SceSyscon

Module

Known NIDs

Version	Name	World	Privilege	NID
1.69	SceSyscon	Non-secure	Kernel	0x250E65E7

Libraries

Known NIDs

Version	Name	World	Visibility	NID
1.69	SceSysconForDriver	Non-secure	Kernel	0x60A35F64

SceSysconForDriver

Types

typedef struct SceSysconPacket {
	struct SceSysconPacket *next;
	u32 status;
	SceUID semaId;
	u32 unk;
	u8 tx[32]; // tx[0..1] = cmd, tx[2] = size
	u8 rx[32]; // rx[0..1] = cmd?, rx[2] = size?
	u32 unk1[4];
	int (*callback)(SceSysconPacket *packet, void *argp);
	void *argp;
	u32 time;
	u32 unk2[5];
} SceSysconPacket; /* size 0x80 */

Read command, used by SceRtc

Version	World	NID
3.60	non-secure	0x299B1CE7

int syscon_read_command(uint32_t id, void *buffer, int size);

Get syscon timestamp

Version	World	NID
3.60	non-secure	0x4D588A0A

int sceSysconGetTimeStamp(char timeStamp[16]);

Wait syscon initialized

Version	World	NID
3.60	non-secure	0x55DF1C9B

int sceSysconWaitInitialized(void);

Set ADV7533 CDC HPD pin state

Version	World	NID
3.60	non-secure	0x62155962

Sets the pin CDC Hot Plug Detect (HPD) state of the HDMI bridge (ADV7533).

int SceSysconForDriver_62155962(int enable_HDMI_CDC_HPD_pin);

Sync

Version	World	NID
3.60	non-secure	0x6E517D22

int ksceSysconCmdSync(SceSysconPacket *packet, int noWait);

MSIF (Memory card) power

Version	World	NID
3.60	non-secure	0x710A7CF0

int SceSysconForDriver_710A7CF0(int enable_power);

Reset device

Version	World	NID
1.69	non-secure	0x8A95D35C

int syscon_reset_device(int type, int unk);

It issues SMC #0 with r12 = 0x11A.

The unk argument is usually set to 0x2 or sometimes 0x8002 (which seems to correspond to some request by the UDC and BT drivers).

The type argument determines what to do.

Type	Description
0	Power of the device.
1	Enter low-power (suspend) state.
2	Cold reset.
3	Reset to update mode?
4	Reset to update mode?
5	Hibernate.
16	??
17	Suspend and immediately resume (soft reset).

Command exec

Version	World	NID
3.60	non-secure	0x9ADDCA4A

int sceSysconCmdExec(SceSysconPacket *packet, unsigned int flags);

sceSysconCtrlSdPowerForDriver

Version	World	NID
3.60	non-secure	0xBE1ADE4F

int sceSysconCtrlSdPowerForDriver(int enable_power);

sceSysconCmdExecAsyncForDriver

Version	World	NID
3.60	non-secure	0xC2224E82

int sceSysconCmdExecAsyncForDriver(SceSysconPacket *packet, u32 flags, int (*callback)(SceSysconPacket *, void *), void *argp);

sceSysconCmdSendForDriver

Version	World	NID
1.69	non-secure	0xE26488B9

// used by SceRtc and ScePower
int sceSysconCmdSendForDriver(uint32_t id, void *args, int size);

sceSysconSetDebugHandlersForDriver

Version	World	NID
3.60	non-secure	0xF245CD6F

/** A set of debug handlers for syscon, that you can set in sceSysconSetDebugHandlersForDriver(). */
typedef struct SceSysconDebugHandlers {
    /** Structure size (probably, unused). */
    s32 size;
    /** Callback ran right before running a packet, with a pointer to it passed as the first argument. */
    void (*start)(SceSysconPacket *packet);
    /** Callback ran right after finishing running a packet, with a pointer to it passed as the first argument. */
    void (*end)(SceSysconPacket *packet);
} SceSysconDebugHandlers;

int sceSysconSetDebugHandlersForDriver(void);

sceSysconGetBaryonVersionForDriver

Version	World	NID
3.60	non-secure	0xFF86F4C5

int sceSysconGetBaryonVersionForDriver(void);

Commands used by function

It seems like the command format is as follows: (direction << 8) | cmd_id, where direction = 1 means write to syscon, and direction = 0 means read from syscon.

Commands used	NID	Description
0x800	0xA2FE9BF9	??
0x001	0x270B7B0B	??
0x805	0xEF810687	sceSysconGetUsbDetStatusForDriver
0x806	0xE7F5D3DC	Reboots Vita?
0x807	0x253CC522	??
0x820	0x727F985A	??
0x840	0x4FEC564C	sceSysconGetManualChargeModeForDriver
0x841	0x3C3B949C	??
0x842	0x1C29C00E	??
0x843	0x730E4725	??
0x880	0xA039B563	??
0x881	0x9BF78047	??
0x884	0x3FDD29D6	??
0x885	0x79E6DD8B	??
0x886	0x62155962	sceSysconCtrlHdmiCecPowerForDriver
0x887	0x063425AE	??
0x888	0xBE1ADE4F	sceSysconCtrlSdPowerForDriver
0x889	0x8D1D97E8	??
0x88A	0xA2E85DB9	??
0x88B	0x5A614349	??
0x88C	0xB872E904	??
0x88D	0xDD16ABD9	??
0x88E	0x7F198FA2	??
0x88F	0x40FF3898	??
0x890	0x285594F8	??
0x891	0x04EC7579	sceSysconCtrlLEDForDriver
0x892	0x596B17B7	??
0x893	0x2A4B0437	??
0x899	0x5CDDA14D	??
0x89A	0x59DC5938	??
0x89B	0x710A7CF0	sceSysconCtrlMsPowerForDriver
0x89C	0xB1F88B11	??
0x89D	0x6F586D1A	sceSysconConfigLEDForDriver?
0x89E	0x9CA6EB70	??
0x89F	0xCB41B531	??
0x900, 0x802	0xC562AF3A	??
0x901, 0x803	0x03F11220	??
0x902	0xAD0A8275	??
0x903	0x26F9D729	??
0x981	0x9070F139	??
0x982	0x00A65FC1	??
0x983	0x0826BA07	??
0x984	0xB841C141	??
0x985	0x91D3B7A3	??
0x98A	0xF93CF833	??
0x98B	0xE1885F68	??
0x98C	0xCD73079D	??

Callbacks

All the following exports have this function prototype: int sceSysconSet*Callback(void (*func)(int enable, void *argp), void *argp);.

NID	Function	Description
0x129EA022	??	??
0x14730196	??	??
0x2D471528	??	??
0x32418370	sceSysconSetAlarmCallbackForDriver?	SYSCON_CB_ALARM
0x3F0DB7C0	sceSysconSetLowBatteryCallbackForDriver	SYSCON_CB_LOW_BATTERY
0x773B8126	sceSysconSetThermalAlertCallbackForDriver	SYSCON_CB_THERMAL_ALERT
0x80D6E061	??	??
0x9F8340FF	??	??