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Committer: Michael Beasley <mike@snafu.setup>
[mikesnafu-overlay.git] / drivers / media / dvb / bt8xx / dst_ca.c
blob50bc32a8bd5533921a9af2923cf618728a18db8b
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 #include <linux/kernel.h>
22 #include <linux/module.h>
23 #include <linux/init.h>
24 #include <linux/string.h>
25 #include <linux/dvb/ca.h>
26 #include "dvbdev.h"
27 #include "dvb_frontend.h"
28 #include "dst_ca.h"
29 #include "dst_common.h"
30
31 #define DST_CA_ERROR 0
32 #define DST_CA_NOTICE 1
33 #define DST_CA_INFO 2
34 #define DST_CA_DEBUG 3
35
36 #define dprintk(x, y, z, format, arg...) do { \
37 if (z) { \
38 if ((x > DST_CA_ERROR) && (x > y)) \
39 printk(KERN_ERR "%s: " format "\n", __FUNCTION__ , ##arg); \
40 else if ((x > DST_CA_NOTICE) && (x > y)) \
41 printk(KERN_NOTICE "%s: " format "\n", __FUNCTION__ , ##arg); \
42 else if ((x > DST_CA_INFO) && (x > y)) \
43 printk(KERN_INFO "%s: " format "\n", __FUNCTION__ , ##arg); \
44 else if ((x > DST_CA_DEBUG) && (x > y)) \
45 printk(KERN_DEBUG "%s: " format "\n", __FUNCTION__ , ##arg); \
46 } else { \
47 if (x > y) \
48 printk(format, ## arg); \
49 } \
50 } while(0)
51
52
53 static unsigned int verbose = 5;
54 module_param(verbose, int, 0644);
55 MODULE_PARM_DESC(verbose, "verbose startup messages, default is 1 (yes)");
56
57 /* Need some more work */
58 static int ca_set_slot_descr(void)
59 {
60 /* We could make this more graceful ? */
61 return -EOPNOTSUPP;
62 }
63
64 /* Need some more work */
65 static int ca_set_pid(void)
66 {
67 /* We could make this more graceful ? */
68 return -EOPNOTSUPP;
69 }
70
71 static void put_command_and_length(u8 *data, int command, int length)
72 {
73 data[0] = (command >> 16) & 0xff;
74 data[1] = (command >> 8) & 0xff;
75 data[2] = command & 0xff;
76 data[3] = length;
77 }
78
79 static void put_checksum(u8 *check_string, int length)
80 {
81 dprintk(verbose, DST_CA_DEBUG, 1, " Computing string checksum.");
82 dprintk(verbose, DST_CA_DEBUG, 1, " -> string length : 0x%02x", length);
83 check_string[length] = dst_check_sum (check_string, length);
84 dprintk(verbose, DST_CA_DEBUG, 1, " -> checksum : 0x%02x", check_string[length]);
85 }
86
87 static int dst_ci_command(struct dst_state* state, u8 * data, u8 *ca_string, u8 len, int read)
88 {
89 u8 reply;
90
91 mutex_lock(&state->dst_mutex);
92 dst_comm_init(state);
93 msleep(65);
94
95 if (write_dst(state, data, len)) {
96 dprintk(verbose, DST_CA_INFO, 1, " Write not successful, trying to recover");
97 dst_error_recovery(state);
98 goto error;
99 }
100 if ((dst_pio_disable(state)) < 0) {
101 dprintk(verbose, DST_CA_ERROR, 1, " DST PIO disable failed.");
102 goto error;
103 }
104 if (read_dst(state, &reply, GET_ACK) < 0) {
105 dprintk(verbose, DST_CA_INFO, 1, " Read not successful, trying to recover");
106 dst_error_recovery(state);
107 goto error;
108 }
109 if (read) {
110 if (! dst_wait_dst_ready(state, LONG_DELAY)) {
111 dprintk(verbose, DST_CA_NOTICE, 1, " 8820 not ready");
112 goto error;
113 }
114 if (read_dst(state, ca_string, 128) < 0) { /* Try to make this dynamic */
115 dprintk(verbose, DST_CA_INFO, 1, " Read not successful, trying to recover");
116 dst_error_recovery(state);
117 goto error;
118 }
119 }
120 mutex_unlock(&state->dst_mutex);
121 return 0;
122
123 error:
124 mutex_unlock(&state->dst_mutex);
125 return -EIO;
126 }
127
128
129 static int dst_put_ci(struct dst_state *state, u8 *data, int len, u8 *ca_string, int read)
130 {
131 u8 dst_ca_comm_err = 0;
132
133 while (dst_ca_comm_err < RETRIES) {
134 dprintk(verbose, DST_CA_NOTICE, 1, " Put Command");
135 if (dst_ci_command(state, data, ca_string, len, read)) { // If error
136 dst_error_recovery(state);
137 dst_ca_comm_err++; // work required here.
138 } else {
139 break;
140 }
141 }
142
143 if(dst_ca_comm_err == RETRIES)
144 return -1;
145
146 return 0;
147 }
148
149
150
151 static int ca_get_app_info(struct dst_state *state)
152 {
153 int length, str_length;
154 static u8 command[8] = {0x07, 0x40, 0x01, 0x00, 0x01, 0x00, 0x00, 0xff};
155
156 put_checksum(&command[0], command[0]);
157 if ((dst_put_ci(state, command, sizeof(command), state->messages, GET_REPLY)) < 0) {
158 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
159 return -1;
160 }
161 dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
162 dprintk(verbose, DST_CA_INFO, 1, " ================================ CI Module Application Info ======================================");
163 dprintk(verbose, DST_CA_INFO, 1, " Application Type=[%d], Application Vendor=[%d], Vendor Code=[%d]\n%s: Application info=[%s]",
164 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(verbose, DST_CA_INFO, 1, " ==================================================================================================");
167
168 // Transform dst message to correct application_info message
169 length = state->messages[5];
170 str_length = length - 6;
171 if (str_length < 0) {
172 str_length = 0;
173 dprintk(verbose, DST_CA_ERROR, 1, "Invalid string length returned in ca_get_app_info(). Recovering.");
174 }
175
176 // First, the command and length fields
177 put_command_and_length(&state->messages[0], CA_APP_INFO, length);
178
179 // Copy application_type, application_manufacturer and manufacturer_code
180 memcpy(&state->messages[4], &state->messages[7], 5);
181
182 // Set string length and copy string
183 state->messages[9] = str_length;
184 memcpy(&state->messages[10], &state->messages[12], str_length);
185
186 return 0;
187 }
188
189 static int ca_get_ca_info(struct dst_state *state)
190 {
191 int srcPtr, dstPtr, i, num_ids;
192 static u8 slot_command[8] = {0x07, 0x40, 0x00, 0x00, 0x02, 0x00, 0x00, 0xff};
193 const int in_system_id_pos = 8, out_system_id_pos = 4, in_num_ids_pos = 7;
194
195 put_checksum(&slot_command[0], slot_command[0]);
196 if ((dst_put_ci(state, slot_command, sizeof (slot_command), state->messages, GET_REPLY)) < 0) {
197 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
198 return -1;
199 }
200 dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
201
202 // Print raw data
203 dprintk(verbose, DST_CA_INFO, 0, " DST data = [");
204 for (i = 0; i < state->messages[0] + 1; i++) {
205 dprintk(verbose, DST_CA_INFO, 0, " 0x%02x", state->messages[i]);
206 }
207 dprintk(verbose, DST_CA_INFO, 0, "]\n");
208
209 // Set the command and length of the output
210 num_ids = state->messages[in_num_ids_pos];
211 if (num_ids >= 100) {
212 num_ids = 100;
213 dprintk(verbose, DST_CA_ERROR, 1, "Invalid number of ids (>100). Recovering.");
214 }
215 put_command_and_length(&state->messages[0], CA_INFO, num_ids * 2);
216
217 dprintk(verbose, DST_CA_INFO, 0, " CA_INFO = [");
218 srcPtr = in_system_id_pos;
219 dstPtr = out_system_id_pos;
220 for(i = 0; i < num_ids; i++) {
221 dprintk(verbose, DST_CA_INFO, 0, " 0x%02x%02x", state->messages[srcPtr + 0], state->messages[srcPtr + 1]);
222 // Append to output
223 state->messages[dstPtr + 0] = state->messages[srcPtr + 0];
224 state->messages[dstPtr + 1] = state->messages[srcPtr + 1];
225 srcPtr += 2;
226 dstPtr += 2;
227 }
228 dprintk(verbose, DST_CA_INFO, 0, "]\n");
229
230 return 0;
231 }
232
233 static int ca_get_slot_caps(struct dst_state *state, struct ca_caps *p_ca_caps, void __user *arg)
234 {
235 int i;
236 u8 slot_cap[256];
237 static u8 slot_command[8] = {0x07, 0x40, 0x02, 0x00, 0x02, 0x00, 0x00, 0xff};
238
239 put_checksum(&slot_command[0], slot_command[0]);
240 if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_cap, GET_REPLY)) < 0) {
241 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
242 return -1;
243 }
244 dprintk(verbose, DST_CA_NOTICE, 1, " -->dst_put_ci SUCCESS !");
245
246 /* Will implement the rest soon */
247
248 dprintk(verbose, DST_CA_INFO, 1, " Slot cap = [%d]", slot_cap[7]);
249 dprintk(verbose, DST_CA_INFO, 0, "===================================\n");
250 for (i = 0; i < slot_cap[0] + 1; i++)
251 dprintk(verbose, DST_CA_INFO, 0, " %d", slot_cap[i]);
252 dprintk(verbose, DST_CA_INFO, 0, "\n");
253
254 p_ca_caps->slot_num = 1;
255 p_ca_caps->slot_type = 1;
256 p_ca_caps->descr_num = slot_cap[7];
257 p_ca_caps->descr_type = 1;
258
259 if (copy_to_user(arg, p_ca_caps, sizeof (struct ca_caps)))
260 return -EFAULT;
261
262 return 0;
263 }
264
265 /* Need some more work */
266 static int ca_get_slot_descr(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
267 {
268 return -EOPNOTSUPP;
269 }
270
271
272 static int ca_get_slot_info(struct dst_state *state, struct ca_slot_info *p_ca_slot_info, void __user *arg)
273 {
274 int i;
275 static u8 slot_command[8] = {0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff};
276
277 u8 *slot_info = state->messages;
278
279 put_checksum(&slot_command[0], 7);
280 if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_info, GET_REPLY)) < 0) {
281 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
282 return -1;
283 }
284 dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
285
286 /* Will implement the rest soon */
287
288 dprintk(verbose, DST_CA_INFO, 1, " Slot info = [%d]", slot_info[3]);
289 dprintk(verbose, DST_CA_INFO, 0, "===================================\n");
290 for (i = 0; i < 8; i++)
291 dprintk(verbose, DST_CA_INFO, 0, " %d", slot_info[i]);
292 dprintk(verbose, DST_CA_INFO, 0, "\n");
293
294 if (slot_info[4] & 0x80) {
295 p_ca_slot_info->flags = CA_CI_MODULE_PRESENT;
296 p_ca_slot_info->num = 1;
297 p_ca_slot_info->type = CA_CI;
298 } else if (slot_info[4] & 0x40) {
299 p_ca_slot_info->flags = CA_CI_MODULE_READY;
300 p_ca_slot_info->num = 1;
301 p_ca_slot_info->type = CA_CI;
302 } else
303 p_ca_slot_info->flags = 0;
304
305 if (copy_to_user(arg, p_ca_slot_info, sizeof (struct ca_slot_info)))
306 return -EFAULT;
307
308 return 0;
309 }
310
311
312 static int ca_get_message(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
313 {
314 u8 i = 0;
315 u32 command = 0;
316
317 if (copy_from_user(p_ca_message, arg, sizeof (struct ca_msg)))
318 return -EFAULT;
319
320 if (p_ca_message->msg) {
321 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]);
322
323 for (i = 0; i < 3; i++) {
324 command = command | p_ca_message->msg[i];
325 if (i < 2)
326 command = command << 8;
327 }
328 dprintk(verbose, DST_CA_NOTICE, 1, " Command=[0x%x]", command);
329
330 switch (command) {
331 case CA_APP_INFO:
332 memcpy(p_ca_message->msg, state->messages, 128);
333 if (copy_to_user(arg, p_ca_message, sizeof (struct ca_msg)) )
334 return -EFAULT;
335 break;
336 case CA_INFO:
337 memcpy(p_ca_message->msg, state->messages, 128);
338 if (copy_to_user(arg, p_ca_message, sizeof (struct ca_msg)) )
339 return -EFAULT;
340 break;
341 }
342 }
343
344 return 0;
345 }
346
347 static int handle_dst_tag(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u32 length)
348 {
349 if (state->dst_hw_cap & DST_TYPE_HAS_SESSION) {
350 hw_buffer->msg[2] = p_ca_message->msg[1]; /* MSB */
351 hw_buffer->msg[3] = p_ca_message->msg[2]; /* LSB */
352 } else {
353 if (length > 247) {
354 dprintk(verbose, DST_CA_ERROR, 1, " Message too long ! *** Bailing Out *** !");
355 return -1;
356 }
357 hw_buffer->msg[0] = (length & 0xff) + 7;
358 hw_buffer->msg[1] = 0x40;
359 hw_buffer->msg[2] = 0x03;
360 hw_buffer->msg[3] = 0x00;
361 hw_buffer->msg[4] = 0x03;
362 hw_buffer->msg[5] = length & 0xff;
363 hw_buffer->msg[6] = 0x00;
364
365 /*
366 * Need to compute length for EN50221 section 8.3.2, for the time being
367 * assuming 8.3.2 is not applicable
368 */
369 memcpy(&hw_buffer->msg[7], &p_ca_message->msg[4], length);
370 }
371
372 return 0;
373 }
374
375 static int write_to_8820(struct dst_state *state, struct ca_msg *hw_buffer, u8 length, u8 reply)
376 {
377 if ((dst_put_ci(state, hw_buffer->msg, length, hw_buffer->msg, reply)) < 0) {
378 dprintk(verbose, DST_CA_ERROR, 1, " DST-CI Command failed.");
379 dprintk(verbose, DST_CA_NOTICE, 1, " Resetting DST.");
380 rdc_reset_state(state);
381 return -1;
382 }
383 dprintk(verbose, DST_CA_NOTICE, 1, " DST-CI Command success.");
384
385 return 0;
386 }
387
388 static u32 asn_1_decode(u8 *asn_1_array)
389 {
390 u8 length_field = 0, word_count = 0, count = 0;
391 u32 length = 0;
392
393 length_field = asn_1_array[0];
394 dprintk(verbose, DST_CA_DEBUG, 1, " Length field=[%02x]", length_field);
395 if (length_field < 0x80) {
396 length = length_field & 0x7f;
397 dprintk(verbose, DST_CA_DEBUG, 1, " Length=[%02x]\n", length);
398 } else {
399 word_count = length_field & 0x7f;
400 for (count = 0; count < word_count; count++) {
401 length = length << 8;
402 length += asn_1_array[count + 1];
403 dprintk(verbose, DST_CA_DEBUG, 1, " Length=[%04x]", length);
404 }
405 }
406 return length;
407 }
408
409 static int debug_string(u8 *msg, u32 length, u32 offset)
410 {
411 u32 i;
412
413 dprintk(verbose, DST_CA_DEBUG, 0, " String=[ ");
414 for (i = offset; i < length; i++)
415 dprintk(verbose, DST_CA_DEBUG, 0, "%02x ", msg[i]);
416 dprintk(verbose, DST_CA_DEBUG, 0, "]\n");
417
418 return 0;
419 }
420
421
422 static int ca_set_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u8 reply, u8 query)
423 {
424 u32 length = 0;
425 u8 tag_length = 8;
426
427 length = asn_1_decode(&p_ca_message->msg[3]);
428 dprintk(verbose, DST_CA_DEBUG, 1, " CA Message length=[%d]", length);
429 debug_string(&p_ca_message->msg[4], length, 0); /* length is excluding tag & length */
430
431 memset(hw_buffer->msg, '\0', length);
432 handle_dst_tag(state, p_ca_message, hw_buffer, length);
433 put_checksum(hw_buffer->msg, hw_buffer->msg[0]);
434
435 debug_string(hw_buffer->msg, (length + tag_length), 0); /* tags too */
436 write_to_8820(state, hw_buffer, (length + tag_length), reply);
437
438 return 0;
439 }
440
441
442 /* Board supports CA PMT reply ? */
443 static int dst_check_ca_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer)
444 {
445 int ca_pmt_reply_test = 0;
446
447 /* Do test board */
448 /* Not there yet but soon */
449
450 /* CA PMT Reply capable */
451 if (ca_pmt_reply_test) {
452 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 1, GET_REPLY)) < 0) {
453 dprintk(verbose, DST_CA_ERROR, 1, " ca_set_pmt.. failed !");
454 return -1;
455 }
456
457 /* Process CA PMT Reply */
458 /* will implement soon */
459 dprintk(verbose, DST_CA_ERROR, 1, " Not there yet");
460 }
461 /* CA PMT Reply not capable */
462 if (!ca_pmt_reply_test) {
463 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, NO_REPLY)) < 0) {
464 dprintk(verbose, DST_CA_ERROR, 1, " ca_set_pmt.. failed !");
465 return -1;
466 }
467 dprintk(verbose, DST_CA_NOTICE, 1, " ca_set_pmt.. success !");
468 /* put a dummy message */
469
470 }
471 return 0;
472 }
473
474 static int ca_send_message(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
475 {
476 int i = 0;
477 unsigned int ca_message_header_len;
478
479 u32 command = 0;
480 struct ca_msg *hw_buffer;
481 int result = 0;
482
483 if ((hw_buffer = kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) {
484 dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure");
485 return -ENOMEM;
486 }
487 dprintk(verbose, DST_CA_DEBUG, 1, " ");
488
489 if (copy_from_user(p_ca_message, arg, sizeof (struct ca_msg))) {
490 result = -EFAULT;
491 goto free_mem_and_exit;
492 }
493
494
495 if (p_ca_message->msg) {
496 ca_message_header_len = p_ca_message->length; /* Restore it back when you are done */
497 /* EN50221 tag */
498 command = 0;
499
500 for (i = 0; i < 3; i++) {
501 command = command | p_ca_message->msg[i];
502 if (i < 2)
503 command = command << 8;
504 }
505 dprintk(verbose, DST_CA_DEBUG, 1, " Command=[0x%x]\n", command);
506
507 switch (command) {
508 case CA_PMT:
509 dprintk(verbose, DST_CA_DEBUG, 1, "Command = SEND_CA_PMT");
510 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, 0)) < 0) { // code simplification started
511 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_PMT Failed !");
512 result = -1;
513 goto free_mem_and_exit;
514 }
515 dprintk(verbose, DST_CA_INFO, 1, " -->CA_PMT Success !");
516 break;
517 case CA_PMT_REPLY:
518 dprintk(verbose, DST_CA_INFO, 1, "Command = CA_PMT_REPLY");
519 /* Have to handle the 2 basic types of cards here */
520 if ((dst_check_ca_pmt(state, p_ca_message, hw_buffer)) < 0) {
521 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_PMT_REPLY Failed !");
522 result = -1;
523 goto free_mem_and_exit;
524 }
525 dprintk(verbose, DST_CA_INFO, 1, " -->CA_PMT_REPLY Success !");
526 break;
527 case CA_APP_INFO_ENQUIRY: // only for debugging
528 dprintk(verbose, DST_CA_INFO, 1, " Getting Cam Application information");
529
530 if ((ca_get_app_info(state)) < 0) {
531 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_APP_INFO_ENQUIRY Failed !");
532 result = -1;
533 goto free_mem_and_exit;
534 }
535 dprintk(verbose, DST_CA_INFO, 1, " -->CA_APP_INFO_ENQUIRY Success !");
536 break;
537 case CA_INFO_ENQUIRY:
538 dprintk(verbose, DST_CA_INFO, 1, " Getting CA Information");
539
540 if ((ca_get_ca_info(state)) < 0) {
541 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_INFO_ENQUIRY Failed !");
542 result = -1;
543 goto free_mem_and_exit;
544 }
545 dprintk(verbose, DST_CA_INFO, 1, " -->CA_INFO_ENQUIRY Success !");
546 break;
547 }
548 }
549 free_mem_and_exit:
550 kfree (hw_buffer);
551
552 return result;
553 }
554
555 static int dst_ca_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long ioctl_arg)
556 {
557 struct dvb_device* dvbdev = (struct dvb_device*) file->private_data;
558 struct dst_state* state = (struct dst_state*) dvbdev->priv;
559 struct ca_slot_info *p_ca_slot_info;
560 struct ca_caps *p_ca_caps;
561 struct ca_msg *p_ca_message;
562 void __user *arg = (void __user *)ioctl_arg;
563 int result = 0;
564
565 p_ca_message = kmalloc(sizeof (struct ca_msg), GFP_KERNEL);
566 p_ca_slot_info = kmalloc(sizeof (struct ca_slot_info), GFP_KERNEL);
567 p_ca_caps = kmalloc(sizeof (struct ca_caps), GFP_KERNEL);
568 if (!p_ca_message || !p_ca_slot_info || !p_ca_caps) {
569 dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure");
570 result = -ENOMEM;
571 goto free_mem_and_exit;
572 }
573
574 /* We have now only the standard ioctl's, the driver is upposed to handle internals. */
575 switch (cmd) {
576 case CA_SEND_MSG:
577 dprintk(verbose, DST_CA_INFO, 1, " Sending message");
578 if ((ca_send_message(state, p_ca_message, arg)) < 0) {
579 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SEND_MSG Failed !");
580 result = -1;
581 goto free_mem_and_exit;
582 }
583 break;
584 case CA_GET_MSG:
585 dprintk(verbose, DST_CA_INFO, 1, " Getting message");
586 if ((ca_get_message(state, p_ca_message, arg)) < 0) {
587 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_MSG Failed !");
588 result = -1;
589 goto free_mem_and_exit;
590 }
591 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_MSG Success !");
592 break;
593 case CA_RESET:
594 dprintk(verbose, DST_CA_ERROR, 1, " Resetting DST");
595 dst_error_bailout(state);
596 msleep(4000);
597 break;
598 case CA_GET_SLOT_INFO:
599 dprintk(verbose, DST_CA_INFO, 1, " Getting Slot info");
600 if ((ca_get_slot_info(state, p_ca_slot_info, arg)) < 0) {
601 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_SLOT_INFO Failed !");
602 result = -1;
603 goto free_mem_and_exit;
604 }
605 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_SLOT_INFO Success !");
606 break;
607 case CA_GET_CAP:
608 dprintk(verbose, DST_CA_INFO, 1, " Getting Slot capabilities");
609 if ((ca_get_slot_caps(state, p_ca_caps, arg)) < 0) {
610 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_CAP Failed !");
611 result = -1;
612 goto free_mem_and_exit;
613 }
614 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_CAP Success !");
615 break;
616 case CA_GET_DESCR_INFO:
617 dprintk(verbose, DST_CA_INFO, 1, " Getting descrambler description");
618 if ((ca_get_slot_descr(state, p_ca_message, arg)) < 0) {
619 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_DESCR_INFO Failed !");
620 result = -1;
621 goto free_mem_and_exit;
622 }
623 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_DESCR_INFO Success !");
624 break;
625 case CA_SET_DESCR:
626 dprintk(verbose, DST_CA_INFO, 1, " Setting descrambler");
627 if ((ca_set_slot_descr()) < 0) {
628 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SET_DESCR Failed !");
629 result = -1;
630 goto free_mem_and_exit;
631 }
632 dprintk(verbose, DST_CA_INFO, 1, " -->CA_SET_DESCR Success !");
633 break;
634 case CA_SET_PID:
635 dprintk(verbose, DST_CA_INFO, 1, " Setting PID");
636 if ((ca_set_pid()) < 0) {
637 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SET_PID Failed !");
638 result = -1;
639 goto free_mem_and_exit;
640 }
641 dprintk(verbose, DST_CA_INFO, 1, " -->CA_SET_PID Success !");
642 default:
643 result = -EOPNOTSUPP;
644 };
645 free_mem_and_exit:
646 kfree (p_ca_message);
647 kfree (p_ca_slot_info);
648 kfree (p_ca_caps);
649
650 return result;
651 }
652
653 static int dst_ca_open(struct inode *inode, struct file *file)
654 {
655 dprintk(verbose, DST_CA_DEBUG, 1, " Device opened [%p] ", file);
656 try_module_get(THIS_MODULE);
657
658 return 0;
659 }
660
661 static int dst_ca_release(struct inode *inode, struct file *file)
662 {
663 dprintk(verbose, DST_CA_DEBUG, 1, " Device closed.");
664 module_put(THIS_MODULE);
665
666 return 0;
667 }
668
669 static ssize_t dst_ca_read(struct file *file, char __user *buffer, size_t length, loff_t *offset)
670 {
671 ssize_t bytes_read = 0;
672
673 dprintk(verbose, DST_CA_DEBUG, 1, " Device read.");
674
675 return bytes_read;
676 }
677
678 static ssize_t dst_ca_write(struct file *file, const char __user *buffer, size_t length, loff_t *offset)
679 {
680 dprintk(verbose, DST_CA_DEBUG, 1, " Device write.");
681
682 return 0;
683 }
684
685 static struct file_operations dst_ca_fops = {
686 .owner = THIS_MODULE,
687 .ioctl = dst_ca_ioctl,
688 .open = dst_ca_open,
689 .release = dst_ca_release,
690 .read = dst_ca_read,
691 .write = dst_ca_write
692 };
693
694 static struct dvb_device dvbdev_ca = {
695 .priv = NULL,
696 .users = 1,
697 .readers = 1,
698 .writers = 1,
699 .fops = &dst_ca_fops
700 };
701
702 struct dvb_device *dst_ca_attach(struct dst_state *dst, struct dvb_adapter *dvb_adapter)
703 {
704 struct dvb_device *dvbdev;
705
706 dprintk(verbose, DST_CA_ERROR, 1, "registering DST-CA device");
707 if (dvb_register_device(dvb_adapter, &dvbdev, &dvbdev_ca, dst, DVB_DEVICE_CA) == 0) {
708 dst->dst_ca = dvbdev;
709 return dst->dst_ca;
710 }
711
712 return NULL;
713 }
714
715 EXPORT_SYMBOL(dst_ca_attach);
716
717 MODULE_DESCRIPTION("DST DVB-S/T/C Combo CA driver");
718 MODULE_AUTHOR("Manu Abraham");
719 MODULE_LICENSE("GPL");
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