/* * Copyright (c) 1994 Herb Peyerl * 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 Herb Peyerl. * 4. The name of Herb Peyerl 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/dev/ep/if_ep_isa.c,v 1.8.2.1 2000/12/16 03:47:57 nyan Exp $ * $DragonFly: src/sys/dev/netif/ep/if_ep_isa.c,v 1.13 2006/10/25 20:55:56 dillon Exp $ */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include "if_epreg.h" #include "if_epvar.h" #include "../elink_layer/elink.h" static u_int16_t get_eeprom_data (int, int); static int ep_isa_identify (driver_t *, device_t); static int ep_isa_probe (device_t); static int ep_isa_attach (device_t); struct isa_ident { u_int32_t id; char * name; }; const char * ep_isa_match_id (u_int32_t, struct isa_ident *); #define ISA_ID_3C509_XXX 0x0506d509 #define ISA_ID_3C509_TP 0x506d5090 #define ISA_ID_3C509_BNC 0x506d5091 #define ISA_ID_3C509_COMBO 0x506d5094 #define ISA_ID_3C509_TPO 0x506d5095 #define ISA_ID_3C509_TPC 0x506d5098 static struct isa_ident ep_isa_devs[] = { { ISA_ID_3C509_TP, "3Com 3C509-TP EtherLink III" }, { ISA_ID_3C509_BNC, "3Com 3C509-BNC EtherLink III" }, { ISA_ID_3C509_COMBO, "3Com 3C509-Combo EtherLink III" }, { ISA_ID_3C509_TPO, "3Com 3C509-TPO EtherLink III" }, { ISA_ID_3C509_TPC, "3Com 3C509-TPC EtherLink III" }, { 0, NULL }, }; static struct isa_pnp_id ep_ids[] = { { 0x90506d50, "3Com 3C509B-TP EtherLink III (PnP)" }, /* TCM5090 */ { 0x91506d50, "3Com 3C509B-BNC EtherLink III (PnP)" },/* TCM5091 */ { 0x94506d50, "3Com 3C509B-Combo EtherLink III (PnP)" },/* TCM5094 */ { 0x95506d50, "3Com 3C509B-TPO EtherLink III (PnP)" },/* TCM5095 */ { 0x98506d50, "3Com 3C509B-TPC EtherLink III (PnP)" },/* TCM5098 */ { 0xf780d041, NULL }, /* PNP80f7 */ { 0, NULL }, }; /* * We get eeprom data from the id_port given an offset into the eeprom. * Basically; after the ID_sequence is sent to all of the cards; they enter * the ID_CMD state where they will accept command requests. 0x80-0xbf loads * the eeprom data. We then read the port 16 times and with every read; the * cards check for contention (ie: if one card writes a 0 bit and another * writes a 1 bit then the host sees a 0. At the end of the cycle; each card * compares the data on the bus; if there is a difference then that card goes * into ID_WAIT state again). In the meantime; one bit of data is returned in * the AX register which is conveniently returned to us by inb(). Hence; we * read 16 times getting one bit of data with each read. */ static u_int16_t get_eeprom_data(int id_port, int offset) { int i; u_int16_t data = 0; outb(id_port, EEPROM_CMD_RD|offset); DELAY(BIT_DELAY_MULTIPLE * 1000); for (i = 0; i < 16; i++) { DELAY(50); data = (data << 1) | (inw(id_port) & 1); } return (data); } const char * ep_isa_match_id(u_int32_t id, struct isa_ident *isa_devs) { struct isa_ident * i = isa_devs; while(i->name != NULL) { if (id == i->id) return (i->name); i++; } /* * If we see a card that is likely to be a 3c509 * return something so that it will work; be annoying * so that the user will tell us about it though. */ if ((id >> 4) == ISA_ID_3C509_XXX) { return ("Unknown 3c509; notify maintainer!"); } return (NULL); } static int ep_isa_identify(driver_t *driver, device_t parent) { int tag = EP_LAST_TAG; int found = 0; int i; int j; const char * desc; u_int16_t data; u_int32_t irq; u_int32_t ioport; u_int32_t isa_id; device_t child; /* * Rescans not currently supported. */ if (device_get_state(parent) == DS_ATTACHED) return (0); /* * Check for the existance of the EISA bus. */ outb(ELINK_ID_PORT, 0); outb(ELINK_ID_PORT, 0); elink_idseq(ELINK_509_POLY); elink_reset(); DELAY(DELAY_MULTIPLE * 10000); for (i = 0; i < EP_MAX_BOARDS; i++) { outb(ELINK_ID_PORT, 0); outb(ELINK_ID_PORT, 0); elink_idseq(ELINK_509_POLY); DELAY(400); /* For the first probe, clear all * board's tag registers. * Otherwise kill off already-found * boards. -- linux 3c509.c */ if (i == 0) { outb(ELINK_ID_PORT, 0xd0); } else { outb(ELINK_ID_PORT, 0xd8); } /* Get out of loop if we're out of cards. */ data = get_eeprom_data(ELINK_ID_PORT, EEPROM_MFG_ID); if (data != MFG_ID) { break; } /* resolve contention using the Ethernet address */ for (j = 0; j < 3; j++) { get_eeprom_data(ELINK_ID_PORT, j); } /* * Construct an 'isa_id' in 'EISA' * format. */ data = get_eeprom_data(ELINK_ID_PORT, EEPROM_MFG_ID); isa_id = (htons(data) << 16); data = get_eeprom_data(ELINK_ID_PORT, EEPROM_PROD_ID); isa_id |= htons(data); /* Find known ISA boards */ desc = ep_isa_match_id(isa_id, ep_isa_devs); if (!desc) { if (bootverbose) { device_printf(parent, "if_ep: unknown ID 0x%08x\n", isa_id); } continue; } /* Retreive IRQ */ data = get_eeprom_data(ELINK_ID_PORT, EEPROM_RESOURCE_CFG); irq = (data >> 12); /* Retreive IOPORT */ data = get_eeprom_data(ELINK_ID_PORT, EEPROM_ADDR_CFG); ioport = (((data & 0x1f) << 4) + 0x200); /* Test for an adapter with PnP support. */ data = get_eeprom_data(ELINK_ID_PORT, EEPROM_CAP); if (data == CAP_ISA) { data = get_eeprom_data(ELINK_ID_PORT, EEPROM_INT_CONFIG_1); if (data & ICW1_IAS_PNP) { if (bootverbose) { device_printf(parent, "if_ep: <%s> at 0x%03x in PnP mode!\n", desc, ioport); } /* Set the adaptor tag so that the next card can be found. */ outb(ELINK_ID_PORT, tag--); continue; } } /* Set the adaptor tag so that the next card can be found. */ outb(ELINK_ID_PORT, tag--); /* Activate the adaptor at the EEPROM location. */ outb(ELINK_ID_PORT, ACTIVATE_ADAPTER_TO_CONFIG); /* Test for an adapter in TEST mode. */ outw(ioport + EP_COMMAND, WINDOW_SELECT | 0); data = inw(ioport + EP_W0_EEPROM_COMMAND); if (data & EEPROM_TST_MODE) { device_printf(parent, "if_ep: <%s> at port 0x%03x in TEST mode! Erase pencil mark.\n", desc, ioport); continue; } child = BUS_ADD_CHILD(parent, parent, ISA_ORDER_SPECULATIVE, "ep", -1); device_set_desc_copy(child, desc); device_set_driver(child, driver); bus_set_resource(child, SYS_RES_IRQ, 0, irq, 1); bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, EP_IOSIZE); if (bootverbose) { device_printf(parent, "if_ep: <%s> at port 0x%03x-0x%03x irq %d\n", desc, ioport, ioport + EP_IOSIZE, irq); } found++; } return (found ? 0 : ENXIO); } static int ep_isa_probe(device_t dev) { int error = 0; /* Check isapnp ids */ error = ISA_PNP_PROBE(device_get_parent(dev), dev, ep_ids); /* If the card had a PnP ID that didn't match any we know about */ if (error == ENXIO) { return (error); } /* If we had some other problem. */ if (!(error == 0 || error == ENOENT)) { return (error); } /* If we have the resources we need then we're good to go. */ if ((bus_get_resource_start(dev, SYS_RES_IOPORT, 0) != 0) && (bus_get_resource_start(dev, SYS_RES_IRQ, 0) != 0)) { return (0); } return (ENXIO); } static int ep_isa_attach(device_t dev) { struct ep_softc * sc = device_get_softc(dev); int error = 0; if ((error = ep_alloc(dev))) { device_printf(dev, "ep_alloc() failed! (%d)\n", error); goto bad; } ep_get_media(sc); GO_WINDOW(0); SET_IRQ(BASE, rman_get_start(sc->irq)); if ((error = ep_attach(sc))) { device_printf(dev, "ep_attach() failed! (%d)\n", error); goto bad; } error = bus_setup_intr(dev, sc->irq, INTR_NETSAFE, ep_intr, sc, &sc->ep_intrhand, sc->arpcom.ac_if.if_serializer); if (error) { device_printf(dev, "bus_setup_intr() failed! (%d)\n", error); goto bad; } return (0); bad: ep_free(dev); return (error); } static device_method_t ep_isa_methods[] = { /* Device interface */ DEVMETHOD(device_identify, ep_isa_identify), DEVMETHOD(device_probe, ep_isa_probe), DEVMETHOD(device_attach, ep_isa_attach), { 0, 0 } }; static driver_t ep_isa_driver = { "ep", ep_isa_methods, sizeof(struct ep_softc), }; extern devclass_t ep_devclass; DRIVER_MODULE(if_ep, isa, ep_isa_driver, ep_devclass, 0, 0);