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debugfs: Modified default dir of debugfs for debugging UHCI.
[linux/fpc-iii.git] / drivers / media / dvb / firewire / firedtv-avc.c
blob32526f103b596290232de5ea652b363074935f21
1 /*
2 * FireDTV driver (formerly known as FireSAT)
3 *
4 * Copyright (C) 2004 Andreas Monitzer <andy@monitzer.com>
5 * Copyright (C) 2008 Ben Backx <ben@bbackx.com>
6 * Copyright (C) 2008 Henrik Kurelid <henrik@kurelid.se>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 */
13
14 #include <linux/bug.h>
15 #include <linux/crc32.h>
16 #include <linux/delay.h>
17 #include <linux/device.h>
18 #include <linux/jiffies.h>
19 #include <linux/kernel.h>
20 #include <linux/moduleparam.h>
21 #include <linux/mutex.h>
22 #include <linux/string.h>
23 #include <linux/stringify.h>
24 #include <linux/wait.h>
25 #include <linux/workqueue.h>
26
27 #include "firedtv.h"
28
29 #define FCP_COMMAND_REGISTER 0xfffff0000b00ULL
30
31 #define AVC_CTYPE_CONTROL 0x0
32 #define AVC_CTYPE_STATUS 0x1
33 #define AVC_CTYPE_NOTIFY 0x3
34
35 #define AVC_RESPONSE_ACCEPTED 0x9
36 #define AVC_RESPONSE_STABLE 0xc
37 #define AVC_RESPONSE_CHANGED 0xd
38 #define AVC_RESPONSE_INTERIM 0xf
39
40 #define AVC_SUBUNIT_TYPE_TUNER (0x05 << 3)
41 #define AVC_SUBUNIT_TYPE_UNIT (0x1f << 3)
42
43 #define AVC_OPCODE_VENDOR 0x00
44 #define AVC_OPCODE_READ_DESCRIPTOR 0x09
45 #define AVC_OPCODE_DSIT 0xc8
46 #define AVC_OPCODE_DSD 0xcb
47
48 #define DESCRIPTOR_TUNER_STATUS 0x80
49 #define DESCRIPTOR_SUBUNIT_IDENTIFIER 0x00
50
51 #define SFE_VENDOR_DE_COMPANYID_0 0x00 /* OUI of Digital Everywhere */
52 #define SFE_VENDOR_DE_COMPANYID_1 0x12
53 #define SFE_VENDOR_DE_COMPANYID_2 0x87
54
55 #define SFE_VENDOR_OPCODE_REGISTER_REMOTE_CONTROL 0x0a
56 #define SFE_VENDOR_OPCODE_LNB_CONTROL 0x52
57 #define SFE_VENDOR_OPCODE_TUNE_QPSK 0x58 /* for DVB-S */
58
59 #define SFE_VENDOR_OPCODE_GET_FIRMWARE_VERSION 0x00
60 #define SFE_VENDOR_OPCODE_HOST2CA 0x56
61 #define SFE_VENDOR_OPCODE_CA2HOST 0x57
62 #define SFE_VENDOR_OPCODE_CISTATUS 0x59
63 #define SFE_VENDOR_OPCODE_TUNE_QPSK2 0x60 /* for DVB-S2 */
64
65 #define SFE_VENDOR_TAG_CA_RESET 0x00
66 #define SFE_VENDOR_TAG_CA_APPLICATION_INFO 0x01
67 #define SFE_VENDOR_TAG_CA_PMT 0x02
68 #define SFE_VENDOR_TAG_CA_DATE_TIME 0x04
69 #define SFE_VENDOR_TAG_CA_MMI 0x05
70 #define SFE_VENDOR_TAG_CA_ENTER_MENU 0x07
71
72 #define EN50221_LIST_MANAGEMENT_ONLY 0x03
73 #define EN50221_TAG_APP_INFO 0x9f8021
74 #define EN50221_TAG_CA_INFO 0x9f8031
75
76 struct avc_command_frame {
77 int length;
78 u8 ctype;
79 u8 subunit;
80 u8 opcode;
81 u8 operand[509];
82 };
83
84 struct avc_response_frame {
85 int length;
86 u8 response;
87 u8 subunit;
88 u8 opcode;
89 u8 operand[509];
90 };
91
92 #define AVC_DEBUG_FCP_SUBACTIONS 1
93 #define AVC_DEBUG_FCP_PAYLOADS 2
94
95 static int avc_debug;
96 module_param_named(debug, avc_debug, int, 0644);
97 MODULE_PARM_DESC(debug, "Verbose logging (default = 0"
98 ", FCP subactions = " __stringify(AVC_DEBUG_FCP_SUBACTIONS)
99 ", FCP payloads = " __stringify(AVC_DEBUG_FCP_PAYLOADS)
100 ", or all = -1)");
101
102 static const char *debug_fcp_ctype(unsigned int ctype)
103 {
104 static const char *ctypes[] = {
105 [0x0] = "CONTROL", [0x1] = "STATUS",
106 [0x2] = "SPECIFIC INQUIRY", [0x3] = "NOTIFY",
107 [0x4] = "GENERAL INQUIRY", [0x8] = "NOT IMPLEMENTED",
108 [0x9] = "ACCEPTED", [0xa] = "REJECTED",
109 [0xb] = "IN TRANSITION", [0xc] = "IMPLEMENTED/STABLE",
110 [0xd] = "CHANGED", [0xf] = "INTERIM",
111 };
112 const char *ret = ctype < ARRAY_SIZE(ctypes) ? ctypes[ctype] : NULL;
113
114 return ret ? ret : "?";
115 }
116
117 static const char *debug_fcp_opcode(unsigned int opcode,
118 const u8 *data, int length)
119 {
120 switch (opcode) {
121 case AVC_OPCODE_VENDOR: break;
122 case AVC_OPCODE_READ_DESCRIPTOR: return "ReadDescriptor";
123 case AVC_OPCODE_DSIT: return "DirectSelectInfo.Type";
124 case AVC_OPCODE_DSD: return "DirectSelectData";
125 default: return "?";
126 }
127
128 if (length < 7 ||
129 data[3] != SFE_VENDOR_DE_COMPANYID_0 ||
130 data[4] != SFE_VENDOR_DE_COMPANYID_1 ||
131 data[5] != SFE_VENDOR_DE_COMPANYID_2)
132 return "Vendor";
133
134 switch (data[6]) {
135 case SFE_VENDOR_OPCODE_REGISTER_REMOTE_CONTROL: return "RegisterRC";
136 case SFE_VENDOR_OPCODE_LNB_CONTROL: return "LNBControl";
137 case SFE_VENDOR_OPCODE_TUNE_QPSK: return "TuneQPSK";
138 case SFE_VENDOR_OPCODE_TUNE_QPSK2: return "TuneQPSK2";
139 case SFE_VENDOR_OPCODE_HOST2CA: return "Host2CA";
140 case SFE_VENDOR_OPCODE_CA2HOST: return "CA2Host";
141 }
142 return "Vendor";
143 }
144
145 static void debug_fcp(const u8 *data, int length)
146 {
147 unsigned int subunit_type, subunit_id, op;
148 const char *prefix = data[0] > 7 ? "FCP <- " : "FCP -> ";
149
150 if (avc_debug & AVC_DEBUG_FCP_SUBACTIONS) {
151 subunit_type = data[1] >> 3;
152 subunit_id = data[1] & 7;
153 op = subunit_type == 0x1e || subunit_id == 5 ? ~0 : data[2];
154 printk(KERN_INFO "%ssu=%x.%x l=%d: %-8s - %s\n",
155 prefix, subunit_type, subunit_id, length,
156 debug_fcp_ctype(data[0]),
157 debug_fcp_opcode(op, data, length));
158 }
159
160 if (avc_debug & AVC_DEBUG_FCP_PAYLOADS)
161 print_hex_dump(KERN_INFO, prefix, DUMP_PREFIX_NONE, 16, 1,
162 data, length, false);
163 }
164
165 static int __avc_write(struct firedtv *fdtv,
166 const struct avc_command_frame *c, struct avc_response_frame *r)
167 {
168 int err, retry;
169
170 if (r)
171 fdtv->avc_reply_received = false;
172
173 for (retry = 0; retry < 6; retry++) {
174 if (unlikely(avc_debug))
175 debug_fcp(&c->ctype, c->length);
176
177 err = fdtv->backend->write(fdtv, FCP_COMMAND_REGISTER,
178 (void *)&c->ctype, c->length);
179 if (err) {
180 fdtv->avc_reply_received = true;
181 dev_err(fdtv->device, "FCP command write failed\n");
182 return err;
183 }
184
185 if (!r)
186 return 0;
187
188 /*
189 * AV/C specs say that answers should be sent within 150 ms.
190 * Time out after 200 ms.
191 */
192 if (wait_event_timeout(fdtv->avc_wait,
193 fdtv->avc_reply_received,
194 msecs_to_jiffies(200)) != 0) {
195 r->length = fdtv->response_length;
196 memcpy(&r->response, fdtv->response, r->length);
197
198 return 0;
199 }
200 }
201 dev_err(fdtv->device, "FCP response timed out\n");
202 return -ETIMEDOUT;
203 }
204
205 static int avc_write(struct firedtv *fdtv,
206 const struct avc_command_frame *c, struct avc_response_frame *r)
207 {
208 int ret;
209
210 if (mutex_lock_interruptible(&fdtv->avc_mutex))
211 return -EINTR;
212
213 ret = __avc_write(fdtv, c, r);
214
215 mutex_unlock(&fdtv->avc_mutex);
216 return ret;
217 }
218
219 int avc_recv(struct firedtv *fdtv, void *data, size_t length)
220 {
221 struct avc_response_frame *r =
222 data - offsetof(struct avc_response_frame, response);
223
224 if (unlikely(avc_debug))
225 debug_fcp(data, length);
226
227 if (length >= 8 &&
228 r->operand[0] == SFE_VENDOR_DE_COMPANYID_0 &&
229 r->operand[1] == SFE_VENDOR_DE_COMPANYID_1 &&
230 r->operand[2] == SFE_VENDOR_DE_COMPANYID_2 &&
231 r->operand[3] == SFE_VENDOR_OPCODE_REGISTER_REMOTE_CONTROL) {
232 if (r->response == AVC_RESPONSE_CHANGED) {
233 fdtv_handle_rc(fdtv,
234 r->operand[4] << 8 | r->operand[5]);
235 schedule_work(&fdtv->remote_ctrl_work);
236 } else if (r->response != AVC_RESPONSE_INTERIM) {
237 dev_info(fdtv->device,
238 "remote control result = %d\n", r->response);
239 }
240 return 0;
241 }
242
243 if (fdtv->avc_reply_received) {
244 dev_err(fdtv->device, "out-of-order AVC response, ignored\n");
245 return -EIO;
246 }
247
248 memcpy(fdtv->response, data, length);
249 fdtv->response_length = length;
250
251 fdtv->avc_reply_received = true;
252 wake_up(&fdtv->avc_wait);
253
254 return 0;
255 }
256
257 /*
258 * tuning command for setting the relative LNB frequency
259 * (not supported by the AVC standard)
260 */
261 static void avc_tuner_tuneqpsk(struct firedtv *fdtv,
262 struct dvb_frontend_parameters *params,
263 struct avc_command_frame *c)
264 {
265 c->opcode = AVC_OPCODE_VENDOR;
266
267 c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
268 c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
269 c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
270 if (fdtv->type == FIREDTV_DVB_S2)
271 c->operand[3] = SFE_VENDOR_OPCODE_TUNE_QPSK2;
272 else
273 c->operand[3] = SFE_VENDOR_OPCODE_TUNE_QPSK;
274
275 c->operand[4] = (params->frequency >> 24) & 0xff;
276 c->operand[5] = (params->frequency >> 16) & 0xff;
277 c->operand[6] = (params->frequency >> 8) & 0xff;
278 c->operand[7] = params->frequency & 0xff;
279
280 c->operand[8] = ((params->u.qpsk.symbol_rate / 1000) >> 8) & 0xff;
281 c->operand[9] = (params->u.qpsk.symbol_rate / 1000) & 0xff;
282
283 switch (params->u.qpsk.fec_inner) {
284 case FEC_1_2: c->operand[10] = 0x1; break;
285 case FEC_2_3: c->operand[10] = 0x2; break;
286 case FEC_3_4: c->operand[10] = 0x3; break;
287 case FEC_5_6: c->operand[10] = 0x4; break;
288 case FEC_7_8: c->operand[10] = 0x5; break;
289 case FEC_4_5:
290 case FEC_8_9:
291 case FEC_AUTO:
292 default: c->operand[10] = 0x0;
293 }
294
295 if (fdtv->voltage == 0xff)
296 c->operand[11] = 0xff;
297 else if (fdtv->voltage == SEC_VOLTAGE_18) /* polarisation */
298 c->operand[11] = 0;
299 else
300 c->operand[11] = 1;
301
302 if (fdtv->tone == 0xff)
303 c->operand[12] = 0xff;
304 else if (fdtv->tone == SEC_TONE_ON) /* band */
305 c->operand[12] = 1;
306 else
307 c->operand[12] = 0;
308
309 if (fdtv->type == FIREDTV_DVB_S2) {
310 c->operand[13] = 0x1;
311 c->operand[14] = 0xff;
312 c->operand[15] = 0xff;
313 c->length = 20;
314 } else {
315 c->length = 16;
316 }
317 }
318
319 static void avc_tuner_dsd_dvb_c(struct dvb_frontend_parameters *params,
320 struct avc_command_frame *c)
321 {
322 c->opcode = AVC_OPCODE_DSD;
323
324 c->operand[0] = 0; /* source plug */
325 c->operand[1] = 0xd2; /* subfunction replace */
326 c->operand[2] = 0x20; /* system id = DVB */
327 c->operand[3] = 0x00; /* antenna number */
328 c->operand[4] = 0x11; /* system_specific_multiplex selection_length */
329
330 /* multiplex_valid_flags, high byte */
331 c->operand[5] = 0 << 7 /* reserved */
332 | 0 << 6 /* Polarisation */
333 | 0 << 5 /* Orbital_Pos */
334 | 1 << 4 /* Frequency */
335 | 1 << 3 /* Symbol_Rate */
336 | 0 << 2 /* FEC_outer */
337 | (params->u.qam.fec_inner != FEC_AUTO ? 1 << 1 : 0)
338 | (params->u.qam.modulation != QAM_AUTO ? 1 << 0 : 0);
339
340 /* multiplex_valid_flags, low byte */
341 c->operand[6] = 0 << 7 /* NetworkID */
342 | 0 << 0 /* reserved */ ;
343
344 c->operand[7] = 0x00;
345 c->operand[8] = 0x00;
346 c->operand[9] = 0x00;
347 c->operand[10] = 0x00;
348
349 c->operand[11] = (((params->frequency / 4000) >> 16) & 0xff) | (2 << 6);
350 c->operand[12] = ((params->frequency / 4000) >> 8) & 0xff;
351 c->operand[13] = (params->frequency / 4000) & 0xff;
352 c->operand[14] = ((params->u.qpsk.symbol_rate / 1000) >> 12) & 0xff;
353 c->operand[15] = ((params->u.qpsk.symbol_rate / 1000) >> 4) & 0xff;
354 c->operand[16] = ((params->u.qpsk.symbol_rate / 1000) << 4) & 0xf0;
355 c->operand[17] = 0x00;
356
357 switch (params->u.qpsk.fec_inner) {
358 case FEC_1_2: c->operand[18] = 0x1; break;
359 case FEC_2_3: c->operand[18] = 0x2; break;
360 case FEC_3_4: c->operand[18] = 0x3; break;
361 case FEC_5_6: c->operand[18] = 0x4; break;
362 case FEC_7_8: c->operand[18] = 0x5; break;
363 case FEC_8_9: c->operand[18] = 0x6; break;
364 case FEC_4_5: c->operand[18] = 0x8; break;
365 case FEC_AUTO:
366 default: c->operand[18] = 0x0;
367 }
368
369 switch (params->u.qam.modulation) {
370 case QAM_16: c->operand[19] = 0x08; break;
371 case QAM_32: c->operand[19] = 0x10; break;
372 case QAM_64: c->operand[19] = 0x18; break;
373 case QAM_128: c->operand[19] = 0x20; break;
374 case QAM_256: c->operand[19] = 0x28; break;
375 case QAM_AUTO:
376 default: c->operand[19] = 0x00;
377 }
378
379 c->operand[20] = 0x00;
380 c->operand[21] = 0x00;
381 /* Nr_of_dsd_sel_specs = 0 -> no PIDs are transmitted */
382 c->operand[22] = 0x00;
383
384 c->length = 28;
385 }
386
387 static void avc_tuner_dsd_dvb_t(struct dvb_frontend_parameters *params,
388 struct avc_command_frame *c)
389 {
390 struct dvb_ofdm_parameters *ofdm = &params->u.ofdm;
391
392 c->opcode = AVC_OPCODE_DSD;
393
394 c->operand[0] = 0; /* source plug */
395 c->operand[1] = 0xd2; /* subfunction replace */
396 c->operand[2] = 0x20; /* system id = DVB */
397 c->operand[3] = 0x00; /* antenna number */
398 c->operand[4] = 0x0c; /* system_specific_multiplex selection_length */
399
400 /* multiplex_valid_flags, high byte */
401 c->operand[5] =
402 0 << 7 /* reserved */
403 | 1 << 6 /* CenterFrequency */
404 | (ofdm->bandwidth != BANDWIDTH_AUTO ? 1 << 5 : 0)
405 | (ofdm->constellation != QAM_AUTO ? 1 << 4 : 0)
406 | (ofdm->hierarchy_information != HIERARCHY_AUTO ? 1 << 3 : 0)
407 | (ofdm->code_rate_HP != FEC_AUTO ? 1 << 2 : 0)
408 | (ofdm->code_rate_LP != FEC_AUTO ? 1 << 1 : 0)
409 | (ofdm->guard_interval != GUARD_INTERVAL_AUTO ? 1 << 0 : 0);
410
411 /* multiplex_valid_flags, low byte */
412 c->operand[6] =
413 0 << 7 /* NetworkID */
414 | (ofdm->transmission_mode != TRANSMISSION_MODE_AUTO ? 1 << 6 : 0)
415 | 0 << 5 /* OtherFrequencyFlag */
416 | 0 << 0 /* reserved */ ;
417
418 c->operand[7] = 0x0;
419 c->operand[8] = (params->frequency / 10) >> 24;
420 c->operand[9] = ((params->frequency / 10) >> 16) & 0xff;
421 c->operand[10] = ((params->frequency / 10) >> 8) & 0xff;
422 c->operand[11] = (params->frequency / 10) & 0xff;
423
424 switch (ofdm->bandwidth) {
425 case BANDWIDTH_7_MHZ: c->operand[12] = 0x20; break;
426 case BANDWIDTH_8_MHZ:
427 case BANDWIDTH_6_MHZ: /* not defined by AVC spec */
428 case BANDWIDTH_AUTO:
429 default: c->operand[12] = 0x00;
430 }
431
432 switch (ofdm->constellation) {
433 case QAM_16: c->operand[13] = 1 << 6; break;
434 case QAM_64: c->operand[13] = 2 << 6; break;
435 case QPSK:
436 default: c->operand[13] = 0x00;
437 }
438
439 switch (ofdm->hierarchy_information) {
440 case HIERARCHY_1: c->operand[13] |= 1 << 3; break;
441 case HIERARCHY_2: c->operand[13] |= 2 << 3; break;
442 case HIERARCHY_4: c->operand[13] |= 3 << 3; break;
443 case HIERARCHY_AUTO:
444 case HIERARCHY_NONE:
445 default: break;
446 }
447
448 switch (ofdm->code_rate_HP) {
449 case FEC_2_3: c->operand[13] |= 1; break;
450 case FEC_3_4: c->operand[13] |= 2; break;
451 case FEC_5_6: c->operand[13] |= 3; break;
452 case FEC_7_8: c->operand[13] |= 4; break;
453 case FEC_1_2:
454 default: break;
455 }
456
457 switch (ofdm->code_rate_LP) {
458 case FEC_2_3: c->operand[14] = 1 << 5; break;
459 case FEC_3_4: c->operand[14] = 2 << 5; break;
460 case FEC_5_6: c->operand[14] = 3 << 5; break;
461 case FEC_7_8: c->operand[14] = 4 << 5; break;
462 case FEC_1_2:
463 default: c->operand[14] = 0x00; break;
464 }
465
466 switch (ofdm->guard_interval) {
467 case GUARD_INTERVAL_1_16: c->operand[14] |= 1 << 3; break;
468 case GUARD_INTERVAL_1_8: c->operand[14] |= 2 << 3; break;
469 case GUARD_INTERVAL_1_4: c->operand[14] |= 3 << 3; break;
470 case GUARD_INTERVAL_1_32:
471 case GUARD_INTERVAL_AUTO:
472 default: break;
473 }
474
475 switch (ofdm->transmission_mode) {
476 case TRANSMISSION_MODE_8K: c->operand[14] |= 1 << 1; break;
477 case TRANSMISSION_MODE_2K:
478 case TRANSMISSION_MODE_AUTO:
479 default: break;
480 }
481
482 c->operand[15] = 0x00; /* network_ID[0] */
483 c->operand[16] = 0x00; /* network_ID[1] */
484 /* Nr_of_dsd_sel_specs = 0 -> no PIDs are transmitted */
485 c->operand[17] = 0x00;
486
487 c->length = 24;
488 }
489
490 int avc_tuner_dsd(struct firedtv *fdtv,
491 struct dvb_frontend_parameters *params)
492 {
493 char buffer[sizeof(struct avc_command_frame)];
494 struct avc_command_frame *c = (void *)buffer;
495 struct avc_response_frame *r = (void *)buffer; /* FIXME: unused */
496
497 memset(c, 0, sizeof(*c));
498
499 c->ctype = AVC_CTYPE_CONTROL;
500 c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
501
502 switch (fdtv->type) {
503 case FIREDTV_DVB_S:
504 case FIREDTV_DVB_S2: avc_tuner_tuneqpsk(fdtv, params, c); break;
505 case FIREDTV_DVB_C: avc_tuner_dsd_dvb_c(params, c); break;
506 case FIREDTV_DVB_T: avc_tuner_dsd_dvb_t(params, c); break;
507 default:
508 BUG();
509 }
510
511 if (avc_write(fdtv, c, r) < 0)
512 return -EIO;
513
514 msleep(500);
515 #if 0
516 /* FIXME: */
517 /* u8 *status was an out-parameter of avc_tuner_dsd, unused by caller */
518 if (status)
519 *status = r->operand[2];
520 #endif
521 return 0;
522 }
523
524 int avc_tuner_set_pids(struct firedtv *fdtv, unsigned char pidc, u16 pid[])
525 {
526 char buffer[sizeof(struct avc_command_frame)];
527 struct avc_command_frame *c = (void *)buffer;
528 struct avc_response_frame *r = (void *)buffer; /* FIXME: unused */
529 int pos, k;
530
531 if (pidc > 16 && pidc != 0xff)
532 return -EINVAL;
533
534 memset(c, 0, sizeof(*c));
535
536 c->ctype = AVC_CTYPE_CONTROL;
537 c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
538 c->opcode = AVC_OPCODE_DSD;
539
540 c->operand[0] = 0; /* source plug */
541 c->operand[1] = 0xd2; /* subfunction replace */
542 c->operand[2] = 0x20; /* system id = DVB */
543 c->operand[3] = 0x00; /* antenna number */
544 c->operand[4] = 0x00; /* system_specific_multiplex selection_length */
545 c->operand[5] = pidc; /* Nr_of_dsd_sel_specs */
546
547 pos = 6;
548 if (pidc != 0xff)
549 for (k = 0; k < pidc; k++) {
550 c->operand[pos++] = 0x13; /* flowfunction relay */
551 c->operand[pos++] = 0x80; /* dsd_sel_spec_valid_flags -> PID */
552 c->operand[pos++] = (pid[k] >> 8) & 0x1f;
553 c->operand[pos++] = pid[k] & 0xff;
554 c->operand[pos++] = 0x00; /* tableID */
555 c->operand[pos++] = 0x00; /* filter_length */
556 }
557
558 c->length = ALIGN(3 + pos, 4);
559
560 if (avc_write(fdtv, c, r) < 0)
561 return -EIO;
562
563 msleep(50);
564 return 0;
565 }
566
567 int avc_tuner_get_ts(struct firedtv *fdtv)
568 {
569 char buffer[sizeof(struct avc_command_frame)];
570 struct avc_command_frame *c = (void *)buffer;
571 struct avc_response_frame *r = (void *)buffer; /* FIXME: unused */
572 int sl;
573
574 memset(c, 0, sizeof(*c));
575
576 c->ctype = AVC_CTYPE_CONTROL;
577 c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
578 c->opcode = AVC_OPCODE_DSIT;
579
580 sl = fdtv->type == FIREDTV_DVB_T ? 0x0c : 0x11;
581
582 c->operand[0] = 0; /* source plug */
583 c->operand[1] = 0xd2; /* subfunction replace */
584 c->operand[2] = 0xff; /* status */
585 c->operand[3] = 0x20; /* system id = DVB */
586 c->operand[4] = 0x00; /* antenna number */
587 c->operand[5] = 0x0; /* system_specific_search_flags */
588 c->operand[6] = sl; /* system_specific_multiplex selection_length */
589 c->operand[7] = 0x00; /* valid_flags [0] */
590 c->operand[8] = 0x00; /* valid_flags [1] */
591 c->operand[7 + sl] = 0x00; /* nr_of_dsit_sel_specs (always 0) */
592
593 c->length = fdtv->type == FIREDTV_DVB_T ? 24 : 28;
594
595 if (avc_write(fdtv, c, r) < 0)
596 return -EIO;
597
598 msleep(250);
599 return 0;
600 }
601
602 int avc_identify_subunit(struct firedtv *fdtv)
603 {
604 char buffer[sizeof(struct avc_command_frame)];
605 struct avc_command_frame *c = (void *)buffer;
606 struct avc_response_frame *r = (void *)buffer;
607
608 memset(c, 0, sizeof(*c));
609
610 c->ctype = AVC_CTYPE_CONTROL;
611 c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
612 c->opcode = AVC_OPCODE_READ_DESCRIPTOR;
613
614 c->operand[0] = DESCRIPTOR_SUBUNIT_IDENTIFIER;
615 c->operand[1] = 0xff;
616 c->operand[2] = 0x00;
617 c->operand[3] = 0x00; /* length highbyte */
618 c->operand[4] = 0x08; /* length lowbyte */
619 c->operand[5] = 0x00; /* offset highbyte */
620 c->operand[6] = 0x0d; /* offset lowbyte */
621
622 c->length = 12;
623
624 if (avc_write(fdtv, c, r) < 0)
625 return -EIO;
626
627 if ((r->response != AVC_RESPONSE_STABLE &&
628 r->response != AVC_RESPONSE_ACCEPTED) ||
629 (r->operand[3] << 8) + r->operand[4] != 8) {
630 dev_err(fdtv->device, "cannot read subunit identifier\n");
631 return -EINVAL;
632 }
633 return 0;
634 }
635
636 #define SIZEOF_ANTENNA_INPUT_INFO 22
637
638 int avc_tuner_status(struct firedtv *fdtv, struct firedtv_tuner_status *stat)
639 {
640 char buffer[sizeof(struct avc_command_frame)];
641 struct avc_command_frame *c = (void *)buffer;
642 struct avc_response_frame *r = (void *)buffer;
643 int length;
644
645 memset(c, 0, sizeof(*c));
646
647 c->ctype = AVC_CTYPE_CONTROL;
648 c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
649 c->opcode = AVC_OPCODE_READ_DESCRIPTOR;
650
651 c->operand[0] = DESCRIPTOR_TUNER_STATUS;
652 c->operand[1] = 0xff; /* read_result_status */
653 c->operand[2] = 0x00; /* reserved */
654 c->operand[3] = 0; /* SIZEOF_ANTENNA_INPUT_INFO >> 8; */
655 c->operand[4] = 0; /* SIZEOF_ANTENNA_INPUT_INFO & 0xff; */
656 c->operand[5] = 0x00;
657 c->operand[6] = 0x00;
658
659 c->length = 12;
660
661 if (avc_write(fdtv, c, r) < 0)
662 return -EIO;
663
664 if (r->response != AVC_RESPONSE_STABLE &&
665 r->response != AVC_RESPONSE_ACCEPTED) {
666 dev_err(fdtv->device, "cannot read tuner status\n");
667 return -EINVAL;
668 }
669
670 length = r->operand[9];
671 if (r->operand[1] != 0x10 || length != SIZEOF_ANTENNA_INPUT_INFO) {
672 dev_err(fdtv->device, "got invalid tuner status\n");
673 return -EINVAL;
674 }
675
676 stat->active_system = r->operand[10];
677 stat->searching = r->operand[11] >> 7 & 1;
678 stat->moving = r->operand[11] >> 6 & 1;
679 stat->no_rf = r->operand[11] >> 5 & 1;
680 stat->input = r->operand[12] >> 7 & 1;
681 stat->selected_antenna = r->operand[12] & 0x7f;
682 stat->ber = r->operand[13] << 24 |
683 r->operand[14] << 16 |
684 r->operand[15] << 8 |
685 r->operand[16];
686 stat->signal_strength = r->operand[17];
687 stat->raster_frequency = r->operand[18] >> 6 & 2;
688 stat->rf_frequency = (r->operand[18] & 0x3f) << 16 |
689 r->operand[19] << 8 |
690 r->operand[20];
691 stat->man_dep_info_length = r->operand[21];
692 stat->front_end_error = r->operand[22] >> 4 & 1;
693 stat->antenna_error = r->operand[22] >> 3 & 1;
694 stat->front_end_power_status = r->operand[22] >> 1 & 1;
695 stat->power_supply = r->operand[22] & 1;
696 stat->carrier_noise_ratio = r->operand[23] << 8 |
697 r->operand[24];
698 stat->power_supply_voltage = r->operand[27];
699 stat->antenna_voltage = r->operand[28];
700 stat->firewire_bus_voltage = r->operand[29];
701 stat->ca_mmi = r->operand[30] & 1;
702 stat->ca_pmt_reply = r->operand[31] >> 7 & 1;
703 stat->ca_date_time_request = r->operand[31] >> 6 & 1;
704 stat->ca_application_info = r->operand[31] >> 5 & 1;
705 stat->ca_module_present_status = r->operand[31] >> 4 & 1;
706 stat->ca_dvb_flag = r->operand[31] >> 3 & 1;
707 stat->ca_error_flag = r->operand[31] >> 2 & 1;
708 stat->ca_initialization_status = r->operand[31] >> 1 & 1;
709
710 return 0;
711 }
712
713 int avc_lnb_control(struct firedtv *fdtv, char voltage, char burst,
714 char conttone, char nrdiseq,
715 struct dvb_diseqc_master_cmd *diseqcmd)
716 {
717 char buffer[sizeof(struct avc_command_frame)];
718 struct avc_command_frame *c = (void *)buffer;
719 struct avc_response_frame *r = (void *)buffer;
720 int i, j, k;
721
722 memset(c, 0, sizeof(*c));
723
724 c->ctype = AVC_CTYPE_CONTROL;
725 c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
726 c->opcode = AVC_OPCODE_VENDOR;
727
728 c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
729 c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
730 c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
731 c->operand[3] = SFE_VENDOR_OPCODE_LNB_CONTROL;
732
733 c->operand[4] = voltage;
734 c->operand[5] = nrdiseq;
735
736 i = 6;
737
738 for (j = 0; j < nrdiseq; j++) {
739 c->operand[i++] = diseqcmd[j].msg_len;
740
741 for (k = 0; k < diseqcmd[j].msg_len; k++)
742 c->operand[i++] = diseqcmd[j].msg[k];
743 }
744
745 c->operand[i++] = burst;
746 c->operand[i++] = conttone;
747
748 c->length = ALIGN(3 + i, 4);
749
750 if (avc_write(fdtv, c, r) < 0)
751 return -EIO;
752
753 if (r->response != AVC_RESPONSE_ACCEPTED) {
754 dev_err(fdtv->device, "LNB control failed\n");
755 return -EINVAL;
756 }
757
758 return 0;
759 }
760
761 int avc_register_remote_control(struct firedtv *fdtv)
762 {
763 char buffer[sizeof(struct avc_command_frame)];
764 struct avc_command_frame *c = (void *)buffer;
765
766 memset(c, 0, sizeof(*c));
767
768 c->ctype = AVC_CTYPE_NOTIFY;
769 c->subunit = AVC_SUBUNIT_TYPE_UNIT | 7;
770 c->opcode = AVC_OPCODE_VENDOR;
771
772 c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
773 c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
774 c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
775 c->operand[3] = SFE_VENDOR_OPCODE_REGISTER_REMOTE_CONTROL;
776
777 c->length = 8;
778
779 return avc_write(fdtv, c, NULL);
780 }
781
782 void avc_remote_ctrl_work(struct work_struct *work)
783 {
784 struct firedtv *fdtv =
785 container_of(work, struct firedtv, remote_ctrl_work);
786
787 /* Should it be rescheduled in failure cases? */
788 avc_register_remote_control(fdtv);
789 }
790
791 #if 0 /* FIXME: unused */
792 int avc_tuner_host2ca(struct firedtv *fdtv)
793 {
794 char buffer[sizeof(struct avc_command_frame)];
795 struct avc_command_frame *c = (void *)buffer;
796 struct avc_response_frame *r = (void *)buffer; /* FIXME: unused */
797
798 memset(c, 0, sizeof(*c));
799
800 c->ctype = AVC_CTYPE_CONTROL;
801 c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
802 c->opcode = AVC_OPCODE_VENDOR;
803
804 c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
805 c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
806 c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
807 c->operand[3] = SFE_VENDOR_OPCODE_HOST2CA;
808 c->operand[4] = 0; /* slot */
809 c->operand[5] = SFE_VENDOR_TAG_CA_APPLICATION_INFO; /* ca tag */
810 c->operand[6] = 0; /* more/last */
811 c->operand[7] = 0; /* length */
812
813 c->length = 12;
814
815 if (avc_write(fdtv, c, r) < 0)
816 return -EIO;
817
818 return 0;
819 }
820 #endif
821
822 static int get_ca_object_pos(struct avc_response_frame *r)
823 {
824 int length = 1;
825
826 /* Check length of length field */
827 if (r->operand[7] & 0x80)
828 length = (r->operand[7] & 0x7f) + 1;
829 return length + 7;
830 }
831
832 static int get_ca_object_length(struct avc_response_frame *r)
833 {
834 #if 0 /* FIXME: unused */
835 int size = 0;
836 int i;
837
838 if (r->operand[7] & 0x80)
839 for (i = 0; i < (r->operand[7] & 0x7f); i++) {
840 size <<= 8;
841 size += r->operand[8 + i];
842 }
843 #endif
844 return r->operand[7];
845 }
846
847 int avc_ca_app_info(struct firedtv *fdtv, char *app_info, unsigned int *len)
848 {
849 char buffer[sizeof(struct avc_command_frame)];
850 struct avc_command_frame *c = (void *)buffer;
851 struct avc_response_frame *r = (void *)buffer;
852 int pos;
853
854 memset(c, 0, sizeof(*c));
855
856 c->ctype = AVC_CTYPE_STATUS;
857 c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
858 c->opcode = AVC_OPCODE_VENDOR;
859
860 c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
861 c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
862 c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
863 c->operand[3] = SFE_VENDOR_OPCODE_CA2HOST;
864 c->operand[4] = 0; /* slot */
865 c->operand[5] = SFE_VENDOR_TAG_CA_APPLICATION_INFO; /* ca tag */
866
867 c->length = 12;
868
869 if (avc_write(fdtv, c, r) < 0)
870 return -EIO;
871
872 /* FIXME: check response code and validate response data */
873
874 pos = get_ca_object_pos(r);
875 app_info[0] = (EN50221_TAG_APP_INFO >> 16) & 0xff;
876 app_info[1] = (EN50221_TAG_APP_INFO >> 8) & 0xff;
877 app_info[2] = (EN50221_TAG_APP_INFO >> 0) & 0xff;
878 app_info[3] = 6 + r->operand[pos + 4];
879 app_info[4] = 0x01;
880 memcpy(&app_info[5], &r->operand[pos], 5 + r->operand[pos + 4]);
881 *len = app_info[3] + 4;
882
883 return 0;
884 }
885
886 int avc_ca_info(struct firedtv *fdtv, char *app_info, unsigned int *len)
887 {
888 char buffer[sizeof(struct avc_command_frame)];
889 struct avc_command_frame *c = (void *)buffer;
890 struct avc_response_frame *r = (void *)buffer;
891 int pos;
892
893 memset(c, 0, sizeof(*c));
894
895 c->ctype = AVC_CTYPE_STATUS;
896 c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
897 c->opcode = AVC_OPCODE_VENDOR;
898
899 c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
900 c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
901 c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
902 c->operand[3] = SFE_VENDOR_OPCODE_CA2HOST;
903 c->operand[4] = 0; /* slot */
904 c->operand[5] = SFE_VENDOR_TAG_CA_APPLICATION_INFO; /* ca tag */
905
906 c->length = 12;
907
908 if (avc_write(fdtv, c, r) < 0)
909 return -EIO;
910
911 pos = get_ca_object_pos(r);
912 app_info[0] = (EN50221_TAG_CA_INFO >> 16) & 0xff;
913 app_info[1] = (EN50221_TAG_CA_INFO >> 8) & 0xff;
914 app_info[2] = (EN50221_TAG_CA_INFO >> 0) & 0xff;
915 app_info[3] = 2;
916 app_info[4] = r->operand[pos + 0];
917 app_info[5] = r->operand[pos + 1];
918 *len = app_info[3] + 4;
919
920 return 0;
921 }
922
923 int avc_ca_reset(struct firedtv *fdtv)
924 {
925 char buffer[sizeof(struct avc_command_frame)];
926 struct avc_command_frame *c = (void *)buffer;
927 struct avc_response_frame *r = (void *)buffer; /* FIXME: unused */
928
929 memset(c, 0, sizeof(*c));
930
931 c->ctype = AVC_CTYPE_CONTROL;
932 c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
933 c->opcode = AVC_OPCODE_VENDOR;
934
935 c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
936 c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
937 c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
938 c->operand[3] = SFE_VENDOR_OPCODE_HOST2CA;
939 c->operand[4] = 0; /* slot */
940 c->operand[5] = SFE_VENDOR_TAG_CA_RESET; /* ca tag */
941 c->operand[6] = 0; /* more/last */
942 c->operand[7] = 1; /* length */
943 c->operand[8] = 0; /* force hardware reset */
944
945 c->length = 12;
946
947 if (avc_write(fdtv, c, r) < 0)
948 return -EIO;
949
950 return 0;
951 }
952
953 int avc_ca_pmt(struct firedtv *fdtv, char *msg, int length)
954 {
955 char buffer[sizeof(struct avc_command_frame)];
956 struct avc_command_frame *c = (void *)buffer;
957 struct avc_response_frame *r = (void *)buffer;
958 int list_management;
959 int program_info_length;
960 int pmt_cmd_id;
961 int read_pos;
962 int write_pos;
963 int es_info_length;
964 int crc32_csum;
965
966 memset(c, 0, sizeof(*c));
967
968 c->ctype = AVC_CTYPE_CONTROL;
969 c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
970 c->opcode = AVC_OPCODE_VENDOR;
971
972 if (msg[0] != EN50221_LIST_MANAGEMENT_ONLY) {
973 dev_info(fdtv->device, "forcing list_management to ONLY\n");
974 msg[0] = EN50221_LIST_MANAGEMENT_ONLY;
975 }
976 /* We take the cmd_id from the programme level only! */
977 list_management = msg[0];
978 program_info_length = ((msg[4] & 0x0f) << 8) + msg[5];
979 if (program_info_length > 0)
980 program_info_length--; /* Remove pmt_cmd_id */
981 pmt_cmd_id = msg[6];
982
983 c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
984 c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
985 c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
986 c->operand[3] = SFE_VENDOR_OPCODE_HOST2CA;
987 c->operand[4] = 0; /* slot */
988 c->operand[5] = SFE_VENDOR_TAG_CA_PMT; /* ca tag */
989 c->operand[6] = 0; /* more/last */
990 /* c->operand[7] = XXXprogram_info_length + 17; */ /* length */
991 c->operand[8] = list_management;
992 c->operand[9] = 0x01; /* pmt_cmd=OK_descramble */
993
994 /* TS program map table */
995
996 c->operand[10] = 0x02; /* Table id=2 */
997 c->operand[11] = 0x80; /* Section syntax + length */
998 /* c->operand[12] = XXXprogram_info_length + 12; */
999 c->operand[13] = msg[1]; /* Program number */
1000 c->operand[14] = msg[2];
1001 c->operand[15] = 0x01; /* Version number=0 + current/next=1 */
1002 c->operand[16] = 0x00; /* Section number=0 */
1003 c->operand[17] = 0x00; /* Last section number=0 */
1004 c->operand[18] = 0x1f; /* PCR_PID=1FFF */
1005 c->operand[19] = 0xff;
1006 c->operand[20] = (program_info_length >> 8); /* Program info length */
1007 c->operand[21] = (program_info_length & 0xff);
1008
1009 /* CA descriptors at programme level */
1010 read_pos = 6;
1011 write_pos = 22;
1012 if (program_info_length > 0) {
1013 pmt_cmd_id = msg[read_pos++];
1014 if (pmt_cmd_id != 1 && pmt_cmd_id != 4)
1015 dev_err(fdtv->device,
1016 "invalid pmt_cmd_id %d\n", pmt_cmd_id);
1017
1018 memcpy(&c->operand[write_pos], &msg[read_pos],
1019 program_info_length);
1020 read_pos += program_info_length;
1021 write_pos += program_info_length;
1022 }
1023 while (read_pos < length) {
1024 c->operand[write_pos++] = msg[read_pos++];
1025 c->operand[write_pos++] = msg[read_pos++];
1026 c->operand[write_pos++] = msg[read_pos++];
1027 es_info_length =
1028 ((msg[read_pos] & 0x0f) << 8) + msg[read_pos + 1];
1029 read_pos += 2;
1030 if (es_info_length > 0)
1031 es_info_length--; /* Remove pmt_cmd_id */
1032 c->operand[write_pos++] = es_info_length >> 8;
1033 c->operand[write_pos++] = es_info_length & 0xff;
1034 if (es_info_length > 0) {
1035 pmt_cmd_id = msg[read_pos++];
1036 if (pmt_cmd_id != 1 && pmt_cmd_id != 4)
1037 dev_err(fdtv->device, "invalid pmt_cmd_id %d "
1038 "at stream level\n", pmt_cmd_id);
1039
1040 memcpy(&c->operand[write_pos], &msg[read_pos],
1041 es_info_length);
1042 read_pos += es_info_length;
1043 write_pos += es_info_length;
1044 }
1045 }
1046
1047 /* CRC */
1048 c->operand[write_pos++] = 0x00;
1049 c->operand[write_pos++] = 0x00;
1050 c->operand[write_pos++] = 0x00;
1051 c->operand[write_pos++] = 0x00;
1052
1053 c->operand[7] = write_pos - 8;
1054 c->operand[12] = write_pos - 13;
1055
1056 crc32_csum = crc32_be(0, &c->operand[10], c->operand[12] - 1);
1057 c->operand[write_pos - 4] = (crc32_csum >> 24) & 0xff;
1058 c->operand[write_pos - 3] = (crc32_csum >> 16) & 0xff;
1059 c->operand[write_pos - 2] = (crc32_csum >> 8) & 0xff;
1060 c->operand[write_pos - 1] = (crc32_csum >> 0) & 0xff;
1061
1062 c->length = ALIGN(3 + write_pos, 4);
1063
1064 if (avc_write(fdtv, c, r) < 0)
1065 return -EIO;
1066
1067 if (r->response != AVC_RESPONSE_ACCEPTED) {
1068 dev_err(fdtv->device,
1069 "CA PMT failed with response 0x%x\n", r->response);
1070 return -EFAULT;
1071 }
1072
1073 return 0;
1074 }
1075
1076 int avc_ca_get_time_date(struct firedtv *fdtv, int *interval)
1077 {
1078 char buffer[sizeof(struct avc_command_frame)];
1079 struct avc_command_frame *c = (void *)buffer;
1080 struct avc_response_frame *r = (void *)buffer;
1081
1082 memset(c, 0, sizeof(*c));
1083
1084 c->ctype = AVC_CTYPE_STATUS;
1085 c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
1086 c->opcode = AVC_OPCODE_VENDOR;
1087
1088 c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
1089 c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
1090 c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
1091 c->operand[3] = SFE_VENDOR_OPCODE_CA2HOST;
1092 c->operand[4] = 0; /* slot */
1093 c->operand[5] = SFE_VENDOR_TAG_CA_DATE_TIME; /* ca tag */
1094 c->operand[6] = 0; /* more/last */
1095 c->operand[7] = 0; /* length */
1096
1097 c->length = 12;
1098
1099 if (avc_write(fdtv, c, r) < 0)
1100 return -EIO;
1101
1102 /* FIXME: check response code and validate response data */
1103
1104 *interval = r->operand[get_ca_object_pos(r)];
1105
1106 return 0;
1107 }
1108
1109 int avc_ca_enter_menu(struct firedtv *fdtv)
1110 {
1111 char buffer[sizeof(struct avc_command_frame)];
1112 struct avc_command_frame *c = (void *)buffer;
1113 struct avc_response_frame *r = (void *)buffer; /* FIXME: unused */
1114
1115 memset(c, 0, sizeof(*c));
1116
1117 c->ctype = AVC_CTYPE_STATUS;
1118 c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
1119 c->opcode = AVC_OPCODE_VENDOR;
1120
1121 c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
1122 c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
1123 c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
1124 c->operand[3] = SFE_VENDOR_OPCODE_HOST2CA;
1125 c->operand[4] = 0; /* slot */
1126 c->operand[5] = SFE_VENDOR_TAG_CA_ENTER_MENU;
1127 c->operand[6] = 0; /* more/last */
1128 c->operand[7] = 0; /* length */
1129
1130 c->length = 12;
1131
1132 if (avc_write(fdtv, c, r) < 0)
1133 return -EIO;
1134
1135 return 0;
1136 }
1137
1138 int avc_ca_get_mmi(struct firedtv *fdtv, char *mmi_object, unsigned int *len)
1139 {
1140 char buffer[sizeof(struct avc_command_frame)];
1141 struct avc_command_frame *c = (void *)buffer;
1142 struct avc_response_frame *r = (void *)buffer;
1143
1144 memset(c, 0, sizeof(*c));
1145
1146 c->ctype = AVC_CTYPE_STATUS;
1147 c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit;
1148 c->opcode = AVC_OPCODE_VENDOR;
1149
1150 c->operand[0] = SFE_VENDOR_DE_COMPANYID_0;
1151 c->operand[1] = SFE_VENDOR_DE_COMPANYID_1;
1152 c->operand[2] = SFE_VENDOR_DE_COMPANYID_2;
1153 c->operand[3] = SFE_VENDOR_OPCODE_CA2HOST;
1154 c->operand[4] = 0; /* slot */
1155 c->operand[5] = SFE_VENDOR_TAG_CA_MMI;
1156 c->operand[6] = 0; /* more/last */
1157 c->operand[7] = 0; /* length */
1158
1159 c->length = 12;
1160
1161 if (avc_write(fdtv, c, r) < 0)
1162 return -EIO;
1163
1164 /* FIXME: check response code and validate response data */
1165
1166 *len = get_ca_object_length(r);
1167 memcpy(mmi_object, &r->operand[get_ca_object_pos(r)], *len);
1168
1169 return 0;
1170 }
1171
1172 #define CMP_OUTPUT_PLUG_CONTROL_REG_0 0xfffff0000904ULL
1173
1174 static int cmp_read(struct firedtv *fdtv, void *buf, u64 addr, size_t len)
1175 {
1176 int ret;
1177
1178 if (mutex_lock_interruptible(&fdtv->avc_mutex))
1179 return -EINTR;
1180
1181 ret = fdtv->backend->read(fdtv, addr, buf, len);
1182 if (ret < 0)
1183 dev_err(fdtv->device, "CMP: read I/O error\n");
1184
1185 mutex_unlock(&fdtv->avc_mutex);
1186 return ret;
1187 }
1188
1189 static int cmp_lock(struct firedtv *fdtv, void *data, u64 addr, __be32 arg)
1190 {
1191 int ret;
1192
1193 if (mutex_lock_interruptible(&fdtv->avc_mutex))
1194 return -EINTR;
1195
1196 ret = fdtv->backend->lock(fdtv, addr, data, arg);
1197 if (ret < 0)
1198 dev_err(fdtv->device, "CMP: lock I/O error\n");
1199
1200 mutex_unlock(&fdtv->avc_mutex);
1201 return ret;
1202 }
1203
1204 static inline u32 get_opcr(__be32 opcr, u32 mask, u32 shift)
1205 {
1206 return (be32_to_cpu(opcr) >> shift) & mask;
1207 }
1208
1209 static inline void set_opcr(__be32 *opcr, u32 value, u32 mask, u32 shift)
1210 {
1211 *opcr &= ~cpu_to_be32(mask << shift);
1212 *opcr |= cpu_to_be32((value & mask) << shift);
1213 }
1214
1215 #define get_opcr_online(v) get_opcr((v), 0x1, 31)
1216 #define get_opcr_p2p_connections(v) get_opcr((v), 0x3f, 24)
1217 #define get_opcr_channel(v) get_opcr((v), 0x3f, 16)
1218
1219 #define set_opcr_p2p_connections(p, v) set_opcr((p), (v), 0x3f, 24)
1220 #define set_opcr_channel(p, v) set_opcr((p), (v), 0x3f, 16)
1221 #define set_opcr_data_rate(p, v) set_opcr((p), (v), 0x3, 14)
1222 #define set_opcr_overhead_id(p, v) set_opcr((p), (v), 0xf, 10)
1223
1224 int cmp_establish_pp_connection(struct firedtv *fdtv, int plug, int channel)
1225 {
1226 __be32 old_opcr, opcr;
1227 u64 opcr_address = CMP_OUTPUT_PLUG_CONTROL_REG_0 + (plug << 2);
1228 int attempts = 0;
1229 int ret;
1230
1231 ret = cmp_read(fdtv, &opcr, opcr_address, 4);
1232 if (ret < 0)
1233 return ret;
1234
1235 repeat:
1236 if (!get_opcr_online(opcr)) {
1237 dev_err(fdtv->device, "CMP: output offline\n");
1238 return -EBUSY;
1239 }
1240
1241 old_opcr = opcr;
1242
1243 if (get_opcr_p2p_connections(opcr)) {
1244 if (get_opcr_channel(opcr) != channel) {
1245 dev_err(fdtv->device, "CMP: cannot change channel\n");
1246 return -EBUSY;
1247 }
1248 dev_info(fdtv->device, "CMP: overlaying connection\n");
1249
1250 /* We don't allocate isochronous resources. */
1251 } else {
1252 set_opcr_channel(&opcr, channel);
1253 set_opcr_data_rate(&opcr, 2); /* S400 */
1254
1255 /* FIXME: this is for the worst case - optimize */
1256 set_opcr_overhead_id(&opcr, 0);
1257
1258 /*
1259 * FIXME: allocate isochronous channel and bandwidth at IRM
1260 * fdtv->backend->alloc_resources(fdtv, channels_mask, bw);
1261 */
1262 }
1263
1264 set_opcr_p2p_connections(&opcr, get_opcr_p2p_connections(opcr) + 1);
1265
1266 ret = cmp_lock(fdtv, &opcr, opcr_address, old_opcr);
1267 if (ret < 0)
1268 return ret;
1269
1270 if (old_opcr != opcr) {
1271 /*
1272 * FIXME: if old_opcr.P2P_Connections > 0,
1273 * deallocate isochronous channel and bandwidth at IRM
1274 * if (...)
1275 * fdtv->backend->dealloc_resources(fdtv, channel, bw);
1276 */
1277
1278 if (++attempts < 6) /* arbitrary limit */
1279 goto repeat;
1280 return -EBUSY;
1281 }
1282
1283 return 0;
1284 }
1285
1286 void cmp_break_pp_connection(struct firedtv *fdtv, int plug, int channel)
1287 {
1288 __be32 old_opcr, opcr;
1289 u64 opcr_address = CMP_OUTPUT_PLUG_CONTROL_REG_0 + (plug << 2);
1290 int attempts = 0;
1291
1292 if (cmp_read(fdtv, &opcr, opcr_address, 4) < 0)
1293 return;
1294
1295 repeat:
1296 if (!get_opcr_online(opcr) || !get_opcr_p2p_connections(opcr) ||
1297 get_opcr_channel(opcr) != channel) {
1298 dev_err(fdtv->device, "CMP: no connection to break\n");
1299 return;
1300 }
1301
1302 old_opcr = opcr;
1303 set_opcr_p2p_connections(&opcr, get_opcr_p2p_connections(opcr) - 1);
1304
1305 if (cmp_lock(fdtv, &opcr, opcr_address, old_opcr) < 0)
1306 return;
1307
1308 if (old_opcr != opcr) {
1309 /*
1310 * FIXME: if old_opcr.P2P_Connections == 1, i.e. we were last
1311 * owner, deallocate isochronous channel and bandwidth at IRM
1312 * if (...)
1313 * fdtv->backend->dealloc_resources(fdtv, channel, bw);
1314 */
1315
1316 if (++attempts < 6) /* arbitrary limit */
1317 goto repeat;
1318 }
1319 }
Linux with added FPC-III support