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path: root/drivers/media/pci/bt8xx/dst_ca.c
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Diffstat (limited to 'drivers/media/pci/bt8xx/dst_ca.c')
-rw-r--r--drivers/media/pci/bt8xx/dst_ca.c92
1 files changed, 25 insertions, 67 deletions
diff --git a/drivers/media/pci/bt8xx/dst_ca.c b/drivers/media/pci/bt8xx/dst_ca.c
index 90f4263452d3..a9cc6e7a57f9 100644
--- a/drivers/media/pci/bt8xx/dst_ca.c
+++ b/drivers/media/pci/bt8xx/dst_ca.c
@@ -1,21 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
CA-driver for TwinHan DST Frontend/Card
Copyright (C) 2004, 2005 Manu Abraham (manu@kromtek.com)
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/kernel.h>
@@ -25,8 +13,8 @@
#include <linux/mutex.h>
#include <linux/string.h>
#include <linux/dvb/ca.h>
-#include "dvbdev.h"
-#include "dvb_frontend.h"
+#include <media/dvbdev.h>
+#include <media/dvb_frontend.h>
#include "dst_ca.h"
#include "dst_common.h"
@@ -57,20 +45,6 @@ static unsigned int verbose = 5;
module_param(verbose, int, 0644);
MODULE_PARM_DESC(verbose, "verbose startup messages, default is 1 (yes)");
-/* Need some more work */
-static int ca_set_slot_descr(void)
-{
- /* We could make this more graceful ? */
- return -EOPNOTSUPP;
-}
-
-/* Need some more work */
-static int ca_set_pid(void)
-{
- /* We could make this more graceful ? */
- return -EOPNOTSUPP;
-}
-
static void put_command_and_length(u8 *data, int command, int length)
{
data[0] = (command >> 16) & 0xff;
@@ -144,7 +118,7 @@ static int dst_put_ci(struct dst_state *state, u8 *data, int len, u8 *ca_string,
}
if(dst_ca_comm_err == RETRIES)
- return -1;
+ return -EIO;
return 0;
}
@@ -159,7 +133,7 @@ static int ca_get_app_info(struct dst_state *state)
put_checksum(&command[0], command[0]);
if ((dst_put_ci(state, command, sizeof(command), state->messages, GET_REPLY)) < 0) {
dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
- return -1;
+ return -EIO;
}
dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
dprintk(verbose, DST_CA_INFO, 1, " ================================ CI Module Application Info ======================================");
@@ -198,7 +172,7 @@ static int ca_get_ca_info(struct dst_state *state)
put_checksum(&slot_command[0], slot_command[0]);
if ((dst_put_ci(state, slot_command, sizeof (slot_command), state->messages, GET_REPLY)) < 0) {
dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
- return -1;
+ return -EIO;
}
dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
@@ -242,7 +216,7 @@ static int ca_get_slot_caps(struct dst_state *state, struct ca_caps *p_ca_caps,
put_checksum(&slot_command[0], slot_command[0]);
if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_cap, GET_REPLY)) < 0) {
dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
- return -1;
+ return -EIO;
}
dprintk(verbose, DST_CA_NOTICE, 1, " -->dst_put_ci SUCCESS !");
@@ -282,7 +256,7 @@ static int ca_get_slot_info(struct dst_state *state, struct ca_slot_info *p_ca_s
put_checksum(&slot_command[0], 7);
if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_info, GET_REPLY)) < 0) {
dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
- return -1;
+ return -EIO;
}
dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
@@ -354,7 +328,7 @@ static int handle_dst_tag(struct dst_state *state, struct ca_msg *p_ca_message,
} else {
if (length > 247) {
dprintk(verbose, DST_CA_ERROR, 1, " Message too long ! *** Bailing Out *** !");
- return -1;
+ return -EIO;
}
hw_buffer->msg[0] = (length & 0xff) + 7;
hw_buffer->msg[1] = 0x40;
@@ -380,7 +354,7 @@ static int write_to_8820(struct dst_state *state, struct ca_msg *hw_buffer, u8 l
dprintk(verbose, DST_CA_ERROR, 1, " DST-CI Command failed.");
dprintk(verbose, DST_CA_NOTICE, 1, " Resetting DST.");
rdc_reset_state(state);
- return -1;
+ return -EIO;
}
dprintk(verbose, DST_CA_NOTICE, 1, " DST-CI Command success.");
@@ -453,7 +427,7 @@ static int dst_check_ca_pmt(struct dst_state *state, struct ca_msg *p_ca_message
if (ca_pmt_reply_test) {
if ((ca_set_pmt(state, p_ca_message, hw_buffer, 1, GET_REPLY)) < 0) {
dprintk(verbose, DST_CA_ERROR, 1, " ca_set_pmt.. failed !");
- return -1;
+ return -EIO;
}
/* Process CA PMT Reply */
@@ -464,7 +438,7 @@ static int dst_check_ca_pmt(struct dst_state *state, struct ca_msg *p_ca_message
if (!ca_pmt_reply_test) {
if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, NO_REPLY)) < 0) {
dprintk(verbose, DST_CA_ERROR, 1, " ca_set_pmt.. failed !");
- return -1;
+ return -EIO;
}
dprintk(verbose, DST_CA_NOTICE, 1, " ca_set_pmt.. success !");
/* put a dummy message */
@@ -560,7 +534,7 @@ static long dst_ca_ioctl(struct file *file, unsigned int cmd, unsigned long ioct
mutex_lock(&dst_ca_mutex);
dvbdev = file->private_data;
- state = (struct dst_state *)dvbdev->priv;
+ state = dvbdev->priv;
p_ca_message = kmalloc(sizeof (struct ca_msg), GFP_KERNEL);
p_ca_slot_info = kmalloc(sizeof (struct ca_slot_info), GFP_KERNEL);
p_ca_caps = kmalloc(sizeof (struct ca_caps), GFP_KERNEL);
@@ -573,17 +547,18 @@ static long dst_ca_ioctl(struct file *file, unsigned int cmd, unsigned long ioct
switch (cmd) {
case CA_SEND_MSG:
dprintk(verbose, DST_CA_INFO, 1, " Sending message");
- if ((ca_send_message(state, p_ca_message, arg)) < 0) {
+ result = ca_send_message(state, p_ca_message, arg);
+
+ if (result < 0) {
dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SEND_MSG Failed !");
- result = -1;
goto free_mem_and_exit;
}
break;
case CA_GET_MSG:
dprintk(verbose, DST_CA_INFO, 1, " Getting message");
- if ((ca_get_message(state, p_ca_message, arg)) < 0) {
+ result = ca_get_message(state, p_ca_message, arg);
+ if (result < 0) {
dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_MSG Failed !");
- result = -1;
goto free_mem_and_exit;
}
dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_MSG Success !");
@@ -595,7 +570,8 @@ static long dst_ca_ioctl(struct file *file, unsigned int cmd, unsigned long ioct
break;
case CA_GET_SLOT_INFO:
dprintk(verbose, DST_CA_INFO, 1, " Getting Slot info");
- if ((ca_get_slot_info(state, p_ca_slot_info, arg)) < 0) {
+ result = ca_get_slot_info(state, p_ca_slot_info, arg);
+ if (result < 0) {
dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_SLOT_INFO Failed !");
result = -1;
goto free_mem_and_exit;
@@ -604,40 +580,22 @@ static long dst_ca_ioctl(struct file *file, unsigned int cmd, unsigned long ioct
break;
case CA_GET_CAP:
dprintk(verbose, DST_CA_INFO, 1, " Getting Slot capabilities");
- if ((ca_get_slot_caps(state, p_ca_caps, arg)) < 0) {
+ result = ca_get_slot_caps(state, p_ca_caps, arg);
+ if (result < 0) {
dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_CAP Failed !");
- result = -1;
goto free_mem_and_exit;
}
dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_CAP Success !");
break;
case CA_GET_DESCR_INFO:
dprintk(verbose, DST_CA_INFO, 1, " Getting descrambler description");
- if ((ca_get_slot_descr(state, p_ca_message, arg)) < 0) {
+ result = ca_get_slot_descr(state, p_ca_message, arg);
+ if (result < 0) {
dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_DESCR_INFO Failed !");
- result = -1;
goto free_mem_and_exit;
}
dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_DESCR_INFO Success !");
break;
- case CA_SET_DESCR:
- dprintk(verbose, DST_CA_INFO, 1, " Setting descrambler");
- if ((ca_set_slot_descr()) < 0) {
- dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SET_DESCR Failed !");
- result = -1;
- goto free_mem_and_exit;
- }
- dprintk(verbose, DST_CA_INFO, 1, " -->CA_SET_DESCR Success !");
- break;
- case CA_SET_PID:
- dprintk(verbose, DST_CA_INFO, 1, " Setting PID");
- if ((ca_set_pid()) < 0) {
- dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SET_PID Failed !");
- result = -1;
- goto free_mem_and_exit;
- }
- dprintk(verbose, DST_CA_INFO, 1, " -->CA_SET_PID Success !");
- break;
default:
result = -EOPNOTSUPP;
}
@@ -710,7 +668,7 @@ struct dvb_device *dst_ca_attach(struct dst_state *dst, struct dvb_adapter *dvb_
return NULL;
}
-EXPORT_SYMBOL(dst_ca_attach);
+EXPORT_SYMBOL_GPL(dst_ca_attach);
MODULE_DESCRIPTION("DST DVB-S/T/C Combo CA driver");
MODULE_AUTHOR("Manu Abraham");
generated by cgit (git 2.34.1) at 2025-12-27 18:44:19 +0000