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