diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/thermal/samsung/exynos_thermal_common.c | 445 | ||||
| -rw-r--r-- | drivers/thermal/samsung/exynos_thermal_common.h | 106 |
2 files changed, 0 insertions, 551 deletions
diff --git a/drivers/thermal/samsung/exynos_thermal_common.c b/drivers/thermal/samsung/exynos_thermal_common.c deleted file mode 100644 index 00aa68862a52..000000000000 --- a/drivers/thermal/samsung/exynos_thermal_common.c +++ /dev/null | |||
| @@ -1,445 +0,0 @@ | |||
| 1 | /* | ||
| 2 | * exynos_thermal_common.c - Samsung EXYNOS common thermal file | ||
| 3 | * | ||
| 4 | * Copyright (C) 2013 Samsung Electronics | ||
| 5 | * Amit Daniel Kachhap <amit.daniel@samsung.com> | ||
| 6 | * | ||
| 7 | * This program is free software; you can redistribute it and/or modify | ||
| 8 | * it under the terms of the GNU General Public License as published by | ||
| 9 | * the Free Software Foundation; either version 2 of the License, or | ||
| 10 | * (at your option) any later version. | ||
| 11 | * | ||
| 12 | * This program is distributed in the hope that it will be useful, | ||
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 15 | * GNU General Public License for more details. | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License | ||
| 18 | * along with this program; if not, write to the Free Software | ||
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 20 | * | ||
| 21 | */ | ||
| 22 | |||
| 23 | #include <linux/cpu_cooling.h> | ||
| 24 | #include <linux/err.h> | ||
| 25 | #include <linux/slab.h> | ||
| 26 | #include <linux/thermal.h> | ||
| 27 | |||
| 28 | #include "exynos_thermal_common.h" | ||
| 29 | |||
| 30 | struct exynos_thermal_zone { | ||
| 31 | enum thermal_device_mode mode; | ||
| 32 | struct thermal_zone_device *therm_dev; | ||
| 33 | struct thermal_cooling_device *cool_dev[MAX_COOLING_DEVICE]; | ||
| 34 | unsigned int cool_dev_size; | ||
| 35 | struct platform_device *exynos4_dev; | ||
| 36 | struct thermal_sensor_conf *sensor_conf; | ||
| 37 | bool bind; | ||
| 38 | }; | ||
| 39 | |||
| 40 | /* Get mode callback functions for thermal zone */ | ||
| 41 | static int exynos_get_mode(struct thermal_zone_device *thermal, | ||
| 42 | enum thermal_device_mode *mode) | ||
| 43 | { | ||
| 44 | struct exynos_thermal_zone *th_zone = thermal->devdata; | ||
| 45 | if (th_zone) | ||
| 46 | *mode = th_zone->mode; | ||
| 47 | return 0; | ||
| 48 | } | ||
| 49 | |||
| 50 | /* Set mode callback functions for thermal zone */ | ||
| 51 | static int exynos_set_mode(struct thermal_zone_device *thermal, | ||
| 52 | enum thermal_device_mode mode) | ||
| 53 | { | ||
| 54 | struct exynos_thermal_zone *th_zone = thermal->devdata; | ||
| 55 | if (!th_zone) { | ||
| 56 | dev_err(&thermal->device, | ||
| 57 | "thermal zone not registered\n"); | ||
| 58 | return 0; | ||
| 59 | } | ||
| 60 | |||
| 61 | mutex_lock(&thermal->lock); | ||
| 62 | |||
| 63 | if (mode == THERMAL_DEVICE_ENABLED && | ||
| 64 | !th_zone->sensor_conf->trip_data.trigger_falling) | ||
| 65 | thermal->polling_delay = IDLE_INTERVAL; | ||
| 66 | else | ||
| 67 | thermal->polling_delay = 0; | ||
| 68 | |||
| 69 | mutex_unlock(&thermal->lock); | ||
| 70 | |||
| 71 | th_zone->mode = mode; | ||
| 72 | thermal_zone_device_update(thermal); | ||
| 73 | dev_dbg(th_zone->sensor_conf->dev, | ||
| 74 | "thermal polling set for duration=%d msec\n", | ||
| 75 | thermal->polling_delay); | ||
| 76 | return 0; | ||
| 77 | } | ||
| 78 | |||
| 79 | |||
| 80 | /* Get trip type callback functions for thermal zone */ | ||
| 81 | static int exynos_get_trip_type(struct thermal_zone_device *thermal, int trip, | ||
| 82 | enum thermal_trip_type *type) | ||
| 83 | { | ||
| 84 | struct exynos_thermal_zone *th_zone = thermal->devdata; | ||
| 85 | int max_trip = th_zone->sensor_conf->trip_data.trip_count; | ||
| 86 | int trip_type; | ||
| 87 | |||
| 88 | if (trip < 0 || trip >= max_trip) | ||
| 89 | return -EINVAL; | ||
| 90 | |||
| 91 | trip_type = th_zone->sensor_conf->trip_data.trip_type[trip]; | ||
| 92 | |||
| 93 | if (trip_type == SW_TRIP) | ||
| 94 | *type = THERMAL_TRIP_CRITICAL; | ||
| 95 | else if (trip_type == THROTTLE_ACTIVE) | ||
| 96 | *type = THERMAL_TRIP_ACTIVE; | ||
| 97 | else if (trip_type == THROTTLE_PASSIVE) | ||
| 98 | *type = THERMAL_TRIP_PASSIVE; | ||
| 99 | else | ||
| 100 | return -EINVAL; | ||
| 101 | |||
| 102 | return 0; | ||
| 103 | } | ||
| 104 | |||
| 105 | /* Get trip temperature callback functions for thermal zone */ | ||
| 106 | static int exynos_get_trip_temp(struct thermal_zone_device *thermal, int trip, | ||
| 107 | unsigned long *temp) | ||
| 108 | { | ||
| 109 | struct exynos_thermal_zone *th_zone = thermal->devdata; | ||
| 110 | int max_trip = th_zone->sensor_conf->trip_data.trip_count; | ||
| 111 | |||
| 112 | if (trip < 0 || trip >= max_trip) | ||
| 113 | return -EINVAL; | ||
| 114 | |||
| 115 | *temp = th_zone->sensor_conf->trip_data.trip_val[trip]; | ||
| 116 | /* convert the temperature into millicelsius */ | ||
| 117 | *temp = *temp * MCELSIUS; | ||
| 118 | |||
| 119 | return 0; | ||
| 120 | } | ||
| 121 | |||
| 122 | /* Get critical temperature callback functions for thermal zone */ | ||
| 123 | static int exynos_get_crit_temp(struct thermal_zone_device *thermal, | ||
| 124 | unsigned long *temp) | ||
| 125 | { | ||
| 126 | struct exynos_thermal_zone *th_zone = thermal->devdata; | ||
| 127 | int max_trip = th_zone->sensor_conf->trip_data.trip_count; | ||
| 128 | /* Get the temp of highest trip*/ | ||
| 129 | return exynos_get_trip_temp(thermal, max_trip - 1, temp); | ||
| 130 | } | ||
| 131 | |||
| 132 | /* Bind callback functions for thermal zone */ | ||
| 133 | static int exynos_bind(struct thermal_zone_device *thermal, | ||
| 134 | struct thermal_cooling_device *cdev) | ||
| 135 | { | ||
| 136 | struct exynos_thermal_zone *th_zone = thermal->devdata; | ||
| 137 | struct thermal_sensor_conf *data = th_zone->sensor_conf; | ||
| 138 | struct device_node *child, *gchild, *np; | ||
| 139 | struct of_phandle_args cooling_spec; | ||
| 140 | unsigned long max, state = 0; | ||
| 141 | int ret = 0, i = 0; | ||
| 142 | |||
| 143 | /* | ||
| 144 | * Below code is necessary to skip binding when cpufreq's | ||
| 145 | * frequency table is not yet initialized. | ||
| 146 | */ | ||
| 147 | cdev->ops->get_max_state(cdev, &state); | ||
| 148 | if (!state && !th_zone->cool_dev_size) { | ||
| 149 | th_zone->cool_dev_size = 1; | ||
| 150 | th_zone->cool_dev[0] = cdev; | ||
| 151 | th_zone->bind = false; | ||
| 152 | return 0; | ||
| 153 | } | ||
| 154 | |||
| 155 | np = of_find_node_by_path("/thermal-zones/cpu-thermal"); | ||
| 156 | if (!np) { | ||
| 157 | pr_err("failed to find thmerla-zones/cpu-thermal node\n"); | ||
| 158 | return -ENOENT; | ||
| 159 | } | ||
| 160 | |||
| 161 | child = of_get_child_by_name(np, "cooling-maps"); | ||
| 162 | |||
| 163 | for_each_child_of_node(child, gchild) { | ||
| 164 | ret = of_parse_phandle_with_args(gchild, "cooling-device", | ||
| 165 | "#cooling-cells", | ||
| 166 | 0, &cooling_spec); | ||
| 167 | if (ret < 0) { | ||
| 168 | pr_err("missing cooling_device property\n"); | ||
| 169 | goto end; | ||
| 170 | } | ||
| 171 | |||
| 172 | if (cooling_spec.args_count < 2) { | ||
| 173 | ret = -EINVAL; | ||
| 174 | goto end; | ||
| 175 | } | ||
| 176 | |||
| 177 | max = cooling_spec.args[0]; | ||
| 178 | if (thermal_zone_bind_cooling_device(thermal, i, cdev, | ||
| 179 | max, 0)) { | ||
| 180 | dev_err(data->dev, | ||
| 181 | "thermal error unbinding cdev inst=%d\n", i); | ||
| 182 | |||
| 183 | ret = -EINVAL; | ||
| 184 | goto end; | ||
| 185 | } | ||
| 186 | i++; | ||
| 187 | } | ||
| 188 | th_zone->bind = true; | ||
| 189 | end: | ||
| 190 | of_node_put(child); | ||
| 191 | of_node_put(np); | ||
| 192 | |||
| 193 | return ret; | ||
| 194 | } | ||
| 195 | |||
| 196 | /* Unbind callback functions for thermal zone */ | ||
| 197 | static int exynos_unbind(struct thermal_zone_device *thermal, | ||
| 198 | struct thermal_cooling_device *cdev) | ||
| 199 | { | ||
| 200 | int ret = 0, i; | ||
| 201 | struct exynos_thermal_zone *th_zone = thermal->devdata; | ||
| 202 | struct thermal_sensor_conf *data = th_zone->sensor_conf; | ||
| 203 | struct device_node *child, *gchild, *np; | ||
| 204 | |||
| 205 | if (th_zone->bind == false || !th_zone->cool_dev_size) | ||
| 206 | return 0; | ||
| 207 | |||
| 208 | /* find the cooling device registered*/ | ||
| 209 | for (i = 0; i < th_zone->cool_dev_size; i++) | ||
| 210 | if (cdev == th_zone->cool_dev[i]) | ||
| 211 | break; | ||
| 212 | |||
| 213 | /* No matching cooling device */ | ||
| 214 | if (i == th_zone->cool_dev_size) | ||
| 215 | return 0; | ||
| 216 | |||
| 217 | np = of_find_node_by_path("/thermal-zones/cpu-thermal"); | ||
| 218 | if (!np) { | ||
| 219 | pr_err("failed to find thmerla-zones/cpu-thermal node\n"); | ||
| 220 | return -ENOENT; | ||
| 221 | } | ||
| 222 | |||
| 223 | child = of_get_child_by_name(np, "cooling-maps"); | ||
| 224 | |||
| 225 | i = 0; | ||
| 226 | for_each_child_of_node(child, gchild) { | ||
| 227 | if (thermal_zone_unbind_cooling_device(thermal, i, | ||
| 228 | cdev)) { | ||
| 229 | dev_err(data->dev, | ||
| 230 | "error unbinding cdev inst=%d\n", i); | ||
| 231 | ret = -EINVAL; | ||
| 232 | goto end; | ||
| 233 | } | ||
| 234 | i++; | ||
| 235 | } | ||
| 236 | th_zone->bind = false; | ||
| 237 | end: | ||
| 238 | of_node_put(child); | ||
| 239 | of_node_put(np); | ||
| 240 | |||
| 241 | return ret; | ||
| 242 | } | ||
| 243 | |||
| 244 | /* Get temperature callback functions for thermal zone */ | ||
| 245 | static int exynos_get_temp(struct thermal_zone_device *thermal, | ||
| 246 | unsigned long *temp) | ||
| 247 | { | ||
| 248 | struct exynos_thermal_zone *th_zone = thermal->devdata; | ||
| 249 | void *data; | ||
| 250 | |||
| 251 | if (!th_zone->sensor_conf) { | ||
| 252 | dev_err(&thermal->device, | ||
| 253 | "Temperature sensor not initialised\n"); | ||
| 254 | return -EINVAL; | ||
| 255 | } | ||
| 256 | data = th_zone->sensor_conf->driver_data; | ||
| 257 | *temp = th_zone->sensor_conf->read_temperature(data); | ||
| 258 | /* convert the temperature into millicelsius */ | ||
| 259 | *temp = *temp * MCELSIUS; | ||
| 260 | return 0; | ||
| 261 | } | ||
| 262 | |||
| 263 | /* Get temperature callback functions for thermal zone */ | ||
| 264 | static int exynos_set_emul_temp(struct thermal_zone_device *thermal, | ||
| 265 | unsigned long temp) | ||
| 266 | { | ||
| 267 | void *data; | ||
| 268 | int ret = -EINVAL; | ||
| 269 | struct exynos_thermal_zone *th_zone = thermal->devdata; | ||
| 270 | |||
| 271 | if (!th_zone->sensor_conf) { | ||
| 272 | dev_err(&thermal->device, | ||
| 273 | "Temperature sensor not initialised\n"); | ||
| 274 | return -EINVAL; | ||
| 275 | } | ||
| 276 | data = th_zone->sensor_conf->driver_data; | ||
| 277 | if (th_zone->sensor_conf->write_emul_temp) | ||
| 278 | ret = th_zone->sensor_conf->write_emul_temp(data, temp); | ||
| 279 | return ret; | ||
| 280 | } | ||
| 281 | |||
| 282 | /* Get the temperature trend */ | ||
| 283 | static int exynos_get_trend(struct thermal_zone_device *thermal, | ||
| 284 | int trip, enum thermal_trend *trend) | ||
| 285 | { | ||
| 286 | int ret; | ||
| 287 | unsigned long trip_temp; | ||
| 288 | |||
| 289 | ret = exynos_get_trip_temp(thermal, trip, &trip_temp); | ||
| 290 | if (ret < 0) | ||
| 291 | return ret; | ||
| 292 | |||
| 293 | if (thermal->temperature >= trip_temp) | ||
| 294 | *trend = THERMAL_TREND_RAISE_FULL; | ||
| 295 | else | ||
| 296 | *trend = THERMAL_TREND_DROP_FULL; | ||
| 297 | |||
| 298 | return 0; | ||
| 299 | } | ||
| 300 | /* Operation callback functions for thermal zone */ | ||
| 301 | static struct thermal_zone_device_ops exynos_dev_ops = { | ||
| 302 | .bind = exynos_bind, | ||
| 303 | .unbind = exynos_unbind, | ||
| 304 | .get_temp = exynos_get_temp, | ||
| 305 | .set_emul_temp = exynos_set_emul_temp, | ||
| 306 | .get_trend = exynos_get_trend, | ||
| 307 | .get_mode = exynos_get_mode, | ||
| 308 | .set_mode = exynos_set_mode, | ||
| 309 | .get_trip_type = exynos_get_trip_type, | ||
| 310 | .get_trip_temp = exynos_get_trip_temp, | ||
| 311 | .get_crit_temp = exynos_get_crit_temp, | ||
| 312 | }; | ||
| 313 | |||
| 314 | /* | ||
| 315 | * This function may be called from interrupt based temperature sensor | ||
| 316 | * when threshold is changed. | ||
| 317 | */ | ||
| 318 | void exynos_report_trigger(struct thermal_sensor_conf *conf) | ||
| 319 | { | ||
| 320 | unsigned int i; | ||
| 321 | char data[10]; | ||
| 322 | char *envp[] = { data, NULL }; | ||
| 323 | struct exynos_thermal_zone *th_zone; | ||
| 324 | |||
| 325 | if (!conf || !conf->pzone_data) { | ||
| 326 | pr_err("Invalid temperature sensor configuration data\n"); | ||
| 327 | return; | ||
| 328 | } | ||
| 329 | |||
| 330 | th_zone = conf->pzone_data; | ||
| 331 | |||
| 332 | if (th_zone->bind == false) { | ||
| 333 | for (i = 0; i < th_zone->cool_dev_size; i++) { | ||
| 334 | if (!th_zone->cool_dev[i]) | ||
| 335 | continue; | ||
| 336 | exynos_bind(th_zone->therm_dev, | ||
| 337 | th_zone->cool_dev[i]); | ||
| 338 | } | ||
| 339 | } | ||
| 340 | |||
| 341 | thermal_zone_device_update(th_zone->therm_dev); | ||
| 342 | |||
| 343 | mutex_lock(&th_zone->therm_dev->lock); | ||
| 344 | /* Find the level for which trip happened */ | ||
| 345 | for (i = 0; i < th_zone->sensor_conf->trip_data.trip_count; i++) { | ||
| 346 | if (th_zone->therm_dev->last_temperature < | ||
| 347 | th_zone->sensor_conf->trip_data.trip_val[i] * MCELSIUS) | ||
| 348 | break; | ||
| 349 | } | ||
| 350 | |||
| 351 | if (th_zone->mode == THERMAL_DEVICE_ENABLED && | ||
| 352 | !th_zone->sensor_conf->trip_data.trigger_falling) { | ||
| 353 | if (i > 0) | ||
| 354 | th_zone->therm_dev->polling_delay = ACTIVE_INTERVAL; | ||
| 355 | else | ||
| 356 | th_zone->therm_dev->polling_delay = IDLE_INTERVAL; | ||
| 357 | } | ||
| 358 | |||
| 359 | snprintf(data, sizeof(data), "%u", i); | ||
| 360 | kobject_uevent_env(&th_zone->therm_dev->device.kobj, KOBJ_CHANGE, envp); | ||
| 361 | mutex_unlock(&th_zone->therm_dev->lock); | ||
| 362 | } | ||
| 363 | |||
| 364 | /* Register with the in-kernel thermal management */ | ||
| 365 | int exynos_register_thermal(struct thermal_sensor_conf *sensor_conf) | ||
| 366 | { | ||
| 367 | int ret; | ||
| 368 | struct exynos_thermal_zone *th_zone; | ||
| 369 | |||
| 370 | if (!sensor_conf || !sensor_conf->read_temperature) { | ||
| 371 | pr_err("Temperature sensor not initialised\n"); | ||
| 372 | return -EINVAL; | ||
| 373 | } | ||
| 374 | |||
| 375 | th_zone = devm_kzalloc(sensor_conf->dev, | ||
| 376 | sizeof(struct exynos_thermal_zone), GFP_KERNEL); | ||
| 377 | if (!th_zone) | ||
| 378 | return -ENOMEM; | ||
| 379 | |||
| 380 | th_zone->sensor_conf = sensor_conf; | ||
| 381 | /* | ||
| 382 | * TODO: 1) Handle multiple cooling devices in a thermal zone | ||
| 383 | * 2) Add a flag/name in cooling info to map to specific | ||
| 384 | * sensor | ||
| 385 | */ | ||
| 386 | if (sensor_conf->cooling_data.freq_clip_count > 0) { | ||
| 387 | th_zone->cool_dev[th_zone->cool_dev_size] = | ||
| 388 | cpufreq_cooling_register(cpu_present_mask); | ||
| 389 | if (IS_ERR(th_zone->cool_dev[th_zone->cool_dev_size])) { | ||
| 390 | ret = PTR_ERR(th_zone->cool_dev[th_zone->cool_dev_size]); | ||
| 391 | if (ret != -EPROBE_DEFER) | ||
| 392 | dev_err(sensor_conf->dev, | ||
| 393 | "Failed to register cpufreq cooling device: %d\n", | ||
| 394 | ret); | ||
| 395 | goto err_unregister; | ||
| 396 | } | ||
| 397 | th_zone->cool_dev_size++; | ||
| 398 | } | ||
| 399 | |||
| 400 | th_zone->therm_dev = thermal_zone_device_register( | ||
| 401 | sensor_conf->name, sensor_conf->trip_data.trip_count, | ||
| 402 | 0, th_zone, &exynos_dev_ops, NULL, 0, | ||
| 403 | sensor_conf->trip_data.trigger_falling ? 0 : | ||
| 404 | IDLE_INTERVAL); | ||
| 405 | |||
| 406 | if (IS_ERR(th_zone->therm_dev)) { | ||
| 407 | dev_err(sensor_conf->dev, | ||
| 408 | "Failed to register thermal zone device\n"); | ||
| 409 | ret = PTR_ERR(th_zone->therm_dev); | ||
| 410 | goto err_unregister; | ||
| 411 | } | ||
| 412 | th_zone->mode = THERMAL_DEVICE_ENABLED; | ||
| 413 | sensor_conf->pzone_data = th_zone; | ||
| 414 | |||
| 415 | dev_info(sensor_conf->dev, | ||
| 416 | "Exynos: Thermal zone(%s) registered\n", sensor_conf->name); | ||
| 417 | |||
| 418 | return 0; | ||
| 419 | |||
| 420 | err_unregister: | ||
| 421 | exynos_unregister_thermal(sensor_conf); | ||
| 422 | return ret; | ||
| 423 | } | ||
| 424 | |||
| 425 | /* Un-Register with the in-kernel thermal management */ | ||
| 426 | void exynos_unregister_thermal(struct thermal_sensor_conf *sensor_conf) | ||
| 427 | { | ||
| 428 | int i; | ||
| 429 | struct exynos_thermal_zone *th_zone; | ||
| 430 | |||
| 431 | if (!sensor_conf || !sensor_conf->pzone_data) { | ||
| 432 | pr_err("Invalid temperature sensor configuration data\n"); | ||
| 433 | return; | ||
| 434 | } | ||
| 435 | |||
| 436 | th_zone = sensor_conf->pzone_data; | ||
| 437 | |||
| 438 | thermal_zone_device_unregister(th_zone->therm_dev); | ||
| 439 | |||
| 440 | for (i = 0; i < th_zone->cool_dev_size; ++i) | ||
| 441 | cpufreq_cooling_unregister(th_zone->cool_dev[i]); | ||
| 442 | |||
| 443 | dev_info(sensor_conf->dev, | ||
| 444 | "Exynos: Kernel Thermal management unregistered\n"); | ||
| 445 | } | ||
diff --git a/drivers/thermal/samsung/exynos_thermal_common.h b/drivers/thermal/samsung/exynos_thermal_common.h deleted file mode 100644 index cd4471925cdd..000000000000 --- a/drivers/thermal/samsung/exynos_thermal_common.h +++ /dev/null | |||
| @@ -1,106 +0,0 @@ | |||
| 1 | /* | ||
| 2 | * exynos_thermal_common.h - Samsung EXYNOS common header file | ||
| 3 | * | ||
| 4 | * Copyright (C) 2013 Samsung Electronics | ||
| 5 | * Amit Daniel Kachhap <amit.daniel@samsung.com> | ||
| 6 | * | ||
| 7 | * This program is free software; you can redistribute it and/or modify | ||
| 8 | * it under the terms of the GNU General Public License as published by | ||
| 9 | * the Free Software Foundation; either version 2 of the License, or | ||
| 10 | * (at your option) any later version. | ||
| 11 | * | ||
| 12 | * This program is distributed in the hope that it will be useful, | ||
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 15 | * GNU General Public License for more details. | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License | ||
| 18 | * along with this program; if not, write to the Free Software | ||
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 20 | * | ||
| 21 | */ | ||
| 22 | |||
| 23 | #ifndef _EXYNOS_THERMAL_COMMON_H | ||
| 24 | #define _EXYNOS_THERMAL_COMMON_H | ||
| 25 | |||
| 26 | /* In-kernel thermal framework related macros & definations */ | ||
| 27 | #define SENSOR_NAME_LEN 16 | ||
| 28 | #define MAX_TRIP_COUNT 8 | ||
| 29 | #define MAX_COOLING_DEVICE 4 | ||
| 30 | |||
| 31 | #define ACTIVE_INTERVAL 500 | ||
| 32 | #define IDLE_INTERVAL 10000 | ||
| 33 | #define MCELSIUS 1000 | ||
| 34 | |||
| 35 | /* CPU Zone information */ | ||
| 36 | #define PANIC_ZONE 4 | ||
| 37 | #define WARN_ZONE 3 | ||
| 38 | #define MONITOR_ZONE 2 | ||
| 39 | #define SAFE_ZONE 1 | ||
| 40 | |||
| 41 | #define GET_ZONE(trip) (trip + 2) | ||
| 42 | #define GET_TRIP(zone) (zone - 2) | ||
| 43 | |||
| 44 | enum trigger_type { | ||
| 45 | THROTTLE_ACTIVE = 1, | ||
| 46 | THROTTLE_PASSIVE, | ||
| 47 | SW_TRIP, | ||
| 48 | HW_TRIP, | ||
| 49 | }; | ||
| 50 | |||
| 51 | /** | ||
| 52 | * struct freq_clip_table | ||
| 53 | * @freq_clip_max: maximum frequency allowed for this cooling state. | ||
| 54 | * @temp_level: Temperature level at which the temperature clipping will | ||
| 55 | * happen. | ||
| 56 | * @mask_val: cpumask of the allowed cpu's where the clipping will take place. | ||
| 57 | * | ||
| 58 | * This structure is required to be filled and passed to the | ||
| 59 | * cpufreq_cooling_unregister function. | ||
| 60 | */ | ||
| 61 | struct freq_clip_table { | ||
| 62 | unsigned int freq_clip_max; | ||
| 63 | unsigned int temp_level; | ||
| 64 | const struct cpumask *mask_val; | ||
| 65 | }; | ||
| 66 | |||
| 67 | struct thermal_trip_point_conf { | ||
| 68 | int trip_val[MAX_TRIP_COUNT]; | ||
| 69 | int trip_type[MAX_TRIP_COUNT]; | ||
| 70 | int trip_count; | ||
| 71 | unsigned char trigger_falling; | ||
| 72 | }; | ||
| 73 | |||
| 74 | struct thermal_cooling_conf { | ||
| 75 | struct freq_clip_table freq_data[MAX_TRIP_COUNT]; | ||
| 76 | int freq_clip_count; | ||
| 77 | }; | ||
| 78 | |||
| 79 | struct thermal_sensor_conf { | ||
| 80 | char name[SENSOR_NAME_LEN]; | ||
| 81 | int (*read_temperature)(void *data); | ||
| 82 | int (*write_emul_temp)(void *drv_data, unsigned long temp); | ||
| 83 | struct thermal_trip_point_conf trip_data; | ||
| 84 | struct thermal_cooling_conf cooling_data; | ||
| 85 | void *driver_data; | ||
| 86 | void *pzone_data; | ||
| 87 | struct device *dev; | ||
| 88 | }; | ||
| 89 | |||
| 90 | /*Functions used exynos based thermal sensor driver*/ | ||
| 91 | #ifdef CONFIG_EXYNOS_THERMAL_CORE | ||
| 92 | void exynos_unregister_thermal(struct thermal_sensor_conf *sensor_conf); | ||
| 93 | int exynos_register_thermal(struct thermal_sensor_conf *sensor_conf); | ||
| 94 | void exynos_report_trigger(struct thermal_sensor_conf *sensor_conf); | ||
| 95 | #else | ||
| 96 | static inline void | ||
| 97 | exynos_unregister_thermal(struct thermal_sensor_conf *sensor_conf) { return; } | ||
| 98 | |||
| 99 | static inline int | ||
| 100 | exynos_register_thermal(struct thermal_sensor_conf *sensor_conf) { return 0; } | ||
| 101 | |||
| 102 | static inline void | ||
| 103 | exynos_report_trigger(struct thermal_sensor_conf *sensor_conf) { return; } | ||
| 104 | |||
| 105 | #endif /* CONFIG_EXYNOS_THERMAL_CORE */ | ||
| 106 | #endif /* _EXYNOS_THERMAL_COMMON_H */ | ||
