Subversion Repositories shark

#ifndef __SAA7146_VV__

#define __SAA7146_VV__

#include <linux/videodev2.h>

#include <drivers/saa7146.h>

#include <drivers/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;

};

#define FORMAT_BYTE_SWAP        0x1

#define FORMAT_IS_PLANAR        0x2

struct saa7146_format {

        char    *name;

        u32     pixelformat;

        u32     trans;

        u8      depth;

        u8      flags;

};

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;

        unsigned int resources; /* resource management for device open */

};

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 */

        unsigned int resources; /* resource management for device */

};

#define SAA7146_EXCLUSIVE       0x1

#define SAA7146_BEFORE          0x2

#define SAA7146_AFTER           0x4

struct saa7146_extension_ioctls

{

        unsigned int    cmd;

        int             flags; 

};

/* flags */

#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 *);

        int(*open)(struct saa7146_dev *, struct file *);

        void (*release)(struct saa7146_dev *, struct file *);

        void (*irq_done)(struct saa7146_dev *, unsigned long status);

        ssize_t (*read)(struct file *, char *, size_t, loff_t *);

};

/* 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 */

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);

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;

/* resource management functions */

int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit);

int saa7146_res_check(struct saa7146_fh *fh, unsigned int bit);

int saa7146_res_locked(struct saa7146_dev *dev, unsigned int bit);

void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits);

#define RESOURCE_DMA1_HPS       0x1

#define RESOURCE_DMA2_CLP       0x2

#define RESOURCE_DMA3_BRS       0x4

/* 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