> From: linux-media-ow...@vger.kernel.org [mailto:linux-media-
> ow...@vger.kernel.org] On Behalf Of Sylwester Nawrocki
> Sent: Saturday, October 12, 2013 2:32 PM
> Subject: [PATCH RFC v2 10/10] s5p-g2d: Use mem-to-mem ioctl helpers
>
> Simplify the driver by using the m2m ioctl and vb2 helpers.
>
> Signed-off-by: Sylwester Nawrocki <s.nawro...@samsung.com>
> Signed-off-by: Kyungmin Park <kyungmin.p...@samsung.com>
Acked-by: Kamil Debski <k.deb...@samsung.com>
> ---
> Changes since v1:
> - use m2m context pointer from struct v4l2_fh.
> ---
> drivers/media/platform/s5p-g2d/g2d.c | 124 ++++++--------------------
> --------
> drivers/media/platform/s5p-g2d/g2d.h | 1 -
> 2 files changed, 21 insertions(+), 104 deletions(-)
>
> diff --git a/drivers/media/platform/s5p-g2d/g2d.c
> b/drivers/media/platform/s5p-g2d/g2d.c
> index fd6289d..9c12008 100644
> --- a/drivers/media/platform/s5p-g2d/g2d.c
> +++ b/drivers/media/platform/s5p-g2d/g2d.c
> @@ -136,10 +136,9 @@ static int g2d_buf_prepare(struct vb2_buffer *vb)
> static void g2d_buf_queue(struct vb2_buffer *vb) {
> struct g2d_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
> - v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
> + v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vb);
> }
>
> -
> static struct vb2_ops g2d_qops = {
> .queue_setup = g2d_queue_setup,
> .buf_prepare = g2d_buf_prepare,
> @@ -159,6 +158,7 @@ static int queue_init(void *priv, struct vb2_queue
> *src_vq,
> src_vq->mem_ops = &vb2_dma_contig_memops;
> src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
> src_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;
> + src_vq->lock = &ctx->dev->mutex;
>
> ret = vb2_queue_init(src_vq);
> if (ret)
> @@ -171,6 +171,7 @@ static int queue_init(void *priv, struct vb2_queue
> *src_vq,
> dst_vq->mem_ops = &vb2_dma_contig_memops;
> dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
> dst_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;
> + dst_vq->lock = &ctx->dev->mutex;
>
> return vb2_queue_init(dst_vq);
> }
> @@ -253,9 +254,9 @@ static int g2d_open(struct file *file)
> kfree(ctx);
> return -ERESTARTSYS;
> }
> - ctx->m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &queue_init);
> - if (IS_ERR(ctx->m2m_ctx)) {
> - ret = PTR_ERR(ctx->m2m_ctx);
> + ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx,
> &queue_init);
> + if (IS_ERR(ctx->fh.m2m_ctx)) {
> + ret = PTR_ERR(ctx->fh.m2m_ctx);
> mutex_unlock(&dev->mutex);
> kfree(ctx);
> return ret;
> @@ -324,7 +325,7 @@ static int vidioc_g_fmt(struct file *file, void
> *prv, struct v4l2_format *f)
> struct vb2_queue *vq;
> struct g2d_frame *frm;
>
> - vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
> + vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
> if (!vq)
> return -EINVAL;
> frm = get_frame(ctx, f->type);
> @@ -384,7 +385,7 @@ static int vidioc_s_fmt(struct file *file, void
> *prv, struct v4l2_format *f)
> ret = vidioc_try_fmt(file, prv, f);
> if (ret)
> return ret;
> - vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
> + vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
> if (vb2_is_busy(vq)) {
> v4l2_err(&dev->v4l2_dev, "queue (%d) bust\n", f->type);
> return -EBUSY;
> @@ -410,72 +411,6 @@ static int vidioc_s_fmt(struct file *file, void
> *prv, struct v4l2_format *f)
> return 0;
> }
>
> -static unsigned int g2d_poll(struct file *file, struct
> poll_table_struct *wait) -{
> - struct g2d_ctx *ctx = fh2ctx(file->private_data);
> - struct g2d_dev *dev = ctx->dev;
> - unsigned int res;
> -
> - mutex_lock(&dev->mutex);
> - res = v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
> - mutex_unlock(&dev->mutex);
> - return res;
> -}
> -
> -static int g2d_mmap(struct file *file, struct vm_area_struct *vma) -{
> - struct g2d_ctx *ctx = fh2ctx(file->private_data);
> - struct g2d_dev *dev = ctx->dev;
> - int ret;
> -
> - if (mutex_lock_interruptible(&dev->mutex))
> - return -ERESTARTSYS;
> - ret = v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
> - mutex_unlock(&dev->mutex);
> - return ret;
> -}
> -
> -static int vidioc_reqbufs(struct file *file, void *priv,
> - struct v4l2_requestbuffers *reqbufs)
> -{
> - struct g2d_ctx *ctx = priv;
> - return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
> -}
> -
> -static int vidioc_querybuf(struct file *file, void *priv,
> - struct v4l2_buffer *buf)
> -{
> - struct g2d_ctx *ctx = priv;
> - return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
> -}
> -
> -static int vidioc_qbuf(struct file *file, void *priv, struct
> v4l2_buffer *buf) -{
> - struct g2d_ctx *ctx = priv;
> - return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
> -}
> -
> -static int vidioc_dqbuf(struct file *file, void *priv, struct
> v4l2_buffer *buf) -{
> - struct g2d_ctx *ctx = priv;
> - return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
> -}
> -
> -
> -static int vidioc_streamon(struct file *file, void *priv,
> - enum v4l2_buf_type type)
> -{
> - struct g2d_ctx *ctx = priv;
> - return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
> -}
> -
> -static int vidioc_streamoff(struct file *file, void *priv,
> - enum v4l2_buf_type type)
> -{
> - struct g2d_ctx *ctx = priv;
> - return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
> -}
> -
> static int vidioc_cropcap(struct file *file, void *priv,
> struct v4l2_cropcap *cr)
> {
> @@ -551,20 +486,6 @@ static int vidioc_s_crop(struct file *file, void
> *prv, const struct v4l2_crop *c
> return 0;
> }
>
> -static void g2d_lock(void *prv)
> -{
> - struct g2d_ctx *ctx = prv;
> - struct g2d_dev *dev = ctx->dev;
> - mutex_lock(&dev->mutex);
> -}
> -
> -static void g2d_unlock(void *prv)
> -{
> - struct g2d_ctx *ctx = prv;
> - struct g2d_dev *dev = ctx->dev;
> - mutex_unlock(&dev->mutex);
> -}
> -
> static void job_abort(void *prv)
> {
> struct g2d_ctx *ctx = prv;
> @@ -589,8 +510,8 @@ static void device_run(void *prv)
>
> dev->curr = ctx;
>
> - src = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
> - dst = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
> + src = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
> + dst = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
>
> clk_enable(dev->gate);
> g2d_reset(dev);
> @@ -631,8 +552,8 @@ static irqreturn_t g2d_isr(int irq, void *prv)
>
> BUG_ON(ctx == NULL);
>
> - src = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
> - dst = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
> + src = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
> + dst = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
>
> BUG_ON(src == NULL);
> BUG_ON(dst == NULL);
> @@ -642,7 +563,7 @@ static irqreturn_t g2d_isr(int irq, void *prv)
>
> v4l2_m2m_buf_done(src, VB2_BUF_STATE_DONE);
> v4l2_m2m_buf_done(dst, VB2_BUF_STATE_DONE);
> - v4l2_m2m_job_finish(dev->m2m_dev, ctx->m2m_ctx);
> + v4l2_m2m_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx);
>
> dev->curr = NULL;
> wake_up(&dev->irq_queue);
> @@ -653,9 +574,9 @@ static const struct v4l2_file_operations g2d_fops =
> {
> .owner = THIS_MODULE,
> .open = g2d_open,
> .release = g2d_release,
> - .poll = g2d_poll,
> + .poll = v4l2_m2m_fop_poll,
> .unlocked_ioctl = video_ioctl2,
> - .mmap = g2d_mmap,
> + .mmap = v4l2_m2m_fop_mmap,
> };
>
> static const struct v4l2_ioctl_ops g2d_ioctl_ops = { @@ -671,14
> +592,13 @@ static const struct v4l2_ioctl_ops g2d_ioctl_ops = {
> .vidioc_try_fmt_vid_out = vidioc_try_fmt,
> .vidioc_s_fmt_vid_out = vidioc_s_fmt,
>
> - .vidioc_reqbufs = vidioc_reqbufs,
> - .vidioc_querybuf = vidioc_querybuf,
> -
> - .vidioc_qbuf = vidioc_qbuf,
> - .vidioc_dqbuf = vidioc_dqbuf,
> + .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
> + .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
> + .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
> + .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
>
> - .vidioc_streamon = vidioc_streamon,
> - .vidioc_streamoff = vidioc_streamoff,
> + .vidioc_streamon = v4l2_m2m_ioctl_streamon,
> + .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
>
> .vidioc_g_crop = vidioc_g_crop,
> .vidioc_s_crop = vidioc_s_crop,
> @@ -697,8 +617,6 @@ static struct video_device g2d_videodev = { static
> struct v4l2_m2m_ops g2d_m2m_ops = {
> .device_run = device_run,
> .job_abort = job_abort,
> - .lock = g2d_lock,
> - .unlock = g2d_unlock,
> };
>
> static const struct of_device_id exynos_g2d_match[]; diff --git
> a/drivers/media/platform/s5p-g2d/g2d.h b/drivers/media/platform/s5p-
> g2d/g2d.h
> index 300ca05..b0e52ab 100644
> --- a/drivers/media/platform/s5p-g2d/g2d.h
> +++ b/drivers/media/platform/s5p-g2d/g2d.h
> @@ -57,7 +57,6 @@ struct g2d_frame {
> struct g2d_ctx {
> struct v4l2_fh fh;
> struct g2d_dev *dev;
> - struct v4l2_m2m_ctx *m2m_ctx;
> struct g2d_frame in;
> struct g2d_frame out;
> struct v4l2_ctrl *ctrl_hflip;
> --
> 1.7.4.1
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-media"
> in the body of a message to majord...@vger.kernel.org More majordomo
> info at http://vger.kernel.org/majordomo-info.html
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
