/* $OpenBSD: if_we.c,v 1.20 2008/06/26 05:42:16 ray Exp $ */ /* $NetBSD: if_we.c,v 1.11 1998/07/05 06:49:14 jonathan Exp $ */ /*- * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, * NASA Ames Research Center. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * Device driver for National Semiconductor DS8390/WD83C690 based ethernet * adapters. * * Copyright (c) 1994, 1995 Charles M. Hannum. All rights reserved. * * Copyright (C) 1993, David Greenman. This software may be used, modified, * copied, distributed, and sold, in both source and binary form provided that * the above copyright and these terms are retained. Under no circumstances is * the author responsible for the proper functioning of this software, nor does * the author assume any responsibility for damages incurred with its use. */ /* * Device driver for the Western Digital/SMC 8003 and 8013 series, * and the SMC Elite Ultra (8216). */ #include "bpfilter.h" #include "we.h" #include #include #include #include #include #include #include #include #include #include #ifdef INET #include #include #include #include #include #endif #if NBPFILTER > 0 #include #endif #include #include #include #include #include #include #include #ifndef __BUS_SPACE_HAS_STREAM_METHODS #define bus_space_read_region_stream_2 bus_space_read_region_2 #define bus_space_write_stream_2 bus_space_write_2 #define bus_space_write_region_stream_2 bus_space_write_region_2 #endif struct we_softc { struct dp8390_softc sc_dp8390; bus_space_tag_t sc_asict; /* space tag for ASIC */ bus_space_handle_t sc_asich; /* space handle for ASIC */ u_int8_t sc_laar_proto; u_int8_t sc_msr_proto; u_int8_t sc_type; /* our type */ int sc_16bitp; /* are we 16 bit? */ void *sc_ih; /* interrupt handle */ }; int we_probe(struct device *, void *, void *); void we_attach(struct device *, struct device *, void *); struct cfattach we_isa_ca = { sizeof(struct we_softc), we_probe, we_attach }; #if NWE_ISAPNP struct cfattach we_isapnp_ca = { sizeof(struct we_softc), we_probe, we_attach }; #endif /* NWE_ISAPNP */ struct cfdriver we_cd = { NULL, "we", DV_IFNET }; const char *we_params(bus_space_tag_t, bus_space_handle_t, u_int8_t *, bus_size_t *, int *, int *); void we_media_init(struct dp8390_softc *); int we_mediachange(struct dp8390_softc *); void we_mediastatus(struct dp8390_softc *, struct ifmediareq *); void we_recv_int(struct dp8390_softc *); int we_write_mbuf(struct dp8390_softc *, struct mbuf *, int); int we_ring_copy(struct dp8390_softc *, int, caddr_t, u_short); void we_read_hdr(struct dp8390_softc *, int, struct dp8390_ring *); int we_test_mem(struct dp8390_softc *); __inline void we_readmem(struct we_softc *, int, u_int8_t *, int); static const int we_584_irq[] = { 9, 3, 5, 7, 10, 11, 15, 4, }; #define NWE_584_IRQ (sizeof(we_584_irq) / sizeof(we_584_irq[0])) static const int we_790_irq[] = { IRQUNK, 9, 3, 5, 7, 10, 11, 15, }; #define NWE_790_IRQ (sizeof(we_790_irq) / sizeof(we_790_irq[0])) /* * Delay needed when switching 16-bit access to shared memory. */ #define WE_DELAY(wsc) delay(3) /* * Enable card RAM, and 16-bit access. */ #define WE_MEM_ENABLE(wsc) \ do { \ if ((wsc)->sc_16bitp) \ bus_space_write_1((wsc)->sc_asict, (wsc)->sc_asich, \ WE_LAAR, (wsc)->sc_laar_proto | WE_LAAR_M16EN); \ bus_space_write_1((wsc)->sc_asict, (wsc)->sc_asich, \ WE_MSR, wsc->sc_msr_proto | WE_MSR_MENB); \ WE_DELAY((wsc)); \ } while (0) /* * Disable card RAM, and 16-bit access. */ #define WE_MEM_DISABLE(wsc) \ do { \ bus_space_write_1((wsc)->sc_asict, (wsc)->sc_asich, \ WE_MSR, (wsc)->sc_msr_proto); \ if ((wsc)->sc_16bitp) \ bus_space_write_1((wsc)->sc_asict, (wsc)->sc_asich, \ WE_LAAR, (wsc)->sc_laar_proto); \ WE_DELAY((wsc)); \ } while (0) int we_probe(struct device *parent, void *match, void *aux) { struct isa_attach_args *ia = aux; struct cfdata *cf = match; bus_space_tag_t asict, memt; bus_space_handle_t asich, memh; bus_size_t memsize; int asich_valid, memh_valid; int i, is790, rv = 0; u_int8_t x, type; asict = ia->ia_iot; memt = ia->ia_memt; asich_valid = memh_valid = 0; /* Disallow wildcarded i/o addresses. */ if (ia->ia_iobase == -1 /* ISACF_PORT_DEFAULT */) return (0); /* Disallow wildcarded mem address. */ if (ia->ia_maddr == -1 /* ISACF_IOMEM_DEFAULT */) return (0); /* Attempt to map the device. */ if (!strcmp(parent->dv_cfdata->cf_driver->cd_name, "isapnp") && ia->ia_ioh) asich = ia->ia_ioh; else { if (bus_space_map(asict, ia->ia_iobase, WE_NPORTS, 0, &asich)) goto out; asich_valid = 1; } #ifdef TOSH_ETHER bus_space_write_1(asict, asich, WE_MSR, WE_MSR_POW); #endif /* * Attempt to do a checksum over the station address PROM. * If it fails, it's probably not a WD/SMC board. There is * a problem with this, though. Some clone WD8003E boards * (e.g. Danpex) won't pass the checksum. In this case, * the checksum byte always seems to be 0. */ for (x = 0, i = 0; i < 8; i++) x += bus_space_read_1(asict, asich, WE_PROM + i); if (x != WE_ROM_CHECKSUM_TOTAL) { /* Make sure it's an 8003E clone... */ if (bus_space_read_1(asict, asich, WE_CARD_ID) != WE_TYPE_WD8003E) goto out; /* Check the checksum byte. */ if (bus_space_read_1(asict, asich, WE_PROM + 7) != 0) goto out; } /* * Reset the card to force it into a known state. */ #ifdef TOSH_ETHER bus_space_write_1(asict, asich, WE_MSR, WE_MSR_RST | WE_MSR_POW); #else bus_space_write_1(asict, asich, WE_MSR, WE_MSR_RST); #endif delay(100); bus_space_write_1(asict, asich, WE_MSR, bus_space_read_1(asict, asich, WE_MSR) & ~WE_MSR_RST); /* Wait in case the card is reading its EEPROM. */ delay(5000); /* * Get parameters. */ if (we_params(asict, asich, &type, &memsize, NULL, &is790) == NULL) goto out; /* Allow user to override probed value. */ if (ia->ia_msize) memsize = ia->ia_msize; /* Attempt to map the memory space. */ if (!strcmp(parent->dv_cfdata->cf_driver->cd_name, "isapnp") && ia->ia_memh) memh = ia->ia_memh; else { if (bus_space_map(memt, ia->ia_maddr, memsize, 0, &memh)) goto out; memh_valid = 1; } /* * If possible, get the assigned interrupt number from the card * and use it. */ if (is790) { u_int8_t hwr; /* Assemble together the encoded interrupt number. */ hwr = bus_space_read_1(asict, asich, WE790_HWR); bus_space_write_1(asict, asich, WE790_HWR, hwr | WE790_HWR_SWH); x = bus_space_read_1(asict, asich, WE790_GCR); i = ((x & WE790_GCR_IR2) >> 4) | ((x & (WE790_GCR_IR1|WE790_GCR_IR0)) >> 2); bus_space_write_1(asict, asich, WE790_HWR, hwr & ~WE790_HWR_SWH); if (ia->ia_irq != IRQUNK && ia->ia_irq != we_790_irq[i]) printf("%s%d: changing IRQ %d to %d\n", we_cd.cd_name, cf->cf_unit, ia->ia_irq, we_790_irq[i]); ia->ia_irq = we_790_irq[i]; } else if (type & WE_SOFTCONFIG) { /* Assemble together the encoded interrupt number. */ i = (bus_space_read_1(asict, asich, WE_ICR) & WE_ICR_IR2) | ((bus_space_read_1(asict, asich, WE_IRR) & (WE_IRR_IR0 | WE_IRR_IR1)) >> 5); if (ia->ia_irq != IRQUNK && ia->ia_irq != we_584_irq[i]) printf("%s%d: changing IRQ %d to %d\n", we_cd.cd_name, cf->cf_unit, ia->ia_irq, we_584_irq[i]); ia->ia_irq = we_584_irq[i]; } /* So, we say we've found it! */ ia->ia_iosize = WE_NPORTS; ia->ia_msize = memsize; rv = 1; out: if (asich_valid) bus_space_unmap(asict, asich, WE_NPORTS); if (memh_valid) bus_space_unmap(memt, memh, memsize); return (rv); } void we_attach(struct device *parent, struct device *self, void *aux) { struct we_softc *wsc = (struct we_softc *)self; struct dp8390_softc *sc = &wsc->sc_dp8390; struct isa_attach_args *ia = aux; bus_space_tag_t nict, asict, memt; bus_space_handle_t nich, asich, memh; const char *typestr; u_int8_t x; int i; printf("\n"); nict = asict = ia->ia_iot; memt = ia->ia_memt; /* Map the device. */ if (!strcmp(parent->dv_cfdata->cf_driver->cd_name, "isapnp") && ia->ia_ioh) asich = ia->ia_ioh; else if (bus_space_map(asict, ia->ia_iobase, WE_NPORTS, 0, &asich)) { printf("%s: can't map nic i/o space\n", sc->sc_dev.dv_xname); return; } if (bus_space_subregion(asict, asich, WE_NIC_OFFSET, WE_NIC_NPORTS, &nich)) { printf("%s: can't subregion i/o space\n", sc->sc_dev.dv_xname); return; } typestr = we_params(asict, asich, &wsc->sc_type, NULL, &wsc->sc_16bitp, &sc->is790); if (typestr == NULL) { printf("%s: where did the card go?\n", sc->sc_dev.dv_xname); return; } /* * Map memory space. Note we use the size that might have * been overridden by the user. */ if (!strcmp(parent->dv_cfdata->cf_driver->cd_name, "isapnp") && ia->ia_memh) memh = ia->ia_memh; else if (bus_space_map(memt, ia->ia_maddr, ia->ia_msize, 0, &memh)) { printf("%s: can't map shared memory\n", sc->sc_dev.dv_xname); return; } /* * Allow user to override 16-bit mode. 8-bit takes precedence. */ if (self->dv_cfdata->cf_flags & WE_FLAGS_FORCE_16BIT_MODE) wsc->sc_16bitp = 1; if (self->dv_cfdata->cf_flags & WE_FLAGS_FORCE_8BIT_MODE) wsc->sc_16bitp = 0; wsc->sc_asict = asict; wsc->sc_asich = asich; sc->sc_regt = nict; sc->sc_regh = nich; sc->sc_buft = memt; sc->sc_bufh = memh; /* Interface is always enabled. */ sc->sc_enabled = 1; /* Registers are linear. */ for (i = 0; i < 16; i++) sc->sc_reg_map[i] = i; /* Now we can use the NIC_{GET,PUT}() macros. */ printf("%s: %s (%s-bit)", sc->sc_dev.dv_xname, typestr, wsc->sc_16bitp ? "16" : "8"); /* Get station address from EEPROM. */ for (i = 0; i < ETHER_ADDR_LEN; i++) sc->sc_arpcom.ac_enaddr[i] = bus_space_read_1(asict, asich, WE_PROM + i); /* * Set upper address bits and 8/16 bit access to shared memory. */ if (sc->is790) { wsc->sc_laar_proto = bus_space_read_1(asict, asich, WE_LAAR) & ~WE_LAAR_M16EN; bus_space_write_1(asict, asich, WE_LAAR, wsc->sc_laar_proto | (wsc->sc_16bitp ? WE_LAAR_M16EN : 0)); } else if ((wsc->sc_type & WE_SOFTCONFIG) || #ifdef TOSH_ETHER (wsc->sc_type == WE_TYPE_TOSHIBA1) || (wsc->sc_type == WE_TYPE_TOSHIBA4) || #endif (wsc->sc_type == WE_TYPE_WD8013EBT)) { wsc->sc_laar_proto = (ia->ia_maddr >> 19) & WE_LAAR_ADDRHI; if (wsc->sc_16bitp) wsc->sc_laar_proto |= WE_LAAR_L16EN; bus_space_write_1(asict, asich, WE_LAAR, wsc->sc_laar_proto | (wsc->sc_16bitp ? WE_LAAR_M16EN : 0)); } /* * Set address and enable interface shared memory. */ if (sc->is790) { /* XXX MAGIC CONSTANTS XXX */ x = bus_space_read_1(asict, asich, 0x04); bus_space_write_1(asict, asich, 0x04, x | 0x80); bus_space_write_1(asict, asich, 0x0b, ((ia->ia_maddr >> 13) & 0x0f) | ((ia->ia_maddr >> 11) & 0x40) | (bus_space_read_1(asict, asich, 0x0b) & 0xb0)); bus_space_write_1(asict, asich, 0x04, x); wsc->sc_msr_proto = 0x00; sc->cr_proto = 0x00; } else { #ifdef TOSH_ETHER if (wsc->sc_type == WE_TYPE_TOSHIBA1 || wsc->sc_type == WE_TYPE_TOSHIBA4) { bus_space_write_1(asict, asich, WE_MSR + 1, ((ia->ia_maddr >> 8) & 0xe0) | 0x04); bus_space_write_1(asict, asich, WE_MSR + 2, ((ia->ia_maddr >> 16) & 0x0f)); wsc->sc_msr_proto = WE_MSR_POW; } else #endif wsc->sc_msr_proto = (ia->ia_maddr >> 13) & WE_MSR_ADDR; sc->cr_proto = ED_CR_RD2; } bus_space_write_1(asict, asich, WE_MSR, wsc->sc_msr_proto | WE_MSR_MENB); WE_DELAY(wsc); /* * DCR gets: * * FIFO threshold to 8, No auto-init Remote DMA, * byte order=80x86. * * 16-bit cards also get word-wide DMA transfers. */ sc->dcr_reg = ED_DCR_FT1 | ED_DCR_LS | (wsc->sc_16bitp ? ED_DCR_WTS : 0); sc->test_mem = we_test_mem; sc->ring_copy = we_ring_copy; sc->write_mbuf = we_write_mbuf; sc->read_hdr = we_read_hdr; sc->recv_int = we_recv_int; sc->sc_mediachange = we_mediachange; sc->sc_mediastatus = we_mediastatus; sc->mem_start = 0; sc->mem_size = ia->ia_msize; sc->sc_flags = self->dv_cfdata->cf_flags; /* Do generic parts of attach. */ if (wsc->sc_type & WE_SOFTCONFIG) sc->sc_media_init = we_media_init; else sc->sc_media_init = dp8390_media_init; if (dp8390_config(sc)) { printf(": configuration failed\n"); return; } /* * Disable 16-bit access to shared memory - we leave it disabled * so that: * * (1) machines reboot properly when the board is set to * 16-bit mode and there are conflicting 8-bit devices * within the same 128k address space as this board's * shared memory, and * * (2) so that other 8-bit devices with shared memory * in this same 128k address space will work. */ WE_MEM_DISABLE(wsc); /* * Enable the configured interrupt. */ if (sc->is790) bus_space_write_1(asict, asich, WE790_ICR, bus_space_read_1(asict, asich, WE790_ICR) | WE790_ICR_EIL); else if (wsc->sc_type & WE_SOFTCONFIG) bus_space_write_1(asict, asich, WE_IRR, bus_space_read_1(asict, asich, WE_IRR) | WE_IRR_IEN); else if (ia->ia_irq == IRQUNK) { printf("%s: can't wildcard IRQ on a %s\n", sc->sc_dev.dv_xname, typestr); return; } /* Establish interrupt handler. */ wsc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, IPL_NET, dp8390_intr, sc, sc->sc_dev.dv_xname); if (wsc->sc_ih == NULL) printf("%s: can't establish interrupt\n", sc->sc_dev.dv_xname); } int we_test_mem(struct dp8390_softc *sc) { struct we_softc *wsc = (struct we_softc *)sc; bus_space_tag_t memt = sc->sc_buft; bus_space_handle_t memh = sc->sc_bufh; bus_size_t memsize = sc->mem_size; int i; if (wsc->sc_16bitp) bus_space_set_region_2(memt, memh, 0, 0, memsize >> 1); else bus_space_set_region_1(memt, memh, 0, 0, memsize); if (wsc->sc_16bitp) { for (i = 0; i < memsize; i += 2) { if (bus_space_read_2(memt, memh, i) != 0) goto fail; } } else { for (i = 0; i < memsize; i++) { if (bus_space_read_1(memt, memh, i) != 0) goto fail; } } return (0); fail: printf("%s: failed to clear shared memory at offset 0x%x\n", sc->sc_dev.dv_xname, i); WE_MEM_DISABLE(wsc); return (1); } /* * Given a NIC memory source address and a host memory destination address, * copy 'len' from NIC to host using shared memory. The 'len' is rounded * up to a word - ok as long as mbufs are word-sized. */ __inline void we_readmem(struct we_softc *wsc, int from, u_int8_t *to, int len) { bus_space_tag_t memt = wsc->sc_dp8390.sc_buft; bus_space_handle_t memh = wsc->sc_dp8390.sc_bufh; if (len & 1) ++len; if (wsc->sc_16bitp) bus_space_read_region_stream_2(memt, memh, from, (u_int16_t *)to, len >> 1); else bus_space_read_region_1(memt, memh, from, to, len); } int we_write_mbuf(struct dp8390_softc *sc, struct mbuf *m, int buf) { struct we_softc *wsc = (struct we_softc *)sc; bus_space_tag_t memt = wsc->sc_dp8390.sc_buft; bus_space_handle_t memh = wsc->sc_dp8390.sc_bufh; u_int8_t *data, savebyte[2]; int savelen, len, leftover; #ifdef DIAGNOSTIC u_int8_t *lim; #endif savelen = m->m_pkthdr.len; WE_MEM_ENABLE(wsc); /* * 8-bit boards are simple; no alignment tricks are necessary. */ if (wsc->sc_16bitp == 0) { for (; m != NULL; buf += m->m_len, m = m->m_next) bus_space_write_region_1(memt, memh, buf, mtod(m, u_int8_t *), m->m_len); goto out; } /* Start out with no leftover data. */ leftover = 0; savebyte[0] = savebyte[1] = 0; for (; m != NULL; m = m->m_next) { len = m->m_len; if (len == 0) continue; data = mtod(m, u_int8_t *); #ifdef DIAGNOSTIC lim = data + len; #endif while (len > 0) { if (leftover) { /* * Data left over (from mbuf or realignment). * Buffer the next byte, and write it and * the leftover data out. */ savebyte[1] = *data++; len--; bus_space_write_stream_2(memt, memh, buf, *(u_int16_t *)savebyte); buf += 2; leftover = 0; } else if (ALIGNED_POINTER(data, u_int16_t) == 0) { /* * Unaligned dta; buffer the next byte. */ savebyte[0] = *data++; len--; leftover = 1; } else { /* * Aligned data; output contiguous words as * much as we can, then buffer the remaining * byte, if any. */ leftover = len & 1; len &= ~1; bus_space_write_region_stream_2(memt, memh, buf, (u_int16_t *)data, len >> 1); data += len; buf += len; if (leftover) savebyte[0] = *data++; len = 0; } } if (len < 0) panic("we_write_mbuf: negative len"); #ifdef DIAGNOSTIC if (data != lim) panic("we_write_mbuf: data != lim"); #endif } if (leftover) { savebyte[1] = 0; bus_space_write_stream_2(memt, memh, buf, *(u_int16_t *)savebyte); } out: WE_MEM_DISABLE(wsc); return (savelen); } int we_ring_copy(struct dp8390_softc *sc, int src, caddr_t dst, u_short amount) { struct we_softc *wsc = (struct we_softc *)sc; u_short tmp_amount; /* Does copy wrap to lower addr in ring buffer? */ if (src + amount > sc->mem_end) { tmp_amount = sc->mem_end - src; /* Copy amount up to end of NIC memory. */ we_readmem(wsc, src, dst, tmp_amount); amount -= tmp_amount; src = sc->mem_ring; dst += tmp_amount; } we_readmem(wsc, src, dst, amount); return (src + amount); } void we_read_hdr(struct dp8390_softc *sc, int packet_ptr, struct dp8390_ring *packet_hdrp) { struct we_softc *wsc = (struct we_softc *)sc; we_readmem(wsc, packet_ptr, (u_int8_t *)packet_hdrp, sizeof(struct dp8390_ring)); #if BYTE_ORDER == BIG_ENDIAN packet_hdrp->count = swap16(packet_hdrp->count); #endif } void we_recv_int(struct dp8390_softc *sc) { struct we_softc *wsc = (struct we_softc *)sc; WE_MEM_ENABLE(wsc); dp8390_rint(sc); WE_MEM_DISABLE(wsc); } void we_media_init(struct dp8390_softc *sc) { struct we_softc *wsc = (void *)sc; int defmedia = IFM_ETHER; u_int8_t x; if (sc->is790) { x = bus_space_read_1(wsc->sc_asict, wsc->sc_asich, WE790_HWR); bus_space_write_1(wsc->sc_asict, wsc->sc_asich, WE790_HWR, x | WE790_HWR_SWH); if (bus_space_read_1(wsc->sc_asict, wsc->sc_asich, WE790_GCR) & WE790_GCR_GPOUT) defmedia |= IFM_10_2; else defmedia |= IFM_10_5; bus_space_write_1(wsc->sc_asict, wsc->sc_asich, WE790_HWR, x &~ WE790_HWR_SWH); } else { x = bus_space_read_1(wsc->sc_asict, wsc->sc_asich, WE_IRR); if (x & WE_IRR_OUT2) defmedia |= IFM_10_2; else defmedia |= IFM_10_5; } ifmedia_init(&sc->sc_media, 0, dp8390_mediachange, dp8390_mediastatus); ifmedia_add(&sc->sc_media, IFM_ETHER|IFM_10_2, 0, NULL); ifmedia_add(&sc->sc_media, IFM_ETHER|IFM_10_5, 0, NULL); ifmedia_set(&sc->sc_media, defmedia); } int we_mediachange(struct dp8390_softc *sc) { /* * Current media is already set up. Just reset the interface * to let the new value take hold. The new media will be * set up in dp8390_init(). */ dp8390_reset(sc); return (0); } void we_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr) { struct ifmedia *ifm = &sc->sc_media; /* * The currently selected media is always the active media. */ ifmr->ifm_active = ifm->ifm_cur->ifm_media; } const char * we_params(bus_space_tag_t asict, bus_space_handle_t asich, u_int8_t *typep, bus_size_t *memsizep, int *is16bitp, int *is790p) { const char *typestr; bus_size_t memsize; int is16bit, is790; u_int8_t type; memsize = 8192; is16bit = is790 = 0; type = bus_space_read_1(asict, asich, WE_CARD_ID); switch (type) { case WE_TYPE_WD8003S: typestr = "WD8003S"; break; case WE_TYPE_WD8003E: typestr = "WD8003E"; break; case WE_TYPE_WD8003EB: typestr = "WD8003EB"; break; case WE_TYPE_WD8003W: typestr = "WD8003W"; break; case WE_TYPE_WD8013EBT: typestr = "WD8013EBT"; memsize = 16384; is16bit = 1; break; case WE_TYPE_WD8013W: typestr = "WD8013W"; memsize = 16384; is16bit = 1; break; case WE_TYPE_WD8013EP: /* also WD8003EP */ if (bus_space_read_1(asict, asich, WE_ICR) & WE_ICR_16BIT) { is16bit = 1; memsize = 16384; typestr = "WD8013EP"; } else typestr = "WD8003EP"; break; case WE_TYPE_WD8013WC: typestr = "WD8013WC"; memsize = 16384; is16bit = 1; break; case WE_TYPE_WD8013EBP: typestr = "WD8013EBP"; memsize = 16384; is16bit = 1; break; case WE_TYPE_WD8013EPC: typestr = "WD8013EPC"; memsize = 16384; is16bit = 1; break; case WE_TYPE_SMC8216C: case WE_TYPE_SMC8216T: { u_int8_t hwr; typestr = (type == WE_TYPE_SMC8216C) ? "SMC8216/SMC8216C" : "SMC8216T"; hwr = bus_space_read_1(asict, asich, WE790_HWR); bus_space_write_1(asict, asich, WE790_HWR, hwr | WE790_HWR_SWH); switch (bus_space_read_1(asict, asich, WE790_RAR) & WE790_RAR_SZ64) { case WE790_RAR_SZ64: memsize = 65536; break; case WE790_RAR_SZ32: memsize = 32768; break; case WE790_RAR_SZ16: memsize = 16384; break; case WE790_RAR_SZ8: /* 8216 has 16K shared mem -- 8416 has 8K */ typestr = (type == WE_TYPE_SMC8216C) ? "SMC8416C/SMC8416BT" : "SMC8416T"; memsize = 8192; break; } bus_space_write_1(asict, asich, WE790_HWR, hwr); is16bit = 1; is790 = 1; break; } #ifdef TOSH_ETHER case WE_TYPE_TOSHIBA1: typestr = "Toshiba1"; memsize = 32768; is16bit = 1; break; case WE_TYPE_TOSHIBA4: typestr = "Toshiba4"; memsize = 32768; is16bit = 1; break; #endif default: /* Not one we recognize. */ return (NULL); } /* * Make some adjustments to initial values depending on what is * found in the ICR. */ if (is16bit && (type != WE_TYPE_WD8013EBT) && #ifdef TOSH_ETHER (type != WE_TYPE_TOSHIBA1 && type != WE_TYPE_TOSHIBA4) && #endif (bus_space_read_1(asict, asich, WE_ICR) & WE_ICR_16BIT) == 0) { is16bit = 0; memsize = 8192; } #ifdef WE_DEBUG { int i; printf("we_params: type = 0x%x, typestr = %s, is16bit = %d, " "memsize = %d\n", type, typestr, is16bit, memsize); for (i = 0; i < 8; i++) printf(" %d -> 0x%x\n", i, bus_space_read_1(asict, asich, i)); } #endif if (typep != NULL) *typep = type; if (memsizep != NULL) *memsizep = memsize; if (is16bitp != NULL) *is16bitp = is16bit; if (is790p != NULL) *is790p = is790; return (typestr); }