diff options
Diffstat (limited to 'drivers/media/video/bt8xx/bttvp.h')
| -rw-r--r-- | drivers/media/video/bt8xx/bttvp.h | 90 |
1 files changed, 77 insertions, 13 deletions
diff --git a/drivers/media/video/bt8xx/bttvp.h b/drivers/media/video/bt8xx/bttvp.h index 311c4c541e01..ad79b8d53430 100644 --- a/drivers/media/video/bt8xx/bttvp.h +++ b/drivers/media/video/bt8xx/bttvp.h @@ -26,7 +26,7 @@ #define _BTTVP_H_ #include <linux/version.h> -#define BTTV_VERSION_CODE KERNEL_VERSION(0,9,16) +#define BTTV_VERSION_CODE KERNEL_VERSION(0,9,17) #include <linux/types.h> #include <linux/wait.h> @@ -66,14 +66,22 @@ #define RISC_SLOT_LOOP 14 #define RESOURCE_OVERLAY 1 -#define RESOURCE_VIDEO 2 +#define RESOURCE_VIDEO_STREAM 2 #define RESOURCE_VBI 4 +#define RESOURCE_VIDEO_READ 8 #define RAW_LINES 640 #define RAW_BPL 1024 #define UNSET (-1U) +/* Min. value in VDELAY register. */ +#define MIN_VDELAY 2 +/* Even to get Cb first, odd for Cr. */ +#define MAX_HDELAY (0x3FF & -2) +/* Limits scaled width, which must be a multiple of 4. */ +#define MAX_HACTIVE (0x3FF & -4) + #define clamp(x, low, high) min (max (low, x), high) /* ---------------------------------------------------------- */ @@ -92,8 +100,13 @@ struct bttv_tvnorm { u16 vtotal; int sram; /* ITU-R frame line number of the first VBI line we can - capture, of the first and second field. */ + capture, of the first and second field. The last possible line + is determined by cropcap.bounds. */ u16 vbistart[2]; + /* Horizontally this counts fCLKx1 samples following the leading + edge of the horizontal sync pulse, vertically ITU-R frame line + numbers of the first field times two (2, 4, 6, ... 524 or 624). */ + struct v4l2_cropcap cropcap; }; extern const struct bttv_tvnorm bttv_tvnorms[]; @@ -128,6 +141,9 @@ struct bttv_buffer { struct bttv_geometry geo; struct btcx_riscmem top; struct btcx_riscmem bottom; + struct v4l2_rect crop; + unsigned int vbi_skip[2]; + unsigned int vbi_count[2]; }; struct bttv_buffer_set { @@ -146,6 +162,34 @@ struct bttv_overlay { int setup_ok; }; +struct bttv_vbi_fmt { + struct v4l2_vbi_format fmt; + + /* fmt.start[] and count[] refer to this video standard. */ + const struct bttv_tvnorm *tvnorm; + + /* Earliest possible start of video capturing with this + v4l2_vbi_format, in struct bttv_crop.rect units. */ + __s32 end; +}; + +/* bttv-vbi.c */ +void bttv_vbi_fmt_reset(struct bttv_vbi_fmt *f, int norm); + +struct bttv_crop { + /* A cropping rectangle in struct bttv_tvnorm.cropcap units. */ + struct v4l2_rect rect; + + /* Scaled image size limits with this crop rect. Divide + max_height, but not min_height, by two when capturing + single fields. See also bttv_crop_reset() and + bttv_crop_adjust() in bttv-driver.c. */ + __s32 min_scaled_width; + __s32 min_scaled_height; + __s32 max_scaled_width; + __s32 max_scaled_height; +}; + struct bttv_fh { struct bttv *btv; int resources; @@ -160,13 +204,19 @@ struct bttv_fh { int width; int height; - /* current settings */ + /* video overlay */ const struct bttv_format *ovfmt; struct bttv_overlay ov; - /* video overlay */ + /* Application called VIDIOC_S_CROP. */ + int do_crop; + + /* vbi capture */ struct videobuf_queue vbi; - int lines; + /* Current VBI capture window as seen through this fh (cannot + be global for compatibility with earlier drivers). Protected + by struct bttv.lock and struct bttv_fh.vbi.lock. */ + struct bttv_vbi_fmt vbi_fmt; }; /* ---------------------------------------------------------- */ @@ -176,7 +226,8 @@ struct bttv_fh { int bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc, struct scatterlist *sglist, unsigned int offset, unsigned int bpl, - unsigned int pitch, unsigned int lines); + unsigned int pitch, unsigned int skip_lines, + unsigned int store_lines); /* control dma register + risc main loop */ void bttv_set_dma(struct bttv *btv, int override); @@ -202,9 +253,9 @@ int bttv_overlay_risc(struct bttv *btv, struct bttv_overlay *ov, /* ---------------------------------------------------------- */ /* bttv-vbi.c */ -void bttv_vbi_try_fmt(struct bttv_fh *fh, struct v4l2_format *f); -void bttv_vbi_get_fmt(struct bttv_fh *fh, struct v4l2_format *f); -void bttv_vbi_setlines(struct bttv_fh *fh, struct bttv *btv, int lines); +int bttv_vbi_try_fmt(struct bttv_fh *fh, struct v4l2_vbi_format *f); +void bttv_vbi_get_fmt(struct bttv_fh *fh, struct v4l2_vbi_format *f); +int bttv_vbi_set_fmt(struct bttv_fh *fh, struct v4l2_vbi_format *f); extern struct videobuf_queue_ops bttv_vbi_qops; @@ -233,7 +284,6 @@ extern int fini_bttv_i2c(struct bttv *btv); #define d2printk if (bttv_debug >= 2) printk #define BTTV_MAX_FBUF 0x208000 -#define VBIBUF_SIZE (2048*VBI_MAXLINES*2) #define BTTV_TIMEOUT (HZ/2) /* 0.5 seconds */ #define BTTV_FREE_IDLE (HZ) /* one second */ @@ -308,13 +358,12 @@ struct bttv { /* infrared remote */ int has_remote; - struct bttv_ir *remote; + struct card_ir *remote; /* locking */ spinlock_t s_lock; struct mutex lock; int resources; - struct mutex reslock; #ifdef VIDIOC_G_PRIORITY struct v4l2_prio_state prio; #endif @@ -384,6 +433,21 @@ struct bttv { unsigned int users; struct bttv_fh init; + + /* Default (0) and current (1) video capturing and overlay + cropping parameters in bttv_tvnorm.cropcap units. Protected + by bttv.lock. */ + struct bttv_crop crop[2]; + + /* Earliest possible start of video capturing in + bttv_tvnorm.cropcap line units. Set by check_alloc_btres() + and free_btres(). Protected by bttv.lock. */ + __s32 vbi_end; + + /* Latest possible end of VBI capturing (= crop[x].rect.top when + VIDEO_RESOURCES are locked). Set by check_alloc_btres() + and free_btres(). Protected by bttv.lock. */ + __s32 crop_start; }; /* our devices */ |