diff options
Diffstat (limited to 'drivers/media/video/mx1_camera.c')
| -rw-r--r-- | drivers/media/video/mx1_camera.c | 90 |
1 files changed, 73 insertions, 17 deletions
diff --git a/drivers/media/video/mx1_camera.c b/drivers/media/video/mx1_camera.c index 4c1a439373c5..2ba14fb5b031 100644 --- a/drivers/media/video/mx1_camera.c +++ b/drivers/media/video/mx1_camera.c @@ -37,6 +37,7 @@ #include <media/v4l2-common.h> #include <media/v4l2-dev.h> #include <media/videobuf-dma-contig.h> +#include <media/soc_mediabus.h> #include <asm/dma.h> #include <asm/fiq.h> @@ -94,9 +95,9 @@ /* buffer for one video frame */ struct mx1_buffer { /* common v4l buffer stuff -- must be first */ - struct videobuf_buffer vb; - const struct soc_camera_data_format *fmt; - int inwork; + struct videobuf_buffer vb; + enum v4l2_mbus_pixelcode code; + int inwork; }; /* @@ -128,9 +129,13 @@ static int mx1_videobuf_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size) { struct soc_camera_device *icd = vq->priv_data; + int bytes_per_line = soc_mbus_bytes_per_line(icd->user_width, + icd->current_fmt->host_fmt); - *size = icd->user_width * icd->user_height * - ((icd->current_fmt->depth + 7) >> 3); + if (bytes_per_line < 0) + return bytes_per_line; + + *size = bytes_per_line * icd->user_height; if (!*count) *count = 32; @@ -169,6 +174,11 @@ static int mx1_videobuf_prepare(struct videobuf_queue *vq, struct soc_camera_device *icd = vq->priv_data; struct mx1_buffer *buf = container_of(vb, struct mx1_buffer, vb); int ret; + int bytes_per_line = soc_mbus_bytes_per_line(icd->user_width, + icd->current_fmt->host_fmt); + + if (bytes_per_line < 0) + return bytes_per_line; dev_dbg(icd->dev.parent, "%s (vb=0x%p) 0x%08lx %d\n", __func__, vb, vb->baddr, vb->bsize); @@ -184,18 +194,18 @@ static int mx1_videobuf_prepare(struct videobuf_queue *vq, */ buf->inwork = 1; - if (buf->fmt != icd->current_fmt || + if (buf->code != icd->current_fmt->code || vb->width != icd->user_width || vb->height != icd->user_height || vb->field != field) { - buf->fmt = icd->current_fmt; + buf->code = icd->current_fmt->code; vb->width = icd->user_width; vb->height = icd->user_height; vb->field = field; vb->state = VIDEOBUF_NEEDS_INIT; } - vb->size = vb->width * vb->height * ((buf->fmt->depth + 7) >> 3); + vb->size = bytes_per_line * vb->height; if (0 != vb->baddr && vb->bsize < vb->size) { ret = -EINVAL; goto out; @@ -497,12 +507,10 @@ static int mx1_camera_set_bus_param(struct soc_camera_device *icd, __u32 pixfmt) /* MX1 supports only 8bit buswidth */ common_flags = soc_camera_bus_param_compatible(camera_flags, - CSI_BUS_FLAGS); + CSI_BUS_FLAGS); if (!common_flags) return -EINVAL; - icd->buswidth = 8; - /* Make choises, based on platform choice */ if ((common_flags & SOCAM_VSYNC_ACTIVE_HIGH) && (common_flags & SOCAM_VSYNC_ACTIVE_LOW)) { @@ -555,7 +563,8 @@ static int mx1_camera_set_fmt(struct soc_camera_device *icd, struct v4l2_subdev *sd = soc_camera_to_subdev(icd); const struct soc_camera_format_xlate *xlate; struct v4l2_pix_format *pix = &f->fmt.pix; - int ret; + struct v4l2_mbus_framefmt mf; + int ret, buswidth; xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat); if (!xlate) { @@ -564,12 +573,33 @@ static int mx1_camera_set_fmt(struct soc_camera_device *icd, return -EINVAL; } - ret = v4l2_subdev_call(sd, video, s_fmt, f); - if (!ret) { - icd->buswidth = xlate->buswidth; - icd->current_fmt = xlate->host_fmt; + buswidth = xlate->host_fmt->bits_per_sample; + if (buswidth > 8) { + dev_warn(icd->dev.parent, + "bits-per-sample %d for format %x unsupported\n", + buswidth, pix->pixelformat); + return -EINVAL; } + mf.width = pix->width; + mf.height = pix->height; + mf.field = pix->field; + mf.colorspace = pix->colorspace; + mf.code = xlate->code; + + ret = v4l2_subdev_call(sd, video, s_mbus_fmt, &mf); + if (ret < 0) + return ret; + + if (mf.code != xlate->code) + return -EINVAL; + + pix->width = mf.width; + pix->height = mf.height; + pix->field = mf.field; + pix->colorspace = mf.colorspace; + icd->current_fmt = xlate; + return ret; } @@ -577,10 +607,36 @@ static int mx1_camera_try_fmt(struct soc_camera_device *icd, struct v4l2_format *f) { struct v4l2_subdev *sd = soc_camera_to_subdev(icd); + const struct soc_camera_format_xlate *xlate; + struct v4l2_pix_format *pix = &f->fmt.pix; + struct v4l2_mbus_framefmt mf; + int ret; /* TODO: limit to mx1 hardware capabilities */ + xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat); + if (!xlate) { + dev_warn(icd->dev.parent, "Format %x not found\n", + pix->pixelformat); + return -EINVAL; + } + + mf.width = pix->width; + mf.height = pix->height; + mf.field = pix->field; + mf.colorspace = pix->colorspace; + mf.code = xlate->code; + /* limit to sensor capabilities */ - return v4l2_subdev_call(sd, video, try_fmt, f); + ret = v4l2_subdev_call(sd, video, try_mbus_fmt, &mf); + if (ret < 0) + return ret; + + pix->width = mf.width; + pix->height = mf.height; + pix->field = mf.field; + pix->colorspace = mf.colorspace; + + return 0; } static int mx1_camera_reqbufs(struct soc_camera_file *icf, |