct w83791d_data *data = w83791d_update_device(dev); \
|
|
int nr = sensor_attr->index; \
|
|
return sprintf(buf,"%d\n", \
|
|
FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
|
|
}
|
|
|
|
show_fan_reg(fan);
|
|
show_fan_reg(fan_min);
|
|
|
|
static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83791d_data *data = i2c_get_clientdata(client);
|
|
unsigned long val = simple_strtoul(buf, NULL, 10);
|
|
int nr = sensor_attr->index;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->fan_min[nr] = fan_to_reg(val, DIV_FROM_REG(data->fan_div[nr]));
|
|
w83791d_write(client, W83791D_REG_FAN_MIN[nr], data->fan_min[nr]);
|
|
mutex_unlock(&data->update_lock);
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
|
|
int nr = sensor_attr->index;
|
|
struct w83791d_data *data = w83791d_update_device(dev);
|
|
return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr]));
|
|
}
|
|
|
|
/* Note: we save and restore the fan minimum here, because its value is
|
|
determined in part by the fan divisor. This follows the principle of
|
|
least suprise; the user doesn't expect the fan minimum to change just
|
|
because the divisor changed. */
|
|
static ssize_t store_fan_div(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83791d_data *data = i2c_get_clientdata(client);
|
|
int nr = sensor_attr->index;
|
|
unsigned long min;
|
|
u8 tmp_fan_div;
|
|
u8 fan_div_reg;
|
|
int indx = 0;
|
|
u8 keep_mask = 0;
|
|
u8 new_shift = 0;
|
|
|
|
/* Save fan_min */
|
|
min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]));
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->fan_div[nr] = div_to_reg(nr, simple_strtoul(buf, NULL, 10));
|
|
|
|
switch (nr) {
|
|
case 0:
|
|
indx = 0;
|
|
keep_mask = 0xcf;
|
|
new_shift = 4;
|
|
break;
|
|
case 1:
|
|
indx = 0;
|
|
keep_mask = 0x3f;
|
|
new_shift = 6;
|
|
break;
|
|
case 2:
|
|
indx = 1;
|
|
keep_mask = 0x3f;
|
|
new_shift = 6;
|
|
break;
|
|
case 3:
|
|
indx = 2;
|
|
keep_mask = 0xf8;
|
|
new_shift = 0;
|
|
break;
|
|
case 4:
|
|
indx = 2;
|
|
keep_mask = 0x8f;
|
|
new_shift = 4;
|
|
break;
|
|
#ifdef DEBUG
|
|
default:
|
|
dev_warn(dev, "store_fan_div: Unexpected nr seen: %d\n", nr);
|
|
count = -EINVAL;
|
|
goto err_exit;
|
|
#endif
|
|
}
|
|
|
|
fan_div_reg = w83791d_read(client, W83791D_REG_FAN_DIV[indx])
|
|
& keep_mask;
|
|
tmp_fan_div = (data->fan_div[nr] << new_shift) & ~keep_mask;
|
|
|
|
w83791d_write(client, W83791D_REG_FAN_DIV[indx],
|
|
fan_div_reg | tmp_fan_div);
|
|
|
|
/* Restore fan_min */
|
|
data->fan_min[nr] = fan_to_reg(min, DIV_FROM_REG(data->fan_div[nr]));
|
|
w83791d_write(client, W83791D_REG_FAN_MIN[nr], data->fan_min[nr]);
|
|
|
|
#ifdef DEBUG
|
|
err_exit:
|
|
#endif
|
|
mutex_unlock(&data->update_lock);
|
|
|
|
return count;
|
|
}
|
|
|
|
static struct sensor_device_attribute sda_fan_input[] = {
|
|
SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
|
|
SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
|
|
SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
|
|
SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
|
|
SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4),
|
|
};
|
|
|
|
static struct sensor_device_attribute sda_fan_min[] = {
|
|
SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO,
|
|
show_fan_min, store_fan_min, 0),
|
|
SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO,
|
|
show_fan_min, store_fan_min, 1),
|
|
SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO,
|
|
show_fan_min, store_fan_min, 2),
|
|
SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO,
|
|
show_fan_min, store_fan_min, 3),
|
|
SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO,
|
|
show_fan_min, store_fan_min, 4),
|
|
};
|
|
|
|
static struct sensor_device_attribute sda_fan_div[] = {
|
|
SENSOR_ATTR(fan1_div, S_IWUSR | S_IRUGO,
|
|
show_fan_div, store_fan_div, 0),
|
|
SENSOR_ATTR(fan2_div, S_IWUSR | S_IRUGO,
|
|
show_fan_div, store_fan_div, 1),
|
|
SENSOR_ATTR(fan3_div, S_IWUSR | S_IRUGO,
|
|
show_fan_div, store_fan_div, 2),
|
|
SENSOR_ATTR(fan4_div, S_IWUSR | S_IRUGO,
|
|
show_fan_div, store_fan_div, 3),
|
|
SENSOR_ATTR(fan5_div, S_IWUSR | S_IRUGO,
|
|
show_fan_div, store_fan_div, 4),
|
|
};
|
|
|
|
static struct sensor_device_attribute sda_fan_beep[] = {
|
|
SENSOR_ATTR(fan1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 6),
|
|
SENSOR_ATTR(fan2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 7),
|
|
SENSOR_ATTR(fan3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 11),
|
|
SENSOR_ATTR(fan4_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 21),
|
|
SENSOR_ATTR(fan5_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 22),
|
|
};
|
|
|
|
static struct sensor_device_attribute sda_fan_alarm[] = {
|
|
SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6),
|
|
SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7),
|
|
SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11),
|
|
SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21),
|
|
SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22),
|
|
};
|
|
|
|
/* read/write the temperature1, includes measured value and limits */
|
|
static ssize_t show_temp1(struct device *dev, struct device_attribute *devattr,
|
|
char *buf)
|
|
{
|
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
|
struct w83791d_data *data = w83791d_update_device(dev);
|
|
return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[attr->index]));
|
|
}
|
|
|
|
static ssize_t store_temp1(struct device *dev, struct device_attribute *devattr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83791d_data *data = i2c_get_clientdata(client);
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
int nr = attr->index;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->temp1[nr] = TEMP1_TO_REG(val);
|
|
w83791d_write(client, W83791D_REG_TEMP1[nr], data->temp1[nr]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
/* read/write temperature2-3, includes measured value and limits */
|
|
static ssize_t show_temp23(struct device *dev, struct device_attribute *devattr,
|
|
char *buf)
|
|
{
|
|
struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
|
|
struct w83791d_data *data = w83791d_update_device(dev);
|
|
int nr = attr->nr;
|
|
int index = attr->index;
|
|
return sprintf(buf, "%d\n", TEMP23_FROM_REG(data->temp_add[nr][index]));
|
|
}
|
|
|
|
static ssize_t store_temp23(struct device *dev,
|
|
struct device_attribute *devattr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83791d_data *data = i2c_get_clientdata(client);
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
int nr = attr->nr;
|
|
int index = attr->index;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->temp_add[nr][index] = TEMP23_TO_REG(val);
|
|
w83791d_write(client, W83791D_REG_TEMP_ADD[nr][index * 2],
|
|
data->temp_add[nr][index] >> 8);
|
|
w83791d_write(client, W83791D_REG_TEMP_ADD[nr][index * 2 + 1],
|
|
data->temp_add[nr][index] & 0x80);
|
|
mutex_unlock(&data->update_lock);
|
|
|
|
return count;
|
|
}
|
|
|
|
static struct sensor_device_attribute_2 sda_temp_input[] = {
|
|
SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0),
|
|
SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0),
|
|
SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0),
|
|
};
|
|
|
|
static struct sensor_device_attribute_2 sda_temp_max[] = {
|
|
SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
|
|
show_temp1, store_temp1, 0, 1),
|
|
SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR,
|
|
show_temp23, store_temp23, 0, 1),
|
|
SENSOR_ATTR_2(temp3_max, S_IRUGO | S_IWUSR,
|
|
show_temp23, store_temp23, 1, 1),
|
|
};
|
|
|
|
static struct sensor_device_attribute_2 sda_temp_max_hyst[] = {
|
|
SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
|
|
show_temp1, store_temp1, 0, 2),
|
|
SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
|
|
show_temp23, store_temp23, 0, 2),
|
|
SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
|
|
show_temp23, store_temp23, 1, 2),
|
|
};
|
|
|
|
/* Note: The bitmask for the beep enable/disable is different than
|
|
the bitmask for the alarm. */
|
|
static struct sensor_device_attribute sda_temp_beep[] = {
|
|
SENSOR_ATTR(temp1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 4),
|
|
SENSOR_ATTR(temp2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 5),
|
|
SENSOR_ATTR(temp3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 1),
|
|
};
|
|
|
|
static struct sensor_device_attribute sda_temp_alarm[] = {
|
|
SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
|
|
SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
|
|
SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
|
|
};
|
|
|
|
/* get reatime status of all sensors items: voltage, temp, fan */
|
|
static ssize_t show_alarms_reg(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct w83791d_data *data = w83791d_update_device(dev);
|
|
return sprintf(buf, "%u\n", data->alarms);
|
|
}
|
|
|
|
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
|
|
|
|
/* Beep control */
|
|
|
|
#define GLOBAL_BEEP_ENABLE_SHIFT 15
|
|
#define GLOBAL_BEEP_ENABLE_MASK (1 << GLOBAL_BEEP_ENABLE_SHIFT)
|
|
|
|
static ssize_t show_beep_enable(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct w83791d_data *data = w83791d_update_device(dev);
|
|
return sprintf(buf, "%d\n", data->beep_enable);
|
|
}
|
|
|
|
static ssize_t show_beep_mask(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct w83791d_data *data = w83791d_update_device(dev);
|
|
return sprintf(buf, "%d\n", BEEP_MASK_FROM_REG(data->beep_mask));
|
|
}
|
|
|
|
|
|
static ssize_t store_beep_mask(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83791d_data *data = i2c_get_clientdata(client);
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
int i;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
|
|
/* The beep_enable state overrides any enabling request from
|
|
the masks */
|
|
data->beep_mask = BEEP_MASK_TO_REG(val) & ~GLOBAL_BEEP_ENABLE_MASK;
|
|
data->beep_mask |= (data->beep_enable << GLOBAL_BEEP_ENABLE_SHIFT);
|
|
|
|
val = data->beep_mask;
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
w83791d_write(client, W83791D_REG_BEEP_CTRL[i], (val & 0xff));
|
|
val >>= 8;
|
|
}
|
|
|
|
mutex_unlock(&data->update_lock);
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t store_beep_enable(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83791d_data *data = i2c_get_clientdata(client);
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
|
|
data->beep_enable = val ? 1 : 0;
|
|
|
|
/* Keep the full mask value in sync with the current enable */
|
|
data->beep_mask &= ~GLOBAL_BEEP_ENABLE_MASK;
|
|
data->beep_mask |= (data->beep_enable << GLOBAL_BEEP_ENABLE_SHIFT);
|
|
|
|
/* The global control is in the second beep control register
|
|
so only need to update that register */
|
|
val = (data->beep_mask >> 8) & 0xff;
|
|
|
|
w83791d_write(client, W83791D_REG_BEEP_CTRL[1], val);
|
|
|
|
mutex_unlock(&data->update_lock);
|
|
|
|
return count;
|
|
}
|
|
|
|
static struct sensor_device_attribute sda_beep_ctrl[] = {
|
|
SENSOR_ATTR(beep_enable, S_IRUGO | S_IWUSR,
|
|
show_beep_enable, store_beep_enable, 0),
|
|
SENSOR_ATTR(beep_mask, S_IRUGO | S_IWUSR,
|
|
show_beep_mask, store_beep_mask, 1)
|
|
};
|
|
|
|
/* cpu voltage regulation information */
|
|
static ssize_t show_vid_reg(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct w83791d_data *data = w83791d_update_device(dev);
|
|
return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
|
|
}
|
|
|
|
static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
|
|
|
|
static ssize_t show_vrm_reg(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct w83791d_data *data = dev_get_drvdata(dev);
|
|
return sprintf(buf, "%d\n", data->vrm);
|
|
}
|
|
|
|
static ssize_t store_vrm_reg(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct w83791d_data *data = dev_get_drvdata(dev);
|
|
|
|
/* No lock needed as vrm is internal to the driver
|
|
(not read from a chip register) and so is not
|
|
updated in w83791d_update_device() */
|
|
data->vrm = simple_strtoul(buf, NULL, 10);
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
|
|
|
|
#define IN_UNIT_ATTRS(X) \
|
|
&sda_in_input[X].dev_attr.attr, \
|
|
&sda_in_min[X].dev_attr.attr, \
|
|
&sda_in_max[X].dev_attr.attr, \
|
|
&sda_in_beep[X].dev_attr.attr, \
|
|
&sda_in_alarm[X].dev_attr.attr
|
|
|
|
#define FAN_UNIT_ATTRS(X) \
|
|
&sda_fan_input[X].dev_attr.attr, \
|
|
&sda_fan_min[X].dev_attr.attr, \
|
|
&sda_fan_div[X].dev_attr.attr, \
|
|
&sda_fan_beep[X].dev_attr.attr, \
|
|
&sda_fan_alarm[X].dev_attr.attr
|
|
|
|
#define TEMP_UNIT_ATTRS(X) \
|
|
&sda_temp_input[X].dev_attr.attr, \
|
|
&sda_temp_max[X].dev_attr.attr, \
|
|
&sda_temp_max_hyst[X].dev_attr.attr, \
|
|
&sda_temp_beep[X].dev_attr.attr, \
|
|
&sda_temp_alarm[X].dev_attr.attr
|
|
|
|
static struct attribute *w83791d_attributes[] = {
|
|
IN_UNIT_ATTRS(0),
|
|
IN_UNIT_ATTRS(1),
|
|
IN_UNIT_ATTRS(2),
|
|
IN_UNIT_ATTRS(3),
|
|
IN_UNIT_ATTRS(4),
|
|
IN_UNIT_ATTRS(5),
|
|
IN_UNIT_ATTRS(6),
|
|
IN_UNIT_ATTRS(7),
|
|
IN_UNIT_ATTRS(8),
|
|
IN_UNIT_ATTRS(9),
|
|
FAN_UNIT_ATTRS(0),
|
|
FAN_UNIT_ATTRS(1),
|
|
FAN_UNIT_ATTRS(2),
|
|
FAN_UNIT_ATTRS(3),
|
|
FAN_UNIT_ATTRS(4),
|
|
TEMP_UNIT_ATTRS(0),
|
|
TEMP_UNIT_ATTRS(1),
|
|
TEMP_UNIT_ATTRS(2),
|
|
&dev_attr_alarms.attr,
|
|
&sda_beep_ctrl[0].dev_attr.attr,
|
|
&sda_beep_ctrl[1].dev_attr.attr,
|
|
&dev_attr_cpu0_vid.attr,
|
|
&dev_attr_vrm.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group w83791d_group = {
|
|
.attrs = w83791d_attributes,
|
|
};
|
|
|
|
|
|
static int w83791d_detect_subclients(struct i2c_client *client)
|
|
{
|
|
struct i2c_adapter *adapter = client->adapter;
|
|
struct w83791d_data *data = i2c_get_clientdata(client);
|
|
int address = client->addr;
|
|
int i, id, err;
|
|
u8 val;
|
|
|
|
id = i2c_adapter_id(adapter);
|
|
if (force_subclients[0] == id && force_subclients[1] == address) {
|
|
for (i = 2; i <= 3; i++) {
|
|
if (force_subclients[i] < 0x48 ||
|
|
force_subclients[i] > 0x4f) {
|
|
dev_err(&client->dev,
|
|
"invalid subclient "
|
|
"address %d; must be 0x48-0x4f\n",
|
|
force_subclients[i]);
|
|
err = -ENODEV;
|
|
goto error_sc_0;
|
|
}
|
|
}
|
|
w83791d_write(client, W83791D_REG_I2C_SUBADDR,
|
|
(force_subclients[2] & 0x07) |
|
|
((force_subclients[3] & 0x07) << 4));
|
|
}
|
|
|
|
val = w83791d_read(client, W83791D_REG_I2C_SUBADDR);
|
|
if (!(val & 0x08)) {
|
|
data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7));
|
|
}
|
|
if (!(val & 0x80)) {
|
|
if ((data->lm75[0] != NULL) &&
|
|
((val & 0x7) == ((val >> 4) & 0x7))) {
|
|
dev_err(&client->dev,
|
|
"duplicate addresses 0x%x, "
|
|
"use force_subclient\n",
|
|
data->lm75[0]->addr);
|
|
err = -ENODEV;
|
|
goto error_sc_1;
|
|
}
|
|
data->lm75[1] = i2c_new_dummy(adapter,
|
|
0x48 + ((val >> 4) & 0x7));
|
|
}
|
|
|
|
return 0;
|
|
|
|
/* Undo inits in case of errors */
|
|
|
|
error_sc_1:
|
|
if (data->lm75[0] != NULL)
|
|
i2c_unregister_device(data->lm75[0]);
|
|
error_sc_0:
|
|
return err;
|
|
}
|
|
|
|
|
|
/* Return 0 if detection is successful, -ENODEV otherwise */
|
|
static int w83791d_detect(struct i2c_client *client, int kind,
|
|
struct i2c_board_info *info)
|
|
{
|
|
struct i2c_adapter *adapter = client->adapter;
|
|
int val1, val2;
|
|
unsigned short address = client->addr;
|
|
|
|
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* The w83791d may be stuck in some other bank than bank 0. This may
|
|
make reading other information impossible. Specify a force=...
|
|
parameter, and the Winbond will be reset to the right bank. */
|
|
if (kind < 0) {
|
|
if (w83791d_read(client, W83791D_REG_CONFIG) & 0x80) {
|
|
return -ENODEV;
|
|
}
|
|
val1 = w83791d_read(client, W83791D_REG_BANK);
|
|
val2 = w83791d_read(client, W83791D_REG_CHIPMAN);
|
|
/* Check for Winbond ID if in bank 0 */
|
|
if (!(val1 & 0x07)) {
|
|
/* yes it is Bank0 */
|
|
if (((!(val1 & 0x80)) && (val2 != 0xa3)) ||
|
|
((val1 & 0x80) && (val2 != 0x5c))) {
|
|
return -ENODEV;
|
|
}
|
|
}
|
|
/* If Winbond chip, address of chip and W83791D_REG_I2C_ADDR
|
|
should match */
|
|
if (w83791d_read(client, W83791D_REG_I2C_ADDR) != address) {
|
|
return -ENODEV;
|
|
}
|
|
}
|
|
|
|
/* We either have a force parameter or we have reason to
|
|
believe it is a Winbond chip. Either way, we want bank 0 and
|
|
Vendor ID high byte */
|
|
val1 = w83791d_read(client, W83791D_REG_BANK) & 0x78;
|
|
w83791d_write(client, W83791D_REG_BANK, val1 | 0x80);
|
|
|
|
/* Verify it is a Winbond w83791d */
|
|
if (kind <= 0) {
|
|
/* get vendor ID */
|
|
val2 = w83791d_read(client, W83791D_REG_CHIPMAN);
|
|
if (val2 != 0x5c) { /* the vendor is NOT Winbond */
|
|
return -ENODEV;
|
|
}
|
|
val1 = w83791d_read(client, W83791D_REG_WCHIPID);
|
|
if (val1 == 0x71) {
|
|
kind = w83791d;
|
|
} else {
|
|
if (kind == 0)
|
|
dev_warn(&adapter->dev,
|
|
"w83791d: Ignoring 'force' parameter "
|
|
"for unknown chip at adapter %d, "
|
|
"address 0x%02x\n",
|
|
i2c_adapter_id(adapter), address);
|
|
return -ENODEV;
|
|
}
|
|
}
|
|
|
|
strlcpy(info->type, "w83791d", I2C_NAME_SIZE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int w83791d_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct w83791d_data *data;
|
|
struct device *dev = &client->dev;
|
|
int i, val1, err;
|
|
|
|
#ifdef DEBUG
|
|
val1 = w83791d_read(client, W83791D_REG_DID_VID4);
|
|
dev_dbg(dev, "Device ID version: %d.%d (0x%02x)\n",
|
|
(val1 >> 5) & 0x07, (val1 >> 1) & 0x0f, val1);
|
|
#endif
|
|
|
|
data = kzalloc(sizeof(struct w83791d_data), GFP_KERNEL);
|
|
if (!data) {
|
|
err = -ENOMEM;
|
|
goto error0;
|
|
}
|
|
|
|
i2c_set_clientdata(client, data);
|
|
mutex_init(&data->update_lock);
|
|
|
|
err = w83791d_detect_subclients(client);
|
|
if (err)
|
|
goto error1;
|
|
|
|
/* Initialize the chip */
|
|
w83791d_init_client(client);
|
|
|
|
/* If the fan_div is changed, make sure there is a rational
|
|
fan_min in place */
|
|
for (i = 0; i < NUMBER_OF_FANIN; i++) {
|
|
data->fan_min[i] = w83791d_read(client, W83791D_REG_FAN_MIN[i]);
|
|
}
|
|
|
|
/* Register sysfs hooks */
|
|
if ((err = sysfs_create_group(&client->dev.kobj, &w83791d_group)))
|
|
goto error3;
|
|
|
|
/* Everything is ready, now register the working device */
|
|
data->hwmon_dev = hwmon_device_register(dev);
|
|
if (IS_ERR(data->hwmon_dev)) {
|
|
err = PTR_ERR(data->hwmon_dev);
|
|
goto error4;
|
|
}
|
|
|
|
return 0;
|
|
|
|
error4:
|
|
sysfs_remove_group(&client->dev.kobj, &w83791d_group);
|
|
error3:
|
|
if (data->lm75[0] != NULL)
|
|
i2c_unregister_device(data->lm75[0]);
|
|
if (data->lm75[1] != NULL)
|
|
i2c_unregister_device(data->lm75[1]);
|
|
error1:
|
|
kfree(data);
|
|
error0:
|
|
return err;
|
|
}
|
|
|
|
static int w83791d_remove(struct i2c_client *client)
|
|
{
|
|
struct w83791d_data *data = i2c_get_clientdata(client);
|
|
|
|
hwmon_device_unregister(data->hwmon_dev);
|
|
sysfs_remove_group(&client->dev.kobj, &w83791d_group);
|
|
|
|
if (data->lm75[0] != NULL)
|
|
i2c_unregister_device(data->lm75[0]);
|
|
if (data->lm75[1] != NULL)
|
|
i2c_unregister_device(data->lm75[1]);
|
|
|
|
kfree(data);
|
|
return 0;
|
|
}
|
|
|
|
static void w83791d_init_client(struct i2c_client *client)
|
|
{
|
|
struct w83791d_data *data = i2c_get_clientdata(client);
|
|
u8 tmp;
|
|
u8 old_beep;
|
|
|
|
/* The difference between reset and init is that reset
|
|
does a hard reset of the chip via index 0x40, bit 7,
|
|
but init simply forces certain registers to have "sane"
|
|
values. The hope is that the BIOS has done the right
|
|
thing (which is why the default is reset=0, init=0),
|
|
but if not, reset is the hard hammer and init
|
|
is the soft mallet both of which are trying to whack
|
|
things into place...
|
|
NOTE: The data sheet makes a distinction between
|
|
"power on defaults" and "reset by MR". As far as I can tell,
|
|
the hard reset puts everything into a power-on state so I'm
|
|
not sure what "reset by MR" means or how it can happen.
|
|
*/
|
|
if (reset || init) {
|
|
/* keep some BIOS settings when we... */
|
|
old_beep = w83791d_read(client, W83791D_REG_BEEP_CONFIG);
|
|
|
|
if (reset) {
|
|
/* ... reset the chip and ... */
|
|
w83791d_write(client, W83791D_REG_CONFIG, 0x80);
|
|
}
|
|
|
|
/* ... disable power-on abnormal beep */
|
|
w83791d_write(client, W83791D_REG_BEEP_CONFIG, old_beep | 0x80);
|
|
|
|
/* disable the global beep (not done by hard reset) */
|
|
tmp = w83791d_read(client, W83791D_REG_BEEP_CTRL[1]);
|
|
w83791d_write(client, W83791D_REG_BEEP_CTRL[1], tmp & 0xef);
|
|
|
|
if (init) {
|
|
/* Make sure monitoring is turned on for add-ons */
|
|
tmp = w83791d_read(client, W83791D_REG_TEMP2_CONFIG);
|
|
if (tmp & 1) {
|
|
w83791d_write(client, W83791D_REG_TEMP2_CONFIG,
|
|
tmp & 0xfe);
|
|
}
|
|
|
|
tmp = w83791d_read(client, W83791D_REG_TEMP3_CONFIG);
|
|
if (tmp & 1) {
|
|
w83791d_write(client, W83791D_REG_TEMP3_CONFIG,
|
|
tmp & 0xfe);
|
|
}
|
|
|
|
/* Start monitoring */
|
|
tmp = w83791d_read(client, W83791D_REG_CONFIG) & 0xf7;
|
|
w83791d_write(client, W83791D_REG_CONFIG, tmp | 0x01);
|
|
}
|
|
}
|
|
|
|
data->vrm = vid_which_vrm();
|
|
}
|
|
|
|
static struct w83791d_data *w83791d_update_device(struct device *dev)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83791d_data *data = i2c_get_clientdata(client);
|
|
int i, j;
|
|
u8 reg_array_tmp[3];
|
|
|
|
mutex_lock(&data->update_lock);
|
|
|
|
if (time_after(jiffies, data->last_updated + (HZ * 3))
|
|
|| !data->valid) {
|
|
dev_dbg(dev, "Starting w83791d device update\n");
|
|
|
|
/* Update the voltages measured value and limits */
|
|
for (i = 0; i < NUMBER_OF_VIN; i++) {
|
|
data->in[i] = w83791d_read(client,
|
|
W83791D_REG_IN[i]);
|
|
data->in_max[i] = w83791d_read(client,
|
|
W83791D_REG_IN_MAX[i]);
|
|
data->in_min[i] = w83791d_read(client,
|
|
W83791D_REG_IN_MIN[i]);
|
|
}
|
|
|
|
/* Update the fan counts and limits */
|
|
for (i = 0; i < NUMBER_OF_FANIN; i++) {
|
|
/* Update the Fan measured value and limits */
|
|
data->fan[i] = w83791d_read(client,
|
|
W83791D_REG_FAN[i]);
|
|
data->fan_min[i] = w83791d_read(client,
|
|
W83791D_REG_FAN_MIN[i]);
|
|
}
|
|
|
|
/* Update the fan divisor */
|
|
for (i = 0; i < 3; i++) {
|
|
reg_array_tmp[i] = w83791d_read(client,
|
|
W83791D_REG_FAN_DIV[i]);
|
|
}
|
|
data->fan_div[0] = (reg_array_tmp[0] >> 4) & 0x03;
|
|
data->fan_div[1] = (reg_array_tmp[0] >> 6) & 0x03;
|
|
data->fan_div[2] = (reg_array_tmp[1] >> 6) & 0x03;
|
|
data->fan_div[3] = reg_array_tmp[2] & 0x07;
|
|
data->fan_div[4] = (reg_array_tmp[2] >> 4) & 0x07;
|
|
|
|
/* Update the first temperature sensor */
|
|
for (i = 0; i < 3; i++) {
|
|
data->temp1[i] = w83791d_read(client,
|
|
W83791D_REG_TEMP1[i]);
|
|
}
|
|
|
|
/* Update the rest of the temperature sensors */
|
|
for (i = 0; i < 2; i++) {
|
|
for (j = 0; j < 3; j++) {
|
|
data->temp_add[i][j] =
|
|
(w83791d_read(client,
|
|
W83791D_REG_TEMP_ADD[i][j * 2]) << 8) |
|
|
w83791d_read(client,
|
|
W83791D_REG_TEMP_ADD[i][j * 2 + 1]);
|
|
}
|
|
}
|
|
|
|
/* Update the realtime status */
|
|
data->alarms =
|
|
w83791d_read(client, W83791D_REG_ALARM1) +
|
|
(w83791d_read(client, W83791D_REG_ALARM2) << 8) +
|
|
(w83791d_read(client, W83791D_REG_ALARM3) << 16);
|
|
|
|
/* Update the beep configuration information */
|
|
data->beep_mask =
|
|
w83791d_read(client, W83791D_REG_BEEP_CTRL[0]) +
|
|
(w83791d_read(client, W83791D_REG_BEEP_CTRL[1]) << 8) +
|
|
(w83791d_read(client, W83791D_REG_BEEP_CTRL[2]) << 16);
|
|
|
|
/* Extract global beep enable flag */
|
|
data->beep_enable =
|
|
(data->beep_mask >> GLOBAL_BEEP_ENABLE_SHIFT) & 0x01;
|
|
|
|
/* Update the cpu voltage information */
|
|
i = w83791d_read(client, W83791D_REG_VID_FANDIV);
|
|
data->vid = i & 0x0f;
|
|
data->vid |= (w83791d_read(client, W83791D_REG_DID_VID4) & 0x01)
|
|
<< 4;
|
|
|
|
data->last_updated = jiffies;
|
|
data->valid = 1;
|
|
}
|
|
|
|
mutex_unlock(&data->update_lock);
|
|
|
|
#ifdef DEBUG
|
|
w83791d_print_debug(data, dev);
|
|
#endif
|
|
|
|
return data;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
static void w83791d_print_debug(struct w83791d_data *data, struct device *dev)
|
|
{
|
|
int i = 0, j = 0;
|
|
|
|
dev_dbg(dev, "======Start of w83791d debug values======\n");
|
|
dev_dbg(dev, "%d set of Voltages: ===>\n", NUMBER_OF_VIN);
|
|
for (i = 0; i < NUMBER_OF_VIN; i++) {
|
|
dev_dbg(dev, "vin[%d] is: 0x%02x\n", i, data->in[i]);
|
|
dev_dbg(dev, "vin[%d] min is: 0x%02x\n", i, data->in_min[i]);
|
|
dev_dbg(dev, "vin[%d] max is: 0x%02x\n", i, data->in_max[i]);
|
|
}
|
|
dev_dbg(dev, "%d set of Fan Counts/Divisors: ===>\n", NUMBER_OF_FANIN);
|
|
for (i = 0; i < NUMBER_OF_FANIN; i++) {
|
|
dev_dbg(dev, "fan[%d] is: 0x%02x\n", i, data->fan[i]);
|
|
dev_dbg(dev, "fan[%d] min is: 0x%02x\n", i, data->fan_min[i]);
|
|
dev_dbg(dev, "fan_div[%d] is: 0x%02x\n", i, data->fan_div[i]);
|
|
}
|
|
|
|
/* temperature math is signed, but only print out the
|
|
bits that matter */
|
|
dev_dbg(dev, "%d set of Temperatures: ===>\n", NUMBER_OF_TEMPIN);
|
|
for (i = 0; i < 3; i++) {
|
|
dev_dbg(dev, "temp1[%d] is: 0x%02x\n", i, (u8) data->temp1[i]);
|
|
}
|
|
for (i = 0; i < 2; i++) {
|
|
for (j = 0; j < 3; j++) {
|
|
dev_dbg(dev, "temp_add[%d][%d] is: 0x%04x\n", i, j,
|
|
(u16) data->temp_add[i][j]);
|
|
}
|
|
}
|
|
|
|
dev_dbg(dev, "Misc Information: ===>\n");
|
|
dev_dbg(dev, "alarm is: 0x%08x\n", data->alarms);
|
|
dev_dbg(dev, "beep_mask is: 0x%08x\n", data->beep_mask);
|
|
dev_dbg(dev, "beep_enable is: %d\n", data->beep_enable);
|
|
dev_dbg(dev, "vid is: 0x%02x\n", data->vid);
|
|
dev_dbg(dev, "vrm is: 0x%02x\n", data->vrm);
|
|
dev_dbg(dev, "=======End of w83791d debug values========\n");
|
|
dev_dbg(dev, "\n");
|
|
}
|
|
#endif
|
|
|
|
static int __init sensors_w83791d_init(void)
|
|
{
|
|
return i2c_add_driver(&w83791d_driver);
|
|
}
|
|
|
|
static void __exit sensors_w83791d_exit(void)
|
|
{
|
|
i2c_del_driver(&w83791d_driver);
|
|
}
|
|
|
|
MODULE_AUTHOR("Charles Spirakis <bezaur@gmail.com>");
|
|
MODULE_DESCRIPTION("W83791D driver");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
module_init(sensors_w83791d_init);
|
|
module_exit(sensors_w83791d_exit);
|