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/* Copyright 2021 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/** @file
*
* @brief Backend API for SYV682X emulator
*/
#ifndef __EMUL_SYV682X_H
#define __EMUL_SYV682X_H
#include <stdint.h>
#include <zephyr/drivers/i2c_emul.h>
/* Register info copied from syv682.h */
/* SYV682x register addresses */
#define SYV682X_STATUS_REG 0x00
#define SYV682X_CONTROL_1_REG 0x01
#define SYV682X_CONTROL_2_REG 0x02
#define SYV682X_CONTROL_3_REG 0x03
#define SYV682X_CONTROL_4_REG 0x04
/* Status Register */
#define SYV682X_STATUS_OC_HV BIT(7)
#define SYV682X_STATUS_RVS BIT(6)
#define SYV682X_STATUS_OC_5V BIT(5)
#define SYV682X_STATUS_OVP BIT(4)
#define SYV682X_STATUS_FRS BIT(3)
#define SYV682X_STATUS_TSD BIT(2)
#define SYV682X_STATUS_VSAFE_5V BIT(1)
#define SYV682X_STATUS_VSAFE_0V BIT(0)
#define SYV682X_STATUS_INT_MASK 0xfc
#define SYV682X_STATUS_NONE 0
/* Control Register 1 */
#define SYV682X_CONTROL_1_CH_SEL BIT(1)
#define SYV682X_CONTROL_1_HV_DR BIT(2)
#define SYV682X_CONTROL_1_PWR_ENB BIT(7)
#define SYV682X_5V_ILIM_MASK 0x18
#define SYV682X_5V_ILIM_BIT_SHIFT 3
#define SYV682X_5V_ILIM_1_25 0
#define SYV682X_5V_ILIM_1_75 1
#define SYV682X_5V_ILIM_2_25 2
#define SYV682X_5V_ILIM_3_30 3
#define SYV682X_HV_ILIM_MASK 0x60
#define SYV682X_HV_ILIM_BIT_SHIFT 5
#define SYV682X_HV_ILIM_1_25 0
#define SYV682X_HV_ILIM_1_75 1
#define SYV682X_HV_ILIM_3_30 2
#define SYV682X_HV_ILIM_5_50 3
/* Control Register 2 */
#define SYV682X_OC_DELAY_MASK GENMASK(7, 6)
#define SYV682X_OC_DELAY_SHIFT 6
#define SYV682X_OC_DELAY_1MS 0
#define SYV682X_OC_DELAY_10MS 1
#define SYV682X_OC_DELAY_50MS 2
#define SYV682X_OC_DELAY_100MS 3
#define SYV682X_DSG_TIME_MASK GENMASK(5, 4)
#define SYV682X_DSG_TIME_SHIFT 4
#define SYV682X_DSG_TIME_50MS 0
#define SYV682X_DSG_TIME_100MS 1
#define SYV682X_DSG_TIME_200MS 2
#define SYV682X_DSG_TIME_400MS 3
#define SYV682X_DSG_RON_MASK GENMASK(3, 2)
#define SYV682X_DSG_RON_SHIFT 2
#define SYV682X_DSG_RON_200_OHM 0
#define SYV682X_DSG_RON_400_OHM 1
#define SYV682X_DSG_RON_800_OHM 2
#define SYV682X_DSG_RON_1600_OHM 3
#define SYV682X_CONTROL_2_SDSG BIT(1)
#define SYV682X_CONTROL_2_FDSG BIT(0)
/* Control Register 3 */
#define SYV682X_BUSY BIT(7)
#define SYV682X_RVS_MASK BIT(3)
#define SYV682X_RST_REG BIT(0)
#define SYV682X_OVP_MASK 0x70
#define SYV682X_OVP_BIT_SHIFT 4
#define SYV682X_OVP_06_0 0
#define SYV682X_OVP_08_0 1
#define SYV682X_OVP_11_1 2
#define SYV682X_OVP_12_1 3
#define SYV682X_OVP_14_2 4
#define SYV682X_OVP_17_9 5
#define SYV682X_OVP_21_6 6
#define SYV682X_OVP_23_7 7
#define SYV682X_CONTROL_3_NONE 0
/* Control Register 4 */
#define SYV682X_CONTROL_4_CC1_BPS BIT(7)
#define SYV682X_CONTROL_4_CC2_BPS BIT(6)
#define SYV682X_CONTROL_4_VCONN1 BIT(5)
#define SYV682X_CONTROL_4_VCONN2 BIT(4)
#define SYV682X_CONTROL_4_VBAT_OVP BIT(3)
#define SYV682X_CONTROL_4_VCONN_OCP BIT(2)
#define SYV682X_CONTROL_4_CC_FRS BIT(1)
#define SYV682X_CONTROL_4_INT_MASK 0x0c
#define SYV682X_CONTROL_4_NONE 0
/**
* @brief Set the underlying interrupt conditions affecting the SYV682x
*
* @param emul SYV682x emulator
* @param status A status register value corresponding to the underlying
* conditions
* @param control_4 A control 4 register value corresponding to the underlying
* conditions; only the bits in SYV682X_CONTROL_4_INT_MASK have
* an effect.
*/
void syv682x_emul_set_condition(const struct emul *emul, uint8_t status,
uint8_t control_4);
/**
* @brief Cause CONTROL_3[BUSY] to be set for a number of reads. This bit
* signals that I2C writes will be ignored. Each call overrides any
* previous setting.
*
* @param emul SYV682x emulator
* @param reads The number of reads of CONTROL_3 to keep BUSY set for
*/
void syv682x_emul_set_busy_reads(const struct emul *emul, int reads);
/**
* @brief Set value of a register of SYV682x
*
* @param emul SYV682x emulator
* @param reg Register address
* @param val Value to write to the register
*
* @return 0 on success, error code on error
*/
int syv682x_emul_set_reg(const struct emul *emul, int reg, uint8_t val);
/**
* @brief Get value of a register of SYV682x
*
* @param emul SYV682x emulator
* @param reg Register address
* @param val Pointer at which to store current value of register
*
* @return 0 on success, error code on error
*/
int syv682x_emul_get_reg(const struct emul *emul, int reg, uint8_t *val);
/**
* @brief Returns pointer to i2c_common_emul_data for given emul
*
* @param emul Pointer to SYV682X emulator
* @return common_data Pointer to i2c_common_emul_data
*/
struct i2c_common_emul_data *
emul_syv682x_get_i2c_common_data(const struct emul *emul);
#endif /* __EMUL_SYV682X_H */
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