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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 | ||
5a0e3ad6 TH |
24 | #include <linux/slab.h> |
25 | ||
02b20b0b MCC |
26 | #include "cx25821-video.h" |
27 | ||
02b20b0b MCC |
28 | static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) |
29 | { | |
1a9fc855 MCC |
30 | struct cx25821_buffer *buf = |
31 | container_of(vb, struct cx25821_buffer, vb); | |
32 | struct cx25821_buffer *prev; | |
33 | struct cx25821_fh *fh = vq->priv_data; | |
34 | struct cx25821_dev *dev = fh->dev; | |
35 | struct cx25821_dmaqueue *q = &dev->vidq[SRAM_CH11]; | |
36 | ||
37 | /* add jump to stopper */ | |
38 | buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC); | |
39 | buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma); | |
40 | buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */ | |
41 | ||
42 | dprintk(2, "jmp to stopper (0x%x)\n", buf->risc.jmp[1]); | |
43 | ||
44 | if (!list_empty(&q->queued)) { | |
45 | list_add_tail(&buf->vb.queue, &q->queued); | |
46 | buf->vb.state = VIDEOBUF_QUEUED; | |
47 | dprintk(2, "[%p/%d] buffer_queue - append to queued\n", buf, | |
48 | buf->vb.i); | |
49 | ||
50 | } else if (list_empty(&q->active)) { | |
51 | list_add_tail(&buf->vb.queue, &q->active); | |
52 | cx25821_start_video_dma(dev, q, buf, | |
53 | &dev->sram_channels[SRAM_CH11]); | |
54 | buf->vb.state = VIDEOBUF_ACTIVE; | |
55 | buf->count = q->count++; | |
56 | mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT); | |
57 | dprintk(2, | |
58 | "[%p/%d] buffer_queue - first active, buf cnt = %d, q->count = %d\n", | |
59 | buf, buf->vb.i, buf->count, q->count); | |
bb4c9a74 | 60 | } else { |
1a9fc855 MCC |
61 | prev = |
62 | list_entry(q->active.prev, struct cx25821_buffer, vb.queue); | |
63 | if (prev->vb.width == buf->vb.width | |
64 | && prev->vb.height == buf->vb.height | |
65 | && prev->fmt == buf->fmt) { | |
66 | list_add_tail(&buf->vb.queue, &q->active); | |
67 | buf->vb.state = VIDEOBUF_ACTIVE; | |
68 | buf->count = q->count++; | |
69 | prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma); | |
70 | ||
71 | /* 64 bit bits 63-32 */ | |
72 | prev->risc.jmp[2] = cpu_to_le32(0); | |
73 | dprintk(2, | |
74 | "[%p/%d] buffer_queue - append to active, buf->count=%d\n", | |
75 | buf, buf->vb.i, buf->count); | |
76 | ||
77 | } else { | |
78 | list_add_tail(&buf->vb.queue, &q->queued); | |
79 | buf->vb.state = VIDEOBUF_QUEUED; | |
80 | dprintk(2, "[%p/%d] buffer_queue - first queued\n", buf, | |
81 | buf->vb.i); | |
82 | } | |
bb4c9a74 | 83 | } |
02b20b0b | 84 | |
1a9fc855 MCC |
85 | if (list_empty(&q->active)) { |
86 | dprintk(2, "active queue empty!\n"); | |
87 | } | |
02b20b0b MCC |
88 | } |
89 | ||
02b20b0b | 90 | static struct videobuf_queue_ops cx25821_video_qops = { |
1a9fc855 MCC |
91 | .buf_setup = buffer_setup, |
92 | .buf_prepare = buffer_prepare, | |
93 | .buf_queue = buffer_queue, | |
94 | .buf_release = buffer_release, | |
02b20b0b MCC |
95 | }; |
96 | ||
02b20b0b MCC |
97 | static int video_open(struct file *file) |
98 | { | |
50462eb0 | 99 | struct video_device *vdev = video_devdata(file); |
63b0d5ad | 100 | struct cx25821_dev *dev = video_drvdata(file); |
1a9fc855 | 101 | struct cx25821_fh *fh; |
63b0d5ad | 102 | enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
02b20b0b | 103 | |
50462eb0 LP |
104 | printk("open dev=%s type=%s\n", video_device_node_name(vdev), |
105 | v4l2_type_names[type]); | |
02b20b0b | 106 | |
1a9fc855 MCC |
107 | /* allocate + initialize per filehandle data */ |
108 | fh = kzalloc(sizeof(*fh), GFP_KERNEL); | |
63b0d5ad | 109 | if (NULL == fh) |
1a9fc855 | 110 | return -ENOMEM; |
63b0d5ad LP |
111 | |
112 | lock_kernel(); | |
02b20b0b | 113 | |
1a9fc855 MCC |
114 | file->private_data = fh; |
115 | fh->dev = dev; | |
116 | fh->type = type; | |
117 | fh->width = 720; | |
02b20b0b | 118 | |
1a9fc855 MCC |
119 | if (dev->tvnorm & V4L2_STD_PAL_BG || dev->tvnorm & V4L2_STD_PAL_DK) |
120 | fh->height = 576; | |
121 | else | |
122 | fh->height = 480; | |
bb4c9a74 | 123 | |
1a9fc855 MCC |
124 | dev->channel_opened = 10; |
125 | fh->fmt = format_by_fourcc(V4L2_PIX_FMT_YUYV); | |
02b20b0b | 126 | |
1a9fc855 | 127 | v4l2_prio_open(&dev->prio, &fh->prio); |
02b20b0b | 128 | |
1a9fc855 MCC |
129 | videobuf_queue_sg_init(&fh->vidq, &cx25821_video_qops, |
130 | &dev->pci->dev, &dev->slock, | |
131 | V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
132 | V4L2_FIELD_INTERLACED, | |
133 | sizeof(struct cx25821_buffer), fh); | |
02b20b0b | 134 | |
1a9fc855 MCC |
135 | dprintk(1, "post videobuf_queue_init()\n"); |
136 | unlock_kernel(); | |
02b20b0b | 137 | |
1a9fc855 | 138 | return 0; |
02b20b0b MCC |
139 | } |
140 | ||
1a9fc855 MCC |
141 | static ssize_t video_read(struct file *file, char __user * data, size_t count, |
142 | loff_t * ppos) | |
02b20b0b | 143 | { |
1a9fc855 | 144 | struct cx25821_fh *fh = file->private_data; |
02b20b0b | 145 | |
1a9fc855 | 146 | switch (fh->type) { |
bb4c9a74 | 147 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
1a9fc855 MCC |
148 | if (res_locked(fh->dev, RESOURCE_VIDEO11)) |
149 | return -EBUSY; | |
02b20b0b | 150 | |
1a9fc855 MCC |
151 | return videobuf_read_one(&fh->vidq, data, count, ppos, |
152 | file->f_flags & O_NONBLOCK); | |
02b20b0b | 153 | |
bb4c9a74 | 154 | default: |
1a9fc855 MCC |
155 | BUG(); |
156 | return 0; | |
157 | } | |
02b20b0b MCC |
158 | } |
159 | ||
1a9fc855 MCC |
160 | static unsigned int video_poll(struct file *file, |
161 | struct poll_table_struct *wait) | |
02b20b0b | 162 | { |
1a9fc855 MCC |
163 | struct cx25821_fh *fh = file->private_data; |
164 | struct cx25821_buffer *buf; | |
165 | ||
166 | if (res_check(fh, RESOURCE_VIDEO11)) { | |
167 | /* streaming capture */ | |
168 | if (list_empty(&fh->vidq.stream)) | |
169 | return POLLERR; | |
170 | buf = list_entry(fh->vidq.stream.next, | |
171 | struct cx25821_buffer, vb.stream); | |
172 | } else { | |
173 | /* read() capture */ | |
174 | buf = (struct cx25821_buffer *)fh->vidq.read_buf; | |
175 | if (NULL == buf) | |
176 | return POLLERR; | |
177 | } | |
02b20b0b | 178 | |
1a9fc855 MCC |
179 | poll_wait(file, &buf->vb.done, wait); |
180 | if (buf->vb.state == VIDEOBUF_DONE || buf->vb.state == VIDEOBUF_ERROR) | |
181 | return POLLIN | POLLRDNORM; | |
182 | return 0; | |
183 | } | |
02b20b0b MCC |
184 | |
185 | static int video_release(struct file *file) | |
186 | { | |
1a9fc855 MCC |
187 | struct cx25821_fh *fh = file->private_data; |
188 | struct cx25821_dev *dev = fh->dev; | |
02b20b0b | 189 | |
1a9fc855 MCC |
190 | //stop the risc engine and fifo |
191 | //cx_write(channel11->dma_ctl, 0); | |
02b20b0b | 192 | |
1a9fc855 MCC |
193 | /* stop video capture */ |
194 | if (res_check(fh, RESOURCE_VIDEO11)) { | |
195 | videobuf_queue_cancel(&fh->vidq); | |
196 | res_free(dev, fh, RESOURCE_VIDEO11); | |
197 | } | |
02b20b0b | 198 | |
1a9fc855 MCC |
199 | if (fh->vidq.read_buf) { |
200 | buffer_release(&fh->vidq, fh->vidq.read_buf); | |
201 | kfree(fh->vidq.read_buf); | |
202 | } | |
02b20b0b | 203 | |
1a9fc855 | 204 | videobuf_mmap_free(&fh->vidq); |
02b20b0b | 205 | |
1a9fc855 | 206 | v4l2_prio_close(&dev->prio, &fh->prio); |
02b20b0b | 207 | |
1a9fc855 MCC |
208 | file->private_data = NULL; |
209 | kfree(fh); | |
02b20b0b | 210 | |
1a9fc855 | 211 | return 0; |
02b20b0b MCC |
212 | } |
213 | ||
02b20b0b MCC |
214 | static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) |
215 | { | |
1a9fc855 MCC |
216 | struct cx25821_fh *fh = priv; |
217 | struct cx25821_dev *dev = fh->dev; | |
02b20b0b | 218 | |
1a9fc855 MCC |
219 | if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)) { |
220 | return -EINVAL; | |
221 | } | |
02b20b0b | 222 | |
1a9fc855 MCC |
223 | if (unlikely(i != fh->type)) { |
224 | return -EINVAL; | |
225 | } | |
02b20b0b | 226 | |
1a9fc855 MCC |
227 | if (unlikely(!res_get(dev, fh, get_resource(fh, RESOURCE_VIDEO11)))) { |
228 | return -EBUSY; | |
229 | } | |
02b20b0b | 230 | |
1a9fc855 | 231 | return videobuf_streamon(get_queue(fh)); |
02b20b0b MCC |
232 | } |
233 | ||
234 | static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) | |
235 | { | |
1a9fc855 MCC |
236 | struct cx25821_fh *fh = priv; |
237 | struct cx25821_dev *dev = fh->dev; | |
238 | int err, res; | |
239 | ||
240 | if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
241 | return -EINVAL; | |
242 | if (i != fh->type) | |
243 | return -EINVAL; | |
244 | ||
245 | res = get_resource(fh, RESOURCE_VIDEO11); | |
246 | err = videobuf_streamoff(get_queue(fh)); | |
247 | if (err < 0) | |
248 | return err; | |
249 | res_free(dev, fh, res); | |
250 | return 0; | |
02b20b0b MCC |
251 | } |
252 | ||
1a9fc855 MCC |
253 | static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, |
254 | struct v4l2_format *f) | |
02b20b0b | 255 | { |
1a9fc855 MCC |
256 | struct cx25821_fh *fh = priv; |
257 | struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev; | |
258 | int err; | |
259 | ||
260 | if (fh) { | |
261 | err = v4l2_prio_check(&dev->prio, &fh->prio); | |
262 | if (0 != err) | |
263 | return err; | |
264 | } | |
265 | ||
266 | dprintk(2, "%s()\n", __func__); | |
267 | err = vidioc_try_fmt_vid_cap(file, priv, f); | |
02b20b0b | 268 | |
bb4c9a74 | 269 | if (0 != err) |
1a9fc855 MCC |
270 | return err; |
271 | fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat); | |
272 | fh->width = f->fmt.pix.width; | |
273 | fh->height = f->fmt.pix.height; | |
274 | fh->vidq.field = f->fmt.pix.field; | |
275 | dprintk(2, "%s() width=%d height=%d field=%d\n", __func__, fh->width, | |
276 | fh->height, fh->vidq.field); | |
277 | cx25821_call_all(dev, video, s_fmt, f); | |
278 | return 0; | |
02b20b0b MCC |
279 | } |
280 | ||
1a9fc855 MCC |
281 | static long video_ioctl_upstream11(struct file *file, unsigned int cmd, |
282 | unsigned long arg) | |
bb4c9a74 | 283 | { |
1a9fc855 MCC |
284 | struct cx25821_fh *fh = file->private_data; |
285 | struct cx25821_dev *dev = fh->dev; | |
286 | int command = 0; | |
287 | struct upstream_user_struct *data_from_user; | |
288 | ||
289 | data_from_user = (struct upstream_user_struct *)arg; | |
290 | ||
291 | if (!data_from_user) { | |
292 | printk | |
293 | ("cx25821 in %s(): Upstream data is INVALID. Returning.\n", | |
294 | __func__); | |
295 | return 0; | |
296 | } | |
bb4c9a74 | 297 | |
1a9fc855 | 298 | command = data_from_user->command; |
bb4c9a74 | 299 | |
1a9fc855 MCC |
300 | if (command != UPSTREAM_START_AUDIO && command != UPSTREAM_STOP_AUDIO) { |
301 | return 0; | |
302 | } | |
02b20b0b | 303 | |
1a9fc855 MCC |
304 | dev->input_filename = data_from_user->input_filename; |
305 | dev->input_audiofilename = data_from_user->input_filename; | |
306 | dev->vid_stdname = data_from_user->vid_stdname; | |
307 | dev->pixel_format = data_from_user->pixel_format; | |
308 | dev->channel_select = data_from_user->channel_select; | |
309 | dev->command = data_from_user->command; | |
bb4c9a74 | 310 | |
1a9fc855 | 311 | switch (command) { |
bb4c9a74 | 312 | case UPSTREAM_START_AUDIO: |
1a9fc855 MCC |
313 | cx25821_start_upstream_audio(dev, data_from_user); |
314 | break; | |
bb4c9a74 MCC |
315 | |
316 | case UPSTREAM_STOP_AUDIO: | |
1a9fc855 MCC |
317 | cx25821_stop_upstream_audio(dev); |
318 | break; | |
319 | } | |
bb4c9a74 | 320 | |
1a9fc855 | 321 | return 0; |
02b20b0b MCC |
322 | } |
323 | ||
324 | static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p) | |
325 | { | |
1a9fc855 MCC |
326 | struct cx25821_fh *fh = priv; |
327 | return videobuf_dqbuf(get_queue(fh), p, file->f_flags & O_NONBLOCK); | |
02b20b0b MCC |
328 | } |
329 | ||
1a9fc855 | 330 | static int vidioc_log_status(struct file *file, void *priv) |
02b20b0b | 331 | { |
1a9fc855 MCC |
332 | struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev; |
333 | char name[32 + 2]; | |
02b20b0b | 334 | |
1a9fc855 MCC |
335 | snprintf(name, sizeof(name), "%s/2", dev->name); |
336 | printk(KERN_INFO "%s/2: ============ START LOG STATUS ============\n", | |
02b20b0b | 337 | dev->name); |
1a9fc855 MCC |
338 | cx25821_call_all(dev, core, log_status); |
339 | printk(KERN_INFO "%s/2: ============= END LOG STATUS =============\n", | |
02b20b0b | 340 | dev->name); |
1a9fc855 | 341 | return 0; |
02b20b0b MCC |
342 | } |
343 | ||
344 | static int vidioc_s_ctrl(struct file *file, void *priv, | |
1a9fc855 | 345 | struct v4l2_control *ctl) |
02b20b0b | 346 | { |
1a9fc855 | 347 | struct cx25821_fh *fh = priv; |
c424d46f | 348 | struct cx25821_dev *dev; |
1a9fc855 MCC |
349 | int err; |
350 | ||
351 | if (fh) { | |
c424d46f | 352 | dev = fh->dev; |
1a9fc855 MCC |
353 | err = v4l2_prio_check(&dev->prio, &fh->prio); |
354 | if (0 != err) | |
355 | return err; | |
356 | } | |
357 | return 0; | |
02b20b0b | 358 | } |
1a9fc855 | 359 | |
02b20b0b MCC |
360 | // exported stuff |
361 | static const struct v4l2_file_operations video_fops = { | |
1a9fc855 MCC |
362 | .owner = THIS_MODULE, |
363 | .open = video_open, | |
364 | .release = video_release, | |
365 | .read = video_read, | |
366 | .poll = video_poll, | |
367 | .mmap = video_mmap, | |
368 | .ioctl = video_ioctl_upstream11, | |
02b20b0b MCC |
369 | }; |
370 | ||
371 | static const struct v4l2_ioctl_ops video_ioctl_ops = { | |
1a9fc855 MCC |
372 | .vidioc_querycap = vidioc_querycap, |
373 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, | |
374 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, | |
375 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, | |
376 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, | |
377 | .vidioc_reqbufs = vidioc_reqbufs, | |
378 | .vidioc_querybuf = vidioc_querybuf, | |
379 | .vidioc_qbuf = vidioc_qbuf, | |
380 | .vidioc_dqbuf = vidioc_dqbuf, | |
02b20b0b | 381 | #ifdef TUNER_FLAG |
1a9fc855 MCC |
382 | .vidioc_s_std = vidioc_s_std, |
383 | .vidioc_querystd = vidioc_querystd, | |
02b20b0b | 384 | #endif |
1a9fc855 MCC |
385 | .vidioc_cropcap = vidioc_cropcap, |
386 | .vidioc_s_crop = vidioc_s_crop, | |
387 | .vidioc_g_crop = vidioc_g_crop, | |
388 | .vidioc_enum_input = vidioc_enum_input, | |
389 | .vidioc_g_input = vidioc_g_input, | |
390 | .vidioc_s_input = vidioc_s_input, | |
391 | .vidioc_g_ctrl = vidioc_g_ctrl, | |
392 | .vidioc_s_ctrl = vidioc_s_ctrl, | |
393 | .vidioc_queryctrl = vidioc_queryctrl, | |
394 | .vidioc_streamon = vidioc_streamon, | |
395 | .vidioc_streamoff = vidioc_streamoff, | |
396 | .vidioc_log_status = vidioc_log_status, | |
397 | .vidioc_g_priority = vidioc_g_priority, | |
398 | .vidioc_s_priority = vidioc_s_priority, | |
02b20b0b | 399 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
1a9fc855 | 400 | .vidiocgmbuf = vidiocgmbuf, |
02b20b0b MCC |
401 | #endif |
402 | #ifdef TUNER_FLAG | |
1a9fc855 MCC |
403 | .vidioc_g_tuner = vidioc_g_tuner, |
404 | .vidioc_s_tuner = vidioc_s_tuner, | |
405 | .vidioc_g_frequency = vidioc_g_frequency, | |
406 | .vidioc_s_frequency = vidioc_s_frequency, | |
02b20b0b MCC |
407 | #endif |
408 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1a9fc855 MCC |
409 | .vidioc_g_register = vidioc_g_register, |
410 | .vidioc_s_register = vidioc_s_register, | |
02b20b0b MCC |
411 | #endif |
412 | }; | |
413 | ||
414 | struct video_device cx25821_video_template11 = { | |
1a9fc855 MCC |
415 | .name = "cx25821-audioupstream", |
416 | .fops = &video_fops, | |
1a9fc855 MCC |
417 | .ioctl_ops = &video_ioctl_ops, |
418 | .tvnorms = CX25821_NORMS, | |
419 | .current_norm = V4L2_STD_NTSC_M, | |
02b20b0b | 420 | }; |