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21#include <linux/kernel.h>
22#include <linux/module.h>
23#include <linux/slab.h>
24#include <linux/init.h>
25#include <linux/smp_lock.h>
26#include <linux/string.h>
27#include <linux/dvb/ca.h>
28#include "dvbdev.h"
29#include "dvb_frontend.h"
30#include "dst_ca.h"
31#include "dst_common.h"
32
33#define DST_CA_ERROR 0
34#define DST_CA_NOTICE 1
35#define DST_CA_INFO 2
36#define DST_CA_DEBUG 3
37
38#define dprintk(x, y, z, format, arg...) do { \
39 if (z) { \
40 if ((x > DST_CA_ERROR) && (x > y)) \
41 printk(KERN_ERR "%s: " format "\n", __func__ , ##arg); \
42 else if ((x > DST_CA_NOTICE) && (x > y)) \
43 printk(KERN_NOTICE "%s: " format "\n", __func__ , ##arg); \
44 else if ((x > DST_CA_INFO) && (x > y)) \
45 printk(KERN_INFO "%s: " format "\n", __func__ , ##arg); \
46 else if ((x > DST_CA_DEBUG) && (x > y)) \
47 printk(KERN_DEBUG "%s: " format "\n", __func__ , ##arg); \
48 } else { \
49 if (x > y) \
50 printk(format, ## arg); \
51 } \
52} while(0)
53
54
55static unsigned int verbose = 5;
56module_param(verbose, int, 0644);
57MODULE_PARM_DESC(verbose, "verbose startup messages, default is 1 (yes)");
58
59
60static int ca_set_slot_descr(void)
61{
62
63 return -EOPNOTSUPP;
64}
65
66
67static int ca_set_pid(void)
68{
69
70 return -EOPNOTSUPP;
71}
72
73static void put_command_and_length(u8 *data, int command, int length)
74{
75 data[0] = (command >> 16) & 0xff;
76 data[1] = (command >> 8) & 0xff;
77 data[2] = command & 0xff;
78 data[3] = length;
79}
80
81static void put_checksum(u8 *check_string, int length)
82{
83 dprintk(verbose, DST_CA_DEBUG, 1, " Computing string checksum.");
84 dprintk(verbose, DST_CA_DEBUG, 1, " -> string length : 0x%02x", length);
85 check_string[length] = dst_check_sum (check_string, length);
86 dprintk(verbose, DST_CA_DEBUG, 1, " -> checksum : 0x%02x", check_string[length]);
87}
88
89static int dst_ci_command(struct dst_state* state, u8 * data, u8 *ca_string, u8 len, int read)
90{
91 u8 reply;
92
93 mutex_lock(&state->dst_mutex);
94 dst_comm_init(state);
95 msleep(65);
96
97 if (write_dst(state, data, len)) {
98 dprintk(verbose, DST_CA_INFO, 1, " Write not successful, trying to recover");
99 dst_error_recovery(state);
100 goto error;
101 }
102 if ((dst_pio_disable(state)) < 0) {
103 dprintk(verbose, DST_CA_ERROR, 1, " DST PIO disable failed.");
104 goto error;
105 }
106 if (read_dst(state, &reply, GET_ACK) < 0) {
107 dprintk(verbose, DST_CA_INFO, 1, " Read not successful, trying to recover");
108 dst_error_recovery(state);
109 goto error;
110 }
111 if (read) {
112 if (! dst_wait_dst_ready(state, LONG_DELAY)) {
113 dprintk(verbose, DST_CA_NOTICE, 1, " 8820 not ready");
114 goto error;
115 }
116 if (read_dst(state, ca_string, 128) < 0) {
117 dprintk(verbose, DST_CA_INFO, 1, " Read not successful, trying to recover");
118 dst_error_recovery(state);
119 goto error;
120 }
121 }
122 mutex_unlock(&state->dst_mutex);
123 return 0;
124
125error:
126 mutex_unlock(&state->dst_mutex);
127 return -EIO;
128}
129
130
131static int dst_put_ci(struct dst_state *state, u8 *data, int len, u8 *ca_string, int read)
132{
133 u8 dst_ca_comm_err = 0;
134
135 while (dst_ca_comm_err < RETRIES) {
136 dprintk(verbose, DST_CA_NOTICE, 1, " Put Command");
137 if (dst_ci_command(state, data, ca_string, len, read)) {
138 dst_error_recovery(state);
139 dst_ca_comm_err++;
140 } else {
141 break;
142 }
143 }
144
145 if(dst_ca_comm_err == RETRIES)
146 return -1;
147
148 return 0;
149}
150
151
152
153static int ca_get_app_info(struct dst_state *state)
154{
155 int length, str_length;
156 static u8 command[8] = {0x07, 0x40, 0x01, 0x00, 0x01, 0x00, 0x00, 0xff};
157
158 put_checksum(&command[0], command[0]);
159 if ((dst_put_ci(state, command, sizeof(command), state->messages, GET_REPLY)) < 0) {
160 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
161 return -1;
162 }
163 dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
164 dprintk(verbose, DST_CA_INFO, 1, " ================================ CI Module Application Info ======================================");
165 dprintk(verbose, DST_CA_INFO, 1, " Application Type=[%d], Application Vendor=[%d], Vendor Code=[%d]\n%s: Application info=[%s]",
166 state->messages[7], (state->messages[8] << 8) | state->messages[9],
167 (state->messages[10] << 8) | state->messages[11], __func__, (char *)(&state->messages[12]));
168 dprintk(verbose, DST_CA_INFO, 1, " ==================================================================================================");
169
170
171 length = state->messages[5];
172 str_length = length - 6;
173 if (str_length < 0) {
174 str_length = 0;
175 dprintk(verbose, DST_CA_ERROR, 1, "Invalid string length returned in ca_get_app_info(). Recovering.");
176 }
177
178
179 put_command_and_length(&state->messages[0], CA_APP_INFO, length);
180
181
182 memcpy(&state->messages[4], &state->messages[7], 5);
183
184
185 state->messages[9] = str_length;
186 memcpy(&state->messages[10], &state->messages[12], str_length);
187
188 return 0;
189}
190
191static int ca_get_ca_info(struct dst_state *state)
192{
193 int srcPtr, dstPtr, i, num_ids;
194 static u8 slot_command[8] = {0x07, 0x40, 0x00, 0x00, 0x02, 0x00, 0x00, 0xff};
195 const int in_system_id_pos = 8, out_system_id_pos = 4, in_num_ids_pos = 7;
196
197 put_checksum(&slot_command[0], slot_command[0]);
198 if ((dst_put_ci(state, slot_command, sizeof (slot_command), state->messages, GET_REPLY)) < 0) {
199 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
200 return -1;
201 }
202 dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
203
204
205 dprintk(verbose, DST_CA_INFO, 0, " DST data = [");
206 for (i = 0; i < state->messages[0] + 1; i++) {
207 dprintk(verbose, DST_CA_INFO, 0, " 0x%02x", state->messages[i]);
208 }
209 dprintk(verbose, DST_CA_INFO, 0, "]\n");
210
211
212 num_ids = state->messages[in_num_ids_pos];
213 if (num_ids >= 100) {
214 num_ids = 100;
215 dprintk(verbose, DST_CA_ERROR, 1, "Invalid number of ids (>100). Recovering.");
216 }
217 put_command_and_length(&state->messages[0], CA_INFO, num_ids * 2);
218
219 dprintk(verbose, DST_CA_INFO, 0, " CA_INFO = [");
220 srcPtr = in_system_id_pos;
221 dstPtr = out_system_id_pos;
222 for(i = 0; i < num_ids; i++) {
223 dprintk(verbose, DST_CA_INFO, 0, " 0x%02x%02x", state->messages[srcPtr + 0], state->messages[srcPtr + 1]);
224
225 state->messages[dstPtr + 0] = state->messages[srcPtr + 0];
226 state->messages[dstPtr + 1] = state->messages[srcPtr + 1];
227 srcPtr += 2;
228 dstPtr += 2;
229 }
230 dprintk(verbose, DST_CA_INFO, 0, "]\n");
231
232 return 0;
233}
234
235static int ca_get_slot_caps(struct dst_state *state, struct ca_caps *p_ca_caps, void __user *arg)
236{
237 int i;
238 u8 slot_cap[256];
239 static u8 slot_command[8] = {0x07, 0x40, 0x02, 0x00, 0x02, 0x00, 0x00, 0xff};
240
241 put_checksum(&slot_command[0], slot_command[0]);
242 if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_cap, GET_REPLY)) < 0) {
243 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
244 return -1;
245 }
246 dprintk(verbose, DST_CA_NOTICE, 1, " -->dst_put_ci SUCCESS !");
247
248
249
250 dprintk(verbose, DST_CA_INFO, 1, " Slot cap = [%d]", slot_cap[7]);
251 dprintk(verbose, DST_CA_INFO, 0, "===================================\n");
252 for (i = 0; i < slot_cap[0] + 1; i++)
253 dprintk(verbose, DST_CA_INFO, 0, " %d", slot_cap[i]);
254 dprintk(verbose, DST_CA_INFO, 0, "\n");
255
256 p_ca_caps->slot_num = 1;
257 p_ca_caps->slot_type = 1;
258 p_ca_caps->descr_num = slot_cap[7];
259 p_ca_caps->descr_type = 1;
260
261 if (copy_to_user(arg, p_ca_caps, sizeof (struct ca_caps)))
262 return -EFAULT;
263
264 return 0;
265}
266
267
268static int ca_get_slot_descr(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
269{
270 return -EOPNOTSUPP;
271}
272
273
274static int ca_get_slot_info(struct dst_state *state, struct ca_slot_info *p_ca_slot_info, void __user *arg)
275{
276 int i;
277 static u8 slot_command[8] = {0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff};
278
279 u8 *slot_info = state->messages;
280
281 put_checksum(&slot_command[0], 7);
282 if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_info, GET_REPLY)) < 0) {
283 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
284 return -1;
285 }
286 dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
287
288
289
290 dprintk(verbose, DST_CA_INFO, 1, " Slot info = [%d]", slot_info[3]);
291 dprintk(verbose, DST_CA_INFO, 0, "===================================\n");
292 for (i = 0; i < 8; i++)
293 dprintk(verbose, DST_CA_INFO, 0, " %d", slot_info[i]);
294 dprintk(verbose, DST_CA_INFO, 0, "\n");
295
296 if (slot_info[4] & 0x80) {
297 p_ca_slot_info->flags = CA_CI_MODULE_PRESENT;
298 p_ca_slot_info->num = 1;
299 p_ca_slot_info->type = CA_CI;
300 } else if (slot_info[4] & 0x40) {
301 p_ca_slot_info->flags = CA_CI_MODULE_READY;
302 p_ca_slot_info->num = 1;
303 p_ca_slot_info->type = CA_CI;
304 } else
305 p_ca_slot_info->flags = 0;
306
307 if (copy_to_user(arg, p_ca_slot_info, sizeof (struct ca_slot_info)))
308 return -EFAULT;
309
310 return 0;
311}
312
313
314static int ca_get_message(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
315{
316 u8 i = 0;
317 u32 command = 0;
318
319 if (copy_from_user(p_ca_message, arg, sizeof (struct ca_msg)))
320 return -EFAULT;
321
322 if (p_ca_message->msg) {
323 dprintk(verbose, DST_CA_NOTICE, 1, " Message = [%02x %02x %02x]", p_ca_message->msg[0], p_ca_message->msg[1], p_ca_message->msg[2]);
324
325 for (i = 0; i < 3; i++) {
326 command = command | p_ca_message->msg[i];
327 if (i < 2)
328 command = command << 8;
329 }
330 dprintk(verbose, DST_CA_NOTICE, 1, " Command=[0x%x]", command);
331
332 switch (command) {
333 case CA_APP_INFO:
334 memcpy(p_ca_message->msg, state->messages, 128);
335 if (copy_to_user(arg, p_ca_message, sizeof (struct ca_msg)) )
336 return -EFAULT;
337 break;
338 case CA_INFO:
339 memcpy(p_ca_message->msg, state->messages, 128);
340 if (copy_to_user(arg, p_ca_message, sizeof (struct ca_msg)) )
341 return -EFAULT;
342 break;
343 }
344 }
345
346 return 0;
347}
348
349static int handle_dst_tag(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u32 length)
350{
351 if (state->dst_hw_cap & DST_TYPE_HAS_SESSION) {
352 hw_buffer->msg[2] = p_ca_message->msg[1];
353 hw_buffer->msg[3] = p_ca_message->msg[2];
354 } else {
355 if (length > 247) {
356 dprintk(verbose, DST_CA_ERROR, 1, " Message too long ! *** Bailing Out *** !");
357 return -1;
358 }
359 hw_buffer->msg[0] = (length & 0xff) + 7;
360 hw_buffer->msg[1] = 0x40;
361 hw_buffer->msg[2] = 0x03;
362 hw_buffer->msg[3] = 0x00;
363 hw_buffer->msg[4] = 0x03;
364 hw_buffer->msg[5] = length & 0xff;
365 hw_buffer->msg[6] = 0x00;
366
367
368
369
370
371 memcpy(&hw_buffer->msg[7], &p_ca_message->msg[4], length);
372 }
373
374 return 0;
375}
376
377static int write_to_8820(struct dst_state *state, struct ca_msg *hw_buffer, u8 length, u8 reply)
378{
379 if ((dst_put_ci(state, hw_buffer->msg, length, hw_buffer->msg, reply)) < 0) {
380 dprintk(verbose, DST_CA_ERROR, 1, " DST-CI Command failed.");
381 dprintk(verbose, DST_CA_NOTICE, 1, " Resetting DST.");
382 rdc_reset_state(state);
383 return -1;
384 }
385 dprintk(verbose, DST_CA_NOTICE, 1, " DST-CI Command success.");
386
387 return 0;
388}
389
390static u32 asn_1_decode(u8 *asn_1_array)
391{
392 u8 length_field = 0, word_count = 0, count = 0;
393 u32 length = 0;
394
395 length_field = asn_1_array[0];
396 dprintk(verbose, DST_CA_DEBUG, 1, " Length field=[%02x]", length_field);
397 if (length_field < 0x80) {
398 length = length_field & 0x7f;
399 dprintk(verbose, DST_CA_DEBUG, 1, " Length=[%02x]\n", length);
400 } else {
401 word_count = length_field & 0x7f;
402 for (count = 0; count < word_count; count++) {
403 length = length << 8;
404 length += asn_1_array[count + 1];
405 dprintk(verbose, DST_CA_DEBUG, 1, " Length=[%04x]", length);
406 }
407 }
408 return length;
409}
410
411static int debug_string(u8 *msg, u32 length, u32 offset)
412{
413 u32 i;
414
415 dprintk(verbose, DST_CA_DEBUG, 0, " String=[ ");
416 for (i = offset; i < length; i++)
417 dprintk(verbose, DST_CA_DEBUG, 0, "%02x ", msg[i]);
418 dprintk(verbose, DST_CA_DEBUG, 0, "]\n");
419
420 return 0;
421}
422
423
424static int ca_set_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u8 reply, u8 query)
425{
426 u32 length = 0;
427 u8 tag_length = 8;
428
429 length = asn_1_decode(&p_ca_message->msg[3]);
430 dprintk(verbose, DST_CA_DEBUG, 1, " CA Message length=[%d]", length);
431 debug_string(&p_ca_message->msg[4], length, 0);
432
433 memset(hw_buffer->msg, '\0', length);
434 handle_dst_tag(state, p_ca_message, hw_buffer, length);
435 put_checksum(hw_buffer->msg, hw_buffer->msg[0]);
436
437 debug_string(hw_buffer->msg, (length + tag_length), 0);
438 write_to_8820(state, hw_buffer, (length + tag_length), reply);
439
440 return 0;
441}
442
443
444
445static int dst_check_ca_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer)
446{
447 int ca_pmt_reply_test = 0;
448
449
450
451
452
453 if (ca_pmt_reply_test) {
454 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 1, GET_REPLY)) < 0) {
455 dprintk(verbose, DST_CA_ERROR, 1, " ca_set_pmt.. failed !");
456 return -1;
457 }
458
459
460
461 dprintk(verbose, DST_CA_ERROR, 1, " Not there yet");
462 }
463
464 if (!ca_pmt_reply_test) {
465 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, NO_REPLY)) < 0) {
466 dprintk(verbose, DST_CA_ERROR, 1, " ca_set_pmt.. failed !");
467 return -1;
468 }
469 dprintk(verbose, DST_CA_NOTICE, 1, " ca_set_pmt.. success !");
470
471
472 }
473 return 0;
474}
475
476static int ca_send_message(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
477{
478 int i = 0;
479 unsigned int ca_message_header_len;
480
481 u32 command = 0;
482 struct ca_msg *hw_buffer;
483 int result = 0;
484
485 if ((hw_buffer = kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) {
486 dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure");
487 return -ENOMEM;
488 }
489 dprintk(verbose, DST_CA_DEBUG, 1, " ");
490
491 if (copy_from_user(p_ca_message, arg, sizeof (struct ca_msg))) {
492 result = -EFAULT;
493 goto free_mem_and_exit;
494 }
495
496
497 if (p_ca_message->msg) {
498 ca_message_header_len = p_ca_message->length;
499
500 command = 0;
501
502 for (i = 0; i < 3; i++) {
503 command = command | p_ca_message->msg[i];
504 if (i < 2)
505 command = command << 8;
506 }
507 dprintk(verbose, DST_CA_DEBUG, 1, " Command=[0x%x]\n", command);
508
509 switch (command) {
510 case CA_PMT:
511 dprintk(verbose, DST_CA_DEBUG, 1, "Command = SEND_CA_PMT");
512 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, 0)) < 0) {
513 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_PMT Failed !");
514 result = -1;
515 goto free_mem_and_exit;
516 }
517 dprintk(verbose, DST_CA_INFO, 1, " -->CA_PMT Success !");
518 break;
519 case CA_PMT_REPLY:
520 dprintk(verbose, DST_CA_INFO, 1, "Command = CA_PMT_REPLY");
521
522 if ((dst_check_ca_pmt(state, p_ca_message, hw_buffer)) < 0) {
523 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_PMT_REPLY Failed !");
524 result = -1;
525 goto free_mem_and_exit;
526 }
527 dprintk(verbose, DST_CA_INFO, 1, " -->CA_PMT_REPLY Success !");
528 break;
529 case CA_APP_INFO_ENQUIRY:
530 dprintk(verbose, DST_CA_INFO, 1, " Getting Cam Application information");
531
532 if ((ca_get_app_info(state)) < 0) {
533 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_APP_INFO_ENQUIRY Failed !");
534 result = -1;
535 goto free_mem_and_exit;
536 }
537 dprintk(verbose, DST_CA_INFO, 1, " -->CA_APP_INFO_ENQUIRY Success !");
538 break;
539 case CA_INFO_ENQUIRY:
540 dprintk(verbose, DST_CA_INFO, 1, " Getting CA Information");
541
542 if ((ca_get_ca_info(state)) < 0) {
543 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_INFO_ENQUIRY Failed !");
544 result = -1;
545 goto free_mem_and_exit;
546 }
547 dprintk(verbose, DST_CA_INFO, 1, " -->CA_INFO_ENQUIRY Success !");
548 break;
549 }
550 }
551free_mem_and_exit:
552 kfree (hw_buffer);
553
554 return result;
555}
556
557static long dst_ca_ioctl(struct file *file, unsigned int cmd, unsigned long ioctl_arg)
558{
559 struct dvb_device *dvbdev;
560 struct dst_state *state;
561 struct ca_slot_info *p_ca_slot_info;
562 struct ca_caps *p_ca_caps;
563 struct ca_msg *p_ca_message;
564 void __user *arg = (void __user *)ioctl_arg;
565 int result = 0;
566
567 lock_kernel();
568 dvbdev = (struct dvb_device *)file->private_data;
569 state = (struct dst_state *)dvbdev->priv;
570 p_ca_message = kmalloc(sizeof (struct ca_msg), GFP_KERNEL);
571 p_ca_slot_info = kmalloc(sizeof (struct ca_slot_info), GFP_KERNEL);
572 p_ca_caps = kmalloc(sizeof (struct ca_caps), GFP_KERNEL);
573 if (!p_ca_message || !p_ca_slot_info || !p_ca_caps) {
574 dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure");
575 result = -ENOMEM;
576 goto free_mem_and_exit;
577 }
578
579
580 switch (cmd) {
581 case CA_SEND_MSG:
582 dprintk(verbose, DST_CA_INFO, 1, " Sending message");
583 if ((ca_send_message(state, p_ca_message, arg)) < 0) {
584 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SEND_MSG Failed !");
585 result = -1;
586 goto free_mem_and_exit;
587 }
588 break;
589 case CA_GET_MSG:
590 dprintk(verbose, DST_CA_INFO, 1, " Getting message");
591 if ((ca_get_message(state, p_ca_message, arg)) < 0) {
592 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_MSG Failed !");
593 result = -1;
594 goto free_mem_and_exit;
595 }
596 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_MSG Success !");
597 break;
598 case CA_RESET:
599 dprintk(verbose, DST_CA_ERROR, 1, " Resetting DST");
600 dst_error_bailout(state);
601 msleep(4000);
602 break;
603 case CA_GET_SLOT_INFO:
604 dprintk(verbose, DST_CA_INFO, 1, " Getting Slot info");
605 if ((ca_get_slot_info(state, p_ca_slot_info, arg)) < 0) {
606 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_SLOT_INFO Failed !");
607 result = -1;
608 goto free_mem_and_exit;
609 }
610 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_SLOT_INFO Success !");
611 break;
612 case CA_GET_CAP:
613 dprintk(verbose, DST_CA_INFO, 1, " Getting Slot capabilities");
614 if ((ca_get_slot_caps(state, p_ca_caps, arg)) < 0) {
615 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_CAP Failed !");
616 result = -1;
617 goto free_mem_and_exit;
618 }
619 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_CAP Success !");
620 break;
621 case CA_GET_DESCR_INFO:
622 dprintk(verbose, DST_CA_INFO, 1, " Getting descrambler description");
623 if ((ca_get_slot_descr(state, p_ca_message, arg)) < 0) {
624 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_DESCR_INFO Failed !");
625 result = -1;
626 goto free_mem_and_exit;
627 }
628 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_DESCR_INFO Success !");
629 break;
630 case CA_SET_DESCR:
631 dprintk(verbose, DST_CA_INFO, 1, " Setting descrambler");
632 if ((ca_set_slot_descr()) < 0) {
633 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SET_DESCR Failed !");
634 result = -1;
635 goto free_mem_and_exit;
636 }
637 dprintk(verbose, DST_CA_INFO, 1, " -->CA_SET_DESCR Success !");
638 break;
639 case CA_SET_PID:
640 dprintk(verbose, DST_CA_INFO, 1, " Setting PID");
641 if ((ca_set_pid()) < 0) {
642 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SET_PID Failed !");
643 result = -1;
644 goto free_mem_and_exit;
645 }
646 dprintk(verbose, DST_CA_INFO, 1, " -->CA_SET_PID Success !");
647 default:
648 result = -EOPNOTSUPP;
649 };
650 free_mem_and_exit:
651 kfree (p_ca_message);
652 kfree (p_ca_slot_info);
653 kfree (p_ca_caps);
654
655 unlock_kernel();
656 return result;
657}
658
659static int dst_ca_open(struct inode *inode, struct file *file)
660{
661 dprintk(verbose, DST_CA_DEBUG, 1, " Device opened [%p] ", file);
662 try_module_get(THIS_MODULE);
663
664 return 0;
665}
666
667static int dst_ca_release(struct inode *inode, struct file *file)
668{
669 dprintk(verbose, DST_CA_DEBUG, 1, " Device closed.");
670 module_put(THIS_MODULE);
671
672 return 0;
673}
674
675static ssize_t dst_ca_read(struct file *file, char __user *buffer, size_t length, loff_t *offset)
676{
677 ssize_t bytes_read = 0;
678
679 dprintk(verbose, DST_CA_DEBUG, 1, " Device read.");
680
681 return bytes_read;
682}
683
684static ssize_t dst_ca_write(struct file *file, const char __user *buffer, size_t length, loff_t *offset)
685{
686 dprintk(verbose, DST_CA_DEBUG, 1, " Device write.");
687
688 return 0;
689}
690
691static const struct file_operations dst_ca_fops = {
692 .owner = THIS_MODULE,
693 .unlocked_ioctl = dst_ca_ioctl,
694 .open = dst_ca_open,
695 .release = dst_ca_release,
696 .read = dst_ca_read,
697 .write = dst_ca_write
698};
699
700static struct dvb_device dvbdev_ca = {
701 .priv = NULL,
702 .users = 1,
703 .readers = 1,
704 .writers = 1,
705 .fops = &dst_ca_fops
706};
707
708struct dvb_device *dst_ca_attach(struct dst_state *dst, struct dvb_adapter *dvb_adapter)
709{
710 struct dvb_device *dvbdev;
711
712 dprintk(verbose, DST_CA_ERROR, 1, "registering DST-CA device");
713 if (dvb_register_device(dvb_adapter, &dvbdev, &dvbdev_ca, dst, DVB_DEVICE_CA) == 0) {
714 dst->dst_ca = dvbdev;
715 return dst->dst_ca;
716 }
717
718 return NULL;
719}
720
721EXPORT_SYMBOL(dst_ca_attach);
722
723MODULE_DESCRIPTION("DST DVB-S/T/C Combo CA driver");
724MODULE_AUTHOR("Manu Abraham");
725MODULE_LICENSE("GPL");
726
