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/slab.h>
24 #include <linux/init.h>
25 #include <linux/smp_lock.h>
26 #include <linux/string.h>
27 #include <linux/dvb/ca.h>
29 #include "dvb_frontend.h"
31 #include "dst_common.h"
33 #define DST_CA_ERROR 0
34 #define DST_CA_NOTICE 1
36 #define DST_CA_DEBUG 3
38 #define dprintk(x, y, z, format, arg...) do { \
40 if ((x > DST_CA_ERROR) && (x > y)) \
41 printk(KERN_ERR "%s: " format "\n", __func__ , ##arg); \
42 else if ((x > DST_CA_NOTICE) && (x > y)) \
43 printk(KERN_NOTICE "%s: " format "\n", __func__ , ##arg); \
44 else if ((x > DST_CA_INFO) && (x > y)) \
45 printk(KERN_INFO "%s: " format "\n", __func__ , ##arg); \
46 else if ((x > DST_CA_DEBUG) && (x > y)) \
47 printk(KERN_DEBUG "%s: " format "\n", __func__ , ##arg); \
50 printk(format, ## arg); \
55 static unsigned int verbose = 5;
56 module_param(verbose, int, 0644);
57 MODULE_PARM_DESC(verbose, "verbose startup messages, default is 1 (yes)");
59 /* Need some more work */
60 static int ca_set_slot_descr(void)
62 /* We could make this more graceful ? */
66 /* Need some more work */
67 static int ca_set_pid(void)
69 /* We could make this more graceful ? */
73 static void put_command_and_length(u8 *data, int command, int length)
75 data[0] = (command >> 16) & 0xff;
76 data[1] = (command >> 8) & 0xff;
77 data[2] = command & 0xff;
81 static void put_checksum(u8 *check_string, int length)
83 dprintk(verbose, DST_CA_DEBUG, 1, " Computing string checksum.");
84 dprintk(verbose, DST_CA_DEBUG, 1, " -> string length : 0x%02x", length);
85 check_string[length] = dst_check_sum (check_string, length);
86 dprintk(verbose, DST_CA_DEBUG, 1, " -> checksum : 0x%02x", check_string[length]);
89 static int dst_ci_command(struct dst_state* state, u8 * data, u8 *ca_string, u8 len, int read)
93 mutex_lock(&state->dst_mutex);
97 if (write_dst(state, data, len)) {
98 dprintk(verbose, DST_CA_INFO, 1, " Write not successful, trying to recover");
99 dst_error_recovery(state);
102 if ((dst_pio_disable(state)) < 0) {
103 dprintk(verbose, DST_CA_ERROR, 1, " DST PIO disable failed.");
106 if (read_dst(state, &reply, GET_ACK) < 0) {
107 dprintk(verbose, DST_CA_INFO, 1, " Read not successful, trying to recover");
108 dst_error_recovery(state);
112 if (! dst_wait_dst_ready(state, LONG_DELAY)) {
113 dprintk(verbose, DST_CA_NOTICE, 1, " 8820 not ready");
116 if (read_dst(state, ca_string, 128) < 0) { /* Try to make this dynamic */
117 dprintk(verbose, DST_CA_INFO, 1, " Read not successful, trying to recover");
118 dst_error_recovery(state);
122 mutex_unlock(&state->dst_mutex);
126 mutex_unlock(&state->dst_mutex);
131 static int dst_put_ci(struct dst_state *state, u8 *data, int len, u8 *ca_string, int read)
133 u8 dst_ca_comm_err = 0;
135 while (dst_ca_comm_err < RETRIES) {
136 dprintk(verbose, DST_CA_NOTICE, 1, " Put Command");
137 if (dst_ci_command(state, data, ca_string, len, read)) { // If error
138 dst_error_recovery(state);
139 dst_ca_comm_err++; // work required here.
145 if(dst_ca_comm_err == RETRIES)
153 static int ca_get_app_info(struct dst_state *state)
155 int length, str_length;
156 static u8 command[8] = {0x07, 0x40, 0x01, 0x00, 0x01, 0x00, 0x00, 0xff};
158 put_checksum(&command[0], command[0]);
159 if ((dst_put_ci(state, command, sizeof(command), state->messages, GET_REPLY)) < 0) {
160 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
163 dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
164 dprintk(verbose, DST_CA_INFO, 1, " ================================ CI Module Application Info ======================================");
165 dprintk(verbose, DST_CA_INFO, 1, " Application Type=[%d], Application Vendor=[%d], Vendor Code=[%d]\n%s: Application info=[%s]",
166 state->messages[7], (state->messages[8] << 8) | state->messages[9],
167 (state->messages[10] << 8) | state->messages[11], __func__, (char *)(&state->messages[12]));
168 dprintk(verbose, DST_CA_INFO, 1, " ==================================================================================================");
170 // Transform dst message to correct application_info message
171 length = state->messages[5];
172 str_length = length - 6;
173 if (str_length < 0) {
175 dprintk(verbose, DST_CA_ERROR, 1, "Invalid string length returned in ca_get_app_info(). Recovering.");
178 // First, the command and length fields
179 put_command_and_length(&state->messages[0], CA_APP_INFO, length);
181 // Copy application_type, application_manufacturer and manufacturer_code
182 memcpy(&state->messages[4], &state->messages[7], 5);
184 // Set string length and copy string
185 state->messages[9] = str_length;
186 memcpy(&state->messages[10], &state->messages[12], str_length);
191 static int ca_get_ca_info(struct dst_state *state)
193 int srcPtr, dstPtr, i, num_ids;
194 static u8 slot_command[8] = {0x07, 0x40, 0x00, 0x00, 0x02, 0x00, 0x00, 0xff};
195 const int in_system_id_pos = 8, out_system_id_pos = 4, in_num_ids_pos = 7;
197 put_checksum(&slot_command[0], slot_command[0]);
198 if ((dst_put_ci(state, slot_command, sizeof (slot_command), state->messages, GET_REPLY)) < 0) {
199 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
202 dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
205 dprintk(verbose, DST_CA_INFO, 0, " DST data = [");
206 for (i = 0; i < state->messages[0] + 1; i++) {
207 dprintk(verbose, DST_CA_INFO, 0, " 0x%02x", state->messages[i]);
209 dprintk(verbose, DST_CA_INFO, 0, "]\n");
211 // Set the command and length of the output
212 num_ids = state->messages[in_num_ids_pos];
213 if (num_ids >= 100) {
215 dprintk(verbose, DST_CA_ERROR, 1, "Invalid number of ids (>100). Recovering.");
217 put_command_and_length(&state->messages[0], CA_INFO, num_ids * 2);
219 dprintk(verbose, DST_CA_INFO, 0, " CA_INFO = [");
220 srcPtr = in_system_id_pos;
221 dstPtr = out_system_id_pos;
222 for(i = 0; i < num_ids; i++) {
223 dprintk(verbose, DST_CA_INFO, 0, " 0x%02x%02x", state->messages[srcPtr + 0], state->messages[srcPtr + 1]);
225 state->messages[dstPtr + 0] = state->messages[srcPtr + 0];
226 state->messages[dstPtr + 1] = state->messages[srcPtr + 1];
230 dprintk(verbose, DST_CA_INFO, 0, "]\n");
235 static int ca_get_slot_caps(struct dst_state *state, struct ca_caps *p_ca_caps, void __user *arg)
239 static u8 slot_command[8] = {0x07, 0x40, 0x02, 0x00, 0x02, 0x00, 0x00, 0xff};
241 put_checksum(&slot_command[0], slot_command[0]);
242 if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_cap, GET_REPLY)) < 0) {
243 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
246 dprintk(verbose, DST_CA_NOTICE, 1, " -->dst_put_ci SUCCESS !");
248 /* Will implement the rest soon */
250 dprintk(verbose, DST_CA_INFO, 1, " Slot cap = [%d]", slot_cap[7]);
251 dprintk(verbose, DST_CA_INFO, 0, "===================================\n");
252 for (i = 0; i < slot_cap[0] + 1; i++)
253 dprintk(verbose, DST_CA_INFO, 0, " %d", slot_cap[i]);
254 dprintk(verbose, DST_CA_INFO, 0, "\n");
256 p_ca_caps->slot_num = 1;
257 p_ca_caps->slot_type = 1;
258 p_ca_caps->descr_num = slot_cap[7];
259 p_ca_caps->descr_type = 1;
261 if (copy_to_user(arg, p_ca_caps, sizeof (struct ca_caps)))
267 /* Need some more work */
268 static int ca_get_slot_descr(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
274 static int ca_get_slot_info(struct dst_state *state, struct ca_slot_info *p_ca_slot_info, void __user *arg)
277 static u8 slot_command[8] = {0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff};
279 u8 *slot_info = state->messages;
281 put_checksum(&slot_command[0], 7);
282 if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_info, GET_REPLY)) < 0) {
283 dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
286 dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
288 /* Will implement the rest soon */
290 dprintk(verbose, DST_CA_INFO, 1, " Slot info = [%d]", slot_info[3]);
291 dprintk(verbose, DST_CA_INFO, 0, "===================================\n");
292 for (i = 0; i < 8; i++)
293 dprintk(verbose, DST_CA_INFO, 0, " %d", slot_info[i]);
294 dprintk(verbose, DST_CA_INFO, 0, "\n");
296 if (slot_info[4] & 0x80) {
297 p_ca_slot_info->flags = CA_CI_MODULE_PRESENT;
298 p_ca_slot_info->num = 1;
299 p_ca_slot_info->type = CA_CI;
300 } else if (slot_info[4] & 0x40) {
301 p_ca_slot_info->flags = CA_CI_MODULE_READY;
302 p_ca_slot_info->num = 1;
303 p_ca_slot_info->type = CA_CI;
305 p_ca_slot_info->flags = 0;
307 if (copy_to_user(arg, p_ca_slot_info, sizeof (struct ca_slot_info)))
314 static int ca_get_message(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
319 if (copy_from_user(p_ca_message, arg, sizeof (struct ca_msg)))
322 if (p_ca_message->msg) {
323 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]);
325 for (i = 0; i < 3; i++) {
326 command = command | p_ca_message->msg[i];
328 command = command << 8;
330 dprintk(verbose, DST_CA_NOTICE, 1, " Command=[0x%x]", command);
334 memcpy(p_ca_message->msg, state->messages, 128);
335 if (copy_to_user(arg, p_ca_message, sizeof (struct ca_msg)) )
339 memcpy(p_ca_message->msg, state->messages, 128);
340 if (copy_to_user(arg, p_ca_message, sizeof (struct ca_msg)) )
349 static int handle_dst_tag(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u32 length)
351 if (state->dst_hw_cap & DST_TYPE_HAS_SESSION) {
352 hw_buffer->msg[2] = p_ca_message->msg[1]; /* MSB */
353 hw_buffer->msg[3] = p_ca_message->msg[2]; /* LSB */
356 dprintk(verbose, DST_CA_ERROR, 1, " Message too long ! *** Bailing Out *** !");
359 hw_buffer->msg[0] = (length & 0xff) + 7;
360 hw_buffer->msg[1] = 0x40;
361 hw_buffer->msg[2] = 0x03;
362 hw_buffer->msg[3] = 0x00;
363 hw_buffer->msg[4] = 0x03;
364 hw_buffer->msg[5] = length & 0xff;
365 hw_buffer->msg[6] = 0x00;
368 * Need to compute length for EN50221 section 8.3.2, for the time being
369 * assuming 8.3.2 is not applicable
371 memcpy(&hw_buffer->msg[7], &p_ca_message->msg[4], length);
377 static int write_to_8820(struct dst_state *state, struct ca_msg *hw_buffer, u8 length, u8 reply)
379 if ((dst_put_ci(state, hw_buffer->msg, length, hw_buffer->msg, reply)) < 0) {
380 dprintk(verbose, DST_CA_ERROR, 1, " DST-CI Command failed.");
381 dprintk(verbose, DST_CA_NOTICE, 1, " Resetting DST.");
382 rdc_reset_state(state);
385 dprintk(verbose, DST_CA_NOTICE, 1, " DST-CI Command success.");
390 static u32 asn_1_decode(u8 *asn_1_array)
392 u8 length_field = 0, word_count = 0, count = 0;
395 length_field = asn_1_array[0];
396 dprintk(verbose, DST_CA_DEBUG, 1, " Length field=[%02x]", length_field);
397 if (length_field < 0x80) {
398 length = length_field & 0x7f;
399 dprintk(verbose, DST_CA_DEBUG, 1, " Length=[%02x]\n", length);
401 word_count = length_field & 0x7f;
402 for (count = 0; count < word_count; count++) {
403 length = length << 8;
404 length += asn_1_array[count + 1];
405 dprintk(verbose, DST_CA_DEBUG, 1, " Length=[%04x]", length);
411 static int debug_string(u8 *msg, u32 length, u32 offset)
415 dprintk(verbose, DST_CA_DEBUG, 0, " String=[ ");
416 for (i = offset; i < length; i++)
417 dprintk(verbose, DST_CA_DEBUG, 0, "%02x ", msg[i]);
418 dprintk(verbose, DST_CA_DEBUG, 0, "]\n");
424 static int ca_set_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u8 reply, u8 query)
429 length = asn_1_decode(&p_ca_message->msg[3]);
430 dprintk(verbose, DST_CA_DEBUG, 1, " CA Message length=[%d]", length);
431 debug_string(&p_ca_message->msg[4], length, 0); /* length is excluding tag & length */
433 memset(hw_buffer->msg, '\0', length);
434 handle_dst_tag(state, p_ca_message, hw_buffer, length);
435 put_checksum(hw_buffer->msg, hw_buffer->msg[0]);
437 debug_string(hw_buffer->msg, (length + tag_length), 0); /* tags too */
438 write_to_8820(state, hw_buffer, (length + tag_length), reply);
444 /* Board supports CA PMT reply ? */
445 static int dst_check_ca_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer)
447 int ca_pmt_reply_test = 0;
450 /* Not there yet but soon */
452 /* CA PMT Reply capable */
453 if (ca_pmt_reply_test) {
454 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 1, GET_REPLY)) < 0) {
455 dprintk(verbose, DST_CA_ERROR, 1, " ca_set_pmt.. failed !");
459 /* Process CA PMT Reply */
460 /* will implement soon */
461 dprintk(verbose, DST_CA_ERROR, 1, " Not there yet");
463 /* CA PMT Reply not capable */
464 if (!ca_pmt_reply_test) {
465 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, NO_REPLY)) < 0) {
466 dprintk(verbose, DST_CA_ERROR, 1, " ca_set_pmt.. failed !");
469 dprintk(verbose, DST_CA_NOTICE, 1, " ca_set_pmt.. success !");
470 /* put a dummy message */
476 static int ca_send_message(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
479 unsigned int ca_message_header_len;
482 struct ca_msg *hw_buffer;
485 if ((hw_buffer = kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) {
486 dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure");
489 dprintk(verbose, DST_CA_DEBUG, 1, " ");
491 if (copy_from_user(p_ca_message, arg, sizeof (struct ca_msg))) {
493 goto free_mem_and_exit;
497 if (p_ca_message->msg) {
498 ca_message_header_len = p_ca_message->length; /* Restore it back when you are done */
502 for (i = 0; i < 3; i++) {
503 command = command | p_ca_message->msg[i];
505 command = command << 8;
507 dprintk(verbose, DST_CA_DEBUG, 1, " Command=[0x%x]\n", command);
511 dprintk(verbose, DST_CA_DEBUG, 1, "Command = SEND_CA_PMT");
512 if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, 0)) < 0) { // code simplification started
513 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_PMT Failed !");
515 goto free_mem_and_exit;
517 dprintk(verbose, DST_CA_INFO, 1, " -->CA_PMT Success !");
520 dprintk(verbose, DST_CA_INFO, 1, "Command = CA_PMT_REPLY");
521 /* Have to handle the 2 basic types of cards here */
522 if ((dst_check_ca_pmt(state, p_ca_message, hw_buffer)) < 0) {
523 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_PMT_REPLY Failed !");
525 goto free_mem_and_exit;
527 dprintk(verbose, DST_CA_INFO, 1, " -->CA_PMT_REPLY Success !");
529 case CA_APP_INFO_ENQUIRY: // only for debugging
530 dprintk(verbose, DST_CA_INFO, 1, " Getting Cam Application information");
532 if ((ca_get_app_info(state)) < 0) {
533 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_APP_INFO_ENQUIRY Failed !");
535 goto free_mem_and_exit;
537 dprintk(verbose, DST_CA_INFO, 1, " -->CA_APP_INFO_ENQUIRY Success !");
539 case CA_INFO_ENQUIRY:
540 dprintk(verbose, DST_CA_INFO, 1, " Getting CA Information");
542 if ((ca_get_ca_info(state)) < 0) {
543 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_INFO_ENQUIRY Failed !");
545 goto free_mem_and_exit;
547 dprintk(verbose, DST_CA_INFO, 1, " -->CA_INFO_ENQUIRY Success !");
557 static long dst_ca_ioctl(struct file *file, unsigned int cmd, unsigned long ioctl_arg)
559 struct dvb_device *dvbdev;
560 struct dst_state *state;
561 struct ca_slot_info *p_ca_slot_info;
562 struct ca_caps *p_ca_caps;
563 struct ca_msg *p_ca_message;
564 void __user *arg = (void __user *)ioctl_arg;
568 dvbdev = file->private_data;
569 state = (struct dst_state *)dvbdev->priv;
570 p_ca_message = kmalloc(sizeof (struct ca_msg), GFP_KERNEL);
571 p_ca_slot_info = kmalloc(sizeof (struct ca_slot_info), GFP_KERNEL);
572 p_ca_caps = kmalloc(sizeof (struct ca_caps), GFP_KERNEL);
573 if (!p_ca_message || !p_ca_slot_info || !p_ca_caps) {
574 dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure");
576 goto free_mem_and_exit;
579 /* We have now only the standard ioctl's, the driver is upposed to handle internals. */
582 dprintk(verbose, DST_CA_INFO, 1, " Sending message");
583 if ((ca_send_message(state, p_ca_message, arg)) < 0) {
584 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SEND_MSG Failed !");
586 goto free_mem_and_exit;
590 dprintk(verbose, DST_CA_INFO, 1, " Getting message");
591 if ((ca_get_message(state, p_ca_message, arg)) < 0) {
592 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_MSG Failed !");
594 goto free_mem_and_exit;
596 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_MSG Success !");
599 dprintk(verbose, DST_CA_ERROR, 1, " Resetting DST");
600 dst_error_bailout(state);
603 case CA_GET_SLOT_INFO:
604 dprintk(verbose, DST_CA_INFO, 1, " Getting Slot info");
605 if ((ca_get_slot_info(state, p_ca_slot_info, arg)) < 0) {
606 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_SLOT_INFO Failed !");
608 goto free_mem_and_exit;
610 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_SLOT_INFO Success !");
613 dprintk(verbose, DST_CA_INFO, 1, " Getting Slot capabilities");
614 if ((ca_get_slot_caps(state, p_ca_caps, arg)) < 0) {
615 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_CAP Failed !");
617 goto free_mem_and_exit;
619 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_CAP Success !");
621 case CA_GET_DESCR_INFO:
622 dprintk(verbose, DST_CA_INFO, 1, " Getting descrambler description");
623 if ((ca_get_slot_descr(state, p_ca_message, arg)) < 0) {
624 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_DESCR_INFO Failed !");
626 goto free_mem_and_exit;
628 dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_DESCR_INFO Success !");
631 dprintk(verbose, DST_CA_INFO, 1, " Setting descrambler");
632 if ((ca_set_slot_descr()) < 0) {
633 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SET_DESCR Failed !");
635 goto free_mem_and_exit;
637 dprintk(verbose, DST_CA_INFO, 1, " -->CA_SET_DESCR Success !");
640 dprintk(verbose, DST_CA_INFO, 1, " Setting PID");
641 if ((ca_set_pid()) < 0) {
642 dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SET_PID Failed !");
644 goto free_mem_and_exit;
646 dprintk(verbose, DST_CA_INFO, 1, " -->CA_SET_PID Success !");
648 result = -EOPNOTSUPP;
651 kfree (p_ca_message);
652 kfree (p_ca_slot_info);
659 static int dst_ca_open(struct inode *inode, struct file *file)
661 dprintk(verbose, DST_CA_DEBUG, 1, " Device opened [%p] ", file);
662 try_module_get(THIS_MODULE);
667 static int dst_ca_release(struct inode *inode, struct file *file)
669 dprintk(verbose, DST_CA_DEBUG, 1, " Device closed.");
670 module_put(THIS_MODULE);
675 static ssize_t dst_ca_read(struct file *file, char __user *buffer, size_t length, loff_t *offset)
677 ssize_t bytes_read = 0;
679 dprintk(verbose, DST_CA_DEBUG, 1, " Device read.");
684 static ssize_t dst_ca_write(struct file *file, const char __user *buffer, size_t length, loff_t *offset)
686 dprintk(verbose, DST_CA_DEBUG, 1, " Device write.");
691 static const struct file_operations dst_ca_fops = {
692 .owner = THIS_MODULE,
693 .unlocked_ioctl = dst_ca_ioctl,
695 .release = dst_ca_release,
697 .write = dst_ca_write,
698 .llseek = noop_llseek,
701 static struct dvb_device dvbdev_ca = {
709 struct dvb_device *dst_ca_attach(struct dst_state *dst, struct dvb_adapter *dvb_adapter)
711 struct dvb_device *dvbdev;
713 dprintk(verbose, DST_CA_ERROR, 1, "registering DST-CA device");
714 if (dvb_register_device(dvb_adapter, &dvbdev, &dvbdev_ca, dst, DVB_DEVICE_CA) == 0) {
715 dst->dst_ca = dvbdev;
722 EXPORT_SYMBOL(dst_ca_attach);
724 MODULE_DESCRIPTION("DST DVB-S/T/C Combo CA driver");
725 MODULE_AUTHOR("Manu Abraham");
726 MODULE_LICENSE("GPL");