sys/dev/raid/ida/ida_pci.c

   1 /*-
   2  * Copyright (c) 1999,2000 Jonathan Lemon
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD: src/sys/dev/ida/ida_pci.c,v 1.7.2.7 2001/07/30 20:29:58 jlemon Exp $
  27  * $DragonFly: src/sys/dev/raid/ida/ida_pci.c,v 1.6 2006/10/25 22:56:01 dillon Exp $
  28  */
  29
  30 #include <sys/param.h>
  31 #include <sys/systm.h>
  32 #include <sys/malloc.h>
  33 #include <sys/kernel.h>
  34
  35 #include <sys/buf.h>
  36 #include <sys/bus.h>
  37 #include <sys/devicestat.h>
  38 #include <sys/disk.h>
  39 #include <sys/rman.h>
  40
  41 #include <bus/pci/pcireg.h>
  42 #include <bus/pci/pcivar.h>
  43
  44 #include "idavar.h"
  45 #include "idareg.h"
  46
  47 #define IDA_PCI_MAX_DMA_ADDR    0xFFFFFFFF
  48 #define IDA_PCI_MAX_DMA_COUNT   0xFFFFFFFF
  49
  50 #define IDA_PCI_MEMADDR         (PCIR_MAPS + 4)         /* Mem I/O Address */
  51
  52 #define IDA_DEVICEID_SMART              0xAE100E11
  53 #define IDA_DEVICEID_DEC_SMART          0x00461011
  54 #define IDA_DEVICEID_NCR_53C1510        0x00101000
  55
  56 static int
  57 ida_v3_fifo_full(struct ida_softc *ida)
  58 {
  59         return (ida_inl(ida, R_CMD_FIFO) == 0);
  60 }
  61
  62 static void
  63 ida_v3_submit(struct ida_softc *ida, struct ida_qcb *qcb)
  64 {
  65         ida_outl(ida, R_CMD_FIFO, qcb->hwqcb_busaddr);
  66 }
  67
  68 static bus_addr_t
  69 ida_v3_done(struct ida_softc *ida)
  70 {
  71         return (ida_inl(ida, R_DONE_FIFO));
  72 }
  73
  74 static int
  75 ida_v3_int_pending(struct ida_softc *ida)
  76 {
  77         return (ida_inl(ida, R_INT_PENDING));
  78 }
  79
  80 static void
  81 ida_v3_int_enable(struct ida_softc *ida, int enable)
  82 {
  83         if (enable)
  84                 ida->flags |= IDA_INTERRUPTS;
  85         else
  86                 ida->flags &= ~IDA_INTERRUPTS;
  87         ida_outl(ida, R_INT_MASK, enable ? INT_ENABLE : INT_DISABLE);
  88 }
  89
  90 static int
  91 ida_v4_fifo_full(struct ida_softc *ida)
  92 {
  93         return (ida_inl(ida, R_42XX_REQUEST) != 0);
  94 }
  95
  96 static void
  97 ida_v4_submit(struct ida_softc *ida, struct ida_qcb *qcb)
  98 {
  99         ida_outl(ida, R_42XX_REQUEST, qcb->hwqcb_busaddr);
 100 }
 101
 102 static bus_addr_t
 103 ida_v4_done(struct ida_softc *ida)
 104 {
 105         bus_addr_t completed;
 106
 107         completed = ida_inl(ida, R_42XX_REPLY);
 108         if (completed == -1)
 109                 return (0);                     /* fifo is empty */
 110         ida_outl(ida, R_42XX_REPLY, 0);         /* confirm read */
 111         return (completed);
 112 }
 113
 114 static int
 115 ida_v4_int_pending(struct ida_softc *ida)
 116 {
 117         return (ida_inl(ida, R_42XX_STATUS) & STATUS_42XX_INT_PENDING);
 118 }
 119
 120 static void
 121 ida_v4_int_enable(struct ida_softc *ida, int enable)
 122 {
 123         if (enable)
 124                 ida->flags |= IDA_INTERRUPTS;
 125         else
 126                 ida->flags &= ~IDA_INTERRUPTS;
 127         ida_outl(ida, R_42XX_INT_MASK,
 128             enable ? INT_ENABLE_42XX : INT_DISABLE_42XX);
 129 }
 130
 131 static struct ida_access ida_v3_access = {
 132         ida_v3_fifo_full,
 133         ida_v3_submit,
 134         ida_v3_done,
 135         ida_v3_int_pending,
 136         ida_v3_int_enable,
 137 };
 138
 139 static struct ida_access ida_v4_access = {
 140         ida_v4_fifo_full,
 141         ida_v4_submit,
 142         ida_v4_done,
 143         ida_v4_int_pending,
 144         ida_v4_int_enable,
 145 };
 146
 147 static struct ida_board board_id[] = {
 148         { 0x40300E11, "Compaq SMART-2/P array controller",
 149             &ida_v3_access, 0 },
 150         { 0x40310E11, "Compaq SMART-2SL array controller",
 151             &ida_v3_access, 0 },
 152         { 0x40320E11, "Compaq Smart Array 3200 controller",
 153             &ida_v3_access, 0 },
 154         { 0x40330E11, "Compaq Smart Array 3100ES controller",
 155             &ida_v3_access, 0 },
 156         { 0x40340E11, "Compaq Smart Array 221 controller",
 157             &ida_v3_access, 0 },
 158
 159         { 0x40400E11, "Compaq Integrated Array controller",
 160             &ida_v4_access, IDA_FIRMWARE },
 161         { 0x40480E11, "Compaq RAID LC2 controller",
 162             &ida_v4_access, IDA_FIRMWARE },
 163         { 0x40500E11, "Compaq Smart Array 4200 controller",
 164             &ida_v4_access, 0 },
 165         { 0x40510E11, "Compaq Smart Array 4250ES controller",
 166             &ida_v4_access, 0 },
 167         { 0x40580E11, "Compaq Smart Array 431 controller",
 168             &ida_v4_access, 0 },
 169
 170         { 0, "", 0, 0 },
 171 };
 172
 173 static int ida_pci_probe(device_t dev);
 174 static int ida_pci_attach(device_t dev);
 175
 176 static device_method_t ida_pci_methods[] = {
 177         DEVMETHOD(device_probe,         ida_pci_probe),
 178         DEVMETHOD(device_attach,        ida_pci_attach),
 179         DEVMETHOD(device_detach,        ida_detach),
 180
 181         DEVMETHOD(bus_print_child,      bus_generic_print_child),
 182
 183         { 0, 0 }
 184 };
 185
 186 static driver_t ida_pci_driver = {
 187         "ida",
 188         ida_pci_methods,
 189         sizeof(struct ida_softc)
 190 };
 191
 192 static devclass_t ida_devclass;
 193
 194 static struct ida_board *
 195 ida_pci_match(device_t dev)
 196 {
 197         int i;
 198         u_int32_t id, sub_id;
 199
 200         id = pci_get_devid(dev);
 201         sub_id = pci_get_subdevice(dev) << 16 | pci_get_subvendor(dev);
 202
 203         if (id == IDA_DEVICEID_SMART ||
 204             id == IDA_DEVICEID_DEC_SMART ||
 205             id == IDA_DEVICEID_NCR_53C1510) {
 206                 for (i = 0; board_id[i].board; i++)
 207                         if (board_id[i].board == sub_id)
 208                                 return (&board_id[i]);
 209         }
 210         return (NULL);
 211 }
 212
 213 static int
 214 ida_pci_probe(device_t dev)
 215 {
 216         struct ida_board *board = ida_pci_match(dev);
 217
 218         if (board != NULL) {
 219                 device_set_desc(dev, board->desc);
 220                 return (0);
 221         }
 222         return (ENXIO);
 223 }
 224
 225 static int
 226 ida_pci_attach(device_t dev)
 227 {
 228         struct ida_board *board = ida_pci_match(dev);
 229         u_int32_t id = pci_get_devid(dev);
 230         struct ida_softc *ida;
 231         u_int command;
 232         int error, rid;
 233
 234         command = pci_read_config(dev, PCIR_COMMAND, 1);
 235
 236         /*
 237          * it appears that this board only does MEMIO access.
 238          */
 239         if ((command & PCIM_CMD_MEMEN) == 0) {
 240                 device_printf(dev, "Only memory mapped I/O is supported\n");
 241                 return (ENXIO);
 242         }
 243
 244         ida = (struct ida_softc *)device_get_softc(dev);
 245         ida->dev = dev;
 246         ida->cmd = *board->accessor;
 247         ida->flags = board->flags;
 248
 249         ida->regs_res_type = SYS_RES_MEMORY;
 250         ida->regs_res_id = IDA_PCI_MEMADDR;
 251         if (id == IDA_DEVICEID_DEC_SMART)
 252                 ida->regs_res_id = PCIR_MAPS;
 253
 254         ida->regs = bus_alloc_resource(dev, ida->regs_res_type,
 255             &ida->regs_res_id, 0, ~0, 1, RF_ACTIVE);
 256         if (ida->regs == NULL) {
 257                 device_printf(dev, "can't allocate memory resources\n");
 258                 return (ENOMEM);
 259         }
 260
 261         error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1,
 262             /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
 263             /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL,
 264             /*maxsize*/MAXBSIZE, /*nsegments*/IDA_NSEG,
 265             /*maxsegsize*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/BUS_DMA_ALLOCNOW,
 266             &ida->parent_dmat);
 267         if (error != 0) {
 268                 device_printf(dev, "can't allocate DMA tag\n");
 269                 ida_free(ida);
 270                 return (ENOMEM);
 271         }
 272
 273         rid = 0;
 274         ida->irq_res_type = SYS_RES_IRQ;
 275         ida->irq = bus_alloc_resource(dev, ida->irq_res_type, &rid,
 276             0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
 277         if (ida->irq == NULL) {
 278                 ida_free(ida);
 279                 return (ENOMEM);
 280         }
 281         error = bus_setup_intr(dev, ida->irq, 0,
 282                                ida_intr, ida, &ida->ih, NULL);
 283         if (error) {
 284                 device_printf(dev, "can't setup interrupt\n");
 285                 ida_free(ida);
 286                 return (ENOMEM);
 287         }
 288
 289         error = ida_init(ida);
 290         if (error) {
 291                 ida_free(ida);
 292                 return (error);
 293         }
 294         ida_attach(ida);
 295         ida->flags |= IDA_ATTACHED;
 296
 297         return (0);
 298 }
 299
 300 DRIVER_MODULE(ida, pci, ida_pci_driver, ida_devclass, 0, 0);