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74ba9207 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /* |
3 | dmx3191d.c - driver for the Domex DMX3191D SCSI card. | |
4 | Copyright (C) 2000 by Massimo Piccioni <dafastidio@libero.it> | |
5 | Portions Copyright (C) 2004 by Christoph Hellwig <hch@lst.de> | |
6 | ||
7 | Based on the generic NCR5380 driver by Drew Eckhardt et al. | |
8 | ||
1da177e4 LT |
9 | */ |
10 | ||
11 | #include <linux/init.h> | |
12 | #include <linux/ioport.h> | |
13 | #include <linux/kernel.h> | |
14 | #include <linux/module.h> | |
15 | #include <linux/pci.h> | |
16 | #include <linux/interrupt.h> | |
17 | #include <asm/io.h> | |
18 | ||
19 | #include <scsi/scsi_host.h> | |
20 | ||
21 | /* | |
6070d81e | 22 | * Definitions for the generic 5380 driver. |
1da177e4 | 23 | */ |
1da177e4 | 24 | |
61e1ce58 FT |
25 | #define NCR5380_read(reg) inb(hostdata->base + (reg)) |
26 | #define NCR5380_write(reg, value) outb(value, hostdata->base + (reg)) | |
1da177e4 | 27 | |
4a98f896 FT |
28 | #define NCR5380_dma_xfer_len NCR5380_dma_xfer_none |
29 | #define NCR5380_dma_recv_setup NCR5380_dma_setup_none | |
30 | #define NCR5380_dma_send_setup NCR5380_dma_setup_none | |
31 | #define NCR5380_dma_residual NCR5380_dma_residual_none | |
f825e40b | 32 | |
acfc8cad | 33 | #define NCR5380_implementation_fields /* none */ |
1da177e4 | 34 | |
1da177e4 LT |
35 | #include "NCR5380.h" |
36 | #include "NCR5380.c" | |
37 | ||
38 | #define DMX3191D_DRIVER_NAME "dmx3191d" | |
39 | #define DMX3191D_REGION_LEN 8 | |
40 | ||
41 | ||
42 | static struct scsi_host_template dmx3191d_driver_template = { | |
aa2e2cb1 | 43 | .module = THIS_MODULE, |
1da177e4 LT |
44 | .proc_name = DMX3191D_DRIVER_NAME, |
45 | .name = "Domex DMX3191D", | |
8c32513b | 46 | .info = NCR5380_info, |
1da177e4 LT |
47 | .queuecommand = NCR5380_queue_command, |
48 | .eh_abort_handler = NCR5380_abort, | |
12e5fc66 | 49 | .eh_host_reset_handler = NCR5380_host_reset, |
1da177e4 LT |
50 | .can_queue = 32, |
51 | .this_id = 7, | |
52 | .sg_tablesize = SG_ALL, | |
53 | .cmd_per_lun = 2, | |
4af14d11 | 54 | .dma_boundary = PAGE_SIZE - 1, |
32b26a10 | 55 | .cmd_size = NCR5380_CMD_SIZE, |
1da177e4 LT |
56 | }; |
57 | ||
6f039790 GKH |
58 | static int dmx3191d_probe_one(struct pci_dev *pdev, |
59 | const struct pci_device_id *id) | |
1da177e4 LT |
60 | { |
61 | struct Scsi_Host *shost; | |
820682b1 | 62 | struct NCR5380_hostdata *hostdata; |
1da177e4 LT |
63 | unsigned long io; |
64 | int error = -ENODEV; | |
65 | ||
66 | if (pci_enable_device(pdev)) | |
67 | goto out; | |
68 | ||
69 | io = pci_resource_start(pdev, 0); | |
70 | if (!request_region(io, DMX3191D_REGION_LEN, DMX3191D_DRIVER_NAME)) { | |
71 | printk(KERN_ERR "dmx3191: region 0x%lx-0x%lx already reserved\n", | |
72 | io, io + DMX3191D_REGION_LEN); | |
73 | goto out_disable_device; | |
74 | } | |
75 | ||
76 | shost = scsi_host_alloc(&dmx3191d_driver_template, | |
77 | sizeof(struct NCR5380_hostdata)); | |
78 | if (!shost) | |
79 | goto out_release_region; | |
820682b1 FT |
80 | |
81 | hostdata = shost_priv(shost); | |
82 | hostdata->base = io; | |
1da177e4 | 83 | |
fd9cd67c FT |
84 | /* This card does not seem to raise an interrupt on pdev->irq. |
85 | * Steam-powered SCSI controllers run without an IRQ anyway. | |
86 | */ | |
87 | shost->irq = NO_IRQ; | |
1da177e4 | 88 | |
7e9ec8d9 | 89 | error = NCR5380_init(shost, 0); |
0ad0eff9 FT |
90 | if (error) |
91 | goto out_host_put; | |
1da177e4 | 92 | |
b6488f97 FT |
93 | NCR5380_maybe_reset_bus(shost); |
94 | ||
1da177e4 LT |
95 | pci_set_drvdata(pdev, shost); |
96 | ||
97 | error = scsi_add_host(shost, &pdev->dev); | |
98 | if (error) | |
0ad0eff9 | 99 | goto out_exit; |
1da177e4 LT |
100 | |
101 | scsi_scan_host(shost); | |
102 | return 0; | |
103 | ||
0ad0eff9 FT |
104 | out_exit: |
105 | NCR5380_exit(shost); | |
106 | out_host_put: | |
107 | scsi_host_put(shost); | |
1da177e4 | 108 | out_release_region: |
c3c026ba | 109 | release_region(io, DMX3191D_REGION_LEN); |
1da177e4 LT |
110 | out_disable_device: |
111 | pci_disable_device(pdev); | |
112 | out: | |
113 | return error; | |
114 | } | |
115 | ||
6f039790 | 116 | static void dmx3191d_remove_one(struct pci_dev *pdev) |
1da177e4 LT |
117 | { |
118 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
820682b1 FT |
119 | struct NCR5380_hostdata *hostdata = shost_priv(shost); |
120 | unsigned long io = hostdata->base; | |
1da177e4 LT |
121 | |
122 | scsi_remove_host(shost); | |
123 | ||
124 | NCR5380_exit(shost); | |
1da177e4 | 125 | scsi_host_put(shost); |
0ad0eff9 FT |
126 | release_region(io, DMX3191D_REGION_LEN); |
127 | pci_disable_device(pdev); | |
1da177e4 LT |
128 | } |
129 | ||
130 | static struct pci_device_id dmx3191d_pci_tbl[] = { | |
131 | {PCI_VENDOR_ID_DOMEX, PCI_DEVICE_ID_DOMEX_DMX3191D, | |
132 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4}, | |
133 | { } | |
134 | }; | |
135 | MODULE_DEVICE_TABLE(pci, dmx3191d_pci_tbl); | |
136 | ||
137 | static struct pci_driver dmx3191d_pci_driver = { | |
138 | .name = DMX3191D_DRIVER_NAME, | |
139 | .id_table = dmx3191d_pci_tbl, | |
140 | .probe = dmx3191d_probe_one, | |
6f039790 | 141 | .remove = dmx3191d_remove_one, |
1da177e4 LT |
142 | }; |
143 | ||
5e315016 | 144 | module_pci_driver(dmx3191d_pci_driver); |
1da177e4 LT |
145 | |
146 | MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>"); | |
147 | MODULE_DESCRIPTION("Domex DMX3191D SCSI driver"); | |
148 | MODULE_LICENSE("GPL"); |