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
17 #include <asm/amigahw.h>
18 #include <asm/amigaints.h>
19
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 };
71
72 static int __devinit zorro7xx_init_one(struct zorro_dev *z,
73 const struct zorro_device_id *ent)
74 {
75 struct Scsi_Host *host;
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
95 hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
96 if (!hostdata) {
97 printk(KERN_ERR "zorro7xx: Failed to allocate host data\n");
98 goto out_release;
99 }
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 zorro_set_drvdata(z, host);
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 {
153 struct Scsi_Host *host = zorro_get_drvdata(z);
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);
183
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