Commit | Line | Data |
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45804fbb KJ |
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 | MODULE_DEVICE_TABLE(zorro, zorro7xx_zorro_tbl); | |
69 | ||
70 | static int __devinit zorro7xx_init_one(struct zorro_dev *z, | |
71 | const struct zorro_device_id *ent) | |
72 | { | |
73 | struct Scsi_Host * host = NULL; | |
74 | struct NCR_700_Host_Parameters *hostdata; | |
75 | struct zorro_driver_data *zdd; | |
76 | unsigned long board, ioaddr; | |
77 | ||
78 | board = zorro_resource_start(z); | |
79 | zdd = (struct zorro_driver_data *)ent->driver_data; | |
80 | ||
81 | if (zdd->absolute) { | |
82 | ioaddr = zdd->offset; | |
83 | } else { | |
84 | ioaddr = board + zdd->offset; | |
85 | } | |
86 | ||
87 | if (!zorro_request_device(z, zdd->name)) { | |
88 | printk(KERN_ERR "zorro7xx: cannot reserve region 0x%lx, abort\n", | |
89 | board); | |
90 | return -EBUSY; | |
91 | } | |
92 | ||
93 | hostdata = kmalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); | |
94 | if (hostdata == NULL) { | |
95 | printk(KERN_ERR "zorro7xx: Failed to allocate host data\n"); | |
96 | goto out_release; | |
97 | } | |
98 | ||
99 | memset(hostdata, 0, sizeof(struct NCR_700_Host_Parameters)); | |
100 | ||
101 | /* Fill in the required pieces of hostdata */ | |
102 | if (ioaddr > 0x01000000) | |
103 | hostdata->base = ioremap(ioaddr, zorro_resource_len(z)); | |
104 | else | |
105 | hostdata->base = (void __iomem *)ZTWO_VADDR(ioaddr); | |
106 | ||
107 | hostdata->clock = 50; | |
108 | hostdata->chip710 = 1; | |
109 | ||
110 | /* Settings for at least WarpEngine 40xx */ | |
111 | hostdata->ctest7_extra = CTEST7_TT1; | |
112 | ||
113 | zorro7xx_scsi_driver_template.name = zdd->name; | |
114 | ||
115 | /* and register the chip */ | |
116 | host = NCR_700_detect(&zorro7xx_scsi_driver_template, hostdata, | |
117 | &z->dev); | |
118 | if (!host) { | |
119 | printk(KERN_ERR "zorro7xx: No host detected; " | |
120 | "board configuration problem?\n"); | |
121 | goto out_free; | |
122 | } | |
123 | ||
124 | host->this_id = 7; | |
125 | host->base = ioaddr; | |
126 | host->irq = IRQ_AMIGA_PORTS; | |
127 | ||
128 | if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "zorro7xx-scsi", | |
129 | host)) { | |
130 | printk(KERN_ERR "zorro7xx: request_irq failed\n"); | |
131 | goto out_put_host; | |
132 | } | |
133 | ||
134 | scsi_scan_host(host); | |
135 | ||
136 | return 0; | |
137 | ||
138 | out_put_host: | |
139 | scsi_host_put(host); | |
140 | out_free: | |
141 | if (ioaddr > 0x01000000) | |
142 | iounmap(hostdata->base); | |
143 | kfree(hostdata); | |
144 | out_release: | |
145 | zorro_release_device(z); | |
146 | ||
147 | return -ENODEV; | |
148 | } | |
149 | ||
150 | static __devexit void zorro7xx_remove_one(struct zorro_dev *z) | |
151 | { | |
152 | struct Scsi_Host *host = dev_to_shost(&z->dev); | |
153 | struct NCR_700_Host_Parameters *hostdata = shost_priv(host); | |
154 | ||
155 | scsi_remove_host(host); | |
156 | ||
157 | NCR_700_release(host); | |
158 | kfree(hostdata); | |
159 | free_irq(host->irq, host); | |
160 | zorro_release_device(z); | |
161 | } | |
162 | ||
163 | static struct zorro_driver zorro7xx_driver = { | |
164 | .name = "zorro7xx-scsi", | |
165 | .id_table = zorro7xx_zorro_tbl, | |
166 | .probe = zorro7xx_init_one, | |
167 | .remove = __devexit_p(zorro7xx_remove_one), | |
168 | }; | |
169 | ||
170 | static int __init zorro7xx_scsi_init(void) | |
171 | { | |
172 | return zorro_register_driver(&zorro7xx_driver); | |
173 | } | |
174 | ||
175 | static void __exit zorro7xx_scsi_exit(void) | |
176 | { | |
177 | zorro_unregister_driver(&zorro7xx_driver); | |
178 | } | |
179 | ||
180 | module_init(zorro7xx_scsi_init); | |
181 | module_exit(zorro7xx_scsi_exit); |