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232 lines
7.2 KiB
232 lines
7.2 KiB
/* SPDX-License-Identifier: GPL-2.0+ */ |
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/* |
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* Copyright 2015-2017 Google, Inc |
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* |
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* USB Type-C Port Controller Interface. |
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*/ |
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#ifndef __LINUX_USB_TCPCI_H |
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#define __LINUX_USB_TCPCI_H |
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#include <linux/usb/typec.h> |
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#include <linux/usb/tcpm.h> |
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#define TCPC_VENDOR_ID 0x0 |
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#define TCPC_PRODUCT_ID 0x2 |
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#define TCPC_BCD_DEV 0x4 |
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#define TCPC_TC_REV 0x6 |
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#define TCPC_PD_REV 0x8 |
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#define TCPC_PD_INT_REV 0xa |
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#define TCPC_ALERT 0x10 |
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#define TCPC_ALERT_EXTND BIT(14) |
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#define TCPC_ALERT_EXTENDED_STATUS BIT(13) |
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#define TCPC_ALERT_VBUS_DISCNCT BIT(11) |
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#define TCPC_ALERT_RX_BUF_OVF BIT(10) |
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#define TCPC_ALERT_FAULT BIT(9) |
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#define TCPC_ALERT_V_ALARM_LO BIT(8) |
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#define TCPC_ALERT_V_ALARM_HI BIT(7) |
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#define TCPC_ALERT_TX_SUCCESS BIT(6) |
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#define TCPC_ALERT_TX_DISCARDED BIT(5) |
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#define TCPC_ALERT_TX_FAILED BIT(4) |
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#define TCPC_ALERT_RX_HARD_RST BIT(3) |
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#define TCPC_ALERT_RX_STATUS BIT(2) |
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#define TCPC_ALERT_POWER_STATUS BIT(1) |
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#define TCPC_ALERT_CC_STATUS BIT(0) |
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#define TCPC_ALERT_MASK 0x12 |
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#define TCPC_POWER_STATUS_MASK 0x14 |
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#define TCPC_FAULT_STATUS_MASK 0x15 |
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#define TCPC_EXTENDED_STATUS_MASK 0x16 |
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#define TCPC_EXTENDED_STATUS_MASK_VSAFE0V BIT(0) |
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#define TCPC_ALERT_EXTENDED_MASK 0x17 |
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#define TCPC_SINK_FAST_ROLE_SWAP BIT(0) |
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#define TCPC_CONFIG_STD_OUTPUT 0x18 |
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#define TCPC_TCPC_CTRL 0x19 |
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#define TCPC_TCPC_CTRL_ORIENTATION BIT(0) |
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#define PLUG_ORNT_CC1 0 |
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#define PLUG_ORNT_CC2 1 |
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#define TCPC_TCPC_CTRL_BIST_TM BIT(1) |
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#define TCPC_TCPC_CTRL_EN_LK4CONN_ALRT BIT(6) |
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#define TCPC_EXTENDED_STATUS 0x20 |
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#define TCPC_EXTENDED_STATUS_VSAFE0V BIT(0) |
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#define TCPC_ROLE_CTRL 0x1a |
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#define TCPC_ROLE_CTRL_DRP BIT(6) |
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#define TCPC_ROLE_CTRL_RP_VAL_SHIFT 4 |
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#define TCPC_ROLE_CTRL_RP_VAL_MASK 0x3 |
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#define TCPC_ROLE_CTRL_RP_VAL_DEF 0x0 |
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#define TCPC_ROLE_CTRL_RP_VAL_1_5 0x1 |
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#define TCPC_ROLE_CTRL_RP_VAL_3_0 0x2 |
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#define TCPC_ROLE_CTRL_CC2_SHIFT 2 |
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#define TCPC_ROLE_CTRL_CC2_MASK 0x3 |
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#define TCPC_ROLE_CTRL_CC1_SHIFT 0 |
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#define TCPC_ROLE_CTRL_CC1_MASK 0x3 |
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#define TCPC_ROLE_CTRL_CC_RA 0x0 |
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#define TCPC_ROLE_CTRL_CC_RP 0x1 |
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#define TCPC_ROLE_CTRL_CC_RD 0x2 |
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#define TCPC_ROLE_CTRL_CC_OPEN 0x3 |
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#define TCPC_FAULT_CTRL 0x1b |
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#define TCPC_POWER_CTRL 0x1c |
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#define TCPC_POWER_CTRL_VCONN_ENABLE BIT(0) |
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#define TCPC_POWER_CTRL_BLEED_DISCHARGE BIT(3) |
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#define TCPC_POWER_CTRL_AUTO_DISCHARGE BIT(4) |
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#define TCPC_DIS_VOLT_ALRM BIT(5) |
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#define TCPC_POWER_CTRL_VBUS_VOLT_MON BIT(6) |
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#define TCPC_FAST_ROLE_SWAP_EN BIT(7) |
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#define TCPC_CC_STATUS 0x1d |
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#define TCPC_CC_STATUS_TOGGLING BIT(5) |
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#define TCPC_CC_STATUS_TERM BIT(4) |
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#define TCPC_CC_STATUS_TERM_RP 0 |
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#define TCPC_CC_STATUS_TERM_RD 1 |
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#define TCPC_CC_STATE_SRC_OPEN 0 |
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#define TCPC_CC_STATUS_CC2_SHIFT 2 |
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#define TCPC_CC_STATUS_CC2_MASK 0x3 |
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#define TCPC_CC_STATUS_CC1_SHIFT 0 |
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#define TCPC_CC_STATUS_CC1_MASK 0x3 |
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#define TCPC_POWER_STATUS 0x1e |
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#define TCPC_POWER_STATUS_DBG_ACC_CON BIT(7) |
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#define TCPC_POWER_STATUS_UNINIT BIT(6) |
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#define TCPC_POWER_STATUS_SOURCING_VBUS BIT(4) |
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#define TCPC_POWER_STATUS_VBUS_DET BIT(3) |
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#define TCPC_POWER_STATUS_VBUS_PRES BIT(2) |
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#define TCPC_POWER_STATUS_VCONN_PRES BIT(1) |
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#define TCPC_POWER_STATUS_SINKING_VBUS BIT(0) |
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#define TCPC_FAULT_STATUS 0x1f |
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#define TCPC_ALERT_EXTENDED 0x21 |
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#define TCPC_COMMAND 0x23 |
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#define TCPC_CMD_WAKE_I2C 0x11 |
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#define TCPC_CMD_DISABLE_VBUS_DETECT 0x22 |
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#define TCPC_CMD_ENABLE_VBUS_DETECT 0x33 |
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#define TCPC_CMD_DISABLE_SINK_VBUS 0x44 |
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#define TCPC_CMD_SINK_VBUS 0x55 |
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#define TCPC_CMD_DISABLE_SRC_VBUS 0x66 |
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#define TCPC_CMD_SRC_VBUS_DEFAULT 0x77 |
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#define TCPC_CMD_SRC_VBUS_HIGH 0x88 |
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#define TCPC_CMD_LOOK4CONNECTION 0x99 |
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#define TCPC_CMD_RXONEMORE 0xAA |
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#define TCPC_CMD_I2C_IDLE 0xFF |
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#define TCPC_DEV_CAP_1 0x24 |
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#define TCPC_DEV_CAP_2 0x26 |
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#define TCPC_STD_INPUT_CAP 0x28 |
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#define TCPC_STD_OUTPUT_CAP 0x29 |
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#define TCPC_MSG_HDR_INFO 0x2e |
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#define TCPC_MSG_HDR_INFO_DATA_ROLE BIT(3) |
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#define TCPC_MSG_HDR_INFO_PWR_ROLE BIT(0) |
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#define TCPC_MSG_HDR_INFO_REV_SHIFT 1 |
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#define TCPC_MSG_HDR_INFO_REV_MASK 0x3 |
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#define TCPC_RX_DETECT 0x2f |
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#define TCPC_RX_DETECT_HARD_RESET BIT(5) |
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#define TCPC_RX_DETECT_SOP BIT(0) |
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#define TCPC_RX_DETECT_SOP1 BIT(1) |
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#define TCPC_RX_DETECT_SOP2 BIT(2) |
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#define TCPC_RX_DETECT_DBG1 BIT(3) |
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#define TCPC_RX_DETECT_DBG2 BIT(4) |
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#define TCPC_RX_BYTE_CNT 0x30 |
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#define TCPC_RX_BUF_FRAME_TYPE 0x31 |
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#define TCPC_RX_BUF_FRAME_TYPE_SOP 0 |
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#define TCPC_RX_HDR 0x32 |
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#define TCPC_RX_DATA 0x34 /* through 0x4f */ |
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#define TCPC_TRANSMIT 0x50 |
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#define TCPC_TRANSMIT_RETRY_SHIFT 4 |
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#define TCPC_TRANSMIT_RETRY_MASK 0x3 |
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#define TCPC_TRANSMIT_TYPE_SHIFT 0 |
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#define TCPC_TRANSMIT_TYPE_MASK 0x7 |
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#define TCPC_TX_BYTE_CNT 0x51 |
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#define TCPC_TX_HDR 0x52 |
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#define TCPC_TX_DATA 0x54 /* through 0x6f */ |
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#define TCPC_VBUS_VOLTAGE 0x70 |
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#define TCPC_VBUS_VOLTAGE_MASK 0x3ff |
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#define TCPC_VBUS_VOLTAGE_LSB_MV 25 |
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#define TCPC_VBUS_SINK_DISCONNECT_THRESH 0x72 |
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#define TCPC_VBUS_SINK_DISCONNECT_THRESH_LSB_MV 25 |
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#define TCPC_VBUS_SINK_DISCONNECT_THRESH_MAX 0x3ff |
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#define TCPC_VBUS_STOP_DISCHARGE_THRESH 0x74 |
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#define TCPC_VBUS_VOLTAGE_ALARM_HI_CFG 0x76 |
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#define TCPC_VBUS_VOLTAGE_ALARM_LO_CFG 0x78 |
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/* I2C_WRITE_BYTE_COUNT + 1 when TX_BUF_BYTE_x is only accessible I2C_WRITE_BYTE_COUNT */ |
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#define TCPC_TRANSMIT_BUFFER_MAX_LEN 31 |
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#define tcpc_presenting_rd(reg, cc) \ |
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(!(TCPC_ROLE_CTRL_DRP & (reg)) && \ |
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(((reg) & (TCPC_ROLE_CTRL_## cc ##_MASK << TCPC_ROLE_CTRL_## cc ##_SHIFT)) == \ |
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(TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_## cc ##_SHIFT))) |
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struct tcpci; |
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/* |
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* @TX_BUF_BYTE_x_hidden: |
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* optional; Set when TX_BUF_BYTE_x can only be accessed through I2C_WRITE_BYTE_COUNT. |
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* @frs_sourcing_vbus: |
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* Optional; Callback to perform chip specific operations when FRS |
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* is sourcing vbus. |
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* @auto_discharge_disconnect: |
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* Optional; Enables TCPC to autonously discharge vbus on disconnect. |
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* @vbus_vsafe0v: |
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* optional; Set when TCPC can detect whether vbus is at VSAFE0V. |
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* @set_partner_usb_comm_capable: |
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* Optional; The USB Communications Capable bit indicates if port |
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* partner is capable of communication over the USB data lines |
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* (e.g. D+/- or SS Tx/Rx). Called to notify the status of the bit. |
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*/ |
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struct tcpci_data { |
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struct regmap *regmap; |
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unsigned char TX_BUF_BYTE_x_hidden:1; |
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unsigned char auto_discharge_disconnect:1; |
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unsigned char vbus_vsafe0v:1; |
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int (*init)(struct tcpci *tcpci, struct tcpci_data *data); |
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int (*set_vconn)(struct tcpci *tcpci, struct tcpci_data *data, |
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bool enable); |
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int (*start_drp_toggling)(struct tcpci *tcpci, struct tcpci_data *data, |
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enum typec_cc_status cc); |
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int (*set_vbus)(struct tcpci *tcpci, struct tcpci_data *data, bool source, bool sink); |
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void (*frs_sourcing_vbus)(struct tcpci *tcpci, struct tcpci_data *data); |
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void (*set_partner_usb_comm_capable)(struct tcpci *tcpci, struct tcpci_data *data, |
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bool capable); |
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}; |
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struct tcpci *tcpci_register_port(struct device *dev, struct tcpci_data *data); |
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void tcpci_unregister_port(struct tcpci *tcpci); |
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irqreturn_t tcpci_irq(struct tcpci *tcpci); |
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struct tcpm_port; |
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struct tcpm_port *tcpci_get_tcpm_port(struct tcpci *tcpci); |
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static inline enum typec_cc_status tcpci_to_typec_cc(unsigned int cc, bool sink) |
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{ |
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switch (cc) { |
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case 0x1: |
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return sink ? TYPEC_CC_RP_DEF : TYPEC_CC_RA; |
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case 0x2: |
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return sink ? TYPEC_CC_RP_1_5 : TYPEC_CC_RD; |
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case 0x3: |
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if (sink) |
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return TYPEC_CC_RP_3_0; |
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fallthrough; |
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case 0x0: |
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default: |
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return TYPEC_CC_OPEN; |
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} |
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} |
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#endif /* __LINUX_USB_TCPCI_H */
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