/* $NetBSD: sticreg.h,v 1.8 2008/04/28 20:23:58 martin Exp $ */ /*- * Copyright (c) 1999, 2000, 2001 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Andrew Doran. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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 _TC_STICREG_H_ #define _TC_STICREG_H_ /* * PixelStamp command packets take this general format: * * command word * plane mask & primitive count * always zero * update method * * per-packet context (optional): * line width * xy mask * cliping rectangle min & max * rgb constant * z constant * * per-primitive context (optional): * xy mask * xy mask address * primitive data (vertices, spans info, video) * line width * halfspace equals conditions * rgb flat, or rgb{1,2,3} smooth * z flat, or z{1,2,3} smooth */ /* * Command word. */ /* Base command */ #define STAMP_CMD_POINTS (0x0000) #define STAMP_CMD_LINES (0x0001) #define STAMP_CMD_TRIANGLES (0x0002) #define STAMP_CMD_COPYSPANS (0x0005) #define STAMP_CMD_READSPANS (0x0006) #define STAMP_CMD_WRITESPANS (0x0007) #define STAMP_CMD_VIDEO (0x0008) /* Color */ #define STAMP_RGB_NONE (0x0000) #define STAMP_RGB_CONST (0x0010) #define STAMP_RGB_FLAT (0x0020) #define STAMP_RGB_SMOOTH (0x0030) /* Z */ #define STAMP_Z_NONE (0x0000) #define STAMP_Z_CONST (0x0040) #define STAMP_Z_FLAT (0x0080) #define STAMP_Z_SMOOTH (0x00c0) /* XYMASK */ #define STAMP_XY_NONE (0x0000) #define STAMP_XY_PERPACKET (0x0100) #define STAMP_XY_PERPRIMATIVE (0x0200) /* Line width */ #define STAMP_LW_NONE (0x0000) #define STAMP_LW_PERPACKET (0x0400) #define STAMP_LW_PERPRIMATIVE (0x0800) /* Miscellaneous flags */ #define STAMP_CLIPRECT (0x00080000) #define STAMP_MESH (0x00200000) #define STAMP_AALINE (0x00800000) #define STAMP_HS_EQUALS (0x80000000) /* * Update word. */ /* XXX What does this do? Perhaps for 96-bit boards? */ #define STAMP_PLANE_8X3 (0 << 5) #define STAMP_PLANE_24 (1 << 5) /* Write enable */ #define STAMP_WE_SIGN (0x04 << 8) #define STAMP_WE_XYMASK (0x02 << 8) #define STAMP_WE_CLIPRECT (0x01 << 8) #define STAMP_WE_NONE (0x00 << 8) /* Pixel write method */ #define STAMP_METHOD_CLEAR (0x60 << 12) #define STAMP_METHOD_AND (0x14 << 12) #define STAMP_METHOD_ANDREV (0x15 << 12) #define STAMP_METHOD_COPY (0x20 << 12) #define STAMP_METHOD_ANDINV (0x16 << 12) #define STAMP_METHOD_NOOP (0x40 << 12) #define STAMP_METHOD_XOR (0x11 << 12) #define STAMP_METHOD_OR (0x0f << 12) #define STAMP_METHOD_NOR (0x17 << 12) #define STAMP_METHOD_EQUIV (0x10 << 12) #define STAMP_METHOD_INV (0x4e << 12) #define STAMP_METHOD_ORREV (0x0e << 12) #define STAMP_METHOD_COPYINV (0x2d << 12) #define STAMP_METHOD_ORINV (0x0d << 12) #define STAMP_METHOD_NAND (0x0c << 12) #define STAMP_METHOD_SET (0x6c << 12) #define STAMP_METHOD_SUM (0x00 << 12) #define STAMP_METHOD_DIFF (0x02 << 12) #define STAMP_METHOD_REVDIFF (0x01 << 12) /* Double buffering */ #define STAMP_DB_NONE (0x00 << 28) #define STAMP_DB_01 (0x01 << 28) #define STAMP_DB_12 (0x02 << 28) #define STAMP_DB_02 (0x04 << 28) /* Miscellaneous flags */ #define STAMP_UPDATE_ENABLE (1 << 0) #define STAMP_SAVE_SIGN (1 << 6) #define STAMP_SAVE_ALPHA (1 << 7) #define STAMP_SUPERSAMPLE (1 << 11) #define STAMP_SPAN (1 << 19) #define STAMP_COPYSPAN_ALIGNED (1 << 20) #define STAMP_MINMAX (1 << 21) #define STAMP_MULT (1 << 22) #define STAMP_MULTACC (1 << 23) #define STAMP_HALF_BUFF (1 << 27) #define STAMP_INITIALIZE (1 << 31) /* * XYMASK address calculation. */ #define XMASKADDR(sw, sx, a) (((a)-((sx) % (sw))) & 15) #define YMASKADDR(shm, sy, b) (((b)-((sy) & (shm))) & 15) #define XYMASKADDR(sw,shm,x,y,a,b) \ (XMASKADDR(sw,x,a) << 16 | YMASKADDR(shm,y,b)) /* * Miscellenous constants. */ #define STIC_MAGIC_X 370 #define STIC_MAGIC_Y 37 /* * Poll register magic values. */ #define STAMP_OK (0) #define STAMP_BUSY (1) #define STAMP_RETRIES (100000) #define STAMP_DELAY (10) /* * STIC registers. */ struct stic_regs { u_int32_t sr_pad0; u_int32_t sr_pad1; u_int32_t sr_hsync; u_int32_t sr_hsync2; u_int32_t sr_hblank; u_int32_t sr_vsync; u_int32_t sr_vblank; u_int32_t sr_vtest; u_int32_t sr_ipdvint; u_int32_t sr_pad2; u_int32_t sr_sticsr; u_int32_t sr_busdat; u_int32_t sr_busadr; u_int32_t sr_pad3; u_int32_t sr_buscsr; u_int32_t sr_modcl; } __attribute__ ((__packed__)); /* * Bit definitions for stic_regs::sticsr. */ #define STIC_CSR_TSTFNC 0x00000003 # define STIC_CSR_TSTFNC_NORMAL 0 # define STIC_CSR_TSTFNC_PARITY 1 # define STIC_CSR_TSTFNC_CNTPIX 2 # define STIC_CSR_TSTFNC_TSTDAC 3 #define STIC_CSR_CHECKPAR 0x00000004 #define STIC_CSR_STARTVT 0x00000010 #define STIC_CSR_START 0x00000020 #define STIC_CSR_RESET 0x00000040 #define STIC_CSR_STARTST 0x00000080 /* * Bit definitions for stic_regs::int. Three four-bit wide fields, for * error (E), vertical-blank (V), and packet-done (P) intererupts, * respectively. The low-order three bits of each field are interrupt * enable, condition flagged, and nybble write enable. The top bit of each * field is unused. */ #define STIC_INT_E_EN 0x00000001 #define STIC_INT_E 0x00000002 #define STIC_INT_E_WE 0x00000004 #define STIC_INT_V_EN 0x00000100 #define STIC_INT_V 0x00000200 #define STIC_INT_V_WE 0x00000400 #define STIC_INT_P_EN 0x00010000 #define STIC_INT_P 0x00020000 #define STIC_INT_P_WE 0x00040000 #define STIC_INT_E_MASK (STIC_INT_E_EN | STIC_INT_E | STIC_INT_E_WE) #define STIC_INT_V_MASK (STIC_INT_V_EN | STIC_INT_V | STIC_INT_V_WE) #define STIC_INT_P_MASK (STIC_INT_P_EN | STIC_INT_P | STIC_INT_P_WE) #define STIC_INT_MASK (STIC_INT_E_MASK | STIC_INT_P_MASK | STIC_INT_V_MASK) #define STIC_INT_WE (STIC_INT_E_WE | STIC_INT_V_WE | STIC_INT_P_WE) #define STIC_INT_CLR (STIC_INT_E_EN | STIC_INT_V_EN | STIC_INT_P_EN) /* * On DMA: reading from a STIC poll register causes load & execution of * the packet at the correspoinding physical address. Either STAMP_OK * or STAMP_BUSY will be returned to indicate status. * * The STIC sees only 23-bits (8MB) of address space. Bits 21-22 in * physical address space map to bits 27-28, and bits 15-20 map to bits * 18-23 in the STIC's warped view of the word. On the PXG, the STIC * sees only the onboard SRAM (so any `physical addresses' are offsets * into the beginning of the SRAM). */ #endif /* _TC_STICREG_H_ */