sys/arch/arm/xscale/pxa2x0_mci.h

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