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First Support on Ginger and OMAP TI
[linux-ginger.git] / drivers / media / dvb / bt8xx / dst_ca.c
blob0e246eaad05ab441360963e02672945e6d61534b
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/smp_lock.h>
25 #include <linux/string.h>
26 #include <linux/dvb/ca.h>
27 #include "dvbdev.h"
28 #include "dvb_frontend.h"
29 #include "dst_ca.h"
30 #include "dst_common.h"
31
32 #define DST_CA_ERROR 0
33 #define DST_CA_NOTICE 1
34 #define DST_CA_INFO 2
35 #define DST_CA_DEBUG 3
36
37 #define dprintk(x, y, z, format, arg...) do { \
38 if (z) { \
39 if ((x > DST_CA_ERROR) && (x > y)) \
40 printk(KERN_ERR "%s: " format "\n", __func__ , ##arg); \
41 else if ((x > DST_CA_NOTICE) && (x > y)) \
42 printk(KERN_NOTICE "%s: " format "\n", __func__ , ##arg); \
43 else if ((x > DST_CA_INFO) && (x > y)) \
44 printk(KERN_INFO "%s: " format "\n", __func__ , ##arg); \
45 else if ((x > DST_CA_DEBUG) && (x > y)) \
46 printk(KERN_DEBUG "%s: " format "\n", __func__ , ##arg); \
47 } else { \
48 if (x > y) \
49 printk(format, ## arg); \
50 } \
51 } while(0)
52
53
54 static unsigned int verbose = 5;
55 module_param(verbose, int, 0644);
56 MODULE_PARM_DESC(verbose, "verbose startup messages, default is 1 (yes)");
57
58 /* Need some more work */
59 static int ca_set_slot_descr(void)
60 {
61 /* We could make this more graceful ? */
62 return -EOPNOTSUPP;
63 }
64
65 /* Need some more work */
66 static int ca_set_pid(void)
67 {
68 /* We could make this more graceful ? */
69 return -EOPNOTSUPP;
70 }
71
72 static void put_command_and_length(u8 *data, int command, int length)
73 {
74 data[0] = (command >> 16) & 0xff;
75 data[1] = (command >> 8) & 0xff;
76 data[2] = command & 0xff;
77 data[3] = length;
78 }
79
80 static void put_checksum(u8 *check_string, int length)
81 {
82 dprintk(verbose, DST_CA_DEBUG, 1, " Computing string checksum.");
83 dprintk(verbose, DST_CA_DEBUG, 1, " -> string length : 0x%02x", length);
84 check_string[length] = dst_check_sum (check_string, length);
85 dprintk(verbose, DST_CA_DEBUG, 1, " -> checksum : 0x%02x", check_string[length]);
86 }
87
88 static int dst_ci_command(struct dst_state* state, u8 * data, u8 *ca_string, u8 len, int read)
89 {
90 u8 reply;
91
92 mutex_lock(&state->dst_mutex);
93 dst_comm_init(state);
94 msleep(65);
95
96 if (write_dst(state, data, len)) {
97 dprintk(verbose, DST_CA_INFO, 1, " Write not successful, trying to recover");
98 dst_error_recovery(state);
99 goto error;
100 }
101 if ((dst_pio_disable(state)) < 0) {
102 dprintk(verbose, DST_CA_ERROR, 1, " DST PIO disable failed.");
103 goto error;
104 }
105 if (read_dst(state, &reply, GET_ACK) < 0) {
106 dprintk(verbose, DST_CA_INFO, 1, " Read not successful, trying to recover");
107 dst_error_recovery(state);
108 goto error;
109 }
110 if (read) {
111 if (! dst_wait_dst_ready(state, LONG_DELAY)) {
112 dprintk(verbose, DST_CA_NOTICE, 1, " 8820 not ready");
113 goto error;
114 }
115 if (read_dst(state, ca_string, 128) < 0) { /* Try to make this dynamic */
116 dprintk(verbose, DST_CA_INFO, 1, " Read not successful, trying to recover");
117 dst_error_recovery(state);
118 goto error;
119 }
120 }
121 mutex_unlock(&state->dst_mutex);
122 return 0;
123
124 error:
125 mutex_unlock(&state->dst_mutex);
126 return -EIO;
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 dprintk(verbose, DST_CA_NOTICE, 1, " Put Command");
136 if (dst_ci_command(state, data, ca_string, len, read)) { // If error
137 dst_error_recovery(state);
138 dst_ca_comm_err++; // work required here.
139 } else {
140 break;
141 }
142 }
143
144 if(dst_ca_comm_err == RETRIES)
145 return -1;
146
147 return 0;
148 }
149
150
151
152 static int ca_get_app_info(struct dst_state *state)
153 {
154 int length, str_length;
155 static u8 command[8] = {0x07, 0x40, 0x01, 0x00, 0x01, 0x00, 0x00, 0xff};
156
157 put_checksum(&command[0], command[0]);
158 if ((dst_put_ci(state, command, sizeof(command), state->messages, GET_REPLY)) < 0) {
159 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
160 return -1;
161 }
162 dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
163 dprintk(verbose, DST_CA_INFO, 1, " ================================ CI Module Application Info ======================================");
164 dprintk(verbose, DST_CA_INFO, 1, " Application Type=[%d], Application Vendor=[%d], Vendor Code=[%d]\n%s: Application info=[%s]",
165 state->messages[7], (state->messages[8] << 8) | state->messages[9],
166 (state->messages[10] << 8) | state->messages[11], __func__, (char *)(&state->messages[12]));
167 dprintk(verbose, DST_CA_INFO, 1, " ==================================================================================================");
168
169 // Transform dst message to correct application_info message
170 length = state->messages[5];
171 str_length = length - 6;
172 if (str_length < 0) {
173 str_length = 0;
174 dprintk(verbose, DST_CA_ERROR, 1, "Invalid string length returned in ca_get_app_info(). Recovering.");
175 }
176
177 // First, the command and length fields
178 put_command_and_length(&state->messages[0], CA_APP_INFO, length);
179
180 // Copy application_type, application_manufacturer and manufacturer_code
181 memcpy(&state->messages[4], &state->messages[7], 5);
182
183 // Set string length and copy string
184 state->messages[9] = str_length;
185 memcpy(&state->messages[10], &state->messages[12], str_length);
186
187 return 0;
188 }
189
190 static int ca_get_ca_info(struct dst_state *state)
191 {
192 int srcPtr, dstPtr, i, num_ids;
193 static u8 slot_command[8] = {0x07, 0x40, 0x00, 0x00, 0x02, 0x00, 0x00, 0xff};
194 const int in_system_id_pos = 8, out_system_id_pos = 4, in_num_ids_pos = 7;
195
196 put_checksum(&slot_command[0], slot_command[0]);
197 if ((dst_put_ci(state, slot_command, sizeof (slot_command), state->messages, GET_REPLY)) < 0) {
198 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
199 return -1;
200 }
201 dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
202
203 // Print raw data
204 dprintk(verbose, DST_CA_INFO, 0, " DST data = [");
205 for (i = 0; i < state->messages[0] + 1; i++) {
206 dprintk(verbose, DST_CA_INFO, 0, " 0x%02x", state->messages[i]);
207 }
208 dprintk(verbose, DST_CA_INFO, 0, "]\n");
209
210 // Set the command and length of the output
211 num_ids = state->messages[in_num_ids_pos];
212 if (num_ids >= 100) {
213 num_ids = 100;
214 dprintk(verbose, DST_CA_ERROR, 1, "Invalid number of ids (>100). Recovering.");
215 }
216 put_command_and_length(&state->messages[0], CA_INFO, num_ids * 2);
217
218 dprintk(verbose, DST_CA_INFO, 0, " CA_INFO = [");
219 srcPtr = in_system_id_pos;
220 dstPtr = out_system_id_pos;
221 for(i = 0; i < num_ids; i++) {
222 dprintk(verbose, DST_CA_INFO, 0, " 0x%02x%02x", state->messages[srcPtr + 0], state->messages[srcPtr + 1]);
223 // Append to output
224 state->messages[dstPtr + 0] = state->messages[srcPtr + 0];
225 state->messages[dstPtr + 1] = state->messages[srcPtr + 1];
226 srcPtr += 2;
227 dstPtr += 2;
228 }
229 dprintk(verbose, DST_CA_INFO, 0, "]\n");
230
231 return 0;
232 }
233
234 static int ca_get_slot_caps(struct dst_state *state, struct ca_caps *p_ca_caps, void __user *arg)
235 {
236 int i;
237 u8 slot_cap[256];
238 static u8 slot_command[8] = {0x07, 0x40, 0x02, 0x00, 0x02, 0x00, 0x00, 0xff};
239
240 put_checksum(&slot_command[0], slot_command[0]);
241 if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_cap, GET_REPLY)) < 0) {
242 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
243 return -1;
244 }
245 dprintk(verbose, DST_CA_NOTICE, 1, " -->dst_put_ci SUCCESS !");
246
247 /* Will implement the rest soon */
248
249 dprintk(verbose, DST_CA_INFO, 1, " Slot cap = [%d]", slot_cap[7]);
250 dprintk(verbose, DST_CA_INFO, 0, "===================================\n");
251 for (i = 0; i < slot_cap[0] + 1; i++)
252 dprintk(verbose, DST_CA_INFO, 0, " %d", slot_cap[i]);
253 dprintk(verbose, DST_CA_INFO, 0, "\n");
254
255 p_ca_caps->slot_num = 1;
256 p_ca_caps->slot_type = 1;
257 p_ca_caps->descr_num = slot_cap[7];
258 p_ca_caps->descr_type = 1;
259
260 if (copy_to_user(arg, p_ca_caps, sizeof (struct ca_caps)))
261 return -EFAULT;
262
263 return 0;
264 }
265
266 /* Need some more work */
267 static int ca_get_slot_descr(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
268 {
269 return -EOPNOTSUPP;
270 }
271
272
273 static int ca_get_slot_info(struct dst_state *state, struct ca_slot_info *p_ca_slot_info, void __user *arg)
274 {
275 int i;
276 static u8 slot_command[8] = {0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff};
277
278 u8 *slot_info = state->messages;
279
280 put_checksum(&slot_command[0], 7);
281 if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_info, GET_REPLY)) < 0) {
282 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
283 return -1;
284 }
285 dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
286
287 /* Will implement the rest soon */
288
289 dprintk(verbose, DST_CA_INFO, 1, " Slot info = [%d]", slot_info[3]);
290 dprintk(verbose, DST_CA_INFO, 0, "===================================\n");
291 for (i = 0; i < 8; i++)
292 dprintk(verbose, DST_CA_INFO, 0, " %d", slot_info[i]);
293 dprintk(verbose, DST_CA_INFO, 0, "\n");
294
295 if (slot_info[4] & 0x80) {
296 p_ca_slot_info->flags = CA_CI_MODULE_PRESENT;
297 p_ca_slot_info->num = 1;
298 p_ca_slot_info->type = CA_CI;
299 } else if (slot_info[4] & 0x40) {
300 p_ca_slot_info->flags = CA_CI_MODULE_READY;
301 p_ca_slot_info->num = 1;
302 p_ca_slot_info->type = CA_CI;
303 } else
304 p_ca_slot_info->flags = 0;
305
306 if (copy_to_user(arg, p_ca_slot_info, sizeof (struct ca_slot_info)))
307 return -EFAULT;
308
309 return 0;
310 }
311
312
313 static int ca_get_message(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
314 {
315 u8 i = 0;
316 u32 command = 0;
317
318 if (copy_from_user(p_ca_message, arg, sizeof (struct ca_msg)))
319 return -EFAULT;
320
321 if (p_ca_message->msg) {
322 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]);
323
324 for (i = 0; i < 3; i++) {
325 command = command | p_ca_message->msg[i];
326 if (i < 2)
327 command = command << 8;
328 }
329 dprintk(verbose, DST_CA_NOTICE, 1, " Command=[0x%x]", command);
330
331 switch (command) {
332 case CA_APP_INFO:
333 memcpy(p_ca_message->msg, state->messages, 128);
334 if (copy_to_user(arg, p_ca_message, sizeof (struct ca_msg)) )
335 return -EFAULT;
336 break;
337 case CA_INFO:
338 memcpy(p_ca_message->msg, state->messages, 128);
339 if (copy_to_user(arg, p_ca_message, sizeof (struct ca_msg)) )
340 return -EFAULT;
341 break;
342 }
343 }
344
345 return 0;
346 }
347
348 static int handle_dst_tag(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u32 length)
349 {
350 if (state->dst_hw_cap & DST_TYPE_HAS_SESSION) {
351 hw_buffer->msg[2] = p_ca_message->msg[1]; /* MSB */
352 hw_buffer->msg[3] = p_ca_message->msg[2]; /* LSB */
353 } else {
354 if (length > 247) {
355 dprintk(verbose, DST_CA_ERROR, 1, " Message too long ! *** Bailing Out *** !");
356 return -1;
357 }
358 hw_buffer->msg[0] = (length & 0xff) + 7;
359 hw_buffer->msg[1] = 0x40;
360 hw_buffer->msg[2] = 0x03;
361 hw_buffer->msg[3] = 0x00;
362 hw_buffer->msg[4] = 0x03;
363 hw_buffer->msg[5] = length & 0xff;
364 hw_buffer->msg[6] = 0x00;
365
366 /*
367 * Need to compute length for EN50221 section 8.3.2, for the time being
368 * assuming 8.3.2 is not applicable
369 */
370 memcpy(&hw_buffer->msg[7], &p_ca_message->msg[4], length);
371 }
372
373 return 0;
374 }
375
376 static int write_to_8820(struct dst_state *state, struct ca_msg *hw_buffer, u8 length, u8 reply)
377 {
378 if ((dst_put_ci(state, hw_buffer->msg, length, hw_buffer->msg, reply)) < 0) {
379 dprintk(verbose, DST_CA_ERROR, 1, " DST-CI Command failed.");
380 dprintk(verbose, DST_CA_NOTICE, 1, " Resetting DST.");
381 rdc_reset_state(state);
382 return -1;
383 }
384 dprintk(verbose, DST_CA_NOTICE, 1, " DST-CI Command success.");
385
386 return 0;
387 }
388
389 static u32 asn_1_decode(u8 *asn_1_array)
390 {
391 u8 length_field = 0, word_count = 0, count = 0;
392 u32 length = 0;
393
394 length_field = asn_1_array[0];
395 dprintk(verbose, DST_CA_DEBUG, 1, " Length field=[%02x]", length_field);
396 if (length_field < 0x80) {
397 length = length_field & 0x7f;
398 dprintk(verbose, DST_CA_DEBUG, 1, " Length=[%02x]\n", length);
399 } else {
400 word_count = length_field & 0x7f;
401 for (count = 0; count < word_count; count++) {
402 length = length << 8;
403 length += asn_1_array[count + 1];
404 dprintk(verbose, DST_CA_DEBUG, 1, " Length=[%04x]", length);
405 }
406 }
407 return length;
408 }
409
410 static int debug_string(u8 *msg, u32 length, u32 offset)
411 {
412 u32 i;
413
414 dprintk(verbose, DST_CA_DEBUG, 0, " String=[ ");
415 for (i = offset; i < length; i++)
416 dprintk(verbose, DST_CA_DEBUG, 0, "%02x ", msg[i]);
417 dprintk(verbose, DST_CA_DEBUG, 0, "]\n");
418
419 return 0;
420 }
421
422
423 static int ca_set_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u8 reply, u8 query)
424 {
425 u32 length = 0;
426 u8 tag_length = 8;
427
428 length = asn_1_decode(&p_ca_message->msg[3]);
429 dprintk(verbose, DST_CA_DEBUG, 1, " CA Message length=[%d]", length);
430 debug_string(&p_ca_message->msg[4], length, 0); /* length is excluding tag & length */
431
432 memset(hw_buffer->msg, '\0', length);
433 handle_dst_tag(state, p_ca_message, hw_buffer, length);
434 put_checksum(hw_buffer->msg, hw_buffer->msg[0]);
435
436 debug_string(hw_buffer->msg, (length + tag_length), 0); /* tags too */
437 write_to_8820(state, hw_buffer, (length + tag_length), reply);
438
439 return 0;
440 }
441
442
443 /* Board supports CA PMT reply ? */
444 static int dst_check_ca_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer)
445 {
446 int ca_pmt_reply_test = 0;
447
448 /* Do test board */
449 /* Not there yet but soon */
450
451 /* CA PMT Reply capable */
452 if (ca_pmt_reply_test) {
453 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 1, GET_REPLY)) < 0) {
454 dprintk(verbose, DST_CA_ERROR, 1, " ca_set_pmt.. failed !");
455 return -1;
456 }
457
458 /* Process CA PMT Reply */
459 /* will implement soon */
460 dprintk(verbose, DST_CA_ERROR, 1, " Not there yet");
461 }
462 /* CA PMT Reply not capable */
463 if (!ca_pmt_reply_test) {
464 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, NO_REPLY)) < 0) {
465 dprintk(verbose, DST_CA_ERROR, 1, " ca_set_pmt.. failed !");
466 return -1;
467 }
468 dprintk(verbose, DST_CA_NOTICE, 1, " ca_set_pmt.. success !");
469 /* put a dummy message */
470
471 }
472 return 0;
473 }
474
475 static int ca_send_message(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
476 {
477 int i = 0;
478 unsigned int ca_message_header_len;
479
480 u32 command = 0;
481 struct ca_msg *hw_buffer;
482 int result = 0;
483
484 if ((hw_buffer = kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) {
485 dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure");
486 return -ENOMEM;
487 }
488 dprintk(verbose, DST_CA_DEBUG, 1, " ");
489
490 if (copy_from_user(p_ca_message, arg, sizeof (struct ca_msg))) {
491 result = -EFAULT;
492 goto free_mem_and_exit;
493 }
494
495
496 if (p_ca_message->msg) {
497 ca_message_header_len = p_ca_message->length; /* Restore it back when you are done */
498 /* EN50221 tag */
499 command = 0;
500
501 for (i = 0; i < 3; i++) {
502 command = command | p_ca_message->msg[i];
503 if (i < 2)
504 command = command << 8;
505 }
506 dprintk(verbose, DST_CA_DEBUG, 1, " Command=[0x%x]\n", command);
507
508 switch (command) {
509 case CA_PMT:
510 dprintk(verbose, DST_CA_DEBUG, 1, "Command = SEND_CA_PMT");
511 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, 0)) < 0) { // code simplification started
512 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_PMT Failed !");
513 result = -1;
514 goto free_mem_and_exit;
515 }
516 dprintk(verbose, DST_CA_INFO, 1, " -->CA_PMT Success !");
517 break;
518 case CA_PMT_REPLY:
519 dprintk(verbose, DST_CA_INFO, 1, "Command = CA_PMT_REPLY");
520 /* Have to handle the 2 basic types of cards here */
521 if ((dst_check_ca_pmt(state, p_ca_message, hw_buffer)) < 0) {
522 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_PMT_REPLY Failed !");
523 result = -1;
524 goto free_mem_and_exit;
525 }
526 dprintk(verbose, DST_CA_INFO, 1, " -->CA_PMT_REPLY Success !");
527 break;
528 case CA_APP_INFO_ENQUIRY: // only for debugging
529 dprintk(verbose, DST_CA_INFO, 1, " Getting Cam Application information");
530
531 if ((ca_get_app_info(state)) < 0) {
532 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_APP_INFO_ENQUIRY Failed !");
533 result = -1;
534 goto free_mem_and_exit;
535 }
536 dprintk(verbose, DST_CA_INFO, 1, " -->CA_APP_INFO_ENQUIRY Success !");
537 break;
538 case CA_INFO_ENQUIRY:
539 dprintk(verbose, DST_CA_INFO, 1, " Getting CA Information");
540
541 if ((ca_get_ca_info(state)) < 0) {
542 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_INFO_ENQUIRY Failed !");
543 result = -1;
544 goto free_mem_and_exit;
545 }
546 dprintk(verbose, DST_CA_INFO, 1, " -->CA_INFO_ENQUIRY Success !");
547 break;
548 }
549 }
550 free_mem_and_exit:
551 kfree (hw_buffer);
552
553 return result;
554 }
555
556 static long dst_ca_ioctl(struct file *file, unsigned int cmd, unsigned long ioctl_arg)
557 {
558 struct dvb_device *dvbdev;
559 struct dst_state *state;
560 struct ca_slot_info *p_ca_slot_info;
561 struct ca_caps *p_ca_caps;
562 struct ca_msg *p_ca_message;
563 void __user *arg = (void __user *)ioctl_arg;
564 int result = 0;
565
566 lock_kernel();
567 dvbdev = (struct dvb_device *)file->private_data;
568 state = (struct dst_state *)dvbdev->priv;
569 p_ca_message = kmalloc(sizeof (struct ca_msg), GFP_KERNEL);
570 p_ca_slot_info = kmalloc(sizeof (struct ca_slot_info), GFP_KERNEL);
571 p_ca_caps = kmalloc(sizeof (struct ca_caps), GFP_KERNEL);
572 if (!p_ca_message || !p_ca_slot_info || !p_ca_caps) {
573 dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure");
574 result = -ENOMEM;
575 goto free_mem_and_exit;
576 }
577
578 /* We have now only the standard ioctl's, the driver is upposed to handle internals. */
579 switch (cmd) {
580 case CA_SEND_MSG:
581 dprintk(verbose, DST_CA_INFO, 1, " Sending message");
582 if ((ca_send_message(state, p_ca_message, arg)) < 0) {
583 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SEND_MSG Failed !");
584 result = -1;
585 goto free_mem_and_exit;
586 }
587 break;
588 case CA_GET_MSG:
589 dprintk(verbose, DST_CA_INFO, 1, " Getting message");
590 if ((ca_get_message(state, p_ca_message, arg)) < 0) {
591 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_MSG Failed !");
592 result = -1;
593 goto free_mem_and_exit;
594 }
595 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_MSG Success !");
596 break;
597 case CA_RESET:
598 dprintk(verbose, DST_CA_ERROR, 1, " Resetting DST");
599 dst_error_bailout(state);
600 msleep(4000);
601 break;
602 case CA_GET_SLOT_INFO:
603 dprintk(verbose, DST_CA_INFO, 1, " Getting Slot info");
604 if ((ca_get_slot_info(state, p_ca_slot_info, arg)) < 0) {
605 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_SLOT_INFO Failed !");
606 result = -1;
607 goto free_mem_and_exit;
608 }
609 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_SLOT_INFO Success !");
610 break;
611 case CA_GET_CAP:
612 dprintk(verbose, DST_CA_INFO, 1, " Getting Slot capabilities");
613 if ((ca_get_slot_caps(state, p_ca_caps, arg)) < 0) {
614 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_CAP Failed !");
615 result = -1;
616 goto free_mem_and_exit;
617 }
618 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_CAP Success !");
619 break;
620 case CA_GET_DESCR_INFO:
621 dprintk(verbose, DST_CA_INFO, 1, " Getting descrambler description");
622 if ((ca_get_slot_descr(state, p_ca_message, arg)) < 0) {
623 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_DESCR_INFO Failed !");
624 result = -1;
625 goto free_mem_and_exit;
626 }
627 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_DESCR_INFO Success !");
628 break;
629 case CA_SET_DESCR:
630 dprintk(verbose, DST_CA_INFO, 1, " Setting descrambler");
631 if ((ca_set_slot_descr()) < 0) {
632 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SET_DESCR Failed !");
633 result = -1;
634 goto free_mem_and_exit;
635 }
636 dprintk(verbose, DST_CA_INFO, 1, " -->CA_SET_DESCR Success !");
637 break;
638 case CA_SET_PID:
639 dprintk(verbose, DST_CA_INFO, 1, " Setting PID");
640 if ((ca_set_pid()) < 0) {
641 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SET_PID Failed !");
642 result = -1;
643 goto free_mem_and_exit;
644 }
645 dprintk(verbose, DST_CA_INFO, 1, " -->CA_SET_PID Success !");
646 default:
647 result = -EOPNOTSUPP;
648 };
649 free_mem_and_exit:
650 kfree (p_ca_message);
651 kfree (p_ca_slot_info);
652 kfree (p_ca_caps);
653
654 unlock_kernel();
655 return result;
656 }
657
658 static int dst_ca_open(struct inode *inode, struct file *file)
659 {
660 dprintk(verbose, DST_CA_DEBUG, 1, " Device opened [%p] ", file);
661 try_module_get(THIS_MODULE);
662
663 return 0;
664 }
665
666 static int dst_ca_release(struct inode *inode, struct file *file)
667 {
668 dprintk(verbose, DST_CA_DEBUG, 1, " Device closed.");
669 module_put(THIS_MODULE);
670
671 return 0;
672 }
673
674 static ssize_t dst_ca_read(struct file *file, char __user *buffer, size_t length, loff_t *offset)
675 {
676 ssize_t bytes_read = 0;
677
678 dprintk(verbose, DST_CA_DEBUG, 1, " Device read.");
679
680 return bytes_read;
681 }
682
683 static ssize_t dst_ca_write(struct file *file, const char __user *buffer, size_t length, loff_t *offset)
684 {
685 dprintk(verbose, DST_CA_DEBUG, 1, " Device write.");
686
687 return 0;
688 }
689
690 static const struct file_operations dst_ca_fops = {
691 .owner = THIS_MODULE,
692 .unlocked_ioctl = dst_ca_ioctl,
693 .open = dst_ca_open,
694 .release = dst_ca_release,
695 .read = dst_ca_read,
696 .write = dst_ca_write
697 };
698
699 static struct dvb_device dvbdev_ca = {
700 .priv = NULL,
701 .users = 1,
702 .readers = 1,
703 .writers = 1,
704 .fops = &dst_ca_fops
705 };
706
707 struct dvb_device *dst_ca_attach(struct dst_state *dst, struct dvb_adapter *dvb_adapter)
708 {
709 struct dvb_device *dvbdev;
710
711 dprintk(verbose, DST_CA_ERROR, 1, "registering DST-CA device");
712 if (dvb_register_device(dvb_adapter, &dvbdev, &dvbdev_ca, dst, DVB_DEVICE_CA) == 0) {
713 dst->dst_ca = dvbdev;
714 return dst->dst_ca;
715 }
716
717 return NULL;
718 }
719
720 EXPORT_SYMBOL(dst_ca_attach);
721
722 MODULE_DESCRIPTION("DST DVB-S/T/C Combo CA driver");
723 MODULE_AUTHOR("Manu Abraham");
724 MODULE_LICENSE("GPL");
Linux for Ginger Game Console