1 /* $NetBSD: if_le_pci.c,v 1.43 2005/12/11 12:22:49 christos Exp $ */
4 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace
9 * Simulation Facility, NASA Ames Research Center.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the NetBSD
22 * Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
41 * Copyright (c) 1992, 1993
42 * The Regents of the University of California. All rights reserved.
44 * This code is derived from software contributed to Berkeley by
45 * Ralph Campbell and Rick Macklem.
47 * Redistribution and use in source and binary forms, with or without
48 * modification, are permitted provided that the following conditions
50 * 1. Redistributions of source code must retain the above copyright
51 * notice, this list of conditions and the following disclaimer.
52 * 2. Redistributions in binary form must reproduce the above copyright
53 * notice, this list of conditions and the following disclaimer in the
54 * documentation and/or other materials provided with the distribution.
55 * 3. Neither the name of the University nor the names of its contributors
56 * may be used to endorse or promote products derived from this software
57 * without specific prior written permission.
59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
62 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
71 * @(#)if_le.c 8.2 (Berkeley) 11/16/93
74 #include <sys/cdefs.h>
75 __FBSDID("$FreeBSD$");
77 #include <sys/param.h>
78 #include <sys/systm.h>
80 #include <sys/endian.h>
81 #include <sys/kernel.h>
83 #include <sys/module.h>
84 #include <sys/mutex.h>
85 #include <sys/resource.h>
87 #include <sys/socket.h>
89 #include <net/ethernet.h>
91 #include <net/if_media.h>
93 #include <machine/bus.h>
94 #include <machine/resource.h>
96 #include <dev/pci/pcireg.h>
97 #include <dev/pci/pcivar.h>
99 #include <dev/le/lancereg.h>
100 #include <dev/le/lancevar.h>
101 #include <dev/le/am79900var.h>
103 #define AMD_VENDOR 0x1022
104 #define AMD_PCNET_PCI 0x2000
105 #define AMD_PCNET_HOME 0x2001
106 #define PCNET_MEMSIZE (32*1024)
107 #define PCNET_PCI_RDP 0x10
108 #define PCNET_PCI_RAP 0x12
109 #define PCNET_PCI_BDP 0x16
111 struct le_pci_softc {
112 struct am79900_softc sc_am79900; /* glue to MI code */
114 struct resource *sc_rres;
116 struct resource *sc_ires;
119 bus_dma_tag_t sc_pdmat;
120 bus_dma_tag_t sc_dmat;
121 bus_dmamap_t sc_dmam;
124 static device_probe_t le_pci_probe;
125 static device_attach_t le_pci_attach;
126 static device_detach_t le_pci_detach;
127 static device_resume_t le_pci_resume;
128 static device_suspend_t le_pci_suspend;
130 static device_method_t le_pci_methods[] = {
131 /* Device interface */
132 DEVMETHOD(device_probe, le_pci_probe),
133 DEVMETHOD(device_attach, le_pci_attach),
134 DEVMETHOD(device_detach, le_pci_detach),
135 /* We can just use the suspend method here. */
136 DEVMETHOD(device_shutdown, le_pci_suspend),
137 DEVMETHOD(device_suspend, le_pci_suspend),
138 DEVMETHOD(device_resume, le_pci_resume),
143 DEFINE_CLASS_0(le, le_pci_driver, le_pci_methods, sizeof(struct le_pci_softc));
144 DRIVER_MODULE(le, pci, le_pci_driver, le_devclass, 0, 0);
145 MODULE_DEPEND(le, ether, 1, 1, 1);
147 static const int le_home_supmedia[] = {
148 IFM_MAKEWORD(IFM_ETHER, IFM_HPNA_1, 0, 0)
151 static const int le_pci_supmedia[] = {
152 IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, 0),
153 IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, IFM_FDX, 0),
154 IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, 0),
155 IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_FDX, 0),
156 IFM_MAKEWORD(IFM_ETHER, IFM_10_5, 0, 0),
157 IFM_MAKEWORD(IFM_ETHER, IFM_10_5, IFM_FDX, 0)
160 static void le_pci_wrbcr(struct lance_softc *, uint16_t, uint16_t);
161 static uint16_t le_pci_rdbcr(struct lance_softc *, uint16_t);
162 static void le_pci_wrcsr(struct lance_softc *, uint16_t, uint16_t);
163 static uint16_t le_pci_rdcsr(struct lance_softc *, uint16_t);
164 static int le_pci_mediachange(struct lance_softc *);
165 static void le_pci_hwreset(struct lance_softc *);
166 static bus_dmamap_callback_t le_pci_dma_callback;
169 le_pci_wrbcr(struct lance_softc *sc, uint16_t port, uint16_t val)
171 struct le_pci_softc *lesc = (struct le_pci_softc *)sc;
173 bus_write_2(lesc->sc_rres, PCNET_PCI_RAP, port);
174 bus_barrier(lesc->sc_rres, PCNET_PCI_RAP, 2, BUS_SPACE_BARRIER_WRITE);
175 bus_write_2(lesc->sc_rres, PCNET_PCI_BDP, val);
179 le_pci_rdbcr(struct lance_softc *sc, uint16_t port)
181 struct le_pci_softc *lesc = (struct le_pci_softc *)sc;
183 bus_write_2(lesc->sc_rres, PCNET_PCI_RAP, port);
184 bus_barrier(lesc->sc_rres, PCNET_PCI_RAP, 2, BUS_SPACE_BARRIER_WRITE);
185 return (bus_read_2(lesc->sc_rres, PCNET_PCI_BDP));
189 le_pci_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
191 struct le_pci_softc *lesc = (struct le_pci_softc *)sc;
193 bus_write_2(lesc->sc_rres, PCNET_PCI_RAP, port);
194 bus_barrier(lesc->sc_rres, PCNET_PCI_RAP, 2, BUS_SPACE_BARRIER_WRITE);
195 bus_write_2(lesc->sc_rres, PCNET_PCI_RDP, val);
199 le_pci_rdcsr(struct lance_softc *sc, uint16_t port)
201 struct le_pci_softc *lesc = (struct le_pci_softc *)sc;
203 bus_write_2(lesc->sc_rres, PCNET_PCI_RAP, port);
204 bus_barrier(lesc->sc_rres, PCNET_PCI_RAP, 2, BUS_SPACE_BARRIER_WRITE);
205 return (bus_read_2(lesc->sc_rres, PCNET_PCI_RDP));
209 le_pci_mediachange(struct lance_softc *sc)
211 struct ifmedia *ifm = &sc->sc_media;
214 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
217 if (IFM_SUBTYPE(ifm->ifm_media) == IFM_HPNA_1)
218 le_pci_wrbcr(sc, LE_BCR49,
219 (le_pci_rdbcr(sc, LE_BCR49) & ~LE_B49_PHYSEL) | 0x1);
220 else if (IFM_SUBTYPE(ifm->ifm_media) == IFM_AUTO)
221 le_pci_wrbcr(sc, LE_BCR2,
222 le_pci_rdbcr(sc, LE_BCR2) | LE_B2_ASEL);
224 le_pci_wrbcr(sc, LE_BCR2,
225 le_pci_rdbcr(sc, LE_BCR2) & ~LE_B2_ASEL);
227 reg = le_pci_rdcsr(sc, LE_CSR15);
228 reg &= ~LE_C15_PORTSEL(LE_PORTSEL_MASK);
229 if (IFM_SUBTYPE(ifm->ifm_media) == IFM_10_T)
230 reg |= LE_C15_PORTSEL(LE_PORTSEL_10T);
232 reg |= LE_C15_PORTSEL(LE_PORTSEL_AUI);
233 le_pci_wrcsr(sc, LE_CSR15, reg);
236 reg = le_pci_rdbcr(sc, LE_BCR9);
237 if (IFM_OPTIONS(ifm->ifm_media) & IFM_FDX) {
240 * Allow FDX on AUI only if explicitly chosen,
241 * not in autoselect mode.
243 if (IFM_SUBTYPE(ifm->ifm_media) == IFM_10_5)
249 le_pci_wrbcr(sc, LE_BCR9, reg);
255 le_pci_hwreset(struct lance_softc *sc)
259 * Chip is stopped. Set software style to PCnet-PCI (32-bit).
260 * Actually, am79900.c implements ILACC support (hence its
261 * name) but unfortunately VMware does not. As far as this
262 * driver is concerned that should not make a difference
263 * though, as the settings used have the same meaning for
264 * both, ILACC and PCnet-PCI (note that there would be a
265 * difference for the ADD_FCS/NO_FCS bit if used).
267 le_pci_wrbcr(sc, LE_BCR20, LE_B20_SSTYLE_PCNETPCI2);
271 le_pci_dma_callback(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
273 struct lance_softc *sc = (struct lance_softc *)xsc;
277 KASSERT(nsegs == 1, ("%s: bad DMA segment count", __func__));
278 sc->sc_addr = segs[0].ds_addr;
282 le_pci_probe(device_t dev)
285 if (pci_get_vendor(dev) != AMD_VENDOR)
288 switch (pci_get_device(dev)) {
290 device_set_desc(dev, "AMD PCnet-PCI");
291 /* Let pcn(4) win. */
292 return (BUS_PROBE_LOW_PRIORITY);
294 device_set_desc(dev, "AMD PCnet-Home");
295 /* Let pcn(4) win. */
296 return (BUS_PROBE_LOW_PRIORITY);
303 le_pci_attach(device_t dev)
305 struct le_pci_softc *lesc;
306 struct lance_softc *sc;
309 lesc = device_get_softc(dev);
310 sc = &lesc->sc_am79900.lsc;
312 LE_LOCK_INIT(sc, device_get_nameunit(dev));
314 pci_enable_busmaster(dev);
317 lesc->sc_rres = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
319 if (lesc->sc_rres == NULL) {
320 device_printf(dev, "cannot allocate registers\n");
326 if ((lesc->sc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ,
327 &i, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
328 device_printf(dev, "cannot allocate interrupt\n");
333 error = bus_dma_tag_create(
334 bus_get_dma_tag(dev), /* parent */
335 1, 0, /* alignment, boundary */
336 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
337 BUS_SPACE_MAXADDR, /* highaddr */
338 NULL, NULL, /* filter, filterarg */
339 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
341 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
343 NULL, NULL, /* lockfunc, lockarg */
346 device_printf(dev, "cannot allocate parent DMA tag\n");
350 sc->sc_memsize = PCNET_MEMSIZE;
352 * For Am79C970A, Am79C971 and Am79C978 the init block must be 2-byte
353 * aligned and the ring descriptors must be 16-byte aligned when using
354 * a 32-bit software style.
356 error = bus_dma_tag_create(
357 lesc->sc_pdmat, /* parent */
358 16, 0, /* alignment, boundary */
359 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
360 BUS_SPACE_MAXADDR, /* highaddr */
361 NULL, NULL, /* filter, filterarg */
362 sc->sc_memsize, /* maxsize */
364 sc->sc_memsize, /* maxsegsize */
366 NULL, NULL, /* lockfunc, lockarg */
369 device_printf(dev, "cannot allocate buffer DMA tag\n");
373 error = bus_dmamem_alloc(lesc->sc_dmat, (void **)&sc->sc_mem,
374 BUS_DMA_WAITOK | BUS_DMA_COHERENT, &lesc->sc_dmam);
376 device_printf(dev, "cannot allocate DMA buffer memory\n");
381 error = bus_dmamap_load(lesc->sc_dmat, lesc->sc_dmam, sc->sc_mem,
382 sc->sc_memsize, le_pci_dma_callback, sc, 0);
383 if (error != 0 || sc->sc_addr == 0) {
384 device_printf(dev, "cannot load DMA buffer map\n");
388 sc->sc_flags = LE_BSWAP;
391 sc->sc_mediastatus = NULL;
392 switch (pci_get_device(dev)) {
394 sc->sc_mediachange = le_pci_mediachange;
395 sc->sc_supmedia = le_home_supmedia;
396 sc->sc_nsupmedia = sizeof(le_home_supmedia) / sizeof(int);
397 sc->sc_defaultmedia = le_home_supmedia[0];
400 sc->sc_mediachange = le_pci_mediachange;
401 sc->sc_supmedia = le_pci_supmedia;
402 sc->sc_nsupmedia = sizeof(le_pci_supmedia) / sizeof(int);
403 sc->sc_defaultmedia = le_pci_supmedia[0];
407 * Extract the physical MAC address from the ROM.
409 bus_read_region_1(lesc->sc_rres, 0, sc->sc_enaddr,
410 sizeof(sc->sc_enaddr));
412 sc->sc_copytodesc = lance_copytobuf_contig;
413 sc->sc_copyfromdesc = lance_copyfrombuf_contig;
414 sc->sc_copytobuf = lance_copytobuf_contig;
415 sc->sc_copyfrombuf = lance_copyfrombuf_contig;
416 sc->sc_zerobuf = lance_zerobuf_contig;
418 sc->sc_rdcsr = le_pci_rdcsr;
419 sc->sc_wrcsr = le_pci_wrcsr;
420 sc->sc_hwreset = le_pci_hwreset;
421 sc->sc_hwinit = NULL;
422 sc->sc_hwintr = NULL;
423 sc->sc_nocarrier = NULL;
425 error = am79900_config(&lesc->sc_am79900, device_get_name(dev),
426 device_get_unit(dev));
428 device_printf(dev, "cannot attach Am79900\n");
432 error = bus_setup_intr(dev, lesc->sc_ires, INTR_TYPE_NET | INTR_MPSAFE,
433 NULL, am79900_intr, sc, &lesc->sc_ih);
435 device_printf(dev, "cannot set up interrupt\n");
442 am79900_detach(&lesc->sc_am79900);
444 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam);
446 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam);
448 bus_dma_tag_destroy(lesc->sc_dmat);
450 bus_dma_tag_destroy(lesc->sc_pdmat);
452 bus_release_resource(dev, SYS_RES_IRQ,
453 rman_get_rid(lesc->sc_ires), lesc->sc_ires);
455 bus_release_resource(dev, SYS_RES_IOPORT,
456 rman_get_rid(lesc->sc_rres), lesc->sc_rres);
463 le_pci_detach(device_t dev)
465 struct le_pci_softc *lesc;
466 struct lance_softc *sc;
468 lesc = device_get_softc(dev);
469 sc = &lesc->sc_am79900.lsc;
471 bus_teardown_intr(dev, lesc->sc_ires, lesc->sc_ih);
472 am79900_detach(&lesc->sc_am79900);
473 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam);
474 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam);
475 bus_dma_tag_destroy(lesc->sc_dmat);
476 bus_dma_tag_destroy(lesc->sc_pdmat);
477 bus_release_resource(dev, SYS_RES_IRQ,
478 rman_get_rid(lesc->sc_ires), lesc->sc_ires);
479 bus_release_resource(dev, SYS_RES_IOPORT,
480 rman_get_rid(lesc->sc_rres), lesc->sc_rres);
487 le_pci_suspend(device_t dev)
489 struct le_pci_softc *lesc;
491 lesc = device_get_softc(dev);
493 lance_suspend(&lesc->sc_am79900.lsc);
499 le_pci_resume(device_t dev)
501 struct le_pci_softc *lesc;
503 lesc = device_get_softc(dev);
505 lance_resume(&lesc->sc_am79900.lsc);