2 * Oak Generic NCR5380 driver
4 * Copyright 1995-2002, Russell King
7 #include <linux/module.h>
8 #include <linux/signal.h>
9 #include <linux/sched.h>
10 #include <linux/ioport.h>
11 #include <linux/delay.h>
12 #include <linux/blkdev.h>
13 #include <linux/init.h>
15 #include <asm/ecard.h>
17 #include <asm/system.h>
20 #include <scsi/scsi_host.h>
23 /*#define PSEUDO_DMA*/
25 #define OAKSCSI_PUBLIC_RELEASE 1
27 #define NCR5380_read(reg) oakscsi_read(_instance, reg)
28 #define NCR5380_write(reg, value) oakscsi_write(_instance, reg, value)
29 #define NCR5380_intr oakscsi_intr
30 #define NCR5380_queue_command oakscsi_queue_command
31 #define NCR5380_proc_info oakscsi_proc_info
33 #define NCR5380_implementation_fields int port, ctrl
34 #define NCR5380_local_declare() struct Scsi_Host *_instance
35 #define NCR5380_setup(instance) _instance = instance
37 #define BOARD_NORMAL 0
38 #define BOARD_NCR53C400 1
40 #include "../NCR5380.h"
42 #undef START_DMA_INITIATOR_RECEIVE_REG
43 #define START_DMA_INITIATOR_RECEIVE_REG (7 + 128)
45 const char * oakscsi_info (struct Scsi_Host *spnt)
50 #define STAT(p) inw(p + 144)
51 extern void inswb(int from, void *to, int len);
53 static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *addr,
56 int iobase = instance->io_port;
57 printk("writing %p len %d\n",addr, len);
63 while(((status = STAT(iobase)) & 0x100)==0);
67 static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *addr,
70 int iobase = instance->io_port;
71 printk("reading %p len %d\n", addr, len);
79 while(((status = STAT(iobase)) & 0x100)==0)
82 if(status & 0x200 || !timeout)
84 printk("status = %08X\n",status);
90 inswb(iobase + 136, addr, 128);
96 b = (unsigned long) inw(iobase + 136);
107 #define oakscsi_read(instance,reg) (inb((instance)->io_port + (reg)))
108 #define oakscsi_write(instance,reg,val) (outb((val), (instance)->io_port + (reg)))
112 #include "../NCR5380.c"
114 static Scsi_Host_Template oakscsi_template = {
115 .module = THIS_MODULE,
116 .proc_info = oakscsi_proc_info,
117 .name = "Oak 16-bit SCSI",
118 .info = oakscsi_info,
119 .queuecommand = oakscsi_queue_command,
120 .eh_abort_handler = NCR5380_abort,
121 .eh_device_reset_handler= NCR5380_device_reset,
122 .eh_bus_reset_handler = NCR5380_bus_reset,
123 .eh_host_reset_handler = NCR5380_host_reset,
126 .sg_tablesize = SG_ALL,
128 .use_clustering = DISABLE_CLUSTERING,
129 .proc_name = "oakscsi",
133 oakscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
135 struct Scsi_Host *host;
138 host = scsi_host_alloc(&oakscsi_template, sizeof(struct NCR5380_hostdata));
142 host->io_port = ecard_address(ec, ECARD_MEMC, 0);
143 host->irq = IRQ_NONE;
144 host->n_io_port = 255;
147 if (!request_region (host->io_port, host->n_io_port, "Oak SCSI"))
150 NCR5380_init(host, 0);
152 printk("scsi%d: at port 0x%08lx irqs disabled",
153 host->host_no, host->io_port);
154 printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d",
155 host->can_queue, host->cmd_per_lun, OAKSCSI_PUBLIC_RELEASE);
156 printk("\nscsi%d:", host->host_no);
157 NCR5380_print_options(host);
160 ret = scsi_add_host(host, &ec->dev);
164 scsi_scan_host(host);
168 release_region(host->io_port, host->n_io_port);
175 static void __devexit oakscsi_remove(struct expansion_card *ec)
177 struct Scsi_Host *host = ecard_get_drvdata(ec);
179 ecard_set_drvdata(ec, NULL);
180 scsi_remove_host(host);
183 release_region(host->io_port, host->n_io_port);
187 static const struct ecard_id oakscsi_cids[] = {
188 { MANU_OAK, PROD_OAK_SCSI },
192 static struct ecard_driver oakscsi_driver = {
193 .probe = oakscsi_probe,
194 .remove = __devexit_p(oakscsi_remove),
195 .id_table = oakscsi_cids,
201 static int __init oakscsi_init(void)
203 return ecard_register_driver(&oakscsi_driver);
206 static void __exit oakscsi_exit(void)
208 ecard_remove_driver(&oakscsi_driver);
211 module_init(oakscsi_init);
212 module_exit(oakscsi_exit);
214 MODULE_AUTHOR("Russell King");
215 MODULE_DESCRIPTION("Oak SCSI driver");
216 MODULE_LICENSE("GPL");