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  * $DragonFly: src/sys/net/i4b/layer1/isic/i4b_tel_s016.c,v 1.3 2003/08/07 21:17:26 dillon Exp $
  42  *
  43  *      last edit-date: [Wed Jan 24 09:27:24 2001]
  44  *
  45  *---------------------------------------------------------------------------*/
  46
  47 #include "use_isic.h"
  48 #include "opt_i4b.h"
  49
  50 #if NISIC > 0 && defined(TEL_S0_16)
  51
  52 #include <sys/param.h>
  53 #include <sys/systm.h>
  54 #include <sys/socket.h>
  55 #include <net/if.h>
  56
  57 #include <machine/md_var.h>
  58 #include <net/i4b/include/machine/i4b_ioctl.h>
  59 #include <net/i4b/include/machine/i4b_trace.h>
  60
  61 #include "../i4b_l1.h"
  62 #include "i4b_isic.h"
  63 #include "i4b_hscx.h"
  64
  65 #define TELES_S016_MEMSIZE 0x1000
  66
  67 static u_char intr_no[] = { 1, 1, 0, 2, 4, 6, 1, 1, 1, 0, 8, 10, 12, 1, 1, 14 };
  68 static const bus_size_t offset[] = { 0x100, 0x180, 0x1c0 };
  69
  70 /*---------------------------------------------------------------------------*
  71  *      Teles S0/16 write register routine
  72  *---------------------------------------------------------------------------*/
  73 static void
  74 tels016_write_reg(struct l1_softc *sc, int what, bus_size_t offs, u_int8_t data)
  75 {
  76         bus_space_tag_t    t = rman_get_bustag(sc->sc_resources.mem);
  77         bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.mem);
  78
  79         offs += offset[what];
  80
  81         if (offs & 0x01)
  82                 offs |= 0x200;
  83
  84         bus_space_write_1(t, h, offs, data);
  85 }
  86
  87 /*---------------------------------------------------------------------------*
  88  *      Teles S0/16 read register routine
  89  *---------------------------------------------------------------------------*/
  90 static u_int8_t
  91 tels016_read_reg(struct l1_softc *sc,   int what, bus_size_t offs)
  92 {
  93         bus_space_tag_t    t = rman_get_bustag(sc->sc_resources.mem);
  94         bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.mem);
  95
  96         offs += offset[what];
  97
  98         if(offs & 0x01)
  99                 offs |= 0x200;
 100
 101         return bus_space_read_1(t, h, offs);
 102 }
 103
 104 /*---------------------------------------------------------------------------*
 105  *      Teles S0/16 fifo write routine
 106  *---------------------------------------------------------------------------*/
 107 static void
 108 tels016_write_fifo(struct l1_softc *sc, int what, void *data, size_t size)
 109 {
 110         bus_space_tag_t    t = rman_get_bustag(sc->sc_resources.mem);
 111         bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.mem);
 112         bus_space_write_region_1(t, h, offset[what], data, size);
 113 }
 114
 115 /*---------------------------------------------------------------------------*
 116  *      Teles S0/16 fifo read routine
 117  *---------------------------------------------------------------------------*/
 118 static void
 119 tels016_read_fifo(struct l1_softc *sc, int what, void *buf, size_t size)
 120 {
 121         bus_space_tag_t    t = rman_get_bustag(sc->sc_resources.mem);
 122         bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.mem);
 123         bus_space_read_region_1(t, h, offset[what], buf, size);
 124 }
 125
 126 /*---------------------------------------------------------------------------*
 127  *      isic_probe_s016 - probe for Teles S0/16 and compatibles
 128  *---------------------------------------------------------------------------*/
 129 int
 130 isic_probe_s016(device_t dev)
 131 {
 132         size_t unit = device_get_unit(dev);     /* get unit */
 133         struct l1_softc *sc = 0;                /* softc */
 134         void *ih = 0;                           /* dummy */
 135         u_int8_t b0,b1,b2;                      /* for signature */
 136         bus_space_tag_t    t;                   /* bus things */
 137         bus_space_handle_t h;
 138
 139         /* check max unit range */
 140
 141         if(unit >= ISIC_MAXUNIT)
 142         {
 143                 printf("isic%d: Error, unit %d >= ISIC_MAXUNIT for Teles S0/16!\n",
 144                                 unit, unit);
 145                 return(ENXIO);
 146         }
 147
 148         sc = &l1_sc[unit];                      /* get pointer to softc */
 149         sc->sc_unit = unit;                     /* set unit */
 150
 151         /* see if an io base was supplied */
 152
 153         if(!(sc->sc_resources.io_base[0] =
 154                         bus_alloc_resource(dev, SYS_RES_IOPORT,
 155                                            &sc->sc_resources.io_rid[0],
 156                                            0ul, ~0ul, 1, RF_ACTIVE)))
 157         {
 158                 printf("isic%d: Could not allocate i/o port for Teles S0/16.\n", unit);
 159                 return(ENXIO);
 160         }
 161
 162         sc->sc_port = rman_get_start(sc->sc_resources.io_base[0]);
 163
 164         /*
 165          * check if the provided io port is valid
 166          */
 167
 168         switch(sc->sc_port)
 169         {
 170                 case 0xd80:
 171                 case 0xe80:
 172                 case 0xf80:
 173                         break;
 174
 175                 default:
 176                         printf("isic%d: Error, invalid iobase 0x%x specified for Teles S0/16!\n",
 177                                 unit, sc->sc_port);
 178                         isic_detach_common(dev);
 179                         return(ENXIO);
 180                         break;
 181         }
 182
 183         /* allocate memory resource */
 184
 185         if(!(sc->sc_resources.mem =
 186                         bus_alloc_resource(dev, SYS_RES_MEMORY,
 187                                         &sc->sc_resources.mem_rid,
 188                                         0ul, ~0ul, TELES_S016_MEMSIZE,
 189                                         RF_ACTIVE)))
 190         {
 191                 printf("isic%d: Could not allocate memory for Teles S0/16.\n", unit);
 192                 isic_detach_common(dev);
 193                 return(ENXIO);
 194         }
 195
 196         /*
 197          * get virtual addr.
 198          */
 199         sc->sc_vmem_addr = rman_get_virtual(sc->sc_resources.mem);
 200
 201         /*
 202          * check for valid adresses
 203          */
 204         switch(kvtop(sc->sc_vmem_addr))
 205         {
 206                 case 0xc0000:
 207                 case 0xc2000:
 208                 case 0xc4000:
 209                 case 0xc6000:
 210                 case 0xc8000:
 211                 case 0xca000:
 212                 case 0xcc000:
 213                 case 0xce000:
 214                 case 0xd0000:
 215                 case 0xd2000:
 216                 case 0xd4000:
 217                 case 0xd6000:
 218                 case 0xd8000:
 219                 case 0xda000:
 220                 case 0xdc000:
 221                 case 0xde000:
 222                         break;
 223
 224                 default:
 225                         printf("isic%d: Error, invalid memory address 0x%lx for Teles S0/16!\n",
 226                                 unit, kvtop(sc->sc_vmem_addr));
 227                         isic_detach_common(dev);
 228                         return(ENXIO);
 229                         break;
 230         }
 231
 232         /* setup ISAC access routines */
 233
 234         sc->clearirq = NULL;
 235
 236         sc->readreg = tels016_read_reg;
 237         sc->writereg = tels016_write_reg;
 238
 239         sc->readfifo = tels016_read_fifo;
 240         sc->writefifo = tels016_write_fifo;
 241
 242         /* setup card type */
 243         sc->sc_cardtyp = CARD_TYPEP_16;
 244
 245         /* setup IOM bus type */
 246
 247         sc->sc_bustyp = BUS_TYPE_IOM1;
 248
 249         sc->sc_ipac = 0;
 250         sc->sc_bfifolen = HSCX_FIFO_LEN;
 251
 252         /* setup ISAC base addr, though we don't really need it */
 253
 254         ISAC_BASE = (caddr_t)((sc->sc_vmem_addr) + 0x100);
 255
 256         /* setup HSCX base addr */
 257
 258         HSCX_A_BASE = (caddr_t)((sc->sc_vmem_addr) + 0x180);
 259         HSCX_B_BASE = (caddr_t)((sc->sc_vmem_addr) + 0x1c0);
 260
 261         t = rman_get_bustag(sc->sc_resources.io_base[0]);
 262         h = rman_get_bushandle(sc->sc_resources.io_base[0]);
 263
 264         /* get signature bytes */
 265         b0 = bus_space_read_1(t, h, 0);
 266         b1 = bus_space_read_1(t, h, 1);
 267         b2 = bus_space_read_1(t, h, 2);
 268
 269         /* check signature bytes */
 270         if(b0 != 0x51)
 271         {
 272                 printf("isic%d: Error, signature 1 0x%x != 0x51 for Teles S0/16!\n",
 273                         unit, b0);
 274                 isic_detach_common(dev);
 275                 return(ENXIO);
 276         }
 277
 278         if(b1 != 0x93)
 279         {
 280                 printf("isic%d: Error, signature 2 0x%x != 0x93 for Teles S0/16!\n",
 281                         unit, b1);
 282                 isic_detach_common(dev);
 283                 return(ENXIO);
 284         }
 285
 286         if((b2 != 0x1e) && (b2 != 0x1f))
 287         {
 288                 printf("isic%d: Error, signature 3 0x%x != 0x1e or 0x1f for Teles S0/16!\n",
 289                         unit, b2);
 290                 isic_detach_common(dev);
 291                 return(ENXIO);
 292         }
 293
 294         /* get our irq */
 295
 296         if(!(sc->sc_resources.irq =
 297                         bus_alloc_resource(dev, SYS_RES_IRQ,
 298                                                 &sc->sc_resources.irq_rid,
 299                                                 0ul, ~0ul, 1, RF_ACTIVE)))
 300         {
 301                 printf("isic%d: Could not allocate irq for Teles S0/16.\n", unit);
 302                 isic_detach_common(dev);
 303                 return ENXIO;
 304         }
 305
 306         /* register interupt routine */
 307
 308         bus_setup_intr(dev, sc->sc_resources.irq,
 309                         INTR_TYPE_NET,
 310                         (void(*)(void *))(isicintr),
 311                         sc, &ih);
 312
 313         /* get the irq number */
 314
 315         sc->sc_irq = rman_get_start(sc->sc_resources.irq);
 316
 317         /* check IRQ validity */
 318
 319         if((intr_no[sc->sc_irq]) == 1)
 320         {
 321                 printf("isic%d: Error, invalid IRQ [%d] specified for Teles S0/16!\n",
 322                         unit, sc->sc_irq);
 323                 isic_detach_common(dev);
 324                 return(ENXIO);
 325         }
 326
 327         return (0);
 328 }
 329
 330 /*---------------------------------------------------------------------------*
 331  *      isic_attach_s016 - attach Teles S0/16 and compatibles
 332  *---------------------------------------------------------------------------*/
 333 int
 334 isic_attach_s016(device_t dev)
 335 {
 336         struct l1_softc *sc = &l1_sc[device_get_unit(dev)];
 337         u_long irq;
 338
 339         bus_space_tag_t    ta = rman_get_bustag(sc->sc_resources.mem);
 340         bus_space_handle_t ha = rman_get_bushandle(sc->sc_resources.mem);
 341         bus_space_tag_t    tb = rman_get_bustag(sc->sc_resources.io_base[0]);
 342         bus_space_handle_t hb = rman_get_bushandle(sc->sc_resources.io_base[0]);
 343
 344         /* is this right for FreeBSD or off by one ? */
 345         irq = intr_no[sc->sc_irq];
 346
 347         /* configure IRQ */
 348
 349         irq |= ((u_long) sc->sc_vmem_addr) >> 9;
 350
 351         DELAY(SEC_DELAY / 10);
 352         bus_space_write_1(tb, hb, 4, irq);
 353
 354         DELAY(SEC_DELAY / 10);
 355         bus_space_write_1(tb, hb, 4, irq | 0x01);
 356
 357         DELAY(SEC_DELAY / 5);
 358
 359         /* set card bit off */
 360
 361         bus_space_write_1(ta, ha, 0x80, 0);
 362         DELAY(SEC_DELAY / 5);
 363
 364         /* set card bit on */
 365
 366         bus_space_write_1(ta, ha, 0x80, 1);
 367         DELAY(SEC_DELAY / 5);
 368
 369         return 0;
 370 }
 371 #endif /* ISIC > 0 */