source:
rtems/c/src/libchip/serial/mc68681.h
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94365d9
Last change on this file since 94365d9 was 94365d9, checked in by Joel Sherrill <joel.sherrill@…>, on 09/04/03 at 18:53:19 | |
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1 | /* |
2 | * |
3 | * COPYRIGHT (c) 1989-1999. |
4 | * On-Line Applications Research Corporation (OAR). |
5 | * |
6 | * The license and distribution terms for this file may be |
7 | * found in the file LICENSE in this distribution or at |
8 | * http://www.rtems.com/license/LICENSE. |
9 | * |
10 | * $Id$ |
11 | */ |
12 | |
13 | #ifndef _MC68681_H_ |
14 | #define _MC68681_H_ |
15 | |
16 | #ifdef __cplusplus |
17 | extern "C" { |
18 | #endif |
19 | |
20 | /* |
21 | * These are just used in the interface between this driver and |
22 | * the read/write register routines when accessing the first |
23 | * control port. |
24 | */ |
25 | |
26 | #define MC68681_STATUS 1 |
27 | #define MC68681_RX_BUFFER 3 |
28 | |
29 | #define MC68681_MODE 0 |
30 | #define MC68681_CLOCK_SELECT 1 |
31 | #define MC68681_COMMAND 2 |
32 | #define MC68681_TX_BUFFER 3 |
33 | |
34 | /* |
35 | * Data Port bit map configuration |
36 | * |
37 | * D0 : Baud Rate Set Selection |
38 | * D1 - D2 : Extended Baud Rate Setting |
39 | */ |
40 | |
41 | #define MC68681_DATA_BAUD_RATE_SET_1 0 /* ACR[7] = 0 */ |
42 | #define MC68681_DATA_BAUD_RATE_SET_2 1 /* ACR[7] = 1 */ |
43 | |
44 | #define MC68681_XBRG_IGNORED (0 << 1) |
45 | #define MC68681_XBRG_ENABLED (1 << 1) |
46 | #define MC68681_XBRG_DISABLED (2 << 1) |
47 | #define MC68681_XBRG_MASK (3 << 1) |
48 | |
49 | /* |
50 | * Custom baud rate table information |
51 | */ |
52 | |
53 | typedef unsigned char mc68681_baud_t; |
54 | typedef mc68681_baud_t mc68681_baud_table_t[RTEMS_TERMIOS_NUMBER_BAUD_RATES]; |
55 | |
56 | #define MC68681_BAUD_NOT_VALID 0xFF |
57 | |
58 | extern mc68681_baud_t |
59 | mc68681_baud_rate_table[4][RTEMS_TERMIOS_NUMBER_BAUD_RATES]; |
60 | |
61 | |
62 | /* |
63 | * Driver function table |
64 | */ |
65 | |
66 | extern console_fns mc68681_fns; |
67 | extern console_fns mc68681_fns_polled; |
68 | |
69 | /* |
70 | * Default register access routines |
71 | */ |
72 | |
73 | unsigned8 mc68681_get_register( /* registers are at 1 byte boundaries */ |
74 | unsigned32 ulCtrlPort, /* and accessed as bytes */ |
75 | unsigned8 ucRegNum |
76 | ); |
77 | |
78 | void mc68681_set_register( |
79 | unsigned32 ulCtrlPort, |
80 | unsigned8 ucRegNum, |
81 | unsigned8 ucData |
82 | ); |
83 | |
84 | unsigned8 mc68681_get_register_2( /* registers are at 2 byte boundaries */ |
85 | unsigned32 ulCtrlPort, /* and accessed as bytes */ |
86 | unsigned8 ucRegNum |
87 | ); |
88 | |
89 | void mc68681_set_register_2( |
90 | unsigned32 ulCtrlPort, |
91 | unsigned8 ucRegNum, |
92 | unsigned8 ucData |
93 | ); |
94 | |
95 | unsigned8 mc68681_get_register_4( /* registers are at 4 byte boundaries */ |
96 | unsigned32 ulCtrlPort, /* and accessed as bytes */ |
97 | unsigned8 ucRegNum |
98 | ); |
99 | |
100 | void mc68681_set_register_4( |
101 | unsigned32 ulCtrlPort, |
102 | unsigned8 ucRegNum, |
103 | unsigned8 ucData |
104 | ); |
105 | |
106 | unsigned8 mc68681_get_register_8( /* registers are at 8 byte boundaries */ |
107 | unsigned32 ulCtrlPort, /* and accessed as bytes */ |
108 | unsigned8 ucRegNum |
109 | ); |
110 | |
111 | void mc68681_set_register_8( |
112 | unsigned32 ulCtrlPort, |
113 | unsigned8 ucRegNum, |
114 | unsigned8 ucData |
115 | ); |
116 | |
117 | |
118 | #ifdef __cplusplus |
119 | } |
120 | #endif |
121 | |
122 | #endif /* _MC68681_H_ */ |
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