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Provide a new useless feature: an led(4) interface for the system's sleep

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LED.
This commit is contained in:
Nathan Whitehorn 2010-02-22 18:49:43 +00:00
parent 41a11d8753
commit 90a1456b12
1 changed files with 24 additions and 0 deletions
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24
sys/powerpc/powermac/smu.c
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@ -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 dev, int8_t id, uint8_t *buf,
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);
}