arch/arm/mach-rpc/ecard.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  *  ecard.h
   4  *
   5  *  Copyright 2007 Russell King
   6  */
   7
   8 /* Definitions internal to ecard.c - for it's use only!!
   9  *
  10  * External expansion card header as read from the card
  11  */
  12 struct ex_ecid {
  13         unsigned char   r_irq:1;
  14         unsigned char   r_zero:1;
  15         unsigned char   r_fiq:1;
  16         unsigned char   r_id:4;
  17         unsigned char   r_a:1;
  18
  19         unsigned char   r_cd:1;
  20         unsigned char   r_is:1;
  21         unsigned char   r_w:2;
  22         unsigned char   r_r1:4;
  23
  24         unsigned char   r_r2:8;
  25
  26         unsigned char   r_prod[2];
  27
  28         unsigned char   r_manu[2];
  29
  30         unsigned char   r_country;
  31
  32         unsigned char   r_fiqmask;
  33         unsigned char   r_fiqoff[3];
  34
  35         unsigned char   r_irqmask;
  36         unsigned char   r_irqoff[3];
  37 };
  38
  39 /*
  40  * Chunk directory entry as read from the card
  41  */
  42 struct ex_chunk_dir {
  43         unsigned char r_id;
  44         unsigned char r_len[3];
  45         unsigned long r_start;
  46         union {
  47                 char string[256];
  48                 char data[1];
  49         } d;
  50 #define c_id(x)         ((x)->r_id)
  51 #define c_len(x)        ((x)->r_len[0]|((x)->r_len[1]<<8)|((x)->r_len[2]<<16))
  52 #define c_start(x)      ((x)->r_start)
  53 };
  54
  55 typedef enum ecard_type {               /* Cards address space          */
  56         ECARD_IOC,
  57         ECARD_MEMC,
  58         ECARD_EASI
  59 } card_type_t;
  60
  61 typedef enum {                          /* Speed for ECARD_IOC space    */
  62         ECARD_SLOW       = 0,
  63         ECARD_MEDIUM     = 1,
  64         ECARD_FAST       = 2,
  65         ECARD_SYNC       = 3
  66 } card_speed_t;