| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Heikki Krogerus | 1362 | 99.05% | 3 | 50.00% |
| Ajay Gupta | 9 | 0.65% | 1 | 16.67% |
| Arnd Bergmann | 3 | 0.22% | 1 | 16.67% |
| Greg Kroah-Hartman | 1 | 0.07% | 1 | 16.67% |
| Total | 1375 | 6 |
/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __DRIVER_USB_TYPEC_UCSI_H #define __DRIVER_USB_TYPEC_UCSI_H #include <linux/bitops.h> #include <linux/device.h> #include <linux/types.h> #include <linux/usb/typec.h> /* -------------------------------------------------------------------------- */ /* Command Status and Connector Change Indication (CCI) data structure */ struct ucsi_cci { u8:1; /* reserved */ u8 connector_change:7; u8 data_length; u16:9; /* reserved */ u16 not_supported:1; u16 cancel_complete:1; u16 reset_complete:1; u16 busy:1; u16 ack_complete:1; u16 error:1; u16 cmd_complete:1; } __packed; /* Default fields in CONTROL data structure */ struct ucsi_command { u8 cmd; u8 length; u64 data:48; } __packed; /* ACK Command structure */ struct ucsi_ack_cmd { u8 cmd; u8 length; u8 cci_ack:1; u8 cmd_ack:1; u8:6; /* reserved */ } __packed; /* Connector Reset Command structure */ struct ucsi_con_rst { u8 cmd; u8 length; u8 con_num:7; u8 hard_reset:1; } __packed; /* Set USB Operation Mode Command structure */ struct ucsi_uor_cmd { u8 cmd; u8 length; u16 con_num:7; u16 role:3; #define UCSI_UOR_ROLE_DFP BIT(0) #define UCSI_UOR_ROLE_UFP BIT(1) #define UCSI_UOR_ROLE_DRP BIT(2) u16:6; /* reserved */ } __packed; /* Get Alternate Modes Command structure */ struct ucsi_altmode_cmd { u8 cmd; u8 length; u8 recipient; #define UCSI_RECIPIENT_CON 0 #define UCSI_RECIPIENT_SOP 1 #define UCSI_RECIPIENT_SOP_P 2 #define UCSI_RECIPIENT_SOP_PP 3 u8 con_num; u8 offset; u8 num_altmodes; } __packed; struct ucsi_control { union { u64 raw_cmd; struct ucsi_command cmd; struct ucsi_uor_cmd uor; struct ucsi_ack_cmd ack; struct ucsi_con_rst con_rst; struct ucsi_altmode_cmd alt; }; }; #define __UCSI_CMD(_ctrl_, _cmd_) \ { \ (_ctrl_).raw_cmd = 0; \ (_ctrl_).cmd.cmd = _cmd_; \ } /* Helper for preparing ucsi_control for CONNECTOR_RESET command. */ #define UCSI_CMD_CONNECTOR_RESET(_ctrl_, _con_, _hard_) \ { \ __UCSI_CMD(_ctrl_, UCSI_CONNECTOR_RESET) \ (_ctrl_).con_rst.con_num = (_con_)->num; \ (_ctrl_).con_rst.hard_reset = _hard_; \ } /* Helper for preparing ucsi_control for ACK_CC_CI command. */ #define UCSI_CMD_ACK(_ctrl_, _ack_) \ { \ __UCSI_CMD(_ctrl_, UCSI_ACK_CC_CI) \ (_ctrl_).ack.cci_ack = ((_ack_) == UCSI_ACK_EVENT); \ (_ctrl_).ack.cmd_ack = ((_ack_) == UCSI_ACK_CMD); \ } /* Helper for preparing ucsi_control for SET_NOTIFY_ENABLE command. */ #define UCSI_CMD_SET_NTFY_ENABLE(_ctrl_, _ntfys_) \ { \ __UCSI_CMD(_ctrl_, UCSI_SET_NOTIFICATION_ENABLE) \ (_ctrl_).cmd.data = _ntfys_; \ } /* Helper for preparing ucsi_control for GET_CAPABILITY command. */ #define UCSI_CMD_GET_CAPABILITY(_ctrl_) \ { \ __UCSI_CMD(_ctrl_, UCSI_GET_CAPABILITY) \ } /* Helper for preparing ucsi_control for GET_CONNECTOR_CAPABILITY command. */ #define UCSI_CMD_GET_CONNECTOR_CAPABILITY(_ctrl_, _con_) \ { \ __UCSI_CMD(_ctrl_, UCSI_GET_CONNECTOR_CAPABILITY) \ (_ctrl_).cmd.data = _con_; \ } /* Helper for preparing ucsi_control for GET_ALTERNATE_MODES command. */ #define UCSI_CMD_GET_ALTERNATE_MODES(_ctrl_, _r_, _con_num_, _o_, _num_)\ { \ __UCSI_CMD((_ctrl_), UCSI_GET_ALTERNATE_MODES) \ _ctrl_.alt.recipient = (_r_); \ _ctrl_.alt.con_num = (_con_num_); \ _ctrl_.alt.offset = (_o_); \ _ctrl_.alt.num_altmodes = (_num_) - 1; \ } /* Helper for preparing ucsi_control for GET_CAM_SUPPORTED command. */ #define UCSI_CMD_GET_CAM_SUPPORTED(_ctrl_, _con_) \ { \ __UCSI_CMD((_ctrl_), UCSI_GET_CAM_SUPPORTED) \ _ctrl_.cmd.data = (_con_); \ } /* Helper for preparing ucsi_control for GET_CAM_SUPPORTED command. */ #define UCSI_CMD_GET_CURRENT_CAM(_ctrl_, _con_) \ { \ __UCSI_CMD((_ctrl_), UCSI_GET_CURRENT_CAM) \ _ctrl_.cmd.data = (_con_); \ } /* Helper for preparing ucsi_control for GET_CONNECTOR_STATUS command. */ #define UCSI_CMD_GET_CONNECTOR_STATUS(_ctrl_, _con_) \ { \ __UCSI_CMD(_ctrl_, UCSI_GET_CONNECTOR_STATUS) \ (_ctrl_).cmd.data = _con_; \ } #define __UCSI_ROLE(_ctrl_, _cmd_, _con_num_) \ { \ __UCSI_CMD(_ctrl_, _cmd_) \ (_ctrl_).uor.con_num = _con_num_; \ (_ctrl_).uor.role = UCSI_UOR_ROLE_DRP; \ } /* Helper for preparing ucsi_control for SET_UOR command. */ #define UCSI_CMD_SET_UOR(_ctrl_, _con_, _role_) \ { \ __UCSI_ROLE(_ctrl_, UCSI_SET_UOR, (_con_)->num) \ (_ctrl_).uor.role |= (_role_) == TYPEC_HOST ? UCSI_UOR_ROLE_DFP : \ UCSI_UOR_ROLE_UFP; \ } /* Helper for preparing ucsi_control for SET_PDR command. */ #define UCSI_CMD_SET_PDR(_ctrl_, _con_, _role_) \ { \ __UCSI_ROLE(_ctrl_, UCSI_SET_PDR, (_con_)->num) \ (_ctrl_).uor.role |= (_role_) == TYPEC_SOURCE ? UCSI_UOR_ROLE_DFP : \ UCSI_UOR_ROLE_UFP; \ } /* Commands */ #define UCSI_PPM_RESET 0x01 #define UCSI_CANCEL 0x02 #define UCSI_CONNECTOR_RESET 0x03 #define UCSI_ACK_CC_CI 0x04 #define UCSI_SET_NOTIFICATION_ENABLE 0x05 #define UCSI_GET_CAPABILITY 0x06 #define UCSI_GET_CONNECTOR_CAPABILITY 0x07 #define UCSI_SET_UOM 0x08 #define UCSI_SET_UOR 0x09 #define UCSI_SET_PDM 0x0a #define UCSI_SET_PDR 0x0b #define UCSI_GET_ALTERNATE_MODES 0x0c #define UCSI_GET_CAM_SUPPORTED 0x0d #define UCSI_GET_CURRENT_CAM 0x0e #define UCSI_SET_NEW_CAM 0x0f #define UCSI_GET_PDOS 0x10 #define UCSI_GET_CABLE_PROPERTY 0x11 #define UCSI_GET_CONNECTOR_STATUS 0x12 #define UCSI_GET_ERROR_STATUS 0x13 /* ACK_CC_CI commands */ #define UCSI_ACK_EVENT 1 #define UCSI_ACK_CMD 2 /* Bits for SET_NOTIFICATION_ENABLE command */ #define UCSI_ENABLE_NTFY_CMD_COMPLETE BIT(0) #define UCSI_ENABLE_NTFY_EXT_PWR_SRC_CHANGE BIT(1) #define UCSI_ENABLE_NTFY_PWR_OPMODE_CHANGE BIT(2) #define UCSI_ENABLE_NTFY_CAP_CHANGE BIT(5) #define UCSI_ENABLE_NTFY_PWR_LEVEL_CHANGE BIT(6) #define UCSI_ENABLE_NTFY_PD_RESET_COMPLETE BIT(7) #define UCSI_ENABLE_NTFY_CAM_CHANGE BIT(8) #define UCSI_ENABLE_NTFY_BAT_STATUS_CHANGE BIT(9) #define UCSI_ENABLE_NTFY_PARTNER_CHANGE BIT(11) #define UCSI_ENABLE_NTFY_PWR_DIR_CHANGE BIT(12) #define UCSI_ENABLE_NTFY_CONNECTOR_CHANGE BIT(14) #define UCSI_ENABLE_NTFY_ERROR BIT(15) #define UCSI_ENABLE_NTFY_ALL 0xdbe7 /* Error information returned by PPM in response to GET_ERROR_STATUS command. */ #define UCSI_ERROR_UNREGONIZED_CMD BIT(0) #define UCSI_ERROR_INVALID_CON_NUM BIT(1) #define UCSI_ERROR_INVALID_CMD_ARGUMENT BIT(2) #define UCSI_ERROR_INCOMPATIBLE_PARTNER BIT(3) #define UCSI_ERROR_CC_COMMUNICATION_ERR BIT(4) #define UCSI_ERROR_DEAD_BATTERY BIT(5) #define UCSI_ERROR_CONTRACT_NEGOTIATION_FAIL BIT(6) /* Data structure filled by PPM in response to GET_CAPABILITY command. */ struct ucsi_capability { u32 attributes; #define UCSI_CAP_ATTR_DISABLE_STATE BIT(0) #define UCSI_CAP_ATTR_BATTERY_CHARGING BIT(1) #define UCSI_CAP_ATTR_USB_PD BIT(2) #define UCSI_CAP_ATTR_TYPEC_CURRENT BIT(6) #define UCSI_CAP_ATTR_POWER_AC_SUPPLY BIT(8) #define UCSI_CAP_ATTR_POWER_OTHER BIT(10) #define UCSI_CAP_ATTR_POWER_VBUS BIT(14) u32 num_connectors:8; u32 features:24; #define UCSI_CAP_SET_UOM BIT(0) #define UCSI_CAP_SET_PDM BIT(1) #define UCSI_CAP_ALT_MODE_DETAILS BIT(2) #define UCSI_CAP_ALT_MODE_OVERRIDE BIT(3) #define UCSI_CAP_PDO_DETAILS BIT(4) #define UCSI_CAP_CABLE_DETAILS BIT(5) #define UCSI_CAP_EXT_SUPPLY_NOTIFICATIONS BIT(6) #define UCSI_CAP_PD_RESET BIT(7) u8 num_alt_modes; u8 reserved; u16 bc_version; u16 pd_version; u16 typec_version; } __packed; /* Data structure filled by PPM in response to GET_CONNECTOR_CAPABILITY cmd. */ struct ucsi_connector_capability { u8 op_mode; #define UCSI_CONCAP_OPMODE_DFP BIT(0) #define UCSI_CONCAP_OPMODE_UFP BIT(1) #define UCSI_CONCAP_OPMODE_DRP BIT(2) #define UCSI_CONCAP_OPMODE_AUDIO_ACCESSORY BIT(3) #define UCSI_CONCAP_OPMODE_DEBUG_ACCESSORY BIT(4) #define UCSI_CONCAP_OPMODE_USB2 BIT(5) #define UCSI_CONCAP_OPMODE_USB3 BIT(6) #define UCSI_CONCAP_OPMODE_ALT_MODE BIT(7) u8 provider:1; u8 consumer:1; u8:6; /* reserved */ } __packed; struct ucsi_altmode { u16 svid; u32 mid; } __packed; /* Data structure filled by PPM in response to GET_CABLE_PROPERTY command. */ struct ucsi_cable_property { u16 speed_supported; u8 current_capability; u8 vbus_in_cable:1; u8 active_cable:1; u8 directionality:1; u8 plug_type:2; #define UCSI_CABLE_PROPERTY_PLUG_TYPE_A 0 #define UCSI_CABLE_PROPERTY_PLUG_TYPE_B 1 #define UCSI_CABLE_PROPERTY_PLUG_TYPE_C 2 #define UCSI_CABLE_PROPERTY_PLUG_OTHER 3 u8 mode_support:1; u8:2; /* reserved */ u8 latency:4; u8:4; /* reserved */ } __packed; /* Data structure filled by PPM in response to GET_CONNECTOR_STATUS command. */ struct ucsi_connector_status { u16 change; #define UCSI_CONSTAT_EXT_SUPPLY_CHANGE BIT(1) #define UCSI_CONSTAT_POWER_OPMODE_CHANGE BIT(2) #define UCSI_CONSTAT_PDOS_CHANGE BIT(5) #define UCSI_CONSTAT_POWER_LEVEL_CHANGE BIT(6) #define UCSI_CONSTAT_PD_RESET_COMPLETE BIT(7) #define UCSI_CONSTAT_CAM_CHANGE BIT(8) #define UCSI_CONSTAT_BC_CHANGE BIT(9) #define UCSI_CONSTAT_PARTNER_CHANGE BIT(11) #define UCSI_CONSTAT_POWER_DIR_CHANGE BIT(12) #define UCSI_CONSTAT_CONNECT_CHANGE BIT(14) #define UCSI_CONSTAT_ERROR BIT(15) u16 pwr_op_mode:3; #define UCSI_CONSTAT_PWR_OPMODE_NONE 0 #define UCSI_CONSTAT_PWR_OPMODE_DEFAULT 1 #define UCSI_CONSTAT_PWR_OPMODE_BC 2 #define UCSI_CONSTAT_PWR_OPMODE_PD 3 #define UCSI_CONSTAT_PWR_OPMODE_TYPEC1_5 4 #define UCSI_CONSTAT_PWR_OPMODE_TYPEC3_0 5 u16 connected:1; u16 pwr_dir:1; u16 partner_flags:8; #define UCSI_CONSTAT_PARTNER_FLAG_USB BIT(0) #define UCSI_CONSTAT_PARTNER_FLAG_ALT_MODE BIT(1) u16 partner_type:3; #define UCSI_CONSTAT_PARTNER_TYPE_DFP 1 #define UCSI_CONSTAT_PARTNER_TYPE_UFP 2 #define UCSI_CONSTAT_PARTNER_TYPE_CABLE 3 /* Powered Cable */ #define UCSI_CONSTAT_PARTNER_TYPE_CABLE_AND_UFP 4 /* Powered Cable */ #define UCSI_CONSTAT_PARTNER_TYPE_DEBUG 5 #define UCSI_CONSTAT_PARTNER_TYPE_AUDIO 6 u32 request_data_obj; u8 bc_status:2; #define UCSI_CONSTAT_BC_NOT_CHARGING 0 #define UCSI_CONSTAT_BC_NOMINAL_CHARGING 1 #define UCSI_CONSTAT_BC_SLOW_CHARGING 2 #define UCSI_CONSTAT_BC_TRICKLE_CHARGING 3 u8 provider_cap_limit_reason:4; #define UCSI_CONSTAT_CAP_PWR_LOWERED 0 #define UCSI_CONSTAT_CAP_PWR_BUDGET_LIMIT 1 u8:2; /* reserved */ } __packed; /* -------------------------------------------------------------------------- */ struct ucsi; struct ucsi_data { u16 version; u16 reserved; union { u32 raw_cci; struct ucsi_cci cci; }; struct ucsi_control ctrl; u32 message_in[4]; u32 message_out[4]; } __packed; /* * struct ucsi_ppm - Interface to UCSI Platform Policy Manager * @data: memory location to the UCSI data structures * @cmd: UCSI command execution routine * @sync: Refresh UCSI mailbox (the data structures) */ struct ucsi_ppm { struct ucsi_data *data; int (*cmd)(struct ucsi_ppm *, struct ucsi_control *); int (*sync)(struct ucsi_ppm *); }; struct ucsi *ucsi_register_ppm(struct device *dev, struct ucsi_ppm *ppm); void ucsi_unregister_ppm(struct ucsi *ucsi); void ucsi_notify(struct ucsi *ucsi); /* -------------------------------------------------------------------------- */ enum ucsi_status { UCSI_IDLE = 0, UCSI_BUSY, UCSI_ERROR, }; struct ucsi { struct device *dev; struct ucsi_ppm *ppm; enum ucsi_status status; struct completion complete; struct ucsi_capability cap; struct ucsi_connector *connector; struct work_struct work; /* PPM Communication lock */ struct mutex ppm_lock; /* PPM communication flags */ unsigned long flags; #define EVENT_PENDING 0 #define COMMAND_PENDING 1 #define ACK_PENDING 2 }; #define UCSI_MAX_SVID 5 #define UCSI_MAX_ALTMODES (UCSI_MAX_SVID * 6) struct ucsi_connector { int num; struct ucsi *ucsi; struct mutex lock; /* port lock */ struct work_struct work; struct completion complete; struct typec_port *port; struct typec_partner *partner; struct typec_altmode *port_altmode[UCSI_MAX_ALTMODES]; struct typec_altmode *partner_altmode[UCSI_MAX_ALTMODES]; struct typec_capability typec_cap; struct ucsi_connector_status status; struct ucsi_connector_capability cap; }; int ucsi_send_command(struct ucsi *ucsi, struct ucsi_control *ctrl, void *retval, size_t size); void ucsi_altmode_update_active(struct ucsi_connector *con); int ucsi_resume(struct ucsi *ucsi); #if IS_ENABLED(CONFIG_TYPEC_DP_ALTMODE) struct typec_altmode * ucsi_register_displayport(struct ucsi_connector *con, bool override, int offset, struct typec_altmode_desc *desc); void ucsi_displayport_remove_partner(struct typec_altmode *adev); #else static inline struct typec_altmode * ucsi_register_displayport(struct ucsi_connector *con, bool override, int offset, struct typec_altmode_desc *desc) { return NULL; } static inline void ucsi_displayport_remove_partner(struct typec_altmode *adev) { } #endif /* CONFIG_TYPEC_DP_ALTMODE */ #endif /* __DRIVER_USB_TYPEC_UCSI_H */
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