sni_53c710.c 2.9 KB

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  1. // SPDX-License-Identifier: GPL-2.0-or-later
  2. /* -*- mode: c; c-basic-offset: 8 -*- */
  3. /* SNI RM driver
  4. *
  5. * Copyright (C) 2001 by James.Bottomley@HansenPartnership.com
  6. **-----------------------------------------------------------------------------
  7. **
  8. **
  9. **-----------------------------------------------------------------------------
  10. */
  11. /*
  12. * Based on lasi700.c
  13. */
  14. #include <linux/kernel.h>
  15. #include <linux/module.h>
  16. #include <linux/init.h>
  17. #include <linux/types.h>
  18. #include <linux/slab.h>
  19. #include <linux/stat.h>
  20. #include <linux/mm.h>
  21. #include <linux/blkdev.h>
  22. #include <linux/sched.h>
  23. #include <linux/ioport.h>
  24. #include <linux/dma-mapping.h>
  25. #include <linux/platform_device.h>
  26. #include <asm/page.h>
  27. #include <asm/irq.h>
  28. #include <asm/delay.h>
  29. #include <scsi/scsi_host.h>
  30. #include <scsi/scsi_device.h>
  31. #include <scsi/scsi_transport.h>
  32. #include <scsi/scsi_transport_spi.h>
  33. #include "53c700.h"
  34. MODULE_AUTHOR("Thomas Bogendörfer");
  35. MODULE_DESCRIPTION("SNI RM 53c710 SCSI Driver");
  36. MODULE_LICENSE("GPL");
  37. MODULE_ALIAS("platform:snirm_53c710");
  38. #define SNIRM710_CLOCK 32
  39. static struct scsi_host_template snirm710_template = {
  40. .name = "SNI RM SCSI 53c710",
  41. .proc_name = "snirm_53c710",
  42. .this_id = 7,
  43. .module = THIS_MODULE,
  44. };
  45. static int snirm710_probe(struct platform_device *dev)
  46. {
  47. unsigned long base;
  48. struct NCR_700_Host_Parameters *hostdata;
  49. struct Scsi_Host *host;
  50. struct resource *res;
  51. int rc;
  52. res = platform_get_resource(dev, IORESOURCE_MEM, 0);
  53. if (!res)
  54. return -ENODEV;
  55. base = res->start;
  56. hostdata = kzalloc(sizeof(*hostdata), GFP_KERNEL);
  57. if (!hostdata)
  58. return -ENOMEM;
  59. hostdata->dev = &dev->dev;
  60. dma_set_mask(&dev->dev, DMA_BIT_MASK(32));
  61. hostdata->base = ioremap(base, 0x100);
  62. hostdata->differential = 0;
  63. hostdata->clock = SNIRM710_CLOCK;
  64. hostdata->force_le_on_be = 1;
  65. hostdata->chip710 = 1;
  66. hostdata->burst_length = 4;
  67. host = NCR_700_detect(&snirm710_template, hostdata, &dev->dev);
  68. if (!host)
  69. goto out_kfree;
  70. host->this_id = 7;
  71. host->base = base;
  72. host->irq = rc = platform_get_irq(dev, 0);
  73. if (rc < 0)
  74. goto out_put_host;
  75. if(request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "snirm710", host)) {
  76. printk(KERN_ERR "snirm710: request_irq failed!\n");
  77. goto out_put_host;
  78. }
  79. dev_set_drvdata(&dev->dev, host);
  80. scsi_scan_host(host);
  81. return 0;
  82. out_put_host:
  83. scsi_host_put(host);
  84. out_kfree:
  85. iounmap(hostdata->base);
  86. kfree(hostdata);
  87. return -ENODEV;
  88. }
  89. static int snirm710_driver_remove(struct platform_device *dev)
  90. {
  91. struct Scsi_Host *host = dev_get_drvdata(&dev->dev);
  92. struct NCR_700_Host_Parameters *hostdata =
  93. (struct NCR_700_Host_Parameters *)host->hostdata[0];
  94. scsi_remove_host(host);
  95. NCR_700_release(host);
  96. free_irq(host->irq, host);
  97. iounmap(hostdata->base);
  98. kfree(hostdata);
  99. return 0;
  100. }
  101. static struct platform_driver snirm710_driver = {
  102. .probe = snirm710_probe,
  103. .remove = snirm710_driver_remove,
  104. .driver = {
  105. .name = "snirm_53c710",
  106. },
  107. };
  108. module_platform_driver(snirm710_driver);