David Ng | da1fdc3 | 2018-03-22 23:44:56 -0700 | [diff] [blame] | 1 | /* |
| 2 | *Copyright (c) 2015-2016, The Linux Foundation. All rights reserved. |
| 3 | * |
| 4 | *Redistribution and use in source and binary forms, with or without |
| 5 | *modification, are permitted provided that the following conditions are |
| 6 | *met: |
| 7 | * * Redistributions of source code must retain the above copyright |
| 8 | * notice, this list of conditions and the following disclaimer. |
| 9 | * * Redistributions in binary form must reproduce the above |
| 10 | * copyright notice, this list of conditions and the following |
| 11 | * disclaimer in the documentation and/or other materials provided |
| 12 | * with the distribution. |
| 13 | * * Neither the name of The Linux Foundation nor the names of its |
| 14 | * contributors may be used to endorse or promote products derived |
| 15 | * from this software without specific prior written permission. |
| 16 | * |
| 17 | *THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 18 | *WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 19 | *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| 20 | *ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| 21 | *BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 22 | *CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 23 | *SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 24 | *BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 25 | *WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 26 | *OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| 27 | *IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 28 | */ |
| 29 | |
| 30 | #include <dirent.h> |
| 31 | #include <errno.h> |
| 32 | #include <string.h> |
| 33 | #include <fcntl.h> |
| 34 | #include <unistd.h> |
| 35 | #include <cutils/klog.h> |
| 36 | #include <batteryservice/BatteryService.h> |
| 37 | #include <cutils/android_reboot.h> |
| 38 | #include <cutils/properties.h> |
Benergy Meenan Ravuri | 3045c8d | 2019-11-13 16:38:03 +0530 | [diff] [blame] | 39 | #include <healthd/healthd.h> |
David Ng | da1fdc3 | 2018-03-22 23:44:56 -0700 | [diff] [blame] | 40 | #include "minui/minui.h" |
| 41 | #include "healthd_msm.h" |
| 42 | #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) |
| 43 | |
| 44 | #define HVDCP_CHARGER "USB_HVDCP" |
| 45 | #define HVDCP_BLINK_TYPE 2 |
| 46 | |
| 47 | #define RED_LED_PATH "/sys/class/leds/red/brightness" |
| 48 | #define GREEN_LED_PATH "/sys/class/leds/green/brightness" |
| 49 | #define BLUE_LED_PATH "/sys/class/leds/blue/brightness" |
| 50 | #define RED_LED_BLINK_PATH "/sys/class/leds/red/blink" |
| 51 | #define GREEN_LED_BLINK_PATH "/sys/class/leds/green/blink" |
| 52 | #define BACKLIGHT_PATH "/sys/class/backlight/panel0-backlight/brightness" |
| 53 | |
| 54 | #define CHARGING_ENABLED_PATH "/sys/class/power_supply/battery/charging_enabled" |
| 55 | #define CHARGER_TYPE_PATH "/sys/class/power_supply/usb/type" |
| 56 | #define BMS_READY_PATH "/sys/class/power_supply/bms/soc_reporting_ready" |
| 57 | #define BMS_BATT_INFO_PATH "/sys/class/power_supply/bms/battery_info" |
| 58 | #define BMS_BATT_INFO_ID_PATH "/sys/class/power_supply/bms/battery_info_id" |
| 59 | #define BMS_BATT_RES_ID_PATH "/sys/class/power_supply/bms/resistance_id" |
| 60 | #define PERSIST_BATT_INFO_PATH "/persist/bms/batt_info.txt" |
| 61 | |
| 62 | #define CHGR_TAG "charger" |
| 63 | #define HEALTHD_TAG "healthd_msm" |
| 64 | #define LOGE(tag, x...) do { KLOG_ERROR(tag, x); } while (0) |
| 65 | #define LOGW(tag, x...) do { KLOG_WARNING(tag, x); } while (0) |
| 66 | #define LOGV(tag, x...) do { KLOG_DEBUG(tag, x); } while (0) |
| 67 | |
| 68 | enum { |
| 69 | RED_LED = 0x01 << 0, |
| 70 | GREEN_LED = 0x01 << 1, |
| 71 | BLUE_LED = 0x01 << 2, |
| 72 | }; |
| 73 | |
| 74 | enum batt_info_params { |
| 75 | BATT_INFO_NOTIFY = 0, |
| 76 | BATT_INFO_SOC, |
| 77 | BATT_INFO_RES_ID, |
| 78 | BATT_INFO_VOLTAGE, |
| 79 | BATT_INFO_TEMP, |
| 80 | BATT_INFO_FCC, |
| 81 | BATT_INFO_MAX, |
| 82 | }; |
| 83 | |
| 84 | struct led_ctl { |
| 85 | int color; |
| 86 | const char *path; |
| 87 | }; |
| 88 | |
| 89 | struct led_ctl leds[3] = |
| 90 | {{RED_LED, RED_LED_PATH}, |
| 91 | {GREEN_LED, GREEN_LED_PATH}, |
| 92 | {BLUE_LED, BLUE_LED_PATH}}; |
| 93 | |
| 94 | #define HVDCP_COLOR_MAP (RED_LED | GREEN_LED) |
| 95 | |
| 96 | struct soc_led_color_mapping { |
| 97 | int soc; |
| 98 | int color; |
| 99 | }; |
| 100 | |
| 101 | struct soc_led_color_mapping soc_leds[3] = { |
| 102 | {15, RED_LED}, |
| 103 | {90, RED_LED | GREEN_LED}, |
| 104 | {100, GREEN_LED}, |
| 105 | }; |
| 106 | |
| 107 | static int batt_info_cached[BATT_INFO_MAX]; |
| 108 | static bool healthd_msm_err_log_once; |
| 109 | static int8_t healthd_msm_log_en; |
| 110 | static int8_t healthd_msm_store_params; |
| 111 | |
| 112 | static int write_file_int(char const* path, int value) |
| 113 | { |
| 114 | int fd; |
| 115 | char buffer[20]; |
| 116 | int rc = -1, bytes; |
| 117 | |
| 118 | fd = open(path, O_WRONLY); |
| 119 | if (fd >= 0) { |
| 120 | bytes = snprintf(buffer, sizeof(buffer), "%d\n", value); |
| 121 | rc = write(fd, buffer, bytes); |
| 122 | close(fd); |
| 123 | } |
| 124 | |
| 125 | return rc > 0 ? 0 : -1; |
| 126 | } |
| 127 | |
| 128 | static int set_tricolor_led(int on, int color) |
| 129 | { |
| 130 | int rc, i; |
| 131 | char buffer[10]; |
| 132 | |
| 133 | for (i = 0; i < (int)ARRAY_SIZE(leds); i++) { |
| 134 | if ((color & leds[i].color) && (access(leds[i].path, R_OK | W_OK) == 0)) { |
| 135 | rc = write_file_int(leds[i].path, on ? 255 : 0); |
| 136 | if (rc < 0) |
| 137 | return rc; |
| 138 | } |
| 139 | } |
| 140 | |
| 141 | return 0; |
| 142 | } |
| 143 | |
| 144 | static bool is_hvdcp_inserted() |
| 145 | { |
| 146 | bool hvdcp = false; |
| 147 | char buff[12] = "\0"; |
| 148 | int fd, cnt; |
| 149 | |
| 150 | fd = open(CHARGER_TYPE_PATH, O_RDONLY); |
| 151 | if (fd >= 0) { |
| 152 | cnt = read(fd, buff, (sizeof(buff) - 1)); |
| 153 | if (cnt > 0 && !strncmp(buff, HVDCP_CHARGER, 9)) |
| 154 | hvdcp = true; |
| 155 | close(fd); |
| 156 | } |
| 157 | |
| 158 | return hvdcp; |
| 159 | } |
| 160 | |
| 161 | static int get_blink_led_for_hvdcp(void) |
| 162 | { |
| 163 | int ret, rc = 0, bytes; |
| 164 | int red_blink_fd = -1, green_blink_fd = -1, type_fd = -1; |
| 165 | char buf[20]; |
| 166 | |
| 167 | type_fd = open(CHARGER_TYPE_PATH, O_RDONLY); |
| 168 | |
| 169 | if (type_fd < 0) { |
| 170 | LOGE(CHGR_TAG, "Could not open USB type node\n"); |
| 171 | return rc; |
| 172 | } else { |
| 173 | close(type_fd); |
| 174 | ret = write_file_int(GREEN_LED_BLINK_PATH, 0); |
| 175 | if (ret < 0) { |
| 176 | LOGE(CHGR_TAG, "Fail to write: %s\n", GREEN_LED_BLINK_PATH); |
| 177 | } else { |
| 178 | rc |= GREEN_LED; |
| 179 | } |
| 180 | |
| 181 | ret = write_file_int(RED_LED_BLINK_PATH, 0); |
| 182 | if (ret < 0) { |
| 183 | LOGE(CHGR_TAG, "Fail to write: %s\n", RED_LED_BLINK_PATH); |
| 184 | } else { |
| 185 | rc |= RED_LED; |
| 186 | } |
| 187 | } |
| 188 | |
| 189 | return rc; |
| 190 | } |
| 191 | |
| 192 | #if QTI_BSP |
| 193 | #define STR_LEN 8 |
| 194 | void healthd_board_mode_charger_draw_battery( |
| 195 | struct android::BatteryProperties *batt_prop) |
| 196 | { |
| 197 | char cap_str[STR_LEN]; |
| 198 | int x, y; |
| 199 | int str_len_px; |
| 200 | static int char_height = -1, char_width = -1; |
| 201 | |
| 202 | if (char_height == -1 && char_width == -1) |
| 203 | gr_font_size(&char_width, &char_height); |
| 204 | snprintf(cap_str, (STR_LEN - 1), "%d%%", batt_prop->batteryLevel); |
| 205 | str_len_px = gr_measure(cap_str); |
| 206 | x = (gr_fb_width() - str_len_px) / 2; |
| 207 | y = (gr_fb_height() + char_height) / 2; |
| 208 | gr_color(0xa4, 0xc6, 0x39, 255); |
| 209 | gr_text(x, y, cap_str, 0); |
| 210 | } |
| 211 | #endif |
| 212 | |
| 213 | void healthd_board_mode_charger_battery_update( |
| 214 | struct android::BatteryProperties *batt_prop) |
| 215 | { |
| 216 | static int blink_for_hvdcp = -1; |
| 217 | static int old_color = 0; |
| 218 | int i, color, soc, rc; |
| 219 | bool blink = false; |
| 220 | |
| 221 | if (blink_for_hvdcp == -1) |
| 222 | blink_for_hvdcp = get_blink_led_for_hvdcp(); |
| 223 | |
| 224 | if ((blink_for_hvdcp > 0) && is_hvdcp_inserted()) |
| 225 | blink = true; |
| 226 | |
| 227 | soc = batt_prop->batteryLevel; |
| 228 | |
| 229 | for (i = 0; i < ((int)ARRAY_SIZE(soc_leds) - 1); i++) { |
| 230 | if (soc < soc_leds[i].soc) |
| 231 | break; |
| 232 | } |
| 233 | color = soc_leds[i].color; |
| 234 | |
| 235 | if (old_color != color) { |
| 236 | if ((color == HVDCP_COLOR_MAP) && blink) { |
| 237 | if (blink_for_hvdcp & RED_LED) { |
| 238 | rc = write_file_int(RED_LED_BLINK_PATH, HVDCP_BLINK_TYPE); |
| 239 | if (rc < 0) { |
| 240 | LOGE(CHGR_TAG, "Fail to write: %s\n", RED_LED_BLINK_PATH); |
| 241 | return; |
| 242 | } |
| 243 | } |
| 244 | if (blink_for_hvdcp & GREEN_LED) { |
| 245 | rc = write_file_int(GREEN_LED_BLINK_PATH, HVDCP_BLINK_TYPE); |
| 246 | if (rc < 0) { |
| 247 | LOGE(CHGR_TAG, "Fail to write: %s\n", GREEN_LED_BLINK_PATH); |
| 248 | return; |
| 249 | } |
| 250 | } |
| 251 | } else { |
| 252 | rc = set_tricolor_led(0, old_color); |
| 253 | if (rc < 0) |
| 254 | LOGE(CHGR_TAG, "Error in setting old_color on tricolor_led\n"); |
| 255 | |
| 256 | rc = set_tricolor_led(1, color); |
| 257 | if (rc < 0) |
| 258 | LOGE(CHGR_TAG, "Error in setting color on tricolor_led\n"); |
| 259 | |
| 260 | if (!rc) { |
| 261 | old_color = color; |
| 262 | LOGV(CHGR_TAG, "soc = %d, set led color 0x%x\n", soc, soc_leds[i].color); |
| 263 | } |
| 264 | } |
| 265 | } |
| 266 | } |
| 267 | |
| 268 | #define BACKLIGHT_ON_LEVEL 100 |
| 269 | #define BACKLIGHT_OFF_LEVEL 0 |
| 270 | void healthd_board_mode_charger_set_backlight(bool en) |
| 271 | { |
| 272 | int rc; |
| 273 | |
| 274 | if (access(BACKLIGHT_PATH, R_OK | W_OK) != 0) |
| 275 | { |
| 276 | LOGW(CHGR_TAG, "Backlight control not support\n"); |
| 277 | return; |
| 278 | } |
| 279 | |
| 280 | rc = write_file_int(BACKLIGHT_PATH, en ? BACKLIGHT_ON_LEVEL : |
| 281 | BACKLIGHT_OFF_LEVEL); |
| 282 | if (rc < 0) { |
| 283 | LOGE(CHGR_TAG, "Could not write to backlight node : %s\n", strerror(errno)); |
| 284 | return; |
| 285 | } |
| 286 | |
| 287 | LOGV(CHGR_TAG, "set backlight status to %d\n", en); |
| 288 | } |
| 289 | |
| 290 | static inline void get_healthd_props() |
| 291 | { |
| 292 | healthd_msm_log_en = property_get_bool("persist.healthd_msm.log_en", 1); |
| 293 | healthd_msm_store_params = |
| 294 | property_get_bool("persist.healthd_msm.store_params", 0); |
| 295 | } |
| 296 | |
| 297 | #define WAIT_BMS_READY_TIMES_MAX 200 |
| 298 | #define WAIT_BMS_READY_INTERVAL_USEC 200000 |
| 299 | void healthd_board_mode_charger_init() |
| 300 | { |
| 301 | int ret; |
| 302 | char buff[8] = "\0"; |
| 303 | int charging_enabled = 0; |
| 304 | int bms_ready = 0; |
| 305 | int wait_count = 0; |
| 306 | int fd; |
| 307 | |
| 308 | /* check the charging is enabled or not */ |
| 309 | fd = open(CHARGING_ENABLED_PATH, O_RDONLY); |
| 310 | if (fd < 0) |
| 311 | return; |
| 312 | ret = read(fd, buff, (sizeof(buff) - 1)); |
| 313 | close(fd); |
| 314 | if (ret > 0) { |
| 315 | buff[ret] = '\0'; |
| 316 | sscanf(buff, "%d\n", &charging_enabled); |
| 317 | LOGW(CHGR_TAG, "android charging is %s\n", |
| 318 | !!charging_enabled ? "enabled" : "disabled"); |
| 319 | /* if charging is disabled, reboot and exit power off charging */ |
| 320 | if (!charging_enabled) |
| 321 | android_reboot(ANDROID_RB_RESTART, 0, 0); |
| 322 | } |
| 323 | fd = open(BMS_READY_PATH, O_RDONLY); |
| 324 | if (fd < 0) |
| 325 | return; |
| 326 | while (1) { |
| 327 | ret = read(fd, buff, (sizeof(buff) - 1)); |
| 328 | if (ret > 0) { |
| 329 | buff[ret] = '\0'; |
| 330 | sscanf(buff, "%d\n", &bms_ready); |
| 331 | } else { |
| 332 | LOGE(CHGR_TAG, "read soc-ready failed, ret=%d\n", ret); |
| 333 | break; |
| 334 | } |
| 335 | |
| 336 | if ((bms_ready > 0) || (wait_count++ > WAIT_BMS_READY_TIMES_MAX)) |
| 337 | break; |
| 338 | usleep(WAIT_BMS_READY_INTERVAL_USEC); |
| 339 | lseek(fd, 0, SEEK_SET); |
| 340 | } |
| 341 | close(fd); |
| 342 | LOGV(CHGR_TAG, "Checking BMS SoC ready done %d!\n", bms_ready); |
| 343 | } |
| 344 | |
| 345 | static void healthd_batt_info_notify() |
| 346 | { |
| 347 | int rc, fd, id = 0; |
| 348 | int bms_ready = 0; |
| 349 | int wait_count = 0; |
| 350 | char buff[100] = ""; |
| 351 | int batt_info[BATT_INFO_MAX]; |
| 352 | char *ptr, *tmp, *temp_str; |
| 353 | char path_str[50] = ""; |
| 354 | bool notify_bms = false; |
| 355 | |
| 356 | if (!healthd_msm_store_params) { |
| 357 | return; |
| 358 | } |
| 359 | |
| 360 | fd = open(PERSIST_BATT_INFO_PATH, O_RDONLY); |
| 361 | if (fd < 0) { |
| 362 | LOGW(HEALTHD_TAG, "Error in opening batt_info.txt, fd=%d\n", fd); |
| 363 | fd = creat(PERSIST_BATT_INFO_PATH, S_IRWXU); |
| 364 | if (fd < 0) { |
| 365 | LOGE(HEALTHD_TAG, "Couldn't create file, fd=%d errno=%s\n", fd, |
| 366 | strerror(errno)); |
| 367 | goto out; |
| 368 | } |
| 369 | LOGV(HEALTHD_TAG, "Created file %s\n", PERSIST_BATT_INFO_PATH); |
| 370 | close(fd); |
| 371 | goto out; |
| 372 | } else { |
| 373 | LOGV(HEALTHD_TAG, "opened %s\n", PERSIST_BATT_INFO_PATH); |
| 374 | } |
| 375 | |
| 376 | rc = read(fd, buff, (sizeof(buff) - 1)); |
| 377 | if (rc < 0) { |
| 378 | LOGE(HEALTHD_TAG, "Error in reading fd %d, rc=%d\n", fd, rc); |
| 379 | close(fd); |
| 380 | goto out; |
| 381 | } |
| 382 | close(fd); |
| 383 | buff[rc] = '\0'; |
| 384 | temp_str = strtok_r(buff, ":", &ptr); |
| 385 | id = 1; |
| 386 | while (temp_str != NULL && id < BATT_INFO_MAX) { |
| 387 | batt_info[id++] = (int)strtol(temp_str, &tmp, 10); |
| 388 | temp_str = strtok_r(NULL, ":", &ptr); |
| 389 | } |
| 390 | |
| 391 | if (id < BATT_INFO_MAX) { |
| 392 | LOGE(HEALTHD_TAG, "Read %d batt_info parameters\n", id); |
| 393 | goto out; |
| 394 | } |
| 395 | |
| 396 | /* Send batt_info parameters to FG driver */ |
| 397 | for (id = 1; id < BATT_INFO_MAX; id++) { |
| 398 | snprintf(path_str, sizeof(path_str), "%s", BMS_BATT_INFO_ID_PATH); |
| 399 | rc = write_file_int(path_str, id); |
| 400 | if (rc < 0) { |
| 401 | LOGE(HEALTHD_TAG, "Error in writing batt_info_id %d, rc=%d\n", id, |
| 402 | rc); |
| 403 | goto out; |
| 404 | } |
| 405 | |
| 406 | snprintf(path_str, sizeof(path_str), "%s", BMS_BATT_INFO_PATH); |
| 407 | rc = write_file_int(path_str, batt_info[id]); |
| 408 | if (rc < 0) { |
| 409 | LOGE(HEALTHD_TAG, "Error in writing batt_info %d, rc=%d\n", |
| 410 | batt_info[id], rc); |
| 411 | goto out; |
| 412 | } |
| 413 | } |
| 414 | |
| 415 | notify_bms = true; |
| 416 | |
| 417 | out: |
| 418 | fd = open(BMS_READY_PATH, O_RDONLY); |
| 419 | if (fd < 0) { |
| 420 | LOGE(HEALTHD_TAG, "Couldn't open %s\n", BMS_READY_PATH); |
| 421 | return; |
| 422 | } |
| 423 | |
| 424 | /* Wait for soc_reporting_ready */ |
| 425 | wait_count = 0; |
| 426 | memset(buff, 0, sizeof(buff)); |
| 427 | while (1) { |
| 428 | rc = read(fd, buff, 1); |
| 429 | if (rc > 0) { |
| 430 | sscanf(buff, "%d\n", &bms_ready); |
| 431 | } else { |
| 432 | LOGE(HEALTHD_TAG, "read soc-ready failed, rc=%d\n", rc); |
| 433 | break; |
| 434 | } |
| 435 | |
| 436 | if ((bms_ready > 0) || (wait_count++ > WAIT_BMS_READY_TIMES_MAX)) |
| 437 | break; |
| 438 | |
| 439 | usleep(WAIT_BMS_READY_INTERVAL_USEC); |
| 440 | lseek(fd, 0, SEEK_SET); |
| 441 | } |
| 442 | close(fd); |
| 443 | |
| 444 | if (!bms_ready) |
| 445 | notify_bms = false; |
| 446 | |
| 447 | if (!notify_bms) { |
| 448 | LOGE(HEALTHD_TAG, "Not notifying BMS\n"); |
| 449 | return; |
| 450 | } |
| 451 | |
| 452 | /* Notify FG driver */ |
| 453 | snprintf(path_str, sizeof(path_str), "%s", BMS_BATT_INFO_ID_PATH); |
| 454 | rc = write_file_int(path_str, BATT_INFO_NOTIFY); |
| 455 | if (rc < 0) { |
| 456 | LOGE(HEALTHD_TAG, "Error in writing batt_info_id, rc=%d\n", rc); |
| 457 | return; |
| 458 | } |
| 459 | |
| 460 | snprintf(path_str, sizeof(path_str), "%s", BMS_BATT_INFO_PATH); |
| 461 | rc = write_file_int(path_str, INT_MAX - 1); |
| 462 | if (rc < 0) |
| 463 | LOGE(HEALTHD_TAG, "Error in writing batt_info, rc=%d\n", rc); |
| 464 | } |
| 465 | |
| 466 | void healthd_board_init(struct healthd_config*) |
| 467 | { |
| 468 | // use defaults |
| 469 | get_healthd_props(); |
| 470 | power_off_alarm_init(); |
| 471 | healthd_batt_info_notify(); |
| 472 | } |
| 473 | |
| 474 | static void healthd_store_batt_props(const struct android::BatteryProperties* props) |
| 475 | { |
| 476 | char buff[100]; |
| 477 | int fd, rc, len, batteryId = 0; |
| 478 | |
| 479 | if (!healthd_msm_store_params) { |
| 480 | return; |
| 481 | } |
| 482 | |
| 483 | if (!props->batteryPresent) { |
| 484 | return; |
| 485 | } |
| 486 | |
| 487 | if (props->batteryLevel == 0 || props->batteryVoltage == 0) { |
| 488 | return; |
| 489 | } |
| 490 | |
| 491 | memset(buff, 0, sizeof(buff)); |
| 492 | fd = open(BMS_BATT_RES_ID_PATH, O_RDONLY); |
| 493 | if (fd < 0) { |
| 494 | if (!healthd_msm_err_log_once) { |
| 495 | LOGE(HEALTHD_TAG, "Couldn't open %s\n", BMS_BATT_RES_ID_PATH); |
| 496 | healthd_msm_err_log_once = true; |
| 497 | } |
| 498 | } else { |
| 499 | rc = read(fd, buff, 6); |
| 500 | if (rc > 0) { |
| 501 | sscanf(buff, "%d\n", &batteryId); |
| 502 | batteryId /= 1000; |
| 503 | } else if (!healthd_msm_err_log_once) { |
| 504 | LOGE(HEALTHD_TAG, "reading batt_res_id failed, rc=%d\n", rc); |
| 505 | healthd_msm_err_log_once = true; |
| 506 | } |
| 507 | } |
| 508 | |
| 509 | if (fd >= 0) |
| 510 | close(fd); |
| 511 | |
| 512 | if (props->batteryLevel == batt_info_cached[BATT_INFO_SOC] && |
| 513 | props->batteryVoltage == batt_info_cached[BATT_INFO_VOLTAGE] && |
| 514 | props->batteryTemperature == batt_info_cached[BATT_INFO_TEMP] && |
| 515 | props->batteryFullCharge == batt_info_cached[BATT_INFO_FCC] && |
| 516 | batteryId == batt_info_cached[BATT_INFO_RES_ID]) |
| 517 | return; |
| 518 | |
| 519 | fd = open(PERSIST_BATT_INFO_PATH, O_RDWR | O_TRUNC); |
| 520 | if (fd < 0) { |
| 521 | /* |
| 522 | * Print the error just only once as this function can be called as |
| 523 | * long as the system is running and logs should not flood the console. |
| 524 | */ |
| 525 | if (!healthd_msm_err_log_once) { |
| 526 | LOGE(HEALTHD_TAG, "Error in opening batt_info.txt, fd=%d\n", fd); |
| 527 | healthd_msm_err_log_once = true; |
| 528 | } |
| 529 | return; |
| 530 | } |
| 531 | |
| 532 | len = snprintf(buff, sizeof(buff), "%d:%d:%d:%d:%d", props->batteryLevel, |
| 533 | batteryId, props->batteryVoltage, |
| 534 | props->batteryTemperature, props->batteryFullCharge); |
| 535 | if (len < 0) { |
| 536 | if (!healthd_msm_err_log_once) { |
| 537 | LOGE(HEALTHD_TAG, "Error in printing to buff, len=%d\n", len); |
| 538 | healthd_msm_err_log_once = true; |
| 539 | } |
| 540 | goto out; |
| 541 | } |
| 542 | |
| 543 | buff[len] = '\0'; |
| 544 | rc = write(fd, buff, sizeof(buff)); |
| 545 | if (rc < 0) { |
| 546 | if (!healthd_msm_err_log_once) { |
| 547 | LOGE(HEALTHD_TAG, "Error in writing to batt_info.txt, rc=%d\n", rc); |
| 548 | healthd_msm_err_log_once = true; |
| 549 | } |
| 550 | goto out; |
| 551 | } |
| 552 | |
| 553 | batt_info_cached[BATT_INFO_SOC] = props->batteryLevel; |
| 554 | batt_info_cached[BATT_INFO_RES_ID] = batteryId; |
| 555 | batt_info_cached[BATT_INFO_VOLTAGE] = props->batteryVoltage; |
| 556 | batt_info_cached[BATT_INFO_TEMP] = props->batteryTemperature; |
| 557 | batt_info_cached[BATT_INFO_FCC] = props->batteryFullCharge; |
| 558 | |
| 559 | out: |
| 560 | if (fd >= 0) |
| 561 | close(fd); |
| 562 | } |
| 563 | |
| 564 | int healthd_board_battery_update(struct android::BatteryProperties* props) |
| 565 | { |
| 566 | // return 0 to log periodic polled battery status to kernel log |
| 567 | healthd_store_batt_props(props); |
| 568 | if (healthd_msm_log_en) |
| 569 | return 0; |
| 570 | return 1; |
| 571 | } |