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#ifndef MYRADIO_PHY_DEBUG_H_
#define MYRADIO_PHY_DEBUG_H_
/*** Debugging interface for the PHY ***/
#include "util.h"
#include <stdint.h>
#include <avr/io.h>
/* We have a debugwire that we can switch high/low
* for debugging the PHY code. */
#define DEBUGWIRE_PORT PORTC
#define DEBUGWIRE_DDR DDRC
#define DEBUGWIRE_BIT 5
static inline void debug_set(bool bit_high)
{
if (bit_high)
DEBUGWIRE_PORT |= (1 << DEBUGWIRE_BIT);
else
DEBUGWIRE_PORT &= ~(1 << DEBUGWIRE_BIT);
}
static inline void debug_flip(void)
{
DEBUGWIRE_PORT ^= (1 << DEBUGWIRE_BIT);
}
static inline void debug_put_signature(void)
{
uint8_t i;
debug_set(0);
for (i = 0; i < 8; i++) {
debug_flip();
udelay(500);
}
debug_set(0);
}
static inline void debug_put_bytes(const void *_buf, uint8_t size,
uint8_t msec_delay)
{
const uint8_t *buf = _buf;
uint8_t i;
int8_t j;
debug_put_signature();
mdelay(msec_delay);
mdelay(msec_delay);
for (i = 0; i < size; i++) {
for (j = 7; j >= 0; j--) {
debug_set(buf[i] & (1 << j));
mdelay(msec_delay);
}
}
mdelay(msec_delay);
mdelay(msec_delay);
debug_put_signature();
}
static inline void debug_initialize(void)
{
debug_set(0);
DEBUGWIRE_DDR |= (1 << DEBUGWIRE_BIT);
}
#endif /* MYRADIO_PHY_DEBUG_H_ */
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