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/*
* Copyright (c) 2013 Kenji Aoyama
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* Helper macros
*/
#define W(addr) ((u_int32_t *)(addr))
#define R(addr) ((u_int32_t *)((u_int8_t *)(addr) + 0x40000))
#define P0(addr) ((u_int32_t *)((u_int8_t *)(addr) + 0x40000))
#define P1(addr) ((u_int32_t *)((u_int8_t *)(addr) + 0x80000))
#define P2(addr) ((u_int32_t *)((u_int8_t *)(addr) + 0xC0000))
#define P3(addr) ((u_int32_t *)((u_int8_t *)(addr) + 0x100000))
/*
* Replacement Rules (rops) (derived from hp300)
*/
#define RR_CLEAR 0x0
#define RR_COPY 0x3
/*
* ROP function
*
* LUNA's frame buffer uses Hitach HM53462 video RAM, which has raster
* (logic) operation, or ROP, function. To use ROP function on LUNA, write
* a 32bit `mask' value to the specified address corresponding to each ROP
* logic.
*
* D: the data writing to the video RAM
* M: the data already stored on the video RAM
*/
/* operation index the video RAM contents will be */
#define ROP_ZERO 0 /* all 0 */
#define ROP_AND1 1 /* D & M */
#define ROP_AND2 2 /* ~D & M */
/* Not used on LUNA 3 */
#define ROP_AND3 4 /* D & ~M */
#define ROP_THROUGH 5 /* D */
#define ROP_EOR 6 /* (~D & M) | (D & ~M) */
#define ROP_OR1 7 /* D | M */
#define ROP_NOR 8 /* ~D | ~M */
#define ROP_ENOR 9 /* (D & M) | (~D & ~M) */
#define ROP_INV1 10 /* ~D */
#define ROP_OR2 11 /* ~D | M */
#define ROP_INV2 12 /* ~M */
#define ROP_OR3 13 /* D | ~M */
#define ROP_NAND 14 /* ~D | ~M */
#define ROP_ONE 15 /* all 1 */
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