2 CA-driver for TwinHan DST Frontend/Card
4 Copyright (C) 2004, 2005 Manu Abraham (manu@kromtek.com)
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.
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.
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.
21 #include <linux/kernel.h>
22 #include <linux/module.h>
23 #include <linux/init.h>
24 #include <linux/string.h>
25 #include <linux/dvb/ca.h>
27 #include "dvb_frontend.h"
29 #include "dst_common.h"
31 #define DST_CA_ERROR 0
32 #define DST_CA_NOTICE 1
34 #define DST_CA_DEBUG 3
36 #define dprintk(x, y, z, format, arg...) do { \
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); \
48 printk(format, ## arg); \
53 static unsigned int verbose
= 5;
54 module_param(verbose
, int, 0644);
55 MODULE_PARM_DESC(verbose
, "verbose startup messages, default is 1 (yes)");
57 /* Need some more work */
58 static int ca_set_slot_descr(void)
60 /* We could make this more graceful ? */
64 /* Need some more work */
65 static int ca_set_pid(void)
67 /* We could make this more graceful ? */
71 static void put_command_and_length(u8
*data
, int command
, int length
)
73 data
[0] = (command
>> 16) & 0xff;
74 data
[1] = (command
>> 8) & 0xff;
75 data
[2] = command
& 0xff;
79 static void put_checksum(u8
*check_string
, int length
)
81 dprintk(verbose
, DST_CA_DEBUG
, 1, " Computing string checksum.");
82 dprintk(verbose
, DST_CA_DEBUG
, 1, " -> string length : 0x%02x", length
);
83 check_string
[length
] = dst_check_sum (check_string
, length
);
84 dprintk(verbose
, DST_CA_DEBUG
, 1, " -> checksum : 0x%02x", check_string
[length
]);
87 static int dst_ci_command(struct dst_state
* state
, u8
* data
, u8
*ca_string
, u8 len
, int read
)
91 mutex_lock(&state
->dst_mutex
);
95 if (write_dst(state
, data
, len
)) {
96 dprintk(verbose
, DST_CA_INFO
, 1, " Write not successful, trying to recover");
97 dst_error_recovery(state
);
100 if ((dst_pio_disable(state
)) < 0) {
101 dprintk(verbose
, DST_CA_ERROR
, 1, " DST PIO disable failed.");
104 if (read_dst(state
, &reply
, GET_ACK
) < 0) {
105 dprintk(verbose
, DST_CA_INFO
, 1, " Read not successful, trying to recover");
106 dst_error_recovery(state
);
110 if (! dst_wait_dst_ready(state
, LONG_DELAY
)) {
111 dprintk(verbose
, DST_CA_NOTICE
, 1, " 8820 not ready");
114 if (read_dst(state
, ca_string
, 128) < 0) { /* Try to make this dynamic */
115 dprintk(verbose
, DST_CA_INFO
, 1, " Read not successful, trying to recover");
116 dst_error_recovery(state
);
120 mutex_unlock(&state
->dst_mutex
);
124 mutex_unlock(&state
->dst_mutex
);
129 static int dst_put_ci(struct dst_state
*state
, u8
*data
, int len
, u8
*ca_string
, int read
)
131 u8 dst_ca_comm_err
= 0;
133 while (dst_ca_comm_err
< RETRIES
) {
134 dprintk(verbose
, DST_CA_NOTICE
, 1, " Put Command");
135 if (dst_ci_command(state
, data
, ca_string
, len
, read
)) { // If error
136 dst_error_recovery(state
);
137 dst_ca_comm_err
++; // work required here.
143 if(dst_ca_comm_err
== RETRIES
)
151 static int ca_get_app_info(struct dst_state
*state
)
153 int length
, str_length
;
154 static u8 command
[8] = {0x07, 0x40, 0x01, 0x00, 0x01, 0x00, 0x00, 0xff};
156 put_checksum(&command
[0], command
[0]);
157 if ((dst_put_ci(state
, command
, sizeof(command
), state
->messages
, GET_REPLY
)) < 0) {
158 dprintk(verbose
, DST_CA_ERROR
, 1, " -->dst_put_ci FAILED !");
161 dprintk(verbose
, DST_CA_INFO
, 1, " -->dst_put_ci SUCCESS !");
162 dprintk(verbose
, DST_CA_INFO
, 1, " ================================ CI Module Application Info ======================================");
163 dprintk(verbose
, DST_CA_INFO
, 1, " Application Type=[%d], Application Vendor=[%d], Vendor Code=[%d]\n%s: Application info=[%s]",
164 state
->messages
[7], (state
->messages
[8] << 8) | state
->messages
[9],
165 (state
->messages
[10] << 8) | state
->messages
[11], __FUNCTION__
, (char *)(&state
->messages
[12]));
166 dprintk(verbose
, DST_CA_INFO
, 1, " ==================================================================================================");
168 // Transform dst message to correct application_info message
169 length
= state
->messages
[5];
170 str_length
= length
- 6;
171 if (str_length
< 0) {
173 dprintk(verbose
, DST_CA_ERROR
, 1, "Invalid string length returned in ca_get_app_info(). Recovering.");
176 // First, the command and length fields
177 put_command_and_length(&state
->messages
[0], CA_APP_INFO
, length
);
179 // Copy application_type, application_manufacturer and manufacturer_code
180 memcpy(&state
->messages
[4], &state
->messages
[7], 5);
182 // Set string length and copy string
183 state
->messages
[9] = str_length
;
184 memcpy(&state
->messages
[10], &state
->messages
[12], str_length
);
189 static int ca_get_ca_info(struct dst_state
*state
)
191 int srcPtr
, dstPtr
, i
, num_ids
;
192 static u8 slot_command
[8] = {0x07, 0x40, 0x00, 0x00, 0x02, 0x00, 0x00, 0xff};
193 const int in_system_id_pos
= 8, out_system_id_pos
= 4, in_num_ids_pos
= 7;
195 put_checksum(&slot_command
[0], slot_command
[0]);
196 if ((dst_put_ci(state
, slot_command
, sizeof (slot_command
), state
->messages
, GET_REPLY
)) < 0) {
197 dprintk(verbose
, DST_CA_ERROR
, 1, " -->dst_put_ci FAILED !");
200 dprintk(verbose
, DST_CA_INFO
, 1, " -->dst_put_ci SUCCESS !");
203 dprintk(verbose
, DST_CA_INFO
, 0, " DST data = [");
204 for (i
= 0; i
< state
->messages
[0] + 1; i
++) {
205 dprintk(verbose
, DST_CA_INFO
, 0, " 0x%02x", state
->messages
[i
]);
207 dprintk(verbose
, DST_CA_INFO
, 0, "]\n");
209 // Set the command and length of the output
210 num_ids
= state
->messages
[in_num_ids_pos
];
211 if (num_ids
>= 100) {
213 dprintk(verbose
, DST_CA_ERROR
, 1, "Invalid number of ids (>100). Recovering.");
215 put_command_and_length(&state
->messages
[0], CA_INFO
, num_ids
* 2);
217 dprintk(verbose
, DST_CA_INFO
, 0, " CA_INFO = [");
218 srcPtr
= in_system_id_pos
;
219 dstPtr
= out_system_id_pos
;
220 for(i
= 0; i
< num_ids
; i
++) {
221 dprintk(verbose
, DST_CA_INFO
, 0, " 0x%02x%02x", state
->messages
[srcPtr
+ 0], state
->messages
[srcPtr
+ 1]);
223 state
->messages
[dstPtr
+ 0] = state
->messages
[srcPtr
+ 0];
224 state
->messages
[dstPtr
+ 1] = state
->messages
[srcPtr
+ 1];
228 dprintk(verbose
, DST_CA_INFO
, 0, "]\n");
233 static int ca_get_slot_caps(struct dst_state
*state
, struct ca_caps
*p_ca_caps
, void __user
*arg
)
237 static u8 slot_command
[8] = {0x07, 0x40, 0x02, 0x00, 0x02, 0x00, 0x00, 0xff};
239 put_checksum(&slot_command
[0], slot_command
[0]);
240 if ((dst_put_ci(state
, slot_command
, sizeof (slot_command
), slot_cap
, GET_REPLY
)) < 0) {
241 dprintk(verbose
, DST_CA_ERROR
, 1, " -->dst_put_ci FAILED !");
244 dprintk(verbose
, DST_CA_NOTICE
, 1, " -->dst_put_ci SUCCESS !");
246 /* Will implement the rest soon */
248 dprintk(verbose
, DST_CA_INFO
, 1, " Slot cap = [%d]", slot_cap
[7]);
249 dprintk(verbose
, DST_CA_INFO
, 0, "===================================\n");
250 for (i
= 0; i
< slot_cap
[0] + 1; i
++)
251 dprintk(verbose
, DST_CA_INFO
, 0, " %d", slot_cap
[i
]);
252 dprintk(verbose
, DST_CA_INFO
, 0, "\n");
254 p_ca_caps
->slot_num
= 1;
255 p_ca_caps
->slot_type
= 1;
256 p_ca_caps
->descr_num
= slot_cap
[7];
257 p_ca_caps
->descr_type
= 1;
259 if (copy_to_user(arg
, p_ca_caps
, sizeof (struct ca_caps
)))
265 /* Need some more work */
266 static int ca_get_slot_descr(struct dst_state
*state
, struct ca_msg
*p_ca_message
, void __user
*arg
)
272 static int ca_get_slot_info(struct dst_state
*state
, struct ca_slot_info
*p_ca_slot_info
, void __user
*arg
)
275 static u8 slot_command
[8] = {0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff};
277 u8
*slot_info
= state
->messages
;
279 put_checksum(&slot_command
[0], 7);
280 if ((dst_put_ci(state
, slot_command
, sizeof (slot_command
), slot_info
, GET_REPLY
)) < 0) {
281 dprintk(verbose
, DST_CA_ERROR
, 1, " -->dst_put_ci FAILED !");
284 dprintk(verbose
, DST_CA_INFO
, 1, " -->dst_put_ci SUCCESS !");
286 /* Will implement the rest soon */
288 dprintk(verbose
, DST_CA_INFO
, 1, " Slot info = [%d]", slot_info
[3]);
289 dprintk(verbose
, DST_CA_INFO
, 0, "===================================\n");
290 for (i
= 0; i
< 8; i
++)
291 dprintk(verbose
, DST_CA_INFO
, 0, " %d", slot_info
[i
]);
292 dprintk(verbose
, DST_CA_INFO
, 0, "\n");
294 if (slot_info
[4] & 0x80) {
295 p_ca_slot_info
->flags
= CA_CI_MODULE_PRESENT
;
296 p_ca_slot_info
->num
= 1;
297 p_ca_slot_info
->type
= CA_CI
;
298 } else if (slot_info
[4] & 0x40) {
299 p_ca_slot_info
->flags
= CA_CI_MODULE_READY
;
300 p_ca_slot_info
->num
= 1;
301 p_ca_slot_info
->type
= CA_CI
;
303 p_ca_slot_info
->flags
= 0;
305 if (copy_to_user(arg
, p_ca_slot_info
, sizeof (struct ca_slot_info
)))
312 static int ca_get_message(struct dst_state
*state
, struct ca_msg
*p_ca_message
, void __user
*arg
)
317 if (copy_from_user(p_ca_message
, arg
, sizeof (struct ca_msg
)))
320 if (p_ca_message
->msg
) {
321 dprintk(verbose
, DST_CA_NOTICE
, 1, " Message = [%02x %02x %02x]", p_ca_message
->msg
[0], p_ca_message
->msg
[1], p_ca_message
->msg
[2]);
323 for (i
= 0; i
< 3; i
++) {
324 command
= command
| p_ca_message
->msg
[i
];
326 command
= command
<< 8;
328 dprintk(verbose
, DST_CA_NOTICE
, 1, " Command=[0x%x]", command
);
332 memcpy(p_ca_message
->msg
, state
->messages
, 128);
333 if (copy_to_user(arg
, p_ca_message
, sizeof (struct ca_msg
)) )
337 memcpy(p_ca_message
->msg
, state
->messages
, 128);
338 if (copy_to_user(arg
, p_ca_message
, sizeof (struct ca_msg
)) )
347 static int handle_dst_tag(struct dst_state
*state
, struct ca_msg
*p_ca_message
, struct ca_msg
*hw_buffer
, u32 length
)
349 if (state
->dst_hw_cap
& DST_TYPE_HAS_SESSION
) {
350 hw_buffer
->msg
[2] = p_ca_message
->msg
[1]; /* MSB */
351 hw_buffer
->msg
[3] = p_ca_message
->msg
[2]; /* LSB */
354 dprintk(verbose
, DST_CA_ERROR
, 1, " Message too long ! *** Bailing Out *** !");
357 hw_buffer
->msg
[0] = (length
& 0xff) + 7;
358 hw_buffer
->msg
[1] = 0x40;
359 hw_buffer
->msg
[2] = 0x03;
360 hw_buffer
->msg
[3] = 0x00;
361 hw_buffer
->msg
[4] = 0x03;
362 hw_buffer
->msg
[5] = length
& 0xff;
363 hw_buffer
->msg
[6] = 0x00;
366 * Need to compute length for EN50221 section 8.3.2, for the time being
367 * assuming 8.3.2 is not applicable
369 memcpy(&hw_buffer
->msg
[7], &p_ca_message
->msg
[4], length
);
375 static int write_to_8820(struct dst_state
*state
, struct ca_msg
*hw_buffer
, u8 length
, u8 reply
)
377 if ((dst_put_ci(state
, hw_buffer
->msg
, length
, hw_buffer
->msg
, reply
)) < 0) {
378 dprintk(verbose
, DST_CA_ERROR
, 1, " DST-CI Command failed.");
379 dprintk(verbose
, DST_CA_NOTICE
, 1, " Resetting DST.");
380 rdc_reset_state(state
);
383 dprintk(verbose
, DST_CA_NOTICE
, 1, " DST-CI Command success.");
388 static u32
asn_1_decode(u8
*asn_1_array
)
390 u8 length_field
= 0, word_count
= 0, count
= 0;
393 length_field
= asn_1_array
[0];
394 dprintk(verbose
, DST_CA_DEBUG
, 1, " Length field=[%02x]", length_field
);
395 if (length_field
< 0x80) {
396 length
= length_field
& 0x7f;
397 dprintk(verbose
, DST_CA_DEBUG
, 1, " Length=[%02x]\n", length
);
399 word_count
= length_field
& 0x7f;
400 for (count
= 0; count
< word_count
; count
++) {
401 length
= length
<< 8;
402 length
+= asn_1_array
[count
+ 1];
403 dprintk(verbose
, DST_CA_DEBUG
, 1, " Length=[%04x]", length
);
409 static int debug_string(u8
*msg
, u32 length
, u32 offset
)
413 dprintk(verbose
, DST_CA_DEBUG
, 0, " String=[ ");
414 for (i
= offset
; i
< length
; i
++)
415 dprintk(verbose
, DST_CA_DEBUG
, 0, "%02x ", msg
[i
]);
416 dprintk(verbose
, DST_CA_DEBUG
, 0, "]\n");
422 static int ca_set_pmt(struct dst_state
*state
, struct ca_msg
*p_ca_message
, struct ca_msg
*hw_buffer
, u8 reply
, u8 query
)
427 length
= asn_1_decode(&p_ca_message
->msg
[3]);
428 dprintk(verbose
, DST_CA_DEBUG
, 1, " CA Message length=[%d]", length
);
429 debug_string(&p_ca_message
->msg
[4], length
, 0); /* length is excluding tag & length */
431 memset(hw_buffer
->msg
, '\0', length
);
432 handle_dst_tag(state
, p_ca_message
, hw_buffer
, length
);
433 put_checksum(hw_buffer
->msg
, hw_buffer
->msg
[0]);
435 debug_string(hw_buffer
->msg
, (length
+ tag_length
), 0); /* tags too */
436 write_to_8820(state
, hw_buffer
, (length
+ tag_length
), reply
);
442 /* Board supports CA PMT reply ? */
443 static int dst_check_ca_pmt(struct dst_state
*state
, struct ca_msg
*p_ca_message
, struct ca_msg
*hw_buffer
)
445 int ca_pmt_reply_test
= 0;
448 /* Not there yet but soon */
450 /* CA PMT Reply capable */
451 if (ca_pmt_reply_test
) {
452 if ((ca_set_pmt(state
, p_ca_message
, hw_buffer
, 1, GET_REPLY
)) < 0) {
453 dprintk(verbose
, DST_CA_ERROR
, 1, " ca_set_pmt.. failed !");
457 /* Process CA PMT Reply */
458 /* will implement soon */
459 dprintk(verbose
, DST_CA_ERROR
, 1, " Not there yet");
461 /* CA PMT Reply not capable */
462 if (!ca_pmt_reply_test
) {
463 if ((ca_set_pmt(state
, p_ca_message
, hw_buffer
, 0, NO_REPLY
)) < 0) {
464 dprintk(verbose
, DST_CA_ERROR
, 1, " ca_set_pmt.. failed !");
467 dprintk(verbose
, DST_CA_NOTICE
, 1, " ca_set_pmt.. success !");
468 /* put a dummy message */
474 static int ca_send_message(struct dst_state
*state
, struct ca_msg
*p_ca_message
, void __user
*arg
)
477 unsigned int ca_message_header_len
;
480 struct ca_msg
*hw_buffer
;
483 if ((hw_buffer
= (struct ca_msg
*) kmalloc(sizeof (struct ca_msg
), GFP_KERNEL
)) == NULL
) {
484 dprintk(verbose
, DST_CA_ERROR
, 1, " Memory allocation failure");
487 dprintk(verbose
, DST_CA_DEBUG
, 1, " ");
489 if (copy_from_user(p_ca_message
, arg
, sizeof (struct ca_msg
))) {
491 goto free_mem_and_exit
;
495 if (p_ca_message
->msg
) {
496 ca_message_header_len
= p_ca_message
->length
; /* Restore it back when you are done */
500 for (i
= 0; i
< 3; i
++) {
501 command
= command
| p_ca_message
->msg
[i
];
503 command
= command
<< 8;
505 dprintk(verbose
, DST_CA_DEBUG
, 1, " Command=[0x%x]\n", command
);
509 dprintk(verbose
, DST_CA_DEBUG
, 1, "Command = SEND_CA_PMT");
510 if ((ca_set_pmt(state
, p_ca_message
, hw_buffer
, 0, 0)) < 0) { // code simplification started
511 dprintk(verbose
, DST_CA_ERROR
, 1, " -->CA_PMT Failed !");
513 goto free_mem_and_exit
;
515 dprintk(verbose
, DST_CA_INFO
, 1, " -->CA_PMT Success !");
518 dprintk(verbose
, DST_CA_INFO
, 1, "Command = CA_PMT_REPLY");
519 /* Have to handle the 2 basic types of cards here */
520 if ((dst_check_ca_pmt(state
, p_ca_message
, hw_buffer
)) < 0) {
521 dprintk(verbose
, DST_CA_ERROR
, 1, " -->CA_PMT_REPLY Failed !");
523 goto free_mem_and_exit
;
525 dprintk(verbose
, DST_CA_INFO
, 1, " -->CA_PMT_REPLY Success !");
527 case CA_APP_INFO_ENQUIRY
: // only for debugging
528 dprintk(verbose
, DST_CA_INFO
, 1, " Getting Cam Application information");
530 if ((ca_get_app_info(state
)) < 0) {
531 dprintk(verbose
, DST_CA_ERROR
, 1, " -->CA_APP_INFO_ENQUIRY Failed !");
533 goto free_mem_and_exit
;
535 dprintk(verbose
, DST_CA_INFO
, 1, " -->CA_APP_INFO_ENQUIRY Success !");
537 case CA_INFO_ENQUIRY
:
538 dprintk(verbose
, DST_CA_INFO
, 1, " Getting CA Information");
540 if ((ca_get_ca_info(state
)) < 0) {
541 dprintk(verbose
, DST_CA_ERROR
, 1, " -->CA_INFO_ENQUIRY Failed !");
543 goto free_mem_and_exit
;
545 dprintk(verbose
, DST_CA_INFO
, 1, " -->CA_INFO_ENQUIRY Success !");
555 static int dst_ca_ioctl(struct inode
*inode
, struct file
*file
, unsigned int cmd
, unsigned long ioctl_arg
)
557 struct dvb_device
* dvbdev
= (struct dvb_device
*) file
->private_data
;
558 struct dst_state
* state
= (struct dst_state
*) dvbdev
->priv
;
559 struct ca_slot_info
*p_ca_slot_info
;
560 struct ca_caps
*p_ca_caps
;
561 struct ca_msg
*p_ca_message
;
562 void __user
*arg
= (void __user
*)ioctl_arg
;
565 p_ca_message
= kmalloc(sizeof (struct ca_msg
), GFP_KERNEL
);
566 p_ca_slot_info
= kmalloc(sizeof (struct ca_slot_info
), GFP_KERNEL
);
567 p_ca_caps
= kmalloc(sizeof (struct ca_caps
), GFP_KERNEL
);
568 if (!p_ca_message
|| !p_ca_slot_info
|| !p_ca_caps
) {
569 dprintk(verbose
, DST_CA_ERROR
, 1, " Memory allocation failure");
571 goto free_mem_and_exit
;
574 /* We have now only the standard ioctl's, the driver is upposed to handle internals. */
577 dprintk(verbose
, DST_CA_INFO
, 1, " Sending message");
578 if ((ca_send_message(state
, p_ca_message
, arg
)) < 0) {
579 dprintk(verbose
, DST_CA_ERROR
, 1, " -->CA_SEND_MSG Failed !");
581 goto free_mem_and_exit
;
585 dprintk(verbose
, DST_CA_INFO
, 1, " Getting message");
586 if ((ca_get_message(state
, p_ca_message
, arg
)) < 0) {
587 dprintk(verbose
, DST_CA_ERROR
, 1, " -->CA_GET_MSG Failed !");
589 goto free_mem_and_exit
;
591 dprintk(verbose
, DST_CA_INFO
, 1, " -->CA_GET_MSG Success !");
594 dprintk(verbose
, DST_CA_ERROR
, 1, " Resetting DST");
595 dst_error_bailout(state
);
598 case CA_GET_SLOT_INFO
:
599 dprintk(verbose
, DST_CA_INFO
, 1, " Getting Slot info");
600 if ((ca_get_slot_info(state
, p_ca_slot_info
, arg
)) < 0) {
601 dprintk(verbose
, DST_CA_ERROR
, 1, " -->CA_GET_SLOT_INFO Failed !");
603 goto free_mem_and_exit
;
605 dprintk(verbose
, DST_CA_INFO
, 1, " -->CA_GET_SLOT_INFO Success !");
608 dprintk(verbose
, DST_CA_INFO
, 1, " Getting Slot capabilities");
609 if ((ca_get_slot_caps(state
, p_ca_caps
, arg
)) < 0) {
610 dprintk(verbose
, DST_CA_ERROR
, 1, " -->CA_GET_CAP Failed !");
612 goto free_mem_and_exit
;
614 dprintk(verbose
, DST_CA_INFO
, 1, " -->CA_GET_CAP Success !");
616 case CA_GET_DESCR_INFO
:
617 dprintk(verbose
, DST_CA_INFO
, 1, " Getting descrambler description");
618 if ((ca_get_slot_descr(state
, p_ca_message
, arg
)) < 0) {
619 dprintk(verbose
, DST_CA_ERROR
, 1, " -->CA_GET_DESCR_INFO Failed !");
621 goto free_mem_and_exit
;
623 dprintk(verbose
, DST_CA_INFO
, 1, " -->CA_GET_DESCR_INFO Success !");
626 dprintk(verbose
, DST_CA_INFO
, 1, " Setting descrambler");
627 if ((ca_set_slot_descr()) < 0) {
628 dprintk(verbose
, DST_CA_ERROR
, 1, " -->CA_SET_DESCR Failed !");
630 goto free_mem_and_exit
;
632 dprintk(verbose
, DST_CA_INFO
, 1, " -->CA_SET_DESCR Success !");
635 dprintk(verbose
, DST_CA_INFO
, 1, " Setting PID");
636 if ((ca_set_pid()) < 0) {
637 dprintk(verbose
, DST_CA_ERROR
, 1, " -->CA_SET_PID Failed !");
639 goto free_mem_and_exit
;
641 dprintk(verbose
, DST_CA_INFO
, 1, " -->CA_SET_PID Success !");
643 result
= -EOPNOTSUPP
;
646 kfree (p_ca_message
);
647 kfree (p_ca_slot_info
);
653 static int dst_ca_open(struct inode
*inode
, struct file
*file
)
655 dprintk(verbose
, DST_CA_DEBUG
, 1, " Device opened [%p] ", file
);
656 try_module_get(THIS_MODULE
);
661 static int dst_ca_release(struct inode
*inode
, struct file
*file
)
663 dprintk(verbose
, DST_CA_DEBUG
, 1, " Device closed.");
664 module_put(THIS_MODULE
);
669 static ssize_t
dst_ca_read(struct file
*file
, char __user
*buffer
, size_t length
, loff_t
*offset
)
671 ssize_t bytes_read
= 0;
673 dprintk(verbose
, DST_CA_DEBUG
, 1, " Device read.");
678 static ssize_t
dst_ca_write(struct file
*file
, const char __user
*buffer
, size_t length
, loff_t
*offset
)
680 dprintk(verbose
, DST_CA_DEBUG
, 1, " Device write.");
685 static struct file_operations dst_ca_fops
= {
686 .owner
= THIS_MODULE
,
687 .ioctl
= dst_ca_ioctl
,
689 .release
= dst_ca_release
,
691 .write
= dst_ca_write
694 static struct dvb_device dvbdev_ca
= {
702 struct dvb_device
*dst_ca_attach(struct dst_state
*dst
, struct dvb_adapter
*dvb_adapter
)
704 struct dvb_device
*dvbdev
;
706 dprintk(verbose
, DST_CA_ERROR
, 1, "registering DST-CA device");
707 if (dvb_register_device(dvb_adapter
, &dvbdev
, &dvbdev_ca
, dst
, DVB_DEVICE_CA
) == 0) {
708 dst
->dst_ca
= dvbdev
;
715 EXPORT_SYMBOL(dst_ca_attach
);
717 MODULE_DESCRIPTION("DST DVB-S/T/C Combo CA driver");
718 MODULE_AUTHOR("Manu Abraham");
719 MODULE_LICENSE("GPL");