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// 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 <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- ");
}
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