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10#include "dvb-usb-common.h"
11#include <media/media-device.h>
12
13
14static int dvb_usb_ctrl_feed(struct dvb_demux_feed *dvbdmxfeed, int onoff)
15{
16 struct dvb_usb_adapter *adap = dvbdmxfeed->demux->priv;
17 int newfeedcount, ret;
18
19 if (adap == NULL)
20 return -ENODEV;
21
22 if ((adap->active_fe < 0) ||
23 (adap->active_fe >= adap->num_frontends_initialized)) {
24 return -EINVAL;
25 }
26
27 newfeedcount = adap->feedcount + (onoff ? 1 : -1);
28
29
30 if (newfeedcount == 0) {
31 deb_ts("stop feeding\n");
32 usb_urb_kill(&adap->fe_adap[adap->active_fe].stream);
33
34 if (adap->props.fe[adap->active_fe].streaming_ctrl != NULL) {
35 ret = adap->props.fe[adap->active_fe].streaming_ctrl(adap, 0);
36 if (ret < 0) {
37 err("error while stopping stream.");
38 return ret;
39 }
40 }
41 }
42
43 adap->feedcount = newfeedcount;
44
45
46 deb_ts("setting pid (%s): %5d %04x at index %d '%s'\n",
47 adap->fe_adap[adap->active_fe].pid_filtering ?
48 "yes" : "no", dvbdmxfeed->pid, dvbdmxfeed->pid,
49 dvbdmxfeed->index, onoff ? "on" : "off");
50 if (adap->props.fe[adap->active_fe].caps & DVB_USB_ADAP_HAS_PID_FILTER &&
51 adap->fe_adap[adap->active_fe].pid_filtering &&
52 adap->props.fe[adap->active_fe].pid_filter != NULL)
53 adap->props.fe[adap->active_fe].pid_filter(adap, dvbdmxfeed->index, dvbdmxfeed->pid, onoff);
54
55
56
57
58 if (adap->feedcount == onoff && adap->feedcount > 0) {
59 deb_ts("submitting all URBs\n");
60 usb_urb_submit(&adap->fe_adap[adap->active_fe].stream);
61
62 deb_ts("controlling pid parser\n");
63 if (adap->props.fe[adap->active_fe].caps & DVB_USB_ADAP_HAS_PID_FILTER &&
64 adap->props.fe[adap->active_fe].caps &
65 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF &&
66 adap->props.fe[adap->active_fe].pid_filter_ctrl != NULL) {
67 ret = adap->props.fe[adap->active_fe].pid_filter_ctrl(adap,
68 adap->fe_adap[adap->active_fe].pid_filtering);
69 if (ret < 0) {
70 err("could not handle pid_parser");
71 return ret;
72 }
73 }
74 deb_ts("start feeding\n");
75 if (adap->props.fe[adap->active_fe].streaming_ctrl != NULL) {
76 ret = adap->props.fe[adap->active_fe].streaming_ctrl(adap, 1);
77 if (ret < 0) {
78 err("error while enabling fifo.");
79 return ret;
80 }
81 }
82
83 }
84 return 0;
85}
86
87static int dvb_usb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
88{
89 deb_ts("start pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid,
90 dvbdmxfeed->type);
91 return dvb_usb_ctrl_feed(dvbdmxfeed, 1);
92}
93
94static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
95{
96 deb_ts("stop pid: 0x%04x, feedtype: %d\n", dvbdmxfeed->pid, dvbdmxfeed->type);
97 return dvb_usb_ctrl_feed(dvbdmxfeed, 0);
98}
99
100static int dvb_usb_media_device_init(struct dvb_usb_adapter *adap)
101{
102#ifdef CONFIG_MEDIA_CONTROLLER_DVB
103 struct media_device *mdev;
104 struct dvb_usb_device *d = adap->dev;
105 struct usb_device *udev = d->udev;
106
107 mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
108 if (!mdev)
109 return -ENOMEM;
110
111 media_device_usb_init(mdev, udev, d->desc->name);
112
113 dvb_register_media_controller(&adap->dvb_adap, mdev);
114
115 dev_info(&d->udev->dev, "media controller created\n");
116#endif
117 return 0;
118}
119
120static int dvb_usb_media_device_register(struct dvb_usb_adapter *adap)
121{
122#ifdef CONFIG_MEDIA_CONTROLLER_DVB
123 return media_device_register(adap->dvb_adap.mdev);
124#else
125 return 0;
126#endif
127}
128
129static void dvb_usb_media_device_unregister(struct dvb_usb_adapter *adap)
130{
131#ifdef CONFIG_MEDIA_CONTROLLER_DVB
132 if (!adap->dvb_adap.mdev)
133 return;
134
135 mutex_lock(&adap->dvb_adap.mdev_lock);
136
137 media_device_unregister(adap->dvb_adap.mdev);
138 media_device_cleanup(adap->dvb_adap.mdev);
139 kfree(adap->dvb_adap.mdev);
140 adap->dvb_adap.mdev = NULL;
141
142 mutex_unlock(&adap->dvb_adap.mdev_lock);
143#endif
144}
145
146int dvb_usb_adapter_dvb_init(struct dvb_usb_adapter *adap, short *adapter_nums)
147{
148 int i;
149 int ret = dvb_register_adapter(&adap->dvb_adap, adap->dev->desc->name,
150 adap->dev->owner, &adap->dev->udev->dev,
151 adapter_nums);
152
153 if (ret < 0) {
154 deb_info("dvb_register_adapter failed: error %d", ret);
155 goto err;
156 }
157 adap->dvb_adap.priv = adap;
158
159 ret = dvb_usb_media_device_init(adap);
160 if (ret < 0) {
161 deb_info("dvb_usb_media_device_init failed: error %d", ret);
162 goto err_mc;
163 }
164
165 if (adap->dev->props.read_mac_address) {
166 if (adap->dev->props.read_mac_address(adap->dev, adap->dvb_adap.proposed_mac) == 0)
167 info("MAC address: %pM", adap->dvb_adap.proposed_mac);
168 else
169 err("MAC address reading failed.");
170 }
171
172
173 adap->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING;
174 adap->demux.priv = adap;
175
176 adap->demux.filternum = 0;
177 for (i = 0; i < adap->props.num_frontends; i++) {
178 if (adap->demux.filternum < adap->fe_adap[i].max_feed_count)
179 adap->demux.filternum = adap->fe_adap[i].max_feed_count;
180 }
181 adap->demux.feednum = adap->demux.filternum;
182 adap->demux.start_feed = dvb_usb_start_feed;
183 adap->demux.stop_feed = dvb_usb_stop_feed;
184 adap->demux.write_to_decoder = NULL;
185 if ((ret = dvb_dmx_init(&adap->demux)) < 0) {
186 err("dvb_dmx_init failed: error %d", ret);
187 goto err_dmx;
188 }
189
190 adap->dmxdev.filternum = adap->demux.filternum;
191 adap->dmxdev.demux = &adap->demux.dmx;
192 adap->dmxdev.capabilities = 0;
193 if ((ret = dvb_dmxdev_init(&adap->dmxdev, &adap->dvb_adap)) < 0) {
194 err("dvb_dmxdev_init failed: error %d", ret);
195 goto err_dmx_dev;
196 }
197
198 if ((ret = dvb_net_init(&adap->dvb_adap, &adap->dvb_net,
199 &adap->demux.dmx)) < 0) {
200 err("dvb_net_init failed: error %d", ret);
201 goto err_net_init;
202 }
203
204 adap->state |= DVB_USB_ADAP_STATE_DVB;
205 return 0;
206
207err_net_init:
208 dvb_dmxdev_release(&adap->dmxdev);
209err_dmx_dev:
210 dvb_dmx_release(&adap->demux);
211err_dmx:
212 dvb_usb_media_device_unregister(adap);
213err_mc:
214 dvb_unregister_adapter(&adap->dvb_adap);
215err:
216 return ret;
217}
218
219int dvb_usb_adapter_dvb_exit(struct dvb_usb_adapter *adap)
220{
221 if (adap->state & DVB_USB_ADAP_STATE_DVB) {
222 deb_info("unregistering DVB part\n");
223 dvb_net_release(&adap->dvb_net);
224 adap->demux.dmx.close(&adap->demux.dmx);
225 dvb_dmxdev_release(&adap->dmxdev);
226 dvb_dmx_release(&adap->demux);
227 dvb_usb_media_device_unregister(adap);
228 dvb_unregister_adapter(&adap->dvb_adap);
229 adap->state &= ~DVB_USB_ADAP_STATE_DVB;
230 }
231 return 0;
232}
233
234static int dvb_usb_set_active_fe(struct dvb_frontend *fe, int onoff)
235{
236 struct dvb_usb_adapter *adap = fe->dvb->priv;
237
238 int ret = (adap->props.frontend_ctrl) ?
239 adap->props.frontend_ctrl(fe, onoff) : 0;
240
241 if (ret < 0) {
242 err("frontend_ctrl request failed");
243 return ret;
244 }
245 if (onoff)
246 adap->active_fe = fe->id;
247
248 return 0;
249}
250
251static int dvb_usb_fe_wakeup(struct dvb_frontend *fe)
252{
253 struct dvb_usb_adapter *adap = fe->dvb->priv;
254
255 dvb_usb_device_power_ctrl(adap->dev, 1);
256
257 dvb_usb_set_active_fe(fe, 1);
258
259 if (adap->fe_adap[fe->id].fe_init)
260 adap->fe_adap[fe->id].fe_init(fe);
261
262 return 0;
263}
264
265static int dvb_usb_fe_sleep(struct dvb_frontend *fe)
266{
267 struct dvb_usb_adapter *adap = fe->dvb->priv;
268
269 if (adap->fe_adap[fe->id].fe_sleep)
270 adap->fe_adap[fe->id].fe_sleep(fe);
271
272 dvb_usb_set_active_fe(fe, 0);
273
274 return dvb_usb_device_power_ctrl(adap->dev, 0);
275}
276
277int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap)
278{
279 int ret, i;
280
281
282 for (i = 0; i < adap->props.num_frontends; i++) {
283
284 if (adap->props.fe[i].frontend_attach == NULL) {
285 err("strange: '%s' #%d,%d doesn't want to attach a frontend.",
286 adap->dev->desc->name, adap->id, i);
287
288 return 0;
289 }
290
291 ret = adap->props.fe[i].frontend_attach(adap);
292 if (ret || adap->fe_adap[i].fe == NULL) {
293
294 if (i == 0)
295 err("no frontend was attached by '%s'",
296 adap->dev->desc->name);
297
298 return 0;
299 }
300
301 adap->fe_adap[i].fe->id = i;
302
303
304 adap->fe_adap[i].fe_init = adap->fe_adap[i].fe->ops.init;
305 adap->fe_adap[i].fe->ops.init = dvb_usb_fe_wakeup;
306 adap->fe_adap[i].fe_sleep = adap->fe_adap[i].fe->ops.sleep;
307 adap->fe_adap[i].fe->ops.sleep = dvb_usb_fe_sleep;
308
309 if (dvb_register_frontend(&adap->dvb_adap, adap->fe_adap[i].fe)) {
310 err("Frontend %d registration failed.", i);
311 dvb_frontend_detach(adap->fe_adap[i].fe);
312 adap->fe_adap[i].fe = NULL;
313
314
315 if (i == 0)
316 return -ENODEV;
317 else
318 return 0;
319 }
320
321
322 if (adap->props.fe[i].tuner_attach != NULL)
323 adap->props.fe[i].tuner_attach(adap);
324
325 adap->num_frontends_initialized++;
326 }
327
328 ret = dvb_create_media_graph(&adap->dvb_adap, true);
329 if (ret)
330 return ret;
331
332 ret = dvb_usb_media_device_register(adap);
333
334 return ret;
335}
336
337int dvb_usb_adapter_frontend_exit(struct dvb_usb_adapter *adap)
338{
339 int i = adap->num_frontends_initialized - 1;
340
341
342 for (; i >= 0; i--) {
343 if (adap->fe_adap[i].fe != NULL) {
344 dvb_unregister_frontend(adap->fe_adap[i].fe);
345 dvb_frontend_detach(adap->fe_adap[i].fe);
346 }
347 }
348 adap->num_frontends_initialized = 0;
349
350 return 0;
351}
352
