Difference between revisions of "HID Shared Memory"

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HID shared memory is a 0x40000 byte read-only segment of memory shared between applications for input. The segment contains structures for most if not all input methods available to applications.
+
#REDIRECT [[HID_services]]
 
 
= Memory Map =
 
 
 
{| class="wikitable" border="1"
 
|-
 
!  Offset
 
!  Size in bytes
 
!  Description
 
|-
 
| 0x400
 
| 0x3000
 
| Capacitive Touchscreen
 
|-
 
| 0x3400
 
| 0x400
 
| Mouse
 
|-
 
| 0x3800
 
| 0x400
 
| Keyboard
 
|-
 
| 0x3C00
 
| 0x400
 
| Unknown, header and 17 entries
 
|-
 
| 0x4000
 
| 0x400
 
| Unknown, header and 17 entries
 
|-
 
| 0x4400
 
| 0x400
 
| Unknown, header and 17 entries
 
|-
 
| 0x4800
 
| 0x400
 
| Unknown, header and 17 entries
 
|-
 
| 0x4C00
 
| 0x200
 
| Unknown
 
|-
 
| 0x4E00
 
| 0x200
 
| Unknown
 
|-
 
| 0x5000
 
| 0x200
 
| Unknown
 
|-
 
| 0x5A00
 
| 0x4000
 
| Controller Serials?
 
|-
 
| 0x9A00
 
| 0x32000
 
| Controllers
 
|-
 
| 0x3BA00
 
| 0x4600
 
| Unknown
 
|-
 
|}
 
 
 
== Capacitive Touchscreen ==
 
 
 
{| class="wikitable" border="1"
 
|-
 
!  Offset
 
!  Size in bytes
 
!  Description
 
|-
 
| 0x0
 
| 0x28
 
| Touch Header
 
|-
 
| 0x28
 
| 0x290 * 17
 
| Touch Entries
 
|-
 
|}
 
 
 
=== Touch Header ===
 
 
 
{| class="wikitable" border="1"
 
|-
 
!  Offset
 
!  Size in bytes
 
!  Description
 
|-
 
| 0x0
 
| 0x4
 
| Unk
 
|-
 
| 0x4
 
| 0x4
 
| Unk
 
|-
 
| 0x8
 
| 0x4
 
| Unk
 
|-
 
| 0xC
 
| 0x4
 
| Unk
 
|-
 
| 0x10
 
| 0x8
 
| Unk
 
|-
 
| 0x18
 
| 0x8
 
| Unk
 
|-
 
| 0x20
 
| 0x8
 
| Timestamp
 
|-
 
|}
 
 
 
=== Touch Entry ===
 
 
 
{| class="wikitable" border="1"
 
|-
 
!  Offset
 
!  Size in bytes
 
!  Description
 
|-
 
| 0x0
 
| 0x10
 
| Touch Entry Header
 
|-
 
| 0x10
 
| 0x28 * 16
 
| Touch Data
 
|-
 
|}
 
 
 
==== Touch Structure Header ====
 
{| class="wikitable" border="1"
 
|-
 
!  Offset
 
!  Size in bytes
 
!  Description
 
|-
 
| 0x0
 
| 0x8
 
| Timestamp
 
|-
 
| 0x8
 
| 0x8
 
| Number of Touches
 
|-
 
|}
 
 
 
==== Touch Data Entry ====
 
{| class="wikitable" border="1"
 
|-
 
!  Offset
 
!  Size in bytes
 
!  Description
 
|-
 
| 0x0
 
| 0x8
 
| Timestamp
 
|-
 
| 0x8
 
| 0x8
 
| Unknown
 
|-
 
| 0x10
 
| 0x4
 
| Touch X
 
|-
 
| 0x14
 
| 0x4
 
| Touch Y
 
|-
 
| 0x18
 
| 0x4
 
| Touch Diameter X
 
|-
 
| 0x1C
 
| 0x4
 
| Touch Diameter Y
 
|-
 
| 0x20
 
| 0x4
 
| Angle
 
|-
 
| 0x24
 
| 0x4
 
| Unknown
 
|-
 
|}
 
 
 
== Mouse ==
 
 
 
{| class="wikitable" border="1"
 
|-
 
!  Offset
 
!  Size in bytes
 
!  Description
 
|-
 
| 0x0
 
| 0x20
 
| Mouse Header
 
|-
 
| 0x20
 
| 0x30 * 17
 
| Mouse Entries
 
|-
 
|}
 
 
 
=== Mouse Header ===
 
 
 
{| class="wikitable" border="1"
 
|-
 
!  Offset
 
!  Size in bytes
 
!  Description
 
|-
 
| 0x0
 
| 0x4
 
| Timestamp?
 
|-
 
| 0x4
 
| 0x4
 
| Unknown
 
|-
 
| 0x8
 
| 0x4
 
| Unknown
 
|-
 
| 0xC
 
| 0x4
 
| Unknown
 
|-
 
| 0x10
 
| 0x8
 
| 6 when connected, 1 disconnected
 
|-
 
| 0x18
 
| 0x8
 
| Unknown
 
|-
 
|}
 
 
 
=== Mouse Entry ===
 
 
 
{| class="wikitable" border="1"
 
|-
 
!  Offset
 
!  Size in bytes
 
!  Description
 
|-
 
| 0x0
 
| 0x8
 
| Timestamp
 
|-
 
| 0x8
 
| 0x8
 
| Timestamp Again?
 
|-
 
| 0x10
 
| 0x4
 
| Mouse X
 
|-
 
| 0x14
 
| 0x4
 
| Mouse Y
 
|-
 
| 0x18
 
| 0x4
 
| Mouse X Change
 
|-
 
| 0x1C
 
| 0x4
 
| Mouse Y Change
 
|-
 
| 0x20
 
| 0x4
 
| Scroll Change Y
 
|-
 
| 0x24
 
| 0x4
 
| Scroll Change X?
 
|-
 
| 0x28
 
| 0x8
 
| Mouse Buttons
 
|-
 
|}
 
 
 
 
 
== Keyboard ==
 
 
 
{| class="wikitable" border="1"
 
|-
 
!  Offset
 
!  Size in bytes
 
!  Description
 
|-
 
| 0x0
 
| 0x20
 
| Keyboard Header
 
|-
 
| 0x20
 
| 0x30 * 17
 
| Keyboard Entries
 
|-
 
|}
 
 
 
=== Keyboard Header ===
 
 
 
{| class="wikitable" border="1"
 
|-
 
!  Offset
 
!  Size in bytes
 
!  Description
 
|-
 
| 0x0
 
| 0x4
 
| Timestamp?
 
|-
 
| 0x4
 
| 0x4
 
| Unknown
 
|-
 
| 0x8
 
| 0x4
 
| Unknown
 
|-
 
| 0xC
 
| 0x4
 
| Unknown
 
|-
 
| 0x10
 
| 0x8
 
| 6 when connected
 
|-
 
| 0x18
 
| 0x8
 
| Unknown
 
|-
 
|}
 
 
 
=== Keyboard Entry ===
 
 
 
{| class="wikitable" border="1"
 
|-
 
!  Offset
 
!  Size in bytes
 
!  Description
 
|-
 
| 0x0
 
| 0x8
 
| Timestamp
 
|-
 
| 0x8
 
| 0x8
 
| Timestamp Again?
 
|-
 
| 0x10
 
| 0x4
 
| Modifier Mask
 
|-
 
| 0x18
 
| 0x20
 
| Keys Down, each key gets one bit based on the HID keyboard scan code (F1 is 0x3A, bit 0x3A is set)
 
|-
 
|}
 
 
 
 
 
== Controller Serials? ==
 
 
 
This section contains a series of 16 structures 0x400 bytes large.
 
 
 
{| class="wikitable" border="1"
 
|-
 
!  Offset
 
!  Size in bytes
 
!  Description
 
|-
 
| 0x30
 
| 0xE
 
| Controller Serial
 
|-
 
| 0x60
 
| 0xE
 
| Controller Serial
 
|-
 
|}
 
 
 
== Controllers ==
 
 
 
This section contains a series of 10 0x5000 byte structures describing each available controller.
 
{| class="wikitable" border="1"
 
|-
 
!  Controller Index
 
!  Description
 
|-
 
| 0 to 7
 
| Players 1 to 8
 
|-
 
| 8
 
| Handheld Mode
 
|-
 
| 9
 
| Unknown
 
|-
 
|}
 
 
 
=== Controller ===
 
 
 
{| class="wikitable" border="1"
 
|-
 
!  Offset
 
!  Size in bytes
 
!  Description
 
|-
 
| 0x0
 
| 0x28
 
| Controller Header
 
|-
 
| 0x3A0
 
| 0x28 * 17
 
| Controller Joined States
 
|-
 
| 0x10E0
 
| 0x28 * 17
 
| Controller Left States
 
|-
 
| 0x1430
 
| 0x28 * 17
 
| Controller Right States
 
|-
 
| 0x41D0
 
| 0x10
 
| Controller MAC
 
|-
 
| 0x41F0
 
| 0x10
 
| Controller MAC
 
|-
 
|}
 
 
 
==== Controller Header ====
 
 
 
{| class="wikitable" border="1"
 
|-
 
!  Offset
 
!  Size in bytes
 
!  Description
 
|-
 
| 0x0
 
| 0x4
 
| Status, bit3 pair, bit4 left, bit5 right
 
|-
 
| 0x4
 
| 0x4
 
| Is Joy-Con Half
 
|-
 
| 0x8
 
| 0x4
 
| Unknown, 2 for Joy-Con pair
 
|-
 
| 0xC
 
| 0x4
 
| RGBA Body Color (single Joy-Con)
 
|-
 
| 0x10
 
| 0x4
 
| RGBA Button Color (single Joy-Con)
 
|-
 
| 0x14
 
| 0x4
 
| Unknown
 
|-
 
| 0x18
 
| 0x4
 
| RGBA Body Color (right Joy-Con)
 
|-
 
| 0x1C
 
| 0x4
 
| RGBA Button Color (right Joy-Con)
 
|-
 
| 0x20
 
| 0x4
 
| RGBA Body Color (left Joy-Con)
 
|-
 
| 0x24
 
| 0x4
 
| RGBA Button Color (left Joy-Con)
 
|-
 
|}
 
 
 
==== Controller State ====
 
 
 
{| class="wikitable" border="1"
 
|-
 
!  Offset
 
!  Size in bytes
 
!  Description
 
|-
 
| 0x0
 
| 0x8
 
| Timestamp
 
|-
 
| 0x8
 
| 0x8
 
| Button State
 
|-
 
| 0xC
 
| 0x4
 
| Left Joystick X
 
|-
 
| 0x10
 
| 0x4
 
| Left Joystick Y
 
|-
 
| 0x14
 
| 0x4
 
| Right Joystick X
 
|-
 
| 0x18
 
| 0x4
 
| Right Joystick Y
 
|-
 
| 0x20
 
| 0x8
 
| Controller State (bit0 connected, bit1 wired)
 
|-
 
|}
 
 
 
===== Button State =====
 
 
 
{| class="wikitable" border="1"
 
|-
 
!  Bit
 
!  Button
 
|-
 
| 0
 
| A
 
|-
 
| 1
 
| B
 
|-
 
| 2
 
| X
 
|-
 
| 3
 
| Y
 
|-
 
| 4
 
| Left Stick Pressed
 
|-
 
| 5
 
| Right Stick Pressed
 
|-
 
| 6
 
| L
 
|-
 
| 7
 
| R
 
|-
 
| 8
 
| ZL
 
|-
 
| 9
 
| ZR
 
|-
 
| 10
 
| Plus
 
|-
 
| 11
 
| Minus
 
|-
 
| 12
 
| Left
 
|-
 
| 13
 
| Up
 
|-
 
| 14
 
| Right
 
|-
 
| 15
 
| Down
 
|-
 
| 16
 
| Left Stick Left
 
|-
 
| 17
 
| Left Stick Up
 
|-
 
| 18
 
| Left Stick Right
 
|-
 
| 19
 
| Left Stick Down
 
|-
 
| 20
 
| Right Stick Left
 
|-
 
| 21
 
| Right Stick Up
 
|-
 
| 22
 
| Right Stick Right
 
|-
 
| 23
 
| Right Stick Down
 
|-
 
|}
 

Latest revision as of 18:21, 22 November 2020

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