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media: mx2_emmaprp: use struct v4l2_fh

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Convert this driver to use struct v4l2_fh and as a result switch to
using vb2/v4l2_mem2mem helper functions as well.

Only compile-tested due to lack of hardware. This driver is however
very similar to the m2m-deinterlace driver in this respect, and that
v4l2_fh conversion has been properly tested.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Hans Verkuil 2019-07-17 09:43:51 -04:00 • committed by Mauro Carvalho Chehab
parent 854aca6d3a
commit 65953018b3
1 changed files with 32 additions and 100 deletions
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132
drivers/media/platform/mx2_emmaprp.c
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@ -207,11 +207,11 @@ struct emmaprp_dev {
};
struct emmaprp_ctx {
struct v4l2_fh fh;
struct emmaprp_dev *dev;
/* Abort requested by m2m */
int aborting;
struct emmaprp_q_data q_data[2];
struct v4l2_m2m_ctx *m2m_ctx;
};
static struct emmaprp_q_data *get_q_data(struct emmaprp_ctx *ctx,
@ -240,7 +240,7 @@ static void emmaprp_job_abort(void *priv)
dprintk(pcdev, "Aborting task\n");
v4l2_m2m_job_finish(pcdev->m2m_dev, ctx->m2m_ctx);
v4l2_m2m_job_finish(pcdev->m2m_dev, ctx->fh.m2m_ctx);
}
static inline void emmaprp_dump_regs(struct emmaprp_dev *pcdev)
@ -275,8 +275,8 @@ static void emmaprp_device_run(void *priv)
dma_addr_t p_in, p_out;
u32 tmp;
src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
s_q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
s_width = s_q_data->width;
@ -350,8 +350,8 @@ static irqreturn_t emmaprp_irq(int irq_emma, void *data)
pr_err("PrP bus error occurred, this transfer is probably corrupted\n");
writel(PRP_CNTL_SWRST, pcdev->base_emma + PRP_CNTL);
} else if (irqst & PRP_INTR_ST_CH2B1CI) { /* buffer ready */
src_vb = v4l2_m2m_src_buf_remove(curr_ctx->m2m_ctx);
dst_vb = v4l2_m2m_dst_buf_remove(curr_ctx->m2m_ctx);
src_vb = v4l2_m2m_src_buf_remove(curr_ctx->fh.m2m_ctx);
dst_vb = v4l2_m2m_dst_buf_remove(curr_ctx->fh.m2m_ctx);
dst_vb->vb2_buf.timestamp = src_vb->vb2_buf.timestamp;
dst_vb->flags &=
@ -368,7 +368,7 @@ static irqreturn_t emmaprp_irq(int irq_emma, void *data)
}
}
v4l2_m2m_job_finish(pcdev->m2m_dev, curr_ctx->m2m_ctx);
v4l2_m2m_job_finish(pcdev->m2m_dev, curr_ctx->fh.m2m_ctx);
return IRQ_HANDLED;
}
@ -429,7 +429,7 @@ static int vidioc_g_fmt(struct emmaprp_ctx *ctx, struct v4l2_format *f)
struct vb2_queue *vq;
struct emmaprp_q_data *q_data;
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;
@ -534,7 +534,7 @@ static int vidioc_s_fmt(struct emmaprp_ctx *ctx, struct v4l2_format *f)
struct vb2_queue *vq;
int ret;
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;
@ -590,52 +590,6 @@ static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
return vidioc_s_fmt(priv, f);
}
static int vidioc_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *reqbufs)
{
struct emmaprp_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 emmaprp_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 emmaprp_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 emmaprp_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 emmaprp_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 emmaprp_ctx *ctx = priv;
return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
}
static const struct v4l2_ioctl_ops emmaprp_ioctl_ops = {
.vidioc_querycap = vidioc_querycap,
@ -649,14 +603,14 @@ static const struct v4l2_ioctl_ops emmaprp_ioctl_ops = {
.vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out,
.vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out,
.vidioc_reqbufs = vidioc_reqbufs,
.vidioc_querybuf = vidioc_querybuf,
.vidioc_qbuf = vidioc_qbuf,
.vidioc_dqbuf = vidioc_dqbuf,
.vidioc_streamon = vidioc_streamon,
.vidioc_streamoff = vidioc_streamoff,
.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_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
.vidioc_streamon = v4l2_m2m_ioctl_streamon,
.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
};
@ -716,7 +670,7 @@ static void emmaprp_buf_queue(struct vb2_buffer *vb)
{
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
struct emmaprp_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
v4l2_m2m_buf_queue(ctx->m2m_ctx, vbuf);
v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
}
static const struct vb2_ops emmaprp_qops = {
@ -734,7 +688,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq,
int ret;
src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
src_vq->io_modes = VB2_MMAP | VB2_USERPTR;
src_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
src_vq->drv_priv = ctx;
src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
src_vq->ops = &emmaprp_qops;
@ -748,7 +702,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq,
return ret;
dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
dst_vq->io_modes = VB2_MMAP | VB2_USERPTR;
dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
dst_vq->drv_priv = ctx;
dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
dst_vq->ops = &emmaprp_qops;
@ -772,7 +726,8 @@ static int emmaprp_open(struct file *file)
if (!ctx)
return -ENOMEM;
file->private_data = ctx;
v4l2_fh_init(&ctx->fh, video_devdata(file));
file->private_data = &ctx->fh;
ctx->dev = pcdev;
if (mutex_lock_interruptible(&pcdev->dev_mutex)) {
@ -780,10 +735,10 @@ static int emmaprp_open(struct file *file)
return -ERESTARTSYS;
}
ctx->m2m_ctx = v4l2_m2m_ctx_init(pcdev->m2m_dev, ctx, &queue_init);
ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(pcdev->m2m_dev, ctx, &queue_init);
if (IS_ERR(ctx->m2m_ctx)) {
int ret = PTR_ERR(ctx->m2m_ctx);
if (IS_ERR(ctx->fh.m2m_ctx)) {
int ret = PTR_ERR(ctx->fh.m2m_ctx);
mutex_unlock(&pcdev->dev_mutex);
kfree(ctx);
@ -794,9 +749,10 @@ static int emmaprp_open(struct file *file)
clk_prepare_enable(pcdev->clk_emma_ahb);
ctx->q_data[V4L2_M2M_SRC].fmt = &formats[1];
ctx->q_data[V4L2_M2M_DST].fmt = &formats[0];
v4l2_fh_add(&ctx->fh);
mutex_unlock(&pcdev->dev_mutex);
dprintk(pcdev, "Created instance %p, m2m_ctx: %p\n", ctx, ctx->m2m_ctx);
dprintk(pcdev, "Created instance %p, m2m_ctx: %p\n", ctx, ctx->fh.m2m_ctx);
return 0;
}
@ -811,46 +767,22 @@ static int emmaprp_release(struct file *file)
mutex_lock(&pcdev->dev_mutex);
clk_disable_unprepare(pcdev->clk_emma_ahb);
clk_disable_unprepare(pcdev->clk_emma_ipg);
v4l2_m2m_ctx_release(ctx->m2m_ctx);
v4l2_fh_del(&ctx->fh);
v4l2_fh_exit(&ctx->fh);
v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
mutex_unlock(&pcdev->dev_mutex);
kfree(ctx);
return 0;
}
static __poll_t emmaprp_poll(struct file *file,
struct poll_table_struct *wait)
{
struct emmaprp_dev *pcdev = video_drvdata(file);
struct emmaprp_ctx *ctx = file->private_data;
__poll_t res;
mutex_lock(&pcdev->dev_mutex);
res = v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
mutex_unlock(&pcdev->dev_mutex);
return res;
}
static int emmaprp_mmap(struct file *file, struct vm_area_struct *vma)
{
struct emmaprp_dev *pcdev = video_drvdata(file);
struct emmaprp_ctx *ctx = file->private_data;
int ret;
if (mutex_lock_interruptible(&pcdev->dev_mutex))
return -ERESTARTSYS;
ret = v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
mutex_unlock(&pcdev->dev_mutex);
return ret;
}
static const struct v4l2_file_operations emmaprp_fops = {
.owner = THIS_MODULE,
.open = emmaprp_open,
.release = emmaprp_release,
.poll = emmaprp_poll,
.poll = v4l2_m2m_fop_poll,
.unlocked_ioctl = video_ioctl2,
.mmap = emmaprp_mmap,
.mmap = v4l2_m2m_fop_mmap,
};
static const struct video_device emmaprp_videodev = {