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authorFlorent Duchon2012-12-26 17:36:00 +0100
committerFlorent Duchon2013-02-13 21:21:12 +0100
commitb24866225a6301d3a663f874725e83c012dc25d3 (patch)
treeca527a2aab9abcdfbaf244c53ca63f0c531892b0 /digital/zigbit/bitcloud/stack/Components/HAL/avr/atmega1281/common/src/halWdtInit.c
parent2ba279f4eb2f23fa08a7c13465d16ae6ba5d0f96 (diff)
digital/beacon: add bitcloud stack into common directory digital/zigbit
Diffstat (limited to 'digital/zigbit/bitcloud/stack/Components/HAL/avr/atmega1281/common/src/halWdtInit.c')
-rw-r--r--digital/zigbit/bitcloud/stack/Components/HAL/avr/atmega1281/common/src/halWdtInit.c175
1 files changed, 175 insertions, 0 deletions
diff --git a/digital/zigbit/bitcloud/stack/Components/HAL/avr/atmega1281/common/src/halWdtInit.c b/digital/zigbit/bitcloud/stack/Components/HAL/avr/atmega1281/common/src/halWdtInit.c
new file mode 100644
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--- /dev/null
+++ b/digital/zigbit/bitcloud/stack/Components/HAL/avr/atmega1281/common/src/halWdtInit.c
@@ -0,0 +1,175 @@
+/**************************************************************************//**
+ \file halWdtInit.c
+
+ \brief Implementation of WDT start up procedure.
+
+ \author
+ Atmel Corporation: http://www.atmel.com \n
+ Support email: avr@atmel.com
+
+ Copyright (c) 2008-2011, Atmel Corporation. All rights reserved.
+ Licensed under Atmel's Limited License Agreement (BitCloudTM).
+
+ \internal
+ History:
+ 29/05/07 E. Ivanov - Created
+ ******************************************************************************/
+/******************************************************************************
+ * WARNING: CHANGING THIS FILE MAY AFFECT CORE FUNCTIONALITY OF THE STACK. *
+ * EXPERT USERS SHOULD PROCEED WITH CAUTION. *
+ ******************************************************************************/
+
+/******************************************************************************
+ Includes section
+******************************************************************************/
+#include <types.h>
+#include <resetReason.h>
+#include <halAppClock.h>
+
+/******************************************************************************
+ Defines section
+******************************************************************************/
+#define PIN_OUT 62500
+#define MEANING_BITS 0x1F
+
+/******************************************************************************
+ Prototypes section
+******************************************************************************/
+#ifdef _SYS_ASSERT_ON_
+ INLINE void halJumpNullHandler(void);
+#endif
+
+/******************************************************************************
+ Global variables section
+******************************************************************************/
+#if defined(__GNUC__)
+ uint8_t halResetReason __attribute__ ((section (".noinit")));
+#elif defined(__ICCAVR__)
+ __no_init uint8_t halResetReason;
+#endif
+
+/******************************************************************************
+ Implementations section
+******************************************************************************/
+/******************************************************************************
+Resets and stops wdt. Saves the reason of reset.
+Parameters:
+ none.
+Returns:
+ none.
+******************************************************************************/
+#if defined(__GNUC__)
+
+ void halWdtInit(void) __attribute__ ((naked)) \
+ __attribute__ ((section (".init0")));
+
+ void halWdtInit(void)
+ {
+ ASM("clr r1");
+#elif defined(__ICCAVR__)
+
+ __task void halWdtInit(void)
+ {
+ ASM("clr r15");
+#else
+ #error 'Compiler not supported.'
+#endif
+
+ if (TEMP_WARM_RESET != halResetReason)
+ {
+ halResetReason = MCUSR & MEANING_BITS;
+
+ if (halResetReason & POWER_ON_RESET)
+ halResetReason = POWER_ON_RESET;
+ }
+ else
+ {
+ halResetReason = WARM_RESET;
+ }
+ MCUSR = 0;
+ WDTCSR |= (1 << WDCE) | (1 << WDE);
+ WDTCSR = 0x00;
+
+ #ifdef _SYS_ASSERT_ON_
+ halJumpNullHandler();
+ #endif
+ }
+
+#ifdef _SYS_ASSERT_ON_
+/******************************************************************************
+Jump to NULL handler.
+Parameters:
+ none.
+Returns:
+ none.
+******************************************************************************/
+void halJumpNullHandler(void)
+{
+ if (0 == halResetReason) // was jump on NULL
+ {
+ register volatile uint16_t tmp;
+ tmp = SP;
+
+ ASM ("cli");
+ DDRB |= 0xE0;
+ /* Init UART*/
+ UBRR1H = 0;
+ #if (F_CPU == 4000000ul)
+ UBRR1L = 12;
+ #elif (F_CPU == 8000000ul)
+ UBRR1L = 25;
+ #endif
+ UCSR1A = (1 << U2X1);
+ UCSR1B = (1 << TXEN1);
+ UCSR1C = (3 << UCSZ10); // 8-bit data
+
+ /* Init timer counter 4.*/
+ OCR4A = 0;
+ /* Disable TC4 interrupt */
+ TIMSK4 &= ~(1 << OCIE4A);
+ /* main clk / 8 */
+ TCCR4B = (1 << WGM12) | (1 << CS11);
+
+ while (1)
+ {
+ do
+ { /* Send byte to UART */
+ while (!(UCSR1A & (1 << UDRE1)));
+ UDR1 = *((uint8_t *)SP);
+ SP++;
+ } while (RAMEND >= SP);
+ SP = tmp;
+
+ PORTB |= 0x80;
+ TCNT4 = 0;
+ while(TCNT4 < PIN_OUT);
+ PORTB &= ~0x80;
+ PORTB |= 0x40;
+ TCNT4 = 0;
+ while(TCNT4 < PIN_OUT);
+ PORTB &= ~0x40;
+ PORTB |= 0x20;
+ TCNT4 = 0;
+ while(TCNT4 < PIN_OUT);
+ PORTB &= ~0x20;
+ }
+ }
+}
+#endif
+
+#if defined(__GNUC__) && defined(_REPORT_STATS_)
+void halFillStack(void) __attribute__ ((naked, section (".init1")));
+/**************************************************************************//**
+\brief Fill cstack with repeated pattern 0xCD
+******************************************************************************/
+void halFillStack(void)
+{
+ extern uint16_t __stack_start;
+ extern uint16_t __stack;
+
+ for (uint8_t *start = (uint8_t *)&__stack_start; start <= (uint8_t *)&__stack; start++)
+ *start = 0xCD;
+}
+#endif
+
+// eof halWdtInit.c