d203a7eca8
Rewrite of the Indycam / VINO video v4l2 drivers for the SGI Indy. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Mikael Nousiainen <tmnousia@cc.hut.fi> Cc: <video4linux-list@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
139 lines
4.4 KiB
C
139 lines
4.4 KiB
C
/*
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* Driver for the VINO (Video In No Out) system found in SGI Indys.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License version 2 as published by the Free Software Foundation.
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*
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* Copyright (C) 1999 Ulf Karlsson <ulfc@bun.falkenberg.se>
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* Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
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*/
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#ifndef _VINO_H_
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#define _VINO_H_
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#define VINO_BASE 0x00080000 /* Vino is in the EISA address space,
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* but it is not an EISA bus card */
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#define VINO_PAGE_SIZE 4096
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struct sgi_vino_channel {
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u32 _pad_alpha;
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volatile u32 alpha;
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#define VINO_CLIP_X(x) ((x) & 0x3ff) /* bits 0:9 */
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#define VINO_CLIP_ODD(x) (((x) & 0x1ff) << 10) /* bits 10:18 */
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#define VINO_CLIP_EVEN(x) (((x) & 0x1ff) << 19) /* bits 19:27 */
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u32 _pad_clip_start;
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volatile u32 clip_start;
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u32 _pad_clip_end;
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volatile u32 clip_end;
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#define VINO_FRAMERT_FULL 0xfff
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#define VINO_FRAMERT_PAL (1<<0) /* 0=NTSC 1=PAL */
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#define VINO_FRAMERT_RT(x) (((x) & 0xfff) << 1) /* bits 1:12 */
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u32 _pad_frame_rate;
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volatile u32 frame_rate;
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u32 _pad_field_counter;
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volatile u32 field_counter;
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u32 _pad_line_size;
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volatile u32 line_size;
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u32 _pad_line_count;
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volatile u32 line_count;
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u32 _pad_page_index;
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volatile u32 page_index;
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u32 _pad_next_4_desc;
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volatile u32 next_4_desc;
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u32 _pad_start_desc_tbl;
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volatile u32 start_desc_tbl;
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#define VINO_DESC_JUMP (1<<30)
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#define VINO_DESC_STOP (1<<31)
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#define VINO_DESC_VALID (1<<32)
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u32 _pad_desc_0;
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volatile u32 desc_0;
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u32 _pad_desc_1;
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volatile u32 desc_1;
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u32 _pad_desc_2;
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volatile u32 desc_2;
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u32 _pad_Bdesc_3;
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volatile u32 desc_3;
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u32 _pad_fifo_thres;
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volatile u32 fifo_thres;
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u32 _pad_fifo_read;
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volatile u32 fifo_read;
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u32 _pad_fifo_write;
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volatile u32 fifo_write;
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};
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struct sgi_vino {
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#define VINO_CHIP_ID 0xb
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#define VINO_REV_NUM(x) ((x) & 0x0f)
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#define VINO_ID_VALUE(x) (((x) & 0xf0) >> 4)
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u32 _pad_rev_id;
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volatile u32 rev_id;
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#define VINO_CTRL_LITTLE_ENDIAN (1<<0)
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#define VINO_CTRL_A_EOF_INT (1<<1) /* Field transferred int */
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#define VINO_CTRL_A_FIFO_INT (1<<2) /* FIFO overflow int */
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#define VINO_CTRL_A_EOD_INT (1<<3) /* End of desc table int */
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#define VINO_CTRL_A_INT (VINO_CTRL_A_EOF_INT | \
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VINO_CTRL_A_FIFO_INT | \
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VINO_CTRL_A_EOD_INT)
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#define VINO_CTRL_B_EOF_INT (1<<4) /* Field transferred int */
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#define VINO_CTRL_B_FIFO_INT (1<<5) /* FIFO overflow int */
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#define VINO_CTRL_B_EOD_INT (1<<6) /* End of desc table int */
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#define VINO_CTRL_B_INT (VINO_CTRL_B_EOF_INT | \
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VINO_CTRL_B_FIFO_INT | \
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VINO_CTRL_B_EOD_INT)
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#define VINO_CTRL_A_DMA_ENBL (1<<7)
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#define VINO_CTRL_A_INTERLEAVE_ENBL (1<<8)
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#define VINO_CTRL_A_SYNC_ENBL (1<<9)
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#define VINO_CTRL_A_SELECT (1<<10) /* 1=D1 0=Philips */
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#define VINO_CTRL_A_RGB (1<<11) /* 1=RGB 0=YUV */
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#define VINO_CTRL_A_LUMA_ONLY (1<<12)
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#define VINO_CTRL_A_DEC_ENBL (1<<13) /* Decimation */
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#define VINO_CTRL_A_DEC_SCALE_MASK 0x1c000 /* bits 14:17 */
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#define VINO_CTRL_A_DEC_SCALE_SHIFT (14)
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#define VINO_CTRL_A_DEC_HOR_ONLY (1<<17) /* Horizontal only */
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#define VINO_CTRL_A_DITHER (1<<18) /* 24 -> 8 bit dither */
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#define VINO_CTRL_B_DMA_ENBL (1<<19)
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#define VINO_CTRL_B_INTERLEAVE_ENBL (1<<20)
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#define VINO_CTRL_B_SYNC_ENBL (1<<21)
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#define VINO_CTRL_B_SELECT (1<<22) /* 1=D1 0=Philips */
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#define VINO_CTRL_B_RGB (1<<23) /* 1=RGB 0=YUV */
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#define VINO_CTRL_B_LUMA_ONLY (1<<24)
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#define VINO_CTRL_B_DEC_ENBL (1<<25) /* Decimation */
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#define VINO_CTRL_B_DEC_SCALE_MASK 0x1c000000 /* bits 26:28 */
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#define VINO_CTRL_B_DEC_SCALE_SHIFT (26)
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#define VINO_CTRL_B_DEC_HOR_ONLY (1<<29) /* Decimation horizontal only */
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#define VINO_CTRL_B_DITHER (1<<30) /* ChanB 24 -> 8 bit dither */
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u32 _pad_control;
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volatile u32 control;
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#define VINO_INTSTAT_A_EOF (1<<0) /* Field transferred int */
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#define VINO_INTSTAT_A_FIFO (1<<1) /* FIFO overflow int */
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#define VINO_INTSTAT_A_EOD (1<<2) /* End of desc table int */
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#define VINO_INTSTAT_A (VINO_INTSTAT_A_EOF | \
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VINO_INTSTAT_A_FIFO | \
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VINO_INTSTAT_A_EOD)
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#define VINO_INTSTAT_B_EOF (1<<3) /* Field transferred int */
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#define VINO_INTSTAT_B_FIFO (1<<4) /* FIFO overflow int */
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#define VINO_INTSTAT_B_EOD (1<<5) /* End of desc table int */
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#define VINO_INTSTAT_B (VINO_INTSTAT_B_EOF | \
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VINO_INTSTAT_B_FIFO | \
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VINO_INTSTAT_B_EOD)
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u32 _pad_intr_status;
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volatile u32 intr_status;
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u32 _pad_i2c_control;
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volatile u32 i2c_control;
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u32 _pad_i2c_data;
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volatile u32 i2c_data;
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struct sgi_vino_channel a;
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struct sgi_vino_channel b;
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};
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#endif
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