1 files changed, 215 insertions, 0 deletions

diff --git a/drivers/usb/misc/ucsi.h b/drivers/usb/misc/ucsi.h
new file mode 100644
index 000000000000..6dd11d1fe225
--- /dev/null
+++ b/drivers/usb/misc/ucsi.h
@@ -0,0 +1,215 @@
+
+#include <linux/types.h>
+
+/* -------------------------------------------------------------------------- */
+
+/* Command Status and Connector Change Indication (CCI) data structure */
+struct ucsi_cci {
+        unsigned int RESERVED1:1;
+        unsigned int connector_change:7;
+        u8 data_length;
+        unsigned int RESERVED9:9;
+        unsigned int not_supported:1;
+        unsigned int cancel_complete:1;
+        unsigned int reset_complete:1;
+        unsigned int busy:1;
+        unsigned int ack_complete:1;
+        unsigned int error:1;
+        unsigned int cmd_complete:1;
+} __packed;
+
+/* Default fields in CONTROL data structure */
+struct ucsi_command {
+        u8 cmd;
+        u8 length;
+        u64 data:48;
+} __packed;
+
+/* Set USB Operation Mode Command structure */
+struct ucsi_uor_cmd {
+        u8 cmd;
+        u8 length;
+        u64 con_num:7;
+        u64 role:3;
+#define UCSI_UOR_ROLE_DFP                       BIT(0)
+#define UCSI_UOR_ROLE_UFP                       BIT(1)
+#define UCSI_UOR_ROLE_DRP                       BIT(2)
+        u64 data:38;
+} __packed;
+
+struct ucsi_control {
+        union {
+                u64 raw_cmd;
+                struct ucsi_command cmd;
+                struct ucsi_uor_cmd uor;
+        };
+};
+
+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;
+
+/* 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)
+        u8 num_connectors;
+        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;
+} __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 RESERVED_2:2;
+        u8 latency:4;
+        u8 RESERVED_4:4;
+} __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_3        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_NO_UFP  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 RESERVED:2;
+} __packed;
+
+/* -------------------------------------------------------------------------- */
+