385 lines
15 KiB
Text
Executable file
385 lines
15 KiB
Text
Executable file
{
|
||
version: 0.1.0
|
||
|
||
uses: {
|
||
keycodes: 0.0.1
|
||
}
|
||
|
||
documentation: {
|
||
order: [
|
||
broadcast_messages
|
||
!broadcast_messages.md.j2
|
||
]
|
||
|
||
reserved_tokens:
|
||
'''
|
||
Two token values are reserved: `0x0000` and `0xFFFF`:
|
||
* `0x0000`: A message sent by a host application may use this token if no response is to be sent -- a "fire and forget" message.
|
||
* `0xFFFF`: Signifies a "broadcast" message sent by the firmware without prompting from the host application. Broadcast messages are defined later in this document.
|
||
|
||
Any request will generate at least one corresponding response, with the exception of messages using reserved tokens. Maximum total message length is 128 bytes due to RAM constraints.
|
||
'''
|
||
|
||
broadcast_messages:
|
||
'''
|
||
## Broadcast messages
|
||
|
||
Broadcast messages may be sent by the firmware to the host, without a corresponding inbound request. Each broadcast message uses the token `0xFFFF`, and does not expect a response from the host. Tokens are followed by an _ID_ signifying the type of broadcast, with corresponding _payload_.
|
||
'''
|
||
}
|
||
|
||
response_flags: {
|
||
bits: {
|
||
1: {
|
||
name: Secure Failure
|
||
define: SECURE_FAILURE
|
||
description:
|
||
'''
|
||
When this bit is set, the requested _route_ was marked _secure_ but an _unlock sequence_ has not completed.
|
||
'''
|
||
}
|
||
6: {
|
||
name: Unlocking
|
||
define: UNLOCK_IN_PROGRESS
|
||
description:
|
||
'''
|
||
When this bit is set, an _unlock sequence_ is in progress.
|
||
'''
|
||
}
|
||
7: {
|
||
name: Unlocked
|
||
define: UNLOCKED
|
||
description:
|
||
'''
|
||
When this bit is set, an _unlock sequence_ has completed, and _secure routes_ may be invoked.
|
||
'''
|
||
}
|
||
}
|
||
}
|
||
|
||
type_docs: {
|
||
u64:
|
||
'''
|
||
An unsigned 64-bit integral, commonly seen as `uint64_t` from _stdint.h_.
|
||
'''
|
||
"struct{}":
|
||
'''
|
||
A structure of data, packing different objects together. Data is "compacted" -- there are no padding bytes between fields. Equivalent to a packed C-style `struct`. The order in which they're defined matches the order of the data in the response packet.
|
||
'''
|
||
}
|
||
|
||
term_definitions: {
|
||
Capability:
|
||
'''
|
||
A way to determine if certain functionality is enabled in the firmware. Any _subsystem_ that provides build-time restriction of functionality must provide a _route_ for a _capabilities query_.
|
||
'''
|
||
"Secure Route":
|
||
'''
|
||
A _route_ which has potentially destructive consequences, necessitating prior approval by the user before executing.
|
||
'''
|
||
"Unlock sequence":
|
||
'''
|
||
A physical sequence initiated by the user to enable execution of _secure routes_.
|
||
'''
|
||
}
|
||
|
||
type_definitions: {
|
||
broadcast_header: {
|
||
name: Broadcast Header
|
||
description: Packet format for broadcast messages.
|
||
type: struct
|
||
struct_length: 4
|
||
struct_members: [
|
||
{
|
||
type: token
|
||
name: token
|
||
},
|
||
{
|
||
type: u8
|
||
name: type
|
||
},
|
||
{
|
||
type: u8
|
||
name: length
|
||
}
|
||
]
|
||
}
|
||
}
|
||
|
||
broadcast_messages: {
|
||
define_prefix: XAP_BROADCAST
|
||
messages: {
|
||
0x00: {
|
||
name: Log message
|
||
define: LOG_MESSAGE
|
||
description:
|
||
'''
|
||
Replicates and replaces the same functionality as if using the standard QMK `CONSOLE_ENABLE = yes` in `rules.mk`. Normal prints within the firmware will manifest as log messages broadcast to the host. `hid_listen` will not be functional with XAP enabled.
|
||
|
||
Log message payloads include a `u8` signifying the length of the text, followed by the `u8[Length]` containing the text itself.
|
||
|
||
**Example Log Broadcast** -- log message "Hello QMK!"
|
||
|
||
| Byte | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
|
||
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|
||
| **Purpose** | Token | Token | Broadcast Type | Length | Payload | Payload | Payload | Payload | Payload | Payload | Payload | Payload | Payload | Payload |
|
||
| **Value** | `0xFF` | `0xFF` | `0x00` | `0x0A`(10) | `0x48`(H) | `0x65`(e) | `0x6C`(l) | `0x6C`(l) | `0x6F`(o) | `0x20`( ) | `0x51`(Q) | `0x4D`(M) | `0x4B`(K) | `0x21`(!) |
|
||
'''
|
||
}
|
||
0x01: {
|
||
name: Secure Status
|
||
define: SECURE_STATUS
|
||
description:
|
||
'''
|
||
Secure status has changed. Payloads include a `u8` matching a 'Secure Status' request.
|
||
|
||
**Example Secure Status Broadcast** -- secure "Unlocking"
|
||
|
||
| Byte | 0 | 1 | 2 | 3 |
|
||
| --- | --- | --- | --- | --- |
|
||
| **Purpose** | Token | Token | Broadcast Type | Secure Status |
|
||
| **Value** | `0xFF` | `0xFF` | `0x01` | `0x01` |
|
||
'''
|
||
return_type: u8
|
||
}
|
||
0x02: {
|
||
name: Keyboard
|
||
define: KB
|
||
description:
|
||
'''
|
||
Reserved for vendor-specific functionality. No messages are defined by XAP.
|
||
'''
|
||
},
|
||
|
||
0x03: {
|
||
name: User
|
||
define: USER
|
||
description:
|
||
'''
|
||
Reserved for user-specific functionality. No messages are defined by XAP.
|
||
'''
|
||
}
|
||
}
|
||
}
|
||
|
||
routes: {
|
||
0x00: {
|
||
routes: {
|
||
0x01: {
|
||
type: command
|
||
name: Capabilities Query
|
||
define: CAPABILITIES_QUERY
|
||
description:
|
||
'''
|
||
XAP subsystem capabilities query. Each bit should be considered as a "usable" route within this subsystem.
|
||
'''
|
||
return_type: u32
|
||
return_purpose: capabilities
|
||
return_constant: XAP_ROUTE_XAP_CAPABILITIES
|
||
}
|
||
0x02: {
|
||
type: command
|
||
name: Enabled subsystem query
|
||
define: SUBSYSTEM_QUERY
|
||
description:
|
||
'''
|
||
XAP protocol subsystem query. Each bit should be considered as a "usable" subsystem. For example, checking `(value & (1 << XAP_ROUTE_QMK) != 0)` means the QMK subsystem is enabled and available for querying.
|
||
'''
|
||
return_type: u32
|
||
return_purpose: capabilities
|
||
return_constant: XAP_ROUTE_CAPABILITIES
|
||
}
|
||
0x03: {
|
||
type: command
|
||
name: Secure Status
|
||
define: SECURE_STATUS
|
||
description:
|
||
'''
|
||
Query secure route status
|
||
|
||
* 0 means secure routes are disabled
|
||
* 1 means unlock sequence initiated but incomplete
|
||
* 2 means secure routes are allowed
|
||
* any other value should be interpreted as disabled
|
||
'''
|
||
permissions: ignore
|
||
return_type: u8
|
||
return_execute: secure_status
|
||
}
|
||
0x04: {
|
||
type: command
|
||
name: Secure Unlock
|
||
define: SECURE_UNLOCK
|
||
description: Initiate secure route unlock sequence
|
||
return_execute: secure_unlock
|
||
}
|
||
0x05: {
|
||
type: command
|
||
name: Secure Lock
|
||
define: SECURE_LOCK
|
||
permissions: ignore
|
||
description: Disable secure routes
|
||
return_execute: secure_lock
|
||
}
|
||
}
|
||
},
|
||
|
||
0x01: {
|
||
type: router
|
||
name: QMK
|
||
define: QMK
|
||
description:
|
||
'''
|
||
This subsystem is always present, and provides the ability to address QMK-specific functionality.
|
||
'''
|
||
routes: {
|
||
0x00: {
|
||
type: command
|
||
name: Version Query
|
||
define: VERSION_QUERY
|
||
description:
|
||
'''
|
||
QMK protocol version query.
|
||
|
||
* Returns the BCD-encoded version in the format of XX.YY.ZZZZ => `0xXXYYZZZZ`
|
||
* e.g. 3.2.115 will match `0x03020115`, or bytes {0x15,0x01,0x02,0x03}.
|
||
'''
|
||
return_type: u32
|
||
return_purpose: bcd-version
|
||
return_constant: QMK_BCD_VERSION
|
||
}
|
||
0x01: {
|
||
type: command
|
||
name: Capabilities Query
|
||
define: CAPABILITIES_QUERY
|
||
description:
|
||
'''
|
||
QMK subsystem capabilities query. Each bit should be considered as a "usable" route within this subsystem.
|
||
'''
|
||
return_type: u32
|
||
return_purpose: capabilities
|
||
return_constant: XAP_ROUTE_QMK_CAPABILITIES
|
||
}
|
||
0x02: {
|
||
type: command
|
||
name: Board identifiers
|
||
define: BOARD_IDENTIFIERS
|
||
description:
|
||
'''
|
||
Retrieves the set of identifying information for the board.
|
||
'''
|
||
return_type: struct
|
||
return_struct_length: 10
|
||
return_struct_members: [
|
||
{
|
||
type: u16
|
||
name: Vendor ID
|
||
},
|
||
{
|
||
type: u16
|
||
name: Product ID
|
||
},
|
||
{
|
||
type: u16
|
||
name: Product Version
|
||
},
|
||
{
|
||
type: u32
|
||
name: QMK Unique Identifier
|
||
}
|
||
]
|
||
return_constant: [
|
||
VENDOR_ID
|
||
PRODUCT_ID
|
||
DEVICE_VER
|
||
XAP_KEYBOARD_IDENTIFIER
|
||
]
|
||
}
|
||
0x03: {
|
||
type: command
|
||
name: Board Manufacturer
|
||
define: BOARD_MANUFACTURER
|
||
description: Retrieves the name of the manufacturer
|
||
return_type: string
|
||
return_constant: QSTR(MANUFACTURER)
|
||
}
|
||
0x04: {
|
||
type: command
|
||
name: Product Name
|
||
define: PRODUCT_NAME
|
||
description: Retrieves the product name
|
||
return_type: string
|
||
return_constant: QSTR(PRODUCT)
|
||
}
|
||
0x05: {
|
||
type: command
|
||
name: Config Blob Length
|
||
define: CONFIG_BLOB_LEN
|
||
description: Retrieves the length of the configuration data bundled within the firmware
|
||
return_type: u32
|
||
return_constant: CONFIG_BLOB_GZ_LEN
|
||
}
|
||
0x06: {
|
||
type: command
|
||
name: Config Blob Chunk
|
||
define: CONFIG_BLOB_CHUNK
|
||
description: Retrieves a chunk of the configuration data bundled within the firmware
|
||
request_type: u16
|
||
request_purpose: offset
|
||
return_type: u8[32]
|
||
return_execute: get_config_blob_chunk
|
||
}
|
||
0x07: {
|
||
type: command
|
||
name: Jump to bootloader
|
||
define: BOOTLOADER_JUMP
|
||
permissions: secure
|
||
enable_if_preprocessor: defined(BOOTLOADER_JUMP_SUPPORTED)
|
||
description:
|
||
'''
|
||
Jump to bootloader
|
||
|
||
May not be present – if QMK capabilities query returns “true”, then jump to bootloader is supported
|
||
|
||
* 0 means secure routes are disabled, and should be considered as a failure
|
||
* 1 means successful, board will jump to bootloader
|
||
'''
|
||
return_type: u8
|
||
return_execute: request_bootloader_jump
|
||
}
|
||
0x08: {
|
||
type: command
|
||
name: Hardware Identifier
|
||
define: HARDWARE_ID
|
||
description: Retrieves a unique identifier for the board.
|
||
return_type: u32[4]
|
||
return_execute: get_hardware_id
|
||
}
|
||
}
|
||
},
|
||
|
||
0x02: {
|
||
type: router
|
||
name: Keyboard
|
||
define: KB
|
||
description:
|
||
'''
|
||
This subsystem is always present, and reserved for vendor-specific functionality. No routes are defined by XAP.
|
||
'''
|
||
routes: {
|
||
}
|
||
},
|
||
|
||
0x03: {
|
||
type: router
|
||
name: User
|
||
define: USER
|
||
description:
|
||
'''
|
||
This subsystem is always present, and reserved for user-specific functionality. No routes are defined by XAP.
|
||
'''
|
||
routes: {
|
||
}
|
||
}
|
||
}
|
||
}
|