vgavar.h revision 1.16
1 /* $NetBSD: vgavar.h,v 1.16 2003/01/27 14:46:11 tsutsui Exp $ */ 2 3 /* 4 * Copyright (c) 1995, 1996 Carnegie-Mellon University. 5 * All rights reserved. 6 * 7 * Author: Chris G. Demetriou 8 * 9 * Permission to use, copy, modify and distribute this software and 10 * its documentation is hereby granted, provided that both the copyright 11 * notice and this permission notice appear in all copies of the 12 * software, derivative works or modified versions, and any portions 13 * thereof, and that both notices appear in supporting documentation. 14 * 15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 18 * 19 * Carnegie Mellon requests users of this software to return to 20 * 21 * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 22 * School of Computer Science 23 * Carnegie Mellon University 24 * Pittsburgh PA 15213-3890 25 * 26 * any improvements or extensions that they make and grant Carnegie the 27 * rights to redistribute these changes. 28 */ 29 30 #include <sys/callout.h> 31 32 #include "opt_vga.h" 33 34 struct vga_handle { 35 struct pcdisplay_handle vh_ph; 36 bus_space_handle_t vh_ioh_vga, vh_allmemh; 37 int vh_mono; 38 }; 39 #define vh_iot vh_ph.ph_iot 40 #define vh_memt vh_ph.ph_memt 41 #define vh_ioh_6845 vh_ph.ph_ioh_6845 42 #define vh_memh vh_ph.ph_memh 43 44 struct vga_funcs { 45 int (*vf_ioctl)(void *, u_long, caddr_t, int, struct proc *); 46 paddr_t (*vf_mmap)(void *, off_t, int); 47 }; 48 49 struct vga_config { 50 struct vga_handle hdl; 51 struct vga_softc *softc; 52 53 int nscreens; 54 LIST_HEAD(, vgascreen) screens; 55 struct vgascreen *active; /* current display */ 56 const struct wsscreen_descr *currenttype; 57 58 int vc_biosmapped; 59 bus_space_tag_t vc_biostag; 60 bus_space_handle_t vc_bioshdl; 61 62 struct vgascreen *wantedscreen; 63 void (*switchcb)(void *, int, int); 64 void *switchcbarg; 65 66 struct callout vc_switch_callout; 67 int vc_quirks; 68 int vc_type; 69 const struct vga_funcs *vc_funcs; 70 71 #ifndef VGA_RASTERCONSOLE 72 int currentfontset1, currentfontset2; 73 int vc_nfontslots; 74 struct egavga_font *vc_fonts[8]; /* currently loaded */ 75 TAILQ_HEAD(, egavga_font) vc_fontlist; /* LRU queue */ 76 #else 77 int nfonts; 78 LIST_HEAD(, vga_raster_font) vc_fontlist; 79 #endif /* !VGA_RASTERCONSOLE */ 80 }; 81 82 struct vga_softc { 83 struct device sc_dev; 84 struct vga_config *sc_vc; 85 }; 86 87 static inline u_int8_t _vga_attr_read(struct vga_handle *, int); 88 static inline void _vga_attr_write(struct vga_handle *, int, u_int8_t); 89 static inline u_int8_t _vga_ts_read(struct vga_handle *, int); 90 static inline void _vga_ts_write(struct vga_handle *, int, u_int8_t); 91 static inline u_int8_t _vga_gdc_read(struct vga_handle *, int); 92 static inline void _vga_gdc_write(struct vga_handle *, int, u_int8_t); 93 static inline u_int8_t _vga_crtc_read(struct vga_handle *, int); 94 static inline void _vga_crtc_write(struct vga_handle *, int, u_int8_t); 95 96 static inline u_int8_t 97 _vga_attr_read(struct vga_handle *vh, int reg) 98 { 99 u_int8_t res; 100 101 /* reset state */ 102 (void) bus_space_read_1(vh->vh_iot, vh->vh_ioh_6845, 10); 103 104 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_ATC_INDEX, reg); 105 res = bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, VGA_ATC_DATAR); 106 107 /* reset state XXX unneeded? */ 108 (void) bus_space_read_1(vh->vh_iot, vh->vh_ioh_6845, 10); 109 110 /* enable */ 111 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, 0, 0x20); 112 113 return (res); 114 } 115 116 static inline void 117 _vga_attr_write(struct vga_handle *vh, int reg, u_int8_t val) 118 { 119 120 /* reset state */ 121 (void) bus_space_read_1(vh->vh_iot, vh->vh_ioh_6845, 10); 122 123 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_ATC_INDEX, reg); 124 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_ATC_DATAW, val); 125 126 /* reset state XXX unneeded? */ 127 (void) bus_space_read_1(vh->vh_iot, vh->vh_ioh_6845, 10); 128 129 /* enable */ 130 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, 0, 0x20); 131 } 132 133 static inline u_int8_t 134 _vga_ts_read(struct vga_handle *vh, int reg) 135 { 136 137 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_TS_INDEX, reg); 138 return (bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, VGA_TS_DATA)); 139 } 140 141 static inline void 142 _vga_ts_write(struct vga_handle *vh, int reg, u_int8_t val) 143 { 144 145 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_TS_INDEX, reg); 146 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_TS_DATA, val); 147 } 148 149 static inline u_int8_t 150 _vga_gdc_read(struct vga_handle *vh, int reg) 151 { 152 153 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_GDC_INDEX, reg); 154 return (bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, VGA_GDC_DATA)); 155 } 156 157 static inline void 158 _vga_gdc_write(struct vga_handle *vh, int reg, u_int8_t val) 159 { 160 161 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_GDC_INDEX, reg); 162 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_GDC_DATA, val); 163 } 164 165 static inline u_int8_t 166 _vga_crtc_read(struct vga_handle *vh, int reg) 167 { 168 169 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_CRTC_INDEX, reg); 170 return (bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, VGA_CRTC_DATA)); 171 } 172 173 static inline void 174 _vga_crtc_write(struct vga_handle *vh, int reg, u_int8_t val) 175 { 176 177 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_CRTC_INDEX, reg); 178 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_CRTC_DATA, val); 179 } 180 181 #define vga_attr_read(vh, reg) \ 182 _vga_attr_read(vh, offsetof(struct reg_vgaattr, reg)) 183 #define vga_attr_write(vh, reg, val) \ 184 _vga_attr_write(vh, offsetof(struct reg_vgaattr, reg), val) 185 #define vga_ts_read(vh, reg) \ 186 _vga_ts_read(vh, offsetof(struct reg_vgats, reg)) 187 #define vga_ts_write(vh, reg, val) \ 188 _vga_ts_write(vh, offsetof(struct reg_vgats, reg), val) 189 #define vga_gdc_read(vh, reg) \ 190 _vga_gdc_read(vh, offsetof(struct reg_vgagdc, reg)) 191 #define vga_gdc_write(vh, reg, val) \ 192 _vga_gdc_write(vh, offsetof(struct reg_vgagdc, reg), val) 193 194 #define vga_6845_read(vh, reg) \ 195 pcdisplay_6845_read(&(vh)->vh_ph, reg) 196 #define vga_6845_write(vh, reg, val) \ 197 pcdisplay_6845_write(&(vh)->vh_ph, reg, val) 198 199 int vga_common_probe(bus_space_tag_t, bus_space_tag_t); 200 void vga_common_attach(struct vga_softc *, bus_space_tag_t, 201 bus_space_tag_t, int, int, const struct vga_funcs *); 202 #define VGA_QUIRK_ONEFONT 0x01 203 #define VGA_QUIRK_NOFASTSCROLL 0x02 204 int vga_is_console(bus_space_tag_t, int); 205 206 int vga_cnattach(bus_space_tag_t, bus_space_tag_t, int, int); 207 208 #ifndef VGA_RASTERCONSOLE 209 struct wsscreen_descr; 210 void vga_loadchars(struct vga_handle *, int, int, int, int, char *); 211 void vga_readoutchars(struct vga_handle *, int, int, int, int, char *); 212 #ifdef VGA_CONSOLE_ATI_BROKEN_FONTSEL 213 void vga_copyfont01(struct vga_handle *); 214 #endif 215 void vga_setfontset(struct vga_handle *, int, int); 216 void vga_setscreentype(struct vga_handle *, const struct wsscreen_descr *); 217 #else /* !VGA_RASTERCONSOLE */ 218 void vga_load_builtinfont(struct vga_handle *, u_int8_t *, int, int); 219 #endif /* !VGA_RASTERCONSOLE */ 220
Indexes created Mon Sep 29 21:09:56 GMT 2025