Merge rsync://www.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
[linux-2.6] / drivers / media / dvb / bt8xx / dst_ca.c
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 = 5;
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_dst_tag(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u32 length)
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[0] = (length & 0xff) + 7;
306                 hw_buffer->msg[1] = 0x40;
307                 hw_buffer->msg[2] = 0x03;
308                 hw_buffer->msg[3] = 0x00;
309                 hw_buffer->msg[4] = 0x03;
310                 hw_buffer->msg[5] = length & 0xff;
311                 hw_buffer->msg[6] = 0x00;
312         }
313         return 0;
314 }
315
316
317 static int write_to_8820(struct dst_state *state, struct ca_msg *hw_buffer, u8 length, u8 reply)
318 {
319         if ((dst_put_ci(state, hw_buffer->msg, length, hw_buffer->msg, reply)) < 0) {
320                 dprintk("%s: DST-CI Command failed.\n", __FUNCTION__);
321                 dprintk("%s: Resetting DST.\n", __FUNCTION__);
322                 rdc_reset_state(state);
323                 return -1;
324         }
325         if (verbose > 2)
326                 dprintk("%s: DST-CI Command succes.\n", __FUNCTION__);
327
328         return 0;
329 }
330
331 u32 asn_1_decode(u8 *asn_1_array)
332 {
333         u8 length_field = 0, word_count = 0, count = 0;
334         u32 length = 0;
335
336         length_field = asn_1_array[0];
337         dprintk("%s: Length field=[%02x]\n", __FUNCTION__, length_field);
338         if (length_field < 0x80) {
339                 length = length_field & 0x7f;
340                 dprintk("%s: Length=[%02x]\n", __FUNCTION__, length);
341         } else {
342                 word_count = length_field & 0x7f;
343                 for (count = 0; count < word_count; count++) {
344                         length = (length | asn_1_array[count + 1]) << 8;
345                         dprintk("%s: Length=[%04x]\n", __FUNCTION__, length);
346                 }
347         }
348         return length;
349 }
350
351 static int init_buffer(u8 *buffer, u32 length)
352 {
353         u32 i;
354         for (i = 0; i < length; i++)
355                 buffer[i] = 0;
356
357         return 0;
358 }
359
360 static int debug_string(u8 *msg, u32 length, u32 offset)
361 {
362         u32 i;
363
364         dprintk(" String=[ ");
365         for (i = offset; i < length; i++)
366                 dprintk("%02x ", msg[i]);
367         dprintk("]\n");
368
369         return 0;
370 }
371
372 static int copy_string(u8 *destination, u8 *source, u32 dest_offset, u32 source_offset, u32 length)
373 {
374         u32 i;
375         dprintk("%s: Copying [", __FUNCTION__);
376         for (i = 0; i < length; i++) {
377                 destination[i + dest_offset] = source[i + source_offset];
378                 dprintk(" %02x", source[i + source_offset]);
379         }
380         dprintk("]\n");
381
382         return i;
383 }
384
385 static int modify_4_bits(u8 *message, u32 pos)
386 {
387         message[pos] &= 0x0f;
388
389         return 0;
390 }
391
392
393
394 static int ca_set_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u8 reply, u8 query)
395 {
396         u32 length = 0, count = 0;
397         u8 asn_1_words, program_header_length;
398         u16 program_info_length = 0, es_info_length = 0;
399         u32 hw_offset = 0, buf_offset = 0, i;
400         u8 dst_tag_length;
401
402         length = asn_1_decode(&p_ca_message->msg[3]);
403         dprintk("%s: CA Message length=[%d]\n", __FUNCTION__, length);
404         dprintk("%s: ASN.1 ", __FUNCTION__);
405         debug_string(&p_ca_message->msg[4], length, 0); // length does not include tag and length
406
407         init_buffer(hw_buffer->msg, length);
408         handle_dst_tag(state, p_ca_message, hw_buffer, length);
409
410         hw_offset = 7;
411         asn_1_words = 1; // just a hack to test, should compute this one
412         buf_offset = 3;
413         program_header_length = 6;
414         dst_tag_length = 7;
415
416 //      debug_twinhan_ca_params(state, p_ca_message, hw_buffer, reply, query, length, hw_offset, buf_offset);
417 //      dprintk("%s: Program Header(BUF)", __FUNCTION__);
418 //      debug_string(&p_ca_message->msg[4], program_header_length, 0);
419 //      dprintk("%s: Copying Program header\n", __FUNCTION__);
420         copy_string(hw_buffer->msg, p_ca_message->msg, hw_offset, (buf_offset + asn_1_words), program_header_length);
421         buf_offset += program_header_length, hw_offset += program_header_length;
422         modify_4_bits(hw_buffer->msg, (hw_offset - 2));
423         if (state->type_flags & DST_TYPE_HAS_INC_COUNT) {       // workaround
424                 dprintk("%s: Probably an ASIC bug !!!\n", __FUNCTION__);
425                 debug_string(hw_buffer->msg, (hw_offset + program_header_length), 0);
426                 hw_buffer->msg[hw_offset - 1] += 1;
427         }
428
429 //      dprintk("%s: Program Header(HW), Count=[%d]", __FUNCTION__, count);
430 //      debug_string(hw_buffer->msg, hw_offset, 0);
431
432         program_info_length =  ((program_info_length | (p_ca_message->msg[buf_offset - 1] & 0x0f)) << 8) | p_ca_message->msg[buf_offset];
433         dprintk("%s: Program info length=[%02x]\n", __FUNCTION__, program_info_length);
434         if (program_info_length) {
435                 count = copy_string(hw_buffer->msg, p_ca_message->msg, hw_offset, (buf_offset + 1), (program_info_length + 1) ); // copy next elem, not current
436                 buf_offset += count, hw_offset += count;
437 //              dprintk("%s: Program level ", __FUNCTION__);
438 //              debug_string(hw_buffer->msg, hw_offset, 0);
439         }
440
441         buf_offset += 1;// hw_offset += 1;
442         for (i = buf_offset; i < length; i++) {
443 //              dprintk("%s: Stream Header ", __FUNCTION__);
444                 count = copy_string(hw_buffer->msg, p_ca_message->msg, hw_offset, buf_offset, 5);
445                 modify_4_bits(hw_buffer->msg, (hw_offset + 3));
446
447                 hw_offset += 5, buf_offset += 5, i += 4;
448 //              debug_string(hw_buffer->msg, hw_offset, (hw_offset - 5));
449                 es_info_length = ((es_info_length | (p_ca_message->msg[buf_offset - 1] & 0x0f)) << 8) | p_ca_message->msg[buf_offset];
450                 dprintk("%s: ES info length=[%02x]\n", __FUNCTION__, es_info_length);
451                 if (es_info_length) {
452                         // copy descriptors @ STREAM level
453                         dprintk("%s: Descriptors @ STREAM level...!!! \n", __FUNCTION__);
454                 }
455
456         }
457         hw_buffer->msg[length + dst_tag_length] = dst_check_sum(hw_buffer->msg, (length + dst_tag_length));
458 //      dprintk("%s: Total length=[%d], Checksum=[%02x]\n", __FUNCTION__, (length + dst_tag_length), hw_buffer->msg[length + dst_tag_length]);
459         debug_string(hw_buffer->msg, (length + dst_tag_length + 1), 0); // dst tags also
460         write_to_8820(state, hw_buffer, (length + dst_tag_length + 1), reply);  // checksum
461
462         return 0;
463 }
464
465
466 /*      Board supports CA PMT reply ?           */
467 static int dst_check_ca_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer)
468 {
469         int ca_pmt_reply_test = 0;
470
471         /*      Do test board                   */
472         /*      Not there yet but soon          */
473
474
475         /*      CA PMT Reply capable            */
476         if (ca_pmt_reply_test) {
477                 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 1, GET_REPLY)) < 0) {
478                         dprintk("%s: ca_set_pmt.. failed !\n", __FUNCTION__);
479                         return -1;
480                 }
481
482         /*      Process CA PMT Reply            */
483         /*      will implement soon             */
484                 dprintk("%s: Not there yet\n", __FUNCTION__);
485         }
486         /*      CA PMT Reply not capable        */
487         if (!ca_pmt_reply_test) {
488                 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, NO_REPLY)) < 0) {
489                         dprintk("%s: ca_set_pmt.. failed !\n", __FUNCTION__);
490                         return -1;
491                 }
492                 if (verbose > 3)
493                         dprintk("%s: ca_set_pmt.. success !\n", __FUNCTION__);
494         /*      put a dummy message             */
495
496         }
497         return 0;
498 }
499
500 static int ca_send_message(struct dst_state *state, struct ca_msg *p_ca_message, void *arg)
501 {
502         int i = 0;
503         unsigned int ca_message_header_len;
504
505         u32 command = 0;
506         struct ca_msg *hw_buffer;
507
508         if ((hw_buffer = (struct ca_msg *) kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) {
509                 dprintk("%s: Memory allocation failure\n", __FUNCTION__);
510                 return -ENOMEM;
511         }
512         if (verbose > 3)
513                 dprintk("%s\n", __FUNCTION__);
514
515         if (copy_from_user(p_ca_message, (void *)arg, sizeof (struct ca_msg)))
516                 return -EFAULT;
517
518         if (p_ca_message->msg) {
519                 ca_message_header_len = p_ca_message->length;   /*      Restore it back when you are done       */
520                 /*      EN50221 tag     */
521                 command = 0;
522
523                 for (i = 0; i < 3; i++) {
524                         command = command | p_ca_message->msg[i];
525                         if (i < 2)
526                                 command = command << 8;
527                 }
528                 if (verbose > 3)
529                         dprintk("%s:Command=[0x%x]\n", __FUNCTION__, command);
530
531                 switch (command) {
532                         case CA_PMT:
533                                 if (verbose > 3)
534 //                                      dprintk("Command = SEND_CA_PMT\n");
535                                         dprintk("Command = SEND_CA_PMT\n");
536 //                              if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, 0)) < 0) {
537                                 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, 0)) < 0) {   // code simplification started
538                                         dprintk("%s: -->CA_PMT Failed !\n", __FUNCTION__);
539                                         return -1;
540                                 }
541                                 if (verbose > 3)
542                                         dprintk("%s: -->CA_PMT Success !\n", __FUNCTION__);
543 //                              retval = dummy_set_pmt(state, p_ca_message, hw_buffer, 0, 0);
544
545                                 break;
546
547                         case CA_PMT_REPLY:
548                                 if (verbose > 3)
549                                         dprintk("Command = CA_PMT_REPLY\n");
550                                 /*      Have to handle the 2 basic types of cards here  */
551                                 if ((dst_check_ca_pmt(state, p_ca_message, hw_buffer)) < 0) {
552                                         dprintk("%s: -->CA_PMT_REPLY Failed !\n", __FUNCTION__);
553                                         return -1;
554                                 }
555                                 if (verbose > 3)
556                                         dprintk("%s: -->CA_PMT_REPLY Success !\n", __FUNCTION__);
557
558                                 /*      Certain boards do behave different ?            */
559 //                              retval = ca_set_pmt(state, p_ca_message, hw_buffer, 1, 1);
560
561                         case CA_APP_INFO_ENQUIRY:               // only for debugging
562                                 if (verbose > 3)
563                                         dprintk("%s: Getting Cam Application information\n", __FUNCTION__);
564
565                                 if ((ca_get_app_info(state)) < 0) {
566                                         dprintk("%s: -->CA_APP_INFO_ENQUIRY Failed !\n", __FUNCTION__);
567                                         return -1;
568                                 }
569                                 if (verbose > 3)
570                                         dprintk("%s: -->CA_APP_INFO_ENQUIRY Success !\n", __FUNCTION__);
571
572                                 break;
573                 }
574         }
575         return 0;
576 }
577
578 static int dst_ca_ioctl(struct inode *inode, struct file *file, unsigned int cmd, void *arg)
579 {
580         struct dvb_device* dvbdev = (struct dvb_device*) file->private_data;
581         struct dst_state* state = (struct dst_state*) dvbdev->priv;
582         struct ca_slot_info *p_ca_slot_info;
583         struct ca_caps *p_ca_caps;
584         struct ca_msg *p_ca_message;
585
586         if ((p_ca_message = (struct ca_msg *) kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) {
587                 dprintk("%s: Memory allocation failure\n", __FUNCTION__);
588                 return -ENOMEM;
589         }
590
591         if ((p_ca_slot_info = (struct ca_slot_info *) kmalloc(sizeof (struct ca_slot_info), GFP_KERNEL)) == NULL) {
592                 dprintk("%s: Memory allocation failure\n", __FUNCTION__);
593                 return -ENOMEM;
594         }
595
596         if ((p_ca_caps = (struct ca_caps *) kmalloc(sizeof (struct ca_caps), GFP_KERNEL)) == NULL) {
597                 dprintk("%s: Memory allocation failure\n", __FUNCTION__);
598                 return -ENOMEM;
599         }
600
601         /*      We have now only the standard ioctl's, the driver is upposed to handle internals.       */
602         switch (cmd) {
603                 case CA_SEND_MSG:
604                         if (verbose > 1)
605                                 dprintk("%s: Sending message\n", __FUNCTION__);
606                         if ((ca_send_message(state, p_ca_message, arg)) < 0) {
607                                 dprintk("%s: -->CA_SEND_MSG Failed !\n", __FUNCTION__);
608                                 return -1;
609                         }
610
611                         break;
612
613                 case CA_GET_MSG:
614                         if (verbose > 1)
615                                 dprintk("%s: Getting message\n", __FUNCTION__);
616                         if ((ca_get_message(state, p_ca_message, arg)) < 0) {
617                                 dprintk("%s: -->CA_GET_MSG Failed !\n", __FUNCTION__);
618                                 return -1;
619                         }
620                         if (verbose > 1)
621                                 dprintk("%s: -->CA_GET_MSG Success !\n", __FUNCTION__);
622
623                         break;
624
625                 case CA_RESET:
626                         if (verbose > 1)
627                                 dprintk("%s: Resetting DST\n", __FUNCTION__);
628                         dst_error_bailout(state);
629                         msleep(4000);
630
631                         break;
632
633                 case CA_GET_SLOT_INFO:
634                         if (verbose > 1)
635                                 dprintk("%s: Getting Slot info\n", __FUNCTION__);
636                         if ((ca_get_slot_info(state, p_ca_slot_info, arg)) < 0) {
637                                 dprintk("%s: -->CA_GET_SLOT_INFO Failed !\n", __FUNCTION__);
638                                 return -1;
639                         }
640                         if (verbose > 1)
641                                 dprintk("%s: -->CA_GET_SLOT_INFO Success !\n", __FUNCTION__);
642
643                         break;
644
645                 case CA_GET_CAP:
646                         if (verbose > 1)
647                                 dprintk("%s: Getting Slot capabilities\n", __FUNCTION__);
648                         if ((ca_get_slot_caps(state, p_ca_caps, arg)) < 0) {
649                                 dprintk("%s: -->CA_GET_CAP Failed !\n", __FUNCTION__);
650                                 return -1;
651                         }
652                         if (verbose > 1)
653                                 dprintk("%s: -->CA_GET_CAP Success !\n", __FUNCTION__);
654
655                         break;
656
657                 case CA_GET_DESCR_INFO:
658                         if (verbose > 1)
659                                 dprintk("%s: Getting descrambler description\n", __FUNCTION__);
660                         if ((ca_get_slot_descr(state, p_ca_message, arg)) < 0) {
661                                 dprintk("%s: -->CA_GET_DESCR_INFO Failed !\n", __FUNCTION__);
662                                 return -1;
663                         }
664                         if (verbose > 1)
665                                 dprintk("%s: -->CA_GET_DESCR_INFO Success !\n", __FUNCTION__);
666
667                         break;
668
669                 case CA_SET_DESCR:
670                         if (verbose > 1)
671                                 dprintk("%s: Setting descrambler\n", __FUNCTION__);
672                         if ((ca_set_slot_descr()) < 0) {
673                                 dprintk("%s: -->CA_SET_DESCR Failed !\n", __FUNCTION__);
674                                 return -1;
675                         }
676                         if (verbose > 1)
677                                 dprintk("%s: -->CA_SET_DESCR Success !\n", __FUNCTION__);
678
679                         break;
680
681                 case CA_SET_PID:
682                         if (verbose > 1)
683                                 dprintk("%s: Setting PID\n", __FUNCTION__);
684                         if ((ca_set_pid()) < 0) {
685                                 dprintk("%s: -->CA_SET_PID Failed !\n", __FUNCTION__);
686                                 return -1;
687                         }
688                         if (verbose > 1)
689                                 dprintk("%s: -->CA_SET_PID Success !\n", __FUNCTION__);
690
691                 default:
692                         return -EOPNOTSUPP;
693                 };
694
695         return 0;
696 }
697
698 static int dst_ca_open(struct inode *inode, struct file *file)
699 {
700         if (verbose > 4)
701                 dprintk("%s:Device opened [%p]\n", __FUNCTION__, file);
702         try_module_get(THIS_MODULE);
703
704         return 0;
705 }
706
707 static int dst_ca_release(struct inode *inode, struct file *file)
708 {
709         if (verbose > 4)
710                 dprintk("%s:Device closed.\n", __FUNCTION__);
711         module_put(THIS_MODULE);
712
713         return 0;
714 }
715
716 static int dst_ca_read(struct file *file, char __user * buffer, size_t length, loff_t * offset)
717 {
718         int bytes_read = 0;
719
720         if (verbose > 4)
721                 dprintk("%s:Device read.\n", __FUNCTION__);
722
723         return bytes_read;
724 }
725
726 static int dst_ca_write(struct file *file, const char __user * buffer, size_t length, loff_t * offset)
727 {
728         if (verbose > 4)
729                 dprintk("%s:Device write.\n", __FUNCTION__);
730
731         return 0;
732 }
733
734 static struct file_operations dst_ca_fops = {
735         .owner = THIS_MODULE,
736         .ioctl = (void *)dst_ca_ioctl,
737         .open = dst_ca_open,
738         .release = dst_ca_release,
739         .read = dst_ca_read,
740         .write = dst_ca_write
741 };
742
743 static struct dvb_device dvbdev_ca = {
744         .priv = NULL,
745         .users = 1,
746         .readers = 1,
747         .writers = 1,
748         .fops = &dst_ca_fops
749 };
750
751 int dst_ca_attach(struct dst_state *dst, struct dvb_adapter *dvb_adapter)
752 {
753         struct dvb_device *dvbdev;
754         if (verbose > 4)
755                 dprintk("%s:registering DST-CA device\n", __FUNCTION__);
756         dvb_register_device(dvb_adapter, &dvbdev, &dvbdev_ca, dst, DVB_DEVICE_CA);
757         return 0;
758 }
759
760 EXPORT_SYMBOL(dst_ca_attach);
761
762 MODULE_DESCRIPTION("DST DVB-S/T/C Combo CA driver");
763 MODULE_AUTHOR("Manu Abraham");
764 MODULE_LICENSE("GPL");