linux/drivers/scsi/zorro7xx.c
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   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 <linux/slab.h>
  17
  18#include <asm/amigahw.h>
  19#include <asm/amigaints.h>
  20
  21#include <scsi/scsi_host.h>
  22#include <scsi/scsi_transport_spi.h>
  23
  24#include "53c700.h"
  25
  26MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / Kars de Jong <jongk@linux-m68k.org>");
  27MODULE_DESCRIPTION("Amiga Zorro NCR53C710 driver");
  28MODULE_LICENSE("GPL");
  29
  30
  31static struct scsi_host_template zorro7xx_scsi_driver_template = {
  32        .proc_name      = "zorro7xx",
  33        .this_id        = 7,
  34        .module         = THIS_MODULE,
  35};
  36
  37static struct zorro_driver_data {
  38        const char *name;
  39        unsigned long offset;
  40        int absolute;   /* offset is absolute address */
  41} zorro7xx_driver_data[] = {
  42        { .name = "PowerUP 603e+", .offset = 0xf40000, .absolute = 1 },
  43        { .name = "WarpEngine 40xx", .offset = 0x40000 },
  44        { .name = "A4091", .offset = 0x800000 },
  45        { .name = "GForce 040/060", .offset = 0x40000 },
  46        { 0 }
  47};
  48
  49static struct zorro_device_id zorro7xx_zorro_tbl[] = {
  50        {
  51                .id = ZORRO_PROD_PHASE5_BLIZZARD_603E_PLUS,
  52                .driver_data = (unsigned long)&zorro7xx_driver_data[0],
  53        },
  54        {
  55                .id = ZORRO_PROD_MACROSYSTEMS_WARP_ENGINE_40xx,
  56                .driver_data = (unsigned long)&zorro7xx_driver_data[1],
  57        },
  58        {
  59                .id = ZORRO_PROD_CBM_A4091_1,
  60                .driver_data = (unsigned long)&zorro7xx_driver_data[2],
  61        },
  62        {
  63                .id = ZORRO_PROD_CBM_A4091_2,
  64                .driver_data = (unsigned long)&zorro7xx_driver_data[2],
  65        },
  66        {
  67                .id = ZORRO_PROD_GVP_GFORCE_040_060,
  68                .driver_data = (unsigned long)&zorro7xx_driver_data[3],
  69        },
  70        { 0 }
  71};
  72MODULE_DEVICE_TABLE(zorro, zorro7xx_zorro_tbl);
  73
  74static int zorro7xx_init_one(struct zorro_dev *z,
  75                             const struct zorro_device_id *ent)
  76{
  77        struct Scsi_Host *host;
  78        struct NCR_700_Host_Parameters *hostdata;
  79        struct zorro_driver_data *zdd;
  80        unsigned long board, ioaddr;
  81
  82        board = zorro_resource_start(z);
  83        zdd = (struct zorro_driver_data *)ent->driver_data;
  84
  85        if (zdd->absolute) {
  86                ioaddr = zdd->offset;
  87        } else {
  88                ioaddr = board + zdd->offset;
  89        }
  90
  91        if (!zorro_request_device(z, zdd->name)) {
  92                printk(KERN_ERR "zorro7xx: cannot reserve region 0x%lx, abort\n",
  93                       board);
  94                return -EBUSY;
  95        }
  96
  97        hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
  98        if (!hostdata) {
  99                printk(KERN_ERR "zorro7xx: Failed to allocate host data\n");
 100                goto out_release;
 101        }
 102
 103        /* Fill in the required pieces of hostdata */
 104        if (ioaddr > 0x01000000)
 105                hostdata->base = ioremap(ioaddr, zorro_resource_len(z));
 106        else
 107                hostdata->base = (void __iomem *)ZTWO_VADDR(ioaddr);
 108
 109        hostdata->clock = 50;
 110        hostdata->chip710 = 1;
 111
 112        /* Settings for at least WarpEngine 40xx */
 113        hostdata->ctest7_extra = CTEST7_TT1;
 114
 115        zorro7xx_scsi_driver_template.name = zdd->name;
 116
 117        /* and register the chip */
 118        host = NCR_700_detect(&zorro7xx_scsi_driver_template, hostdata,
 119                              &z->dev);
 120        if (!host) {
 121                printk(KERN_ERR "zorro7xx: No host detected; "
 122                                "board configuration problem?\n");
 123                goto out_free;
 124        }
 125
 126        host->this_id = 7;
 127        host->base = ioaddr;
 128        host->irq = IRQ_AMIGA_PORTS;
 129
 130        if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "zorro7xx-scsi",
 131                        host)) {
 132                printk(KERN_ERR "zorro7xx: request_irq failed\n");
 133                goto out_put_host;
 134        }
 135
 136        zorro_set_drvdata(z, host);
 137        scsi_scan_host(host);
 138
 139        return 0;
 140
 141 out_put_host:
 142        scsi_host_put(host);
 143 out_free:
 144        if (ioaddr > 0x01000000)
 145                iounmap(hostdata->base);
 146        kfree(hostdata);
 147 out_release:
 148        zorro_release_device(z);
 149
 150        return -ENODEV;
 151}
 152
 153static void zorro7xx_remove_one(struct zorro_dev *z)
 154{
 155        struct Scsi_Host *host = zorro_get_drvdata(z);
 156        struct NCR_700_Host_Parameters *hostdata = shost_priv(host);
 157
 158        scsi_remove_host(host);
 159
 160        NCR_700_release(host);
 161        kfree(hostdata);
 162        free_irq(host->irq, host);
 163        zorro_release_device(z);
 164}
 165
 166static struct zorro_driver zorro7xx_driver = {
 167        .name     = "zorro7xx-scsi",
 168        .id_table = zorro7xx_zorro_tbl,
 169        .probe    = zorro7xx_init_one,
 170        .remove   = zorro7xx_remove_one,
 171};
 172
 173static int __init zorro7xx_scsi_init(void)
 174{
 175        return zorro_register_driver(&zorro7xx_driver);
 176}
 177
 178static void __exit zorro7xx_scsi_exit(void)
 179{
 180        zorro_unregister_driver(&zorro7xx_driver);
 181}
 182
 183module_init(zorro7xx_scsi_init);
 184module_exit(zorro7xx_scsi_exit);
 185
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