diff options
| -rw-r--r-- | board/eve/battery.c | 101 |
1 files changed, 97 insertions, 4 deletions
diff --git a/board/eve/battery.c b/board/eve/battery.c index 84d13244bc..fad21c2249 100644 --- a/board/eve/battery.c +++ b/board/eve/battery.c @@ -13,16 +13,41 @@ #include "ec_commands.h" #include "extpower.h" #include "gpio.h" +#include "hooks.h" #include "util.h" +#define CPRINTS(format, args...) cprints(CC_CHARGER, format, ## args) + /* Shutdown mode parameter to write to manufacturer access register */ #define SB_SHUTDOWN_DATA 0x0010 +enum battery_type { + BATTERY_LG, + BATTERY_LISHEN, + BATTERY_TYPE_COUNT, +}; + +struct board_batt_params { + const char *manuf_name; + const struct battery_info *batt_info; +}; + +/* + * Set LISHEN as default since the LG precharge current level could cause the + * LISHEN battery to not accept charge when it's recovering from a fully + * discharged state. + */ +#define DEFAULT_BATTERY_TYPE BATTERY_LISHEN static enum battery_present batt_pres_prev = BP_NOT_SURE; +static enum battery_type board_battery_type = BATTERY_TYPE_COUNT; -/* Battery info for proto */ -static const struct battery_info info = { - .voltage_max = 8800, /* mV */ +/* + * Battery info for LG A50. Note that the fields start_charging_min/max and + * charging_min/max are not used for the Eve charger. The effective temperature + * limits are given by discharging_min/max_c. + */ +static const struct battery_info batt_info_lg = { + .voltage_max = 8800, /* mV */ .voltage_normal = 7700, .voltage_min = 6100, /* Add 100mV for charger accuracy */ .precharge_current = 256, /* mA */ @@ -34,9 +59,77 @@ static const struct battery_info info = { .discharging_max_c = 60, }; +/* + * Battery info for LISHEN. Note that the fields start_charging_min/max and + * charging_min/max are not used for the Eve charger. The effective temperature + * limits are given by discharging_min/max_c. + */ +static const struct battery_info batt_info_lishen = { + .voltage_max = 8750, /* mV */ + .voltage_normal = 7700, + .voltage_min = 6100, /* Add 100mV for charger accuracy */ + .precharge_current = 88, /* mA */ + .start_charging_min_c = 0, + .start_charging_max_c = 46, + .charging_min_c = 10, + .charging_max_c = 50, + .discharging_min_c = 10, + .discharging_max_c = 50, +}; + +static const struct board_batt_params info[] = { + [BATTERY_LG] = { + .manuf_name = "LG A50", + .batt_info = &batt_info_lg, + }, + + [BATTERY_LISHEN] = { + .manuf_name = "Lishen A50", + .batt_info = &batt_info_lishen, + }, + +}; +BUILD_ASSERT(ARRAY_SIZE(info) == BATTERY_TYPE_COUNT); + +/* Get type of the battery connected on the board */ +static int board_get_battery_type(void) +{ + char name[3]; + int i; + + if (!battery_manufacturer_name(name, sizeof(name))) { + for (i = 0; i < BATTERY_TYPE_COUNT; i++) { + if (!strncasecmp(name, info[i].manuf_name, + ARRAY_SIZE(name)-1)) { + board_battery_type = i; + break; + } + } + } + + return board_battery_type; +} + +/* + * Initialize the battery type for the board. + * + * Very first battery info is called by the charger driver to initialize + * the charger parameters hence initialize the battery type for the board + * as soon as the I2C is initialized. + */ +static void board_init_battery_type(void) +{ + if (board_get_battery_type() != BATTERY_TYPE_COUNT) + CPRINTS("found batt: %s", info[board_battery_type].manuf_name); + else + CPRINTS("battery not found"); +} +DECLARE_HOOK(HOOK_INIT, board_init_battery_type, HOOK_PRIO_INIT_I2C + 1); + const struct battery_info *battery_get_info(void) { - return &info; + return info[board_battery_type == BATTERY_TYPE_COUNT ? + DEFAULT_BATTERY_TYPE : board_battery_type].batt_info; } int board_cut_off_battery(void) |