1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
|
/* $NetBSD: am9513reg.h,v 1.4 2008/04/28 20:23:49 martin Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matthew Fredette.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _AM9513REG_H
#define _AM9513REG_H
/*
* Driver support for the Am9513 timer chip. See
* http://www.amd.com/products/cpg/techdocs/misc/03402/03402.html
* for data sheets.
*/
struct am9513 {
u_int16_t am9513_clk_data; /* data register */
u_int16_t am9513_clk_cmd; /* command register */
};
#define AM9513_CLK_DATA 0
#define AM9513_CLK_CMD 2
/*
* All of the below macros are for use in bitfields in the Counter
* Mode (CM) Register.
*/
/* Gating control, CM[13:15]: */
/*
* Legend: A[HL][LE]?
* | | `-> L = level, E = edge
* | `-> H = high, L = low
* `-> active
*
* P1 = plus one, M1 = minus one
*/
#define AM9513_CM_GATING_NONE (0x0 << 13)
#define AM9513_CM_GATING_AH_TCN_M1 (0x1 << 13)
#define AM9513_CM_GATING_AHL_GATEN_P1 (0x2 << 13)
#define AM9513_CM_GATING_AHL_GATEN_M1 (0x3 << 13)
#define AM9513_CM_GATING_AHL_GATEN (0x4 << 13)
#define AM9513_CM_GATING_ALL_GATEN (0x5 << 13)
#define AM9513_CM_GATING_AHE_GATEN (0x6 << 13)
#define AM9513_CM_GATING_ALE_GATEN (0x7 << 13)
/* Source edge, CM[12]: */
#define AM9513_CM_SOURCE_EDGE_RISING (0 << 12)
#define AM9513_CM_SOURCE_EDGE_FALLING (1 << 12)
/* Count sources, CM[8:11]: */
#define AM9513_CM_SOURCE_TCN1 (0x0 << 8)
#define AM9513_CM_SOURCE_SRC1 (0x1 << 8)
#define AM9513_CM_SOURCE_SRC2 (0x2 << 8)
#define AM9513_CM_SOURCE_SRC3 (0x3 << 8)
#define AM9513_CM_SOURCE_SRC4 (0x4 << 8)
#define AM9513_CM_SOURCE_SRC5 (0x5 << 8)
#define AM9513_CM_SOURCE_GATE1 (0x6 << 8)
#define AM9513_CM_SOURCE_GATE2 (0x7 << 8)
#define AM9513_CM_SOURCE_GATE3 (0x8 << 8)
#define AM9513_CM_SOURCE_GATE4 (0x9 << 8)
#define AM9513_CM_SOURCE_GATE5 (0xA << 8)
#define AM9513_CM_SOURCE_F1 (0xB << 8)
#define AM9513_CM_SOURCE_F2 (0xC << 8)
#define AM9513_CM_SOURCE_F3 (0xD << 8)
#define AM9513_CM_SOURCE_F4 (0xE << 8)
#define AM9513_CM_SOURCE_F5 (0xF << 8)
/* Count control, CM[7]: */
#define AM9513_CM_SPECIAL_GATE_ENA (1 << 7)
#define AM9513_CM_SPECIAL_GATE_DIS (0 << 7)
/* Counter reload source, CM[6]: */
#define AM9513_CM_RELOAD_SOURCE_LOAD (0 << 6)
#define AM9513_CM_RELOAD_SOURCE_LOAD_OR_HOLD (1 << 6)
/* Counter repeat control, CM[5]: */
#define AM9513_CM_REPEAT_DIS (0 << 5)
#define AM9513_CM_REPEAT_ENA (1 << 5)
/* Counter type, CM[4]: */
#define AM9513_CM_TYPE_BIN (0 << 4)
#define AM9513_CM_TYPE_BCD (1 << 4)
/* Counter direction, CM[3]: */
#define AM9513_CM_DIR_DOWN (0 << 3)
#define AM9513_CM_DIR_UP (1 << 3)
/* Output control, CM[0:2]: */
#define AM9513_CM_OUTPUT_OL (0x0 << 0) /* inactive, output low */
#define AM9513_CM_OUTPUT_AHTCP (0x1 << 0) /* active high terminal count pulse */
#define AM9513_CM_OUTPUT_TC_TOGGLED (0x2 << 0) /* TC toggled */
#define AM9513_CM_OUTPUT_OHI (0x4 << 0) /* inactive, output high impedance */
#define AM9513_CM_OUTPUT_ALTCP (0x5 << 0) /* active low terminal count pulse */
/* The modes are various combinations of the above: */
/* Mode A: */
#define AM9513_CM_MODE_A (AM9513_CM_GATING_NONE \
| AM9513_CM_SPECIAL_GATE_DIS \
| AM9513_CM_RELOAD_SOURCE_LOAD \
| AM9513_CM_REPEAT_DIS)
/*
* Mode B is just like mode A, except you OR in the
* AM9513_CM_GATING_ value for the *level* you want:
*/
#define AM9513_CM_MODE_B AM9513_CM_MODE_A
/*
* Mode C is just like mode A, except you OR in the
* AM9513_CM_GATING_ value for the *edge* you want:
*/
#define AM9513_CM_MODE_C AM9513_CM_MODE_A
/* Mode D: */
#define AM9513_CM_MODE_D (AM9513_CM_GATING_NONE \
| AM9513_CM_SPECIAL_GATE_DIS \
| AM9513_CM_RELOAD_SOURCE_LOAD \
| AM9513_CM_REPEAT_ENA)
/*
* Mode E is just like mode D, except you OR in the
* AM9513_CM_GATING_ value for the *level* you want:
*/
#define AM9513_CM_MODE_E AM9513_CM_MODE_D
/*
* Mode F is just like mode D, except you OR in the
* AM9513_CM_GATING_ value for the *edge* you want:
*/
#define AM9513_CM_MODE_F AM9513_CM_MODE_D
/* Mode G: */
#define AM9513_CM_MODE_G (AM9513_CM_GATING_NONE \
| AM9513_CM_SPECIAL_GATE_DIS \
| AM9513_CM_RELOAD_SOURCE_LOAD_OR_HOLD \
| AM9513_CM_REPEAT_DIS)
/*
* Mode H is just like mode G, except you OR in the
* AM9513_CM_GATING_ value for the *level* you want:
*/
#define AM9513_CM_MODE_H AM9513_CM_MODE_G
/*
* Mode I is just like mode G, except you OR in the
* AM9513_CM_GATING_ value for the *edge* you want:
*/
#define AM9513_CM_MODE_I AM9513_CM_MODE_G
/* Mode J: */
#define AM9513_CM_MODE_J (AM9513_CM_GATING_NONE \
| AM9513_CM_SPECIAL_GATE_DIS \
| AM9513_CM_RELOAD_SOURCE_LOAD_OR_HOLD \
| AM9513_CM_REPEAT_ENA)
/*
* Mode K is just like mode J, except you OR in the
* AM9513_CM_GATING_ value for the *level* you want:
*/
#define AM9513_CM_MODE_K AM9513_CM_MODE_J
/*
* Mode L is just like mode J, except you OR in the
* AM9513_CM_GATING_ value for the *edge* you want:
*/
#define AM9513_CM_MODE_L AM9513_CM_MODE_J
/* Mode N: */
#define AM9513_CM_MODE_N (AM9513_CM_GATING_NONE \
| AM9513_CM_SPECIAL_GATE_ENA \
| AM9513_CM_RELOAD_SOURCE_LOAD \
| AM9513_CM_REPEAT_DIS)
/*
* Mode O is just like mode N, except you OR in the
* AM9513_CM_GATING_ value for the *edge* you want:
*/
#define AM9513_CM_MODE_O AM9513_CM_MODE_N
/* Mode Q; OR in the AM9513_CM_GATING_ value for the *level* you want: */
#define AM9513_CM_MODE_Q (AM9513_CM_GATING_NONE \
| AM9513_CM_SPECIAL_GATE_ENA \
| AM9513_CM_RELOAD_SOURCE_LOAD \
| AM9513_CM_REPEAT_ENA)
/*
* Mode R is just like mode N, except you OR in the
* AM9513_CM_GATING_ value for the *edge* you want:
*/
#define AM9513_CM_MODE_R AM9513_CM_MODE_Q
/* Mode S: */
#define AM9513_CM_MODE_S (AM9513_CM_GATING_NONE \
| AM9513_CM_SPECIAL_GATE_ENA \
| AM9513_CM_RELOAD_SOURCE_LOAD_OR_HOLD \
| AM9513_CM_REPEAT_DIS)
/* Mode V: */
#define AM9513_CM_MODE_V (AM9513_CM_GATING_NONE \
| AM9513_CM_SPECIAL_GATE_ENA \
| AM9513_CM_RELOAD_SOURCE_LOAD_OR_HOLD \
| AM9513_CM_REPEAT_ENA)
/* Given an AM9513_CM_SOURCE_F? value, return the divisor: */
#define AM9513_CM_SOURCE_Fn_DIV(func) (1 << (((func) - AM9513_CM_SOURCE_F1) >> 6))
/*
* Given a basic frequency and an AM9513_CM_SOURCE_F? value, returns
* the number of clock ticks for a certain frequency:
*/
#define AM9513_TICKS(basic, func, hz) (((basic) / AM9513_CM_SOURCE_Fn_DIV(func)) / (hz))
/* These are the timer numbers: */
#define AM9513_TIMER1 (1)
#define AM9513_TIMER2 (2)
#define AM9513_TIMER3 (3)
#define AM9513_TIMER4 (4)
#define AM9513_TIMER5 (5)
/*
* This macro is used to compose a bitmask of times for those
* commands that take a bitmask:
*/
#define AM9513_TIMER_BIT(timer) (1 << ((timer) - 1))
/* When in 16-bit mode, the high 8 bits of every command must be ones: */
#define _AM9513_CMD(x) (0xFF00 | (x))
/* Commands: */
#define AM9513_CMD_LOAD_MODE(timer) _AM9513_CMD(0x00 | (timer))
#define AM9513_CMD_LOAD_LOAD(timer) _AM9513_CMD(0x08 | (timer))
#define AM9513_CMD_LOAD_HOLD(timer) _AM9513_CMD(0x10 | (timer))
#define AM9513_CMD_ARM(timers) _AM9513_CMD(0x20 | (timers))
#define AM9513_CMD_LOAD(timers) _AM9513_CMD(0x40 | (timers))
#define AM9513_CMD_LOAD_ARM(timers) _AM9513_CMD(0x60 | (timers))
#define AM9513_CMD_SAVE(timers) _AM9513_CMD(0xA0 | (timers))
#define AM9513_CMD_DISARM(timers) _AM9513_CMD(0xC0 | (timers))
#define AM9513_CMD_CLEAR_OUTPUT(timer) _AM9513_CMD(0xE0 | (timer))
#define AM9513_CMD_RESET _AM9513_CMD(0xFF)
/* These are mode register values for various uses */
#define AM9513_TICK_MODE (AM9513_F2+0x22) /* F2 + Operating mode D */
#define AM9513_UART_MODE (AM9513_F1+0x22) /* F1 + Operating mode D */
#define AM9513_FAST_LO_MODE (AM9513_F3+0x28) /* F3, repeat, count up */
#define AM9513_FAST_HI_MODE (0x0028) /* TC of LO, repeat, count up */
#endif /* _AM9513REG_H */
|