pwmvar.h revision 1.1.2.2
1 1.1.2.2 pgoyette /* $NetBSD: pwmvar.h,v 1.1.2.2 2018/05/21 04:36:12 pgoyette Exp $ */ 2 1.1.2.2 pgoyette 3 1.1.2.2 pgoyette /*- 4 1.1.2.2 pgoyette * Copyright (c) 2018 Jared McNeill <jmcneill (at) invisible.ca> 5 1.1.2.2 pgoyette * All rights reserved. 6 1.1.2.2 pgoyette * 7 1.1.2.2 pgoyette * Redistribution and use in source and binary forms, with or without 8 1.1.2.2 pgoyette * modification, are permitted provided that the following conditions 9 1.1.2.2 pgoyette * are met: 10 1.1.2.2 pgoyette * 1. Redistributions of source code must retain the above copyright 11 1.1.2.2 pgoyette * notice, this list of conditions and the following disclaimer. 12 1.1.2.2 pgoyette * 2. Redistributions in binary form must reproduce the above copyright 13 1.1.2.2 pgoyette * notice, this list of conditions and the following disclaimer in the 14 1.1.2.2 pgoyette * documentation and/or other materials provided with the distribution. 15 1.1.2.2 pgoyette * 16 1.1.2.2 pgoyette * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 1.1.2.2 pgoyette * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 1.1.2.2 pgoyette * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 1.1.2.2 pgoyette * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 1.1.2.2 pgoyette * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 1.1.2.2 pgoyette * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 1.1.2.2 pgoyette * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 1.1.2.2 pgoyette * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 1.1.2.2 pgoyette * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 1.1.2.2 pgoyette * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 1.1.2.2 pgoyette * SUCH DAMAGE. 27 1.1.2.2 pgoyette */ 28 1.1.2.2 pgoyette 29 1.1.2.2 pgoyette #ifndef _DEV_PWM_PWMVAR_H 30 1.1.2.2 pgoyette #define _DEV_PWM_PWMVAR_H 31 1.1.2.2 pgoyette 32 1.1.2.2 pgoyette enum pwm_polarity { 33 1.1.2.2 pgoyette PWM_ACTIVE_HIGH, 34 1.1.2.2 pgoyette PWM_ACTIVE_LOW 35 1.1.2.2 pgoyette }; 36 1.1.2.2 pgoyette 37 1.1.2.2 pgoyette struct pwm_config { 38 1.1.2.2 pgoyette u_int period; /* nanoseconds */ 39 1.1.2.2 pgoyette u_int duty_cycle; /* nanoseconds */ 40 1.1.2.2 pgoyette enum pwm_polarity polarity; /* PWM_ACTIVE_{HIGH,LOW} */ 41 1.1.2.2 pgoyette }; 42 1.1.2.2 pgoyette 43 1.1.2.2 pgoyette typedef struct pwm_controller { 44 1.1.2.2 pgoyette int (*pwm_enable)(struct pwm_controller *, bool); 45 1.1.2.2 pgoyette int (*pwm_get_config)(struct pwm_controller *, 46 1.1.2.2 pgoyette struct pwm_config *); 47 1.1.2.2 pgoyette int (*pwm_set_config)(struct pwm_controller *, 48 1.1.2.2 pgoyette const struct pwm_config *); 49 1.1.2.2 pgoyette 50 1.1.2.2 pgoyette device_t pwm_dev; /* device */ 51 1.1.2.2 pgoyette void *pwm_priv; /* driver private data */ 52 1.1.2.2 pgoyette } *pwm_tag_t; 53 1.1.2.2 pgoyette 54 1.1.2.2 pgoyette int pwm_enable(pwm_tag_t); 55 1.1.2.2 pgoyette int pwm_disable(pwm_tag_t); 56 1.1.2.2 pgoyette int pwm_get_config(pwm_tag_t, struct pwm_config *); 57 1.1.2.2 pgoyette int pwm_set_config(pwm_tag_t, const struct pwm_config *); 58 1.1.2.2 pgoyette 59 1.1.2.2 pgoyette #endif /* _DEV_PWM_PWMVAR_H */ 60
Indexes created Mon Sep 29 21:09:56 GMT 2025