Rich Townsend | 3f86b83 | 2006-07-01 11:36:54 -0400 | [diff] [blame^] | 1 | /* |
| 2 | * acpi_sbs.c - ACPI Smart Battery System Driver ($Revision: 1.16 $) |
| 3 | * |
| 4 | * Copyright (c) 2005 Rich Townsend <rhdt@bartol.udel.edu> |
| 5 | * |
| 6 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or (at |
| 11 | * your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, but |
| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License along |
| 19 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 20 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
| 21 | * |
| 22 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 23 | */ |
| 24 | |
| 25 | #include <linux/init.h> |
| 26 | #include <linux/module.h> |
| 27 | #include <linux/moduleparam.h> |
| 28 | #include <linux/kernel.h> |
| 29 | #include <linux/proc_fs.h> |
| 30 | #include <linux/seq_file.h> |
| 31 | #include <asm/uaccess.h> |
| 32 | #include <linux/acpi.h> |
| 33 | #include <linux/i2c.h> |
| 34 | #include <linux/delay.h> |
| 35 | |
| 36 | #include "i2c_ec.h" |
| 37 | |
| 38 | #define DEF_CAPACITY_UNIT 3 |
| 39 | #define MAH_CAPACITY_UNIT 1 |
| 40 | #define MWH_CAPACITY_UNIT 2 |
| 41 | #define CAPACITY_UNIT DEF_CAPACITY_UNIT |
| 42 | |
| 43 | #define REQUEST_UPDATE_MODE 1 |
| 44 | #define QUEUE_UPDATE_MODE 2 |
| 45 | |
| 46 | #define DATA_TYPE_COMMON 0 |
| 47 | #define DATA_TYPE_INFO 1 |
| 48 | #define DATA_TYPE_STATE 2 |
| 49 | #define DATA_TYPE_ALARM 3 |
| 50 | #define DATA_TYPE_AC_STATE 4 |
| 51 | |
| 52 | extern struct proc_dir_entry *acpi_lock_ac_dir(void); |
| 53 | extern struct proc_dir_entry *acpi_lock_battery_dir(void); |
| 54 | extern void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir); |
| 55 | extern void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir); |
| 56 | |
| 57 | #define ACPI_SBS_COMPONENT 0x00080000 |
| 58 | #define ACPI_SBS_CLASS "sbs" |
| 59 | #define ACPI_AC_CLASS "ac_adapter" |
| 60 | #define ACPI_BATTERY_CLASS "battery" |
| 61 | #define ACPI_SBS_HID "ACPI0002" |
| 62 | #define ACPI_SBS_DRIVER_NAME "ACPI Smart Battery System Driver" |
| 63 | #define ACPI_SBS_DEVICE_NAME "Smart Battery System" |
| 64 | #define ACPI_SBS_FILE_INFO "info" |
| 65 | #define ACPI_SBS_FILE_STATE "state" |
| 66 | #define ACPI_SBS_FILE_ALARM "alarm" |
| 67 | #define ACPI_BATTERY_DIR_NAME "BAT%i" |
| 68 | #define ACPI_AC_DIR_NAME "AC0" |
| 69 | #define ACPI_SBC_SMBUS_ADDR 0x9 |
| 70 | #define ACPI_SBSM_SMBUS_ADDR 0xa |
| 71 | #define ACPI_SB_SMBUS_ADDR 0xb |
| 72 | #define ACPI_SBS_AC_NOTIFY_STATUS 0x80 |
| 73 | #define ACPI_SBS_BATTERY_NOTIFY_STATUS 0x80 |
| 74 | #define ACPI_SBS_BATTERY_NOTIFY_INFO 0x81 |
| 75 | |
| 76 | #define _COMPONENT ACPI_SBS_COMPONENT |
| 77 | |
| 78 | #define MAX_SBS_BAT 4 |
| 79 | #define MAX_SMBUS_ERR 1 |
| 80 | |
| 81 | ACPI_MODULE_NAME("acpi_sbs"); |
| 82 | |
| 83 | MODULE_AUTHOR("Rich Townsend"); |
| 84 | MODULE_DESCRIPTION("Smart Battery System ACPI interface driver"); |
| 85 | MODULE_LICENSE("GPL"); |
| 86 | |
| 87 | static struct semaphore sbs_sem; |
| 88 | |
| 89 | #define UPDATE_MODE QUEUE_UPDATE_MODE |
| 90 | /* REQUEST_UPDATE_MODE QUEUE_UPDATE_MODE */ |
| 91 | #define UPDATE_INFO_MODE 0 |
| 92 | #define UPDATE_TIME 60 |
| 93 | #define UPDATE_TIME2 0 |
| 94 | |
| 95 | static int capacity_mode = CAPACITY_UNIT; |
| 96 | static int update_mode = UPDATE_MODE; |
| 97 | static int update_info_mode = UPDATE_INFO_MODE; |
| 98 | static int update_time = UPDATE_TIME; |
| 99 | static int update_time2 = UPDATE_TIME2; |
| 100 | |
| 101 | module_param(capacity_mode, int, CAPACITY_UNIT); |
| 102 | module_param(update_mode, int, UPDATE_MODE); |
| 103 | module_param(update_info_mode, int, UPDATE_INFO_MODE); |
| 104 | module_param(update_time, int, UPDATE_TIME); |
| 105 | module_param(update_time2, int, UPDATE_TIME2); |
| 106 | |
| 107 | static int acpi_sbs_add(struct acpi_device *device); |
| 108 | static int acpi_sbs_remove(struct acpi_device *device, int type); |
| 109 | static void acpi_battery_smbus_err_handler(struct acpi_ec_smbus *smbus); |
| 110 | static void acpi_sbs_update_queue(void *data); |
| 111 | |
| 112 | static struct acpi_driver acpi_sbs_driver = { |
| 113 | .name = ACPI_SBS_DRIVER_NAME, |
| 114 | .class = ACPI_SBS_CLASS, |
| 115 | .ids = ACPI_SBS_HID, |
| 116 | .ops = { |
| 117 | .add = acpi_sbs_add, |
| 118 | .remove = acpi_sbs_remove, |
| 119 | }, |
| 120 | }; |
| 121 | |
| 122 | struct acpi_battery_info { |
| 123 | int capacity_mode; |
| 124 | s16 full_charge_capacity; |
| 125 | s16 design_capacity; |
| 126 | s16 design_voltage; |
| 127 | int vscale; |
| 128 | int ipscale; |
| 129 | s16 serial_number; |
| 130 | char manufacturer_name[I2C_SMBUS_BLOCK_MAX + 3]; |
| 131 | char device_name[I2C_SMBUS_BLOCK_MAX + 3]; |
| 132 | char device_chemistry[I2C_SMBUS_BLOCK_MAX + 3]; |
| 133 | }; |
| 134 | |
| 135 | struct acpi_battery_state { |
| 136 | s16 voltage; |
| 137 | s16 amperage; |
| 138 | s16 remaining_capacity; |
| 139 | s16 average_time_to_empty; |
| 140 | s16 average_time_to_full; |
| 141 | s16 battery_status; |
| 142 | }; |
| 143 | |
| 144 | struct acpi_battery_alarm { |
| 145 | s16 remaining_capacity; |
| 146 | }; |
| 147 | |
| 148 | struct acpi_battery { |
| 149 | int alive; |
| 150 | int battery_present; |
| 151 | int id; |
| 152 | int init_state; |
| 153 | struct acpi_sbs *sbs; |
| 154 | struct acpi_battery_info info; |
| 155 | struct acpi_battery_state state; |
| 156 | struct acpi_battery_alarm alarm; |
| 157 | struct proc_dir_entry *battery_entry; |
| 158 | }; |
| 159 | |
| 160 | struct acpi_sbs { |
| 161 | acpi_handle handle; |
| 162 | struct acpi_device *device; |
| 163 | struct acpi_ec_smbus *smbus; |
| 164 | int sbsm_present; |
| 165 | int sbsm_batteries_supported; |
| 166 | int ac_present; |
| 167 | struct proc_dir_entry *ac_entry; |
| 168 | struct acpi_battery battery[MAX_SBS_BAT]; |
| 169 | int update_info_mode; |
| 170 | int zombie; |
| 171 | int update_time; |
| 172 | int update_time2; |
| 173 | struct timer_list update_timer; |
| 174 | }; |
| 175 | |
| 176 | static void acpi_update_delay(struct acpi_sbs *sbs); |
| 177 | static int acpi_sbs_update_run(struct acpi_sbs *sbs, int data_type); |
| 178 | |
| 179 | /* -------------------------------------------------------------------------- |
| 180 | SMBus Communication |
| 181 | -------------------------------------------------------------------------- */ |
| 182 | |
| 183 | static void acpi_battery_smbus_err_handler(struct acpi_ec_smbus *smbus) |
| 184 | { |
| 185 | union i2c_smbus_data data; |
| 186 | int result = 0; |
| 187 | char *err_str; |
| 188 | int err_number; |
| 189 | |
| 190 | ACPI_FUNCTION_TRACE("acpi_battery_smbus_err_handler"); |
| 191 | |
| 192 | data.word = 0; |
| 193 | |
| 194 | result = smbus->adapter.algo-> |
| 195 | smbus_xfer(&smbus->adapter, |
| 196 | ACPI_SB_SMBUS_ADDR, |
| 197 | 0, I2C_SMBUS_READ, 0x16, I2C_SMBUS_BLOCK_DATA, &data); |
| 198 | |
| 199 | err_number = (data.word & 0x000f); |
| 200 | |
| 201 | switch (data.word & 0x000f) { |
| 202 | case 0x0000: |
| 203 | err_str = "unexpected bus error"; |
| 204 | break; |
| 205 | case 0x0001: |
| 206 | err_str = "busy"; |
| 207 | break; |
| 208 | case 0x0002: |
| 209 | err_str = "reserved command"; |
| 210 | break; |
| 211 | case 0x0003: |
| 212 | err_str = "unsupported command"; |
| 213 | break; |
| 214 | case 0x0004: |
| 215 | err_str = "access denied"; |
| 216 | break; |
| 217 | case 0x0005: |
| 218 | err_str = "overflow/underflow"; |
| 219 | break; |
| 220 | case 0x0006: |
| 221 | err_str = "bad size"; |
| 222 | break; |
| 223 | case 0x0007: |
| 224 | err_str = "unknown error"; |
| 225 | break; |
| 226 | default: |
| 227 | err_str = "unrecognized error"; |
| 228 | } |
| 229 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 230 | "%s: ret %i, err %i\n", err_str, result, err_number)); |
| 231 | } |
| 232 | |
| 233 | static int |
| 234 | acpi_sbs_smbus_read_word(struct acpi_ec_smbus *smbus, int addr, int func, |
| 235 | u16 * word, |
| 236 | void (*err_handler) (struct acpi_ec_smbus * smbus)) |
| 237 | { |
| 238 | union i2c_smbus_data data; |
| 239 | int result = 0; |
| 240 | int i; |
| 241 | |
| 242 | ACPI_FUNCTION_TRACE("acpi_sbs_smbus_read_word"); |
| 243 | |
| 244 | if (err_handler == NULL) { |
| 245 | err_handler = acpi_battery_smbus_err_handler; |
| 246 | } |
| 247 | |
| 248 | for (i = 0; i < MAX_SMBUS_ERR; i++) { |
| 249 | result = |
| 250 | smbus->adapter.algo->smbus_xfer(&smbus->adapter, addr, 0, |
| 251 | I2C_SMBUS_READ, func, |
| 252 | I2C_SMBUS_WORD_DATA, &data); |
| 253 | if (result) { |
| 254 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 255 | "try %i: smbus->adapter.algo->smbus_xfer() failed\n", |
| 256 | i)); |
| 257 | if (err_handler) { |
| 258 | err_handler(smbus); |
| 259 | } |
| 260 | } else { |
| 261 | *word = data.word; |
| 262 | break; |
| 263 | } |
| 264 | } |
| 265 | |
| 266 | return_VALUE(result); |
| 267 | } |
| 268 | |
| 269 | static int |
| 270 | acpi_sbs_smbus_read_str(struct acpi_ec_smbus *smbus, int addr, int func, |
| 271 | char *str, |
| 272 | void (*err_handler) (struct acpi_ec_smbus * smbus)) |
| 273 | { |
| 274 | union i2c_smbus_data data; |
| 275 | int result = 0; |
| 276 | int i; |
| 277 | |
| 278 | ACPI_FUNCTION_TRACE("acpi_sbs_smbus_read_str"); |
| 279 | |
| 280 | if (err_handler == NULL) { |
| 281 | err_handler = acpi_battery_smbus_err_handler; |
| 282 | } |
| 283 | |
| 284 | for (i = 0; i < MAX_SMBUS_ERR; i++) { |
| 285 | result = |
| 286 | smbus->adapter.algo->smbus_xfer(&smbus->adapter, addr, 0, |
| 287 | I2C_SMBUS_READ, func, |
| 288 | I2C_SMBUS_BLOCK_DATA, |
| 289 | &data); |
| 290 | if (result) { |
| 291 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 292 | "try %i: smbus->adapter.algo->smbus_xfer() failed\n", |
| 293 | i)); |
| 294 | if (err_handler) { |
| 295 | err_handler(smbus); |
| 296 | } |
| 297 | } else { |
| 298 | strncpy(str, (const char *)data.block + 1, |
| 299 | data.block[0]); |
| 300 | str[data.block[0]] = 0; |
| 301 | break; |
| 302 | } |
| 303 | } |
| 304 | |
| 305 | return_VALUE(result); |
| 306 | } |
| 307 | |
| 308 | static int |
| 309 | acpi_sbs_smbus_write_word(struct acpi_ec_smbus *smbus, int addr, int func, |
| 310 | int word, |
| 311 | void (*err_handler) (struct acpi_ec_smbus * smbus)) |
| 312 | { |
| 313 | union i2c_smbus_data data; |
| 314 | int result = 0; |
| 315 | int i; |
| 316 | |
| 317 | ACPI_FUNCTION_TRACE("acpi_sbs_smbus_write_word"); |
| 318 | |
| 319 | if (err_handler == NULL) { |
| 320 | err_handler = acpi_battery_smbus_err_handler; |
| 321 | } |
| 322 | |
| 323 | data.word = word; |
| 324 | |
| 325 | for (i = 0; i < MAX_SMBUS_ERR; i++) { |
| 326 | result = |
| 327 | smbus->adapter.algo->smbus_xfer(&smbus->adapter, addr, 0, |
| 328 | I2C_SMBUS_WRITE, func, |
| 329 | I2C_SMBUS_WORD_DATA, &data); |
| 330 | if (result) { |
| 331 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 332 | "try %i: smbus->adapter.algo" |
| 333 | "->smbus_xfer() failed\n", i)); |
| 334 | if (err_handler) { |
| 335 | err_handler(smbus); |
| 336 | } |
| 337 | } else { |
| 338 | break; |
| 339 | } |
| 340 | } |
| 341 | |
| 342 | return_VALUE(result); |
| 343 | } |
| 344 | |
| 345 | /* -------------------------------------------------------------------------- |
| 346 | Smart Battery System Management |
| 347 | -------------------------------------------------------------------------- */ |
| 348 | |
| 349 | /* Smart Battery */ |
| 350 | |
| 351 | static int acpi_sbs_generate_event(struct acpi_device *device, |
| 352 | int event, int state, char *bid, char *class) |
| 353 | { |
| 354 | char bid_saved[5]; |
| 355 | char class_saved[20]; |
| 356 | int result = 0; |
| 357 | |
| 358 | ACPI_FUNCTION_TRACE("acpi_sbs_generate_event"); |
| 359 | |
| 360 | strcpy(bid_saved, acpi_device_bid(device)); |
| 361 | strcpy(class_saved, acpi_device_class(device)); |
| 362 | |
| 363 | strcpy(acpi_device_bid(device), bid); |
| 364 | strcpy(acpi_device_class(device), class); |
| 365 | |
| 366 | result = acpi_bus_generate_event(device, event, state); |
| 367 | |
| 368 | strcpy(acpi_device_bid(device), bid_saved); |
| 369 | strcpy(acpi_device_class(device), class_saved); |
| 370 | |
| 371 | return_VALUE(result); |
| 372 | } |
| 373 | |
| 374 | static int acpi_battery_get_present(struct acpi_battery *battery) |
| 375 | { |
| 376 | s16 state; |
| 377 | int result = 0; |
| 378 | int is_present = 0; |
| 379 | |
| 380 | ACPI_FUNCTION_TRACE("acpi_battery_get_present"); |
| 381 | |
| 382 | result = acpi_sbs_smbus_read_word(battery->sbs->smbus, |
| 383 | ACPI_SBSM_SMBUS_ADDR, 0x01, |
| 384 | &state, NULL); |
| 385 | if (result) { |
| 386 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 387 | "acpi_sbs_smbus_read_word() failed")); |
| 388 | } |
| 389 | if (!result) { |
| 390 | is_present = (state & 0x000f) & (1 << battery->id); |
| 391 | } |
| 392 | battery->battery_present = is_present; |
| 393 | |
| 394 | return_VALUE(result); |
| 395 | } |
| 396 | |
| 397 | static int acpi_battery_is_present(struct acpi_battery *battery) |
| 398 | { |
| 399 | return (battery->battery_present); |
| 400 | } |
| 401 | |
| 402 | static int acpi_ac_is_present(struct acpi_sbs *sbs) |
| 403 | { |
| 404 | return (sbs->ac_present); |
| 405 | } |
| 406 | |
| 407 | static int acpi_battery_select(struct acpi_battery *battery) |
| 408 | { |
| 409 | struct acpi_ec_smbus *smbus = battery->sbs->smbus; |
| 410 | int result = 0; |
| 411 | s16 state; |
| 412 | int foo; |
| 413 | |
| 414 | ACPI_FUNCTION_TRACE("acpi_battery_select"); |
| 415 | |
| 416 | if (battery->sbs->sbsm_present) { |
| 417 | |
| 418 | /* Take special care not to knobble other nibbles of |
| 419 | * state (aka selector_state), since |
| 420 | * it causes charging to halt on SBSELs */ |
| 421 | |
| 422 | result = |
| 423 | acpi_sbs_smbus_read_word(smbus, ACPI_SBSM_SMBUS_ADDR, 0x01, |
| 424 | &state, NULL); |
| 425 | if (result) { |
| 426 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 427 | "acpi_sbs_smbus_read_word() failed\n")); |
| 428 | goto end; |
| 429 | } |
| 430 | |
| 431 | foo = (state & 0x0fff) | (1 << (battery->id + 12)); |
| 432 | result = |
| 433 | acpi_sbs_smbus_write_word(smbus, ACPI_SBSM_SMBUS_ADDR, 0x01, |
| 434 | foo, NULL); |
| 435 | if (result) { |
| 436 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 437 | "acpi_sbs_smbus_write_word() failed\n")); |
| 438 | goto end; |
| 439 | } |
| 440 | } |
| 441 | |
| 442 | end: |
| 443 | return_VALUE(result); |
| 444 | } |
| 445 | |
| 446 | static int acpi_sbsm_get_info(struct acpi_sbs *sbs) |
| 447 | { |
| 448 | struct acpi_ec_smbus *smbus = sbs->smbus; |
| 449 | int result = 0; |
| 450 | s16 battery_system_info; |
| 451 | |
| 452 | ACPI_FUNCTION_TRACE("acpi_sbsm_get_info"); |
| 453 | |
| 454 | result = acpi_sbs_smbus_read_word(smbus, ACPI_SBSM_SMBUS_ADDR, 0x04, |
| 455 | &battery_system_info, NULL); |
| 456 | if (result) { |
| 457 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 458 | "acpi_sbs_smbus_read_word() failed\n")); |
| 459 | goto end; |
| 460 | } |
| 461 | |
| 462 | sbs->sbsm_batteries_supported = battery_system_info & 0x000f; |
| 463 | |
| 464 | end: |
| 465 | |
| 466 | return_VALUE(result); |
| 467 | } |
| 468 | |
| 469 | static int acpi_battery_get_info(struct acpi_battery *battery) |
| 470 | { |
| 471 | struct acpi_ec_smbus *smbus = battery->sbs->smbus; |
| 472 | int result = 0; |
| 473 | s16 battery_mode; |
| 474 | s16 specification_info; |
| 475 | |
| 476 | ACPI_FUNCTION_TRACE("acpi_battery_get_info"); |
| 477 | |
| 478 | result = acpi_sbs_smbus_read_word(smbus, ACPI_SB_SMBUS_ADDR, 0x03, |
| 479 | &battery_mode, |
| 480 | &acpi_battery_smbus_err_handler); |
| 481 | if (result) { |
| 482 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 483 | "acpi_sbs_smbus_read_word() failed\n")); |
| 484 | goto end; |
| 485 | } |
| 486 | battery->info.capacity_mode = (battery_mode & 0x8000) >> 15; |
| 487 | |
| 488 | result = acpi_sbs_smbus_read_word(smbus, ACPI_SB_SMBUS_ADDR, 0x10, |
| 489 | &battery->info.full_charge_capacity, |
| 490 | &acpi_battery_smbus_err_handler); |
| 491 | if (result) { |
| 492 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 493 | "acpi_sbs_smbus_read_word() failed\n")); |
| 494 | goto end; |
| 495 | } |
| 496 | |
| 497 | result = acpi_sbs_smbus_read_word(smbus, ACPI_SB_SMBUS_ADDR, 0x18, |
| 498 | &battery->info.design_capacity, |
| 499 | &acpi_battery_smbus_err_handler); |
| 500 | |
| 501 | if (result) { |
| 502 | goto end; |
| 503 | } |
| 504 | |
| 505 | result = acpi_sbs_smbus_read_word(smbus, ACPI_SB_SMBUS_ADDR, 0x19, |
| 506 | &battery->info.design_voltage, |
| 507 | &acpi_battery_smbus_err_handler); |
| 508 | if (result) { |
| 509 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 510 | "acpi_sbs_smbus_read_word() failed\n")); |
| 511 | goto end; |
| 512 | } |
| 513 | |
| 514 | result = acpi_sbs_smbus_read_word(smbus, ACPI_SB_SMBUS_ADDR, 0x1a, |
| 515 | &specification_info, |
| 516 | &acpi_battery_smbus_err_handler); |
| 517 | if (result) { |
| 518 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 519 | "acpi_sbs_smbus_read_word() failed\n")); |
| 520 | goto end; |
| 521 | } |
| 522 | |
| 523 | switch ((specification_info & 0x0f00) >> 8) { |
| 524 | case 1: |
| 525 | battery->info.vscale = 10; |
| 526 | break; |
| 527 | case 2: |
| 528 | battery->info.vscale = 100; |
| 529 | break; |
| 530 | case 3: |
| 531 | battery->info.vscale = 1000; |
| 532 | break; |
| 533 | default: |
| 534 | battery->info.vscale = 1; |
| 535 | } |
| 536 | |
| 537 | switch ((specification_info & 0xf000) >> 12) { |
| 538 | case 1: |
| 539 | battery->info.ipscale = 10; |
| 540 | break; |
| 541 | case 2: |
| 542 | battery->info.ipscale = 100; |
| 543 | break; |
| 544 | case 3: |
| 545 | battery->info.ipscale = 1000; |
| 546 | break; |
| 547 | default: |
| 548 | battery->info.ipscale = 1; |
| 549 | } |
| 550 | |
| 551 | result = acpi_sbs_smbus_read_word(smbus, ACPI_SB_SMBUS_ADDR, 0x1c, |
| 552 | &battery->info.serial_number, |
| 553 | &acpi_battery_smbus_err_handler); |
| 554 | if (result) { |
| 555 | goto end; |
| 556 | } |
| 557 | |
| 558 | result = acpi_sbs_smbus_read_str(smbus, ACPI_SB_SMBUS_ADDR, 0x20, |
| 559 | battery->info.manufacturer_name, |
| 560 | &acpi_battery_smbus_err_handler); |
| 561 | if (result) { |
| 562 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 563 | "acpi_sbs_smbus_read_str() failed\n")); |
| 564 | goto end; |
| 565 | } |
| 566 | |
| 567 | result = acpi_sbs_smbus_read_str(smbus, ACPI_SB_SMBUS_ADDR, 0x21, |
| 568 | battery->info.device_name, |
| 569 | &acpi_battery_smbus_err_handler); |
| 570 | if (result) { |
| 571 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 572 | "acpi_sbs_smbus_read_str() failed\n")); |
| 573 | goto end; |
| 574 | } |
| 575 | |
| 576 | result = acpi_sbs_smbus_read_str(smbus, ACPI_SB_SMBUS_ADDR, 0x22, |
| 577 | battery->info.device_chemistry, |
| 578 | &acpi_battery_smbus_err_handler); |
| 579 | if (result) { |
| 580 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 581 | "acpi_sbs_smbus_read_str() failed\n")); |
| 582 | goto end; |
| 583 | } |
| 584 | |
| 585 | end: |
| 586 | return_VALUE(result); |
| 587 | } |
| 588 | |
| 589 | static void acpi_update_delay(struct acpi_sbs *sbs) |
| 590 | { |
| 591 | ACPI_FUNCTION_TRACE("acpi_update_delay"); |
| 592 | if (sbs->zombie) { |
| 593 | return; |
| 594 | } |
| 595 | if (sbs->update_time2 > 0) { |
| 596 | msleep(sbs->update_time2 * 1000); |
| 597 | } |
| 598 | } |
| 599 | |
| 600 | static int acpi_battery_get_state(struct acpi_battery *battery) |
| 601 | { |
| 602 | struct acpi_ec_smbus *smbus = battery->sbs->smbus; |
| 603 | int result = 0; |
| 604 | |
| 605 | ACPI_FUNCTION_TRACE("acpi_battery_get_state"); |
| 606 | |
| 607 | acpi_update_delay(battery->sbs); |
| 608 | result = acpi_sbs_smbus_read_word(smbus, ACPI_SB_SMBUS_ADDR, 0x09, |
| 609 | &battery->state.voltage, |
| 610 | &acpi_battery_smbus_err_handler); |
| 611 | if (result) { |
| 612 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 613 | "acpi_sbs_smbus_read_word() failed\n")); |
| 614 | goto end; |
| 615 | } |
| 616 | |
| 617 | acpi_update_delay(battery->sbs); |
| 618 | result = acpi_sbs_smbus_read_word(smbus, ACPI_SB_SMBUS_ADDR, 0x0a, |
| 619 | &battery->state.amperage, |
| 620 | &acpi_battery_smbus_err_handler); |
| 621 | if (result) { |
| 622 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 623 | "acpi_sbs_smbus_read_word() failed\n")); |
| 624 | goto end; |
| 625 | } |
| 626 | |
| 627 | acpi_update_delay(battery->sbs); |
| 628 | result = acpi_sbs_smbus_read_word(smbus, ACPI_SB_SMBUS_ADDR, 0x0f, |
| 629 | &battery->state.remaining_capacity, |
| 630 | &acpi_battery_smbus_err_handler); |
| 631 | if (result) { |
| 632 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 633 | "acpi_sbs_smbus_read_word() failed\n")); |
| 634 | goto end; |
| 635 | } |
| 636 | |
| 637 | acpi_update_delay(battery->sbs); |
| 638 | result = acpi_sbs_smbus_read_word(smbus, ACPI_SB_SMBUS_ADDR, 0x12, |
| 639 | &battery->state.average_time_to_empty, |
| 640 | &acpi_battery_smbus_err_handler); |
| 641 | if (result) { |
| 642 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 643 | "acpi_sbs_smbus_read_word() failed\n")); |
| 644 | goto end; |
| 645 | } |
| 646 | |
| 647 | acpi_update_delay(battery->sbs); |
| 648 | result = acpi_sbs_smbus_read_word(smbus, ACPI_SB_SMBUS_ADDR, 0x13, |
| 649 | &battery->state.average_time_to_full, |
| 650 | &acpi_battery_smbus_err_handler); |
| 651 | if (result) { |
| 652 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 653 | "acpi_sbs_smbus_read_word() failed\n")); |
| 654 | goto end; |
| 655 | } |
| 656 | |
| 657 | acpi_update_delay(battery->sbs); |
| 658 | result = acpi_sbs_smbus_read_word(smbus, ACPI_SB_SMBUS_ADDR, 0x16, |
| 659 | &battery->state.battery_status, |
| 660 | &acpi_battery_smbus_err_handler); |
| 661 | if (result) { |
| 662 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 663 | "acpi_sbs_smbus_read_word() failed\n")); |
| 664 | goto end; |
| 665 | } |
| 666 | |
| 667 | acpi_update_delay(battery->sbs); |
| 668 | |
| 669 | end: |
| 670 | return_VALUE(result); |
| 671 | } |
| 672 | |
| 673 | static int acpi_battery_get_alarm(struct acpi_battery *battery) |
| 674 | { |
| 675 | struct acpi_ec_smbus *smbus = battery->sbs->smbus; |
| 676 | int result = 0; |
| 677 | |
| 678 | ACPI_FUNCTION_TRACE("acpi_battery_get_alarm"); |
| 679 | |
| 680 | result = acpi_sbs_smbus_read_word(smbus, ACPI_SB_SMBUS_ADDR, 0x01, |
| 681 | &battery->alarm.remaining_capacity, |
| 682 | &acpi_battery_smbus_err_handler); |
| 683 | if (result) { |
| 684 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 685 | "acpi_sbs_smbus_read_word() failed\n")); |
| 686 | goto end; |
| 687 | } |
| 688 | |
| 689 | acpi_update_delay(battery->sbs); |
| 690 | |
| 691 | end: |
| 692 | |
| 693 | return_VALUE(result); |
| 694 | } |
| 695 | |
| 696 | static int acpi_battery_set_alarm(struct acpi_battery *battery, |
| 697 | unsigned long alarm) |
| 698 | { |
| 699 | struct acpi_ec_smbus *smbus = battery->sbs->smbus; |
| 700 | int result = 0; |
| 701 | s16 battery_mode; |
| 702 | int foo; |
| 703 | |
| 704 | ACPI_FUNCTION_TRACE("acpi_battery_set_alarm"); |
| 705 | |
| 706 | result = acpi_battery_select(battery); |
| 707 | if (result) { |
| 708 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 709 | "acpi_battery_select() failed\n")); |
| 710 | goto end; |
| 711 | } |
| 712 | |
| 713 | /* If necessary, enable the alarm */ |
| 714 | |
| 715 | if (alarm > 0) { |
| 716 | result = |
| 717 | acpi_sbs_smbus_read_word(smbus, ACPI_SB_SMBUS_ADDR, 0x03, |
| 718 | &battery_mode, |
| 719 | &acpi_battery_smbus_err_handler); |
| 720 | if (result) { |
| 721 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 722 | "acpi_sbs_smbus_read_word() failed\n")); |
| 723 | goto end; |
| 724 | } |
| 725 | |
| 726 | result = |
| 727 | acpi_sbs_smbus_write_word(smbus, ACPI_SB_SMBUS_ADDR, 0x01, |
| 728 | battery_mode & 0xbfff, |
| 729 | &acpi_battery_smbus_err_handler); |
| 730 | if (result) { |
| 731 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 732 | "acpi_sbs_smbus_write_word() failed\n")); |
| 733 | goto end; |
| 734 | } |
| 735 | } |
| 736 | |
| 737 | foo = alarm / (battery->info.capacity_mode ? 10 : 1); |
| 738 | result = acpi_sbs_smbus_write_word(smbus, ACPI_SB_SMBUS_ADDR, 0x01, |
| 739 | foo, |
| 740 | &acpi_battery_smbus_err_handler); |
| 741 | if (result) { |
| 742 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 743 | "acpi_sbs_smbus_write_word() failed\n")); |
| 744 | goto end; |
| 745 | } |
| 746 | |
| 747 | end: |
| 748 | |
| 749 | return_VALUE(result); |
| 750 | } |
| 751 | |
| 752 | static int acpi_battery_set_mode(struct acpi_battery *battery) |
| 753 | { |
| 754 | int result = 0; |
| 755 | s16 battery_mode; |
| 756 | |
| 757 | ACPI_FUNCTION_TRACE("acpi_battery_set_mode"); |
| 758 | |
| 759 | if (capacity_mode == DEF_CAPACITY_UNIT) { |
| 760 | goto end; |
| 761 | } |
| 762 | |
| 763 | result = acpi_sbs_smbus_read_word(battery->sbs->smbus, |
| 764 | ACPI_SB_SMBUS_ADDR, 0x03, |
| 765 | &battery_mode, NULL); |
| 766 | if (result) { |
| 767 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 768 | "acpi_sbs_smbus_read_word() failed\n")); |
| 769 | goto end; |
| 770 | } |
| 771 | |
| 772 | if (capacity_mode == MAH_CAPACITY_UNIT) { |
| 773 | battery_mode &= 0x7fff; |
| 774 | } else { |
| 775 | battery_mode |= 0x8000; |
| 776 | } |
| 777 | result = acpi_sbs_smbus_write_word(battery->sbs->smbus, |
| 778 | ACPI_SB_SMBUS_ADDR, 0x03, |
| 779 | battery_mode, NULL); |
| 780 | if (result) { |
| 781 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 782 | "acpi_sbs_smbus_write_word() failed\n")); |
| 783 | goto end; |
| 784 | } |
| 785 | |
| 786 | result = acpi_sbs_smbus_read_word(battery->sbs->smbus, |
| 787 | ACPI_SB_SMBUS_ADDR, 0x03, |
| 788 | &battery_mode, NULL); |
| 789 | if (result) { |
| 790 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 791 | "acpi_sbs_smbus_read_word() failed\n")); |
| 792 | goto end; |
| 793 | } |
| 794 | |
| 795 | end: |
| 796 | return_VALUE(result); |
| 797 | } |
| 798 | |
| 799 | static int acpi_battery_init(struct acpi_battery *battery) |
| 800 | { |
| 801 | int result = 0; |
| 802 | |
| 803 | ACPI_FUNCTION_TRACE("acpi_battery_init"); |
| 804 | |
| 805 | result = acpi_battery_select(battery); |
| 806 | if (result) { |
| 807 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 808 | "acpi_battery_init() failed\n")); |
| 809 | goto end; |
| 810 | } |
| 811 | |
| 812 | result = acpi_battery_set_mode(battery); |
| 813 | if (result) { |
| 814 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 815 | "acpi_battery_set_mode() failed\n")); |
| 816 | goto end; |
| 817 | } |
| 818 | |
| 819 | result = acpi_battery_get_info(battery); |
| 820 | if (result) { |
| 821 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 822 | "acpi_battery_get_info() failed\n")); |
| 823 | goto end; |
| 824 | } |
| 825 | |
| 826 | result = acpi_battery_get_state(battery); |
| 827 | if (result) { |
| 828 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 829 | "acpi_battery_get_state() failed\n")); |
| 830 | goto end; |
| 831 | } |
| 832 | |
| 833 | result = acpi_battery_get_alarm(battery); |
| 834 | if (result) { |
| 835 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 836 | "acpi_battery_get_alarm() failed\n")); |
| 837 | goto end; |
| 838 | } |
| 839 | |
| 840 | end: |
| 841 | return_VALUE(result); |
| 842 | } |
| 843 | |
| 844 | static int acpi_ac_get_present(struct acpi_sbs *sbs) |
| 845 | { |
| 846 | struct acpi_ec_smbus *smbus = sbs->smbus; |
| 847 | int result = 0; |
| 848 | s16 charger_status; |
| 849 | |
| 850 | ACPI_FUNCTION_TRACE("acpi_ac_get_present"); |
| 851 | |
| 852 | result = acpi_sbs_smbus_read_word(smbus, ACPI_SBC_SMBUS_ADDR, 0x13, |
| 853 | &charger_status, NULL); |
| 854 | |
| 855 | if (result) { |
| 856 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 857 | "acpi_sbs_smbus_read_word() failed\n")); |
| 858 | goto end; |
| 859 | } |
| 860 | |
| 861 | sbs->ac_present = (charger_status & 0x8000) >> 15; |
| 862 | |
| 863 | end: |
| 864 | |
| 865 | return_VALUE(result); |
| 866 | } |
| 867 | |
| 868 | /* -------------------------------------------------------------------------- |
| 869 | FS Interface (/proc/acpi) |
| 870 | -------------------------------------------------------------------------- */ |
| 871 | |
| 872 | /* Generic Routines */ |
| 873 | |
| 874 | static int |
| 875 | acpi_sbs_generic_add_fs(struct proc_dir_entry **dir, |
| 876 | struct proc_dir_entry *parent_dir, |
| 877 | char *dir_name, |
| 878 | struct file_operations *info_fops, |
| 879 | struct file_operations *state_fops, |
| 880 | struct file_operations *alarm_fops, void *data) |
| 881 | { |
| 882 | struct proc_dir_entry *entry = NULL; |
| 883 | |
| 884 | ACPI_FUNCTION_TRACE("acpi_sbs_generic_add_fs"); |
| 885 | |
| 886 | if (!*dir) { |
| 887 | *dir = proc_mkdir(dir_name, parent_dir); |
| 888 | if (!*dir) { |
| 889 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 890 | "proc_mkdir() failed\n")); |
| 891 | return_VALUE(-ENODEV); |
| 892 | } |
| 893 | (*dir)->owner = THIS_MODULE; |
| 894 | } |
| 895 | |
| 896 | /* 'info' [R] */ |
| 897 | if (info_fops) { |
| 898 | entry = create_proc_entry(ACPI_SBS_FILE_INFO, S_IRUGO, *dir); |
| 899 | if (!entry) { |
| 900 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 901 | "create_proc_entry() failed\n")); |
| 902 | } else { |
| 903 | entry->proc_fops = info_fops; |
| 904 | entry->data = data; |
| 905 | entry->owner = THIS_MODULE; |
| 906 | } |
| 907 | } |
| 908 | |
| 909 | /* 'state' [R] */ |
| 910 | if (state_fops) { |
| 911 | entry = create_proc_entry(ACPI_SBS_FILE_STATE, S_IRUGO, *dir); |
| 912 | if (!entry) { |
| 913 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 914 | "create_proc_entry() failed\n")); |
| 915 | } else { |
| 916 | entry->proc_fops = state_fops; |
| 917 | entry->data = data; |
| 918 | entry->owner = THIS_MODULE; |
| 919 | } |
| 920 | } |
| 921 | |
| 922 | /* 'alarm' [R/W] */ |
| 923 | if (alarm_fops) { |
| 924 | entry = create_proc_entry(ACPI_SBS_FILE_ALARM, S_IRUGO, *dir); |
| 925 | if (!entry) { |
| 926 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 927 | "create_proc_entry() failed\n")); |
| 928 | } else { |
| 929 | entry->proc_fops = alarm_fops; |
| 930 | entry->data = data; |
| 931 | entry->owner = THIS_MODULE; |
| 932 | } |
| 933 | } |
| 934 | |
| 935 | return_VALUE(0); |
| 936 | } |
| 937 | |
| 938 | static void |
| 939 | acpi_sbs_generic_remove_fs(struct proc_dir_entry **dir, |
| 940 | struct proc_dir_entry *parent_dir) |
| 941 | { |
| 942 | ACPI_FUNCTION_TRACE("acpi_sbs_generic_remove_fs"); |
| 943 | |
| 944 | if (*dir) { |
| 945 | remove_proc_entry(ACPI_SBS_FILE_INFO, *dir); |
| 946 | remove_proc_entry(ACPI_SBS_FILE_STATE, *dir); |
| 947 | remove_proc_entry(ACPI_SBS_FILE_ALARM, *dir); |
| 948 | remove_proc_entry((*dir)->name, parent_dir); |
| 949 | *dir = NULL; |
| 950 | } |
| 951 | |
| 952 | } |
| 953 | |
| 954 | /* Smart Battery Interface */ |
| 955 | |
| 956 | static struct proc_dir_entry *acpi_battery_dir = NULL; |
| 957 | |
| 958 | static int acpi_battery_read_info(struct seq_file *seq, void *offset) |
| 959 | { |
| 960 | struct acpi_battery *battery = (struct acpi_battery *)seq->private; |
| 961 | int cscale; |
| 962 | int result = 0; |
| 963 | |
| 964 | ACPI_FUNCTION_TRACE("acpi_battery_read_info"); |
| 965 | |
| 966 | if (battery->sbs->zombie) { |
| 967 | return_VALUE(-ENODEV); |
| 968 | } |
| 969 | |
| 970 | down(&sbs_sem); |
| 971 | |
| 972 | if (update_mode == REQUEST_UPDATE_MODE) { |
| 973 | result = acpi_sbs_update_run(battery->sbs, DATA_TYPE_INFO); |
| 974 | if (result) { |
| 975 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 976 | "acpi_sbs_update_run() failed\n")); |
| 977 | } |
| 978 | } |
| 979 | |
| 980 | if (acpi_battery_is_present(battery)) { |
| 981 | seq_printf(seq, "present: yes\n"); |
| 982 | } else { |
| 983 | seq_printf(seq, "present: no\n"); |
| 984 | goto end; |
| 985 | } |
| 986 | |
| 987 | if (battery->info.capacity_mode) { |
| 988 | cscale = battery->info.vscale * battery->info.ipscale; |
| 989 | } else { |
| 990 | cscale = battery->info.ipscale; |
| 991 | } |
| 992 | seq_printf(seq, "design capacity: %i%s", |
| 993 | battery->info.design_capacity * cscale, |
| 994 | battery->info.capacity_mode ? "0 mWh\n" : " mAh\n"); |
| 995 | |
| 996 | seq_printf(seq, "last full capacity: %i%s", |
| 997 | battery->info.full_charge_capacity * cscale, |
| 998 | battery->info.capacity_mode ? "0 mWh\n" : " mAh\n"); |
| 999 | |
| 1000 | seq_printf(seq, "battery technology: rechargeable\n"); |
| 1001 | |
| 1002 | seq_printf(seq, "design voltage: %i mV\n", |
| 1003 | battery->info.design_voltage * battery->info.vscale); |
| 1004 | |
| 1005 | seq_printf(seq, "design capacity warning: unknown\n"); |
| 1006 | seq_printf(seq, "design capacity low: unknown\n"); |
| 1007 | seq_printf(seq, "capacity granularity 1: unknown\n"); |
| 1008 | seq_printf(seq, "capacity granularity 2: unknown\n"); |
| 1009 | |
| 1010 | seq_printf(seq, "model number: %s\n", |
| 1011 | battery->info.device_name); |
| 1012 | |
| 1013 | seq_printf(seq, "serial number: %i\n", |
| 1014 | battery->info.serial_number); |
| 1015 | |
| 1016 | seq_printf(seq, "battery type: %s\n", |
| 1017 | battery->info.device_chemistry); |
| 1018 | |
| 1019 | seq_printf(seq, "OEM info: %s\n", |
| 1020 | battery->info.manufacturer_name); |
| 1021 | |
| 1022 | end: |
| 1023 | |
| 1024 | up(&sbs_sem); |
| 1025 | |
| 1026 | return_VALUE(result); |
| 1027 | } |
| 1028 | |
| 1029 | static int acpi_battery_info_open_fs(struct inode *inode, struct file *file) |
| 1030 | { |
| 1031 | return single_open(file, acpi_battery_read_info, PDE(inode)->data); |
| 1032 | } |
| 1033 | |
| 1034 | static int acpi_battery_read_state(struct seq_file *seq, void *offset) |
| 1035 | { |
| 1036 | struct acpi_battery *battery = (struct acpi_battery *)seq->private; |
| 1037 | int result = 0; |
| 1038 | int cscale; |
| 1039 | int foo; |
| 1040 | |
| 1041 | ACPI_FUNCTION_TRACE("acpi_battery_read_state"); |
| 1042 | |
| 1043 | if (battery->sbs->zombie) { |
| 1044 | return_VALUE(-ENODEV); |
| 1045 | } |
| 1046 | |
| 1047 | down(&sbs_sem); |
| 1048 | |
| 1049 | if (update_mode == REQUEST_UPDATE_MODE) { |
| 1050 | result = acpi_sbs_update_run(battery->sbs, DATA_TYPE_STATE); |
| 1051 | if (result) { |
| 1052 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1053 | "acpi_sbs_update_run() failed\n")); |
| 1054 | } |
| 1055 | } |
| 1056 | |
| 1057 | if (acpi_battery_is_present(battery)) { |
| 1058 | seq_printf(seq, "present: yes\n"); |
| 1059 | } else { |
| 1060 | seq_printf(seq, "present: no\n"); |
| 1061 | goto end; |
| 1062 | } |
| 1063 | |
| 1064 | if (battery->info.capacity_mode) { |
| 1065 | cscale = battery->info.vscale * battery->info.ipscale; |
| 1066 | } else { |
| 1067 | cscale = battery->info.ipscale; |
| 1068 | } |
| 1069 | |
| 1070 | if (battery->state.battery_status & 0x0010) { |
| 1071 | seq_printf(seq, "capacity state: critical\n"); |
| 1072 | } else { |
| 1073 | seq_printf(seq, "capacity state: ok\n"); |
| 1074 | } |
| 1075 | if (battery->state.amperage < 0) { |
| 1076 | seq_printf(seq, "charging state: discharging\n"); |
| 1077 | foo = battery->state.remaining_capacity * cscale * 60 / |
| 1078 | (battery->state.average_time_to_empty == 0 ? 1 : |
| 1079 | battery->state.average_time_to_empty); |
| 1080 | seq_printf(seq, "present rate: %i%s\n", |
| 1081 | foo, battery->info.capacity_mode ? "0 mW" : " mA"); |
| 1082 | } else if (battery->state.amperage > 0) { |
| 1083 | seq_printf(seq, "charging state: charging\n"); |
| 1084 | foo = (battery->info.full_charge_capacity - |
| 1085 | battery->state.remaining_capacity) * cscale * 60 / |
| 1086 | (battery->state.average_time_to_full == 0 ? 1 : |
| 1087 | battery->state.average_time_to_full); |
| 1088 | seq_printf(seq, "present rate: %i%s\n", |
| 1089 | foo, battery->info.capacity_mode ? "0 mW" : " mA"); |
| 1090 | } else { |
| 1091 | seq_printf(seq, "charging state: charged\n"); |
| 1092 | seq_printf(seq, "present rate: 0 %s\n", |
| 1093 | battery->info.capacity_mode ? "mW" : "mA"); |
| 1094 | } |
| 1095 | |
| 1096 | seq_printf(seq, "remaining capacity: %i%s", |
| 1097 | battery->state.remaining_capacity * cscale, |
| 1098 | battery->info.capacity_mode ? "0 mWh\n" : " mAh\n"); |
| 1099 | |
| 1100 | seq_printf(seq, "present voltage: %i mV\n", |
| 1101 | battery->state.voltage * battery->info.vscale); |
| 1102 | |
| 1103 | end: |
| 1104 | |
| 1105 | up(&sbs_sem); |
| 1106 | |
| 1107 | return_VALUE(result); |
| 1108 | } |
| 1109 | |
| 1110 | static int acpi_battery_state_open_fs(struct inode *inode, struct file *file) |
| 1111 | { |
| 1112 | return single_open(file, acpi_battery_read_state, PDE(inode)->data); |
| 1113 | } |
| 1114 | |
| 1115 | static int acpi_battery_read_alarm(struct seq_file *seq, void *offset) |
| 1116 | { |
| 1117 | struct acpi_battery *battery = (struct acpi_battery *)seq->private; |
| 1118 | int result = 0; |
| 1119 | int cscale; |
| 1120 | |
| 1121 | ACPI_FUNCTION_TRACE("acpi_battery_read_alarm"); |
| 1122 | |
| 1123 | if (battery->sbs->zombie) { |
| 1124 | return_VALUE(-ENODEV); |
| 1125 | } |
| 1126 | |
| 1127 | down(&sbs_sem); |
| 1128 | |
| 1129 | if (update_mode == REQUEST_UPDATE_MODE) { |
| 1130 | result = acpi_sbs_update_run(battery->sbs, DATA_TYPE_ALARM); |
| 1131 | if (result) { |
| 1132 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1133 | "acpi_sbs_update_run() failed\n")); |
| 1134 | } |
| 1135 | } |
| 1136 | |
| 1137 | if (!acpi_battery_is_present(battery)) { |
| 1138 | seq_printf(seq, "present: no\n"); |
| 1139 | goto end; |
| 1140 | } |
| 1141 | |
| 1142 | if (battery->info.capacity_mode) { |
| 1143 | cscale = battery->info.vscale * battery->info.ipscale; |
| 1144 | } else { |
| 1145 | cscale = battery->info.ipscale; |
| 1146 | } |
| 1147 | |
| 1148 | seq_printf(seq, "alarm: "); |
| 1149 | if (battery->alarm.remaining_capacity) { |
| 1150 | seq_printf(seq, "%i%s", |
| 1151 | battery->alarm.remaining_capacity * cscale, |
| 1152 | battery->info.capacity_mode ? "0 mWh\n" : " mAh\n"); |
| 1153 | } else { |
| 1154 | seq_printf(seq, "disabled\n"); |
| 1155 | } |
| 1156 | |
| 1157 | end: |
| 1158 | |
| 1159 | up(&sbs_sem); |
| 1160 | |
| 1161 | return_VALUE(result); |
| 1162 | } |
| 1163 | |
| 1164 | static ssize_t |
| 1165 | acpi_battery_write_alarm(struct file *file, const char __user * buffer, |
| 1166 | size_t count, loff_t * ppos) |
| 1167 | { |
| 1168 | struct seq_file *seq = (struct seq_file *)file->private_data; |
| 1169 | struct acpi_battery *battery = (struct acpi_battery *)seq->private; |
| 1170 | char alarm_string[12] = { '\0' }; |
| 1171 | int result, old_alarm, new_alarm; |
| 1172 | |
| 1173 | ACPI_FUNCTION_TRACE("acpi_battery_write_alarm"); |
| 1174 | |
| 1175 | if (battery->sbs->zombie) { |
| 1176 | return_VALUE(-ENODEV); |
| 1177 | } |
| 1178 | |
| 1179 | down(&sbs_sem); |
| 1180 | |
| 1181 | if (!acpi_battery_is_present(battery)) { |
| 1182 | result = -ENODEV; |
| 1183 | goto end; |
| 1184 | } |
| 1185 | |
| 1186 | if (count > sizeof(alarm_string) - 1) { |
| 1187 | result = -EINVAL; |
| 1188 | goto end; |
| 1189 | } |
| 1190 | |
| 1191 | if (copy_from_user(alarm_string, buffer, count)) { |
| 1192 | result = -EFAULT; |
| 1193 | goto end; |
| 1194 | } |
| 1195 | |
| 1196 | alarm_string[count] = 0; |
| 1197 | |
| 1198 | old_alarm = battery->alarm.remaining_capacity; |
| 1199 | new_alarm = simple_strtoul(alarm_string, NULL, 0); |
| 1200 | |
| 1201 | result = acpi_battery_set_alarm(battery, new_alarm); |
| 1202 | if (result) { |
| 1203 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1204 | "acpi_battery_set_alarm() failed\n")); |
| 1205 | (void)acpi_battery_set_alarm(battery, old_alarm); |
| 1206 | goto end; |
| 1207 | } |
| 1208 | result = acpi_battery_get_alarm(battery); |
| 1209 | if (result) { |
| 1210 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1211 | "acpi_battery_get_alarm() failed\n")); |
| 1212 | (void)acpi_battery_set_alarm(battery, old_alarm); |
| 1213 | goto end; |
| 1214 | } |
| 1215 | |
| 1216 | end: |
| 1217 | up(&sbs_sem); |
| 1218 | |
| 1219 | if (result) { |
| 1220 | return_VALUE(result); |
| 1221 | } else { |
| 1222 | return_VALUE(count); |
| 1223 | } |
| 1224 | } |
| 1225 | |
| 1226 | static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file) |
| 1227 | { |
| 1228 | return single_open(file, acpi_battery_read_alarm, PDE(inode)->data); |
| 1229 | } |
| 1230 | |
| 1231 | static struct file_operations acpi_battery_info_fops = { |
| 1232 | .open = acpi_battery_info_open_fs, |
| 1233 | .read = seq_read, |
| 1234 | .llseek = seq_lseek, |
| 1235 | .release = single_release, |
| 1236 | .owner = THIS_MODULE, |
| 1237 | }; |
| 1238 | |
| 1239 | static struct file_operations acpi_battery_state_fops = { |
| 1240 | .open = acpi_battery_state_open_fs, |
| 1241 | .read = seq_read, |
| 1242 | .llseek = seq_lseek, |
| 1243 | .release = single_release, |
| 1244 | .owner = THIS_MODULE, |
| 1245 | }; |
| 1246 | |
| 1247 | static struct file_operations acpi_battery_alarm_fops = { |
| 1248 | .open = acpi_battery_alarm_open_fs, |
| 1249 | .read = seq_read, |
| 1250 | .write = acpi_battery_write_alarm, |
| 1251 | .llseek = seq_lseek, |
| 1252 | .release = single_release, |
| 1253 | .owner = THIS_MODULE, |
| 1254 | }; |
| 1255 | |
| 1256 | /* Legacy AC Adapter Interface */ |
| 1257 | |
| 1258 | static struct proc_dir_entry *acpi_ac_dir = NULL; |
| 1259 | |
| 1260 | static int acpi_ac_read_state(struct seq_file *seq, void *offset) |
| 1261 | { |
| 1262 | struct acpi_sbs *sbs = (struct acpi_sbs *)seq->private; |
| 1263 | int result; |
| 1264 | |
| 1265 | ACPI_FUNCTION_TRACE("acpi_ac_read_state"); |
| 1266 | |
| 1267 | if (sbs->zombie) { |
| 1268 | return_VALUE(-ENODEV); |
| 1269 | } |
| 1270 | |
| 1271 | down(&sbs_sem); |
| 1272 | |
| 1273 | if (update_mode == REQUEST_UPDATE_MODE) { |
| 1274 | result = acpi_sbs_update_run(sbs, DATA_TYPE_AC_STATE); |
| 1275 | if (result) { |
| 1276 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1277 | "acpi_sbs_update_run() failed\n")); |
| 1278 | } |
| 1279 | } |
| 1280 | |
| 1281 | seq_printf(seq, "state: %s\n", |
| 1282 | sbs->ac_present ? "on-line" : "off-line"); |
| 1283 | |
| 1284 | up(&sbs_sem); |
| 1285 | |
| 1286 | return_VALUE(0); |
| 1287 | } |
| 1288 | |
| 1289 | static int acpi_ac_state_open_fs(struct inode *inode, struct file *file) |
| 1290 | { |
| 1291 | return single_open(file, acpi_ac_read_state, PDE(inode)->data); |
| 1292 | } |
| 1293 | |
| 1294 | static struct file_operations acpi_ac_state_fops = { |
| 1295 | .open = acpi_ac_state_open_fs, |
| 1296 | .read = seq_read, |
| 1297 | .llseek = seq_lseek, |
| 1298 | .release = single_release, |
| 1299 | .owner = THIS_MODULE, |
| 1300 | }; |
| 1301 | |
| 1302 | /* -------------------------------------------------------------------------- |
| 1303 | Driver Interface |
| 1304 | -------------------------------------------------------------------------- */ |
| 1305 | |
| 1306 | /* Smart Battery */ |
| 1307 | |
| 1308 | static int acpi_battery_add(struct acpi_sbs *sbs, int id) |
| 1309 | { |
| 1310 | int is_present; |
| 1311 | int result; |
| 1312 | char dir_name[32]; |
| 1313 | struct acpi_battery *battery; |
| 1314 | |
| 1315 | ACPI_FUNCTION_TRACE("acpi_battery_add"); |
| 1316 | |
| 1317 | battery = &sbs->battery[id]; |
| 1318 | |
| 1319 | battery->alive = 0; |
| 1320 | |
| 1321 | battery->init_state = 0; |
| 1322 | battery->id = id; |
| 1323 | battery->sbs = sbs; |
| 1324 | |
| 1325 | result = acpi_battery_select(battery); |
| 1326 | if (result) { |
| 1327 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1328 | "acpi_battery_select() failed\n")); |
| 1329 | goto end; |
| 1330 | } |
| 1331 | |
| 1332 | result = acpi_battery_get_present(battery); |
| 1333 | if (result) { |
| 1334 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1335 | "acpi_battery_get_present() failed\n")); |
| 1336 | goto end; |
| 1337 | } |
| 1338 | |
| 1339 | is_present = acpi_battery_is_present(battery); |
| 1340 | |
| 1341 | if (is_present) { |
| 1342 | result = acpi_battery_init(battery); |
| 1343 | if (result) { |
| 1344 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1345 | "acpi_battery_init() failed\n")); |
| 1346 | goto end; |
| 1347 | } |
| 1348 | battery->init_state = 1; |
| 1349 | } |
| 1350 | |
| 1351 | (void)sprintf(dir_name, ACPI_BATTERY_DIR_NAME, id); |
| 1352 | |
| 1353 | result = acpi_sbs_generic_add_fs(&battery->battery_entry, |
| 1354 | acpi_battery_dir, |
| 1355 | dir_name, |
| 1356 | &acpi_battery_info_fops, |
| 1357 | &acpi_battery_state_fops, |
| 1358 | &acpi_battery_alarm_fops, battery); |
| 1359 | if (result) { |
| 1360 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1361 | "acpi_sbs_generic_add_fs() failed\n")); |
| 1362 | goto end; |
| 1363 | } |
| 1364 | battery->alive = 1; |
| 1365 | |
| 1366 | end: |
| 1367 | return_VALUE(result); |
| 1368 | } |
| 1369 | |
| 1370 | static void acpi_battery_remove(struct acpi_sbs *sbs, int id) |
| 1371 | { |
| 1372 | ACPI_FUNCTION_TRACE("acpi_battery_remove"); |
| 1373 | |
| 1374 | if (sbs->battery[id].battery_entry) { |
| 1375 | acpi_sbs_generic_remove_fs(&(sbs->battery[id].battery_entry), |
| 1376 | acpi_battery_dir); |
| 1377 | } |
| 1378 | } |
| 1379 | |
| 1380 | static int acpi_ac_add(struct acpi_sbs *sbs) |
| 1381 | { |
| 1382 | int result; |
| 1383 | |
| 1384 | ACPI_FUNCTION_TRACE("acpi_ac_add"); |
| 1385 | |
| 1386 | result = acpi_ac_get_present(sbs); |
| 1387 | if (result) { |
| 1388 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1389 | "acpi_ac_get_present() failed\n")); |
| 1390 | goto end; |
| 1391 | } |
| 1392 | |
| 1393 | result = acpi_sbs_generic_add_fs(&sbs->ac_entry, |
| 1394 | acpi_ac_dir, |
| 1395 | ACPI_AC_DIR_NAME, |
| 1396 | NULL, &acpi_ac_state_fops, NULL, sbs); |
| 1397 | if (result) { |
| 1398 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1399 | "acpi_sbs_generic_add_fs() failed\n")); |
| 1400 | goto end; |
| 1401 | } |
| 1402 | |
| 1403 | end: |
| 1404 | |
| 1405 | return_VALUE(result); |
| 1406 | } |
| 1407 | |
| 1408 | static void acpi_ac_remove(struct acpi_sbs *sbs) |
| 1409 | { |
| 1410 | ACPI_FUNCTION_TRACE("acpi_ac_remove"); |
| 1411 | |
| 1412 | if (sbs->ac_entry) { |
| 1413 | acpi_sbs_generic_remove_fs(&sbs->ac_entry, acpi_ac_dir); |
| 1414 | } |
| 1415 | } |
| 1416 | |
| 1417 | static void acpi_sbs_update_queue_run(unsigned long data) |
| 1418 | { |
| 1419 | ACPI_FUNCTION_TRACE("acpi_sbs_update_queue_run"); |
| 1420 | acpi_os_execute(OSL_GPE_HANDLER, acpi_sbs_update_queue, (void *)data); |
| 1421 | } |
| 1422 | |
| 1423 | static int acpi_sbs_update_run(struct acpi_sbs *sbs, int data_type) |
| 1424 | { |
| 1425 | struct acpi_battery *battery; |
| 1426 | int result = 0; |
| 1427 | int old_ac_present; |
| 1428 | int old_battery_present; |
| 1429 | int new_ac_present; |
| 1430 | int new_battery_present; |
| 1431 | int id; |
| 1432 | char dir_name[32]; |
| 1433 | int do_battery_init, do_ac_init; |
| 1434 | s16 old_remaining_capacity; |
| 1435 | |
| 1436 | ACPI_FUNCTION_TRACE("acpi_sbs_update_run"); |
| 1437 | |
| 1438 | if (sbs->zombie) { |
| 1439 | goto end; |
| 1440 | } |
| 1441 | |
| 1442 | old_ac_present = acpi_ac_is_present(sbs); |
| 1443 | |
| 1444 | result = acpi_ac_get_present(sbs); |
| 1445 | if (result) { |
| 1446 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1447 | "acpi_ac_get_present() failed\n")); |
| 1448 | } |
| 1449 | |
| 1450 | new_ac_present = acpi_ac_is_present(sbs); |
| 1451 | |
| 1452 | do_ac_init = (old_ac_present != new_ac_present); |
| 1453 | |
| 1454 | if (data_type == DATA_TYPE_AC_STATE) { |
| 1455 | goto end; |
| 1456 | } |
| 1457 | |
| 1458 | for (id = 0; id < MAX_SBS_BAT; id++) { |
| 1459 | battery = &sbs->battery[id]; |
| 1460 | if (battery->alive == 0) { |
| 1461 | continue; |
| 1462 | } |
| 1463 | |
| 1464 | old_remaining_capacity = battery->state.remaining_capacity; |
| 1465 | |
| 1466 | old_battery_present = acpi_battery_is_present(battery); |
| 1467 | |
| 1468 | result = acpi_battery_select(battery); |
| 1469 | if (result) { |
| 1470 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1471 | "acpi_battery_select() failed\n")); |
| 1472 | } |
| 1473 | if (sbs->zombie) { |
| 1474 | goto end; |
| 1475 | } |
| 1476 | |
| 1477 | result = acpi_battery_get_present(battery); |
| 1478 | if (result) { |
| 1479 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1480 | "acpi_battery_get_present() failed\n")); |
| 1481 | } |
| 1482 | if (sbs->zombie) { |
| 1483 | goto end; |
| 1484 | } |
| 1485 | |
| 1486 | new_battery_present = acpi_battery_is_present(battery); |
| 1487 | |
| 1488 | do_battery_init = ((old_battery_present != new_battery_present) |
| 1489 | && new_battery_present); |
| 1490 | |
| 1491 | if (sbs->zombie) { |
| 1492 | goto end; |
| 1493 | } |
| 1494 | if (do_ac_init || do_battery_init || |
| 1495 | update_info_mode || sbs->update_info_mode) { |
| 1496 | if (sbs->update_info_mode) { |
| 1497 | sbs->update_info_mode = 0; |
| 1498 | } else { |
| 1499 | sbs->update_info_mode = 1; |
| 1500 | } |
| 1501 | result = acpi_battery_init(battery); |
| 1502 | if (result) { |
| 1503 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1504 | "acpi_battery_init() " |
| 1505 | "failed\n")); |
| 1506 | } |
| 1507 | } |
| 1508 | if (data_type == DATA_TYPE_INFO) { |
| 1509 | continue; |
| 1510 | } |
| 1511 | |
| 1512 | if (sbs->zombie) { |
| 1513 | goto end; |
| 1514 | } |
| 1515 | if (new_battery_present) { |
| 1516 | result = acpi_battery_get_alarm(battery); |
| 1517 | if (result) { |
| 1518 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1519 | "acpi_battery_get_alarm() " |
| 1520 | "failed\n")); |
| 1521 | } |
| 1522 | if (data_type == DATA_TYPE_ALARM) { |
| 1523 | continue; |
| 1524 | } |
| 1525 | |
| 1526 | result = acpi_battery_get_state(battery); |
| 1527 | if (result) { |
| 1528 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1529 | "acpi_battery_get_state() " |
| 1530 | "failed\n")); |
| 1531 | } |
| 1532 | } |
| 1533 | if (sbs->zombie) { |
| 1534 | goto end; |
| 1535 | } |
| 1536 | if (data_type != DATA_TYPE_COMMON) { |
| 1537 | continue; |
| 1538 | } |
| 1539 | |
| 1540 | if (old_battery_present != new_battery_present) { |
| 1541 | (void)sprintf(dir_name, ACPI_BATTERY_DIR_NAME, id); |
| 1542 | result = acpi_sbs_generate_event(sbs->device, |
| 1543 | ACPI_SBS_BATTERY_NOTIFY_STATUS, |
| 1544 | new_battery_present, |
| 1545 | dir_name, |
| 1546 | ACPI_BATTERY_CLASS); |
| 1547 | if (result) { |
| 1548 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1549 | "acpi_sbs_generate_event() " |
| 1550 | "failed\n")); |
| 1551 | } |
| 1552 | } |
| 1553 | if (old_remaining_capacity != battery->state.remaining_capacity) { |
| 1554 | (void)sprintf(dir_name, ACPI_BATTERY_DIR_NAME, id); |
| 1555 | result = acpi_sbs_generate_event(sbs->device, |
| 1556 | ACPI_SBS_BATTERY_NOTIFY_STATUS, |
| 1557 | new_battery_present, |
| 1558 | dir_name, |
| 1559 | ACPI_BATTERY_CLASS); |
| 1560 | if (result) { |
| 1561 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1562 | "acpi_sbs_generate_event() failed\n")); |
| 1563 | } |
| 1564 | } |
| 1565 | |
| 1566 | } |
| 1567 | if (sbs->zombie) { |
| 1568 | goto end; |
| 1569 | } |
| 1570 | if (data_type != DATA_TYPE_COMMON) { |
| 1571 | goto end; |
| 1572 | } |
| 1573 | |
| 1574 | if (old_ac_present != new_ac_present) { |
| 1575 | result = acpi_sbs_generate_event(sbs->device, |
| 1576 | ACPI_SBS_AC_NOTIFY_STATUS, |
| 1577 | new_ac_present, |
| 1578 | ACPI_AC_DIR_NAME, |
| 1579 | ACPI_AC_CLASS); |
| 1580 | if (result) { |
| 1581 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1582 | "acpi_sbs_generate_event() failed\n")); |
| 1583 | } |
| 1584 | } |
| 1585 | |
| 1586 | end: |
| 1587 | return_VALUE(result); |
| 1588 | } |
| 1589 | |
| 1590 | static void acpi_sbs_update_queue(void *data) |
| 1591 | { |
| 1592 | struct acpi_sbs *sbs = data; |
| 1593 | unsigned long delay = -1; |
| 1594 | int result; |
| 1595 | |
| 1596 | ACPI_FUNCTION_TRACE("acpi_sbs_update_queue"); |
| 1597 | |
| 1598 | if (sbs->zombie) { |
| 1599 | goto end; |
| 1600 | } |
| 1601 | |
| 1602 | result = acpi_sbs_update_run(sbs, DATA_TYPE_COMMON); |
| 1603 | if (result) { |
| 1604 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1605 | "acpi_sbs_update_run() failed\n")); |
| 1606 | } |
| 1607 | |
| 1608 | if (sbs->zombie) { |
| 1609 | goto end; |
| 1610 | } |
| 1611 | |
| 1612 | if (update_mode == REQUEST_UPDATE_MODE) { |
| 1613 | goto end; |
| 1614 | } |
| 1615 | |
| 1616 | delay = jiffies + HZ * update_time; |
| 1617 | sbs->update_timer.data = (unsigned long)data; |
| 1618 | sbs->update_timer.function = acpi_sbs_update_queue_run; |
| 1619 | sbs->update_timer.expires = delay; |
| 1620 | add_timer(&sbs->update_timer); |
| 1621 | end: |
| 1622 | ; |
| 1623 | } |
| 1624 | |
| 1625 | static int acpi_sbs_add(struct acpi_device *device) |
| 1626 | { |
| 1627 | struct acpi_sbs *sbs = NULL; |
| 1628 | struct acpi_ec_hc *ec_hc = NULL; |
| 1629 | int result, remove_result = 0; |
| 1630 | unsigned long sbs_obj; |
| 1631 | int id, cnt; |
| 1632 | acpi_status status = AE_OK; |
| 1633 | |
| 1634 | ACPI_FUNCTION_TRACE("acpi_sbs_add"); |
| 1635 | |
| 1636 | sbs = kmalloc(sizeof(struct acpi_sbs), GFP_KERNEL); |
| 1637 | if (!sbs) { |
| 1638 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "kmalloc() failed\n")); |
| 1639 | return_VALUE(-ENOMEM); |
| 1640 | } |
| 1641 | memset(sbs, 0, sizeof(struct acpi_sbs)); |
| 1642 | |
| 1643 | cnt = 0; |
| 1644 | while (cnt < 10) { |
| 1645 | cnt++; |
| 1646 | ec_hc = acpi_get_ec_hc(device); |
| 1647 | if (ec_hc) { |
| 1648 | break; |
| 1649 | } |
| 1650 | msleep(1000); |
| 1651 | } |
| 1652 | |
| 1653 | if (!ec_hc) { |
| 1654 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1655 | "acpi_get_ec_hc() failed: " |
| 1656 | "NO driver found for EC HC SMBus\n")); |
| 1657 | result = -ENODEV; |
| 1658 | goto end; |
| 1659 | } |
| 1660 | |
| 1661 | sbs->device = device; |
| 1662 | sbs->smbus = ec_hc->smbus; |
| 1663 | |
| 1664 | strcpy(acpi_device_name(device), ACPI_SBS_DEVICE_NAME); |
| 1665 | strcpy(acpi_device_class(device), ACPI_SBS_CLASS); |
| 1666 | acpi_driver_data(device) = sbs; |
| 1667 | |
| 1668 | sbs->update_time = 0; |
| 1669 | sbs->update_time2 = 0; |
| 1670 | |
| 1671 | result = acpi_ac_add(sbs); |
| 1672 | if (result) { |
| 1673 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "acpi_ac_add() failed\n")); |
| 1674 | goto end; |
| 1675 | } |
| 1676 | result = acpi_evaluate_integer(device->handle, "_SBS", NULL, &sbs_obj); |
| 1677 | if (ACPI_FAILURE(result)) { |
| 1678 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1679 | "acpi_evaluate_integer() failed\n")); |
| 1680 | result = -EIO; |
| 1681 | goto end; |
| 1682 | } |
| 1683 | |
| 1684 | if (sbs_obj > 0) { |
| 1685 | result = acpi_sbsm_get_info(sbs); |
| 1686 | if (result) { |
| 1687 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1688 | "acpi_sbsm_get_info() failed\n")); |
| 1689 | goto end; |
| 1690 | } |
| 1691 | sbs->sbsm_present = 1; |
| 1692 | } |
| 1693 | if (sbs->sbsm_present == 0) { |
| 1694 | result = acpi_battery_add(sbs, 0); |
| 1695 | if (result) { |
| 1696 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1697 | "acpi_battery_add() failed\n")); |
| 1698 | goto end; |
| 1699 | } |
| 1700 | } else { |
| 1701 | for (id = 0; id < MAX_SBS_BAT; id++) { |
| 1702 | if ((sbs->sbsm_batteries_supported & (1 << id))) { |
| 1703 | result = acpi_battery_add(sbs, id); |
| 1704 | if (result) { |
| 1705 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1706 | "acpi_battery_add() " |
| 1707 | "failed\n")); |
| 1708 | goto end; |
| 1709 | } |
| 1710 | } |
| 1711 | } |
| 1712 | } |
| 1713 | |
| 1714 | sbs->handle = device->handle; |
| 1715 | |
| 1716 | init_timer(&sbs->update_timer); |
| 1717 | if (update_mode == QUEUE_UPDATE_MODE) { |
| 1718 | status = acpi_os_execute(OSL_GPE_HANDLER, |
| 1719 | acpi_sbs_update_queue, (void *)sbs); |
| 1720 | if (status != AE_OK) { |
| 1721 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1722 | "acpi_os_execute() failed\n")); |
| 1723 | } |
| 1724 | } |
| 1725 | sbs->update_time = update_time; |
| 1726 | sbs->update_time2 = update_time2; |
| 1727 | |
| 1728 | printk(KERN_INFO PREFIX "%s [%s]\n", |
| 1729 | acpi_device_name(device), acpi_device_bid(device)); |
| 1730 | |
| 1731 | end: |
| 1732 | if (result) { |
| 1733 | remove_result = acpi_sbs_remove(device, 0); |
| 1734 | if (remove_result) { |
| 1735 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1736 | "acpi_sbs_remove() failed\n")); |
| 1737 | } |
| 1738 | } |
| 1739 | |
| 1740 | return_VALUE(result); |
| 1741 | } |
| 1742 | |
| 1743 | int acpi_sbs_remove(struct acpi_device *device, int type) |
| 1744 | { |
| 1745 | struct acpi_sbs *sbs = (struct acpi_sbs *)acpi_driver_data(device); |
| 1746 | int id; |
| 1747 | |
| 1748 | ACPI_FUNCTION_TRACE("acpi_sbs_remove"); |
| 1749 | |
| 1750 | if (!device || !sbs) { |
| 1751 | return_VALUE(-EINVAL); |
| 1752 | } |
| 1753 | |
| 1754 | sbs->zombie = 1; |
| 1755 | sbs->update_time = 0; |
| 1756 | sbs->update_time2 = 0; |
| 1757 | del_timer_sync(&sbs->update_timer); |
| 1758 | acpi_os_wait_events_complete(NULL); |
| 1759 | del_timer_sync(&sbs->update_timer); |
| 1760 | |
| 1761 | for (id = 0; id < MAX_SBS_BAT; id++) { |
| 1762 | acpi_battery_remove(sbs, id); |
| 1763 | } |
| 1764 | |
| 1765 | acpi_ac_remove(sbs); |
| 1766 | |
| 1767 | kfree(sbs); |
| 1768 | |
| 1769 | return_VALUE(0); |
| 1770 | } |
| 1771 | |
| 1772 | static int __init acpi_sbs_init(void) |
| 1773 | { |
| 1774 | int result = 0; |
| 1775 | |
| 1776 | ACPI_FUNCTION_TRACE("acpi_sbs_init"); |
| 1777 | |
| 1778 | init_MUTEX(&sbs_sem); |
| 1779 | |
| 1780 | if (capacity_mode != DEF_CAPACITY_UNIT |
| 1781 | && capacity_mode != MAH_CAPACITY_UNIT |
| 1782 | && capacity_mode != MWH_CAPACITY_UNIT) { |
| 1783 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "acpi_sbs_init: " |
| 1784 | "invalid capacity_mode = %d\n", |
| 1785 | capacity_mode)); |
| 1786 | return_VALUE(-EINVAL); |
| 1787 | } |
| 1788 | |
| 1789 | acpi_ac_dir = acpi_lock_ac_dir(); |
| 1790 | if (!acpi_ac_dir) { |
| 1791 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1792 | "acpi_lock_ac_dir() failed\n")); |
| 1793 | return_VALUE(-ENODEV); |
| 1794 | } |
| 1795 | |
| 1796 | acpi_battery_dir = acpi_lock_battery_dir(); |
| 1797 | if (!acpi_battery_dir) { |
| 1798 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1799 | "acpi_lock_battery_dir() failed\n")); |
| 1800 | return_VALUE(-ENODEV); |
| 1801 | } |
| 1802 | |
| 1803 | result = acpi_bus_register_driver(&acpi_sbs_driver); |
| 1804 | if (result < 0) { |
| 1805 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
| 1806 | "acpi_bus_register_driver() failed\n")); |
| 1807 | return_VALUE(-ENODEV); |
| 1808 | } |
| 1809 | |
| 1810 | return_VALUE(0); |
| 1811 | } |
| 1812 | |
| 1813 | static void __exit acpi_sbs_exit(void) |
| 1814 | { |
| 1815 | ACPI_FUNCTION_TRACE("acpi_sbs_exit"); |
| 1816 | |
| 1817 | acpi_bus_unregister_driver(&acpi_sbs_driver); |
| 1818 | |
| 1819 | acpi_unlock_ac_dir(acpi_ac_dir); |
| 1820 | acpi_ac_dir = NULL; |
| 1821 | acpi_unlock_battery_dir(acpi_battery_dir); |
| 1822 | acpi_battery_dir = NULL; |
| 1823 | |
| 1824 | return_VOID; |
| 1825 | } |
| 1826 | |
| 1827 | module_init(acpi_sbs_init); |
| 1828 | module_exit(acpi_sbs_exit); |