sys/i4b/layer1/i4b_ctx_s0P.c

   1 /*
   2  * Copyright (c) 1997, 1999 Hellmuth Michaelis. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  23  * SUCH DAMAGE.
  24  *
  25  *---------------------------------------------------------------------------
  26  *
  27  *      isic - I4B Siemens ISDN Chipset Driver for Creatix/Teles PnP
  28  *      ============================================================
  29  *
  30  *      $Id: i4b_ctx_s0P.c,v 1.4 1999/12/13 21:25:26 hm Exp $
  31  *
  32  * $FreeBSD$
  33  *
  34  *      last edit-date: [Mon Dec 13 21:59:23 1999]
  35  *
  36  *      Note: this driver works for the Creatix ISDN S0-16 P+P and
  37  *            for the Teles S0/16.3 PnP card. Although they are not
  38  *            the same hardware and don't share the same PnP config
  39  *            information, once the base addresses are set, the
  40  *            offsets are same and therefore they can use the same
  41  *            driver.
  42  *
  43  *---------------------------------------------------------------------------*/
  44
  45 #include "isic.h"
  46 #include "opt_i4b.h"
  47
  48 #if (NISIC > 0) && (defined(CRTX_S0_P) || defined(TEL_S0_16_3_P))
  49
  50 #include <sys/param.h>
  51 #include <sys/systm.h>
  52 #include <sys/mbuf.h>
  53 #include <sys/socket.h>
  54
  55 #include <machine/clock.h>
  56
  57 #include <net/if.h>
  58
  59 #include <machine/i4b_debug.h>
  60 #include <machine/i4b_ioctl.h>
  61
  62 #include <i4b/include/i4b_global.h>
  63
  64 #include <i4b/layer1/i4b_l1.h>
  65 #include <i4b/layer1/i4b_isac.h>
  66 #include <i4b/layer1/i4b_hscx.h>
  67
  68 #include <i4b/include/i4b_l1l2.h>
  69 #include <i4b/include/i4b_mbuf.h>
  70
  71 /*---------------------------------------------------------------------------*
  72  *      Creatix / Teles PnP ISAC get fifo routine
  73  *---------------------------------------------------------------------------*/
  74 static void
  75 ctxs0P_read_fifo(struct l1_softc *sc, int what, void *buf, size_t size)
  76 {
  77         bus_space_tag_t    t = rman_get_bustag(sc->sc_resources.io_base[what+2]);
  78         bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[what+2]);
  79         bus_space_read_multi_1(t,h,0x3e,buf,size);
  80 }
  81
  82 /*---------------------------------------------------------------------------*
  83  *      Creatix / Teles PnP ISAC put fifo routine
  84  *---------------------------------------------------------------------------*/
  85 static void
  86 ctxs0P_write_fifo(struct l1_softc *sc, int what, void *buf, size_t size)
  87 {
  88         bus_space_tag_t    t = rman_get_bustag(sc->sc_resources.io_base[what+2]);
  89         bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[what+2]);
  90         bus_space_write_multi_1(t,h,0x3e,buf,size);
  91 }
  92
  93 /*---------------------------------------------------------------------------*
  94  *      Creatix / Teles PnP ISAC put register routine
  95  *---------------------------------------------------------------------------*/
  96 static void
  97 ctxs0P_write_reg(struct l1_softc *sc, int what, bus_size_t offs, u_int8_t data)
  98 {
  99         bus_space_tag_t    t = rman_get_bustag(sc->sc_resources.io_base[what+2]);
 100         bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[what+2]);
 101         bus_space_write_1(t,h,offs,data);
 102 }
 103
 104 /*---------------------------------------------------------------------------*
 105  *      Creatix / Teles PnP ISAC get register routine
 106  *---------------------------------------------------------------------------*/
 107 static u_int8_t
 108 ctxs0P_read_reg(struct l1_softc *sc, int what, bus_size_t offs)
 109 {
 110         bus_space_tag_t    t = rman_get_bustag(sc->sc_resources.io_base[what+2]);
 111         bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[what+2]);
 112         return bus_space_read_1(t,h,offs);
 113 }
 114
 115 /*---------------------------------------------------------------------------*
 116  *      isic_attach_Cs0P - attach Creatix / Teles PnP
 117  *---------------------------------------------------------------------------*/
 118 int
 119 isic_attach_Cs0P(device_t dev)
 120 {
 121         u_int32_t iobase1;
 122         u_int32_t iobase2;
 123         int unit = device_get_unit(dev);
 124         struct l1_softc *sc = &l1_sc[unit];
 125         bus_space_tag_t t;
 126         bus_space_handle_t h;
 127
 128         /*
 129          * this card needs a second io_base,
 130          * free resources if we don't get it
 131          */
 132
 133         sc->sc_resources.io_rid[1] = 1;
 134
 135         if(!(sc->sc_resources.io_base[1] =
 136                         bus_alloc_resource(dev, SYS_RES_IOPORT,
 137                                         &sc->sc_resources.io_rid[1],
 138                                         0UL, ~0UL, 1, RF_ACTIVE)))
 139         {
 140                 printf("isic%d: Could not get io area 1 for Creatix / Teles PnP!\n", unit);
 141                 isic_detach_common(dev);
 142                 return ENXIO;
 143         }
 144
 145         /* remember the io base addresses */
 146
 147         iobase1 = rman_get_start(sc->sc_resources.io_base[0]);
 148         iobase2 = rman_get_start(sc->sc_resources.io_base[1]);
 149
 150         /*
 151          * because overlapping resources are invalid,
 152          * release the first io port resource
 153          */
 154
 155         bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_resources.io_rid[0],
 156                         sc->sc_resources.io_base[0]);
 157
 158         /* set and allocate a base io address for the ISAC chip */
 159
 160         sc->sc_resources.io_rid[2] = 2;
 161
 162         bus_set_resource(dev, SYS_RES_IOPORT, 2, iobase1-0x20, 0x40);
 163
 164         if(!(sc->sc_resources.io_base[2] =
 165                 bus_alloc_resource(dev, SYS_RES_IOPORT,
 166                                    &sc->sc_resources.io_rid[2],
 167                                    0ul, ~0ul, 1, RF_ACTIVE)))
 168         {
 169                 printf("isic%d: Could not get io area 2 for Creatix / Teles PnP!\n", unit);
 170                 isic_detach_common(dev);
 171                 return ENXIO;
 172         }
 173
 174         /*
 175          * because overlapping resources are invalid,
 176          * release the second io port resource
 177          */
 178
 179         bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_resources.io_rid[1],
 180                         sc->sc_resources.io_base[1]);
 181
 182         /* set and allocate a resource for the HSCX channel A */
 183
 184         sc->sc_resources.io_rid[3] = 3;
 185
 186 /*XXX*/ /* FIXME !!!!
 187          * the width of the resource is too small, there are accesses
 188          * to it with an offset of 0x3e into the next resource. anyway,
 189          * it seems to work and i have no idea how to do 2 resources
 190          * overlapping each other.
 191          */
 192
 193         bus_set_resource(dev, SYS_RES_IOPORT, 3, iobase2-0x20, 0x20);
 194
 195         if(!(sc->sc_resources.io_base[3] =
 196                 bus_alloc_resource(dev,SYS_RES_IOPORT,
 197                                    &sc->sc_resources.io_rid[3],
 198                                    0ul,~0ul, 1, RF_ACTIVE)))
 199         {
 200                 printf("isic%d: Could not get io area 3 for Creatix / Teles PnP!\n", unit);
 201                 isic_detach_common(dev);
 202                 return ENXIO;
 203         }
 204
 205         /* set and allocate a resources for the HSCX channel B */
 206
 207         sc->sc_resources.io_rid[4] = 4;
 208
 209         bus_set_resource(dev, SYS_RES_IOPORT, 4, iobase2, 0x40);
 210
 211         if(!(sc->sc_resources.io_base[4] =
 212                 bus_alloc_resource(dev,SYS_RES_IOPORT,
 213                                    &sc->sc_resources.io_rid[4],
 214                                    0ul, ~0ul, 1, RF_ACTIVE)))
 215         {
 216                 printf("isic%d: Could not get io area 4 for Creatix / Teles PnP!\n", unit);
 217                 isic_detach_common(dev);
 218                 return ENXIO;
 219         }
 220
 221         /* setup access routines */
 222
 223         sc->clearirq = NULL;
 224         sc->readreg = ctxs0P_read_reg;
 225         sc->writereg = ctxs0P_write_reg;
 226
 227         sc->readfifo = ctxs0P_read_fifo;
 228         sc->writefifo = ctxs0P_write_fifo;
 229
 230         /* setup card type */
 231
 232         sc->sc_cardtyp = CARD_TYPEP_CS0P;
 233
 234         /* setup IOM bus type */
 235
 236         sc->sc_bustyp = BUS_TYPE_IOM2;
 237
 238         sc->sc_ipac = 0;
 239         sc->sc_bfifolen = HSCX_FIFO_LEN;
 240
 241         /* enable the card */
 242
 243         t = rman_get_bustag(sc->sc_resources.io_base[2]);
 244         h = rman_get_bushandle(sc->sc_resources.io_base[2]);
 245
 246         bus_space_write_1(t, h, 0x3c, 0);
 247         DELAY(SEC_DELAY / 10);
 248
 249         bus_space_write_1(t, h, 0x3c, 1);
 250         DELAY(SEC_DELAY / 10);
 251
 252         return 0;
 253 }
 254
 255 #endif /* (NISIC > 0) && (defined(CRTX_S0_P) || defined(TEL_S0_16_3_P)) */
 256