1 /* $NetBSD: qecreg.h,v 1.2 1999/01/16 12:46:08 pk Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Paul Kranenburg. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright (c) 1998 Theo de Raadt and Jason L. Wright. 41 * All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. The name of the authors may not be used to endorse or promote products 52 * derived from this software without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 55 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 56 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 57 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 58 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 59 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 60 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 61 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 62 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 63 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 64 */ 65 66 /* 67 * QEC registers layout 68 *- 69 struct qecregs { 70 u_int32_t qec_ctrl; // control 71 u_int32_t qec_stat; // status 72 u_int32_t qec_psize; // packet size 73 u_int32_t qec_msize; // local-mem size (64K) 74 u_int32_t qec_rsize; // receive partition size 75 u_int32_t qec_tsize; // transmit partition size 76 }; 77 */ 78 #define QEC_QRI_CTRL (0*4) 79 #define QEC_QRI_STAT (1*4) 80 #define QEC_QRI_PSIZE (2*4) 81 #define QEC_QRI_MSIZE (3*4) 82 #define QEC_QRI_RSIZE (4*4) 83 #define QEC_QRI_TSIZE (5*4) 84 85 #define QEC_CTRL_MODEMASK 0xf0000000 /* QEC mode: */ 86 #define QEC_CTRL_MMODE 0x40000000 /* MACE qec mode */ 87 #define QEC_CTRL_BMODE 0x10000000 /* BE qec mode */ 88 #define QEC_CTRL_EPAR 0x00000020 /* enable parity */ 89 #define QEC_CTRL_ACNTRL 0x00000018 /* sbus arbitration control */ 90 #define QEC_CTRL_B64 0x00000004 /* 64 byte dvma bursts */ 91 #define QEC_CTRL_B32 0x00000002 /* 32 byte dvma bursts */ 92 #define QEC_CTRL_B16 0x00000000 /* 16 byte dvma bursts */ 93 #define QEC_CTRL_RESET 0x00000001 /* reset the qec */ 94 95 #define QEC_STAT_TX 0x00000008 /* bigmac transmit irq */ 96 #define QEC_STAT_RX 0x00000004 /* bigmac receive irq */ 97 #define QEC_STAT_BM 0x00000002 /* bigmac qec irq */ 98 #define QEC_STAT_ER 0x00000001 /* bigmac error irq */ 99 100 #define QEC_PSIZE_2048 0x00 /* 2k packet size */ 101 #define QEC_PSIZE_4096 0x01 /* 4k packet size */ 102 #define QEC_PSIZE_6144 0x10 /* 6k packet size */ 103 #define QEC_PSIZE_8192 0x11 /* 8k packet size */ 104 105 106 107 /* 108 * Transmit & receive buffer descriptor. 109 */ 110 struct qec_xd { 111 volatile u_int32_t xd_flags; /* see below */ 112 volatile u_int32_t xd_addr; /* Buffer address (DMA) */ 113 }; 114 #define QEC_XD_OWN 0x80000000 /* ownership: 1=hw, 0=sw */ 115 #define QEC_XD_SOP 0x40000000 /* start of packet marker (xmit) */ 116 #define QEC_XD_EOP 0x20000000 /* end of packet marker (xmit) */ 117 #define QEC_XD_UPDATE 0x10000000 /* being updated? */ 118 #define QEC_XD_LENGTH 0x00001fff /* packet length mask */ 119 /* Descriptor ring size is fixed */ 120 #define QEC_XD_RING_MAXSIZE 256 /* maximum ring size */ 121