/* $NetBSD: if_en_pci.c,v 1.1 1996/06/22 02:00:31 chuck Exp $ */ /* * * Copyright (c) 1996 Charles D. Cranor and Washington University. * All rights reserved. * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Charles D. Cranor and * Washington University. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. * * $FreeBSD: src/sys/pci/if_en_pci.c,v 1.12 1999/08/21 22:10:49 msmith Exp $ * $DragonFly: src/sys/dev/netif/en_pci/if_en_pci.c,v 1.4 2003/08/27 09:38:30 rob Exp $ */ /* * * i f _ e n _ p c i . c * * author: Chuck Cranor * started: spring, 1996. * * FreeBSD PCI glue for the eni155p card. * thanks to Matt Thomas for figuring out FreeBSD vs NetBSD vs etc.. diffs. */ #include "use_en.h" #include #include #include #if defined(__FreeBSD__) #include #endif #include #include #include /* for DELAY */ #include #include #include #include #include /* * prototypes */ static void en_pci_attach (pcici_t, int); static const char *en_pci_probe (pcici_t, pcidi_t); static void en_pci_shutdown (void *, int); /* * local structures */ struct en_pci_softc { /* bus independent stuff */ struct en_softc esc; /* includes "device" structure */ /* PCI bus glue */ void *sc_ih; /* interrupt handle */ pci_chipset_tag_t en_pc; /* for PCI calls */ pcici_t en_confid; /* config id */ }; #if !defined(MIDWAY_ENIONLY) static void eni_get_macaddr (struct en_pci_softc *); #endif #if !defined(MIDWAY_ADPONLY) static void adp_get_macaddr (struct en_pci_softc *); #endif /* * pointers to softcs (we alloc) */ static struct en_pci_softc *enpcis[NEN] = {0}; extern struct cfdriver en_cd; /* * autoconfig structures */ static u_long en_pci_count; static struct pci_device endevice = { "en", en_pci_probe, en_pci_attach, &en_pci_count, NULL, }; COMPAT_PCI_DRIVER (en, endevice); /* * local defines (PCI specific stuff) */ /* * address of config base memory address register in PCI config space * (this is card specific) */ #define PCI_CBMA 0x10 /* * tonga (pci bridge). ENI cards only! */ #define EN_TONGA 0x60 /* PCI config addr of tonga reg */ #define TONGA_SWAP_DMA 0x80 /* endian swap control */ #define TONGA_SWAP_BYTE 0x40 #define TONGA_SWAP_WORD 0x20 /* * adaptec pci bridge. ADP cards only! */ #define ADP_PCIREG 0x050040 /* PCI control register */ #define ADP_PCIREG_RESET 0x1 /* reset card */ #define ADP_PCIREG_IENABLE 0x2 /* interrupt enable */ #define ADP_PCIREG_SWAP_WORD 0x4 /* swap byte on slave access */ #define ADP_PCIREG_SWAP_DMA 0x8 /* swap byte on DMA */ #define PCI_VENDOR_EFFICIENTNETS 0x111a /* Efficent Networks */ #define PCI_PRODUCT_EFFICIENTNETS_ENI155PF 0x0000 /* ENI-155P ATM */ #define PCI_PRODUCT_EFFICIENTNETS_ENI155PA 0x0002 /* ENI-155P ATM */ #define PCI_VENDOR_ADP 0x9004 /* adaptec */ #define PCI_PRODUCT_ADP_AIC5900 0x5900 #define PCI_PRODUCT_ADP_AIC5905 0x5905 #define PCI_VENDOR(x) ((x) & 0xFFFF) #define PCI_CHIPID(x) (((x) >> 16) & 0xFFFF) #if !defined(MIDWAY_ENIONLY) static void adp_busreset (void *); /* * bus specific reset function [ADP only!] */ static void adp_busreset(v) void *v; { struct en_softc *sc = (struct en_softc *) v; u_int32_t dummy; bus_space_write_4(sc->en_memt, sc->en_base, ADP_PCIREG, ADP_PCIREG_RESET); DELAY(1000); /* let it reset */ dummy = bus_space_read_4(sc->en_memt, sc->en_base, ADP_PCIREG); bus_space_write_4(sc->en_memt, sc->en_base, ADP_PCIREG, (ADP_PCIREG_SWAP_WORD|ADP_PCIREG_SWAP_DMA|ADP_PCIREG_IENABLE)); dummy = bus_space_read_4(sc->en_memt, sc->en_base, ADP_PCIREG); if ((dummy & (ADP_PCIREG_SWAP_WORD|ADP_PCIREG_SWAP_DMA)) != (ADP_PCIREG_SWAP_WORD|ADP_PCIREG_SWAP_DMA)) printf("adp_busreset: Adaptec ATM did NOT reset!\n"); } #endif /***********************************************************************/ /* * autoconfig stuff */ static const char *en_pci_probe(config_id, device_id) pcici_t config_id; pcidi_t device_id; { #if !defined(MIDWAY_ADPONLY) if (PCI_VENDOR(device_id) == PCI_VENDOR_EFFICIENTNETS && (PCI_CHIPID(device_id) == PCI_PRODUCT_EFFICIENTNETS_ENI155PF || PCI_CHIPID(device_id) == PCI_PRODUCT_EFFICIENTNETS_ENI155PA)) return "Efficient Networks ENI-155p"; #endif #if !defined(MIDWAY_ENIONLY) if (PCI_VENDOR(device_id) == PCI_VENDOR_ADP && (PCI_CHIPID(device_id) == PCI_PRODUCT_ADP_AIC5900 || PCI_CHIPID(device_id) == PCI_PRODUCT_ADP_AIC5905)) return "Adaptec 155 ATM"; #endif return 0; } static void en_pci_attach(config_id, unit) pcici_t config_id; int unit; { struct en_softc *sc; struct en_pci_softc *scp; pcidi_t device_id; int retval; vm_offset_t pa; if (unit >= NEN) { printf("en%d: not configured; kernel is built for only %d device%s.\n", unit, NEN, NEN == 1 ? "" : "s"); return; } scp = (struct en_pci_softc *) malloc(sizeof(*scp), M_DEVBUF, M_NOWAIT); if (scp == NULL) return; bzero(scp, sizeof(*scp)); /* zero */ sc = &scp->esc; retval = pci_map_mem(config_id, PCI_CBMA, (vm_offset_t *) &sc->en_base, &pa); if (!retval) { free((caddr_t) scp, M_DEVBUF); return; } enpcis[unit] = scp; /* lock it in */ en_cd.cd_devs[unit] = sc; /* fake a cfdriver structure */ en_cd.cd_ndevs = NEN; snprintf(sc->sc_dev.dv_xname, sizeof(sc->sc_dev.dv_xname), "en%d", unit); sc->enif.if_unit = unit; sc->enif.if_name = "en"; scp->en_confid = config_id; /* * figure out if we are an adaptec card or not. * XXX: why do we have to re-read PC_ID_REG when en_pci_probe already * had that info? */ device_id = pci_conf_read(config_id, PCI_ID_REG); sc->is_adaptec = (PCI_VENDOR(device_id) == PCI_VENDOR_ADP) ? 1 : 0; /* * Add shutdown hook so that DMA is disabled prior to reboot. Not * doing so could allow DMA to corrupt kernel memory during the * reboot before the driver initializes. */ EVENTHANDLER_REGISTER(shutdown_post_sync, en_pci_shutdown, scp, SHUTDOWN_PRI_DEFAULT); if (!pci_map_int(config_id, en_intr, (void *) sc, &net_imask)) { printf("%s: couldn't establish interrupt\n", sc->sc_dev.dv_xname); return; } sc->ipl = 1; /* XXX */ /* * set up pci bridge */ #if !defined(MIDWAY_ENIONLY) if (sc->is_adaptec) { adp_get_macaddr(scp); sc->en_busreset = adp_busreset; adp_busreset(sc); } #endif #if !defined(MIDWAY_ADPONLY) if (!sc->is_adaptec) { eni_get_macaddr(scp); sc->en_busreset = NULL; pci_conf_write(config_id, EN_TONGA, (TONGA_SWAP_DMA|TONGA_SWAP_WORD)); } #endif /* * done PCI specific stuff */ en_attach(sc); } static void en_pci_shutdown( void *sc, int howto) { struct en_pci_softc *psc = (struct en_pci_softc *)sc; en_reset(&psc->esc); DELAY(10); } #if !defined(MIDWAY_ENIONLY) #if defined(sparc) || defined(__FreeBSD__) #define bus_space_read_1(t, h, o) \ ((void)t, (*(volatile u_int8_t *)((h) + (o)))) #endif static void adp_get_macaddr(scp) struct en_pci_softc *scp; { struct en_softc * sc = (struct en_softc *)scp; int lcv; for (lcv = 0; lcv < sizeof(sc->macaddr); lcv++) sc->macaddr[lcv] = bus_space_read_1(sc->en_memt, sc->en_base, MID_ADPMACOFF + lcv); } #endif /* MIDWAY_ENIONLY */ #if !defined(MIDWAY_ADPONLY) /* * Read station (MAC) address from serial EEPROM. * derived from linux drivers/atm/eni.c by Werner Almesberger, EPFL LRC. */ #define EN_PROM_MAGIC 0x0c #define EN_PROM_DATA 0x02 #define EN_PROM_CLK 0x01 #define EN_ESI 64 static void eni_get_macaddr(scp) struct en_pci_softc *scp; { struct en_softc * sc = (struct en_softc *)scp; pcici_t id = scp->en_confid; int i, j, address, status; u_int32_t data, t_data; u_int8_t tmp; t_data = pci_conf_read(id, EN_TONGA) & 0xffffff00; data = EN_PROM_MAGIC | EN_PROM_DATA | EN_PROM_CLK; pci_conf_write(id, EN_TONGA, data); for (i = 0; i < sizeof(sc->macaddr); i ++){ /* start operation */ data |= EN_PROM_DATA ; pci_conf_write(id, EN_TONGA, data); data |= EN_PROM_CLK ; pci_conf_write(id, EN_TONGA, data); data &= ~EN_PROM_DATA ; pci_conf_write(id, EN_TONGA, data); data &= ~EN_PROM_CLK ; pci_conf_write(id, EN_TONGA, data); /* send address with serial line */ address = ((i + EN_ESI) << 1) + 1; for ( j = 7 ; j >= 0 ; j --){ data = (address >> j) & 1 ? data | EN_PROM_DATA : data & ~EN_PROM_DATA; pci_conf_write(id, EN_TONGA, data); data |= EN_PROM_CLK ; pci_conf_write(id, EN_TONGA, data); data &= ~EN_PROM_CLK ; pci_conf_write(id, EN_TONGA, data); } /* get ack */ data |= EN_PROM_DATA ; pci_conf_write(id, EN_TONGA, data); data |= EN_PROM_CLK ; pci_conf_write(id, EN_TONGA, data); data = pci_conf_read(id, EN_TONGA); status = data & EN_PROM_DATA; data &= ~EN_PROM_CLK ; pci_conf_write(id, EN_TONGA, data); data |= EN_PROM_DATA ; pci_conf_write(id, EN_TONGA, data); tmp = 0; for ( j = 7 ; j >= 0 ; j --){ tmp <<= 1; data |= EN_PROM_DATA ; pci_conf_write(id, EN_TONGA, data); data |= EN_PROM_CLK ; pci_conf_write(id, EN_TONGA, data); data = pci_conf_read(id, EN_TONGA); if(data & EN_PROM_DATA) tmp |= 1; data &= ~EN_PROM_CLK ; pci_conf_write(id, EN_TONGA, data); data |= EN_PROM_DATA ; pci_conf_write(id, EN_TONGA, data); } /* get ack */ data |= EN_PROM_DATA ; pci_conf_write(id, EN_TONGA, data); data |= EN_PROM_CLK ; pci_conf_write(id, EN_TONGA, data); data = pci_conf_read(id, EN_TONGA); status = data & EN_PROM_DATA; data &= ~EN_PROM_CLK ; pci_conf_write(id, EN_TONGA, data); data |= EN_PROM_DATA ; pci_conf_write(id, EN_TONGA, data); sc->macaddr[i] = tmp; } /* stop operation */ data &= ~EN_PROM_DATA; pci_conf_write(id, EN_TONGA, data); data |= EN_PROM_CLK; pci_conf_write(id, EN_TONGA, data); data |= EN_PROM_DATA; pci_conf_write(id, EN_TONGA, data); pci_conf_write(id, EN_TONGA, t_data); } #endif /* !MIDWAY_ADPONLY */