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/*
* Oak Generic NCR5380 driver
*
* Copyright 1995-2002, Russell King
*/
#include <linux/module.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/blkdev.h>
#include <linux/init.h>
#include <asm/ecard.h>
#include <asm/io.h>
#include <asm/system.h>
#include "../scsi.h"
#include <scsi/scsi_host.h>
#define AUTOSENSE
/*#define PSEUDO_DMA*/
#define OAKSCSI_PUBLIC_RELEASE 1
#define NCR5380_read(reg) oakscsi_read(_instance, reg)
#define NCR5380_write(reg, value) oakscsi_write(_instance, reg, value)
#define NCR5380_intr oakscsi_intr
#define NCR5380_queue_command oakscsi_queue_command
#define NCR5380_proc_info oakscsi_proc_info
#define NCR5380_implementation_fields int port, ctrl
#define NCR5380_local_declare() struct Scsi_Host *_instance
#define NCR5380_setup(instance) _instance = instance
#define BOARD_NORMAL 0
#define BOARD_NCR53C400 1
#include "../NCR5380.h"
#undef START_DMA_INITIATOR_RECEIVE_REG
#define START_DMA_INITIATOR_RECEIVE_REG (7 + 128)
const char * oakscsi_info (struct Scsi_Host *spnt)
{
return "";
}
#define STAT(p) inw(p + 144)
extern void inswb(int from, void *to, int len);
static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *addr,
int len)
{
int iobase = instance->io_port;
printk("writing %p len %d\n",addr, len);
if(!len) return -1;
while(1)
{
int status;
while(((status = STAT(iobase)) & 0x100)==0);
}
}
static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *addr,
int len)
{
int iobase = instance->io_port;
printk("reading %p len %d\n", addr, len);
while(len > 0)
{
int status, timeout;
unsigned long b;
timeout = 0x01FFFFFF;
while(((status = STAT(iobase)) & 0x100)==0)
{
timeout--;
if(status & 0x200 || !timeout)
{
printk("status = %08X\n",status);
return 1;
}
}
if(len >= 128)
{
inswb(iobase + 136, addr, 128);
addr += 128;
len -= 128;
}
else
{
b = (unsigned long) inw(iobase + 136);
*addr ++ = b;
len -= 1;
if(len)
*addr ++ = b>>8;
len -= 1;
}
}
return 0;
}
#define oakscsi_read(instance,reg) (inb((instance)->io_port + (reg)))
#define oakscsi_write(instance,reg,val) (outb((val), (instance)->io_port + (reg)))
#undef STAT
#include "../NCR5380.c"
static struct scsi_host_template oakscsi_template = {
.module = THIS_MODULE,
.proc_info = oakscsi_proc_info,
.name = "Oak 16-bit SCSI",
.info = oakscsi_info,
.queuecommand = oakscsi_queue_command,
.eh_abort_handler = NCR5380_abort,
.eh_bus_reset_handler = NCR5380_bus_reset,
.can_queue = 16,
.this_id = 7,
.sg_tablesize = SG_ALL,
.cmd_per_lun = 2,
.use_clustering = DISABLE_CLUSTERING,
.proc_name = "oakscsi",
};
static int __devinit
oakscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
{
struct Scsi_Host *host;
int ret = -ENOMEM;
host = scsi_host_alloc(&oakscsi_template, sizeof(struct NCR5380_hostdata));
if (!host)
goto out;
host->io_port = ecard_address(ec, ECARD_MEMC, 0);
host->irq = IRQ_NONE;
host->n_io_port = 255;
ret = -EBUSY;
if (!request_region (host->io_port, host->n_io_port, "Oak SCSI"))
goto unreg;
NCR5380_init(host, 0);
printk("scsi%d: at port 0x%08lx irqs disabled",
host->host_no, host->io_port);
printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d",
host->can_queue, host->cmd_per_lun, OAKSCSI_PUBLIC_RELEASE);
printk("\nscsi%d:", host->host_no);
NCR5380_print_options(host);
printk("\n");
ret = scsi_add_host(host, &ec->dev);
if (ret)
goto out_release;
scsi_scan_host(host);
goto out;
out_release:
release_region(host->io_port, host->n_io_port);
unreg:
scsi_host_put(host);
out:
return ret;
}
static void __devexit oakscsi_remove(struct expansion_card *ec)
{
struct Scsi_Host *host = ecard_get_drvdata(ec);
ecard_set_drvdata(ec, NULL);
scsi_remove_host(host);
NCR5380_exit(host);
release_region(host->io_port, host->n_io_port);
scsi_host_put(host);
}
static const struct ecard_id oakscsi_cids[] = {
{ MANU_OAK, PROD_OAK_SCSI },
{ 0xffff, 0xffff }
};
static struct ecard_driver oakscsi_driver = {
.probe = oakscsi_probe,
.remove = __devexit_p(oakscsi_remove),
.id_table = oakscsi_cids,
.drv = {
.name = "oakscsi",
},
};
static int __init oakscsi_init(void)
{
return ecard_register_driver(&oakscsi_driver);
}
static void __exit oakscsi_exit(void)
{
ecard_remove_driver(&oakscsi_driver);
}
module_init(oakscsi_init);
module_exit(oakscsi_exit);
MODULE_AUTHOR("Russell King");
MODULE_DESCRIPTION("Oak SCSI driver");
MODULE_LICENSE("GPL");
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