Annotation of sys/arch/hp300/dev/hyper.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: hyper.c,v 1.15 2006/04/14 21:05:43 miod Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 2005, Miodrag Vallat.
! 5: * All rights reserved.
! 6: *
! 7: * Redistribution and use in source and binary forms, with or without
! 8: * modification, are permitted provided that the following conditions
! 9: * are met:
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: * 2. Redistributions in binary form must reproduce the above copyright
! 13: * notice, this list of conditions and the following disclaimer in the
! 14: * documentation and/or other materials provided with the distribution.
! 15: *
! 16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 17: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
! 18: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
! 19: * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
! 20: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
! 21: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
! 22: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 23: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
! 24: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
! 25: * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 26: * POSSIBILITY OF SUCH DAMAGE.
! 27: *
! 28: */
! 29: /*
! 30: * Copyright (c) 1996 Jason R. Thorpe. All rights reserved.
! 31: * Copyright (c) 1991 University of Utah.
! 32: * Copyright (c) 1990, 1993
! 33: * The Regents of the University of California. All rights reserved.
! 34: *
! 35: * This code is derived from software contributed to Berkeley by
! 36: * the Systems Programming Group of the University of Utah Computer
! 37: * Science Department and Mark Davies of the Department of Computer
! 38: * Science, Victoria University of Wellington, New Zealand.
! 39: *
! 40: * Redistribution and use in source and binary forms, with or without
! 41: * modification, are permitted provided that the following conditions
! 42: * are met:
! 43: * 1. Redistributions of source code must retain the above copyright
! 44: * notice, this list of conditions and the following disclaimer.
! 45: * 2. Redistributions in binary form must reproduce the above copyright
! 46: * notice, this list of conditions and the following disclaimer in the
! 47: * documentation and/or other materials provided with the distribution.
! 48: * 3. Neither the name of the University nor the names of its contributors
! 49: * may be used to endorse or promote products derived from this software
! 50: * without specific prior written permission.
! 51: *
! 52: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 53: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 54: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 55: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 56: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 57: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 58: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 59: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 60: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 61: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 62: * SUCH DAMAGE.
! 63: *
! 64: * from: Utah $Hdr: grf_hy.c 1.2 93/08/13$
! 65: *
! 66: * @(#)grf_hy.c 8.4 (Berkeley) 1/12/94
! 67: */
! 68:
! 69: /*
! 70: * Graphics routines for HYPERION frame buffer
! 71: */
! 72:
! 73: #include <sys/param.h>
! 74: #include <sys/systm.h>
! 75: #include <sys/conf.h>
! 76: #include <sys/device.h>
! 77: #include <sys/ioctl.h>
! 78: #include <sys/proc.h>
! 79:
! 80: #include <machine/autoconf.h>
! 81: #include <machine/bus.h>
! 82: #include <machine/cpu.h>
! 83:
! 84: #include <hp300/dev/dioreg.h>
! 85: #include <hp300/dev/diovar.h>
! 86: #include <hp300/dev/diodevs.h>
! 87: #include <hp300/dev/intiovar.h>
! 88:
! 89: #include <dev/wscons/wsconsio.h>
! 90: #include <dev/wscons/wsdisplayvar.h>
! 91: #include <dev/rasops/rasops.h>
! 92:
! 93: #include <hp300/dev/diofbreg.h>
! 94: #include <hp300/dev/diofbvar.h>
! 95: #include <hp300/dev/hyperreg.h>
! 96:
! 97: struct hyper_softc {
! 98: struct device sc_dev;
! 99: struct diofb *sc_fb;
! 100: struct diofb sc_fb_store;
! 101: };
! 102:
! 103: int hyper_match(struct device *, void *, void *);
! 104: void hyper_attach(struct device *, struct device *, void *);
! 105:
! 106: struct cfattach hyper_ca = {
! 107: sizeof(struct hyper_softc), hyper_match, hyper_attach
! 108: };
! 109:
! 110: struct cfdriver hyper_cd = {
! 111: NULL, "hyper", DV_DULL
! 112: };
! 113:
! 114: int hyper_reset(struct diofb *, int, struct diofbreg *);
! 115:
! 116: int hyper_ioctl(void *, u_long, caddr_t, int, struct proc *);
! 117: void hyper_burner(void *, u_int, u_int);
! 118:
! 119: struct wsdisplay_accessops hyper_accessops = {
! 120: hyper_ioctl,
! 121: diofb_mmap,
! 122: diofb_alloc_screen,
! 123: diofb_free_screen,
! 124: diofb_show_screen,
! 125: NULL, /* load_font */
! 126: NULL, /* scrollback */
! 127: NULL, /* getchar */
! 128: hyper_burner
! 129: };
! 130:
! 131: /*
! 132: * Attachment glue
! 133: */
! 134:
! 135: int
! 136: hyper_match(struct device *parent, void *match, void *aux)
! 137: {
! 138: struct dio_attach_args *da = aux;
! 139:
! 140: if (da->da_id == DIO_DEVICE_ID_FRAMEBUFFER &&
! 141: da->da_secid == DIO_DEVICE_SECID_HYPERION)
! 142: return (1);
! 143:
! 144: return (0);
! 145: }
! 146:
! 147: void
! 148: hyper_attach(struct device *parent, struct device *self, void *aux)
! 149: {
! 150: struct hyper_softc *sc = (struct hyper_softc *)self;
! 151: struct dio_attach_args *da = aux;
! 152: struct diofbreg *fbr;
! 153: int scode;
! 154:
! 155: scode = da->da_scode;
! 156: if (scode == conscode) {
! 157: fbr = (struct diofbreg *)conaddr; /* already mapped */
! 158: sc->sc_fb = &diofb_cn;
! 159: } else {
! 160: sc->sc_fb = &sc->sc_fb_store;
! 161: fbr = (struct diofbreg *)
! 162: iomap(dio_scodetopa(scode), da->da_size);
! 163: if (fbr == NULL ||
! 164: hyper_reset(sc->sc_fb, scode, fbr) != 0) {
! 165: printf(": can't map framebuffer\n");
! 166: return;
! 167: }
! 168: }
! 169:
! 170: diofb_end_attach(self, &hyper_accessops, sc->sc_fb,
! 171: scode == conscode, NULL);
! 172: }
! 173:
! 174: /*
! 175: * Initialize hardware and display routines.
! 176: */
! 177: int
! 178: hyper_reset(struct diofb *fb, int scode, struct diofbreg *fbr)
! 179: {
! 180: volatile struct hyboxfb *hy = (struct hyboxfb *)fbr;
! 181: int rc;
! 182:
! 183: if ((rc = diofb_fbinquire(fb, scode, fbr)) != 0)
! 184: return (rc);
! 185:
! 186: fb->bmv = diofb_mono_windowmove;
! 187:
! 188: fb->ri.ri_depth = 1; /* do not fake a 8bpp frame buffer */
! 189: diofb_fbsetup(fb);
! 190:
! 191: /* enable display */
! 192: hy->nblank = DISP_VIDEO_ENABLE | DISP_SYNC_ENABLE;
! 193:
! 194: return (0);
! 195: }
! 196:
! 197: int
! 198: hyper_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
! 199: {
! 200: struct diofb *fb = v;
! 201: struct wsdisplay_fbinfo *wdf;
! 202:
! 203: switch (cmd) {
! 204: case WSDISPLAYIO_GTYPE:
! 205: *(u_int *)data = WSDISPLAY_TYPE_HYPERION;
! 206: break;
! 207: case WSDISPLAYIO_SMODE:
! 208: fb->mapmode = *(u_int *)data;
! 209: break;
! 210: case WSDISPLAYIO_GINFO:
! 211: wdf = (void *)data;
! 212: wdf->width = fb->ri.ri_width;
! 213: wdf->height = fb->ri.ri_height;
! 214: wdf->depth = fb->ri.ri_depth;
! 215: wdf->cmsize = 0;
! 216: break;
! 217: case WSDISPLAYIO_LINEBYTES:
! 218: *(u_int *)data = fb->ri.ri_stride;
! 219: break;
! 220: case WSDISPLAYIO_GVIDEO:
! 221: case WSDISPLAYIO_SVIDEO:
! 222: case WSDISPLAYIO_GETCMAP:
! 223: case WSDISPLAYIO_PUTCMAP:
! 224: break;
! 225: default:
! 226: return (-1);
! 227: }
! 228:
! 229: return (0);
! 230: }
! 231:
! 232: void
! 233: hyper_burner(void *v, u_int on, u_int flags)
! 234: {
! 235: struct diofb *fb = v;
! 236: volatile struct hyboxfb *hy = (struct hyboxfb *)fb->regkva;
! 237:
! 238: if (on) {
! 239: hy->nblank = DISP_VIDEO_ENABLE | DISP_SYNC_ENABLE;
! 240: } else {
! 241: if (flags & WSDISPLAY_BURN_VBLANK)
! 242: hy->nblank = 0;
! 243: else
! 244: hy->nblank = DISP_SYNC_ENABLE;
! 245: }
! 246: }
! 247:
! 248: /*
! 249: * Hyperion console support
! 250: */
! 251:
! 252: void
! 253: hypercninit()
! 254: {
! 255: hyper_reset(&diofb_cn, conscode, (struct diofbreg *)conaddr);
! 256: diofb_cnattach(&diofb_cn);
! 257: }
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