Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | it87.c - Part of lm_sensors, Linux kernel modules for hardware |
| 3 | monitoring. |
| 4 | |
Bjorn Helgaas | 87b4b66 | 2008-01-22 07:21:03 -0500 | [diff] [blame] | 5 | The IT8705F is an LPC-based Super I/O part that contains UARTs, a |
| 6 | parallel port, an IR port, a MIDI port, a floppy controller, etc., in |
| 7 | addition to an Environment Controller (Enhanced Hardware Monitor and |
| 8 | Fan Controller) |
| 9 | |
| 10 | This driver supports only the Environment Controller in the IT8705F and |
| 11 | similar parts. The other devices are supported by different drivers. |
| 12 | |
Jean Delvare | 9174999 | 2005-10-08 00:10:00 +0200 | [diff] [blame] | 13 | Supports: IT8705F Super I/O chip w/LPC interface |
Jean Delvare | 8e9afcb | 2006-12-12 18:18:28 +0100 | [diff] [blame] | 14 | IT8712F Super I/O chip w/LPC interface |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 15 | IT8716F Super I/O chip w/LPC interface |
Jean Delvare | 87673dd | 2006-08-28 14:37:19 +0200 | [diff] [blame] | 16 | IT8718F Super I/O chip w/LPC interface |
Jean-Marc Spaggiari | b4da93e | 2009-01-07 16:37:32 +0100 | [diff] [blame] | 17 | IT8720F Super I/O chip w/LPC interface |
Rudolf Marek | 08a8f6e | 2007-06-09 10:11:16 -0400 | [diff] [blame] | 18 | IT8726F Super I/O chip w/LPC interface |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | Sis950 A clone of the IT8705F |
| 20 | |
Jean Delvare | f1d8e33 | 2007-11-25 16:14:44 +0100 | [diff] [blame] | 21 | Copyright (C) 2001 Chris Gauthron |
Jean Delvare | 0124dd7 | 2007-11-25 16:16:41 +0100 | [diff] [blame] | 22 | Copyright (C) 2005-2007 Jean Delvare <khali@linux-fr.org> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | |
| 24 | This program is free software; you can redistribute it and/or modify |
| 25 | it under the terms of the GNU General Public License as published by |
| 26 | the Free Software Foundation; either version 2 of the License, or |
| 27 | (at your option) any later version. |
| 28 | |
| 29 | This program is distributed in the hope that it will be useful, |
| 30 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 31 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 32 | GNU General Public License for more details. |
| 33 | |
| 34 | You should have received a copy of the GNU General Public License |
| 35 | along with this program; if not, write to the Free Software |
| 36 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 37 | */ |
| 38 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | #include <linux/module.h> |
| 40 | #include <linux/init.h> |
| 41 | #include <linux/slab.h> |
| 42 | #include <linux/jiffies.h> |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 43 | #include <linux/platform_device.h> |
Mark M. Hoffman | 943b083 | 2005-07-15 21:39:18 -0400 | [diff] [blame] | 44 | #include <linux/hwmon.h> |
Jean Delvare | 303760b | 2005-07-31 21:52:01 +0200 | [diff] [blame] | 45 | #include <linux/hwmon-sysfs.h> |
| 46 | #include <linux/hwmon-vid.h> |
Mark M. Hoffman | 943b083 | 2005-07-15 21:39:18 -0400 | [diff] [blame] | 47 | #include <linux/err.h> |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 48 | #include <linux/mutex.h> |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 49 | #include <linux/sysfs.h> |
Jean Delvare | 98dd22c | 2008-10-09 15:33:58 +0200 | [diff] [blame] | 50 | #include <linux/string.h> |
| 51 | #include <linux/dmi.h> |
Jean Delvare | b9acb64 | 2009-01-07 16:37:35 +0100 | [diff] [blame] | 52 | #include <linux/acpi.h> |
H Hartley Sweeten | 6055fae | 2009-09-15 17:18:13 +0200 | [diff] [blame] | 53 | #include <linux/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 55 | #define DRVNAME "it87" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | |
Jean-Marc Spaggiari | b4da93e | 2009-01-07 16:37:32 +0100 | [diff] [blame] | 57 | enum chips { it87, it8712, it8716, it8718, it8720 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | |
Jean Delvare | 67b671b | 2007-12-06 23:13:42 +0100 | [diff] [blame] | 59 | static unsigned short force_id; |
| 60 | module_param(force_id, ushort, 0); |
| 61 | MODULE_PARM_DESC(force_id, "Override the detected device ID"); |
| 62 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 63 | static struct platform_device *pdev; |
| 64 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | #define REG 0x2e /* The register to read/write */ |
| 66 | #define DEV 0x07 /* Register: Logical device select */ |
| 67 | #define VAL 0x2f /* The value to read/write */ |
| 68 | #define PME 0x04 /* The device with the fan registers in it */ |
Jean-Marc Spaggiari | b4da93e | 2009-01-07 16:37:32 +0100 | [diff] [blame] | 69 | |
| 70 | /* The device with the IT8718F/IT8720F VID value in it */ |
| 71 | #define GPIO 0x07 |
| 72 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | #define DEVID 0x20 /* Register: Device ID */ |
| 74 | #define DEVREV 0x22 /* Register: Device Revision */ |
| 75 | |
| 76 | static inline int |
| 77 | superio_inb(int reg) |
| 78 | { |
| 79 | outb(reg, REG); |
| 80 | return inb(VAL); |
| 81 | } |
| 82 | |
| 83 | static int superio_inw(int reg) |
| 84 | { |
| 85 | int val; |
| 86 | outb(reg++, REG); |
| 87 | val = inb(VAL) << 8; |
| 88 | outb(reg, REG); |
| 89 | val |= inb(VAL); |
| 90 | return val; |
| 91 | } |
| 92 | |
| 93 | static inline void |
Jean Delvare | 87673dd | 2006-08-28 14:37:19 +0200 | [diff] [blame] | 94 | superio_select(int ldn) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | { |
| 96 | outb(DEV, REG); |
Jean Delvare | 87673dd | 2006-08-28 14:37:19 +0200 | [diff] [blame] | 97 | outb(ldn, VAL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | } |
| 99 | |
| 100 | static inline void |
| 101 | superio_enter(void) |
| 102 | { |
| 103 | outb(0x87, REG); |
| 104 | outb(0x01, REG); |
| 105 | outb(0x55, REG); |
| 106 | outb(0x55, REG); |
| 107 | } |
| 108 | |
| 109 | static inline void |
| 110 | superio_exit(void) |
| 111 | { |
| 112 | outb(0x02, REG); |
| 113 | outb(0x02, VAL); |
| 114 | } |
| 115 | |
Jean Delvare | 87673dd | 2006-08-28 14:37:19 +0200 | [diff] [blame] | 116 | /* Logical device 4 registers */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | #define IT8712F_DEVID 0x8712 |
| 118 | #define IT8705F_DEVID 0x8705 |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 119 | #define IT8716F_DEVID 0x8716 |
Jean Delvare | 87673dd | 2006-08-28 14:37:19 +0200 | [diff] [blame] | 120 | #define IT8718F_DEVID 0x8718 |
Jean-Marc Spaggiari | b4da93e | 2009-01-07 16:37:32 +0100 | [diff] [blame] | 121 | #define IT8720F_DEVID 0x8720 |
Rudolf Marek | 08a8f6e | 2007-06-09 10:11:16 -0400 | [diff] [blame] | 122 | #define IT8726F_DEVID 0x8726 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | #define IT87_ACT_REG 0x30 |
| 124 | #define IT87_BASE_REG 0x60 |
| 125 | |
Jean Delvare | 87673dd | 2006-08-28 14:37:19 +0200 | [diff] [blame] | 126 | /* Logical device 7 registers (IT8712F and later) */ |
Jean Delvare | 895ff26 | 2009-12-09 20:35:47 +0100 | [diff] [blame] | 127 | #define IT87_SIO_GPIO3_REG 0x27 |
Jean Delvare | 591ec65 | 2009-12-09 20:35:48 +0100 | [diff] [blame] | 128 | #define IT87_SIO_GPIO5_REG 0x29 |
Jean Delvare | 87673dd | 2006-08-28 14:37:19 +0200 | [diff] [blame] | 129 | #define IT87_SIO_PINX2_REG 0x2c /* Pin selection */ |
| 130 | #define IT87_SIO_VID_REG 0xfc /* VID value */ |
Jean Delvare | d9b327c | 2010-03-05 22:17:17 +0100 | [diff] [blame^] | 131 | #define IT87_SIO_BEEP_PIN_REG 0xf6 /* Beep pin mapping */ |
Jean Delvare | 87673dd | 2006-08-28 14:37:19 +0200 | [diff] [blame] | 132 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | /* Update battery voltage after every reading if true */ |
| 134 | static int update_vbat; |
| 135 | |
| 136 | /* Not all BIOSes properly configure the PWM registers */ |
| 137 | static int fix_pwm_polarity; |
| 138 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | /* Many IT87 constants specified below */ |
| 140 | |
| 141 | /* Length of ISA address segment */ |
| 142 | #define IT87_EXTENT 8 |
| 143 | |
Bjorn Helgaas | 87b4b66 | 2008-01-22 07:21:03 -0500 | [diff] [blame] | 144 | /* Length of ISA address segment for Environmental Controller */ |
| 145 | #define IT87_EC_EXTENT 2 |
| 146 | |
| 147 | /* Offset of EC registers from ISA base address */ |
| 148 | #define IT87_EC_OFFSET 5 |
| 149 | |
| 150 | /* Where are the ISA address/data registers relative to the EC base address */ |
| 151 | #define IT87_ADDR_REG_OFFSET 0 |
| 152 | #define IT87_DATA_REG_OFFSET 1 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | |
| 154 | /*----- The IT87 registers -----*/ |
| 155 | |
| 156 | #define IT87_REG_CONFIG 0x00 |
| 157 | |
| 158 | #define IT87_REG_ALARM1 0x01 |
| 159 | #define IT87_REG_ALARM2 0x02 |
| 160 | #define IT87_REG_ALARM3 0x03 |
| 161 | |
Jean-Marc Spaggiari | b4da93e | 2009-01-07 16:37:32 +0100 | [diff] [blame] | 162 | /* The IT8718F and IT8720F have the VID value in a different register, in |
| 163 | Super-I/O configuration space. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | #define IT87_REG_VID 0x0a |
Andrew Paprocki | 0475169 | 2008-08-06 22:41:06 +0200 | [diff] [blame] | 165 | /* The IT8705F and IT8712F earlier than revision 0x08 use register 0x0b |
| 166 | for fan divisors. Later IT8712F revisions must use 16-bit tachometer |
| 167 | mode. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | #define IT87_REG_FAN_DIV 0x0b |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 169 | #define IT87_REG_FAN_16BIT 0x0c |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | |
| 171 | /* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */ |
| 172 | |
Jean Delvare | c7f1f71 | 2007-09-03 17:11:46 +0200 | [diff] [blame] | 173 | static const u8 IT87_REG_FAN[] = { 0x0d, 0x0e, 0x0f, 0x80, 0x82 }; |
| 174 | static const u8 IT87_REG_FAN_MIN[] = { 0x10, 0x11, 0x12, 0x84, 0x86 }; |
| 175 | static const u8 IT87_REG_FANX[] = { 0x18, 0x19, 0x1a, 0x81, 0x83 }; |
| 176 | static const u8 IT87_REG_FANX_MIN[] = { 0x1b, 0x1c, 0x1d, 0x85, 0x87 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | #define IT87_REG_FAN_MAIN_CTRL 0x13 |
| 178 | #define IT87_REG_FAN_CTL 0x14 |
| 179 | #define IT87_REG_PWM(nr) (0x15 + (nr)) |
| 180 | |
| 181 | #define IT87_REG_VIN(nr) (0x20 + (nr)) |
| 182 | #define IT87_REG_TEMP(nr) (0x29 + (nr)) |
| 183 | |
| 184 | #define IT87_REG_VIN_MAX(nr) (0x30 + (nr) * 2) |
| 185 | #define IT87_REG_VIN_MIN(nr) (0x31 + (nr) * 2) |
| 186 | #define IT87_REG_TEMP_HIGH(nr) (0x40 + (nr) * 2) |
| 187 | #define IT87_REG_TEMP_LOW(nr) (0x41 + (nr) * 2) |
| 188 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | #define IT87_REG_VIN_ENABLE 0x50 |
| 190 | #define IT87_REG_TEMP_ENABLE 0x51 |
Jean Delvare | d9b327c | 2010-03-05 22:17:17 +0100 | [diff] [blame^] | 191 | #define IT87_REG_BEEP_ENABLE 0x5c |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | |
| 193 | #define IT87_REG_CHIPID 0x58 |
| 194 | |
| 195 | #define IN_TO_REG(val) (SENSORS_LIMIT((((val) + 8)/16),0,255)) |
| 196 | #define IN_FROM_REG(val) ((val) * 16) |
| 197 | |
| 198 | static inline u8 FAN_TO_REG(long rpm, int div) |
| 199 | { |
| 200 | if (rpm == 0) |
| 201 | return 255; |
| 202 | rpm = SENSORS_LIMIT(rpm, 1, 1000000); |
| 203 | return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, |
| 204 | 254); |
| 205 | } |
| 206 | |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 207 | static inline u16 FAN16_TO_REG(long rpm) |
| 208 | { |
| 209 | if (rpm == 0) |
| 210 | return 0xffff; |
| 211 | return SENSORS_LIMIT((1350000 + rpm) / (rpm * 2), 1, 0xfffe); |
| 212 | } |
| 213 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | #define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div))) |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 215 | /* The divider is fixed to 2 in 16-bit mode */ |
| 216 | #define FAN16_FROM_REG(val) ((val)==0?-1:(val)==0xffff?0:1350000/((val)*2)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | |
| 218 | #define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)<0?(((val)-500)/1000):\ |
| 219 | ((val)+500)/1000),-128,127)) |
Jean Delvare | e267d25 | 2009-03-12 13:36:39 +0100 | [diff] [blame] | 220 | #define TEMP_FROM_REG(val) ((val) * 1000) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | #define PWM_TO_REG(val) ((val) >> 1) |
| 223 | #define PWM_FROM_REG(val) (((val)&0x7f) << 1) |
| 224 | |
| 225 | static int DIV_TO_REG(int val) |
| 226 | { |
| 227 | int answer = 0; |
Jean Delvare | b9e349f | 2006-08-28 14:26:22 +0200 | [diff] [blame] | 228 | while (answer < 7 && (val >>= 1)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | answer++; |
| 230 | return answer; |
| 231 | } |
| 232 | #define DIV_FROM_REG(val) (1 << (val)) |
| 233 | |
Jean Delvare | f8d0c19 | 2007-02-14 21:15:02 +0100 | [diff] [blame] | 234 | static const unsigned int pwm_freq[8] = { |
| 235 | 48000000 / 128, |
| 236 | 24000000 / 128, |
| 237 | 12000000 / 128, |
| 238 | 8000000 / 128, |
| 239 | 6000000 / 128, |
| 240 | 3000000 / 128, |
| 241 | 1500000 / 128, |
| 242 | 750000 / 128, |
| 243 | }; |
| 244 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 246 | struct it87_sio_data { |
| 247 | enum chips type; |
| 248 | /* Values read from Super-I/O config space */ |
Andrew Paprocki | 0475169 | 2008-08-06 22:41:06 +0200 | [diff] [blame] | 249 | u8 revision; |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 250 | u8 vid_value; |
Jean Delvare | d9b327c | 2010-03-05 22:17:17 +0100 | [diff] [blame^] | 251 | u8 beep_pin; |
Jean Delvare | 591ec65 | 2009-12-09 20:35:48 +0100 | [diff] [blame] | 252 | /* Features skipped based on config or DMI */ |
Jean Delvare | 895ff26 | 2009-12-09 20:35:47 +0100 | [diff] [blame] | 253 | u8 skip_vid; |
Jean Delvare | 591ec65 | 2009-12-09 20:35:48 +0100 | [diff] [blame] | 254 | u8 skip_fan; |
Jean Delvare | 98dd22c | 2008-10-09 15:33:58 +0200 | [diff] [blame] | 255 | u8 skip_pwm; |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 256 | }; |
| 257 | |
Jean Delvare | ed6bafb | 2007-02-14 21:15:03 +0100 | [diff] [blame] | 258 | /* For each registered chip, we need to keep some data in memory. |
| 259 | The structure is dynamically allocated. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | struct it87_data { |
Tony Jones | 1beeffe | 2007-08-20 13:46:20 -0700 | [diff] [blame] | 261 | struct device *hwmon_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | enum chips type; |
Andrew Paprocki | 0475169 | 2008-08-06 22:41:06 +0200 | [diff] [blame] | 263 | u8 revision; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 265 | unsigned short addr; |
| 266 | const char *name; |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 267 | struct mutex update_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | char valid; /* !=0 if following fields are valid */ |
| 269 | unsigned long last_updated; /* In jiffies */ |
| 270 | |
| 271 | u8 in[9]; /* Register value */ |
Jean Delvare | 3543a53 | 2006-08-28 14:27:25 +0200 | [diff] [blame] | 272 | u8 in_max[8]; /* Register value */ |
| 273 | u8 in_min[8]; /* Register value */ |
Jean Delvare | 9060f8b | 2006-08-28 14:24:17 +0200 | [diff] [blame] | 274 | u8 has_fan; /* Bitfield, fans enabled */ |
Jean Delvare | c7f1f71 | 2007-09-03 17:11:46 +0200 | [diff] [blame] | 275 | u16 fan[5]; /* Register values, possibly combined */ |
| 276 | u16 fan_min[5]; /* Register values, possibly combined */ |
Jean Delvare | e267d25 | 2009-03-12 13:36:39 +0100 | [diff] [blame] | 277 | s8 temp[3]; /* Register value */ |
| 278 | s8 temp_high[3]; /* Register value */ |
| 279 | s8 temp_low[3]; /* Register value */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | u8 sensor; /* Register value */ |
| 281 | u8 fan_div[3]; /* Register encoding, shifted right */ |
| 282 | u8 vid; /* Register encoding, combined */ |
Jean Delvare | a7be58a | 2005-12-18 16:40:14 +0100 | [diff] [blame] | 283 | u8 vrm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | u32 alarms; /* Register encoding, combined */ |
Jean Delvare | d9b327c | 2010-03-05 22:17:17 +0100 | [diff] [blame^] | 285 | u8 beeps; /* Register encoding */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | u8 fan_main_ctrl; /* Register value */ |
Jean Delvare | f8d0c19 | 2007-02-14 21:15:02 +0100 | [diff] [blame] | 287 | u8 fan_ctl; /* Register value */ |
Jean Delvare | b99883d | 2010-03-05 22:17:15 +0100 | [diff] [blame] | 288 | |
| 289 | /* The following 3 arrays correspond to the same registers. The |
| 290 | * meaning of bits 6-0 depends on the value of bit 7, and we want |
| 291 | * to preserve settings on mode changes, so we have to track all |
| 292 | * values separately. */ |
| 293 | u8 pwm_ctrl[3]; /* Register value */ |
| 294 | u8 pwm_duty[3]; /* Manual PWM value set by user (bit 6-0) */ |
| 295 | u8 pwm_temp_map[3]; /* PWM to temp. chan. mapping (bits 1-0) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | }; |
| 297 | |
Andrew Paprocki | 0475169 | 2008-08-06 22:41:06 +0200 | [diff] [blame] | 298 | static inline int has_16bit_fans(const struct it87_data *data) |
| 299 | { |
Andrew Paprocki | 816d8c6 | 2008-08-06 22:41:06 +0200 | [diff] [blame] | 300 | /* IT8705F Datasheet 0.4.1, 3h == Version G. |
Andrew Paprocki | 859b9ef | 2008-09-20 10:25:19 +0200 | [diff] [blame] | 301 | IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J. |
Andrew Paprocki | 816d8c6 | 2008-08-06 22:41:06 +0200 | [diff] [blame] | 302 | These are the first revisions with 16bit tachometer support. */ |
| 303 | return (data->type == it87 && data->revision >= 0x03) |
Andrew Paprocki | 859b9ef | 2008-09-20 10:25:19 +0200 | [diff] [blame] | 304 | || (data->type == it8712 && data->revision >= 0x08) |
Andrew Paprocki | 0475169 | 2008-08-06 22:41:06 +0200 | [diff] [blame] | 305 | || data->type == it8716 |
Jean-Marc Spaggiari | b4da93e | 2009-01-07 16:37:32 +0100 | [diff] [blame] | 306 | || data->type == it8718 |
| 307 | || data->type == it8720; |
Andrew Paprocki | 0475169 | 2008-08-06 22:41:06 +0200 | [diff] [blame] | 308 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 310 | static int it87_probe(struct platform_device *pdev); |
Jean Delvare | d054612 | 2007-07-22 12:09:48 +0200 | [diff] [blame] | 311 | static int __devexit it87_remove(struct platform_device *pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 313 | static int it87_read_value(struct it87_data *data, u8 reg); |
| 314 | static void it87_write_value(struct it87_data *data, u8 reg, u8 value); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | static struct it87_data *it87_update_device(struct device *dev); |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 316 | static int it87_check_pwm(struct device *dev); |
| 317 | static void it87_init_device(struct platform_device *pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | |
| 319 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 320 | static struct platform_driver it87_driver = { |
Laurent Riffard | cdaf793 | 2005-11-26 20:37:41 +0100 | [diff] [blame] | 321 | .driver = { |
Jean Delvare | 8721884 | 2006-09-03 22:36:14 +0200 | [diff] [blame] | 322 | .owner = THIS_MODULE, |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 323 | .name = DRVNAME, |
Laurent Riffard | cdaf793 | 2005-11-26 20:37:41 +0100 | [diff] [blame] | 324 | }, |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 325 | .probe = it87_probe, |
| 326 | .remove = __devexit_p(it87_remove), |
Jean Delvare | fde0950 | 2005-07-19 23:51:07 +0200 | [diff] [blame] | 327 | }; |
| 328 | |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 329 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
| 330 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 332 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 333 | int nr = sensor_attr->index; |
| 334 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | struct it87_data *data = it87_update_device(dev); |
| 336 | return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr])); |
| 337 | } |
| 338 | |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 339 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, |
| 340 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 342 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 343 | int nr = sensor_attr->index; |
| 344 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | struct it87_data *data = it87_update_device(dev); |
| 346 | return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr])); |
| 347 | } |
| 348 | |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 349 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, |
| 350 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 352 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 353 | int nr = sensor_attr->index; |
| 354 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | struct it87_data *data = it87_update_device(dev); |
| 356 | return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr])); |
| 357 | } |
| 358 | |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 359 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, |
| 360 | const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 362 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 363 | int nr = sensor_attr->index; |
| 364 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 365 | struct it87_data *data = dev_get_drvdata(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | unsigned long val = simple_strtoul(buf, NULL, 10); |
| 367 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 368 | mutex_lock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | data->in_min[nr] = IN_TO_REG(val); |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 370 | it87_write_value(data, IT87_REG_VIN_MIN(nr), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | data->in_min[nr]); |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 372 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | return count; |
| 374 | } |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 375 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, |
| 376 | const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 378 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 379 | int nr = sensor_attr->index; |
| 380 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 381 | struct it87_data *data = dev_get_drvdata(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | unsigned long val = simple_strtoul(buf, NULL, 10); |
| 383 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 384 | mutex_lock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | data->in_max[nr] = IN_TO_REG(val); |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 386 | it87_write_value(data, IT87_REG_VIN_MAX(nr), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | data->in_max[nr]); |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 388 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | return count; |
| 390 | } |
| 391 | |
| 392 | #define show_in_offset(offset) \ |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 393 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
| 394 | show_in, NULL, offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | |
| 396 | #define limit_in_offset(offset) \ |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 397 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ |
| 398 | show_in_min, set_in_min, offset); \ |
| 399 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ |
| 400 | show_in_max, set_in_max, offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | |
| 402 | show_in_offset(0); |
| 403 | limit_in_offset(0); |
| 404 | show_in_offset(1); |
| 405 | limit_in_offset(1); |
| 406 | show_in_offset(2); |
| 407 | limit_in_offset(2); |
| 408 | show_in_offset(3); |
| 409 | limit_in_offset(3); |
| 410 | show_in_offset(4); |
| 411 | limit_in_offset(4); |
| 412 | show_in_offset(5); |
| 413 | limit_in_offset(5); |
| 414 | show_in_offset(6); |
| 415 | limit_in_offset(6); |
| 416 | show_in_offset(7); |
| 417 | limit_in_offset(7); |
| 418 | show_in_offset(8); |
| 419 | |
| 420 | /* 3 temperatures */ |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 421 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
| 422 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 424 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 425 | int nr = sensor_attr->index; |
| 426 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | struct it87_data *data = it87_update_device(dev); |
| 428 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); |
| 429 | } |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 430 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, |
| 431 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 432 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 433 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 434 | int nr = sensor_attr->index; |
| 435 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | struct it87_data *data = it87_update_device(dev); |
| 437 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr])); |
| 438 | } |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 439 | static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, |
| 440 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 442 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 443 | int nr = sensor_attr->index; |
| 444 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 445 | struct it87_data *data = it87_update_device(dev); |
| 446 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_low[nr])); |
| 447 | } |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 448 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, |
| 449 | const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 451 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 452 | int nr = sensor_attr->index; |
| 453 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 454 | struct it87_data *data = dev_get_drvdata(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | int val = simple_strtol(buf, NULL, 10); |
| 456 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 457 | mutex_lock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | data->temp_high[nr] = TEMP_TO_REG(val); |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 459 | it87_write_value(data, IT87_REG_TEMP_HIGH(nr), data->temp_high[nr]); |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 460 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | return count; |
| 462 | } |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 463 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, |
| 464 | const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 466 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 467 | int nr = sensor_attr->index; |
| 468 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 469 | struct it87_data *data = dev_get_drvdata(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | int val = simple_strtol(buf, NULL, 10); |
| 471 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 472 | mutex_lock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | data->temp_low[nr] = TEMP_TO_REG(val); |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 474 | it87_write_value(data, IT87_REG_TEMP_LOW(nr), data->temp_low[nr]); |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 475 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | return count; |
| 477 | } |
| 478 | #define show_temp_offset(offset) \ |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 479 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ |
| 480 | show_temp, NULL, offset - 1); \ |
| 481 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ |
| 482 | show_temp_max, set_temp_max, offset - 1); \ |
| 483 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ |
| 484 | show_temp_min, set_temp_min, offset - 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | |
| 486 | show_temp_offset(1); |
| 487 | show_temp_offset(2); |
| 488 | show_temp_offset(3); |
| 489 | |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 490 | static ssize_t show_sensor(struct device *dev, struct device_attribute *attr, |
| 491 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 492 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 493 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 494 | int nr = sensor_attr->index; |
| 495 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | struct it87_data *data = it87_update_device(dev); |
| 497 | u8 reg = data->sensor; /* In case the value is updated while we use it */ |
| 498 | |
| 499 | if (reg & (1 << nr)) |
| 500 | return sprintf(buf, "3\n"); /* thermal diode */ |
| 501 | if (reg & (8 << nr)) |
Jean Delvare | 4ed1077 | 2008-10-17 17:51:16 +0200 | [diff] [blame] | 502 | return sprintf(buf, "4\n"); /* thermistor */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | return sprintf(buf, "0\n"); /* disabled */ |
| 504 | } |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 505 | static ssize_t set_sensor(struct device *dev, struct device_attribute *attr, |
| 506 | const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 508 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 509 | int nr = sensor_attr->index; |
| 510 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 511 | struct it87_data *data = dev_get_drvdata(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | int val = simple_strtol(buf, NULL, 10); |
| 513 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 514 | mutex_lock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 515 | |
| 516 | data->sensor &= ~(1 << nr); |
| 517 | data->sensor &= ~(8 << nr); |
Jean Delvare | 4ed1077 | 2008-10-17 17:51:16 +0200 | [diff] [blame] | 518 | if (val == 2) { /* backwards compatibility */ |
| 519 | dev_warn(dev, "Sensor type 2 is deprecated, please use 4 " |
| 520 | "instead\n"); |
| 521 | val = 4; |
| 522 | } |
| 523 | /* 3 = thermal diode; 4 = thermistor; 0 = disabled */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | if (val == 3) |
| 525 | data->sensor |= 1 << nr; |
Jean Delvare | 4ed1077 | 2008-10-17 17:51:16 +0200 | [diff] [blame] | 526 | else if (val == 4) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | data->sensor |= 8 << nr; |
| 528 | else if (val != 0) { |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 529 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | return -EINVAL; |
| 531 | } |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 532 | it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor); |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 533 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 534 | return count; |
| 535 | } |
| 536 | #define show_sensor_offset(offset) \ |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 537 | static SENSOR_DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, \ |
| 538 | show_sensor, set_sensor, offset - 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | |
| 540 | show_sensor_offset(1); |
| 541 | show_sensor_offset(2); |
| 542 | show_sensor_offset(3); |
| 543 | |
| 544 | /* 3 Fans */ |
Jean Delvare | b99883d | 2010-03-05 22:17:15 +0100 | [diff] [blame] | 545 | |
| 546 | static int pwm_mode(const struct it87_data *data, int nr) |
| 547 | { |
| 548 | int ctrl = data->fan_main_ctrl & (1 << nr); |
| 549 | |
| 550 | if (ctrl == 0) /* Full speed */ |
| 551 | return 0; |
| 552 | if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ |
| 553 | return 2; |
| 554 | else /* Manual mode */ |
| 555 | return 1; |
| 556 | } |
| 557 | |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 558 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
| 559 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 560 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 561 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 562 | int nr = sensor_attr->index; |
| 563 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | struct it87_data *data = it87_update_device(dev); |
| 565 | return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr], |
| 566 | DIV_FROM_REG(data->fan_div[nr]))); |
| 567 | } |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 568 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, |
| 569 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 571 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 572 | int nr = sensor_attr->index; |
| 573 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | struct it87_data *data = it87_update_device(dev); |
| 575 | return sprintf(buf,"%d\n", |
| 576 | FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]))); |
| 577 | } |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 578 | static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, |
| 579 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 581 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 582 | int nr = sensor_attr->index; |
| 583 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 584 | struct it87_data *data = it87_update_device(dev); |
| 585 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); |
| 586 | } |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 587 | static ssize_t show_pwm_enable(struct device *dev, struct device_attribute *attr, |
| 588 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 590 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 591 | int nr = sensor_attr->index; |
| 592 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | struct it87_data *data = it87_update_device(dev); |
Jean Delvare | b99883d | 2010-03-05 22:17:15 +0100 | [diff] [blame] | 594 | return sprintf(buf, "%d\n", pwm_mode(data, nr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 595 | } |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 596 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
| 597 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 599 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 600 | int nr = sensor_attr->index; |
| 601 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | struct it87_data *data = it87_update_device(dev); |
Jean Delvare | b99883d | 2010-03-05 22:17:15 +0100 | [diff] [blame] | 603 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm_duty[nr])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | } |
Jean Delvare | f8d0c19 | 2007-02-14 21:15:02 +0100 | [diff] [blame] | 605 | static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr, |
| 606 | char *buf) |
| 607 | { |
| 608 | struct it87_data *data = it87_update_device(dev); |
| 609 | int index = (data->fan_ctl >> 4) & 0x07; |
| 610 | |
| 611 | return sprintf(buf, "%u\n", pwm_freq[index]); |
| 612 | } |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 613 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, |
| 614 | const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 615 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 616 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 617 | int nr = sensor_attr->index; |
| 618 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 619 | struct it87_data *data = dev_get_drvdata(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | int val = simple_strtol(buf, NULL, 10); |
Jean Delvare | 7f999aa | 2007-02-14 21:15:03 +0100 | [diff] [blame] | 621 | u8 reg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 622 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 623 | mutex_lock(&data->update_lock); |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 624 | reg = it87_read_value(data, IT87_REG_FAN_DIV); |
Jean Delvare | 07eab46 | 2005-11-23 15:44:31 -0800 | [diff] [blame] | 625 | switch (nr) { |
| 626 | case 0: data->fan_div[nr] = reg & 0x07; break; |
| 627 | case 1: data->fan_div[nr] = (reg >> 3) & 0x07; break; |
| 628 | case 2: data->fan_div[nr] = (reg & 0x40) ? 3 : 1; break; |
| 629 | } |
| 630 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 631 | data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); |
Jean Delvare | c7f1f71 | 2007-09-03 17:11:46 +0200 | [diff] [blame] | 632 | it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]); |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 633 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 634 | return count; |
| 635 | } |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 636 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, |
| 637 | const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 639 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 640 | int nr = sensor_attr->index; |
| 641 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 642 | struct it87_data *data = dev_get_drvdata(dev); |
Jean Delvare | b9e349f | 2006-08-28 14:26:22 +0200 | [diff] [blame] | 643 | unsigned long val = simple_strtoul(buf, NULL, 10); |
Jean Delvare | 8ab4ec3 | 2006-08-28 14:35:46 +0200 | [diff] [blame] | 644 | int min; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 645 | u8 old; |
| 646 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 647 | mutex_lock(&data->update_lock); |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 648 | old = it87_read_value(data, IT87_REG_FAN_DIV); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 649 | |
Jean Delvare | 8ab4ec3 | 2006-08-28 14:35:46 +0200 | [diff] [blame] | 650 | /* Save fan min limit */ |
| 651 | min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 652 | |
| 653 | switch (nr) { |
| 654 | case 0: |
| 655 | case 1: |
| 656 | data->fan_div[nr] = DIV_TO_REG(val); |
| 657 | break; |
| 658 | case 2: |
| 659 | if (val < 8) |
| 660 | data->fan_div[nr] = 1; |
| 661 | else |
| 662 | data->fan_div[nr] = 3; |
| 663 | } |
| 664 | val = old & 0x80; |
| 665 | val |= (data->fan_div[0] & 0x07); |
| 666 | val |= (data->fan_div[1] & 0x07) << 3; |
| 667 | if (data->fan_div[2] == 3) |
| 668 | val |= 0x1 << 6; |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 669 | it87_write_value(data, IT87_REG_FAN_DIV, val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 670 | |
Jean Delvare | 8ab4ec3 | 2006-08-28 14:35:46 +0200 | [diff] [blame] | 671 | /* Restore fan min limit */ |
| 672 | data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); |
Jean Delvare | c7f1f71 | 2007-09-03 17:11:46 +0200 | [diff] [blame] | 673 | it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]); |
Jean Delvare | 8ab4ec3 | 2006-08-28 14:35:46 +0200 | [diff] [blame] | 674 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 675 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 676 | return count; |
| 677 | } |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 678 | static ssize_t set_pwm_enable(struct device *dev, |
| 679 | struct device_attribute *attr, const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 681 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 682 | int nr = sensor_attr->index; |
| 683 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 684 | struct it87_data *data = dev_get_drvdata(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | int val = simple_strtol(buf, NULL, 10); |
| 686 | |
Jean Delvare | b99883d | 2010-03-05 22:17:15 +0100 | [diff] [blame] | 687 | if (val < 0 || val > 2) |
| 688 | return -EINVAL; |
| 689 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 690 | mutex_lock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 691 | |
| 692 | if (val == 0) { |
| 693 | int tmp; |
| 694 | /* make sure the fan is on when in on/off mode */ |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 695 | tmp = it87_read_value(data, IT87_REG_FAN_CTL); |
| 696 | it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 697 | /* set on/off mode */ |
| 698 | data->fan_main_ctrl &= ~(1 << nr); |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 699 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl); |
Jean Delvare | b99883d | 2010-03-05 22:17:15 +0100 | [diff] [blame] | 700 | } else { |
| 701 | if (val == 1) /* Manual mode */ |
| 702 | data->pwm_ctrl[nr] = data->pwm_duty[nr]; |
| 703 | else /* Automatic mode */ |
| 704 | data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; |
| 705 | it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 706 | /* set SmartGuardian mode */ |
| 707 | data->fan_main_ctrl |= (1 << nr); |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 708 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | } |
| 710 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 711 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 712 | return count; |
| 713 | } |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 714 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, |
| 715 | const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 716 | { |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 717 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 718 | int nr = sensor_attr->index; |
| 719 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 720 | struct it87_data *data = dev_get_drvdata(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 721 | int val = simple_strtol(buf, NULL, 10); |
| 722 | |
| 723 | if (val < 0 || val > 255) |
| 724 | return -EINVAL; |
| 725 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 726 | mutex_lock(&data->update_lock); |
Jean Delvare | b99883d | 2010-03-05 22:17:15 +0100 | [diff] [blame] | 727 | data->pwm_duty[nr] = PWM_TO_REG(val); |
| 728 | /* If we are in manual mode, write the duty cycle immediately; |
| 729 | * otherwise, just store it for later use. */ |
| 730 | if (!(data->pwm_ctrl[nr] & 0x80)) { |
| 731 | data->pwm_ctrl[nr] = data->pwm_duty[nr]; |
| 732 | it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); |
| 733 | } |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 734 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | return count; |
| 736 | } |
Jean Delvare | f8d0c19 | 2007-02-14 21:15:02 +0100 | [diff] [blame] | 737 | static ssize_t set_pwm_freq(struct device *dev, |
| 738 | struct device_attribute *attr, const char *buf, size_t count) |
| 739 | { |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 740 | struct it87_data *data = dev_get_drvdata(dev); |
Jean Delvare | f8d0c19 | 2007-02-14 21:15:02 +0100 | [diff] [blame] | 741 | unsigned long val = simple_strtoul(buf, NULL, 10); |
| 742 | int i; |
| 743 | |
| 744 | /* Search for the nearest available frequency */ |
| 745 | for (i = 0; i < 7; i++) { |
| 746 | if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2) |
| 747 | break; |
| 748 | } |
| 749 | |
| 750 | mutex_lock(&data->update_lock); |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 751 | data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL) & 0x8f; |
Jean Delvare | f8d0c19 | 2007-02-14 21:15:02 +0100 | [diff] [blame] | 752 | data->fan_ctl |= i << 4; |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 753 | it87_write_value(data, IT87_REG_FAN_CTL, data->fan_ctl); |
Jean Delvare | f8d0c19 | 2007-02-14 21:15:02 +0100 | [diff] [blame] | 754 | mutex_unlock(&data->update_lock); |
| 755 | |
| 756 | return count; |
| 757 | } |
Jean Delvare | 94ac7ee | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 758 | static ssize_t show_pwm_temp_map(struct device *dev, |
| 759 | struct device_attribute *attr, char *buf) |
| 760 | { |
| 761 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 762 | int nr = sensor_attr->index; |
| 763 | |
| 764 | struct it87_data *data = it87_update_device(dev); |
| 765 | int map; |
| 766 | |
| 767 | if (data->pwm_temp_map[nr] < 3) |
| 768 | map = 1 << data->pwm_temp_map[nr]; |
| 769 | else |
| 770 | map = 0; /* Should never happen */ |
| 771 | return sprintf(buf, "%d\n", map); |
| 772 | } |
| 773 | static ssize_t set_pwm_temp_map(struct device *dev, |
| 774 | struct device_attribute *attr, const char *buf, size_t count) |
| 775 | { |
| 776 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 777 | int nr = sensor_attr->index; |
| 778 | |
| 779 | struct it87_data *data = dev_get_drvdata(dev); |
| 780 | long val; |
| 781 | u8 reg; |
| 782 | |
| 783 | if (strict_strtol(buf, 10, &val) < 0) |
| 784 | return -EINVAL; |
| 785 | |
| 786 | switch (val) { |
| 787 | case (1 << 0): |
| 788 | reg = 0x00; |
| 789 | break; |
| 790 | case (1 << 1): |
| 791 | reg = 0x01; |
| 792 | break; |
| 793 | case (1 << 2): |
| 794 | reg = 0x02; |
| 795 | break; |
| 796 | default: |
| 797 | return -EINVAL; |
| 798 | } |
| 799 | |
| 800 | mutex_lock(&data->update_lock); |
| 801 | data->pwm_temp_map[nr] = reg; |
| 802 | /* If we are in automatic mode, write the temp mapping immediately; |
| 803 | * otherwise, just store it for later use. */ |
| 804 | if (data->pwm_ctrl[nr] & 0x80) { |
| 805 | data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; |
| 806 | it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); |
| 807 | } |
| 808 | mutex_unlock(&data->update_lock); |
| 809 | return count; |
| 810 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 812 | #define show_fan_offset(offset) \ |
| 813 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ |
| 814 | show_fan, NULL, offset - 1); \ |
| 815 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ |
| 816 | show_fan_min, set_fan_min, offset - 1); \ |
| 817 | static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ |
| 818 | show_fan_div, set_fan_div, offset - 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 819 | |
| 820 | show_fan_offset(1); |
| 821 | show_fan_offset(2); |
| 822 | show_fan_offset(3); |
| 823 | |
| 824 | #define show_pwm_offset(offset) \ |
Jean Delvare | 20ad93d | 2005-06-05 11:53:25 +0200 | [diff] [blame] | 825 | static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ |
| 826 | show_pwm_enable, set_pwm_enable, offset - 1); \ |
| 827 | static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ |
Jean Delvare | f8d0c19 | 2007-02-14 21:15:02 +0100 | [diff] [blame] | 828 | show_pwm, set_pwm, offset - 1); \ |
| 829 | static DEVICE_ATTR(pwm##offset##_freq, \ |
| 830 | (offset == 1 ? S_IRUGO | S_IWUSR : S_IRUGO), \ |
Jean Delvare | 94ac7ee | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 831 | show_pwm_freq, (offset == 1 ? set_pwm_freq : NULL)); \ |
| 832 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels_temp, \ |
| 833 | S_IRUGO, show_pwm_temp_map, set_pwm_temp_map, \ |
| 834 | offset - 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 835 | |
| 836 | show_pwm_offset(1); |
| 837 | show_pwm_offset(2); |
| 838 | show_pwm_offset(3); |
| 839 | |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 840 | /* A different set of callbacks for 16-bit fans */ |
| 841 | static ssize_t show_fan16(struct device *dev, struct device_attribute *attr, |
| 842 | char *buf) |
| 843 | { |
| 844 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 845 | int nr = sensor_attr->index; |
| 846 | struct it87_data *data = it87_update_device(dev); |
| 847 | return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan[nr])); |
| 848 | } |
| 849 | |
| 850 | static ssize_t show_fan16_min(struct device *dev, struct device_attribute *attr, |
| 851 | char *buf) |
| 852 | { |
| 853 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 854 | int nr = sensor_attr->index; |
| 855 | struct it87_data *data = it87_update_device(dev); |
| 856 | return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan_min[nr])); |
| 857 | } |
| 858 | |
| 859 | static ssize_t set_fan16_min(struct device *dev, struct device_attribute *attr, |
| 860 | const char *buf, size_t count) |
| 861 | { |
| 862 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 863 | int nr = sensor_attr->index; |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 864 | struct it87_data *data = dev_get_drvdata(dev); |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 865 | int val = simple_strtol(buf, NULL, 10); |
| 866 | |
| 867 | mutex_lock(&data->update_lock); |
| 868 | data->fan_min[nr] = FAN16_TO_REG(val); |
Jean Delvare | c7f1f71 | 2007-09-03 17:11:46 +0200 | [diff] [blame] | 869 | it87_write_value(data, IT87_REG_FAN_MIN[nr], |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 870 | data->fan_min[nr] & 0xff); |
Jean Delvare | c7f1f71 | 2007-09-03 17:11:46 +0200 | [diff] [blame] | 871 | it87_write_value(data, IT87_REG_FANX_MIN[nr], |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 872 | data->fan_min[nr] >> 8); |
| 873 | mutex_unlock(&data->update_lock); |
| 874 | return count; |
| 875 | } |
| 876 | |
| 877 | /* We want to use the same sysfs file names as 8-bit fans, but we need |
| 878 | different variable names, so we have to use SENSOR_ATTR instead of |
| 879 | SENSOR_DEVICE_ATTR. */ |
| 880 | #define show_fan16_offset(offset) \ |
| 881 | static struct sensor_device_attribute sensor_dev_attr_fan##offset##_input16 \ |
| 882 | = SENSOR_ATTR(fan##offset##_input, S_IRUGO, \ |
| 883 | show_fan16, NULL, offset - 1); \ |
| 884 | static struct sensor_device_attribute sensor_dev_attr_fan##offset##_min16 \ |
| 885 | = SENSOR_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ |
| 886 | show_fan16_min, set_fan16_min, offset - 1) |
| 887 | |
| 888 | show_fan16_offset(1); |
| 889 | show_fan16_offset(2); |
| 890 | show_fan16_offset(3); |
Jean Delvare | c7f1f71 | 2007-09-03 17:11:46 +0200 | [diff] [blame] | 891 | show_fan16_offset(4); |
| 892 | show_fan16_offset(5); |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 893 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 894 | /* Alarms */ |
Yani Ioannou | 30f7429 | 2005-05-17 06:41:35 -0400 | [diff] [blame] | 895 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 896 | { |
| 897 | struct it87_data *data = it87_update_device(dev); |
Jean Delvare | 68188ba | 2005-05-16 18:52:38 +0200 | [diff] [blame] | 898 | return sprintf(buf, "%u\n", data->alarms); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 899 | } |
Jean Delvare | 1d66c64 | 2005-04-18 21:16:59 -0700 | [diff] [blame] | 900 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 901 | |
Jean Delvare | 0124dd7 | 2007-11-25 16:16:41 +0100 | [diff] [blame] | 902 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
| 903 | char *buf) |
| 904 | { |
| 905 | int bitnr = to_sensor_dev_attr(attr)->index; |
| 906 | struct it87_data *data = it87_update_device(dev); |
| 907 | return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); |
| 908 | } |
| 909 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8); |
| 910 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9); |
| 911 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10); |
| 912 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11); |
| 913 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12); |
| 914 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13); |
| 915 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14); |
| 916 | static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15); |
| 917 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0); |
| 918 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1); |
| 919 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2); |
| 920 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3); |
| 921 | static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6); |
| 922 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16); |
| 923 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17); |
| 924 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18); |
| 925 | |
Jean Delvare | d9b327c | 2010-03-05 22:17:17 +0100 | [diff] [blame^] | 926 | static ssize_t show_beep(struct device *dev, struct device_attribute *attr, |
| 927 | char *buf) |
| 928 | { |
| 929 | int bitnr = to_sensor_dev_attr(attr)->index; |
| 930 | struct it87_data *data = it87_update_device(dev); |
| 931 | return sprintf(buf, "%u\n", (data->beeps >> bitnr) & 1); |
| 932 | } |
| 933 | static ssize_t set_beep(struct device *dev, struct device_attribute *attr, |
| 934 | const char *buf, size_t count) |
| 935 | { |
| 936 | int bitnr = to_sensor_dev_attr(attr)->index; |
| 937 | struct it87_data *data = dev_get_drvdata(dev); |
| 938 | long val; |
| 939 | |
| 940 | if (strict_strtol(buf, 10, &val) < 0 |
| 941 | || (val != 0 && val != 1)) |
| 942 | return -EINVAL; |
| 943 | |
| 944 | mutex_lock(&data->update_lock); |
| 945 | data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); |
| 946 | if (val) |
| 947 | data->beeps |= (1 << bitnr); |
| 948 | else |
| 949 | data->beeps &= ~(1 << bitnr); |
| 950 | it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps); |
| 951 | mutex_unlock(&data->update_lock); |
| 952 | return count; |
| 953 | } |
| 954 | |
| 955 | static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR, |
| 956 | show_beep, set_beep, 1); |
| 957 | static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1); |
| 958 | static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1); |
| 959 | static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1); |
| 960 | static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1); |
| 961 | static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1); |
| 962 | static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1); |
| 963 | static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1); |
| 964 | /* fanX_beep writability is set later */ |
| 965 | static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0); |
| 966 | static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0); |
| 967 | static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0); |
| 968 | static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0); |
| 969 | static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0); |
| 970 | static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR, |
| 971 | show_beep, set_beep, 2); |
| 972 | static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2); |
| 973 | static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, show_beep, NULL, 2); |
| 974 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 975 | static ssize_t |
Yani Ioannou | 30f7429 | 2005-05-17 06:41:35 -0400 | [diff] [blame] | 976 | show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 977 | { |
Jean Delvare | 90d6619 | 2007-10-08 18:24:35 +0200 | [diff] [blame] | 978 | struct it87_data *data = dev_get_drvdata(dev); |
Jean Delvare | a7be58a | 2005-12-18 16:40:14 +0100 | [diff] [blame] | 979 | return sprintf(buf, "%u\n", data->vrm); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 980 | } |
| 981 | static ssize_t |
Yani Ioannou | 30f7429 | 2005-05-17 06:41:35 -0400 | [diff] [blame] | 982 | store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 983 | { |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 984 | struct it87_data *data = dev_get_drvdata(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 985 | u32 val; |
| 986 | |
| 987 | val = simple_strtoul(buf, NULL, 10); |
| 988 | data->vrm = val; |
| 989 | |
| 990 | return count; |
| 991 | } |
| 992 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 993 | |
| 994 | static ssize_t |
Yani Ioannou | 30f7429 | 2005-05-17 06:41:35 -0400 | [diff] [blame] | 995 | show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 996 | { |
| 997 | struct it87_data *data = it87_update_device(dev); |
| 998 | return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm)); |
| 999 | } |
| 1000 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1001 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1002 | static ssize_t show_name(struct device *dev, struct device_attribute |
| 1003 | *devattr, char *buf) |
| 1004 | { |
| 1005 | struct it87_data *data = dev_get_drvdata(dev); |
| 1006 | return sprintf(buf, "%s\n", data->name); |
| 1007 | } |
| 1008 | static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); |
| 1009 | |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1010 | static struct attribute *it87_attributes[] = { |
| 1011 | &sensor_dev_attr_in0_input.dev_attr.attr, |
| 1012 | &sensor_dev_attr_in1_input.dev_attr.attr, |
| 1013 | &sensor_dev_attr_in2_input.dev_attr.attr, |
| 1014 | &sensor_dev_attr_in3_input.dev_attr.attr, |
| 1015 | &sensor_dev_attr_in4_input.dev_attr.attr, |
| 1016 | &sensor_dev_attr_in5_input.dev_attr.attr, |
| 1017 | &sensor_dev_attr_in6_input.dev_attr.attr, |
| 1018 | &sensor_dev_attr_in7_input.dev_attr.attr, |
| 1019 | &sensor_dev_attr_in8_input.dev_attr.attr, |
| 1020 | &sensor_dev_attr_in0_min.dev_attr.attr, |
| 1021 | &sensor_dev_attr_in1_min.dev_attr.attr, |
| 1022 | &sensor_dev_attr_in2_min.dev_attr.attr, |
| 1023 | &sensor_dev_attr_in3_min.dev_attr.attr, |
| 1024 | &sensor_dev_attr_in4_min.dev_attr.attr, |
| 1025 | &sensor_dev_attr_in5_min.dev_attr.attr, |
| 1026 | &sensor_dev_attr_in6_min.dev_attr.attr, |
| 1027 | &sensor_dev_attr_in7_min.dev_attr.attr, |
| 1028 | &sensor_dev_attr_in0_max.dev_attr.attr, |
| 1029 | &sensor_dev_attr_in1_max.dev_attr.attr, |
| 1030 | &sensor_dev_attr_in2_max.dev_attr.attr, |
| 1031 | &sensor_dev_attr_in3_max.dev_attr.attr, |
| 1032 | &sensor_dev_attr_in4_max.dev_attr.attr, |
| 1033 | &sensor_dev_attr_in5_max.dev_attr.attr, |
| 1034 | &sensor_dev_attr_in6_max.dev_attr.attr, |
| 1035 | &sensor_dev_attr_in7_max.dev_attr.attr, |
Jean Delvare | 0124dd7 | 2007-11-25 16:16:41 +0100 | [diff] [blame] | 1036 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
| 1037 | &sensor_dev_attr_in1_alarm.dev_attr.attr, |
| 1038 | &sensor_dev_attr_in2_alarm.dev_attr.attr, |
| 1039 | &sensor_dev_attr_in3_alarm.dev_attr.attr, |
| 1040 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
| 1041 | &sensor_dev_attr_in5_alarm.dev_attr.attr, |
| 1042 | &sensor_dev_attr_in6_alarm.dev_attr.attr, |
| 1043 | &sensor_dev_attr_in7_alarm.dev_attr.attr, |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1044 | |
| 1045 | &sensor_dev_attr_temp1_input.dev_attr.attr, |
| 1046 | &sensor_dev_attr_temp2_input.dev_attr.attr, |
| 1047 | &sensor_dev_attr_temp3_input.dev_attr.attr, |
| 1048 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
| 1049 | &sensor_dev_attr_temp2_max.dev_attr.attr, |
| 1050 | &sensor_dev_attr_temp3_max.dev_attr.attr, |
| 1051 | &sensor_dev_attr_temp1_min.dev_attr.attr, |
| 1052 | &sensor_dev_attr_temp2_min.dev_attr.attr, |
| 1053 | &sensor_dev_attr_temp3_min.dev_attr.attr, |
| 1054 | &sensor_dev_attr_temp1_type.dev_attr.attr, |
| 1055 | &sensor_dev_attr_temp2_type.dev_attr.attr, |
| 1056 | &sensor_dev_attr_temp3_type.dev_attr.attr, |
Jean Delvare | 0124dd7 | 2007-11-25 16:16:41 +0100 | [diff] [blame] | 1057 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
| 1058 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, |
| 1059 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1060 | |
| 1061 | &dev_attr_alarms.attr, |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1062 | &dev_attr_name.attr, |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1063 | NULL |
| 1064 | }; |
| 1065 | |
| 1066 | static const struct attribute_group it87_group = { |
| 1067 | .attrs = it87_attributes, |
| 1068 | }; |
| 1069 | |
Jean Delvare | d9b327c | 2010-03-05 22:17:17 +0100 | [diff] [blame^] | 1070 | static struct attribute *it87_attributes_beep[] = { |
| 1071 | &sensor_dev_attr_in0_beep.dev_attr.attr, |
| 1072 | &sensor_dev_attr_in1_beep.dev_attr.attr, |
| 1073 | &sensor_dev_attr_in2_beep.dev_attr.attr, |
| 1074 | &sensor_dev_attr_in3_beep.dev_attr.attr, |
| 1075 | &sensor_dev_attr_in4_beep.dev_attr.attr, |
| 1076 | &sensor_dev_attr_in5_beep.dev_attr.attr, |
| 1077 | &sensor_dev_attr_in6_beep.dev_attr.attr, |
| 1078 | &sensor_dev_attr_in7_beep.dev_attr.attr, |
| 1079 | |
| 1080 | &sensor_dev_attr_temp1_beep.dev_attr.attr, |
| 1081 | &sensor_dev_attr_temp2_beep.dev_attr.attr, |
| 1082 | &sensor_dev_attr_temp3_beep.dev_attr.attr, |
| 1083 | NULL |
| 1084 | }; |
| 1085 | |
| 1086 | static const struct attribute_group it87_group_beep = { |
| 1087 | .attrs = it87_attributes_beep, |
| 1088 | }; |
| 1089 | |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1090 | static struct attribute *it87_attributes_fan16[5][3+1] = { { |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1091 | &sensor_dev_attr_fan1_input16.dev_attr.attr, |
| 1092 | &sensor_dev_attr_fan1_min16.dev_attr.attr, |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1093 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
| 1094 | NULL |
| 1095 | }, { |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1096 | &sensor_dev_attr_fan2_input16.dev_attr.attr, |
| 1097 | &sensor_dev_attr_fan2_min16.dev_attr.attr, |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1098 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
| 1099 | NULL |
| 1100 | }, { |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1101 | &sensor_dev_attr_fan3_input16.dev_attr.attr, |
| 1102 | &sensor_dev_attr_fan3_min16.dev_attr.attr, |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1103 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, |
| 1104 | NULL |
| 1105 | }, { |
Jean Delvare | c7f1f71 | 2007-09-03 17:11:46 +0200 | [diff] [blame] | 1106 | &sensor_dev_attr_fan4_input16.dev_attr.attr, |
| 1107 | &sensor_dev_attr_fan4_min16.dev_attr.attr, |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1108 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, |
| 1109 | NULL |
| 1110 | }, { |
Jean Delvare | c7f1f71 | 2007-09-03 17:11:46 +0200 | [diff] [blame] | 1111 | &sensor_dev_attr_fan5_input16.dev_attr.attr, |
| 1112 | &sensor_dev_attr_fan5_min16.dev_attr.attr, |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1113 | &sensor_dev_attr_fan5_alarm.dev_attr.attr, |
| 1114 | NULL |
| 1115 | } }; |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1116 | |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1117 | static const struct attribute_group it87_group_fan16[5] = { |
| 1118 | { .attrs = it87_attributes_fan16[0] }, |
| 1119 | { .attrs = it87_attributes_fan16[1] }, |
| 1120 | { .attrs = it87_attributes_fan16[2] }, |
| 1121 | { .attrs = it87_attributes_fan16[3] }, |
| 1122 | { .attrs = it87_attributes_fan16[4] }, |
| 1123 | }; |
| 1124 | |
| 1125 | static struct attribute *it87_attributes_fan[3][4+1] = { { |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1126 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
| 1127 | &sensor_dev_attr_fan1_min.dev_attr.attr, |
| 1128 | &sensor_dev_attr_fan1_div.dev_attr.attr, |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1129 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
| 1130 | NULL |
| 1131 | }, { |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1132 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
| 1133 | &sensor_dev_attr_fan2_min.dev_attr.attr, |
| 1134 | &sensor_dev_attr_fan2_div.dev_attr.attr, |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1135 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
| 1136 | NULL |
| 1137 | }, { |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1138 | &sensor_dev_attr_fan3_input.dev_attr.attr, |
| 1139 | &sensor_dev_attr_fan3_min.dev_attr.attr, |
| 1140 | &sensor_dev_attr_fan3_div.dev_attr.attr, |
Jean Delvare | 0124dd7 | 2007-11-25 16:16:41 +0100 | [diff] [blame] | 1141 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1142 | NULL |
| 1143 | } }; |
Jean Delvare | 0124dd7 | 2007-11-25 16:16:41 +0100 | [diff] [blame] | 1144 | |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1145 | static const struct attribute_group it87_group_fan[3] = { |
| 1146 | { .attrs = it87_attributes_fan[0] }, |
| 1147 | { .attrs = it87_attributes_fan[1] }, |
| 1148 | { .attrs = it87_attributes_fan[2] }, |
| 1149 | }; |
| 1150 | |
| 1151 | static const struct attribute_group * |
| 1152 | it87_get_fan_group(const struct it87_data *data) |
| 1153 | { |
| 1154 | return has_16bit_fans(data) ? it87_group_fan16 : it87_group_fan; |
| 1155 | } |
| 1156 | |
| 1157 | static struct attribute *it87_attributes_pwm[3][4+1] = { { |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1158 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1159 | &sensor_dev_attr_pwm1.dev_attr.attr, |
Jean Delvare | d5b0b5d | 2007-12-14 14:41:53 +0100 | [diff] [blame] | 1160 | &dev_attr_pwm1_freq.attr, |
Jean Delvare | 94ac7ee | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1161 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1162 | NULL |
| 1163 | }, { |
| 1164 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, |
| 1165 | &sensor_dev_attr_pwm2.dev_attr.attr, |
| 1166 | &dev_attr_pwm2_freq.attr, |
Jean Delvare | 94ac7ee | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1167 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1168 | NULL |
| 1169 | }, { |
| 1170 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, |
| 1171 | &sensor_dev_attr_pwm3.dev_attr.attr, |
| 1172 | &dev_attr_pwm3_freq.attr, |
Jean Delvare | 94ac7ee | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1173 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1174 | NULL |
| 1175 | } }; |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1176 | |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1177 | static const struct attribute_group it87_group_pwm[3] = { |
| 1178 | { .attrs = it87_attributes_pwm[0] }, |
| 1179 | { .attrs = it87_attributes_pwm[1] }, |
| 1180 | { .attrs = it87_attributes_pwm[2] }, |
| 1181 | }; |
| 1182 | |
Jean Delvare | d9b327c | 2010-03-05 22:17:17 +0100 | [diff] [blame^] | 1183 | static struct attribute *it87_attributes_fan_beep[] = { |
| 1184 | &sensor_dev_attr_fan1_beep.dev_attr.attr, |
| 1185 | &sensor_dev_attr_fan2_beep.dev_attr.attr, |
| 1186 | &sensor_dev_attr_fan3_beep.dev_attr.attr, |
| 1187 | &sensor_dev_attr_fan4_beep.dev_attr.attr, |
| 1188 | &sensor_dev_attr_fan5_beep.dev_attr.attr, |
| 1189 | }; |
| 1190 | |
Jean Delvare | 6a8d7ac | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1191 | static struct attribute *it87_attributes_vid[] = { |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1192 | &dev_attr_vrm.attr, |
| 1193 | &dev_attr_cpu0_vid.attr, |
| 1194 | NULL |
| 1195 | }; |
| 1196 | |
Jean Delvare | 6a8d7ac | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1197 | static const struct attribute_group it87_group_vid = { |
| 1198 | .attrs = it87_attributes_vid, |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1199 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1200 | |
Jean Delvare | 2d8672c | 2005-07-19 23:56:35 +0200 | [diff] [blame] | 1201 | /* SuperIO detection - will change isa_address if a chip is found */ |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1202 | static int __init it87_find(unsigned short *address, |
| 1203 | struct it87_sio_data *sio_data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1204 | { |
| 1205 | int err = -ENODEV; |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1206 | u16 chip_type; |
Jean Delvare | 98dd22c | 2008-10-09 15:33:58 +0200 | [diff] [blame] | 1207 | const char *board_vendor, *board_name; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1208 | |
| 1209 | superio_enter(); |
Jean Delvare | 67b671b | 2007-12-06 23:13:42 +0100 | [diff] [blame] | 1210 | chip_type = force_id ? force_id : superio_inw(DEVID); |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1211 | |
| 1212 | switch (chip_type) { |
| 1213 | case IT8705F_DEVID: |
| 1214 | sio_data->type = it87; |
| 1215 | break; |
| 1216 | case IT8712F_DEVID: |
| 1217 | sio_data->type = it8712; |
| 1218 | break; |
| 1219 | case IT8716F_DEVID: |
| 1220 | case IT8726F_DEVID: |
| 1221 | sio_data->type = it8716; |
| 1222 | break; |
| 1223 | case IT8718F_DEVID: |
| 1224 | sio_data->type = it8718; |
| 1225 | break; |
Jean-Marc Spaggiari | b4da93e | 2009-01-07 16:37:32 +0100 | [diff] [blame] | 1226 | case IT8720F_DEVID: |
| 1227 | sio_data->type = it8720; |
| 1228 | break; |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1229 | case 0xffff: /* No device at all */ |
| 1230 | goto exit; |
| 1231 | default: |
| 1232 | pr_debug(DRVNAME ": Unsupported chip (DEVID=0x%x)\n", |
| 1233 | chip_type); |
| 1234 | goto exit; |
| 1235 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1236 | |
Jean Delvare | 87673dd | 2006-08-28 14:37:19 +0200 | [diff] [blame] | 1237 | superio_select(PME); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1238 | if (!(superio_inb(IT87_ACT_REG) & 0x01)) { |
| 1239 | pr_info("it87: Device not activated, skipping\n"); |
| 1240 | goto exit; |
| 1241 | } |
| 1242 | |
| 1243 | *address = superio_inw(IT87_BASE_REG) & ~(IT87_EXTENT - 1); |
| 1244 | if (*address == 0) { |
| 1245 | pr_info("it87: Base address not set, skipping\n"); |
| 1246 | goto exit; |
| 1247 | } |
| 1248 | |
| 1249 | err = 0; |
Andrew Paprocki | 0475169 | 2008-08-06 22:41:06 +0200 | [diff] [blame] | 1250 | sio_data->revision = superio_inb(DEVREV) & 0x0f; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1251 | pr_info("it87: Found IT%04xF chip at 0x%x, revision %d\n", |
Andrew Paprocki | 0475169 | 2008-08-06 22:41:06 +0200 | [diff] [blame] | 1252 | chip_type, *address, sio_data->revision); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1253 | |
Jean Delvare | 87673dd | 2006-08-28 14:37:19 +0200 | [diff] [blame] | 1254 | /* Read GPIO config and VID value from LDN 7 (GPIO) */ |
Jean Delvare | 895ff26 | 2009-12-09 20:35:47 +0100 | [diff] [blame] | 1255 | if (sio_data->type == it87) { |
| 1256 | /* The IT8705F doesn't have VID pins at all */ |
| 1257 | sio_data->skip_vid = 1; |
Jean Delvare | d9b327c | 2010-03-05 22:17:17 +0100 | [diff] [blame^] | 1258 | |
| 1259 | /* The IT8705F has a different LD number for GPIO */ |
| 1260 | superio_select(5); |
| 1261 | sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; |
Jean Delvare | 895ff26 | 2009-12-09 20:35:47 +0100 | [diff] [blame] | 1262 | } else { |
Jean Delvare | 87673dd | 2006-08-28 14:37:19 +0200 | [diff] [blame] | 1263 | int reg; |
| 1264 | |
| 1265 | superio_select(GPIO); |
Jean Delvare | 895ff26 | 2009-12-09 20:35:47 +0100 | [diff] [blame] | 1266 | /* We need at least 4 VID pins */ |
| 1267 | reg = superio_inb(IT87_SIO_GPIO3_REG); |
| 1268 | if (reg & 0x0f) { |
| 1269 | pr_info("it87: VID is disabled (pins used for GPIO)\n"); |
| 1270 | sio_data->skip_vid = 1; |
| 1271 | } |
| 1272 | |
Jean Delvare | 591ec65 | 2009-12-09 20:35:48 +0100 | [diff] [blame] | 1273 | /* Check if fan3 is there or not */ |
| 1274 | if (reg & (1 << 6)) |
| 1275 | sio_data->skip_pwm |= (1 << 2); |
| 1276 | if (reg & (1 << 7)) |
| 1277 | sio_data->skip_fan |= (1 << 2); |
| 1278 | |
| 1279 | /* Check if fan2 is there or not */ |
| 1280 | reg = superio_inb(IT87_SIO_GPIO5_REG); |
| 1281 | if (reg & (1 << 1)) |
| 1282 | sio_data->skip_pwm |= (1 << 1); |
| 1283 | if (reg & (1 << 2)) |
| 1284 | sio_data->skip_fan |= (1 << 1); |
| 1285 | |
Jean Delvare | 895ff26 | 2009-12-09 20:35:47 +0100 | [diff] [blame] | 1286 | if ((sio_data->type == it8718 || sio_data->type == it8720) |
| 1287 | && !(sio_data->skip_vid)) |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1288 | sio_data->vid_value = superio_inb(IT87_SIO_VID_REG); |
Jean Delvare | 87673dd | 2006-08-28 14:37:19 +0200 | [diff] [blame] | 1289 | |
| 1290 | reg = superio_inb(IT87_SIO_PINX2_REG); |
| 1291 | if (reg & (1 << 0)) |
| 1292 | pr_info("it87: in3 is VCC (+5V)\n"); |
| 1293 | if (reg & (1 << 1)) |
| 1294 | pr_info("it87: in7 is VCCH (+5V Stand-By)\n"); |
Jean Delvare | d9b327c | 2010-03-05 22:17:17 +0100 | [diff] [blame^] | 1295 | |
| 1296 | sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; |
Jean Delvare | 87673dd | 2006-08-28 14:37:19 +0200 | [diff] [blame] | 1297 | } |
Jean Delvare | d9b327c | 2010-03-05 22:17:17 +0100 | [diff] [blame^] | 1298 | if (sio_data->beep_pin) |
| 1299 | pr_info("it87: Beeping is supported\n"); |
Jean Delvare | 87673dd | 2006-08-28 14:37:19 +0200 | [diff] [blame] | 1300 | |
Jean Delvare | 98dd22c | 2008-10-09 15:33:58 +0200 | [diff] [blame] | 1301 | /* Disable specific features based on DMI strings */ |
| 1302 | board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR); |
| 1303 | board_name = dmi_get_system_info(DMI_BOARD_NAME); |
| 1304 | if (board_vendor && board_name) { |
| 1305 | if (strcmp(board_vendor, "nVIDIA") == 0 |
| 1306 | && strcmp(board_name, "FN68PT") == 0) { |
| 1307 | /* On the Shuttle SN68PT, FAN_CTL2 is apparently not |
| 1308 | connected to a fan, but to something else. One user |
| 1309 | has reported instant system power-off when changing |
| 1310 | the PWM2 duty cycle, so we disable it. |
| 1311 | I use the board name string as the trigger in case |
| 1312 | the same board is ever used in other systems. */ |
| 1313 | pr_info("it87: Disabling pwm2 due to " |
| 1314 | "hardware constraints\n"); |
| 1315 | sio_data->skip_pwm = (1 << 1); |
| 1316 | } |
| 1317 | } |
| 1318 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1319 | exit: |
| 1320 | superio_exit(); |
| 1321 | return err; |
| 1322 | } |
| 1323 | |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1324 | static void it87_remove_files(struct device *dev) |
| 1325 | { |
| 1326 | struct it87_data *data = platform_get_drvdata(pdev); |
| 1327 | struct it87_sio_data *sio_data = dev->platform_data; |
| 1328 | const struct attribute_group *fan_group = it87_get_fan_group(data); |
| 1329 | int i; |
| 1330 | |
| 1331 | sysfs_remove_group(&dev->kobj, &it87_group); |
Jean Delvare | d9b327c | 2010-03-05 22:17:17 +0100 | [diff] [blame^] | 1332 | if (sio_data->beep_pin) |
| 1333 | sysfs_remove_group(&dev->kobj, &it87_group_beep); |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1334 | for (i = 0; i < 5; i++) { |
| 1335 | if (!(data->has_fan & (1 << i))) |
| 1336 | continue; |
| 1337 | sysfs_remove_group(&dev->kobj, &fan_group[i]); |
Jean Delvare | d9b327c | 2010-03-05 22:17:17 +0100 | [diff] [blame^] | 1338 | if (sio_data->beep_pin) |
| 1339 | sysfs_remove_file(&dev->kobj, |
| 1340 | it87_attributes_fan_beep[i]); |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1341 | } |
| 1342 | for (i = 0; i < 3; i++) { |
| 1343 | if (sio_data->skip_pwm & (1 << 0)) |
| 1344 | continue; |
| 1345 | sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]); |
| 1346 | } |
Jean Delvare | 6a8d7ac | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1347 | if (!sio_data->skip_vid) |
| 1348 | sysfs_remove_group(&dev->kobj, &it87_group_vid); |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1349 | } |
| 1350 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1351 | static int __devinit it87_probe(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1352 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1353 | struct it87_data *data; |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1354 | struct resource *res; |
| 1355 | struct device *dev = &pdev->dev; |
| 1356 | struct it87_sio_data *sio_data = dev->platform_data; |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1357 | const struct attribute_group *fan_group; |
| 1358 | int err = 0, i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1359 | int enable_pwm_interface; |
Jean Delvare | d9b327c | 2010-03-05 22:17:17 +0100 | [diff] [blame^] | 1360 | int fan_beep_need_rw; |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1361 | static const char *names[] = { |
| 1362 | "it87", |
| 1363 | "it8712", |
| 1364 | "it8716", |
| 1365 | "it8718", |
Jean-Marc Spaggiari | b4da93e | 2009-01-07 16:37:32 +0100 | [diff] [blame] | 1366 | "it8720", |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1367 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1368 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1369 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); |
Bjorn Helgaas | 87b4b66 | 2008-01-22 07:21:03 -0500 | [diff] [blame] | 1370 | if (!request_region(res->start, IT87_EC_EXTENT, DRVNAME)) { |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1371 | dev_err(dev, "Failed to request region 0x%lx-0x%lx\n", |
| 1372 | (unsigned long)res->start, |
Bjorn Helgaas | 87b4b66 | 2008-01-22 07:21:03 -0500 | [diff] [blame] | 1373 | (unsigned long)(res->start + IT87_EC_EXTENT - 1)); |
Jean Delvare | 8e9afcb | 2006-12-12 18:18:28 +0100 | [diff] [blame] | 1374 | err = -EBUSY; |
| 1375 | goto ERROR0; |
| 1376 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1377 | |
Deepak Saxena | ba9c2e8 | 2005-10-17 23:08:32 +0200 | [diff] [blame] | 1378 | if (!(data = kzalloc(sizeof(struct it87_data), GFP_KERNEL))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1379 | err = -ENOMEM; |
| 1380 | goto ERROR1; |
| 1381 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1382 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1383 | data->addr = res->start; |
| 1384 | data->type = sio_data->type; |
Andrew Paprocki | 0475169 | 2008-08-06 22:41:06 +0200 | [diff] [blame] | 1385 | data->revision = sio_data->revision; |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1386 | data->name = names[sio_data->type]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1387 | |
| 1388 | /* Now, we do the remaining detection. */ |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1389 | if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80) |
| 1390 | || it87_read_value(data, IT87_REG_CHIPID) != 0x90) { |
Jean Delvare | 8e9afcb | 2006-12-12 18:18:28 +0100 | [diff] [blame] | 1391 | err = -ENODEV; |
| 1392 | goto ERROR2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1393 | } |
| 1394 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1395 | platform_set_drvdata(pdev, data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1396 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 1397 | mutex_init(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1398 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1399 | /* Check PWM configuration */ |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1400 | enable_pwm_interface = it87_check_pwm(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1401 | |
| 1402 | /* Initialize the IT87 chip */ |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1403 | it87_init_device(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1404 | |
| 1405 | /* Register sysfs hooks */ |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1406 | if ((err = sysfs_create_group(&dev->kobj, &it87_group))) |
| 1407 | goto ERROR2; |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 1408 | |
Jean Delvare | d9b327c | 2010-03-05 22:17:17 +0100 | [diff] [blame^] | 1409 | if (sio_data->beep_pin) { |
| 1410 | err = sysfs_create_group(&dev->kobj, &it87_group_beep); |
| 1411 | if (err) |
| 1412 | goto ERROR4; |
| 1413 | } |
| 1414 | |
Jean Delvare | 9060f8b | 2006-08-28 14:24:17 +0200 | [diff] [blame] | 1415 | /* Do not create fan files for disabled fans */ |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1416 | fan_group = it87_get_fan_group(data); |
Jean Delvare | d9b327c | 2010-03-05 22:17:17 +0100 | [diff] [blame^] | 1417 | fan_beep_need_rw = 1; |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1418 | for (i = 0; i < 5; i++) { |
| 1419 | if (!(data->has_fan & (1 << i))) |
| 1420 | continue; |
| 1421 | err = sysfs_create_group(&dev->kobj, &fan_group[i]); |
| 1422 | if (err) |
| 1423 | goto ERROR4; |
Jean Delvare | d9b327c | 2010-03-05 22:17:17 +0100 | [diff] [blame^] | 1424 | |
| 1425 | if (sio_data->beep_pin) { |
| 1426 | err = sysfs_create_file(&dev->kobj, |
| 1427 | it87_attributes_fan_beep[i]); |
| 1428 | if (err) |
| 1429 | goto ERROR4; |
| 1430 | if (!fan_beep_need_rw) |
| 1431 | continue; |
| 1432 | |
| 1433 | /* As we have a single beep enable bit for all fans, |
| 1434 | * only the first enabled fan has a writable attribute |
| 1435 | * for it. */ |
| 1436 | if (sysfs_chmod_file(&dev->kobj, |
| 1437 | it87_attributes_fan_beep[i], |
| 1438 | S_IRUGO | S_IWUSR)) |
| 1439 | dev_dbg(dev, "chmod +w fan%d_beep failed\n", |
| 1440 | i + 1); |
| 1441 | fan_beep_need_rw = 0; |
| 1442 | } |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 1443 | } |
| 1444 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1445 | if (enable_pwm_interface) { |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1446 | for (i = 0; i < 3; i++) { |
| 1447 | if (sio_data->skip_pwm & (1 << i)) |
| 1448 | continue; |
| 1449 | err = sysfs_create_group(&dev->kobj, |
| 1450 | &it87_group_pwm[i]); |
| 1451 | if (err) |
Jean Delvare | 98dd22c | 2008-10-09 15:33:58 +0200 | [diff] [blame] | 1452 | goto ERROR4; |
| 1453 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1454 | } |
| 1455 | |
Jean Delvare | 895ff26 | 2009-12-09 20:35:47 +0100 | [diff] [blame] | 1456 | if (!sio_data->skip_vid) { |
Jean Delvare | 303760b | 2005-07-31 21:52:01 +0200 | [diff] [blame] | 1457 | data->vrm = vid_which_vrm(); |
Jean Delvare | 87673dd | 2006-08-28 14:37:19 +0200 | [diff] [blame] | 1458 | /* VID reading from Super-I/O config space if available */ |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1459 | data->vid = sio_data->vid_value; |
Jean Delvare | 6a8d7ac | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1460 | err = sysfs_create_group(&dev->kobj, &it87_group_vid); |
| 1461 | if (err) |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1462 | goto ERROR4; |
| 1463 | } |
| 1464 | |
Tony Jones | 1beeffe | 2007-08-20 13:46:20 -0700 | [diff] [blame] | 1465 | data->hwmon_dev = hwmon_device_register(dev); |
| 1466 | if (IS_ERR(data->hwmon_dev)) { |
| 1467 | err = PTR_ERR(data->hwmon_dev); |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1468 | goto ERROR4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1469 | } |
| 1470 | |
| 1471 | return 0; |
| 1472 | |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 1473 | ERROR4: |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1474 | it87_remove_files(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1475 | ERROR2: |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1476 | platform_set_drvdata(pdev, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1477 | kfree(data); |
| 1478 | ERROR1: |
Bjorn Helgaas | 87b4b66 | 2008-01-22 07:21:03 -0500 | [diff] [blame] | 1479 | release_region(res->start, IT87_EC_EXTENT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1480 | ERROR0: |
| 1481 | return err; |
| 1482 | } |
| 1483 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1484 | static int __devexit it87_remove(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1485 | { |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1486 | struct it87_data *data = platform_get_drvdata(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1487 | |
Tony Jones | 1beeffe | 2007-08-20 13:46:20 -0700 | [diff] [blame] | 1488 | hwmon_device_unregister(data->hwmon_dev); |
Jean Delvare | 723a0aa | 2010-03-05 22:17:16 +0100 | [diff] [blame] | 1489 | it87_remove_files(&pdev->dev); |
Mark M. Hoffman | 943b083 | 2005-07-15 21:39:18 -0400 | [diff] [blame] | 1490 | |
Bjorn Helgaas | 87b4b66 | 2008-01-22 07:21:03 -0500 | [diff] [blame] | 1491 | release_region(data->addr, IT87_EC_EXTENT); |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1492 | platform_set_drvdata(pdev, NULL); |
Mark M. Hoffman | 943b083 | 2005-07-15 21:39:18 -0400 | [diff] [blame] | 1493 | kfree(data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1494 | |
| 1495 | return 0; |
| 1496 | } |
| 1497 | |
Jean Delvare | 7f999aa | 2007-02-14 21:15:03 +0100 | [diff] [blame] | 1498 | /* Must be called with data->update_lock held, except during initialization. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1499 | We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, |
| 1500 | would slow down the IT87 access and should not be necessary. */ |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1501 | static int it87_read_value(struct it87_data *data, u8 reg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1502 | { |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1503 | outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET); |
| 1504 | return inb_p(data->addr + IT87_DATA_REG_OFFSET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1505 | } |
| 1506 | |
Jean Delvare | 7f999aa | 2007-02-14 21:15:03 +0100 | [diff] [blame] | 1507 | /* Must be called with data->update_lock held, except during initialization. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1508 | We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, |
| 1509 | would slow down the IT87 access and should not be necessary. */ |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1510 | static void it87_write_value(struct it87_data *data, u8 reg, u8 value) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1511 | { |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1512 | outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET); |
| 1513 | outb_p(value, data->addr + IT87_DATA_REG_OFFSET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1514 | } |
| 1515 | |
| 1516 | /* Return 1 if and only if the PWM interface is safe to use */ |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1517 | static int __devinit it87_check_pwm(struct device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1518 | { |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1519 | struct it87_data *data = dev_get_drvdata(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1520 | /* Some BIOSes fail to correctly configure the IT87 fans. All fans off |
| 1521 | * and polarity set to active low is sign that this is the case so we |
| 1522 | * disable pwm control to protect the user. */ |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1523 | int tmp = it87_read_value(data, IT87_REG_FAN_CTL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1524 | if ((tmp & 0x87) == 0) { |
| 1525 | if (fix_pwm_polarity) { |
| 1526 | /* The user asks us to attempt a chip reconfiguration. |
| 1527 | * This means switching to active high polarity and |
| 1528 | * inverting all fan speed values. */ |
| 1529 | int i; |
| 1530 | u8 pwm[3]; |
| 1531 | |
| 1532 | for (i = 0; i < 3; i++) |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1533 | pwm[i] = it87_read_value(data, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1534 | IT87_REG_PWM(i)); |
| 1535 | |
| 1536 | /* If any fan is in automatic pwm mode, the polarity |
| 1537 | * might be correct, as suspicious as it seems, so we |
| 1538 | * better don't change anything (but still disable the |
| 1539 | * PWM interface). */ |
| 1540 | if (!((pwm[0] | pwm[1] | pwm[2]) & 0x80)) { |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1541 | dev_info(dev, "Reconfiguring PWM to " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1542 | "active high polarity\n"); |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1543 | it87_write_value(data, IT87_REG_FAN_CTL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1544 | tmp | 0x87); |
| 1545 | for (i = 0; i < 3; i++) |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1546 | it87_write_value(data, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1547 | IT87_REG_PWM(i), |
| 1548 | 0x7f & ~pwm[i]); |
| 1549 | return 1; |
| 1550 | } |
| 1551 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1552 | dev_info(dev, "PWM configuration is " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1553 | "too broken to be fixed\n"); |
| 1554 | } |
| 1555 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1556 | dev_info(dev, "Detected broken BIOS " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1557 | "defaults, disabling PWM interface\n"); |
| 1558 | return 0; |
| 1559 | } else if (fix_pwm_polarity) { |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1560 | dev_info(dev, "PWM configuration looks " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1561 | "sane, won't touch\n"); |
| 1562 | } |
| 1563 | |
| 1564 | return 1; |
| 1565 | } |
| 1566 | |
| 1567 | /* Called when we have found a new IT87. */ |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1568 | static void __devinit it87_init_device(struct platform_device *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1569 | { |
Jean Delvare | 591ec65 | 2009-12-09 20:35:48 +0100 | [diff] [blame] | 1570 | struct it87_sio_data *sio_data = pdev->dev.platform_data; |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1571 | struct it87_data *data = platform_get_drvdata(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1572 | int tmp, i; |
Jean Delvare | 591ec65 | 2009-12-09 20:35:48 +0100 | [diff] [blame] | 1573 | u8 mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1574 | |
Jean Delvare | b99883d | 2010-03-05 22:17:15 +0100 | [diff] [blame] | 1575 | /* For each PWM channel: |
| 1576 | * - If it is in automatic mode, setting to manual mode should set |
| 1577 | * the fan to full speed by default. |
| 1578 | * - If it is in manual mode, we need a mapping to temperature |
| 1579 | * channels to use when later setting to automatic mode later. |
| 1580 | * Use a 1:1 mapping by default (we are clueless.) |
| 1581 | * In both cases, the value can (and should) be changed by the user |
| 1582 | * prior to switching to a different mode. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1583 | for (i = 0; i < 3; i++) { |
Jean Delvare | b99883d | 2010-03-05 22:17:15 +0100 | [diff] [blame] | 1584 | data->pwm_temp_map[i] = i; |
| 1585 | data->pwm_duty[i] = 0x7f; /* Full speed */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1586 | } |
| 1587 | |
Jean Delvare | c5df9b7 | 2006-08-28 14:37:54 +0200 | [diff] [blame] | 1588 | /* Some chips seem to have default value 0xff for all limit |
| 1589 | * registers. For low voltage limits it makes no sense and triggers |
| 1590 | * alarms, so change to 0 instead. For high temperature limits, it |
| 1591 | * means -1 degree C, which surprisingly doesn't trigger an alarm, |
| 1592 | * but is still confusing, so change to 127 degrees C. */ |
| 1593 | for (i = 0; i < 8; i++) { |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1594 | tmp = it87_read_value(data, IT87_REG_VIN_MIN(i)); |
Jean Delvare | c5df9b7 | 2006-08-28 14:37:54 +0200 | [diff] [blame] | 1595 | if (tmp == 0xff) |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1596 | it87_write_value(data, IT87_REG_VIN_MIN(i), 0); |
Jean Delvare | c5df9b7 | 2006-08-28 14:37:54 +0200 | [diff] [blame] | 1597 | } |
| 1598 | for (i = 0; i < 3; i++) { |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1599 | tmp = it87_read_value(data, IT87_REG_TEMP_HIGH(i)); |
Jean Delvare | c5df9b7 | 2006-08-28 14:37:54 +0200 | [diff] [blame] | 1600 | if (tmp == 0xff) |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1601 | it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127); |
Jean Delvare | c5df9b7 | 2006-08-28 14:37:54 +0200 | [diff] [blame] | 1602 | } |
| 1603 | |
Jean Delvare | 77fa49d | 2009-01-07 16:37:35 +0100 | [diff] [blame] | 1604 | /* Check if temperature channels are reset manually or by some reason */ |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1605 | tmp = it87_read_value(data, IT87_REG_TEMP_ENABLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1606 | if ((tmp & 0x3f) == 0) { |
| 1607 | /* Temp1,Temp3=thermistor; Temp2=thermal diode */ |
| 1608 | tmp = (tmp & 0xc0) | 0x2a; |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1609 | it87_write_value(data, IT87_REG_TEMP_ENABLE, tmp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1610 | } |
| 1611 | data->sensor = tmp; |
| 1612 | |
| 1613 | /* Check if voltage monitors are reset manually or by some reason */ |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1614 | tmp = it87_read_value(data, IT87_REG_VIN_ENABLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1615 | if ((tmp & 0xff) == 0) { |
| 1616 | /* Enable all voltage monitors */ |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1617 | it87_write_value(data, IT87_REG_VIN_ENABLE, 0xff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1618 | } |
| 1619 | |
| 1620 | /* Check if tachometers are reset manually or by some reason */ |
Jean Delvare | 591ec65 | 2009-12-09 20:35:48 +0100 | [diff] [blame] | 1621 | mask = 0x70 & ~(sio_data->skip_fan << 4); |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1622 | data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL); |
Jean Delvare | 591ec65 | 2009-12-09 20:35:48 +0100 | [diff] [blame] | 1623 | if ((data->fan_main_ctrl & mask) == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1624 | /* Enable all fan tachometers */ |
Jean Delvare | 591ec65 | 2009-12-09 20:35:48 +0100 | [diff] [blame] | 1625 | data->fan_main_ctrl |= mask; |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1626 | it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1627 | } |
Jean Delvare | 9060f8b | 2006-08-28 14:24:17 +0200 | [diff] [blame] | 1628 | data->has_fan = (data->fan_main_ctrl >> 4) & 0x07; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1629 | |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 1630 | /* Set tachometers to 16-bit mode if needed */ |
Andrew Paprocki | 0475169 | 2008-08-06 22:41:06 +0200 | [diff] [blame] | 1631 | if (has_16bit_fans(data)) { |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1632 | tmp = it87_read_value(data, IT87_REG_FAN_16BIT); |
Jean Delvare | 9060f8b | 2006-08-28 14:24:17 +0200 | [diff] [blame] | 1633 | if (~tmp & 0x07 & data->has_fan) { |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1634 | dev_dbg(&pdev->dev, |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 1635 | "Setting fan1-3 to 16-bit mode\n"); |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1636 | it87_write_value(data, IT87_REG_FAN_16BIT, |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 1637 | tmp | 0x07); |
| 1638 | } |
Andrew Paprocki | 816d8c6 | 2008-08-06 22:41:06 +0200 | [diff] [blame] | 1639 | /* IT8705F only supports three fans. */ |
| 1640 | if (data->type != it87) { |
| 1641 | if (tmp & (1 << 4)) |
| 1642 | data->has_fan |= (1 << 3); /* fan4 enabled */ |
| 1643 | if (tmp & (1 << 5)) |
| 1644 | data->has_fan |= (1 << 4); /* fan5 enabled */ |
| 1645 | } |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 1646 | } |
| 1647 | |
Jean Delvare | 591ec65 | 2009-12-09 20:35:48 +0100 | [diff] [blame] | 1648 | /* Fan input pins may be used for alternative functions */ |
| 1649 | data->has_fan &= ~sio_data->skip_fan; |
| 1650 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1651 | /* Start monitoring */ |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1652 | it87_write_value(data, IT87_REG_CONFIG, |
| 1653 | (it87_read_value(data, IT87_REG_CONFIG) & 0x36) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1654 | | (update_vbat ? 0x41 : 0x01)); |
| 1655 | } |
| 1656 | |
Jean Delvare | b99883d | 2010-03-05 22:17:15 +0100 | [diff] [blame] | 1657 | static void it87_update_pwm_ctrl(struct it87_data *data, int nr) |
| 1658 | { |
| 1659 | data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM(nr)); |
| 1660 | if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ |
| 1661 | data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03; |
| 1662 | else /* Manual mode */ |
| 1663 | data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f; |
| 1664 | } |
| 1665 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1666 | static struct it87_data *it87_update_device(struct device *dev) |
| 1667 | { |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1668 | struct it87_data *data = dev_get_drvdata(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1669 | int i; |
| 1670 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 1671 | mutex_lock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1672 | |
| 1673 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) |
| 1674 | || !data->valid) { |
| 1675 | |
| 1676 | if (update_vbat) { |
| 1677 | /* Cleared after each update, so reenable. Value |
| 1678 | returned by this read will be previous value */ |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1679 | it87_write_value(data, IT87_REG_CONFIG, |
| 1680 | it87_read_value(data, IT87_REG_CONFIG) | 0x40); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1681 | } |
| 1682 | for (i = 0; i <= 7; i++) { |
| 1683 | data->in[i] = |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1684 | it87_read_value(data, IT87_REG_VIN(i)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1685 | data->in_min[i] = |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1686 | it87_read_value(data, IT87_REG_VIN_MIN(i)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1687 | data->in_max[i] = |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1688 | it87_read_value(data, IT87_REG_VIN_MAX(i)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1689 | } |
Jean Delvare | 3543a53 | 2006-08-28 14:27:25 +0200 | [diff] [blame] | 1690 | /* in8 (battery) has no limit registers */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1691 | data->in[8] = |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1692 | it87_read_value(data, IT87_REG_VIN(8)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1693 | |
Jean Delvare | c7f1f71 | 2007-09-03 17:11:46 +0200 | [diff] [blame] | 1694 | for (i = 0; i < 5; i++) { |
Jean Delvare | 9060f8b | 2006-08-28 14:24:17 +0200 | [diff] [blame] | 1695 | /* Skip disabled fans */ |
| 1696 | if (!(data->has_fan & (1 << i))) |
| 1697 | continue; |
| 1698 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1699 | data->fan_min[i] = |
Jean Delvare | c7f1f71 | 2007-09-03 17:11:46 +0200 | [diff] [blame] | 1700 | it87_read_value(data, IT87_REG_FAN_MIN[i]); |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1701 | data->fan[i] = it87_read_value(data, |
Jean Delvare | c7f1f71 | 2007-09-03 17:11:46 +0200 | [diff] [blame] | 1702 | IT87_REG_FAN[i]); |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 1703 | /* Add high byte if in 16-bit mode */ |
Andrew Paprocki | 0475169 | 2008-08-06 22:41:06 +0200 | [diff] [blame] | 1704 | if (has_16bit_fans(data)) { |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1705 | data->fan[i] |= it87_read_value(data, |
Jean Delvare | c7f1f71 | 2007-09-03 17:11:46 +0200 | [diff] [blame] | 1706 | IT87_REG_FANX[i]) << 8; |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1707 | data->fan_min[i] |= it87_read_value(data, |
Jean Delvare | c7f1f71 | 2007-09-03 17:11:46 +0200 | [diff] [blame] | 1708 | IT87_REG_FANX_MIN[i]) << 8; |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 1709 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1710 | } |
| 1711 | for (i = 0; i < 3; i++) { |
| 1712 | data->temp[i] = |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1713 | it87_read_value(data, IT87_REG_TEMP(i)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1714 | data->temp_high[i] = |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1715 | it87_read_value(data, IT87_REG_TEMP_HIGH(i)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1716 | data->temp_low[i] = |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1717 | it87_read_value(data, IT87_REG_TEMP_LOW(i)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1718 | } |
| 1719 | |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 1720 | /* Newer chips don't have clock dividers */ |
Andrew Paprocki | 0475169 | 2008-08-06 22:41:06 +0200 | [diff] [blame] | 1721 | if ((data->has_fan & 0x07) && !has_16bit_fans(data)) { |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1722 | i = it87_read_value(data, IT87_REG_FAN_DIV); |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 1723 | data->fan_div[0] = i & 0x07; |
| 1724 | data->fan_div[1] = (i >> 3) & 0x07; |
| 1725 | data->fan_div[2] = (i & 0x40) ? 3 : 1; |
| 1726 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1727 | |
| 1728 | data->alarms = |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1729 | it87_read_value(data, IT87_REG_ALARM1) | |
| 1730 | (it87_read_value(data, IT87_REG_ALARM2) << 8) | |
| 1731 | (it87_read_value(data, IT87_REG_ALARM3) << 16); |
Jean Delvare | d9b327c | 2010-03-05 22:17:17 +0100 | [diff] [blame^] | 1732 | data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); |
Jean Delvare | b99883d | 2010-03-05 22:17:15 +0100 | [diff] [blame] | 1733 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1734 | data->fan_main_ctrl = it87_read_value(data, |
| 1735 | IT87_REG_FAN_MAIN_CTRL); |
| 1736 | data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL); |
Jean Delvare | b99883d | 2010-03-05 22:17:15 +0100 | [diff] [blame] | 1737 | for (i = 0; i < 3; i++) |
| 1738 | it87_update_pwm_ctrl(data, i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1739 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1740 | data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE); |
Andrew Paprocki | 0475169 | 2008-08-06 22:41:06 +0200 | [diff] [blame] | 1741 | /* The 8705 does not have VID capability. |
Jean-Marc Spaggiari | b4da93e | 2009-01-07 16:37:32 +0100 | [diff] [blame] | 1742 | The 8718 and the 8720 don't use IT87_REG_VID for the |
| 1743 | same purpose. */ |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 1744 | if (data->type == it8712 || data->type == it8716) { |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1745 | data->vid = it87_read_value(data, IT87_REG_VID); |
Jean Delvare | 17d648b | 2006-08-28 14:23:46 +0200 | [diff] [blame] | 1746 | /* The older IT8712F revisions had only 5 VID pins, |
| 1747 | but we assume it is always safe to read 6 bits. */ |
| 1748 | data->vid &= 0x3f; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1749 | } |
| 1750 | data->last_updated = jiffies; |
| 1751 | data->valid = 1; |
| 1752 | } |
| 1753 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 1754 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1755 | |
| 1756 | return data; |
| 1757 | } |
| 1758 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1759 | static int __init it87_device_add(unsigned short address, |
| 1760 | const struct it87_sio_data *sio_data) |
| 1761 | { |
| 1762 | struct resource res = { |
Bjorn Helgaas | 87b4b66 | 2008-01-22 07:21:03 -0500 | [diff] [blame] | 1763 | .start = address + IT87_EC_OFFSET, |
| 1764 | .end = address + IT87_EC_OFFSET + IT87_EC_EXTENT - 1, |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1765 | .name = DRVNAME, |
| 1766 | .flags = IORESOURCE_IO, |
| 1767 | }; |
| 1768 | int err; |
| 1769 | |
Jean Delvare | b9acb64 | 2009-01-07 16:37:35 +0100 | [diff] [blame] | 1770 | err = acpi_check_resource_conflict(&res); |
| 1771 | if (err) |
| 1772 | goto exit; |
| 1773 | |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1774 | pdev = platform_device_alloc(DRVNAME, address); |
| 1775 | if (!pdev) { |
| 1776 | err = -ENOMEM; |
| 1777 | printk(KERN_ERR DRVNAME ": Device allocation failed\n"); |
| 1778 | goto exit; |
| 1779 | } |
| 1780 | |
| 1781 | err = platform_device_add_resources(pdev, &res, 1); |
| 1782 | if (err) { |
| 1783 | printk(KERN_ERR DRVNAME ": Device resource addition failed " |
| 1784 | "(%d)\n", err); |
| 1785 | goto exit_device_put; |
| 1786 | } |
| 1787 | |
| 1788 | err = platform_device_add_data(pdev, sio_data, |
| 1789 | sizeof(struct it87_sio_data)); |
| 1790 | if (err) { |
| 1791 | printk(KERN_ERR DRVNAME ": Platform data allocation failed\n"); |
| 1792 | goto exit_device_put; |
| 1793 | } |
| 1794 | |
| 1795 | err = platform_device_add(pdev); |
| 1796 | if (err) { |
| 1797 | printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n", |
| 1798 | err); |
| 1799 | goto exit_device_put; |
| 1800 | } |
| 1801 | |
| 1802 | return 0; |
| 1803 | |
| 1804 | exit_device_put: |
| 1805 | platform_device_put(pdev); |
| 1806 | exit: |
| 1807 | return err; |
| 1808 | } |
| 1809 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1810 | static int __init sm_it87_init(void) |
| 1811 | { |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1812 | int err; |
| 1813 | unsigned short isa_address=0; |
| 1814 | struct it87_sio_data sio_data; |
Jean Delvare | fde0950 | 2005-07-19 23:51:07 +0200 | [diff] [blame] | 1815 | |
Jean Delvare | 98dd22c | 2008-10-09 15:33:58 +0200 | [diff] [blame] | 1816 | memset(&sio_data, 0, sizeof(struct it87_sio_data)); |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1817 | err = it87_find(&isa_address, &sio_data); |
| 1818 | if (err) |
| 1819 | return err; |
| 1820 | err = platform_driver_register(&it87_driver); |
| 1821 | if (err) |
| 1822 | return err; |
| 1823 | |
| 1824 | err = it87_device_add(isa_address, &sio_data); |
| 1825 | if (err){ |
| 1826 | platform_driver_unregister(&it87_driver); |
| 1827 | return err; |
| 1828 | } |
| 1829 | |
| 1830 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1831 | } |
| 1832 | |
| 1833 | static void __exit sm_it87_exit(void) |
| 1834 | { |
corentin.labbe | b74f3fd | 2007-06-13 20:27:36 +0200 | [diff] [blame] | 1835 | platform_device_unregister(pdev); |
| 1836 | platform_driver_unregister(&it87_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1837 | } |
| 1838 | |
| 1839 | |
Jean Delvare | f1d8e33 | 2007-11-25 16:14:44 +0100 | [diff] [blame] | 1840 | MODULE_AUTHOR("Chris Gauthron, " |
Jean Delvare | b19367c | 2006-08-28 14:39:26 +0200 | [diff] [blame] | 1841 | "Jean Delvare <khali@linux-fr.org>"); |
Jean-Marc Spaggiari | b4da93e | 2009-01-07 16:37:32 +0100 | [diff] [blame] | 1842 | MODULE_DESCRIPTION("IT8705F/8712F/8716F/8718F/8720F/8726F, SiS950 driver"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1843 | module_param(update_vbat, bool, 0); |
| 1844 | MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value"); |
| 1845 | module_param(fix_pwm_polarity, bool, 0); |
| 1846 | MODULE_PARM_DESC(fix_pwm_polarity, "Force PWM polarity to active high (DANGEROUS)"); |
| 1847 | MODULE_LICENSE("GPL"); |
| 1848 | |
| 1849 | module_init(sm_it87_init); |
| 1850 | module_exit(sm_it87_exit); |