if_ep_pccard.c revision 147715
1/*- 2 * Copyright (c) 1994 Herb Peyerl <hpeyerl@novatel.ca> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Herb Peyerl. 16 * 4. The name of Herb Peyerl may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31/* 32 * Pccard support for 3C589 by: 33 * HAMADA Naoki 34 * nao@tom-yam.or.jp 35 */ 36 37#include <sys/cdefs.h> 38__FBSDID("$FreeBSD: head/sys/dev/ep/if_ep_pccard.c 147715 2005-07-01 04:23:32Z imp $"); 39 40#include <sys/param.h> 41#include <sys/systm.h> 42#include <sys/kernel.h> 43#include <sys/socket.h> 44#include <sys/module.h> 45#include <sys/bus.h> 46 47#include <machine/bus.h> 48#include <machine/resource.h> 49 50#include <net/ethernet.h> 51#include <net/if.h> 52#include <net/if_arp.h> 53#include <net/if_media.h> 54 55#include <dev/ep/if_epreg.h> 56#include <dev/ep/if_epvar.h> 57 58#include <dev/pccard/pccardvar.h> 59#include <dev/pccard/pccard_cis.h> 60 61#include "pccarddevs.h" 62 63struct ep_pccard_product 64{ 65 struct pccard_product prod; 66 int chipset; 67}; 68 69#define EP_CHIP_589 1 /* Classic 3c5x9 chipset */ 70#define EP_CHIP_574 2 /* Roadrunner */ 71 72static const struct ep_pccard_product ep_pccard_products[] = { 73 { PCMCIA_CARD(3COM, 3C1), EP_CHIP_589 }, 74 { PCMCIA_CARD(3COM, 3C562), EP_CHIP_589 }, 75 { PCMCIA_CARD(3COM, 3C589), EP_CHIP_589 }, 76 { PCMCIA_CARD(3COM, 3CXEM556), EP_CHIP_589 }, 77 { PCMCIA_CARD(3COM, 3CXEM556INT), EP_CHIP_589 }, 78 { PCMCIA_CARD(3COM, 3C574), EP_CHIP_574 }, 79 { PCMCIA_CARD(3COM, 3CCFEM556BI), EP_CHIP_574 }, 80 { { NULL } } 81}; 82 83static const struct ep_pccard_product * 84ep_pccard_lookup(device_t dev) 85{ 86 return ((const struct ep_pccard_product *)pccard_product_lookup(dev, 87 (const struct pccard_product *)ep_pccard_products, 88 sizeof(ep_pccard_products[0]), NULL)); 89} 90 91static int 92ep_pccard_probe(device_t dev) 93{ 94 const struct ep_pccard_product *pp; 95 int error; 96 uint32_t fcn = PCCARD_FUNCTION_UNSPEC; 97 98 /* Make sure we're a network function */ 99 error = pccard_get_function(dev, &fcn); 100 if (error != 0) 101 return (error); 102 if (fcn != PCCARD_FUNCTION_NETWORK) 103 return (ENXIO); 104 105 /* Check to see if we know about this card */ 106 if ((pp = ep_pccard_lookup(dev)) == NULL) 107 return EIO; 108 if (pp->prod.pp_name != NULL) 109 device_set_desc(dev, pp->prod.pp_name); 110 111 return 0; 112} 113 114static int 115ep_pccard_mac(struct pccard_tuple *tuple, void *argp) 116{ 117 uint8_t *enaddr = argp; 118 int i; 119 120 /* Code 0x88 is 3com's special cis node contianing the MAC */ 121 if (tuple->code != 0x88) 122 return (0); 123 124 /* Make sure this is a sane node */ 125 if (tuple->length < ETHER_ADDR_LEN) 126 return (0); 127 128 /* Copy the MAC ADDR and return success */ 129 for (i = 0; i < ETHER_ADDR_LEN; i += 2) { 130 enaddr[i] = pccard_tuple_read_1(tuple, i + 1); 131 enaddr[i + 1] = pccard_tuple_read_1(tuple, i); 132 } 133 return (1); 134} 135 136static int 137ep_pccard_attach(device_t dev) 138{ 139 struct ep_softc *sc = device_get_softc(dev); 140 uint16_t result; 141 int error = 0; 142 const struct ep_pccard_product *pp; 143 144 if ((pp = ep_pccard_lookup(dev)) == NULL) 145 panic("ep_pccard_attach: can't find product in attach."); 146 147 if (pp->chipset == EP_CHIP_589) { 148 sc->epb.mii_trans = 0; 149 sc->epb.cmd_off = 0; 150 } else { 151 sc->epb.mii_trans = 1; 152 sc->epb.cmd_off = 2; 153 } 154 155 if ((error = ep_alloc(dev))) { 156 device_printf(dev, "ep_alloc() failed! (%d)\n", error); 157 goto bad; 158 } 159 160 /* ROM size = 0, ROM base = 0 */ 161 /* For now, ignore AUTO SELECT feature of 3C589B and later. */ 162 error = ep_get_e(sc, EEPROM_ADDR_CFG, &result); 163 CSR_WRITE_2(sc, EP_W0_ADDRESS_CFG, result & 0xc000); 164 165 /* 166 * Fake IRQ must be 3 for 3C589 and 3C589B. 3C589D and newer 167 * ignore this value. 3C589C is unknown, as are the other 168 * cards supported by this driver, but it appears to never hurt 169 * and always helps. 170 */ 171 SET_IRQ(sc, 3); 172 CSR_WRITE_2(sc, EP_W0_PRODUCT_ID, sc->epb.prod_id); 173 174 if (sc->epb.mii_trans) { 175 /* 176 * turn on the MII transciever 177 */ 178 GO_WINDOW(sc, 3); 179 CSR_WRITE_2(sc, EP_W3_OPTIONS, 0x8040); 180 DELAY(1000); 181 CSR_WRITE_2(sc, EP_W3_OPTIONS, 0xc040); 182 CSR_WRITE_2(sc, EP_COMMAND, RX_RESET); 183 CSR_WRITE_2(sc, EP_COMMAND, TX_RESET); 184 EP_BUSY_WAIT(sc); 185 DELAY(1000); 186 CSR_WRITE_2(sc, EP_W3_OPTIONS, 0x8040); 187 } else 188 ep_get_media(sc); 189 190 /* 191 * The 3C562 (a-c revisions) stores the MAC in the CIS in a 192 * way that's unique to 3com. If we have one of these cards, 193 * scan the CIS for that MAC address, and use it if we find 194 * it. The NetBSD driver says that the ROADRUNNER chips also 195 * do this, which may be true, but none of the cards that I 196 * have include this TUPLE. Always prefer the MAC addr in the 197 * CIS tuple to the one returned by the card, as it appears that 198 * only those cards that need it have this special tuple. 199 */ 200 if (CARD_CIS_SCAN(device_get_parent(dev), ep_pccard_mac, sc->eaddr)) 201 sc->stat |= F_ENADDR_SKIP; 202 if ((error = ep_attach(sc))) { 203 device_printf(dev, "ep_attach() failed! (%d)\n", error); 204 goto bad; 205 } 206 if ((error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 207 ep_intr, sc, &sc->ep_intrhand))) { 208 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error); 209 goto bad; 210 } 211 return (0); 212bad: 213 ep_free(dev); 214 return (error); 215} 216 217static device_method_t ep_pccard_methods[] = { 218 /* Device interface */ 219 DEVMETHOD(device_probe, ep_pccard_probe), 220 DEVMETHOD(device_attach, ep_pccard_attach), 221 DEVMETHOD(device_detach, ep_detach), 222 223 {0, 0} 224}; 225 226static driver_t ep_pccard_driver = { 227 "ep", 228 ep_pccard_methods, 229 sizeof(struct ep_softc), 230}; 231 232extern devclass_t ep_devclass; 233 234DRIVER_MODULE(ep, pccard, ep_pccard_driver, ep_devclass, 0, 0); 235