aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media
diff options
context:
space:
mode:
authorSylwester Nawrocki <s.nawrocki@samsung.com>2012-05-08 14:51:24 -0400
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-05-20 08:15:10 -0400
commit97d974226575227ebafdf3ab009f0212d8a7e223 (patch)
tree15776cc9f7081d54367b0d2e2e33a32070e0be59 /drivers/media
parent41df5bf088a10e54c0613ec4d7350b74d5ab8252 (diff)
[media] s5p-fimc: Move m2m node driver into separate file
Virtually no functional changes, just code reordering. This let us to clearly separate all logical functions available in the driver: fimc capture, mem-to-mem, and later fimc-lite capture, ISP features, etc. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/video/s5p-fimc/Makefile2
-rw-r--r--drivers/media/video/s5p-fimc/fimc-capture.c68
-rw-r--r--drivers/media/video/s5p-fimc/fimc-core.c859
-rw-r--r--drivers/media/video/s5p-fimc/fimc-core.h10
-rw-r--r--drivers/media/video/s5p-fimc/fimc-m2m.c812
5 files changed, 894 insertions, 857 deletions
diff --git a/drivers/media/video/s5p-fimc/Makefile b/drivers/media/video/s5p-fimc/Makefile
index 33dec7f890e7..1da3c6ae7fa8 100644
--- a/drivers/media/video/s5p-fimc/Makefile
+++ b/drivers/media/video/s5p-fimc/Makefile
@@ -1,4 +1,4 @@
1s5p-fimc-objs := fimc-core.o fimc-reg.o fimc-capture.o fimc-mdevice.o 1s5p-fimc-objs := fimc-core.o fimc-reg.o fimc-m2m.o fimc-capture.o fimc-mdevice.o
2s5p-csis-objs := mipi-csis.o 2s5p-csis-objs := mipi-csis.o
3 3
4obj-$(CONFIG_VIDEO_S5P_MIPI_CSIS) += s5p-csis.o 4obj-$(CONFIG_VIDEO_S5P_MIPI_CSIS) += s5p-csis.o
diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c
index be5e4e237297..0051d8161c6c 100644
--- a/drivers/media/video/s5p-fimc/fimc-capture.c
+++ b/drivers/media/video/s5p-fimc/fimc-capture.c
@@ -139,7 +139,7 @@ static int fimc_stop_capture(struct fimc_dev *fimc, bool suspend)
139 * spinlock held. It updates the camera pixel crop, rotation and 139 * spinlock held. It updates the camera pixel crop, rotation and
140 * image flip in H/W. 140 * image flip in H/W.
141 */ 141 */
142int fimc_capture_config_update(struct fimc_ctx *ctx) 142static int fimc_capture_config_update(struct fimc_ctx *ctx)
143{ 143{
144 struct fimc_dev *fimc = ctx->fimc_dev; 144 struct fimc_dev *fimc = ctx->fimc_dev;
145 int ret; 145 int ret;
@@ -166,6 +166,70 @@ int fimc_capture_config_update(struct fimc_ctx *ctx)
166 return ret; 166 return ret;
167} 167}
168 168
169void fimc_capture_irq_handler(struct fimc_dev *fimc, int deq_buf)
170{
171 struct fimc_vid_cap *cap = &fimc->vid_cap;
172 struct fimc_vid_buffer *v_buf;
173 struct timeval *tv;
174 struct timespec ts;
175
176 if (test_and_clear_bit(ST_CAPT_SHUT, &fimc->state)) {
177 wake_up(&fimc->irq_queue);
178 goto done;
179 }
180
181 if (!list_empty(&cap->active_buf_q) &&
182 test_bit(ST_CAPT_RUN, &fimc->state) && deq_buf) {
183 ktime_get_real_ts(&ts);
184
185 v_buf = fimc_active_queue_pop(cap);
186
187 tv = &v_buf->vb.v4l2_buf.timestamp;
188 tv->tv_sec = ts.tv_sec;
189 tv->tv_usec = ts.tv_nsec / NSEC_PER_USEC;
190 v_buf->vb.v4l2_buf.sequence = cap->frame_count++;
191
192 vb2_buffer_done(&v_buf->vb, VB2_BUF_STATE_DONE);
193 }
194
195 if (!list_empty(&cap->pending_buf_q)) {
196
197 v_buf = fimc_pending_queue_pop(cap);
198 fimc_hw_set_output_addr(fimc, &v_buf->paddr, cap->buf_index);
199 v_buf->index = cap->buf_index;
200
201 /* Move the buffer to the capture active queue */
202 fimc_active_queue_add(cap, v_buf);
203
204 dbg("next frame: %d, done frame: %d",
205 fimc_hw_get_frame_index(fimc), v_buf->index);
206
207 if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
208 cap->buf_index = 0;
209 }
210
211 if (cap->active_buf_cnt == 0) {
212 if (deq_buf)
213 clear_bit(ST_CAPT_RUN, &fimc->state);
214
215 if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
216 cap->buf_index = 0;
217 } else {
218 set_bit(ST_CAPT_RUN, &fimc->state);
219 }
220
221 fimc_capture_config_update(cap->ctx);
222done:
223 if (cap->active_buf_cnt == 1) {
224 fimc_deactivate_capture(fimc);
225 clear_bit(ST_CAPT_STREAM, &fimc->state);
226 }
227
228 dbg("frame: %d, active_buf_cnt: %d",
229 fimc_hw_get_frame_index(fimc), cap->active_buf_cnt);
230}
231
232
169static int start_streaming(struct vb2_queue *q, unsigned int count) 233static int start_streaming(struct vb2_queue *q, unsigned int count)
170{ 234{
171 struct fimc_ctx *ctx = q->drv_priv; 235 struct fimc_ctx *ctx = q->drv_priv;
@@ -1245,7 +1309,7 @@ void fimc_sensor_notify(struct v4l2_subdev *sd, unsigned int notification,
1245 struct fimc_vid_buffer, list); 1309 struct fimc_vid_buffer, list);
1246 vb2_set_plane_payload(&buf->vb, 0, *((u32 *)arg)); 1310 vb2_set_plane_payload(&buf->vb, 0, *((u32 *)arg));
1247 } 1311 }
1248 fimc_capture_irq_handler(fimc, true); 1312 fimc_capture_irq_handler(fimc, 1);
1249 fimc_deactivate_capture(fimc); 1313 fimc_deactivate_capture(fimc);
1250 spin_unlock_irqrestore(&fimc->slock, irq_flags); 1314 spin_unlock_irqrestore(&fimc->slock, irq_flags);
1251 } 1315 }
diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c
index f6b9060a0c0f..749db4deefcb 100644
--- a/drivers/media/video/s5p-fimc/fimc-core.c
+++ b/drivers/media/video/s5p-fimc/fimc-core.c
@@ -1,5 +1,5 @@
1/* 1/*
2 * Samsung S5P/EXYNOS4 SoC series camera interface (video postprocessor) driver 2 * Samsung S5P/EXYNOS4 SoC series FIMC (CAMIF) driver
3 * 3 *
4 * Copyright (C) 2010-2011 Samsung Electronics Co., Ltd. 4 * Copyright (C) 2010-2011 Samsung Electronics Co., Ltd.
5 * Contact: Sylwester Nawrocki, <s.nawrocki@samsung.com> 5 * Contact: Sylwester Nawrocki, <s.nawrocki@samsung.com>
@@ -187,12 +187,12 @@ static struct fimc_fmt fimc_formats[] = {
187 }, 187 },
188}; 188};
189 189
190static unsigned int get_m2m_fmt_flags(unsigned int stream_type) 190struct fimc_fmt * fimc_get_format(unsigned int index)
191{ 191{
192 if (stream_type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) 192 if (index >= ARRAY_SIZE(fimc_formats))
193 return FMT_FLAGS_M2M_IN; 193 return NULL;
194 else 194
195 return FMT_FLAGS_M2M_OUT; 195 return &fimc_formats[index];
196} 196}
197 197
198int fimc_check_scaler_ratio(struct fimc_ctx *ctx, int sw, int sh, 198int fimc_check_scaler_ratio(struct fimc_ctx *ctx, int sw, int sh,
@@ -293,126 +293,9 @@ int fimc_set_scaler_info(struct fimc_ctx *ctx)
293 return 0; 293 return 0;
294} 294}
295 295
296static void fimc_m2m_job_finish(struct fimc_ctx *ctx, int vb_state)
297{
298 struct vb2_buffer *src_vb, *dst_vb;
299
300 if (!ctx || !ctx->m2m_ctx)
301 return;
302
303 src_vb = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
304 dst_vb = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
305
306 if (src_vb && dst_vb) {
307 v4l2_m2m_buf_done(src_vb, vb_state);
308 v4l2_m2m_buf_done(dst_vb, vb_state);
309 v4l2_m2m_job_finish(ctx->fimc_dev->m2m.m2m_dev,
310 ctx->m2m_ctx);
311 }
312}
313
314/* Complete the transaction which has been scheduled for execution. */
315static int fimc_m2m_shutdown(struct fimc_ctx *ctx)
316{
317 struct fimc_dev *fimc = ctx->fimc_dev;
318 int ret;
319
320 if (!fimc_m2m_pending(fimc))
321 return 0;
322
323 fimc_ctx_state_set(FIMC_CTX_SHUT, ctx);
324
325 ret = wait_event_timeout(fimc->irq_queue,
326 !fimc_ctx_state_is_set(FIMC_CTX_SHUT, ctx),
327 FIMC_SHUTDOWN_TIMEOUT);
328
329 return ret == 0 ? -ETIMEDOUT : ret;
330}
331
332static int start_streaming(struct vb2_queue *q, unsigned int count)
333{
334 struct fimc_ctx *ctx = q->drv_priv;
335 int ret;
336
337 ret = pm_runtime_get_sync(&ctx->fimc_dev->pdev->dev);
338 return ret > 0 ? 0 : ret;
339}
340
341static int stop_streaming(struct vb2_queue *q)
342{
343 struct fimc_ctx *ctx = q->drv_priv;
344 int ret;
345
346 ret = fimc_m2m_shutdown(ctx);
347 if (ret == -ETIMEDOUT)
348 fimc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR);
349
350 pm_runtime_put(&ctx->fimc_dev->pdev->dev);
351 return 0;
352}
353
354void fimc_capture_irq_handler(struct fimc_dev *fimc, bool final)
355{
356 struct fimc_vid_cap *cap = &fimc->vid_cap;
357 struct fimc_vid_buffer *v_buf;
358 struct timeval *tv;
359 struct timespec ts;
360
361 if (test_and_clear_bit(ST_CAPT_SHUT, &fimc->state)) {
362 wake_up(&fimc->irq_queue);
363 return;
364 }
365
366 if (!list_empty(&cap->active_buf_q) &&
367 test_bit(ST_CAPT_RUN, &fimc->state) && final) {
368 ktime_get_real_ts(&ts);
369
370 v_buf = fimc_active_queue_pop(cap);
371
372 tv = &v_buf->vb.v4l2_buf.timestamp;
373 tv->tv_sec = ts.tv_sec;
374 tv->tv_usec = ts.tv_nsec / NSEC_PER_USEC;
375 v_buf->vb.v4l2_buf.sequence = cap->frame_count++;
376
377 vb2_buffer_done(&v_buf->vb, VB2_BUF_STATE_DONE);
378 }
379
380 if (!list_empty(&cap->pending_buf_q)) {
381
382 v_buf = fimc_pending_queue_pop(cap);
383 fimc_hw_set_output_addr(fimc, &v_buf->paddr, cap->buf_index);
384 v_buf->index = cap->buf_index;
385
386 /* Move the buffer to the capture active queue */
387 fimc_active_queue_add(cap, v_buf);
388
389 dbg("next frame: %d, done frame: %d",
390 fimc_hw_get_frame_index(fimc), v_buf->index);
391
392 if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
393 cap->buf_index = 0;
394 }
395
396 if (cap->active_buf_cnt == 0) {
397 if (final)
398 clear_bit(ST_CAPT_RUN, &fimc->state);
399
400 if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
401 cap->buf_index = 0;
402 } else {
403 set_bit(ST_CAPT_RUN, &fimc->state);
404 }
405
406 fimc_capture_config_update(cap->ctx);
407
408 dbg("frame: %d, active_buf_cnt: %d",
409 fimc_hw_get_frame_index(fimc), cap->active_buf_cnt);
410}
411
412static irqreturn_t fimc_irq_handler(int irq, void *priv) 296static irqreturn_t fimc_irq_handler(int irq, void *priv)
413{ 297{
414 struct fimc_dev *fimc = priv; 298 struct fimc_dev *fimc = priv;
415 struct fimc_vid_cap *cap = &fimc->vid_cap;
416 struct fimc_ctx *ctx; 299 struct fimc_ctx *ctx;
417 300
418 fimc_hw_clear_irq(fimc); 301 fimc_hw_clear_irq(fimc);
@@ -437,12 +320,9 @@ static irqreturn_t fimc_irq_handler(int irq, void *priv)
437 return IRQ_HANDLED; 320 return IRQ_HANDLED;
438 } 321 }
439 } else if (test_bit(ST_CAPT_PEND, &fimc->state)) { 322 } else if (test_bit(ST_CAPT_PEND, &fimc->state)) {
440 fimc_capture_irq_handler(fimc, 323 int last_buf = test_bit(ST_CAPT_JPEG, &fimc->state) &&
441 !test_bit(ST_CAPT_JPEG, &fimc->state)); 324 fimc->vid_cap.reqbufs_count == 1;
442 if (cap->active_buf_cnt == 1) { 325 fimc_capture_irq_handler(fimc, !last_buf);
443 fimc_deactivate_capture(fimc);
444 clear_bit(ST_CAPT_STREAM, &fimc->state);
445 }
446 } 326 }
447out: 327out:
448 spin_unlock(&fimc->slock); 328 spin_unlock(&fimc->slock);
@@ -582,154 +462,6 @@ void fimc_prepare_dma_offset(struct fimc_ctx *ctx, struct fimc_frame *f)
582 f->fmt->color, f->dma_offset.y_h, f->dma_offset.y_v); 462 f->fmt->color, f->dma_offset.y_h, f->dma_offset.y_v);
583} 463}
584 464
585static void fimc_dma_run(void *priv)
586{
587 struct vb2_buffer *vb = NULL;
588 struct fimc_ctx *ctx = priv;
589 struct fimc_frame *sf, *df;
590 struct fimc_dev *fimc;
591 unsigned long flags;
592 u32 ret;
593
594 if (WARN(!ctx, "null hardware context\n"))
595 return;
596
597 fimc = ctx->fimc_dev;
598 spin_lock_irqsave(&fimc->slock, flags);
599 set_bit(ST_M2M_PEND, &fimc->state);
600 sf = &ctx->s_frame;
601 df = &ctx->d_frame;
602
603 if (ctx->state & FIMC_PARAMS) {
604 /* Prepare the DMA offsets for scaler */
605 fimc_prepare_dma_offset(ctx, sf);
606 fimc_prepare_dma_offset(ctx, df);
607 }
608
609 vb = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
610 ret = fimc_prepare_addr(ctx, vb, sf, &sf->paddr);
611 if (ret)
612 goto dma_unlock;
613
614 vb = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
615 ret = fimc_prepare_addr(ctx, vb, df, &df->paddr);
616 if (ret)
617 goto dma_unlock;
618
619 /* Reconfigure hardware if the context has changed. */
620 if (fimc->m2m.ctx != ctx) {
621 ctx->state |= FIMC_PARAMS;
622 fimc->m2m.ctx = ctx;
623 }
624
625 if (ctx->state & FIMC_PARAMS) {
626 fimc_set_yuv_order(ctx);
627 fimc_hw_set_input_path(ctx);
628 fimc_hw_set_in_dma(ctx);
629 ret = fimc_set_scaler_info(ctx);
630 if (ret)
631 goto dma_unlock;
632 fimc_hw_set_prescaler(ctx);
633 fimc_hw_set_mainscaler(ctx);
634 fimc_hw_set_target_format(ctx);
635 fimc_hw_set_rotation(ctx);
636 fimc_hw_set_effect(ctx, false);
637 fimc_hw_set_out_dma(ctx);
638 if (fimc->variant->has_alpha)
639 fimc_hw_set_rgb_alpha(ctx);
640 fimc_hw_set_output_path(ctx);
641 }
642 fimc_hw_set_input_addr(fimc, &sf->paddr);
643 fimc_hw_set_output_addr(fimc, &df->paddr, -1);
644
645 fimc_activate_capture(ctx);
646
647 ctx->state &= (FIMC_CTX_M2M | FIMC_CTX_CAP |
648 FIMC_SRC_FMT | FIMC_DST_FMT);
649 fimc_hw_activate_input_dma(fimc, true);
650dma_unlock:
651 spin_unlock_irqrestore(&fimc->slock, flags);
652}
653
654static void fimc_job_abort(void *priv)
655{
656 fimc_m2m_shutdown(priv);
657}
658
659static int fimc_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
660 unsigned int *num_buffers, unsigned int *num_planes,
661 unsigned int sizes[], void *allocators[])
662{
663 struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
664 struct fimc_frame *f;
665 int i;
666
667 f = ctx_get_frame(ctx, vq->type);
668 if (IS_ERR(f))
669 return PTR_ERR(f);
670 /*
671 * Return number of non-contigous planes (plane buffers)
672 * depending on the configured color format.
673 */
674 if (!f->fmt)
675 return -EINVAL;
676
677 *num_planes = f->fmt->memplanes;
678 for (i = 0; i < f->fmt->memplanes; i++) {
679 sizes[i] = (f->f_width * f->f_height * f->fmt->depth[i]) / 8;
680 allocators[i] = ctx->fimc_dev->alloc_ctx;
681 }
682 return 0;
683}
684
685static int fimc_buf_prepare(struct vb2_buffer *vb)
686{
687 struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
688 struct fimc_frame *frame;
689 int i;
690
691 frame = ctx_get_frame(ctx, vb->vb2_queue->type);
692 if (IS_ERR(frame))
693 return PTR_ERR(frame);
694
695 for (i = 0; i < frame->fmt->memplanes; i++)
696 vb2_set_plane_payload(vb, i, frame->payload[i]);
697
698 return 0;
699}
700
701static void fimc_buf_queue(struct vb2_buffer *vb)
702{
703 struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
704
705 dbg("ctx: %p, ctx->state: 0x%x", ctx, ctx->state);
706
707 if (ctx->m2m_ctx)
708 v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
709}
710
711static void fimc_lock(struct vb2_queue *vq)
712{
713 struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
714 mutex_lock(&ctx->fimc_dev->lock);
715}
716
717static void fimc_unlock(struct vb2_queue *vq)
718{
719 struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
720 mutex_unlock(&ctx->fimc_dev->lock);
721}
722
723static struct vb2_ops fimc_qops = {
724 .queue_setup = fimc_queue_setup,
725 .buf_prepare = fimc_buf_prepare,
726 .buf_queue = fimc_buf_queue,
727 .wait_prepare = fimc_unlock,
728 .wait_finish = fimc_lock,
729 .stop_streaming = stop_streaming,
730 .start_streaming = start_streaming,
731};
732
733/* 465/*
734 * V4L2 controls handling 466 * V4L2 controls handling
735 */ 467 */
@@ -877,39 +609,6 @@ void fimc_alpha_ctrl_update(struct fimc_ctx *ctx)
877 v4l2_ctrl_unlock(ctrl); 609 v4l2_ctrl_unlock(ctrl);
878} 610}
879 611
880/*
881 * V4L2 ioctl handlers
882 */
883static int fimc_m2m_querycap(struct file *file, void *fh,
884 struct v4l2_capability *cap)
885{
886 struct fimc_ctx *ctx = fh_to_ctx(fh);
887 struct fimc_dev *fimc = ctx->fimc_dev;
888
889 strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1);
890 strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1);
891 cap->bus_info[0] = 0;
892 cap->capabilities = V4L2_CAP_STREAMING |
893 V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_VIDEO_OUTPUT_MPLANE;
894
895 return 0;
896}
897
898static int fimc_m2m_enum_fmt_mplane(struct file *file, void *priv,
899 struct v4l2_fmtdesc *f)
900{
901 struct fimc_fmt *fmt;
902
903 fmt = fimc_find_format(NULL, NULL, get_m2m_fmt_flags(f->type),
904 f->index);
905 if (!fmt)
906 return -EINVAL;
907
908 strncpy(f->description, fmt->name, sizeof(f->description) - 1);
909 f->pixelformat = fmt->fourcc;
910 return 0;
911}
912
913int fimc_fill_format(struct fimc_frame *frame, struct v4l2_format *f) 612int fimc_fill_format(struct fimc_frame *frame, struct v4l2_format *f)
914{ 613{
915 struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp; 614 struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp;
@@ -988,18 +687,6 @@ void fimc_adjust_mplane_format(struct fimc_fmt *fmt, u32 width, u32 height,
988 } 687 }
989} 688}
990 689
991static int fimc_m2m_g_fmt_mplane(struct file *file, void *fh,
992 struct v4l2_format *f)
993{
994 struct fimc_ctx *ctx = fh_to_ctx(fh);
995 struct fimc_frame *frame = ctx_get_frame(ctx, f->type);
996
997 if (IS_ERR(frame))
998 return PTR_ERR(frame);
999
1000 return fimc_fill_format(frame, f);
1001}
1002
1003/** 690/**
1004 * fimc_find_format - lookup fimc color format by fourcc or media bus format 691 * fimc_find_format - lookup fimc color format by fourcc or media bus format
1005 * @pixelformat: fourcc to match, ignored if null 692 * @pixelformat: fourcc to match, ignored if null
@@ -1032,534 +719,6 @@ struct fimc_fmt *fimc_find_format(const u32 *pixelformat, const u32 *mbus_code,
1032 return def_fmt; 719 return def_fmt;
1033} 720}
1034 721
1035static int fimc_try_fmt_mplane(struct fimc_ctx *ctx, struct v4l2_format *f)
1036{
1037 struct fimc_dev *fimc = ctx->fimc_dev;
1038 struct samsung_fimc_variant *variant = fimc->variant;
1039 struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
1040 struct fimc_fmt *fmt;
1041 u32 max_w, mod_x, mod_y;
1042
1043 if (!IS_M2M(f->type))
1044 return -EINVAL;
1045
1046 dbg("w: %d, h: %d", pix->width, pix->height);
1047
1048 fmt = fimc_find_format(&pix->pixelformat, NULL,
1049 get_m2m_fmt_flags(f->type), 0);
1050 if (WARN(fmt == NULL, "Pixel format lookup failed"))
1051 return -EINVAL;
1052
1053 if (pix->field == V4L2_FIELD_ANY)
1054 pix->field = V4L2_FIELD_NONE;
1055 else if (pix->field != V4L2_FIELD_NONE)
1056 return -EINVAL;
1057
1058 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
1059 max_w = variant->pix_limit->scaler_dis_w;
1060 mod_x = ffs(variant->min_inp_pixsize) - 1;
1061 } else {
1062 max_w = variant->pix_limit->out_rot_dis_w;
1063 mod_x = ffs(variant->min_out_pixsize) - 1;
1064 }
1065
1066 if (tiled_fmt(fmt)) {
1067 mod_x = 6; /* 64 x 32 pixels tile */
1068 mod_y = 5;
1069 } else {
1070 if (variant->min_vsize_align == 1)
1071 mod_y = fimc_fmt_is_rgb(fmt->color) ? 0 : 1;
1072 else
1073 mod_y = ffs(variant->min_vsize_align) - 1;
1074 }
1075
1076 v4l_bound_align_image(&pix->width, 16, max_w, mod_x,
1077 &pix->height, 8, variant->pix_limit->scaler_dis_w, mod_y, 0);
1078
1079 fimc_adjust_mplane_format(fmt, pix->width, pix->height, &f->fmt.pix_mp);
1080 return 0;
1081}
1082
1083static int fimc_m2m_try_fmt_mplane(struct file *file, void *fh,
1084 struct v4l2_format *f)
1085{
1086 struct fimc_ctx *ctx = fh_to_ctx(fh);
1087
1088 return fimc_try_fmt_mplane(ctx, f);
1089}
1090
1091static int fimc_m2m_s_fmt_mplane(struct file *file, void *fh,
1092 struct v4l2_format *f)
1093{
1094 struct fimc_ctx *ctx = fh_to_ctx(fh);
1095 struct fimc_dev *fimc = ctx->fimc_dev;
1096 struct vb2_queue *vq;
1097 struct fimc_frame *frame;
1098 struct v4l2_pix_format_mplane *pix;
1099 int i, ret = 0;
1100
1101 ret = fimc_try_fmt_mplane(ctx, f);
1102 if (ret)
1103 return ret;
1104
1105 vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
1106
1107 if (vb2_is_busy(vq)) {
1108 v4l2_err(fimc->m2m.vfd, "queue (%d) busy\n", f->type);
1109 return -EBUSY;
1110 }
1111
1112 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
1113 frame = &ctx->s_frame;
1114 else
1115 frame = &ctx->d_frame;
1116
1117 pix = &f->fmt.pix_mp;
1118 frame->fmt = fimc_find_format(&pix->pixelformat, NULL,
1119 get_m2m_fmt_flags(f->type), 0);
1120 if (!frame->fmt)
1121 return -EINVAL;
1122
1123 /* Update RGB Alpha control state and value range */
1124 fimc_alpha_ctrl_update(ctx);
1125
1126 for (i = 0; i < frame->fmt->colplanes; i++) {
1127 frame->payload[i] =
1128 (pix->width * pix->height * frame->fmt->depth[i]) / 8;
1129 }
1130
1131 fimc_fill_frame(frame, f);
1132
1133 ctx->scaler.enabled = 1;
1134
1135 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1136 fimc_ctx_state_set(FIMC_PARAMS | FIMC_DST_FMT, ctx);
1137 else
1138 fimc_ctx_state_set(FIMC_PARAMS | FIMC_SRC_FMT, ctx);
1139
1140 dbg("f_w: %d, f_h: %d", frame->f_width, frame->f_height);
1141
1142 return 0;
1143}
1144
1145static int fimc_m2m_reqbufs(struct file *file, void *fh,
1146 struct v4l2_requestbuffers *reqbufs)
1147{
1148 struct fimc_ctx *ctx = fh_to_ctx(fh);
1149
1150 return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
1151}
1152
1153static int fimc_m2m_querybuf(struct file *file, void *fh,
1154 struct v4l2_buffer *buf)
1155{
1156 struct fimc_ctx *ctx = fh_to_ctx(fh);
1157
1158 return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
1159}
1160
1161static int fimc_m2m_qbuf(struct file *file, void *fh,
1162 struct v4l2_buffer *buf)
1163{
1164 struct fimc_ctx *ctx = fh_to_ctx(fh);
1165
1166 return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
1167}
1168
1169static int fimc_m2m_dqbuf(struct file *file, void *fh,
1170 struct v4l2_buffer *buf)
1171{
1172 struct fimc_ctx *ctx = fh_to_ctx(fh);
1173
1174 return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
1175}
1176
1177static int fimc_m2m_streamon(struct file *file, void *fh,
1178 enum v4l2_buf_type type)
1179{
1180 struct fimc_ctx *ctx = fh_to_ctx(fh);
1181
1182 /* The source and target color format need to be set */
1183 if (V4L2_TYPE_IS_OUTPUT(type)) {
1184 if (!fimc_ctx_state_is_set(FIMC_SRC_FMT, ctx))
1185 return -EINVAL;
1186 } else if (!fimc_ctx_state_is_set(FIMC_DST_FMT, ctx)) {
1187 return -EINVAL;
1188 }
1189
1190 return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
1191}
1192
1193static int fimc_m2m_streamoff(struct file *file, void *fh,
1194 enum v4l2_buf_type type)
1195{
1196 struct fimc_ctx *ctx = fh_to_ctx(fh);
1197
1198 return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
1199}
1200
1201static int fimc_m2m_cropcap(struct file *file, void *fh,
1202 struct v4l2_cropcap *cr)
1203{
1204 struct fimc_ctx *ctx = fh_to_ctx(fh);
1205 struct fimc_frame *frame;
1206
1207 frame = ctx_get_frame(ctx, cr->type);
1208 if (IS_ERR(frame))
1209 return PTR_ERR(frame);
1210
1211 cr->bounds.left = 0;
1212 cr->bounds.top = 0;
1213 cr->bounds.width = frame->o_width;
1214 cr->bounds.height = frame->o_height;
1215 cr->defrect = cr->bounds;
1216
1217 return 0;
1218}
1219
1220static int fimc_m2m_g_crop(struct file *file, void *fh, struct v4l2_crop *cr)
1221{
1222 struct fimc_ctx *ctx = fh_to_ctx(fh);
1223 struct fimc_frame *frame;
1224
1225 frame = ctx_get_frame(ctx, cr->type);
1226 if (IS_ERR(frame))
1227 return PTR_ERR(frame);
1228
1229 cr->c.left = frame->offs_h;
1230 cr->c.top = frame->offs_v;
1231 cr->c.width = frame->width;
1232 cr->c.height = frame->height;
1233
1234 return 0;
1235}
1236
1237static int fimc_m2m_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr)
1238{
1239 struct fimc_dev *fimc = ctx->fimc_dev;
1240 struct fimc_frame *f;
1241 u32 min_size, halign, depth = 0;
1242 int i;
1243
1244 if (cr->c.top < 0 || cr->c.left < 0) {
1245 v4l2_err(fimc->m2m.vfd,
1246 "doesn't support negative values for top & left\n");
1247 return -EINVAL;
1248 }
1249 if (cr->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1250 f = &ctx->d_frame;
1251 else if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
1252 f = &ctx->s_frame;
1253 else
1254 return -EINVAL;
1255
1256 min_size = (f == &ctx->s_frame) ?
1257 fimc->variant->min_inp_pixsize : fimc->variant->min_out_pixsize;
1258
1259 /* Get pixel alignment constraints. */
1260 if (fimc->variant->min_vsize_align == 1)
1261 halign = fimc_fmt_is_rgb(f->fmt->color) ? 0 : 1;
1262 else
1263 halign = ffs(fimc->variant->min_vsize_align) - 1;
1264
1265 for (i = 0; i < f->fmt->colplanes; i++)
1266 depth += f->fmt->depth[i];
1267
1268 v4l_bound_align_image(&cr->c.width, min_size, f->o_width,
1269 ffs(min_size) - 1,
1270 &cr->c.height, min_size, f->o_height,
1271 halign, 64/(ALIGN(depth, 8)));
1272
1273 /* adjust left/top if cropping rectangle is out of bounds */
1274 if (cr->c.left + cr->c.width > f->o_width)
1275 cr->c.left = f->o_width - cr->c.width;
1276 if (cr->c.top + cr->c.height > f->o_height)
1277 cr->c.top = f->o_height - cr->c.height;
1278
1279 cr->c.left = round_down(cr->c.left, min_size);
1280 cr->c.top = round_down(cr->c.top, fimc->variant->hor_offs_align);
1281
1282 dbg("l:%d, t:%d, w:%d, h:%d, f_w: %d, f_h: %d",
1283 cr->c.left, cr->c.top, cr->c.width, cr->c.height,
1284 f->f_width, f->f_height);
1285
1286 return 0;
1287}
1288
1289static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
1290{
1291 struct fimc_ctx *ctx = fh_to_ctx(fh);
1292 struct fimc_dev *fimc = ctx->fimc_dev;
1293 struct fimc_frame *f;
1294 int ret;
1295
1296 ret = fimc_m2m_try_crop(ctx, cr);
1297 if (ret)
1298 return ret;
1299
1300 f = (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) ?
1301 &ctx->s_frame : &ctx->d_frame;
1302
1303 /* Check to see if scaling ratio is within supported range */
1304 if (fimc_ctx_state_is_set(FIMC_DST_FMT | FIMC_SRC_FMT, ctx)) {
1305 if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
1306 ret = fimc_check_scaler_ratio(ctx, cr->c.width,
1307 cr->c.height, ctx->d_frame.width,
1308 ctx->d_frame.height, ctx->rotation);
1309 } else {
1310 ret = fimc_check_scaler_ratio(ctx, ctx->s_frame.width,
1311 ctx->s_frame.height, cr->c.width,
1312 cr->c.height, ctx->rotation);
1313 }
1314 if (ret) {
1315 v4l2_err(fimc->m2m.vfd, "Out of scaler range\n");
1316 return -EINVAL;
1317 }
1318 }
1319
1320 f->offs_h = cr->c.left;
1321 f->offs_v = cr->c.top;
1322 f->width = cr->c.width;
1323 f->height = cr->c.height;
1324
1325 fimc_ctx_state_set(FIMC_PARAMS, ctx);
1326
1327 return 0;
1328}
1329
1330static const struct v4l2_ioctl_ops fimc_m2m_ioctl_ops = {
1331 .vidioc_querycap = fimc_m2m_querycap,
1332
1333 .vidioc_enum_fmt_vid_cap_mplane = fimc_m2m_enum_fmt_mplane,
1334 .vidioc_enum_fmt_vid_out_mplane = fimc_m2m_enum_fmt_mplane,
1335
1336 .vidioc_g_fmt_vid_cap_mplane = fimc_m2m_g_fmt_mplane,
1337 .vidioc_g_fmt_vid_out_mplane = fimc_m2m_g_fmt_mplane,
1338
1339 .vidioc_try_fmt_vid_cap_mplane = fimc_m2m_try_fmt_mplane,
1340 .vidioc_try_fmt_vid_out_mplane = fimc_m2m_try_fmt_mplane,
1341
1342 .vidioc_s_fmt_vid_cap_mplane = fimc_m2m_s_fmt_mplane,
1343 .vidioc_s_fmt_vid_out_mplane = fimc_m2m_s_fmt_mplane,
1344
1345 .vidioc_reqbufs = fimc_m2m_reqbufs,
1346 .vidioc_querybuf = fimc_m2m_querybuf,
1347
1348 .vidioc_qbuf = fimc_m2m_qbuf,
1349 .vidioc_dqbuf = fimc_m2m_dqbuf,
1350
1351 .vidioc_streamon = fimc_m2m_streamon,
1352 .vidioc_streamoff = fimc_m2m_streamoff,
1353
1354 .vidioc_g_crop = fimc_m2m_g_crop,
1355 .vidioc_s_crop = fimc_m2m_s_crop,
1356 .vidioc_cropcap = fimc_m2m_cropcap
1357
1358};
1359
1360static int queue_init(void *priv, struct vb2_queue *src_vq,
1361 struct vb2_queue *dst_vq)
1362{
1363 struct fimc_ctx *ctx = priv;
1364 int ret;
1365
1366 memset(src_vq, 0, sizeof(*src_vq));
1367 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1368 src_vq->io_modes = VB2_MMAP | VB2_USERPTR;
1369 src_vq->drv_priv = ctx;
1370 src_vq->ops = &fimc_qops;
1371 src_vq->mem_ops = &vb2_dma_contig_memops;
1372 src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
1373
1374 ret = vb2_queue_init(src_vq);
1375 if (ret)
1376 return ret;
1377
1378 memset(dst_vq, 0, sizeof(*dst_vq));
1379 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1380 dst_vq->io_modes = VB2_MMAP | VB2_USERPTR;
1381 dst_vq->drv_priv = ctx;
1382 dst_vq->ops = &fimc_qops;
1383 dst_vq->mem_ops = &vb2_dma_contig_memops;
1384 dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
1385
1386 return vb2_queue_init(dst_vq);
1387}
1388
1389static int fimc_m2m_open(struct file *file)
1390{
1391 struct fimc_dev *fimc = video_drvdata(file);
1392 struct fimc_ctx *ctx;
1393 int ret;
1394
1395 dbg("pid: %d, state: 0x%lx, refcnt: %d",
1396 task_pid_nr(current), fimc->state, fimc->vid_cap.refcnt);
1397
1398 /*
1399 * Return if the corresponding video capture node
1400 * is already opened.
1401 */
1402 if (fimc->vid_cap.refcnt > 0)
1403 return -EBUSY;
1404
1405 ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
1406 if (!ctx)
1407 return -ENOMEM;
1408 v4l2_fh_init(&ctx->fh, fimc->m2m.vfd);
1409 ctx->fimc_dev = fimc;
1410
1411 /* Default color format */
1412 ctx->s_frame.fmt = &fimc_formats[0];
1413 ctx->d_frame.fmt = &fimc_formats[0];
1414
1415 ret = fimc_ctrls_create(ctx);
1416 if (ret)
1417 goto error_fh;
1418
1419 /* Use separate control handler per file handle */
1420 ctx->fh.ctrl_handler = &ctx->ctrl_handler;
1421 file->private_data = &ctx->fh;
1422 v4l2_fh_add(&ctx->fh);
1423
1424 /* Setup the device context for memory-to-memory mode */
1425 ctx->state = FIMC_CTX_M2M;
1426 ctx->flags = 0;
1427 ctx->in_path = FIMC_DMA;
1428 ctx->out_path = FIMC_DMA;
1429
1430 ctx->m2m_ctx = v4l2_m2m_ctx_init(fimc->m2m.m2m_dev, ctx, queue_init);
1431 if (IS_ERR(ctx->m2m_ctx)) {
1432 ret = PTR_ERR(ctx->m2m_ctx);
1433 goto error_c;
1434 }
1435
1436 if (fimc->m2m.refcnt++ == 0)
1437 set_bit(ST_M2M_RUN, &fimc->state);
1438 return 0;
1439
1440error_c:
1441 fimc_ctrls_delete(ctx);
1442error_fh:
1443 v4l2_fh_del(&ctx->fh);
1444 v4l2_fh_exit(&ctx->fh);
1445 kfree(ctx);
1446 return ret;
1447}
1448
1449static int fimc_m2m_release(struct file *file)
1450{
1451 struct fimc_ctx *ctx = fh_to_ctx(file->private_data);
1452 struct fimc_dev *fimc = ctx->fimc_dev;
1453
1454 dbg("pid: %d, state: 0x%lx, refcnt= %d",
1455 task_pid_nr(current), fimc->state, fimc->m2m.refcnt);
1456
1457 v4l2_m2m_ctx_release(ctx->m2m_ctx);
1458 fimc_ctrls_delete(ctx);
1459 v4l2_fh_del(&ctx->fh);
1460 v4l2_fh_exit(&ctx->fh);
1461
1462 if (--fimc->m2m.refcnt <= 0)
1463 clear_bit(ST_M2M_RUN, &fimc->state);
1464 kfree(ctx);
1465 return 0;
1466}
1467
1468static unsigned int fimc_m2m_poll(struct file *file,
1469 struct poll_table_struct *wait)
1470{
1471 struct fimc_ctx *ctx = fh_to_ctx(file->private_data);
1472
1473 return v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
1474}
1475
1476
1477static int fimc_m2m_mmap(struct file *file, struct vm_area_struct *vma)
1478{
1479 struct fimc_ctx *ctx = fh_to_ctx(file->private_data);
1480
1481 return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
1482}
1483
1484static const struct v4l2_file_operations fimc_m2m_fops = {
1485 .owner = THIS_MODULE,
1486 .open = fimc_m2m_open,
1487 .release = fimc_m2m_release,
1488 .poll = fimc_m2m_poll,
1489 .unlocked_ioctl = video_ioctl2,
1490 .mmap = fimc_m2m_mmap,
1491};
1492
1493static struct v4l2_m2m_ops m2m_ops = {
1494 .device_run = fimc_dma_run,
1495 .job_abort = fimc_job_abort,
1496};
1497
1498int fimc_register_m2m_device(struct fimc_dev *fimc,
1499 struct v4l2_device *v4l2_dev)
1500{
1501 struct video_device *vfd;
1502 struct platform_device *pdev;
1503 int ret = 0;
1504
1505 if (!fimc)
1506 return -ENODEV;
1507
1508 pdev = fimc->pdev;
1509 fimc->v4l2_dev = v4l2_dev;
1510
1511 vfd = video_device_alloc();
1512 if (!vfd) {
1513 v4l2_err(v4l2_dev, "Failed to allocate video device\n");
1514 return -ENOMEM;
1515 }
1516
1517 vfd->fops = &fimc_m2m_fops;
1518 vfd->ioctl_ops = &fimc_m2m_ioctl_ops;
1519 vfd->v4l2_dev = v4l2_dev;
1520 vfd->minor = -1;
1521 vfd->release = video_device_release;
1522 vfd->lock = &fimc->lock;
1523 /* Locking in file operations other than ioctl should be done
1524 by the driver, not the V4L2 core.
1525 This driver needs auditing so that this flag can be removed. */
1526 set_bit(V4L2_FL_LOCK_ALL_FOPS, &vfd->flags);
1527
1528 snprintf(vfd->name, sizeof(vfd->name), "%s.m2m", dev_name(&pdev->dev));
1529 video_set_drvdata(vfd, fimc);
1530
1531 fimc->m2m.vfd = vfd;
1532 fimc->m2m.m2m_dev = v4l2_m2m_init(&m2m_ops);
1533 if (IS_ERR(fimc->m2m.m2m_dev)) {
1534 v4l2_err(v4l2_dev, "failed to initialize v4l2-m2m device\n");
1535 ret = PTR_ERR(fimc->m2m.m2m_dev);
1536 goto err_init;
1537 }
1538
1539 ret = media_entity_init(&vfd->entity, 0, NULL, 0);
1540 if (!ret)
1541 return 0;
1542
1543 v4l2_m2m_release(fimc->m2m.m2m_dev);
1544err_init:
1545 video_device_release(fimc->m2m.vfd);
1546 return ret;
1547}
1548
1549void fimc_unregister_m2m_device(struct fimc_dev *fimc)
1550{
1551 if (!fimc)
1552 return;
1553
1554 if (fimc->m2m.m2m_dev)
1555 v4l2_m2m_release(fimc->m2m.m2m_dev);
1556 if (fimc->m2m.vfd) {
1557 media_entity_cleanup(&fimc->m2m.vfd->entity);
1558 /* Can also be called if video device wasn't registered */
1559 video_unregister_device(fimc->m2m.vfd);
1560 }
1561}
1562
1563static void fimc_clk_put(struct fimc_dev *fimc) 722static void fimc_clk_put(struct fimc_dev *fimc)
1564{ 723{
1565 int i; 724 int i;
diff --git a/drivers/media/video/s5p-fimc/fimc-core.h b/drivers/media/video/s5p-fimc/fimc-core.h
index 7afabb0e1907..288631a86e53 100644
--- a/drivers/media/video/s5p-fimc/fimc-core.h
+++ b/drivers/media/video/s5p-fimc/fimc-core.h
@@ -712,6 +712,7 @@ void fimc_adjust_mplane_format(struct fimc_fmt *fmt, u32 width, u32 height,
712 struct v4l2_pix_format_mplane *pix); 712 struct v4l2_pix_format_mplane *pix);
713struct fimc_fmt *fimc_find_format(const u32 *pixelformat, const u32 *mbus_code, 713struct fimc_fmt *fimc_find_format(const u32 *pixelformat, const u32 *mbus_code,
714 unsigned int mask, int index); 714 unsigned int mask, int index);
715struct fimc_fmt *fimc_get_format(unsigned int index);
715 716
716int fimc_check_scaler_ratio(struct fimc_ctx *ctx, int sw, int sh, 717int fimc_check_scaler_ratio(struct fimc_ctx *ctx, int sw, int sh,
717 int dw, int dh, int rotation); 718 int dw, int dh, int rotation);
@@ -722,7 +723,7 @@ int fimc_prepare_addr(struct fimc_ctx *ctx, struct vb2_buffer *vb,
722void fimc_prepare_dma_offset(struct fimc_ctx *ctx, struct fimc_frame *f); 723void fimc_prepare_dma_offset(struct fimc_ctx *ctx, struct fimc_frame *f);
723void fimc_set_yuv_order(struct fimc_ctx *ctx); 724void fimc_set_yuv_order(struct fimc_ctx *ctx);
724void fimc_fill_frame(struct fimc_frame *frame, struct v4l2_format *f); 725void fimc_fill_frame(struct fimc_frame *frame, struct v4l2_format *f);
725void fimc_capture_irq_handler(struct fimc_dev *fimc, bool done); 726void fimc_capture_irq_handler(struct fimc_dev *fimc, int deq_buf);
726 727
727int fimc_register_m2m_device(struct fimc_dev *fimc, 728int fimc_register_m2m_device(struct fimc_dev *fimc,
728 struct v4l2_device *v4l2_dev); 729 struct v4l2_device *v4l2_dev);
@@ -731,18 +732,19 @@ int fimc_register_driver(void);
731void fimc_unregister_driver(void); 732void fimc_unregister_driver(void);
732 733
733/* -----------------------------------------------------*/ 734/* -----------------------------------------------------*/
735/* fimc-m2m.c */
736void fimc_m2m_job_finish(struct fimc_ctx *ctx, int vb_state);
737
738/* -----------------------------------------------------*/
734/* fimc-capture.c */ 739/* fimc-capture.c */
735int fimc_register_capture_device(struct fimc_dev *fimc, 740int fimc_register_capture_device(struct fimc_dev *fimc,
736 struct v4l2_device *v4l2_dev); 741 struct v4l2_device *v4l2_dev);
737void fimc_unregister_capture_device(struct fimc_dev *fimc); 742void fimc_unregister_capture_device(struct fimc_dev *fimc);
738int fimc_capture_ctrls_create(struct fimc_dev *fimc); 743int fimc_capture_ctrls_create(struct fimc_dev *fimc);
739int fimc_vid_cap_buf_queue(struct fimc_dev *fimc,
740 struct fimc_vid_buffer *fimc_vb);
741void fimc_sensor_notify(struct v4l2_subdev *sd, unsigned int notification, 744void fimc_sensor_notify(struct v4l2_subdev *sd, unsigned int notification,
742 void *arg); 745 void *arg);
743int fimc_capture_suspend(struct fimc_dev *fimc); 746int fimc_capture_suspend(struct fimc_dev *fimc);
744int fimc_capture_resume(struct fimc_dev *fimc); 747int fimc_capture_resume(struct fimc_dev *fimc);
745int fimc_capture_config_update(struct fimc_ctx *ctx);
746 748
747/* Locking: the caller holds fimc->slock */ 749/* Locking: the caller holds fimc->slock */
748static inline void fimc_activate_capture(struct fimc_ctx *ctx) 750static inline void fimc_activate_capture(struct fimc_ctx *ctx)
diff --git a/drivers/media/video/s5p-fimc/fimc-m2m.c b/drivers/media/video/s5p-fimc/fimc-m2m.c
new file mode 100644
index 000000000000..9935cc4bd0cb
--- /dev/null
+++ b/drivers/media/video/s5p-fimc/fimc-m2m.c
@@ -0,0 +1,812 @@
1/*
2 * Samsung S5P/EXYNOS4 SoC series FIMC (video postprocessor) driver
3 *
4 * Copyright (C) 2012 Samsung Electronics Co., Ltd.
5 * Sylwester Nawrocki, <s.nawrocki@samsung.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published
9 * by the Free Software Foundation, either version 2 of the License,
10 * or (at your option) any later version.
11 */
12
13#include <linux/module.h>
14#include <linux/kernel.h>
15#include <linux/types.h>
16#include <linux/errno.h>
17#include <linux/bug.h>
18#include <linux/interrupt.h>
19#include <linux/device.h>
20#include <linux/platform_device.h>
21#include <linux/pm_runtime.h>
22#include <linux/list.h>
23#include <linux/io.h>
24#include <linux/slab.h>
25#include <linux/clk.h>
26#include <media/v4l2-ioctl.h>
27#include <media/videobuf2-core.h>
28#include <media/videobuf2-dma-contig.h>
29
30#include "fimc-core.h"
31#include "fimc-mdevice.h"
32
33
34static unsigned int get_m2m_fmt_flags(unsigned int stream_type)
35{
36 if (stream_type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
37 return FMT_FLAGS_M2M_IN;
38 else
39 return FMT_FLAGS_M2M_OUT;
40}
41
42void fimc_m2m_job_finish(struct fimc_ctx *ctx, int vb_state)
43{
44 struct vb2_buffer *src_vb, *dst_vb;
45
46 if (!ctx || !ctx->m2m_ctx)
47 return;
48
49 src_vb = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
50 dst_vb = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
51
52 if (src_vb && dst_vb) {
53 v4l2_m2m_buf_done(src_vb, vb_state);
54 v4l2_m2m_buf_done(dst_vb, vb_state);
55 v4l2_m2m_job_finish(ctx->fimc_dev->m2m.m2m_dev,
56 ctx->m2m_ctx);
57 }
58}
59
60/* Complete the transaction which has been scheduled for execution. */
61static int fimc_m2m_shutdown(struct fimc_ctx *ctx)
62{
63 struct fimc_dev *fimc = ctx->fimc_dev;
64 int ret;
65
66 if (!fimc_m2m_pending(fimc))
67 return 0;
68
69 fimc_ctx_state_set(FIMC_CTX_SHUT, ctx);
70
71 ret = wait_event_timeout(fimc->irq_queue,
72 !fimc_ctx_state_is_set(FIMC_CTX_SHUT, ctx),
73 FIMC_SHUTDOWN_TIMEOUT);
74
75 return ret == 0 ? -ETIMEDOUT : ret;
76}
77
78static int start_streaming(struct vb2_queue *q, unsigned int count)
79{
80 struct fimc_ctx *ctx = q->drv_priv;
81 int ret;
82
83 ret = pm_runtime_get_sync(&ctx->fimc_dev->pdev->dev);
84 return ret > 0 ? 0 : ret;
85}
86
87static int stop_streaming(struct vb2_queue *q)
88{
89 struct fimc_ctx *ctx = q->drv_priv;
90 int ret;
91
92 ret = fimc_m2m_shutdown(ctx);
93 if (ret == -ETIMEDOUT)
94 fimc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR);
95
96 pm_runtime_put(&ctx->fimc_dev->pdev->dev);
97 return 0;
98}
99
100static void fimc_device_run(void *priv)
101{
102 struct vb2_buffer *vb = NULL;
103 struct fimc_ctx *ctx = priv;
104 struct fimc_frame *sf, *df;
105 struct fimc_dev *fimc;
106 unsigned long flags;
107 u32 ret;
108
109 if (WARN(!ctx, "Null context\n"))
110 return;
111
112 fimc = ctx->fimc_dev;
113 spin_lock_irqsave(&fimc->slock, flags);
114
115 set_bit(ST_M2M_PEND, &fimc->state);
116 sf = &ctx->s_frame;
117 df = &ctx->d_frame;
118
119 if (ctx->state & FIMC_PARAMS) {
120 /* Prepare the DMA offsets for scaler */
121 fimc_prepare_dma_offset(ctx, sf);
122 fimc_prepare_dma_offset(ctx, df);
123 }
124
125 vb = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
126 ret = fimc_prepare_addr(ctx, vb, sf, &sf->paddr);
127 if (ret)
128 goto dma_unlock;
129
130 vb = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
131 ret = fimc_prepare_addr(ctx, vb, df, &df->paddr);
132 if (ret)
133 goto dma_unlock;
134
135 /* Reconfigure hardware if the context has changed. */
136 if (fimc->m2m.ctx != ctx) {
137 ctx->state |= FIMC_PARAMS;
138 fimc->m2m.ctx = ctx;
139 }
140
141 if (ctx->state & FIMC_PARAMS) {
142 fimc_set_yuv_order(ctx);
143 fimc_hw_set_input_path(ctx);
144 fimc_hw_set_in_dma(ctx);
145 ret = fimc_set_scaler_info(ctx);
146 if (ret)
147 goto dma_unlock;
148 fimc_hw_set_prescaler(ctx);
149 fimc_hw_set_mainscaler(ctx);
150 fimc_hw_set_target_format(ctx);
151 fimc_hw_set_rotation(ctx);
152 fimc_hw_set_effect(ctx, false);
153 fimc_hw_set_out_dma(ctx);
154 if (fimc->variant->has_alpha)
155 fimc_hw_set_rgb_alpha(ctx);
156 fimc_hw_set_output_path(ctx);
157 }
158 fimc_hw_set_input_addr(fimc, &sf->paddr);
159 fimc_hw_set_output_addr(fimc, &df->paddr, -1);
160
161 fimc_activate_capture(ctx);
162 ctx->state &= (FIMC_CTX_M2M | FIMC_CTX_CAP |
163 FIMC_SRC_FMT | FIMC_DST_FMT);
164 fimc_hw_activate_input_dma(fimc, true);
165
166dma_unlock:
167 spin_unlock_irqrestore(&fimc->slock, flags);
168}
169
170static void fimc_job_abort(void *priv)
171{
172 fimc_m2m_shutdown(priv);
173}
174
175static int fimc_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
176 unsigned int *num_buffers, unsigned int *num_planes,
177 unsigned int sizes[], void *allocators[])
178{
179 struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
180 struct fimc_frame *f;
181 int i;
182
183 f = ctx_get_frame(ctx, vq->type);
184 if (IS_ERR(f))
185 return PTR_ERR(f);
186 /*
187 * Return number of non-contigous planes (plane buffers)
188 * depending on the configured color format.
189 */
190 if (!f->fmt)
191 return -EINVAL;
192
193 *num_planes = f->fmt->memplanes;
194 for (i = 0; i < f->fmt->memplanes; i++) {
195 sizes[i] = (f->f_width * f->f_height * f->fmt->depth[i]) / 8;
196 allocators[i] = ctx->fimc_dev->alloc_ctx;
197 }
198 return 0;
199}
200
201static int fimc_buf_prepare(struct vb2_buffer *vb)
202{
203 struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
204 struct fimc_frame *frame;
205 int i;
206
207 frame = ctx_get_frame(ctx, vb->vb2_queue->type);
208 if (IS_ERR(frame))
209 return PTR_ERR(frame);
210
211 for (i = 0; i < frame->fmt->memplanes; i++)
212 vb2_set_plane_payload(vb, i, frame->payload[i]);
213
214 return 0;
215}
216
217static void fimc_buf_queue(struct vb2_buffer *vb)
218{
219 struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
220
221 dbg("ctx: %p, ctx->state: 0x%x", ctx, ctx->state);
222
223 if (ctx->m2m_ctx)
224 v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
225}
226
227static void fimc_lock(struct vb2_queue *vq)
228{
229 struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
230 mutex_lock(&ctx->fimc_dev->lock);
231}
232
233static void fimc_unlock(struct vb2_queue *vq)
234{
235 struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
236 mutex_unlock(&ctx->fimc_dev->lock);
237}
238
239static struct vb2_ops fimc_qops = {
240 .queue_setup = fimc_queue_setup,
241 .buf_prepare = fimc_buf_prepare,
242 .buf_queue = fimc_buf_queue,
243 .wait_prepare = fimc_unlock,
244 .wait_finish = fimc_lock,
245 .stop_streaming = stop_streaming,
246 .start_streaming = start_streaming,
247};
248
249/*
250 * V4L2 ioctl handlers
251 */
252static int fimc_m2m_querycap(struct file *file, void *fh,
253 struct v4l2_capability *cap)
254{
255 struct fimc_ctx *ctx = fh_to_ctx(fh);
256 struct fimc_dev *fimc = ctx->fimc_dev;
257
258 strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1);
259 strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1);
260 cap->bus_info[0] = 0;
261 cap->capabilities = V4L2_CAP_STREAMING |
262 V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_VIDEO_OUTPUT_MPLANE;
263
264 return 0;
265}
266
267static int fimc_m2m_enum_fmt_mplane(struct file *file, void *priv,
268 struct v4l2_fmtdesc *f)
269{
270 struct fimc_fmt *fmt;
271
272 fmt = fimc_find_format(NULL, NULL, get_m2m_fmt_flags(f->type),
273 f->index);
274 if (!fmt)
275 return -EINVAL;
276
277 strncpy(f->description, fmt->name, sizeof(f->description) - 1);
278 f->pixelformat = fmt->fourcc;
279 return 0;
280}
281
282static int fimc_m2m_g_fmt_mplane(struct file *file, void *fh,
283 struct v4l2_format *f)
284{
285 struct fimc_ctx *ctx = fh_to_ctx(fh);
286 struct fimc_frame *frame = ctx_get_frame(ctx, f->type);
287
288 if (IS_ERR(frame))
289 return PTR_ERR(frame);
290
291 return fimc_fill_format(frame, f);
292}
293
294static int fimc_try_fmt_mplane(struct fimc_ctx *ctx, struct v4l2_format *f)
295{
296 struct fimc_dev *fimc = ctx->fimc_dev;
297 struct samsung_fimc_variant *variant = fimc->variant;
298 struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
299 struct fimc_fmt *fmt;
300 u32 max_w, mod_x, mod_y;
301
302 if (!IS_M2M(f->type))
303 return -EINVAL;
304
305 dbg("w: %d, h: %d", pix->width, pix->height);
306
307 fmt = fimc_find_format(&pix->pixelformat, NULL,
308 get_m2m_fmt_flags(f->type), 0);
309 if (WARN(fmt == NULL, "Pixel format lookup failed"))
310 return -EINVAL;
311
312 if (pix->field == V4L2_FIELD_ANY)
313 pix->field = V4L2_FIELD_NONE;
314 else if (pix->field != V4L2_FIELD_NONE)
315 return -EINVAL;
316
317 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
318 max_w = variant->pix_limit->scaler_dis_w;
319 mod_x = ffs(variant->min_inp_pixsize) - 1;
320 } else {
321 max_w = variant->pix_limit->out_rot_dis_w;
322 mod_x = ffs(variant->min_out_pixsize) - 1;
323 }
324
325 if (tiled_fmt(fmt)) {
326 mod_x = 6; /* 64 x 32 pixels tile */
327 mod_y = 5;
328 } else {
329 if (variant->min_vsize_align == 1)
330 mod_y = fimc_fmt_is_rgb(fmt->color) ? 0 : 1;
331 else
332 mod_y = ffs(variant->min_vsize_align) - 1;
333 }
334
335 v4l_bound_align_image(&pix->width, 16, max_w, mod_x,
336 &pix->height, 8, variant->pix_limit->scaler_dis_w, mod_y, 0);
337
338 fimc_adjust_mplane_format(fmt, pix->width, pix->height, &f->fmt.pix_mp);
339 return 0;
340}
341
342static int fimc_m2m_try_fmt_mplane(struct file *file, void *fh,
343 struct v4l2_format *f)
344{
345 struct fimc_ctx *ctx = fh_to_ctx(fh);
346
347 return fimc_try_fmt_mplane(ctx, f);
348}
349
350static int fimc_m2m_s_fmt_mplane(struct file *file, void *fh,
351 struct v4l2_format *f)
352{
353 struct fimc_ctx *ctx = fh_to_ctx(fh);
354 struct fimc_dev *fimc = ctx->fimc_dev;
355 struct vb2_queue *vq;
356 struct fimc_frame *frame;
357 struct v4l2_pix_format_mplane *pix;
358 int i, ret = 0;
359
360 ret = fimc_try_fmt_mplane(ctx, f);
361 if (ret)
362 return ret;
363
364 vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
365
366 if (vb2_is_busy(vq)) {
367 v4l2_err(fimc->m2m.vfd, "queue (%d) busy\n", f->type);
368 return -EBUSY;
369 }
370
371 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
372 frame = &ctx->s_frame;
373 else
374 frame = &ctx->d_frame;
375
376 pix = &f->fmt.pix_mp;
377 frame->fmt = fimc_find_format(&pix->pixelformat, NULL,
378 get_m2m_fmt_flags(f->type), 0);
379 if (!frame->fmt)
380 return -EINVAL;
381
382 /* Update RGB Alpha control state and value range */
383 fimc_alpha_ctrl_update(ctx);
384
385 for (i = 0; i < frame->fmt->colplanes; i++) {
386 frame->payload[i] =
387 (pix->width * pix->height * frame->fmt->depth[i]) / 8;
388 }
389
390 fimc_fill_frame(frame, f);
391
392 ctx->scaler.enabled = 1;
393
394 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
395 fimc_ctx_state_set(FIMC_PARAMS | FIMC_DST_FMT, ctx);
396 else
397 fimc_ctx_state_set(FIMC_PARAMS | FIMC_SRC_FMT, ctx);
398
399 dbg("f_w: %d, f_h: %d", frame->f_width, frame->f_height);
400
401 return 0;
402}
403
404static int fimc_m2m_reqbufs(struct file *file, void *fh,
405 struct v4l2_requestbuffers *reqbufs)
406{
407 struct fimc_ctx *ctx = fh_to_ctx(fh);
408
409 return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
410}
411
412static int fimc_m2m_querybuf(struct file *file, void *fh,
413 struct v4l2_buffer *buf)
414{
415 struct fimc_ctx *ctx = fh_to_ctx(fh);
416
417 return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
418}
419
420static int fimc_m2m_qbuf(struct file *file, void *fh,
421 struct v4l2_buffer *buf)
422{
423 struct fimc_ctx *ctx = fh_to_ctx(fh);
424
425 return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
426}
427
428static int fimc_m2m_dqbuf(struct file *file, void *fh,
429 struct v4l2_buffer *buf)
430{
431 struct fimc_ctx *ctx = fh_to_ctx(fh);
432
433 return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
434}
435
436static int fimc_m2m_streamon(struct file *file, void *fh,
437 enum v4l2_buf_type type)
438{
439 struct fimc_ctx *ctx = fh_to_ctx(fh);
440
441 /* The source and target color format need to be set */
442 if (V4L2_TYPE_IS_OUTPUT(type)) {
443 if (!fimc_ctx_state_is_set(FIMC_SRC_FMT, ctx))
444 return -EINVAL;
445 } else if (!fimc_ctx_state_is_set(FIMC_DST_FMT, ctx)) {
446 return -EINVAL;
447 }
448
449 return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
450}
451
452static int fimc_m2m_streamoff(struct file *file, void *fh,
453 enum v4l2_buf_type type)
454{
455 struct fimc_ctx *ctx = fh_to_ctx(fh);
456
457 return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
458}
459
460static int fimc_m2m_cropcap(struct file *file, void *fh,
461 struct v4l2_cropcap *cr)
462{
463 struct fimc_ctx *ctx = fh_to_ctx(fh);
464 struct fimc_frame *frame;
465
466 frame = ctx_get_frame(ctx, cr->type);
467 if (IS_ERR(frame))
468 return PTR_ERR(frame);
469
470 cr->bounds.left = 0;
471 cr->bounds.top = 0;
472 cr->bounds.width = frame->o_width;
473 cr->bounds.height = frame->o_height;
474 cr->defrect = cr->bounds;
475
476 return 0;
477}
478
479static int fimc_m2m_g_crop(struct file *file, void *fh, struct v4l2_crop *cr)
480{
481 struct fimc_ctx *ctx = fh_to_ctx(fh);
482 struct fimc_frame *frame;
483
484 frame = ctx_get_frame(ctx, cr->type);
485 if (IS_ERR(frame))
486 return PTR_ERR(frame);
487
488 cr->c.left = frame->offs_h;
489 cr->c.top = frame->offs_v;
490 cr->c.width = frame->width;
491 cr->c.height = frame->height;
492
493 return 0;
494}
495
496static int fimc_m2m_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr)
497{
498 struct fimc_dev *fimc = ctx->fimc_dev;
499 struct fimc_frame *f;
500 u32 min_size, halign, depth = 0;
501 int i;
502
503 if (cr->c.top < 0 || cr->c.left < 0) {
504 v4l2_err(fimc->m2m.vfd,
505 "doesn't support negative values for top & left\n");
506 return -EINVAL;
507 }
508 if (cr->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
509 f = &ctx->d_frame;
510 else if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
511 f = &ctx->s_frame;
512 else
513 return -EINVAL;
514
515 min_size = (f == &ctx->s_frame) ?
516 fimc->variant->min_inp_pixsize : fimc->variant->min_out_pixsize;
517
518 /* Get pixel alignment constraints. */
519 if (fimc->variant->min_vsize_align == 1)
520 halign = fimc_fmt_is_rgb(f->fmt->color) ? 0 : 1;
521 else
522 halign = ffs(fimc->variant->min_vsize_align) - 1;
523
524 for (i = 0; i < f->fmt->colplanes; i++)
525 depth += f->fmt->depth[i];
526
527 v4l_bound_align_image(&cr->c.width, min_size, f->o_width,
528 ffs(min_size) - 1,
529 &cr->c.height, min_size, f->o_height,
530 halign, 64/(ALIGN(depth, 8)));
531
532 /* adjust left/top if cropping rectangle is out of bounds */
533 if (cr->c.left + cr->c.width > f->o_width)
534 cr->c.left = f->o_width - cr->c.width;
535 if (cr->c.top + cr->c.height > f->o_height)
536 cr->c.top = f->o_height - cr->c.height;
537
538 cr->c.left = round_down(cr->c.left, min_size);
539 cr->c.top = round_down(cr->c.top, fimc->variant->hor_offs_align);
540
541 dbg("l:%d, t:%d, w:%d, h:%d, f_w: %d, f_h: %d",
542 cr->c.left, cr->c.top, cr->c.width, cr->c.height,
543 f->f_width, f->f_height);
544
545 return 0;
546}
547
548static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
549{
550 struct fimc_ctx *ctx = fh_to_ctx(fh);
551 struct fimc_dev *fimc = ctx->fimc_dev;
552 struct fimc_frame *f;
553 int ret;
554
555 ret = fimc_m2m_try_crop(ctx, cr);
556 if (ret)
557 return ret;
558
559 f = (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) ?
560 &ctx->s_frame : &ctx->d_frame;
561
562 /* Check to see if scaling ratio is within supported range */
563 if (fimc_ctx_state_is_set(FIMC_DST_FMT | FIMC_SRC_FMT, ctx)) {
564 if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
565 ret = fimc_check_scaler_ratio(ctx, cr->c.width,
566 cr->c.height, ctx->d_frame.width,
567 ctx->d_frame.height, ctx->rotation);
568 } else {
569 ret = fimc_check_scaler_ratio(ctx, ctx->s_frame.width,
570 ctx->s_frame.height, cr->c.width,
571 cr->c.height, ctx->rotation);
572 }
573 if (ret) {
574 v4l2_err(fimc->m2m.vfd, "Out of scaler range\n");
575 return -EINVAL;
576 }
577 }
578
579 f->offs_h = cr->c.left;
580 f->offs_v = cr->c.top;
581 f->width = cr->c.width;
582 f->height = cr->c.height;
583
584 fimc_ctx_state_set(FIMC_PARAMS, ctx);
585
586 return 0;
587}
588
589static const struct v4l2_ioctl_ops fimc_m2m_ioctl_ops = {
590 .vidioc_querycap = fimc_m2m_querycap,
591 .vidioc_enum_fmt_vid_cap_mplane = fimc_m2m_enum_fmt_mplane,
592 .vidioc_enum_fmt_vid_out_mplane = fimc_m2m_enum_fmt_mplane,
593 .vidioc_g_fmt_vid_cap_mplane = fimc_m2m_g_fmt_mplane,
594 .vidioc_g_fmt_vid_out_mplane = fimc_m2m_g_fmt_mplane,
595 .vidioc_try_fmt_vid_cap_mplane = fimc_m2m_try_fmt_mplane,
596 .vidioc_try_fmt_vid_out_mplane = fimc_m2m_try_fmt_mplane,
597 .vidioc_s_fmt_vid_cap_mplane = fimc_m2m_s_fmt_mplane,
598 .vidioc_s_fmt_vid_out_mplane = fimc_m2m_s_fmt_mplane,
599 .vidioc_reqbufs = fimc_m2m_reqbufs,
600 .vidioc_querybuf = fimc_m2m_querybuf,
601 .vidioc_qbuf = fimc_m2m_qbuf,
602 .vidioc_dqbuf = fimc_m2m_dqbuf,
603 .vidioc_streamon = fimc_m2m_streamon,
604 .vidioc_streamoff = fimc_m2m_streamoff,
605 .vidioc_g_crop = fimc_m2m_g_crop,
606 .vidioc_s_crop = fimc_m2m_s_crop,
607 .vidioc_cropcap = fimc_m2m_cropcap
608
609};
610
611static int queue_init(void *priv, struct vb2_queue *src_vq,
612 struct vb2_queue *dst_vq)
613{
614 struct fimc_ctx *ctx = priv;
615 int ret;
616
617 memset(src_vq, 0, sizeof(*src_vq));
618 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
619 src_vq->io_modes = VB2_MMAP | VB2_USERPTR;
620 src_vq->drv_priv = ctx;
621 src_vq->ops = &fimc_qops;
622 src_vq->mem_ops = &vb2_dma_contig_memops;
623 src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
624
625 ret = vb2_queue_init(src_vq);
626 if (ret)
627 return ret;
628
629 memset(dst_vq, 0, sizeof(*dst_vq));
630 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
631 dst_vq->io_modes = VB2_MMAP | VB2_USERPTR;
632 dst_vq->drv_priv = ctx;
633 dst_vq->ops = &fimc_qops;
634 dst_vq->mem_ops = &vb2_dma_contig_memops;
635 dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
636
637 return vb2_queue_init(dst_vq);
638}
639
640static int fimc_m2m_open(struct file *file)
641{
642 struct fimc_dev *fimc = video_drvdata(file);
643 struct fimc_ctx *ctx;
644 int ret;
645
646 dbg("pid: %d, state: 0x%lx, refcnt: %d",
647 task_pid_nr(current), fimc->state, fimc->vid_cap.refcnt);
648
649 /*
650 * Return if the corresponding video capture node
651 * is already opened.
652 */
653 if (fimc->vid_cap.refcnt > 0)
654 return -EBUSY;
655
656 ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
657 if (!ctx)
658 return -ENOMEM;
659 v4l2_fh_init(&ctx->fh, fimc->m2m.vfd);
660 ctx->fimc_dev = fimc;
661
662 /* Default color format */
663 ctx->s_frame.fmt = fimc_get_format(0);
664 ctx->d_frame.fmt = fimc_get_format(0);
665
666 ret = fimc_ctrls_create(ctx);
667 if (ret)
668 goto error_fh;
669
670 /* Use separate control handler per file handle */
671 ctx->fh.ctrl_handler = &ctx->ctrl_handler;
672 file->private_data = &ctx->fh;
673 v4l2_fh_add(&ctx->fh);
674
675 /* Setup the device context for memory-to-memory mode */
676 ctx->state = FIMC_CTX_M2M;
677 ctx->flags = 0;
678 ctx->in_path = FIMC_DMA;
679 ctx->out_path = FIMC_DMA;
680
681 ctx->m2m_ctx = v4l2_m2m_ctx_init(fimc->m2m.m2m_dev, ctx, queue_init);
682 if (IS_ERR(ctx->m2m_ctx)) {
683 ret = PTR_ERR(ctx->m2m_ctx);
684 goto error_c;
685 }
686
687 if (fimc->m2m.refcnt++ == 0)
688 set_bit(ST_M2M_RUN, &fimc->state);
689 return 0;
690
691error_c:
692 fimc_ctrls_delete(ctx);
693error_fh:
694 v4l2_fh_del(&ctx->fh);
695 v4l2_fh_exit(&ctx->fh);
696 kfree(ctx);
697 return ret;
698}
699
700static int fimc_m2m_release(struct file *file)
701{
702 struct fimc_ctx *ctx = fh_to_ctx(file->private_data);
703 struct fimc_dev *fimc = ctx->fimc_dev;
704
705 dbg("pid: %d, state: 0x%lx, refcnt= %d",
706 task_pid_nr(current), fimc->state, fimc->m2m.refcnt);
707
708 v4l2_m2m_ctx_release(ctx->m2m_ctx);
709 fimc_ctrls_delete(ctx);
710 v4l2_fh_del(&ctx->fh);
711 v4l2_fh_exit(&ctx->fh);
712
713 if (--fimc->m2m.refcnt <= 0)
714 clear_bit(ST_M2M_RUN, &fimc->state);
715 kfree(ctx);
716 return 0;
717}
718
719static unsigned int fimc_m2m_poll(struct file *file,
720 struct poll_table_struct *wait)
721{
722 struct fimc_ctx *ctx = fh_to_ctx(file->private_data);
723
724 return v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
725}
726
727
728static int fimc_m2m_mmap(struct file *file, struct vm_area_struct *vma)
729{
730 struct fimc_ctx *ctx = fh_to_ctx(file->private_data);
731
732 return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
733}
734
735static const struct v4l2_file_operations fimc_m2m_fops = {
736 .owner = THIS_MODULE,
737 .open = fimc_m2m_open,
738 .release = fimc_m2m_release,
739 .poll = fimc_m2m_poll,
740 .unlocked_ioctl = video_ioctl2,
741 .mmap = fimc_m2m_mmap,
742};
743
744static struct v4l2_m2m_ops m2m_ops = {
745 .device_run = fimc_device_run,
746 .job_abort = fimc_job_abort,
747};
748
749int fimc_register_m2m_device(struct fimc_dev *fimc,
750 struct v4l2_device *v4l2_dev)
751{
752 struct video_device *vfd;
753 struct platform_device *pdev;
754 int ret = 0;
755
756 if (!fimc)
757 return -ENODEV;
758
759 pdev = fimc->pdev;
760 fimc->v4l2_dev = v4l2_dev;
761
762 vfd = video_device_alloc();
763 if (!vfd) {
764 v4l2_err(v4l2_dev, "Failed to allocate video device\n");
765 return -ENOMEM;
766 }
767
768 vfd->fops = &fimc_m2m_fops;
769 vfd->ioctl_ops = &fimc_m2m_ioctl_ops;
770 vfd->v4l2_dev = v4l2_dev;
771 vfd->minor = -1;
772 vfd->release = video_device_release;
773 vfd->lock = &fimc->lock;
774 /* Locking in file operations other than ioctl should be done
775 by the driver, not the V4L2 core.
776 This driver needs auditing so that this flag can be removed. */
777 set_bit(V4L2_FL_LOCK_ALL_FOPS, &vfd->flags);
778
779 snprintf(vfd->name, sizeof(vfd->name), "%s.m2m", dev_name(&pdev->dev));
780 video_set_drvdata(vfd, fimc);
781
782 fimc->m2m.vfd = vfd;
783 fimc->m2m.m2m_dev = v4l2_m2m_init(&m2m_ops);
784 if (IS_ERR(fimc->m2m.m2m_dev)) {
785 v4l2_err(v4l2_dev, "failed to initialize v4l2-m2m device\n");
786 ret = PTR_ERR(fimc->m2m.m2m_dev);
787 goto err_init;
788 }
789
790 ret = media_entity_init(&vfd->entity, 0, NULL, 0);
791 if (!ret)
792 return 0;
793
794 v4l2_m2m_release(fimc->m2m.m2m_dev);
795err_init:
796 video_device_release(fimc->m2m.vfd);
797 return ret;
798}
799
800void fimc_unregister_m2m_device(struct fimc_dev *fimc)
801{
802 if (!fimc)
803 return;
804
805 if (fimc->m2m.m2m_dev)
806 v4l2_m2m_release(fimc->m2m.m2m_dev);
807 if (fimc->m2m.vfd) {
808 media_entity_cleanup(&fimc->m2m.vfd->entity);
809 /* Can also be called if video device wasn't registered */
810 video_unregister_device(fimc->m2m.vfd);
811 }
812}
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-06 03:21:28 -0500