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-rw-r--r--keyboards/pierce/config.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/keyboards/pierce/config.h b/keyboards/pierce/config.h
index 82c4b4b264..3b89c38603 100644
--- a/keyboards/pierce/config.h
+++ b/keyboards/pierce/config.h
@@ -23,3 +23,40 @@
/* COL2ROW or ROW2COL */
#define DIODE_DIRECTION COL2ROW
+
+#ifdef PS2_DRIVER_USART
+#define PS2_CLOCK_PIN D5
+#define PS2_DATA_PIN D2
+
+/* synchronous, odd parity, 1-bit stop, 8-bit data, sample at falling edge */
+/* set DDR of CLOCK as input to be slave */
+#define PS2_USART_INIT() do { \
+ PS2_CLOCK_DDR &= ~(1<<PS2_CLOCK_BIT); \
+ PS2_DATA_DDR &= ~(1<<PS2_DATA_BIT); \
+ UCSR1C = ((1 << UMSEL10) | \
+ (3 << UPM10) | \
+ (0 << USBS1) | \
+ (3 << UCSZ10) | \
+ (0 << UCPOL1)); \
+ UCSR1A = 0; \
+ UBRR1H = 0; \
+ UBRR1L = 0; \
+} while (0)
+#define PS2_USART_RX_INT_ON() do { \
+ UCSR1B = ((1 << RXCIE1) | \
+ (1 << RXEN1)); \
+} while (0)
+#define PS2_USART_RX_POLL_ON() do { \
+ UCSR1B = (1 << RXEN1); \
+} while (0)
+#define PS2_USART_OFF() do { \
+ UCSR1C = 0; \
+ UCSR1B &= ~((1 << RXEN1) | \
+ (1 << TXEN1)); \
+} while (0)
+#define PS2_USART_RX_READY (UCSR1A & (1<<RXC1))
+#define PS2_USART_RX_DATA UDR1
+#define PS2_USART_ERROR (UCSR1A & ((1<<FE1) | (1<<DOR1) | (1<<UPE1)))
+#define PS2_USART_RX_VECT USART1_RX_vect
+#define PS2_MOUSE_ROTATE 270 /* Compensate for East-facing device orientation. */
+#endif