1 /* $NetBSD: igsfbvar.h,v 1.1 2002/03/30 19:48:55 uwe Exp $ */ 2 3 /* 4 * Copyright (c) 2002 Valeriy E. Ushakov 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 /* 31 * Integraphics Systems IGA 1682 and (untested) CyberPro 2k. 32 */ 33 #ifndef _DEV_IC_IGSFBVAR_H_ 34 #define _DEV_IC_IGSFBVAR_H_ 35 36 37 #define IGS_CMAP_SIZE 256 /* 256 R/G/B entries */ 38 struct igs_hwcmap { 39 u_int8_t r[IGS_CMAP_SIZE]; 40 u_int8_t g[IGS_CMAP_SIZE]; 41 u_int8_t b[IGS_CMAP_SIZE]; 42 }; 43 44 45 #define IGS_CURSOR_MAX_SIZE 64 /* 64x64 sprite */ 46 struct igs_hwcursor { 47 struct wsdisplay_curpos cc_pos; 48 struct wsdisplay_curpos cc_hot; 49 struct wsdisplay_curpos cc_size; 50 u_int8_t cc_image[512]; /* save copy of image for GCURSOR */ 51 u_int8_t cc_mask[512]; /* save copy of mask for GCURSOR */ 52 u_int16_t cc_sprite[512]; /* sprite in device 2bpp format */ 53 u_int8_t cc_color[6]; /* 2 colors, 3 rgb components */ 54 }; 55 56 57 /* 58 * Precomputed bit tables to convert 1bpp image/mask to 2bpp hw cursor 59 * sprite. For IGSFB_HW_BSWAP attachments they are pre-bswapped as well. 60 */ 61 struct igs_bittab { 62 u_int16_t iexpand[256]; /* image: 0 -> 00, 1 -> 01 */ 63 u_int16_t mexpand[256]; /* mask: 0 -> 00, 1 -> 11 */ 64 }; 65 66 struct igsfb_softc { 67 struct device sc_dev; 68 69 /* io registers */ 70 bus_space_tag_t sc_iot; 71 bus_space_handle_t sc_ioh; 72 73 /* linear memory */ 74 bus_space_tag_t sc_memt; 75 bus_addr_t sc_memaddr; /* memory phys addr */ 76 bus_size_t sc_memsz; /* size of linear address space */ 77 int sc_memflags; 78 79 /* fb part actually mapped for wsdisplay */ 80 bus_space_handle_t sc_fbh; 81 bus_size_t sc_fbsz; 82 83 /* 1k of cursor sprite data */ 84 bus_space_handle_t sc_crh; 85 86 /* 87 * graphic coprocessor can be accessed either via i/o space or 88 * via memory-mapped i/o access through memory space. 89 */ 90 bus_space_tag_t sc_copt; 91 bus_space_handle_t sc_coph; 92 93 /* IGA1682 vs CyberPro 2k (use version num. for finer distinction?) */ 94 int sc_is2k; 95 96 /* flags that control driver operation */ 97 int sc_hwflags; 98 99 struct rasops_info *sc_ri; 100 101 struct igs_hwcmap sc_cmap; /* software copy of colormap */ 102 struct igs_hwcursor sc_cursor; /* software copy of cursor sprite */ 103 104 /* precomputed bit tables for cursor sprite 1bpp -> 2bpp conversion */ 105 struct igs_bittab *sc_bittab; 106 107 int nscreens; 108 109 int sc_blanked; /* screen is currently blanked */ 110 int sc_curenb; /* cursor sprite enabled */ 111 }; 112 113 /* sc_hwflags */ 114 #define IGSFB_HW_BSWAP 1 /* endianness mismatch */ 115 116 117 /* methods for bus attachment glue */ 118 int igsfb_io_enable(bus_space_tag_t, bus_addr_t); 119 void igsfb_mem_enable(struct igsfb_softc *); 120 void igsfb_common_attach(struct igsfb_softc *, int); 121 122 #endif /* _DEV_IC_IGSFBVAR_H_ */ 123