mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
79 lines
1.8 KiB
C
79 lines
1.8 KiB
C
/*
|
|
* Detection routine for the NCR53c710 based MVME16x SCSI Controllers for Linux.
|
|
*
|
|
* Based on work by Alan Hourihane
|
|
*/
|
|
#include <linux/types.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/blkdev.h>
|
|
#include <linux/sched.h>
|
|
|
|
#include <asm/page.h>
|
|
#include <asm/pgtable.h>
|
|
#include <asm/mvme16xhw.h>
|
|
#include <asm/irq.h>
|
|
|
|
#include "scsi.h"
|
|
#include <scsi/scsi_host.h>
|
|
#include "53c7xx.h"
|
|
#include "mvme16x.h"
|
|
|
|
#include<linux/stat.h>
|
|
|
|
|
|
int mvme16x_scsi_detect(struct scsi_host_template *tpnt)
|
|
{
|
|
static unsigned char called = 0;
|
|
int clock;
|
|
long long options;
|
|
|
|
if (!MACH_IS_MVME16x)
|
|
return 0;
|
|
if (mvme16x_config & MVME16x_CONFIG_NO_SCSICHIP) {
|
|
printk ("SCSI detection disabled, SCSI chip not present\n");
|
|
return 0;
|
|
}
|
|
if (called)
|
|
return 0;
|
|
|
|
tpnt->proc_name = "MVME16x";
|
|
|
|
options = OPTION_MEMORY_MAPPED|OPTION_DEBUG_TEST1|OPTION_INTFLY|OPTION_SYNCHRONOUS|OPTION_ALWAYS_SYNCHRONOUS|OPTION_DISCONNECT;
|
|
|
|
clock = 66000000; /* 66MHz SCSI Clock */
|
|
|
|
ncr53c7xx_init(tpnt, 0, 710, (unsigned long)0xfff47000,
|
|
0, MVME16x_IRQ_SCSI, DMA_NONE,
|
|
options, clock);
|
|
called = 1;
|
|
return 1;
|
|
}
|
|
|
|
static int mvme16x_scsi_release(struct Scsi_Host *shost)
|
|
{
|
|
if (shost->irq)
|
|
free_irq(shost->irq, NULL);
|
|
if (shost->dma_channel != 0xff)
|
|
free_dma(shost->dma_channel);
|
|
if (shost->io_port && shost->n_io_port)
|
|
release_region(shost->io_port, shost->n_io_port);
|
|
scsi_unregister(shost);
|
|
return 0;
|
|
}
|
|
|
|
static struct scsi_host_template driver_template = {
|
|
.name = "MVME16x NCR53c710 SCSI",
|
|
.detect = mvme16x_scsi_detect,
|
|
.release = mvme16x_scsi_release,
|
|
.queuecommand = NCR53c7xx_queue_command,
|
|
.abort = NCR53c7xx_abort,
|
|
.reset = NCR53c7xx_reset,
|
|
.can_queue = 24,
|
|
.this_id = 7,
|
|
.sg_tablesize = 63,
|
|
.cmd_per_lun = 3,
|
|
.use_clustering = DISABLE_CLUSTERING
|
|
};
|
|
|
|
|
|
#include "scsi_module.c"
|