xref: /netbsd-src/sys/arch/arm/xscale/pxa2x0_mci.h (revision 2388feef6162e5f55bc0fbaaa9d32d8dfc8354a3)
1 /*	$NetBSD: pxa2x0_mci.h,v 1.2 2012/01/21 19:44:28 nonaka Exp $	*/
2 
3 /*-
4  * Copyright (C) 2006 NONAKA Kimihiro <nonaka@netbsd.org>
5  * All rights reserved.
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 THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 
28 #ifndef	_PXA2X0_MCI_H_
29 #define	_PXA2X0_MCI_H_
30 
31 #include <sys/bus.h>
32 #include <sys/device.h>
33 #include <sys/mutex.h>
34 #include <sys/condvar.h>
35 
36 #include <arm/xscale/pxa2x0_dmac.h>
37 
38 struct pxamci_tag {
39 	void		*cookie;
40 
41 	uint32_t	(*get_ocr)(void *);
42 	int		(*set_power)(void *, uint32_t);
43 	int		(*card_detect)(void *);
44 	int		(*write_protect)(void *);
45 };
46 
47 struct pxamci_softc {
48 	device_t		sc_dev;
49 	bus_space_tag_t		sc_iot;
50 	bus_space_handle_t	sc_ioh;
51 	void			*sc_ih;
52 	device_t		sc_sdmmc;
53 
54 	struct dmac_xfer	*sc_rxdx;
55 	bus_dma_segment_t	sc_rxdr;	/* read descriptor */
56 	struct dmac_xfer	*sc_txdx;
57 	bus_dma_segment_t	sc_txdr;	/* write descriptor */
58 
59 	struct pxamci_tag	sc_tag;
60 
61 	u_int			sc_caps;
62 #define	PMC_CAPS_4BIT	(1U << 0)
63 #define	PMC_CAPS_NO_DMA	(1U << 1)
64 
65 	u_int			sc_flags;
66 #define	PMF_CARDINITED	(1U << 0)
67 
68 	struct sdmmc_command * volatile sc_cmd;	/* command in progress */
69 
70 	uint32_t sc_imask;
71 
72 	uint32_t sc_ocr;			/* selected OCR */
73 	int sc_maxblklen;			/* maximum block length */
74 	int sc_buswidth;			/* current bus width */
75 
76 	u_int sc_clkmin;
77 	u_int sc_clkmax;
78 	u_int sc_clkbase;
79 	uint32_t sc_clkrt;
80 };
81 
82 int	pxamci_attach_sub(device_t, struct pxaip_attach_args *);
83 void	pxamci_card_detect_event(struct pxamci_softc *);
84 
85 #endif	/* _PXA2X0_MCI_H_ */
86