// SPDX-License-Identifier: GPL-2.0-or-later

  /* -*- mode: c; c-basic-offset: 8 -*- */
  
  /* SNI RM driver
   *
   * Copyright (C) 2001 by James.Bottomley@HansenPartnership.com
  **-----------------------------------------------------------------------------
  **

  **
  **-----------------------------------------------------------------------------
   */
  
  /*
   * Based on lasi700.c
   */
  
  #include <linux/kernel.h>
  #include <linux/module.h>
  #include <linux/init.h>
  #include <linux/types.h>

  #include <linux/slab.h>

  #include <linux/stat.h>
  #include <linux/mm.h>
  #include <linux/blkdev.h>
  #include <linux/sched.h>
  #include <linux/ioport.h>
  #include <linux/dma-mapping.h>
  #include <linux/platform_device.h>
  
  #include <asm/page.h>
  #include <asm/pgtable.h>
  #include <asm/irq.h>
  #include <asm/delay.h>
  
  #include <scsi/scsi_host.h>
  #include <scsi/scsi_device.h>
  #include <scsi/scsi_transport.h>
  #include <scsi/scsi_transport_spi.h>
  
  #include "53c700.h"

  MODULE_AUTHOR("Thomas Bogendörfer");

  MODULE_DESCRIPTION("SNI RM 53c710 SCSI Driver");
  MODULE_LICENSE("GPL");

  MODULE_ALIAS("platform:snirm_53c710");

  
  #define SNIRM710_CLOCK	32
  
  static struct scsi_host_template snirm710_template = {
  	.name		= "SNI RM SCSI 53c710",
  	.proc_name	= "snirm_53c710",
  	.this_id	= 7,
  	.module		= THIS_MODULE,
  };

  static int snirm710_probe(struct platform_device *dev)

  {
  	unsigned long base;
  	struct NCR_700_Host_Parameters *hostdata;
  	struct Scsi_Host *host;
  	struct  resource *res;
  
  	res = platform_get_resource(dev, IORESOURCE_MEM, 0);
  	if (!res)
  		return -ENODEV;
  
  	base = res->start;
  	hostdata = kzalloc(sizeof(*hostdata), GFP_KERNEL);

  	if (!hostdata)

  		return -ENOMEM;

  
  	hostdata->dev = &dev->dev;

  	dma_set_mask(&dev->dev, DMA_BIT_MASK(32));

  	hostdata->base = ioremap_nocache(base, 0x100);

  	hostdata->differential = 0;
  
  	hostdata->clock = SNIRM710_CLOCK;
  	hostdata->force_le_on_be = 1;
  	hostdata->chip710 = 1;
  	hostdata->burst_length = 4;
  
  	host = NCR_700_detect(&snirm710_template, hostdata, &dev->dev);
  	if (!host)
  		goto out_kfree;
  	host->this_id = 7;
  	host->base = base;
  	host->irq = platform_get_irq(dev, 0);

  	if(request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "snirm710", host)) {

  		printk(KERN_ERR "snirm710: request_irq failed!
  ");
  		goto out_put_host;
  	}
  
  	dev_set_drvdata(&dev->dev, host);
  	scsi_scan_host(host);
  
  	return 0;
  
   out_put_host:
  	scsi_host_put(host);
   out_kfree:
  	iounmap(hostdata->base);
  	kfree(hostdata);
  	return -ENODEV;
  }

  static int snirm710_driver_remove(struct platform_device *dev)

  {
  	struct Scsi_Host *host = dev_get_drvdata(&dev->dev);
  	struct NCR_700_Host_Parameters *hostdata =
  		(struct NCR_700_Host_Parameters *)host->hostdata[0];
  
  	scsi_remove_host(host);
  	NCR_700_release(host);
  	free_irq(host->irq, host);
  	iounmap(hostdata->base);
  	kfree(hostdata);
  
  	return 0;
  }
  
  static struct platform_driver snirm710_driver = {
  	.probe	= snirm710_probe,

  	.remove	= snirm710_driver_remove,

  	.driver	= {
  		.name	= "snirm_53c710",
  	},
  };
  
  static int __init snirm710_init(void)
  {

  	return platform_driver_register(&snirm710_driver);

  }
  
  static void __exit snirm710_exit(void)
  {
  	platform_driver_unregister(&snirm710_driver);
  }
  
  module_init(snirm710_init);
  module_exit(snirm710_exit);