Remove orphaned i2c_bitbang code, as well as i2c_bitbang and i2cexec

attributes.

1 files changed, 0 insertions, 179 deletions

diff --git a/sys/dev/i2c/i2c_bitbang.c b/sys/dev/i2c/i2c_bitbang.c
deleted file mode 100644
index ba03967c0e8..00000000000
--- a/sys/dev/i2c/i2c_bitbang.c
+++ /dev/null
@@ -1,179 +0,0 @@
-/*	$OpenBSD: i2c_bitbang.c,v 1.1 2004/05/23 17:33:43 grange Exp $	*/
-/*	$NetBSD: i2c_bitbang.c,v 1.1 2003/09/30 00:35:31 thorpej Exp $	*/
-
-/*
- * Copyright (c) 2003 Wasabi Systems, Inc.
- * All rights reserved.
- *
- * Written by Jason R. Thorpe for Wasabi Systems, Inc.
- *
- * 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 for the NetBSD Project by
- *      Wasabi Systems, Inc.
- * 4. The name of Wasabi Systems, Inc. may not be used to endorse
- *    or promote products derived from this software without specific prior
- *    written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
- * 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.
- */
-
-/*
- * Common module for bit-bang'ing an I2C bus.
- */
-
-#include <sys/param.h>
-
-#include <dev/i2c/i2cvar.h>
-#include <dev/i2c/i2c_bitbang.h>
-
-#define	BB_SET(x)	ops->ibo_set_bits(v, (x))
-#define	BB_DIR(x)	ops->ibo_set_dir(v, (x))
-#define	BB_READ		ops->ibo_read_bits(v)
-
-#define	SDA		ops->ibo_bits[I2C_BIT_SDA]	/* i2c signal */
-#define	SCL		ops->ibo_bits[I2C_BIT_SCL]	/* i2c signal */
-#define	OUTPUT		ops->ibo_bits[I2C_BIT_OUTPUT]	/* SDA is output */
-#define	INPUT		ops->ibo_bits[I2C_BIT_INPUT]	/* SDA is input */
-
-/*ARGSUSED*/
-int
-i2c_bitbang_send_start(void *v, int flags, i2c_bitbang_ops_t ops)
-{
-
-	BB_DIR(OUTPUT);
-
-	BB_SET(SDA | SCL);
-	delay(5);		/* bus free time (4.7 uS) */
-	BB_SET(      SCL);
-	delay(4);		/* start hold time (4.0 uS) */
-	BB_SET(        0);
-	delay(5);		/* clock low time (4.7 uS) */
-
-	return (0);
-}
-
-/*ARGSUSED*/
-int
-i2c_bitbang_send_stop(void *v, int flags, i2c_bitbang_ops_t ops)
-{
-
-	BB_DIR(OUTPUT);
-
-	BB_SET(      SCL);
-	delay(4);		/* stop setup time (4.0 uS) */
-	BB_SET(SDA | SCL);
-
-	return (0);
-}
-
-int
-i2c_bitbang_initiate_xfer(void *v, i2c_addr_t addr, int flags,
-    i2c_bitbang_ops_t ops)
-{
-	int i2caddr;
-
-	/* XXX Only support 7-bit addressing for now. */
-	if ((addr & 0x78) == 0x78)
-		return (EINVAL);
-
-	i2caddr = (addr << 1) | ((flags & I2C_F_READ) ? 1 : 0);
-
-	(void) i2c_bitbang_send_start(v, flags, ops);
-	return (i2c_bitbang_write_byte(v, i2caddr, flags & ~I2C_F_STOP, ops));
-}
-
-int
-i2c_bitbang_read_byte(void *v, uint8_t *valp, int flags,
-    i2c_bitbang_ops_t ops)
-{
-	int i;
-	uint8_t val = 0;
-	uint32_t bit;
-
-	BB_DIR(INPUT);
-	BB_SET(SDA      );
-
-	for (i = 0; i < 8; i++) {
-		val <<= 1;
-		BB_SET(SDA | SCL);
-		delay(4);	/* clock high time (4.0 uS) */
-		if (BB_READ & SDA)
-			val |= 1;
-		BB_SET(SDA      );
-		delay(5);	/* clock low time (4.7 uS) */
-	}
-
-	bit = (flags & I2C_F_LAST) ? SDA : 0;
-	BB_DIR(OUTPUT);
-	BB_SET(bit      );
-	delay(1);	/* data setup time (250 nS) */
-	BB_SET(bit | SCL);
-	delay(4);	/* clock high time (4.0 uS) */
-	BB_SET(bit      );
-	delay(5);	/* clock low time (4.7 uS) */
-
-	BB_DIR(INPUT);
-	BB_SET(SDA      );
-	delay(5);
-
-	if ((flags & (I2C_F_STOP | I2C_F_LAST)) == (I2C_F_STOP | I2C_F_LAST))
-		(void) i2c_bitbang_send_stop(v, flags, ops);
-
-	*valp = val;
-	return (0);
-}
-
-int
-i2c_bitbang_write_byte(void *v, uint8_t val, int flags,
-    i2c_bitbang_ops_t ops)
-{
-	uint32_t bit;
-	uint8_t mask;
-	int error;
-
-	BB_DIR(OUTPUT);
-
-	for (mask = 0x80; mask != 0; mask >>= 1) {
-		bit = (val & mask) ? SDA : 0;
-		BB_SET(bit      );
-		delay(1);	/* data setup time (250 nS) */
-		BB_SET(bit | SCL);
-		delay(4);	/* clock high time (4.0 uS) */
-		BB_SET(bit      );
-		delay(5);	/* clock low time (4.7 uS) */
-	}
-
-	BB_DIR(INPUT);
-
-	BB_SET(SDA      );
-	delay(5);
-	BB_SET(SDA | SCL);
-	delay(4);
-	error = (BB_READ & SDA) ? EIO : 0;
-	BB_SET(SDA      );
-	delay(5);
-
-	if (flags & I2C_F_STOP)
-		(void) i2c_bitbang_send_stop(v, flags, ops);
-
-	return (error);
-}