1 files changed, 0 insertions, 323 deletions
diff --git a/sys/dev/iicbus/iicbb.c b/sys/dev/iicbus/iicbb.c
deleted file mode 100644
index 81629bcf2b099..0000000000000
--- a/sys/dev/iicbus/iicbb.c
+++ /dev/null
@@ -1,323 +0,0 @@
-/*-
- * Copyright (c) 1998 Nicolas Souchu
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 AUTHOR OR CONTRIBUTORS 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.
- *
- *	$Id: iicbb.c,v 1.1 1998/10/31 11:31:07 nsouch Exp $
- *
- */
-
-/*
- * Generic I2C bit-banging code
- *
- * Example:
- *
- *	iicbus
- *	 /  \ 
- *    iicbb pcf
- *     |  \
- *   bti2c lpbb
- *
- * From Linux I2C generic interface
- * (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
- *
- * TODO: port Peter's generic bit-banging code <dufault@hda.com>
- */
-
-#include <sys/param.h>
-#include <sys/kernel.h>
-#include <sys/systm.h>
-#include <sys/module.h>
-#include <sys/bus.h>
-#include <sys/conf.h>
-#include <sys/buf.h>
-#include <sys/uio.h>
-#include <sys/malloc.h>
-
-#include <machine/clock.h>
-
-#include <dev/iicbus/iiconf.h>
-#include <dev/iicbus/iicbus.h>
-
-#include <dev/smbus/smbconf.h>
-
-#include "iicbus_if.h"
-#include "iicbb_if.h"
-
-struct iicbb_softc {
-	int dummy;
-};
-
-static int iicbb_probe(device_t);
-static int iicbb_attach(device_t);
-static void iicbb_print_child(device_t, device_t);
-
-static int iicbb_callback(device_t, int, caddr_t);
-static int iicbb_start(device_t, u_char, int);
-static int iicbb_stop(device_t);
-static int iicbb_write(device_t, char *, int, int *, int);
-static int iicbb_read(device_t, char *, int, int *, int, int);
-static int iicbb_reset(device_t, u_char, u_char, u_char *);
-
-static device_method_t iicbb_methods[] = {
-	/* device interface */
-	DEVMETHOD(device_probe,		iicbb_probe),
-	DEVMETHOD(device_attach,	iicbb_attach),
-
-	/* bus interface */
-	DEVMETHOD(bus_print_child,	iicbb_print_child),
-
-	/* iicbus interface */
-	DEVMETHOD(iicbus_callback,	iicbb_callback),
-	DEVMETHOD(iicbus_start,		iicbb_start),
-	DEVMETHOD(iicbus_repeated_start, iicbb_start),
-	DEVMETHOD(iicbus_stop,		iicbb_stop),
-	DEVMETHOD(iicbus_write,		iicbb_write),
-	DEVMETHOD(iicbus_read,		iicbb_read),
-	DEVMETHOD(iicbus_reset,		iicbb_reset),
-
-	{ 0, 0 }
-};
-
-static driver_t iicbb_driver = {
-	"iicbb",
-	iicbb_methods,
-	DRIVER_TYPE_MISC,
-	sizeof(struct iicbb_softc),
-};
-
-static devclass_t iicbb_devclass;
-
-static int iicbb_probe(device_t dev)
-{
-	device_set_desc(dev, "I2C generic bit-banging driver");
-
-	return (0);
-}
-
-static int iicbb_attach(device_t dev)
-{
-	return (0);
-}
-
-static void
-iicbb_print_child(device_t bus, device_t dev)
-{
-	int error;
-	u_char oldaddr;
-
-	/* retrieve the interface I2C address */
-	error = IICBB_RESET(device_get_parent(bus), IIC_FASTEST, 0, &oldaddr);
-	if (error == IIC_ENOADDR) {
-		printf(" on %s%d master-only", device_get_name(bus),
-			device_get_unit(bus));
-
-	} else {
-		/* restore the address */
-		IICBB_RESET(device_get_parent(bus), IIC_FASTEST, oldaddr, NULL);
-
-		printf(" on %s%d addr 0x%x", device_get_name(bus),
-			device_get_unit(bus), oldaddr & 0xff);
-	}
-
-	return;
-}
-
-#define I2C_SET(dev,ctrl,data) \
-	IICBB_SETLINES(device_get_parent(dev), ctrl, data)
-
-#define I2C_GET(dev) (IICBB_GETDATALINE(device_get_parent(dev)))
-
-static int i2c_debug = 0;
-#define I2C_DEBUG(x) if (i2c_debug) (x)
-
-static void iicbb_one(device_t dev)
-{
-	I2C_SET(dev,0,1);
-	I2C_SET(dev,1,1);
-	I2C_SET(dev,0,1);
-	return;
-}
-
-static void iicbb_zero(device_t dev)
-{
-	I2C_SET(dev,0,0);
-	I2C_SET(dev,1,0);
-	I2C_SET(dev,0,0);
-	return;
-}
-
-/*
- * Waiting for ACKNOWLEDGE.
- *
- * When a chip is being addressed or has received data it will issue an
- * ACKNOWLEDGE pulse. Therefore the MASTER must release the DATA line
- * (set it to high level) and then release the CLOCK line.
- * Now it must wait for the SLAVE to pull the DATA line low.
- * Actually on the bus this looks like a START condition so nothing happens
- * because of the fact that the IC's that have not been addressed are doing
- * nothing.
- *
- * When the SLAVE has pulled this line low the MASTER will take the CLOCK
- * line low and then the SLAVE will release the SDA (data) line.
- */
-static int iicbb_ack(device_t dev, int timeout)
-{
-	int noack;
-	int k = timeout/10;
-    
-	I2C_SET(dev,0,1);
-	I2C_SET(dev,1,1);
-
-	do {
-		noack = I2C_GET(dev);
-		if (!noack)
-			break;
-		DELAY(10);		/* XXX wait 10us */
-	} while (k--);
-
-	I2C_SET(dev,0,1);
-	I2C_DEBUG(printf("%c ",noack?'-':'+'));
-
-	return (noack);
-}
-
-static void iicbb_sendbyte(device_t dev, u_char data)
-{
-	int i;
-    
-	I2C_SET(dev,0,0);
-	for (i=7; i>=0; i--)
-		(data&(1<<i)) ? iicbb_one(dev) : iicbb_zero(dev);
-	I2C_DEBUG(printf("w%02x",(int)data));
-	return;
-}
-
-static u_char iicbb_readbyte(device_t dev, int last)
-{
-	int i;
-	unsigned char data=0;
-    
-	I2C_SET(dev,0,1);
-	for (i=7; i>=0; i--) 
-	{
-		I2C_SET(dev,1,1);
-		if (I2C_GET(dev))
-			data |= (1<<i);
-		I2C_SET(dev,0,1);
-	}
-	last ? iicbb_one(dev) : iicbb_zero(dev);
-	I2C_DEBUG(printf("r%02x%c ",(int)data,last?'-':'+'));
-	return data;
-}
-
-static int iicbb_callback(device_t dev, int index, caddr_t data)
-{
-	return (IICBB_CALLBACK(device_get_parent(dev), index, data));
-}
-
-static int iicbb_reset(device_t dev, u_char speed, u_char addr, u_char *oldaddr)
-{
-	return (IICBB_RESET(device_get_parent(dev), speed, addr, oldaddr));
-}
-
-static int iicbb_start(device_t dev, u_char slave, int timeout)
-{
-	int error;
-
-	I2C_DEBUG(printf("<"));
-
-	I2C_SET(dev,0,1);
-	I2C_SET(dev,1,1);
-	I2C_SET(dev,1,0);
-	I2C_SET(dev,0,0);
-
-	/* send address */
-	iicbb_sendbyte(dev, slave);
-
-	/* check for ack */
-	if (iicbb_ack(dev, timeout)) {
-		error = IIC_ENOACK;
-		goto error;
-	}
-
-	return(0);
-
-error:
-	iicbb_stop(dev);
-	return (error);
-}
-
-static int iicbb_stop(device_t dev)
-{
-	I2C_SET(dev,0,0);
-	I2C_SET(dev,1,0);
-	I2C_SET(dev,1,1);
-	I2C_DEBUG(printf(">"));
-	return (0);
-}
-
-static int iicbb_write(device_t dev, char * buf, int len, int *sent,
-			int timeout)
-{
-	int bytes, error = 0;
-
-	bytes = 0;
-	while (len) {
-		/* send byte */
-		iicbb_sendbyte(dev,(u_char)*buf++);
-
-		/* check for ack */
-		if (iicbb_ack(dev, timeout)) {
-			error = IIC_ENOACK;
-			goto error;
-		}
-		bytes ++;
-		len --;
-	}
-
-error:
-	*sent = bytes;
-	return (error);
-}
-
-static int iicbb_read(device_t dev, char * buf, int len, int *read,
-			int last, int delay)
-{
-	int bytes;
-
-	bytes = 0;
-	while (len) {
-		/* XXX should insert delay here */
-		*buf++ = (char)iicbb_readbyte(dev, (len == 1) ? 1 : 0);
-
-		bytes ++;
-		len --;
-	}
-
-	*read = bytes;
-	return (0);
-}
-
-DRIVER_MODULE(iicbb, bti2c, iicbb_driver, iicbb_devclass, 0, 0);
-DRIVER_MODULE(iicbb, lpbb, iicbb_driver, iicbb_devclass, 0, 0);