Commit | Line | Data |
---|---|---|
5f3cc447 | 1 | /* |
3a3f9449 | 2 | * Samsung S5P/EXYNOS4 SoC series camera interface (camera capture) driver |
5f3cc447 | 3 | * |
3a3f9449 | 4 | * Copyright (C) 2010 - 2011 Samsung Electronics Co., Ltd. |
5f3cc447 SN |
5 | * Author: Sylwester Nawrocki, <s.nawrocki@samsung.com> |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | ||
12 | #include <linux/module.h> | |
13 | #include <linux/kernel.h> | |
5f3cc447 SN |
14 | #include <linux/types.h> |
15 | #include <linux/errno.h> | |
16 | #include <linux/bug.h> | |
17 | #include <linux/interrupt.h> | |
18 | #include <linux/device.h> | |
e9e21083 | 19 | #include <linux/pm_runtime.h> |
5f3cc447 SN |
20 | #include <linux/list.h> |
21 | #include <linux/slab.h> | |
5f3cc447 SN |
22 | |
23 | #include <linux/videodev2.h> | |
24 | #include <media/v4l2-device.h> | |
25 | #include <media/v4l2-ioctl.h> | |
26 | #include <media/v4l2-mem2mem.h> | |
2dab38e2 SN |
27 | #include <media/videobuf2-core.h> |
28 | #include <media/videobuf2-dma-contig.h> | |
5f3cc447 | 29 | |
131b6c61 | 30 | #include "fimc-mdevice.h" |
5f3cc447 SN |
31 | #include "fimc-core.h" |
32 | ||
9e803a04 SN |
33 | static int fimc_init_capture(struct fimc_dev *fimc) |
34 | { | |
35 | struct fimc_ctx *ctx = fimc->vid_cap.ctx; | |
36 | struct fimc_sensor_info *sensor; | |
37 | unsigned long flags; | |
38 | int ret = 0; | |
39 | ||
40 | if (fimc->pipeline.sensor == NULL || ctx == NULL) | |
41 | return -ENXIO; | |
42 | if (ctx->s_frame.fmt == NULL) | |
43 | return -EINVAL; | |
44 | ||
45 | sensor = v4l2_get_subdev_hostdata(fimc->pipeline.sensor); | |
46 | ||
47 | spin_lock_irqsave(&fimc->slock, flags); | |
48 | fimc_prepare_dma_offset(ctx, &ctx->d_frame); | |
49 | fimc_set_yuv_order(ctx); | |
50 | ||
51 | fimc_hw_set_camera_polarity(fimc, sensor->pdata); | |
52 | fimc_hw_set_camera_type(fimc, sensor->pdata); | |
53 | fimc_hw_set_camera_source(fimc, sensor->pdata); | |
54 | fimc_hw_set_camera_offset(fimc, &ctx->s_frame); | |
55 | ||
56 | ret = fimc_set_scaler_info(ctx); | |
57 | if (!ret) { | |
58 | fimc_hw_set_input_path(ctx); | |
59 | fimc_hw_set_prescaler(ctx); | |
60 | fimc_hw_set_mainscaler(ctx); | |
61 | fimc_hw_set_target_format(ctx); | |
62 | fimc_hw_set_rotation(ctx); | |
ee7160e5 | 63 | fimc_hw_set_effect(ctx, false); |
9e803a04 SN |
64 | fimc_hw_set_output_path(ctx); |
65 | fimc_hw_set_out_dma(ctx); | |
237e0265 | 66 | clear_bit(ST_CAPT_APPLY_CFG, &fimc->state); |
9e803a04 SN |
67 | } |
68 | spin_unlock_irqrestore(&fimc->slock, flags); | |
69 | return ret; | |
70 | } | |
71 | ||
3e4748d8 | 72 | static int fimc_capture_state_cleanup(struct fimc_dev *fimc, bool suspend) |
5f3cc447 | 73 | { |
bd323e28 | 74 | struct fimc_vid_cap *cap = &fimc->vid_cap; |
2dab38e2 | 75 | struct fimc_vid_buffer *buf; |
bd323e28 | 76 | unsigned long flags; |
3e4748d8 | 77 | bool streaming; |
5f3cc447 SN |
78 | |
79 | spin_lock_irqsave(&fimc->slock, flags); | |
3e4748d8 | 80 | streaming = fimc->state & (1 << ST_CAPT_ISP_STREAM); |
5f3cc447 | 81 | |
3e4748d8 SN |
82 | fimc->state &= ~(1 << ST_CAPT_RUN | 1 << ST_CAPT_SHUT | |
83 | 1 << ST_CAPT_STREAM | 1 << ST_CAPT_ISP_STREAM); | |
84 | if (!suspend) | |
85 | fimc->state &= ~(1 << ST_CAPT_PEND | 1 << ST_CAPT_SUSPENDED); | |
2dab38e2 | 86 | |
3e4748d8 SN |
87 | /* Release unused buffers */ |
88 | while (!suspend && !list_empty(&cap->pending_buf_q)) { | |
0295202c | 89 | buf = fimc_pending_queue_pop(cap); |
2dab38e2 SN |
90 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); |
91 | } | |
3e4748d8 | 92 | /* If suspending put unused buffers onto pending queue */ |
2dab38e2 | 93 | while (!list_empty(&cap->active_buf_q)) { |
0295202c | 94 | buf = fimc_active_queue_pop(cap); |
3e4748d8 SN |
95 | if (suspend) |
96 | fimc_pending_queue_add(cap, buf); | |
97 | else | |
98 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); | |
2dab38e2 | 99 | } |
3e4748d8 | 100 | set_bit(ST_CAPT_SUSPENDED, &fimc->state); |
5f3cc447 | 101 | spin_unlock_irqrestore(&fimc->slock, flags); |
4db5e27e | 102 | |
3e4748d8 | 103 | if (streaming) |
4db5e27e SN |
104 | return fimc_pipeline_s_stream(fimc, 0); |
105 | else | |
106 | return 0; | |
bd323e28 MS |
107 | } |
108 | ||
3e4748d8 | 109 | static int fimc_stop_capture(struct fimc_dev *fimc, bool suspend) |
bd323e28 | 110 | { |
bd323e28 MS |
111 | unsigned long flags; |
112 | ||
113 | if (!fimc_capture_active(fimc)) | |
114 | return 0; | |
115 | ||
116 | spin_lock_irqsave(&fimc->slock, flags); | |
117 | set_bit(ST_CAPT_SHUT, &fimc->state); | |
118 | fimc_deactivate_capture(fimc); | |
119 | spin_unlock_irqrestore(&fimc->slock, flags); | |
120 | ||
121 | wait_event_timeout(fimc->irq_queue, | |
122 | !test_bit(ST_CAPT_SHUT, &fimc->state), | |
3e4748d8 | 123 | (2*HZ/10)); /* 200 ms */ |
5f3cc447 | 124 | |
3e4748d8 | 125 | return fimc_capture_state_cleanup(fimc, suspend); |
5f3cc447 SN |
126 | } |
127 | ||
237e0265 SN |
128 | /** |
129 | * fimc_capture_config_update - apply the camera interface configuration | |
130 | * | |
131 | * To be called from within the interrupt handler with fimc.slock | |
132 | * spinlock held. It updates the camera pixel crop, rotation and | |
133 | * image flip in H/W. | |
134 | */ | |
135 | int fimc_capture_config_update(struct fimc_ctx *ctx) | |
136 | { | |
137 | struct fimc_dev *fimc = ctx->fimc_dev; | |
138 | int ret; | |
139 | ||
140 | if (test_bit(ST_CAPT_APPLY_CFG, &fimc->state)) | |
141 | return 0; | |
142 | ||
143 | spin_lock(&ctx->slock); | |
144 | fimc_hw_set_camera_offset(fimc, &ctx->s_frame); | |
145 | ret = fimc_set_scaler_info(ctx); | |
146 | if (ret == 0) { | |
147 | fimc_hw_set_prescaler(ctx); | |
148 | fimc_hw_set_mainscaler(ctx); | |
149 | fimc_hw_set_target_format(ctx); | |
150 | fimc_hw_set_rotation(ctx); | |
151 | fimc_prepare_dma_offset(ctx, &ctx->d_frame); | |
152 | fimc_hw_set_out_dma(ctx); | |
153 | set_bit(ST_CAPT_APPLY_CFG, &fimc->state); | |
154 | } | |
155 | spin_unlock(&ctx->slock); | |
156 | return ret; | |
157 | } | |
bd323e28 MS |
158 | |
159 | static int start_streaming(struct vb2_queue *q, unsigned int count) | |
2dab38e2 SN |
160 | { |
161 | struct fimc_ctx *ctx = q->drv_priv; | |
162 | struct fimc_dev *fimc = ctx->fimc_dev; | |
9e803a04 | 163 | struct fimc_vid_cap *vid_cap = &fimc->vid_cap; |
bd323e28 | 164 | int min_bufs; |
2dab38e2 SN |
165 | int ret; |
166 | ||
8ec737ff | 167 | fimc_hw_reset(fimc); |
9e803a04 | 168 | vid_cap->frame_count = 0; |
8ec737ff | 169 | |
9e803a04 | 170 | ret = fimc_init_capture(fimc); |
2dab38e2 | 171 | if (ret) |
bd323e28 | 172 | goto error; |
2dab38e2 | 173 | |
2dab38e2 SN |
174 | set_bit(ST_CAPT_PEND, &fimc->state); |
175 | ||
bd323e28 MS |
176 | min_bufs = fimc->vid_cap.reqbufs_count > 1 ? 2 : 1; |
177 | ||
4db5e27e SN |
178 | if (vid_cap->active_buf_cnt >= min_bufs && |
179 | !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) { | |
bd323e28 MS |
180 | fimc_activate_capture(ctx); |
181 | ||
4db5e27e SN |
182 | if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state)) |
183 | fimc_pipeline_s_stream(fimc, 1); | |
184 | } | |
185 | ||
2dab38e2 | 186 | return 0; |
bd323e28 | 187 | error: |
3e4748d8 | 188 | fimc_capture_state_cleanup(fimc, false); |
bd323e28 | 189 | return ret; |
2dab38e2 SN |
190 | } |
191 | ||
192 | static int stop_streaming(struct vb2_queue *q) | |
193 | { | |
194 | struct fimc_ctx *ctx = q->drv_priv; | |
195 | struct fimc_dev *fimc = ctx->fimc_dev; | |
2dab38e2 | 196 | |
4ecbf5d1 | 197 | if (!fimc_capture_active(fimc)) |
2dab38e2 | 198 | return -EINVAL; |
2dab38e2 | 199 | |
3e4748d8 | 200 | return fimc_stop_capture(fimc, false); |
2dab38e2 SN |
201 | } |
202 | ||
e9e21083 SN |
203 | int fimc_capture_suspend(struct fimc_dev *fimc) |
204 | { | |
3e4748d8 SN |
205 | bool suspend = fimc_capture_busy(fimc); |
206 | ||
207 | int ret = fimc_stop_capture(fimc, suspend); | |
208 | if (ret) | |
209 | return ret; | |
210 | return fimc_pipeline_shutdown(fimc); | |
e9e21083 SN |
211 | } |
212 | ||
3e4748d8 SN |
213 | static void buffer_queue(struct vb2_buffer *vb); |
214 | ||
e9e21083 SN |
215 | int fimc_capture_resume(struct fimc_dev *fimc) |
216 | { | |
3e4748d8 SN |
217 | struct fimc_vid_cap *vid_cap = &fimc->vid_cap; |
218 | struct fimc_vid_buffer *buf; | |
219 | int i; | |
220 | ||
221 | if (!test_and_clear_bit(ST_CAPT_SUSPENDED, &fimc->state)) | |
222 | return 0; | |
223 | ||
224 | INIT_LIST_HEAD(&fimc->vid_cap.active_buf_q); | |
225 | vid_cap->buf_index = 0; | |
226 | fimc_pipeline_initialize(fimc, &fimc->vid_cap.vfd->entity, | |
227 | false); | |
228 | fimc_init_capture(fimc); | |
229 | ||
230 | clear_bit(ST_CAPT_SUSPENDED, &fimc->state); | |
231 | ||
232 | for (i = 0; i < vid_cap->reqbufs_count; i++) { | |
233 | if (list_empty(&vid_cap->pending_buf_q)) | |
234 | break; | |
235 | buf = fimc_pending_queue_pop(vid_cap); | |
236 | buffer_queue(&buf->vb); | |
237 | } | |
e9e21083 | 238 | return 0; |
3e4748d8 | 239 | |
e9e21083 SN |
240 | } |
241 | ||
ef7af59b | 242 | static unsigned int get_plane_size(struct fimc_frame *fr, unsigned int plane) |
2dab38e2 | 243 | { |
ef7af59b | 244 | if (!fr || plane >= fr->fmt->memplanes) |
2dab38e2 | 245 | return 0; |
ef7af59b | 246 | return fr->f_width * fr->f_height * fr->fmt->depth[plane] / 8; |
2dab38e2 SN |
247 | } |
248 | ||
fc714e70 GL |
249 | static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *pfmt, |
250 | unsigned int *num_buffers, unsigned int *num_planes, | |
251 | unsigned int sizes[], void *allocators[]) | |
2dab38e2 SN |
252 | { |
253 | struct fimc_ctx *ctx = vq->drv_priv; | |
ef7af59b SN |
254 | struct fimc_fmt *fmt = ctx->d_frame.fmt; |
255 | int i; | |
2dab38e2 SN |
256 | |
257 | if (!fmt) | |
258 | return -EINVAL; | |
259 | ||
ef7af59b | 260 | *num_planes = fmt->memplanes; |
2dab38e2 | 261 | |
ef7af59b SN |
262 | for (i = 0; i < fmt->memplanes; i++) { |
263 | sizes[i] = get_plane_size(&ctx->d_frame, i); | |
ef7af59b SN |
264 | allocators[i] = ctx->fimc_dev->alloc_ctx; |
265 | } | |
2dab38e2 | 266 | |
ef7af59b | 267 | return 0; |
2dab38e2 SN |
268 | } |
269 | ||
2dab38e2 SN |
270 | static int buffer_prepare(struct vb2_buffer *vb) |
271 | { | |
272 | struct vb2_queue *vq = vb->vb2_queue; | |
273 | struct fimc_ctx *ctx = vq->drv_priv; | |
2dab38e2 SN |
274 | int i; |
275 | ||
4db5e27e | 276 | if (ctx->d_frame.fmt == NULL) |
ef7af59b | 277 | return -EINVAL; |
2dab38e2 | 278 | |
ef7af59b | 279 | for (i = 0; i < ctx->d_frame.fmt->memplanes; i++) { |
4db5e27e | 280 | unsigned long size = ctx->d_frame.payload[i]; |
2dab38e2 SN |
281 | |
282 | if (vb2_plane_size(vb, i) < size) { | |
30c9939d SN |
283 | v4l2_err(ctx->fimc_dev->vid_cap.vfd, |
284 | "User buffer too small (%ld < %ld)\n", | |
2dab38e2 SN |
285 | vb2_plane_size(vb, i), size); |
286 | return -EINVAL; | |
287 | } | |
2dab38e2 SN |
288 | vb2_set_plane_payload(vb, i, size); |
289 | } | |
290 | ||
291 | return 0; | |
292 | } | |
293 | ||
294 | static void buffer_queue(struct vb2_buffer *vb) | |
295 | { | |
2dab38e2 SN |
296 | struct fimc_vid_buffer *buf |
297 | = container_of(vb, struct fimc_vid_buffer, vb); | |
4db5e27e SN |
298 | struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); |
299 | struct fimc_dev *fimc = ctx->fimc_dev; | |
2dab38e2 SN |
300 | struct fimc_vid_cap *vid_cap = &fimc->vid_cap; |
301 | unsigned long flags; | |
8ec737ff | 302 | int min_bufs; |
2dab38e2 SN |
303 | |
304 | spin_lock_irqsave(&fimc->slock, flags); | |
8ec737ff SK |
305 | fimc_prepare_addr(ctx, &buf->vb, &ctx->d_frame, &buf->paddr); |
306 | ||
3e4748d8 SN |
307 | if (!test_bit(ST_CAPT_SUSPENDED, &fimc->state) && |
308 | !test_bit(ST_CAPT_STREAM, &fimc->state) && | |
309 | vid_cap->active_buf_cnt < FIMC_MAX_OUT_BUFS) { | |
8ec737ff SK |
310 | /* Setup the buffer directly for processing. */ |
311 | int buf_id = (vid_cap->reqbufs_count == 1) ? -1 : | |
312 | vid_cap->buf_index; | |
2dab38e2 | 313 | |
8ec737ff SK |
314 | fimc_hw_set_output_addr(fimc, &buf->paddr, buf_id); |
315 | buf->index = vid_cap->buf_index; | |
0295202c | 316 | fimc_active_queue_add(vid_cap, buf); |
2dab38e2 | 317 | |
8ec737ff SK |
318 | if (++vid_cap->buf_index >= FIMC_MAX_OUT_BUFS) |
319 | vid_cap->buf_index = 0; | |
320 | } else { | |
321 | fimc_pending_queue_add(vid_cap, buf); | |
2dab38e2 | 322 | } |
8ec737ff SK |
323 | |
324 | min_bufs = vid_cap->reqbufs_count > 1 ? 2 : 1; | |
325 | ||
4db5e27e | 326 | |
bd323e28 MS |
327 | if (vb2_is_streaming(&vid_cap->vbq) && |
328 | vid_cap->active_buf_cnt >= min_bufs && | |
4db5e27e | 329 | !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) { |
8ec737ff | 330 | fimc_activate_capture(ctx); |
4db5e27e | 331 | spin_unlock_irqrestore(&fimc->slock, flags); |
8ec737ff | 332 | |
4db5e27e SN |
333 | if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state)) |
334 | fimc_pipeline_s_stream(fimc, 1); | |
335 | return; | |
336 | } | |
2dab38e2 SN |
337 | spin_unlock_irqrestore(&fimc->slock, flags); |
338 | } | |
339 | ||
340 | static void fimc_lock(struct vb2_queue *vq) | |
341 | { | |
342 | struct fimc_ctx *ctx = vb2_get_drv_priv(vq); | |
343 | mutex_lock(&ctx->fimc_dev->lock); | |
344 | } | |
345 | ||
346 | static void fimc_unlock(struct vb2_queue *vq) | |
347 | { | |
348 | struct fimc_ctx *ctx = vb2_get_drv_priv(vq); | |
349 | mutex_unlock(&ctx->fimc_dev->lock); | |
350 | } | |
351 | ||
352 | static struct vb2_ops fimc_capture_qops = { | |
353 | .queue_setup = queue_setup, | |
354 | .buf_prepare = buffer_prepare, | |
355 | .buf_queue = buffer_queue, | |
2dab38e2 SN |
356 | .wait_prepare = fimc_unlock, |
357 | .wait_finish = fimc_lock, | |
358 | .start_streaming = start_streaming, | |
359 | .stop_streaming = stop_streaming, | |
360 | }; | |
361 | ||
131b6c61 SN |
362 | /** |
363 | * fimc_capture_ctrls_create - initialize the control handler | |
364 | * Initialize the capture video node control handler and fill it | |
365 | * with the FIMC controls. Inherit any sensor's controls if the | |
366 | * 'user_subdev_api' flag is false (default behaviour). | |
367 | * This function need to be called with the graph mutex held. | |
368 | */ | |
369 | int fimc_capture_ctrls_create(struct fimc_dev *fimc) | |
370 | { | |
371 | struct fimc_vid_cap *vid_cap = &fimc->vid_cap; | |
372 | int ret; | |
373 | ||
374 | if (WARN_ON(vid_cap->ctx == NULL)) | |
375 | return -ENXIO; | |
376 | if (vid_cap->ctx->ctrls_rdy) | |
377 | return 0; | |
378 | ||
379 | ret = fimc_ctrls_create(vid_cap->ctx); | |
380 | if (ret || vid_cap->user_subdev_api) | |
381 | return ret; | |
382 | ||
383 | return v4l2_ctrl_add_handler(&vid_cap->ctx->ctrl_handler, | |
384 | fimc->pipeline.sensor->ctrl_handler); | |
385 | } | |
386 | ||
237e0265 SN |
387 | static int fimc_capture_set_default_format(struct fimc_dev *fimc); |
388 | ||
5f3cc447 SN |
389 | static int fimc_capture_open(struct file *file) |
390 | { | |
391 | struct fimc_dev *fimc = video_drvdata(file); | |
e578588e SN |
392 | int ret = v4l2_fh_open(file); |
393 | ||
394 | if (ret) | |
395 | return ret; | |
5f3cc447 SN |
396 | |
397 | dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state); | |
398 | ||
399 | /* Return if the corresponding video mem2mem node is already opened. */ | |
400 | if (fimc_m2m_active(fimc)) | |
401 | return -EBUSY; | |
402 | ||
3e4748d8 | 403 | set_bit(ST_CAPT_BUSY, &fimc->state); |
4db5e27e SN |
404 | pm_runtime_get_sync(&fimc->pdev->dev); |
405 | ||
406 | if (++fimc->vid_cap.refcnt == 1) { | |
407 | ret = fimc_pipeline_initialize(fimc, | |
408 | &fimc->vid_cap.vfd->entity, true); | |
409 | if (ret < 0) { | |
410 | dev_err(&fimc->pdev->dev, | |
411 | "Video pipeline initialization failed\n"); | |
412 | pm_runtime_put_sync(&fimc->pdev->dev); | |
413 | fimc->vid_cap.refcnt--; | |
414 | v4l2_fh_release(file); | |
3e4748d8 | 415 | clear_bit(ST_CAPT_BUSY, &fimc->state); |
4db5e27e SN |
416 | return ret; |
417 | } | |
131b6c61 | 418 | ret = fimc_capture_ctrls_create(fimc); |
237e0265 SN |
419 | |
420 | if (!ret && !fimc->vid_cap.user_subdev_api) | |
421 | ret = fimc_capture_set_default_format(fimc); | |
4db5e27e | 422 | } |
131b6c61 | 423 | return ret; |
5f3cc447 SN |
424 | } |
425 | ||
426 | static int fimc_capture_close(struct file *file) | |
427 | { | |
428 | struct fimc_dev *fimc = video_drvdata(file); | |
429 | ||
5f3cc447 SN |
430 | dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state); |
431 | ||
432 | if (--fimc->vid_cap.refcnt == 0) { | |
3e4748d8 SN |
433 | clear_bit(ST_CAPT_BUSY, &fimc->state); |
434 | fimc_stop_capture(fimc, false); | |
4db5e27e | 435 | fimc_pipeline_shutdown(fimc); |
3e4748d8 | 436 | clear_bit(ST_CAPT_SUSPENDED, &fimc->state); |
5f3cc447 SN |
437 | } |
438 | ||
e9e21083 SN |
439 | pm_runtime_put(&fimc->pdev->dev); |
440 | ||
3e4748d8 SN |
441 | if (fimc->vid_cap.refcnt == 0) { |
442 | vb2_queue_release(&fimc->vid_cap.vbq); | |
443 | fimc_ctrls_delete(fimc->vid_cap.ctx); | |
444 | } | |
e578588e | 445 | return v4l2_fh_release(file); |
5f3cc447 SN |
446 | } |
447 | ||
448 | static unsigned int fimc_capture_poll(struct file *file, | |
449 | struct poll_table_struct *wait) | |
450 | { | |
e578588e | 451 | struct fimc_dev *fimc = video_drvdata(file); |
5f3cc447 | 452 | |
8293ebfc | 453 | return vb2_poll(&fimc->vid_cap.vbq, file, wait); |
5f3cc447 SN |
454 | } |
455 | ||
456 | static int fimc_capture_mmap(struct file *file, struct vm_area_struct *vma) | |
457 | { | |
e578588e | 458 | struct fimc_dev *fimc = video_drvdata(file); |
5f3cc447 | 459 | |
8293ebfc | 460 | return vb2_mmap(&fimc->vid_cap.vbq, vma); |
5f3cc447 SN |
461 | } |
462 | ||
5f3cc447 SN |
463 | static const struct v4l2_file_operations fimc_capture_fops = { |
464 | .owner = THIS_MODULE, | |
465 | .open = fimc_capture_open, | |
466 | .release = fimc_capture_close, | |
467 | .poll = fimc_capture_poll, | |
468 | .unlocked_ioctl = video_ioctl2, | |
469 | .mmap = fimc_capture_mmap, | |
470 | }; | |
471 | ||
237e0265 SN |
472 | /* |
473 | * Format and crop negotiation helpers | |
474 | */ | |
475 | ||
476 | static struct fimc_fmt *fimc_capture_try_format(struct fimc_ctx *ctx, | |
477 | u32 *width, u32 *height, | |
478 | u32 *code, u32 *fourcc, int pad) | |
479 | { | |
480 | bool rotation = ctx->rotation == 90 || ctx->rotation == 270; | |
481 | struct fimc_dev *fimc = ctx->fimc_dev; | |
482 | struct samsung_fimc_variant *var = fimc->variant; | |
483 | struct fimc_pix_limit *pl = var->pix_limit; | |
484 | struct fimc_frame *dst = &ctx->d_frame; | |
485 | u32 depth, min_w, max_w, min_h, align_h = 3; | |
486 | u32 mask = FMT_FLAGS_CAM; | |
487 | struct fimc_fmt *ffmt; | |
488 | ||
489 | /* Color conversion from/to JPEG is not supported */ | |
490 | if (code && ctx->s_frame.fmt && pad == FIMC_SD_PAD_SOURCE && | |
491 | fimc_fmt_is_jpeg(ctx->s_frame.fmt->color)) | |
492 | *code = V4L2_MBUS_FMT_JPEG_1X8; | |
493 | ||
494 | if (fourcc && *fourcc != V4L2_PIX_FMT_JPEG && pad != FIMC_SD_PAD_SINK) | |
495 | mask |= FMT_FLAGS_M2M; | |
496 | ||
497 | ffmt = fimc_find_format(fourcc, code, mask, 0); | |
498 | if (WARN_ON(!ffmt)) | |
499 | return NULL; | |
500 | if (code) | |
501 | *code = ffmt->mbus_code; | |
502 | if (fourcc) | |
503 | *fourcc = ffmt->fourcc; | |
504 | ||
505 | if (pad == FIMC_SD_PAD_SINK) { | |
506 | max_w = fimc_fmt_is_jpeg(ffmt->color) ? | |
507 | pl->scaler_dis_w : pl->scaler_en_w; | |
508 | /* Apply the camera input interface pixel constraints */ | |
509 | v4l_bound_align_image(width, max_t(u32, *width, 32), max_w, 4, | |
510 | height, max_t(u32, *height, 32), | |
511 | FIMC_CAMIF_MAX_HEIGHT, | |
512 | fimc_fmt_is_jpeg(ffmt->color) ? 3 : 1, | |
513 | 0); | |
514 | return ffmt; | |
515 | } | |
516 | /* Can't scale or crop in transparent (JPEG) transfer mode */ | |
517 | if (fimc_fmt_is_jpeg(ffmt->color)) { | |
518 | *width = ctx->s_frame.f_width; | |
519 | *height = ctx->s_frame.f_height; | |
520 | return ffmt; | |
521 | } | |
522 | /* Apply the scaler and the output DMA constraints */ | |
523 | max_w = rotation ? pl->out_rot_en_w : pl->out_rot_dis_w; | |
524 | min_w = ctx->state & FIMC_DST_CROP ? dst->width : var->min_out_pixsize; | |
525 | min_h = ctx->state & FIMC_DST_CROP ? dst->height : var->min_out_pixsize; | |
526 | if (fimc->id == 1 && var->pix_hoff) | |
527 | align_h = fimc_fmt_is_rgb(ffmt->color) ? 0 : 1; | |
528 | ||
529 | depth = fimc_get_format_depth(ffmt); | |
530 | v4l_bound_align_image(width, min_w, max_w, | |
531 | ffs(var->min_out_pixsize) - 1, | |
532 | height, min_h, FIMC_CAMIF_MAX_HEIGHT, | |
533 | align_h, | |
534 | 64/(ALIGN(depth, 8))); | |
535 | ||
536 | dbg("pad%d: code: 0x%x, %dx%d. dst fmt: %dx%d", | |
537 | pad, code ? *code : 0, *width, *height, | |
538 | dst->f_width, dst->f_height); | |
539 | ||
540 | return ffmt; | |
541 | } | |
542 | ||
543 | static void fimc_capture_try_crop(struct fimc_ctx *ctx, struct v4l2_rect *r, | |
544 | int pad) | |
545 | { | |
546 | bool rotate = ctx->rotation == 90 || ctx->rotation == 270; | |
547 | struct fimc_dev *fimc = ctx->fimc_dev; | |
548 | struct samsung_fimc_variant *var = fimc->variant; | |
549 | struct fimc_pix_limit *pl = var->pix_limit; | |
550 | struct fimc_frame *sink = &ctx->s_frame; | |
551 | u32 max_w, max_h, min_w = 0, min_h = 0, min_sz; | |
552 | u32 align_sz = 0, align_h = 4; | |
553 | u32 max_sc_h, max_sc_v; | |
554 | ||
555 | /* In JPEG transparent transfer mode cropping is not supported */ | |
556 | if (fimc_fmt_is_jpeg(ctx->d_frame.fmt->color)) { | |
557 | r->width = sink->f_width; | |
558 | r->height = sink->f_height; | |
559 | r->left = r->top = 0; | |
560 | return; | |
561 | } | |
562 | if (pad == FIMC_SD_PAD_SOURCE) { | |
563 | if (ctx->rotation != 90 && ctx->rotation != 270) | |
564 | align_h = 1; | |
565 | max_sc_h = min(SCALER_MAX_HRATIO, 1 << (ffs(sink->width) - 3)); | |
566 | max_sc_v = min(SCALER_MAX_VRATIO, 1 << (ffs(sink->height) - 1)); | |
567 | min_sz = var->min_out_pixsize; | |
568 | } else { | |
569 | u32 depth = fimc_get_format_depth(sink->fmt); | |
570 | align_sz = 64/ALIGN(depth, 8); | |
571 | min_sz = var->min_inp_pixsize; | |
572 | min_w = min_h = min_sz; | |
573 | max_sc_h = max_sc_v = 1; | |
574 | } | |
575 | /* | |
576 | * For the crop rectangle at source pad the following constraints | |
577 | * must be met: | |
578 | * - it must fit in the sink pad format rectangle (f_width/f_height); | |
579 | * - maximum downscaling ratio is 64; | |
580 | * - maximum crop size depends if the rotator is used or not; | |
581 | * - the sink pad format width/height must be 4 multiple of the | |
582 | * prescaler ratios determined by sink pad size and source pad crop, | |
583 | * the prescaler ratio is returned by fimc_get_scaler_factor(). | |
584 | */ | |
585 | max_w = min_t(u32, | |
586 | rotate ? pl->out_rot_en_w : pl->out_rot_dis_w, | |
587 | rotate ? sink->f_height : sink->f_width); | |
588 | max_h = min_t(u32, FIMC_CAMIF_MAX_HEIGHT, sink->f_height); | |
589 | if (pad == FIMC_SD_PAD_SOURCE) { | |
590 | min_w = min_t(u32, max_w, sink->f_width / max_sc_h); | |
591 | min_h = min_t(u32, max_h, sink->f_height / max_sc_v); | |
592 | if (rotate) { | |
593 | swap(max_sc_h, max_sc_v); | |
594 | swap(min_w, min_h); | |
595 | } | |
596 | } | |
597 | v4l_bound_align_image(&r->width, min_w, max_w, ffs(min_sz) - 1, | |
598 | &r->height, min_h, max_h, align_h, | |
599 | align_sz); | |
600 | /* Adjust left/top if cropping rectangle is out of bounds */ | |
601 | r->left = clamp_t(u32, r->left, 0, sink->f_width - r->width); | |
602 | r->top = clamp_t(u32, r->top, 0, sink->f_height - r->height); | |
603 | r->left = round_down(r->left, var->hor_offs_align); | |
604 | ||
605 | dbg("pad%d: (%d,%d)/%dx%d, sink fmt: %dx%d", | |
606 | pad, r->left, r->top, r->width, r->height, | |
607 | sink->f_width, sink->f_height); | |
608 | } | |
609 | ||
610 | /* | |
611 | * The video node ioctl operations | |
612 | */ | |
5f3cc447 SN |
613 | static int fimc_vidioc_querycap_capture(struct file *file, void *priv, |
614 | struct v4l2_capability *cap) | |
615 | { | |
e578588e | 616 | struct fimc_dev *fimc = video_drvdata(file); |
5f3cc447 SN |
617 | |
618 | strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1); | |
619 | strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1); | |
620 | cap->bus_info[0] = 0; | |
8f401543 | 621 | cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE_MPLANE; |
5f3cc447 SN |
622 | |
623 | return 0; | |
624 | } | |
625 | ||
cf52df8a SN |
626 | static int fimc_cap_enum_fmt_mplane(struct file *file, void *priv, |
627 | struct v4l2_fmtdesc *f) | |
628 | { | |
629 | struct fimc_fmt *fmt; | |
630 | ||
631 | fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM | FMT_FLAGS_M2M, | |
632 | f->index); | |
633 | if (!fmt) | |
634 | return -EINVAL; | |
635 | strncpy(f->description, fmt->name, sizeof(f->description) - 1); | |
636 | f->pixelformat = fmt->fourcc; | |
637 | if (fmt->fourcc == V4L2_MBUS_FMT_JPEG_1X8) | |
638 | f->flags |= V4L2_FMT_FLAG_COMPRESSED; | |
639 | return 0; | |
640 | } | |
641 | ||
237e0265 SN |
642 | /** |
643 | * fimc_pipeline_try_format - negotiate and/or set formats at pipeline | |
644 | * elements | |
645 | * @ctx: FIMC capture context | |
646 | * @tfmt: media bus format to try/set on subdevs | |
647 | * @fmt_id: fimc pixel format id corresponding to returned @tfmt (output) | |
648 | * @set: true to set format on subdevs, false to try only | |
649 | */ | |
650 | static int fimc_pipeline_try_format(struct fimc_ctx *ctx, | |
651 | struct v4l2_mbus_framefmt *tfmt, | |
652 | struct fimc_fmt **fmt_id, | |
653 | bool set) | |
654 | { | |
655 | struct fimc_dev *fimc = ctx->fimc_dev; | |
656 | struct v4l2_subdev *sd = fimc->pipeline.sensor; | |
657 | struct v4l2_subdev *csis = fimc->pipeline.csis; | |
658 | struct v4l2_subdev_format sfmt; | |
659 | struct v4l2_mbus_framefmt *mf = &sfmt.format; | |
660 | struct fimc_fmt *ffmt = NULL; | |
661 | int ret, i = 0; | |
662 | ||
663 | if (WARN_ON(!sd || !tfmt)) | |
664 | return -EINVAL; | |
5f3cc447 | 665 | |
237e0265 SN |
666 | memset(&sfmt, 0, sizeof(sfmt)); |
667 | sfmt.format = *tfmt; | |
668 | ||
669 | sfmt.which = set ? V4L2_SUBDEV_FORMAT_ACTIVE : V4L2_SUBDEV_FORMAT_TRY; | |
670 | while (1) { | |
671 | ffmt = fimc_find_format(NULL, mf->code != 0 ? &mf->code : NULL, | |
672 | FMT_FLAGS_CAM, i++); | |
673 | if (ffmt == NULL) { | |
674 | /* | |
675 | * Notify user-space if common pixel code for | |
676 | * host and sensor does not exist. | |
677 | */ | |
678 | return -EINVAL; | |
679 | } | |
680 | mf->code = tfmt->code = ffmt->mbus_code; | |
5f3cc447 | 681 | |
237e0265 SN |
682 | ret = v4l2_subdev_call(sd, pad, set_fmt, NULL, &sfmt); |
683 | if (ret) | |
684 | return ret; | |
685 | if (mf->code != tfmt->code) { | |
686 | mf->code = 0; | |
687 | continue; | |
688 | } | |
689 | if (mf->width != tfmt->width || mf->width != tfmt->width) { | |
690 | u32 fcc = ffmt->fourcc; | |
691 | tfmt->width = mf->width; | |
692 | tfmt->height = mf->height; | |
693 | ffmt = fimc_capture_try_format(ctx, | |
694 | &tfmt->width, &tfmt->height, | |
695 | NULL, &fcc, FIMC_SD_PAD_SOURCE); | |
696 | if (ffmt && ffmt->mbus_code) | |
697 | mf->code = ffmt->mbus_code; | |
698 | if (mf->width != tfmt->width || mf->width != tfmt->width) | |
699 | continue; | |
700 | tfmt->code = mf->code; | |
701 | } | |
702 | if (csis) | |
703 | ret = v4l2_subdev_call(csis, pad, set_fmt, NULL, &sfmt); | |
5f3cc447 | 704 | |
237e0265 SN |
705 | if (mf->code == tfmt->code && |
706 | mf->width == tfmt->width && mf->width == tfmt->width) | |
707 | break; | |
708 | } | |
5f3cc447 | 709 | |
237e0265 SN |
710 | if (fmt_id && ffmt) |
711 | *fmt_id = ffmt; | |
712 | *tfmt = *mf; | |
5f3cc447 | 713 | |
237e0265 SN |
714 | dbg("code: 0x%x, %dx%d, %p", mf->code, mf->width, mf->height, ffmt); |
715 | return 0; | |
716 | } | |
5f3cc447 | 717 | |
e578588e SN |
718 | static int fimc_cap_g_fmt_mplane(struct file *file, void *fh, |
719 | struct v4l2_format *f) | |
720 | { | |
721 | struct fimc_dev *fimc = video_drvdata(file); | |
722 | struct fimc_ctx *ctx = fimc->vid_cap.ctx; | |
723 | ||
724 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) | |
725 | return -EINVAL; | |
726 | ||
727 | return fimc_fill_format(&ctx->d_frame, f); | |
728 | } | |
729 | ||
730 | static int fimc_cap_try_fmt_mplane(struct file *file, void *fh, | |
731 | struct v4l2_format *f) | |
732 | { | |
237e0265 | 733 | struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp; |
e578588e SN |
734 | struct fimc_dev *fimc = video_drvdata(file); |
735 | struct fimc_ctx *ctx = fimc->vid_cap.ctx; | |
237e0265 SN |
736 | struct v4l2_mbus_framefmt mf; |
737 | struct fimc_fmt *ffmt = NULL; | |
738 | ||
739 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) | |
740 | return -EINVAL; | |
741 | ||
742 | if (pix->pixelformat == V4L2_PIX_FMT_JPEG) { | |
743 | fimc_capture_try_format(ctx, &pix->width, &pix->height, | |
744 | NULL, &pix->pixelformat, | |
745 | FIMC_SD_PAD_SINK); | |
746 | ctx->s_frame.f_width = pix->width; | |
747 | ctx->s_frame.f_height = pix->height; | |
748 | } | |
749 | ffmt = fimc_capture_try_format(ctx, &pix->width, &pix->height, | |
750 | NULL, &pix->pixelformat, | |
751 | FIMC_SD_PAD_SOURCE); | |
752 | if (!ffmt) | |
753 | return -EINVAL; | |
754 | ||
755 | if (!fimc->vid_cap.user_subdev_api) { | |
756 | mf.width = pix->width; | |
757 | mf.height = pix->height; | |
758 | mf.code = ffmt->mbus_code; | |
759 | fimc_md_graph_lock(fimc); | |
760 | fimc_pipeline_try_format(ctx, &mf, &ffmt, false); | |
761 | fimc_md_graph_unlock(fimc); | |
762 | ||
763 | pix->width = mf.width; | |
764 | pix->height = mf.height; | |
765 | if (ffmt) | |
766 | pix->pixelformat = ffmt->fourcc; | |
767 | } | |
e578588e | 768 | |
237e0265 | 769 | fimc_adjust_mplane_format(ffmt, pix->width, pix->height, pix); |
4db5e27e | 770 | return 0; |
e578588e SN |
771 | } |
772 | ||
ee7160e5 SN |
773 | static void fimc_capture_mark_jpeg_xfer(struct fimc_ctx *ctx, bool jpeg) |
774 | { | |
775 | ctx->scaler.enabled = !jpeg; | |
776 | fimc_ctrls_activate(ctx, !jpeg); | |
777 | ||
778 | if (jpeg) | |
779 | set_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state); | |
780 | else | |
781 | clear_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state); | |
782 | } | |
783 | ||
237e0265 | 784 | static int fimc_capture_set_format(struct fimc_dev *fimc, struct v4l2_format *f) |
5f3cc447 | 785 | { |
e578588e | 786 | struct fimc_ctx *ctx = fimc->vid_cap.ctx; |
237e0265 SN |
787 | struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp; |
788 | struct v4l2_mbus_framefmt *mf = &fimc->vid_cap.mf; | |
789 | struct fimc_frame *ff = &ctx->d_frame; | |
790 | struct fimc_fmt *s_fmt = NULL; | |
791 | int ret, i; | |
5f3cc447 | 792 | |
ef7af59b | 793 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) |
5f3cc447 | 794 | return -EINVAL; |
237e0265 | 795 | if (vb2_is_busy(&fimc->vid_cap.vbq)) |
ef7af59b | 796 | return -EBUSY; |
5f3cc447 | 797 | |
237e0265 SN |
798 | /* Pre-configure format at camera interface input, for JPEG only */ |
799 | if (pix->pixelformat == V4L2_PIX_FMT_JPEG) { | |
800 | fimc_capture_try_format(ctx, &pix->width, &pix->height, | |
801 | NULL, &pix->pixelformat, | |
802 | FIMC_SD_PAD_SINK); | |
803 | ctx->s_frame.f_width = pix->width; | |
804 | ctx->s_frame.f_height = pix->height; | |
805 | } | |
806 | /* Try the format at the scaler and the DMA output */ | |
807 | ff->fmt = fimc_capture_try_format(ctx, &pix->width, &pix->height, | |
808 | NULL, &pix->pixelformat, | |
809 | FIMC_SD_PAD_SOURCE); | |
810 | if (!ff->fmt) | |
8293ebfc | 811 | return -EINVAL; |
237e0265 SN |
812 | /* Try to match format at the host and the sensor */ |
813 | if (!fimc->vid_cap.user_subdev_api) { | |
814 | mf->code = ff->fmt->mbus_code; | |
815 | mf->width = pix->width; | |
816 | mf->height = pix->height; | |
817 | ||
818 | fimc_md_graph_lock(fimc); | |
819 | ret = fimc_pipeline_try_format(ctx, mf, &s_fmt, true); | |
820 | fimc_md_graph_unlock(fimc); | |
821 | if (ret) | |
822 | return ret; | |
823 | pix->width = mf->width; | |
824 | pix->height = mf->height; | |
825 | } | |
826 | fimc_adjust_mplane_format(ff->fmt, pix->width, pix->height, pix); | |
827 | for (i = 0; i < ff->fmt->colplanes; i++) | |
828 | ff->payload[i] = | |
829 | (pix->width * pix->height * ff->fmt->depth[i]) / 8; | |
830 | ||
831 | set_frame_bounds(ff, pix->width, pix->height); | |
832 | /* Reset the composition rectangle if not yet configured */ | |
833 | if (!(ctx->state & FIMC_DST_CROP)) | |
834 | set_frame_crop(ff, 0, 0, pix->width, pix->height); | |
835 | ||
ee7160e5 SN |
836 | fimc_capture_mark_jpeg_xfer(ctx, fimc_fmt_is_jpeg(ff->fmt->color)); |
837 | ||
237e0265 SN |
838 | /* Reset cropping and set format at the camera interface input */ |
839 | if (!fimc->vid_cap.user_subdev_api) { | |
840 | ctx->s_frame.fmt = s_fmt; | |
841 | set_frame_bounds(&ctx->s_frame, pix->width, pix->height); | |
842 | set_frame_crop(&ctx->s_frame, 0, 0, pix->width, pix->height); | |
045030fa | 843 | } |
ef7af59b | 844 | |
237e0265 SN |
845 | return ret; |
846 | } | |
5f3cc447 | 847 | |
237e0265 SN |
848 | static int fimc_cap_s_fmt_mplane(struct file *file, void *priv, |
849 | struct v4l2_format *f) | |
850 | { | |
851 | struct fimc_dev *fimc = video_drvdata(file); | |
5f3cc447 | 852 | |
237e0265 | 853 | return fimc_capture_set_format(fimc, f); |
5f3cc447 SN |
854 | } |
855 | ||
856 | static int fimc_cap_enum_input(struct file *file, void *priv, | |
3e002182 | 857 | struct v4l2_input *i) |
5f3cc447 | 858 | { |
e578588e | 859 | struct fimc_dev *fimc = video_drvdata(file); |
4db5e27e | 860 | struct v4l2_subdev *sd = fimc->pipeline.sensor; |
5f3cc447 | 861 | |
3e002182 | 862 | if (i->index != 0) |
5f3cc447 SN |
863 | return -EINVAL; |
864 | ||
5f3cc447 | 865 | i->type = V4L2_INPUT_TYPE_CAMERA; |
4db5e27e SN |
866 | if (sd) |
867 | strlcpy(i->name, sd->name, sizeof(i->name)); | |
5f3cc447 SN |
868 | return 0; |
869 | } | |
870 | ||
3e002182 | 871 | static int fimc_cap_s_input(struct file *file, void *priv, unsigned int i) |
5f3cc447 | 872 | { |
3e002182 | 873 | return i == 0 ? i : -EINVAL; |
5f3cc447 SN |
874 | } |
875 | ||
3e002182 | 876 | static int fimc_cap_g_input(struct file *file, void *priv, unsigned int *i) |
5f3cc447 | 877 | { |
3e002182 | 878 | *i = 0; |
5f3cc447 SN |
879 | return 0; |
880 | } | |
881 | ||
237e0265 SN |
882 | /** |
883 | * fimc_pipeline_validate - check for formats inconsistencies | |
884 | * between source and sink pad of each link | |
885 | * | |
886 | * Return 0 if all formats match or -EPIPE otherwise. | |
887 | */ | |
888 | static int fimc_pipeline_validate(struct fimc_dev *fimc) | |
889 | { | |
890 | struct v4l2_subdev_format sink_fmt, src_fmt; | |
891 | struct fimc_vid_cap *vid_cap = &fimc->vid_cap; | |
892 | struct v4l2_subdev *sd; | |
893 | struct media_pad *pad; | |
894 | int ret; | |
895 | ||
896 | /* Start with the video capture node pad */ | |
897 | pad = media_entity_remote_source(&vid_cap->vd_pad); | |
898 | if (pad == NULL) | |
899 | return -EPIPE; | |
900 | /* FIMC.{N} subdevice */ | |
901 | sd = media_entity_to_v4l2_subdev(pad->entity); | |
902 | ||
903 | while (1) { | |
904 | /* Retrieve format at the sink pad */ | |
905 | pad = &sd->entity.pads[0]; | |
906 | if (!(pad->flags & MEDIA_PAD_FL_SINK)) | |
907 | break; | |
908 | /* Don't call FIMC subdev operation to avoid nested locking */ | |
909 | if (sd == fimc->vid_cap.subdev) { | |
910 | struct fimc_frame *ff = &vid_cap->ctx->s_frame; | |
911 | sink_fmt.format.width = ff->f_width; | |
912 | sink_fmt.format.height = ff->f_height; | |
913 | sink_fmt.format.code = ff->fmt ? ff->fmt->mbus_code : 0; | |
914 | } else { | |
915 | sink_fmt.pad = pad->index; | |
916 | sink_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; | |
917 | ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sink_fmt); | |
918 | if (ret < 0 && ret != -ENOIOCTLCMD) | |
919 | return -EPIPE; | |
920 | } | |
921 | /* Retrieve format at the source pad */ | |
922 | pad = media_entity_remote_source(pad); | |
923 | if (pad == NULL || | |
924 | media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV) | |
925 | break; | |
926 | ||
927 | sd = media_entity_to_v4l2_subdev(pad->entity); | |
928 | src_fmt.pad = pad->index; | |
929 | src_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; | |
930 | ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &src_fmt); | |
931 | if (ret < 0 && ret != -ENOIOCTLCMD) | |
932 | return -EPIPE; | |
933 | ||
934 | if (src_fmt.format.width != sink_fmt.format.width || | |
935 | src_fmt.format.height != sink_fmt.format.height || | |
936 | src_fmt.format.code != sink_fmt.format.code) | |
937 | return -EPIPE; | |
938 | } | |
939 | return 0; | |
940 | } | |
941 | ||
5f3cc447 | 942 | static int fimc_cap_streamon(struct file *file, void *priv, |
2dab38e2 | 943 | enum v4l2_buf_type type) |
5f3cc447 | 944 | { |
e578588e | 945 | struct fimc_dev *fimc = video_drvdata(file); |
4db5e27e | 946 | struct fimc_pipeline *p = &fimc->pipeline; |
237e0265 | 947 | int ret; |
5f3cc447 | 948 | |
4db5e27e | 949 | if (fimc_capture_active(fimc)) |
8293ebfc | 950 | return -EBUSY; |
5f3cc447 | 951 | |
4db5e27e | 952 | media_entity_pipeline_start(&p->sensor->entity, p->pipe); |
5f3cc447 | 953 | |
237e0265 SN |
954 | if (fimc->vid_cap.user_subdev_api) { |
955 | ret = fimc_pipeline_validate(fimc); | |
956 | if (ret) | |
957 | return ret; | |
958 | } | |
8293ebfc | 959 | return vb2_streamon(&fimc->vid_cap.vbq, type); |
5f3cc447 SN |
960 | } |
961 | ||
962 | static int fimc_cap_streamoff(struct file *file, void *priv, | |
8293ebfc | 963 | enum v4l2_buf_type type) |
5f3cc447 | 964 | { |
e578588e | 965 | struct fimc_dev *fimc = video_drvdata(file); |
4db5e27e SN |
966 | struct v4l2_subdev *sd = fimc->pipeline.sensor; |
967 | int ret; | |
5f3cc447 | 968 | |
4db5e27e SN |
969 | ret = vb2_streamoff(&fimc->vid_cap.vbq, type); |
970 | if (ret == 0) | |
971 | media_entity_pipeline_stop(&sd->entity); | |
972 | return ret; | |
5f3cc447 SN |
973 | } |
974 | ||
975 | static int fimc_cap_reqbufs(struct file *file, void *priv, | |
ef7af59b | 976 | struct v4l2_requestbuffers *reqbufs) |
5f3cc447 | 977 | { |
e578588e SN |
978 | struct fimc_dev *fimc = video_drvdata(file); |
979 | int ret = vb2_reqbufs(&fimc->vid_cap.vbq, reqbufs); | |
5f3cc447 | 980 | |
5f3cc447 | 981 | if (!ret) |
e578588e | 982 | fimc->vid_cap.reqbufs_count = reqbufs->count; |
5f3cc447 SN |
983 | return ret; |
984 | } | |
985 | ||
986 | static int fimc_cap_querybuf(struct file *file, void *priv, | |
987 | struct v4l2_buffer *buf) | |
988 | { | |
e578588e | 989 | struct fimc_dev *fimc = video_drvdata(file); |
5f3cc447 | 990 | |
e578588e | 991 | return vb2_querybuf(&fimc->vid_cap.vbq, buf); |
5f3cc447 SN |
992 | } |
993 | ||
994 | static int fimc_cap_qbuf(struct file *file, void *priv, | |
995 | struct v4l2_buffer *buf) | |
996 | { | |
e578588e SN |
997 | struct fimc_dev *fimc = video_drvdata(file); |
998 | ||
999 | return vb2_qbuf(&fimc->vid_cap.vbq, buf); | |
5f3cc447 SN |
1000 | } |
1001 | ||
1002 | static int fimc_cap_dqbuf(struct file *file, void *priv, | |
1003 | struct v4l2_buffer *buf) | |
1004 | { | |
e578588e SN |
1005 | struct fimc_dev *fimc = video_drvdata(file); |
1006 | ||
1007 | return vb2_dqbuf(&fimc->vid_cap.vbq, buf, file->f_flags & O_NONBLOCK); | |
5f3cc447 SN |
1008 | } |
1009 | ||
e004e02f SN |
1010 | static int fimc_cap_cropcap(struct file *file, void *fh, |
1011 | struct v4l2_cropcap *cr) | |
1012 | { | |
e578588e SN |
1013 | struct fimc_dev *fimc = video_drvdata(file); |
1014 | struct fimc_frame *f = &fimc->vid_cap.ctx->s_frame; | |
e004e02f | 1015 | |
ef7af59b | 1016 | if (cr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) |
e004e02f SN |
1017 | return -EINVAL; |
1018 | ||
e004e02f SN |
1019 | cr->bounds.left = 0; |
1020 | cr->bounds.top = 0; | |
1021 | cr->bounds.width = f->o_width; | |
1022 | cr->bounds.height = f->o_height; | |
1023 | cr->defrect = cr->bounds; | |
1024 | ||
e004e02f SN |
1025 | return 0; |
1026 | } | |
1027 | ||
1028 | static int fimc_cap_g_crop(struct file *file, void *fh, struct v4l2_crop *cr) | |
1029 | { | |
e578588e SN |
1030 | struct fimc_dev *fimc = video_drvdata(file); |
1031 | struct fimc_frame *f = &fimc->vid_cap.ctx->s_frame; | |
8293ebfc | 1032 | |
e004e02f SN |
1033 | cr->c.left = f->offs_h; |
1034 | cr->c.top = f->offs_v; | |
1035 | cr->c.width = f->width; | |
1036 | cr->c.height = f->height; | |
1037 | ||
e004e02f SN |
1038 | return 0; |
1039 | } | |
1040 | ||
e578588e | 1041 | static int fimc_cap_s_crop(struct file *file, void *fh, struct v4l2_crop *cr) |
5f3cc447 | 1042 | { |
e578588e SN |
1043 | struct fimc_dev *fimc = video_drvdata(file); |
1044 | struct fimc_ctx *ctx = fimc->vid_cap.ctx; | |
237e0265 SN |
1045 | struct fimc_frame *ff; |
1046 | unsigned long flags; | |
5f3cc447 | 1047 | |
237e0265 SN |
1048 | fimc_capture_try_crop(ctx, &cr->c, FIMC_SD_PAD_SINK); |
1049 | ff = &ctx->s_frame; | |
5f3cc447 | 1050 | |
237e0265 SN |
1051 | spin_lock_irqsave(&fimc->slock, flags); |
1052 | set_frame_crop(ff, cr->c.left, cr->c.top, cr->c.width, cr->c.height); | |
1053 | set_bit(ST_CAPT_APPLY_CFG, &fimc->state); | |
1054 | spin_unlock_irqrestore(&fimc->slock, flags); | |
8293ebfc SN |
1055 | |
1056 | return 0; | |
5f3cc447 SN |
1057 | } |
1058 | ||
5f3cc447 SN |
1059 | static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops = { |
1060 | .vidioc_querycap = fimc_vidioc_querycap_capture, | |
1061 | ||
cf52df8a | 1062 | .vidioc_enum_fmt_vid_cap_mplane = fimc_cap_enum_fmt_mplane, |
e578588e | 1063 | .vidioc_try_fmt_vid_cap_mplane = fimc_cap_try_fmt_mplane, |
ef7af59b | 1064 | .vidioc_s_fmt_vid_cap_mplane = fimc_cap_s_fmt_mplane, |
e578588e | 1065 | .vidioc_g_fmt_vid_cap_mplane = fimc_cap_g_fmt_mplane, |
5f3cc447 SN |
1066 | |
1067 | .vidioc_reqbufs = fimc_cap_reqbufs, | |
1068 | .vidioc_querybuf = fimc_cap_querybuf, | |
1069 | ||
1070 | .vidioc_qbuf = fimc_cap_qbuf, | |
1071 | .vidioc_dqbuf = fimc_cap_dqbuf, | |
1072 | ||
1073 | .vidioc_streamon = fimc_cap_streamon, | |
1074 | .vidioc_streamoff = fimc_cap_streamoff, | |
1075 | ||
e004e02f | 1076 | .vidioc_g_crop = fimc_cap_g_crop, |
5f3cc447 | 1077 | .vidioc_s_crop = fimc_cap_s_crop, |
e004e02f | 1078 | .vidioc_cropcap = fimc_cap_cropcap, |
5f3cc447 SN |
1079 | |
1080 | .vidioc_enum_input = fimc_cap_enum_input, | |
1081 | .vidioc_s_input = fimc_cap_s_input, | |
1082 | .vidioc_g_input = fimc_cap_g_input, | |
1083 | }; | |
1084 | ||
237e0265 | 1085 | /* Capture subdev media entity operations */ |
d09a7dc8 SN |
1086 | static int fimc_link_setup(struct media_entity *entity, |
1087 | const struct media_pad *local, | |
1088 | const struct media_pad *remote, u32 flags) | |
1089 | { | |
237e0265 SN |
1090 | struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity); |
1091 | struct fimc_dev *fimc = v4l2_get_subdevdata(sd); | |
1092 | ||
1093 | if (media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV) | |
1094 | return -EINVAL; | |
d09a7dc8 SN |
1095 | |
1096 | if (WARN_ON(fimc == NULL)) | |
1097 | return 0; | |
1098 | ||
1099 | dbg("%s --> %s, flags: 0x%x. input: 0x%x", | |
1100 | local->entity->name, remote->entity->name, flags, | |
1101 | fimc->vid_cap.input); | |
1102 | ||
1103 | if (flags & MEDIA_LNK_FL_ENABLED) { | |
1104 | if (fimc->vid_cap.input != 0) | |
1105 | return -EBUSY; | |
1106 | fimc->vid_cap.input = sd->grp_id; | |
1107 | return 0; | |
1108 | } | |
1109 | ||
1110 | fimc->vid_cap.input = 0; | |
1111 | return 0; | |
1112 | } | |
1113 | ||
237e0265 | 1114 | static const struct media_entity_operations fimc_sd_media_ops = { |
d09a7dc8 SN |
1115 | .link_setup = fimc_link_setup, |
1116 | }; | |
1117 | ||
e1d72f4d SN |
1118 | /** |
1119 | * fimc_sensor_notify - v4l2_device notification from a sensor subdev | |
1120 | * @sd: pointer to a subdev generating the notification | |
1121 | * @notification: the notification type, must be S5P_FIMC_TX_END_NOTIFY | |
1122 | * @arg: pointer to an u32 type integer that stores the frame payload value | |
1123 | * | |
1124 | * The End Of Frame notification sent by sensor subdev in its still capture | |
1125 | * mode. If there is only a single VSYNC generated by the sensor at the | |
1126 | * beginning of a frame transmission, FIMC does not issue the LastIrq | |
1127 | * (end of frame) interrupt. And this notification is used to complete the | |
1128 | * frame capture and returning a buffer to user-space. Subdev drivers should | |
1129 | * call this notification from their last 'End of frame capture' interrupt. | |
1130 | */ | |
1131 | void fimc_sensor_notify(struct v4l2_subdev *sd, unsigned int notification, | |
1132 | void *arg) | |
1133 | { | |
1134 | struct fimc_sensor_info *sensor; | |
1135 | struct fimc_vid_buffer *buf; | |
1136 | struct fimc_md *fmd; | |
1137 | struct fimc_dev *fimc; | |
1138 | unsigned long flags; | |
1139 | ||
1140 | if (sd == NULL) | |
1141 | return; | |
1142 | ||
1143 | sensor = v4l2_get_subdev_hostdata(sd); | |
1144 | fmd = entity_to_fimc_mdev(&sd->entity); | |
1145 | ||
1146 | spin_lock_irqsave(&fmd->slock, flags); | |
1147 | fimc = sensor ? sensor->host : NULL; | |
1148 | ||
1149 | if (fimc && arg && notification == S5P_FIMC_TX_END_NOTIFY && | |
1150 | test_bit(ST_CAPT_PEND, &fimc->state)) { | |
1151 | unsigned long irq_flags; | |
1152 | spin_lock_irqsave(&fimc->slock, irq_flags); | |
1153 | if (!list_empty(&fimc->vid_cap.active_buf_q)) { | |
1154 | buf = list_entry(fimc->vid_cap.active_buf_q.next, | |
1155 | struct fimc_vid_buffer, list); | |
1156 | vb2_set_plane_payload(&buf->vb, 0, *((u32 *)arg)); | |
1157 | } | |
1158 | fimc_capture_irq_handler(fimc, true); | |
1159 | fimc_deactivate_capture(fimc); | |
1160 | spin_unlock_irqrestore(&fimc->slock, irq_flags); | |
1161 | } | |
1162 | spin_unlock_irqrestore(&fmd->slock, flags); | |
1163 | } | |
1164 | ||
237e0265 SN |
1165 | static int fimc_subdev_enum_mbus_code(struct v4l2_subdev *sd, |
1166 | struct v4l2_subdev_fh *fh, | |
1167 | struct v4l2_subdev_mbus_code_enum *code) | |
1168 | { | |
1169 | struct fimc_fmt *fmt; | |
1170 | ||
1171 | fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, code->index); | |
1172 | if (!fmt) | |
1173 | return -EINVAL; | |
1174 | code->code = fmt->mbus_code; | |
1175 | return 0; | |
1176 | } | |
1177 | ||
1178 | static int fimc_subdev_get_fmt(struct v4l2_subdev *sd, | |
1179 | struct v4l2_subdev_fh *fh, | |
1180 | struct v4l2_subdev_format *fmt) | |
1181 | { | |
1182 | struct fimc_dev *fimc = v4l2_get_subdevdata(sd); | |
1183 | struct fimc_ctx *ctx = fimc->vid_cap.ctx; | |
1184 | struct v4l2_mbus_framefmt *mf; | |
1185 | struct fimc_frame *ff; | |
1186 | ||
1187 | if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { | |
1188 | mf = v4l2_subdev_get_try_format(fh, fmt->pad); | |
1189 | fmt->format = *mf; | |
1190 | return 0; | |
1191 | } | |
1192 | mf = &fmt->format; | |
1193 | mf->colorspace = V4L2_COLORSPACE_JPEG; | |
1194 | ff = fmt->pad == FIMC_SD_PAD_SINK ? &ctx->s_frame : &ctx->d_frame; | |
1195 | ||
1196 | mutex_lock(&fimc->lock); | |
1197 | /* The pixel code is same on both input and output pad */ | |
1198 | if (!WARN_ON(ctx->s_frame.fmt == NULL)) | |
1199 | mf->code = ctx->s_frame.fmt->mbus_code; | |
1200 | mf->width = ff->f_width; | |
1201 | mf->height = ff->f_height; | |
1202 | mutex_unlock(&fimc->lock); | |
1203 | ||
1204 | return 0; | |
1205 | } | |
1206 | ||
1207 | static int fimc_subdev_set_fmt(struct v4l2_subdev *sd, | |
1208 | struct v4l2_subdev_fh *fh, | |
1209 | struct v4l2_subdev_format *fmt) | |
1210 | { | |
1211 | struct fimc_dev *fimc = v4l2_get_subdevdata(sd); | |
1212 | struct v4l2_mbus_framefmt *mf = &fmt->format; | |
1213 | struct fimc_ctx *ctx = fimc->vid_cap.ctx; | |
1214 | struct fimc_frame *ff; | |
1215 | struct fimc_fmt *ffmt; | |
1216 | ||
1217 | dbg("pad%d: code: 0x%x, %dx%d", | |
1218 | fmt->pad, mf->code, mf->width, mf->height); | |
1219 | ||
1220 | if (fmt->pad == FIMC_SD_PAD_SOURCE && | |
1221 | vb2_is_busy(&fimc->vid_cap.vbq)) | |
1222 | return -EBUSY; | |
1223 | ||
1224 | mutex_lock(&fimc->lock); | |
1225 | ffmt = fimc_capture_try_format(ctx, &mf->width, &mf->height, | |
1226 | &mf->code, NULL, fmt->pad); | |
1227 | mutex_unlock(&fimc->lock); | |
1228 | mf->colorspace = V4L2_COLORSPACE_JPEG; | |
1229 | ||
1230 | if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { | |
1231 | mf = v4l2_subdev_get_try_format(fh, fmt->pad); | |
1232 | *mf = fmt->format; | |
1233 | return 0; | |
1234 | } | |
ee7160e5 SN |
1235 | fimc_capture_mark_jpeg_xfer(ctx, fimc_fmt_is_jpeg(ffmt->color)); |
1236 | ||
237e0265 SN |
1237 | ff = fmt->pad == FIMC_SD_PAD_SINK ? |
1238 | &ctx->s_frame : &ctx->d_frame; | |
1239 | ||
1240 | mutex_lock(&fimc->lock); | |
1241 | set_frame_bounds(ff, mf->width, mf->height); | |
1242 | ff->fmt = ffmt; | |
1243 | ||
1244 | /* Reset the crop rectangle if required. */ | |
1245 | if (!(fmt->pad == FIMC_SD_PAD_SOURCE && (ctx->state & FIMC_DST_CROP))) | |
1246 | set_frame_crop(ff, 0, 0, mf->width, mf->height); | |
1247 | ||
1248 | if (fmt->pad == FIMC_SD_PAD_SINK) | |
1249 | ctx->state &= ~FIMC_DST_CROP; | |
1250 | mutex_unlock(&fimc->lock); | |
1251 | return 0; | |
1252 | } | |
1253 | ||
1254 | static int fimc_subdev_get_crop(struct v4l2_subdev *sd, | |
1255 | struct v4l2_subdev_fh *fh, | |
1256 | struct v4l2_subdev_crop *crop) | |
1257 | { | |
1258 | struct fimc_dev *fimc = v4l2_get_subdevdata(sd); | |
1259 | struct fimc_ctx *ctx = fimc->vid_cap.ctx; | |
1260 | struct v4l2_rect *r = &crop->rect; | |
1261 | struct fimc_frame *ff; | |
1262 | ||
1263 | if (crop->which == V4L2_SUBDEV_FORMAT_TRY) { | |
1264 | crop->rect = *v4l2_subdev_get_try_crop(fh, crop->pad); | |
1265 | return 0; | |
1266 | } | |
1267 | ff = crop->pad == FIMC_SD_PAD_SINK ? | |
1268 | &ctx->s_frame : &ctx->d_frame; | |
1269 | ||
1270 | mutex_lock(&fimc->lock); | |
1271 | r->left = ff->offs_h; | |
1272 | r->top = ff->offs_v; | |
1273 | r->width = ff->width; | |
1274 | r->height = ff->height; | |
1275 | mutex_unlock(&fimc->lock); | |
1276 | ||
1277 | dbg("ff:%p, pad%d: l:%d, t:%d, %dx%d, f_w: %d, f_h: %d", | |
1278 | ff, crop->pad, r->left, r->top, r->width, r->height, | |
1279 | ff->f_width, ff->f_height); | |
1280 | ||
1281 | return 0; | |
1282 | } | |
1283 | ||
1284 | static int fimc_subdev_set_crop(struct v4l2_subdev *sd, | |
1285 | struct v4l2_subdev_fh *fh, | |
1286 | struct v4l2_subdev_crop *crop) | |
1287 | { | |
1288 | struct fimc_dev *fimc = v4l2_get_subdevdata(sd); | |
1289 | struct fimc_ctx *ctx = fimc->vid_cap.ctx; | |
1290 | struct v4l2_rect *r = &crop->rect; | |
1291 | struct fimc_frame *ff; | |
1292 | unsigned long flags; | |
1293 | ||
1294 | dbg("(%d,%d)/%dx%d", r->left, r->top, r->width, r->height); | |
1295 | ||
1296 | ff = crop->pad == FIMC_SD_PAD_SOURCE ? | |
1297 | &ctx->d_frame : &ctx->s_frame; | |
1298 | ||
1299 | mutex_lock(&fimc->lock); | |
1300 | fimc_capture_try_crop(ctx, r, crop->pad); | |
1301 | ||
1302 | if (crop->which == V4L2_SUBDEV_FORMAT_TRY) { | |
1303 | mutex_lock(&fimc->lock); | |
1304 | *v4l2_subdev_get_try_crop(fh, crop->pad) = *r; | |
1305 | return 0; | |
1306 | } | |
1307 | spin_lock_irqsave(&fimc->slock, flags); | |
1308 | set_frame_crop(ff, r->left, r->top, r->width, r->height); | |
1309 | if (crop->pad == FIMC_SD_PAD_SOURCE) | |
1310 | ctx->state |= FIMC_DST_CROP; | |
1311 | ||
1312 | set_bit(ST_CAPT_APPLY_CFG, &fimc->state); | |
1313 | spin_unlock_irqrestore(&fimc->slock, flags); | |
1314 | ||
1315 | dbg("pad%d: (%d,%d)/%dx%d", crop->pad, r->left, r->top, | |
1316 | r->width, r->height); | |
1317 | ||
1318 | mutex_unlock(&fimc->lock); | |
1319 | return 0; | |
1320 | } | |
1321 | ||
1322 | static struct v4l2_subdev_pad_ops fimc_subdev_pad_ops = { | |
1323 | .enum_mbus_code = fimc_subdev_enum_mbus_code, | |
1324 | .get_fmt = fimc_subdev_get_fmt, | |
1325 | .set_fmt = fimc_subdev_set_fmt, | |
1326 | .get_crop = fimc_subdev_get_crop, | |
1327 | .set_crop = fimc_subdev_set_crop, | |
1328 | }; | |
1329 | ||
1330 | static struct v4l2_subdev_ops fimc_subdev_ops = { | |
1331 | .pad = &fimc_subdev_pad_ops, | |
1332 | }; | |
1333 | ||
1334 | static int fimc_create_capture_subdev(struct fimc_dev *fimc, | |
1335 | struct v4l2_device *v4l2_dev) | |
1336 | { | |
1337 | struct v4l2_subdev *sd; | |
1338 | int ret; | |
1339 | ||
1340 | sd = kzalloc(sizeof(*sd), GFP_KERNEL); | |
1341 | if (!sd) | |
1342 | return -ENOMEM; | |
1343 | ||
1344 | v4l2_subdev_init(sd, &fimc_subdev_ops); | |
1345 | sd->flags = V4L2_SUBDEV_FL_HAS_DEVNODE; | |
1346 | snprintf(sd->name, sizeof(sd->name), "FIMC.%d", fimc->pdev->id); | |
1347 | ||
1348 | fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK; | |
1349 | fimc->vid_cap.sd_pads[FIMC_SD_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE; | |
1350 | ret = media_entity_init(&sd->entity, FIMC_SD_PADS_NUM, | |
1351 | fimc->vid_cap.sd_pads, 0); | |
1352 | if (ret) | |
1353 | goto me_err; | |
1354 | ret = v4l2_device_register_subdev(v4l2_dev, sd); | |
1355 | if (ret) | |
1356 | goto sd_err; | |
1357 | ||
1358 | fimc->vid_cap.subdev = sd; | |
1359 | v4l2_set_subdevdata(sd, fimc); | |
1360 | sd->entity.ops = &fimc_sd_media_ops; | |
1361 | return 0; | |
1362 | sd_err: | |
1363 | media_entity_cleanup(&sd->entity); | |
1364 | me_err: | |
1365 | kfree(sd); | |
1366 | return ret; | |
1367 | } | |
1368 | ||
1369 | static void fimc_destroy_capture_subdev(struct fimc_dev *fimc) | |
1370 | { | |
1371 | struct v4l2_subdev *sd = fimc->vid_cap.subdev; | |
1372 | ||
1373 | if (!sd) | |
1374 | return; | |
1375 | media_entity_cleanup(&sd->entity); | |
1376 | v4l2_device_unregister_subdev(sd); | |
1377 | kfree(sd); | |
64c570f5 | 1378 | fimc->vid_cap.subdev = NULL; |
237e0265 SN |
1379 | } |
1380 | ||
1381 | /* Set default format at the sensor and host interface */ | |
1382 | static int fimc_capture_set_default_format(struct fimc_dev *fimc) | |
1383 | { | |
1384 | struct v4l2_format fmt = { | |
1385 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE, | |
1386 | .fmt.pix_mp = { | |
1387 | .width = 640, | |
1388 | .height = 480, | |
1389 | .pixelformat = V4L2_PIX_FMT_YUYV, | |
1390 | .field = V4L2_FIELD_NONE, | |
1391 | .colorspace = V4L2_COLORSPACE_JPEG, | |
1392 | }, | |
1393 | }; | |
1394 | ||
1395 | return fimc_capture_set_format(fimc, &fmt); | |
1396 | } | |
1397 | ||
ef7af59b | 1398 | /* fimc->lock must be already initialized */ |
30c9939d SN |
1399 | int fimc_register_capture_device(struct fimc_dev *fimc, |
1400 | struct v4l2_device *v4l2_dev) | |
5f3cc447 | 1401 | { |
5f3cc447 SN |
1402 | struct video_device *vfd; |
1403 | struct fimc_vid_cap *vid_cap; | |
1404 | struct fimc_ctx *ctx; | |
2dab38e2 | 1405 | struct vb2_queue *q; |
30c9939d | 1406 | int ret = -ENOMEM; |
5f3cc447 SN |
1407 | |
1408 | ctx = kzalloc(sizeof *ctx, GFP_KERNEL); | |
1409 | if (!ctx) | |
1410 | return -ENOMEM; | |
1411 | ||
1412 | ctx->fimc_dev = fimc; | |
1413 | ctx->in_path = FIMC_CAMERA; | |
1414 | ctx->out_path = FIMC_DMA; | |
1415 | ctx->state = FIMC_CTX_CAP; | |
237e0265 SN |
1416 | ctx->s_frame.fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0); |
1417 | ctx->d_frame.fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0); | |
5f3cc447 | 1418 | |
5f3cc447 SN |
1419 | vfd = video_device_alloc(); |
1420 | if (!vfd) { | |
1421 | v4l2_err(v4l2_dev, "Failed to allocate video device\n"); | |
30c9939d | 1422 | goto err_vd_alloc; |
5f3cc447 SN |
1423 | } |
1424 | ||
30c9939d SN |
1425 | snprintf(vfd->name, sizeof(vfd->name), "%s.capture", |
1426 | dev_name(&fimc->pdev->dev)); | |
5f3cc447 SN |
1427 | |
1428 | vfd->fops = &fimc_capture_fops; | |
1429 | vfd->ioctl_ops = &fimc_capture_ioctl_ops; | |
574e1717 | 1430 | vfd->v4l2_dev = v4l2_dev; |
5f3cc447 SN |
1431 | vfd->minor = -1; |
1432 | vfd->release = video_device_release; | |
8293ebfc | 1433 | vfd->lock = &fimc->lock; |
5f3cc447 SN |
1434 | video_set_drvdata(vfd, fimc); |
1435 | ||
1436 | vid_cap = &fimc->vid_cap; | |
1437 | vid_cap->vfd = vfd; | |
1438 | vid_cap->active_buf_cnt = 0; | |
1439 | vid_cap->reqbufs_count = 0; | |
1440 | vid_cap->refcnt = 0; | |
5f3cc447 SN |
1441 | |
1442 | INIT_LIST_HEAD(&vid_cap->pending_buf_q); | |
1443 | INIT_LIST_HEAD(&vid_cap->active_buf_q); | |
1444 | spin_lock_init(&ctx->slock); | |
1445 | vid_cap->ctx = ctx; | |
1446 | ||
2dab38e2 SN |
1447 | q = &fimc->vid_cap.vbq; |
1448 | memset(q, 0, sizeof(*q)); | |
ef7af59b | 1449 | q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; |
2dab38e2 SN |
1450 | q->io_modes = VB2_MMAP | VB2_USERPTR; |
1451 | q->drv_priv = fimc->vid_cap.ctx; | |
1452 | q->ops = &fimc_capture_qops; | |
1453 | q->mem_ops = &vb2_dma_contig_memops; | |
1454 | q->buf_struct_size = sizeof(struct fimc_vid_buffer); | |
1455 | ||
1456 | vb2_queue_init(q); | |
5f3cc447 | 1457 | |
574e1717 SN |
1458 | fimc->vid_cap.vd_pad.flags = MEDIA_PAD_FL_SINK; |
1459 | ret = media_entity_init(&vfd->entity, 1, &fimc->vid_cap.vd_pad, 0); | |
1460 | if (ret) | |
1461 | goto err_ent; | |
237e0265 SN |
1462 | ret = fimc_create_capture_subdev(fimc, v4l2_dev); |
1463 | if (ret) | |
1464 | goto err_sd_reg; | |
574e1717 | 1465 | |
131b6c61 | 1466 | vfd->ctrl_handler = &ctx->ctrl_handler; |
5f3cc447 SN |
1467 | return 0; |
1468 | ||
237e0265 SN |
1469 | err_sd_reg: |
1470 | media_entity_cleanup(&vfd->entity); | |
574e1717 | 1471 | err_ent: |
5f3cc447 | 1472 | video_device_release(vfd); |
30c9939d | 1473 | err_vd_alloc: |
cfd77310 | 1474 | kfree(ctx); |
5f3cc447 SN |
1475 | return ret; |
1476 | } | |
1477 | ||
1478 | void fimc_unregister_capture_device(struct fimc_dev *fimc) | |
1479 | { | |
574e1717 | 1480 | struct video_device *vfd = fimc->vid_cap.vfd; |
5f3cc447 | 1481 | |
574e1717 SN |
1482 | if (vfd) { |
1483 | media_entity_cleanup(&vfd->entity); | |
96a85742 SN |
1484 | /* Can also be called if video device was |
1485 | not registered */ | |
574e1717 SN |
1486 | video_unregister_device(vfd); |
1487 | } | |
237e0265 | 1488 | fimc_destroy_capture_subdev(fimc); |
574e1717 | 1489 | kfree(fimc->vid_cap.ctx); |
96a85742 | 1490 | fimc->vid_cap.ctx = NULL; |
5f3cc447 | 1491 | } |