diff options
Diffstat (limited to 'board/strago/led.c')
| -rw-r--r-- | board/strago/led.c | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/board/strago/led.c b/board/strago/led.c deleted file mode 100644 index cb0c0c313f..0000000000 --- a/board/strago/led.c +++ /dev/null @@ -1,206 +0,0 @@ -/* Copyright 2015 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/Battery LED control for Strago - */ - -#include "charge_state.h" -#include "chipset.h" -#include "console.h" -#include "extpower.h" -#include "gpio.h" -#include "hooks.h" -#include "led_common.h" -#include "pwm.h" -#include "registers.h" -#include "util.h" - -#define CPRINTF(format, args...) cprintf(CC_PWM, format, ## args) -#define CPRINTS(format, args...) cprints(CC_PWM, format, ## args) - -#define LED_TOTAL_TICKS 16 -#define LED_ON_TICKS 4 - -static int led_debug; - -const enum ec_led_id supported_led_ids[] = { - EC_LED_ID_POWER_LED, EC_LED_ID_BATTERY_LED}; -const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids); - -enum led_color { - LED_OFF = 0, - LED_RED, - LED_AMBER, - LED_GREEN, - - /* Number of colors, not a color itself */ - LED_COLOR_COUNT -}; - -/* Brightness vs. color, in the order of off, red, amber, and green */ -static const uint8_t color_brightness[LED_COLOR_COUNT][3] = { - /* {Red, Blue, Green}, */ - [LED_OFF] = { 0, 0, 0}, - [LED_RED] = {100, 0, 0}, - [LED_AMBER] = { 75, 0, 10}, - [LED_GREEN] = { 0, 0, 100}, -}; - -/** - * Set LED color - * - * @param color Enumerated color value - */ -static void set_color(enum led_color color) -{ - pwm_set_duty(PWM_CH_LED_RED, color_brightness[color][0]); - pwm_set_duty(PWM_CH_LED_BLUE, color_brightness[color][1]); - pwm_set_duty(PWM_CH_LED_GREEN, color_brightness[color][2]); -} - -void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range) -{ - brightness_range[EC_LED_COLOR_RED] = 100; - brightness_range[EC_LED_COLOR_BLUE] = 100; - brightness_range[EC_LED_COLOR_GREEN] = 100; -} - -int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness) -{ - pwm_set_duty(PWM_CH_LED_RED, brightness[EC_LED_COLOR_RED]); - pwm_set_duty(PWM_CH_LED_BLUE, brightness[EC_LED_COLOR_BLUE]); - pwm_set_duty(PWM_CH_LED_GREEN, brightness[EC_LED_COLOR_GREEN]); - return EC_SUCCESS; -} - -static void strago_led_set_power(void) -{ - static int power_ticks; - static int previous_state_suspend; - - power_ticks++; - - if (chipset_in_state(CHIPSET_STATE_SUSPEND)) { - /* Reset ticks if entering suspend so LED turns amber - * as soon as possible. */ - if (!previous_state_suspend) - power_ticks = 0; - - /* Blink once every four seconds. */ - set_color( - (power_ticks % LED_TOTAL_TICKS) < LED_ON_TICKS ? - LED_AMBER : LED_OFF); - - previous_state_suspend = 1; - return; - } - - previous_state_suspend = 0; - - if (chipset_in_state(CHIPSET_STATE_ANY_OFF)) - set_color(LED_OFF); - else if (chipset_in_state(CHIPSET_STATE_ON)) - set_color(LED_GREEN); -} - -static void strago_led_set_battery(void) -{ - static int battery_ticks; - - battery_ticks++; - - switch (charge_get_state()) { - case PWR_STATE_CHARGE: - set_color(LED_AMBER); - break; - case PWR_STATE_ERROR: - set_color(LED_RED); - break; - case PWR_STATE_CHARGE_NEAR_FULL: - case PWR_STATE_IDLE: /* External power connected in IDLE. */ - set_color(LED_GREEN); - break; - default: - /* Other states don't alter LED behavior */ - break; - } -} - -static void led_init(void) -{ - /* - * Enable PWMs and set to 0% duty cycle. If they're disabled, - * seems to ground the pins instead of letting them float. - */ - pwm_enable(PWM_CH_LED_RED, 1); - pwm_enable(PWM_CH_LED_GREEN, 1); - pwm_enable(PWM_CH_LED_BLUE, 1); - - set_color(LED_OFF); -} -DECLARE_HOOK(HOOK_INIT, led_init, HOOK_PRIO_DEFAULT); - -/** - * Called by hook task every 250 ms - */ -static void led_tick(void) -{ - if (led_debug) - return; - - if (extpower_is_present()) { - if (led_auto_control_is_enabled(EC_LED_ID_BATTERY_LED)) { - strago_led_set_battery(); - return; - } - } else if (led_auto_control_is_enabled(EC_LED_ID_POWER_LED)) { - strago_led_set_power(); - return; - } - - set_color(LED_OFF); -} -DECLARE_HOOK(HOOK_TICK, led_tick, HOOK_PRIO_DEFAULT); - -static void dump_pwm_channels(void) -{ - int ch; - for (ch = 0; ch < 4; ch++) { - CPRINTF("channel = %d\n", ch); - CPRINTF("0x%04X 0x%04X 0x%04X\n", - MEC1322_PWM_CFG(ch), - MEC1322_PWM_ON(ch), - MEC1322_PWM_OFF(ch)); - } -} -/******************************************************************/ -/* Console commands */ -static int command_led_color(int argc, char **argv) -{ - if (argc > 1) { - if (!strcasecmp(argv[1], "debug")) { - led_debug ^= 1; - CPRINTF("led_debug = %d\n", led_debug); - } else if (!strcasecmp(argv[1], "off")) { - set_color(LED_OFF); - } else if (!strcasecmp(argv[1], "red")) { - set_color(LED_RED); - } else if (!strcasecmp(argv[1], "green")) { - set_color(LED_GREEN); - } else if (!strcasecmp(argv[1], "amber")) { - set_color(LED_AMBER); - } else { - /* maybe handle charger_discharge_on_ac() too? */ - return EC_ERROR_PARAM1; - } - } - - if (led_debug == 1) - dump_pwm_channels(); - return EC_SUCCESS; -} -DECLARE_CONSOLE_COMMAND(ledcolor, command_led_color, - "[debug|red|green|amber|off]", - "Change LED color"); - |