/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2018 Emmanuel Vadot <manu@FreeBSD.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _OFW_PWM_H_
#define _OFW_PWM_H_
#include <dev/ofw/openfirm.h>
struct pwm_channel {
device_t dev;
u_int channel;
uint64_t period;
uint64_t duty;
uint32_t flags;
bool enabled;
};
typedef struct pwm_channel *pwm_channel_t;
int pwm_get_by_ofw_propidx(device_t consumer, phandle_t node,
const char *prop_name, int idx, pwm_channel_t *channel);
int pwm_get_by_ofw_idx(device_t consumer, phandle_t node, int idx,
pwm_channel_t *out_channel);
int pwm_get_by_ofw_property(device_t consumer, phandle_t node,
const char *prop_name, pwm_channel_t *out_channel);
int pwm_get_by_ofw_name(device_t consumer, phandle_t node, const char *name,
pwm_channel_t *out_channel);
#endif /* _OFW_PWM_H_ */
