diff options
Diffstat (limited to 'src/machine/usb/descriptor/hid.go')
| -rw-r--r-- | src/machine/usb/descriptor/hid.go | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/src/machine/usb/descriptor/hid.go b/src/machine/usb/descriptor/hid.go new file mode 100644 index 000000000..266d10065 --- /dev/null +++ b/src/machine/usb/descriptor/hid.go @@ -0,0 +1,189 @@ +package descriptor + +import ( + "bytes" + "encoding/binary" +) + +var configurationCDCHID = [configurationTypeLen]byte{ + configurationTypeLen, + TypeConfiguration, + 0x64, 0x00, // adjust length as needed + 0x03, // number of interfaces + 0x01, // configuration value + 0x00, // index to string description + 0xa0, // attributes + 0x32, // maxpower +} + +var ConfigurationCDCHID = ConfigurationType{ + data: configurationCDCHID[:], +} + +var interfaceHID = [interfaceTypeLen]byte{ + interfaceTypeLen, + TypeInterface, + 0x02, // InterfaceNumber + 0x00, // AlternateSetting + 0x01, // NumEndpoints + 0x03, // InterfaceClass + 0x00, // InterfaceSubClass + 0x00, // InterfaceProtocol + 0x00, // Interface +} + +var InterfaceHID = InterfaceType{ + data: interfaceHID[:], +} + +const ( + ClassHIDTypeLen = 9 +) + +type ClassHIDType struct { + data []byte +} + +func (d ClassHIDType) Bytes() []byte { + return d.data[:] +} + +func (d ClassHIDType) Length(v uint8) { + d.data[0] = byte(v) +} + +func (d ClassHIDType) Type(v uint8) { + d.data[1] = byte(v) +} + +func (d ClassHIDType) HID(v uint16) { + binary.LittleEndian.PutUint16(d.data[2:4], v) +} + +func (d ClassHIDType) CountryCode(v uint8) { + d.data[4] = byte(v) +} + +func (d ClassHIDType) NumDescriptors(v uint8) { + d.data[5] = byte(v) +} + +func (d ClassHIDType) ClassType(v uint8) { + d.data[6] = byte(v) +} + +func (d ClassHIDType) ClassLength(v uint16) { + binary.LittleEndian.PutUint16(d.data[7:9], v) +} + +func FindClassHIDType(data, section []byte) ClassHIDType { + idx := bytes.Index(data, section) + + return ClassHIDType{data: data[idx : idx+ClassHIDTypeLen]} +} + +var classHID = [ClassHIDTypeLen]byte{ + ClassHIDTypeLen, + TypeClassHID, + 0x11, // HID version L + 0x01, // HID version H + 0x00, // CountryCode + 0x01, // NumDescriptors + 0x22, // ClassType + 0x7E, // ClassLength L + 0x00, // ClassLength H +} + +var ClassHID = ClassHIDType{ + data: classHID[:], +} + +var CDCHID = Descriptor{ + Device: DeviceCDC.Bytes(), + Configuration: appendSlices([][]byte{ + ConfigurationCDCHID.Bytes(), + InterfaceAssociationCDC.Bytes(), + InterfaceCDCControl.Bytes(), + ClassSpecificCDCHeader.Bytes(), + ClassSpecificCDCACM.Bytes(), + ClassSpecificCDCUnion.Bytes(), + ClassSpecificCDCCallManagement.Bytes(), + EndpointEP1IN.Bytes(), + InterfaceCDCData.Bytes(), + EndpointEP2OUT.Bytes(), + EndpointEP3IN.Bytes(), + InterfaceHID.Bytes(), + ClassHID.Bytes(), + EndpointEP4IN.Bytes(), + }), + HID: map[uint16][]byte{ + 2: []byte{ + 0x05, 0x01, // Usage Page (Generic Desktop) + 0x09, 0x06, // Usage (Keyboard) + 0xa1, 0x01, // Collection (Application) + 0x85, 0x02, // Report ID (2) + 0x05, 0x07, // Usage Page (KeyCodes) + 0x19, 0xe0, // Usage Minimum (224) + 0x29, 0xe7, // Usage Maximum (231) + 0x15, 0x00, // Logical Minimum (0) + 0x25, 0x01, // Logical Maximum (1) + 0x75, 0x01, // Report Size (1) + 0x95, 0x08, // Report Count (8) + 0x81, 0x02, // Input (Data, Variable, Absolute), Modifier byte + 0x95, 0x01, // Report Count (1) + 0x75, 0x08, // Report Size (8) + 0x81, 0x03, // + 0x95, 0x06, // Report Count (6) + 0x75, 0x08, // Report Size (8) + 0x15, 0x00, // Logical Minimum (0), + 0x25, 0xFF, // + 0x05, 0x07, // Usage Page (KeyCodes) + 0x19, 0x00, // Usage Minimum (0) + 0x29, 0xFF, // Usage Maximum (255) + 0x81, 0x00, // Input (Data, Array), Key arrays (6 bytes) + 0xc0, // End Collection + + 0x05, 0x01, // Usage Page (Generic Desktop) + 0x09, 0x02, // Usage (Mouse) + 0xa1, 0x01, // Collection (Application) + 0x09, 0x01, // Usage (Pointer) + 0xa1, 0x00, // Collection (Physical) + 0x85, 0x01, // Report ID (1) + 0x05, 0x09, // Usage Page (Buttons) + 0x19, 0x01, // Usage Minimum (01) + 0x29, 0x03, // Usage Maximun (03) + 0x15, 0x00, // Logical Minimum (0) + 0x25, 0x01, // Logical Maximum (1) + 0x95, 0x03, // Report Count (3) + 0x75, 0x01, // Report Size (1) + 0x81, 0x02, // Input (Data, Variable, Absolute), ;3 button bits + 0x95, 0x01, // Report Count (1) + 0x75, 0x05, // Report Size (5) + 0x81, 0x03, // + 0x05, 0x01, // Usage Page (Generic Desktop) + 0x09, 0x30, // Usage (X) + 0x09, 0x31, // Usage (Y) + 0x09, 0x38, // + 0x15, 0x81, // Logical Minimum (-127) + 0x25, 0x7f, // Logical Maximum (127) + 0x75, 0x08, // Report Size (8) + 0x95, 0x03, // Report Count (3) + 0x81, 0x06, // Input (Data, Variable, Relative), 2 position bytes (X & Y) + 0xc0, // End Collection + 0xc0, // End Collection + + 0x05, 0x0C, // Usage Page (Consumer) + 0x09, 0x01, // Usage (Consumer Control) + 0xA1, 0x01, // Collection (Application) + 0x85, 0x03, // Report ID (3) + 0x15, 0x00, // Logical Minimum (0) + 0x26, 0xFF, 0x1F, // Logical Maximum (8191) + 0x19, 0x00, // Usage Minimum (Unassigned) + 0x2A, 0xFF, 0x1F, // Usage Maximum (0x1FFF) + 0x75, 0x10, // Report Size (16) + 0x95, 0x01, // Report Count (1) + 0x81, 0x00, // Input (Data,Array,Abs,No Wrap,Linear,Preferred State,No Null Position) + 0xC0, // End Collection + }, + }, +} |