xref: /netbsd-src/sys/arch/arm/at91/at91emacvar.h (revision 5857c2f00920c7bc8b7601fa7caa3a7a2beb874c)
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