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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 | ||
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 | ||
150 | static struct bcap_buffer *to_bcap_vb(struct vb2_buffer *vb) | |
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 | { | |
27ffaeb0 | 157 | u32 code; |
63b1a90d SJ |
158 | struct bcap_format *sf; |
159 | unsigned int num_formats = 0; | |
160 | int i, j; | |
161 | ||
162 | while (!v4l2_subdev_call(bcap_dev->sd, video, | |
163 | enum_mbus_fmt, num_formats, &code)) | |
164 | num_formats++; | |
165 | if (!num_formats) | |
166 | return -ENXIO; | |
167 | ||
168 | sf = kzalloc(num_formats * sizeof(*sf), GFP_KERNEL); | |
169 | if (!sf) | |
170 | return -ENOMEM; | |
171 | ||
172 | for (i = 0; i < num_formats; i++) { | |
173 | v4l2_subdev_call(bcap_dev->sd, video, | |
174 | enum_mbus_fmt, i, &code); | |
175 | for (j = 0; j < BCAP_MAX_FMTS; j++) | |
176 | if (code == bcap_formats[j].mbus_code) | |
177 | break; | |
178 | if (j == BCAP_MAX_FMTS) { | |
179 | /* we don't allow this sensor working with our bridge */ | |
180 | kfree(sf); | |
181 | return -EINVAL; | |
182 | } | |
183 | sf[i] = bcap_formats[j]; | |
184 | } | |
185 | bcap_dev->sensor_formats = sf; | |
186 | bcap_dev->num_sensor_formats = num_formats; | |
187 | return 0; | |
188 | } | |
189 | ||
190 | static void bcap_free_sensor_formats(struct bcap_device *bcap_dev) | |
191 | { | |
192 | bcap_dev->num_sensor_formats = 0; | |
193 | kfree(bcap_dev->sensor_formats); | |
194 | bcap_dev->sensor_formats = NULL; | |
195 | } | |
196 | ||
63b1a90d SJ |
197 | #ifndef CONFIG_MMU |
198 | static unsigned long bcap_get_unmapped_area(struct file *file, | |
199 | unsigned long addr, | |
200 | unsigned long len, | |
201 | unsigned long pgoff, | |
202 | unsigned long flags) | |
203 | { | |
204 | struct bcap_device *bcap_dev = video_drvdata(file); | |
205 | ||
206 | return vb2_get_unmapped_area(&bcap_dev->buffer_queue, | |
207 | addr, | |
208 | len, | |
209 | pgoff, | |
210 | flags); | |
211 | } | |
212 | #endif | |
213 | ||
63b1a90d SJ |
214 | static int bcap_queue_setup(struct vb2_queue *vq, |
215 | const struct v4l2_format *fmt, | |
216 | unsigned int *nbuffers, unsigned int *nplanes, | |
217 | unsigned int sizes[], void *alloc_ctxs[]) | |
218 | { | |
219 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vq); | |
220 | ||
f3140022 LP |
221 | if (fmt && fmt->fmt.pix.sizeimage < bcap_dev->fmt.sizeimage) |
222 | return -EINVAL; | |
223 | ||
224 | if (vq->num_buffers + *nbuffers < 2) | |
225 | *nbuffers = 2; | |
63b1a90d SJ |
226 | |
227 | *nplanes = 1; | |
f3140022 | 228 | sizes[0] = fmt ? fmt->fmt.pix.sizeimage : bcap_dev->fmt.sizeimage; |
63b1a90d SJ |
229 | alloc_ctxs[0] = bcap_dev->alloc_ctx; |
230 | ||
231 | return 0; | |
232 | } | |
233 | ||
63b1a90d SJ |
234 | static int bcap_buffer_prepare(struct vb2_buffer *vb) |
235 | { | |
236 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vb->vb2_queue); | |
cd3c38ef | 237 | unsigned long size = bcap_dev->fmt.sizeimage; |
63b1a90d | 238 | |
63b1a90d SJ |
239 | if (vb2_plane_size(vb, 0) < size) { |
240 | v4l2_err(&bcap_dev->v4l2_dev, "buffer too small (%lu < %lu)\n", | |
241 | vb2_plane_size(vb, 0), size); | |
242 | return -EINVAL; | |
243 | } | |
cd3c38ef LP |
244 | vb2_set_plane_payload(vb, 0, size); |
245 | ||
246 | vb->v4l2_buf.field = bcap_dev->fmt.field; | |
63b1a90d SJ |
247 | |
248 | return 0; | |
249 | } | |
250 | ||
251 | static void bcap_buffer_queue(struct vb2_buffer *vb) | |
252 | { | |
253 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vb->vb2_queue); | |
254 | struct bcap_buffer *buf = to_bcap_vb(vb); | |
255 | unsigned long flags; | |
256 | ||
257 | spin_lock_irqsave(&bcap_dev->lock, flags); | |
258 | list_add_tail(&buf->list, &bcap_dev->dma_queue); | |
259 | spin_unlock_irqrestore(&bcap_dev->lock, flags); | |
260 | } | |
261 | ||
262 | static void bcap_buffer_cleanup(struct vb2_buffer *vb) | |
263 | { | |
264 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vb->vb2_queue); | |
265 | struct bcap_buffer *buf = to_bcap_vb(vb); | |
266 | unsigned long flags; | |
267 | ||
268 | spin_lock_irqsave(&bcap_dev->lock, flags); | |
269 | list_del_init(&buf->list); | |
270 | spin_unlock_irqrestore(&bcap_dev->lock, flags); | |
271 | } | |
272 | ||
63b1a90d SJ |
273 | static int bcap_start_streaming(struct vb2_queue *vq, unsigned int count) |
274 | { | |
275 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vq); | |
276 | struct ppi_if *ppi = bcap_dev->ppi; | |
6692871a | 277 | struct bcap_buffer *buf, *tmp; |
63b1a90d | 278 | struct ppi_params params; |
d61233bf | 279 | dma_addr_t addr; |
63b1a90d SJ |
280 | int ret; |
281 | ||
282 | /* enable streamon on the sub device */ | |
283 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_stream, 1); | |
284 | if (ret && (ret != -ENOIOCTLCMD)) { | |
285 | v4l2_err(&bcap_dev->v4l2_dev, "stream on failed in subdev\n"); | |
6692871a | 286 | goto err; |
63b1a90d SJ |
287 | } |
288 | ||
289 | /* set ppi params */ | |
290 | params.width = bcap_dev->fmt.width; | |
291 | params.height = bcap_dev->fmt.height; | |
292 | params.bpp = bcap_dev->bpp; | |
45b82596 | 293 | params.dlen = bcap_dev->dlen; |
63b1a90d SJ |
294 | params.ppi_control = bcap_dev->cfg->ppi_control; |
295 | params.int_mask = bcap_dev->cfg->int_mask; | |
45b82596 | 296 | if (bcap_dev->cfg->inputs[bcap_dev->cur_input].capabilities |
a8451ed2 | 297 | & V4L2_IN_CAP_DV_TIMINGS) { |
45b82596 SJ |
298 | struct v4l2_bt_timings *bt = &bcap_dev->dv_timings.bt; |
299 | ||
300 | params.hdelay = bt->hsync + bt->hbackporch; | |
301 | params.vdelay = bt->vsync + bt->vbackporch; | |
eacf8f9a HV |
302 | params.line = V4L2_DV_BT_FRAME_WIDTH(bt); |
303 | params.frame = V4L2_DV_BT_FRAME_HEIGHT(bt); | |
45b82596 SJ |
304 | } else if (bcap_dev->cfg->inputs[bcap_dev->cur_input].capabilities |
305 | & V4L2_IN_CAP_STD) { | |
306 | params.hdelay = 0; | |
307 | params.vdelay = 0; | |
308 | if (bcap_dev->std & V4L2_STD_525_60) { | |
309 | params.line = 858; | |
310 | params.frame = 525; | |
311 | } else { | |
312 | params.line = 864; | |
313 | params.frame = 625; | |
314 | } | |
315 | } else { | |
316 | params.hdelay = 0; | |
317 | params.vdelay = 0; | |
318 | params.line = params.width + bcap_dev->cfg->blank_pixels; | |
319 | params.frame = params.height; | |
320 | } | |
63b1a90d SJ |
321 | ret = ppi->ops->set_params(ppi, ¶ms); |
322 | if (ret < 0) { | |
323 | v4l2_err(&bcap_dev->v4l2_dev, | |
324 | "Error in setting ppi params\n"); | |
6692871a | 325 | goto err; |
63b1a90d SJ |
326 | } |
327 | ||
328 | /* attach ppi DMA irq handler */ | |
329 | ret = ppi->ops->attach_irq(ppi, bcap_isr); | |
330 | if (ret < 0) { | |
331 | v4l2_err(&bcap_dev->v4l2_dev, | |
332 | "Error in attaching interrupt handler\n"); | |
6692871a | 333 | goto err; |
63b1a90d SJ |
334 | } |
335 | ||
16735d02 | 336 | reinit_completion(&bcap_dev->comp); |
63b1a90d | 337 | bcap_dev->stop = false; |
6692871a | 338 | |
d61233bf LP |
339 | /* get the next frame from the dma queue */ |
340 | bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next, | |
341 | struct bcap_buffer, list); | |
342 | /* remove buffer from the dma queue */ | |
343 | list_del_init(&bcap_dev->cur_frm->list); | |
344 | addr = vb2_dma_contig_plane_dma_addr(&bcap_dev->cur_frm->vb, 0); | |
345 | /* update DMA address */ | |
346 | ppi->ops->update_addr(ppi, (unsigned long)addr); | |
347 | /* enable ppi */ | |
348 | ppi->ops->start(ppi); | |
349 | ||
63b1a90d | 350 | return 0; |
6692871a LP |
351 | |
352 | err: | |
353 | list_for_each_entry_safe(buf, tmp, &bcap_dev->dma_queue, list) { | |
354 | list_del(&buf->list); | |
355 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_QUEUED); | |
356 | } | |
357 | ||
358 | return ret; | |
63b1a90d SJ |
359 | } |
360 | ||
e37559b2 | 361 | static void bcap_stop_streaming(struct vb2_queue *vq) |
63b1a90d SJ |
362 | { |
363 | struct bcap_device *bcap_dev = vb2_get_drv_priv(vq); | |
364 | struct ppi_if *ppi = bcap_dev->ppi; | |
365 | int ret; | |
366 | ||
63b1a90d SJ |
367 | bcap_dev->stop = true; |
368 | wait_for_completion(&bcap_dev->comp); | |
369 | ppi->ops->stop(ppi); | |
370 | ppi->ops->detach_irq(ppi); | |
371 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_stream, 0); | |
372 | if (ret && (ret != -ENOIOCTLCMD)) | |
373 | v4l2_err(&bcap_dev->v4l2_dev, | |
374 | "stream off failed in subdev\n"); | |
375 | ||
376 | /* release all active buffers */ | |
2bf34b2f LP |
377 | if (bcap_dev->cur_frm) |
378 | vb2_buffer_done(&bcap_dev->cur_frm->vb, VB2_BUF_STATE_ERROR); | |
379 | ||
63b1a90d | 380 | while (!list_empty(&bcap_dev->dma_queue)) { |
d78a4882 | 381 | bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next, |
63b1a90d | 382 | struct bcap_buffer, list); |
7ba3c21c | 383 | list_del_init(&bcap_dev->cur_frm->list); |
d78a4882 | 384 | vb2_buffer_done(&bcap_dev->cur_frm->vb, VB2_BUF_STATE_ERROR); |
63b1a90d | 385 | } |
63b1a90d SJ |
386 | } |
387 | ||
388 | static struct vb2_ops bcap_video_qops = { | |
389 | .queue_setup = bcap_queue_setup, | |
63b1a90d SJ |
390 | .buf_prepare = bcap_buffer_prepare, |
391 | .buf_cleanup = bcap_buffer_cleanup, | |
392 | .buf_queue = bcap_buffer_queue, | |
4d655ca4 PL |
393 | .wait_prepare = vb2_ops_wait_prepare, |
394 | .wait_finish = vb2_ops_wait_finish, | |
63b1a90d SJ |
395 | .start_streaming = bcap_start_streaming, |
396 | .stop_streaming = bcap_stop_streaming, | |
397 | }; | |
398 | ||
63b1a90d SJ |
399 | static irqreturn_t bcap_isr(int irq, void *dev_id) |
400 | { | |
401 | struct ppi_if *ppi = dev_id; | |
402 | struct bcap_device *bcap_dev = ppi->priv; | |
63b1a90d SJ |
403 | struct vb2_buffer *vb = &bcap_dev->cur_frm->vb; |
404 | dma_addr_t addr; | |
405 | ||
406 | spin_lock(&bcap_dev->lock); | |
407 | ||
d78a4882 | 408 | if (!list_empty(&bcap_dev->dma_queue)) { |
8e6057b5 | 409 | v4l2_get_timestamp(&vb->v4l2_buf.timestamp); |
d78a4882 SJ |
410 | if (ppi->err) { |
411 | vb2_buffer_done(vb, VB2_BUF_STATE_ERROR); | |
412 | ppi->err = false; | |
413 | } else { | |
414 | vb2_buffer_done(vb, VB2_BUF_STATE_DONE); | |
415 | } | |
416 | bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next, | |
417 | struct bcap_buffer, list); | |
7ba3c21c | 418 | list_del_init(&bcap_dev->cur_frm->list); |
d78a4882 SJ |
419 | } else { |
420 | /* clear error flag, we will get a new frame */ | |
421 | if (ppi->err) | |
422 | ppi->err = false; | |
63b1a90d SJ |
423 | } |
424 | ||
425 | ppi->ops->stop(ppi); | |
426 | ||
427 | if (bcap_dev->stop) { | |
428 | complete(&bcap_dev->comp); | |
429 | } else { | |
d78a4882 SJ |
430 | addr = vb2_dma_contig_plane_dma_addr(&bcap_dev->cur_frm->vb, 0); |
431 | ppi->ops->update_addr(ppi, (unsigned long)addr); | |
63b1a90d SJ |
432 | ppi->ops->start(ppi); |
433 | } | |
434 | ||
435 | spin_unlock(&bcap_dev->lock); | |
436 | ||
437 | return IRQ_HANDLED; | |
438 | } | |
439 | ||
63b1a90d SJ |
440 | static int bcap_querystd(struct file *file, void *priv, v4l2_std_id *std) |
441 | { | |
442 | struct bcap_device *bcap_dev = video_drvdata(file); | |
fe00b716 LP |
443 | struct v4l2_input input; |
444 | ||
445 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; | |
446 | if (!(input.capabilities & V4L2_IN_CAP_STD)) | |
447 | return -ENODATA; | |
63b1a90d SJ |
448 | |
449 | return v4l2_subdev_call(bcap_dev->sd, video, querystd, std); | |
450 | } | |
451 | ||
452 | static int bcap_g_std(struct file *file, void *priv, v4l2_std_id *std) | |
453 | { | |
454 | struct bcap_device *bcap_dev = video_drvdata(file); | |
fe00b716 LP |
455 | struct v4l2_input input; |
456 | ||
457 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; | |
458 | if (!(input.capabilities & V4L2_IN_CAP_STD)) | |
459 | return -ENODATA; | |
63b1a90d SJ |
460 | |
461 | *std = bcap_dev->std; | |
462 | return 0; | |
463 | } | |
464 | ||
314527ac | 465 | static int bcap_s_std(struct file *file, void *priv, v4l2_std_id std) |
63b1a90d SJ |
466 | { |
467 | struct bcap_device *bcap_dev = video_drvdata(file); | |
fe00b716 | 468 | struct v4l2_input input; |
63b1a90d SJ |
469 | int ret; |
470 | ||
fe00b716 LP |
471 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; |
472 | if (!(input.capabilities & V4L2_IN_CAP_STD)) | |
473 | return -ENODATA; | |
474 | ||
63b1a90d SJ |
475 | if (vb2_is_busy(&bcap_dev->buffer_queue)) |
476 | return -EBUSY; | |
477 | ||
8774bed9 | 478 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_std, std); |
63b1a90d SJ |
479 | if (ret < 0) |
480 | return ret; | |
481 | ||
314527ac | 482 | bcap_dev->std = std; |
63b1a90d SJ |
483 | return 0; |
484 | } | |
485 | ||
ead156c4 SJ |
486 | static int bcap_enum_dv_timings(struct file *file, void *priv, |
487 | struct v4l2_enum_dv_timings *timings) | |
488 | { | |
489 | struct bcap_device *bcap_dev = video_drvdata(file); | |
116a6488 LP |
490 | struct v4l2_input input; |
491 | ||
492 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; | |
493 | if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS)) | |
494 | return -ENODATA; | |
ead156c4 | 495 | |
f1f8e434 LP |
496 | timings->pad = 0; |
497 | ||
498 | return v4l2_subdev_call(bcap_dev->sd, pad, | |
ead156c4 SJ |
499 | enum_dv_timings, timings); |
500 | } | |
501 | ||
502 | static int bcap_query_dv_timings(struct file *file, void *priv, | |
45b82596 SJ |
503 | struct v4l2_dv_timings *timings) |
504 | { | |
505 | struct bcap_device *bcap_dev = video_drvdata(file); | |
116a6488 LP |
506 | struct v4l2_input input; |
507 | ||
508 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; | |
509 | if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS)) | |
510 | return -ENODATA; | |
45b82596 | 511 | |
ead156c4 SJ |
512 | return v4l2_subdev_call(bcap_dev->sd, video, |
513 | query_dv_timings, timings); | |
514 | } | |
45b82596 | 515 | |
ead156c4 SJ |
516 | static int bcap_g_dv_timings(struct file *file, void *priv, |
517 | struct v4l2_dv_timings *timings) | |
518 | { | |
519 | struct bcap_device *bcap_dev = video_drvdata(file); | |
116a6488 LP |
520 | struct v4l2_input input; |
521 | ||
522 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; | |
523 | if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS)) | |
524 | return -ENODATA; | |
ead156c4 SJ |
525 | |
526 | *timings = bcap_dev->dv_timings; | |
45b82596 SJ |
527 | return 0; |
528 | } | |
529 | ||
530 | static int bcap_s_dv_timings(struct file *file, void *priv, | |
531 | struct v4l2_dv_timings *timings) | |
532 | { | |
533 | struct bcap_device *bcap_dev = video_drvdata(file); | |
116a6488 | 534 | struct v4l2_input input; |
45b82596 | 535 | int ret; |
116a6488 LP |
536 | |
537 | input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; | |
538 | if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS)) | |
539 | return -ENODATA; | |
540 | ||
45b82596 SJ |
541 | if (vb2_is_busy(&bcap_dev->buffer_queue)) |
542 | return -EBUSY; | |
543 | ||
544 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_dv_timings, timings); | |
545 | if (ret < 0) | |
546 | return ret; | |
547 | ||
548 | bcap_dev->dv_timings = *timings; | |
549 | return 0; | |
550 | } | |
551 | ||
63b1a90d SJ |
552 | static int bcap_enum_input(struct file *file, void *priv, |
553 | struct v4l2_input *input) | |
554 | { | |
555 | struct bcap_device *bcap_dev = video_drvdata(file); | |
556 | struct bfin_capture_config *config = bcap_dev->cfg; | |
557 | int ret; | |
558 | u32 status; | |
559 | ||
560 | if (input->index >= config->num_inputs) | |
561 | return -EINVAL; | |
562 | ||
563 | *input = config->inputs[input->index]; | |
564 | /* get input status */ | |
565 | ret = v4l2_subdev_call(bcap_dev->sd, video, g_input_status, &status); | |
566 | if (!ret) | |
567 | input->status = status; | |
568 | return 0; | |
569 | } | |
570 | ||
571 | static int bcap_g_input(struct file *file, void *priv, unsigned int *index) | |
572 | { | |
573 | struct bcap_device *bcap_dev = video_drvdata(file); | |
574 | ||
575 | *index = bcap_dev->cur_input; | |
576 | return 0; | |
577 | } | |
578 | ||
579 | static int bcap_s_input(struct file *file, void *priv, unsigned int index) | |
580 | { | |
581 | struct bcap_device *bcap_dev = video_drvdata(file); | |
582 | struct bfin_capture_config *config = bcap_dev->cfg; | |
583 | struct bcap_route *route; | |
584 | int ret; | |
585 | ||
586 | if (vb2_is_busy(&bcap_dev->buffer_queue)) | |
587 | return -EBUSY; | |
588 | ||
589 | if (index >= config->num_inputs) | |
590 | return -EINVAL; | |
591 | ||
592 | route = &config->routes[index]; | |
593 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_routing, | |
594 | route->input, route->output, 0); | |
595 | if ((ret < 0) && (ret != -ENOIOCTLCMD)) { | |
596 | v4l2_err(&bcap_dev->v4l2_dev, "Failed to set input\n"); | |
597 | return ret; | |
598 | } | |
599 | bcap_dev->cur_input = index; | |
45b82596 SJ |
600 | /* if this route has specific config, update ppi control */ |
601 | if (route->ppi_control) | |
602 | config->ppi_control = route->ppi_control; | |
63b1a90d SJ |
603 | return 0; |
604 | } | |
605 | ||
606 | static int bcap_try_format(struct bcap_device *bcap, | |
607 | struct v4l2_pix_format *pixfmt, | |
45b82596 | 608 | struct bcap_format *bcap_fmt) |
63b1a90d SJ |
609 | { |
610 | struct bcap_format *sf = bcap->sensor_formats; | |
611 | struct bcap_format *fmt = NULL; | |
612 | struct v4l2_mbus_framefmt mbus_fmt; | |
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 | ||
63b1a90d SJ |
623 | v4l2_fill_mbus_format(&mbus_fmt, pixfmt, fmt->mbus_code); |
624 | ret = v4l2_subdev_call(bcap->sd, video, | |
625 | try_mbus_fmt, &mbus_fmt); | |
626 | if (ret < 0) | |
627 | return ret; | |
628 | v4l2_fill_pix_format(pixfmt, &mbus_fmt); | |
45b82596 SJ |
629 | if (bcap_fmt) { |
630 | for (i = 0; i < bcap->num_sensor_formats; i++) { | |
631 | fmt = &sf[i]; | |
632 | if (mbus_fmt.code == fmt->mbus_code) | |
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); | |
681 | struct v4l2_mbus_framefmt mbus_fmt; | |
45b82596 | 682 | struct bcap_format bcap_fmt; |
63b1a90d | 683 | struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; |
45b82596 | 684 | int ret; |
63b1a90d SJ |
685 | |
686 | if (vb2_is_busy(&bcap_dev->buffer_queue)) | |
687 | return -EBUSY; | |
688 | ||
689 | /* see if format works */ | |
45b82596 | 690 | ret = bcap_try_format(bcap_dev, pixfmt, &bcap_fmt); |
63b1a90d SJ |
691 | if (ret < 0) |
692 | return ret; | |
693 | ||
45b82596 | 694 | v4l2_fill_mbus_format(&mbus_fmt, pixfmt, bcap_fmt.mbus_code); |
63b1a90d SJ |
695 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_mbus_fmt, &mbus_fmt); |
696 | if (ret < 0) | |
697 | return ret; | |
698 | bcap_dev->fmt = *pixfmt; | |
45b82596 SJ |
699 | bcap_dev->bpp = bcap_fmt.bpp; |
700 | bcap_dev->dlen = bcap_fmt.dlen; | |
63b1a90d SJ |
701 | return 0; |
702 | } | |
703 | ||
704 | static int bcap_querycap(struct file *file, void *priv, | |
705 | struct v4l2_capability *cap) | |
706 | { | |
707 | struct bcap_device *bcap_dev = video_drvdata(file); | |
708 | ||
a020c747 HV |
709 | cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; |
710 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; | |
63b1a90d SJ |
711 | strlcpy(cap->driver, CAPTURE_DRV_NAME, sizeof(cap->driver)); |
712 | strlcpy(cap->bus_info, "Blackfin Platform", sizeof(cap->bus_info)); | |
713 | strlcpy(cap->card, bcap_dev->cfg->card_name, sizeof(cap->card)); | |
714 | return 0; | |
715 | } | |
716 | ||
717 | static int bcap_g_parm(struct file *file, void *fh, | |
718 | struct v4l2_streamparm *a) | |
719 | { | |
720 | struct bcap_device *bcap_dev = video_drvdata(file); | |
721 | ||
722 | if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
723 | return -EINVAL; | |
724 | return v4l2_subdev_call(bcap_dev->sd, video, g_parm, a); | |
725 | } | |
726 | ||
727 | static int bcap_s_parm(struct file *file, void *fh, | |
728 | struct v4l2_streamparm *a) | |
729 | { | |
730 | struct bcap_device *bcap_dev = video_drvdata(file); | |
731 | ||
732 | if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
733 | return -EINVAL; | |
734 | return v4l2_subdev_call(bcap_dev->sd, video, s_parm, a); | |
735 | } | |
736 | ||
63b1a90d SJ |
737 | static int bcap_log_status(struct file *file, void *priv) |
738 | { | |
739 | struct bcap_device *bcap_dev = video_drvdata(file); | |
740 | /* status for sub devices */ | |
741 | v4l2_device_call_all(&bcap_dev->v4l2_dev, 0, core, log_status); | |
742 | return 0; | |
743 | } | |
744 | ||
745 | static const struct v4l2_ioctl_ops bcap_ioctl_ops = { | |
746 | .vidioc_querycap = bcap_querycap, | |
747 | .vidioc_g_fmt_vid_cap = bcap_g_fmt_vid_cap, | |
748 | .vidioc_enum_fmt_vid_cap = bcap_enum_fmt_vid_cap, | |
749 | .vidioc_s_fmt_vid_cap = bcap_s_fmt_vid_cap, | |
750 | .vidioc_try_fmt_vid_cap = bcap_try_fmt_vid_cap, | |
751 | .vidioc_enum_input = bcap_enum_input, | |
752 | .vidioc_g_input = bcap_g_input, | |
753 | .vidioc_s_input = bcap_s_input, | |
754 | .vidioc_querystd = bcap_querystd, | |
755 | .vidioc_s_std = bcap_s_std, | |
756 | .vidioc_g_std = bcap_g_std, | |
45b82596 SJ |
757 | .vidioc_s_dv_timings = bcap_s_dv_timings, |
758 | .vidioc_g_dv_timings = bcap_g_dv_timings, | |
ead156c4 SJ |
759 | .vidioc_query_dv_timings = bcap_query_dv_timings, |
760 | .vidioc_enum_dv_timings = bcap_enum_dv_timings, | |
d61233bf | 761 | .vidioc_reqbufs = vb2_ioctl_reqbufs, |
8df229bd | 762 | .vidioc_create_bufs = vb2_ioctl_create_bufs, |
d61233bf LP |
763 | .vidioc_querybuf = vb2_ioctl_querybuf, |
764 | .vidioc_qbuf = vb2_ioctl_qbuf, | |
765 | .vidioc_dqbuf = vb2_ioctl_dqbuf, | |
766 | .vidioc_streamon = vb2_ioctl_streamon, | |
767 | .vidioc_streamoff = vb2_ioctl_streamoff, | |
63b1a90d SJ |
768 | .vidioc_g_parm = bcap_g_parm, |
769 | .vidioc_s_parm = bcap_s_parm, | |
63b1a90d SJ |
770 | .vidioc_log_status = bcap_log_status, |
771 | }; | |
772 | ||
773 | static struct v4l2_file_operations bcap_fops = { | |
774 | .owner = THIS_MODULE, | |
f0e91c65 LP |
775 | .open = v4l2_fh_open, |
776 | .release = vb2_fop_release, | |
63b1a90d | 777 | .unlocked_ioctl = video_ioctl2, |
8fd05b7e | 778 | .mmap = vb2_fop_mmap, |
63b1a90d SJ |
779 | #ifndef CONFIG_MMU |
780 | .get_unmapped_area = bcap_get_unmapped_area, | |
781 | #endif | |
8fd05b7e | 782 | .poll = vb2_fop_poll |
63b1a90d SJ |
783 | }; |
784 | ||
4c62e976 | 785 | static int bcap_probe(struct platform_device *pdev) |
63b1a90d SJ |
786 | { |
787 | struct bcap_device *bcap_dev; | |
788 | struct video_device *vfd; | |
789 | struct i2c_adapter *i2c_adap; | |
790 | struct bfin_capture_config *config; | |
791 | struct vb2_queue *q; | |
45b82596 | 792 | struct bcap_route *route; |
63b1a90d SJ |
793 | int ret; |
794 | ||
795 | config = pdev->dev.platform_data; | |
d9fdbeff | 796 | if (!config || !config->num_inputs) { |
63b1a90d SJ |
797 | v4l2_err(pdev->dev.driver, "Unable to get board config\n"); |
798 | return -ENODEV; | |
799 | } | |
800 | ||
801 | bcap_dev = kzalloc(sizeof(*bcap_dev), GFP_KERNEL); | |
802 | if (!bcap_dev) { | |
803 | v4l2_err(pdev->dev.driver, "Unable to alloc bcap_dev\n"); | |
804 | return -ENOMEM; | |
805 | } | |
806 | ||
807 | bcap_dev->cfg = config; | |
808 | ||
f7d0e6d6 | 809 | bcap_dev->ppi = ppi_create_instance(pdev, config->ppi_info); |
63b1a90d SJ |
810 | if (!bcap_dev->ppi) { |
811 | v4l2_err(pdev->dev.driver, "Unable to create ppi\n"); | |
812 | ret = -ENODEV; | |
813 | goto err_free_dev; | |
814 | } | |
815 | bcap_dev->ppi->priv = bcap_dev; | |
816 | ||
817 | bcap_dev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev); | |
818 | if (IS_ERR(bcap_dev->alloc_ctx)) { | |
819 | ret = PTR_ERR(bcap_dev->alloc_ctx); | |
820 | goto err_free_ppi; | |
821 | } | |
822 | ||
823 | vfd = video_device_alloc(); | |
824 | if (!vfd) { | |
825 | ret = -ENOMEM; | |
826 | v4l2_err(pdev->dev.driver, "Unable to alloc video device\n"); | |
827 | goto err_cleanup_ctx; | |
828 | } | |
829 | ||
830 | /* initialize field of video device */ | |
831 | vfd->release = video_device_release; | |
832 | vfd->fops = &bcap_fops; | |
833 | vfd->ioctl_ops = &bcap_ioctl_ops; | |
834 | vfd->tvnorms = 0; | |
835 | vfd->v4l2_dev = &bcap_dev->v4l2_dev; | |
63b1a90d SJ |
836 | strncpy(vfd->name, CAPTURE_DRV_NAME, sizeof(vfd->name)); |
837 | bcap_dev->video_dev = vfd; | |
838 | ||
839 | ret = v4l2_device_register(&pdev->dev, &bcap_dev->v4l2_dev); | |
840 | if (ret) { | |
841 | v4l2_err(pdev->dev.driver, | |
842 | "Unable to register v4l2 device\n"); | |
843 | goto err_release_vdev; | |
844 | } | |
845 | v4l2_info(&bcap_dev->v4l2_dev, "v4l2 device registered\n"); | |
846 | ||
847 | bcap_dev->v4l2_dev.ctrl_handler = &bcap_dev->ctrl_handler; | |
848 | ret = v4l2_ctrl_handler_init(&bcap_dev->ctrl_handler, 0); | |
849 | if (ret) { | |
850 | v4l2_err(&bcap_dev->v4l2_dev, | |
851 | "Unable to init control handler\n"); | |
852 | goto err_unreg_v4l2; | |
853 | } | |
854 | ||
855 | spin_lock_init(&bcap_dev->lock); | |
856 | /* initialize queue */ | |
857 | q = &bcap_dev->buffer_queue; | |
858 | q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
859 | q->io_modes = VB2_MMAP; | |
860 | q->drv_priv = bcap_dev; | |
861 | q->buf_struct_size = sizeof(struct bcap_buffer); | |
862 | q->ops = &bcap_video_qops; | |
863 | q->mem_ops = &vb2_dma_contig_memops; | |
ade48681 | 864 | q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
4d655ca4 | 865 | q->lock = &bcap_dev->mutex; |
5f65ca81 | 866 | q->min_buffers_needed = 1; |
63b1a90d | 867 | |
20420f92 HV |
868 | ret = vb2_queue_init(q); |
869 | if (ret) | |
870 | goto err_free_handler; | |
63b1a90d SJ |
871 | |
872 | mutex_init(&bcap_dev->mutex); | |
873 | init_completion(&bcap_dev->comp); | |
874 | ||
875 | /* init video dma queues */ | |
876 | INIT_LIST_HEAD(&bcap_dev->dma_queue); | |
877 | ||
878 | vfd->lock = &bcap_dev->mutex; | |
8fd05b7e | 879 | vfd->queue = q; |
63b1a90d SJ |
880 | |
881 | /* register video device */ | |
882 | ret = video_register_device(bcap_dev->video_dev, VFL_TYPE_GRABBER, -1); | |
883 | if (ret) { | |
884 | v4l2_err(&bcap_dev->v4l2_dev, | |
885 | "Unable to register video device\n"); | |
886 | goto err_free_handler; | |
887 | } | |
888 | video_set_drvdata(bcap_dev->video_dev, bcap_dev); | |
889 | v4l2_info(&bcap_dev->v4l2_dev, "video device registered as: %s\n", | |
890 | video_device_node_name(vfd)); | |
891 | ||
892 | /* load up the subdevice */ | |
893 | i2c_adap = i2c_get_adapter(config->i2c_adapter_id); | |
894 | if (!i2c_adap) { | |
895 | v4l2_err(&bcap_dev->v4l2_dev, | |
896 | "Unable to find i2c adapter\n"); | |
150a1363 | 897 | ret = -ENODEV; |
63b1a90d SJ |
898 | goto err_unreg_vdev; |
899 | ||
900 | } | |
901 | bcap_dev->sd = v4l2_i2c_new_subdev_board(&bcap_dev->v4l2_dev, | |
902 | i2c_adap, | |
903 | &config->board_info, | |
904 | NULL); | |
905 | if (bcap_dev->sd) { | |
906 | int i; | |
45b82596 | 907 | |
63b1a90d SJ |
908 | /* update tvnorms from the sub devices */ |
909 | for (i = 0; i < config->num_inputs; i++) | |
910 | vfd->tvnorms |= config->inputs[i].std; | |
911 | } else { | |
912 | v4l2_err(&bcap_dev->v4l2_dev, | |
913 | "Unable to register sub device\n"); | |
d9fdbeff | 914 | ret = -ENODEV; |
63b1a90d SJ |
915 | goto err_unreg_vdev; |
916 | } | |
917 | ||
918 | v4l2_info(&bcap_dev->v4l2_dev, "v4l2 sub device registered\n"); | |
919 | ||
45b82596 SJ |
920 | /* |
921 | * explicitly set input, otherwise some boards | |
922 | * may not work at the state as we expected | |
923 | */ | |
924 | route = &config->routes[0]; | |
925 | ret = v4l2_subdev_call(bcap_dev->sd, video, s_routing, | |
926 | route->input, route->output, 0); | |
927 | if ((ret < 0) && (ret != -ENOIOCTLCMD)) { | |
928 | v4l2_err(&bcap_dev->v4l2_dev, "Failed to set input\n"); | |
929 | goto err_unreg_vdev; | |
930 | } | |
931 | bcap_dev->cur_input = 0; | |
932 | /* if this route has specific config, update ppi control */ | |
933 | if (route->ppi_control) | |
934 | config->ppi_control = route->ppi_control; | |
935 | ||
63b1a90d | 936 | /* now we can probe the default state */ |
45b82596 | 937 | if (config->inputs[0].capabilities & V4L2_IN_CAP_STD) { |
63b1a90d | 938 | v4l2_std_id std; |
8774bed9 | 939 | ret = v4l2_subdev_call(bcap_dev->sd, video, g_std, &std); |
63b1a90d SJ |
940 | if (ret) { |
941 | v4l2_err(&bcap_dev->v4l2_dev, | |
942 | "Unable to get std\n"); | |
943 | goto err_unreg_vdev; | |
944 | } | |
945 | bcap_dev->std = std; | |
946 | } | |
a8451ed2 | 947 | if (config->inputs[0].capabilities & V4L2_IN_CAP_DV_TIMINGS) { |
45b82596 SJ |
948 | struct v4l2_dv_timings dv_timings; |
949 | ret = v4l2_subdev_call(bcap_dev->sd, video, | |
950 | g_dv_timings, &dv_timings); | |
951 | if (ret) { | |
952 | v4l2_err(&bcap_dev->v4l2_dev, | |
953 | "Unable to get dv timings\n"); | |
954 | goto err_unreg_vdev; | |
955 | } | |
956 | bcap_dev->dv_timings = dv_timings; | |
957 | } | |
63b1a90d SJ |
958 | ret = bcap_init_sensor_formats(bcap_dev); |
959 | if (ret) { | |
960 | v4l2_err(&bcap_dev->v4l2_dev, | |
961 | "Unable to create sensor formats table\n"); | |
962 | goto err_unreg_vdev; | |
963 | } | |
964 | return 0; | |
965 | err_unreg_vdev: | |
966 | video_unregister_device(bcap_dev->video_dev); | |
967 | bcap_dev->video_dev = NULL; | |
968 | err_free_handler: | |
969 | v4l2_ctrl_handler_free(&bcap_dev->ctrl_handler); | |
970 | err_unreg_v4l2: | |
971 | v4l2_device_unregister(&bcap_dev->v4l2_dev); | |
972 | err_release_vdev: | |
973 | if (bcap_dev->video_dev) | |
974 | video_device_release(bcap_dev->video_dev); | |
975 | err_cleanup_ctx: | |
976 | vb2_dma_contig_cleanup_ctx(bcap_dev->alloc_ctx); | |
977 | err_free_ppi: | |
978 | ppi_delete_instance(bcap_dev->ppi); | |
979 | err_free_dev: | |
980 | kfree(bcap_dev); | |
981 | return ret; | |
982 | } | |
983 | ||
4c62e976 | 984 | static int bcap_remove(struct platform_device *pdev) |
63b1a90d SJ |
985 | { |
986 | struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); | |
987 | struct bcap_device *bcap_dev = container_of(v4l2_dev, | |
988 | struct bcap_device, v4l2_dev); | |
989 | ||
990 | bcap_free_sensor_formats(bcap_dev); | |
991 | video_unregister_device(bcap_dev->video_dev); | |
992 | v4l2_ctrl_handler_free(&bcap_dev->ctrl_handler); | |
993 | v4l2_device_unregister(v4l2_dev); | |
994 | vb2_dma_contig_cleanup_ctx(bcap_dev->alloc_ctx); | |
995 | ppi_delete_instance(bcap_dev->ppi); | |
996 | kfree(bcap_dev); | |
997 | return 0; | |
998 | } | |
999 | ||
1000 | static struct platform_driver bcap_driver = { | |
1001 | .driver = { | |
1002 | .name = CAPTURE_DRV_NAME, | |
63b1a90d SJ |
1003 | }, |
1004 | .probe = bcap_probe, | |
4c62e976 | 1005 | .remove = bcap_remove, |
63b1a90d | 1006 | }; |
7f2b3a7d | 1007 | module_platform_driver(bcap_driver); |
63b1a90d SJ |
1008 | |
1009 | MODULE_DESCRIPTION("Analog Devices blackfin video capture driver"); | |
1010 | MODULE_AUTHOR("Scott Jiang <Scott.Jiang.Linux@gmail.com>"); | |
1011 | MODULE_LICENSE("GPL v2"); |