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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> | |
e482179d GU |
16 | |
17 | #include <asm/amigahw.h> | |
45804fbb | 18 | #include <asm/amigaints.h> |
e482179d | 19 | |
45804fbb KJ |
20 | #include <scsi/scsi_host.h> |
21 | #include <scsi/scsi_transport_spi.h> | |
22 | ||
23 | #include "53c700.h" | |
24 | ||
25 | MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / Kars de Jong <jongk@linux-m68k.org>"); | |
26 | MODULE_DESCRIPTION("Amiga Zorro NCR53C710 driver"); | |
27 | MODULE_LICENSE("GPL"); | |
28 | ||
29 | ||
30 | static struct scsi_host_template zorro7xx_scsi_driver_template = { | |
31 | .proc_name = "zorro7xx", | |
32 | .this_id = 7, | |
33 | .module = THIS_MODULE, | |
34 | }; | |
35 | ||
36 | static struct zorro_driver_data { | |
37 | const char *name; | |
38 | unsigned long offset; | |
39 | int absolute; /* offset is absolute address */ | |
40 | } zorro7xx_driver_data[] __devinitdata = { | |
41 | { .name = "PowerUP 603e+", .offset = 0xf40000, .absolute = 1 }, | |
42 | { .name = "WarpEngine 40xx", .offset = 0x40000 }, | |
43 | { .name = "A4091", .offset = 0x800000 }, | |
44 | { .name = "GForce 040/060", .offset = 0x40000 }, | |
45 | { 0 } | |
46 | }; | |
47 | ||
48 | static struct zorro_device_id zorro7xx_zorro_tbl[] __devinitdata = { | |
49 | { | |
50 | .id = ZORRO_PROD_PHASE5_BLIZZARD_603E_PLUS, | |
51 | .driver_data = (unsigned long)&zorro7xx_driver_data[0], | |
52 | }, | |
53 | { | |
54 | .id = ZORRO_PROD_MACROSYSTEMS_WARP_ENGINE_40xx, | |
55 | .driver_data = (unsigned long)&zorro7xx_driver_data[1], | |
56 | }, | |
57 | { | |
58 | .id = ZORRO_PROD_CBM_A4091_1, | |
59 | .driver_data = (unsigned long)&zorro7xx_driver_data[2], | |
60 | }, | |
61 | { | |
62 | .id = ZORRO_PROD_CBM_A4091_2, | |
63 | .driver_data = (unsigned long)&zorro7xx_driver_data[2], | |
64 | }, | |
65 | { | |
66 | .id = ZORRO_PROD_GVP_GFORCE_040_060, | |
67 | .driver_data = (unsigned long)&zorro7xx_driver_data[3], | |
68 | }, | |
69 | { 0 } | |
70 | }; | |
45804fbb KJ |
71 | |
72 | static int __devinit zorro7xx_init_one(struct zorro_dev *z, | |
73 | const struct zorro_device_id *ent) | |
74 | { | |
bbfbbbc1 | 75 | struct Scsi_Host *host; |
45804fbb KJ |
76 | struct NCR_700_Host_Parameters *hostdata; |
77 | struct zorro_driver_data *zdd; | |
78 | unsigned long board, ioaddr; | |
79 | ||
80 | board = zorro_resource_start(z); | |
81 | zdd = (struct zorro_driver_data *)ent->driver_data; | |
82 | ||
83 | if (zdd->absolute) { | |
84 | ioaddr = zdd->offset; | |
85 | } else { | |
86 | ioaddr = board + zdd->offset; | |
87 | } | |
88 | ||
89 | if (!zorro_request_device(z, zdd->name)) { | |
90 | printk(KERN_ERR "zorro7xx: cannot reserve region 0x%lx, abort\n", | |
91 | board); | |
92 | return -EBUSY; | |
93 | } | |
94 | ||
bbfbbbc1 MK |
95 | hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); |
96 | if (!hostdata) { | |
45804fbb KJ |
97 | printk(KERN_ERR "zorro7xx: Failed to allocate host data\n"); |
98 | goto out_release; | |
99 | } | |
100 | ||
45804fbb KJ |
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 | ||
3ac709c1 | 134 | zorro_set_drvdata(z, host); |
45804fbb KJ |
135 | scsi_scan_host(host); |
136 | ||
137 | return 0; | |
138 | ||
139 | out_put_host: | |
140 | scsi_host_put(host); | |
141 | out_free: | |
142 | if (ioaddr > 0x01000000) | |
143 | iounmap(hostdata->base); | |
144 | kfree(hostdata); | |
145 | out_release: | |
146 | zorro_release_device(z); | |
147 | ||
148 | return -ENODEV; | |
149 | } | |
150 | ||
151 | static __devexit void zorro7xx_remove_one(struct zorro_dev *z) | |
152 | { | |
3ac709c1 | 153 | struct Scsi_Host *host = zorro_get_drvdata(z); |
45804fbb KJ |
154 | struct NCR_700_Host_Parameters *hostdata = shost_priv(host); |
155 | ||
156 | scsi_remove_host(host); | |
157 | ||
158 | NCR_700_release(host); | |
159 | kfree(hostdata); | |
160 | free_irq(host->irq, host); | |
161 | zorro_release_device(z); | |
162 | } | |
163 | ||
164 | static struct zorro_driver zorro7xx_driver = { | |
165 | .name = "zorro7xx-scsi", | |
166 | .id_table = zorro7xx_zorro_tbl, | |
167 | .probe = zorro7xx_init_one, | |
168 | .remove = __devexit_p(zorro7xx_remove_one), | |
169 | }; | |
170 | ||
171 | static int __init zorro7xx_scsi_init(void) | |
172 | { | |
173 | return zorro_register_driver(&zorro7xx_driver); | |
174 | } | |
175 | ||
176 | static void __exit zorro7xx_scsi_exit(void) | |
177 | { | |
178 | zorro_unregister_driver(&zorro7xx_driver); | |
179 | } | |
180 | ||
181 | module_init(zorro7xx_scsi_init); | |
182 | module_exit(zorro7xx_scsi_exit); |