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; |
67 | |