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[PATCH] dvb: dst: ASN.1 length field Fix
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / dvb / bt8xx / dst_ca.c
CommitLineData
50b215a0
JS		 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
50b215a0
JS		 21#include <linux/kernel.h>
22#include <linux/module.h>
23#include <linux/init.h>
24#include <linux/string.h>
50b215a0
JS		 25#include <linux/dvb/ca.h>
26#include "dvbdev.h"
27#include "dvb_frontend.h"
50b215a0
JS		 28#include "dst_ca.h"
29#include "dst_common.h"
30
a427de6f
MA		 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
7d53421c 53static unsigned int verbose = 5;
50b215a0
JS		 54module_param(verbose, int, 0644);
55MODULE_PARM_DESC(verbose, "verbose startup messages, default is 1 (yes)");
56
4a2cc126 57/* Need some more work */
50b215a0
JS		 58static int ca_set_slot_descr(void)
59{
60 /* We could make this more graceful ? */
61 return -EOPNOTSUPP;
62}
63
4a2cc126 64/* Need some more work */
50b215a0
JS		 65static int ca_set_pid(void)
66{
67 /* We could make this more graceful ? */
68 return -EOPNOTSUPP;
69}
70
71
72static int put_checksum(u8 *check_string, int length)
73{
74 u8 i = 0, checksum = 0;
75
a427de6f
MA		 76 dprintk(verbose, DST_CA_DEBUG, 1, " ========================= Checksum calculation ===========================");
77 dprintk(verbose, DST_CA_DEBUG, 1, " String Length=[0x%02x]", length);
78 dprintk(verbose, DST_CA_DEBUG, 1, " String=[");
50b215a0 79
50b215a0 80 while (i < length) {
a427de6f 81 dprintk(verbose, DST_CA_DEBUG, 0, " %02x", check_string[i]);
50b215a0
JS		 82 checksum += check_string[i];
83 i++;
84 }
a427de6f
MA		 85 dprintk(verbose, DST_CA_DEBUG, 0, " ]\n");
86 dprintk(verbose, DST_CA_DEBUG, 1, "Sum=[%02x]\n", checksum);
50b215a0 87 check_string[length] = ~checksum + 1;
a427de6f
MA		 88 dprintk(verbose, DST_CA_DEBUG, 1, " Checksum=[%02x]", check_string[length]);
89 dprintk(verbose, DST_CA_DEBUG, 1, " ==========================================================================");
50b215a0
JS		 90
91 return 0;
92}
93
94static int dst_ci_command(struct dst_state* state, u8 * data, u8 *ca_string, u8 len, int read)
95{
96 u8 reply;
97
98 dst_comm_init(state);
99 msleep(65);
100
101 if (write_dst(state, data, len)) {
a427de6f 102 dprintk(verbose, DST_CA_INFO, 1, " Write not successful, trying to recover");
50b215a0
JS		 103 dst_error_recovery(state);
104 return -1;
105 }
50b215a0 106 if ((dst_pio_disable(state)) < 0) {
a427de6f 107 dprintk(verbose, DST_CA_ERROR, 1, " DST PIO disable failed.");
50b215a0
JS		 108 return -1;
109 }
50b215a0 110 if (read_dst(state, &reply, GET_ACK) < 0) {
a427de6f 111 dprintk(verbose, DST_CA_INFO, 1, " Read not successful, trying to recover");
50b215a0
JS		 112 dst_error_recovery(state);
113 return -1;
114 }
50b215a0
JS		 115 if (read) {
116 if (! dst_wait_dst_ready(state, LONG_DELAY)) {
a427de6f 117 dprintk(verbose, DST_CA_NOTICE, 1, " 8820 not ready");
50b215a0
JS		 118 return -1;
119 }
50b215a0 120 if (read_dst(state, ca_string, 128) < 0) { /* Try to make this dynamic */
a427de6f 121 dprintk(verbose, DST_CA_INFO, 1, " Read not successful, trying to recover");
50b215a0
JS		 122 dst_error_recovery(state);
123 return -1;
124 }
125 }
126
127 return 0;
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 dst_comm_init(state);
a427de6f 137 dprintk(verbose, DST_CA_NOTICE, 1, " Put Command");
50b215a0
JS		 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
150static 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) {
a427de6f 156 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
50b215a0
JS		 157 return -1;
158 }
a427de6f
MA		 159 dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
160 dprintk(verbose, DST_CA_INFO, 1, " ================================ CI Module Application Info ======================================");
161 dprintk(verbose, DST_CA_INFO, 1, " Application Type=[%d], Application Vendor=[%d], Vendor Code=[%d]\n%s: Application info=[%s]",
162 state->messages[7], (state->messages[8] << 8) | state->messages[9],
163 (state->messages[10] << 8) | state->messages[11], __FUNCTION__, (char *)(&state->messages[12]));
164 dprintk(verbose, DST_CA_INFO, 1, " ==================================================================================================");
50b215a0
JS		 165
166 return 0;
167}
168
169static int ca_get_slot_caps(struct dst_state *state, struct ca_caps *p_ca_caps, void *arg)
170{
171 int i;
172 u8 slot_cap[256];
173 static u8 slot_command[8] = {0x07, 0x40, 0x02, 0x00, 0x02, 0x00, 0x00, 0xff};
174
175 put_checksum(&slot_command[0], slot_command[0]);
176 if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_cap, GET_REPLY)) < 0) {
a427de6f 177 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
50b215a0
JS		 178 return -1;
179 }
a427de6f 180 dprintk(verbose, DST_CA_NOTICE, 1, " -->dst_put_ci SUCCESS !");
50b215a0
JS		 181
182 /* Will implement the rest soon */
183
a427de6f
MA		 184 dprintk(verbose, DST_CA_INFO, 1, " Slot cap = [%d]", slot_cap[7]);
185 dprintk(verbose, DST_CA_INFO, 0, "===================================\n");
186 for (i = 0; i < 8; i++)
187 dprintk(verbose, DST_CA_INFO, 0, " %d", slot_cap[i]);
188 dprintk(verbose, DST_CA_INFO, 0, "\n");
50b215a0
JS		 189
190 p_ca_caps->slot_num = 1;
191 p_ca_caps->slot_type = 1;
192 p_ca_caps->descr_num = slot_cap[7];
193 p_ca_caps->descr_type = 1;
194
a427de6f 195 if (copy_to_user((struct ca_caps *)arg, p_ca_caps, sizeof (struct ca_caps)))
50b215a0 196 return -EFAULT;
50b215a0
JS		 197
198 return 0;
199}
200
4a2cc126 201/* Need some more work */
50b215a0
JS		 202static int ca_get_slot_descr(struct dst_state *state, struct ca_msg *p_ca_message, void *arg)
203{
204 return -EOPNOTSUPP;
205}
206
207
208static int ca_get_slot_info(struct dst_state *state, struct ca_slot_info *p_ca_slot_info, void *arg)
209{
210 int i;
211 static u8 slot_command[8] = {0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff};
212
213 u8 *slot_info = state->rxbuffer;
214
215 put_checksum(&slot_command[0], 7);
216 if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_info, GET_REPLY)) < 0) {
a427de6f 217 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
50b215a0
JS		 218 return -1;
219 }
a427de6f 220 dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
50b215a0
JS		 221
222 /* Will implement the rest soon */
223
a427de6f
MA		 224 dprintk(verbose, DST_CA_INFO, 1, " Slot info = [%d]", slot_info[3]);
225 dprintk(verbose, DST_CA_INFO, 0, "===================================\n");
226 for (i = 0; i < 8; i++)
227 dprintk(verbose, DST_CA_INFO, 0, " %d", slot_info[i]);
228 dprintk(verbose, DST_CA_INFO, 0, "\n");
50b215a0
JS		 229
230 if (slot_info[4] & 0x80) {
231 p_ca_slot_info->flags = CA_CI_MODULE_PRESENT;
232 p_ca_slot_info->num = 1;
233 p_ca_slot_info->type = CA_CI;
a427de6f 234 } else if (slot_info[4] & 0x40) {
50b215a0
JS		 235 p_ca_slot_info->flags = CA_CI_MODULE_READY;
236 p_ca_slot_info->num = 1;
237 p_ca_slot_info->type = CA_CI;
a427de6f 238 } else
50b215a0 239 p_ca_slot_info->flags = 0;
50b215a0 240
a427de6f 241 if (copy_to_user((struct ca_slot_info *)arg, p_ca_slot_info, sizeof (struct ca_slot_info)))
50b215a0 242 return -EFAULT;
50b215a0
JS		 243
244 return 0;
245}
246
247
50b215a0
JS		 248static int ca_get_message(struct dst_state *state, struct ca_msg *p_ca_message, void *arg)
249{
250 u8 i = 0;
251 u32 command = 0;
252
253 if (copy_from_user(p_ca_message, (void *)arg, sizeof (struct ca_msg)))
254 return -EFAULT;
255
50b215a0 256 if (p_ca_message->msg) {
a427de6f 257 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]);
50b215a0
JS		 258
259 for (i = 0; i < 3; i++) {
260 command = command | p_ca_message->msg[i];
261 if (i < 2)
262 command = command << 8;
263 }
a427de6f 264 dprintk(verbose, DST_CA_NOTICE, 1, " Command=[0x%x]", command);
50b215a0
JS		 265
266 switch (command) {
a427de6f
MA		 267 case CA_APP_INFO:
268 memcpy(p_ca_message->msg, state->messages, 128);
269 if (copy_to_user((void *)arg, p_ca_message, sizeof (struct ca_msg)) )
270 return -EFAULT;
50b215a0
JS		 271 break;
272 }
273 }
274
275 return 0;
276}
277
7d53421c 278static int handle_dst_tag(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u32 length)
50b215a0 279{
4a2cc126 280 if (state->dst_hw_cap & DST_TYPE_HAS_SESSION) {
94b7410c
MA		 281 hw_buffer->msg[2] = p_ca_message->msg[1]; /* MSB */
282 hw_buffer->msg[3] = p_ca_message->msg[2]; /* LSB */
283 } else {
284 if (length > 247) {
a427de6f 285 dprintk(verbose, DST_CA_ERROR, 1, " Message too long ! *** Bailing Out *** !");
94b7410c
MA		 286 return -1;
287 }
7d53421c
MA		 288 hw_buffer->msg[0] = (length & 0xff) + 7;
289 hw_buffer->msg[1] = 0x40;
50b215a0
JS		 290 hw_buffer->msg[2] = 0x03;
291 hw_buffer->msg[3] = 0x00;
7d53421c
MA		 292 hw_buffer->msg[4] = 0x03;
293 hw_buffer->msg[5] = length & 0xff;
294 hw_buffer->msg[6] = 0x00;
94b7410c
MA		 295 /*
296 * Need to compute length for EN50221 section 8.3.2, for the time being
297 * assuming 8.3.2 is not applicable
298 */
299 memcpy(&hw_buffer->msg[7], &p_ca_message->msg[4], length);
50b215a0
JS		 300 }
301 return 0;
302}
303
50b215a0 304
7d53421c 305static int write_to_8820(struct dst_state *state, struct ca_msg *hw_buffer, u8 length, u8 reply)
50b215a0 306{
7d53421c 307 if ((dst_put_ci(state, hw_buffer->msg, length, hw_buffer->msg, reply)) < 0) {
a427de6f
MA		 308 dprintk(verbose, DST_CA_ERROR, 1, " DST-CI Command failed.");
309 dprintk(verbose, DST_CA_NOTICE, 1, " Resetting DST.");
50b215a0
JS		 310 rdc_reset_state(state);
311 return -1;
312 }
a427de6f 313 dprintk(verbose, DST_CA_NOTICE, 1, " DST-CI Command succes.");
50b215a0
JS		 314
315 return 0;
316}
317
7d53421c 318u32 asn_1_decode(u8 *asn_1_array)
50b215a0 319{
7d53421c
MA		 320 u8 length_field = 0, word_count = 0, count = 0;
321 u32 length = 0;
322
323 length_field = asn_1_array[0];
a427de6f 324 dprintk(verbose, DST_CA_DEBUG, 1, " Length field=[%02x]", length_field);
7d53421c
MA		 325 if (length_field < 0x80) {
326 length = length_field & 0x7f;
a427de6f 327 dprintk(verbose, DST_CA_DEBUG, 1, " Length=[%02x]\n", length);
7d53421c
MA		 328 } else {
329 word_count = length_field & 0x7f;
330 for (count = 0; count < word_count; count++) {
93a14f15
RM		 331 length = length << 8;
332 length += asn_1_array[count + 1];
a427de6f 333 dprintk(verbose, DST_CA_DEBUG, 1, " Length=[%04x]", length);
50b215a0
JS		 334 }
335 }
7d53421c
MA		 336 return length;
337}
50b215a0 338
7d53421c
MA		 339static int debug_string(u8 *msg, u32 length, u32 offset)
340{
341 u32 i;
50b215a0 342
a427de6f 343 dprintk(verbose, DST_CA_DEBUG, 0, " String=[ ");
7d53421c 344 for (i = offset; i < length; i++)
a427de6f
MA		 345 dprintk(verbose, DST_CA_DEBUG, 0, "%02x ", msg[i]);
346 dprintk(verbose, DST_CA_DEBUG, 0, "]\n");
50b215a0 347
7d53421c
MA		 348 return 0;
349}
50b215a0 350
7d53421c
MA		 351static int ca_set_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u8 reply, u8 query)
352{
94b7410c
MA		 353 u32 length = 0;
354 u8 tag_length = 8;
50b215a0 355
7d53421c 356 length = asn_1_decode(&p_ca_message->msg[3]);
a427de6f 357 dprintk(verbose, DST_CA_DEBUG, 1, " CA Message length=[%d]", length);
94b7410c 358 debug_string(&p_ca_message->msg[4], length, 0); /* length is excluding tag & length */
50b215a0 359
94b7410c 360 memset(hw_buffer->msg, '\0', length);
7d53421c 361 handle_dst_tag(state, p_ca_message, hw_buffer, length);
94b7410c 362 put_checksum(hw_buffer->msg, hw_buffer->msg[0]);
50b215a0 363
94b7410c
MA		 364 debug_string(hw_buffer->msg, (length + tag_length), 0); /* tags too */
365 write_to_8820(state, hw_buffer, (length + tag_length), reply);
50b215a0
JS		 366
367 return 0;
368}
369
7d53421c 370
50b215a0
JS		 371/* Board supports CA PMT reply ? */
372static int dst_check_ca_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer)
373{
374 int ca_pmt_reply_test = 0;
375
376 /* Do test board */
377 /* Not there yet but soon */
378
50b215a0
JS		 379 /* CA PMT Reply capable */
380 if (ca_pmt_reply_test) {
381 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 1, GET_REPLY)) < 0) {
a427de6f 382 dprintk(verbose, DST_CA_ERROR, 1, " ca_set_pmt.. failed !");
50b215a0
JS		 383 return -1;
384 }
385
386 /* Process CA PMT Reply */
387 /* will implement soon */
a427de6f 388 dprintk(verbose, DST_CA_ERROR, 1, " Not there yet");
50b215a0
JS		 389 }
390 /* CA PMT Reply not capable */
391 if (!ca_pmt_reply_test) {
392 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, NO_REPLY)) < 0) {
a427de6f 393 dprintk(verbose, DST_CA_ERROR, 1, " ca_set_pmt.. failed !");
50b215a0
JS		 394 return -1;
395 }
a427de6f 396 dprintk(verbose, DST_CA_NOTICE, 1, " ca_set_pmt.. success !");
50b215a0
JS		 397 /* put a dummy message */
398
399 }
400 return 0;
401}
402
403static int ca_send_message(struct dst_state *state, struct ca_msg *p_ca_message, void *arg)
404{
405 int i = 0;
406 unsigned int ca_message_header_len;
407
408 u32 command = 0;
409 struct ca_msg *hw_buffer;
410
411 if ((hw_buffer = (struct ca_msg *) kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) {
a427de6f 412 dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure");
50b215a0
JS		 413 return -ENOMEM;
414 }
a427de6f 415 dprintk(verbose, DST_CA_DEBUG, 1, " ");
50b215a0
JS		 416
417 if (copy_from_user(p_ca_message, (void *)arg, sizeof (struct ca_msg)))
418 return -EFAULT;
419
420 if (p_ca_message->msg) {
421 ca_message_header_len = p_ca_message->length; /* Restore it back when you are done */
422 /* EN50221 tag */
423 command = 0;
424
425 for (i = 0; i < 3; i++) {
426 command = command | p_ca_message->msg[i];
427 if (i < 2)
428 command = command << 8;
429 }
a427de6f 430 dprintk(verbose, DST_CA_DEBUG, 1, " Command=[0x%x]\n", command);
50b215a0
JS		 431
432 switch (command) {
a427de6f
MA		 433 case CA_PMT:
434 dprintk(verbose, DST_CA_DEBUG, 1, "Command = SEND_CA_PMT");
435 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, 0)) < 0) { // code simplification started
436 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_PMT Failed !");
437 return -1;
438 }
439 dprintk(verbose, DST_CA_INFO, 1, " -->CA_PMT Success !");
440 break;
441 case CA_PMT_REPLY:
442 dprintk(verbose, DST_CA_INFO, 1, "Command = CA_PMT_REPLY");
443 /* Have to handle the 2 basic types of cards here */
444 if ((dst_check_ca_pmt(state, p_ca_message, hw_buffer)) < 0) {
445 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_PMT_REPLY Failed !");
446 return -1;
447 }
448 dprintk(verbose, DST_CA_INFO, 1, " -->CA_PMT_REPLY Success !");
449 break;
450 case CA_APP_INFO_ENQUIRY: // only for debugging
451 dprintk(verbose, DST_CA_INFO, 1, " Getting Cam Application information");
452
453 if ((ca_get_app_info(state)) < 0) {
454 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_APP_INFO_ENQUIRY Failed !");
455 return -1;
456 }
457 dprintk(verbose, DST_CA_INFO, 1, " -->CA_APP_INFO_ENQUIRY Success !");
458 break;
50b215a0
JS		 459 }
460 }
461 return 0;
462}
463
464static int dst_ca_ioctl(struct inode *inode, struct file *file, unsigned int cmd, void *arg)
465{
466 struct dvb_device* dvbdev = (struct dvb_device*) file->private_data;
467 struct dst_state* state = (struct dst_state*) dvbdev->priv;
468 struct ca_slot_info *p_ca_slot_info;
469 struct ca_caps *p_ca_caps;
470 struct ca_msg *p_ca_message;
471
472 if ((p_ca_message = (struct ca_msg *) kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) {
a427de6f 473 dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure");
50b215a0
JS		 474 return -ENOMEM;
475 }
50b215a0 476 if ((p_ca_slot_info = (struct ca_slot_info *) kmalloc(sizeof (struct ca_slot_info), GFP_KERNEL)) == NULL) {
a427de6f 477 dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure");
50b215a0
JS		 478 return -ENOMEM;
479 }
50b215a0 480 if ((p_ca_caps = (struct ca_caps *) kmalloc(sizeof (struct ca_caps), GFP_KERNEL)) == NULL) {
a427de6f 481 dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure");
50b215a0
JS		 482 return -ENOMEM;
483 }
50b215a0
JS		 484 /* We have now only the standard ioctl's, the driver is upposed to handle internals. */
485 switch (cmd) {
a427de6f
MA		 486 case CA_SEND_MSG:
487 dprintk(verbose, DST_CA_INFO, 1, " Sending message");
488 if ((ca_send_message(state, p_ca_message, arg)) < 0) {
489 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SEND_MSG Failed !");
490 return -1;
491 }
492 break;
493 case CA_GET_MSG:
494 dprintk(verbose, DST_CA_INFO, 1, " Getting message");
495 if ((ca_get_message(state, p_ca_message, arg)) < 0) {
496 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_MSG Failed !");
497 return -1;
498 }
499 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_MSG Success !");
500 break;
501 case CA_RESET:
502 dprintk(verbose, DST_CA_ERROR, 1, " Resetting DST");
503 dst_error_bailout(state);
504 msleep(4000);
505 break;
506 case CA_GET_SLOT_INFO:
507 dprintk(verbose, DST_CA_INFO, 1, " Getting Slot info");
508 if ((ca_get_slot_info(state, p_ca_slot_info, arg)) < 0) {
509 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_SLOT_INFO Failed !");
510 return -1;
511 }
512 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_SLOT_INFO Success !");
513 break;
514 case CA_GET_CAP:
515 dprintk(verbose, DST_CA_INFO, 1, " Getting Slot capabilities");
516 if ((ca_get_slot_caps(state, p_ca_caps, arg)) < 0) {
517 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_CAP Failed !");
518 return -1;
519 }
520 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_CAP Success !");
521 break;
522 case CA_GET_DESCR_INFO:
523 dprintk(verbose, DST_CA_INFO, 1, " Getting descrambler description");
524 if ((ca_get_slot_descr(state, p_ca_message, arg)) < 0) {
525 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_DESCR_INFO Failed !");
526 return -1;
527 }
528 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_DESCR_INFO Success !");
529 break;
530 case CA_SET_DESCR:
531 dprintk(verbose, DST_CA_INFO, 1, " Setting descrambler");
532 if ((ca_set_slot_descr()) < 0) {
533 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SET_DESCR Failed !");
534 return -1;
535 }
536 dprintk(verbose, DST_CA_INFO, 1, " -->CA_SET_DESCR Success !");
537 break;
538 case CA_SET_PID:
539 dprintk(verbose, DST_CA_INFO, 1, " Setting PID");
540 if ((ca_set_pid()) < 0) {
541 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SET_PID Failed !");
542 return -1;
543 }
544 dprintk(verbose, DST_CA_INFO, 1, " -->CA_SET_PID Success !");
545 default:
546 return -EOPNOTSUPP;
547 };
50b215a0
JS		 548
549 return 0;
550}
551
552static int dst_ca_open(struct inode *inode, struct file *file)
553{
a427de6f 554 dprintk(verbose, DST_CA_DEBUG, 1, " Device opened [%p] ", file);
50b215a0
JS		 555 try_module_get(THIS_MODULE);
556
557 return 0;
558}
559
560static int dst_ca_release(struct inode *inode, struct file *file)
561{
a427de6f 562 dprintk(verbose, DST_CA_DEBUG, 1, " Device closed.");
50b215a0
JS		 563 module_put(THIS_MODULE);
564
565 return 0;
566}
567
a427de6f 568static int dst_ca_read(struct file *file, char __user *buffer, size_t length, loff_t *offset)
50b215a0
JS		 569{
570 int bytes_read = 0;
571
a427de6f 572 dprintk(verbose, DST_CA_DEBUG, 1, " Device read.");
50b215a0
JS		 573
574 return bytes_read;
575}
576
a427de6f 577static int dst_ca_write(struct file *file, const char __user *buffer, size_t length, loff_t *offset)
50b215a0 578{
a427de6f 579 dprintk(verbose, DST_CA_DEBUG, 1, " Device write.");
50b215a0
JS		 580
581 return 0;
582}
583
584static struct file_operations dst_ca_fops = {
585 .owner = THIS_MODULE,
586 .ioctl = (void *)dst_ca_ioctl,
587 .open = dst_ca_open,
588 .release = dst_ca_release,
589 .read = dst_ca_read,
590 .write = dst_ca_write
591};
592
593static struct dvb_device dvbdev_ca = {
594 .priv = NULL,
595 .users = 1,
596 .readers = 1,
597 .writers = 1,
598 .fops = &dst_ca_fops
599};
600
601int dst_ca_attach(struct dst_state *dst, struct dvb_adapter *dvb_adapter)
602{
603 struct dvb_device *dvbdev;
a427de6f 604 dprintk(verbose, DST_CA_ERROR, 1, "registering DST-CA device");
50b215a0
JS		 605 dvb_register_device(dvb_adapter, &dvbdev, &dvbdev_ca, dst, DVB_DEVICE_CA);
606 return 0;
607}
608
609EXPORT_SYMBOL(dst_ca_attach);
610
611MODULE_DESCRIPTION("DST DVB-S/T/C Combo CA driver");
612MODULE_AUTHOR("Manu Abraham");
613MODULE_LICENSE("GPL");
kernel source for telekom puls (alcatel/mediatek)