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/* $OpenBSD: vgavar.h,v 1.4 2000/11/15 20:17:38 aaron Exp $ */
/* $NetBSD: vgavar.h,v 1.4 2000/06/17 07:11:50 soda 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.
*/
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
static inline u_int8_t _vga_attr_read __P((struct vga_handle *, int));
static inline void _vga_attr_write __P((struct vga_handle *, int, u_int8_t));
static inline u_int8_t _vga_ts_read __P((struct vga_handle *, int));
static inline void _vga_ts_write __P((struct vga_handle *, int, u_int8_t));
static inline u_int8_t _vga_gdc_read __P((struct vga_handle *, int));
static inline void _vga_gdc_write __P((struct vga_handle *, int, u_int8_t));
static inline u_int8_t _vga_attr_read(vh, reg)
struct vga_handle *vh;
int reg;
{
u_int8_t res;
/* reset state */
(void) bus_space_read_1(vh->vh_iot, vh->vh_ioh_6845, 10);
bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_ATC_INDEX, reg);
res = bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, VGA_ATC_DATAR);
/* reset state XXX unneeded? */
(void) bus_space_read_1(vh->vh_iot, vh->vh_ioh_6845, 10);
/* enable */
bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, 0, 0x20);
return (res);
}
static inline void _vga_attr_write(vh, reg, val)
struct vga_handle *vh;
int reg;
u_int8_t val;
{
/* reset state */
(void) bus_space_read_1(vh->vh_iot, vh->vh_ioh_6845, 10);
bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_ATC_INDEX, reg);
bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_ATC_DATAW, val);
/* reset state XXX unneeded? */
(void) bus_space_read_1(vh->vh_iot, vh->vh_ioh_6845, 10);
/* enable */
bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, 0, 0x20);
}
static inline u_int8_t _vga_ts_read(vh, reg)
struct vga_handle *vh;
int reg;
{
bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_TS_INDEX, reg);
return (bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, VGA_TS_DATA));
}
static inline void _vga_ts_write(vh, reg, val)
struct vga_handle *vh;
int reg;
u_int8_t val;
{
bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_TS_INDEX, reg);
bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_TS_DATA, val);
}
static inline u_int8_t _vga_gdc_read(vh, reg)
struct vga_handle *vh;
int reg;
{
bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_GDC_INDEX, reg);
return (bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, VGA_GDC_DATA));
}
static inline void _vga_gdc_write(vh, reg, val)
struct vga_handle *vh;
int reg;
u_int8_t val;
{
bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_GDC_INDEX, reg);
bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, 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)
int vga_common_probe __P((bus_space_tag_t, bus_space_tag_t));
void vga_common_attach __P((struct device *, bus_space_tag_t,
bus_space_tag_t, int));
#ifdef arc
void vga_extended_attach __P((struct device *, bus_space_tag_t,
bus_space_tag_t, int,
int (*) __P((void *, off_t, int))));
#endif
int vga_is_console __P((bus_space_tag_t, int));
int vga_cnattach __P((bus_space_tag_t, bus_space_tag_t, int, int));
struct wsscreen_descr;
void vga_loadchars __P((struct vga_handle *, int, int, int, int, char *));
void vga_setfontset __P((struct vga_handle *, int, int));
void vga_setscreentype __P((struct vga_handle *,
const struct wsscreen_descr *));
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