mirror of
https://github.com/Telecominfraproject/OpenCellular.git
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eb60e291e8
BUG=None BRANCH=None TEST=make -j buildall Change-Id: I6508d2bfa01919c89a9b5c1129af35919deb1557 Signed-off-by: Aseda Aboagye <aaboagye@google.com> Reviewed-on: https://chromium-review.googlesource.com/888219 Commit-Ready: Aseda Aboagye <aaboagye@chromium.org> Tested-by: Aseda Aboagye <aaboagye@chromium.org> Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Common functions for blinking LEDs.
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*/
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#include "console.h"
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#include "ec_commands.h"
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#include "hooks.h"
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#include "host_command.h"
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#include "led_common.h"
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#include "util.h"
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#define LED_AUTO_CONTROL_FLAG(id) (1 << (id))
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static uint32_t led_auto_control_flags = ~0x00;
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static int led_is_supported(enum ec_led_id led_id)
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{
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int i;
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static int supported_leds = -1;
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if (supported_leds == -1) {
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supported_leds = 0;
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for (i = 0; i < supported_led_ids_count; i++)
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supported_leds |= (1 << supported_led_ids[i]);
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}
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return ((1 << (int)led_id) & supported_leds);
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}
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void led_auto_control(enum ec_led_id led_id, int enable)
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{
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if (enable)
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led_auto_control_flags |= LED_AUTO_CONTROL_FLAG(led_id);
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else
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led_auto_control_flags &= ~LED_AUTO_CONTROL_FLAG(led_id);
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}
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int led_auto_control_is_enabled(enum ec_led_id led_id)
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{
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if (!led_is_supported(led_id))
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return 0;
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return (led_auto_control_flags & LED_AUTO_CONTROL_FLAG(led_id)) != 0;
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}
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static int led_command_control(struct host_cmd_handler_args *args)
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{
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const struct ec_params_led_control *p = args->params;
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struct ec_response_led_control *r = args->response;
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int i;
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args->response_size = sizeof(*r);
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memset(r->brightness_range, 0, sizeof(r->brightness_range));
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if (!led_is_supported(p->led_id))
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return EC_RES_INVALID_PARAM;
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led_get_brightness_range(p->led_id, r->brightness_range);
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if (p->flags & EC_LED_FLAGS_QUERY)
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return EC_RES_SUCCESS;
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for (i = 0; i < EC_LED_COLOR_COUNT; i++)
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if (r->brightness_range[i] == 0 && p->brightness[i] != 0)
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return EC_RES_INVALID_PARAM;
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if (p->flags & EC_LED_FLAGS_AUTO) {
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led_auto_control(p->led_id, 1);
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} else {
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if (led_set_brightness(p->led_id, p->brightness) != EC_SUCCESS)
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return EC_RES_INVALID_PARAM;
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led_auto_control(p->led_id, 0);
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}
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return EC_RES_SUCCESS;
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}
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DECLARE_HOST_COMMAND(EC_CMD_LED_CONTROL, led_command_control, EC_VER_MASK(1));
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__attribute__((weak))
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void led_control(enum ec_led_id led_id, enum ec_led_state state)
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{
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/*
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* Default weak implementation that does not affect the state of
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* LED. Boards can provide their own implementation.
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*/
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}
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