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-v4l2.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, 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, 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
149 * @ctx: FIMC capture context
151 * To be called from within the interrupt handler with fimc.slock
152 * spinlock held. It updates the camera pixel crop, rotation and
155 static int fimc_capture_config_update(struct fimc_ctx *ctx)
157 struct fimc_dev *fimc = ctx->fimc_dev;
160 fimc_hw_set_camera_offset(fimc, &ctx->s_frame);
162 ret = fimc_set_scaler_info(ctx);
166 fimc_hw_set_prescaler(ctx);
167 fimc_hw_set_mainscaler(ctx);
168 fimc_hw_set_target_format(ctx);
169 fimc_hw_set_rotation(ctx);
170 fimc_hw_set_effect(ctx);
171 fimc_prepare_dma_offset(ctx, &ctx->d_frame);
172 fimc_hw_set_out_dma(ctx);
173 if (fimc->drv_data->alpha_color)
174 fimc_hw_set_rgb_alpha(ctx);
176 clear_bit(ST_CAPT_APPLY_CFG, &fimc->state);
180 void fimc_capture_irq_handler(struct fimc_dev *fimc, int deq_buf)
182 struct fimc_vid_cap *cap = &fimc->vid_cap;
183 struct fimc_pipeline *p = to_fimc_pipeline(cap->ve.pipe);
184 struct v4l2_subdev *csis = p->subdevs[IDX_CSIS];
185 struct fimc_frame *f = &cap->ctx->d_frame;
186 struct fimc_vid_buffer *v_buf;
188 if (test_and_clear_bit(ST_CAPT_SHUT, &fimc->state)) {
189 wake_up(&fimc->irq_queue);
193 if (!list_empty(&cap->active_buf_q) &&
194 test_bit(ST_CAPT_RUN, &fimc->state) && deq_buf) {
195 v_buf = fimc_active_queue_pop(cap);
197 v_buf->vb.vb2_buf.timestamp = ktime_get_ns();
198 v_buf->vb.sequence = cap->frame_count++;
200 vb2_buffer_done(&v_buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
203 if (!list_empty(&cap->pending_buf_q)) {
205 v_buf = fimc_pending_queue_pop(cap);
206 fimc_hw_set_output_addr(fimc, &v_buf->paddr, cap->buf_index);
207 v_buf->index = cap->buf_index;
209 /* Move the buffer to the capture active queue */
210 fimc_active_queue_add(cap, v_buf);
212 dbg("next frame: %d, done frame: %d",
213 fimc_hw_get_frame_index(fimc), v_buf->index);
215 if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
219 * Set up a buffer at MIPI-CSIS if current image format
220 * requires the frame embedded data capture.
222 if (f->fmt->mdataplanes && !list_empty(&cap->active_buf_q)) {
223 unsigned int plane = ffs(f->fmt->mdataplanes) - 1;
224 unsigned int size = f->payload[plane];
225 s32 index = fimc_hw_get_frame_index(fimc);
228 list_for_each_entry(v_buf, &cap->active_buf_q, list) {
229 if (v_buf->index != index)
231 vaddr = vb2_plane_vaddr(&v_buf->vb.vb2_buf, plane);
232 v4l2_subdev_call(csis, video, s_rx_buffer,
238 if (cap->active_buf_cnt == 0) {
240 clear_bit(ST_CAPT_RUN, &fimc->state);
242 if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
245 set_bit(ST_CAPT_RUN, &fimc->state);
248 if (test_bit(ST_CAPT_APPLY_CFG, &fimc->state))
249 fimc_capture_config_update(cap->ctx);
251 if (cap->active_buf_cnt == 1) {
252 fimc_deactivate_capture(fimc);
253 clear_bit(ST_CAPT_STREAM, &fimc->state);
256 dbg("frame: %d, active_buf_cnt: %d",
257 fimc_hw_get_frame_index(fimc), cap->active_buf_cnt);
261 static int start_streaming(struct vb2_queue *q, unsigned int count)
263 struct fimc_ctx *ctx = q->drv_priv;
264 struct fimc_dev *fimc = ctx->fimc_dev;
265 struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
269 vid_cap->frame_count = 0;
271 ret = fimc_capture_hw_init(fimc);
273 fimc_capture_state_cleanup(fimc, false);
277 set_bit(ST_CAPT_PEND, &fimc->state);
279 min_bufs = fimc->vid_cap.reqbufs_count > 1 ? 2 : 1;
281 if (vid_cap->active_buf_cnt >= min_bufs &&
282 !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) {
283 fimc_activate_capture(ctx);
285 if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
286 return fimc_pipeline_call(&vid_cap->ve, set_stream, 1);
292 static void stop_streaming(struct vb2_queue *q)
294 struct fimc_ctx *ctx = q->drv_priv;
295 struct fimc_dev *fimc = ctx->fimc_dev;
297 if (!fimc_capture_active(fimc))
300 fimc_stop_capture(fimc, false);
303 int fimc_capture_suspend(struct fimc_dev *fimc)
305 bool suspend = fimc_capture_busy(fimc);
307 int ret = fimc_stop_capture(fimc, suspend);
310 return fimc_pipeline_call(&fimc->vid_cap.ve, close);
313 static void buffer_queue(struct vb2_buffer *vb);
315 int fimc_capture_resume(struct fimc_dev *fimc)
317 struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
318 struct exynos_video_entity *ve = &vid_cap->ve;
319 struct fimc_vid_buffer *buf;
322 if (!test_and_clear_bit(ST_CAPT_SUSPENDED, &fimc->state))
325 INIT_LIST_HEAD(&fimc->vid_cap.active_buf_q);
326 vid_cap->buf_index = 0;
327 fimc_pipeline_call(ve, open, &ve->vdev.entity, false);
328 fimc_capture_hw_init(fimc);
330 clear_bit(ST_CAPT_SUSPENDED, &fimc->state);
332 for (i = 0; i < vid_cap->reqbufs_count; i++) {
333 if (list_empty(&vid_cap->pending_buf_q))
335 buf = fimc_pending_queue_pop(vid_cap);
336 buffer_queue(&buf->vb.vb2_buf);
342 static int queue_setup(struct vb2_queue *vq,
343 unsigned int *num_buffers, unsigned int *num_planes,
344 unsigned int sizes[], struct device *alloc_devs[])
346 struct fimc_ctx *ctx = vq->drv_priv;
347 struct fimc_frame *frame = &ctx->d_frame;
348 struct fimc_fmt *fmt = frame->fmt;
349 unsigned long wh = frame->f_width * frame->f_height;
356 if (*num_planes != fmt->memplanes)
358 for (i = 0; i < *num_planes; i++)
359 if (sizes[i] < (wh * fmt->depth[i]) / 8)
364 *num_planes = fmt->memplanes;
366 for (i = 0; i < fmt->memplanes; i++) {
367 unsigned int size = (wh * fmt->depth[i]) / 8;
369 if (fimc_fmt_is_user_defined(fmt->color))
370 sizes[i] = frame->payload[i];
372 sizes[i] = max_t(u32, size, frame->payload[i]);
378 static int buffer_prepare(struct vb2_buffer *vb)
380 struct vb2_queue *vq = vb->vb2_queue;
381 struct fimc_ctx *ctx = vq->drv_priv;
384 if (ctx->d_frame.fmt == NULL)
387 for (i = 0; i < ctx->d_frame.fmt->memplanes; i++) {
388 unsigned long size = ctx->d_frame.payload[i];
390 if (vb2_plane_size(vb, i) < size) {
391 v4l2_err(&ctx->fimc_dev->vid_cap.ve.vdev,
392 "User buffer too small (%ld < %ld)\n",
393 vb2_plane_size(vb, i), size);
396 vb2_set_plane_payload(vb, i, size);
402 static void buffer_queue(struct vb2_buffer *vb)
404 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
405 struct fimc_vid_buffer *buf
406 = container_of(vbuf, struct fimc_vid_buffer, vb);
407 struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
408 struct fimc_dev *fimc = ctx->fimc_dev;
409 struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
410 struct exynos_video_entity *ve = &vid_cap->ve;
414 spin_lock_irqsave(&fimc->slock, flags);
415 fimc_prepare_addr(ctx, &buf->vb.vb2_buf, &ctx->d_frame, &buf->paddr);
417 if (!test_bit(ST_CAPT_SUSPENDED, &fimc->state) &&
418 !test_bit(ST_CAPT_STREAM, &fimc->state) &&
419 vid_cap->active_buf_cnt < FIMC_MAX_OUT_BUFS) {
420 /* Setup the buffer directly for processing. */
421 int buf_id = (vid_cap->reqbufs_count == 1) ? -1 :
424 fimc_hw_set_output_addr(fimc, &buf->paddr, buf_id);
425 buf->index = vid_cap->buf_index;
426 fimc_active_queue_add(vid_cap, buf);
428 if (++vid_cap->buf_index >= FIMC_MAX_OUT_BUFS)
429 vid_cap->buf_index = 0;
431 fimc_pending_queue_add(vid_cap, buf);
434 min_bufs = vid_cap->reqbufs_count > 1 ? 2 : 1;
437 if (vb2_is_streaming(&vid_cap->vbq) &&
438 vid_cap->active_buf_cnt >= min_bufs &&
439 !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) {
442 fimc_activate_capture(ctx);
443 spin_unlock_irqrestore(&fimc->slock, flags);
445 if (test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
448 ret = fimc_pipeline_call(ve, set_stream, 1);
450 v4l2_err(&ve->vdev, "stream on failed: %d\n", ret);
453 spin_unlock_irqrestore(&fimc->slock, flags);
456 static const struct vb2_ops fimc_capture_qops = {
457 .queue_setup = queue_setup,
458 .buf_prepare = buffer_prepare,
459 .buf_queue = buffer_queue,
460 .wait_prepare = vb2_ops_wait_prepare,
461 .wait_finish = vb2_ops_wait_finish,
462 .start_streaming = start_streaming,
463 .stop_streaming = stop_streaming,
466 static int fimc_capture_set_default_format(struct fimc_dev *fimc);
468 static int fimc_capture_open(struct file *file)
470 struct fimc_dev *fimc = video_drvdata(file);
471 struct fimc_vid_cap *vc = &fimc->vid_cap;
472 struct exynos_video_entity *ve = &vc->ve;
475 dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
477 mutex_lock(&fimc->lock);
479 if (fimc_m2m_active(fimc))
482 set_bit(ST_CAPT_BUSY, &fimc->state);
483 ret = pm_runtime_get_sync(&fimc->pdev->dev);
487 ret = v4l2_fh_open(file);
489 pm_runtime_put_sync(&fimc->pdev->dev);
493 if (v4l2_fh_is_singular_file(file)) {
494 fimc_md_graph_lock(ve);
496 ret = fimc_pipeline_call(ve, open, &ve->vdev.entity, true);
498 if (ret == 0 && vc->user_subdev_api && vc->inh_sensor_ctrls) {
500 * Recreate controls of the the video node to drop
501 * any controls inherited from the sensor subdev.
503 fimc_ctrls_delete(vc->ctx);
505 ret = fimc_ctrls_create(vc->ctx);
507 vc->inh_sensor_ctrls = false;
510 ve->vdev.entity.use_count++;
512 fimc_md_graph_unlock(ve);
515 ret = fimc_capture_set_default_format(fimc);
518 clear_bit(ST_CAPT_BUSY, &fimc->state);
519 pm_runtime_put_sync(&fimc->pdev->dev);
520 v4l2_fh_release(file);
524 mutex_unlock(&fimc->lock);
528 static int fimc_capture_release(struct file *file)
530 struct fimc_dev *fimc = video_drvdata(file);
531 struct fimc_vid_cap *vc = &fimc->vid_cap;
532 bool close = v4l2_fh_is_singular_file(file);
535 dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
537 mutex_lock(&fimc->lock);
539 if (close && vc->streaming) {
540 media_pipeline_stop(&vc->ve.vdev.entity);
541 vc->streaming = false;
544 ret = _vb2_fop_release(file, NULL);
547 clear_bit(ST_CAPT_BUSY, &fimc->state);
548 fimc_pipeline_call(&vc->ve, close);
549 clear_bit(ST_CAPT_SUSPENDED, &fimc->state);
551 fimc_md_graph_lock(&vc->ve);
552 vc->ve.vdev.entity.use_count--;
553 fimc_md_graph_unlock(&vc->ve);
556 pm_runtime_put_sync(&fimc->pdev->dev);
557 mutex_unlock(&fimc->lock);
562 static const struct v4l2_file_operations fimc_capture_fops = {
563 .owner = THIS_MODULE,
564 .open = fimc_capture_open,
565 .release = fimc_capture_release,
566 .poll = vb2_fop_poll,
567 .unlocked_ioctl = video_ioctl2,
568 .mmap = vb2_fop_mmap,
572 * Format and crop negotiation helpers
575 static struct fimc_fmt *fimc_capture_try_format(struct fimc_ctx *ctx,
576 u32 *width, u32 *height,
577 u32 *code, u32 *fourcc, int pad)
579 bool rotation = ctx->rotation == 90 || ctx->rotation == 270;
580 struct fimc_dev *fimc = ctx->fimc_dev;
581 const struct fimc_variant *var = fimc->variant;
582 const struct fimc_pix_limit *pl = var->pix_limit;
583 struct fimc_frame *dst = &ctx->d_frame;
584 u32 depth, min_w, max_w, min_h, align_h = 3;
585 u32 mask = FMT_FLAGS_CAM;
586 struct fimc_fmt *ffmt;
588 /* Conversion from/to JPEG or User Defined format is not supported */
589 if (code && ctx->s_frame.fmt && pad == FIMC_SD_PAD_SOURCE &&
590 fimc_fmt_is_user_defined(ctx->s_frame.fmt->color))
591 *code = ctx->s_frame.fmt->mbus_code;
593 if (fourcc && *fourcc != V4L2_PIX_FMT_JPEG && pad == FIMC_SD_PAD_SOURCE)
594 mask |= FMT_FLAGS_M2M;
596 if (pad == FIMC_SD_PAD_SINK_FIFO)
597 mask = FMT_FLAGS_WRITEBACK;
599 ffmt = fimc_find_format(fourcc, code, mask, 0);
604 *code = ffmt->mbus_code;
606 *fourcc = ffmt->fourcc;
608 if (pad != FIMC_SD_PAD_SOURCE) {
609 max_w = fimc_fmt_is_user_defined(ffmt->color) ?
610 pl->scaler_dis_w : pl->scaler_en_w;
611 /* Apply the camera input interface pixel constraints */
612 v4l_bound_align_image(width, max_t(u32, *width, 32), max_w, 4,
613 height, max_t(u32, *height, 32),
614 FIMC_CAMIF_MAX_HEIGHT,
615 fimc_fmt_is_user_defined(ffmt->color) ?
620 /* Can't scale or crop in transparent (JPEG) transfer mode */
621 if (fimc_fmt_is_user_defined(ffmt->color)) {
622 *width = ctx->s_frame.f_width;
623 *height = ctx->s_frame.f_height;
626 /* Apply the scaler and the output DMA constraints */
627 max_w = rotation ? pl->out_rot_en_w : pl->out_rot_dis_w;
628 if (ctx->state & FIMC_COMPOSE) {
629 min_w = dst->offs_h + dst->width;
630 min_h = dst->offs_v + dst->height;
632 min_w = var->min_out_pixsize;
633 min_h = var->min_out_pixsize;
635 if (var->min_vsize_align == 1 && !rotation)
636 align_h = fimc_fmt_is_rgb(ffmt->color) ? 0 : 1;
638 depth = fimc_get_format_depth(ffmt);
639 v4l_bound_align_image(width, min_w, max_w,
640 ffs(var->min_out_pixsize) - 1,
641 height, min_h, FIMC_CAMIF_MAX_HEIGHT,
643 64/(ALIGN(depth, 8)));
645 dbg("pad%d: code: 0x%x, %dx%d. dst fmt: %dx%d",
646 pad, code ? *code : 0, *width, *height,
647 dst->f_width, dst->f_height);
652 static void fimc_capture_try_selection(struct fimc_ctx *ctx,
656 bool rotate = ctx->rotation == 90 || ctx->rotation == 270;
657 struct fimc_dev *fimc = ctx->fimc_dev;
658 const struct fimc_variant *var = fimc->variant;
659 const struct fimc_pix_limit *pl = var->pix_limit;
660 struct fimc_frame *sink = &ctx->s_frame;
661 u32 max_w, max_h, min_w = 0, min_h = 0, min_sz;
662 u32 align_sz = 0, align_h = 4;
663 u32 max_sc_h, max_sc_v;
665 /* In JPEG transparent transfer mode cropping is not supported */
666 if (fimc_fmt_is_user_defined(ctx->d_frame.fmt->color)) {
667 r->width = sink->f_width;
668 r->height = sink->f_height;
669 r->left = r->top = 0;
672 if (target == V4L2_SEL_TGT_COMPOSE) {
673 u32 tmp_min_h = ffs(sink->width) - 3;
674 u32 tmp_min_v = ffs(sink->height) - 1;
676 if (ctx->rotation != 90 && ctx->rotation != 270)
678 max_sc_h = min(SCALER_MAX_HRATIO, 1 << tmp_min_h);
679 max_sc_v = min(SCALER_MAX_VRATIO, 1 << tmp_min_v);
680 min_sz = var->min_out_pixsize;
682 u32 depth = fimc_get_format_depth(sink->fmt);
683 align_sz = 64/ALIGN(depth, 8);
684 min_sz = var->min_inp_pixsize;
685 min_w = min_h = min_sz;
686 max_sc_h = max_sc_v = 1;
689 * For the compose rectangle the following constraints must be met:
690 * - it must fit in the sink pad format rectangle (f_width/f_height);
691 * - maximum downscaling ratio is 64;
692 * - maximum crop size depends if the rotator is used or not;
693 * - the sink pad format width/height must be 4 multiple of the
694 * prescaler ratios determined by sink pad size and source pad crop,
695 * the prescaler ratio is returned by fimc_get_scaler_factor().
698 rotate ? pl->out_rot_en_w : pl->out_rot_dis_w,
699 rotate ? sink->f_height : sink->f_width);
700 max_h = min_t(u32, FIMC_CAMIF_MAX_HEIGHT, sink->f_height);
702 if (target == V4L2_SEL_TGT_COMPOSE) {
703 min_w = min_t(u32, max_w, sink->f_width / max_sc_h);
704 min_h = min_t(u32, max_h, sink->f_height / max_sc_v);
706 swap(max_sc_h, max_sc_v);
710 v4l_bound_align_image(&r->width, min_w, max_w, ffs(min_sz) - 1,
711 &r->height, min_h, max_h, align_h,
713 /* Adjust left/top if crop/compose rectangle is out of bounds */
714 r->left = clamp_t(u32, r->left, 0, sink->f_width - r->width);
715 r->top = clamp_t(u32, r->top, 0, sink->f_height - r->height);
716 r->left = round_down(r->left, var->hor_offs_align);
718 dbg("target %#x: (%d,%d)/%dx%d, sink fmt: %dx%d",
719 target, r->left, r->top, r->width, r->height,
720 sink->f_width, sink->f_height);
724 * The video node ioctl operations
726 static int fimc_cap_querycap(struct file *file, void *priv,
727 struct v4l2_capability *cap)
729 struct fimc_dev *fimc = video_drvdata(file);
731 __fimc_vidioc_querycap(&fimc->pdev->dev, cap, V4L2_CAP_STREAMING |
732 V4L2_CAP_VIDEO_CAPTURE_MPLANE);
736 static int fimc_cap_enum_fmt_mplane(struct file *file, void *priv,
737 struct v4l2_fmtdesc *f)
739 struct fimc_fmt *fmt;
741 fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM | FMT_FLAGS_M2M,
745 strncpy(f->description, fmt->name, sizeof(f->description) - 1);
746 f->pixelformat = fmt->fourcc;
747 if (fmt->fourcc == MEDIA_BUS_FMT_JPEG_1X8)
748 f->flags |= V4L2_FMT_FLAG_COMPRESSED;
752 static struct media_entity *fimc_pipeline_get_head(struct media_entity *me)
754 struct media_pad *pad = &me->pads[0];
756 while (!(pad->flags & MEDIA_PAD_FL_SOURCE)) {
757 pad = media_entity_remote_pad(pad);
768 * fimc_pipeline_try_format - negotiate and/or set formats at pipeline
770 * @ctx: FIMC capture context
771 * @tfmt: media bus format to try/set on subdevs
772 * @fmt_id: fimc pixel format id corresponding to returned @tfmt (output)
773 * @set: true to set format on subdevs, false to try only
775 static int fimc_pipeline_try_format(struct fimc_ctx *ctx,
776 struct v4l2_mbus_framefmt *tfmt,
777 struct fimc_fmt **fmt_id,
780 struct fimc_dev *fimc = ctx->fimc_dev;
781 struct fimc_pipeline *p = to_fimc_pipeline(fimc->vid_cap.ve.pipe);
782 struct v4l2_subdev *sd = p->subdevs[IDX_SENSOR];
783 struct v4l2_subdev_format sfmt;
784 struct v4l2_mbus_framefmt *mf = &sfmt.format;
785 struct media_entity *me;
786 struct fimc_fmt *ffmt;
787 struct media_pad *pad;
791 if (WARN_ON(!sd || !tfmt))
794 memset(&sfmt, 0, sizeof(sfmt));
796 sfmt.which = set ? V4L2_SUBDEV_FORMAT_ACTIVE : V4L2_SUBDEV_FORMAT_TRY;
798 me = fimc_pipeline_get_head(&sd->entity);
801 ffmt = fimc_find_format(NULL, mf->code != 0 ? &mf->code : NULL,
805 * Notify user-space if common pixel code for
806 * host and sensor does not exist.
810 mf->code = tfmt->code = ffmt->mbus_code;
812 /* set format on all pipeline subdevs */
813 while (me != &fimc->vid_cap.subdev.entity) {
814 sd = media_entity_to_v4l2_subdev(me);
817 ret = v4l2_subdev_call(sd, pad, set_fmt, NULL, &sfmt);
821 if (me->pads[0].flags & MEDIA_PAD_FL_SINK) {
822 sfmt.pad = me->num_pads - 1;
823 mf->code = tfmt->code;
824 ret = v4l2_subdev_call(sd, pad, set_fmt, NULL,
830 pad = media_entity_remote_pad(&me->pads[sfmt.pad]);
836 if (mf->code != tfmt->code)
840 tfmt->width = mf->width;
841 tfmt->height = mf->height;
842 ffmt = fimc_capture_try_format(ctx, &tfmt->width, &tfmt->height,
843 NULL, &fcc, FIMC_SD_PAD_SINK_CAM);
844 ffmt = fimc_capture_try_format(ctx, &tfmt->width, &tfmt->height,
845 NULL, &fcc, FIMC_SD_PAD_SOURCE);
846 if (ffmt && ffmt->mbus_code)
847 mf->code = ffmt->mbus_code;
848 if (mf->width != tfmt->width || mf->height != tfmt->height)
850 tfmt->code = mf->code;
862 * fimc_get_sensor_frame_desc - query the sensor for media bus frame parameters
863 * @sensor: pointer to the sensor subdev
864 * @plane_fmt: provides plane sizes corresponding to the frame layout entries
865 * @num_planes: number of planes
866 * @try: true to set the frame parameters, false to query only
868 * This function is used by this driver only for compressed/blob data formats.
870 static int fimc_get_sensor_frame_desc(struct v4l2_subdev *sensor,
871 struct v4l2_plane_pix_format *plane_fmt,
872 unsigned int num_planes, bool try)
874 struct v4l2_mbus_frame_desc fd;
878 for (i = 0; i < num_planes; i++)
879 fd.entry[i].length = plane_fmt[i].sizeimage;
881 pad = sensor->entity.num_pads - 1;
883 ret = v4l2_subdev_call(sensor, pad, set_frame_desc, pad, &fd);
885 ret = v4l2_subdev_call(sensor, pad, get_frame_desc, pad, &fd);
890 if (num_planes != fd.num_entries)
893 for (i = 0; i < num_planes; i++)
894 plane_fmt[i].sizeimage = fd.entry[i].length;
896 if (fd.entry[0].length > FIMC_MAX_JPEG_BUF_SIZE) {
897 v4l2_err(sensor->v4l2_dev, "Unsupported buffer size: %u\n",
906 static int fimc_cap_g_fmt_mplane(struct file *file, void *fh,
907 struct v4l2_format *f)
909 struct fimc_dev *fimc = video_drvdata(file);
911 __fimc_get_format(&fimc->vid_cap.ctx->d_frame, f);
916 * Try or set format on the fimc.X.capture video node and additionally
917 * on the whole pipeline if @try is false.
918 * Locking: the caller must _not_ hold the graph mutex.
920 static int __video_try_or_set_format(struct fimc_dev *fimc,
921 struct v4l2_format *f, bool try,
922 struct fimc_fmt **inp_fmt,
923 struct fimc_fmt **out_fmt)
925 struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
926 struct fimc_vid_cap *vc = &fimc->vid_cap;
927 struct exynos_video_entity *ve = &vc->ve;
928 struct fimc_ctx *ctx = vc->ctx;
929 unsigned int width = 0, height = 0;
932 /* Pre-configure format at the camera input interface, for JPEG only */
933 if (fimc_jpeg_fourcc(pix->pixelformat)) {
934 fimc_capture_try_format(ctx, &pix->width, &pix->height,
935 NULL, &pix->pixelformat,
936 FIMC_SD_PAD_SINK_CAM);
939 height = pix->height;
941 ctx->s_frame.f_width = pix->width;
942 ctx->s_frame.f_height = pix->height;
946 /* Try the format at the scaler and the DMA output */
947 *out_fmt = fimc_capture_try_format(ctx, &pix->width, &pix->height,
948 NULL, &pix->pixelformat,
950 if (*out_fmt == NULL)
953 /* Restore image width/height for JPEG (no resizing supported). */
954 if (try && fimc_jpeg_fourcc(pix->pixelformat)) {
956 pix->height = height;
959 /* Try to match format at the host and the sensor */
960 if (!vc->user_subdev_api) {
961 struct v4l2_mbus_framefmt mbus_fmt;
962 struct v4l2_mbus_framefmt *mf;
964 mf = try ? &mbus_fmt : &fimc->vid_cap.ci_fmt;
966 mf->code = (*out_fmt)->mbus_code;
967 mf->width = pix->width;
968 mf->height = pix->height;
970 fimc_md_graph_lock(ve);
971 ret = fimc_pipeline_try_format(ctx, mf, inp_fmt, try);
972 fimc_md_graph_unlock(ve);
977 pix->width = mf->width;
978 pix->height = mf->height;
981 fimc_adjust_mplane_format(*out_fmt, pix->width, pix->height, pix);
983 if ((*out_fmt)->flags & FMT_FLAGS_COMPRESSED) {
984 struct v4l2_subdev *sensor;
986 fimc_md_graph_lock(ve);
988 sensor = __fimc_md_get_subdev(ve->pipe, IDX_SENSOR);
990 fimc_get_sensor_frame_desc(sensor, pix->plane_fmt,
991 (*out_fmt)->memplanes, try);
995 fimc_md_graph_unlock(ve);
1001 static int fimc_cap_try_fmt_mplane(struct file *file, void *fh,
1002 struct v4l2_format *f)
1004 struct fimc_dev *fimc = video_drvdata(file);
1005 struct fimc_fmt *out_fmt = NULL, *inp_fmt = NULL;
1007 return __video_try_or_set_format(fimc, f, true, &inp_fmt, &out_fmt);
1010 static void fimc_capture_mark_jpeg_xfer(struct fimc_ctx *ctx,
1011 enum fimc_color_fmt color)
1013 bool jpeg = fimc_fmt_is_user_defined(color);
1015 ctx->scaler.enabled = !jpeg;
1016 fimc_ctrls_activate(ctx, !jpeg);
1019 set_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state);
1021 clear_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state);
1024 static int __fimc_capture_set_format(struct fimc_dev *fimc,
1025 struct v4l2_format *f)
1027 struct fimc_vid_cap *vc = &fimc->vid_cap;
1028 struct fimc_ctx *ctx = vc->ctx;
1029 struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
1030 struct fimc_frame *ff = &ctx->d_frame;
1031 struct fimc_fmt *inp_fmt = NULL;
1034 if (vb2_is_busy(&fimc->vid_cap.vbq))
1037 ret = __video_try_or_set_format(fimc, f, false, &inp_fmt, &ff->fmt);
1041 /* Update RGB Alpha control state and value range */
1042 fimc_alpha_ctrl_update(ctx);
1044 for (i = 0; i < ff->fmt->memplanes; i++) {
1045 ff->bytesperline[i] = pix->plane_fmt[i].bytesperline;
1046 ff->payload[i] = pix->plane_fmt[i].sizeimage;
1049 set_frame_bounds(ff, pix->width, pix->height);
1050 /* Reset the composition rectangle if not yet configured */
1051 if (!(ctx->state & FIMC_COMPOSE))
1052 set_frame_crop(ff, 0, 0, pix->width, pix->height);
1054 fimc_capture_mark_jpeg_xfer(ctx, ff->fmt->color);
1056 /* Reset cropping and set format at the camera interface input */
1057 if (!vc->user_subdev_api) {
1058 ctx->s_frame.fmt = inp_fmt;
1059 set_frame_bounds(&ctx->s_frame, pix->width, pix->height);
1060 set_frame_crop(&ctx->s_frame, 0, 0, pix->width, pix->height);
1066 static int fimc_cap_s_fmt_mplane(struct file *file, void *priv,
1067 struct v4l2_format *f)
1069 struct fimc_dev *fimc = video_drvdata(file);
1071 return __fimc_capture_set_format(fimc, f);
1074 static int fimc_cap_enum_input(struct file *file, void *priv,
1075 struct v4l2_input *i)
1077 struct fimc_dev *fimc = video_drvdata(file);
1078 struct exynos_video_entity *ve = &fimc->vid_cap.ve;
1079 struct v4l2_subdev *sd;
1084 i->type = V4L2_INPUT_TYPE_CAMERA;
1085 fimc_md_graph_lock(ve);
1086 sd = __fimc_md_get_subdev(ve->pipe, IDX_SENSOR);
1087 fimc_md_graph_unlock(ve);
1090 strlcpy(i->name, sd->name, sizeof(i->name));
1095 static int fimc_cap_s_input(struct file *file, void *priv, unsigned int i)
1097 return i == 0 ? i : -EINVAL;
1100 static int fimc_cap_g_input(struct file *file, void *priv, unsigned int *i)
1107 * fimc_pipeline_validate - check for formats inconsistencies
1108 * between source and sink pad of each link
1109 * @fimc: the FIMC device this context applies to
1111 * Return 0 if all formats match or -EPIPE otherwise.
1113 static int fimc_pipeline_validate(struct fimc_dev *fimc)
1115 struct v4l2_subdev_format sink_fmt, src_fmt;
1116 struct fimc_vid_cap *vc = &fimc->vid_cap;
1117 struct v4l2_subdev *sd = &vc->subdev;
1118 struct fimc_pipeline *p = to_fimc_pipeline(vc->ve.pipe);
1119 struct media_pad *sink_pad, *src_pad;
1124 * Find current entity sink pad and any remote sink pad linked
1125 * to it. We stop if there is no sink pad in current entity or
1126 * it is not linked to any other remote entity.
1130 for (i = 0; i < sd->entity.num_pads; i++) {
1131 struct media_pad *p = &sd->entity.pads[i];
1133 if (p->flags & MEDIA_PAD_FL_SINK) {
1135 src_pad = media_entity_remote_pad(sink_pad);
1141 if (!src_pad || !is_media_entity_v4l2_subdev(src_pad->entity))
1144 /* Don't call FIMC subdev operation to avoid nested locking */
1145 if (sd == &vc->subdev) {
1146 struct fimc_frame *ff = &vc->ctx->s_frame;
1147 sink_fmt.format.width = ff->f_width;
1148 sink_fmt.format.height = ff->f_height;
1149 sink_fmt.format.code = ff->fmt ? ff->fmt->mbus_code : 0;
1151 sink_fmt.pad = sink_pad->index;
1152 sink_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
1153 ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sink_fmt);
1154 if (ret < 0 && ret != -ENOIOCTLCMD)
1158 /* Retrieve format at the source pad */
1159 sd = media_entity_to_v4l2_subdev(src_pad->entity);
1160 src_fmt.pad = src_pad->index;
1161 src_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
1162 ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &src_fmt);
1163 if (ret < 0 && ret != -ENOIOCTLCMD)
1166 if (src_fmt.format.width != sink_fmt.format.width ||
1167 src_fmt.format.height != sink_fmt.format.height ||
1168 src_fmt.format.code != sink_fmt.format.code)
1171 if (sd == p->subdevs[IDX_SENSOR] &&
1172 fimc_user_defined_mbus_fmt(src_fmt.format.code)) {
1173 struct v4l2_plane_pix_format plane_fmt[FIMC_MAX_PLANES];
1174 struct fimc_frame *frame = &vc->ctx->d_frame;
1177 ret = fimc_get_sensor_frame_desc(sd, plane_fmt,
1178 frame->fmt->memplanes,
1183 for (i = 0; i < frame->fmt->memplanes; i++)
1184 if (frame->payload[i] < plane_fmt[i].sizeimage)
1191 static int fimc_cap_streamon(struct file *file, void *priv,
1192 enum v4l2_buf_type type)
1194 struct fimc_dev *fimc = video_drvdata(file);
1195 struct fimc_vid_cap *vc = &fimc->vid_cap;
1196 struct media_entity *entity = &vc->ve.vdev.entity;
1197 struct fimc_source_info *si = NULL;
1198 struct v4l2_subdev *sd;
1201 if (fimc_capture_active(fimc))
1204 ret = media_pipeline_start(entity, &vc->ve.pipe->mp);
1208 sd = __fimc_md_get_subdev(vc->ve.pipe, IDX_SENSOR);
1210 si = v4l2_get_subdev_hostdata(sd);
1217 * Save configuration data related to currently attached image
1218 * sensor or other data source, e.g. FIMC-IS.
1220 vc->source_config = *si;
1222 if (vc->input == GRP_ID_FIMC_IS)
1223 vc->source_config.fimc_bus_type = FIMC_BUS_TYPE_ISP_WRITEBACK;
1225 if (vc->user_subdev_api) {
1226 ret = fimc_pipeline_validate(fimc);
1231 ret = vb2_ioctl_streamon(file, priv, type);
1233 vc->streaming = true;
1238 media_pipeline_stop(entity);
1242 static int fimc_cap_streamoff(struct file *file, void *priv,
1243 enum v4l2_buf_type type)
1245 struct fimc_dev *fimc = video_drvdata(file);
1246 struct fimc_vid_cap *vc = &fimc->vid_cap;
1249 ret = vb2_ioctl_streamoff(file, priv, type);
1253 media_pipeline_stop(&vc->ve.vdev.entity);
1254 vc->streaming = false;
1258 static int fimc_cap_reqbufs(struct file *file, void *priv,
1259 struct v4l2_requestbuffers *reqbufs)
1261 struct fimc_dev *fimc = video_drvdata(file);
1264 ret = vb2_ioctl_reqbufs(file, priv, reqbufs);
1267 fimc->vid_cap.reqbufs_count = reqbufs->count;
1272 static int fimc_cap_g_selection(struct file *file, void *fh,
1273 struct v4l2_selection *s)
1275 struct fimc_dev *fimc = video_drvdata(file);
1276 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1277 struct fimc_frame *f = &ctx->s_frame;
1279 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1282 switch (s->target) {
1283 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
1284 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
1287 case V4L2_SEL_TGT_CROP_BOUNDS:
1288 case V4L2_SEL_TGT_CROP_DEFAULT:
1291 s->r.width = f->o_width;
1292 s->r.height = f->o_height;
1295 case V4L2_SEL_TGT_COMPOSE:
1298 case V4L2_SEL_TGT_CROP:
1299 s->r.left = f->offs_h;
1300 s->r.top = f->offs_v;
1301 s->r.width = f->width;
1302 s->r.height = f->height;
1309 /* Return 1 if rectangle a is enclosed in rectangle b, or 0 otherwise. */
1310 static int enclosed_rectangle(struct v4l2_rect *a, struct v4l2_rect *b)
1312 if (a->left < b->left || a->top < b->top)
1314 if (a->left + a->width > b->left + b->width)
1316 if (a->top + a->height > b->top + b->height)
1322 static int fimc_cap_s_selection(struct file *file, void *fh,
1323 struct v4l2_selection *s)
1325 struct fimc_dev *fimc = video_drvdata(file);
1326 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1327 struct v4l2_rect rect = s->r;
1328 struct fimc_frame *f;
1329 unsigned long flags;
1331 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1334 if (s->target == V4L2_SEL_TGT_COMPOSE)
1336 else if (s->target == V4L2_SEL_TGT_CROP)
1341 fimc_capture_try_selection(ctx, &rect, s->target);
1343 if (s->flags & V4L2_SEL_FLAG_LE &&
1344 !enclosed_rectangle(&rect, &s->r))
1347 if (s->flags & V4L2_SEL_FLAG_GE &&
1348 !enclosed_rectangle(&s->r, &rect))
1352 spin_lock_irqsave(&fimc->slock, flags);
1353 set_frame_crop(f, s->r.left, s->r.top, s->r.width,
1355 spin_unlock_irqrestore(&fimc->slock, flags);
1357 set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
1361 static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops = {
1362 .vidioc_querycap = fimc_cap_querycap,
1364 .vidioc_enum_fmt_vid_cap_mplane = fimc_cap_enum_fmt_mplane,
1365 .vidioc_try_fmt_vid_cap_mplane = fimc_cap_try_fmt_mplane,
1366 .vidioc_s_fmt_vid_cap_mplane = fimc_cap_s_fmt_mplane,
1367 .vidioc_g_fmt_vid_cap_mplane = fimc_cap_g_fmt_mplane,
1369 .vidioc_reqbufs = fimc_cap_reqbufs,
1370 .vidioc_querybuf = vb2_ioctl_querybuf,
1371 .vidioc_qbuf = vb2_ioctl_qbuf,
1372 .vidioc_dqbuf = vb2_ioctl_dqbuf,
1373 .vidioc_expbuf = vb2_ioctl_expbuf,
1374 .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
1375 .vidioc_create_bufs = vb2_ioctl_create_bufs,
1377 .vidioc_streamon = fimc_cap_streamon,
1378 .vidioc_streamoff = fimc_cap_streamoff,
1380 .vidioc_g_selection = fimc_cap_g_selection,
1381 .vidioc_s_selection = fimc_cap_s_selection,
1383 .vidioc_enum_input = fimc_cap_enum_input,
1384 .vidioc_s_input = fimc_cap_s_input,
1385 .vidioc_g_input = fimc_cap_g_input,
1388 /* Capture subdev media entity operations */
1389 static int fimc_link_setup(struct media_entity *entity,
1390 const struct media_pad *local,
1391 const struct media_pad *remote, u32 flags)
1393 struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
1394 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1395 struct fimc_vid_cap *vc = &fimc->vid_cap;
1396 struct v4l2_subdev *sensor;
1398 if (!is_media_entity_v4l2_subdev(remote->entity))
1401 if (WARN_ON(fimc == NULL))
1404 dbg("%s --> %s, flags: 0x%x. input: 0x%x",
1405 local->entity->name, remote->entity->name, flags,
1406 fimc->vid_cap.input);
1408 if (!(flags & MEDIA_LNK_FL_ENABLED)) {
1409 fimc->vid_cap.input = 0;
1416 vc->input = sd->grp_id;
1418 if (vc->user_subdev_api || vc->inh_sensor_ctrls)
1421 /* Inherit V4L2 controls from the image sensor subdev. */
1422 sensor = fimc_find_remote_sensor(&vc->subdev.entity);
1426 return v4l2_ctrl_add_handler(&vc->ctx->ctrls.handler,
1427 sensor->ctrl_handler, NULL);
1430 static const struct media_entity_operations fimc_sd_media_ops = {
1431 .link_setup = fimc_link_setup,
1435 * fimc_sensor_notify - v4l2_device notification from a sensor subdev
1436 * @sd: pointer to a subdev generating the notification
1437 * @notification: the notification type, must be S5P_FIMC_TX_END_NOTIFY
1438 * @arg: pointer to an u32 type integer that stores the frame payload value
1440 * The End Of Frame notification sent by sensor subdev in its still capture
1441 * mode. If there is only a single VSYNC generated by the sensor at the
1442 * beginning of a frame transmission, FIMC does not issue the LastIrq
1443 * (end of frame) interrupt. And this notification is used to complete the
1444 * frame capture and returning a buffer to user-space. Subdev drivers should
1445 * call this notification from their last 'End of frame capture' interrupt.
1447 void fimc_sensor_notify(struct v4l2_subdev *sd, unsigned int notification,
1450 struct fimc_source_info *si;
1451 struct fimc_vid_buffer *buf;
1452 struct fimc_md *fmd;
1453 struct fimc_dev *fimc;
1454 unsigned long flags;
1459 si = v4l2_get_subdev_hostdata(sd);
1460 fmd = entity_to_fimc_mdev(&sd->entity);
1462 spin_lock_irqsave(&fmd->slock, flags);
1464 fimc = si ? source_to_sensor_info(si)->host : NULL;
1466 if (fimc && arg && notification == S5P_FIMC_TX_END_NOTIFY &&
1467 test_bit(ST_CAPT_PEND, &fimc->state)) {
1468 unsigned long irq_flags;
1469 spin_lock_irqsave(&fimc->slock, irq_flags);
1470 if (!list_empty(&fimc->vid_cap.active_buf_q)) {
1471 buf = list_entry(fimc->vid_cap.active_buf_q.next,
1472 struct fimc_vid_buffer, list);
1473 vb2_set_plane_payload(&buf->vb.vb2_buf, 0,
1476 fimc_capture_irq_handler(fimc, 1);
1477 fimc_deactivate_capture(fimc);
1478 spin_unlock_irqrestore(&fimc->slock, irq_flags);
1480 spin_unlock_irqrestore(&fmd->slock, flags);
1483 static int fimc_subdev_enum_mbus_code(struct v4l2_subdev *sd,
1484 struct v4l2_subdev_pad_config *cfg,
1485 struct v4l2_subdev_mbus_code_enum *code)
1487 struct fimc_fmt *fmt;
1489 fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, code->index);
1492 code->code = fmt->mbus_code;
1496 static int fimc_subdev_get_fmt(struct v4l2_subdev *sd,
1497 struct v4l2_subdev_pad_config *cfg,
1498 struct v4l2_subdev_format *fmt)
1500 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1501 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1502 struct fimc_frame *ff = &ctx->s_frame;
1503 struct v4l2_mbus_framefmt *mf;
1505 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
1506 mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
1512 mutex_lock(&fimc->lock);
1515 case FIMC_SD_PAD_SOURCE:
1516 if (!WARN_ON(ff->fmt == NULL))
1517 mf->code = ff->fmt->mbus_code;
1518 /* Sink pads crop rectangle size */
1519 mf->width = ff->width;
1520 mf->height = ff->height;
1522 case FIMC_SD_PAD_SINK_FIFO:
1523 *mf = fimc->vid_cap.wb_fmt;
1525 case FIMC_SD_PAD_SINK_CAM:
1527 *mf = fimc->vid_cap.ci_fmt;
1531 mutex_unlock(&fimc->lock);
1532 mf->colorspace = V4L2_COLORSPACE_JPEG;
1537 static int fimc_subdev_set_fmt(struct v4l2_subdev *sd,
1538 struct v4l2_subdev_pad_config *cfg,
1539 struct v4l2_subdev_format *fmt)
1541 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1542 struct v4l2_mbus_framefmt *mf = &fmt->format;
1543 struct fimc_vid_cap *vc = &fimc->vid_cap;
1544 struct fimc_ctx *ctx = vc->ctx;
1545 struct fimc_frame *ff;
1546 struct fimc_fmt *ffmt;
1548 dbg("pad%d: code: 0x%x, %dx%d",
1549 fmt->pad, mf->code, mf->width, mf->height);
1551 if (fmt->pad == FIMC_SD_PAD_SOURCE && vb2_is_busy(&vc->vbq))
1554 mutex_lock(&fimc->lock);
1555 ffmt = fimc_capture_try_format(ctx, &mf->width, &mf->height,
1556 &mf->code, NULL, fmt->pad);
1557 mutex_unlock(&fimc->lock);
1558 mf->colorspace = V4L2_COLORSPACE_JPEG;
1560 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
1561 mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
1565 /* There must be a bug in the driver if this happens */
1566 if (WARN_ON(ffmt == NULL))
1569 /* Update RGB Alpha control state and value range */
1570 fimc_alpha_ctrl_update(ctx);
1572 fimc_capture_mark_jpeg_xfer(ctx, ffmt->color);
1573 if (fmt->pad == FIMC_SD_PAD_SOURCE) {
1575 /* Sink pads crop rectangle size */
1576 mf->width = ctx->s_frame.width;
1577 mf->height = ctx->s_frame.height;
1582 mutex_lock(&fimc->lock);
1583 set_frame_bounds(ff, mf->width, mf->height);
1585 if (fmt->pad == FIMC_SD_PAD_SINK_FIFO)
1587 else if (fmt->pad == FIMC_SD_PAD_SINK_CAM)
1592 /* Reset the crop rectangle if required. */
1593 if (!(fmt->pad == FIMC_SD_PAD_SOURCE && (ctx->state & FIMC_COMPOSE)))
1594 set_frame_crop(ff, 0, 0, mf->width, mf->height);
1596 if (fmt->pad != FIMC_SD_PAD_SOURCE)
1597 ctx->state &= ~FIMC_COMPOSE;
1599 mutex_unlock(&fimc->lock);
1603 static int fimc_subdev_get_selection(struct v4l2_subdev *sd,
1604 struct v4l2_subdev_pad_config *cfg,
1605 struct v4l2_subdev_selection *sel)
1607 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1608 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1609 struct fimc_frame *f = &ctx->s_frame;
1610 struct v4l2_rect *r = &sel->r;
1611 struct v4l2_rect *try_sel;
1613 if (sel->pad == FIMC_SD_PAD_SOURCE)
1616 mutex_lock(&fimc->lock);
1618 switch (sel->target) {
1619 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
1622 case V4L2_SEL_TGT_CROP_BOUNDS:
1623 r->width = f->o_width;
1624 r->height = f->o_height;
1627 mutex_unlock(&fimc->lock);
1630 case V4L2_SEL_TGT_CROP:
1631 try_sel = v4l2_subdev_get_try_crop(sd, cfg, sel->pad);
1633 case V4L2_SEL_TGT_COMPOSE:
1634 try_sel = v4l2_subdev_get_try_compose(sd, cfg, sel->pad);
1638 mutex_unlock(&fimc->lock);
1642 if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {
1645 r->left = f->offs_h;
1647 r->width = f->width;
1648 r->height = f->height;
1651 dbg("target %#x: l:%d, t:%d, %dx%d, f_w: %d, f_h: %d",
1652 sel->pad, r->left, r->top, r->width, r->height,
1653 f->f_width, f->f_height);
1655 mutex_unlock(&fimc->lock);
1659 static int fimc_subdev_set_selection(struct v4l2_subdev *sd,
1660 struct v4l2_subdev_pad_config *cfg,
1661 struct v4l2_subdev_selection *sel)
1663 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1664 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1665 struct fimc_frame *f = &ctx->s_frame;
1666 struct v4l2_rect *r = &sel->r;
1667 struct v4l2_rect *try_sel;
1668 unsigned long flags;
1670 if (sel->pad == FIMC_SD_PAD_SOURCE)
1673 mutex_lock(&fimc->lock);
1674 fimc_capture_try_selection(ctx, r, V4L2_SEL_TGT_CROP);
1676 switch (sel->target) {
1677 case V4L2_SEL_TGT_CROP:
1678 try_sel = v4l2_subdev_get_try_crop(sd, cfg, sel->pad);
1680 case V4L2_SEL_TGT_COMPOSE:
1681 try_sel = v4l2_subdev_get_try_compose(sd, cfg, sel->pad);
1685 mutex_unlock(&fimc->lock);
1689 if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {
1692 spin_lock_irqsave(&fimc->slock, flags);
1693 set_frame_crop(f, r->left, r->top, r->width, r->height);
1694 set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
1695 if (sel->target == V4L2_SEL_TGT_COMPOSE)
1696 ctx->state |= FIMC_COMPOSE;
1697 spin_unlock_irqrestore(&fimc->slock, flags);
1700 dbg("target %#x: (%d,%d)/%dx%d", sel->target, r->left, r->top,
1701 r->width, r->height);
1703 mutex_unlock(&fimc->lock);
1707 static const struct v4l2_subdev_pad_ops fimc_subdev_pad_ops = {
1708 .enum_mbus_code = fimc_subdev_enum_mbus_code,
1709 .get_selection = fimc_subdev_get_selection,
1710 .set_selection = fimc_subdev_set_selection,
1711 .get_fmt = fimc_subdev_get_fmt,
1712 .set_fmt = fimc_subdev_set_fmt,
1715 static const struct v4l2_subdev_ops fimc_subdev_ops = {
1716 .pad = &fimc_subdev_pad_ops,
1719 /* Set default format at the sensor and host interface */
1720 static int fimc_capture_set_default_format(struct fimc_dev *fimc)
1722 struct v4l2_format fmt = {
1723 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
1725 .width = FIMC_DEFAULT_WIDTH,
1726 .height = FIMC_DEFAULT_HEIGHT,
1727 .pixelformat = V4L2_PIX_FMT_YUYV,
1728 .field = V4L2_FIELD_NONE,
1729 .colorspace = V4L2_COLORSPACE_JPEG,
1733 return __fimc_capture_set_format(fimc, &fmt);
1736 /* fimc->lock must be already initialized */
1737 static int fimc_register_capture_device(struct fimc_dev *fimc,
1738 struct v4l2_device *v4l2_dev)
1740 struct video_device *vfd = &fimc->vid_cap.ve.vdev;
1741 struct vb2_queue *q = &fimc->vid_cap.vbq;
1742 struct fimc_ctx *ctx;
1743 struct fimc_vid_cap *vid_cap;
1744 struct fimc_fmt *fmt;
1747 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
1751 ctx->fimc_dev = fimc;
1752 ctx->in_path = FIMC_IO_CAMERA;
1753 ctx->out_path = FIMC_IO_DMA;
1754 ctx->state = FIMC_CTX_CAP;
1755 ctx->s_frame.fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0);
1756 ctx->d_frame.fmt = ctx->s_frame.fmt;
1758 memset(vfd, 0, sizeof(*vfd));
1759 snprintf(vfd->name, sizeof(vfd->name), "fimc.%d.capture", fimc->id);
1761 vfd->fops = &fimc_capture_fops;
1762 vfd->ioctl_ops = &fimc_capture_ioctl_ops;
1763 vfd->v4l2_dev = v4l2_dev;
1765 vfd->release = video_device_release_empty;
1767 vfd->lock = &fimc->lock;
1769 video_set_drvdata(vfd, fimc);
1770 vid_cap = &fimc->vid_cap;
1771 vid_cap->active_buf_cnt = 0;
1772 vid_cap->reqbufs_count = 0;
1775 INIT_LIST_HEAD(&vid_cap->pending_buf_q);
1776 INIT_LIST_HEAD(&vid_cap->active_buf_q);
1778 memset(q, 0, sizeof(*q));
1779 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1780 q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1782 q->ops = &fimc_capture_qops;
1783 q->mem_ops = &vb2_dma_contig_memops;
1784 q->buf_struct_size = sizeof(struct fimc_vid_buffer);
1785 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1786 q->lock = &fimc->lock;
1787 q->dev = &fimc->pdev->dev;
1789 ret = vb2_queue_init(q);
1793 /* Default format configuration */
1794 fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0);
1795 vid_cap->ci_fmt.width = FIMC_DEFAULT_WIDTH;
1796 vid_cap->ci_fmt.height = FIMC_DEFAULT_HEIGHT;
1797 vid_cap->ci_fmt.code = fmt->mbus_code;
1799 ctx->s_frame.width = FIMC_DEFAULT_WIDTH;
1800 ctx->s_frame.height = FIMC_DEFAULT_HEIGHT;
1801 ctx->s_frame.fmt = fmt;
1803 fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_WRITEBACK, 0);
1804 vid_cap->wb_fmt = vid_cap->ci_fmt;
1805 vid_cap->wb_fmt.code = fmt->mbus_code;
1807 vid_cap->vd_pad.flags = MEDIA_PAD_FL_SINK;
1808 vfd->entity.function = MEDIA_ENT_F_PROC_VIDEO_SCALER;
1809 ret = media_entity_pads_init(&vfd->entity, 1, &vid_cap->vd_pad);
1813 ret = fimc_ctrls_create(ctx);
1815 goto err_me_cleanup;
1817 ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
1821 v4l2_info(v4l2_dev, "Registered %s as /dev/%s\n",
1822 vfd->name, video_device_node_name(vfd));
1824 vfd->ctrl_handler = &ctx->ctrls.handler;
1828 fimc_ctrls_delete(ctx);
1830 media_entity_cleanup(&vfd->entity);
1836 static int fimc_capture_subdev_registered(struct v4l2_subdev *sd)
1838 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1844 ret = fimc_register_m2m_device(fimc, sd->v4l2_dev);
1848 fimc->vid_cap.ve.pipe = v4l2_get_subdev_hostdata(sd);
1850 ret = fimc_register_capture_device(fimc, sd->v4l2_dev);
1852 fimc_unregister_m2m_device(fimc);
1853 fimc->vid_cap.ve.pipe = NULL;
1859 static void fimc_capture_subdev_unregistered(struct v4l2_subdev *sd)
1861 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1862 struct video_device *vdev;
1867 mutex_lock(&fimc->lock);
1869 fimc_unregister_m2m_device(fimc);
1870 vdev = &fimc->vid_cap.ve.vdev;
1872 if (video_is_registered(vdev)) {
1873 video_unregister_device(vdev);
1874 media_entity_cleanup(&vdev->entity);
1875 fimc_ctrls_delete(fimc->vid_cap.ctx);
1876 fimc->vid_cap.ve.pipe = NULL;
1878 kfree(fimc->vid_cap.ctx);
1879 fimc->vid_cap.ctx = NULL;
1881 mutex_unlock(&fimc->lock);
1884 static const struct v4l2_subdev_internal_ops fimc_capture_sd_internal_ops = {
1885 .registered = fimc_capture_subdev_registered,
1886 .unregistered = fimc_capture_subdev_unregistered,
1889 int fimc_initialize_capture_subdev(struct fimc_dev *fimc)
1891 struct v4l2_subdev *sd = &fimc->vid_cap.subdev;
1894 v4l2_subdev_init(sd, &fimc_subdev_ops);
1895 sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1896 snprintf(sd->name, sizeof(sd->name), "FIMC.%d", fimc->id);
1898 fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK_CAM].flags = MEDIA_PAD_FL_SINK;
1899 fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK_FIFO].flags = MEDIA_PAD_FL_SINK;
1900 fimc->vid_cap.sd_pads[FIMC_SD_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
1901 ret = media_entity_pads_init(&sd->entity, FIMC_SD_PADS_NUM,
1902 fimc->vid_cap.sd_pads);
1906 sd->entity.ops = &fimc_sd_media_ops;
1907 sd->internal_ops = &fimc_capture_sd_internal_ops;
1908 v4l2_set_subdevdata(sd, fimc);
1912 void fimc_unregister_capture_subdev(struct fimc_dev *fimc)
1914 struct v4l2_subdev *sd = &fimc->vid_cap.subdev;
1916 v4l2_device_unregister_subdev(sd);
1917 media_entity_cleanup(&sd->entity);
1918 v4l2_set_subdevdata(sd, NULL);