aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/scsi/zorro7xx.c
blob: aff31991aea9808f5f98180cb126be87be12db26 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
/*
 * Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux.
 *		Amiga MacroSystemUS WarpEngine SCSI controller.
 *		Amiga Technologies/DKB A4091 SCSI controller.
 *
 * Written 1997 by Alan Hourihane <alanh@fairlite.demon.co.uk>
 * plus modifications of the 53c7xx.c driver to support the Amiga.
 *
 * Rewritten to use 53c700.c by Kars de Jong <jongk@linux-m68k.org>
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/zorro.h>
#include <linux/slab.h>

#include <asm/amigahw.h>
#include <asm/amigaints.h>

#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_spi.h>

#include "53c700.h"

MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / Kars de Jong <jongk@linux-m68k.org>");
MODULE_DESCRIPTION("Amiga Zorro NCR53C710 driver");
MODULE_LICENSE("GPL");


static struct scsi_host_template zorro7xx_scsi_driver_template = {
	.proc_name	= "zorro7xx",
	.this_id	= 7,
	.module		= THIS_MODULE,
};

static struct zorro_driver_data {
	const char *name;
	unsigned long offset;
	int absolute;	/* offset is absolute address */
} zorro7xx_driver_data[] = {
	{ .name = "PowerUP 603e+", .offset = 0xf40000, .absolute = 1 },
	{ .name = "WarpEngine 40xx", .offset = 0x40000 },
	{ .name = "A4091", .offset = 0x800000 },
	{ .name = "GForce 040/060", .offset = 0x40000 },
	{ 0 }
};

static struct zorro_device_id zorro7xx_zorro_tbl[] = {
	{
		.id = ZORRO_PROD_PHASE5_BLIZZARD_603E_PLUS,
		.driver_data = (unsigned long)&zorro7xx_driver_data[0],
	},
	{
		.id = ZORRO_PROD_MACROSYSTEMS_WARP_ENGINE_40xx,
		.driver_data = (unsigned long)&zorro7xx_driver_data[1],
	},
	{
		.id = ZORRO_PROD_CBM_A4091_1,
		.driver_data = (unsigned long)&zorro7xx_driver_data[2],
	},
	{
		.id = ZORRO_PROD_CBM_A4091_2,
		.driver_data = (unsigned long)&zorro7xx_driver_data[2],
	},
	{
		.id = ZORRO_PROD_GVP_GFORCE_040_060,
		.driver_data = (unsigned long)&zorro7xx_driver_data[3],
	},
	{ 0 }
};
MODULE_DEVICE_TABLE(zorro, zorro7xx_zorro_tbl);

static int zorro7xx_init_one(struct zorro_dev *z,
			     const struct zorro_device_id *ent)
{
	struct Scsi_Host *host;
	struct NCR_700_Host_Parameters *hostdata;
	struct zorro_driver_data *zdd;
	unsigned long board, ioaddr;

	board = zorro_resource_start(z);
	zdd = (struct zorro_driver_data *)ent->driver_data;

	if (zdd->absolute) {
		ioaddr = zdd->offset;
	} else {
		ioaddr = board + zdd->offset;
	}

	if (!zorro_request_device(z, zdd->name)) {
		printk(KERN_ERR "zorro7xx: cannot reserve region 0x%lx, abort\n",
		       board);
		return -EBUSY;
	}

	hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
	if (!hostdata) {
		printk(KERN_ERR "zorro7xx: Failed to allocate host data\n");
		goto out_release;
	}

	/* Fill in the required pieces of hostdata */
	if (ioaddr > 0x01000000)
		hostdata->base = ioremap(ioaddr, zorro_resource_len(z));
	else
		hostdata->base = ZTWO_VADDR(ioaddr);

	hostdata->clock = 50;
	hostdata->chip710 = 1;

	/* Settings for at least WarpEngine 40xx */
	hostdata->ctest7_extra = CTEST7_TT1;

	zorro7xx_scsi_driver_template.name = zdd->name;

	/* and register the chip */
	host = NCR_700_detect(&zorro7xx_scsi_driver_template, hostdata,
			      &z->dev);
	if (!host) {
		printk(KERN_ERR "zorro7xx: No host detected; "
				"board configuration problem?\n");
		goto out_free;
	}

	host->this_id = 7;
	host->base = ioaddr;
	host->irq = IRQ_AMIGA_PORTS;

	if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "zorro7xx-scsi",
			host)) {
		printk(KERN_ERR "zorro7xx: request_irq failed\n");
		goto out_put_host;
	}

	zorro_set_drvdata(z, host);
	scsi_scan_host(host);

	return 0;

 out_put_host:
	scsi_host_put(host);
 out_free:
	if (ioaddr > 0x01000000)
		iounmap(hostdata->base);
	kfree(hostdata);
 out_release:
	zorro_release_device(z);

	return -ENODEV;
}

static void zorro7xx_remove_one(struct zorro_dev *z)
{
	struct Scsi_Host *host = zorro_get_drvdata(z);
	struct NCR_700_Host_Parameters *hostdata = shost_priv(host);

	scsi_remove_host(host);

	NCR_700_release(host);
	kfree(hostdata);
	free_irq(host->irq, host);
	zorro_release_device(z);
}

static struct zorro_driver zorro7xx_driver = {
	.name	  = "zorro7xx-scsi",
	.id_table = zorro7xx_zorro_tbl,
	.probe	  = zorro7xx_init_one,
	.remove	  = zorro7xx_remove_one,
};

static int __init zorro7xx_scsi_init(void)
{
	return zorro_register_driver(&zorro7xx_driver);
}

static void __exit zorro7xx_scsi_exit(void)
{
	zorro_unregister_driver(&zorro7xx_driver);
}

module_init(zorro7xx_scsi_init);
module_exit(zorro7xx_scsi_exit);