1/* -*- mode: c; c-basic-offset: 8 -*- */
2
3/* SNI RM driver
4 *
5 * Copyright (C) 2001 by James.Bottomley@HansenPartnership.com
6**-----------------------------------------------------------------------------
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 */
24
25/*
26 * Based on lasi700.c
27 */
28
29#include <linux/kernel.h>
30#include <linux/module.h>
31#include <linux/init.h>
32#include <linux/types.h>
33#include <linux/stat.h>
34#include <linux/mm.h>
35#include <linux/blkdev.h>
36#include <linux/sched.h>
37#include <linux/ioport.h>
38#include <linux/dma-mapping.h>
39#include <linux/platform_device.h>
40
41#include <asm/page.h>
42#include <asm/pgtable.h>
43#include <asm/irq.h>
44#include <asm/delay.h>
45
46#include <scsi/scsi_host.h>
47#include <scsi/scsi_device.h>
48#include <scsi/scsi_transport.h>
49#include <scsi/scsi_transport_spi.h>
50
51#include "53c700.h"
52
53MODULE_AUTHOR("Thomas Bogend�rfer");
54MODULE_DESCRIPTION("SNI RM 53c710 SCSI Driver");
55MODULE_LICENSE("GPL");
56
57#define SNIRM710_CLOCK	32
58
59static struct scsi_host_template snirm710_template = {
60	.name		= "SNI RM SCSI 53c710",
61	.proc_name	= "snirm_53c710",
62	.this_id	= 7,
63	.module		= THIS_MODULE,
64};
65
66static int __init snirm710_probe(struct platform_device *dev)
67{
68	unsigned long base;
69	struct NCR_700_Host_Parameters *hostdata;
70	struct Scsi_Host *host;
71	struct  resource *res;
72
73	res = platform_get_resource(dev, IORESOURCE_MEM, 0);
74	if (!res)
75		return -ENODEV;
76
77	base = res->start;
78	hostdata = kzalloc(sizeof(*hostdata), GFP_KERNEL);
79	if (!hostdata) {
80		printk(KERN_ERR "%s: Failed to allocate host data\n",
81		       dev->dev.bus_id);
82		return -ENOMEM;
83	}
84
85	hostdata->dev = &dev->dev;
86	dma_set_mask(&dev->dev, DMA_32BIT_MASK);
87	hostdata->base = ioremap_nocache(CPHYSADDR(base), 0x100);
88	hostdata->differential = 0;
89
90	hostdata->clock = SNIRM710_CLOCK;
91	hostdata->force_le_on_be = 1;
92	hostdata->chip710 = 1;
93	hostdata->burst_length = 4;
94
95	host = NCR_700_detect(&snirm710_template, hostdata, &dev->dev);
96	if (!host)
97		goto out_kfree;
98	host->this_id = 7;
99	host->base = base;
100	host->irq = platform_get_irq(dev, 0);
101	if(request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "snirm710", host)) {
102		printk(KERN_ERR "snirm710: request_irq failed!\n");
103		goto out_put_host;
104	}
105
106	dev_set_drvdata(&dev->dev, host);
107	scsi_scan_host(host);
108
109	return 0;
110
111 out_put_host:
112	scsi_host_put(host);
113 out_kfree:
114	iounmap(hostdata->base);
115	kfree(hostdata);
116	return -ENODEV;
117}
118
119static int __exit snirm710_driver_remove(struct platform_device *dev)
120{
121	struct Scsi_Host *host = dev_get_drvdata(&dev->dev);
122	struct NCR_700_Host_Parameters *hostdata =
123		(struct NCR_700_Host_Parameters *)host->hostdata[0];
124
125	scsi_remove_host(host);
126	NCR_700_release(host);
127	free_irq(host->irq, host);
128	iounmap(hostdata->base);
129	kfree(hostdata);
130
131	return 0;
132}
133
134static struct platform_driver snirm710_driver = {
135	.probe	= snirm710_probe,
136	.remove	= __devexit_p(snirm710_driver_remove),
137	.driver	= {
138		.name	= "snirm_53c710",
139	},
140};
141
142static int __init snirm710_init(void)
143{
144	int err;
145
146	if ((err = platform_driver_register(&snirm710_driver))) {
147		printk(KERN_ERR "Driver registration failed\n");
148		return err;
149	}
150	return 0;
151}
152
153static void __exit snirm710_exit(void)
154{
155	platform_driver_unregister(&snirm710_driver);
156}
157
158module_init(snirm710_init);
159module_exit(snirm710_exit);
160