src/drivers/board/rush/panel.c

/*
 * Copyright 2016 Google Inc.
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <stdint.h>

#include "base/container_of.h"
#include "base/time.h"
#include "base/xalloc.h"
#include "drivers/board/rush/panel.h"

static void rush_set_backlight(RushPanel *panel, int enable)
{
	gpio_set(panel->backlight_vdd_enable, enable);
	mdelay(10);
	gpio_set(panel->backlight_enable, enable);
}

static int rush_panel_enable(MonitorOps *me)
{
	RushPanel *panel = container_of(me, RushPanel, ops);
	rush_set_backlight(panel, 1);
	return 0;
}

static int rush_panel_disable(MonitorOps *me)
{
	RushPanel *panel = container_of(me, RushPanel, ops);
	rush_set_backlight(panel, 0);
	return 0;
}

RushPanel *new_rush_panel(GpioOps *backlight_vdd_enable,
			  GpioOps *backlight_enable)
{
	RushPanel *panel = xzalloc(sizeof(*panel));

	panel->ops.enable = &rush_panel_enable;
	panel->ops.disable = &rush_panel_disable;

	panel->backlight_vdd_enable = backlight_vdd_enable;
	panel->backlight_enable = backlight_enable;

	return panel;
}