/* SPDX-License-Identifier: GPL-2.0+ */ /* * Copyright 2022 Google, Inc * * MAXIM TCPC header file. */ #ifndef TCPCI_MAXIM_H_ #define TCPCI_MAXIM_H_ #define VENDOR_CC_STATUS2 0x85 #define CC1_VUFP_RD0P5 BIT(1) #define CC2_VUFP_RD0P5 BIT(5) #define TCPC_VENDOR_FLADC_STATUS 0x89 #define TCPC_VENDOR_CC_CTRL1 0x8c #define CCCONNDRY BIT(7) #define CCCOMPEN BIT(5) #define TCPC_VENDOR_CC_CTRL2 0x8d #define SBUOVPDIS BIT(7) #define CCOVPDIS BIT(6) #define SBURPCTRL BIT(5) #define CCLPMODESEL GENMASK(4, 3) #define ULTRA_LOW_POWER_MODE 1 #define CCRPCTRL GENMASK(2, 0) #define UA_1_SRC 1 #define UA_80_SRC 3 #define TCPC_VENDOR_CC_CTRL3 0x8e #define CCWTRDEB GENMASK(7, 6) #define CCWTRDEB_1MS 1 #define CCWTRSEL GENMASK(5, 3) #define CCWTRSEL_1V 0x4 #define CCLADDERDIS BIT(2) #define WTRCYCLE GENMASK(0, 0) #define WTRCYCLE_2_4_S 0 #define WTRCYCLE_4_8_S 1 #define TCPC_VENDOR_ADC_CTRL1 0x91 #define ADCINSEL GENMASK(7, 5) #define ADCEN BIT(0) enum contamiant_state { NOT_DETECTED, DETECTED, SINK, }; /* * @potential_contaminant: * Last returned result to tcpm indicating whether the TCPM port * has potential contaminant. */ struct max_tcpci_chip { struct tcpci_data data; struct tcpci *tcpci; struct device *dev; struct i2c_client *client; struct tcpm_port *port; enum contamiant_state contaminant_state; bool veto_vconn_swap; }; static inline int max_tcpci_read16(struct max_tcpci_chip *chip, unsigned int reg, u16 *val) { return regmap_raw_read(chip->data.regmap, reg, val, sizeof(u16)); } static inline int max_tcpci_write16(struct max_tcpci_chip *chip, unsigned int reg, u16 val) { return regmap_raw_write(chip->data.regmap, reg, &val, sizeof(u16)); } static inline int max_tcpci_read8(struct max_tcpci_chip *chip, unsigned int reg, u8 *val) { return regmap_raw_read(chip->data.regmap, reg, val, sizeof(u8)); } static inline int max_tcpci_write8(struct max_tcpci_chip *chip, unsigned int reg, u8 val) { return regmap_raw_write(chip->data.regmap, reg, &val, sizeof(u8)); } /** * max_contaminant_is_contaminant - Test if CC was toggled due to contaminant * * @chip: Handle to a struct max_tcpci_chip * @disconnect_while_debounce: Whether the disconnect was detected when CC * pins were debouncing * @cc_handled: Returns whether or not update to CC status was handled here * * Determine if a contaminant was detected. * * Returns: true if a contaminant was detected, false otherwise. cc_handled * is updated to reflect whether or not further CC handling is required. */ bool max_contaminant_is_contaminant(struct max_tcpci_chip *chip, bool disconnect_while_debounce, bool *cc_handled); #endif // TCPCI_MAXIM_H_