sys/dev/ct/ct_isa.c

   1 /*      $NecBSD: ct_isa.c,v 1.6 1999/07/26 06:32:01 honda Exp $ */
   2
   3 #include <sys/cdefs.h>
   4 __FBSDID("$FreeBSD$");
   5 /*      $NetBSD$        */
   6
   7 /*-
   8  * [NetBSD for NEC PC-98 series]
   9  *  Copyright (c) 1995, 1996, 1997, 1998
  10  *      NetBSD/pc98 porting staff. All rights reserved.
  11  *
  12  *  Redistribution and use in source and binary forms, with or without
  13  *  modification, are permitted provided that the following conditions
  14  *  are met:
  15  *  1. Redistributions of source code must retain the above copyright
  16  *     notice, this list of conditions and the following disclaimer.
  17  *  2. Redistributions in binary form must reproduce the above copyright
  18  *     notice, this list of conditions and the following disclaimer in the
  19  *     documentation and/or other materials provided with the distribution.
  20  *  3. The name of the author may not be used to endorse or promote products
  21  *     derived from this software without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  25  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  26  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
  27  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  28  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  29  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  31  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  32  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  33  * POSSIBILITY OF SUCH DAMAGE.
  34  */
  35
  36 #define SCSIBUS_RESCAN
  37
  38 #include <sys/param.h>
  39 #include <sys/systm.h>
  40 #include <sys/kernel.h>
  41 #include <sys/bio.h>
  42 #include <sys/buf.h>
  43 #include <sys/queue.h>
  44 #include <sys/malloc.h>
  45 #include <sys/device_port.h>
  46 #include <sys/errno.h>
  47
  48 #include <vm/vm.h>
  49
  50 #ifdef __NetBSD__
  51 #include <machine/bus.h>
  52 #include <machine/intr.h>
  53
  54 #include <dev/scsipi/scsi_all.h>
  55 #include <dev/scsipi/scsipi_all.h>
  56 #include <dev/scsipi/scsiconf.h>
  57 #include <dev/scsipi/scsi_disk.h>
  58
  59 #include <dev/isa/isareg.h>
  60 #include <dev/isa/isavar.h>
  61 #include <dev/isa/isadmavar.h>
  62
  63 #include <machine/dvcfg.h>
  64 #include <machine/physio_proc.h>
  65 #include <machine/syspmgr.h>
  66
  67 #include <i386/Cbus/dev/scsi_low.h>
  68
  69 #include <dev/ic/wd33c93reg.h>
  70 #include <i386/Cbus/dev/ct/ctvar.h>
  71 #include <i386/Cbus/dev/ct/bshwvar.h>
  72 #endif /* __NetBSD__ */
  73
  74 #ifdef __FreeBSD__
  75 #include <machine/bus.h>
  76 #include <machine/resource.h>
  77 #include <sys/bus.h>
  78 #include <sys/rman.h>
  79 #include <machine/md_var.h>
  80
  81 #include <pc98/cbus/cbus.h>
  82 #include <isa/isavar.h>
  83
  84 #include <compat/netbsd/dvcfg.h>
  85 #include <compat/netbsd/physio_proc.h>
  86
  87 #include <cam/scsi/scsi_low.h>
  88
  89 #include <dev/ic/wd33c93reg.h>
  90 #include <dev/ct/ctvar.h>
  91 #include <dev/ct/bshwvar.h>
  92 #endif /* __FreeBSD__ */
  93
  94 #define BSHW_IOSZ       0x08
  95 #define BSHW_IOBASE     0xcc0
  96 #define BSHW_MEMSZ      (PAGE_SIZE * 2)
  97
  98 static int ct_isa_match(device_t);
  99 static int ct_isa_attach(device_t);
 100 static int ct_space_map(device_t, struct bshw *,
 101                         struct resource **, struct resource **);
 102 static void ct_space_unmap(device_t, struct ct_softc *);
 103 static struct bshw *ct_find_hw(device_t);
 104 static void ct_dmamap(void *, bus_dma_segment_t *, int, int);
 105 static void ct_isa_bus_access_weight(struct ct_bus_access_handle *);
 106 static void ct_isa_dmasync_before(struct ct_softc *);
 107 static void ct_isa_dmasync_after(struct ct_softc *);
 108
 109 struct ct_isa_softc {
 110         struct ct_softc sc_ct;
 111         struct bshw_softc sc_bshw;
 112 };
 113
 114 static struct isa_pnp_id ct_pnp_ids[] = {
 115         { 0x0100e7b1,   "Logitec LHA-301" },
 116         { 0x110154dc,   "I-O DATA SC-98III" },
 117         { 0x4120acb4,   "MELCO IFC-NN" },
 118         { 0,            NULL }
 119 };
 120
 121 static device_method_t ct_isa_methods[] = {
 122         /* Device interface */
 123         DEVMETHOD(device_probe,         ct_isa_match),
 124         DEVMETHOD(device_attach,        ct_isa_attach),
 125         { 0, 0 }
 126 };
 127
 128 static driver_t ct_isa_driver = {
 129         "ct", ct_isa_methods, sizeof(struct ct_isa_softc),
 130 };
 131
 132 static devclass_t ct_devclass;
 133
 134 DRIVER_MODULE(ct, isa, ct_isa_driver, ct_devclass, 0, 0);
 135
 136 static int
 137 ct_isa_match(device_t dev)
 138 {
 139         struct bshw *hw;
 140         struct resource *port_res, *mem_res;
 141         struct ct_bus_access_handle ch;
 142         int rv;
 143
 144         if (ISA_PNP_PROBE(device_get_parent(dev), dev, ct_pnp_ids) == ENXIO)
 145                 return ENXIO;
 146
 147         switch (isa_get_logicalid(dev)) {
 148         case 0x0100e7b1:        /* LHA-301 */
 149         case 0x110154dc:        /* SC-98III */
 150         case 0x4120acb4:        /* IFC-NN */
 151                 /* XXX - force to SMIT mode */
 152                 device_set_flags(dev, device_get_flags(dev) | 0x40000);
 153                 break;
 154         }
 155
 156         if (isa_get_port(dev) == -1)
 157                 bus_set_resource(dev, SYS_RES_IOPORT, 0,
 158                                  BSHW_IOBASE, BSHW_IOSZ);
 159
 160         if ((hw = ct_find_hw(dev)) == NULL)
 161                 return ENXIO;
 162         if (ct_space_map(dev, hw, &port_res, &mem_res) != 0)
 163                 return ENXIO;
 164
 165         bzero(&ch, sizeof(ch));
 166         ch.ch_iot = rman_get_bustag(port_res);
 167         ch.ch_ioh = rman_get_bushandle(port_res),
 168         ch.ch_bus_weight = ct_isa_bus_access_weight;
 169
 170         rv = ctprobesubr(&ch, 0, BSHW_DEFAULT_HOSTID,
 171                          BSHW_DEFAULT_CHIPCLK, NULL);
 172         if (rv != 0)
 173         {
 174                 struct bshw_softc bshw_tab;
 175                 struct bshw_softc *bs = &bshw_tab;
 176
 177                 memset(bs, 0, sizeof(*bs));
 178                 bshw_read_settings(&ch, bs);
 179                 bus_set_resource(dev, SYS_RES_IRQ, 0, bs->sc_irq, 1);
 180                 bus_set_resource(dev, SYS_RES_DRQ, 0, bs->sc_drq, 1);
 181         }
 182
 183         bus_release_resource(dev, SYS_RES_IOPORT, 0, port_res);
 184         if (mem_res != NULL)
 185                 bus_release_resource(dev, SYS_RES_MEMORY, 0, mem_res);
 186
 187         if (rv != 0)
 188                 return 0;
 189         return ENXIO;
 190 }
 191
 192 static int
 193 ct_isa_attach(device_t dev)
 194 {
 195         struct ct_isa_softc *pct = device_get_softc(dev);
 196         struct ct_softc *ct = &pct->sc_ct;
 197         struct ct_bus_access_handle *chp = &ct->sc_ch;
 198         struct scsi_low_softc *slp = &ct->sc_sclow;
 199         struct bshw_softc *bs = &pct->sc_bshw;
 200         struct bshw *hw;
 201         int irq_rid, drq_rid, chiprev;
 202         u_int8_t *vaddr;
 203         bus_addr_t addr;
 204         intrmask_t s;
 205
 206         hw = ct_find_hw(dev);
 207         if (ct_space_map(dev, hw, &ct->port_res, &ct->mem_res) != 0) {
 208                 device_printf(dev, "bus io mem map failed\n");
 209                 return ENXIO;
 210         }
 211
 212         bzero(chp, sizeof(*chp));
 213         chp->ch_iot = rman_get_bustag(ct->port_res);
 214         chp->ch_ioh = rman_get_bushandle(ct->port_res);
 215         if (ct->mem_res) {
 216                 chp->ch_memt = rman_get_bustag(ct->mem_res);
 217                 chp->ch_memh = rman_get_bushandle(ct->mem_res);
 218         }
 219         chp->ch_bus_weight = ct_isa_bus_access_weight;
 220
 221         irq_rid = 0;
 222         ct->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &irq_rid,
 223                                              RF_ACTIVE);
 224         drq_rid = 0;
 225         ct->drq_res = bus_alloc_resource_any(dev, SYS_RES_DRQ, &drq_rid,
 226                                              RF_ACTIVE);
 227         if (ct->irq_res == NULL || ct->drq_res == NULL) {
 228                 ct_space_unmap(dev, ct);
 229                 return ENXIO;
 230         }
 231
 232         if (ctprobesubr(chp, 0, BSHW_DEFAULT_HOSTID,
 233                         BSHW_DEFAULT_CHIPCLK, &chiprev) == 0)
 234         {
 235                 device_printf(dev, "hardware missing\n");
 236                 ct_space_unmap(dev, ct);
 237                 return ENXIO;
 238         }
 239
 240         /* setup DMA map */
 241         if (bus_dma_tag_create(NULL, 1, 0,
 242                                BUS_SPACE_MAXADDR_24BIT, BUS_SPACE_MAXADDR,
 243                                NULL, NULL, MAXBSIZE, 1,
 244                                BUS_SPACE_MAXSIZE_32BIT,
 245                                BUS_DMA_ALLOCNOW, NULL, NULL,
 246                                &ct->sc_dmat) != 0) {
 247                 device_printf(dev, "can't set up ISA DMA map\n");
 248                 ct_space_unmap(dev, ct);
 249                 return ENXIO;
 250         }
 251
 252         if (bus_dmamem_alloc(ct->sc_dmat, (void **)&vaddr, BUS_DMA_NOWAIT,
 253                              &ct->sc_dmamapt) != 0) {
 254                 device_printf(dev, "can't set up ISA DMA map\n");
 255                 ct_space_unmap(dev, ct);
 256                 return ENXIO;
 257         }
 258
 259         bus_dmamap_load(ct->sc_dmat, ct->sc_dmamapt, vaddr, MAXBSIZE,
 260                         ct_dmamap, &addr, BUS_DMA_NOWAIT);
 261
 262         /* setup machdep softc */
 263         bs->sc_hw = hw;
 264         bs->sc_io_control = 0;
 265         bs->sc_bounce_phys = (u_int8_t *)addr;
 266         bs->sc_bounce_addr = vaddr;
 267         bs->sc_bounce_size = MAXBSIZE;
 268         bs->sc_minphys = (1 << 24);
 269         bs->sc_dmasync_before = ct_isa_dmasync_before;
 270         bs->sc_dmasync_after = ct_isa_dmasync_after;
 271         bshw_read_settings(chp, bs);
 272
 273         /* setup ct driver softc */
 274         ct->ct_hw = bs;
 275         ct->ct_dma_xfer_start = bshw_dma_xfer_start;
 276         ct->ct_pio_xfer_start = bshw_smit_xfer_start;
 277         ct->ct_dma_xfer_stop = bshw_dma_xfer_stop;
 278         ct->ct_pio_xfer_stop = bshw_smit_xfer_stop;
 279         ct->ct_bus_reset = bshw_bus_reset;
 280         ct->ct_synch_setup = bshw_synch_setup;
 281
 282         ct->sc_xmode = CT_XMODE_DMA;
 283         if (chp->ch_memh != NULL)
 284                 ct->sc_xmode |= CT_XMODE_PIO;
 285
 286         ct->sc_chiprev = chiprev;
 287         switch (chiprev)
 288         {
 289         case CT_WD33C93:
 290                 /* s = "WD33C93"; */
 291                 ct->sc_chipclk = 8;
 292                 break;
 293         case CT_WD33C93_A:
 294                 if (DVCFG_MAJOR(device_get_flags(dev)) > 0)
 295                 {
 296                         /* s = "AM33C93_A"; */
 297                         ct->sc_chipclk = 20;
 298                         ct->sc_chiprev = CT_AM33C93_A;
 299                 }
 300                 else
 301                 {
 302                         /* s = "WD33C93_A"; */
 303                         ct->sc_chipclk = 10;
 304                 }
 305                 break;
 306
 307         case CT_AM33C93_A:
 308                 /* s = "AM33C93_A"; */
 309                 ct->sc_chipclk = 20;
 310                 break;
 311
 312         default:
 313         case CT_WD33C93_B:
 314                 /* s = "WD33C93_B"; */
 315                 ct->sc_chipclk = 20;
 316                 break;
 317         }
 318 #if     0
 319         printf("%s: chiprev %s chipclk %d MHz\n",
 320                 slp->sl_dev.dv_xname, s, ct->sc_chipclk);
 321 #endif
 322
 323         slp->sl_dev = dev;
 324         slp->sl_hostid = bs->sc_hostid;
 325         slp->sl_irq = isa_get_irq(dev);
 326         slp->sl_cfgflags = device_get_flags(dev);
 327
 328         s = splcam();
 329         ctattachsubr(ct);
 330         splx(s);
 331
 332         if (bus_setup_intr(dev, ct->irq_res, INTR_TYPE_CAM,
 333                            NULL, (driver_intr_t *)ctintr, ct, &ct->sc_ih)) {
 334                 ct_space_unmap(dev, ct);
 335                 return ENXIO;
 336         }
 337
 338         return 0;
 339 }
 340
 341 static struct bshw *
 342 ct_find_hw(device_t dev)
 343 {
 344         return DVCFG_HW(&bshw_hwsel, DVCFG_MAJOR(device_get_flags(dev)));
 345 }
 346
 347 static int
 348 ct_space_map(device_t dev, struct bshw *hw,
 349              struct resource **iohp, struct resource **memhp)
 350 {
 351         int port_rid, mem_rid;
 352
 353         *memhp = NULL;
 354
 355         port_rid = 0;
 356         *iohp = bus_alloc_resource(dev, SYS_RES_IOPORT, &port_rid, 0, ~0,
 357                                    BSHW_IOSZ, RF_ACTIVE);
 358         if (*iohp == NULL)
 359                 return ENXIO;
 360
 361         if ((hw->hw_flags & BSHW_SMFIFO) == 0 || isa_get_maddr(dev) == -1)
 362                 return 0;
 363
 364         mem_rid = 0;
 365         *memhp = bus_alloc_resource(dev, SYS_RES_MEMORY, &mem_rid, 0, ~0,
 366                                     BSHW_MEMSZ, RF_ACTIVE);
 367         if (*memhp == NULL) {
 368                 bus_release_resource(dev, SYS_RES_IOPORT, port_rid, *iohp);
 369                 return ENXIO;
 370         }
 371
 372         return 0;
 373 }
 374
 375 static void
 376 ct_space_unmap(device_t dev, struct ct_softc *ct)
 377 {
 378         if (ct->port_res != NULL)
 379                 bus_release_resource(dev, SYS_RES_IOPORT, 0, ct->port_res);
 380         if (ct->mem_res != NULL)
 381                 bus_release_resource(dev, SYS_RES_MEMORY, 0, ct->mem_res);
 382         if (ct->irq_res != NULL)
 383                 bus_release_resource(dev, SYS_RES_IRQ, 0, ct->irq_res);
 384         if (ct->drq_res != NULL)
 385                 bus_release_resource(dev, SYS_RES_DRQ, 0, ct->drq_res);
 386 }
 387
 388 static void
 389 ct_dmamap(void *arg, bus_dma_segment_t *seg, int nseg, int error)
 390 {
 391         bus_addr_t *addr = (bus_addr_t *)arg;
 392
 393         *addr = seg->ds_addr;
 394 }
 395
 396 static void
 397 ct_isa_bus_access_weight(struct ct_bus_access_handle *chp)
 398 {
 399
 400         outb(0x5f, 0);
 401 }
 402
 403 static void
 404 ct_isa_dmasync_before(struct ct_softc *ct)
 405 {
 406
 407         if (need_pre_dma_flush)
 408                 wbinvd();
 409 }
 410
 411 static void
 412 ct_isa_dmasync_after(struct ct_softc *ct)
 413 {
 414
 415         if (need_post_dma_flush)
 416                 invd();
 417 }