462ded3729
OpenFirmware. Not at all optimized, but provides a PC-style user-experience. Tested on revA imac, B&W G3, 2k iBook, and G4 eMac.
695 lines
15 KiB
C
695 lines
15 KiB
C
/*-
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* Copyright (c) 2003 Peter Grehan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/limits.h>
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#include <sys/conf.h>
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#include <sys/cons.h>
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#include <sys/proc.h>
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#include <sys/fcntl.h>
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#include <sys/malloc.h>
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#include <sys/fbio.h>
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#include <sys/consio.h>
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#include <machine/bus.h>
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#include <machine/sc_machdep.h>
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#include <sys/rman.h>
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#include <dev/fb/fbreg.h>
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#include <dev/syscons/syscons.h>
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#include <dev/ofw/openfirm.h>
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#include <powerpc/ofw/ofw_syscons.h>
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#include <machine/nexusvar.h>
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extern u_char dflt_font_16[];
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extern u_char dflt_font_14[];
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extern u_char dflt_font_8[];
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static int ofwfb_configure(int flags);
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static vi_probe_t ofwfb_probe;
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static vi_init_t ofwfb_init;
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static vi_get_info_t ofwfb_get_info;
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static vi_query_mode_t ofwfb_query_mode;
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static vi_set_mode_t ofwfb_set_mode;
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static vi_save_font_t ofwfb_save_font;
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static vi_load_font_t ofwfb_load_font;
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static vi_show_font_t ofwfb_show_font;
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static vi_save_palette_t ofwfb_save_palette;
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static vi_load_palette_t ofwfb_load_palette;
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static vi_set_border_t ofwfb_set_border;
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static vi_save_state_t ofwfb_save_state;
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static vi_load_state_t ofwfb_load_state;
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static vi_set_win_org_t ofwfb_set_win_org;
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static vi_read_hw_cursor_t ofwfb_read_hw_cursor;
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static vi_set_hw_cursor_t ofwfb_set_hw_cursor;
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static vi_set_hw_cursor_shape_t ofwfb_set_hw_cursor_shape;
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static vi_blank_display_t ofwfb_blank_display;
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static vi_mmap_t ofwfb_mmap;
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static vi_ioctl_t ofwfb_ioctl;
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static vi_clear_t ofwfb_clear;
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static vi_fill_rect_t ofwfb_fill_rect;
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static vi_bitblt_t ofwfb_bitblt;
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static vi_diag_t ofwfb_diag;
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static vi_save_cursor_palette_t ofwfb_save_cursor_palette;
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static vi_load_cursor_palette_t ofwfb_load_cursor_palette;
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static vi_copy_t ofwfb_copy;
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static vi_putp_t ofwfb_putp;
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static vi_putc_t ofwfb_putc;
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static vi_puts_t ofwfb_puts;
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static vi_putm_t ofwfb_putm;
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static video_switch_t ofwfbvidsw = {
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.probe = ofwfb_probe,
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.init = ofwfb_init,
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.get_info = ofwfb_get_info,
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.query_mode = ofwfb_query_mode,
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.set_mode = ofwfb_set_mode,
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.save_font = ofwfb_save_font,
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.load_font = ofwfb_load_font,
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.show_font = ofwfb_show_font,
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.save_palette = ofwfb_save_palette,
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.load_palette = ofwfb_load_palette,
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.set_border = ofwfb_set_border,
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.save_state = ofwfb_save_state,
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.load_state = ofwfb_load_state,
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.set_win_org = ofwfb_set_win_org,
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.read_hw_cursor = ofwfb_read_hw_cursor,
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.set_hw_cursor = ofwfb_set_hw_cursor,
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.set_hw_cursor_shape = ofwfb_set_hw_cursor_shape,
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.blank_display = ofwfb_blank_display,
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.mmap = ofwfb_mmap,
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.ioctl = ofwfb_ioctl,
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.clear = ofwfb_clear,
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.fill_rect = ofwfb_fill_rect,
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.bitblt = ofwfb_bitblt,
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.diag = ofwfb_diag,
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.save_cursor_palette = ofwfb_save_cursor_palette,
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.load_cursor_palette = ofwfb_load_cursor_palette,
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.copy = ofwfb_copy,
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.putp = ofwfb_putp,
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.putc = ofwfb_putc,
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.puts = ofwfb_puts,
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.putm = ofwfb_putm,
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};
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VIDEO_DRIVER(ofwfb, ofwfbvidsw, ofwfb_configure);
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extern sc_rndr_sw_t txtrndrsw;
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RENDERER(ofwfb, 0, txtrndrsw, gfb_set);
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RENDERER_MODULE(ofwfb, gfb_set);
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/*
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* Define the iso6429-1983 colormap
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*/
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static struct {
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u_int8_t red;
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u_int8_t green;
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u_int8_t blue;
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} ofwfb_cmap[16] = { /* # R G B Color */
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/* - - - - ----- */
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{ 0x00, 0x00, 0x00 }, /* 0 0 0 0 Black */
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{ 0x00, 0x00, 0xaa }, /* 1 0 0 2/3 Blue */
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{ 0x00, 0xaa, 0x00 }, /* 2 0 2/3 0 Green */
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{ 0x00, 0xaa, 0xaa }, /* 3 0 2/3 2/3 Cyan */
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{ 0xaa, 0x00, 0x00 }, /* 4 2/3 0 0 Red */
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{ 0xaa, 0x00, 0xaa }, /* 5 2/3 0 2/3 Magenta */
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{ 0xaa, 0x55, 0x00 }, /* 6 2/3 1/3 0 Brown */
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{ 0xaa, 0xaa, 0xaa }, /* 7 2/3 2/3 2/3 White */
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{ 0x55, 0x55, 0x55 }, /* 8 1/3 1/3 1/3 Gray */
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{ 0x55, 0x55, 0xff }, /* 9 1/3 1/3 1 Bright Blue */
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{ 0x55, 0xff, 0x55 }, /* 10 1/3 1 1/3 Bright Green */
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{ 0x55, 0xff, 0xff }, /* 11 1/3 1 1 Bright Cyan */
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{ 0xff, 0x55, 0x55 }, /* 12 1 1/3 1/3 Bright Red */
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{ 0xff, 0x55, 0xff }, /* 13 1 1/3 1 Bright Magenta */
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{ 0xff, 0xff, 0x80 }, /* 14 1 1 1/3 Bright Yellow */
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{ 0xff, 0xff, 0xff } /* 15 1 1 1 Bright White */
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};
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#define TODO printf("%s: unimplemented\n", __func__)
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static u_int16_t ofwfb_static_window[ROW*COL];
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static struct ofwfb_softc ofwfb_softc;
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static int
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ofwfb_background(u_int8_t attr)
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{
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return (attr >> 4);
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}
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static int
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ofwfb_foreground(u_int8_t attr)
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{
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return (attr & 0x0f);
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}
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static int
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ofwfb_configure(int flags)
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{
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struct ofwfb_softc *sc;
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phandle_t chosen;
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ihandle_t stdout;
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phandle_t node;
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int depth;
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int disable;
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char type[16];
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static int done = 0;
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disable = 0;
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TUNABLE_INT_FETCH("hw.syscons.disable", &disable);
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if (disable != 0)
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return (0);
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if (done != 0)
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return (0);
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done = 1;
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sc = &ofwfb_softc;
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chosen = OF_finddevice("/chosen");
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OF_getprop(chosen, "stdout", &stdout, sizeof(stdout));
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node = OF_instance_to_package(stdout);
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OF_getprop(node, "device_type", type, sizeof(type));
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if (strcmp(type, "display") != 0)
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return (0);
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/* Only support 8-bit framebuffers */
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OF_getprop(node, "depth", &depth, sizeof(depth));
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if (depth != 8)
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return (0);
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sc->sc_node = node;
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sc->sc_console = 1;
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OF_getprop(node, "height", &sc->sc_height, sizeof(sc->sc_height));
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OF_getprop(node, "width", &sc->sc_width, sizeof(sc->sc_width));
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OF_getprop(node, "linebytes", &sc->sc_stride, sizeof(sc->sc_stride));
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/*
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* XXX the physical address of the frame buffer is assumed to be
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* BAT-mapped so it can be accessed directly
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*/
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OF_getprop(node, "address", &sc->sc_addr, sizeof(sc->sc_addr));
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ofwfb_init(0, &sc->sc_va, 0);
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return (0);
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}
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static int
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ofwfb_probe(int unit, video_adapter_t **adp, void *arg, int flags)
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{
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TODO;
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return (0);
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}
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static int
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ofwfb_init(int unit, video_adapter_t *adp, int flags)
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{
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struct ofwfb_softc *sc;
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video_info_t *vi;
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char name[64];
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ihandle_t ih;
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int i;
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int cborder;
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int font_height;
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int retval;
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sc = (struct ofwfb_softc *)adp;
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vi = &adp->va_info;
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vid_init_struct(adp, "ofwfb", -1, unit);
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/*
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* Install the ISO6429 colormap - older OFW systems
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* don't do this by default
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*/
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memset(name, 0, sizeof(name));
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OF_package_to_path(sc->sc_node, name, sizeof(name));
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ih = OF_open(name);
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for (i = 0; i < 16; i++) {
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OF_call_method("color!", ih, 4, 1,
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ofwfb_cmap[i].red,
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ofwfb_cmap[i].green,
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ofwfb_cmap[i].blue,
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i,
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&retval);
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}
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/* The default font size can be overridden by loader */
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font_height = 16;
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TUNABLE_INT_FETCH("hw.syscons.fsize", &font_height);
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if (font_height == 8) {
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sc->sc_font = dflt_font_8;
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sc->sc_font_height = 8;
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} else if (font_height == 14) {
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sc->sc_font = dflt_font_14;
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sc->sc_font_height = 14;
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} else {
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/* default is 8x16 */
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sc->sc_font = dflt_font_16;
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sc->sc_font_height = 16;
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}
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/* The user can set a border in chars - default is 1 char width */
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cborder = 1;
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TUNABLE_INT_FETCH("hw.syscons.border", &cborder);
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vi->vi_cheight = sc->sc_font_height;
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vi->vi_width = sc->sc_width/8 - 2*cborder;
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vi->vi_height = sc->sc_height/sc->sc_font_height - 2*cborder;
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vi->vi_cwidth = 8;
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/*
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* Clamp width/height to syscons maximums
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*/
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if (vi->vi_width > COL)
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vi->vi_width = COL;
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if (vi->vi_height > ROW)
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vi->vi_height = ROW;
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sc->sc_xmargin = (sc->sc_width - (vi->vi_width * vi->vi_cwidth)) / 2;
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sc->sc_ymargin = (sc->sc_height - (vi->vi_height * vi->vi_cheight))/2;
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/*
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* Avoid huge amounts of conditional code in syscons by
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* defining a dummy h/w text display buffer.
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*/
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adp->va_window = (vm_offset_t) ofwfb_static_window;
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/* Enable future font-loading... */
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adp->va_flags |= V_ADP_FONT;
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ofwfb_blank_display(&sc->sc_va, V_DISPLAY_ON);
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ofwfb_set_mode(&sc->sc_va, 0);
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vid_register(&sc->sc_va);
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return (0);
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}
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static int
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ofwfb_get_info(video_adapter_t *adp, int mode, video_info_t *info)
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{
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bcopy(&adp->va_info, info, sizeof(*info));
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return (0);
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}
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static int
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ofwfb_query_mode(video_adapter_t *adp, video_info_t *info)
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{
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TODO;
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return (0);
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}
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static int
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ofwfb_set_mode(video_adapter_t *adp, int mode)
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{
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return (0);
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}
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static int
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ofwfb_save_font(video_adapter_t *adp, int page, int size, u_char *data,
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int c, int count)
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{
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TODO;
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return (0);
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}
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static int
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ofwfb_load_font(video_adapter_t *adp, int page, int size, u_char *data,
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int c, int count)
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{
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struct ofwfb_softc *sc;
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sc = (struct ofwfb_softc *)adp;
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/*
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* syscons code has already determined that current width/height
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* are unchanged for this new font
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*/
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sc->sc_font = data;
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return (0);
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}
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static int
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ofwfb_show_font(video_adapter_t *adp, int page)
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{
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TODO;
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return (0);
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}
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static int
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ofwfb_save_palette(video_adapter_t *adp, u_char *palette)
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{
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/* TODO; */
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return (0);
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}
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static int
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ofwfb_load_palette(video_adapter_t *adp, u_char *palette)
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{
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/* TODO; */
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return (0);
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}
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static int
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ofwfb_set_border(video_adapter_t *adp, int border)
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{
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/* TODO; */
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return (0);
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}
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static int
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ofwfb_save_state(video_adapter_t *adp, void *p, size_t size)
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{
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TODO;
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return (0);
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}
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static int
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ofwfb_load_state(video_adapter_t *adp, void *p)
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{
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TODO;
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return (0);
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}
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static int
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ofwfb_set_win_org(video_adapter_t *adp, off_t offset)
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{
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TODO;
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return (0);
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}
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static int
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ofwfb_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
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{
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*col = 0;
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*row = 0;
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return (0);
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}
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static int
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ofwfb_set_hw_cursor(video_adapter_t *adp, int col, int row)
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{
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return (0);
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}
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static int
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ofwfb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
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int celsize, int blink)
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{
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return (0);
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}
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static int
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ofwfb_blank_display(video_adapter_t *adp, int mode)
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{
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struct ofwfb_softc *sc;
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int i;
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u_int8_t *addr;
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sc = (struct ofwfb_softc *)adp;
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addr = (u_int8_t *) sc->sc_addr;
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/* Could be done a lot faster e.g. 32-bits, or Altivec'd */
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for (i = 0; i < sc->sc_stride*sc->sc_height; i++)
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*(addr + i) = ofwfb_background(SC_NORM_ATTR);
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return (0);
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}
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static int
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ofwfb_mmap(video_adapter_t *adp, vm_offset_t offset, vm_paddr_t *paddr,
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int prot)
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{
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TODO;
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return (0);
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}
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static int
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ofwfb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data)
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{
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TODO;
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return (0);
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}
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static int
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ofwfb_clear(video_adapter_t *adp)
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{
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TODO;
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return (0);
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}
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static int
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ofwfb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
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{
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TODO;
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return (0);
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}
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static int
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ofwfb_bitblt(video_adapter_t *adp, ...)
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{
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TODO;
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return (0);
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}
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static int
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ofwfb_diag(video_adapter_t *adp, int level)
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{
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TODO;
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return (0);
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}
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static int
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ofwfb_save_cursor_palette(video_adapter_t *adp, u_char *palette)
|
|
{
|
|
TODO;
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ofwfb_load_cursor_palette(video_adapter_t *adp, u_char *palette)
|
|
{
|
|
TODO;
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ofwfb_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n)
|
|
{
|
|
TODO;
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ofwfb_putp(video_adapter_t *adp, vm_offset_t off, u_int32_t p, u_int32_t a,
|
|
int size, int bpp, int bit_ltor, int byte_ltor)
|
|
{
|
|
TODO;
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ofwfb_putc(video_adapter_t *adp, vm_offset_t off, u_int8_t c, u_int8_t a)
|
|
{
|
|
struct ofwfb_softc *sc;
|
|
int row;
|
|
int col;
|
|
int i, j, k;
|
|
u_int8_t *addr;
|
|
u_char *p;
|
|
|
|
sc = (struct ofwfb_softc *)adp;
|
|
row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
|
|
col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
|
|
p = sc->sc_font + c*sc->sc_font_height;
|
|
addr = (u_int8_t *)sc->sc_addr + (row + sc->sc_ymargin)*sc->sc_stride
|
|
+ col + sc->sc_xmargin;
|
|
|
|
for (i = 0; i < sc->sc_font_height; i++) {
|
|
for (j = 0, k = 7; j < 8; j++, k--) {
|
|
if ((p[i] & (1 << k)) == 0)
|
|
*(addr + j) = ofwfb_background(a);
|
|
else
|
|
*(addr + j) = ofwfb_foreground(a);
|
|
}
|
|
addr += sc->sc_stride;
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ofwfb_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
ofwfb_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ofwfb_putm(video_adapter_t *adp, int x, int y, u_int8_t *pixel_image,
|
|
u_int32_t pixel_mask, int size)
|
|
{
|
|
struct ofwfb_softc *sc;
|
|
|
|
sc = (struct ofwfb_softc *)adp;
|
|
|
|
/* put mouse */
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Define the syscons nexus device attachment
|
|
*/
|
|
static void
|
|
ofwfb_scidentify(driver_t *driver, device_t parent)
|
|
{
|
|
device_t child;
|
|
|
|
/*
|
|
* Add with a priority guaranteed to make it last on
|
|
* the device list
|
|
*/
|
|
child = BUS_ADD_CHILD(parent, INT_MAX, SC_DRIVER_NAME, 0);
|
|
if (child != NULL)
|
|
nexus_set_device_type(child, "syscons");
|
|
}
|
|
|
|
static int
|
|
ofwfb_scprobe(device_t dev)
|
|
{
|
|
char *name;
|
|
|
|
name = nexus_get_name(dev);
|
|
if (strcmp(SC_DRIVER_NAME, name) != 0)
|
|
return (ENXIO);
|
|
|
|
device_set_desc(dev, "System console");
|
|
return (sc_probe_unit(device_get_unit(dev),
|
|
device_get_flags(dev) | SC_AUTODETECT_KBD));
|
|
}
|
|
|
|
static int
|
|
ofwfb_scattach(device_t dev)
|
|
{
|
|
return (sc_attach_unit(device_get_unit(dev),
|
|
device_get_flags(dev) | SC_AUTODETECT_KBD));
|
|
}
|
|
|
|
static device_method_t ofwfb_sc_methods[] = {
|
|
DEVMETHOD(device_identify, ofwfb_scidentify),
|
|
DEVMETHOD(device_probe, ofwfb_scprobe),
|
|
DEVMETHOD(device_attach, ofwfb_scattach),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t ofwfb_sc_driver = {
|
|
SC_DRIVER_NAME,
|
|
ofwfb_sc_methods,
|
|
sizeof(sc_softc_t),
|
|
};
|
|
|
|
static devclass_t sc_devclass;
|
|
|
|
DRIVER_MODULE(sc, nexus, ofwfb_sc_driver, sc_devclass, 0, 0);
|
|
|
|
/*
|
|
* Define a stub keyboard driver in case one hasn't been
|
|
* compiled into the kernel
|
|
*/
|
|
#include <sys/kbio.h>
|
|
#include <dev/kbd/kbdreg.h>
|
|
|
|
static int dummy_kbd_configure(int flags);
|
|
|
|
keyboard_switch_t dummysw;
|
|
|
|
static int
|
|
dummy_kbd_configure(int flags)
|
|
{
|
|
|
|
return (0);
|
|
}
|
|
KEYBOARD_DRIVER(dummy, dummysw, dummy_kbd_configure);
|
|
|
|
/*
|
|
* Utility routines from <dev/fb/fbreg.h>
|
|
*/
|
|
void
|
|
ofwfb_bcopy(const void *s, void *d, size_t c)
|
|
{
|
|
bcopy(s, d, c);
|
|
}
|
|
|
|
void
|
|
ofwfb_bzero(void *d, size_t c)
|
|
{
|
|
bzero(d, c);
|
|
}
|
|
|
|
void
|
|
ofwfb_fillw(int pat, void *base, size_t cnt)
|
|
{
|
|
u_int16_t *bptr = base;
|
|
|
|
while (cnt--)
|
|
*bptr++ = pat;
|
|
}
|
|
|
|
u_int16_t
|
|
ofwfb_readw(u_int16_t *addr)
|
|
{
|
|
return (*addr);
|
|
}
|
|
|
|
void
|
|
ofwfb_writew(u_int16_t *addr, u_int16_t val)
|
|
{
|
|
*addr = val;
|
|
}
|