[unix-history] / usr / src / sys / hp / dev / grf.c

/*
 * Copyright (c) 1988 University of Utah.
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * the Systems Programming Group of the University of Utah Computer
 * Science Department.
 *
 * %sccs.include.redist.c%
 *
 * from: Utah $Hdr: grf.c 1.28 89/08/14$
 *
 *	@(#)grf.c	7.5 (Berkeley) %G%
 */

/*
 * Graphics display driver for the HP300.
 * This is the hardware-independent portion of the driver.
 * Hardware access is through the grfdev routines below.
 */

#include "grf.h"
#if NGRF > 0

#include "param.h"
#include "user.h"
#include "proc.h"
#include "ioctl.h"
#include "file.h"
#include "malloc.h"

#include "device.h"
#include "grfioctl.h"
#include "grfvar.h"

#include "machine/cpu.h"

#ifdef HPUXCOMPAT
#include "../hpux/hpux.h"
#endif

#include "../vm/vm_param.h"
#include "../vm/vm_map.h"
#include "../vm/vm_kern.h"
#include "../vm/vm_page.h"
#include "../vm/vm_pager.h"
#include "specdev.h"
#include "vnode.h"
#include "mman.h"

#include "ite.h"
#if NITE == 0
#define	iteon(u,f)
#define	iteoff(u,f)
#endif

int	grfprobe();
int	tc_init(), tc_mode();
int	gb_init(), gb_mode();
int	rb_init(), rb_mode();
int	dv_init(), dv_mode();

struct grfdev grfdev[] = {
	GID_TOPCAT,	GRFBOBCAT,	tc_init,	tc_mode,
	"topcat",
	GID_GATORBOX,	GRFGATOR,	gb_init,	gb_mode,
	"gatorbox",
	GID_RENAISSANCE,GRFRBOX,	rb_init,	rb_mode,
	"renaissance",
	GID_LRCATSEYE,	GRFCATSEYE,	tc_init,	tc_mode,
	"lo-res catseye",
	GID_HRCCATSEYE,	GRFCATSEYE,	tc_init,	tc_mode,
	"hi-res catseye",
	GID_HRMCATSEYE,	GRFCATSEYE,	tc_init,	tc_mode,
	"hi-res catseye",
	GID_DAVINCI,    GRFDAVINCI,	dv_init,	dv_mode,
	"davinci",
};
int	ngrfdev = sizeof(grfdev) / sizeof(grfdev[0]);

struct	driver grfdriver = { grfprobe, "grf" };
struct	grf_softc grf_softc[NGRF];

#ifdef DEBUG
int grfdebug = 0;
#define GDB_DEVNO	0x01
#define GDB_MMAP	0x02
#define GDB_IOMAP	0x04
#define GDB_LOCK	0x08
#endif

/*
 * XXX: called from ite console init routine.
 * Does just what configure will do later but without printing anything.
 */
grfconfig()
{
	register caddr_t addr;
	register struct hp_hw *hw;
	register struct hp_device *hd, *nhd;

	for (hw = sc_table; hw->hw_type; hw++) {
	        if (hw->hw_type != BITMAP)
			continue;
		/*
		 * Found one, now match up with a logical unit number
		 */
		nhd = NULL;		
		addr = hw->hw_addr;
		for (hd = hp_dinit; hd->hp_driver; hd++) {
			if (hd->hp_driver != &grfdriver || hd->hp_alive)
				continue;
			/*
			 * Wildcarded.  If first, remember as possible match.
			 */
			if (hd->hp_addr == NULL) {
				if (nhd == NULL)
					nhd = hd;
				continue;
			}
			/*
			 * Not wildcarded.
			 * If exact match done searching, else keep looking.
			 */
			if ((caddr_t)sctoaddr(hd->hp_addr) == addr) {
				nhd = hd;
				break;
			}
		}
		/*
		 * Found a match, initialize
		 */
		if (nhd && grfinit(addr, nhd->hp_unit)) {
			nhd->hp_addr = addr;
		}
	}
}

/*
 * Normal init routine called by configure() code
 */
grfprobe(hd)
	struct hp_device *hd;
{
	struct grf_softc *gp = &grf_softc[hd->hp_unit];

	if ((gp->g_flags & GF_ALIVE) == 0 &&
	    !grfinit(hd->hp_addr, hd->hp_unit))
		return(0);
	printf("grf%d: %d x %d ", hd->hp_unit,
	       gp->g_display.gd_dwidth, gp->g_display.gd_dheight);
	if (gp->g_display.gd_colors == 2)
		printf("monochrome");
	else
		printf("%d color", gp->g_display.gd_colors);
	printf(" %s display\n", grfdev[gp->g_type].gd_desc);
	return(1);
}

grfinit(addr, unit)
	caddr_t addr;
{
	struct grf_softc *gp = &grf_softc[unit];
	struct grfreg *gr;
	register struct grfdev *gd;

	gr = (struct grfreg *) addr;
	if (gr->gr_id != GRFHWID)
		return(0);
	for (gd = grfdev; gd < &grfdev[ngrfdev]; gd++)
		if (gd->gd_hardid == gr->gr_id2)
			break;
	if (gd < &grfdev[ngrfdev] && (*gd->gd_init)(gp, addr)) {
		gp->g_display.gd_id = gd->gd_softid;
		gp->g_type = gd - grfdev;
		gp->g_flags = GF_ALIVE;
		return(1);
	}
	return(0);
}

/*ARGSUSED*/
grfopen(dev, flags)
	dev_t dev;
{
	int unit = GRFUNIT(dev);
	register struct grf_softc *gp = &grf_softc[unit];
	int error = 0;

	if (unit >= NGRF || (gp->g_flags & GF_ALIVE) == 0)
		return(ENXIO);
	if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE))
		return(EBUSY);
#ifdef HPUXCOMPAT
	/*
	 * XXX: cannot handle both HPUX and BSD processes at the same time
	 */
	if (u.u_procp->p_flag & SHPUX)
		if (gp->g_flags & GF_BSDOPEN)
			return(EBUSY);
		else
			gp->g_flags |= GF_HPUXOPEN;
	else
		if (gp->g_flags & GF_HPUXOPEN)
			return(EBUSY);
		else
			gp->g_flags |= GF_BSDOPEN;
#endif
	/*
	 * First open.
	 * XXX: always put in graphics mode.
	 */
	error = 0;
	if ((gp->g_flags & GF_OPEN) == 0) {
		gp->g_flags |= GF_OPEN;
		error = grfon(dev);
	}
	return(error);
}

/*ARGSUSED*/
grfclose(dev, flags)
	dev_t dev;
{
	register struct grf_softc *gp = &grf_softc[GRFUNIT(dev)];

	(void) grfoff(dev);
	(void) grfunlock(gp);
	gp->g_flags &= GF_ALIVE;
	return(0);
}

/*ARGSUSED*/
grfioctl(dev, cmd, data, flag)
	dev_t dev;
	caddr_t data;
{
	register struct grf_softc *gp = &grf_softc[GRFUNIT(dev)];
	int error;

#ifdef HPUXCOMPAT
	if (u.u_procp->p_flag & SHPUX)
		return(hpuxgrfioctl(dev, cmd, data, flag));
#endif
	error = 0;
	switch (cmd) {

	/* XXX: compatibility hack */
	case OGRFIOCGINFO:
		bcopy((caddr_t)&gp->g_display, data, sizeof(struct ogrfinfo));
		break;

	case GRFIOCGINFO:
		bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo));
		break;

	case GRFIOCON:
		error = grfon(dev);
		break;

	case GRFIOCOFF:
		error = grfoff(dev);
		break;

	case GRFIOCMAP:
		error = grfmmap(dev, (caddr_t *)data);
		break;

	case GRFIOCUNMAP:
		error = grfunmmap(dev, *(caddr_t *)data);
		break;

	default:
		error = EINVAL;
		break;

	}
	return(error);
}

/*ARGSUSED*/
grfselect(dev, rw)
	dev_t dev;
{
	if (rw == FREAD)
		return(0);
	return(1);
}

grflock(gp, block)
	register struct grf_softc *gp;
	int block;
{
	struct proc *p = u.u_procp;		/* XXX */
	int error;
	extern char devioc[];

#ifdef DEBUG
	if (grfdebug & GDB_LOCK)
		printf("grflock(%d): dev %x flags %x lockpid %x\n",
		       p->p_pid, gp-grf_softc, gp->g_flags,
		       gp->g_lockp ? gp->g_lockp->p_pid : -1);
#endif
#ifdef HPUXCOMPAT
	if (gp->g_pid) {
#ifdef DEBUG
		if (grfdebug & GDB_LOCK)
			printf("  lock[0] %d lockslot %d lock[lockslot] %d\n",
			       gp->g_locks[0], gp->g_lockpslot,
			       gp->g_locks[gp->g_lockpslot]);
#endif
		gp->g_locks[0] = 0;
		if (gp->g_locks[gp->g_lockpslot] == 0) {
			gp->g_lockp = NULL;
			gp->g_lockpslot = 0;
		}
	}
#endif
	if (gp->g_lockp) {
		if (gp->g_lockp == p)
			return(EBUSY);
		if (!block)
			return(EAGAIN);
		do {
			gp->g_flags |= GF_WANTED;
			if (error = tsleep((caddr_t)&gp->g_flags,
					   (PZERO+1) | PCATCH, devioc, 0))
				return (error);
		} while (gp->g_lockp);
	}
	gp->g_lockp = p;
#ifdef HPUXCOMPAT
	if (gp->g_pid) {
		int slot = grffindpid(gp);
#ifdef DEBUG
		if (grfdebug & GDB_LOCK)
			printf("  slot %d\n", slot);
#endif
		gp->g_lockpslot = gp->g_locks[0] = slot;
		gp->g_locks[slot] = 1;
	}
#endif
	return(0);
}

grfunlock(gp)
	register struct grf_softc *gp;
{
#ifdef DEBUG
	if (grfdebug & GDB_LOCK)
		printf("grfunlock(%d): dev %x flags %x lockpid %d\n",
		       u.u_procp->p_pid, gp-grf_softc, gp->g_flags,
		       gp->g_lockp ? gp->g_lockp->p_pid : -1);
#endif
	if (gp->g_lockp != u.u_procp)
		return(EBUSY);
#ifdef HPUXCOMPAT
	if (gp->g_pid) {
#ifdef DEBUG
		if (grfdebug & GDB_LOCK)
			printf("  lock[0] %d lockslot %d lock[lockslot] %d\n",
			       gp->g_locks[0], gp->g_lockpslot,
			       gp->g_locks[gp->g_lockpslot]);
#endif
		gp->g_locks[gp->g_lockpslot] = gp->g_locks[0] = 0;
		gp->g_lockpslot = 0;
	}
#endif
	if (gp->g_flags & GF_WANTED) {
		wakeup((caddr_t)&gp->g_flags); 
		gp->g_flags &= ~GF_WANTED;
	}
	gp->g_lockp = NULL;
	return(0);
}

/*ARGSUSED*/
grfmap(dev, off, prot)
	dev_t dev;
{
	return(grfaddr(&grf_softc[GRFUNIT(dev)], off));
}

#ifdef HPUXCOMPAT

/*ARGSUSED*/
hpuxgrfioctl(dev, cmd, data, flag)
	dev_t dev;
	caddr_t data;
{
	register struct grf_softc *gp = &grf_softc[GRFUNIT(dev)];
	int error;

	error = 0;
	switch (cmd) {

	case GCID:
		*(int *)data = gp->g_display.gd_id;
		break;

	case GCON:
		error = grfon(dev);
		break;

	case GCOFF:
		error = grfoff(dev);
		break;

	case GCLOCK:
		error = grflock(gp, 1);
		break;

	case GCUNLOCK:
		error = grfunlock(gp);
		break;

	case GCAON:
	case GCAOFF:
		break;

	/* GCSTATIC is implied by our implementation */
	case GCSTATIC_CMAP:
	case GCVARIABLE_CMAP:
		break;

	/* map in control regs and frame buffer */
	case GCMAP:
		error = grfmmap(dev, (caddr_t *)data);
		break;

	case GCUNMAP:
		error = grfunmmap(dev, *(caddr_t *)data);
		/* XXX: HP-UX uses GCUNMAP to get rid of GCSLOT memory */
		if (error)
			error = grflckunmmap(dev, *(caddr_t *)data);
		break;

	case GCSLOT:
	{
		struct grf_slot *sp = (struct grf_slot *)data;

		sp->slot = grffindpid(gp);
		if (sp->slot) {
			error = grflckmmap(dev, (caddr_t *)&sp->addr);
			if (error && gp->g_pid) {
				free((caddr_t)gp->g_pid, M_DEVBUF);
				gp->g_pid = NULL;
			}
		} else
			error = EINVAL;		/* XXX */
		break;
	}

	/*
	 * XXX: only used right now to map in rbox control registers
	 * Will be replaced in the future with a real IOMAP interface.
	 */
	case IOMAPMAP:
		error = iommap(dev, (caddr_t *)data);
#if 0
		/*
		 * It may not be worth kludging this (using p_devtmp) to
		 * make this work.  It was an undocumented side-effect
		 * in HP-UX that the mapped address was the return value
		 * of the ioctl.  The only thing I remember that counted
		 * on this behavior was the rbox X10 server.
		 */
		if (!error)
			u.u_r.r_val1 = *(int *)data;	/* XXX: this sux */
#endif
		break;

	case IOMAPUNMAP:
		error = iounmmap(dev, *(caddr_t *)data);
		break;

	default:
		error = EINVAL;
		break;
	}
	return(error);
}

#endif

grfon(dev)
	dev_t dev;
{
	int unit = GRFUNIT(dev);
	struct grf_softc *gp = &grf_softc[unit];

	/*
	 * XXX: iteoff call relies on devices being in same order
	 * as ITEs and the fact that iteoff only uses the minor part
	 * of the dev arg.
	 */
	iteoff(unit, 3);
	return((*grfdev[gp->g_type].gd_mode)
			(gp, (dev&GRFOVDEV) ? GM_GRFOVON : GM_GRFON));
}

grfoff(dev)
	dev_t dev;
{
	int unit = GRFUNIT(dev);
	struct grf_softc *gp = &grf_softc[unit];
	int error;

	(void) grfunmmap(dev, (caddr_t)0);
	error = (*grfdev[gp->g_type].gd_mode)
			(gp, (dev&GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF);
	/* XXX: see comment for iteoff above */
	iteon(unit, 2);
	return(error);
}

grfaddr(gp, off)
	struct grf_softc *gp;
	register int off;
{
	register struct grfinfo *gi = &gp->g_display;

	/* control registers */
	if (off >= 0 && off < gi->gd_regsize)
		return(((u_int)gi->gd_regaddr + off) >> PGSHIFT);

	/* frame buffer */
	if (off >= gi->gd_regsize && off < gi->gd_regsize+gi->gd_fbsize) {
		off -= gi->gd_regsize;
		return(((u_int)gi->gd_fbaddr + off) >> PGSHIFT);
	}
	/* bogus */
	return(-1);
}

#ifdef HPUXCOMPAT
/*
 * Convert a BSD style minor devno to HPUX style.
 * We cannot just create HPUX style nodes as they require 24 bits
 * of minor device number and we only have 8.
 * XXX: This may give the wrong result for remote stats of other
 * machines where device 10 exists.
 */
grfdevno(dev)
	dev_t dev;
{
	int unit = GRFUNIT(dev);
	struct grf_softc *gp = &grf_softc[unit];
	int newdev;

	if (unit >= NGRF || (gp->g_flags&GF_ALIVE) == 0)
		return(bsdtohpuxdev(dev));
	/* magic major number */
	newdev = 12 << 24;
	/* now construct minor number */
	if (gp->g_display.gd_regaddr != (caddr_t)GRFIADDR)
		newdev |= ((u_int)gp->g_display.gd_regaddr-EXTIOBASE) | 0x200;
	if (dev & GRFIMDEV)
		newdev |= 0x02;
	else if (dev & GRFOVDEV)
		newdev |= 0x01;
#ifdef DEBUG
	if (grfdebug & GDB_DEVNO)
		printf("grfdevno: dev %x newdev %x\n", dev, newdev);
#endif
	return(newdev);
}
#endif

grfmmap(dev, addrp)
	dev_t dev;
	caddr_t *addrp;
{
	struct proc *p = u.u_procp;		/* XXX */
	struct grf_softc *gp = &grf_softc[GRFUNIT(dev)];
	int len, error;
	struct vnode vn;
	struct specinfo si;
	int flags;

#ifdef DEBUG
	if (grfdebug & GDB_MMAP)
		printf("grfmmap(%d): addr %x\n", p->p_pid, *addrp);
#endif
	len = gp->g_display.gd_regsize + gp->g_display.gd_fbsize;
	flags = MAP_FILE|MAP_SHARED;
	if (*addrp)
		flags |= MAP_FIXED;
	else
		*addrp = (caddr_t)0x1000000;	/* XXX */
	vn.v_type = VCHR;			/* XXX */
	vn.v_specinfo = &si;			/* XXX */
	vn.v_rdev = dev;			/* XXX */
	error = vm_mmap(u.u_procp->p_map, (vm_offset_t *)addrp,
			(vm_size_t)len, VM_PROT_ALL, flags, (caddr_t)&vn, 0);
	return(error);
}

grfunmmap(dev, addr)
	dev_t dev;
	caddr_t addr;
{
	struct proc *p = u.u_procp;		/* XXX */
	struct grf_softc *gp = &grf_softc[GRFUNIT(dev)];
	vm_size_t size;
	int rv;

#ifdef DEBUG
	if (grfdebug & GDB_MMAP)
		printf("grfunmmap(%d): dev %x addr %x\n", p->p_pid, dev, addr);
#endif
	if (addr == 0)
		return(EINVAL);		/* XXX: how do we deal with this? */
	size = round_page(gp->g_display.gd_regsize + gp->g_display.gd_fbsize);
	rv = vm_deallocate(p->p_map, (vm_offset_t)addr, size);
	return(rv == KERN_SUCCESS ? 0 : EINVAL);
}

#ifdef HPUXCOMPAT
iommap(dev, addrp)
	dev_t dev;
	caddr_t *addrp;
{
	struct proc *p = u.u_procp;		/* XXX */
	struct grf_softc *gp = &grf_softc[GRFUNIT(dev)];

#ifdef DEBUG
	if (grfdebug & (GDB_MMAP|GDB_IOMAP))
		printf("iommap(%d): addr %x\n", p->p_pid, *addrp);
#endif
	return(EINVAL);
}

iounmmap(dev, addr)
	dev_t dev;
	caddr_t addr;
{
	int unit = minor(dev);

#ifdef DEBUG
	if (grfdebug & (GDB_MMAP|GDB_IOMAP))
		printf("iounmmap(%d): id %d addr %x\n",
		       u.u_procp->p_pid, unit, addr);
#endif
	return(0);
}

/*
 * Processes involved in framebuffer mapping via GCSLOT are recorded in
 * an array of pids.  The first element is used to record the last slot used
 * (for faster lookups).  The remaining elements record up to GRFMAXLCK-1
 * process ids.  Returns a slot number between 1 and GRFMAXLCK or 0 if no
 * slot is available. 
 */
grffindpid(gp)
	struct grf_softc *gp;
{
	register short pid, *sp;
	register int i, limit;
	int ni;

	if (gp->g_pid == NULL) {
		gp->g_pid = (short *)
			malloc(GRFMAXLCK * sizeof(short), M_DEVBUF, M_WAITOK);
		bzero((caddr_t)gp->g_pid, GRFMAXLCK * sizeof(short));
	}
	pid = u.u_procp->p_pid;
	ni = limit = gp->g_pid[0];
	for (i = 1, sp = &gp->g_pid[1]; i <= limit; i++, sp++) {
		if (*sp == pid)
			goto done;
		if (*sp == 0)
			ni = i;
	}
	i = ni;
	if (i < limit) {
		gp->g_pid[i] = pid;
		goto done;
	}
	if (++i == GRFMAXLCK)
		return(0);
	gp->g_pid[0] = i;
	gp->g_pid[i] = pid;
done:
#ifdef DEBUG
	if (grfdebug & GDB_LOCK)
		printf("grffindpid(%d): slot %d of %d\n",
		       pid, i, gp->g_pid[0]);
#endif
	return(i);
}

grfrmpid(gp)
	struct grf_softc *gp;
{
	register short pid, *sp;
	register int limit, i;
	int mi;

	if (gp->g_pid == NULL || (limit = gp->g_pid[0]) == 0)
		return;
	pid = u.u_procp->p_pid;
	limit = gp->g_pid[0];
	mi = 0;
	for (i = 1, sp = &gp->g_pid[1]; i <= limit; i++, sp++) {
		if (*sp == pid)
			*sp = 0;
		else if (*sp)
			mi = i;
	}
	i = mi;
	if (i < limit)
		gp->g_pid[0] = i;
#ifdef DEBUG
	if (grfdebug & GDB_LOCK)
		printf("grfrmpid(%d): slot %d of %d\n",
		       pid, sp-gp->g_pid, gp->g_pid[0]);
#endif
}

grflckmmap(dev, addrp)
	dev_t dev;
	caddr_t *addrp;
{
	struct proc *p = u.u_procp;		/* XXX */

#ifdef DEBUG
	if (grfdebug & (GDB_MMAP|GDB_LOCK))
		printf("grflckmmap(%d): addr %x\n",
		       p->p_pid, *addrp);
#endif
	return(EINVAL);
}

grflckunmmap(dev, addr)
	dev_t dev;
	caddr_t addr;
{
	int unit = minor(dev);

#ifdef DEBUG
	if (grfdebug & (GDB_MMAP|GDB_LOCK))
		printf("grflckunmmap(%d): id %d addr %x\n",
		       u.u_procp->p_pid, unit, addr);
#endif
	return(EINVAL);
}
#endif	/* HPUXCOMPAT */

#endif	/* NGRF > 0 */
Commit	Line	Data
60f56dfc KM	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	* %sccs.include.redist.c%
	11	*
	12	* from: Utah $Hdr: grf.c 1.28 89/08/14$
	13	*
22d09b27	14	* @(#)grf.c 7.5 (Berkeley) %G%
60f56dfc KM	15	*/
	16
	17	/*
	18	* Graphics display driver for the HP300.
	19	* This is the hardware-independent portion of the driver.
	20	* Hardware access is through the grfdev routines below.
	21	*/
	22
	23	#include "grf.h"
	24	#if NGRF > 0
	25
	26	#include "param.h"
	27	#include "user.h"
	28	#include "proc.h"
	29	#include "ioctl.h"
	30	#include "file.h"
60f56dfc KM	31	#include "malloc.h"
	32
	33	#include "device.h"
	34	#include "grfioctl.h"
	35	#include "grfvar.h"
	36
	37	#include "machine/cpu.h"
	38
	39	#ifdef HPUXCOMPAT
	40	#include "../hpux/hpux.h"
	41	#endif
	42
22d09b27 KM	43	#include "../vm/vm_param.h"
	44	#include "../vm/vm_map.h"
	45	#include "../vm/vm_kern.h"
	46	#include "../vm/vm_page.h"
	47	#include "../vm/vm_pager.h"
	48	#include "specdev.h"
	49	#include "vnode.h"
	50	#include "mman.h"
	51
60f56dfc KM	52	#include "ite.h"
	53	#if NITE == 0
	54	#define iteon(u,f)
	55	#define iteoff(u,f)
	56	#endif
	57
	58	int grfprobe();
	59	int tc_init(), tc_mode();
	60	int gb_init(), gb_mode();
	61	int rb_init(), rb_mode();
	62	int dv_init(), dv_mode();
	63
	64	struct grfdev grfdev[] = {
	65	GID_TOPCAT, GRFBOBCAT, tc_init, tc_mode,
	66	"topcat",
	67	GID_GATORBOX, GRFGATOR, gb_init, gb_mode,
	68	"gatorbox",
	69	GID_RENAISSANCE,GRFRBOX, rb_init, rb_mode,
	70	"renaissance",
	71	GID_LRCATSEYE, GRFCATSEYE, tc_init, tc_mode,
	72	"lo-res catseye",
	73	GID_HRCCATSEYE, GRFCATSEYE, tc_init, tc_mode,
	74	"hi-res catseye",
	75	GID_HRMCATSEYE, GRFCATSEYE, tc_init, tc_mode,
	76	"hi-res catseye",
	77	GID_DAVINCI, GRFDAVINCI, dv_init, dv_mode,
	78	"davinci",
	79	};
	80	int ngrfdev = sizeof(grfdev) / sizeof(grfdev[0]);
	81
	82	struct driver grfdriver = { grfprobe, "grf" };
	83	struct grf_softc grf_softc[NGRF];
	84
60f56dfc KM	85	#ifdef DEBUG
	86	int grfdebug = 0;
	87	#define GDB_DEVNO 0x01
	88	#define GDB_MMAP 0x02
	89	#define GDB_IOMAP 0x04
	90	#define GDB_LOCK 0x08
	91	#endif
	92
	93	/*
	94	* XXX: called from ite console init routine.
	95	* Does just what configure will do later but without printing anything.
	96	*/
	97	grfconfig()
	98	{
	99	register caddr_t addr;
	100	register struct hp_hw *hw;
	101	register struct hp_device hd, nhd;
	102
	103	for (hw = sc_table; hw->hw_type; hw++) {
	104	if (hw->hw_type != BITMAP)
	105	continue;
	106	/*
	107	* Found one, now match up with a logical unit number
	108	*/
	109	nhd = NULL;
	110	addr = hw->hw_addr;
	111	for (hd = hp_dinit; hd->hp_driver; hd++) {
	112	if (hd->hp_driver != &grfdriver \|\| hd->hp_alive)
	113	continue;
	114	/*
	115	* Wildcarded. If first, remember as possible match.
	116	*/
	117	if (hd->hp_addr == NULL) {
	118	if (nhd == NULL)
	119	nhd = hd;
	120	continue;
	121	}
	122	/*
	123	* Not wildcarded.
	124	* If exact match done searching, else keep looking.
	125	*/
	126	if ((caddr_t)sctoaddr(hd->hp_addr) == addr) {
	127	nhd = hd;
	128	break;
	129	}
	130	}
	131	/*
	132	* Found a match, initialize
	133	*/
	134	if (nhd && grfinit(addr, nhd->hp_unit)) {
	135	nhd->hp_addr = addr;
	136	}
	137	}
	138	}
	139
	140	/*
	141	* Normal init routine called by configure() code
	142	*/
	143	grfprobe(hd)
	144	struct hp_device *hd;
	145	{
	146	struct grf_softc *gp = &grf_softc[hd->hp_unit];
	147
	148	if ((gp->g_flags & GF_ALIVE) == 0 &&
149	!grfinit(hd->hp_addr, hd->hp_unit))
150	return(0);
151	printf("grf%d: %d x %d ", hd->hp_unit,
152	gp->g_display.gd_dwidth, gp->g_display.gd_dheight);
153	if (gp->g_display.gd_colors == 2)
154	printf("monochrome");
155	else
156	printf("%d color", gp->g_display.gd_colors);
157	printf(" %s display\n", grfdev[gp->g_type].gd_desc);
158	return(1);
159	}
160
161	grfinit(addr, unit)
162	caddr_t addr;
163	{
164	struct grf_softc *gp = &grf_softc[unit];
165	struct grfreg *gr;
166	register struct grfdev *gd;
167
168	gr = (struct grfreg *) addr;
169	if (gr->gr_id != GRFHWID)
170	return(0);
171	for (gd = grfdev; gd < &grfdev[ngrfdev]; gd++)
172	if (gd->gd_hardid == gr->gr_id2)
173	break;
174	if (gd < &grfdev[ngrfdev] && (*gd->gd_init)(gp, addr)) {
175	gp->g_display.gd_id = gd->gd_softid;
176	gp->g_type = gd - grfdev;
177	gp->g_flags = GF_ALIVE;
178	return(1);
179	}
180	return(0);
181	}
182
183	/ARGSUSED/
184	grfopen(dev, flags)
185	dev_t dev;
186	{
187	int unit = GRFUNIT(dev);
188	register struct grf_softc *gp = &grf_softc[unit];
189	int error = 0;
190
191	if (unit >= NGRF \|\| (gp->g_flags & GF_ALIVE) == 0)
192	return(ENXIO);
193	if ((gp->g_flags & (GF_OPEN\|GF_EXCLUDE)) == (GF_OPEN\|GF_EXCLUDE))
194	return(EBUSY);
195	#ifdef HPUXCOMPAT
196	/*
197	* XXX: cannot handle both HPUX and BSD processes at the same time
198	*/
199	if (u.u_procp->p_flag & SHPUX)
200	if (gp->g_flags & GF_BSDOPEN)
201	return(EBUSY);
202	else
203	gp->g_flags \|= GF_HPUXOPEN;
204	else
205	if (gp->g_flags & GF_HPUXOPEN)
206	return(EBUSY);
207	else
208	gp->g_flags \|= GF_BSDOPEN;
209	#endif
210	/*
211	* First open.
212	* XXX: always put in graphics mode.
213	*/
214	error = 0;
215	if ((gp->g_flags & GF_OPEN) == 0) {
216	gp->g_flags \|= GF_OPEN;
217	error = grfon(dev);
218	}
219	return(error);
220	}
221
222	/ARGSUSED/
223	grfclose(dev, flags)
224	dev_t dev;
225	{
226	register struct grf_softc *gp = &grf_softc[GRFUNIT(dev)];
227
228	(void) grfoff(dev);
229	(void) grfunlock(gp);
230	gp->g_flags &= GF_ALIVE;
231	return(0);
232	}
233
234	/ARGSUSED/
235	grfioctl(dev, cmd, data, flag)
236	dev_t dev;
237	caddr_t data;
238	{
239	register struct grf_softc *gp = &grf_softc[GRFUNIT(dev)];
240	int error;
241
242	#ifdef HPUXCOMPAT
243	if (u.u_procp->p_flag & SHPUX)
244	return(hpuxgrfioctl(dev, cmd, data, flag));
245	#endif
246	error = 0;
247	switch (cmd) {
248
249	/* XXX: compatibility hack */
250	case OGRFIOCGINFO:
251	bcopy((caddr_t)&gp->g_display, data, sizeof(struct ogrfinfo));
252	break;
253
254	case GRFIOCGINFO:
255	bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo));
256	break;
257
258	case GRFIOCON:
259	error = grfon(dev);
260	break;
261
262	case GRFIOCOFF:
263	error = grfoff(dev);
264	break;
265
60f56dfc KM	266	case GRFIOCMAP:
	267	error = grfmmap(dev, (caddr_t *)data);
	268	break;
	269
	270	case GRFIOCUNMAP:
	271	error = grfunmmap(dev, (caddr_t )data);
	272	break;
60f56dfc KM	273
	274	default:
	275	error = EINVAL;
	276	break;
	277
	278	}
	279	return(error);
	280	}
	281
	282	/ARGSUSED/
	283	grfselect(dev, rw)
	284	dev_t dev;
	285	{
	286	if (rw == FREAD)
	287	return(0);
	288	return(1);
	289	}
	290
	291	grflock(gp, block)
	292	register struct grf_softc *gp;
	293	int block;
	294	{
05d14dfb	295	struct proc p = u.u_procp; / XXX */
339a5f2c KM	296	int error;
	297	extern char devioc[];
	298
60f56dfc KM	299	#ifdef DEBUG
	300	if (grfdebug & GDB_LOCK)
	301	printf("grflock(%d): dev %x flags %x lockpid %x\n",
05d14dfb	302	p->p_pid, gp-grf_softc, gp->g_flags,
60f56dfc KM	303	gp->g_lockp ? gp->g_lockp->p_pid : -1);
	304	#endif
	305	#ifdef HPUXCOMPAT
	306	if (gp->g_pid) {
	307	#ifdef DEBUG
	308	if (grfdebug & GDB_LOCK)
	309	printf(" lock[0] %d lockslot %d lock[lockslot] %d\n",
	310	gp->g_locks[0], gp->g_lockpslot,
	311	gp->g_locks[gp->g_lockpslot]);
	312	#endif
	313	gp->g_locks[0] = 0;
	314	if (gp->g_locks[gp->g_lockpslot] == 0) {
	315	gp->g_lockp = NULL;
	316	gp->g_lockpslot = 0;
	317	}
	318	}
	319	#endif
	320	if (gp->g_lockp) {
05d14dfb	321	if (gp->g_lockp == p)
60f56dfc KM	322	return(EBUSY);
	323	if (!block)
	324	return(EAGAIN);
	325	do {
	326	gp->g_flags \|= GF_WANTED;
339a5f2c KM	327	if (error = tsleep((caddr_t)&gp->g_flags,
	328	(PZERO+1) \| PCATCH, devioc, 0))
	329	return (error);
60f56dfc KM	330	} while (gp->g_lockp);
60f56dfc KM	331	}
05d14dfb	332	gp->g_lockp = p;
60f56dfc KM	333	#ifdef HPUXCOMPAT
	334	if (gp->g_pid) {
	335	int slot = grffindpid(gp);
	336	#ifdef DEBUG
	337	if (grfdebug & GDB_LOCK)
	338	printf(" slot %d\n", slot);
	339	#endif
	340	gp->g_lockpslot = gp->g_locks[0] = slot;
	341	gp->g_locks[slot] = 1;
	342	}
	343	#endif
	344	return(0);
	345	}
	346
	347	grfunlock(gp)
	348	register struct grf_softc *gp;
	349	{
	350	#ifdef DEBUG
	351	if (grfdebug & GDB_LOCK)
	352	printf("grfunlock(%d): dev %x flags %x lockpid %d\n",
	353	u.u_procp->p_pid, gp-grf_softc, gp->g_flags,
	354	gp->g_lockp ? gp->g_lockp->p_pid : -1);
	355	#endif
	356	if (gp->g_lockp != u.u_procp)
	357	return(EBUSY);
	358	#ifdef HPUXCOMPAT
	359	if (gp->g_pid) {
	360	#ifdef DEBUG
	361	if (grfdebug & GDB_LOCK)
	362	printf(" lock[0] %d lockslot %d lock[lockslot] %d\n",
	363	gp->g_locks[0], gp->g_lockpslot,
	364	gp->g_locks[gp->g_lockpslot]);
	365	#endif
	366	gp->g_locks[gp->g_lockpslot] = gp->g_locks[0] = 0;
	367	gp->g_lockpslot = 0;
	368	}
	369	#endif
	370	if (gp->g_flags & GF_WANTED) {
	371	wakeup((caddr_t)&gp->g_flags);
	372	gp->g_flags &= ~GF_WANTED;
	373	}
	374	gp->g_lockp = NULL;
	375	return(0);
	376	}
	377
	378	/ARGSUSED/
	379	grfmap(dev, off, prot)
	380	dev_t dev;
	381	{
	382	return(grfaddr(&grf_softc[GRFUNIT(dev)], off));
	383	}
	384
	385	#ifdef HPUXCOMPAT
	386
	387	/ARGSUSED/
	388	hpuxgrfioctl(dev, cmd, data, flag)
	389	dev_t dev;
	390	caddr_t data;
	391	{
	392	register struct grf_softc *gp = &grf_softc[GRFUNIT(dev)];
	393	int error;
	394
	395	error = 0;
	396	switch (cmd) {
397
398	case GCID:
399	(int )data = gp->g_display.gd_id;
400	break;
401
402	case GCON:
403	error = grfon(dev);
404	break;
405
406	case GCOFF:
407	error = grfoff(dev);
408	break;
409
410	case GCLOCK:
411	error = grflock(gp, 1);
412	break;
413
414	case GCUNLOCK:
415	error = grfunlock(gp);
416	break;
417
418	case GCAON:
419	case GCAOFF:
420	break;
421
422	/* GCSTATIC is implied by our implementation */
423	case GCSTATIC_CMAP:
424	case GCVARIABLE_CMAP:
425	break;
426
60f56dfc KM	427	/* map in control regs and frame buffer */
	428	case GCMAP:
	429	error = grfmmap(dev, (caddr_t *)data);
	430	break;
	431
	432	case GCUNMAP:
	433	error = grfunmmap(dev, (caddr_t )data);
	434	/* XXX: HP-UX uses GCUNMAP to get rid of GCSLOT memory */
	435	if (error)
	436	error = grflckunmmap(dev, (caddr_t )data);
	437	break;
	438
	439	case GCSLOT:
	440	{
	441	struct grf_slot sp = (struct grf_slot )data;
	442
	443	sp->slot = grffindpid(gp);
22d09b27	444	if (sp->slot) {
60f56dfc	445	error = grflckmmap(dev, (caddr_t *)&sp->addr);
22d09b27 KM	446	if (error && gp->g_pid) {
	447	free((caddr_t)gp->g_pid, M_DEVBUF);
	448	gp->g_pid = NULL;
	449	}
	450	} else
60f56dfc KM	451	error = EINVAL; /* XXX */
	452	break;
	453	}
	454
	455	/*
	456	* XXX: only used right now to map in rbox control registers
	457	* Will be replaced in the future with a real IOMAP interface.
	458	*/
	459	case IOMAPMAP:
	460	error = iommap(dev, (caddr_t *)data);
96d5f73d MH	461	#if 0
	462	/*
	463	* It may not be worth kludging this (using p_devtmp) to
	464	* make this work. It was an undocumented side-effect
	465	* in HP-UX that the mapped address was the return value
	466	* of the ioctl. The only thing I remember that counted
	467	* on this behavior was the rbox X10 server.
	468	*/
60f56dfc KM	469	if (!error)
60f56dfc KM	470	u.u_r.r_val1 = (int )data; /* XXX: this sux */
96d5f73d	471	#endif
60f56dfc KM	472	break;
	473
	474	case IOMAPUNMAP:
	475	error = iounmmap(dev, (caddr_t )data);
	476	break;
60f56dfc KM	477
	478	default:
	479	error = EINVAL;
	480	break;
	481	}
	482	return(error);
	483	}
	484
	485	#endif
	486
	487	grfon(dev)
	488	dev_t dev;
	489	{
	490	int unit = GRFUNIT(dev);
	491	struct grf_softc *gp = &grf_softc[unit];
	492
	493	/*
	494	* XXX: iteoff call relies on devices being in same order
	495	* as ITEs and the fact that iteoff only uses the minor part
	496	* of the dev arg.
	497	*/
	498	iteoff(unit, 3);
	499	return((*grfdev[gp->g_type].gd_mode)
	500	(gp, (dev&GRFOVDEV) ? GM_GRFOVON : GM_GRFON));
	501	}
	502
	503	grfoff(dev)
	504	dev_t dev;
	505	{
	506	int unit = GRFUNIT(dev);
	507	struct grf_softc *gp = &grf_softc[unit];
	508	int error;
	509
60f56dfc	510	(void) grfunmmap(dev, (caddr_t)0);
60f56dfc KM	511	error = (*grfdev[gp->g_type].gd_mode)
	512	(gp, (dev&GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF);
	513	/* XXX: see comment for iteoff above */
	514	iteon(unit, 2);
	515	return(error);
	516	}
	517
	518	grfaddr(gp, off)
	519	struct grf_softc *gp;
	520	register int off;
	521	{
60f56dfc KM	522	register struct grfinfo *gi = &gp->g_display;
	523
	524	/* control registers */
	525	if (off >= 0 && off < gi->gd_regsize)
	526	return(((u_int)gi->gd_regaddr + off) >> PGSHIFT);
	527
	528	/* frame buffer */
	529	if (off >= gi->gd_regsize && off < gi->gd_regsize+gi->gd_fbsize) {
	530	off -= gi->gd_regsize;
	531	return(((u_int)gi->gd_fbaddr + off) >> PGSHIFT);
	532	}
60f56dfc KM	533	/* bogus */
	534	return(-1);
	535	}
	536
	537	#ifdef HPUXCOMPAT
	538	/*
	539	* Convert a BSD style minor devno to HPUX style.
	540	* We cannot just create HPUX style nodes as they require 24 bits
	541	* of minor device number and we only have 8.
	542	* XXX: This may give the wrong result for remote stats of other
	543	* machines where device 10 exists.
	544	*/
	545	grfdevno(dev)
	546	dev_t dev;
	547	{
	548	int unit = GRFUNIT(dev);
	549	struct grf_softc *gp = &grf_softc[unit];
	550	int newdev;
	551
	552	if (unit >= NGRF \|\| (gp->g_flags&GF_ALIVE) == 0)
	553	return(bsdtohpuxdev(dev));
	554	/* magic major number */
	555	newdev = 12 << 24;
	556	/* now construct minor number */
60f56dfc KM	557	if (gp->g_display.gd_regaddr != (caddr_t)GRFIADDR)
	558	newdev \|= ((u_int)gp->g_display.gd_regaddr-EXTIOBASE) \| 0x200;
	559	if (dev & GRFIMDEV)
	560	newdev \|= 0x02;
	561	else if (dev & GRFOVDEV)
	562	newdev \|= 0x01;
	563	#ifdef DEBUG
	564	if (grfdebug & GDB_DEVNO)
	565	printf("grfdevno: dev %x newdev %x\n", dev, newdev);
	566	#endif
	567	return(newdev);
	568	}
	569	#endif
	570
60f56dfc KM	571	grfmmap(dev, addrp)
	572	dev_t dev;
	573	caddr_t *addrp;
	574	{
05d14dfb	575	struct proc p = u.u_procp; / XXX */
60f56dfc	576	struct grf_softc *gp = &grf_softc[GRFUNIT(dev)];
22d09b27 KM	577	int len, error;
	578	struct vnode vn;
	579	struct specinfo si;
	580	int flags;
60f56dfc KM	581
	582	#ifdef DEBUG
	583	if (grfdebug & GDB_MMAP)
05d14dfb	584	printf("grfmmap(%d): addr %x\n", p->p_pid, *addrp);
60f56dfc KM	585	#endif
60f56dfc KM	586	len = gp->g_display.gd_regsize + gp->g_display.gd_fbsize;
22d09b27 KM	587	flags = MAP_FILE\|MAP_SHARED;
	588	if (*addrp)
	589	flags \|= MAP_FIXED;
	590	else
	591	addrp = (caddr_t)0x1000000; / XXX */
	592	vn.v_type = VCHR; /* XXX */
	593	vn.v_specinfo = &si; /* XXX */
	594	vn.v_rdev = dev; /* XXX */
	595	error = vm_mmap(u.u_procp->p_map, (vm_offset_t *)addrp,
	596	(vm_size_t)len, VM_PROT_ALL, flags, (caddr_t)&vn, 0);
96d5f73d	597	return(error);
60f56dfc KM	598	}
	599
	600	grfunmmap(dev, addr)
	601	dev_t dev;
	602	caddr_t addr;
60f56dfc	603	{
05d14dfb	604	struct proc p = u.u_procp; / XXX */
22d09b27 KM	605	struct grf_softc *gp = &grf_softc[GRFUNIT(dev)];
	606	vm_size_t size;
	607	int rv;
60f56dfc KM	608
	609	#ifdef DEBUG
	610	if (grfdebug & GDB_MMAP)
22d09b27	611	printf("grfunmmap(%d): dev %x addr %x\n", p->p_pid, dev, addr);
60f56dfc	612	#endif
22d09b27 KM	613	if (addr == 0)
	614	return(EINVAL); /* XXX: how do we deal with this? */
	615	size = round_page(gp->g_display.gd_regsize + gp->g_display.gd_fbsize);
	616	rv = vm_deallocate(p->p_map, (vm_offset_t)addr, size);
	617	return(rv == KERN_SUCCESS ? 0 : EINVAL);
60f56dfc KM	618	}
	619
	620	#ifdef HPUXCOMPAT
	621	iommap(dev, addrp)
	622	dev_t dev;
	623	caddr_t *addrp;
	624	{
05d14dfb	625	struct proc p = u.u_procp; / XXX */
60f56dfc	626	struct grf_softc *gp = &grf_softc[GRFUNIT(dev)];
60f56dfc KM	627
	628	#ifdef DEBUG
	629	if (grfdebug & (GDB_MMAP\|GDB_IOMAP))
05d14dfb	630	printf("iommap(%d): addr %x\n", p->p_pid, *addrp);
60f56dfc	631	#endif
22d09b27	632	return(EINVAL);
60f56dfc KM	633	}
	634
	635	iounmmap(dev, addr)
	636	dev_t dev;
	637	caddr_t addr;
	638	{
22d09b27	639	int unit = minor(dev);
60f56dfc KM	640
	641	#ifdef DEBUG
	642	if (grfdebug & (GDB_MMAP\|GDB_IOMAP))
	643	printf("iounmmap(%d): id %d addr %x\n",
	644	u.u_procp->p_pid, unit, addr);
	645	#endif
22d09b27	646	return(0);
60f56dfc KM	647	}
	648
	649	/*
	650	* Processes involved in framebuffer mapping via GCSLOT are recorded in
	651	* an array of pids. The first element is used to record the last slot used
	652	* (for faster lookups). The remaining elements record up to GRFMAXLCK-1
	653	* process ids. Returns a slot number between 1 and GRFMAXLCK or 0 if no
	654	* slot is available.
	655	*/
	656	grffindpid(gp)
	657	struct grf_softc *gp;
	658	{
	659	register short pid, *sp;
	660	register int i, limit;
	661	int ni;
	662
	663	if (gp->g_pid == NULL) {
	664	gp->g_pid = (short *)
	665	malloc(GRFMAXLCK * sizeof(short), M_DEVBUF, M_WAITOK);
	666	bzero((caddr_t)gp->g_pid, GRFMAXLCK * sizeof(short));
	667	}
	668	pid = u.u_procp->p_pid;
	669	ni = limit = gp->g_pid[0];
	670	for (i = 1, sp = &gp->g_pid[1]; i <= limit; i++, sp++) {
	671	if (*sp == pid)
	672	goto done;
	673	if (*sp == 0)
	674	ni = i;
	675	}
	676	i = ni;
	677	if (i < limit) {
	678	gp->g_pid[i] = pid;
	679	goto done;
	680	}
	681	if (++i == GRFMAXLCK)
	682	return(0);
	683	gp->g_pid[0] = i;
	684	gp->g_pid[i] = pid;
	685	done:
	686	#ifdef DEBUG
	687	if (grfdebug & GDB_LOCK)
	688	printf("grffindpid(%d): slot %d of %d\n",
	689	pid, i, gp->g_pid[0]);
	690	#endif
	691	return(i);
	692	}
	693
	694	grfrmpid(gp)
	695	struct grf_softc *gp;
	696	{
	697	register short pid, *sp;
	698	register int limit, i;
	699	int mi;
	700
	701	if (gp->g_pid == NULL \|\| (limit = gp->g_pid[0]) == 0)
	702	return;
	703	pid = u.u_procp->p_pid;
	704	limit = gp->g_pid[0];
	705	mi = 0;
	706	for (i = 1, sp = &gp->g_pid[1]; i <= limit; i++, sp++) {
	707	if (*sp == pid)
	708	*sp = 0;
	709	else if (*sp)
	710	mi = i;
711	}
712	i = mi;
713	if (i < limit)
714	gp->g_pid[0] = i;
715	#ifdef DEBUG
716	if (grfdebug & GDB_LOCK)
717	printf("grfrmpid(%d): slot %d of %d\n",
718	pid, sp-gp->g_pid, gp->g_pid[0]);
719	#endif
720	}
721
60f56dfc KM	722	grflckmmap(dev, addrp)
	723	dev_t dev;
	724	caddr_t *addrp;
	725	{
05d14dfb	726	struct proc p = u.u_procp; / XXX */
60f56dfc KM	727
	728	#ifdef DEBUG
	729	if (grfdebug & (GDB_MMAP\|GDB_LOCK))
	730	printf("grflckmmap(%d): addr %x\n",
05d14dfb	731	p->p_pid, *addrp);
60f56dfc	732	#endif
22d09b27	733	return(EINVAL);
60f56dfc KM	734	}
	735
	736	grflckunmmap(dev, addr)
	737	dev_t dev;
	738	caddr_t addr;
	739	{
60f56dfc KM	740	int unit = minor(dev);
	741
	742	#ifdef DEBUG
	743	if (grfdebug & (GDB_MMAP\|GDB_LOCK))
	744	printf("grflckunmmap(%d): id %d addr %x\n",
	745	u.u_procp->p_pid, unit, addr);
	746	#endif
60f56dfc KM	747	return(EINVAL);
	748	}
	749	#endif /* HPUXCOMPAT */
22d09b27	750
60f56dfc	751	#endif /* NGRF > 0 */