/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2019 Ian Lepore <ian@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 _PWMBUS_H_ #define _PWMBUS_H_ struct pwmbus_softc { device_t dev; u_int nchannels; }; struct pwmbus_ivars { u_int pi_channel; }; enum { PWMBUS_IVAR_CHANNEL, /* Channel used by child dev */ }; #define PWMBUS_ACCESSOR(A, B, T) \ static inline int \ pwmbus_get_ ## A(device_t dev, T *t) \ { \ return BUS_READ_IVAR(device_get_parent(dev), dev, \ PWMBUS_IVAR_ ## B, (uintptr_t *) t); \ } \ static inline int \ pwmbus_set_ ## A(device_t dev, T t) \ { \ return BUS_WRITE_IVAR(device_get_parent(dev), dev, \ PWMBUS_IVAR_ ## B, (uintptr_t) t); \ } PWMBUS_ACCESSOR(channel, CHANNEL, u_int) #ifdef FDT #define PWMBUS_FDT_PNP_INFO(t) FDTCOMPAT_PNP_INFO(t, pwmbus) #else #define PWMBUS_FDT_PNP_INFO(t) #endif extern driver_t pwmbus_driver; extern devclass_t pwmbus_devclass; extern driver_t ofw_pwmbus_driver; extern devclass_t ofw_pwmbus_devclass; #endif /* _PWMBUS_H_ */ |