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