aboutsummaryrefslogtreecommitdiff
path: root/include/linux/cd1400.h
blob: 1dc3ab0523fdd6ab8778364158de22bde8991d2f (plain)
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
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
/*****************************************************************************/

/*
 *	cd1400.h  -- cd1400 UART hardware info.
 *
 *	Copyright (C) 1996-1998  Stallion Technologies
 *	Copyright (C) 1994-1996  Greg Ungerer.
 *
 *	This program is free software; you can redistribute it and/or modify
 *	it under the terms of the GNU General Public License as published by
 *	the Free Software Foundation; either version 2 of the License, or
 *	(at your option) any later version.
 *
 *	This program is distributed in the hope that it will be useful,
 *	but WITHOUT ANY WARRANTY; without even the implied warranty of
 *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *	GNU General Public License for more details.
 *
 *	You should have received a copy of the GNU General Public License
 *	along with this program; if not, write to the Free Software
 *	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

/*****************************************************************************/
#ifndef	_CD1400_H
#define	_CD1400_H
/*****************************************************************************/

/*
 *	Define the number of async ports per cd1400 uart chip.
 */
#define	CD1400_PORTS		4

/*
 *	Define the cd1400 uarts internal FIFO sizes.
 */
#define	CD1400_TXFIFOSIZE	12
#define	CD1400_RXFIFOSIZE	12

/*
 *	Local RX FIFO thresh hold level. Also define the RTS thresh hold
 *	based on the RX thresh hold.
 */
#define	FIFO_RXTHRESHOLD	6
#define	FIFO_RTSTHRESHOLD	7

/*****************************************************************************/

/*
 *	Define the cd1400 register addresses. These are all the valid
 *	registers with the cd1400. Some are global, some virtual, some
 *	per port.
 */
#define	GFRCR		0x40
#define	CAR		0x68
#define	GCR		0x4b
#define	SVRR		0x67
#define	RICR		0x44
#define	TICR		0x45
#define	MICR		0x46
#define	RIR		0x6b
#define	TIR		0x6a
#define	MIR		0x69
#define	PPR		0x7e

#define	RIVR		0x43
#define	TIVR		0x42
#define	MIVR		0x41
#define	TDR		0x63
#define	RDSR		0x62
#define	MISR		0x4c
#define	EOSRR		0x60

#define	LIVR		0x18
#define	CCR		0x05
#define	SRER		0x06
#define	COR1		0x08
#define	COR2		0x09
#define	COR3		0x0a
#define	COR4		0x1e
#define	COR5		0x1f
#define	CCSR		0x0b
#define	RDCR		0x0e
#define	SCHR1		0x1a
#define	SCHR2		0x1b
#define	SCHR3		0x1c
#define	SCHR4		0x1d
#define	SCRL		0x22
#define	SCRH		0x23
#define	LNC		0x24
#define	MCOR1		0x15
#define	MCOR2		0x16
#define	RTPR		0x21
#define	MSVR1		0x6c
#define	MSVR2		0x6d
#define	PSVR		0x6f
#define	RBPR		0x78
#define	RCOR		0x7c
#define	TBPR		0x72
#define	TCOR		0x76

/*****************************************************************************/

/*
 *	Define the set of baud rate clock divisors.
 */
#define	CD1400_CLK0	8
#define	CD1400_CLK1	32
#define	CD1400_CLK2	128
#define	CD1400_CLK3	512
#define	CD1400_CLK4	2048

#define	CD1400_NUMCLKS	5

/*****************************************************************************/

/*
 *	Define the clock pre-scalar value to be a 5 ms clock. This should be
 *	OK for now. It would probably be better to make it 10 ms, but we
 *	can't fit that divisor into 8 bits!
 */
#define	PPR_SCALAR	244

/*****************************************************************************/

/*
 *	Define values used to set character size options.
 */
#define	COR1_CHL5	0x00
#define	COR1_CHL6	0x01
#define	COR1_CHL7	0x02
#define	COR1_CHL8	0x03

/*
 *	Define values used to set the number of stop bits.
 */
#define	COR1_STOP1	0x00
#define	COR1_STOP15	0x04
#define	COR1_STOP2	0x08

/*
 *	Define values used to set the parity scheme in use.
 */
#define	COR1_PARNONE	0x00
#define	COR1_PARFORCE	0x20
#define	COR1_PARENB	0x40
#define	COR1_PARIGNORE	0x10

#define	COR1_PARODD	0x80
#define	COR1_PAREVEN	0x00

#define	COR2_IXM	0x80
#define	COR2_TXIBE	0x40
#define	COR2_ETC	0x20
#define	COR2_LLM	0x10
#define	COR2_RLM	0x08
#define	COR2_RTSAO	0x04
#define	COR2_CTSAE	0x02

#define	COR3_SCDRNG	0x80
#define	COR3_SCD34	0x40
#define	COR3_FCT	0x20
#define	COR3_SCD12	0x10

/*
 *	Define values used by COR4.
 */
#define	COR4_BRKINT	0x08
#define	COR4_IGNBRK	0x18

/*****************************************************************************/

/*
 *	Define the modem control register values.
 *	Note that the actual hardware is a little different to the conventional
 *	pin names on the cd1400.
 */
#define	MSVR1_DTR	0x01
#define	MSVR1_DSR	0x10
#define	MSVR1_RI	0x20
#define	MSVR1_CTS	0x40
#define	MSVR1_DCD	0x80

#define	MSVR2_RTS	0x02
#define	MSVR2_DSR	0x10
#define	MSVR2_RI	0x20
#define	MSVR2_CTS	0x40
#define	MSVR2_DCD	0x80

#define	MCOR1_DCD	0x80
#define	MCOR1_CTS	0x40
#define	MCOR1_RI	0x20
#define	MCOR1_DSR	0x10

#define	MCOR2_DCD	0x80
#define	MCOR2_CTS	0x40
#define	MCOR2_RI	0x20
#define	MCOR2_DSR	0x10

/*****************************************************************************/

/*
 *	Define the bits used with the service (interrupt) enable register.
 */
#define	SRER_NNDT	0x01
#define	SRER_TXEMPTY	0x02
#define	SRER_TXDATA	0x04
#define	SRER_RXDATA	0x10
#define	SRER_MODEM	0x80

/*****************************************************************************/

/*
 *	Define operational commands for the command register.
 */
#define	CCR_RESET	0x80
#define	CCR_CORCHANGE	0x4e
#define	CCR_SENDCH	0x20
#define	CCR_CHANCTRL	0x10

#define	CCR_TXENABLE	(CCR_CHANCTRL | 0x08)
#define	CCR_TXDISABLE	(CCR_CHANCTRL | 0x04)
#define	CCR_RXENABLE	(CCR_CHANCTRL | 0x02)
#define	CCR_RXDISABLE	(CCR_CHANCTRL | 0x01)

#define	CCR_SENDSCHR1	(CCR_SENDCH | 0x01)
#define	CCR_SENDSCHR2	(CCR_SENDCH | 0x02)
#define	CCR_SENDSCHR3	(CCR_SENDCH | 0x03)
#define	CCR_SENDSCHR4	(CCR_SENDCH | 0x04)

#define	CCR_RESETCHAN	(CCR_RESET | 0x00)
#define	CCR_RESETFULL	(CCR_RESET | 0x01)
#define	CCR_TXFLUSHFIFO	(CCR_RESET | 0x02)

#define	CCR_MAXWAIT	10000

/*****************************************************************************/

/*
 *	Define the valid acknowledgement types (for hw ack cycle).
 */
#define	ACK_TYPMASK	0x07
#define	ACK_TYPTX	0x02
#define	ACK_TYPMDM	0x01
#define	ACK_TYPRXGOOD	0x03
#define	ACK_TYPRXBAD	0x07

#define	SVRR_RX		0x01
#define	SVRR_TX		0x02
#define	SVRR_MDM	0x04

#define	ST_OVERRUN	0x01
#define	ST_FRAMING	0x02
#define	ST_PARITY	0x04
#define	ST_BREAK	0x08
#define	ST_SCHAR1	0x10
#define	ST_SCHAR2	0x20
#define	ST_SCHAR3	0x30
#define	ST_SCHAR4	0x40
#define	ST_RANGE	0x70
#define	ST_SCHARMASK	0x70
#define	ST_TIMEOUT	0x80

#define	MISR_DCD	0x80
#define	MISR_CTS	0x40
#define	MISR_RI		0x20
#define	MISR_DSR	0x10

/*****************************************************************************/

/*
 *	Defines for the CCSR status register.
 */
#define	CCSR_RXENABLED	0x80
#define	CCSR_RXFLOWON	0x40
#define	CCSR_RXFLOWOFF	0x20
#define	CCSR_TXENABLED	0x08
#define	CCSR_TXFLOWON	0x04
#define	CCSR_TXFLOWOFF	0x02

/*****************************************************************************/

/*
 *	Define the embedded commands.
 */
#define	ETC_CMD		0x00
#define	ETC_STARTBREAK	0x81
#define	ETC_DELAY	0x82
#define	ETC_STOPBREAK	0x83

/*****************************************************************************/
#endif