1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Copyright 2022 Google, Inc 4 * 5 * MAXIM TCPC header file. 6 */ 7 #ifndef TCPCI_MAXIM_H_ 8 #define TCPCI_MAXIM_H_ 9 10 #define VENDOR_CC_STATUS2 0x85 11 #define CC1_VUFP_RD0P5 BIT(1) 12 #define CC2_VUFP_RD0P5 BIT(5) 13 #define TCPC_VENDOR_FLADC_STATUS 0x89 14 15 #define TCPC_VENDOR_CC_CTRL1 0x8c 16 #define CCCONNDRY BIT(7) 17 #define CCCOMPEN BIT(5) 18 19 #define TCPC_VENDOR_CC_CTRL2 0x8d 20 #define SBUOVPDIS BIT(7) 21 #define CCOVPDIS BIT(6) 22 #define SBURPCTRL BIT(5) 23 #define CCLPMODESEL_MASK GENMASK(4, 3) 24 #define ULTRA_LOW_POWER_MODE BIT(3) 25 #define CCRPCTRL_MASK GENMASK(2, 0) 26 #define UA_1_SRC 1 27 #define UA_80_SRC 3 28 29 #define TCPC_VENDOR_CC_CTRL3 0x8e 30 #define CCWTRDEB_MASK GENMASK(7, 6) 31 #define CCWTRDEB_SHIFT 6 32 #define CCWTRDEB_1MS 1 33 #define CCWTRSEL_MASK GENMASK(5, 3) 34 #define CCWTRSEL_SHIFT 3 35 #define CCWTRSEL_1V 0x4 36 #define CCLADDERDIS BIT(2) 37 #define WTRCYCLE_MASK BIT(0) 38 #define WTRCYCLE_SHIFT 0 39 #define WTRCYCLE_2_4_S 0 40 #define WTRCYCLE_4_8_S 1 41 42 #define TCPC_VENDOR_ADC_CTRL1 0x91 43 #define ADCINSEL_MASK GENMASK(7, 5) 44 #define ADC_CHANNEL_OFFSET 5 45 #define ADCEN BIT(0) 46 47 enum contamiant_state { 48 NOT_DETECTED, 49 DETECTED, 50 SINK, 51 }; 52 53 /* 54 * @potential_contaminant: 55 * Last returned result to tcpm indicating whether the TCPM port 56 * has potential contaminant. 57 */ 58 struct max_tcpci_chip { 59 struct tcpci_data data; 60 struct tcpci *tcpci; 61 struct device *dev; 62 struct i2c_client *client; 63 struct tcpm_port *port; 64 enum contamiant_state contaminant_state; 65 bool veto_vconn_swap; 66 }; 67 68 static inline int max_tcpci_read16(struct max_tcpci_chip *chip, unsigned int reg, u16 *val) 69 { 70 return regmap_raw_read(chip->data.regmap, reg, val, sizeof(u16)); 71 } 72 73 static inline int max_tcpci_write16(struct max_tcpci_chip *chip, unsigned int reg, u16 val) 74 { 75 return regmap_raw_write(chip->data.regmap, reg, &val, sizeof(u16)); 76 } 77 78 static inline int max_tcpci_read8(struct max_tcpci_chip *chip, unsigned int reg, u8 *val) 79 { 80 return regmap_raw_read(chip->data.regmap, reg, val, sizeof(u8)); 81 } 82 83 static inline int max_tcpci_write8(struct max_tcpci_chip *chip, unsigned int reg, u8 val) 84 { 85 return regmap_raw_write(chip->data.regmap, reg, &val, sizeof(u8)); 86 } 87 88 bool max_contaminant_is_contaminant(struct max_tcpci_chip *chip, bool disconnect_while_debounce); 89 90 #endif // TCPCI_MAXIM_H_ 91