sys/arch/arm/imx/imx_pcic.h

   1 /*      $Id: imx_pcic.h,v 1.2 2008/04/27 18:58:44 matt Exp $    */
   2
   3 /*
   4  * IMX CF interface to pcic/pcmcia
   5  * derived from pxa2x0_pcic
   6  * Sun Apr  1 21:42:37 PDT 2007
   7  */
   8
   9 /*      $NetBSD$        */
  10 /*      $OpenBSD: pxapcicvar.h,v 1.7 2005/12/14 15:08:51 uwe Exp $ */
  11
  12 /*
  13  * Copyright (c) 2005 Dale Rahn <drahn@openbsd.org>
  14  *
  15  * Permission to use, copy, modify, and distribute this software for any
  16  * purpose with or without fee is hereby granted, provided that the above
  17  * copyright notice and this permission notice appear in all copies.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  20  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  21  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  22  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  23  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  24  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  25  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  26  */
  27
  28 #ifndef _IMX_PCIC_H_
  29 #define _IMX_PCIC_H_
  30
  31 struct imx_pcic_socket {
  32         struct imx_pcic_softc *sc;
  33         int socket;             /* socket number */
  34         struct device *pcmcia;
  35         struct lwp *event_thread;
  36
  37         int flags;
  38         int power_capability;   /* IMX_PCIC_POWER_3V | IMX_PCIC_POWER_5V */
  39
  40         int irqpin;
  41         void *irq;
  42
  43         void *pcictag_cookie;   /* opaque data for pcictag functions */
  44         struct imx_pcic_tag *pcictag;
  45 };
  46
  47 /* event */
  48 #define IMX_PCIC_EVENT_INSERTION        0
  49 #define IMX_PCIC_EVENT_REMOVAL  1
  50
  51 /* flags */
  52 #define IMX_PCIC_FLAG_CARDD     0
  53 #define IMX_PCIC_FLAG_CARDP     1
  54
  55 struct imx_pcic_tag {
  56         u_int (*read)(struct imx_pcic_socket *, int);
  57         void (*write)(struct imx_pcic_socket *, int, u_int);
  58         void (*set_power)(struct imx_pcic_socket *, int);
  59         void (*clear_intr)(struct imx_pcic_socket *);
  60         void *(*intr_establish)(struct imx_pcic_socket *, int,
  61             int (*)(void *), void *);
  62         void (*intr_disestablish)(struct imx_pcic_socket *, void *);
  63 };
  64
  65 #ifdef NOTYET
  66 /* pcictag registers and their values */
  67 #define IMX_PCIC_CARD_STATUS    0
  68 #define  IMX_PCIC_CARD_INVALID  0
  69 #define  IMX_PCIC_CARD_VALID    1
  70 #define IMX_PCIC_CARD_READY     1
  71 #define IMX_PCIC_CARD_POWER     2
  72 #define  IMX_PCIC_POWER_OFF     0
  73 #define  IMX_PCIC_POWER_3V      1
  74 #define  IMX_PCIC_POWER_5V      2
  75 #define IMX_PCIC_CARD_RESET     3
  76 #endif
  77
  78 #define IMX_PCIC_NSLOT  1                       /* ??? */
  79
  80 struct imx_pcic_softc {
  81         struct device sc_dev;
  82         struct imx_pcic_socket sc_socket[IMX_PCIC_NSLOT];
  83
  84         bus_space_tag_t sc_iot;
  85         bus_space_handle_t sc_memctl_ioh;
  86
  87         bus_addr_t sc_pa;
  88
  89         void *sc_irq;
  90         int sc_shutdown;
  91         int sc_nslots;
  92         int sc_irqpin[IMX_PCIC_NSLOT];
  93         int sc_irqcfpin[IMX_PCIC_NSLOT];
  94
  95         u_int sc_flags;
  96 #define PPF_REVERSE_ORDER       (1 << 0)
  97 };
  98
  99 void    imx_pcic_attach_common(struct imx_pcic_softc *,
 100             void (*socket_setup_hook)(struct imx_pcic_socket *));
 101 int     imx_pcic_intr(void *);
 102 void    imx_pcic_create_event_thread(void *);
 103
 104 #endif  /* _IMX_PCIC_H_ */