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authorHans Verkuil <hverkuil-cisco@xs4all.nl>2023-03-02 13:57:23 +0100
committerMauro Carvalho Chehab <mchehab@kernel.org>2023-03-20 00:27:04 +0100
commit7777694f80669cb2cdb467fc0fadf3376fbf836d (patch)
treec5e519b2dd3625fb22d8b2e0924f4071cadec16b /include/media
parentmedia: common: btcx-risc.h: drop obsolete header (diff)
downloadlinux-7777694f80669cb2cdb467fc0fadf3376fbf836d.tar.xz
linux-7777694f80669cb2cdb467fc0fadf3376fbf836d.zip
media: saa7146: drop overlay support
Destructive overlay support (i.e. where the video frame is DMA-ed straight into a framebuffer) is effectively dead. It was a necessary evil in the early days when computers were not fast enough to copy SDTV video frames around, but today that's no longer a problem. It requires access to the framebuffer memory, which is a bad idea and very hard to do safely. In addition, in drm it is today almost impossible to get hold of the framebuffer address. So drop support for this. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'include/media')
-rw-r--r--include/media/drv-intf/saa7146_vv.h21
1 files changed, 0 insertions, 21 deletions
diff --git a/include/media/drv-intf/saa7146_vv.h b/include/media/drv-intf/saa7146_vv.h
index 635805fb35e8..932961e8f5ab 100644
--- a/include/media/drv-intf/saa7146_vv.h
+++ b/include/media/drv-intf/saa7146_vv.h
@@ -76,13 +76,6 @@ struct saa7146_dmaqueue {
struct timer_list timeout;
};
-struct saa7146_overlay {
- struct saa7146_fh *fh;
- struct v4l2_window win;
- struct v4l2_clip clips[16];
- int nclips;
-};
-
/* per open data */
struct saa7146_fh {
/* Must be the first field! */
@@ -98,7 +91,6 @@ struct saa7146_fh {
unsigned int resources; /* resource management for device open */
};
-#define STATUS_OVERLAY 0x01
#define STATUS_CAPTURE 0x02
struct saa7146_vv
@@ -116,12 +108,6 @@ struct saa7146_vv
int video_status;
struct saa7146_fh *video_fh;
- /* video overlay */
- struct saa7146_overlay ov;
- struct v4l2_framebuffer ov_fb;
- struct saa7146_format *ov_fmt;
- struct saa7146_fh *ov_suspend;
-
/* video capture */
struct saa7146_dmaqueue video_dmaq;
struct v4l2_pix_format video_fmt;
@@ -140,8 +126,6 @@ struct saa7146_vv
int current_hps_source;
int current_hps_sync;
- struct saa7146_dma d_clipping; /* pointer to clipping memory */
-
unsigned int resources; /* resource management for device */
};
@@ -192,9 +176,6 @@ int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv);
int saa7146_vv_release(struct saa7146_dev* dev);
/* from saa7146_hlp.c */
-int saa7146_enable_overlay(struct saa7146_fh *fh);
-void saa7146_disable_overlay(struct saa7146_fh *fh);
-
void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next);
void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) ;
void saa7146_set_hps_source_and_sync(struct saa7146_dev *saa, int source, int sync);
@@ -204,8 +185,6 @@ void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data);
extern const struct v4l2_ioctl_ops saa7146_video_ioctl_ops;
extern const struct v4l2_ioctl_ops saa7146_vbi_ioctl_ops;
extern const struct saa7146_use_ops saa7146_video_uops;
-int saa7146_start_preview(struct saa7146_fh *fh);
-int saa7146_stop_preview(struct saa7146_fh *fh);
long saa7146_video_do_ioctl(struct file *file, unsigned int cmd, void *arg);
int saa7146_s_ctrl(struct v4l2_ctrl *ctrl);