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path: root/drivers/media/video/s5p-fimc/fimc-capture.c
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Diffstat (limited to 'drivers/media/video/s5p-fimc/fimc-capture.c')
-rw-r--r--drivers/media/video/s5p-fimc/fimc-capture.c112
1 files changed, 69 insertions, 43 deletions
diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c
index 725812aa0c30..8e413dd3c0b0 100644
--- a/drivers/media/video/s5p-fimc/fimc-capture.c
+++ b/drivers/media/video/s5p-fimc/fimc-capture.c
@@ -480,48 +480,59 @@ static int fimc_capture_set_default_format(struct fimc_dev *fimc);
static int fimc_capture_open(struct file *file)
{
struct fimc_dev *fimc = video_drvdata(file);
- int ret;
+ int ret = -EBUSY;
dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
+ if (mutex_lock_interruptible(&fimc->lock))
+ return -ERESTARTSYS;
+
if (fimc_m2m_active(fimc))
- return -EBUSY;
+ goto unlock;
set_bit(ST_CAPT_BUSY, &fimc->state);
ret = pm_runtime_get_sync(&fimc->pdev->dev);
if (ret < 0)
- return ret;
+ goto unlock;
ret = v4l2_fh_open(file);
- if (ret)
- return ret;
-
- if (++fimc->vid_cap.refcnt != 1)
- return 0;
+ if (ret) {
+ pm_runtime_put(&fimc->pdev->dev);
+ goto unlock;
+ }
- ret = fimc_pipeline_initialize(&fimc->pipeline,
+ if (++fimc->vid_cap.refcnt == 1) {
+ ret = fimc_pipeline_initialize(&fimc->pipeline,
&fimc->vid_cap.vfd->entity, true);
- if (ret < 0) {
- clear_bit(ST_CAPT_BUSY, &fimc->state);
- pm_runtime_put_sync(&fimc->pdev->dev);
- fimc->vid_cap.refcnt--;
- v4l2_fh_release(file);
- return ret;
- }
- ret = fimc_capture_ctrls_create(fimc);
- if (!ret && !fimc->vid_cap.user_subdev_api)
- ret = fimc_capture_set_default_format(fimc);
+ if (!ret && !fimc->vid_cap.user_subdev_api)
+ ret = fimc_capture_set_default_format(fimc);
+ if (!ret)
+ ret = fimc_capture_ctrls_create(fimc);
+
+ if (ret < 0) {
+ clear_bit(ST_CAPT_BUSY, &fimc->state);
+ pm_runtime_put_sync(&fimc->pdev->dev);
+ fimc->vid_cap.refcnt--;
+ v4l2_fh_release(file);
+ }
+ }
+unlock:
+ mutex_unlock(&fimc->lock);
return ret;
}
static int fimc_capture_close(struct file *file)
{
struct fimc_dev *fimc = video_drvdata(file);
+ int ret;
dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
+ if (mutex_lock_interruptible(&fimc->lock))
+ return -ERESTARTSYS;
+
if (--fimc->vid_cap.refcnt == 0) {
clear_bit(ST_CAPT_BUSY, &fimc->state);
fimc_stop_capture(fimc, false);
@@ -535,22 +546,40 @@ static int fimc_capture_close(struct file *file)
vb2_queue_release(&fimc->vid_cap.vbq);
fimc_ctrls_delete(fimc->vid_cap.ctx);
}
- return v4l2_fh_release(file);
+
+ ret = v4l2_fh_release(file);
+
+ mutex_unlock(&fimc->lock);
+ return ret;
}
static unsigned int fimc_capture_poll(struct file *file,
struct poll_table_struct *wait)
{
struct fimc_dev *fimc = video_drvdata(file);
+ int ret;
- return vb2_poll(&fimc->vid_cap.vbq, file, wait);
+ if (mutex_lock_interruptible(&fimc->lock))
+ return POLL_ERR;
+
+ ret = vb2_poll(&fimc->vid_cap.vbq, file, wait);
+ mutex_unlock(&fimc->lock);
+
+ return ret;
}
static int fimc_capture_mmap(struct file *file, struct vm_area_struct *vma)
{
struct fimc_dev *fimc = video_drvdata(file);
+ int ret;
- return vb2_mmap(&fimc->vid_cap.vbq, vma);
+ if (mutex_lock_interruptible(&fimc->lock))
+ return -ERESTARTSYS;
+
+ ret = vb2_mmap(&fimc->vid_cap.vbq, vma);
+ mutex_unlock(&fimc->lock);
+
+ return ret;
}
static const struct v4l2_file_operations fimc_capture_fops = {
@@ -658,7 +687,7 @@ static void fimc_capture_try_selection(struct fimc_ctx *ctx,
r->left = r->top = 0;
return;
}
- if (target == V4L2_SEL_TGT_COMPOSE_ACTIVE) {
+ if (target == V4L2_SEL_TGT_COMPOSE) {
if (ctx->rotation != 90 && ctx->rotation != 270)
align_h = 1;
max_sc_h = min(SCALER_MAX_HRATIO, 1 << (ffs(sink->width) - 3));
@@ -685,7 +714,7 @@ static void fimc_capture_try_selection(struct fimc_ctx *ctx,
rotate ? sink->f_height : sink->f_width);
max_h = min_t(u32, FIMC_CAMIF_MAX_HEIGHT, sink->f_height);
- if (target == V4L2_SEL_TGT_COMPOSE_ACTIVE) {
+ if (target == V4L2_SEL_TGT_COMPOSE) {
min_w = min_t(u32, max_w, sink->f_width / max_sc_h);
min_h = min_t(u32, max_h, sink->f_height / max_sc_v);
if (rotate) {
@@ -1146,9 +1175,9 @@ static int fimc_cap_g_selection(struct file *file, void *fh,
s->r.height = f->o_height;
return 0;
- case V4L2_SEL_TGT_COMPOSE_ACTIVE:
+ case V4L2_SEL_TGT_COMPOSE:
f = &ctx->d_frame;
- case V4L2_SEL_TGT_CROP_ACTIVE:
+ case V4L2_SEL_TGT_CROP:
s->r.left = f->offs_h;
s->r.top = f->offs_v;
s->r.width = f->width;
@@ -1160,7 +1189,7 @@ static int fimc_cap_g_selection(struct file *file, void *fh,
}
/* Return 1 if rectangle a is enclosed in rectangle b, or 0 otherwise. */
-int enclosed_rectangle(struct v4l2_rect *a, struct v4l2_rect *b)
+static int enclosed_rectangle(struct v4l2_rect *a, struct v4l2_rect *b)
{
if (a->left < b->left || a->top < b->top)
return 0;
@@ -1184,9 +1213,9 @@ static int fimc_cap_s_selection(struct file *file, void *fh,
if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
return -EINVAL;
- if (s->target == V4L2_SEL_TGT_COMPOSE_ACTIVE)
+ if (s->target == V4L2_SEL_TGT_COMPOSE)
f = &ctx->d_frame;
- else if (s->target == V4L2_SEL_TGT_CROP_ACTIVE)
+ else if (s->target == V4L2_SEL_TGT_CROP)
f = &ctx->s_frame;
else
return -EINVAL;
@@ -1428,9 +1457,9 @@ static int fimc_subdev_get_selection(struct v4l2_subdev *sd,
mutex_lock(&fimc->lock);
switch (sel->target) {
- case V4L2_SUBDEV_SEL_TGT_COMPOSE_BOUNDS:
+ case V4L2_SEL_TGT_COMPOSE_BOUNDS:
f = &ctx->d_frame;
- case V4L2_SUBDEV_SEL_TGT_CROP_BOUNDS:
+ case V4L2_SEL_TGT_CROP_BOUNDS:
r->width = f->o_width;
r->height = f->o_height;
r->left = 0;
@@ -1438,10 +1467,10 @@ static int fimc_subdev_get_selection(struct v4l2_subdev *sd,
mutex_unlock(&fimc->lock);
return 0;
- case V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL:
+ case V4L2_SEL_TGT_CROP:
try_sel = v4l2_subdev_get_try_crop(fh, sel->pad);
break;
- case V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL:
+ case V4L2_SEL_TGT_COMPOSE:
try_sel = v4l2_subdev_get_try_compose(fh, sel->pad);
f = &ctx->d_frame;
break;
@@ -1482,12 +1511,12 @@ static int fimc_subdev_set_selection(struct v4l2_subdev *sd,
return -EINVAL;
mutex_lock(&fimc->lock);
- fimc_capture_try_selection(ctx, r, V4L2_SEL_TGT_CROP_ACTIVE);
+ fimc_capture_try_selection(ctx, r, V4L2_SEL_TGT_CROP);
switch (sel->target) {
- case V4L2_SUBDEV_SEL_TGT_COMPOSE_BOUNDS:
+ case V4L2_SEL_TGT_COMPOSE_BOUNDS:
f = &ctx->d_frame;
- case V4L2_SUBDEV_SEL_TGT_CROP_BOUNDS:
+ case V4L2_SEL_TGT_CROP_BOUNDS:
r->width = f->o_width;
r->height = f->o_height;
r->left = 0;
@@ -1495,10 +1524,10 @@ static int fimc_subdev_set_selection(struct v4l2_subdev *sd,
mutex_unlock(&fimc->lock);
return 0;
- case V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL:
+ case V4L2_SEL_TGT_CROP:
try_sel = v4l2_subdev_get_try_crop(fh, sel->pad);
break;
- case V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL:
+ case V4L2_SEL_TGT_COMPOSE:
try_sel = v4l2_subdev_get_try_compose(fh, sel->pad);
f = &ctx->d_frame;
break;
@@ -1514,7 +1543,7 @@ static int fimc_subdev_set_selection(struct v4l2_subdev *sd,
set_frame_crop(f, r->left, r->top, r->width, r->height);
set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
spin_unlock_irqrestore(&fimc->slock, flags);
- if (sel->target == V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL)
+ if (sel->target == V4L2_SEL_TGT_COMPOSE)
ctx->state |= FIMC_COMPOSE;
}
@@ -1589,10 +1618,7 @@ static int fimc_register_capture_device(struct fimc_dev *fimc,
vfd->minor = -1;
vfd->release = video_device_release;
vfd->lock = &fimc->lock;
- /* Locking in file operations other than ioctl should be done
- by the driver, not the V4L2 core.
- This driver needs auditing so that this flag can be removed. */
- set_bit(V4L2_FL_LOCK_ALL_FOPS, &vfd->flags);
+
video_set_drvdata(vfd, fimc);
vid_cap = &fimc->vid_cap;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.