Home | History | Annotate | Line # | Download | only in dev
      1 /* 	$NetBSD: pstworeg.h,v 1.1 2006/12/02 22:18:47 freza Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2006 Jachym Holecek
      5  * All rights reserved.
      6  *
      7  * Written for DFC Design, s.r.o.
      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  *
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  *
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _VIRTEX_DEV_PSTWOREG_H_
     33 #define _VIRTEX_DEV_PSTWOREG_H_
     34 
     35 /*
     36  * PeeCee style PS2 serdes core. Doesn't save us much work, really.
     37  * Each instance handles one PS2 port, the user has to know if it's
     38  * mouse or keyboard.
     39  */
     40 
     41 #define PSTWO_SIZE 		0x1c
     42 
     43 /* Deal with inconsistent notation in Xilinx datasheets. Whee. */
     44 #define PSTWO_BIT(n) 		(0x80000000U >> (n))
     45 
     46 #define PSTWO_CTRL 		0x0000 		/* wo */
     47 #define CTRL_RESET 		PSTWO_BIT(7) 	/* Component reset when set */
     48 
     49 #define PSTWO_STAT 		0x0004 		/* ro */
     50 #define STAT_TX_BUSY 		PSTWO_BIT(6) 	/* Transmitting byte */
     51 #define STAT_RX_DONE 		PSTWO_BIT(7) 	/* Received a byte */
     52 
     53 #define PSTWO_RX_DATA 		0x0008 		/* ro */
     54 #define PSTWO_TX_DATA 		0x000c 		/* wo */
     55 #define DATA_RECV(x) 		((x) >> 24) 	/* RX */
     56 #define DATA_SEND(x) 		((x) << 24) 	/* TX */
     57 
     58 #define PSTWO_INTR_STAT 	0x0010 		/* ro */
     59 #define PSTWO_INTR_ACK 		0x0014 		/* wo (reads as STAT) */
     60 #define PSTWO_INTR_MSET 	0x0018 		/* wo (reads as MASK) */
     61 #define PSTWO_INTR_MCLR 	0x001c 		/* wo (reads as MASK) */
     62 #define PSTWO_INTR_MASK 	PSTWO_INTR_MSET
     63 
     64 /* PSTWO_INTR_ bits */
     65 #define INTR_RX_FULL 		PSTWO_BIT(2) 	/* Received byte */
     66 #define INTR_RX_ERR 		PSTWO_BIT(3) 	/* Received corrupt packet */
     67 #define INTR_RX_OVER 		PSTWO_BIT(4) 	/* RX overrun */
     68 #define INTR_TX_DONE 		PSTWO_BIT(5) 	/* TX packet acknowledged */
     69 #define INTR_TX_SENT 		PSTWO_BIT(6) 	/* TX packet sent */
     70 #define INTR_TX_TIMO 		PSTWO_BIT(7) 	/* Clock lost while TX */
     71 #define INTR_ANY 		(INTR_RX_FULL | INTR_RX_ERR | INTR_RX_OVER | \
     72 				 INTR_TX_DONE | INTR_TX_SENT | INTR_TX_TIMO)
     73 
     74 #endif /*_VIRTEX_DEV_PSTWOREG_H_*/
     75