linux/drivers/scsi/cpqfcTStrigger.c
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

34 lines
901 B
C

// Routine to trigger Finisar GTA analyzer. Runs of GPIO2
// NOTE: DEBUG ONLY! Could interfere with FCMNGR/Miniport operation
// since it writes directly to the Tachyon board. This function
// developed for Compaq HBA Tachyon TS v1.2 (Rev X5 PCB)
#include "cpqfcTStrigger.h"
#if TRIGGERABLE_HBA
#include <linux/kernel.h>
#include <linux/ioport.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <asm/io.h>
void TriggerHBA( void* IOBaseUpper, int Print)
{
__u32 long value;
// get initial value in hopes of not modifying any other GPIO line
IOBaseUpper += 0x188; // TachTL/TS Control reg
value = readl( IOBaseUpper);
// set HIGH to trigger external analyzer (tested on Dolche Finisar 1Gb GTA)
// The Finisar anaylzer triggers on low-to-high TTL transition
value |= 0x01; // set bit 0
writel( value, IOBaseUpper);
if( Print)
printk( " -GPIO0 set- ");
}
#endif