1 /* $OpenBSD: hmevar.h,v 1.17 2014/11/27 14:53:42 brad Exp $ */ 2 /* $NetBSD: hmevar.h,v 1.6 2000/09/28 10:56:57 tsutsui Exp $ */ 3 4 /*- 5 * Copyright (c) 1999 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Paul Kranenburg. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/timeout.h> 34 35 #define HME_TX_RING_SIZE 64 36 #define HME_RX_RING_SIZE 64 37 #define HME_RX_RING_MAX 256 38 #define HME_TX_RING_MAX 256 39 #define HME_RX_PKTSIZE 1600 40 #define HME_TX_NSEGS 16 41 42 struct hme_sxd { 43 struct mbuf *sd_mbuf; /* descriptor mbuf */ 44 bus_dmamap_t sd_map; /* descriptor dmamap */ 45 }; 46 47 struct hme_ring { 48 /* Ring Descriptors */ 49 caddr_t rb_membase; /* Packet buffer: CPU address */ 50 bus_addr_t rb_dmabase; /* Packet buffer: DMA address */ 51 caddr_t rb_txd; /* Transmit descriptors */ 52 bus_addr_t rb_txddma; /* DMA address of same */ 53 caddr_t rb_rxd; /* Receive descriptors */ 54 bus_addr_t rb_rxddma; /* DMA address of same */ 55 }; 56 57 struct hme_softc { 58 struct device sc_dev; /* boilerplate device view */ 59 struct arpcom sc_arpcom; /* Ethernet common part */ 60 struct mii_data sc_mii; /* MII media control */ 61 #define sc_media sc_mii.mii_media/* shorthand */ 62 struct timeout sc_tick_ch; /* tick callout */ 63 64 /* The following bus handles are to be provided by the bus front-end */ 65 bus_space_tag_t sc_bustag; /* bus tag */ 66 bus_dma_tag_t sc_dmatag; /* bus dma tag */ 67 bus_dmamap_t sc_dmamap; /* bus dma handle */ 68 bus_space_handle_t sc_seb; /* HME Global registers */ 69 bus_space_handle_t sc_erx; /* HME ERX registers */ 70 bus_space_handle_t sc_etx; /* HME ETX registers */ 71 bus_space_handle_t sc_mac; /* HME MAC registers */ 72 bus_space_handle_t sc_mif; /* HME MIF registers */ 73 int sc_burst; /* DVMA burst size in effect */ 74 int sc_phys[2]; /* MII instance -> PHY map */ 75 76 int sc_pci; /* XXXXX -- PCI buses are LE. */ 77 78 /* Ring descriptor */ 79 struct hme_ring sc_rb; 80 81 int sc_debug; 82 83 struct hme_sxd sc_txd[HME_TX_RING_MAX], sc_rxd[HME_RX_RING_MAX]; 84 bus_dmamap_t sc_rxmap_spare; 85 int sc_tx_cnt, sc_tx_prod, sc_tx_cons; 86 struct if_rxring sc_rx_ring; 87 int sc_rx_prod, sc_rx_cons; 88 u_int32_t sc_tcvr; 89 }; 90 91 92 void hme_config(struct hme_softc *); 93 void hme_unconfig(struct hme_softc *); 94 void hme_reset(struct hme_softc *); 95 int hme_intr(void *); 96