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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 <ulfc@bun.falkenberg.se>

 * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>

 */

#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