SONY_UNIT
if (!geq_margin(ev.duration, SONY_TRAILER_SPACE, SONY_UNIT / 2))
#define SONY_HEADER_PULSE (4 * SONY_UNIT)
#define SONY_HEADER_SPACE (1 * SONY_UNIT)
#define SONY_BIT_0_PULSE (1 * SONY_UNIT)
#define SONY_BIT_1_PULSE (2 * SONY_UNIT)
#define SONY_BIT_SPACE (1 * SONY_UNIT)
#define SONY_TRAILER_SPACE (10 * SONY_UNIT) /* minimum */
if (!geq_margin(ev.duration, SONY_UNIT, SONY_UNIT / 2))
if (!eq_margin(ev.duration, SONY_HEADER_PULSE, SONY_UNIT / 2))
if (!eq_margin(ev.duration, SONY_HEADER_SPACE, SONY_UNIT / 2))
if (eq_margin(ev.duration, SONY_BIT_1_PULSE, SONY_UNIT / 2))
else if (!eq_margin(ev.duration, SONY_BIT_0_PULSE, SONY_UNIT / 2))
if (!geq_margin(ev.duration, SONY_BIT_SPACE, SONY_UNIT / 2))
if (!geq_margin(ev.duration, SONY_UNIT, SONY_UNIT / 2)) {