| /* |
| * Linux driver attachment glue for aic7770 based controllers. |
| * |
| * Copyright (c) 2000-2001 Adaptec Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions, and the following disclaimer, |
| * without modification. |
| * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| * substantially similar to the "NO WARRANTY" disclaimer below |
| * ("Disclaimer") and any redistribution must be conditioned upon |
| * including a substantially similar Disclaimer requirement for further |
| * binary redistribution. |
| * 3. Neither the names of the above-listed copyright holders nor the names |
| * of any contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * Alternatively, this software may be distributed under the terms of the |
| * GNU General Public License ("GPL") version 2 as published by the Free |
| * Software Foundation. |
| * |
| * NO WARRANTY |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGES. |
| * |
| * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7770_osm.c#13 $ |
| */ |
| |
| #include "aic7xxx_osm.h" |
| |
| #define MINSLOT 1 |
| #define NUMSLOTS 16 |
| #define IDOFFSET 0x80 |
| |
| int |
| aic7770_linux_probe(Scsi_Host_Template *template) |
| { |
| #if defined(__i386__) || defined(__alpha__) |
| struct aic7770_identity *entry; |
| struct ahc_softc *ahc; |
| int i, slot; |
| int eisaBase; |
| int found; |
| |
| eisaBase = 0x1000 + AHC_EISA_SLOT_OFFSET; |
| found = 0; |
| for (slot = 1; slot < NUMSLOTS; eisaBase+=0x1000, slot++) { |
| uint32_t eisa_id; |
| size_t id_size; |
| |
| #if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0) |
| if (check_region(eisaBase, AHC_EISA_IOSIZE) != 0) |
| continue; |
| request_region(eisaBase, AHC_EISA_IOSIZE, "aic7xxx"); |
| #else |
| if (request_region(eisaBase, AHC_EISA_IOSIZE, "aic7xxx") == 0) |
| continue; |
| #endif |
| |
| eisa_id = 0; |
| id_size = sizeof(eisa_id); |
| for (i = 0; i < 4; i++) { |
| /* VLcards require priming*/ |
| outb(0x80 + i, eisaBase + IDOFFSET); |
| eisa_id |= inb(eisaBase + IDOFFSET + i) |
| << ((id_size-i-1) * 8); |
| } |
| release_region(eisaBase, AHC_EISA_IOSIZE); |
| if (eisa_id & 0x80000000) |
| continue; /* no EISA card in slot */ |
| |
| entry = aic7770_find_device(eisa_id); |
| if (entry != NULL) { |
| char buf[80]; |
| char *name; |
| int error; |
| |
| /* |
| * Allocate a softc for this card and |
| * set it up for attachment by our |
| * common detect routine. |
| */ |
| sprintf(buf, "ahc_eisa:%d", slot); |
| name = malloc(strlen(buf) + 1, M_DEVBUF, M_NOWAIT); |
| if (name == NULL) |
| break; |
| strcpy(name, buf); |
| ahc = ahc_alloc(template, name); |
| if (ahc == NULL) { |
| /* |
| * If we can't allocate this one, |
| * chances are we won't be able to |
| * allocate future card structures. |
| */ |
| break; |
| } |
| error = aic7770_config(ahc, entry, eisaBase); |
| if (error != 0) { |
| ahc->bsh.ioport = 0; |
| ahc_free(ahc); |
| continue; |
| } |
| found++; |
| } |
| } |
| return (found); |
| #else |
| return (0); |
| #endif |
| } |
| |
| int |
| aic7770_map_registers(struct ahc_softc *ahc, u_int port) |
| { |
| /* |
| * Lock out other contenders for our i/o space. |
| */ |
| #if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0) |
| request_region(port, AHC_EISA_IOSIZE, "aic7xxx"); |
| #else |
| if (request_region(port, AHC_EISA_IOSIZE, "aic7xxx") == 0) |
| return (ENOMEM); |
| #endif |
| ahc->tag = BUS_SPACE_PIO; |
| ahc->bsh.ioport = port; |
| return (0); |
| } |
| |
| int |
| aic7770_map_int(struct ahc_softc *ahc, u_int irq) |
| { |
| int error; |
| int shared; |
| |
| shared = 0; |
| if ((ahc->flags & AHC_EDGE_INTERRUPT) == 0) |
| shared = SA_SHIRQ; |
| |
| error = request_irq(irq, ahc_linux_isr, shared, "aic7xxx", ahc); |
| if (error == 0) |
| ahc->platform_data->irq = irq; |
| |
| return (-error); |
| } |