Files
OpenCellular/common/led_common.c
Dave Parker 63a71a6adc Peppy ectool led command
Glue between the existing ectool led command and the
led control logic.

BUG=chrome-os-partner:20776
BRANCH=peppy
TEST=Manual. Run "ectool led" commands:

Should pass:
ectool led power blue|yellow|off|auto|blue=1 yellow=1
ectool led battery blue|yellow|off|auto|blue=1 yellow=1

Should fail:
ectool led adapter <color>
ectool led power|battery red|green|white

Signed-off-by: Dave Parker <dparker@chromium.org>
Change-Id: I2540940baa553866760dd9ae62278b6b845793ef
Reviewed-on: https://gerrit.chromium.org/gerrit/64627
2013-08-07 12:43:48 -07:00

71 lines
1.8 KiB
C

/* Copyright (c) 2013 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.
*
* Common functions for blinking LEDs.
*/
#include "console.h"
#include "ec_commands.h"
#include "hooks.h"
#include "host_command.h"
#include "led_common.h"
#include "util.h"
#define LED_AUTO_CONTROL_FLAG(id) (1 << (id))
static uint32_t led_auto_control_flags = ~0x00;
static int led_is_supported(enum ec_led_id led_id)
{
int i;
for (i = 0; i < supported_led_ids_count; i++)
if (led_id == supported_led_ids[i])
return 1;
return 0;
}
void led_auto_control(enum ec_led_id led_id, int enable)
{
if (enable)
led_auto_control_flags |= LED_AUTO_CONTROL_FLAG(led_id);
else
led_auto_control_flags &= ~LED_AUTO_CONTROL_FLAG(led_id);
}
int led_auto_control_is_enabled(enum ec_led_id led_id)
{
return (led_auto_control_flags & LED_AUTO_CONTROL_FLAG(led_id)) != 0;
}
static int led_command_control(struct host_cmd_handler_args *args)
{
const struct ec_params_led_control *p = args->params;
struct ec_response_led_control *r = args->response;
int i;
args->response_size = sizeof(*r);
memset(r->brightness_range, 0, sizeof(r->brightness_range));
if (!led_is_supported(p->led_id))
return EC_RES_INVALID_PARAM;
led_get_brightness_range(p->led_id, r->brightness_range);
if (p->flags & EC_LED_FLAGS_QUERY)
return EC_RES_SUCCESS;
for (i = 0; i < EC_LED_COLOR_COUNT; i++)
if (r->brightness_range[i] == 0 && p->brightness[i] != 0)
return EC_RES_INVALID_PARAM;
if (p->flags & EC_LED_FLAGS_AUTO)
led_auto_control(p->led_id, 1);
else if (led_set_brightness(p->led_id, p->brightness) != EC_SUCCESS)
return EC_RES_INVALID_PARAM;
return EC_RES_SUCCESS;
}
DECLARE_HOST_COMMAND(EC_CMD_LED_CONTROL, led_command_control, EC_VER_MASK(1));