[media] V4L: sh_mobile_ceu_camera: maximum image size depends on the hardware version
Newer CEU versions, e.g., the one, used on sh7372, support image sizes larger than 2560x1920. Retrieve maximum sizes from platform properties. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -112,6 +112,10 @@ struct sh_mobile_ceu_dev {
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u32 cflcr;
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/* static max sizes either from platform data or default */
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int max_width;
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int max_height;
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enum v4l2_field field;
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int sequence;
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@ -1081,7 +1085,15 @@ static int sh_mobile_ceu_get_formats(struct soc_camera_device *icd, unsigned int
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if (ret < 0)
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return ret;
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while ((mf.width > 2560 || mf.height > 1920) && shift < 4) {
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/*
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* All currently existing CEU implementations support 2560x1920
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* or larger frames. If the sensor is proposing too big a frame,
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* don't bother with possibly supportred by the CEU larger
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* sizes, just try VGA multiples. If needed, this can be
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* adjusted in the future.
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*/
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while ((mf.width > pcdev->max_width ||
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mf.height > pcdev->max_height) && shift < 4) {
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/* Try 2560x1920, 1280x960, 640x480, 320x240 */
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mf.width = 2560 >> shift;
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mf.height = 1920 >> shift;
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@ -1377,6 +1389,8 @@ static int client_s_crop(struct soc_camera_device *icd, struct v4l2_crop *crop,
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static int client_s_fmt(struct soc_camera_device *icd,
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struct v4l2_mbus_framefmt *mf, bool ceu_can_scale)
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{
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struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
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struct sh_mobile_ceu_dev *pcdev = ici->priv;
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struct sh_mobile_ceu_cam *cam = icd->host_priv;
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struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
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struct device *dev = icd->parent;
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@ -1410,8 +1424,8 @@ static int client_s_fmt(struct soc_camera_device *icd,
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if (ret < 0)
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return ret;
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max_width = min(cap.bounds.width, 2560);
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max_height = min(cap.bounds.height, 1920);
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max_width = min(cap.bounds.width, pcdev->max_width);
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max_height = min(cap.bounds.height, pcdev->max_height);
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/* Camera set a format, but geometry is not precise, try to improve */
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tmp_w = mf->width;
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@ -1551,7 +1565,7 @@ static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd,
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if (ret < 0)
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return ret;
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if (mf.width > 2560 || mf.height > 1920)
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if (mf.width > pcdev->max_width || mf.height > pcdev->max_height)
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return -EINVAL;
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/* 4. Calculate camera scales */
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@ -1834,6 +1848,8 @@ static int sh_mobile_ceu_set_fmt(struct soc_camera_device *icd,
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static int sh_mobile_ceu_try_fmt(struct soc_camera_device *icd,
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struct v4l2_format *f)
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{
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struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
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struct sh_mobile_ceu_dev *pcdev = ici->priv;
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const struct soc_camera_format_xlate *xlate;
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struct v4l2_pix_format *pix = &f->fmt.pix;
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struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
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@ -1854,8 +1870,8 @@ static int sh_mobile_ceu_try_fmt(struct soc_camera_device *icd,
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/* FIXME: calculate using depth and bus width */
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/* CFSZR requires height and width to be 4-pixel aligned */
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v4l_bound_align_image(&pix->width, 2, 2560, 2,
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&pix->height, 4, 1920, 2, 0);
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v4l_bound_align_image(&pix->width, 2, pcdev->max_width, 2,
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&pix->height, 4, pcdev->max_height, 2, 0);
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width = pix->width;
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height = pix->height;
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@ -1890,8 +1906,8 @@ static int sh_mobile_ceu_try_fmt(struct soc_camera_device *icd,
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* requested a bigger rectangle, it will not return a
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* smaller one.
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*/
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mf.width = 2560;
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mf.height = 1920;
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mf.width = pcdev->max_width;
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mf.height = pcdev->max_height;
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ret = v4l2_device_call_until_err(sd->v4l2_dev,
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soc_camera_grp_id(icd), video,
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try_mbus_fmt, &mf);
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@ -2082,6 +2098,9 @@ static int __devinit sh_mobile_ceu_probe(struct platform_device *pdev)
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goto exit_kfree;
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}
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pcdev->max_width = pcdev->pdata->max_width ? : 2560;
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pcdev->max_height = pcdev->pdata->max_height ? : 1920;
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base = ioremap_nocache(res->start, resource_size(res));
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if (!base) {
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err = -ENXIO;
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@ -18,6 +18,8 @@ struct sh_mobile_ceu_companion {
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struct sh_mobile_ceu_info {
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unsigned long flags;
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int max_width;
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int max_height;
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struct sh_mobile_ceu_companion *csi2;
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};
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