xref: /netbsd/sys/dev/ic/mb86960var.h (revision 9ab7e2fb)
1 /*	$NetBSD: mb86960var.h,v 1.41 2021/07/31 14:36:33 andvar Exp $	*/
2 
3 /*
4  * All Rights Reserved, Copyright (C) Fujitsu Limited 1995
5  *
6  * This software may be used, modified, copied, distributed, and sold, in
7  * both source and binary form provided that the above copyright, these
8  * terms and the following disclaimer are retained.  The name of the author
9  * and/or the contributor may not be used to endorse or promote products
10  * derived from this software without specific prior written permission.
11  *
12  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND THE CONTRIBUTOR ``AS IS'' AND
13  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
14  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
15  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR THE CONTRIBUTOR BE LIABLE
16  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
17  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
18  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION.
19  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
20  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
21  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
22  * SUCH DAMAGE.
23  */
24 
25 /*
26  * Portions copyright (C) 1993, David Greenman.  This software may be used,
27  * modified, copied, distributed, and sold, in both source and binary form
28  * provided that the above copyright and these terms are retained.  Under no
29  * circumstances is the author responsible for the proper functioning of this
30  * software, nor does the author assume any responsibility for damages
31  * incurred with its use.
32  */
33 
34 /*
35  * Device driver for Fujitsu MB86960A/MB86965A based Ethernet cards.
36  * Contributed by M.S. <seki@sysrap.cs.fujitsu.co.jp>
37  *
38  * This version is intended to be a generic template for various
39  * MB86960A/MB86965A based Ethernet cards.  It currently supports
40  * Fujitsu FMV-180 series (i.e., FMV-181 and FMV-182) and Allied-
41  * Telesis AT1700 series and RE2000 series.  There are some
42  * unnecessary hooks embedded, which are primarily intended to support
43  * other types of Ethernet cards, but the author is not sure whether
44  * they are useful.
45  */
46 
47 #include <sys/rndsource.h>
48 
49 /*
50  * Default settings for fe driver specific options.
51  * They can be set in config file by "options" statements.
52  */
53 
54 /*
55  * Debug control.
56  * 0: No debug at all.  All debug specific codes are stripped off.
57  * 1: Silent.  No debug messages are logged except emergent ones.
58  * 2: Brief.  Lair events and/or important information are logged.
59  * 3: Detailed.  Logs all information which *may* be useful for debugging.
60  * 4: Trace.  All actions in the driver is logged.  Super verbose.
61  */
62 #ifndef FE_DEBUG
63 #define FE_DEBUG		1
64 #endif
65 
66 /*
67  * Delay padding of short transmission packets to minimum Ethernet size.
68  * This may or may not gain performance.  An EXPERIMENTAL option.
69  */
70 #ifndef FE_DELAYED_PADDING
71 #define FE_DELAYED_PADDING	0
72 #endif
73 
74 /*
75  * Transmit just one packet per a "send" command to 86960.
76  * This option is intended for performance test.  An EXPERIMENTAL option.
77  */
78 #ifndef FE_SINGLE_TRANSMISSION
79 #define FE_SINGLE_TRANSMISSION	0
80 #endif
81 
82 /*
83  * Device configuration flags.
84  */
85 
86 /* DLCR6 settings. */
87 #define FE_FLAGS_DLCR6_VALUE	0x007F
88 
89 /* Force DLCR6 override. */
90 #define FE_FLAGS_OVERRIDE_DLCR6	0x0080
91 
92 /*
93  * Supported hardware (Ethernet card) types
94  * This information is currently used only for debugging
95  */
96 enum fe_type {
97 	/* For cards which are successfully probed but not identified. */
98 	FE_TYPE_UNKNOWN = 0,
99 
100 	/* Fujitsu FMV-180 series. */
101 	FE_TYPE_FMV181,
102 	FE_TYPE_FMV181A,
103 	FE_TYPE_FMV182,
104 	FE_TYPE_FMV182A,
105 	FE_TYPE_FMV183,
106 	FE_TYPE_FMV184,
107 
108 	/* Allied-Telesis AT1700 series and RE2000 series. */
109 	FE_TYPE_AT1700T,
110 	FE_TYPE_AT1700BT,
111 	FE_TYPE_AT1700FT,
112 	FE_TYPE_AT1700AT,
113 	FE_TYPE_AT_UNKNOWN,
114 
115 	/* PCMCIA by Fujitsu. */
116 	FE_TYPE_MBH10302,
117 	FE_TYPE_MBH10304
118 };
119 
120 /*
121  * fe_softc: per line info and status
122  */
123 struct mb86960_softc {
124 	device_t sc_dev;
125 	struct ethercom sc_ec;		/* ethernet common */
126 	struct ifmedia sc_media;	/* supported media information */
127 
128 	bus_space_tag_t sc_bst;		/* bus space */
129 	bus_space_handle_t sc_bsh;
130 
131 	/* Set by probe() and not modified in later phases. */
132 	uint32_t sc_flags;		/* controller quirks */
133 #define FE_FLAGS_MB86960	0x0001	/* DLCR7 is different on MB86960 */
134 #define FE_FLAGS_SBW_BYTE	0x0002	/* byte access mode for system bus */
135 #define FE_FLAGS_SRAM_150ns	0x0004	/* The board has slow SRAM */
136 
137 	uint8_t proto_dlcr4;		/* DLCR4 prototype. */
138 	uint8_t proto_dlcr5;		/* DLCR5 prototype. */
139 	uint8_t proto_dlcr6;		/* DLCR6 prototype. */
140 	uint8_t proto_dlcr7;		/* DLCR7 prototype. */
141 	uint8_t proto_bmpr13;		/* BMPR13 prototype. */
142 
143 	/* Vendor specific hooks. */
144 	void	(*init_card)(struct mb86960_softc *);
145 	void	(*stop_card)(struct mb86960_softc *);
146 
147 	/* Transmission buffer management. */
148 	int	txb_size;	/* total bytes in TX buffer */
149 	int	txb_free;	/* free bytes in TX buffer */
150 	int	txb_count;	/* number of packets in TX buffer */
151 	int	txb_sched;	/* number of scheduled packets */
152 	int	txb_padding;	/* number of delayed padding bytes */
153 
154 	/* Multicast address filter management. */
155 	int	filter_change;	/* MARs must be changed ASAP. */
156 	uint8_t filter[FE_FILTER_LEN];	/* new filter value. */
157 
158 	uint8_t sc_enaddr[ETHER_ADDR_LEN];
159 
160 	krndsource_t rnd_source;
161 
162 	uint32_t sc_stat;	/* driver status */
163 #define FE_STAT_ENABLED		0x0001	/* power enabled on interface */
164 #define FE_STAT_ATTACHED	0x0002	/* attach has succeeded */
165 
166 	int	(*sc_enable)(struct mb86960_softc *);
167 	void	(*sc_disable)(struct mb86960_softc *);
168 
169 	int	(*sc_mediachange)(struct mb86960_softc *);
170 	void	(*sc_mediastatus)(struct mb86960_softc *, struct ifmediareq *);
171 };
172 
173 /*
174  * Fe driver specific constants which relate to 86960/86965.
175  */
176 
177 /* Interrupt masks. */
178 #define FE_TMASK (FE_D2_COLL16 | FE_D2_TXDONE)
179 #define FE_RMASK (FE_D3_OVRFLO | FE_D3_CRCERR | \
180 		  FE_D3_ALGERR | FE_D3_SRTPKT | FE_D3_PKTRDY)
181 
182 /* Maximum number of iterations for a receive interrupt. */
183 #define FE_MAX_RECV_COUNT ((65536 - 2048 * 2) / 64)
184 	/* Maximum size of SRAM is 65536,
185 	 * minimum size of transmission buffer in fe is 2x2KB,
186 	 * and minimum amount of received packet including headers
187 	 * added by the chip is 64 bytes.
188 	 * Hence FE_MAX_RECV_COUNT is the upper limit for number
189 	 * of packets in the receive buffer. */
190 
191 void	mb86960_attach(struct mb86960_softc *, uint8_t *);
192 void	mb86960_config(struct mb86960_softc *, int *, int, int);
193 int	mb86960_intr(void *);
194 int	mb86960_enable(struct mb86960_softc *);
195 void	mb86960_disable(struct mb86960_softc *);
196 int	mb86960_activate(device_t, enum devact);
197 int	mb86960_detach(struct mb86960_softc *);
198 void	mb86965_read_eeprom(bus_space_tag_t, bus_space_handle_t, uint8_t *);
199