pcmcia.h

内核linux2.4.20,可跟rtlinux3.2打补丁 组成实时linux系统,编译内核

/*
 * linux/include/asm/arch/pcmcia.h
 *
 * Copyright (C) 2000 John G Dorsey <[e-mail]>
 *
 * 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)


#ifndef __ASSEMBLY__

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;
};

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 *);
};

extern struct pcmcia_low_level *pcmcia_low_level;

#endif  /* __ASSEMBLY__ */

#endif