Home | History | Annotate | Line # | Download | only in ic
sgecvar.h revision 1.2 
      1 /*      $NetBSD: sgecvar.h,v 1.2 2000/06/04 02:14:14 matt Exp $ */
      2 /*
      3  * Copyright (c) 1999 Ludd, University of Lule}, Sweden. All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *      This product includes software developed at Ludd, University of
     16  *      Lule}, Sweden and its contributors.
     17  * 4. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #define RXDESCS	30	/* # of receive descriptors */
     33 #define TXDESCS	60	/* # transmit descs */
     34 
     35 /*
     36  * Descriptors must be an even number; optimisation thing.
     37  */
     38 struct ze_cdata {
     39 	struct ze_rdes	zc_recv[RXDESCS+2];	/* Receive descriptors */
     40 	struct ze_tdes	zc_xmit[TXDESCS+2];	/* Transmit descriptors */
     41 	u_int8_t	zc_setup[128];		/* Setup packet layout */
     42 };
     43 
     44 struct	ze_softc {
     45 	struct device	sc_dev;		/* Configuration common part	*/
     46 	struct evcnt	sc_intrcnt;	/* Interrupt counters		*/
     47 	struct ethercom sc_ec;		/* Ethernet common part		*/
     48 #define sc_if	sc_ec.ec_if		/* network-visible interface	*/
     49 	bus_space_tag_t sc_iot;
     50 	bus_addr_t	sc_ioh;
     51 	bus_dma_tag_t	sc_dmat;
     52 	struct ze_cdata *sc_zedata;	/* Descriptor struct		*/
     53 	struct ze_cdata *sc_pzedata;	/* Physical address of above	*/
     54 	bus_dmamap_t	sc_cmap;	/* Map for control structures	*/
     55 	struct mbuf*	sc_txmbuf[TXDESCS];
     56 	struct mbuf*	sc_rxmbuf[RXDESCS];
     57 	bus_dmamap_t	sc_xmtmap[TXDESCS];
     58 	bus_dmamap_t	sc_rcvmap[RXDESCS];
     59 	int		sc_intvec;	/* Interrupt vector		*/
     60 	int		sc_nexttx;
     61 	int		sc_inq;
     62 	int		sc_lastack;
     63 	int		sc_nextrx;
     64 	int		sc_setup;	/* Setup packet in queue	*/
     65 	u_int8_t 	sc_enaddr[ETHER_ADDR_LEN];
     66 };
     67 
     68 void	sgec_attach __P((struct ze_softc *));
     69 int	sgec_intr __P((struct ze_softc *));
     70