2 * Oak Generic NCR5380 driver
4 * Copyright 1995-2002, Russell King
7 #include <linux/module.h>
8 #include <linux/signal.h>
9 #include <linux/ioport.h>
10 #include <linux/delay.h>
11 #include <linux/blkdev.h>
12 #include <linux/init.h>
14 #include <asm/ecard.h>
18 #include <scsi/scsi_host.h>
21 /*#define PSEUDO_DMA*/
23 #define OAKSCSI_PUBLIC_RELEASE 1
26 #define priv(host) ((struct NCR5380_hostdata *)(host)->hostdata)
27 #define NCR5380_local_declare() void __iomem *_base
28 #define NCR5380_setup(host) _base = priv(host)->base
30 #define NCR5380_read(reg) readb(_base + ((reg) << 2))
31 #define NCR5380_write(reg, value) writeb(value, _base + ((reg) << 2))
32 #define NCR5380_intr oakscsi_intr
33 #define NCR5380_queue_command oakscsi_queue_command
34 #define NCR5380_show_info oakscsi_show_info
35 #define NCR5380_write_info oakscsi_write_info
37 #define NCR5380_implementation_fields \
40 #include "../NCR5380.h"
42 #undef START_DMA_INITIATOR_RECEIVE_REG
43 #define START_DMA_INITIATOR_RECEIVE_REG (128 + 7)
45 const char * oakscsi_info (struct Scsi_Host *spnt)
50 #define STAT ((128 + 16) << 2)
51 #define DATA ((128 + 8) << 2)
53 static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *addr,
56 void __iomem *base = priv(instance)->base;
58 printk("writing %p len %d\n",addr, len);
64 while (((status = readw(base + STAT)) & 0x100)==0);
68 static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *addr,
71 void __iomem *base = priv(instance)->base;
72 printk("reading %p len %d\n", addr, len);
75 unsigned int status, timeout;
80 while (((status = readw(base + STAT)) & 0x100)==0)
83 if(status & 0x200 || !timeout)
85 printk("status = %08X\n", status);
92 readsw(base + DATA, addr, 128);
98 b = (unsigned long) readw(base + DATA);
112 #include "../NCR5380.c"
114 static struct scsi_host_template oakscsi_template = {
115 .module = THIS_MODULE,
116 .show_info = oakscsi_show_info,
117 .write_info = oakscsi_write_info,
118 .name = "Oak 16-bit SCSI",
119 .info = oakscsi_info,
120 .queuecommand = oakscsi_queue_command,
121 .eh_abort_handler = NCR5380_abort,
122 .eh_bus_reset_handler = NCR5380_bus_reset,
125 .sg_tablesize = SG_ALL,
127 .use_clustering = DISABLE_CLUSTERING,
128 .proc_name = "oakscsi",
131 static int oakscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
133 struct Scsi_Host *host;
136 ret = ecard_request_resources(ec);
140 host = scsi_host_alloc(&oakscsi_template, sizeof(struct NCR5380_hostdata));
146 priv(host)->base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
147 ecard_resource_len(ec, ECARD_RES_MEMC));
148 if (!priv(host)->base) {
153 host->irq = IRQ_NONE;
154 host->n_io_port = 255;
156 NCR5380_init(host, 0);
158 printk("scsi%d: at port 0x%08lx irqs disabled",
159 host->host_no, host->io_port);
160 printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d",
161 host->can_queue, host->cmd_per_lun, OAKSCSI_PUBLIC_RELEASE);
162 printk("\nscsi%d:", host->host_no);
163 NCR5380_print_options(host);
166 ret = scsi_add_host(host, &ec->dev);
170 scsi_scan_host(host);
174 iounmap(priv(host)->base);
178 ecard_release_resources(ec);
183 static void oakscsi_remove(struct expansion_card *ec)
185 struct Scsi_Host *host = ecard_get_drvdata(ec);
187 ecard_set_drvdata(ec, NULL);
188 scsi_remove_host(host);
191 iounmap(priv(host)->base);
193 ecard_release_resources(ec);
196 static const struct ecard_id oakscsi_cids[] = {
197 { MANU_OAK, PROD_OAK_SCSI },
201 static struct ecard_driver oakscsi_driver = {
202 .probe = oakscsi_probe,
203 .remove = oakscsi_remove,
204 .id_table = oakscsi_cids,
210 static int __init oakscsi_init(void)
212 return ecard_register_driver(&oakscsi_driver);
215 static void __exit oakscsi_exit(void)
217 ecard_remove_driver(&oakscsi_driver);
220 module_init(oakscsi_init);
221 module_exit(oakscsi_exit);
223 MODULE_AUTHOR("Russell King");
224 MODULE_DESCRIPTION("Oak SCSI driver");
225 MODULE_LICENSE("GPL");