| Sebastian Reichel | 3dd2332 | 2024-10-15 17:26:43 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 2 | /* |
| 3 | * Copyright 2015-2017 Google, Inc |
| 4 | * Copyright 2024 Collabora |
| 5 | */ |
| 6 | |
| 7 | #ifndef __LINUX_USB_TCPM_H |
| 8 | #define __LINUX_USB_TCPM_H |
| 9 | |
| 10 | #include <dm/of.h> |
| 11 | #include <linux/bitops.h> |
| 12 | #include "pd.h" |
| 13 | |
| 14 | enum typec_orientation { |
| 15 | TYPEC_ORIENTATION_NONE, |
| 16 | TYPEC_ORIENTATION_NORMAL, |
| 17 | TYPEC_ORIENTATION_REVERSE, |
| 18 | }; |
| 19 | |
| 20 | enum typec_cc_status { |
| 21 | TYPEC_CC_OPEN, |
| 22 | TYPEC_CC_RA, |
| 23 | TYPEC_CC_RD, |
| 24 | TYPEC_CC_RP_DEF, |
| 25 | TYPEC_CC_RP_1_5, |
| 26 | TYPEC_CC_RP_3_0, |
| 27 | }; |
| 28 | |
| 29 | enum typec_cc_polarity { |
| 30 | TYPEC_POLARITY_CC1, |
| 31 | TYPEC_POLARITY_CC2, |
| 32 | }; |
| 33 | |
| 34 | enum tcpm_transmit_status { |
| 35 | TCPC_TX_SUCCESS = 0, |
| 36 | TCPC_TX_DISCARDED = 1, |
| 37 | TCPC_TX_FAILED = 2, |
| 38 | }; |
| 39 | |
| 40 | enum tcpm_transmit_type { |
| 41 | TCPC_TX_SOP = 0, |
| 42 | TCPC_TX_SOP_PRIME = 1, |
| 43 | TCPC_TX_SOP_PRIME_PRIME = 2, |
| 44 | TCPC_TX_SOP_DEBUG_PRIME = 3, |
| 45 | TCPC_TX_SOP_DEBUG_PRIME_PRIME = 4, |
| 46 | TCPC_TX_HARD_RESET = 5, |
| 47 | TCPC_TX_CABLE_RESET = 6, |
| 48 | TCPC_TX_BIST_MODE_2 = 7 |
| 49 | }; |
| 50 | |
| 51 | struct dm_tcpm_ops { |
| 52 | int (*get_connector_node)(struct udevice *dev, ofnode *connector_node); |
| 53 | int (*init)(struct udevice *dev); |
| 54 | int (*get_vbus)(struct udevice *dev); |
| 55 | int (*set_cc)(struct udevice *dev, enum typec_cc_status cc); |
| 56 | int (*get_cc)(struct udevice *dev, enum typec_cc_status *cc1, |
| 57 | enum typec_cc_status *cc2); |
| 58 | int (*set_polarity)(struct udevice *dev, |
| 59 | enum typec_cc_polarity polarity); |
| 60 | int (*set_vconn)(struct udevice *dev, bool on); |
| 61 | int (*set_vbus)(struct udevice *dev, bool on, bool charge); |
| 62 | int (*set_pd_rx)(struct udevice *dev, bool on); |
| 63 | int (*set_roles)(struct udevice *dev, bool attached, |
| 64 | enum typec_role role, enum typec_data_role data); |
| 65 | int (*start_toggling)(struct udevice *dev, |
| 66 | enum typec_port_type port_type, |
| 67 | enum typec_cc_status cc); |
| 68 | int (*pd_transmit)(struct udevice *dev, enum tcpm_transmit_type type, |
| 69 | const struct pd_message *msg, unsigned int negotiated_rev); |
| 70 | void (*poll_event)(struct udevice *dev); |
| 71 | int (*enter_low_power_mode)(struct udevice *dev, bool attached, bool pd_capable); |
| 72 | }; |
| 73 | |
| 74 | /* API for drivers */ |
| 75 | void tcpm_vbus_change(struct udevice *dev); |
| 76 | void tcpm_cc_change(struct udevice *dev); |
| 77 | void tcpm_pd_receive(struct udevice *dev, const struct pd_message *msg); |
| 78 | void tcpm_pd_transmit_complete(struct udevice *dev, |
| 79 | enum tcpm_transmit_status status); |
| 80 | void tcpm_pd_hard_reset(struct udevice *dev); |
| 81 | |
| 82 | /* API for boards */ |
| 83 | extern const char * const typec_pd_rev_name[]; |
| 84 | extern const char * const typec_orientation_name[]; |
| 85 | extern const char * const typec_role_name[]; |
| 86 | extern const char * const typec_data_role_name[]; |
| 87 | extern const char * const typec_cc_status_name[]; |
| 88 | |
| 89 | int tcpm_get(int index, struct udevice **devp); |
| 90 | int tcpm_get_pd_rev(struct udevice *dev); |
| 91 | int tcpm_get_current(struct udevice *dev); |
| 92 | int tcpm_get_voltage(struct udevice *dev); |
| 93 | enum typec_orientation tcpm_get_orientation(struct udevice *dev); |
| 94 | enum typec_role tcpm_get_pwr_role(struct udevice *dev); |
| 95 | enum typec_data_role tcpm_get_data_role(struct udevice *dev); |
| 96 | bool tcpm_is_connected(struct udevice *dev); |
| 97 | const char *tcpm_get_state(struct udevice *dev); |
| 98 | |
| 99 | #endif /* __LINUX_USB_TCPM_H */ |