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_call(fimc
, set_stream
,
127 static int fimc_stop_capture(struct fimc_dev
*fimc
, bool suspend
)
131 if (!fimc_capture_active(fimc
))
134 spin_lock_irqsave(&fimc
->slock
, flags
);
135 set_bit(ST_CAPT_SHUT
, &fimc
->state
);
136 fimc_deactivate_capture(fimc
);
137 spin_unlock_irqrestore(&fimc
->slock
, flags
);
139 wait_event_timeout(fimc
->irq_queue
,
140 !test_bit(ST_CAPT_SHUT
, &fimc
->state
),
141 (2*HZ
/10)); /* 200 ms */
143 return fimc_capture_state_cleanup(fimc
, suspend
);
147 * fimc_capture_config_update - apply the camera interface configuration
149 * To be called from within the interrupt handler with fimc.slock
150 * spinlock held. It updates the camera pixel crop, rotation and
153 static int fimc_capture_config_update(struct fimc_ctx
*ctx
)
155 struct fimc_dev
*fimc
= ctx
->fimc_dev
;
158 fimc_hw_set_camera_offset(fimc
, &ctx
->s_frame
);
160 ret
= fimc_set_scaler_info(ctx
);
164 fimc_hw_set_prescaler(ctx
);
165 fimc_hw_set_mainscaler(ctx
);
166 fimc_hw_set_target_format(ctx
);
167 fimc_hw_set_rotation(ctx
);
168 fimc_hw_set_effect(ctx
);
169 fimc_prepare_dma_offset(ctx
, &ctx
->d_frame
);
170 fimc_hw_set_out_dma(ctx
);
171 if (fimc
->variant
->has_alpha
)
172 fimc_hw_set_rgb_alpha(ctx
);
174 clear_bit(ST_CAPT_APPLY_CFG
, &fimc
->state
);
178 void fimc_capture_irq_handler(struct fimc_dev
*fimc
, int deq_buf
)
180 struct v4l2_subdev
*csis
= fimc
->pipeline
.subdevs
[IDX_CSIS
];
181 struct fimc_vid_cap
*cap
= &fimc
->vid_cap
;
182 struct fimc_frame
*f
= &cap
->ctx
->d_frame
;
183 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 ktime_get_real_ts(&ts
);
196 v_buf
= fimc_active_queue_pop(cap
);
198 tv
= &v_buf
->vb
.v4l2_buf
.timestamp
;
199 tv
->tv_sec
= ts
.tv_sec
;
200 tv
->tv_usec
= ts
.tv_nsec
/ NSEC_PER_USEC
;
201 v_buf
->vb
.v4l2_buf
.sequence
= cap
->frame_count
++;
203 vb2_buffer_done(&v_buf
->vb
, VB2_BUF_STATE_DONE
);
206 if (!list_empty(&cap
->pending_buf_q
)) {
208 v_buf
= fimc_pending_queue_pop(cap
);
209 fimc_hw_set_output_addr(fimc
, &v_buf
->paddr
, cap
->buf_index
);
210 v_buf
->index
= cap
->buf_index
;
212 /* Move the buffer to the capture active queue */
213 fimc_active_queue_add(cap
, v_buf
);
215 dbg("next frame: %d, done frame: %d",
216 fimc_hw_get_frame_index(fimc
), v_buf
->index
);
218 if (++cap
->buf_index
>= FIMC_MAX_OUT_BUFS
)
222 * Set up a buffer at MIPI-CSIS if current image format
223 * requires the frame embedded data capture.
225 if (f
->fmt
->mdataplanes
&& !list_empty(&cap
->active_buf_q
)) {
226 unsigned int plane
= ffs(f
->fmt
->mdataplanes
) - 1;
227 unsigned int size
= f
->payload
[plane
];
228 s32 index
= fimc_hw_get_frame_index(fimc
);
231 list_for_each_entry(v_buf
, &cap
->active_buf_q
, list
) {
232 if (v_buf
->index
!= index
)
234 vaddr
= vb2_plane_vaddr(&v_buf
->vb
, plane
);
235 v4l2_subdev_call(csis
, video
, s_rx_buffer
,
241 if (cap
->active_buf_cnt
== 0) {
243 clear_bit(ST_CAPT_RUN
, &fimc
->state
);
245 if (++cap
->buf_index
>= FIMC_MAX_OUT_BUFS
)
248 set_bit(ST_CAPT_RUN
, &fimc
->state
);
251 if (test_bit(ST_CAPT_APPLY_CFG
, &fimc
->state
))
252 fimc_capture_config_update(cap
->ctx
);
254 if (cap
->active_buf_cnt
== 1) {
255 fimc_deactivate_capture(fimc
);
256 clear_bit(ST_CAPT_STREAM
, &fimc
->state
);
259 dbg("frame: %d, active_buf_cnt: %d",
260 fimc_hw_get_frame_index(fimc
), cap
->active_buf_cnt
);
264 static int start_streaming(struct vb2_queue
*q
, unsigned int count
)
266 struct fimc_ctx
*ctx
= q
->drv_priv
;
267 struct fimc_dev
*fimc
= ctx
->fimc_dev
;
268 struct fimc_vid_cap
*vid_cap
= &fimc
->vid_cap
;
272 vid_cap
->frame_count
= 0;
274 ret
= fimc_capture_hw_init(fimc
);
276 fimc_capture_state_cleanup(fimc
, false);
280 set_bit(ST_CAPT_PEND
, &fimc
->state
);
282 min_bufs
= fimc
->vid_cap
.reqbufs_count
> 1 ? 2 : 1;
284 if (vid_cap
->active_buf_cnt
>= min_bufs
&&
285 !test_and_set_bit(ST_CAPT_STREAM
, &fimc
->state
)) {
286 fimc_activate_capture(ctx
);
288 if (!test_and_set_bit(ST_CAPT_ISP_STREAM
, &fimc
->state
))
289 fimc_pipeline_call(fimc
, set_stream
,
296 static int stop_streaming(struct vb2_queue
*q
)
298 struct fimc_ctx
*ctx
= q
->drv_priv
;
299 struct fimc_dev
*fimc
= ctx
->fimc_dev
;
301 if (!fimc_capture_active(fimc
))
304 return fimc_stop_capture(fimc
, false);
307 int fimc_capture_suspend(struct fimc_dev
*fimc
)
309 bool suspend
= fimc_capture_busy(fimc
);
311 int ret
= fimc_stop_capture(fimc
, suspend
);
314 return fimc_pipeline_call(fimc
, close
, &fimc
->pipeline
);
317 static void buffer_queue(struct vb2_buffer
*vb
);
319 int fimc_capture_resume(struct fimc_dev
*fimc
)
321 struct fimc_vid_cap
*vid_cap
= &fimc
->vid_cap
;
322 struct fimc_vid_buffer
*buf
;
325 if (!test_and_clear_bit(ST_CAPT_SUSPENDED
, &fimc
->state
))
328 INIT_LIST_HEAD(&fimc
->vid_cap
.active_buf_q
);
329 vid_cap
->buf_index
= 0;
330 fimc_pipeline_call(fimc
, open
, &fimc
->pipeline
,
331 &vid_cap
->vfd
.entity
, false);
332 fimc_capture_hw_init(fimc
);
334 clear_bit(ST_CAPT_SUSPENDED
, &fimc
->state
);
336 for (i
= 0; i
< vid_cap
->reqbufs_count
; i
++) {
337 if (list_empty(&vid_cap
->pending_buf_q
))
339 buf
= fimc_pending_queue_pop(vid_cap
);
340 buffer_queue(&buf
->vb
);
346 static int queue_setup(struct vb2_queue
*vq
, const struct v4l2_format
*pfmt
,
347 unsigned int *num_buffers
, unsigned int *num_planes
,
348 unsigned int sizes
[], void *allocators
[])
350 const struct v4l2_pix_format_mplane
*pixm
= NULL
;
351 struct fimc_ctx
*ctx
= vq
->drv_priv
;
352 struct fimc_frame
*frame
= &ctx
->d_frame
;
353 struct fimc_fmt
*fmt
= frame
->fmt
;
358 pixm
= &pfmt
->fmt
.pix_mp
;
359 fmt
= fimc_find_format(&pixm
->pixelformat
, NULL
,
360 FMT_FLAGS_CAM
| FMT_FLAGS_M2M
, -1);
361 wh
= pixm
->width
* pixm
->height
;
363 wh
= frame
->f_width
* frame
->f_height
;
369 *num_planes
= fmt
->memplanes
;
371 for (i
= 0; i
< fmt
->memplanes
; i
++) {
372 unsigned int size
= (wh
* fmt
->depth
[i
]) / 8;
374 sizes
[i
] = max(size
, pixm
->plane_fmt
[i
].sizeimage
);
375 else if (fimc_fmt_is_user_defined(fmt
->color
))
376 sizes
[i
] = frame
->payload
[i
];
378 sizes
[i
] = max_t(u32
, size
, frame
->payload
[i
]);
380 allocators
[i
] = ctx
->fimc_dev
->alloc_ctx
;
386 static int buffer_prepare(struct vb2_buffer
*vb
)
388 struct vb2_queue
*vq
= vb
->vb2_queue
;
389 struct fimc_ctx
*ctx
= vq
->drv_priv
;
392 if (ctx
->d_frame
.fmt
== NULL
)
395 for (i
= 0; i
< ctx
->d_frame
.fmt
->memplanes
; i
++) {
396 unsigned long size
= ctx
->d_frame
.payload
[i
];
398 if (vb2_plane_size(vb
, i
) < size
) {
399 v4l2_err(&ctx
->fimc_dev
->vid_cap
.vfd
,
400 "User buffer too small (%ld < %ld)\n",
401 vb2_plane_size(vb
, i
), size
);
404 vb2_set_plane_payload(vb
, i
, size
);
410 static void buffer_queue(struct vb2_buffer
*vb
)
412 struct fimc_vid_buffer
*buf
413 = container_of(vb
, struct fimc_vid_buffer
, vb
);
414 struct fimc_ctx
*ctx
= vb2_get_drv_priv(vb
->vb2_queue
);
415 struct fimc_dev
*fimc
= ctx
->fimc_dev
;
416 struct fimc_vid_cap
*vid_cap
= &fimc
->vid_cap
;
420 spin_lock_irqsave(&fimc
->slock
, flags
);
421 fimc_prepare_addr(ctx
, &buf
->vb
, &ctx
->d_frame
, &buf
->paddr
);
423 if (!test_bit(ST_CAPT_SUSPENDED
, &fimc
->state
) &&
424 !test_bit(ST_CAPT_STREAM
, &fimc
->state
) &&
425 vid_cap
->active_buf_cnt
< FIMC_MAX_OUT_BUFS
) {
426 /* Setup the buffer directly for processing. */
427 int buf_id
= (vid_cap
->reqbufs_count
== 1) ? -1 :
430 fimc_hw_set_output_addr(fimc
, &buf
->paddr
, buf_id
);
431 buf
->index
= vid_cap
->buf_index
;
432 fimc_active_queue_add(vid_cap
, buf
);
434 if (++vid_cap
->buf_index
>= FIMC_MAX_OUT_BUFS
)
435 vid_cap
->buf_index
= 0;
437 fimc_pending_queue_add(vid_cap
, buf
);
440 min_bufs
= vid_cap
->reqbufs_count
> 1 ? 2 : 1;
443 if (vb2_is_streaming(&vid_cap
->vbq
) &&
444 vid_cap
->active_buf_cnt
>= min_bufs
&&
445 !test_and_set_bit(ST_CAPT_STREAM
, &fimc
->state
)) {
446 fimc_activate_capture(ctx
);
447 spin_unlock_irqrestore(&fimc
->slock
, flags
);
449 if (!test_and_set_bit(ST_CAPT_ISP_STREAM
, &fimc
->state
))
450 fimc_pipeline_call(fimc
, set_stream
,
454 spin_unlock_irqrestore(&fimc
->slock
, flags
);
457 static void fimc_lock(struct vb2_queue
*vq
)
459 struct fimc_ctx
*ctx
= vb2_get_drv_priv(vq
);
460 mutex_lock(&ctx
->fimc_dev
->lock
);
463 static void fimc_unlock(struct vb2_queue
*vq
)
465 struct fimc_ctx
*ctx
= vb2_get_drv_priv(vq
);
466 mutex_unlock(&ctx
->fimc_dev
->lock
);
469 static struct vb2_ops fimc_capture_qops
= {
470 .queue_setup
= queue_setup
,
471 .buf_prepare
= buffer_prepare
,
472 .buf_queue
= buffer_queue
,
473 .wait_prepare
= fimc_unlock
,
474 .wait_finish
= fimc_lock
,
475 .start_streaming
= start_streaming
,
476 .stop_streaming
= stop_streaming
,
480 * fimc_capture_ctrls_create - initialize the control handler
481 * Initialize the capture video node control handler and fill it
482 * with the FIMC controls. Inherit any sensor's controls if the
483 * 'user_subdev_api' flag is false (default behaviour).
484 * This function need to be called with the graph mutex held.
486 int fimc_capture_ctrls_create(struct fimc_dev
*fimc
)
488 struct fimc_vid_cap
*vid_cap
= &fimc
->vid_cap
;
491 if (WARN_ON(vid_cap
->ctx
== NULL
))
493 if (vid_cap
->ctx
->ctrls
.ready
)
496 ret
= fimc_ctrls_create(vid_cap
->ctx
);
497 if (ret
|| vid_cap
->user_subdev_api
|| !vid_cap
->ctx
->ctrls
.ready
)
500 return v4l2_ctrl_add_handler(&vid_cap
->ctx
->ctrls
.handler
,
501 fimc
->pipeline
.subdevs
[IDX_SENSOR
]->ctrl_handler
, NULL
);
504 static int fimc_capture_set_default_format(struct fimc_dev
*fimc
);
506 static int fimc_capture_open(struct file
*file
)
508 struct fimc_dev
*fimc
= video_drvdata(file
);
511 dbg("pid: %d, state: 0x%lx", task_pid_nr(current
), fimc
->state
);
513 if (mutex_lock_interruptible(&fimc
->lock
))
516 if (fimc_m2m_active(fimc
))
519 set_bit(ST_CAPT_BUSY
, &fimc
->state
);
520 ret
= pm_runtime_get_sync(&fimc
->pdev
->dev
);
524 ret
= v4l2_fh_open(file
);
526 pm_runtime_put(&fimc
->pdev
->dev
);
530 if (++fimc
->vid_cap
.refcnt
== 1) {
531 ret
= fimc_pipeline_call(fimc
, open
, &fimc
->pipeline
,
532 &fimc
->vid_cap
.vfd
.entity
, true);
534 if (!ret
&& !fimc
->vid_cap
.user_subdev_api
)
535 ret
= fimc_capture_set_default_format(fimc
);
538 ret
= fimc_capture_ctrls_create(fimc
);
541 clear_bit(ST_CAPT_BUSY
, &fimc
->state
);
542 pm_runtime_put_sync(&fimc
->pdev
->dev
);
543 fimc
->vid_cap
.refcnt
--;
544 v4l2_fh_release(file
);
548 mutex_unlock(&fimc
->lock
);
552 static int fimc_capture_close(struct file
*file
)
554 struct fimc_dev
*fimc
= video_drvdata(file
);
557 dbg("pid: %d, state: 0x%lx", task_pid_nr(current
), fimc
->state
);
559 if (mutex_lock_interruptible(&fimc
->lock
))
562 if (--fimc
->vid_cap
.refcnt
== 0) {
563 clear_bit(ST_CAPT_BUSY
, &fimc
->state
);
564 fimc_stop_capture(fimc
, false);
565 fimc_pipeline_call(fimc
, close
, &fimc
->pipeline
);
566 clear_bit(ST_CAPT_SUSPENDED
, &fimc
->state
);
569 pm_runtime_put(&fimc
->pdev
->dev
);
571 if (fimc
->vid_cap
.refcnt
== 0) {
572 vb2_queue_release(&fimc
->vid_cap
.vbq
);
573 fimc_ctrls_delete(fimc
->vid_cap
.ctx
);
576 ret
= v4l2_fh_release(file
);
578 mutex_unlock(&fimc
->lock
);
582 static unsigned int fimc_capture_poll(struct file
*file
,
583 struct poll_table_struct
*wait
)
585 struct fimc_dev
*fimc
= video_drvdata(file
);
588 if (mutex_lock_interruptible(&fimc
->lock
))
591 ret
= vb2_poll(&fimc
->vid_cap
.vbq
, file
, wait
);
592 mutex_unlock(&fimc
->lock
);
597 static int fimc_capture_mmap(struct file
*file
, struct vm_area_struct
*vma
)
599 struct fimc_dev
*fimc
= video_drvdata(file
);
602 if (mutex_lock_interruptible(&fimc
->lock
))
605 ret
= vb2_mmap(&fimc
->vid_cap
.vbq
, vma
);
606 mutex_unlock(&fimc
->lock
);
611 static const struct v4l2_file_operations fimc_capture_fops
= {
612 .owner
= THIS_MODULE
,
613 .open
= fimc_capture_open
,
614 .release
= fimc_capture_close
,
615 .poll
= fimc_capture_poll
,
616 .unlocked_ioctl
= video_ioctl2
,
617 .mmap
= fimc_capture_mmap
,
621 * Format and crop negotiation helpers
624 static struct fimc_fmt
*fimc_capture_try_format(struct fimc_ctx
*ctx
,
625 u32
*width
, u32
*height
,
626 u32
*code
, u32
*fourcc
, int pad
)
628 bool rotation
= ctx
->rotation
== 90 || ctx
->rotation
== 270;
629 struct fimc_dev
*fimc
= ctx
->fimc_dev
;
630 struct fimc_variant
*var
= fimc
->variant
;
631 struct fimc_pix_limit
*pl
= var
->pix_limit
;
632 struct fimc_frame
*dst
= &ctx
->d_frame
;
633 u32 depth
, min_w
, max_w
, min_h
, align_h
= 3;
634 u32 mask
= FMT_FLAGS_CAM
;
635 struct fimc_fmt
*ffmt
;
637 /* Conversion from/to JPEG or User Defined format is not supported */
638 if (code
&& ctx
->s_frame
.fmt
&& pad
== FIMC_SD_PAD_SOURCE
&&
639 fimc_fmt_is_user_defined(ctx
->s_frame
.fmt
->color
))
640 *code
= ctx
->s_frame
.fmt
->mbus_code
;
642 if (fourcc
&& *fourcc
!= V4L2_PIX_FMT_JPEG
&& pad
!= FIMC_SD_PAD_SINK
)
643 mask
|= FMT_FLAGS_M2M
;
645 ffmt
= fimc_find_format(fourcc
, code
, mask
, 0);
649 *code
= ffmt
->mbus_code
;
651 *fourcc
= ffmt
->fourcc
;
653 if (pad
== FIMC_SD_PAD_SINK
) {
654 max_w
= fimc_fmt_is_user_defined(ffmt
->color
) ?
655 pl
->scaler_dis_w
: pl
->scaler_en_w
;
656 /* Apply the camera input interface pixel constraints */
657 v4l_bound_align_image(width
, max_t(u32
, *width
, 32), max_w
, 4,
658 height
, max_t(u32
, *height
, 32),
659 FIMC_CAMIF_MAX_HEIGHT
,
660 fimc_fmt_is_user_defined(ffmt
->color
) ?
665 /* Can't scale or crop in transparent (JPEG) transfer mode */
666 if (fimc_fmt_is_user_defined(ffmt
->color
)) {
667 *width
= ctx
->s_frame
.f_width
;
668 *height
= ctx
->s_frame
.f_height
;
671 /* Apply the scaler and the output DMA constraints */
672 max_w
= rotation
? pl
->out_rot_en_w
: pl
->out_rot_dis_w
;
673 if (ctx
->state
& FIMC_COMPOSE
) {
674 min_w
= dst
->offs_h
+ dst
->width
;
675 min_h
= dst
->offs_v
+ dst
->height
;
677 min_w
= var
->min_out_pixsize
;
678 min_h
= var
->min_out_pixsize
;
680 if (var
->min_vsize_align
== 1 && !rotation
)
681 align_h
= fimc_fmt_is_rgb(ffmt
->color
) ? 0 : 1;
683 depth
= fimc_get_format_depth(ffmt
);
684 v4l_bound_align_image(width
, min_w
, max_w
,
685 ffs(var
->min_out_pixsize
) - 1,
686 height
, min_h
, FIMC_CAMIF_MAX_HEIGHT
,
688 64/(ALIGN(depth
, 8)));
690 dbg("pad%d: code: 0x%x, %dx%d. dst fmt: %dx%d",
691 pad
, code
? *code
: 0, *width
, *height
,
692 dst
->f_width
, dst
->f_height
);
697 static void fimc_capture_try_selection(struct fimc_ctx
*ctx
,
701 bool rotate
= ctx
->rotation
== 90 || ctx
->rotation
== 270;
702 struct fimc_dev
*fimc
= ctx
->fimc_dev
;
703 struct fimc_variant
*var
= fimc
->variant
;
704 struct fimc_pix_limit
*pl
= var
->pix_limit
;
705 struct fimc_frame
*sink
= &ctx
->s_frame
;
706 u32 max_w
, max_h
, min_w
= 0, min_h
= 0, min_sz
;
707 u32 align_sz
= 0, align_h
= 4;
708 u32 max_sc_h
, max_sc_v
;
710 /* In JPEG transparent transfer mode cropping is not supported */
711 if (fimc_fmt_is_user_defined(ctx
->d_frame
.fmt
->color
)) {
712 r
->width
= sink
->f_width
;
713 r
->height
= sink
->f_height
;
714 r
->left
= r
->top
= 0;
717 if (target
== V4L2_SEL_TGT_COMPOSE
) {
718 if (ctx
->rotation
!= 90 && ctx
->rotation
!= 270)
720 max_sc_h
= min(SCALER_MAX_HRATIO
, 1 << (ffs(sink
->width
) - 3));
721 max_sc_v
= min(SCALER_MAX_VRATIO
, 1 << (ffs(sink
->height
) - 1));
722 min_sz
= var
->min_out_pixsize
;
724 u32 depth
= fimc_get_format_depth(sink
->fmt
);
725 align_sz
= 64/ALIGN(depth
, 8);
726 min_sz
= var
->min_inp_pixsize
;
727 min_w
= min_h
= min_sz
;
728 max_sc_h
= max_sc_v
= 1;
731 * For the compose rectangle the following constraints must be met:
732 * - it must fit in the sink pad format rectangle (f_width/f_height);
733 * - maximum downscaling ratio is 64;
734 * - maximum crop size depends if the rotator is used or not;
735 * - the sink pad format width/height must be 4 multiple of the
736 * prescaler ratios determined by sink pad size and source pad crop,
737 * the prescaler ratio is returned by fimc_get_scaler_factor().
740 rotate
? pl
->out_rot_en_w
: pl
->out_rot_dis_w
,
741 rotate
? sink
->f_height
: sink
->f_width
);
742 max_h
= min_t(u32
, FIMC_CAMIF_MAX_HEIGHT
, sink
->f_height
);
744 if (target
== V4L2_SEL_TGT_COMPOSE
) {
745 min_w
= min_t(u32
, max_w
, sink
->f_width
/ max_sc_h
);
746 min_h
= min_t(u32
, max_h
, sink
->f_height
/ max_sc_v
);
748 swap(max_sc_h
, max_sc_v
);
752 v4l_bound_align_image(&r
->width
, min_w
, max_w
, ffs(min_sz
) - 1,
753 &r
->height
, min_h
, max_h
, align_h
,
755 /* Adjust left/top if crop/compose rectangle is out of bounds */
756 r
->left
= clamp_t(u32
, r
->left
, 0, sink
->f_width
- r
->width
);
757 r
->top
= clamp_t(u32
, r
->top
, 0, sink
->f_height
- r
->height
);
758 r
->left
= round_down(r
->left
, var
->hor_offs_align
);
760 dbg("target %#x: (%d,%d)/%dx%d, sink fmt: %dx%d",
761 target
, r
->left
, r
->top
, r
->width
, r
->height
,
762 sink
->f_width
, sink
->f_height
);
766 * The video node ioctl operations
768 static int fimc_vidioc_querycap_capture(struct file
*file
, void *priv
,
769 struct v4l2_capability
*cap
)
771 struct fimc_dev
*fimc
= video_drvdata(file
);
773 strncpy(cap
->driver
, fimc
->pdev
->name
, sizeof(cap
->driver
) - 1);
774 strncpy(cap
->card
, fimc
->pdev
->name
, sizeof(cap
->card
) - 1);
775 cap
->bus_info
[0] = 0;
776 cap
->capabilities
= V4L2_CAP_STREAMING
| V4L2_CAP_VIDEO_CAPTURE_MPLANE
;
781 static int fimc_cap_enum_fmt_mplane(struct file
*file
, void *priv
,
782 struct v4l2_fmtdesc
*f
)
784 struct fimc_fmt
*fmt
;
786 fmt
= fimc_find_format(NULL
, NULL
, FMT_FLAGS_CAM
| FMT_FLAGS_M2M
,
790 strncpy(f
->description
, fmt
->name
, sizeof(f
->description
) - 1);
791 f
->pixelformat
= fmt
->fourcc
;
792 if (fmt
->fourcc
== V4L2_MBUS_FMT_JPEG_1X8
)
793 f
->flags
|= V4L2_FMT_FLAG_COMPRESSED
;
798 * fimc_pipeline_try_format - negotiate and/or set formats at pipeline
800 * @ctx: FIMC capture context
801 * @tfmt: media bus format to try/set on subdevs
802 * @fmt_id: fimc pixel format id corresponding to returned @tfmt (output)
803 * @set: true to set format on subdevs, false to try only
805 static int fimc_pipeline_try_format(struct fimc_ctx
*ctx
,
806 struct v4l2_mbus_framefmt
*tfmt
,
807 struct fimc_fmt
**fmt_id
,
810 struct fimc_dev
*fimc
= ctx
->fimc_dev
;
811 struct v4l2_subdev
*sd
= fimc
->pipeline
.subdevs
[IDX_SENSOR
];
812 struct v4l2_subdev
*csis
= fimc
->pipeline
.subdevs
[IDX_CSIS
];
813 struct v4l2_subdev_format sfmt
;
814 struct v4l2_mbus_framefmt
*mf
= &sfmt
.format
;
815 struct fimc_fmt
*ffmt
= NULL
;
818 if (WARN_ON(!sd
|| !tfmt
))
821 memset(&sfmt
, 0, sizeof(sfmt
));
824 sfmt
.which
= set
? V4L2_SUBDEV_FORMAT_ACTIVE
: V4L2_SUBDEV_FORMAT_TRY
;
826 ffmt
= fimc_find_format(NULL
, mf
->code
!= 0 ? &mf
->code
: NULL
,
830 * Notify user-space if common pixel code for
831 * host and sensor does not exist.
835 mf
->code
= tfmt
->code
= ffmt
->mbus_code
;
837 ret
= v4l2_subdev_call(sd
, pad
, set_fmt
, NULL
, &sfmt
);
840 if (mf
->code
!= tfmt
->code
) {
844 if (mf
->width
!= tfmt
->width
|| mf
->height
!= tfmt
->height
) {
845 u32 fcc
= ffmt
->fourcc
;
846 tfmt
->width
= mf
->width
;
847 tfmt
->height
= mf
->height
;
848 ffmt
= fimc_capture_try_format(ctx
,
849 &tfmt
->width
, &tfmt
->height
,
850 NULL
, &fcc
, FIMC_SD_PAD_SOURCE
);
851 if (ffmt
&& ffmt
->mbus_code
)
852 mf
->code
= ffmt
->mbus_code
;
853 if (mf
->width
!= tfmt
->width
||
854 mf
->height
!= tfmt
->height
)
856 tfmt
->code
= mf
->code
;
859 ret
= v4l2_subdev_call(csis
, pad
, set_fmt
, NULL
, &sfmt
);
861 if (mf
->code
== tfmt
->code
&&
862 mf
->width
== tfmt
->width
&& mf
->height
== tfmt
->height
)
870 dbg("code: 0x%x, %dx%d, %p", mf
->code
, mf
->width
, mf
->height
, ffmt
);
875 * fimc_get_sensor_frame_desc - query the sensor for media bus frame parameters
876 * @sensor: pointer to the sensor subdev
877 * @plane_fmt: provides plane sizes corresponding to the frame layout entries
878 * @try: true to set the frame parameters, false to query only
880 * This function is used by this driver only for compressed/blob data formats.
882 static int fimc_get_sensor_frame_desc(struct v4l2_subdev
*sensor
,
883 struct v4l2_plane_pix_format
*plane_fmt
,
884 unsigned int num_planes
, bool try)
886 struct v4l2_mbus_frame_desc fd
;
889 for (i
= 0; i
< num_planes
; i
++)
890 fd
.entry
[i
].length
= plane_fmt
[i
].sizeimage
;
893 ret
= v4l2_subdev_call(sensor
, pad
, set_frame_desc
, 0, &fd
);
895 ret
= v4l2_subdev_call(sensor
, pad
, get_frame_desc
, 0, &fd
);
900 if (num_planes
!= fd
.num_entries
)
903 for (i
= 0; i
< num_planes
; i
++)
904 plane_fmt
[i
].sizeimage
= fd
.entry
[i
].length
;
906 if (fd
.entry
[0].length
> FIMC_MAX_JPEG_BUF_SIZE
) {
907 v4l2_err(sensor
->v4l2_dev
, "Unsupported buffer size: %u\n",
916 static int fimc_cap_g_fmt_mplane(struct file
*file
, void *fh
,
917 struct v4l2_format
*f
)
919 struct fimc_dev
*fimc
= video_drvdata(file
);
920 struct fimc_ctx
*ctx
= fimc
->vid_cap
.ctx
;
922 return fimc_fill_format(&ctx
->d_frame
, f
);
925 static int fimc_cap_try_fmt_mplane(struct file
*file
, void *fh
,
926 struct v4l2_format
*f
)
928 struct v4l2_pix_format_mplane
*pix
= &f
->fmt
.pix_mp
;
929 struct fimc_dev
*fimc
= video_drvdata(file
);
930 struct fimc_ctx
*ctx
= fimc
->vid_cap
.ctx
;
931 struct v4l2_mbus_framefmt mf
;
932 struct fimc_fmt
*ffmt
= NULL
;
934 if (fimc_jpeg_fourcc(pix
->pixelformat
)) {
935 fimc_capture_try_format(ctx
, &pix
->width
, &pix
->height
,
936 NULL
, &pix
->pixelformat
,
938 ctx
->s_frame
.f_width
= pix
->width
;
939 ctx
->s_frame
.f_height
= pix
->height
;
941 ffmt
= fimc_capture_try_format(ctx
, &pix
->width
, &pix
->height
,
942 NULL
, &pix
->pixelformat
,
947 if (!fimc
->vid_cap
.user_subdev_api
) {
948 mf
.width
= pix
->width
;
949 mf
.height
= pix
->height
;
950 mf
.code
= ffmt
->mbus_code
;
951 fimc_md_graph_lock(fimc
);
952 fimc_pipeline_try_format(ctx
, &mf
, &ffmt
, false);
953 fimc_md_graph_unlock(fimc
);
954 pix
->width
= mf
.width
;
955 pix
->height
= mf
.height
;
957 pix
->pixelformat
= ffmt
->fourcc
;
960 fimc_adjust_mplane_format(ffmt
, pix
->width
, pix
->height
, pix
);
962 if (ffmt
->flags
& FMT_FLAGS_COMPRESSED
)
963 fimc_get_sensor_frame_desc(fimc
->pipeline
.subdevs
[IDX_SENSOR
],
964 pix
->plane_fmt
, ffmt
->memplanes
, true);
969 static void fimc_capture_mark_jpeg_xfer(struct fimc_ctx
*ctx
,
970 enum fimc_color_fmt color
)
972 bool jpeg
= fimc_fmt_is_user_defined(color
);
974 ctx
->scaler
.enabled
= !jpeg
;
975 fimc_ctrls_activate(ctx
, !jpeg
);
978 set_bit(ST_CAPT_JPEG
, &ctx
->fimc_dev
->state
);
980 clear_bit(ST_CAPT_JPEG
, &ctx
->fimc_dev
->state
);
983 static int fimc_capture_set_format(struct fimc_dev
*fimc
, struct v4l2_format
*f
)
985 struct fimc_ctx
*ctx
= fimc
->vid_cap
.ctx
;
986 struct v4l2_pix_format_mplane
*pix
= &f
->fmt
.pix_mp
;
987 struct v4l2_mbus_framefmt
*mf
= &fimc
->vid_cap
.mf
;
988 struct fimc_frame
*ff
= &ctx
->d_frame
;
989 struct fimc_fmt
*s_fmt
= NULL
;
992 if (vb2_is_busy(&fimc
->vid_cap
.vbq
))
995 /* Pre-configure format at camera interface input, for JPEG only */
996 if (fimc_jpeg_fourcc(pix
->pixelformat
)) {
997 fimc_capture_try_format(ctx
, &pix
->width
, &pix
->height
,
998 NULL
, &pix
->pixelformat
,
1000 ctx
->s_frame
.f_width
= pix
->width
;
1001 ctx
->s_frame
.f_height
= pix
->height
;
1003 /* Try the format at the scaler and the DMA output */
1004 ff
->fmt
= fimc_capture_try_format(ctx
, &pix
->width
, &pix
->height
,
1005 NULL
, &pix
->pixelformat
,
1006 FIMC_SD_PAD_SOURCE
);
1010 /* Update RGB Alpha control state and value range */
1011 fimc_alpha_ctrl_update(ctx
);
1013 /* Try to match format at the host and the sensor */
1014 if (!fimc
->vid_cap
.user_subdev_api
) {
1015 mf
->code
= ff
->fmt
->mbus_code
;
1016 mf
->width
= pix
->width
;
1017 mf
->height
= pix
->height
;
1019 fimc_md_graph_lock(fimc
);
1020 ret
= fimc_pipeline_try_format(ctx
, mf
, &s_fmt
, true);
1021 fimc_md_graph_unlock(fimc
);
1024 pix
->width
= mf
->width
;
1025 pix
->height
= mf
->height
;
1028 fimc_adjust_mplane_format(ff
->fmt
, pix
->width
, pix
->height
, pix
);
1030 if (ff
->fmt
->flags
& FMT_FLAGS_COMPRESSED
) {
1031 ret
= fimc_get_sensor_frame_desc(fimc
->pipeline
.subdevs
[IDX_SENSOR
],
1032 pix
->plane_fmt
, ff
->fmt
->memplanes
,
1038 for (i
= 0; i
< ff
->fmt
->memplanes
; i
++)
1039 ff
->payload
[i
] = pix
->plane_fmt
[i
].sizeimage
;
1041 set_frame_bounds(ff
, pix
->width
, pix
->height
);
1042 /* Reset the composition rectangle if not yet configured */
1043 if (!(ctx
->state
& FIMC_COMPOSE
))
1044 set_frame_crop(ff
, 0, 0, pix
->width
, pix
->height
);
1046 fimc_capture_mark_jpeg_xfer(ctx
, ff
->fmt
->color
);
1048 /* Reset cropping and set format at the camera interface input */
1049 if (!fimc
->vid_cap
.user_subdev_api
) {
1050 ctx
->s_frame
.fmt
= s_fmt
;
1051 set_frame_bounds(&ctx
->s_frame
, pix
->width
, pix
->height
);
1052 set_frame_crop(&ctx
->s_frame
, 0, 0, pix
->width
, pix
->height
);
1058 static int fimc_cap_s_fmt_mplane(struct file
*file
, void *priv
,
1059 struct v4l2_format
*f
)
1061 struct fimc_dev
*fimc
= video_drvdata(file
);
1063 return fimc_capture_set_format(fimc
, f
);
1066 static int fimc_cap_enum_input(struct file
*file
, void *priv
,
1067 struct v4l2_input
*i
)
1069 struct fimc_dev
*fimc
= video_drvdata(file
);
1070 struct v4l2_subdev
*sd
= fimc
->pipeline
.subdevs
[IDX_SENSOR
];
1075 i
->type
= V4L2_INPUT_TYPE_CAMERA
;
1077 strlcpy(i
->name
, sd
->name
, sizeof(i
->name
));
1081 static int fimc_cap_s_input(struct file
*file
, void *priv
, unsigned int i
)
1083 return i
== 0 ? i
: -EINVAL
;
1086 static int fimc_cap_g_input(struct file
*file
, void *priv
, unsigned int *i
)
1093 * fimc_pipeline_validate - check for formats inconsistencies
1094 * between source and sink pad of each link
1096 * Return 0 if all formats match or -EPIPE otherwise.
1098 static int fimc_pipeline_validate(struct fimc_dev
*fimc
)
1100 struct v4l2_subdev_format sink_fmt
, src_fmt
;
1101 struct fimc_vid_cap
*vid_cap
= &fimc
->vid_cap
;
1102 struct v4l2_subdev
*sd
;
1103 struct media_pad
*pad
;
1106 /* Start with the video capture node pad */
1107 pad
= media_entity_remote_source(&vid_cap
->vd_pad
);
1110 /* FIMC.{N} subdevice */
1111 sd
= media_entity_to_v4l2_subdev(pad
->entity
);
1114 /* Retrieve format at the sink pad */
1115 pad
= &sd
->entity
.pads
[0];
1116 if (!(pad
->flags
& MEDIA_PAD_FL_SINK
))
1118 /* Don't call FIMC subdev operation to avoid nested locking */
1119 if (sd
== &fimc
->vid_cap
.subdev
) {
1120 struct fimc_frame
*ff
= &vid_cap
->ctx
->s_frame
;
1121 sink_fmt
.format
.width
= ff
->f_width
;
1122 sink_fmt
.format
.height
= ff
->f_height
;
1123 sink_fmt
.format
.code
= ff
->fmt
? ff
->fmt
->mbus_code
: 0;
1125 sink_fmt
.pad
= pad
->index
;
1126 sink_fmt
.which
= V4L2_SUBDEV_FORMAT_ACTIVE
;
1127 ret
= v4l2_subdev_call(sd
, pad
, get_fmt
, NULL
, &sink_fmt
);
1128 if (ret
< 0 && ret
!= -ENOIOCTLCMD
)
1131 /* Retrieve format at the source pad */
1132 pad
= media_entity_remote_source(pad
);
1134 media_entity_type(pad
->entity
) != MEDIA_ENT_T_V4L2_SUBDEV
)
1137 sd
= media_entity_to_v4l2_subdev(pad
->entity
);
1138 src_fmt
.pad
= pad
->index
;
1139 src_fmt
.which
= V4L2_SUBDEV_FORMAT_ACTIVE
;
1140 ret
= v4l2_subdev_call(sd
, pad
, get_fmt
, NULL
, &src_fmt
);
1141 if (ret
< 0 && ret
!= -ENOIOCTLCMD
)
1144 if (src_fmt
.format
.width
!= sink_fmt
.format
.width
||
1145 src_fmt
.format
.height
!= sink_fmt
.format
.height
||
1146 src_fmt
.format
.code
!= sink_fmt
.format
.code
)
1149 if (sd
== fimc
->pipeline
.subdevs
[IDX_SENSOR
] &&
1150 fimc_user_defined_mbus_fmt(src_fmt
.format
.code
)) {
1151 struct v4l2_plane_pix_format plane_fmt
[FIMC_MAX_PLANES
];
1152 struct fimc_frame
*frame
= &vid_cap
->ctx
->d_frame
;
1155 ret
= fimc_get_sensor_frame_desc(sd
, plane_fmt
,
1156 frame
->fmt
->memplanes
,
1161 for (i
= 0; i
< frame
->fmt
->memplanes
; i
++)
1162 if (frame
->payload
[i
] < plane_fmt
[i
].sizeimage
)
1169 static int fimc_cap_streamon(struct file
*file
, void *priv
,
1170 enum v4l2_buf_type type
)
1172 struct fimc_dev
*fimc
= video_drvdata(file
);
1173 struct fimc_pipeline
*p
= &fimc
->pipeline
;
1174 struct v4l2_subdev
*sd
= p
->subdevs
[IDX_SENSOR
];
1177 if (fimc_capture_active(fimc
))
1180 ret
= media_entity_pipeline_start(&sd
->entity
, p
->m_pipeline
);
1184 if (fimc
->vid_cap
.user_subdev_api
) {
1185 ret
= fimc_pipeline_validate(fimc
);
1187 media_entity_pipeline_stop(&sd
->entity
);
1191 return vb2_streamon(&fimc
->vid_cap
.vbq
, type
);
1194 static int fimc_cap_streamoff(struct file
*file
, void *priv
,
1195 enum v4l2_buf_type type
)
1197 struct fimc_dev
*fimc
= video_drvdata(file
);
1198 struct v4l2_subdev
*sd
= fimc
->pipeline
.subdevs
[IDX_SENSOR
];
1201 ret
= vb2_streamoff(&fimc
->vid_cap
.vbq
, type
);
1203 media_entity_pipeline_stop(&sd
->entity
);
1207 static int fimc_cap_reqbufs(struct file
*file
, void *priv
,
1208 struct v4l2_requestbuffers
*reqbufs
)
1210 struct fimc_dev
*fimc
= video_drvdata(file
);
1211 int ret
= vb2_reqbufs(&fimc
->vid_cap
.vbq
, reqbufs
);
1214 fimc
->vid_cap
.reqbufs_count
= reqbufs
->count
;
1218 static int fimc_cap_querybuf(struct file
*file
, void *priv
,
1219 struct v4l2_buffer
*buf
)
1221 struct fimc_dev
*fimc
= video_drvdata(file
);
1223 return vb2_querybuf(&fimc
->vid_cap
.vbq
, buf
);
1226 static int fimc_cap_qbuf(struct file
*file
, void *priv
,
1227 struct v4l2_buffer
*buf
)
1229 struct fimc_dev
*fimc
= video_drvdata(file
);
1231 return vb2_qbuf(&fimc
->vid_cap
.vbq
, buf
);
1234 static int fimc_cap_dqbuf(struct file
*file
, void *priv
,
1235 struct v4l2_buffer
*buf
)
1237 struct fimc_dev
*fimc
= video_drvdata(file
);
1239 return vb2_dqbuf(&fimc
->vid_cap
.vbq
, buf
, file
->f_flags
& O_NONBLOCK
);
1242 static int fimc_cap_create_bufs(struct file
*file
, void *priv
,
1243 struct v4l2_create_buffers
*create
)
1245 struct fimc_dev
*fimc
= video_drvdata(file
);
1247 return vb2_create_bufs(&fimc
->vid_cap
.vbq
, create
);
1250 static int fimc_cap_prepare_buf(struct file
*file
, void *priv
,
1251 struct v4l2_buffer
*b
)
1253 struct fimc_dev
*fimc
= video_drvdata(file
);
1255 return vb2_prepare_buf(&fimc
->vid_cap
.vbq
, b
);
1258 static int fimc_cap_g_selection(struct file
*file
, void *fh
,
1259 struct v4l2_selection
*s
)
1261 struct fimc_dev
*fimc
= video_drvdata(file
);
1262 struct fimc_ctx
*ctx
= fimc
->vid_cap
.ctx
;
1263 struct fimc_frame
*f
= &ctx
->s_frame
;
1265 if (s
->type
!= V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE
)
1268 switch (s
->target
) {
1269 case V4L2_SEL_TGT_COMPOSE_DEFAULT
:
1270 case V4L2_SEL_TGT_COMPOSE_BOUNDS
:
1272 case V4L2_SEL_TGT_CROP_BOUNDS
:
1273 case V4L2_SEL_TGT_CROP_DEFAULT
:
1276 s
->r
.width
= f
->o_width
;
1277 s
->r
.height
= f
->o_height
;
1280 case V4L2_SEL_TGT_COMPOSE
:
1282 case V4L2_SEL_TGT_CROP
:
1283 s
->r
.left
= f
->offs_h
;
1284 s
->r
.top
= f
->offs_v
;
1285 s
->r
.width
= f
->width
;
1286 s
->r
.height
= f
->height
;
1293 /* Return 1 if rectangle a is enclosed in rectangle b, or 0 otherwise. */
1294 static int enclosed_rectangle(struct v4l2_rect
*a
, struct v4l2_rect
*b
)
1296 if (a
->left
< b
->left
|| a
->top
< b
->top
)
1298 if (a
->left
+ a
->width
> b
->left
+ b
->width
)
1300 if (a
->top
+ a
->height
> b
->top
+ b
->height
)
1306 static int fimc_cap_s_selection(struct file
*file
, void *fh
,
1307 struct v4l2_selection
*s
)
1309 struct fimc_dev
*fimc
= video_drvdata(file
);
1310 struct fimc_ctx
*ctx
= fimc
->vid_cap
.ctx
;
1311 struct v4l2_rect rect
= s
->r
;
1312 struct fimc_frame
*f
;
1313 unsigned long flags
;
1315 if (s
->type
!= V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE
)
1318 if (s
->target
== V4L2_SEL_TGT_COMPOSE
)
1320 else if (s
->target
== V4L2_SEL_TGT_CROP
)
1325 fimc_capture_try_selection(ctx
, &rect
, s
->target
);
1327 if (s
->flags
& V4L2_SEL_FLAG_LE
&&
1328 !enclosed_rectangle(&rect
, &s
->r
))
1331 if (s
->flags
& V4L2_SEL_FLAG_GE
&&
1332 !enclosed_rectangle(&s
->r
, &rect
))
1336 spin_lock_irqsave(&fimc
->slock
, flags
);
1337 set_frame_crop(f
, s
->r
.left
, s
->r
.top
, s
->r
.width
,
1339 spin_unlock_irqrestore(&fimc
->slock
, flags
);
1341 set_bit(ST_CAPT_APPLY_CFG
, &fimc
->state
);
1345 static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops
= {
1346 .vidioc_querycap
= fimc_vidioc_querycap_capture
,
1348 .vidioc_enum_fmt_vid_cap_mplane
= fimc_cap_enum_fmt_mplane
,
1349 .vidioc_try_fmt_vid_cap_mplane
= fimc_cap_try_fmt_mplane
,
1350 .vidioc_s_fmt_vid_cap_mplane
= fimc_cap_s_fmt_mplane
,
1351 .vidioc_g_fmt_vid_cap_mplane
= fimc_cap_g_fmt_mplane
,
1353 .vidioc_reqbufs
= fimc_cap_reqbufs
,
1354 .vidioc_querybuf
= fimc_cap_querybuf
,
1356 .vidioc_qbuf
= fimc_cap_qbuf
,
1357 .vidioc_dqbuf
= fimc_cap_dqbuf
,
1359 .vidioc_prepare_buf
= fimc_cap_prepare_buf
,
1360 .vidioc_create_bufs
= fimc_cap_create_bufs
,
1362 .vidioc_streamon
= fimc_cap_streamon
,
1363 .vidioc_streamoff
= fimc_cap_streamoff
,
1365 .vidioc_g_selection
= fimc_cap_g_selection
,
1366 .vidioc_s_selection
= fimc_cap_s_selection
,
1368 .vidioc_enum_input
= fimc_cap_enum_input
,
1369 .vidioc_s_input
= fimc_cap_s_input
,
1370 .vidioc_g_input
= fimc_cap_g_input
,
1373 /* Capture subdev media entity operations */
1374 static int fimc_link_setup(struct media_entity
*entity
,
1375 const struct media_pad
*local
,
1376 const struct media_pad
*remote
, u32 flags
)
1378 struct v4l2_subdev
*sd
= media_entity_to_v4l2_subdev(entity
);
1379 struct fimc_dev
*fimc
= v4l2_get_subdevdata(sd
);
1381 if (media_entity_type(remote
->entity
) != MEDIA_ENT_T_V4L2_SUBDEV
)
1384 if (WARN_ON(fimc
== NULL
))
1387 dbg("%s --> %s, flags: 0x%x. input: 0x%x",
1388 local
->entity
->name
, remote
->entity
->name
, flags
,
1389 fimc
->vid_cap
.input
);
1391 if (flags
& MEDIA_LNK_FL_ENABLED
) {
1392 if (fimc
->vid_cap
.input
!= 0)
1394 fimc
->vid_cap
.input
= sd
->grp_id
;
1398 fimc
->vid_cap
.input
= 0;
1402 static const struct media_entity_operations fimc_sd_media_ops
= {
1403 .link_setup
= fimc_link_setup
,
1407 * fimc_sensor_notify - v4l2_device notification from a sensor subdev
1408 * @sd: pointer to a subdev generating the notification
1409 * @notification: the notification type, must be S5P_FIMC_TX_END_NOTIFY
1410 * @arg: pointer to an u32 type integer that stores the frame payload value
1412 * The End Of Frame notification sent by sensor subdev in its still capture
1413 * mode. If there is only a single VSYNC generated by the sensor at the
1414 * beginning of a frame transmission, FIMC does not issue the LastIrq
1415 * (end of frame) interrupt. And this notification is used to complete the
1416 * frame capture and returning a buffer to user-space. Subdev drivers should
1417 * call this notification from their last 'End of frame capture' interrupt.
1419 void fimc_sensor_notify(struct v4l2_subdev
*sd
, unsigned int notification
,
1422 struct fimc_sensor_info
*sensor
;
1423 struct fimc_vid_buffer
*buf
;
1424 struct fimc_md
*fmd
;
1425 struct fimc_dev
*fimc
;
1426 unsigned long flags
;
1431 sensor
= v4l2_get_subdev_hostdata(sd
);
1432 fmd
= entity_to_fimc_mdev(&sd
->entity
);
1434 spin_lock_irqsave(&fmd
->slock
, flags
);
1435 fimc
= sensor
? sensor
->host
: NULL
;
1437 if (fimc
&& arg
&& notification
== S5P_FIMC_TX_END_NOTIFY
&&
1438 test_bit(ST_CAPT_PEND
, &fimc
->state
)) {
1439 unsigned long irq_flags
;
1440 spin_lock_irqsave(&fimc
->slock
, irq_flags
);
1441 if (!list_empty(&fimc
->vid_cap
.active_buf_q
)) {
1442 buf
= list_entry(fimc
->vid_cap
.active_buf_q
.next
,
1443 struct fimc_vid_buffer
, list
);
1444 vb2_set_plane_payload(&buf
->vb
, 0, *((u32
*)arg
));
1446 fimc_capture_irq_handler(fimc
, 1);
1447 fimc_deactivate_capture(fimc
);
1448 spin_unlock_irqrestore(&fimc
->slock
, irq_flags
);
1450 spin_unlock_irqrestore(&fmd
->slock
, flags
);
1453 static int fimc_subdev_enum_mbus_code(struct v4l2_subdev
*sd
,
1454 struct v4l2_subdev_fh
*fh
,
1455 struct v4l2_subdev_mbus_code_enum
*code
)
1457 struct fimc_fmt
*fmt
;
1459 fmt
= fimc_find_format(NULL
, NULL
, FMT_FLAGS_CAM
, code
->index
);
1462 code
->code
= fmt
->mbus_code
;
1466 static int fimc_subdev_get_fmt(struct v4l2_subdev
*sd
,
1467 struct v4l2_subdev_fh
*fh
,
1468 struct v4l2_subdev_format
*fmt
)
1470 struct fimc_dev
*fimc
= v4l2_get_subdevdata(sd
);
1471 struct fimc_ctx
*ctx
= fimc
->vid_cap
.ctx
;
1472 struct v4l2_mbus_framefmt
*mf
;
1473 struct fimc_frame
*ff
;
1475 if (fmt
->which
== V4L2_SUBDEV_FORMAT_TRY
) {
1476 mf
= v4l2_subdev_get_try_format(fh
, fmt
->pad
);
1481 mf
->colorspace
= V4L2_COLORSPACE_JPEG
;
1482 ff
= fmt
->pad
== FIMC_SD_PAD_SINK
? &ctx
->s_frame
: &ctx
->d_frame
;
1484 mutex_lock(&fimc
->lock
);
1485 /* The pixel code is same on both input and output pad */
1486 if (!WARN_ON(ctx
->s_frame
.fmt
== NULL
))
1487 mf
->code
= ctx
->s_frame
.fmt
->mbus_code
;
1488 mf
->width
= ff
->f_width
;
1489 mf
->height
= ff
->f_height
;
1490 mutex_unlock(&fimc
->lock
);
1495 static int fimc_subdev_set_fmt(struct v4l2_subdev
*sd
,
1496 struct v4l2_subdev_fh
*fh
,
1497 struct v4l2_subdev_format
*fmt
)
1499 struct fimc_dev
*fimc
= v4l2_get_subdevdata(sd
);
1500 struct v4l2_mbus_framefmt
*mf
= &fmt
->format
;
1501 struct fimc_ctx
*ctx
= fimc
->vid_cap
.ctx
;
1502 struct fimc_frame
*ff
;
1503 struct fimc_fmt
*ffmt
;
1505 dbg("pad%d: code: 0x%x, %dx%d",
1506 fmt
->pad
, mf
->code
, mf
->width
, mf
->height
);
1508 if (fmt
->pad
== FIMC_SD_PAD_SOURCE
&&
1509 vb2_is_busy(&fimc
->vid_cap
.vbq
))
1512 mutex_lock(&fimc
->lock
);
1513 ffmt
= fimc_capture_try_format(ctx
, &mf
->width
, &mf
->height
,
1514 &mf
->code
, NULL
, fmt
->pad
);
1515 mutex_unlock(&fimc
->lock
);
1516 mf
->colorspace
= V4L2_COLORSPACE_JPEG
;
1518 if (fmt
->which
== V4L2_SUBDEV_FORMAT_TRY
) {
1519 mf
= v4l2_subdev_get_try_format(fh
, fmt
->pad
);
1523 /* Update RGB Alpha control state and value range */
1524 fimc_alpha_ctrl_update(ctx
);
1526 fimc_capture_mark_jpeg_xfer(ctx
, ffmt
->color
);
1528 ff
= fmt
->pad
== FIMC_SD_PAD_SINK
?
1529 &ctx
->s_frame
: &ctx
->d_frame
;
1531 mutex_lock(&fimc
->lock
);
1532 set_frame_bounds(ff
, mf
->width
, mf
->height
);
1533 fimc
->vid_cap
.mf
= *mf
;
1536 /* Reset the crop rectangle if required. */
1537 if (!(fmt
->pad
== FIMC_SD_PAD_SOURCE
&& (ctx
->state
& FIMC_COMPOSE
)))
1538 set_frame_crop(ff
, 0, 0, mf
->width
, mf
->height
);
1540 if (fmt
->pad
== FIMC_SD_PAD_SINK
)
1541 ctx
->state
&= ~FIMC_COMPOSE
;
1542 mutex_unlock(&fimc
->lock
);
1546 static int fimc_subdev_get_selection(struct v4l2_subdev
*sd
,
1547 struct v4l2_subdev_fh
*fh
,
1548 struct v4l2_subdev_selection
*sel
)
1550 struct fimc_dev
*fimc
= v4l2_get_subdevdata(sd
);
1551 struct fimc_ctx
*ctx
= fimc
->vid_cap
.ctx
;
1552 struct fimc_frame
*f
= &ctx
->s_frame
;
1553 struct v4l2_rect
*r
= &sel
->r
;
1554 struct v4l2_rect
*try_sel
;
1556 if (sel
->pad
!= FIMC_SD_PAD_SINK
)
1559 mutex_lock(&fimc
->lock
);
1561 switch (sel
->target
) {
1562 case V4L2_SEL_TGT_COMPOSE_BOUNDS
:
1564 case V4L2_SEL_TGT_CROP_BOUNDS
:
1565 r
->width
= f
->o_width
;
1566 r
->height
= f
->o_height
;
1569 mutex_unlock(&fimc
->lock
);
1572 case V4L2_SEL_TGT_CROP
:
1573 try_sel
= v4l2_subdev_get_try_crop(fh
, sel
->pad
);
1575 case V4L2_SEL_TGT_COMPOSE
:
1576 try_sel
= v4l2_subdev_get_try_compose(fh
, sel
->pad
);
1580 mutex_unlock(&fimc
->lock
);
1584 if (sel
->which
== V4L2_SUBDEV_FORMAT_TRY
) {
1587 r
->left
= f
->offs_h
;
1589 r
->width
= f
->width
;
1590 r
->height
= f
->height
;
1593 dbg("target %#x: l:%d, t:%d, %dx%d, f_w: %d, f_h: %d",
1594 sel
->pad
, r
->left
, r
->top
, r
->width
, r
->height
,
1595 f
->f_width
, f
->f_height
);
1597 mutex_unlock(&fimc
->lock
);
1601 static int fimc_subdev_set_selection(struct v4l2_subdev
*sd
,
1602 struct v4l2_subdev_fh
*fh
,
1603 struct v4l2_subdev_selection
*sel
)
1605 struct fimc_dev
*fimc
= v4l2_get_subdevdata(sd
);
1606 struct fimc_ctx
*ctx
= fimc
->vid_cap
.ctx
;
1607 struct fimc_frame
*f
= &ctx
->s_frame
;
1608 struct v4l2_rect
*r
= &sel
->r
;
1609 struct v4l2_rect
*try_sel
;
1610 unsigned long flags
;
1612 if (sel
->pad
!= FIMC_SD_PAD_SINK
)
1615 mutex_lock(&fimc
->lock
);
1616 fimc_capture_try_selection(ctx
, r
, V4L2_SEL_TGT_CROP
);
1618 switch (sel
->target
) {
1619 case V4L2_SEL_TGT_COMPOSE_BOUNDS
:
1621 case V4L2_SEL_TGT_CROP_BOUNDS
:
1622 r
->width
= f
->o_width
;
1623 r
->height
= f
->o_height
;
1626 mutex_unlock(&fimc
->lock
);
1629 case V4L2_SEL_TGT_CROP
:
1630 try_sel
= v4l2_subdev_get_try_crop(fh
, sel
->pad
);
1632 case V4L2_SEL_TGT_COMPOSE
:
1633 try_sel
= v4l2_subdev_get_try_compose(fh
, sel
->pad
);
1637 mutex_unlock(&fimc
->lock
);
1641 if (sel
->which
== V4L2_SUBDEV_FORMAT_TRY
) {
1644 spin_lock_irqsave(&fimc
->slock
, flags
);
1645 set_frame_crop(f
, r
->left
, r
->top
, r
->width
, r
->height
);
1646 set_bit(ST_CAPT_APPLY_CFG
, &fimc
->state
);
1647 spin_unlock_irqrestore(&fimc
->slock
, flags
);
1648 if (sel
->target
== V4L2_SEL_TGT_COMPOSE
)
1649 ctx
->state
|= FIMC_COMPOSE
;
1652 dbg("target %#x: (%d,%d)/%dx%d", sel
->target
, r
->left
, r
->top
,
1653 r
->width
, r
->height
);
1655 mutex_unlock(&fimc
->lock
);
1659 static struct v4l2_subdev_pad_ops fimc_subdev_pad_ops
= {
1660 .enum_mbus_code
= fimc_subdev_enum_mbus_code
,
1661 .get_selection
= fimc_subdev_get_selection
,
1662 .set_selection
= fimc_subdev_set_selection
,
1663 .get_fmt
= fimc_subdev_get_fmt
,
1664 .set_fmt
= fimc_subdev_set_fmt
,
1667 static struct v4l2_subdev_ops fimc_subdev_ops
= {
1668 .pad
= &fimc_subdev_pad_ops
,
1671 /* Set default format at the sensor and host interface */
1672 static int fimc_capture_set_default_format(struct fimc_dev
*fimc
)
1674 struct v4l2_format fmt
= {
1675 .type
= V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE
,
1679 .pixelformat
= V4L2_PIX_FMT_YUYV
,
1680 .field
= V4L2_FIELD_NONE
,
1681 .colorspace
= V4L2_COLORSPACE_JPEG
,
1685 return fimc_capture_set_format(fimc
, &fmt
);
1688 /* fimc->lock must be already initialized */
1689 static int fimc_register_capture_device(struct fimc_dev
*fimc
,
1690 struct v4l2_device
*v4l2_dev
)
1692 struct video_device
*vfd
= &fimc
->vid_cap
.vfd
;
1693 struct fimc_vid_cap
*vid_cap
;
1694 struct fimc_ctx
*ctx
;
1695 struct vb2_queue
*q
;
1698 ctx
= kzalloc(sizeof(*ctx
), GFP_KERNEL
);
1702 ctx
->fimc_dev
= fimc
;
1703 ctx
->in_path
= FIMC_IO_CAMERA
;
1704 ctx
->out_path
= FIMC_IO_DMA
;
1705 ctx
->state
= FIMC_CTX_CAP
;
1706 ctx
->s_frame
.fmt
= fimc_find_format(NULL
, NULL
, FMT_FLAGS_CAM
, 0);
1707 ctx
->d_frame
.fmt
= ctx
->s_frame
.fmt
;
1709 memset(vfd
, 0, sizeof(*vfd
));
1710 snprintf(vfd
->name
, sizeof(vfd
->name
), "fimc.%d.capture", fimc
->id
);
1712 vfd
->fops
= &fimc_capture_fops
;
1713 vfd
->ioctl_ops
= &fimc_capture_ioctl_ops
;
1714 vfd
->v4l2_dev
= v4l2_dev
;
1716 vfd
->release
= video_device_release_empty
;
1717 vfd
->lock
= &fimc
->lock
;
1719 video_set_drvdata(vfd
, fimc
);
1721 vid_cap
= &fimc
->vid_cap
;
1722 vid_cap
->active_buf_cnt
= 0;
1723 vid_cap
->reqbufs_count
= 0;
1724 vid_cap
->refcnt
= 0;
1726 INIT_LIST_HEAD(&vid_cap
->pending_buf_q
);
1727 INIT_LIST_HEAD(&vid_cap
->active_buf_q
);
1730 q
= &fimc
->vid_cap
.vbq
;
1731 memset(q
, 0, sizeof(*q
));
1732 q
->type
= V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE
;
1733 q
->io_modes
= VB2_MMAP
| VB2_USERPTR
;
1734 q
->drv_priv
= fimc
->vid_cap
.ctx
;
1735 q
->ops
= &fimc_capture_qops
;
1736 q
->mem_ops
= &vb2_dma_contig_memops
;
1737 q
->buf_struct_size
= sizeof(struct fimc_vid_buffer
);
1739 ret
= vb2_queue_init(q
);
1743 vid_cap
->vd_pad
.flags
= MEDIA_PAD_FL_SINK
;
1744 ret
= media_entity_init(&vfd
->entity
, 1, &vid_cap
->vd_pad
, 0);
1748 ret
= video_register_device(vfd
, VFL_TYPE_GRABBER
, -1);
1752 v4l2_info(v4l2_dev
, "Registered %s as /dev/%s\n",
1753 vfd
->name
, video_device_node_name(vfd
));
1755 vfd
->ctrl_handler
= &ctx
->ctrls
.handler
;
1759 media_entity_cleanup(&vfd
->entity
);
1765 static int fimc_capture_subdev_registered(struct v4l2_subdev
*sd
)
1767 struct fimc_dev
*fimc
= v4l2_get_subdevdata(sd
);
1773 ret
= fimc_register_m2m_device(fimc
, sd
->v4l2_dev
);
1777 ret
= fimc_register_capture_device(fimc
, sd
->v4l2_dev
);
1779 fimc_unregister_m2m_device(fimc
);
1784 static void fimc_capture_subdev_unregistered(struct v4l2_subdev
*sd
)
1786 struct fimc_dev
*fimc
= v4l2_get_subdevdata(sd
);
1791 fimc_unregister_m2m_device(fimc
);
1793 if (video_is_registered(&fimc
->vid_cap
.vfd
)) {
1794 video_unregister_device(&fimc
->vid_cap
.vfd
);
1795 media_entity_cleanup(&fimc
->vid_cap
.vfd
.entity
);
1797 kfree(fimc
->vid_cap
.ctx
);
1798 fimc
->vid_cap
.ctx
= NULL
;
1801 static const struct v4l2_subdev_internal_ops fimc_capture_sd_internal_ops
= {
1802 .registered
= fimc_capture_subdev_registered
,
1803 .unregistered
= fimc_capture_subdev_unregistered
,
1806 int fimc_initialize_capture_subdev(struct fimc_dev
*fimc
)
1808 struct v4l2_subdev
*sd
= &fimc
->vid_cap
.subdev
;
1811 v4l2_subdev_init(sd
, &fimc_subdev_ops
);
1812 sd
->flags
= V4L2_SUBDEV_FL_HAS_DEVNODE
;
1813 snprintf(sd
->name
, sizeof(sd
->name
), "FIMC.%d", fimc
->pdev
->id
);
1815 fimc
->vid_cap
.sd_pads
[FIMC_SD_PAD_SINK
].flags
= MEDIA_PAD_FL_SINK
;
1816 fimc
->vid_cap
.sd_pads
[FIMC_SD_PAD_SOURCE
].flags
= MEDIA_PAD_FL_SOURCE
;
1817 ret
= media_entity_init(&sd
->entity
, FIMC_SD_PADS_NUM
,
1818 fimc
->vid_cap
.sd_pads
, 0);
1822 sd
->entity
.ops
= &fimc_sd_media_ops
;
1823 sd
->internal_ops
= &fimc_capture_sd_internal_ops
;
1824 v4l2_set_subdevdata(sd
, fimc
);
1828 void fimc_unregister_capture_subdev(struct fimc_dev
*fimc
)
1830 struct v4l2_subdev
*sd
= &fimc
->vid_cap
.subdev
;
1832 v4l2_device_unregister_subdev(sd
);
1833 media_entity_cleanup(&sd
->entity
);
1834 v4l2_set_subdevdata(sd
, NULL
);