01  u֙_I|+?/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __SAA7146_VV__ #define __SAA7146_VV__ #include #include #include #include #include #define MAX_SAA7146_CAPTURE_BUFFERS 32 /* arbitrary */ #define BUFFER_TIMEOUT (HZ/2) /* 0.5 seconds */ #define WRITE_RPS0(x) do { \ dev->d_rps0.cpu_addr[ count++ ] = cpu_to_le32(x); \ } while (0); #define WRITE_RPS1(x) do { \ dev->d_rps1.cpu_addr[ count++ ] = cpu_to_le32(x); \ } while (0); struct saa7146_video_dma { u32 base_odd; u32 base_even; u32 prot_addr; u32 pitch; u32 base_page; u32 num_line_byte; }; #define FORMAT_BYTE_SWAP 0x1 #define FORMAT_IS_PLANAR 0x2 struct saa7146_format { u32 pixelformat; u32 trans; u8 depth; u8 flags; u8 swap; }; struct saa7146_standard { char *name; v4l2_std_id id; int v_offset; /* number of lines of vertical offset before processing */ int v_field; /* number of lines in a field for HPS to process */ int h_offset; /* horizontal offset of processing window */ int h_pixels; /* number of horizontal pixels to process */ int v_max_out; int h_max_out; }; /* buffer for one video/vbi frame */ struct saa7146_buf { /* common v4l buffer stuff -- must be first */ struct videobuf_buffer vb; /* saa7146 specific */ struct v4l2_pix_format *fmt; int (*activate)(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next); /* page tables */ struct saa7146_pgtable pt[3]; }; struct saa7146_dmaqueue { struct saa7146_dev *dev; struct saa7146_buf *curr; struct list_head queue; 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! */ struct v4l2_fh fh; struct saa7146_dev *dev; /* video capture */ struct videobuf_queue video_q; /* vbi capture */ struct videobuf_queue vbi_q; unsigned int resources; /* resource management for device open */ }; #define STATUS_OVERLAY 0x01 #define STATUS_CAPTURE 0x02 struct saa7146_vv { /* vbi capture */ struct saa7146_dmaqueue vbi_dmaq; struct v4l2_vbi_format vbi_fmt; struct timer_list vbi_read_timeout; struct file *vbi_read_timeout_file; /* vbi workaround interrupt queue */ wait_queue_head_t vbi_wq; int vbi_fieldcount; struct saa7146_fh *vbi_streaming; 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; enum v4l2_field last_field; /* common: fixme? shouldn't this be in saa7146_fh? (this leads to a more complicated question: shall the driver store the different settings (for example S_INPUT) for every open and restore it appropriately, or should all settings be common for all opens? currently, we do the latter, like all other drivers do... */ struct saa7146_standard *standard; int vflip; int hflip; int current_hps_source; int current_hps_sync; struct saa7146_dma d_clipping; /* pointer to clipping memory */ unsigned int resources; /* resource management for device */ }; /* flags */ #define SAA7146_USE_PORT_B_FOR_VBI 0x2 /* use input port b for vbi hardware bug workaround */ struct saa7146_ext_vv { /* information about the video capabilities of the device */ int inputs; int audios; u32 capabilities; int flags; /* additionally supported transmission standards */ struct saa7146_standard *stds; int num_stds; int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *); /* the extension can override this */ struct v4l2_ioctl_ops vid_ops; struct v4l2_ioctl_ops vbi_ops; /* pointer to the saa7146 core ops */ const struct v4l2_ioctl_ops *core_ops; struct v4l2_file_operations vbi_fops; }; struct saa7146_use_ops { void (*