Copy a few structs and commands from the EC firmware headers so we can communicate with the EC regarding PD functionality.
Signed-off-by: Tomeu Vizoso <[email protected]> --- Changes in v8: - Don't add stuff to cros_ec_commands.h not needed in this series Changes in v7: None Changes in v6: None Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: None include/linux/mfd/cros_ec_commands.h | 182 +++++++++++++++++++++++++++++++++++ 1 file changed, 182 insertions(+) diff --git a/include/linux/mfd/cros_ec_commands.h b/include/linux/mfd/cros_ec_commands.h index 54b0812601f8..2a923a37dccb 100644 --- a/include/linux/mfd/cros_ec_commands.h +++ b/include/linux/mfd/cros_ec_commands.h @@ -286,6 +286,9 @@ enum host_event_code { /* Hang detect logic detected a hang and warm rebooted the AP */ EC_HOST_EVENT_HANG_REBOOT = 21, + /* PD MCU triggering host event */ + EC_HOST_EVENT_PD_MCU = 22, + /* * The high bit of the event mask is not used as a host event code. If * it reads back as set, then the entire event mask should be @@ -2576,6 +2579,185 @@ struct ec_params_usb_pd_control { uint8_t mux; } __packed; +#define EC_CMD_USB_PD_PORTS 0x102 + +struct ec_response_usb_pd_ports { + uint8_t num_ports; +} __packed; + +#define EC_CMD_USB_PD_POWER_INFO 0x103 + +#define PD_POWER_CHARGING_PORT 0xff +struct ec_params_usb_pd_power_info { + uint8_t port; +} __packed; + +enum usb_chg_type { + USB_CHG_TYPE_NONE, + USB_CHG_TYPE_PD, + USB_CHG_TYPE_C, + USB_CHG_TYPE_PROPRIETARY, + USB_CHG_TYPE_BC12_DCP, + USB_CHG_TYPE_BC12_CDP, + USB_CHG_TYPE_BC12_SDP, + USB_CHG_TYPE_OTHER, + USB_CHG_TYPE_VBUS, + USB_CHG_TYPE_UNKNOWN, +}; +enum usb_power_roles { + USB_PD_PORT_POWER_DISCONNECTED, + USB_PD_PORT_POWER_SOURCE, + USB_PD_PORT_POWER_SINK, + USB_PD_PORT_POWER_SINK_NOT_CHARGING, +}; + +struct usb_chg_measures { + uint16_t voltage_max; + uint16_t voltage_now; + uint16_t current_max; + uint16_t current_lim; +} __packed; + +struct ec_response_usb_pd_power_info { + uint8_t role; + uint8_t type; + uint8_t dualrole; + uint8_t reserved1; + struct usb_chg_measures meas; + uint32_t max_power; +} __packed; + +/* Read USB-PD Accessory info */ +#define EC_CMD_USB_PD_DEV_INFO 0x112 + +struct ec_params_usb_pd_info_request { + uint8_t port; +} __packed; + +/* Read USB-PD Device discovery info */ +#define EC_CMD_USB_PD_DISCOVERY 0x113 + +/** + * struct ec_params_usb_pd_discovery_entry - Params for EC_CMD_USB_PD_DISCOVERY + * + * @vid: USB-IF VID + * @pid: USB-IF PID + * @ptype: product type (hub, periph, cable, ama) + */ +struct ec_params_usb_pd_discovery_entry { + uint16_t vid; + uint16_t pid; + uint8_t ptype; +} __packed; + +/* Override default charge behavior */ +#define EC_CMD_PD_CHARGE_PORT_OVERRIDE 0x114 + +/* Negative port parameters have special meaning */ +enum usb_pd_override_ports { + OVERRIDE_DONT_CHARGE = -2, + OVERRIDE_OFF = -1, + /* [0, CONFIG_USB_PD_PORT_COUNT): Port# */ +}; + +/** + * struct ec_params_charge_port_override - Params for CHARGE_PORT_OVERRIDE cmd + * + * @override_port: Override port number + */ +struct ec_params_charge_port_override { + int16_t override_port; +} __packed; + +/* Read (and delete) one entry of PD event log */ +#define EC_CMD_PD_GET_LOG_ENTRY 0x115 + +/** + * struct ec_response_pd_log - Response for EC_CMD_PD_GET_LOG_ENTRY + * + * @timestamp_ms: relative timestamp + * @type: event type, see PD_EVENT_xx below + * @size_port: [7:5] port number [4:0] payload size in bytes + * @data: type-defined data payload + * @payload: optional additional data payload: 0..16 bytes + */ +struct ec_response_pd_log { + uint32_t timestamp_ms; + uint8_t type; + uint8_t size_port; + uint16_t data; + uint8_t payload[0]; +} __packed; + +/* The timestamp is the microsecond counter shifted to get about a ms. */ +#define PD_LOG_TIMESTAMP_SHIFT 10 /* 1 LSB = 1024us */ + +#define PD_LOG_SIZE_MASK 0x1f +#define PD_LOG_PORT_MASK 0xe0 +#define PD_LOG_PORT_SHIFT 5 +#define PD_LOG_PORT_SIZE(port, size) (((port) << PD_LOG_PORT_SHIFT) | \ + ((size) & PD_LOG_SIZE_MASK)) +#define PD_LOG_PORT(size_port) ((size_port) >> PD_LOG_PORT_SHIFT) +#define PD_LOG_SIZE(size_port) ((size_port) & PD_LOG_SIZE_MASK) + +/* PD event log : entry types */ +/* PD MCU events */ +#define PD_EVENT_MCU_BASE 0x00 +#define PD_EVENT_MCU_CHARGE (PD_EVENT_MCU_BASE+0) +#define PD_EVENT_MCU_CONNECT (PD_EVENT_MCU_BASE+1) +/* Reserved for custom board event */ +#define PD_EVENT_MCU_BOARD_CUSTOM (PD_EVENT_MCU_BASE+2) +/* PD generic accessory events */ +#define PD_EVENT_ACC_BASE 0x20 +#define PD_EVENT_ACC_RW_FAIL (PD_EVENT_ACC_BASE+0) +#define PD_EVENT_ACC_RW_ERASE (PD_EVENT_ACC_BASE+1) +/* PD power supply events */ +#define PD_EVENT_PS_BASE 0x40 +#define PD_EVENT_PS_FAULT (PD_EVENT_PS_BASE+0) +/* PD video dongles events */ +#define PD_EVENT_VIDEO_BASE 0x60 +#define PD_EVENT_VIDEO_DP_MODE (PD_EVENT_VIDEO_BASE+0) +#define PD_EVENT_VIDEO_CODEC (PD_EVENT_VIDEO_BASE+1) +/* Returned in the "type" field, when there is no entry available */ +#define PD_EVENT_NO_ENTRY 0xff + +/* + * PD_EVENT_MCU_CHARGE event definition : + * the payload is "struct usb_chg_measures" + * the data field contains the port state flags as defined below : + */ +/* Port partner is a dual role device */ +#define CHARGE_FLAGS_DUAL_ROLE (1 << 15) +/* Port is the pending override port */ +#define CHARGE_FLAGS_DELAYED_OVERRIDE (1 << 14) +/* Port is the override port */ +#define CHARGE_FLAGS_OVERRIDE (1 << 13) +/* Charger type */ +#define CHARGE_FLAGS_TYPE_SHIFT 3 +#define CHARGE_FLAGS_TYPE_MASK (0xf << CHARGE_FLAGS_TYPE_SHIFT) +/* Power delivery role */ +#define CHARGE_FLAGS_ROLE_MASK (7 << 0) + +struct mcdp_version { + uint8_t major; + uint8_t minor; + uint16_t build; +} __packed; + +/** + * struct mcdp_info - payload of PD_EVENT_VIDEO_CODEC + */ +struct mcdp_info { + uint8_t family[2]; + uint8_t chipid[2]; + struct mcdp_version irom; + struct mcdp_version fw; +} __packed; + +/* struct mcdp_info field decoding */ +#define MCDP_CHIPID(chipid) ((chipid[0] << 8) | chipid[1]) +#define MCDP_FAMILY(family) ((family[0] << 8) | family[1]) + /*****************************************************************************/ /* * Passthru commands -- 2.5.5
