Author: nwhitehorn
Date: Mon Feb 22 18:49:43 2010
New Revision: 204218
URL: http://svn.freebsd.org/changeset/base/204218
Log:
Provide a new useless feature: an led(4) interface for the system's sleep
LED.
Modified:
head/sys/powerpc/powermac/smu.c
Modified: head/sys/powerpc/powermac/smu.c
==============================================================================
--- head/sys/powerpc/powermac/smu.c Mon Feb 22 18:07:41 2010
(r204217)
+++ head/sys/powerpc/powermac/smu.c Mon Feb 22 18:49:43 2010
(r204218)
@@ -44,6 +44,7 @@ __FBSDID("$FreeBSD$");
#include <machine/bus.h>
#include <machine/md_var.h>
+#include <dev/led/led.h>
#include <dev/ofw/openfirm.h>
#include <dev/ofw/ofw_bus.h>
#include <powerpc/powermac/macgpiovar.h>
@@ -114,6 +115,8 @@ struct smu_softc {
/* Thermal management parameters */
int sc_target_temp; /* Default 55 C */
int sc_critical_temp; /* Default 90 C */
+
+ struct cdev *sc_leddev;
};
/* regular bus attachment functions */
@@ -133,6 +136,7 @@ static int smu_get_datablock(device_t de
static void smu_attach_fans(device_t dev, phandle_t fanroot);
static void smu_attach_sensors(device_t dev, phandle_t sensroot);
static void smu_fanmgt_callout(void *xdev);
+static void smu_set_sleepled(void *xdev, int onoff);
/* where to find the doorbell GPIO */
@@ -292,6 +296,11 @@ smu_attach(device_t dev)
callout_init(&sc->sc_fanmgt_callout, 1);
smu_fanmgt_callout(dev);
+ /*
+ * Set up LED interface
+ */
+ sc->sc_leddev = led_create(smu_set_sleepled, dev, "sleepled");
+
return (0);
}
@@ -853,3 +862,18 @@ smu_fanmgt_callout(void *xdev) {
ms_to_ticks(SMU_FANMGT_INTERVAL), smu_fanmgt_callout, smu);
}
+static void
+smu_set_sleepled(void *xdev, int onoff)
+{
+ struct smu_cmd cmd;
+ device_t smu = xdev;
+
+ cmd.cmd = SMU_MISC;
+ cmd.len = 3;
+ cmd.data[0] = SMU_MISC_LED_CTRL;
+ cmd.data[1] = 0;
+ cmd.data[2] = onoff;
+
+ smu_run_cmd(smu, &cmd);
+}
+
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