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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [scsi/] [cpqfcTStrigger.c] - Rev 1774
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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 "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 *io_upper, int print) { __u32 long value; // get initial value in hopes of not modifying any other GPIO line io_upper += 0x188; // TachTL/TS Control reg value = readl(io_upper); // 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, io_upper); if (print) printk(" -GPIO0 set- "); } #endif
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