aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/scsi/zorro7xx.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi/zorro7xx.c')
-rw-r--r--drivers/scsi/zorro7xx.c180
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
22MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / Kars de Jong <jongk@linux-m68k.org>");
23MODULE_DESCRIPTION("Amiga Zorro NCR53C710 driver");
24MODULE_LICENSE("GPL");
25
26
27static struct scsi_host_template zorro7xx_scsi_driver_template = {
28 .proc_name = "zorro7xx",
29 .this_id = 7,
30 .module = THIS_MODULE,
31};
32
33static 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
45static 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
69static 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
149static __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
162static 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
169static int __init zorro7xx_scsi_init(void)
170{
171 return zorro_register_driver(&zorro7xx_driver);
172}
173
174static void __exit zorro7xx_scsi_exit(void)
175{
176 zorro_unregister_driver(&zorro7xx_driver);
177}
178
179module_init(zorro7xx_scsi_init);
180module_exit(zorro7xx_scsi_exit);