mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 02:39:48 +00:00
[ARM] rpc: acornscsi: update to new style ecard driver
Update acornscsi as per all the other ecard drivers to use MMIO accessors rather than the obsolete 'pc io' style inb/outb accessors. Use ecard_request_resources()/ecard_release_resources() for easier resource handling, rather than requesting 5 separate regions individually. Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
parent
a796ef7035
commit
e95a1b656a
2 changed files with 75 additions and 94 deletions
|
@ -136,9 +136,9 @@
|
|||
#include <linux/init.h>
|
||||
#include <linux/bitops.h>
|
||||
#include <linux/stringify.h>
|
||||
#include <linux/io.h>
|
||||
|
||||
#include <asm/system.h>
|
||||
#include <asm/io.h>
|
||||
#include <asm/ecard.h>
|
||||
|
||||
#include "../scsi.h"
|
||||
|
@ -198,35 +198,40 @@ static void acornscsi_abortcmd(AS_Host *host, unsigned char tag);
|
|||
* Miscellaneous
|
||||
*/
|
||||
|
||||
/* Offsets from MEMC base */
|
||||
#define SBIC_REGIDX 0x2000
|
||||
#define SBIC_REGVAL 0x2004
|
||||
#define DMAC_OFFSET 0x3000
|
||||
|
||||
/* Offsets from FAST IOC base */
|
||||
#define INT_REG 0x2000
|
||||
#define PAGE_REG 0x3000
|
||||
|
||||
static inline void sbic_arm_write(AS_Host *host, unsigned int reg, unsigned int value)
|
||||
{
|
||||
__raw_writeb(reg, host->scsi.io_port);
|
||||
__raw_writeb(value, host->scsi.io_port + 4);
|
||||
writeb(reg, host->base + SBIC_REGIDX);
|
||||
writeb(value, host->base + SBIC_REGVAL);
|
||||
}
|
||||
|
||||
#define sbic_arm_writenext(host,val) \
|
||||
__raw_writeb((val), (host)->scsi.io_port + 4)
|
||||
|
||||
static inline int sbic_arm_read(AS_Host *host, unsigned int reg)
|
||||
{
|
||||
if(reg == SBIC_ASR)
|
||||
return __raw_readl(host->scsi.io_port) & 255;
|
||||
__raw_writeb(reg, host->scsi.io_port);
|
||||
return __raw_readl(host->scsi.io_port + 4) & 255;
|
||||
return readl(host->base + SBIC_REGIDX) & 255;
|
||||
writeb(reg, host->base + SBIC_REGIDX);
|
||||
return readl(host->base + SBIC_REGVAL) & 255;
|
||||
}
|
||||
|
||||
#define sbic_arm_readnext(host) \
|
||||
__raw_readb((host)->scsi.io_port + 4)
|
||||
#define sbic_arm_writenext(host, val) writeb((val), (host)->base + SBIC_REGVAL)
|
||||
#define sbic_arm_readnext(host) readb((host)->base + SBIC_REGVAL)
|
||||
|
||||
#ifdef USE_DMAC
|
||||
#define dmac_read(host,reg) \
|
||||
inb((host)->dma.io_port + (reg))
|
||||
readb((host)->base + DMAC_OFFSET + ((reg) << 2))
|
||||
|
||||
#define dmac_write(host,reg,value) \
|
||||
({ outb((value), (host)->dma.io_port + (reg)); })
|
||||
({ writeb((value), (host)->base + DMAC_OFFSET + ((reg) << 2)); })
|
||||
|
||||
#define dmac_clearintr(host) \
|
||||
({ outb(0, (host)->dma.io_intr_clear); })
|
||||
#define dmac_clearintr(host) writeb(0, (host)->fast + INT_REG)
|
||||
|
||||
static inline unsigned int dmac_address(AS_Host *host)
|
||||
{
|
||||
|
@ -323,20 +328,20 @@ void acornscsi_resetcard(AS_Host *host)
|
|||
|
||||
/* assert reset line */
|
||||
host->card.page_reg = 0x80;
|
||||
outb(host->card.page_reg, host->card.io_page);
|
||||
writeb(host->card.page_reg, host->fast + PAGE_REG);
|
||||
|
||||
/* wait 3 cs. SCSI standard says 25ms. */
|
||||
acornscsi_csdelay(3);
|
||||
|
||||
host->card.page_reg = 0;
|
||||
outb(host->card.page_reg, host->card.io_page);
|
||||
writeb(host->card.page_reg, host->fast + PAGE_REG);
|
||||
|
||||
/*
|
||||
* Should get a reset from the card
|
||||
*/
|
||||
timeout = 1000;
|
||||
do {
|
||||
if (inb(host->card.io_intr) & 8)
|
||||
if (readb(host->fast + INT_REG) & 8)
|
||||
break;
|
||||
udelay(1);
|
||||
} while (--timeout);
|
||||
|
@ -357,7 +362,7 @@ void acornscsi_resetcard(AS_Host *host)
|
|||
*/
|
||||
timeout = 1000;
|
||||
do {
|
||||
if (inb(host->card.io_intr) & 8)
|
||||
if (readb(host->fast + INT_REG) & 8)
|
||||
break;
|
||||
udelay(1);
|
||||
} while (--timeout);
|
||||
|
@ -377,7 +382,7 @@ void acornscsi_resetcard(AS_Host *host)
|
|||
sbic_arm_write(host, SBIC_SOURCEID, SOURCEID_ER | SOURCEID_DSP);
|
||||
|
||||
host->card.page_reg = 0x40;
|
||||
outb(host->card.page_reg, host->card.io_page);
|
||||
writeb(host->card.page_reg, host->fast + PAGE_REG);
|
||||
|
||||
/* setup dmac - uPC71071 */
|
||||
dmac_write(host, DMAC_INIT, 0);
|
||||
|
@ -910,13 +915,13 @@ static
|
|||
void acornscsi_data_read(AS_Host *host, char *ptr,
|
||||
unsigned int start_addr, unsigned int length)
|
||||
{
|
||||
extern void __acornscsi_in(int port, char *buf, int len);
|
||||
extern void __acornscsi_in(void __iomem *, char *buf, int len);
|
||||
unsigned int page, offset, len = length;
|
||||
|
||||
page = (start_addr >> 12);
|
||||
offset = start_addr & ((1 << 12) - 1);
|
||||
|
||||
outb((page & 0x3f) | host->card.page_reg, host->card.io_page);
|
||||
writeb((page & 0x3f) | host->card.page_reg, host->fast + PAGE_REG);
|
||||
|
||||
while (len > 0) {
|
||||
unsigned int this_len;
|
||||
|
@ -926,7 +931,7 @@ void acornscsi_data_read(AS_Host *host, char *ptr,
|
|||
else
|
||||
this_len = len;
|
||||
|
||||
__acornscsi_in(host->card.io_ram + (offset << 1), ptr, this_len);
|
||||
__acornscsi_in(host->base + (offset << 1), ptr, this_len);
|
||||
|
||||
offset += this_len;
|
||||
ptr += this_len;
|
||||
|
@ -935,10 +940,10 @@ void acornscsi_data_read(AS_Host *host, char *ptr,
|
|||
if (offset == (1 << 12)) {
|
||||
offset = 0;
|
||||
page ++;
|
||||
outb((page & 0x3f) | host->card.page_reg, host->card.io_page);
|
||||
writeb((page & 0x3f) | host->card.page_reg, host->fast + PAGE_REG);
|
||||
}
|
||||
}
|
||||
outb(host->card.page_reg, host->card.io_page);
|
||||
writeb(host->card.page_reg, host->fast + PAGE_REG);
|
||||
}
|
||||
|
||||
/*
|
||||
|
@ -955,13 +960,13 @@ static
|
|||
void acornscsi_data_write(AS_Host *host, char *ptr,
|
||||
unsigned int start_addr, unsigned int length)
|
||||
{
|
||||
extern void __acornscsi_out(int port, char *buf, int len);
|
||||
extern void __acornscsi_out(void __iomem *, char *buf, int len);
|
||||
unsigned int page, offset, len = length;
|
||||
|
||||
page = (start_addr >> 12);
|
||||
offset = start_addr & ((1 << 12) - 1);
|
||||
|
||||
outb((page & 0x3f) | host->card.page_reg, host->card.io_page);
|
||||
writeb((page & 0x3f) | host->card.page_reg, host->fast + PAGE_REG);
|
||||
|
||||
while (len > 0) {
|
||||
unsigned int this_len;
|
||||
|
@ -971,7 +976,7 @@ void acornscsi_data_write(AS_Host *host, char *ptr,
|
|||
else
|
||||
this_len = len;
|
||||
|
||||
__acornscsi_out(host->card.io_ram + (offset << 1), ptr, this_len);
|
||||
__acornscsi_out(host->base + (offset << 1), ptr, this_len);
|
||||
|
||||
offset += this_len;
|
||||
ptr += this_len;
|
||||
|
@ -980,10 +985,10 @@ void acornscsi_data_write(AS_Host *host, char *ptr,
|
|||
if (offset == (1 << 12)) {
|
||||
offset = 0;
|
||||
page ++;
|
||||
outb((page & 0x3f) | host->card.page_reg, host->card.io_page);
|
||||
writeb((page & 0x3f) | host->card.page_reg, host->fast + PAGE_REG);
|
||||
}
|
||||
}
|
||||
outb(host->card.page_reg, host->card.io_page);
|
||||
writeb(host->card.page_reg, host->fast + PAGE_REG);
|
||||
}
|
||||
|
||||
/* =========================================================================================
|
||||
|
@ -2468,11 +2473,11 @@ acornscsi_intr(int irq, void *dev_id)
|
|||
do {
|
||||
ret = INTR_IDLE;
|
||||
|
||||
iostatus = inb(host->card.io_intr);
|
||||
iostatus = readb(host->fast + INT_REG);
|
||||
|
||||
if (iostatus & 2) {
|
||||
acornscsi_dma_intr(host);
|
||||
iostatus = inb(host->card.io_intr);
|
||||
iostatus = readb(host->fast + INT_REG);
|
||||
}
|
||||
|
||||
if (iostatus & 8)
|
||||
|
@ -2858,11 +2863,11 @@ int acornscsi_proc_info(struct Scsi_Host *instance, char *buffer, char **start,
|
|||
#endif
|
||||
"\n\n", VER_MAJOR, VER_MINOR, VER_PATCH);
|
||||
|
||||
p += sprintf(p, "SBIC: WD33C93A Address: %08X IRQ : %d\n",
|
||||
host->scsi.io_port, host->scsi.irq);
|
||||
p += sprintf(p, "SBIC: WD33C93A Address: %p IRQ : %d\n",
|
||||
host->base + SBIC_REGIDX, host->scsi.irq);
|
||||
#ifdef USE_DMAC
|
||||
p += sprintf(p, "DMAC: uPC71071 Address: %08X IRQ : %d\n\n",
|
||||
host->dma.io_port, host->scsi.irq);
|
||||
p += sprintf(p, "DMAC: uPC71071 Address: %p IRQ : %d\n\n",
|
||||
host->base + DMAC_OFFSET, host->scsi.irq);
|
||||
#endif
|
||||
|
||||
p += sprintf(p, "Statistics:\n"
|
||||
|
@ -2964,48 +2969,37 @@ acornscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
|
|||
{
|
||||
struct Scsi_Host *host;
|
||||
AS_Host *ashost;
|
||||
int ret = -ENOMEM;
|
||||
int ret;
|
||||
|
||||
ret = ecard_request_resources(ec);
|
||||
if (ret)
|
||||
goto out;
|
||||
|
||||
host = scsi_host_alloc(&acornscsi_template, sizeof(AS_Host));
|
||||
if (!host)
|
||||
goto out;
|
||||
if (!host) {
|
||||
ret = -ENOMEM;
|
||||
goto out_release;
|
||||
}
|
||||
|
||||
ashost = (AS_Host *)host->hostdata;
|
||||
|
||||
host->io_port = ecard_address(ec, ECARD_MEMC, 0);
|
||||
ashost->base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
|
||||
ashost->fast = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
|
||||
if (!ashost->base || !ashost->fast)
|
||||
goto out_put;
|
||||
|
||||
host->irq = ec->irq;
|
||||
ashost->host = host;
|
||||
ashost->scsi.irq = host->irq;
|
||||
|
||||
ashost->host = host;
|
||||
ashost->scsi.io_port = ioaddr(host->io_port + 0x800);
|
||||
ashost->scsi.irq = host->irq;
|
||||
ashost->card.io_intr = POD_SPACE(host->io_port) + 0x800;
|
||||
ashost->card.io_page = POD_SPACE(host->io_port) + 0xc00;
|
||||
ashost->card.io_ram = ioaddr(host->io_port);
|
||||
ashost->dma.io_port = host->io_port + 0xc00;
|
||||
ashost->dma.io_intr_clear = POD_SPACE(host->io_port) + 0x800;
|
||||
|
||||
ec->irqaddr = (char *)ioaddr(ashost->card.io_intr);
|
||||
ec->irqaddr = ashost->fast + INT_REG;
|
||||
ec->irqmask = 0x0a;
|
||||
|
||||
ret = -EBUSY;
|
||||
if (!request_region(host->io_port + 0x800, 2, "acornscsi(sbic)"))
|
||||
goto err_1;
|
||||
if (!request_region(ashost->card.io_intr, 1, "acornscsi(intr)"))
|
||||
goto err_2;
|
||||
if (!request_region(ashost->card.io_page, 1, "acornscsi(page)"))
|
||||
goto err_3;
|
||||
#ifdef USE_DMAC
|
||||
if (!request_region(ashost->dma.io_port, 256, "acornscsi(dmac)"))
|
||||
goto err_4;
|
||||
#endif
|
||||
if (!request_region(host->io_port, 2048, "acornscsi(ram)"))
|
||||
goto err_5;
|
||||
|
||||
ret = request_irq(host->irq, acornscsi_intr, IRQF_DISABLED, "acornscsi", ashost);
|
||||
if (ret) {
|
||||
printk(KERN_CRIT "scsi%d: IRQ%d not free: %d\n",
|
||||
host->host_no, ashost->scsi.irq, ret);
|
||||
goto err_6;
|
||||
goto out_put;
|
||||
}
|
||||
|
||||
memset(&ashost->stats, 0, sizeof (ashost->stats));
|
||||
|
@ -3017,27 +3011,22 @@ acornscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
|
|||
|
||||
ret = scsi_add_host(host, &ec->dev);
|
||||
if (ret)
|
||||
goto err_7;
|
||||
goto out_irq;
|
||||
|
||||
scsi_scan_host(host);
|
||||
goto out;
|
||||
|
||||
err_7:
|
||||
out_irq:
|
||||
free_irq(host->irq, ashost);
|
||||
err_6:
|
||||
release_region(host->io_port, 2048);
|
||||
err_5:
|
||||
#ifdef USE_DMAC
|
||||
release_region(ashost->dma.io_port, 256);
|
||||
#endif
|
||||
err_4:
|
||||
release_region(ashost->card.io_page, 1);
|
||||
err_3:
|
||||
release_region(ashost->card.io_intr, 1);
|
||||
err_2:
|
||||
release_region(host->io_port + 0x800, 2);
|
||||
err_1:
|
||||
msgqueue_free(&ashost->scsi.msgs);
|
||||
queue_free(&ashost->queues.disconnected);
|
||||
queue_free(&ashost->queues.issue);
|
||||
out_put:
|
||||
ecardm_iounmap(ec, ashost->fast);
|
||||
ecardm_iounmap(ec, ashost->base);
|
||||
scsi_host_put(host);
|
||||
out_release:
|
||||
ecard_release_resources(ec);
|
||||
out:
|
||||
return ret;
|
||||
}
|
||||
|
@ -3053,20 +3042,17 @@ static void __devexit acornscsi_remove(struct expansion_card *ec)
|
|||
/*
|
||||
* Put card into RESET state
|
||||
*/
|
||||
outb(0x80, ashost->card.io_page);
|
||||
writeb(0x80, ashost->fast + PAGE_REG);
|
||||
|
||||
free_irq(host->irq, ashost);
|
||||
|
||||
release_region(host->io_port + 0x800, 2);
|
||||
release_region(ashost->card.io_intr, 1);
|
||||
release_region(ashost->card.io_page, 1);
|
||||
release_region(ashost->dma.io_port, 256);
|
||||
release_region(host->io_port, 2048);
|
||||
|
||||
msgqueue_free(&ashost->scsi.msgs);
|
||||
queue_free(&ashost->queues.disconnected);
|
||||
queue_free(&ashost->queues.issue);
|
||||
ecardm_iounmap(ec, ashost->fast);
|
||||
ecardm_iounmap(ec, ashost->base);
|
||||
scsi_host_put(host);
|
||||
ecard_release_resources(ec);
|
||||
}
|
||||
|
||||
static const struct ecard_id acornscsi_cids[] = {
|
||||
|
|
|
@ -179,7 +179,6 @@
|
|||
|
||||
/* miscellaneous internal variables */
|
||||
|
||||
#define POD_SPACE(x) ((x) + 0xd0000)
|
||||
#define MASK_ON (MASKREG_M3|MASKREG_M2|MASKREG_M1|MASKREG_M0)
|
||||
#define MASK_OFF (MASKREG_M3|MASKREG_M2|MASKREG_M1)
|
||||
|
||||
|
@ -279,10 +278,11 @@ typedef struct acornscsi_hostdata {
|
|||
struct Scsi_Host *host; /* host */
|
||||
struct scsi_cmnd *SCpnt; /* currently processing command */
|
||||
struct scsi_cmnd *origSCpnt; /* original connecting command */
|
||||
void __iomem *base; /* memc base address */
|
||||
void __iomem *fast; /* fast ioc base address */
|
||||
|
||||
/* driver information */
|
||||
struct {
|
||||
unsigned int io_port; /* base address of WD33C93 */
|
||||
unsigned int irq; /* interrupt */
|
||||
phase_t phase; /* current phase */
|
||||
|
||||
|
@ -329,8 +329,6 @@ typedef struct acornscsi_hostdata {
|
|||
|
||||
/* DMA info */
|
||||
struct {
|
||||
unsigned int io_port; /* base address of DMA controller */
|
||||
unsigned int io_intr_clear; /* address of DMA interrupt clear */
|
||||
unsigned int free_addr; /* next free address */
|
||||
unsigned int start_addr; /* start address of current transfer */
|
||||
dmadir_t direction; /* dma direction */
|
||||
|
@ -345,9 +343,6 @@ typedef struct acornscsi_hostdata {
|
|||
|
||||
/* card info */
|
||||
struct {
|
||||
unsigned int io_intr; /* base address of interrupt id reg */
|
||||
unsigned int io_page; /* base address of page reg */
|
||||
unsigned int io_ram; /* base address of RAM access */
|
||||
unsigned char page_reg; /* current setting of page reg */
|
||||
} card;
|
||||
|
||||
|
|
Loading…
Reference in a new issue