Commit | Line | Data |
---|---|---|
8276b58a KJ |
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 <asm/bvme6000hw.h> | |
16 | #include <scsi/scsi_host.h> | |
17 | #include <scsi/scsi_device.h> | |
18 | #include <scsi/scsi_transport.h> | |
19 | #include <scsi/scsi_transport_spi.h> | |
20 | ||
21 | #include "53c700.h" | |
22 | ||
23 | MODULE_AUTHOR("Richard Hirst <richard@sleepie.demon.co.uk>"); | |
24 | MODULE_DESCRIPTION("BVME6000 NCR53C710 driver"); | |
25 | MODULE_LICENSE("GPL"); | |
26 | ||
27 | static struct scsi_host_template bvme6000_scsi_driver_template = { | |
28 | .name = "BVME6000 NCR53c710 SCSI", | |
29 | .proc_name = "BVME6000", | |
30 | .this_id = 7, | |
31 | .module = THIS_MODULE, | |
32 | }; | |
33 | ||
34 | static struct platform_device *bvme6000_scsi_device; | |
35 | ||
36 | static __devinit int | |
37 | bvme6000_probe(struct device *dev) | |
38 | { | |
39 | struct Scsi_Host * host = NULL; | |
40 | struct NCR_700_Host_Parameters *hostdata; | |
41 | ||
42 | if (!MACH_IS_BVME6000) | |
43 | goto out; | |
44 | ||
45 | hostdata = kmalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); | |
46 | if (hostdata == NULL) { | |
47 | printk(KERN_ERR "bvme6000-scsi: " | |
48 | "Failed to allocate host data\n"); | |
49 | goto out; | |
50 | } | |
51 | memset(hostdata, 0, sizeof(struct NCR_700_Host_Parameters)); | |
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, dev); | |
63 | if (!host) { | |
64 | printk(KERN_ERR "bvme6000-scsi: No host detected; " | |
65 | "board configuration problem?\n"); | |
66 | goto out_free; | |
67 | } | |
68 | host->base = BVME_NCR53C710_BASE; | |
69 | host->this_id = 7; | |
70 | host->irq = BVME_IRQ_SCSI; | |
71 | if (request_irq(BVME_IRQ_SCSI, NCR_700_intr, 0, "bvme6000-scsi", | |
72 | host)) { | |
73 | printk(KERN_ERR "bvme6000-scsi: request_irq failed\n"); | |
74 | goto out_put_host; | |
75 | } | |
76 | ||
3ac709c1 | 77 | dev_set_drvdata(dev, host); |
8276b58a KJ |
78 | scsi_scan_host(host); |
79 | ||
80 | return 0; | |
81 | ||
82 | out_put_host: | |
83 | scsi_host_put(host); | |
84 | out_free: | |
85 | kfree(hostdata); | |
86 | out: | |
87 | return -ENODEV; | |
88 | } | |
89 | ||
90 | static __devexit int | |
91 | bvme6000_device_remove(struct device *dev) | |
92 | { | |
3ac709c1 | 93 | struct Scsi_Host *host = dev_get_drvdata(dev); |
8276b58a KJ |
94 | struct NCR_700_Host_Parameters *hostdata = shost_priv(host); |
95 | ||
96 | scsi_remove_host(host); | |
97 | NCR_700_release(host); | |
98 | kfree(hostdata); | |
99 | free_irq(host->irq, host); | |
100 | ||
101 | return 0; | |
102 | } | |
103 | ||
104 | static struct device_driver bvme6000_scsi_driver = { | |
105 | .name = "bvme6000-scsi", | |
106 | .bus = &platform_bus_type, | |
107 | .probe = bvme6000_probe, | |
108 | .remove = __devexit_p(bvme6000_device_remove), | |
109 | }; | |
110 | ||
111 | static int __init bvme6000_scsi_init(void) | |
112 | { | |
113 | int err; | |
114 | ||
115 | err = driver_register(&bvme6000_scsi_driver); | |
96249cf9 | 116 | if (err) |
8276b58a KJ |
117 | return err; |
118 | ||
119 | bvme6000_scsi_device = platform_device_register_simple("bvme6000-scsi", | |
120 | -1, NULL, 0); | |
121 | if (IS_ERR(bvme6000_scsi_device)) { | |
122 | driver_unregister(&bvme6000_scsi_driver); | |
123 | return PTR_ERR(bvme6000_scsi_device); | |
124 | } | |
125 | ||
126 | return 0; | |
127 | } | |
128 | ||
129 | static void __exit bvme6000_scsi_exit(void) | |
130 | { | |
131 | platform_device_unregister(bvme6000_scsi_device); | |
132 | driver_unregister(&bvme6000_scsi_driver); | |
133 | } | |
134 | ||
135 | module_init(bvme6000_scsi_init); | |
136 | module_exit(bvme6000_scsi_exit); |