1 /* 2 * Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux. 3 * Amiga MacroSystemUS WarpEngine SCSI controller. 4 * Amiga Technologies/DKB A4091 SCSI controller. 5 * 6 * Written 1997 by Alan Hourihane <alanh@fairlite.demon.co.uk> 7 * plus modifications of the 53c7xx.c driver to support the Amiga. 8 * 9 * Rewritten to use 53c700.c by Kars de Jong <jongk@linux-m68k.org> 10 */ 11 12 #include <linux/module.h> 13 #include <linux/init.h> 14 #include <linux/interrupt.h> 15 #include <linux/zorro.h> 16 #include <asm/amigaints.h> 17 #include <scsi/scsi_host.h> 18 #include <scsi/scsi_transport_spi.h> 19 20 #include "53c700.h" 21 22 MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / Kars de Jong <jongk@linux-m68k.org>"); 23 MODULE_DESCRIPTION("Amiga Zorro NCR53C710 driver"); 24 MODULE_LICENSE("GPL"); 25 26 27 static struct scsi_host_template zorro7xx_scsi_driver_template = { 28 .proc_name = "zorro7xx", 29 .this_id = 7, 30 .module = THIS_MODULE, 31 }; 32 33 static struct zorro_driver_data { 34 const char *name; 35 unsigned long offset; 36 int absolute; /* offset is absolute address */ 37 } zorro7xx_driver_data[] __devinitdata = { 38 { .name = "PowerUP 603e+", .offset = 0xf40000, .absolute = 1 }, 39 { .name = "WarpEngine 40xx", .offset = 0x40000 }, 40 { .name = "A4091", .offset = 0x800000 }, 41 { .name = "GForce 040/060", .offset = 0x40000 }, 42 { 0 } 43 }; 44 45 static struct zorro_device_id zorro7xx_zorro_tbl[] __devinitdata = { 46 { 47 .id = ZORRO_PROD_PHASE5_BLIZZARD_603E_PLUS, 48 .driver_data = (unsigned long)&zorro7xx_driver_data[0], 49 }, 50 { 51 .id = ZORRO_PROD_MACROSYSTEMS_WARP_ENGINE_40xx, 52 .driver_data = (unsigned long)&zorro7xx_driver_data[1], 53 }, 54 { 55 .id = ZORRO_PROD_CBM_A4091_1, 56 .driver_data = (unsigned long)&zorro7xx_driver_data[2], 57 }, 58 { 59 .id = ZORRO_PROD_CBM_A4091_2, 60 .driver_data = (unsigned long)&zorro7xx_driver_data[2], 61 }, 62 { 63 .id = ZORRO_PROD_GVP_GFORCE_040_060, 64 .driver_data = (unsigned long)&zorro7xx_driver_data[3], 65 }, 66 { 0 } 67 }; 68 69 static int __devinit zorro7xx_init_one(struct zorro_dev *z, 70 const struct zorro_device_id *ent) 71 { 72 struct Scsi_Host * host = NULL; 73 struct NCR_700_Host_Parameters *hostdata; 74 struct zorro_driver_data *zdd; 75 unsigned long board, ioaddr; 76 77 board = zorro_resource_start(z); 78 zdd = (struct zorro_driver_data *)ent->driver_data; 79 80 if (zdd->absolute) { 81 ioaddr = zdd->offset; 82 } else { 83 ioaddr = board + zdd->offset; 84 } 85 86 if (!zorro_request_device(z, zdd->name)) { 87 printk(KERN_ERR "zorro7xx: cannot reserve region 0x%lx, abort\n", 88 board); 89 return -EBUSY; 90 } 91 92 hostdata = kmalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); 93 if (hostdata == NULL) { 94 printk(KERN_ERR "zorro7xx: Failed to allocate host data\n"); 95 goto out_release; 96 } 97 98 memset(hostdata, 0, sizeof(struct NCR_700_Host_Parameters)); 99 100 /* Fill in the required pieces of hostdata */ 101 if (ioaddr > 0x01000000) 102 hostdata->base = ioremap(ioaddr, zorro_resource_len(z)); 103 else 104 hostdata->base = (void __iomem *)ZTWO_VADDR(ioaddr); 105 106 hostdata->clock = 50; 107 hostdata->chip710 = 1; 108 109 /* Settings for at least WarpEngine 40xx */ 110 hostdata->ctest7_extra = CTEST7_TT1; 111 112 zorro7xx_scsi_driver_template.name = zdd->name; 113 114 /* and register the chip */ 115 host = NCR_700_detect(&zorro7xx_scsi_driver_template, hostdata, 116 &z->dev); 117 if (!host) { 118 printk(KERN_ERR "zorro7xx: No host detected; " 119 "board configuration problem?\n"); 120 goto out_free; 121 } 122 123 host->this_id = 7; 124 host->base = ioaddr; 125 host->irq = IRQ_AMIGA_PORTS; 126 127 if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "zorro7xx-scsi", 128 host)) { 129 printk(KERN_ERR "zorro7xx: request_irq failed\n"); 130 goto out_put_host; 131 } 132 133 scsi_scan_host(host); 134 135 return 0; 136 137 out_put_host: 138 scsi_host_put(host); 139 out_free: 140 if (ioaddr > 0x01000000) 141 iounmap(hostdata->base); 142 kfree(hostdata); 143 out_release: 144 zorro_release_device(z); 145 146 return -ENODEV; 147 } 148 149 static __devexit void zorro7xx_remove_one(struct zorro_dev *z) 150 { 151 struct Scsi_Host *host = dev_to_shost(&z->dev); 152 struct NCR_700_Host_Parameters *hostdata = shost_priv(host); 153 154 scsi_remove_host(host); 155 156 NCR_700_release(host); 157 kfree(hostdata); 158 free_irq(host->irq, host); 159 zorro_release_device(z); 160 } 161 162 static struct zorro_driver zorro7xx_driver = { 163 .name = "zorro7xx-scsi", 164 .id_table = zorro7xx_zorro_tbl, 165 .probe = zorro7xx_init_one, 166 .remove = __devexit_p(zorro7xx_remove_one), 167 }; 168 169 static int __init zorro7xx_scsi_init(void) 170 { 171 return zorro_register_driver(&zorro7xx_driver); 172 } 173 174 static void __exit zorro7xx_scsi_exit(void) 175 { 176 zorro_unregister_driver(&zorro7xx_driver); 177 } 178 179 module_init(zorro7xx_scsi_init); 180 module_exit(zorro7xx_scsi_exit); 181