1b9353973SIan Lepore /*- 2*4d846d26SWarner Losh * SPDX-License-Identifier: BSD-2-Clause 3b9353973SIan Lepore * 4b9353973SIan Lepore * Copyright (c) 2018 Emmanuel Vadot <manu@FreeBSD.org> 5b9353973SIan Lepore * 6b9353973SIan Lepore * Redistribution and use in source and binary forms, with or without 7b9353973SIan Lepore * modification, are permitted provided that the following conditions 8b9353973SIan Lepore * are met: 9b9353973SIan Lepore * 1. Redistributions of source code must retain the above copyright 10b9353973SIan Lepore * notice, this list of conditions and the following disclaimer. 11b9353973SIan Lepore * 2. Redistributions in binary form must reproduce the above copyright 12b9353973SIan Lepore * notice, this list of conditions and the following disclaimer in the 13b9353973SIan Lepore * documentation and/or other materials provided with the distribution. 14b9353973SIan Lepore * 15b9353973SIan Lepore * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16b9353973SIan Lepore * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17b9353973SIan Lepore * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18b9353973SIan Lepore * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19b9353973SIan Lepore * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20b9353973SIan Lepore * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21b9353973SIan Lepore * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22b9353973SIan Lepore * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23b9353973SIan Lepore * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24b9353973SIan Lepore * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25b9353973SIan Lepore * SUCH DAMAGE. 26b9353973SIan Lepore */ 27b9353973SIan Lepore 28b9353973SIan Lepore #ifndef _OFW_PWM_H_ 29b9353973SIan Lepore #define _OFW_PWM_H_ 30b9353973SIan Lepore 31b9353973SIan Lepore #include <dev/ofw/openfirm.h> 32b9353973SIan Lepore 33b9353973SIan Lepore struct pwm_channel { 34b9353973SIan Lepore device_t dev; 35b9353973SIan Lepore u_int channel; 36b9353973SIan Lepore uint64_t period; 37b9353973SIan Lepore uint64_t duty; 38b9353973SIan Lepore uint32_t flags; 39b9353973SIan Lepore bool enabled; 40b9353973SIan Lepore }; 41b9353973SIan Lepore typedef struct pwm_channel *pwm_channel_t; 42b9353973SIan Lepore 43b9353973SIan Lepore int pwm_get_by_ofw_propidx(device_t consumer, phandle_t node, 44b9353973SIan Lepore const char *prop_name, int idx, pwm_channel_t *channel); 45b9353973SIan Lepore int pwm_get_by_ofw_idx(device_t consumer, phandle_t node, int idx, 46b9353973SIan Lepore pwm_channel_t *out_channel); 47b9353973SIan Lepore int pwm_get_by_ofw_property(device_t consumer, phandle_t node, 48b9353973SIan Lepore const char *prop_name, pwm_channel_t *out_channel); 49b9353973SIan Lepore int pwm_get_by_ofw_name(device_t consumer, phandle_t node, const char *name, 50b9353973SIan Lepore pwm_channel_t *out_channel); 51b9353973SIan Lepore 52b9353973SIan Lepore #endif /* _OFW_PWM_H_ */ 53