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      1 /*	$Id: at91emacvar.h,v 1.4 2022/09/17 19:32:01 thorpej Exp $	*/
      2 /*      $NetBSD: at91emacvar.h,v 1.4 2022/09/17 19:32:01 thorpej Exp $	*/
      3 /*-
      4  * Copyright (c) 2007 Embedtronics Oy
      5  * All rights reserved
      6  *
      7  * Based on arch/arm/ep93xx/epevar.h
      8  *
      9  * Copyright (c) 2004 Jesse Off
     10  * All rights reserved
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  *
     33  */
     34 
     35 #ifndef _AT91EMACVAR_H_
     36 #define _AT91EMACVAR_H_
     37 
     38 #define RX_QLEN 64
     39 #define	TX_QLEN	2		/* I'm very sorry but that's where we can get */
     40 
     41 struct emac_qmeta {
     42 	struct mbuf 	*m;
     43 	bus_dmamap_t	m_dmamap;
     44 };
     45 
     46 struct emac_softc {
     47 	device_t		sc_dev;
     48 	bus_space_tag_t		sc_iot;
     49 	bus_space_handle_t	sc_ioh;
     50 	bus_dma_tag_t		sc_dmat;
     51 	int			sc_pid;
     52 	uint8_t			sc_enaddr[ETHER_ADDR_LEN];
     53 	struct ethercom		sc_ec;
     54 	mii_data_t		sc_mii;
     55 	void			*rbqpage;
     56 	unsigned		rbqlen;
     57 	bus_addr_t		rbqpage_dsaddr;
     58 	bus_dmamap_t		rbqpage_dmamap;
     59 
     60 	volatile struct eth_rdsc *RDSC;
     61 	int			rxqi;
     62 	struct emac_qmeta	rxq[RX_QLEN];
     63 	int			txqi, txqc;
     64 	struct emac_qmeta	txq[TX_QLEN];
     65 	callout_t		emac_tick_ch;
     66 	bool			tx_busy;
     67 };
     68 
     69 #endif /* _AT91EMACVAR_H_ */
     70