tiler/tiler.h

/*
 *  tiler.h
 *
 *  TILER driver support functions for TI OMAP processors.
 *
 *  Copyright (C) 2009-2011 Texas Instruments, Inc.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *
 *  *  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *  *  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 *  *  Neither the name of Texas Instruments Incorporated nor the names of
 *     its contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 *  THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 *  PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 *  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 *  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 *  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 *  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 *  EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _TILER_H_
#define _TILER_H_

#define TILER_MEM_8BIT  0x60000000
#define TILER_MEM_16BIT 0x68000000
#define TILER_MEM_32BIT 0x70000000
#define TILER_MEM_PAGED 0x78000000
#define TILER_MEM_END   0x80000000

#define TILER_PAGE 0x1000
#define TILER_WIDTH    256
#define TILER_HEIGHT   128
#define TILER_BLOCK_WIDTH  64
#define TILER_BLOCK_HEIGHT 64
#define TILER_LENGTH (TILER_WIDTH * TILER_HEIGHT * TILER_PAGE)

#define TILER_DEVICE_PATH "/dev/tiler"
#define TILER_MAX_NUM_BLOCKS 16

enum tiler_fmt {
	TILFMT_MIN     = -2,
	TILFMT_INVALID = -2,
	TILFMT_NONE    = -1,
	TILFMT_8BIT    = 0,
	TILFMT_16BIT   = 1,
	TILFMT_32BIT   = 2,
	TILFMT_PAGE    = 3,
	TILFMT_MAX     = 3,
	TILFMT_8AND16  = 4,
};

struct area {
	uint16_t width;
	uint16_t height;
};

struct tiler_block_info {
	enum tiler_fmt fmt;
	union {
		struct area area;
		uint32_t len;
	} dim;
	uint32_t stride;
	void *ptr;
	uint32_t id;
	uint32_t key;
	uint32_t group_id;
	uint32_t ssptr;
};

struct tiler_buf_info {
	uint32_t num_blocks;
	struct tiler_block_info blocks[TILER_MAX_NUM_BLOCKS];
	uint32_t offset;
	uint32_t length;
};

#define TILIOC_GBLK  _IOWR('z', 100, struct tiler_block_info)
#define TILIOC_FBLK   _IOW('z', 101, struct tiler_block_info)
#define TILIOC_GSSP  _IOWR('z', 102, uint32_t)
#define TILIOC_MBLK  _IOWR('z', 103, struct tiler_block_info)
#define TILIOC_UMBLK  _IOW('z', 104, struct tiler_block_info)
#define TILIOC_QBUF  _IOWR('z', 105, struct tiler_buf_info)
#define TILIOC_RBUF  _IOWR('z', 106, struct tiler_buf_info)
#define TILIOC_URBUF _IOWR('z', 107, struct tiler_buf_info)
#define TILIOC_QBLK  _IOWR('z', 108, struct tiler_block_info)
#define TILIOC_PRBLK  _IOW('z', 109, struct tiler_block_info)
#define TILIOC_URBLK  _IOW('z', 110, uint32_t)

#endif