3 dmx3191d.c - midlevel driver for the Domex DMX3191D SCSI card.
4 Copyright (C) 2000 by Massimo Piccioni <dafastidio@libero.it>
6 Based on the generic NCR5380 driver by Drew Eckhardt et al.
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.
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.
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.
24 #include <asm/system.h>
25 #include <linux/blkdev.h>
26 #include <linux/init.h>
27 #include <linux/ioport.h>
28 #include <linux/module.h>
29 #include <linux/pci.h>
30 #include <linux/sched.h>
31 #include <linux/signal.h>
32 #include <linux/stat.h>
33 #include <linux/interrupt.h>
34 #include <linux/delay.h>
37 #include <scsi/scsi_host.h>
41 /* play with these values to tune up your system performances */
42 /* default setting from g_NCR5380.c */
46 #define USLEEP_SLEEP 20
47 #define USLEEP_WAITLONG 500
55 static int __init
dmx3191d_detect(Scsi_Host_Template
*tmpl
) {
57 struct Scsi_Host
*instance
= NULL
;
58 struct pci_dev
*pdev
= NULL
;
60 tmpl
->proc_name
= DMX3191D_DRIVER_NAME
;
62 while ((pdev
= pci_find_device(PCI_VENDOR_ID_DOMEX
,
63 PCI_DEVICE_ID_DOMEX_DMX3191D
, pdev
))) {
66 if (pci_enable_device(pdev
))
69 port
= pci_resource_start (pdev
, 0);
71 if (!request_region(port
, DMX3191D_REGION
, DMX3191D_DRIVER_NAME
)) {
72 printk(KERN_ERR
"dmx3191: region 0x%lx-0x%lx already reserved\n",
73 port
, port
+ DMX3191D_REGION
);
77 instance
= scsi_register(tmpl
, sizeof(struct NCR5380_hostdata
));
80 release_region(port
, DMX3191D_REGION
);
83 scsi_set_device(instance
, &pdev
->dev
);
84 instance
->io_port
= port
;
85 instance
->irq
= pdev
->irq
;
86 NCR5380_init(instance
, FLAG_NO_PSEUDO_DMA
| FLAG_DTC3181E
);
88 if (request_irq(pdev
->irq
, dmx3191d_intr
, SA_SHIRQ
,
89 DMX3191D_DRIVER_NAME
, instance
)) {
90 printk(KERN_WARNING
"dmx3191: IRQ %d not available - switching to polled mode.\n", pdev
->irq
);
91 /* Steam powered scsi controllers run without an IRQ
93 instance
->irq
= SCSI_IRQ_NONE
;
101 static const char * dmx3191d_info(struct Scsi_Host
*host
) {
102 static const char *info
="Domex DMX3191D";
107 static int dmx3191d_release_resources(struct Scsi_Host
*instance
)
109 if(instance
->irq
!=SCSI_IRQ_NONE
)
110 free_irq(instance
->irq
, instance
);
111 NCR5380_exit(instance
);
112 release_region(instance
->io_port
, DMX3191D_REGION
);
117 MODULE_LICENSE("GPL");
119 static Scsi_Host_Template driver_template
= {
120 .proc_info
= dmx3191d_proc_info
,
121 .name
= "Domex DMX3191D",
122 .detect
= dmx3191d_detect
,
123 .release
= dmx3191d_release_resources
,
124 .info
= dmx3191d_info
,
125 .queuecommand
= dmx3191d_queue_command
,
126 .eh_abort_handler
= dmx3191d_abort
,
127 .eh_bus_reset_handler
= dmx3191d_bus_reset
,
128 .eh_device_reset_handler
= dmx3191d_device_reset
,
129 .eh_host_reset_handler
= dmx3191d_host_reset
,
132 .sg_tablesize
= SG_ALL
,
134 .use_clustering
= DISABLE_CLUSTERING
,
136 #include "scsi_module.c"