#include <media/v4l2-event.h>
#include <media/videobuf2-vmalloc.h>
-#define MEM2MEM_TEST_MODULE_NAME "mem2mem-testdev"
-
MODULE_DESCRIPTION("Virtual device for mem2mem framework testing");
MODULE_AUTHOR("Pawel Osciak, <pawel@osciak.com>");
MODULE_LICENSE("GPL");
MODULE_VERSION("0.1.1");
+MODULE_ALIAS("mem2mem_testdev");
static unsigned debug;
module_param(debug, uint, 0644);
#define MEM2MEM_CAPTURE (1 << 0)
#define MEM2MEM_OUTPUT (1 << 1)
-#define MEM2MEM_NAME "m2m-testdev"
+#define MEM2MEM_NAME "vim2m"
/* Per queue */
#define MEM2MEM_DEF_NUM_BUFS VIDEO_MAX_FRAME
v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: " fmt, __func__, ## arg)
-static void m2mtest_dev_release(struct device *dev)
+static void vim2m_dev_release(struct device *dev)
{}
-static struct platform_device m2mtest_pdev = {
+static struct platform_device vim2m_pdev = {
.name = MEM2MEM_NAME,
- .dev.release = m2mtest_dev_release,
+ .dev.release = vim2m_dev_release,
};
-struct m2mtest_fmt {
+struct vim2m_fmt {
char *name;
u32 fourcc;
int depth;
u32 types;
};
-static struct m2mtest_fmt formats[] = {
+static struct vim2m_fmt formats[] = {
{
.name = "RGB565 (BE)",
.fourcc = V4L2_PIX_FMT_RGB565X, /* rrrrrggg gggbbbbb */
#define NUM_FORMATS ARRAY_SIZE(formats)
/* Per-queue, driver-specific private data */
-struct m2mtest_q_data {
+struct vim2m_q_data {
unsigned int width;
unsigned int height;
unsigned int sizeimage;
unsigned int sequence;
- struct m2mtest_fmt *fmt;
+ struct vim2m_fmt *fmt;
};
enum {
#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)
+static struct vim2m_fmt *find_format(struct v4l2_format *f)
{
- struct m2mtest_fmt *fmt;
+ struct vim2m_fmt *fmt;
unsigned int k;
for (k = 0; k < NUM_FORMATS; k++) {
return &formats[k];
}
-struct m2mtest_dev {
+struct vim2m_dev {
struct v4l2_device v4l2_dev;
struct video_device *vfd;
struct v4l2_m2m_dev *m2m_dev;
};
-struct m2mtest_ctx {
+struct vim2m_ctx {
struct v4l2_fh fh;
- struct m2mtest_dev *dev;
+ struct vim2m_dev *dev;
struct v4l2_ctrl_handler hdl;
enum v4l2_colorspace colorspace;
/* Source and destination queue data */
- struct m2mtest_q_data q_data[2];
+ struct vim2m_q_data q_data[2];
};
-static inline struct m2mtest_ctx *file2ctx(struct file *file)
+static inline struct vim2m_ctx *file2ctx(struct file *file)
{
- return container_of(file->private_data, struct m2mtest_ctx, fh);
+ return container_of(file->private_data, struct vim2m_ctx, fh);
}
-static struct m2mtest_q_data *get_q_data(struct m2mtest_ctx *ctx,
+static struct vim2m_q_data *get_q_data(struct vim2m_ctx *ctx,
enum v4l2_buf_type type)
{
switch (type) {
}
-static int device_process(struct m2mtest_ctx *ctx,
+static int device_process(struct vim2m_ctx *ctx,
struct vb2_buffer *in_vb,
struct vb2_buffer *out_vb)
{
- struct m2mtest_dev *dev = ctx->dev;
- struct m2mtest_q_data *q_data;
+ struct vim2m_dev *dev = ctx->dev;
+ struct vim2m_q_data *q_data;
u8 *p_in, *p_out;
int x, y, t, w;
int tile_w, bytes_left;
return 0;
}
-static void schedule_irq(struct m2mtest_dev *dev, int msec_timeout)
+static void schedule_irq(struct vim2m_dev *dev, int msec_timeout)
{
dprintk(dev, "Scheduling a simulated irq\n");
mod_timer(&dev->timer, jiffies + msecs_to_jiffies(msec_timeout));
*/
static int job_ready(void *priv)
{
- struct m2mtest_ctx *ctx = priv;
+ struct vim2m_ctx *ctx = priv;
if (v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) < ctx->translen
|| v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx) < ctx->translen) {
static void job_abort(void *priv)
{
- struct m2mtest_ctx *ctx = priv;
+ struct vim2m_ctx *ctx = priv;
/* Will cancel the transaction in the next interrupt handler */
ctx->aborting = 1;
*/
static void device_run(void *priv)
{
- struct m2mtest_ctx *ctx = priv;
- struct m2mtest_dev *dev = ctx->dev;
+ struct vim2m_ctx *ctx = priv;
+ struct vim2m_dev *dev = ctx->dev;
struct vb2_buffer *src_buf, *dst_buf;
src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
static void device_isr(unsigned long priv)
{
- struct m2mtest_dev *m2mtest_dev = (struct m2mtest_dev *)priv;
- struct m2mtest_ctx *curr_ctx;
+ struct vim2m_dev *vim2m_dev = (struct vim2m_dev *)priv;
+ struct vim2m_ctx *curr_ctx;
struct vb2_buffer *src_vb, *dst_vb;
unsigned long flags;
- curr_ctx = v4l2_m2m_get_curr_priv(m2mtest_dev->m2m_dev);
+ curr_ctx = v4l2_m2m_get_curr_priv(vim2m_dev->m2m_dev);
if (NULL == curr_ctx) {
pr_err("Instance released before the end of transaction\n");
curr_ctx->num_processed++;
- spin_lock_irqsave(&m2mtest_dev->irqlock, flags);
+ spin_lock_irqsave(&vim2m_dev->irqlock, flags);
v4l2_m2m_buf_done(src_vb, VB2_BUF_STATE_DONE);
v4l2_m2m_buf_done(dst_vb, VB2_BUF_STATE_DONE);
- spin_unlock_irqrestore(&m2mtest_dev->irqlock, flags);
+ spin_unlock_irqrestore(&vim2m_dev->irqlock, flags);
if (curr_ctx->num_processed == curr_ctx->translen
|| curr_ctx->aborting) {
dprintk(curr_ctx->dev, "Finishing transaction\n");
curr_ctx->num_processed = 0;
- v4l2_m2m_job_finish(m2mtest_dev->m2m_dev, curr_ctx->fh.m2m_ctx);
+ v4l2_m2m_job_finish(vim2m_dev->m2m_dev, curr_ctx->fh.m2m_ctx);
} else {
device_run(curr_ctx);
}
static int enum_fmt(struct v4l2_fmtdesc *f, u32 type)
{
int i, num;
- struct m2mtest_fmt *fmt;
+ struct vim2m_fmt *fmt;
num = 0;
return enum_fmt(f, MEM2MEM_OUTPUT);
}
-static int vidioc_g_fmt(struct m2mtest_ctx *ctx, struct v4l2_format *f)
+static int vidioc_g_fmt(struct vim2m_ctx *ctx, struct v4l2_format *f)
{
struct vb2_queue *vq;
- struct m2mtest_q_data *q_data;
+ struct vim2m_q_data *q_data;
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
if (!vq)
return vidioc_g_fmt(file2ctx(file), f);
}
-static int vidioc_try_fmt(struct v4l2_format *f, struct m2mtest_fmt *fmt)
+static int vidioc_try_fmt(struct v4l2_format *f, struct vim2m_fmt *fmt)
{
/* V4L2 specification suggests the driver corrects the format struct
* if any of the dimensions is unsupported */
static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct m2mtest_fmt *fmt;
- struct m2mtest_ctx *ctx = file2ctx(file);
+ struct vim2m_fmt *fmt;
+ struct vim2m_ctx *ctx = file2ctx(file);
fmt = find_format(f);
if (!fmt) {
static int vidioc_try_fmt_vid_out(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct m2mtest_fmt *fmt;
- struct m2mtest_ctx *ctx = file2ctx(file);
+ struct vim2m_fmt *fmt;
+ struct vim2m_ctx *ctx = file2ctx(file);
fmt = find_format(f);
if (!fmt) {
return vidioc_try_fmt(f, fmt);
}
-static int vidioc_s_fmt(struct m2mtest_ctx *ctx, struct v4l2_format *f)
+static int vidioc_s_fmt(struct vim2m_ctx *ctx, struct v4l2_format *f)
{
- struct m2mtest_q_data *q_data;
+ struct vim2m_q_data *q_data;
struct vb2_queue *vq;
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct m2mtest_ctx *ctx = file2ctx(file);
+ struct vim2m_ctx *ctx = file2ctx(file);
int ret;
ret = vidioc_try_fmt_vid_out(file, priv, f);
return ret;
}
-static int m2mtest_s_ctrl(struct v4l2_ctrl *ctrl)
+static int vim2m_s_ctrl(struct v4l2_ctrl *ctrl)
{
- struct m2mtest_ctx *ctx =
- container_of(ctrl->handler, struct m2mtest_ctx, hdl);
+ struct vim2m_ctx *ctx =
+ container_of(ctrl->handler, struct vim2m_ctx, hdl);
switch (ctrl->id) {
case V4L2_CID_HFLIP:
return 0;
}
-static const struct v4l2_ctrl_ops m2mtest_ctrl_ops = {
- .s_ctrl = m2mtest_s_ctrl,
+static const struct v4l2_ctrl_ops vim2m_ctrl_ops = {
+ .s_ctrl = vim2m_s_ctrl,
};
-static const struct v4l2_ioctl_ops m2mtest_ioctl_ops = {
+static const struct v4l2_ioctl_ops vim2m_ioctl_ops = {
.vidioc_querycap = vidioc_querycap,
.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
* Queue operations
*/
-static int m2mtest_queue_setup(struct vb2_queue *vq,
+static int vim2m_queue_setup(struct vb2_queue *vq,
const struct v4l2_format *fmt,
unsigned int *nbuffers, unsigned int *nplanes,
unsigned int sizes[], void *alloc_ctxs[])
{
- struct m2mtest_ctx *ctx = vb2_get_drv_priv(vq);
- struct m2mtest_q_data *q_data;
+ struct vim2m_ctx *ctx = vb2_get_drv_priv(vq);
+ struct vim2m_q_data *q_data;
unsigned int size, count = *nbuffers;
q_data = get_q_data(ctx, vq->type);
return 0;
}
-static int m2mtest_buf_prepare(struct vb2_buffer *vb)
+static int vim2m_buf_prepare(struct vb2_buffer *vb)
{
- struct m2mtest_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
- struct m2mtest_q_data *q_data;
+ struct vim2m_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct vim2m_q_data *q_data;
dprintk(ctx->dev, "type: %d\n", vb->vb2_queue->type);
return 0;
}
-static void m2mtest_buf_queue(struct vb2_buffer *vb)
+static void vim2m_buf_queue(struct vb2_buffer *vb)
{
- struct m2mtest_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct vim2m_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vb);
}
-static int m2mtest_start_streaming(struct vb2_queue *q, unsigned count)
+static int vim2m_start_streaming(struct vb2_queue *q, unsigned count)
{
- struct m2mtest_ctx *ctx = vb2_get_drv_priv(q);
- struct m2mtest_q_data *q_data = get_q_data(ctx, q->type);
+ struct vim2m_ctx *ctx = vb2_get_drv_priv(q);
+ struct vim2m_q_data *q_data = get_q_data(ctx, q->type);
q_data->sequence = 0;
return 0;
}
-static void m2mtest_stop_streaming(struct vb2_queue *q)
+static void vim2m_stop_streaming(struct vb2_queue *q)
{
- struct m2mtest_ctx *ctx = vb2_get_drv_priv(q);
+ struct vim2m_ctx *ctx = vb2_get_drv_priv(q);
struct vb2_buffer *vb;
unsigned long flags;
}
}
-static struct vb2_ops m2mtest_qops = {
- .queue_setup = m2mtest_queue_setup,
- .buf_prepare = m2mtest_buf_prepare,
- .buf_queue = m2mtest_buf_queue,
- .start_streaming = m2mtest_start_streaming,
- .stop_streaming = m2mtest_stop_streaming,
+static struct vb2_ops vim2m_qops = {
+ .queue_setup = vim2m_queue_setup,
+ .buf_prepare = vim2m_buf_prepare,
+ .buf_queue = vim2m_buf_queue,
+ .start_streaming = vim2m_start_streaming,
+ .stop_streaming = vim2m_stop_streaming,
.wait_prepare = vb2_ops_wait_prepare,
.wait_finish = vb2_ops_wait_finish,
};
static int queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
{
- struct m2mtest_ctx *ctx = priv;
+ struct vim2m_ctx *ctx = priv;
int ret;
src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
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 = &m2mtest_qops;
+ src_vq->ops = &vim2m_qops;
src_vq->mem_ops = &vb2_vmalloc_memops;
src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
src_vq->lock = &ctx->dev->dev_mutex;
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 = &m2mtest_qops;
+ dst_vq->ops = &vim2m_qops;
dst_vq->mem_ops = &vb2_vmalloc_memops;
dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
dst_vq->lock = &ctx->dev->dev_mutex;
return vb2_queue_init(dst_vq);
}
-static const struct v4l2_ctrl_config m2mtest_ctrl_trans_time_msec = {
- .ops = &m2mtest_ctrl_ops,
+static const struct v4l2_ctrl_config vim2m_ctrl_trans_time_msec = {
+ .ops = &vim2m_ctrl_ops,
.id = V4L2_CID_TRANS_TIME_MSEC,
.name = "Transaction Time (msec)",
.type = V4L2_CTRL_TYPE_INTEGER,
.step = 1,
};
-static const struct v4l2_ctrl_config m2mtest_ctrl_trans_num_bufs = {
- .ops = &m2mtest_ctrl_ops,
+static const struct v4l2_ctrl_config vim2m_ctrl_trans_num_bufs = {
+ .ops = &vim2m_ctrl_ops,
.id = V4L2_CID_TRANS_NUM_BUFS,
.name = "Buffers Per Transaction",
.type = V4L2_CTRL_TYPE_INTEGER,
/*
* File operations
*/
-static int m2mtest_open(struct file *file)
+static int vim2m_open(struct file *file)
{
- struct m2mtest_dev *dev = video_drvdata(file);
- struct m2mtest_ctx *ctx = NULL;
+ struct vim2m_dev *dev = video_drvdata(file);
+ struct vim2m_ctx *ctx = NULL;
struct v4l2_ctrl_handler *hdl;
int rc = 0;
ctx->dev = dev;
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);
+ v4l2_ctrl_new_std(hdl, &vim2m_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(hdl, &vim2m_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_custom(hdl, &vim2m_ctrl_trans_time_msec, NULL);
+ v4l2_ctrl_new_custom(hdl, &vim2m_ctrl_trans_num_bufs, NULL);
if (hdl->error) {
rc = hdl->error;
v4l2_ctrl_handler_free(hdl);
return rc;
}
-static int m2mtest_release(struct file *file)
+static int vim2m_release(struct file *file)
{
- struct m2mtest_dev *dev = video_drvdata(file);
- struct m2mtest_ctx *ctx = file2ctx(file);
+ struct vim2m_dev *dev = video_drvdata(file);
+ struct vim2m_ctx *ctx = file2ctx(file);
dprintk(dev, "Releasing instance %p\n", ctx);
return 0;
}
-static const struct v4l2_file_operations m2mtest_fops = {
+static const struct v4l2_file_operations vim2m_fops = {
.owner = THIS_MODULE,
- .open = m2mtest_open,
- .release = m2mtest_release,
+ .open = vim2m_open,
+ .release = vim2m_release,
.poll = v4l2_m2m_fop_poll,
.unlocked_ioctl = video_ioctl2,
.mmap = v4l2_m2m_fop_mmap,
};
-static struct video_device m2mtest_videodev = {
+static struct video_device vim2m_videodev = {
.name = MEM2MEM_NAME,
.vfl_dir = VFL_DIR_M2M,
- .fops = &m2mtest_fops,
- .ioctl_ops = &m2mtest_ioctl_ops,
+ .fops = &vim2m_fops,
+ .ioctl_ops = &vim2m_ioctl_ops,
.minor = -1,
.release = video_device_release,
};
.job_abort = job_abort,
};
-static int m2mtest_probe(struct platform_device *pdev)
+static int vim2m_probe(struct platform_device *pdev)
{
- struct m2mtest_dev *dev;
+ struct vim2m_dev *dev;
struct video_device *vfd;
int ret;
goto unreg_dev;
}
- *vfd = m2mtest_videodev;
+ *vfd = vim2m_videodev;
vfd->lock = &dev->dev_mutex;
vfd->v4l2_dev = &dev->v4l2_dev;
}
video_set_drvdata(vfd, dev);
- snprintf(vfd->name, sizeof(vfd->name), "%s", m2mtest_videodev.name);
+ snprintf(vfd->name, sizeof(vfd->name), "%s", vim2m_videodev.name);
dev->vfd = vfd;
v4l2_info(&dev->v4l2_dev,
"Device registered as /dev/video%d\n", vfd->num);
return ret;
}
-static int m2mtest_remove(struct platform_device *pdev)
+static int vim2m_remove(struct platform_device *pdev)
{
- struct m2mtest_dev *dev = platform_get_drvdata(pdev);
+ struct vim2m_dev *dev = platform_get_drvdata(pdev);
- v4l2_info(&dev->v4l2_dev, "Removing " MEM2MEM_TEST_MODULE_NAME);
+ v4l2_info(&dev->v4l2_dev, "Removing " MEM2MEM_NAME);
v4l2_m2m_release(dev->m2m_dev);
del_timer_sync(&dev->timer);
video_unregister_device(dev->vfd);
return 0;
}
-static struct platform_driver m2mtest_pdrv = {
- .probe = m2mtest_probe,
- .remove = m2mtest_remove,
+static struct platform_driver vim2m_pdrv = {
+ .probe = vim2m_probe,
+ .remove = vim2m_remove,
.driver = {
.name = MEM2MEM_NAME,
.owner = THIS_MODULE,
},
};
-static void __exit m2mtest_exit(void)
+static void __exit vim2m_exit(void)
{
- platform_driver_unregister(&m2mtest_pdrv);
- platform_device_unregister(&m2mtest_pdev);
+ platform_driver_unregister(&vim2m_pdrv);
+ platform_device_unregister(&vim2m_pdev);
}
-static int __init m2mtest_init(void)
+static int __init vim2m_init(void)
{
int ret;
- ret = platform_device_register(&m2mtest_pdev);
+ ret = platform_device_register(&vim2m_pdev);
if (ret)
return ret;
- ret = platform_driver_register(&m2mtest_pdrv);
+ ret = platform_driver_register(&vim2m_pdrv);
if (ret)
- platform_device_unregister(&m2mtest_pdev);
+ platform_device_unregister(&vim2m_pdev);
return 0;
}
-module_init(m2mtest_init);
-module_exit(m2mtest_exit);
+module_init(vim2m_init);
+module_exit(vim2m_exit);
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