xref: /openbmc/linux/drivers/scsi/pcmcia/fdomain_cs.c (revision 632c4ae6)
1 // SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1)
2 /*
3  * Driver for Future Domain-compatible PCMCIA SCSI cards
4  * Copyright 2019 Ondrej Zary
5  *
6  * The initial developer of the original code is David A. Hinds
7  * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
8  * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
9  */
10 
11 #include <linux/module.h>
12 #include <linux/init.h>
13 #include <scsi/scsi_host.h>
14 #include <pcmcia/cistpl.h>
15 #include <pcmcia/ds.h>
16 #include "fdomain.h"
17 
18 MODULE_AUTHOR("Ondrej Zary, David Hinds");
19 MODULE_DESCRIPTION("Future Domain PCMCIA SCSI driver");
20 MODULE_LICENSE("Dual MPL/GPL");
21 
fdomain_config_check(struct pcmcia_device * p_dev,void * priv_data)22 static int fdomain_config_check(struct pcmcia_device *p_dev, void *priv_data)
23 {
24 	p_dev->io_lines = 10;
25 	p_dev->resource[0]->end = FDOMAIN_REGION_SIZE;
26 	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
27 	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
28 	return pcmcia_request_io(p_dev);
29 }
30 
fdomain_probe(struct pcmcia_device * link)31 static int fdomain_probe(struct pcmcia_device *link)
32 {
33 	int ret;
34 	struct Scsi_Host *sh;
35 
36 	link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
37 	link->config_regs = PRESENT_OPTION;
38 
39 	ret = pcmcia_loop_config(link, fdomain_config_check, NULL);
40 	if (ret)
41 		return ret;
42 
43 	ret = pcmcia_enable_device(link);
44 	if (ret)
45 		goto fail_disable;
46 
47 	if (!request_region(link->resource[0]->start, FDOMAIN_REGION_SIZE,
48 			    "fdomain_cs")) {
49 		ret = -EBUSY;
50 		goto fail_disable;
51 	}
52 
53 	sh = fdomain_create(link->resource[0]->start, link->irq, 7, &link->dev);
54 	if (!sh) {
55 		dev_err(&link->dev, "Controller initialization failed");
56 		ret = -ENODEV;
57 		goto fail_release;
58 	}
59 
60 	link->priv = sh;
61 
62 	return 0;
63 
64 fail_release:
65 	release_region(link->resource[0]->start, FDOMAIN_REGION_SIZE);
66 fail_disable:
67 	pcmcia_disable_device(link);
68 	return ret;
69 }
70 
fdomain_remove(struct pcmcia_device * link)71 static void fdomain_remove(struct pcmcia_device *link)
72 {
73 	fdomain_destroy(link->priv);
74 	release_region(link->resource[0]->start, FDOMAIN_REGION_SIZE);
75 	pcmcia_disable_device(link);
76 }
77 
78 static const struct pcmcia_device_id fdomain_ids[] = {
79 	PCMCIA_DEVICE_PROD_ID12("IBM Corp.", "SCSI PCMCIA Card", 0xe3736c88,
80 				0x859cad20),
81 	PCMCIA_DEVICE_PROD_ID1("SCSI PCMCIA Adapter Card", 0x8dacb57e),
82 	PCMCIA_DEVICE_PROD_ID12(" SIMPLE TECHNOLOGY Corporation",
83 				"SCSI PCMCIA Credit Card Controller",
84 				0x182bdafe, 0xc80d106f),
85 	PCMCIA_DEVICE_NULL,
86 };
87 MODULE_DEVICE_TABLE(pcmcia, fdomain_ids);
88 
89 static struct pcmcia_driver fdomain_cs_driver = {
90 	.owner		= THIS_MODULE,
91 	.name		= "fdomain_cs",
92 	.probe		= fdomain_probe,
93 	.remove		= fdomain_remove,
94 	.id_table       = fdomain_ids,
95 };
96 
97 module_pcmcia_driver(fdomain_cs_driver);
98