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/* Copyright 2020 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Power and battery LED control for madoo
*/
#include "charge_state.h"
#include "driver/tcpm/tcpci.h"
#include "ec_commands.h"
#include "gpio.h"
#include "led_common.h"
#include "led_onoff_states.h"
#include "hooks.h"
#include "system.h"
#define LED_OFF_LVL 1
#define LED_ON_LVL 0
__override const int led_charge_lvl_1;
__override const int led_charge_lvl_2 = 100;
/* madoo: Note there is only LED for charge / power */
__override struct led_descriptor
led_bat_state_table[LED_NUM_STATES][LED_NUM_PHASES] = {
[STATE_CHARGING_LVL_1] = {{EC_LED_COLOR_AMBER, LED_INDEFINITE} },
[STATE_CHARGING_LVL_2] = {{EC_LED_COLOR_AMBER, LED_INDEFINITE} },
[STATE_CHARGING_FULL_CHARGE] = {{EC_LED_COLOR_WHITE, LED_INDEFINITE} },
[STATE_DISCHARGE_S0] = {{LED_OFF, LED_INDEFINITE} },
[STATE_DISCHARGE_S0_BAT_LOW] = {{EC_LED_COLOR_AMBER, 1 * LED_ONE_SEC},
{LED_OFF, 1 * LED_ONE_SEC} },
/* STATE_DISCHARGE_S3 will changed if sku is clamshells */
[STATE_DISCHARGE_S3] = {{LED_OFF, LED_INDEFINITE} },
[STATE_DISCHARGE_S5] = {{LED_OFF, LED_INDEFINITE} },
[STATE_BATTERY_ERROR] = {{EC_LED_COLOR_AMBER, 0.5 * LED_ONE_SEC},
{LED_OFF, 0.5 * LED_ONE_SEC} },
};
__override const struct led_descriptor
led_pwr_state_table[PWR_LED_NUM_STATES][LED_NUM_PHASES] = {
[PWR_LED_STATE_ON] = {{EC_LED_COLOR_WHITE, LED_INDEFINITE} },
[PWR_LED_STATE_SUSPEND_AC] = {{EC_LED_COLOR_WHITE, 1 * LED_ONE_SEC},
{LED_OFF, 1 * LED_ONE_SEC} },
[PWR_LED_STATE_SUSPEND_NO_AC] = {{EC_LED_COLOR_WHITE, 1 * LED_ONE_SEC},
{LED_OFF, 1 * LED_ONE_SEC} },
[PWR_LED_STATE_OFF] = {{LED_OFF, LED_INDEFINITE} },
};
const enum ec_led_id supported_led_ids[] = {
EC_LED_ID_BATTERY_LED,
EC_LED_ID_POWER_LED
};
const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids);
__override void led_set_color_power(enum ec_led_colors color)
{
if (color == EC_LED_COLOR_WHITE)
gpio_set_level(GPIO_PWR_LED_WHITE_L, LED_ON_LVL);
else
/* LED_OFF and unsupported colors */
gpio_set_level(GPIO_PWR_LED_WHITE_L, LED_OFF_LVL);
}
/*
* Turn off battery LED, if AC is present but battery is not charging.
* It could be caused by battery's protection like OTP.
*/
int battery_safety_check(void)
{
uint8_t data[6];
int rv;
/* ignore battery in error state because it has other behavior */
if (charge_get_state() == PWR_STATE_ERROR)
return false;
/* turn off LED due to a safety fault */
rv = sb_read_mfgacc(PARAM_SAFETY_STATUS,
SB_ALT_MANUFACTURER_ACCESS, data, sizeof(data));
if (rv)
return false;
/*
* Each bit represents for one safey status, and normally they should
* all be 0. Data reads from LSB to MSB.
* data[2] - BIT 7-0
* AOLDL, AOLD, OCD2, OCD1, OCC2, OCC1, COV, CUV
*
* data[3] - BIT 15-8
* RSVD, CUVC, OTD, OTC, ASCDL, ASCD, ASCCL, ASCC
*
* data[4] - BIT 23-16
* CHGC, OC, RSVD, CTO, RSVD, PTO, RSVD, OTF
*
* data[5] - BIT 31-24
* RSVD, RSVD, OCDL, COVL, UTD, UTC, PCHGC, CHGV
*/
if (data[2] || data[3] || data[4] || data[5])
return true;
return false;
}
__override void led_set_color_battery(enum ec_led_colors color)
{
switch (color) {
case EC_LED_COLOR_WHITE:
/* Ports are controlled by different GPIO */
if (battery_safety_check()) {
gpio_set_level(GPIO_BAT_LED_WHITE_L, LED_OFF_LVL);
gpio_set_level(GPIO_EC_CHG_LED_R_W, LED_OFF_LVL);
} else if (charge_manager_get_active_charge_port() == 1 ||
system_get_board_version() < 3) {
gpio_set_level(GPIO_BAT_LED_WHITE_L, LED_ON_LVL);
gpio_set_level(GPIO_BAT_LED_AMBER_L, LED_OFF_LVL);
} else if (charge_manager_get_active_charge_port() == 0) {
gpio_set_level(GPIO_EC_CHG_LED_R_W, LED_ON_LVL);
gpio_set_level(GPIO_EC_CHG_LED_R_Y, LED_OFF_LVL);
}
break;
case EC_LED_COLOR_AMBER:
/* Ports are controlled by different GPIO */
if (battery_safety_check()) {
gpio_set_level(GPIO_BAT_LED_AMBER_L, LED_OFF_LVL);
gpio_set_level(GPIO_EC_CHG_LED_R_Y, LED_OFF_LVL);
} else if (charge_get_state() == PWR_STATE_ERROR &&
system_get_board_version() >= 3) {
gpio_set_level(GPIO_EC_CHG_LED_R_W, LED_OFF_LVL);
gpio_set_level(GPIO_EC_CHG_LED_R_Y, LED_ON_LVL);
} else if (charge_manager_get_active_charge_port() == 1 ||
system_get_board_version() < 3) {
gpio_set_level(GPIO_BAT_LED_WHITE_L, LED_OFF_LVL);
gpio_set_level(GPIO_BAT_LED_AMBER_L, LED_ON_LVL);
gpio_set_level(GPIO_EC_CHG_LED_R_Y, LED_OFF_LVL);
} else if (charge_manager_get_active_charge_port() == 0) {
gpio_set_level(GPIO_EC_CHG_LED_R_W, LED_OFF_LVL);
gpio_set_level(GPIO_EC_CHG_LED_R_Y, LED_ON_LVL);
} else if (charge_get_percent() <
CONFIG_LED_ONOFF_STATES_BAT_LOW) {
gpio_set_level(GPIO_EC_CHG_LED_R_W, LED_OFF_LVL);
gpio_set_level(GPIO_EC_CHG_LED_R_Y, LED_ON_LVL);
}
break;
default: /* LED_OFF and other unsupported colors */
gpio_set_level(GPIO_BAT_LED_WHITE_L, LED_OFF_LVL);
gpio_set_level(GPIO_BAT_LED_AMBER_L, LED_OFF_LVL);
gpio_set_level(GPIO_EC_CHG_LED_R_W, LED_OFF_LVL);
gpio_set_level(GPIO_EC_CHG_LED_R_Y, LED_OFF_LVL);
break;
}
}
void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range)
{
if (led_id == EC_LED_ID_BATTERY_LED) {
brightness_range[EC_LED_COLOR_WHITE] = 1;
brightness_range[EC_LED_COLOR_AMBER] = 1;
} else if (led_id == EC_LED_ID_POWER_LED) {
brightness_range[EC_LED_COLOR_WHITE] = 1;
}
}
int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness)
{
if (led_id == EC_LED_ID_BATTERY_LED) {
if (brightness[EC_LED_COLOR_WHITE] != 0)
led_set_color_battery(EC_LED_COLOR_WHITE);
else if (brightness[EC_LED_COLOR_AMBER] != 0)
led_set_color_battery(EC_LED_COLOR_AMBER);
else
led_set_color_battery(LED_OFF);
} else if (led_id == EC_LED_ID_POWER_LED) {
if (brightness[EC_LED_COLOR_WHITE] != 0)
led_set_color_power(EC_LED_COLOR_WHITE);
else
led_set_color_power(LED_OFF);
}
return EC_SUCCESS;
}
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