Version:  2.0.40 2.2.26 2.4.37 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16

Linux/drivers/scsi/bvme6000_scsi.c

  1 /*
  2  * Detection routine for the NCR53c710 based BVME6000 SCSI Controllers for Linux.
  3  *
  4  * Based on work by Alan Hourihane and Kars de Jong
  5  *
  6  * Rewritten to use 53c700.c by Richard Hirst <richard@sleepie.demon.co.uk>
  7  */
  8 
  9 #include <linux/module.h>
 10 #include <linux/blkdev.h>
 11 #include <linux/device.h>
 12 #include <linux/platform_device.h>
 13 #include <linux/init.h>
 14 #include <linux/interrupt.h>
 15 #include <linux/slab.h>
 16 #include <asm/bvme6000hw.h>
 17 #include <scsi/scsi_host.h>
 18 #include <scsi/scsi_device.h>
 19 #include <scsi/scsi_transport.h>
 20 #include <scsi/scsi_transport_spi.h>
 21 
 22 #include "53c700.h"
 23 
 24 MODULE_AUTHOR("Richard Hirst <richard@sleepie.demon.co.uk>");
 25 MODULE_DESCRIPTION("BVME6000 NCR53C710 driver");
 26 MODULE_LICENSE("GPL");
 27 
 28 static struct scsi_host_template bvme6000_scsi_driver_template = {
 29         .name                   = "BVME6000 NCR53c710 SCSI",
 30         .proc_name              = "BVME6000",
 31         .this_id                = 7,
 32         .module                 = THIS_MODULE,
 33 };
 34 
 35 static struct platform_device *bvme6000_scsi_device;
 36 
 37 static int
 38 bvme6000_probe(struct platform_device *dev)
 39 {
 40         struct Scsi_Host *host;
 41         struct NCR_700_Host_Parameters *hostdata;
 42 
 43         if (!MACH_IS_BVME6000)
 44                 goto out;
 45 
 46         hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
 47         if (!hostdata) {
 48                 printk(KERN_ERR "bvme6000-scsi: "
 49                                 "Failed to allocate host data\n");
 50                 goto out;
 51         }
 52 
 53         /* Fill in the required pieces of hostdata */
 54         hostdata->base = (void __iomem *)BVME_NCR53C710_BASE;
 55         hostdata->clock = 40;   /* XXX - depends on the CPU clock! */
 56         hostdata->chip710 = 1;
 57         hostdata->dmode_extra = DMODE_FC2;
 58         hostdata->dcntl_extra = EA_710;
 59         hostdata->ctest7_extra = CTEST7_TT1;
 60 
 61         /* and register the chip */
 62         host = NCR_700_detect(&bvme6000_scsi_driver_template, hostdata,
 63                               &dev->dev);
 64         if (!host) {
 65                 printk(KERN_ERR "bvme6000-scsi: No host detected; "
 66                                 "board configuration problem?\n");
 67                 goto out_free;
 68         }
 69         host->base = BVME_NCR53C710_BASE;
 70         host->this_id = 7;
 71         host->irq = BVME_IRQ_SCSI;
 72         if (request_irq(BVME_IRQ_SCSI, NCR_700_intr, 0, "bvme6000-scsi",
 73                         host)) {
 74                 printk(KERN_ERR "bvme6000-scsi: request_irq failed\n");
 75                 goto out_put_host;
 76         }
 77 
 78         platform_set_drvdata(dev, host);
 79         scsi_scan_host(host);
 80 
 81         return 0;
 82 
 83  out_put_host:
 84         scsi_host_put(host);
 85  out_free:
 86         kfree(hostdata);
 87  out:
 88         return -ENODEV;
 89 }
 90 
 91 static int
 92 bvme6000_device_remove(struct platform_device *dev)
 93 {
 94         struct Scsi_Host *host = platform_get_drvdata(dev);
 95         struct NCR_700_Host_Parameters *hostdata = shost_priv(host);
 96 
 97         scsi_remove_host(host);
 98         NCR_700_release(host);
 99         kfree(hostdata);
100         free_irq(host->irq, host);
101 
102         return 0;
103 }
104 
105 static struct platform_driver bvme6000_scsi_driver = {
106         .driver = {
107                 .name           = "bvme6000-scsi",
108                 .owner          = THIS_MODULE,
109         },
110         .probe          = bvme6000_probe,
111         .remove         = bvme6000_device_remove,
112 };
113 
114 static int __init bvme6000_scsi_init(void)
115 {
116         int err;
117 
118         err = platform_driver_register(&bvme6000_scsi_driver);
119         if (err)
120                 return err;
121 
122         bvme6000_scsi_device = platform_device_register_simple("bvme6000-scsi",
123                                                                -1, NULL, 0);
124         if (IS_ERR(bvme6000_scsi_device)) {
125                 platform_driver_unregister(&bvme6000_scsi_driver);
126                 return PTR_ERR(bvme6000_scsi_device);
127         }
128 
129         return 0;
130 }
131 
132 static void __exit bvme6000_scsi_exit(void)
133 {
134         platform_device_unregister(bvme6000_scsi_device);
135         platform_driver_unregister(&bvme6000_scsi_driver);
136 }
137 
138 module_init(bvme6000_scsi_init);
139 module_exit(bvme6000_scsi_exit);
140 

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