1 /* $NetBSD: at91spivar.h,v 1.2 2008/07/03 01:15:38 matt Exp $ */ 2 3 /*- 4 * Copyright (c) 2007 Embedtronics Oy. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or 8 * without modification, are permitted provided that the following 9 * conditions are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above 13 * copyright notice, this list of conditions and the following 14 * disclaimer in the documentation and/or other materials provided 15 * with the distribution. 16 * 3. All advertising materials mentioning features or use of this 17 * software must display the following acknowledgements: 18 * This product includes software developed by the Urbana-Champaign 19 * Independent Media Center. 20 * This product includes software developed by Garrett D'Amore. 21 * 4. Urbana-Champaign Independent Media Center's name and Garrett 22 * D'Amore's name may not be used to endorse or promote products 23 * derived from this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE URBANA-CHAMPAIGN INDEPENDENT 26 * MEDIA CENTER AND GARRETT D'AMORE ``AS IS'' AND ANY EXPRESS OR 27 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 28 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE URBANA-CHAMPAIGN INDEPENDENT 30 * MEDIA CENTER OR GARRETT D'AMORE BE LIABLE FOR ANY DIRECT, INDIRECT, 31 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 32 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 33 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 34 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 35 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 37 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 #ifndef _AT91SPIVAR_H_ 41 #define _AT91SPIVAR_H_ 42 43 #include <dev/spi/spivar.h> 44 45 struct at91spi_machdep { 46 int (*select_slave)(void *self, int); 47 }; 48 49 typedef const struct at91spi_machdep *at91spi_machdep_tag_t; 50 51 struct at91spi_softc { 52 device_t sc_dev; 53 bus_space_tag_t sc_iot; 54 bus_space_handle_t sc_ioh; 55 56 bus_dma_tag_t sc_dmat; 57 58 int sc_pid; /* peripheral identifier */ 59 struct spi_controller sc_spi; /* SPI implementation ops */ 60 at91spi_machdep_tag_t sc_md; /* board-specific support */ 61 struct at91spi_job *sc_job; /* current job */ 62 struct spi_chunk *sc_wchunk; 63 struct spi_chunk *sc_rchunk; 64 void *sc_ih; /* interrupt handler (what?) */ 65 66 void *sc_dmapage; 67 bus_addr_t sc_dmaaddr; 68 bus_dmamap_t sc_dmamap; 69 int sc_dmaoffs; /* current dma offset */ 70 71 struct spi_transfer *sc_transfer; 72 bool sc_running; /* is it processing stuff? */ 73 74 SIMPLEQ_HEAD(,spi_transfer) sc_q; 75 }; 76 77 void at91spi_attach_common(device_t parent, device_t self, void *aux, 78 at91spi_machdep_tag_t md); 79 80 #endif /* _AT91SPIVAR_H_ */ 81