Difference between revisions of "Ring-Con"

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|-
 
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! Input cmd u32 || Input cmd size || Reply size
 
! Input cmd u32 || Input cmd size || Reply size
 +
|-
 +
| 0x020000 || 0x4 || 0x8
 
|-
 
|-
 
| 0x020101 || 0x4 || 0x8
 
| 0x020101 || 0x4 || 0x8
 
|}
 
|}
 +
 +
== 0x20000 ==
 +
The two u8s at reply+0x4 are copied to an output struct.
  
 
== 0x020101 ==
 
== 0x020101 ==
 
This is used with EnableJoyPollingReceiveMode/GetJoyPollingReceivedData. Reply+0x4 is an u16 which is copied to an output struct, the [[HID_services#JoyPollingReceivedData|timestamp]] is also copied.
 
This is used with EnableJoyPollingReceiveMode/GetJoyPollingReceivedData. Reply+0x4 is an u16 which is copied to an output struct, the [[HID_services#JoyPollingReceivedData|timestamp]] is also copied.

Revision as of 16:32, 13 March 2020

This page documents how the Ring Fit Adventure game uses hidbus for using the Ring-Con ExternalDevice, which attaches to Joy-Cons.

The BusType used with GetBusHandle is value 0 or 1.

The ExternalDeviceId is 0x20. After EnableExternalDevice is used successfully during initialization, EnableJoyPollingReceiveMode(flag=true) is used with 4-byte command 0x020101. For cleanup, DisableJoyPollingReceiveMode is used then on success EnableExternalDevice(flag=false) is used.

Commands (input data for EnableJoyPollingReceiveMode / SendAndReceive) start with the u32 cmd, there's generally no data after that. Data in the replies are at least 0x4-bytes, with fields being 4-byte aligned. Reply+0 is the u8 status. When the output size doesn't match the expected size, or status is non-zero, error 0xEDA is returned. When status is non-zero, a func is called with the status value which updates global state.

The status field is not listed below since all replies have it.

CRC

Some commands/replies use CRC(s) for validating the previous N-bytes prior to the CRC. When the CRC is invalid, the app sets an output flag indicating invalid CRC and skips writing output-data to the output-param.

This CRC doesn't use Xor(In/Out)/Reflect(In/Out). The polynomial is 0x8D.

Commands

Input cmd u32 Input cmd size Reply size
0x020000 0x4 0x8
0x020101 0x4 0x8

0x20000

The two u8s at reply+0x4 are copied to an output struct.

0x020101

This is used with EnableJoyPollingReceiveMode/GetJoyPollingReceivedData. Reply+0x4 is an u16 which is copied to an output struct, the timestamp is also copied.