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 */
12struct 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 */
42struct 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
55typedef enum ecard_type {		/* Cards address space		*/
56	ECARD_IOC,
57	ECARD_MEMC,
58	ECARD_EASI
59} card_type_t;
60
61typedef 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;
67