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imxspivar.h revision 1.1.6.2 
      1 /*	$NetBSD: imxspivar.h,v 1.1.6.2 2014/05/22 11:39:32 yamt Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2014  Genetec Corporation.  All rights reserved.
      5  * Written by Hashimoto Kenichi for Genetec Corporation.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * 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 copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL GENETEC CORPORATION
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef	_ARM_IMX_IMXSPIVAR_H_
     30 #define	_ARM_IMX_IMXSPIVAR_H_
     31 
     32 #include <dev/spi/spivar.h>
     33 
     34 typedef struct spi_chipset_tag {
     35 	void *cookie;
     36 
     37 	int (*spi_cs_enable)(void *, int);
     38 	int (*spi_cs_disable)(void *, int);
     39 } *spi_chipset_tag_t;
     40 
     41 struct imxspi_attach_args {
     42 	bus_space_tag_t saa_iot;
     43 	bus_addr_t saa_addr;
     44 	bus_size_t saa_size;
     45 	int saa_irq;
     46 
     47 	spi_chipset_tag_t saa_tag;
     48 	int saa_nslaves;
     49 	unsigned long saa_freq;
     50 
     51 	int saa_enhanced;
     52 };
     53 
     54 struct imxspi_softc {
     55 	device_t sc_dev;
     56 	bus_space_tag_t  sc_iot;
     57 	bus_space_handle_t sc_ioh;
     58 	spi_chipset_tag_t sc_tag;
     59 
     60 	struct spi_controller sc_spi;
     61 	unsigned long sc_freq;
     62 	struct spi_chunk *sc_wchunk;
     63 	struct spi_chunk *sc_rchunk;
     64 	void *sc_ih;
     65 	struct spi_transfer *sc_transfer;
     66 	bool  sc_running;
     67 	SIMPLEQ_HEAD(,spi_transfer) sc_q;
     68 
     69 	int sc_enhanced;
     70 };
     71 
     72 int imxspi_attach_common(device_t, struct imxspi_softc *, void *);
     73 
     74 /*
     75  * defined in machine dependent code
     76  */
     77 int imxspi_match(device_t, cfdata_t, void *);
     78 void imxspi_attach(device_t, device_t, void *);
     79 
     80 #endif	/* _ARM_IMX_IMXSPIVAR_H_ */
     81