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      1 /*      $NetBSD: if_cemacvar.h,v 1.7 2024/10/15 00:58:15 lloyd Exp $	*/
      2 /*-
      3  * Copyright (c) 2015  Genetec Corporation.  All rights reserved.
      4  * Written by Hashimoto Kenichi for Genetec Corporation.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     16  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     17  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     18  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     19  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     20  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     21  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     22  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     23  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     24  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     25  * POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #ifndef _IF_CEMACVAR_H_
     29 #define _IF_CEMACVAR_H_
     30 
     31 #include <net/if.h>
     32 #include <net/if_media.h>
     33 #include <net/if_ether.h>
     34 #include <net/if_media.h>
     35 
     36 #include <dev/mii/miivar.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 cemac_qmeta {
     42 	struct mbuf	*m;
     43 	bus_dmamap_t	m_dmamap;
     44 };
     45 
     46 struct cemac_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 	uint8_t			sc_enaddr[ETHER_ADDR_LEN];
     52 	struct ethercom		sc_ethercom;
     53 	mii_data_t		sc_mii;
     54 	int			sc_phyno;
     55 
     56 	void			*rbqpage;
     57 	unsigned		rbqlen;
     58 	bus_addr_t		rbqpage_dsaddr;
     59 	bus_dmamap_t		rbqpage_dmamap;
     60 	void			*tbqpage;
     61 	unsigned		tbqlen;
     62 	bus_addr_t		tbqpage_dsaddr;
     63 	bus_dmamap_t		tbqpage_dmamap;
     64 
     65 	volatile struct eth_dsc *RDSC;
     66 	int			rxqi;
     67 	struct cemac_qmeta	rxq[RX_QLEN];
     68 	volatile struct eth_dsc *TDSC;
     69 	int			txqi, txqc;
     70 	struct cemac_qmeta	txq[TX_QLEN];
     71 	callout_t		cemac_tick_ch;
     72 
     73 	unsigned		cemac_flags;
     74 #define CEMAC_FLAG_GEM	__BIT(0)
     75 
     76 	kmutex_t *sc_mcast_lock;	/* m: lock for SIOCADD/DELMULTI */
     77 	kmutex_t *sc_intr_lock;		/* i: lock for interrupt operations */
     78 
     79 	u_short sc_if_flags;		/* m: if_flags cache */
     80 	time_t sc_tx_lastsent;		/* i: time of last tx */
     81 	bool sc_txbusy;			/* i: no Tx because down or busy */
     82 	bool sc_stopping;		/* i: ignore intr because down */
     83 	bool sc_tx_sending;		/* i: expecting tx complete irq */
     84 	bool sc_trigger_reset;		/* i */
     85 
     86 	struct workqueue *sc_reset_wq;
     87 	struct work sc_reset_work;	/* i */
     88 	volatile unsigned sc_reset_pending;
     89 };
     90 
     91 int cemac_intr(void *);
     92 
     93 void cemac_attach_common(struct cemac_softc *);
     94 
     95 
     96 #endif /* _IF_CEMACVAR_H_ */
     97