diff options
Diffstat (limited to 'protocol/adb.c')
| -rw-r--r-- | protocol/adb.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/protocol/adb.c b/protocol/adb.c index 750f4b9650..a4783f36e5 100644 --- a/protocol/adb.c +++ b/protocol/adb.c @@ -41,7 +41,6 @@ POSSIBILITY OF SUCH DAMAGE. #include <avr/io.h> #include <avr/interrupt.h> #include "adb.h" -#include "debug.h" // GCC doesn't inline functions normally @@ -125,16 +124,15 @@ bool adb_host_psw(void) uint16_t adb_host_kbd_recv(void) { uint16_t data = 0; + cli(); attention(); send_byte(0x2C); // Addr:Keyboard(0010), Cmd:Talk(11), Register0(00) place_bit0(); // Stopbit(0) if (!wait_data_lo(500)) { // Tlt/Stop to Start(140-260us) + sei(); return 0; // No data to send } - // ad hoc fix: without block inerrupt read wrong bit occasionally and get keys stuck - // TODO: is this needed anymore with improved timing? - //cli(); uint8_t n = 17; // start bit + 16 data bits do { uint8_t lo = (uint8_t) wait_data_hi(130); @@ -153,10 +151,8 @@ uint16_t adb_host_kbd_recv(void) data |= 1; } else if (n == 17) { - // Service Request - dprintf("Startbit ERROR\n"); sei(); - return -2; + return -20; } } while ( --n ); @@ -164,21 +160,20 @@ uint16_t adb_host_kbd_recv(void) // Stop bit can't be checked normally since it could have service request lenghtening // and its high state never goes low. if (!wait_data_hi(351) || wait_data_lo(91)) { - dprintf("Stopbit ERROR\n"); sei(); - return -3; + return -21; } sei(); return data; error: - dprintf("Bit ERROR\n"); sei(); - return -4; + return -n; } void adb_host_listen(uint8_t cmd, uint8_t data_h, uint8_t data_l) { + cli(); attention(); send_byte(cmd); place_bit0(); // Stopbit(0) @@ -187,6 +182,7 @@ void adb_host_listen(uint8_t cmd, uint8_t data_h, uint8_t data_l) send_byte(data_h); send_byte(data_l); place_bit0(); // Stopbit(0); + sei(); } // send state of LEDs |