ecard.h

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/*
 *  ecard.h
 *
 *  Copyright 2007 Russell King
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

/* Definitions internal to ecard.c - for it's use only!!
 *
 * External expansion card header as read from the card
 */
struct ex_ecid {
    unsigned char   r_irq:1;
    unsigned char   r_zero:1;
    unsigned char   r_fiq:1;
    unsigned char   r_id:4;
    unsigned char   r_a:1;

    unsigned char   r_cd:1;
    unsigned char   r_is:1;
    unsigned char   r_w:2;
    unsigned char   r_r1:4;

    unsigned char   r_r2:8;

    unsigned char   r_prod[2];

    unsigned char   r_manu[2];

    unsigned char   r_country;

    unsigned char   r_fiqmask;
    unsigned char   r_fiqoff[3];

    unsigned char   r_irqmask;
    unsigned char   r_irqoff[3];
};

/*
 * Chunk directory entry as read from the card
 */
struct ex_chunk_dir {
    unsigned char r_id;
    unsigned char r_len[3];
    unsigned long r_start;
    union {
        char string[256];
        char data[1];
    } d;
#define c_id(x)     ((x)->r_id)
#define c_len(x)    ((x)->r_len[0]|((x)->r_len[1]<<8)|((x)->r_len[2]<<16))
#define c_start(x)  ((x)->r_start)
};

typedef enum ecard_type {       /* Cards address space      */
    ECARD_IOC,
    ECARD_MEMC,
    ECARD_EASI
} card_type_t;

typedef enum {              /* Speed for ECARD_IOC space    */
    ECARD_SLOW   = 0,
    ECARD_MEDIUM     = 1,
    ECARD_FAST   = 2,
    ECARD_SYNC   = 3
} card_speed_t;