Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
[linux-2.6] / drivers / scsi / zorro7xx.c
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;
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 = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
93         if (!hostdata) {
94                 printk(KERN_ERR "zorro7xx: Failed to allocate host data\n");
95                 goto out_release;
96         }
97
98         /* Fill in the required pieces of hostdata */
99         if (ioaddr > 0x01000000)
100                 hostdata->base = ioremap(ioaddr, zorro_resource_len(z));
101         else
102                 hostdata->base = (void __iomem *)ZTWO_VADDR(ioaddr);
103
104         hostdata->clock = 50;
105         hostdata->chip710 = 1;
106
107         /* Settings for at least WarpEngine 40xx */
108         hostdata->ctest7_extra = CTEST7_TT1;
109
110         zorro7xx_scsi_driver_template.name = zdd->name;
111
112         /* and register the chip */
113         host = NCR_700_detect(&zorro7xx_scsi_driver_template, hostdata,
114                               &z->dev);
115         if (!host) {
116                 printk(KERN_ERR "zorro7xx: No host detected; "
117                                 "board configuration problem?\n");
118                 goto out_free;
119         }
120
121         host->this_id = 7;
122         host->base = ioaddr;
123         host->irq = IRQ_AMIGA_PORTS;
124
125         if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "zorro7xx-scsi",
126                         host)) {
127                 printk(KERN_ERR "zorro7xx: request_irq failed\n");
128                 goto out_put_host;
129         }
130
131         zorro_set_drvdata(z, host);
132         scsi_scan_host(host);
133
134         return 0;
135
136  out_put_host:
137         scsi_host_put(host);
138  out_free:
139         if (ioaddr > 0x01000000)
140                 iounmap(hostdata->base);
141         kfree(hostdata);
142  out_release:
143         zorro_release_device(z);
144
145         return -ENODEV;
146 }
147
148 static __devexit void zorro7xx_remove_one(struct zorro_dev *z)
149 {
150         struct Scsi_Host *host = zorro_get_drvdata(z);
151         struct NCR_700_Host_Parameters *hostdata = shost_priv(host);
152
153         scsi_remove_host(host);
154
155         NCR_700_release(host);
156         kfree(hostdata);
157         free_irq(host->irq, host);
158         zorro_release_device(z);
159 }
160
161 static struct zorro_driver zorro7xx_driver = {
162         .name     = "zorro7xx-scsi",
163         .id_table = zorro7xx_zorro_tbl,
164         .probe    = zorro7xx_init_one,
165         .remove   = __devexit_p(zorro7xx_remove_one),
166 };
167
168 static int __init zorro7xx_scsi_init(void)
169 {
170         return zorro_register_driver(&zorro7xx_driver);
171 }
172
173 static void __exit zorro7xx_scsi_exit(void)
174 {
175         zorro_unregister_driver(&zorro7xx_driver);
176 }
177
178 module_init(zorro7xx_scsi_init);
179 module_exit(zorro7xx_scsi_exit);