Commit | Line | Data |
---|---|---|
c942fddf | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
265a6510 ST |
2 | /* |
3 | * Driver for the Auvitek USB bridge | |
4 | * | |
6d897616 | 5 | * Copyright (c) 2008 Steven Toth <stoth@linuxtv.org> |
265a6510 ST |
6 | */ |
7 | ||
83afb32a | 8 | #include "au0828.h" |
f90c5d79 | 9 | #include "au8522.h" |
83afb32a | 10 | |
265a6510 | 11 | #include <linux/module.h> |
5a0e3ad6 | 12 | #include <linux/slab.h> |
265a6510 ST |
13 | #include <linux/videodev2.h> |
14 | #include <media/v4l2-common.h> | |
15 | #include <linux/mutex.h> | |
16 | ||
188d2d55 MCC |
17 | /* Due to enum tuner_pad_index */ |
18 | #include <media/tuner.h> | |
19 | ||
bc3c613c ST |
20 | /* |
21 | * 1 = General debug messages | |
22 | * 2 = USB handling | |
23 | * 4 = I2C related | |
24 | * 8 = Bridge related | |
2fcfd317 | 25 | * 16 = IR related |
bc3c613c | 26 | */ |
b33d24c4 AB |
27 | int au0828_debug; |
28 | module_param_named(debug, au0828_debug, int, 0644); | |
2fcfd317 MCC |
29 | MODULE_PARM_DESC(debug, |
30 | "set debug bitmask: 1=general, 2=USB, 4=I2C, 8=bridge, 16=IR"); | |
265a6510 | 31 | |
d6a9a430 DH |
32 | static unsigned int disable_usb_speed_check; |
33 | module_param(disable_usb_speed_check, int, 0444); | |
34 | MODULE_PARM_DESC(disable_usb_speed_check, | |
35 | "override min bandwidth requirement of 480M bps"); | |
36 | ||
265a6510 ST |
37 | #define _AU0828_BULKPIPE 0x03 |
38 | #define _BULKPIPESIZE 0xffff | |
39 | ||
40 | static int send_control_msg(struct au0828_dev *dev, u16 request, u32 value, | |
8ff63de6 | 41 | u16 index); |
265a6510 ST |
42 | static int recv_control_msg(struct au0828_dev *dev, u16 request, u32 value, |
43 | u16 index, unsigned char *cp, u16 size); | |
44 | ||
45 | /* USB Direction */ | |
46 | #define CMD_REQUEST_IN 0x00 | |
47 | #define CMD_REQUEST_OUT 0x01 | |
48 | ||
49 | u32 au0828_readreg(struct au0828_dev *dev, u16 reg) | |
50 | { | |
77fc2863 DH |
51 | u8 result = 0; |
52 | ||
53 | recv_control_msg(dev, CMD_REQUEST_IN, 0, reg, &result, 1); | |
54 | dprintk(8, "%s(0x%04x) = 0x%02x\n", __func__, reg, result); | |
55 | ||
56 | return result; | |
265a6510 ST |
57 | } |
58 | ||
59 | u32 au0828_writereg(struct au0828_dev *dev, u16 reg, u32 val) | |
60 | { | |
b80f770a | 61 | dprintk(8, "%s(0x%04x, 0x%02x)\n", __func__, reg, val); |
8ff63de6 | 62 | return send_control_msg(dev, CMD_REQUEST_OUT, val, reg); |
265a6510 ST |
63 | } |
64 | ||
265a6510 | 65 | static int send_control_msg(struct au0828_dev *dev, u16 request, u32 value, |
8ff63de6 | 66 | u16 index) |
265a6510 ST |
67 | { |
68 | int status = -ENODEV; | |
8ff63de6 | 69 | |
265a6510 ST |
70 | if (dev->usbdev) { |
71 | ||
72 | /* cp must be memory that has been allocated by kmalloc */ | |
73 | status = usb_control_msg(dev->usbdev, | |
74 | usb_sndctrlpipe(dev->usbdev, 0), | |
75 | request, | |
a8eb912c ST |
76 | USB_DIR_OUT | USB_TYPE_VENDOR | |
77 | USB_RECIP_DEVICE, | |
8ff63de6 | 78 | value, index, NULL, 0, 1000); |
265a6510 ST |
79 | |
80 | status = min(status, 0); | |
81 | ||
82 | if (status < 0) { | |
83afb32a | 83 | pr_err("%s() Failed sending control message, error %d.\n", |
f07e8e4b | 84 | __func__, status); |
265a6510 ST |
85 | } |
86 | ||
87 | } | |
8ff63de6 | 88 | |
265a6510 ST |
89 | return status; |
90 | } | |
91 | ||
92 | static int recv_control_msg(struct au0828_dev *dev, u16 request, u32 value, | |
93 | u16 index, unsigned char *cp, u16 size) | |
94 | { | |
95 | int status = -ENODEV; | |
96 | mutex_lock(&dev->mutex); | |
97 | if (dev->usbdev) { | |
265a6510 ST |
98 | status = usb_control_msg(dev->usbdev, |
99 | usb_rcvctrlpipe(dev->usbdev, 0), | |
100 | request, | |
101 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
102 | value, index, | |
77fc2863 | 103 | dev->ctrlmsg, size, 1000); |
265a6510 ST |
104 | |
105 | status = min(status, 0); | |
106 | ||
107 | if (status < 0) { | |
83afb32a | 108 | pr_err("%s() Failed receiving control message, error %d.\n", |
f07e8e4b | 109 | __func__, status); |
77fc2863 DH |
110 | } |
111 | ||
112 | /* the host controller requires heap allocated memory, which | |
113 | is why we didn't just pass "cp" into usb_control_msg */ | |
114 | memcpy(cp, dev->ctrlmsg, size); | |
265a6510 ST |
115 | } |
116 | mutex_unlock(&dev->mutex); | |
117 | return status; | |
118 | } | |
a9c36aad | 119 | |
bc5ccdbc MCC |
120 | #ifdef CONFIG_MEDIA_CONTROLLER |
121 | static void au0828_media_graph_notify(struct media_entity *new, | |
122 | void *notify_data); | |
123 | #endif | |
124 | ||
bed69196 RLLC |
125 | static void au0828_unregister_media_device(struct au0828_dev *dev) |
126 | { | |
bed69196 | 127 | #ifdef CONFIG_MEDIA_CONTROLLER |
bc5ccdbc MCC |
128 | struct media_device *mdev = dev->media_dev; |
129 | struct media_entity_notify *notify, *nextp; | |
130 | ||
a087ce70 | 131 | if (!mdev || !media_devnode_is_registered(mdev->devnode)) |
bc5ccdbc MCC |
132 | return; |
133 | ||
134 | /* Remove au0828 entity_notify callbacks */ | |
135 | list_for_each_entry_safe(notify, nextp, &mdev->entity_notify, list) { | |
136 | if (notify->notify != au0828_media_graph_notify) | |
137 | continue; | |
138 | media_device_unregister_entity_notify(mdev, notify); | |
bed69196 | 139 | } |
bc5ccdbc MCC |
140 | |
141 | /* clear enable_source, disable_source */ | |
90cd366b | 142 | mutex_lock(&mdev->graph_mutex); |
bc5ccdbc MCC |
143 | dev->media_dev->source_priv = NULL; |
144 | dev->media_dev->enable_source = NULL; | |
145 | dev->media_dev->disable_source = NULL; | |
90cd366b | 146 | mutex_unlock(&mdev->graph_mutex); |
bc5ccdbc | 147 | |
812658d8 | 148 | media_device_delete(dev->media_dev, KBUILD_MODNAME, THIS_MODULE); |
bc5ccdbc | 149 | dev->media_dev = NULL; |
bed69196 RLLC |
150 | #endif |
151 | } | |
152 | ||
7b606ffd | 153 | void au0828_usb_release(struct au0828_dev *dev) |
265a6510 | 154 | { |
bed69196 RLLC |
155 | au0828_unregister_media_device(dev); |
156 | ||
265a6510 ST |
157 | /* I2C */ |
158 | au0828_i2c_unregister(dev); | |
159 | ||
823beb7e HV |
160 | kfree(dev); |
161 | } | |
162 | ||
823beb7e HV |
163 | static void au0828_usb_disconnect(struct usb_interface *interface) |
164 | { | |
165 | struct au0828_dev *dev = usb_get_intfdata(interface); | |
166 | ||
167 | dprintk(1, "%s()\n", __func__); | |
168 | ||
eb336eab SK |
169 | /* there is a small window after disconnect, before |
170 | dev->usbdev is NULL, for poll (e.g: IR) try to access | |
171 | the device and fill the dmesg with error messages. | |
172 | Set the status so poll routines can check and avoid | |
173 | access after disconnect. | |
174 | */ | |
e8e3039f | 175 | set_bit(DEV_DISCONNECTED, &dev->dev_state); |
eb336eab | 176 | |
2fcfd317 | 177 | au0828_rc_unregister(dev); |
823beb7e HV |
178 | /* Digital TV */ |
179 | au0828_dvb_unregister(dev); | |
265a6510 | 180 | |
823beb7e | 181 | usb_set_intfdata(interface, NULL); |
265a6510 ST |
182 | mutex_lock(&dev->mutex); |
183 | dev->usbdev = NULL; | |
184 | mutex_unlock(&dev->mutex); | |
7b606ffd | 185 | if (au0828_analog_unregister(dev)) { |
7e9a8ad5 MCC |
186 | /* |
187 | * No need to call au0828_usb_release() if V4L2 is enabled, | |
188 | * as this is already called via au0828_usb_v4l2_release() | |
189 | */ | |
823beb7e HV |
190 | return; |
191 | } | |
823beb7e | 192 | au0828_usb_release(dev); |
265a6510 ST |
193 | } |
194 | ||
9f806795 MCC |
195 | static int au0828_media_device_init(struct au0828_dev *dev, |
196 | struct usb_device *udev) | |
bed69196 RLLC |
197 | { |
198 | #ifdef CONFIG_MEDIA_CONTROLLER | |
199 | struct media_device *mdev; | |
bed69196 | 200 | |
812658d8 | 201 | mdev = media_device_usb_allocate(udev, KBUILD_MODNAME, THIS_MODULE); |
67873d4e MCC |
202 | if (!mdev) |
203 | return -ENOMEM; | |
bed69196 RLLC |
204 | |
205 | dev->media_dev = mdev; | |
206 | #endif | |
9f806795 | 207 | return 0; |
bed69196 RLLC |
208 | } |
209 | ||
0a82edd0 | 210 | #ifdef CONFIG_MEDIA_CONTROLLER |
f90c5d79 SK |
211 | static void au0828_media_graph_notify(struct media_entity *new, |
212 | void *notify_data) | |
213 | { | |
f90c5d79 SK |
214 | struct au0828_dev *dev = (struct au0828_dev *) notify_data; |
215 | int ret; | |
9096cae1 | 216 | struct media_entity *entity, *mixer = NULL, *decoder = NULL; |
f90c5d79 | 217 | |
9096cae1 SK |
218 | if (!new) { |
219 | /* | |
220 | * Called during au0828 probe time to connect | |
3e4d8f48 | 221 | * entities that were created prior to registering |
9096cae1 SK |
222 | * the notify handler. Find mixer and decoder. |
223 | */ | |
224 | media_device_for_each_entity(entity, dev->media_dev) { | |
225 | if (entity->function == MEDIA_ENT_F_AUDIO_MIXER) | |
226 | mixer = entity; | |
227 | else if (entity->function == MEDIA_ENT_F_ATV_DECODER) | |
228 | decoder = entity; | |
229 | } | |
230 | goto create_link; | |
231 | } | |
f90c5d79 SK |
232 | |
233 | switch (new->function) { | |
234 | case MEDIA_ENT_F_AUDIO_MIXER: | |
9096cae1 SK |
235 | mixer = new; |
236 | if (dev->decoder) | |
237 | decoder = dev->decoder; | |
238 | break; | |
239 | case MEDIA_ENT_F_ATV_DECODER: | |
240 | /* In case, Mixer is added first, find mixer and create link */ | |
241 | media_device_for_each_entity(entity, dev->media_dev) { | |
242 | if (entity->function == MEDIA_ENT_F_AUDIO_MIXER) | |
243 | mixer = entity; | |
244 | } | |
245 | decoder = new; | |
246 | break; | |
247 | default: | |
248 | break; | |
249 | } | |
250 | ||
251 | create_link: | |
252 | if (decoder && mixer) { | |
5e68d8e2 MCC |
253 | ret = media_get_pad_index(decoder, false, |
254 | PAD_SIGNAL_AUDIO); | |
255 | if (ret >= 0) | |
256 | ret = media_create_pad_link(decoder, ret, | |
257 | mixer, 0, | |
258 | MEDIA_LNK_FL_ENABLED); | |
259 | if (ret < 0) | |
f90c5d79 | 260 | dev_err(&dev->usbdev->dev, |
9096cae1 | 261 | "Mixer Pad Link Create Error: %d\n", ret); |
f90c5d79 | 262 | } |
f90c5d79 SK |
263 | } |
264 | ||
383b0e5b SK |
265 | static bool au0828_is_link_shareable(struct media_entity *owner, |
266 | struct media_entity *entity) | |
267 | { | |
268 | bool shareable = false; | |
269 | ||
270 | /* Tuner link can be shared by audio, video, and VBI */ | |
271 | switch (owner->function) { | |
272 | case MEDIA_ENT_F_IO_V4L: | |
273 | case MEDIA_ENT_F_AUDIO_CAPTURE: | |
274 | case MEDIA_ENT_F_IO_VBI: | |
275 | if (entity->function == MEDIA_ENT_F_IO_V4L || | |
276 | entity->function == MEDIA_ENT_F_AUDIO_CAPTURE || | |
277 | entity->function == MEDIA_ENT_F_IO_VBI) | |
278 | shareable = true; | |
279 | break; | |
280 | case MEDIA_ENT_F_DTV_DEMOD: | |
281 | default: | |
282 | break; | |
283 | } | |
284 | return shareable; | |
285 | } | |
286 | ||
90cd366b | 287 | /* Callers should hold graph_mutex */ |
c94903f1 SK |
288 | static int au0828_enable_source(struct media_entity *entity, |
289 | struct media_pipeline *pipe) | |
290 | { | |
c94903f1 SK |
291 | struct media_entity *source, *find_source; |
292 | struct media_entity *sink; | |
293 | struct media_link *link, *found_link = NULL; | |
294 | int ret = 0; | |
295 | struct media_device *mdev = entity->graph_obj.mdev; | |
296 | struct au0828_dev *dev; | |
297 | ||
298 | if (!mdev) | |
299 | return -ENODEV; | |
300 | ||
c94903f1 SK |
301 | dev = mdev->source_priv; |
302 | ||
303 | /* | |
304 | * For Audio and V4L2 entity, find the link to which decoder | |
305 | * is the sink. Look for an active link between decoder and | |
306 | * source (tuner/s-video/Composite), if one exists, nothing | |
307 | * to do. If not, look for any active links between source | |
308 | * and any other entity. If one exists, source is busy. If | |
309 | * source is free, setup link and start pipeline from source. | |
310 | * For DVB FE entity, the source for the link is the tuner. | |
311 | * Check if tuner is available and setup link and start | |
312 | * pipeline. | |
313 | */ | |
314 | if (entity->function == MEDIA_ENT_F_DTV_DEMOD) { | |
315 | sink = entity; | |
316 | find_source = dev->tuner; | |
317 | } else { | |
318 | /* Analog isn't configured or register failed */ | |
319 | if (!dev->decoder) { | |
320 | ret = -ENODEV; | |
321 | goto end; | |
322 | } | |
323 | ||
324 | sink = dev->decoder; | |
325 | ||
326 | /* | |
327 | * Default input is tuner and default input_type | |
328 | * is AU0828_VMUX_TELEVISION. | |
383b0e5b | 329 | * |
c94903f1 SK |
330 | * There is a problem when s_input is called to |
331 | * change the default input. s_input will try to | |
332 | * enable_source before attempting to change the | |
333 | * input on the device, and will end up enabling | |
334 | * default source which is tuner. | |
335 | * | |
383b0e5b SK |
336 | * Additional logic is necessary in au0828 to detect |
337 | * that the input has changed and enable the right | |
338 | * source. au0828 handles this case in its s_input. | |
339 | * It will disable the old source and enable the new | |
340 | * source. | |
341 | * | |
c94903f1 | 342 | */ |
c94903f1 SK |
343 | if (dev->input_type == AU0828_VMUX_TELEVISION) |
344 | find_source = dev->tuner; | |
345 | else if (dev->input_type == AU0828_VMUX_SVIDEO || | |
346 | dev->input_type == AU0828_VMUX_COMPOSITE) | |
347 | find_source = &dev->input_ent[dev->input_type]; | |
348 | else { | |
349 | /* unknown input - let user select input */ | |
350 | ret = 0; | |
351 | goto end; | |
352 | } | |
353 | } | |
354 | ||
383b0e5b | 355 | /* Is there an active link between sink and source */ |
c94903f1 | 356 | if (dev->active_link) { |
383b0e5b SK |
357 | if (dev->active_link_owner == entity) { |
358 | /* This check is necessary to handle multiple | |
359 | * enable_source calls from v4l_ioctls during | |
360 | * the course of video/vbi application run-time. | |
c94903f1 | 361 | */ |
383b0e5b SK |
362 | pr_debug("%s already owns the tuner\n", entity->name); |
363 | ret = 0; | |
364 | goto end; | |
365 | } else if (au0828_is_link_shareable(dev->active_link_owner, | |
366 | entity)) { | |
367 | /* Either ALSA or Video own tuner. Sink is the same | |
368 | * for both. Allow sharing the active link between | |
369 | * their common source (tuner) and sink (decoder). | |
370 | * Starting pipeline between sharing entity and sink | |
371 | * will fail with pipe mismatch, while owner has an | |
372 | * active pipeline. Switch pipeline ownership from | |
373 | * user to owner when owner disables the source. | |
374 | */ | |
375 | dev->active_link_shared = true; | |
376 | /* save the user info to use from disable */ | |
377 | dev->active_link_user = entity; | |
378 | dev->active_link_user_pipe = pipe; | |
379 | pr_debug("%s owns the tuner %s can share!\n", | |
380 | dev->active_link_owner->name, | |
381 | entity->name); | |
c94903f1 SK |
382 | ret = 0; |
383 | goto end; | |
384 | } else { | |
385 | ret = -EBUSY; | |
386 | goto end; | |
387 | } | |
388 | } | |
389 | ||
390 | list_for_each_entry(link, &sink->links, list) { | |
391 | /* Check sink, and source */ | |
392 | if (link->sink->entity == sink && | |
393 | link->source->entity == find_source) { | |
394 | found_link = link; | |
395 | break; | |
396 | } | |
397 | } | |
398 | ||
399 | if (!found_link) { | |
400 | ret = -ENODEV; | |
401 | goto end; | |
402 | } | |
403 | ||
404 | /* activate link between source and sink and start pipeline */ | |
405 | source = found_link->source->entity; | |
406 | ret = __media_entity_setup_link(found_link, MEDIA_LNK_FL_ENABLED); | |
407 | if (ret) { | |
383b0e5b | 408 | pr_err("Activate link from %s->%s. Error %d\n", |
c94903f1 SK |
409 | source->name, sink->name, ret); |
410 | goto end; | |
411 | } | |
412 | ||
20b85227 | 413 | ret = __media_pipeline_start(entity, pipe); |
c94903f1 SK |
414 | if (ret) { |
415 | pr_err("Start Pipeline: %s->%s Error %d\n", | |
416 | source->name, entity->name, ret); | |
417 | ret = __media_entity_setup_link(found_link, 0); | |
383b0e5b SK |
418 | if (ret) |
419 | pr_err("Deactivate link Error %d\n", ret); | |
c94903f1 SK |
420 | goto end; |
421 | } | |
383b0e5b SK |
422 | |
423 | /* save link state to allow audio and video share the link | |
424 | * and not disable the link while the other is using it. | |
425 | * active_link_owner is used to deactivate the link. | |
c94903f1 SK |
426 | */ |
427 | dev->active_link = found_link; | |
428 | dev->active_link_owner = entity; | |
429 | dev->active_source = source; | |
430 | dev->active_sink = sink; | |
431 | ||
383b0e5b | 432 | pr_info("Enabled Source: %s->%s->%s Ret %d\n", |
c94903f1 SK |
433 | dev->active_source->name, dev->active_sink->name, |
434 | dev->active_link_owner->name, ret); | |
435 | end: | |
383b0e5b SK |
436 | pr_debug("%s end: ent:%s fnc:%d ret %d\n", |
437 | __func__, entity->name, entity->function, ret); | |
c94903f1 | 438 | return ret; |
c94903f1 SK |
439 | } |
440 | ||
90cd366b | 441 | /* Callers should hold graph_mutex */ |
c94903f1 SK |
442 | static void au0828_disable_source(struct media_entity *entity) |
443 | { | |
c94903f1 SK |
444 | int ret = 0; |
445 | struct media_device *mdev = entity->graph_obj.mdev; | |
446 | struct au0828_dev *dev; | |
447 | ||
448 | if (!mdev) | |
449 | return; | |
450 | ||
c94903f1 SK |
451 | dev = mdev->source_priv; |
452 | ||
90cd366b SK |
453 | if (!dev->active_link) |
454 | return; | |
c94903f1 | 455 | |
383b0e5b SK |
456 | /* link is active - stop pipeline from source |
457 | * (tuner/s-video/Composite) to the entity | |
458 | * When DVB/s-video/Composite owns tuner, it won't be in | |
459 | * shared state. | |
460 | */ | |
c94903f1 SK |
461 | if (dev->active_link->sink->entity == dev->active_sink && |
462 | dev->active_link->source->entity == dev->active_source) { | |
463 | /* | |
383b0e5b SK |
464 | * Prevent video from deactivating link when audio |
465 | * has active pipeline and vice versa. In addition | |
466 | * handle the case when more than one video/vbi | |
467 | * application is sharing the link. | |
c94903f1 | 468 | */ |
383b0e5b SK |
469 | bool owner_is_audio = false; |
470 | ||
471 | if (dev->active_link_owner->function == | |
472 | MEDIA_ENT_F_AUDIO_CAPTURE) | |
473 | owner_is_audio = true; | |
474 | ||
475 | if (dev->active_link_shared) { | |
476 | pr_debug("Shared link owner %s user %s %d\n", | |
477 | dev->active_link_owner->name, | |
478 | entity->name, dev->users); | |
479 | ||
480 | /* Handle video device users > 1 | |
481 | * When audio owns the shared link with | |
482 | * more than one video users, avoid | |
483 | * disabling the source and/or switching | |
484 | * the owner until the last disable_source | |
485 | * call from video _close(). Use dev->users to | |
486 | * determine when to switch/disable. | |
487 | */ | |
488 | if (dev->active_link_owner != entity) { | |
489 | /* video device has users > 1 */ | |
490 | if (owner_is_audio && dev->users > 1) | |
491 | return; | |
492 | ||
493 | dev->active_link_user = NULL; | |
494 | dev->active_link_user_pipe = NULL; | |
495 | dev->active_link_shared = false; | |
496 | return; | |
497 | } | |
498 | ||
499 | /* video owns the link and has users > 1 */ | |
500 | if (!owner_is_audio && dev->users > 1) | |
501 | return; | |
502 | ||
503 | /* stop pipeline */ | |
504 | __media_pipeline_stop(dev->active_link_owner); | |
505 | pr_debug("Pipeline stop for %s\n", | |
506 | dev->active_link_owner->name); | |
507 | ||
508 | ret = __media_pipeline_start( | |
509 | dev->active_link_user, | |
510 | dev->active_link_user_pipe); | |
511 | if (ret) { | |
512 | pr_err("Start Pipeline: %s->%s %d\n", | |
513 | dev->active_source->name, | |
514 | dev->active_link_user->name, | |
515 | ret); | |
516 | goto deactivate_link; | |
517 | } | |
518 | /* link user is now the owner */ | |
519 | dev->active_link_owner = dev->active_link_user; | |
520 | dev->active_link_user = NULL; | |
521 | dev->active_link_user_pipe = NULL; | |
522 | dev->active_link_shared = false; | |
523 | ||
524 | pr_debug("Pipeline started for %s\n", | |
525 | dev->active_link_owner->name); | |
526 | return; | |
527 | } else if (!owner_is_audio && dev->users > 1) | |
528 | /* video/vbi owns the link and has users > 1 */ | |
529 | return; | |
530 | ||
c94903f1 | 531 | if (dev->active_link_owner != entity) |
90cd366b | 532 | return; |
383b0e5b SK |
533 | |
534 | /* stop pipeline */ | |
535 | __media_pipeline_stop(dev->active_link_owner); | |
536 | pr_debug("Pipeline stop for %s\n", | |
537 | dev->active_link_owner->name); | |
538 | ||
539 | deactivate_link: | |
c94903f1 SK |
540 | ret = __media_entity_setup_link(dev->active_link, 0); |
541 | if (ret) | |
542 | pr_err("Deactivate link Error %d\n", ret); | |
543 | ||
383b0e5b | 544 | pr_info("Disabled Source: %s->%s->%s Ret %d\n", |
c94903f1 SK |
545 | dev->active_source->name, dev->active_sink->name, |
546 | dev->active_link_owner->name, ret); | |
547 | ||
548 | dev->active_link = NULL; | |
549 | dev->active_link_owner = NULL; | |
550 | dev->active_source = NULL; | |
551 | dev->active_sink = NULL; | |
383b0e5b SK |
552 | dev->active_link_shared = false; |
553 | dev->active_link_user = NULL; | |
c94903f1 | 554 | } |
c94903f1 | 555 | } |
0a82edd0 | 556 | #endif |
c94903f1 | 557 | |
7b12adf6 SK |
558 | static int au0828_media_device_register(struct au0828_dev *dev, |
559 | struct usb_device *udev) | |
560 | { | |
561 | #ifdef CONFIG_MEDIA_CONTROLLER | |
562 | int ret; | |
2e208c64 MCC |
563 | struct media_entity *entity, *demod = NULL; |
564 | struct media_link *link; | |
7b12adf6 | 565 | |
f90c5d79 SK |
566 | if (!dev->media_dev) |
567 | return 0; | |
568 | ||
a087ce70 | 569 | if (!media_devnode_is_registered(dev->media_dev->devnode)) { |
7b12adf6 SK |
570 | |
571 | /* register media device */ | |
572 | ret = media_device_register(dev->media_dev); | |
573 | if (ret) { | |
812658d8 SK |
574 | media_device_delete(dev->media_dev, KBUILD_MODNAME, |
575 | THIS_MODULE); | |
576 | dev->media_dev = NULL; | |
7b12adf6 SK |
577 | dev_err(&udev->dev, |
578 | "Media Device Register Error: %d\n", ret); | |
579 | return ret; | |
580 | } | |
9096cae1 SK |
581 | } else { |
582 | /* | |
583 | * Call au0828_media_graph_notify() to connect | |
584 | * audio graph to our graph. In this case, audio | |
585 | * driver registered the device and there is no | |
586 | * entity_notify to be called when new entities | |
587 | * are added. Invoke it now. | |
588 | */ | |
589 | au0828_media_graph_notify(NULL, (void *) dev); | |
7b12adf6 | 590 | } |
840f5b05 SK |
591 | |
592 | /* | |
2e208c64 MCC |
593 | * Find tuner, decoder and demod. |
594 | * | |
595 | * The tuner and decoder should be cached, as they'll be used by | |
596 | * au0828_enable_source. | |
597 | * | |
598 | * It also needs to disable the link between tuner and | |
599 | * decoder/demod, to avoid disable step when tuner is requested | |
600 | * by video or audio. Note that this step can't be done until dvb | |
601 | * graph is created during dvb register. | |
840f5b05 SK |
602 | */ |
603 | media_device_for_each_entity(entity, dev->media_dev) { | |
2e208c64 MCC |
604 | switch (entity->function) { |
605 | case MEDIA_ENT_F_TUNER: | |
606 | dev->tuner = entity; | |
607 | break; | |
608 | case MEDIA_ENT_F_ATV_DECODER: | |
609 | dev->decoder = entity; | |
610 | break; | |
611 | case MEDIA_ENT_F_DTV_DEMOD: | |
840f5b05 | 612 | demod = entity; |
2e208c64 MCC |
613 | break; |
614 | } | |
840f5b05 | 615 | } |
840f5b05 | 616 | |
2e208c64 MCC |
617 | /* Disable link between tuner->demod and/or tuner->decoder */ |
618 | if (dev->tuner) { | |
619 | list_for_each_entry(link, &dev->tuner->links, list) { | |
620 | if (demod && link->sink->entity == demod) | |
621 | media_entity_setup_link(link, 0); | |
622 | if (dev->decoder && link->sink->entity == dev->decoder) | |
840f5b05 | 623 | media_entity_setup_link(link, 0); |
840f5b05 SK |
624 | } |
625 | } | |
626 | ||
f90c5d79 SK |
627 | /* register entity_notify callback */ |
628 | dev->entity_notify.notify_data = (void *) dev; | |
629 | dev->entity_notify.notify = (void *) au0828_media_graph_notify; | |
630 | ret = media_device_register_entity_notify(dev->media_dev, | |
631 | &dev->entity_notify); | |
632 | if (ret) { | |
633 | dev_err(&udev->dev, | |
634 | "Media Device register entity_notify Error: %d\n", | |
635 | ret); | |
636 | return ret; | |
637 | } | |
c94903f1 | 638 | /* set enable_source */ |
90cd366b | 639 | mutex_lock(&dev->media_dev->graph_mutex); |
c94903f1 SK |
640 | dev->media_dev->source_priv = (void *) dev; |
641 | dev->media_dev->enable_source = au0828_enable_source; | |
642 | dev->media_dev->disable_source = au0828_disable_source; | |
90cd366b | 643 | mutex_unlock(&dev->media_dev->graph_mutex); |
7b12adf6 SK |
644 | #endif |
645 | return 0; | |
646 | } | |
bed69196 | 647 | |
18d73c58 | 648 | static int au0828_usb_probe(struct usb_interface *interface, |
265a6510 ST |
649 | const struct usb_device_id *id) |
650 | { | |
8a4e7866 | 651 | int ifnum; |
f251b3e7 TM |
652 | int retval = 0; |
653 | ||
265a6510 ST |
654 | struct au0828_dev *dev; |
655 | struct usb_device *usbdev = interface_to_usbdev(interface); | |
656 | ||
657 | ifnum = interface->altsetting->desc.bInterfaceNumber; | |
658 | ||
659 | if (ifnum != 0) | |
660 | return -ENODEV; | |
661 | ||
a9c36aad | 662 | dprintk(1, "%s() vendor id 0x%x device id 0x%x ifnum:%d\n", __func__, |
265a6510 ST |
663 | le16_to_cpu(usbdev->descriptor.idVendor), |
664 | le16_to_cpu(usbdev->descriptor.idProduct), | |
665 | ifnum); | |
666 | ||
ee3436b8 DH |
667 | /* |
668 | * Make sure we have 480 Mbps of bandwidth, otherwise things like | |
669 | * video stream wouldn't likely work, since 12 Mbps is generally | |
670 | * not enough even for most Digital TV streams. | |
671 | */ | |
d6a9a430 | 672 | if (usbdev->speed != USB_SPEED_HIGH && disable_usb_speed_check == 0) { |
83afb32a MCC |
673 | pr_err("au0828: Device initialization failed.\n"); |
674 | pr_err("au0828: Device must be connected to a high-speed USB 2.0 port.\n"); | |
ee3436b8 DH |
675 | return -ENODEV; |
676 | } | |
677 | ||
265a6510 ST |
678 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
679 | if (dev == NULL) { | |
83afb32a | 680 | pr_err("%s() Unable to allocate memory\n", __func__); |
265a6510 ST |
681 | return -ENOMEM; |
682 | } | |
683 | ||
549ee4df DH |
684 | mutex_init(&dev->lock); |
685 | mutex_lock(&dev->lock); | |
265a6510 ST |
686 | mutex_init(&dev->mutex); |
687 | mutex_init(&dev->dvb.lock); | |
688 | dev->usbdev = usbdev; | |
f1add5b5 | 689 | dev->boardnr = id->driver_info; |
e42c8c6e RLLC |
690 | dev->board = au0828_boards[dev->boardnr]; |
691 | ||
9832e155 | 692 | /* Initialize the media controller */ |
9f806795 MCC |
693 | retval = au0828_media_device_init(dev, usbdev); |
694 | if (retval) { | |
695 | pr_err("%s() au0828_media_device_init failed\n", | |
696 | __func__); | |
697 | mutex_unlock(&dev->lock); | |
698 | kfree(dev); | |
699 | return retval; | |
700 | } | |
265a6510 | 701 | |
7b606ffd | 702 | retval = au0828_v4l2_device_register(interface, dev); |
b14667f3 | 703 | if (retval) { |
7b606ffd | 704 | au0828_usb_v4l2_media_release(dev); |
549ee4df | 705 | mutex_unlock(&dev->lock); |
b14667f3 | 706 | kfree(dev); |
e8c26f45 | 707 | return retval; |
b14667f3 DH |
708 | } |
709 | ||
265a6510 ST |
710 | /* Power Up the bridge */ |
711 | au0828_write(dev, REG_600, 1 << 4); | |
712 | ||
713 | /* Bring up the GPIO's and supporting devices */ | |
714 | au0828_gpio_setup(dev); | |
715 | ||
716 | /* I2C */ | |
717 | au0828_i2c_register(dev); | |
718 | ||
28930fa9 ST |
719 | /* Setup */ |
720 | au0828_card_setup(dev); | |
721 | ||
8b2f0795 | 722 | /* Analog TV */ |
7b606ffd MCC |
723 | retval = au0828_analog_register(dev, interface); |
724 | if (retval) { | |
f347596f | 725 | pr_err("%s() au0828_analog_register failed to register on V4L2\n", |
7b606ffd | 726 | __func__); |
9793e1d2 | 727 | mutex_unlock(&dev->lock); |
7b606ffd | 728 | goto done; |
82e92f4c | 729 | } |
8b2f0795 | 730 | |
265a6510 | 731 | /* Digital TV */ |
f251b3e7 TM |
732 | retval = au0828_dvb_register(dev); |
733 | if (retval) | |
f347596f | 734 | pr_err("%s() au0828_dvb_register failed\n", |
f251b3e7 TM |
735 | __func__); |
736 | ||
2fcfd317 MCC |
737 | /* Remote controller */ |
738 | au0828_rc_register(dev); | |
265a6510 | 739 | |
2fcfd317 MCC |
740 | /* |
741 | * Store the pointer to the au0828_dev so it can be accessed in | |
742 | * au0828_usb_disconnect | |
743 | */ | |
fe78a49c DH |
744 | usb_set_intfdata(interface, dev); |
745 | ||
83afb32a | 746 | pr_info("Registered device AU0828 [%s]\n", |
f1add5b5 | 747 | dev->board.name == NULL ? "Unset" : dev->board.name); |
265a6510 | 748 | |
549ee4df DH |
749 | mutex_unlock(&dev->lock); |
750 | ||
7b12adf6 | 751 | retval = au0828_media_device_register(dev, usbdev); |
9832e155 JMC |
752 | |
753 | done: | |
754 | if (retval < 0) | |
755 | au0828_usb_disconnect(interface); | |
756 | ||
f251b3e7 | 757 | return retval; |
265a6510 ST |
758 | } |
759 | ||
aaeac199 MCC |
760 | static int au0828_suspend(struct usb_interface *interface, |
761 | pm_message_t message) | |
762 | { | |
763 | struct au0828_dev *dev = usb_get_intfdata(interface); | |
764 | ||
765 | if (!dev) | |
766 | return 0; | |
767 | ||
81187240 MCC |
768 | pr_info("Suspend\n"); |
769 | ||
aaeac199 | 770 | au0828_rc_suspend(dev); |
1a1ba95e | 771 | au0828_v4l2_suspend(dev); |
b799de75 | 772 | au0828_dvb_suspend(dev); |
aaeac199 MCC |
773 | |
774 | /* FIXME: should suspend also ATV/DTV */ | |
775 | ||
776 | return 0; | |
777 | } | |
778 | ||
779 | static int au0828_resume(struct usb_interface *interface) | |
780 | { | |
781 | struct au0828_dev *dev = usb_get_intfdata(interface); | |
782 | if (!dev) | |
783 | return 0; | |
784 | ||
81187240 MCC |
785 | pr_info("Resume\n"); |
786 | ||
fa500461 MCC |
787 | /* Power Up the bridge */ |
788 | au0828_write(dev, REG_600, 1 << 4); | |
789 | ||
790 | /* Bring up the GPIO's and supporting devices */ | |
791 | au0828_gpio_setup(dev); | |
792 | ||
aaeac199 | 793 | au0828_rc_resume(dev); |
1a1ba95e | 794 | au0828_v4l2_resume(dev); |
b799de75 | 795 | au0828_dvb_resume(dev); |
aaeac199 MCC |
796 | |
797 | /* FIXME: should resume also ATV/DTV */ | |
798 | ||
799 | return 0; | |
800 | } | |
801 | ||
265a6510 | 802 | static struct usb_driver au0828_usb_driver = { |
83afb32a | 803 | .name = KBUILD_MODNAME, |
265a6510 ST |
804 | .probe = au0828_usb_probe, |
805 | .disconnect = au0828_usb_disconnect, | |
806 | .id_table = au0828_usb_id_table, | |
aaeac199 MCC |
807 | .suspend = au0828_suspend, |
808 | .resume = au0828_resume, | |
809 | .reset_resume = au0828_resume, | |
265a6510 ST |
810 | }; |
811 | ||
812 | static int __init au0828_init(void) | |
813 | { | |
814 | int ret; | |
815 | ||
b33d24c4 | 816 | if (au0828_debug & 1) |
83afb32a | 817 | pr_info("%s() Debugging is enabled\n", __func__); |
bc3c613c | 818 | |
b33d24c4 | 819 | if (au0828_debug & 2) |
83afb32a | 820 | pr_info("%s() USB Debugging is enabled\n", __func__); |
bc3c613c | 821 | |
b33d24c4 | 822 | if (au0828_debug & 4) |
83afb32a | 823 | pr_info("%s() I2C Debugging is enabled\n", __func__); |
bc3c613c | 824 | |
b33d24c4 | 825 | if (au0828_debug & 8) |
83afb32a | 826 | pr_info("%s() Bridge Debugging is enabled\n", |
f07e8e4b | 827 | __func__); |
bc3c613c | 828 | |
2fcfd317 | 829 | if (au0828_debug & 16) |
83afb32a | 830 | pr_info("%s() IR Debugging is enabled\n", |
2fcfd317 MCC |
831 | __func__); |
832 | ||
83afb32a | 833 | pr_info("au0828 driver loaded\n"); |
265a6510 ST |
834 | |
835 | ret = usb_register(&au0828_usb_driver); | |
836 | if (ret) | |
83afb32a | 837 | pr_err("usb_register failed, error = %d\n", ret); |
265a6510 ST |
838 | |
839 | return ret; | |
840 | } | |
841 | ||
842 | static void __exit au0828_exit(void) | |
843 | { | |
844 | usb_deregister(&au0828_usb_driver); | |
845 | } | |
846 | ||
847 | module_init(au0828_init); | |
848 | module_exit(au0828_exit); | |
849 | ||
850 | MODULE_DESCRIPTION("Driver for Auvitek AU0828 based products"); | |
6d897616 | 851 | MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>"); |
265a6510 | 852 | MODULE_LICENSE("GPL"); |
2fcfd317 | 853 | MODULE_VERSION("0.0.3"); |