324c47457d
the MIF Configuration Register PHY_Select, there is no use in pretending
we could talk to both at the MII interface layer.
If both PHY are reported to be present, prefer the external one.
Remember this selection and enforce it in hme_mii_{read,write}reg.
This fixes problems with one of the dual hmes in Netra T1s.
From OpenBSD.
114 lines
4.2 KiB
C
114 lines
4.2 KiB
C
/* $NetBSD: hmevar.h,v 1.9 2002/12/18 23:13:03 martin Exp $ */
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/*-
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* Copyright (c) 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Paul Kranenburg.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "rnd.h"
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#include <sys/callout.h>
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#if NRND > 0
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#include <sys/rnd.h>
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#endif
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struct hme_ring {
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/* Ring Descriptors */
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caddr_t rb_membase; /* Packet buffer: CPU address */
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bus_addr_t rb_dmabase; /* Packet buffer: DMA address */
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caddr_t rb_txd; /* Transmit descriptors */
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bus_addr_t rb_txddma; /* DMA address of same */
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caddr_t rb_rxd; /* Receive descriptors */
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bus_addr_t rb_rxddma; /* DMA address of same */
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caddr_t rb_txbuf; /* Transmit buffers */
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caddr_t rb_rxbuf; /* Receive buffers */
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int rb_ntbuf; /* # of transmit buffers */
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int rb_nrbuf; /* # of receive buffers */
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/* Ring Descriptor state */
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int rb_tdhead, rb_tdtail;
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int rb_rdtail;
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int rb_td_nbusy;
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};
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struct hme_softc {
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struct device sc_dev; /* boilerplate device view */
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struct ethercom sc_ethercom; /* Ethernet common part */
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struct mii_data sc_mii; /* MII media control */
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#define sc_media sc_mii.mii_media/* shorthand */
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struct callout sc_tick_ch; /* tick callout */
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/* The following bus handles are to be provided by the bus front-end */
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bus_space_tag_t sc_bustag; /* bus tag */
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bus_dma_tag_t sc_dmatag; /* bus dma tag */
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bus_dmamap_t sc_dmamap; /* bus dma handle */
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bus_space_handle_t sc_seb; /* HME Global registers */
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bus_space_handle_t sc_erx; /* HME ERX registers */
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bus_space_handle_t sc_etx; /* HME ETX registers */
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bus_space_handle_t sc_mac; /* HME MAC registers */
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bus_space_handle_t sc_mif; /* HME MIF registers */
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int sc_burst; /* DVMA burst size in effect */
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int sc_phys[2]; /* MII instance -> PHY map */
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int sc_tcvr; /* which phy are we forcing? */
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int sc_pci; /* XXXXX -- PCI buses are LE. */
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/* Ring descriptor */
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struct hme_ring sc_rb;
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#if notused
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void (*sc_copytobuf) __P((struct hme_softc *,
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void *, void *, size_t));
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void (*sc_copyfrombuf) __P((struct hme_softc *,
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void *, void *, size_t));
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#endif
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int sc_debug;
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void *sc_sh; /* shutdownhook cookie */
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u_int8_t sc_enaddr[ETHER_ADDR_LEN]; /* MAC address */
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/* Special hardware hooks */
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void (*sc_hwreset) __P((struct hme_softc *));
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void (*sc_hwinit) __P((struct hme_softc *));
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#if NRND > 0
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rndsource_element_t rnd_source;
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#endif
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};
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void hme_config __P((struct hme_softc *));
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void hme_reset __P((struct hme_softc *));
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int hme_intr __P((void *));
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