#include <media/v4l2-mem2mem.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
+#include <media/v4l2-ctrls.h>
#include <media/videobuf2-vmalloc.h>
#define MEM2MEM_TEST_MODULE_NAME "mem2mem-testdev"
},
};
+#define NUM_FORMATS ARRAY_SIZE(formats)
+
/* Per-queue, driver-specific private data */
struct m2mtest_q_data {
unsigned int width;
V4L2_M2M_DST = 1,
};
-#define V4L2_CID_TRANS_TIME_MSEC V4L2_CID_PRIVATE_BASE
-#define V4L2_CID_TRANS_NUM_BUFS (V4L2_CID_PRIVATE_BASE + 1)
-
-static struct v4l2_queryctrl m2mtest_ctrls[] = {
- {
- .id = V4L2_CID_HFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Mirror",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0,
- .flags = 0,
- }, {
- .id = V4L2_CID_VFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Vertical Mirror",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0,
- .flags = 0,
- }, {
- .id = V4L2_CID_TRANS_TIME_MSEC,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Transaction time (msec)",
- .minimum = 1,
- .maximum = 10000,
- .step = 100,
- .default_value = 1000,
- .flags = 0,
- }, {
- .id = V4L2_CID_TRANS_NUM_BUFS,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Buffers per transaction",
- .minimum = 1,
- .maximum = MEM2MEM_DEF_NUM_BUFS,
- .step = 1,
- .default_value = 1,
- .flags = 0,
- },
-};
-
-#define NUM_FORMATS ARRAY_SIZE(formats)
+#define V4L2_CID_TRANS_TIME_MSEC (V4L2_CID_USER_BASE + 0x1000)
+#define V4L2_CID_TRANS_NUM_BUFS (V4L2_CID_USER_BASE + 0x1001)
static struct m2mtest_fmt *find_format(struct v4l2_format *f)
{
};
struct m2mtest_ctx {
+ struct v4l2_fh fh;
struct m2mtest_dev *dev;
+ struct v4l2_ctrl_handler hdl;
+
/* Processed buffers in this transaction */
u8 num_processed;
struct m2mtest_q_data q_data[2];
};
+static inline struct m2mtest_ctx *file2ctx(struct file *file)
+{
+ return container_of(file->private_data, struct m2mtest_ctx, fh);
+}
+
static struct m2mtest_q_data *get_q_data(struct m2mtest_ctx *ctx,
enum v4l2_buf_type type)
{
}
-static struct v4l2_queryctrl *get_ctrl(int id)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(m2mtest_ctrls); ++i) {
- if (id == m2mtest_ctrls[i].id)
- return &m2mtest_ctrls[i];
- }
-
- return NULL;
-}
-
static int device_process(struct m2mtest_ctx *ctx,
struct vb2_buffer *in_vb,
struct vb2_buffer *out_vb)
static int vidioc_g_fmt_vid_out(struct file *file, void *priv,
struct v4l2_format *f)
{
- return vidioc_g_fmt(priv, f);
+ return vidioc_g_fmt(file2ctx(file), f);
}
static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
- return vidioc_g_fmt(priv, f);
+ return vidioc_g_fmt(file2ctx(file), f);
}
static int vidioc_try_fmt(struct v4l2_format *f, struct m2mtest_fmt *fmt)
struct v4l2_format *f)
{
struct m2mtest_fmt *fmt;
- struct m2mtest_ctx *ctx = priv;
+ struct m2mtest_ctx *ctx = file2ctx(file);
fmt = find_format(f);
if (!fmt || !(fmt->types & MEM2MEM_CAPTURE)) {
struct v4l2_format *f)
{
struct m2mtest_fmt *fmt;
- struct m2mtest_ctx *ctx = priv;
+ struct m2mtest_ctx *ctx = file2ctx(file);
fmt = find_format(f);
if (!fmt || !(fmt->types & MEM2MEM_OUTPUT)) {
if (ret)
return ret;
- return vidioc_s_fmt(priv, f);
+ return vidioc_s_fmt(file2ctx(file), f);
}
static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
if (ret)
return ret;
- return vidioc_s_fmt(priv, f);
+ return vidioc_s_fmt(file2ctx(file), f);
}
static int vidioc_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *reqbufs)
{
- struct m2mtest_ctx *ctx = priv;
+ struct m2mtest_ctx *ctx = file2ctx(file);
return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
}
static int vidioc_querybuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
- struct m2mtest_ctx *ctx = priv;
+ struct m2mtest_ctx *ctx = file2ctx(file);
return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
}
static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
{
- struct m2mtest_ctx *ctx = priv;
+ struct m2mtest_ctx *ctx = file2ctx(file);
return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
}
static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
{
- struct m2mtest_ctx *ctx = priv;
+ struct m2mtest_ctx *ctx = file2ctx(file);
return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
}
static int vidioc_streamon(struct file *file, void *priv,
enum v4l2_buf_type type)
{
- struct m2mtest_ctx *ctx = priv;
+ struct m2mtest_ctx *ctx = file2ctx(file);
return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
}
static int vidioc_streamoff(struct file *file, void *priv,
enum v4l2_buf_type type)
{
- struct m2mtest_ctx *ctx = priv;
+ struct m2mtest_ctx *ctx = file2ctx(file);
return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
}
-static int vidioc_queryctrl(struct file *file, void *priv,
- struct v4l2_queryctrl *qc)
-{
- struct v4l2_queryctrl *c;
-
- c = get_ctrl(qc->id);
- if (!c)
- return -EINVAL;
-
- *qc = *c;
- return 0;
-}
-
-static int vidioc_g_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
-{
- struct m2mtest_ctx *ctx = priv;
-
- switch (ctrl->id) {
- case V4L2_CID_HFLIP:
- ctrl->value = (ctx->mode & MEM2MEM_HFLIP) ? 1 : 0;
- break;
-
- case V4L2_CID_VFLIP:
- ctrl->value = (ctx->mode & MEM2MEM_VFLIP) ? 1 : 0;
- break;
-
- case V4L2_CID_TRANS_TIME_MSEC:
- ctrl->value = ctx->transtime;
- break;
-
- case V4L2_CID_TRANS_NUM_BUFS:
- ctrl->value = ctx->translen;
- break;
-
- default:
- v4l2_err(&ctx->dev->v4l2_dev, "Invalid control\n");
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int check_ctrl_val(struct m2mtest_ctx *ctx, struct v4l2_control *ctrl)
+static int m2mtest_s_ctrl(struct v4l2_ctrl *ctrl)
{
- struct v4l2_queryctrl *c;
-
- c = get_ctrl(ctrl->id);
- if (!c)
- return -EINVAL;
-
- if (ctrl->value < c->minimum || ctrl->value > c->maximum) {
- v4l2_err(&ctx->dev->v4l2_dev, "Value out of range\n");
- return -ERANGE;
- }
-
- return 0;
-}
-
-static int vidioc_s_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
-{
- struct m2mtest_ctx *ctx = priv;
- int ret = 0;
-
- ret = check_ctrl_val(ctx, ctrl);
- if (ret != 0)
- return ret;
+ struct m2mtest_ctx *ctx =
+ container_of(ctrl->handler, struct m2mtest_ctx, hdl);
switch (ctrl->id) {
case V4L2_CID_HFLIP:
- if (ctrl->value)
+ if (ctrl->val)
ctx->mode |= MEM2MEM_HFLIP;
else
ctx->mode &= ~MEM2MEM_HFLIP;
break;
case V4L2_CID_VFLIP:
- if (ctrl->value)
+ if (ctrl->val)
ctx->mode |= MEM2MEM_VFLIP;
else
ctx->mode &= ~MEM2MEM_VFLIP;
break;
case V4L2_CID_TRANS_TIME_MSEC:
- ctx->transtime = ctrl->value;
+ ctx->transtime = ctrl->val;
break;
case V4L2_CID_TRANS_NUM_BUFS:
- ctx->translen = ctrl->value;
+ ctx->translen = ctrl->val;
break;
default:
return 0;
}
+static const struct v4l2_ctrl_ops m2mtest_ctrl_ops = {
+ .s_ctrl = m2mtest_s_ctrl,
+};
+
static const struct v4l2_ioctl_ops m2mtest_ioctl_ops = {
.vidioc_querycap = vidioc_querycap,
.vidioc_streamon = vidioc_streamon,
.vidioc_streamoff = vidioc_streamoff,
-
- .vidioc_queryctrl = vidioc_queryctrl,
- .vidioc_g_ctrl = vidioc_g_ctrl,
- .vidioc_s_ctrl = vidioc_s_ctrl,
};
return vb2_queue_init(dst_vq);
}
+static const struct v4l2_ctrl_config m2mtest_ctrl_trans_time_msec = {
+ .ops = &m2mtest_ctrl_ops,
+ .id = V4L2_CID_TRANS_TIME_MSEC,
+ .name = "Transaction Time (msec)",
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .def = 1001,
+ .min = 1,
+ .max = 10001,
+ .step = 100,
+};
+
+static const struct v4l2_ctrl_config m2mtest_ctrl_trans_num_bufs = {
+ .ops = &m2mtest_ctrl_ops,
+ .id = V4L2_CID_TRANS_NUM_BUFS,
+ .name = "Buffers Per Transaction",
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .def = 1,
+ .min = 1,
+ .max = MEM2MEM_DEF_NUM_BUFS,
+ .step = 1,
+};
+
/*
* File operations
*/
{
struct m2mtest_dev *dev = video_drvdata(file);
struct m2mtest_ctx *ctx = NULL;
+ struct v4l2_ctrl_handler *hdl;
ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
if (!ctx)
return -ENOMEM;
- file->private_data = ctx;
+ v4l2_fh_init(&ctx->fh, video_devdata(file));
+ file->private_data = &ctx->fh;
ctx->dev = dev;
- ctx->translen = MEM2MEM_DEF_TRANSLEN;
- ctx->transtime = MEM2MEM_DEF_TRANSTIME;
- ctx->num_processed = 0;
- ctx->mode = 0;
+ hdl = &ctx->hdl;
+ v4l2_ctrl_handler_init(hdl, 4);
+ v4l2_ctrl_new_std(hdl, &m2mtest_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(hdl, &m2mtest_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_custom(hdl, &m2mtest_ctrl_trans_time_msec, NULL);
+ v4l2_ctrl_new_custom(hdl, &m2mtest_ctrl_trans_num_bufs, NULL);
+ if (hdl->error) {
+ int err = hdl->error;
+
+ v4l2_ctrl_handler_free(hdl);
+ return err;
+ }
+ ctx->fh.ctrl_handler = hdl;
+ v4l2_ctrl_handler_setup(hdl);
ctx->q_data[V4L2_M2M_SRC].fmt = &formats[0];
ctx->q_data[V4L2_M2M_DST].fmt = &formats[0];
if (IS_ERR(ctx->m2m_ctx)) {
int ret = PTR_ERR(ctx->m2m_ctx);
+ v4l2_ctrl_handler_free(hdl);
kfree(ctx);
return ret;
}
+ v4l2_fh_add(&ctx->fh);
atomic_inc(&dev->num_inst);
dprintk(dev, "Created instance %p, m2m_ctx: %p\n", ctx, ctx->m2m_ctx);
static int m2mtest_release(struct file *file)
{
struct m2mtest_dev *dev = video_drvdata(file);
- struct m2mtest_ctx *ctx = file->private_data;
+ struct m2mtest_ctx *ctx = file2ctx(file);
dprintk(dev, "Releasing instance %p\n", ctx);
+ v4l2_fh_del(&ctx->fh);
+ v4l2_fh_exit(&ctx->fh);
+ v4l2_ctrl_handler_free(&ctx->hdl);
v4l2_m2m_ctx_release(ctx->m2m_ctx);
kfree(ctx);
static unsigned int m2mtest_poll(struct file *file,
struct poll_table_struct *wait)
{
- struct m2mtest_ctx *ctx = file->private_data;
+ struct m2mtest_ctx *ctx = file2ctx(file);
return v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
}
static int m2mtest_mmap(struct file *file, struct vm_area_struct *vma)
{
- struct m2mtest_ctx *ctx = file->private_data;
+ struct m2mtest_ctx *ctx = file2ctx(file);
return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
}
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