1 files changed, 612 insertions, 0 deletions

diff --git a/sys/arch/arm32/mainbus/pms.c b/sys/arch/arm32/mainbus/pms.c
new file mode 100644
index 00000000000..8339e1ab8a0
--- /dev/null
+++ b/sys/arch/arm32/mainbus/pms.c
@@ -0,0 +1,612 @@
+/* $NetBSD: pms.c,v 1.1 1996/03/28 21:50:19 mark Exp $ */
+
+/*-
+ * Copyright (c) 1996 D.C. Tsen
+ * Copyright (c) 1994 Charles Hannum.
+ * Copyright (c) 1992, 1993 Erik Forsberg.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the RiscBSD team.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *	from:pms.c,v 1.24 1995/12/24 02:30:28 mycroft Exp
+ */
+
+/*
+ * Ported from 386 version of PS/2 mouse driver.
+ * D.C. Tsen
+ */
+
+#include "pms.h"
+#if NPMS > 1
+#error Only one PS/2 style mouse may be configured into your system.
+#endif
+
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/systm.h>
+#include <sys/buf.h>
+#include <sys/malloc.h>
+#include <sys/ioctl.h>
+#include <sys/tty.h>
+#include <sys/file.h>
+#include <sys/select.h>
+#include <sys/proc.h>
+#include <sys/signalvar.h>
+#include <sys/vnode.h>
+#include <sys/device.h>
+
+#include <machine/cpu.h>
+#include <machine/katelib.h>
+#include <machine/irqhandler.h>
+#include <machine/iomd.h>
+#include <machine/mouse.h>
+#include <arm32/mainbus/mainbus.h>
+
+/* mouse commands */
+#define	PMS_SET_SCALE11	0xe6	/* set scaling 1:1 */
+#define	PMS_SET_SCALE21 0xe7	/* set scaling 2:1 */
+#define	PMS_SET_RES	0xe8	/* set resolution */
+#define	PMS_GET_SCALE	0xe9	/* get scaling factor */
+#define	PMS_SET_STREAM	0xea	/* set streaming mode */
+#define	PMS_SET_SAMPLE	0xf3	/* set sampling rate */
+#define	PMS_DEV_ENABLE	0xf4	/* mouse on */
+#define	PMS_DEV_DISABLE	0xf5	/* mouse off */
+#define	PMS_RESET	0xff	/* reset */
+
+#define	PMS_CHUNK	128	/* chunk size for read */
+#define	PMS_BSIZE	(20*64)	/* buffer size */
+
+struct pms_softc {		/* driver status information */
+	struct device sc_dev;
+	irqhandler_t sc_ih;
+
+	struct proc *proc;
+	struct clist sc_q;
+	struct selinfo sc_rsel;
+	u_int sc_state;	/* mouse driver state */
+#define	PMS_OPEN	0x01	/* device is open */
+#define	PMS_ASLP	0x02	/* waiting for mouse data */
+	u_int sc_status;	/* mouse button status */
+	int sc_x, sc_y;		/* accumulated motion in the X,Y axis */
+	int boundx, boundy, bounda, boundb;	/* Bounding box.  x,y is bottom left */
+	int origx, origy;
+	int lastx, lasty, lastb;
+};
+
+int pmsprobe __P((struct device *, void *, void *));
+void pmsattach __P((struct device *, struct device *, void *));
+int pmsintr __P((void *));
+
+struct cfattach pms_ca = {
+	sizeof(struct pms_softc), pmsprobe, pmsattach
+};
+
+struct cfdriver	pms_cd = {
+	NULL, "pms", DV_DULL
+};
+
+#define	PMSUNIT(dev)	(minor(dev))
+
+static inline void
+pms_flush()
+{
+	while (inb(IOMD_MSCR) & 0x20) {
+		delay(6);
+		(void) inb(IOMD_MSDATA);
+		delay(6);
+		(void) inb(IOMD_MSDATA);
+		delay(6);
+		(void) inb(IOMD_MSDATA);
+	}
+}
+
+static void
+cmd_mouse(unsigned char cmd)
+{
+	unsigned char c;
+	int i = 0;
+	int retry = 10;
+
+	for (i = 0; i < 1000; i++) {
+		if (inb(IOMD_MSCR) & 0x80)
+			break;
+		delay(2);
+	}
+	if (i == 1000)
+		printf("Mouse transmit not ready\n");
+
+resend:
+	outb(IOMD_MSDATA, cmd);
+	delay(2);
+	c = inb(IOMD_MSCR) & (unsigned char) 0xff;
+	while (!(c & (unsigned char) 0x20)) {
+		delay(1);
+		c = inb(IOMD_MSCR);
+	}
+
+	delay(10000);
+
+	c = inb(IOMD_MSDATA) & 0xff;
+	if ((c == 0xFA) || (c == 0xEE))
+		return;
+
+	if (--retry) {
+		pms_flush();
+		goto resend;
+	}
+
+	printf("Mouse cmd failed, cmd = %x, status = %x\n", cmd, c);
+	return;
+}
+
+int
+pmsprobe(parent, match, aux)
+	struct device *parent;
+	void *match, *aux;
+{
+	/*struct mainbus_attach_args *mb = aux;*/
+	int i, j;
+	int mid;
+	int id;
+
+/* Make sure we have an IOMD we understand */
+    
+	id = ReadByte(IOMD_ID0) | (ReadByte(IOMD_ID1) << 8);
+
+/* So far I only know about this IOMD */
+
+	switch (id) {
+	case RPC600_IOMD_ID:
+		return(0);
+		break;
+	case RC7500_IOC_ID:
+		break;
+	default:
+		printf("pms: Unknown IOMD id=%04x", id);
+		return(0);
+		break;
+	}
+
+	outb(IOMD_MSCR, 0x08);	/* enable the mouse */
+
+	i = 0;
+	while ((inb(IOMD_MSCR) & 0x03) != 0x03) {
+		if (i++ > 10) {
+			printf("Mouse not found, status = <%x>.\n", inb(IOMD_MSCR));
+			return(0);
+		}
+		pms_flush();
+		delay(2);
+		outb(IOMD_MSCR, 0x08);
+	}
+
+	pms_flush();
+
+	/*
+	 * Disable, reset and enable the mouse.
+	 */
+	cmd_mouse(PMS_DEV_DISABLE);
+	cmd_mouse(PMS_RESET);
+	delay(300000);
+	j = 10;
+	i = 0;
+	while ((mid = inb(IOMD_MSDATA)) != 0xAA) {
+		if (++i > 500) {
+			if (--j < 0) {
+				printf("Mouse Reset failed, status = <%x>.\n", mid);
+				return(0);
+			}
+			pms_flush();
+			cmd_mouse(PMS_RESET);
+			i = 0;
+		}
+		delay(100000);
+	}
+	mid = inb(IOMD_MSDATA);
+#if 0
+	cmd_mouse(PMS_SET_RES);
+	cmd_mouse(3);		/* 8 counts/mm */
+	cmd_mouse(PMS_SET_SCALE21);
+	cmd_mouse(PMS_SET_SAMPLE);
+	cmd_mouse(100);	/* 100 samples/sec */
+	cmd_mouse(PMS_SET_STREAM);
+#endif
+	cmd_mouse(PMS_DEV_ENABLE);
+	return 1;
+}
+
+void
+pmsattach(parent, self, aux)
+	struct device *parent, *self;
+	void *aux;
+{
+	struct pms_softc *sc = (void *)self;
+	struct mainbus_attach_args *mb = aux;
+
+	printf("\n");
+
+	/* Other initialization was done by pmsprobe. */
+	sc->sc_state = 0;
+	sc->origx = 0;
+	sc->origy = 0;
+	sc->boundx = -4095;
+	sc->boundy = -4095;
+	sc->bounda = 4096;
+	sc->boundb = 4096;
+
+	sc->sc_ih.ih_func = pmsintr;
+	sc->sc_ih.ih_arg = sc;
+	sc->sc_ih.ih_level = IPL_TTY;
+	sc->sc_ih.ih_name = "pms";
+	if (mb->mb_irq != IRQUNK)
+		sc->sc_ih.ih_num = mb->mb_irq;
+	else
+#ifdef RC7500
+		sc->sc_ih.ih_num = IRQ_MSDRX;
+#else
+		panic("pms: No IRQ specified for pms interrupt handler\n");
+#endif
+}
+
+int
+pmsopen(dev, flag, mode, p)
+	dev_t dev;
+	int flag;
+	int mode;
+	struct proc *p;
+{
+	int unit = PMSUNIT(dev);
+	struct pms_softc *sc;
+
+	if (unit >= pms_cd.cd_ndevs)
+		return ENXIO;
+	sc = pms_cd.cd_devs[unit];
+	if (!sc)
+		return ENXIO;
+
+	if (sc->sc_state & PMS_OPEN)
+		return EBUSY;
+
+	if (clalloc(&sc->sc_q, PMS_BSIZE, 0) == -1)
+		return ENOMEM;
+
+	sc->proc = p;
+	sc->sc_state |= PMS_OPEN;
+	sc->sc_status = 0;
+	sc->sc_x = sc->sc_y = 0;
+	sc->lastx = -1;
+	sc->lasty = -1;
+	sc->lastb = -1;
+
+	if (irq_claim(IRQ_INSTRUCT, &sc->sc_ih) == -1)
+		panic("Cannot claim MOUSE IRQ\n");
+
+	return 0;
+}
+
+int
+pmsclose(dev, flag, mode, p)
+	dev_t dev;
+	int flag;
+	int mode;
+	struct proc *p;
+{
+	struct pms_softc *sc = pms_cd.cd_devs[PMSUNIT(dev)];
+
+	if (irq_release(IRQ_INSTRUCT, &sc->sc_ih) != 0)
+		panic("Cannot release MOUSE IRQ\n");
+ 
+	sc->proc = NULL;
+	sc->sc_state &= ~PMS_OPEN;
+	sc->sc_x = sc->sc_y = 0;
+
+	clfree(&sc->sc_q);
+
+	return 0;
+}
+
+int
+pmsread(dev, uio, flag)
+	dev_t dev;
+	struct uio *uio;
+	int flag;
+{
+	struct pms_softc *sc = pms_cd.cd_devs[PMSUNIT(dev)];
+	int s;
+	int error = 0;
+	size_t length;
+	u_char buffer[PMS_CHUNK];
+
+	/* Block until mouse activity occured. */
+
+	s = spltty();
+	while (sc->sc_q.c_cc == 0) {
+		if (flag & IO_NDELAY) {
+			splx(s);
+			return EWOULDBLOCK;
+		}
+		sc->sc_state |= PMS_ASLP;
+		if (error = tsleep((caddr_t)sc, (PZERO | PCATCH), "pmsread", 0)) {
+			sc->sc_state &= ~PMS_ASLP;
+			splx(s);
+			return error;
+		}
+	}
+
+	/* Transfer as many chunks as possible. */
+
+	while (sc->sc_q.c_cc > 0 && uio->uio_resid > 0) {
+		length = min(sc->sc_q.c_cc, uio->uio_resid);
+		if (length > sizeof(buffer))
+			length = sizeof(buffer);
+
+		/* Remove a small chunk from the input queue. */
+		(void) q_to_b(&sc->sc_q, buffer, length);
+
+		/* Copy the data to the user process. */
+		if (error = uiomove(buffer, length, uio))
+			break;
+	}
+	splx(s);
+
+	return error;
+}
+
+int
+pmsioctl(dev, cmd, addr, flag, p)
+	dev_t dev;
+	u_long cmd;
+	caddr_t addr;
+	int flag;
+	struct proc *p;
+{
+	struct pms_softc *sc = pms_cd.cd_devs[PMSUNIT(dev)];
+	struct mouseinfo info;
+	int s;
+	int error = 0;
+
+	s = spltty();
+
+	switch (cmd) {
+	case MOUSEIOC_SETSTATE:
+		printf("MOUSEIOC_SETSTATE called\n");
+		break;
+	case MOUSEIOC_WRITEX:
+		sc->sc_x = *(int *) addr;
+		break;
+	case MOUSEIOC_WRITEY:
+		sc->sc_y = *(int *) addr;
+		break;
+	case MOUSEIOC_SETBOUNDS:
+	{
+		register struct mouse_boundingbox *bo = (void *) addr;
+		sc->boundx = bo->x; sc->boundy = bo->y;
+		sc->bounda = bo->a; sc->boundb = bo->b;
+		break;
+	}
+	case MOUSEIOC_SETORIGIN:
+	{
+		register struct mouse_origin *oo = (void *) addr;
+		sc->origx = oo->x;
+		sc->origy = oo->y;
+		break;
+	}
+	case MOUSEIOC_GETBOUNDS:
+	{
+		register struct mouse_boundingbox *bo = (void *) addr;
+		bo->x = sc->boundx; bo->y = sc->boundy;
+		bo->a = sc->bounda; bo->b = sc->boundb;
+		break;
+	}
+	case MOUSEIOC_GETORIGIN:
+	{
+		register struct mouse_origin *oo = (void *) addr;
+		oo->x = sc->origx;
+		oo->y = sc->origy;
+		break;
+	}
+	case MOUSEIOC_GETSTATE:
+		printf("MOUSEIOC_GETSTATE called\n");
+		/*
+		 * Fall through.
+		 */
+/*	case MOUSEIOCREAD:*/
+
+		info.status = sc->sc_status;
+		if (sc->sc_x || sc->sc_y)
+			info.status |= MOVEMENT;
+
+#if 1
+		info.xmotion = sc->sc_x;
+		info.ymotion = sc->sc_y;
+#else
+		if (sc->sc_x > sc->bounda)
+			info.xmotion = sc->bounda;
+		else if (sc->sc_x < sc->boundx)
+			info.xmotion = sc->boundx;
+		else
+			info.xmotion = sc->sc_x;
+
+		if (sc->sc_y > sc->boundb)
+			info.ymotion = sc->boundb;
+		else if (sc->sc_y < sc->boundy)
+			info.ymotion = sc->boundy;
+		else
+			info.ymotion = sc->sc_y;
+#endif
+
+		/* Reset historical information. */
+		sc->sc_x = sc->sc_y = 0;
+		sc->sc_status &= ~BUTCHNGMASK;
+		ndflush(&sc->sc_q, sc->sc_q.c_cc);
+
+		error = copyout(&info, addr, sizeof(struct mouseinfo));
+		break;
+
+	default:
+		error = EINVAL;
+		break;
+	}
+	splx(s);
+
+	return error;
+}
+
+/* Masks for the first byte of a packet */
+#define PS2LBUTMASK 0x01
+#define PS2RBUTMASK 0x02
+#define PS2MBUTMASK 0x04
+
+#define XNEG_MASK	0x10
+#define YNEG_MASK	0x20
+
+int
+pmsintr(arg)
+	void *arg;
+{
+	struct pms_softc *sc = arg;
+	static int state = 0;
+	static u_char buttons;
+	u_char changed;
+	static int dx, dy;
+	int dosignal = 0;
+	int s;
+	u_char b;
+	struct mousebufrec mbuffer;
+
+	if ((sc->sc_state & PMS_OPEN) == 0) {
+		/* Interrupts are not expected.  Discard the byte. */
+		pms_flush();
+		return(-1);
+	}
+
+	switch (state) {
+
+	case 0:
+		buttons = inb(IOMD_MSDATA);
+		if ((buttons & 0xc0) == 0)
+			++state;
+		break;
+
+	case 1:
+		dx = inb(IOMD_MSDATA);
+		dx = (buttons & XNEG_MASK) ? -dx : dx;
+		++state;
+		break;
+
+	case 2:
+		dy = inb(IOMD_MSDATA);
+		dy = (buttons & YNEG_MASK) ? -dy : dy;
+		state = 0;
+
+		buttons = ((buttons & PS2LBUTMASK) << 2) |
+			  ((buttons & (PS2RBUTMASK | PS2MBUTMASK)) >> 1);
+		/*
+		 * Ahhh, the Xarm server interrupt button bits reversed.
+		 * If bit is set to 1, it means button is not pressed which is
+		 * not what PS/2 mouse button bits said.  Since we are simulating
+		 * the quadmouse, that's not too picky about it.
+		 */
+		buttons ^= BUTSTATMASK;
+		changed = ((buttons ^ sc->sc_status) & BUTSTATMASK) << 3;
+		sc->sc_status = buttons | (sc->sc_status & ~BUTSTATMASK) | changed;
+
+		if (dx || dy || changed) {
+			if (dx < 0)
+				dx = -(256 + dx);
+			if (dy < 0)
+				dy = -(256 + dy);
+
+			/* Update accumulated movements. */
+			sc->sc_x += dx;
+			sc->sc_y += dy;
+
+			if (sc->sc_x > sc->bounda)
+				sc->sc_x = sc->bounda;
+			else if (sc->sc_x < sc->boundx)
+				sc->sc_x = sc->boundx;
+
+			if (sc->sc_y > sc->boundb)
+				sc->sc_y = sc->boundb;
+			else if (sc->sc_y < sc->boundy)
+				sc->sc_y = sc->boundy;
+
+			if (sc->sc_q.c_cc == 0) {
+				dosignal = 1;
+			}
+
+			/* Add this event to the queue. */
+			b = buttons & BUTSTATMASK;
+			mbuffer.status = b | (b ^ sc->lastb) << 3
+				| (((sc->sc_x==sc->lastx) && (sc->sc_y==sc->lasty))?0:0x40);
+			mbuffer.x = sc->sc_x * 2;
+			mbuffer.y = sc->sc_y * 2;
+			microtime(&mbuffer.event_time);
+			s = spltty();
+			(void) b_to_q((char *)&mbuffer, sizeof(mbuffer), &sc->sc_q);
+			(void) splx(s);
+			sc->lastx = sc->sc_x;
+			sc->lasty = sc->sc_y;
+			sc->lastb = b;
+
+			selwakeup(&sc->sc_rsel);
+			if (sc->sc_state & PMS_ASLP) {
+				sc->sc_state &= ~PMS_ASLP;
+				wakeup((caddr_t)sc);
+			}
+			if (dosignal)
+				psignal(sc->proc, SIGIO);
+		}
+
+		break;
+	}
+
+	return(0);
+}
+
+int
+pmsselect(dev, rw, p)
+	dev_t dev;
+	int rw;
+	struct proc *p;
+{
+	struct pms_softc *sc = pms_cd.cd_devs[PMSUNIT(dev)];
+	int s;
+	int ret;
+
+	if (rw == FWRITE)
+		return 0;
+
+	s = spltty();
+	if (!sc->sc_q.c_cc) {
+		selrecord(p, &sc->sc_rsel);
+		ret = 0;
+	} else
+		ret = 1;
+	splx(s);
+
+	return ret;
+}