cLK/lk/platform/at91sam7/debug.c

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2011-11-06 23:26:22 +00:00
/*
* Copyright (c) 2008 Travis Geiselbrecht
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <debug.h>
#include <printf.h>
#include <platform/at91sam7.h>
#include <kernel/thread.h>
#include <stdarg.h>
void ser_init(void)
{
AT91DBGU *dbgu = AT91DBGU_ADDR;
// AT91PIO *pio = AT91PIO_ADDR;
// pio->select_a = PIN_DRXD | PIN_DTXD;
// pio->pio_disable = PIN_DRXD | PIN_DTXD;
dbgu->MR = DBGU_PAR_NONE | DBGU_MODE_NORMAL;
// dbgu->BRGR = 10; //MCK_IN_MHZ / 115200 / 16;
dbgu->BRGR = AT91_MCK_MHZ / 115200 / 16;
dbgu->CR = DBGU_RXEN | DBGU_TXEN;
}
void ser_putc(unsigned c)
{
AT91DBGU *dbgu = AT91DBGU_ADDR;
if(c == 10) {
while(!(dbgu->SR & DBGU_TXRDY));
dbgu->THR = 13;
}
while(!(dbgu->SR & DBGU_TXRDY));
dbgu->THR = c;
}
void ser_puts(const char *s)
{
AT91DBGU *dbgu = AT91DBGU_ADDR;
while(*s) {
if(*s == 10) {
while(!(dbgu->SR & DBGU_TXRDY));
dbgu->THR = 13;
}
while(!(dbgu->SR & DBGU_TXRDY));
dbgu->THR = *s++;
}
}
void _dputc(char c)
{
ser_putc(c);
}
void platform_halt()
{
arch_disable_ints();
for(;;);
}
uint32_t debug_cycle_count()
{
PANIC_UNIMPLEMENTED;
}