linux/drivers/scsi/mvme147.c
Olaf Hering 733482e445 [PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reason
This patch removes almost all inclusions of linux/version.h.  The 3
#defines are unused in most of the touched files.

A few drivers use the simple KERNEL_VERSION(a,b,c) macro, which is
unfortunatly in linux/version.h.

There are also lots of #ifdef for long obsolete kernels, this was not
touched.  In a few places, the linux/version.h include was move to where
the LINUX_VERSION_CODE was used.

quilt vi `find * -type f -name "*.[ch]"|xargs grep -El '(UTS_RELEASE|LINUX_VERSION_CODE|KERNEL_VERSION|linux/version.h)'|grep -Ev '(/(boot|coda|drm)/|~$)'`

search pattern:
/UTS_RELEASE\|LINUX_VERSION_CODE\|KERNEL_VERSION\|linux\/\(utsname\|version\).h

Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09 07:55:57 -08:00

162 lines
4.0 KiB
C

#include <linux/types.h>
#include <linux/mm.h>
#include <linux/blkdev.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/mvme147hw.h>
#include <asm/irq.h>
#include "scsi.h"
#include <scsi/scsi_host.h>
#include "wd33c93.h"
#include "mvme147.h"
#include<linux/stat.h>
#define HDATA(ptr) ((struct WD33C93_hostdata *)((ptr)->hostdata))
static struct Scsi_Host *mvme147_host = NULL;
static irqreturn_t mvme147_intr (int irq, void *dummy, struct pt_regs *fp)
{
if (irq == MVME147_IRQ_SCSI_PORT)
wd33c93_intr (mvme147_host);
else
m147_pcc->dma_intr = 0x89; /* Ack and enable ints */
return IRQ_HANDLED;
}
static int dma_setup (Scsi_Cmnd *cmd, int dir_in)
{
unsigned char flags = 0x01;
unsigned long addr = virt_to_bus(cmd->SCp.ptr);
/* setup dma direction */
if (!dir_in)
flags |= 0x04;
/* remember direction */
HDATA(mvme147_host)->dma_dir = dir_in;
if (dir_in)
/* invalidate any cache */
cache_clear (addr, cmd->SCp.this_residual);
else
/* push any dirty cache */
cache_push (addr, cmd->SCp.this_residual);
/* start DMA */
m147_pcc->dma_bcr = cmd->SCp.this_residual | (1<<24);
m147_pcc->dma_dadr = addr;
m147_pcc->dma_cntrl = flags;
/* return success */
return 0;
}
static void dma_stop (struct Scsi_Host *instance, Scsi_Cmnd *SCpnt,
int status)
{
m147_pcc->dma_cntrl = 0;
}
int mvme147_detect(Scsi_Host_Template *tpnt)
{
static unsigned char called = 0;
wd33c93_regs regs;
if (!MACH_IS_MVME147 || called)
return 0;
called++;
tpnt->proc_name = "MVME147";
tpnt->proc_info = &wd33c93_proc_info;
mvme147_host = scsi_register (tpnt, sizeof(struct WD33C93_hostdata));
if (!mvme147_host)
goto err_out;
mvme147_host->base = 0xfffe4000;
mvme147_host->irq = MVME147_IRQ_SCSI_PORT;
regs.SASR = (volatile unsigned char *)0xfffe4000;
regs.SCMD = (volatile unsigned char *)0xfffe4001;
wd33c93_init(mvme147_host, regs, dma_setup, dma_stop, WD33C93_FS_8_10);
if (request_irq(MVME147_IRQ_SCSI_PORT, mvme147_intr, 0, "MVME147 SCSI PORT", mvme147_intr))
goto err_unregister;
if (request_irq(MVME147_IRQ_SCSI_DMA, mvme147_intr, 0, "MVME147 SCSI DMA", mvme147_intr))
goto err_free_irq;
#if 0 /* Disabled; causes problems booting */
m147_pcc->scsi_interrupt = 0x10; /* Assert SCSI bus reset */
udelay(100);
m147_pcc->scsi_interrupt = 0x00; /* Negate SCSI bus reset */
udelay(2000);
m147_pcc->scsi_interrupt = 0x40; /* Clear bus reset interrupt */
#endif
m147_pcc->scsi_interrupt = 0x09; /* Enable interrupt */
m147_pcc->dma_cntrl = 0x00; /* ensure DMA is stopped */
m147_pcc->dma_intr = 0x89; /* Ack and enable ints */
return 1;
err_free_irq:
free_irq(MVME147_IRQ_SCSI_PORT, mvme147_intr);
err_unregister:
wd33c93_release();
scsi_unregister(mvme147_host);
err_out:
return 0;
}
static int mvme147_bus_reset(Scsi_Cmnd *cmd)
{
/* FIXME perform bus-specific reset */
/* FIXME 2: kill this function, and let midlayer fallback to
the same result, calling wd33c93_host_reset() */
spin_lock_irq(cmd->device->host->host_lock);
wd33c93_host_reset(cmd);
spin_unlock_irq(cmd->device->host->host_lock);
return SUCCESS;
}
#define HOSTS_C
#include "mvme147.h"
static Scsi_Host_Template driver_template = {
.proc_name = "MVME147",
.name = "MVME147 built-in SCSI",
.detect = mvme147_detect,
.release = mvme147_release,
.queuecommand = wd33c93_queuecommand,
.eh_abort_handler = wd33c93_abort,
.eh_bus_reset_handler = mvme147_bus_reset,
.eh_host_reset_handler = wd33c93_host_reset,
.can_queue = CAN_QUEUE,
.this_id = 7,
.sg_tablesize = SG_ALL,
.cmd_per_lun = CMD_PER_LUN,
.use_clustering = ENABLE_CLUSTERING
};
#include "scsi_module.c"
int mvme147_release(struct Scsi_Host *instance)
{
#ifdef MODULE
/* XXX Make sure DMA is stopped! */
wd33c93_release();
free_irq(MVME147_IRQ_SCSI_PORT, mvme147_intr);
free_irq(MVME147_IRQ_SCSI_DMA, mvme147_intr);
#endif
return 1;
}