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Commit | Line | Data |
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63b1a90d SJ |
1 | /* |
2 | * Analog Devices video capture driver | |
3 | * | |
4 | * Copyright (c) 2011 Analog Devices Inc. | |
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 version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
18 | */ | |
19 | ||
20 | #include <linux/completion.h> | |
21 | #include <linux/delay.h> | |
22 | #include <linux/errno.h> | |
23 | #include <linux/fs.h> | |
24 | #include <linux/i2c.h> | |
25 | #include <linux/init.h> | |
26 | #include <linux/interrupt.h> | |
27 | #include <linux/io.h> | |
28 | #include <linux/mm.h> | |
29 | #include <linux/module.h> | |
30 | #include <linux/platform_device.h> | |
31 | #include <linux/slab.h> | |
32 | #include <linux/time.h> | |
33 | #include <linux/types.h> | |
34 | ||
63b1a90d SJ |
35 | #include <media/v4l2-common.h> |
36 | #include <media/v4l2-ctrls.h> | |
37 | #include <media/v4l2-device.h> | |
38 | #include <media/v4l2-ioctl.h> | |
39 | #include <media/videobuf2-dma-contig.h> | |
40 | ||
41 | #include <asm/dma.h> | |
42 | ||
43 | #include <media/blackfin/bfin_capture.h> | |
44 | #include <media/blackfin/ppi.h> | |
45 | ||
46 | #define CAPTURE_DRV_NAME "bfin_capture" | |
63b1a90d SJ |
47 | |
48 | struct bcap_format { | |
49 | char *desc; | |
50 | u32 pixelformat; | |
27ffaeb0 | 51 | u32 mbus_code; |
63b1a90d | 52 | int bpp; /* bits per pixel */ |
45b82596 | 53 | int dlen; /* data length for ppi in bits */ |
63b1a90d SJ |
54 | }; |
55 | ||
56 | struct bcap_buffer { | |
57 | struct vb2_buffer vb; | |
58 | struct list_head list; | |
59 | }; | |
60 | ||
61 | struct bcap_device { | |
62 | /* capture device instance */ | |
63 | struct v4l2_device v4l2_dev; | |
64 | /* v4l2 control handler */ | |
65 | struct v4l2_ctrl_handler ctrl_handler; | |
66 | /* device node data */ | |
67 | struct video_device *video_dev; | |
68 | /* sub device instance */ | |
69 | struct v4l2_subdev *sd; | |
70 | /* capture config */ | |
71 | struct bfin_capture_config *cfg; | |
72 | /* ppi interface */ | |
73 | struct ppi_if *ppi; | |
74 | /* current input */ | |
75 | unsigned int cur_input; | |
76 | /* current selected standard */ | |
77 | v4l2_std_id std; | |
45b82596 SJ |
78 | /* current selected dv_timings */ |
79 | struct v4l2_dv_timings dv_timings; | |
63b1a90d SJ |
80 | /* used to store pixel format */ |
81 | struct v4l2_pix_format fmt; | |
82 | /* bits per pixel*/ | |
83 | int bpp; | |
45b82596 SJ |
84 | /* data length for ppi in bits */ |
85 | int dlen; | |
63b1a90d SJ |
86 | /* used to store sensor supported format */ |
87 | struct bcap_format *sensor_formats; | |
88 | /* number of sensor formats array */ | |
89 | int num_sensor_formats; | |
90 | /* pointing to current video buffer */ | |
91 | struct bcap_buffer *cur_frm; | |
63b1a90d SJ |
92 | /* buffer queue used in videobuf2 */ |
93 | struct vb2_queue buffer_queue; | |
94 | /* allocator-specific contexts for each plane */ | |
95 | struct vb2_alloc_ctx *alloc_ctx; | |
96 | /* queue of filled frames */ | |
97 | struct list_head dma_queue; | |
98 | /* used in videobuf2 callback */ | |
99 | spinlock_t lock; | |
100 | /* used to access capture device */ | |
101 | struct mutex mutex; | |
102 | /* used to wait ppi to complete one transfer */ | |
103 | struct completion comp; | |
104 | /* prepare to stop */ | |
105 | bool stop; | |
106 | }; | |
107 | ||
108 | struct bcap_fh { | |
109 | struct v4l2_fh fh; | |
110 | /* indicates whether this file handle is doing IO */ | |
111 | bool io_allowed; | |
112 | }; | |
113 | ||
114 | static const struct bcap_format bcap_formats[] = { | |
115 | { | |
116 | .desc = "YCbCr 4:2:2 Interleaved UYVY", | |
117 | .pixelformat = V4L2_PIX_FMT_UYVY, | |
27ffaeb0 | 118 | .mbus_code = MEDIA_BUS_FMT_UYVY8_2X8, |
63b1a90d | 119 | .bpp = 16, |
45b82596 | 120 | .dlen = 8, |
63b1a90d SJ |
121 | }, |
122 | { | |
123 | .desc = "YCbCr 4:2:2 Interleaved YUYV", | |
124 | .pixelformat = V4L2_PIX_FMT_YUYV, | |
27ffaeb0 | 125 | .mbus_code = MEDIA_BUS_FMT_YUYV8_2X8, |
63b1a90d | 126 | .bpp = 16, |
45b82596 SJ |
127 | .dlen = 8, |
128 | }, | |
129 | { | |
130 | .desc = "YCbCr 4:2:2 Interleaved UYVY", | |
131 | .pixelformat = V4L2_PIX_FMT_UYVY, | |
27ffaeb0 | 132 | .mbus_code = MEDIA_BUS_FMT_UYVY8_1X16, |
45b82596 SJ |
133 | .bpp = 16, |
134 | .dlen = 16, | |
63b1a90d SJ |
135 | }, |
136 | { | |
137 | .desc = "RGB 565", | |
138 | .pixelformat = V4L2_PIX_FMT_RGB565, | |
27ffaeb0 | 139 | .mbus_code = MEDIA_BUS_FMT_RGB565_2X8_LE, |
63b1a90d | 140 | .bpp = 16, |
45b82596 | 141 | .dlen = 8, |
63b1a90d SJ |
142 | }, |
143 | { | |
144 | .desc = "RGB 444", | |
145 | .pixelformat = V4L2_PIX_FMT_RGB444, | |
27ffaeb0 | 146 | .mbus_code = MEDIA_BUS_FMT_RGB444_2X8_PADHI_LE, |
63b1a90d | 147 | .bpp = 16, |
45b82596 | 148 | .dlen = 8, |
63b1a90d SJ |
149 | }, |
150 | ||
151 | }; | |
152 | #define BCAP_MAX_FMTS ARRAY_SIZE(bcap_formats) | |
153 | ||
154 | static irqreturn_t bcap_isr(int irq, void *dev_id); | |
155 | ||
156 | static struct bcap_buffer *to_bcap_vb(struct vb2_buffer *vb) | |
157 | { | |
158 | return container_of(vb, struct bcap_buffer, vb); | |
159 | } | |
160 | ||
161 | static int bcap_init_sensor_formats(struct bcap_device *bcap_dev) | |
162 | { | |
27ffaeb0 | 163 | u32 code; |
63b1a90d SJ |
164 | struct bcap_format *sf; |
165 | unsigned int num_formats = 0; | |
166 | int i, j; | |
167 | ||
168 | while (!v4l2_subdev_call(bcap_dev->sd, video, | |
169 | enum_mbus_fmt, num_formats, &code)) | |
170 | num_formats++; | |
171 | if (!num_formats) | |
172 | return -ENXIO; | |
173 | ||
174 | sf = kzalloc(num_formats * sizeof(*sf), GFP_KERNEL); | |
175 | if (!sf) | |
176 | return -ENOMEM; | |
177 | ||
178 | for (i = 0; i < num_formats; i++) { | |
179 | v4l2_subdev_call(bcap_dev->sd, video, | |
180 | enum_mbus_fmt, i, &code); | |
181 | for (j = 0; j < BCAP_MAX_FMTS; j++) | |
182 | if (code == bcap_formats[j].mbus_code) | |
183 | break; | |
184 | if (j == BCAP_MAX_FMTS) { | |
185 | /* we don't allow this sensor working with our bridge */ | |
186 | kfree(sf); | |
187 | return -EINVAL; | |
188 | } | |
189 | sf[i] = bcap_formats[j]; | |
190 | } | |
191 | bcap_dev->sensor_formats = sf; | |
192 | bcap_dev->num_sensor_formats = num_formats; | |
193 | return 0; | |
194 | } | |
195 | ||
196 | static void bcap_free_sensor_formats(struct bcap_device *bcap_dev) | |
197 | { | |
198 | bcap_dev->num_sensor_formats = 0; | |
199 | kfree(bcap_dev->sensor_formats); | |
200 | bcap_dev->sensor_formats = NULL; | |
201 | } | |
202 | ||
203 | static int bcap_open(struct file *file) | |
204 | { | |
205 | struct bcap_device *bcap_dev = video_drvdata(file); | |
206 | struct video_device *vfd = bcap_dev->video_dev; | |
207 | struct bcap_fh *bcap_fh; | |
208 | ||
209 | if (!bcap_dev->sd) { | |
210 | v4l2_err(&bcap_dev->v4l2_dev, "No sub device registered\n"); | |
211 | return -ENODEV; | |
212 | } | |
213 | ||
214 | bcap_fh = kzalloc(sizeof(*bcap_fh), GFP_KERNEL); | |
215 | if (!bcap_fh) { | |
216 | v4l2_err(&bcap_dev->v4l2_dev, | |
217 | "unable to allocate memory for file handle object\n"); | |
218 | return -ENOMEM; | |
219 | } | |
220 | ||
221 | v4l2_fh_init(&bcap_fh->fh, vfd); | |
222 | ||
223 | /* store pointer to v4l2_fh in private_data member of file */ | |
224 | file->private_data = &bcap_fh->fh; | |
225 | v4l2_fh_add(&bcap_fh->fh); | |
226 | bcap_fh->io_allowed = false; | |
227 | return 0; | |
228 | } | |
229 | ||
230 | static int bcap_release(struct file *file) | |
231 | { | |
232 | struct bcap_device *bcap_dev = video_drvdata(file); | |
233 | struct v4l2_fh *fh = file->private_data; | |
234 | struct bcap_fh *bcap_fh = container_of(fh, struct bcap_fh, fh); | |
235 | ||
236 | /* if this instance is doing IO */ | |
237 | if (bcap_fh->io_allowed) | |
238 | vb2_queue_release(&bcap_dev->buffer_queue); | |
239 | ||
240 | file->private_data = NULL; | |
241 | v4l2_fh_del(&bcap_fh->fh); | |
242 | v4l2_fh_exit(&bcap_fh->fh); | |
243 | kfree(bcap_fh); | |
244 | return 0; | |
245 | } | |
246 | ||
63b1a90d SJ |
247 | #ifndef CONFIG_MMU |
248 | static unsigned long bcap_get_unmapped_area(struct file *file, | |
249 | unsigned long addr, | |
250 | unsigned long len, | |
251 | unsigned long pgoff, | |
252 | unsigned long flags) | |
253 | { | |
254 | struct bcap_device *bcap_dev = video_drvdata(file); | |
255 | ||
256 | return vb2_get_unmapped_area(&bcap_dev->buffer_queue, | |
257 | addr, | |
258 | len, | |
259 | pgoff, | |
260 | flags); | |
261 | } | |
262 | #endif | |
263 | ||
63b1a90d SJ |
264 | static int bcap_queue_setup(struct vb2_queue *vq, |
265 | const struct v4l2_format *fmt, | |
266 | unsigned int *nbuffers, unsigned int *nplanes, | |
267 | unsigned int sizes[], void *alloc_ctxs[]) | |
268 | { | |
269 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vq); | |
270 | ||
f3140022 LP |
271 | if (fmt && fmt->fmt.pix.sizeimage < bcap_dev->fmt.sizeimage) |
272 | return -EINVAL; | |
273 | ||
274 | if (vq->num_buffers + *nbuffers < 2) | |
275 | *nbuffers = 2; | |
63b1a90d SJ |
276 | |
277 | *nplanes = 1; | |
f3140022 | 278 | sizes[0] = fmt ? fmt->fmt.pix.sizeimage : bcap_dev->fmt.sizeimage; |
63b1a90d SJ |
279 | alloc_ctxs[0] = bcap_dev->alloc_ctx; |
280 | ||
281 | return 0; | |
282 | } | |
283 | ||
63b1a90d SJ |
284 | static int bcap_buffer_prepare(struct vb2_buffer *vb) |
285 | { | |
286 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vb->vb2_queue); | |
cd3c38ef | 287 | unsigned long size = bcap_dev->fmt.sizeimage; |
63b1a90d | 288 | |
63b1a90d SJ |
289 | if (vb2_plane_size(vb, 0) < size) { |
290 | v4l2_err(&bcap_dev->v4l2_dev, "buffer too small (%lu < %lu)\n", | |
291 | vb2_plane_size(vb, 0), size); | |
292 | return -EINVAL; | |
293 | } | |
cd3c38ef LP |
294 | vb2_set_plane_payload(vb, 0, size); |
295 | ||
296 | vb->v4l2_buf.field = bcap_dev->fmt.field; | |
63b1a90d SJ |
297 | |
298 | return 0; | |
299 | } | |
300 | ||
301 | static void bcap_buffer_queue(struct vb2_buffer *vb) | |
302 | { | |
303 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vb->vb2_queue); | |
304 | struct bcap_buffer *buf = to_bcap_vb(vb); | |
305 | unsigned long flags; | |
306 | ||
307 | spin_lock_irqsave(&bcap_dev->lock, flags); | |
308 | list_add_tail(&buf->list, &bcap_dev->dma_queue); | |
309 | spin_unlock_irqrestore(&bcap_dev->lock, flags); | |
310 | } | |
311 | ||
312 | static void bcap_buffer_cleanup(struct vb2_buffer *vb) | |
313 | { | |
314 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vb->vb2_queue); | |
315 | struct bcap_buffer *buf = to_bcap_vb(vb); | |
316 | unsigned long flags; | |
317 | ||
318 | spin_lock_irqsave(&bcap_dev->lock, flags); | |
319 | list_del_init(&buf->list); | |
320 | spin_unlock_irqrestore(&bcap_dev->lock, flags); | |
321 | } | |
322 | ||
63b1a90d SJ |
323 | static int bcap_start_streaming(struct vb2_queue *vq, unsigned int count) |
324 | { | |
325 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vq); | |
326 | struct ppi_if *ppi = bcap_dev->ppi; | |
6692871a | 327 | struct bcap_buffer *buf, *tmp; |
63b1a90d SJ |
328 | struct ppi_params params; |
329 | int ret; | |
330 | ||
331 | /* enable streamon on the sub device */ | |
332 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_stream, 1); | |
333 | if (ret && (ret != -ENOIOCTLCMD)) { | |
334 | v4l2_err(&bcap_dev->v4l2_dev, "stream on failed in subdev\n"); | |
6692871a | 335 | goto err; |
63b1a90d SJ |
336 | } |
337 | ||
338 | /* set ppi params */ | |
339 | params.width = bcap_dev->fmt.width; | |
340 | params.height = bcap_dev->fmt.height; | |
341 | params.bpp = bcap_dev->bpp; | |
45b82596 | 342 | params.dlen = bcap_dev->dlen; |
63b1a90d SJ |
343 | params.ppi_control = bcap_dev->cfg->ppi_control; |
344 | params.int_mask = bcap_dev->cfg->int_mask; | |
45b82596 | 345 | if (bcap_dev->cfg->inputs[bcap_dev->cur_input].capabilities |
a8451ed2 | 346 | & V4L2_IN_CAP_DV_TIMINGS) { |
45b82596 SJ |
347 | struct v4l2_bt_timings *bt = &bcap_dev->dv_timings.bt; |
348 | ||
349 | params.hdelay = bt->hsync + bt->hbackporch; | |
350 | params.vdelay = bt->vsync + bt->vbackporch; | |
eacf8f9a HV |
351 | params.line = V4L2_DV_BT_FRAME_WIDTH(bt); |
352 | params.frame = V4L2_DV_BT_FRAME_HEIGHT(bt); | |
45b82596 SJ |
353 | } else if (bcap_dev->cfg->inputs[bcap_dev->cur_input].capabilities |
354 | & V4L2_IN_CAP_STD) { | |
355 | params.hdelay = 0; | |
356 | params.vdelay = 0; | |
357 | if (bcap_dev->std & V4L2_STD_525_60) { | |
358 | params.line = 858; | |
359 | params.frame = 525; | |
360 | } else { | |
361 | params.line = 864; | |
362 | params.frame = 625; | |
363 | } | |
364 | } else { | |
365 | params.hdelay = 0; | |
366 | params.vdelay = 0; | |
367 | params.line = params.width + bcap_dev->cfg->blank_pixels; | |
368 | params.frame = params.height; | |
369 | } | |
63b1a90d SJ |
370 | ret = ppi->ops->set_params(ppi, ¶ms); |
371 | if (ret < 0) { | |
372 | v4l2_err(&bcap_dev->v4l2_dev, | |
373 | "Error in setting ppi params\n"); | |
6692871a | 374 | goto err; |
63b1a90d SJ |
375 | } |
376 | ||
377 | /* attach ppi DMA irq handler */ | |
378 | ret = ppi->ops->attach_irq(ppi, bcap_isr); | |
379 | if (ret < 0) { | |
380 | v4l2_err(&bcap_dev->v4l2_dev, | |
381 | "Error in attaching interrupt handler\n"); | |
6692871a | 382 | goto err; |
63b1a90d SJ |
383 | } |
384 | ||
16735d02 | 385 | reinit_completion(&bcap_dev->comp); |
63b1a90d | 386 | bcap_dev->stop = false; |
6692871a | 387 | |
63b1a90d | 388 | return 0; |
6692871a LP |
389 | |
390 | err: | |
391 | list_for_each_entry_safe(buf, tmp, &bcap_dev->dma_queue, list) { | |
392 | list_del(&buf->list); | |
393 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_QUEUED); | |
394 | } | |
395 | ||
396 | return ret; | |
63b1a90d SJ |
397 | } |
398 | ||
e37559b2 | 399 | static void bcap_stop_streaming(struct vb2_queue *vq) |
63b1a90d SJ |
400 | { |
401 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vq); | |
402 | struct ppi_if *ppi = bcap_dev->ppi; | |
403 | int ret; | |
404 | ||
63b1a90d SJ |
405 | bcap_dev->stop = true; |
406 | wait_for_completion(&bcap_dev->comp); | |
407 | ppi->ops->stop(ppi); | |
408 | ppi->ops->detach_irq(ppi); | |
409 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_stream, 0); | |
410 | if (ret && (ret != -ENOIOCTLCMD)) | |
411 | v4l2_err(&bcap_dev->v4l2_dev, | |
412 | "stream off failed in subdev\n"); | |
413 | ||
414 | /* release all active buffers */ | |
415 | while (!list_empty(&bcap_dev->dma_queue)) { | |
d78a4882 | 416 | bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next, |
63b1a90d | 417 | struct bcap_buffer, list); |
7ba3c21c | 418 | list_del_init(&bcap_dev->cur_frm->list); |
d78a4882 | 419 | vb2_buffer_done(&bcap_dev->cur_frm->vb, VB2_BUF_STATE_ERROR); |
63b1a90d | 420 | } |
63b1a90d SJ |
421 | } |
422 | ||
423 | static struct vb2_ops bcap_video_qops = { | |
424 | .queue_setup = bcap_queue_setup, | |
63b1a90d SJ |
425 | .buf_prepare = bcap_buffer_prepare, |
426 | .buf_cleanup = bcap_buffer_cleanup, | |
427 | .buf_queue = bcap_buffer_queue, | |
4d655ca4 PL |
428 | .wait_prepare = vb2_ops_wait_prepare, |
429 | .wait_finish = vb2_ops_wait_finish, | |
63b1a90d SJ |
430 | .start_streaming = bcap_start_streaming, |
431 | .stop_streaming = bcap_stop_streaming, | |
432 | }; | |
433 | ||
434 | static int bcap_reqbufs(struct file *file, void *priv, | |
435 | struct v4l2_requestbuffers *req_buf) | |
436 | { | |
437 | struct bcap_device *bcap_dev = video_drvdata(file); | |
438 | struct vb2_queue *vq = &bcap_dev->buffer_queue; | |
439 | struct v4l2_fh *fh = file->private_data; | |
440 | struct bcap_fh *bcap_fh = container_of(fh, struct bcap_fh, fh); | |
441 | ||
442 | if (vb2_is_busy(vq)) | |
443 | return -EBUSY; | |
444 | ||
445 | bcap_fh->io_allowed = true; | |
446 | ||
447 | return vb2_reqbufs(vq, req_buf); | |
448 | } | |
449 | ||
450 | static int bcap_querybuf(struct file *file, void *priv, | |
451 | struct v4l2_buffer *buf) | |
452 | { | |
453 | struct bcap_device *bcap_dev = video_drvdata(file); | |
454 | ||
455 | return vb2_querybuf(&bcap_dev->buffer_queue, buf); | |
456 | } | |
457 | ||
458 | static int bcap_qbuf(struct file *file, void *priv, | |
459 | struct v4l2_buffer *buf) | |
460 | { | |
461 | struct bcap_device *bcap_dev = video_drvdata(file); | |
462 | struct v4l2_fh *fh = file->private_data; | |
463 | struct bcap_fh *bcap_fh = container_of(fh, struct bcap_fh, fh); | |
464 | ||
465 | if (!bcap_fh->io_allowed) | |
466 | return -EBUSY; | |
467 | ||
468 | return vb2_qbuf(&bcap_dev->buffer_queue, buf); | |
469 | } | |
470 | ||
471 | static int bcap_dqbuf(struct file *file, void *priv, | |
472 | struct v4l2_buffer *buf) | |
473 | { | |
474 | struct bcap_device *bcap_dev = video_drvdata(file); | |
475 | struct v4l2_fh *fh = file->private_data; | |
476 | struct bcap_fh *bcap_fh = container_of(fh, struct bcap_fh, fh); | |
477 | ||
478 | if (!bcap_fh->io_allowed) | |
479 | return -EBUSY; | |
480 | ||
481 | return vb2_dqbuf(&bcap_dev->buffer_queue, | |
482 | buf, file->f_flags & O_NONBLOCK); | |
483 | } | |
484 | ||
485 | static irqreturn_t bcap_isr(int irq, void *dev_id) | |
486 | { | |
487 | struct ppi_if *ppi = dev_id; | |
488 | struct bcap_device *bcap_dev = ppi->priv; | |
63b1a90d SJ |
489 | struct vb2_buffer *vb = &bcap_dev->cur_frm->vb; |
490 | dma_addr_t addr; | |
491 | ||
492 | spin_lock(&bcap_dev->lock); | |
493 | ||
d78a4882 | 494 | if (!list_empty(&bcap_dev->dma_queue)) { |
8e6057b5 | 495 | v4l2_get_timestamp(&vb->v4l2_buf.timestamp); |
d78a4882 SJ |
496 | if (ppi->err) { |
497 | vb2_buffer_done(vb, VB2_BUF_STATE_ERROR); | |
498 | ppi->err = false; | |
499 | } else { | |
500 | vb2_buffer_done(vb, VB2_BUF_STATE_DONE); | |
501 | } | |
502 | bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next, | |
503 | struct bcap_buffer, list); | |
7ba3c21c | 504 | list_del_init(&bcap_dev->cur_frm->list); |
d78a4882 SJ |
505 | } else { |
506 | /* clear error flag, we will get a new frame */ | |
507 | if (ppi->err) | |
508 | ppi->err = false; | |
63b1a90d SJ |
509 | } |
510 | ||
511 | ppi->ops->stop(ppi); | |
512 | ||
513 | if (bcap_dev->stop) { | |
514 | complete(&bcap_dev->comp); | |
515 | } else { | |
d78a4882 SJ |
516 | addr = vb2_dma_contig_plane_dma_addr(&bcap_dev->cur_frm->vb, 0); |
517 | ppi->ops->update_addr(ppi, (unsigned long)addr); | |
63b1a90d SJ |
518 | ppi->ops->start(ppi); |
519 | } | |
520 | ||
521 | spin_unlock(&bcap_dev->lock); | |
522 | ||
523 | return IRQ_HANDLED; | |
524 | } | |
525 | ||
526 | static int bcap_streamon(struct file *file, void *priv, | |
527 | enum v4l2_buf_type buf_type) | |
528 | { | |
529 | struct bcap_device *bcap_dev = video_drvdata(file); | |
530 | struct bcap_fh *fh = file->private_data; | |
531 | struct ppi_if *ppi = bcap_dev->ppi; | |
532 | dma_addr_t addr; | |
533 | int ret; | |
534 | ||
535 | if (!fh->io_allowed) | |
536 | return -EBUSY; | |
537 | ||
538 | /* call streamon to start streaming in videobuf */ | |
539 | ret = vb2_streamon(&bcap_dev->buffer_queue, buf_type); | |
540 | if (ret) | |
541 | return ret; | |
542 | ||
543 | /* if dma queue is empty, return error */ | |
544 | if (list_empty(&bcap_dev->dma_queue)) { | |
545 | v4l2_err(&bcap_dev->v4l2_dev, "dma queue is empty\n"); | |
546 | ret = -EINVAL; | |
547 | goto err; | |
548 | } | |
549 | ||
550 | /* get the next frame from the dma queue */ | |
d78a4882 | 551 | bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next, |
63b1a90d | 552 | struct bcap_buffer, list); |
63b1a90d | 553 | /* remove buffer from the dma queue */ |
7ba3c21c | 554 | list_del_init(&bcap_dev->cur_frm->list); |
63b1a90d SJ |
555 | addr = vb2_dma_contig_plane_dma_addr(&bcap_dev->cur_frm->vb, 0); |
556 | /* update DMA address */ | |
557 | ppi->ops->update_addr(ppi, (unsigned long)addr); | |
558 | /* enable ppi */ | |
559 | ppi->ops->start(ppi); | |
560 | ||
561 | return 0; | |
562 | err: | |
563 | vb2_streamoff(&bcap_dev->buffer_queue, buf_type); | |
564 | return ret; | |
565 | } | |
566 | ||
567 | static int bcap_streamoff(struct file *file, void *priv, | |
568 | enum v4l2_buf_type buf_type) | |
569 | { | |
570 | struct bcap_device *bcap_dev = video_drvdata(file); | |
571 | struct bcap_fh *fh = file->private_data; | |
572 | ||
573 | if (!fh->io_allowed) | |
574 | return -EBUSY; | |
575 | ||
576 | return vb2_streamoff(&bcap_dev->buffer_queue, buf_type); | |
577 | } | |
578 | ||
579 | static int bcap_querystd(struct file *file, void *priv, v4l2_std_id *std) | |
580 | { | |
581 | struct bcap_device *bcap_dev = video_drvdata(file); | |
582 | ||
583 | return v4l2_subdev_call(bcap_dev->sd, video, querystd, std); | |
584 | } | |
585 | ||
586 | static int bcap_g_std(struct file *file, void *priv, v4l2_std_id *std) | |
587 | { | |
588 | struct bcap_device *bcap_dev = video_drvdata(file); | |
589 | ||
590 | *std = bcap_dev->std; | |
591 | return 0; | |
592 | } | |
593 | ||
314527ac | 594 | static int bcap_s_std(struct file *file, void *priv, v4l2_std_id std) |
63b1a90d SJ |
595 | { |
596 | struct bcap_device *bcap_dev = video_drvdata(file); | |
597 | int ret; | |
598 | ||
599 | if (vb2_is_busy(&bcap_dev->buffer_queue)) | |
600 | return -EBUSY; | |
601 | ||
8774bed9 | 602 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_std, std); |
63b1a90d SJ |
603 | if (ret < 0) |
604 | return ret; | |
605 | ||
314527ac | 606 | bcap_dev->std = std; |
63b1a90d SJ |
607 | return 0; |
608 | } | |
609 | ||
ead156c4 SJ |
610 | static int bcap_enum_dv_timings(struct file *file, void *priv, |
611 | struct v4l2_enum_dv_timings *timings) | |
612 | { | |
613 | struct bcap_device *bcap_dev = video_drvdata(file); | |
614 | ||
f1f8e434 LP |
615 | timings->pad = 0; |
616 | ||
617 | return v4l2_subdev_call(bcap_dev->sd, pad, | |
ead156c4 SJ |
618 | enum_dv_timings, timings); |
619 | } | |
620 | ||
621 | static int bcap_query_dv_timings(struct file *file, void *priv, | |
45b82596 SJ |
622 | struct v4l2_dv_timings *timings) |
623 | { | |
624 | struct bcap_device *bcap_dev = video_drvdata(file); | |
45b82596 | 625 | |
ead156c4 SJ |
626 | return v4l2_subdev_call(bcap_dev->sd, video, |
627 | query_dv_timings, timings); | |
628 | } | |
45b82596 | 629 | |
ead156c4 SJ |
630 | static int bcap_g_dv_timings(struct file *file, void *priv, |
631 | struct v4l2_dv_timings *timings) | |
632 | { | |
633 | struct bcap_device *bcap_dev = video_drvdata(file); | |
634 | ||
635 | *timings = bcap_dev->dv_timings; | |
45b82596 SJ |
636 | return 0; |
637 | } | |
638 | ||
639 | static int bcap_s_dv_timings(struct file *file, void *priv, | |
640 | struct v4l2_dv_timings *timings) | |
641 | { | |
642 | struct bcap_device *bcap_dev = video_drvdata(file); | |
643 | int ret; | |
644 | if (vb2_is_busy(&bcap_dev->buffer_queue)) | |
645 | return -EBUSY; | |
646 | ||
647 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_dv_timings, timings); | |
648 | if (ret < 0) | |
649 | return ret; | |
650 | ||
651 | bcap_dev->dv_timings = *timings; | |
652 | return 0; | |
653 | } | |
654 | ||
63b1a90d SJ |
655 | static int bcap_enum_input(struct file *file, void *priv, |
656 | struct v4l2_input *input) | |
657 | { | |
658 | struct bcap_device *bcap_dev = video_drvdata(file); | |
659 | struct bfin_capture_config *config = bcap_dev->cfg; | |
660 | int ret; | |
661 | u32 status; | |
662 | ||
663 | if (input->index >= config->num_inputs) | |
664 | return -EINVAL; | |
665 | ||
666 | *input = config->inputs[input->index]; | |
667 | /* get input status */ | |
668 | ret = v4l2_subdev_call(bcap_dev->sd, video, g_input_status, &status); | |
669 | if (!ret) | |
670 | input->status = status; | |
671 | return 0; | |
672 | } | |
673 | ||
674 | static int bcap_g_input(struct file *file, void *priv, unsigned int *index) | |
675 | { | |
676 | struct bcap_device *bcap_dev = video_drvdata(file); | |
677 | ||
678 | *index = bcap_dev->cur_input; | |
679 | return 0; | |
680 | } | |
681 | ||
682 | static int bcap_s_input(struct file *file, void *priv, unsigned int index) | |
683 | { | |
684 | struct bcap_device *bcap_dev = video_drvdata(file); | |
685 | struct bfin_capture_config *config = bcap_dev->cfg; | |
686 | struct bcap_route *route; | |
687 | int ret; | |
688 | ||
689 | if (vb2_is_busy(&bcap_dev->buffer_queue)) | |
690 | return -EBUSY; | |
691 | ||
692 | if (index >= config->num_inputs) | |
693 | return -EINVAL; | |
694 | ||
695 | route = &config->routes[index]; | |
696 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_routing, | |
697 | route->input, route->output, 0); | |
698 | if ((ret < 0) && (ret != -ENOIOCTLCMD)) { | |
699 | v4l2_err(&bcap_dev->v4l2_dev, "Failed to set input\n"); | |
700 | return ret; | |
701 | } | |
702 | bcap_dev->cur_input = index; | |
45b82596 SJ |
703 | /* if this route has specific config, update ppi control */ |
704 | if (route->ppi_control) | |
705 | config->ppi_control = route->ppi_control; | |
63b1a90d SJ |
706 | return 0; |
707 | } | |
708 | ||
709 | static int bcap_try_format(struct bcap_device *bcap, | |
710 | struct v4l2_pix_format *pixfmt, | |
45b82596 | 711 | struct bcap_format *bcap_fmt) |
63b1a90d SJ |
712 | { |
713 | struct bcap_format *sf = bcap->sensor_formats; | |
714 | struct bcap_format *fmt = NULL; | |
715 | struct v4l2_mbus_framefmt mbus_fmt; | |
716 | int ret, i; | |
717 | ||
718 | for (i = 0; i < bcap->num_sensor_formats; i++) { | |
719 | fmt = &sf[i]; | |
720 | if (pixfmt->pixelformat == fmt->pixelformat) | |
721 | break; | |
722 | } | |
723 | if (i == bcap->num_sensor_formats) | |
724 | fmt = &sf[0]; | |
725 | ||
63b1a90d SJ |
726 | v4l2_fill_mbus_format(&mbus_fmt, pixfmt, fmt->mbus_code); |
727 | ret = v4l2_subdev_call(bcap->sd, video, | |
728 | try_mbus_fmt, &mbus_fmt); | |
729 | if (ret < 0) | |
730 | return ret; | |
731 | v4l2_fill_pix_format(pixfmt, &mbus_fmt); | |
45b82596 SJ |
732 | if (bcap_fmt) { |
733 | for (i = 0; i < bcap->num_sensor_formats; i++) { | |
734 | fmt = &sf[i]; | |
735 | if (mbus_fmt.code == fmt->mbus_code) | |
736 | break; | |
737 | } | |
738 | *bcap_fmt = *fmt; | |
739 | } | |
63b1a90d SJ |
740 | pixfmt->bytesperline = pixfmt->width * fmt->bpp / 8; |
741 | pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height; | |
742 | return 0; | |
743 | } | |
744 | ||
745 | static int bcap_enum_fmt_vid_cap(struct file *file, void *priv, | |
746 | struct v4l2_fmtdesc *fmt) | |
747 | { | |
748 | struct bcap_device *bcap_dev = video_drvdata(file); | |
749 | struct bcap_format *sf = bcap_dev->sensor_formats; | |
750 | ||
751 | if (fmt->index >= bcap_dev->num_sensor_formats) | |
752 | return -EINVAL; | |
753 | ||
754 | fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
755 | strlcpy(fmt->description, | |
756 | sf[fmt->index].desc, | |
757 | sizeof(fmt->description)); | |
758 | fmt->pixelformat = sf[fmt->index].pixelformat; | |
759 | return 0; | |
760 | } | |
761 | ||
762 | static int bcap_try_fmt_vid_cap(struct file *file, void *priv, | |
763 | struct v4l2_format *fmt) | |
764 | { | |
765 | struct bcap_device *bcap_dev = video_drvdata(file); | |
766 | struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; | |
767 | ||
45b82596 | 768 | return bcap_try_format(bcap_dev, pixfmt, NULL); |
63b1a90d SJ |
769 | } |
770 | ||
771 | static int bcap_g_fmt_vid_cap(struct file *file, void *priv, | |
772 | struct v4l2_format *fmt) | |
773 | { | |
774 | struct bcap_device *bcap_dev = video_drvdata(file); | |
775 | ||
776 | fmt->fmt.pix = bcap_dev->fmt; | |
777 | return 0; | |
778 | } | |
779 | ||
780 | static int bcap_s_fmt_vid_cap(struct file *file, void *priv, | |
781 | struct v4l2_format *fmt) | |
782 | { | |
783 | struct bcap_device *bcap_dev = video_drvdata(file); | |
784 | struct v4l2_mbus_framefmt mbus_fmt; | |
45b82596 | 785 | struct bcap_format bcap_fmt; |
63b1a90d | 786 | struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; |
45b82596 | 787 | int ret; |
63b1a90d SJ |
788 | |
789 | if (vb2_is_busy(&bcap_dev->buffer_queue)) | |
790 | return -EBUSY; | |
791 | ||
792 | /* see if format works */ | |
45b82596 | 793 | ret = bcap_try_format(bcap_dev, pixfmt, &bcap_fmt); |
63b1a90d SJ |
794 | if (ret < 0) |
795 | return ret; | |
796 | ||
45b82596 | 797 | v4l2_fill_mbus_format(&mbus_fmt, pixfmt, bcap_fmt.mbus_code); |
63b1a90d SJ |
798 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_mbus_fmt, &mbus_fmt); |
799 | if (ret < 0) | |
800 | return ret; | |
801 | bcap_dev->fmt = *pixfmt; | |
45b82596 SJ |
802 | bcap_dev->bpp = bcap_fmt.bpp; |
803 | bcap_dev->dlen = bcap_fmt.dlen; | |
63b1a90d SJ |
804 | return 0; |
805 | } | |
806 | ||
807 | static int bcap_querycap(struct file *file, void *priv, | |
808 | struct v4l2_capability *cap) | |
809 | { | |
810 | struct bcap_device *bcap_dev = video_drvdata(file); | |
811 | ||
a020c747 HV |
812 | cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; |
813 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; | |
63b1a90d SJ |
814 | strlcpy(cap->driver, CAPTURE_DRV_NAME, sizeof(cap->driver)); |
815 | strlcpy(cap->bus_info, "Blackfin Platform", sizeof(cap->bus_info)); | |
816 | strlcpy(cap->card, bcap_dev->cfg->card_name, sizeof(cap->card)); | |
817 | return 0; | |
818 | } | |
819 | ||
820 | static int bcap_g_parm(struct file *file, void *fh, | |
821 | struct v4l2_streamparm *a) | |
822 | { | |
823 | struct bcap_device *bcap_dev = video_drvdata(file); | |
824 | ||
825 | if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
826 | return -EINVAL; | |
827 | return v4l2_subdev_call(bcap_dev->sd, video, g_parm, a); | |
828 | } | |
829 | ||
830 | static int bcap_s_parm(struct file *file, void *fh, | |
831 | struct v4l2_streamparm *a) | |
832 | { | |
833 | struct bcap_device *bcap_dev = video_drvdata(file); | |
834 | ||
835 | if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
836 | return -EINVAL; | |
837 | return v4l2_subdev_call(bcap_dev->sd, video, s_parm, a); | |
838 | } | |
839 | ||
63b1a90d SJ |
840 | static int bcap_log_status(struct file *file, void *priv) |
841 | { | |
842 | struct bcap_device *bcap_dev = video_drvdata(file); | |
843 | /* status for sub devices */ | |
844 | v4l2_device_call_all(&bcap_dev->v4l2_dev, 0, core, log_status); | |
845 | return 0; | |
846 | } | |
847 | ||
848 | static const struct v4l2_ioctl_ops bcap_ioctl_ops = { | |
849 | .vidioc_querycap = bcap_querycap, | |
850 | .vidioc_g_fmt_vid_cap = bcap_g_fmt_vid_cap, | |
851 | .vidioc_enum_fmt_vid_cap = bcap_enum_fmt_vid_cap, | |
852 | .vidioc_s_fmt_vid_cap = bcap_s_fmt_vid_cap, | |
853 | .vidioc_try_fmt_vid_cap = bcap_try_fmt_vid_cap, | |
854 | .vidioc_enum_input = bcap_enum_input, | |
855 | .vidioc_g_input = bcap_g_input, | |
856 | .vidioc_s_input = bcap_s_input, | |
857 | .vidioc_querystd = bcap_querystd, | |
858 | .vidioc_s_std = bcap_s_std, | |
859 | .vidioc_g_std = bcap_g_std, | |
45b82596 SJ |
860 | .vidioc_s_dv_timings = bcap_s_dv_timings, |
861 | .vidioc_g_dv_timings = bcap_g_dv_timings, | |
ead156c4 SJ |
862 | .vidioc_query_dv_timings = bcap_query_dv_timings, |
863 | .vidioc_enum_dv_timings = bcap_enum_dv_timings, | |
63b1a90d SJ |
864 | .vidioc_reqbufs = bcap_reqbufs, |
865 | .vidioc_querybuf = bcap_querybuf, | |
866 | .vidioc_qbuf = bcap_qbuf, | |
867 | .vidioc_dqbuf = bcap_dqbuf, | |
868 | .vidioc_streamon = bcap_streamon, | |
869 | .vidioc_streamoff = bcap_streamoff, | |
870 | .vidioc_g_parm = bcap_g_parm, | |
871 | .vidioc_s_parm = bcap_s_parm, | |
63b1a90d SJ |
872 | .vidioc_log_status = bcap_log_status, |
873 | }; | |
874 | ||
875 | static struct v4l2_file_operations bcap_fops = { | |
876 | .owner = THIS_MODULE, | |
877 | .open = bcap_open, | |
878 | .release = bcap_release, | |
879 | .unlocked_ioctl = video_ioctl2, | |
8fd05b7e | 880 | .mmap = vb2_fop_mmap, |
63b1a90d SJ |
881 | #ifndef CONFIG_MMU |
882 | .get_unmapped_area = bcap_get_unmapped_area, | |
883 | #endif | |
8fd05b7e | 884 | .poll = vb2_fop_poll |
63b1a90d SJ |
885 | }; |
886 | ||
4c62e976 | 887 | static int bcap_probe(struct platform_device *pdev) |
63b1a90d SJ |
888 | { |
889 | struct bcap_device *bcap_dev; | |
890 | struct video_device *vfd; | |
891 | struct i2c_adapter *i2c_adap; | |
892 | struct bfin_capture_config *config; | |
893 | struct vb2_queue *q; | |
45b82596 | 894 | struct bcap_route *route; |
63b1a90d SJ |
895 | int ret; |
896 | ||
897 | config = pdev->dev.platform_data; | |
d9fdbeff | 898 | if (!config || !config->num_inputs) { |
63b1a90d SJ |
899 | v4l2_err(pdev->dev.driver, "Unable to get board config\n"); |
900 | return -ENODEV; | |
901 | } | |
902 | ||
903 | bcap_dev = kzalloc(sizeof(*bcap_dev), GFP_KERNEL); | |
904 | if (!bcap_dev) { | |
905 | v4l2_err(pdev->dev.driver, "Unable to alloc bcap_dev\n"); | |
906 | return -ENOMEM; | |
907 | } | |
908 | ||
909 | bcap_dev->cfg = config; | |
910 | ||
f7d0e6d6 | 911 | bcap_dev->ppi = ppi_create_instance(pdev, config->ppi_info); |
63b1a90d SJ |
912 | if (!bcap_dev->ppi) { |
913 | v4l2_err(pdev->dev.driver, "Unable to create ppi\n"); | |
914 | ret = -ENODEV; | |
915 | goto err_free_dev; | |
916 | } | |
917 | bcap_dev->ppi->priv = bcap_dev; | |
918 | ||
919 | bcap_dev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev); | |
920 | if (IS_ERR(bcap_dev->alloc_ctx)) { | |
921 | ret = PTR_ERR(bcap_dev->alloc_ctx); | |
922 | goto err_free_ppi; | |
923 | } | |
924 | ||
925 | vfd = video_device_alloc(); | |
926 | if (!vfd) { | |
927 | ret = -ENOMEM; | |
928 | v4l2_err(pdev->dev.driver, "Unable to alloc video device\n"); | |
929 | goto err_cleanup_ctx; | |
930 | } | |
931 | ||
932 | /* initialize field of video device */ | |
933 | vfd->release = video_device_release; | |
934 | vfd->fops = &bcap_fops; | |
935 | vfd->ioctl_ops = &bcap_ioctl_ops; | |
936 | vfd->tvnorms = 0; | |
937 | vfd->v4l2_dev = &bcap_dev->v4l2_dev; | |
63b1a90d SJ |
938 | strncpy(vfd->name, CAPTURE_DRV_NAME, sizeof(vfd->name)); |
939 | bcap_dev->video_dev = vfd; | |
940 | ||
941 | ret = v4l2_device_register(&pdev->dev, &bcap_dev->v4l2_dev); | |
942 | if (ret) { | |
943 | v4l2_err(pdev->dev.driver, | |
944 | "Unable to register v4l2 device\n"); | |
945 | goto err_release_vdev; | |
946 | } | |
947 | v4l2_info(&bcap_dev->v4l2_dev, "v4l2 device registered\n"); | |
948 | ||
949 | bcap_dev->v4l2_dev.ctrl_handler = &bcap_dev->ctrl_handler; | |
950 | ret = v4l2_ctrl_handler_init(&bcap_dev->ctrl_handler, 0); | |
951 | if (ret) { | |
952 | v4l2_err(&bcap_dev->v4l2_dev, | |
953 | "Unable to init control handler\n"); | |
954 | goto err_unreg_v4l2; | |
955 | } | |
956 | ||
957 | spin_lock_init(&bcap_dev->lock); | |
958 | /* initialize queue */ | |
959 | q = &bcap_dev->buffer_queue; | |
960 | q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
961 | q->io_modes = VB2_MMAP; | |
962 | q->drv_priv = bcap_dev; | |
963 | q->buf_struct_size = sizeof(struct bcap_buffer); | |
964 | q->ops = &bcap_video_qops; | |
965 | q->mem_ops = &vb2_dma_contig_memops; | |
ade48681 | 966 | q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
4d655ca4 | 967 | q->lock = &bcap_dev->mutex; |
5f65ca81 | 968 | q->min_buffers_needed = 1; |
63b1a90d | 969 | |
20420f92 HV |
970 | ret = vb2_queue_init(q); |
971 | if (ret) | |
972 | goto err_free_handler; | |
63b1a90d SJ |
973 | |
974 | mutex_init(&bcap_dev->mutex); | |
975 | init_completion(&bcap_dev->comp); | |
976 | ||
977 | /* init video dma queues */ | |
978 | INIT_LIST_HEAD(&bcap_dev->dma_queue); | |
979 | ||
980 | vfd->lock = &bcap_dev->mutex; | |
8fd05b7e | 981 | vfd->queue = q; |
63b1a90d SJ |
982 | |
983 | /* register video device */ | |
984 | ret = video_register_device(bcap_dev->video_dev, VFL_TYPE_GRABBER, -1); | |
985 | if (ret) { | |
986 | v4l2_err(&bcap_dev->v4l2_dev, | |
987 | "Unable to register video device\n"); | |
988 | goto err_free_handler; | |
989 | } | |
990 | video_set_drvdata(bcap_dev->video_dev, bcap_dev); | |
991 | v4l2_info(&bcap_dev->v4l2_dev, "video device registered as: %s\n", | |
992 | video_device_node_name(vfd)); | |
993 | ||
994 | /* load up the subdevice */ | |
995 | i2c_adap = i2c_get_adapter(config->i2c_adapter_id); | |
996 | if (!i2c_adap) { | |
997 | v4l2_err(&bcap_dev->v4l2_dev, | |
998 | "Unable to find i2c adapter\n"); | |
150a1363 | 999 | ret = -ENODEV; |
63b1a90d SJ |
1000 | goto err_unreg_vdev; |
1001 | ||
1002 | } | |
1003 | bcap_dev->sd = v4l2_i2c_new_subdev_board(&bcap_dev->v4l2_dev, | |
1004 | i2c_adap, | |
1005 | &config->board_info, | |
1006 | NULL); | |
1007 | if (bcap_dev->sd) { | |
1008 | int i; | |
45b82596 | 1009 | |
63b1a90d SJ |
1010 | /* update tvnorms from the sub devices */ |
1011 | for (i = 0; i < config->num_inputs; i++) | |
1012 | vfd->tvnorms |= config->inputs[i].std; | |
1013 | } else { | |
1014 | v4l2_err(&bcap_dev->v4l2_dev, | |
1015 | "Unable to register sub device\n"); | |
d9fdbeff | 1016 | ret = -ENODEV; |
63b1a90d SJ |
1017 | goto err_unreg_vdev; |
1018 | } | |
1019 | ||
1020 | v4l2_info(&bcap_dev->v4l2_dev, "v4l2 sub device registered\n"); | |
1021 | ||
45b82596 SJ |
1022 | /* |
1023 | * explicitly set input, otherwise some boards | |
1024 | * may not work at the state as we expected | |
1025 | */ | |
1026 | route = &config->routes[0]; | |
1027 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_routing, | |
1028 | route->input, route->output, 0); | |
1029 | if ((ret < 0) && (ret != -ENOIOCTLCMD)) { | |
1030 | v4l2_err(&bcap_dev->v4l2_dev, "Failed to set input\n"); | |
1031 | goto err_unreg_vdev; | |
1032 | } | |
1033 | bcap_dev->cur_input = 0; | |
1034 | /* if this route has specific config, update ppi control */ | |
1035 | if (route->ppi_control) | |
1036 | config->ppi_control = route->ppi_control; | |
1037 | ||
63b1a90d | 1038 | /* now we can probe the default state */ |
45b82596 | 1039 | if (config->inputs[0].capabilities & V4L2_IN_CAP_STD) { |
63b1a90d | 1040 | v4l2_std_id std; |
8774bed9 | 1041 | ret = v4l2_subdev_call(bcap_dev->sd, video, g_std, &std); |
63b1a90d SJ |
1042 | if (ret) { |
1043 | v4l2_err(&bcap_dev->v4l2_dev, | |
1044 | "Unable to get std\n"); | |
1045 | goto err_unreg_vdev; | |
1046 | } | |
1047 | bcap_dev->std = std; | |
1048 | } | |
a8451ed2 | 1049 | if (config->inputs[0].capabilities & V4L2_IN_CAP_DV_TIMINGS) { |
45b82596 SJ |
1050 | struct v4l2_dv_timings dv_timings; |
1051 | ret = v4l2_subdev_call(bcap_dev->sd, video, | |
1052 | g_dv_timings, &dv_timings); | |
1053 | if (ret) { | |
1054 | v4l2_err(&bcap_dev->v4l2_dev, | |
1055 | "Unable to get dv timings\n"); | |
1056 | goto err_unreg_vdev; | |
1057 | } | |
1058 | bcap_dev->dv_timings = dv_timings; | |
1059 | } | |
63b1a90d SJ |
1060 | ret = bcap_init_sensor_formats(bcap_dev); |
1061 | if (ret) { | |
1062 | v4l2_err(&bcap_dev->v4l2_dev, | |
1063 | "Unable to create sensor formats table\n"); | |
1064 | goto err_unreg_vdev; | |
1065 | } | |
1066 | return 0; | |
1067 | err_unreg_vdev: | |
1068 | video_unregister_device(bcap_dev->video_dev); | |
1069 | bcap_dev->video_dev = NULL; | |
1070 | err_free_handler: | |
1071 | v4l2_ctrl_handler_free(&bcap_dev->ctrl_handler); | |
1072 | err_unreg_v4l2: | |
1073 | v4l2_device_unregister(&bcap_dev->v4l2_dev); | |
1074 | err_release_vdev: | |
1075 | if (bcap_dev->video_dev) | |
1076 | video_device_release(bcap_dev->video_dev); | |
1077 | err_cleanup_ctx: | |
1078 | vb2_dma_contig_cleanup_ctx(bcap_dev->alloc_ctx); | |
1079 | err_free_ppi: | |
1080 | ppi_delete_instance(bcap_dev->ppi); | |
1081 | err_free_dev: | |
1082 | kfree(bcap_dev); | |
1083 | return ret; | |
1084 | } | |
1085 | ||
4c62e976 | 1086 | static int bcap_remove(struct platform_device *pdev) |
63b1a90d SJ |
1087 | { |
1088 | struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); | |
1089 | struct bcap_device *bcap_dev = container_of(v4l2_dev, | |
1090 | struct bcap_device, v4l2_dev); | |
1091 | ||
1092 | bcap_free_sensor_formats(bcap_dev); | |
1093 | video_unregister_device(bcap_dev->video_dev); | |
1094 | v4l2_ctrl_handler_free(&bcap_dev->ctrl_handler); | |
1095 | v4l2_device_unregister(v4l2_dev); | |
1096 | vb2_dma_contig_cleanup_ctx(bcap_dev->alloc_ctx); | |
1097 | ppi_delete_instance(bcap_dev->ppi); | |
1098 | kfree(bcap_dev); | |
1099 | return 0; | |
1100 | } | |
1101 | ||
1102 | static struct platform_driver bcap_driver = { | |
1103 | .driver = { | |
1104 | .name = CAPTURE_DRV_NAME, | |
63b1a90d SJ |
1105 | }, |
1106 | .probe = bcap_probe, | |
4c62e976 | 1107 | .remove = bcap_remove, |
63b1a90d | 1108 | }; |
7f2b3a7d | 1109 | module_platform_driver(bcap_driver); |
63b1a90d SJ |
1110 | |
1111 | MODULE_DESCRIPTION("Analog Devices blackfin video capture driver"); | |
1112 | MODULE_AUTHOR("Scott Jiang <Scott.Jiang.Linux@gmail.com>"); | |
1113 | MODULE_LICENSE("GPL v2"); |