1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 1999 Michael Smith <msmith@freebsd.org>
5 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@freebsd.org>
6 * Copyright (c) 2005 Antony Mawer <antony@mawer.org>
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * $FreeBSD: releng/12.0/sys/dev/fb/splash_txt.c 326255 2017-11-27 14:52:40Z pfg $
31 */
32
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/module.h>
36 #include <sys/kernel.h>
37 #include <sys/consio.h>
38 #include <sys/fbio.h>
39
40 #include <machine/pc/display.h>
41
42 #include <dev/fb/fbreg.h>
43 #include <dev/fb/splashreg.h>
44 #include <dev/syscons/syscons.h>
45
46 static int splash_on = FALSE;
47
48 static int txt_init(video_adapter_t *adp);
49 static int txt_end(video_adapter_t *adp);
50 static int txt_splash(video_adapter_t * adp, const int on);
51
52 /* These are rows by columns of the text-mode display device. */
53 #define BIN_IMAGE_WIDTH 80
54 #define BIN_IMAGE_HEIGHT 25
55
56 static splash_decoder_t txt_decoder = {
57 .name = "splash_txt",
58 .init = txt_init,
59 .term = txt_end,
60 .splash = txt_splash,
61 .data_type = SPLASH_IMAGE,
62 };
63
64 SPLASH_DECODER(splash_txt, txt_decoder);
65
66 static void
67 draw_text_splash(sc_softc_t *sc)
68 {
69 u_int x, y;
70 u_char ch, attr;
71 u_char *pdata = txt_decoder.data;
72
73 /* Init failed. */
74 if (txt_decoder.data == NULL)
75 return;
76 for (y = 0; y < BIN_IMAGE_HEIGHT; y++) {
77 for (x = 0; x < BIN_IMAGE_WIDTH; x++) {
78 ch = *pdata++;
79 attr = *pdata++;
80 sc_vtb_putc(&sc->cur_scp->scr,
81 (y * sc->cur_scp->xsize) + x,
82 sc->scr_map[ch], (int)attr << 8);
83 }
84 }
85 }
86
87 static int
88 txt_init(video_adapter_t *adp)
89 {
90
91 /* Ensure that the image data exists. */
92 if (txt_decoder.data == NULL || txt_decoder.data_size <= 0) {
93 printf("splash_txt: No ASCII bitmap file found\n");
94 return (ENODEV);
95 }
96 return (0);
97 }
98
99 static int
100 txt_end(video_adapter_t *adp)
101 {
102
103 return (0);
104 }
105
106 static int
107 txt_splash(video_adapter_t *adp, const int on)
108 {
109 sc_softc_t *sc;
110 scr_stat *scp;
111
112 sc = sc_find_softc(adp, NULL);
113 if (sc == NULL)
114 return (EAGAIN);
115 scp = sc->cur_scp;
116 if (on) {
117 if (!splash_on) {
118 if (adp->va_info.vi_flags & V_INFO_GRAPHICS)
119 return EAGAIN;
120 /* Clear screen and set border colour. */
121 sc_vtb_clear(&scp->scr, sc->scr_map[0x20],
122 (FG_LIGHTGREY | BG_BLACK) << 8);
123 (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1);
124 sc_set_border(scp, 0);
125 splash_on = TRUE;
126 /* Display the splash screen. */
127 draw_text_splash(sc);
128 }
129 return (0);
130 } else {
131 /* The video mode will be restored by the caller. */
132 splash_on = FALSE;
133 return (0);
134 }
135 }
136
137
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