xref: /csrg-svn/sys/hp300/dev/grf_tc.c (revision 64472)
141480Smckusick /*
241480Smckusick  * Copyright (c) 1988 University of Utah.
363151Sbostic  * Copyright (c) 1990, 1993
463151Sbostic  *	The Regents of the University of California.  All rights reserved.
541480Smckusick  *
641480Smckusick  * This code is derived from software contributed to Berkeley by
741480Smckusick  * the Systems Programming Group of the University of Utah Computer
841480Smckusick  * Science Department.
941480Smckusick  *
1041480Smckusick  * %sccs.include.redist.c%
1141480Smckusick  *
12*64472Shibler  * from: Utah $Hdr: grf_tc.c 1.20 93/08/13$
1341480Smckusick  *
14*64472Shibler  *	@(#)grf_tc.c	8.2 (Berkeley) 09/09/93
1541480Smckusick  */
1641480Smckusick 
1741480Smckusick #include "grf.h"
1841480Smckusick #if NGRF > 0
1941480Smckusick 
2041480Smckusick /*
2153929Shibler  * Graphics routines for TOPCAT and CATSEYE frame buffers
2241480Smckusick  */
2356507Sbostic #include <sys/param.h>
2456507Sbostic #include <sys/errno.h>
2541480Smckusick 
2656507Sbostic #include <hp/dev/grfioctl.h>
2756507Sbostic #include <hp/dev/grfvar.h>
28*64472Shibler #include <hp/dev/grfreg.h>
2956507Sbostic #include <hp300/dev/grf_tcreg.h>
3041480Smckusick 
3156507Sbostic #include <machine/cpu.h>
3241480Smckusick 
3341480Smckusick /*
3441480Smckusick  * Initialize hardware.
3541480Smckusick  * Must fill in the grfinfo structure in g_softc.
3641480Smckusick  * Returns 0 if hardware not present, non-zero ow.
3741480Smckusick  */
3841480Smckusick tc_init(gp, addr)
3941480Smckusick 	struct grf_softc *gp;
4049312Shibler 	caddr_t addr;
4141480Smckusick {
4241480Smckusick 	register struct tcboxfb *tp = (struct tcboxfb *) addr;
4341480Smckusick 	struct grfinfo *gi = &gp->g_display;
4441480Smckusick 	volatile u_char *fbp;
4541480Smckusick 	u_char save;
4641480Smckusick 	int fboff;
4749312Shibler 	extern caddr_t sctopa(), iomap();
4841480Smckusick 
4949312Shibler 	if (ISIIOVA(addr))
5049312Shibler 		gi->gd_regaddr = (caddr_t) IIOP(addr);
5149312Shibler 	else
5249312Shibler 		gi->gd_regaddr = sctopa(vatosc(addr));
5341480Smckusick 	gi->gd_regsize = 0x10000;
5441480Smckusick 	gi->gd_fbwidth = (tp->fbwmsb << 8) | tp->fbwlsb;
5541480Smckusick 	gi->gd_fbheight = (tp->fbhmsb << 8) | tp->fbhlsb;
5649312Shibler 	gi->gd_fbsize = gi->gd_fbwidth * gi->gd_fbheight;
5741480Smckusick 	fboff = (tp->fbomsb << 8) | tp->fbolsb;
5849312Shibler 	gi->gd_fbaddr = (caddr_t) (*((u_char *)addr + fboff) << 16);
5949312Shibler 	if (gi->gd_regaddr >= (caddr_t)DIOIIBASE) {
6049312Shibler 		/*
6149312Shibler 		 * For DIO II space the fbaddr just computed is the offset
6249312Shibler 		 * from the select code base (regaddr) of the framebuffer.
6349312Shibler 		 * Hence it is also implicitly the size of the register set.
6449312Shibler 		 */
6549312Shibler 		gi->gd_regsize = (int) gi->gd_fbaddr;
6649312Shibler 		gi->gd_fbaddr += (int) gi->gd_regaddr;
6749312Shibler 		gp->g_regkva = addr;
6849312Shibler 		gp->g_fbkva = addr + gi->gd_regsize;
6949312Shibler 	} else {
7049312Shibler 		/*
7149312Shibler 		 * For DIO space we need to map the seperate framebuffer.
7249312Shibler 		 */
7349312Shibler 		gp->g_regkva = addr;
7449312Shibler 		gp->g_fbkva = iomap(gi->gd_fbaddr, gi->gd_fbsize);
7549312Shibler 	}
7641480Smckusick 	gi->gd_dwidth = (tp->dwmsb << 8) | tp->dwlsb;
7741480Smckusick 	gi->gd_dheight = (tp->dhmsb << 8) | tp->dhlsb;
7841480Smckusick 	gi->gd_planes = tp->num_planes;
7941480Smckusick 	gi->gd_colors = 1 << gi->gd_planes;
8041480Smckusick 	if (gi->gd_colors == 1) {
8149312Shibler 		fbp = (u_char *) gp->g_fbkva;
8241480Smckusick 		tp->wen = ~0;
8341480Smckusick 		tp->prr = 0x3;
8441480Smckusick 		tp->fben = ~0;
8541480Smckusick 		save = *fbp;
8641480Smckusick 		*fbp = 0xFF;
8741480Smckusick 		gi->gd_colors = *fbp + 1;
8841480Smckusick 		*fbp = save;
8941480Smckusick 	}
9041480Smckusick 	return(1);
9141480Smckusick }
9241480Smckusick 
9341480Smckusick /*
9441480Smckusick  * Change the mode of the display.
9541480Smckusick  * Right now all we can do is grfon/grfoff.
9641480Smckusick  * Return a UNIX error number or 0 for success.
9741480Smckusick  * Function may not be needed anymore.
9841480Smckusick  */
9941480Smckusick /*ARGSUSED*/
100*64472Shibler tc_mode(gp, cmd, data)
10141480Smckusick 	struct grf_softc *gp;
102*64472Shibler 	caddr_t data;
10341480Smckusick {
10441480Smckusick 	int error = 0;
10541480Smckusick 
10641480Smckusick 	switch (cmd) {
10741480Smckusick 	case GM_GRFON:
10841480Smckusick 	case GM_GRFOFF:
10941480Smckusick 		break;
110*64472Shibler 
111*64472Shibler 	/*
112*64472Shibler 	 * Remember UVA of mapping for GCDESCRIBE.
113*64472Shibler 	 * XXX this should be per-process.
114*64472Shibler 	 */
115*64472Shibler 	case GM_MAP:
116*64472Shibler 		gp->g_data = data;
117*64472Shibler 		break;
118*64472Shibler 
119*64472Shibler 	case GM_UNMAP:
120*64472Shibler 		gp->g_data = 0;
121*64472Shibler 		break;
122*64472Shibler 
123*64472Shibler #ifdef HPUXCOMPAT
124*64472Shibler 	case GM_DESCRIBE:
125*64472Shibler 	{
126*64472Shibler 		struct grf_fbinfo *fi = (struct grf_fbinfo *)data;
127*64472Shibler 		struct grfinfo *gi = &gp->g_display;
128*64472Shibler 		int i, j;
129*64472Shibler 
130*64472Shibler 		/* feed it what HP-UX expects */
131*64472Shibler 		fi->id = gi->gd_id;
132*64472Shibler 		fi->mapsize = gi->gd_fbsize;
133*64472Shibler 		fi->dwidth = gi->gd_dwidth;
134*64472Shibler 		fi->dlength = gi->gd_dheight;
135*64472Shibler 		fi->width = gi->gd_fbwidth;
136*64472Shibler 		fi->length = gi->gd_fbheight;
137*64472Shibler 		fi->bpp = NBBY;
138*64472Shibler 		fi->xlen = (fi->width * fi->bpp) / NBBY;
139*64472Shibler 		fi->npl = gi->gd_planes;
140*64472Shibler 		fi->bppu = fi->npl;
141*64472Shibler 		fi->nplbytes = fi->xlen * ((fi->length * fi->bpp) / NBBY);
142*64472Shibler 		/* XXX */
143*64472Shibler 		switch (gp->g_sw->gd_hwid) {
144*64472Shibler 		case GID_HRCCATSEYE:
145*64472Shibler 			bcopy("HP98550", fi->name, 8);
146*64472Shibler 			break;
147*64472Shibler 		case GID_LRCATSEYE:
148*64472Shibler 			bcopy("HP98549", fi->name, 8);
149*64472Shibler 			break;
150*64472Shibler 		case GID_HRMCATSEYE:
151*64472Shibler 			bcopy("HP98548", fi->name, 8);
152*64472Shibler 			break;
153*64472Shibler 		case GID_TOPCAT:
154*64472Shibler 			switch (gi->gd_colors) {
155*64472Shibler 			case 64:
156*64472Shibler 				bcopy("HP98547", fi->name, 8);
157*64472Shibler 				break;
158*64472Shibler 			case 16:
159*64472Shibler 				bcopy("HP98545", fi->name, 8);
160*64472Shibler 				break;
161*64472Shibler 			case 2:
162*64472Shibler 				bcopy("HP98544", fi->name, 8);
163*64472Shibler 				break;
164*64472Shibler 			}
165*64472Shibler 			break;
166*64472Shibler 		}
167*64472Shibler 		fi->attr = 2;	/* HW block mover */
168*64472Shibler 		/*
169*64472Shibler 		 * If mapped, return the UVA where mapped.
170*64472Shibler 		 */
171*64472Shibler 		if (gp->g_data) {
172*64472Shibler 			fi->regbase = gp->g_data;
173*64472Shibler 			fi->fbbase = fi->regbase + gp->g_display.gd_regsize;
174*64472Shibler 		} else {
175*64472Shibler 			fi->fbbase = 0;
176*64472Shibler 			fi->regbase = 0;
177*64472Shibler 		}
178*64472Shibler 		for (i = 0; i < 6; i++)
179*64472Shibler 			fi->regions[i] = 0;
180*64472Shibler 		break;
181*64472Shibler 	}
182*64472Shibler #endif
183*64472Shibler 
18441480Smckusick 	default:
18541480Smckusick 		error = EINVAL;
18641480Smckusick 		break;
18741480Smckusick 	}
18841480Smckusick 	return(error);
18941480Smckusick }
19041480Smckusick #endif
191