1e56655e43
o give an argument to EP_BUSY_WAIT o use foo_locked rather than foo_body o Add locking assertions for extra safety.
112 lines
3.8 KiB
C
112 lines
3.8 KiB
C
/*
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* Copyright (c) 1993 Herb Peyerl (hpeyerl@novatel.ca) All rights reserved.
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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 are
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* met: 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer. 2. The name
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* of the author may not be used to endorse or promote products derived from
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* this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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struct ep_board {
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u_short prod_id; /* product ID */
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int cmd_off; /* command offset (bit shift) */
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int mii_trans; /* activate MII transiever */
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u_short res_cfg; /* resource configuration */
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};
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/*
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* Ethernet software status per interface.
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*/
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struct ep_softc {
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struct arpcom arpcom; /* Ethernet common part */
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struct ifmedia ifmedia; /* media info */
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device_t dev;
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struct mtx sc_mtx;
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struct resource *iobase;
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struct resource *irq;
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bus_space_handle_t bsh;
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bus_space_tag_t bst;
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void *ep_intrhand;
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u_short ep_connectors; /* Connectors on this card. */
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u_char ep_connector; /* Configured connector. */
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struct mbuf *top;
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struct mbuf *mcur;
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short cur_len;
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int stat; /* some flags */
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#define F_RX_FIRST 0x001
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#define F_PROMISC 0x008
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#define F_ACCESS_32_BITS 0x100
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int gone; /* adapter is not present (for PCCARD) */
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struct ep_board epb;
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int unit;
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#ifdef EP_LOCAL_STATS
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short tx_underrun;
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short rx_no_first;
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short rx_no_mbuf;
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short rx_overrunf;
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short rx_overrunl;
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#endif
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};
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int ep_alloc(device_t);
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void ep_free(device_t);
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int ep_detach(device_t);
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void ep_get_media(struct ep_softc *);
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int ep_attach(struct ep_softc *);
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void ep_intr(void *);
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int get_e(struct ep_softc *, u_int16_t, u_int16_t *);
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int ep_get_macaddr(struct ep_softc *, u_char *);
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#define CSR_READ_1(sc, off) (bus_space_read_1((sc)->bst, (sc)->bsh, off))
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#define CSR_READ_2(sc, off) (bus_space_read_2((sc)->bst, (sc)->bsh, off))
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#define CSR_WRITE_1(sc, off, val) \
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bus_space_write_1(sc->bst, sc->bsh, off, val)
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#define CSR_WRITE_2(sc, off, val) \
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bus_space_write_2(sc->bst, sc->bsh, off, val)
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#define CSR_WRITE_MULTI_1(sc, off, addr, count) \
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bus_space_write_multi_1(sc->bst, sc->bsh, off, addr, count)
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#define CSR_WRITE_MULTI_2(sc, off, addr, count) \
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bus_space_write_multi_2(sc->bst, sc->bsh, off, addr, count)
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#define CSR_WRITE_MULTI_4(sc, off, addr, count) \
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bus_space_write_multi_4(sc->bst, sc->bsh, off, addr, count)
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#define CSR_READ_MULTI_1(sc, off, addr, count) \
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bus_space_read_multi_1(sc->bst, sc->bsh, off, addr, count)
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#define CSR_READ_MULTI_2(sc, off, addr, count) \
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bus_space_read_multi_2(sc->bst, sc->bsh, off, addr, count)
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#define CSR_READ_MULTI_4(sc, off, addr, count) \
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bus_space_read_multi_4(sc->bst, sc->bsh, off, addr, count)
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#define EP_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx)
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#define EP_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
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#define EP_LOCK_INIT(_sc) \
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mtx_init(&_sc->sc_mtx, device_get_nameunit(_sc->dev), \
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MTX_NETWORK_LOCK, MTX_DEF)
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#define EP_LOCK_DESTORY(_sc) mtx_destroy(&_sc->sc_mtx);
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#define EP_ASSERT_LOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_OWNED);
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#define EP_ASSERT_UNLOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_NOTOWNED);
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