| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Heikki Krogerus | 1257 | 78.81% | 13 | 46.43% |
| Saranya Gopal | 119 | 7.46% | 2 | 7.14% |
| Abhilash K V | 88 | 5.52% | 3 | 10.71% |
| Ajay Gupta | 88 | 5.52% | 4 | 14.29% |
| Linyu Yuan | 16 | 1.00% | 1 | 3.57% |
| Jack Pham | 15 | 0.94% | 2 | 7.14% |
| Mayank Rana | 8 | 0.50% | 1 | 3.57% |
| Arnd Bergmann | 3 | 0.19% | 1 | 3.57% |
| Greg Kroah-Hartman | 1 | 0.06% | 1 | 3.57% |
| Total | 1595 | 28 |
/* 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/power_supply.h> #include <linux/types.h> #include <linux/usb/typec.h> #include <linux/usb/pd.h> #include <linux/usb/role.h> /* -------------------------------------------------------------------------- */ struct ucsi; struct ucsi_altmode; struct dentry; /* UCSI offsets (Bytes) */ #define UCSI_VERSION 0 #define UCSI_CCI 4 #define UCSI_CONTROL 8 #define UCSI_MESSAGE_IN 16 #define UCSI_MESSAGE_OUT 32 /* Command Status and Connector Change Indication (CCI) bits */ #define UCSI_CCI_CONNECTOR(_c_) (((_c_) & GENMASK(7, 1)) >> 1) #define UCSI_CCI_LENGTH(_c_) (((_c_) & GENMASK(15, 8)) >> 8) #define UCSI_CCI_NOT_SUPPORTED BIT(25) #define UCSI_CCI_CANCEL_COMPLETE BIT(26) #define UCSI_CCI_RESET_COMPLETE BIT(27) #define UCSI_CCI_BUSY BIT(28) #define UCSI_CCI_ACK_COMPLETE BIT(29) #define UCSI_CCI_ERROR BIT(30) #define UCSI_CCI_COMMAND_COMPLETE BIT(31) /** * struct ucsi_operations - UCSI I/O operations * @read: Read operation * @sync_write: Blocking write operation * @async_write: Non-blocking write operation * @update_altmodes: Squashes duplicate DP altmodes * * Read and write routines for UCSI interface. @sync_write must wait for the * Command Completion Event from the PPM before returning, and @async_write must * return immediately after sending the data to the PPM. */ struct ucsi_operations { int (*read)(struct ucsi *ucsi, unsigned int offset, void *val, size_t val_len); int (*sync_write)(struct ucsi *ucsi, unsigned int offset, const void *val, size_t val_len); int (*async_write)(struct ucsi *ucsi, unsigned int offset, const void *val, size_t val_len); bool (*update_altmodes)(struct ucsi *ucsi, struct ucsi_altmode *orig, struct ucsi_altmode *updated); }; struct ucsi *ucsi_create(struct device *dev, const struct ucsi_operations *ops); void ucsi_destroy(struct ucsi *ucsi); int ucsi_register(struct ucsi *ucsi); void ucsi_unregister(struct ucsi *ucsi); void *ucsi_get_drvdata(struct ucsi *ucsi); void ucsi_set_drvdata(struct ucsi *ucsi, void *data); void ucsi_connector_change(struct ucsi *ucsi, u8 num); /* -------------------------------------------------------------------------- */ /* 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 #define UCSI_CONNECTOR_NUMBER(_num_) ((u64)(_num_) << 16) #define UCSI_COMMAND(_cmd_) ((_cmd_) & 0xff) /* CONNECTOR_RESET command bits */ #define UCSI_CONNECTOR_RESET_HARD BIT(23) /* Deprecated in v1.1 */ /* ACK_CC_CI bits */ #define UCSI_ACK_CONNECTOR_CHANGE BIT(16) #define UCSI_ACK_COMMAND_COMPLETE BIT(17) /* SET_NOTIFICATION_ENABLE command bits */ #define UCSI_ENABLE_NTFY_CMD_COMPLETE BIT(16) #define UCSI_ENABLE_NTFY_EXT_PWR_SRC_CHANGE BIT(17) #define UCSI_ENABLE_NTFY_PWR_OPMODE_CHANGE BIT(18) #define UCSI_ENABLE_NTFY_CAP_CHANGE BIT(21) #define UCSI_ENABLE_NTFY_PWR_LEVEL_CHANGE BIT(22) #define UCSI_ENABLE_NTFY_PD_RESET_COMPLETE BIT(23) #define UCSI_ENABLE_NTFY_CAM_CHANGE BIT(24) #define UCSI_ENABLE_NTFY_BAT_STATUS_CHANGE BIT(25) #define UCSI_ENABLE_NTFY_PARTNER_CHANGE BIT(27) #define UCSI_ENABLE_NTFY_PWR_DIR_CHANGE BIT(28) #define UCSI_ENABLE_NTFY_CONNECTOR_CHANGE BIT(30) #define UCSI_ENABLE_NTFY_ERROR BIT(31) #define UCSI_ENABLE_NTFY_ALL 0xdbe70000 /* SET_UOR command bits */ #define UCSI_SET_UOR_ROLE(_r_) (((_r_) == TYPEC_HOST ? 1 : 2) << 23) #define UCSI_SET_UOR_ACCEPT_ROLE_SWAPS BIT(25) /* SET_PDF command bits */ #define UCSI_SET_PDR_ROLE(_r_) (((_r_) == TYPEC_SOURCE ? 1 : 2) << 23) #define UCSI_SET_PDR_ACCEPT_ROLE_SWAPS BIT(25) /* GET_ALTERNATE_MODES command bits */ #define UCSI_ALTMODE_RECIPIENT(_r_) (((_r_) >> 16) & 0x7) #define UCSI_GET_ALTMODE_RECIPIENT(_r_) ((u64)(_r_) << 16) #define UCSI_RECIPIENT_CON 0 #define UCSI_RECIPIENT_SOP 1 #define UCSI_RECIPIENT_SOP_P 2 #define UCSI_RECIPIENT_SOP_PP 3 #define UCSI_GET_ALTMODE_CONNECTOR_NUMBER(_r_) ((u64)(_r_) << 24) #define UCSI_ALTMODE_OFFSET(_r_) (((_r_) >> 32) & 0xff) #define UCSI_GET_ALTMODE_OFFSET(_r_) ((u64)(_r_) << 32) #define UCSI_GET_ALTMODE_NUM_ALTMODES(_r_) ((u64)(_r_) << 40) /* GET_PDOS command bits */ #define UCSI_GET_PDOS_PARTNER_PDO(_r_) ((u64)(_r_) << 23) #define UCSI_GET_PDOS_PDO_OFFSET(_r_) ((u64)(_r_) << 24) #define UCSI_GET_PDOS_NUM_PDOS(_r_) ((u64)(_r_) << 32) #define UCSI_MAX_PDOS (4) #define UCSI_GET_PDOS_SRC_PDOS ((u64)1 << 34) /* -------------------------------------------------------------------------- */ /* 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) #define UCSI_ERROR_OVERCURRENT BIT(7) #define UCSI_ERROR_UNDEFINED BIT(8) #define UCSI_ERROR_PARTNER_REJECTED_SWAP BIT(9) #define UCSI_ERROR_HARD_RESET BIT(10) #define UCSI_ERROR_PPM_POLICY_CONFLICT BIT(11) #define UCSI_ERROR_SWAP_REJECTED BIT(12) #define UCSI_SET_NEW_CAM_ENTER(x) (((x) >> 23) & 0x1) #define UCSI_SET_NEW_CAM_GET_AM(x) (((x) >> 24) & 0xff) #define UCSI_SET_NEW_CAM_AM_MASK (0xff << 24) #define UCSI_SET_NEW_CAM_SET_AM(x) (((x) & 0xff) << 24) #define UCSI_CMD_CONNECTOR_MASK (0x7) /* 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) u8 num_connectors; u8 features; #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) u16 reserved_1; u8 num_alt_modes; u8 reserved_2; 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 flags; #define UCSI_CONCAP_FLAG_PROVIDER BIT(0) #define UCSI_CONCAP_FLAG_CONSUMER BIT(1) } __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 flags; #define UCSI_CABLE_PROP_FLAG_VBUS_IN_CABLE BIT(0) #define UCSI_CABLE_PROP_FLAG_ACTIVE_CABLE BIT(1) #define UCSI_CABLE_PROP_FLAG_DIRECTIONALITY BIT(2) #define UCSI_CABLE_PROP_FLAG_PLUG_TYPE(_f_) ((_f_) & GENMASK(3, 0)) #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 #define UCSI_CABLE_PROP_MODE_SUPPORT BIT(5) u8 latency; } __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 flags; #define UCSI_CONSTAT_PWR_OPMODE(_f_) ((_f_) & GENMASK(2, 0)) #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 #define UCSI_CONSTAT_CONNECTED BIT(3) #define UCSI_CONSTAT_PWR_DIR BIT(4) #define UCSI_CONSTAT_PARTNER_FLAGS(_f_) (((_f_) & GENMASK(12, 5)) >> 5) #define UCSI_CONSTAT_PARTNER_FLAG_USB 1 #define UCSI_CONSTAT_PARTNER_FLAG_ALT_MODE 2 #define UCSI_CONSTAT_PARTNER_TYPE(_f_) (((_f_) & GENMASK(15, 13)) >> 13) #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 pwr_status; #define UCSI_CONSTAT_BC_STATUS(_p_) ((_p_) & GENMASK(2, 0)) #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 #define UCSI_CONSTAT_PROVIDER_CAP_LIMIT(_p_) (((_p_) & GENMASK(6, 3)) >> 3) #define UCSI_CONSTAT_CAP_PWR_LOWERED 0 #define UCSI_CONSTAT_CAP_PWR_BUDGET_LIMIT 1 } __packed; /* -------------------------------------------------------------------------- */ struct ucsi_debugfs_entry { u64 command; struct ucsi_data { u64 low; u64 high; } response; u32 status; struct dentry *dentry; }; struct ucsi { u16 version; struct device *dev; struct driver_data *driver_data; const struct ucsi_operations *ops; struct ucsi_capability cap; struct ucsi_connector *connector; struct ucsi_debugfs_entry *debugfs; struct work_struct resume_work; struct delayed_work work; int work_count; #define UCSI_ROLE_SWITCH_RETRY_PER_HZ 10 #define UCSI_ROLE_SWITCH_INTERVAL (HZ / UCSI_ROLE_SWITCH_RETRY_PER_HZ) #define UCSI_ROLE_SWITCH_WAIT_COUNT (10 * UCSI_ROLE_SWITCH_RETRY_PER_HZ) /* PPM Communication lock */ struct mutex ppm_lock; /* The latest "Notification Enable" bits (SET_NOTIFICATION_ENABLE) */ u64 ntfy; /* 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) #define UCSI_TYPEC_VSAFE5V 5000 #define UCSI_TYPEC_1_5_CURRENT 1500 #define UCSI_TYPEC_3_0_CURRENT 3000 struct ucsi_connector { int num; struct ucsi *ucsi; struct mutex lock; /* port lock */ struct work_struct work; struct completion complete; struct workqueue_struct *wq; struct list_head partner_tasks; 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; struct power_supply *psy; struct power_supply_desc psy_desc; u32 rdo; u32 src_pdos[PDO_MAX_OBJECTS]; int num_pdos; /* USB PD objects */ struct usb_power_delivery *pd; struct usb_power_delivery_capabilities *port_source_caps; struct usb_power_delivery_capabilities *port_sink_caps; struct usb_power_delivery *partner_pd; struct usb_power_delivery_capabilities *partner_source_caps; struct usb_power_delivery_capabilities *partner_sink_caps; struct usb_role_switch *usb_role_sw; }; int ucsi_send_command(struct ucsi *ucsi, u64 command, void *retval, size_t size); void ucsi_altmode_update_active(struct ucsi_connector *con); int ucsi_resume(struct ucsi *ucsi); #if IS_ENABLED(CONFIG_POWER_SUPPLY) int ucsi_register_port_psy(struct ucsi_connector *con); void ucsi_unregister_port_psy(struct ucsi_connector *con); void ucsi_port_psy_changed(struct ucsi_connector *con); #else static inline int ucsi_register_port_psy(struct ucsi_connector *con) { return 0; } static inline void ucsi_unregister_port_psy(struct ucsi_connector *con) { } static inline void ucsi_port_psy_changed(struct ucsi_connector *con) { } #endif /* CONFIG_POWER_SUPPLY */ #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 */ #ifdef CONFIG_DEBUG_FS void ucsi_debugfs_init(void); void ucsi_debugfs_exit(void); void ucsi_debugfs_register(struct ucsi *ucsi); void ucsi_debugfs_unregister(struct ucsi *ucsi); #else static inline void ucsi_debugfs_init(void) { } static inline void ucsi_debugfs_exit(void) { } static inline void ucsi_debugfs_register(struct ucsi *ucsi) { } static inline void ucsi_debugfs_unregister(struct ucsi *ucsi) { } #endif /* CONFIG_DEBUG_FS */ /* * NVIDIA VirtualLink (svid 0x955) has two altmode. VirtualLink * DP mode with vdo=0x1 and NVIDIA test mode with vdo=0x3 */ #define USB_TYPEC_NVIDIA_VLINK_DP_VDO 0x1 #define USB_TYPEC_NVIDIA_VLINK_DBG_VDO 0x3 #endif /* __DRIVER_USB_TYPEC_UCSI_H */
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