1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org> 5 * Copyright (c) 2013 Luiz Otavio O Souza <loos@freebsd.org> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef _BCM2835_SPIVAR_H_ 31 #define _BCM2835_SPIVAR_H_ 32 33 struct bcm_spi_softc { 34 device_t sc_dev; 35 struct mtx sc_mtx; 36 struct resource * sc_mem_res; 37 struct resource * sc_irq_res; 38 struct spi_command *sc_cmd; 39 struct thread *sc_thread; 40 bus_space_tag_t sc_bst; 41 bus_space_handle_t sc_bsh; 42 uint32_t sc_len; 43 uint32_t sc_read; 44 uint32_t sc_flags; 45 uint32_t sc_written; 46 void * sc_intrhand; 47 }; 48 49 #define BCM_SPI_BUSY 0x1 50 #define BCM_SPI_KEEP_CS 0x2 51 52 #define BCM_SPI_WRITE(_sc, _off, _val) \ 53 bus_space_write_4(_sc->sc_bst, _sc->sc_bsh, _off, _val) 54 #define BCM_SPI_READ(_sc, _off) \ 55 bus_space_read_4(_sc->sc_bst, _sc->sc_bsh, _off) 56 57 #define BCM_SPI_LOCK(_sc) \ 58 mtx_lock(&(_sc)->sc_mtx) 59 #define BCM_SPI_UNLOCK(_sc) \ 60 mtx_unlock(&(_sc)->sc_mtx) 61 62 #endif /* _BCM2835_SPIVAR_H_ */ 63