[ARM] rpc: update Acorn SCSI drivers to modern ecard interfaces
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/scsi/arm/ecoscsi.c b/drivers/scsi/arm/ecoscsi.c
index 378e7af..5265a98 100644
--- a/drivers/scsi/arm/ecoscsi.c
+++ b/drivers/scsi/arm/ecoscsi.c
@@ -34,35 +34,25 @@
#include "../scsi.h"
#include <scsi/scsi_host.h>
-#define NCR5380_implementation_fields int port, ctrl
-#define NCR5380_local_declare() struct Scsi_Host *_instance
-#define NCR5380_setup(instance) _instance = instance
+#define priv(host) ((struct NCR5380_hostdata *)(host)->hostdata)
-#define NCR5380_read(reg) ecoscsi_read(_instance, reg)
-#define NCR5380_write(reg, value) ecoscsi_write(_instance, reg, value)
+#define NCR5380_local_declare() void __iomem *_base
+#define NCR5380_setup(host) _base = priv(host)->base
+
+#define NCR5380_read(reg) ({ writeb(reg | 8, _base); readb(_base + 4); })
+#define NCR5380_write(reg, value) ({ writeb(reg | 8, _base); writeb(value, _base + 4); })
#define NCR5380_intr ecoscsi_intr
#define NCR5380_queue_command ecoscsi_queue_command
#define NCR5380_proc_info ecoscsi_proc_info
+#define NCR5380_implementation_fields \
+ void __iomem *base
+
#include "../NCR5380.h"
#define ECOSCSI_PUBLIC_RELEASE 1
-static char ecoscsi_read(struct Scsi_Host *instance, int reg)
-{
- int iobase = instance->io_port;
- outb(reg | 8, iobase);
- return inb(iobase + 1);
-}
-
-static void ecoscsi_write(struct Scsi_Host *instance, int reg, int value)
-{
- int iobase = instance->io_port;
- outb(reg | 8, iobase);
- outb(value, iobase + 1);
-}
-
/*
* Function : ecoscsi_setup(char *str, int *ints)
*
@@ -82,73 +72,6 @@
return "";
}
-#if 0
-#define STAT(p) inw(p + 144)
-
-static inline int NCR5380_pwrite(struct Scsi_Host *host, unsigned char *addr,
- int len)
-{
- int iobase = host->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 *host, unsigned char *addr,
- int len)
-{
- int iobase = host->io_port;
- int iobase2= host->io_port + 0x100;
- unsigned char *start = addr;
- int s;
-printk("reading %p len %d\n",addr, len);
- outb(inb(iobase + 128), iobase + 135);
- while(len > 0)
- {
- int status,b,i, timeout;
- timeout = 0x07FFFFFF;
- while(((status = STAT(iobase)) & 0x100)==0)
- {
- timeout--;
- if(status & 0x200 || !timeout)
- {
- printk("status = %p\n",status);
- outb(0, iobase + 135);
- return 1;
- }
- }
- if(len >= 128)
- {
- for(i=0; i<64; i++)
- {
- b = inw(iobase + 136);
- *addr++ = b;
- *addr++ = b>>8;
- }
- len -= 128;
- }
- else
- {
- b = inw(iobase + 136);
- *addr ++ = b;
- len -= 1;
- if(len)
- *addr ++ = b>>8;
- len -= 1;
- }
- }
- outb(0, iobase + 135);
- printk("first bytes = %02X %02X %02X %20X %02X %02X %02X\n",*start, start[1], start[2], start[3], start[4], start[5], start[6]);
- return 1;
-}
-#endif
-#undef STAT
-
#define BOARD_NORMAL 0
#define BOARD_NCR53C400 1
@@ -173,26 +96,37 @@
static int __init ecoscsi_init(void)
{
+ void __iomem *_base;
+ int ret;
+
+ if (!request_mem_region(0x33a0000, 4096, "ecoscsi")) {
+ ret = -EBUSY;
+ goto out;
+ }
+
+ _base = ioremap(0x33a0000, 4096);
+ if (!_base) {
+ ret = -ENOMEM;
+ goto out_release;
+ }
+
+ NCR5380_write(MODE_REG, 0x20); /* Is it really SCSI? */
+ if (NCR5380_read(MODE_REG) != 0x20) /* Write to a reg. */
+ goto out_unmap;
+
+ NCR5380_write(MODE_REG, 0x00); /* it back. */
+ if (NCR5380_read(MODE_REG) != 0x00)
+ goto out_unmap;
host = scsi_host_alloc(tpnt, sizeof(struct NCR5380_hostdata));
- if (!host)
- return 0;
+ if (!host) {
+ ret = -ENOMEM;
+ goto out_unmap;
+ }
- host->io_port = 0x80ce8000;
- host->n_io_port = 144;
+ priv(host)->base = _base;
host->irq = IRQ_NONE;
- if (!(request_region(host->io_port, host->n_io_port, "ecoscsi")) )
- goto unregister_scsi;
-
- ecoscsi_write(host, MODE_REG, 0x20); /* Is it really SCSI? */
- if (ecoscsi_read(host, MODE_REG) != 0x20) /* Write to a reg. */
- goto release_reg;
-
- ecoscsi_write(host, MODE_REG, 0x00 ); /* it back. */
- if (ecoscsi_read(host, MODE_REG) != 0x00)
- goto release_reg;
-
NCR5380_init(host, 0);
printk("scsi%d: at port 0x%08lx irqs disabled", host->host_no, host->io_port);
@@ -206,24 +140,20 @@
scsi_scan_host(host);
return 0;
-release_reg:
- release_region(host->io_port, host->n_io_port);
-unregister_scsi:
- scsi_host_put(host);
- return -ENODEV;
+ out_unmap:
+ iounmap(_base);
+ out_release:
+ release_mem_region(0x33a0000, 4096);
+ out:
+ return ret;
}
static void __exit ecoscsi_exit(void)
{
scsi_remove_host(host);
-
- if (shpnt->irq != IRQ_NONE)
- free_irq(shpnt->irq, NULL);
NCR5380_exit(host);
- if (shpnt->io_port)
- release_region(shpnt->io_port, shpnt->n_io_port);
-
scsi_host_put(host);
+ release_mem_region(0x33a0000, 4096);
return 0;
}