diff options
Diffstat (limited to 'hid/src/proto.h')
-rw-r--r-- | hid/src/proto.h | 75 |
1 files changed, 55 insertions, 20 deletions
diff --git a/hid/src/proto.h b/hid/src/proto.h index ca9b4f2c..456ba073 100644 --- a/hid/src/proto.h +++ b/hid/src/proto.h @@ -25,7 +25,6 @@ namespace PROTO { const uint8_t MAGIC = 0x33; - const uint16_t CRC_POLINOM = 0xA001; namespace RESP { // Plain responses // const uint8_t OK = 0x20; // Legacy @@ -36,27 +35,50 @@ namespace PROTO { }; namespace PONG { // Complex response - const uint8_t PREFIX = 0x80; + const uint8_t OK = 0x80; const uint8_t CAPS = 0b00000001; const uint8_t SCROLL = 0b00000010; const uint8_t NUM = 0b00000100; const uint8_t KEYBOARD_OFFLINE = 0b00001000; const uint8_t MOUSE_OFFLINE = 0b00010000; + const uint8_t RESET_REQUIRED = 0b01000000; }; + namespace OUTPUTS { // Complex request/responce flags + const uint8_t DYNAMIC = 0b10000000; + namespace KEYBOARD { + const uint8_t MASK = 0b00000111; + const uint8_t USB = 0b00000001; + const uint8_t PS2 = 0b00000011; + }; + namespace MOUSE { + const uint8_t MASK = 0b00111000; + const uint8_t USB_ABS = 0b00001000; + const uint8_t USB_REL = 0b00010000; + const uint8_t PS2 = 0b00011000; + }; + }; + + namespace FEATURES { + const uint8_t HAS_USB = 0b00000001; + const uint8_t HAS_PS2 = 0b00000010; + } + namespace CMD { const uint8_t PING = 0x01; const uint8_t REPEAT = 0x02; - const uint8_t RESET_HID = 0x10; + const uint8_t SET_OUTPUTS = 0x03; + const uint8_t CLEAR_HID = 0x10; namespace KEYBOARD { const uint8_t KEY = 0x11; }; namespace MOUSE { - const uint8_t MOVE = 0x12; - const uint8_t BUTTON = 0x13; - const uint8_t WHEEL = 0x14; + const uint8_t MOVE = 0x12; + const uint8_t BUTTON = 0x13; + const uint8_t WHEEL = 0x14; + const uint8_t RELATIVE = 0x15; namespace LEFT { const uint8_t SELECT = 0b10000000; const uint8_t STATE = 0b00001000; @@ -79,22 +101,35 @@ namespace PROTO { }; }; }; -}; + uint16_t crc16(const uint8_t *buffer, unsigned length) { + const uint16_t polinom = 0xA001; + uint16_t crc = 0xFFFF; -uint16_t protoCrc16(const uint8_t *buffer, unsigned length) { - uint16_t crc = 0xFFFF; - - for (unsigned byte_count = 0; byte_count < length; ++byte_count) { - crc = crc ^ buffer[byte_count]; - for (unsigned bit_count = 0; bit_count < 8; ++bit_count) { - if ((crc & 0x0001) == 0) { - crc = crc >> 1; - } else { - crc = crc >> 1; - crc = crc ^ PROTO::CRC_POLINOM; + for (unsigned byte_count = 0; byte_count < length; ++byte_count) { + crc = crc ^ buffer[byte_count]; + for (unsigned bit_count = 0; bit_count < 8; ++bit_count) { + if ((crc & 0x0001) == 0) { + crc = crc >> 1; + } else { + crc = crc >> 1; + crc = crc ^ polinom; + } } } + return crc; + } + + inline int merge8_int(uint8_t from_a, uint8_t from_b) { + return (((int)from_a << 8) | (int)from_b); + } + + inline uint16_t merge8(uint8_t from_a, uint8_t from_b) { + return (((uint16_t)from_a << 8) | (uint16_t)from_b); + } + + inline void split16(uint16_t from, uint8_t *to_a, uint8_t *to_b) { + *to_a = (uint8_t)(from >> 8); + *to_b = (uint8_t)(from & 0xFF); } - return crc; -} +}; |