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sunsab.h
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1 /* sunsab.h: Register Definitions for the Siemens SAB82532 DUSCC
2  *
3  * Copyright (C) 1997 Eddie C. Dost ([email protected])
4  */
5 
6 #ifndef _SUNSAB_H
7 #define _SUNSAB_H
8 
9 struct sab82532_async_rd_regs {
10  u8 rfifo[0x20]; /* Receive FIFO */
11  u8 star; /* Status Register */
12  u8 __pad1;
13  u8 mode; /* Mode Register */
14  u8 timr; /* Timer Register */
15  u8 xon; /* XON Character */
16  u8 xoff; /* XOFF Character */
17  u8 tcr; /* Termination Character Register */
18  u8 dafo; /* Data Format */
19  u8 rfc; /* RFIFO Control Register */
20  u8 __pad2;
21  u8 rbcl; /* Receive Byte Count Low */
22  u8 rbch; /* Receive Byte Count High */
23  u8 ccr0; /* Channel Configuration Register 0 */
24  u8 ccr1; /* Channel Configuration Register 1 */
25  u8 ccr2; /* Channel Configuration Register 2 */
26  u8 ccr3; /* Channel Configuration Register 3 */
27  u8 __pad3[4];
28  u8 vstr; /* Version Status Register */
29  u8 __pad4[3];
30  u8 gis; /* Global Interrupt Status */
31  u8 ipc; /* Interrupt Port Configuration */
32  u8 isr0; /* Interrupt Status 0 */
33  u8 isr1; /* Interrupt Status 1 */
34  u8 pvr; /* Port Value Register */
35  u8 pis; /* Port Interrupt Status */
36  u8 pcr; /* Port Configuration Register */
37  u8 ccr4; /* Channel Configuration Register 4 */
38 };
39 
40 struct sab82532_async_wr_regs {
41  u8 xfifo[0x20]; /* Transmit FIFO */
42  u8 cmdr; /* Command Register */
43  u8 __pad1;
44  u8 mode;
45  u8 timr;
46  u8 xon;
47  u8 xoff;
48  u8 tcr;
49  u8 dafo;
50  u8 rfc;
51  u8 __pad2;
52  u8 xbcl; /* Transmit Byte Count Low */
53  u8 xbch; /* Transmit Byte Count High */
54  u8 ccr0;
55  u8 ccr1;
56  u8 ccr2;
57  u8 ccr3;
58  u8 tsax; /* Time-Slot Assignment Reg. Transmit */
59  u8 tsar; /* Time-Slot Assignment Reg. Receive */
60  u8 xccr; /* Transmit Channel Capacity Register */
61  u8 rccr; /* Receive Channel Capacity Register */
62  u8 bgr; /* Baud Rate Generator Register */
63  u8 tic; /* Transmit Immediate Character */
64  u8 mxn; /* Mask XON Character */
65  u8 mxf; /* Mask XOFF Character */
66  u8 iva; /* Interrupt Vector Address */
67  u8 ipc;
68  u8 imr0; /* Interrupt Mask Register 0 */
69  u8 imr1; /* Interrupt Mask Register 1 */
70  u8 pvr;
71  u8 pim; /* Port Interrupt Mask */
72  u8 pcr;
73  u8 ccr4;
74 };
75 
76 struct sab82532_async_rw_regs { /* Read/Write registers */
77  u8 __pad1[0x20];
78  u8 __pad2;
79  u8 __pad3;
80  u8 mode;
81  u8 timr;
82  u8 xon;
83  u8 xoff;
84  u8 tcr;
85  u8 dafo;
86  u8 rfc;
87  u8 __pad4;
88  u8 __pad5;
89  u8 __pad6;
90  u8 ccr0;
91  u8 ccr1;
92  u8 ccr2;
93  u8 ccr3;
94  u8 __pad7;
95  u8 __pad8;
96  u8 __pad9;
97  u8 __pad10;
98  u8 __pad11;
99  u8 __pad12;
100  u8 __pad13;
101  u8 __pad14;
102  u8 __pad15;
103  u8 ipc;
104  u8 __pad16;
105  u8 __pad17;
106  u8 pvr;
107  u8 __pad18;
108  u8 pcr;
109  u8 ccr4;
110 };
111 
112 union sab82532_async_regs {
113  __volatile__ struct sab82532_async_rd_regs r;
114  __volatile__ struct sab82532_async_wr_regs w;
115  __volatile__ struct sab82532_async_rw_regs rw;
116 };
117 
118 union sab82532_irq_status {
119  unsigned short stat;
120  struct {
121  unsigned char isr0;
122  unsigned char isr1;
123  } sreg;
124 };
125 
126 /* irqflags bits */
127 #define SAB82532_ALLS 0x00000001
128 #define SAB82532_XPR 0x00000002
129 #define SAB82532_REGS_PENDING 0x00000004
130 
131 /* RFIFO Status Byte */
132 #define SAB82532_RSTAT_PE 0x80
133 #define SAB82532_RSTAT_FE 0x40
134 #define SAB82532_RSTAT_PARITY 0x01
135 
136 /* Status Register (STAR) */
137 #define SAB82532_STAR_XDOV 0x80
138 #define SAB82532_STAR_XFW 0x40
139 #define SAB82532_STAR_RFNE 0x20
140 #define SAB82532_STAR_FCS 0x10
141 #define SAB82532_STAR_TEC 0x08
142 #define SAB82532_STAR_CEC 0x04
143 #define SAB82532_STAR_CTS 0x02
144 
145 /* Command Register (CMDR) */
146 #define SAB82532_CMDR_RMC 0x80
147 #define SAB82532_CMDR_RRES 0x40
148 #define SAB82532_CMDR_RFRD 0x20
149 #define SAB82532_CMDR_STI 0x10
150 #define SAB82532_CMDR_XF 0x08
151 #define SAB82532_CMDR_XRES 0x01
152 
153 /* Mode Register (MODE) */
154 #define SAB82532_MODE_FRTS 0x40
155 #define SAB82532_MODE_FCTS 0x20
156 #define SAB82532_MODE_FLON 0x10
157 #define SAB82532_MODE_RAC 0x08
158 #define SAB82532_MODE_RTS 0x04
159 #define SAB82532_MODE_TRS 0x02
160 #define SAB82532_MODE_TLP 0x01
161 
162 /* Timer Register (TIMR) */
163 #define SAB82532_TIMR_CNT_MASK 0xe0
164 #define SAB82532_TIMR_VALUE_MASK 0x1f
165 
166 /* Data Format (DAFO) */
167 #define SAB82532_DAFO_XBRK 0x40
168 #define SAB82532_DAFO_STOP 0x20
169 #define SAB82532_DAFO_PAR_SPACE 0x00
170 #define SAB82532_DAFO_PAR_ODD 0x08
171 #define SAB82532_DAFO_PAR_EVEN 0x10
172 #define SAB82532_DAFO_PAR_MARK 0x18
173 #define SAB82532_DAFO_PARE 0x04
174 #define SAB82532_DAFO_CHL8 0x00
175 #define SAB82532_DAFO_CHL7 0x01
176 #define SAB82532_DAFO_CHL6 0x02
177 #define SAB82532_DAFO_CHL5 0x03
178 
179 /* RFIFO Control Register (RFC) */
180 #define SAB82532_RFC_DPS 0x40
181 #define SAB82532_RFC_DXS 0x20
182 #define SAB82532_RFC_RFDF 0x10
183 #define SAB82532_RFC_RFTH_1 0x00
184 #define SAB82532_RFC_RFTH_4 0x04
185 #define SAB82532_RFC_RFTH_16 0x08
186 #define SAB82532_RFC_RFTH_32 0x0c
187 #define SAB82532_RFC_TCDE 0x01
188 
189 /* Received Byte Count High (RBCH) */
190 #define SAB82532_RBCH_DMA 0x80
191 #define SAB82532_RBCH_CAS 0x20
192 
193 /* Transmit Byte Count High (XBCH) */
194 #define SAB82532_XBCH_DMA 0x80
195 #define SAB82532_XBCH_CAS 0x20
196 #define SAB82532_XBCH_XC 0x10
197 
198 /* Channel Configuration Register 0 (CCR0) */
199 #define SAB82532_CCR0_PU 0x80
200 #define SAB82532_CCR0_MCE 0x40
201 #define SAB82532_CCR0_SC_NRZ 0x00
202 #define SAB82532_CCR0_SC_NRZI 0x08
203 #define SAB82532_CCR0_SC_FM0 0x10
204 #define SAB82532_CCR0_SC_FM1 0x14
205 #define SAB82532_CCR0_SC_MANCH 0x18
206 #define SAB82532_CCR0_SM_HDLC 0x00
207 #define SAB82532_CCR0_SM_SDLC_LOOP 0x01
208 #define SAB82532_CCR0_SM_BISYNC 0x02
209 #define SAB82532_CCR0_SM_ASYNC 0x03
210 
211 /* Channel Configuration Register 1 (CCR1) */
212 #define SAB82532_CCR1_ODS 0x10
213 #define SAB82532_CCR1_BCR 0x08
214 #define SAB82532_CCR1_CM_MASK 0x07
215 
216 /* Channel Configuration Register 2 (CCR2) */
217 #define SAB82532_CCR2_SOC1 0x80
218 #define SAB82532_CCR2_SOC0 0x40
219 #define SAB82532_CCR2_BR9 0x80
220 #define SAB82532_CCR2_BR8 0x40
221 #define SAB82532_CCR2_BDF 0x20
222 #define SAB82532_CCR2_SSEL 0x10
223 #define SAB82532_CCR2_XCS0 0x20
224 #define SAB82532_CCR2_RCS0 0x10
225 #define SAB82532_CCR2_TOE 0x08
226 #define SAB82532_CCR2_RWX 0x04
227 #define SAB82532_CCR2_DIV 0x01
228 
229 /* Channel Configuration Register 3 (CCR3) */
230 #define SAB82532_CCR3_PSD 0x01
231 
232 /* Time Slot Assignment Register Transmit (TSAX) */
233 #define SAB82532_TSAX_TSNX_MASK 0xfc
234 #define SAB82532_TSAX_XCS2 0x02 /* see also CCR2 */
235 #define SAB82532_TSAX_XCS1 0x01
236 
237 /* Time Slot Assignment Register Receive (TSAR) */
238 #define SAB82532_TSAR_TSNR_MASK 0xfc
239 #define SAB82532_TSAR_RCS2 0x02 /* see also CCR2 */
240 #define SAB82532_TSAR_RCS1 0x01
241 
242 /* Version Status Register (VSTR) */
243 #define SAB82532_VSTR_CD 0x80
244 #define SAB82532_VSTR_DPLA 0x40
245 #define SAB82532_VSTR_VN_MASK 0x0f
246 #define SAB82532_VSTR_VN_1 0x00
247 #define SAB82532_VSTR_VN_2 0x01
248 #define SAB82532_VSTR_VN_3_2 0x02
249 
250 /* Global Interrupt Status Register (GIS) */
251 #define SAB82532_GIS_PI 0x80
252 #define SAB82532_GIS_ISA1 0x08
253 #define SAB82532_GIS_ISA0 0x04
254 #define SAB82532_GIS_ISB1 0x02
255 #define SAB82532_GIS_ISB0 0x01
256 
257 /* Interrupt Vector Address (IVA) */
258 #define SAB82532_IVA_MASK 0xf1
259 
260 /* Interrupt Port Configuration (IPC) */
261 #define SAB82532_IPC_VIS 0x80
262 #define SAB82532_IPC_SLA1 0x10
263 #define SAB82532_IPC_SLA0 0x08
264 #define SAB82532_IPC_CASM 0x04
265 #define SAB82532_IPC_IC_OPEN_DRAIN 0x00
266 #define SAB82532_IPC_IC_ACT_LOW 0x01
267 #define SAB82532_IPC_IC_ACT_HIGH 0x03
268 
269 /* Interrupt Status Register 0 (ISR0) */
270 #define SAB82532_ISR0_TCD 0x80
271 #define SAB82532_ISR0_TIME 0x40
272 #define SAB82532_ISR0_PERR 0x20
273 #define SAB82532_ISR0_FERR 0x10
274 #define SAB82532_ISR0_PLLA 0x08
275 #define SAB82532_ISR0_CDSC 0x04
276 #define SAB82532_ISR0_RFO 0x02
277 #define SAB82532_ISR0_RPF 0x01
278 
279 /* Interrupt Status Register 1 (ISR1) */
280 #define SAB82532_ISR1_BRK 0x80
281 #define SAB82532_ISR1_BRKT 0x40
282 #define SAB82532_ISR1_ALLS 0x20
283 #define SAB82532_ISR1_XOFF 0x10
284 #define SAB82532_ISR1_TIN 0x08
285 #define SAB82532_ISR1_CSC 0x04
286 #define SAB82532_ISR1_XON 0x02
287 #define SAB82532_ISR1_XPR 0x01
288 
289 /* Interrupt Mask Register 0 (IMR0) */
290 #define SAB82532_IMR0_TCD 0x80
291 #define SAB82532_IMR0_TIME 0x40
292 #define SAB82532_IMR0_PERR 0x20
293 #define SAB82532_IMR0_FERR 0x10
294 #define SAB82532_IMR0_PLLA 0x08
295 #define SAB82532_IMR0_CDSC 0x04
296 #define SAB82532_IMR0_RFO 0x02
297 #define SAB82532_IMR0_RPF 0x01
298 
299 /* Interrupt Mask Register 1 (IMR1) */
300 #define SAB82532_IMR1_BRK 0x80
301 #define SAB82532_IMR1_BRKT 0x40
302 #define SAB82532_IMR1_ALLS 0x20
303 #define SAB82532_IMR1_XOFF 0x10
304 #define SAB82532_IMR1_TIN 0x08
305 #define SAB82532_IMR1_CSC 0x04
306 #define SAB82532_IMR1_XON 0x02
307 #define SAB82532_IMR1_XPR 0x01
308 
309 /* Port Interrupt Status Register (PIS) */
310 #define SAB82532_PIS_SYNC_B 0x08
311 #define SAB82532_PIS_DTR_B 0x04
312 #define SAB82532_PIS_DTR_A 0x02
313 #define SAB82532_PIS_SYNC_A 0x01
314 
315 /* Channel Configuration Register 4 (CCR4) */
316 #define SAB82532_CCR4_MCK4 0x80
317 #define SAB82532_CCR4_EBRG 0x40
318 #define SAB82532_CCR4_TST1 0x20
319 #define SAB82532_CCR4_ICD 0x10
320 
321 
322 #endif /* !(_SUNSAB_H) */
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