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/*

 * 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.

 *

 * 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 _BUZ_H_

#define _BUZ_H_

struct zoran_requestbuffers {

        unsigned long count;    /* Number of buffers for MJPEG grabbing */

        unsigned long size;     /* Size PER BUFFER in bytes */

};

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 */

};

struct zoran_status {

        int input;              /* Input channel, has to be set prior to BUZIOC_G_STATUS */

        int signal;             /* Returned: 1 if valid video signal detected */

        int norm;               /* Returned: VIDEO_MODE_PAL or VIDEO_MODE_NTSC */

        int color;              /* Returned: 1 if color signal detected */

};

struct zoran_params {

        /* The following parameters can only be queried */

        int major_version;      /* Major version number of driver */

        int minor_version;      /* Minor version number of driver */

        /* Main control parameters */

        int input;              /* Input channel: 0 = Composite, 1 = S-VHS */

        int norm;               /* Norm: VIDEO_MODE_PAL or VIDEO_MODE_NTSC */

        int decimation;         /* decimation of captured video,

                                 * enlargement of video played back.

                                 * Valid values are 1, 2, 4 or 0.

                                 * 0 is a special value where the user

                                 * has full control over video scaling */

        /* The following parameters only have to be set if decimation==0,

         * for other values of decimation they provide the data how the image is captured */

        int HorDcm;             /* Horizontal decimation: 1, 2 or 4 */

        int VerDcm;             /* Vertical decimation: 1 or 2 */

        int TmpDcm;             /* Temporal decimation: 1 or 2,

                                 * if TmpDcm==2 in capture every second frame is dropped,

                                 * in playback every frame is played twice */

        int field_per_buff;     /* Number of fields per buffer: 1 or 2 */

        int img_x;              /* start of image in x direction */

        int img_y;              /* start of image in y direction */

        int img_width;          /* image width BEFORE decimation,

                                 * must be a multiple of HorDcm*16 */

        int img_height;         /* image height BEFORE decimation,

                                 * must be a multiple of VerDcm*8 */

        /* --- End of parameters for decimation==0 only --- */

        /* JPEG control parameters */

        int quality;            /* Measure for quality of compressed images.

                                 * Scales linearly with the size of the compressed images.

                                 * Must be beetween 0 and 100, 100 is a compression

                                 * ratio of 1:4 */

        int odd_even;           /* Which field should come first ??? */

        int APPn;               /* Number of APP segment to be written, must be 0..15 */

        int APP_len;            /* Length of data in JPEG APPn segment */

        char APP_data[60];      /* Data in the JPEG APPn segment. */

        int COM_len;            /* Length of data in JPEG COM segment */

        char COM_data[60];      /* Data in JPEG COM segment */

        unsigned long jpeg_markers;     /* Which markers should go into the JPEG output.

                                         * Unless you exactly know what you do, leave them untouched.

                                         * Inluding less markers will make the resulting code

                                         * smaller, but there will be fewer aplications

                                         * which can read it.

                                         * The presence of the APP and COM marker is

                                         * influenced by APP0_len and COM_len ONLY! */

#define JPEG_MARKER_DHT (1<<3)  /* Define Huffman Tables */

#define JPEG_MARKER_DQT (1<<4)  /* Define Quantization Tables */

#define JPEG_MARKER_DRI (1<<5)  /* Define Restart Interval */

#define JPEG_MARKER_COM (1<<6)  /* Comment segment */

#define JPEG_MARKER_APP (1<<7)  /* App segment, driver will allways use APP0 */

        int VFIFO_FB;           /* Flag for enabling Video Fifo Feedback.

                                 * If this flag is turned on and JPEG decompressing

                                 * is going to the screen, the decompress process

                                 * is stopped every time the Video Fifo is full.

                                 * This enables a smooth decompress to the screen

                                 * but the video output signal will get scrambled */

        /* Misc */

        char reserved[312];     /* Makes 512 bytes for this structure */

};

/*

Private IOCTL to set up for displaying MJPEG

*/

#define BUZIOC_G_PARAMS       _IOR ('v', BASE_VIDIOCPRIVATE+0,  struct zoran_params)

#define BUZIOC_S_PARAMS       _IOWR('v', BASE_VIDIOCPRIVATE+1,  struct zoran_params)

#define BUZIOC_REQBUFS        _IOWR('v', BASE_VIDIOCPRIVATE+2,  struct zoran_requestbuffers)

#define BUZIOC_QBUF_CAPT      _IOW ('v', BASE_VIDIOCPRIVATE+3,  int)

#define BUZIOC_QBUF_PLAY      _IOW ('v', BASE_VIDIOCPRIVATE+4,  int)

#define BUZIOC_SYNC           _IOR ('v', BASE_VIDIOCPRIVATE+5,  struct zoran_sync)

#define BUZIOC_G_STATUS       _IOWR('v', BASE_VIDIOCPRIVATE+6,  struct zoran_status)

#ifdef __KERNEL__

#define MAJOR_VERSION 0         /* driver major version */

#define MINOR_VERSION 9         /* driver minor version */

#define RELEASE_VERSION 5       /* release version */

#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_KMALLOC_MEM (128*1024)

#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 {

        GPIO_JPEG_SLEEP = 0,

        GPIO_JPEG_RESET,

        GPIO_JPEG_FRAME,

        GPIO_VID_DIR,

        GPIO_VID_EN,

        GPIO_VID_RESET,

        GPIO_CLK_SEL1,

        GPIO_CLK_SEL2,

        GPIO_MAX,

};

enum gpcs_type {

        GPCS_JPEG_RESET = 0,

        GPCS_JPEG_START,

        GPCS_MAX,

};

struct zoran_format {

        char *name;

#ifdef CONFIG_VIDEO_V4L1_COMPAT

        int palette;

#endif

#ifdef CONFIG_VIDEO_V4L2

        __u32 fourcc;

        int colorspace;

#endif

        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 */

};

/* whoops, this one is undeclared if !v4l2 */

#ifndef CONFIG_VIDEO_V4L2

struct v4l2_jpegcompression {

        int quality;

        int APPn;

        int APP_len;

        char APP_data[60];

        int COM_len;

        char COM_data[60];

        __u32 jpeg_markers;

        __u8 reserved[116];

};

#endif

/* 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_mapping {

        struct file *file;

        int count;

};

struct zoran_jpg_buffer {

        struct zoran_mapping *map;

        u32 *frag_tab;          /* addresses of frag table */

        u32 frag_tab_bus;       /* same value cached to save time in ISR */

        enum zoran_buffer_state state;  /* non-zero if corresponding buffer is in use in grab queue */

        struct zoran_sync bs;   /* DONE: info to return to application */

};

struct zoran_v4l_buffer {

        struct zoran_mapping *map;

        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 */

        enum zoran_buffer_state state;  /* state: unused/pending/done */

        struct zoran_sync bs;   /* DONE: info to return to application */

};

enum zoran_lock_activity {

        ZORAN_FREE,             /* free for use */

        ZORAN_ACTIVE,           /* active but unlocked */

        ZORAN_LOCKED,           /* locked */

};

/* buffer collections */

struct zoran_jpg_struct {

        enum zoran_lock_activity active;        /* feature currently in use? */

        struct zoran_jpg_buffer buffer[BUZ_MAX_FRAME];  /* buffers */

        int num_buffers, buffer_size;

        u8 allocated;           /* Flag if buffers are allocated  */

        u8 ready_to_be_freed;   /* hack - see zoran_driver.c */

        u8 need_contiguous;     /* Flag if contiguous buffers are needed */

};

struct zoran_v4l_struct {

        enum zoran_lock_activity active;        /* feature currently in use? */

        struct zoran_v4l_buffer buffer[VIDEO_MAX_FRAME];        /* buffers */

        int num_buffers, buffer_size;

        u8 allocated;           /* Flag if buffers are allocated  */

        u8 ready_to_be_freed;   /* hack - see zoran_driver.c */

};

struct zoran;

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

struct zoran_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_v4l_settings v4l_settings; /* structure with a lot of things to play with */

        struct zoran_v4l_struct v4l_buffers;    /* V4L buffers' info */

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

        struct zoran_jpg_struct jpg_buffers;    /* MJPEG buffers' info */

};

struct card_info {

        enum card_type type;

        char name[32];

        u16 i2c_decoder, i2c_encoder;                   /* I2C types */

        u16 video_vfe, video_codec;                     /* videocodec types */

        u16 audio_chip;                                 /* audio type */

        u16 vendor_id, device_id;       /* subsystem vendor/device ID */

        int inputs;             /* number of video inputs */

        struct input {

                int muxsel;

                char name[32];

        } input[BUZ_MAX_INPUT];

        int norms;

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

        u32 jpeg_int;           /* JPEG interrupt */

        u32 vsync_int;          /* VSYNC interrupt */

        s8 gpio[GPIO_MAX];

        u8 gpcs[GPCS_MAX];

        struct vfe_polarity vfe_pol;

        u8 gpio_pol[GPIO_MAX];

        /* is the /GWS line conected? */

        u8 gws_not_connected;

        /* avs6eyes mux setting */

        u8 input_mux;

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

};

struct zoran {

        struct video_device *video_dev;

        struct i2c_adapter i2c_adapter; /* */

        struct i2c_algo_bit_data i2c_algo;      /* */

        u32 i2cbr;

        struct i2c_client *decoder;     /* video decoder i2c client */

        struct i2c_client *encoder;     /* video encoder i2c client */

        struct videocodec *codec;       /* video codec */

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

        struct mutex resource_lock;     /* prevent evil stuff */

        u8 initialized;         /* flag if zoran has been correctly initalized */

        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 int zr36057_adr;       /* bus address of IO mem returned by PCI BIOS */

        unsigned char __iomem *zr36057_mem;/* pointer to mapped IO memory */

        spinlock_t spinlock;    /* Spinlock */

        /* Video for Linux parameters */

        int input, norm;        /* card's norm and input - norm=VIDEO_MODE_* */

        int hue, saturation, contrast, brightness;      /* Current picture params */

        struct video_buffer buffer;     /* Current buffer params */

        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_v4l_struct 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 */

        u32 *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_jpg_struct 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;

};

/*The following should be done in more portable way. It depends on define

  of _ALPHA_BUZ in the Makefile.*/

#ifdef _ALPHA_BUZ

#define btwrite(dat,adr)    writel((dat), zr->zr36057_adr+(adr))

#define btread(adr)         readl(zr->zr36057_adr+(adr))

#else

#define btwrite(dat,adr)    writel((dat), zr->zr36057_mem+(adr))

#define btread(adr)         readl(zr->zr36057_mem+(adr))

#endif

#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                          /* __kernel__ */

#endif