1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 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 * $FreeBSD$ 30 */ 31 32 #ifndef _BCM2835_SPIVAR_H_ 33 #define _BCM2835_SPIVAR_H_ 34 35 /* 36 * Only the available pins are listed here. 37 * i.e. CS2 isn't available. 38 */ 39 uint32_t bcm_spi_pins[] = { 40 7, /* CS1 */ 41 8, /* CS0 */ 42 9, /* MISO */ 43 10, /* MOSI */ 44 11 /* SCLK */ 45 }; 46 47 struct bcm_spi_softc { 48 device_t sc_dev; 49 struct mtx sc_mtx; 50 struct resource * sc_mem_res; 51 struct resource * sc_irq_res; 52 struct spi_command *sc_cmd; 53 bus_space_tag_t sc_bst; 54 bus_space_handle_t sc_bsh; 55 uint32_t sc_len; 56 uint32_t sc_read; 57 uint32_t sc_flags; 58 uint32_t sc_written; 59 void * sc_intrhand; 60 }; 61 62 #define BCM_SPI_BUSY 0x1 63 64 #define BCM_SPI_WRITE(_sc, _off, _val) \ 65 bus_space_write_4(_sc->sc_bst, _sc->sc_bsh, _off, _val) 66 #define BCM_SPI_READ(_sc, _off) \ 67 bus_space_read_4(_sc->sc_bst, _sc->sc_bsh, _off) 68 69 #define BCM_SPI_LOCK(_sc) \ 70 mtx_lock(&(_sc)->sc_mtx) 71 #define BCM_SPI_UNLOCK(_sc) \ 72 mtx_unlock(&(_sc)->sc_mtx) 73 74 #endif /* _BCM2835_SPIVAR_H_ */ 75