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#ifndef OWI_H
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#define OWI_H
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#include "r_cg_macrodriver.h"
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#include "r_cg_serial.h"
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#include "r_cg_port.h"
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#include <stdint.h>
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/* =========================================================
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* OWI GPIO: P70 (P7.0) + HW Open-Drain (POM7.0)
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* ========================================================= */
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#define OWI_PORT_P P7 /* port data (read/write latch) */
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#define OWI_PORT_PM PM7 /* port mode (1=input, 0=output) */
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#define OWI_PORT_PU PU7 /* pull-up enable */
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#define OWI_PORT_POM POM7 /* open-drain enable */
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/* P70 = bit0 */
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#define OWI_PIN_MASK (1u << 0)
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/* =========================================================
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* Timing (기존 네 값 유지)
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* ========================================================= */
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#define OWI_BIT_PERIOD_US 1200u
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#define TBIT OWI_BIT_PERIOD_US
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#define TLOW_0 ((TBIT * 3u) / 4u) /* 75us (double calc) */
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#define TLOW_1 ((TBIT * 1u) / 4u) /* 25us */
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#define TSTOP_LOW (TBIT * 2) /* 200us */
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#define TIDLE (TBIT * 3) /* 300us */
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#define TSTART_HOLD 50u
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#define SECURE_HIGH (2u * TBIT)
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#define SECURE_TOGGLE_COUNT 3u
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#define SECURE_TOGGLE_LOW (TBIT / 4u)
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#define SECURE_TOGGLE_HIGH (TBIT / 5u)
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#define OWI_STRONG_HIGH_US 5u /* 10~80us 범위에서 튜닝 */
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/* =========================================================
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* External dependencies
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* ========================================================= */
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#ifndef RAM_BYTES
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#define RAM_BYTES 3
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#endif
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/* =========================================================
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* API
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* ========================================================= */
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void GPIO_Clear(void);
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void GPIO_Input(void);
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int GPIO_Read(void);
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void OWI_Init(uint32_t bit_time_us);
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void OWI_Start(void);
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void OWI_Stop(void);
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void OWI_SecureStop(void);
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void OWI_WriteBit(int bit);
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void OWI_WriteByte(uint8_t data);
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uint8_t OWI_ReadBit(void);
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uint8_t OWI_ReadByte(void);
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void OWI_T_ReadBytesAndPrint(int length);
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void OWI_ReadBytesAndPrint(int length, uint8_t id);
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void OWI_T_CommandMode(const uint8_t *tx_data, uint8_t tx_len, uint8_t id);
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void OWI_CommandMode (const uint8_t *tx_data, uint8_t tx_len, uint8_t id);
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void OWI_A_CommandMode(const uint8_t *tx_data, uint8_t tx_len, uint8_t id);
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void OWI_disable(void);
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/* strong high kick (push assist) */
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void GPIO_ForceHighKick(void);
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#endif /* OWI_H */
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