+++ /dev/null
-/*!
- * \file
- * <!--
- * Copyright 2003, 2004, 2005 Develer S.r.l. (http://www.develer.com/)
- * Copyright 2000, 2001, 2002 Bernardo Innocenti <bernie@codewiz.org>
- * This file is part of DevLib - See README.devlib for information.
- * -->
- *
- * \brief General pourpose debug support for embedded systems (implementation).
- *
- * \version $Id$
- * \author Bernardo Innocenti <bernie@develer.com>
- * \author Stefano Fedrigo <aleph@develer.com>
- */
-
-/*#*
- *#* $Log$
- *#* Revision 1.24 2005/04/12 01:36:37 bernie
- *#* Add hack to enable TX line at module initialization.
- *#*
- *#* Revision 1.23 2005/04/11 19:10:27 bernie
- *#* Include top-level headers from cfg/ subdir.
- *#*
- *#* Revision 1.22 2005/02/18 11:18:33 bernie
- *#* Fixes for Harvard processors from project_ks.
- *#*
- *#* Revision 1.21 2005/02/16 20:29:48 bernie
- *#* TRACE(), TRACEMSG(): Reduce code and data footprint.
- *#*
- *#* Revision 1.20 2005/01/25 08:36:40 bernie
- *#* kputnum(): Export.
- *#*
- *#* Revision 1.19 2004/12/31 17:47:45 bernie
- *#* Rename UNUSED() to UNUSED_ARG().
- *#*/
-
-#include <cfg/debug.h>
-#include <cfg/cpu.h>
-#include <cfg/macros.h> /* for BV() */
-#include <cfg/config.h>
-#include <hw.h>
-
-#include <mware/formatwr.h> /* for _formatted_write() */
-
-#ifdef _DEBUG
-
-#if defined(_EMUL)
- #include <stdio.h>
- #define KDBG_WAIT_READY() do { /*nop*/ } while(0)
- #define KDBG_WRITE_CHAR(c) putchar((c))
- #define KDBG_MASK_IRQ(old) do { (void)(old); } while(0)
- #define KDBG_RESTORE_IRQ(old) do { /*nop*/ } while(0)
- typedef char kdbg_irqsave_t; /* unused */
-#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); }
- typedef uint16_t kdbg_irqsave_t; /* FIXME: unconfirmed */
-#elif CPU_AVR
- #include <avr/io.h>
-
- #if CONFIG_KDEBUG_PORT == 0
-
- /*
- * Support for special bus policies or external transceivers
- * on UART0 (to be overridden in "hw.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_UART0_BUS_INIT
- #define KDBG_UART0_BUS_INIT do { \
- UCSR0B = BV(TXEN); \
- } 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 CPU_AVR_ATMEGA64
- #define UCR UCSR0B
- #define UDR UDR0
- #define USR UCSR0A
- #elif CPU_AVR_ATMEGA8
- #define UCR UCSRB
- #define USR UCSRA
- #else
- #error Unknown CPU
- #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)
-
- /*
- * We must clear the TXC flag before sending a new character to allow
- * KDBG_WAIT_TXDONE() to work properly.
- *
- * BUG: if KDBG_WRITE_CHAR() is called after the TXC flag is set by hardware,
- * a new TXC could be generated after we've cleared it and before the new
- * character is written to UDR. On a 485 bus, the transceiver will be put
- * in RX mode while still transmitting the last char.
- */
- #define KDBG_WRITE_CHAR(c) do { USR |= BV(TXC); UDR = (c); } while(0)
-
- #define KDBG_MASK_IRQ(old) do { \
- (old) = UCR; \
- UCR |= BV(TXEN); \
- UCR &= ~(BV(TXCIE) | BV(UDRIE)); \
- KDBG_UART0_BUS_TX; \
- } while(0)
-
- #define KDBG_RESTORE_IRQ(old) do { \
- KDBG_WAIT_TXDONE(); \
- KDBG_UART0_BUS_RX; \
- UCR = (old); \
- } while(0)
-
- typedef uint8_t kdbg_irqsave_t;
-
- #elif CONFIG_KDEBUG_PORT == 1
-
- /*
- * Support for special bus policies or external transceivers
- * on UART1 (to be overridden in "hw.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(TXEN); \
- } 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)
- #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 { \
- (old) = UCSR1B; \
- UCSR1B |= BV(TXEN); \
- UCSR1B &= ~(BV(TXCIE) | BV(UDRIE)); \
- KDBG_UART1_BUS_TX; \
- } while(0)
-
- #define KDBG_RESTORE_IRQ(old) do { \
- KDBG_WAIT_TXDONE(); \
- KDBG_UART1_BUS_RX; \
- UCSR1B = (old); \
- } while(0)
-
- typedef uint8_t kdbg_irqsave_t;
- #else
- #error CONFIG_KDEBUG_PORT should be either 0 or 1
- #endif
-#elif defined(__MWERKS__) && CPU_DSP56K
- /* Debugging go through the JTAG interface. The MSL library already
- implements the console I/O correctly. */
- #include <stdio.h>
- #define KDBG_WAIT_READY() do { } while (0)
- #define KDBG_WRITE_CHAR(c) __put_char(c, stdout)
- #define KDBG_MASK_IRQ(old) do { (void)(old); } while (0)
- #define KDBG_RESTORE_IRQ(old) do { (void)(old); } while (0)
- typedef uint8_t kdbg_irqsave_t; /* unused */
-#else
- #error Unknown architecture
-#endif
-
-
-void kdbg_init(void)
-{
-#if CPU_I196
-
- /* Set serial port for 19200bps 8N1 */
- INT_MASK1 &= ~(INT1F_TI | INT1F_RI);
- SP_CON = SPCF_RECEIVE_ENABLE | SPCF_MODE1;
- ioc1_img |= IOC1F_TXD_SEL | IOC1F_EXTINT_SRC;
- IOC1 = ioc1_img;
- BAUD_RATE = 0x33;
- BAUD_RATE = 0x80;
-
-#elif CPU_AVR
-
- /* Compute the baud rate */
- uint16_t period = (((CLOCK_FREQ / 16UL) + (CONFIG_KDEBUG_BAUDRATE / 2)) / CONFIG_KDEBUG_BAUDRATE) - 1;
-
- #if CPU_AVR_ATMEGA64
- #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;
- #else
- #error CONFIG_KDEBUG_PORT must be either 0 or 1
- #endif
- #elif CPU_AVR_ATMEGA8
- UBRRH = (uint8_t)(period>>8);
- UBRRL = (uint8_t)period;
- #elif CPU_AVR_ATMEGA103
- UBRR = (uint8_t)period;
- KDBG_UART0_BUS_INIT;
- #else
- #error Unknown CPU
- #endif
-
-#endif /* !CPU_I196 && !CPU_AVR */
-
- kputs("\n\n*** DBG START ***\n");
-}
-
-
-/*!
- * Output one character to the debug console
- */
-static void __kputchar(char c, UNUSED_ARG(void *, unused))
-{
- /* Poll while serial buffer is still busy */
- KDBG_WAIT_READY();
-
- /* Send '\n' as '\r\n' for dumb terminals */
- if (c == '\n')
- {
- KDBG_WRITE_CHAR('\r');
- KDBG_WAIT_READY();
- }
-
- KDBG_WRITE_CHAR(c);
-}
-
-
-void kputchar(char c)
-{
- /* Mask serial TX intr */
- kdbg_irqsave_t irqsave;
- KDBG_MASK_IRQ(irqsave);
-
- __kputchar(c, 0);
-
- /* Restore serial TX intr */
- KDBG_RESTORE_IRQ(irqsave);
-}
-
-
-static void PGM_FUNC(kvprintf)(const char * PGM_ATTR fmt, va_list ap)
-{
-#if CONFIG_PRINTF
- /* Mask serial TX intr */
- kdbg_irqsave_t irqsave;
- KDBG_MASK_IRQ(irqsave);
-
- PGM_FUNC(_formatted_write)(fmt, __kputchar, 0, ap);
-
- /* Restore serial TX intr */
- KDBG_RESTORE_IRQ(irqsave);
-#else
- /* A better than nothing printf() surrogate. */
- PGM_FUNC(kputs)(fmt);
-#endif /* CONFIG_PRINTF */
-}
-
-void PGM_FUNC(kprintf)(const char * PGM_ATTR fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- PGM_FUNC(kvprintf)(fmt, ap);
- va_end(ap);
-}
-
-void PGM_FUNC(kputs)(const char * PGM_ATTR str)
-{
- char c;
-
- /* Mask serial TX intr */
- kdbg_irqsave_t irqsave;
- KDBG_MASK_IRQ(irqsave);
-
- while ((c = PGM_READ_CHAR(str++)))
- __kputchar(c, 0);
-
- KDBG_RESTORE_IRQ(irqsave);
-}
-
-
-/*!
- * Cheap function to print small integers without using printf().
- */
-int kputnum(int num)
-{
- int output_len = 0;
- int divisor = 10000;
- int digit;
-
- do
- {
- digit = num / divisor;
- num %= divisor;
-
- if (digit || output_len || divisor == 1)
- {
- kputchar(digit + '0');
- ++output_len;
- }
- }
- while (divisor /= 10);
-
- return output_len;
-}
-
-
-static void klocation(const char * PGM_ATTR file, int line)
-{
- PGM_FUNC(kputs)(file);
- kputchar(':');
- kputnum(line);
- PGM_FUNC(kputs)(PSTR(": "));
-}
-
-int PGM_FUNC(__assert)(const char * PGM_ATTR cond, const char * PGM_ATTR file, int line)
-{
- klocation(file, line);
- PGM_FUNC(kputs)(PSTR("Assertion failed: "));
- PGM_FUNC(kputs)(cond);
- kputchar('\n');
- return 1;
-}
-
-/*
- * Unfortunately, there's no way to get __func__ in
- * program memory, so we waste quite a lot of RAM in
- * AVR and other Harvard processors.
- */
-void PGM_FUNC(__trace)(const char *name)
-{
- PGM_FUNC(kprintf)(PSTR("%s()\n"), name);
-}
-
-void PGM_FUNC(__tracemsg)(const char *name, const char * PGM_ATTR fmt, ...)
-{
- va_list ap;
-
- PGM_FUNC(kprintf)(PSTR("%s(): "), name);
- va_start(ap, fmt);
- PGM_FUNC(kvprintf)(fmt, ap);
- va_end(ap);
-}
-
-int PGM_FUNC(__invalid_ptr)(void *value, const char * PGM_ATTR name, const char * PGM_ATTR file, int line)
-{
- klocation(file, line);
- PGM_FUNC(kputs)(PSTR("Invalid ptr: "));
- PGM_FUNC(kputs)(name);
- #if CONFIG_PRINTF
- PGM_FUNC(kprintf)(PSTR(" = 0x%x\n"), value);
- #else
- (void)value;
- kputchar('\n');
- #endif
- return 1;
-}
-
-
-void __init_wall(long *wall, int size)
-{
- while(size--)
- *wall++ = WALL_VALUE;
-}
-
-
-int PGM_FUNC(__check_wall)(long *wall, int size, const char * PGM_ATTR name, const char * PGM_ATTR file, int line)
-{
- int i, fail = 0;
-
- for (i = 0; i < size; i++)
- {
- if (wall[i] != WALL_VALUE)
- {
- klocation(file, line);
- PGM_FUNC(kputs)(PSTR("Wall broken: "));
- PGM_FUNC(kputs)(name);
- #if CONFIG_PRINTF
- PGM_FUNC(kprintf)(PSTR("[%d] (0x%p) = 0x%lx\n"), i, wall + i, wall[i]);
- #else
- kputchar('\n');
- #endif
- fail = 1;
- }
- }
-
- return fail;
-}
-
-
-#if CONFIG_PRINTF
-
-/*!
- * Dump binary data in hex
- */
-void kdump(const void *_buf, size_t len)
-{
- const unsigned char *buf = (const unsigned char *)_buf;
-
- while (len--)
- kprintf("%02X", *buf++);
- kputchar('\n');
-}
-
-#endif /* CONFIG_PRINTF */
-
-#endif /* _DEBUG */
projects / bertos.git / blobdiff