1/* $NetBSD$ */
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
45struct at91spi_machdep {
46	int		(*select_slave)(void *self, int);
47};
48
49typedef	const struct at91spi_machdep *at91spi_machdep_tag_t;
50
51struct 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
77void at91spi_attach_common(device_t parent, device_t self, void *aux,
78			    at91spi_machdep_tag_t md);
79
80#endif	/* _AT91SPIVAR_H_ */
81