diff options
Diffstat (limited to 'board')
| -rw-r--r-- | board/nocturne/battery.c | 60 | ||||
| -rw-r--r-- | board/nocturne/board.h | 1 |
2 files changed, 61 insertions, 0 deletions
diff --git a/board/nocturne/battery.c b/board/nocturne/battery.c index 3db5fede33..67c5346063 100644 --- a/board/nocturne/battery.c +++ b/board/nocturne/battery.c @@ -8,17 +8,26 @@ #include "battery.h" #include "battery_smart.h" #include "charge_manager.h" +#include "charger.h" #include "chipset.h" +#include "charge_state_v2.h" #include "common.h" #include "console.h" #include "ec_commands.h" #include "extpower.h" #include "hooks.h" +#include "temp_sensor.h" #include "usb_pd.h" /* Shutdown mode parameter to write to manufacturer access register */ #define SB_SHUTDOWN_DATA 0x0010 +/* + * We need to stop charging the battery when the DRAM temperature sensor gets + * over 47 C (320 K), and resume charging once it cools back down. + */ +#define DRAM_STOPCHARGE_TEMP_K 320 + /* Battery info */ static const struct battery_info info = { .voltage_max = 8880, @@ -115,3 +124,54 @@ static void reduce_input_voltage_when_full(void) } } DECLARE_HOOK(HOOK_SECOND, reduce_input_voltage_when_full, HOOK_PRIO_DEFAULT); + +enum ec_status charger_profile_override_get_param(uint32_t param, + uint32_t *value) +{ + return EC_RES_INVALID_PARAM; +} + +enum ec_status charger_profile_override_set_param(uint32_t param, + uint32_t value) +{ + return EC_RES_INVALID_PARAM; +} + +static int should_stopcharge(void) +{ + int t_dram; + + /* We can only stop charging on AC, if AC is plugged in. */ + if (!gpio_get_level(GPIO_AC_PRESENT)) + return 0; + + /* + * The DRAM temperature sensor is only available when the AP is on, + * therefore only inhibit charging when we can actually read a + * temperature. + */ + if (chipset_in_state(CHIPSET_STATE_ON) && + !temp_sensor_read(TEMP_SENSOR_DRAM, &t_dram) && + (t_dram >= DRAM_STOPCHARGE_TEMP_K)) + return 1; + else + return 0; +} + +int charger_profile_override(struct charge_state_data *curr) +{ + static uint8_t stopcharge_on_ac; + int enable_stopcharge; + + enable_stopcharge = should_stopcharge(); + if (enable_stopcharge != stopcharge_on_ac) { + stopcharge_on_ac = enable_stopcharge; + if (enable_stopcharge) { + chgstate_set_manual_current(0); + } else { + chgstate_set_manual_current(-1); + } + } + + return 0; +} diff --git a/board/nocturne/board.h b/board/nocturne/board.h index 82d511ed01..868dde09ad 100644 --- a/board/nocturne/board.h +++ b/board/nocturne/board.h @@ -71,6 +71,7 @@ #define CONFIG_CHARGER_INPUT_CURRENT 128 #define CONFIG_CHARGER_ISL9238 #define CONFIG_CHARGER_MIN_BAT_PCT_FOR_POWER_ON 1 +#define CONFIG_CHARGER_PROFILE_OVERRIDE #define CONFIG_CHARGER_SENSE_RESISTOR 10 #define CONFIG_CHARGER_SENSE_RESISTOR_AC 20 #define CONFIG_EXTPOWER_GPIO |