+++ /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 1.31 2007/06/07 14:25:30 batt
- *#* Merge from project_ks
- *#*
- *#* Revision 1.30 2007/01/28 09:18:06 batt
- *#* Merge from project_ks.
- *#*
- *#* Revision 1.29 2006/11/23 13:19:39 batt
- *#* Add BitBanged serial debug console.
- *#*
- *#* Revision 1.28 2006/07/19 12:56:25 bernie
- *#* Convert to new Doxygen style.
- *#*
- *#* Revision 1.27 2006/06/01 12:32:06 marco
- *#* Updated include reference.
- *#*
- *#* Revision 1.26 2006/04/27 05:40:27 bernie
- *#* Break on assertion failures.
- *#*
- *#* Revision 1.25 2005/06/27 21:26:24 bernie
- *#* Misc PGM fixes.
- *#*
- *#* 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 <appconfig.h>
-#include <hw_cpu.h> /* for CLOCK_FREQ */
-#include <hw_ser.h> /* Required for bus macros overrides */
-
-#include <mware/formatwr.h> /* for _formatted_write() */
-
-#ifdef _DEBUG
-
-#if CPU_HARVARD && !defined(_PROGMEM)
- #error This module build correctly only in program memory!
-#endif
-
-#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 */
-
- #if CONFIG_KDEBUG_PORT == 666
- #error BITBANG debug console missing for this platform
- #endif
-#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 */
-
- #if CONFIG_KDEBUG_PORT == 666
- #error BITBANG debug console missing for this platform
- #endif
-#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_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_UART0_BUS_INIT
- #define KDBG_UART0_BUS_INIT do { \
- UCSR0B = BV(TXEN0); \
- } 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 || CPU_AVR_ATMEGA128 || CPU_AVR_ATMEGA168
- #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, UDRE0); } while(0)
- #define KDBG_WAIT_TXDONE() do { loop_until_bit_is_set(USR, TXC0); } 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(TXC0); UDR = (c); } while(0)
-
- #define KDBG_MASK_IRQ(old) do { \
- (old) = UCR; \
- UCR |= BV(TXEN0); \
- UCR &= ~(BV(TXCIE0) | BV(UDRIE0)); \
- 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_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); \
- } 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, UDRE1); } while(0)
- #define KDBG_WAIT_TXDONE() do { loop_until_bit_is_set(UCSR1A, TXC1); } while(0)
- #define KDBG_WRITE_CHAR(c) do { UCSR1A |= BV(TXC1); UDR1 = (c); } while(0)
-
- #define KDBG_MASK_IRQ(old) do { \
- (old) = UCSR1B; \
- UCSR1B |= BV(TXEN1); \
- UCSR1B &= ~(BV(TXCIE1) | BV(UDRIE1)); \
- 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;
-
- /*
- * Special debug port for BitBanged Serial see below for details...
- */
- #elif CONFIG_KDEBUG_PORT == 666
- #include "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;
-
- #define KDBG_DELAY (((CLOCK_FREQ + CONFIG_KDEBUG_BAUDRATE / 2) / CONFIG_KDEBUG_BAUDRATE) + 7) / 14
-
- static void _kdebug_bitbang_delay(void)
- {
- unsigned long i;
-
- for (i = 0; i < KDBG_DELAY; i++)
- {
- NOP;
- NOP;
- NOP;
- NOP;
- NOP;
- }
- }
- #else
- #error CONFIG_KDEBUG_PORT should be either 0, 1 or 666
- #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 */
- #if CONFIG_KDEBUG_PORT == 666
- #error BITBANG debug console missing for this platform
- #endif
-#else
- #error Unknown architecture
-#endif
-
-#if CONFIG_KDEBUG_PORT == 666
- /**
- * 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.
- * 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)
- * \note All interrupts are disabled during debug prints!
- */
- static void _kdebug_bitbang_putchar(char c)
- {
- int i;
- uint16_t data = c;
-
- /* Add stop bit */
- data |= 0x0100;
-
- /* Add start bit*/
- data <<= 1;
-
- /* Shift out data */
- uint16_t shift = 1;
- for (i = 0; i < 10; i++)
- {
- if (data & shift)
- SER_BITBANG_HIGH;
- else
- SER_BITBANG_LOW;
- _kdebug_bitbang_delay();
- shift <<= 1;
- }
- }
-#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
- #if CONFIG_KDEBUG_PORT == 666
- SER_BITBANG_INIT;
- #else /* CONFIG_KDEBUG_PORT != 666 */
- /* Compute the baud rate */
- uint16_t period = (((CLOCK_FREQ / 16UL) + (CONFIG_KDEBUG_BAUDRATE / 2)) / CONFIG_KDEBUG_BAUDRATE) - 1;
-
- #if (CPU_AVR_ATMEGA64 || CPU_AVR_ATMEGA128)
- #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_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_ATMEGA103
- UBRR = (uint8_t)period;
- KDBG_UART0_BUS_INIT;
- #else
- #error Unknown CPU
- #endif
- #endif /* CONFIG_KDEBUG_PORT == 666 */
-
-#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)(PGM_STR(": "));
-}
-
-int PGM_FUNC(__assert)(const char * PGM_ATTR cond, const char * PGM_ATTR file, int line)
-{
- klocation(file, line);
- PGM_FUNC(kputs)(PGM_STR("Assertion failed: "));
- PGM_FUNC(kputs)(cond);
- kputchar('\n');
- BREAKPOINT;
- 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)(PGM_STR("%s()\n"), name);
-}
-
-void PGM_FUNC(__tracemsg)(const char *name, const char * PGM_ATTR fmt, ...)
-{
- va_list ap;
-
- PGM_FUNC(kprintf)(PGM_STR("%s(): "), name);
- va_start(ap, fmt);
- PGM_FUNC(kvprintf)(fmt, ap);
- va_end(ap);
- kputchar('\n');
-}
-
-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)(PGM_STR("Invalid ptr: "));
- PGM_FUNC(kputs)(name);
- #if CONFIG_PRINTF
- PGM_FUNC(kprintf)(PGM_STR(" = 0x%x\n"), (unsigned int)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)(PGM_STR("Wall broken: "));
- PGM_FUNC(kputs)(name);
- #if CONFIG_PRINTF
- PGM_FUNC(kprintf)(PGM_STR("[%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 */
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