xref: /netbsd-src/sys/dev/ic/bcmgenetvar.h (revision a996307834b748a0a59a5323bfffa5f25d5aa8be)
1 /* $NetBSD: bcmgenetvar.h,v 1.6 2024/10/04 10:41:58 skrll Exp $ */
2 
3 /*-
4  * Copyright (c) 2020 Jared McNeill <jmcneill@invisible.ca>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 /*
30  * Broadcom GENETv5
31  */
32 
33 #ifndef _BCMGENETVAR_H
34 #define _BCMGENETVAR_H
35 
36 #include <dev/ic/bcmgenetreg.h>
37 
38 enum genet_phy_mode {
39 	GENET_PHY_MODE_RGMII,
40 	GENET_PHY_MODE_RGMII_ID,
41 	GENET_PHY_MODE_RGMII_TXID,
42 	GENET_PHY_MODE_RGMII_RXID,
43 };
44 
45 struct genet_bufmap {
46 	bus_dmamap_t		map;
47 	struct mbuf		*mbuf;
48 };
49 
50 struct genet_ring {
51 	bus_dma_tag_t		buf_tag;
52 	struct genet_bufmap	buf_map[GENET_DMA_DESC_COUNT];
53 	u_int			next, queued;
54 	uint32_t		cidx, pidx;
55 };
56 
57 struct genet_softc {
58 	device_t		sc_dev;
59 	bus_space_tag_t		sc_bst;
60 	bus_space_handle_t	sc_bsh;
61 	bus_dma_tag_t		sc_dmat;
62 	int			sc_phy_id;
63 	enum genet_phy_mode	sc_phy_mode;
64 
65 	struct ethercom		sc_ec;
66 	struct mii_data		sc_mii;
67 	callout_t		sc_stat_ch;
68 	kmutex_t		sc_lock;
69 	kmutex_t		sc_txlock;
70 
71 	u_short			sc_if_flags;
72 	bool			sc_txrunning;
73 
74 	struct genet_ring	sc_tx;
75 	struct genet_ring	sc_rx;
76 
77 	krndsource_t		sc_rndsource;
78 };
79 
80 int	genet_attach(struct genet_softc *);
81 int	genet_intr(void *);
82 
83 #endif /* !_BCMGENETVAR_H */
84