[SCSI] lpfc 8.3.25: Adapter Interface fixes and changes
[linux-2.6.git] / 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 __devinit 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 __devexit 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         = __devexit_p(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);