cregit-Linux how code gets into the kernel

Release 4.11 drivers/media/pci/zoran/zoran.h

/*
 * zoran - Iomega Buz driver
 *
 * Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de>
 *
 * based on
 *
 * zoran.0.0.3 Copyright (C) 1998 Dave Perks <dperks@ibm.net>
 *
 * and
 *
 * bttv - Bt848 frame grabber driver
 * Copyright (C) 1996,97,98 Ralph  Metzler (rjkm@thp.uni-koeln.de)
 *                        & Marcus Metzler (mocm@thp.uni-koeln.de)
 *
 * 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.
 */

#ifndef _BUZ_H_

#define _BUZ_H_

#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-fh.h>


struct zoran_sync {
	
unsigned long frame;	/* number of buffer that has been free'd */
	
unsigned long length;	/* number of code bytes in buffer (capture only) */
	
unsigned long seq;	/* frame sequence number */
	
struct timeval timestamp;	/* timestamp */
};



#define ZORAN_NAME    "ZORAN"	
/* name of the device */


#define ZR_DEVNAME(zr) ((zr)->name)


#define   BUZ_MAX_WIDTH   (zr->timing->Wa)

#define   BUZ_MAX_HEIGHT  (zr->timing->Ha)

#define   BUZ_MIN_WIDTH    32	
/* never display less than 32 pixels */

#define   BUZ_MIN_HEIGHT   24	
/* never display less than 24 rows */


#define BUZ_NUM_STAT_COM    4

#define BUZ_MASK_STAT_COM   3


#define BUZ_MAX_FRAME     256	
/* Must be a power of 2 */

#define BUZ_MASK_FRAME    255	
/* Must be BUZ_MAX_FRAME-1 */


#define BUZ_MAX_INPUT       16

#if VIDEO_MAX_FRAME <= 32

#   define   V4L_MAX_FRAME   32
#elif VIDEO_MAX_FRAME <= 64

#   define   V4L_MAX_FRAME   64
#else
#   error   "Too many video frame buffers to handle"
#endif

#define   V4L_MASK_FRAME   (V4L_MAX_FRAME - 1)


#define MAX_FRAME (BUZ_MAX_FRAME > VIDEO_MAX_FRAME ? BUZ_MAX_FRAME : VIDEO_MAX_FRAME)

#include "zr36057.h"


enum card_type {
	
UNKNOWN = -1,

	/* Pinnacle/Miro */
	
DC10_old,		/* DC30 like */
	
DC10_new,		/* DC10plus like */
	
DC10plus,
	
DC30,
	
DC30plus,

	/* Linux Media Labs */
	
LML33,
	
LML33R10,

	/* Iomega */
	
BUZ,

	/* AverMedia */
	
AVS6EYES,

	/* total number of cards */
	
NUM_CARDS
};


enum zoran_codec_mode {
	
BUZ_MODE_IDLE,		/* nothing going on */
	
BUZ_MODE_MOTION_COMPRESS,	/* grabbing frames */
	
BUZ_MODE_MOTION_DECOMPRESS,	/* playing frames */
	
BUZ_MODE_STILL_COMPRESS,	/* still frame conversion */
	
BUZ_MODE_STILL_DECOMPRESS	/* still frame conversion */
};


enum zoran_buffer_state {
	
BUZ_STATE_USER,		/* buffer is owned by application */
	
BUZ_STATE_PEND,		/* buffer is queued in pend[] ready to feed to I/O */
	
BUZ_STATE_DMA,		/* buffer is queued in dma[] for I/O */
	
BUZ_STATE_DONE		/* buffer is ready to return to application */
};


enum zoran_map_mode {
	
ZORAN_MAP_MODE_RAW,
	
ZORAN_MAP_MODE_JPG_REC,

#define ZORAN_MAP_MODE_JPG ZORAN_MAP_MODE_JPG_REC
	
ZORAN_MAP_MODE_JPG_PLAY,
};


enum gpio_type {
	
ZR_GPIO_JPEG_SLEEP = 0,
	
ZR_GPIO_JPEG_RESET,
	
ZR_GPIO_JPEG_FRAME,
	
ZR_GPIO_VID_DIR,
	
ZR_GPIO_VID_EN,
	
ZR_GPIO_VID_RESET,
	
ZR_GPIO_CLK_SEL1,
	
ZR_GPIO_CLK_SEL2,
	
ZR_GPIO_MAX,
};


enum gpcs_type {
	
GPCS_JPEG_RESET = 0,
	
GPCS_JPEG_START,
	
GPCS_MAX,
};


struct zoran_format {
	
char *name;
	
__u32 fourcc;
	
int colorspace;
	
int depth;
	
__u32 flags;
	
__u32 vfespfr;
};
/* flags */

#define ZORAN_FORMAT_COMPRESSED 1<<0

#define ZORAN_FORMAT_OVERLAY    1<<1

#define ZORAN_FORMAT_CAPTURE	1<<2

#define ZORAN_FORMAT_PLAYBACK	1<<3

/* overlay-settings */

struct zoran_overlay_settings {
	
int is_set;
	



int x, y, width, height;	/* position */
	
int clipcount;		/* position and number of clips */
	
const struct zoran_format *format;	/* overlay format */
};

/* v4l-capture settings */

struct zoran_v4l_settings {
	


int width, height, bytesperline;	/* capture size */
	
const struct zoran_format *format;	/* capture format */
};

/* jpg-capture/-playback settings */

struct zoran_jpg_settings {
	
int decimation;		/* this bit is used to set everything to default */
	


int HorDcm, VerDcm, TmpDcm;	/* capture decimation settings (TmpDcm=1 means both fields) */
	

int field_per_buff, odd_even;	/* field-settings (odd_even=1 (+TmpDcm=1) means top-field-first) */
	



int img_x, img_y, img_width, img_height;	/* crop settings (subframe capture) */
	
struct v4l2_jpegcompression jpg_comp;	/* JPEG-specific capture settings */
};

struct zoran_fh;


struct zoran_mapping {
	
struct zoran_fh *fh;
	
atomic_t count;
};


struct zoran_buffer {
	
struct zoran_mapping *map;
	
enum zoran_buffer_state state;	/* state: unused/pending/dma/done */
	
struct zoran_sync bs;		/* DONE: info to return to application */
	union {
		struct {
			
__le32 *frag_tab;	/* addresses of frag table */
			
u32 frag_tab_bus;	/* same value cached to save time in ISR */
		} 
jpg;
		struct {
			
char *fbuffer;		/* virtual address of frame buffer */
			
unsigned long fbuffer_phys;/* physical address of frame buffer */
			
unsigned long fbuffer_bus;/* bus address of frame buffer */
		} 
v4l;
	};
};


enum zoran_lock_activity {
	
ZORAN_FREE,		/* free for use */
	
ZORAN_ACTIVE,		/* active but unlocked */
	
ZORAN_LOCKED,		/* locked */
};

/* buffer collections */

struct zoran_buffer_col {
	
enum zoran_lock_activity active;	/* feature currently in use? */
	

unsigned int num_buffers, buffer_size;
	
struct zoran_buffer buffer[MAX_FRAME];	/* buffers */
	
u8 allocated;		/* Flag if buffers are allocated  */
	
u8 need_contiguous;	/* Flag if contiguous buffers are needed */
	/* only applies to jpg buffers, raw buffers are always contiguous */
};

struct zoran;

/* zoran_fh contains per-open() settings */

struct zoran_fh {
	
struct v4l2_fh fh;
	
struct zoran *zr;

	
enum zoran_map_mode map_mode;		/* Flag which bufferset will map by next mmap() */

	
struct zoran_overlay_settings overlay_settings;
	
u32 *overlay_mask;			/* overlay mask */
	
enum zoran_lock_activity overlay_active;/* feature currently in use? */

	
struct zoran_buffer_col buffers;	/* buffers' info */

	
struct zoran_v4l_settings v4l_settings;	/* structure with a lot of things to play with */
	
struct zoran_jpg_settings jpg_settings;	/* structure with a lot of things to play with */
};


struct card_info {
	
enum card_type type;
	
char name[32];
	
const char *i2c_decoder;	/* i2c decoder device */
	
const unsigned short *addrs_decoder;
	
const char *i2c_encoder;	/* i2c encoder device */
	
const unsigned short *addrs_encoder;
	

u16 video_vfe, video_codec;			/* videocodec types */
	
u16 audio_chip;					/* audio type */

	
int inputs;		/* number of video inputs */
	
struct input {
		
int muxsel;
		
char name[32];
	} 
input[BUZ_MAX_INPUT];

	
v4l2_std_id norms;
	
struct tvnorm *tvn[3];	/* supported TV norms */

	
u32 jpeg_int;		/* JPEG interrupt */
	
u32 vsync_int;		/* VSYNC interrupt */
	
s8 gpio[ZR_GPIO_MAX];
	
u8 gpcs[GPCS_MAX];

	
struct vfe_polarity vfe_pol;
	
u8 gpio_pol[ZR_GPIO_MAX];

	/* is the /GWS line connected? */
	
u8 gws_not_connected;

	/* avs6eyes mux setting */
	
u8 input_mux;

	
void (*init) (struct zoran * zr);
};


struct zoran {
	
struct v4l2_device v4l2_dev;
	
struct v4l2_ctrl_handler hdl;
	
struct video_device *video_dev;

	
struct i2c_adapter i2c_adapter;	/* */
	
struct i2c_algo_bit_data i2c_algo;	/* */
	
u32 i2cbr;

	
struct v4l2_subdev *decoder;	/* video decoder sub-device */
	
struct v4l2_subdev *encoder;	/* video encoder sub-device */

	
struct videocodec *codec;	/* video codec */
	
struct videocodec *vfe;	/* video front end */

	
struct mutex lock;	/* file ops serialize lock */

	
u8 initialized;		/* flag if zoran has been correctly initialized */
	
int user;		/* number of current users */
	
struct card_info card;
	
struct tvnorm *timing;

	
unsigned short id;	/* number of this device */
	
char name[32];		/* name of this device */
	
struct pci_dev *pci_dev;	/* PCI device */
	
unsigned char revision;	/* revision of zr36057 */
	
unsigned char __iomem *zr36057_mem;/* pointer to mapped IO memory */

	
spinlock_t spinlock;	/* Spinlock */

	/* Video for Linux parameters */
	
int input;	/* card's norm and input */
	
v4l2_std_id norm;

	/* Current buffer params */
	
void    *vbuf_base;
	

int     vbuf_height, vbuf_width;
	
int     vbuf_depth;
	
int     vbuf_bytesperline;

	
struct zoran_overlay_settings overlay_settings;
	
u32 *overlay_mask;	/* overlay mask */
	
enum zoran_lock_activity overlay_active;	/* feature currently in use? */

	
wait_queue_head_t v4l_capq;

	
int v4l_overlay_active;	/* Overlay grab is activated */
	
int v4l_memgrab_active;	/* Memory grab is activated */

	
int v4l_grab_frame;	/* Frame number being currently grabbed */

#define NO_GRAB_ACTIVE (-1)
	
unsigned long v4l_grab_seq;	/* Number of frames grabbed */
	
struct zoran_v4l_settings v4l_settings;	/* structure with a lot of things to play with */

	/* V4L grab queue of frames pending */
	
unsigned long v4l_pend_head;
	
unsigned long v4l_pend_tail;
	
unsigned long v4l_sync_tail;
	
int v4l_pend[V4L_MAX_FRAME];
	
struct zoran_buffer_col v4l_buffers;	/* V4L buffers' info */

	/* Buz MJPEG parameters */
	
enum zoran_codec_mode codec_mode;	/* status of codec */
	
struct zoran_jpg_settings jpg_settings;	/* structure with a lot of things to play with */

	
wait_queue_head_t jpg_capq;	/* wait here for grab to finish */

	/* grab queue counts/indices, mask with BUZ_MASK_STAT_COM before using as index */
	/* (dma_head - dma_tail) is number active in DMA, must be <= BUZ_NUM_STAT_COM */
	/* (value & BUZ_MASK_STAT_COM) corresponds to index in stat_com table */
	
unsigned long jpg_que_head;	/* Index where to put next buffer which is queued */
	
unsigned long jpg_dma_head;	/* Index of next buffer which goes into stat_com  */
	
unsigned long jpg_dma_tail;	/* Index of last buffer in stat_com               */
	
unsigned long jpg_que_tail;	/* Index of last buffer in queue                  */
	
unsigned long jpg_seq_num;	/* count of frames since grab/play started        */
	
unsigned long jpg_err_seq;	/* last seq_num before error                      */
	
unsigned long jpg_err_shift;
	
unsigned long jpg_queued_num;	/* count of frames queued since grab/play started */

	/* zr36057's code buffer table */
	
__le32 *stat_com;		/* stat_com[i] is indexed by dma_head/tail & BUZ_MASK_STAT_COM */

	/* (value & BUZ_MASK_FRAME) corresponds to index in pend[] queue */
	
int jpg_pend[BUZ_MAX_FRAME];

	/* array indexed by frame number */
	
struct zoran_buffer_col jpg_buffers;	/* MJPEG buffers' info */

	/* Additional stuff for testing */
#ifdef CONFIG_PROC_FS
	
struct proc_dir_entry *zoran_proc;
#else
	
void *zoran_proc;
#endif
	
int testing;
	
int jpeg_error;
	
int intr_counter_GIRQ1;
	
int intr_counter_GIRQ0;
	
int intr_counter_CodRepIRQ;
	
int intr_counter_JPEGRepIRQ;
	
int field_counter;
	
int IRQ1_in;
	
int IRQ1_out;
	
int JPEG_in;
	
int JPEG_out;
	
int JPEG_0;
	
int JPEG_1;
	
int END_event_missed;
	
int JPEG_missed;
	
int JPEG_error;
	
int num_errors;
	
int JPEG_max_missed;
	
int JPEG_min_missed;

	
u32 last_isr;
	
unsigned long frame_num;

	
wait_queue_head_t test_q;
};


static inline struct zoran *to_zoran(struct v4l2_device *v4l2_dev) { return container_of(v4l2_dev, struct zoran, v4l2_dev); }

Contributors

PersonTokensPropCommitsCommitProp
Hans Verkuil25100.00%1100.00%
Total25100.00%1100.00%

/* There was something called _ALPHA_BUZ that used the PCI address instead of * the kernel iomapped address for btread/btwrite. */ #define btwrite(dat,adr) writel((dat), zr->zr36057_mem+(adr)) #define btread(adr) readl(zr->zr36057_mem+(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

Overall Contributors

PersonTokensPropCommitsCommitProp
Ronald S. Bultje50845.24%14.17%
Linus Torvalds (pre-git)32629.03%14.17%
Linus Torvalds11610.33%14.17%
Hans Verkuil928.19%625.00%
Trent Piepho474.19%312.50%
Mauro Carvalho Chehab110.98%14.17%
Al Viro90.80%416.67%
Martin Samuelsson80.71%14.17%
Andrew Morton20.18%28.33%
Sakari Ailus10.09%14.17%
Ingo Molnar10.09%14.17%
Uwe Kleine-König10.09%14.17%
Lucas De Marchi10.09%14.17%
Total1123100.00%24100.00%
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