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 without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions, and the following disclaimer, 12 * without modification. 13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 14 * substantially similar to the "NO WARRANTY" disclaimer below 15 * ("Disclaimer") and any redistribution must be conditioned upon 16 * including a substantially similar Disclaimer requirement for further 17 * binary redistribution. 18 * 3. Neither the names of the above-listed copyright holders nor the names 19 * of any contributors may be used to endorse or promote products derived 20 * from this software without specific prior written permission. 21 * 22 * Alternatively, this software may be distributed under the terms of the 23 * GNU General Public License ("GPL") version 2 as published by the Free 24 * Software Foundation. 25 * 26 * NO WARRANTY 27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 28 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 30 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 31 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * 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) ARISING 36 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * 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 47 int 48 aic7770_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 60 int 61 aic7770_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 77 static int 78 aic7770_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 } 108 109 static int 110 aic7770_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 } 125 126 static 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 }; 135 MODULE_DEVICE_TABLE(eisa, aic7770_ids); 136 137 static 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 }; 145 146 int 147 ahc_linux_eisa_init(void) 148 { 149 return eisa_driver_register(&aic7770_driver); 150 } 151 152 void 153 ahc_linux_eisa_exit(void) 154 { 155 eisa_driver_unregister(&aic7770_driver); 156 } 157