diff options
Diffstat (limited to 'drivers/media/video/pxa_camera.c')
-rw-r--r-- | drivers/media/video/pxa_camera.c | 67 |
1 files changed, 49 insertions, 18 deletions
diff --git a/drivers/media/video/pxa_camera.c b/drivers/media/video/pxa_camera.c index 2cc203cfbe6c..c522616ef38f 100644 --- a/drivers/media/video/pxa_camera.c +++ b/drivers/media/video/pxa_camera.c @@ -1150,8 +1150,43 @@ static int pxa_camera_get_formats(struct soc_camera_device *icd, int idx, return formats; } +static int pxa_camera_set_crop(struct soc_camera_device *icd, + struct v4l2_rect *rect) +{ + struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent); + struct pxa_camera_dev *pcdev = ici->priv; + struct soc_camera_sense sense = { + .master_clock = pcdev->mclk, + .pixel_clock_max = pcdev->ciclk / 4, + }; + int ret; + + /* If PCLK is used to latch data from the sensor, check sense */ + if (pcdev->platform_flags & PXA_CAMERA_PCLK_EN) + icd->sense = &sense; + + ret = icd->ops->set_crop(icd, rect); + + icd->sense = NULL; + + if (ret < 0) { + dev_warn(&ici->dev, "Failed to crop to %ux%u@%u:%u\n", + rect->width, rect->height, rect->left, rect->top); + } else if (sense.flags & SOCAM_SENSE_PCLK_CHANGED) { + if (sense.pixel_clock > sense.pixel_clock_max) { + dev_err(&ici->dev, + "pixel clock %lu set by the camera too high!", + sense.pixel_clock); + return -EIO; + } + recalculate_fifo_timeout(pcdev, sense.pixel_clock); + } + + return ret; +} + static int pxa_camera_set_fmt(struct soc_camera_device *icd, - __u32 pixfmt, struct v4l2_rect *rect) + struct v4l2_format *f) { struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent); struct pxa_camera_dev *pcdev = ici->priv; @@ -1161,35 +1196,30 @@ static int pxa_camera_set_fmt(struct soc_camera_device *icd, .master_clock = pcdev->mclk, .pixel_clock_max = pcdev->ciclk / 4, }; + struct v4l2_pix_format *pix = &f->fmt.pix; + struct v4l2_format cam_f = *f; int ret; - if (pixfmt) { - xlate = soc_camera_xlate_by_fourcc(icd, pixfmt); - if (!xlate) { - dev_warn(&ici->dev, "Format %x not found\n", pixfmt); - return -EINVAL; - } - - cam_fmt = xlate->cam_fmt; + xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat); + if (!xlate) { + dev_warn(&ici->dev, "Format %x not found\n", pix->pixelformat); + return -EINVAL; } + cam_fmt = xlate->cam_fmt; + /* If PCLK is used to latch data from the sensor, check sense */ if (pcdev->platform_flags & PXA_CAMERA_PCLK_EN) icd->sense = &sense; - switch (pixfmt) { - case 0: /* Only geometry change */ - ret = icd->ops->set_fmt(icd, pixfmt, rect); - break; - default: - ret = icd->ops->set_fmt(icd, cam_fmt->fourcc, rect); - } + cam_f.fmt.pix.pixelformat = cam_fmt->fourcc; + ret = icd->ops->set_fmt(icd, &cam_f); icd->sense = NULL; if (ret < 0) { dev_warn(&ici->dev, "Failed to configure for format %x\n", - pixfmt); + pix->pixelformat); } else if (sense.flags & SOCAM_SENSE_PCLK_CHANGED) { if (sense.pixel_clock > sense.pixel_clock_max) { dev_err(&ici->dev, @@ -1200,7 +1230,7 @@ static int pxa_camera_set_fmt(struct soc_camera_device *icd, recalculate_fifo_timeout(pcdev, sense.pixel_clock); } - if (pixfmt && !ret) { + if (!ret) { icd->buswidth = xlate->buswidth; icd->current_fmt = xlate->host_fmt; } @@ -1364,6 +1394,7 @@ static struct soc_camera_host_ops pxa_soc_camera_host_ops = { .remove = pxa_camera_remove_device, .suspend = pxa_camera_suspend, .resume = pxa_camera_resume, + .set_crop = pxa_camera_set_crop, .get_formats = pxa_camera_get_formats, .set_fmt = pxa_camera_set_fmt, .try_fmt = pxa_camera_try_fmt, |