/* $NetBSD: vgavar.h,v 1.33 2015/01/14 17:45:27 chs Exp $ */ /* * Copyright (c) 1995, 1996 Carnegie-Mellon University. * All rights reserved. * * Author: Chris G. Demetriou * * Permission to use, copy, modify and distribute this software and * its documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie the * rights to redistribute these changes. */ #include #ifdef _KERNEL_OPT #include "opt_vga.h" #endif struct vga_handle { struct pcdisplay_handle vh_ph; bus_space_handle_t vh_ioh_vga, vh_allmemh; int vh_mono; }; #define vh_iot vh_ph.ph_iot #define vh_memt vh_ph.ph_memt #define vh_ioh_6845 vh_ph.ph_ioh_6845 #define vh_memh vh_ph.ph_memh struct vga_funcs { int (*vf_ioctl)(void *, u_long, void *, int, struct lwp *); paddr_t (*vf_mmap)(void *, off_t, int); }; struct vga_config { struct vga_handle hdl; struct vga_softc *softc; int nscreens; LIST_HEAD(, vgascreen) screens; struct vgascreen *active; /* current display */ const struct wsscreen_descr *currenttype; struct vgascreen *wantedscreen; void (*switchcb)(void *, int, int); void *switchcbarg; struct callout vc_switch_callout; int vc_quirks; int vc_type; const struct vga_funcs *vc_funcs; u_int8_t palette[256 * 3]; #ifndef VGA_RASTERCONSOLE int currentfontset1, currentfontset2; int vc_nfontslots; struct egavga_font *vc_fonts[8]; /* currently loaded */ TAILQ_HEAD(, egavga_font) vc_fontlist; /* LRU queue */ #else int nfonts; LIST_HEAD(, vga_raster_font) vc_fontlist; #endif /* !VGA_RASTERCONSOLE */ }; struct vga_softc { device_t sc_dev; struct vga_config *sc_vc; }; static __inline u_int8_t _vga_attr_read(struct vga_handle *, int); static __inline void _vga_attr_write(struct vga_handle *, int, u_int8_t); static __inline u_int8_t _vga_ts_read(struct vga_handle *, int); static __inline void _vga_ts_write(struct vga_handle *, int, u_int8_t); static __inline u_int8_t _vga_gdc_read(struct vga_handle *, int); static __inline void _vga_gdc_write(struct vga_handle *, int, u_int8_t); #define vga_raw_read(vh, reg) \ bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, reg) #define vga_raw_write(vh, reg, value) \ bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, reg, value) #define vga_enable(vh) \ vga_raw_write(vh, 0, 0x20) #define vga_reset_state(vh) \ (void) bus_space_read_1(vh->vh_iot, vh->vh_ioh_6845, 10) static __inline u_int8_t _vga_attr_read(struct vga_handle *vh, int reg) { u_int8_t res; /* reset state */ vga_reset_state(vh); vga_raw_write(vh, VGA_ATC_INDEX, reg); res = vga_raw_read(vh, VGA_ATC_DATAR); /* XXX unneeded? */ vga_reset_state(vh); vga_enable(vh); return res; } static __inline void _vga_attr_write(struct vga_handle *vh, int reg, u_int8_t val) { vga_reset_state(vh); vga_raw_write(vh, VGA_ATC_INDEX, reg); vga_raw_write(vh, VGA_ATC_DATAW, val); /* XXX unneeded? */ vga_reset_state(vh); vga_enable(vh); } static __inline u_int8_t _vga_ts_read(struct vga_handle *vh, int reg) { vga_raw_write(vh, VGA_TS_INDEX, reg); return vga_raw_read(vh, VGA_TS_DATA); } static __inline void _vga_ts_write(struct vga_handle *vh, int reg, u_int8_t val) { vga_raw_write(vh, VGA_TS_INDEX, reg); vga_raw_write(vh, VGA_TS_DATA, val); } static __inline u_int8_t _vga_gdc_read(struct vga_handle *vh, int reg) { vga_raw_write(vh, VGA_GDC_INDEX, reg); return vga_raw_read(vh, VGA_GDC_DATA); } static __inline void _vga_gdc_write(struct vga_handle *vh, int reg, u_int8_t val) { vga_raw_write(vh, VGA_GDC_INDEX, reg); vga_raw_write(vh, VGA_GDC_DATA, val); } #define vga_attr_read(vh, reg) \ _vga_attr_read(vh, offsetof(struct reg_vgaattr, reg)) #define vga_attr_write(vh, reg, val) \ _vga_attr_write(vh, offsetof(struct reg_vgaattr, reg), val) #define vga_ts_read(vh, reg) \ _vga_ts_read(vh, offsetof(struct reg_vgats, reg)) #define vga_ts_write(vh, reg, val) \ _vga_ts_write(vh, offsetof(struct reg_vgats, reg), val) #define vga_gdc_read(vh, reg) \ _vga_gdc_read(vh, offsetof(struct reg_vgagdc, reg)) #define vga_gdc_write(vh, reg, val) \ _vga_gdc_write(vh, offsetof(struct reg_vgagdc, reg), val) #define vga_6845_read(vh, reg) \ pcdisplay_6845_read(&(vh)->vh_ph, reg) #define vga_6845_write(vh, reg, val) \ pcdisplay_6845_write(&(vh)->vh_ph, reg, val) #define _vga_6845_read(vh, reg) \ _pcdisplay_6845_read(&(vh)->vh_ph, reg) #define _vga_6845_write(vh, reg, val) \ _pcdisplay_6845_write(&(vh)->vh_ph, reg, val) int vga_common_probe(bus_space_tag_t, bus_space_tag_t); void vga_common_attach(struct vga_softc *, bus_space_tag_t, bus_space_tag_t, int, int, const struct vga_funcs *); #define VGA_QUIRK_ONEFONT 0x01 #define VGA_QUIRK_NOFASTSCROLL 0x02 int vga_is_console(bus_space_tag_t, int); int vga_cnattach(bus_space_tag_t, bus_space_tag_t, int, int); int vga_cndetach(void); void vga_resume(struct vga_softc *); #ifndef VGA_RASTERCONSOLE struct wsscreen_descr; void vga_loadchars(struct vga_handle *, int, int, int, int, const char *); void vga_readoutchars(struct vga_handle *, int, int, int, int, char *); #ifdef VGA_CONSOLE_ATI_BROKEN_FONTSEL void vga_copyfont01(struct vga_handle *); #endif void vga_setfontset(struct vga_handle *, int, int); void vga_setscreentype(struct vga_handle *, const struct wsscreen_descr *); #else /* !VGA_RASTERCONSOLE */ void vga_load_builtinfont(struct vga_handle *, u_int8_t *, int, int); #endif /* !VGA_RASTERCONSOLE */ void vga_reset(struct vga_handle *, void (*)(struct vga_handle *)); void vga_initregs(struct vga_handle *); extern int vga_no_builtinfont;