diff options
Diffstat (limited to 'drivers/media/test-drivers/vimc/vimc-capture.c')
-rw-r--r-- | drivers/media/test-drivers/vimc/vimc-capture.c | 270 |
1 files changed, 135 insertions, 135 deletions
diff --git a/drivers/media/test-drivers/vimc/vimc-capture.c b/drivers/media/test-drivers/vimc/vimc-capture.c index d1e2d0739c00..6c437802f91f 100644 --- a/drivers/media/test-drivers/vimc/vimc-capture.c +++ b/drivers/media/test-drivers/vimc/vimc-capture.c @@ -13,7 +13,7 @@ #include "vimc-common.h" #include "vimc-streamer.h" -struct vimc_cap_device { +struct vimc_capture_device { struct vimc_ent_device ved; struct video_device vdev; struct v4l2_pix_format format; @@ -41,7 +41,7 @@ static const struct v4l2_pix_format fmt_default = { .colorspace = V4L2_COLORSPACE_SRGB, }; -struct vimc_cap_buffer { +struct vimc_capture_buffer { /* * struct vb2_v4l2_buffer must be the first element * the videobuf2 framework will allocate this struct based on @@ -52,7 +52,7 @@ struct vimc_cap_buffer { struct list_head list; }; -static int vimc_cap_querycap(struct file *file, void *priv, +static int vimc_capture_querycap(struct file *file, void *priv, struct v4l2_capability *cap) { strscpy(cap->driver, VIMC_PDEV_NAME, sizeof(cap->driver)); @@ -63,26 +63,26 @@ static int vimc_cap_querycap(struct file *file, void *priv, return 0; } -static void vimc_cap_get_format(struct vimc_ent_device *ved, +static void vimc_capture_get_format(struct vimc_ent_device *ved, struct v4l2_pix_format *fmt) { - struct vimc_cap_device *vcap = container_of(ved, struct vimc_cap_device, + struct vimc_capture_device *vcapture = container_of(ved, struct vimc_capture_device, ved); - *fmt = vcap->format; + *fmt = vcapture->format; } -static int vimc_cap_g_fmt_vid_cap(struct file *file, void *priv, +static int vimc_capture_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { - struct vimc_cap_device *vcap = video_drvdata(file); + struct vimc_capture_device *vcapture = video_drvdata(file); - f->fmt.pix = vcap->format; + f->fmt.pix = vcapture->format; return 0; } -static int vimc_cap_try_fmt_vid_cap(struct file *file, void *priv, +static int vimc_capture_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct v4l2_pix_format *format = &f->fmt.pix; @@ -114,40 +114,40 @@ static int vimc_cap_try_fmt_vid_cap(struct file *file, void *priv, return 0; } -static int vimc_cap_s_fmt_vid_cap(struct file *file, void *priv, +static int vimc_capture_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { - struct vimc_cap_device *vcap = video_drvdata(file); + struct vimc_capture_device *vcapture = video_drvdata(file); int ret; /* Do not change the format while stream is on */ - if (vb2_is_busy(&vcap->queue)) + if (vb2_is_busy(&vcapture->queue)) return -EBUSY; - ret = vimc_cap_try_fmt_vid_cap(file, priv, f); + ret = vimc_capture_try_fmt_vid_cap(file, priv, f); if (ret) return ret; - dev_dbg(vcap->ved.dev, "%s: format update: " + dev_dbg(vcapture->ved.dev, "%s: format update: " "old:%dx%d (0x%x, %d, %d, %d, %d) " - "new:%dx%d (0x%x, %d, %d, %d, %d)\n", vcap->vdev.name, + "new:%dx%d (0x%x, %d, %d, %d, %d)\n", vcapture->vdev.name, /* old */ - vcap->format.width, vcap->format.height, - vcap->format.pixelformat, vcap->format.colorspace, - vcap->format.quantization, vcap->format.xfer_func, - vcap->format.ycbcr_enc, + vcapture->format.width, vcapture->format.height, + vcapture->format.pixelformat, vcapture->format.colorspace, + vcapture->format.quantization, vcapture->format.xfer_func, + vcapture->format.ycbcr_enc, /* new */ f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.pixelformat, f->fmt.pix.colorspace, f->fmt.pix.quantization, f->fmt.pix.xfer_func, f->fmt.pix.ycbcr_enc); - vcap->format = f->fmt.pix; + vcapture->format = f->fmt.pix; return 0; } -static int vimc_cap_enum_fmt_vid_cap(struct file *file, void *priv, +static int vimc_capture_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { const struct vimc_pix_map *vpix; @@ -169,7 +169,7 @@ static int vimc_cap_enum_fmt_vid_cap(struct file *file, void *priv, return 0; } -static int vimc_cap_enum_framesizes(struct file *file, void *fh, +static int vimc_capture_enum_framesizes(struct file *file, void *fh, struct v4l2_frmsizeenum *fsize) { const struct vimc_pix_map *vpix; @@ -193,7 +193,7 @@ static int vimc_cap_enum_framesizes(struct file *file, void *fh, return 0; } -static const struct v4l2_file_operations vimc_cap_fops = { +static const struct v4l2_file_operations vimc_capture_fops = { .owner = THIS_MODULE, .open = v4l2_fh_open, .release = vb2_fop_release, @@ -203,14 +203,14 @@ static const struct v4l2_file_operations vimc_cap_fops = { .mmap = vb2_fop_mmap, }; -static const struct v4l2_ioctl_ops vimc_cap_ioctl_ops = { - .vidioc_querycap = vimc_cap_querycap, +static const struct v4l2_ioctl_ops vimc_capture_ioctl_ops = { + .vidioc_querycap = vimc_capture_querycap, - .vidioc_g_fmt_vid_cap = vimc_cap_g_fmt_vid_cap, - .vidioc_s_fmt_vid_cap = vimc_cap_s_fmt_vid_cap, - .vidioc_try_fmt_vid_cap = vimc_cap_try_fmt_vid_cap, - .vidioc_enum_fmt_vid_cap = vimc_cap_enum_fmt_vid_cap, - .vidioc_enum_framesizes = vimc_cap_enum_framesizes, + .vidioc_g_fmt_vid_cap = vimc_capture_g_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = vimc_capture_s_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = vimc_capture_try_fmt_vid_cap, + .vidioc_enum_fmt_vid_cap = vimc_capture_enum_fmt_vid_cap, + .vidioc_enum_framesizes = vimc_capture_enum_framesizes, .vidioc_reqbufs = vb2_ioctl_reqbufs, .vidioc_create_bufs = vb2_ioctl_create_bufs, @@ -223,40 +223,40 @@ static const struct v4l2_ioctl_ops vimc_cap_ioctl_ops = { .vidioc_streamoff = vb2_ioctl_streamoff, }; -static void vimc_cap_return_all_buffers(struct vimc_cap_device *vcap, +static void vimc_capture_return_all_buffers(struct vimc_capture_device *vcapture, enum vb2_buffer_state state) { - struct vimc_cap_buffer *vbuf, *node; + struct vimc_capture_buffer *vbuf, *node; - spin_lock(&vcap->qlock); + spin_lock(&vcapture->qlock); - list_for_each_entry_safe(vbuf, node, &vcap->buf_list, list) { + list_for_each_entry_safe(vbuf, node, &vcapture->buf_list, list) { list_del(&vbuf->list); vb2_buffer_done(&vbuf->vb2.vb2_buf, state); } - spin_unlock(&vcap->qlock); + spin_unlock(&vcapture->qlock); } -static int vimc_cap_start_streaming(struct vb2_queue *vq, unsigned int count) +static int vimc_capture_start_streaming(struct vb2_queue *vq, unsigned int count) { - struct vimc_cap_device *vcap = vb2_get_drv_priv(vq); - struct media_entity *entity = &vcap->vdev.entity; + struct vimc_capture_device *vcapture = vb2_get_drv_priv(vq); + struct media_entity *entity = &vcapture->vdev.entity; int ret; - vcap->sequence = 0; + vcapture->sequence = 0; /* Start the media pipeline */ - ret = media_pipeline_start(entity, &vcap->stream.pipe); + ret = media_pipeline_start(entity, &vcapture->stream.pipe); if (ret) { - vimc_cap_return_all_buffers(vcap, VB2_BUF_STATE_QUEUED); + vimc_capture_return_all_buffers(vcapture, VB2_BUF_STATE_QUEUED); return ret; } - ret = vimc_streamer_s_stream(&vcap->stream, &vcap->ved, 1); + ret = vimc_streamer_s_stream(&vcapture->stream, &vcapture->ved, 1); if (ret) { media_pipeline_stop(entity); - vimc_cap_return_all_buffers(vcap, VB2_BUF_STATE_QUEUED); + vimc_capture_return_all_buffers(vcapture, VB2_BUF_STATE_QUEUED); return ret; } @@ -267,65 +267,65 @@ static int vimc_cap_start_streaming(struct vb2_queue *vq, unsigned int count) * Stop the stream engine. Any remaining buffers in the stream queue are * dequeued and passed on to the vb2 framework marked as STATE_ERROR. */ -static void vimc_cap_stop_streaming(struct vb2_queue *vq) +static void vimc_capture_stop_streaming(struct vb2_queue *vq) { - struct vimc_cap_device *vcap = vb2_get_drv_priv(vq); + struct vimc_capture_device *vcapture = vb2_get_drv_priv(vq); - vimc_streamer_s_stream(&vcap->stream, &vcap->ved, 0); + vimc_streamer_s_stream(&vcapture->stream, &vcapture->ved, 0); /* Stop the media pipeline */ - media_pipeline_stop(&vcap->vdev.entity); + media_pipeline_stop(&vcapture->vdev.entity); /* Release all active buffers */ - vimc_cap_return_all_buffers(vcap, VB2_BUF_STATE_ERROR); + vimc_capture_return_all_buffers(vcapture, VB2_BUF_STATE_ERROR); } -static void vimc_cap_buf_queue(struct vb2_buffer *vb2_buf) +static void vimc_capture_buf_queue(struct vb2_buffer *vb2_buf) { - struct vimc_cap_device *vcap = vb2_get_drv_priv(vb2_buf->vb2_queue); - struct vimc_cap_buffer *buf = container_of(vb2_buf, - struct vimc_cap_buffer, + struct vimc_capture_device *vcapture = vb2_get_drv_priv(vb2_buf->vb2_queue); + struct vimc_capture_buffer *buf = container_of(vb2_buf, + struct vimc_capture_buffer, vb2.vb2_buf); - spin_lock(&vcap->qlock); - list_add_tail(&buf->list, &vcap->buf_list); - spin_unlock(&vcap->qlock); + spin_lock(&vcapture->qlock); + list_add_tail(&buf->list, &vcapture->buf_list); + spin_unlock(&vcapture->qlock); } -static int vimc_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, +static int vimc_capture_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, unsigned int *nplanes, unsigned int sizes[], struct device *alloc_devs[]) { - struct vimc_cap_device *vcap = vb2_get_drv_priv(vq); + struct vimc_capture_device *vcapture = vb2_get_drv_priv(vq); if (*nplanes) - return sizes[0] < vcap->format.sizeimage ? -EINVAL : 0; + return sizes[0] < vcapture->format.sizeimage ? -EINVAL : 0; /* We don't support multiplanes for now */ *nplanes = 1; - sizes[0] = vcap->format.sizeimage; + sizes[0] = vcapture->format.sizeimage; return 0; } -static int vimc_cap_buffer_prepare(struct vb2_buffer *vb) +static int vimc_capture_buffer_prepare(struct vb2_buffer *vb) { - struct vimc_cap_device *vcap = vb2_get_drv_priv(vb->vb2_queue); - unsigned long size = vcap->format.sizeimage; + struct vimc_capture_device *vcapture = vb2_get_drv_priv(vb->vb2_queue); + unsigned long size = vcapture->format.sizeimage; if (vb2_plane_size(vb, 0) < size) { - dev_err(vcap->ved.dev, "%s: buffer too small (%lu < %lu)\n", - vcap->vdev.name, vb2_plane_size(vb, 0), size); + dev_err(vcapture->ved.dev, "%s: buffer too small (%lu < %lu)\n", + vcapture->vdev.name, vb2_plane_size(vb, 0), size); return -EINVAL; } return 0; } -static const struct vb2_ops vimc_cap_qops = { - .start_streaming = vimc_cap_start_streaming, - .stop_streaming = vimc_cap_stop_streaming, - .buf_queue = vimc_cap_buf_queue, - .queue_setup = vimc_cap_queue_setup, - .buf_prepare = vimc_cap_buffer_prepare, +static const struct vb2_ops vimc_capture_qops = { + .start_streaming = vimc_capture_start_streaming, + .stop_streaming = vimc_capture_stop_streaming, + .buf_queue = vimc_capture_buf_queue, + .queue_setup = vimc_capture_queue_setup, + .buf_prepare = vimc_capture_buffer_prepare, /* * Since q->lock is set we can use the standard * vb2_ops_wait_prepare/finish helper functions. @@ -334,107 +334,107 @@ static const struct vb2_ops vimc_cap_qops = { .wait_finish = vb2_ops_wait_finish, }; -static const struct media_entity_operations vimc_cap_mops = { +static const struct media_entity_operations vimc_capture_mops = { .link_validate = vimc_vdev_link_validate, }; -static void vimc_cap_release(struct vimc_ent_device *ved) +static void vimc_capture_release(struct vimc_ent_device *ved) { - struct vimc_cap_device *vcap = - container_of(ved, struct vimc_cap_device, ved); + struct vimc_capture_device *vcapture = + container_of(ved, struct vimc_capture_device, ved); - media_entity_cleanup(vcap->ved.ent); - kfree(vcap); + media_entity_cleanup(vcapture->ved.ent); + kfree(vcapture); } -static void vimc_cap_unregister(struct vimc_ent_device *ved) +static void vimc_capture_unregister(struct vimc_ent_device *ved) { - struct vimc_cap_device *vcap = - container_of(ved, struct vimc_cap_device, ved); + struct vimc_capture_device *vcapture = + container_of(ved, struct vimc_capture_device, ved); - vb2_video_unregister_device(&vcap->vdev); + vb2_video_unregister_device(&vcapture->vdev); } -static void *vimc_cap_process_frame(struct vimc_ent_device *ved, +static void *vimc_capture_process_frame(struct vimc_ent_device *ved, const void *frame) { - struct vimc_cap_device *vcap = container_of(ved, struct vimc_cap_device, + struct vimc_capture_device *vcapture = container_of(ved, struct vimc_capture_device, ved); - struct vimc_cap_buffer *vimc_buf; + struct vimc_capture_buffer *vimc_buf; void *vbuf; - spin_lock(&vcap->qlock); + spin_lock(&vcapture->qlock); /* Get the first entry of the list */ - vimc_buf = list_first_entry_or_null(&vcap->buf_list, + vimc_buf = list_first_entry_or_null(&vcapture->buf_list, typeof(*vimc_buf), list); if (!vimc_buf) { - spin_unlock(&vcap->qlock); + spin_unlock(&vcapture->qlock); return ERR_PTR(-EAGAIN); } /* Remove this entry from the list */ list_del(&vimc_buf->list); - spin_unlock(&vcap->qlock); + spin_unlock(&vcapture->qlock); /* Fill the buffer */ vimc_buf->vb2.vb2_buf.timestamp = ktime_get_ns(); - vimc_buf->vb2.sequence = vcap->sequence++; - vimc_buf->vb2.field = vcap->format.field; + vimc_buf->vb2.sequence = vcapture->sequence++; + vimc_buf->vb2.field = vcapture->format.field; vbuf = vb2_plane_vaddr(&vimc_buf->vb2.vb2_buf, 0); - memcpy(vbuf, frame, vcap->format.sizeimage); + memcpy(vbuf, frame, vcapture->format.sizeimage); /* Set it as ready */ vb2_set_plane_payload(&vimc_buf->vb2.vb2_buf, 0, - vcap->format.sizeimage); + vcapture->format.sizeimage); vb2_buffer_done(&vimc_buf->vb2.vb2_buf, VB2_BUF_STATE_DONE); return NULL; } -static struct vimc_ent_device *vimc_cap_add(struct vimc_device *vimc, +static struct vimc_ent_device *vimc_capture_add(struct vimc_device *vimc, const char *vcfg_name) { struct v4l2_device *v4l2_dev = &vimc->v4l2_dev; const struct vimc_pix_map *vpix; - struct vimc_cap_device *vcap; + struct vimc_capture_device *vcapture; struct video_device *vdev; struct vb2_queue *q; int ret; - /* Allocate the vimc_cap_device struct */ - vcap = kzalloc(sizeof(*vcap), GFP_KERNEL); - if (!vcap) + /* Allocate the vimc_capture_device struct */ + vcapture = kzalloc(sizeof(*vcapture), GFP_KERNEL); + if (!vcapture) return ERR_PTR(-ENOMEM); /* Initialize the media entity */ - vcap->vdev.entity.name = vcfg_name; - vcap->vdev.entity.function = MEDIA_ENT_F_IO_V4L; - vcap->pad.flags = MEDIA_PAD_FL_SINK; - ret = media_entity_pads_init(&vcap->vdev.entity, - 1, &vcap->pad); + vcapture->vdev.entity.name = vcfg_name; + vcapture->vdev.entity.function = MEDIA_ENT_F_IO_V4L; + vcapture->pad.flags = MEDIA_PAD_FL_SINK; + ret = media_entity_pads_init(&vcapture->vdev.entity, + 1, &vcapture->pad); if (ret) - goto err_free_vcap; + goto err_free_vcapture; /* Initialize the lock */ - mutex_init(&vcap->lock); + mutex_init(&vcapture->lock); /* Initialize the vb2 queue */ - q = &vcap->queue; + q = &vcapture->queue; q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; q->io_modes = VB2_MMAP | VB2_DMABUF; if (vimc_allocator == VIMC_ALLOCATOR_VMALLOC) q->io_modes |= VB2_USERPTR; - q->drv_priv = vcap; - q->buf_struct_size = sizeof(struct vimc_cap_buffer); - q->ops = &vimc_cap_qops; + q->drv_priv = vcapture; + q->buf_struct_size = sizeof(struct vimc_capture_buffer); + q->ops = &vimc_capture_qops; q->mem_ops = vimc_allocator == VIMC_ALLOCATOR_DMA_CONTIG ? &vb2_dma_contig_memops : &vb2_vmalloc_memops; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; q->min_buffers_needed = 2; - q->lock = &vcap->lock; + q->lock = &vcapture->lock; q->dev = v4l2_dev->dev; ret = vb2_queue_init(q); @@ -445,57 +445,57 @@ static struct vimc_ent_device *vimc_cap_add(struct vimc_device *vimc, } /* Initialize buffer list and its lock */ - INIT_LIST_HEAD(&vcap->buf_list); - spin_lock_init(&vcap->qlock); + INIT_LIST_HEAD(&vcapture->buf_list); + spin_lock_init(&vcapture->qlock); /* Set default frame format */ - vcap->format = fmt_default; - vpix = vimc_pix_map_by_pixelformat(vcap->format.pixelformat); - vcap->format.bytesperline = vcap->format.width * vpix->bpp; - vcap->format.sizeimage = vcap->format.bytesperline * - vcap->format.height; + vcapture->format = fmt_default; + vpix = vimc_pix_map_by_pixelformat(vcapture->format.pixelformat); + vcapture->format.bytesperline = vcapture->format.width * vpix->bpp; + vcapture->format.sizeimage = vcapture->format.bytesperline * + vcapture->format.height; /* Fill the vimc_ent_device struct */ - vcap->ved.ent = &vcap->vdev.entity; - vcap->ved.process_frame = vimc_cap_process_frame; - vcap->ved.vdev_get_format = vimc_cap_get_format; - vcap->ved.dev = vimc->mdev.dev; + vcapture->ved.ent = &vcapture->vdev.entity; + vcapture->ved.process_frame = vimc_capture_process_frame; + vcapture->ved.vdev_get_format = vimc_capture_get_format; + vcapture->ved.dev = vimc->mdev.dev; /* Initialize the video_device struct */ - vdev = &vcap->vdev; + vdev = &vcapture->vdev; vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | V4L2_CAP_IO_MC; - vdev->entity.ops = &vimc_cap_mops; + vdev->entity.ops = &vimc_capture_mops; vdev->release = video_device_release_empty; - vdev->fops = &vimc_cap_fops; - vdev->ioctl_ops = &vimc_cap_ioctl_ops; - vdev->lock = &vcap->lock; + vdev->fops = &vimc_capture_fops; + vdev->ioctl_ops = &vimc_capture_ioctl_ops; + vdev->lock = &vcapture->lock; vdev->queue = q; vdev->v4l2_dev = v4l2_dev; vdev->vfl_dir = VFL_DIR_RX; strscpy(vdev->name, vcfg_name, sizeof(vdev->name)); - video_set_drvdata(vdev, &vcap->ved); + video_set_drvdata(vdev, &vcapture->ved); /* Register the video_device with the v4l2 and the media framework */ ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1); if (ret) { dev_err(vimc->mdev.dev, "%s: video register failed (err=%d)\n", - vcap->vdev.name, ret); + vcapture->vdev.name, ret); goto err_clean_m_ent; } - return &vcap->ved; + return &vcapture->ved; err_clean_m_ent: - media_entity_cleanup(&vcap->vdev.entity); -err_free_vcap: - kfree(vcap); + media_entity_cleanup(&vcapture->vdev.entity); +err_free_vcapture: + kfree(vcapture); return ERR_PTR(ret); } -struct vimc_ent_type vimc_cap_type = { - .add = vimc_cap_add, - .unregister = vimc_cap_unregister, - .release = vimc_cap_release +struct vimc_ent_type vimc_capture_type = { + .add = vimc_capture_add, + .unregister = vimc_capture_unregister, + .release = vimc_capture_release }; |