1 /* dvb-usb-dvb.c is part of the DVB USB library.
2 *
3 * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de)
4 * see dvb-usb-init.c for copyright information.
5 *
6 * This file contains functions for initializing and handling the
7 * linux-dvb API.
8 */
9 #include "dvb-usb-common.h"
10
11 /* does the complete input transfer handling */
12 static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff)
13 {
14 struct dvb_usb_adapter *adap = dvbdmxfeed->demux->priv;
15 int newfeedcount,ret;
16
17 if (adap == NULL)
18 return -ENODEV;
19
20 newfeedcount = adap->feedcount + (onoff ? 1 : -1);
21
22 /* stop feed before setting a new pid if there will be no pid anymore */
23 if (newfeedcount == 0) {
24 deb_ts("stop feeding\n");
25 usb_urb_kill(&adap->stream);
26
27 if (adap->props.streaming_ctrl != NULL)
28 if ((ret = adap->props.streaming_ctrl(adap,0)))
29 err("error while stopping stream.");
30 }
31
32 adap->feedcount = newfeedcount;
33
34 /* activate the pid on the device specific pid_filter */
35 deb_ts("setting pid (%s): %5d %04x at index %d '%s'\n",adap->pid_filtering ?
36 "yes" : "no", dvbdmxfeed->pid,dvbdmxfeed->pid,dvbdmxfeed->index,onoff ?
37 "on" : "off");
38 if (adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER &&
39 adap->pid_filtering &&
40 adap->props.pid_filter != NULL)
41 adap->props.pid_filter(adap, dvbdmxfeed->index, dvbdmxfeed->pid,onoff);
42
43 /* start the feed if this was the first feed and there is still a feed
44 * for reception.
45 */
46 if (adap->feedcount == onoff && adap->feedcount > 0) {
47 deb_ts("submitting all URBs\n");
48 usb_urb_submit(&adap->stream);
49
50 deb_ts("controlling pid parser\n");
51 if (adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER &&
52 adap->props.caps & DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF &&
53 adap->props.pid_filter_ctrl != NULL)
54 if (adap->props.pid_filter_ctrl(adap,adap->pid_filtering) < 0)
55 err("could not handle pid_parser");
56
57 deb_ts("start feeding\n");
58 if (adap->props.streaming_ctrl != NULL)
59 if (adap->props.streaming_ctrl(adap,1)) {
60 err("error while enabling fifo.");
61 return -ENODEV;
62 }
63
64 }
65 return 0;
66 }
67
68 static int dvb_usb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
69 {
70 deb_ts("start pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid,dvbdmxfeed->type);
71 return dvb_usb_ctrl_feed(dvbdmxfeed,1);
72 }
73
74 static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
75 {
76 deb_ts("stop pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid, dvbdmxfeed->type);
77 return dvb_usb_ctrl_feed(dvbdmxfeed,0);
78 }
79
80 int dvb_usb_adapter_dvb_init(struct dvb_usb_adapter *adap)
81 {
82 int ret;
83
84 if ((ret = dvb_register_adapter(&adap->dvb_adap, adap->dev->desc->name,
85 adap->dev->owner, &adap->dev->udev->dev)) < 0) {
86 deb_info("dvb_register_adapter failed: error %d", ret);
87 goto err;
88 }
89 adap->dvb_adap.priv = adap;
90
91 if (adap->dev->props.read_mac_address) {
92 if (adap->dev->props.read_mac_address(adap->dev,adap->dvb_adap.proposed_mac) == 0)
93 info("MAC address: %02x:%02x:%02x:%02x:%02x:%02x",adap->dvb_adap.proposed_mac[0],
94 adap->dvb_adap.proposed_mac[1], adap->dvb_adap.proposed_mac[2],
95 adap->dvb_adap.proposed_mac[3], adap->dvb_adap.proposed_mac[4],
96 adap->dvb_adap.proposed_mac[5]);
97 else
98 err("MAC address reading failed.");
99 }
100
101
102 adap->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING;
103 adap->demux.priv = adap;
104
105 adap->demux.feednum = adap->demux.filternum = adap->max_feed_count;
106 adap->demux.start_feed = dvb_usb_start_feed;
107 adap->demux.stop_feed = dvb_usb_stop_feed;
108 adap->demux.write_to_decoder = NULL;
109 if ((ret = dvb_dmx_init(&adap->demux)) < 0) {
110 err("dvb_dmx_init failed: error %d",ret);
111 goto err_dmx;
112 }
113
114 adap->dmxdev.filternum = adap->demux.filternum;
115 adap->dmxdev.demux = &adap->demux.dmx;
116 adap->dmxdev.capabilities = 0;
117 if ((ret = dvb_dmxdev_init(&adap->dmxdev, &adap->dvb_adap)) < 0) {
118 err("dvb_dmxdev_init failed: error %d",ret);
119 goto err_dmx_dev;
120 }
121
122 dvb_net_init(&adap->dvb_adap, &adap->dvb_net, &adap->demux.dmx);
123
124 adap->state |= DVB_USB_ADAP_STATE_DVB;
125 return 0;
126
127 err_dmx_dev:
128 dvb_dmx_release(&adap->demux);
129 err_dmx:
130 dvb_unregister_adapter(&adap->dvb_adap);
131 err:
132 return ret;
133 }
134
135 int dvb_usb_adapter_dvb_exit(struct dvb_usb_adapter *adap)
136 {
137 if (adap->state & DVB_USB_ADAP_STATE_DVB) {
138 deb_info("unregistering DVB part\n");
139 dvb_net_release(&adap->dvb_net);
140 adap->demux.dmx.close(&adap->demux.dmx);
141 dvb_dmxdev_release(&adap->dmxdev);
142 dvb_dmx_release(&adap->demux);
143 dvb_unregister_adapter(&adap->dvb_adap);
144 adap->state &= ~DVB_USB_ADAP_STATE_DVB;
145 }
146 return 0;
147 }
148
149 static int dvb_usb_fe_wakeup(struct dvb_frontend *fe)
150 {
151 struct dvb_usb_adapter *adap = fe->dvb->priv;
152
153 dvb_usb_device_power_ctrl(adap->dev, 1);
154
155 if (adap->fe_init)
156 adap->fe_init(fe);
157
158 return 0;
159 }
160
161 static int dvb_usb_fe_sleep(struct dvb_frontend *fe)
162 {
163 struct dvb_usb_adapter *adap = fe->dvb->priv;
164
165 if (adap->fe_sleep)
166 adap->fe_sleep(fe);
167
168 return dvb_usb_device_power_ctrl(adap->dev, 0);
169 }
170
171 int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap)
172 {
173 if (adap->props.frontend_attach == NULL) {
174 err("strange: '%s' #%d doesn't want to attach a frontend.",adap->dev->desc->name, adap->id);
175 return 0;
176 }
177
178 /* re-assign sleep and wakeup functions */
179 if (adap->props.frontend_attach(adap) == 0 && adap->fe != NULL) {
180 adap->fe_init = adap->fe->ops.init; adap->fe->ops.init = dvb_usb_fe_wakeup;
181 adap->fe_sleep = adap->fe->ops.sleep; adap->fe->ops.sleep = dvb_usb_fe_sleep;
182
183 if (dvb_register_frontend(&adap->dvb_adap, adap->fe)) {
184 err("Frontend registration failed.");
185 dvb_frontend_detach(adap->fe);
186 adap->fe = NULL;
187 return -ENODEV;
188 }
189
190 /* only attach the tuner if the demod is there */
191 if (adap->props.tuner_attach != NULL)
192 adap->props.tuner_attach(adap);
193 } else
194 err("no frontend was attached by '%s'",adap->dev->desc->name);
195
196 return 0;
197 }
198
199 int dvb_usb_adapter_frontend_exit(struct dvb_usb_adapter *adap)
200 {
201 if (adap->fe != NULL) {
202 dvb_unregister_frontend(adap->fe);
203 dvb_frontend_detach(adap->fe);
204 }
205 return 0;
206 }
207
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