Use software serial for Sun.
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@ -45,7 +45,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
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#define MOUSEKEY_TIME_TO_MAX 20
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#endif
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#ifndef MOUSEKEY_WHEEL_MAX_SPEED
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#define MOUSEKEY_WHEEL_MAX_SPEED 16
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#define MOUSEKEY_WHEEL_MAX_SPEED 8
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#endif
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#ifndef MOUSEKEY_WHEEL_TIME_TO_MAX
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#define MOUSEKEY_WHEEL_TIME_TO_MAX 40
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@ -38,12 +38,19 @@ POSSIBILITY OF SUCH DAMAGE.
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#include <stdbool.h>
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <util/delay.h>
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#include "serial.h"
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/*
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* Stupid Inefficient Busy-wait Software Serial
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* is still useful for negative logic signal like Sun protocol not supported by hardware USART.
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*/
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#define WAIT_US (1000000/SERIAL_BAUD)
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void serial_init(void)
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{
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SERIAL_RX_INIT();
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SERIAL_RXD_INIT();
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}
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// RX ring buffer
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@ -64,12 +71,44 @@ uint8_t serial_recv(void)
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return data;
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}
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// USART RX complete interrupt
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ISR(SERIAL_RX_VECT)
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//ISR(INT2_vect)
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ISR(SERIAL_RXD_VECT)
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{
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SERIAL_RXD_INT_ENTER()
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uint8_t data = 0;
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#ifdef SERIAL_BIT_ORDER_MSB
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uint8_t pos = 0x80;
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#else
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uint8_t pos = 0x01;
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#endif
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// to center of start bit
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_delay_us(WAIT_US/2);
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do {
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// to center of next bit
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_delay_us(WAIT_US);
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if (SERIAL_RXD_PIN&(1<<SERIAL_RXD_BIT)) {
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data |= pos;
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}
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#ifdef SERIAL_BIT_ORDER_MSB
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pos >>= 1;
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#else
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pos <<= 1;
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#endif
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} while (pos);
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// to center of stop bit
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_delay_us(WAIT_US);
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#ifdef SERIAL_NEGATIVE_LOGIC
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data = ~data;
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#endif
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uint8_t next = (rbuf_head + 1) % RBUF_SIZE;
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if (next != rbuf_tail) {
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rbuf[rbuf_head] = SERIAL_RX_DATA;
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rbuf[rbuf_head] = data;
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rbuf_head = next;
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}
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SERIAL_RXD_INT_EXIT();
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}
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2
rules.mk
2
rules.mk
@ -252,7 +252,7 @@ EXTMEMOPTS =
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# (.vectors+0x30): relocation truncated to fit: R_AVR_13_PCREL against symbol `__vector_12'
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#
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LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
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LDFLAGS += -Wl,--relax
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#LDFLAGS += -Wl,--relax
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LDFLAGS += -Wl,--gc-sections
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LDFLAGS += $(EXTMEMOPTS)
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LDFLAGS += $(patsubst %,-L%,$(EXTRALIBDIRS))
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