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author | Sylwester Nawrocki <s.nawrocki@samsung.com> | 2013-05-31 16:47:02 (GMT) |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-06-13 01:05:14 (GMT) |
commit | 7536b4240f1bdc71f83cf008160e71c38f7ac9ff (patch) | |
tree | ae55995ac4169a6691c5d4ac9e8fd1b6f4954f85 /drivers/media/platform | |
parent | f525e176f938f31a7335ce2bfec433236e0d8d6a (diff) | |
download | linux-7536b4240f1bdc71f83cf008160e71c38f7ac9ff.tar.xz |
[media] exynos4-is: Refactor vidioc_s_fmt, vidioc_try_fmt handlers
Remove duplicated code in the vidioc_try_fmt and vidioc_s_fmt handlers.
This is a pre-requsite to allow successful fimc.capture video open even
if its corresponding media entities are not linked into a complete
pipeline.
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/platform')
-rw-r--r-- | drivers/media/platform/exynos4-is/fimc-capture.c | 158 |
1 files changed, 75 insertions, 83 deletions
diff --git a/drivers/media/platform/exynos4-is/fimc-capture.c b/drivers/media/platform/exynos4-is/fimc-capture.c index 1578aa4..2b045b6 100644 --- a/drivers/media/platform/exynos4-is/fimc-capture.c +++ b/drivers/media/platform/exynos4-is/fimc-capture.c @@ -503,9 +503,6 @@ static int fimc_capture_open(struct file *file) ret = fimc_pipeline_call(ve, open, &ve->vdev.entity, true); - if (ret == 0) - ret = fimc_capture_set_default_format(fimc); - if (ret == 0 && vc->user_subdev_api && vc->inh_sensor_ctrls) { /* * Recreate controls of the the video node to drop @@ -522,6 +519,9 @@ static int fimc_capture_open(struct file *file) fimc_md_graph_unlock(ve); + if (ret == 0) + ret = fimc_capture_set_default_format(fimc); + if (ret < 0) { clear_bit(ST_CAPT_BUSY, &fimc->state); pm_runtime_put_sync(&fimc->pdev->dev); @@ -916,55 +916,83 @@ static int fimc_cap_g_fmt_mplane(struct file *file, void *fh, return 0; } -static int fimc_cap_try_fmt_mplane(struct file *file, void *fh, - struct v4l2_format *f) +/* + * Try or set format on the fimc.X.capture video node and additionally + * on the whole pipeline if @try is false. + * Locking: the caller must _not_ hold the graph mutex. + */ +static int __video_try_or_set_format(struct fimc_dev *fimc, + struct v4l2_format *f, bool try, + struct fimc_fmt **inp_fmt, + struct fimc_fmt **out_fmt) { struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp; - struct fimc_dev *fimc = video_drvdata(file); - struct fimc_ctx *ctx = fimc->vid_cap.ctx; - struct exynos_video_entity *ve = &fimc->vid_cap.ve; - struct v4l2_mbus_framefmt mf; - struct v4l2_subdev *sensor; - struct fimc_fmt *ffmt = NULL; + struct fimc_vid_cap *vc = &fimc->vid_cap; + struct exynos_video_entity *ve = &vc->ve; + struct fimc_ctx *ctx = vc->ctx; + unsigned int width = 0, height = 0; int ret = 0; + /* Pre-configure format at the camera input interface, for JPEG only */ if (fimc_jpeg_fourcc(pix->pixelformat)) { fimc_capture_try_format(ctx, &pix->width, &pix->height, NULL, &pix->pixelformat, FIMC_SD_PAD_SINK_CAM); - ctx->s_frame.f_width = pix->width; - ctx->s_frame.f_height = pix->height; + if (try) { + width = pix->width; + height = pix->height; + } else { + ctx->s_frame.f_width = pix->width; + ctx->s_frame.f_height = pix->height; + } } - ffmt = fimc_capture_try_format(ctx, &pix->width, &pix->height, - NULL, &pix->pixelformat, - FIMC_SD_PAD_SOURCE); - if (!ffmt) + + /* Try the format at the scaler and the DMA output */ + *out_fmt = fimc_capture_try_format(ctx, &pix->width, &pix->height, + NULL, &pix->pixelformat, + FIMC_SD_PAD_SOURCE); + if (*out_fmt == NULL) return -EINVAL; - if (!fimc->vid_cap.user_subdev_api) { - mf.width = pix->width; - mf.height = pix->height; - mf.code = ffmt->mbus_code; + /* Restore image width/height for JPEG (no resizing supported). */ + if (try && fimc_jpeg_fourcc(pix->pixelformat)) { + pix->width = width; + pix->height = height; + } + + /* Try to match format at the host and the sensor */ + if (!vc->user_subdev_api) { + struct v4l2_mbus_framefmt mbus_fmt; + struct v4l2_mbus_framefmt *mf; + + mf = try ? &mbus_fmt : &fimc->vid_cap.ci_fmt; + + mf->code = (*out_fmt)->mbus_code; + mf->width = pix->width; + mf->height = pix->height; fimc_md_graph_lock(ve); - fimc_pipeline_try_format(ctx, &mf, &ffmt, false); + ret = fimc_pipeline_try_format(ctx, mf, inp_fmt, try); fimc_md_graph_unlock(ve); - pix->width = mf.width; - pix->height = mf.height; - if (ffmt) - pix->pixelformat = ffmt->fourcc; + if (ret < 0) + return ret; + + pix->width = mf->width; + pix->height = mf->height; } - fimc_adjust_mplane_format(ffmt, pix->width, pix->height, pix); + fimc_adjust_mplane_format(*out_fmt, pix->width, pix->height, pix); + + if ((*out_fmt)->flags & FMT_FLAGS_COMPRESSED) { + struct v4l2_subdev *sensor; - if (ffmt->flags & FMT_FLAGS_COMPRESSED) { fimc_md_graph_lock(ve); sensor = __fimc_md_get_subdev(ve->pipe, IDX_SENSOR); if (sensor) fimc_get_sensor_frame_desc(sensor, pix->plane_fmt, - ffmt->memplanes, true); + (*out_fmt)->memplanes, try); else ret = -EPIPE; @@ -974,6 +1002,15 @@ static int fimc_cap_try_fmt_mplane(struct file *file, void *fh, return ret; } +static int fimc_cap_try_fmt_mplane(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct fimc_dev *fimc = video_drvdata(file); + struct fimc_fmt *out_fmt = NULL, *inp_fmt = NULL; + + return __video_try_or_set_format(fimc, f, true, &inp_fmt, &out_fmt); +} + static void fimc_capture_mark_jpeg_xfer(struct fimc_ctx *ctx, enum fimc_color_fmt color) { @@ -991,58 +1028,23 @@ static void fimc_capture_mark_jpeg_xfer(struct fimc_ctx *ctx, static int __fimc_capture_set_format(struct fimc_dev *fimc, struct v4l2_format *f) { - struct fimc_ctx *ctx = fimc->vid_cap.ctx; + struct fimc_vid_cap *vc = &fimc->vid_cap; + struct fimc_ctx *ctx = vc->ctx; struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp; - struct v4l2_mbus_framefmt *mf = &fimc->vid_cap.ci_fmt; - struct fimc_pipeline *p = to_fimc_pipeline(fimc->vid_cap.ve.pipe); struct fimc_frame *ff = &ctx->d_frame; - struct fimc_fmt *s_fmt = NULL; + struct fimc_fmt *inp_fmt = NULL; int ret, i; if (vb2_is_busy(&fimc->vid_cap.vbq)) return -EBUSY; - /* Pre-configure format at camera interface input, for JPEG only */ - if (fimc_jpeg_fourcc(pix->pixelformat)) { - fimc_capture_try_format(ctx, &pix->width, &pix->height, - NULL, &pix->pixelformat, - FIMC_SD_PAD_SINK_CAM); - ctx->s_frame.f_width = pix->width; - ctx->s_frame.f_height = pix->height; - } - /* Try the format at the scaler and the DMA output */ - ff->fmt = fimc_capture_try_format(ctx, &pix->width, &pix->height, - NULL, &pix->pixelformat, - FIMC_SD_PAD_SOURCE); - if (!ff->fmt) - return -EINVAL; + ret = __video_try_or_set_format(fimc, f, false, &inp_fmt, &ff->fmt); + if (ret < 0) + return ret; /* Update RGB Alpha control state and value range */ fimc_alpha_ctrl_update(ctx); - /* Try to match format at the host and the sensor */ - if (!fimc->vid_cap.user_subdev_api) { - mf->code = ff->fmt->mbus_code; - mf->width = pix->width; - mf->height = pix->height; - ret = fimc_pipeline_try_format(ctx, mf, &s_fmt, true); - if (ret) - return ret; - - pix->width = mf->width; - pix->height = mf->height; - } - - fimc_adjust_mplane_format(ff->fmt, pix->width, pix->height, pix); - - if (ff->fmt->flags & FMT_FLAGS_COMPRESSED) { - ret = fimc_get_sensor_frame_desc(p->subdevs[IDX_SENSOR], - pix->plane_fmt, ff->fmt->memplanes, - true); - if (ret < 0) - return ret; - } - for (i = 0; i < ff->fmt->memplanes; i++) { ff->bytesperline[i] = pix->plane_fmt[i].bytesperline; ff->payload[i] = pix->plane_fmt[i].sizeimage; @@ -1056,8 +1058,8 @@ static int __fimc_capture_set_format(struct fimc_dev *fimc, fimc_capture_mark_jpeg_xfer(ctx, ff->fmt->color); /* Reset cropping and set format at the camera interface input */ - if (!fimc->vid_cap.user_subdev_api) { - ctx->s_frame.fmt = s_fmt; + if (!vc->user_subdev_api) { + ctx->s_frame.fmt = inp_fmt; set_frame_bounds(&ctx->s_frame, pix->width, pix->height); set_frame_crop(&ctx->s_frame, 0, 0, pix->width, pix->height); } @@ -1069,18 +1071,8 @@ static int fimc_cap_s_fmt_mplane(struct file *file, void *priv, struct v4l2_format *f) { struct fimc_dev *fimc = video_drvdata(file); - int ret; - fimc_md_graph_lock(&fimc->vid_cap.ve); - /* - * The graph is walked within __fimc_capture_set_format() to set - * the format at subdevs thus the graph mutex needs to be held at - * this point. - */ - ret = __fimc_capture_set_format(fimc, f); - - fimc_md_graph_unlock(&fimc->vid_cap.ve); - return ret; + return __fimc_capture_set_format(fimc, f); } static int fimc_cap_enum_input(struct file *file, void *priv, |