Allow partial redefinition of BUS macros.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@186 38d2e660-2303-0410-9eaa-f027e97ec537

diff --git a/drv/kdebug.c b/drv/kdebug.c
index 471e6f4ea41d52841dd897e51059d7a0aadb4fbb..cabd8b7a8a9f3cd0d8a7cffe67f3cd77d4ffc160 100755 (executable)
--- a/drv/kdebug.c
+++ b/drv/kdebug.c
@@ -16,6 +16,9 @@
 
 /*#*
  *#* $Log$
+ *#* Revision 1.14  2004/09/06 21:39:56  bernie
+ *#* Allow partial redefinition of BUS macros.
+ *#*
  *#* Revision 1.13  2004/08/29 22:04:26  bernie
  *#* Convert 485 macros to generic BUS macros;
  *#* kputchar(): New public function.
@@ -93,15 +96,14 @@
                 * Support for special bus policies or external transceivers
                 * on UART0 (to be overridden in "hw.h").
                 */
-               #if !defined(KDBG_UART0_BUS_INIT)
-                       #if defined(KDBG_UART0_BUS_RX) || defined(KDBG_UART0_BUS_TX)
-                               #error KDBG_UART0_BUS_INIT, KDBG_UART0_BUS_RX and KDBG_UART0_BUS_TX must be defined together
-                       #endif
-                       #define KDBG_UART0_BUS_INIT  do {} while (0)
-                       #define KDBG_UART0_BUS_TX    do {} while (0)
-                       #define KDBG_UART0_BUS_RX    do {} while (0)
-               #elif !defined(KDBG_UART0_BUS_RX) || !defined(KDBG_UART0_BUS_TX)
-                       #error KDBG_UART0_BUS_INIT, KDBG_UART0_BUS_RX and KDBG_UART0_BUS_TX must be defined together
+               #ifndef KDBG_UART0_BUS_INIT
+               #define KDBG_UART0_BUS_INIT  do {} while (0)
+               #endif
+               #ifndef KDBG_UART0_BUS_RX
+               #define KDBG_UART0_BUS_RX    do {} while (0)
+               #endif
+               #ifndef KDBG_UART0_BUS_TX
+               #define KDBG_UART0_BUS_TX    do {} while (0)
                #endif
 
                #if defined(__AVR_ATmega64__)
@@ -115,6 +117,7 @@
 
                #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)
+
                /*
                 * We must clear the TXC flag before sending a new character to allow
                 * KDBG_WAIT_TXDONE() to work properly.
@@ -127,10 +130,10 @@
                #define KDBG_WRITE_CHAR(c)    do { USR |= BV(TXC); UDR = (c); } while(0)
 
                #define KDBG_MASK_IRQ(old)    do { \
-                       KDBG_UART0_BUS_TX; \
                        (old) = UCR; \
                        UCR |= BV(TXEN); \
                        UCR &= ~(BV(TXCIE) | BV(UDRIE)); \
+                       KDBG_UART0_BUS_TX; \
                } while(0)
 
                #define KDBG_RESTORE_IRQ(old) do { \
@@ -148,14 +151,13 @@
                 * on UART1 (to be overridden in "hw.h").
                 */
                #ifndef KDBG_UART1_BUS_INIT
-                       #if defined(KDBG_UART1_BUS_RX) || defined(KDBG_UART1_BUS_TX)
-                               #error KDBG_UART1_BUS_INIT, KDBG_UART1_BUS_RX and KDBG_UART1_BUS_TX must be defined together
-                       #endif
-                       #define KDBG_UART1_BUS_INIT  do {} while (0)
-                       #define KDBG_UART1_BUS_TX    do {} while (0)
-                       #define KDBG_UART1_BUS_RX    do {} while (0)
-               #elif !defined(KDBG_UART1_BUS_RX) || !defined(KDBG_UART1_BUS_TX)
-                       #error KDBG_UART1_BUS_INIT, KDBG_UART1_BUS_RX and KDBG_UART1_BUS_TX must be defined together
+               #define KDBG_UART1_BUS_INIT  do {} while (0)
+               #endif
+               #ifndef KDBG_UART1_BUS_RX
+               #define KDBG_UART1_BUS_RX    do {} while (0)
+               #endif
+               #ifndef KDBG_UART1_BUS_TX
+               #define KDBG_UART1_BUS_TX    do {} while (0)
                #endif
 
                #define KDBG_WAIT_READY()     do { loop_until_bit_is_set(UCSR1A, UDRE); } while(0)
@@ -163,10 +165,10 @@
                #define KDBG_WRITE_CHAR(c)    do { UCSR1A |= BV(TXC); UDR1 = (c); } while(0)
 
                #define KDBG_MASK_IRQ(old)    do { \
-                       KDBG_UART1_BUS_TX; \
                        (old) = UCSR1B; \
                        UCSR1B |= BV(TXEN); \
                        UCSR1B &= ~(BV(TXCIE) | BV(UDRIE)); \
+                       KDBG_UART1_BUS_TX; \
                } while(0)
 
                #define KDBG_RESTORE_IRQ(old) do { \