Automatic merge of /spare/repo/netdev-2.6 branch we18
[linux-2.6] / drivers / media / dvb / bt8xx / dst_ca.c
1 /*
2         CA-driver for TwinHan DST Frontend/Card
3
4         Copyright (C) 2004, 2005 Manu Abraham (manu@kromtek.com)
5
6         This program is free software; you can redistribute it and/or modify
7         it under the terms of the GNU General Public License as published by
8         the Free Software Foundation; either version 2 of the License, or
9         (at your option) any later version.
10
11         This program is distributed in the hope that it will be useful,
12         but WITHOUT ANY WARRANTY; without even the implied warranty of
13         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14         GNU General Public License for more details.
15
16         You should have received a copy of the GNU General Public License
17         along with this program; if not, write to the Free Software
18         Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20
21
22
23 #include <linux/kernel.h>
24 #include <linux/module.h>
25 #include <linux/init.h>
26 #include <linux/string.h>
27
28 #include <linux/dvb/ca.h>
29 #include "dvbdev.h"
30 #include "dvb_frontend.h"
31
32 #include "dst_ca.h"
33 #include "dst_common.h"
34
35 static unsigned int verbose = 1;
36 module_param(verbose, int, 0644);
37 MODULE_PARM_DESC(verbose, "verbose startup messages, default is 1 (yes)");
38
39 static unsigned int debug = 1;
40 module_param(debug, int, 0644);
41 MODULE_PARM_DESC(debug, "debug messages, default is 1 (yes)");
42
43 #define dprintk if (debug) printk
44
45 /*      Need some more work     */
46 static int ca_set_slot_descr(void)
47 {
48         /*      We could make this more graceful ?      */
49         return -EOPNOTSUPP;
50 }
51
52 /*      Need some more work     */
53 static int ca_set_pid(void)
54 {
55         /*      We could make this more graceful ?      */
56         return -EOPNOTSUPP;
57 }
58
59
60 static int put_checksum(u8 *check_string, int length)
61 {
62         u8 i = 0, checksum = 0;
63
64         if (verbose > 3) {
65                 dprintk("%s: ========================= Checksum calculation ===========================\n", __FUNCTION__);
66                 dprintk("%s: String Length=[0x%02x]\n", __FUNCTION__, length);
67
68                 dprintk("%s: String=[", __FUNCTION__);
69         }
70         while (i < length) {
71                 if (verbose > 3)
72                         dprintk(" %02x", check_string[i]);
73                 checksum += check_string[i];
74                 i++;
75         }
76         if (verbose > 3) {
77                 dprintk(" ]\n");
78                 dprintk("%s: Sum=[%02x]\n", __FUNCTION__, checksum);
79         }
80         check_string[length] = ~checksum + 1;
81         if (verbose > 3) {
82                 dprintk("%s: Checksum=[%02x]\n", __FUNCTION__, check_string[length]);
83                 dprintk("%s: ==========================================================================\n", __FUNCTION__);
84         }
85
86         return 0;
87 }
88
89 static int dst_ci_command(struct dst_state* state, u8 * data, u8 *ca_string, u8 len, int read)
90 {
91         u8 reply;
92
93         dst_comm_init(state);
94         msleep(65);
95
96         if (write_dst(state, data, len)) {
97                 dprintk("%s: Write not successful, trying to recover\n", __FUNCTION__);
98                 dst_error_recovery(state);
99                 return -1;
100         }
101
102         if ((dst_pio_disable(state)) < 0) {
103                 dprintk("%s: DST PIO disable failed.\n", __FUNCTION__);
104                 return -1;
105         }
106
107         if (read_dst(state, &reply, GET_ACK) < 0) {
108                 dprintk("%s: Read not successful, trying to recover\n", __FUNCTION__);
109                 dst_error_recovery(state);
110                 return -1;
111         }
112
113         if (read) {
114                 if (! dst_wait_dst_ready(state, LONG_DELAY)) {
115                         dprintk("%s: 8820 not ready\n", __FUNCTION__);
116                         return -1;
117                 }
118
119                 if (read_dst(state, ca_string, 128) < 0) {      /*      Try to make this dynamic        */
120                         dprintk("%s: Read not successful, trying to recover\n", __FUNCTION__);
121                         dst_error_recovery(state);
122                         return -1;
123                 }
124         }
125
126         return 0;
127 }
128
129
130 static int dst_put_ci(struct dst_state *state, u8 *data, int len, u8 *ca_string, int read)
131 {
132         u8 dst_ca_comm_err = 0;
133
134         while (dst_ca_comm_err < RETRIES) {
135                 dst_comm_init(state);
136                 if (verbose > 2)
137                         dprintk("%s: Put Command\n", __FUNCTION__);
138                 if (dst_ci_command(state, data, ca_string, len, read)) {        // If error
139                         dst_error_recovery(state);
140                         dst_ca_comm_err++; // work required here.
141                 }
142                 break;
143         }
144
145         return 0;
146 }
147
148
149
150 static int ca_get_app_info(struct dst_state *state)
151 {
152         static u8 command[8] = {0x07, 0x40, 0x01, 0x00, 0x01, 0x00, 0x00, 0xff};
153
154         put_checksum(&command[0], command[0]);
155         if ((dst_put_ci(state, command, sizeof(command), state->messages, GET_REPLY)) < 0) {
156                 dprintk("%s: -->dst_put_ci FAILED !\n", __FUNCTION__);
157                 return -1;
158         }
159         if (verbose > 1) {
160                 dprintk("%s: -->dst_put_ci SUCCESS !\n", __FUNCTION__);
161
162                 dprintk("%s: ================================ CI Module Application Info ======================================\n", __FUNCTION__);
163                 dprintk("%s: Application Type=[%d], Application Vendor=[%d], Vendor Code=[%d]\n%s: Application info=[%s]\n",
164                         __FUNCTION__, state->messages[7], (state->messages[8] << 8) | state->messages[9],
165                         (state->messages[10] << 8) | state->messages[11], __FUNCTION__, (char *)(&state->messages[12]));
166                 dprintk("%s: ==================================================================================================\n", __FUNCTION__);
167         }
168
169         return 0;
170 }
171
172 static int ca_get_slot_caps(struct dst_state *state, struct ca_caps *p_ca_caps, void *arg)
173 {
174         int i;
175         u8 slot_cap[256];
176         static u8 slot_command[8] = {0x07, 0x40, 0x02, 0x00, 0x02, 0x00, 0x00, 0xff};
177
178         put_checksum(&slot_command[0], slot_command[0]);
179         if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_cap, GET_REPLY)) < 0) {
180                 dprintk("%s: -->dst_put_ci FAILED !\n", __FUNCTION__);
181                 return -1;
182         }
183         if (verbose > 1)
184                 dprintk("%s: -->dst_put_ci SUCCESS !\n", __FUNCTION__);
185
186         /*      Will implement the rest soon            */
187
188         if (verbose > 1) {
189                 dprintk("%s: Slot cap = [%d]\n", __FUNCTION__, slot_cap[7]);
190                 dprintk("===================================\n");
191                 for (i = 0; i < 8; i++)
192                         dprintk(" %d", slot_cap[i]);
193                 dprintk("\n");
194         }
195
196         p_ca_caps->slot_num = 1;
197         p_ca_caps->slot_type = 1;
198         p_ca_caps->descr_num = slot_cap[7];
199         p_ca_caps->descr_type = 1;
200
201
202         if (copy_to_user((struct ca_caps *)arg, p_ca_caps, sizeof (struct ca_caps))) {
203                 return -EFAULT;
204         }
205
206         return 0;
207 }
208
209 /*      Need some more work     */
210 static int ca_get_slot_descr(struct dst_state *state, struct ca_msg *p_ca_message, void *arg)
211 {
212         return -EOPNOTSUPP;
213 }
214
215
216 static int ca_get_slot_info(struct dst_state *state, struct ca_slot_info *p_ca_slot_info, void *arg)
217 {
218         int i;
219         static u8 slot_command[8] = {0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff};
220
221         u8 *slot_info = state->rxbuffer;
222
223         put_checksum(&slot_command[0], 7);
224         if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_info, GET_REPLY)) < 0) {
225                 dprintk("%s: -->dst_put_ci FAILED !\n", __FUNCTION__);
226                 return -1;
227         }
228         if (verbose > 1)
229                 dprintk("%s: -->dst_put_ci SUCCESS !\n", __FUNCTION__);
230
231         /*      Will implement the rest soon            */
232
233         if (verbose > 1) {
234                 dprintk("%s: Slot info = [%d]\n", __FUNCTION__, slot_info[3]);
235                 dprintk("===================================\n");
236                 for (i = 0; i < 8; i++)
237                         dprintk(" %d", slot_info[i]);
238                 dprintk("\n");
239         }
240
241         if (slot_info[4] & 0x80) {
242                 p_ca_slot_info->flags = CA_CI_MODULE_PRESENT;
243                 p_ca_slot_info->num = 1;
244                 p_ca_slot_info->type = CA_CI;
245         }
246         else if (slot_info[4] & 0x40) {
247                 p_ca_slot_info->flags = CA_CI_MODULE_READY;
248                 p_ca_slot_info->num = 1;
249                 p_ca_slot_info->type = CA_CI;
250         }
251         else {
252                 p_ca_slot_info->flags = 0;
253         }
254
255         if (copy_to_user((struct ca_slot_info *)arg, p_ca_slot_info, sizeof (struct ca_slot_info))) {
256                 return -EFAULT;
257         }
258
259         return 0;
260 }
261
262
263
264
265 static int ca_get_message(struct dst_state *state, struct ca_msg *p_ca_message, void *arg)
266 {
267         u8 i = 0;
268         u32 command = 0;
269
270         if (copy_from_user(p_ca_message, (void *)arg, sizeof (struct ca_msg)))
271                 return -EFAULT;
272
273
274         if (p_ca_message->msg) {
275                 if (verbose > 3)
276                         dprintk("Message = [%02x %02x %02x]\n", p_ca_message->msg[0], p_ca_message->msg[1], p_ca_message->msg[2]);
277
278                 for (i = 0; i < 3; i++) {
279                         command = command | p_ca_message->msg[i];
280                         if (i < 2)
281                                 command = command << 8;
282                 }
283                 if (verbose > 3)
284                         dprintk("%s:Command=[0x%x]\n", __FUNCTION__, command);
285
286                 switch (command) {
287                         case CA_APP_INFO:
288                                 memcpy(p_ca_message->msg, state->messages, 128);
289                                 if (copy_to_user((void *)arg, p_ca_message, sizeof (struct ca_msg)) )
290                                         return -EFAULT;
291                         break;
292                 }
293         }
294
295         return 0;
296 }
297
298 static int handle_en50221_tag(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer)
299 {
300         if (state->dst_hw_cap & DST_TYPE_HAS_SESSION) {
301                 hw_buffer->msg[2] = p_ca_message->msg[1];               /*              MSB                     */
302                 hw_buffer->msg[3] = p_ca_message->msg[2];               /*              LSB                     */
303         }
304         else {
305                 hw_buffer->msg[2] = 0x03;
306                 hw_buffer->msg[3] = 0x00;
307         }
308         return 0;
309 }
310
311 static int debug_8820_buffer(struct ca_msg *hw_buffer)
312 {
313         unsigned int i;
314
315         dprintk("%s:Debug=[", __FUNCTION__);
316         for (i = 0; i < (hw_buffer->msg[0] + 1); i++)
317                 dprintk(" %02x", hw_buffer->msg[i]);
318         dprintk("]\n");
319
320         return 0;
321 }
322
323 static int write_to_8820(struct dst_state *state, struct ca_msg *hw_buffer, u8 reply)
324 {
325         if ((dst_put_ci(state, hw_buffer->msg, (hw_buffer->length + 1), hw_buffer->msg, reply)) < 0) {
326                 dprintk("%s: DST-CI Command failed.\n", __FUNCTION__);
327                 dprintk("%s: Resetting DST.\n", __FUNCTION__);
328                 rdc_reset_state(state);
329                 return -1;
330         }
331         if (verbose > 2)
332                 dprintk("%s: DST-CI Command succes.\n", __FUNCTION__);
333
334         return 0;
335 }
336
337
338 static int ca_set_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u8 reply, u8 query)
339 {
340         u32 hw_offset, buf_offset, i, k;
341         u32 program_info_length = 0, es_info_length = 0, length = 0, words = 0;
342         u8 found_prog_ca_desc = 0, found_stream_ca_desc = 0, error_condition = 0, hw_buffer_length = 0;
343
344         if (verbose > 3)
345                 dprintk("%s, p_ca_message length %d (0x%x)\n", __FUNCTION__,p_ca_message->length,p_ca_message->length );
346
347         handle_en50221_tag(state, p_ca_message, hw_buffer);                     /*      EN50221 tag             */
348
349         /*      Handle the length field (variable)      */
350         if (!(p_ca_message->msg[3] & 0x80)) {                           /*      Length = 1              */
351                 length = p_ca_message->msg[3] & 0x7f;
352                 words = 0;                                              /*      domi's suggestion       */
353         }
354         else {                                                          /*      Length = words          */
355                 words = p_ca_message->msg[3] & 0x7f;
356                 for (i = 0; i < words; i++) {
357                         length = length << 8;
358                         length = length | p_ca_message->msg[4 + i];
359                 }
360         }
361         if (verbose > 4) {
362                 dprintk("%s:Length=[%d (0x%x)], Words=[%d]\n", __FUNCTION__, length,length, words);
363
364                 /*      Debug Input string              */
365                 for (i = 0; i < length; i++)
366                         dprintk(" %02x", p_ca_message->msg[i]);
367                 dprintk("]\n");
368         }
369
370         hw_offset = 7;
371         buf_offset = words + 4;
372
373         /*              Program Header                  */
374         if (verbose > 4)
375                 dprintk("\n%s:Program Header=[", __FUNCTION__);
376         for (i = 0; i < 6; i++) {
377                 hw_buffer->msg[hw_offset] = p_ca_message->msg[buf_offset];
378                 if (verbose > 4)
379                         dprintk(" %02x", p_ca_message->msg[buf_offset]);
380                 hw_offset++, buf_offset++, hw_buffer_length++;
381         }
382         if (verbose > 4)
383                 dprintk("]\n");
384
385         program_info_length = 0;
386         program_info_length = (((program_info_length | p_ca_message->msg[words + 8]) & 0x0f) << 8) | p_ca_message->msg[words + 9];
387         if (verbose > 4)
388                 dprintk("%s:Program info Length=[%d][%02x], hw_offset=[%d], buf_offset=[%d] \n",
389                         __FUNCTION__, program_info_length, program_info_length, hw_offset, buf_offset);
390
391         if (program_info_length && (program_info_length < 256)) {       /*      If program_info_length          */
392                 hw_buffer->msg[11] = hw_buffer->msg[11] & 0x0f;         /*      req only 4 bits                 */
393                 hw_buffer->msg[12] = hw_buffer->msg[12] + 1;            /*      increment! ASIC bug!            */
394
395                 if (p_ca_message->msg[buf_offset + 1] == 0x09) {        /*      Check CA descriptor             */
396                         found_prog_ca_desc = 1;
397                         if (verbose > 4)
398                                 dprintk("%s: Found CA descriptor @ Program level\n", __FUNCTION__);
399                 }
400
401                 if (found_prog_ca_desc) {                               /*      Command only if CA descriptor   */
402                         hw_buffer->msg[13] = p_ca_message->msg[buf_offset];     /*      CA PMT command ID       */
403                         hw_offset++, buf_offset++, hw_buffer_length++;
404                 }
405
406                 /*                      Program descriptors                             */
407                 if (verbose > 4) {
408                         dprintk("%s:**********>buf_offset=[%d], hw_offset=[%d]\n", __FUNCTION__, buf_offset, hw_offset);
409                         dprintk("%s:Program descriptors=[", __FUNCTION__);
410                 }
411                 while (program_info_length && !error_condition) {               /*      Copy prog descriptors   */
412                         if (program_info_length > p_ca_message->length) {       /*      Error situation         */
413                                 dprintk ("%s:\"WARNING\" Length error, line=[%d], prog_info_length=[%d]\n",
414                                                                 __FUNCTION__, __LINE__, program_info_length);
415                                 dprintk("%s:\"WARNING\" Bailing out of possible loop\n", __FUNCTION__);
416                                 error_condition = 1;
417                                 break;
418                         }
419
420                         hw_buffer->msg[hw_offset] = p_ca_message->msg[buf_offset];
421                         dprintk(" %02x", p_ca_message->msg[buf_offset]);
422                         hw_offset++, buf_offset++, hw_buffer_length++, program_info_length--;
423                 }
424                 if (verbose > 4) {
425                         dprintk("]\n");
426                         dprintk("%s:**********>buf_offset=[%d], hw_offset=[%d]\n", __FUNCTION__, buf_offset, hw_offset);
427                 }
428                 if (found_prog_ca_desc) {
429                         if (!reply) {
430                                 hw_buffer->msg[13] = 0x01;              /*      OK descrambling                 */
431                                 if (verbose > 1)
432                                         dprintk("CA PMT Command = OK Descrambling\n");
433                         }
434                         else {
435                                 hw_buffer->msg[13] = 0x02;              /*      Ok MMI                          */
436                                 if (verbose > 1)
437                                         dprintk("CA PMT Command = Ok MMI\n");
438                         }
439                         if (query) {
440                                 hw_buffer->msg[13] = 0x03;              /*      Query                           */
441                                 if (verbose > 1)
442                                         dprintk("CA PMT Command = CA PMT query\n");
443                         }
444                 }
445         }
446         else {
447                 hw_buffer->msg[11] = hw_buffer->msg[11] & 0xf0;         /*      Don't write to ASIC             */
448                 hw_buffer->msg[12] = hw_buffer->msg[12] = 0x00;
449         }
450         if (verbose > 4)
451                 dprintk("%s:**********>p_ca_message->length=[%d], buf_offset=[%d], hw_offset=[%d]\n",
452                                         __FUNCTION__, p_ca_message->length, buf_offset, hw_offset);
453
454         while ((buf_offset  < p_ca_message->length)  && !error_condition) {
455                 /*      Bail out in case of an indefinite loop          */
456                 if ((es_info_length > p_ca_message->length) || (buf_offset > p_ca_message->length)) {
457                         dprintk("%s:\"WARNING\" Length error, line=[%d], prog_info_length=[%d], buf_offset=[%d]\n",
458                                                         __FUNCTION__, __LINE__, program_info_length, buf_offset);
459
460                         dprintk("%s:\"WARNING\" Bailing out of possible loop\n", __FUNCTION__);
461                         error_condition = 1;
462                         break;
463                 }
464
465                 /*              Stream Header                           */
466
467                 for (k = 0; k < 5; k++) {
468                         hw_buffer->msg[hw_offset + k] = p_ca_message->msg[buf_offset + k];
469                 }
470
471                 es_info_length = 0;
472                 es_info_length = (es_info_length | (p_ca_message->msg[buf_offset + 3] & 0x0f)) << 8 | p_ca_message->msg[buf_offset + 4];
473
474                 if (verbose > 4) {
475                         dprintk("\n%s:----->Stream header=[%02x %02x %02x %02x %02x]\n", __FUNCTION__,
476                                 p_ca_message->msg[buf_offset + 0], p_ca_message->msg[buf_offset + 1],
477                                 p_ca_message->msg[buf_offset + 2], p_ca_message->msg[buf_offset + 3],
478                                 p_ca_message->msg[buf_offset + 4]);
479
480                         dprintk("%s:----->Stream type=[%02x], es length=[%d (0x%x)], Chars=[%02x] [%02x], buf_offset=[%d]\n", __FUNCTION__,
481                                 p_ca_message->msg[buf_offset + 0], es_info_length, es_info_length,
482                                 p_ca_message->msg[buf_offset + 3], p_ca_message->msg[buf_offset + 4], buf_offset);
483                 }
484
485                 hw_buffer->msg[hw_offset + 3] &= 0x0f;                  /*      req only 4 bits                 */
486
487                 if (found_prog_ca_desc) {
488                         hw_buffer->msg[hw_offset + 3] = 0x00;
489                         hw_buffer->msg[hw_offset + 4] = 0x00;
490                 }
491
492                 hw_offset += 5, buf_offset += 5, hw_buffer_length += 5;
493
494                 /*              Check for CA descriptor                 */
495                 if (p_ca_message->msg[buf_offset + 1] == 0x09) {
496                         if (verbose > 4)
497                                 dprintk("%s:Found CA descriptor @ Stream level\n", __FUNCTION__);
498                         found_stream_ca_desc = 1;
499                 }
500
501                 /*              ES descriptors                          */
502
503                 if (es_info_length && !error_condition && !found_prog_ca_desc && found_stream_ca_desc) {
504 //                      if (!ca_pmt_done) {
505                                 hw_buffer->msg[hw_offset] = p_ca_message->msg[buf_offset];      /*      CA PMT cmd(es)  */
506                                 if (verbose > 4)
507                                         printk("%s:----->CA PMT Command ID=[%02x]\n", __FUNCTION__, p_ca_message->msg[buf_offset]);
508 //                              hw_offset++, buf_offset++, hw_buffer_length++, es_info_length--, ca_pmt_done = 1;
509                                 hw_offset++, buf_offset++, hw_buffer_length++, es_info_length--;
510 //                      }
511                         if (verbose > 4)
512                                 dprintk("%s:----->ES descriptors=[", __FUNCTION__);
513
514                         while (es_info_length && !error_condition) {    /*      ES descriptors                  */
515                                 if ((es_info_length > p_ca_message->length) || (buf_offset > p_ca_message->length)) {
516                                         if (verbose > 4) {
517                                                 dprintk("%s:\"WARNING\" ES Length error, line=[%d], es_info_length=[%d], buf_offset=[%d]\n",
518                                                                                 __FUNCTION__, __LINE__, es_info_length, buf_offset);
519
520                                                 dprintk("%s:\"WARNING\" Bailing out of possible loop\n", __FUNCTION__);
521                                         }
522                                         error_condition = 1;
523                                         break;
524                                 }
525
526                                 hw_buffer->msg[hw_offset] = p_ca_message->msg[buf_offset];
527                                 if (verbose > 3)
528                                         dprintk("%02x ", hw_buffer->msg[hw_offset]);
529                                 hw_offset++, buf_offset++, hw_buffer_length++, es_info_length--;
530                         }
531                         found_stream_ca_desc = 0;                       /*      unset for new streams           */
532                         dprintk("]\n");
533                 }
534         }
535
536         /*              MCU Magic words                                 */
537
538         hw_buffer_length += 7;
539         hw_buffer->msg[0] = hw_buffer_length;
540         hw_buffer->msg[1] = 64;
541         hw_buffer->msg[4] = 3;
542         hw_buffer->msg[5] = hw_buffer->msg[0] - 7;
543         hw_buffer->msg[6] = 0;
544
545
546         /*      Fix length      */
547         hw_buffer->length = hw_buffer->msg[0];
548
549         put_checksum(&hw_buffer->msg[0], hw_buffer->msg[0]);
550         /*      Do the actual write     */
551         if (verbose > 4) {
552                 dprintk("%s:======================DEBUGGING================================\n", __FUNCTION__);
553                 dprintk("%s: Actual Length=[%d]\n", __FUNCTION__, hw_buffer_length);
554         }
555         /*      Only for debugging!     */
556         if (verbose > 2)
557                 debug_8820_buffer(hw_buffer);
558         if (verbose > 3)
559                 dprintk("%s: Reply = [%d]\n", __FUNCTION__, reply);
560         write_to_8820(state, hw_buffer, reply);
561
562         return 0;
563 }
564
565 /*      Board supports CA PMT reply ?           */
566 static int dst_check_ca_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer)
567 {
568         int ca_pmt_reply_test = 0;
569
570         /*      Do test board                   */
571         /*      Not there yet but soon          */
572
573
574         /*      CA PMT Reply capable            */
575         if (ca_pmt_reply_test) {
576                 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 1, GET_REPLY)) < 0) {
577                         dprintk("%s: ca_set_pmt.. failed !\n", __FUNCTION__);
578                         return -1;
579                 }
580
581         /*      Process CA PMT Reply            */
582         /*      will implement soon             */
583                 dprintk("%s: Not there yet\n", __FUNCTION__);
584         }
585         /*      CA PMT Reply not capable        */
586         if (!ca_pmt_reply_test) {
587                 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, NO_REPLY)) < 0) {
588                         dprintk("%s: ca_set_pmt.. failed !\n", __FUNCTION__);
589                         return -1;
590                 }
591                 if (verbose > 3)
592                         dprintk("%s: ca_set_pmt.. success !\n", __FUNCTION__);
593         /*      put a dummy message             */
594
595         }
596         return 0;
597 }
598
599 static int ca_send_message(struct dst_state *state, struct ca_msg *p_ca_message, void *arg)
600 {
601         int i = 0;
602         unsigned int ca_message_header_len;
603
604         u32 command = 0;
605         struct ca_msg *hw_buffer;
606
607         if ((hw_buffer = (struct ca_msg *) kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) {
608                 printk("%s: Memory allocation failure\n", __FUNCTION__);
609                 return -ENOMEM;
610         }
611         if (verbose > 3)
612                 dprintk("%s\n", __FUNCTION__);
613
614         if (copy_from_user(p_ca_message, (void *)arg, sizeof (struct ca_msg)))
615                 return -EFAULT;
616
617         if (p_ca_message->msg) {
618                 ca_message_header_len = p_ca_message->length;   /*      Restore it back when you are done       */
619                 /*      EN50221 tag     */
620                 command = 0;
621
622                 for (i = 0; i < 3; i++) {
623                         command = command | p_ca_message->msg[i];
624                         if (i < 2)
625                                 command = command << 8;
626                 }
627                 if (verbose > 3)
628                         dprintk("%s:Command=[0x%x]\n", __FUNCTION__, command);
629
630                 switch (command) {
631                         case CA_PMT:
632                                 if (verbose > 3)
633                                         dprintk("Command = SEND_CA_PMT\n");
634                                 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, 0)) < 0) {
635                                         dprintk("%s: -->CA_PMT Failed !\n", __FUNCTION__);
636                                         return -1;
637                                 }
638                                 if (verbose > 3)
639                                         dprintk("%s: -->CA_PMT Success !\n", __FUNCTION__);
640 //                              retval = dummy_set_pmt(state, p_ca_message, hw_buffer, 0, 0);
641
642                                 break;
643
644                         case CA_PMT_REPLY:
645                                 if (verbose > 3)
646                                         dprintk("Command = CA_PMT_REPLY\n");
647                                 /*      Have to handle the 2 basic types of cards here  */
648                                 if ((dst_check_ca_pmt(state, p_ca_message, hw_buffer)) < 0) {
649                                         dprintk("%s: -->CA_PMT_REPLY Failed !\n", __FUNCTION__);
650                                         return -1;
651                                 }
652                                 if (verbose > 3)
653                                         dprintk("%s: -->CA_PMT_REPLY Success !\n", __FUNCTION__);
654
655                                 /*      Certain boards do behave different ?            */
656 //                              retval = ca_set_pmt(state, p_ca_message, hw_buffer, 1, 1);
657
658                         case CA_APP_INFO_ENQUIRY:               // only for debugging
659                                 if (verbose > 3)
660                                         dprintk("%s: Getting Cam Application information\n", __FUNCTION__);
661
662                                 if ((ca_get_app_info(state)) < 0) {
663                                         dprintk("%s: -->CA_APP_INFO_ENQUIRY Failed !\n", __FUNCTION__);
664                                         return -1;
665                                 }
666                                 if (verbose > 3)
667                                         printk("%s: -->CA_APP_INFO_ENQUIRY Success !\n", __FUNCTION__);
668
669                                 break;
670                 }
671         }
672         return 0;
673 }
674
675 static int dst_ca_ioctl(struct inode *inode, struct file *file, unsigned int cmd, void *arg)
676 {
677         struct dvb_device* dvbdev = (struct dvb_device*) file->private_data;
678         struct dst_state* state = (struct dst_state*) dvbdev->priv;
679         struct ca_slot_info *p_ca_slot_info;
680         struct ca_caps *p_ca_caps;
681         struct ca_msg *p_ca_message;
682
683         if ((p_ca_message = (struct ca_msg *) kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) {
684                 printk("%s: Memory allocation failure\n", __FUNCTION__);
685                 return -ENOMEM;
686         }
687
688         if ((p_ca_slot_info = (struct ca_slot_info *) kmalloc(sizeof (struct ca_slot_info), GFP_KERNEL)) == NULL) {
689                 printk("%s: Memory allocation failure\n", __FUNCTION__);
690                 return -ENOMEM;
691         }
692
693         if ((p_ca_caps = (struct ca_caps *) kmalloc(sizeof (struct ca_caps), GFP_KERNEL)) == NULL) {
694                 printk("%s: Memory allocation failure\n", __FUNCTION__);
695                 return -ENOMEM;
696         }
697
698         /*      We have now only the standard ioctl's, the driver is upposed to handle internals.       */
699         switch (cmd) {
700                 case CA_SEND_MSG:
701                         if (verbose > 1)
702                                 dprintk("%s: Sending message\n", __FUNCTION__);
703                         if ((ca_send_message(state, p_ca_message, arg)) < 0) {
704                                 dprintk("%s: -->CA_SEND_MSG Failed !\n", __FUNCTION__);
705                                 return -1;
706                         }
707
708                         break;
709
710                 case CA_GET_MSG:
711                         if (verbose > 1)
712                                 dprintk("%s: Getting message\n", __FUNCTION__);
713                         if ((ca_get_message(state, p_ca_message, arg)) < 0) {
714                                 dprintk("%s: -->CA_GET_MSG Failed !\n", __FUNCTION__);
715                                 return -1;
716                         }
717                         if (verbose > 1)
718                                 dprintk("%s: -->CA_GET_MSG Success !\n", __FUNCTION__);
719
720                         break;
721
722                 case CA_RESET:
723                         if (verbose > 1)
724                                 dprintk("%s: Resetting DST\n", __FUNCTION__);
725                         dst_error_bailout(state);
726                         msleep(4000);
727
728                         break;
729
730                 case CA_GET_SLOT_INFO:
731                         if (verbose > 1)
732                                 dprintk("%s: Getting Slot info\n", __FUNCTION__);
733                         if ((ca_get_slot_info(state, p_ca_slot_info, arg)) < 0) {
734                                 dprintk("%s: -->CA_GET_SLOT_INFO Failed !\n", __FUNCTION__);
735                                 return -1;
736                         }
737                         if (verbose > 1)
738                                 dprintk("%s: -->CA_GET_SLOT_INFO Success !\n", __FUNCTION__);
739
740                         break;
741
742                 case CA_GET_CAP:
743                         if (verbose > 1)
744                                 dprintk("%s: Getting Slot capabilities\n", __FUNCTION__);
745                         if ((ca_get_slot_caps(state, p_ca_caps, arg)) < 0) {
746                                 dprintk("%s: -->CA_GET_CAP Failed !\n", __FUNCTION__);
747                                 return -1;
748                         }
749                         if (verbose > 1)
750                                 dprintk("%s: -->CA_GET_CAP Success !\n", __FUNCTION__);
751
752                         break;
753
754                 case CA_GET_DESCR_INFO:
755                         if (verbose > 1)
756                                 dprintk("%s: Getting descrambler description\n", __FUNCTION__);
757                         if ((ca_get_slot_descr(state, p_ca_message, arg)) < 0) {
758                                 dprintk("%s: -->CA_GET_DESCR_INFO Failed !\n", __FUNCTION__);
759                                 return -1;
760                         }
761                         if (verbose > 1)
762                                 dprintk("%s: -->CA_GET_DESCR_INFO Success !\n", __FUNCTION__);
763
764                         break;
765
766                 case CA_SET_DESCR:
767                         if (verbose > 1)
768                                 dprintk("%s: Setting descrambler\n", __FUNCTION__);
769                         if ((ca_set_slot_descr()) < 0) {
770                                 dprintk("%s: -->CA_SET_DESCR Failed !\n", __FUNCTION__);
771                                 return -1;
772                         }
773                         if (verbose > 1)
774                                 dprintk("%s: -->CA_SET_DESCR Success !\n", __FUNCTION__);
775
776                         break;
777
778                 case CA_SET_PID:
779                         if (verbose > 1)
780                                 dprintk("%s: Setting PID\n", __FUNCTION__);
781                         if ((ca_set_pid()) < 0) {
782                                 dprintk("%s: -->CA_SET_PID Failed !\n", __FUNCTION__);
783                                 return -1;
784                         }
785                         if (verbose > 1)
786                                 dprintk("%s: -->CA_SET_PID Success !\n", __FUNCTION__);
787
788                 default:
789                         return -EOPNOTSUPP;
790                 };
791
792         return 0;
793 }
794
795 static int dst_ca_open(struct inode *inode, struct file *file)
796 {
797         if (verbose > 4)
798                 dprintk("%s:Device opened [%p]\n", __FUNCTION__, file);
799         try_module_get(THIS_MODULE);
800
801         return 0;
802 }
803
804 static int dst_ca_release(struct inode *inode, struct file *file)
805 {
806         if (verbose > 4)
807                 dprintk("%s:Device closed.\n", __FUNCTION__);
808         module_put(THIS_MODULE);
809
810         return 0;
811 }
812
813 static int dst_ca_read(struct file *file, char __user * buffer, size_t length, loff_t * offset)
814 {
815         int bytes_read = 0;
816
817         if (verbose > 4)
818                 dprintk("%s:Device read.\n", __FUNCTION__);
819
820         return bytes_read;
821 }
822
823 static int dst_ca_write(struct file *file, const char __user * buffer, size_t length, loff_t * offset)
824 {
825         if (verbose > 4)
826                 dprintk("%s:Device write.\n", __FUNCTION__);
827
828         return 0;
829 }
830
831 static struct file_operations dst_ca_fops = {
832         .owner = THIS_MODULE,
833         .ioctl = (void *)dst_ca_ioctl,
834         .open = dst_ca_open,
835         .release = dst_ca_release,
836         .read = dst_ca_read,
837         .write = dst_ca_write
838 };
839
840 static struct dvb_device dvbdev_ca = {
841         .priv = NULL,
842         .users = 1,
843         .readers = 1,
844         .writers = 1,
845         .fops = &dst_ca_fops
846 };
847
848 int dst_ca_attach(struct dst_state *dst, struct dvb_adapter *dvb_adapter)
849 {
850         struct dvb_device *dvbdev;
851         if (verbose > 4)
852                 dprintk("%s:registering DST-CA device\n", __FUNCTION__);
853         dvb_register_device(dvb_adapter, &dvbdev, &dvbdev_ca, dst, DVB_DEVICE_CA);
854         return 0;
855 }
856
857 EXPORT_SYMBOL(dst_ca_attach);
858
859 MODULE_DESCRIPTION("DST DVB-S/T/C Combo CA driver");
860 MODULE_AUTHOR("Manu Abraham");
861 MODULE_LICENSE("GPL");