Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1 | /* |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 2 | * w83793.c - Linux kernel driver for hardware monitoring |
| 3 | * Copyright (C) 2006 Winbond Electronics Corp. |
| 4 | * Yuan Mu |
| 5 | * Rudolf Marek <r.marek@assembler.cz> |
| 6 | * Copyright (C) 2009-2010 Sven Anders <anders@anduras.de>, ANDURAS AG. |
| 7 | * Watchdog driver part |
| 8 | * (Based partially on fschmd driver, |
| 9 | * Copyright 2007-2008 by Hans de Goede) |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License as published by |
| 13 | * the Free Software Foundation - version 2. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with this program; if not, write to the Free Software |
| 22 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 23 | * 02110-1301 USA. |
| 24 | */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 25 | |
| 26 | /* |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 27 | * Supports following chips: |
| 28 | * |
| 29 | * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA |
| 30 | * w83793 10 12 8 6 0x7b 0x5ca3 yes no |
| 31 | */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 32 | |
| 33 | #include <linux/module.h> |
| 34 | #include <linux/init.h> |
| 35 | #include <linux/slab.h> |
| 36 | #include <linux/i2c.h> |
| 37 | #include <linux/hwmon.h> |
| 38 | #include <linux/hwmon-vid.h> |
| 39 | #include <linux/hwmon-sysfs.h> |
| 40 | #include <linux/err.h> |
| 41 | #include <linux/mutex.h> |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 42 | #include <linux/fs.h> |
| 43 | #include <linux/watchdog.h> |
| 44 | #include <linux/miscdevice.h> |
| 45 | #include <linux/uaccess.h> |
| 46 | #include <linux/kref.h> |
| 47 | #include <linux/notifier.h> |
| 48 | #include <linux/reboot.h> |
Jean Delvare | dcd8f39 | 2012-10-10 15:25:56 +0200 | [diff] [blame] | 49 | #include <linux/jiffies.h> |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 50 | |
| 51 | /* Default values */ |
| 52 | #define WATCHDOG_TIMEOUT 2 /* 2 minute default timeout */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 53 | |
| 54 | /* Addresses to scan */ |
Mark M. Hoffman | 25e9c86 | 2008-02-17 22:28:03 -0500 | [diff] [blame] | 55 | static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, |
| 56 | I2C_CLIENT_END }; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 57 | |
| 58 | /* Insmod parameters */ |
Jean Delvare | 3aed198 | 2009-01-07 16:37:32 +0100 | [diff] [blame] | 59 | |
| 60 | static unsigned short force_subclients[4]; |
| 61 | module_param_array(force_subclients, short, NULL, 0); |
Guenter Roeck | b55f375 | 2013-01-10 10:01:24 -0800 | [diff] [blame] | 62 | MODULE_PARM_DESC(force_subclients, |
| 63 | "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}"); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 64 | |
Rusty Russell | 90ab5ee | 2012-01-13 09:32:20 +1030 | [diff] [blame] | 65 | static bool reset; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 66 | module_param(reset, bool, 0); |
| 67 | MODULE_PARM_DESC(reset, "Set to 1 to reset chip, not recommended"); |
| 68 | |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 69 | static int timeout = WATCHDOG_TIMEOUT; /* default timeout in minutes */ |
| 70 | module_param(timeout, int, 0); |
| 71 | MODULE_PARM_DESC(timeout, |
| 72 | "Watchdog timeout in minutes. 2<= timeout <=255 (default=" |
| 73 | __MODULE_STRING(WATCHDOG_TIMEOUT) ")"); |
| 74 | |
Wim Van Sebroeck | 86a1e18 | 2012-03-05 16:51:11 +0100 | [diff] [blame] | 75 | static bool nowayout = WATCHDOG_NOWAYOUT; |
| 76 | module_param(nowayout, bool, 0); |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 77 | MODULE_PARM_DESC(nowayout, |
| 78 | "Watchdog cannot be stopped once started (default=" |
| 79 | __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); |
| 80 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 81 | /* |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 82 | * Address 0x00, 0x0d, 0x0e, 0x0f in all three banks are reserved |
| 83 | * as ID, Bank Select registers |
| 84 | */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 85 | #define W83793_REG_BANKSEL 0x00 |
| 86 | #define W83793_REG_VENDORID 0x0d |
| 87 | #define W83793_REG_CHIPID 0x0e |
| 88 | #define W83793_REG_DEVICEID 0x0f |
| 89 | |
| 90 | #define W83793_REG_CONFIG 0x40 |
| 91 | #define W83793_REG_MFC 0x58 |
| 92 | #define W83793_REG_FANIN_CTRL 0x5c |
| 93 | #define W83793_REG_FANIN_SEL 0x5d |
| 94 | #define W83793_REG_I2C_ADDR 0x0b |
| 95 | #define W83793_REG_I2C_SUBADDR 0x0c |
| 96 | #define W83793_REG_VID_INA 0x05 |
| 97 | #define W83793_REG_VID_INB 0x06 |
| 98 | #define W83793_REG_VID_LATCHA 0x07 |
| 99 | #define W83793_REG_VID_LATCHB 0x08 |
| 100 | #define W83793_REG_VID_CTRL 0x59 |
| 101 | |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 102 | #define W83793_REG_WDT_LOCK 0x01 |
| 103 | #define W83793_REG_WDT_ENABLE 0x02 |
| 104 | #define W83793_REG_WDT_STATUS 0x03 |
| 105 | #define W83793_REG_WDT_TIMEOUT 0x04 |
| 106 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 107 | static u16 W83793_REG_TEMP_MODE[2] = { 0x5e, 0x5f }; |
| 108 | |
| 109 | #define TEMP_READ 0 |
| 110 | #define TEMP_CRIT 1 |
| 111 | #define TEMP_CRIT_HYST 2 |
| 112 | #define TEMP_WARN 3 |
| 113 | #define TEMP_WARN_HYST 4 |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 114 | /* |
| 115 | * only crit and crit_hyst affect real-time alarm status |
| 116 | * current crit crit_hyst warn warn_hyst |
| 117 | */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 118 | static u16 W83793_REG_TEMP[][5] = { |
| 119 | {0x1c, 0x78, 0x79, 0x7a, 0x7b}, |
| 120 | {0x1d, 0x7c, 0x7d, 0x7e, 0x7f}, |
| 121 | {0x1e, 0x80, 0x81, 0x82, 0x83}, |
| 122 | {0x1f, 0x84, 0x85, 0x86, 0x87}, |
| 123 | {0x20, 0x88, 0x89, 0x8a, 0x8b}, |
| 124 | {0x21, 0x8c, 0x8d, 0x8e, 0x8f}, |
| 125 | }; |
| 126 | |
| 127 | #define W83793_REG_TEMP_LOW_BITS 0x22 |
| 128 | |
| 129 | #define W83793_REG_BEEP(index) (0x53 + (index)) |
| 130 | #define W83793_REG_ALARM(index) (0x4b + (index)) |
| 131 | |
| 132 | #define W83793_REG_CLR_CHASSIS 0x4a /* SMI MASK4 */ |
| 133 | #define W83793_REG_IRQ_CTRL 0x50 |
| 134 | #define W83793_REG_OVT_CTRL 0x51 |
| 135 | #define W83793_REG_OVT_BEEP 0x52 |
| 136 | |
| 137 | #define IN_READ 0 |
| 138 | #define IN_MAX 1 |
| 139 | #define IN_LOW 2 |
| 140 | static const u16 W83793_REG_IN[][3] = { |
| 141 | /* Current, High, Low */ |
| 142 | {0x10, 0x60, 0x61}, /* Vcore A */ |
| 143 | {0x11, 0x62, 0x63}, /* Vcore B */ |
| 144 | {0x12, 0x64, 0x65}, /* Vtt */ |
| 145 | {0x14, 0x6a, 0x6b}, /* VSEN1 */ |
| 146 | {0x15, 0x6c, 0x6d}, /* VSEN2 */ |
| 147 | {0x16, 0x6e, 0x6f}, /* +3VSEN */ |
| 148 | {0x17, 0x70, 0x71}, /* +12VSEN */ |
| 149 | {0x18, 0x72, 0x73}, /* 5VDD */ |
| 150 | {0x19, 0x74, 0x75}, /* 5VSB */ |
| 151 | {0x1a, 0x76, 0x77}, /* VBAT */ |
| 152 | }; |
| 153 | |
| 154 | /* Low Bits of Vcore A/B Vtt Read/High/Low */ |
| 155 | static const u16 W83793_REG_IN_LOW_BITS[] = { 0x1b, 0x68, 0x69 }; |
| 156 | static u8 scale_in[] = { 2, 2, 2, 16, 16, 16, 8, 24, 24, 16 }; |
Gong Jun | ddca933 | 2007-01-18 22:14:23 +0100 | [diff] [blame] | 157 | static u8 scale_in_add[] = { 0, 0, 0, 0, 0, 0, 0, 150, 150, 0 }; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 158 | |
| 159 | #define W83793_REG_FAN(index) (0x23 + 2 * (index)) /* High byte */ |
| 160 | #define W83793_REG_FAN_MIN(index) (0x90 + 2 * (index)) /* High byte */ |
| 161 | |
| 162 | #define W83793_REG_PWM_DEFAULT 0xb2 |
| 163 | #define W83793_REG_PWM_ENABLE 0x207 |
| 164 | #define W83793_REG_PWM_UPTIME 0xc3 /* Unit in 0.1 second */ |
| 165 | #define W83793_REG_PWM_DOWNTIME 0xc4 /* Unit in 0.1 second */ |
| 166 | #define W83793_REG_TEMP_CRITICAL 0xc5 |
| 167 | |
| 168 | #define PWM_DUTY 0 |
| 169 | #define PWM_START 1 |
| 170 | #define PWM_NONSTOP 2 |
Nicolas Kaiser | 5aebefb | 2007-11-07 13:28:59 +0100 | [diff] [blame] | 171 | #define PWM_STOP_TIME 3 |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 172 | #define W83793_REG_PWM(index, nr) (((nr) == 0 ? 0xb3 : \ |
| 173 | (nr) == 1 ? 0x220 : 0x218) + (index)) |
| 174 | |
| 175 | /* bit field, fan1 is bit0, fan2 is bit1 ... */ |
| 176 | #define W83793_REG_TEMP_FAN_MAP(index) (0x201 + (index)) |
| 177 | #define W83793_REG_TEMP_TOL(index) (0x208 + (index)) |
| 178 | #define W83793_REG_TEMP_CRUISE(index) (0x210 + (index)) |
| 179 | #define W83793_REG_PWM_STOP_TIME(index) (0x228 + (index)) |
| 180 | #define W83793_REG_SF2_TEMP(index, nr) (0x230 + ((index) << 4) + (nr)) |
| 181 | #define W83793_REG_SF2_PWM(index, nr) (0x238 + ((index) << 4) + (nr)) |
| 182 | |
| 183 | static inline unsigned long FAN_FROM_REG(u16 val) |
| 184 | { |
| 185 | if ((val >= 0xfff) || (val == 0)) |
| 186 | return 0; |
Frans Meulenbroeks | 7fe83ad | 2012-01-05 19:50:18 +0100 | [diff] [blame] | 187 | return 1350000UL / val; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 188 | } |
| 189 | |
| 190 | static inline u16 FAN_TO_REG(long rpm) |
| 191 | { |
| 192 | if (rpm <= 0) |
| 193 | return 0x0fff; |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 194 | return clamp_val((1350000 + (rpm >> 1)) / rpm, 1, 0xffe); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 195 | } |
| 196 | |
| 197 | static inline unsigned long TIME_FROM_REG(u8 reg) |
| 198 | { |
Frans Meulenbroeks | 7fe83ad | 2012-01-05 19:50:18 +0100 | [diff] [blame] | 199 | return reg * 100; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 200 | } |
| 201 | |
| 202 | static inline u8 TIME_TO_REG(unsigned long val) |
| 203 | { |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 204 | return clamp_val((val + 50) / 100, 0, 0xff); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 205 | } |
| 206 | |
| 207 | static inline long TEMP_FROM_REG(s8 reg) |
| 208 | { |
Frans Meulenbroeks | 7fe83ad | 2012-01-05 19:50:18 +0100 | [diff] [blame] | 209 | return reg * 1000; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 210 | } |
| 211 | |
| 212 | static inline s8 TEMP_TO_REG(long val, s8 min, s8 max) |
| 213 | { |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 214 | return clamp_val((val + (val < 0 ? -500 : 500)) / 1000, min, max); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 215 | } |
| 216 | |
| 217 | struct w83793_data { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 218 | struct i2c_client *lm75[2]; |
Tony Jones | 1beeffe | 2007-08-20 13:46:20 -0700 | [diff] [blame] | 219 | struct device *hwmon_dev; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 220 | struct mutex update_lock; |
| 221 | char valid; /* !=0 if following fields are valid */ |
| 222 | unsigned long last_updated; /* In jiffies */ |
| 223 | unsigned long last_nonvolatile; /* In jiffies, last time we update the |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 224 | * nonvolatile registers |
| 225 | */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 226 | |
| 227 | u8 bank; |
| 228 | u8 vrm; |
| 229 | u8 vid[2]; |
| 230 | u8 in[10][3]; /* Register value, read/high/low */ |
| 231 | u8 in_low_bits[3]; /* Additional resolution for VCore A/B Vtt */ |
| 232 | |
| 233 | u16 has_fan; /* Only fan1- fan5 has own pins */ |
| 234 | u16 fan[12]; /* Register value combine */ |
| 235 | u16 fan_min[12]; /* Register value combine */ |
| 236 | |
| 237 | s8 temp[6][5]; /* current, crit, crit_hyst,warn, warn_hyst */ |
| 238 | u8 temp_low_bits; /* Additional resolution TD1-TD4 */ |
| 239 | u8 temp_mode[2]; /* byte 0: Temp D1-D4 mode each has 2 bits |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 240 | * byte 1: Temp R1,R2 mode, each has 1 bit |
| 241 | */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 242 | u8 temp_critical; /* If reached all fan will be at full speed */ |
| 243 | u8 temp_fan_map[6]; /* Temp controls which pwm fan, bit field */ |
| 244 | |
| 245 | u8 has_pwm; |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 246 | u8 has_temp; |
Gong Jun | c70a8c3 | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 247 | u8 has_vid; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 248 | u8 pwm_enable; /* Register value, each Temp has 1 bit */ |
| 249 | u8 pwm_uptime; /* Register value */ |
| 250 | u8 pwm_downtime; /* Register value */ |
| 251 | u8 pwm_default; /* All fan default pwm, next poweron valid */ |
| 252 | u8 pwm[8][3]; /* Register value */ |
| 253 | u8 pwm_stop_time[8]; |
| 254 | u8 temp_cruise[6]; |
| 255 | |
| 256 | u8 alarms[5]; /* realtime status registers */ |
| 257 | u8 beeps[5]; |
| 258 | u8 beep_enable; |
| 259 | u8 tolerance[3]; /* Temp tolerance(Smart Fan I/II) */ |
| 260 | u8 sf2_pwm[6][7]; /* Smart FanII: Fan duty cycle */ |
| 261 | u8 sf2_temp[6][7]; /* Smart FanII: Temp level point */ |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 262 | |
| 263 | /* watchdog */ |
| 264 | struct i2c_client *client; |
| 265 | struct mutex watchdog_lock; |
| 266 | struct list_head list; /* member of the watchdog_data_list */ |
| 267 | struct kref kref; |
| 268 | struct miscdevice watchdog_miscdev; |
| 269 | unsigned long watchdog_is_open; |
| 270 | char watchdog_expect_close; |
| 271 | char watchdog_name[10]; /* must be unique to avoid sysfs conflict */ |
| 272 | unsigned int watchdog_caused_reboot; |
| 273 | int watchdog_timeout; /* watchdog timeout in minutes */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 274 | }; |
| 275 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 276 | /* |
| 277 | * Somewhat ugly :( global data pointer list with all devices, so that |
| 278 | * we can find our device data as when using misc_register. There is no |
| 279 | * other method to get to one's device data from the open file-op and |
| 280 | * for usage in the reboot notifier callback. |
| 281 | */ |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 282 | static LIST_HEAD(watchdog_data_list); |
| 283 | |
| 284 | /* Note this lock not only protect list access, but also data.kref access */ |
| 285 | static DEFINE_MUTEX(watchdog_data_mutex); |
| 286 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 287 | /* |
| 288 | * Release our data struct when we're detached from the i2c client *and* all |
| 289 | * references to our watchdog device are released |
| 290 | */ |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 291 | static void w83793_release_resources(struct kref *ref) |
| 292 | { |
| 293 | struct w83793_data *data = container_of(ref, struct w83793_data, kref); |
| 294 | kfree(data); |
| 295 | } |
| 296 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 297 | static u8 w83793_read_value(struct i2c_client *client, u16 reg); |
| 298 | static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value); |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 299 | static int w83793_probe(struct i2c_client *client, |
| 300 | const struct i2c_device_id *id); |
Jean Delvare | 310ec79 | 2009-12-14 21:17:23 +0100 | [diff] [blame] | 301 | static int w83793_detect(struct i2c_client *client, |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 302 | struct i2c_board_info *info); |
| 303 | static int w83793_remove(struct i2c_client *client); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 304 | static void w83793_init_client(struct i2c_client *client); |
| 305 | static void w83793_update_nonvolatile(struct device *dev); |
| 306 | static struct w83793_data *w83793_update_device(struct device *dev); |
| 307 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 308 | static const struct i2c_device_id w83793_id[] = { |
Jean Delvare | 1f86df4 | 2009-12-14 21:17:26 +0100 | [diff] [blame] | 309 | { "w83793", 0 }, |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 310 | { } |
| 311 | }; |
| 312 | MODULE_DEVICE_TABLE(i2c, w83793_id); |
| 313 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 314 | static struct i2c_driver w83793_driver = { |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 315 | .class = I2C_CLASS_HWMON, |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 316 | .driver = { |
| 317 | .name = "w83793", |
| 318 | }, |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 319 | .probe = w83793_probe, |
| 320 | .remove = w83793_remove, |
| 321 | .id_table = w83793_id, |
| 322 | .detect = w83793_detect, |
Jean Delvare | c3813d6 | 2009-12-14 21:17:25 +0100 | [diff] [blame] | 323 | .address_list = normal_i2c, |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 324 | }; |
| 325 | |
| 326 | static ssize_t |
| 327 | show_vrm(struct device *dev, struct device_attribute *attr, char *buf) |
| 328 | { |
Jean Delvare | 8f74efe | 2007-12-01 11:25:33 +0100 | [diff] [blame] | 329 | struct w83793_data *data = dev_get_drvdata(dev); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 330 | return sprintf(buf, "%d\n", data->vrm); |
| 331 | } |
| 332 | |
| 333 | static ssize_t |
| 334 | show_vid(struct device *dev, struct device_attribute *attr, char *buf) |
| 335 | { |
| 336 | struct w83793_data *data = w83793_update_device(dev); |
| 337 | struct sensor_device_attribute_2 *sensor_attr = |
| 338 | to_sensor_dev_attr_2(attr); |
| 339 | int index = sensor_attr->index; |
| 340 | |
| 341 | return sprintf(buf, "%d\n", vid_from_reg(data->vid[index], data->vrm)); |
| 342 | } |
| 343 | |
| 344 | static ssize_t |
| 345 | store_vrm(struct device *dev, struct device_attribute *attr, |
| 346 | const char *buf, size_t count) |
| 347 | { |
Jean Delvare | 8f74efe | 2007-12-01 11:25:33 +0100 | [diff] [blame] | 348 | struct w83793_data *data = dev_get_drvdata(dev); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 349 | unsigned long val; |
| 350 | int err; |
| 351 | |
| 352 | err = kstrtoul(buf, 10, &val); |
| 353 | if (err) |
| 354 | return err; |
| 355 | |
| 356 | data->vrm = val; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 357 | return count; |
| 358 | } |
| 359 | |
| 360 | #define ALARM_STATUS 0 |
| 361 | #define BEEP_ENABLE 1 |
| 362 | static ssize_t |
| 363 | show_alarm_beep(struct device *dev, struct device_attribute *attr, char *buf) |
| 364 | { |
| 365 | struct w83793_data *data = w83793_update_device(dev); |
| 366 | struct sensor_device_attribute_2 *sensor_attr = |
| 367 | to_sensor_dev_attr_2(attr); |
| 368 | int nr = sensor_attr->nr; |
| 369 | int index = sensor_attr->index >> 3; |
| 370 | int bit = sensor_attr->index & 0x07; |
| 371 | u8 val; |
| 372 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 373 | if (nr == ALARM_STATUS) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 374 | val = (data->alarms[index] >> (bit)) & 1; |
| 375 | } else { /* BEEP_ENABLE */ |
| 376 | val = (data->beeps[index] >> (bit)) & 1; |
| 377 | } |
| 378 | |
| 379 | return sprintf(buf, "%u\n", val); |
| 380 | } |
| 381 | |
| 382 | static ssize_t |
| 383 | store_beep(struct device *dev, struct device_attribute *attr, |
| 384 | const char *buf, size_t count) |
| 385 | { |
| 386 | struct i2c_client *client = to_i2c_client(dev); |
| 387 | struct w83793_data *data = i2c_get_clientdata(client); |
| 388 | struct sensor_device_attribute_2 *sensor_attr = |
| 389 | to_sensor_dev_attr_2(attr); |
| 390 | int index = sensor_attr->index >> 3; |
| 391 | int shift = sensor_attr->index & 0x07; |
| 392 | u8 beep_bit = 1 << shift; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 393 | unsigned long val; |
| 394 | int err; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 395 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 396 | err = kstrtoul(buf, 10, &val); |
| 397 | if (err) |
| 398 | return err; |
| 399 | |
| 400 | if (val > 1) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 401 | return -EINVAL; |
| 402 | |
| 403 | mutex_lock(&data->update_lock); |
| 404 | data->beeps[index] = w83793_read_value(client, W83793_REG_BEEP(index)); |
| 405 | data->beeps[index] &= ~beep_bit; |
| 406 | data->beeps[index] |= val << shift; |
| 407 | w83793_write_value(client, W83793_REG_BEEP(index), data->beeps[index]); |
| 408 | mutex_unlock(&data->update_lock); |
| 409 | |
| 410 | return count; |
| 411 | } |
| 412 | |
| 413 | static ssize_t |
| 414 | show_beep_enable(struct device *dev, struct device_attribute *attr, char *buf) |
| 415 | { |
| 416 | struct w83793_data *data = w83793_update_device(dev); |
| 417 | return sprintf(buf, "%u\n", (data->beep_enable >> 1) & 0x01); |
| 418 | } |
| 419 | |
| 420 | static ssize_t |
| 421 | store_beep_enable(struct device *dev, struct device_attribute *attr, |
| 422 | const char *buf, size_t count) |
| 423 | { |
| 424 | struct i2c_client *client = to_i2c_client(dev); |
| 425 | struct w83793_data *data = i2c_get_clientdata(client); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 426 | unsigned long val; |
| 427 | int err; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 428 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 429 | err = kstrtoul(buf, 10, &val); |
| 430 | if (err) |
| 431 | return err; |
| 432 | |
| 433 | if (val > 1) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 434 | return -EINVAL; |
| 435 | |
| 436 | mutex_lock(&data->update_lock); |
| 437 | data->beep_enable = w83793_read_value(client, W83793_REG_OVT_BEEP) |
| 438 | & 0xfd; |
| 439 | data->beep_enable |= val << 1; |
| 440 | w83793_write_value(client, W83793_REG_OVT_BEEP, data->beep_enable); |
| 441 | mutex_unlock(&data->update_lock); |
| 442 | |
| 443 | return count; |
| 444 | } |
| 445 | |
Jean Delvare | a516dc3 | 2011-01-12 21:55:10 +0100 | [diff] [blame] | 446 | /* Write 0 to clear chassis alarm */ |
| 447 | static ssize_t |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 448 | store_chassis_clear(struct device *dev, |
| 449 | struct device_attribute *attr, const char *buf, |
| 450 | size_t count) |
| 451 | { |
| 452 | struct i2c_client *client = to_i2c_client(dev); |
| 453 | struct w83793_data *data = i2c_get_clientdata(client); |
Jean Delvare | a516dc3 | 2011-01-12 21:55:10 +0100 | [diff] [blame] | 454 | unsigned long val; |
| 455 | u8 reg; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 456 | int err; |
Jean Delvare | a516dc3 | 2011-01-12 21:55:10 +0100 | [diff] [blame] | 457 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 458 | err = kstrtoul(buf, 10, &val); |
| 459 | if (err) |
| 460 | return err; |
| 461 | if (val) |
Jean Delvare | a516dc3 | 2011-01-12 21:55:10 +0100 | [diff] [blame] | 462 | return -EINVAL; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 463 | |
| 464 | mutex_lock(&data->update_lock); |
Jean Delvare | a516dc3 | 2011-01-12 21:55:10 +0100 | [diff] [blame] | 465 | reg = w83793_read_value(client, W83793_REG_CLR_CHASSIS); |
| 466 | w83793_write_value(client, W83793_REG_CLR_CHASSIS, reg | 0x80); |
| 467 | data->valid = 0; /* Force cache refresh */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 468 | mutex_unlock(&data->update_lock); |
| 469 | return count; |
| 470 | } |
| 471 | |
| 472 | #define FAN_INPUT 0 |
| 473 | #define FAN_MIN 1 |
| 474 | static ssize_t |
| 475 | show_fan(struct device *dev, struct device_attribute *attr, char *buf) |
| 476 | { |
| 477 | struct sensor_device_attribute_2 *sensor_attr = |
| 478 | to_sensor_dev_attr_2(attr); |
| 479 | int nr = sensor_attr->nr; |
| 480 | int index = sensor_attr->index; |
| 481 | struct w83793_data *data = w83793_update_device(dev); |
| 482 | u16 val; |
| 483 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 484 | if (nr == FAN_INPUT) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 485 | val = data->fan[index] & 0x0fff; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 486 | else |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 487 | val = data->fan_min[index] & 0x0fff; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 488 | |
| 489 | return sprintf(buf, "%lu\n", FAN_FROM_REG(val)); |
| 490 | } |
| 491 | |
| 492 | static ssize_t |
| 493 | store_fan_min(struct device *dev, struct device_attribute *attr, |
| 494 | const char *buf, size_t count) |
| 495 | { |
| 496 | struct sensor_device_attribute_2 *sensor_attr = |
| 497 | to_sensor_dev_attr_2(attr); |
| 498 | int index = sensor_attr->index; |
| 499 | struct i2c_client *client = to_i2c_client(dev); |
| 500 | struct w83793_data *data = i2c_get_clientdata(client); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 501 | unsigned long val; |
| 502 | int err; |
| 503 | |
| 504 | err = kstrtoul(buf, 10, &val); |
| 505 | if (err) |
| 506 | return err; |
| 507 | val = FAN_TO_REG(val); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 508 | |
| 509 | mutex_lock(&data->update_lock); |
| 510 | data->fan_min[index] = val; |
| 511 | w83793_write_value(client, W83793_REG_FAN_MIN(index), |
| 512 | (val >> 8) & 0xff); |
| 513 | w83793_write_value(client, W83793_REG_FAN_MIN(index) + 1, val & 0xff); |
| 514 | mutex_unlock(&data->update_lock); |
| 515 | |
| 516 | return count; |
| 517 | } |
| 518 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 519 | static ssize_t |
| 520 | show_pwm(struct device *dev, struct device_attribute *attr, char *buf) |
| 521 | { |
| 522 | struct sensor_device_attribute_2 *sensor_attr = |
| 523 | to_sensor_dev_attr_2(attr); |
| 524 | struct w83793_data *data = w83793_update_device(dev); |
| 525 | u16 val; |
| 526 | int nr = sensor_attr->nr; |
| 527 | int index = sensor_attr->index; |
| 528 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 529 | if (nr == PWM_STOP_TIME) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 530 | val = TIME_FROM_REG(data->pwm_stop_time[index]); |
| 531 | else |
| 532 | val = (data->pwm[index][nr] & 0x3f) << 2; |
| 533 | |
| 534 | return sprintf(buf, "%d\n", val); |
| 535 | } |
| 536 | |
| 537 | static ssize_t |
| 538 | store_pwm(struct device *dev, struct device_attribute *attr, |
| 539 | const char *buf, size_t count) |
| 540 | { |
| 541 | struct i2c_client *client = to_i2c_client(dev); |
| 542 | struct w83793_data *data = i2c_get_clientdata(client); |
| 543 | struct sensor_device_attribute_2 *sensor_attr = |
| 544 | to_sensor_dev_attr_2(attr); |
| 545 | int nr = sensor_attr->nr; |
| 546 | int index = sensor_attr->index; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 547 | unsigned long val; |
| 548 | int err; |
| 549 | |
| 550 | err = kstrtoul(buf, 10, &val); |
| 551 | if (err) |
| 552 | return err; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 553 | |
| 554 | mutex_lock(&data->update_lock); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 555 | if (nr == PWM_STOP_TIME) { |
| 556 | val = TIME_TO_REG(val); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 557 | data->pwm_stop_time[index] = val; |
| 558 | w83793_write_value(client, W83793_REG_PWM_STOP_TIME(index), |
| 559 | val); |
| 560 | } else { |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 561 | val = clamp_val(val, 0, 0xff) >> 2; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 562 | data->pwm[index][nr] = |
| 563 | w83793_read_value(client, W83793_REG_PWM(index, nr)) & 0xc0; |
| 564 | data->pwm[index][nr] |= val; |
| 565 | w83793_write_value(client, W83793_REG_PWM(index, nr), |
| 566 | data->pwm[index][nr]); |
| 567 | } |
| 568 | |
| 569 | mutex_unlock(&data->update_lock); |
| 570 | return count; |
| 571 | } |
| 572 | |
| 573 | static ssize_t |
| 574 | show_temp(struct device *dev, struct device_attribute *attr, char *buf) |
| 575 | { |
| 576 | struct sensor_device_attribute_2 *sensor_attr = |
| 577 | to_sensor_dev_attr_2(attr); |
| 578 | int nr = sensor_attr->nr; |
| 579 | int index = sensor_attr->index; |
| 580 | struct w83793_data *data = w83793_update_device(dev); |
| 581 | long temp = TEMP_FROM_REG(data->temp[index][nr]); |
| 582 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 583 | if (nr == TEMP_READ && index < 4) { /* Only TD1-TD4 have low bits */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 584 | int low = ((data->temp_low_bits >> (index * 2)) & 0x03) * 250; |
| 585 | temp += temp > 0 ? low : -low; |
| 586 | } |
| 587 | return sprintf(buf, "%ld\n", temp); |
| 588 | } |
| 589 | |
| 590 | static ssize_t |
| 591 | store_temp(struct device *dev, struct device_attribute *attr, |
| 592 | const char *buf, size_t count) |
| 593 | { |
| 594 | struct sensor_device_attribute_2 *sensor_attr = |
| 595 | to_sensor_dev_attr_2(attr); |
| 596 | int nr = sensor_attr->nr; |
| 597 | int index = sensor_attr->index; |
| 598 | struct i2c_client *client = to_i2c_client(dev); |
| 599 | struct w83793_data *data = i2c_get_clientdata(client); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 600 | long tmp; |
| 601 | int err; |
| 602 | |
| 603 | err = kstrtol(buf, 10, &tmp); |
| 604 | if (err) |
| 605 | return err; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 606 | |
| 607 | mutex_lock(&data->update_lock); |
| 608 | data->temp[index][nr] = TEMP_TO_REG(tmp, -128, 127); |
| 609 | w83793_write_value(client, W83793_REG_TEMP[index][nr], |
| 610 | data->temp[index][nr]); |
| 611 | mutex_unlock(&data->update_lock); |
| 612 | return count; |
| 613 | } |
| 614 | |
| 615 | /* |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 616 | * TD1-TD4 |
| 617 | * each has 4 mode:(2 bits) |
| 618 | * 0: Stop monitor |
| 619 | * 1: Use internal temp sensor(default) |
| 620 | * 2: Reserved |
| 621 | * 3: Use sensor in Intel CPU and get result by PECI |
| 622 | * |
| 623 | * TR1-TR2 |
| 624 | * each has 2 mode:(1 bit) |
| 625 | * 0: Disable temp sensor monitor |
| 626 | * 1: To enable temp sensors monitor |
| 627 | */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 628 | |
Gong Jun | ddca933 | 2007-01-18 22:14:23 +0100 | [diff] [blame] | 629 | /* 0 disable, 6 PECI */ |
| 630 | static u8 TO_TEMP_MODE[] = { 0, 0, 0, 6 }; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 631 | |
| 632 | static ssize_t |
| 633 | show_temp_mode(struct device *dev, struct device_attribute *attr, char *buf) |
| 634 | { |
| 635 | struct w83793_data *data = w83793_update_device(dev); |
| 636 | struct sensor_device_attribute_2 *sensor_attr = |
| 637 | to_sensor_dev_attr_2(attr); |
| 638 | int index = sensor_attr->index; |
| 639 | u8 mask = (index < 4) ? 0x03 : 0x01; |
| 640 | u8 shift = (index < 4) ? (2 * index) : (index - 4); |
| 641 | u8 tmp; |
| 642 | index = (index < 4) ? 0 : 1; |
| 643 | |
| 644 | tmp = (data->temp_mode[index] >> shift) & mask; |
| 645 | |
| 646 | /* for the internal sensor, found out if diode or thermistor */ |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 647 | if (tmp == 1) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 648 | tmp = index == 0 ? 3 : 4; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 649 | else |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 650 | tmp = TO_TEMP_MODE[tmp]; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 651 | |
| 652 | return sprintf(buf, "%d\n", tmp); |
| 653 | } |
| 654 | |
| 655 | static ssize_t |
| 656 | store_temp_mode(struct device *dev, struct device_attribute *attr, |
| 657 | const char *buf, size_t count) |
| 658 | { |
| 659 | struct i2c_client *client = to_i2c_client(dev); |
| 660 | struct w83793_data *data = i2c_get_clientdata(client); |
| 661 | struct sensor_device_attribute_2 *sensor_attr = |
| 662 | to_sensor_dev_attr_2(attr); |
| 663 | int index = sensor_attr->index; |
| 664 | u8 mask = (index < 4) ? 0x03 : 0x01; |
| 665 | u8 shift = (index < 4) ? (2 * index) : (index - 4); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 666 | unsigned long val; |
| 667 | int err; |
| 668 | |
| 669 | err = kstrtoul(buf, 10, &val); |
| 670 | if (err) |
| 671 | return err; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 672 | |
| 673 | /* transform the sysfs interface values into table above */ |
Gong Jun | ddca933 | 2007-01-18 22:14:23 +0100 | [diff] [blame] | 674 | if ((val == 6) && (index < 4)) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 675 | val -= 3; |
| 676 | } else if ((val == 3 && index < 4) |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 677 | || (val == 4 && index >= 4)) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 678 | /* transform diode or thermistor into internal enable */ |
| 679 | val = !!val; |
| 680 | } else { |
| 681 | return -EINVAL; |
| 682 | } |
| 683 | |
| 684 | index = (index < 4) ? 0 : 1; |
| 685 | mutex_lock(&data->update_lock); |
| 686 | data->temp_mode[index] = |
| 687 | w83793_read_value(client, W83793_REG_TEMP_MODE[index]); |
| 688 | data->temp_mode[index] &= ~(mask << shift); |
| 689 | data->temp_mode[index] |= val << shift; |
| 690 | w83793_write_value(client, W83793_REG_TEMP_MODE[index], |
| 691 | data->temp_mode[index]); |
| 692 | mutex_unlock(&data->update_lock); |
| 693 | |
| 694 | return count; |
| 695 | } |
| 696 | |
| 697 | #define SETUP_PWM_DEFAULT 0 |
| 698 | #define SETUP_PWM_UPTIME 1 /* Unit in 0.1s */ |
| 699 | #define SETUP_PWM_DOWNTIME 2 /* Unit in 0.1s */ |
| 700 | #define SETUP_TEMP_CRITICAL 3 |
| 701 | static ssize_t |
| 702 | show_sf_setup(struct device *dev, struct device_attribute *attr, char *buf) |
| 703 | { |
| 704 | struct sensor_device_attribute_2 *sensor_attr = |
| 705 | to_sensor_dev_attr_2(attr); |
| 706 | int nr = sensor_attr->nr; |
| 707 | struct w83793_data *data = w83793_update_device(dev); |
| 708 | u32 val = 0; |
| 709 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 710 | if (nr == SETUP_PWM_DEFAULT) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 711 | val = (data->pwm_default & 0x3f) << 2; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 712 | else if (nr == SETUP_PWM_UPTIME) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 713 | val = TIME_FROM_REG(data->pwm_uptime); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 714 | else if (nr == SETUP_PWM_DOWNTIME) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 715 | val = TIME_FROM_REG(data->pwm_downtime); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 716 | else if (nr == SETUP_TEMP_CRITICAL) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 717 | val = TEMP_FROM_REG(data->temp_critical & 0x7f); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 718 | |
| 719 | return sprintf(buf, "%d\n", val); |
| 720 | } |
| 721 | |
| 722 | static ssize_t |
| 723 | store_sf_setup(struct device *dev, struct device_attribute *attr, |
| 724 | const char *buf, size_t count) |
| 725 | { |
| 726 | struct sensor_device_attribute_2 *sensor_attr = |
| 727 | to_sensor_dev_attr_2(attr); |
| 728 | int nr = sensor_attr->nr; |
| 729 | struct i2c_client *client = to_i2c_client(dev); |
| 730 | struct w83793_data *data = i2c_get_clientdata(client); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 731 | long val; |
| 732 | int err; |
| 733 | |
| 734 | err = kstrtol(buf, 10, &val); |
| 735 | if (err) |
| 736 | return err; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 737 | |
| 738 | mutex_lock(&data->update_lock); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 739 | if (nr == SETUP_PWM_DEFAULT) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 740 | data->pwm_default = |
| 741 | w83793_read_value(client, W83793_REG_PWM_DEFAULT) & 0xc0; |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 742 | data->pwm_default |= clamp_val(val, 0, 0xff) >> 2; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 743 | w83793_write_value(client, W83793_REG_PWM_DEFAULT, |
| 744 | data->pwm_default); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 745 | } else if (nr == SETUP_PWM_UPTIME) { |
| 746 | data->pwm_uptime = TIME_TO_REG(val); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 747 | data->pwm_uptime += data->pwm_uptime == 0 ? 1 : 0; |
| 748 | w83793_write_value(client, W83793_REG_PWM_UPTIME, |
| 749 | data->pwm_uptime); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 750 | } else if (nr == SETUP_PWM_DOWNTIME) { |
| 751 | data->pwm_downtime = TIME_TO_REG(val); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 752 | data->pwm_downtime += data->pwm_downtime == 0 ? 1 : 0; |
| 753 | w83793_write_value(client, W83793_REG_PWM_DOWNTIME, |
| 754 | data->pwm_downtime); |
| 755 | } else { /* SETUP_TEMP_CRITICAL */ |
| 756 | data->temp_critical = |
| 757 | w83793_read_value(client, W83793_REG_TEMP_CRITICAL) & 0x80; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 758 | data->temp_critical |= TEMP_TO_REG(val, 0, 0x7f); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 759 | w83793_write_value(client, W83793_REG_TEMP_CRITICAL, |
| 760 | data->temp_critical); |
| 761 | } |
| 762 | |
| 763 | mutex_unlock(&data->update_lock); |
| 764 | return count; |
| 765 | } |
| 766 | |
| 767 | /* |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 768 | * Temp SmartFan control |
| 769 | * TEMP_FAN_MAP |
| 770 | * Temp channel control which pwm fan, bitfield, bit 0 indicate pwm1... |
| 771 | * It's possible two or more temp channels control the same fan, w83793 |
| 772 | * always prefers to pick the most critical request and applies it to |
| 773 | * the related Fan. |
| 774 | * It's possible one fan is not in any mapping of 6 temp channels, this |
| 775 | * means the fan is manual mode |
| 776 | * |
| 777 | * TEMP_PWM_ENABLE |
| 778 | * Each temp channel has its own SmartFan mode, and temp channel |
| 779 | * control fans that are set by TEMP_FAN_MAP |
| 780 | * 0: SmartFanII mode |
| 781 | * 1: Thermal Cruise Mode |
| 782 | * |
| 783 | * TEMP_CRUISE |
| 784 | * Target temperature in thermal cruise mode, w83793 will try to turn |
| 785 | * fan speed to keep the temperature of target device around this |
| 786 | * temperature. |
| 787 | * |
| 788 | * TEMP_TOLERANCE |
| 789 | * If Temp higher or lower than target with this tolerance, w83793 |
| 790 | * will take actions to speed up or slow down the fan to keep the |
| 791 | * temperature within the tolerance range. |
| 792 | */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 793 | |
| 794 | #define TEMP_FAN_MAP 0 |
| 795 | #define TEMP_PWM_ENABLE 1 |
| 796 | #define TEMP_CRUISE 2 |
| 797 | #define TEMP_TOLERANCE 3 |
| 798 | static ssize_t |
| 799 | show_sf_ctrl(struct device *dev, struct device_attribute *attr, char *buf) |
| 800 | { |
| 801 | struct sensor_device_attribute_2 *sensor_attr = |
| 802 | to_sensor_dev_attr_2(attr); |
| 803 | int nr = sensor_attr->nr; |
| 804 | int index = sensor_attr->index; |
| 805 | struct w83793_data *data = w83793_update_device(dev); |
| 806 | u32 val; |
| 807 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 808 | if (nr == TEMP_FAN_MAP) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 809 | val = data->temp_fan_map[index]; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 810 | } else if (nr == TEMP_PWM_ENABLE) { |
LABBE Corentin | 84fb029 | 2013-09-27 14:36:04 +0200 | [diff] [blame] | 811 | /* +2 to transform into 2 and 3 to conform with sysfs intf */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 812 | val = ((data->pwm_enable >> index) & 0x01) + 2; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 813 | } else if (nr == TEMP_CRUISE) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 814 | val = TEMP_FROM_REG(data->temp_cruise[index] & 0x7f); |
| 815 | } else { /* TEMP_TOLERANCE */ |
| 816 | val = data->tolerance[index >> 1] >> ((index & 0x01) ? 4 : 0); |
| 817 | val = TEMP_FROM_REG(val & 0x0f); |
| 818 | } |
| 819 | return sprintf(buf, "%d\n", val); |
| 820 | } |
| 821 | |
| 822 | static ssize_t |
| 823 | store_sf_ctrl(struct device *dev, struct device_attribute *attr, |
| 824 | const char *buf, size_t count) |
| 825 | { |
| 826 | struct sensor_device_attribute_2 *sensor_attr = |
| 827 | to_sensor_dev_attr_2(attr); |
| 828 | int nr = sensor_attr->nr; |
| 829 | int index = sensor_attr->index; |
| 830 | struct i2c_client *client = to_i2c_client(dev); |
| 831 | struct w83793_data *data = i2c_get_clientdata(client); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 832 | long val; |
| 833 | int err; |
| 834 | |
| 835 | err = kstrtol(buf, 10, &val); |
| 836 | if (err) |
| 837 | return err; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 838 | |
| 839 | mutex_lock(&data->update_lock); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 840 | if (nr == TEMP_FAN_MAP) { |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 841 | val = clamp_val(val, 0, 255); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 842 | w83793_write_value(client, W83793_REG_TEMP_FAN_MAP(index), val); |
| 843 | data->temp_fan_map[index] = val; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 844 | } else if (nr == TEMP_PWM_ENABLE) { |
| 845 | if (val == 2 || val == 3) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 846 | data->pwm_enable = |
| 847 | w83793_read_value(client, W83793_REG_PWM_ENABLE); |
| 848 | if (val - 2) |
| 849 | data->pwm_enable |= 1 << index; |
| 850 | else |
| 851 | data->pwm_enable &= ~(1 << index); |
| 852 | w83793_write_value(client, W83793_REG_PWM_ENABLE, |
| 853 | data->pwm_enable); |
| 854 | } else { |
| 855 | mutex_unlock(&data->update_lock); |
| 856 | return -EINVAL; |
| 857 | } |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 858 | } else if (nr == TEMP_CRUISE) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 859 | data->temp_cruise[index] = |
| 860 | w83793_read_value(client, W83793_REG_TEMP_CRUISE(index)); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 861 | data->temp_cruise[index] &= 0x80; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 862 | data->temp_cruise[index] |= TEMP_TO_REG(val, 0, 0x7f); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 863 | |
| 864 | w83793_write_value(client, W83793_REG_TEMP_CRUISE(index), |
| 865 | data->temp_cruise[index]); |
| 866 | } else { /* TEMP_TOLERANCE */ |
| 867 | int i = index >> 1; |
| 868 | u8 shift = (index & 0x01) ? 4 : 0; |
| 869 | data->tolerance[i] = |
| 870 | w83793_read_value(client, W83793_REG_TEMP_TOL(i)); |
| 871 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 872 | data->tolerance[i] &= ~(0x0f << shift); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 873 | data->tolerance[i] |= TEMP_TO_REG(val, 0, 0x0f) << shift; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 874 | w83793_write_value(client, W83793_REG_TEMP_TOL(i), |
| 875 | data->tolerance[i]); |
| 876 | } |
| 877 | |
| 878 | mutex_unlock(&data->update_lock); |
| 879 | return count; |
| 880 | } |
| 881 | |
| 882 | static ssize_t |
| 883 | show_sf2_pwm(struct device *dev, struct device_attribute *attr, char *buf) |
| 884 | { |
| 885 | struct sensor_device_attribute_2 *sensor_attr = |
| 886 | to_sensor_dev_attr_2(attr); |
| 887 | int nr = sensor_attr->nr; |
| 888 | int index = sensor_attr->index; |
| 889 | struct w83793_data *data = w83793_update_device(dev); |
| 890 | |
| 891 | return sprintf(buf, "%d\n", (data->sf2_pwm[index][nr] & 0x3f) << 2); |
| 892 | } |
| 893 | |
| 894 | static ssize_t |
| 895 | store_sf2_pwm(struct device *dev, struct device_attribute *attr, |
| 896 | const char *buf, size_t count) |
| 897 | { |
| 898 | struct i2c_client *client = to_i2c_client(dev); |
| 899 | struct w83793_data *data = i2c_get_clientdata(client); |
| 900 | struct sensor_device_attribute_2 *sensor_attr = |
| 901 | to_sensor_dev_attr_2(attr); |
| 902 | int nr = sensor_attr->nr; |
| 903 | int index = sensor_attr->index; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 904 | unsigned long val; |
| 905 | int err; |
| 906 | |
| 907 | err = kstrtoul(buf, 10, &val); |
| 908 | if (err) |
| 909 | return err; |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 910 | val = clamp_val(val, 0, 0xff) >> 2; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 911 | |
| 912 | mutex_lock(&data->update_lock); |
| 913 | data->sf2_pwm[index][nr] = |
| 914 | w83793_read_value(client, W83793_REG_SF2_PWM(index, nr)) & 0xc0; |
| 915 | data->sf2_pwm[index][nr] |= val; |
| 916 | w83793_write_value(client, W83793_REG_SF2_PWM(index, nr), |
| 917 | data->sf2_pwm[index][nr]); |
| 918 | mutex_unlock(&data->update_lock); |
| 919 | return count; |
| 920 | } |
| 921 | |
| 922 | static ssize_t |
| 923 | show_sf2_temp(struct device *dev, struct device_attribute *attr, char *buf) |
| 924 | { |
| 925 | struct sensor_device_attribute_2 *sensor_attr = |
| 926 | to_sensor_dev_attr_2(attr); |
| 927 | int nr = sensor_attr->nr; |
| 928 | int index = sensor_attr->index; |
| 929 | struct w83793_data *data = w83793_update_device(dev); |
| 930 | |
| 931 | return sprintf(buf, "%ld\n", |
| 932 | TEMP_FROM_REG(data->sf2_temp[index][nr] & 0x7f)); |
| 933 | } |
| 934 | |
| 935 | static ssize_t |
| 936 | store_sf2_temp(struct device *dev, struct device_attribute *attr, |
| 937 | const char *buf, size_t count) |
| 938 | { |
| 939 | struct i2c_client *client = to_i2c_client(dev); |
| 940 | struct w83793_data *data = i2c_get_clientdata(client); |
| 941 | struct sensor_device_attribute_2 *sensor_attr = |
| 942 | to_sensor_dev_attr_2(attr); |
| 943 | int nr = sensor_attr->nr; |
| 944 | int index = sensor_attr->index; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 945 | long val; |
| 946 | int err; |
| 947 | |
| 948 | err = kstrtol(buf, 10, &val); |
| 949 | if (err) |
| 950 | return err; |
| 951 | val = TEMP_TO_REG(val, 0, 0x7f); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 952 | |
| 953 | mutex_lock(&data->update_lock); |
| 954 | data->sf2_temp[index][nr] = |
| 955 | w83793_read_value(client, W83793_REG_SF2_TEMP(index, nr)) & 0x80; |
| 956 | data->sf2_temp[index][nr] |= val; |
| 957 | w83793_write_value(client, W83793_REG_SF2_TEMP(index, nr), |
| 958 | data->sf2_temp[index][nr]); |
| 959 | mutex_unlock(&data->update_lock); |
| 960 | return count; |
| 961 | } |
| 962 | |
| 963 | /* only Vcore A/B and Vtt have additional 2 bits precision */ |
| 964 | static ssize_t |
| 965 | show_in(struct device *dev, struct device_attribute *attr, char *buf) |
| 966 | { |
| 967 | struct sensor_device_attribute_2 *sensor_attr = |
| 968 | to_sensor_dev_attr_2(attr); |
| 969 | int nr = sensor_attr->nr; |
| 970 | int index = sensor_attr->index; |
| 971 | struct w83793_data *data = w83793_update_device(dev); |
| 972 | u16 val = data->in[index][nr]; |
| 973 | |
| 974 | if (index < 3) { |
| 975 | val <<= 2; |
| 976 | val += (data->in_low_bits[nr] >> (index * 2)) & 0x3; |
| 977 | } |
Gong Jun | ddca933 | 2007-01-18 22:14:23 +0100 | [diff] [blame] | 978 | /* voltage inputs 5VDD and 5VSB needs 150mV offset */ |
| 979 | val = val * scale_in[index] + scale_in_add[index]; |
| 980 | return sprintf(buf, "%d\n", val); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 981 | } |
| 982 | |
| 983 | static ssize_t |
| 984 | store_in(struct device *dev, struct device_attribute *attr, |
| 985 | const char *buf, size_t count) |
| 986 | { |
| 987 | struct sensor_device_attribute_2 *sensor_attr = |
| 988 | to_sensor_dev_attr_2(attr); |
| 989 | int nr = sensor_attr->nr; |
| 990 | int index = sensor_attr->index; |
| 991 | struct i2c_client *client = to_i2c_client(dev); |
| 992 | struct w83793_data *data = i2c_get_clientdata(client); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 993 | unsigned long val; |
| 994 | int err; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 995 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 996 | err = kstrtoul(buf, 10, &val); |
| 997 | if (err) |
| 998 | return err; |
| 999 | val = (val + scale_in[index] / 2) / scale_in[index]; |
| 1000 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1001 | mutex_lock(&data->update_lock); |
| 1002 | if (index > 2) { |
Gong Jun | ddca933 | 2007-01-18 22:14:23 +0100 | [diff] [blame] | 1003 | /* fix the limit values of 5VDD and 5VSB to ALARM mechanism */ |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1004 | if (nr == 1 || nr == 2) |
Gong Jun | ddca933 | 2007-01-18 22:14:23 +0100 | [diff] [blame] | 1005 | val -= scale_in_add[index] / scale_in[index]; |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 1006 | val = clamp_val(val, 0, 255); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1007 | } else { |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 1008 | val = clamp_val(val, 0, 0x3FF); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1009 | data->in_low_bits[nr] = |
| 1010 | w83793_read_value(client, W83793_REG_IN_LOW_BITS[nr]); |
| 1011 | data->in_low_bits[nr] &= ~(0x03 << (2 * index)); |
| 1012 | data->in_low_bits[nr] |= (val & 0x03) << (2 * index); |
| 1013 | w83793_write_value(client, W83793_REG_IN_LOW_BITS[nr], |
| 1014 | data->in_low_bits[nr]); |
| 1015 | val >>= 2; |
| 1016 | } |
| 1017 | data->in[index][nr] = val; |
| 1018 | w83793_write_value(client, W83793_REG_IN[index][nr], |
| 1019 | data->in[index][nr]); |
| 1020 | mutex_unlock(&data->update_lock); |
| 1021 | return count; |
| 1022 | } |
| 1023 | |
| 1024 | #define NOT_USED -1 |
| 1025 | |
| 1026 | #define SENSOR_ATTR_IN(index) \ |
| 1027 | SENSOR_ATTR_2(in##index##_input, S_IRUGO, show_in, NULL, \ |
| 1028 | IN_READ, index), \ |
| 1029 | SENSOR_ATTR_2(in##index##_max, S_IRUGO | S_IWUSR, show_in, \ |
| 1030 | store_in, IN_MAX, index), \ |
| 1031 | SENSOR_ATTR_2(in##index##_min, S_IRUGO | S_IWUSR, show_in, \ |
| 1032 | store_in, IN_LOW, index), \ |
| 1033 | SENSOR_ATTR_2(in##index##_alarm, S_IRUGO, show_alarm_beep, \ |
| 1034 | NULL, ALARM_STATUS, index + ((index > 2) ? 1 : 0)), \ |
| 1035 | SENSOR_ATTR_2(in##index##_beep, S_IWUSR | S_IRUGO, \ |
| 1036 | show_alarm_beep, store_beep, BEEP_ENABLE, \ |
| 1037 | index + ((index > 2) ? 1 : 0)) |
| 1038 | |
| 1039 | #define SENSOR_ATTR_FAN(index) \ |
| 1040 | SENSOR_ATTR_2(fan##index##_alarm, S_IRUGO, show_alarm_beep, \ |
| 1041 | NULL, ALARM_STATUS, index + 17), \ |
| 1042 | SENSOR_ATTR_2(fan##index##_beep, S_IWUSR | S_IRUGO, \ |
| 1043 | show_alarm_beep, store_beep, BEEP_ENABLE, index + 17), \ |
| 1044 | SENSOR_ATTR_2(fan##index##_input, S_IRUGO, show_fan, \ |
| 1045 | NULL, FAN_INPUT, index - 1), \ |
| 1046 | SENSOR_ATTR_2(fan##index##_min, S_IWUSR | S_IRUGO, \ |
| 1047 | show_fan, store_fan_min, FAN_MIN, index - 1) |
| 1048 | |
| 1049 | #define SENSOR_ATTR_PWM(index) \ |
| 1050 | SENSOR_ATTR_2(pwm##index, S_IWUSR | S_IRUGO, show_pwm, \ |
| 1051 | store_pwm, PWM_DUTY, index - 1), \ |
| 1052 | SENSOR_ATTR_2(pwm##index##_nonstop, S_IWUSR | S_IRUGO, \ |
| 1053 | show_pwm, store_pwm, PWM_NONSTOP, index - 1), \ |
| 1054 | SENSOR_ATTR_2(pwm##index##_start, S_IWUSR | S_IRUGO, \ |
| 1055 | show_pwm, store_pwm, PWM_START, index - 1), \ |
| 1056 | SENSOR_ATTR_2(pwm##index##_stop_time, S_IWUSR | S_IRUGO, \ |
| 1057 | show_pwm, store_pwm, PWM_STOP_TIME, index - 1) |
| 1058 | |
| 1059 | #define SENSOR_ATTR_TEMP(index) \ |
| 1060 | SENSOR_ATTR_2(temp##index##_type, S_IRUGO | S_IWUSR, \ |
| 1061 | show_temp_mode, store_temp_mode, NOT_USED, index - 1), \ |
| 1062 | SENSOR_ATTR_2(temp##index##_input, S_IRUGO, show_temp, \ |
| 1063 | NULL, TEMP_READ, index - 1), \ |
| 1064 | SENSOR_ATTR_2(temp##index##_max, S_IRUGO | S_IWUSR, show_temp, \ |
| 1065 | store_temp, TEMP_CRIT, index - 1), \ |
| 1066 | SENSOR_ATTR_2(temp##index##_max_hyst, S_IRUGO | S_IWUSR, \ |
| 1067 | show_temp, store_temp, TEMP_CRIT_HYST, index - 1), \ |
| 1068 | SENSOR_ATTR_2(temp##index##_warn, S_IRUGO | S_IWUSR, show_temp, \ |
| 1069 | store_temp, TEMP_WARN, index - 1), \ |
| 1070 | SENSOR_ATTR_2(temp##index##_warn_hyst, S_IRUGO | S_IWUSR, \ |
| 1071 | show_temp, store_temp, TEMP_WARN_HYST, index - 1), \ |
| 1072 | SENSOR_ATTR_2(temp##index##_alarm, S_IRUGO, \ |
| 1073 | show_alarm_beep, NULL, ALARM_STATUS, index + 11), \ |
| 1074 | SENSOR_ATTR_2(temp##index##_beep, S_IWUSR | S_IRUGO, \ |
| 1075 | show_alarm_beep, store_beep, BEEP_ENABLE, index + 11), \ |
| 1076 | SENSOR_ATTR_2(temp##index##_auto_channels_pwm, \ |
| 1077 | S_IRUGO | S_IWUSR, show_sf_ctrl, store_sf_ctrl, \ |
| 1078 | TEMP_FAN_MAP, index - 1), \ |
| 1079 | SENSOR_ATTR_2(temp##index##_pwm_enable, S_IWUSR | S_IRUGO, \ |
| 1080 | show_sf_ctrl, store_sf_ctrl, TEMP_PWM_ENABLE, \ |
| 1081 | index - 1), \ |
| 1082 | SENSOR_ATTR_2(thermal_cruise##index, S_IRUGO | S_IWUSR, \ |
| 1083 | show_sf_ctrl, store_sf_ctrl, TEMP_CRUISE, index - 1), \ |
| 1084 | SENSOR_ATTR_2(tolerance##index, S_IRUGO | S_IWUSR, show_sf_ctrl,\ |
| 1085 | store_sf_ctrl, TEMP_TOLERANCE, index - 1), \ |
| 1086 | SENSOR_ATTR_2(temp##index##_auto_point1_pwm, S_IRUGO | S_IWUSR, \ |
| 1087 | show_sf2_pwm, store_sf2_pwm, 0, index - 1), \ |
| 1088 | SENSOR_ATTR_2(temp##index##_auto_point2_pwm, S_IRUGO | S_IWUSR, \ |
| 1089 | show_sf2_pwm, store_sf2_pwm, 1, index - 1), \ |
| 1090 | SENSOR_ATTR_2(temp##index##_auto_point3_pwm, S_IRUGO | S_IWUSR, \ |
| 1091 | show_sf2_pwm, store_sf2_pwm, 2, index - 1), \ |
| 1092 | SENSOR_ATTR_2(temp##index##_auto_point4_pwm, S_IRUGO | S_IWUSR, \ |
| 1093 | show_sf2_pwm, store_sf2_pwm, 3, index - 1), \ |
| 1094 | SENSOR_ATTR_2(temp##index##_auto_point5_pwm, S_IRUGO | S_IWUSR, \ |
| 1095 | show_sf2_pwm, store_sf2_pwm, 4, index - 1), \ |
| 1096 | SENSOR_ATTR_2(temp##index##_auto_point6_pwm, S_IRUGO | S_IWUSR, \ |
| 1097 | show_sf2_pwm, store_sf2_pwm, 5, index - 1), \ |
| 1098 | SENSOR_ATTR_2(temp##index##_auto_point7_pwm, S_IRUGO | S_IWUSR, \ |
| 1099 | show_sf2_pwm, store_sf2_pwm, 6, index - 1), \ |
| 1100 | SENSOR_ATTR_2(temp##index##_auto_point1_temp, S_IRUGO | S_IWUSR,\ |
| 1101 | show_sf2_temp, store_sf2_temp, 0, index - 1), \ |
| 1102 | SENSOR_ATTR_2(temp##index##_auto_point2_temp, S_IRUGO | S_IWUSR,\ |
| 1103 | show_sf2_temp, store_sf2_temp, 1, index - 1), \ |
| 1104 | SENSOR_ATTR_2(temp##index##_auto_point3_temp, S_IRUGO | S_IWUSR,\ |
| 1105 | show_sf2_temp, store_sf2_temp, 2, index - 1), \ |
| 1106 | SENSOR_ATTR_2(temp##index##_auto_point4_temp, S_IRUGO | S_IWUSR,\ |
| 1107 | show_sf2_temp, store_sf2_temp, 3, index - 1), \ |
| 1108 | SENSOR_ATTR_2(temp##index##_auto_point5_temp, S_IRUGO | S_IWUSR,\ |
| 1109 | show_sf2_temp, store_sf2_temp, 4, index - 1), \ |
| 1110 | SENSOR_ATTR_2(temp##index##_auto_point6_temp, S_IRUGO | S_IWUSR,\ |
| 1111 | show_sf2_temp, store_sf2_temp, 5, index - 1), \ |
| 1112 | SENSOR_ATTR_2(temp##index##_auto_point7_temp, S_IRUGO | S_IWUSR,\ |
| 1113 | show_sf2_temp, store_sf2_temp, 6, index - 1) |
| 1114 | |
| 1115 | static struct sensor_device_attribute_2 w83793_sensor_attr_2[] = { |
| 1116 | SENSOR_ATTR_IN(0), |
| 1117 | SENSOR_ATTR_IN(1), |
| 1118 | SENSOR_ATTR_IN(2), |
| 1119 | SENSOR_ATTR_IN(3), |
| 1120 | SENSOR_ATTR_IN(4), |
| 1121 | SENSOR_ATTR_IN(5), |
| 1122 | SENSOR_ATTR_IN(6), |
| 1123 | SENSOR_ATTR_IN(7), |
| 1124 | SENSOR_ATTR_IN(8), |
| 1125 | SENSOR_ATTR_IN(9), |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1126 | SENSOR_ATTR_FAN(1), |
| 1127 | SENSOR_ATTR_FAN(2), |
| 1128 | SENSOR_ATTR_FAN(3), |
| 1129 | SENSOR_ATTR_FAN(4), |
| 1130 | SENSOR_ATTR_FAN(5), |
| 1131 | SENSOR_ATTR_PWM(1), |
| 1132 | SENSOR_ATTR_PWM(2), |
| 1133 | SENSOR_ATTR_PWM(3), |
| 1134 | }; |
| 1135 | |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1136 | static struct sensor_device_attribute_2 w83793_temp[] = { |
| 1137 | SENSOR_ATTR_TEMP(1), |
| 1138 | SENSOR_ATTR_TEMP(2), |
| 1139 | SENSOR_ATTR_TEMP(3), |
| 1140 | SENSOR_ATTR_TEMP(4), |
| 1141 | SENSOR_ATTR_TEMP(5), |
| 1142 | SENSOR_ATTR_TEMP(6), |
| 1143 | }; |
| 1144 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1145 | /* Fan6-Fan12 */ |
| 1146 | static struct sensor_device_attribute_2 w83793_left_fan[] = { |
| 1147 | SENSOR_ATTR_FAN(6), |
| 1148 | SENSOR_ATTR_FAN(7), |
| 1149 | SENSOR_ATTR_FAN(8), |
| 1150 | SENSOR_ATTR_FAN(9), |
| 1151 | SENSOR_ATTR_FAN(10), |
| 1152 | SENSOR_ATTR_FAN(11), |
| 1153 | SENSOR_ATTR_FAN(12), |
| 1154 | }; |
| 1155 | |
| 1156 | /* Pwm4-Pwm8 */ |
| 1157 | static struct sensor_device_attribute_2 w83793_left_pwm[] = { |
| 1158 | SENSOR_ATTR_PWM(4), |
| 1159 | SENSOR_ATTR_PWM(5), |
| 1160 | SENSOR_ATTR_PWM(6), |
| 1161 | SENSOR_ATTR_PWM(7), |
| 1162 | SENSOR_ATTR_PWM(8), |
| 1163 | }; |
| 1164 | |
Gong Jun | c70a8c3 | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1165 | static struct sensor_device_attribute_2 w83793_vid[] = { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1166 | SENSOR_ATTR_2(cpu0_vid, S_IRUGO, show_vid, NULL, NOT_USED, 0), |
| 1167 | SENSOR_ATTR_2(cpu1_vid, S_IRUGO, show_vid, NULL, NOT_USED, 1), |
Gong Jun | c70a8c3 | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1168 | }; |
Jean Delvare | 93c75a4 | 2008-02-12 11:25:07 +0100 | [diff] [blame] | 1169 | static DEVICE_ATTR(vrm, S_IWUSR | S_IRUGO, show_vrm, store_vrm); |
Gong Jun | c70a8c3 | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1170 | |
| 1171 | static struct sensor_device_attribute_2 sda_single_files[] = { |
Jean Delvare | a516dc3 | 2011-01-12 21:55:10 +0100 | [diff] [blame] | 1172 | SENSOR_ATTR_2(intrusion0_alarm, S_IWUSR | S_IRUGO, show_alarm_beep, |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1173 | store_chassis_clear, ALARM_STATUS, 30), |
| 1174 | SENSOR_ATTR_2(beep_enable, S_IWUSR | S_IRUGO, show_beep_enable, |
| 1175 | store_beep_enable, NOT_USED, NOT_USED), |
| 1176 | SENSOR_ATTR_2(pwm_default, S_IWUSR | S_IRUGO, show_sf_setup, |
| 1177 | store_sf_setup, SETUP_PWM_DEFAULT, NOT_USED), |
| 1178 | SENSOR_ATTR_2(pwm_uptime, S_IWUSR | S_IRUGO, show_sf_setup, |
| 1179 | store_sf_setup, SETUP_PWM_UPTIME, NOT_USED), |
| 1180 | SENSOR_ATTR_2(pwm_downtime, S_IWUSR | S_IRUGO, show_sf_setup, |
| 1181 | store_sf_setup, SETUP_PWM_DOWNTIME, NOT_USED), |
| 1182 | SENSOR_ATTR_2(temp_critical, S_IWUSR | S_IRUGO, show_sf_setup, |
| 1183 | store_sf_setup, SETUP_TEMP_CRITICAL, NOT_USED), |
| 1184 | }; |
| 1185 | |
| 1186 | static void w83793_init_client(struct i2c_client *client) |
| 1187 | { |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1188 | if (reset) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1189 | w83793_write_value(client, W83793_REG_CONFIG, 0x80); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1190 | |
| 1191 | /* Start monitoring */ |
| 1192 | w83793_write_value(client, W83793_REG_CONFIG, |
| 1193 | w83793_read_value(client, W83793_REG_CONFIG) | 0x01); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1194 | } |
| 1195 | |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1196 | /* |
| 1197 | * Watchdog routines |
| 1198 | */ |
| 1199 | |
| 1200 | static int watchdog_set_timeout(struct w83793_data *data, int timeout) |
| 1201 | { |
Dan Carpenter | 26336c8 | 2013-10-19 12:12:22 +0300 | [diff] [blame^] | 1202 | unsigned int mtimeout; |
| 1203 | int ret; |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1204 | |
| 1205 | mtimeout = DIV_ROUND_UP(timeout, 60); |
| 1206 | |
| 1207 | if (mtimeout > 255) |
| 1208 | return -EINVAL; |
| 1209 | |
| 1210 | mutex_lock(&data->watchdog_lock); |
| 1211 | if (!data->client) { |
| 1212 | ret = -ENODEV; |
| 1213 | goto leave; |
| 1214 | } |
| 1215 | |
| 1216 | data->watchdog_timeout = mtimeout; |
| 1217 | |
| 1218 | /* Set Timeout value (in Minutes) */ |
| 1219 | w83793_write_value(data->client, W83793_REG_WDT_TIMEOUT, |
| 1220 | data->watchdog_timeout); |
| 1221 | |
| 1222 | ret = mtimeout * 60; |
| 1223 | |
| 1224 | leave: |
| 1225 | mutex_unlock(&data->watchdog_lock); |
| 1226 | return ret; |
| 1227 | } |
| 1228 | |
| 1229 | static int watchdog_get_timeout(struct w83793_data *data) |
| 1230 | { |
| 1231 | int timeout; |
| 1232 | |
| 1233 | mutex_lock(&data->watchdog_lock); |
| 1234 | timeout = data->watchdog_timeout * 60; |
| 1235 | mutex_unlock(&data->watchdog_lock); |
| 1236 | |
| 1237 | return timeout; |
| 1238 | } |
| 1239 | |
| 1240 | static int watchdog_trigger(struct w83793_data *data) |
| 1241 | { |
| 1242 | int ret = 0; |
| 1243 | |
| 1244 | mutex_lock(&data->watchdog_lock); |
| 1245 | if (!data->client) { |
| 1246 | ret = -ENODEV; |
| 1247 | goto leave; |
| 1248 | } |
| 1249 | |
| 1250 | /* Set Timeout value (in Minutes) */ |
| 1251 | w83793_write_value(data->client, W83793_REG_WDT_TIMEOUT, |
| 1252 | data->watchdog_timeout); |
| 1253 | |
| 1254 | leave: |
| 1255 | mutex_unlock(&data->watchdog_lock); |
| 1256 | return ret; |
| 1257 | } |
| 1258 | |
| 1259 | static int watchdog_enable(struct w83793_data *data) |
| 1260 | { |
| 1261 | int ret = 0; |
| 1262 | |
| 1263 | mutex_lock(&data->watchdog_lock); |
| 1264 | if (!data->client) { |
| 1265 | ret = -ENODEV; |
| 1266 | goto leave; |
| 1267 | } |
| 1268 | |
| 1269 | /* Set initial timeout */ |
| 1270 | w83793_write_value(data->client, W83793_REG_WDT_TIMEOUT, |
| 1271 | data->watchdog_timeout); |
| 1272 | |
| 1273 | /* Enable Soft Watchdog */ |
| 1274 | w83793_write_value(data->client, W83793_REG_WDT_LOCK, 0x55); |
| 1275 | |
| 1276 | leave: |
| 1277 | mutex_unlock(&data->watchdog_lock); |
| 1278 | return ret; |
| 1279 | } |
| 1280 | |
| 1281 | static int watchdog_disable(struct w83793_data *data) |
| 1282 | { |
| 1283 | int ret = 0; |
| 1284 | |
| 1285 | mutex_lock(&data->watchdog_lock); |
| 1286 | if (!data->client) { |
| 1287 | ret = -ENODEV; |
| 1288 | goto leave; |
| 1289 | } |
| 1290 | |
| 1291 | /* Disable Soft Watchdog */ |
| 1292 | w83793_write_value(data->client, W83793_REG_WDT_LOCK, 0xAA); |
| 1293 | |
| 1294 | leave: |
| 1295 | mutex_unlock(&data->watchdog_lock); |
| 1296 | return ret; |
| 1297 | } |
| 1298 | |
| 1299 | static int watchdog_open(struct inode *inode, struct file *filp) |
| 1300 | { |
| 1301 | struct w83793_data *pos, *data = NULL; |
| 1302 | int watchdog_is_open; |
| 1303 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1304 | /* |
| 1305 | * We get called from drivers/char/misc.c with misc_mtx hold, and we |
| 1306 | * call misc_register() from w83793_probe() with watchdog_data_mutex |
| 1307 | * hold, as misc_register() takes the misc_mtx lock, this is a possible |
| 1308 | * deadlock, so we use mutex_trylock here. |
| 1309 | */ |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1310 | if (!mutex_trylock(&watchdog_data_mutex)) |
| 1311 | return -ERESTARTSYS; |
| 1312 | list_for_each_entry(pos, &watchdog_data_list, list) { |
| 1313 | if (pos->watchdog_miscdev.minor == iminor(inode)) { |
| 1314 | data = pos; |
| 1315 | break; |
| 1316 | } |
| 1317 | } |
| 1318 | |
| 1319 | /* Check, if device is already open */ |
| 1320 | watchdog_is_open = test_and_set_bit(0, &data->watchdog_is_open); |
| 1321 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1322 | /* |
| 1323 | * Increase data reference counter (if not already done). |
| 1324 | * Note we can never not have found data, so we don't check for this |
| 1325 | */ |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1326 | if (!watchdog_is_open) |
| 1327 | kref_get(&data->kref); |
| 1328 | |
| 1329 | mutex_unlock(&watchdog_data_mutex); |
| 1330 | |
| 1331 | /* Check, if device is already open and possibly issue error */ |
| 1332 | if (watchdog_is_open) |
| 1333 | return -EBUSY; |
| 1334 | |
| 1335 | /* Enable Soft Watchdog */ |
| 1336 | watchdog_enable(data); |
| 1337 | |
| 1338 | /* Store pointer to data into filp's private data */ |
| 1339 | filp->private_data = data; |
| 1340 | |
| 1341 | return nonseekable_open(inode, filp); |
| 1342 | } |
| 1343 | |
| 1344 | static int watchdog_close(struct inode *inode, struct file *filp) |
| 1345 | { |
| 1346 | struct w83793_data *data = filp->private_data; |
| 1347 | |
| 1348 | if (data->watchdog_expect_close) { |
| 1349 | watchdog_disable(data); |
| 1350 | data->watchdog_expect_close = 0; |
| 1351 | } else { |
| 1352 | watchdog_trigger(data); |
| 1353 | dev_crit(&data->client->dev, |
| 1354 | "unexpected close, not stopping watchdog!\n"); |
| 1355 | } |
| 1356 | |
| 1357 | clear_bit(0, &data->watchdog_is_open); |
| 1358 | |
| 1359 | /* Decrease data reference counter */ |
| 1360 | mutex_lock(&watchdog_data_mutex); |
| 1361 | kref_put(&data->kref, w83793_release_resources); |
| 1362 | mutex_unlock(&watchdog_data_mutex); |
| 1363 | |
| 1364 | return 0; |
| 1365 | } |
| 1366 | |
| 1367 | static ssize_t watchdog_write(struct file *filp, const char __user *buf, |
| 1368 | size_t count, loff_t *offset) |
| 1369 | { |
Dan Carpenter | 3f7cd7e | 2010-03-29 22:03:03 +0200 | [diff] [blame] | 1370 | ssize_t ret; |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1371 | struct w83793_data *data = filp->private_data; |
| 1372 | |
| 1373 | if (count) { |
| 1374 | if (!nowayout) { |
| 1375 | size_t i; |
| 1376 | |
| 1377 | /* Clear it in case it was set with a previous write */ |
| 1378 | data->watchdog_expect_close = 0; |
| 1379 | |
| 1380 | for (i = 0; i != count; i++) { |
| 1381 | char c; |
| 1382 | if (get_user(c, buf + i)) |
| 1383 | return -EFAULT; |
| 1384 | if (c == 'V') |
| 1385 | data->watchdog_expect_close = 1; |
| 1386 | } |
| 1387 | } |
| 1388 | ret = watchdog_trigger(data); |
| 1389 | if (ret < 0) |
| 1390 | return ret; |
| 1391 | } |
| 1392 | return count; |
| 1393 | } |
| 1394 | |
Arnd Bergmann | 5592933 | 2010-04-27 00:24:05 +0200 | [diff] [blame] | 1395 | static long watchdog_ioctl(struct file *filp, unsigned int cmd, |
| 1396 | unsigned long arg) |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1397 | { |
Jean Delvare | 36c7fe1 | 2011-01-12 21:55:11 +0100 | [diff] [blame] | 1398 | struct watchdog_info ident = { |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1399 | .options = WDIOF_KEEPALIVEPING | |
| 1400 | WDIOF_SETTIMEOUT | |
| 1401 | WDIOF_CARDRESET, |
| 1402 | .identity = "w83793 watchdog" |
| 1403 | }; |
| 1404 | |
| 1405 | int val, ret = 0; |
| 1406 | struct w83793_data *data = filp->private_data; |
| 1407 | |
| 1408 | switch (cmd) { |
| 1409 | case WDIOC_GETSUPPORT: |
| 1410 | if (!nowayout) |
| 1411 | ident.options |= WDIOF_MAGICCLOSE; |
| 1412 | if (copy_to_user((void __user *)arg, &ident, sizeof(ident))) |
| 1413 | ret = -EFAULT; |
| 1414 | break; |
| 1415 | |
| 1416 | case WDIOC_GETSTATUS: |
| 1417 | val = data->watchdog_caused_reboot ? WDIOF_CARDRESET : 0; |
| 1418 | ret = put_user(val, (int __user *)arg); |
| 1419 | break; |
| 1420 | |
| 1421 | case WDIOC_GETBOOTSTATUS: |
| 1422 | ret = put_user(0, (int __user *)arg); |
| 1423 | break; |
| 1424 | |
| 1425 | case WDIOC_KEEPALIVE: |
| 1426 | ret = watchdog_trigger(data); |
| 1427 | break; |
| 1428 | |
| 1429 | case WDIOC_GETTIMEOUT: |
| 1430 | val = watchdog_get_timeout(data); |
| 1431 | ret = put_user(val, (int __user *)arg); |
| 1432 | break; |
| 1433 | |
| 1434 | case WDIOC_SETTIMEOUT: |
| 1435 | if (get_user(val, (int __user *)arg)) { |
| 1436 | ret = -EFAULT; |
| 1437 | break; |
| 1438 | } |
| 1439 | ret = watchdog_set_timeout(data, val); |
| 1440 | if (ret > 0) |
| 1441 | ret = put_user(ret, (int __user *)arg); |
| 1442 | break; |
| 1443 | |
| 1444 | case WDIOC_SETOPTIONS: |
| 1445 | if (get_user(val, (int __user *)arg)) { |
| 1446 | ret = -EFAULT; |
| 1447 | break; |
| 1448 | } |
| 1449 | |
| 1450 | if (val & WDIOS_DISABLECARD) |
| 1451 | ret = watchdog_disable(data); |
| 1452 | else if (val & WDIOS_ENABLECARD) |
| 1453 | ret = watchdog_enable(data); |
| 1454 | else |
| 1455 | ret = -EINVAL; |
| 1456 | |
| 1457 | break; |
| 1458 | default: |
| 1459 | ret = -ENOTTY; |
| 1460 | } |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1461 | return ret; |
| 1462 | } |
| 1463 | |
| 1464 | static const struct file_operations watchdog_fops = { |
| 1465 | .owner = THIS_MODULE, |
| 1466 | .llseek = no_llseek, |
| 1467 | .open = watchdog_open, |
| 1468 | .release = watchdog_close, |
| 1469 | .write = watchdog_write, |
Arnd Bergmann | 5592933 | 2010-04-27 00:24:05 +0200 | [diff] [blame] | 1470 | .unlocked_ioctl = watchdog_ioctl, |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1471 | }; |
| 1472 | |
| 1473 | /* |
| 1474 | * Notifier for system down |
| 1475 | */ |
| 1476 | |
| 1477 | static int watchdog_notify_sys(struct notifier_block *this, unsigned long code, |
| 1478 | void *unused) |
| 1479 | { |
| 1480 | struct w83793_data *data = NULL; |
| 1481 | |
| 1482 | if (code == SYS_DOWN || code == SYS_HALT) { |
| 1483 | |
| 1484 | /* Disable each registered watchdog */ |
| 1485 | mutex_lock(&watchdog_data_mutex); |
| 1486 | list_for_each_entry(data, &watchdog_data_list, list) { |
| 1487 | if (data->watchdog_miscdev.minor) |
| 1488 | watchdog_disable(data); |
| 1489 | } |
| 1490 | mutex_unlock(&watchdog_data_mutex); |
| 1491 | } |
| 1492 | |
| 1493 | return NOTIFY_DONE; |
| 1494 | } |
| 1495 | |
| 1496 | /* |
| 1497 | * The WDT needs to learn about soft shutdowns in order to |
| 1498 | * turn the timebomb registers off. |
| 1499 | */ |
| 1500 | |
| 1501 | static struct notifier_block watchdog_notifier = { |
| 1502 | .notifier_call = watchdog_notify_sys, |
| 1503 | }; |
| 1504 | |
| 1505 | /* |
| 1506 | * Init / remove routines |
| 1507 | */ |
| 1508 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1509 | static int w83793_remove(struct i2c_client *client) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1510 | { |
| 1511 | struct w83793_data *data = i2c_get_clientdata(client); |
| 1512 | struct device *dev = &client->dev; |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1513 | int i, tmp; |
| 1514 | |
| 1515 | /* Unregister the watchdog (if registered) */ |
| 1516 | if (data->watchdog_miscdev.minor) { |
| 1517 | misc_deregister(&data->watchdog_miscdev); |
| 1518 | |
| 1519 | if (data->watchdog_is_open) { |
| 1520 | dev_warn(&client->dev, |
| 1521 | "i2c client detached with watchdog open! " |
| 1522 | "Stopping watchdog.\n"); |
| 1523 | watchdog_disable(data); |
| 1524 | } |
| 1525 | |
| 1526 | mutex_lock(&watchdog_data_mutex); |
| 1527 | list_del(&data->list); |
| 1528 | mutex_unlock(&watchdog_data_mutex); |
| 1529 | |
| 1530 | /* Tell the watchdog code the client is gone */ |
| 1531 | mutex_lock(&data->watchdog_lock); |
| 1532 | data->client = NULL; |
| 1533 | mutex_unlock(&data->watchdog_lock); |
| 1534 | } |
| 1535 | |
| 1536 | /* Reset Configuration Register to Disable Watch Dog Registers */ |
| 1537 | tmp = w83793_read_value(client, W83793_REG_CONFIG); |
| 1538 | w83793_write_value(client, W83793_REG_CONFIG, tmp & ~0x04); |
| 1539 | |
| 1540 | unregister_reboot_notifier(&watchdog_notifier); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1541 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1542 | hwmon_device_unregister(data->hwmon_dev); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1543 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1544 | for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) |
| 1545 | device_remove_file(dev, |
| 1546 | &w83793_sensor_attr_2[i].dev_attr); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1547 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1548 | for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) |
| 1549 | device_remove_file(dev, &sda_single_files[i].dev_attr); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1550 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1551 | for (i = 0; i < ARRAY_SIZE(w83793_vid); i++) |
| 1552 | device_remove_file(dev, &w83793_vid[i].dev_attr); |
| 1553 | device_remove_file(dev, &dev_attr_vrm); |
Gong Jun | c70a8c3 | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1554 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1555 | for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++) |
| 1556 | device_remove_file(dev, &w83793_left_fan[i].dev_attr); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1557 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1558 | for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++) |
| 1559 | device_remove_file(dev, &w83793_left_pwm[i].dev_attr); |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1560 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1561 | for (i = 0; i < ARRAY_SIZE(w83793_temp); i++) |
| 1562 | device_remove_file(dev, &w83793_temp[i].dev_attr); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1563 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1564 | if (data->lm75[0] != NULL) |
| 1565 | i2c_unregister_device(data->lm75[0]); |
| 1566 | if (data->lm75[1] != NULL) |
| 1567 | i2c_unregister_device(data->lm75[1]); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1568 | |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1569 | /* Decrease data reference counter */ |
| 1570 | mutex_lock(&watchdog_data_mutex); |
| 1571 | kref_put(&data->kref, w83793_release_resources); |
| 1572 | mutex_unlock(&watchdog_data_mutex); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1573 | |
| 1574 | return 0; |
| 1575 | } |
| 1576 | |
| 1577 | static int |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1578 | w83793_detect_subclients(struct i2c_client *client) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1579 | { |
| 1580 | int i, id, err; |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1581 | int address = client->addr; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1582 | u8 tmp; |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1583 | struct i2c_adapter *adapter = client->adapter; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1584 | struct w83793_data *data = i2c_get_clientdata(client); |
| 1585 | |
| 1586 | id = i2c_adapter_id(adapter); |
| 1587 | if (force_subclients[0] == id && force_subclients[1] == address) { |
| 1588 | for (i = 2; i <= 3; i++) { |
| 1589 | if (force_subclients[i] < 0x48 |
| 1590 | || force_subclients[i] > 0x4f) { |
| 1591 | dev_err(&client->dev, |
| 1592 | "invalid subclient " |
| 1593 | "address %d; must be 0x48-0x4f\n", |
| 1594 | force_subclients[i]); |
| 1595 | err = -EINVAL; |
| 1596 | goto ERROR_SC_0; |
| 1597 | } |
| 1598 | } |
| 1599 | w83793_write_value(client, W83793_REG_I2C_SUBADDR, |
| 1600 | (force_subclients[2] & 0x07) | |
| 1601 | ((force_subclients[3] & 0x07) << 4)); |
| 1602 | } |
| 1603 | |
| 1604 | tmp = w83793_read_value(client, W83793_REG_I2C_SUBADDR); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1605 | if (!(tmp & 0x08)) |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1606 | data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (tmp & 0x7)); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1607 | if (!(tmp & 0x80)) { |
| 1608 | if ((data->lm75[0] != NULL) |
| 1609 | && ((tmp & 0x7) == ((tmp >> 4) & 0x7))) { |
| 1610 | dev_err(&client->dev, |
| 1611 | "duplicate addresses 0x%x, " |
| 1612 | "use force_subclients\n", data->lm75[0]->addr); |
| 1613 | err = -ENODEV; |
| 1614 | goto ERROR_SC_1; |
| 1615 | } |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1616 | data->lm75[1] = i2c_new_dummy(adapter, |
| 1617 | 0x48 + ((tmp >> 4) & 0x7)); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1618 | } |
| 1619 | |
| 1620 | return 0; |
| 1621 | |
| 1622 | /* Undo inits in case of errors */ |
| 1623 | |
| 1624 | ERROR_SC_1: |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1625 | if (data->lm75[0] != NULL) |
| 1626 | i2c_unregister_device(data->lm75[0]); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1627 | ERROR_SC_0: |
| 1628 | return err; |
| 1629 | } |
| 1630 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1631 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
Jean Delvare | 310ec79 | 2009-12-14 21:17:23 +0100 | [diff] [blame] | 1632 | static int w83793_detect(struct i2c_client *client, |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1633 | struct i2c_board_info *info) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1634 | { |
Jean Delvare | 52df644 | 2009-12-09 20:35:57 +0100 | [diff] [blame] | 1635 | u8 tmp, bank, chip_id; |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1636 | struct i2c_adapter *adapter = client->adapter; |
| 1637 | unsigned short address = client->addr; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1638 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1639 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1640 | return -ENODEV; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1641 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1642 | bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1643 | |
Jean Delvare | 52df644 | 2009-12-09 20:35:57 +0100 | [diff] [blame] | 1644 | tmp = bank & 0x80 ? 0x5c : 0xa3; |
| 1645 | /* Check Winbond vendor ID */ |
| 1646 | if (tmp != i2c_smbus_read_byte_data(client, W83793_REG_VENDORID)) { |
| 1647 | pr_debug("w83793: Detection failed at check vendor id\n"); |
| 1648 | return -ENODEV; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1649 | } |
| 1650 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1651 | /* |
| 1652 | * If Winbond chip, address of chip and W83793_REG_I2C_ADDR |
| 1653 | * should match |
| 1654 | */ |
Jean Delvare | 52df644 | 2009-12-09 20:35:57 +0100 | [diff] [blame] | 1655 | if ((bank & 0x07) == 0 |
| 1656 | && i2c_smbus_read_byte_data(client, W83793_REG_I2C_ADDR) != |
| 1657 | (address << 1)) { |
| 1658 | pr_debug("w83793: Detection failed at check i2c addr\n"); |
| 1659 | return -ENODEV; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1660 | } |
| 1661 | |
Jean Delvare | 52df644 | 2009-12-09 20:35:57 +0100 | [diff] [blame] | 1662 | /* Determine the chip type now */ |
| 1663 | chip_id = i2c_smbus_read_byte_data(client, W83793_REG_CHIPID); |
| 1664 | if (chip_id != 0x7b) |
| 1665 | return -ENODEV; |
| 1666 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1667 | strlcpy(info->type, "w83793", I2C_NAME_SIZE); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1668 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1669 | return 0; |
| 1670 | } |
| 1671 | |
| 1672 | static int w83793_probe(struct i2c_client *client, |
| 1673 | const struct i2c_device_id *id) |
| 1674 | { |
| 1675 | struct device *dev = &client->dev; |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1676 | const int watchdog_minors[] = { WATCHDOG_MINOR, 212, 213, 214, 215 }; |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1677 | struct w83793_data *data; |
| 1678 | int i, tmp, val, err; |
| 1679 | int files_fan = ARRAY_SIZE(w83793_left_fan) / 7; |
| 1680 | int files_pwm = ARRAY_SIZE(w83793_left_pwm) / 5; |
| 1681 | int files_temp = ARRAY_SIZE(w83793_temp) / 6; |
| 1682 | |
| 1683 | data = kzalloc(sizeof(struct w83793_data), GFP_KERNEL); |
| 1684 | if (!data) { |
| 1685 | err = -ENOMEM; |
| 1686 | goto exit; |
| 1687 | } |
| 1688 | |
| 1689 | i2c_set_clientdata(client, data); |
| 1690 | data->bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1691 | mutex_init(&data->update_lock); |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1692 | mutex_init(&data->watchdog_lock); |
| 1693 | INIT_LIST_HEAD(&data->list); |
| 1694 | kref_init(&data->kref); |
| 1695 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1696 | /* |
| 1697 | * Store client pointer in our data struct for watchdog usage |
| 1698 | * (where the client is found through a data ptr instead of the |
| 1699 | * otherway around) |
| 1700 | */ |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1701 | data->client = client; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1702 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1703 | err = w83793_detect_subclients(client); |
| 1704 | if (err) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1705 | goto free_mem; |
| 1706 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1707 | /* Initialize the chip */ |
| 1708 | w83793_init_client(client); |
| 1709 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1710 | /* |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1711 | * Only fan 1-5 has their own input pins, |
| 1712 | * Pwm 1-3 has their own pins |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1713 | */ |
| 1714 | data->has_fan = 0x1f; |
| 1715 | data->has_pwm = 0x07; |
| 1716 | tmp = w83793_read_value(client, W83793_REG_MFC); |
| 1717 | val = w83793_read_value(client, W83793_REG_FANIN_CTRL); |
| 1718 | |
| 1719 | /* check the function of pins 49-56 */ |
Jean Delvare | 93c75a4 | 2008-02-12 11:25:07 +0100 | [diff] [blame] | 1720 | if (tmp & 0x80) { |
| 1721 | data->has_vid |= 0x2; /* has VIDB */ |
| 1722 | } else { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1723 | data->has_pwm |= 0x18; /* pwm 4,5 */ |
| 1724 | if (val & 0x01) { /* fan 6 */ |
| 1725 | data->has_fan |= 0x20; |
| 1726 | data->has_pwm |= 0x20; |
| 1727 | } |
| 1728 | if (val & 0x02) { /* fan 7 */ |
| 1729 | data->has_fan |= 0x40; |
| 1730 | data->has_pwm |= 0x40; |
| 1731 | } |
| 1732 | if (!(tmp & 0x40) && (val & 0x04)) { /* fan 8 */ |
| 1733 | data->has_fan |= 0x80; |
| 1734 | data->has_pwm |= 0x80; |
| 1735 | } |
| 1736 | } |
| 1737 | |
Jean Delvare | 93c75a4 | 2008-02-12 11:25:07 +0100 | [diff] [blame] | 1738 | /* check the function of pins 37-40 */ |
| 1739 | if (!(tmp & 0x29)) |
| 1740 | data->has_vid |= 0x1; /* has VIDA */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1741 | if (0x08 == (tmp & 0x0c)) { |
| 1742 | if (val & 0x08) /* fan 9 */ |
| 1743 | data->has_fan |= 0x100; |
| 1744 | if (val & 0x10) /* fan 10 */ |
| 1745 | data->has_fan |= 0x200; |
| 1746 | } |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1747 | if (0x20 == (tmp & 0x30)) { |
| 1748 | if (val & 0x20) /* fan 11 */ |
| 1749 | data->has_fan |= 0x400; |
| 1750 | if (val & 0x40) /* fan 12 */ |
| 1751 | data->has_fan |= 0x800; |
| 1752 | } |
| 1753 | |
| 1754 | if ((tmp & 0x01) && (val & 0x04)) { /* fan 8, second location */ |
| 1755 | data->has_fan |= 0x80; |
| 1756 | data->has_pwm |= 0x80; |
| 1757 | } |
| 1758 | |
Rudolf Marek | c929431 | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1759 | tmp = w83793_read_value(client, W83793_REG_FANIN_SEL); |
| 1760 | if ((tmp & 0x01) && (val & 0x08)) { /* fan 9, second location */ |
| 1761 | data->has_fan |= 0x100; |
| 1762 | } |
| 1763 | if ((tmp & 0x02) && (val & 0x10)) { /* fan 10, second location */ |
| 1764 | data->has_fan |= 0x200; |
| 1765 | } |
| 1766 | if ((tmp & 0x04) && (val & 0x20)) { /* fan 11, second location */ |
| 1767 | data->has_fan |= 0x400; |
| 1768 | } |
| 1769 | if ((tmp & 0x08) && (val & 0x40)) { /* fan 12, second location */ |
| 1770 | data->has_fan |= 0x800; |
| 1771 | } |
| 1772 | |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1773 | /* check the temp1-6 mode, ignore former AMDSI selected inputs */ |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1774 | tmp = w83793_read_value(client, W83793_REG_TEMP_MODE[0]); |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1775 | if (tmp & 0x01) |
| 1776 | data->has_temp |= 0x01; |
| 1777 | if (tmp & 0x04) |
| 1778 | data->has_temp |= 0x02; |
| 1779 | if (tmp & 0x10) |
| 1780 | data->has_temp |= 0x04; |
| 1781 | if (tmp & 0x40) |
| 1782 | data->has_temp |= 0x08; |
| 1783 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1784 | tmp = w83793_read_value(client, W83793_REG_TEMP_MODE[1]); |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1785 | if (tmp & 0x01) |
| 1786 | data->has_temp |= 0x10; |
| 1787 | if (tmp & 0x02) |
| 1788 | data->has_temp |= 0x20; |
| 1789 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1790 | /* Register sysfs hooks */ |
| 1791 | for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) { |
| 1792 | err = device_create_file(dev, |
| 1793 | &w83793_sensor_attr_2[i].dev_attr); |
| 1794 | if (err) |
| 1795 | goto exit_remove; |
| 1796 | } |
| 1797 | |
Gong Jun | c70a8c3 | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1798 | for (i = 0; i < ARRAY_SIZE(w83793_vid); i++) { |
| 1799 | if (!(data->has_vid & (1 << i))) |
| 1800 | continue; |
| 1801 | err = device_create_file(dev, &w83793_vid[i].dev_attr); |
| 1802 | if (err) |
| 1803 | goto exit_remove; |
| 1804 | } |
Jean Delvare | 93c75a4 | 2008-02-12 11:25:07 +0100 | [diff] [blame] | 1805 | if (data->has_vid) { |
| 1806 | data->vrm = vid_which_vrm(); |
| 1807 | err = device_create_file(dev, &dev_attr_vrm); |
| 1808 | if (err) |
| 1809 | goto exit_remove; |
| 1810 | } |
Gong Jun | c70a8c3 | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1811 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1812 | for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) { |
| 1813 | err = device_create_file(dev, &sda_single_files[i].dev_attr); |
| 1814 | if (err) |
| 1815 | goto exit_remove; |
| 1816 | |
| 1817 | } |
| 1818 | |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1819 | for (i = 0; i < 6; i++) { |
| 1820 | int j; |
| 1821 | if (!(data->has_temp & (1 << i))) |
| 1822 | continue; |
| 1823 | for (j = 0; j < files_temp; j++) { |
| 1824 | err = device_create_file(dev, |
| 1825 | &w83793_temp[(i) * files_temp |
| 1826 | + j].dev_attr); |
| 1827 | if (err) |
| 1828 | goto exit_remove; |
| 1829 | } |
| 1830 | } |
| 1831 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1832 | for (i = 5; i < 12; i++) { |
| 1833 | int j; |
| 1834 | if (!(data->has_fan & (1 << i))) |
| 1835 | continue; |
| 1836 | for (j = 0; j < files_fan; j++) { |
| 1837 | err = device_create_file(dev, |
| 1838 | &w83793_left_fan[(i - 5) * files_fan |
| 1839 | + j].dev_attr); |
| 1840 | if (err) |
| 1841 | goto exit_remove; |
| 1842 | } |
| 1843 | } |
| 1844 | |
| 1845 | for (i = 3; i < 8; i++) { |
| 1846 | int j; |
| 1847 | if (!(data->has_pwm & (1 << i))) |
| 1848 | continue; |
| 1849 | for (j = 0; j < files_pwm; j++) { |
| 1850 | err = device_create_file(dev, |
| 1851 | &w83793_left_pwm[(i - 3) * files_pwm |
| 1852 | + j].dev_attr); |
| 1853 | if (err) |
| 1854 | goto exit_remove; |
| 1855 | } |
| 1856 | } |
| 1857 | |
Tony Jones | 1beeffe | 2007-08-20 13:46:20 -0700 | [diff] [blame] | 1858 | data->hwmon_dev = hwmon_device_register(dev); |
| 1859 | if (IS_ERR(data->hwmon_dev)) { |
| 1860 | err = PTR_ERR(data->hwmon_dev); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1861 | goto exit_remove; |
| 1862 | } |
| 1863 | |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1864 | /* Watchdog initialization */ |
| 1865 | |
| 1866 | /* Register boot notifier */ |
| 1867 | err = register_reboot_notifier(&watchdog_notifier); |
| 1868 | if (err != 0) { |
| 1869 | dev_err(&client->dev, |
| 1870 | "cannot register reboot notifier (err=%d)\n", err); |
| 1871 | goto exit_devunreg; |
| 1872 | } |
| 1873 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1874 | /* |
| 1875 | * Enable Watchdog registers. |
| 1876 | * Set Configuration Register to Enable Watch Dog Registers |
| 1877 | * (Bit 2) = XXXX, X1XX. |
| 1878 | */ |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1879 | tmp = w83793_read_value(client, W83793_REG_CONFIG); |
| 1880 | w83793_write_value(client, W83793_REG_CONFIG, tmp | 0x04); |
| 1881 | |
| 1882 | /* Set the default watchdog timeout */ |
| 1883 | data->watchdog_timeout = timeout; |
| 1884 | |
| 1885 | /* Check, if last reboot was caused by watchdog */ |
| 1886 | data->watchdog_caused_reboot = |
| 1887 | w83793_read_value(data->client, W83793_REG_WDT_STATUS) & 0x01; |
| 1888 | |
| 1889 | /* Disable Soft Watchdog during initialiation */ |
| 1890 | watchdog_disable(data); |
| 1891 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1892 | /* |
| 1893 | * We take the data_mutex lock early so that watchdog_open() cannot |
| 1894 | * run when misc_register() has completed, but we've not yet added |
| 1895 | * our data to the watchdog_data_list (and set the default timeout) |
| 1896 | */ |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1897 | mutex_lock(&watchdog_data_mutex); |
| 1898 | for (i = 0; i < ARRAY_SIZE(watchdog_minors); i++) { |
| 1899 | /* Register our watchdog part */ |
| 1900 | snprintf(data->watchdog_name, sizeof(data->watchdog_name), |
| 1901 | "watchdog%c", (i == 0) ? '\0' : ('0' + i)); |
| 1902 | data->watchdog_miscdev.name = data->watchdog_name; |
| 1903 | data->watchdog_miscdev.fops = &watchdog_fops; |
| 1904 | data->watchdog_miscdev.minor = watchdog_minors[i]; |
| 1905 | |
| 1906 | err = misc_register(&data->watchdog_miscdev); |
| 1907 | if (err == -EBUSY) |
| 1908 | continue; |
| 1909 | if (err) { |
| 1910 | data->watchdog_miscdev.minor = 0; |
| 1911 | dev_err(&client->dev, |
| 1912 | "Registering watchdog chardev: %d\n", err); |
| 1913 | break; |
| 1914 | } |
| 1915 | |
| 1916 | list_add(&data->list, &watchdog_data_list); |
| 1917 | |
| 1918 | dev_info(&client->dev, |
| 1919 | "Registered watchdog chardev major 10, minor: %d\n", |
| 1920 | watchdog_minors[i]); |
| 1921 | break; |
| 1922 | } |
| 1923 | if (i == ARRAY_SIZE(watchdog_minors)) { |
| 1924 | data->watchdog_miscdev.minor = 0; |
Guenter Roeck | b55f375 | 2013-01-10 10:01:24 -0800 | [diff] [blame] | 1925 | dev_warn(&client->dev, |
| 1926 | "Couldn't register watchdog chardev (due to no free minor)\n"); |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1927 | } |
| 1928 | |
| 1929 | mutex_unlock(&watchdog_data_mutex); |
| 1930 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1931 | return 0; |
| 1932 | |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1933 | /* Unregister hwmon device */ |
| 1934 | |
| 1935 | exit_devunreg: |
| 1936 | |
| 1937 | hwmon_device_unregister(data->hwmon_dev); |
| 1938 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1939 | /* Unregister sysfs hooks */ |
| 1940 | |
| 1941 | exit_remove: |
| 1942 | for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) |
| 1943 | device_remove_file(dev, &w83793_sensor_attr_2[i].dev_attr); |
| 1944 | |
| 1945 | for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) |
| 1946 | device_remove_file(dev, &sda_single_files[i].dev_attr); |
| 1947 | |
Gong Jun | c70a8c3 | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1948 | for (i = 0; i < ARRAY_SIZE(w83793_vid); i++) |
| 1949 | device_remove_file(dev, &w83793_vid[i].dev_attr); |
| 1950 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1951 | for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++) |
| 1952 | device_remove_file(dev, &w83793_left_fan[i].dev_attr); |
| 1953 | |
| 1954 | for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++) |
| 1955 | device_remove_file(dev, &w83793_left_pwm[i].dev_attr); |
| 1956 | |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1957 | for (i = 0; i < ARRAY_SIZE(w83793_temp); i++) |
| 1958 | device_remove_file(dev, &w83793_temp[i].dev_attr); |
| 1959 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1960 | if (data->lm75[0] != NULL) |
| 1961 | i2c_unregister_device(data->lm75[0]); |
| 1962 | if (data->lm75[1] != NULL) |
| 1963 | i2c_unregister_device(data->lm75[1]); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1964 | free_mem: |
| 1965 | kfree(data); |
| 1966 | exit: |
| 1967 | return err; |
| 1968 | } |
| 1969 | |
| 1970 | static void w83793_update_nonvolatile(struct device *dev) |
| 1971 | { |
| 1972 | struct i2c_client *client = to_i2c_client(dev); |
| 1973 | struct w83793_data *data = i2c_get_clientdata(client); |
| 1974 | int i, j; |
| 1975 | /* |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1976 | * They are somewhat "stable" registers, and to update them every time |
| 1977 | * takes so much time, it's just not worthy. Update them in a long |
| 1978 | * interval to avoid exception. |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1979 | */ |
| 1980 | if (!(time_after(jiffies, data->last_nonvolatile + HZ * 300) |
| 1981 | || !data->valid)) |
| 1982 | return; |
| 1983 | /* update voltage limits */ |
| 1984 | for (i = 1; i < 3; i++) { |
| 1985 | for (j = 0; j < ARRAY_SIZE(data->in); j++) { |
| 1986 | data->in[j][i] = |
| 1987 | w83793_read_value(client, W83793_REG_IN[j][i]); |
| 1988 | } |
| 1989 | data->in_low_bits[i] = |
| 1990 | w83793_read_value(client, W83793_REG_IN_LOW_BITS[i]); |
| 1991 | } |
| 1992 | |
| 1993 | for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) { |
| 1994 | /* Update the Fan measured value and limits */ |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1995 | if (!(data->has_fan & (1 << i))) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1996 | continue; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1997 | data->fan_min[i] = |
| 1998 | w83793_read_value(client, W83793_REG_FAN_MIN(i)) << 8; |
| 1999 | data->fan_min[i] |= |
| 2000 | w83793_read_value(client, W83793_REG_FAN_MIN(i) + 1); |
| 2001 | } |
| 2002 | |
| 2003 | for (i = 0; i < ARRAY_SIZE(data->temp_fan_map); i++) { |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 2004 | if (!(data->has_temp & (1 << i))) |
| 2005 | continue; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2006 | data->temp_fan_map[i] = |
| 2007 | w83793_read_value(client, W83793_REG_TEMP_FAN_MAP(i)); |
| 2008 | for (j = 1; j < 5; j++) { |
| 2009 | data->temp[i][j] = |
| 2010 | w83793_read_value(client, W83793_REG_TEMP[i][j]); |
| 2011 | } |
| 2012 | data->temp_cruise[i] = |
| 2013 | w83793_read_value(client, W83793_REG_TEMP_CRUISE(i)); |
| 2014 | for (j = 0; j < 7; j++) { |
| 2015 | data->sf2_pwm[i][j] = |
| 2016 | w83793_read_value(client, W83793_REG_SF2_PWM(i, j)); |
| 2017 | data->sf2_temp[i][j] = |
| 2018 | w83793_read_value(client, |
| 2019 | W83793_REG_SF2_TEMP(i, j)); |
| 2020 | } |
| 2021 | } |
| 2022 | |
| 2023 | for (i = 0; i < ARRAY_SIZE(data->temp_mode); i++) |
| 2024 | data->temp_mode[i] = |
| 2025 | w83793_read_value(client, W83793_REG_TEMP_MODE[i]); |
| 2026 | |
| 2027 | for (i = 0; i < ARRAY_SIZE(data->tolerance); i++) { |
| 2028 | data->tolerance[i] = |
| 2029 | w83793_read_value(client, W83793_REG_TEMP_TOL(i)); |
| 2030 | } |
| 2031 | |
| 2032 | for (i = 0; i < ARRAY_SIZE(data->pwm); i++) { |
| 2033 | if (!(data->has_pwm & (1 << i))) |
| 2034 | continue; |
| 2035 | data->pwm[i][PWM_NONSTOP] = |
| 2036 | w83793_read_value(client, W83793_REG_PWM(i, PWM_NONSTOP)); |
| 2037 | data->pwm[i][PWM_START] = |
| 2038 | w83793_read_value(client, W83793_REG_PWM(i, PWM_START)); |
| 2039 | data->pwm_stop_time[i] = |
| 2040 | w83793_read_value(client, W83793_REG_PWM_STOP_TIME(i)); |
| 2041 | } |
| 2042 | |
| 2043 | data->pwm_default = w83793_read_value(client, W83793_REG_PWM_DEFAULT); |
| 2044 | data->pwm_enable = w83793_read_value(client, W83793_REG_PWM_ENABLE); |
| 2045 | data->pwm_uptime = w83793_read_value(client, W83793_REG_PWM_UPTIME); |
| 2046 | data->pwm_downtime = w83793_read_value(client, W83793_REG_PWM_DOWNTIME); |
| 2047 | data->temp_critical = |
| 2048 | w83793_read_value(client, W83793_REG_TEMP_CRITICAL); |
| 2049 | data->beep_enable = w83793_read_value(client, W83793_REG_OVT_BEEP); |
| 2050 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 2051 | for (i = 0; i < ARRAY_SIZE(data->beeps); i++) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2052 | data->beeps[i] = w83793_read_value(client, W83793_REG_BEEP(i)); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2053 | |
| 2054 | data->last_nonvolatile = jiffies; |
| 2055 | } |
| 2056 | |
| 2057 | static struct w83793_data *w83793_update_device(struct device *dev) |
| 2058 | { |
| 2059 | struct i2c_client *client = to_i2c_client(dev); |
| 2060 | struct w83793_data *data = i2c_get_clientdata(client); |
| 2061 | int i; |
| 2062 | |
| 2063 | mutex_lock(&data->update_lock); |
| 2064 | |
| 2065 | if (!(time_after(jiffies, data->last_updated + HZ * 2) |
| 2066 | || !data->valid)) |
| 2067 | goto END; |
| 2068 | |
| 2069 | /* Update the voltages measured value and limits */ |
| 2070 | for (i = 0; i < ARRAY_SIZE(data->in); i++) |
| 2071 | data->in[i][IN_READ] = |
| 2072 | w83793_read_value(client, W83793_REG_IN[i][IN_READ]); |
| 2073 | |
| 2074 | data->in_low_bits[IN_READ] = |
| 2075 | w83793_read_value(client, W83793_REG_IN_LOW_BITS[IN_READ]); |
| 2076 | |
| 2077 | for (i = 0; i < ARRAY_SIZE(data->fan); i++) { |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 2078 | if (!(data->has_fan & (1 << i))) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2079 | continue; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2080 | data->fan[i] = |
| 2081 | w83793_read_value(client, W83793_REG_FAN(i)) << 8; |
| 2082 | data->fan[i] |= |
| 2083 | w83793_read_value(client, W83793_REG_FAN(i) + 1); |
| 2084 | } |
| 2085 | |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 2086 | for (i = 0; i < ARRAY_SIZE(data->temp); i++) { |
| 2087 | if (!(data->has_temp & (1 << i))) |
| 2088 | continue; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2089 | data->temp[i][TEMP_READ] = |
| 2090 | w83793_read_value(client, W83793_REG_TEMP[i][TEMP_READ]); |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 2091 | } |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2092 | |
| 2093 | data->temp_low_bits = |
| 2094 | w83793_read_value(client, W83793_REG_TEMP_LOW_BITS); |
| 2095 | |
| 2096 | for (i = 0; i < ARRAY_SIZE(data->pwm); i++) { |
| 2097 | if (data->has_pwm & (1 << i)) |
| 2098 | data->pwm[i][PWM_DUTY] = |
| 2099 | w83793_read_value(client, |
| 2100 | W83793_REG_PWM(i, PWM_DUTY)); |
| 2101 | } |
| 2102 | |
| 2103 | for (i = 0; i < ARRAY_SIZE(data->alarms); i++) |
| 2104 | data->alarms[i] = |
| 2105 | w83793_read_value(client, W83793_REG_ALARM(i)); |
Gong Jun | c70a8c3 | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 2106 | if (data->has_vid & 0x01) |
| 2107 | data->vid[0] = w83793_read_value(client, W83793_REG_VID_INA); |
| 2108 | if (data->has_vid & 0x02) |
| 2109 | data->vid[1] = w83793_read_value(client, W83793_REG_VID_INB); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2110 | w83793_update_nonvolatile(dev); |
| 2111 | data->last_updated = jiffies; |
| 2112 | data->valid = 1; |
| 2113 | |
| 2114 | END: |
| 2115 | mutex_unlock(&data->update_lock); |
| 2116 | return data; |
| 2117 | } |
| 2118 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 2119 | /* |
| 2120 | * Ignore the possibility that somebody change bank outside the driver |
| 2121 | * Must be called with data->update_lock held, except during initialization |
| 2122 | */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2123 | static u8 w83793_read_value(struct i2c_client *client, u16 reg) |
| 2124 | { |
| 2125 | struct w83793_data *data = i2c_get_clientdata(client); |
| 2126 | u8 res = 0xff; |
| 2127 | u8 new_bank = reg >> 8; |
| 2128 | |
| 2129 | new_bank |= data->bank & 0xfc; |
| 2130 | if (data->bank != new_bank) { |
| 2131 | if (i2c_smbus_write_byte_data |
| 2132 | (client, W83793_REG_BANKSEL, new_bank) >= 0) |
| 2133 | data->bank = new_bank; |
| 2134 | else { |
| 2135 | dev_err(&client->dev, |
| 2136 | "set bank to %d failed, fall back " |
| 2137 | "to bank %d, read reg 0x%x error\n", |
| 2138 | new_bank, data->bank, reg); |
| 2139 | res = 0x0; /* read 0x0 from the chip */ |
| 2140 | goto END; |
| 2141 | } |
| 2142 | } |
| 2143 | res = i2c_smbus_read_byte_data(client, reg & 0xff); |
| 2144 | END: |
| 2145 | return res; |
| 2146 | } |
| 2147 | |
| 2148 | /* Must be called with data->update_lock held, except during initialization */ |
| 2149 | static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value) |
| 2150 | { |
| 2151 | struct w83793_data *data = i2c_get_clientdata(client); |
| 2152 | int res; |
| 2153 | u8 new_bank = reg >> 8; |
| 2154 | |
| 2155 | new_bank |= data->bank & 0xfc; |
| 2156 | if (data->bank != new_bank) { |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 2157 | res = i2c_smbus_write_byte_data(client, W83793_REG_BANKSEL, |
| 2158 | new_bank); |
| 2159 | if (res < 0) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2160 | dev_err(&client->dev, |
| 2161 | "set bank to %d failed, fall back " |
| 2162 | "to bank %d, write reg 0x%x error\n", |
| 2163 | new_bank, data->bank, reg); |
| 2164 | goto END; |
| 2165 | } |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 2166 | data->bank = new_bank; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2167 | } |
| 2168 | |
| 2169 | res = i2c_smbus_write_byte_data(client, reg & 0xff, value); |
| 2170 | END: |
| 2171 | return res; |
| 2172 | } |
| 2173 | |
Axel Lin | f0967ee | 2012-01-20 15:38:18 +0800 | [diff] [blame] | 2174 | module_i2c_driver(w83793_driver); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2175 | |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 2176 | MODULE_AUTHOR("Yuan Mu, Sven Anders"); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2177 | MODULE_DESCRIPTION("w83793 driver"); |
| 2178 | MODULE_LICENSE("GPL"); |