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Commit | Line | Data |
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02b20b0b MCC |
1 | /* |
2 | * Driver for the Conexant CX25821 PCIe bridge | |
3 | * | |
bb4c9a74 | 4 | * Copyright (C) 2009 Conexant Systems Inc. |
02b20b0b MCC |
5 | * Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com> |
6 | * Based on Steven Toth <stoth@linuxtv.org> cx23885 driver | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | */ | |
23 | ||
24 | #include "cx25821-video.h" | |
25 | ||
02b20b0b MCC |
26 | static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) |
27 | { | |
1a9fc855 MCC |
28 | struct cx25821_buffer *buf = |
29 | container_of(vb, struct cx25821_buffer, vb); | |
30 | struct cx25821_buffer *prev; | |
31 | struct cx25821_fh *fh = vq->priv_data; | |
32 | struct cx25821_dev *dev = fh->dev; | |
33 | struct cx25821_dmaqueue *q = &dev->vidq[SRAM_CH00]; | |
34 | ||
35 | /* add jump to stopper */ | |
36 | buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC); | |
37 | buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma); | |
38 | buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */ | |
39 | ||
40 | dprintk(2, "jmp to stopper (0x%x)\n", buf->risc.jmp[1]); | |
41 | ||
42 | if (!list_empty(&q->queued)) { | |
43 | list_add_tail(&buf->vb.queue, &q->queued); | |
44 | buf->vb.state = VIDEOBUF_QUEUED; | |
45 | dprintk(2, "[%p/%d] buffer_queue - append to queued\n", buf, | |
46 | buf->vb.i); | |
47 | ||
48 | } else if (list_empty(&q->active)) { | |
49 | list_add_tail(&buf->vb.queue, &q->active); | |
50 | cx25821_start_video_dma(dev, q, buf, | |
51 | &dev->sram_channels[SRAM_CH00]); | |
52 | buf->vb.state = VIDEOBUF_ACTIVE; | |
53 | buf->count = q->count++; | |
54 | mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT); | |
55 | dprintk(2, | |
56 | "[%p/%d] buffer_queue - first active, buf cnt = %d, q->count = %d\n", | |
57 | buf, buf->vb.i, buf->count, q->count); | |
bb4c9a74 | 58 | } else { |
1a9fc855 MCC |
59 | prev = |
60 | list_entry(q->active.prev, struct cx25821_buffer, vb.queue); | |
61 | if (prev->vb.width == buf->vb.width | |
62 | && prev->vb.height == buf->vb.height | |
63 | && prev->fmt == buf->fmt) { | |
64 | list_add_tail(&buf->vb.queue, &q->active); | |
65 | buf->vb.state = VIDEOBUF_ACTIVE; | |
66 | buf->count = q->count++; | |
67 | prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma); | |
68 | ||
69 | /* 64 bit bits 63-32 */ | |
70 | prev->risc.jmp[2] = cpu_to_le32(0); | |
71 | dprintk(2, | |
72 | "[%p/%d] buffer_queue - append to active, buf->count=%d\n", | |
73 | buf, buf->vb.i, buf->count); | |
74 | ||
75 | } else { | |
76 | list_add_tail(&buf->vb.queue, &q->queued); | |
77 | buf->vb.state = VIDEOBUF_QUEUED; | |
78 | dprintk(2, "[%p/%d] buffer_queue - first queued\n", buf, | |
79 | buf->vb.i); | |
80 | } | |
bb4c9a74 | 81 | } |
02b20b0b | 82 | |
1a9fc855 MCC |
83 | if (list_empty(&q->active)) { |
84 | dprintk(2, "active queue empty!\n"); | |
85 | } | |
02b20b0b MCC |
86 | } |
87 | ||
02b20b0b | 88 | static struct videobuf_queue_ops cx25821_video_qops = { |
f2466d63 MCC |
89 | .buf_setup = cx25821_buffer_setup, |
90 | .buf_prepare = cx25821_buffer_prepare, | |
1a9fc855 | 91 | .buf_queue = buffer_queue, |
f2466d63 | 92 | .buf_release = cx25821_buffer_release, |
02b20b0b MCC |
93 | }; |
94 | ||
02b20b0b MCC |
95 | static int video_open(struct file *file) |
96 | { | |
50462eb0 | 97 | struct video_device *vdev = video_devdata(file); |
63b0d5ad | 98 | struct cx25821_dev *dev = video_drvdata(file); |
1a9fc855 | 99 | struct cx25821_fh *fh; |
63b0d5ad | 100 | enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
1a9fc855 MCC |
101 | u32 pix_format; |
102 | ||
50462eb0 LP |
103 | printk("open dev=%s type=%s\n", video_device_node_name(vdev), |
104 | v4l2_type_names[type]); | |
02b20b0b | 105 | |
1a9fc855 MCC |
106 | /* allocate + initialize per filehandle data */ |
107 | fh = kzalloc(sizeof(*fh), GFP_KERNEL); | |
63b0d5ad | 108 | if (NULL == fh) |
1a9fc855 | 109 | return -ENOMEM; |
63b0d5ad LP |
110 | |
111 | lock_kernel(); | |
02b20b0b | 112 | |
1a9fc855 MCC |
113 | file->private_data = fh; |
114 | fh->dev = dev; | |
115 | fh->type = type; | |
116 | fh->width = 720; | |
02b20b0b | 117 | |
1a9fc855 MCC |
118 | if (dev->tvnorm & V4L2_STD_PAL_BG || dev->tvnorm & V4L2_STD_PAL_DK) |
119 | fh->height = 576; | |
120 | else | |
121 | fh->height = 480; | |
02b20b0b | 122 | |
1a9fc855 MCC |
123 | dev->channel_opened = SRAM_CH00; |
124 | pix_format = | |
125 | (dev->pixel_formats[dev->channel_opened] == | |
126 | PIXEL_FRMT_411) ? V4L2_PIX_FMT_Y41P : V4L2_PIX_FMT_YUYV; | |
127 | fh->fmt = format_by_fourcc(pix_format); | |
bb4c9a74 | 128 | |
1a9fc855 | 129 | v4l2_prio_open(&dev->prio, &fh->prio); |
02b20b0b | 130 | |
1a9fc855 MCC |
131 | videobuf_queue_sg_init(&fh->vidq, &cx25821_video_qops, |
132 | &dev->pci->dev, &dev->slock, | |
133 | V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
134 | V4L2_FIELD_INTERLACED, | |
135 | sizeof(struct cx25821_buffer), fh); | |
02b20b0b | 136 | |
1a9fc855 MCC |
137 | dprintk(1, "post videobuf_queue_init()\n"); |
138 | unlock_kernel(); | |
02b20b0b | 139 | |
1a9fc855 | 140 | return 0; |
02b20b0b MCC |
141 | } |
142 | ||
1a9fc855 MCC |
143 | static ssize_t video_read(struct file *file, char __user * data, size_t count, |
144 | loff_t * ppos) | |
02b20b0b | 145 | { |
1a9fc855 | 146 | struct cx25821_fh *fh = file->private_data; |
02b20b0b | 147 | |
1a9fc855 | 148 | switch (fh->type) { |
bb4c9a74 | 149 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
f2466d63 | 150 | if (cx25821_res_locked(fh->dev, RESOURCE_VIDEO0)) |
1a9fc855 | 151 | return -EBUSY; |
02b20b0b | 152 | |
1a9fc855 MCC |
153 | return videobuf_read_one(&fh->vidq, data, count, ppos, |
154 | file->f_flags & O_NONBLOCK); | |
02b20b0b | 155 | |
bb4c9a74 | 156 | default: |
1a9fc855 MCC |
157 | BUG(); |
158 | return 0; | |
159 | } | |
02b20b0b MCC |
160 | } |
161 | ||
1a9fc855 MCC |
162 | static unsigned int video_poll(struct file *file, |
163 | struct poll_table_struct *wait) | |
02b20b0b | 164 | { |
1a9fc855 MCC |
165 | struct cx25821_fh *fh = file->private_data; |
166 | struct cx25821_buffer *buf; | |
167 | ||
f2466d63 | 168 | if (cx25821_res_check(fh, RESOURCE_VIDEO0)) { |
1a9fc855 MCC |
169 | /* streaming capture */ |
170 | if (list_empty(&fh->vidq.stream)) | |
171 | return POLLERR; | |
172 | buf = list_entry(fh->vidq.stream.next, | |
173 | struct cx25821_buffer, vb.stream); | |
174 | } else { | |
175 | /* read() capture */ | |
176 | buf = (struct cx25821_buffer *)fh->vidq.read_buf; | |
177 | if (NULL == buf) | |
178 | return POLLERR; | |
bb4c9a74 MCC |
179 | } |
180 | ||
1a9fc855 MCC |
181 | poll_wait(file, &buf->vb.done, wait); |
182 | if (buf->vb.state == VIDEOBUF_DONE || buf->vb.state == VIDEOBUF_ERROR) { | |
183 | if (buf->vb.state == VIDEOBUF_DONE) { | |
184 | struct cx25821_dev *dev = fh->dev; | |
185 | ||
186 | if (dev && dev->use_cif_resolution[SRAM_CH00]) { | |
187 | u8 cam_id = *((char *)buf->vb.baddr + 3); | |
188 | memcpy((char *)buf->vb.baddr, | |
189 | (char *)buf->vb.baddr + (fh->width * 2), | |
190 | (fh->width * 2)); | |
191 | *((char *)buf->vb.baddr + 3) = cam_id; | |
192 | } | |
193 | } | |
194 | ||
195 | return POLLIN | POLLRDNORM; | |
196 | } | |
bb4c9a74 | 197 | |
1a9fc855 | 198 | return 0; |
02b20b0b MCC |
199 | } |
200 | ||
02b20b0b MCC |
201 | static int video_release(struct file *file) |
202 | { | |
1a9fc855 MCC |
203 | struct cx25821_fh *fh = file->private_data; |
204 | struct cx25821_dev *dev = fh->dev; | |
02b20b0b | 205 | |
1a9fc855 MCC |
206 | //stop the risc engine and fifo |
207 | cx_write(channel0->dma_ctl, 0); /* FIFO and RISC disable */ | |
02b20b0b | 208 | |
1a9fc855 | 209 | /* stop video capture */ |
f2466d63 | 210 | if (cx25821_res_check(fh, RESOURCE_VIDEO0)) { |
1a9fc855 | 211 | videobuf_queue_cancel(&fh->vidq); |
f2466d63 | 212 | cx25821_res_free(dev, fh, RESOURCE_VIDEO0); |
1a9fc855 | 213 | } |
02b20b0b | 214 | |
1a9fc855 | 215 | if (fh->vidq.read_buf) { |
f2466d63 | 216 | cx25821_buffer_release(&fh->vidq, fh->vidq.read_buf); |
1a9fc855 MCC |
217 | kfree(fh->vidq.read_buf); |
218 | } | |
02b20b0b | 219 | |
1a9fc855 | 220 | videobuf_mmap_free(&fh->vidq); |
02b20b0b | 221 | |
ffb4877b | 222 | v4l2_prio_close(&dev->prio, fh->prio); |
1a9fc855 MCC |
223 | file->private_data = NULL; |
224 | kfree(fh); | |
02b20b0b | 225 | |
1a9fc855 | 226 | return 0; |
02b20b0b MCC |
227 | } |
228 | ||
02b20b0b MCC |
229 | static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) |
230 | { | |
1a9fc855 MCC |
231 | struct cx25821_fh *fh = priv; |
232 | struct cx25821_dev *dev = fh->dev; | |
02b20b0b | 233 | |
1a9fc855 MCC |
234 | if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)) { |
235 | return -EINVAL; | |
236 | } | |
02b20b0b | 237 | |
1a9fc855 MCC |
238 | if (unlikely(i != fh->type)) { |
239 | return -EINVAL; | |
240 | } | |
02b20b0b | 241 | |
f2466d63 | 242 | if (unlikely(!cx25821_res_get(dev, fh, cx25821_get_resource(fh, RESOURCE_VIDEO0)))) { |
1a9fc855 MCC |
243 | return -EBUSY; |
244 | } | |
02b20b0b | 245 | |
1a9fc855 | 246 | return videobuf_streamon(get_queue(fh)); |
02b20b0b MCC |
247 | } |
248 | ||
249 | static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) | |
250 | { | |
1a9fc855 MCC |
251 | struct cx25821_fh *fh = priv; |
252 | struct cx25821_dev *dev = fh->dev; | |
253 | int err, res; | |
254 | ||
255 | if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
256 | return -EINVAL; | |
257 | if (i != fh->type) | |
258 | return -EINVAL; | |
259 | ||
f2466d63 | 260 | res = cx25821_get_resource(fh, RESOURCE_VIDEO0); |
1a9fc855 MCC |
261 | err = videobuf_streamoff(get_queue(fh)); |
262 | if (err < 0) | |
263 | return err; | |
f2466d63 | 264 | cx25821_res_free(dev, fh, res); |
1a9fc855 | 265 | return 0; |
02b20b0b MCC |
266 | } |
267 | ||
1a9fc855 MCC |
268 | static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, |
269 | struct v4l2_format *f) | |
02b20b0b | 270 | { |
1a9fc855 MCC |
271 | struct cx25821_fh *fh = priv; |
272 | struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev; | |
273 | int err; | |
274 | int pix_format = PIXEL_FRMT_422; | |
275 | ||
276 | if (fh) { | |
ffb4877b | 277 | err = v4l2_prio_check(&dev->prio, fh->prio); |
1a9fc855 MCC |
278 | if (0 != err) |
279 | return err; | |
280 | } | |
281 | ||
282 | dprintk(2, "%s()\n", __func__); | |
f2466d63 | 283 | err = cx25821_vidioc_try_fmt_vid_cap(file, priv, f); |
1a9fc855 | 284 | |
bb4c9a74 | 285 | if (0 != err) |
1a9fc855 MCC |
286 | return err; |
287 | ||
288 | fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat); | |
289 | fh->vidq.field = f->fmt.pix.field; | |
290 | ||
291 | // check if width and height is valid based on set standard | |
f2466d63 | 292 | if (cx25821_is_valid_width(f->fmt.pix.width, dev->tvnorm)) { |
1a9fc855 MCC |
293 | fh->width = f->fmt.pix.width; |
294 | } | |
295 | ||
f2466d63 | 296 | if (cx25821_is_valid_height(f->fmt.pix.height, dev->tvnorm)) { |
1a9fc855 MCC |
297 | fh->height = f->fmt.pix.height; |
298 | } | |
299 | ||
300 | if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_Y41P) | |
301 | pix_format = PIXEL_FRMT_411; | |
302 | else if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV) | |
303 | pix_format = PIXEL_FRMT_422; | |
304 | else | |
305 | return -EINVAL; | |
306 | ||
307 | cx25821_set_pixel_format(dev, SRAM_CH00, pix_format); | |
308 | ||
309 | // check if cif resolution | |
310 | if (fh->width == 320 || fh->width == 352) { | |
311 | dev->use_cif_resolution[SRAM_CH00] = 1; | |
312 | } else { | |
313 | dev->use_cif_resolution[SRAM_CH00] = 0; | |
314 | } | |
315 | dev->cif_width[SRAM_CH00] = fh->width; | |
316 | medusa_set_resolution(dev, fh->width, SRAM_CH00); | |
317 | ||
318 | dprintk(2, "%s() width=%d height=%d field=%d\n", __func__, fh->width, | |
319 | fh->height, fh->vidq.field); | |
320 | cx25821_call_all(dev, video, s_fmt, f); | |
321 | ||
322 | return 0; | |
02b20b0b MCC |
323 | } |
324 | ||
325 | static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p) | |
326 | { | |
1a9fc855 MCC |
327 | int ret_val = 0; |
328 | struct cx25821_fh *fh = priv; | |
329 | struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev; | |
02b20b0b | 330 | |
1a9fc855 | 331 | ret_val = videobuf_dqbuf(get_queue(fh), p, file->f_flags & O_NONBLOCK); |
02b20b0b | 332 | |
1a9fc855 | 333 | p->sequence = dev->vidq[SRAM_CH00].count; |
02b20b0b | 334 | |
1a9fc855 | 335 | return ret_val; |
02b20b0b MCC |
336 | } |
337 | ||
1a9fc855 | 338 | static int vidioc_log_status(struct file *file, void *priv) |
02b20b0b | 339 | { |
1a9fc855 MCC |
340 | struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev; |
341 | char name[32 + 2]; | |
02b20b0b | 342 | |
1a9fc855 MCC |
343 | struct sram_channel *sram_ch = &dev->sram_channels[SRAM_CH00]; |
344 | u32 tmp = 0; | |
02b20b0b | 345 | |
1a9fc855 MCC |
346 | snprintf(name, sizeof(name), "%s/2", dev->name); |
347 | printk(KERN_INFO "%s/2: ============ START LOG STATUS ============\n", | |
02b20b0b | 348 | dev->name); |
1a9fc855 MCC |
349 | cx25821_call_all(dev, core, log_status); |
350 | tmp = cx_read(sram_ch->dma_ctl); | |
351 | printk(KERN_INFO "Video input 0 is %s\n", | |
352 | (tmp & 0x11) ? "streaming" : "stopped"); | |
353 | printk(KERN_INFO "%s/2: ============= END LOG STATUS =============\n", | |
02b20b0b | 354 | dev->name); |
1a9fc855 | 355 | return 0; |
02b20b0b MCC |
356 | } |
357 | ||
358 | static int vidioc_s_ctrl(struct file *file, void *priv, | |
1a9fc855 | 359 | struct v4l2_control *ctl) |
02b20b0b MCC |
360 | { |
361 | struct cx25821_fh *fh = priv; | |
bb4c9a74 MCC |
362 | struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev; |
363 | int err; | |
02b20b0b | 364 | |
bb4c9a74 | 365 | if (fh) { |
ffb4877b | 366 | err = v4l2_prio_check(&dev->prio, fh->prio); |
02b20b0b MCC |
367 | if (0 != err) |
368 | return err; | |
369 | } | |
370 | ||
371 | return cx25821_set_control(dev, ctl, SRAM_CH00); | |
372 | } | |
373 | ||
374 | // exported stuff | |
375 | static const struct v4l2_file_operations video_fops = { | |
1a9fc855 MCC |
376 | .owner = THIS_MODULE, |
377 | .open = video_open, | |
378 | .release = video_release, | |
379 | .read = video_read, | |
380 | .poll = video_poll, | |
f2466d63 | 381 | .mmap = cx25821_video_mmap, |
1a9fc855 | 382 | .ioctl = video_ioctl2, |
02b20b0b MCC |
383 | }; |
384 | ||
385 | static const struct v4l2_ioctl_ops video_ioctl_ops = { | |
f2466d63 MCC |
386 | .vidioc_querycap = cx25821_vidioc_querycap, |
387 | .vidioc_enum_fmt_vid_cap = cx25821_vidioc_enum_fmt_vid_cap, | |
388 | .vidioc_g_fmt_vid_cap = cx25821_vidioc_g_fmt_vid_cap, | |
389 | .vidioc_try_fmt_vid_cap = cx25821_vidioc_try_fmt_vid_cap, | |
1a9fc855 | 390 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, |
f2466d63 MCC |
391 | .vidioc_reqbufs = cx25821_vidioc_reqbufs, |
392 | .vidioc_querybuf = cx25821_vidioc_querybuf, | |
393 | .vidioc_qbuf = cx25821_vidioc_qbuf, | |
1a9fc855 | 394 | .vidioc_dqbuf = vidioc_dqbuf, |
02b20b0b | 395 | #ifdef TUNER_FLAG |
f2466d63 MCC |
396 | .vidioc_s_std = cx25821_vidioc_s_std, |
397 | .vidioc_querystd = cx25821_vidioc_querystd, | |
02b20b0b | 398 | #endif |
f2466d63 MCC |
399 | .vidioc_cropcap = cx25821_vidioc_cropcap, |
400 | .vidioc_s_crop = cx25821_vidioc_s_crop, | |
401 | .vidioc_g_crop = cx25821_vidioc_g_crop, | |
402 | .vidioc_enum_input = cx25821_vidioc_enum_input, | |
403 | .vidioc_g_input = cx25821_vidioc_g_input, | |
404 | .vidioc_s_input = cx25821_vidioc_s_input, | |
405 | .vidioc_g_ctrl = cx25821_vidioc_g_ctrl, | |
1a9fc855 | 406 | .vidioc_s_ctrl = vidioc_s_ctrl, |
f2466d63 | 407 | .vidioc_queryctrl = cx25821_vidioc_queryctrl, |
1a9fc855 MCC |
408 | .vidioc_streamon = vidioc_streamon, |
409 | .vidioc_streamoff = vidioc_streamoff, | |
410 | .vidioc_log_status = vidioc_log_status, | |
f2466d63 MCC |
411 | .vidioc_g_priority = cx25821_vidioc_g_priority, |
412 | .vidioc_s_priority = cx25821_vidioc_s_priority, | |
02b20b0b | 413 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
f2466d63 | 414 | .vidiocgmbuf = cx25821_vidiocgmbuf, |
02b20b0b MCC |
415 | #endif |
416 | #ifdef TUNER_FLAG | |
f2466d63 MCC |
417 | .vidioc_g_tuner = cx25821_vidioc_g_tuner, |
418 | .vidioc_s_tuner = cx25821_vidioc_s_tuner, | |
419 | .vidioc_g_frequency = cx25821_vidioc_g_frequency, | |
420 | .vidioc_s_frequency = cx25821_vidioc_s_frequency, | |
02b20b0b MCC |
421 | #endif |
422 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
f2466d63 MCC |
423 | .vidioc_g_register = cx25821_vidioc_g_register, |
424 | .vidioc_s_register = cx25821_vidioc_s_register, | |
02b20b0b MCC |
425 | #endif |
426 | }; | |
427 | ||
428 | struct video_device cx25821_video_template0 = { | |
1a9fc855 MCC |
429 | .name = "cx25821-video", |
430 | .fops = &video_fops, | |
1a9fc855 MCC |
431 | .ioctl_ops = &video_ioctl_ops, |
432 | .tvnorms = CX25821_NORMS, | |
433 | .current_norm = V4L2_STD_NTSC_M, | |
02b20b0b | 434 | }; |