]>
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 | |
7a192ec3 | 37 | bvme6000_probe(struct platform_device *dev) |
8276b58a | 38 | { |
bbfbbbc1 | 39 | struct Scsi_Host *host; |
8276b58a KJ |
40 | struct NCR_700_Host_Parameters *hostdata; |
41 | ||
42 | if (!MACH_IS_BVME6000) | |
43 | goto out; | |
44 | ||
bbfbbbc1 MK |
45 | hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); |
46 | if (!hostdata) { | |
8276b58a KJ |
47 | printk(KERN_ERR "bvme6000-scsi: " |
48 | "Failed to allocate host data\n"); | |
49 | goto out; | |
50 | } | |
8276b58a KJ |
51 | |
52 | /* Fill in the required pieces of hostdata */ | |
53 | hostdata->base = (void __iomem *)BVME_NCR53C710_BASE; | |
54 | hostdata->clock = 40; /* XXX - depends on the CPU clock! */ | |
55 | hostdata->chip710 = 1; | |
56 | hostdata->dmode_extra = DMODE_FC2; | |
57 | hostdata->dcntl_extra = EA_710; | |
58 | hostdata->ctest7_extra = CTEST7_TT1; | |
59 | ||
60 | /* and register the chip */ | |
61 | host = NCR_700_detect(&bvme6000_scsi_driver_template, hostdata, dev); | |
62 | if (!host) { | |
63 | printk(KERN_ERR "bvme6000-scsi: No host detected; " | |
64 | "board configuration problem?\n"); | |
65 | goto out_free; | |
66 | } | |
67 | host->base = BVME_NCR53C710_BASE; | |
68 | host->this_id = 7; | |
69 | host->irq = BVME_IRQ_SCSI; | |
70 | if (request_irq(BVME_IRQ_SCSI, NCR_700_intr, 0, "bvme6000-scsi", | |
71 | host)) { | |
72 | printk(KERN_ERR "bvme6000-scsi: request_irq failed\n"); | |
73 | goto out_put_host; | |
74 | } | |
75 | ||
7a192ec3 | 76 | platform_set_drvdata(dev, host); |
8276b58a KJ |
77 | scsi_scan_host(host); |
78 | ||
79 | return 0; | |
80 | ||
81 | out_put_host: | |
82 | scsi_host_put(host); | |
83 | out_free: | |
84 | kfree(hostdata); | |
85 | out: | |
86 | return -ENODEV; | |
87 | } | |
88 | ||
89 | static __devexit int | |
7a192ec3 | 90 | bvme6000_device_remove(struct platform_device *dev) |
8276b58a | 91 | { |
7a192ec3 | 92 | struct Scsi_Host *host = platform_get_drvdata(dev); |
8276b58a KJ |
93 | struct NCR_700_Host_Parameters *hostdata = shost_priv(host); |
94 | ||
95 | scsi_remove_host(host); | |
96 | NCR_700_release(host); | |
97 | kfree(hostdata); | |
98 | free_irq(host->irq, host); | |
99 | ||
100 | return 0; | |
101 | } | |
102 | ||
7a192ec3 ML |
103 | static struct platform_driver bvme6000_scsi_driver = { |
104 | .driver = { | |
105 | .name = "bvme6000-scsi", | |
106 | .owner = THIS_MODULE, | |
107 | }, | |
108 | .probe = bvme6000_probe, | |
109 | .remove = __devexit_p(bvme6000_device_remove), | |
8276b58a KJ |
110 | }; |
111 | ||
112 | static int __init bvme6000_scsi_init(void) | |
113 | { | |
114 | int err; | |
115 | ||
7a192ec3 | 116 | err = platform_driver_register(&bvme6000_scsi_driver); |
96249cf9 | 117 | if (err) |
8276b58a KJ |
118 | return err; |
119 | ||
120 | bvme6000_scsi_device = platform_device_register_simple("bvme6000-scsi", | |
121 | -1, NULL, 0); | |
122 | if (IS_ERR(bvme6000_scsi_device)) { | |
7a192ec3 | 123 | platform_driver_unregister(&bvme6000_scsi_driver); |
8276b58a KJ |
124 | return PTR_ERR(bvme6000_scsi_device); |
125 | } | |
126 | ||
127 | return 0; | |
128 | } | |
129 | ||
130 | static void __exit bvme6000_scsi_exit(void) | |
131 | { | |
132 | platform_device_unregister(bvme6000_scsi_device); | |
7a192ec3 | 133 | platform_driver_unregister(&bvme6000_scsi_driver); |
8276b58a KJ |
134 | } |
135 | ||
136 | module_init(bvme6000_scsi_init); | |
137 | module_exit(bvme6000_scsi_exit); |