1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
|
/*
* FireDTV driver (formerly known as FireSAT)
*
* Copyright (C) 2004 Andreas Monitzer <andy@monitzer.com>
* Copyright (C) 2008 Henrik Kurelid <henrik@kurelid.se>
*
* 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.
*/
#include <linux/dvb/ca.h>
#include <linux/fs.h>
#include <linux/module.h>
#include <dvbdev.h>
#include "avc_api.h"
#include "firesat.h"
#include "firesat-ci.h"
static int firesat_ca_ready(ANTENNA_INPUT_INFO *info)
{
return info->CaInitializationStatus == 1 &&
info->CaErrorFlag == 0 &&
info->CaDvbFlag == 1 &&
info->CaModulePresentStatus == 1;
}
static int firesat_get_ca_flags(ANTENNA_INPUT_INFO *info)
{
int flags = 0;
if (info->CaModulePresentStatus == 1)
flags |= CA_CI_MODULE_PRESENT;
if (info->CaInitializationStatus == 1 &&
info->CaErrorFlag == 0 &&
info->CaDvbFlag == 1)
flags |= CA_CI_MODULE_READY;
return flags;
}
static int firesat_ca_reset(struct firesat *firesat)
{
return avc_ca_reset(firesat) ? -EFAULT : 0;
}
static int firesat_ca_get_caps(void *arg)
{
struct ca_caps *cap = arg;
cap->slot_num = 1;
cap->slot_type = CA_CI;
cap->descr_num = 1;
cap->descr_type = CA_ECD;
return 0;
}
static int firesat_ca_get_slot_info(struct firesat *firesat, void *arg)
{
ANTENNA_INPUT_INFO info;
struct ca_slot_info *slot = arg;
if (avc_tuner_status(firesat, &info))
return -EFAULT;
if (slot->num != 0)
return -EFAULT;
slot->type = CA_CI;
slot->flags = firesat_get_ca_flags(&info);
return 0;
}
static int firesat_ca_app_info(struct firesat *firesat, void *arg)
{
struct ca_msg *reply = arg;
return
avc_ca_app_info(firesat, reply->msg, &reply->length) ? -EFAULT : 0;
}
static int firesat_ca_info(struct firesat *firesat, void *arg)
{
struct ca_msg *reply = arg;
return avc_ca_info(firesat, reply->msg, &reply->length) ? -EFAULT : 0;
}
static int firesat_ca_get_mmi(struct firesat *firesat, void *arg)
{
struct ca_msg *reply = arg;
return
avc_ca_get_mmi(firesat, reply->msg, &reply->length) ? -EFAULT : 0;
}
static int firesat_ca_get_msg(struct firesat *firesat, void *arg)
{
ANTENNA_INPUT_INFO info;
int err;
switch (firesat->ca_last_command) {
case TAG_APP_INFO_ENQUIRY:
err = firesat_ca_app_info(firesat, arg);
break;
case TAG_CA_INFO_ENQUIRY:
err = firesat_ca_info(firesat, arg);
break;
default:
if (avc_tuner_status(firesat, &info))
err = -EFAULT;
else if (info.CaMmi == 1)
err = firesat_ca_get_mmi(firesat, arg);
else {
printk(KERN_INFO "%s: Unhandled message 0x%08X\n",
__func__, firesat->ca_last_command);
err = -EFAULT;
}
}
firesat->ca_last_command = 0;
return err;
}
static int firesat_ca_pmt(struct firesat *firesat, void *arg)
{
struct ca_msg *msg = arg;
int data_pos;
if (msg->msg[3] & 0x80)
data_pos = (msg->msg[4] && 0x7F) + 4;
else
data_pos = 4;
return avc_ca_pmt(firesat, &msg->msg[data_pos],
msg->length - data_pos) ? -EFAULT : 0;
}
static int firesat_ca_send_msg(struct firesat *firesat, void *arg)
{
struct ca_msg *msg = arg;
int err;
/* Do we need a semaphore for this? */
firesat->ca_last_command =
(msg->msg[0] << 16) + (msg->msg[1] << 8) + msg->msg[2];
switch (firesat->ca_last_command) {
case TAG_CA_PMT:
err = firesat_ca_pmt(firesat, arg);
break;
case TAG_APP_INFO_ENQUIRY:
/* handled in ca_get_msg */
err = 0;
break;
case TAG_CA_INFO_ENQUIRY:
/* handled in ca_get_msg */
err = 0;
break;
case TAG_ENTER_MENU:
err = avc_ca_enter_menu(firesat);
break;
default:
printk(KERN_ERR "%s: Unhandled unknown message 0x%08X\n",
__func__, firesat->ca_last_command);
err = -EFAULT;
}
return err;
}
static int firesat_ca_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, void *arg)
{
struct dvb_device *dvbdev = file->private_data;
struct firesat *firesat = dvbdev->priv;
ANTENNA_INPUT_INFO info;
int err;
switch(cmd) {
case CA_RESET:
err = firesat_ca_reset(firesat);
break;
case CA_GET_CAP:
err = firesat_ca_get_caps(arg);
break;
case CA_GET_SLOT_INFO:
err = firesat_ca_get_slot_info(firesat, arg);
break;
case CA_GET_MSG:
err = firesat_ca_get_msg(firesat, arg);
break;
case CA_SEND_MSG:
err = firesat_ca_send_msg(firesat, arg);
break;
default:
printk(KERN_INFO "%s: Unhandled ioctl, command: %u\n",__func__,
cmd);
err = -EOPNOTSUPP;
}
/* FIXME Is this necessary? */
avc_tuner_status(firesat, &info);
return err;
}
static unsigned int firesat_ca_io_poll(struct file *file, poll_table *wait)
{
return POLLIN;
}
static struct file_operations firesat_ca_fops = {
.owner = THIS_MODULE,
.ioctl = dvb_generic_ioctl,
.open = dvb_generic_open,
.release = dvb_generic_release,
.poll = firesat_ca_io_poll,
};
static struct dvb_device firesat_ca = {
.users = 1,
.readers = 1,
.writers = 1,
.fops = &firesat_ca_fops,
.kernel_ioctl = firesat_ca_ioctl,
};
int firesat_ca_register(struct firesat *firesat)
{
ANTENNA_INPUT_INFO info;
int err;
if (avc_tuner_status(firesat, &info))
return -EINVAL;
if (!firesat_ca_ready(&info))
return -EFAULT;
err = dvb_register_device(&firesat->adapter, &firesat->cadev,
&firesat_ca, firesat, DVB_DEVICE_CA);
if (info.CaApplicationInfo == 0)
printk(KERN_ERR "%s: CaApplicationInfo is not set.\n",
__func__);
if (info.CaDateTimeRequest == 1)
avc_ca_get_time_date(firesat, &firesat->ca_time_interval);
return err;
}
void firesat_ca_release(struct firesat *firesat)
{
if (firesat->cadev)
dvb_unregister_device(firesat->cadev);
}
|
