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> |
| 49 | |
| 50 | /* Default values */ |
| 51 | #define WATCHDOG_TIMEOUT 2 /* 2 minute default timeout */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 52 | |
| 53 | /* Addresses to scan */ |
Mark M. Hoffman | 25e9c86 | 2008-02-17 22:28:03 -0500 | [diff] [blame] | 54 | static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, |
| 55 | I2C_CLIENT_END }; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 56 | |
| 57 | /* Insmod parameters */ |
Jean Delvare | 3aed198 | 2009-01-07 16:37:32 +0100 | [diff] [blame] | 58 | |
| 59 | static unsigned short force_subclients[4]; |
| 60 | module_param_array(force_subclients, short, NULL, 0); |
| 61 | MODULE_PARM_DESC(force_subclients, "List of subclient addresses: " |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 62 | "{bus, clientaddr, subclientaddr1, subclientaddr2}"); |
| 63 | |
Rusty Russell | 90ab5ee | 2012-01-13 09:32:20 +1030 | [diff] [blame] | 64 | static bool reset; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 65 | module_param(reset, bool, 0); |
| 66 | MODULE_PARM_DESC(reset, "Set to 1 to reset chip, not recommended"); |
| 67 | |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 68 | static int timeout = WATCHDOG_TIMEOUT; /* default timeout in minutes */ |
| 69 | module_param(timeout, int, 0); |
| 70 | MODULE_PARM_DESC(timeout, |
| 71 | "Watchdog timeout in minutes. 2<= timeout <=255 (default=" |
| 72 | __MODULE_STRING(WATCHDOG_TIMEOUT) ")"); |
| 73 | |
| 74 | static int nowayout = WATCHDOG_NOWAYOUT; |
| 75 | module_param(nowayout, int, 0); |
| 76 | MODULE_PARM_DESC(nowayout, |
| 77 | "Watchdog cannot be stopped once started (default=" |
| 78 | __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); |
| 79 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 80 | /* |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 81 | * Address 0x00, 0x0d, 0x0e, 0x0f in all three banks are reserved |
| 82 | * as ID, Bank Select registers |
| 83 | */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 84 | #define W83793_REG_BANKSEL 0x00 |
| 85 | #define W83793_REG_VENDORID 0x0d |
| 86 | #define W83793_REG_CHIPID 0x0e |
| 87 | #define W83793_REG_DEVICEID 0x0f |
| 88 | |
| 89 | #define W83793_REG_CONFIG 0x40 |
| 90 | #define W83793_REG_MFC 0x58 |
| 91 | #define W83793_REG_FANIN_CTRL 0x5c |
| 92 | #define W83793_REG_FANIN_SEL 0x5d |
| 93 | #define W83793_REG_I2C_ADDR 0x0b |
| 94 | #define W83793_REG_I2C_SUBADDR 0x0c |
| 95 | #define W83793_REG_VID_INA 0x05 |
| 96 | #define W83793_REG_VID_INB 0x06 |
| 97 | #define W83793_REG_VID_LATCHA 0x07 |
| 98 | #define W83793_REG_VID_LATCHB 0x08 |
| 99 | #define W83793_REG_VID_CTRL 0x59 |
| 100 | |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 101 | #define W83793_REG_WDT_LOCK 0x01 |
| 102 | #define W83793_REG_WDT_ENABLE 0x02 |
| 103 | #define W83793_REG_WDT_STATUS 0x03 |
| 104 | #define W83793_REG_WDT_TIMEOUT 0x04 |
| 105 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 106 | static u16 W83793_REG_TEMP_MODE[2] = { 0x5e, 0x5f }; |
| 107 | |
| 108 | #define TEMP_READ 0 |
| 109 | #define TEMP_CRIT 1 |
| 110 | #define TEMP_CRIT_HYST 2 |
| 111 | #define TEMP_WARN 3 |
| 112 | #define TEMP_WARN_HYST 4 |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 113 | /* |
| 114 | * only crit and crit_hyst affect real-time alarm status |
| 115 | * current crit crit_hyst warn warn_hyst |
| 116 | */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 117 | static u16 W83793_REG_TEMP[][5] = { |
| 118 | {0x1c, 0x78, 0x79, 0x7a, 0x7b}, |
| 119 | {0x1d, 0x7c, 0x7d, 0x7e, 0x7f}, |
| 120 | {0x1e, 0x80, 0x81, 0x82, 0x83}, |
| 121 | {0x1f, 0x84, 0x85, 0x86, 0x87}, |
| 122 | {0x20, 0x88, 0x89, 0x8a, 0x8b}, |
| 123 | {0x21, 0x8c, 0x8d, 0x8e, 0x8f}, |
| 124 | }; |
| 125 | |
| 126 | #define W83793_REG_TEMP_LOW_BITS 0x22 |
| 127 | |
| 128 | #define W83793_REG_BEEP(index) (0x53 + (index)) |
| 129 | #define W83793_REG_ALARM(index) (0x4b + (index)) |
| 130 | |
| 131 | #define W83793_REG_CLR_CHASSIS 0x4a /* SMI MASK4 */ |
| 132 | #define W83793_REG_IRQ_CTRL 0x50 |
| 133 | #define W83793_REG_OVT_CTRL 0x51 |
| 134 | #define W83793_REG_OVT_BEEP 0x52 |
| 135 | |
| 136 | #define IN_READ 0 |
| 137 | #define IN_MAX 1 |
| 138 | #define IN_LOW 2 |
| 139 | static const u16 W83793_REG_IN[][3] = { |
| 140 | /* Current, High, Low */ |
| 141 | {0x10, 0x60, 0x61}, /* Vcore A */ |
| 142 | {0x11, 0x62, 0x63}, /* Vcore B */ |
| 143 | {0x12, 0x64, 0x65}, /* Vtt */ |
| 144 | {0x14, 0x6a, 0x6b}, /* VSEN1 */ |
| 145 | {0x15, 0x6c, 0x6d}, /* VSEN2 */ |
| 146 | {0x16, 0x6e, 0x6f}, /* +3VSEN */ |
| 147 | {0x17, 0x70, 0x71}, /* +12VSEN */ |
| 148 | {0x18, 0x72, 0x73}, /* 5VDD */ |
| 149 | {0x19, 0x74, 0x75}, /* 5VSB */ |
| 150 | {0x1a, 0x76, 0x77}, /* VBAT */ |
| 151 | }; |
| 152 | |
| 153 | /* Low Bits of Vcore A/B Vtt Read/High/Low */ |
| 154 | static const u16 W83793_REG_IN_LOW_BITS[] = { 0x1b, 0x68, 0x69 }; |
| 155 | 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] | 156 | 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] | 157 | |
| 158 | #define W83793_REG_FAN(index) (0x23 + 2 * (index)) /* High byte */ |
| 159 | #define W83793_REG_FAN_MIN(index) (0x90 + 2 * (index)) /* High byte */ |
| 160 | |
| 161 | #define W83793_REG_PWM_DEFAULT 0xb2 |
| 162 | #define W83793_REG_PWM_ENABLE 0x207 |
| 163 | #define W83793_REG_PWM_UPTIME 0xc3 /* Unit in 0.1 second */ |
| 164 | #define W83793_REG_PWM_DOWNTIME 0xc4 /* Unit in 0.1 second */ |
| 165 | #define W83793_REG_TEMP_CRITICAL 0xc5 |
| 166 | |
| 167 | #define PWM_DUTY 0 |
| 168 | #define PWM_START 1 |
| 169 | #define PWM_NONSTOP 2 |
Nicolas Kaiser | 5aebefb | 2007-11-07 13:28:59 +0100 | [diff] [blame] | 170 | #define PWM_STOP_TIME 3 |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 171 | #define W83793_REG_PWM(index, nr) (((nr) == 0 ? 0xb3 : \ |
| 172 | (nr) == 1 ? 0x220 : 0x218) + (index)) |
| 173 | |
| 174 | /* bit field, fan1 is bit0, fan2 is bit1 ... */ |
| 175 | #define W83793_REG_TEMP_FAN_MAP(index) (0x201 + (index)) |
| 176 | #define W83793_REG_TEMP_TOL(index) (0x208 + (index)) |
| 177 | #define W83793_REG_TEMP_CRUISE(index) (0x210 + (index)) |
| 178 | #define W83793_REG_PWM_STOP_TIME(index) (0x228 + (index)) |
| 179 | #define W83793_REG_SF2_TEMP(index, nr) (0x230 + ((index) << 4) + (nr)) |
| 180 | #define W83793_REG_SF2_PWM(index, nr) (0x238 + ((index) << 4) + (nr)) |
| 181 | |
| 182 | static inline unsigned long FAN_FROM_REG(u16 val) |
| 183 | { |
| 184 | if ((val >= 0xfff) || (val == 0)) |
| 185 | return 0; |
Frans Meulenbroeks | 7fe83ad | 2012-01-05 19:50:18 +0100 | [diff] [blame] | 186 | return 1350000UL / val; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 187 | } |
| 188 | |
| 189 | static inline u16 FAN_TO_REG(long rpm) |
| 190 | { |
| 191 | if (rpm <= 0) |
| 192 | return 0x0fff; |
| 193 | return SENSORS_LIMIT((1350000 + (rpm >> 1)) / rpm, 1, 0xffe); |
| 194 | } |
| 195 | |
| 196 | static inline unsigned long TIME_FROM_REG(u8 reg) |
| 197 | { |
Frans Meulenbroeks | 7fe83ad | 2012-01-05 19:50:18 +0100 | [diff] [blame] | 198 | return reg * 100; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 199 | } |
| 200 | |
| 201 | static inline u8 TIME_TO_REG(unsigned long val) |
| 202 | { |
| 203 | return SENSORS_LIMIT((val + 50) / 100, 0, 0xff); |
| 204 | } |
| 205 | |
| 206 | static inline long TEMP_FROM_REG(s8 reg) |
| 207 | { |
Frans Meulenbroeks | 7fe83ad | 2012-01-05 19:50:18 +0100 | [diff] [blame] | 208 | return reg * 1000; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 209 | } |
| 210 | |
| 211 | static inline s8 TEMP_TO_REG(long val, s8 min, s8 max) |
| 212 | { |
| 213 | return SENSORS_LIMIT((val + (val < 0 ? -500 : 500)) / 1000, min, max); |
| 214 | } |
| 215 | |
| 216 | struct w83793_data { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 217 | struct i2c_client *lm75[2]; |
Tony Jones | 1beeffe | 2007-08-20 13:46:20 -0700 | [diff] [blame] | 218 | struct device *hwmon_dev; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 219 | struct mutex update_lock; |
| 220 | char valid; /* !=0 if following fields are valid */ |
| 221 | unsigned long last_updated; /* In jiffies */ |
| 222 | unsigned long last_nonvolatile; /* In jiffies, last time we update the |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 223 | * nonvolatile registers |
| 224 | */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 225 | |
| 226 | u8 bank; |
| 227 | u8 vrm; |
| 228 | u8 vid[2]; |
| 229 | u8 in[10][3]; /* Register value, read/high/low */ |
| 230 | u8 in_low_bits[3]; /* Additional resolution for VCore A/B Vtt */ |
| 231 | |
| 232 | u16 has_fan; /* Only fan1- fan5 has own pins */ |
| 233 | u16 fan[12]; /* Register value combine */ |
| 234 | u16 fan_min[12]; /* Register value combine */ |
| 235 | |
| 236 | s8 temp[6][5]; /* current, crit, crit_hyst,warn, warn_hyst */ |
| 237 | u8 temp_low_bits; /* Additional resolution TD1-TD4 */ |
| 238 | 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] | 239 | * byte 1: Temp R1,R2 mode, each has 1 bit |
| 240 | */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 241 | u8 temp_critical; /* If reached all fan will be at full speed */ |
| 242 | u8 temp_fan_map[6]; /* Temp controls which pwm fan, bit field */ |
| 243 | |
| 244 | u8 has_pwm; |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 245 | u8 has_temp; |
Gong Jun | c70a8c3 | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 246 | u8 has_vid; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 247 | u8 pwm_enable; /* Register value, each Temp has 1 bit */ |
| 248 | u8 pwm_uptime; /* Register value */ |
| 249 | u8 pwm_downtime; /* Register value */ |
| 250 | u8 pwm_default; /* All fan default pwm, next poweron valid */ |
| 251 | u8 pwm[8][3]; /* Register value */ |
| 252 | u8 pwm_stop_time[8]; |
| 253 | u8 temp_cruise[6]; |
| 254 | |
| 255 | u8 alarms[5]; /* realtime status registers */ |
| 256 | u8 beeps[5]; |
| 257 | u8 beep_enable; |
| 258 | u8 tolerance[3]; /* Temp tolerance(Smart Fan I/II) */ |
| 259 | u8 sf2_pwm[6][7]; /* Smart FanII: Fan duty cycle */ |
| 260 | u8 sf2_temp[6][7]; /* Smart FanII: Temp level point */ |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 261 | |
| 262 | /* watchdog */ |
| 263 | struct i2c_client *client; |
| 264 | struct mutex watchdog_lock; |
| 265 | struct list_head list; /* member of the watchdog_data_list */ |
| 266 | struct kref kref; |
| 267 | struct miscdevice watchdog_miscdev; |
| 268 | unsigned long watchdog_is_open; |
| 269 | char watchdog_expect_close; |
| 270 | char watchdog_name[10]; /* must be unique to avoid sysfs conflict */ |
| 271 | unsigned int watchdog_caused_reboot; |
| 272 | int watchdog_timeout; /* watchdog timeout in minutes */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 273 | }; |
| 274 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 275 | /* |
| 276 | * Somewhat ugly :( global data pointer list with all devices, so that |
| 277 | * we can find our device data as when using misc_register. There is no |
| 278 | * other method to get to one's device data from the open file-op and |
| 279 | * for usage in the reboot notifier callback. |
| 280 | */ |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 281 | static LIST_HEAD(watchdog_data_list); |
| 282 | |
| 283 | /* Note this lock not only protect list access, but also data.kref access */ |
| 284 | static DEFINE_MUTEX(watchdog_data_mutex); |
| 285 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 286 | /* |
| 287 | * Release our data struct when we're detached from the i2c client *and* all |
| 288 | * references to our watchdog device are released |
| 289 | */ |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 290 | static void w83793_release_resources(struct kref *ref) |
| 291 | { |
| 292 | struct w83793_data *data = container_of(ref, struct w83793_data, kref); |
| 293 | kfree(data); |
| 294 | } |
| 295 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 296 | static u8 w83793_read_value(struct i2c_client *client, u16 reg); |
| 297 | 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] | 298 | static int w83793_probe(struct i2c_client *client, |
| 299 | const struct i2c_device_id *id); |
Jean Delvare | 310ec79 | 2009-12-14 21:17:23 +0100 | [diff] [blame] | 300 | static int w83793_detect(struct i2c_client *client, |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 301 | struct i2c_board_info *info); |
| 302 | static int w83793_remove(struct i2c_client *client); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 303 | static void w83793_init_client(struct i2c_client *client); |
| 304 | static void w83793_update_nonvolatile(struct device *dev); |
| 305 | static struct w83793_data *w83793_update_device(struct device *dev); |
| 306 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 307 | static const struct i2c_device_id w83793_id[] = { |
Jean Delvare | 1f86df4 | 2009-12-14 21:17:26 +0100 | [diff] [blame] | 308 | { "w83793", 0 }, |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 309 | { } |
| 310 | }; |
| 311 | MODULE_DEVICE_TABLE(i2c, w83793_id); |
| 312 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 313 | static struct i2c_driver w83793_driver = { |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 314 | .class = I2C_CLASS_HWMON, |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 315 | .driver = { |
| 316 | .name = "w83793", |
| 317 | }, |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 318 | .probe = w83793_probe, |
| 319 | .remove = w83793_remove, |
| 320 | .id_table = w83793_id, |
| 321 | .detect = w83793_detect, |
Jean Delvare | c3813d6 | 2009-12-14 21:17:25 +0100 | [diff] [blame] | 322 | .address_list = normal_i2c, |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 323 | }; |
| 324 | |
| 325 | static ssize_t |
| 326 | show_vrm(struct device *dev, struct device_attribute *attr, char *buf) |
| 327 | { |
Jean Delvare | 8f74efe | 2007-12-01 11:25:33 +0100 | [diff] [blame] | 328 | struct w83793_data *data = dev_get_drvdata(dev); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 329 | return sprintf(buf, "%d\n", data->vrm); |
| 330 | } |
| 331 | |
| 332 | static ssize_t |
| 333 | show_vid(struct device *dev, struct device_attribute *attr, char *buf) |
| 334 | { |
| 335 | struct w83793_data *data = w83793_update_device(dev); |
| 336 | struct sensor_device_attribute_2 *sensor_attr = |
| 337 | to_sensor_dev_attr_2(attr); |
| 338 | int index = sensor_attr->index; |
| 339 | |
| 340 | return sprintf(buf, "%d\n", vid_from_reg(data->vid[index], data->vrm)); |
| 341 | } |
| 342 | |
| 343 | static ssize_t |
| 344 | store_vrm(struct device *dev, struct device_attribute *attr, |
| 345 | const char *buf, size_t count) |
| 346 | { |
Jean Delvare | 8f74efe | 2007-12-01 11:25:33 +0100 | [diff] [blame] | 347 | struct w83793_data *data = dev_get_drvdata(dev); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 348 | unsigned long val; |
| 349 | int err; |
| 350 | |
| 351 | err = kstrtoul(buf, 10, &val); |
| 352 | if (err) |
| 353 | return err; |
| 354 | |
| 355 | data->vrm = val; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 356 | return count; |
| 357 | } |
| 358 | |
| 359 | #define ALARM_STATUS 0 |
| 360 | #define BEEP_ENABLE 1 |
| 361 | static ssize_t |
| 362 | show_alarm_beep(struct device *dev, struct device_attribute *attr, char *buf) |
| 363 | { |
| 364 | struct w83793_data *data = w83793_update_device(dev); |
| 365 | struct sensor_device_attribute_2 *sensor_attr = |
| 366 | to_sensor_dev_attr_2(attr); |
| 367 | int nr = sensor_attr->nr; |
| 368 | int index = sensor_attr->index >> 3; |
| 369 | int bit = sensor_attr->index & 0x07; |
| 370 | u8 val; |
| 371 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 372 | if (nr == ALARM_STATUS) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 373 | val = (data->alarms[index] >> (bit)) & 1; |
| 374 | } else { /* BEEP_ENABLE */ |
| 375 | val = (data->beeps[index] >> (bit)) & 1; |
| 376 | } |
| 377 | |
| 378 | return sprintf(buf, "%u\n", val); |
| 379 | } |
| 380 | |
| 381 | static ssize_t |
| 382 | store_beep(struct device *dev, struct device_attribute *attr, |
| 383 | const char *buf, size_t count) |
| 384 | { |
| 385 | struct i2c_client *client = to_i2c_client(dev); |
| 386 | struct w83793_data *data = i2c_get_clientdata(client); |
| 387 | struct sensor_device_attribute_2 *sensor_attr = |
| 388 | to_sensor_dev_attr_2(attr); |
| 389 | int index = sensor_attr->index >> 3; |
| 390 | int shift = sensor_attr->index & 0x07; |
| 391 | u8 beep_bit = 1 << shift; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 392 | unsigned long val; |
| 393 | int err; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 394 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 395 | err = kstrtoul(buf, 10, &val); |
| 396 | if (err) |
| 397 | return err; |
| 398 | |
| 399 | if (val > 1) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 400 | return -EINVAL; |
| 401 | |
| 402 | mutex_lock(&data->update_lock); |
| 403 | data->beeps[index] = w83793_read_value(client, W83793_REG_BEEP(index)); |
| 404 | data->beeps[index] &= ~beep_bit; |
| 405 | data->beeps[index] |= val << shift; |
| 406 | w83793_write_value(client, W83793_REG_BEEP(index), data->beeps[index]); |
| 407 | mutex_unlock(&data->update_lock); |
| 408 | |
| 409 | return count; |
| 410 | } |
| 411 | |
| 412 | static ssize_t |
| 413 | show_beep_enable(struct device *dev, struct device_attribute *attr, char *buf) |
| 414 | { |
| 415 | struct w83793_data *data = w83793_update_device(dev); |
| 416 | return sprintf(buf, "%u\n", (data->beep_enable >> 1) & 0x01); |
| 417 | } |
| 418 | |
| 419 | static ssize_t |
| 420 | store_beep_enable(struct device *dev, struct device_attribute *attr, |
| 421 | const char *buf, size_t count) |
| 422 | { |
| 423 | struct i2c_client *client = to_i2c_client(dev); |
| 424 | struct w83793_data *data = i2c_get_clientdata(client); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 425 | unsigned long val; |
| 426 | int err; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 427 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 428 | err = kstrtoul(buf, 10, &val); |
| 429 | if (err) |
| 430 | return err; |
| 431 | |
| 432 | if (val > 1) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 433 | return -EINVAL; |
| 434 | |
| 435 | mutex_lock(&data->update_lock); |
| 436 | data->beep_enable = w83793_read_value(client, W83793_REG_OVT_BEEP) |
| 437 | & 0xfd; |
| 438 | data->beep_enable |= val << 1; |
| 439 | w83793_write_value(client, W83793_REG_OVT_BEEP, data->beep_enable); |
| 440 | mutex_unlock(&data->update_lock); |
| 441 | |
| 442 | return count; |
| 443 | } |
| 444 | |
| 445 | /* Write any value to clear chassis alarm */ |
| 446 | static ssize_t |
Jean Delvare | a516dc3 | 2011-01-12 21:55:10 +0100 | [diff] [blame] | 447 | store_chassis_clear_legacy(struct device *dev, |
| 448 | struct device_attribute *attr, const char *buf, |
| 449 | size_t count) |
| 450 | { |
| 451 | struct i2c_client *client = to_i2c_client(dev); |
| 452 | struct w83793_data *data = i2c_get_clientdata(client); |
| 453 | u8 val; |
| 454 | |
| 455 | dev_warn(dev, "Attribute chassis is deprecated, " |
| 456 | "use intrusion0_alarm instead\n"); |
| 457 | |
| 458 | mutex_lock(&data->update_lock); |
| 459 | val = w83793_read_value(client, W83793_REG_CLR_CHASSIS); |
| 460 | val |= 0x80; |
| 461 | w83793_write_value(client, W83793_REG_CLR_CHASSIS, val); |
| 462 | mutex_unlock(&data->update_lock); |
| 463 | return count; |
| 464 | } |
| 465 | |
| 466 | /* Write 0 to clear chassis alarm */ |
| 467 | static ssize_t |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 468 | store_chassis_clear(struct device *dev, |
| 469 | struct device_attribute *attr, const char *buf, |
| 470 | size_t count) |
| 471 | { |
| 472 | struct i2c_client *client = to_i2c_client(dev); |
| 473 | struct w83793_data *data = i2c_get_clientdata(client); |
Jean Delvare | a516dc3 | 2011-01-12 21:55:10 +0100 | [diff] [blame] | 474 | unsigned long val; |
| 475 | u8 reg; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 476 | int err; |
Jean Delvare | a516dc3 | 2011-01-12 21:55:10 +0100 | [diff] [blame] | 477 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 478 | err = kstrtoul(buf, 10, &val); |
| 479 | if (err) |
| 480 | return err; |
| 481 | if (val) |
Jean Delvare | a516dc3 | 2011-01-12 21:55:10 +0100 | [diff] [blame] | 482 | return -EINVAL; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 483 | |
| 484 | mutex_lock(&data->update_lock); |
Jean Delvare | a516dc3 | 2011-01-12 21:55:10 +0100 | [diff] [blame] | 485 | reg = w83793_read_value(client, W83793_REG_CLR_CHASSIS); |
| 486 | w83793_write_value(client, W83793_REG_CLR_CHASSIS, reg | 0x80); |
| 487 | data->valid = 0; /* Force cache refresh */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 488 | mutex_unlock(&data->update_lock); |
| 489 | return count; |
| 490 | } |
| 491 | |
| 492 | #define FAN_INPUT 0 |
| 493 | #define FAN_MIN 1 |
| 494 | static ssize_t |
| 495 | show_fan(struct device *dev, struct device_attribute *attr, char *buf) |
| 496 | { |
| 497 | struct sensor_device_attribute_2 *sensor_attr = |
| 498 | to_sensor_dev_attr_2(attr); |
| 499 | int nr = sensor_attr->nr; |
| 500 | int index = sensor_attr->index; |
| 501 | struct w83793_data *data = w83793_update_device(dev); |
| 502 | u16 val; |
| 503 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 504 | if (nr == FAN_INPUT) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 505 | val = data->fan[index] & 0x0fff; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 506 | else |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 507 | val = data->fan_min[index] & 0x0fff; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 508 | |
| 509 | return sprintf(buf, "%lu\n", FAN_FROM_REG(val)); |
| 510 | } |
| 511 | |
| 512 | static ssize_t |
| 513 | store_fan_min(struct device *dev, struct device_attribute *attr, |
| 514 | const char *buf, size_t count) |
| 515 | { |
| 516 | struct sensor_device_attribute_2 *sensor_attr = |
| 517 | to_sensor_dev_attr_2(attr); |
| 518 | int index = sensor_attr->index; |
| 519 | struct i2c_client *client = to_i2c_client(dev); |
| 520 | struct w83793_data *data = i2c_get_clientdata(client); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 521 | unsigned long val; |
| 522 | int err; |
| 523 | |
| 524 | err = kstrtoul(buf, 10, &val); |
| 525 | if (err) |
| 526 | return err; |
| 527 | val = FAN_TO_REG(val); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 528 | |
| 529 | mutex_lock(&data->update_lock); |
| 530 | data->fan_min[index] = val; |
| 531 | w83793_write_value(client, W83793_REG_FAN_MIN(index), |
| 532 | (val >> 8) & 0xff); |
| 533 | w83793_write_value(client, W83793_REG_FAN_MIN(index) + 1, val & 0xff); |
| 534 | mutex_unlock(&data->update_lock); |
| 535 | |
| 536 | return count; |
| 537 | } |
| 538 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 539 | static ssize_t |
| 540 | show_pwm(struct device *dev, struct device_attribute *attr, char *buf) |
| 541 | { |
| 542 | struct sensor_device_attribute_2 *sensor_attr = |
| 543 | to_sensor_dev_attr_2(attr); |
| 544 | struct w83793_data *data = w83793_update_device(dev); |
| 545 | u16 val; |
| 546 | int nr = sensor_attr->nr; |
| 547 | int index = sensor_attr->index; |
| 548 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 549 | if (nr == PWM_STOP_TIME) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 550 | val = TIME_FROM_REG(data->pwm_stop_time[index]); |
| 551 | else |
| 552 | val = (data->pwm[index][nr] & 0x3f) << 2; |
| 553 | |
| 554 | return sprintf(buf, "%d\n", val); |
| 555 | } |
| 556 | |
| 557 | static ssize_t |
| 558 | store_pwm(struct device *dev, struct device_attribute *attr, |
| 559 | const char *buf, size_t count) |
| 560 | { |
| 561 | struct i2c_client *client = to_i2c_client(dev); |
| 562 | struct w83793_data *data = i2c_get_clientdata(client); |
| 563 | struct sensor_device_attribute_2 *sensor_attr = |
| 564 | to_sensor_dev_attr_2(attr); |
| 565 | int nr = sensor_attr->nr; |
| 566 | int index = sensor_attr->index; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 567 | unsigned long val; |
| 568 | int err; |
| 569 | |
| 570 | err = kstrtoul(buf, 10, &val); |
| 571 | if (err) |
| 572 | return err; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 573 | |
| 574 | mutex_lock(&data->update_lock); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 575 | if (nr == PWM_STOP_TIME) { |
| 576 | val = TIME_TO_REG(val); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 577 | data->pwm_stop_time[index] = val; |
| 578 | w83793_write_value(client, W83793_REG_PWM_STOP_TIME(index), |
| 579 | val); |
| 580 | } else { |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 581 | val = SENSORS_LIMIT(val, 0, 0xff) >> 2; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 582 | data->pwm[index][nr] = |
| 583 | w83793_read_value(client, W83793_REG_PWM(index, nr)) & 0xc0; |
| 584 | data->pwm[index][nr] |= val; |
| 585 | w83793_write_value(client, W83793_REG_PWM(index, nr), |
| 586 | data->pwm[index][nr]); |
| 587 | } |
| 588 | |
| 589 | mutex_unlock(&data->update_lock); |
| 590 | return count; |
| 591 | } |
| 592 | |
| 593 | static ssize_t |
| 594 | show_temp(struct device *dev, struct device_attribute *attr, char *buf) |
| 595 | { |
| 596 | struct sensor_device_attribute_2 *sensor_attr = |
| 597 | to_sensor_dev_attr_2(attr); |
| 598 | int nr = sensor_attr->nr; |
| 599 | int index = sensor_attr->index; |
| 600 | struct w83793_data *data = w83793_update_device(dev); |
| 601 | long temp = TEMP_FROM_REG(data->temp[index][nr]); |
| 602 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 603 | if (nr == TEMP_READ && index < 4) { /* Only TD1-TD4 have low bits */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 604 | int low = ((data->temp_low_bits >> (index * 2)) & 0x03) * 250; |
| 605 | temp += temp > 0 ? low : -low; |
| 606 | } |
| 607 | return sprintf(buf, "%ld\n", temp); |
| 608 | } |
| 609 | |
| 610 | static ssize_t |
| 611 | store_temp(struct device *dev, struct device_attribute *attr, |
| 612 | const char *buf, size_t count) |
| 613 | { |
| 614 | struct sensor_device_attribute_2 *sensor_attr = |
| 615 | to_sensor_dev_attr_2(attr); |
| 616 | int nr = sensor_attr->nr; |
| 617 | int index = sensor_attr->index; |
| 618 | struct i2c_client *client = to_i2c_client(dev); |
| 619 | struct w83793_data *data = i2c_get_clientdata(client); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 620 | long tmp; |
| 621 | int err; |
| 622 | |
| 623 | err = kstrtol(buf, 10, &tmp); |
| 624 | if (err) |
| 625 | return err; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 626 | |
| 627 | mutex_lock(&data->update_lock); |
| 628 | data->temp[index][nr] = TEMP_TO_REG(tmp, -128, 127); |
| 629 | w83793_write_value(client, W83793_REG_TEMP[index][nr], |
| 630 | data->temp[index][nr]); |
| 631 | mutex_unlock(&data->update_lock); |
| 632 | return count; |
| 633 | } |
| 634 | |
| 635 | /* |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 636 | * TD1-TD4 |
| 637 | * each has 4 mode:(2 bits) |
| 638 | * 0: Stop monitor |
| 639 | * 1: Use internal temp sensor(default) |
| 640 | * 2: Reserved |
| 641 | * 3: Use sensor in Intel CPU and get result by PECI |
| 642 | * |
| 643 | * TR1-TR2 |
| 644 | * each has 2 mode:(1 bit) |
| 645 | * 0: Disable temp sensor monitor |
| 646 | * 1: To enable temp sensors monitor |
| 647 | */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 648 | |
Gong Jun | ddca933 | 2007-01-18 22:14:23 +0100 | [diff] [blame] | 649 | /* 0 disable, 6 PECI */ |
| 650 | static u8 TO_TEMP_MODE[] = { 0, 0, 0, 6 }; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 651 | |
| 652 | static ssize_t |
| 653 | show_temp_mode(struct device *dev, struct device_attribute *attr, char *buf) |
| 654 | { |
| 655 | struct w83793_data *data = w83793_update_device(dev); |
| 656 | struct sensor_device_attribute_2 *sensor_attr = |
| 657 | to_sensor_dev_attr_2(attr); |
| 658 | int index = sensor_attr->index; |
| 659 | u8 mask = (index < 4) ? 0x03 : 0x01; |
| 660 | u8 shift = (index < 4) ? (2 * index) : (index - 4); |
| 661 | u8 tmp; |
| 662 | index = (index < 4) ? 0 : 1; |
| 663 | |
| 664 | tmp = (data->temp_mode[index] >> shift) & mask; |
| 665 | |
| 666 | /* for the internal sensor, found out if diode or thermistor */ |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 667 | if (tmp == 1) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 668 | tmp = index == 0 ? 3 : 4; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 669 | else |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 670 | tmp = TO_TEMP_MODE[tmp]; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 671 | |
| 672 | return sprintf(buf, "%d\n", tmp); |
| 673 | } |
| 674 | |
| 675 | static ssize_t |
| 676 | store_temp_mode(struct device *dev, struct device_attribute *attr, |
| 677 | const char *buf, size_t count) |
| 678 | { |
| 679 | struct i2c_client *client = to_i2c_client(dev); |
| 680 | struct w83793_data *data = i2c_get_clientdata(client); |
| 681 | struct sensor_device_attribute_2 *sensor_attr = |
| 682 | to_sensor_dev_attr_2(attr); |
| 683 | int index = sensor_attr->index; |
| 684 | u8 mask = (index < 4) ? 0x03 : 0x01; |
| 685 | u8 shift = (index < 4) ? (2 * index) : (index - 4); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 686 | unsigned long val; |
| 687 | int err; |
| 688 | |
| 689 | err = kstrtoul(buf, 10, &val); |
| 690 | if (err) |
| 691 | return err; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 692 | |
| 693 | /* transform the sysfs interface values into table above */ |
Gong Jun | ddca933 | 2007-01-18 22:14:23 +0100 | [diff] [blame] | 694 | if ((val == 6) && (index < 4)) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 695 | val -= 3; |
| 696 | } else if ((val == 3 && index < 4) |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 697 | || (val == 4 && index >= 4)) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 698 | /* transform diode or thermistor into internal enable */ |
| 699 | val = !!val; |
| 700 | } else { |
| 701 | return -EINVAL; |
| 702 | } |
| 703 | |
| 704 | index = (index < 4) ? 0 : 1; |
| 705 | mutex_lock(&data->update_lock); |
| 706 | data->temp_mode[index] = |
| 707 | w83793_read_value(client, W83793_REG_TEMP_MODE[index]); |
| 708 | data->temp_mode[index] &= ~(mask << shift); |
| 709 | data->temp_mode[index] |= val << shift; |
| 710 | w83793_write_value(client, W83793_REG_TEMP_MODE[index], |
| 711 | data->temp_mode[index]); |
| 712 | mutex_unlock(&data->update_lock); |
| 713 | |
| 714 | return count; |
| 715 | } |
| 716 | |
| 717 | #define SETUP_PWM_DEFAULT 0 |
| 718 | #define SETUP_PWM_UPTIME 1 /* Unit in 0.1s */ |
| 719 | #define SETUP_PWM_DOWNTIME 2 /* Unit in 0.1s */ |
| 720 | #define SETUP_TEMP_CRITICAL 3 |
| 721 | static ssize_t |
| 722 | show_sf_setup(struct device *dev, struct device_attribute *attr, char *buf) |
| 723 | { |
| 724 | struct sensor_device_attribute_2 *sensor_attr = |
| 725 | to_sensor_dev_attr_2(attr); |
| 726 | int nr = sensor_attr->nr; |
| 727 | struct w83793_data *data = w83793_update_device(dev); |
| 728 | u32 val = 0; |
| 729 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 730 | if (nr == SETUP_PWM_DEFAULT) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 731 | val = (data->pwm_default & 0x3f) << 2; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 732 | else if (nr == SETUP_PWM_UPTIME) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 733 | val = TIME_FROM_REG(data->pwm_uptime); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 734 | else if (nr == SETUP_PWM_DOWNTIME) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 735 | val = TIME_FROM_REG(data->pwm_downtime); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 736 | else if (nr == SETUP_TEMP_CRITICAL) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 737 | val = TEMP_FROM_REG(data->temp_critical & 0x7f); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 738 | |
| 739 | return sprintf(buf, "%d\n", val); |
| 740 | } |
| 741 | |
| 742 | static ssize_t |
| 743 | store_sf_setup(struct device *dev, struct device_attribute *attr, |
| 744 | const char *buf, size_t count) |
| 745 | { |
| 746 | struct sensor_device_attribute_2 *sensor_attr = |
| 747 | to_sensor_dev_attr_2(attr); |
| 748 | int nr = sensor_attr->nr; |
| 749 | struct i2c_client *client = to_i2c_client(dev); |
| 750 | struct w83793_data *data = i2c_get_clientdata(client); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 751 | long val; |
| 752 | int err; |
| 753 | |
| 754 | err = kstrtol(buf, 10, &val); |
| 755 | if (err) |
| 756 | return err; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 757 | |
| 758 | mutex_lock(&data->update_lock); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 759 | if (nr == SETUP_PWM_DEFAULT) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 760 | data->pwm_default = |
| 761 | w83793_read_value(client, W83793_REG_PWM_DEFAULT) & 0xc0; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 762 | data->pwm_default |= SENSORS_LIMIT(val, 0, 0xff) >> 2; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 763 | w83793_write_value(client, W83793_REG_PWM_DEFAULT, |
| 764 | data->pwm_default); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 765 | } else if (nr == SETUP_PWM_UPTIME) { |
| 766 | data->pwm_uptime = TIME_TO_REG(val); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 767 | data->pwm_uptime += data->pwm_uptime == 0 ? 1 : 0; |
| 768 | w83793_write_value(client, W83793_REG_PWM_UPTIME, |
| 769 | data->pwm_uptime); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 770 | } else if (nr == SETUP_PWM_DOWNTIME) { |
| 771 | data->pwm_downtime = TIME_TO_REG(val); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 772 | data->pwm_downtime += data->pwm_downtime == 0 ? 1 : 0; |
| 773 | w83793_write_value(client, W83793_REG_PWM_DOWNTIME, |
| 774 | data->pwm_downtime); |
| 775 | } else { /* SETUP_TEMP_CRITICAL */ |
| 776 | data->temp_critical = |
| 777 | w83793_read_value(client, W83793_REG_TEMP_CRITICAL) & 0x80; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 778 | data->temp_critical |= TEMP_TO_REG(val, 0, 0x7f); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 779 | w83793_write_value(client, W83793_REG_TEMP_CRITICAL, |
| 780 | data->temp_critical); |
| 781 | } |
| 782 | |
| 783 | mutex_unlock(&data->update_lock); |
| 784 | return count; |
| 785 | } |
| 786 | |
| 787 | /* |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 788 | * Temp SmartFan control |
| 789 | * TEMP_FAN_MAP |
| 790 | * Temp channel control which pwm fan, bitfield, bit 0 indicate pwm1... |
| 791 | * It's possible two or more temp channels control the same fan, w83793 |
| 792 | * always prefers to pick the most critical request and applies it to |
| 793 | * the related Fan. |
| 794 | * It's possible one fan is not in any mapping of 6 temp channels, this |
| 795 | * means the fan is manual mode |
| 796 | * |
| 797 | * TEMP_PWM_ENABLE |
| 798 | * Each temp channel has its own SmartFan mode, and temp channel |
| 799 | * control fans that are set by TEMP_FAN_MAP |
| 800 | * 0: SmartFanII mode |
| 801 | * 1: Thermal Cruise Mode |
| 802 | * |
| 803 | * TEMP_CRUISE |
| 804 | * Target temperature in thermal cruise mode, w83793 will try to turn |
| 805 | * fan speed to keep the temperature of target device around this |
| 806 | * temperature. |
| 807 | * |
| 808 | * TEMP_TOLERANCE |
| 809 | * If Temp higher or lower than target with this tolerance, w83793 |
| 810 | * will take actions to speed up or slow down the fan to keep the |
| 811 | * temperature within the tolerance range. |
| 812 | */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 813 | |
| 814 | #define TEMP_FAN_MAP 0 |
| 815 | #define TEMP_PWM_ENABLE 1 |
| 816 | #define TEMP_CRUISE 2 |
| 817 | #define TEMP_TOLERANCE 3 |
| 818 | static ssize_t |
| 819 | show_sf_ctrl(struct device *dev, struct device_attribute *attr, char *buf) |
| 820 | { |
| 821 | struct sensor_device_attribute_2 *sensor_attr = |
| 822 | to_sensor_dev_attr_2(attr); |
| 823 | int nr = sensor_attr->nr; |
| 824 | int index = sensor_attr->index; |
| 825 | struct w83793_data *data = w83793_update_device(dev); |
| 826 | u32 val; |
| 827 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 828 | if (nr == TEMP_FAN_MAP) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 829 | val = data->temp_fan_map[index]; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 830 | } else if (nr == TEMP_PWM_ENABLE) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 831 | /* +2 to transfrom into 2 and 3 to conform with sysfs intf */ |
| 832 | val = ((data->pwm_enable >> index) & 0x01) + 2; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 833 | } else if (nr == TEMP_CRUISE) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 834 | val = TEMP_FROM_REG(data->temp_cruise[index] & 0x7f); |
| 835 | } else { /* TEMP_TOLERANCE */ |
| 836 | val = data->tolerance[index >> 1] >> ((index & 0x01) ? 4 : 0); |
| 837 | val = TEMP_FROM_REG(val & 0x0f); |
| 838 | } |
| 839 | return sprintf(buf, "%d\n", val); |
| 840 | } |
| 841 | |
| 842 | static ssize_t |
| 843 | store_sf_ctrl(struct device *dev, struct device_attribute *attr, |
| 844 | const char *buf, size_t count) |
| 845 | { |
| 846 | struct sensor_device_attribute_2 *sensor_attr = |
| 847 | to_sensor_dev_attr_2(attr); |
| 848 | int nr = sensor_attr->nr; |
| 849 | int index = sensor_attr->index; |
| 850 | struct i2c_client *client = to_i2c_client(dev); |
| 851 | struct w83793_data *data = i2c_get_clientdata(client); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 852 | long val; |
| 853 | int err; |
| 854 | |
| 855 | err = kstrtol(buf, 10, &val); |
| 856 | if (err) |
| 857 | return err; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 858 | |
| 859 | mutex_lock(&data->update_lock); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 860 | if (nr == TEMP_FAN_MAP) { |
| 861 | val = SENSORS_LIMIT(val, 0, 255); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 862 | w83793_write_value(client, W83793_REG_TEMP_FAN_MAP(index), val); |
| 863 | data->temp_fan_map[index] = val; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 864 | } else if (nr == TEMP_PWM_ENABLE) { |
| 865 | if (val == 2 || val == 3) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 866 | data->pwm_enable = |
| 867 | w83793_read_value(client, W83793_REG_PWM_ENABLE); |
| 868 | if (val - 2) |
| 869 | data->pwm_enable |= 1 << index; |
| 870 | else |
| 871 | data->pwm_enable &= ~(1 << index); |
| 872 | w83793_write_value(client, W83793_REG_PWM_ENABLE, |
| 873 | data->pwm_enable); |
| 874 | } else { |
| 875 | mutex_unlock(&data->update_lock); |
| 876 | return -EINVAL; |
| 877 | } |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 878 | } else if (nr == TEMP_CRUISE) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 879 | data->temp_cruise[index] = |
| 880 | w83793_read_value(client, W83793_REG_TEMP_CRUISE(index)); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 881 | data->temp_cruise[index] &= 0x80; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 882 | data->temp_cruise[index] |= TEMP_TO_REG(val, 0, 0x7f); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 883 | |
| 884 | w83793_write_value(client, W83793_REG_TEMP_CRUISE(index), |
| 885 | data->temp_cruise[index]); |
| 886 | } else { /* TEMP_TOLERANCE */ |
| 887 | int i = index >> 1; |
| 888 | u8 shift = (index & 0x01) ? 4 : 0; |
| 889 | data->tolerance[i] = |
| 890 | w83793_read_value(client, W83793_REG_TEMP_TOL(i)); |
| 891 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 892 | data->tolerance[i] &= ~(0x0f << shift); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 893 | data->tolerance[i] |= TEMP_TO_REG(val, 0, 0x0f) << shift; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 894 | w83793_write_value(client, W83793_REG_TEMP_TOL(i), |
| 895 | data->tolerance[i]); |
| 896 | } |
| 897 | |
| 898 | mutex_unlock(&data->update_lock); |
| 899 | return count; |
| 900 | } |
| 901 | |
| 902 | static ssize_t |
| 903 | show_sf2_pwm(struct device *dev, struct device_attribute *attr, char *buf) |
| 904 | { |
| 905 | struct sensor_device_attribute_2 *sensor_attr = |
| 906 | to_sensor_dev_attr_2(attr); |
| 907 | int nr = sensor_attr->nr; |
| 908 | int index = sensor_attr->index; |
| 909 | struct w83793_data *data = w83793_update_device(dev); |
| 910 | |
| 911 | return sprintf(buf, "%d\n", (data->sf2_pwm[index][nr] & 0x3f) << 2); |
| 912 | } |
| 913 | |
| 914 | static ssize_t |
| 915 | store_sf2_pwm(struct device *dev, struct device_attribute *attr, |
| 916 | const char *buf, size_t count) |
| 917 | { |
| 918 | struct i2c_client *client = to_i2c_client(dev); |
| 919 | struct w83793_data *data = i2c_get_clientdata(client); |
| 920 | struct sensor_device_attribute_2 *sensor_attr = |
| 921 | to_sensor_dev_attr_2(attr); |
| 922 | int nr = sensor_attr->nr; |
| 923 | int index = sensor_attr->index; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 924 | unsigned long val; |
| 925 | int err; |
| 926 | |
| 927 | err = kstrtoul(buf, 10, &val); |
| 928 | if (err) |
| 929 | return err; |
| 930 | val = SENSORS_LIMIT(val, 0, 0xff) >> 2; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 931 | |
| 932 | mutex_lock(&data->update_lock); |
| 933 | data->sf2_pwm[index][nr] = |
| 934 | w83793_read_value(client, W83793_REG_SF2_PWM(index, nr)) & 0xc0; |
| 935 | data->sf2_pwm[index][nr] |= val; |
| 936 | w83793_write_value(client, W83793_REG_SF2_PWM(index, nr), |
| 937 | data->sf2_pwm[index][nr]); |
| 938 | mutex_unlock(&data->update_lock); |
| 939 | return count; |
| 940 | } |
| 941 | |
| 942 | static ssize_t |
| 943 | show_sf2_temp(struct device *dev, struct device_attribute *attr, char *buf) |
| 944 | { |
| 945 | struct sensor_device_attribute_2 *sensor_attr = |
| 946 | to_sensor_dev_attr_2(attr); |
| 947 | int nr = sensor_attr->nr; |
| 948 | int index = sensor_attr->index; |
| 949 | struct w83793_data *data = w83793_update_device(dev); |
| 950 | |
| 951 | return sprintf(buf, "%ld\n", |
| 952 | TEMP_FROM_REG(data->sf2_temp[index][nr] & 0x7f)); |
| 953 | } |
| 954 | |
| 955 | static ssize_t |
| 956 | store_sf2_temp(struct device *dev, struct device_attribute *attr, |
| 957 | const char *buf, size_t count) |
| 958 | { |
| 959 | struct i2c_client *client = to_i2c_client(dev); |
| 960 | struct w83793_data *data = i2c_get_clientdata(client); |
| 961 | struct sensor_device_attribute_2 *sensor_attr = |
| 962 | to_sensor_dev_attr_2(attr); |
| 963 | int nr = sensor_attr->nr; |
| 964 | int index = sensor_attr->index; |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 965 | long val; |
| 966 | int err; |
| 967 | |
| 968 | err = kstrtol(buf, 10, &val); |
| 969 | if (err) |
| 970 | return err; |
| 971 | val = TEMP_TO_REG(val, 0, 0x7f); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 972 | |
| 973 | mutex_lock(&data->update_lock); |
| 974 | data->sf2_temp[index][nr] = |
| 975 | w83793_read_value(client, W83793_REG_SF2_TEMP(index, nr)) & 0x80; |
| 976 | data->sf2_temp[index][nr] |= val; |
| 977 | w83793_write_value(client, W83793_REG_SF2_TEMP(index, nr), |
| 978 | data->sf2_temp[index][nr]); |
| 979 | mutex_unlock(&data->update_lock); |
| 980 | return count; |
| 981 | } |
| 982 | |
| 983 | /* only Vcore A/B and Vtt have additional 2 bits precision */ |
| 984 | static ssize_t |
| 985 | show_in(struct device *dev, struct device_attribute *attr, char *buf) |
| 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 w83793_data *data = w83793_update_device(dev); |
| 992 | u16 val = data->in[index][nr]; |
| 993 | |
| 994 | if (index < 3) { |
| 995 | val <<= 2; |
| 996 | val += (data->in_low_bits[nr] >> (index * 2)) & 0x3; |
| 997 | } |
Gong Jun | ddca933 | 2007-01-18 22:14:23 +0100 | [diff] [blame] | 998 | /* voltage inputs 5VDD and 5VSB needs 150mV offset */ |
| 999 | val = val * scale_in[index] + scale_in_add[index]; |
| 1000 | return sprintf(buf, "%d\n", val); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1001 | } |
| 1002 | |
| 1003 | static ssize_t |
| 1004 | store_in(struct device *dev, struct device_attribute *attr, |
| 1005 | const char *buf, size_t count) |
| 1006 | { |
| 1007 | struct sensor_device_attribute_2 *sensor_attr = |
| 1008 | to_sensor_dev_attr_2(attr); |
| 1009 | int nr = sensor_attr->nr; |
| 1010 | int index = sensor_attr->index; |
| 1011 | struct i2c_client *client = to_i2c_client(dev); |
| 1012 | struct w83793_data *data = i2c_get_clientdata(client); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1013 | unsigned long val; |
| 1014 | int err; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1015 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1016 | err = kstrtoul(buf, 10, &val); |
| 1017 | if (err) |
| 1018 | return err; |
| 1019 | val = (val + scale_in[index] / 2) / scale_in[index]; |
| 1020 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1021 | mutex_lock(&data->update_lock); |
| 1022 | if (index > 2) { |
Gong Jun | ddca933 | 2007-01-18 22:14:23 +0100 | [diff] [blame] | 1023 | /* fix the limit values of 5VDD and 5VSB to ALARM mechanism */ |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1024 | if (nr == 1 || nr == 2) |
Gong Jun | ddca933 | 2007-01-18 22:14:23 +0100 | [diff] [blame] | 1025 | val -= scale_in_add[index] / scale_in[index]; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1026 | val = SENSORS_LIMIT(val, 0, 255); |
| 1027 | } else { |
| 1028 | val = SENSORS_LIMIT(val, 0, 0x3FF); |
| 1029 | data->in_low_bits[nr] = |
| 1030 | w83793_read_value(client, W83793_REG_IN_LOW_BITS[nr]); |
| 1031 | data->in_low_bits[nr] &= ~(0x03 << (2 * index)); |
| 1032 | data->in_low_bits[nr] |= (val & 0x03) << (2 * index); |
| 1033 | w83793_write_value(client, W83793_REG_IN_LOW_BITS[nr], |
| 1034 | data->in_low_bits[nr]); |
| 1035 | val >>= 2; |
| 1036 | } |
| 1037 | data->in[index][nr] = val; |
| 1038 | w83793_write_value(client, W83793_REG_IN[index][nr], |
| 1039 | data->in[index][nr]); |
| 1040 | mutex_unlock(&data->update_lock); |
| 1041 | return count; |
| 1042 | } |
| 1043 | |
| 1044 | #define NOT_USED -1 |
| 1045 | |
| 1046 | #define SENSOR_ATTR_IN(index) \ |
| 1047 | SENSOR_ATTR_2(in##index##_input, S_IRUGO, show_in, NULL, \ |
| 1048 | IN_READ, index), \ |
| 1049 | SENSOR_ATTR_2(in##index##_max, S_IRUGO | S_IWUSR, show_in, \ |
| 1050 | store_in, IN_MAX, index), \ |
| 1051 | SENSOR_ATTR_2(in##index##_min, S_IRUGO | S_IWUSR, show_in, \ |
| 1052 | store_in, IN_LOW, index), \ |
| 1053 | SENSOR_ATTR_2(in##index##_alarm, S_IRUGO, show_alarm_beep, \ |
| 1054 | NULL, ALARM_STATUS, index + ((index > 2) ? 1 : 0)), \ |
| 1055 | SENSOR_ATTR_2(in##index##_beep, S_IWUSR | S_IRUGO, \ |
| 1056 | show_alarm_beep, store_beep, BEEP_ENABLE, \ |
| 1057 | index + ((index > 2) ? 1 : 0)) |
| 1058 | |
| 1059 | #define SENSOR_ATTR_FAN(index) \ |
| 1060 | SENSOR_ATTR_2(fan##index##_alarm, S_IRUGO, show_alarm_beep, \ |
| 1061 | NULL, ALARM_STATUS, index + 17), \ |
| 1062 | SENSOR_ATTR_2(fan##index##_beep, S_IWUSR | S_IRUGO, \ |
| 1063 | show_alarm_beep, store_beep, BEEP_ENABLE, index + 17), \ |
| 1064 | SENSOR_ATTR_2(fan##index##_input, S_IRUGO, show_fan, \ |
| 1065 | NULL, FAN_INPUT, index - 1), \ |
| 1066 | SENSOR_ATTR_2(fan##index##_min, S_IWUSR | S_IRUGO, \ |
| 1067 | show_fan, store_fan_min, FAN_MIN, index - 1) |
| 1068 | |
| 1069 | #define SENSOR_ATTR_PWM(index) \ |
| 1070 | SENSOR_ATTR_2(pwm##index, S_IWUSR | S_IRUGO, show_pwm, \ |
| 1071 | store_pwm, PWM_DUTY, index - 1), \ |
| 1072 | SENSOR_ATTR_2(pwm##index##_nonstop, S_IWUSR | S_IRUGO, \ |
| 1073 | show_pwm, store_pwm, PWM_NONSTOP, index - 1), \ |
| 1074 | SENSOR_ATTR_2(pwm##index##_start, S_IWUSR | S_IRUGO, \ |
| 1075 | show_pwm, store_pwm, PWM_START, index - 1), \ |
| 1076 | SENSOR_ATTR_2(pwm##index##_stop_time, S_IWUSR | S_IRUGO, \ |
| 1077 | show_pwm, store_pwm, PWM_STOP_TIME, index - 1) |
| 1078 | |
| 1079 | #define SENSOR_ATTR_TEMP(index) \ |
| 1080 | SENSOR_ATTR_2(temp##index##_type, S_IRUGO | S_IWUSR, \ |
| 1081 | show_temp_mode, store_temp_mode, NOT_USED, index - 1), \ |
| 1082 | SENSOR_ATTR_2(temp##index##_input, S_IRUGO, show_temp, \ |
| 1083 | NULL, TEMP_READ, index - 1), \ |
| 1084 | SENSOR_ATTR_2(temp##index##_max, S_IRUGO | S_IWUSR, show_temp, \ |
| 1085 | store_temp, TEMP_CRIT, index - 1), \ |
| 1086 | SENSOR_ATTR_2(temp##index##_max_hyst, S_IRUGO | S_IWUSR, \ |
| 1087 | show_temp, store_temp, TEMP_CRIT_HYST, index - 1), \ |
| 1088 | SENSOR_ATTR_2(temp##index##_warn, S_IRUGO | S_IWUSR, show_temp, \ |
| 1089 | store_temp, TEMP_WARN, index - 1), \ |
| 1090 | SENSOR_ATTR_2(temp##index##_warn_hyst, S_IRUGO | S_IWUSR, \ |
| 1091 | show_temp, store_temp, TEMP_WARN_HYST, index - 1), \ |
| 1092 | SENSOR_ATTR_2(temp##index##_alarm, S_IRUGO, \ |
| 1093 | show_alarm_beep, NULL, ALARM_STATUS, index + 11), \ |
| 1094 | SENSOR_ATTR_2(temp##index##_beep, S_IWUSR | S_IRUGO, \ |
| 1095 | show_alarm_beep, store_beep, BEEP_ENABLE, index + 11), \ |
| 1096 | SENSOR_ATTR_2(temp##index##_auto_channels_pwm, \ |
| 1097 | S_IRUGO | S_IWUSR, show_sf_ctrl, store_sf_ctrl, \ |
| 1098 | TEMP_FAN_MAP, index - 1), \ |
| 1099 | SENSOR_ATTR_2(temp##index##_pwm_enable, S_IWUSR | S_IRUGO, \ |
| 1100 | show_sf_ctrl, store_sf_ctrl, TEMP_PWM_ENABLE, \ |
| 1101 | index - 1), \ |
| 1102 | SENSOR_ATTR_2(thermal_cruise##index, S_IRUGO | S_IWUSR, \ |
| 1103 | show_sf_ctrl, store_sf_ctrl, TEMP_CRUISE, index - 1), \ |
| 1104 | SENSOR_ATTR_2(tolerance##index, S_IRUGO | S_IWUSR, show_sf_ctrl,\ |
| 1105 | store_sf_ctrl, TEMP_TOLERANCE, index - 1), \ |
| 1106 | SENSOR_ATTR_2(temp##index##_auto_point1_pwm, S_IRUGO | S_IWUSR, \ |
| 1107 | show_sf2_pwm, store_sf2_pwm, 0, index - 1), \ |
| 1108 | SENSOR_ATTR_2(temp##index##_auto_point2_pwm, S_IRUGO | S_IWUSR, \ |
| 1109 | show_sf2_pwm, store_sf2_pwm, 1, index - 1), \ |
| 1110 | SENSOR_ATTR_2(temp##index##_auto_point3_pwm, S_IRUGO | S_IWUSR, \ |
| 1111 | show_sf2_pwm, store_sf2_pwm, 2, index - 1), \ |
| 1112 | SENSOR_ATTR_2(temp##index##_auto_point4_pwm, S_IRUGO | S_IWUSR, \ |
| 1113 | show_sf2_pwm, store_sf2_pwm, 3, index - 1), \ |
| 1114 | SENSOR_ATTR_2(temp##index##_auto_point5_pwm, S_IRUGO | S_IWUSR, \ |
| 1115 | show_sf2_pwm, store_sf2_pwm, 4, index - 1), \ |
| 1116 | SENSOR_ATTR_2(temp##index##_auto_point6_pwm, S_IRUGO | S_IWUSR, \ |
| 1117 | show_sf2_pwm, store_sf2_pwm, 5, index - 1), \ |
| 1118 | SENSOR_ATTR_2(temp##index##_auto_point7_pwm, S_IRUGO | S_IWUSR, \ |
| 1119 | show_sf2_pwm, store_sf2_pwm, 6, index - 1), \ |
| 1120 | SENSOR_ATTR_2(temp##index##_auto_point1_temp, S_IRUGO | S_IWUSR,\ |
| 1121 | show_sf2_temp, store_sf2_temp, 0, index - 1), \ |
| 1122 | SENSOR_ATTR_2(temp##index##_auto_point2_temp, S_IRUGO | S_IWUSR,\ |
| 1123 | show_sf2_temp, store_sf2_temp, 1, index - 1), \ |
| 1124 | SENSOR_ATTR_2(temp##index##_auto_point3_temp, S_IRUGO | S_IWUSR,\ |
| 1125 | show_sf2_temp, store_sf2_temp, 2, index - 1), \ |
| 1126 | SENSOR_ATTR_2(temp##index##_auto_point4_temp, S_IRUGO | S_IWUSR,\ |
| 1127 | show_sf2_temp, store_sf2_temp, 3, index - 1), \ |
| 1128 | SENSOR_ATTR_2(temp##index##_auto_point5_temp, S_IRUGO | S_IWUSR,\ |
| 1129 | show_sf2_temp, store_sf2_temp, 4, index - 1), \ |
| 1130 | SENSOR_ATTR_2(temp##index##_auto_point6_temp, S_IRUGO | S_IWUSR,\ |
| 1131 | show_sf2_temp, store_sf2_temp, 5, index - 1), \ |
| 1132 | SENSOR_ATTR_2(temp##index##_auto_point7_temp, S_IRUGO | S_IWUSR,\ |
| 1133 | show_sf2_temp, store_sf2_temp, 6, index - 1) |
| 1134 | |
| 1135 | static struct sensor_device_attribute_2 w83793_sensor_attr_2[] = { |
| 1136 | SENSOR_ATTR_IN(0), |
| 1137 | SENSOR_ATTR_IN(1), |
| 1138 | SENSOR_ATTR_IN(2), |
| 1139 | SENSOR_ATTR_IN(3), |
| 1140 | SENSOR_ATTR_IN(4), |
| 1141 | SENSOR_ATTR_IN(5), |
| 1142 | SENSOR_ATTR_IN(6), |
| 1143 | SENSOR_ATTR_IN(7), |
| 1144 | SENSOR_ATTR_IN(8), |
| 1145 | SENSOR_ATTR_IN(9), |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1146 | SENSOR_ATTR_FAN(1), |
| 1147 | SENSOR_ATTR_FAN(2), |
| 1148 | SENSOR_ATTR_FAN(3), |
| 1149 | SENSOR_ATTR_FAN(4), |
| 1150 | SENSOR_ATTR_FAN(5), |
| 1151 | SENSOR_ATTR_PWM(1), |
| 1152 | SENSOR_ATTR_PWM(2), |
| 1153 | SENSOR_ATTR_PWM(3), |
| 1154 | }; |
| 1155 | |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1156 | static struct sensor_device_attribute_2 w83793_temp[] = { |
| 1157 | SENSOR_ATTR_TEMP(1), |
| 1158 | SENSOR_ATTR_TEMP(2), |
| 1159 | SENSOR_ATTR_TEMP(3), |
| 1160 | SENSOR_ATTR_TEMP(4), |
| 1161 | SENSOR_ATTR_TEMP(5), |
| 1162 | SENSOR_ATTR_TEMP(6), |
| 1163 | }; |
| 1164 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1165 | /* Fan6-Fan12 */ |
| 1166 | static struct sensor_device_attribute_2 w83793_left_fan[] = { |
| 1167 | SENSOR_ATTR_FAN(6), |
| 1168 | SENSOR_ATTR_FAN(7), |
| 1169 | SENSOR_ATTR_FAN(8), |
| 1170 | SENSOR_ATTR_FAN(9), |
| 1171 | SENSOR_ATTR_FAN(10), |
| 1172 | SENSOR_ATTR_FAN(11), |
| 1173 | SENSOR_ATTR_FAN(12), |
| 1174 | }; |
| 1175 | |
| 1176 | /* Pwm4-Pwm8 */ |
| 1177 | static struct sensor_device_attribute_2 w83793_left_pwm[] = { |
| 1178 | SENSOR_ATTR_PWM(4), |
| 1179 | SENSOR_ATTR_PWM(5), |
| 1180 | SENSOR_ATTR_PWM(6), |
| 1181 | SENSOR_ATTR_PWM(7), |
| 1182 | SENSOR_ATTR_PWM(8), |
| 1183 | }; |
| 1184 | |
Gong Jun | c70a8c3 | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1185 | static struct sensor_device_attribute_2 w83793_vid[] = { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1186 | SENSOR_ATTR_2(cpu0_vid, S_IRUGO, show_vid, NULL, NOT_USED, 0), |
| 1187 | 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] | 1188 | }; |
Jean Delvare | 93c75a4 | 2008-02-12 11:25:07 +0100 | [diff] [blame] | 1189 | static DEVICE_ATTR(vrm, S_IWUSR | S_IRUGO, show_vrm, store_vrm); |
Gong Jun | c70a8c3 | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1190 | |
| 1191 | static struct sensor_device_attribute_2 sda_single_files[] = { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1192 | SENSOR_ATTR_2(chassis, S_IWUSR | S_IRUGO, show_alarm_beep, |
Jean Delvare | a516dc3 | 2011-01-12 21:55:10 +0100 | [diff] [blame] | 1193 | store_chassis_clear_legacy, ALARM_STATUS, 30), |
| 1194 | SENSOR_ATTR_2(intrusion0_alarm, S_IWUSR | S_IRUGO, show_alarm_beep, |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1195 | store_chassis_clear, ALARM_STATUS, 30), |
| 1196 | SENSOR_ATTR_2(beep_enable, S_IWUSR | S_IRUGO, show_beep_enable, |
| 1197 | store_beep_enable, NOT_USED, NOT_USED), |
| 1198 | SENSOR_ATTR_2(pwm_default, S_IWUSR | S_IRUGO, show_sf_setup, |
| 1199 | store_sf_setup, SETUP_PWM_DEFAULT, NOT_USED), |
| 1200 | SENSOR_ATTR_2(pwm_uptime, S_IWUSR | S_IRUGO, show_sf_setup, |
| 1201 | store_sf_setup, SETUP_PWM_UPTIME, NOT_USED), |
| 1202 | SENSOR_ATTR_2(pwm_downtime, S_IWUSR | S_IRUGO, show_sf_setup, |
| 1203 | store_sf_setup, SETUP_PWM_DOWNTIME, NOT_USED), |
| 1204 | SENSOR_ATTR_2(temp_critical, S_IWUSR | S_IRUGO, show_sf_setup, |
| 1205 | store_sf_setup, SETUP_TEMP_CRITICAL, NOT_USED), |
| 1206 | }; |
| 1207 | |
| 1208 | static void w83793_init_client(struct i2c_client *client) |
| 1209 | { |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1210 | if (reset) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1211 | w83793_write_value(client, W83793_REG_CONFIG, 0x80); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1212 | |
| 1213 | /* Start monitoring */ |
| 1214 | w83793_write_value(client, W83793_REG_CONFIG, |
| 1215 | w83793_read_value(client, W83793_REG_CONFIG) | 0x01); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1216 | } |
| 1217 | |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1218 | /* |
| 1219 | * Watchdog routines |
| 1220 | */ |
| 1221 | |
| 1222 | static int watchdog_set_timeout(struct w83793_data *data, int timeout) |
| 1223 | { |
| 1224 | int ret, mtimeout; |
| 1225 | |
| 1226 | mtimeout = DIV_ROUND_UP(timeout, 60); |
| 1227 | |
| 1228 | if (mtimeout > 255) |
| 1229 | return -EINVAL; |
| 1230 | |
| 1231 | mutex_lock(&data->watchdog_lock); |
| 1232 | if (!data->client) { |
| 1233 | ret = -ENODEV; |
| 1234 | goto leave; |
| 1235 | } |
| 1236 | |
| 1237 | data->watchdog_timeout = mtimeout; |
| 1238 | |
| 1239 | /* Set Timeout value (in Minutes) */ |
| 1240 | w83793_write_value(data->client, W83793_REG_WDT_TIMEOUT, |
| 1241 | data->watchdog_timeout); |
| 1242 | |
| 1243 | ret = mtimeout * 60; |
| 1244 | |
| 1245 | leave: |
| 1246 | mutex_unlock(&data->watchdog_lock); |
| 1247 | return ret; |
| 1248 | } |
| 1249 | |
| 1250 | static int watchdog_get_timeout(struct w83793_data *data) |
| 1251 | { |
| 1252 | int timeout; |
| 1253 | |
| 1254 | mutex_lock(&data->watchdog_lock); |
| 1255 | timeout = data->watchdog_timeout * 60; |
| 1256 | mutex_unlock(&data->watchdog_lock); |
| 1257 | |
| 1258 | return timeout; |
| 1259 | } |
| 1260 | |
| 1261 | static int watchdog_trigger(struct w83793_data *data) |
| 1262 | { |
| 1263 | int ret = 0; |
| 1264 | |
| 1265 | mutex_lock(&data->watchdog_lock); |
| 1266 | if (!data->client) { |
| 1267 | ret = -ENODEV; |
| 1268 | goto leave; |
| 1269 | } |
| 1270 | |
| 1271 | /* Set Timeout value (in Minutes) */ |
| 1272 | w83793_write_value(data->client, W83793_REG_WDT_TIMEOUT, |
| 1273 | data->watchdog_timeout); |
| 1274 | |
| 1275 | leave: |
| 1276 | mutex_unlock(&data->watchdog_lock); |
| 1277 | return ret; |
| 1278 | } |
| 1279 | |
| 1280 | static int watchdog_enable(struct w83793_data *data) |
| 1281 | { |
| 1282 | int ret = 0; |
| 1283 | |
| 1284 | mutex_lock(&data->watchdog_lock); |
| 1285 | if (!data->client) { |
| 1286 | ret = -ENODEV; |
| 1287 | goto leave; |
| 1288 | } |
| 1289 | |
| 1290 | /* Set initial timeout */ |
| 1291 | w83793_write_value(data->client, W83793_REG_WDT_TIMEOUT, |
| 1292 | data->watchdog_timeout); |
| 1293 | |
| 1294 | /* Enable Soft Watchdog */ |
| 1295 | w83793_write_value(data->client, W83793_REG_WDT_LOCK, 0x55); |
| 1296 | |
| 1297 | leave: |
| 1298 | mutex_unlock(&data->watchdog_lock); |
| 1299 | return ret; |
| 1300 | } |
| 1301 | |
| 1302 | static int watchdog_disable(struct w83793_data *data) |
| 1303 | { |
| 1304 | int ret = 0; |
| 1305 | |
| 1306 | mutex_lock(&data->watchdog_lock); |
| 1307 | if (!data->client) { |
| 1308 | ret = -ENODEV; |
| 1309 | goto leave; |
| 1310 | } |
| 1311 | |
| 1312 | /* Disable Soft Watchdog */ |
| 1313 | w83793_write_value(data->client, W83793_REG_WDT_LOCK, 0xAA); |
| 1314 | |
| 1315 | leave: |
| 1316 | mutex_unlock(&data->watchdog_lock); |
| 1317 | return ret; |
| 1318 | } |
| 1319 | |
| 1320 | static int watchdog_open(struct inode *inode, struct file *filp) |
| 1321 | { |
| 1322 | struct w83793_data *pos, *data = NULL; |
| 1323 | int watchdog_is_open; |
| 1324 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1325 | /* |
| 1326 | * We get called from drivers/char/misc.c with misc_mtx hold, and we |
| 1327 | * call misc_register() from w83793_probe() with watchdog_data_mutex |
| 1328 | * hold, as misc_register() takes the misc_mtx lock, this is a possible |
| 1329 | * deadlock, so we use mutex_trylock here. |
| 1330 | */ |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1331 | if (!mutex_trylock(&watchdog_data_mutex)) |
| 1332 | return -ERESTARTSYS; |
| 1333 | list_for_each_entry(pos, &watchdog_data_list, list) { |
| 1334 | if (pos->watchdog_miscdev.minor == iminor(inode)) { |
| 1335 | data = pos; |
| 1336 | break; |
| 1337 | } |
| 1338 | } |
| 1339 | |
| 1340 | /* Check, if device is already open */ |
| 1341 | watchdog_is_open = test_and_set_bit(0, &data->watchdog_is_open); |
| 1342 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1343 | /* |
| 1344 | * Increase data reference counter (if not already done). |
| 1345 | * Note we can never not have found data, so we don't check for this |
| 1346 | */ |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1347 | if (!watchdog_is_open) |
| 1348 | kref_get(&data->kref); |
| 1349 | |
| 1350 | mutex_unlock(&watchdog_data_mutex); |
| 1351 | |
| 1352 | /* Check, if device is already open and possibly issue error */ |
| 1353 | if (watchdog_is_open) |
| 1354 | return -EBUSY; |
| 1355 | |
| 1356 | /* Enable Soft Watchdog */ |
| 1357 | watchdog_enable(data); |
| 1358 | |
| 1359 | /* Store pointer to data into filp's private data */ |
| 1360 | filp->private_data = data; |
| 1361 | |
| 1362 | return nonseekable_open(inode, filp); |
| 1363 | } |
| 1364 | |
| 1365 | static int watchdog_close(struct inode *inode, struct file *filp) |
| 1366 | { |
| 1367 | struct w83793_data *data = filp->private_data; |
| 1368 | |
| 1369 | if (data->watchdog_expect_close) { |
| 1370 | watchdog_disable(data); |
| 1371 | data->watchdog_expect_close = 0; |
| 1372 | } else { |
| 1373 | watchdog_trigger(data); |
| 1374 | dev_crit(&data->client->dev, |
| 1375 | "unexpected close, not stopping watchdog!\n"); |
| 1376 | } |
| 1377 | |
| 1378 | clear_bit(0, &data->watchdog_is_open); |
| 1379 | |
| 1380 | /* Decrease data reference counter */ |
| 1381 | mutex_lock(&watchdog_data_mutex); |
| 1382 | kref_put(&data->kref, w83793_release_resources); |
| 1383 | mutex_unlock(&watchdog_data_mutex); |
| 1384 | |
| 1385 | return 0; |
| 1386 | } |
| 1387 | |
| 1388 | static ssize_t watchdog_write(struct file *filp, const char __user *buf, |
| 1389 | size_t count, loff_t *offset) |
| 1390 | { |
Dan Carpenter | 3f7cd7e | 2010-03-29 22:03:03 +0200 | [diff] [blame] | 1391 | ssize_t ret; |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1392 | struct w83793_data *data = filp->private_data; |
| 1393 | |
| 1394 | if (count) { |
| 1395 | if (!nowayout) { |
| 1396 | size_t i; |
| 1397 | |
| 1398 | /* Clear it in case it was set with a previous write */ |
| 1399 | data->watchdog_expect_close = 0; |
| 1400 | |
| 1401 | for (i = 0; i != count; i++) { |
| 1402 | char c; |
| 1403 | if (get_user(c, buf + i)) |
| 1404 | return -EFAULT; |
| 1405 | if (c == 'V') |
| 1406 | data->watchdog_expect_close = 1; |
| 1407 | } |
| 1408 | } |
| 1409 | ret = watchdog_trigger(data); |
| 1410 | if (ret < 0) |
| 1411 | return ret; |
| 1412 | } |
| 1413 | return count; |
| 1414 | } |
| 1415 | |
Arnd Bergmann | 5592933 | 2010-04-27 00:24:05 +0200 | [diff] [blame] | 1416 | static long watchdog_ioctl(struct file *filp, unsigned int cmd, |
| 1417 | unsigned long arg) |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1418 | { |
Jean Delvare | 36c7fe1 | 2011-01-12 21:55:11 +0100 | [diff] [blame] | 1419 | struct watchdog_info ident = { |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1420 | .options = WDIOF_KEEPALIVEPING | |
| 1421 | WDIOF_SETTIMEOUT | |
| 1422 | WDIOF_CARDRESET, |
| 1423 | .identity = "w83793 watchdog" |
| 1424 | }; |
| 1425 | |
| 1426 | int val, ret = 0; |
| 1427 | struct w83793_data *data = filp->private_data; |
| 1428 | |
| 1429 | switch (cmd) { |
| 1430 | case WDIOC_GETSUPPORT: |
| 1431 | if (!nowayout) |
| 1432 | ident.options |= WDIOF_MAGICCLOSE; |
| 1433 | if (copy_to_user((void __user *)arg, &ident, sizeof(ident))) |
| 1434 | ret = -EFAULT; |
| 1435 | break; |
| 1436 | |
| 1437 | case WDIOC_GETSTATUS: |
| 1438 | val = data->watchdog_caused_reboot ? WDIOF_CARDRESET : 0; |
| 1439 | ret = put_user(val, (int __user *)arg); |
| 1440 | break; |
| 1441 | |
| 1442 | case WDIOC_GETBOOTSTATUS: |
| 1443 | ret = put_user(0, (int __user *)arg); |
| 1444 | break; |
| 1445 | |
| 1446 | case WDIOC_KEEPALIVE: |
| 1447 | ret = watchdog_trigger(data); |
| 1448 | break; |
| 1449 | |
| 1450 | case WDIOC_GETTIMEOUT: |
| 1451 | val = watchdog_get_timeout(data); |
| 1452 | ret = put_user(val, (int __user *)arg); |
| 1453 | break; |
| 1454 | |
| 1455 | case WDIOC_SETTIMEOUT: |
| 1456 | if (get_user(val, (int __user *)arg)) { |
| 1457 | ret = -EFAULT; |
| 1458 | break; |
| 1459 | } |
| 1460 | ret = watchdog_set_timeout(data, val); |
| 1461 | if (ret > 0) |
| 1462 | ret = put_user(ret, (int __user *)arg); |
| 1463 | break; |
| 1464 | |
| 1465 | case WDIOC_SETOPTIONS: |
| 1466 | if (get_user(val, (int __user *)arg)) { |
| 1467 | ret = -EFAULT; |
| 1468 | break; |
| 1469 | } |
| 1470 | |
| 1471 | if (val & WDIOS_DISABLECARD) |
| 1472 | ret = watchdog_disable(data); |
| 1473 | else if (val & WDIOS_ENABLECARD) |
| 1474 | ret = watchdog_enable(data); |
| 1475 | else |
| 1476 | ret = -EINVAL; |
| 1477 | |
| 1478 | break; |
| 1479 | default: |
| 1480 | ret = -ENOTTY; |
| 1481 | } |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1482 | return ret; |
| 1483 | } |
| 1484 | |
| 1485 | static const struct file_operations watchdog_fops = { |
| 1486 | .owner = THIS_MODULE, |
| 1487 | .llseek = no_llseek, |
| 1488 | .open = watchdog_open, |
| 1489 | .release = watchdog_close, |
| 1490 | .write = watchdog_write, |
Arnd Bergmann | 5592933 | 2010-04-27 00:24:05 +0200 | [diff] [blame] | 1491 | .unlocked_ioctl = watchdog_ioctl, |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1492 | }; |
| 1493 | |
| 1494 | /* |
| 1495 | * Notifier for system down |
| 1496 | */ |
| 1497 | |
| 1498 | static int watchdog_notify_sys(struct notifier_block *this, unsigned long code, |
| 1499 | void *unused) |
| 1500 | { |
| 1501 | struct w83793_data *data = NULL; |
| 1502 | |
| 1503 | if (code == SYS_DOWN || code == SYS_HALT) { |
| 1504 | |
| 1505 | /* Disable each registered watchdog */ |
| 1506 | mutex_lock(&watchdog_data_mutex); |
| 1507 | list_for_each_entry(data, &watchdog_data_list, list) { |
| 1508 | if (data->watchdog_miscdev.minor) |
| 1509 | watchdog_disable(data); |
| 1510 | } |
| 1511 | mutex_unlock(&watchdog_data_mutex); |
| 1512 | } |
| 1513 | |
| 1514 | return NOTIFY_DONE; |
| 1515 | } |
| 1516 | |
| 1517 | /* |
| 1518 | * The WDT needs to learn about soft shutdowns in order to |
| 1519 | * turn the timebomb registers off. |
| 1520 | */ |
| 1521 | |
| 1522 | static struct notifier_block watchdog_notifier = { |
| 1523 | .notifier_call = watchdog_notify_sys, |
| 1524 | }; |
| 1525 | |
| 1526 | /* |
| 1527 | * Init / remove routines |
| 1528 | */ |
| 1529 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1530 | static int w83793_remove(struct i2c_client *client) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1531 | { |
| 1532 | struct w83793_data *data = i2c_get_clientdata(client); |
| 1533 | struct device *dev = &client->dev; |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1534 | int i, tmp; |
| 1535 | |
| 1536 | /* Unregister the watchdog (if registered) */ |
| 1537 | if (data->watchdog_miscdev.minor) { |
| 1538 | misc_deregister(&data->watchdog_miscdev); |
| 1539 | |
| 1540 | if (data->watchdog_is_open) { |
| 1541 | dev_warn(&client->dev, |
| 1542 | "i2c client detached with watchdog open! " |
| 1543 | "Stopping watchdog.\n"); |
| 1544 | watchdog_disable(data); |
| 1545 | } |
| 1546 | |
| 1547 | mutex_lock(&watchdog_data_mutex); |
| 1548 | list_del(&data->list); |
| 1549 | mutex_unlock(&watchdog_data_mutex); |
| 1550 | |
| 1551 | /* Tell the watchdog code the client is gone */ |
| 1552 | mutex_lock(&data->watchdog_lock); |
| 1553 | data->client = NULL; |
| 1554 | mutex_unlock(&data->watchdog_lock); |
| 1555 | } |
| 1556 | |
| 1557 | /* Reset Configuration Register to Disable Watch Dog Registers */ |
| 1558 | tmp = w83793_read_value(client, W83793_REG_CONFIG); |
| 1559 | w83793_write_value(client, W83793_REG_CONFIG, tmp & ~0x04); |
| 1560 | |
| 1561 | unregister_reboot_notifier(&watchdog_notifier); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1562 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1563 | hwmon_device_unregister(data->hwmon_dev); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1564 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1565 | for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) |
| 1566 | device_remove_file(dev, |
| 1567 | &w83793_sensor_attr_2[i].dev_attr); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1568 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1569 | for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) |
| 1570 | device_remove_file(dev, &sda_single_files[i].dev_attr); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1571 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1572 | for (i = 0; i < ARRAY_SIZE(w83793_vid); i++) |
| 1573 | device_remove_file(dev, &w83793_vid[i].dev_attr); |
| 1574 | device_remove_file(dev, &dev_attr_vrm); |
Gong Jun | c70a8c3 | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1575 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1576 | for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++) |
| 1577 | device_remove_file(dev, &w83793_left_fan[i].dev_attr); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1578 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1579 | for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++) |
| 1580 | device_remove_file(dev, &w83793_left_pwm[i].dev_attr); |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1581 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1582 | for (i = 0; i < ARRAY_SIZE(w83793_temp); i++) |
| 1583 | device_remove_file(dev, &w83793_temp[i].dev_attr); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1584 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1585 | if (data->lm75[0] != NULL) |
| 1586 | i2c_unregister_device(data->lm75[0]); |
| 1587 | if (data->lm75[1] != NULL) |
| 1588 | i2c_unregister_device(data->lm75[1]); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1589 | |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1590 | /* Decrease data reference counter */ |
| 1591 | mutex_lock(&watchdog_data_mutex); |
| 1592 | kref_put(&data->kref, w83793_release_resources); |
| 1593 | mutex_unlock(&watchdog_data_mutex); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1594 | |
| 1595 | return 0; |
| 1596 | } |
| 1597 | |
| 1598 | static int |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1599 | w83793_detect_subclients(struct i2c_client *client) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1600 | { |
| 1601 | int i, id, err; |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1602 | int address = client->addr; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1603 | u8 tmp; |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1604 | struct i2c_adapter *adapter = client->adapter; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1605 | struct w83793_data *data = i2c_get_clientdata(client); |
| 1606 | |
| 1607 | id = i2c_adapter_id(adapter); |
| 1608 | if (force_subclients[0] == id && force_subclients[1] == address) { |
| 1609 | for (i = 2; i <= 3; i++) { |
| 1610 | if (force_subclients[i] < 0x48 |
| 1611 | || force_subclients[i] > 0x4f) { |
| 1612 | dev_err(&client->dev, |
| 1613 | "invalid subclient " |
| 1614 | "address %d; must be 0x48-0x4f\n", |
| 1615 | force_subclients[i]); |
| 1616 | err = -EINVAL; |
| 1617 | goto ERROR_SC_0; |
| 1618 | } |
| 1619 | } |
| 1620 | w83793_write_value(client, W83793_REG_I2C_SUBADDR, |
| 1621 | (force_subclients[2] & 0x07) | |
| 1622 | ((force_subclients[3] & 0x07) << 4)); |
| 1623 | } |
| 1624 | |
| 1625 | tmp = w83793_read_value(client, W83793_REG_I2C_SUBADDR); |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1626 | if (!(tmp & 0x08)) |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1627 | data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (tmp & 0x7)); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1628 | if (!(tmp & 0x80)) { |
| 1629 | if ((data->lm75[0] != NULL) |
| 1630 | && ((tmp & 0x7) == ((tmp >> 4) & 0x7))) { |
| 1631 | dev_err(&client->dev, |
| 1632 | "duplicate addresses 0x%x, " |
| 1633 | "use force_subclients\n", data->lm75[0]->addr); |
| 1634 | err = -ENODEV; |
| 1635 | goto ERROR_SC_1; |
| 1636 | } |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1637 | data->lm75[1] = i2c_new_dummy(adapter, |
| 1638 | 0x48 + ((tmp >> 4) & 0x7)); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1639 | } |
| 1640 | |
| 1641 | return 0; |
| 1642 | |
| 1643 | /* Undo inits in case of errors */ |
| 1644 | |
| 1645 | ERROR_SC_1: |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1646 | if (data->lm75[0] != NULL) |
| 1647 | i2c_unregister_device(data->lm75[0]); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1648 | ERROR_SC_0: |
| 1649 | return err; |
| 1650 | } |
| 1651 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1652 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
Jean Delvare | 310ec79 | 2009-12-14 21:17:23 +0100 | [diff] [blame] | 1653 | static int w83793_detect(struct i2c_client *client, |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1654 | struct i2c_board_info *info) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1655 | { |
Jean Delvare | 52df644 | 2009-12-09 20:35:57 +0100 | [diff] [blame] | 1656 | u8 tmp, bank, chip_id; |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1657 | struct i2c_adapter *adapter = client->adapter; |
| 1658 | unsigned short address = client->addr; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1659 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1660 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1661 | return -ENODEV; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1662 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1663 | bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1664 | |
Jean Delvare | 52df644 | 2009-12-09 20:35:57 +0100 | [diff] [blame] | 1665 | tmp = bank & 0x80 ? 0x5c : 0xa3; |
| 1666 | /* Check Winbond vendor ID */ |
| 1667 | if (tmp != i2c_smbus_read_byte_data(client, W83793_REG_VENDORID)) { |
| 1668 | pr_debug("w83793: Detection failed at check vendor id\n"); |
| 1669 | return -ENODEV; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1670 | } |
| 1671 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1672 | /* |
| 1673 | * If Winbond chip, address of chip and W83793_REG_I2C_ADDR |
| 1674 | * should match |
| 1675 | */ |
Jean Delvare | 52df644 | 2009-12-09 20:35:57 +0100 | [diff] [blame] | 1676 | if ((bank & 0x07) == 0 |
| 1677 | && i2c_smbus_read_byte_data(client, W83793_REG_I2C_ADDR) != |
| 1678 | (address << 1)) { |
| 1679 | pr_debug("w83793: Detection failed at check i2c addr\n"); |
| 1680 | return -ENODEV; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1681 | } |
| 1682 | |
Jean Delvare | 52df644 | 2009-12-09 20:35:57 +0100 | [diff] [blame] | 1683 | /* Determine the chip type now */ |
| 1684 | chip_id = i2c_smbus_read_byte_data(client, W83793_REG_CHIPID); |
| 1685 | if (chip_id != 0x7b) |
| 1686 | return -ENODEV; |
| 1687 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1688 | strlcpy(info->type, "w83793", I2C_NAME_SIZE); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1689 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1690 | return 0; |
| 1691 | } |
| 1692 | |
| 1693 | static int w83793_probe(struct i2c_client *client, |
| 1694 | const struct i2c_device_id *id) |
| 1695 | { |
| 1696 | struct device *dev = &client->dev; |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1697 | const int watchdog_minors[] = { WATCHDOG_MINOR, 212, 213, 214, 215 }; |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1698 | struct w83793_data *data; |
| 1699 | int i, tmp, val, err; |
| 1700 | int files_fan = ARRAY_SIZE(w83793_left_fan) / 7; |
| 1701 | int files_pwm = ARRAY_SIZE(w83793_left_pwm) / 5; |
| 1702 | int files_temp = ARRAY_SIZE(w83793_temp) / 6; |
| 1703 | |
| 1704 | data = kzalloc(sizeof(struct w83793_data), GFP_KERNEL); |
| 1705 | if (!data) { |
| 1706 | err = -ENOMEM; |
| 1707 | goto exit; |
| 1708 | } |
| 1709 | |
| 1710 | i2c_set_clientdata(client, data); |
| 1711 | data->bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1712 | mutex_init(&data->update_lock); |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1713 | mutex_init(&data->watchdog_lock); |
| 1714 | INIT_LIST_HEAD(&data->list); |
| 1715 | kref_init(&data->kref); |
| 1716 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1717 | /* |
| 1718 | * Store client pointer in our data struct for watchdog usage |
| 1719 | * (where the client is found through a data ptr instead of the |
| 1720 | * otherway around) |
| 1721 | */ |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1722 | data->client = client; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1723 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1724 | err = w83793_detect_subclients(client); |
| 1725 | if (err) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1726 | goto free_mem; |
| 1727 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1728 | /* Initialize the chip */ |
| 1729 | w83793_init_client(client); |
| 1730 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1731 | /* |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1732 | * Only fan 1-5 has their own input pins, |
| 1733 | * Pwm 1-3 has their own pins |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1734 | */ |
| 1735 | data->has_fan = 0x1f; |
| 1736 | data->has_pwm = 0x07; |
| 1737 | tmp = w83793_read_value(client, W83793_REG_MFC); |
| 1738 | val = w83793_read_value(client, W83793_REG_FANIN_CTRL); |
| 1739 | |
| 1740 | /* check the function of pins 49-56 */ |
Jean Delvare | 93c75a4 | 2008-02-12 11:25:07 +0100 | [diff] [blame] | 1741 | if (tmp & 0x80) { |
| 1742 | data->has_vid |= 0x2; /* has VIDB */ |
| 1743 | } else { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1744 | data->has_pwm |= 0x18; /* pwm 4,5 */ |
| 1745 | if (val & 0x01) { /* fan 6 */ |
| 1746 | data->has_fan |= 0x20; |
| 1747 | data->has_pwm |= 0x20; |
| 1748 | } |
| 1749 | if (val & 0x02) { /* fan 7 */ |
| 1750 | data->has_fan |= 0x40; |
| 1751 | data->has_pwm |= 0x40; |
| 1752 | } |
| 1753 | if (!(tmp & 0x40) && (val & 0x04)) { /* fan 8 */ |
| 1754 | data->has_fan |= 0x80; |
| 1755 | data->has_pwm |= 0x80; |
| 1756 | } |
| 1757 | } |
| 1758 | |
Jean Delvare | 93c75a4 | 2008-02-12 11:25:07 +0100 | [diff] [blame] | 1759 | /* check the function of pins 37-40 */ |
| 1760 | if (!(tmp & 0x29)) |
| 1761 | data->has_vid |= 0x1; /* has VIDA */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1762 | if (0x08 == (tmp & 0x0c)) { |
| 1763 | if (val & 0x08) /* fan 9 */ |
| 1764 | data->has_fan |= 0x100; |
| 1765 | if (val & 0x10) /* fan 10 */ |
| 1766 | data->has_fan |= 0x200; |
| 1767 | } |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1768 | if (0x20 == (tmp & 0x30)) { |
| 1769 | if (val & 0x20) /* fan 11 */ |
| 1770 | data->has_fan |= 0x400; |
| 1771 | if (val & 0x40) /* fan 12 */ |
| 1772 | data->has_fan |= 0x800; |
| 1773 | } |
| 1774 | |
| 1775 | if ((tmp & 0x01) && (val & 0x04)) { /* fan 8, second location */ |
| 1776 | data->has_fan |= 0x80; |
| 1777 | data->has_pwm |= 0x80; |
| 1778 | } |
| 1779 | |
Rudolf Marek | c929431 | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1780 | tmp = w83793_read_value(client, W83793_REG_FANIN_SEL); |
| 1781 | if ((tmp & 0x01) && (val & 0x08)) { /* fan 9, second location */ |
| 1782 | data->has_fan |= 0x100; |
| 1783 | } |
| 1784 | if ((tmp & 0x02) && (val & 0x10)) { /* fan 10, second location */ |
| 1785 | data->has_fan |= 0x200; |
| 1786 | } |
| 1787 | if ((tmp & 0x04) && (val & 0x20)) { /* fan 11, second location */ |
| 1788 | data->has_fan |= 0x400; |
| 1789 | } |
| 1790 | if ((tmp & 0x08) && (val & 0x40)) { /* fan 12, second location */ |
| 1791 | data->has_fan |= 0x800; |
| 1792 | } |
| 1793 | |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1794 | /* check the temp1-6 mode, ignore former AMDSI selected inputs */ |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1795 | tmp = w83793_read_value(client, W83793_REG_TEMP_MODE[0]); |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1796 | if (tmp & 0x01) |
| 1797 | data->has_temp |= 0x01; |
| 1798 | if (tmp & 0x04) |
| 1799 | data->has_temp |= 0x02; |
| 1800 | if (tmp & 0x10) |
| 1801 | data->has_temp |= 0x04; |
| 1802 | if (tmp & 0x40) |
| 1803 | data->has_temp |= 0x08; |
| 1804 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1805 | tmp = w83793_read_value(client, W83793_REG_TEMP_MODE[1]); |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1806 | if (tmp & 0x01) |
| 1807 | data->has_temp |= 0x10; |
| 1808 | if (tmp & 0x02) |
| 1809 | data->has_temp |= 0x20; |
| 1810 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1811 | /* Register sysfs hooks */ |
| 1812 | for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) { |
| 1813 | err = device_create_file(dev, |
| 1814 | &w83793_sensor_attr_2[i].dev_attr); |
| 1815 | if (err) |
| 1816 | goto exit_remove; |
| 1817 | } |
| 1818 | |
Gong Jun | c70a8c3 | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1819 | for (i = 0; i < ARRAY_SIZE(w83793_vid); i++) { |
| 1820 | if (!(data->has_vid & (1 << i))) |
| 1821 | continue; |
| 1822 | err = device_create_file(dev, &w83793_vid[i].dev_attr); |
| 1823 | if (err) |
| 1824 | goto exit_remove; |
| 1825 | } |
Jean Delvare | 93c75a4 | 2008-02-12 11:25:07 +0100 | [diff] [blame] | 1826 | if (data->has_vid) { |
| 1827 | data->vrm = vid_which_vrm(); |
| 1828 | err = device_create_file(dev, &dev_attr_vrm); |
| 1829 | if (err) |
| 1830 | goto exit_remove; |
| 1831 | } |
Gong Jun | c70a8c3 | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1832 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1833 | for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) { |
| 1834 | err = device_create_file(dev, &sda_single_files[i].dev_attr); |
| 1835 | if (err) |
| 1836 | goto exit_remove; |
| 1837 | |
| 1838 | } |
| 1839 | |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1840 | for (i = 0; i < 6; i++) { |
| 1841 | int j; |
| 1842 | if (!(data->has_temp & (1 << i))) |
| 1843 | continue; |
| 1844 | for (j = 0; j < files_temp; j++) { |
| 1845 | err = device_create_file(dev, |
| 1846 | &w83793_temp[(i) * files_temp |
| 1847 | + j].dev_attr); |
| 1848 | if (err) |
| 1849 | goto exit_remove; |
| 1850 | } |
| 1851 | } |
| 1852 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1853 | for (i = 5; i < 12; i++) { |
| 1854 | int j; |
| 1855 | if (!(data->has_fan & (1 << i))) |
| 1856 | continue; |
| 1857 | for (j = 0; j < files_fan; j++) { |
| 1858 | err = device_create_file(dev, |
| 1859 | &w83793_left_fan[(i - 5) * files_fan |
| 1860 | + j].dev_attr); |
| 1861 | if (err) |
| 1862 | goto exit_remove; |
| 1863 | } |
| 1864 | } |
| 1865 | |
| 1866 | for (i = 3; i < 8; i++) { |
| 1867 | int j; |
| 1868 | if (!(data->has_pwm & (1 << i))) |
| 1869 | continue; |
| 1870 | for (j = 0; j < files_pwm; j++) { |
| 1871 | err = device_create_file(dev, |
| 1872 | &w83793_left_pwm[(i - 3) * files_pwm |
| 1873 | + j].dev_attr); |
| 1874 | if (err) |
| 1875 | goto exit_remove; |
| 1876 | } |
| 1877 | } |
| 1878 | |
Tony Jones | 1beeffe | 2007-08-20 13:46:20 -0700 | [diff] [blame] | 1879 | data->hwmon_dev = hwmon_device_register(dev); |
| 1880 | if (IS_ERR(data->hwmon_dev)) { |
| 1881 | err = PTR_ERR(data->hwmon_dev); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1882 | goto exit_remove; |
| 1883 | } |
| 1884 | |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1885 | /* Watchdog initialization */ |
| 1886 | |
| 1887 | /* Register boot notifier */ |
| 1888 | err = register_reboot_notifier(&watchdog_notifier); |
| 1889 | if (err != 0) { |
| 1890 | dev_err(&client->dev, |
| 1891 | "cannot register reboot notifier (err=%d)\n", err); |
| 1892 | goto exit_devunreg; |
| 1893 | } |
| 1894 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1895 | /* |
| 1896 | * Enable Watchdog registers. |
| 1897 | * Set Configuration Register to Enable Watch Dog Registers |
| 1898 | * (Bit 2) = XXXX, X1XX. |
| 1899 | */ |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1900 | tmp = w83793_read_value(client, W83793_REG_CONFIG); |
| 1901 | w83793_write_value(client, W83793_REG_CONFIG, tmp | 0x04); |
| 1902 | |
| 1903 | /* Set the default watchdog timeout */ |
| 1904 | data->watchdog_timeout = timeout; |
| 1905 | |
| 1906 | /* Check, if last reboot was caused by watchdog */ |
| 1907 | data->watchdog_caused_reboot = |
| 1908 | w83793_read_value(data->client, W83793_REG_WDT_STATUS) & 0x01; |
| 1909 | |
| 1910 | /* Disable Soft Watchdog during initialiation */ |
| 1911 | watchdog_disable(data); |
| 1912 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1913 | /* |
| 1914 | * We take the data_mutex lock early so that watchdog_open() cannot |
| 1915 | * run when misc_register() has completed, but we've not yet added |
| 1916 | * our data to the watchdog_data_list (and set the default timeout) |
| 1917 | */ |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1918 | mutex_lock(&watchdog_data_mutex); |
| 1919 | for (i = 0; i < ARRAY_SIZE(watchdog_minors); i++) { |
| 1920 | /* Register our watchdog part */ |
| 1921 | snprintf(data->watchdog_name, sizeof(data->watchdog_name), |
| 1922 | "watchdog%c", (i == 0) ? '\0' : ('0' + i)); |
| 1923 | data->watchdog_miscdev.name = data->watchdog_name; |
| 1924 | data->watchdog_miscdev.fops = &watchdog_fops; |
| 1925 | data->watchdog_miscdev.minor = watchdog_minors[i]; |
| 1926 | |
| 1927 | err = misc_register(&data->watchdog_miscdev); |
| 1928 | if (err == -EBUSY) |
| 1929 | continue; |
| 1930 | if (err) { |
| 1931 | data->watchdog_miscdev.minor = 0; |
| 1932 | dev_err(&client->dev, |
| 1933 | "Registering watchdog chardev: %d\n", err); |
| 1934 | break; |
| 1935 | } |
| 1936 | |
| 1937 | list_add(&data->list, &watchdog_data_list); |
| 1938 | |
| 1939 | dev_info(&client->dev, |
| 1940 | "Registered watchdog chardev major 10, minor: %d\n", |
| 1941 | watchdog_minors[i]); |
| 1942 | break; |
| 1943 | } |
| 1944 | if (i == ARRAY_SIZE(watchdog_minors)) { |
| 1945 | data->watchdog_miscdev.minor = 0; |
| 1946 | dev_warn(&client->dev, "Couldn't register watchdog chardev " |
| 1947 | "(due to no free minor)\n"); |
| 1948 | } |
| 1949 | |
| 1950 | mutex_unlock(&watchdog_data_mutex); |
| 1951 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1952 | return 0; |
| 1953 | |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 1954 | /* Unregister hwmon device */ |
| 1955 | |
| 1956 | exit_devunreg: |
| 1957 | |
| 1958 | hwmon_device_unregister(data->hwmon_dev); |
| 1959 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1960 | /* Unregister sysfs hooks */ |
| 1961 | |
| 1962 | exit_remove: |
| 1963 | for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) |
| 1964 | device_remove_file(dev, &w83793_sensor_attr_2[i].dev_attr); |
| 1965 | |
| 1966 | for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) |
| 1967 | device_remove_file(dev, &sda_single_files[i].dev_attr); |
| 1968 | |
Gong Jun | c70a8c3 | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1969 | for (i = 0; i < ARRAY_SIZE(w83793_vid); i++) |
| 1970 | device_remove_file(dev, &w83793_vid[i].dev_attr); |
| 1971 | |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1972 | for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++) |
| 1973 | device_remove_file(dev, &w83793_left_fan[i].dev_attr); |
| 1974 | |
| 1975 | for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++) |
| 1976 | device_remove_file(dev, &w83793_left_pwm[i].dev_attr); |
| 1977 | |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 1978 | for (i = 0; i < ARRAY_SIZE(w83793_temp); i++) |
| 1979 | device_remove_file(dev, &w83793_temp[i].dev_attr); |
| 1980 | |
Jean Delvare | a7f13a6 | 2008-07-16 19:30:17 +0200 | [diff] [blame] | 1981 | if (data->lm75[0] != NULL) |
| 1982 | i2c_unregister_device(data->lm75[0]); |
| 1983 | if (data->lm75[1] != NULL) |
| 1984 | i2c_unregister_device(data->lm75[1]); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1985 | free_mem: |
| 1986 | kfree(data); |
| 1987 | exit: |
| 1988 | return err; |
| 1989 | } |
| 1990 | |
| 1991 | static void w83793_update_nonvolatile(struct device *dev) |
| 1992 | { |
| 1993 | struct i2c_client *client = to_i2c_client(dev); |
| 1994 | struct w83793_data *data = i2c_get_clientdata(client); |
| 1995 | int i, j; |
| 1996 | /* |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 1997 | * They are somewhat "stable" registers, and to update them every time |
| 1998 | * takes so much time, it's just not worthy. Update them in a long |
| 1999 | * interval to avoid exception. |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2000 | */ |
| 2001 | if (!(time_after(jiffies, data->last_nonvolatile + HZ * 300) |
| 2002 | || !data->valid)) |
| 2003 | return; |
| 2004 | /* update voltage limits */ |
| 2005 | for (i = 1; i < 3; i++) { |
| 2006 | for (j = 0; j < ARRAY_SIZE(data->in); j++) { |
| 2007 | data->in[j][i] = |
| 2008 | w83793_read_value(client, W83793_REG_IN[j][i]); |
| 2009 | } |
| 2010 | data->in_low_bits[i] = |
| 2011 | w83793_read_value(client, W83793_REG_IN_LOW_BITS[i]); |
| 2012 | } |
| 2013 | |
| 2014 | for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) { |
| 2015 | /* Update the Fan measured value and limits */ |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 2016 | if (!(data->has_fan & (1 << i))) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2017 | continue; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2018 | data->fan_min[i] = |
| 2019 | w83793_read_value(client, W83793_REG_FAN_MIN(i)) << 8; |
| 2020 | data->fan_min[i] |= |
| 2021 | w83793_read_value(client, W83793_REG_FAN_MIN(i) + 1); |
| 2022 | } |
| 2023 | |
| 2024 | for (i = 0; i < ARRAY_SIZE(data->temp_fan_map); i++) { |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 2025 | if (!(data->has_temp & (1 << i))) |
| 2026 | continue; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2027 | data->temp_fan_map[i] = |
| 2028 | w83793_read_value(client, W83793_REG_TEMP_FAN_MAP(i)); |
| 2029 | for (j = 1; j < 5; j++) { |
| 2030 | data->temp[i][j] = |
| 2031 | w83793_read_value(client, W83793_REG_TEMP[i][j]); |
| 2032 | } |
| 2033 | data->temp_cruise[i] = |
| 2034 | w83793_read_value(client, W83793_REG_TEMP_CRUISE(i)); |
| 2035 | for (j = 0; j < 7; j++) { |
| 2036 | data->sf2_pwm[i][j] = |
| 2037 | w83793_read_value(client, W83793_REG_SF2_PWM(i, j)); |
| 2038 | data->sf2_temp[i][j] = |
| 2039 | w83793_read_value(client, |
| 2040 | W83793_REG_SF2_TEMP(i, j)); |
| 2041 | } |
| 2042 | } |
| 2043 | |
| 2044 | for (i = 0; i < ARRAY_SIZE(data->temp_mode); i++) |
| 2045 | data->temp_mode[i] = |
| 2046 | w83793_read_value(client, W83793_REG_TEMP_MODE[i]); |
| 2047 | |
| 2048 | for (i = 0; i < ARRAY_SIZE(data->tolerance); i++) { |
| 2049 | data->tolerance[i] = |
| 2050 | w83793_read_value(client, W83793_REG_TEMP_TOL(i)); |
| 2051 | } |
| 2052 | |
| 2053 | for (i = 0; i < ARRAY_SIZE(data->pwm); i++) { |
| 2054 | if (!(data->has_pwm & (1 << i))) |
| 2055 | continue; |
| 2056 | data->pwm[i][PWM_NONSTOP] = |
| 2057 | w83793_read_value(client, W83793_REG_PWM(i, PWM_NONSTOP)); |
| 2058 | data->pwm[i][PWM_START] = |
| 2059 | w83793_read_value(client, W83793_REG_PWM(i, PWM_START)); |
| 2060 | data->pwm_stop_time[i] = |
| 2061 | w83793_read_value(client, W83793_REG_PWM_STOP_TIME(i)); |
| 2062 | } |
| 2063 | |
| 2064 | data->pwm_default = w83793_read_value(client, W83793_REG_PWM_DEFAULT); |
| 2065 | data->pwm_enable = w83793_read_value(client, W83793_REG_PWM_ENABLE); |
| 2066 | data->pwm_uptime = w83793_read_value(client, W83793_REG_PWM_UPTIME); |
| 2067 | data->pwm_downtime = w83793_read_value(client, W83793_REG_PWM_DOWNTIME); |
| 2068 | data->temp_critical = |
| 2069 | w83793_read_value(client, W83793_REG_TEMP_CRITICAL); |
| 2070 | data->beep_enable = w83793_read_value(client, W83793_REG_OVT_BEEP); |
| 2071 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 2072 | for (i = 0; i < ARRAY_SIZE(data->beeps); i++) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2073 | data->beeps[i] = w83793_read_value(client, W83793_REG_BEEP(i)); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2074 | |
| 2075 | data->last_nonvolatile = jiffies; |
| 2076 | } |
| 2077 | |
| 2078 | static struct w83793_data *w83793_update_device(struct device *dev) |
| 2079 | { |
| 2080 | struct i2c_client *client = to_i2c_client(dev); |
| 2081 | struct w83793_data *data = i2c_get_clientdata(client); |
| 2082 | int i; |
| 2083 | |
| 2084 | mutex_lock(&data->update_lock); |
| 2085 | |
| 2086 | if (!(time_after(jiffies, data->last_updated + HZ * 2) |
| 2087 | || !data->valid)) |
| 2088 | goto END; |
| 2089 | |
| 2090 | /* Update the voltages measured value and limits */ |
| 2091 | for (i = 0; i < ARRAY_SIZE(data->in); i++) |
| 2092 | data->in[i][IN_READ] = |
| 2093 | w83793_read_value(client, W83793_REG_IN[i][IN_READ]); |
| 2094 | |
| 2095 | data->in_low_bits[IN_READ] = |
| 2096 | w83793_read_value(client, W83793_REG_IN_LOW_BITS[IN_READ]); |
| 2097 | |
| 2098 | for (i = 0; i < ARRAY_SIZE(data->fan); i++) { |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 2099 | if (!(data->has_fan & (1 << i))) |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2100 | continue; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2101 | data->fan[i] = |
| 2102 | w83793_read_value(client, W83793_REG_FAN(i)) << 8; |
| 2103 | data->fan[i] |= |
| 2104 | w83793_read_value(client, W83793_REG_FAN(i) + 1); |
| 2105 | } |
| 2106 | |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 2107 | for (i = 0; i < ARRAY_SIZE(data->temp); i++) { |
| 2108 | if (!(data->has_temp & (1 << i))) |
| 2109 | continue; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2110 | data->temp[i][TEMP_READ] = |
| 2111 | w83793_read_value(client, W83793_REG_TEMP[i][TEMP_READ]); |
Gong Jun | 46bed4d | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 2112 | } |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2113 | |
| 2114 | data->temp_low_bits = |
| 2115 | w83793_read_value(client, W83793_REG_TEMP_LOW_BITS); |
| 2116 | |
| 2117 | for (i = 0; i < ARRAY_SIZE(data->pwm); i++) { |
| 2118 | if (data->has_pwm & (1 << i)) |
| 2119 | data->pwm[i][PWM_DUTY] = |
| 2120 | w83793_read_value(client, |
| 2121 | W83793_REG_PWM(i, PWM_DUTY)); |
| 2122 | } |
| 2123 | |
| 2124 | for (i = 0; i < ARRAY_SIZE(data->alarms); i++) |
| 2125 | data->alarms[i] = |
| 2126 | w83793_read_value(client, W83793_REG_ALARM(i)); |
Gong Jun | c70a8c3 | 2007-01-18 22:14:24 +0100 | [diff] [blame] | 2127 | if (data->has_vid & 0x01) |
| 2128 | data->vid[0] = w83793_read_value(client, W83793_REG_VID_INA); |
| 2129 | if (data->has_vid & 0x02) |
| 2130 | data->vid[1] = w83793_read_value(client, W83793_REG_VID_INB); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2131 | w83793_update_nonvolatile(dev); |
| 2132 | data->last_updated = jiffies; |
| 2133 | data->valid = 1; |
| 2134 | |
| 2135 | END: |
| 2136 | mutex_unlock(&data->update_lock); |
| 2137 | return data; |
| 2138 | } |
| 2139 | |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 2140 | /* |
| 2141 | * Ignore the possibility that somebody change bank outside the driver |
| 2142 | * Must be called with data->update_lock held, except during initialization |
| 2143 | */ |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2144 | static u8 w83793_read_value(struct i2c_client *client, u16 reg) |
| 2145 | { |
| 2146 | struct w83793_data *data = i2c_get_clientdata(client); |
| 2147 | u8 res = 0xff; |
| 2148 | u8 new_bank = reg >> 8; |
| 2149 | |
| 2150 | new_bank |= data->bank & 0xfc; |
| 2151 | if (data->bank != new_bank) { |
| 2152 | if (i2c_smbus_write_byte_data |
| 2153 | (client, W83793_REG_BANKSEL, new_bank) >= 0) |
| 2154 | data->bank = new_bank; |
| 2155 | else { |
| 2156 | dev_err(&client->dev, |
| 2157 | "set bank to %d failed, fall back " |
| 2158 | "to bank %d, read reg 0x%x error\n", |
| 2159 | new_bank, data->bank, reg); |
| 2160 | res = 0x0; /* read 0x0 from the chip */ |
| 2161 | goto END; |
| 2162 | } |
| 2163 | } |
| 2164 | res = i2c_smbus_read_byte_data(client, reg & 0xff); |
| 2165 | END: |
| 2166 | return res; |
| 2167 | } |
| 2168 | |
| 2169 | /* Must be called with data->update_lock held, except during initialization */ |
| 2170 | static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value) |
| 2171 | { |
| 2172 | struct w83793_data *data = i2c_get_clientdata(client); |
| 2173 | int res; |
| 2174 | u8 new_bank = reg >> 8; |
| 2175 | |
| 2176 | new_bank |= data->bank & 0xfc; |
| 2177 | if (data->bank != new_bank) { |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 2178 | res = i2c_smbus_write_byte_data(client, W83793_REG_BANKSEL, |
| 2179 | new_bank); |
| 2180 | if (res < 0) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2181 | dev_err(&client->dev, |
| 2182 | "set bank to %d failed, fall back " |
| 2183 | "to bank %d, write reg 0x%x error\n", |
| 2184 | new_bank, data->bank, reg); |
| 2185 | goto END; |
| 2186 | } |
Guenter Roeck | 47efe87 | 2012-01-15 10:48:48 -0800 | [diff] [blame] | 2187 | data->bank = new_bank; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2188 | } |
| 2189 | |
| 2190 | res = i2c_smbus_write_byte_data(client, reg & 0xff, value); |
| 2191 | END: |
| 2192 | return res; |
| 2193 | } |
| 2194 | |
Axel Lin | f0967ee | 2012-01-20 15:38:18 +0800 | [diff] [blame] | 2195 | module_i2c_driver(w83793_driver); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2196 | |
Sven Anders | 5852f96 | 2010-03-05 22:17:22 +0100 | [diff] [blame] | 2197 | MODULE_AUTHOR("Yuan Mu, Sven Anders"); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 2198 | MODULE_DESCRIPTION("w83793 driver"); |
| 2199 | MODULE_LICENSE("GPL"); |