Talk:DualShock 4

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Eleccelerator

Hi, this is Frank, Eleccelerator is my website. I noticed the little message you've sent me (please use email next time, I don't check my own wiki edits, but I can't find your email either lol so I'm a hypocrite right now). Feel free to copy whatever information you want, I want the information to be public. Including a link to my website would be nice though.

Source: http://eleccelerator.com/wiki/index.php?title=DualShock_4 (full paste 17:50 UTC, 18 January 2014 )

I’ve been decoding the USB reports independently and appear to have got further along, when I’m happy that most of the packet is described, I’ll integrate my findings, still a few nibbles unaccounted for though… https://gist.github.com/johndrinkwater/7708901 -- Johndrinkwater (talk) 05:22, 3 December 2013 (EST)

Review:

It feels really good to hold.

Hardware

Teardown photo album: http://imgur.com/a/ytRW5

The USB port and LED are on one separate board, connected using a flat flexible cable, this cable is connected to a vertical FFC connector that does not have a locking mechanism.

The touchpad sensor is also detachable, connected using a flat flexible cable, this cable is connected to the main PCB using a connector that has a flip-up locking mechanism.

The speaker is not removable and it connects to the main PCB using some raised contacts.

The battery is 3.65V 1000mAH Li-ion.

Main microcontroller is a Spansion MB9BF002, a ARM Cortex M3 core, BGA package. The reset and SWD signals might be exposed to test points, I am not sure.

The Bluetooth module shows "8LA18366" and "GS-WCM-01" (or maybe it's "GS-WCN-01") and "VR2.0". There is also a QR code that I can't decipher yet. There are a lot of test points near it. Underneath, it is confirmed to be a Qualcomm Atheros AR3002.

There's a chip marked with "BD9200" (in QFN 32 pin footprint) that might be a PMIC because it has some thick traces around it, plus a big inductor. One of the pins near it read 6V, might be for the motor.

There's a shiny small square chip left of the left analog stick, it is marked with "7710" "325A1", I have no idea what this is, but there's some differential signals coming out of it, it might be USB, the activity stops when I disconnect the USB cable. I think this is connected to the USB port. I suspect this is a OTG chip.

There's a rectangular (maybe LGA) chip on the bottom side on the left, marked with "134" "A1322" "333", possibly a sensor. It's got some sort of latch signal around it, or maybe it's a weird clock. It's slow and doesn't seem like a bus. Or it could be a shift register and it's reading blank because I'm not pressing buttons.

There's a QFN 32 pin chip marked with "WM18016" (the M could be a N, the 6 could be a G) "36A0LM6" dead center on the bottom side of the PCB. It has a sine wave logo on it (possibly Wolfson Microelectronics). It is near the audio stuff but it is also near where all the buttons connect. There are 5 test points near it. It appears to be communicating with SPI with constant activity. There's also two resistors that look like I2C pull-up resistors, and there appears to be constant I2C traffic.

Some buttons are active low, some are active high (maybe only the thumbstick push buttons). The sheet of flexible circuit for the buttons are active low.

I'll keep adding to this section

Flexible Film Pin Mapping

The buttons are all on a single sheet of flexible film. The contacts for the flexible film are numbered from 1 to 18, and the numbers are written on the PCB.

The triggers have a resistor printed directly on the film, this appears to form a Voltage divider voltage divider, so that the trigger can have an analog value. The ground side of the voltage divider appears to be oscillating, the frequency and duty cycle are not fixed or predictable.

Pin # Purpose Notes
1 L2 Common oscillating between 0 and 3.3V
2 L1 Sig active High
3 L1 Common fixed at 3.3V
4 L2 Sig voltage divider output, active low
5 DPAD Right active low
6 DPAD Up active low
7 DPAD Left active low
8 DPAD Down active low
9 Common ground
10 PS Button active low
11 X active low
12 Circle active low
13 Triangle active low
14 Square active low
15 R2 Common oscillating between 0 and 3.3V
16 R1 Sig active high
17 R1 Common fixed at 3.3V
18 R2 Sig voltage divider output, active low

USB

Audio definitely does not carry through USB.

The reports arrive once every 4ms.

Device Descriptor

Device Descriptor
Offset Field Size Value Description
0 bLength 1 0x12 Size of this descriptor in bytes (18)
1 bDescriptorType 1 0x01 DEVICE descriptor type (Constant = 1)
2 bcdUSB 2 0x0200 USB Spec release number (2.00):

with which the device and is descriptors are compliant (e.g.: 0x0200 (USB2.0), 0x0300, (USB3.0))

4 bDeviceClass 1 0x00 Class code assigned by USB-IF:

(used by the operating system to find a class driver for your device)

  • 00h means each interface defines its own class (identify itself at the interface level: bInterfaceClass)
  • FFh means vendor-defined class
  • Any other value must be a class code

5 bDeviceSubClass 1 0x00 SubClass Code assigned by USB-IF

(used by the operating system to find a class driver for your device)

6 bDeviceProtocol 1 0x00 Protocol Code assigned by USB-IF

(used by the operating system to find a class driver for your device)

7 bMaxPacketSize0 1 0x40 Max packet size for endpoint 0. (64)

8 idVendor 2 0x054C Vendor ID (VID) (Sony Corp.)

must be obtained from USB-IF

(used by the operating system to find a driver for your device)

10 idProduct 2 0x05C4 Product ID (PID) - (Sony Computer Entertainment Wireless Controller)

assigned by the manufacturer

(used by the operating system to find a driver for your device)

12 bcdDevice 2 0x0100 Device release number (Version: 1.00)

in binary coded decimal

14 iManufacturer 1 0x01 Index of string descriptor describing manufacturer

set to 0 if no string

15 iProduct 1 0x02 Index of string descriptor describing product

set to 0 if no string

16 iSerialNumber 1 0x00 Index of string descriptor describing device serial number
set to 0 if no string
17 bNumConfigurations 1 0x01 Number of possible configurations

Configuration Descriptor

Configuration Descriptor
Offset Field Size Value Description
0 bLength 1 0x09 Size
1 bDescriptorType 1 0x02 (= 2)
2 wTotalLength 2 0x0029 Total number of bytes (41) in this descriptor and all the following descriptors (9+9+9+7+7)
4 bNumInterfaces 1 0x01 Number of interfaces supported by this configuration
5 bConfigurationValue 1 0x01 Value used by Set Configuration to select this configuration
6 iConfiguration 1 0x00 Index of string descriptor describing configuration - set to 0 if no string
7 bmAttributes 1 0xC0 Self Powered & powered by the bus (11000000) (PS3 controller: 0x80)

specify power parameters for the configuration :

8-digit bit binary
… 7|6|5|4|3|2|1|0 …

  • D0 - D4: Reserved.
  • D5: The configuration supports remote wakeup.
  • D6: The configuration is self-powered and does not use power from the bus.
  • D7: The configuration is powered by the bus.

8 bMaxPower 1 0xFA Maximum current: 500mA drawn by device in this configuration.
In units of 2mA. So 0x32 (50) means 100 mA
Interface Descriptor
0 bLength 1 0x09 Size
1 bDescriptorType 1 0x04 (= 4)
2 bInterfaceNumber 1 0x00 Number identifying this interface.

Zero-based value

3 bAlternateSetting 1 0x00 The first (and default) value used to select alternative setting is always 0

(An interface can have more than one variant, and these variants can be switched between, while other interfaces are still in operation)

4 bNumEndpoints 1 0x02 Number of Endpoints used for this interface
5 bInterfaceClass 1 0x03 Class code assigned by USB-IF]

  • 00h is a reserved value
  • FFh means vendor-defined class
  • Any other value must be a class code

6 bInterfaceSubClass 1 0x00 SubClass Code assigned by USB-IF
7 bInterfaceProtocol 1 0x00 Protocol Code assigned by USB-IF
8 iInterface 1 0x00 Index of string descriptor describing interface - set to 0 if no string
Human Interface Device (HID) Descriptor
0 bLength 1 0x09 Size
1 bDescriptorType 1 0x21 Constant name specifying type of HID descriptor
2 bcdHID 1.17 2 0x0111 HID class spec version (1.11)
4 bCountryCode 1 0x00 Not supported (Device Class Definition for HID 1.11 6.2.1 p33)
5 bNumDescriptors 1 0x01 Number of Descriptors
6 bDescriptorType 1 0x22 DescriptorType (34): REPORT
7 DescriptorLength 2 0x01D3 total size of the Report descriptor (467)
Endpoint (IN) Descriptor
0 bLength 1 0x07 Size
1 bDescriptorType 1 0x05 (= 5)
2 bEndpointAddress 1 0x84 IN/D2H (10000100)-->4 (PS3 Controller: 0x81)

The address of this endpoint within the device:

  • D3-D0: Endpoint number
  • D6-D4: Reserved. set to Zero
  • D7: Direction: 0 = OUT, 1 = IN (Ignored for Control Endpoints)

3 bmAttributes 1 0x03 Interrupt (00000011)

(D1:0) Transfer Type:

  • 00 = Control
  • 01 = Isochronous
  • 10 = Bulk
  • 11 = Interrupt

The following only apply to isochronous endpoints. Else set to 0.

(D3:2) Synchronisation Type (ISO mode):

  • 00 = No Synchronisation
  • 01 = Asynchronous
  • 10 = Adaptive
  • 11 = Synchronous

(D5:4) Usage Type (ISO mode):

  • 00 = Data endpoint
  • 01 = Feedback endpoint
  • 10 = Implicit feedback Data endpoint
  • 11 = Reserved

(D7:6) Reserved Set to 0

4 wMaxPacketSize 2 0x0040 (64)
6 bInterval 1 0x05 5 (unit depends on device speed) (PS3 Controller: 1)

Interval for polling endpoint for data transfers. Expressed in frames (ms) for low/full speed or microframes (125µs) for high speed
(ignored for Bulk & Control Endpoints. Isochronous must equal 1 and field may range from 1 to 255 for interrupt endpoints)

Endpoint (OUT) Descriptor
0 bLength 1 0x07 Size
1 bDescriptorType 1 0x05 (= 5)
2 bEndpointAddress 1 0x03 OUT/H2D (00000011)-->3 (PS3 Controller: 0x02)
3 bmAttributes 1 0x03 Interrupt
4 wMaxPacketSize 2 0x0040 (64)
6 bInterval 1 0x05 5

HID Report Descriptor

HID Usage Tables 1.12 (p.26)

Value Items Remarks
0x05 0x01 - Usage Page (Generic Desktop Controls)
0x09 0x05 - Usage (Game Pad) CA – A manual control or cursor device. A game pad minimally consists of a thumb-activated rocker switch that controls two axes (X and Y) and has four buttons. The rocker switch consists of four contact closures for up, down, right, and left.
0xA1 0x01 - Collection (Physical)
0x85 0x01 - Report ID (1)
0x09 0x30 - Usage (X) DV – A linear translation in the X direction. Report values should increase as the control’s position is moved from left to right.
0x09 0x31 - Usage (Y) DV – A linear translation in the Y direction. Report values should increase as the control’s position is moved from far to near.
0x09 0x32 - Usage (Z) DV – A linear translation in the Z direction. Report values should increase as the control’s position is moved from high to low (Z).
0x09 0x35 - Usage (Rz) DV – A rotation about the Z axis. Angular position report values follow the righthand rule.
0x15 0x00 - Logical Minimum (0)
0x26 0xFF 0x00 Logical Maximum (255)
0x75 0x08 - Report Size (8)
0x95 0x04 - Report Count (4)
0x81 0x02 - Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09 0x39 - Usage (Hat switch) DV – A specialized mechanical configuration of switches generating a variable value with a null state. The switches are arranged around a springloaded knob. When the knob is tilted in the direction of a switch, its contacts are closed. A typical example is four switches that are capable of generating information about four possible directions in which the knob can be tilted. Intermediate positions can also be decoded if the hardware allows two switches to be reported simultaneously.
0x15 0x00 - Logical Minimum (0)
0x25 0x07 - Logical Maximum (7)
0x35 0x00 - Physical Minimum (0)
0x46 0x3B 0x01 Physical Maximum (315)
0x65 0x14 - Unit (System: English Rotation, Length: Centimeter)
0x75 0x04 - Report Size (4)
0x95 0x01 - Report Count (1)
0x81 0x42 - Input (Data,Var,Abs,No Wrap,Linear,Preferred State,Null State)
0x65 0x00 - Unit (None)
0x05 0x09 - Usage Page (Button)
0x19 0x01 - Usage Minimum (0x01)
0x29 0x0E - Usage Maximum (0x0E)
0x15 0x00 - Logical Minimum (0)
0x25 0x01 - Logical Maximum (1)
0x75 0x01 - Report Size (1)
0x95 0x0E - Report Count (14)
0x81 0x02 - Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x06 0x00 0xFF Usage Page (Vendor Defined 0xFF00)
0x09 0x20 - Usage (0x20)
0x75 0x06 - Report Size (6)
0x95 0x01 - Report Count (1)
0x15 0x00 - Logical Minimum (0)
0x25 0x7F - Logical Maximum (127)
0x81 0x02 - Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05 0x01 - Usage Page (Generic Desktop Ctrls)
0x09 0x33 - Usage (Rx) DV – A rotation about the X axis. Angular position report values follow the righthand rule.
0x09 0x34 - Usage (Ry) DV – A rotation about the Z axis. Angular position report values follow the righthand rule.
0x15 0x00 - Logical Minimum (0)
0x26 0xFF 0x00 Logical Maximum (255)
0x75 0x08 - Report Size (8)
0x95 0x02 - Report Count (2)
0x81 0x02 - Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x06 0x00 0xFF Usage Page (Vendor Defined 0xFF00)
0x09 0x21 - Usage (0x21)
0x95 0x36 - Report Count (54)
0x81 0x02 - Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x85 0x05 - Report ID (5)
0x09 0x22 - Usage (0x22)
0x95 0x1F - Report Count (31)
0x91 0x02 - Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x04 - Report ID (4)
0x09 0x23 - Usage (0x23)
0x95 0x24 - Report Count (36)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x02 - Report ID (2)
0x09 0x24 - Usage (0x24)
0x95 0x24 - Report Count (36)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x08 - Report ID (8)
0x09 0x25 - Usage (0x25)
0x95 0x03 - Report Count (3)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x10 - Report ID (16)
0x09 0x26 - Usage (0x26)
0x95 0x04 - Report Count (4)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x11 - Report ID (17)
0x09 0x27 - Usage (0x27)
0x95 0x02 - Report Count (2)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x12 - Report ID (18)
0x06 0x02 0xFF Usage Page (Vendor Defined 0xFF02)
0x09 0x21 - Usage (0x21)
0x95 0x0F - Report Count (15)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x13 - Report ID (19)
0x09 0x22 - Usage (0x22)
0x95 0x16 - Report Count (22)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x14 - Report ID (20)
0x06 0x05 0xFF Usage Page (Vendor Defined 0xFF05)
0x09 0x20 - Usage (0x20)
0x95 0x10 - Report Count (16)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x15 - Report ID (21)
0x09 0x21 - Usage (0x21)
0x95 0x2C - Report Count (44)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x06 0x80 0xFF Usage Page (Vendor Defined 0xFF80)
0x85 0x80 - Report ID (128)
0x09 0x20 - Usage (0x20)
0x95 0x06 - Report Count (6)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x81 - Report ID (129)
0x09 0x21 - Usage (0x21)
0x95 0x06 - Report Count (6)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x82 - Report ID (130)
0x09 0x22 - Usage (0x22)
0x95 0x05 - Report Count (5)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x83 - Report ID (131)
0x09 0x23 - Usage (0x23)
0x95 0x01 - Report Count (1)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x84 - Report ID (132)
0x09 0x24 - Usage (0x24)
0x95 0x04 - Report Count (4)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x85 - Report ID (133)
0x09 0x25 - Usage (0x25)
0x95 0x06 - Report Count (6)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x86 - Report ID (134)
0x09 0x26 - Usage (0x26)
0x95 0x06 - Report Count (6)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x87 - Report ID (135)
0x09 0x27 - Usage (0x27)
0x95 0x23 - Report Count (35)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x88 - Report ID (136)
0x09 0x28 - Usage (0x28)
0x95 0x22 - Report Count (34)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x89 - Report ID (137)
0x09 0x29 - Usage (0x29)
0x95 0x02 - Report Count (2)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x90 - Report ID (144)
0x09 0x30 - Usage (X) DV – A linear translation in the X direction. Report values should increase as the control’s position is moved from left to right.
0x95 0x05 - Report Count (5)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x91 - Report ID (145)
0x09 0x31 - Usage (Y) DV – A linear translation in the Y direction. Report values should increase as the control’s position is moved from far to near.
0x95 0x03 - Report Count (3)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x92 - Report ID (146)
0x09 0x32 - Usage (Z) DV – A linear translation in the Z direction. Report values should increase as the control’s position is moved from high to low (Z).
0x95 0x03 - Report Count (3)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0x93 - Report ID (147)
0x09 0x33 - Usage (Rx) DV – A rotation about the X axis. Angular position report values follow the righthand rule.
0x95 0x0C - Report Count (12)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xA0 - Report ID (160)
0x09 0x40 - Usage (Vx) DV – A vector in the X direction. Report values should increase as the vector increases in the positive X direction (from left to right). Negative values represent vectors in the negative X direction.
0x95 0x06 - Report Count (6)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xA1 - Report ID (161)
0x09 0x41 - Usage (Vy) DV – A vector in the Y direction. Report values should increase as the vector increases in the positive Y direction (from far to near). Negative values represent vectors in the negative Y direction.
0x95 0x01 - Report Count (1)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xA2 - Report ID (162)
0x09 0x42 - Usage (Vz) DV – A vector in the Z direction. Report values should increase as the vector increases in the positive Z direction (from high to low). Negative values represent vectors in the negative Z direction.
0x95 0x01 - Report Count (1)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xA3 - Report ID (163)
0x09 0x43 - Usage (Vbrx) DV – A vector in the X direction relative to the body of an object. Report values should increase as the vector increases in the positive X direction (forward). Negative values represent vectors in the negative X direction. X is the “forward” axis for an object.
0x95 0x30 - Report Count (48)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xA4 - Report ID (164)
0x09 0x44 - Usage (Vbry) DV – A vector in the Y direction relative to the body of an object. Report values should increase as the vector increases in the positive Y direction (to the right from an observer facing forward on the object). Negative values represent vectors in the negative Y direction.
0x95 0x0D - Report Count (13)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xA5 - Report ID (165)
0x09 0x45 - Usage (Vbrz) DV – A vector in the Z direction relative to the body of an object. Report values should increase as the vector increases in the positive Z direction (down from an observer facing forward on the object). Negative values represent vectors in the negative Z direction.
0x95 0x15 - Report Count (21)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xA6 - Report ID (166)
0x09 0x46 - Usage (Vno) DV– A non oriented vector or value. The units define a physical measurement not related to a specific axis or orientation. An example would be pressure or temperature.
0x95 0x15 - Report Count (21)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xF0 - Report ID (240)
0x09 0x47 - Usage (Feature Notification)
0x95 0x3F - Report Count (63)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xF1 - Report ID (241)
0x09 0x48 - Usage (Resolution Multiplier)
0x95 0x3F - Report Count (63)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xF2 - Report ID (242)
0x09 0x49 - Usage (0x49)
0x95 0x0F - Report Count (15)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xA7 - Report ID (167)
0x09 0x4A - Usage (0x4A)
0x95 0x01 - Report Count (1)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xA8 - Report ID (168)
0x09 0x4B - Usage (0x4B)
0x95 0x01 - Report Count (1)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xA9 - Report ID (169)
0x09 0x4C - Usage (0x4C)
0x95 0x08 - Report Count (8)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xAA - Report ID (170)
0x09 0x4E - Usage (0x4E)
0x95 0x01 - Report Count (1)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xAB - Report ID (171)
0x09 0x4F - Usage (0x4F)
0x95 0x39 - Report Count (57)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xAC - Report ID (172)
0x09 0x50 - Usage (0x50)
0x95 0x39 - Report Count (57)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xAD - Report ID (173)
0x09 0x51 - Usage (0x51)
0x95 0x0B - Report Count (11)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xAE - Report ID (174)
0x09 0x52 - Usage (0x52)
0x95 0x01 - Report Count (1)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xAF - Report ID (175)
0x09 0x53 - Usage (0x53)
0x95 0x02 - Report Count (2)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85 0xB0 - Report ID (176)
0x09 0x54 - Usage (0x54)
0x95 0x3F - Report Count (63)
0xB1 0x02 - Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0xC0 - - End Collection


Sample Report

01 81 80 83 7A 08 00 00 00 00 93 5F FB D2 FF DA
FF D8 FF 4F EE 14 1B 99 FE 00 00 00 00 00 05 00
00 00 00 80 00 00 00 80 00 00 00 00 80 00 00 00
80 00 00 00 00 80 00 00 00 80 00 00 00 00 80 00

Report Structure

Data Format
byte index bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
[0] Report ID (always 0x01)
[1] Left Stick X (0 = left)
[2] Left Stick Y (0 = up)
[3] Right Stick X
[4] Right Stick Y
[5] TRI CIR X SQR D-PAD (hat format, 0x08 is released, 0=N, 1=NE, 2=E, 3=SE, 4=S, 5=SW, 6=W, 7=NW)
[6] R3 L3 OPT SHARE R2 L2 R1 L1
[7] Counter (counts up by 1 per report) T-PAD PS
[8] Left Trigger (0 = released, 0xFF = fully pressed)
[9] Right Trigger
[10] Unknown, seems to count downwards, non-random pattern
[11] Unknown, seems to count upwards by 3, but by 2 when [10] underflows
[12] Unknown yet, 0x03 or 0x04
[13 - 14] Possibly Gyro X (seems to be signed)
[15 - 16] Possibly Gyro Y
[17 - 18] Possibly Gyro Z
[19 - 20] Possibly Accel X
[21 - 22] Possibly Accel Y
[23 - 24] Possibly Accel Z
[25 - 63] TODO, work in progress

Class Requests

This is what happened with a controller that was not previously synced to the PS4 

Set Address
Get Device Descriptor:    (Short Device Descriptor)
Get Device Descriptor:    (Full Device Descriptor)
Get String Descriptor[idx=0, langID=0]:      04 03
Get String Descriptor[idx=0, langID=0]:      04 03 09 04
Get String Descriptor[idx=1, langID=0x0409]: 38 03
Get String Descriptor[idx=1, langID=0x0409]: "Sony Computer Entertainment"
Get String Descriptor[idx=2, langID=0x0409]: 
Get String Descriptor[idx=3, langID=0x0409]: "Wireless Controller"
Get Configuration Descriptor: (Short Configuration Descriptor)
Get Configuration Descriptor: (Full Configuration Descriptor)
Get Device Status: 00 00
Set Configuration to 0x01
Get Descriptor:  (HID Report Descriptor)
Set Idle to 0
Get Report 0xA3: A3 41 75 67 20 20 33 20 32 30 31 33 00 00 00 00 00 30 37 3A 30 31 3A 31 32 00 00 00 00 00 00 00 00 00 01 00 31 03 00 00 00 49 00 05 00 00 80 03 00
Get Report 0x02: 02 01 00 00 00 00 00 87 22 7B DD B2 22 47 DD BD 22 43 DD 1C 02 1C 02 7F 1E 2E DF 60 1F 4C E0 3A 1D C6 DE 08 00
Get Report 0xA3: A3 41 75 67 20 20 33 20 32 30 31 33 00 00 00 00 00 30 37 3A 30 31 3A 31 32 00 00 00 00 00 00 00 00 00 01 00 31 03 00 00 00 49 00 05 00 00 80 03 00
Get Report 0x12: 12 8B 09 07 6D 66 1C 08 25 00 00 00 00 00 00 00
Set Report 0x14: 13 AC 9E 17 94 05 B0 56 E8 81 38 08 06 51 41 C0 7F 12 AA D9 66 3C CE
Set Report 0x12: 14 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

The same controller is then disconnected, and this is what happened when it reconnected 

... enumeration steps same as before
Get Report 0xA3: A3 41 75 67 20 20 33 20 32 30 31 33 00 00 00 00 00 30 37 3A 30 31 3A 31 32 00 00 00 00 00 00 00 00 00 01 00 31 03 00 00 00 49 00 05 00 00 80 03 00
Get Report 0x02: 02 01 00 00 00 00 00 87 22 7B DD B2 22 47 DD BD 22 43 DD 1C 02 1C 02 7F 1E 2E DF 60 1F 4C E0 3A 1D C6 DE 08 00
Get Report 0xA3: A3 41 75 67 20 20 33 20 32 30 31 33 00 00 00 00 00 30 37 3A 30 31 3A 31 32 00 00 00 00 00 00 00 00 00 01 00 31 03 00 00 00 49 00 05 00 00 80 03 00
Get Report 0x12: 12 8B 09 07 6D 66 1C 08 25 00 AC 9E 17 94 05 B0

report ID 0xA3 seems to be some sort of time-of-manufacture identifier, it contains a date and time as a string in the beginning, ".Aug 3 2013.....07:01:12...........1....I....."

AC 9E 17 94 05 B0 is PS4 (Host) Bluetooth MAC Address (in proper MAC format, it is B0:05:94:17:9E:AC), AC 9E 17 is the LAP and 0x94 is the UAP, 05 B0 is the NAP, this was verified using a Bluetooth sniffer.

The 16 bytes that follow immediately after the BD_ADDR is the link key that is used to authenticate the DualShock 4. When a Bluetooth connection is established, this link key is used for authentication.

I am guessing that 8B 09 07 6D 66 1C means something, it's different on a different controller, it seems to be the Bluetooth MAC Address of the DualShock 4. in proper MAC format it is 1C:66:6D:07:09:8B in this example.

Bluetooth

The DS4 has two modes, one where you can pair it with a computer (hold PS and share at the same time until the light blinks twice in quick succession rapidly), and another mode when it is used with a PS4.

In the PS4 mode, it appears to advertise as two devices, one is a game controller and the other is an audio device. The game controller has a class 0x002508, and the audio device is class 0x200404. Neither has a name.

Only controllers that have previously paired with the PS4 can cause it to wake up. If you spoof a previously paired DS4's BDADDR and class, then using "sudo hcitool cc <ps4's bdaddr>" will wake up the PS4. If the same cc request comes from an unknown BDADDR, nothing happens.

UART HCI

On the DS4 circuit itself is a Qualcomm Atheros AR3002 module and the UART pins have test points. You can clearly see the UART HCI data when you analyze the traffic on the RX and TX pins. See File:Ds4_testpoints_hci_uart_1.jpg

The data seems to be at a baud rate of exactly 3Mbit/s , sticking with HCI standards, meaning it's 8N1.

The report rate seems to be once every 1.3 millisecond, but there are some occasional gaps in between that can reach 15 milliseconds.

File:Ds4 uart hci cap with unpaired better.pcap, this file is a capture of the traffic over the UART HCI, Wireshark is required to view this PCAP file.

ds4_uart_hci_cap_playroom_needs_sorting.pcap.gz, similar to the file before, but uses data while running "the Playroom" app on the PS4, so that it shows motors, speaker, and LED activity. This file needs to be decompressed using gzip first, then opened with Wireshark. Once opened, it needs to be sorted by timestamp.

HID Report

Here's a sample HCI transaction that represents a report from the DS4 to the PS4

02 15 20 53 00 4F 00 42 00 A1 11 C0 00 83 81 7E 7E 08 00 3C 00 00 83 A2 07 F1 FF F9 FF 04 00 21 03 17 1F 29 F9 00 00 00 00 00 08 00 00 00 00 80 00 00 00 80 00 00 00 00 80 00 00 00 80 00 00 00 00 80 00 00 00 80 00 00 00 00 80 00 00 00 80 00 00 00 00 00 7D 0A 5D 0B

The header is

02 15 20 53 00 4F 00 42 00

Which means this is a Bluetooth HCI ACL packet, connection handle is 0x15, CID is 0x0042, and the length of the HID portion is 79 long.

The 79 byte HID portion is

A1 11 C0 00 83 81 7E 7E 08 00 3C 00 00 83 A2 07 F1 FF F9 FF 04 00 21 03 17 1F 29 F9 00 00 00 00 00 08 00 00 00 00 80 00 00 00 80 00 00 00 00 80 00 00 00 80 00 00 00 00 80 00 00 00 80 00 00 00 00 80 00 00 00 80 00 00 00 00 00 7D 0A 5D 0B

If you look carefully, it is very similar to the reports sent over USB if you ignore A1 11 C0.

CRC32

Notice the last 4 bytes, 7D 0A 5D 0B, this value is different for every report packet, it appears to be random but it is actually a CRC32 over the first 75 bytes of the HID report. The CRC32's polynomial is 0x4C11DB7.

You can use http://www.lammertbies.nl/comm/info/crc-calculation.html to try this yourself, enter into the textbox (hex):

A1 11 C0 00 83 81 7E 7E 08 00 3C 00 00 83 A2 07 F1 FF F9 FF 04 00 21 03 17 1F 29 F9 00 00 00 00 00 08 00 00 00 00 80 00 00 00 80 00 00 00 00 80 00 00 00 80 00 00 00 00 80 00 00 00 80 00 00 00 00 80 00 00 00 80 00 00 00 00 00

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