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>
30 #include "fimc-mdevice.h"
31 #include "fimc-core.h"
34 static int fimc_capture_hw_init(struct fimc_dev *fimc)
36 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
37 struct fimc_pipeline *p = &fimc->pipeline;
38 struct fimc_sensor_info *sensor;
42 if (p->subdevs[IDX_SENSOR] == NULL || ctx == NULL)
44 if (ctx->s_frame.fmt == NULL)
47 sensor = v4l2_get_subdev_hostdata(p->subdevs[IDX_SENSOR]);
49 spin_lock_irqsave(&fimc->slock, flags);
50 fimc_prepare_dma_offset(ctx, &ctx->d_frame);
51 fimc_set_yuv_order(ctx);
53 fimc_hw_set_camera_polarity(fimc, sensor->pdata);
54 fimc_hw_set_camera_type(fimc, sensor->pdata);
55 fimc_hw_set_camera_source(fimc, sensor->pdata);
56 fimc_hw_set_camera_offset(fimc, &ctx->s_frame);
58 ret = fimc_set_scaler_info(ctx);
60 fimc_hw_set_input_path(ctx);
61 fimc_hw_set_prescaler(ctx);
62 fimc_hw_set_mainscaler(ctx);
63 fimc_hw_set_target_format(ctx);
64 fimc_hw_set_rotation(ctx);
65 fimc_hw_set_effect(ctx);
66 fimc_hw_set_output_path(ctx);
67 fimc_hw_set_out_dma(ctx);
68 if (fimc->variant->has_alpha)
69 fimc_hw_set_rgb_alpha(ctx);
70 clear_bit(ST_CAPT_APPLY_CFG, &fimc->state);
72 spin_unlock_irqrestore(&fimc->slock, flags);
77 * Reinitialize the driver so it is ready to start the streaming again.
78 * Set fimc->state to indicate stream off and the hardware shut down state.
79 * If not suspending (@suspend is false), return any buffers to videobuf2.
80 * Otherwise put any owned buffers onto the pending buffers queue, so they
81 * can be re-spun when the device is being resumed. Also perform FIMC
82 * software reset and disable streaming on the whole pipeline if required.
84 static int fimc_capture_state_cleanup(struct fimc_dev *fimc, bool suspend)
86 struct fimc_vid_cap *cap = &fimc->vid_cap;
87 struct fimc_vid_buffer *buf;
91 spin_lock_irqsave(&fimc->slock, flags);
92 streaming = fimc->state & (1 << ST_CAPT_ISP_STREAM);
94 fimc->state &= ~(1 << ST_CAPT_RUN | 1 << ST_CAPT_SHUT |
95 1 << ST_CAPT_STREAM | 1 << ST_CAPT_ISP_STREAM);
97 fimc->state |= (1 << ST_CAPT_SUSPENDED);
99 fimc->state &= ~(1 << ST_CAPT_PEND | 1 << ST_CAPT_SUSPENDED);
101 /* Release unused buffers */
102 while (!suspend && !list_empty(&cap->pending_buf_q)) {
103 buf = fimc_pending_queue_pop(cap);
104 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
106 /* If suspending put unused buffers onto pending queue */
107 while (!list_empty(&cap->active_buf_q)) {
108 buf = fimc_active_queue_pop(cap);
110 fimc_pending_queue_add(cap, buf);
112 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
118 spin_unlock_irqrestore(&fimc->slock, flags);
121 return fimc_pipeline_s_stream(&fimc->pipeline, 0);
126 static int fimc_stop_capture(struct fimc_dev *fimc, bool suspend)
130 if (!fimc_capture_active(fimc))
133 spin_lock_irqsave(&fimc->slock, flags);
134 set_bit(ST_CAPT_SHUT, &fimc->state);
135 fimc_deactivate_capture(fimc);
136 spin_unlock_irqrestore(&fimc->slock, flags);
138 wait_event_timeout(fimc->irq_queue,
139 !test_bit(ST_CAPT_SHUT, &fimc->state),
140 (2*HZ/10)); /* 200 ms */
142 return fimc_capture_state_cleanup(fimc, suspend);
146 * fimc_capture_config_update - apply the camera interface configuration
148 * To be called from within the interrupt handler with fimc.slock
149 * spinlock held. It updates the camera pixel crop, rotation and
152 static int fimc_capture_config_update(struct fimc_ctx *ctx)
154 struct fimc_dev *fimc = ctx->fimc_dev;
157 fimc_hw_set_camera_offset(fimc, &ctx->s_frame);
159 ret = fimc_set_scaler_info(ctx);
163 fimc_hw_set_prescaler(ctx);
164 fimc_hw_set_mainscaler(ctx);
165 fimc_hw_set_target_format(ctx);
166 fimc_hw_set_rotation(ctx);
167 fimc_hw_set_effect(ctx);
168 fimc_prepare_dma_offset(ctx, &ctx->d_frame);
169 fimc_hw_set_out_dma(ctx);
170 if (fimc->variant->has_alpha)
171 fimc_hw_set_rgb_alpha(ctx);
173 clear_bit(ST_CAPT_APPLY_CFG, &fimc->state);
177 void fimc_capture_irq_handler(struct fimc_dev *fimc, int deq_buf)
179 struct fimc_vid_cap *cap = &fimc->vid_cap;
180 struct fimc_vid_buffer *v_buf;
184 if (test_and_clear_bit(ST_CAPT_SHUT, &fimc->state)) {
185 wake_up(&fimc->irq_queue);
189 if (!list_empty(&cap->active_buf_q) &&
190 test_bit(ST_CAPT_RUN, &fimc->state) && deq_buf) {
191 ktime_get_real_ts(&ts);
193 v_buf = fimc_active_queue_pop(cap);
195 tv = &v_buf->vb.v4l2_buf.timestamp;
196 tv->tv_sec = ts.tv_sec;
197 tv->tv_usec = ts.tv_nsec / NSEC_PER_USEC;
198 v_buf->vb.v4l2_buf.sequence = cap->frame_count++;
200 vb2_buffer_done(&v_buf->vb, 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 if (cap->active_buf_cnt == 0) {
221 clear_bit(ST_CAPT_RUN, &fimc->state);
223 if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
226 set_bit(ST_CAPT_RUN, &fimc->state);
229 if (test_bit(ST_CAPT_APPLY_CFG, &fimc->state))
230 fimc_capture_config_update(cap->ctx);
232 if (cap->active_buf_cnt == 1) {
233 fimc_deactivate_capture(fimc);
234 clear_bit(ST_CAPT_STREAM, &fimc->state);
237 dbg("frame: %d, active_buf_cnt: %d",
238 fimc_hw_get_frame_index(fimc), cap->active_buf_cnt);
242 static int start_streaming(struct vb2_queue *q, unsigned int count)
244 struct fimc_ctx *ctx = q->drv_priv;
245 struct fimc_dev *fimc = ctx->fimc_dev;
246 struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
250 vid_cap->frame_count = 0;
252 ret = fimc_capture_hw_init(fimc);
254 fimc_capture_state_cleanup(fimc, false);
258 set_bit(ST_CAPT_PEND, &fimc->state);
260 min_bufs = fimc->vid_cap.reqbufs_count > 1 ? 2 : 1;
262 if (vid_cap->active_buf_cnt >= min_bufs &&
263 !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) {
264 fimc_activate_capture(ctx);
266 if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
267 fimc_pipeline_s_stream(&fimc->pipeline, 1);
273 static int stop_streaming(struct vb2_queue *q)
275 struct fimc_ctx *ctx = q->drv_priv;
276 struct fimc_dev *fimc = ctx->fimc_dev;
278 if (!fimc_capture_active(fimc))
281 return fimc_stop_capture(fimc, false);
284 int fimc_capture_suspend(struct fimc_dev *fimc)
286 bool suspend = fimc_capture_busy(fimc);
288 int ret = fimc_stop_capture(fimc, suspend);
291 return fimc_pipeline_shutdown(&fimc->pipeline);
294 static void buffer_queue(struct vb2_buffer *vb);
296 int fimc_capture_resume(struct fimc_dev *fimc)
298 struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
299 struct fimc_vid_buffer *buf;
302 if (!test_and_clear_bit(ST_CAPT_SUSPENDED, &fimc->state))
305 INIT_LIST_HEAD(&fimc->vid_cap.active_buf_q);
306 vid_cap->buf_index = 0;
307 fimc_pipeline_initialize(&fimc->pipeline, &vid_cap->vfd->entity,
309 fimc_capture_hw_init(fimc);
311 clear_bit(ST_CAPT_SUSPENDED, &fimc->state);
313 for (i = 0; i < vid_cap->reqbufs_count; i++) {
314 if (list_empty(&vid_cap->pending_buf_q))
316 buf = fimc_pending_queue_pop(vid_cap);
317 buffer_queue(&buf->vb);
323 static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *pfmt,
324 unsigned int *num_buffers, unsigned int *num_planes,
325 unsigned int sizes[], void *allocators[])
327 const struct v4l2_pix_format_mplane *pixm = NULL;
328 struct fimc_ctx *ctx = vq->drv_priv;
329 struct fimc_frame *frame = &ctx->d_frame;
330 struct fimc_fmt *fmt = frame->fmt;
335 pixm = &pfmt->fmt.pix_mp;
336 fmt = fimc_find_format(&pixm->pixelformat, NULL,
337 FMT_FLAGS_CAM | FMT_FLAGS_M2M, -1);
338 wh = pixm->width * pixm->height;
340 wh = frame->f_width * frame->f_height;
346 *num_planes = fmt->memplanes;
348 for (i = 0; i < fmt->memplanes; i++) {
349 unsigned int size = (wh * fmt->depth[i]) / 8;
351 sizes[i] = max(size, pixm->plane_fmt[i].sizeimage);
353 sizes[i] = max_t(u32, size, frame->payload[i]);
355 allocators[i] = ctx->fimc_dev->alloc_ctx;
361 static int buffer_prepare(struct vb2_buffer *vb)
363 struct vb2_queue *vq = vb->vb2_queue;
364 struct fimc_ctx *ctx = vq->drv_priv;
367 if (ctx->d_frame.fmt == NULL)
370 for (i = 0; i < ctx->d_frame.fmt->memplanes; i++) {
371 unsigned long size = ctx->d_frame.payload[i];
373 if (vb2_plane_size(vb, i) < size) {
374 v4l2_err(ctx->fimc_dev->vid_cap.vfd,
375 "User buffer too small (%ld < %ld)\n",
376 vb2_plane_size(vb, i), size);
379 vb2_set_plane_payload(vb, i, size);
385 static void buffer_queue(struct vb2_buffer *vb)
387 struct fimc_vid_buffer *buf
388 = container_of(vb, struct fimc_vid_buffer, vb);
389 struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
390 struct fimc_dev *fimc = ctx->fimc_dev;
391 struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
395 spin_lock_irqsave(&fimc->slock, flags);
396 fimc_prepare_addr(ctx, &buf->vb, &ctx->d_frame, &buf->paddr);
398 if (!test_bit(ST_CAPT_SUSPENDED, &fimc->state) &&
399 !test_bit(ST_CAPT_STREAM, &fimc->state) &&
400 vid_cap->active_buf_cnt < FIMC_MAX_OUT_BUFS) {
401 /* Setup the buffer directly for processing. */
402 int buf_id = (vid_cap->reqbufs_count == 1) ? -1 :
405 fimc_hw_set_output_addr(fimc, &buf->paddr, buf_id);
406 buf->index = vid_cap->buf_index;
407 fimc_active_queue_add(vid_cap, buf);
409 if (++vid_cap->buf_index >= FIMC_MAX_OUT_BUFS)
410 vid_cap->buf_index = 0;
412 fimc_pending_queue_add(vid_cap, buf);
415 min_bufs = vid_cap->reqbufs_count > 1 ? 2 : 1;
418 if (vb2_is_streaming(&vid_cap->vbq) &&
419 vid_cap->active_buf_cnt >= min_bufs &&
420 !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) {
421 fimc_activate_capture(ctx);
422 spin_unlock_irqrestore(&fimc->slock, flags);
424 if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
425 fimc_pipeline_s_stream(&fimc->pipeline, 1);
428 spin_unlock_irqrestore(&fimc->slock, flags);
431 static void fimc_lock(struct vb2_queue *vq)
433 struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
434 mutex_lock(&ctx->fimc_dev->lock);
437 static void fimc_unlock(struct vb2_queue *vq)
439 struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
440 mutex_unlock(&ctx->fimc_dev->lock);
443 static struct vb2_ops fimc_capture_qops = {
444 .queue_setup = queue_setup,
445 .buf_prepare = buffer_prepare,
446 .buf_queue = buffer_queue,
447 .wait_prepare = fimc_unlock,
448 .wait_finish = fimc_lock,
449 .start_streaming = start_streaming,
450 .stop_streaming = stop_streaming,
454 * fimc_capture_ctrls_create - initialize the control handler
455 * Initialize the capture video node control handler and fill it
456 * with the FIMC controls. Inherit any sensor's controls if the
457 * 'user_subdev_api' flag is false (default behaviour).
458 * This function need to be called with the graph mutex held.
460 int fimc_capture_ctrls_create(struct fimc_dev *fimc)
462 struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
465 if (WARN_ON(vid_cap->ctx == NULL))
467 if (vid_cap->ctx->ctrls.ready)
470 ret = fimc_ctrls_create(vid_cap->ctx);
471 if (ret || vid_cap->user_subdev_api || !vid_cap->ctx->ctrls.ready)
474 return v4l2_ctrl_add_handler(&vid_cap->ctx->ctrls.handler,
475 fimc->pipeline.subdevs[IDX_SENSOR]->ctrl_handler);
478 static int fimc_capture_set_default_format(struct fimc_dev *fimc);
480 static int fimc_capture_open(struct file *file)
482 struct fimc_dev *fimc = video_drvdata(file);
485 dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
487 if (mutex_lock_interruptible(&fimc->lock))
490 if (fimc_m2m_active(fimc))
493 set_bit(ST_CAPT_BUSY, &fimc->state);
494 ret = pm_runtime_get_sync(&fimc->pdev->dev);
498 ret = v4l2_fh_open(file);
500 pm_runtime_put(&fimc->pdev->dev);
504 if (++fimc->vid_cap.refcnt == 1) {
505 ret = fimc_pipeline_initialize(&fimc->pipeline,
506 &fimc->vid_cap.vfd->entity, true);
508 if (!ret && !fimc->vid_cap.user_subdev_api)
509 ret = fimc_capture_set_default_format(fimc);
512 ret = fimc_capture_ctrls_create(fimc);
515 clear_bit(ST_CAPT_BUSY, &fimc->state);
516 pm_runtime_put_sync(&fimc->pdev->dev);
517 fimc->vid_cap.refcnt--;
518 v4l2_fh_release(file);
522 mutex_unlock(&fimc->lock);
526 static int fimc_capture_close(struct file *file)
528 struct fimc_dev *fimc = video_drvdata(file);
531 dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
533 if (mutex_lock_interruptible(&fimc->lock))
536 if (--fimc->vid_cap.refcnt == 0) {
537 clear_bit(ST_CAPT_BUSY, &fimc->state);
538 fimc_stop_capture(fimc, false);
539 fimc_pipeline_shutdown(&fimc->pipeline);
540 clear_bit(ST_CAPT_SUSPENDED, &fimc->state);
543 pm_runtime_put(&fimc->pdev->dev);
545 if (fimc->vid_cap.refcnt == 0) {
546 vb2_queue_release(&fimc->vid_cap.vbq);
547 fimc_ctrls_delete(fimc->vid_cap.ctx);
550 ret = v4l2_fh_release(file);
552 mutex_unlock(&fimc->lock);
556 static unsigned int fimc_capture_poll(struct file *file,
557 struct poll_table_struct *wait)
559 struct fimc_dev *fimc = video_drvdata(file);
562 if (mutex_lock_interruptible(&fimc->lock))
565 ret = vb2_poll(&fimc->vid_cap.vbq, file, wait);
566 mutex_unlock(&fimc->lock);
571 static int fimc_capture_mmap(struct file *file, struct vm_area_struct *vma)
573 struct fimc_dev *fimc = video_drvdata(file);
576 if (mutex_lock_interruptible(&fimc->lock))
579 ret = vb2_mmap(&fimc->vid_cap.vbq, vma);
580 mutex_unlock(&fimc->lock);
585 static const struct v4l2_file_operations fimc_capture_fops = {
586 .owner = THIS_MODULE,
587 .open = fimc_capture_open,
588 .release = fimc_capture_close,
589 .poll = fimc_capture_poll,
590 .unlocked_ioctl = video_ioctl2,
591 .mmap = fimc_capture_mmap,
595 * Format and crop negotiation helpers
598 static struct fimc_fmt *fimc_capture_try_format(struct fimc_ctx *ctx,
599 u32 *width, u32 *height,
600 u32 *code, u32 *fourcc, int pad)
602 bool rotation = ctx->rotation == 90 || ctx->rotation == 270;
603 struct fimc_dev *fimc = ctx->fimc_dev;
604 struct fimc_variant *var = fimc->variant;
605 struct fimc_pix_limit *pl = var->pix_limit;
606 struct fimc_frame *dst = &ctx->d_frame;
607 u32 depth, min_w, max_w, min_h, align_h = 3;
608 u32 mask = FMT_FLAGS_CAM;
609 struct fimc_fmt *ffmt;
611 /* Color conversion from/to JPEG is not supported */
612 if (code && ctx->s_frame.fmt && pad == FIMC_SD_PAD_SOURCE &&
613 fimc_fmt_is_jpeg(ctx->s_frame.fmt->color))
614 *code = V4L2_MBUS_FMT_JPEG_1X8;
616 if (fourcc && *fourcc != V4L2_PIX_FMT_JPEG && pad != FIMC_SD_PAD_SINK)
617 mask |= FMT_FLAGS_M2M;
619 ffmt = fimc_find_format(fourcc, code, mask, 0);
623 *code = ffmt->mbus_code;
625 *fourcc = ffmt->fourcc;
627 if (pad == FIMC_SD_PAD_SINK) {
628 max_w = fimc_fmt_is_jpeg(ffmt->color) ?
629 pl->scaler_dis_w : pl->scaler_en_w;
630 /* Apply the camera input interface pixel constraints */
631 v4l_bound_align_image(width, max_t(u32, *width, 32), max_w, 4,
632 height, max_t(u32, *height, 32),
633 FIMC_CAMIF_MAX_HEIGHT,
634 fimc_fmt_is_jpeg(ffmt->color) ? 3 : 1,
638 /* Can't scale or crop in transparent (JPEG) transfer mode */
639 if (fimc_fmt_is_jpeg(ffmt->color)) {
640 *width = ctx->s_frame.f_width;
641 *height = ctx->s_frame.f_height;
644 /* Apply the scaler and the output DMA constraints */
645 max_w = rotation ? pl->out_rot_en_w : pl->out_rot_dis_w;
646 if (ctx->state & FIMC_COMPOSE) {
647 min_w = dst->offs_h + dst->width;
648 min_h = dst->offs_v + dst->height;
650 min_w = var->min_out_pixsize;
651 min_h = var->min_out_pixsize;
653 if (var->min_vsize_align == 1 && !rotation)
654 align_h = fimc_fmt_is_rgb(ffmt->color) ? 0 : 1;
656 depth = fimc_get_format_depth(ffmt);
657 v4l_bound_align_image(width, min_w, max_w,
658 ffs(var->min_out_pixsize) - 1,
659 height, min_h, FIMC_CAMIF_MAX_HEIGHT,
661 64/(ALIGN(depth, 8)));
663 dbg("pad%d: code: 0x%x, %dx%d. dst fmt: %dx%d",
664 pad, code ? *code : 0, *width, *height,
665 dst->f_width, dst->f_height);
670 static void fimc_capture_try_selection(struct fimc_ctx *ctx,
674 bool rotate = ctx->rotation == 90 || ctx->rotation == 270;
675 struct fimc_dev *fimc = ctx->fimc_dev;
676 struct fimc_variant *var = fimc->variant;
677 struct fimc_pix_limit *pl = var->pix_limit;
678 struct fimc_frame *sink = &ctx->s_frame;
679 u32 max_w, max_h, min_w = 0, min_h = 0, min_sz;
680 u32 align_sz = 0, align_h = 4;
681 u32 max_sc_h, max_sc_v;
683 /* In JPEG transparent transfer mode cropping is not supported */
684 if (fimc_fmt_is_jpeg(ctx->d_frame.fmt->color)) {
685 r->width = sink->f_width;
686 r->height = sink->f_height;
687 r->left = r->top = 0;
690 if (target == V4L2_SEL_TGT_COMPOSE) {
691 if (ctx->rotation != 90 && ctx->rotation != 270)
693 max_sc_h = min(SCALER_MAX_HRATIO, 1 << (ffs(sink->width) - 3));
694 max_sc_v = min(SCALER_MAX_VRATIO, 1 << (ffs(sink->height) - 1));
695 min_sz = var->min_out_pixsize;
697 u32 depth = fimc_get_format_depth(sink->fmt);
698 align_sz = 64/ALIGN(depth, 8);
699 min_sz = var->min_inp_pixsize;
700 min_w = min_h = min_sz;
701 max_sc_h = max_sc_v = 1;
704 * For the compose rectangle the following constraints must be met:
705 * - it must fit in the sink pad format rectangle (f_width/f_height);
706 * - maximum downscaling ratio is 64;
707 * - maximum crop size depends if the rotator is used or not;
708 * - the sink pad format width/height must be 4 multiple of the
709 * prescaler ratios determined by sink pad size and source pad crop,
710 * the prescaler ratio is returned by fimc_get_scaler_factor().
713 rotate ? pl->out_rot_en_w : pl->out_rot_dis_w,
714 rotate ? sink->f_height : sink->f_width);
715 max_h = min_t(u32, FIMC_CAMIF_MAX_HEIGHT, sink->f_height);
717 if (target == V4L2_SEL_TGT_COMPOSE) {
718 min_w = min_t(u32, max_w, sink->f_width / max_sc_h);
719 min_h = min_t(u32, max_h, sink->f_height / max_sc_v);
721 swap(max_sc_h, max_sc_v);
725 v4l_bound_align_image(&r->width, min_w, max_w, ffs(min_sz) - 1,
726 &r->height, min_h, max_h, align_h,
728 /* Adjust left/top if crop/compose rectangle is out of bounds */
729 r->left = clamp_t(u32, r->left, 0, sink->f_width - r->width);
730 r->top = clamp_t(u32, r->top, 0, sink->f_height - r->height);
731 r->left = round_down(r->left, var->hor_offs_align);
733 dbg("target %#x: (%d,%d)/%dx%d, sink fmt: %dx%d",
734 target, r->left, r->top, r->width, r->height,
735 sink->f_width, sink->f_height);
739 * The video node ioctl operations
741 static int fimc_vidioc_querycap_capture(struct file *file, void *priv,
742 struct v4l2_capability *cap)
744 struct fimc_dev *fimc = video_drvdata(file);
746 strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1);
747 strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1);
748 cap->bus_info[0] = 0;
749 cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE_MPLANE;
754 static int fimc_cap_enum_fmt_mplane(struct file *file, void *priv,
755 struct v4l2_fmtdesc *f)
757 struct fimc_fmt *fmt;
759 fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM | FMT_FLAGS_M2M,
763 strncpy(f->description, fmt->name, sizeof(f->description) - 1);
764 f->pixelformat = fmt->fourcc;
765 if (fmt->fourcc == V4L2_MBUS_FMT_JPEG_1X8)
766 f->flags |= V4L2_FMT_FLAG_COMPRESSED;
771 * fimc_pipeline_try_format - negotiate and/or set formats at pipeline
773 * @ctx: FIMC capture context
774 * @tfmt: media bus format to try/set on subdevs
775 * @fmt_id: fimc pixel format id corresponding to returned @tfmt (output)
776 * @set: true to set format on subdevs, false to try only
778 static int fimc_pipeline_try_format(struct fimc_ctx *ctx,
779 struct v4l2_mbus_framefmt *tfmt,
780 struct fimc_fmt **fmt_id,
783 struct fimc_dev *fimc = ctx->fimc_dev;
784 struct v4l2_subdev *sd = fimc->pipeline.subdevs[IDX_SENSOR];
785 struct v4l2_subdev *csis = fimc->pipeline.subdevs[IDX_CSIS];
786 struct v4l2_subdev_format sfmt;
787 struct v4l2_mbus_framefmt *mf = &sfmt.format;
788 struct fimc_fmt *ffmt = NULL;
791 if (WARN_ON(!sd || !tfmt))
794 memset(&sfmt, 0, sizeof(sfmt));
797 sfmt.which = set ? V4L2_SUBDEV_FORMAT_ACTIVE : V4L2_SUBDEV_FORMAT_TRY;
799 ffmt = fimc_find_format(NULL, mf->code != 0 ? &mf->code : NULL,
803 * Notify user-space if common pixel code for
804 * host and sensor does not exist.
808 mf->code = tfmt->code = ffmt->mbus_code;
810 ret = v4l2_subdev_call(sd, pad, set_fmt, NULL, &sfmt);
813 if (mf->code != tfmt->code) {
817 if (mf->width != tfmt->width || mf->height != tfmt->height) {
818 u32 fcc = ffmt->fourcc;
819 tfmt->width = mf->width;
820 tfmt->height = mf->height;
821 ffmt = fimc_capture_try_format(ctx,
822 &tfmt->width, &tfmt->height,
823 NULL, &fcc, FIMC_SD_PAD_SOURCE);
824 if (ffmt && ffmt->mbus_code)
825 mf->code = ffmt->mbus_code;
826 if (mf->width != tfmt->width ||
827 mf->height != tfmt->height)
829 tfmt->code = mf->code;
832 ret = v4l2_subdev_call(csis, pad, set_fmt, NULL, &sfmt);
834 if (mf->code == tfmt->code &&
835 mf->width == tfmt->width && mf->height == tfmt->height)
843 dbg("code: 0x%x, %dx%d, %p", mf->code, mf->width, mf->height, ffmt);
847 static int fimc_cap_g_fmt_mplane(struct file *file, void *fh,
848 struct v4l2_format *f)
850 struct fimc_dev *fimc = video_drvdata(file);
851 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
853 return fimc_fill_format(&ctx->d_frame, f);
856 static int fimc_cap_try_fmt_mplane(struct file *file, void *fh,
857 struct v4l2_format *f)
859 struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
860 struct fimc_dev *fimc = video_drvdata(file);
861 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
862 struct v4l2_mbus_framefmt mf;
863 struct fimc_fmt *ffmt = NULL;
865 if (pix->pixelformat == V4L2_PIX_FMT_JPEG) {
866 fimc_capture_try_format(ctx, &pix->width, &pix->height,
867 NULL, &pix->pixelformat,
869 ctx->s_frame.f_width = pix->width;
870 ctx->s_frame.f_height = pix->height;
872 ffmt = fimc_capture_try_format(ctx, &pix->width, &pix->height,
873 NULL, &pix->pixelformat,
878 if (!fimc->vid_cap.user_subdev_api) {
879 mf.width = pix->width;
880 mf.height = pix->height;
881 mf.code = ffmt->mbus_code;
882 fimc_md_graph_lock(fimc);
883 fimc_pipeline_try_format(ctx, &mf, &ffmt, false);
884 fimc_md_graph_unlock(fimc);
886 pix->width = mf.width;
887 pix->height = mf.height;
889 pix->pixelformat = ffmt->fourcc;
892 fimc_adjust_mplane_format(ffmt, pix->width, pix->height, pix);
896 static void fimc_capture_mark_jpeg_xfer(struct fimc_ctx *ctx, bool jpeg)
898 ctx->scaler.enabled = !jpeg;
899 fimc_ctrls_activate(ctx, !jpeg);
902 set_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state);
904 clear_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state);
907 static int fimc_capture_set_format(struct fimc_dev *fimc, struct v4l2_format *f)
909 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
910 struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
911 struct v4l2_mbus_framefmt *mf = &fimc->vid_cap.mf;
912 struct fimc_frame *ff = &ctx->d_frame;
913 struct fimc_fmt *s_fmt = NULL;
916 if (vb2_is_busy(&fimc->vid_cap.vbq))
919 /* Pre-configure format at camera interface input, for JPEG only */
920 if (pix->pixelformat == V4L2_PIX_FMT_JPEG) {
921 fimc_capture_try_format(ctx, &pix->width, &pix->height,
922 NULL, &pix->pixelformat,
924 ctx->s_frame.f_width = pix->width;
925 ctx->s_frame.f_height = pix->height;
927 /* Try the format at the scaler and the DMA output */
928 ff->fmt = fimc_capture_try_format(ctx, &pix->width, &pix->height,
929 NULL, &pix->pixelformat,
934 /* Update RGB Alpha control state and value range */
935 fimc_alpha_ctrl_update(ctx);
937 /* Try to match format at the host and the sensor */
938 if (!fimc->vid_cap.user_subdev_api) {
939 mf->code = ff->fmt->mbus_code;
940 mf->width = pix->width;
941 mf->height = pix->height;
943 fimc_md_graph_lock(fimc);
944 ret = fimc_pipeline_try_format(ctx, mf, &s_fmt, true);
945 fimc_md_graph_unlock(fimc);
948 pix->width = mf->width;
949 pix->height = mf->height;
952 fimc_adjust_mplane_format(ff->fmt, pix->width, pix->height, pix);
953 for (i = 0; i < ff->fmt->colplanes; i++)
954 ff->payload[i] = pix->plane_fmt[i].sizeimage;
956 set_frame_bounds(ff, pix->width, pix->height);
957 /* Reset the composition rectangle if not yet configured */
958 if (!(ctx->state & FIMC_COMPOSE))
959 set_frame_crop(ff, 0, 0, pix->width, pix->height);
961 fimc_capture_mark_jpeg_xfer(ctx, fimc_fmt_is_jpeg(ff->fmt->color));
963 /* Reset cropping and set format at the camera interface input */
964 if (!fimc->vid_cap.user_subdev_api) {
965 ctx->s_frame.fmt = s_fmt;
966 set_frame_bounds(&ctx->s_frame, pix->width, pix->height);
967 set_frame_crop(&ctx->s_frame, 0, 0, pix->width, pix->height);
973 static int fimc_cap_s_fmt_mplane(struct file *file, void *priv,
974 struct v4l2_format *f)
976 struct fimc_dev *fimc = video_drvdata(file);
978 return fimc_capture_set_format(fimc, f);
981 static int fimc_cap_enum_input(struct file *file, void *priv,
982 struct v4l2_input *i)
984 struct fimc_dev *fimc = video_drvdata(file);
985 struct v4l2_subdev *sd = fimc->pipeline.subdevs[IDX_SENSOR];
990 i->type = V4L2_INPUT_TYPE_CAMERA;
992 strlcpy(i->name, sd->name, sizeof(i->name));
996 static int fimc_cap_s_input(struct file *file, void *priv, unsigned int i)
998 return i == 0 ? i : -EINVAL;
1001 static int fimc_cap_g_input(struct file *file, void *priv, unsigned int *i)
1008 * fimc_pipeline_validate - check for formats inconsistencies
1009 * between source and sink pad of each link
1011 * Return 0 if all formats match or -EPIPE otherwise.
1013 static int fimc_pipeline_validate(struct fimc_dev *fimc)
1015 struct v4l2_subdev_format sink_fmt, src_fmt;
1016 struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
1017 struct v4l2_subdev *sd;
1018 struct media_pad *pad;
1021 /* Start with the video capture node pad */
1022 pad = media_entity_remote_source(&vid_cap->vd_pad);
1025 /* FIMC.{N} subdevice */
1026 sd = media_entity_to_v4l2_subdev(pad->entity);
1029 /* Retrieve format at the sink pad */
1030 pad = &sd->entity.pads[0];
1031 if (!(pad->flags & MEDIA_PAD_FL_SINK))
1033 /* Don't call FIMC subdev operation to avoid nested locking */
1034 if (sd == &fimc->vid_cap.subdev) {
1035 struct fimc_frame *ff = &vid_cap->ctx->s_frame;
1036 sink_fmt.format.width = ff->f_width;
1037 sink_fmt.format.height = ff->f_height;
1038 sink_fmt.format.code = ff->fmt ? ff->fmt->mbus_code : 0;
1040 sink_fmt.pad = pad->index;
1041 sink_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
1042 ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sink_fmt);
1043 if (ret < 0 && ret != -ENOIOCTLCMD)
1046 /* Retrieve format at the source pad */
1047 pad = media_entity_remote_source(pad);
1049 media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
1052 sd = media_entity_to_v4l2_subdev(pad->entity);
1053 src_fmt.pad = pad->index;
1054 src_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
1055 ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &src_fmt);
1056 if (ret < 0 && ret != -ENOIOCTLCMD)
1059 if (src_fmt.format.width != sink_fmt.format.width ||
1060 src_fmt.format.height != sink_fmt.format.height ||
1061 src_fmt.format.code != sink_fmt.format.code)
1067 static int fimc_cap_streamon(struct file *file, void *priv,
1068 enum v4l2_buf_type type)
1070 struct fimc_dev *fimc = video_drvdata(file);
1071 struct fimc_pipeline *p = &fimc->pipeline;
1072 struct v4l2_subdev *sd = p->subdevs[IDX_SENSOR];
1075 if (fimc_capture_active(fimc))
1078 ret = media_entity_pipeline_start(&sd->entity, p->m_pipeline);
1082 if (fimc->vid_cap.user_subdev_api) {
1083 ret = fimc_pipeline_validate(fimc);
1085 media_entity_pipeline_stop(&sd->entity);
1089 return vb2_streamon(&fimc->vid_cap.vbq, type);
1092 static int fimc_cap_streamoff(struct file *file, void *priv,
1093 enum v4l2_buf_type type)
1095 struct fimc_dev *fimc = video_drvdata(file);
1096 struct v4l2_subdev *sd = fimc->pipeline.subdevs[IDX_SENSOR];
1099 ret = vb2_streamoff(&fimc->vid_cap.vbq, type);
1101 media_entity_pipeline_stop(&sd->entity);
1105 static int fimc_cap_reqbufs(struct file *file, void *priv,
1106 struct v4l2_requestbuffers *reqbufs)
1108 struct fimc_dev *fimc = video_drvdata(file);
1109 int ret = vb2_reqbufs(&fimc->vid_cap.vbq, reqbufs);
1112 fimc->vid_cap.reqbufs_count = reqbufs->count;
1116 static int fimc_cap_querybuf(struct file *file, void *priv,
1117 struct v4l2_buffer *buf)
1119 struct fimc_dev *fimc = video_drvdata(file);
1121 return vb2_querybuf(&fimc->vid_cap.vbq, buf);
1124 static int fimc_cap_qbuf(struct file *file, void *priv,
1125 struct v4l2_buffer *buf)
1127 struct fimc_dev *fimc = video_drvdata(file);
1129 return vb2_qbuf(&fimc->vid_cap.vbq, buf);
1132 static int fimc_cap_dqbuf(struct file *file, void *priv,
1133 struct v4l2_buffer *buf)
1135 struct fimc_dev *fimc = video_drvdata(file);
1137 return vb2_dqbuf(&fimc->vid_cap.vbq, buf, file->f_flags & O_NONBLOCK);
1140 static int fimc_cap_create_bufs(struct file *file, void *priv,
1141 struct v4l2_create_buffers *create)
1143 struct fimc_dev *fimc = video_drvdata(file);
1145 return vb2_create_bufs(&fimc->vid_cap.vbq, create);
1148 static int fimc_cap_prepare_buf(struct file *file, void *priv,
1149 struct v4l2_buffer *b)
1151 struct fimc_dev *fimc = video_drvdata(file);
1153 return vb2_prepare_buf(&fimc->vid_cap.vbq, b);
1156 static int fimc_cap_g_selection(struct file *file, void *fh,
1157 struct v4l2_selection *s)
1159 struct fimc_dev *fimc = video_drvdata(file);
1160 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1161 struct fimc_frame *f = &ctx->s_frame;
1163 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1166 switch (s->target) {
1167 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
1168 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
1170 case V4L2_SEL_TGT_CROP_BOUNDS:
1171 case V4L2_SEL_TGT_CROP_DEFAULT:
1174 s->r.width = f->o_width;
1175 s->r.height = f->o_height;
1178 case V4L2_SEL_TGT_COMPOSE:
1180 case V4L2_SEL_TGT_CROP:
1181 s->r.left = f->offs_h;
1182 s->r.top = f->offs_v;
1183 s->r.width = f->width;
1184 s->r.height = f->height;
1191 /* Return 1 if rectangle a is enclosed in rectangle b, or 0 otherwise. */
1192 static int enclosed_rectangle(struct v4l2_rect *a, struct v4l2_rect *b)
1194 if (a->left < b->left || a->top < b->top)
1196 if (a->left + a->width > b->left + b->width)
1198 if (a->top + a->height > b->top + b->height)
1204 static int fimc_cap_s_selection(struct file *file, void *fh,
1205 struct v4l2_selection *s)
1207 struct fimc_dev *fimc = video_drvdata(file);
1208 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1209 struct v4l2_rect rect = s->r;
1210 struct fimc_frame *f;
1211 unsigned long flags;
1213 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1216 if (s->target == V4L2_SEL_TGT_COMPOSE)
1218 else if (s->target == V4L2_SEL_TGT_CROP)
1223 fimc_capture_try_selection(ctx, &rect, s->target);
1225 if (s->flags & V4L2_SEL_FLAG_LE &&
1226 !enclosed_rectangle(&rect, &s->r))
1229 if (s->flags & V4L2_SEL_FLAG_GE &&
1230 !enclosed_rectangle(&s->r, &rect))
1234 spin_lock_irqsave(&fimc->slock, flags);
1235 set_frame_crop(f, s->r.left, s->r.top, s->r.width,
1237 spin_unlock_irqrestore(&fimc->slock, flags);
1239 set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
1243 static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops = {
1244 .vidioc_querycap = fimc_vidioc_querycap_capture,
1246 .vidioc_enum_fmt_vid_cap_mplane = fimc_cap_enum_fmt_mplane,
1247 .vidioc_try_fmt_vid_cap_mplane = fimc_cap_try_fmt_mplane,
1248 .vidioc_s_fmt_vid_cap_mplane = fimc_cap_s_fmt_mplane,
1249 .vidioc_g_fmt_vid_cap_mplane = fimc_cap_g_fmt_mplane,
1251 .vidioc_reqbufs = fimc_cap_reqbufs,
1252 .vidioc_querybuf = fimc_cap_querybuf,
1254 .vidioc_qbuf = fimc_cap_qbuf,
1255 .vidioc_dqbuf = fimc_cap_dqbuf,
1257 .vidioc_prepare_buf = fimc_cap_prepare_buf,
1258 .vidioc_create_bufs = fimc_cap_create_bufs,
1260 .vidioc_streamon = fimc_cap_streamon,
1261 .vidioc_streamoff = fimc_cap_streamoff,
1263 .vidioc_g_selection = fimc_cap_g_selection,
1264 .vidioc_s_selection = fimc_cap_s_selection,
1266 .vidioc_enum_input = fimc_cap_enum_input,
1267 .vidioc_s_input = fimc_cap_s_input,
1268 .vidioc_g_input = fimc_cap_g_input,
1271 /* Capture subdev media entity operations */
1272 static int fimc_link_setup(struct media_entity *entity,
1273 const struct media_pad *local,
1274 const struct media_pad *remote, u32 flags)
1276 struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
1277 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1279 if (media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
1282 if (WARN_ON(fimc == NULL))
1285 dbg("%s --> %s, flags: 0x%x. input: 0x%x",
1286 local->entity->name, remote->entity->name, flags,
1287 fimc->vid_cap.input);
1289 if (flags & MEDIA_LNK_FL_ENABLED) {
1290 if (fimc->vid_cap.input != 0)
1292 fimc->vid_cap.input = sd->grp_id;
1296 fimc->vid_cap.input = 0;
1300 static const struct media_entity_operations fimc_sd_media_ops = {
1301 .link_setup = fimc_link_setup,
1305 * fimc_sensor_notify - v4l2_device notification from a sensor subdev
1306 * @sd: pointer to a subdev generating the notification
1307 * @notification: the notification type, must be S5P_FIMC_TX_END_NOTIFY
1308 * @arg: pointer to an u32 type integer that stores the frame payload value
1310 * The End Of Frame notification sent by sensor subdev in its still capture
1311 * mode. If there is only a single VSYNC generated by the sensor at the
1312 * beginning of a frame transmission, FIMC does not issue the LastIrq
1313 * (end of frame) interrupt. And this notification is used to complete the
1314 * frame capture and returning a buffer to user-space. Subdev drivers should
1315 * call this notification from their last 'End of frame capture' interrupt.
1317 void fimc_sensor_notify(struct v4l2_subdev *sd, unsigned int notification,
1320 struct fimc_sensor_info *sensor;
1321 struct fimc_vid_buffer *buf;
1322 struct fimc_md *fmd;
1323 struct fimc_dev *fimc;
1324 unsigned long flags;
1329 sensor = v4l2_get_subdev_hostdata(sd);
1330 fmd = entity_to_fimc_mdev(&sd->entity);
1332 spin_lock_irqsave(&fmd->slock, flags);
1333 fimc = sensor ? sensor->host : NULL;
1335 if (fimc && arg && notification == S5P_FIMC_TX_END_NOTIFY &&
1336 test_bit(ST_CAPT_PEND, &fimc->state)) {
1337 unsigned long irq_flags;
1338 spin_lock_irqsave(&fimc->slock, irq_flags);
1339 if (!list_empty(&fimc->vid_cap.active_buf_q)) {
1340 buf = list_entry(fimc->vid_cap.active_buf_q.next,
1341 struct fimc_vid_buffer, list);
1342 vb2_set_plane_payload(&buf->vb, 0, *((u32 *)arg));
1344 fimc_capture_irq_handler(fimc, 1);
1345 fimc_deactivate_capture(fimc);
1346 spin_unlock_irqrestore(&fimc->slock, irq_flags);
1348 spin_unlock_irqrestore(&fmd->slock, flags);
1351 static int fimc_subdev_enum_mbus_code(struct v4l2_subdev *sd,
1352 struct v4l2_subdev_fh *fh,
1353 struct v4l2_subdev_mbus_code_enum *code)
1355 struct fimc_fmt *fmt;
1357 fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, code->index);
1360 code->code = fmt->mbus_code;
1364 static int fimc_subdev_get_fmt(struct v4l2_subdev *sd,
1365 struct v4l2_subdev_fh *fh,
1366 struct v4l2_subdev_format *fmt)
1368 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1369 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1370 struct v4l2_mbus_framefmt *mf;
1371 struct fimc_frame *ff;
1373 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
1374 mf = v4l2_subdev_get_try_format(fh, fmt->pad);
1379 mf->colorspace = V4L2_COLORSPACE_JPEG;
1380 ff = fmt->pad == FIMC_SD_PAD_SINK ? &ctx->s_frame : &ctx->d_frame;
1382 mutex_lock(&fimc->lock);
1383 /* The pixel code is same on both input and output pad */
1384 if (!WARN_ON(ctx->s_frame.fmt == NULL))
1385 mf->code = ctx->s_frame.fmt->mbus_code;
1386 mf->width = ff->f_width;
1387 mf->height = ff->f_height;
1388 mutex_unlock(&fimc->lock);
1393 static int fimc_subdev_set_fmt(struct v4l2_subdev *sd,
1394 struct v4l2_subdev_fh *fh,
1395 struct v4l2_subdev_format *fmt)
1397 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1398 struct v4l2_mbus_framefmt *mf = &fmt->format;
1399 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1400 struct fimc_frame *ff;
1401 struct fimc_fmt *ffmt;
1403 dbg("pad%d: code: 0x%x, %dx%d",
1404 fmt->pad, mf->code, mf->width, mf->height);
1406 if (fmt->pad == FIMC_SD_PAD_SOURCE &&
1407 vb2_is_busy(&fimc->vid_cap.vbq))
1410 mutex_lock(&fimc->lock);
1411 ffmt = fimc_capture_try_format(ctx, &mf->width, &mf->height,
1412 &mf->code, NULL, fmt->pad);
1413 mutex_unlock(&fimc->lock);
1414 mf->colorspace = V4L2_COLORSPACE_JPEG;
1416 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
1417 mf = v4l2_subdev_get_try_format(fh, fmt->pad);
1421 /* Update RGB Alpha control state and value range */
1422 fimc_alpha_ctrl_update(ctx);
1424 fimc_capture_mark_jpeg_xfer(ctx, fimc_fmt_is_jpeg(ffmt->color));
1426 ff = fmt->pad == FIMC_SD_PAD_SINK ?
1427 &ctx->s_frame : &ctx->d_frame;
1429 mutex_lock(&fimc->lock);
1430 set_frame_bounds(ff, mf->width, mf->height);
1431 fimc->vid_cap.mf = *mf;
1434 /* Reset the crop rectangle if required. */
1435 if (!(fmt->pad == FIMC_SD_PAD_SOURCE && (ctx->state & FIMC_COMPOSE)))
1436 set_frame_crop(ff, 0, 0, mf->width, mf->height);
1438 if (fmt->pad == FIMC_SD_PAD_SINK)
1439 ctx->state &= ~FIMC_COMPOSE;
1440 mutex_unlock(&fimc->lock);
1444 static int fimc_subdev_get_selection(struct v4l2_subdev *sd,
1445 struct v4l2_subdev_fh *fh,
1446 struct v4l2_subdev_selection *sel)
1448 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1449 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1450 struct fimc_frame *f = &ctx->s_frame;
1451 struct v4l2_rect *r = &sel->r;
1452 struct v4l2_rect *try_sel;
1454 if (sel->pad != FIMC_SD_PAD_SINK)
1457 mutex_lock(&fimc->lock);
1459 switch (sel->target) {
1460 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
1462 case V4L2_SEL_TGT_CROP_BOUNDS:
1463 r->width = f->o_width;
1464 r->height = f->o_height;
1467 mutex_unlock(&fimc->lock);
1470 case V4L2_SEL_TGT_CROP:
1471 try_sel = v4l2_subdev_get_try_crop(fh, sel->pad);
1473 case V4L2_SEL_TGT_COMPOSE:
1474 try_sel = v4l2_subdev_get_try_compose(fh, sel->pad);
1478 mutex_unlock(&fimc->lock);
1482 if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {
1485 r->left = f->offs_h;
1487 r->width = f->width;
1488 r->height = f->height;
1491 dbg("target %#x: l:%d, t:%d, %dx%d, f_w: %d, f_h: %d",
1492 sel->pad, r->left, r->top, r->width, r->height,
1493 f->f_width, f->f_height);
1495 mutex_unlock(&fimc->lock);
1499 static int fimc_subdev_set_selection(struct v4l2_subdev *sd,
1500 struct v4l2_subdev_fh *fh,
1501 struct v4l2_subdev_selection *sel)
1503 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1504 struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1505 struct fimc_frame *f = &ctx->s_frame;
1506 struct v4l2_rect *r = &sel->r;
1507 struct v4l2_rect *try_sel;
1508 unsigned long flags;
1510 if (sel->pad != FIMC_SD_PAD_SINK)
1513 mutex_lock(&fimc->lock);
1514 fimc_capture_try_selection(ctx, r, V4L2_SEL_TGT_CROP);
1516 switch (sel->target) {
1517 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
1519 case V4L2_SEL_TGT_CROP_BOUNDS:
1520 r->width = f->o_width;
1521 r->height = f->o_height;
1524 mutex_unlock(&fimc->lock);
1527 case V4L2_SEL_TGT_CROP:
1528 try_sel = v4l2_subdev_get_try_crop(fh, sel->pad);
1530 case V4L2_SEL_TGT_COMPOSE:
1531 try_sel = v4l2_subdev_get_try_compose(fh, sel->pad);
1535 mutex_unlock(&fimc->lock);
1539 if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {
1542 spin_lock_irqsave(&fimc->slock, flags);
1543 set_frame_crop(f, r->left, r->top, r->width, r->height);
1544 set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
1545 spin_unlock_irqrestore(&fimc->slock, flags);
1546 if (sel->target == V4L2_SEL_TGT_COMPOSE)
1547 ctx->state |= FIMC_COMPOSE;
1550 dbg("target %#x: (%d,%d)/%dx%d", sel->target, r->left, r->top,
1551 r->width, r->height);
1553 mutex_unlock(&fimc->lock);
1557 static struct v4l2_subdev_pad_ops fimc_subdev_pad_ops = {
1558 .enum_mbus_code = fimc_subdev_enum_mbus_code,
1559 .get_selection = fimc_subdev_get_selection,
1560 .set_selection = fimc_subdev_set_selection,
1561 .get_fmt = fimc_subdev_get_fmt,
1562 .set_fmt = fimc_subdev_set_fmt,
1565 static struct v4l2_subdev_ops fimc_subdev_ops = {
1566 .pad = &fimc_subdev_pad_ops,
1569 /* Set default format at the sensor and host interface */
1570 static int fimc_capture_set_default_format(struct fimc_dev *fimc)
1572 struct v4l2_format fmt = {
1573 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
1577 .pixelformat = V4L2_PIX_FMT_YUYV,
1578 .field = V4L2_FIELD_NONE,
1579 .colorspace = V4L2_COLORSPACE_JPEG,
1583 return fimc_capture_set_format(fimc, &fmt);
1586 /* fimc->lock must be already initialized */
1587 static int fimc_register_capture_device(struct fimc_dev *fimc,
1588 struct v4l2_device *v4l2_dev)
1590 struct video_device *vfd;
1591 struct fimc_vid_cap *vid_cap;
1592 struct fimc_ctx *ctx;
1593 struct vb2_queue *q;
1596 ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
1600 ctx->fimc_dev = fimc;
1601 ctx->in_path = FIMC_IO_CAMERA;
1602 ctx->out_path = FIMC_IO_DMA;
1603 ctx->state = FIMC_CTX_CAP;
1604 ctx->s_frame.fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0);
1605 ctx->d_frame.fmt = ctx->s_frame.fmt;
1607 vfd = video_device_alloc();
1609 v4l2_err(v4l2_dev, "Failed to allocate video device\n");
1613 snprintf(vfd->name, sizeof(vfd->name), "fimc.%d.capture", fimc->id);
1615 vfd->fops = &fimc_capture_fops;
1616 vfd->ioctl_ops = &fimc_capture_ioctl_ops;
1617 vfd->v4l2_dev = v4l2_dev;
1619 vfd->release = video_device_release;
1620 vfd->lock = &fimc->lock;
1622 video_set_drvdata(vfd, fimc);
1624 vid_cap = &fimc->vid_cap;
1626 vid_cap->active_buf_cnt = 0;
1627 vid_cap->reqbufs_count = 0;
1628 vid_cap->refcnt = 0;
1630 INIT_LIST_HEAD(&vid_cap->pending_buf_q);
1631 INIT_LIST_HEAD(&vid_cap->active_buf_q);
1634 q = &fimc->vid_cap.vbq;
1635 memset(q, 0, sizeof(*q));
1636 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1637 q->io_modes = VB2_MMAP | VB2_USERPTR;
1638 q->drv_priv = fimc->vid_cap.ctx;
1639 q->ops = &fimc_capture_qops;
1640 q->mem_ops = &vb2_dma_contig_memops;
1641 q->buf_struct_size = sizeof(struct fimc_vid_buffer);
1645 vid_cap->vd_pad.flags = MEDIA_PAD_FL_SINK;
1646 ret = media_entity_init(&vfd->entity, 1, &vid_cap->vd_pad, 0);
1650 ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
1654 v4l2_info(v4l2_dev, "Registered %s as /dev/%s\n",
1655 vfd->name, video_device_node_name(vfd));
1657 vfd->ctrl_handler = &ctx->ctrls.handler;
1661 media_entity_cleanup(&vfd->entity);
1663 video_device_release(vfd);
1669 static int fimc_capture_subdev_registered(struct v4l2_subdev *sd)
1671 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1674 ret = fimc_register_m2m_device(fimc, sd->v4l2_dev);
1678 ret = fimc_register_capture_device(fimc, sd->v4l2_dev);
1680 fimc_unregister_m2m_device(fimc);
1685 static void fimc_capture_subdev_unregistered(struct v4l2_subdev *sd)
1687 struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1692 fimc_unregister_m2m_device(fimc);
1694 if (fimc->vid_cap.vfd) {
1695 media_entity_cleanup(&fimc->vid_cap.vfd->entity);
1696 video_unregister_device(fimc->vid_cap.vfd);
1697 fimc->vid_cap.vfd = NULL;
1700 kfree(fimc->vid_cap.ctx);
1701 fimc->vid_cap.ctx = NULL;
1704 static const struct v4l2_subdev_internal_ops fimc_capture_sd_internal_ops = {
1705 .registered = fimc_capture_subdev_registered,
1706 .unregistered = fimc_capture_subdev_unregistered,
1709 int fimc_initialize_capture_subdev(struct fimc_dev *fimc)
1711 struct v4l2_subdev *sd = &fimc->vid_cap.subdev;
1714 v4l2_subdev_init(sd, &fimc_subdev_ops);
1715 sd->flags = V4L2_SUBDEV_FL_HAS_DEVNODE;
1716 snprintf(sd->name, sizeof(sd->name), "FIMC.%d", fimc->pdev->id);
1718 fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
1719 fimc->vid_cap.sd_pads[FIMC_SD_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
1720 ret = media_entity_init(&sd->entity, FIMC_SD_PADS_NUM,
1721 fimc->vid_cap.sd_pads, 0);
1725 sd->entity.ops = &fimc_sd_media_ops;
1726 sd->internal_ops = &fimc_capture_sd_internal_ops;
1727 v4l2_set_subdevdata(sd, fimc);
1731 void fimc_unregister_capture_subdev(struct fimc_dev *fimc)
1733 struct v4l2_subdev *sd = &fimc->vid_cap.subdev;
1735 v4l2_device_unregister_subdev(sd);
1736 media_entity_cleanup(&sd->entity);
1737 v4l2_set_subdevdata(sd, NULL);