2 * Copyright (c) 1994-2000
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. The name Paul Richards may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY PAUL RICHARDS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL PAUL RICHARDS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 #include <sys/param.h>
36 #include <sys/systm.h>
38 #include <sys/kernel.h>
39 #include <sys/malloc.h>
40 #include <sys/module.h>
41 #include <sys/socket.h>
43 #include <machine/bus.h>
44 #include <machine/resource.h>
47 #include <net/ethernet.h>
49 #include <net/if_arp.h>
51 #include <isa/isavar.h>
53 #include <dev/lnc/if_lncvar.h>
54 #include <dev/lnc/if_lncreg.h>
56 static struct isa_pnp_id lnc_pnp_ids[] = {
61 lnc_legacy_probe(device_t dev)
63 struct lnc_softc *sc = device_get_softc(dev);
66 sc->portres = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &sc->portrid,
70 device_printf(dev, "Failed to allocate I/O ports\n");
71 lnc_release_resources(dev);
75 sc->lnc_btag = rman_get_bustag(sc->portres);
76 sc->lnc_bhandle = rman_get_bushandle(sc->portres);
79 * There isn't any way to determine if a NIC is a BICC. Basically, if
80 * the lance probe succeeds using the i/o addresses of the BICC then
81 * we assume it's a BICC.
86 sc->nic.mem_mode = DMA_FIXED;
87 /* XXX Should set BICC_IOSIZE et al somewhere to alloc
88 resources correctly */
90 if ((sc->nic.ic = lance_probe(sc))) {
91 device_set_desc(dev, "BICC Isolan");
93 lnc_release_resources(dev);
96 /* It's not a BICC so try the standard NE2100 ports */
99 if ((sc->nic.ic = lance_probe(sc))) {
100 sc->nic.ident = NE2100;
101 device_set_desc(dev, "NE2100");
102 lnc_release_resources(dev);
105 lnc_release_resources(dev);
112 lnc_isa_probe(device_t dev)
116 pnp = ISA_PNP_PROBE(device_get_parent(dev), dev, lnc_pnp_ids);
118 /* It's not a PNP card, see if we support it by probing it */
119 return (lnc_legacy_probe(dev));
120 } else if (pnp == ENXIO) {
123 /* Found PNP card we support */
129 lnc_alloc_callback(void *arg, bus_dma_segment_t *seg, int nseg, int error)
136 lnc_isa_attach(device_t dev)
138 lnc_softc_t *sc = device_get_softc(dev);
140 bus_size_t lnc_mem_size;
142 device_printf(dev, "Attaching %s\n", device_get_desc(dev));
145 sc->portres = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &sc->portrid,
149 device_printf(dev, "Failed to allocate I/O ports\n");
150 lnc_release_resources(dev);
155 sc->drqres = bus_alloc_resource_any(dev, SYS_RES_DRQ, &sc->drqrid,
159 device_printf(dev, "Failed to allocate DMA channel\n");
160 lnc_release_resources(dev);
164 if (isa_get_irq(dev) == -1)
165 bus_set_resource(dev, SYS_RES_IRQ, 0, 10, 1);
168 sc->irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irqrid,
172 device_printf(dev, "Failed to allocate irq\n");
173 lnc_release_resources(dev);
177 err = bus_setup_intr(dev, sc->irqres, INTR_TYPE_NET, lncintr,
181 device_printf(dev, "Failed to setup irq handler\n");
182 lnc_release_resources(dev);
186 /* XXX temp setting for nic */
187 sc->nic.mem_mode = DMA_FIXED;
191 if (sc->nic.ident == NE2100) {
200 /* Create a DMA tag describing the ring memory we need */
202 lnc_mem_size = ((NDESC(sc->nrdre) + NDESC(sc->ntdre)) *
203 sizeof(struct host_ring_entry));
205 lnc_mem_size += (NDESC(sc->nrdre) * RECVBUFSIZE) +
206 (NDESC(sc->ntdre) * TRANSBUFSIZE);
208 err = bus_dma_tag_create(NULL, /* parent */
211 BUS_SPACE_MAXADDR_24BIT, /* lowaddr */
212 BUS_SPACE_MAXADDR, /* highaddr */
213 NULL, NULL, /* filter, filterarg */
214 lnc_mem_size, /* segsize */
216 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
218 busdma_lock_mutex, /* lockfunc */
219 &Giant, /* lockarg */
223 device_printf(dev, "Can't create DMA tag\n");
224 lnc_release_resources(dev);
228 err = bus_dmamem_alloc(sc->dmat, (void **)&sc->recv_ring,
229 BUS_DMA_NOWAIT, &sc->dmamap);
232 device_printf(dev, "Couldn't allocate memory\n");
233 lnc_release_resources(dev);
237 err = bus_dmamap_load(sc->dmat, sc->dmamap, sc->recv_ring, lnc_mem_size,
238 lnc_alloc_callback, sc->recv_ring, BUS_DMA_NOWAIT);
241 device_printf(dev, "Couldn't load DMA map\n");
242 lnc_release_resources(dev);
246 isa_dmacascade(rman_get_start(sc->drqres));
248 /* Call generic attach code */
249 if (! lnc_attach_common(dev)) {
250 device_printf(dev, "Generic attach code failed\n");
251 lnc_release_resources(dev);
257 static device_method_t lnc_isa_methods[] = {
258 /* DEVMETHOD(device_identify, lnc_isa_identify), */
259 DEVMETHOD(device_probe, lnc_isa_probe),
260 DEVMETHOD(device_attach, lnc_isa_attach),
261 DEVMETHOD(device_detach, lnc_detach_common),
263 DEVMETHOD(device_suspend, lnc_isa_suspend),
264 DEVMETHOD(device_resume, lnc_isa_resume),
265 DEVMETHOD(device_shutdown, lnc_isa_shutdown),
270 static driver_t lnc_isa_driver = {
273 sizeof(struct lnc_softc),
276 DRIVER_MODULE(lnc, isa, lnc_isa_driver, lnc_devclass, 0, 0);
277 MODULE_DEPEND(lnc, isa, 1, 1, 1);
278 MODULE_DEPEND(lnc, ether, 1, 1, 1);