Switching on/off the LEDs? How?

[melado]

Is it possible to switch on/off the PSP LEDs (wifi, power, MS) via software? I've read that last version of IR Shell can do this, but I don't know how it's done.

Thanks.

[Aura]

First, use the search, 2nd read the headers...

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int sceSysconCtrlLED(int SceLED, int state);

-Aura

[melado]

Hi! Thank you very much for your reply.

I did use the search but I couldn't find anything useful searching "led" or "leds". And if I search sceSysconCtrlLED, I find a thread, but it doesn't talk about that function.

I found the file with that function, but it says "only SCE_LED_POWER". Is this right? Isn't any way to control the other 2 LEDs?

Thanks again.

[Nekuz0r]

i suggest you to test other value by your self ;)
like 0, 2, 3 .... ;)

[M.Jackson]

i suggest you to test other value by your self ;)
like 0, 2, 3 .... ;)

If I remember correctly, none of those values can control the LEDs except the one for power. However, I did find some code from the IPL SDK that does work in controlling the other two LEDs:

#define REG32(a) *(volatile unsigned long *)(a)

// Turn on both LEDs at the same time
REG32( 0xbe240008 ) = 0xC0; /* GPIO SET */
// Turn off both LEDs
REG32(0xbe24000c) = 0xC0; /* GPIO CLEAR */

// Turn on the LED for memory stick
REG32( 0xbe240008 ) = 0x40;
// Turn off the LED for memory stick
REG32( 0xbe24000c ) = 0x40;

Hope it helps.

[SilverSpring]

Unless you plan to bypass the kernel completely dont use the IPL sdk to do it. It can produce unwanted side effects.

Use the sceLed lib instead (only controls ms/wlan leds).

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// led (0-ms, 1-wlan)
// mode (on/off, and some others)
// param controls a bunch of other things like blinking, the rate it blinks, how long to blink for, etc.
int sceLedSetMode(int led, int mode, SceLedParam *param);

Im sure someone will post a proper sample on how to use, *cough*adrahil*cough*.

[adrahil]

For the Power LED you should use Syscon call, but for WLAN/MS leds, you can use this:

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typedef struct{
  int oncnt;
  int offcnt;
  int endcnt;
  int endstat;
}SceLedParam;

#define LED_MODE_OFF 0
#define LED_MODE_ON 1
#define LED_MODE_TIMED 2
#define LED_MODE_DELAY 3

#define LED_TYPE_MS 0
#define LED_TYPE_WLAN 1

int sceLedSetMode(int led, int mode, SceLedParam* param);

Just link in the led.prx exports and off you go :) (Forget about modes 2 and 3, as 0 and 1 are enough)

[PSPfreak!]

Just link in the led.prx exports and off you go :) (Forget about modes 2 and 3, as 0 and 1 are enough)

as im a N00B do you mean like

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LoadStartModule("flash0:/kd/led.prx");

or

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SceUID mod;

	mod = LoadStartModule("flash0:/kd/led.prx");
	if &#40;mod < 0&#41;
	&#123;
		ErrorExit&#40;6000, "Error %08X loading/starting led.prx\n", mod&#41;;
	&#125;

and i found this code somewere and im not sure if it would help?

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#include <pspkernel.h>

//==============================
//Definitions for the LED function. For now, only
// the power LED is functioning....
#define POWER_LED 1

#define STATE_ON 1
#define STATE_OFF 0

extern int sceSysconCtrlLED&#40;int LedID,int state&#41;;
//==============================
&#91;...&#93;
while&#40;1&#41;&#123;
    sceSysconCtrlLED&#40;POWER_LED, STATE_ON&#41;;
    sceKernelDelayThreadCB&#40;100000&#41;;
    sceSysconCtrlLED&#40;POWER_LED, STATE_OFF&#41;;
    sceKernelDelayThreadCB&#40;100000&#41;;
&#125;
&#91;...&#93;

[Art]

It's good to see this finaly out, thanks.

Potential for controlling other devices through relays is really here with this
if you wanted to open a PSP to tap the LED ports.

I hope there is nothing naughty about doing it this way?
I don't notice any bad side effects.

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int sceSysconCtrlLED(int SceLED, int state);

		sceSysconCtrlLED(1,0);		// turn off LEDs
		sceSysconCtrlLED(0,0);
		sceSysconCtrlLED(2,0);
		sceSysconCtrlLED(3,0);

Cheers, Art.

[CodeKiller]

Is it possible to "take over" the leds? I mean to use the leds for own madess >:-) while using standard syscalls, that normally use the leds.
In specific: i wan't to use the wlan led, but also plan to use ad-hoc wlan (which is normally also blink the led) but i think they will interfere.

[J.F.]

You want to hook the LED functions so that you can call the original vectors, but everyone else gets your hook function.

[Torch]

Is there a way to turn off only *one* of the Power LEDs? There are actually 2 green LEDs for the Power.