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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 { | |
2d700715 | 57 | struct vb2_v4l2_buffer vb; |
63b1a90d SJ |
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 */ | |
afb7a966 | 67 | struct video_device video_dev; |
63b1a90d SJ |
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; | |
63b1a90d SJ |
94 | /* queue of filled frames */ |
95 | struct list_head dma_queue; | |
96 | /* used in videobuf2 callback */ | |
97 | spinlock_t lock; | |
98 | /* used to access capture device */ | |
99 | struct mutex mutex; | |
100 | /* used to wait ppi to complete one transfer */ | |
101 | struct completion comp; | |
102 | /* prepare to stop */ | |
103 | bool stop; | |
9d490e52 LP |
104 | /* vb2 buffer sequence counter */ |
105 | unsigned sequence; | |
63b1a90d SJ |
106 | }; |
107 | ||
63b1a90d SJ |
108 | static const struct bcap_format bcap_formats[] = { |
109 | { | |
110 | .desc = "YCbCr 4:2:2 Interleaved UYVY", | |
111 | .pixelformat = V4L2_PIX_FMT_UYVY, | |
27ffaeb0 | 112 | .mbus_code = MEDIA_BUS_FMT_UYVY8_2X8, |
63b1a90d | 113 | .bpp = 16, |
45b82596 | 114 | .dlen = 8, |
63b1a90d SJ |
115 | }, |
116 | { | |
117 | .desc = "YCbCr 4:2:2 Interleaved YUYV", | |
118 | .pixelformat = V4L2_PIX_FMT_YUYV, | |
27ffaeb0 | 119 | .mbus_code = MEDIA_BUS_FMT_YUYV8_2X8, |
63b1a90d | 120 | .bpp = 16, |
45b82596 SJ |
121 | .dlen = 8, |
122 | }, | |
123 | { | |
124 | .desc = "YCbCr 4:2:2 Interleaved UYVY", | |
125 | .pixelformat = V4L2_PIX_FMT_UYVY, | |
27ffaeb0 | 126 | .mbus_code = MEDIA_BUS_FMT_UYVY8_1X16, |
45b82596 SJ |
127 | .bpp = 16, |
128 | .dlen = 16, | |
63b1a90d SJ |
129 | }, |
130 | { | |
131 | .desc = "RGB 565", | |
132 | .pixelformat = V4L2_PIX_FMT_RGB565, | |
27ffaeb0 | 133 | .mbus_code = MEDIA_BUS_FMT_RGB565_2X8_LE, |
63b1a90d | 134 | .bpp = 16, |
45b82596 | 135 | .dlen = 8, |
63b1a90d SJ |
136 | }, |
137 | { | |
138 | .desc = "RGB 444", | |
139 | .pixelformat = V4L2_PIX_FMT_RGB444, | |
27ffaeb0 | 140 | .mbus_code = MEDIA_BUS_FMT_RGB444_2X8_PADHI_LE, |
63b1a90d | 141 | .bpp = 16, |
45b82596 | 142 | .dlen = 8, |
63b1a90d SJ |
143 | }, |
144 | ||
145 | }; | |
146 | #define BCAP_MAX_FMTS ARRAY_SIZE(bcap_formats) | |
147 | ||
148 | static irqreturn_t bcap_isr(int irq, void *dev_id); | |
149 | ||
2d700715 | 150 | static struct bcap_buffer *to_bcap_vb(struct vb2_v4l2_buffer *vb) |
63b1a90d SJ |
151 | { |
152 | return container_of(vb, struct bcap_buffer, vb); | |
153 | } | |
154 | ||
155 | static int bcap_init_sensor_formats(struct bcap_device *bcap_dev) | |
156 | { | |
ebcff5fc HV |
157 | struct v4l2_subdev_mbus_code_enum code = { |
158 | .which = V4L2_SUBDEV_FORMAT_ACTIVE, | |
159 | }; | |
63b1a90d SJ |
160 | struct bcap_format *sf; |
161 | unsigned int num_formats = 0; | |
162 | int i, j; | |
163 | ||
ebcff5fc HV |
164 | while (!v4l2_subdev_call(bcap_dev->sd, pad, |
165 | enum_mbus_code, NULL, &code)) { | |
63b1a90d | 166 | num_formats++; |
ebcff5fc HV |
167 | code.index++; |
168 | } | |
63b1a90d SJ |
169 | if (!num_formats) |
170 | return -ENXIO; | |
171 | ||
172 | sf = kzalloc(num_formats * sizeof(*sf), GFP_KERNEL); | |
173 | if (!sf) | |
174 | return -ENOMEM; | |
175 | ||
176 | for (i = 0; i < num_formats; i++) { | |
ebcff5fc HV |
177 | code.index = i; |
178 | v4l2_subdev_call(bcap_dev->sd, pad, | |
179 | enum_mbus_code, NULL, &code); | |
63b1a90d | 180 | for (j = 0; j < BCAP_MAX_FMTS; j++) |
ebcff5fc | 181 | if (code.code == bcap_formats[j].mbus_code) |
63b1a90d SJ |
182 | break; |
183 | if (j == BCAP_MAX_FMTS) { | |
184 | /* we don't allow this sensor working with our bridge */ | |
185 | kfree(sf); | |
186 | return -EINVAL; | |
187 | } | |
188 | sf[i] = bcap_formats[j]; | |
189 | } | |
190 | bcap_dev->sensor_formats = sf; | |
191 | bcap_dev->num_sensor_formats = num_formats; | |
192 | return 0; | |
193 | } | |
194 | ||
195 | static void bcap_free_sensor_formats(struct bcap_device *bcap_dev) | |
196 | { | |
197 | bcap_dev->num_sensor_formats = 0; | |
198 | kfree(bcap_dev->sensor_formats); | |
199 | bcap_dev->sensor_formats = NULL; | |
200 | } | |
201 | ||
63b1a90d | 202 | static int bcap_queue_setup(struct vb2_queue *vq, |
63b1a90d | 203 | unsigned int *nbuffers, unsigned int *nplanes, |
36c0f8b3 | 204 | unsigned int sizes[], struct device *alloc_devs[]) |
63b1a90d SJ |
205 | { |
206 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vq); | |
207 | ||
f3140022 LP |
208 | if (vq->num_buffers + *nbuffers < 2) |
209 | *nbuffers = 2; | |
df9ecb0c HV |
210 | |
211 | if (*nplanes) | |
212 | return sizes[0] < bcap_dev->fmt.sizeimage ? -EINVAL : 0; | |
63b1a90d SJ |
213 | |
214 | *nplanes = 1; | |
df9ecb0c | 215 | sizes[0] = bcap_dev->fmt.sizeimage; |
63b1a90d SJ |
216 | |
217 | return 0; | |
218 | } | |
219 | ||
63b1a90d SJ |
220 | static int bcap_buffer_prepare(struct vb2_buffer *vb) |
221 | { | |
2d700715 | 222 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
63b1a90d | 223 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vb->vb2_queue); |
cd3c38ef | 224 | unsigned long size = bcap_dev->fmt.sizeimage; |
63b1a90d | 225 | |
63b1a90d SJ |
226 | if (vb2_plane_size(vb, 0) < size) { |
227 | v4l2_err(&bcap_dev->v4l2_dev, "buffer too small (%lu < %lu)\n", | |
228 | vb2_plane_size(vb, 0), size); | |
229 | return -EINVAL; | |
230 | } | |
cd3c38ef LP |
231 | vb2_set_plane_payload(vb, 0, size); |
232 | ||
2d700715 | 233 | vbuf->field = bcap_dev->fmt.field; |
63b1a90d SJ |
234 | |
235 | return 0; | |
236 | } | |
237 | ||
238 | static void bcap_buffer_queue(struct vb2_buffer *vb) | |
239 | { | |
2d700715 | 240 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
63b1a90d | 241 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vb->vb2_queue); |
2d700715 | 242 | struct bcap_buffer *buf = to_bcap_vb(vbuf); |
63b1a90d SJ |
243 | unsigned long flags; |
244 | ||
245 | spin_lock_irqsave(&bcap_dev->lock, flags); | |
246 | list_add_tail(&buf->list, &bcap_dev->dma_queue); | |
247 | spin_unlock_irqrestore(&bcap_dev->lock, flags); | |
248 | } | |
249 | ||
250 | static void bcap_buffer_cleanup(struct vb2_buffer *vb) | |
251 | { | |
2d700715 | 252 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
63b1a90d | 253 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vb->vb2_queue); |
2d700715 | 254 | struct bcap_buffer *buf = to_bcap_vb(vbuf); |
63b1a90d SJ |
255 | unsigned long flags; |
256 | ||
257 | spin_lock_irqsave(&bcap_dev->lock, flags); | |
258 | list_del_init(&buf->list); | |
259 | spin_unlock_irqrestore(&bcap_dev->lock, flags); | |
260 | } | |
261 | ||
63b1a90d SJ |
262 | static int bcap_start_streaming(struct vb2_queue *vq, unsigned int count) |
263 | { | |
264 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vq); | |
265 | struct ppi_if *ppi = bcap_dev->ppi; | |
6692871a | 266 | struct bcap_buffer *buf, *tmp; |
63b1a90d | 267 | struct ppi_params params; |
d61233bf | 268 | dma_addr_t addr; |
63b1a90d SJ |
269 | int ret; |
270 | ||
271 | /* enable streamon on the sub device */ | |
272 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_stream, 1); | |
273 | if (ret && (ret != -ENOIOCTLCMD)) { | |
274 | v4l2_err(&bcap_dev->v4l2_dev, "stream on failed in subdev\n"); | |
6692871a | 275 | goto err; |
63b1a90d SJ |
276 | } |
277 | ||
278 | /* set ppi params */ | |
279 | params.width = bcap_dev->fmt.width; | |
280 | params.height = bcap_dev->fmt.height; | |
281 | params.bpp = bcap_dev->bpp; | |
45b82596 | 282 | params.dlen = bcap_dev->dlen; |
63b1a90d SJ |
283 | params.ppi_control = bcap_dev->cfg->ppi_control; |
284 | params.int_mask = bcap_dev->cfg->int_mask; | |
45b82596 | 285 | if (bcap_dev->cfg->inputs[bcap_dev->cur_input].capabilities |
a8451ed2 | 286 | & V4L2_IN_CAP_DV_TIMINGS) { |
45b82596 SJ |
287 | struct v4l2_bt_timings *bt = &bcap_dev->dv_timings.bt; |
288 | ||
289 | params.hdelay = bt->hsync + bt->hbackporch; | |
290 | params.vdelay = bt->vsync + bt->vbackporch; | |
eacf8f9a HV |
291 | params.line = V4L2_DV_BT_FRAME_WIDTH(bt); |
292 | params.frame = V4L2_DV_BT_FRAME_HEIGHT(bt); | |
45b82596 SJ |
293 | } else if (bcap_dev->cfg->inputs[bcap_dev->cur_input].capabilities |
294 | & V4L2_IN_CAP_STD) { | |
295 | params.hdelay = 0; | |
296 | params.vdelay = 0; | |
297 | if (bcap_dev->std & V4L2_STD_525_60) { | |
298 | params.line = 858; | |
299 | params.frame = 525; | |
300 | } else { | |
301 | params.line = 864; | |
302 | params.frame = 625; | |
303 | } | |
304 | } else { | |
305 | params.hdelay = 0; | |
306 | params.vdelay = 0; | |
307 | params.line = params.width + bcap_dev->cfg->blank_pixels; | |
308 | params.frame = params.height; | |
309 | } | |
63b1a90d SJ |
310 | ret = ppi->ops->set_params(ppi, ¶ms); |
311 | if (ret < 0) { | |
312 | v4l2_err(&bcap_dev->v4l2_dev, | |
313 | "Error in setting ppi params\n"); | |
6692871a | 314 | goto err; |
63b1a90d SJ |
315 | } |
316 | ||
317 | /* attach ppi DMA irq handler */ | |
318 | ret = ppi->ops->attach_irq(ppi, bcap_isr); | |
319 | if (ret < 0) { | |
320 | v4l2_err(&bcap_dev->v4l2_dev, | |
321 | "Error in attaching interrupt handler\n"); | |
6692871a | 322 | goto err; |
63b1a90d SJ |
323 | } |
324 | ||
9d490e52 LP |
325 | bcap_dev->sequence = 0; |
326 | ||
16735d02 | 327 | reinit_completion(&bcap_dev->comp); |
63b1a90d | 328 | bcap_dev->stop = false; |
6692871a | 329 | |
d61233bf LP |
330 | /* get the next frame from the dma queue */ |
331 | bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next, | |
332 | struct bcap_buffer, list); | |
333 | /* remove buffer from the dma queue */ | |
334 | list_del_init(&bcap_dev->cur_frm->list); | |
2d700715 JS |
335 | addr = vb2_dma_contig_plane_dma_addr(&bcap_dev->cur_frm->vb.vb2_buf, |
336 | 0); | |
d61233bf LP |
337 | /* update DMA address */ |
338 | ppi->ops->update_addr(ppi, (unsigned long)addr); | |
339 | /* enable ppi */ | |
340 | ppi->ops->start(ppi); | |
341 | ||
63b1a90d | 342 | return 0; |
6692871a LP |
343 | |
344 | err: | |
345 | list_for_each_entry_safe(buf, tmp, &bcap_dev->dma_queue, list) { | |
346 | list_del(&buf->list); | |
2d700715 | 347 | vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_QUEUED); |
6692871a LP |
348 | } |
349 | ||
350 | return ret; | |
63b1a90d SJ |
351 | } |
352 | ||
e37559b2 | 353 | static void bcap_stop_streaming(struct vb2_queue *vq) |
63b1a90d SJ |
354 | { |
355 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vq); | |
356 | struct ppi_if *ppi = bcap_dev->ppi; | |
357 | int ret; | |
358 | ||
63b1a90d SJ |
359 | bcap_dev->stop = true; |
360 | wait_for_completion(&bcap_dev->comp); | |
361 | ppi->ops->stop(ppi); | |
362 | ppi->ops->detach_irq(ppi); | |
363 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_stream, 0); | |
364 | if (ret && (ret != -ENOIOCTLCMD)) | |
365 | v4l2_err(&bcap_dev->v4l2_dev, | |
366 | "stream off failed in subdev\n"); | |
367 | ||
368 | /* release all active buffers */ | |
2bf34b2f | 369 | if (bcap_dev->cur_frm) |
2d700715 JS |
370 | vb2_buffer_done(&bcap_dev->cur_frm->vb.vb2_buf, |
371 | VB2_BUF_STATE_ERROR); | |
2bf34b2f | 372 | |
63b1a90d | 373 | while (!list_empty(&bcap_dev->dma_queue)) { |
d78a4882 | 374 | bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next, |
63b1a90d | 375 | struct bcap_buffer, list); |
7ba3c21c | 376 | list_del_init(&bcap_dev->cur_frm->list); |
2d700715 JS |
377 | vb2_buffer_done(&bcap_dev->cur_frm->vb.vb2_buf, |
378 | VB2_BUF_STATE_ERROR); | |
63b1a90d | 379 | } |
63b1a90d SJ |
380 | } |
381 | ||
382 | static struct vb2_ops bcap_video_qops = { | |
383 | .queue_setup = bcap_queue_setup, | |
63b1a90d SJ |
384 | .buf_prepare = bcap_buffer_prepare, |
385 | .buf_cleanup = bcap_buffer_cleanup, | |
386 | .buf_queue = bcap_buffer_queue, | |
4d655ca4 PL |
387 | .wait_prepare = vb2_ops_wait_prepare, |
388 | .wait_finish = vb2_ops_wait_finish, | |
63b1a90d SJ |
389 | .start_streaming = bcap_start_streaming, |
390 | .stop_streaming = bcap_stop_streaming, | |
391 | }; | |
392 | ||
63b1a90d SJ |
393 | static irqreturn_t bcap_isr(int irq, void *dev_id) |
394 | { | |
395 | struct ppi_if *ppi = dev_id; | |
396 | struct bcap_device *bcap_dev = ppi->priv; | |
2d700715 JS |
397 | struct vb2_v4l2_buffer *vbuf = &bcap_dev->cur_frm->vb; |
398 | struct vb2_buffer *vb = &vbuf->vb2_buf; | |
63b1a90d SJ |
399 | dma_addr_t addr; |
400 | ||
401 | spin_lock(&bcap_dev->lock); | |
402 | ||
d78a4882 | 403 | if (!list_empty(&bcap_dev->dma_queue)) { |
d6dd645e | 404 | vb->timestamp = ktime_get_ns(); |
d78a4882 SJ |
405 | if (ppi->err) { |
406 | vb2_buffer_done(vb, VB2_BUF_STATE_ERROR); | |
407 | ppi->err = false; | |
408 | } else { | |
2d700715 | 409 | vbuf->sequence = bcap_dev->sequence++; |
d78a4882 SJ |
410 | vb2_buffer_done(vb, VB2_BUF_STATE_DONE); |
411 | } | |
412 | bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next, | |
413 | struct bcap_buffer, list); | |
7ba3c21c | 414 | list_del_init(&bcap_dev->cur_frm->list); |
d78a4882 SJ |
415 | } else { |
416 | /* clear error flag, we will get a new frame */ | |
417 | if (ppi->err) | |
418 | ppi->err = false; | |
63b1a90d SJ |
419 | } |
420 | ||
421 | ppi->ops->stop(ppi); | |
422 | ||
423 | if (bcap_dev->stop) { | |
424 | complete(&bcap_dev->comp); | |
425 | } else { | |
2d700715 JS |
426 | addr = vb2_dma_contig_plane_dma_addr( |
427 | &bcap_dev->cur_frm->vb.vb2_buf, 0); | |
d78a4882 | 428 | ppi->ops->update_addr(ppi, (unsigned long)addr); |
63b1a90d SJ |
429 | ppi->ops->start(ppi); |
430 | } | |
431 | ||
432 | spin_unlock(&bcap_dev->lock); | |
433 | ||
434 | return IRQ_HANDLED; | |
435 | } | |
436 | ||
63b1a90d SJ |
437 | static int bcap_querystd(struct file *file, void *priv, v4l2_std_id *std) |
438 | { | |
439 | struct bcap_device *bcap_dev = video_drvdata(file); | |
fe00b716 LP |
440 | struct v4l2_input input; |
441 | ||
442 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; | |
443 | if (!(input.capabilities & V4L2_IN_CAP_STD)) | |
444 | return -ENODATA; | |
63b1a90d SJ |
445 | |
446 | return v4l2_subdev_call(bcap_dev->sd, video, querystd, std); | |
447 | } | |
448 | ||
449 | static int bcap_g_std(struct file *file, void *priv, v4l2_std_id *std) | |
450 | { | |
451 | struct bcap_device *bcap_dev = video_drvdata(file); | |
fe00b716 LP |
452 | struct v4l2_input input; |
453 | ||
454 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; | |
455 | if (!(input.capabilities & V4L2_IN_CAP_STD)) | |
456 | return -ENODATA; | |
63b1a90d SJ |
457 | |
458 | *std = bcap_dev->std; | |
459 | return 0; | |
460 | } | |
461 | ||
314527ac | 462 | static int bcap_s_std(struct file *file, void *priv, v4l2_std_id std) |
63b1a90d SJ |
463 | { |
464 | struct bcap_device *bcap_dev = video_drvdata(file); | |
fe00b716 | 465 | struct v4l2_input input; |
63b1a90d SJ |
466 | int ret; |
467 | ||
fe00b716 LP |
468 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; |
469 | if (!(input.capabilities & V4L2_IN_CAP_STD)) | |
470 | return -ENODATA; | |
471 | ||
63b1a90d SJ |
472 | if (vb2_is_busy(&bcap_dev->buffer_queue)) |
473 | return -EBUSY; | |
474 | ||
8774bed9 | 475 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_std, std); |
63b1a90d SJ |
476 | if (ret < 0) |
477 | return ret; | |
478 | ||
314527ac | 479 | bcap_dev->std = std; |
63b1a90d SJ |
480 | return 0; |
481 | } | |
482 | ||
ead156c4 SJ |
483 | static int bcap_enum_dv_timings(struct file *file, void *priv, |
484 | struct v4l2_enum_dv_timings *timings) | |
485 | { | |
486 | struct bcap_device *bcap_dev = video_drvdata(file); | |
116a6488 LP |
487 | struct v4l2_input input; |
488 | ||
489 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; | |
490 | if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS)) | |
491 | return -ENODATA; | |
ead156c4 | 492 | |
f1f8e434 LP |
493 | timings->pad = 0; |
494 | ||
495 | return v4l2_subdev_call(bcap_dev->sd, pad, | |
ead156c4 SJ |
496 | enum_dv_timings, timings); |
497 | } | |
498 | ||
499 | static int bcap_query_dv_timings(struct file *file, void *priv, | |
45b82596 SJ |
500 | struct v4l2_dv_timings *timings) |
501 | { | |
502 | struct bcap_device *bcap_dev = video_drvdata(file); | |
116a6488 LP |
503 | struct v4l2_input input; |
504 | ||
505 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; | |
506 | if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS)) | |
507 | return -ENODATA; | |
45b82596 | 508 | |
ead156c4 SJ |
509 | return v4l2_subdev_call(bcap_dev->sd, video, |
510 | query_dv_timings, timings); | |
511 | } | |
45b82596 | 512 | |
ead156c4 SJ |
513 | static int bcap_g_dv_timings(struct file *file, void *priv, |
514 | struct v4l2_dv_timings *timings) | |
515 | { | |
516 | struct bcap_device *bcap_dev = video_drvdata(file); | |
116a6488 LP |
517 | struct v4l2_input input; |
518 | ||
519 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; | |
520 | if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS)) | |
521 | return -ENODATA; | |
ead156c4 SJ |
522 | |
523 | *timings = bcap_dev->dv_timings; | |
45b82596 SJ |
524 | return 0; |
525 | } | |
526 | ||
527 | static int bcap_s_dv_timings(struct file *file, void *priv, | |
528 | struct v4l2_dv_timings *timings) | |
529 | { | |
530 | struct bcap_device *bcap_dev = video_drvdata(file); | |
116a6488 | 531 | struct v4l2_input input; |
45b82596 | 532 | int ret; |
116a6488 LP |
533 | |
534 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; | |
535 | if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS)) | |
536 | return -ENODATA; | |
537 | ||
45b82596 SJ |
538 | if (vb2_is_busy(&bcap_dev->buffer_queue)) |
539 | return -EBUSY; | |
540 | ||
541 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_dv_timings, timings); | |
542 | if (ret < 0) | |
543 | return ret; | |
544 | ||
545 | bcap_dev->dv_timings = *timings; | |
546 | return 0; | |
547 | } | |
548 | ||
63b1a90d SJ |
549 | static int bcap_enum_input(struct file *file, void *priv, |
550 | struct v4l2_input *input) | |
551 | { | |
552 | struct bcap_device *bcap_dev = video_drvdata(file); | |
553 | struct bfin_capture_config *config = bcap_dev->cfg; | |
554 | int ret; | |
555 | u32 status; | |
556 | ||
557 | if (input->index >= config->num_inputs) | |
558 | return -EINVAL; | |
559 | ||
560 | *input = config->inputs[input->index]; | |
561 | /* get input status */ | |
562 | ret = v4l2_subdev_call(bcap_dev->sd, video, g_input_status, &status); | |
563 | if (!ret) | |
564 | input->status = status; | |
565 | return 0; | |
566 | } | |
567 | ||
568 | static int bcap_g_input(struct file *file, void *priv, unsigned int *index) | |
569 | { | |
570 | struct bcap_device *bcap_dev = video_drvdata(file); | |
571 | ||
572 | *index = bcap_dev->cur_input; | |
573 | return 0; | |
574 | } | |
575 | ||
576 | static int bcap_s_input(struct file *file, void *priv, unsigned int index) | |
577 | { | |
578 | struct bcap_device *bcap_dev = video_drvdata(file); | |
579 | struct bfin_capture_config *config = bcap_dev->cfg; | |
580 | struct bcap_route *route; | |
581 | int ret; | |
582 | ||
583 | if (vb2_is_busy(&bcap_dev->buffer_queue)) | |
584 | return -EBUSY; | |
585 | ||
586 | if (index >= config->num_inputs) | |
587 | return -EINVAL; | |
588 | ||
589 | route = &config->routes[index]; | |
590 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_routing, | |
591 | route->input, route->output, 0); | |
592 | if ((ret < 0) && (ret != -ENOIOCTLCMD)) { | |
593 | v4l2_err(&bcap_dev->v4l2_dev, "Failed to set input\n"); | |
594 | return ret; | |
595 | } | |
596 | bcap_dev->cur_input = index; | |
45b82596 SJ |
597 | /* if this route has specific config, update ppi control */ |
598 | if (route->ppi_control) | |
599 | config->ppi_control = route->ppi_control; | |
63b1a90d SJ |
600 | return 0; |
601 | } | |
602 | ||
603 | static int bcap_try_format(struct bcap_device *bcap, | |
604 | struct v4l2_pix_format *pixfmt, | |
45b82596 | 605 | struct bcap_format *bcap_fmt) |
63b1a90d SJ |
606 | { |
607 | struct bcap_format *sf = bcap->sensor_formats; | |
608 | struct bcap_format *fmt = NULL; | |
5eab4983 HV |
609 | struct v4l2_subdev_pad_config pad_cfg; |
610 | struct v4l2_subdev_format format = { | |
611 | .which = V4L2_SUBDEV_FORMAT_TRY, | |
612 | }; | |
63b1a90d SJ |
613 | int ret, i; |
614 | ||
615 | for (i = 0; i < bcap->num_sensor_formats; i++) { | |
616 | fmt = &sf[i]; | |
617 | if (pixfmt->pixelformat == fmt->pixelformat) | |
618 | break; | |
619 | } | |
620 | if (i == bcap->num_sensor_formats) | |
621 | fmt = &sf[0]; | |
622 | ||
5eab4983 HV |
623 | v4l2_fill_mbus_format(&format.format, pixfmt, fmt->mbus_code); |
624 | ret = v4l2_subdev_call(bcap->sd, pad, set_fmt, &pad_cfg, | |
625 | &format); | |
63b1a90d SJ |
626 | if (ret < 0) |
627 | return ret; | |
5eab4983 | 628 | v4l2_fill_pix_format(pixfmt, &format.format); |
45b82596 SJ |
629 | if (bcap_fmt) { |
630 | for (i = 0; i < bcap->num_sensor_formats; i++) { | |
631 | fmt = &sf[i]; | |
5eab4983 | 632 | if (format.format.code == fmt->mbus_code) |
45b82596 SJ |
633 | break; |
634 | } | |
635 | *bcap_fmt = *fmt; | |
636 | } | |
63b1a90d SJ |
637 | pixfmt->bytesperline = pixfmt->width * fmt->bpp / 8; |
638 | pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height; | |
639 | return 0; | |
640 | } | |
641 | ||
642 | static int bcap_enum_fmt_vid_cap(struct file *file, void *priv, | |
643 | struct v4l2_fmtdesc *fmt) | |
644 | { | |
645 | struct bcap_device *bcap_dev = video_drvdata(file); | |
646 | struct bcap_format *sf = bcap_dev->sensor_formats; | |
647 | ||
648 | if (fmt->index >= bcap_dev->num_sensor_formats) | |
649 | return -EINVAL; | |
650 | ||
651 | fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
652 | strlcpy(fmt->description, | |
653 | sf[fmt->index].desc, | |
654 | sizeof(fmt->description)); | |
655 | fmt->pixelformat = sf[fmt->index].pixelformat; | |
656 | return 0; | |
657 | } | |
658 | ||
659 | static int bcap_try_fmt_vid_cap(struct file *file, void *priv, | |
660 | struct v4l2_format *fmt) | |
661 | { | |
662 | struct bcap_device *bcap_dev = video_drvdata(file); | |
663 | struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; | |
664 | ||
45b82596 | 665 | return bcap_try_format(bcap_dev, pixfmt, NULL); |
63b1a90d SJ |
666 | } |
667 | ||
668 | static int bcap_g_fmt_vid_cap(struct file *file, void *priv, | |
669 | struct v4l2_format *fmt) | |
670 | { | |
671 | struct bcap_device *bcap_dev = video_drvdata(file); | |
672 | ||
673 | fmt->fmt.pix = bcap_dev->fmt; | |
674 | return 0; | |
675 | } | |
676 | ||
677 | static int bcap_s_fmt_vid_cap(struct file *file, void *priv, | |
678 | struct v4l2_format *fmt) | |
679 | { | |
680 | struct bcap_device *bcap_dev = video_drvdata(file); | |
ebf984bb HV |
681 | struct v4l2_subdev_format format = { |
682 | .which = V4L2_SUBDEV_FORMAT_ACTIVE, | |
683 | }; | |
45b82596 | 684 | struct bcap_format bcap_fmt; |
63b1a90d | 685 | struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; |
45b82596 | 686 | int ret; |
63b1a90d SJ |
687 | |
688 | if (vb2_is_busy(&bcap_dev->buffer_queue)) | |
689 | return -EBUSY; | |
690 | ||
691 | /* see if format works */ | |
45b82596 | 692 | ret = bcap_try_format(bcap_dev, pixfmt, &bcap_fmt); |
63b1a90d SJ |
693 | if (ret < 0) |
694 | return ret; | |
695 | ||
ebf984bb HV |
696 | v4l2_fill_mbus_format(&format.format, pixfmt, bcap_fmt.mbus_code); |
697 | ret = v4l2_subdev_call(bcap_dev->sd, pad, set_fmt, NULL, &format); | |
63b1a90d SJ |
698 | if (ret < 0) |
699 | return ret; | |
700 | bcap_dev->fmt = *pixfmt; | |
45b82596 SJ |
701 | bcap_dev->bpp = bcap_fmt.bpp; |
702 | bcap_dev->dlen = bcap_fmt.dlen; | |
63b1a90d SJ |
703 | return 0; |
704 | } | |
705 | ||
706 | static int bcap_querycap(struct file *file, void *priv, | |
707 | struct v4l2_capability *cap) | |
708 | { | |
709 | struct bcap_device *bcap_dev = video_drvdata(file); | |
710 | ||
a020c747 HV |
711 | cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; |
712 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; | |
63b1a90d SJ |
713 | strlcpy(cap->driver, CAPTURE_DRV_NAME, sizeof(cap->driver)); |
714 | strlcpy(cap->bus_info, "Blackfin Platform", sizeof(cap->bus_info)); | |
715 | strlcpy(cap->card, bcap_dev->cfg->card_name, sizeof(cap->card)); | |
716 | return 0; | |
717 | } | |
718 | ||
719 | static int bcap_g_parm(struct file *file, void *fh, | |
720 | struct v4l2_streamparm *a) | |
721 | { | |
722 | struct bcap_device *bcap_dev = video_drvdata(file); | |
723 | ||
724 | if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
725 | return -EINVAL; | |
726 | return v4l2_subdev_call(bcap_dev->sd, video, g_parm, a); | |
727 | } | |
728 | ||
729 | static int bcap_s_parm(struct file *file, void *fh, | |
730 | struct v4l2_streamparm *a) | |
731 | { | |
732 | struct bcap_device *bcap_dev = video_drvdata(file); | |
733 | ||
734 | if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
735 | return -EINVAL; | |
736 | return v4l2_subdev_call(bcap_dev->sd, video, s_parm, a); | |
737 | } | |
738 | ||
63b1a90d SJ |
739 | static int bcap_log_status(struct file *file, void *priv) |
740 | { | |
741 | struct bcap_device *bcap_dev = video_drvdata(file); | |
742 | /* status for sub devices */ | |
743 | v4l2_device_call_all(&bcap_dev->v4l2_dev, 0, core, log_status); | |
744 | return 0; | |
745 | } | |
746 | ||
747 | static const struct v4l2_ioctl_ops bcap_ioctl_ops = { | |
748 | .vidioc_querycap = bcap_querycap, | |
749 | .vidioc_g_fmt_vid_cap = bcap_g_fmt_vid_cap, | |
750 | .vidioc_enum_fmt_vid_cap = bcap_enum_fmt_vid_cap, | |
751 | .vidioc_s_fmt_vid_cap = bcap_s_fmt_vid_cap, | |
752 | .vidioc_try_fmt_vid_cap = bcap_try_fmt_vid_cap, | |
753 | .vidioc_enum_input = bcap_enum_input, | |
754 | .vidioc_g_input = bcap_g_input, | |
755 | .vidioc_s_input = bcap_s_input, | |
756 | .vidioc_querystd = bcap_querystd, | |
757 | .vidioc_s_std = bcap_s_std, | |
758 | .vidioc_g_std = bcap_g_std, | |
45b82596 SJ |
759 | .vidioc_s_dv_timings = bcap_s_dv_timings, |
760 | .vidioc_g_dv_timings = bcap_g_dv_timings, | |
ead156c4 SJ |
761 | .vidioc_query_dv_timings = bcap_query_dv_timings, |
762 | .vidioc_enum_dv_timings = bcap_enum_dv_timings, | |
d61233bf | 763 | .vidioc_reqbufs = vb2_ioctl_reqbufs, |
8df229bd | 764 | .vidioc_create_bufs = vb2_ioctl_create_bufs, |
d61233bf LP |
765 | .vidioc_querybuf = vb2_ioctl_querybuf, |
766 | .vidioc_qbuf = vb2_ioctl_qbuf, | |
767 | .vidioc_dqbuf = vb2_ioctl_dqbuf, | |
812447e5 | 768 | .vidioc_expbuf = vb2_ioctl_expbuf, |
d61233bf LP |
769 | .vidioc_streamon = vb2_ioctl_streamon, |
770 | .vidioc_streamoff = vb2_ioctl_streamoff, | |
63b1a90d SJ |
771 | .vidioc_g_parm = bcap_g_parm, |
772 | .vidioc_s_parm = bcap_s_parm, | |
63b1a90d SJ |
773 | .vidioc_log_status = bcap_log_status, |
774 | }; | |
775 | ||
776 | static struct v4l2_file_operations bcap_fops = { | |
777 | .owner = THIS_MODULE, | |
f0e91c65 LP |
778 | .open = v4l2_fh_open, |
779 | .release = vb2_fop_release, | |
63b1a90d | 780 | .unlocked_ioctl = video_ioctl2, |
8fd05b7e | 781 | .mmap = vb2_fop_mmap, |
63b1a90d | 782 | #ifndef CONFIG_MMU |
225ccaa3 | 783 | .get_unmapped_area = vb2_fop_get_unmapped_area, |
63b1a90d | 784 | #endif |
8fd05b7e | 785 | .poll = vb2_fop_poll |
63b1a90d SJ |
786 | }; |
787 | ||
4c62e976 | 788 | static int bcap_probe(struct platform_device *pdev) |
63b1a90d SJ |
789 | { |
790 | struct bcap_device *bcap_dev; | |
791 | struct video_device *vfd; | |
792 | struct i2c_adapter *i2c_adap; | |
793 | struct bfin_capture_config *config; | |
794 | struct vb2_queue *q; | |
45b82596 | 795 | struct bcap_route *route; |
63b1a90d SJ |
796 | int ret; |
797 | ||
798 | config = pdev->dev.platform_data; | |
d9fdbeff | 799 | if (!config || !config->num_inputs) { |
63b1a90d SJ |
800 | v4l2_err(pdev->dev.driver, "Unable to get board config\n"); |
801 | return -ENODEV; | |
802 | } | |
803 | ||
804 | bcap_dev = kzalloc(sizeof(*bcap_dev), GFP_KERNEL); | |
805 | if (!bcap_dev) { | |
806 | v4l2_err(pdev->dev.driver, "Unable to alloc bcap_dev\n"); | |
807 | return -ENOMEM; | |
808 | } | |
809 | ||
810 | bcap_dev->cfg = config; | |
811 | ||
f7d0e6d6 | 812 | bcap_dev->ppi = ppi_create_instance(pdev, config->ppi_info); |
63b1a90d SJ |
813 | if (!bcap_dev->ppi) { |
814 | v4l2_err(pdev->dev.driver, "Unable to create ppi\n"); | |
815 | ret = -ENODEV; | |
816 | goto err_free_dev; | |
817 | } | |
818 | bcap_dev->ppi->priv = bcap_dev; | |
819 | ||
afb7a966 | 820 | vfd = &bcap_dev->video_dev; |
63b1a90d | 821 | /* initialize field of video device */ |
afb7a966 | 822 | vfd->release = video_device_release_empty; |
63b1a90d SJ |
823 | vfd->fops = &bcap_fops; |
824 | vfd->ioctl_ops = &bcap_ioctl_ops; | |
825 | vfd->tvnorms = 0; | |
826 | vfd->v4l2_dev = &bcap_dev->v4l2_dev; | |
63b1a90d | 827 | strncpy(vfd->name, CAPTURE_DRV_NAME, sizeof(vfd->name)); |
63b1a90d SJ |
828 | |
829 | ret = v4l2_device_register(&pdev->dev, &bcap_dev->v4l2_dev); | |
830 | if (ret) { | |
831 | v4l2_err(pdev->dev.driver, | |
832 | "Unable to register v4l2 device\n"); | |
53ddcc68 | 833 | goto err_free_ppi; |
63b1a90d SJ |
834 | } |
835 | v4l2_info(&bcap_dev->v4l2_dev, "v4l2 device registered\n"); | |
836 | ||
837 | bcap_dev->v4l2_dev.ctrl_handler = &bcap_dev->ctrl_handler; | |
838 | ret = v4l2_ctrl_handler_init(&bcap_dev->ctrl_handler, 0); | |
839 | if (ret) { | |
840 | v4l2_err(&bcap_dev->v4l2_dev, | |
841 | "Unable to init control handler\n"); | |
842 | goto err_unreg_v4l2; | |
843 | } | |
844 | ||
845 | spin_lock_init(&bcap_dev->lock); | |
846 | /* initialize queue */ | |
847 | q = &bcap_dev->buffer_queue; | |
848 | q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
70753b5e | 849 | q->io_modes = VB2_MMAP | VB2_DMABUF; |
63b1a90d SJ |
850 | q->drv_priv = bcap_dev; |
851 | q->buf_struct_size = sizeof(struct bcap_buffer); | |
852 | q->ops = &bcap_video_qops; | |
853 | q->mem_ops = &vb2_dma_contig_memops; | |
ade48681 | 854 | q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
4d655ca4 | 855 | q->lock = &bcap_dev->mutex; |
5f65ca81 | 856 | q->min_buffers_needed = 1; |
53ddcc68 | 857 | q->dev = &pdev->dev; |
63b1a90d | 858 | |
20420f92 HV |
859 | ret = vb2_queue_init(q); |
860 | if (ret) | |
861 | goto err_free_handler; | |
63b1a90d SJ |
862 | |
863 | mutex_init(&bcap_dev->mutex); | |
864 | init_completion(&bcap_dev->comp); | |
865 | ||
866 | /* init video dma queues */ | |
867 | INIT_LIST_HEAD(&bcap_dev->dma_queue); | |
868 | ||
869 | vfd->lock = &bcap_dev->mutex; | |
8fd05b7e | 870 | vfd->queue = q; |
63b1a90d SJ |
871 | |
872 | /* register video device */ | |
afb7a966 | 873 | ret = video_register_device(&bcap_dev->video_dev, VFL_TYPE_GRABBER, -1); |
63b1a90d SJ |
874 | if (ret) { |
875 | v4l2_err(&bcap_dev->v4l2_dev, | |
876 | "Unable to register video device\n"); | |
877 | goto err_free_handler; | |
878 | } | |
afb7a966 | 879 | video_set_drvdata(&bcap_dev->video_dev, bcap_dev); |
63b1a90d SJ |
880 | v4l2_info(&bcap_dev->v4l2_dev, "video device registered as: %s\n", |
881 | video_device_node_name(vfd)); | |
882 | ||
883 | /* load up the subdevice */ | |
884 | i2c_adap = i2c_get_adapter(config->i2c_adapter_id); | |
885 | if (!i2c_adap) { | |
886 | v4l2_err(&bcap_dev->v4l2_dev, | |
887 | "Unable to find i2c adapter\n"); | |
150a1363 | 888 | ret = -ENODEV; |
63b1a90d SJ |
889 | goto err_unreg_vdev; |
890 | ||
891 | } | |
892 | bcap_dev->sd = v4l2_i2c_new_subdev_board(&bcap_dev->v4l2_dev, | |
893 | i2c_adap, | |
894 | &config->board_info, | |
895 | NULL); | |
896 | if (bcap_dev->sd) { | |
897 | int i; | |
45b82596 | 898 | |
63b1a90d SJ |
899 | /* update tvnorms from the sub devices */ |
900 | for (i = 0; i < config->num_inputs; i++) | |
901 | vfd->tvnorms |= config->inputs[i].std; | |
902 | } else { | |
903 | v4l2_err(&bcap_dev->v4l2_dev, | |
904 | "Unable to register sub device\n"); | |
d9fdbeff | 905 | ret = -ENODEV; |
63b1a90d SJ |
906 | goto err_unreg_vdev; |
907 | } | |
908 | ||
909 | v4l2_info(&bcap_dev->v4l2_dev, "v4l2 sub device registered\n"); | |
910 | ||
45b82596 SJ |
911 | /* |
912 | * explicitly set input, otherwise some boards | |
913 | * may not work at the state as we expected | |
914 | */ | |
915 | route = &config->routes[0]; | |
916 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_routing, | |
917 | route->input, route->output, 0); | |
918 | if ((ret < 0) && (ret != -ENOIOCTLCMD)) { | |
919 | v4l2_err(&bcap_dev->v4l2_dev, "Failed to set input\n"); | |
920 | goto err_unreg_vdev; | |
921 | } | |
922 | bcap_dev->cur_input = 0; | |
923 | /* if this route has specific config, update ppi control */ | |
924 | if (route->ppi_control) | |
925 | config->ppi_control = route->ppi_control; | |
926 | ||
63b1a90d | 927 | /* now we can probe the default state */ |
45b82596 | 928 | if (config->inputs[0].capabilities & V4L2_IN_CAP_STD) { |
63b1a90d | 929 | v4l2_std_id std; |
8774bed9 | 930 | ret = v4l2_subdev_call(bcap_dev->sd, video, g_std, &std); |
63b1a90d SJ |
931 | if (ret) { |
932 | v4l2_err(&bcap_dev->v4l2_dev, | |
933 | "Unable to get std\n"); | |
934 | goto err_unreg_vdev; | |
935 | } | |
936 | bcap_dev->std = std; | |
937 | } | |
a8451ed2 | 938 | if (config->inputs[0].capabilities & V4L2_IN_CAP_DV_TIMINGS) { |
45b82596 SJ |
939 | struct v4l2_dv_timings dv_timings; |
940 | ret = v4l2_subdev_call(bcap_dev->sd, video, | |
941 | g_dv_timings, &dv_timings); | |
942 | if (ret) { | |
943 | v4l2_err(&bcap_dev->v4l2_dev, | |
944 | "Unable to get dv timings\n"); | |
945 | goto err_unreg_vdev; | |
946 | } | |
947 | bcap_dev->dv_timings = dv_timings; | |
948 | } | |
63b1a90d SJ |
949 | ret = bcap_init_sensor_formats(bcap_dev); |
950 | if (ret) { | |
951 | v4l2_err(&bcap_dev->v4l2_dev, | |
952 | "Unable to create sensor formats table\n"); | |
953 | goto err_unreg_vdev; | |
954 | } | |
955 | return 0; | |
956 | err_unreg_vdev: | |
afb7a966 | 957 | video_unregister_device(&bcap_dev->video_dev); |
63b1a90d SJ |
958 | err_free_handler: |
959 | v4l2_ctrl_handler_free(&bcap_dev->ctrl_handler); | |
960 | err_unreg_v4l2: | |
961 | v4l2_device_unregister(&bcap_dev->v4l2_dev); | |
63b1a90d SJ |
962 | err_free_ppi: |
963 | ppi_delete_instance(bcap_dev->ppi); | |
964 | err_free_dev: | |
965 | kfree(bcap_dev); | |
966 | return ret; | |
967 | } | |
968 | ||
4c62e976 | 969 | static int bcap_remove(struct platform_device *pdev) |
63b1a90d SJ |
970 | { |
971 | struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); | |
972 | struct bcap_device *bcap_dev = container_of(v4l2_dev, | |
973 | struct bcap_device, v4l2_dev); | |
974 | ||
975 | bcap_free_sensor_formats(bcap_dev); | |
afb7a966 | 976 | video_unregister_device(&bcap_dev->video_dev); |
63b1a90d SJ |
977 | v4l2_ctrl_handler_free(&bcap_dev->ctrl_handler); |
978 | v4l2_device_unregister(v4l2_dev); | |
63b1a90d SJ |
979 | ppi_delete_instance(bcap_dev->ppi); |
980 | kfree(bcap_dev); | |
981 | return 0; | |
982 | } | |
983 | ||
984 | static struct platform_driver bcap_driver = { | |
985 | .driver = { | |
986 | .name = CAPTURE_DRV_NAME, | |
63b1a90d SJ |
987 | }, |
988 | .probe = bcap_probe, | |
4c62e976 | 989 | .remove = bcap_remove, |
63b1a90d | 990 | }; |
7f2b3a7d | 991 | module_platform_driver(bcap_driver); |
63b1a90d SJ |
992 | |
993 | MODULE_DESCRIPTION("Analog Devices blackfin video capture driver"); | |
994 | MODULE_AUTHOR("Scott Jiang <Scott.Jiang.Linux@gmail.com>"); | |
995 | MODULE_LICENSE("GPL v2"); |