Nintendo Switch Brew

Joy-Con: Difference between revisions

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Joy-Con codenames were reversed, can confirm this with prototype board labels and also Japanese history
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| [[#HidMotorData|MotorData]]
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| [[#HidMotorData|MotorData]]
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| [[#HidMotorData|MotorData]]
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| [[#HidMotorData|MotorData]]
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| 0x82 ||  
|}
== HidMotorData ==
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0 || 0x4 || [[#VibrationAmFmPackTag|JoyLeftVibrationAmFmPackTag]]
|-
| 0x4 || 0x8 || [[#VibrationAmFmPackTag|JoyRightVibrationAmFmPackTag]]
|}
== VibrationAmFmPackTag ==
This is "nn::xcd::VibrationAmFmPackTag". This is a BitPack object.
=== VibrationAmFmPackFormatZero ===
{| class="wikitable" border="1"
! Bits
! Description
|-
| 0-29 || Reserved
|-
| 30-31 || PackFormat (must be 0)
|}
=== VibrationAmFmPackFormatOne ===
{| class="wikitable" border="1"
! Bits
! Description
|-
| 0-19 || Reserved
|-
| 20-24 || ChannelCodesHigh
|-
| 25-29 || ChannelCodesLow
|-
| 30-31 || PackFormat (must be 1)
|}
=== VibrationAmFmPackFormatOne28bit ===
{| class="wikitable" border="1"
! Bits
! Description
|-
| 0-1 || Reserved
|-
| 2-8 || ChannelFrequencyHigh
|-
| 9-15 || ChannelAmplitudeHigh
|-
| 16-22 || ChannelFrequencyLow
|-
| 23-29 || ChannelAmplitudeLow
|-
| 30-31 || PackFormat (must be 1)
|}
=== VibrationAmFmPackFormatTwo ===
{| class="wikitable" border="1"
! Bits
! Description
|-
| 0-9 || Reserved
|-
| 10-14 || VibrationCodesHigh
|-
| 15-19 || VibrationCodesLow
|-
| 20-24 || ChannelCodesHigh
|-
| 25-29 || ChannelCodesLow
|-
| 30-31 || PackFormat (must be 2)
|}
=== VibrationAmFmPackFormatTwo14bitLow ===
{| class="wikitable" border="1"
! Bits
! Description
|-
| 0 || IsChannelHigh (must be 0)
|-
| 1-7 || ChannelFrequency
|-
| 8-12 || VibrationCodesHigh1
|-
| 13-17 || VibrationCodesLow1
|-
| 18-22 || VibrationCodesHigh0
|-
| 23-29 || ChannelAmplitude
|-
| 30-31 || PackFormat (must be 2)
|}
=== VibrationAmFmPackFormatTwo14bitHigh ===
{| class="wikitable" border="1"
! Bits
! Description
|-
| 0 || IsChannelHigh (must be 1)
|-
| 1-7 || ChannelFrequency
|-
| 8-12 || VibrationCodesHigh1
|-
| 13-17 || VibrationCodesLow1
|-
| 18-22 || VibrationCodesLow0
|-
| 23-29 || ChannelAmplitude
|-
| 30-31 || PackFormat (must be 2)
|}
=== VibrationAmFmPackFormatThree ===
{| class="wikitable" border="1"
! Bits
! Description
|-
| 0-4 || VibrationCodesHigh1
|-
| 5-9 || VibrationCodesLow1
|-
| 10-14 || VibrationCodesHigh0
|-
| 15-19 || VibrationCodesLow0
|-
| 20-24 || ChannelCodesHigh
|-
| 25-29 || ChannelCodesLow
|-
| 30-31 || PackFormat (must be 3)
|}
=== VibrationAmFmPackFormatThree7bit ===
{| class="wikitable" border="1"
! Bits
! Description
|-
| 0 || IsChannelHigh
|-
| 1 || IsThree7bit (must be 1)
|-
| 2 || IsFm
|-
| 3-7 || VibrationCodesHigh1
|-
| 8-12 || VibrationCodesLow1
|-
| 13-17 || VibrationCodesHigh0
|-
| 18-22 || VibrationCodesLow0
|-
| 23-29 || ChannelAmFm
|-
| 30-31 || PackFormat (must be 1, instead of 3)
|}
== AmFmCodes ==
These are 32-bit values used by the Joy-Con firmware to represent combinations of amplitude/frequency pairs for vibration.
=== Unpacking ===
The Joy-Con firmware receives vibration data packed as [[#VibrationAmFmPackTag|VibrationAmFmPackTag]] from output reports. Depending on the packing format, these tags are then converted to an array of AmFmCodes as follows.
==== AmFm5BitCodes ====
Converted from [[#VibrationAmFmPackFormatOne|VibrationAmFmPackFormatOne]], [[#VibrationAmFmPackFormatTwo|VibrationAmFmPackFormatTwo]] or [[#VibrationAmFmPackFormatThree|VibrationAmFmPackFormatThree]].
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0 || 0x4 || <nowiki>(ChannelCodesLow & 0x1F)</nowiki>
|-
| 0x4 || 0x4 || <nowiki>(ChannelCodesHigh & 0x1F)</nowiki>
|-
| 0x8 || 0x4 || <nowiki>(VibrationCodesLow0 & 0x1F)</nowiki>
|-
| 0xC || 0x4 || <nowiki>(VibrationCodesHigh0 & 0x1F)</nowiki>
|-
| 0x10 || 0x4 || <nowiki>(VibrationCodesLow1 & 0x1F)</nowiki>
|-
| 0x14 || 0x4 || <nowiki>(VibrationCodesHigh1 & 0x1F)</nowiki>
|}
==== AmFm7BitOneCodes ====
Converted from [[#VibrationAmFmPackFormatOne28bit|VibrationAmFmPackFormatOne28bit]].
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0 || 0x4 || <nowiki>(((ChannelFrequencyLow & 0x7F) << 8) | (ChannelAmplitudeLow & 0x7F) | 0x8080)</nowiki>
|-
| 0x4 || 0x4 || <nowiki>(((ChannelFrequencyHigh & 0x7F) << 8) | (ChannelAmplitudeHigh & 0x7F) | 0x8080)</nowiki>
|}
==== AmFm7BitTwoCodes ====
Converted from [[#VibrationAmFmPackFormatTwo14bitLow|VibrationAmFmPackFormatTwo14bitLow]] or [[#VibrationAmFmPackFormatTwo14bitHigh|VibrationAmFmPackFormatTwo14bitHigh]].
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0 || 0x4 || <nowiki>IsChannelHigh ? (VibrationCodesLow0 & 0x1F) : (((ChannelFrequency & 0x7F) << 8) | (ChannelAmplitude & 0x7F) | 0x8080)</nowiki>
|-
| 0x4 || 0x4 || <nowiki>IsChannelHigh ? (((ChannelFrequency & 0x7F) << 8) | (ChannelAmplitude & 0x7F) | 0x8080) : (VibrationCodesHigh0 & 0x1F)</nowiki>
|-
| 0x8 || 0x4 || <nowiki>(VibrationCodesLow1 & 0x1F)</nowiki>
|-
| 0xC || 0x4 || <nowiki>(VibrationCodesHigh1 & 0x1F)</nowiki>
|-
| 0x10 || 0x4 || <nowiki>Always 0x18</nowiki>
|-
| 0x14 || 0x4 || <nowiki>Always 0x18</nowiki>
|}
==== AmFm7BitThreeCodes ====
Converted from [[#VibrationAmFmPackFormatThree7bit|VibrationAmFmPackFormatThree7bit]].
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0 || 0x4 || <nowiki>IsChannelHigh ? 0x18 : (IsFm ? (((ChannelAmFm & 0x7F) << 8) | 0x8000) : ((ChannelAmFm & 0x7F) | 0x80))</nowiki>
|-
| 0x4 || 0x4 || <nowiki>IsChannelHigh ? (IsFm ? (((ChannelAmFm & 0x7F) << 8) | 0x8000) : ((ChannelAmFm & 0x7F) | 0x80)) : 0x18</nowiki>
|-
| 0x8 || 0x4 || <nowiki>(VibrationCodesLow0 & 0x1F)</nowiki>
|-
| 0xC || 0x4 || <nowiki>(VibrationCodesHigh0 & 0x1F)</nowiki>
|-
| 0x10 || 0x4 || <nowiki>(VibrationCodesLow1 & 0x1F)</nowiki>
|-
| 0x14 || 0x4 || <nowiki>(VibrationCodesHigh1 & 0x1F)</nowiki>
|}
|}


Retrieved from "https://switchbrew.org/wiki/Joy-Con"