1 /* $NetBSD: am79c930reg.h,v 1.8 2021/12/05 04:54:21 msaitoh Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Bill Sommerfeld 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Device register definitions gleaned from the AMD "Am79C930 34 * PCnet(tm)-Mobile Single Chip Wireless LAN Media Access Controller" 35 * data sheet, AMD Pub #20183, Rev B, amendment/0, issue date August 1997. 36 * 37 * As of 1999/10/23, this was available from AMD's web site in PDF 38 * form. 39 */ 40 41 42 /* 43 * The 79c930 contains a bus interface unit, a media access 44 * controller, and a tranceiver attachment interface. 45 * The MAC contains an 80188 CPU core. 46 * typical devices built around this chip typically add 32k or 64k of 47 * memory for buffers. 48 * 49 * The 80188 runs firmware which handles most of the 802.11 gorp, and 50 * communicates with the host using shared data structures in this 51 * memory; the specifics of the shared memory layout are not covered 52 * in this source file; see <dev/ic/am80211fw.h> for details of that layer. 53 */ 54 55 /* 56 * Device Registers 57 */ 58 59 #define AM79C930_IO_BASE 0 60 #define AM79C930_IO_SIZE 16 61 #define AM79C930_IO_SIZE_BIG 40 62 #define AM79C930_IO_ALIGN 0x40 /* am79c930 decodes lower 6bits */ 63 64 65 #define AM79C930_GCR 0 /* General Config Register */ 66 67 #define AM79C930_GCR_SWRESET 0x80 /* software reset */ 68 #define AM79C930_GCR_CORESET 0x40 /* core reset */ 69 #define AM79C930_GCR_DISPWDN 0x20 /* disable powerdown */ 70 #define AM79C930_GCR_ECWAIT 0x10 /* embedded controller wait */ 71 #define AM79C930_GCR_ECINT 0x08 /* interrupt from embedded ctrlr */ 72 #define AM79C930_GCR_INT2EC 0x04 /* interrupt to embedded ctrlr */ 73 #define AM79C930_GCR_ENECINT 0x02 /* enable interrupts from e.c. */ 74 #define AM79C930_GCR_DAM 0x01 /* direct access mode (read only) */ 75 76 #define AM79C930_GCR_BITS "\020\1DAM\2ENECINT\3INT2EC\4ECINT\5ECWAIT\6DISPWDN\7CORESET\010SWRESET" 77 78 #define AM79C930_BSS 1 /* Bank Switching Select register */ 79 80 #define AM79C930_BSS_ECATR 0x80 /* E.C. ALE test read */ 81 #define AM79C930_BSS_FS 0x20 /* Flash Select */ 82 #define AM79C930_BSS_MBS 0x18 /* Memory Bank Select */ 83 #define AM79C930_BSS_EIOW 0x04 /* Expand I/O Window */ 84 #define AM79C930_BSS_TBS 0x03 /* TAI Bank Select */ 85 86 #define AM79C930_LMA_LO 2 /* Local Memory Address register (low byte) */ 87 88 #define AM79C930_LMA_HI 3 /* Local Memory Address register (high byte) */ 89 90 /* set this bit to turn off ISAPnP version */ 91 #define AM79C930_LMA_HI_ISAPWRDWN 0x80 92 93 /* 94 * mmm, inconsistency in chip documentation: 95 * According to page 79--80, all four of the following are equivalent 96 * and address the single byte pointed at by BSS_{FS,MBS} | LMA_{HI,LO} 97 * According to tables on p63 and p67, they're the LSB through MSB 98 * of a 32-bit word. 99 */ 100 101 #define AM79C930_IODPA 4 /* I/O Data port A */ 102 #define AM79C930_IODPB 5 /* I/O Data port B */ 103 #define AM79C930_IODPC 6 /* I/O Data port C */ 104 #define AM79C930_IODPD 7 /* I/O Data port D */ 105 106 107 /* 108 * Tranceiver Attachment Interface Registers (TIR space) 109 * (omitted for now, since host access to them is for diagnostic 110 * purposes only). 111 */ 112 113 /* 114 * memory space goo. 115 */ 116 117 #define AM79C930_MEM_SIZE 0x8000 /* 32k */ 118 #define AM79C930_MEM_BASE 0x0 /* starting at 0 */ 119