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1 /*-
2  * Copyright (c) 1999 FreeBSD(98) Porting Team.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer as
10  *    the first lines of this file unmodified.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28
29 #include "sc.h"
30 #include "gdc.h"
31 #include "opt_syscons.h"
32 #include "opt_gdc.h"
33
34 #if NSC > 0 && NGDC > 0
35
36 #include <sys/param.h>
37 #include <sys/kernel.h>
38
39 #include <machine/console.h>
40
41 #include <dev/fb/fbreg.h>
42 #include <dev/syscons/syscons.h>
43
44 #ifndef SC_RENDER_DEBUG
45 #define SC_RENDER_DEBUG         0
46 #endif
47
48 static vr_clear_t               gdc_txtclear;
49 static vr_draw_border_t         gdc_txtborder;
50 static vr_draw_t                gdc_txtdraw;
51 static vr_set_cursor_t          gdc_txtcursor_shape;
52 static vr_draw_cursor_t         gdc_txtcursor;
53 #ifndef SC_NO_CUTPASTE
54 static vr_draw_mouse_t          gdc_txtmouse;
55 #else
56 #define gdc_txtmouse            (vr_draw_mouse_t *)gdc_nop
57 #endif
58
59 #ifndef SC_NO_MODE_CHANGE
60 static vr_draw_border_t         gdc_grborder;
61 #endif
62
63 static void                     gdc_nop(scr_stat *scp, ...);
64
65 static struct linker_set        gdc_set;
66
67 static sc_rndr_sw_t txtrndrsw = {
68         gdc_txtclear,
69         gdc_txtborder,
70         gdc_txtdraw,    
71         gdc_txtcursor_shape,
72         gdc_txtcursor,
73         (vr_blink_cursor_t *)gdc_nop,
74         (vr_set_mouse_t *)gdc_nop,
75         gdc_txtmouse,
76 };
77 RENDERER(gdc, 0, txtrndrsw, gdc_set);
78
79 #ifndef SC_NO_MODE_CHANGE
80 static sc_rndr_sw_t grrndrsw = {
81         (vr_clear_t *)gdc_nop,
82         gdc_grborder,
83         (vr_draw_t *)gdc_nop,
84         (vr_set_cursor_t *)gdc_nop,
85         (vr_draw_cursor_t *)gdc_nop,
86         (vr_blink_cursor_t *)gdc_nop,
87         (vr_set_mouse_t *)gdc_nop,
88         (vr_draw_mouse_t *)gdc_nop,
89 };
90 RENDERER(gdc, GRAPHICS_MODE, grrndrsw, gdc_set);
91 #endif /* SC_NO_MODE_CHANGE */
92
93 RENDERER_MODULE(gdc, gdc_set);
94
95 static void
96 gdc_nop(scr_stat *scp, ...)
97 {
98 }
99
100 /* text mode renderer */
101
102 static void
103 gdc_txtclear(scr_stat *scp, int c, int attr)
104 {
105         sc_vtb_clear(&scp->scr, c, attr);
106 }
107
108 static void
109 gdc_txtborder(scr_stat *scp, int color)
110 {
111         (*vidsw[scp->sc->adapter]->set_border)(scp->sc->adp, color);
112 }
113
114 static void
115 gdc_txtdraw(scr_stat *scp, int from, int count, int flip)
116 {
117         vm_offset_t p;
118         int c;
119         int a;
120
121         if (from + count > scp->xsize*scp->ysize)
122                 count = scp->xsize*scp->ysize - from;
123
124         if (flip) {
125                 p = sc_vtb_pointer(&scp->scr, from);
126                 for (; count-- > 0; ++from) {
127                         c = sc_vtb_getc(&scp->vtb, from);
128                         a = sc_vtb_geta(&scp->vtb, from) ^ 0x4;
129                         sc_vtb_putchar(&scp->scr, p, c, a);
130                 }
131         } else {
132                 sc_vtb_copy(&scp->vtb, from, &scp->scr, from, count);
133         }
134 }
135
136 static void
137 gdc_txtcursor_shape(scr_stat *scp, int base, int height, int blink)
138 {
139         if (base < 0 || base >= scp->font_size)
140                 return;
141         /* the caller may set height <= 0 in order to disable the cursor */
142         (*vidsw[scp->sc->adapter]->set_hw_cursor_shape)(scp->sc->adp,
143                                                         base, height,
144                                                         scp->font_size, blink);
145 }
146
147 static void
148 gdc_txtcursor(scr_stat *scp, int at, int blink, int on, int flip)
149 {
150         if (on) {
151                 scp->status |= VR_CURSOR_ON;
152                 (*vidsw[scp->sc->adapter]->set_hw_cursor)(scp->sc->adp,
153                                                  at%scp->xsize, at/scp->xsize); 
154         } else {
155                 if (scp->status & VR_CURSOR_ON)
156                         (*vidsw[scp->sc->adapter]->set_hw_cursor)(scp->sc->adp,
157                                                                   -1, -1);
158                 scp->status &= ~VR_CURSOR_ON;
159         }
160 }
161
162 #ifndef SC_NO_CUTPASTE
163
164 static void
165 draw_txtmouse(scr_stat *scp, int x, int y)
166 {
167         int at;
168
169         at = (y/scp->font_size - scp->yoff)*scp->xsize + x/8 - scp->xoff;
170         sc_vtb_putc(&scp->scr, at,
171                     sc_vtb_getc(&scp->scr, at),
172                     sc_vtb_geta(&scp->scr, at) ^ 0x4);
173 }
174
175 static void
176 remove_txtmouse(scr_stat *scp, int x, int y)
177 {
178 }
179
180 static void 
181 gdc_txtmouse(scr_stat *scp, int x, int y, int on)
182 {
183         if (on)
184                 draw_txtmouse(scp, x, y);
185         else
186                 remove_txtmouse(scp, x, y);
187 }
188
189 #endif /* SC_NO_CUTPASTE */
190
191 #ifndef SC_NO_MODE_CHANGE
192
193 /* graphics mode renderer */
194
195 static void
196 gdc_grborder(scr_stat *scp, int color)
197 {
198         (*vidsw[scp->sc->adapter]->set_border)(scp->sc->adp, color);
199 }
200
201 #endif /* SC_NO_MODE_CHANGE */
202
203 #endif /* NSC > 0 && NGDC > 0 */