2 * Samsung S5P/EXYNOS4 SoC series camera interface (camera capture) driver
4 * Copyright (C) 2010 - 2012 Samsung Electronics Co., Ltd.
5 * 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>
31 #include "fimc-core.h"
33 #include "media-dev.h"
35 static int fimc_capture_hw_init(struct fimc_dev *fimc)
37 struct fimc_source_info *si = &fimc->vid_cap.source_config;
38 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
42 if (ctx == NULL || ctx->s_frame.fmt == NULL)
45 if (si->fimc_bus_type == FIMC_BUS_TYPE_ISP_WRITEBACK) {
46 ret = fimc_hw_camblk_cfg_writeback(fimc);
51 spin_lock_irqsave(&fimc->slock, flags);
52 fimc_prepare_dma_offset(ctx, &ctx->d_frame);
53 fimc_set_yuv_order(ctx);
55 fimc_hw_set_camera_polarity(fimc, si);
56 fimc_hw_set_camera_type(fimc, si);
57 fimc_hw_set_camera_source(fimc, si);
58 fimc_hw_set_camera_offset(fimc, &ctx->s_frame);
60 ret = fimc_set_scaler_info(ctx);
62 fimc_hw_set_input_path(ctx);
63 fimc_hw_set_prescaler(ctx);
64 fimc_hw_set_mainscaler(ctx);
65 fimc_hw_set_target_format(ctx);
66 fimc_hw_set_rotation(ctx);
67 fimc_hw_set_effect(ctx);
68 fimc_hw_set_output_path(ctx);
69 fimc_hw_set_out_dma(ctx);
70 if (fimc->drv_data->alpha_color)
71 fimc_hw_set_rgb_alpha(ctx);
72 clear_bit(ST_CAPT_APPLY_CFG, &fimc->state);
74 spin_unlock_irqrestore(&fimc->slock, flags);
79 * Reinitialize the driver so it is ready to start the streaming again.
80 * Set fimc->state to indicate stream off and the hardware shut down state.
81 * If not suspending (@suspend is false), return any buffers to videobuf2.
82 * Otherwise put any owned buffers onto the pending buffers queue, so they
83 * can be re-spun when the device is being resumed. Also perform FIMC
84 * software reset and disable streaming on the whole pipeline if required.
86 static int fimc_capture_state_cleanup(struct fimc_dev *fimc, bool suspend)
88 struct fimc_vid_cap *cap = &fimc->vid_cap;
89 struct fimc_vid_buffer *buf;
93 spin_lock_irqsave(&fimc->slock, flags);
94 streaming = fimc->state & (1 << ST_CAPT_ISP_STREAM);
96 fimc->state &= ~(1 << ST_CAPT_RUN | 1 << ST_CAPT_SHUT |
97 1 << ST_CAPT_STREAM | 1 << ST_CAPT_ISP_STREAM);
99 fimc->state |= (1 << ST_CAPT_SUSPENDED);
101 fimc->state &= ~(1 << ST_CAPT_PEND | 1 << ST_CAPT_SUSPENDED);
103 /* Release unused buffers */
104 while (!suspend && !list_empty(&cap->pending_buf_q)) {
105 buf = fimc_pending_queue_pop(cap);
106 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
108 /* If suspending put unused buffers onto pending queue */
109 while (!list_empty(&cap->active_buf_q)) {
110 buf = fimc_active_queue_pop(cap);
112 fimc_pending_queue_add(cap, buf);
114 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
120 spin_unlock_irqrestore(&fimc->slock, flags);
123 return fimc_pipeline_call(&cap->ve, set_stream, 0);
128 static int fimc_stop_capture(struct fimc_dev *fimc, bool suspend)
132 if (!fimc_capture_active(fimc))
135 spin_lock_irqsave(&fimc->slock, flags);
136 set_bit(ST_CAPT_SHUT, &fimc->state);
137 fimc_deactivate_capture(fimc);
138 spin_unlock_irqrestore(&fimc->slock, flags);
140 wait_event_timeout(fimc->irq_queue,
141 !test_bit(ST_CAPT_SHUT, &fimc->state),
142 (2*HZ/10)); /* 200 ms */
144 return fimc_capture_state_cleanup(fimc, suspend);
148 * fimc_capture_config_update - apply the camera interface configuration
150 * To be called from within the interrupt handler with fimc.slock
151 * spinlock held. It updates the camera pixel crop, rotation and
154 static int fimc_capture_config_update(struct fimc_ctx *ctx)
156 struct fimc_dev *fimc = ctx->fimc_dev;
159 fimc_hw_set_camera_offset(fimc, &ctx->s_frame);
161 ret = fimc_set_scaler_info(ctx);
165 fimc_hw_set_prescaler(ctx);
166 fimc_hw_set_mainscaler(ctx);
167 fimc_hw_set_target_format(ctx);
168 fimc_hw_set_rotation(ctx);
169 fimc_hw_set_effect(ctx);
170 fimc_prepare_dma_offset(ctx, &ctx->d_frame);
171 fimc_hw_set_out_dma(ctx);
172 if (fimc->drv_data->alpha_color)
173 fimc_hw_set_rgb_alpha(ctx);
175 clear_bit(ST_CAPT_APPLY_CFG, &fimc->state);
179 void fimc_capture_irq_handler(struct fimc_dev *fimc, int deq_buf)
181 struct fimc_vid_cap *cap = &fimc->vid_cap;
182 struct fimc_pipeline *p = to_fimc_pipeline(cap->ve.pipe);
183 struct v4l2_subdev *csis = p->subdevs[IDX_CSIS];
184 struct fimc_frame *f = &cap->ctx->d_frame;
185 struct fimc_vid_buffer *v_buf;
187 if (test_and_clear_bit(ST_CAPT_SHUT, &fimc->state)) {
188 wake_up(&fimc->irq_queue);
192 if (!list_empty(&cap->active_buf_q) &&
193 test_bit(ST_CAPT_RUN, &fimc->state) && deq_buf) {
194 v_buf = fimc_active_queue_pop(cap);
196 v4l2_get_timestamp(&v_buf->vb.v4l2_buf.timestamp);
197 v_buf->vb.v4l2_buf.sequence = cap->frame_count++;
199 vb2_buffer_done(&v_buf->vb, VB2_BUF_STATE_DONE);
202 if (!list_empty(&cap->pending_buf_q)) {
204 v_buf = fimc_pending_queue_pop(cap);
205 fimc_hw_set_output_addr(fimc, &v_buf->paddr, cap->buf_index);
206 v_buf->index = cap->buf_index;
208 /* Move the buffer to the capture active queue */
209 fimc_active_queue_add(cap, v_buf);
211 dbg("next frame: %d, done frame: %d",
212 fimc_hw_get_frame_index(fimc), v_buf->index);
214 if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
218 * Set up a buffer at MIPI-CSIS if current image format
219 * requires the frame embedded data capture.
221 if (f->fmt->mdataplanes && !list_empty(&cap->active_buf_q)) {
222 unsigned int plane = ffs(f->fmt->mdataplanes) - 1;
223 unsigned int size = f->payload[plane];
224 s32 index = fimc_hw_get_frame_index(fimc);
227 list_for_each_entry(v_buf, &cap->active_buf_q, list) {
228 if (v_buf->index != index)
230 vaddr = vb2_plane_vaddr(&v_buf->vb, plane);
231 v4l2_subdev_call(csis, video, s_rx_buffer,
237 if (cap->active_buf_cnt == 0) {
239 clear_bit(ST_CAPT_RUN, &fimc->state);
241 if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
244 set_bit(ST_CAPT_RUN, &fimc->state);
247 if (test_bit(ST_CAPT_APPLY_CFG, &fimc->state))
248 fimc_capture_config_update(cap->ctx);
250 if (cap->active_buf_cnt == 1) {
251 fimc_deactivate_capture(fimc);
252 clear_bit(ST_CAPT_STREAM, &fimc->state);
255 dbg("frame: %d, active_buf_cnt: %d",
256 fimc_hw_get_frame_index(fimc), cap->active_buf_cnt);
260 static int start_streaming(struct vb2_queue *q, unsigned int count)
262 struct fimc_ctx *ctx = q->drv_priv;
263 struct fimc_dev *fimc = ctx->fimc_dev;
264 struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
268 vid_cap->frame_count = 0;
270 ret = fimc_capture_hw_init(fimc);
272 fimc_capture_state_cleanup(fimc, false);
276 set_bit(ST_CAPT_PEND, &fimc->state);
278 min_bufs = fimc->vid_cap.reqbufs_count > 1 ? 2 : 1;
280 if (vid_cap->active_buf_cnt >= min_bufs &&
281 !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) {
282 fimc_activate_capture(ctx);
284 if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
285 return fimc_pipeline_call(&vid_cap->ve, set_stream, 1);
291 static void stop_streaming(struct vb2_queue *q)
293 struct fimc_ctx *ctx = q->drv_priv;
294 struct fimc_dev *fimc = ctx->fimc_dev;
296 if (!fimc_capture_active(fimc))
299 fimc_stop_capture(fimc, false);
302 int fimc_capture_suspend(struct fimc_dev *fimc)
304 bool suspend = fimc_capture_busy(fimc);
306 int ret = fimc_stop_capture(fimc, suspend);
309 return fimc_pipeline_call(&fimc->vid_cap.ve, close);
312 static void buffer_queue(struct vb2_buffer *vb);
314 int fimc_capture_resume(struct fimc_dev *fimc)
316 struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
317 struct exynos_video_entity *ve = &vid_cap->ve;
318 struct fimc_vid_buffer *buf;
321 if (!test_and_clear_bit(ST_CAPT_SUSPENDED, &fimc->state))
324 INIT_LIST_HEAD(&fimc->vid_cap.active_buf_q);
325 vid_cap->buf_index = 0;
326 fimc_pipeline_call(ve, open, &ve->vdev.entity, false);
327 fimc_capture_hw_init(fimc);
329 clear_bit(ST_CAPT_SUSPENDED, &fimc->state);
331 for (i = 0; i < vid_cap->reqbufs_count; i++) {
332 if (list_empty(&vid_cap->pending_buf_q))
334 buf = fimc_pending_queue_pop(vid_cap);
335 buffer_queue(&buf->vb);
341 static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *pfmt,
342 unsigned int *num_buffers, unsigned int *num_planes,
343 unsigned int sizes[], void *allocators[])
345 const struct v4l2_pix_format_mplane *pixm = NULL;
346 struct fimc_ctx *ctx = vq->drv_priv;
347 struct fimc_frame *frame = &ctx->d_frame;
348 struct fimc_fmt *fmt = frame->fmt;
353 pixm = &pfmt->fmt.pix_mp;
354 fmt = fimc_find_format(&pixm->pixelformat, NULL,
355 FMT_FLAGS_CAM | FMT_FLAGS_M2M, -1);
356 wh = pixm->width * pixm->height;
358 wh = frame->f_width * frame->f_height;
364 *num_planes = fmt->memplanes;
366 for (i = 0; i < fmt->memplanes; i++) {
367 unsigned int size = (wh * fmt->depth[i]) / 8;
369 sizes[i] = max(size, pixm->plane_fmt[i].sizeimage);
370 else if (fimc_fmt_is_user_defined(fmt->color))
371 sizes[i] = frame->payload[i];
373 sizes[i] = max_t(u32, size, frame->payload[i]);
375 allocators[i] = ctx->fimc_dev->alloc_ctx;
381 static int buffer_prepare(struct vb2_buffer *vb)
383 struct vb2_queue *vq = vb->vb2_queue;
384 struct fimc_ctx *ctx = vq->drv_priv;
387 if (ctx->d_frame.fmt == NULL)
390 for (i = 0; i < ctx->d_frame.fmt->memplanes; i++) {
391 unsigned long size = ctx->d_frame.payload[i];
393 if (vb2_plane_size(vb, i) < size) {
394 v4l2_err(&ctx->fimc_dev->vid_cap.ve.vdev,
395 "User buffer too small (%ld < %ld)\n",
396 vb2_plane_size(vb, i), size);
399 vb2_set_plane_payload(vb, i, size);
405 static void buffer_queue(struct vb2_buffer *vb)
407 struct fimc_vid_buffer *buf
408 = container_of(vb, struct fimc_vid_buffer, vb);
409 struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
410 struct fimc_dev *fimc = ctx->fimc_dev;
411 struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
412 struct exynos_video_entity *ve = &vid_cap->ve;
416 spin_lock_irqsave(&fimc->slock, flags);
417 fimc_prepare_addr(ctx, &buf->vb, &ctx->d_frame, &buf->paddr);
419 if (!test_bit(ST_CAPT_SUSPENDED, &fimc->state) &&
420 !test_bit(ST_CAPT_STREAM, &fimc->state) &&
421 vid_cap->active_buf_cnt < FIMC_MAX_OUT_BUFS) {
422 /* Setup the buffer directly for processing. */
423 int buf_id = (vid_cap->reqbufs_count == 1) ? -1 :
426 fimc_hw_set_output_addr(fimc, &buf->paddr, buf_id);
427 buf->index = vid_cap->buf_index;
428 fimc_active_queue_add(vid_cap, buf);
430 if (++vid_cap->buf_index >= FIMC_MAX_OUT_BUFS)
431 vid_cap->buf_index = 0;
433 fimc_pending_queue_add(vid_cap, buf);
436 min_bufs = vid_cap->reqbufs_count > 1 ? 2 : 1;
439 if (vb2_is_streaming(&vid_cap->vbq) &&
440 vid_cap->active_buf_cnt >= min_bufs &&
441 !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) {
444 fimc_activate_capture(ctx);
445 spin_unlock_irqrestore(&fimc->slock, flags);
447 if (test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
450 ret = fimc_pipeline_call(ve, set_stream, 1);
452 v4l2_err(&ve->vdev, "stream on failed: %d\n", ret);
455 spin_unlock_irqrestore(&fimc->slock, flags);
458 static struct vb2_ops fimc_capture_qops = {
459 .queue_setup = queue_setup,
460 .buf_prepare = buffer_prepare,
461 .buf_queue = buffer_queue,
462 .wait_prepare = vb2_ops_wait_prepare,
463 .wait_finish = vb2_ops_wait_finish,
464 .start_streaming = start_streaming,
465 .stop_streaming = stop_streaming,
468 static int fimc_capture_set_default_format(struct fimc_dev *fimc);
470 static int fimc_capture_open(struct file *file)
472 struct fimc_dev *fimc = video_drvdata(file);
473 struct fimc_vid_cap *vc = &fimc->vid_cap;
474 struct exynos_video_entity *ve = &vc->ve;
477 dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
479 mutex_lock(&fimc->lock);
481 if (fimc_m2m_active(fimc))
484 set_bit(ST_CAPT_BUSY, &fimc->state);
485 ret = pm_runtime_get_sync(&fimc->pdev->dev);
489 ret = v4l2_fh_open(file);
491 pm_runtime_put_sync(&fimc->pdev->dev);
495 if (v4l2_fh_is_singular_file(file)) {
496 fimc_md_graph_lock(ve);
498 ret = fimc_pipeline_call(ve, open, &ve->vdev.entity, true);
500 if (ret == 0 && vc->user_subdev_api && vc->inh_sensor_ctrls) {
502 * Recreate controls of the the video node to drop
503 * any controls inherited from the sensor subdev.
505 fimc_ctrls_delete(vc->ctx);
507 ret = fimc_ctrls_create(vc->ctx);
509 vc->inh_sensor_ctrls = false;
512 ve->vdev.entity.use_count++;
514 fimc_md_graph_unlock(ve);
517 ret = fimc_capture_set_default_format(fimc);
520 clear_bit(ST_CAPT_BUSY, &fimc->state);
521 pm_runtime_put_sync(&fimc->pdev->dev);
522 v4l2_fh_release(file);
526 mutex_unlock(&fimc->lock);
530 static int fimc_capture_release(struct file *file)
532 struct fimc_dev *fimc = video_drvdata(file);
533 struct fimc_vid_cap *vc = &fimc->vid_cap;
534 bool close = v4l2_fh_is_singular_file(file);
537 dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
539 mutex_lock(&fimc->lock);
541 if (close && vc->streaming) {
542 media_entity_pipeline_stop(&vc->ve.vdev.entity);
543 vc->streaming = false;
546 ret = _vb2_fop_release(file, NULL);
549 clear_bit(ST_CAPT_BUSY, &fimc->state);
550 fimc_pipeline_call(&vc->ve, close);
551 clear_bit(ST_CAPT_SUSPENDED, &fimc->state);
553 fimc_md_graph_lock(&vc->ve);
554 vc->ve.vdev.entity.use_count--;
555 fimc_md_graph_unlock(&vc->ve);
558 pm_runtime_put_sync(&fimc->pdev->dev);
559 mutex_unlock(&fimc->lock);
564 static const struct v4l2_file_operations fimc_capture_fops = {
565 .owner = THIS_MODULE,
566 .open = fimc_capture_open,
567 .release = fimc_capture_release,
568 .poll = vb2_fop_poll,
569 .unlocked_ioctl = video_ioctl2,
570 .mmap = vb2_fop_mmap,
574 * Format and crop negotiation helpers
577 static struct fimc_fmt *fimc_capture_try_format(struct fimc_ctx *ctx,
578 u32 *width, u32 *height,
579 u32 *code, u32 *fourcc, int pad)
581 bool rotation = ctx->rotation == 90 || ctx->rotation == 270;
582 struct fimc_dev *fimc = ctx->fimc_dev;
583 const struct fimc_variant *var = fimc->variant;
584 const struct fimc_pix_limit *pl = var->pix_limit;
585 struct fimc_frame *dst = &ctx->d_frame;
586 u32 depth, min_w, max_w, min_h, align_h = 3;
587 u32 mask = FMT_FLAGS_CAM;
588 struct fimc_fmt *ffmt;
590 /* Conversion from/to JPEG or User Defined format is not supported */
591 if (code && ctx->s_frame.fmt && pad == FIMC_SD_PAD_SOURCE &&
592 fimc_fmt_is_user_defined(ctx->s_frame.fmt->color))
593 *code = ctx->s_frame.fmt->mbus_code;
595 if (fourcc && *fourcc != V4L2_PIX_FMT_JPEG && pad == FIMC_SD_PAD_SOURCE)
596 mask |= FMT_FLAGS_M2M;
598 if (pad == FIMC_SD_PAD_SINK_FIFO)
599 mask = FMT_FLAGS_WRITEBACK;
601 ffmt = fimc_find_format(fourcc, code, mask, 0);
606 *code = ffmt->mbus_code;
608 *fourcc = ffmt->fourcc;
610 if (pad != FIMC_SD_PAD_SOURCE) {
611 max_w = fimc_fmt_is_user_defined(ffmt->color) ?
612 pl->scaler_dis_w : pl->scaler_en_w;
613 /* Apply the camera input interface pixel constraints */
614 v4l_bound_align_image(width, max_t(u32, *width, 32), max_w, 4,
615 height, max_t(u32, *height, 32),
616 FIMC_CAMIF_MAX_HEIGHT,
617 fimc_fmt_is_user_defined(ffmt->color) ?
622 /* Can't scale or crop in transparent (JPEG) transfer mode */
623 if (fimc_fmt_is_user_defined(ffmt->color)) {
624 *width = ctx->s_frame.f_width;
625 *height = ctx->s_frame.f_height;
628 /* Apply the scaler and the output DMA constraints */
629 max_w = rotation ? pl->out_rot_en_w : pl->out_rot_dis_w;
630 if (ctx->state & FIMC_COMPOSE) {
631 min_w = dst->offs_h + dst->width;
632 min_h = dst->offs_v + dst->height;
634 min_w = var->min_out_pixsize;
635 min_h = var->min_out_pixsize;
637 if (var->min_vsize_align == 1 && !rotation)
638 align_h = fimc_fmt_is_rgb(ffmt->color) ? 0 : 1;
640 depth = fimc_get_format_depth(ffmt);
641 v4l_bound_align_image(width, min_w, max_w,
642 ffs(var->min_out_pixsize) - 1,
643 height, min_h, FIMC_CAMIF_MAX_HEIGHT,
645 64/(ALIGN(depth, 8)));
647 dbg("pad%d: code: 0x%x, %dx%d. dst fmt: %dx%d",
648 pad, code ? *code : 0, *width, *height,
649 dst->f_width, dst->f_height);
654 static void fimc_capture_try_selection(struct fimc_ctx *ctx,
658 bool rotate = ctx->rotation == 90 || ctx->rotation == 270;
659 struct fimc_dev *fimc = ctx->fimc_dev;
660 const struct fimc_variant *var = fimc->variant;
661 const struct fimc_pix_limit *pl = var->pix_limit;
662 struct fimc_frame *sink = &ctx->s_frame;
663 u32 max_w, max_h, min_w = 0, min_h = 0, min_sz;
664 u32 align_sz = 0, align_h = 4;
665 u32 max_sc_h, max_sc_v;
667 /* In JPEG transparent transfer mode cropping is not supported */
668 if (fimc_fmt_is_user_defined(ctx->d_frame.fmt->color)) {
669 r->width = sink->f_width;
670 r->height = sink->f_height;
671 r->left = r->top = 0;
674 if (target == V4L2_SEL_TGT_COMPOSE) {
675 if (ctx->rotation != 90 && ctx->rotation != 270)
677 max_sc_h = min(SCALER_MAX_HRATIO, 1 << (ffs(sink->width) - 3));
678 max_sc_v = min(SCALER_MAX_VRATIO, 1 << (ffs(sink->height) - 1));
679 min_sz = var->min_out_pixsize;
681 u32 depth = fimc_get_format_depth(sink->fmt);
682 align_sz = 64/ALIGN(depth, 8);
683 min_sz = var->min_inp_pixsize;
684 min_w = min_h = min_sz;
685 max_sc_h = max_sc_v = 1;
688 * For the compose rectangle the following constraints must be met:
689 * - it must fit in the sink pad format rectangle (f_width/f_height);
690 * - maximum downscaling ratio is 64;
691 * - maximum crop size depends if the rotator is used or not;
692 * - the sink pad format width/height must be 4 multiple of the
693 * prescaler ratios determined by sink pad size and source pad crop,
694 * the prescaler ratio is returned by fimc_get_scaler_factor().
697 rotate ? pl->out_rot_en_w : pl->out_rot_dis_w,
698 rotate ? sink->f_height : sink->f_width);
699 max_h = min_t(u32, FIMC_CAMIF_MAX_HEIGHT, sink->f_height);
701 if (target == V4L2_SEL_TGT_COMPOSE) {
702 min_w = min_t(u32, max_w, sink->f_width / max_sc_h);
703 min_h = min_t(u32, max_h, sink->f_height / max_sc_v);
705 swap(max_sc_h, max_sc_v);
709 v4l_bound_align_image(&r->width, min_w, max_w, ffs(min_sz) - 1,
710 &r->height, min_h, max_h, align_h,
712 /* Adjust left/top if crop/compose rectangle is out of bounds */
713 r->left = clamp_t(u32, r->left, 0, sink->f_width - r->width);
714 r->top = clamp_t(u32, r->top, 0, sink->f_height - r->height);
715 r->left = round_down(r->left, var->hor_offs_align);
717 dbg("target %#x: (%d,%d)/%dx%d, sink fmt: %dx%d",
718 target, r->left, r->top, r->width, r->height,
719 sink->f_width, sink->f_height);
723 * The video node ioctl operations
725 static int fimc_cap_querycap(struct file *file, void *priv,
726 struct v4l2_capability *cap)
728 struct fimc_dev *fimc = video_drvdata(file);
730 __fimc_vidioc_querycap(&fimc->pdev->dev, cap, V4L2_CAP_STREAMING |
731 V4L2_CAP_VIDEO_CAPTURE_MPLANE);
735 static int fimc_cap_enum_fmt_mplane(struct file *file, void *priv,
736 struct v4l2_fmtdesc *f)
738 struct fimc_fmt *fmt;
740 fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM | FMT_FLAGS_M2M,
744 strncpy(f->description, fmt->name, sizeof(f->description) - 1);
745 f->pixelformat = fmt->fourcc;
746 if (fmt->fourcc == MEDIA_BUS_FMT_JPEG_1X8)
747 f->flags |= V4L2_FMT_FLAG_COMPRESSED;
751 static struct media_entity *fimc_pipeline_get_head(struct media_entity *me)
753 struct media_pad *pad = &me->pads[0];
755 while (!(pad->flags & MEDIA_PAD_FL_SOURCE)) {
756 pad = media_entity_remote_pad(pad);
767 * fimc_pipeline_try_format - negotiate and/or set formats at pipeline
769 * @ctx: FIMC capture context
770 * @tfmt: media bus format to try/set on subdevs
771 * @fmt_id: fimc pixel format id corresponding to returned @tfmt (output)
772 * @set: true to set format on subdevs, false to try only
774 static int fimc_pipeline_try_format(struct fimc_ctx *ctx,
775 struct v4l2_mbus_framefmt *tfmt,
776 struct fimc_fmt **fmt_id,
779 struct fimc_dev *fimc = ctx->fimc_dev;
780 struct fimc_pipeline *p = to_fimc_pipeline(fimc->vid_cap.ve.pipe);
781 struct v4l2_subdev *sd = p->subdevs[IDX_SENSOR];
782 struct v4l2_subdev_format sfmt;
783 struct v4l2_mbus_framefmt *mf = &sfmt.format;
784 struct media_entity *me;
785 struct fimc_fmt *ffmt;
786 struct media_pad *pad;
790 if (WARN_ON(!sd || !tfmt))
793 memset(&sfmt, 0, sizeof(sfmt));
795 sfmt.which = set ? V4L2_SUBDEV_FORMAT_ACTIVE : V4L2_SUBDEV_FORMAT_TRY;
797 me = fimc_pipeline_get_head(&sd->entity);
800 ffmt = fimc_find_format(NULL, mf->code != 0 ? &mf->code : NULL,
804 * Notify user-space if common pixel code for
805 * host and sensor does not exist.
809 mf->code = tfmt->code = ffmt->mbus_code;
811 /* set format on all pipeline subdevs */
812 while (me != &fimc->vid_cap.subdev.entity) {
813 sd = media_entity_to_v4l2_subdev(me);
816 ret = v4l2_subdev_call(sd, pad, set_fmt, NULL, &sfmt);
820 if (me->pads[0].flags & MEDIA_PAD_FL_SINK) {
821 sfmt.pad = me->num_pads - 1;
822 mf->code = tfmt->code;
823 ret = v4l2_subdev_call(sd, pad, set_fmt, NULL,
829 pad = media_entity_remote_pad(&me->pads[sfmt.pad]);
835 if (mf->code != tfmt->code)
839 tfmt->width = mf->width;
840 tfmt->height = mf->height;
841 ffmt = fimc_capture_try_format(ctx, &tfmt->width, &tfmt->height,
842 NULL, &fcc, FIMC_SD_PAD_SINK_CAM);
843 ffmt = fimc_capture_try_format(ctx, &tfmt->width, &tfmt->height,
844 NULL, &fcc, FIMC_SD_PAD_SOURCE);
845 if (ffmt && ffmt->mbus_code)
846 mf->code = ffmt->mbus_code;
847 if (mf->width != tfmt->width || mf->height != tfmt->height)
849 tfmt->code = mf->code;
861 * fimc_get_sensor_frame_desc - query the sensor for media bus frame parameters
862 * @sensor: pointer to the sensor subdev
863 * @plane_fmt: provides plane sizes corresponding to the frame layout entries
864 * @try: true to set the frame parameters, false to query only
866 * This function is used by this driver only for compressed/blob data formats.
868 static int fimc_get_sensor_frame_desc(struct v4l2_subdev *sensor,
869 struct v4l2_plane_pix_format *plane_fmt,
870 unsigned int num_planes, bool try)
872 struct v4l2_mbus_frame_desc fd;
876 for (i = 0; i < num_planes; i++)
877 fd.entry[i].length = plane_fmt[i].sizeimage;
879 pad = sensor->entity.num_pads - 1;
881 ret = v4l2_subdev_call(sensor, pad, set_frame_desc, pad, &fd);
883 ret = v4l2_subdev_call(sensor, pad, get_frame_desc, pad, &fd);
888 if (num_planes != fd.num_entries)
891 for (i = 0; i < num_planes; i++)
892 plane_fmt[i].sizeimage = fd.entry[i].length;
894 if (fd.entry[0].length > FIMC_MAX_JPEG_BUF_SIZE) {
895 v4l2_err(sensor->v4l2_dev, "Unsupported buffer size: %u\n",
904 static int fimc_cap_g_fmt_mplane(struct file *file, void *fh,
905 struct v4l2_format *f)
907 struct fimc_dev *fimc = video_drvdata(file);
909 __fimc_get_format(&fimc->vid_cap.ctx->d_frame, f);
914 * Try or set format on the fimc.X.capture video node and additionally
915 * on the whole pipeline if @try is false.
916 * Locking: the caller must _not_ hold the graph mutex.
918 static int __video_try_or_set_format(struct fimc_dev *fimc,
919 struct v4l2_format *f, bool try,
920 struct fimc_fmt **inp_fmt,
921 struct fimc_fmt **out_fmt)
923 struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
924 struct fimc_vid_cap *vc = &fimc->vid_cap;
925 struct exynos_video_entity *ve = &vc->ve;
926 struct fimc_ctx *ctx = vc->ctx;
927 unsigned int width = 0, height = 0;
930 /* Pre-configure format at the camera input interface, for JPEG only */
931 if (fimc_jpeg_fourcc(pix->pixelformat)) {
932 fimc_capture_try_format(ctx, &pix->width, &pix->height,
933 NULL, &pix->pixelformat,
934 FIMC_SD_PAD_SINK_CAM);
937 height = pix->height;
939 ctx->s_frame.f_width = pix->width;
940 ctx->s_frame.f_height = pix->height;
944 /* Try the format at the scaler and the DMA output */
945 *out_fmt = fimc_capture_try_format(ctx, &pix->width, &pix->height,
946 NULL, &pix->pixelformat,
948 if (*out_fmt == NULL)
951 /* Restore image width/height for JPEG (no resizing supported). */
952 if (try && fimc_jpeg_fourcc(pix->pixelformat)) {
954 pix->height = height;
957 /* Try to match format at the host and the sensor */
958 if (!vc->user_subdev_api) {
959 struct v4l2_mbus_framefmt mbus_fmt;
960 struct v4l2_mbus_framefmt *mf;
962 mf = try ? &mbus_fmt : &fimc->vid_cap.ci_fmt;
964 mf->code = (*out_fmt)->mbus_code;
965 mf->width = pix->width;
966 mf->height = pix->height;
968 fimc_md_graph_lock(ve);
969 ret = fimc_pipeline_try_format(ctx, mf, inp_fmt, try);
970 fimc_md_graph_unlock(ve);
975 pix->width = mf->width;
976 pix->height = mf->height;
979 fimc_adjust_mplane_format(*out_fmt, pix->width, pix->height, pix);
981 if ((*out_fmt)->flags & FMT_FLAGS_COMPRESSED) {
982 struct v4l2_subdev *sensor;
984 fimc_md_graph_lock(ve);
986 sensor = __fimc_md_get_subdev(ve->pipe, IDX_SENSOR);
988 fimc_get_sensor_frame_desc(sensor, pix->plane_fmt,
989 (*out_fmt)->memplanes, try);
993 fimc_md_graph_unlock(ve);
999 static int fimc_cap_try_fmt_mplane(struct file *file, void *fh,
1000 struct v4l2_format *f)
1002 struct fimc_dev *fimc = video_drvdata(file);
1003 struct fimc_fmt *out_fmt = NULL, *inp_fmt = NULL;
1005 return __video_try_or_set_format(fimc, f, true, &inp_fmt, &out_fmt);
1008 static void fimc_capture_mark_jpeg_xfer(struct fimc_ctx *ctx,
1009 enum fimc_color_fmt color)
1011 bool jpeg = fimc_fmt_is_user_defined(color);
1013 ctx->scaler.enabled = !jpeg;
1014 fimc_ctrls_activate(ctx, !jpeg);
1017 set_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state);
1019 clear_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state);
1022 static int __fimc_capture_set_format(struct fimc_dev *fimc,
1023 struct v4l2_format *f)
1025 struct fimc_vid_cap *vc = &fimc->vid_cap;
1026 struct fimc_ctx *ctx = vc->ctx;
1027 struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
1028 struct fimc_frame *ff = &ctx->d_frame;
1029 struct fimc_fmt *inp_fmt = NULL;
1032 if (vb2_is_busy(&fimc->vid_cap.vbq))
1035 ret = __video_try_or_set_format(fimc, f, false, &inp_fmt, &ff->fmt);
1039 /* Update RGB Alpha control state and value range */
1040 fimc_alpha_ctrl_update(ctx);
1042 for (i = 0; i < ff->fmt->memplanes; i++) {
1043 ff->bytesperline[i] = pix->plane_fmt[i].bytesperline;
1044 ff->payload[i] = pix->plane_fmt[i].sizeimage;
1047 set_frame_bounds(ff, pix->width, pix->height);
1048 /* Reset the composition rectangle if not yet configured */
1049 if (!(ctx->state & FIMC_COMPOSE))
1050 set_frame_crop(ff, 0, 0, pix->width, pix->height);
1052 fimc_capture_mark_jpeg_xfer(ctx, ff->fmt->color);
1054 /* Reset cropping and set format at the camera interface input */
1055 if (!vc->user_subdev_api) {
1056 ctx->s_frame.fmt = inp_fmt;
1057 set_frame_bounds(&ctx->s_frame, pix->width, pix->height);
1058 set_frame_crop(&ctx->s_frame, 0, 0, pix->width, pix->height);
1064 static int fimc_cap_s_fmt_mplane(struct file *file, void *priv,
1065 struct v4l2_format *f)
1067 struct fimc_dev *fimc = video_drvdata(file);
1069 return __fimc_capture_set_format(fimc, f);
1072 static int fimc_cap_enum_input(struct file *file, void *priv,
1073 struct v4l2_input *i)
1075 struct fimc_dev *fimc = video_drvdata(file);
1076 struct exynos_video_entity *ve = &fimc->vid_cap.ve;
1077 struct v4l2_subdev *sd;
1082 i->type = V4L2_INPUT_TYPE_CAMERA;
1083 fimc_md_graph_lock(ve);
1084 sd = __fimc_md_get_subdev(ve->pipe, IDX_SENSOR);
1085 fimc_md_graph_unlock(ve);
1088 strlcpy(i->name, sd->name, sizeof(i->name));
1093 static int fimc_cap_s_input(struct file *file, void *priv, unsigned int i)
1095 return i == 0 ? i : -EINVAL;
1098 static int fimc_cap_g_input(struct file *file, void *priv, unsigned int *i)
1105 * fimc_pipeline_validate - check for formats inconsistencies
1106 * between source and sink pad of each link
1108 * Return 0 if all formats match or -EPIPE otherwise.
1110 static int fimc_pipeline_validate(struct fimc_dev *fimc)
1112 struct v4l2_subdev_format sink_fmt, src_fmt;
1113 struct fimc_vid_cap *vc = &fimc->vid_cap;
1114 struct v4l2_subdev *sd = &vc->subdev;
1115 struct fimc_pipeline *p = to_fimc_pipeline(vc->ve.pipe);
1116 struct media_pad *sink_pad, *src_pad;
1121 * Find current entity sink pad and any remote sink pad linked
1122 * to it. We stop if there is no sink pad in current entity or
1123 * it is not linked to any other remote entity.
1127 for (i = 0; i < sd->entity.num_pads; i++) {
1128 struct media_pad *p = &sd->entity.pads[i];
1130 if (p->flags & MEDIA_PAD_FL_SINK) {
1132 src_pad = media_entity_remote_pad(sink_pad);
1138 if (src_pad == NULL ||
1139 media_entity_type(src_pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
1142 /* Don't call FIMC subdev operation to avoid nested locking */
1143 if (sd == &vc->subdev) {
1144 struct fimc_frame *ff = &vc->ctx->s_frame;
1145 sink_fmt.format.width = ff->f_width;
1146 sink_fmt.format.height = ff->f_height;
1147 sink_fmt.format.code = ff->fmt ? ff->fmt->mbus_code : 0;
1149 sink_fmt.pad = sink_pad->index;
1150 sink_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
1151 ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sink_fmt);
1152 if (ret < 0 && ret != -ENOIOCTLCMD)
1156 /* Retrieve format at the source pad */
1157 sd = media_entity_to_v4l2_subdev(src_pad->entity);
1158 src_fmt.pad = src_pad->index;
1159 src_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
1160 ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &src_fmt);
1161 if (ret < 0 && ret != -ENOIOCTLCMD)
1164 if (src_fmt.format.width != sink_fmt.format.width ||
1165 src_fmt.format.height != sink_fmt.format.height ||
1166 src_fmt.format.code != sink_fmt.format.code)
1169 if (sd == p->subdevs[IDX_SENSOR] &&
1170 fimc_user_defined_mbus_fmt(src_fmt.format.code)) {
1171 struct v4l2_plane_pix_format plane_fmt[FIMC_MAX_PLANES];
1172 struct fimc_frame *frame = &vc->ctx->d_frame;
1175 ret = fimc_get_sensor_frame_desc(sd, plane_fmt,
1176 frame->fmt->memplanes,
1181 for (i = 0; i < frame->fmt->memplanes; i++)
1182 if (frame->payload[i] < plane_fmt[i].sizeimage)
1189 static int fimc_cap_streamon(struct file *file, void *priv,
1190 enum v4l2_buf_type type)
1192 struct fimc_dev *fimc = video_drvdata(file);
1193 struct fimc_vid_cap *vc = &fimc->vid_cap;
1194 struct media_entity *entity = &vc->ve.vdev.entity;
1195 struct fimc_source_info *si = NULL;
1196 struct v4l2_subdev *sd;
1199 if (fimc_capture_active(fimc))
1202 ret = media_entity_pipeline_start(entity, &vc->ve.pipe->mp);
1206 sd = __fimc_md_get_subdev(vc->ve.pipe, IDX_SENSOR);
1208 si = v4l2_get_subdev_hostdata(sd);
1215 * Save configuration data related to currently attached image
1216 * sensor or other data source, e.g. FIMC-IS.
1218 vc->source_config = *si;
1220 if (vc->input == GRP_ID_FIMC_IS)
1221 vc->source_config.fimc_bus_type = FIMC_BUS_TYPE_ISP_WRITEBACK;
1223 if (vc->user_subdev_api) {
1224 ret = fimc_pipeline_validate(fimc);
1229 ret = vb2_ioctl_streamon(file, priv, type);
1231 vc->streaming = true;
1236 media_entity_pipeline_stop(entity);
1240 static int fimc_cap_streamoff(struct file *file, void *priv,
1241 enum v4l2_buf_type type)
1243 struct fimc_dev *fimc = video_drvdata(file);
1244 struct fimc_vid_cap *vc = &fimc->vid_cap;
1247 ret = vb2_ioctl_streamoff(file, priv, type);
1251 media_entity_pipeline_stop(&vc->ve.vdev.entity);
1252 vc->streaming = false;
1256 static int fimc_cap_reqbufs(struct file *file, void *priv,
1257 struct v4l2_requestbuffers *reqbufs)
1259 struct fimc_dev *fimc = video_drvdata(file);
1262 ret = vb2_ioctl_reqbufs(file, priv, reqbufs);
1265 fimc->vid_cap.reqbufs_count = reqbufs->count;
1270 static int fimc_cap_g_selection(struct file *file, void *fh,
1271 struct v4l2_selection *s)
1273 struct fimc_dev *fimc = video_drvdata(file);
1274 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1275 struct fimc_frame *f = &ctx->s_frame;
1277 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1280 switch (s->target) {
1281 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
1282 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
1284 case V4L2_SEL_TGT_CROP_BOUNDS:
1285 case V4L2_SEL_TGT_CROP_DEFAULT:
1288 s->r.width = f->o_width;
1289 s->r.height = f->o_height;
1292 case V4L2_SEL_TGT_COMPOSE:
1294 case V4L2_SEL_TGT_CROP:
1295 s->r.left = f->offs_h;
1296 s->r.top = f->offs_v;
1297 s->r.width = f->width;
1298 s->r.height = f->height;
1305 /* Return 1 if rectangle a is enclosed in rectangle b, or 0 otherwise. */
1306 static int enclosed_rectangle(struct v4l2_rect *a, struct v4l2_rect *b)
1308 if (a->left < b->left || a->top < b->top)
1310 if (a->left + a->width > b->left + b->width)
1312 if (a->top + a->height > b->top + b->height)
1318 static int fimc_cap_s_selection(struct file *file, void *fh,
1319 struct v4l2_selection *s)
1321 struct fimc_dev *fimc = video_drvdata(file);
1322 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1323 struct v4l2_rect rect = s->r;
1324 struct fimc_frame *f;
1325 unsigned long flags;
1327 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1330 if (s->target == V4L2_SEL_TGT_COMPOSE)
1332 else if (s->target == V4L2_SEL_TGT_CROP)
1337 fimc_capture_try_selection(ctx, &rect, s->target);
1339 if (s->flags & V4L2_SEL_FLAG_LE &&
1340 !enclosed_rectangle(&rect, &s->r))
1343 if (s->flags & V4L2_SEL_FLAG_GE &&
1344 !enclosed_rectangle(&s->r, &rect))
1348 spin_lock_irqsave(&fimc->slock, flags);
1349 set_frame_crop(f, s->r.left, s->r.top, s->r.width,
1351 spin_unlock_irqrestore(&fimc->slock, flags);
1353 set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
1357 static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops = {
1358 .vidioc_querycap = fimc_cap_querycap,
1360 .vidioc_enum_fmt_vid_cap_mplane = fimc_cap_enum_fmt_mplane,
1361 .vidioc_try_fmt_vid_cap_mplane = fimc_cap_try_fmt_mplane,
1362 .vidioc_s_fmt_vid_cap_mplane = fimc_cap_s_fmt_mplane,
1363 .vidioc_g_fmt_vid_cap_mplane = fimc_cap_g_fmt_mplane,
1365 .vidioc_reqbufs = fimc_cap_reqbufs,
1366 .vidioc_querybuf = vb2_ioctl_querybuf,
1367 .vidioc_qbuf = vb2_ioctl_qbuf,
1368 .vidioc_dqbuf = vb2_ioctl_dqbuf,
1369 .vidioc_expbuf = vb2_ioctl_expbuf,
1370 .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
1371 .vidioc_create_bufs = vb2_ioctl_create_bufs,
1373 .vidioc_streamon = fimc_cap_streamon,
1374 .vidioc_streamoff = fimc_cap_streamoff,
1376 .vidioc_g_selection = fimc_cap_g_selection,
1377 .vidioc_s_selection = fimc_cap_s_selection,
1379 .vidioc_enum_input = fimc_cap_enum_input,
1380 .vidioc_s_input = fimc_cap_s_input,
1381 .vidioc_g_input = fimc_cap_g_input,
1384 /* Capture subdev media entity operations */
1385 static int fimc_link_setup(struct media_entity *entity,
1386 const struct media_pad *local,
1387 const struct media_pad *remote, u32 flags)
1389 struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
1390 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1391 struct fimc_vid_cap *vc = &fimc->vid_cap;
1392 struct v4l2_subdev *sensor;
1394 if (media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
1397 if (WARN_ON(fimc == NULL))
1400 dbg("%s --> %s, flags: 0x%x. input: 0x%x",
1401 local->entity->name, remote->entity->name, flags,
1402 fimc->vid_cap.input);
1404 if (!(flags & MEDIA_LNK_FL_ENABLED)) {
1405 fimc->vid_cap.input = 0;
1412 vc->input = sd->grp_id;
1414 if (vc->user_subdev_api || vc->inh_sensor_ctrls)
1417 /* Inherit V4L2 controls from the image sensor subdev. */
1418 sensor = fimc_find_remote_sensor(&vc->subdev.entity);
1422 return v4l2_ctrl_add_handler(&vc->ctx->ctrls.handler,
1423 sensor->ctrl_handler, NULL);
1426 static const struct media_entity_operations fimc_sd_media_ops = {
1427 .link_setup = fimc_link_setup,
1431 * fimc_sensor_notify - v4l2_device notification from a sensor subdev
1432 * @sd: pointer to a subdev generating the notification
1433 * @notification: the notification type, must be S5P_FIMC_TX_END_NOTIFY
1434 * @arg: pointer to an u32 type integer that stores the frame payload value
1436 * The End Of Frame notification sent by sensor subdev in its still capture
1437 * mode. If there is only a single VSYNC generated by the sensor at the
1438 * beginning of a frame transmission, FIMC does not issue the LastIrq
1439 * (end of frame) interrupt. And this notification is used to complete the
1440 * frame capture and returning a buffer to user-space. Subdev drivers should
1441 * call this notification from their last 'End of frame capture' interrupt.
1443 void fimc_sensor_notify(struct v4l2_subdev *sd, unsigned int notification,
1446 struct fimc_source_info *si;
1447 struct fimc_vid_buffer *buf;
1448 struct fimc_md *fmd;
1449 struct fimc_dev *fimc;
1450 unsigned long flags;
1455 si = v4l2_get_subdev_hostdata(sd);
1456 fmd = entity_to_fimc_mdev(&sd->entity);
1458 spin_lock_irqsave(&fmd->slock, flags);
1460 fimc = si ? source_to_sensor_info(si)->host : NULL;
1462 if (fimc && arg && notification == S5P_FIMC_TX_END_NOTIFY &&
1463 test_bit(ST_CAPT_PEND, &fimc->state)) {
1464 unsigned long irq_flags;
1465 spin_lock_irqsave(&fimc->slock, irq_flags);
1466 if (!list_empty(&fimc->vid_cap.active_buf_q)) {
1467 buf = list_entry(fimc->vid_cap.active_buf_q.next,
1468 struct fimc_vid_buffer, list);
1469 vb2_set_plane_payload(&buf->vb, 0, *((u32 *)arg));
1471 fimc_capture_irq_handler(fimc, 1);
1472 fimc_deactivate_capture(fimc);
1473 spin_unlock_irqrestore(&fimc->slock, irq_flags);
1475 spin_unlock_irqrestore(&fmd->slock, flags);
1478 static int fimc_subdev_enum_mbus_code(struct v4l2_subdev *sd,
1479 struct v4l2_subdev_pad_config *cfg,
1480 struct v4l2_subdev_mbus_code_enum *code)
1482 struct fimc_fmt *fmt;
1484 fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, code->index);
1487 code->code = fmt->mbus_code;
1491 static int fimc_subdev_get_fmt(struct v4l2_subdev *sd,
1492 struct v4l2_subdev_pad_config *cfg,
1493 struct v4l2_subdev_format *fmt)
1495 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1496 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1497 struct fimc_frame *ff = &ctx->s_frame;
1498 struct v4l2_mbus_framefmt *mf;
1500 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
1501 mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
1507 mutex_lock(&fimc->lock);
1510 case FIMC_SD_PAD_SOURCE:
1511 if (!WARN_ON(ff->fmt == NULL))
1512 mf->code = ff->fmt->mbus_code;
1513 /* Sink pads crop rectangle size */
1514 mf->width = ff->width;
1515 mf->height = ff->height;
1517 case FIMC_SD_PAD_SINK_FIFO:
1518 *mf = fimc->vid_cap.wb_fmt;
1520 case FIMC_SD_PAD_SINK_CAM:
1522 *mf = fimc->vid_cap.ci_fmt;
1526 mutex_unlock(&fimc->lock);
1527 mf->colorspace = V4L2_COLORSPACE_JPEG;
1532 static int fimc_subdev_set_fmt(struct v4l2_subdev *sd,
1533 struct v4l2_subdev_pad_config *cfg,
1534 struct v4l2_subdev_format *fmt)
1536 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1537 struct v4l2_mbus_framefmt *mf = &fmt->format;
1538 struct fimc_vid_cap *vc = &fimc->vid_cap;
1539 struct fimc_ctx *ctx = vc->ctx;
1540 struct fimc_frame *ff;
1541 struct fimc_fmt *ffmt;
1543 dbg("pad%d: code: 0x%x, %dx%d",
1544 fmt->pad, mf->code, mf->width, mf->height);
1546 if (fmt->pad == FIMC_SD_PAD_SOURCE && vb2_is_busy(&vc->vbq))
1549 mutex_lock(&fimc->lock);
1550 ffmt = fimc_capture_try_format(ctx, &mf->width, &mf->height,
1551 &mf->code, NULL, fmt->pad);
1552 mutex_unlock(&fimc->lock);
1553 mf->colorspace = V4L2_COLORSPACE_JPEG;
1555 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
1556 mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
1560 /* There must be a bug in the driver if this happens */
1561 if (WARN_ON(ffmt == NULL))
1564 /* Update RGB Alpha control state and value range */
1565 fimc_alpha_ctrl_update(ctx);
1567 fimc_capture_mark_jpeg_xfer(ctx, ffmt->color);
1568 if (fmt->pad == FIMC_SD_PAD_SOURCE) {
1570 /* Sink pads crop rectangle size */
1571 mf->width = ctx->s_frame.width;
1572 mf->height = ctx->s_frame.height;
1577 mutex_lock(&fimc->lock);
1578 set_frame_bounds(ff, mf->width, mf->height);
1580 if (fmt->pad == FIMC_SD_PAD_SINK_FIFO)
1582 else if (fmt->pad == FIMC_SD_PAD_SINK_CAM)
1587 /* Reset the crop rectangle if required. */
1588 if (!(fmt->pad == FIMC_SD_PAD_SOURCE && (ctx->state & FIMC_COMPOSE)))
1589 set_frame_crop(ff, 0, 0, mf->width, mf->height);
1591 if (fmt->pad != FIMC_SD_PAD_SOURCE)
1592 ctx->state &= ~FIMC_COMPOSE;
1594 mutex_unlock(&fimc->lock);
1598 static int fimc_subdev_get_selection(struct v4l2_subdev *sd,
1599 struct v4l2_subdev_pad_config *cfg,
1600 struct v4l2_subdev_selection *sel)
1602 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1603 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1604 struct fimc_frame *f = &ctx->s_frame;
1605 struct v4l2_rect *r = &sel->r;
1606 struct v4l2_rect *try_sel;
1608 if (sel->pad == FIMC_SD_PAD_SOURCE)
1611 mutex_lock(&fimc->lock);
1613 switch (sel->target) {
1614 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
1616 case V4L2_SEL_TGT_CROP_BOUNDS:
1617 r->width = f->o_width;
1618 r->height = f->o_height;
1621 mutex_unlock(&fimc->lock);
1624 case V4L2_SEL_TGT_CROP:
1625 try_sel = v4l2_subdev_get_try_crop(sd, cfg, sel->pad);
1627 case V4L2_SEL_TGT_COMPOSE:
1628 try_sel = v4l2_subdev_get_try_compose(sd, cfg, sel->pad);
1632 mutex_unlock(&fimc->lock);
1636 if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {
1639 r->left = f->offs_h;
1641 r->width = f->width;
1642 r->height = f->height;
1645 dbg("target %#x: l:%d, t:%d, %dx%d, f_w: %d, f_h: %d",
1646 sel->pad, r->left, r->top, r->width, r->height,
1647 f->f_width, f->f_height);
1649 mutex_unlock(&fimc->lock);
1653 static int fimc_subdev_set_selection(struct v4l2_subdev *sd,
1654 struct v4l2_subdev_pad_config *cfg,
1655 struct v4l2_subdev_selection *sel)
1657 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1658 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1659 struct fimc_frame *f = &ctx->s_frame;
1660 struct v4l2_rect *r = &sel->r;
1661 struct v4l2_rect *try_sel;
1662 unsigned long flags;
1664 if (sel->pad == FIMC_SD_PAD_SOURCE)
1667 mutex_lock(&fimc->lock);
1668 fimc_capture_try_selection(ctx, r, V4L2_SEL_TGT_CROP);
1670 switch (sel->target) {
1671 case V4L2_SEL_TGT_CROP:
1672 try_sel = v4l2_subdev_get_try_crop(sd, cfg, sel->pad);
1674 case V4L2_SEL_TGT_COMPOSE:
1675 try_sel = v4l2_subdev_get_try_compose(sd, cfg, sel->pad);
1679 mutex_unlock(&fimc->lock);
1683 if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {
1686 spin_lock_irqsave(&fimc->slock, flags);
1687 set_frame_crop(f, r->left, r->top, r->width, r->height);
1688 set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
1689 if (sel->target == V4L2_SEL_TGT_COMPOSE)
1690 ctx->state |= FIMC_COMPOSE;
1691 spin_unlock_irqrestore(&fimc->slock, flags);
1694 dbg("target %#x: (%d,%d)/%dx%d", sel->target, r->left, r->top,
1695 r->width, r->height);
1697 mutex_unlock(&fimc->lock);
1701 static struct v4l2_subdev_pad_ops fimc_subdev_pad_ops = {
1702 .enum_mbus_code = fimc_subdev_enum_mbus_code,
1703 .get_selection = fimc_subdev_get_selection,
1704 .set_selection = fimc_subdev_set_selection,
1705 .get_fmt = fimc_subdev_get_fmt,
1706 .set_fmt = fimc_subdev_set_fmt,
1709 static struct v4l2_subdev_ops fimc_subdev_ops = {
1710 .pad = &fimc_subdev_pad_ops,
1713 /* Set default format at the sensor and host interface */
1714 static int fimc_capture_set_default_format(struct fimc_dev *fimc)
1716 struct v4l2_format fmt = {
1717 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
1719 .width = FIMC_DEFAULT_WIDTH,
1720 .height = FIMC_DEFAULT_HEIGHT,
1721 .pixelformat = V4L2_PIX_FMT_YUYV,
1722 .field = V4L2_FIELD_NONE,
1723 .colorspace = V4L2_COLORSPACE_JPEG,
1727 return __fimc_capture_set_format(fimc, &fmt);
1730 /* fimc->lock must be already initialized */
1731 static int fimc_register_capture_device(struct fimc_dev *fimc,
1732 struct v4l2_device *v4l2_dev)
1734 struct video_device *vfd = &fimc->vid_cap.ve.vdev;
1735 struct vb2_queue *q = &fimc->vid_cap.vbq;
1736 struct fimc_ctx *ctx;
1737 struct fimc_vid_cap *vid_cap;
1738 struct fimc_fmt *fmt;
1741 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
1745 ctx->fimc_dev = fimc;
1746 ctx->in_path = FIMC_IO_CAMERA;
1747 ctx->out_path = FIMC_IO_DMA;
1748 ctx->state = FIMC_CTX_CAP;
1749 ctx->s_frame.fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0);
1750 ctx->d_frame.fmt = ctx->s_frame.fmt;
1752 memset(vfd, 0, sizeof(*vfd));
1753 snprintf(vfd->name, sizeof(vfd->name), "fimc.%d.capture", fimc->id);
1755 vfd->fops = &fimc_capture_fops;
1756 vfd->ioctl_ops = &fimc_capture_ioctl_ops;
1757 vfd->v4l2_dev = v4l2_dev;
1759 vfd->release = video_device_release_empty;
1761 vfd->lock = &fimc->lock;
1763 video_set_drvdata(vfd, fimc);
1764 vid_cap = &fimc->vid_cap;
1765 vid_cap->active_buf_cnt = 0;
1766 vid_cap->reqbufs_count = 0;
1769 INIT_LIST_HEAD(&vid_cap->pending_buf_q);
1770 INIT_LIST_HEAD(&vid_cap->active_buf_q);
1772 memset(q, 0, sizeof(*q));
1773 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1774 q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1776 q->ops = &fimc_capture_qops;
1777 q->mem_ops = &vb2_dma_contig_memops;
1778 q->buf_struct_size = sizeof(struct fimc_vid_buffer);
1779 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1780 q->lock = &fimc->lock;
1782 ret = vb2_queue_init(q);
1786 /* Default format configuration */
1787 fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0);
1788 vid_cap->ci_fmt.width = FIMC_DEFAULT_WIDTH;
1789 vid_cap->ci_fmt.height = FIMC_DEFAULT_HEIGHT;
1790 vid_cap->ci_fmt.code = fmt->mbus_code;
1792 ctx->s_frame.width = FIMC_DEFAULT_WIDTH;
1793 ctx->s_frame.height = FIMC_DEFAULT_HEIGHT;
1794 ctx->s_frame.fmt = fmt;
1796 fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_WRITEBACK, 0);
1797 vid_cap->wb_fmt = vid_cap->ci_fmt;
1798 vid_cap->wb_fmt.code = fmt->mbus_code;
1800 vid_cap->vd_pad.flags = MEDIA_PAD_FL_SINK;
1801 ret = media_entity_init(&vfd->entity, 1, &vid_cap->vd_pad, 0);
1805 ret = fimc_ctrls_create(ctx);
1807 goto err_me_cleanup;
1809 ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
1813 v4l2_info(v4l2_dev, "Registered %s as /dev/%s\n",
1814 vfd->name, video_device_node_name(vfd));
1816 vfd->ctrl_handler = &ctx->ctrls.handler;
1820 fimc_ctrls_delete(ctx);
1822 media_entity_cleanup(&vfd->entity);
1828 static int fimc_capture_subdev_registered(struct v4l2_subdev *sd)
1830 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1836 ret = fimc_register_m2m_device(fimc, sd->v4l2_dev);
1840 fimc->vid_cap.ve.pipe = v4l2_get_subdev_hostdata(sd);
1842 ret = fimc_register_capture_device(fimc, sd->v4l2_dev);
1844 fimc_unregister_m2m_device(fimc);
1845 fimc->vid_cap.ve.pipe = NULL;
1851 static void fimc_capture_subdev_unregistered(struct v4l2_subdev *sd)
1853 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1854 struct video_device *vdev;
1859 mutex_lock(&fimc->lock);
1861 fimc_unregister_m2m_device(fimc);
1862 vdev = &fimc->vid_cap.ve.vdev;
1864 if (video_is_registered(vdev)) {
1865 video_unregister_device(vdev);
1866 media_entity_cleanup(&vdev->entity);
1867 fimc_ctrls_delete(fimc->vid_cap.ctx);
1868 fimc->vid_cap.ve.pipe = NULL;
1870 kfree(fimc->vid_cap.ctx);
1871 fimc->vid_cap.ctx = NULL;
1873 mutex_unlock(&fimc->lock);
1876 static const struct v4l2_subdev_internal_ops fimc_capture_sd_internal_ops = {
1877 .registered = fimc_capture_subdev_registered,
1878 .unregistered = fimc_capture_subdev_unregistered,
1881 int fimc_initialize_capture_subdev(struct fimc_dev *fimc)
1883 struct v4l2_subdev *sd = &fimc->vid_cap.subdev;
1886 v4l2_subdev_init(sd, &fimc_subdev_ops);
1887 sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1888 snprintf(sd->name, sizeof(sd->name), "FIMC.%d", fimc->id);
1890 fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK_CAM].flags = MEDIA_PAD_FL_SINK;
1891 fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK_FIFO].flags = MEDIA_PAD_FL_SINK;
1892 fimc->vid_cap.sd_pads[FIMC_SD_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
1893 ret = media_entity_init(&sd->entity, FIMC_SD_PADS_NUM,
1894 fimc->vid_cap.sd_pads, 0);
1898 sd->entity.ops = &fimc_sd_media_ops;
1899 sd->internal_ops = &fimc_capture_sd_internal_ops;
1900 v4l2_set_subdevdata(sd, fimc);
1904 void fimc_unregister_capture_subdev(struct fimc_dev *fimc)
1906 struct v4l2_subdev *sd = &fimc->vid_cap.subdev;
1908 v4l2_device_unregister_subdev(sd);
1909 media_entity_cleanup(&sd->entity);
1910 v4l2_set_subdevdata(sd, NULL);