if_ep_isa.c revision 54197
151673Smdodd/* 251673Smdodd * Copyright (c) 1994 Herb Peyerl <hpeyerl@novatel.ca> 351673Smdodd * All rights reserved. 451673Smdodd * 551673Smdodd * Redistribution and use in source and binary forms, with or without 651673Smdodd * modification, are permitted provided that the following conditions 751673Smdodd * are met: 851673Smdodd * 1. Redistributions of source code must retain the above copyright 951673Smdodd * notice, this list of conditions and the following disclaimer. 1051673Smdodd * 2. Redistributions in binary form must reproduce the above copyright 1151673Smdodd * notice, this list of conditions and the following disclaimer in the 1251673Smdodd * documentation and/or other materials provided with the distribution. 1351673Smdodd * 3. All advertising materials mentioning features or use of this software 1451673Smdodd * must display the following acknowledgement: 1551673Smdodd * This product includes software developed by Herb Peyerl. 1651673Smdodd * 4. The name of Herb Peyerl may not be used to endorse or promote products 1751673Smdodd * derived from this software without specific prior written permission. 1851673Smdodd * 1951673Smdodd * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 2051673Smdodd * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 2151673Smdodd * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 2251673Smdodd * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 2351673Smdodd * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2451673Smdodd * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2551673Smdodd * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2651673Smdodd * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2751673Smdodd * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2851673Smdodd * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2951673Smdodd * 3051673Smdodd * $FreeBSD: head/sys/dev/ep/if_ep_isa.c 54197 1999-12-06 08:40:59Z mdodd $ 3151673Smdodd */ 3251673Smdodd 3351673Smdodd#include <sys/param.h> 3452549Smdodd#include <sys/systm.h> 3551673Smdodd#include <sys/kernel.h> 3651673Smdodd#include <sys/socket.h> 3751673Smdodd 3852549Smdodd#include <sys/module.h> 3952549Smdodd#include <sys/bus.h> 4052549Smdodd 4152549Smdodd#include <machine/bus.h> 4252549Smdodd#include <machine/resource.h> 4352549Smdodd#include <sys/rman.h> 4452549Smdodd 4551673Smdodd#include <net/if.h> 4652549Smdodd#include <net/if_arp.h> 4752549Smdodd#include <net/if_media.h> 4851673Smdodd 4951673Smdodd#include <machine/clock.h> 5051673Smdodd 5152549Smdodd#include <isa/isavar.h> 5252549Smdodd#include <isa/pnpvar.h> 5351673Smdodd 5451673Smdodd#include <dev/ep/if_epreg.h> 5551673Smdodd#include <dev/ep/if_epvar.h> 5651673Smdodd#include <i386/isa/elink.h> 5751673Smdodd 5852549Smdoddstatic int get_eeprom_data (int, int); 5951673Smdodd 6052549Smdoddstatic void ep_isa_identify (driver_t *, device_t); 6152549Smdoddstatic int ep_isa_probe (device_t); 6252549Smdoddstatic int ep_isa_attach (device_t); 6351673Smdodd 6452549Smdoddstruct isa_ident { 6552549Smdodd u_int32_t id; 6652549Smdodd char * name; 6751673Smdodd}; 6852549Smdoddconst char * ep_isa_match_id (u_int32_t, struct isa_ident *); 6951673Smdodd 7052549Smdodd#define ISA_ID_3C509_TP 0x506d5090 7152549Smdodd#define ISA_ID_3C509_BNC 0x506d5091 7252549Smdodd#define ISA_ID_3C509_COMBO 0x506d5094 7352549Smdodd#define ISA_ID_3C509_TPO 0x506d5095 7451673Smdodd 7552549Smdoddstatic struct isa_ident ep_isa_devs[] = { 7654197Smdodd { ISA_ID_3C509_TP, "3Com 3C509-TP EtherLink III" }, 7754197Smdodd { ISA_ID_3C509_BNC, "3Com 3C509-BNC EtherLink III" }, 7854197Smdodd { ISA_ID_3C509_COMBO, "3Com 3C509-Combo EtherLink III" }, 7954197Smdodd { ISA_ID_3C509_TPO, "3Com 3C509-TPO EtherLink III" }, 8052549Smdodd { 0, NULL }, 8152549Smdodd}; 8251673Smdodd 8352549Smdoddstatic struct isa_pnp_id ep_ids[] = { 8454197Smdodd { 0x90506d50, "3Com 3C509B-TP EtherLink III (PnP)" }, /* TCM5090 */ 8554197Smdodd { 0x91506d50, "3Com 3C509B-BNC EtherLink III (PnP)" },/* TCM5091 */ 8654197Smdodd { 0x94506d50, "3Com 3C509B-Combo EtherLink III (PnP)" },/* TCM5094 */ 8754197Smdodd { 0x95506d50, "3Com 3C509B-TPO EtherLink III (PnP)" },/* TCM5095 */ 8854197Smdodd { 0xf780d041, NULL }, /* PNP80f7 */ 8954197Smdodd { 0, NULL }, 9052549Smdodd}; 9151673Smdodd 9252549Smdodd/* 9352549Smdodd * We get eeprom data from the id_port given an offset into the eeprom. 9452549Smdodd * Basically; after the ID_sequence is sent to all of the cards; they enter 9552549Smdodd * the ID_CMD state where they will accept command requests. 0x80-0xbf loads 9652549Smdodd * the eeprom data. We then read the port 16 times and with every read; the 9752549Smdodd * cards check for contention (ie: if one card writes a 0 bit and another 9852549Smdodd * writes a 1 bit then the host sees a 0. At the end of the cycle; each card 9952549Smdodd * compares the data on the bus; if there is a difference then that card goes 10052549Smdodd * into ID_WAIT state again). In the meantime; one bit of data is returned in 10152549Smdodd * the AX register which is conveniently returned to us by inb(). Hence; we 10252549Smdodd * read 16 times getting one bit of data with each read. 10352549Smdodd */ 10451673Smdodd 10552549Smdoddstatic int 10652549Smdoddget_eeprom_data(id_port, offset) 10752549Smdodd int id_port; 10852549Smdodd int offset; 10952549Smdodd{ 11052549Smdodd int i, data = 0; 11152549Smdodd outb(id_port, 0x80 + offset); 11252549Smdodd for (i = 0; i < 16; i++) { 11352549Smdodd DELAY(BIT_DELAY_MULTIPLE * 1000); 11452549Smdodd data = (data << 1) | (inw(id_port) & 1); 11551673Smdodd } 11652549Smdodd return (data); 11752549Smdodd} 11851673Smdodd 11952549Smdoddconst char * 12052549Smdoddep_isa_match_id (id, isa_devs) 12152549Smdodd u_int32_t id; 12252549Smdodd struct isa_ident * isa_devs; 12352549Smdodd{ 12452549Smdodd struct isa_ident * i = isa_devs; 12552549Smdodd while(i->name != NULL) { 12652549Smdodd if (id == i->id) 12752549Smdodd return (i->name); 12852549Smdodd i++; 12952549Smdodd } 13052549Smdodd return (NULL); 13152549Smdodd} 13251673Smdodd 13352549Smdoddstatic void 13452549Smdoddep_isa_identify (driver_t *driver, device_t parent) 13552549Smdodd{ 13652549Smdodd int tag = EP_LAST_TAG; 13752549Smdodd int found = 0; 13852549Smdodd int i; 13952549Smdodd int j; 14052549Smdodd const char * desc; 14154196Smdodd u_int16_t data; 14252549Smdodd u_int32_t irq; 14352549Smdodd u_int32_t ioport; 14452549Smdodd u_int32_t isa_id; 14552549Smdodd device_t child; 14651673Smdodd 14752549Smdodd outb(ELINK_ID_PORT, 0); 14852549Smdodd outb(ELINK_ID_PORT, 0); 14952549Smdodd elink_idseq(ELINK_509_POLY); 15052549Smdodd elink_reset(); 15151673Smdodd 15252549Smdodd DELAY(DELAY_MULTIPLE * 10000); 15351673Smdodd 15452549Smdodd for (i = 0; i < EP_MAX_BOARDS; i++) { 15551673Smdodd 15652549Smdodd outb(ELINK_ID_PORT, 0); 15752549Smdodd outb(ELINK_ID_PORT, 0); 15854196Smdodd elink_idseq(ELINK_509_POLY); 15954196Smdodd DELAY(400); 16051673Smdodd 16152549Smdodd /* For the first probe, clear all 16252549Smdodd * board's tag registers. 16352549Smdodd * Otherwise kill off already-found 16452549Smdodd * boards. -- linux 3c509.c 16552549Smdodd */ 16652549Smdodd if (i == 0) { 16752549Smdodd outb(ELINK_ID_PORT, 0xd0); 16852549Smdodd } else { 16952549Smdodd outb(ELINK_ID_PORT, 0xd8); 17052549Smdodd } 17151673Smdodd 17254196Smdodd /* Get out of loop if we're out of cards. */ 17354196Smdodd data = get_eeprom_data(ELINK_ID_PORT, EEPROM_MFG_ID); 17454196Smdodd if (data != MFG_ID) { 17554196Smdodd break; 17654196Smdodd } 17754196Smdodd 17854196Smdodd /* resolve contention using the Ethernet address */ 17954196Smdodd for (j = 0; j < 3; j++) { 18054196Smdodd (void)get_eeprom_data(ELINK_ID_PORT, j); 18154196Smdodd } 18254196Smdodd 18352549Smdodd /* 18452549Smdodd * Construct an 'isa_id' in 'EISA' 18552549Smdodd * format. 18652549Smdodd */ 18752549Smdodd data = get_eeprom_data(ELINK_ID_PORT, EEPROM_MFG_ID); 18852549Smdodd isa_id = (htons(data) << 16); 18952549Smdodd data = get_eeprom_data(ELINK_ID_PORT, EEPROM_PROD_ID); 19052549Smdodd isa_id |= htons(data); 19151673Smdodd 19252549Smdodd /* Find known ISA boards */ 19352549Smdodd desc = ep_isa_match_id(isa_id, ep_isa_devs); 19452549Smdodd if (!desc) { 19552549Smdodd if (bootverbose) { 19652549Smdodd device_printf(parent, "if_ep: unknown ID 0x%08x\n", 19752549Smdodd isa_id); 19852549Smdodd } 19952549Smdodd break; 20052549Smdodd } 20151673Smdodd 20252549Smdodd /* Retreive IRQ */ 20352549Smdodd data = get_eeprom_data(ELINK_ID_PORT, EEPROM_RESOURCE_CFG); 20452549Smdodd irq = (data >> 12); 20551673Smdodd 20652549Smdodd /* Retreive IOPORT */ 20752549Smdodd data = get_eeprom_data(ELINK_ID_PORT, EEPROM_ADDR_CFG); 20852549Smdodd#ifdef PC98 20954196Smdodd ioport = (((data & 0x1f) * 0x100) + 0x40d0); 21052549Smdodd#else 21154196Smdodd ioport = (((data & 0x1f) << 4) + 0x200); 21252549Smdodd#endif 21351673Smdodd 21454196Smdodd /* Test for an adapter with PnP support. */ 21554196Smdodd data = get_eeprom_data(ELINK_ID_PORT, EEPROM_CAP); 21654196Smdodd if (data == CAP_ISA) { 21754196Smdodd data = get_eeprom_data(ELINK_ID_PORT, EEPROM_INT_CONFIG_1); 21854196Smdodd if (data & ICW1_IAS_PNP) { 21954196Smdodd if (bootverbose) { 22054196Smdodd device_printf(parent, "if_ep: Adapter at 0x%03x in PnP mode!\n", 22154196Smdodd ioport); 22254196Smdodd } 22354196Smdodd /* Set the adaptor tag so that the next card can be found. */ 22454196Smdodd outb(ELINK_ID_PORT, tag--); 22554196Smdodd continue; 22654196Smdodd } 22754196Smdodd } 22854196Smdodd 22952549Smdodd /* Set the adaptor tag so that the next card can be found. */ 23052549Smdodd outb(ELINK_ID_PORT, tag--); 23151673Smdodd 23252549Smdodd /* Activate the adaptor at the EEPROM location. */ 23354196Smdodd outb(ELINK_ID_PORT, ACTIVATE_ADAPTER_TO_CONFIG); 23451673Smdodd 23554196Smdodd /* Test for an adapter in TEST mode. */ 23654196Smdodd outw(ioport + EP_COMMAND, WINDOW_SELECT | 0); 23752549Smdodd data = inw(ioport + EP_W0_EEPROM_COMMAND); 23852549Smdodd if (data & EEPROM_TST_MODE) { 23954196Smdodd device_printf(parent, "if_ep: Adapter at 0x%03x in TEST mode! Erase pencil mark.\n", 24054196Smdodd ioport); 24152549Smdodd continue; 24252549Smdodd } 24351673Smdodd 24452549Smdodd child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "ep", -1); 24552549Smdodd device_set_desc_copy(child, desc); 24652549Smdodd device_set_driver(child, driver); 24752549Smdodd bus_set_resource(child, SYS_RES_IRQ, 0, irq, 1); 24852549Smdodd bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, EP_IOSIZE); 24951673Smdodd 25052549Smdodd if (bootverbose) { 25152549Smdodd device_printf(parent, "if_ep: <%s> at port 0x%03x-0x%03x irq %d\n", 25252549Smdodd desc, ioport, ioport + EP_IOSIZE, irq); 25352549Smdodd } 25451673Smdodd 25552549Smdodd found++; 25652549Smdodd } 25751673Smdodd 25852549Smdodd return; 25952549Smdodd} 26051673Smdodd 26152549Smdoddstatic int 26252549Smdoddep_isa_probe (device_t dev) 26352549Smdodd{ 26452549Smdodd int error = 0; 26551673Smdodd 26652549Smdodd /* Check isapnp ids */ 26752549Smdodd error = ISA_PNP_PROBE(device_get_parent(dev), dev, ep_ids); 26851673Smdodd 26952549Smdodd /* If the card had a PnP ID that didn't match any we know about */ 27052549Smdodd if (error == ENXIO) { 27152549Smdodd return (error); 27252549Smdodd } 27351673Smdodd 27452549Smdodd /* If we had some other problem. */ 27552549Smdodd if (!(error == 0 || error == ENOENT)) { 27652549Smdodd return (error); 27752549Smdodd } 27851673Smdodd 27952549Smdodd /* If we have the resources we need then we're good to go. */ 28052549Smdodd if ((bus_get_resource_start(dev, SYS_RES_IOPORT, 0) != 0) && 28152549Smdodd (bus_get_resource_start(dev, SYS_RES_IRQ, 0) != 0)) { 28252549Smdodd return (0); 28352549Smdodd } 28451673Smdodd 28552549Smdodd return (ENXIO); 28652549Smdodd} 28751673Smdodd 28852549Smdoddstatic int 28952549Smdoddep_isa_attach (device_t dev) 29052549Smdodd{ 29152549Smdodd struct ep_softc * sc = device_get_softc(dev); 29252549Smdodd int error = 0; 29351673Smdodd 29452549Smdodd if ((error = ep_alloc(dev))) { 29552549Smdodd device_printf(dev, "ep_alloc() failed! (%d)\n", error); 29652549Smdodd goto bad; 29752549Smdodd } 29851673Smdodd 29952549Smdodd ep_get_media(sc); 30051673Smdodd 30152549Smdodd GO_WINDOW(0); 30252549Smdodd SET_IRQ(BASE, rman_get_start(sc->irq)); 30351673Smdodd 30452549Smdodd if ((error = ep_attach(sc))) { 30552549Smdodd device_printf(dev, "ep_attach() failed! (%d)\n", error); 30652549Smdodd goto bad; 30752549Smdodd } 30851673Smdodd 30952549Smdodd if ((error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET, ep_intr, 31052549Smdodd sc, &sc->ep_intrhand))) { 31152549Smdodd device_printf(dev, "bus_setup_intr() failed! (%d)\n", error); 31252549Smdodd goto bad; 31352549Smdodd } 31451673Smdodd 31552549Smdodd return (0); 31652549Smdoddbad: 31752549Smdodd ep_free(dev); 31852549Smdodd return (error); 31951673Smdodd} 32051673Smdodd 32152549Smdoddstatic device_method_t ep_isa_methods[] = { 32252549Smdodd /* Device interface */ 32352549Smdodd DEVMETHOD(device_identify, ep_isa_identify), 32452549Smdodd DEVMETHOD(device_probe, ep_isa_probe), 32552549Smdodd DEVMETHOD(device_attach, ep_isa_attach), 32651673Smdodd 32752549Smdodd { 0, 0 } 32852549Smdodd}; 32951673Smdodd 33052549Smdoddstatic driver_t ep_isa_driver = { 33152549Smdodd "ep", 33252549Smdodd ep_isa_methods, 33352549Smdodd sizeof(struct ep_softc), 33452549Smdodd}; 33551673Smdodd 33652549Smdoddextern devclass_t ep_devclass; 33751673Smdodd 33852549SmdoddDRIVER_MODULE(ep, isa, ep_isa_driver, ep_devclass, 0, 0); 339