/*
   * Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux.
   *		Amiga MacroSystemUS WarpEngine SCSI controller.
   *		Amiga Technologies/DKB A4091 SCSI controller.
   *
   * Written 1997 by Alan Hourihane <alanh@fairlite.demon.co.uk>
   * plus modifications of the 53c7xx.c driver to support the Amiga.
   *
   * Rewritten to use 53c700.c by Kars de Jong <jongk@linux-m68k.org>
   */
  
  #include <linux/module.h>
  #include <linux/init.h>
  #include <linux/interrupt.h>
  #include <linux/zorro.h>

  #include <linux/slab.h>

  
  #include <asm/amigahw.h>

  #include <asm/amigaints.h>

  #include <scsi/scsi_host.h>
  #include <scsi/scsi_transport_spi.h>
  
  #include "53c700.h"
  
  MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / Kars de Jong <jongk@linux-m68k.org>");
  MODULE_DESCRIPTION("Amiga Zorro NCR53C710 driver");
  MODULE_LICENSE("GPL");
  
  
  static struct scsi_host_template zorro7xx_scsi_driver_template = {
  	.proc_name	= "zorro7xx",
  	.this_id	= 7,
  	.module		= THIS_MODULE,
  };
  
  static struct zorro_driver_data {
  	const char *name;
  	unsigned long offset;
  	int absolute;	/* offset is absolute address */
  } zorro7xx_driver_data[] __devinitdata = {
  	{ .name = "PowerUP 603e+", .offset = 0xf40000, .absolute = 1 },
  	{ .name = "WarpEngine 40xx", .offset = 0x40000 },
  	{ .name = "A4091", .offset = 0x800000 },
  	{ .name = "GForce 040/060", .offset = 0x40000 },
  	{ 0 }
  };
  
  static struct zorro_device_id zorro7xx_zorro_tbl[] __devinitdata = {
  	{
  		.id = ZORRO_PROD_PHASE5_BLIZZARD_603E_PLUS,
  		.driver_data = (unsigned long)&zorro7xx_driver_data[0],
  	},
  	{
  		.id = ZORRO_PROD_MACROSYSTEMS_WARP_ENGINE_40xx,
  		.driver_data = (unsigned long)&zorro7xx_driver_data[1],
  	},
  	{
  		.id = ZORRO_PROD_CBM_A4091_1,
  		.driver_data = (unsigned long)&zorro7xx_driver_data[2],
  	},
  	{
  		.id = ZORRO_PROD_CBM_A4091_2,
  		.driver_data = (unsigned long)&zorro7xx_driver_data[2],
  	},
  	{
  		.id = ZORRO_PROD_GVP_GFORCE_040_060,
  		.driver_data = (unsigned long)&zorro7xx_driver_data[3],
  	},
  	{ 0 }
  };

  MODULE_DEVICE_TABLE(zorro, zorro7xx_zorro_tbl);

  
  static int __devinit zorro7xx_init_one(struct zorro_dev *z,
  				       const struct zorro_device_id *ent)
  {

  	struct Scsi_Host *host;

  	struct NCR_700_Host_Parameters *hostdata;
  	struct zorro_driver_data *zdd;
  	unsigned long board, ioaddr;
  
  	board = zorro_resource_start(z);
  	zdd = (struct zorro_driver_data *)ent->driver_data;
  
  	if (zdd->absolute) {
  		ioaddr = zdd->offset;
  	} else {
  		ioaddr = board + zdd->offset;
  	}
  
  	if (!zorro_request_device(z, zdd->name)) {
  		printk(KERN_ERR "zorro7xx: cannot reserve region 0x%lx, abort
  ",
  		       board);
  		return -EBUSY;
  	}

  	hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
  	if (!hostdata) {

  		printk(KERN_ERR "zorro7xx: Failed to allocate host data
  ");
  		goto out_release;
  	}

  	/* Fill in the required pieces of hostdata */
  	if (ioaddr > 0x01000000)
  		hostdata->base = ioremap(ioaddr, zorro_resource_len(z));
  	else
  		hostdata->base = (void __iomem *)ZTWO_VADDR(ioaddr);
  
  	hostdata->clock = 50;
  	hostdata->chip710 = 1;
  
  	/* Settings for at least WarpEngine 40xx */
  	hostdata->ctest7_extra = CTEST7_TT1;
  
  	zorro7xx_scsi_driver_template.name = zdd->name;
  
  	/* and register the chip */
  	host = NCR_700_detect(&zorro7xx_scsi_driver_template, hostdata,
  			      &z->dev);
  	if (!host) {
  		printk(KERN_ERR "zorro7xx: No host detected; "
  				"board configuration problem?
  ");
  		goto out_free;
  	}
  
  	host->this_id = 7;
  	host->base = ioaddr;
  	host->irq = IRQ_AMIGA_PORTS;
  
  	if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "zorro7xx-scsi",
  			host)) {
  		printk(KERN_ERR "zorro7xx: request_irq failed
  ");
  		goto out_put_host;
  	}

  	zorro_set_drvdata(z, host);

  	scsi_scan_host(host);
  
  	return 0;
  
   out_put_host:
  	scsi_host_put(host);
   out_free:
  	if (ioaddr > 0x01000000)
  		iounmap(hostdata->base);
  	kfree(hostdata);
   out_release:
  	zorro_release_device(z);
  
  	return -ENODEV;
  }
  
  static __devexit void zorro7xx_remove_one(struct zorro_dev *z)
  {

  	struct Scsi_Host *host = zorro_get_drvdata(z);

  	struct NCR_700_Host_Parameters *hostdata = shost_priv(host);
  
  	scsi_remove_host(host);
  
  	NCR_700_release(host);
  	kfree(hostdata);
  	free_irq(host->irq, host);
  	zorro_release_device(z);
  }
  
  static struct zorro_driver zorro7xx_driver = {
  	.name	  = "zorro7xx-scsi",
  	.id_table = zorro7xx_zorro_tbl,
  	.probe	  = zorro7xx_init_one,
  	.remove	  = __devexit_p(zorro7xx_remove_one),
  };
  
  static int __init zorro7xx_scsi_init(void)
  {
  	return zorro_register_driver(&zorro7xx_driver);
  }
  
  static void __exit zorro7xx_scsi_exit(void)
  {
  	zorro_unregister_driver(&zorro7xx_driver);
  }
  
  module_init(zorro7xx_scsi_init);
  module_exit(zorro7xx_scsi_exit);