diff options
Diffstat (limited to 'drivers/scsi/zorro7xx.c')
-rw-r--r-- | drivers/scsi/zorro7xx.c | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/drivers/scsi/zorro7xx.c b/drivers/scsi/zorro7xx.c new file mode 100644 index 000000000000..50703877a585 --- /dev/null +++ b/drivers/scsi/zorro7xx.c | |||
@@ -0,0 +1,180 @@ | |||
1 | /* | ||
2 | * Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux. | ||
3 | * Amiga MacroSystemUS WarpEngine SCSI controller. | ||
4 | * Amiga Technologies/DKB A4091 SCSI controller. | ||
5 | * | ||
6 | * Written 1997 by Alan Hourihane <alanh@fairlite.demon.co.uk> | ||
7 | * plus modifications of the 53c7xx.c driver to support the Amiga. | ||
8 | * | ||
9 | * Rewritten to use 53c700.c by Kars de Jong <jongk@linux-m68k.org> | ||
10 | */ | ||
11 | |||
12 | #include <linux/module.h> | ||
13 | #include <linux/init.h> | ||
14 | #include <linux/interrupt.h> | ||
15 | #include <linux/zorro.h> | ||
16 | #include <asm/amigaints.h> | ||
17 | #include <scsi/scsi_host.h> | ||
18 | #include <scsi/scsi_transport_spi.h> | ||
19 | |||
20 | #include "53c700.h" | ||
21 | |||
22 | MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / Kars de Jong <jongk@linux-m68k.org>"); | ||
23 | MODULE_DESCRIPTION("Amiga Zorro NCR53C710 driver"); | ||
24 | MODULE_LICENSE("GPL"); | ||
25 | |||
26 | |||
27 | static struct scsi_host_template zorro7xx_scsi_driver_template = { | ||
28 | .proc_name = "zorro7xx", | ||
29 | .this_id = 7, | ||
30 | .module = THIS_MODULE, | ||
31 | }; | ||
32 | |||
33 | static struct zorro_driver_data { | ||
34 | const char *name; | ||
35 | unsigned long offset; | ||
36 | int absolute; /* offset is absolute address */ | ||
37 | } zorro7xx_driver_data[] __devinitdata = { | ||
38 | { .name = "PowerUP 603e+", .offset = 0xf40000, .absolute = 1 }, | ||
39 | { .name = "WarpEngine 40xx", .offset = 0x40000 }, | ||
40 | { .name = "A4091", .offset = 0x800000 }, | ||
41 | { .name = "GForce 040/060", .offset = 0x40000 }, | ||
42 | { 0 } | ||
43 | }; | ||
44 | |||
45 | static struct zorro_device_id zorro7xx_zorro_tbl[] __devinitdata = { | ||
46 | { | ||
47 | .id = ZORRO_PROD_PHASE5_BLIZZARD_603E_PLUS, | ||
48 | .driver_data = (unsigned long)&zorro7xx_driver_data[0], | ||
49 | }, | ||
50 | { | ||
51 | .id = ZORRO_PROD_MACROSYSTEMS_WARP_ENGINE_40xx, | ||
52 | .driver_data = (unsigned long)&zorro7xx_driver_data[1], | ||
53 | }, | ||
54 | { | ||
55 | .id = ZORRO_PROD_CBM_A4091_1, | ||
56 | .driver_data = (unsigned long)&zorro7xx_driver_data[2], | ||
57 | }, | ||
58 | { | ||
59 | .id = ZORRO_PROD_CBM_A4091_2, | ||
60 | .driver_data = (unsigned long)&zorro7xx_driver_data[2], | ||
61 | }, | ||
62 | { | ||
63 | .id = ZORRO_PROD_GVP_GFORCE_040_060, | ||
64 | .driver_data = (unsigned long)&zorro7xx_driver_data[3], | ||
65 | }, | ||
66 | { 0 } | ||
67 | }; | ||
68 | |||
69 | static int __devinit zorro7xx_init_one(struct zorro_dev *z, | ||
70 | const struct zorro_device_id *ent) | ||
71 | { | ||
72 | struct Scsi_Host * host = NULL; | ||
73 | struct NCR_700_Host_Parameters *hostdata; | ||
74 | struct zorro_driver_data *zdd; | ||
75 | unsigned long board, ioaddr; | ||
76 | |||
77 | board = zorro_resource_start(z); | ||
78 | zdd = (struct zorro_driver_data *)ent->driver_data; | ||
79 | |||
80 | if (zdd->absolute) { | ||
81 | ioaddr = zdd->offset; | ||
82 | } else { | ||
83 | ioaddr = board + zdd->offset; | ||
84 | } | ||
85 | |||
86 | if (!zorro_request_device(z, zdd->name)) { | ||
87 | printk(KERN_ERR "zorro7xx: cannot reserve region 0x%lx, abort\n", | ||
88 | board); | ||
89 | return -EBUSY; | ||
90 | } | ||
91 | |||
92 | hostdata = kmalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); | ||
93 | if (hostdata == NULL) { | ||
94 | printk(KERN_ERR "zorro7xx: Failed to allocate host data\n"); | ||
95 | goto out_release; | ||
96 | } | ||
97 | |||
98 | memset(hostdata, 0, sizeof(struct NCR_700_Host_Parameters)); | ||
99 | |||
100 | /* Fill in the required pieces of hostdata */ | ||
101 | if (ioaddr > 0x01000000) | ||
102 | hostdata->base = ioremap(ioaddr, zorro_resource_len(z)); | ||
103 | else | ||
104 | hostdata->base = (void __iomem *)ZTWO_VADDR(ioaddr); | ||
105 | |||
106 | hostdata->clock = 50; | ||
107 | hostdata->chip710 = 1; | ||
108 | |||
109 | /* Settings for at least WarpEngine 40xx */ | ||
110 | hostdata->ctest7_extra = CTEST7_TT1; | ||
111 | |||
112 | zorro7xx_scsi_driver_template.name = zdd->name; | ||
113 | |||
114 | /* and register the chip */ | ||
115 | host = NCR_700_detect(&zorro7xx_scsi_driver_template, hostdata, | ||
116 | &z->dev); | ||
117 | if (!host) { | ||
118 | printk(KERN_ERR "zorro7xx: No host detected; " | ||
119 | "board configuration problem?\n"); | ||
120 | goto out_free; | ||
121 | } | ||
122 | |||
123 | host->this_id = 7; | ||
124 | host->base = ioaddr; | ||
125 | host->irq = IRQ_AMIGA_PORTS; | ||
126 | |||
127 | if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "zorro7xx-scsi", | ||
128 | host)) { | ||
129 | printk(KERN_ERR "zorro7xx: request_irq failed\n"); | ||
130 | goto out_put_host; | ||
131 | } | ||
132 | |||
133 | scsi_scan_host(host); | ||
134 | |||
135 | return 0; | ||
136 | |||
137 | out_put_host: | ||
138 | scsi_host_put(host); | ||
139 | out_free: | ||
140 | if (ioaddr > 0x01000000) | ||
141 | iounmap(hostdata->base); | ||
142 | kfree(hostdata); | ||
143 | out_release: | ||
144 | zorro_release_device(z); | ||
145 | |||
146 | return -ENODEV; | ||
147 | } | ||
148 | |||
149 | static __devexit void zorro7xx_remove_one(struct zorro_dev *z) | ||
150 | { | ||
151 | struct Scsi_Host *host = dev_to_shost(&z->dev); | ||
152 | struct NCR_700_Host_Parameters *hostdata = shost_priv(host); | ||
153 | |||
154 | scsi_remove_host(host); | ||
155 | |||
156 | NCR_700_release(host); | ||
157 | kfree(hostdata); | ||
158 | free_irq(host->irq, host); | ||
159 | zorro_release_device(z); | ||
160 | } | ||
161 | |||
162 | static struct zorro_driver zorro7xx_driver = { | ||
163 | .name = "zorro7xx-scsi", | ||
164 | .id_table = zorro7xx_zorro_tbl, | ||
165 | .probe = zorro7xx_init_one, | ||
166 | .remove = __devexit_p(zorro7xx_remove_one), | ||
167 | }; | ||
168 | |||
169 | static int __init zorro7xx_scsi_init(void) | ||
170 | { | ||
171 | return zorro_register_driver(&zorro7xx_driver); | ||
172 | } | ||
173 | |||
174 | static void __exit zorro7xx_scsi_exit(void) | ||
175 | { | ||
176 | zorro_unregister_driver(&zorro7xx_driver); | ||
177 | } | ||
178 | |||
179 | module_init(zorro7xx_scsi_init); | ||
180 | module_exit(zorro7xx_scsi_exit); | ||