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[ARM] rpc: update Acorn SCSI drivers to modern ecard interfaces
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Signed-off-by: Russell King <[email protected]>
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Russell King authored and Russell King committed Jul 20, 2007
1 parent 13d5fad commit 8b801ea
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Showing 3 changed files with 185 additions and 248 deletions.
207 changes: 100 additions & 107 deletions drivers/scsi/arm/cumana_1.c
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Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,7 @@

#define CUMANASCSI_PUBLIC_RELEASE 1

#define NCR5380_implementation_fields int port, ctrl
#define priv(host) ((struct NCR5380_hostdata *)(host)->hostdata)
#define NCR5380_local_declare() struct Scsi_Host *_instance
#define NCR5380_setup(instance) _instance = instance
#define NCR5380_read(reg) cumanascsi_read(_instance, reg)
Expand All @@ -33,6 +33,11 @@
#define NCR5380_queue_command cumanascsi_queue_command
#define NCR5380_proc_info cumanascsi_proc_info

#define NCR5380_implementation_fields \
unsigned ctrl; \
void __iomem *base; \
void __iomem *dma

#define BOARD_NORMAL 0
#define BOARD_NCR53C400 1

Expand All @@ -47,192 +52,162 @@ const char *cumanascsi_info(struct Scsi_Host *spnt)
return "";
}

#ifdef NOT_EFFICIENT
#define CTRL(p,v) outb(*ctrl = (v), (p) - 577)
#define STAT(p) inb((p)+1)
#define IN(p) inb((p))
#define OUT(v,p) outb((v), (p))
#else
#define CTRL(p,v) (p[-2308] = (*ctrl = (v)))
#define STAT(p) (p[4])
#define IN(p) (*(p))
#define IN2(p) ((unsigned short)(*(volatile unsigned long *)(p)))
#define OUT(v,p) (*(p) = (v))
#define OUT2(v,p) (*((volatile unsigned long *)(p)) = (v))
#endif
#define L(v) (((v)<<16)|((v) & 0x0000ffff))
#define H(v) (((v)>>16)|((v) & 0xffff0000))
#define CTRL 0x16fc
#define STAT 0x2004
#define L(v) (((v)<<16)|((v) & 0x0000ffff))
#define H(v) (((v)>>16)|((v) & 0xffff0000))

static inline int
NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *addr, int len)
NCR5380_pwrite(struct Scsi_Host *host, unsigned char *addr, int len)
{
int *ctrl = &((struct NCR5380_hostdata *)instance->hostdata)->ctrl;
int oldctrl = *ctrl;
unsigned long *laddr;
#ifdef NOT_EFFICIENT
int iobase = instance->io_port;
int dma_io = iobase & ~(0x3C0000>>2);
#else
volatile unsigned char *iobase = (unsigned char *)ioaddr(instance->io_port);
volatile unsigned char *dma_io = (unsigned char *)((int)iobase & ~0x3C0000);
#endif
void __iomem *dma = priv(host)->dma + 0x2000;

if(!len) return 0;

CTRL(iobase, 0x02);
writeb(0x02, priv(host)->base + CTRL);
laddr = (unsigned long *)addr;
while(len >= 32)
{
int status;
unsigned int status;
unsigned long v;
status = STAT(iobase);
status = readb(priv(host)->base + STAT);
if(status & 0x80)
goto end;
if(!(status & 0x40))
continue;
v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io);
v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io);
v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io);
v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io);
v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io);
v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io);
v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io);
v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io);
v=*laddr++; writew(L(v), dma); writew(H(v), dma);
v=*laddr++; writew(L(v), dma); writew(H(v), dma);
v=*laddr++; writew(L(v), dma); writew(H(v), dma);
v=*laddr++; writew(L(v), dma); writew(H(v), dma);
v=*laddr++; writew(L(v), dma); writew(H(v), dma);
v=*laddr++; writew(L(v), dma); writew(H(v), dma);
v=*laddr++; writew(L(v), dma); writew(H(v), dma);
v=*laddr++; writew(L(v), dma); writew(H(v), dma);
len -= 32;
if(len == 0)
break;
}

addr = (unsigned char *)laddr;
CTRL(iobase, 0x12);
writeb(0x12, priv(host)->base + CTRL);

while(len > 0)
{
int status;
status = STAT(iobase);
unsigned int status;
status = readb(priv(host)->base + STAT);
if(status & 0x80)
goto end;
if(status & 0x40)
{
OUT(*addr++, dma_io);
writeb(*addr++, dma);
if(--len == 0)
break;
}

status = STAT(iobase);
status = readb(priv(host)->base + STAT);
if(status & 0x80)
goto end;
if(status & 0x40)
{
OUT(*addr++, dma_io);
writeb(*addr++, dma);
if(--len == 0)
break;
}
}
end:
CTRL(iobase, oldctrl|0x40);
writeb(priv(host)->ctrl | 0x40, priv(host)->base + CTRL);
return len;
}

static inline int
NCR5380_pread(struct Scsi_Host *instance, unsigned char *addr, int len)
NCR5380_pread(struct Scsi_Host *host, unsigned char *addr, int len)
{
int *ctrl = &((struct NCR5380_hostdata *)instance->hostdata)->ctrl;
int oldctrl = *ctrl;
unsigned long *laddr;
#ifdef NOT_EFFICIENT
int iobase = instance->io_port;
int dma_io = iobase & ~(0x3C0000>>2);
#else
volatile unsigned char *iobase = (unsigned char *)ioaddr(instance->io_port);
volatile unsigned char *dma_io = (unsigned char *)((int)iobase & ~0x3C0000);
#endif
void __iomem *dma = priv(host)->dma + 0x2000;

if(!len) return 0;

CTRL(iobase, 0x00);
writeb(0x00, priv(host)->base + CTRL);
laddr = (unsigned long *)addr;
while(len >= 32)
{
int status;
status = STAT(iobase);
unsigned int status;
status = readb(priv(host)->base + STAT);
if(status & 0x80)
goto end;
if(!(status & 0x40))
continue;
*laddr++ = IN2(dma_io)|(IN2(dma_io)<<16);
*laddr++ = IN2(dma_io)|(IN2(dma_io)<<16);
*laddr++ = IN2(dma_io)|(IN2(dma_io)<<16);
*laddr++ = IN2(dma_io)|(IN2(dma_io)<<16);
*laddr++ = IN2(dma_io)|(IN2(dma_io)<<16);
*laddr++ = IN2(dma_io)|(IN2(dma_io)<<16);
*laddr++ = IN2(dma_io)|(IN2(dma_io)<<16);
*laddr++ = IN2(dma_io)|(IN2(dma_io)<<16);
*laddr++ = readw(dma) | (readw(dma) << 16);
*laddr++ = readw(dma) | (readw(dma) << 16);
*laddr++ = readw(dma) | (readw(dma) << 16);
*laddr++ = readw(dma) | (readw(dma) << 16);
*laddr++ = readw(dma) | (readw(dma) << 16);
*laddr++ = readw(dma) | (readw(dma) << 16);
*laddr++ = readw(dma) | (readw(dma) << 16);
*laddr++ = readw(dma) | (readw(dma) << 16);
len -= 32;
if(len == 0)
break;
}

addr = (unsigned char *)laddr;
CTRL(iobase, 0x10);
writeb(0x10, priv(host)->base + CTRL);

while(len > 0)
{
int status;
status = STAT(iobase);
unsigned int status;
status = readb(priv(host)->base + STAT);
if(status & 0x80)
goto end;
if(status & 0x40)
{
*addr++ = IN(dma_io);
*addr++ = readb(dma);
if(--len == 0)
break;
}

status = STAT(iobase);
status = readb(priv(host)->base + STAT);
if(status & 0x80)
goto end;
if(status & 0x40)
{
*addr++ = IN(dma_io);
*addr++ = readb(dma);
if(--len == 0)
break;
}
}
end:
CTRL(iobase, oldctrl|0x40);
writeb(priv(host)->ctrl | 0x40, priv(host)->base + CTRL);
return len;
}

#undef STAT
#undef CTRL
#undef IN
#undef OUT
static unsigned char cumanascsi_read(struct Scsi_Host *host, unsigned int reg)
{
void __iomem *base = priv(host)->base;
unsigned char val;

#define CTRL(p,v) outb(*ctrl = (v), (p) - 577)
writeb(0, base + CTRL);

static char cumanascsi_read(struct Scsi_Host *instance, int reg)
{
unsigned int iobase = instance->io_port;
int i;
int *ctrl = &((struct NCR5380_hostdata *)instance->hostdata)->ctrl;
val = readb(base + 0x2100 + (reg << 2));

CTRL(iobase, 0);
i = inb(iobase + 64 + reg);
CTRL(iobase, 0x40);
priv(host)->ctrl = 0x40;
writeb(0x40, base + CTRL);

return i;
return val;
}

static void cumanascsi_write(struct Scsi_Host *instance, int reg, int value)
static void cumanascsi_write(struct Scsi_Host *host, unsigned int reg, unsigned int value)
{
int iobase = instance->io_port;
int *ctrl = &((struct NCR5380_hostdata *)instance->hostdata)->ctrl;
void __iomem *base = priv(host)->base;

CTRL(iobase, 0);
outb(value, iobase + 64 + reg);
CTRL(iobase, 0x40);
}
writeb(0, base + CTRL);

#undef CTRL
writeb(value, base + 0x2100 + (reg << 2));

priv(host)->ctrl = 0x40;
writeb(0x40, base + CTRL);
}

#include "../NCR5380.c"

Expand All @@ -256,32 +231,46 @@ static int __devinit
cumanascsi1_probe(struct expansion_card *ec, const struct ecard_id *id)
{
struct Scsi_Host *host;
int ret = -ENOMEM;
int ret;

host = scsi_host_alloc(&cumanascsi_template, sizeof(struct NCR5380_hostdata));
if (!host)
ret = ecard_request_resources(ec);
if (ret)
goto out;

host->io_port = ecard_address(ec, ECARD_IOC, ECARD_SLOW) + 0x800;
host = scsi_host_alloc(&cumanascsi_template, sizeof(struct NCR5380_hostdata));
if (!host) {
ret = -ENOMEM;
goto out_release;
}

priv(host)->base = ioremap(ecard_resource_start(ec, ECARD_RES_IOCSLOW),
ecard_resource_len(ec, ECARD_RES_IOCSLOW));
priv(host)->dma = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
ecard_resource_len(ec, ECARD_RES_MEMC));
if (!priv(host)->base || !priv(host)->dma) {
ret = -ENOMEM;
goto out_unmap;
}

host->irq = ec->irq;

NCR5380_init(host, 0);

priv(host)->ctrl = 0;
writeb(0, priv(host)->base + CTRL);

host->n_io_port = 255;
if (!(request_region(host->io_port, host->n_io_port, "CumanaSCSI-1"))) {
ret = -EBUSY;
goto out_free;
goto out_unmap;
}

((struct NCR5380_hostdata *)host->hostdata)->ctrl = 0;
outb(0x00, host->io_port - 577);

ret = request_irq(host->irq, cumanascsi_intr, IRQF_DISABLED,
"CumanaSCSI-1", host);
if (ret) {
printk("scsi%d: IRQ%d not free: %d\n",
host->host_no, host->irq, ret);
goto out_release;
goto out_unmap;
}

printk("scsi%d: at port 0x%08lx irq %d",
Expand All @@ -301,10 +290,12 @@ cumanascsi1_probe(struct expansion_card *ec, const struct ecard_id *id)

out_free_irq:
free_irq(host->irq, host);
out_release:
release_region(host->io_port, host->n_io_port);
out_free:
out_unmap:
iounmap(priv(host)->base);
iounmap(priv(host)->dma);
scsi_host_put(host);
out_release:
ecard_release_resources(ec);
out:
return ret;
}
Expand All @@ -318,8 +309,10 @@ static void __devexit cumanascsi1_remove(struct expansion_card *ec)
scsi_remove_host(host);
free_irq(host->irq, host);
NCR5380_exit(host);
release_region(host->io_port, host->n_io_port);
iounmap(priv(host)->base);
iounmap(priv(host)->dma);
scsi_host_put(host);
ecard_release_resources(ec);
}

static const struct ecard_id cumanascsi1_cids[] = {
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