2 * Copyright (c) 1994-1998
3 * Paul Richards. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer,
10 * verbatim and that no modifications are made prior to this
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 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Paul Richards.
18 * 4. The name Paul Richards may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY PAUL RICHARDS ``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 PAUL RICHARDS 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
37 * Initialize multicast address hashing registers to accept
38 * all multicasts (only used when in promiscuous mode)
40 #define MULTI_INIT_ADDR 0xff
46 #define RECVBUFSIZE 1518 /* Packet size rounded to dword boundary */
47 #define TRANSBUFSIZE 1518
48 #define MBUF_CACHE_LIMIT 0
53 #define LNC_INITIALISED 1
54 #define LNC_ALLMULTI 2
56 /* BICC port addresses */
57 #define BICC_IOSIZE 16
58 #define BICC_RDP 0x0c /* Register Data Port */
59 #define BICC_RAP 0x0e /* Register Address Port */
61 /* NE2100 port addresses */
62 #define NE2100_IOSIZE 24
63 #define PCNET_RDP 0x10 /* Register Data Port */
64 #define PCNET_RAP 0x12 /* Register Address Port */
65 #define PCNET_RESET 0x14
66 #define PCNET_BDP 0x16
67 #define PCNET_VSW 0x18
69 /* DEPCA port addresses */
70 #define DEPCA_IOSIZE 16
71 #define DEPCA_CTRL 0x00 /* NIC Control and status register */
72 #define DEPCA_RDP 0x04 /* Register Data Port */
73 #define DEPCA_RAP 0x06 /* Register Address Port */
74 #define DEPCA_ADP 0x0c
76 /* DEPCA specific defines */
77 #define DEPCA_ADDR_ROM_SIZE 32
79 /* C-NET(98)S port addresses */
80 /* Notice, we can ignore fragmantation by using isa_alloc_resourcev(). */
81 #define CNET98S_IOSIZE 32
82 #define CNET98S_RDP 0x10 /* Register Data Port */
83 #define CNET98S_RAP 0x12 /* Register Address Port */
84 #define CNET98S_RESET 0x14
85 #define CNET98S_IDP 0x16
86 #define CNET98S_EEPROM 0x1e
89 #define LANCE 1 /* Am7990 */
90 #define C_LANCE 2 /* Am79C90 */
91 #define PCnet_ISA 3 /* Am79C960 */
92 #define PCnet_ISAplus 4 /* Am79C961 */
93 #define PCnet_ISA_II 5 /* Am79C961A */
94 #define PCnet_32 6 /* Am79C965 */
95 #define PCnet_PCI 7 /* Am79C970 */
96 #define PCnet_PCI_II 8 /* Am79C970A */
97 #define PCnet_FAST 9 /* Am79C971 */
98 #define PCnet_FASTplus 10 /* Am79C972 */
99 #define PCnet_Home 11 /* Am79C978 */
102 /* CSR88-89: Chip ID masks */
103 #define AMD_MASK 0x003
104 #define PART_MASK 0xffff
105 #define Am79C960 0x0003
106 #define Am79C961 0x2260
107 #define Am79C961A 0x2261
108 #define Am79C965 0x2430
109 #define Am79C970 0x0242
110 #define Am79C970A 0x2621
111 #define Am79C971 0x2623
112 #define Am79C972 0x2624
113 #define Am79C973 0x2625
114 #define Am79C978 0x2626
121 #define CNET98S 4 /* PC-98 */
123 /* mem_mode values */
129 "\20\3SHMEM\2DMA_MBUF\1DMA_FIXED"
132 "\20\20ERR\17BABL\16CERR\15MISS\14MERR\13RINT\12TINT\11IDON\
133 \10INTR\07INEA\06RXON\05TXON\04TDMD\03STOP\02STRT\01INIT"
136 "\20\20PROM\07INTL\06DRTY\05COLL\04DTCR\03LOOP\02DTX\01DRX"
139 "\20\10OWN\7ERR\6FRAM\5OFLO\4CRC\3BUFF\2STP\1ENP"
142 "\20\10OWN\7ERR\6RES\5MORE\4ONE\3DEF\2STP\1ENP"
145 "\20\6BUFF\5UFLO\4RES\3LCOL\2LCAR\1RTRY"
147 #ifdef LNC_KEEP_STATS
148 #define LNCSTATS_STRUCT \
174 int trans_ring_full; \
176 #define LNCSTATS(X) ++(sc->lnc_stats.X);
178 #define LNCSTATS_STRUCT
183 int ident; /* Type of card */
184 int ic; /* Type of ic, Am7990, Am79C960 etc. */
187 int mode; /* Mode setting at initialization */
190 typedef struct lnc_softc {
191 struct resource *irqres;
193 struct resource *drqres;
195 struct resource *portres;
197 bus_space_tag_t lnc_btag;
198 bus_space_handle_t lnc_bhandle;
202 struct arpcom arpcom; /* see ../../net/if_arp.h */
203 struct nic_info nic; /* NIC specific info */
205 struct host_ring_entry *recv_ring; /* start of alloc'd mem */
208 struct host_ring_entry *trans_ring;
210 struct init_block *init_block; /* Initialisation block */
211 int pending_transmits; /* No. of transmit descriptors in
226 struct host_ring_entry {
234 #define NDESC(len2) (1 << len2)
236 #define INC_MD_PTR(ptr, no_entries) \
237 if (++ptr >= NDESC(no_entries)) \
240 #define DEC_MD_PTR(ptr, no_entries) \
242 ptr = NDESC(no_entries) - 1;
244 #define RECV_NEXT (sc->recv_ring->base + sc->recv_next)
245 #define TRANS_NEXT (sc->trans_ring->base + sc->trans_next)
247 #define lnc_inb(port) \
248 bus_space_read_1(sc->lnc_btag, sc->lnc_bhandle, (port))
249 #define lnc_inw(port) \
250 bus_space_read_2(sc->lnc_btag, sc->lnc_bhandle, (port))
251 #define lnc_outw(port, val) \
252 bus_space_write_2(sc->lnc_btag, sc->lnc_bhandle, (port), (val))
254 /* Functional declarations */
255 extern int lance_probe(struct lnc_softc *);
256 extern void lnc_release_resources(device_t);
257 extern int lnc_attach_common(device_t);
258 extern void lnc_stop(struct lnc_softc *);
260 extern void write_csr(struct lnc_softc *, u_short, u_short);
261 extern u_short read_csr(struct lnc_softc *, u_short);
263 /* Variable declarations */
264 extern driver_intr_t lncintr;
265 extern devclass_t lnc_devclass;