- #define KDBG_MASK_IRQ(old) do {/*nop*/} while(0)
- #define KDBG_RESTORE_IRQ() do {/*nop*/} while(0)
-#elif CPU_I196
- #include "Util196.h"
- #define KDBG_WAIT_READY() do {} while (!(SP_STAT & (SPSF_TX_EMPTY | SPSF_TX_INT)))
- #define KDBG_WRITE_CHAR(c) do { SBUF = (c); } while(0)
- #define KDBG_MASK_IRQ(old) \
- do { \
- (old) = INT_MASK1 & INT1F_TI; \
- INT_MASK1 &= ~INT1F_TI; \
- } while(0)
- #define KDBG_RESTORE_IRQ(old) do { INT_MASK1 |= (old); }
-#elif CPU_AVR
- #include <avr/io.h>
- #if CONFIG_KDEBUG_PORT == 0
-
- /* External 485 transceiver on UART0 (to be overridden in "hw.h"). */
- #if !defined(SER_UART0_485_INIT)
- #if defined(SER_UART0_485_RX) || defined(SER_UART0_485_TX)
- #error SER_UART0_485_INIT, SER_UART0_485_RX and SER_UART0_485_TX must be defined together
- #endif
- #define SER_UART0_485_INIT do {} while (0)
- #define SER_UART0_485_TX do {} while (0)
- #define SER_UART0_485_RX do {} while (0)
- #elif !defined(SER_UART0_485_RX) || !defined(SER_UART0_485_TX)
- #error SER_UART0_485_INIT, SER_UART0_485_RX and SER_UART0_485_TX must be defined together
- #endif
-
- #if defined(__AVR_ATmega64__)
- #define UCR UCSR0B
- #define UDR UDR0
- #define USR UCSR0A
- #elif defined(__AVR_ATmega8__)
- #define UCR UCSRB
- #define USR UCSRA
- #endif
-
- #define KDBG_WAIT_READY() do { loop_until_bit_is_set(USR, UDRE); } while(0)
- #define KDBG_WAIT_TXDONE() do { loop_until_bit_is_set(USR, TXC); } while(0)
- /*
- * BUG: before sending a new character the TXC flag is cleared to allow
- * KDBG_WAIT_TXDONE() to work properly, but, if KDBG_WRITE_CHAR() is called
- * after the RXC flag is set by hardware, a new TXC could be generated
- * after we clear it and before the new character is put in UDR. In this
- * case if a 485 is used the transceiver will be put in RX mode while
- * transmitting the last char.
- */
- #define KDBG_WRITE_CHAR(c) do { USR |= BV(TXC); UDR = (c); } while(0)
-
- #define KDBG_MASK_IRQ(old) do { \
- SER_UART0_485_TX; \
- (old) = UCR; \
- UCR |= BV(TXEN); \
- UCR &= ~(BV(TXCIE) | BV(UDRIE)); \
- } while(0)
-
- #define KDBG_RESTORE_IRQ(old) do { \
- KDBG_WAIT_TXDONE(); \
- SER_UART0_485_RX; \
- UCR = (old); \
- } while(0)
-
- #elif CONFIG_KDEBUG_PORT == 1
-
- /* External 485 transceiver on UART1 (to be overridden in "hw.h"). */
- #ifndef SER_UART1_485_INIT
- #if defined(SER_UART1_485_RX) || defined(SER_UART1_485_TX)
- #error SER_UART1_485_INIT, SER_UART1_485_RX and SER_UART1_485_TX must be defined together
- #endif
- #define SER_UART1_485_INIT do {} while (0)
- #define SER_UART1_485_TX do {} while (0)
- #define SER_UART1_485_RX do {} while (0)
- #elif !defined(SER_UART1_485_RX) || !defined(SER_UART1_485_TX)
- #error SER_UART1_485_INIT, SER_UART1_485_RX and SER_UART1_485_TX must be defined together
- #endif
-
- #define KDBG_WAIT_READY() do { loop_until_bit_is_set(UCSR1A, UDRE); } while(0)
- #define KDBG_WAIT_TXDONE() do { loop_until_bit_is_set(UCSR1A, TXC); } while(0)
- #define KDBG_WRITE_CHAR(c) do { UCSR1A |= BV(TXC); UDR1 = (c); } while(0)
-
- #define KDBG_MASK_IRQ(old) do { \
- SER_UART1_485_TX; \
- (old) = UCSR1B; \
- UCSR1B |= BV(TXEN); \
- UCSR1B &= ~(BV(TXCIE) | BV(UDRIE)); \
- } while(0)
-
- #define KDBG_RESTORE_IRQ(old) do { \
- KDBG_WAIT_TXDONE(); \
- SER_UART1_485_RX; \
- UCSR1B = (old); \
- } while(0)