Subversion Repositories or1k

/*

 * linux/include/asm/arch/pcmcia.h

 *

 * Copyright (C) 2000 John G Dorsey <john+@cs.cmu.edu>

 *

 * This file contains definitions for the low-level SA-1100 kernel PCMCIA

 * interface. Please see linux/Documentation/arm/SA1100/PCMCIA for details.

 */

#ifndef _ASM_ARCH_PCMCIA

#define _ASM_ARCH_PCMCIA

/* Ideally, we'd support up to MAX_SOCK sockets, but the SA-1100 only

 * has support for two. This shows up in lots of hardwired ways, such

 * as the fact that MECR only has enough bits to configure two sockets.

 * Since it's so entrenched in the hardware, limiting the software

 * in this way doesn't seem too terrible.

 */

#define SA1100_PCMCIA_MAX_SOCK   (2)

struct pcmcia_init {

  void (*handler)(int irq, void *dev, struct pt_regs *regs);

};

struct pcmcia_state {

  unsigned detect: 1,

            ready: 1,

             bvd1: 1,

             bvd2: 1,

           wrprot: 1,

            vs_3v: 1,

            vs_Xv: 1;

};

struct pcmcia_state_array {

  unsigned int size;

  struct pcmcia_state *state;

};

struct pcmcia_configure {

  unsigned sock: 8,

            vcc: 8,

            vpp: 8,

         output: 1,

        speaker: 1,

          reset: 1,

            irq: 1;

};

struct pcmcia_irq_info {

  unsigned int sock;

  unsigned int irq;

};

struct pcmcia_low_level {

  int (*init)(struct pcmcia_init *);

  int (*shutdown)(void);

  int (*socket_state)(struct pcmcia_state_array *);

  int (*get_irq_info)(struct pcmcia_irq_info *);

  int (*configure_socket)(const struct pcmcia_configure *);

  /*

   * Enable card status IRQs on (re-)initialisation.  This can

   * be called at initialisation, power management event, or

   * pcmcia event.

   */

  int (*socket_init)(int sock);

  /*

   * Disable card status IRQs and PCMCIA bus on suspend.

   */

  int (*socket_suspend)(int sock);

};

extern struct pcmcia_low_level *pcmcia_low_level;

#endif