vino.h

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/*
 * Driver for the VINO (Video In No Out) system found in SGI Indys.
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License version 2 as published by the Free Software Foundation.
 *
 * Copyright (C) 1999 Ulf Karlsson <[email protected]>
 * Copyright (C) 2003 Ladislav Michl <[email protected]>
 */

#ifndef _VINO_H_
#define _VINO_H_

#define VINO_BASE   0x00080000  /* Vino is in the EISA address space,
                     * but it is not an EISA bus card */
#define VINO_PAGE_SIZE  4096

struct sgi_vino_channel {
    u32 _pad_alpha;
    volatile u32 alpha;

#define VINO_CLIP_X(x)      ((x) & 0x3ff)       /* bits 0:9 */
#define VINO_CLIP_ODD(x)    (((x) & 0x1ff) << 10)   /* bits 10:18 */
#define VINO_CLIP_EVEN(x)   (((x) & 0x1ff) << 19)   /* bits 19:27 */
    u32 _pad_clip_start;
    volatile u32 clip_start;
    u32 _pad_clip_end;
    volatile u32 clip_end;

#define VINO_FRAMERT_FULL   0xfff
#define VINO_FRAMERT_PAL    (1<<0)          /* 0=NTSC 1=PAL */
#define VINO_FRAMERT_RT(x)  (((x) & 0xfff) << 1)    /* bits 1:12 */
    u32 _pad_frame_rate;
    volatile u32 frame_rate;

    u32 _pad_field_counter;
    volatile u32 field_counter;
    u32 _pad_line_size;
    volatile u32 line_size;
    u32 _pad_line_count;
    volatile u32 line_count;
    u32 _pad_page_index;
    volatile u32 page_index;
    u32 _pad_next_4_desc;
    volatile u32 next_4_desc;
    u32 _pad_start_desc_tbl;
    volatile u32 start_desc_tbl;

#define VINO_DESC_JUMP      (1<<30)
#define VINO_DESC_STOP      (1<<31)
#define VINO_DESC_VALID     (1<<32)
    u32 _pad_desc_0;
    volatile u32 desc_0;
    u32 _pad_desc_1;
    volatile u32 desc_1;
    u32 _pad_desc_2;
    volatile u32 desc_2;
    u32 _pad_Bdesc_3;
    volatile u32 desc_3;

    u32 _pad_fifo_thres;
    volatile u32 fifo_thres;
    u32 _pad_fifo_read;
    volatile u32 fifo_read;
    u32 _pad_fifo_write;
    volatile u32 fifo_write;
};

struct sgi_vino {
#define VINO_CHIP_ID        0xb
#define VINO_REV_NUM(x)     ((x) & 0x0f)
#define VINO_ID_VALUE(x)    (((x) & 0xf0) >> 4)
    u32 _pad_rev_id;
    volatile u32 rev_id;

#define VINO_CTRL_LITTLE_ENDIAN     (1<<0)
#define VINO_CTRL_A_EOF_INT     (1<<1)  /* Field transferred int */
#define VINO_CTRL_A_FIFO_INT        (1<<2)  /* FIFO overflow int */
#define VINO_CTRL_A_EOD_INT     (1<<3)  /* End of desc table int */
#define VINO_CTRL_A_INT         (VINO_CTRL_A_EOF_INT | \
                     VINO_CTRL_A_FIFO_INT | \
                     VINO_CTRL_A_EOD_INT)
#define VINO_CTRL_B_EOF_INT     (1<<4)  /* Field transferred int */
#define VINO_CTRL_B_FIFO_INT        (1<<5)  /* FIFO overflow int */
#define VINO_CTRL_B_EOD_INT     (1<<6)  /* End of desc table int */
#define VINO_CTRL_B_INT         (VINO_CTRL_B_EOF_INT | \
                     VINO_CTRL_B_FIFO_INT | \
                     VINO_CTRL_B_EOD_INT)
#define VINO_CTRL_A_DMA_ENBL        (1<<7)
#define VINO_CTRL_A_INTERLEAVE_ENBL (1<<8)
#define VINO_CTRL_A_SYNC_ENBL       (1<<9)
#define VINO_CTRL_A_SELECT      (1<<10) /* 1=D1 0=Philips */
#define VINO_CTRL_A_RGB         (1<<11) /* 1=RGB 0=YUV */
#define VINO_CTRL_A_LUMA_ONLY       (1<<12)
#define VINO_CTRL_A_DEC_ENBL        (1<<13) /* Decimation */
#define VINO_CTRL_A_DEC_SCALE_MASK  0x1c000 /* bits 14:17 */
#define VINO_CTRL_A_DEC_SCALE_SHIFT (14)
#define VINO_CTRL_A_DEC_HOR_ONLY    (1<<17) /* Horizontal only */
#define VINO_CTRL_A_DITHER      (1<<18) /* 24 -> 8 bit dither */
#define VINO_CTRL_B_DMA_ENBL        (1<<19)
#define VINO_CTRL_B_INTERLEAVE_ENBL (1<<20)
#define VINO_CTRL_B_SYNC_ENBL       (1<<21)
#define VINO_CTRL_B_SELECT      (1<<22) /* 1=D1 0=Philips */
#define VINO_CTRL_B_RGB         (1<<23) /* 1=RGB 0=YUV */
#define VINO_CTRL_B_LUMA_ONLY       (1<<24)
#define VINO_CTRL_B_DEC_ENBL        (1<<25) /* Decimation */
#define VINO_CTRL_B_DEC_SCALE_MASK  0x1c000000  /* bits 26:28 */
#define VINO_CTRL_B_DEC_SCALE_SHIFT (26)
#define VINO_CTRL_B_DEC_HOR_ONLY    (1<<29) /* Decimation horizontal only */
#define VINO_CTRL_B_DITHER      (1<<30) /* ChanB 24 -> 8 bit dither */
    u32 _pad_control;
    volatile u32 control;

#define VINO_INTSTAT_A_EOF      (1<<0)  /* Field transferred int */
#define VINO_INTSTAT_A_FIFO     (1<<1)  /* FIFO overflow int */
#define VINO_INTSTAT_A_EOD      (1<<2)  /* End of desc table int */
#define VINO_INTSTAT_A          (VINO_INTSTAT_A_EOF | \
                     VINO_INTSTAT_A_FIFO | \
                     VINO_INTSTAT_A_EOD)
#define VINO_INTSTAT_B_EOF      (1<<3)  /* Field transferred int */
#define VINO_INTSTAT_B_FIFO     (1<<4)  /* FIFO overflow int */
#define VINO_INTSTAT_B_EOD      (1<<5)  /* End of desc table int */
#define VINO_INTSTAT_B          (VINO_INTSTAT_B_EOF | \
                     VINO_INTSTAT_B_FIFO | \
                     VINO_INTSTAT_B_EOD)
    u32 _pad_intr_status;
    volatile u32 intr_status;

    u32 _pad_i2c_control;
    volatile u32 i2c_control;
    u32 _pad_i2c_data;
    volatile u32 i2c_data;

    struct sgi_vino_channel a;
    struct sgi_vino_channel b;
};

#endif