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24#include "cx25821-video.h"
25
26static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
27{
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_CH09];
34
35
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);
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_CH09]);
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);
58 } else {
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
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 }
81 }
82
83 if (list_empty(&q->active)) {
84 dprintk(2, "active queue empty!\n");
85 }
86}
87
88static struct videobuf_queue_ops cx25821_video_qops = {
89 .buf_setup = buffer_setup,
90 .buf_prepare = buffer_prepare,
91 .buf_queue = buffer_queue,
92 .buf_release = buffer_release,
93};
94
95static int video_open(struct file *file)
96{
97 int minor = video_devdata(file)->minor;
98 struct cx25821_dev *h, *dev = NULL;
99 struct cx25821_fh *fh;
100 struct list_head *list;
101 enum v4l2_buf_type type = 0;
102
103 lock_kernel();
104 list_for_each(list, &cx25821_devlist) {
105 h = list_entry(list, struct cx25821_dev, devlist);
106
107 if (h->video_dev[SRAM_CH09]
108 && h->video_dev[SRAM_CH09]->minor == minor) {
109 dev = h;
110 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
111 }
112 }
113
114 if (NULL == dev) {
115 unlock_kernel();
116 return -ENODEV;
117 }
118
119 printk("open minor=%d type=%s\n", minor, v4l2_type_names[type]);
120
121
122 fh = kzalloc(sizeof(*fh), GFP_KERNEL);
123 if (NULL == fh) {
124 unlock_kernel();
125 return -ENOMEM;
126 }
127
128 file->private_data = fh;
129 fh->dev = dev;
130 fh->type = type;
131 fh->width = 720;
132
133 if (dev->tvnorm & V4L2_STD_PAL_BG || dev->tvnorm & V4L2_STD_PAL_DK)
134 fh->height = 576;
135 else
136 fh->height = 480;
137
138 dev->channel_opened = 8;
139 fh->fmt = format_by_fourcc(V4L2_PIX_FMT_YUYV);
140
141 v4l2_prio_open(&dev->prio, &fh->prio);
142
143 videobuf_queue_sg_init(&fh->vidq, &cx25821_video_qops,
144 &dev->pci->dev, &dev->slock,
145 V4L2_BUF_TYPE_VIDEO_CAPTURE,
146 V4L2_FIELD_INTERLACED,
147 sizeof(struct cx25821_buffer), fh);
148
149 dprintk(1, "post videobuf_queue_init()\n");
150 unlock_kernel();
151
152 return 0;
153}
154
155static ssize_t video_read(struct file *file, char __user * data, size_t count,
156 loff_t * ppos)
157{
158 struct cx25821_fh *fh = file->private_data;
159
160 switch (fh->type) {
161 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
162 if (res_locked(fh->dev, RESOURCE_VIDEO9))
163 return -EBUSY;
164
165 return videobuf_read_one(&fh->vidq, data, count, ppos,
166 file->f_flags & O_NONBLOCK);
167
168 default:
169 BUG();
170 return 0;
171 }
172}
173
174static unsigned int video_poll(struct file *file,
175 struct poll_table_struct *wait)
176{
177 struct cx25821_fh *fh = file->private_data;
178 struct cx25821_buffer *buf;
179
180 if (res_check(fh, RESOURCE_VIDEO9)) {
181
182 if (list_empty(&fh->vidq.stream))
183 return POLLERR;
184 buf = list_entry(fh->vidq.stream.next,
185 struct cx25821_buffer, vb.stream);
186 } else {
187
188 buf = (struct cx25821_buffer *)fh->vidq.read_buf;
189 if (NULL == buf)
190 return POLLERR;
191 }
192
193 poll_wait(file, &buf->vb.done, wait);
194 if (buf->vb.state == VIDEOBUF_DONE || buf->vb.state == VIDEOBUF_ERROR)
195 return POLLIN | POLLRDNORM;
196 return 0;
197}
198
199static int video_release(struct file *file)
200{
201 struct cx25821_fh *fh = file->private_data;
202 struct cx25821_dev *dev = fh->dev;
203
204
205
206
207
208 if (res_check(fh, RESOURCE_VIDEO9)) {
209 videobuf_queue_cancel(&fh->vidq);
210 res_free(dev, fh, RESOURCE_VIDEO9);
211 }
212
213 if (fh->vidq.read_buf) {
214 buffer_release(&fh->vidq, fh->vidq.read_buf);
215 kfree(fh->vidq.read_buf);
216 }
217
218 videobuf_mmap_free(&fh->vidq);
219
220 v4l2_prio_close(&dev->prio, &fh->prio);
221
222 file->private_data = NULL;
223 kfree(fh);
224
225 return 0;
226}
227
228static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
229{
230 struct cx25821_fh *fh = priv;
231 struct cx25821_dev *dev = fh->dev;
232
233 if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)) {
234 return -EINVAL;
235 }
236
237 if (unlikely(i != fh->type)) {
238 return -EINVAL;
239 }
240
241 if (unlikely(!res_get(dev, fh, get_resource(fh, RESOURCE_VIDEO9)))) {
242 return -EBUSY;
243 }
244
245 return videobuf_streamon(get_queue(fh));
246}
247
248static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
249{
250 struct cx25821_fh *fh = priv;
251 struct cx25821_dev *dev = fh->dev;
252 int err, res;
253
254 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
255 return -EINVAL;
256 if (i != fh->type)
257 return -EINVAL;
258
259 res = get_resource(fh, RESOURCE_VIDEO9);
260 err = videobuf_streamoff(get_queue(fh));
261 if (err < 0)
262 return err;
263 res_free(dev, fh, res);
264 return 0;
265}
266
267static long video_ioctl_upstream9(struct file *file, unsigned int cmd,
268 unsigned long arg)
269{
270 struct cx25821_fh *fh = file->private_data;
271 struct cx25821_dev *dev = fh->dev;
272 int command = 0;
273 struct upstream_user_struct *data_from_user;
274
275 data_from_user = (struct upstream_user_struct *)arg;
276
277 if (!data_from_user) {
278 printk
279 ("cx25821 in %s(): Upstream data is INVALID. Returning.\n",
280 __func__);
281 return 0;
282 }
283
284 command = data_from_user->command;
285
286 if (command != UPSTREAM_START_VIDEO && command != UPSTREAM_STOP_VIDEO) {
287 return 0;
288 }
289
290 dev->input_filename = data_from_user->input_filename;
291 dev->input_audiofilename = data_from_user->input_filename;
292 dev->vid_stdname = data_from_user->vid_stdname;
293 dev->pixel_format = data_from_user->pixel_format;
294 dev->channel_select = data_from_user->channel_select;
295 dev->command = data_from_user->command;
296
297 switch (command) {
298 case UPSTREAM_START_VIDEO:
299 cx25821_start_upstream_video_ch1(dev, data_from_user);
300 break;
301
302 case UPSTREAM_STOP_VIDEO:
303 cx25821_stop_upstream_video_ch1(dev);
304 break;
305 }
306
307 return 0;
308}
309
310static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
311 struct v4l2_format *f)
312{
313 struct cx25821_fh *fh = priv;
314 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
315 int err;
316
317 if (fh) {
318 err = v4l2_prio_check(&dev->prio, &fh->prio);
319 if (0 != err)
320 return err;
321 }
322
323 dprintk(2, "%s()\n", __func__);
324 err = vidioc_try_fmt_vid_cap(file, priv, f);
325
326 if (0 != err)
327 return err;
328 fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
329 fh->width = f->fmt.pix.width;
330 fh->height = f->fmt.pix.height;
331 fh->vidq.field = f->fmt.pix.field;
332 dprintk(2, "%s() width=%d height=%d field=%d\n", __func__, fh->width,
333 fh->height, fh->vidq.field);
334 cx25821_call_all(dev, video, s_fmt, f);
335 return 0;
336}
337
338static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
339{
340 struct cx25821_fh *fh = priv;
341 return videobuf_dqbuf(get_queue(fh), p, file->f_flags & O_NONBLOCK);
342}
343static int vidioc_log_status(struct file *file, void *priv)
344{
345 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
346 char name[32 + 2];
347
348 snprintf(name, sizeof(name), "%s/2", dev->name);
349 printk(KERN_INFO "%s/2: ============ START LOG STATUS ============\n",
350 dev->name);
351 cx25821_call_all(dev, core, log_status);
352 printk(KERN_INFO "%s/2: ============= END LOG STATUS =============\n",
353 dev->name);
354 return 0;
355}
356
357static int vidioc_s_ctrl(struct file *file, void *priv,
358 struct v4l2_control *ctl)
359{
360 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
361 struct cx25821_fh *fh = priv;
362 int err;
363 if (fh) {
364 err = v4l2_prio_check(&dev->prio, &fh->prio);
365 if (0 != err)
366 return err;
367 }
368
369 return 0;
370}
371
372
373static const struct v4l2_file_operations video_fops = {
374 .owner = THIS_MODULE,
375 .open = video_open,
376 .release = video_release,
377 .read = video_read,
378 .poll = video_poll,
379 .mmap = video_mmap,
380 .ioctl = video_ioctl_upstream9,
381};
382
383static const struct v4l2_ioctl_ops video_ioctl_ops = {
384 .vidioc_querycap = vidioc_querycap,
385 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
386 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
387 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
388 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
389 .vidioc_reqbufs = vidioc_reqbufs,
390 .vidioc_querybuf = vidioc_querybuf,
391 .vidioc_qbuf = vidioc_qbuf,
392 .vidioc_dqbuf = vidioc_dqbuf,
393#ifdef TUNER_FLAG
394 .vidioc_s_std = vidioc_s_std,
395 .vidioc_querystd = vidioc_querystd,
396#endif
397 .vidioc_cropcap = vidioc_cropcap,
398 .vidioc_s_crop = vidioc_s_crop,
399 .vidioc_g_crop = vidioc_g_crop,
400 .vidioc_enum_input = vidioc_enum_input,
401 .vidioc_g_input = vidioc_g_input,
402 .vidioc_s_input = vidioc_s_input,
403 .vidioc_g_ctrl = vidioc_g_ctrl,
404 .vidioc_s_ctrl = vidioc_s_ctrl,
405 .vidioc_queryctrl = vidioc_queryctrl,
406 .vidioc_streamon = vidioc_streamon,
407 .vidioc_streamoff = vidioc_streamoff,
408 .vidioc_log_status = vidioc_log_status,
409 .vidioc_g_priority = vidioc_g_priority,
410 .vidioc_s_priority = vidioc_s_priority,
411#ifdef CONFIG_VIDEO_V4L1_COMPAT
412 .vidiocgmbuf = vidiocgmbuf,
413#endif
414#ifdef TUNER_FLAG
415 .vidioc_g_tuner = vidioc_g_tuner,
416 .vidioc_s_tuner = vidioc_s_tuner,
417 .vidioc_g_frequency = vidioc_g_frequency,
418 .vidioc_s_frequency = vidioc_s_frequency,
419#endif
420#ifdef CONFIG_VIDEO_ADV_DEBUG
421 .vidioc_g_register = vidioc_g_register,
422 .vidioc_s_register = vidioc_s_register,
423#endif
424};
425
426struct video_device cx25821_video_template9 = {
427 .name = "cx25821-upstream9",
428 .fops = &video_fops,
429 .minor = -1,
430 .ioctl_ops = &video_ioctl_ops,
431 .tvnorms = CX25821_NORMS,
432 .current_norm = V4L2_STD_NTSC_M,
433};
434
