diff options
| -rw-r--r-- | board/cheza/board.h | 1 | ||||
| -rw-r--r-- | board/cheza/build.mk | 2 | ||||
| -rw-r--r-- | board/cheza/led.c | 163 |
3 files changed, 165 insertions, 1 deletions
diff --git a/board/cheza/board.h b/board/cheza/board.h index f2d7b8fdd0..03e817d27e 100644 --- a/board/cheza/board.h +++ b/board/cheza/board.h @@ -25,6 +25,7 @@ /* EC Modules */ #define CONFIG_I2C #define CONFIG_I2C_MASTER +#define CONFIG_LED_COMMON #define CONFIG_ADC #undef CONFIG_PWM #undef CONFIG_PECI diff --git a/board/cheza/build.mk b/board/cheza/build.mk index 7fcb2acffd..3958fb483e 100644 --- a/board/cheza/build.mk +++ b/board/cheza/build.mk @@ -10,4 +10,4 @@ CHIP:=npcx CHIP_FAMILY:=npcx7 CHIP_VARIANT:=npcx7m7wb -board-y=battery.o board.o usb_pd_policy.o +board-y=battery.o board.o led.o usb_pd_policy.o diff --git a/board/cheza/led.c b/board/cheza/led.c new file mode 100644 index 0000000000..3064f46e70 --- /dev/null +++ b/board/cheza/led.c @@ -0,0 +1,163 @@ +/* Copyright 2018 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. + */ + +#include "battery.h" +#include "charge_manager.h" +#include "charge_state.h" +#include "chipset.h" +#include "ec_commands.h" +#include "gpio.h" +#include "hooks.h" +#include "host_command.h" +#include "led_common.h" +#include "system.h" +#include "util.h" + +#define BAT_LED_ON 1 +#define BAT_LED_OFF 0 + +const enum ec_led_id supported_led_ids[] = { + EC_LED_ID_LEFT_LED, + EC_LED_ID_RIGHT_LED, +}; + +const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids); + +enum led_color { + LED_OFF = 0, + LED_AMBER, + LED_WHITE, + LED_COLOR_COUNT /* Number of colors, not a color itself */ +}; + +static void side_led_set_color(int port, enum led_color color) +{ + gpio_set_level(port ? GPIO_CHG_LED_Y_C1 : GPIO_CHG_LED_Y_C0, + (color == LED_AMBER) ? BAT_LED_ON : BAT_LED_OFF); + gpio_set_level(port ? GPIO_CHG_LED_W_C1 : GPIO_CHG_LED_W_C0, + (color == LED_WHITE) ? BAT_LED_ON : BAT_LED_OFF); +} + +void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range) +{ + brightness_range[EC_LED_COLOR_AMBER] = 1; + brightness_range[EC_LED_COLOR_WHITE] = 1; +} + +int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness) +{ + int port; + + switch (led_id) { + case EC_LED_ID_LEFT_LED: + port = 0; + break; + case EC_LED_ID_RIGHT_LED: + port = 1; + break; + default: + return EC_ERROR_PARAM1; + } + + if (brightness[EC_LED_COLOR_WHITE] != 0) + side_led_set_color(port, LED_WHITE); + else if (brightness[EC_LED_COLOR_AMBER] != 0) + side_led_set_color(port, LED_AMBER); + else + side_led_set_color(port, LED_OFF); + + return EC_SUCCESS; +} + +/* + * Set active charge port color to the parameter, turn off all others. + * If no port is active (-1), turn off all LEDs. + */ +static void set_active_port_color(enum led_color color) +{ + int port = charge_manager_get_active_charge_port(); + + if (led_auto_control_is_enabled(EC_LED_ID_LEFT_LED)) + side_led_set_color(0, (port == 0) ? color : LED_OFF); + if (led_auto_control_is_enabled(EC_LED_ID_RIGHT_LED)) + side_led_set_color(1, (port == 1) ? color : LED_OFF); +} + +static void board_led_set_battery(void) +{ + static int battery_ticks; + uint32_t chflags = charge_get_flags(); + + battery_ticks++; + + switch (charge_get_state()) { + case PWR_STATE_CHARGE: + /* Always indicate when charging, even in suspend. */ + set_active_port_color(LED_AMBER); + break; + case PWR_STATE_DISCHARGE: + if (led_auto_control_is_enabled(EC_LED_ID_LEFT_LED)) { + if (charge_get_percent() <= 10) + side_led_set_color(0, + (battery_ticks & 0x4) ? LED_WHITE : LED_OFF); + else + side_led_set_color(0, LED_OFF); + } + + if (led_auto_control_is_enabled(EC_LED_ID_RIGHT_LED)) + side_led_set_color(1, LED_OFF); + break; + case PWR_STATE_ERROR: + set_active_port_color((battery_ticks & 0x2) ? + LED_WHITE : LED_OFF); + break; + case PWR_STATE_CHARGE_NEAR_FULL: + set_active_port_color(LED_WHITE); + break; + case PWR_STATE_IDLE: /* External power connected in IDLE */ + if (chflags & CHARGE_FLAG_FORCE_IDLE) + set_active_port_color((battery_ticks & 0x4) ? + LED_AMBER : LED_OFF); + else + set_active_port_color(LED_WHITE); + break; + default: + /* Other states don't alter LED behavior */ + break; + } +} + +/* Called by hook task every TICK */ +static void led_tick(void) +{ + board_led_set_battery(); +} +DECLARE_HOOK(HOOK_TICK, led_tick, HOOK_PRIO_DEFAULT); + +void led_control(enum ec_led_id led_id, enum ec_led_state state) +{ + enum led_color color; + + if ((led_id != EC_LED_ID_RECOVERY_HW_REINIT_LED) && + (led_id != EC_LED_ID_SYSRQ_DEBUG_LED)) + return; + + if (state == LED_STATE_RESET) { + led_auto_control(EC_LED_ID_LEFT_LED, 1); + led_auto_control(EC_LED_ID_RIGHT_LED, 1); + board_led_set_battery(); + return; + } + + color = state ? LED_WHITE : LED_OFF; + + led_auto_control(EC_LED_ID_LEFT_LED, 0); + led_auto_control(EC_LED_ID_RIGHT_LED, 0); + + side_led_set_color(0, color); + side_led_set_color(1, color); +} |