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/*
* Copyright (C) 2011 Samsung Electronics Co. Ltd. All Rights Reserved.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef _LEDS_AN30259A_H
#define _LEDS_AN30259A_H
#include <linux/ioctl.h>
#include <linux/types.h>
#define LED_LIGHT_OFF 0
#define LED_LIGHT_ON 1
#define LED_LIGHT_PULSE 2
#define LED_LIGHT_SLOPE 3
/*
* This struct gets passed to the ioctl call.
* If only one of struct gets passed to the ioctl then it is assumed to define
* the behavior for all 3 color components: R, G and B.
* If 3 structs are passed, then each one is assumed to describe a single color:
* R first, then G, then B.
*
* Requesting a color value of 0 is equivalent to requesting LED_LIGHT_OFF
*
* If only describing a single color (ie passing a single struct), then
* start_delay will get ignored
*
* Other parameters may get ignored depending on the requested state:
* LIGHT_ON only requires color
* LIGHT_PULSE requires color, time_on and time_off
*
* Total time for time_slope_up_1 + time_slope_up_2 + time_on as well as for
* time_slope_down_1 + time_slope_down_2 + time_off will be rounded up to the
* nearest .5 seconds.
*
* Each of the time_slope_* values will get rounded up to the nearest multiple
* of 4ms up to 7680ms
*/
struct an30259a_pr_control {
/* LED color in RGB format */
__u32 color;
/* see defines above */
__u32 state;
/* initial delay in ms */
__u16 start_delay;
/* time to reach mid_brightness_up from off in ms */
__u16 time_slope_up_1;
/* time to reach color from mid_brightness_up in ms */
__u16 time_slope_up_2;
/* time at max brightness in ms */
__u16 time_on;
/* time to reach mid_brightness_down from max brightness in ms */
__u16 time_slope_down_1;
/* time to reach off from mid_brightness_down in ms */
__u16 time_slope_down_2;
/* time off in ms */
__u16 time_off;
/* mid point brightness in 1/128 increments of color */
__u8 mid_brightness;
} __packed;
#define AN30259A_PR_SET_LED _IOW('S', 42, struct an30259a_pr_control)
#define AN30259A_PR_SET_LEDS _IOW('S', 43, struct an30259a_pr_control[3])
#define AN30259A_PR_SET_IMAX _IOW('S', 44, __u8)
#endif /* _LEDS_AN30259A_H */
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