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434 giacomo 1
#ifndef __SAA7146_VV__
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#define __SAA7146_VV__
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#include <linux/videodev2.h>
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#include <drivers/saa7146.h>
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#include <drivers/video-buf.h>
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#define MAX_SAA7146_CAPTURE_BUFFERS     32      /* arbitrary */
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#define BUFFER_TIMEOUT     (HZ/2)  /* 0.5 seconds */
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#define WRITE_RPS0(x) do { \
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        dev->d_rps0.cpu_addr[ count++ ] = cpu_to_le32(x); \
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        } while (0);
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#define WRITE_RPS1(x) do { \
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        dev->d_rps1.cpu_addr[ count++ ] = cpu_to_le32(x); \
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        } while (0);
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struct  saa7146_video_dma {
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        u32 base_odd;
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        u32 base_even;
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        u32 prot_addr;
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        u32 pitch;
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        u32 base_page;
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        u32 num_line_byte;
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};
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#define FORMAT_BYTE_SWAP        0x1
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#define FORMAT_IS_PLANAR        0x2
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struct saa7146_format {
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        char    *name;
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        u32     pixelformat;
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        u32     trans;
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        u8      depth;
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        u8      flags;
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};
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struct saa7146_standard
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{
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        char          *name;
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        v4l2_std_id   id;
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        int v_offset;   /* number of lines of vertical offset before processing */
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        int v_field;    /* number of lines in a field for HPS to process */
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        int v_calc;     /* number of vertical active lines */
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        int h_offset;   /* horizontal offset of processing window */
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        int h_pixels;   /* number of horizontal pixels to process */
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        int h_calc;     /* number of horizontal active pixels */
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        int v_max_out;
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        int h_max_out;
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};
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/* buffer for one video/vbi frame */
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struct saa7146_buf {
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        /* common v4l buffer stuff -- must be first */
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        struct videobuf_buffer vb;
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        /* saa7146 specific */
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        struct v4l2_pix_format  *fmt;
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        int (*activate)(struct saa7146_dev *dev,
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                        struct saa7146_buf *buf,
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                        struct saa7146_buf *next);
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        /* page tables */
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        struct saa7146_pgtable  pt[3];
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};
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struct saa7146_dmaqueue {
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        struct saa7146_dev      *dev;
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        struct saa7146_buf      *curr;
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        struct list_head        queue;
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        struct timer_list       timeout;
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};
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struct saa7146_overlay {
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        struct saa7146_fh       *fh;
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        struct v4l2_window      win;
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        struct v4l2_clip        clips[16];
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        int                     nclips;
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};
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/* per open data */
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struct saa7146_fh {
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        struct saa7146_dev      *dev;
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        /* if this is a vbi or capture open */
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        enum v4l2_buf_type      type;
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        /* video overlay */
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        struct saa7146_overlay  ov;
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        /* video capture */
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        struct videobuf_queue   video_q;
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        struct v4l2_pix_format  video_fmt;
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        /* vbi capture */
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        struct videobuf_queue   vbi_q;
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        struct v4l2_vbi_format  vbi_fmt;
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        struct timer_list       vbi_read_timeout;
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        unsigned int resources; /* resource management for device open */
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};
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struct saa7146_vv
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{
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        int vbi_minor;
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        /* vbi capture */
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        struct saa7146_dmaqueue         vbi_q;
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        /* vbi workaround interrupt queue */
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        wait_queue_head_t               vbi_wq;
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        int                             vbi_fieldcount;
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        struct saa7146_fh               *vbi_streaming;
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        int video_minor;
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        /* video overlay */
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        struct v4l2_framebuffer         ov_fb;
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        struct saa7146_format           *ov_fmt;
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        struct saa7146_overlay          *ov_data;
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        /* video capture */
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        struct saa7146_dmaqueue         video_q;
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        struct saa7146_fh               *streaming;
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        enum v4l2_field                 last_field;
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        /* common: fixme? shouldn't this be in saa7146_fh?
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           (this leads to a more complicated question: shall the driver
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           store the different settings (for example S_INPUT) for every open
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           and restore it appropriately, or should all settings be common for
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           all opens? currently, we do the latter, like all other
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           drivers do... */
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        struct saa7146_standard *standard;
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        int     vflip;
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        int     hflip;
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        int     current_hps_source;
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        int     current_hps_sync;
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        struct saa7146_dma      d_clipping;     /* pointer to clipping memory */
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        unsigned int resources; /* resource management for device */
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};
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#define SAA7146_EXCLUSIVE       0x1
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#define SAA7146_BEFORE          0x2
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#define SAA7146_AFTER           0x4
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struct saa7146_extension_ioctls
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{
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        unsigned int    cmd;
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        int             flags; 
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};
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/* flags */
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#define SAA7146_USE_PORT_B_FOR_VBI      0x2     /* use input port b for vbi hardware bug workaround */
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struct saa7146_ext_vv
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{
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        /* informations about the video capabilities of the device */
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        int     inputs;                
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        int     audios;                
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        u32     capabilities;
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        int     flags;
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        /* additionally supported transmission standards */
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        struct saa7146_standard *stds;
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        int num_stds;
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        int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *);
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        struct saa7146_extension_ioctls *ioctls;
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        int (*ioctl)(struct saa7146_fh*, unsigned int cmd, void *arg);
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};
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struct saa7146_use_ops  {
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        void (*init)(struct saa7146_dev *, struct saa7146_vv *);
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        int(*open)(struct saa7146_dev *, struct file *);
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        void (*release)(struct saa7146_dev *, struct file *);
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        void (*irq_done)(struct saa7146_dev *, unsigned long status);
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        ssize_t (*read)(struct file *, char *, size_t, loff_t *);
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};
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/* from saa7146_fops.c */
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int saa7146_register_device(struct video_device *vid, struct saa7146_dev* dev, char *name, int type);
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int saa7146_unregister_device(struct video_device *vid, struct saa7146_dev* dev);
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void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int state);
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void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q,int vbi);
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int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, struct saa7146_buf *buf);
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void saa7146_buffer_timeout(unsigned long data);
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void saa7146_dma_free(struct saa7146_dev *dev,struct saa7146_buf *buf);
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int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv);
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int saa7146_vv_release(struct saa7146_dev* dev);
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/* from saa7146_hlp.c */
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int saa7146_enable_overlay(struct saa7146_fh *fh);
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void saa7146_disable_overlay(struct saa7146_fh *fh);
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void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next);
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void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) ;
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void saa7146_set_hps_source_and_sync(struct saa7146_dev *saa, int source, int sync);
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void saa7146_set_gpio(struct saa7146_dev *saa, u8 pin, u8 data);
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/* from saa7146_video.c */
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extern struct saa7146_use_ops saa7146_video_uops;
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int saa7146_start_preview(struct saa7146_fh *fh);
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int saa7146_stop_preview(struct saa7146_fh *fh);
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/* from saa7146_vbi.c */
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extern struct saa7146_use_ops saa7146_vbi_uops;
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/* resource management functions */
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int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit);
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int saa7146_res_check(struct saa7146_fh *fh, unsigned int bit);
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int saa7146_res_locked(struct saa7146_dev *dev, unsigned int bit);
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void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits);
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#define RESOURCE_DMA1_HPS       0x1
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#define RESOURCE_DMA2_CLP       0x2
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#define RESOURCE_DMA3_BRS       0x4
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/* saa7146 source inputs */
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#define SAA7146_HPS_SOURCE_PORT_A       0x00
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#define SAA7146_HPS_SOURCE_PORT_B       0x01
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#define SAA7146_HPS_SOURCE_YPB_CPA      0x02
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#define SAA7146_HPS_SOURCE_YPA_CPB      0x03
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/* sync inputs */
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#define SAA7146_HPS_SYNC_PORT_A         0x00
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#define SAA7146_HPS_SYNC_PORT_B         0x01
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/* some memory sizes */
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#define SAA7146_CLIPPING_MEM    (14*PAGE_SIZE)
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/* some defines for the various clipping-modes */
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#define SAA7146_CLIPPING_RECT           0x4
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#define SAA7146_CLIPPING_RECT_INVERTED  0x5
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#define SAA7146_CLIPPING_MASK           0x6
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#define SAA7146_CLIPPING_MASK_INVERTED  0x7
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/* output formats: each entry holds four informations */
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#define RGB08_COMPOSED  0x0217 /* composed is used in the sense of "not-planar" */
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/* this means: planar?=0, yuv2rgb-conversation-mode=2, dither=yes(=1), format-mode = 7 */
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#define RGB15_COMPOSED  0x0213
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#define RGB16_COMPOSED  0x0210
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#define RGB24_COMPOSED  0x0201
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#define RGB32_COMPOSED  0x0202
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#define Y8                      0x0006
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#define YUV411_COMPOSED         0x0003
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#define YUV422_COMPOSED         0x0000
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/* this means: planar?=1, yuv2rgb-conversion-mode=0, dither=no(=0), format-mode = b */
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#define YUV411_DECOMPOSED       0x100b
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#define YUV422_DECOMPOSED       0x1009
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#define YUV420_DECOMPOSED       0x100a
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#define IS_PLANAR(x) (x & 0xf000)
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/* misc defines */
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#define SAA7146_NO_SWAP         (0x0)
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#define SAA7146_TWO_BYTE_SWAP   (0x1)
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#define SAA7146_FOUR_BYTE_SWAP  (0x2)
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#endif