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1/*2 * Linux driver attachment glue for aic7770 based controllers.3 *4 * Copyright (c) 2000-2003 Adaptec Inc.5 * All rights reserved.6 *7 * Redistribution and use in source and binary forms, with or without8 * modification, are permitted provided that the following conditions9 * are met:10 * 1. Redistributions of source code must retain the above copyright11 * notice, this list of conditions, and the following disclaimer,12 * without modification.13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer14 * substantially similar to the "NO WARRANTY" disclaimer below15 * ("Disclaimer") and any redistribution must be conditioned upon16 * including a substantially similar Disclaimer requirement for further17 * binary redistribution.18 * 3. Neither the names of the above-listed copyright holders nor the names19 * of any contributors may be used to endorse or promote products derived20 * from this software without specific prior written permission.21 *22 * Alternatively, this software may be distributed under the terms of the23 * GNU General Public License ("GPL") version 2 as published by the Free24 * Software Foundation.25 *26 * NO WARRANTY27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS28 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR30 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT31 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,35 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING36 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE37 * POSSIBILITY OF SUCH DAMAGES.38 *39 * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7770_osm.c#14 $40 */41 42#include "aic7xxx_osm.h"43 44#include <linux/device.h>45#include <linux/eisa.h>46 47int48aic7770_map_registers(struct ahc_softc *ahc, u_int port)49{50 /*51 * Lock out other contenders for our i/o space.52 */53 if (!request_region(port, AHC_EISA_IOSIZE, "aic7xxx"))54 return (ENOMEM);55 ahc->tag = BUS_SPACE_PIO;56 ahc->bsh.ioport = port;57 return (0);58}59 60int61aic7770_map_int(struct ahc_softc *ahc, u_int irq)62{63 int error;64 int shared;65 66 shared = 0;67 if ((ahc->flags & AHC_EDGE_INTERRUPT) == 0)68 shared = IRQF_SHARED;69 70 error = request_irq(irq, ahc_linux_isr, shared, "aic7xxx", ahc);71 if (error == 0)72 ahc->platform_data->irq = irq;73 74 return (-error);75}76 77static int78aic7770_probe(struct device *dev)79{80 struct eisa_device *edev = to_eisa_device(dev);81 u_int eisaBase = edev->base_addr+AHC_EISA_SLOT_OFFSET;82 struct ahc_softc *ahc;83 char buf[80];84 char *name;85 int error;86 87 sprintf(buf, "ahc_eisa:%d", eisaBase >> 12);88 name = kstrdup(buf, GFP_ATOMIC);89 if (name == NULL)90 return -ENOMEM;91 ahc = ahc_alloc(&aic7xxx_driver_template, name);92 if (ahc == NULL)93 return -ENOMEM;94 ahc->dev = dev;95 error = aic7770_config(ahc, aic7770_ident_table + edev->id.driver_data,96 eisaBase);97 if (error != 0) {98 ahc->bsh.ioport = 0;99 ahc_free(ahc);100 return error < 0 ? error : -error;101 }102 103 dev_set_drvdata(dev, ahc);104 105 error = ahc_linux_register_host(ahc, &aic7xxx_driver_template);106 return (error);107}108 109static int110aic7770_remove(struct device *dev)111{112 struct ahc_softc *ahc = dev_get_drvdata(dev);113 u_long s;114 115 if (ahc->platform_data && ahc->platform_data->host)116 scsi_remove_host(ahc->platform_data->host);117 118 ahc_lock(ahc, &s);119 ahc_intr_enable(ahc, FALSE);120 ahc_unlock(ahc, &s);121 122 ahc_free(ahc);123 return 0;124}125 126static struct eisa_device_id aic7770_ids[] = {127 { "ADP7771", 0 }, /* AHA 274x */128 { "ADP7756", 1 }, /* AHA 284x BIOS enabled */129 { "ADP7757", 2 }, /* AHA 284x BIOS disabled */130 { "ADP7782", 3 }, /* AHA 274x Olivetti OEM */131 { "ADP7783", 4 }, /* AHA 274x Olivetti OEM (Differential) */132 { "ADP7770", 5 }, /* AIC7770 generic */133 { "" }134};135MODULE_DEVICE_TABLE(eisa, aic7770_ids);136 137static struct eisa_driver aic7770_driver = {138 .id_table = aic7770_ids,139 .driver = {140 .name = "aic7xxx",141 .probe = aic7770_probe,142 .remove = aic7770_remove,143 }144};145 146int147ahc_linux_eisa_init(void)148{149 return eisa_driver_register(&aic7770_driver);150}151 152void153ahc_linux_eisa_exit(void)154{155 eisa_driver_unregister(&aic7770_driver);156}157