if_ep_isa.c revision 111292
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 111292 2003-02-23 03:39:22Z marcel $ 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 4952549Smdodd#include <isa/isavar.h> 5051673Smdodd 5151673Smdodd#include <dev/ep/if_epreg.h> 5251673Smdodd#include <dev/ep/if_epvar.h> 53110835Smdodd 54110835Smdodd#ifdef __i386__ 5551673Smdodd#include <i386/isa/elink.h> 56110835Smdodd#endif 5751673Smdodd 58111292Smarcel#ifdef __i386__ 5954200Smdoddstatic u_int16_t get_eeprom_data (int, int); 6054200Smdoddstatic void ep_isa_identify (driver_t *, device_t); 61110835Smdodd#endif 6254200Smdoddstatic int ep_isa_probe (device_t); 6354200Smdoddstatic int ep_isa_attach (device_t); 6451673Smdodd 6552549Smdoddstruct isa_ident { 6652549Smdodd u_int32_t id; 6752549Smdodd char * name; 6851673Smdodd}; 6952549Smdoddconst char * ep_isa_match_id (u_int32_t, struct isa_ident *); 7051673Smdodd 7156428Smdodd#define ISA_ID_3C509_XXX 0x0506d509 7252549Smdodd#define ISA_ID_3C509_TP 0x506d5090 7352549Smdodd#define ISA_ID_3C509_BNC 0x506d5091 7452549Smdodd#define ISA_ID_3C509_COMBO 0x506d5094 7552549Smdodd#define ISA_ID_3C509_TPO 0x506d5095 7656428Smdodd#define ISA_ID_3C509_TPC 0x506d5098 7769788Snyan#ifdef PC98 7869788Snyan#define ISA_ID_3C569B_COMBO 0x506d5694 7969788Snyan#define ISA_ID_3C569B_TPO 0x506d5695 8069788Snyan#endif 8151673Smdodd 82111292Smarcel#ifdef __i386__ 8352549Smdoddstatic struct isa_ident ep_isa_devs[] = { 8454197Smdodd { ISA_ID_3C509_TP, "3Com 3C509-TP EtherLink III" }, 8554197Smdodd { ISA_ID_3C509_BNC, "3Com 3C509-BNC EtherLink III" }, 8654197Smdodd { ISA_ID_3C509_COMBO, "3Com 3C509-Combo EtherLink III" }, 8754197Smdodd { ISA_ID_3C509_TPO, "3Com 3C509-TPO EtherLink III" }, 8856428Smdodd { ISA_ID_3C509_TPC, "3Com 3C509-TPC EtherLink III" }, 8969788Snyan#ifdef PC98 9069788Snyan { ISA_ID_3C569B_COMBO, "3Com 3C569B-J-Combo EtherLink III" }, 9169788Snyan { ISA_ID_3C569B_TPO, "3Com 3C569B-J-TPO EtherLink III" }, 9269788Snyan#endif 9352549Smdodd { 0, NULL }, 9452549Smdodd}; 95111292Smarcel#endif 9651673Smdodd 9752549Smdoddstatic struct isa_pnp_id ep_ids[] = { 9854197Smdodd { 0x90506d50, "3Com 3C509B-TP EtherLink III (PnP)" }, /* TCM5090 */ 9954197Smdodd { 0x91506d50, "3Com 3C509B-BNC EtherLink III (PnP)" },/* TCM5091 */ 10054197Smdodd { 0x94506d50, "3Com 3C509B-Combo EtherLink III (PnP)" },/* TCM5094 */ 10154197Smdodd { 0x95506d50, "3Com 3C509B-TPO EtherLink III (PnP)" },/* TCM5095 */ 10256428Smdodd { 0x98506d50, "3Com 3C509B-TPC EtherLink III (PnP)" },/* TCM5098 */ 10354197Smdodd { 0xf780d041, NULL }, /* PNP80f7 */ 10454197Smdodd { 0, NULL }, 10552549Smdodd}; 10651673Smdodd 10752549Smdodd/* 10852549Smdodd * We get eeprom data from the id_port given an offset into the eeprom. 10952549Smdodd * Basically; after the ID_sequence is sent to all of the cards; they enter 11052549Smdodd * the ID_CMD state where they will accept command requests. 0x80-0xbf loads 11152549Smdodd * the eeprom data. We then read the port 16 times and with every read; the 11252549Smdodd * cards check for contention (ie: if one card writes a 0 bit and another 11352549Smdodd * writes a 1 bit then the host sees a 0. At the end of the cycle; each card 11452549Smdodd * compares the data on the bus; if there is a difference then that card goes 11552549Smdodd * into ID_WAIT state again). In the meantime; one bit of data is returned in 11652549Smdodd * the AX register which is conveniently returned to us by inb(). Hence; we 11752549Smdodd * read 16 times getting one bit of data with each read. 11852549Smdodd */ 119111292Smarcel#ifdef __i386__ 12054198Smdoddstatic u_int16_t 12152549Smdoddget_eeprom_data(id_port, offset) 12254198Smdodd int id_port; 12354198Smdodd int offset; 12452549Smdodd{ 12554198Smdodd int i; 12654198Smdodd u_int16_t data = 0; 12754198Smdodd 12854198Smdodd outb(id_port, EEPROM_CMD_RD|offset); 12952549Smdodd DELAY(BIT_DELAY_MULTIPLE * 1000); 13054198Smdodd for (i = 0; i < 16; i++) { 13154198Smdodd DELAY(50); 13254198Smdodd data = (data << 1) | (inw(id_port) & 1); 13354198Smdodd } 13454198Smdodd return (data); 13552549Smdodd} 136111292Smarcel#endif 13751673Smdodd 13852549Smdoddconst char * 13952549Smdoddep_isa_match_id (id, isa_devs) 14052549Smdodd u_int32_t id; 14152549Smdodd struct isa_ident * isa_devs; 14252549Smdodd{ 14352549Smdodd struct isa_ident * i = isa_devs; 14452549Smdodd while(i->name != NULL) { 14552549Smdodd if (id == i->id) 14652549Smdodd return (i->name); 14752549Smdodd i++; 14852549Smdodd } 14956428Smdodd /* 15056428Smdodd * If we see a card that is likely to be a 3c509 15156428Smdodd * return something so that it will work; be annoying 15256428Smdodd * so that the user will tell us about it though. 15356428Smdodd */ 15456429Smdodd if ((id >> 4) == ISA_ID_3C509_XXX) { 15556428Smdodd return ("Unknown 3c509; notify maintainer!"); 15656428Smdodd } 15752549Smdodd return (NULL); 15852549Smdodd} 15951673Smdodd 160110835Smdodd#ifdef __i386__ 16152549Smdoddstatic void 16252549Smdoddep_isa_identify (driver_t *driver, device_t parent) 16352549Smdodd{ 16452549Smdodd int tag = EP_LAST_TAG; 16552549Smdodd int found = 0; 16652549Smdodd int i; 16752549Smdodd int j; 16852549Smdodd const char * desc; 16954196Smdodd u_int16_t data; 17052549Smdodd u_int32_t irq; 17152549Smdodd u_int32_t ioport; 17252549Smdodd u_int32_t isa_id; 17352549Smdodd device_t child; 17451673Smdodd 17552549Smdodd outb(ELINK_ID_PORT, 0); 17652549Smdodd outb(ELINK_ID_PORT, 0); 17752549Smdodd elink_idseq(ELINK_509_POLY); 17852549Smdodd elink_reset(); 17951673Smdodd 18052549Smdodd DELAY(DELAY_MULTIPLE * 10000); 18151673Smdodd 18252549Smdodd for (i = 0; i < EP_MAX_BOARDS; i++) { 18351673Smdodd 18452549Smdodd outb(ELINK_ID_PORT, 0); 18552549Smdodd outb(ELINK_ID_PORT, 0); 18654196Smdodd elink_idseq(ELINK_509_POLY); 18754196Smdodd DELAY(400); 18851673Smdodd 18952549Smdodd /* For the first probe, clear all 19052549Smdodd * board's tag registers. 19152549Smdodd * Otherwise kill off already-found 19252549Smdodd * boards. -- linux 3c509.c 19352549Smdodd */ 19452549Smdodd if (i == 0) { 19552549Smdodd outb(ELINK_ID_PORT, 0xd0); 19652549Smdodd } else { 19752549Smdodd outb(ELINK_ID_PORT, 0xd8); 19852549Smdodd } 19951673Smdodd 20054196Smdodd /* Get out of loop if we're out of cards. */ 20154196Smdodd data = get_eeprom_data(ELINK_ID_PORT, EEPROM_MFG_ID); 20254196Smdodd if (data != MFG_ID) { 20354196Smdodd break; 20454196Smdodd } 20554196Smdodd 20654196Smdodd /* resolve contention using the Ethernet address */ 20754196Smdodd for (j = 0; j < 3; j++) { 20854196Smdodd (void)get_eeprom_data(ELINK_ID_PORT, j); 20954196Smdodd } 21054196Smdodd 21152549Smdodd /* 21252549Smdodd * Construct an 'isa_id' in 'EISA' 21352549Smdodd * format. 21452549Smdodd */ 21552549Smdodd data = get_eeprom_data(ELINK_ID_PORT, EEPROM_MFG_ID); 21652549Smdodd isa_id = (htons(data) << 16); 21752549Smdodd data = get_eeprom_data(ELINK_ID_PORT, EEPROM_PROD_ID); 21852549Smdodd isa_id |= htons(data); 21951673Smdodd 22052549Smdodd /* Find known ISA boards */ 22152549Smdodd desc = ep_isa_match_id(isa_id, ep_isa_devs); 22252549Smdodd if (!desc) { 22352549Smdodd if (bootverbose) { 22452549Smdodd device_printf(parent, "if_ep: unknown ID 0x%08x\n", 22552549Smdodd isa_id); 22652549Smdodd } 22756429Smdodd continue; 22852549Smdodd } 22951673Smdodd 23052549Smdodd /* Retreive IRQ */ 23152549Smdodd data = get_eeprom_data(ELINK_ID_PORT, EEPROM_RESOURCE_CFG); 23252549Smdodd irq = (data >> 12); 23351673Smdodd 23452549Smdodd /* Retreive IOPORT */ 23552549Smdodd data = get_eeprom_data(ELINK_ID_PORT, EEPROM_ADDR_CFG); 23652549Smdodd#ifdef PC98 23763379Smdodd ioport = (((data & ADDR_CFG_MASK) * 0x100) + 0x40d0); 23852549Smdodd#else 23963379Smdodd ioport = (((data & ADDR_CFG_MASK) << 4) + 0x200); 24052549Smdodd#endif 24151673Smdodd 24263379Smdodd if ((data & ADDR_CFG_MASK) == ADDR_CFG_EISA) { 24363379Smdodd device_printf(parent, "if_ep: <%s> at port 0x%03x in EISA mode!\n", 24463379Smdodd desc, ioport); 24563379Smdodd /* Set the adaptor tag so that the next card can be found. */ 24663379Smdodd outb(ELINK_ID_PORT, tag--); 24763379Smdodd continue; 24863379Smdodd } 24963379Smdodd 25054196Smdodd /* Test for an adapter with PnP support. */ 25154196Smdodd data = get_eeprom_data(ELINK_ID_PORT, EEPROM_CAP); 25254196Smdodd if (data == CAP_ISA) { 25354196Smdodd data = get_eeprom_data(ELINK_ID_PORT, EEPROM_INT_CONFIG_1); 25454196Smdodd if (data & ICW1_IAS_PNP) { 25554196Smdodd if (bootverbose) { 25656429Smdodd device_printf(parent, "if_ep: <%s> at 0x%03x in PnP mode!\n", 25756429Smdodd desc, ioport); 25854196Smdodd } 25954196Smdodd /* Set the adaptor tag so that the next card can be found. */ 26054196Smdodd outb(ELINK_ID_PORT, tag--); 26154196Smdodd continue; 26254196Smdodd } 26354196Smdodd } 26454196Smdodd 26552549Smdodd /* Set the adaptor tag so that the next card can be found. */ 26652549Smdodd outb(ELINK_ID_PORT, tag--); 26751673Smdodd 26852549Smdodd /* Activate the adaptor at the EEPROM location. */ 26954196Smdodd outb(ELINK_ID_PORT, ACTIVATE_ADAPTER_TO_CONFIG); 27051673Smdodd 27154196Smdodd /* Test for an adapter in TEST mode. */ 27254196Smdodd outw(ioport + EP_COMMAND, WINDOW_SELECT | 0); 27352549Smdodd data = inw(ioport + EP_W0_EEPROM_COMMAND); 27452549Smdodd if (data & EEPROM_TST_MODE) { 27556429Smdodd device_printf(parent, "if_ep: <%s> at port 0x%03x in TEST mode! Erase pencil mark.\n", 27656429Smdodd desc, ioport); 27752549Smdodd continue; 27852549Smdodd } 27951673Smdodd 28052549Smdodd child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "ep", -1); 28152549Smdodd device_set_desc_copy(child, desc); 28252549Smdodd device_set_driver(child, driver); 28352549Smdodd bus_set_resource(child, SYS_RES_IRQ, 0, irq, 1); 28452549Smdodd bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, EP_IOSIZE); 28551673Smdodd 28652549Smdodd if (bootverbose) { 28752549Smdodd device_printf(parent, "if_ep: <%s> at port 0x%03x-0x%03x irq %d\n", 28852549Smdodd desc, ioport, ioport + EP_IOSIZE, irq); 28952549Smdodd } 29051673Smdodd 29152549Smdodd found++; 29252549Smdodd } 29351673Smdodd 29452549Smdodd return; 29552549Smdodd} 296110835Smdodd#endif 29751673Smdodd 29852549Smdoddstatic int 29952549Smdoddep_isa_probe (device_t dev) 30052549Smdodd{ 30152549Smdodd int error = 0; 30251673Smdodd 30352549Smdodd /* Check isapnp ids */ 30452549Smdodd error = ISA_PNP_PROBE(device_get_parent(dev), dev, ep_ids); 30551673Smdodd 30652549Smdodd /* If the card had a PnP ID that didn't match any we know about */ 30752549Smdodd if (error == ENXIO) { 30852549Smdodd return (error); 30952549Smdodd } 31051673Smdodd 31152549Smdodd /* If we had some other problem. */ 31252549Smdodd if (!(error == 0 || error == ENOENT)) { 31352549Smdodd return (error); 31452549Smdodd } 31551673Smdodd 31652549Smdodd /* If we have the resources we need then we're good to go. */ 31752549Smdodd if ((bus_get_resource_start(dev, SYS_RES_IOPORT, 0) != 0) && 31852549Smdodd (bus_get_resource_start(dev, SYS_RES_IRQ, 0) != 0)) { 31952549Smdodd return (0); 32052549Smdodd } 32151673Smdodd 32252549Smdodd return (ENXIO); 32352549Smdodd} 32451673Smdodd 32552549Smdoddstatic int 32652549Smdoddep_isa_attach (device_t dev) 32752549Smdodd{ 32852549Smdodd struct ep_softc * sc = device_get_softc(dev); 32952549Smdodd int error = 0; 33051673Smdodd 33152549Smdodd if ((error = ep_alloc(dev))) { 33252549Smdodd device_printf(dev, "ep_alloc() failed! (%d)\n", error); 33352549Smdodd goto bad; 33452549Smdodd } 33551673Smdodd 33652549Smdodd ep_get_media(sc); 33751673Smdodd 33852549Smdodd GO_WINDOW(0); 33952549Smdodd SET_IRQ(BASE, rman_get_start(sc->irq)); 34051673Smdodd 34152549Smdodd if ((error = ep_attach(sc))) { 34252549Smdodd device_printf(dev, "ep_attach() failed! (%d)\n", error); 34352549Smdodd goto bad; 34452549Smdodd } 34551673Smdodd 34652549Smdodd if ((error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET, ep_intr, 34752549Smdodd sc, &sc->ep_intrhand))) { 34852549Smdodd device_printf(dev, "bus_setup_intr() failed! (%d)\n", error); 34952549Smdodd goto bad; 35052549Smdodd } 35151673Smdodd 35252549Smdodd return (0); 35352549Smdoddbad: 35452549Smdodd ep_free(dev); 35552549Smdodd return (error); 35651673Smdodd} 35751673Smdodd 35852549Smdoddstatic device_method_t ep_isa_methods[] = { 35952549Smdodd /* Device interface */ 360110835Smdodd#ifdef __i386__ 36152549Smdodd DEVMETHOD(device_identify, ep_isa_identify), 362110835Smdodd#endif 36352549Smdodd DEVMETHOD(device_probe, ep_isa_probe), 36452549Smdodd DEVMETHOD(device_attach, ep_isa_attach), 36551673Smdodd 36652549Smdodd { 0, 0 } 36752549Smdodd}; 36851673Smdodd 36952549Smdoddstatic driver_t ep_isa_driver = { 37052549Smdodd "ep", 37152549Smdodd ep_isa_methods, 37252549Smdodd sizeof(struct ep_softc), 37352549Smdodd}; 37451673Smdodd 37552549Smdoddextern devclass_t ep_devclass; 37651673Smdodd 37752549SmdoddDRIVER_MODULE(ep, isa, ep_isa_driver, ep_devclass, 0, 0); 378