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m68k: amiga - A2091/A590 SCSI zorro_driver conversion 

Acked-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Geert Uytterhoeven 2009-08-16 11:17:35 +02:00
parent 5d3f2c3860
commit c737e22cde
1 changed files with 104 additions and 86 deletions
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190
drivers/scsi/a2091.c
View File

@ -1,28 +1,20 @@
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/blkdev.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/zorro.h>
#include <asm/setup.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/amigaints.h>
#include <asm/amigahw.h>
#include <linux/zorro.h>
#include <asm/irq.h>
#include <linux/spinlock.h>
#include "scsi.h"
#include <scsi/scsi_host.h>
#include "wd33c93.h"
#include "a2091.h"
#include <linux/stat.h>
static int a2091_release(struct Scsi_Host *instance);
static irqreturn_t a2091_intr(int irq, void *data)
{
@ -147,85 +139,27 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
}
}
static int __init a2091_detect(struct scsi_host_template *tpnt)
{
static unsigned char called = 0;
struct Scsi_Host *instance;
unsigned long address;
struct zorro_dev *z = NULL;
wd33c93_regs wdregs;
struct a2091_scsiregs *regs;
struct WD33C93_hostdata *hdata;
int num_a2091 = 0;
if (!MACH_IS_AMIGA || called)
return 0;
called = 1;
tpnt->proc_name = "A2091";
tpnt->proc_info = &wd33c93_proc_info;
while ((z = zorro_find_device(ZORRO_WILDCARD, z))) {
if (z->id != ZORRO_PROD_CBM_A590_A2091_1 &&
z->id != ZORRO_PROD_CBM_A590_A2091_2)
continue;
address = z->resource.start;
if (!request_mem_region(address, 256, "wd33c93"))
continue;
instance = scsi_register(tpnt, sizeof(struct WD33C93_hostdata));
if (instance == NULL)
goto release;
instance->base = ZTWO_VADDR(address);
instance->irq = IRQ_AMIGA_PORTS;
instance->unique_id = z->slotaddr;
regs = (struct a2091_scsiregs *)(instance->base);
regs->DAWR = DAWR_A2091;
wdregs.SASR = &regs->SASR;
wdregs.SCMD = &regs->SCMD;
hdata = shost_priv(instance);
hdata->no_sync = 0xff;
hdata->fast = 0;
hdata->dma_mode = CTRL_DMA;
wd33c93_init(instance, wdregs, dma_setup, dma_stop,
WD33C93_FS_8_10);
if (request_irq(IRQ_AMIGA_PORTS, a2091_intr, IRQF_SHARED,
"A2091 SCSI", instance))
goto unregister;
regs->CNTR = CNTR_PDMD | CNTR_INTEN;
num_a2091++;
continue;
unregister:
scsi_unregister(instance);
release:
release_mem_region(address, 256);
}
return num_a2091;
}
static int a2091_bus_reset(struct scsi_cmnd *cmd)
{
struct Scsi_Host *instance = cmd->device->host;
/* FIXME perform bus-specific reset */
/* FIXME 2: kill this function, and let midlayer fall back
to the same action, calling wd33c93_host_reset() */
spin_lock_irq(cmd->device->host->host_lock);
spin_lock_irq(instance->host_lock);
wd33c93_host_reset(cmd);
spin_unlock_irq(cmd->device->host->host_lock);
spin_unlock_irq(instance->host_lock);
return SUCCESS;
}
#define HOSTS_C
static struct scsi_host_template driver_template = {
.proc_name = "A2901",
static struct scsi_host_template a2091_scsi_template = {
.module = THIS_MODULE,
.name = "Commodore A2091/A590 SCSI",
.detect = a2091_detect,
.release = a2091_release,
.proc_info = wd33c93_proc_info,
.proc_name = "A2901",
.queuecommand = wd33c93_queuecommand,
.eh_abort_handler = wd33c93_abort,
.eh_bus_reset_handler = a2091_bus_reset,
@ -237,19 +171,103 @@ static struct scsi_host_template driver_template = {
.use_clustering = DISABLE_CLUSTERING
};
#include "scsi_module.c"
static int a2091_release(struct Scsi_Host *instance)
static int __devinit a2091_probe(struct zorro_dev *z,
const struct zorro_device_id *ent)
{
#ifdef MODULE
struct Scsi_Host *instance;
int error;
struct a2091_scsiregs *regs;
wd33c93_regs wdregs;
struct WD33C93_hostdata *hdata;
if (!request_mem_region(z->resource.start, 256, "wd33c93"))
return -EBUSY;
instance = scsi_host_alloc(&a2091_scsi_template,
sizeof(struct WD33C93_hostdata));
if (!instance) {
error = -ENOMEM;
goto fail_alloc;
}
instance->base = ZTWO_VADDR(z->resource.start);
instance->irq = IRQ_AMIGA_PORTS;
instance->unique_id = z->slotaddr;
regs = (struct a2091_scsiregs *)(instance->base);
regs->DAWR = DAWR_A2091;
wdregs.SASR = &regs->SASR;
wdregs.SCMD = &regs->SCMD;
hdata = shost_priv(instance);
hdata->no_sync = 0xff;
hdata->fast = 0;
hdata->dma_mode = CTRL_DMA;
wd33c93_init(instance, wdregs, dma_setup, dma_stop, WD33C93_FS_8_10);
error = request_irq(IRQ_AMIGA_PORTS, a2091_intr, IRQF_SHARED,
"A2091 SCSI", instance);
if (error)
goto fail_irq;
regs->CNTR = CNTR_PDMD | CNTR_INTEN;
error = scsi_add_host(instance, NULL);
if (error)
goto fail_host;
zorro_set_drvdata(z, instance);
scsi_scan_host(instance);
return 0;
fail_host:
free_irq(IRQ_AMIGA_PORTS, instance);
fail_irq:
scsi_host_put(instance);
fail_alloc:
release_mem_region(z->resource.start, 256);
return error;
}
static void __devexit a2091_remove(struct zorro_dev *z)
{
struct Scsi_Host *instance = zorro_get_drvdata(z);
struct a2091_scsiregs *regs = (struct a2091_scsiregs *)(instance->base);
regs->CNTR = 0;
release_mem_region(ZTWO_PADDR(instance->base), 256);
scsi_remove_host(instance);
free_irq(IRQ_AMIGA_PORTS, instance);
#endif
return 1;
scsi_host_put(instance);
release_mem_region(z->resource.start, 256);
}
static struct zorro_device_id a2091_zorro_tbl[] __devinitdata = {
{ ZORRO_PROD_CBM_A590_A2091_1 },
{ ZORRO_PROD_CBM_A590_A2091_2 },
{ 0 }
};
MODULE_DEVICE_TABLE(zorro, a2091_zorro_tbl);
static struct zorro_driver a2091_driver = {
.name = "a2091",
.id_table = a2091_zorro_tbl,
.probe = a2091_probe,
.remove = __devexit_p(a2091_remove),
};
static int __init a2091_init(void)
{
return zorro_register_driver(&a2091_driver);
}
module_init(a2091_init);
static void __exit a2091_exit(void)
{
zorro_unregister_driver(&a2091_driver);
}
module_exit(a2091_exit);
MODULE_DESCRIPTION("Commodore A2091/A590 SCSI");
MODULE_LICENSE("GPL");