Annotation of sys/dev/ic/pcdisplayvar.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: pcdisplayvar.h,v 1.9 2007/02/11 20:29:22 miod Exp $ */
! 2: /* $NetBSD: pcdisplayvar.h,v 1.8 2000/01/25 02:44:03 ad Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1998
! 6: * Matthias Drochner. All rights reserved.
! 7: *
! 8: * Redistribution and use in source and binary forms, with or without
! 9: * modification, are permitted provided that the following conditions
! 10: * are met:
! 11: * 1. Redistributions of source code must retain the above copyright
! 12: * notice, this list of conditions and the following disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: *
! 17: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 18: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 19: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 20: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 21: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 22: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 23: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 24: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 25: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 26: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 27: *
! 28: */
! 29:
! 30: struct pcdisplayscreen {
! 31: struct pcdisplay_handle *hdl;
! 32:
! 33: const struct wsscreen_descr *type;
! 34:
! 35: int active; /* currently displayed */
! 36: u_int16_t *mem; /* backing store for contents */
! 37:
! 38: int cursoron; /* cursor displayed? */
! 39: #ifdef PCDISPLAY_SOFTCURSOR
! 40: int cursortmp; /* glyph & attribute behind software cursor */
! 41: #endif
! 42: int vc_ccol, vc_crow; /* current cursor position */
! 43:
! 44: int dispoffset; /* offset of displayed area in video mem */
! 45: int visibleoffset;
! 46: };
! 47:
! 48: struct pcdisplay_handle {
! 49: bus_space_tag_t ph_iot, ph_memt;
! 50: bus_space_handle_t ph_ioh_6845, ph_memh;
! 51: };
! 52:
! 53: static inline u_int8_t _pcdisplay_6845_read(struct pcdisplay_handle *,
! 54: int);
! 55: static inline void _pcdisplay_6845_write(struct pcdisplay_handle *,
! 56: int, u_int8_t);
! 57:
! 58: static inline u_int8_t _pcdisplay_6845_read(ph, reg)
! 59: struct pcdisplay_handle *ph;
! 60: int reg;
! 61: {
! 62: bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_INDEX, reg);
! 63: return (bus_space_read_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_DATA));
! 64: }
! 65:
! 66: static inline void _pcdisplay_6845_write(ph, reg, val)
! 67: struct pcdisplay_handle *ph;
! 68: int reg;
! 69: u_int8_t val;
! 70: {
! 71: bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_INDEX, reg);
! 72: bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_DATA, val);
! 73: }
! 74:
! 75: #define pcdisplay_6845_read(ph, reg) \
! 76: _pcdisplay_6845_read(ph, offsetof(struct reg_mc6845, reg))
! 77: #define pcdisplay_6845_write(ph, reg, val) \
! 78: _pcdisplay_6845_write(ph, offsetof(struct reg_mc6845, reg), val)
! 79:
! 80: void pcdisplay_cursor_init(struct pcdisplayscreen *, int);
! 81: void pcdisplay_cursor_reset(struct pcdisplayscreen *);
! 82: void pcdisplay_cursor(void *, int, int, int);
! 83: #if 0
! 84: unsigned int pcdisplay_mapchar_simple(void *, int);
! 85: #endif
! 86: int pcdisplay_mapchar(void *, int, unsigned int *);
! 87: void pcdisplay_putchar(void *, int, int, u_int, long);
! 88: struct wsdisplay_charcell;
! 89: int pcdisplay_getchar(void *, int, int, struct wsdisplay_charcell *);
! 90: void pcdisplay_copycols(void *, int, int, int,int);
! 91: void pcdisplay_erasecols(void *, int, int, int, long);
! 92: void pcdisplay_copyrows(void *, int, int, int);
! 93: void pcdisplay_eraserows(void *, int, int, long);
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