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1da177e4 LT |
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 | /* | |
6070d81e | 34 | * Definitions for the generic 5380 driver. |
1da177e4 | 35 | */ |
1da177e4 | 36 | |
fd9cd67c FT |
37 | #define DONT_USE_INTR |
38 | ||
1da177e4 LT |
39 | #define NCR5380_read(reg) inb(port + reg) |
40 | #define NCR5380_write(reg, value) outb(value, port + reg) | |
41 | ||
acfc8cad FT |
42 | #define NCR5380_implementation_fields /* none */ |
43 | #define NCR5380_local_declare() unsigned int port | |
1da177e4 LT |
44 | #define NCR5380_setup(instance) port = instance->io_port |
45 | ||
46 | /* | |
47 | * Includes needed for NCR5380.[ch] (XXX: Move them to NCR5380.h) | |
48 | */ | |
49 | #include <linux/delay.h> | |
1da177e4 LT |
50 | |
51 | #include "NCR5380.h" | |
52 | #include "NCR5380.c" | |
53 | ||
54 | #define DMX3191D_DRIVER_NAME "dmx3191d" | |
55 | #define DMX3191D_REGION_LEN 8 | |
56 | ||
57 | ||
58 | static struct scsi_host_template dmx3191d_driver_template = { | |
59 | .proc_name = DMX3191D_DRIVER_NAME, | |
60 | .name = "Domex DMX3191D", | |
8c32513b | 61 | .info = NCR5380_info, |
1da177e4 LT |
62 | .queuecommand = NCR5380_queue_command, |
63 | .eh_abort_handler = NCR5380_abort, | |
64 | .eh_bus_reset_handler = NCR5380_bus_reset, | |
1da177e4 LT |
65 | .can_queue = 32, |
66 | .this_id = 7, | |
67 | .sg_tablesize = SG_ALL, | |
68 | .cmd_per_lun = 2, | |
69 | .use_clustering = DISABLE_CLUSTERING, | |
70 | }; | |
71 | ||
6f039790 GKH |
72 | static int dmx3191d_probe_one(struct pci_dev *pdev, |
73 | const struct pci_device_id *id) | |
1da177e4 LT |
74 | { |
75 | struct Scsi_Host *shost; | |
76 | unsigned long io; | |
77 | int error = -ENODEV; | |
78 | ||
79 | if (pci_enable_device(pdev)) | |
80 | goto out; | |
81 | ||
82 | io = pci_resource_start(pdev, 0); | |
83 | if (!request_region(io, DMX3191D_REGION_LEN, DMX3191D_DRIVER_NAME)) { | |
84 | printk(KERN_ERR "dmx3191: region 0x%lx-0x%lx already reserved\n", | |
85 | io, io + DMX3191D_REGION_LEN); | |
86 | goto out_disable_device; | |
87 | } | |
88 | ||
89 | shost = scsi_host_alloc(&dmx3191d_driver_template, | |
90 | sizeof(struct NCR5380_hostdata)); | |
91 | if (!shost) | |
92 | goto out_release_region; | |
93 | shost->io_port = io; | |
1da177e4 | 94 | |
fd9cd67c FT |
95 | /* This card does not seem to raise an interrupt on pdev->irq. |
96 | * Steam-powered SCSI controllers run without an IRQ anyway. | |
97 | */ | |
98 | shost->irq = NO_IRQ; | |
1da177e4 | 99 | |
fd9cd67c | 100 | NCR5380_init(shost, FLAG_NO_PSEUDO_DMA | FLAG_DTC3181E); |
1da177e4 LT |
101 | |
102 | pci_set_drvdata(pdev, shost); | |
103 | ||
104 | error = scsi_add_host(shost, &pdev->dev); | |
105 | if (error) | |
fd9cd67c | 106 | goto out_release_region; |
1da177e4 LT |
107 | |
108 | scsi_scan_host(shost); | |
109 | return 0; | |
110 | ||
1da177e4 | 111 | out_release_region: |
c3c026ba | 112 | release_region(io, DMX3191D_REGION_LEN); |
1da177e4 LT |
113 | out_disable_device: |
114 | pci_disable_device(pdev); | |
115 | out: | |
116 | return error; | |
117 | } | |
118 | ||
6f039790 | 119 | static void dmx3191d_remove_one(struct pci_dev *pdev) |
1da177e4 LT |
120 | { |
121 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
122 | ||
123 | scsi_remove_host(shost); | |
124 | ||
125 | NCR5380_exit(shost); | |
126 | ||
1da177e4 LT |
127 | release_region(shost->io_port, DMX3191D_REGION_LEN); |
128 | pci_disable_device(pdev); | |
129 | ||
130 | scsi_host_put(shost); | |
131 | } | |
132 | ||
133 | static struct pci_device_id dmx3191d_pci_tbl[] = { | |
134 | {PCI_VENDOR_ID_DOMEX, PCI_DEVICE_ID_DOMEX_DMX3191D, | |
135 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4}, | |
136 | { } | |
137 | }; | |
138 | MODULE_DEVICE_TABLE(pci, dmx3191d_pci_tbl); | |
139 | ||
140 | static struct pci_driver dmx3191d_pci_driver = { | |
141 | .name = DMX3191D_DRIVER_NAME, | |
142 | .id_table = dmx3191d_pci_tbl, | |
143 | .probe = dmx3191d_probe_one, | |
6f039790 | 144 | .remove = dmx3191d_remove_one, |
1da177e4 LT |
145 | }; |
146 | ||
147 | static int __init dmx3191d_init(void) | |
148 | { | |
dcbccbde | 149 | return pci_register_driver(&dmx3191d_pci_driver); |
1da177e4 LT |
150 | } |
151 | ||
152 | static void __exit dmx3191d_exit(void) | |
153 | { | |
154 | pci_unregister_driver(&dmx3191d_pci_driver); | |
155 | } | |
156 | ||
157 | module_init(dmx3191d_init); | |
158 | module_exit(dmx3191d_exit); | |
159 | ||
160 | MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>"); | |
161 | MODULE_DESCRIPTION("Domex DMX3191D SCSI driver"); | |
162 | MODULE_LICENSE("GPL"); |