1 /*- 2 * Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org> 3 * Copyright (c) 2013 Luiz Otavio O Souza <loos@freebsd.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30 #ifndef _BCM2835_SPIVAR_H_ 31 #define _BCM2835_SPIVAR_H_ 32 33 /* 34 * Only the available pins are listed here. 35 * i.e. CS2 isn't available. 36 */ 37 uint32_t bcm_spi_pins[] = { 38 7, /* CS1 */ 39 8, /* CS0 */ 40 9, /* MISO */ 41 10, /* MOSI */ 42 11 /* SCLK */ 43 }; 44 45 struct bcm_spi_softc { 46 device_t sc_dev; 47 struct mtx sc_mtx; 48 struct resource * sc_mem_res; 49 struct resource * sc_irq_res; 50 struct spi_command *sc_cmd; 51 bus_space_tag_t sc_bst; 52 bus_space_handle_t sc_bsh; 53 uint32_t sc_len; 54 uint32_t sc_read; 55 uint32_t sc_flags; 56 uint32_t sc_written; 57 void * sc_intrhand; 58 }; 59 60 #define BCM_SPI_BUSY 0x1 61 62 #define BCM_SPI_WRITE(_sc, _off, _val) \ 63 bus_space_write_4(_sc->sc_bst, _sc->sc_bsh, _off, _val) 64 #define BCM_SPI_READ(_sc, _off) \ 65 bus_space_read_4(_sc->sc_bst, _sc->sc_bsh, _off) 66 67 #define BCM_SPI_LOCK(_sc) \ 68 mtx_lock(&(_sc)->sc_mtx) 69 #define BCM_SPI_UNLOCK(_sc) \ 70 mtx_unlock(&(_sc)->sc_mtx) 71 72 #endif /* _BCM2835_SPIVAR_H_ */ 73