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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/scsi/dmx3191d.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/scsi/dmx3191d.c')
-rw-r--r--drivers/scsi/dmx3191d.c173
1 files changed, 173 insertions, 0 deletions
diff --git a/drivers/scsi/dmx3191d.c b/drivers/scsi/dmx3191d.c
new file mode 100644
index 000000000000..1d2242403db8
--- /dev/null
+++ b/drivers/scsi/dmx3191d.c
@@ -0,0 +1,173 @@
1/*
2 dmx3191d.c - driver for the Domex DMX3191D SCSI card.
3 Copyright (C) 2000 by Massimo Piccioni <dafastidio@libero.it>
4 Portions Copyright (C) 2004 by Christoph Hellwig <hch@lst.de>
5
6 Based on the generic NCR5380 driver by Drew Eckhardt et al.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21*/
22
23#include <linux/init.h>
24#include <linux/ioport.h>
25#include <linux/kernel.h>
26#include <linux/module.h>
27#include <linux/pci.h>
28#include <linux/interrupt.h>
29#include <asm/io.h>
30
31#include <scsi/scsi_host.h>
32
33/*
34 * Defintions for the generic 5380 driver.
35 */
36#define AUTOSENSE
37
38#define NCR5380_read(reg) inb(port + reg)
39#define NCR5380_write(reg, value) outb(value, port + reg)
40
41#define NCR5380_implementation_fields unsigned int port
42#define NCR5380_local_declare() NCR5380_implementation_fields
43#define NCR5380_setup(instance) port = instance->io_port
44
45/*
46 * Includes needed for NCR5380.[ch] (XXX: Move them to NCR5380.h)
47 */
48#include <linux/delay.h>
49#include "scsi.h"
50
51#include "NCR5380.h"
52#include "NCR5380.c"
53
54#define DMX3191D_DRIVER_NAME "dmx3191d"
55#define DMX3191D_REGION_LEN 8
56
57
58static struct scsi_host_template dmx3191d_driver_template = {
59 .proc_name = DMX3191D_DRIVER_NAME,
60 .name = "Domex DMX3191D",
61 .queuecommand = NCR5380_queue_command,
62 .eh_abort_handler = NCR5380_abort,
63 .eh_bus_reset_handler = NCR5380_bus_reset,
64 .eh_device_reset_handler= NCR5380_device_reset,
65 .eh_host_reset_handler = NCR5380_host_reset,
66 .can_queue = 32,
67 .this_id = 7,
68 .sg_tablesize = SG_ALL,
69 .cmd_per_lun = 2,
70 .use_clustering = DISABLE_CLUSTERING,
71};
72
73static int __devinit dmx3191d_probe_one(struct pci_dev *pdev,
74 const struct pci_device_id *id)
75{
76 struct Scsi_Host *shost;
77 unsigned long io;
78 int error = -ENODEV;
79
80 if (pci_enable_device(pdev))
81 goto out;
82
83 io = pci_resource_start(pdev, 0);
84 if (!request_region(io, DMX3191D_REGION_LEN, DMX3191D_DRIVER_NAME)) {
85 printk(KERN_ERR "dmx3191: region 0x%lx-0x%lx already reserved\n",
86 io, io + DMX3191D_REGION_LEN);
87 goto out_disable_device;
88 }
89
90 shost = scsi_host_alloc(&dmx3191d_driver_template,
91 sizeof(struct NCR5380_hostdata));
92 if (!shost)
93 goto out_release_region;
94 shost->io_port = io;
95 shost->irq = pdev->irq;
96
97 NCR5380_init(shost, FLAG_NO_PSEUDO_DMA | FLAG_DTC3181E);
98
99 if (request_irq(pdev->irq, NCR5380_intr, SA_SHIRQ,
100 DMX3191D_DRIVER_NAME, shost)) {
101 /*
102 * Steam powered scsi controllers run without an IRQ anyway
103 */
104 printk(KERN_WARNING "dmx3191: IRQ %d not available - "
105 "switching to polled mode.\n", pdev->irq);
106 shost->irq = SCSI_IRQ_NONE;
107 }
108
109 pci_set_drvdata(pdev, shost);
110
111 error = scsi_add_host(shost, &pdev->dev);
112 if (error)
113 goto out_free_irq;
114
115 scsi_scan_host(shost);
116 return 0;
117
118 out_free_irq:
119 free_irq(shost->irq, shost);
120 out_release_region:
121 release_region(shost->io_port, DMX3191D_REGION_LEN);
122 out_disable_device:
123 pci_disable_device(pdev);
124 out:
125 return error;
126}
127
128static void __devexit dmx3191d_remove_one(struct pci_dev *pdev)
129{
130 struct Scsi_Host *shost = pci_get_drvdata(pdev);
131
132 scsi_remove_host(shost);
133
134 NCR5380_exit(shost);
135
136 if (shost->irq != SCSI_IRQ_NONE)
137 free_irq(shost->irq, shost);
138 release_region(shost->io_port, DMX3191D_REGION_LEN);
139 pci_disable_device(pdev);
140
141 scsi_host_put(shost);
142}
143
144static struct pci_device_id dmx3191d_pci_tbl[] = {
145 {PCI_VENDOR_ID_DOMEX, PCI_DEVICE_ID_DOMEX_DMX3191D,
146 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
147 { }
148};
149MODULE_DEVICE_TABLE(pci, dmx3191d_pci_tbl);
150
151static struct pci_driver dmx3191d_pci_driver = {
152 .name = DMX3191D_DRIVER_NAME,
153 .id_table = dmx3191d_pci_tbl,
154 .probe = dmx3191d_probe_one,
155 .remove = __devexit_p(dmx3191d_remove_one),
156};
157
158static int __init dmx3191d_init(void)
159{
160 return pci_module_init(&dmx3191d_pci_driver);
161}
162
163static void __exit dmx3191d_exit(void)
164{
165 pci_unregister_driver(&dmx3191d_pci_driver);
166}
167
168module_init(dmx3191d_init);
169module_exit(dmx3191d_exit);
170
171MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
172MODULE_DESCRIPTION("Domex DMX3191D SCSI driver");
173MODULE_LICENSE("GPL");