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[PATCH] dvb: Twinhan DST: frontend fixes
[mirror_ubuntu-artful-kernel.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
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
7d53421c 35static unsigned int verbose = 5;
50b215a0
JS		 36module_param(verbose, int, 0644);
37MODULE_PARM_DESC(verbose, "verbose startup messages, default is 1 (yes)");
38
39static unsigned int debug = 1;
40module_param(debug, int, 0644);
42dc6617 41MODULE_PARM_DESC(debug, "debug messages, default is 1 (yes)");
50b215a0 42
50b215a0
JS		 43#define dprintk if (debug) printk
44
4a2cc126 45/* Need some more work */
50b215a0
JS		 46static int ca_set_slot_descr(void)
47{
48 /* We could make this more graceful ? */
49 return -EOPNOTSUPP;
50}
51
4a2cc126 52/* Need some more work */
50b215a0
JS		 53static int ca_set_pid(void)
54{
55 /* We could make this more graceful ? */
56 return -EOPNOTSUPP;
57}
58
59
60static 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
89static 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
130static 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
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) {
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],
b98b79da 165 (state->messages[10] << 8) | state->messages[11], __FUNCTION__, (char *)(&state->messages[12]));
50b215a0
JS		 166 dprintk("%s: ==================================================================================================\n", __FUNCTION__);
167 }
168
169 return 0;
170}
171
172static 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
4a2cc126 209/* Need some more work */
50b215a0
JS		 210static int ca_get_slot_descr(struct dst_state *state, struct ca_msg *p_ca_message, void *arg)
211{
212 return -EOPNOTSUPP;
213}
214
215
216static 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
265static 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
7d53421c 298static int handle_dst_tag(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u32 length)
50b215a0 299{
4a2cc126 300 if (state->dst_hw_cap & DST_TYPE_HAS_SESSION) {
50b215a0
JS		 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 {
7d53421c
MA		 305 hw_buffer->msg[0] = (length & 0xff) + 7;
306 hw_buffer->msg[1] = 0x40;
50b215a0
JS		 307 hw_buffer->msg[2] = 0x03;
308 hw_buffer->msg[3] = 0x00;
7d53421c
MA		 309 hw_buffer->msg[4] = 0x03;
310 hw_buffer->msg[5] = length & 0xff;
311 hw_buffer->msg[6] = 0x00;
50b215a0
JS		 312 }
313 return 0;
314}
315
50b215a0 316
7d53421c 317static int write_to_8820(struct dst_state *state, struct ca_msg *hw_buffer, u8 length, u8 reply)
50b215a0 318{
7d53421c 319 if ((dst_put_ci(state, hw_buffer->msg, length, hw_buffer->msg, reply)) < 0) {
50b215a0
JS		 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
7d53421c 331u32 asn_1_decode(u8 *asn_1_array)
50b215a0 332{
7d53421c
MA		 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);
50b215a0
JS		 346 }
347 }
7d53421c
MA		 348 return length;
349}
50b215a0 350
7d53421c
MA		 351static int init_buffer(u8 *buffer, u32 length)
352{
353 u32 i;
354 for (i = 0; i < length; i++)
355 buffer[i] = 0;
50b215a0 356
7d53421c
MA		 357 return 0;
358}
50b215a0 359
7d53421c
MA		 360static int debug_string(u8 *msg, u32 length, u32 offset)
361{
362 u32 i;
50b215a0 363
7d53421c
MA		 364 dprintk(" String=[ ");
365 for (i = offset; i < length; i++)
366 dprintk("%02x ", msg[i]);
367 dprintk("]\n");
50b215a0 368
7d53421c
MA		 369 return 0;
370}
50b215a0 371
7d53421c
MA		 372static 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");
50b215a0 381
7d53421c
MA		 382 return i;
383}
50b215a0 384
7d53421c
MA		 385static int modify_4_bits(u8 *message, u32 pos)
386{
387 message[pos] &= 0x0f;
50b215a0 388
7d53421c
MA		 389 return 0;
390}
50b215a0 391
50b215a0 392
50b215a0 393
7d53421c
MA		 394static 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;
50b215a0 401
7d53421c
MA		 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
50b215a0 406
7d53421c
MA		 407 init_buffer(hw_buffer->msg, length);
408 handle_dst_tag(state, p_ca_message, hw_buffer, length);
50b215a0 409
7d53421c
MA		 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__);
50b215a0 454 }
50b215a0 455
50b215a0 456 }
7d53421c
MA		 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
50b215a0
JS		 461
462 return 0;
463}
464
7d53421c 465
50b215a0
JS		 466/* Board supports CA PMT reply ? */
467static 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
500static 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) {
7d53421c 509 dprintk("%s: Memory allocation failure\n", __FUNCTION__);
50b215a0
JS		 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)
7d53421c 534// dprintk("Command = SEND_CA_PMT\n");
50b215a0 535 dprintk("Command = SEND_CA_PMT\n");
7d53421c
MA		 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
50b215a0
JS		 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)
7d53421c 570 dprintk("%s: -->CA_APP_INFO_ENQUIRY Success !\n", __FUNCTION__);
50b215a0
JS		 571
572 break;
573 }
574 }
575 return 0;
576}
577
578static 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) {
7d53421c 587 dprintk("%s: Memory allocation failure\n", __FUNCTION__);
50b215a0
JS		 588 return -ENOMEM;
589 }
590
591 if ((p_ca_slot_info = (struct ca_slot_info *) kmalloc(sizeof (struct ca_slot_info), GFP_KERNEL)) == NULL) {
7d53421c 592 dprintk("%s: Memory allocation failure\n", __FUNCTION__);
50b215a0
JS		 593 return -ENOMEM;
594 }
595
596 if ((p_ca_caps = (struct ca_caps *) kmalloc(sizeof (struct ca_caps), GFP_KERNEL)) == NULL) {
7d53421c 597 dprintk("%s: Memory allocation failure\n", __FUNCTION__);
50b215a0
JS		 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
698static 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
707static 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
716static 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
726static 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
734static 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
743static struct dvb_device dvbdev_ca = {
744 .priv = NULL,
745 .users = 1,
746 .readers = 1,
747 .writers = 1,
748 .fops = &dst_ca_fops
749};
750
751int 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
760EXPORT_SYMBOL(dst_ca_attach);
761
762MODULE_DESCRIPTION("DST DVB-S/T/C Combo CA driver");
763MODULE_AUTHOR("Manu Abraham");
764MODULE_LICENSE("GPL");
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