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
|
/* dvb-usb-dvb.c is part of the DVB USB library.
*
* Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de)
* see dvb-usb-init.c for copyright information.
*
* This file contains functions for initializing and handling the
* linux-dvb API.
*/
#include "dvb-usb-common.h"
static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff)
{
struct dvb_usb_device *d = dvbdmxfeed->demux->priv;
int newfeedcount,ret;
if (d == NULL)
return -ENODEV;
newfeedcount = d->feedcount + (onoff ? 1 : -1);
/*
* stop feed before setting a new pid if there will be no pid anymore
*/
if (newfeedcount == 0) {
deb_ts("stop feeding\n");
dvb_usb_urb_kill(d);
if (d->props.streaming_ctrl != NULL)
if ((ret = d->props.streaming_ctrl(d,0)))
err("error while stopping stream.");
}
d->feedcount = newfeedcount;
/* activate the pid on the device specific pid_filter */
deb_ts("setting pid: %5d %04x at index %d '%s'\n",dvbdmxfeed->pid,dvbdmxfeed->pid,dvbdmxfeed->index,onoff ? "on" : "off");
if (d->props.caps & DVB_USB_HAS_PID_FILTER &&
d->pid_filtering &&
d->props.pid_filter != NULL)
d->props.pid_filter(d,dvbdmxfeed->index,dvbdmxfeed->pid,onoff);
/* start the feed if this was the first feed and there is still a feed
* for reception.
*/
if (d->feedcount == onoff && d->feedcount > 0) {
deb_ts("submitting all URBs\n");
dvb_usb_urb_submit(d);
deb_ts("controlling pid parser\n");
if (d->props.caps & DVB_USB_HAS_PID_FILTER &&
d->props.caps & DVB_USB_PID_FILTER_CAN_BE_TURNED_OFF &&
d->props.pid_filter_ctrl != NULL)
if (d->props.pid_filter_ctrl(d,d->pid_filtering) < 0)
err("could not handle pid_parser");
deb_ts("start feeding\n");
if (d->props.streaming_ctrl != NULL)
if (d->props.streaming_ctrl(d,1)) {
err("error while enabling fifo.");
return -ENODEV;
}
}
return 0;
}
static int dvb_usb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
{
deb_ts("start pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid,dvbdmxfeed->type);
return dvb_usb_ctrl_feed(dvbdmxfeed,1);
}
static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
{
deb_ts("stop pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid, dvbdmxfeed->type);
return dvb_usb_ctrl_feed(dvbdmxfeed,0);
}
int dvb_usb_dvb_init(struct dvb_usb_device *d)
{
int ret;
if ((ret = dvb_register_adapter(&d->dvb_adap, d->desc->name,
d->owner, &d->udev->dev)) < 0) {
deb_info("dvb_register_adapter failed: error %d", ret);
goto err;
}
d->dvb_adap.priv = d;
if (d->props.read_mac_address) {
if (d->props.read_mac_address(d,d->dvb_adap.proposed_mac) == 0)
info("MAC address: %02x:%02x:%02x:%02x:%02x:%02x",d->dvb_adap.proposed_mac[0],
d->dvb_adap.proposed_mac[1],d->dvb_adap.proposed_mac[2],
d->dvb_adap.proposed_mac[3],d->dvb_adap.proposed_mac[4],
d->dvb_adap.proposed_mac[5]);
else
err("MAC address reading failed.");
}
d->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING;
d->demux.priv = d;
d->demux.feednum = d->demux.filternum = d->max_feed_count;
d->demux.start_feed = dvb_usb_start_feed;
d->demux.stop_feed = dvb_usb_stop_feed;
d->demux.write_to_decoder = NULL;
if ((ret = dvb_dmx_init(&d->demux)) < 0) {
err("dvb_dmx_init failed: error %d",ret);
goto err_dmx;
}
d->dmxdev.filternum = d->demux.filternum;
d->dmxdev.demux = &d->demux.dmx;
d->dmxdev.capabilities = 0;
if ((ret = dvb_dmxdev_init(&d->dmxdev, &d->dvb_adap)) < 0) {
err("dvb_dmxdev_init failed: error %d",ret);
goto err_dmx_dev;
}
dvb_net_init(&d->dvb_adap, &d->dvb_net, &d->demux.dmx);
d->state |= DVB_USB_STATE_DVB;
return 0;
err_dmx_dev:
dvb_dmx_release(&d->demux);
err_dmx:
dvb_unregister_adapter(&d->dvb_adap);
err:
return ret;
}
int dvb_usb_dvb_exit(struct dvb_usb_device *d)
{
if (d->state & DVB_USB_STATE_DVB) {
deb_info("unregistering DVB part\n");
dvb_net_release(&d->dvb_net);
d->demux.dmx.close(&d->demux.dmx);
dvb_dmxdev_release(&d->dmxdev);
dvb_dmx_release(&d->demux);
dvb_unregister_adapter(&d->dvb_adap);
d->state &= ~DVB_USB_STATE_DVB;
}
return 0;
}
static int dvb_usb_fe_wakeup(struct dvb_frontend *fe)
{
struct dvb_usb_device *d = fe->dvb->priv;
if (d->props.power_ctrl)
d->props.power_ctrl(d,1);
if (d->fe_init)
d->fe_init(fe);
return 0;
}
static int dvb_usb_fe_sleep(struct dvb_frontend *fe)
{
struct dvb_usb_device *d = fe->dvb->priv;
if (d->fe_sleep)
d->fe_sleep(fe);
if (d->props.power_ctrl)
d->props.power_ctrl(d,0);
return 0;
}
int dvb_usb_fe_init(struct dvb_usb_device* d)
{
if (d->props.frontend_attach == NULL) {
err("strange '%s' doesn't want to attach a frontend.",d->desc->name);
return 0;
}
d->props.frontend_attach(d);
/* re-assign sleep and wakeup functions */
if (d->fe != NULL) {
d->fe_init = d->fe->ops.init; d->fe->ops.init = dvb_usb_fe_wakeup;
d->fe_sleep = d->fe->ops.sleep; d->fe->ops.sleep = dvb_usb_fe_sleep;
if (dvb_register_frontend(&d->dvb_adap, d->fe)) {
err("Frontend registration failed.");
if (d->fe->ops.release)
d->fe->ops.release(d->fe);
d->fe = NULL;
return -ENODEV;
}
} else
err("no frontend was attached by '%s'",d->desc->name);
if (d->props.tuner_attach != NULL)
d->props.tuner_attach(d);
return 0;
}
int dvb_usb_fe_exit(struct dvb_usb_device *d)
{
if (d->fe != NULL)
dvb_unregister_frontend(d->fe);
return 0;
}
|
