Bus services

gpio

This is "nn::gpio::IManager".

Cmd	Name
0	#OpenSessionForDev
1	#OpenSession
2	#OpenSessionForTest
3	IsWakeEventActive
4	GetWakeEventActiveFlagSet
5	SetWakeEventActiveFlagSetForDebug
6	SetWakePinDebugMode
7	[5.0.0+] #OpenSession2
8	[5.0.0+] IsWakeEventActive2
9	[5.0.0+] SetWakeEventActiveFlagSetForDebug2

OpenSessionForDev

Takes a raw GpioPadDescriptor and returns a #IPadSession session for it.

OpenSession

Same thing as OpenSessionForDev except the descriptor is looked up in the table below. Returns an #IPadSession session.

GpioPadName	GpioPadDescriptor	Tegra (port, pin)	Usage	Direction	Used by
0x01	0xCC	Z, 4	rt5639 power	Out	Audio services, Fatal services
0x02	0x24	E, 4	SDCard Power	Out	Filesystem services
0x03	0x3C	H, 4	BT_RST_PH4	Out	Bluetooth services
0x04	0xDA	BB, 2
0x05	0xDB	BB, 3	GcAsic Power	Out	Filesystem services
0x06	0xDC	BB, 4	Headphone Detect	In	Audio services
0x07	0x25	E, 5
0x08	0x90	S, 0	DebugPadDriver	In	HID services
0x09	0x91	S, 1
0x0A	0x96	S, 6	bq24192 Charge Enable	Out	PTM services
0x0B	0x97	S, 7
0x0C	0x26	E, 6	joycon(L) NwcpDriver0.GpioMonitorTask0 (insertion, Joy-Con pin 5/console TX, pulled low on insert?)	In	HID services
0x0D	0x05	A, 5	Fan enable (normal)	Out	PTM services
0x0E	0x78	P, 0	SDMMC3_CLK_PP0?
0x0F	0x93	S, 3	GcAsic irq	In	Filesystem services
0x10	0x7D	P, 5	SDMMC3_DAT0_PP5?
0x11	0x7C	P, 4	SDMMC3_DAT1_PP4?
0x12	0x7B	P, 3	SDMMC3_DAT2_PP3?
0x13	0x7A	P, 2	SDMMC3_DAT3_PP2?
0x14	0xBC	X, 4
0x15	0xAE	V, 6		In	Audio services
0x16	0xBA	X, 2	MOTION_INT_PX2?
0x17	0xB9	X, 1	Touchscreen irq (TOUCH_INT_PX1) (unused - polled instead)	In	HID services
0x18	0xBD	X, 5	Power Button (BUTTON_POWER_ON_PX5)	In
0x19	0xBE	X, 6	Volume Up (BUTTON_VOL_UP_PX6)	In	Boot2, Audio services
0x1A	0xBF	X, 7	Volume Down (BUTTON_VOL_DOWN_PX7)	In	Boot2, Audio services
0x1B	0xC0	Y, 0	max17050 irq	In	PTM services
0x1C	0xC1	Y, 1	BUTTON_HOME_PY1	In
0x1D	0xA9	V, 1	Backlight (LCD_BL_EN_PV1)	Out	NV services, Backlight services
0x1E	0xAA	V, 2	Backlight (LCD_RST_PV2)	Out	NV services
0x1F	0x55	K, 5	bq24192 OTG charge select	Out	PTM services, USB services
0x20	0xAD	V, 5	PD related	Out	USB services
0x21	0xC8	Z, 0	bq24192 irq	In	PTM services
0x22	0xCA	Z, 2
0x23	0xCB	Z, 3
0x24	0x4F	J, 7	Touchscreen reset	Out	HID services
0x25	0x50	K, 0
0x26	0x51	K, 1
0x27	0x52	K, 2
0x28	0x54	K, 4	bm92t36 irq	In	USB services
0x29	0x56	K, 6
0x2A	0x57	K, 7
0x2B	0x53	K, 3	joycon(R) NwcpDriver1.NwcpCharger	Out	HID services
0x2C	0xE3	CC, 3	joycon(L) NwcpDriver0.NwcpCharger	Out	HID services
0x2D	0x38	H, 0	WIFI_EN_PH0?
0x2E	0x39	H, 1	WIFI_RST_PH1	Out	Wlan services, PCIe services
0x2F	0x3B	H, 3	AP_WAKE_BT_PH3	Out	Bluetooth services
0x30	0x3D	H, 5
0x31	0x3F	H, 7
0x32	0x40	I, 0	Backlight +5V	Out	NV services
0x33	0x41	I, 1	Backlight -5V	Out	NV services
0x34	0x3E	H, 6	joycon(R) NwcpDriver1.GpioMonitorTask0 (insertion, Joy-Con pin 5/console TX, pulled low on insert?)	In	HID services
0x35	0xE2	CC, 2
0x36	0xE4	CC, 4	Fan enable (high power)	Out	PTM services
0x37	0x3A	H, 2
0x38	0xC9	Z, 1	SDCard Card Detect	In	Filesystem services
0x39	0x4D	J, 5	bq24192 OTG charge select	Out	PTM services, USB services
0x3A	0x58	L, 0	bq24192 OTG charge select	Out	PTM services, USB services
0x3B	0x3E	H, 6
0x3C	0x26	E, 6
0x3D	-1
0x3E	0x33	G, 3	joycon(R) NwcpDriver1.GpioMonitorTask1 (CTS, checked low)	In	HID services
0x3F	0x1C	D, 4	joycon(L) NwcpDriver0.GpioMonitorTask1 (CTS, checked low)	In	HID services
0x40	0xD9	BB, 1
0x41	0x0C	B, 4	Lid Closed (unused)
0x42	0x0D	B, 5
0x43	0x21	E, 1	USB power	Out	USB services
0x44	0x27	E, 7
0x45	0x92	S, 2
0x46	0x95	S, 5	USB root port 4 power	Out	USB services
0x47	0x98	T, 0	USB root port 3 power	Out	USB services
0x48	0x10	C, 0	HdmiHotplug	Out	NV services
0x49	0x11	C, 1	USB root port 2 power	Out	USB services
0x4A	0x12	C, 2	HdmiHotplug	Out	NV services
0x4B	0x42	I, 2
0x4C	0xE6	CC, 6
--	0xE1	CC, 1	HdmiHotplug (HDMI_INT_DP_HPD_PCC1)	In	NV services

OpenSessionForTest

Same as #OpenSession but panics on failure.

OpenSession2

Same as #OpenSession but takes a DeviceCode instead of a GpioPadName.

IPadSession

This is "nn::gpio::IPadSession".

Cmd	Name
0	SetDirection
1	GetDirection
2	SetInterruptMode
3	GetInterruptMode
4	SetInterruptEnable
5	GetInterruptEnable
6	GetInterruptStatus
7	ClearInterruptStatus
8	SetValue
9	GetValue
10	BindInterrupt
11	UnbindInterrupt
12	SetDebounceEnabled
13	GetDebounceEnabled
14	SetDebounceTime
15	GetDebounceTime
16	[4.0.0+] SetValueForSleepState

GpioPadDescriptor

Bits	Description
7-5	Controller index
4-3	Port index
2-0	Pin number

i2c, i2c:pcv

This is "nn::i2c::IManager".

Cmd	Name
0	OpenSessionForDev
1	OpenSession
2	HasDevice
3	HasDeviceForDev

Known Devices

Name	Port:Addr	10bit?	Speed	Max Retries	Retry Delay	Usage	Used by
0	0:52	N	100000	0	0	DebugPadDriver	HID services
1	2:49	N	400000	0	0	STM touchscreen	HID services
2	0:4c	N	100000	0	0	TI Temperature Sensor (tmp451)	PTM services
3	0:4c	N	100000	0	0	duplicate, unused entry?
4	0:1c	N	100000	0	0	Audio codec (rt5639)	Audio services, Fatal services
5	4:68	N	400000	3	5000000	max77620_rtc0, max77620_irq0	PCV services
6	4:3c	N	400000	3	5000000	PMIC (max77620), max77620_irq0	PCV services
7	4:1b	N	400000	3	5000000	max77621_cpu	PCV services
8	4:1c	N	400000	3	5000000	max77621_gpu	PCV services
9	0:6b	N	100000	3	5000000	TI Charger (bq24192)	PTM services
10	0:36	N	100000	3	5000000	Maxim Fuel Gauge (max17050)	PCV services, PTM services
11	0:18	N	100000	3	5000000	USB-PD controller (rohm bm92t36)	USB services
12	1:40	N	400000	3	5000000
13	1:41	N	400000	3	5000000
14	1:44	N	400000	3	5000000
15	1:45	N	400000	3	5000000
16	1:46	N	400000	3	5000000
17	1:47	N	400000	3	5000000
18	1:29	N	400000	3	5000000	rohm ambient light sensor (bh1730fvc)	Backlight services
19	1:48	N	400000	3	5000000
20	1:49	N	400000	3	5000000
21	1:4a	N	400000	3	5000000
22	1:4b	N	400000	3	5000000
23	1:4d	N	400000	3	5000000
24	3:50	N	100000	0	0	DisplayHdmiHotplugHandler	NV services
25	3:54	N	100000	0	0	DisplayHdmiHotplugHandler	NV services
26	3:3a	N	100000	0	0	DisplayHdmiHotplugHandler	NV services

This table is believed to be complete - entries with empty "Used by" column haven't been seen being used (devices not present on switch?).

II2cSession

This is "nn::i2c::ISession".

Cmd	Name
0	Send
1	Receive
2	ExecuteCommandList
10	SendAuto
11	ReceiveAuto
12	ExecuteCommandListAuto

uart

This is "nn::uart::IManager".

Cmd	Name
0	DoesUartExist
1	DoesUartExistForTest
2	SetUartBaudrate
3	SetUartBaudrateForTest
4	IsSomethingUartValid
5	IsSomethingUartValidForTest
6	GetSession
7	IsSomethingUartValid2
8	IsSomethingUartValid2ForTest

IPortSession

This is "nn::uart::IPortSession".

Cmd	Name	Notes
0	OpenSession	Takes marshalled arguments
1	OpenSessionForTest	Takes marshalled arguments
2
3		Takes marshalled arguments
4		Returns 2x u64. Both zero.
5
6
7

Port Mapping

OpenSession translates user IDs to to the uart port index.

OpenSessionForTest takes the port index verbatim.

Name	Port	Usage
1	UART-D	Bluetooth
2	UART-B	Joycon(R)
3	UART-C	Joycon(L)

pwm

This is "nn::pwm::IManager".

Cmd	Name
0	OpenSessionForDev
1	OpenSession

Known Channels

Name	Interface	Usage	Used by
1	PWM Channel 1	Fan	PTM services
2	PWM Channel 0	Backlight	Backlight services, NV services
3	PMC Blinker

IChannelSession

This is "nn::pwm::IChannelSession".

Cmd	Name
0	SetPeriod
1	GetPeriod
2	SetDuty
3	GetDuty
4	SetEnabled
5	GetEnabled

pinmux

This is "nn::pinmux::IManager".

Cmd	Name
0	OpenSession

ISession

This is "nn::pinmux::ISession".

Cmd	Name
0
1
2

sasbus

This is "nn::sasbus::IManager".

Cmd	Name
0	OpenSession

ISession

This is "nn::sasbus::ISession".

Cmd	Name
0
1
2
3