sys/net/i4b/layer1/isic/i4b_tel_s016.c

   1 /*
   2  *   Copyright (c) 1996 Arne Helme. All rights reserved.
   3  *
   4  *   Copyright (c) 1996 Gary Jennejohn. All rights reserved.
   5  *
   6  *   Copyright (c) 1997, 2001 Hellmuth Michaelis. All rights reserved.
   7  *
   8  *   Redistribution and use in source and binary forms, with or without
   9  *   modification, are permitted provided that the following conditions
  10  *   are met:
  11  *
  12  *   1. Redistributions of source code must retain the above copyright
  13  *      notice, this list of conditions and the following disclaimer.
  14  *   2. Redistributions in binary form must reproduce the above copyright
  15  *      notice, this list of conditions and the following disclaimer in the
  16  *      documentation and/or other materials provided with the distribution.
  17  *   3. Neither the name of the author nor the names of any co-contributors
  18  *      may be used to endorse or promote products derived from this software
  19  *      without specific prior written permission.
  20  *   4. Altered versions must be plainly marked as such, and must not be
  21  *      misrepresented as being the original software and/or documentation.
  22  *
  23  *   THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  24  *   ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  *   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  *   ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  27  *   FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  *   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  *   OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  *   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  *   LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  *   OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  *   SUCH DAMAGE.
  34  *
  35  *---------------------------------------------------------------------------
  36  *
  37  *      isic - I4B Siemens ISDN Chipset Driver for Teles S0/16 and clones
  38  *      =================================================================
  39  *
  40  * $FreeBSD: src/sys/i4b/layer1/isic/i4b_tel_s016.c,v 1.5.2.1 2001/08/10 14:08:38 obrien Exp $
  41  *
  42  *      last edit-date: [Wed Jan 24 09:27:24 2001]
  43  *
  44  *---------------------------------------------------------------------------*/
  45
  46 #include "isic.h"
  47 #include "opt_i4b.h"
  48
  49 #if NISIC > 0 && defined(TEL_S0_16)
  50
  51 #include <sys/param.h>
  52 #include <sys/systm.h>
  53 #include <sys/socket.h>
  54 #include <net/if.h>
  55
  56 #include <machine/md_var.h>
  57 #include <machine/i4b_ioctl.h>
  58 #include <machine/i4b_trace.h>
  59
  60 #include <i4b/layer1/i4b_l1.h>
  61 #include <i4b/layer1/isic/i4b_isic.h>
  62 #include <i4b/layer1/isic/i4b_hscx.h>
  63
  64 #define TELES_S016_MEMSIZE 0x1000
  65
  66 static u_char intr_no[] = { 1, 1, 0, 2, 4, 6, 1, 1, 1, 0, 8, 10, 12, 1, 1, 14 };
  67 static const bus_size_t offset[] = { 0x100, 0x180, 0x1c0 };
  68
  69 /*---------------------------------------------------------------------------*
  70  *      Teles S0/16 write register routine
  71  *---------------------------------------------------------------------------*/
  72 static void
  73 tels016_write_reg(struct l1_softc *sc, int what, bus_size_t offs, u_int8_t data)
  74 {
  75         bus_space_tag_t    t = rman_get_bustag(sc->sc_resources.mem);
  76         bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.mem);
  77
  78         offs += offset[what];
  79
  80         if (offs & 0x01)
  81                 offs |= 0x200;
  82
  83         bus_space_write_1(t, h, offs, data);
  84 }
  85
  86 /*---------------------------------------------------------------------------*
  87  *      Teles S0/16 read register routine
  88  *---------------------------------------------------------------------------*/
  89 static u_int8_t
  90 tels016_read_reg(struct l1_softc *sc,   int what, bus_size_t offs)
  91 {
  92         bus_space_tag_t    t = rman_get_bustag(sc->sc_resources.mem);
  93         bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.mem);
  94
  95         offs += offset[what];
  96
  97         if(offs & 0x01)
  98                 offs |= 0x200;
  99
 100         return bus_space_read_1(t, h, offs);
 101 }
 102
 103 /*---------------------------------------------------------------------------*
 104  *      Teles S0/16 fifo write routine
 105  *---------------------------------------------------------------------------*/
 106 static void
 107 tels016_write_fifo(struct l1_softc *sc, int what, void *data, size_t size)
 108 {
 109         bus_space_tag_t    t = rman_get_bustag(sc->sc_resources.mem);
 110         bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.mem);
 111         bus_space_write_region_1(t, h, offset[what], data, size);
 112 }
 113
 114 /*---------------------------------------------------------------------------*
 115  *      Teles S0/16 fifo read routine
 116  *---------------------------------------------------------------------------*/
 117 static void
 118 tels016_read_fifo(struct l1_softc *sc, int what, void *buf, size_t size)
 119 {
 120         bus_space_tag_t    t = rman_get_bustag(sc->sc_resources.mem);
 121         bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.mem);
 122         bus_space_read_region_1(t, h, offset[what], buf, size);
 123 }
 124
 125 /*---------------------------------------------------------------------------*
 126  *      isic_probe_s016 - probe for Teles S0/16 and compatibles
 127  *---------------------------------------------------------------------------*/
 128 int
 129 isic_probe_s016(device_t dev)
 130 {
 131         size_t unit = device_get_unit(dev);     /* get unit */
 132         struct l1_softc *sc = 0;                /* softc */
 133         void *ih = 0;                           /* dummy */
 134         u_int8_t b0,b1,b2;                      /* for signature */
 135         bus_space_tag_t    t;                   /* bus things */
 136         bus_space_handle_t h;
 137
 138         /* check max unit range */
 139
 140         if(unit >= ISIC_MAXUNIT)
 141         {
 142                 printf("isic%d: Error, unit %d >= ISIC_MAXUNIT for Teles S0/16!\n",
 143                                 unit, unit);
 144                 return(ENXIO);
 145         }
 146
 147         sc = &l1_sc[unit];                      /* get pointer to softc */
 148         sc->sc_unit = unit;                     /* set unit */
 149
 150         /* see if an io base was supplied */
 151
 152         if(!(sc->sc_resources.io_base[0] =
 153                         bus_alloc_resource(dev, SYS_RES_IOPORT,
 154                                            &sc->sc_resources.io_rid[0],
 155                                            0ul, ~0ul, 1, RF_ACTIVE)))
 156         {
 157                 printf("isic%d: Could not allocate i/o port for Teles S0/16.\n", unit);
 158                 return(ENXIO);
 159         }
 160
 161         sc->sc_port = rman_get_start(sc->sc_resources.io_base[0]);
 162
 163         /*
 164          * check if the provided io port is valid
 165          */
 166
 167         switch(sc->sc_port)
 168         {
 169                 case 0xd80:
 170                 case 0xe80:
 171                 case 0xf80:
 172                         break;
 173
 174                 default:
 175                         printf("isic%d: Error, invalid iobase 0x%x specified for Teles S0/16!\n",
 176                                 unit, sc->sc_port);
 177                         isic_detach_common(dev);
 178                         return(ENXIO);
 179                         break;
 180         }
 181
 182         /* allocate memory resource */
 183
 184         if(!(sc->sc_resources.mem =
 185                         bus_alloc_resource(dev, SYS_RES_MEMORY,
 186                                         &sc->sc_resources.mem_rid,
 187                                         0ul, ~0ul, TELES_S016_MEMSIZE,
 188                                         RF_ACTIVE)))
 189         {
 190                 printf("isic%d: Could not allocate memory for Teles S0/16.\n", unit);
 191                 isic_detach_common(dev);
 192                 return(ENXIO);
 193         }
 194
 195         /*
 196          * get virtual addr.
 197          */
 198         sc->sc_vmem_addr = rman_get_virtual(sc->sc_resources.mem);
 199
 200         /*
 201          * check for valid adresses
 202          */
 203         switch(kvtop(sc->sc_vmem_addr))
 204         {
 205                 case 0xc0000:
 206                 case 0xc2000:
 207                 case 0xc4000:
 208                 case 0xc6000:
 209                 case 0xc8000:
 210                 case 0xca000:
 211                 case 0xcc000:
 212                 case 0xce000:
 213                 case 0xd0000:
 214                 case 0xd2000:
 215                 case 0xd4000:
 216                 case 0xd6000:
 217                 case 0xd8000:
 218                 case 0xda000:
 219                 case 0xdc000:
 220                 case 0xde000:
 221                         break;
 222
 223                 default:
 224                         printf("isic%d: Error, invalid memory address 0x%lx for Teles S0/16!\n",
 225                                 unit, kvtop(sc->sc_vmem_addr));
 226                         isic_detach_common(dev);
 227                         return(ENXIO);
 228                         break;
 229         }
 230
 231         /* setup ISAC access routines */
 232
 233         sc->clearirq = NULL;
 234
 235         sc->readreg = tels016_read_reg;
 236         sc->writereg = tels016_write_reg;
 237
 238         sc->readfifo = tels016_read_fifo;
 239         sc->writefifo = tels016_write_fifo;
 240
 241         /* setup card type */
 242         sc->sc_cardtyp = CARD_TYPEP_16;
 243
 244         /* setup IOM bus type */
 245
 246         sc->sc_bustyp = BUS_TYPE_IOM1;
 247
 248         sc->sc_ipac = 0;
 249         sc->sc_bfifolen = HSCX_FIFO_LEN;
 250
 251         /* setup ISAC base addr, though we don't really need it */
 252
 253         ISAC_BASE = (caddr_t)((sc->sc_vmem_addr) + 0x100);
 254
 255         /* setup HSCX base addr */
 256
 257         HSCX_A_BASE = (caddr_t)((sc->sc_vmem_addr) + 0x180);
 258         HSCX_B_BASE = (caddr_t)((sc->sc_vmem_addr) + 0x1c0);
 259
 260         t = rman_get_bustag(sc->sc_resources.io_base[0]);
 261         h = rman_get_bushandle(sc->sc_resources.io_base[0]);
 262
 263         /* get signature bytes */
 264         b0 = bus_space_read_1(t, h, 0);
 265         b1 = bus_space_read_1(t, h, 1);
 266         b2 = bus_space_read_1(t, h, 2);
 267
 268         /* check signature bytes */
 269         if(b0 != 0x51)
 270         {
 271                 printf("isic%d: Error, signature 1 0x%x != 0x51 for Teles S0/16!\n",
 272                         unit, b0);
 273                 isic_detach_common(dev);
 274                 return(ENXIO);
 275         }
 276
 277         if(b1 != 0x93)
 278         {
 279                 printf("isic%d: Error, signature 2 0x%x != 0x93 for Teles S0/16!\n",
 280                         unit, b1);
 281                 isic_detach_common(dev);
 282                 return(ENXIO);
 283         }
 284
 285         if((b2 != 0x1e) && (b2 != 0x1f))
 286         {
 287                 printf("isic%d: Error, signature 3 0x%x != 0x1e or 0x1f for Teles S0/16!\n",
 288                         unit, b2);
 289                 isic_detach_common(dev);
 290                 return(ENXIO);
 291         }
 292
 293         /* get our irq */
 294
 295         if(!(sc->sc_resources.irq =
 296                         bus_alloc_resource(dev, SYS_RES_IRQ,
 297                                                 &sc->sc_resources.irq_rid,
 298                                                 0ul, ~0ul, 1, RF_ACTIVE)))
 299         {
 300                 printf("isic%d: Could not allocate irq for Teles S0/16.\n", unit);
 301                 isic_detach_common(dev);
 302                 return ENXIO;
 303         }
 304
 305         /* register interupt routine */
 306
 307         bus_setup_intr(dev, sc->sc_resources.irq,
 308                         INTR_TYPE_NET,
 309                         (void(*)(void *))(isicintr),
 310                         sc, &ih);
 311
 312         /* get the irq number */
 313
 314         sc->sc_irq = rman_get_start(sc->sc_resources.irq);
 315
 316         /* check IRQ validity */
 317
 318         if((intr_no[sc->sc_irq]) == 1)
 319         {
 320                 printf("isic%d: Error, invalid IRQ [%d] specified for Teles S0/16!\n",
 321                         unit, sc->sc_irq);
 322                 isic_detach_common(dev);
 323                 return(ENXIO);
 324         }
 325
 326         return (0);
 327 }
 328
 329 /*---------------------------------------------------------------------------*
 330  *      isic_attach_s016 - attach Teles S0/16 and compatibles
 331  *---------------------------------------------------------------------------*/
 332 int
 333 isic_attach_s016(device_t dev)
 334 {
 335         struct l1_softc *sc = &l1_sc[device_get_unit(dev)];
 336         u_long irq;
 337
 338         bus_space_tag_t    ta = rman_get_bustag(sc->sc_resources.mem);
 339         bus_space_handle_t ha = rman_get_bushandle(sc->sc_resources.mem);
 340         bus_space_tag_t    tb = rman_get_bustag(sc->sc_resources.io_base[0]);
 341         bus_space_handle_t hb = rman_get_bushandle(sc->sc_resources.io_base[0]);
 342
 343         /* is this right for FreeBSD or off by one ? */
 344         irq = intr_no[sc->sc_irq];
 345
 346         /* configure IRQ */
 347
 348         irq |= ((u_long) sc->sc_vmem_addr) >> 9;
 349
 350         DELAY(SEC_DELAY / 10);
 351         bus_space_write_1(tb, hb, 4, irq);
 352
 353         DELAY(SEC_DELAY / 10);
 354         bus_space_write_1(tb, hb, 4, irq | 0x01);
 355
 356         DELAY(SEC_DELAY / 5);
 357
 358         /* set card bit off */
 359
 360         bus_space_write_1(ta, ha, 0x80, 0);
 361         DELAY(SEC_DELAY / 5);
 362
 363         /* set card bit on */
 364
 365         bus_space_write_1(ta, ha, 0x80, 1);
 366         DELAY(SEC_DELAY / 5);
 367
 368         return 0;
 369 }
 370 #endif /* ISIC > 0 */