1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21#include <linux/kernel.h>
22#include <linux/module.h>
23#include <linux/init.h>
24#include <linux/types.h>
25#include <linux/stat.h>
26#include <linux/mm.h>
27#include <linux/blkdev.h>
28#include <linux/ioport.h>
29#include <linux/dma-mapping.h>
30#include <linux/slab.h>
31
32#include <asm/page.h>
33#include <asm/irq.h>
34#include <asm/hardware.h>
35#include <asm/parisc-device.h>
36#include <asm/delay.h>
37
38#include <scsi/scsi_host.h>
39#include <scsi/scsi_device.h>
40#include <scsi/scsi_transport.h>
41#include <scsi/scsi_transport_spi.h>
42
43#include "53c700.h"
44
45MODULE_AUTHOR("James Bottomley");
46MODULE_DESCRIPTION("lasi700 SCSI Driver");
47MODULE_LICENSE("GPL");
48
49#define LASI_700_SVERSION 0x00071
50#define LASI_710_SVERSION 0x00082
51
52#define LASI700_ID_TABLE { \
53 .hw_type = HPHW_FIO, \
54 .sversion = LASI_700_SVERSION, \
55 .hversion = HVERSION_ANY_ID, \
56 .hversion_rev = HVERSION_REV_ANY_ID, \
57}
58
59#define LASI710_ID_TABLE { \
60 .hw_type = HPHW_FIO, \
61 .sversion = LASI_710_SVERSION, \
62 .hversion = HVERSION_ANY_ID, \
63 .hversion_rev = HVERSION_REV_ANY_ID, \
64}
65
66#define LASI700_CLOCK 25
67#define LASI710_CLOCK 40
68#define LASI_SCSI_CORE_OFFSET 0x100
69
70static const struct parisc_device_id lasi700_ids[] __initconst = {
71 LASI700_ID_TABLE,
72 LASI710_ID_TABLE,
73 { 0 }
74};
75
76static struct scsi_host_template lasi700_template = {
77 .name = "LASI SCSI 53c700",
78 .proc_name = "lasi700",
79 .this_id = 7,
80 .module = THIS_MODULE,
81};
82MODULE_DEVICE_TABLE(parisc, lasi700_ids);
83
84static int __init
85lasi700_probe(struct parisc_device *dev)
86{
87 unsigned long base = dev->hpa.start + LASI_SCSI_CORE_OFFSET;
88 struct NCR_700_Host_Parameters *hostdata;
89 struct Scsi_Host *host;
90
91 hostdata = kzalloc(sizeof(*hostdata), GFP_KERNEL);
92 if (!hostdata) {
93 dev_printk(KERN_ERR, &dev->dev, "Failed to allocate host data\n");
94 return -ENOMEM;
95 }
96
97 hostdata->dev = &dev->dev;
98 dma_set_mask(&dev->dev, DMA_BIT_MASK(32));
99 hostdata->base = ioremap(base, 0x100);
100 hostdata->differential = 0;
101
102 if (dev->id.sversion == LASI_700_SVERSION) {
103 hostdata->clock = LASI700_CLOCK;
104 hostdata->force_le_on_be = 1;
105 } else {
106 hostdata->clock = LASI710_CLOCK;
107 hostdata->force_le_on_be = 0;
108 hostdata->chip710 = 1;
109 hostdata->dmode_extra = DMODE_FC2;
110 hostdata->burst_length = 8;
111 }
112
113 host = NCR_700_detect(&lasi700_template, hostdata, &dev->dev);
114 if (!host)
115 goto out_kfree;
116 host->this_id = 7;
117 host->base = base;
118 host->irq = dev->irq;
119 if(request_irq(dev->irq, NCR_700_intr, IRQF_SHARED, "lasi700", host)) {
120 printk(KERN_ERR "lasi700: request_irq failed!\n");
121 goto out_put_host;
122 }
123
124 dev_set_drvdata(&dev->dev, host);
125 scsi_scan_host(host);
126
127 return 0;
128
129 out_put_host:
130 scsi_host_put(host);
131 out_kfree:
132 iounmap(hostdata->base);
133 kfree(hostdata);
134 return -ENODEV;
135}
136
137static void __exit
138lasi700_driver_remove(struct parisc_device *dev)
139{
140 struct Scsi_Host *host = dev_get_drvdata(&dev->dev);
141 struct NCR_700_Host_Parameters *hostdata =
142 (struct NCR_700_Host_Parameters *)host->hostdata[0];
143
144 scsi_remove_host(host);
145 NCR_700_release(host);
146 free_irq(host->irq, host);
147 iounmap(hostdata->base);
148 kfree(hostdata);
149}
150
151static struct parisc_driver lasi700_driver __refdata = {
152 .name = "lasi_scsi",
153 .id_table = lasi700_ids,
154 .probe = lasi700_probe,
155 .remove = __exit_p(lasi700_driver_remove),
156};
157
158static int __init
159lasi700_init(void)
160{
161 return register_parisc_driver(&lasi700_driver);
162}
163
164static void __exit
165lasi700_exit(void)
166{
167 unregister_parisc_driver(&lasi700_driver);
168}
169
170module_init(lasi700_init);
171module_exit(lasi700_exit);
172
