Merge tag 'block-5.11-2021-01-24' of git://git.kernel.dk/linux-block
[linux-block.git] / drivers / tty / serial / sunsab.h
CommitLineData
b2441318 1/* SPDX-License-Identifier: GPL-2.0 */
1da177e4
LT
2/* sunsab.h: Register Definitions for the Siemens SAB82532 DUSCC
3 *
4 * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be)
5 */
6
7#ifndef _SUNSAB_H
8#define _SUNSAB_H
9
10struct sab82532_async_rd_regs {
11 u8 rfifo[0x20]; /* Receive FIFO */
12 u8 star; /* Status Register */
13 u8 __pad1;
14 u8 mode; /* Mode Register */
15 u8 timr; /* Timer Register */
16 u8 xon; /* XON Character */
17 u8 xoff; /* XOFF Character */
18 u8 tcr; /* Termination Character Register */
19 u8 dafo; /* Data Format */
20 u8 rfc; /* RFIFO Control Register */
21 u8 __pad2;
22 u8 rbcl; /* Receive Byte Count Low */
23 u8 rbch; /* Receive Byte Count High */
24 u8 ccr0; /* Channel Configuration Register 0 */
25 u8 ccr1; /* Channel Configuration Register 1 */
26 u8 ccr2; /* Channel Configuration Register 2 */
27 u8 ccr3; /* Channel Configuration Register 3 */
28 u8 __pad3[4];
29 u8 vstr; /* Version Status Register */
30 u8 __pad4[3];
31 u8 gis; /* Global Interrupt Status */
32 u8 ipc; /* Interrupt Port Configuration */
33 u8 isr0; /* Interrupt Status 0 */
34 u8 isr1; /* Interrupt Status 1 */
35 u8 pvr; /* Port Value Register */
36 u8 pis; /* Port Interrupt Status */
37 u8 pcr; /* Port Configuration Register */
38 u8 ccr4; /* Channel Configuration Register 4 */
39};
40
41struct sab82532_async_wr_regs {
42 u8 xfifo[0x20]; /* Transmit FIFO */
43 u8 cmdr; /* Command Register */
44 u8 __pad1;
45 u8 mode;
46 u8 timr;
47 u8 xon;
48 u8 xoff;
49 u8 tcr;
50 u8 dafo;
51 u8 rfc;
52 u8 __pad2;
53 u8 xbcl; /* Transmit Byte Count Low */
54 u8 xbch; /* Transmit Byte Count High */
55 u8 ccr0;
56 u8 ccr1;
57 u8 ccr2;
58 u8 ccr3;
59 u8 tsax; /* Time-Slot Assignment Reg. Transmit */
60 u8 tsar; /* Time-Slot Assignment Reg. Receive */
61 u8 xccr; /* Transmit Channel Capacity Register */
62 u8 rccr; /* Receive Channel Capacity Register */
63 u8 bgr; /* Baud Rate Generator Register */
64 u8 tic; /* Transmit Immediate Character */
65 u8 mxn; /* Mask XON Character */
66 u8 mxf; /* Mask XOFF Character */
67 u8 iva; /* Interrupt Vector Address */
68 u8 ipc;
69 u8 imr0; /* Interrupt Mask Register 0 */
70 u8 imr1; /* Interrupt Mask Register 1 */
71 u8 pvr;
72 u8 pim; /* Port Interrupt Mask */
73 u8 pcr;
74 u8 ccr4;
75};
76
77struct sab82532_async_rw_regs { /* Read/Write registers */
78 u8 __pad1[0x20];
79 u8 __pad2;
80 u8 __pad3;
81 u8 mode;
82 u8 timr;
83 u8 xon;
84 u8 xoff;
85 u8 tcr;
86 u8 dafo;
87 u8 rfc;
88 u8 __pad4;
89 u8 __pad5;
90 u8 __pad6;
91 u8 ccr0;
92 u8 ccr1;
93 u8 ccr2;
94 u8 ccr3;
95 u8 __pad7;
96 u8 __pad8;
97 u8 __pad9;
98 u8 __pad10;
99 u8 __pad11;
100 u8 __pad12;
101 u8 __pad13;
102 u8 __pad14;
103 u8 __pad15;
104 u8 ipc;
105 u8 __pad16;
106 u8 __pad17;
107 u8 pvr;
108 u8 __pad18;
109 u8 pcr;
110 u8 ccr4;
111};
112
113union sab82532_async_regs {
114 __volatile__ struct sab82532_async_rd_regs r;
115 __volatile__ struct sab82532_async_wr_regs w;
116 __volatile__ struct sab82532_async_rw_regs rw;
117};
118
119union sab82532_irq_status {
120 unsigned short stat;
121 struct {
122 unsigned char isr0;
123 unsigned char isr1;
124 } sreg;
125};
126
127/* irqflags bits */
128#define SAB82532_ALLS 0x00000001
129#define SAB82532_XPR 0x00000002
e4fdee8e 130#define SAB82532_REGS_PENDING 0x00000004
1da177e4
LT
131
132/* RFIFO Status Byte */
133#define SAB82532_RSTAT_PE 0x80
134#define SAB82532_RSTAT_FE 0x40
135#define SAB82532_RSTAT_PARITY 0x01
136
137/* Status Register (STAR) */
138#define SAB82532_STAR_XDOV 0x80
139#define SAB82532_STAR_XFW 0x40
140#define SAB82532_STAR_RFNE 0x20
141#define SAB82532_STAR_FCS 0x10
142#define SAB82532_STAR_TEC 0x08
143#define SAB82532_STAR_CEC 0x04
144#define SAB82532_STAR_CTS 0x02
145
146/* Command Register (CMDR) */
147#define SAB82532_CMDR_RMC 0x80
148#define SAB82532_CMDR_RRES 0x40
149#define SAB82532_CMDR_RFRD 0x20
150#define SAB82532_CMDR_STI 0x10
151#define SAB82532_CMDR_XF 0x08
152#define SAB82532_CMDR_XRES 0x01
153
154/* Mode Register (MODE) */
155#define SAB82532_MODE_FRTS 0x40
156#define SAB82532_MODE_FCTS 0x20
157#define SAB82532_MODE_FLON 0x10
158#define SAB82532_MODE_RAC 0x08
159#define SAB82532_MODE_RTS 0x04
160#define SAB82532_MODE_TRS 0x02
161#define SAB82532_MODE_TLP 0x01
162
163/* Timer Register (TIMR) */
164#define SAB82532_TIMR_CNT_MASK 0xe0
165#define SAB82532_TIMR_VALUE_MASK 0x1f
166
167/* Data Format (DAFO) */
168#define SAB82532_DAFO_XBRK 0x40
169#define SAB82532_DAFO_STOP 0x20
170#define SAB82532_DAFO_PAR_SPACE 0x00
171#define SAB82532_DAFO_PAR_ODD 0x08
172#define SAB82532_DAFO_PAR_EVEN 0x10
173#define SAB82532_DAFO_PAR_MARK 0x18
174#define SAB82532_DAFO_PARE 0x04
175#define SAB82532_DAFO_CHL8 0x00
176#define SAB82532_DAFO_CHL7 0x01
177#define SAB82532_DAFO_CHL6 0x02
178#define SAB82532_DAFO_CHL5 0x03
179
180/* RFIFO Control Register (RFC) */
181#define SAB82532_RFC_DPS 0x40
182#define SAB82532_RFC_DXS 0x20
183#define SAB82532_RFC_RFDF 0x10
184#define SAB82532_RFC_RFTH_1 0x00
185#define SAB82532_RFC_RFTH_4 0x04
186#define SAB82532_RFC_RFTH_16 0x08
187#define SAB82532_RFC_RFTH_32 0x0c
188#define SAB82532_RFC_TCDE 0x01
189
190/* Received Byte Count High (RBCH) */
191#define SAB82532_RBCH_DMA 0x80
192#define SAB82532_RBCH_CAS 0x20
193
194/* Transmit Byte Count High (XBCH) */
195#define SAB82532_XBCH_DMA 0x80
196#define SAB82532_XBCH_CAS 0x20
197#define SAB82532_XBCH_XC 0x10
198
199/* Channel Configuration Register 0 (CCR0) */
200#define SAB82532_CCR0_PU 0x80
201#define SAB82532_CCR0_MCE 0x40
202#define SAB82532_CCR0_SC_NRZ 0x00
203#define SAB82532_CCR0_SC_NRZI 0x08
204#define SAB82532_CCR0_SC_FM0 0x10
205#define SAB82532_CCR0_SC_FM1 0x14
206#define SAB82532_CCR0_SC_MANCH 0x18
207#define SAB82532_CCR0_SM_HDLC 0x00
208#define SAB82532_CCR0_SM_SDLC_LOOP 0x01
209#define SAB82532_CCR0_SM_BISYNC 0x02
210#define SAB82532_CCR0_SM_ASYNC 0x03
211
212/* Channel Configuration Register 1 (CCR1) */
213#define SAB82532_CCR1_ODS 0x10
214#define SAB82532_CCR1_BCR 0x08
215#define SAB82532_CCR1_CM_MASK 0x07
216
217/* Channel Configuration Register 2 (CCR2) */
218#define SAB82532_CCR2_SOC1 0x80
219#define SAB82532_CCR2_SOC0 0x40
220#define SAB82532_CCR2_BR9 0x80
221#define SAB82532_CCR2_BR8 0x40
222#define SAB82532_CCR2_BDF 0x20
223#define SAB82532_CCR2_SSEL 0x10
224#define SAB82532_CCR2_XCS0 0x20
225#define SAB82532_CCR2_RCS0 0x10
226#define SAB82532_CCR2_TOE 0x08
227#define SAB82532_CCR2_RWX 0x04
228#define SAB82532_CCR2_DIV 0x01
229
230/* Channel Configuration Register 3 (CCR3) */
231#define SAB82532_CCR3_PSD 0x01
232
233/* Time Slot Assignment Register Transmit (TSAX) */
234#define SAB82532_TSAX_TSNX_MASK 0xfc
235#define SAB82532_TSAX_XCS2 0x02 /* see also CCR2 */
236#define SAB82532_TSAX_XCS1 0x01
237
238/* Time Slot Assignment Register Receive (TSAR) */
239#define SAB82532_TSAR_TSNR_MASK 0xfc
240#define SAB82532_TSAR_RCS2 0x02 /* see also CCR2 */
241#define SAB82532_TSAR_RCS1 0x01
242
243/* Version Status Register (VSTR) */
244#define SAB82532_VSTR_CD 0x80
245#define SAB82532_VSTR_DPLA 0x40
246#define SAB82532_VSTR_VN_MASK 0x0f
247#define SAB82532_VSTR_VN_1 0x00
248#define SAB82532_VSTR_VN_2 0x01
249#define SAB82532_VSTR_VN_3_2 0x02
250
251/* Global Interrupt Status Register (GIS) */
252#define SAB82532_GIS_PI 0x80
253#define SAB82532_GIS_ISA1 0x08
254#define SAB82532_GIS_ISA0 0x04
255#define SAB82532_GIS_ISB1 0x02
256#define SAB82532_GIS_ISB0 0x01
257
258/* Interrupt Vector Address (IVA) */
259#define SAB82532_IVA_MASK 0xf1
260
261/* Interrupt Port Configuration (IPC) */
262#define SAB82532_IPC_VIS 0x80
263#define SAB82532_IPC_SLA1 0x10
264#define SAB82532_IPC_SLA0 0x08
265#define SAB82532_IPC_CASM 0x04
266#define SAB82532_IPC_IC_OPEN_DRAIN 0x00
267#define SAB82532_IPC_IC_ACT_LOW 0x01
268#define SAB82532_IPC_IC_ACT_HIGH 0x03
269
270/* Interrupt Status Register 0 (ISR0) */
271#define SAB82532_ISR0_TCD 0x80
272#define SAB82532_ISR0_TIME 0x40
273#define SAB82532_ISR0_PERR 0x20
274#define SAB82532_ISR0_FERR 0x10
275#define SAB82532_ISR0_PLLA 0x08
276#define SAB82532_ISR0_CDSC 0x04
277#define SAB82532_ISR0_RFO 0x02
278#define SAB82532_ISR0_RPF 0x01
279
280/* Interrupt Status Register 1 (ISR1) */
281#define SAB82532_ISR1_BRK 0x80
282#define SAB82532_ISR1_BRKT 0x40
283#define SAB82532_ISR1_ALLS 0x20
284#define SAB82532_ISR1_XOFF 0x10
285#define SAB82532_ISR1_TIN 0x08
286#define SAB82532_ISR1_CSC 0x04
287#define SAB82532_ISR1_XON 0x02
288#define SAB82532_ISR1_XPR 0x01
289
290/* Interrupt Mask Register 0 (IMR0) */
291#define SAB82532_IMR0_TCD 0x80
292#define SAB82532_IMR0_TIME 0x40
293#define SAB82532_IMR0_PERR 0x20
294#define SAB82532_IMR0_FERR 0x10
295#define SAB82532_IMR0_PLLA 0x08
296#define SAB82532_IMR0_CDSC 0x04
297#define SAB82532_IMR0_RFO 0x02
298#define SAB82532_IMR0_RPF 0x01
299
300/* Interrupt Mask Register 1 (IMR1) */
301#define SAB82532_IMR1_BRK 0x80
302#define SAB82532_IMR1_BRKT 0x40
303#define SAB82532_IMR1_ALLS 0x20
304#define SAB82532_IMR1_XOFF 0x10
305#define SAB82532_IMR1_TIN 0x08
306#define SAB82532_IMR1_CSC 0x04
307#define SAB82532_IMR1_XON 0x02
308#define SAB82532_IMR1_XPR 0x01
309
310/* Port Interrupt Status Register (PIS) */
311#define SAB82532_PIS_SYNC_B 0x08
312#define SAB82532_PIS_DTR_B 0x04
313#define SAB82532_PIS_DTR_A 0x02
314#define SAB82532_PIS_SYNC_A 0x01
315
316/* Channel Configuration Register 4 (CCR4) */
317#define SAB82532_CCR4_MCK4 0x80
318#define SAB82532_CCR4_EBRG 0x40
319#define SAB82532_CCR4_TST1 0x20
320#define SAB82532_CCR4_ICD 0x10
321
322
323#endif /* !(_SUNSAB_H) */