/* $NetBSD: if_we_isa.c,v 1.23 2014/10/18 08:33:28 snj 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 __KERNEL_RCSID(0, "$NetBSD: if_we_isa.c,v 1.23 2014/10/18 08:33:28 snj Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "ioconf.h" #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 int we_isa_probe(device_t, cfdata_t , void *); void we_isa_attach(device_t, device_t, void *); CFATTACH_DECL_NEW(we_isa, sizeof(struct we_softc), we_isa_probe, we_isa_attach, NULL, NULL); static const char *we_params(bus_space_tag_t, bus_space_handle_t, uint8_t *, bus_size_t *, uint8_t *, int *); static const int we_584_irq[] = { 9, 3, 5, 7, 10, 11, 15, 4, }; static const int we_790_irq[] = { ISA_UNKNOWN_IRQ, 9, 3, 5, 7, 10, 11, 15, }; int we_isa_probe(device_t parent, cfdata_t cf, void *aux) { struct isa_attach_args *ia = aux; 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; uint8_t x, type; asict = ia->ia_iot; memt = ia->ia_memt; asich_valid = memh_valid = 0; if (ia->ia_nio < 1) return 0; if (ia->ia_niomem < 1) return 0; if (ia->ia_nirq < 1) return 0; if (ISA_DIRECT_CONFIG(ia)) return 0; /* Disallow wildcarded i/o addresses. */ if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) return 0; /* Disallow wildcarded mem address. */ if (ia->ia_iomem[0].ir_addr == ISA_UNKNOWN_IOMEM) return 0; /* Attempt to map the device. */ if (bus_space_map(asict, ia->ia_io[0].ir_addr, 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_iomem[0].ir_size) memsize = ia->ia_iomem[0].ir_size; /* Attempt to map the memory space. */ if (bus_space_map(memt, ia->ia_iomem[0].ir_addr, memsize, 0, &memh)) goto out; memh_valid = 1; /* * If possible, get the assigned interrupt number from the card * and use it. */ if (is790) { uint8_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[0].ir_irq != ISA_UNKNOWN_IRQ && ia->ia_irq[0].ir_irq != we_790_irq[i]) aprint_error("%s%d: overriding configured " "IRQ %d to %d\n", we_cd.cd_name, cf->cf_unit, ia->ia_irq[0].ir_irq, we_790_irq[i]); ia->ia_irq[0].ir_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[0].ir_irq != ISA_UNKNOWN_IRQ && ia->ia_irq[0].ir_irq != we_584_irq[i]) aprint_error("%s%d: overriding configured " "IRQ %d to %d\n", we_cd.cd_name, cf->cf_unit, ia->ia_irq[0].ir_irq, we_584_irq[i]); ia->ia_irq[0].ir_irq = we_584_irq[i]; } /* So, we say we've found it! */ ia->ia_nio = 1; ia->ia_io[0].ir_size = WE_NPORTS; ia->ia_niomem = 1; ia->ia_iomem[0].ir_size = memsize; ia->ia_nirq = 1; ia->ia_ndrq = 0; 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_isa_attach(device_t parent, device_t self, void *aux) { struct we_softc *wsc = device_private(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; aprint_normal("\n"); sc->sc_dev = self; nict = asict = ia->ia_iot; memt = ia->ia_memt; /* Map the device. */ if (bus_space_map(asict, ia->ia_io[0].ir_addr, WE_NPORTS, 0, &asich)) { aprint_error_dev(self, "can't map nic i/o space\n"); return; } if (bus_space_subregion(asict, asich, WE_NIC_OFFSET, WE_NIC_NPORTS, &nich)) { aprint_error_dev(self, "can't subregion i/o space\n"); return; } typestr = we_params(asict, asich, &wsc->sc_type, NULL, &wsc->sc_flags, &sc->is790); if (typestr == NULL) { aprint_error_dev(self, "where did the card go?\n"); return; } /* * Map memory space. Note we use the size that might have * been overridden by the user. */ if (bus_space_map(memt, ia->ia_iomem[0].ir_addr, ia->ia_iomem[0].ir_size, 0, &memh)) { aprint_error_dev(self, "can't map shared memory\n"); return; } wsc->sc_asict = asict; wsc->sc_asich = asich; sc->sc_regt = nict; sc->sc_regh = nich; sc->sc_buft = memt; sc->sc_bufh = memh; wsc->sc_maddr = ia->ia_iomem[0].ir_addr; sc->mem_size = ia->ia_iomem[0].ir_size; /* Interface is always enabled. */ sc->sc_enabled = 1; if (we_config(self, wsc, typestr)) return; /* * 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[0].ir_irq == ISA_UNKNOWN_IRQ) { aprint_error_dev(self, "can't wildcard IRQ on a %s\n", typestr); return; } /* Establish interrupt handler. */ wsc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, IST_EDGE, IPL_NET, dp8390_intr, sc); if (wsc->sc_ih == NULL) aprint_error_dev(self, "can't establish interrupt\n"); } static const char * we_params(bus_space_tag_t asict, bus_space_handle_t asich, uint8_t *typep, bus_size_t *memsizep, uint8_t *flagp, int *is790p) { const char *typestr; bus_size_t memsize; int is16bit, is790; uint8_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: { uint8_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 = %ld\n", type, typestr, is16bit, (u_long)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 (flagp != NULL && is16bit) *flagp |= WE_16BIT_ENABLE; if (is790p != NULL) *is790p = is790; return typestr; }