diff options
Diffstat (limited to 'adb.c')
| -rw-r--r-- | adb.c | 19 |
1 files changed, 16 insertions, 3 deletions
@@ -42,9 +42,9 @@ uint16_t adb_host_kbd_recv(void) { uint16_t data = 0; attention(); - send_byte(0x2C); // Addr:2, Cmd:talk(11), Reg:0(00) - place_bit0(); // Stopbit - if (!wait_data_lo(0xFF)) // Stop to Start(140-260us) + send_byte(0x2C); // Addr:Keyboard(0010), Cmd:Talk(11), Register0(00) + place_bit0(); // Stopbit(0) + if (!wait_data_lo(0xFF)) // Tlt/Stop to Start(140-260us) return 0; // No data to send if (!read_bit()) // Startbit(1) return -2; @@ -55,6 +55,19 @@ uint16_t adb_host_kbd_recv(void) return data; } +// send state of LEDs +void adb_host_kbd_led(uint8_t led) +{ + attention(); + send_byte(0x2A); // Addr:Keyboard(0010), Cmd:Listen(10), Register2(10) + 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) + place_bit0(); // Stopbit(0); +} + static inline void data_lo() { |