Difference between revisions of "HID Shared Memory"

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(Created page with "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 availa...")
 
(Fix header formatting)
 
(One intermediate revision by the same user not shown)
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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.
 
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.
  
−
====== Memory Map ======
+
= Memory Map =
  
 
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
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| 0x3800
 
| 0x3800
 
| 0x400
 
| 0x400
−
| Unknown, header and 17 entries
+
| Keyboard
 
|-
 
|-
 
| 0x3C00
 
| 0x3C00
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|}
 
|}
  
−
===== Capacitive Touchscreen =====
+
== Capacitive Touchscreen ==
  
 
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
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|}
 
|}
  
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==== Touch Header ====
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=== Touch Header ===
  
 
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
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|}
 
|}
  
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==== Touch Entry ====
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=== Touch Entry ===
  
 
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
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|}
 
|}
  
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=== Touch Structure Header ===
+
==== Touch Structure Header ====
 
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
 
|-
 
|-
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|}
 
|}
  
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=== Touch Data Entry ===
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==== Touch Data Entry ====
 
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
 
|-
 
|-
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|}
 
|}
  
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===== Mouse =====
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== Mouse ==
  
 
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
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|}
 
|}
  
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==== Mouse Header ====
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=== Mouse Header ===
  
 
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
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|}
 
|}
  
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==== Mouse Entry ====
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=== Mouse Entry ===
  
 
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
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|}
 
|}
  
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===== Controller Serials? =====
+
 
 +
== 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.
 
This section contains a series of 16 structures 0x400 bytes large.
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|}
 
|}
  
−
===== Controllers =====
+
== Controllers ==
  
 
This section contains a series of 10 0x5000 byte structures describing each available controller.
 
This section contains a series of 10 0x5000 byte structures describing each available controller.
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|}
 
|}
  
−
==== Controller ====
+
=== Controller ===
  
 
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
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|}
 
|}
  
−
=== Controller Header ===
+
==== Controller Header ====
  
 
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|}
 
|}
  
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=== Controller State ===
+
==== Controller State ====
  
 
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{| class="wikitable" border="1"
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|}
 
|}
  
−
== Button State ==
+
===== Button State =====
  
 
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"

Latest revision as of 13:14, 10 June 2017

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.

Memory Map

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

Offset Size in bytes Description
0x0 0x28 Touch Header
0x28 0x290 * 17 Touch Entries

Touch Header

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

Offset Size in bytes Description
0x0 0x10 Touch Entry Header
0x10 0x28 * 16 Touch Data

Touch Structure Header

Offset Size in bytes Description
0x0 0x8 Timestamp
0x8 0x8 Number of Touches

Touch Data Entry

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

Offset Size in bytes Description
0x0 0x20 Mouse Header
0x20 0x30 * 17 Mouse Entries

Mouse Header

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

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

Offset Size in bytes Description
0x0 0x20 Keyboard Header
0x20 0x30 * 17 Keyboard Entries

Keyboard Header

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

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.

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.

Controller Index Description
0 to 7 Players 1 to 8
8 Handheld Mode
9 Unknown

Controller

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

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

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
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
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