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
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
|
/*
* SBE 2T3E3 synchronous serial card driver for Linux
*
* Copyright (C) 2009-2010 Krzysztof Halasa <khc@pm.waw.pl>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License
* as published by the Free Software Foundation.
*
* This code is based on a driver written by SBE Inc.
*/
#include <linux/types.h>
#include "2t3e3.h"
#include "ctrl.h"
void t3e3_set_frame_type(struct channel *sc, u32 mode)
{
if (sc->p.frame_type == mode)
return;
if (sc->r.flags & SBE_2T3E3_FLAG_NETWORK_UP) {
dev_err(&sc->pdev->dev, "SBE 2T3E3: changing frame type during active connection\n");
return;
}
exar7300_set_frame_type(sc, mode);
exar7250_set_frame_type(sc, mode);
cpld_set_frame_type(sc, mode);
sc->p.frame_type = mode;
}
void t3e3_set_loopback(struct channel *sc, u32 mode)
{
u32 tx, rx;
if (sc->p.loopback == mode)
return;
tx = sc->p.transmitter_on;
rx = sc->p.receiver_on;
if (tx == SBE_2T3E3_ON)
dc_transmitter_onoff(sc, SBE_2T3E3_OFF);
if (rx == SBE_2T3E3_ON)
dc_receiver_onoff(sc, SBE_2T3E3_OFF);
/* stop current loopback if any exists */
switch (sc->p.loopback) {
case SBE_2T3E3_LOOPBACK_NONE:
break;
case SBE_2T3E3_LOOPBACK_ETHERNET:
dc_set_loopback(sc, SBE_2T3E3_21143_VAL_LOOPBACK_OFF);
break;
case SBE_2T3E3_LOOPBACK_FRAMER:
exar7250_set_loopback(sc, SBE_2T3E3_FRAMER_VAL_LOOPBACK_OFF);
break;
case SBE_2T3E3_LOOPBACK_LIU_DIGITAL:
case SBE_2T3E3_LOOPBACK_LIU_ANALOG:
case SBE_2T3E3_LOOPBACK_LIU_REMOTE:
exar7300_set_loopback(sc, SBE_2T3E3_LIU_VAL_LOOPBACK_OFF);
break;
default:
return;
}
switch (mode) {
case SBE_2T3E3_LOOPBACK_NONE:
break;
case SBE_2T3E3_LOOPBACK_ETHERNET:
dc_set_loopback(sc, SBE_2T3E3_21143_VAL_LOOPBACK_INTERNAL);
break;
case SBE_2T3E3_LOOPBACK_FRAMER:
exar7250_set_loopback(sc, SBE_2T3E3_FRAMER_VAL_LOOPBACK_ON);
break;
case SBE_2T3E3_LOOPBACK_LIU_DIGITAL:
exar7300_set_loopback(sc, SBE_2T3E3_LIU_VAL_LOOPBACK_DIGITAL);
break;
case SBE_2T3E3_LOOPBACK_LIU_ANALOG:
exar7300_set_loopback(sc, SBE_2T3E3_LIU_VAL_LOOPBACK_ANALOG);
break;
case SBE_2T3E3_LOOPBACK_LIU_REMOTE:
exar7300_set_loopback(sc, SBE_2T3E3_LIU_VAL_LOOPBACK_REMOTE);
break;
default:
return;
}
sc->p.loopback = mode;
if (tx == SBE_2T3E3_ON)
dc_transmitter_onoff(sc, SBE_2T3E3_ON);
if (rx == SBE_2T3E3_ON)
dc_receiver_onoff(sc, SBE_2T3E3_ON);
}
void t3e3_reg_read(struct channel *sc, u32 *reg, u32 *val)
{
u32 i;
*val = 0;
switch (reg[0]) {
case SBE_2T3E3_CHIP_21143:
if (!(reg[1] & 7))
*val = dc_read(sc->addr, reg[1] / 8);
break;
case SBE_2T3E3_CHIP_CPLD:
for (i = 0; i < SBE_2T3E3_CPLD_REG_MAX; i++)
if (cpld_reg_map[i][sc->h.slot] == reg[1]) {
*val = cpld_read(sc, i);
break;
}
break;
case SBE_2T3E3_CHIP_FRAMER:
for (i = 0; i < SBE_2T3E3_FRAMER_REG_MAX; i++)
if (t3e3_framer_reg_map[i] == reg[1]) {
*val = exar7250_read(sc, i);
break;
}
break;
case SBE_2T3E3_CHIP_LIU:
for (i = 0; i < SBE_2T3E3_LIU_REG_MAX; i++)
if (t3e3_liu_reg_map[i] == reg[1]) {
*val = exar7300_read(sc, i);
break;
}
break;
default:
break;
}
}
void t3e3_reg_write(struct channel *sc, u32 *reg)
{
u32 i;
switch (reg[0]) {
case SBE_2T3E3_CHIP_21143:
dc_write(sc->addr, reg[1], reg[2]);
break;
case SBE_2T3E3_CHIP_CPLD:
for (i = 0; i < SBE_2T3E3_CPLD_REG_MAX; i++)
if (cpld_reg_map[i][sc->h.slot] == reg[1]) {
cpld_write(sc, i, reg[2]);
break;
}
break;
case SBE_2T3E3_CHIP_FRAMER:
for (i = 0; i < SBE_2T3E3_FRAMER_REG_MAX; i++)
if (t3e3_framer_reg_map[i] == reg[1]) {
exar7250_write(sc, i, reg[2]);
break;
}
break;
case SBE_2T3E3_CHIP_LIU:
for (i = 0; i < SBE_2T3E3_LIU_REG_MAX; i++)
if (t3e3_liu_reg_map[i] == reg[1]) {
exar7300_write(sc, i, reg[2]);
break;
}
break;
}
}
void t3e3_port_get(struct channel *sc, t3e3_param_t *param)
{
memcpy(param, &(sc->p), sizeof(t3e3_param_t));
}
void t3e3_port_set(struct channel *sc, t3e3_param_t *param)
{
if (param->frame_mode != 0xff)
cpld_set_frame_mode(sc, param->frame_mode);
if (param->fractional_mode != 0xff)
cpld_set_fractional_mode(sc, param->fractional_mode,
param->bandwidth_start,
param->bandwidth_stop);
if (param->pad_count != 0xff)
cpld_set_pad_count(sc, param->pad_count);
if (param->crc != 0xff)
cpld_set_crc(sc, param->crc);
if (param->receiver_on != 0xff)
dc_receiver_onoff(sc, param->receiver_on);
if (param->transmitter_on != 0xff)
dc_transmitter_onoff(sc, param->transmitter_on);
if (param->frame_type != 0xff)
t3e3_set_frame_type(sc, param->frame_type);
if (param->panel != 0xff)
cpld_select_panel(sc, param->panel);
if (param->line_build_out != 0xff)
exar7300_line_build_out_onoff(sc, param->line_build_out);
if (param->receive_equalization != 0xff)
exar7300_receive_equalization_onoff(sc, param->receive_equalization);
if (param->transmit_all_ones != 0xff)
exar7300_transmit_all_ones_onoff(sc, param->transmit_all_ones);
if (param->loopback != 0xff)
t3e3_set_loopback(sc, param->loopback);
if (param->clock_source != 0xff)
cpld_set_clock(sc, param->clock_source);
if (param->scrambler != 0xff)
cpld_set_scrambler(sc, param->scrambler);
}
void t3e3_port_get_stats(struct channel *sc,
t3e3_stats_t *stats)
{
u32 result;
sc->s.LOC = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_IO_CONTROL)
& SBE_2T3E3_FRAMER_VAL_LOSS_OF_CLOCK_STATUS ? 1 : 0;
switch (sc->p.frame_type) {
case SBE_2T3E3_FRAME_TYPE_E3_G751:
case SBE_2T3E3_FRAME_TYPE_E3_G832:
result = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_RX_CONFIGURATION_STATUS_2);
sc->s.LOF = result & SBE_2T3E3_FRAMER_VAL_E3_RX_LOF ? 1 : 0;
sc->s.OOF = result & SBE_2T3E3_FRAMER_VAL_E3_RX_OOF ? 1 : 0;
cpld_LOS_update(sc);
sc->s.AIS = result & SBE_2T3E3_FRAMER_VAL_E3_RX_AIS ? 1 : 0;
sc->s.FERF = result & SBE_2T3E3_FRAMER_VAL_E3_RX_FERF ? 1 : 0;
break;
case SBE_2T3E3_FRAME_TYPE_T3_CBIT:
case SBE_2T3E3_FRAME_TYPE_T3_M13:
result = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_CONFIGURATION_STATUS);
sc->s.AIS = result & SBE_2T3E3_FRAMER_VAL_T3_RX_AIS ? 1 : 0;
cpld_LOS_update(sc);
sc->s.IDLE = result & SBE_2T3E3_FRAMER_VAL_T3_RX_IDLE ? 1 : 0;
sc->s.OOF = result & SBE_2T3E3_FRAMER_VAL_T3_RX_OOF ? 1 : 0;
result = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_STATUS);
sc->s.FERF = result & SBE_2T3E3_FRAMER_VAL_T3_RX_FERF ? 1 : 0;
sc->s.AIC = result & SBE_2T3E3_FRAMER_VAL_T3_RX_AIC ? 1 : 0;
sc->s.FEBE_code = result & SBE_2T3E3_FRAMER_VAL_T3_RX_FEBE;
sc->s.FEAC = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_FEAC);
break;
default:
break;
}
result = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_LCV_EVENT_COUNT_MSB) << 8;
result += exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_HOLDING_REGISTER);
sc->s.LCV += result;
result = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_FRAMING_BIT_ERROR_EVENT_COUNT_MSB) << 8;
result += exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_HOLDING_REGISTER);
sc->s.FRAMING_BIT += result;
result = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_PARITY_ERROR_EVENT_COUNT_MSB) << 8;
result += exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_HOLDING_REGISTER);
sc->s.PARITY_ERROR += result;
result = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_FEBE_EVENT_COUNT_MSB) << 8;
result += exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_HOLDING_REGISTER);
sc->s.FEBE_count += result;
result = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_CP_BIT_ERROR_EVENT_COUNT_MSB) << 8;
result += exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_HOLDING_REGISTER);
sc->s.CP_BIT += result;
memcpy(stats, &(sc->s), sizeof(t3e3_stats_t));
}
void t3e3_port_del_stats(struct channel *sc)
{
memset(&(sc->s), 0, sizeof(t3e3_stats_t));
}
void t3e3_if_config(struct channel *sc, u32 cmd, char *set,
t3e3_resp_t *ret, int *rlen)
{
t3e3_param_t *param = (t3e3_param_t *)set;
u32 *data = (u32 *)set;
/* turn off all interrupt */
/* cpld_stop_intr(sc); */
switch (cmd) {
case SBE_2T3E3_PORT_GET:
t3e3_port_get(sc, &(ret->u.param));
*rlen = sizeof(ret->u.param);
break;
case SBE_2T3E3_PORT_SET:
t3e3_port_set(sc, param);
*rlen = 0;
break;
case SBE_2T3E3_PORT_GET_STATS:
t3e3_port_get_stats(sc, &(ret->u.stats));
*rlen = sizeof(ret->u.stats);
break;
case SBE_2T3E3_PORT_DEL_STATS:
t3e3_port_del_stats(sc);
*rlen = 0;
break;
case SBE_2T3E3_PORT_READ_REGS:
t3e3_reg_read(sc, data, &(ret->u.data));
*rlen = sizeof(ret->u.data);
break;
case SBE_2T3E3_PORT_WRITE_REGS:
t3e3_reg_write(sc, data);
*rlen = 0;
break;
case SBE_2T3E3_LOG_LEVEL:
*rlen = 0;
break;
default:
*rlen = 0;
break;
}
}
void t3e3_sc_init(struct channel *sc)
{
memset(sc, 0, sizeof(*sc));
sc->p.frame_mode = SBE_2T3E3_FRAME_MODE_HDLC;
sc->p.fractional_mode = SBE_2T3E3_FRACTIONAL_MODE_NONE;
sc->p.crc = SBE_2T3E3_CRC_32;
sc->p.receiver_on = SBE_2T3E3_OFF;
sc->p.transmitter_on = SBE_2T3E3_OFF;
sc->p.frame_type = SBE_2T3E3_FRAME_TYPE_T3_CBIT;
sc->p.panel = SBE_2T3E3_PANEL_FRONT;
sc->p.line_build_out = SBE_2T3E3_OFF;
sc->p.receive_equalization = SBE_2T3E3_OFF;
sc->p.transmit_all_ones = SBE_2T3E3_OFF;
sc->p.loopback = SBE_2T3E3_LOOPBACK_NONE;
sc->p.clock_source = SBE_2T3E3_TIMING_LOCAL;
sc->p.scrambler = SBE_2T3E3_SCRAMBLER_OFF;
sc->p.pad_count = SBE_2T3E3_PAD_COUNT_1;
}
|
