From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mailout4.samsung.com ([203.254.224.34]:62641 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754105Ab3IMM6V (ORCPT ); Fri, 13 Sep 2013 08:58:21 -0400 From: Sylwester Nawrocki To: linux-media@vger.kernel.org Cc: hverkuil@xs4all.nl, kyungmin.park@samsung.com, pawel@osciak.com, javier.martin@vista-silicon.com, m.szyprowski@samsung.com, shaik.ameer@samsung.com, arun.kk@samsung.com, k.debski@samsung.com, linux-samsung-soc@vger.kernel.org, Sylwester Nawrocki Subject: [PATCH RFC 6/7] exynos-gsc: Use mem-to-mem ioctl helpers Date: Fri, 13 Sep 2013 14:56:25 +0200 Message-id: <1379076986-10446-7-git-send-email-s.nawrocki@samsung.com> In-reply-to: <1379076986-10446-1-git-send-email-s.nawrocki@samsung.com> References: <1379076986-10446-1-git-send-email-s.nawrocki@samsung.com> Sender: linux-media-owner@vger.kernel.org List-ID: Simplify the driver by using the m2m ioctl and vb2 helpers. TODO: Add setting of default initial format. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyugmin Park --- drivers/media/platform/exynos-gsc/gsc-core.h | 12 --- drivers/media/platform/exynos-gsc/gsc-m2m.c | 109 ++++---------------------- 2 files changed, 16 insertions(+), 105 deletions(-) diff --git a/drivers/media/platform/exynos-gsc/gsc-core.h b/drivers/media/platform/exynos-gsc/gsc-core.h index cc19bba..1afad32 100644 --- a/drivers/media/platform/exynos-gsc/gsc-core.h +++ b/drivers/media/platform/exynos-gsc/gsc-core.h @@ -464,18 +464,6 @@ static inline void gsc_hw_clear_irq(struct gsc_dev *dev, int irq) writel(cfg, dev->regs + GSC_IRQ); } -static inline void gsc_lock(struct vb2_queue *vq) -{ - struct gsc_ctx *ctx = vb2_get_drv_priv(vq); - mutex_lock(&ctx->gsc_dev->lock); -} - -static inline void gsc_unlock(struct vb2_queue *vq) -{ - struct gsc_ctx *ctx = vb2_get_drv_priv(vq); - mutex_unlock(&ctx->gsc_dev->lock); -} - static inline bool gsc_ctx_state_is_set(u32 mask, struct gsc_ctx *ctx) { unsigned long flags; diff --git a/drivers/media/platform/exynos-gsc/gsc-m2m.c b/drivers/media/platform/exynos-gsc/gsc-m2m.c index 40a73f7..4f5d6cb 100644 --- a/drivers/media/platform/exynos-gsc/gsc-m2m.c +++ b/drivers/media/platform/exynos-gsc/gsc-m2m.c @@ -262,8 +262,8 @@ static struct vb2_ops gsc_m2m_qops = { .queue_setup = gsc_m2m_queue_setup, .buf_prepare = gsc_m2m_buf_prepare, .buf_queue = gsc_m2m_buf_queue, - .wait_prepare = gsc_unlock, - .wait_finish = gsc_lock, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, .stop_streaming = gsc_m2m_stop_streaming, .start_streaming = gsc_m2m_start_streaming, }; @@ -376,57 +376,6 @@ static int gsc_m2m_reqbufs(struct file *file, void *fh, return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs); } -static int gsc_m2m_expbuf(struct file *file, void *fh, - struct v4l2_exportbuffer *eb) -{ - struct gsc_ctx *ctx = fh_to_ctx(fh); - return v4l2_m2m_expbuf(file, ctx->m2m_ctx, eb); -} - -static int gsc_m2m_querybuf(struct file *file, void *fh, - struct v4l2_buffer *buf) -{ - struct gsc_ctx *ctx = fh_to_ctx(fh); - return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf); -} - -static int gsc_m2m_qbuf(struct file *file, void *fh, - struct v4l2_buffer *buf) -{ - struct gsc_ctx *ctx = fh_to_ctx(fh); - return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf); -} - -static int gsc_m2m_dqbuf(struct file *file, void *fh, - struct v4l2_buffer *buf) -{ - struct gsc_ctx *ctx = fh_to_ctx(fh); - return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf); -} - -static int gsc_m2m_streamon(struct file *file, void *fh, - enum v4l2_buf_type type) -{ - struct gsc_ctx *ctx = fh_to_ctx(fh); - - /* The source and target color format need to be set */ - if (V4L2_TYPE_IS_OUTPUT(type)) { - if (!gsc_ctx_state_is_set(GSC_SRC_FMT, ctx)) - return -EINVAL; - } else if (!gsc_ctx_state_is_set(GSC_DST_FMT, ctx)) { - return -EINVAL; - } - - return v4l2_m2m_streamon(file, ctx->m2m_ctx, type); -} - -static int gsc_m2m_streamoff(struct file *file, void *fh, - enum v4l2_buf_type type) -{ - struct gsc_ctx *ctx = fh_to_ctx(fh); - return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type); -} - /* Return 1 if rectangle a is enclosed in rectangle b, or 0 otherwise. */ static int is_rectangle_enclosed(struct v4l2_rect *a, struct v4l2_rect *b) { @@ -563,13 +512,15 @@ static const struct v4l2_ioctl_ops gsc_m2m_ioctl_ops = { .vidioc_try_fmt_vid_out_mplane = gsc_m2m_try_fmt_mplane, .vidioc_s_fmt_vid_cap_mplane = gsc_m2m_s_fmt_mplane, .vidioc_s_fmt_vid_out_mplane = gsc_m2m_s_fmt_mplane, - .vidioc_reqbufs = gsc_m2m_reqbufs, - .vidioc_expbuf = gsc_m2m_expbuf, - .vidioc_querybuf = gsc_m2m_querybuf, - .vidioc_qbuf = gsc_m2m_qbuf, - .vidioc_dqbuf = gsc_m2m_dqbuf, - .vidioc_streamon = gsc_m2m_streamon, - .vidioc_streamoff = gsc_m2m_streamoff, + + .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, + .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, + .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, + .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, + .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, + + .vidioc_streamon = v4l2_m2m_ioctl_streamon, + .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, .vidioc_g_selection = gsc_m2m_g_selection, .vidioc_s_selection = gsc_m2m_s_selection }; @@ -588,6 +539,7 @@ 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->gsc_dev->lock; ret = vb2_queue_init(src_vq); if (ret) @@ -601,6 +553,7 @@ 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->gsc_dev->lock; return vb2_queue_init(dst_vq); } @@ -648,6 +601,7 @@ static int gsc_m2m_open(struct file *file) ret = PTR_ERR(ctx->m2m_ctx); goto error_ctrls; } + ctx->fh.m2m_ctx = ctx->m2m_ctx; if (gsc->m2m.refcnt++ == 0) set_bit(ST_M2M_OPEN, &gsc->state); @@ -691,44 +645,13 @@ static int gsc_m2m_release(struct file *file) return 0; } -static unsigned int gsc_m2m_poll(struct file *file, - struct poll_table_struct *wait) -{ - struct gsc_ctx *ctx = fh_to_ctx(file->private_data); - struct gsc_dev *gsc = ctx->gsc_dev; - int ret; - - if (mutex_lock_interruptible(&gsc->lock)) - return -ERESTARTSYS; - - ret = v4l2_m2m_poll(file, ctx->m2m_ctx, wait); - mutex_unlock(&gsc->lock); - - return ret; -} - -static int gsc_m2m_mmap(struct file *file, struct vm_area_struct *vma) -{ - struct gsc_ctx *ctx = fh_to_ctx(file->private_data); - struct gsc_dev *gsc = ctx->gsc_dev; - int ret; - - if (mutex_lock_interruptible(&gsc->lock)) - return -ERESTARTSYS; - - ret = v4l2_m2m_mmap(file, ctx->m2m_ctx, vma); - mutex_unlock(&gsc->lock); - - return ret; -} - static const struct v4l2_file_operations gsc_m2m_fops = { .owner = THIS_MODULE, .open = gsc_m2m_open, .release = gsc_m2m_release, - .poll = gsc_m2m_poll, + .poll = v4l2_m2m_fop_poll, .unlocked_ioctl = video_ioctl2, - .mmap = gsc_m2m_mmap, + .mmap = v4l2_m2m_fop_mmap, }; static struct v4l2_m2m_ops gsc_m2m_ops = { -- 1.7.9.5