* the GNU General Public License.
*
* Copyright 2003, 2004, 2005, 2006, 2007 Develer S.r.l. (http://www.develer.com/)
- * Copyright 2000, 2001, 2002 Bernardo Innocenti <bernie@codewiz.org>
+ * Copyright 2000, 2001, 2002 Bernie Innocenti <bernie@codewiz.org>
*
* -->
*
* \brief AVR debug support (implementation).
*
- * \version $Id$
- * \author Bernardo Innocenti <bernie@develer.com>
+ * \author Bernie Innocenti <bernie@codewiz.org>
* \author Stefano Fedrigo <aleph@develer.com>
* \author Francesco Sacchi <batt@develer.com>
*/
-#include "hw_cpu.h" /* for CLOCK_FREQ */
-#include "hw_ser.h" /* Required for bus macros overrides */
+#include <hw/hw_cpufreq.h> /* for CPU_FREQ */
+#include "hw/hw_ser.h" /* Required for bus macros overrides */
-#include <appconfig.h>
+#include "cfg/cfg_debug.h"
#include <cfg/macros.h> /* for BV(), DIV_ROUND */
#include <cpu/types.h>
/*
* Support for special bus policies or external transceivers
- * on UART0 (to be overridden in "hw_ser.h").
+ * on UART0 (to be overridden in "hw/hw_ser.h").
*
* HACK: if we don't set TXEN, kdbg disables the transmitter
* after each output statement until the serial driver
*/
#ifndef KDBG_UART0_BUS_INIT
#define KDBG_UART0_BUS_INIT do { \
- UCSR0B = BV(TXEN0); \
+ UCR = BV(TXEN0); \
} while (0)
#endif
#ifndef KDBG_UART0_BUS_RX
#define KDBG_UART0_BUS_TX do {} while (0)
#endif
- #if CPU_AVR_ATMEGA64 || CPU_AVR_ATMEGA128 || CPU_AVR_ATMEGA168
+ #if CPU_AVR_ATMEGA64 || CPU_AVR_ATMEGA128 || CPU_AVR_ATMEGA1281 || CPU_AVR_ATMEGA1280 \
+ || CPU_AVR_ATMEGA168 || CPU_AVR_ATMEGA328P
#define UCR UCSR0B
#define UDR UDR0
#define USR UCSR0A
- #elif CPU_AVR_ATMEGA8
- #define UCR UCSRB
- #define USR UCSRA
+ #elif CPU_AVR_ATMEGA8 || CPU_AVR_ATMEGA32
+ #define UCR UCSRB
+ #define USR UCSRA
+ #define TXEN0 TXEN
+ #define UDRE0 UDRE
+ #define TXC0 TXC
+ #define TXCIE0 TXCIE
+ #define UDRIE0 UDRIE
#else
#error Unknown CPU
#endif
#elif CONFIG_KDEBUG_PORT == 1
/*
- * Support for special bus policies or external transceivers
- * on UART1 (to be overridden in "hw_ser.h").
- *
- * HACK: if we don't set TXEN, kdbg disables the transmitter
- * after each output statement until the serial driver
- * is initialized. These glitches confuse the debug
- * terminal that ends up printing some trash.
- */
+ * Support for special bus policies or external transceivers
+ * on UART1 (to be overridden in "hw/hw_ser.h").
+ *
+ * HACK: if we don't set TXEN, kdbg disables the transmitter
+ * after each output statement until the serial driver
+ * is initialized. These glitches confuse the debug
+ * terminal that ends up printing some trash.
+ */
#ifndef KDBG_UART1_BUS_INIT
#define KDBG_UART1_BUS_INIT do { \
UCSR1B = BV(TXEN1); \
typedef uint8_t kdbg_irqsave_t;
+#elif CONFIG_KDEBUG_PORT == 2
+
+ /*
+ * Support for special bus policies or external transceivers
+ * on UART2 (to be overridden in "hw/hw_ser.h").
+ *
+ * HACK: if we don't set TXEN, kdbg disables the transmitter
+ * after each output statement until the serial driver
+ * is initialized. These glitches confuse the debug
+ * terminal that ends up printing some trash.
+ */
+ #ifndef KDBG_UART2_BUS_INIT
+ #define KDBG_UART2_BUS_INIT do { \
+ UCSR2B = BV(TXEN2); \
+ } while (0)
+ #endif
+ #ifndef KDBG_UART2_BUS_RX
+ #define KDBG_UART2_BUS_RX do {} while (0)
+ #endif
+ #ifndef KDBG_UART2_BUS_TX
+ #define KDBG_UART2_BUS_TX do {} while (0)
+ #endif
+
+ #define KDBG_WAIT_READY() do { loop_until_bit_is_set(UCSR2A, UDRE2); } while(0)
+ #define KDBG_WAIT_TXDONE() do { loop_until_bit_is_set(UCSR2A, TXC2); } while(0)
+ #define KDBG_WRITE_CHAR(c) do { UCSR2A |= BV(TXC2); UDR2 = (c); } while(0)
+
+ #define KDBG_MASK_IRQ(old) do { \
+ (old) = UCSR2B; \
+ UCSR2B |= BV(TXEN2); \
+ UCSR2B &= ~(BV(TXCIE2) | BV(UDRIE2)); \
+ KDBG_UART2_BUS_TX; \
+ } while(0)
+
+ #define KDBG_RESTORE_IRQ(old) do { \
+ KDBG_WAIT_TXDONE(); \
+ KDBG_UART2_BUS_RX; \
+ UCSR2B = (old); \
+ } while(0)
+
+ typedef uint8_t kdbg_irqsave_t;
+
+#elif CONFIG_KDEBUG_PORT == 3
+
+ /*
+ * Support for special bus policies or external transceivers
+ * on UART3 (to be overridden in "hw/hw_ser.h").
+ *
+ * HACK: if we don't set TXEN, kdbg disables the transmitter
+ * after each output statement until the serial driver
+ * is initialized. These glitches confuse the debug
+ * terminal that ends up printing some trash.
+ */
+ #ifndef KDBG_UART3_BUS_INIT
+ #define KDBG_UART3_BUS_INIT do { \
+ UCSR3B = BV(TXEN3); \
+ } while (0)
+ #endif
+ #ifndef KDBG_UART3_BUS_RX
+ #define KDBG_UART3_BUS_RX do {} while (0)
+ #endif
+ #ifndef KDBG_UART3_BUS_TX
+ #define KDBG_UART3_BUS_TX do {} while (0)
+ #endif
+
+ #define KDBG_WAIT_READY() do { loop_until_bit_is_set(UCSR3A, UDRE3); } while(0)
+ #define KDBG_WAIT_TXDONE() do { loop_until_bit_is_set(UCSR3A, TXC3); } while(0)
+ #define KDBG_WRITE_CHAR(c) do { UCSR3A |= BV(TXC3); UDR3 = (c); } while(0)
+
+ #define KDBG_MASK_IRQ(old) do { \
+ (old) = UCSR3B; \
+ UCSR3B |= BV(TXEN3); \
+ UCSR3B &= ~(BV(TXCIE3) | BV(UDRIE3)); \
+ KDBG_UART3_BUS_TX; \
+ } while(0)
+
+ #define KDBG_RESTORE_IRQ(old) do { \
+ KDBG_WAIT_TXDONE(); \
+ KDBG_UART3_BUS_RX; \
+ UCSR3B = (old); \
+ } while(0)
+
+ typedef uint8_t kdbg_irqsave_t;
+
+
/*
* Special debug port for BitBanged Serial see below for details...
*/
#elif CONFIG_KDEBUG_PORT == 666
- #include "hw_ser.h"
+ #include "hw/hw_ser.h"
#define KDBG_WAIT_READY() do { /*nop*/ } while(0)
#define KDBG_WRITE_CHAR(c) _kdebug_bitbang_putchar((c))
#define KDBG_MASK_IRQ(old) do { IRQ_SAVE_DISABLE((old)); } while(0)
#define KDBG_RESTORE_IRQ(old) do { IRQ_RESTORE((old)); } while(0)
- typedef cpuflags_t kdbg_irqsave_t;
+ typedef cpu_flags_t kdbg_irqsave_t;
- #define KDBG_DELAY (((CLOCK_FREQ + CONFIG_KDEBUG_BAUDRATE / 2) / CONFIG_KDEBUG_BAUDRATE) + 7) / 14
+ #define KDBG_DELAY (((CPU_FREQ + CONFIG_KDEBUG_BAUDRATE / 2) / CONFIG_KDEBUG_BAUDRATE) + 7) / 14
static void _kdebug_bitbang_delay(void)
{
/**
* Putchar for BITBANG serial debug console.
* Sometimes, we can't permit to use a whole serial for debugging purpose.
- * Since debug console is in output only it is usefull to use a single generic I/O pin for debug.
+ * Since debug console is in output only it is useful to use a single generic I/O pin for debug.
* This is achieved by this simple function, that shift out the data like a UART, but
* in software :)
* The only requirement is that SER_BITBANG_* macros will be defined somewhere (usually hw_ser.h)
}
}
#else
- #error CONFIG_KDEBUG_PORT should be either 0, 1 or 666
+ #error CONFIG_KDEBUG_PORT should be either 0, 1, 2, 3 or 666
#endif
SER_BITBANG_INIT;
#else /* CONFIG_KDEBUG_PORT != 666 */
/* Compute the baud rate */
- uint16_t period = DIV_ROUND(CLOCK_FREQ / 16UL, CONFIG_KDEBUG_BAUDRATE) - 1;
+ uint16_t period = DIV_ROUND(CPU_FREQ / 16UL, CONFIG_KDEBUG_BAUDRATE) - 1;
- #if (CPU_AVR_ATMEGA64 || CPU_AVR_ATMEGA128)
+ #if (CPU_AVR_ATMEGA64 || CPU_AVR_ATMEGA128 || CPU_AVR_ATMEGA1281)
#if CONFIG_KDEBUG_PORT == 0
UBRR0H = (uint8_t)(period>>8);
UBRR0L = (uint8_t)period;
#error CONFIG_KDEBUG_PORT must be either 0 or 1
#endif
- #elif CPU_AVR_ATMEGA168
- UBRR0H = (uint8_t)(period>>8);
- UBRR0L = (uint8_t)period;
- KDBG_UART0_BUS_INIT;
- #elif CPU_AVR_ATMEGA8
- UBRRH = (uint8_t)(period>>8);
- UBRRL = (uint8_t)period;
+ #elif CPU_AVR_ATMEGA1280
+ #if CONFIG_KDEBUG_PORT == 0
+ UBRR0H = (uint8_t)(period>>8);
+ UBRR0L = (uint8_t)period;
+ KDBG_UART0_BUS_INIT;
+ #elif CONFIG_KDEBUG_PORT == 1
+ UBRR1H = (uint8_t)(period>>8);
+ UBRR1L = (uint8_t)period;
+ KDBG_UART1_BUS_INIT;
+ #elif CONFIG_KDEBUG_PORT == 2
+ UBRR2H = (uint8_t)(period>>8);
+ UBRR2L = (uint8_t)period;
+ KDBG_UART2_BUS_INIT;
+ #elif CONFIG_KDEBUG_PORT == 3
+ UBRR3H = (uint8_t)(period>>8);
+ UBRR3L = (uint8_t)period;
+ KDBG_UART3_BUS_INIT;
+ #else
+ #error CONFIG_KDEBUG_PORT must be either 0 or 1 or 2 or 3
+ #endif
+
+ #elif CPU_AVR_ATMEGA168 || CPU_AVR_ATMEGA328P
+ #if CONFIG_KDEBUG_PORT == 0
+ UBRR0H = (uint8_t)(period>>8);
+ UBRR0L = (uint8_t)period;
+ KDBG_UART0_BUS_INIT;
+ #else
+ #error Only CONFIG_KDEBUG_PORT 0 is supported for this cpu
+ #endif
+
+ #elif CPU_AVR_ATMEGA8 || CPU_AVR_ATMEGA32
+ #if CONFIG_KDEBUG_PORT == 0
+ UBRRH = (uint8_t)(period>>8);
+ UBRRL = (uint8_t)period;
+ KDBG_UART0_BUS_INIT;
+ #else
+ #error Only CONFIG_KDEBUG_PORT 0 is supported for this cpu
+ #endif
#elif CPU_AVR_ATMEGA103
- UBRR = (uint8_t)period;
- KDBG_UART0_BUS_INIT;
+ #if CONFIG_KDEBUG_PORT == 0
+ UBRR = (uint8_t)period;
+ KDBG_UART0_BUS_INIT;
+ #else
+ #error Only CONFIG_KDEBUG_PORT 0 is supported for this cpu
+ #endif
#else
#error Unknown CPU
#endif
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