X-Git-Url: https://git.friedersdorff.com/?a=blobdiff_plain;ds=sidebyside;f=converter%2Fsun_usb%2Fconfig.h;h=414fd56399dc17706cd8f943c3716e405cdf71e3;hb=9f041460313bc16e3f8a9677faced4d38d343d9a;hp=cfd39cd513a68fcb44789f5399b384764882538d;hpb=d9fee5571d7de08e76dff5ce75816faf522240f6;p=max%2Ftmk_keyboard.git

diff --git a/converter/sun_usb/config.h b/converter/sun_usb/config.h
index cfd39cd5..414fd563 100644
--- a/converter/sun_usb/config.h
+++ b/converter/sun_usb/config.h
@@ -39,51 +39,88 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 /* legacy keymap support */
 #define USE_LEGACY_KEYMAP
 
-
-/* Serial(USART) configuration
- *     asynchronous, negative logic, 1200baud, no flow control
- *     1-start bit, 8-data bit, non parity, 1-stop bit
+/* HARDWARE_SERAIL assumes that a logic inverter (7404) is placed
+ * in front of RX/TX to produce the positive logic the MCU expects.
+ * The default is Software Serial.
  */
-#define SERIAL_SOFT_BAUD            1200
-#define SERIAL_SOFT_PARITY_NONE
-#define SERIAL_SOFT_BIT_ORDER_LSB
-#define SERIAL_SOFT_LOGIC_NEGATIVE
-/* RXD Port */
-#define SERIAL_SOFT_RXD_ENABLE
-#define SERIAL_SOFT_RXD_DDR         DDRD
-#define SERIAL_SOFT_RXD_PORT        PORTD
-#define SERIAL_SOFT_RXD_PIN         PIND
-#define SERIAL_SOFT_RXD_BIT         2
-#define SERIAL_SOFT_RXD_VECT        INT2_vect
-/* RXD Interupt */
-#define SERIAL_SOFT_RXD_INIT()      do { \
-    /* pin configuration: input with pull-up */ \
-    SERIAL_SOFT_RXD_DDR &= ~(1<<SERIAL_SOFT_RXD_BIT); \
-    SERIAL_SOFT_RXD_PORT |= (1<<SERIAL_SOFT_RXD_BIT); \
-    /* enable interrupt: INT2(rising edge) */ \
-    EICRA |= ((1<<ISC21)|(1<<ISC20)); \
-    EIMSK |= (1<<INT2); \
-    sei(); \
-} while (0)
-#define SERIAL_SOFT_RXD_INT_ENTER()
-#define SERIAL_SOFT_RXD_INT_EXIT()  do { \
-    /* clear interrupt  flag */ \
-    EIFR = (1<<INTF2); \
-} while (0)
-#define SERIAL_SOFT_RXD_READ()      (SERIAL_SOFT_RXD_PIN&(1<<SERIAL_SOFT_RXD_BIT))
-/* TXD Port */
-#define SERIAL_SOFT_TXD_ENABLE
-#define SERIAL_SOFT_TXD_DDR         DDRD
-#define SERIAL_SOFT_TXD_PORT        PORTD
-#define SERIAL_SOFT_TXD_PIN         PIND
-#define SERIAL_SOFT_TXD_BIT         3
-#define SERIAL_SOFT_TXD_HI()        do { SERIAL_SOFT_TXD_PORT |=  (1<<SERIAL_SOFT_TXD_BIT); } while (0)
-#define SERIAL_SOFT_TXD_LO()        do { SERIAL_SOFT_TXD_PORT &= ~(1<<SERIAL_SOFT_TXD_BIT); } while (0)
-#define SERIAL_SOFT_TXD_INIT()      do { \
-    /* pin configuration: output */ \
-    SERIAL_SOFT_TXD_DDR |= (1<<SERIAL_SOFT_TXD_BIT); \
-    /* idle */ \
-    SERIAL_SOFT_TXD_ON(); \
-} while (0)
+#if defined(HARDWARE_SERIAL)
+
+    /* Hardware Serial (USART) configuration
+     *     asynchronous, negative logic, 1200baud, no flow control
+     *     1-start bit, 8-data bit, non parity, 1-stop bit
+     *
+     */
+    #if defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega32U2__)
+    #define SERIAL_UART_BAUD       1200
+    #define SERIAL_UART_DATA       UDR1
+    #define SERIAL_UART_UBRR       ((F_CPU/(16UL*SERIAL_UART_BAUD))-1)
+    #define SERIAL_UART_RXD_VECT   USART1_RX_vect
+    #define SERIAL_UART_TXD_READY  (UCSR1A&(1<<UDRE1))
+    #define SERIAL_UART_INIT()     do { \
+        UBRR1L = (uint8_t) SERIAL_UART_UBRR;       /* baud rate */ \
+        UBRR1H = (uint8_t) (SERIAL_UART_UBRR>>8);  /* baud rate */ \
+        UCSR1B = (1<<RXCIE1) | (1<<RXEN1) | /* RX: interrupt, RX: enable */ \
+                 (1<<TXEN1);                /* TX: enable */ \
+        UCSR1C = (0<<UPM11) | (0<<UPM10) | /* parity: none(00), even(01), odd(11) */ \
+                 (0<<UCSZ12) | (1<<UCSZ11) | (1<<UCSZ10); /* data-8bit(011) */ \
+        sei(); \
+    } while(0)
+    #else
+    #   error "USART configuration is needed."
+    #endif
+
+#else
+    /* Software Serial configuration
+     *     asynchronous, negative logic, 1200baud, no flow control
+     *     1-start bit, 8-data bit, non parity, 1-stop bit
+     */
+    #define SERIAL_SOFT_BAUD            1200
+    #define SERIAL_SOFT_PARITY_NONE
+    #define SERIAL_SOFT_BIT_ORDER_LSB
+    #define SERIAL_SOFT_LOGIC_NEGATIVE
+    /* RXD Port */
+    #define SERIAL_SOFT_RXD_ENABLE
+    #define SERIAL_SOFT_RXD_DDR         DDRD
+    #define SERIAL_SOFT_RXD_PORT        PORTD
+    #define SERIAL_SOFT_RXD_PIN         PIND
+    #define SERIAL_SOFT_RXD_BIT         2
+    #define SERIAL_SOFT_RXD_VECT        INT2_vect
+    /* RXD Interupt */
+    #ifdef SERIAL_SOFT_LOGIC_NEGATIVE
+    /* enable interrupt: INT2(rising edge) */
+    #define INTR_TRIG_EDGE   ((1<<ISC21)|(1<<ISC20))
+    #else
+    /* enable interrupt: INT2(falling edge) */
+    #define INTR_TRIG_EDGE   ((1<<ISC21)|(0<<ISC20))
+    #endif
+    #define SERIAL_SOFT_RXD_INIT()      do { \
+        /* pin configuration: input with pull-up */ \
+        SERIAL_SOFT_RXD_DDR &= ~(1<<SERIAL_SOFT_RXD_BIT); \
+        SERIAL_SOFT_RXD_PORT |= (1<<SERIAL_SOFT_RXD_BIT); \
+        EICRA |= INTR_TRIG_EDGE; \
+        EIMSK |= (1<<INT2); \
+        sei(); \
+    } while (0)
+    #define SERIAL_SOFT_RXD_INT_ENTER()
+    #define SERIAL_SOFT_RXD_INT_EXIT()  do { \
+        /* clear interrupt  flag */ \
+        EIFR = (1<<INTF2); \
+    } while (0)
+    #define SERIAL_SOFT_RXD_READ()      (SERIAL_SOFT_RXD_PIN&(1<<SERIAL_SOFT_RXD_BIT))
+    /* TXD Port */
+    #define SERIAL_SOFT_TXD_ENABLE
+    #define SERIAL_SOFT_TXD_DDR         DDRD
+    #define SERIAL_SOFT_TXD_PORT        PORTD
+    #define SERIAL_SOFT_TXD_PIN         PIND
+    #define SERIAL_SOFT_TXD_BIT         3
+    #define SERIAL_SOFT_TXD_HI()        do { SERIAL_SOFT_TXD_PORT |=  (1<<SERIAL_SOFT_TXD_BIT); } while (0)
+    #define SERIAL_SOFT_TXD_LO()        do { SERIAL_SOFT_TXD_PORT &= ~(1<<SERIAL_SOFT_TXD_BIT); } while (0)
+    #define SERIAL_SOFT_TXD_INIT()      do { \
+        /* pin configuration: output */ \
+        SERIAL_SOFT_TXD_DDR |= (1<<SERIAL_SOFT_TXD_BIT); \
+        /* idle */ \
+        SERIAL_SOFT_TXD_ON(); \
+    } while (0)
 
-#endif
+#endif //hardware serial
+#endif //config.h