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
47enum 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 */
58struct 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
68static 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
73static 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
78static 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
83static 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
88bool max_contaminant_is_contaminant(struct max_tcpci_chip *chip, bool disconnect_while_debounce);
89
90#endif  // TCPCI_MAXIM_H_
91