2 * Samsung S5P/EXYNOS4 SoC series camera interface (camera capture) driver
4 * Copyright (C) 2010 - 2011 Samsung Electronics Co., Ltd.
5 * Author: Sylwester Nawrocki, <s.nawrocki@samsung.com>
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.
12 #include <linux/module.h>
13 #include <linux/kernel.h>
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>
19 #include <linux/pm_runtime.h>
20 #include <linux/list.h>
21 #include <linux/slab.h>
23 #include <linux/videodev2.h>
24 #include <media/v4l2-device.h>
25 #include <media/v4l2-ioctl.h>
26 #include <media/v4l2-mem2mem.h>
27 #include <media/videobuf2-core.h>
28 #include <media/videobuf2-dma-contig.h>
30 #include "fimc-mdevice.h"
31 #include "fimc-core.h"
33 static int fimc_init_capture(struct fimc_dev *fimc)
35 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
36 struct fimc_sensor_info *sensor;
40 if (fimc->pipeline.sensor == NULL || ctx == NULL)
42 if (ctx->s_frame.fmt == NULL)
45 sensor = v4l2_get_subdev_hostdata(fimc->pipeline.sensor);
47 spin_lock_irqsave(&fimc->slock, flags);
48 fimc_prepare_dma_offset(ctx, &ctx->d_frame);
49 fimc_set_yuv_order(ctx);
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);
56 ret = fimc_set_scaler_info(ctx);
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);
63 fimc_hw_set_effect(ctx, false);
64 fimc_hw_set_output_path(ctx);
65 fimc_hw_set_out_dma(ctx);
66 clear_bit(ST_CAPT_APPLY_CFG, &fimc->state);
68 spin_unlock_irqrestore(&fimc->slock, flags);
72 static int fimc_capture_state_cleanup(struct fimc_dev *fimc, bool suspend)
74 struct fimc_vid_cap *cap = &fimc->vid_cap;
75 struct fimc_vid_buffer *buf;
79 spin_lock_irqsave(&fimc->slock, flags);
80 streaming = fimc->state & (1 << ST_CAPT_ISP_STREAM);
82 fimc->state &= ~(1 << ST_CAPT_RUN | 1 << ST_CAPT_SHUT |
83 1 << ST_CAPT_STREAM | 1 << ST_CAPT_ISP_STREAM);
85 fimc->state &= ~(1 << ST_CAPT_PEND | 1 << ST_CAPT_SUSPENDED);
87 /* Release unused buffers */
88 while (!suspend && !list_empty(&cap->pending_buf_q)) {
89 buf = fimc_pending_queue_pop(cap);
90 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
92 /* If suspending put unused buffers onto pending queue */
93 while (!list_empty(&cap->active_buf_q)) {
94 buf = fimc_active_queue_pop(cap);
96 fimc_pending_queue_add(cap, buf);
98 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
100 set_bit(ST_CAPT_SUSPENDED, &fimc->state);
101 spin_unlock_irqrestore(&fimc->slock, flags);
104 return fimc_pipeline_s_stream(fimc, 0);
109 static int fimc_stop_capture(struct fimc_dev *fimc, bool suspend)
113 if (!fimc_capture_active(fimc))
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);
121 wait_event_timeout(fimc->irq_queue,
122 !test_bit(ST_CAPT_SHUT, &fimc->state),
123 (2*HZ/10)); /* 200 ms */
125 return fimc_capture_state_cleanup(fimc, suspend);
129 * fimc_capture_config_update - apply the camera interface configuration
131 * To be called from within the interrupt handler with fimc.slock
132 * spinlock held. It updates the camera pixel crop, rotation and
135 int fimc_capture_config_update(struct fimc_ctx *ctx)
137 struct fimc_dev *fimc = ctx->fimc_dev;
140 if (test_bit(ST_CAPT_APPLY_CFG, &fimc->state))
143 spin_lock(&ctx->slock);
144 fimc_hw_set_camera_offset(fimc, &ctx->s_frame);
145 ret = fimc_set_scaler_info(ctx);
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);
155 spin_unlock(&ctx->slock);
159 static int start_streaming(struct vb2_queue *q, unsigned int count)
161 struct fimc_ctx *ctx = q->drv_priv;
162 struct fimc_dev *fimc = ctx->fimc_dev;
163 struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
168 vid_cap->frame_count = 0;
170 ret = fimc_init_capture(fimc);
174 set_bit(ST_CAPT_PEND, &fimc->state);
176 min_bufs = fimc->vid_cap.reqbufs_count > 1 ? 2 : 1;
178 if (vid_cap->active_buf_cnt >= min_bufs &&
179 !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) {
180 fimc_activate_capture(ctx);
182 if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
183 fimc_pipeline_s_stream(fimc, 1);
188 fimc_capture_state_cleanup(fimc, false);
192 static int stop_streaming(struct vb2_queue *q)
194 struct fimc_ctx *ctx = q->drv_priv;
195 struct fimc_dev *fimc = ctx->fimc_dev;
197 if (!fimc_capture_active(fimc))
200 return fimc_stop_capture(fimc, false);
203 int fimc_capture_suspend(struct fimc_dev *fimc)
205 bool suspend = fimc_capture_busy(fimc);
207 int ret = fimc_stop_capture(fimc, suspend);
210 return fimc_pipeline_shutdown(fimc);
213 static void buffer_queue(struct vb2_buffer *vb);
215 int fimc_capture_resume(struct fimc_dev *fimc)
217 struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
218 struct fimc_vid_buffer *buf;
221 if (!test_and_clear_bit(ST_CAPT_SUSPENDED, &fimc->state))
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,
228 fimc_init_capture(fimc);
230 clear_bit(ST_CAPT_SUSPENDED, &fimc->state);
232 for (i = 0; i < vid_cap->reqbufs_count; i++) {
233 if (list_empty(&vid_cap->pending_buf_q))
235 buf = fimc_pending_queue_pop(vid_cap);
236 buffer_queue(&buf->vb);
242 static unsigned int get_plane_size(struct fimc_frame *fr, unsigned int plane)
244 if (!fr || plane >= fr->fmt->memplanes)
246 return fr->f_width * fr->f_height * fr->fmt->depth[plane] / 8;
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[])
253 struct fimc_ctx *ctx = vq->drv_priv;
254 struct fimc_fmt *fmt = ctx->d_frame.fmt;
260 *num_planes = fmt->memplanes;
262 for (i = 0; i < fmt->memplanes; i++) {
263 sizes[i] = get_plane_size(&ctx->d_frame, i);
264 allocators[i] = ctx->fimc_dev->alloc_ctx;
270 static int buffer_prepare(struct vb2_buffer *vb)
272 struct vb2_queue *vq = vb->vb2_queue;
273 struct fimc_ctx *ctx = vq->drv_priv;
276 if (ctx->d_frame.fmt == NULL)
279 for (i = 0; i < ctx->d_frame.fmt->memplanes; i++) {
280 unsigned long size = ctx->d_frame.payload[i];
282 if (vb2_plane_size(vb, i) < size) {
283 v4l2_err(ctx->fimc_dev->vid_cap.vfd,
284 "User buffer too small (%ld < %ld)\n",
285 vb2_plane_size(vb, i), size);
288 vb2_set_plane_payload(vb, i, size);
294 static void buffer_queue(struct vb2_buffer *vb)
296 struct fimc_vid_buffer *buf
297 = container_of(vb, struct fimc_vid_buffer, vb);
298 struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
299 struct fimc_dev *fimc = ctx->fimc_dev;
300 struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
304 spin_lock_irqsave(&fimc->slock, flags);
305 fimc_prepare_addr(ctx, &buf->vb, &ctx->d_frame, &buf->paddr);
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) {
310 /* Setup the buffer directly for processing. */
311 int buf_id = (vid_cap->reqbufs_count == 1) ? -1 :
314 fimc_hw_set_output_addr(fimc, &buf->paddr, buf_id);
315 buf->index = vid_cap->buf_index;
316 fimc_active_queue_add(vid_cap, buf);
318 if (++vid_cap->buf_index >= FIMC_MAX_OUT_BUFS)
319 vid_cap->buf_index = 0;
321 fimc_pending_queue_add(vid_cap, buf);
324 min_bufs = vid_cap->reqbufs_count > 1 ? 2 : 1;
327 if (vb2_is_streaming(&vid_cap->vbq) &&
328 vid_cap->active_buf_cnt >= min_bufs &&
329 !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) {
330 fimc_activate_capture(ctx);
331 spin_unlock_irqrestore(&fimc->slock, flags);
333 if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
334 fimc_pipeline_s_stream(fimc, 1);
337 spin_unlock_irqrestore(&fimc->slock, flags);
340 static void fimc_lock(struct vb2_queue *vq)
342 struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
343 mutex_lock(&ctx->fimc_dev->lock);
346 static void fimc_unlock(struct vb2_queue *vq)
348 struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
349 mutex_unlock(&ctx->fimc_dev->lock);
352 static struct vb2_ops fimc_capture_qops = {
353 .queue_setup = queue_setup,
354 .buf_prepare = buffer_prepare,
355 .buf_queue = buffer_queue,
356 .wait_prepare = fimc_unlock,
357 .wait_finish = fimc_lock,
358 .start_streaming = start_streaming,
359 .stop_streaming = stop_streaming,
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.
369 int fimc_capture_ctrls_create(struct fimc_dev *fimc)
371 struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
374 if (WARN_ON(vid_cap->ctx == NULL))
376 if (vid_cap->ctx->ctrls_rdy)
379 ret = fimc_ctrls_create(vid_cap->ctx);
380 if (ret || vid_cap->user_subdev_api)
383 return v4l2_ctrl_add_handler(&vid_cap->ctx->ctrl_handler,
384 fimc->pipeline.sensor->ctrl_handler);
387 static int fimc_capture_set_default_format(struct fimc_dev *fimc);
389 static int fimc_capture_open(struct file *file)
391 struct fimc_dev *fimc = video_drvdata(file);
392 int ret = v4l2_fh_open(file);
397 dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
399 /* Return if the corresponding video mem2mem node is already opened. */
400 if (fimc_m2m_active(fimc))
403 set_bit(ST_CAPT_BUSY, &fimc->state);
404 pm_runtime_get_sync(&fimc->pdev->dev);
406 if (++fimc->vid_cap.refcnt == 1) {
407 ret = fimc_pipeline_initialize(fimc,
408 &fimc->vid_cap.vfd->entity, true);
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);
415 clear_bit(ST_CAPT_BUSY, &fimc->state);
418 ret = fimc_capture_ctrls_create(fimc);
420 if (!ret && !fimc->vid_cap.user_subdev_api)
421 ret = fimc_capture_set_default_format(fimc);
426 static int fimc_capture_close(struct file *file)
428 struct fimc_dev *fimc = video_drvdata(file);
430 dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
432 if (--fimc->vid_cap.refcnt == 0) {
433 clear_bit(ST_CAPT_BUSY, &fimc->state);
434 fimc_stop_capture(fimc, false);
435 fimc_pipeline_shutdown(fimc);
436 clear_bit(ST_CAPT_SUSPENDED, &fimc->state);
439 pm_runtime_put(&fimc->pdev->dev);
441 if (fimc->vid_cap.refcnt == 0) {
442 vb2_queue_release(&fimc->vid_cap.vbq);
443 fimc_ctrls_delete(fimc->vid_cap.ctx);
445 return v4l2_fh_release(file);
448 static unsigned int fimc_capture_poll(struct file *file,
449 struct poll_table_struct *wait)
451 struct fimc_dev *fimc = video_drvdata(file);
453 return vb2_poll(&fimc->vid_cap.vbq, file, wait);
456 static int fimc_capture_mmap(struct file *file, struct vm_area_struct *vma)
458 struct fimc_dev *fimc = video_drvdata(file);
460 return vb2_mmap(&fimc->vid_cap.vbq, vma);
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,
473 * Format and crop negotiation helpers
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)
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;
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;
494 if (fourcc && *fourcc != V4L2_PIX_FMT_JPEG && pad != FIMC_SD_PAD_SINK)
495 mask |= FMT_FLAGS_M2M;
497 ffmt = fimc_find_format(fourcc, code, mask, 0);
501 *code = ffmt->mbus_code;
503 *fourcc = ffmt->fourcc;
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,
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;
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;
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,
534 64/(ALIGN(depth, 8)));
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);
543 static void fimc_capture_try_crop(struct fimc_ctx *ctx, struct v4l2_rect *r,
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;
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;
562 if (pad == FIMC_SD_PAD_SOURCE) {
563 if (ctx->rotation != 90 && ctx->rotation != 270)
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;
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;
576 * For the crop rectangle at source pad the following constraints
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().
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);
593 swap(max_sc_h, max_sc_v);
597 v4l_bound_align_image(&r->width, min_w, max_w, ffs(min_sz) - 1,
598 &r->height, min_h, max_h, align_h,
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);
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);
611 * The video node ioctl operations
613 static int fimc_vidioc_querycap_capture(struct file *file, void *priv,
614 struct v4l2_capability *cap)
616 struct fimc_dev *fimc = video_drvdata(file);
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;
621 cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE_MPLANE;
626 static int fimc_cap_enum_fmt_mplane(struct file *file, void *priv,
627 struct v4l2_fmtdesc *f)
629 struct fimc_fmt *fmt;
631 fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM | FMT_FLAGS_M2M,
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;
643 * fimc_pipeline_try_format - negotiate and/or set formats at pipeline
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
650 static int fimc_pipeline_try_format(struct fimc_ctx *ctx,
651 struct v4l2_mbus_framefmt *tfmt,
652 struct fimc_fmt **fmt_id,
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;
663 if (WARN_ON(!sd || !tfmt))
666 memset(&sfmt, 0, sizeof(sfmt));
669 sfmt.which = set ? V4L2_SUBDEV_FORMAT_ACTIVE : V4L2_SUBDEV_FORMAT_TRY;
671 ffmt = fimc_find_format(NULL, mf->code != 0 ? &mf->code : NULL,
675 * Notify user-space if common pixel code for
676 * host and sensor does not exist.
680 mf->code = tfmt->code = ffmt->mbus_code;
682 ret = v4l2_subdev_call(sd, pad, set_fmt, NULL, &sfmt);
685 if (mf->code != tfmt->code) {
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)
700 tfmt->code = mf->code;
703 ret = v4l2_subdev_call(csis, pad, set_fmt, NULL, &sfmt);
705 if (mf->code == tfmt->code &&
706 mf->width == tfmt->width && mf->width == tfmt->width)
714 dbg("code: 0x%x, %dx%d, %p", mf->code, mf->width, mf->height, ffmt);
718 static int fimc_cap_g_fmt_mplane(struct file *file, void *fh,
719 struct v4l2_format *f)
721 struct fimc_dev *fimc = video_drvdata(file);
722 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
724 if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
727 return fimc_fill_format(&ctx->d_frame, f);
730 static int fimc_cap_try_fmt_mplane(struct file *file, void *fh,
731 struct v4l2_format *f)
733 struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
734 struct fimc_dev *fimc = video_drvdata(file);
735 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
736 struct v4l2_mbus_framefmt mf;
737 struct fimc_fmt *ffmt = NULL;
739 if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
742 if (pix->pixelformat == V4L2_PIX_FMT_JPEG) {
743 fimc_capture_try_format(ctx, &pix->width, &pix->height,
744 NULL, &pix->pixelformat,
746 ctx->s_frame.f_width = pix->width;
747 ctx->s_frame.f_height = pix->height;
749 ffmt = fimc_capture_try_format(ctx, &pix->width, &pix->height,
750 NULL, &pix->pixelformat,
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);
763 pix->width = mf.width;
764 pix->height = mf.height;
766 pix->pixelformat = ffmt->fourcc;
769 fimc_adjust_mplane_format(ffmt, pix->width, pix->height, pix);
773 static void fimc_capture_mark_jpeg_xfer(struct fimc_ctx *ctx, bool jpeg)
775 ctx->scaler.enabled = !jpeg;
776 fimc_ctrls_activate(ctx, !jpeg);
779 set_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state);
781 clear_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state);
784 static int fimc_capture_set_format(struct fimc_dev *fimc, struct v4l2_format *f)
786 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
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;
793 if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
795 if (vb2_is_busy(&fimc->vid_cap.vbq))
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,
803 ctx->s_frame.f_width = pix->width;
804 ctx->s_frame.f_height = pix->height;
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,
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;
818 fimc_md_graph_lock(fimc);
819 ret = fimc_pipeline_try_format(ctx, mf, &s_fmt, true);
820 fimc_md_graph_unlock(fimc);
823 pix->width = mf->width;
824 pix->height = mf->height;
826 fimc_adjust_mplane_format(ff->fmt, pix->width, pix->height, pix);
827 for (i = 0; i < ff->fmt->colplanes; i++)
829 (pix->width * pix->height * ff->fmt->depth[i]) / 8;
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);
836 fimc_capture_mark_jpeg_xfer(ctx, fimc_fmt_is_jpeg(ff->fmt->color));
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);
848 static int fimc_cap_s_fmt_mplane(struct file *file, void *priv,
849 struct v4l2_format *f)
851 struct fimc_dev *fimc = video_drvdata(file);
853 return fimc_capture_set_format(fimc, f);
856 static int fimc_cap_enum_input(struct file *file, void *priv,
857 struct v4l2_input *i)
859 struct fimc_dev *fimc = video_drvdata(file);
860 struct v4l2_subdev *sd = fimc->pipeline.sensor;
865 i->type = V4L2_INPUT_TYPE_CAMERA;
867 strlcpy(i->name, sd->name, sizeof(i->name));
871 static int fimc_cap_s_input(struct file *file, void *priv, unsigned int i)
873 return i == 0 ? i : -EINVAL;
876 static int fimc_cap_g_input(struct file *file, void *priv, unsigned int *i)
883 * fimc_pipeline_validate - check for formats inconsistencies
884 * between source and sink pad of each link
886 * Return 0 if all formats match or -EPIPE otherwise.
888 static int fimc_pipeline_validate(struct fimc_dev *fimc)
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;
896 /* Start with the video capture node pad */
897 pad = media_entity_remote_source(&vid_cap->vd_pad);
900 /* FIMC.{N} subdevice */
901 sd = media_entity_to_v4l2_subdev(pad->entity);
904 /* Retrieve format at the sink pad */
905 pad = &sd->entity.pads[0];
906 if (!(pad->flags & MEDIA_PAD_FL_SINK))
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;
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)
921 /* Retrieve format at the source pad */
922 pad = media_entity_remote_source(pad);
924 media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
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)
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)
942 static int fimc_cap_streamon(struct file *file, void *priv,
943 enum v4l2_buf_type type)
945 struct fimc_dev *fimc = video_drvdata(file);
946 struct fimc_pipeline *p = &fimc->pipeline;
949 if (fimc_capture_active(fimc))
952 media_entity_pipeline_start(&p->sensor->entity, p->pipe);
954 if (fimc->vid_cap.user_subdev_api) {
955 ret = fimc_pipeline_validate(fimc);
959 return vb2_streamon(&fimc->vid_cap.vbq, type);
962 static int fimc_cap_streamoff(struct file *file, void *priv,
963 enum v4l2_buf_type type)
965 struct fimc_dev *fimc = video_drvdata(file);
966 struct v4l2_subdev *sd = fimc->pipeline.sensor;
969 ret = vb2_streamoff(&fimc->vid_cap.vbq, type);
971 media_entity_pipeline_stop(&sd->entity);
975 static int fimc_cap_reqbufs(struct file *file, void *priv,
976 struct v4l2_requestbuffers *reqbufs)
978 struct fimc_dev *fimc = video_drvdata(file);
979 int ret = vb2_reqbufs(&fimc->vid_cap.vbq, reqbufs);
982 fimc->vid_cap.reqbufs_count = reqbufs->count;
986 static int fimc_cap_querybuf(struct file *file, void *priv,
987 struct v4l2_buffer *buf)
989 struct fimc_dev *fimc = video_drvdata(file);
991 return vb2_querybuf(&fimc->vid_cap.vbq, buf);
994 static int fimc_cap_qbuf(struct file *file, void *priv,
995 struct v4l2_buffer *buf)
997 struct fimc_dev *fimc = video_drvdata(file);
999 return vb2_qbuf(&fimc->vid_cap.vbq, buf);
1002 static int fimc_cap_dqbuf(struct file *file, void *priv,
1003 struct v4l2_buffer *buf)
1005 struct fimc_dev *fimc = video_drvdata(file);
1007 return vb2_dqbuf(&fimc->vid_cap.vbq, buf, file->f_flags & O_NONBLOCK);
1010 static int fimc_cap_cropcap(struct file *file, void *fh,
1011 struct v4l2_cropcap *cr)
1013 struct fimc_dev *fimc = video_drvdata(file);
1014 struct fimc_frame *f = &fimc->vid_cap.ctx->s_frame;
1016 if (cr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1019 cr->bounds.left = 0;
1021 cr->bounds.width = f->o_width;
1022 cr->bounds.height = f->o_height;
1023 cr->defrect = cr->bounds;
1028 static int fimc_cap_g_crop(struct file *file, void *fh, struct v4l2_crop *cr)
1030 struct fimc_dev *fimc = video_drvdata(file);
1031 struct fimc_frame *f = &fimc->vid_cap.ctx->s_frame;
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;
1041 static int fimc_cap_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
1043 struct fimc_dev *fimc = video_drvdata(file);
1044 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1045 struct fimc_frame *ff;
1046 unsigned long flags;
1048 fimc_capture_try_crop(ctx, &cr->c, FIMC_SD_PAD_SINK);
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);
1059 static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops = {
1060 .vidioc_querycap = fimc_vidioc_querycap_capture,
1062 .vidioc_enum_fmt_vid_cap_mplane = fimc_cap_enum_fmt_mplane,
1063 .vidioc_try_fmt_vid_cap_mplane = fimc_cap_try_fmt_mplane,
1064 .vidioc_s_fmt_vid_cap_mplane = fimc_cap_s_fmt_mplane,
1065 .vidioc_g_fmt_vid_cap_mplane = fimc_cap_g_fmt_mplane,
1067 .vidioc_reqbufs = fimc_cap_reqbufs,
1068 .vidioc_querybuf = fimc_cap_querybuf,
1070 .vidioc_qbuf = fimc_cap_qbuf,
1071 .vidioc_dqbuf = fimc_cap_dqbuf,
1073 .vidioc_streamon = fimc_cap_streamon,
1074 .vidioc_streamoff = fimc_cap_streamoff,
1076 .vidioc_g_crop = fimc_cap_g_crop,
1077 .vidioc_s_crop = fimc_cap_s_crop,
1078 .vidioc_cropcap = fimc_cap_cropcap,
1080 .vidioc_enum_input = fimc_cap_enum_input,
1081 .vidioc_s_input = fimc_cap_s_input,
1082 .vidioc_g_input = fimc_cap_g_input,
1085 /* Capture subdev media entity operations */
1086 static int fimc_link_setup(struct media_entity *entity,
1087 const struct media_pad *local,
1088 const struct media_pad *remote, u32 flags)
1090 struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
1091 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1093 if (media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
1096 if (WARN_ON(fimc == NULL))
1099 dbg("%s --> %s, flags: 0x%x. input: 0x%x",
1100 local->entity->name, remote->entity->name, flags,
1101 fimc->vid_cap.input);
1103 if (flags & MEDIA_LNK_FL_ENABLED) {
1104 if (fimc->vid_cap.input != 0)
1106 fimc->vid_cap.input = sd->grp_id;
1110 fimc->vid_cap.input = 0;
1114 static const struct media_entity_operations fimc_sd_media_ops = {
1115 .link_setup = fimc_link_setup,
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
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.
1131 void fimc_sensor_notify(struct v4l2_subdev *sd, unsigned int notification,
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;
1143 sensor = v4l2_get_subdev_hostdata(sd);
1144 fmd = entity_to_fimc_mdev(&sd->entity);
1146 spin_lock_irqsave(&fmd->slock, flags);
1147 fimc = sensor ? sensor->host : NULL;
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));
1158 fimc_capture_irq_handler(fimc, true);
1159 fimc_deactivate_capture(fimc);
1160 spin_unlock_irqrestore(&fimc->slock, irq_flags);
1162 spin_unlock_irqrestore(&fmd->slock, flags);
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)
1169 struct fimc_fmt *fmt;
1171 fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, code->index);
1174 code->code = fmt->mbus_code;
1178 static int fimc_subdev_get_fmt(struct v4l2_subdev *sd,
1179 struct v4l2_subdev_fh *fh,
1180 struct v4l2_subdev_format *fmt)
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;
1187 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
1188 mf = v4l2_subdev_get_try_format(fh, fmt->pad);
1193 mf->colorspace = V4L2_COLORSPACE_JPEG;
1194 ff = fmt->pad == FIMC_SD_PAD_SINK ? &ctx->s_frame : &ctx->d_frame;
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);
1207 static int fimc_subdev_set_fmt(struct v4l2_subdev *sd,
1208 struct v4l2_subdev_fh *fh,
1209 struct v4l2_subdev_format *fmt)
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;
1217 dbg("pad%d: code: 0x%x, %dx%d",
1218 fmt->pad, mf->code, mf->width, mf->height);
1220 if (fmt->pad == FIMC_SD_PAD_SOURCE &&
1221 vb2_is_busy(&fimc->vid_cap.vbq))
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;
1230 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
1231 mf = v4l2_subdev_get_try_format(fh, fmt->pad);
1235 fimc_capture_mark_jpeg_xfer(ctx, fimc_fmt_is_jpeg(ffmt->color));
1237 ff = fmt->pad == FIMC_SD_PAD_SINK ?
1238 &ctx->s_frame : &ctx->d_frame;
1240 mutex_lock(&fimc->lock);
1241 set_frame_bounds(ff, mf->width, mf->height);
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);
1248 if (fmt->pad == FIMC_SD_PAD_SINK)
1249 ctx->state &= ~FIMC_DST_CROP;
1250 mutex_unlock(&fimc->lock);
1254 static int fimc_subdev_get_crop(struct v4l2_subdev *sd,
1255 struct v4l2_subdev_fh *fh,
1256 struct v4l2_subdev_crop *crop)
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;
1263 if (crop->which == V4L2_SUBDEV_FORMAT_TRY) {
1264 crop->rect = *v4l2_subdev_get_try_crop(fh, crop->pad);
1267 ff = crop->pad == FIMC_SD_PAD_SINK ?
1268 &ctx->s_frame : &ctx->d_frame;
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);
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);
1284 static int fimc_subdev_set_crop(struct v4l2_subdev *sd,
1285 struct v4l2_subdev_fh *fh,
1286 struct v4l2_subdev_crop *crop)
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;
1294 dbg("(%d,%d)/%dx%d", r->left, r->top, r->width, r->height);
1296 ff = crop->pad == FIMC_SD_PAD_SOURCE ?
1297 &ctx->d_frame : &ctx->s_frame;
1299 mutex_lock(&fimc->lock);
1300 fimc_capture_try_crop(ctx, r, crop->pad);
1302 if (crop->which == V4L2_SUBDEV_FORMAT_TRY) {
1303 mutex_lock(&fimc->lock);
1304 *v4l2_subdev_get_try_crop(fh, crop->pad) = *r;
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;
1312 set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
1313 spin_unlock_irqrestore(&fimc->slock, flags);
1315 dbg("pad%d: (%d,%d)/%dx%d", crop->pad, r->left, r->top,
1316 r->width, r->height);
1318 mutex_unlock(&fimc->lock);
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,
1330 static struct v4l2_subdev_ops fimc_subdev_ops = {
1331 .pad = &fimc_subdev_pad_ops,
1334 static int fimc_create_capture_subdev(struct fimc_dev *fimc,
1335 struct v4l2_device *v4l2_dev)
1337 struct v4l2_subdev *sd;
1340 sd = kzalloc(sizeof(*sd), GFP_KERNEL);
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);
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);
1354 ret = v4l2_device_register_subdev(v4l2_dev, sd);
1358 fimc->vid_cap.subdev = sd;
1359 v4l2_set_subdevdata(sd, fimc);
1360 sd->entity.ops = &fimc_sd_media_ops;
1363 media_entity_cleanup(&sd->entity);
1369 static void fimc_destroy_capture_subdev(struct fimc_dev *fimc)
1371 struct v4l2_subdev *sd = fimc->vid_cap.subdev;
1375 media_entity_cleanup(&sd->entity);
1376 v4l2_device_unregister_subdev(sd);
1381 /* Set default format at the sensor and host interface */
1382 static int fimc_capture_set_default_format(struct fimc_dev *fimc)
1384 struct v4l2_format fmt = {
1385 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
1389 .pixelformat = V4L2_PIX_FMT_YUYV,
1390 .field = V4L2_FIELD_NONE,
1391 .colorspace = V4L2_COLORSPACE_JPEG,
1395 return fimc_capture_set_format(fimc, &fmt);
1398 /* fimc->lock must be already initialized */
1399 int fimc_register_capture_device(struct fimc_dev *fimc,
1400 struct v4l2_device *v4l2_dev)
1402 struct video_device *vfd;
1403 struct fimc_vid_cap *vid_cap;
1404 struct fimc_ctx *ctx;
1405 struct vb2_queue *q;
1408 ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
1412 ctx->fimc_dev = fimc;
1413 ctx->in_path = FIMC_CAMERA;
1414 ctx->out_path = FIMC_DMA;
1415 ctx->state = FIMC_CTX_CAP;
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);
1419 vfd = video_device_alloc();
1421 v4l2_err(v4l2_dev, "Failed to allocate video device\n");
1425 snprintf(vfd->name, sizeof(vfd->name), "%s.capture",
1426 dev_name(&fimc->pdev->dev));
1428 vfd->fops = &fimc_capture_fops;
1429 vfd->ioctl_ops = &fimc_capture_ioctl_ops;
1430 vfd->v4l2_dev = v4l2_dev;
1432 vfd->release = video_device_release;
1433 vfd->lock = &fimc->lock;
1434 video_set_drvdata(vfd, fimc);
1436 vid_cap = &fimc->vid_cap;
1438 vid_cap->active_buf_cnt = 0;
1439 vid_cap->reqbufs_count = 0;
1440 vid_cap->refcnt = 0;
1442 INIT_LIST_HEAD(&vid_cap->pending_buf_q);
1443 INIT_LIST_HEAD(&vid_cap->active_buf_q);
1444 spin_lock_init(&ctx->slock);
1447 q = &fimc->vid_cap.vbq;
1448 memset(q, 0, sizeof(*q));
1449 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
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);
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);
1462 ret = fimc_create_capture_subdev(fimc, v4l2_dev);
1466 vfd->ctrl_handler = &ctx->ctrl_handler;
1470 media_entity_cleanup(&vfd->entity);
1472 video_device_release(vfd);
1478 void fimc_unregister_capture_device(struct fimc_dev *fimc)
1480 struct video_device *vfd = fimc->vid_cap.vfd;
1483 media_entity_cleanup(&vfd->entity);
1484 /* Can also be called if video device was
1486 video_unregister_device(vfd);
1488 fimc_destroy_capture_subdev(fimc);
1489 kfree(fimc->vid_cap.ctx);
1490 fimc->vid_cap.ctx = NULL;