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/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 2015-2017 Google, Inc */ #ifndef __LINUX_USB_PD_H #define __LINUX_USB_PD_H #include <linux/kernel.h> #include <linux/types.h> #include <linux/usb/typec.h> /* USB PD Messages */ enum pd_ctrl_msg_type { /* 0 Reserved */ PD_CTRL_GOOD_CRC = 1, PD_CTRL_GOTO_MIN = 2, PD_CTRL_ACCEPT = 3, PD_CTRL_REJECT = 4, PD_CTRL_PING = 5, PD_CTRL_PS_RDY = 6, PD_CTRL_GET_SOURCE_CAP = 7, PD_CTRL_GET_SINK_CAP = 8, PD_CTRL_DR_SWAP = 9, PD_CTRL_PR_SWAP = 10, PD_CTRL_VCONN_SWAP = 11, PD_CTRL_WAIT = 12, PD_CTRL_SOFT_RESET = 13, /* 14-15 Reserved */ PD_CTRL_NOT_SUPP = 16, PD_CTRL_GET_SOURCE_CAP_EXT = 17, PD_CTRL_GET_STATUS = 18, PD_CTRL_FR_SWAP = 19, PD_CTRL_GET_PPS_STATUS = 20, PD_CTRL_GET_COUNTRY_CODES = 21, /* 22-31 Reserved */ }; enum pd_data_msg_type { /* 0 Reserved */ PD_DATA_SOURCE_CAP = 1, PD_DATA_REQUEST = 2, PD_DATA_BIST = 3, PD_DATA_SINK_CAP = 4, PD_DATA_BATT_STATUS = 5, PD_DATA_ALERT = 6, PD_DATA_GET_COUNTRY_INFO = 7, /* 8-14 Reserved */ PD_DATA_VENDOR_DEF = 15, /* 16-31 Reserved */ }; enum pd_ext_msg_type { /* 0 Reserved */ PD_EXT_SOURCE_CAP_EXT = 1, PD_EXT_STATUS = 2, PD_EXT_GET_BATT_CAP = 3, PD_EXT_GET_BATT_STATUS = 4, PD_EXT_BATT_CAP = 5, PD_EXT_GET_MANUFACTURER_INFO = 6, PD_EXT_MANUFACTURER_INFO = 7, PD_EXT_SECURITY_REQUEST = 8, PD_EXT_SECURITY_RESPONSE = 9, PD_EXT_FW_UPDATE_REQUEST = 10, PD_EXT_FW_UPDATE_RESPONSE = 11, PD_EXT_PPS_STATUS = 12, PD_EXT_COUNTRY_INFO = 13, PD_EXT_COUNTRY_CODES = 14, /* 15-31 Reserved */ }; #define PD_REV10 0x0 #define PD_REV20 0x1 #define PD_REV30 0x2 #define PD_MAX_REV PD_REV30 #define PD_HEADER_EXT_HDR BIT(15) #define PD_HEADER_CNT_SHIFT 12 #define PD_HEADER_CNT_MASK 0x7 #define PD_HEADER_ID_SHIFT 9 #define PD_HEADER_ID_MASK 0x7 #define PD_HEADER_PWR_ROLE BIT(8) #define PD_HEADER_REV_SHIFT 6 #define PD_HEADER_REV_MASK 0x3 #define PD_HEADER_DATA_ROLE BIT(5) #define PD_HEADER_TYPE_SHIFT 0 #define PD_HEADER_TYPE_MASK 0x1f #define PD_HEADER(type, pwr, data, rev, id, cnt, ext_hdr) \ ((((type) & PD_HEADER_TYPE_MASK) << PD_HEADER_TYPE_SHIFT) | \ ((pwr) == TYPEC_SOURCE ? PD_HEADER_PWR_ROLE : 0) | \ ((data) == TYPEC_HOST ? PD_HEADER_DATA_ROLE : 0) | \ (rev << PD_HEADER_REV_SHIFT) | \ (((id) & PD_HEADER_ID_MASK) << PD_HEADER_ID_SHIFT) | \ (((cnt) & PD_HEADER_CNT_MASK) << PD_HEADER_CNT_SHIFT) | \ ((ext_hdr) ? PD_HEADER_EXT_HDR : 0)) #define PD_HEADER_LE(type, pwr, data, rev, id, cnt) \ cpu_to_le16(PD_HEADER((type), (pwr), (data), (rev), (id), (cnt), (0))) static inline unsigned int pd_header_cnt(u16 header) { return (header >> PD_HEADER_CNT_SHIFT) & PD_HEADER_CNT_MASK; } static inline unsigned int pd_header_cnt_le(__le16 header) { return pd_header_cnt(le16_to_cpu(header)); } static inline unsigned int pd_header_type(u16 header) { return (header >> PD_HEADER_TYPE_SHIFT) & PD_HEADER_TYPE_MASK; } static inline unsigned int pd_header_type_le(__le16 header) { return pd_header_type(le16_to_cpu(header)); } static inline unsigned int pd_header_msgid(u16 header) { return (header >> PD_HEADER_ID_SHIFT) & PD_HEADER_ID_MASK; } static inline unsigned int pd_header_msgid_le(__le16 header) { return pd_header_msgid(le16_to_cpu(header)); } static inline unsigned int pd_header_rev(u16 header) { return (header >> PD_HEADER_REV_SHIFT) & PD_HEADER_REV_MASK; } static inline unsigned int pd_header_rev_le(__le16 header) { return pd_header_rev(le16_to_cpu(header)); } #define PD_EXT_HDR_CHUNKED BIT(15) #define PD_EXT_HDR_CHUNK_NUM_SHIFT 11 #define PD_EXT_HDR_CHUNK_NUM_MASK 0xf #define PD_EXT_HDR_REQ_CHUNK BIT(10) #define PD_EXT_HDR_DATA_SIZE_SHIFT 0 #define PD_EXT_HDR_DATA_SIZE_MASK 0x1ff #define PD_EXT_HDR(data_size, req_chunk, chunk_num, chunked) \ ((((data_size) & PD_EXT_HDR_DATA_SIZE_MASK) << PD_EXT_HDR_DATA_SIZE_SHIFT) | \ ((req_chunk) ? PD_EXT_HDR_REQ_CHUNK : 0) | \ (((chunk_num) & PD_EXT_HDR_CHUNK_NUM_MASK) << PD_EXT_HDR_CHUNK_NUM_SHIFT) | \ ((chunked) ? PD_EXT_HDR_CHUNKED : 0)) #define PD_EXT_HDR_LE(data_size, req_chunk, chunk_num, chunked) \ cpu_to_le16(PD_EXT_HDR((data_size), (req_chunk), (chunk_num), (chunked))) static inline unsigned int pd_ext_header_chunk_num(u16 ext_header) { return (ext_header >> PD_EXT_HDR_CHUNK_NUM_SHIFT) & PD_EXT_HDR_CHUNK_NUM_MASK; } static inline unsigned int pd_ext_header_data_size(u16 ext_header) { return (ext_header >> PD_EXT_HDR_DATA_SIZE_SHIFT) & PD_EXT_HDR_DATA_SIZE_MASK; } static inline unsigned int pd_ext_header_data_size_le(__le16 ext_header) { return pd_ext_header_data_size(le16_to_cpu(ext_header)); } #define PD_MAX_PAYLOAD 7 #define PD_EXT_MAX_CHUNK_DATA 26 /** * struct pd_chunked_ext_message_data - PD chunked extended message data as * seen on wire * @header: PD extended message header * @data: PD extended message data */ struct pd_chunked_ext_message_data { __le16 header; u8 data[PD_EXT_MAX_CHUNK_DATA]; } __packed; /** * struct pd_message - PD message as seen on wire * @header: PD message header * @payload: PD message payload * @ext_msg: PD message chunked extended message data */ struct pd_message { __le16 header; union { __le32 payload[PD_MAX_PAYLOAD]; struct pd_chunked_ext_message_data ext_msg; }; } __packed; /* PDO: Power Data Object */ #define PDO_MAX_OBJECTS 7 enum pd_pdo_type { PDO_TYPE_FIXED = 0, PDO_TYPE_BATT = 1, PDO_TYPE_VAR = 2, PDO_TYPE_APDO = 3, }; #define PDO_TYPE_SHIFT 30 #define PDO_TYPE_MASK 0x3 #define PDO_TYPE(t) ((t) << PDO_TYPE_SHIFT) #define PDO_VOLT_MASK 0x3ff #define PDO_CURR_MASK 0x3ff #define PDO_PWR_MASK 0x3ff #define PDO_FIXED_DUAL_ROLE BIT(29) /* Power role swap supported */ #define PDO_FIXED_SUSPEND BIT(28) /* USB Suspend supported (Source) */ #define PDO_FIXED_HIGHER_CAP BIT(28) /* Requires more than vSafe5V (Sink) */ #define PDO_FIXED_EXTPOWER BIT(27) /* Externally powered */ #define PDO_FIXED_USB_COMM BIT(26) /* USB communications capable */ #define PDO_FIXED_DATA_SWAP BIT(25) /* Data role swap supported */ #define PDO_FIXED_VOLT_SHIFT 10 /* 50mV units */ #define PDO_FIXED_CURR_SHIFT 0 /* 10mA units */ #define PDO_FIXED_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_FIXED_VOLT_SHIFT) #define PDO_FIXED_CURR(ma) ((((ma) / 10) & PDO_CURR_MASK) << PDO_FIXED_CURR_SHIFT) #define PDO_FIXED(mv, ma, flags) \ (PDO_TYPE(PDO_TYPE_FIXED) | (flags) | \ PDO_FIXED_VOLT(mv) | PDO_FIXED_CURR(ma)) #define VSAFE5V 5000 /* mv units */ #define PDO_BATT_MAX_VOLT_SHIFT 20 /* 50mV units */ #define PDO_BATT_MIN_VOLT_SHIFT 10 /* 50mV units */ #define PDO_BATT_MAX_PWR_SHIFT 0 /* 250mW units */ #define PDO_BATT_MIN_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_BATT_MIN_VOLT_SHIFT) #define PDO_BATT_MAX_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_BATT_MAX_VOLT_SHIFT) #define PDO_BATT_MAX_POWER(mw) ((((mw) / 250) & PDO_PWR_MASK) << PDO_BATT_MAX_PWR_SHIFT) #define PDO_BATT(min_mv, max_mv, max_mw) \ (PDO_TYPE(PDO_TYPE_BATT) | PDO_BATT_MIN_VOLT(min_mv) | \ PDO_BATT_MAX_VOLT(max_mv) | PDO_BATT_MAX_POWER(max_mw)) #define PDO_VAR_MAX_VOLT_SHIFT 20 /* 50mV units */ #define PDO_VAR_MIN_VOLT_SHIFT 10 /* 50mV units */ #define PDO_VAR_MAX_CURR_SHIFT 0 /* 10mA units */ #define PDO_VAR_MIN_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_VAR_MIN_VOLT_SHIFT) #define PDO_VAR_MAX_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_VAR_MAX_VOLT_SHIFT) #define PDO_VAR_MAX_CURR(ma) ((((ma) / 10) & PDO_CURR_MASK) << PDO_VAR_MAX_CURR_SHIFT) #define PDO_VAR(min_mv, max_mv, max_ma) \ (PDO_TYPE(PDO_TYPE_VAR) | PDO_VAR_MIN_VOLT(min_mv) | \ PDO_VAR_MAX_VOLT(max_mv) | PDO_VAR_MAX_CURR(max_ma)) enum pd_apdo_type { APDO_TYPE_PPS = 0, }; #define PDO_APDO_TYPE_SHIFT 28 /* Only valid value currently is 0x0 - PPS */ #define PDO_APDO_TYPE_MASK 0x3 #define PDO_APDO_TYPE(t) ((t) << PDO_APDO_TYPE_SHIFT) #define PDO_PPS_APDO_MAX_VOLT_SHIFT 17 /* 100mV units */ #define PDO_PPS_APDO_MIN_VOLT_SHIFT 8 /* 100mV units */ #define PDO_PPS_APDO_MAX_CURR_SHIFT 0 /* 50mA units */ #define PDO_PPS_APDO_VOLT_MASK 0xff #define PDO_PPS_APDO_CURR_MASK 0x7f #define PDO_PPS_APDO_MIN_VOLT(mv) \ ((((mv) / 100) & PDO_PPS_APDO_VOLT_MASK) << PDO_PPS_APDO_MIN_VOLT_SHIFT) #define PDO_PPS_APDO_MAX_VOLT(mv) \ ((((mv) / 100) & PDO_PPS_APDO_VOLT_MASK) << PDO_PPS_APDO_MAX_VOLT_SHIFT) #define PDO_PPS_APDO_MAX_CURR(ma) \ ((((ma) / 50) & PDO_PPS_APDO_CURR_MASK) << PDO_PPS_APDO_MAX_CURR_SHIFT) #define PDO_PPS_APDO(min_mv, max_mv, max_ma) \ (PDO_TYPE(PDO_TYPE_APDO) | PDO_APDO_TYPE(APDO_TYPE_PPS) | \ PDO_PPS_APDO_MIN_VOLT(min_mv) | PDO_PPS_APDO_MAX_VOLT(max_mv) | \ PDO_PPS_APDO_MAX_CURR(max_ma)) static inline enum pd_pdo_type pdo_type(u32 pdo) { return (pdo >> PDO_TYPE_SHIFT) & PDO_TYPE_MASK; } static inline unsigned int pdo_fixed_voltage(u32 pdo) { return ((pdo >> PDO_FIXED_VOLT_SHIFT) & PDO_VOLT_MASK) * 50; } static inline unsigned int pdo_min_voltage(u32 pdo) { return ((pdo >> PDO_VAR_MIN_VOLT_SHIFT) & PDO_VOLT_MASK) * 50; } static inline unsigned int pdo_max_voltage(u32 pdo) { return ((pdo >> PDO_VAR_MAX_VOLT_SHIFT) & PDO_VOLT_MASK) * 50; } static inline unsigned int pdo_max_current(u32 pdo) { return ((pdo >> PDO_VAR_MAX_CURR_SHIFT) & PDO_CURR_MASK) * 10; } static inline unsigned int pdo_max_power(u32 pdo) { return ((pdo >> PDO_BATT_MAX_PWR_SHIFT) & PDO_PWR_MASK) * 250; } static inline enum pd_apdo_type pdo_apdo_type(u32 pdo) { return (pdo >> PDO_APDO_TYPE_SHIFT) & PDO_APDO_TYPE_MASK; } static inline unsigned int pdo_pps_apdo_min_voltage(u32 pdo) { return ((pdo >> PDO_PPS_APDO_MIN_VOLT_SHIFT) & PDO_PPS_APDO_VOLT_MASK) * 100; } static inline unsigned int pdo_pps_apdo_max_voltage(u32 pdo) { return ((pdo >> PDO_PPS_APDO_MAX_VOLT_SHIFT) & PDO_PPS_APDO_VOLT_MASK) * 100; } static inline unsigned int pdo_pps_apdo_max_current(u32 pdo) { return ((pdo >> PDO_PPS_APDO_MAX_CURR_SHIFT) & PDO_PPS_APDO_CURR_MASK) * 50; } /* RDO: Request Data Object */ #define RDO_OBJ_POS_SHIFT 28 #define RDO_OBJ_POS_MASK 0x7 #define RDO_GIVE_BACK BIT(27) /* Supports reduced operating current */ #define RDO_CAP_MISMATCH BIT(26) /* Not satisfied by source caps */ #define RDO_USB_COMM BIT(25) /* USB communications capable */ #define RDO_NO_SUSPEND BIT(24) /* USB Suspend not supported */ #define RDO_PWR_MASK 0x3ff #define RDO_CURR_MASK 0x3ff #define RDO_FIXED_OP_CURR_SHIFT 10 #define RDO_FIXED_MAX_CURR_SHIFT 0 #define RDO_OBJ(idx) (((idx) & RDO_OBJ_POS_MASK) << RDO_OBJ_POS_SHIFT) #define PDO_FIXED_OP_CURR(ma) ((((ma) / 10) & RDO_CURR_MASK) << RDO_FIXED_OP_CURR_SHIFT) #define PDO_FIXED_MAX_CURR(ma) ((((ma) / 10) & RDO_CURR_MASK) << RDO_FIXED_MAX_CURR_SHIFT) #define RDO_FIXED(idx, op_ma, max_ma, flags) \ (RDO_OBJ(idx) | (flags) | \ PDO_FIXED_OP_CURR(op_ma) | PDO_FIXED_MAX_CURR(max_ma)) #define RDO_BATT_OP_PWR_SHIFT 10 /* 250mW units */ #define RDO_BATT_MAX_PWR_SHIFT 0 /* 250mW units */ #define RDO_BATT_OP_PWR(mw) ((((mw) / 250) & RDO_PWR_MASK) << RDO_BATT_OP_PWR_SHIFT) #define RDO_BATT_MAX_PWR(mw) ((((mw) / 250) & RDO_PWR_MASK) << RDO_BATT_MAX_PWR_SHIFT) #define RDO_BATT(idx, op_mw, max_mw, flags) \ (RDO_OBJ(idx) | (flags) | \ RDO_BATT_OP_PWR(op_mw) | RDO_BATT_MAX_PWR(max_mw)) #define RDO_PROG_VOLT_MASK 0x7ff #define RDO_PROG_CURR_MASK 0x7f #define RDO_PROG_VOLT_SHIFT 9 #define RDO_PROG_CURR_SHIFT 0 #define RDO_PROG_VOLT_MV_STEP 20 #define RDO_PROG_CURR_MA_STEP 50 #define PDO_PROG_OUT_VOLT(mv) \ ((((mv) / RDO_PROG_VOLT_MV_STEP) & RDO_PROG_VOLT_MASK) << RDO_PROG_VOLT_SHIFT) #define PDO_PROG_OP_CURR(ma) \ ((((ma) / RDO_PROG_CURR_MA_STEP) & RDO_PROG_CURR_MASK) << RDO_PROG_CURR_SHIFT) #define RDO_PROG(idx, out_mv, op_ma, flags) \ (RDO_OBJ(idx) | (flags) | \ PDO_PROG_OUT_VOLT(out_mv) | PDO_PROG_OP_CURR(op_ma)) static inline unsigned int rdo_index(u32 rdo) { return (rdo >> RDO_OBJ_POS_SHIFT) & RDO_OBJ_POS_MASK; } static inline unsigned int rdo_op_current(u32 rdo) { return ((rdo >> RDO_FIXED_OP_CURR_SHIFT) & RDO_CURR_MASK) * 10; } static inline unsigned int rdo_max_current(u32 rdo) { return ((rdo >> RDO_FIXED_MAX_CURR_SHIFT) & RDO_CURR_MASK) * 10; } static inline unsigned int rdo_op_power(u32 rdo) { return ((rdo >> RDO_BATT_OP_PWR_SHIFT) & RDO_PWR_MASK) * 250; } static inline unsigned int rdo_max_power(u32 rdo) { return ((rdo >> RDO_BATT_MAX_PWR_SHIFT) & RDO_PWR_MASK) * 250; } /* USB PD timers and counters */ #define PD_T_NO_RESPONSE 5000 /* 4.5 - 5.5 seconds */ #define PD_T_DB_DETECT 10000 /* 10 - 15 seconds */ #define PD_T_SEND_SOURCE_CAP 150 /* 100 - 200 ms */ #define PD_T_SENDER_RESPONSE 60 /* 24 - 30 ms, relaxed */ #define PD_T_SOURCE_ACTIVITY 45 #define PD_T_SINK_ACTIVITY 135 #define PD_T_SINK_WAIT_CAP 310 /* 310 - 620 ms */ #define PD_T_PS_TRANSITION 500 #define PD_T_SRC_TRANSITION 35 #define PD_T_DRP_SNK 40 #define PD_T_DRP_SRC 30 #define PD_T_PS_SOURCE_OFF 920 #define PD_T_PS_SOURCE_ON 480 #define PD_T_PS_HARD_RESET 30 #define PD_T_SRC_RECOVER 760 #define PD_T_SRC_RECOVER_MAX 1000 #define PD_T_SRC_TURN_ON 275 #define PD_T_SAFE_0V 650 #define PD_T_VCONN_SOURCE_ON 100 #define PD_T_SINK_REQUEST 100 /* 100 ms minimum */ #define PD_T_ERROR_RECOVERY 100 /* minimum 25 is insufficient */ #define PD_T_SRCSWAPSTDBY 625 /* Maximum of 650ms */ #define PD_T_NEWSRC 250 /* Maximum of 275ms */ #define PD_T_SWAP_SRC_START 20 /* Minimum of 20ms */ #define PD_T_DRP_TRY 100 /* 75 - 150 ms */ #define PD_T_DRP_TRYWAIT 600 /* 400 - 800 ms */ #define PD_T_CC_DEBOUNCE 200 /* 100 - 200 ms */ #define PD_T_PD_DEBOUNCE 20 /* 10 - 20 ms */ #define PD_N_CAPS_COUNT (PD_T_NO_RESPONSE / PD_T_SEND_SOURCE_CAP) #define PD_N_HARD_RESET_COUNT 2 #endif /* __LINUX_USB_PD_H */
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