diff options
| author | tmk <nobody@nowhere> | 2012-12-12 09:45:00 +0900 |
|---|---|---|
| committer | tmk <nobody@nowhere> | 2012-12-12 09:49:59 +0900 |
| commit | cf1eb8fbc6789776d3b3457dd5cf4ed84815e8b3 (patch) | |
| tree | dc2ec05a2b19e60a0550b44085142fd548b5a54f /protocol/adb.c | |
| parent | 72dc413a19562b6a67509d4fd6a1cb9c07227d3d (diff) | |
| download | qmk_firmware-cf1eb8fbc6789776d3b3457dd5cf4ed84815e8b3.tar.gz qmk_firmware-cf1eb8fbc6789776d3b3457dd5cf4ed84815e8b3.zip | |
Add ADB extended keyboard support by blargg@GH.
This offers distinction between left/right modifiers.
Diffstat (limited to 'protocol/adb.c')
| -rw-r--r-- | protocol/adb.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/protocol/adb.c b/protocol/adb.c index d7105b3a9a..9f52f6ce77 100644 --- a/protocol/adb.c +++ b/protocol/adb.c @@ -67,6 +67,12 @@ void adb_host_init(void) #ifdef ADB_PSW_BIT psw_hi(); #endif + + // Enable keyboard left/right modifier distinction + // Addr:Keyboard(0010), Cmd:Listen(10), Register3(11) + // upper byte: reserved bits 0000, device address 0010 + // lower byte: device handler 00000011 + adb_host_listen(0x2B,0x02,0x03); } #ifdef ADB_PSW_BIT @@ -98,19 +104,27 @@ uint16_t adb_host_kbd_recv(void) return data; } -// send state of LEDs -void adb_host_kbd_led(uint8_t led) +void adb_host_listen(uint8_t cmd, uint8_t data_h, uint8_t data_l) { attention(); - send_byte(0x2A); // Addr:Keyboard(0010), Cmd:Listen(10), Register2(10) + send_byte(cmd); place_bit0(); // Stopbit(0) _delay_us(200); // Tlt/Stop to Start place_bit1(); // Startbit(1) - send_byte(0); // send upper byte (not used) - send_byte(led&0x07); // send lower byte (bit2: ScrollLock, bit1: CapsLock, bit0: NumLock) + send_byte(data_h); + send_byte(data_l); place_bit0(); // Stopbit(0); } +// send state of LEDs +void adb_host_kbd_led(uint8_t led) +{ + // Addr:Keyboard(0010), Cmd:Listen(10), Register2(10) + // send upper byte (not used) + // send lower byte (bit2: ScrollLock, bit1: CapsLock, bit0: + adb_host_listen(0x2A,0,led&0x07); +} + static inline void data_lo() { |