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![Jean Delvare](/assets/img/avatar_default.png)
I2C_CLIENT_MODULE_PARM is overkill for force_subclients. We really only use 4 out of the 48 slots, so we're better defining a custom variable instead. This change saves 92 bytes of data for each of the five drivers affected. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Wolfgang Grandegger <wg@grandegger.com> Acked-by: Marc Hulsman <m.hulsman@tudelft.nl> Cc: Mark M. Hoffman <mhoffman@lightlink.com>
1654 lines
48 KiB
C
1654 lines
48 KiB
C
/*
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w83793.c - Linux kernel driver for hardware monitoring
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Copyright (C) 2006 Winbond Electronics Corp.
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Yuan Mu
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Rudolf Marek <r.marek@assembler.cz>
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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 - version 2.
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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., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 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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w83793 10 12 8 6 0x7b 0x5ca3 yes no
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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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/* 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(w83793);
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static unsigned short force_subclients[4];
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module_param_array(force_subclients, short, NULL, 0);
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MODULE_PARM_DESC(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 1 to reset chip, not recommended");
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/*
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Address 0x00, 0x0d, 0x0e, 0x0f in all three banks are reserved
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as ID, Bank Select registers
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*/
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#define W83793_REG_BANKSEL 0x00
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#define W83793_REG_VENDORID 0x0d
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#define W83793_REG_CHIPID 0x0e
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#define W83793_REG_DEVICEID 0x0f
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#define W83793_REG_CONFIG 0x40
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#define W83793_REG_MFC 0x58
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#define W83793_REG_FANIN_CTRL 0x5c
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#define W83793_REG_FANIN_SEL 0x5d
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#define W83793_REG_I2C_ADDR 0x0b
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#define W83793_REG_I2C_SUBADDR 0x0c
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#define W83793_REG_VID_INA 0x05
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#define W83793_REG_VID_INB 0x06
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#define W83793_REG_VID_LATCHA 0x07
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#define W83793_REG_VID_LATCHB 0x08
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#define W83793_REG_VID_CTRL 0x59
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static u16 W83793_REG_TEMP_MODE[2] = { 0x5e, 0x5f };
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#define TEMP_READ 0
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#define TEMP_CRIT 1
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#define TEMP_CRIT_HYST 2
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#define TEMP_WARN 3
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#define TEMP_WARN_HYST 4
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/* only crit and crit_hyst affect real-time alarm status
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current crit crit_hyst warn warn_hyst */
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static u16 W83793_REG_TEMP[][5] = {
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{0x1c, 0x78, 0x79, 0x7a, 0x7b},
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{0x1d, 0x7c, 0x7d, 0x7e, 0x7f},
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{0x1e, 0x80, 0x81, 0x82, 0x83},
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{0x1f, 0x84, 0x85, 0x86, 0x87},
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{0x20, 0x88, 0x89, 0x8a, 0x8b},
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{0x21, 0x8c, 0x8d, 0x8e, 0x8f},
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};
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#define W83793_REG_TEMP_LOW_BITS 0x22
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#define W83793_REG_BEEP(index) (0x53 + (index))
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#define W83793_REG_ALARM(index) (0x4b + (index))
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#define W83793_REG_CLR_CHASSIS 0x4a /* SMI MASK4 */
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#define W83793_REG_IRQ_CTRL 0x50
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#define W83793_REG_OVT_CTRL 0x51
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#define W83793_REG_OVT_BEEP 0x52
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#define IN_READ 0
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#define IN_MAX 1
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#define IN_LOW 2
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static const u16 W83793_REG_IN[][3] = {
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/* Current, High, Low */
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{0x10, 0x60, 0x61}, /* Vcore A */
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{0x11, 0x62, 0x63}, /* Vcore B */
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{0x12, 0x64, 0x65}, /* Vtt */
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{0x14, 0x6a, 0x6b}, /* VSEN1 */
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{0x15, 0x6c, 0x6d}, /* VSEN2 */
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{0x16, 0x6e, 0x6f}, /* +3VSEN */
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{0x17, 0x70, 0x71}, /* +12VSEN */
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{0x18, 0x72, 0x73}, /* 5VDD */
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{0x19, 0x74, 0x75}, /* 5VSB */
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{0x1a, 0x76, 0x77}, /* VBAT */
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};
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/* Low Bits of Vcore A/B Vtt Read/High/Low */
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static const u16 W83793_REG_IN_LOW_BITS[] = { 0x1b, 0x68, 0x69 };
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static u8 scale_in[] = { 2, 2, 2, 16, 16, 16, 8, 24, 24, 16 };
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static u8 scale_in_add[] = { 0, 0, 0, 0, 0, 0, 0, 150, 150, 0 };
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#define W83793_REG_FAN(index) (0x23 + 2 * (index)) /* High byte */
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#define W83793_REG_FAN_MIN(index) (0x90 + 2 * (index)) /* High byte */
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#define W83793_REG_PWM_DEFAULT 0xb2
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#define W83793_REG_PWM_ENABLE 0x207
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#define W83793_REG_PWM_UPTIME 0xc3 /* Unit in 0.1 second */
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#define W83793_REG_PWM_DOWNTIME 0xc4 /* Unit in 0.1 second */
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#define W83793_REG_TEMP_CRITICAL 0xc5
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#define PWM_DUTY 0
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#define PWM_START 1
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#define PWM_NONSTOP 2
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#define PWM_STOP_TIME 3
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#define W83793_REG_PWM(index, nr) (((nr) == 0 ? 0xb3 : \
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(nr) == 1 ? 0x220 : 0x218) + (index))
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/* bit field, fan1 is bit0, fan2 is bit1 ... */
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#define W83793_REG_TEMP_FAN_MAP(index) (0x201 + (index))
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#define W83793_REG_TEMP_TOL(index) (0x208 + (index))
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#define W83793_REG_TEMP_CRUISE(index) (0x210 + (index))
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#define W83793_REG_PWM_STOP_TIME(index) (0x228 + (index))
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#define W83793_REG_SF2_TEMP(index, nr) (0x230 + ((index) << 4) + (nr))
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#define W83793_REG_SF2_PWM(index, nr) (0x238 + ((index) << 4) + (nr))
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static inline unsigned long FAN_FROM_REG(u16 val)
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{
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if ((val >= 0xfff) || (val == 0))
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return 0;
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return (1350000UL / val);
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}
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static inline u16 FAN_TO_REG(long rpm)
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{
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if (rpm <= 0)
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return 0x0fff;
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return SENSORS_LIMIT((1350000 + (rpm >> 1)) / rpm, 1, 0xffe);
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}
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static inline unsigned long TIME_FROM_REG(u8 reg)
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{
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return (reg * 100);
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}
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static inline u8 TIME_TO_REG(unsigned long val)
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{
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return SENSORS_LIMIT((val + 50) / 100, 0, 0xff);
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}
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static inline long TEMP_FROM_REG(s8 reg)
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{
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return (reg * 1000);
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}
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static inline s8 TEMP_TO_REG(long val, s8 min, s8 max)
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{
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return SENSORS_LIMIT((val + (val < 0 ? -500 : 500)) / 1000, min, max);
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}
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struct w83793_data {
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struct i2c_client *lm75[2];
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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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unsigned long last_nonvolatile; /* In jiffies, last time we update the
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nonvolatile registers */
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u8 bank;
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u8 vrm;
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u8 vid[2];
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u8 in[10][3]; /* Register value, read/high/low */
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u8 in_low_bits[3]; /* Additional resolution for VCore A/B Vtt */
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u16 has_fan; /* Only fan1- fan5 has own pins */
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u16 fan[12]; /* Register value combine */
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u16 fan_min[12]; /* Register value combine */
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s8 temp[6][5]; /* current, crit, crit_hyst,warn, warn_hyst */
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u8 temp_low_bits; /* Additional resolution TD1-TD4 */
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u8 temp_mode[2]; /* byte 0: Temp D1-D4 mode each has 2 bits
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byte 1: Temp R1,R2 mode, each has 1 bit */
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u8 temp_critical; /* If reached all fan will be at full speed */
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u8 temp_fan_map[6]; /* Temp controls which pwm fan, bit field */
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u8 has_pwm;
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u8 has_temp;
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u8 has_vid;
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u8 pwm_enable; /* Register value, each Temp has 1 bit */
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u8 pwm_uptime; /* Register value */
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u8 pwm_downtime; /* Register value */
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u8 pwm_default; /* All fan default pwm, next poweron valid */
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u8 pwm[8][3]; /* Register value */
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u8 pwm_stop_time[8];
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u8 temp_cruise[6];
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u8 alarms[5]; /* realtime status registers */
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u8 beeps[5];
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u8 beep_enable;
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u8 tolerance[3]; /* Temp tolerance(Smart Fan I/II) */
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u8 sf2_pwm[6][7]; /* Smart FanII: Fan duty cycle */
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u8 sf2_temp[6][7]; /* Smart FanII: Temp level point */
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};
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static u8 w83793_read_value(struct i2c_client *client, u16 reg);
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static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value);
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static int w83793_probe(struct i2c_client *client,
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const struct i2c_device_id *id);
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static int w83793_detect(struct i2c_client *client, int kind,
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struct i2c_board_info *info);
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static int w83793_remove(struct i2c_client *client);
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static void w83793_init_client(struct i2c_client *client);
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static void w83793_update_nonvolatile(struct device *dev);
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static struct w83793_data *w83793_update_device(struct device *dev);
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static const struct i2c_device_id w83793_id[] = {
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{ "w83793", w83793 },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, w83793_id);
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static struct i2c_driver w83793_driver = {
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.class = I2C_CLASS_HWMON,
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.driver = {
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.name = "w83793",
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},
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.probe = w83793_probe,
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.remove = w83793_remove,
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.id_table = w83793_id,
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.detect = w83793_detect,
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.address_data = &addr_data,
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};
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static ssize_t
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show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
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{
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struct w83793_data *data = dev_get_drvdata(dev);
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return sprintf(buf, "%d\n", data->vrm);
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}
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static ssize_t
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show_vid(struct device *dev, struct device_attribute *attr, char *buf)
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{
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struct w83793_data *data = w83793_update_device(dev);
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struct sensor_device_attribute_2 *sensor_attr =
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to_sensor_dev_attr_2(attr);
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int index = sensor_attr->index;
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return sprintf(buf, "%d\n", vid_from_reg(data->vid[index], data->vrm));
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}
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static ssize_t
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store_vrm(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct w83793_data *data = dev_get_drvdata(dev);
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data->vrm = simple_strtoul(buf, NULL, 10);
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return count;
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}
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#define ALARM_STATUS 0
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#define BEEP_ENABLE 1
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static ssize_t
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show_alarm_beep(struct device *dev, struct device_attribute *attr, char *buf)
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{
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struct w83793_data *data = w83793_update_device(dev);
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struct sensor_device_attribute_2 *sensor_attr =
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to_sensor_dev_attr_2(attr);
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int nr = sensor_attr->nr;
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int index = sensor_attr->index >> 3;
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int bit = sensor_attr->index & 0x07;
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u8 val;
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if (ALARM_STATUS == nr) {
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val = (data->alarms[index] >> (bit)) & 1;
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} else { /* BEEP_ENABLE */
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val = (data->beeps[index] >> (bit)) & 1;
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}
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return sprintf(buf, "%u\n", val);
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}
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static ssize_t
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store_beep(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct w83793_data *data = i2c_get_clientdata(client);
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struct sensor_device_attribute_2 *sensor_attr =
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to_sensor_dev_attr_2(attr);
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int index = sensor_attr->index >> 3;
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int shift = sensor_attr->index & 0x07;
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u8 beep_bit = 1 << shift;
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u8 val;
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val = simple_strtoul(buf, NULL, 10);
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if (val != 0 && val != 1)
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return -EINVAL;
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mutex_lock(&data->update_lock);
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data->beeps[index] = w83793_read_value(client, W83793_REG_BEEP(index));
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data->beeps[index] &= ~beep_bit;
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data->beeps[index] |= val << shift;
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w83793_write_value(client, W83793_REG_BEEP(index), data->beeps[index]);
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mutex_unlock(&data->update_lock);
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return count;
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}
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static ssize_t
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show_beep_enable(struct device *dev, struct device_attribute *attr, char *buf)
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{
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struct w83793_data *data = w83793_update_device(dev);
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return sprintf(buf, "%u\n", (data->beep_enable >> 1) & 0x01);
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}
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static ssize_t
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store_beep_enable(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct w83793_data *data = i2c_get_clientdata(client);
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u8 val = simple_strtoul(buf, NULL, 10);
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if (val != 0 && val != 1)
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return -EINVAL;
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mutex_lock(&data->update_lock);
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data->beep_enable = w83793_read_value(client, W83793_REG_OVT_BEEP)
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& 0xfd;
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data->beep_enable |= val << 1;
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w83793_write_value(client, W83793_REG_OVT_BEEP, data->beep_enable);
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mutex_unlock(&data->update_lock);
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return count;
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}
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/* Write any value to clear chassis alarm */
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static ssize_t
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store_chassis_clear(struct device *dev,
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struct device_attribute *attr, const char *buf,
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size_t count)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct w83793_data *data = i2c_get_clientdata(client);
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u8 val;
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mutex_lock(&data->update_lock);
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val = w83793_read_value(client, W83793_REG_CLR_CHASSIS);
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val |= 0x80;
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w83793_write_value(client, W83793_REG_CLR_CHASSIS, val);
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mutex_unlock(&data->update_lock);
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return count;
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}
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#define FAN_INPUT 0
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#define FAN_MIN 1
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static ssize_t
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show_fan(struct device *dev, struct device_attribute *attr, char *buf)
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{
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struct sensor_device_attribute_2 *sensor_attr =
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to_sensor_dev_attr_2(attr);
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int nr = sensor_attr->nr;
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int index = sensor_attr->index;
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struct w83793_data *data = w83793_update_device(dev);
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u16 val;
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if (FAN_INPUT == nr) {
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val = data->fan[index] & 0x0fff;
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} else {
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val = data->fan_min[index] & 0x0fff;
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}
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return sprintf(buf, "%lu\n", FAN_FROM_REG(val));
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}
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static ssize_t
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store_fan_min(struct device *dev, 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_2 *sensor_attr =
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to_sensor_dev_attr_2(attr);
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int index = sensor_attr->index;
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struct i2c_client *client = to_i2c_client(dev);
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struct w83793_data *data = i2c_get_clientdata(client);
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u16 val = FAN_TO_REG(simple_strtoul(buf, NULL, 10));
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mutex_lock(&data->update_lock);
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data->fan_min[index] = val;
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w83793_write_value(client, W83793_REG_FAN_MIN(index),
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(val >> 8) & 0xff);
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w83793_write_value(client, W83793_REG_FAN_MIN(index) + 1, val & 0xff);
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mutex_unlock(&data->update_lock);
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return count;
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}
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static ssize_t
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show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
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{
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struct sensor_device_attribute_2 *sensor_attr =
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to_sensor_dev_attr_2(attr);
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struct w83793_data *data = w83793_update_device(dev);
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u16 val;
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int nr = sensor_attr->nr;
|
|
int index = sensor_attr->index;
|
|
|
|
if (PWM_STOP_TIME == nr)
|
|
val = TIME_FROM_REG(data->pwm_stop_time[index]);
|
|
else
|
|
val = (data->pwm[index][nr] & 0x3f) << 2;
|
|
|
|
return sprintf(buf, "%d\n", val);
|
|
}
|
|
|
|
static ssize_t
|
|
store_pwm(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83793_data *data = i2c_get_clientdata(client);
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
int nr = sensor_attr->nr;
|
|
int index = sensor_attr->index;
|
|
u8 val;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
if (PWM_STOP_TIME == nr) {
|
|
val = TIME_TO_REG(simple_strtoul(buf, NULL, 10));
|
|
data->pwm_stop_time[index] = val;
|
|
w83793_write_value(client, W83793_REG_PWM_STOP_TIME(index),
|
|
val);
|
|
} else {
|
|
val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 0xff)
|
|
>> 2;
|
|
data->pwm[index][nr] =
|
|
w83793_read_value(client, W83793_REG_PWM(index, nr)) & 0xc0;
|
|
data->pwm[index][nr] |= val;
|
|
w83793_write_value(client, W83793_REG_PWM(index, nr),
|
|
data->pwm[index][nr]);
|
|
}
|
|
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t
|
|
show_temp(struct device *dev, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
int nr = sensor_attr->nr;
|
|
int index = sensor_attr->index;
|
|
struct w83793_data *data = w83793_update_device(dev);
|
|
long temp = TEMP_FROM_REG(data->temp[index][nr]);
|
|
|
|
if (TEMP_READ == nr && index < 4) { /* Only TD1-TD4 have low bits */
|
|
int low = ((data->temp_low_bits >> (index * 2)) & 0x03) * 250;
|
|
temp += temp > 0 ? low : -low;
|
|
}
|
|
return sprintf(buf, "%ld\n", temp);
|
|
}
|
|
|
|
static ssize_t
|
|
store_temp(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
int nr = sensor_attr->nr;
|
|
int index = sensor_attr->index;
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83793_data *data = i2c_get_clientdata(client);
|
|
long tmp = simple_strtol(buf, NULL, 10);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->temp[index][nr] = TEMP_TO_REG(tmp, -128, 127);
|
|
w83793_write_value(client, W83793_REG_TEMP[index][nr],
|
|
data->temp[index][nr]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
/*
|
|
TD1-TD4
|
|
each has 4 mode:(2 bits)
|
|
0: Stop monitor
|
|
1: Use internal temp sensor(default)
|
|
2: Reserved
|
|
3: Use sensor in Intel CPU and get result by PECI
|
|
|
|
TR1-TR2
|
|
each has 2 mode:(1 bit)
|
|
0: Disable temp sensor monitor
|
|
1: To enable temp sensors monitor
|
|
*/
|
|
|
|
/* 0 disable, 6 PECI */
|
|
static u8 TO_TEMP_MODE[] = { 0, 0, 0, 6 };
|
|
|
|
static ssize_t
|
|
show_temp_mode(struct device *dev, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct w83793_data *data = w83793_update_device(dev);
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
int index = sensor_attr->index;
|
|
u8 mask = (index < 4) ? 0x03 : 0x01;
|
|
u8 shift = (index < 4) ? (2 * index) : (index - 4);
|
|
u8 tmp;
|
|
index = (index < 4) ? 0 : 1;
|
|
|
|
tmp = (data->temp_mode[index] >> shift) & mask;
|
|
|
|
/* for the internal sensor, found out if diode or thermistor */
|
|
if (tmp == 1) {
|
|
tmp = index == 0 ? 3 : 4;
|
|
} else {
|
|
tmp = TO_TEMP_MODE[tmp];
|
|
}
|
|
|
|
return sprintf(buf, "%d\n", tmp);
|
|
}
|
|
|
|
static ssize_t
|
|
store_temp_mode(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83793_data *data = i2c_get_clientdata(client);
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
int index = sensor_attr->index;
|
|
u8 mask = (index < 4) ? 0x03 : 0x01;
|
|
u8 shift = (index < 4) ? (2 * index) : (index - 4);
|
|
u8 val = simple_strtoul(buf, NULL, 10);
|
|
|
|
/* transform the sysfs interface values into table above */
|
|
if ((val == 6) && (index < 4)) {
|
|
val -= 3;
|
|
} else if ((val == 3 && index < 4)
|
|
|| (val == 4 && index >= 4)) {
|
|
/* transform diode or thermistor into internal enable */
|
|
val = !!val;
|
|
} else {
|
|
return -EINVAL;
|
|
}
|
|
|
|
index = (index < 4) ? 0 : 1;
|
|
mutex_lock(&data->update_lock);
|
|
data->temp_mode[index] =
|
|
w83793_read_value(client, W83793_REG_TEMP_MODE[index]);
|
|
data->temp_mode[index] &= ~(mask << shift);
|
|
data->temp_mode[index] |= val << shift;
|
|
w83793_write_value(client, W83793_REG_TEMP_MODE[index],
|
|
data->temp_mode[index]);
|
|
mutex_unlock(&data->update_lock);
|
|
|
|
return count;
|
|
}
|
|
|
|
#define SETUP_PWM_DEFAULT 0
|
|
#define SETUP_PWM_UPTIME 1 /* Unit in 0.1s */
|
|
#define SETUP_PWM_DOWNTIME 2 /* Unit in 0.1s */
|
|
#define SETUP_TEMP_CRITICAL 3
|
|
static ssize_t
|
|
show_sf_setup(struct device *dev, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
int nr = sensor_attr->nr;
|
|
struct w83793_data *data = w83793_update_device(dev);
|
|
u32 val = 0;
|
|
|
|
if (SETUP_PWM_DEFAULT == nr) {
|
|
val = (data->pwm_default & 0x3f) << 2;
|
|
} else if (SETUP_PWM_UPTIME == nr) {
|
|
val = TIME_FROM_REG(data->pwm_uptime);
|
|
} else if (SETUP_PWM_DOWNTIME == nr) {
|
|
val = TIME_FROM_REG(data->pwm_downtime);
|
|
} else if (SETUP_TEMP_CRITICAL == nr) {
|
|
val = TEMP_FROM_REG(data->temp_critical & 0x7f);
|
|
}
|
|
|
|
return sprintf(buf, "%d\n", val);
|
|
}
|
|
|
|
static ssize_t
|
|
store_sf_setup(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
int nr = sensor_attr->nr;
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83793_data *data = i2c_get_clientdata(client);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
if (SETUP_PWM_DEFAULT == nr) {
|
|
data->pwm_default =
|
|
w83793_read_value(client, W83793_REG_PWM_DEFAULT) & 0xc0;
|
|
data->pwm_default |= SENSORS_LIMIT(simple_strtoul(buf, NULL,
|
|
10),
|
|
0, 0xff) >> 2;
|
|
w83793_write_value(client, W83793_REG_PWM_DEFAULT,
|
|
data->pwm_default);
|
|
} else if (SETUP_PWM_UPTIME == nr) {
|
|
data->pwm_uptime = TIME_TO_REG(simple_strtoul(buf, NULL, 10));
|
|
data->pwm_uptime += data->pwm_uptime == 0 ? 1 : 0;
|
|
w83793_write_value(client, W83793_REG_PWM_UPTIME,
|
|
data->pwm_uptime);
|
|
} else if (SETUP_PWM_DOWNTIME == nr) {
|
|
data->pwm_downtime = TIME_TO_REG(simple_strtoul(buf, NULL, 10));
|
|
data->pwm_downtime += data->pwm_downtime == 0 ? 1 : 0;
|
|
w83793_write_value(client, W83793_REG_PWM_DOWNTIME,
|
|
data->pwm_downtime);
|
|
} else { /* SETUP_TEMP_CRITICAL */
|
|
data->temp_critical =
|
|
w83793_read_value(client, W83793_REG_TEMP_CRITICAL) & 0x80;
|
|
data->temp_critical |= TEMP_TO_REG(simple_strtol(buf, NULL, 10),
|
|
0, 0x7f);
|
|
w83793_write_value(client, W83793_REG_TEMP_CRITICAL,
|
|
data->temp_critical);
|
|
}
|
|
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
/*
|
|
Temp SmartFan control
|
|
TEMP_FAN_MAP
|
|
Temp channel control which pwm fan, bitfield, bit 0 indicate pwm1...
|
|
It's possible two or more temp channels control the same fan, w83793
|
|
always prefers to pick the most critical request and applies it to
|
|
the related Fan.
|
|
It's possible one fan is not in any mapping of 6 temp channels, this
|
|
means the fan is manual mode
|
|
|
|
TEMP_PWM_ENABLE
|
|
Each temp channel has its own SmartFan mode, and temp channel
|
|
control fans that are set by TEMP_FAN_MAP
|
|
0: SmartFanII mode
|
|
1: Thermal Cruise Mode
|
|
|
|
TEMP_CRUISE
|
|
Target temperature in thermal cruise mode, w83793 will try to turn
|
|
fan speed to keep the temperature of target device around this
|
|
temperature.
|
|
|
|
TEMP_TOLERANCE
|
|
If Temp higher or lower than target with this tolerance, w83793
|
|
will take actions to speed up or slow down the fan to keep the
|
|
temperature within the tolerance range.
|
|
*/
|
|
|
|
#define TEMP_FAN_MAP 0
|
|
#define TEMP_PWM_ENABLE 1
|
|
#define TEMP_CRUISE 2
|
|
#define TEMP_TOLERANCE 3
|
|
static ssize_t
|
|
show_sf_ctrl(struct device *dev, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
int nr = sensor_attr->nr;
|
|
int index = sensor_attr->index;
|
|
struct w83793_data *data = w83793_update_device(dev);
|
|
u32 val;
|
|
|
|
if (TEMP_FAN_MAP == nr) {
|
|
val = data->temp_fan_map[index];
|
|
} else if (TEMP_PWM_ENABLE == nr) {
|
|
/* +2 to transfrom into 2 and 3 to conform with sysfs intf */
|
|
val = ((data->pwm_enable >> index) & 0x01) + 2;
|
|
} else if (TEMP_CRUISE == nr) {
|
|
val = TEMP_FROM_REG(data->temp_cruise[index] & 0x7f);
|
|
} else { /* TEMP_TOLERANCE */
|
|
val = data->tolerance[index >> 1] >> ((index & 0x01) ? 4 : 0);
|
|
val = TEMP_FROM_REG(val & 0x0f);
|
|
}
|
|
return sprintf(buf, "%d\n", val);
|
|
}
|
|
|
|
static ssize_t
|
|
store_sf_ctrl(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
int nr = sensor_attr->nr;
|
|
int index = sensor_attr->index;
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83793_data *data = i2c_get_clientdata(client);
|
|
u32 val;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
if (TEMP_FAN_MAP == nr) {
|
|
val = simple_strtoul(buf, NULL, 10) & 0xff;
|
|
w83793_write_value(client, W83793_REG_TEMP_FAN_MAP(index), val);
|
|
data->temp_fan_map[index] = val;
|
|
} else if (TEMP_PWM_ENABLE == nr) {
|
|
val = simple_strtoul(buf, NULL, 10);
|
|
if (2 == val || 3 == val) {
|
|
data->pwm_enable =
|
|
w83793_read_value(client, W83793_REG_PWM_ENABLE);
|
|
if (val - 2)
|
|
data->pwm_enable |= 1 << index;
|
|
else
|
|
data->pwm_enable &= ~(1 << index);
|
|
w83793_write_value(client, W83793_REG_PWM_ENABLE,
|
|
data->pwm_enable);
|
|
} else {
|
|
mutex_unlock(&data->update_lock);
|
|
return -EINVAL;
|
|
}
|
|
} else if (TEMP_CRUISE == nr) {
|
|
data->temp_cruise[index] =
|
|
w83793_read_value(client, W83793_REG_TEMP_CRUISE(index));
|
|
val = TEMP_TO_REG(simple_strtol(buf, NULL, 10), 0, 0x7f);
|
|
data->temp_cruise[index] &= 0x80;
|
|
data->temp_cruise[index] |= val;
|
|
|
|
w83793_write_value(client, W83793_REG_TEMP_CRUISE(index),
|
|
data->temp_cruise[index]);
|
|
} else { /* TEMP_TOLERANCE */
|
|
int i = index >> 1;
|
|
u8 shift = (index & 0x01) ? 4 : 0;
|
|
data->tolerance[i] =
|
|
w83793_read_value(client, W83793_REG_TEMP_TOL(i));
|
|
|
|
val = TEMP_TO_REG(simple_strtol(buf, NULL, 10), 0, 0x0f);
|
|
data->tolerance[i] &= ~(0x0f << shift);
|
|
data->tolerance[i] |= val << shift;
|
|
w83793_write_value(client, W83793_REG_TEMP_TOL(i),
|
|
data->tolerance[i]);
|
|
}
|
|
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t
|
|
show_sf2_pwm(struct device *dev, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
int nr = sensor_attr->nr;
|
|
int index = sensor_attr->index;
|
|
struct w83793_data *data = w83793_update_device(dev);
|
|
|
|
return sprintf(buf, "%d\n", (data->sf2_pwm[index][nr] & 0x3f) << 2);
|
|
}
|
|
|
|
static ssize_t
|
|
store_sf2_pwm(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83793_data *data = i2c_get_clientdata(client);
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
int nr = sensor_attr->nr;
|
|
int index = sensor_attr->index;
|
|
u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 0xff) >> 2;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->sf2_pwm[index][nr] =
|
|
w83793_read_value(client, W83793_REG_SF2_PWM(index, nr)) & 0xc0;
|
|
data->sf2_pwm[index][nr] |= val;
|
|
w83793_write_value(client, W83793_REG_SF2_PWM(index, nr),
|
|
data->sf2_pwm[index][nr]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t
|
|
show_sf2_temp(struct device *dev, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
int nr = sensor_attr->nr;
|
|
int index = sensor_attr->index;
|
|
struct w83793_data *data = w83793_update_device(dev);
|
|
|
|
return sprintf(buf, "%ld\n",
|
|
TEMP_FROM_REG(data->sf2_temp[index][nr] & 0x7f));
|
|
}
|
|
|
|
static ssize_t
|
|
store_sf2_temp(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83793_data *data = i2c_get_clientdata(client);
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
int nr = sensor_attr->nr;
|
|
int index = sensor_attr->index;
|
|
u8 val = TEMP_TO_REG(simple_strtol(buf, NULL, 10), 0, 0x7f);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->sf2_temp[index][nr] =
|
|
w83793_read_value(client, W83793_REG_SF2_TEMP(index, nr)) & 0x80;
|
|
data->sf2_temp[index][nr] |= val;
|
|
w83793_write_value(client, W83793_REG_SF2_TEMP(index, nr),
|
|
data->sf2_temp[index][nr]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
/* only Vcore A/B and Vtt have additional 2 bits precision */
|
|
static ssize_t
|
|
show_in(struct device *dev, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
int nr = sensor_attr->nr;
|
|
int index = sensor_attr->index;
|
|
struct w83793_data *data = w83793_update_device(dev);
|
|
u16 val = data->in[index][nr];
|
|
|
|
if (index < 3) {
|
|
val <<= 2;
|
|
val += (data->in_low_bits[nr] >> (index * 2)) & 0x3;
|
|
}
|
|
/* voltage inputs 5VDD and 5VSB needs 150mV offset */
|
|
val = val * scale_in[index] + scale_in_add[index];
|
|
return sprintf(buf, "%d\n", val);
|
|
}
|
|
|
|
static ssize_t
|
|
store_in(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
int nr = sensor_attr->nr;
|
|
int index = sensor_attr->index;
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83793_data *data = i2c_get_clientdata(client);
|
|
u32 val;
|
|
|
|
val =
|
|
(simple_strtoul(buf, NULL, 10) +
|
|
scale_in[index] / 2) / scale_in[index];
|
|
mutex_lock(&data->update_lock);
|
|
if (index > 2) {
|
|
/* fix the limit values of 5VDD and 5VSB to ALARM mechanism */
|
|
if (1 == nr || 2 == nr) {
|
|
val -= scale_in_add[index] / scale_in[index];
|
|
}
|
|
val = SENSORS_LIMIT(val, 0, 255);
|
|
} else {
|
|
val = SENSORS_LIMIT(val, 0, 0x3FF);
|
|
data->in_low_bits[nr] =
|
|
w83793_read_value(client, W83793_REG_IN_LOW_BITS[nr]);
|
|
data->in_low_bits[nr] &= ~(0x03 << (2 * index));
|
|
data->in_low_bits[nr] |= (val & 0x03) << (2 * index);
|
|
w83793_write_value(client, W83793_REG_IN_LOW_BITS[nr],
|
|
data->in_low_bits[nr]);
|
|
val >>= 2;
|
|
}
|
|
data->in[index][nr] = val;
|
|
w83793_write_value(client, W83793_REG_IN[index][nr],
|
|
data->in[index][nr]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
#define NOT_USED -1
|
|
|
|
#define SENSOR_ATTR_IN(index) \
|
|
SENSOR_ATTR_2(in##index##_input, S_IRUGO, show_in, NULL, \
|
|
IN_READ, index), \
|
|
SENSOR_ATTR_2(in##index##_max, S_IRUGO | S_IWUSR, show_in, \
|
|
store_in, IN_MAX, index), \
|
|
SENSOR_ATTR_2(in##index##_min, S_IRUGO | S_IWUSR, show_in, \
|
|
store_in, IN_LOW, index), \
|
|
SENSOR_ATTR_2(in##index##_alarm, S_IRUGO, show_alarm_beep, \
|
|
NULL, ALARM_STATUS, index + ((index > 2) ? 1 : 0)), \
|
|
SENSOR_ATTR_2(in##index##_beep, S_IWUSR | S_IRUGO, \
|
|
show_alarm_beep, store_beep, BEEP_ENABLE, \
|
|
index + ((index > 2) ? 1 : 0))
|
|
|
|
#define SENSOR_ATTR_FAN(index) \
|
|
SENSOR_ATTR_2(fan##index##_alarm, S_IRUGO, show_alarm_beep, \
|
|
NULL, ALARM_STATUS, index + 17), \
|
|
SENSOR_ATTR_2(fan##index##_beep, S_IWUSR | S_IRUGO, \
|
|
show_alarm_beep, store_beep, BEEP_ENABLE, index + 17), \
|
|
SENSOR_ATTR_2(fan##index##_input, S_IRUGO, show_fan, \
|
|
NULL, FAN_INPUT, index - 1), \
|
|
SENSOR_ATTR_2(fan##index##_min, S_IWUSR | S_IRUGO, \
|
|
show_fan, store_fan_min, FAN_MIN, index - 1)
|
|
|
|
#define SENSOR_ATTR_PWM(index) \
|
|
SENSOR_ATTR_2(pwm##index, S_IWUSR | S_IRUGO, show_pwm, \
|
|
store_pwm, PWM_DUTY, index - 1), \
|
|
SENSOR_ATTR_2(pwm##index##_nonstop, S_IWUSR | S_IRUGO, \
|
|
show_pwm, store_pwm, PWM_NONSTOP, index - 1), \
|
|
SENSOR_ATTR_2(pwm##index##_start, S_IWUSR | S_IRUGO, \
|
|
show_pwm, store_pwm, PWM_START, index - 1), \
|
|
SENSOR_ATTR_2(pwm##index##_stop_time, S_IWUSR | S_IRUGO, \
|
|
show_pwm, store_pwm, PWM_STOP_TIME, index - 1)
|
|
|
|
#define SENSOR_ATTR_TEMP(index) \
|
|
SENSOR_ATTR_2(temp##index##_type, S_IRUGO | S_IWUSR, \
|
|
show_temp_mode, store_temp_mode, NOT_USED, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_input, S_IRUGO, show_temp, \
|
|
NULL, TEMP_READ, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_max, S_IRUGO | S_IWUSR, show_temp, \
|
|
store_temp, TEMP_CRIT, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_max_hyst, S_IRUGO | S_IWUSR, \
|
|
show_temp, store_temp, TEMP_CRIT_HYST, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_warn, S_IRUGO | S_IWUSR, show_temp, \
|
|
store_temp, TEMP_WARN, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_warn_hyst, S_IRUGO | S_IWUSR, \
|
|
show_temp, store_temp, TEMP_WARN_HYST, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_alarm, S_IRUGO, \
|
|
show_alarm_beep, NULL, ALARM_STATUS, index + 11), \
|
|
SENSOR_ATTR_2(temp##index##_beep, S_IWUSR | S_IRUGO, \
|
|
show_alarm_beep, store_beep, BEEP_ENABLE, index + 11), \
|
|
SENSOR_ATTR_2(temp##index##_auto_channels_pwm, \
|
|
S_IRUGO | S_IWUSR, show_sf_ctrl, store_sf_ctrl, \
|
|
TEMP_FAN_MAP, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_pwm_enable, S_IWUSR | S_IRUGO, \
|
|
show_sf_ctrl, store_sf_ctrl, TEMP_PWM_ENABLE, \
|
|
index - 1), \
|
|
SENSOR_ATTR_2(thermal_cruise##index, S_IRUGO | S_IWUSR, \
|
|
show_sf_ctrl, store_sf_ctrl, TEMP_CRUISE, index - 1), \
|
|
SENSOR_ATTR_2(tolerance##index, S_IRUGO | S_IWUSR, show_sf_ctrl,\
|
|
store_sf_ctrl, TEMP_TOLERANCE, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_auto_point1_pwm, S_IRUGO | S_IWUSR, \
|
|
show_sf2_pwm, store_sf2_pwm, 0, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_auto_point2_pwm, S_IRUGO | S_IWUSR, \
|
|
show_sf2_pwm, store_sf2_pwm, 1, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_auto_point3_pwm, S_IRUGO | S_IWUSR, \
|
|
show_sf2_pwm, store_sf2_pwm, 2, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_auto_point4_pwm, S_IRUGO | S_IWUSR, \
|
|
show_sf2_pwm, store_sf2_pwm, 3, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_auto_point5_pwm, S_IRUGO | S_IWUSR, \
|
|
show_sf2_pwm, store_sf2_pwm, 4, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_auto_point6_pwm, S_IRUGO | S_IWUSR, \
|
|
show_sf2_pwm, store_sf2_pwm, 5, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_auto_point7_pwm, S_IRUGO | S_IWUSR, \
|
|
show_sf2_pwm, store_sf2_pwm, 6, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_auto_point1_temp, S_IRUGO | S_IWUSR,\
|
|
show_sf2_temp, store_sf2_temp, 0, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_auto_point2_temp, S_IRUGO | S_IWUSR,\
|
|
show_sf2_temp, store_sf2_temp, 1, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_auto_point3_temp, S_IRUGO | S_IWUSR,\
|
|
show_sf2_temp, store_sf2_temp, 2, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_auto_point4_temp, S_IRUGO | S_IWUSR,\
|
|
show_sf2_temp, store_sf2_temp, 3, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_auto_point5_temp, S_IRUGO | S_IWUSR,\
|
|
show_sf2_temp, store_sf2_temp, 4, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_auto_point6_temp, S_IRUGO | S_IWUSR,\
|
|
show_sf2_temp, store_sf2_temp, 5, index - 1), \
|
|
SENSOR_ATTR_2(temp##index##_auto_point7_temp, S_IRUGO | S_IWUSR,\
|
|
show_sf2_temp, store_sf2_temp, 6, index - 1)
|
|
|
|
static struct sensor_device_attribute_2 w83793_sensor_attr_2[] = {
|
|
SENSOR_ATTR_IN(0),
|
|
SENSOR_ATTR_IN(1),
|
|
SENSOR_ATTR_IN(2),
|
|
SENSOR_ATTR_IN(3),
|
|
SENSOR_ATTR_IN(4),
|
|
SENSOR_ATTR_IN(5),
|
|
SENSOR_ATTR_IN(6),
|
|
SENSOR_ATTR_IN(7),
|
|
SENSOR_ATTR_IN(8),
|
|
SENSOR_ATTR_IN(9),
|
|
SENSOR_ATTR_FAN(1),
|
|
SENSOR_ATTR_FAN(2),
|
|
SENSOR_ATTR_FAN(3),
|
|
SENSOR_ATTR_FAN(4),
|
|
SENSOR_ATTR_FAN(5),
|
|
SENSOR_ATTR_PWM(1),
|
|
SENSOR_ATTR_PWM(2),
|
|
SENSOR_ATTR_PWM(3),
|
|
};
|
|
|
|
static struct sensor_device_attribute_2 w83793_temp[] = {
|
|
SENSOR_ATTR_TEMP(1),
|
|
SENSOR_ATTR_TEMP(2),
|
|
SENSOR_ATTR_TEMP(3),
|
|
SENSOR_ATTR_TEMP(4),
|
|
SENSOR_ATTR_TEMP(5),
|
|
SENSOR_ATTR_TEMP(6),
|
|
};
|
|
|
|
/* Fan6-Fan12 */
|
|
static struct sensor_device_attribute_2 w83793_left_fan[] = {
|
|
SENSOR_ATTR_FAN(6),
|
|
SENSOR_ATTR_FAN(7),
|
|
SENSOR_ATTR_FAN(8),
|
|
SENSOR_ATTR_FAN(9),
|
|
SENSOR_ATTR_FAN(10),
|
|
SENSOR_ATTR_FAN(11),
|
|
SENSOR_ATTR_FAN(12),
|
|
};
|
|
|
|
/* Pwm4-Pwm8 */
|
|
static struct sensor_device_attribute_2 w83793_left_pwm[] = {
|
|
SENSOR_ATTR_PWM(4),
|
|
SENSOR_ATTR_PWM(5),
|
|
SENSOR_ATTR_PWM(6),
|
|
SENSOR_ATTR_PWM(7),
|
|
SENSOR_ATTR_PWM(8),
|
|
};
|
|
|
|
static struct sensor_device_attribute_2 w83793_vid[] = {
|
|
SENSOR_ATTR_2(cpu0_vid, S_IRUGO, show_vid, NULL, NOT_USED, 0),
|
|
SENSOR_ATTR_2(cpu1_vid, S_IRUGO, show_vid, NULL, NOT_USED, 1),
|
|
};
|
|
static DEVICE_ATTR(vrm, S_IWUSR | S_IRUGO, show_vrm, store_vrm);
|
|
|
|
static struct sensor_device_attribute_2 sda_single_files[] = {
|
|
SENSOR_ATTR_2(chassis, S_IWUSR | S_IRUGO, show_alarm_beep,
|
|
store_chassis_clear, ALARM_STATUS, 30),
|
|
SENSOR_ATTR_2(beep_enable, S_IWUSR | S_IRUGO, show_beep_enable,
|
|
store_beep_enable, NOT_USED, NOT_USED),
|
|
SENSOR_ATTR_2(pwm_default, S_IWUSR | S_IRUGO, show_sf_setup,
|
|
store_sf_setup, SETUP_PWM_DEFAULT, NOT_USED),
|
|
SENSOR_ATTR_2(pwm_uptime, S_IWUSR | S_IRUGO, show_sf_setup,
|
|
store_sf_setup, SETUP_PWM_UPTIME, NOT_USED),
|
|
SENSOR_ATTR_2(pwm_downtime, S_IWUSR | S_IRUGO, show_sf_setup,
|
|
store_sf_setup, SETUP_PWM_DOWNTIME, NOT_USED),
|
|
SENSOR_ATTR_2(temp_critical, S_IWUSR | S_IRUGO, show_sf_setup,
|
|
store_sf_setup, SETUP_TEMP_CRITICAL, NOT_USED),
|
|
};
|
|
|
|
static void w83793_init_client(struct i2c_client *client)
|
|
{
|
|
if (reset) {
|
|
w83793_write_value(client, W83793_REG_CONFIG, 0x80);
|
|
}
|
|
|
|
/* Start monitoring */
|
|
w83793_write_value(client, W83793_REG_CONFIG,
|
|
w83793_read_value(client, W83793_REG_CONFIG) | 0x01);
|
|
|
|
}
|
|
|
|
static int w83793_remove(struct i2c_client *client)
|
|
{
|
|
struct w83793_data *data = i2c_get_clientdata(client);
|
|
struct device *dev = &client->dev;
|
|
int i;
|
|
|
|
hwmon_device_unregister(data->hwmon_dev);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++)
|
|
device_remove_file(dev,
|
|
&w83793_sensor_attr_2[i].dev_attr);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(sda_single_files); i++)
|
|
device_remove_file(dev, &sda_single_files[i].dev_attr);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(w83793_vid); i++)
|
|
device_remove_file(dev, &w83793_vid[i].dev_attr);
|
|
device_remove_file(dev, &dev_attr_vrm);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++)
|
|
device_remove_file(dev, &w83793_left_fan[i].dev_attr);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++)
|
|
device_remove_file(dev, &w83793_left_pwm[i].dev_attr);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(w83793_temp); i++)
|
|
device_remove_file(dev, &w83793_temp[i].dev_attr);
|
|
|
|
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 int
|
|
w83793_detect_subclients(struct i2c_client *client)
|
|
{
|
|
int i, id, err;
|
|
int address = client->addr;
|
|
u8 tmp;
|
|
struct i2c_adapter *adapter = client->adapter;
|
|
struct w83793_data *data = i2c_get_clientdata(client);
|
|
|
|
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 = -EINVAL;
|
|
goto ERROR_SC_0;
|
|
}
|
|
}
|
|
w83793_write_value(client, W83793_REG_I2C_SUBADDR,
|
|
(force_subclients[2] & 0x07) |
|
|
((force_subclients[3] & 0x07) << 4));
|
|
}
|
|
|
|
tmp = w83793_read_value(client, W83793_REG_I2C_SUBADDR);
|
|
if (!(tmp & 0x08)) {
|
|
data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (tmp & 0x7));
|
|
}
|
|
if (!(tmp & 0x80)) {
|
|
if ((data->lm75[0] != NULL)
|
|
&& ((tmp & 0x7) == ((tmp >> 4) & 0x7))) {
|
|
dev_err(&client->dev,
|
|
"duplicate addresses 0x%x, "
|
|
"use force_subclients\n", data->lm75[0]->addr);
|
|
err = -ENODEV;
|
|
goto ERROR_SC_1;
|
|
}
|
|
data->lm75[1] = i2c_new_dummy(adapter,
|
|
0x48 + ((tmp >> 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 w83793_detect(struct i2c_client *client, int kind,
|
|
struct i2c_board_info *info)
|
|
{
|
|
u8 tmp, bank;
|
|
struct i2c_adapter *adapter = client->adapter;
|
|
unsigned short address = client->addr;
|
|
|
|
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
|
|
return -ENODEV;
|
|
}
|
|
|
|
bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL);
|
|
|
|
if (kind < 0) {
|
|
tmp = bank & 0x80 ? 0x5c : 0xa3;
|
|
/* Check Winbond vendor ID */
|
|
if (tmp != i2c_smbus_read_byte_data(client,
|
|
W83793_REG_VENDORID)) {
|
|
pr_debug("w83793: Detection failed at check "
|
|
"vendor id\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* If Winbond chip, address of chip and W83793_REG_I2C_ADDR
|
|
should match */
|
|
if ((bank & 0x07) == 0
|
|
&& i2c_smbus_read_byte_data(client, W83793_REG_I2C_ADDR) !=
|
|
(address << 1)) {
|
|
pr_debug("w83793: Detection failed at check "
|
|
"i2c addr\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
}
|
|
|
|
/* We have either had a force parameter, or we have already detected the
|
|
Winbond. Determine the chip type now */
|
|
|
|
if (kind <= 0) {
|
|
if (0x7b == i2c_smbus_read_byte_data(client,
|
|
W83793_REG_CHIPID)) {
|
|
kind = w83793;
|
|
} else {
|
|
if (kind == 0)
|
|
dev_warn(&adapter->dev, "w83793: Ignoring "
|
|
"'force' parameter for unknown chip "
|
|
"at address 0x%02x\n", address);
|
|
return -ENODEV;
|
|
}
|
|
}
|
|
|
|
strlcpy(info->type, "w83793", I2C_NAME_SIZE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int w83793_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct device *dev = &client->dev;
|
|
struct w83793_data *data;
|
|
int i, tmp, val, err;
|
|
int files_fan = ARRAY_SIZE(w83793_left_fan) / 7;
|
|
int files_pwm = ARRAY_SIZE(w83793_left_pwm) / 5;
|
|
int files_temp = ARRAY_SIZE(w83793_temp) / 6;
|
|
|
|
data = kzalloc(sizeof(struct w83793_data), GFP_KERNEL);
|
|
if (!data) {
|
|
err = -ENOMEM;
|
|
goto exit;
|
|
}
|
|
|
|
i2c_set_clientdata(client, data);
|
|
data->bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL);
|
|
mutex_init(&data->update_lock);
|
|
|
|
err = w83793_detect_subclients(client);
|
|
if (err)
|
|
goto free_mem;
|
|
|
|
/* Initialize the chip */
|
|
w83793_init_client(client);
|
|
|
|
/*
|
|
Only fan 1-5 has their own input pins,
|
|
Pwm 1-3 has their own pins
|
|
*/
|
|
data->has_fan = 0x1f;
|
|
data->has_pwm = 0x07;
|
|
tmp = w83793_read_value(client, W83793_REG_MFC);
|
|
val = w83793_read_value(client, W83793_REG_FANIN_CTRL);
|
|
|
|
/* check the function of pins 49-56 */
|
|
if (tmp & 0x80) {
|
|
data->has_vid |= 0x2; /* has VIDB */
|
|
} else {
|
|
data->has_pwm |= 0x18; /* pwm 4,5 */
|
|
if (val & 0x01) { /* fan 6 */
|
|
data->has_fan |= 0x20;
|
|
data->has_pwm |= 0x20;
|
|
}
|
|
if (val & 0x02) { /* fan 7 */
|
|
data->has_fan |= 0x40;
|
|
data->has_pwm |= 0x40;
|
|
}
|
|
if (!(tmp & 0x40) && (val & 0x04)) { /* fan 8 */
|
|
data->has_fan |= 0x80;
|
|
data->has_pwm |= 0x80;
|
|
}
|
|
}
|
|
|
|
/* check the function of pins 37-40 */
|
|
if (!(tmp & 0x29))
|
|
data->has_vid |= 0x1; /* has VIDA */
|
|
if (0x08 == (tmp & 0x0c)) {
|
|
if (val & 0x08) /* fan 9 */
|
|
data->has_fan |= 0x100;
|
|
if (val & 0x10) /* fan 10 */
|
|
data->has_fan |= 0x200;
|
|
}
|
|
if (0x20 == (tmp & 0x30)) {
|
|
if (val & 0x20) /* fan 11 */
|
|
data->has_fan |= 0x400;
|
|
if (val & 0x40) /* fan 12 */
|
|
data->has_fan |= 0x800;
|
|
}
|
|
|
|
if ((tmp & 0x01) && (val & 0x04)) { /* fan 8, second location */
|
|
data->has_fan |= 0x80;
|
|
data->has_pwm |= 0x80;
|
|
}
|
|
|
|
tmp = w83793_read_value(client, W83793_REG_FANIN_SEL);
|
|
if ((tmp & 0x01) && (val & 0x08)) { /* fan 9, second location */
|
|
data->has_fan |= 0x100;
|
|
}
|
|
if ((tmp & 0x02) && (val & 0x10)) { /* fan 10, second location */
|
|
data->has_fan |= 0x200;
|
|
}
|
|
if ((tmp & 0x04) && (val & 0x20)) { /* fan 11, second location */
|
|
data->has_fan |= 0x400;
|
|
}
|
|
if ((tmp & 0x08) && (val & 0x40)) { /* fan 12, second location */
|
|
data->has_fan |= 0x800;
|
|
}
|
|
|
|
/* check the temp1-6 mode, ignore former AMDSI selected inputs */
|
|
tmp = w83793_read_value(client,W83793_REG_TEMP_MODE[0]);
|
|
if (tmp & 0x01)
|
|
data->has_temp |= 0x01;
|
|
if (tmp & 0x04)
|
|
data->has_temp |= 0x02;
|
|
if (tmp & 0x10)
|
|
data->has_temp |= 0x04;
|
|
if (tmp & 0x40)
|
|
data->has_temp |= 0x08;
|
|
|
|
tmp = w83793_read_value(client,W83793_REG_TEMP_MODE[1]);
|
|
if (tmp & 0x01)
|
|
data->has_temp |= 0x10;
|
|
if (tmp & 0x02)
|
|
data->has_temp |= 0x20;
|
|
|
|
/* Register sysfs hooks */
|
|
for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) {
|
|
err = device_create_file(dev,
|
|
&w83793_sensor_attr_2[i].dev_attr);
|
|
if (err)
|
|
goto exit_remove;
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(w83793_vid); i++) {
|
|
if (!(data->has_vid & (1 << i)))
|
|
continue;
|
|
err = device_create_file(dev, &w83793_vid[i].dev_attr);
|
|
if (err)
|
|
goto exit_remove;
|
|
}
|
|
if (data->has_vid) {
|
|
data->vrm = vid_which_vrm();
|
|
err = device_create_file(dev, &dev_attr_vrm);
|
|
if (err)
|
|
goto exit_remove;
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) {
|
|
err = device_create_file(dev, &sda_single_files[i].dev_attr);
|
|
if (err)
|
|
goto exit_remove;
|
|
|
|
}
|
|
|
|
for (i = 0; i < 6; i++) {
|
|
int j;
|
|
if (!(data->has_temp & (1 << i)))
|
|
continue;
|
|
for (j = 0; j < files_temp; j++) {
|
|
err = device_create_file(dev,
|
|
&w83793_temp[(i) * files_temp
|
|
+ j].dev_attr);
|
|
if (err)
|
|
goto exit_remove;
|
|
}
|
|
}
|
|
|
|
for (i = 5; i < 12; i++) {
|
|
int j;
|
|
if (!(data->has_fan & (1 << i)))
|
|
continue;
|
|
for (j = 0; j < files_fan; j++) {
|
|
err = device_create_file(dev,
|
|
&w83793_left_fan[(i - 5) * files_fan
|
|
+ j].dev_attr);
|
|
if (err)
|
|
goto exit_remove;
|
|
}
|
|
}
|
|
|
|
for (i = 3; i < 8; i++) {
|
|
int j;
|
|
if (!(data->has_pwm & (1 << i)))
|
|
continue;
|
|
for (j = 0; j < files_pwm; j++) {
|
|
err = device_create_file(dev,
|
|
&w83793_left_pwm[(i - 3) * files_pwm
|
|
+ j].dev_attr);
|
|
if (err)
|
|
goto exit_remove;
|
|
}
|
|
}
|
|
|
|
data->hwmon_dev = hwmon_device_register(dev);
|
|
if (IS_ERR(data->hwmon_dev)) {
|
|
err = PTR_ERR(data->hwmon_dev);
|
|
goto exit_remove;
|
|
}
|
|
|
|
return 0;
|
|
|
|
/* Unregister sysfs hooks */
|
|
|
|
exit_remove:
|
|
for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++)
|
|
device_remove_file(dev, &w83793_sensor_attr_2[i].dev_attr);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(sda_single_files); i++)
|
|
device_remove_file(dev, &sda_single_files[i].dev_attr);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(w83793_vid); i++)
|
|
device_remove_file(dev, &w83793_vid[i].dev_attr);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++)
|
|
device_remove_file(dev, &w83793_left_fan[i].dev_attr);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++)
|
|
device_remove_file(dev, &w83793_left_pwm[i].dev_attr);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(w83793_temp); i++)
|
|
device_remove_file(dev, &w83793_temp[i].dev_attr);
|
|
|
|
if (data->lm75[0] != NULL)
|
|
i2c_unregister_device(data->lm75[0]);
|
|
if (data->lm75[1] != NULL)
|
|
i2c_unregister_device(data->lm75[1]);
|
|
free_mem:
|
|
kfree(data);
|
|
exit:
|
|
return err;
|
|
}
|
|
|
|
static void w83793_update_nonvolatile(struct device *dev)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83793_data *data = i2c_get_clientdata(client);
|
|
int i, j;
|
|
/*
|
|
They are somewhat "stable" registers, and to update them everytime
|
|
takes so much time, it's just not worthy. Update them in a long
|
|
interval to avoid exception.
|
|
*/
|
|
if (!(time_after(jiffies, data->last_nonvolatile + HZ * 300)
|
|
|| !data->valid))
|
|
return;
|
|
/* update voltage limits */
|
|
for (i = 1; i < 3; i++) {
|
|
for (j = 0; j < ARRAY_SIZE(data->in); j++) {
|
|
data->in[j][i] =
|
|
w83793_read_value(client, W83793_REG_IN[j][i]);
|
|
}
|
|
data->in_low_bits[i] =
|
|
w83793_read_value(client, W83793_REG_IN_LOW_BITS[i]);
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) {
|
|
/* Update the Fan measured value and limits */
|
|
if (!(data->has_fan & (1 << i))) {
|
|
continue;
|
|
}
|
|
data->fan_min[i] =
|
|
w83793_read_value(client, W83793_REG_FAN_MIN(i)) << 8;
|
|
data->fan_min[i] |=
|
|
w83793_read_value(client, W83793_REG_FAN_MIN(i) + 1);
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(data->temp_fan_map); i++) {
|
|
if (!(data->has_temp & (1 << i)))
|
|
continue;
|
|
data->temp_fan_map[i] =
|
|
w83793_read_value(client, W83793_REG_TEMP_FAN_MAP(i));
|
|
for (j = 1; j < 5; j++) {
|
|
data->temp[i][j] =
|
|
w83793_read_value(client, W83793_REG_TEMP[i][j]);
|
|
}
|
|
data->temp_cruise[i] =
|
|
w83793_read_value(client, W83793_REG_TEMP_CRUISE(i));
|
|
for (j = 0; j < 7; j++) {
|
|
data->sf2_pwm[i][j] =
|
|
w83793_read_value(client, W83793_REG_SF2_PWM(i, j));
|
|
data->sf2_temp[i][j] =
|
|
w83793_read_value(client,
|
|
W83793_REG_SF2_TEMP(i, j));
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(data->temp_mode); i++)
|
|
data->temp_mode[i] =
|
|
w83793_read_value(client, W83793_REG_TEMP_MODE[i]);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(data->tolerance); i++) {
|
|
data->tolerance[i] =
|
|
w83793_read_value(client, W83793_REG_TEMP_TOL(i));
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(data->pwm); i++) {
|
|
if (!(data->has_pwm & (1 << i)))
|
|
continue;
|
|
data->pwm[i][PWM_NONSTOP] =
|
|
w83793_read_value(client, W83793_REG_PWM(i, PWM_NONSTOP));
|
|
data->pwm[i][PWM_START] =
|
|
w83793_read_value(client, W83793_REG_PWM(i, PWM_START));
|
|
data->pwm_stop_time[i] =
|
|
w83793_read_value(client, W83793_REG_PWM_STOP_TIME(i));
|
|
}
|
|
|
|
data->pwm_default = w83793_read_value(client, W83793_REG_PWM_DEFAULT);
|
|
data->pwm_enable = w83793_read_value(client, W83793_REG_PWM_ENABLE);
|
|
data->pwm_uptime = w83793_read_value(client, W83793_REG_PWM_UPTIME);
|
|
data->pwm_downtime = w83793_read_value(client, W83793_REG_PWM_DOWNTIME);
|
|
data->temp_critical =
|
|
w83793_read_value(client, W83793_REG_TEMP_CRITICAL);
|
|
data->beep_enable = w83793_read_value(client, W83793_REG_OVT_BEEP);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(data->beeps); i++) {
|
|
data->beeps[i] = w83793_read_value(client, W83793_REG_BEEP(i));
|
|
}
|
|
|
|
data->last_nonvolatile = jiffies;
|
|
}
|
|
|
|
static struct w83793_data *w83793_update_device(struct device *dev)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83793_data *data = i2c_get_clientdata(client);
|
|
int i;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
|
|
if (!(time_after(jiffies, data->last_updated + HZ * 2)
|
|
|| !data->valid))
|
|
goto END;
|
|
|
|
/* Update the voltages measured value and limits */
|
|
for (i = 0; i < ARRAY_SIZE(data->in); i++)
|
|
data->in[i][IN_READ] =
|
|
w83793_read_value(client, W83793_REG_IN[i][IN_READ]);
|
|
|
|
data->in_low_bits[IN_READ] =
|
|
w83793_read_value(client, W83793_REG_IN_LOW_BITS[IN_READ]);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(data->fan); i++) {
|
|
if (!(data->has_fan & (1 << i))) {
|
|
continue;
|
|
}
|
|
data->fan[i] =
|
|
w83793_read_value(client, W83793_REG_FAN(i)) << 8;
|
|
data->fan[i] |=
|
|
w83793_read_value(client, W83793_REG_FAN(i) + 1);
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(data->temp); i++) {
|
|
if (!(data->has_temp & (1 << i)))
|
|
continue;
|
|
data->temp[i][TEMP_READ] =
|
|
w83793_read_value(client, W83793_REG_TEMP[i][TEMP_READ]);
|
|
}
|
|
|
|
data->temp_low_bits =
|
|
w83793_read_value(client, W83793_REG_TEMP_LOW_BITS);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(data->pwm); i++) {
|
|
if (data->has_pwm & (1 << i))
|
|
data->pwm[i][PWM_DUTY] =
|
|
w83793_read_value(client,
|
|
W83793_REG_PWM(i, PWM_DUTY));
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(data->alarms); i++)
|
|
data->alarms[i] =
|
|
w83793_read_value(client, W83793_REG_ALARM(i));
|
|
if (data->has_vid & 0x01)
|
|
data->vid[0] = w83793_read_value(client, W83793_REG_VID_INA);
|
|
if (data->has_vid & 0x02)
|
|
data->vid[1] = w83793_read_value(client, W83793_REG_VID_INB);
|
|
w83793_update_nonvolatile(dev);
|
|
data->last_updated = jiffies;
|
|
data->valid = 1;
|
|
|
|
END:
|
|
mutex_unlock(&data->update_lock);
|
|
return data;
|
|
}
|
|
|
|
/* Ignore the possibility that somebody change bank outside the driver
|
|
Must be called with data->update_lock held, except during initialization */
|
|
static u8 w83793_read_value(struct i2c_client *client, u16 reg)
|
|
{
|
|
struct w83793_data *data = i2c_get_clientdata(client);
|
|
u8 res = 0xff;
|
|
u8 new_bank = reg >> 8;
|
|
|
|
new_bank |= data->bank & 0xfc;
|
|
if (data->bank != new_bank) {
|
|
if (i2c_smbus_write_byte_data
|
|
(client, W83793_REG_BANKSEL, new_bank) >= 0)
|
|
data->bank = new_bank;
|
|
else {
|
|
dev_err(&client->dev,
|
|
"set bank to %d failed, fall back "
|
|
"to bank %d, read reg 0x%x error\n",
|
|
new_bank, data->bank, reg);
|
|
res = 0x0; /* read 0x0 from the chip */
|
|
goto END;
|
|
}
|
|
}
|
|
res = i2c_smbus_read_byte_data(client, reg & 0xff);
|
|
END:
|
|
return res;
|
|
}
|
|
|
|
/* Must be called with data->update_lock held, except during initialization */
|
|
static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value)
|
|
{
|
|
struct w83793_data *data = i2c_get_clientdata(client);
|
|
int res;
|
|
u8 new_bank = reg >> 8;
|
|
|
|
new_bank |= data->bank & 0xfc;
|
|
if (data->bank != new_bank) {
|
|
if ((res = i2c_smbus_write_byte_data
|
|
(client, W83793_REG_BANKSEL, new_bank)) >= 0)
|
|
data->bank = new_bank;
|
|
else {
|
|
dev_err(&client->dev,
|
|
"set bank to %d failed, fall back "
|
|
"to bank %d, write reg 0x%x error\n",
|
|
new_bank, data->bank, reg);
|
|
goto END;
|
|
}
|
|
}
|
|
|
|
res = i2c_smbus_write_byte_data(client, reg & 0xff, value);
|
|
END:
|
|
return res;
|
|
}
|
|
|
|
static int __init sensors_w83793_init(void)
|
|
{
|
|
return i2c_add_driver(&w83793_driver);
|
|
}
|
|
|
|
static void __exit sensors_w83793_exit(void)
|
|
{
|
|
i2c_del_driver(&w83793_driver);
|
|
}
|
|
|
|
MODULE_AUTHOR("Yuan Mu");
|
|
MODULE_DESCRIPTION("w83793 driver");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
module_init(sensors_w83793_init);
|
|
module_exit(sensors_w83793_exit);
|