| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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) |
| 5 | |
| 6 | #include "cpqfcTStrigger.h" |
| 7 | #if TRIGGERABLE_HBA |
| 8 | |
| 9 | #include <linux/kernel.h> |
| 10 | #include <linux/ioport.h> |
| 11 | #include <linux/types.h> |
| 12 | #include <linux/pci.h> |
| 13 | #include <asm/io.h> |
| 14 | |
| 15 | void TriggerHBA( void* IOBaseUpper, int Print) |
| 16 | { |
| 17 | __u32 long value; |
| 18 | |
| 19 | // get initial value in hopes of not modifying any other GPIO line |
| 20 | IOBaseUpper += 0x188; // TachTL/TS Control reg |
| 21 | |
| 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 |
| 26 | |
| 27 | writel( value, IOBaseUpper); |
| 28 | |
| 29 | if( Print) |
| 30 | printk( " -GPIO0 set- "); |
| 31 | } |
| 32 | |
| 33 | #endif |