leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity
f167cb4e6e
linux/drivers/media/video/bttvp.h
Michael H. Schimek 67f1570a06 V4L/DVB (3178): bttv VBI fixes 
- V4L2_(G|S|TRY)_FMT returned incorrect VBI start lines for PAL-M,
NTSC-JP, and PAL-60. They also returned an inaccurate VBI offset.
- V4L2_(G|S)_FMT and V4L2_TRY_FMT disagreed about the start of VBI
capturing in PAL and SECAM second field. Note the start line fixes
may break applications using VIDIOCSVBIFMT because this ioctl fails
when the driver does not support exactly the requested parameters.
- V4L2_TRY_FMT did not clear the reserved field in struct
v4l2_vbi_format.
- V4L2_(S|TRY)_FMT did not expect very large or small VBI start or
count values, returning wrong (but safe) counts due to an overflow.
- VIDIOCGVBIFMT confused V4L and V4L2 VBI flags. However this had no
effect because the flags have the same value and bttv never sets
them.
- In v4l_compat_translate_ioctl() the VIDIOC(G|S)VBIFMT code did not
expect V4L2 drivers supporting VBI formats besides V4L2_PIX_FMT_GREY.

Signed-off-by: Michael H. Schimek <mschimek@gmx.at>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
2006-01-09 15:25:27 -02:00

410 lines
11 KiB
C
Raw Blame History

/*
bttv - Bt848 frame grabber driver
bttv's *private* header file -- nobody other than bttv itself
should ever include this file.
(c) 2000-2002 Gerd Knorr <kraxel@bytesex.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _BTTVP_H_
#define _BTTVP_H_
#include <linux/version.h>
#define BTTV_VERSION_CODE KERNEL_VERSION(0,9,16)
#include <linux/types.h>
#include <linux/wait.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/videodev.h>
#include <linux/pci.h>
#include <linux/input.h>
#include <asm/scatterlist.h>
#include <asm/io.h>
#include <linux/device.h>
#include <media/video-buf.h>
#include <media/audiochip.h>
#include <media/tuner.h>
#include <media/tveeprom.h>
#include <media/ir-common.h>
#include "bt848.h"
#include "bttv.h"
#include "btcx-risc.h"
#ifdef __KERNEL__
#define FORMAT_FLAGS_DITHER 0x01
#define FORMAT_FLAGS_PACKED 0x02
#define FORMAT_FLAGS_PLANAR 0x04
#define FORMAT_FLAGS_RAW 0x08
#define FORMAT_FLAGS_CrCb 0x10
#define RISC_SLOT_O_VBI 4
#define RISC_SLOT_O_FIELD 6
#define RISC_SLOT_E_VBI 10
#define RISC_SLOT_E_FIELD 12
#define RISC_SLOT_LOOP 14
#define RESOURCE_OVERLAY 1
#define RESOURCE_VIDEO 2
#define RESOURCE_VBI 4
#define RAW_LINES 640
#define RAW_BPL 1024
#define UNSET (-1U)
#define clamp(x, low, high) min (max (low, x), high)
/* ---------------------------------------------------------- */
struct bttv_tvnorm {
int v4l2_id;
char *name;
u32 Fsc;
u16 swidth, sheight; /* scaled standard width, height */
u16 totalwidth;
u8 adelay, bdelay, iform;
u32 scaledtwidth;
u16 hdelayx1, hactivex1;
u16 vdelay;
u8 vbipack;
u16 vtotal;
int sram;
/* ITU-R frame line number of the first VBI line we can
capture, of the first and second field. */
u16 vbistart[2];
};
extern const struct bttv_tvnorm bttv_tvnorms[];
struct bttv_format {
char *name;
int palette; /* video4linux 1 */
int fourcc; /* video4linux 2 */
int btformat; /* BT848_COLOR_FMT_* */
int btswap; /* BT848_COLOR_CTL_* */
int depth; /* bit/pixel */
int flags;
int hshift,vshift; /* for planar modes */
};
/* ---------------------------------------------------------- */
struct bttv_geometry {
u8 vtc,crop,comb;
u16 width,hscale,hdelay;
u16 sheight,vscale,vdelay,vtotal;
};
struct bttv_buffer {
/* common v4l buffer stuff -- must be first */
struct videobuf_buffer vb;
/* bttv specific */
const struct bttv_format *fmt;
int tvnorm;
int btformat;
int btswap;
struct bttv_geometry geo;
struct btcx_riscmem top;
struct btcx_riscmem bottom;
};
struct bttv_buffer_set {
struct bttv_buffer *top; /* top field buffer */
struct bttv_buffer *bottom; /* bottom field buffer */
unsigned int top_irq;
unsigned int frame_irq;
};
struct bttv_overlay {
int tvnorm;
struct v4l2_rect w;
enum v4l2_field field;
struct v4l2_clip *clips;
int nclips;
int setup_ok;
};
struct bttv_fh {
struct bttv *btv;
int resources;
#ifdef VIDIOC_G_PRIORITY
enum v4l2_priority prio;
#endif
enum v4l2_buf_type type;
/* video capture */
struct videobuf_queue cap;
const struct bttv_format *fmt;
int width;
int height;
/* current settings */
const struct bttv_format *ovfmt;
struct bttv_overlay ov;
/* video overlay */
struct videobuf_queue vbi;
int lines;
};
/* ---------------------------------------------------------- */
/* bttv-risc.c */
/* risc code generators - capture */
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);
/* control dma register + risc main loop */
void bttv_set_dma(struct bttv *btv, int override);
int bttv_risc_init_main(struct bttv *btv);
int bttv_risc_hook(struct bttv *btv, int slot, struct btcx_riscmem *risc,
int irqflags);
/* capture buffer handling */
int bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf);
int bttv_buffer_activate_video(struct bttv *btv,
struct bttv_buffer_set *set);
int bttv_buffer_activate_vbi(struct bttv *btv,
struct bttv_buffer *vbi);
void bttv_dma_free(struct bttv *btv, struct bttv_buffer *buf);
/* overlay handling */
int bttv_overlay_risc(struct bttv *btv, struct bttv_overlay *ov,
const struct bttv_format *fmt,
struct bttv_buffer *buf);
/* ---------------------------------------------------------- */
/* 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);
extern struct videobuf_queue_ops bttv_vbi_qops;
/* ---------------------------------------------------------- */
/* bttv-gpio.c */
extern struct bus_type bttv_sub_bus_type;
int bttv_sub_add_device(struct bttv_core *core, char *name);
int bttv_sub_del_devices(struct bttv_core *core);
void bttv_gpio_irq(struct bttv_core *core);
/* ---------------------------------------------------------- */
/* bttv-driver.c */
/* insmod options */
extern unsigned int bttv_verbose;
extern unsigned int bttv_debug;
extern unsigned int bttv_gpio;
extern void bttv_gpio_tracking(struct bttv *btv, char *comment);
extern int init_bttv_i2c(struct bttv *btv);
extern int fini_bttv_i2c(struct bttv *btv);
#define bttv_printk if (bttv_verbose) printk
#define dprintk if (bttv_debug >= 1) printk
#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 */
struct bttv_pll_info {
unsigned int pll_ifreq; /* PLL input frequency */
unsigned int pll_ofreq; /* PLL output frequency */
unsigned int pll_crystal; /* Crystal used for input */
unsigned int pll_current; /* Currently programmed ofreq */
};
/* for gpio-connected remote control */
struct bttv_input {
struct input_dev *dev;
struct ir_input_state ir;
char name[32];
char phys[32];
u32 mask_keycode;
u32 mask_keydown;
};
struct bttv_suspend_state {
u32 gpio_enable;
u32 gpio_data;
int disabled;
int loop_irq;
struct bttv_buffer_set video;
struct bttv_buffer *vbi;
};
struct bttv {
struct bttv_core c;
/* pci device config */
unsigned short id;
unsigned char revision;
unsigned char __iomem *bt848_mmio; /* pointer to mmio */
/* card configuration info */
unsigned int cardid; /* pci subsystem id (bt878 based ones) */
unsigned int tuner_type; /* tuner chip type */
unsigned int tda9887_conf;
unsigned int svhs;
struct bttv_pll_info pll;
int triton1;
int gpioirq;
int (*custom_irq)(struct bttv *btv);
int use_i2c_hw;
/* old gpio interface */
wait_queue_head_t gpioq;
int shutdown;
void (*audio_hook)(struct bttv *btv, struct video_audio *v, int set);
/* new gpio interface */
spinlock_t gpio_lock;
/* i2c layer */
struct i2c_algo_bit_data i2c_algo;
struct i2c_client i2c_client;
int i2c_state, i2c_rc;
int i2c_done;
wait_queue_head_t i2c_queue;
/* video4linux (1) */
struct video_device *video_dev;
struct video_device *radio_dev;
struct video_device *vbi_dev;
/* infrared remote */
int has_remote;
struct bttv_ir *remote;
/* locking */
spinlock_t s_lock;
struct semaphore lock;
int resources;
struct semaphore reslock;
#ifdef VIDIOC_G_PRIORITY
struct v4l2_prio_state prio;
#endif
/* video state */
unsigned int input;
unsigned int audio;
unsigned long freq;
int tvnorm,hue,contrast,bright,saturation;
struct v4l2_framebuffer fbuf;
unsigned int field_count;
/* various options */
int opt_combfilter;
int opt_lumafilter;
int opt_automute;
int opt_chroma_agc;
int opt_adc_crush;
int opt_vcr_hack;
int opt_whitecrush_upper;
int opt_whitecrush_lower;
int opt_uv_ratio;
int opt_full_luma_range;
int opt_coring;
/* radio data/state */
int has_radio;
int radio_user;
/* miro/pinnacle + Aimslab VHX
philips matchbox (tea5757 radio tuner) support */
int has_matchbox;
int mbox_we;
int mbox_data;
int mbox_clk;
int mbox_most;
int mbox_mask;
/* ISA stuff (Terratec Active Radio Upgrade) */
int mbox_ior;
int mbox_iow;
int mbox_csel;
/* risc memory management data
- must aquire s_lock before changing these
- only the irq handler is supported to touch top + bottom + vcurr */
struct btcx_riscmem main;
struct bttv_buffer *screen; /* overlay */
struct list_head capture; /* video capture queue */
struct list_head vcapture; /* vbi capture queue */
struct bttv_buffer_set curr; /* active buffers */
struct bttv_buffer *cvbi; /* active vbi buffer */
int loop_irq;
int new_input;
unsigned long cap_ctl;
unsigned long dma_on;
struct timer_list timeout;
struct bttv_suspend_state state;
/* stats */
unsigned int errors;
unsigned int framedrop;
unsigned int irq_total;
unsigned int irq_me;
unsigned int users;
struct bttv_fh init;
};
/* our devices */
#define BTTV_MAX 16
extern unsigned int bttv_num;
extern struct bttv bttvs[BTTV_MAX];
/* private ioctls */
#define BTTV_VERSION _IOR('v' , BASE_VIDIOCPRIVATE+6, int)
#define BTTV_VBISIZE _IOR('v' , BASE_VIDIOCPRIVATE+8, int)
#endif
#define btwrite(dat,adr) writel((dat), btv->bt848_mmio+(adr))
#define btread(adr) readl(btv->bt848_mmio+(adr))
#define btand(dat,adr) btwrite((dat) & btread(adr), adr)
#define btor(dat,adr) btwrite((dat) | btread(adr), adr)
#define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
#endif /* _BTTVP_H_ */
/*
* Local variables:
* c-basic-offset: 8
* End:
*/
Reference in New Issue View Git Blame Copy Permalink