git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| ab41319e JH |
1 | /* |
| 2 | * vt1211.c - driver for the VIA VT1211 Super-I/O chip integrated hardware | |
| 3 | * monitoring features | |
| 4 | * Copyright (C) 2006 Juerg Haefliger <juergh@gmail.com> | |
| 5 | * | |
| 6 | * This driver is based on the driver for kernel 2.4 by Mark D. Studebaker | |
| 7 | * and its port to kernel 2.6 by Lars Ekman. | |
| 8 | * | |
| 9 | * This program is free software; you can redistribute it and/or modify | |
| 10 | * it under the terms of the GNU General Public License as published by | |
| 11 | * the Free Software Foundation; either version 2 of the License, or | |
| 12 | * (at your option) any later version. | |
| 13 | * | |
| 14 | * This program is distributed in the hope that it will be useful, | |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 | * GNU General Public License for more details. | |
| 18 | * | |
| 19 | * You should have received a copy of the GNU General Public License | |
| 20 | * along with this program; if not, write to the Free Software | |
| 21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
| 22 | */ | |
| 23 | ||
| 24 | #include <linux/module.h> | |
| 25 | #include <linux/init.h> | |
| 26 | #include <linux/slab.h> | |
| 27 | #include <linux/jiffies.h> | |
| 28 | #include <linux/platform_device.h> | |
| 29 | #include <linux/hwmon.h> | |
| 30 | #include <linux/hwmon-sysfs.h> | |
| 31 | #include <linux/hwmon-vid.h> | |
| 32 | #include <linux/err.h> | |
| 33 | #include <linux/mutex.h> | |
| ce7ee4e8 | 34 | #include <linux/ioport.h> |
| b9acb64a | 35 | #include <linux/acpi.h> |
| 6055fae8 | 36 | #include <linux/io.h> |
| ab41319e JH |
37 | |
| 38 | static int uch_config = -1; | |
| 39 | module_param(uch_config, int, 0); | |
| 40 | MODULE_PARM_DESC(uch_config, "Initialize the universal channel configuration"); | |
| 41 | ||
| 42 | static int int_mode = -1; | |
| 43 | module_param(int_mode, int, 0); | |
| 44 | MODULE_PARM_DESC(int_mode, "Force the temperature interrupt mode"); | |
| 45 | ||
| 67b671bc JD |
46 | static unsigned short force_id; |
| 47 | module_param(force_id, ushort, 0); | |
| 48 | MODULE_PARM_DESC(force_id, "Override the detected device ID"); | |
| 49 | ||
| ab41319e JH |
50 | static struct platform_device *pdev; |
| 51 | ||
| 52 | #define DRVNAME "vt1211" | |
| 53 | ||
| 54 | /* --------------------------------------------------------------------- | |
| 55 | * Registers | |
| 56 | * | |
| 57 | * The sensors are defined as follows. | |
| 58 | * | |
| 59 | * Sensor Voltage Mode Temp Mode Notes (from the datasheet) | |
| 60 | * -------- ------------ --------- -------------------------- | |
| 61 | * Reading 1 temp1 Intel thermal diode | |
| 62 | * Reading 3 temp2 Internal thermal diode | |
| 63 | * UCH1/Reading2 in0 temp3 NTC type thermistor | |
| 64 | * UCH2 in1 temp4 +2.5V | |
| 65 | * UCH3 in2 temp5 VccP | |
| 66 | * UCH4 in3 temp6 +5V | |
| 67 | * UCH5 in4 temp7 +12V | |
| 68 | * 3.3V in5 Internal VDD (+3.3V) | |
| 69 | * | |
| 70 | * --------------------------------------------------------------------- */ | |
| 71 | ||
| 72 | /* Voltages (in) numbered 0-5 (ix) */ | |
| 73 | #define VT1211_REG_IN(ix) (0x21 + (ix)) | |
| 74 | #define VT1211_REG_IN_MIN(ix) ((ix) == 0 ? 0x3e : 0x2a + 2 * (ix)) | |
| 75 | #define VT1211_REG_IN_MAX(ix) ((ix) == 0 ? 0x3d : 0x29 + 2 * (ix)) | |
| 76 | ||
| 77 | /* Temperatures (temp) numbered 0-6 (ix) */ | |
| 78 | static u8 regtemp[] = {0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25}; | |
| 79 | static u8 regtempmax[] = {0x39, 0x1d, 0x3d, 0x2b, 0x2d, 0x2f, 0x31}; | |
| 80 | static u8 regtemphyst[] = {0x3a, 0x1e, 0x3e, 0x2c, 0x2e, 0x30, 0x32}; | |
| 81 | ||
| 82 | /* Fans numbered 0-1 (ix) */ | |
| 83 | #define VT1211_REG_FAN(ix) (0x29 + (ix)) | |
| 84 | #define VT1211_REG_FAN_MIN(ix) (0x3b + (ix)) | |
| 85 | #define VT1211_REG_FAN_DIV 0x47 | |
| 86 | ||
| 87 | /* PWMs numbered 0-1 (ix) */ | |
| 88 | /* Auto points numbered 0-3 (ap) */ | |
| 89 | #define VT1211_REG_PWM(ix) (0x60 + (ix)) | |
| 90 | #define VT1211_REG_PWM_CLK 0x50 | |
| 91 | #define VT1211_REG_PWM_CTL 0x51 | |
| 92 | #define VT1211_REG_PWM_AUTO_TEMP(ap) (0x55 - (ap)) | |
| 93 | #define VT1211_REG_PWM_AUTO_PWM(ix, ap) (0x58 + 2 * (ix) - (ap)) | |
| 94 | ||
| 95 | /* Miscellaneous registers */ | |
| 96 | #define VT1211_REG_CONFIG 0x40 | |
| 97 | #define VT1211_REG_ALARM1 0x41 | |
| 98 | #define VT1211_REG_ALARM2 0x42 | |
| 99 | #define VT1211_REG_VID 0x45 | |
| 100 | #define VT1211_REG_UCH_CONFIG 0x4a | |
| 101 | #define VT1211_REG_TEMP1_CONFIG 0x4b | |
| 102 | #define VT1211_REG_TEMP2_CONFIG 0x4c | |
| 103 | ||
| 104 | /* In, temp & fan alarm bits */ | |
| 105 | static const u8 bitalarmin[] = {11, 0, 1, 3, 8, 2, 9}; | |
| 106 | static const u8 bitalarmtemp[] = {4, 15, 11, 0, 1, 3, 8}; | |
| 107 | static const u8 bitalarmfan[] = {6, 7}; | |
| 108 | ||
| 109 | /* --------------------------------------------------------------------- | |
| 110 | * Data structures and manipulation thereof | |
| 111 | * --------------------------------------------------------------------- */ | |
| 112 | ||
| 113 | struct vt1211_data { | |
| 114 | unsigned short addr; | |
| 115 | const char *name; | |
| 1beeffe4 | 116 | struct device *hwmon_dev; |
| ab41319e JH |
117 | |
| 118 | struct mutex update_lock; | |
| 119 | char valid; /* !=0 if following fields are valid */ | |
| 120 | unsigned long last_updated; /* In jiffies */ | |
| 121 | ||
| 122 | /* Register values */ | |
| 123 | u8 in[6]; | |
| 124 | u8 in_max[6]; | |
| 125 | u8 in_min[6]; | |
| 126 | u8 temp[7]; | |
| 127 | u8 temp_max[7]; | |
| 128 | u8 temp_hyst[7]; | |
| 129 | u8 fan[2]; | |
| 130 | u8 fan_min[2]; | |
| 131 | u8 fan_div[2]; | |
| 132 | u8 fan_ctl; | |
| 133 | u8 pwm[2]; | |
| 134 | u8 pwm_ctl[2]; | |
| 135 | u8 pwm_clk; | |
| 136 | u8 pwm_auto_temp[4]; | |
| 137 | u8 pwm_auto_pwm[2][4]; | |
| 138 | u8 vid; /* Read once at init time */ | |
| 139 | u8 vrm; | |
| 140 | u8 uch_config; /* Read once at init time */ | |
| 141 | u16 alarms; | |
| 142 | }; | |
| 143 | ||
| 144 | /* ix = [0-5] */ | |
| 145 | #define ISVOLT(ix, uch_config) ((ix) > 4 ? 1 : \ | |
| 146 | !(((uch_config) >> ((ix) + 2)) & 1)) | |
| 147 | ||
| 148 | /* ix = [0-6] */ | |
| 149 | #define ISTEMP(ix, uch_config) ((ix) < 2 ? 1 : \ | |
| 150 | ((uch_config) >> (ix)) & 1) | |
| 151 | ||
| 152 | /* in5 (ix = 5) is special. It's the internal 3.3V so it's scaled in the | |
| 153 | driver according to the VT1211 BIOS porting guide */ | |
| 154 | #define IN_FROM_REG(ix, reg) ((reg) < 3 ? 0 : (ix) == 5 ? \ | |
| 155 | (((reg) - 3) * 15882 + 479) / 958 : \ | |
| 156 | (((reg) - 3) * 10000 + 479) / 958) | |
| 157 | #define IN_TO_REG(ix, val) (SENSORS_LIMIT((ix) == 5 ? \ | |
| 158 | ((val) * 958 + 7941) / 15882 + 3 : \ | |
| 159 | ((val) * 958 + 5000) / 10000 + 3, 0, 255)) | |
| 160 | ||
| 161 | /* temp1 (ix = 0) is an intel thermal diode which is scaled in user space. | |
| 162 | temp2 (ix = 1) is the internal temp diode so it's scaled in the driver | |
| 163 | according to some measurements that I took on an EPIA M10000. | |
| 164 | temp3-7 are thermistor based so the driver returns the voltage measured at | |
| 165 | the pin (range 0V - 2.2V). */ | |
| 166 | #define TEMP_FROM_REG(ix, reg) ((ix) == 0 ? (reg) * 1000 : \ | |
| 167 | (ix) == 1 ? (reg) < 51 ? 0 : \ | |
| 168 | ((reg) - 51) * 1000 : \ | |
| 169 | ((253 - (reg)) * 2200 + 105) / 210) | |
| 170 | #define TEMP_TO_REG(ix, val) SENSORS_LIMIT( \ | |
| 171 | ((ix) == 0 ? ((val) + 500) / 1000 : \ | |
| 172 | (ix) == 1 ? ((val) + 500) / 1000 + 51 : \ | |
| 173 | 253 - ((val) * 210 + 1100) / 2200), 0, 255) | |
| 174 | ||
| 175 | #define DIV_FROM_REG(reg) (1 << (reg)) | |
| 176 | ||
| 177 | #define RPM_FROM_REG(reg, div) (((reg) == 0) || ((reg) == 255) ? 0 : \ | |
| 178 | 1310720 / (reg) / DIV_FROM_REG(div)) | |
| 179 | #define RPM_TO_REG(val, div) ((val) == 0 ? 255 : \ | |
| 180 | SENSORS_LIMIT((1310720 / (val) / \ | |
| 181 | DIV_FROM_REG(div)), 1, 254)) | |
| 182 | ||
| 183 | /* --------------------------------------------------------------------- | |
| 184 | * Super-I/O constants and functions | |
| 185 | * --------------------------------------------------------------------- */ | |
| 186 | ||
| 2219cd81 JH |
187 | /* Configuration index port registers |
| 188 | * The vt1211 can live at 2 different addresses so we need to probe both */ | |
| 189 | #define SIO_REG_CIP1 0x2e | |
| 190 | #define SIO_REG_CIP2 0x4e | |
| ab41319e JH |
191 | |
| 192 | /* Configuration registers */ | |
| 193 | #define SIO_VT1211_LDN 0x07 /* logical device number */ | |
| 194 | #define SIO_VT1211_DEVID 0x20 /* device ID */ | |
| 195 | #define SIO_VT1211_DEVREV 0x21 /* device revision */ | |
| 196 | #define SIO_VT1211_ACTIVE 0x30 /* HW monitor active */ | |
| 197 | #define SIO_VT1211_BADDR 0x60 /* base I/O address */ | |
| 198 | #define SIO_VT1211_ID 0x3c /* VT1211 device ID */ | |
| 199 | ||
| 200 | /* VT1211 logical device numbers */ | |
| 201 | #define SIO_VT1211_LDN_HWMON 0x0b /* HW monitor */ | |
| 202 | ||
| 2219cd81 | 203 | static inline void superio_outb(int sio_cip, int reg, int val) |
| ab41319e | 204 | { |
| 2219cd81 JH |
205 | outb(reg, sio_cip); |
| 206 | outb(val, sio_cip + 1); | |
| ab41319e JH |
207 | } |
| 208 | ||
| 2219cd81 | 209 | static inline int superio_inb(int sio_cip, int reg) |
| ab41319e | 210 | { |
| 2219cd81 JH |
211 | outb(reg, sio_cip); |
| 212 | return inb(sio_cip + 1); | |
| ab41319e JH |
213 | } |
| 214 | ||
| 2219cd81 | 215 | static inline void superio_select(int sio_cip, int ldn) |
| ab41319e | 216 | { |
| 2219cd81 JH |
217 | outb(SIO_VT1211_LDN, sio_cip); |
| 218 | outb(ldn, sio_cip + 1); | |
| ab41319e JH |
219 | } |
| 220 | ||
| 2219cd81 | 221 | static inline void superio_enter(int sio_cip) |
| ab41319e | 222 | { |
| 2219cd81 JH |
223 | outb(0x87, sio_cip); |
| 224 | outb(0x87, sio_cip); | |
| ab41319e JH |
225 | } |
| 226 | ||
| 2219cd81 | 227 | static inline void superio_exit(int sio_cip) |
| ab41319e | 228 | { |
| 2219cd81 | 229 | outb(0xaa, sio_cip); |
| ab41319e JH |
230 | } |
| 231 | ||
| 232 | /* --------------------------------------------------------------------- | |
| 233 | * Device I/O access | |
| 234 | * --------------------------------------------------------------------- */ | |
| 235 | ||
| 236 | static inline u8 vt1211_read8(struct vt1211_data *data, u8 reg) | |
| 237 | { | |
| 238 | return inb(data->addr + reg); | |
| 239 | } | |
| 240 | ||
| 241 | static inline void vt1211_write8(struct vt1211_data *data, u8 reg, u8 val) | |
| 242 | { | |
| 243 | outb(val, data->addr + reg); | |
| 244 | } | |
| 245 | ||
| 246 | static struct vt1211_data *vt1211_update_device(struct device *dev) | |
| 247 | { | |
| 248 | struct vt1211_data *data = dev_get_drvdata(dev); | |
| 249 | int ix, val; | |
| 250 | ||
| 251 | mutex_lock(&data->update_lock); | |
| 252 | ||
| 253 | /* registers cache is refreshed after 1 second */ | |
| 254 | if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { | |
| 255 | /* read VID */ | |
| 256 | data->vid = vt1211_read8(data, VT1211_REG_VID) & 0x1f; | |
| 257 | ||
| 258 | /* voltage (in) registers */ | |
| 259 | for (ix = 0; ix < ARRAY_SIZE(data->in); ix++) { | |
| 260 | if (ISVOLT(ix, data->uch_config)) { | |
| 261 | data->in[ix] = vt1211_read8(data, | |
| 262 | VT1211_REG_IN(ix)); | |
| 263 | data->in_min[ix] = vt1211_read8(data, | |
| 264 | VT1211_REG_IN_MIN(ix)); | |
| 265 | data->in_max[ix] = vt1211_read8(data, | |
| 266 | VT1211_REG_IN_MAX(ix)); | |
| 267 | } | |
| 268 | } | |
| 269 | ||
| 270 | /* temp registers */ | |
| 271 | for (ix = 0; ix < ARRAY_SIZE(data->temp); ix++) { | |
| 272 | if (ISTEMP(ix, data->uch_config)) { | |
| 273 | data->temp[ix] = vt1211_read8(data, | |
| 274 | regtemp[ix]); | |
| 275 | data->temp_max[ix] = vt1211_read8(data, | |
| 276 | regtempmax[ix]); | |
| 277 | data->temp_hyst[ix] = vt1211_read8(data, | |
| 278 | regtemphyst[ix]); | |
| 279 | } | |
| 280 | } | |
| 281 | ||
| 282 | /* fan & pwm registers */ | |
| 283 | for (ix = 0; ix < ARRAY_SIZE(data->fan); ix++) { | |
| 284 | data->fan[ix] = vt1211_read8(data, | |
| 285 | VT1211_REG_FAN(ix)); | |
| 286 | data->fan_min[ix] = vt1211_read8(data, | |
| 287 | VT1211_REG_FAN_MIN(ix)); | |
| 288 | data->pwm[ix] = vt1211_read8(data, | |
| 289 | VT1211_REG_PWM(ix)); | |
| 290 | } | |
| 291 | val = vt1211_read8(data, VT1211_REG_FAN_DIV); | |
| 292 | data->fan_div[0] = (val >> 4) & 3; | |
| 293 | data->fan_div[1] = (val >> 6) & 3; | |
| 294 | data->fan_ctl = val & 0xf; | |
| 295 | ||
| 296 | val = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
| 297 | data->pwm_ctl[0] = val & 0xf; | |
| 298 | data->pwm_ctl[1] = (val >> 4) & 0xf; | |
| 299 | ||
| 300 | data->pwm_clk = vt1211_read8(data, VT1211_REG_PWM_CLK); | |
| 301 | ||
| 302 | /* pwm & temp auto point registers */ | |
| 303 | data->pwm_auto_pwm[0][1] = vt1211_read8(data, | |
| 304 | VT1211_REG_PWM_AUTO_PWM(0, 1)); | |
| 305 | data->pwm_auto_pwm[0][2] = vt1211_read8(data, | |
| 306 | VT1211_REG_PWM_AUTO_PWM(0, 2)); | |
| 307 | data->pwm_auto_pwm[1][1] = vt1211_read8(data, | |
| 308 | VT1211_REG_PWM_AUTO_PWM(1, 1)); | |
| 309 | data->pwm_auto_pwm[1][2] = vt1211_read8(data, | |
| 310 | VT1211_REG_PWM_AUTO_PWM(1, 2)); | |
| 311 | for (ix = 0; ix < ARRAY_SIZE(data->pwm_auto_temp); ix++) { | |
| 312 | data->pwm_auto_temp[ix] = vt1211_read8(data, | |
| 313 | VT1211_REG_PWM_AUTO_TEMP(ix)); | |
| 314 | } | |
| 315 | ||
| 316 | /* alarm registers */ | |
| 317 | data->alarms = (vt1211_read8(data, VT1211_REG_ALARM2) << 8) | | |
| 318 | vt1211_read8(data, VT1211_REG_ALARM1); | |
| 319 | ||
| 320 | data->last_updated = jiffies; | |
| 321 | data->valid = 1; | |
| 322 | } | |
| 323 | ||
| 324 | mutex_unlock(&data->update_lock); | |
| 325 | ||
| 326 | return data; | |
| 327 | } | |
| 328 | ||
| 329 | /* --------------------------------------------------------------------- | |
| 330 | * Voltage sysfs interfaces | |
| 331 | * ix = [0-5] | |
| 332 | * --------------------------------------------------------------------- */ | |
| 333 | ||
| 334 | #define SHOW_IN_INPUT 0 | |
| 335 | #define SHOW_SET_IN_MIN 1 | |
| 336 | #define SHOW_SET_IN_MAX 2 | |
| 337 | #define SHOW_IN_ALARM 3 | |
| 338 | ||
| 339 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, | |
| 340 | char *buf) | |
| 341 | { | |
| 342 | struct vt1211_data *data = vt1211_update_device(dev); | |
| 343 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
| 344 | to_sensor_dev_attr_2(attr); | |
| 345 | int ix = sensor_attr_2->index; | |
| 346 | int fn = sensor_attr_2->nr; | |
| 347 | int res; | |
| 348 | ||
| 349 | switch (fn) { | |
| 350 | case SHOW_IN_INPUT: | |
| 351 | res = IN_FROM_REG(ix, data->in[ix]); | |
| 352 | break; | |
| 353 | case SHOW_SET_IN_MIN: | |
| 354 | res = IN_FROM_REG(ix, data->in_min[ix]); | |
| 355 | break; | |
| 356 | case SHOW_SET_IN_MAX: | |
| 357 | res = IN_FROM_REG(ix, data->in_max[ix]); | |
| 358 | break; | |
| 359 | case SHOW_IN_ALARM: | |
| 360 | res = (data->alarms >> bitalarmin[ix]) & 1; | |
| 361 | break; | |
| 362 | default: | |
| 363 | res = 0; | |
| 364 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
| 365 | } | |
| 366 | ||
| 367 | return sprintf(buf, "%d\n", res); | |
| 368 | } | |
| 369 | ||
| 370 | static ssize_t set_in(struct device *dev, struct device_attribute *attr, | |
| 371 | const char *buf, size_t count) | |
| 372 | { | |
| 373 | struct vt1211_data *data = dev_get_drvdata(dev); | |
| 374 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
| 375 | to_sensor_dev_attr_2(attr); | |
| 376 | int ix = sensor_attr_2->index; | |
| 377 | int fn = sensor_attr_2->nr; | |
| 378 | long val = simple_strtol(buf, NULL, 10); | |
| 379 | ||
| 380 | mutex_lock(&data->update_lock); | |
| 381 | switch (fn) { | |
| 382 | case SHOW_SET_IN_MIN: | |
| 383 | data->in_min[ix] = IN_TO_REG(ix, val); | |
| 384 | vt1211_write8(data, VT1211_REG_IN_MIN(ix), data->in_min[ix]); | |
| 385 | break; | |
| 386 | case SHOW_SET_IN_MAX: | |
| 387 | data->in_max[ix] = IN_TO_REG(ix, val); | |
| 388 | vt1211_write8(data, VT1211_REG_IN_MAX(ix), data->in_max[ix]); | |
| 389 | break; | |
| 390 | default: | |
| 391 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
| 392 | } | |
| 393 | mutex_unlock(&data->update_lock); | |
| 394 | ||
| 395 | return count; | |
| 396 | } | |
| 397 | ||
| 398 | /* --------------------------------------------------------------------- | |
| 399 | * Temperature sysfs interfaces | |
| 400 | * ix = [0-6] | |
| 401 | * --------------------------------------------------------------------- */ | |
| 402 | ||
| 403 | #define SHOW_TEMP_INPUT 0 | |
| 404 | #define SHOW_SET_TEMP_MAX 1 | |
| 405 | #define SHOW_SET_TEMP_MAX_HYST 2 | |
| 406 | #define SHOW_TEMP_ALARM 3 | |
| 407 | ||
| 408 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, | |
| 409 | char *buf) | |
| 410 | { | |
| 411 | struct vt1211_data *data = vt1211_update_device(dev); | |
| 412 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
| 413 | to_sensor_dev_attr_2(attr); | |
| 414 | int ix = sensor_attr_2->index; | |
| 415 | int fn = sensor_attr_2->nr; | |
| 416 | int res; | |
| 417 | ||
| 418 | switch (fn) { | |
| 419 | case SHOW_TEMP_INPUT: | |
| 420 | res = TEMP_FROM_REG(ix, data->temp[ix]); | |
| 421 | break; | |
| 422 | case SHOW_SET_TEMP_MAX: | |
| 423 | res = TEMP_FROM_REG(ix, data->temp_max[ix]); | |
| 424 | break; | |
| 425 | case SHOW_SET_TEMP_MAX_HYST: | |
| 426 | res = TEMP_FROM_REG(ix, data->temp_hyst[ix]); | |
| 427 | break; | |
| 428 | case SHOW_TEMP_ALARM: | |
| 429 | res = (data->alarms >> bitalarmtemp[ix]) & 1; | |
| 430 | break; | |
| 431 | default: | |
| 432 | res = 0; | |
| 433 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
| 434 | } | |
| 435 | ||
| 436 | return sprintf(buf, "%d\n", res); | |
| 437 | } | |
| 438 | ||
| 439 | static ssize_t set_temp(struct device *dev, struct device_attribute *attr, | |
| 440 | const char *buf, size_t count) | |
| 441 | { | |
| 442 | struct vt1211_data *data = dev_get_drvdata(dev); | |
| 443 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
| 444 | to_sensor_dev_attr_2(attr); | |
| 445 | int ix = sensor_attr_2->index; | |
| 446 | int fn = sensor_attr_2->nr; | |
| 447 | long val = simple_strtol(buf, NULL, 10); | |
| 448 | ||
| 449 | mutex_lock(&data->update_lock); | |
| 450 | switch (fn) { | |
| 451 | case SHOW_SET_TEMP_MAX: | |
| 452 | data->temp_max[ix] = TEMP_TO_REG(ix, val); | |
| 453 | vt1211_write8(data, regtempmax[ix], | |
| 454 | data->temp_max[ix]); | |
| 455 | break; | |
| 456 | case SHOW_SET_TEMP_MAX_HYST: | |
| 457 | data->temp_hyst[ix] = TEMP_TO_REG(ix, val); | |
| 458 | vt1211_write8(data, regtemphyst[ix], | |
| 459 | data->temp_hyst[ix]); | |
| 460 | break; | |
| 461 | default: | |
| 462 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
| 463 | } | |
| 464 | mutex_unlock(&data->update_lock); | |
| 465 | ||
| 466 | return count; | |
| 467 | } | |
| 468 | ||
| 469 | /* --------------------------------------------------------------------- | |
| 470 | * Fan sysfs interfaces | |
| 471 | * ix = [0-1] | |
| 472 | * --------------------------------------------------------------------- */ | |
| 473 | ||
| 474 | #define SHOW_FAN_INPUT 0 | |
| 475 | #define SHOW_SET_FAN_MIN 1 | |
| 476 | #define SHOW_SET_FAN_DIV 2 | |
| 477 | #define SHOW_FAN_ALARM 3 | |
| 478 | ||
| 479 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, | |
| 480 | char *buf) | |
| 481 | { | |
| 482 | struct vt1211_data *data = vt1211_update_device(dev); | |
| 483 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
| 484 | to_sensor_dev_attr_2(attr); | |
| 485 | int ix = sensor_attr_2->index; | |
| 486 | int fn = sensor_attr_2->nr; | |
| 487 | int res; | |
| 488 | ||
| 489 | switch (fn) { | |
| 490 | case SHOW_FAN_INPUT: | |
| 491 | res = RPM_FROM_REG(data->fan[ix], data->fan_div[ix]); | |
| 492 | break; | |
| 493 | case SHOW_SET_FAN_MIN: | |
| 494 | res = RPM_FROM_REG(data->fan_min[ix], data->fan_div[ix]); | |
| 495 | break; | |
| 496 | case SHOW_SET_FAN_DIV: | |
| 497 | res = DIV_FROM_REG(data->fan_div[ix]); | |
| 498 | break; | |
| 499 | case SHOW_FAN_ALARM: | |
| 500 | res = (data->alarms >> bitalarmfan[ix]) & 1; | |
| 501 | break; | |
| 502 | default: | |
| 503 | res = 0; | |
| 504 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
| 505 | } | |
| 506 | ||
| 507 | return sprintf(buf, "%d\n", res); | |
| 508 | } | |
| 509 | ||
| 510 | static ssize_t set_fan(struct device *dev, struct device_attribute *attr, | |
| 511 | const char *buf, size_t count) | |
| 512 | { | |
| 513 | struct vt1211_data *data = dev_get_drvdata(dev); | |
| 514 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
| 515 | to_sensor_dev_attr_2(attr); | |
| 516 | int ix = sensor_attr_2->index; | |
| 517 | int fn = sensor_attr_2->nr; | |
| 518 | long val = simple_strtol(buf, NULL, 10); | |
| 519 | int reg; | |
| 520 | ||
| 521 | mutex_lock(&data->update_lock); | |
| 522 | ||
| 523 | /* sync the data cache */ | |
| 524 | reg = vt1211_read8(data, VT1211_REG_FAN_DIV); | |
| 525 | data->fan_div[0] = (reg >> 4) & 3; | |
| 526 | data->fan_div[1] = (reg >> 6) & 3; | |
| 527 | data->fan_ctl = reg & 0xf; | |
| 528 | ||
| 529 | switch (fn) { | |
| 530 | case SHOW_SET_FAN_MIN: | |
| 531 | data->fan_min[ix] = RPM_TO_REG(val, data->fan_div[ix]); | |
| 532 | vt1211_write8(data, VT1211_REG_FAN_MIN(ix), | |
| 533 | data->fan_min[ix]); | |
| 534 | break; | |
| 535 | case SHOW_SET_FAN_DIV: | |
| 536 | switch (val) { | |
| 537 | case 1: data->fan_div[ix] = 0; break; | |
| 538 | case 2: data->fan_div[ix] = 1; break; | |
| 539 | case 4: data->fan_div[ix] = 2; break; | |
| 540 | case 8: data->fan_div[ix] = 3; break; | |
| 541 | default: | |
| 542 | count = -EINVAL; | |
| 543 | dev_warn(dev, "fan div value %ld not " | |
| 544 | "supported. Choose one of 1, 2, " | |
| 545 | "4, or 8.\n", val); | |
| 546 | goto EXIT; | |
| 547 | } | |
| 548 | vt1211_write8(data, VT1211_REG_FAN_DIV, | |
| 549 | ((data->fan_div[1] << 6) | | |
| 550 | (data->fan_div[0] << 4) | | |
| 551 | data->fan_ctl)); | |
| 552 | break; | |
| 553 | default: | |
| 554 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
| 555 | } | |
| 556 | ||
| 557 | EXIT: | |
| 558 | mutex_unlock(&data->update_lock); | |
| 559 | return count; | |
| 560 | } | |
| 561 | ||
| 562 | /* --------------------------------------------------------------------- | |
| 563 | * PWM sysfs interfaces | |
| 564 | * ix = [0-1] | |
| 565 | * --------------------------------------------------------------------- */ | |
| 566 | ||
| 567 | #define SHOW_PWM 0 | |
| 568 | #define SHOW_SET_PWM_ENABLE 1 | |
| 569 | #define SHOW_SET_PWM_FREQ 2 | |
| 570 | #define SHOW_SET_PWM_AUTO_CHANNELS_TEMP 3 | |
| 571 | ||
| 572 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, | |
| 573 | char *buf) | |
| 574 | { | |
| 575 | struct vt1211_data *data = vt1211_update_device(dev); | |
| 576 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
| 577 | to_sensor_dev_attr_2(attr); | |
| 578 | int ix = sensor_attr_2->index; | |
| 579 | int fn = sensor_attr_2->nr; | |
| 580 | int res; | |
| 581 | ||
| 582 | switch (fn) { | |
| 583 | case SHOW_PWM: | |
| 584 | res = data->pwm[ix]; | |
| 585 | break; | |
| 586 | case SHOW_SET_PWM_ENABLE: | |
| 587 | res = ((data->pwm_ctl[ix] >> 3) & 1) ? 2 : 0; | |
| 588 | break; | |
| 589 | case SHOW_SET_PWM_FREQ: | |
| 590 | res = 90000 >> (data->pwm_clk & 7); | |
| 591 | break; | |
| 592 | case SHOW_SET_PWM_AUTO_CHANNELS_TEMP: | |
| 593 | res = (data->pwm_ctl[ix] & 7) + 1; | |
| 594 | break; | |
| 595 | default: | |
| 596 | res = 0; | |
| 597 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
| 598 | } | |
| 599 | ||
| 600 | return sprintf(buf, "%d\n", res); | |
| 601 | } | |
| 602 | ||
| 603 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, | |
| 604 | const char *buf, size_t count) | |
| 605 | { | |
| 606 | struct vt1211_data *data = dev_get_drvdata(dev); | |
| 607 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
| 608 | to_sensor_dev_attr_2(attr); | |
| 609 | int ix = sensor_attr_2->index; | |
| 610 | int fn = sensor_attr_2->nr; | |
| 611 | long val = simple_strtol(buf, NULL, 10); | |
| 612 | int tmp, reg; | |
| 613 | ||
| 614 | mutex_lock(&data->update_lock); | |
| 615 | ||
| 616 | switch (fn) { | |
| 617 | case SHOW_SET_PWM_ENABLE: | |
| 618 | /* sync the data cache */ | |
| 619 | reg = vt1211_read8(data, VT1211_REG_FAN_DIV); | |
| 620 | data->fan_div[0] = (reg >> 4) & 3; | |
| 621 | data->fan_div[1] = (reg >> 6) & 3; | |
| 622 | data->fan_ctl = reg & 0xf; | |
| 623 | reg = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
| 624 | data->pwm_ctl[0] = reg & 0xf; | |
| 625 | data->pwm_ctl[1] = (reg >> 4) & 0xf; | |
| 626 | switch (val) { | |
| 627 | case 0: | |
| 628 | data->pwm_ctl[ix] &= 7; | |
| 629 | /* disable SmartGuardian if both PWM outputs are | |
| 630 | * disabled */ | |
| 631 | if ((data->pwm_ctl[ix ^ 1] & 1) == 0) { | |
| 632 | data->fan_ctl &= 0xe; | |
| 633 | } | |
| 634 | break; | |
| 635 | case 2: | |
| 636 | data->pwm_ctl[ix] |= 8; | |
| 637 | data->fan_ctl |= 1; | |
| 638 | break; | |
| 639 | default: | |
| 640 | count = -EINVAL; | |
| 641 | dev_warn(dev, "pwm mode %ld not supported. " | |
| 642 | "Choose one of 0 or 2.\n", val); | |
| 643 | goto EXIT; | |
| 644 | } | |
| 645 | vt1211_write8(data, VT1211_REG_PWM_CTL, | |
| 646 | ((data->pwm_ctl[1] << 4) | | |
| 647 | data->pwm_ctl[0])); | |
| 648 | vt1211_write8(data, VT1211_REG_FAN_DIV, | |
| 649 | ((data->fan_div[1] << 6) | | |
| 650 | (data->fan_div[0] << 4) | | |
| 651 | data->fan_ctl)); | |
| 652 | break; | |
| 653 | case SHOW_SET_PWM_FREQ: | |
| 654 | val = 135000 / SENSORS_LIMIT(val, 135000 >> 7, 135000); | |
| 655 | /* calculate tmp = log2(val) */ | |
| 656 | tmp = 0; | |
| 657 | for (val >>= 1; val > 0; val >>= 1) { | |
| 658 | tmp++; | |
| 659 | } | |
| 660 | /* sync the data cache */ | |
| 661 | reg = vt1211_read8(data, VT1211_REG_PWM_CLK); | |
| 662 | data->pwm_clk = (reg & 0xf8) | tmp; | |
| 663 | vt1211_write8(data, VT1211_REG_PWM_CLK, data->pwm_clk); | |
| 664 | break; | |
| 665 | case SHOW_SET_PWM_AUTO_CHANNELS_TEMP: | |
| 666 | if ((val < 1) || (val > 7)) { | |
| 667 | count = -EINVAL; | |
| 668 | dev_warn(dev, "temp channel %ld not supported. " | |
| 669 | "Choose a value between 1 and 7.\n", val); | |
| 670 | goto EXIT; | |
| 671 | } | |
| 672 | if (!ISTEMP(val - 1, data->uch_config)) { | |
| 673 | count = -EINVAL; | |
| 674 | dev_warn(dev, "temp channel %ld is not available.\n", | |
| 675 | val); | |
| 676 | goto EXIT; | |
| 677 | } | |
| 678 | /* sync the data cache */ | |
| 679 | reg = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
| 680 | data->pwm_ctl[0] = reg & 0xf; | |
| 681 | data->pwm_ctl[1] = (reg >> 4) & 0xf; | |
| 682 | data->pwm_ctl[ix] = (data->pwm_ctl[ix] & 8) | (val - 1); | |
| 683 | vt1211_write8(data, VT1211_REG_PWM_CTL, | |
| 684 | ((data->pwm_ctl[1] << 4) | data->pwm_ctl[0])); | |
| 685 | break; | |
| 686 | default: | |
| 687 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
| 688 | } | |
| 689 | ||
| 690 | EXIT: | |
| 691 | mutex_unlock(&data->update_lock); | |
| 692 | return count; | |
| 693 | } | |
| 694 | ||
| 695 | /* --------------------------------------------------------------------- | |
| 696 | * PWM auto point definitions | |
| 697 | * ix = [0-1] | |
| 698 | * ap = [0-3] | |
| 699 | * --------------------------------------------------------------------- */ | |
| 700 | ||
| 701 | /* | |
| 702 | * pwm[ix+1]_auto_point[ap+1]_temp mapping table: | |
| 703 | * Note that there is only a single set of temp auto points that controls both | |
| 704 | * PWM controllers. We still create 2 sets of sysfs files to make it look | |
| 705 | * more consistent even though they map to the same registers. | |
| 706 | * | |
| 707 | * ix ap : description | |
| 708 | * ------------------- | |
| 709 | * 0 0 : pwm1/2 off temperature (pwm_auto_temp[0]) | |
| 710 | * 0 1 : pwm1/2 low speed temperature (pwm_auto_temp[1]) | |
| 711 | * 0 2 : pwm1/2 high speed temperature (pwm_auto_temp[2]) | |
| 712 | * 0 3 : pwm1/2 full speed temperature (pwm_auto_temp[3]) | |
| 713 | * 1 0 : pwm1/2 off temperature (pwm_auto_temp[0]) | |
| 714 | * 1 1 : pwm1/2 low speed temperature (pwm_auto_temp[1]) | |
| 715 | * 1 2 : pwm1/2 high speed temperature (pwm_auto_temp[2]) | |
| 716 | * 1 3 : pwm1/2 full speed temperature (pwm_auto_temp[3]) | |
| 717 | */ | |
| 718 | ||
| 719 | static ssize_t show_pwm_auto_point_temp(struct device *dev, | |
| 720 | struct device_attribute *attr, | |
| 721 | char *buf) | |
| 722 | { | |
| 723 | struct vt1211_data *data = vt1211_update_device(dev); | |
| 724 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
| 725 | to_sensor_dev_attr_2(attr); | |
| 726 | int ix = sensor_attr_2->index; | |
| 727 | int ap = sensor_attr_2->nr; | |
| 728 | ||
| 729 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->pwm_ctl[ix] & 7, | |
| 730 | data->pwm_auto_temp[ap])); | |
| 731 | } | |
| 732 | ||
| 733 | static ssize_t set_pwm_auto_point_temp(struct device *dev, | |
| 734 | struct device_attribute *attr, | |
| 735 | const char *buf, size_t count) | |
| 736 | { | |
| 737 | struct vt1211_data *data = dev_get_drvdata(dev); | |
| 738 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
| 739 | to_sensor_dev_attr_2(attr); | |
| 740 | int ix = sensor_attr_2->index; | |
| 741 | int ap = sensor_attr_2->nr; | |
| 742 | long val = simple_strtol(buf, NULL, 10); | |
| 743 | int reg; | |
| 744 | ||
| 745 | mutex_lock(&data->update_lock); | |
| 746 | ||
| 747 | /* sync the data cache */ | |
| 748 | reg = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
| 749 | data->pwm_ctl[0] = reg & 0xf; | |
| 750 | data->pwm_ctl[1] = (reg >> 4) & 0xf; | |
| 751 | ||
| 752 | data->pwm_auto_temp[ap] = TEMP_TO_REG(data->pwm_ctl[ix] & 7, val); | |
| 753 | vt1211_write8(data, VT1211_REG_PWM_AUTO_TEMP(ap), | |
| 754 | data->pwm_auto_temp[ap]); | |
| 755 | mutex_unlock(&data->update_lock); | |
| 756 | ||
| 757 | return count; | |
| 758 | } | |
| 759 | ||
| 760 | /* | |
| 761 | * pwm[ix+1]_auto_point[ap+1]_pwm mapping table: | |
| 762 | * Note that the PWM auto points 0 & 3 are hard-wired in the VT1211 and can't | |
| 763 | * be changed. | |
| 764 | * | |
| 765 | * ix ap : description | |
| 766 | * ------------------- | |
| 767 | * 0 0 : pwm1 off (pwm_auto_pwm[0][0], hard-wired to 0) | |
| 768 | * 0 1 : pwm1 low speed duty cycle (pwm_auto_pwm[0][1]) | |
| 769 | * 0 2 : pwm1 high speed duty cycle (pwm_auto_pwm[0][2]) | |
| 770 | * 0 3 : pwm1 full speed (pwm_auto_pwm[0][3], hard-wired to 255) | |
| 771 | * 1 0 : pwm2 off (pwm_auto_pwm[1][0], hard-wired to 0) | |
| 772 | * 1 1 : pwm2 low speed duty cycle (pwm_auto_pwm[1][1]) | |
| 773 | * 1 2 : pwm2 high speed duty cycle (pwm_auto_pwm[1][2]) | |
| 774 | * 1 3 : pwm2 full speed (pwm_auto_pwm[1][3], hard-wired to 255) | |
| 775 | */ | |
| 776 | ||
| 777 | static ssize_t show_pwm_auto_point_pwm(struct device *dev, | |
| 778 | struct device_attribute *attr, | |
| 779 | char *buf) | |
| 780 | { | |
| 781 | struct vt1211_data *data = vt1211_update_device(dev); | |
| 782 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
| 783 | to_sensor_dev_attr_2(attr); | |
| 784 | int ix = sensor_attr_2->index; | |
| 785 | int ap = sensor_attr_2->nr; | |
| 786 | ||
| 787 | return sprintf(buf, "%d\n", data->pwm_auto_pwm[ix][ap]); | |
| 788 | } | |
| 789 | ||
| 790 | static ssize_t set_pwm_auto_point_pwm(struct device *dev, | |
| 791 | struct device_attribute *attr, | |
| 792 | const char *buf, size_t count) | |
| 793 | { | |
| 794 | struct vt1211_data *data = dev_get_drvdata(dev); | |
| 795 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
| 796 | to_sensor_dev_attr_2(attr); | |
| 797 | int ix = sensor_attr_2->index; | |
| 798 | int ap = sensor_attr_2->nr; | |
| 799 | long val = simple_strtol(buf, NULL, 10); | |
| 800 | ||
| 801 | if ((val < 0) || (val > 255)) { | |
| 802 | dev_err(dev, "pwm value %ld is out of range. " | |
| 898eb71c | 803 | "Choose a value between 0 and 255.\n" , val); |
| ab41319e JH |
804 | return -EINVAL; |
| 805 | } | |
| 806 | ||
| 807 | mutex_lock(&data->update_lock); | |
| 808 | data->pwm_auto_pwm[ix][ap] = val; | |
| 809 | vt1211_write8(data, VT1211_REG_PWM_AUTO_PWM(ix, ap), | |
| 810 | data->pwm_auto_pwm[ix][ap]); | |
| 811 | mutex_unlock(&data->update_lock); | |
| 812 | ||
| 813 | return count; | |
| 814 | } | |
| 815 | ||
| 816 | /* --------------------------------------------------------------------- | |
| 817 | * Miscellaneous sysfs interfaces (VRM, VID, name, and (legacy) alarms) | |
| 818 | * --------------------------------------------------------------------- */ | |
| 819 | ||
| 820 | static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, | |
| 821 | char *buf) | |
| 822 | { | |
| 823 | struct vt1211_data *data = dev_get_drvdata(dev); | |
| 824 | ||
| 825 | return sprintf(buf, "%d\n", data->vrm); | |
| 826 | } | |
| 827 | ||
| 828 | static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, | |
| 829 | const char *buf, size_t count) | |
| 830 | { | |
| 831 | struct vt1211_data *data = dev_get_drvdata(dev); | |
| 832 | long val = simple_strtol(buf, NULL, 10); | |
| 833 | ||
| 834 | data->vrm = val; | |
| 835 | ||
| 836 | return count; | |
| 837 | } | |
| 838 | ||
| 839 | static ssize_t show_vid(struct device *dev, struct device_attribute *attr, | |
| 840 | char *buf) | |
| 841 | { | |
| 842 | struct vt1211_data *data = dev_get_drvdata(dev); | |
| 843 | ||
| 844 | return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); | |
| 845 | } | |
| 846 | ||
| 847 | static ssize_t show_name(struct device *dev, | |
| 848 | struct device_attribute *attr, char *buf) | |
| 849 | { | |
| 850 | struct vt1211_data *data = dev_get_drvdata(dev); | |
| 851 | ||
| 852 | return sprintf(buf, "%s\n", data->name); | |
| 853 | } | |
| 854 | ||
| 855 | static ssize_t show_alarms(struct device *dev, | |
| 856 | struct device_attribute *attr, char *buf) | |
| 857 | { | |
| 858 | struct vt1211_data *data = vt1211_update_device(dev); | |
| 859 | ||
| 860 | return sprintf(buf, "%d\n", data->alarms); | |
| 861 | } | |
| 862 | ||
| 863 | /* --------------------------------------------------------------------- | |
| 864 | * Device attribute structs | |
| 865 | * --------------------------------------------------------------------- */ | |
| 866 | ||
| 867 | #define SENSOR_ATTR_IN_INPUT(ix) \ | |
| 868 | SENSOR_ATTR_2(in##ix##_input, S_IRUGO, \ | |
| 869 | show_in, NULL, SHOW_IN_INPUT, ix) | |
| 870 | ||
| 871 | static struct sensor_device_attribute_2 vt1211_sysfs_in_input[] = { | |
| 872 | SENSOR_ATTR_IN_INPUT(0), | |
| 873 | SENSOR_ATTR_IN_INPUT(1), | |
| 874 | SENSOR_ATTR_IN_INPUT(2), | |
| 875 | SENSOR_ATTR_IN_INPUT(3), | |
| 876 | SENSOR_ATTR_IN_INPUT(4), | |
| 877 | SENSOR_ATTR_IN_INPUT(5), | |
| 878 | }; | |
| 879 | ||
| 880 | #define SENSOR_ATTR_IN_MIN(ix) \ | |
| 881 | SENSOR_ATTR_2(in##ix##_min, S_IRUGO | S_IWUSR, \ | |
| 882 | show_in, set_in, SHOW_SET_IN_MIN, ix) | |
| 883 | ||
| 884 | static struct sensor_device_attribute_2 vt1211_sysfs_in_min[] = { | |
| 885 | SENSOR_ATTR_IN_MIN(0), | |
| 886 | SENSOR_ATTR_IN_MIN(1), | |
| 887 | SENSOR_ATTR_IN_MIN(2), | |
| 888 | SENSOR_ATTR_IN_MIN(3), | |
| 889 | SENSOR_ATTR_IN_MIN(4), | |
| 890 | SENSOR_ATTR_IN_MIN(5), | |
| 891 | }; | |
| 892 | ||
| 893 | #define SENSOR_ATTR_IN_MAX(ix) \ | |
| 894 | SENSOR_ATTR_2(in##ix##_max, S_IRUGO | S_IWUSR, \ | |
| 895 | show_in, set_in, SHOW_SET_IN_MAX, ix) | |
| 896 | ||
| 897 | static struct sensor_device_attribute_2 vt1211_sysfs_in_max[] = { | |
| 898 | SENSOR_ATTR_IN_MAX(0), | |
| 899 | SENSOR_ATTR_IN_MAX(1), | |
| 900 | SENSOR_ATTR_IN_MAX(2), | |
| 901 | SENSOR_ATTR_IN_MAX(3), | |
| 902 | SENSOR_ATTR_IN_MAX(4), | |
| 903 | SENSOR_ATTR_IN_MAX(5), | |
| 904 | }; | |
| 905 | ||
| 906 | #define SENSOR_ATTR_IN_ALARM(ix) \ | |
| 907 | SENSOR_ATTR_2(in##ix##_alarm, S_IRUGO, \ | |
| 908 | show_in, NULL, SHOW_IN_ALARM, ix) | |
| 909 | ||
| 910 | static struct sensor_device_attribute_2 vt1211_sysfs_in_alarm[] = { | |
| 911 | SENSOR_ATTR_IN_ALARM(0), | |
| 912 | SENSOR_ATTR_IN_ALARM(1), | |
| 913 | SENSOR_ATTR_IN_ALARM(2), | |
| 914 | SENSOR_ATTR_IN_ALARM(3), | |
| 915 | SENSOR_ATTR_IN_ALARM(4), | |
| 916 | SENSOR_ATTR_IN_ALARM(5), | |
| 917 | }; | |
| 918 | ||
| 919 | #define SENSOR_ATTR_TEMP_INPUT(ix) \ | |
| 920 | SENSOR_ATTR_2(temp##ix##_input, S_IRUGO, \ | |
| 921 | show_temp, NULL, SHOW_TEMP_INPUT, ix-1) | |
| 922 | ||
| 923 | static struct sensor_device_attribute_2 vt1211_sysfs_temp_input[] = { | |
| 924 | SENSOR_ATTR_TEMP_INPUT(1), | |
| 925 | SENSOR_ATTR_TEMP_INPUT(2), | |
| 926 | SENSOR_ATTR_TEMP_INPUT(3), | |
| 927 | SENSOR_ATTR_TEMP_INPUT(4), | |
| 928 | SENSOR_ATTR_TEMP_INPUT(5), | |
| 929 | SENSOR_ATTR_TEMP_INPUT(6), | |
| 930 | SENSOR_ATTR_TEMP_INPUT(7), | |
| 931 | }; | |
| 932 | ||
| 933 | #define SENSOR_ATTR_TEMP_MAX(ix) \ | |
| 934 | SENSOR_ATTR_2(temp##ix##_max, S_IRUGO | S_IWUSR, \ | |
| 935 | show_temp, set_temp, SHOW_SET_TEMP_MAX, ix-1) | |
| 936 | ||
| 937 | static struct sensor_device_attribute_2 vt1211_sysfs_temp_max[] = { | |
| 938 | SENSOR_ATTR_TEMP_MAX(1), | |
| 939 | SENSOR_ATTR_TEMP_MAX(2), | |
| 940 | SENSOR_ATTR_TEMP_MAX(3), | |
| 941 | SENSOR_ATTR_TEMP_MAX(4), | |
| 942 | SENSOR_ATTR_TEMP_MAX(5), | |
| 943 | SENSOR_ATTR_TEMP_MAX(6), | |
| 944 | SENSOR_ATTR_TEMP_MAX(7), | |
| 945 | }; | |
| 946 | ||
| 947 | #define SENSOR_ATTR_TEMP_MAX_HYST(ix) \ | |
| 948 | SENSOR_ATTR_2(temp##ix##_max_hyst, S_IRUGO | S_IWUSR, \ | |
| 949 | show_temp, set_temp, SHOW_SET_TEMP_MAX_HYST, ix-1) | |
| 950 | ||
| 951 | static struct sensor_device_attribute_2 vt1211_sysfs_temp_max_hyst[] = { | |
| 952 | SENSOR_ATTR_TEMP_MAX_HYST(1), | |
| 953 | SENSOR_ATTR_TEMP_MAX_HYST(2), | |
| 954 | SENSOR_ATTR_TEMP_MAX_HYST(3), | |
| 955 | SENSOR_ATTR_TEMP_MAX_HYST(4), | |
| 956 | SENSOR_ATTR_TEMP_MAX_HYST(5), | |
| 957 | SENSOR_ATTR_TEMP_MAX_HYST(6), | |
| 958 | SENSOR_ATTR_TEMP_MAX_HYST(7), | |
| 959 | }; | |
| 960 | ||
| 961 | #define SENSOR_ATTR_TEMP_ALARM(ix) \ | |
| 962 | SENSOR_ATTR_2(temp##ix##_alarm, S_IRUGO, \ | |
| 963 | show_temp, NULL, SHOW_TEMP_ALARM, ix-1) | |
| 964 | ||
| 965 | static struct sensor_device_attribute_2 vt1211_sysfs_temp_alarm[] = { | |
| 966 | SENSOR_ATTR_TEMP_ALARM(1), | |
| 967 | SENSOR_ATTR_TEMP_ALARM(2), | |
| 968 | SENSOR_ATTR_TEMP_ALARM(3), | |
| 969 | SENSOR_ATTR_TEMP_ALARM(4), | |
| 970 | SENSOR_ATTR_TEMP_ALARM(5), | |
| 971 | SENSOR_ATTR_TEMP_ALARM(6), | |
| 972 | SENSOR_ATTR_TEMP_ALARM(7), | |
| 973 | }; | |
| 974 | ||
| 975 | #define SENSOR_ATTR_FAN(ix) \ | |
| 976 | SENSOR_ATTR_2(fan##ix##_input, S_IRUGO, \ | |
| 977 | show_fan, NULL, SHOW_FAN_INPUT, ix-1), \ | |
| 978 | SENSOR_ATTR_2(fan##ix##_min, S_IRUGO | S_IWUSR, \ | |
| 979 | show_fan, set_fan, SHOW_SET_FAN_MIN, ix-1), \ | |
| 980 | SENSOR_ATTR_2(fan##ix##_div, S_IRUGO | S_IWUSR, \ | |
| 981 | show_fan, set_fan, SHOW_SET_FAN_DIV, ix-1), \ | |
| 982 | SENSOR_ATTR_2(fan##ix##_alarm, S_IRUGO, \ | |
| 983 | show_fan, NULL, SHOW_FAN_ALARM, ix-1) | |
| 984 | ||
| 985 | #define SENSOR_ATTR_PWM(ix) \ | |
| 986 | SENSOR_ATTR_2(pwm##ix, S_IRUGO, \ | |
| 987 | show_pwm, NULL, SHOW_PWM, ix-1), \ | |
| 988 | SENSOR_ATTR_2(pwm##ix##_enable, S_IRUGO | S_IWUSR, \ | |
| 989 | show_pwm, set_pwm, SHOW_SET_PWM_ENABLE, ix-1), \ | |
| 990 | SENSOR_ATTR_2(pwm##ix##_auto_channels_temp, S_IRUGO | S_IWUSR, \ | |
| 991 | show_pwm, set_pwm, SHOW_SET_PWM_AUTO_CHANNELS_TEMP, ix-1) | |
| 992 | ||
| 993 | #define SENSOR_ATTR_PWM_FREQ(ix) \ | |
| 994 | SENSOR_ATTR_2(pwm##ix##_freq, S_IRUGO | S_IWUSR, \ | |
| 995 | show_pwm, set_pwm, SHOW_SET_PWM_FREQ, ix-1) | |
| 996 | ||
| 997 | #define SENSOR_ATTR_PWM_FREQ_RO(ix) \ | |
| 998 | SENSOR_ATTR_2(pwm##ix##_freq, S_IRUGO, \ | |
| 999 | show_pwm, NULL, SHOW_SET_PWM_FREQ, ix-1) | |
| 1000 | ||
| 1001 | #define SENSOR_ATTR_PWM_AUTO_POINT_TEMP(ix, ap) \ | |
| 1002 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_temp, S_IRUGO | S_IWUSR, \ | |
| 1003 | show_pwm_auto_point_temp, set_pwm_auto_point_temp, \ | |
| 1004 | ap-1, ix-1) | |
| 1005 | ||
| 1006 | #define SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(ix, ap) \ | |
| 1007 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_temp, S_IRUGO, \ | |
| 1008 | show_pwm_auto_point_temp, NULL, \ | |
| 1009 | ap-1, ix-1) | |
| 1010 | ||
| 1011 | #define SENSOR_ATTR_PWM_AUTO_POINT_PWM(ix, ap) \ | |
| 1012 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_pwm, S_IRUGO | S_IWUSR, \ | |
| 1013 | show_pwm_auto_point_pwm, set_pwm_auto_point_pwm, \ | |
| 1014 | ap-1, ix-1) | |
| 1015 | ||
| 1016 | #define SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(ix, ap) \ | |
| 1017 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_pwm, S_IRUGO, \ | |
| 1018 | show_pwm_auto_point_pwm, NULL, \ | |
| 1019 | ap-1, ix-1) | |
| 1020 | ||
| 1021 | static struct sensor_device_attribute_2 vt1211_sysfs_fan_pwm[] = { | |
| 1022 | SENSOR_ATTR_FAN(1), | |
| 1023 | SENSOR_ATTR_FAN(2), | |
| 1024 | SENSOR_ATTR_PWM(1), | |
| 1025 | SENSOR_ATTR_PWM(2), | |
| 1026 | SENSOR_ATTR_PWM_FREQ(1), | |
| 1027 | SENSOR_ATTR_PWM_FREQ_RO(2), | |
| 1028 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 1), | |
| 1029 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 2), | |
| 1030 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 3), | |
| 1031 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 4), | |
| 1032 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 1), | |
| 1033 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 2), | |
| 1034 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 3), | |
| 1035 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 4), | |
| 1036 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(1, 1), | |
| 1037 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(1, 2), | |
| 1038 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(1, 3), | |
| 1039 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(1, 4), | |
| 1040 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(2, 1), | |
| 1041 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(2, 2), | |
| 1042 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(2, 3), | |
| 1043 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(2, 4), | |
| 1044 | }; | |
| 1045 | ||
| 1046 | static struct device_attribute vt1211_sysfs_misc[] = { | |
| 1047 | __ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm), | |
| 1048 | __ATTR(cpu0_vid, S_IRUGO, show_vid, NULL), | |
| 1049 | __ATTR(name, S_IRUGO, show_name, NULL), | |
| 1050 | __ATTR(alarms, S_IRUGO, show_alarms, NULL), | |
| 1051 | }; | |
| 1052 | ||
| 1053 | /* --------------------------------------------------------------------- | |
| 1054 | * Device registration and initialization | |
| 1055 | * --------------------------------------------------------------------- */ | |
| 1056 | ||
| 1057 | static void __devinit vt1211_init_device(struct vt1211_data *data) | |
| 1058 | { | |
| 1059 | /* set VRM */ | |
| 1060 | data->vrm = vid_which_vrm(); | |
| 1061 | ||
| 1062 | /* Read (and initialize) UCH config */ | |
| 1063 | data->uch_config = vt1211_read8(data, VT1211_REG_UCH_CONFIG); | |
| 1064 | if (uch_config > -1) { | |
| 1065 | data->uch_config = (data->uch_config & 0x83) | | |
| 1066 | (uch_config << 2); | |
| 1067 | vt1211_write8(data, VT1211_REG_UCH_CONFIG, data->uch_config); | |
| 1068 | } | |
| 1069 | ||
| 1070 | /* Initialize the interrupt mode (if request at module load time). | |
| 1071 | * The VT1211 implements 3 different modes for clearing interrupts: | |
| 1072 | * 0: Clear INT when status register is read. Regenerate INT as long | |
| 1073 | * as temp stays above hysteresis limit. | |
| 1074 | * 1: Clear INT when status register is read. DON'T regenerate INT | |
| 1075 | * until temp falls below hysteresis limit and exceeds hot limit | |
| 1076 | * again. | |
| 1077 | * 2: Clear INT when temp falls below max limit. | |
| 1078 | * | |
| 1079 | * The driver only allows to force mode 0 since that's the only one | |
| 1080 | * that makes sense for 'sensors' */ | |
| 1081 | if (int_mode == 0) { | |
| 1082 | vt1211_write8(data, VT1211_REG_TEMP1_CONFIG, 0); | |
| 1083 | vt1211_write8(data, VT1211_REG_TEMP2_CONFIG, 0); | |
| 1084 | } | |
| 1085 | ||
| 1086 | /* Fill in some hard wired values into our data struct */ | |
| 1087 | data->pwm_auto_pwm[0][3] = 255; | |
| 1088 | data->pwm_auto_pwm[1][3] = 255; | |
| 1089 | } | |
| 1090 | ||
| 1091 | static void vt1211_remove_sysfs(struct platform_device *pdev) | |
| 1092 | { | |
| 1093 | struct device *dev = &pdev->dev; | |
| 1094 | int i; | |
| 1095 | ||
| 1096 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_in_input); i++) { | |
| 1097 | device_remove_file(dev, | |
| 1098 | &vt1211_sysfs_in_input[i].dev_attr); | |
| 1099 | device_remove_file(dev, | |
| 1100 | &vt1211_sysfs_in_min[i].dev_attr); | |
| 1101 | device_remove_file(dev, | |
| 1102 | &vt1211_sysfs_in_max[i].dev_attr); | |
| 1103 | device_remove_file(dev, | |
| 1104 | &vt1211_sysfs_in_alarm[i].dev_attr); | |
| 1105 | } | |
| 1106 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_temp_input); i++) { | |
| 1107 | device_remove_file(dev, | |
| 1108 | &vt1211_sysfs_temp_input[i].dev_attr); | |
| 1109 | device_remove_file(dev, | |
| 1110 | &vt1211_sysfs_temp_max[i].dev_attr); | |
| 1111 | device_remove_file(dev, | |
| 1112 | &vt1211_sysfs_temp_max_hyst[i].dev_attr); | |
| 1113 | device_remove_file(dev, | |
| 1114 | &vt1211_sysfs_temp_alarm[i].dev_attr); | |
| 1115 | } | |
| 1116 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_fan_pwm); i++) { | |
| 1117 | device_remove_file(dev, | |
| 1118 | &vt1211_sysfs_fan_pwm[i].dev_attr); | |
| 1119 | } | |
| 1120 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_misc); i++) { | |
| 1121 | device_remove_file(dev, &vt1211_sysfs_misc[i]); | |
| 1122 | } | |
| 1123 | } | |
| 1124 | ||
| 1125 | static int __devinit vt1211_probe(struct platform_device *pdev) | |
| 1126 | { | |
| 1127 | struct device *dev = &pdev->dev; | |
| 1128 | struct vt1211_data *data; | |
| 1129 | struct resource *res; | |
| 1130 | int i, err; | |
| 1131 | ||
| 1132 | if (!(data = kzalloc(sizeof(struct vt1211_data), GFP_KERNEL))) { | |
| 1133 | err = -ENOMEM; | |
| 1134 | dev_err(dev, "Out of memory\n"); | |
| 1135 | goto EXIT; | |
| 1136 | } | |
| 1137 | ||
| 1138 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); | |
| 86855b0c | 1139 | if (!request_region(res->start, resource_size(res), DRVNAME)) { |
| ce7ee4e8 JD |
1140 | err = -EBUSY; |
| 1141 | dev_err(dev, "Failed to request region 0x%lx-0x%lx\n", | |
| 1142 | (unsigned long)res->start, (unsigned long)res->end); | |
| 1143 | goto EXIT_KFREE; | |
| 1144 | } | |
| ab41319e JH |
1145 | data->addr = res->start; |
| 1146 | data->name = DRVNAME; | |
| 1147 | mutex_init(&data->update_lock); | |
| 1148 | ||
| 1149 | platform_set_drvdata(pdev, data); | |
| 1150 | ||
| 1151 | /* Initialize the VT1211 chip */ | |
| 1152 | vt1211_init_device(data); | |
| 1153 | ||
| 1154 | /* Create sysfs interface files */ | |
| 1155 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_in_input); i++) { | |
| 1156 | if (ISVOLT(i, data->uch_config)) { | |
| 1157 | if ((err = device_create_file(dev, | |
| 1158 | &vt1211_sysfs_in_input[i].dev_attr)) || | |
| 1159 | (err = device_create_file(dev, | |
| 1160 | &vt1211_sysfs_in_min[i].dev_attr)) || | |
| 1161 | (err = device_create_file(dev, | |
| 1162 | &vt1211_sysfs_in_max[i].dev_attr)) || | |
| 1163 | (err = device_create_file(dev, | |
| 1164 | &vt1211_sysfs_in_alarm[i].dev_attr))) { | |
| 1165 | goto EXIT_DEV_REMOVE; | |
| 1166 | } | |
| 1167 | } | |
| 1168 | } | |
| 1169 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_temp_input); i++) { | |
| 1170 | if (ISTEMP(i, data->uch_config)) { | |
| 1171 | if ((err = device_create_file(dev, | |
| 1172 | &vt1211_sysfs_temp_input[i].dev_attr)) || | |
| 1173 | (err = device_create_file(dev, | |
| 1174 | &vt1211_sysfs_temp_max[i].dev_attr)) || | |
| 1175 | (err = device_create_file(dev, | |
| 1176 | &vt1211_sysfs_temp_max_hyst[i].dev_attr)) || | |
| 1177 | (err = device_create_file(dev, | |
| 1178 | &vt1211_sysfs_temp_alarm[i].dev_attr))) { | |
| 1179 | goto EXIT_DEV_REMOVE; | |
| 1180 | } | |
| 1181 | } | |
| 1182 | } | |
| 1183 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_fan_pwm); i++) { | |
| 1184 | err = device_create_file(dev, | |
| 1185 | &vt1211_sysfs_fan_pwm[i].dev_attr); | |
| 1186 | if (err) { | |
| 1187 | goto EXIT_DEV_REMOVE; | |
| 1188 | } | |
| 1189 | } | |
| 1190 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_misc); i++) { | |
| 1191 | err = device_create_file(dev, | |
| 1192 | &vt1211_sysfs_misc[i]); | |
| 1193 | if (err) { | |
| 1194 | goto EXIT_DEV_REMOVE; | |
| 1195 | } | |
| 1196 | } | |
| 1197 | ||
| 1198 | /* Register device */ | |
| 1beeffe4 TJ |
1199 | data->hwmon_dev = hwmon_device_register(dev); |
| 1200 | if (IS_ERR(data->hwmon_dev)) { | |
| 1201 | err = PTR_ERR(data->hwmon_dev); | |
| ab41319e JH |
1202 | dev_err(dev, "Class registration failed (%d)\n", err); |
| 1203 | goto EXIT_DEV_REMOVE_SILENT; | |
| 1204 | } | |
| 1205 | ||
| 1206 | return 0; | |
| 1207 | ||
| 1208 | EXIT_DEV_REMOVE: | |
| 1209 | dev_err(dev, "Sysfs interface creation failed (%d)\n", err); | |
| 1210 | EXIT_DEV_REMOVE_SILENT: | |
| 1211 | vt1211_remove_sysfs(pdev); | |
| 86855b0c | 1212 | release_region(res->start, resource_size(res)); |
| ce7ee4e8 | 1213 | EXIT_KFREE: |
| ab41319e JH |
1214 | platform_set_drvdata(pdev, NULL); |
| 1215 | kfree(data); | |
| 1216 | EXIT: | |
| 1217 | return err; | |
| 1218 | } | |
| 1219 | ||
| 1220 | static int __devexit vt1211_remove(struct platform_device *pdev) | |
| 1221 | { | |
| 1222 | struct vt1211_data *data = platform_get_drvdata(pdev); | |
| ce7ee4e8 | 1223 | struct resource *res; |
| ab41319e | 1224 | |
| 1beeffe4 | 1225 | hwmon_device_unregister(data->hwmon_dev); |
| ab41319e JH |
1226 | vt1211_remove_sysfs(pdev); |
| 1227 | platform_set_drvdata(pdev, NULL); | |
| 1228 | kfree(data); | |
| 1229 | ||
| ce7ee4e8 | 1230 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); |
| 86855b0c | 1231 | release_region(res->start, resource_size(res)); |
| ce7ee4e8 | 1232 | |
| ab41319e JH |
1233 | return 0; |
| 1234 | } | |
| 1235 | ||
| 1236 | static struct platform_driver vt1211_driver = { | |
| 1237 | .driver = { | |
| 1238 | .owner = THIS_MODULE, | |
| 1239 | .name = DRVNAME, | |
| 1240 | }, | |
| 1241 | .probe = vt1211_probe, | |
| 1242 | .remove = __devexit_p(vt1211_remove), | |
| 1243 | }; | |
| 1244 | ||
| 1245 | static int __init vt1211_device_add(unsigned short address) | |
| 1246 | { | |
| 1247 | struct resource res = { | |
| 1248 | .start = address, | |
| 1249 | .end = address + 0x7f, | |
| 1250 | .flags = IORESOURCE_IO, | |
| 1251 | }; | |
| 1252 | int err; | |
| 1253 | ||
| 1254 | pdev = platform_device_alloc(DRVNAME, address); | |
| 1255 | if (!pdev) { | |
| 1256 | err = -ENOMEM; | |
| 1257 | printk(KERN_ERR DRVNAME ": Device allocation failed (%d)\n", | |
| 1258 | err); | |
| 1259 | goto EXIT; | |
| 1260 | } | |
| 1261 | ||
| 1262 | res.name = pdev->name; | |
| b9acb64a JD |
1263 | err = acpi_check_resource_conflict(&res); |
| 1264 | if (err) | |
| 18632f84 | 1265 | goto EXIT_DEV_PUT; |
| b9acb64a | 1266 | |
| ab41319e JH |
1267 | err = platform_device_add_resources(pdev, &res, 1); |
| 1268 | if (err) { | |
| 1269 | printk(KERN_ERR DRVNAME ": Device resource addition failed " | |
| 1270 | "(%d)\n", err); | |
| 1271 | goto EXIT_DEV_PUT; | |
| 1272 | } | |
| 1273 | ||
| 1274 | err = platform_device_add(pdev); | |
| 1275 | if (err) { | |
| 1276 | printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n", | |
| 1277 | err); | |
| 1278 | goto EXIT_DEV_PUT; | |
| 1279 | } | |
| 1280 | ||
| 1281 | return 0; | |
| 1282 | ||
| 1283 | EXIT_DEV_PUT: | |
| 1284 | platform_device_put(pdev); | |
| 1285 | EXIT: | |
| 1286 | return err; | |
| 1287 | } | |
| 1288 | ||
| 2219cd81 | 1289 | static int __init vt1211_find(int sio_cip, unsigned short *address) |
| ab41319e JH |
1290 | { |
| 1291 | int err = -ENODEV; | |
| 67b671bc | 1292 | int devid; |
| ab41319e | 1293 | |
| 2219cd81 | 1294 | superio_enter(sio_cip); |
| ab41319e | 1295 | |
| 67b671bc JD |
1296 | devid = force_id ? force_id : superio_inb(sio_cip, SIO_VT1211_DEVID); |
| 1297 | if (devid != SIO_VT1211_ID) { | |
| ab41319e JH |
1298 | goto EXIT; |
| 1299 | } | |
| 1300 | ||
| 2219cd81 | 1301 | superio_select(sio_cip, SIO_VT1211_LDN_HWMON); |
| ab41319e | 1302 | |
| 2219cd81 | 1303 | if ((superio_inb(sio_cip, SIO_VT1211_ACTIVE) & 1) == 0) { |
| ab41319e JH |
1304 | printk(KERN_WARNING DRVNAME ": HW monitor is disabled, " |
| 1305 | "skipping\n"); | |
| 1306 | goto EXIT; | |
| 1307 | } | |
| 1308 | ||
| 2219cd81 JH |
1309 | *address = ((superio_inb(sio_cip, SIO_VT1211_BADDR) << 8) | |
| 1310 | (superio_inb(sio_cip, SIO_VT1211_BADDR + 1))) & 0xff00; | |
| ab41319e JH |
1311 | if (*address == 0) { |
| 1312 | printk(KERN_WARNING DRVNAME ": Base address is not set, " | |
| 1313 | "skipping\n"); | |
| 1314 | goto EXIT; | |
| 1315 | } | |
| 1316 | ||
| 1317 | err = 0; | |
| 1318 | printk(KERN_INFO DRVNAME ": Found VT1211 chip at 0x%04x, " | |
| 2219cd81 JH |
1319 | "revision %u\n", *address, |
| 1320 | superio_inb(sio_cip, SIO_VT1211_DEVREV)); | |
| ab41319e JH |
1321 | |
| 1322 | EXIT: | |
| 2219cd81 | 1323 | superio_exit(sio_cip); |
| ab41319e JH |
1324 | return err; |
| 1325 | } | |
| 1326 | ||
| 1327 | static int __init vt1211_init(void) | |
| 1328 | { | |
| 1329 | int err; | |
| 1330 | unsigned short address = 0; | |
| 1331 | ||
| 2219cd81 JH |
1332 | if ((err = vt1211_find(SIO_REG_CIP1, &address)) && |
| 1333 | (err = vt1211_find(SIO_REG_CIP2, &address))) { | |
| ab41319e JH |
1334 | goto EXIT; |
| 1335 | } | |
| 1336 | ||
| 1337 | if ((uch_config < -1) || (uch_config > 31)) { | |
| 1338 | err = -EINVAL; | |
| 1339 | printk(KERN_WARNING DRVNAME ": Invalid UCH configuration %d. " | |
| 1340 | "Choose a value between 0 and 31.\n", uch_config); | |
| 1341 | goto EXIT; | |
| 1342 | } | |
| 1343 | ||
| 1344 | if ((int_mode < -1) || (int_mode > 0)) { | |
| 1345 | err = -EINVAL; | |
| 1346 | printk(KERN_WARNING DRVNAME ": Invalid interrupt mode %d. " | |
| 1347 | "Only mode 0 is supported.\n", int_mode); | |
| 1348 | goto EXIT; | |
| 1349 | } | |
| 1350 | ||
| 1351 | err = platform_driver_register(&vt1211_driver); | |
| 1352 | if (err) { | |
| 1353 | goto EXIT; | |
| 1354 | } | |
| 1355 | ||
| 1356 | /* Sets global pdev as a side effect */ | |
| 1357 | err = vt1211_device_add(address); | |
| 1358 | if (err) { | |
| 1359 | goto EXIT_DRV_UNREGISTER; | |
| 1360 | } | |
| 1361 | ||
| 1362 | return 0; | |
| 1363 | ||
| 1364 | EXIT_DRV_UNREGISTER: | |
| 1365 | platform_driver_unregister(&vt1211_driver); | |
| 1366 | EXIT: | |
| 1367 | return err; | |
| 1368 | } | |
| 1369 | ||
| 1370 | static void __exit vt1211_exit(void) | |
| 1371 | { | |
| 1372 | platform_device_unregister(pdev); | |
| 1373 | platform_driver_unregister(&vt1211_driver); | |
| 1374 | } | |
| 1375 | ||
| 1376 | MODULE_AUTHOR("Juerg Haefliger <juergh@gmail.com>"); | |
| 1377 | MODULE_DESCRIPTION("VT1211 sensors"); | |
| 1378 | MODULE_LICENSE("GPL"); | |
| 1379 | ||
| 1380 | module_init(vt1211_init); | |
| 1381 | module_exit(vt1211_exit); |