Go to most recent revision |
Blame |
Compare with Previous |
Last modification |
View Log
| RSS feed
#ifndef __SAA7146_VV__
#define __SAA7146_VV__
#include <linux/videodev2.h>
#include <media/saa7146.h>
#include <media/video-buf.h>
#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;
};
struct saa7146_format {
char *name;
int pixelformat;
u32 trans;
u8 depth;
int 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 v_calc; /* number of vertical active lines */
int h_offset; /* horizontal offset of processing window */
int h_pixels; /* number of horizontal pixels to process */
int h_calc; /* number of horizontal active pixels */
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 {
struct saa7146_dev *dev;
/* if this is a vbi or capture open */
enum v4l2_buf_type type;
/* video overlay */
struct saa7146_overlay ov;
/* video capture */
struct videobuf_queue video_q;
struct v4l2_pix_format video_fmt;
/* vbi capture */
struct videobuf_queue vbi_q;
struct v4l2_vbi_format vbi_fmt;
struct timer_list vbi_read_timeout;
};
struct saa7146_vv
{
int vbi_minor;
/* vbi capture */
struct saa7146_dmaqueue vbi_q;
/* vbi workaround interrupt queue */
wait_queue_head_t vbi_wq;
int vbi_fieldcount;
struct saa7146_fh *vbi_streaming;
int video_minor;
/* video overlay */
struct v4l2_framebuffer ov_fb;
struct saa7146_format *ov_fmt;
struct saa7146_overlay *ov_data;
/* video capture */
struct saa7146_dmaqueue video_q;
struct saa7146_fh *streaming;
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 */
};
#define SAA7146_EXCLUSIVE 0x1
#define SAA7146_BEFORE 0x2
#define SAA7146_AFTER 0x4
struct saa7146_extension_ioctls
{
unsigned int cmd;
int flags;
};
/* flags */
#define SAA7146_EXT_SWAP_ODD_EVEN 0x1 /* needs odd/even fields swapped */
#define SAA7146_USE_PORT_B_FOR_VBI 0x2 /* use input port b for vbi hardware bug workaround */
struct saa7146_ext_vv
{
/* informations 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 *);
struct saa7146_extension_ioctls *ioctls;
int (*ioctl)(struct saa7146_fh*, unsigned int cmd, void *arg);
};
struct saa7146_use_ops {
void (*init)(struct saa7146_dev *, struct saa7146_vv *);
void(*open)(struct saa7146_dev *, struct saa7146_fh *);
void (*release)(struct saa7146_dev *, struct saa7146_fh *,struct file *);
void (*irq_done)(struct saa7146_dev *, unsigned long status);
ssize_t (*read)(struct file *, char *, size_t, loff_t *);
int (*capture_begin)(struct saa7146_fh *);
int (*capture_end)(struct saa7146_fh *);
};
/* from saa7146_fops.c */
int saa7146_register_device(struct video_device *vid, struct saa7146_dev* dev, char *name, int type);
int saa7146_unregister_device(struct video_device *vid, struct saa7146_dev* dev);
void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int state);
void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q,int vbi);
int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, struct saa7146_buf *buf);
void saa7146_buffer_timeout(unsigned long data);
void saa7146_dma_free(struct saa7146_dev *dev,struct saa7146_buf *buf);
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 */
void saa7146_set_overlay(struct saa7146_dev *dev, struct saa7146_fh *fh, int v);
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);
void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data);
/* from saa7146_video.c */
extern struct saa7146_use_ops saa7146_video_uops;
int saa7146_start_preview(struct saa7146_fh *fh);
int saa7146_stop_preview(struct saa7146_fh *fh);
/* from saa7146_vbi.c */
extern struct saa7146_use_ops saa7146_vbi_uops;
/* saa7146 source inputs */
#define SAA7146_HPS_SOURCE_PORT_A 0x00
#define SAA7146_HPS_SOURCE_PORT_B 0x01
#define SAA7146_HPS_SOURCE_YPB_CPA 0x02
#define SAA7146_HPS_SOURCE_YPA_CPB 0x03
/* sync inputs */
#define SAA7146_HPS_SYNC_PORT_A 0x00
#define SAA7146_HPS_SYNC_PORT_B 0x01
/* some memory sizes */
#define SAA7146_CLIPPING_MEM (14*PAGE_SIZE)
/* some defines for the various clipping-modes */
#define SAA7146_CLIPPING_RECT 0x4
#define SAA7146_CLIPPING_RECT_INVERTED 0x5
#define SAA7146_CLIPPING_MASK 0x6
#define SAA7146_CLIPPING_MASK_INVERTED 0x7
/* output formats: each entry holds four informations */
#define RGB08_COMPOSED 0x0217 /* composed is used in the sense of "not-planar" */
/* this means: planar?=0, yuv2rgb-conversation-mode=2, dither=yes(=1), format-mode = 7 */
#define RGB15_COMPOSED 0x0213
#define RGB16_COMPOSED 0x0210
#define RGB24_COMPOSED 0x0201
#define RGB32_COMPOSED 0x0202
#define Y8 0x0006
#define YUV411_COMPOSED 0x0003
#define YUV422_COMPOSED 0x0000
/* this means: planar?=1, yuv2rgb-conversion-mode=0, dither=no(=0), format-mode = b */
#define YUV411_DECOMPOSED 0x100b
#define YUV422_DECOMPOSED 0x1009
#define YUV420_DECOMPOSED 0x100a
#define IS_PLANAR(x) (x & 0xf000)
/* misc defines */
#define SAA7146_NO_SWAP (0x0)
#define SAA7146_TWO_BYTE_SWAP (0x1)
#define SAA7146_FOUR_BYTE_SWAP (0x2)
#endif