sys/net/i4b/layer1/isic/i4b_tel_s08.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 S0/8 and clones
  38  *      ================================================================
  39  *
  40  * $FreeBSD: src/sys/i4b/layer1/isic/i4b_tel_s08.c,v 1.5.2.1 2001/08/10 14:08:39 obrien Exp $
  41  * $DragonFly: src/sys/net/i4b/layer1/isic/i4b_tel_s08.c,v 1.5 2005/05/24 20:59:05 dillon Exp $
  42  *
  43  *      last edit-date: [Wed Jan 24 09:27:58 2001]
  44  *
  45  *---------------------------------------------------------------------------*/
  46
  47 #include "use_isic.h"
  48 #include "opt_i4b.h"
  49
  50 #if NISIC > 0 && defined(TEL_S0_8)
  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_S08_MEMSIZE 0x1000
  66
  67 static const bus_size_t offset[] = { 0x100, 0x180, 0x1c0 };
  68
  69 /*---------------------------------------------------------------------------*
  70  *      Teles S0/8 write register routine
  71  *---------------------------------------------------------------------------*/
  72 static void
  73 tels08_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 S0/8 read register routine
  88  *---------------------------------------------------------------------------*/
  89 static u_int8_t
  90 tels08_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 S0/8 fifo write access
 105  *---------------------------------------------------------------------------*/
 106 static void
 107 tels08_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 S0/8 fifo read access
 116  *---------------------------------------------------------------------------*/
 117 static void
 118 tels08_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_s08 - probe for Teles S0/8 and compatibles
 127  *---------------------------------------------------------------------------*/
 128 int
 129 isic_probe_s08(device_t dev)
 130 {
 131         size_t unit = device_get_unit(dev);     /* get unit */
 132         struct l1_softc *sc = 0;                /* pointer to softc */
 133         void *ih = 0;                           /* dummy */
 134
 135         /* check max unit range */
 136
 137         if(unit >= ISIC_MAXUNIT)
 138         {
 139                 printf("isic%d: Error, unit %d >= ISIC_MAXUNIT for Teles S0/8!\n",
 140                                 unit, unit);
 141                 return(ENXIO);
 142         }
 143
 144         sc = &l1_sc[unit];              /* get pointer to softc */
 145         sc->sc_unit = unit;             /* set unit */
 146
 147         /* see if an io base was supplied */
 148
 149         if((sc->sc_resources.io_base[0] =
 150                         bus_alloc_resource(dev, SYS_RES_IOPORT,
 151                                            &sc->sc_resources.io_rid[0],
 152                                            0ul, ~0ul, 1, RF_ACTIVE)))
 153         {
 154                 /* the S0/8 is completely memory mapped ! */
 155
 156                 bus_release_resource(dev,SYS_RES_IOPORT,
 157                                      sc->sc_resources.io_rid[0],
 158                                      sc->sc_resources.io_base[0]);
 159                 printf("isic%d: Error, iobase specified for Teles S0/8!\n", unit);
 160                 return(ENXIO);
 161         }
 162
 163         /* allocate memory */
 164
 165         if(!(sc->sc_resources.mem =
 166                 bus_alloc_resource(dev, SYS_RES_MEMORY,
 167                                 &sc->sc_resources.mem_rid,
 168                                 0ul, ~0ul, TELES_S08_MEMSIZE, RF_ACTIVE)))
 169         {
 170                 printf("isic%d: Could not allocate memory for Teles S0/8!\n", unit);
 171                 return(ENXIO);
 172         }
 173
 174         /*
 175          * get virtual addr. it's just needed to see if it is in
 176          * the valid range
 177          */
 178
 179         sc->sc_vmem_addr = rman_get_virtual(sc->sc_resources.mem);
 180
 181         /* check if inside memory range of 0xA0000 .. 0xDF000 */
 182
 183         if((kvtop(sc->sc_vmem_addr) < 0xa0000) ||
 184            (kvtop(sc->sc_vmem_addr) > 0xdf000))
 185         {
 186                 printf("isic%d: Error, mem addr 0x%llx outside 0xA0000-0xDF000 for Teles S0/8!\n",
 187                                 unit, kvtop(sc->sc_vmem_addr));
 188                 bus_release_resource(dev,SYS_RES_MEMORY,
 189                                      sc->sc_resources.mem_rid,
 190                                      sc->sc_resources.mem);
 191                 sc->sc_resources.mem = 0;
 192                 return(ENXIO);
 193         }
 194
 195         /* setup ISAC access routines */
 196
 197         sc->clearirq = NULL;
 198
 199         sc->readreg = tels08_read_reg;
 200         sc->writereg = tels08_write_reg;
 201
 202         sc->readfifo = tels08_read_fifo;
 203         sc->writefifo = tels08_write_fifo;
 204
 205         sc->sc_cardtyp = CARD_TYPEP_8;          /* setup card type */
 206
 207         sc->sc_bustyp = BUS_TYPE_IOM1;          /* setup IOM bus type */
 208
 209         sc->sc_ipac = 0;
 210         sc->sc_bfifolen = HSCX_FIFO_LEN;
 211
 212         /* setup ISAC base addr, though we don't really need it */
 213
 214         ISAC_BASE = (caddr_t)((sc->sc_vmem_addr) + 0x100);
 215
 216         /* setup HSCX base addr */
 217
 218         HSCX_A_BASE = (caddr_t)((sc->sc_vmem_addr) + 0x180);
 219         HSCX_B_BASE = (caddr_t)((sc->sc_vmem_addr) + 0x1c0);
 220
 221         /* allocate our irq */
 222
 223         if(!(sc->sc_resources.irq =
 224                         bus_alloc_resource(dev, SYS_RES_IRQ,
 225                                                 &sc->sc_resources.irq_rid,
 226                                                 0ul, ~0ul, 1, RF_ACTIVE)))
 227         {
 228                 printf("isic%d: Could not allocate irq for Teles S0/8!\n",unit);
 229
 230                 bus_release_resource(dev,SYS_RES_MEMORY,
 231                                      sc->sc_resources.mem_rid,
 232                                      sc->sc_resources.mem);
 233
 234                 sc->sc_resources.mem = 0;
 235                 return ENXIO;
 236         }
 237
 238         /* get the irq number */
 239
 240         sc->sc_irq = rman_get_start(sc->sc_resources.irq);
 241
 242         /* check IRQ validity */
 243
 244         switch(sc->sc_irq)
 245         {
 246                 case 2:
 247                 case 9:         /* XXX */
 248                 case 3:
 249                 case 4:
 250                 case 5:
 251                 case 6:
 252                 case 7:
 253                         break;
 254
 255                 default:
 256                         printf("isic%d: Error, invalid IRQ [%d] specified for Teles S0/8!\n",
 257                                 unit, sc->sc_irq);
 258                         bus_release_resource(dev,SYS_RES_IRQ,
 259                                              sc->sc_resources.irq_rid,
 260                                              sc->sc_resources.irq);
 261                         sc->sc_resources.irq = 0;
 262                         bus_release_resource(dev,SYS_RES_MEMORY,
 263                                              sc->sc_resources.mem_rid,
 264                                              sc->sc_resources.mem);
 265                         sc->sc_resources.mem = 0;
 266                         return(ENXIO);
 267                         break;
 268         }
 269
 270         /* register interupt routine */
 271
 272         bus_setup_intr(dev, sc->sc_resources.irq,
 273                         INTR_TYPE_NET,
 274                         (void(*)(void *))(isicintr),
 275                         sc, &ih, NULL);
 276
 277         return (0);
 278 }
 279
 280 /*---------------------------------------------------------------------------*
 281  *      isic_attach_s08 - attach Teles S0/8 and compatibles
 282  *---------------------------------------------------------------------------*/
 283 int
 284 isic_attach_s08(device_t dev)
 285 {
 286         struct l1_softc *sc = &l1_sc[device_get_unit(dev)];
 287         bus_space_tag_t t = rman_get_bustag(sc->sc_resources.mem);
 288         bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.mem);
 289
 290         /* set card off */
 291
 292         bus_space_write_1(t, h, 0x80, 0);
 293
 294         DELAY(SEC_DELAY / 5);
 295
 296         /* set card on */
 297
 298         bus_space_write_1(t, h, 0x80, 1);
 299
 300         DELAY(SEC_DELAY / 5);
 301
 302         return 0;
 303 }
 304 #endif /* ISIC > 0 */