int watchdog_refresh()
{
uchar* fed_addr = ( uchar* )HW_ADDR( WATCHDOG_FED, 0 );
*fed_addr = WDT_FED_VAL;
return ERR_NONE;
}
static inline int console_ready_write( Console* cons )
{
ptr base = console_getbase( cons );
volatile uint* flags = HW_ADDR( base, UART_FLAG_OFFSET );
return ( ! ( *flags & TXFF_MASK ) ) && ( ( ! cons->flow_control ) || ( *flags & CTS_MASK ) );
}
static inline int console_ready_read( Console* cons )
{
ptr base = console_getbase( cons );
volatile uint* flags = HW_ADDR( base, UART_FLAG_OFFSET );
return ( ! ( *flags & RXFE_MASK ) );
}
int watchdog_deinit()
{
uchar* ctrl_addr = ( uchar* )HW_ADDR( WATCHDOG_CTRL, 0 );
watchdog_refresh();
*ctrl_addr = 0x00;
return ERR_NONE;
}
int watchdog_init()
{
uchar* ctrl_addr = ( uchar* )HW_ADDR( WATCHDOG_CTRL, 0 );
watchdog_refresh();
/* Timeout 8 seconds */
*ctrl_addr = 0x07;
DEBUG_PRINT( DBG_WATCHDOG, "watchdog initialized to %c\n", ( uchar* )HW_READ( WATCHDOG_CTRL, 0 ) );
return ERR_NONE;
}
#include "timer.h"
// Specifies how many timer ticks are in a microsecond.
#define TIMER_USEC 12
// Used for determining the physical address of the timer modules:
#define TIMER_ADDR(hw_addr) UNSIGNED_DIFF(hw_addr, 0x80000000)
// Information structure for the various timers:
static struct {
volatile uint32_t * memspace;
timer_mode_t mode;
uint32_t usec;
timer_callback_func callback;
} timers[] = {
{ HW_ADDR(TIMER0_BASE), TIMER_MODE_NONE, 0, NULL },
{ HW_ADDR(TIMER1_BASE), TIMER_MODE_NONE, 0, NULL },
{ HW_ADDR(TIMER2_BASE), TIMER_MODE_NONE, 0, NULL },
{ HW_ADDR(TIMER3_BASE), TIMER_MODE_NONE, 0, NULL },
{ HW_ADDR(TIMER4_BASE), TIMER_MODE_NONE, 0, NULL },
{ HW_ADDR(TIMER5_BASE), TIMER_MODE_NONE, 0, NULL },
{ HW_ADDR(TIMER6_BASE), TIMER_MODE_NONE, 0, NULL },
{ HW_ADDR(TIMER7_BASE), TIMER_MODE_NONE, 0, NULL },
{ HW_ADDR(TIMER8_BASE), TIMER_MODE_NONE, 0, NULL },
{ HW_ADDR(TIMER9_BASE), TIMER_MODE_NONE, 0, NULL },
{ HW_ADDR(TIMER10_BASE), TIMER_MODE_NONE, 0, NULL },
};
// Initializes the specified timer:
void timer_reset(int timer, timer_mode_t mode, uint32_t usec, timer_callback_func callback)
{
