rt-thread/bsp/gkipc/drivers/drv_pwm.h

/*
 * File      : drv_pwm.h
 * This file is part of GK710X BSP for RT-Thread distribution.
 *
 * Copyright (c) 2017 GOKE Microelectronics Co., Ltd.
 * All rights reserved
 *
 *  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.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 *  Visit http://www.goke.com to get contact with Goke.
 *
 * Change Logs:
 * Date           Author       Notes
 */

#ifndef PWM_H_
#define PWM_H_

#include <rtthread.h>
#include <rtdef.h>

#define ENABLE_PWM (0x10)
#define DISABLE_PWM (0x11)

#define SET_PWM_DUTY_CYCLE (0x12)
#define GET_PWM_DUTY_CYCLE (0x13)

#define SET_PWM_VSYNC_MODE (0x14)
#define GET_PWM_VSYNC_MODE (0x15)

#define SET_PWM_CLOCK_DIV  (0x16)
#define SET_PWM_ACT_CHANNEL (0x17)

#define PWM_MAX_CHANNEL 8

struct pwm_param_vsync_mode
{
    rt_uint16_t speed;
    rt_uint32_t highLevelCnt;
    rt_uint32_t lowLevelCnt;
};

struct pwm_device
{
    rt_uint32_t freq;
    rt_uint32_t range;
    rt_uint32_t duty;
};

struct gk_pwm_obj
{
    int id;
    rt_uint32_t gpio_id;
};

struct pwm_driver
{
    struct gk_pwm_obj pwm[PWM_MAX_CHANNEL];
};

void rt_hw_pwm_init(void);

#endif /* PWM_H_ */