Annotation of sys/arch/hp300/hp300/wscons_machdep.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: wscons_machdep.c,v 1.8 2006/12/18 18:57:26 miod Exp $ */
2:
3: /*
4: * Copyright (c) 2005, Miodrag Vallat
5: *
6: * Redistribution and use in source and binary forms, with or without
7: * modification, are permitted provided that the following conditions
8: * are met:
9: * 1. Redistributions of source code must retain the above copyright
10: * notice, this list of conditions and the following disclaimer.
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 AUTHOR ``AS IS'' AND ANY EXPRESS OR
16: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18: * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
19: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
23: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
24: * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25: * POSSIBILITY OF SUCH DAMAGE.
26: */
27: /*
28: * Copyright (c) 2002 Michael Shalayeff
29: * All rights reserved.
30: *
31: * Redistribution and use in source and binary forms, with or without
32: * modification, are permitted provided that the following conditions
33: * are met:
34: * 1. Redistributions of source code must retain the above copyright
35: * notice, this list of conditions and the following disclaimer.
36: * 2. Redistributions in binary form must reproduce the above copyright
37: * notice, this list of conditions and the following disclaimer in the
38: * documentation and/or other materials provided with the distribution.
39: * 3. The name of the author may not be used to endorse or promote products
40: * derived from this software without specific prior written permission.
41: *
42: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
43: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
44: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
45: * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
46: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
47: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
48: * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
49: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
50: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
51: * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
52: * THE POSSIBILITY OF SUCH DAMAGE.
53: */
54:
55: #include <sys/param.h>
56: #include <sys/systm.h>
57: #include <sys/kernel.h>
58: #include <sys/conf.h>
59: #include <sys/device.h>
60:
61: #include <machine/autoconf.h>
62: #include <machine/cpu.h>
63: #include <machine/hp300spu.h>
64:
65: #include <dev/cons.h>
66:
67: #include <dev/wscons/wsconsio.h>
68: #include <dev/wscons/wsdisplayvar.h>
69: #include <dev/rasops/rasops.h>
70:
71: #include "wsdisplay.h"
72: #include "wskbd.h"
73: #if NWSKBD > 0
74: #include <dev/wscons/wskbdvar.h>
75: #endif
76:
77: #include "dvbox.h"
78: #include "gbox.h"
79: #include "hyper.h"
80: #include "rbox.h"
81: #include "topcat.h"
82: #include "tvrx.h"
83: #if NDVBOX > 0 || NGBOX > 0 || NHYPER > 0 || NRBOX > 0 || NTOPCAT > 0 || NTVRX > 0
84: #include <hp300/dev/dioreg.h>
85: #include <hp300/dev/diovar.h>
86: #include <hp300/dev/diofbreg.h>
87: #include <hp300/dev/diofbvar.h>
88: struct diofb diofb_cn;
89: #endif
90:
91: #include "sti.h"
92: #if NSTI > 0
93: #include <machine/bus.h>
94: #include <hp300/dev/sgcreg.h>
95: #include <hp300/dev/sgcvar.h>
96: #include <dev/ic/stireg.h>
97: #include <dev/ic/stivar.h>
98: extern int sti_console_scan(int);
99: extern void sticninit(void);
100: #endif
101:
102: extern caddr_t internalhpib;
103:
104: cons_decl(ws);
105:
106: void (*wsfbcninit)(void) = NULL;
107:
108: #if NDVBOX > 0 || NGBOX > 0 || NHYPER > 0 || NRBOX > 0 || NTOPCAT > 0 || NTVRX > 0
109: int dio_fbidentify(struct diofbreg *);
110:
111: /*
112: * Identify a DIO frame buffer and set up wsfbcninit accordingly.
113: */
114: int
115: dio_fbidentify(struct diofbreg *fbr)
116: {
117: if (fbr->id == GRFHWID)
118: switch (fbr->fbid) {
119: #if NDVBOX > 0
120: case GID_DAVINCI:
121: wsfbcninit = dvboxcninit;
122: return (1);
123: #endif
124: #if NGBOX > 0
125: case GID_GATORBOX:
126: wsfbcninit = gboxcninit;
127: return (1);
128: #endif
129: #if NHYPER > 0
130: case GID_HYPERION:
131: wsfbcninit = hypercninit;
132: return (1);
133: #endif
134: #if NRBOX > 0
135: case GID_RENAISSANCE:
136: wsfbcninit = rboxcninit;
137: return (1);
138: #endif
139: #if NTOPCAT > 0
140: case GID_TOPCAT:
141: case GID_LRCATSEYE:
142: case GID_HRCCATSEYE:
143: case GID_HRMCATSEYE:
144: wsfbcninit = topcatcninit;
145: return (1);
146: #endif
147: #if NTVRX > 0
148: case GID_TIGER:
149: wsfbcninit = tvrxcninit;
150: return (1);
151: #endif
152: default:
153: break;
154: }
155:
156: return (0);
157: }
158: #endif
159:
160: /*
161: * This routine handles the dirty work of picking the best frame buffer
162: * suitable for the console.
163: * We try to behave as close as possible to the PROM's logic, by preferring
164: * devices for which we have drivers, in that order:
165: * - internal video.
166: * - lowest select code on DIO bus.
167: * - lowest slot on SGC bus.
168: */
169: void
170: wscnprobe(struct consdev *cp)
171: {
172: int maj, tmpconscode;
173: vsize_t mapsize;
174: vaddr_t va;
175: #if NDVBOX > 0 || NGBOX > 0 || NHYPER > 0 || NRBOX > 0 || NTOPCAT > 0 || NTVRX > 0
176: paddr_t pa;
177: u_int scode, sctop;
178: struct diofbreg *fbr;
179: #endif
180:
181: for (maj = 0; maj < nchrdev; maj++) {
182: if (cdevsw[maj].d_open == wsdisplayopen)
183: break;
184: }
185:
186: cp->cn_dev = makedev(maj, 0);
187: wsfbcninit = NULL;
188:
189: #if NDVBOX > 0 || NGBOX > 0 || NRBOX > 0 || NTOPCAT > 0
190: /*
191: * Look for an ``internal'' frame buffer.
192: */
193: va = IIOV(GRFIADDR);
194: fbr = (struct diofbreg *)va;
195: if (!badaddr((caddr_t)va)) {
196: if (dio_fbidentify(fbr)) {
197: tmpconscode = CONSCODE_INTERNAL;
198: mapsize = 0;
199: goto found;
200: }
201: }
202: #endif
203:
204: #if NDVBOX > 0 || NGBOX > 0 || NHYPER > 0 || NRBOX > 0 || NTOPCAT > 0 || NTVRX > 0
205: /*
206: * Scan the DIO bus.
207: */
208: sctop = DIO_SCMAX(machineid);
209: for (scode = 0; scode < sctop; scode++) {
210: /*
211: * Skip over the select code hole and the internal
212: * HP-IB controller.
213: */
214: if (DIO_INHOLE(scode) || (scode == 7 && internalhpib))
215: continue;
216:
217: /* Map current PA. */
218: pa = (paddr_t)dio_scodetopa(scode);
219: va = (vaddr_t)iomap((caddr_t)pa, PAGE_SIZE);
220: if (va == NULL)
221: continue;
222:
223: /* Check to see if hardware exists. */
224: if (badaddr((caddr_t)va)) {
225: iounmap((caddr_t)va, PAGE_SIZE);
226: continue;
227: }
228:
229: /* Check hardware. */
230: fbr = (struct diofbreg *)va;
231: if (dio_fbidentify(fbr)) {
232: tmpconscode = scode;
233: mapsize = DIO_SIZE(scode, va);
234: iounmap((caddr_t)va, PAGE_SIZE);
235: va = (vaddr_t)iomap((caddr_t)pa, mapsize);
236: if (va == NULL)
237: continue;
238: goto found;
239: } else
240: iounmap((caddr_t)va, PAGE_SIZE);
241: }
242: #endif
243:
244: #if NSTI > 0
245: /*
246: * Scan the SGC bus.
247: */
248: for (scode = 0; scode < SGC_NSLOTS; scode++) {
249: int rv;
250:
251: /* Map current PA. */
252: pa = (paddr_t)sgc_slottopa(scode);
253: va = (vaddr_t)iomap((caddr_t)pa, PAGE_SIZE);
254: if (va == NULL)
255: continue;
256:
257: /* Check to see if hardware exists. */
258: rv = badaddr((caddr_t)va);
259: iounmap((caddr_t)va, PAGE_SIZE);
260: if (rv != 0)
261: continue;
262:
263: /* Check hardware. */
264: if (sti_console_scan(scode) != 0) {
265: wsfbcninit = sticninit;
266: tmpconscode = SGC_SLOT_TO_CONSCODE(scode);
267: mapsize = 0;
268: va = 0;
269: goto found;
270: }
271: }
272: #endif
273:
274: return;
275:
276: found:
277: cp->cn_pri = CN_INTERNAL;
278: #ifdef CONSCODE
279: if (CONSCODE == tmpconscode)
280: cp->cn_pri = CN_FORCED;
281: #endif
282:
283: /*
284: * If our priority is higher than the currently remembered console,
285: * install ourselves, and unmap whichever device might be currently
286: * mapped.
287: */
288: if (cn_tab == NULL || cp->cn_pri > cn_tab->cn_pri) {
289: cn_tab = cp;
290: /* Free last mapping. */
291: if (convasize)
292: iounmap(conaddr, convasize);
293: conscode = tmpconscode;
294: conaddr = (caddr_t)va;
295: convasize = mapsize;
296:
297: }
298: }
299:
300: void
301: wscninit(struct consdev *cp)
302: {
303: /*
304: * Note that this relies on the fact that DIO frame buffers will cause
305: * cn_tab to switch to wsdisplaycons, so their cninit function will
306: * never get invoked a second time during the second console pass.
307: */
308: if (wsfbcninit != NULL)
309: (*wsfbcninit)();
310: }
311:
312: void
313: wscnputc(dev_t dev, int i)
314: {
315: #if NWSDISPLAY > 0
316: wsdisplay_cnputc(dev, i);
317: #endif
318: }
319:
320: int
321: wscngetc(dev_t dev)
322: {
323: #if NWSKBD > 0
324: return (wskbd_cngetc(dev));
325: #else
326: return (0);
327: #endif
328: }
329:
330: void
331: wscnpollc(dev_t dev, int on)
332: {
333: #if NWSKBD > 0
334: wskbd_cnpollc(dev, on);
335: #endif
336: }
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