1 /* $NetBSD: gpioreg.h,v 1.4 2006/03/13 15:31:11 shige Exp $ */ 2 3 /* 4 * Copyright 2001 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Simon Burge and Eduardo Horvath for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 #ifndef _IBM4XX_GPIOREG_H_ 39 #define _IBM4XX_GPIOREG_H_ 40 41 /* 42 * GPIO Registers 43 */ 44 45 /* 46 * GPIO ODR Control Logic: 47 * ODR OR Out TCR TS_Ctrl Module I/O 3-State Driver 48 * 0 X X 0 0 Forced to high impedance state 49 * 0 0 0 1 1 Drive 0 50 * 0 1 1 1 1 Drive 1 51 * 1 0 0 X 1 Drive 0 52 * 1 1 0 X 0 Forced to high impedance state 53 */ 54 55 /* GPIO pins */ 56 #define GPIO_NPINS (24) 57 58 /* GPIO Registers 0x00-0x7f */ 59 #define GPIO_NREG (0x80) 60 61 #define GPIO_PIN_SHIFT(n) (31 - n) 62 63 /* Offset */ 64 #define GPIO_OR (0x00) /* Output */ 65 #define GPIO_TCR (0x04) /* Three-State Control */ 66 #define GPIO_ODR (0x18) /* Open Drain */ 67 #define GPIO_IR (0x1c) /* Input */ 68 69 #endif /* _IBM4XX_GPIOREG_H_ */ 70