[PATCH][ATA] Add ide-disk led-trigger to ATA subsystem

From: Carsten Schlote
Date: Sat Jan 10 2009 - 10:30:07 EST


- Adds a call to ide-disk LED trigger to libata-sff.c
- Changed Kconfig to allow for ide-disk LED trigger when ATA drivers
are enabled.

Open Issue:
- There might be more suitable place to call the trigger function.
Only devices using libata-sff.c trigger LEDs right now.

Signed-off-by: Carsten Schlote <c.schlote@xxxxxxxxxxxxxx>
---
drivers/ata/libata-sff.c | 3 +++
drivers/leds/Kconfig | 2 +-
2 files changed, 4 insertions(+), 1 deletion(-)

Index: .kernel/drivers/leds/Kconfig
===================================================================
--- .kernel.orig/drivers/leds/Kconfig 2009-01-07 22:13:40.000000000
+0100
+++ .kernel/drivers/leds/Kconfig 2009-01-07 22:14:46.000000000 +0100
@@ -185,7 +185,7 @@

config LEDS_TRIGGER_IDE_DISK
bool "LED IDE Disk Trigger"
- depends on LEDS_TRIGGERS && BLK_DEV_IDEDISK
+ depends on LEDS_TRIGGERS && BLK_DEV_IDEDISK || ATA
help
This allows LEDs to be controlled by IDE disk activity.
If unsure, say Y.
Index: .kernel/drivers/ata/libata-sff.c
===================================================================
--- .kernel.orig/drivers/ata/libata-sff.c 2009-01-07 22:14:09.000000000
+0100
+++ .kernel/drivers/ata/libata-sff.c 2009-01-07 22:14:46.000000000 +0100
@@ -36,6 +36,7 @@
#include <linux/pci.h>
#include <linux/libata.h>
#include <linux/highmem.h>
+#include <linux/leds.h>

#include "libata.h"

@@ -647,6 +648,8 @@
*/
void ata_sff_exec_command(struct ata_port *ap, const struct
ata_taskfile *tf)
{
+ ledtrig_ide_activity();
+
DPRINTK("ata%u: cmd 0x%X\n", ap->print_id, tf->command);

iowrite8(tf->command, ap->ioaddr.command_addr);

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