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1.1 root 1: /*
2: * Copyright (c) 1988 University of Utah.
3: * Copyright (c) 1990 The Regents of the University of California.
4: * All rights reserved.
5: *
6: * This code is derived from software contributed to Berkeley by
7: * the Systems Programming Group of the University of Utah Computer
8: * Science Department.
9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: * 3. All advertising materials mentioning features or use of this software
19: * must display the following acknowledgement:
20: * This product includes software developed by the University of
21: * California, Berkeley and its contributors.
22: * 4. Neither the name of the University nor the names of its contributors
23: * may be used to endorse or promote products derived from this software
24: * without specific prior written permission.
25: *
26: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36: * SUCH DAMAGE.
37: *
38: * from: Utah $Hdr: ite_dv.c 1.1 89/02/28$
39: *
40: * @(#)ite_dv.c 7.2 (Berkeley) 12/16/90
41: */
42:
43: #include "samachdep.h"
44:
45: #ifdef ITECONSOLE
46:
47: #include "sys/param.h"
48: #include "../dev/itevar.h"
49: #include "../dev/itereg.h"
50: #include "../dev/grfvar.h"
51: #include "../dev/grf_dvreg.h"
52:
53: #define REGBASE ((struct dvboxfb *)(ip->regbase))
54: #define WINDOWMOVER dvbox_windowmove
55:
56: dvbox_init(ip)
57: struct ite_softc *ip;
58: {
59: int i;
60:
61: dv_reset(REGADDR);
62: DELAY(4000);
63:
64: /*
65: * Turn on frame buffer, turn on overlay planes, set replacement
66: * rule, enable top overlay plane writes for ite, disable all frame
67: * buffer planes, set byte per pixel, and display frame buffer 0.
68: * Lastly, turn on the box.
69: */
70: REGBASE->interrupt = 0x04;
71: REGBASE->drive = 0x10;
72: REGBASE->rep_rule = RR_COPY << 4 | RR_COPY;
73: REGBASE->opwen = 0x01;
74: REGBASE->fbwen = 0x0;
75: REGBASE->fold = 0x01;
76: REGBASE->vdrive = 0x0;
77: REGBASE->dispen = 0x01;
78:
79: /*
80: * Video enable top overlay plane.
81: */
82: REGBASE->opvenp = 0x01;
83: REGBASE->opvens = 0x01;
84:
85: /*
86: * Make sure that overlay planes override frame buffer planes.
87: */
88: REGBASE->ovly0p = 0x0;
89: REGBASE->ovly0s = 0x0;
90: REGBASE->ovly1p = 0x0;
91: REGBASE->ovly1s = 0x0;
92: REGBASE->fv_trig = 0x1;
93: DELAY(400);
94:
95: /*
96: * Setup the overlay colormaps. Need to set the 0,1 (black/white)
97: * color for both banks.
98: */
99:
100: for (i = 0; i <= 1; i++) {
101: REGBASE->cmapbank = i;
102: REGBASE->rgb[0].red = 0x00;
103: REGBASE->rgb[0].green = 0x00;
104: REGBASE->rgb[0].blue = 0x00;
105: REGBASE->rgb[1].red = 0xFF;
106: REGBASE->rgb[1].green = 0xFF;
107: REGBASE->rgb[1].blue = 0xFF;
108: }
109: REGBASE->cmapbank = 0;
110:
111: db_waitbusy(REGADDR);
112:
113: ite_devinfo(ip);
114: ite_fontinit(ip);
115:
116: /*
117: * Clear the (visible) framebuffer.
118: */
119: dvbox_windowmove(ip, 0, 0, 0, 0, ip->dheight, ip->dwidth, RR_CLEAR);
120: db_waitbusy(REGADDR);
121:
122: /*
123: * Stash the inverted cursor.
124: */
125: dvbox_windowmove(ip, charY(ip, ' '), charX(ip, ' '),
126: ip->cblanky, ip->cblankx, ip->ftheight,
127: ip->ftwidth, RR_COPYINVERTED);
128: db_waitbusy(REGADDR);
129: }
130:
131: dvbox_putc(ip, c, dy, dx, mode)
132: register struct ite_softc *ip;
133: register int dy, dx;
134: int c, mode;
135: {
136: dvbox_windowmove(ip, charY(ip, c), charX(ip, c),
137: dy * ip->ftheight, dx * ip->ftwidth,
138: ip->ftheight, ip->ftwidth, RR_COPY);
139: }
140:
141: dvbox_cursor(ip, flag)
142: register struct ite_softc *ip;
143: register int flag;
144: {
145: if (flag == DRAW_CURSOR)
146: draw_cursor(ip)
147: else if (flag == MOVE_CURSOR) {
148: erase_cursor(ip)
149: draw_cursor(ip)
150: }
151: else
152: erase_cursor(ip)
153: }
154:
155: dvbox_clear(ip, sy, sx, h, w)
156: struct ite_softc *ip;
157: register int sy, sx, h, w;
158: {
159: dvbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
160: sy * ip->ftheight, sx * ip->ftwidth,
161: h * ip->ftheight, w * ip->ftwidth,
162: RR_CLEAR);
163: }
164:
165: dvbox_scroll(ip, sy, sx, count, dir)
166: register struct ite_softc *ip;
167: register int sy, count;
168: int dir, sx;
169: {
170: register int dy = sy - count;
171: register int height = ip->rows - sy;
172:
173: dvbox_cursor(ip, ERASE_CURSOR);
174:
175: dvbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
176: dy * ip->ftheight, sx * ip->ftwidth,
177: height * ip->ftheight,
178: ip->cols * ip->ftwidth, RR_COPY);
179: }
180:
181: dvbox_windowmove(ip, sy, sx, dy, dx, h, w, func)
182: struct ite_softc *ip;
183: int sy, sx, dy, dx, h, w, func;
184: {
185: register struct dvboxfb *dp = REGBASE;
186: if (h == 0 || w == 0)
187: return;
188:
189: db_waitbusy(REGADDR);
190: dp->rep_rule = func << 4 | func;
191: dp->source_y = sy;
192: dp->source_x = sx;
193: dp->dest_y = dy;
194: dp->dest_x = dx;
195: dp->wheight = h;
196: dp->wwidth = w;
197: dp->wmove = 1;
198: }
199:
200: dv_reset(dbp)
201: register struct dvboxfb *dbp;
202: {
203: dbp->reset = 0x80;
204: DELAY(400);
205:
206: dbp->interrupt = 0x04;
207: dbp->en_scan = 0x01;
208: dbp->fbwen = ~0;
209: dbp->opwen = ~0;
210: dbp->fold = 0x01;
211: dbp->drive = 0x01;
212: dbp->rep_rule = 0x33;
213: dbp->alt_rr = 0x33;
214: dbp->zrr = 0x33;
215:
216: dbp->fbvenp = 0xFF;
217: dbp->dispen = 0x01;
218: dbp->fbvens = 0x0;
219: dbp->fv_trig = 0x01;
220: DELAY(400);
221: dbp->vdrive = 0x0;
222: dbp->zconfig = 0x0;
223:
224: while (dbp->wbusy & 0x01)
225: DELAY(400);
226:
227: /*
228: * Start of missing ROM code.
229: */
230: dbp->cmapbank = 0;
231:
232: dbp->red0 = 0;
233: dbp->red1 = 0;
234: dbp->green0 = 0;
235: dbp->green1 = 0;
236: dbp->blue0 = 0;
237: dbp->blue1 = 0;
238:
239: dbp->panxh = 0;
240: dbp->panxl = 0;
241: dbp->panyh = 0;
242: dbp->panyl = 0;
243: dbp->zoom = 0;
244: dbp->cdwidth = 0x50;
245: dbp->chstart = 0x52;
246: dbp->cvwidth = 0x22;
247: dbp->pz_trig = 1;
248: /*
249: * End of missing ROM code.
250: */
251: }
252:
253: #endif
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