Commit | Line | Data |
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11bd27b2 ST |
1 | /* |
2 | * Driver for the NXP SAA7164 PCIe bridge | |
3 | * | |
4 | * Copyright (c) 2010 Steven Toth <stoth@kernellabs.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | */ | |
21 | ||
22 | #include "saa7164.h" | |
23 | ||
24 | static struct saa7164_tvnorm saa7164_tvnorms[] = { | |
25 | { | |
26 | .name = "NTSC-M", | |
27 | .id = V4L2_STD_NTSC_M, | |
28 | }, { | |
29 | .name = "NTSC-JP", | |
30 | .id = V4L2_STD_NTSC_M_JP, | |
31 | } | |
32 | }; | |
33 | ||
34 | static const u32 saa7164_v4l2_ctrls[] = { | |
35 | 0 | |
36 | }; | |
37 | ||
38 | /* Take the encoder configuration from the port struct and | |
39 | * flush it to the hardware. | |
40 | */ | |
41 | static void saa7164_vbi_configure(struct saa7164_port *port) | |
42 | { | |
43 | struct saa7164_dev *dev = port->dev; | |
44 | dprintk(DBGLVL_VBI, "%s()\n", __func__); | |
45 | ||
46 | port->vbi_params.width = port->width; | |
47 | port->vbi_params.height = port->height; | |
48 | port->vbi_params.is_50hz = | |
49 | (port->encodernorm.id & V4L2_STD_625_50) != 0; | |
50 | ||
51 | /* Set up the DIF (enable it) for analog mode by default */ | |
52 | saa7164_api_initialize_dif(port); | |
53 | ||
bc250684 ST |
54 | /* Configure the correct video standard */ |
55 | #if 0 | |
56 | saa7164_api_configure_dif(port, port->encodernorm.id); | |
57 | #endif | |
11bd27b2 | 58 | |
bc250684 ST |
59 | #if 0 |
60 | /* Ensure the audio decoder is correct configured */ | |
61 | saa7164_api_set_audio_std(port); | |
62 | #endif | |
11bd27b2 ST |
63 | dprintk(DBGLVL_VBI, "%s() ends\n", __func__); |
64 | } | |
65 | ||
66 | static int saa7164_vbi_buffers_dealloc(struct saa7164_port *port) | |
67 | { | |
68 | struct list_head *c, *n, *p, *q, *l, *v; | |
69 | struct saa7164_dev *dev = port->dev; | |
70 | struct saa7164_buffer *buf; | |
71 | struct saa7164_user_buffer *ubuf; | |
72 | ||
73 | /* Remove any allocated buffers */ | |
74 | mutex_lock(&port->dmaqueue_lock); | |
75 | ||
76 | dprintk(DBGLVL_VBI, "%s(port=%d) dmaqueue\n", __func__, port->nr); | |
77 | list_for_each_safe(c, n, &port->dmaqueue.list) { | |
78 | buf = list_entry(c, struct saa7164_buffer, list); | |
79 | list_del(c); | |
80 | saa7164_buffer_dealloc(buf); | |
81 | } | |
82 | ||
83 | dprintk(DBGLVL_VBI, "%s(port=%d) used\n", __func__, port->nr); | |
84 | list_for_each_safe(p, q, &port->list_buf_used.list) { | |
85 | ubuf = list_entry(p, struct saa7164_user_buffer, list); | |
86 | list_del(p); | |
87 | saa7164_buffer_dealloc_user(ubuf); | |
88 | } | |
89 | ||
90 | dprintk(DBGLVL_VBI, "%s(port=%d) free\n", __func__, port->nr); | |
91 | list_for_each_safe(l, v, &port->list_buf_free.list) { | |
92 | ubuf = list_entry(l, struct saa7164_user_buffer, list); | |
93 | list_del(l); | |
94 | saa7164_buffer_dealloc_user(ubuf); | |
95 | } | |
96 | ||
97 | mutex_unlock(&port->dmaqueue_lock); | |
98 | dprintk(DBGLVL_VBI, "%s(port=%d) done\n", __func__, port->nr); | |
99 | ||
100 | return 0; | |
101 | } | |
102 | ||
103 | /* Dynamic buffer switch at vbi start time */ | |
104 | static int saa7164_vbi_buffers_alloc(struct saa7164_port *port) | |
105 | { | |
106 | struct saa7164_dev *dev = port->dev; | |
107 | struct saa7164_buffer *buf; | |
108 | struct saa7164_user_buffer *ubuf; | |
4d270cfb | 109 | struct tmHWStreamParameters *params = &port->hw_streamingparams; |
11bd27b2 ST |
110 | int result = -ENODEV, i; |
111 | int len = 0; | |
112 | ||
113 | dprintk(DBGLVL_VBI, "%s()\n", __func__); | |
114 | ||
115 | /* TODO: NTSC SPECIFIC */ | |
116 | /* Init and establish defaults */ | |
117 | params->samplesperline = 1440; | |
118 | params->numberoflines = 12; | |
119 | params->numberoflines = 18; | |
120 | params->pitch = 1600; | |
121 | params->pitch = 1440; | |
122 | params->numpagetables = 2 + | |
123 | ((params->numberoflines * params->pitch) / PAGE_SIZE); | |
124 | params->bitspersample = 8; | |
125 | params->linethreshold = 0; | |
61ca1500 PH |
126 | params->pagetablelistvirt = NULL; |
127 | params->pagetablelistphys = NULL; | |
11bd27b2 ST |
128 | params->numpagetableentries = port->hwcfg.buffercount; |
129 | ||
130 | /* Allocate the PCI resources, buffers (hard) */ | |
131 | for (i = 0; i < port->hwcfg.buffercount; i++) { | |
132 | buf = saa7164_buffer_alloc(port, | |
133 | params->numberoflines * | |
134 | params->pitch); | |
135 | ||
136 | if (!buf) { | |
137 | printk(KERN_ERR "%s() failed " | |
138 | "(errno = %d), unable to allocate buffer\n", | |
139 | __func__, result); | |
140 | result = -ENOMEM; | |
141 | goto failed; | |
142 | } else { | |
143 | ||
144 | mutex_lock(&port->dmaqueue_lock); | |
145 | list_add_tail(&buf->list, &port->dmaqueue.list); | |
146 | mutex_unlock(&port->dmaqueue_lock); | |
147 | ||
148 | } | |
149 | } | |
150 | ||
70f23fd6 | 151 | /* Allocate some kernel buffers for copying |
11bd27b2 ST |
152 | * to userpsace. |
153 | */ | |
154 | len = params->numberoflines * params->pitch; | |
155 | ||
156 | if (vbi_buffers < 16) | |
157 | vbi_buffers = 16; | |
158 | if (vbi_buffers > 512) | |
159 | vbi_buffers = 512; | |
160 | ||
161 | for (i = 0; i < vbi_buffers; i++) { | |
162 | ||
163 | ubuf = saa7164_buffer_alloc_user(dev, len); | |
164 | if (ubuf) { | |
165 | mutex_lock(&port->dmaqueue_lock); | |
166 | list_add_tail(&ubuf->list, &port->list_buf_free.list); | |
167 | mutex_unlock(&port->dmaqueue_lock); | |
168 | } | |
169 | ||
170 | } | |
171 | ||
172 | result = 0; | |
173 | ||
174 | failed: | |
175 | return result; | |
176 | } | |
177 | ||
178 | ||
179 | static int saa7164_vbi_initialize(struct saa7164_port *port) | |
180 | { | |
181 | saa7164_vbi_configure(port); | |
182 | return 0; | |
183 | } | |
184 | ||
185 | /* -- V4L2 --------------------------------------------------------- */ | |
314527ac | 186 | static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id id) |
11bd27b2 ST |
187 | { |
188 | struct saa7164_vbi_fh *fh = file->private_data; | |
189 | struct saa7164_port *port = fh->port; | |
190 | struct saa7164_dev *dev = port->dev; | |
191 | unsigned int i; | |
192 | ||
314527ac | 193 | dprintk(DBGLVL_VBI, "%s(id=0x%x)\n", __func__, (u32)id); |
11bd27b2 ST |
194 | |
195 | for (i = 0; i < ARRAY_SIZE(saa7164_tvnorms); i++) { | |
314527ac | 196 | if (id & saa7164_tvnorms[i].id) |
11bd27b2 ST |
197 | break; |
198 | } | |
199 | if (i == ARRAY_SIZE(saa7164_tvnorms)) | |
200 | return -EINVAL; | |
201 | ||
202 | port->encodernorm = saa7164_tvnorms[i]; | |
8d2d41e9 | 203 | port->std = id; |
11bd27b2 ST |
204 | |
205 | /* Update the audio decoder while is not running in | |
206 | * auto detect mode. | |
207 | */ | |
208 | saa7164_api_set_audio_std(port); | |
209 | ||
314527ac | 210 | dprintk(DBGLVL_VBI, "%s(id=0x%x) OK\n", __func__, (u32)id); |
11bd27b2 ST |
211 | |
212 | return 0; | |
213 | } | |
214 | ||
8d2d41e9 HV |
215 | static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id) |
216 | { | |
217 | struct saa7164_encoder_fh *fh = file->private_data; | |
218 | struct saa7164_port *port = fh->port; | |
219 | ||
220 | *id = port->std; | |
221 | return 0; | |
222 | } | |
223 | ||
11bd27b2 ST |
224 | static int vidioc_enum_input(struct file *file, void *priv, |
225 | struct v4l2_input *i) | |
226 | { | |
227 | int n; | |
228 | ||
229 | char *inputs[] = { "tuner", "composite", "svideo", "aux", | |
f89076c5 | 230 | "composite 2", "svideo 2", "aux 2" }; |
11bd27b2 ST |
231 | |
232 | if (i->index >= 7) | |
233 | return -EINVAL; | |
234 | ||
c7e242ba | 235 | strcpy(i->name, inputs[i->index]); |
11bd27b2 ST |
236 | |
237 | if (i->index == 0) | |
238 | i->type = V4L2_INPUT_TYPE_TUNER; | |
239 | else | |
240 | i->type = V4L2_INPUT_TYPE_CAMERA; | |
241 | ||
242 | for (n = 0; n < ARRAY_SIZE(saa7164_tvnorms); n++) | |
243 | i->std |= saa7164_tvnorms[n].id; | |
244 | ||
245 | return 0; | |
246 | } | |
247 | ||
248 | static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) | |
249 | { | |
250 | struct saa7164_vbi_fh *fh = file->private_data; | |
251 | struct saa7164_port *port = fh->port; | |
252 | struct saa7164_dev *dev = port->dev; | |
253 | ||
254 | if (saa7164_api_get_videomux(port) != SAA_OK) | |
255 | return -EIO; | |
256 | ||
257 | *i = (port->mux_input - 1); | |
258 | ||
259 | dprintk(DBGLVL_VBI, "%s() input=%d\n", __func__, *i); | |
260 | ||
261 | return 0; | |
262 | } | |
263 | ||
264 | static int vidioc_s_input(struct file *file, void *priv, unsigned int i) | |
265 | { | |
266 | struct saa7164_vbi_fh *fh = file->private_data; | |
267 | struct saa7164_port *port = fh->port; | |
268 | struct saa7164_dev *dev = port->dev; | |
269 | ||
270 | dprintk(DBGLVL_VBI, "%s() input=%d\n", __func__, i); | |
271 | ||
272 | if (i >= 7) | |
273 | return -EINVAL; | |
274 | ||
275 | port->mux_input = i + 1; | |
276 | ||
277 | if (saa7164_api_set_videomux(port) != SAA_OK) | |
278 | return -EIO; | |
279 | ||
280 | return 0; | |
281 | } | |
282 | ||
283 | static int vidioc_g_tuner(struct file *file, void *priv, | |
284 | struct v4l2_tuner *t) | |
285 | { | |
286 | struct saa7164_vbi_fh *fh = file->private_data; | |
287 | struct saa7164_port *port = fh->port; | |
288 | struct saa7164_dev *dev = port->dev; | |
289 | ||
290 | if (0 != t->index) | |
291 | return -EINVAL; | |
292 | ||
293 | strcpy(t->name, "tuner"); | |
294 | t->type = V4L2_TUNER_ANALOG_TV; | |
295 | t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO; | |
296 | ||
297 | dprintk(DBGLVL_VBI, "VIDIOC_G_TUNER: tuner type %d\n", t->type); | |
298 | ||
299 | return 0; | |
300 | } | |
301 | ||
302 | static int vidioc_s_tuner(struct file *file, void *priv, | |
2f73c7c5 | 303 | const struct v4l2_tuner *t) |
11bd27b2 | 304 | { |
11bd27b2 | 305 | /* Update the A/V core */ |
11bd27b2 ST |
306 | return 0; |
307 | } | |
308 | ||
309 | static int vidioc_g_frequency(struct file *file, void *priv, | |
310 | struct v4l2_frequency *f) | |
311 | { | |
312 | struct saa7164_vbi_fh *fh = file->private_data; | |
313 | struct saa7164_port *port = fh->port; | |
314 | ||
315 | f->type = V4L2_TUNER_ANALOG_TV; | |
316 | f->frequency = port->freq; | |
317 | ||
318 | return 0; | |
319 | } | |
320 | ||
321 | static int vidioc_s_frequency(struct file *file, void *priv, | |
b530a447 | 322 | const struct v4l2_frequency *f) |
11bd27b2 ST |
323 | { |
324 | struct saa7164_vbi_fh *fh = file->private_data; | |
325 | struct saa7164_port *port = fh->port; | |
326 | struct saa7164_dev *dev = port->dev; | |
327 | struct saa7164_port *tsport; | |
328 | struct dvb_frontend *fe; | |
329 | ||
330 | /* TODO: Pull this for the std */ | |
331 | struct analog_parameters params = { | |
332 | .mode = V4L2_TUNER_ANALOG_TV, | |
333 | .audmode = V4L2_TUNER_MODE_STEREO, | |
334 | .std = port->encodernorm.id, | |
335 | .frequency = f->frequency | |
336 | }; | |
337 | ||
338 | /* Stop the encoder */ | |
339 | dprintk(DBGLVL_VBI, "%s() frequency=%d tuner=%d\n", __func__, | |
340 | f->frequency, f->tuner); | |
341 | ||
342 | if (f->tuner != 0) | |
343 | return -EINVAL; | |
344 | ||
345 | if (f->type != V4L2_TUNER_ANALOG_TV) | |
346 | return -EINVAL; | |
347 | ||
348 | port->freq = f->frequency; | |
349 | ||
350 | /* Update the hardware */ | |
351 | if (port->nr == SAA7164_PORT_VBI1) | |
c7e242ba | 352 | tsport = &dev->ports[SAA7164_PORT_TS1]; |
11bd27b2 ST |
353 | else |
354 | if (port->nr == SAA7164_PORT_VBI2) | |
c7e242ba | 355 | tsport = &dev->ports[SAA7164_PORT_TS2]; |
11bd27b2 ST |
356 | else |
357 | BUG(); | |
358 | ||
359 | fe = tsport->dvb.frontend; | |
360 | ||
361 | if (fe && fe->ops.tuner_ops.set_analog_params) | |
362 | fe->ops.tuner_ops.set_analog_params(fe, ¶ms); | |
363 | else | |
364 | printk(KERN_ERR "%s() No analog tuner, aborting\n", __func__); | |
365 | ||
366 | saa7164_vbi_initialize(port); | |
367 | ||
368 | return 0; | |
369 | } | |
370 | ||
371 | static int vidioc_g_ctrl(struct file *file, void *priv, | |
372 | struct v4l2_control *ctl) | |
373 | { | |
374 | struct saa7164_vbi_fh *fh = file->private_data; | |
375 | struct saa7164_port *port = fh->port; | |
376 | struct saa7164_dev *dev = port->dev; | |
377 | ||
378 | dprintk(DBGLVL_VBI, "%s(id=%d, value=%d)\n", __func__, | |
379 | ctl->id, ctl->value); | |
380 | ||
381 | switch (ctl->id) { | |
382 | case V4L2_CID_BRIGHTNESS: | |
383 | ctl->value = port->ctl_brightness; | |
384 | break; | |
385 | case V4L2_CID_CONTRAST: | |
386 | ctl->value = port->ctl_contrast; | |
387 | break; | |
388 | case V4L2_CID_SATURATION: | |
389 | ctl->value = port->ctl_saturation; | |
390 | break; | |
391 | case V4L2_CID_HUE: | |
392 | ctl->value = port->ctl_hue; | |
393 | break; | |
394 | case V4L2_CID_SHARPNESS: | |
395 | ctl->value = port->ctl_sharpness; | |
396 | break; | |
397 | case V4L2_CID_AUDIO_VOLUME: | |
398 | ctl->value = port->ctl_volume; | |
399 | break; | |
400 | default: | |
401 | return -EINVAL; | |
402 | } | |
403 | ||
404 | return 0; | |
405 | } | |
406 | ||
407 | static int vidioc_s_ctrl(struct file *file, void *priv, | |
408 | struct v4l2_control *ctl) | |
409 | { | |
410 | struct saa7164_vbi_fh *fh = file->private_data; | |
411 | struct saa7164_port *port = fh->port; | |
412 | struct saa7164_dev *dev = port->dev; | |
413 | int ret = 0; | |
414 | ||
415 | dprintk(DBGLVL_VBI, "%s(id=%d, value=%d)\n", __func__, | |
416 | ctl->id, ctl->value); | |
417 | ||
418 | switch (ctl->id) { | |
419 | case V4L2_CID_BRIGHTNESS: | |
420 | if ((ctl->value >= 0) && (ctl->value <= 255)) { | |
421 | port->ctl_brightness = ctl->value; | |
422 | saa7164_api_set_usercontrol(port, | |
423 | PU_BRIGHTNESS_CONTROL); | |
424 | } else | |
425 | ret = -EINVAL; | |
426 | break; | |
427 | case V4L2_CID_CONTRAST: | |
428 | if ((ctl->value >= 0) && (ctl->value <= 255)) { | |
429 | port->ctl_contrast = ctl->value; | |
430 | saa7164_api_set_usercontrol(port, PU_CONTRAST_CONTROL); | |
431 | } else | |
432 | ret = -EINVAL; | |
433 | break; | |
434 | case V4L2_CID_SATURATION: | |
435 | if ((ctl->value >= 0) && (ctl->value <= 255)) { | |
436 | port->ctl_saturation = ctl->value; | |
437 | saa7164_api_set_usercontrol(port, | |
438 | PU_SATURATION_CONTROL); | |
439 | } else | |
440 | ret = -EINVAL; | |
441 | break; | |
442 | case V4L2_CID_HUE: | |
443 | if ((ctl->value >= 0) && (ctl->value <= 255)) { | |
444 | port->ctl_hue = ctl->value; | |
445 | saa7164_api_set_usercontrol(port, PU_HUE_CONTROL); | |
446 | } else | |
447 | ret = -EINVAL; | |
448 | break; | |
449 | case V4L2_CID_SHARPNESS: | |
450 | if ((ctl->value >= 0) && (ctl->value <= 255)) { | |
451 | port->ctl_sharpness = ctl->value; | |
452 | saa7164_api_set_usercontrol(port, PU_SHARPNESS_CONTROL); | |
453 | } else | |
454 | ret = -EINVAL; | |
455 | break; | |
456 | case V4L2_CID_AUDIO_VOLUME: | |
457 | if ((ctl->value >= -83) && (ctl->value <= 24)) { | |
458 | port->ctl_volume = ctl->value; | |
459 | saa7164_api_set_audio_volume(port, port->ctl_volume); | |
460 | } else | |
461 | ret = -EINVAL; | |
462 | break; | |
463 | default: | |
464 | ret = -EINVAL; | |
465 | } | |
466 | ||
467 | return ret; | |
468 | } | |
469 | ||
470 | static int saa7164_get_ctrl(struct saa7164_port *port, | |
471 | struct v4l2_ext_control *ctrl) | |
472 | { | |
473 | struct saa7164_vbi_params *params = &port->vbi_params; | |
474 | ||
475 | switch (ctrl->id) { | |
476 | case V4L2_CID_MPEG_STREAM_TYPE: | |
477 | ctrl->value = params->stream_type; | |
478 | break; | |
479 | case V4L2_CID_MPEG_AUDIO_MUTE: | |
480 | ctrl->value = params->ctl_mute; | |
481 | break; | |
482 | case V4L2_CID_MPEG_VIDEO_ASPECT: | |
483 | ctrl->value = params->ctl_aspect; | |
484 | break; | |
485 | case V4L2_CID_MPEG_VIDEO_B_FRAMES: | |
486 | ctrl->value = params->refdist; | |
487 | break; | |
488 | case V4L2_CID_MPEG_VIDEO_GOP_SIZE: | |
489 | ctrl->value = params->gop_size; | |
490 | break; | |
491 | default: | |
492 | return -EINVAL; | |
493 | } | |
494 | return 0; | |
495 | } | |
496 | ||
497 | static int vidioc_g_ext_ctrls(struct file *file, void *priv, | |
498 | struct v4l2_ext_controls *ctrls) | |
499 | { | |
500 | struct saa7164_vbi_fh *fh = file->private_data; | |
501 | struct saa7164_port *port = fh->port; | |
502 | int i, err = 0; | |
503 | ||
504 | if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) { | |
505 | for (i = 0; i < ctrls->count; i++) { | |
506 | struct v4l2_ext_control *ctrl = ctrls->controls + i; | |
507 | ||
508 | err = saa7164_get_ctrl(port, ctrl); | |
509 | if (err) { | |
510 | ctrls->error_idx = i; | |
511 | break; | |
512 | } | |
513 | } | |
514 | return err; | |
515 | ||
516 | } | |
517 | ||
518 | return -EINVAL; | |
519 | } | |
520 | ||
521 | static int saa7164_try_ctrl(struct v4l2_ext_control *ctrl, int ac3) | |
522 | { | |
523 | int ret = -EINVAL; | |
524 | ||
525 | switch (ctrl->id) { | |
526 | case V4L2_CID_MPEG_STREAM_TYPE: | |
527 | if ((ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_PS) || | |
528 | (ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_TS)) | |
529 | ret = 0; | |
530 | break; | |
531 | case V4L2_CID_MPEG_AUDIO_MUTE: | |
532 | if ((ctrl->value >= 0) && | |
533 | (ctrl->value <= 1)) | |
534 | ret = 0; | |
535 | break; | |
536 | case V4L2_CID_MPEG_VIDEO_ASPECT: | |
537 | if ((ctrl->value >= V4L2_MPEG_VIDEO_ASPECT_1x1) && | |
538 | (ctrl->value <= V4L2_MPEG_VIDEO_ASPECT_221x100)) | |
539 | ret = 0; | |
540 | break; | |
541 | case V4L2_CID_MPEG_VIDEO_GOP_SIZE: | |
542 | if ((ctrl->value >= 0) && | |
543 | (ctrl->value <= 255)) | |
544 | ret = 0; | |
545 | break; | |
546 | case V4L2_CID_MPEG_VIDEO_B_FRAMES: | |
547 | if ((ctrl->value >= 1) && | |
548 | (ctrl->value <= 3)) | |
549 | ret = 0; | |
550 | break; | |
551 | default: | |
552 | ret = -EINVAL; | |
553 | } | |
554 | ||
555 | return ret; | |
556 | } | |
557 | ||
558 | static int vidioc_try_ext_ctrls(struct file *file, void *priv, | |
559 | struct v4l2_ext_controls *ctrls) | |
560 | { | |
561 | int i, err = 0; | |
562 | ||
563 | if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) { | |
564 | for (i = 0; i < ctrls->count; i++) { | |
565 | struct v4l2_ext_control *ctrl = ctrls->controls + i; | |
566 | ||
567 | err = saa7164_try_ctrl(ctrl, 0); | |
568 | if (err) { | |
569 | ctrls->error_idx = i; | |
570 | break; | |
571 | } | |
572 | } | |
573 | return err; | |
574 | } | |
575 | ||
576 | return -EINVAL; | |
577 | } | |
578 | ||
579 | static int saa7164_set_ctrl(struct saa7164_port *port, | |
580 | struct v4l2_ext_control *ctrl) | |
581 | { | |
582 | struct saa7164_vbi_params *params = &port->vbi_params; | |
583 | int ret = 0; | |
584 | ||
585 | switch (ctrl->id) { | |
586 | case V4L2_CID_MPEG_STREAM_TYPE: | |
587 | params->stream_type = ctrl->value; | |
588 | break; | |
589 | case V4L2_CID_MPEG_AUDIO_MUTE: | |
590 | params->ctl_mute = ctrl->value; | |
591 | ret = saa7164_api_audio_mute(port, params->ctl_mute); | |
592 | if (ret != SAA_OK) { | |
593 | printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, | |
594 | ret); | |
595 | ret = -EIO; | |
596 | } | |
597 | break; | |
598 | case V4L2_CID_MPEG_VIDEO_ASPECT: | |
599 | params->ctl_aspect = ctrl->value; | |
600 | ret = saa7164_api_set_aspect_ratio(port); | |
601 | if (ret != SAA_OK) { | |
602 | printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, | |
603 | ret); | |
604 | ret = -EIO; | |
605 | } | |
606 | break; | |
607 | case V4L2_CID_MPEG_VIDEO_B_FRAMES: | |
608 | params->refdist = ctrl->value; | |
609 | break; | |
610 | case V4L2_CID_MPEG_VIDEO_GOP_SIZE: | |
611 | params->gop_size = ctrl->value; | |
612 | break; | |
613 | default: | |
614 | return -EINVAL; | |
615 | } | |
616 | ||
617 | /* TODO: Update the hardware */ | |
618 | ||
619 | return ret; | |
620 | } | |
621 | ||
622 | static int vidioc_s_ext_ctrls(struct file *file, void *priv, | |
623 | struct v4l2_ext_controls *ctrls) | |
624 | { | |
625 | struct saa7164_vbi_fh *fh = file->private_data; | |
626 | struct saa7164_port *port = fh->port; | |
627 | int i, err = 0; | |
628 | ||
629 | if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) { | |
630 | for (i = 0; i < ctrls->count; i++) { | |
631 | struct v4l2_ext_control *ctrl = ctrls->controls + i; | |
632 | ||
633 | err = saa7164_try_ctrl(ctrl, 0); | |
634 | if (err) { | |
635 | ctrls->error_idx = i; | |
636 | break; | |
637 | } | |
638 | err = saa7164_set_ctrl(port, ctrl); | |
639 | if (err) { | |
640 | ctrls->error_idx = i; | |
641 | break; | |
642 | } | |
643 | } | |
644 | return err; | |
645 | ||
646 | } | |
647 | ||
648 | return -EINVAL; | |
649 | } | |
650 | ||
651 | static int vidioc_querycap(struct file *file, void *priv, | |
652 | struct v4l2_capability *cap) | |
653 | { | |
654 | struct saa7164_vbi_fh *fh = file->private_data; | |
655 | struct saa7164_port *port = fh->port; | |
656 | struct saa7164_dev *dev = port->dev; | |
657 | ||
658 | strcpy(cap->driver, dev->name); | |
659 | strlcpy(cap->card, saa7164_boards[dev->board].name, | |
660 | sizeof(cap->card)); | |
661 | sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci)); | |
662 | ||
663 | cap->capabilities = | |
664 | V4L2_CAP_VBI_CAPTURE | | |
665 | V4L2_CAP_READWRITE | | |
11bd27b2 ST |
666 | 0; |
667 | ||
668 | cap->capabilities |= V4L2_CAP_TUNER; | |
669 | cap->version = 0; | |
670 | ||
671 | return 0; | |
672 | } | |
673 | ||
674 | static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, | |
675 | struct v4l2_fmtdesc *f) | |
676 | { | |
677 | if (f->index != 0) | |
678 | return -EINVAL; | |
679 | ||
680 | strlcpy(f->description, "VBI", sizeof(f->description)); | |
681 | f->pixelformat = V4L2_PIX_FMT_MPEG; | |
682 | ||
683 | return 0; | |
684 | } | |
685 | ||
686 | static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, | |
687 | struct v4l2_format *f) | |
688 | { | |
689 | struct saa7164_vbi_fh *fh = file->private_data; | |
690 | struct saa7164_port *port = fh->port; | |
691 | struct saa7164_dev *dev = port->dev; | |
692 | ||
693 | f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; | |
694 | f->fmt.pix.bytesperline = 0; | |
695 | f->fmt.pix.sizeimage = | |
696 | port->ts_packet_size * port->ts_packet_count; | |
697 | f->fmt.pix.colorspace = 0; | |
698 | f->fmt.pix.width = port->width; | |
699 | f->fmt.pix.height = port->height; | |
700 | ||
701 | dprintk(DBGLVL_VBI, "VIDIOC_G_FMT: w: %d, h: %d\n", | |
702 | port->width, port->height); | |
703 | ||
704 | return 0; | |
705 | } | |
706 | ||
707 | static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, | |
708 | struct v4l2_format *f) | |
709 | { | |
710 | struct saa7164_vbi_fh *fh = file->private_data; | |
711 | struct saa7164_port *port = fh->port; | |
712 | struct saa7164_dev *dev = port->dev; | |
713 | ||
714 | f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; | |
715 | f->fmt.pix.bytesperline = 0; | |
716 | f->fmt.pix.sizeimage = | |
717 | port->ts_packet_size * port->ts_packet_count; | |
718 | f->fmt.pix.colorspace = 0; | |
719 | dprintk(DBGLVL_VBI, "VIDIOC_TRY_FMT: w: %d, h: %d\n", | |
720 | port->width, port->height); | |
721 | return 0; | |
722 | } | |
723 | ||
724 | static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, | |
725 | struct v4l2_format *f) | |
726 | { | |
727 | struct saa7164_vbi_fh *fh = file->private_data; | |
728 | struct saa7164_port *port = fh->port; | |
729 | struct saa7164_dev *dev = port->dev; | |
730 | ||
731 | f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; | |
732 | f->fmt.pix.bytesperline = 0; | |
733 | f->fmt.pix.sizeimage = | |
734 | port->ts_packet_size * port->ts_packet_count; | |
735 | f->fmt.pix.colorspace = 0; | |
736 | ||
737 | dprintk(DBGLVL_VBI, "VIDIOC_S_FMT: w: %d, h: %d, f: %d\n", | |
738 | f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.field); | |
739 | ||
740 | return 0; | |
741 | } | |
742 | ||
11bd27b2 ST |
743 | static int fill_queryctrl(struct saa7164_vbi_params *params, |
744 | struct v4l2_queryctrl *c) | |
745 | { | |
746 | switch (c->id) { | |
747 | case V4L2_CID_BRIGHTNESS: | |
748 | return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 127); | |
749 | case V4L2_CID_CONTRAST: | |
750 | return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 66); | |
751 | case V4L2_CID_SATURATION: | |
752 | return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 62); | |
753 | case V4L2_CID_HUE: | |
754 | return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 128); | |
755 | case V4L2_CID_SHARPNESS: | |
756 | return v4l2_ctrl_query_fill(c, 0x0, 0x0f, 1, 8); | |
757 | case V4L2_CID_MPEG_AUDIO_MUTE: | |
758 | return v4l2_ctrl_query_fill(c, 0x0, 0x01, 1, 0); | |
759 | case V4L2_CID_AUDIO_VOLUME: | |
760 | return v4l2_ctrl_query_fill(c, -83, 24, 1, 20); | |
761 | case V4L2_CID_MPEG_STREAM_TYPE: | |
762 | return v4l2_ctrl_query_fill(c, | |
763 | V4L2_MPEG_STREAM_TYPE_MPEG2_PS, | |
764 | V4L2_MPEG_STREAM_TYPE_MPEG2_TS, | |
765 | 1, V4L2_MPEG_STREAM_TYPE_MPEG2_PS); | |
766 | case V4L2_CID_MPEG_VIDEO_ASPECT: | |
767 | return v4l2_ctrl_query_fill(c, | |
768 | V4L2_MPEG_VIDEO_ASPECT_1x1, | |
769 | V4L2_MPEG_VIDEO_ASPECT_221x100, | |
770 | 1, V4L2_MPEG_VIDEO_ASPECT_4x3); | |
771 | case V4L2_CID_MPEG_VIDEO_GOP_SIZE: | |
772 | return v4l2_ctrl_query_fill(c, 1, 255, 1, 15); | |
773 | case V4L2_CID_MPEG_VIDEO_B_FRAMES: | |
774 | return v4l2_ctrl_query_fill(c, | |
775 | 1, 3, 1, 1); | |
776 | default: | |
777 | return -EINVAL; | |
778 | } | |
779 | } | |
780 | ||
781 | static int vidioc_queryctrl(struct file *file, void *priv, | |
782 | struct v4l2_queryctrl *c) | |
783 | { | |
784 | struct saa7164_vbi_fh *fh = priv; | |
785 | struct saa7164_port *port = fh->port; | |
786 | int i, next; | |
787 | u32 id = c->id; | |
788 | ||
789 | memset(c, 0, sizeof(*c)); | |
790 | ||
791 | next = !!(id & V4L2_CTRL_FLAG_NEXT_CTRL); | |
792 | c->id = id & ~V4L2_CTRL_FLAG_NEXT_CTRL; | |
793 | ||
794 | for (i = 0; i < ARRAY_SIZE(saa7164_v4l2_ctrls); i++) { | |
795 | if (next) { | |
796 | if (c->id < saa7164_v4l2_ctrls[i]) | |
797 | c->id = saa7164_v4l2_ctrls[i]; | |
798 | else | |
799 | continue; | |
800 | } | |
801 | ||
802 | if (c->id == saa7164_v4l2_ctrls[i]) | |
803 | return fill_queryctrl(&port->vbi_params, c); | |
804 | ||
805 | if (c->id < saa7164_v4l2_ctrls[i]) | |
806 | break; | |
807 | } | |
808 | ||
809 | return -EINVAL; | |
810 | } | |
811 | ||
812 | static int saa7164_vbi_stop_port(struct saa7164_port *port) | |
813 | { | |
814 | struct saa7164_dev *dev = port->dev; | |
815 | int ret; | |
816 | ||
817 | ret = saa7164_api_transition_port(port, SAA_DMASTATE_STOP); | |
818 | if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) { | |
819 | printk(KERN_ERR "%s() stop transition failed, ret = 0x%x\n", | |
820 | __func__, ret); | |
821 | ret = -EIO; | |
822 | } else { | |
823 | dprintk(DBGLVL_VBI, "%s() Stopped\n", __func__); | |
824 | ret = 0; | |
825 | } | |
826 | ||
827 | return ret; | |
828 | } | |
829 | ||
830 | static int saa7164_vbi_acquire_port(struct saa7164_port *port) | |
831 | { | |
832 | struct saa7164_dev *dev = port->dev; | |
833 | int ret; | |
834 | ||
835 | ret = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE); | |
836 | if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) { | |
837 | printk(KERN_ERR "%s() acquire transition failed, ret = 0x%x\n", | |
838 | __func__, ret); | |
839 | ret = -EIO; | |
840 | } else { | |
841 | dprintk(DBGLVL_VBI, "%s() Acquired\n", __func__); | |
842 | ret = 0; | |
843 | } | |
844 | ||
845 | return ret; | |
846 | } | |
847 | ||
848 | static int saa7164_vbi_pause_port(struct saa7164_port *port) | |
849 | { | |
850 | struct saa7164_dev *dev = port->dev; | |
851 | int ret; | |
852 | ||
853 | ret = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE); | |
854 | if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) { | |
855 | printk(KERN_ERR "%s() pause transition failed, ret = 0x%x\n", | |
856 | __func__, ret); | |
857 | ret = -EIO; | |
858 | } else { | |
859 | dprintk(DBGLVL_VBI, "%s() Paused\n", __func__); | |
860 | ret = 0; | |
861 | } | |
862 | ||
863 | return ret; | |
864 | } | |
865 | ||
866 | /* Firmware is very windows centric, meaning you have to transition | |
867 | * the part through AVStream / KS Windows stages, forwards or backwards. | |
868 | * States are: stopped, acquired (h/w), paused, started. | |
869 | * We have to leave here will all of the soft buffers on the free list, | |
870 | * else the cfg_post() func won't have soft buffers to correctly configure. | |
871 | */ | |
872 | static int saa7164_vbi_stop_streaming(struct saa7164_port *port) | |
873 | { | |
874 | struct saa7164_dev *dev = port->dev; | |
875 | struct saa7164_buffer *buf; | |
876 | struct saa7164_user_buffer *ubuf; | |
877 | struct list_head *c, *n; | |
878 | int ret; | |
879 | ||
880 | dprintk(DBGLVL_VBI, "%s(port=%d)\n", __func__, port->nr); | |
881 | ||
882 | ret = saa7164_vbi_pause_port(port); | |
883 | ret = saa7164_vbi_acquire_port(port); | |
884 | ret = saa7164_vbi_stop_port(port); | |
885 | ||
886 | dprintk(DBGLVL_VBI, "%s(port=%d) Hardware stopped\n", __func__, | |
887 | port->nr); | |
888 | ||
889 | /* Reset the state of any allocated buffer resources */ | |
890 | mutex_lock(&port->dmaqueue_lock); | |
891 | ||
892 | /* Reset the hard and soft buffer state */ | |
893 | list_for_each_safe(c, n, &port->dmaqueue.list) { | |
894 | buf = list_entry(c, struct saa7164_buffer, list); | |
895 | buf->flags = SAA7164_BUFFER_FREE; | |
896 | buf->pos = 0; | |
897 | } | |
898 | ||
899 | list_for_each_safe(c, n, &port->list_buf_used.list) { | |
900 | ubuf = list_entry(c, struct saa7164_user_buffer, list); | |
901 | ubuf->pos = 0; | |
902 | list_move_tail(&ubuf->list, &port->list_buf_free.list); | |
903 | } | |
904 | ||
905 | mutex_unlock(&port->dmaqueue_lock); | |
906 | ||
907 | /* Free any allocated resources */ | |
908 | saa7164_vbi_buffers_dealloc(port); | |
909 | ||
910 | dprintk(DBGLVL_VBI, "%s(port=%d) Released\n", __func__, port->nr); | |
911 | ||
912 | return ret; | |
913 | } | |
914 | ||
915 | static int saa7164_vbi_start_streaming(struct saa7164_port *port) | |
916 | { | |
917 | struct saa7164_dev *dev = port->dev; | |
918 | int result, ret = 0; | |
919 | ||
920 | dprintk(DBGLVL_VBI, "%s(port=%d)\n", __func__, port->nr); | |
921 | ||
922 | port->done_first_interrupt = 0; | |
923 | ||
924 | /* allocate all of the PCIe DMA buffer resources on the fly, | |
925 | * allowing switching between TS and PS payloads without | |
926 | * requiring a complete driver reload. | |
927 | */ | |
928 | saa7164_vbi_buffers_alloc(port); | |
929 | ||
930 | /* Configure the encoder with any cache values */ | |
bc250684 ST |
931 | #if 0 |
932 | saa7164_api_set_encoder(port); | |
933 | saa7164_api_get_encoder(port); | |
934 | #endif | |
11bd27b2 ST |
935 | |
936 | /* Place the empty buffers on the hardware */ | |
937 | saa7164_buffer_cfg_port(port); | |
938 | ||
939 | /* Negotiate format */ | |
940 | if (saa7164_api_set_vbi_format(port) != SAA_OK) { | |
941 | printk(KERN_ERR "%s() No supported VBI format\n", __func__); | |
942 | ret = -EIO; | |
943 | goto out; | |
944 | } | |
945 | ||
946 | /* Acquire the hardware */ | |
947 | result = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE); | |
948 | if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { | |
949 | printk(KERN_ERR "%s() acquire transition failed, res = 0x%x\n", | |
950 | __func__, result); | |
951 | ||
952 | ret = -EIO; | |
953 | goto out; | |
954 | } else | |
955 | dprintk(DBGLVL_VBI, "%s() Acquired\n", __func__); | |
956 | ||
957 | /* Pause the hardware */ | |
958 | result = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE); | |
959 | if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { | |
960 | printk(KERN_ERR "%s() pause transition failed, res = 0x%x\n", | |
961 | __func__, result); | |
962 | ||
963 | /* Stop the hardware, regardless */ | |
964 | result = saa7164_vbi_stop_port(port); | |
2e71064f | 965 | if (result != SAA_OK) { |
11bd27b2 ST |
966 | printk(KERN_ERR "%s() pause/forced stop transition " |
967 | "failed, res = 0x%x\n", __func__, result); | |
968 | } | |
969 | ||
970 | ret = -EIO; | |
971 | goto out; | |
972 | } else | |
973 | dprintk(DBGLVL_VBI, "%s() Paused\n", __func__); | |
974 | ||
975 | /* Start the hardware */ | |
976 | result = saa7164_api_transition_port(port, SAA_DMASTATE_RUN); | |
977 | if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) { | |
978 | printk(KERN_ERR "%s() run transition failed, result = 0x%x\n", | |
979 | __func__, result); | |
980 | ||
981 | /* Stop the hardware, regardless */ | |
982 | result = saa7164_vbi_acquire_port(port); | |
983 | result = saa7164_vbi_stop_port(port); | |
2e71064f | 984 | if (result != SAA_OK) { |
11bd27b2 ST |
985 | printk(KERN_ERR "%s() run/forced stop transition " |
986 | "failed, res = 0x%x\n", __func__, result); | |
987 | } | |
988 | ||
989 | ret = -EIO; | |
990 | } else | |
991 | dprintk(DBGLVL_VBI, "%s() Running\n", __func__); | |
992 | ||
993 | out: | |
994 | return ret; | |
995 | } | |
996 | ||
5faf7db8 MCC |
997 | static int saa7164_vbi_fmt(struct file *file, void *priv, |
998 | struct v4l2_format *f) | |
11bd27b2 | 999 | { |
11bd27b2 ST |
1000 | /* ntsc */ |
1001 | f->fmt.vbi.samples_per_line = 1600; | |
1002 | f->fmt.vbi.samples_per_line = 1440; | |
1003 | f->fmt.vbi.sampling_rate = 27000000; | |
1004 | f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; | |
1005 | f->fmt.vbi.offset = 0; | |
1006 | f->fmt.vbi.flags = 0; | |
1007 | f->fmt.vbi.start[0] = 10; | |
1008 | f->fmt.vbi.count[0] = 18; | |
1009 | f->fmt.vbi.start[1] = 263 + 10 + 1; | |
1010 | f->fmt.vbi.count[1] = 18; | |
1011 | return 0; | |
1012 | } | |
1013 | ||
1014 | static int fops_open(struct file *file) | |
1015 | { | |
214ce3fa ST |
1016 | struct saa7164_dev *dev; |
1017 | struct saa7164_port *port; | |
11bd27b2 | 1018 | struct saa7164_vbi_fh *fh; |
11bd27b2 | 1019 | |
214ce3fa ST |
1020 | port = (struct saa7164_port *)video_get_drvdata(video_devdata(file)); |
1021 | if (!port) | |
1022 | return -ENODEV; | |
11bd27b2 | 1023 | |
214ce3fa | 1024 | dev = port->dev; |
11bd27b2 | 1025 | |
214ce3fa | 1026 | dprintk(DBGLVL_VBI, "%s()\n", __func__); |
11bd27b2 ST |
1027 | |
1028 | /* allocate + initialize per filehandle data */ | |
1029 | fh = kzalloc(sizeof(*fh), GFP_KERNEL); | |
214ce3fa | 1030 | if (NULL == fh) |
11bd27b2 | 1031 | return -ENOMEM; |
11bd27b2 ST |
1032 | |
1033 | file->private_data = fh; | |
1034 | fh->port = port; | |
1035 | ||
11bd27b2 ST |
1036 | return 0; |
1037 | } | |
1038 | ||
1039 | static int fops_release(struct file *file) | |
1040 | { | |
1041 | struct saa7164_vbi_fh *fh = file->private_data; | |
1042 | struct saa7164_port *port = fh->port; | |
1043 | struct saa7164_dev *dev = port->dev; | |
1044 | ||
1045 | dprintk(DBGLVL_VBI, "%s()\n", __func__); | |
1046 | ||
1047 | /* Shut device down on last close */ | |
1048 | if (atomic_cmpxchg(&fh->v4l_reading, 1, 0) == 1) { | |
1049 | if (atomic_dec_return(&port->v4l_reader_count) == 0) { | |
1050 | /* stop vbi capture then cancel buffers */ | |
1051 | saa7164_vbi_stop_streaming(port); | |
1052 | } | |
1053 | } | |
1054 | ||
1055 | file->private_data = NULL; | |
1056 | kfree(fh); | |
1057 | ||
1058 | return 0; | |
1059 | } | |
1060 | ||
5faf7db8 MCC |
1061 | static struct |
1062 | saa7164_user_buffer *saa7164_vbi_next_buf(struct saa7164_port *port) | |
11bd27b2 | 1063 | { |
61ca1500 | 1064 | struct saa7164_user_buffer *ubuf = NULL; |
11bd27b2 ST |
1065 | struct saa7164_dev *dev = port->dev; |
1066 | u32 crc; | |
1067 | ||
1068 | mutex_lock(&port->dmaqueue_lock); | |
1069 | if (!list_empty(&port->list_buf_used.list)) { | |
1070 | ubuf = list_first_entry(&port->list_buf_used.list, | |
1071 | struct saa7164_user_buffer, list); | |
1072 | ||
1073 | if (crc_checking) { | |
1074 | crc = crc32(0, ubuf->data, ubuf->actual_size); | |
1075 | if (crc != ubuf->crc) { | |
bc250684 ST |
1076 | printk(KERN_ERR "%s() ubuf %p crc became invalid, was 0x%x became 0x%x\n", |
1077 | __func__, | |
11bd27b2 ST |
1078 | ubuf, ubuf->crc, crc); |
1079 | } | |
1080 | } | |
1081 | ||
1082 | } | |
1083 | mutex_unlock(&port->dmaqueue_lock); | |
1084 | ||
1085 | dprintk(DBGLVL_VBI, "%s() returns %p\n", __func__, ubuf); | |
1086 | ||
1087 | return ubuf; | |
1088 | } | |
1089 | ||
1090 | static ssize_t fops_read(struct file *file, char __user *buffer, | |
1091 | size_t count, loff_t *pos) | |
1092 | { | |
1093 | struct saa7164_vbi_fh *fh = file->private_data; | |
1094 | struct saa7164_port *port = fh->port; | |
1095 | struct saa7164_user_buffer *ubuf = NULL; | |
1096 | struct saa7164_dev *dev = port->dev; | |
106d7e37 | 1097 | int ret = 0; |
11bd27b2 ST |
1098 | int rem, cnt; |
1099 | u8 *p; | |
1100 | ||
1101 | port->last_read_msecs_diff = port->last_read_msecs; | |
1102 | port->last_read_msecs = jiffies_to_msecs(jiffies); | |
1103 | port->last_read_msecs_diff = port->last_read_msecs - | |
1104 | port->last_read_msecs_diff; | |
1105 | ||
1106 | saa7164_histogram_update(&port->read_interval, | |
1107 | port->last_read_msecs_diff); | |
1108 | ||
1109 | if (*pos) { | |
1110 | printk(KERN_ERR "%s() ESPIPE\n", __func__); | |
1111 | return -ESPIPE; | |
1112 | } | |
1113 | ||
1114 | if (atomic_cmpxchg(&fh->v4l_reading, 0, 1) == 0) { | |
1115 | if (atomic_inc_return(&port->v4l_reader_count) == 1) { | |
1116 | ||
1117 | if (saa7164_vbi_initialize(port) < 0) { | |
1118 | printk(KERN_ERR "%s() EINVAL\n", __func__); | |
1119 | return -EINVAL; | |
1120 | } | |
1121 | ||
1122 | saa7164_vbi_start_streaming(port); | |
1123 | msleep(200); | |
1124 | } | |
1125 | } | |
1126 | ||
1127 | /* blocking wait for buffer */ | |
1128 | if ((file->f_flags & O_NONBLOCK) == 0) { | |
1129 | if (wait_event_interruptible(port->wait_read, | |
1130 | saa7164_vbi_next_buf(port))) { | |
1131 | printk(KERN_ERR "%s() ERESTARTSYS\n", __func__); | |
1132 | return -ERESTARTSYS; | |
1133 | } | |
1134 | } | |
1135 | ||
1136 | /* Pull the first buffer from the used list */ | |
1137 | ubuf = saa7164_vbi_next_buf(port); | |
1138 | ||
1139 | while ((count > 0) && ubuf) { | |
1140 | ||
1141 | /* set remaining bytes to copy */ | |
1142 | rem = ubuf->actual_size - ubuf->pos; | |
1143 | cnt = rem > count ? count : rem; | |
1144 | ||
1145 | p = ubuf->data + ubuf->pos; | |
1146 | ||
1147 | dprintk(DBGLVL_VBI, | |
1148 | "%s() count=%d cnt=%d rem=%d buf=%p buf->pos=%d\n", | |
1149 | __func__, (int)count, cnt, rem, ubuf, ubuf->pos); | |
1150 | ||
1151 | if (copy_to_user(buffer, p, cnt)) { | |
1152 | printk(KERN_ERR "%s() copy_to_user failed\n", __func__); | |
1153 | if (!ret) { | |
1154 | printk(KERN_ERR "%s() EFAULT\n", __func__); | |
1155 | ret = -EFAULT; | |
1156 | } | |
1157 | goto err; | |
1158 | } | |
1159 | ||
1160 | ubuf->pos += cnt; | |
1161 | count -= cnt; | |
1162 | buffer += cnt; | |
1163 | ret += cnt; | |
1164 | ||
bc250684 | 1165 | if (ubuf->pos > ubuf->actual_size) |
11bd27b2 | 1166 | printk(KERN_ERR "read() pos > actual, huh?\n"); |
11bd27b2 ST |
1167 | |
1168 | if (ubuf->pos == ubuf->actual_size) { | |
1169 | ||
1170 | /* finished with current buffer, take next buffer */ | |
1171 | ||
1172 | /* Requeue the buffer on the free list */ | |
1173 | ubuf->pos = 0; | |
1174 | ||
1175 | mutex_lock(&port->dmaqueue_lock); | |
1176 | list_move_tail(&ubuf->list, &port->list_buf_free.list); | |
1177 | mutex_unlock(&port->dmaqueue_lock); | |
1178 | ||
1179 | /* Dequeue next */ | |
1180 | if ((file->f_flags & O_NONBLOCK) == 0) { | |
1181 | if (wait_event_interruptible(port->wait_read, | |
1182 | saa7164_vbi_next_buf(port))) { | |
1183 | break; | |
1184 | } | |
1185 | } | |
1186 | ubuf = saa7164_vbi_next_buf(port); | |
1187 | } | |
1188 | } | |
1189 | err: | |
1190 | if (!ret && !ubuf) { | |
1191 | printk(KERN_ERR "%s() EAGAIN\n", __func__); | |
1192 | ret = -EAGAIN; | |
1193 | } | |
1194 | ||
1195 | return ret; | |
1196 | } | |
1197 | ||
1198 | static unsigned int fops_poll(struct file *file, poll_table *wait) | |
1199 | { | |
1200 | struct saa7164_vbi_fh *fh = (struct saa7164_vbi_fh *)file->private_data; | |
1201 | struct saa7164_port *port = fh->port; | |
11bd27b2 ST |
1202 | unsigned int mask = 0; |
1203 | ||
1204 | port->last_poll_msecs_diff = port->last_poll_msecs; | |
1205 | port->last_poll_msecs = jiffies_to_msecs(jiffies); | |
1206 | port->last_poll_msecs_diff = port->last_poll_msecs - | |
1207 | port->last_poll_msecs_diff; | |
1208 | ||
1209 | saa7164_histogram_update(&port->poll_interval, | |
1210 | port->last_poll_msecs_diff); | |
1211 | ||
bc250684 | 1212 | if (!video_is_registered(port->v4l_device)) |
11bd27b2 | 1213 | return -EIO; |
11bd27b2 ST |
1214 | |
1215 | if (atomic_cmpxchg(&fh->v4l_reading, 0, 1) == 0) { | |
1216 | if (atomic_inc_return(&port->v4l_reader_count) == 1) { | |
1217 | if (saa7164_vbi_initialize(port) < 0) | |
1218 | return -EINVAL; | |
1219 | saa7164_vbi_start_streaming(port); | |
1220 | msleep(200); | |
1221 | } | |
1222 | } | |
1223 | ||
1224 | /* blocking wait for buffer */ | |
1225 | if ((file->f_flags & O_NONBLOCK) == 0) { | |
1226 | if (wait_event_interruptible(port->wait_read, | |
1227 | saa7164_vbi_next_buf(port))) { | |
1228 | return -ERESTARTSYS; | |
1229 | } | |
1230 | } | |
1231 | ||
1232 | /* Pull the first buffer from the used list */ | |
061d55eb | 1233 | if (!list_empty(&port->list_buf_used.list)) |
11bd27b2 ST |
1234 | mask |= POLLIN | POLLRDNORM; |
1235 | ||
1236 | return mask; | |
1237 | } | |
1238 | static const struct v4l2_file_operations vbi_fops = { | |
1239 | .owner = THIS_MODULE, | |
1240 | .open = fops_open, | |
1241 | .release = fops_release, | |
1242 | .read = fops_read, | |
1243 | .poll = fops_poll, | |
1244 | .unlocked_ioctl = video_ioctl2, | |
1245 | }; | |
1246 | ||
1247 | static const struct v4l2_ioctl_ops vbi_ioctl_ops = { | |
1248 | .vidioc_s_std = vidioc_s_std, | |
8d2d41e9 | 1249 | .vidioc_g_std = vidioc_g_std, |
11bd27b2 ST |
1250 | .vidioc_enum_input = vidioc_enum_input, |
1251 | .vidioc_g_input = vidioc_g_input, | |
1252 | .vidioc_s_input = vidioc_s_input, | |
1253 | .vidioc_g_tuner = vidioc_g_tuner, | |
1254 | .vidioc_s_tuner = vidioc_s_tuner, | |
1255 | .vidioc_g_frequency = vidioc_g_frequency, | |
1256 | .vidioc_s_frequency = vidioc_s_frequency, | |
1257 | .vidioc_s_ctrl = vidioc_s_ctrl, | |
1258 | .vidioc_g_ctrl = vidioc_g_ctrl, | |
1259 | .vidioc_querycap = vidioc_querycap, | |
1260 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, | |
1261 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, | |
1262 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, | |
1263 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, | |
1264 | .vidioc_g_ext_ctrls = vidioc_g_ext_ctrls, | |
1265 | .vidioc_s_ext_ctrls = vidioc_s_ext_ctrls, | |
1266 | .vidioc_try_ext_ctrls = vidioc_try_ext_ctrls, | |
11bd27b2 | 1267 | .vidioc_queryctrl = vidioc_queryctrl, |
11bd27b2 ST |
1268 | .vidioc_g_fmt_vbi_cap = saa7164_vbi_fmt, |
1269 | .vidioc_try_fmt_vbi_cap = saa7164_vbi_fmt, | |
1270 | .vidioc_s_fmt_vbi_cap = saa7164_vbi_fmt, | |
1271 | }; | |
1272 | ||
1273 | static struct video_device saa7164_vbi_template = { | |
1274 | .name = "saa7164", | |
1275 | .fops = &vbi_fops, | |
1276 | .ioctl_ops = &vbi_ioctl_ops, | |
1277 | .minor = -1, | |
1278 | .tvnorms = SAA7164_NORMS, | |
11bd27b2 ST |
1279 | }; |
1280 | ||
1281 | static struct video_device *saa7164_vbi_alloc( | |
1282 | struct saa7164_port *port, | |
1283 | struct pci_dev *pci, | |
1284 | struct video_device *template, | |
1285 | char *type) | |
1286 | { | |
1287 | struct video_device *vfd; | |
1288 | struct saa7164_dev *dev = port->dev; | |
1289 | ||
1290 | dprintk(DBGLVL_VBI, "%s()\n", __func__); | |
1291 | ||
1292 | vfd = video_device_alloc(); | |
1293 | if (NULL == vfd) | |
1294 | return NULL; | |
1295 | ||
1296 | *vfd = *template; | |
1297 | snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name, | |
1298 | type, saa7164_boards[dev->board].name); | |
1299 | ||
d66de790 | 1300 | vfd->v4l2_dev = &dev->v4l2_dev; |
11bd27b2 ST |
1301 | vfd->release = video_device_release; |
1302 | return vfd; | |
1303 | } | |
1304 | ||
1305 | int saa7164_vbi_register(struct saa7164_port *port) | |
1306 | { | |
1307 | struct saa7164_dev *dev = port->dev; | |
1308 | int result = -ENODEV; | |
1309 | ||
1310 | dprintk(DBGLVL_VBI, "%s()\n", __func__); | |
1311 | ||
1312 | if (port->type != SAA7164_MPEG_VBI) | |
1313 | BUG(); | |
1314 | ||
1315 | /* Sanity check that the PCI configuration space is active */ | |
1316 | if (port->hwcfg.BARLocation == 0) { | |
1317 | printk(KERN_ERR "%s() failed " | |
1318 | "(errno = %d), NO PCI configuration\n", | |
1319 | __func__, result); | |
1320 | result = -ENOMEM; | |
1321 | goto failed; | |
1322 | } | |
1323 | ||
1324 | /* Establish VBI defaults here */ | |
1325 | ||
1326 | /* Allocate and register the video device node */ | |
1327 | port->v4l_device = saa7164_vbi_alloc(port, | |
1328 | dev->pci, &saa7164_vbi_template, "vbi"); | |
1329 | ||
61ca1500 | 1330 | if (!port->v4l_device) { |
11bd27b2 ST |
1331 | printk(KERN_INFO "%s: can't allocate vbi device\n", |
1332 | dev->name); | |
1333 | result = -ENOMEM; | |
1334 | goto failed; | |
1335 | } | |
1336 | ||
8d2d41e9 | 1337 | port->std = V4L2_STD_NTSC_M; |
214ce3fa | 1338 | video_set_drvdata(port->v4l_device, port); |
11bd27b2 ST |
1339 | result = video_register_device(port->v4l_device, |
1340 | VFL_TYPE_VBI, -1); | |
1341 | if (result < 0) { | |
1342 | printk(KERN_INFO "%s: can't register vbi device\n", | |
1343 | dev->name); | |
1344 | /* TODO: We're going to leak here if we don't dealloc | |
1345 | The buffers above. The unreg function can't deal wit it. | |
1346 | */ | |
1347 | goto failed; | |
1348 | } | |
1349 | ||
1350 | printk(KERN_INFO "%s: registered device vbi%d [vbi]\n", | |
1351 | dev->name, port->v4l_device->num); | |
1352 | ||
1353 | /* Configure the hardware defaults */ | |
1354 | ||
1355 | result = 0; | |
1356 | failed: | |
1357 | return result; | |
1358 | } | |
1359 | ||
1360 | void saa7164_vbi_unregister(struct saa7164_port *port) | |
1361 | { | |
1362 | struct saa7164_dev *dev = port->dev; | |
1363 | ||
1364 | dprintk(DBGLVL_VBI, "%s(port=%d)\n", __func__, port->nr); | |
1365 | ||
1366 | if (port->type != SAA7164_MPEG_VBI) | |
1367 | BUG(); | |
1368 | ||
1369 | if (port->v4l_device) { | |
1370 | if (port->v4l_device->minor != -1) | |
1371 | video_unregister_device(port->v4l_device); | |
1372 | else | |
1373 | video_device_release(port->v4l_device); | |
1374 | ||
1375 | port->v4l_device = NULL; | |
1376 | } | |
1377 | ||
1378 | } |