sys/dev/isa/if_tscs_isa.c

   1 /*      $NetBSD: if_tscs_isa.c,v 1.13 2009/09/22 14:55:19 tsutsui Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2005 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Jesse Off
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 __KERNEL_RCSID(0, "$NetBSD: if_tscs_isa.c,v 1.13 2009/09/22 14:55:19 tsutsui Exp $");
  34
  35 #include <sys/param.h>
  36 #include <sys/systm.h>
  37 #include <sys/socket.h>
  38 #include <sys/device.h>
  39
  40 #include "rnd.h"
  41 #if NRND > 0
  42 #include <sys/rnd.h>
  43 #endif
  44
  45 #include <net/if.h>
  46 #include <net/if_ether.h>
  47 #include <net/if_media.h>
  48
  49 #include <sys/bus.h>
  50 #include <sys/intr.h>
  51
  52 #include <dev/isa/isareg.h>
  53 #include <dev/isa/isavar.h>
  54 #include <dev/isa/isadmavar.h>
  55
  56 #include <dev/ic/cs89x0reg.h>
  57 #include <dev/ic/cs89x0var.h>
  58 #include <dev/isa/cs89x0isavar.h>
  59
  60 static int      tscs_isa_probe(device_t, cfdata_t, void *);
  61 static void     tscs_isa_attach(device_t, device_t, void *);
  62
  63 CFATTACH_DECL_NEW(tscs_isa, sizeof(struct cs_softc_isa),
  64     tscs_isa_probe, tscs_isa_attach, NULL, NULL);
  65
  66 int
  67 tscs_isa_probe(device_t parent, cfdata_t cf, void *aux)
  68 {
  69         struct isa_attach_args *ia = aux;
  70         bus_space_tag_t iot = ia->ia_iot;
  71         bus_space_handle_t ioh, pldh;
  72         struct cs_softc sc;
  73         int rv = 0, have_io = 0, have_pld = 0, irq;
  74         u_int8_t jpcfg;
  75
  76         if (ia->ia_nio < 1)
  77                 return (0);
  78         if (ia->ia_nirq < 1)
  79                 return (0);
  80
  81         if (ISA_DIRECT_CONFIG(ia))
  82                 return (0);
  83
  84         /*
  85          * Disallow wildcarded I/O base.
  86          */
  87         if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT)
  88                 return (0);
  89
  90         /*
  91          * Map the I/O space.
  92          */
  93         if (bus_space_map(ia->ia_iot, ia->ia_io[0].ir_addr - 0x300, 9,
  94             0, &pldh))
  95                 goto out;
  96         have_pld = 1;
  97
  98         if ((bus_space_read_1(ia->ia_iot, pldh, 0)  & 0xf) == 0xa &&
  99             (bus_space_read_1(ia->ia_iot, pldh, 0x8)  & 0xf) == 0x5 &&
 100             (bus_space_read_1(ia->ia_iot, pldh, 0x8)  & 0xf) == 0xa) {
 101                 bus_space_read_1(ia->ia_iot, pldh, 0x8); /* PLD rev. */
 102                 jpcfg = bus_space_read_1(ia->ia_iot, pldh, 0x8) & 0xf;
 103         } else {
 104                 goto out;
 105         }
 106
 107         if (bus_space_map(ia->ia_iot, ia->ia_io[0].ir_addr, CS8900_IOSIZE,
 108             0, &ioh))
 109                 goto out;
 110         have_io = 1;
 111
 112         memset(&sc, 0, sizeof sc);
 113         sc.sc_iot = iot;
 114         sc.sc_ioh = ioh;
 115         /* Verify that it's a Crystal product. */
 116         if (CS_READ_PACKET_PAGE_IO(&sc, PKTPG_EISA_NUM) !=
 117             EISA_NUM_CRYSTAL)
 118                 goto out;
 119
 120         /*
 121          * Verify that it's a supported chip.
 122          */
 123         switch (CS_READ_PACKET_PAGE_IO(&sc, PKTPG_PRODUCT_ID) &
 124             PROD_ID_MASK) {
 125         case PROD_ID_CS8900:
 126                 break;
 127         default:
 128                 /* invalid product ID */
 129                 goto out;
 130         }
 131
 132         /*
 133          * If the IRQ wasn't specified, get it from the EEPROM.
 134          */
 135         if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ) {
 136                 switch (jpcfg >> 1) {
 137                 case 0x1:
 138                         irq = 5;
 139                         break;
 140                 case 0x2:
 141                         irq = 6;
 142                         break;
 143                 case 0x4:
 144                         irq = 7;
 145                         break;
 146                 default:
 147                         goto out;
 148                 }
 149         } else
 150                 irq = ia->ia_irq[0].ir_irq;
 151
 152         ia->ia_nio = 1;
 153         ia->ia_io[0].ir_size = CS8900_IOSIZE;
 154         ia->ia_niomem = 0;
 155         ia->ia_nirq = 1;
 156         ia->ia_ndrq = 0;
 157         ia->ia_irq[0].ir_irq = irq;
 158
 159         rv = 1;
 160
 161  out:
 162         if (have_io)
 163                 bus_space_unmap(iot, ioh, CS8900_IOSIZE);
 164         if (have_pld)
 165                 bus_space_unmap(iot, pldh, 0x9);
 166
 167         return (rv);
 168 }
 169
 170 void
 171 tscs_isa_attach(device_t parent, device_t self, void *aux)
 172 {
 173         struct cs_softc_isa *isc = device_private(self);
 174         struct cs_softc *sc = &isc->sc_cs;
 175         struct isa_attach_args *ia = aux;
 176
 177         sc->sc_dev = self;
 178         isc->sc_ic = ia->ia_ic;
 179         sc->sc_iot = ia->ia_iot;
 180         sc->sc_memt = ia->ia_memt;
 181
 182         isc->sc_drq = -1;
 183         sc->sc_irq = ia->ia_irq[0].ir_irq;
 184
 185         printf(": Technologic Systems TS-ETH10\n");
 186
 187         /*
 188          * Map the device.
 189          */
 190         if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, CS8900_IOSIZE,
 191             0, &sc->sc_ioh)) {
 192                 aprint_error_dev(self, "unable to map i/o space\n");
 193                 return;
 194         }
 195
 196         sc->sc_ih = isa_intr_establish(ia->ia_ic, sc->sc_irq, IST_EDGE,
 197             IPL_NET, cs_intr, sc);
 198         if (sc->sc_ih == NULL) {
 199                 aprint_error_dev(self, "unable to establish interrupt\n");
 200                 return;
 201         }
 202
 203         sc->sc_dma_chipinit = NULL;
 204         sc->sc_dma_attach = NULL;
 205         sc->sc_dma_process_rx = NULL;
 206
 207         /* all jumper routed IRQs are connected to pseudo CS8900 IRQ 5 */
 208         sc->sc_irq = 5;
 209
 210         cs_attach(sc, NULL, NULL, 0, 0);
 211 }