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[XFRM]: skb_cow_data() does not set proper owner for new skbs.
[linux-2.6/verdex.git] / drivers / media / dvb / bt8xx / dst_ca.c
blobd781504cc2fa8e4c6aa7289e0304a295c995c8ef
1 /*
2 CA-driver for TwinHan DST Frontend/Card
3
4 Copyright (C) 2004, 2005 Manu Abraham (manu@kromtek.com)
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20
21
22
23 #include <linux/kernel.h>
24 #include <linux/module.h>
25 #include <linux/init.h>
26 #include <linux/string.h>
27
28 #include <linux/dvb/ca.h>
29 #include "dvbdev.h"
30 #include "dvb_frontend.h"
31
32 #include "dst_ca.h"
33 #include "dst_common.h"
34
35 static unsigned int verbose = 1;
36 module_param(verbose, int, 0644);
37 MODULE_PARM_DESC(verbose, "verbose startup messages, default is 1 (yes)");
38
39 static unsigned int debug = 1;
40 module_param(debug, int, 0644);
41 MODULE_PARM_DESC(debug, "debug messages, default is 1 (yes)");
42
43 #define dprintk if (debug) printk
44
45 /* Need some more work */
46 static int ca_set_slot_descr(void)
47 {
48 /* We could make this more graceful ? */
49 return -EOPNOTSUPP;
50 }
51
52 /* Need some more work */
53 static int ca_set_pid(void)
54 {
55 /* We could make this more graceful ? */
56 return -EOPNOTSUPP;
57 }
58
59
60 static int put_checksum(u8 *check_string, int length)
61 {
62 u8 i = 0, checksum = 0;
63
64 if (verbose > 3) {
65 dprintk("%s: ========================= Checksum calculation ===========================\n", __FUNCTION__);
66 dprintk("%s: String Length=[0x%02x]\n", __FUNCTION__, length);
67
68 dprintk("%s: String=[", __FUNCTION__);
69 }
70 while (i < length) {
71 if (verbose > 3)
72 dprintk(" %02x", check_string[i]);
73 checksum += check_string[i];
74 i++;
75 }
76 if (verbose > 3) {
77 dprintk(" ]\n");
78 dprintk("%s: Sum=[%02x]\n", __FUNCTION__, checksum);
79 }
80 check_string[length] = ~checksum + 1;
81 if (verbose > 3) {
82 dprintk("%s: Checksum=[%02x]\n", __FUNCTION__, check_string[length]);
83 dprintk("%s: ==========================================================================\n", __FUNCTION__);
84 }
85
86 return 0;
87 }
88
89 static int dst_ci_command(struct dst_state* state, u8 * data, u8 *ca_string, u8 len, int read)
90 {
91 u8 reply;
92
93 dst_comm_init(state);
94 msleep(65);
95
96 if (write_dst(state, data, len)) {
97 dprintk("%s: Write not successful, trying to recover\n", __FUNCTION__);
98 dst_error_recovery(state);
99 return -1;
100 }
101
102 if ((dst_pio_disable(state)) < 0) {
103 dprintk("%s: DST PIO disable failed.\n", __FUNCTION__);
104 return -1;
105 }
106
107 if (read_dst(state, &reply, GET_ACK) < 0) {
108 dprintk("%s: Read not successful, trying to recover\n", __FUNCTION__);
109 dst_error_recovery(state);
110 return -1;
111 }
112
113 if (read) {
114 if (! dst_wait_dst_ready(state, LONG_DELAY)) {
115 dprintk("%s: 8820 not ready\n", __FUNCTION__);
116 return -1;
117 }
118
119 if (read_dst(state, ca_string, 128) < 0) { /* Try to make this dynamic */
120 dprintk("%s: Read not successful, trying to recover\n", __FUNCTION__);
121 dst_error_recovery(state);
122 return -1;
123 }
124 }
125
126 return 0;
127 }
128
129
130 static int dst_put_ci(struct dst_state *state, u8 *data, int len, u8 *ca_string, int read)
131 {
132 u8 dst_ca_comm_err = 0;
133
134 while (dst_ca_comm_err < RETRIES) {
135 dst_comm_init(state);
136 if (verbose > 2)
137 dprintk("%s: Put Command\n", __FUNCTION__);
138 if (dst_ci_command(state, data, ca_string, len, read)) { // If error
139 dst_error_recovery(state);
140 dst_ca_comm_err++; // work required here.
141 }
142 break;
143 }
144
145 return 0;
146 }
147
148
149
150 static int ca_get_app_info(struct dst_state *state)
151 {
152 static u8 command[8] = {0x07, 0x40, 0x01, 0x00, 0x01, 0x00, 0x00, 0xff};
153
154 put_checksum(&command[0], command[0]);
155 if ((dst_put_ci(state, command, sizeof(command), state->messages, GET_REPLY)) < 0) {
156 dprintk("%s: -->dst_put_ci FAILED !\n", __FUNCTION__);
157 return -1;
158 }
159 if (verbose > 1) {
160 dprintk("%s: -->dst_put_ci SUCCESS !\n", __FUNCTION__);
161
162 dprintk("%s: ================================ CI Module Application Info ======================================\n", __FUNCTION__);
163 dprintk("%s: Application Type=[%d], Application Vendor=[%d], Vendor Code=[%d]\n%s: Application info=[%s]\n",
164 __FUNCTION__, state->messages[7], (state->messages[8] << 8) | state->messages[9],
165 (state->messages[10] << 8) | state->messages[11], __FUNCTION__, (char *)(&state->messages[12]));
166 dprintk("%s: ==================================================================================================\n", __FUNCTION__);
167 }
168
169 return 0;
170 }
171
172 static int ca_get_slot_caps(struct dst_state *state, struct ca_caps *p_ca_caps, void *arg)
173 {
174 int i;
175 u8 slot_cap[256];
176 static u8 slot_command[8] = {0x07, 0x40, 0x02, 0x00, 0x02, 0x00, 0x00, 0xff};
177
178 put_checksum(&slot_command[0], slot_command[0]);
179 if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_cap, GET_REPLY)) < 0) {
180 dprintk("%s: -->dst_put_ci FAILED !\n", __FUNCTION__);
181 return -1;
182 }
183 if (verbose > 1)
184 dprintk("%s: -->dst_put_ci SUCCESS !\n", __FUNCTION__);
185
186 /* Will implement the rest soon */
187
188 if (verbose > 1) {
189 dprintk("%s: Slot cap = [%d]\n", __FUNCTION__, slot_cap[7]);
190 dprintk("===================================\n");
191 for (i = 0; i < 8; i++)
192 dprintk(" %d", slot_cap[i]);
193 dprintk("\n");
194 }
195
196 p_ca_caps->slot_num = 1;
197 p_ca_caps->slot_type = 1;
198 p_ca_caps->descr_num = slot_cap[7];
199 p_ca_caps->descr_type = 1;
200
201
202 if (copy_to_user((struct ca_caps *)arg, p_ca_caps, sizeof (struct ca_caps))) {
203 return -EFAULT;
204 }
205
206 return 0;
207 }
208
209 /* Need some more work */
210 static int ca_get_slot_descr(struct dst_state *state, struct ca_msg *p_ca_message, void *arg)
211 {
212 return -EOPNOTSUPP;
213 }
214
215
216 static int ca_get_slot_info(struct dst_state *state, struct ca_slot_info *p_ca_slot_info, void *arg)
217 {
218 int i;
219 static u8 slot_command[8] = {0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff};
220
221 u8 *slot_info = state->rxbuffer;
222
223 put_checksum(&slot_command[0], 7);
224 if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_info, GET_REPLY)) < 0) {
225 dprintk("%s: -->dst_put_ci FAILED !\n", __FUNCTION__);
226 return -1;
227 }
228 if (verbose > 1)
229 dprintk("%s: -->dst_put_ci SUCCESS !\n", __FUNCTION__);
230
231 /* Will implement the rest soon */
232
233 if (verbose > 1) {
234 dprintk("%s: Slot info = [%d]\n", __FUNCTION__, slot_info[3]);
235 dprintk("===================================\n");
236 for (i = 0; i < 8; i++)
237 dprintk(" %d", slot_info[i]);
238 dprintk("\n");
239 }
240
241 if (slot_info[4] & 0x80) {
242 p_ca_slot_info->flags = CA_CI_MODULE_PRESENT;
243 p_ca_slot_info->num = 1;
244 p_ca_slot_info->type = CA_CI;
245 }
246 else if (slot_info[4] & 0x40) {
247 p_ca_slot_info->flags = CA_CI_MODULE_READY;
248 p_ca_slot_info->num = 1;
249 p_ca_slot_info->type = CA_CI;
250 }
251 else {
252 p_ca_slot_info->flags = 0;
253 }
254
255 if (copy_to_user((struct ca_slot_info *)arg, p_ca_slot_info, sizeof (struct ca_slot_info))) {
256 return -EFAULT;
257 }
258
259 return 0;
260 }
261
262
263
264
265 static int ca_get_message(struct dst_state *state, struct ca_msg *p_ca_message, void *arg)
266 {
267 u8 i = 0;
268 u32 command = 0;
269
270 if (copy_from_user(p_ca_message, (void *)arg, sizeof (struct ca_msg)))
271 return -EFAULT;
272
273
274 if (p_ca_message->msg) {
275 if (verbose > 3)
276 dprintk("Message = [%02x %02x %02x]\n", p_ca_message->msg[0], p_ca_message->msg[1], p_ca_message->msg[2]);
277
278 for (i = 0; i < 3; i++) {
279 command = command | p_ca_message->msg[i];
280 if (i < 2)
281 command = command << 8;
282 }
283 if (verbose > 3)
284 dprintk("%s:Command=[0x%x]\n", __FUNCTION__, command);
285
286 switch (command) {
287 case CA_APP_INFO:
288 memcpy(p_ca_message->msg, state->messages, 128);
289 if (copy_to_user((void *)arg, p_ca_message, sizeof (struct ca_msg)) )
290 return -EFAULT;
291 break;
292 }
293 }
294
295 return 0;
296 }
297
298 static int handle_en50221_tag(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer)
299 {
300 if (state->dst_hw_cap & DST_TYPE_HAS_SESSION) {
301 hw_buffer->msg[2] = p_ca_message->msg[1]; /* MSB */
302 hw_buffer->msg[3] = p_ca_message->msg[2]; /* LSB */
303 }
304 else {
305 hw_buffer->msg[2] = 0x03;
306 hw_buffer->msg[3] = 0x00;
307 }
308 return 0;
309 }
310
311 static int debug_8820_buffer(struct ca_msg *hw_buffer)
312 {
313 unsigned int i;
314
315 dprintk("%s:Debug=[", __FUNCTION__);
316 for (i = 0; i < (hw_buffer->msg[0] + 1); i++)
317 dprintk(" %02x", hw_buffer->msg[i]);
318 dprintk("]\n");
319
320 return 0;
321 }
322
323 static int write_to_8820(struct dst_state *state, struct ca_msg *hw_buffer, u8 reply)
324 {
325 if ((dst_put_ci(state, hw_buffer->msg, (hw_buffer->length + 1), hw_buffer->msg, reply)) < 0) {
326 dprintk("%s: DST-CI Command failed.\n", __FUNCTION__);
327 dprintk("%s: Resetting DST.\n", __FUNCTION__);
328 rdc_reset_state(state);
329 return -1;
330 }
331 if (verbose > 2)
332 dprintk("%s: DST-CI Command succes.\n", __FUNCTION__);
333
334 return 0;
335 }
336
337
338 static int ca_set_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u8 reply, u8 query)
339 {
340 u32 hw_offset, buf_offset, i, k;
341 u32 program_info_length = 0, es_info_length = 0, length = 0, words = 0;
342 u8 found_prog_ca_desc = 0, found_stream_ca_desc = 0, error_condition = 0, hw_buffer_length = 0;
343
344 if (verbose > 3)
345 dprintk("%s, p_ca_message length %d (0x%x)\n", __FUNCTION__,p_ca_message->length,p_ca_message->length );
346
347 handle_en50221_tag(state, p_ca_message, hw_buffer); /* EN50221 tag */
348
349 /* Handle the length field (variable) */
350 if (!(p_ca_message->msg[3] & 0x80)) { /* Length = 1 */
351 length = p_ca_message->msg[3] & 0x7f;
352 words = 0; /* domi's suggestion */
353 }
354 else { /* Length = words */
355 words = p_ca_message->msg[3] & 0x7f;
356 for (i = 0; i < words; i++) {
357 length = length << 8;
358 length = length | p_ca_message->msg[4 + i];
359 }
360 }
361 if (verbose > 4) {
362 dprintk("%s:Length=[%d (0x%x)], Words=[%d]\n", __FUNCTION__, length,length, words);
363
364 /* Debug Input string */
365 for (i = 0; i < length; i++)
366 dprintk(" %02x", p_ca_message->msg[i]);
367 dprintk("]\n");
368 }
369
370 hw_offset = 7;
371 buf_offset = words + 4;
372
373 /* Program Header */
374 if (verbose > 4)
375 dprintk("\n%s:Program Header=[", __FUNCTION__);
376 for (i = 0; i < 6; i++) {
377 hw_buffer->msg[hw_offset] = p_ca_message->msg[buf_offset];
378 if (verbose > 4)
379 dprintk(" %02x", p_ca_message->msg[buf_offset]);
380 hw_offset++, buf_offset++, hw_buffer_length++;
381 }
382 if (verbose > 4)
383 dprintk("]\n");
384
385 program_info_length = 0;
386 program_info_length = (((program_info_length | p_ca_message->msg[words + 8]) & 0x0f) << 8) | p_ca_message->msg[words + 9];
387 if (verbose > 4)
388 dprintk("%s:Program info Length=[%d][%02x], hw_offset=[%d], buf_offset=[%d] \n",
389 __FUNCTION__, program_info_length, program_info_length, hw_offset, buf_offset);
390
391 if (program_info_length && (program_info_length < 256)) { /* If program_info_length */
392 hw_buffer->msg[11] = hw_buffer->msg[11] & 0x0f; /* req only 4 bits */
393 hw_buffer->msg[12] = hw_buffer->msg[12] + 1; /* increment! ASIC bug! */
394
395 if (p_ca_message->msg[buf_offset + 1] == 0x09) { /* Check CA descriptor */
396 found_prog_ca_desc = 1;
397 if (verbose > 4)
398 dprintk("%s: Found CA descriptor @ Program level\n", __FUNCTION__);
399 }
400
401 if (found_prog_ca_desc) { /* Command only if CA descriptor */
402 hw_buffer->msg[13] = p_ca_message->msg[buf_offset]; /* CA PMT command ID */
403 hw_offset++, buf_offset++, hw_buffer_length++;
404 }
405
406 /* Program descriptors */
407 if (verbose > 4) {
408 dprintk("%s:**********>buf_offset=[%d], hw_offset=[%d]\n", __FUNCTION__, buf_offset, hw_offset);
409 dprintk("%s:Program descriptors=[", __FUNCTION__);
410 }
411 while (program_info_length && !error_condition) { /* Copy prog descriptors */
412 if (program_info_length > p_ca_message->length) { /* Error situation */
413 dprintk ("%s:\"WARNING\" Length error, line=[%d], prog_info_length=[%d]\n",
414 __FUNCTION__, __LINE__, program_info_length);
415 dprintk("%s:\"WARNING\" Bailing out of possible loop\n", __FUNCTION__);
416 error_condition = 1;
417 break;
418 }
419
420 hw_buffer->msg[hw_offset] = p_ca_message->msg[buf_offset];
421 dprintk(" %02x", p_ca_message->msg[buf_offset]);
422 hw_offset++, buf_offset++, hw_buffer_length++, program_info_length--;
423 }
424 if (verbose > 4) {
425 dprintk("]\n");
426 dprintk("%s:**********>buf_offset=[%d], hw_offset=[%d]\n", __FUNCTION__, buf_offset, hw_offset);
427 }
428 if (found_prog_ca_desc) {
429 if (!reply) {
430 hw_buffer->msg[13] = 0x01; /* OK descrambling */
431 if (verbose > 1)
432 dprintk("CA PMT Command = OK Descrambling\n");
433 }
434 else {
435 hw_buffer->msg[13] = 0x02; /* Ok MMI */
436 if (verbose > 1)
437 dprintk("CA PMT Command = Ok MMI\n");
438 }
439 if (query) {
440 hw_buffer->msg[13] = 0x03; /* Query */
441 if (verbose > 1)
442 dprintk("CA PMT Command = CA PMT query\n");
443 }
444 }
445 }
446 else {
447 hw_buffer->msg[11] = hw_buffer->msg[11] & 0xf0; /* Don't write to ASIC */
448 hw_buffer->msg[12] = hw_buffer->msg[12] = 0x00;
449 }
450 if (verbose > 4)
451 dprintk("%s:**********>p_ca_message->length=[%d], buf_offset=[%d], hw_offset=[%d]\n",
452 __FUNCTION__, p_ca_message->length, buf_offset, hw_offset);
453
454 while ((buf_offset < p_ca_message->length) && !error_condition) {
455 /* Bail out in case of an indefinite loop */
456 if ((es_info_length > p_ca_message->length) || (buf_offset > p_ca_message->length)) {
457 dprintk("%s:\"WARNING\" Length error, line=[%d], prog_info_length=[%d], buf_offset=[%d]\n",
458 __FUNCTION__, __LINE__, program_info_length, buf_offset);
459
460 dprintk("%s:\"WARNING\" Bailing out of possible loop\n", __FUNCTION__);
461 error_condition = 1;
462 break;
463 }
464
465 /* Stream Header */
466
467 for (k = 0; k < 5; k++) {
468 hw_buffer->msg[hw_offset + k] = p_ca_message->msg[buf_offset + k];
469 }
470
471 es_info_length = 0;
472 es_info_length = (es_info_length | (p_ca_message->msg[buf_offset + 3] & 0x0f)) << 8 | p_ca_message->msg[buf_offset + 4];
473
474 if (verbose > 4) {
475 dprintk("\n%s:----->Stream header=[%02x %02x %02x %02x %02x]\n", __FUNCTION__,
476 p_ca_message->msg[buf_offset + 0], p_ca_message->msg[buf_offset + 1],
477 p_ca_message->msg[buf_offset + 2], p_ca_message->msg[buf_offset + 3],
478 p_ca_message->msg[buf_offset + 4]);
479
480 dprintk("%s:----->Stream type=[%02x], es length=[%d (0x%x)], Chars=[%02x] [%02x], buf_offset=[%d]\n", __FUNCTION__,
481 p_ca_message->msg[buf_offset + 0], es_info_length, es_info_length,
482 p_ca_message->msg[buf_offset + 3], p_ca_message->msg[buf_offset + 4], buf_offset);
483 }
484
485 hw_buffer->msg[hw_offset + 3] &= 0x0f; /* req only 4 bits */
486
487 if (found_prog_ca_desc) {
488 hw_buffer->msg[hw_offset + 3] = 0x00;
489 hw_buffer->msg[hw_offset + 4] = 0x00;
490 }
491
492 hw_offset += 5, buf_offset += 5, hw_buffer_length += 5;
493
494 /* Check for CA descriptor */
495 if (p_ca_message->msg[buf_offset + 1] == 0x09) {
496 if (verbose > 4)
497 dprintk("%s:Found CA descriptor @ Stream level\n", __FUNCTION__);
498 found_stream_ca_desc = 1;
499 }
500
501 /* ES descriptors */
502
503 if (es_info_length && !error_condition && !found_prog_ca_desc && found_stream_ca_desc) {
504 // if (!ca_pmt_done) {
505 hw_buffer->msg[hw_offset] = p_ca_message->msg[buf_offset]; /* CA PMT cmd(es) */
506 if (verbose > 4)
507 printk("%s:----->CA PMT Command ID=[%02x]\n", __FUNCTION__, p_ca_message->msg[buf_offset]);
508 // hw_offset++, buf_offset++, hw_buffer_length++, es_info_length--, ca_pmt_done = 1;
509 hw_offset++, buf_offset++, hw_buffer_length++, es_info_length--;
510 // }
511 if (verbose > 4)
512 dprintk("%s:----->ES descriptors=[", __FUNCTION__);
513
514 while (es_info_length && !error_condition) { /* ES descriptors */
515 if ((es_info_length > p_ca_message->length) || (buf_offset > p_ca_message->length)) {
516 if (verbose > 4) {
517 dprintk("%s:\"WARNING\" ES Length error, line=[%d], es_info_length=[%d], buf_offset=[%d]\n",
518 __FUNCTION__, __LINE__, es_info_length, buf_offset);
519
520 dprintk("%s:\"WARNING\" Bailing out of possible loop\n", __FUNCTION__);
521 }
522 error_condition = 1;
523 break;
524 }
525
526 hw_buffer->msg[hw_offset] = p_ca_message->msg[buf_offset];
527 if (verbose > 3)
528 dprintk("%02x ", hw_buffer->msg[hw_offset]);
529 hw_offset++, buf_offset++, hw_buffer_length++, es_info_length--;
530 }
531 found_stream_ca_desc = 0; /* unset for new streams */
532 dprintk("]\n");
533 }
534 }
535
536 /* MCU Magic words */
537
538 hw_buffer_length += 7;
539 hw_buffer->msg[0] = hw_buffer_length;
540 hw_buffer->msg[1] = 64;
541 hw_buffer->msg[4] = 3;
542 hw_buffer->msg[5] = hw_buffer->msg[0] - 7;
543 hw_buffer->msg[6] = 0;
544
545
546 /* Fix length */
547 hw_buffer->length = hw_buffer->msg[0];
548
549 put_checksum(&hw_buffer->msg[0], hw_buffer->msg[0]);
550 /* Do the actual write */
551 if (verbose > 4) {
552 dprintk("%s:======================DEBUGGING================================\n", __FUNCTION__);
553 dprintk("%s: Actual Length=[%d]\n", __FUNCTION__, hw_buffer_length);
554 }
555 /* Only for debugging! */
556 if (verbose > 2)
557 debug_8820_buffer(hw_buffer);
558 if (verbose > 3)
559 dprintk("%s: Reply = [%d]\n", __FUNCTION__, reply);
560 write_to_8820(state, hw_buffer, reply);
561
562 return 0;
563 }
564
565 /* Board supports CA PMT reply ? */
566 static int dst_check_ca_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer)
567 {
568 int ca_pmt_reply_test = 0;
569
570 /* Do test board */
571 /* Not there yet but soon */
572
573
574 /* CA PMT Reply capable */
575 if (ca_pmt_reply_test) {
576 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 1, GET_REPLY)) < 0) {
577 dprintk("%s: ca_set_pmt.. failed !\n", __FUNCTION__);
578 return -1;
579 }
580
581 /* Process CA PMT Reply */
582 /* will implement soon */
583 dprintk("%s: Not there yet\n", __FUNCTION__);
584 }
585 /* CA PMT Reply not capable */
586 if (!ca_pmt_reply_test) {
587 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, NO_REPLY)) < 0) {
588 dprintk("%s: ca_set_pmt.. failed !\n", __FUNCTION__);
589 return -1;
590 }
591 if (verbose > 3)
592 dprintk("%s: ca_set_pmt.. success !\n", __FUNCTION__);
593 /* put a dummy message */
594
595 }
596 return 0;
597 }
598
599 static int ca_send_message(struct dst_state *state, struct ca_msg *p_ca_message, void *arg)
600 {
601 int i = 0;
602 unsigned int ca_message_header_len;
603
604 u32 command = 0;
605 struct ca_msg *hw_buffer;
606
607 if ((hw_buffer = (struct ca_msg *) kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) {
608 printk("%s: Memory allocation failure\n", __FUNCTION__);
609 return -ENOMEM;
610 }
611 if (verbose > 3)
612 dprintk("%s\n", __FUNCTION__);
613
614 if (copy_from_user(p_ca_message, (void *)arg, sizeof (struct ca_msg)))
615 return -EFAULT;
616
617 if (p_ca_message->msg) {
618 ca_message_header_len = p_ca_message->length; /* Restore it back when you are done */
619 /* EN50221 tag */
620 command = 0;
621
622 for (i = 0; i < 3; i++) {
623 command = command | p_ca_message->msg[i];
624 if (i < 2)
625 command = command << 8;
626 }
627 if (verbose > 3)
628 dprintk("%s:Command=[0x%x]\n", __FUNCTION__, command);
629
630 switch (command) {
631 case CA_PMT:
632 if (verbose > 3)
633 dprintk("Command = SEND_CA_PMT\n");
634 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, 0)) < 0) {
635 dprintk("%s: -->CA_PMT Failed !\n", __FUNCTION__);
636 return -1;
637 }
638 if (verbose > 3)
639 dprintk("%s: -->CA_PMT Success !\n", __FUNCTION__);
640 // retval = dummy_set_pmt(state, p_ca_message, hw_buffer, 0, 0);
641
642 break;
643
644 case CA_PMT_REPLY:
645 if (verbose > 3)
646 dprintk("Command = CA_PMT_REPLY\n");
647 /* Have to handle the 2 basic types of cards here */
648 if ((dst_check_ca_pmt(state, p_ca_message, hw_buffer)) < 0) {
649 dprintk("%s: -->CA_PMT_REPLY Failed !\n", __FUNCTION__);
650 return -1;
651 }
652 if (verbose > 3)
653 dprintk("%s: -->CA_PMT_REPLY Success !\n", __FUNCTION__);
654
655 /* Certain boards do behave different ? */
656 // retval = ca_set_pmt(state, p_ca_message, hw_buffer, 1, 1);
657
658 case CA_APP_INFO_ENQUIRY: // only for debugging
659 if (verbose > 3)
660 dprintk("%s: Getting Cam Application information\n", __FUNCTION__);
661
662 if ((ca_get_app_info(state)) < 0) {
663 dprintk("%s: -->CA_APP_INFO_ENQUIRY Failed !\n", __FUNCTION__);
664 return -1;
665 }
666 if (verbose > 3)
667 printk("%s: -->CA_APP_INFO_ENQUIRY Success !\n", __FUNCTION__);
668
669 break;
670 }
671 }
672 return 0;
673 }
674
675 static int dst_ca_ioctl(struct inode *inode, struct file *file, unsigned int cmd, void *arg)
676 {
677 struct dvb_device* dvbdev = (struct dvb_device*) file->private_data;
678 struct dst_state* state = (struct dst_state*) dvbdev->priv;
679 struct ca_slot_info *p_ca_slot_info;
680 struct ca_caps *p_ca_caps;
681 struct ca_msg *p_ca_message;
682
683 if ((p_ca_message = (struct ca_msg *) kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) {
684 printk("%s: Memory allocation failure\n", __FUNCTION__);
685 return -ENOMEM;
686 }
687
688 if ((p_ca_slot_info = (struct ca_slot_info *) kmalloc(sizeof (struct ca_slot_info), GFP_KERNEL)) == NULL) {
689 printk("%s: Memory allocation failure\n", __FUNCTION__);
690 return -ENOMEM;
691 }
692
693 if ((p_ca_caps = (struct ca_caps *) kmalloc(sizeof (struct ca_caps), GFP_KERNEL)) == NULL) {
694 printk("%s: Memory allocation failure\n", __FUNCTION__);
695 return -ENOMEM;
696 }
697
698 /* We have now only the standard ioctl's, the driver is upposed to handle internals. */
699 switch (cmd) {
700 case CA_SEND_MSG:
701 if (verbose > 1)
702 dprintk("%s: Sending message\n", __FUNCTION__);
703 if ((ca_send_message(state, p_ca_message, arg)) < 0) {
704 dprintk("%s: -->CA_SEND_MSG Failed !\n", __FUNCTION__);
705 return -1;
706 }
707
708 break;
709
710 case CA_GET_MSG:
711 if (verbose > 1)
712 dprintk("%s: Getting message\n", __FUNCTION__);
713 if ((ca_get_message(state, p_ca_message, arg)) < 0) {
714 dprintk("%s: -->CA_GET_MSG Failed !\n", __FUNCTION__);
715 return -1;
716 }
717 if (verbose > 1)
718 dprintk("%s: -->CA_GET_MSG Success !\n", __FUNCTION__);
719
720 break;
721
722 case CA_RESET:
723 if (verbose > 1)
724 dprintk("%s: Resetting DST\n", __FUNCTION__);
725 dst_error_bailout(state);
726 msleep(4000);
727
728 break;
729
730 case CA_GET_SLOT_INFO:
731 if (verbose > 1)
732 dprintk("%s: Getting Slot info\n", __FUNCTION__);
733 if ((ca_get_slot_info(state, p_ca_slot_info, arg)) < 0) {
734 dprintk("%s: -->CA_GET_SLOT_INFO Failed !\n", __FUNCTION__);
735 return -1;
736 }
737 if (verbose > 1)
738 dprintk("%s: -->CA_GET_SLOT_INFO Success !\n", __FUNCTION__);
739
740 break;
741
742 case CA_GET_CAP:
743 if (verbose > 1)
744 dprintk("%s: Getting Slot capabilities\n", __FUNCTION__);
745 if ((ca_get_slot_caps(state, p_ca_caps, arg)) < 0) {
746 dprintk("%s: -->CA_GET_CAP Failed !\n", __FUNCTION__);
747 return -1;
748 }
749 if (verbose > 1)
750 dprintk("%s: -->CA_GET_CAP Success !\n", __FUNCTION__);
751
752 break;
753
754 case CA_GET_DESCR_INFO:
755 if (verbose > 1)
756 dprintk("%s: Getting descrambler description\n", __FUNCTION__);
757 if ((ca_get_slot_descr(state, p_ca_message, arg)) < 0) {
758 dprintk("%s: -->CA_GET_DESCR_INFO Failed !\n", __FUNCTION__);
759 return -1;
760 }
761 if (verbose > 1)
762 dprintk("%s: -->CA_GET_DESCR_INFO Success !\n", __FUNCTION__);
763
764 break;
765
766 case CA_SET_DESCR:
767 if (verbose > 1)
768 dprintk("%s: Setting descrambler\n", __FUNCTION__);
769 if ((ca_set_slot_descr()) < 0) {
770 dprintk("%s: -->CA_SET_DESCR Failed !\n", __FUNCTION__);
771 return -1;
772 }
773 if (verbose > 1)
774 dprintk("%s: -->CA_SET_DESCR Success !\n", __FUNCTION__);
775
776 break;
777
778 case CA_SET_PID:
779 if (verbose > 1)
780 dprintk("%s: Setting PID\n", __FUNCTION__);
781 if ((ca_set_pid()) < 0) {
782 dprintk("%s: -->CA_SET_PID Failed !\n", __FUNCTION__);
783 return -1;
784 }
785 if (verbose > 1)
786 dprintk("%s: -->CA_SET_PID Success !\n", __FUNCTION__);
787
788 default:
789 return -EOPNOTSUPP;
790 };
791
792 return 0;
793 }
794
795 static int dst_ca_open(struct inode *inode, struct file *file)
796 {
797 if (verbose > 4)
798 dprintk("%s:Device opened [%p]\n", __FUNCTION__, file);
799 try_module_get(THIS_MODULE);
800
801 return 0;
802 }
803
804 static int dst_ca_release(struct inode *inode, struct file *file)
805 {
806 if (verbose > 4)
807 dprintk("%s:Device closed.\n", __FUNCTION__);
808 module_put(THIS_MODULE);
809
810 return 0;
811 }
812
813 static int dst_ca_read(struct file *file, char __user * buffer, size_t length, loff_t * offset)
814 {
815 int bytes_read = 0;
816
817 if (verbose > 4)
818 dprintk("%s:Device read.\n", __FUNCTION__);
819
820 return bytes_read;
821 }
822
823 static int dst_ca_write(struct file *file, const char __user * buffer, size_t length, loff_t * offset)
824 {
825 if (verbose > 4)
826 dprintk("%s:Device write.\n", __FUNCTION__);
827
828 return 0;
829 }
830
831 static struct file_operations dst_ca_fops = {
832 .owner = THIS_MODULE,
833 .ioctl = (void *)dst_ca_ioctl,
834 .open = dst_ca_open,
835 .release = dst_ca_release,
836 .read = dst_ca_read,
837 .write = dst_ca_write
838 };
839
840 static struct dvb_device dvbdev_ca = {
841 .priv = NULL,
842 .users = 1,
843 .readers = 1,
844 .writers = 1,
845 .fops = &dst_ca_fops
846 };
847
848 int dst_ca_attach(struct dst_state *dst, struct dvb_adapter *dvb_adapter)
849 {
850 struct dvb_device *dvbdev;
851 if (verbose > 4)
852 dprintk("%s:registering DST-CA device\n", __FUNCTION__);
853 dvb_register_device(dvb_adapter, &dvbdev, &dvbdev_ca, dst, DVB_DEVICE_CA);
854 return 0;
855 }
856
857 EXPORT_SYMBOL(dst_ca_attach);
858
859 MODULE_DESCRIPTION("DST DVB-S/T/C Combo CA driver");
860 MODULE_AUTHOR("Manu Abraham");
861 MODULE_LICENSE("GPL");
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