253 lines
7.7 KiB
C
253 lines
7.7 KiB
C
/* $NetBSD: sticreg.h,v 1.9 2008/09/08 23:36:54 gmcgarry Exp $ */
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/*-
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* Copyright (c) 1999, 2000, 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Andrew Doran.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _TC_STICREG_H_
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#define _TC_STICREG_H_
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/*
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* PixelStamp command packets take this general format:
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*
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* command word
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* plane mask & primitive count
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* always zero
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* update method
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*
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* per-packet context (optional):
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* line width
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* xy mask
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* cliping rectangle min & max
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* rgb constant
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* z constant
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*
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* per-primitive context (optional):
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* xy mask
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* xy mask address
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* primitive data (vertices, spans info, video)
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* line width
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* halfspace equals conditions
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* rgb flat, or rgb{1,2,3} smooth
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* z flat, or z{1,2,3} smooth
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*/
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/*
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* Command word.
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*/
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/* Base command */
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#define STAMP_CMD_POINTS (0x0000)
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#define STAMP_CMD_LINES (0x0001)
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#define STAMP_CMD_TRIANGLES (0x0002)
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#define STAMP_CMD_COPYSPANS (0x0005)
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#define STAMP_CMD_READSPANS (0x0006)
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#define STAMP_CMD_WRITESPANS (0x0007)
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#define STAMP_CMD_VIDEO (0x0008)
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/* Color */
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#define STAMP_RGB_NONE (0x0000)
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#define STAMP_RGB_CONST (0x0010)
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#define STAMP_RGB_FLAT (0x0020)
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#define STAMP_RGB_SMOOTH (0x0030)
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/* Z */
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#define STAMP_Z_NONE (0x0000)
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#define STAMP_Z_CONST (0x0040)
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#define STAMP_Z_FLAT (0x0080)
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#define STAMP_Z_SMOOTH (0x00c0)
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/* XYMASK */
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#define STAMP_XY_NONE (0x0000)
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#define STAMP_XY_PERPACKET (0x0100)
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#define STAMP_XY_PERPRIMATIVE (0x0200)
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/* Line width */
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#define STAMP_LW_NONE (0x0000)
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#define STAMP_LW_PERPACKET (0x0400)
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#define STAMP_LW_PERPRIMATIVE (0x0800)
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/* Miscellaneous flags */
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#define STAMP_CLIPRECT (0x00080000)
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#define STAMP_MESH (0x00200000)
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#define STAMP_AALINE (0x00800000)
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#define STAMP_HS_EQUALS (0x80000000)
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/*
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* Update word.
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*/
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/* XXX What does this do? Perhaps for 96-bit boards? */
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#define STAMP_PLANE_8X3 (0 << 5)
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#define STAMP_PLANE_24 (1 << 5)
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/* Write enable */
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#define STAMP_WE_SIGN (0x04 << 8)
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#define STAMP_WE_XYMASK (0x02 << 8)
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#define STAMP_WE_CLIPRECT (0x01 << 8)
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#define STAMP_WE_NONE (0x00 << 8)
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/* Pixel write method */
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#define STAMP_METHOD_CLEAR (0x60 << 12)
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#define STAMP_METHOD_AND (0x14 << 12)
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#define STAMP_METHOD_ANDREV (0x15 << 12)
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#define STAMP_METHOD_COPY (0x20 << 12)
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#define STAMP_METHOD_ANDINV (0x16 << 12)
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#define STAMP_METHOD_NOOP (0x40 << 12)
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#define STAMP_METHOD_XOR (0x11 << 12)
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#define STAMP_METHOD_OR (0x0f << 12)
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#define STAMP_METHOD_NOR (0x17 << 12)
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#define STAMP_METHOD_EQUIV (0x10 << 12)
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#define STAMP_METHOD_INV (0x4e << 12)
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#define STAMP_METHOD_ORREV (0x0e << 12)
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#define STAMP_METHOD_COPYINV (0x2d << 12)
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#define STAMP_METHOD_ORINV (0x0d << 12)
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#define STAMP_METHOD_NAND (0x0c << 12)
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#define STAMP_METHOD_SET (0x6c << 12)
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#define STAMP_METHOD_SUM (0x00 << 12)
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#define STAMP_METHOD_DIFF (0x02 << 12)
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#define STAMP_METHOD_REVDIFF (0x01 << 12)
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/* Double buffering */
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#define STAMP_DB_NONE (0x00 << 28)
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#define STAMP_DB_01 (0x01 << 28)
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#define STAMP_DB_12 (0x02 << 28)
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#define STAMP_DB_02 (0x04 << 28)
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/* Miscellaneous flags */
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#define STAMP_UPDATE_ENABLE (1 << 0)
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#define STAMP_SAVE_SIGN (1 << 6)
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#define STAMP_SAVE_ALPHA (1 << 7)
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#define STAMP_SUPERSAMPLE (1 << 11)
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#define STAMP_SPAN (1 << 19)
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#define STAMP_COPYSPAN_ALIGNED (1 << 20)
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#define STAMP_MINMAX (1 << 21)
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#define STAMP_MULT (1 << 22)
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#define STAMP_MULTACC (1 << 23)
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#define STAMP_HALF_BUFF (1 << 27)
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#define STAMP_INITIALIZE (1 << 31)
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/*
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* XYMASK address calculation.
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*/
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#define XMASKADDR(sw, sx, a) (((a)-((sx) % (sw))) & 15)
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#define YMASKADDR(shm, sy, b) (((b)-((sy) & (shm))) & 15)
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#define XYMASKADDR(sw,shm,x,y,a,b) \
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(XMASKADDR(sw,x,a) << 16 | YMASKADDR(shm,y,b))
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/*
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* Miscellenous constants.
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*/
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#define STIC_MAGIC_X 370
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#define STIC_MAGIC_Y 37
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/*
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* Poll register magic values.
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*/
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#define STAMP_OK (0)
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#define STAMP_BUSY (1)
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#define STAMP_RETRIES (100000)
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#define STAMP_DELAY (10)
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/*
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* STIC registers.
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*/
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struct stic_regs {
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u_int32_t sr_pad0;
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u_int32_t sr_pad1;
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u_int32_t sr_hsync;
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u_int32_t sr_hsync2;
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u_int32_t sr_hblank;
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u_int32_t sr_vsync;
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u_int32_t sr_vblank;
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u_int32_t sr_vtest;
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u_int32_t sr_ipdvint;
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u_int32_t sr_pad2;
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u_int32_t sr_sticsr;
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u_int32_t sr_busdat;
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u_int32_t sr_busadr;
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u_int32_t sr_pad3;
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u_int32_t sr_buscsr;
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u_int32_t sr_modcl;
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} __packed;
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/*
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* Bit definitions for stic_regs::sticsr.
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*/
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#define STIC_CSR_TSTFNC 0x00000003
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# define STIC_CSR_TSTFNC_NORMAL 0
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# define STIC_CSR_TSTFNC_PARITY 1
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# define STIC_CSR_TSTFNC_CNTPIX 2
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# define STIC_CSR_TSTFNC_TSTDAC 3
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#define STIC_CSR_CHECKPAR 0x00000004
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#define STIC_CSR_STARTVT 0x00000010
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#define STIC_CSR_START 0x00000020
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#define STIC_CSR_RESET 0x00000040
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#define STIC_CSR_STARTST 0x00000080
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/*
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* Bit definitions for stic_regs::int. Three four-bit wide fields, for
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* error (E), vertical-blank (V), and packet-done (P) intererupts,
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* respectively. The low-order three bits of each field are interrupt
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* enable, condition flagged, and nybble write enable. The top bit of each
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* field is unused.
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*/
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#define STIC_INT_E_EN 0x00000001
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#define STIC_INT_E 0x00000002
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#define STIC_INT_E_WE 0x00000004
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#define STIC_INT_V_EN 0x00000100
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#define STIC_INT_V 0x00000200
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#define STIC_INT_V_WE 0x00000400
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#define STIC_INT_P_EN 0x00010000
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#define STIC_INT_P 0x00020000
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#define STIC_INT_P_WE 0x00040000
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#define STIC_INT_E_MASK (STIC_INT_E_EN | STIC_INT_E | STIC_INT_E_WE)
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#define STIC_INT_V_MASK (STIC_INT_V_EN | STIC_INT_V | STIC_INT_V_WE)
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#define STIC_INT_P_MASK (STIC_INT_P_EN | STIC_INT_P | STIC_INT_P_WE)
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#define STIC_INT_MASK (STIC_INT_E_MASK | STIC_INT_P_MASK | STIC_INT_V_MASK)
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#define STIC_INT_WE (STIC_INT_E_WE | STIC_INT_V_WE | STIC_INT_P_WE)
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#define STIC_INT_CLR (STIC_INT_E_EN | STIC_INT_V_EN | STIC_INT_P_EN)
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/*
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* On DMA: reading from a STIC poll register causes load & execution of
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* the packet at the correspoinding physical address. Either STAMP_OK
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* or STAMP_BUSY will be returned to indicate status.
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*
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* The STIC sees only 23-bits (8MB) of address space. Bits 21-22 in
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* physical address space map to bits 27-28, and bits 15-20 map to bits
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* 18-23 in the STIC's warped view of the word. On the PXG, the STIC
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* sees only the onboard SRAM (so any `physical addresses' are offsets
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* into the beginning of the SRAM).
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*/
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#endif /* _TC_STICREG_H_ */
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