395 lines
14 KiB
C
395 lines
14 KiB
C
/*
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* PD Buddy Firmware Library - USB Power Delivery for everyone
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* Copyright 2017-2018 Clayton G. Hobbs
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef PDB_PD_H
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#define PDB_PD_H
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#include <stdint.h>
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/*
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* Macros for working with USB Power Delivery messages.
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*
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* This file is mostly written from the PD Rev. 2.0 spec, but the header is
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* written from the Rev. 3.0 spec.
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*/
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/*
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* PD Header
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*/
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#define PD_HDR_MSGTYPE_SHIFT 0
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#define PD_HDR_MSGTYPE (0x1F << PD_HDR_MSGTYPE_SHIFT)
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#define PD_HDR_DATAROLE_SHIFT 5
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#define PD_HDR_DATAROLE (0x1 << PD_HDR_DATAROLE_SHIFT)
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#define PD_HDR_SPECREV_SHIFT 6
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#define PD_HDR_SPECREV (0x3 << PD_HDR_SPECREV_SHIFT)
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#define PD_HDR_POWERROLE_SHIFT 8
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#define PD_HDR_POWERROLE (1 << PD_HDR_POWERROLE_SHIFT)
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#define PD_HDR_MESSAGEID_SHIFT 9
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#define PD_HDR_MESSAGEID (0x7 << PD_HDR_MESSAGEID_SHIFT)
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#define PD_HDR_NUMOBJ_SHIFT 12
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#define PD_HDR_NUMOBJ (0x7 << PD_HDR_NUMOBJ_SHIFT)
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#define PD_HDR_EXT (1 << 15)
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/* Message types */
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#define PD_MSGTYPE_GET(msg) (((msg)->hdr & PD_HDR_MSGTYPE) >> PD_HDR_MSGTYPE_SHIFT)
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/* Control Message */
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#define PD_MSGTYPE_GOODCRC 0x01
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#define PD_MSGTYPE_GOTOMIN 0x02
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#define PD_MSGTYPE_ACCEPT 0x03
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#define PD_MSGTYPE_REJECT 0x04
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#define PD_MSGTYPE_PING 0x05
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#define PD_MSGTYPE_PS_RDY 0x06
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#define PD_MSGTYPE_GET_SOURCE_CAP 0x07
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#define PD_MSGTYPE_GET_SINK_CAP 0x08
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#define PD_MSGTYPE_DR_SWAP 0x09
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#define PD_MSGTYPE_PR_SWAP 0x0A
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#define PD_MSGTYPE_VCONN_SWAP 0x0B
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#define PD_MSGTYPE_WAIT 0x0C
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#define PD_MSGTYPE_SOFT_RESET 0x0D
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#define PD_MSGTYPE_NOT_SUPPORTED 0x10
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#define PD_MSGTYPE_GET_SOURCE_CAP_EXTENDED 0x11
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#define PD_MSGTYPE_GET_STATUS 0x12
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#define PD_MSGTYPE_FR_SWAP 0x13
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#define PD_MSGTYPE_GET_PPS_STATUS 0x14
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#define PD_MSGTYPE_GET_COUNTRY_CODES 0x15
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/* Data Message */
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#define PD_MSGTYPE_SOURCE_CAPABILITIES 0x01
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#define PD_MSGTYPE_REQUEST 0x02
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#define PD_MSGTYPE_BIST 0x03
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#define PD_MSGTYPE_SINK_CAPABILITIES 0x04
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#define PD_MSGTYPE_BATTERY_STATUS 0x05
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#define PD_MSGTYPE_ALERT 0x06
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#define PD_MSGTYPE_GET_COUNTRY_INFO 0x07
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#define PD_MSGTYPE_VENDOR_DEFINED 0x0F
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/* Extended Message */
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#define PD_MSGTYPE_SOURCE_CAPABILITIES_EXTENDED 0x01
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#define PD_MSGTYPE_STATUS 0x02
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#define PD_MSGTYPE_GET_BATTERY_CAP 0x03
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#define PD_MSGTYPE_GET_BATTERY_STATUS 0x04
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#define PD_MSGTYPE_BATTERY_CAPABILITIES 0x05
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#define PD_MSGTYPE_GET_MANUFACTURER_INFO 0x06
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#define PD_MSGTYPE_MANUFACTURER_INFO 0x07
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#define PD_MSGTYPE_SECURITY_REQUEST 0x08
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#define PD_MSGTYPE_SECURITY_RESPONSE 0x09
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#define PD_MSGTYPE_FIRMWARE_UPDATE_REQUEST 0x0A
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#define PD_MSGTYPE_FIRMWARE_UPDATE_RESPONSE 0x0B
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#define PD_MSGTYPE_PPS_STATUS 0x0C
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#define PD_MSGTYPE_COUNTRY_INFO 0x0D
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#define PD_MSGTYPE_COUNTRY_CODES 0x0E
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/* Data roles */
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#define PD_DATAROLE_UFP (0x0 << PD_HDR_DATAROLE_SHIFT)
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#define PD_DATAROLE_DFP (0x1 << PD_HDR_DATAROLE_SHIFT)
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/* Specification revisions */
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#define PD_SPECREV_1_0 (0x0 << PD_HDR_SPECREV_SHIFT)
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#define PD_SPECREV_2_0 (0x1 << PD_HDR_SPECREV_SHIFT)
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#define PD_SPECREV_3_0 (0x2 << PD_HDR_SPECREV_SHIFT)
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/* Port power roles */
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#define PD_POWERROLE_SINK (0x0 << PD_HDR_POWERROLE_SHIFT)
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#define PD_POWERROLE_SOURCE (0x1 << PD_HDR_POWERROLE_SHIFT)
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/* Message ID */
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#define PD_MESSAGEID_GET(msg) (((msg)->hdr & PD_HDR_MESSAGEID) >> PD_HDR_MESSAGEID_SHIFT)
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/* Number of data objects */
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#define PD_NUMOBJ(n) (((n) << PD_HDR_NUMOBJ_SHIFT) & PD_HDR_NUMOBJ)
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#define PD_NUMOBJ_GET(msg) (((msg)->hdr & PD_HDR_NUMOBJ) >> PD_HDR_NUMOBJ_SHIFT)
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/*
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* PD Extended Message Header
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*/
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#define PD_EXTHDR_DATA_SIZE_SHIFT 0
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#define PD_EXTHDR_DATA_SIZE (0x1FF << PD_EXTHDR_DATA_SIZE_SHIFT)
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#define PD_EXTHDR_REQUEST_CHUNK_SHIFT 10
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#define PD_EXTHDR_REQUEST_CHUNK (1 << PD_EXTHDR_REQUEST_CHUNK_SHIFT)
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#define PD_EXTHDR_CHUNK_NUMBER_SHIFT 11
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#define PD_EXTHDR_CHUNK_NUMBER (0xF << PD_EXTHDR_CHUNK_NUMBER_SHIFT)
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#define PD_EXTHDR_CHUNKED_SHIFT 15
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#define PD_EXTHDR_CHUNKED (1 << PD_EXTHDR_CHUNKED_SHIFT)
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/* Data size */
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#define PD_DATA_SIZE(n) (((n) << PD_EXTHDR_DATA_SIZE_SHIFT) & PD_EXTHDR_DATA_SIZE)
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#define PD_DATA_SIZE_GET(msg) (((msg)->exthdr & PD_EXTHDR_DATA_SIZE) >> PD_EXTHDR_DATA_SIZE_SHIFT)
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/* Chunk number */
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#define PD_CHUNK_NUMBER(n) (((n) << PD_EXTHDR_CHUNK_NUMBER_SHIFT) & PD_EXTHDR_CHUNK_NUMBER)
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#define PD_CHUNK_NUMBER_GET(msg) (((msg)->exthdr & PD_EXTHDR_CHUNK_NUMBER) >> PD_EXTHDR_CHUNK_NUMBER_SHIFT)
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/*
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* PD Power Data Object
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*/
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#define PD_PDO_TYPE_SHIFT 30
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#define PD_PDO_TYPE (0x3 << PD_PDO_TYPE_SHIFT)
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/* PDO types */
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#define PD_PDO_TYPE_FIXED ((unsigned) (0x0 << PD_PDO_TYPE_SHIFT))
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#define PD_PDO_TYPE_BATTERY ((unsigned) (0x1 << PD_PDO_TYPE_SHIFT))
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#define PD_PDO_TYPE_VARIABLE ((unsigned) (0x2 << PD_PDO_TYPE_SHIFT))
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#define PD_PDO_TYPE_AUGMENTED ((unsigned) (0x3 << PD_PDO_TYPE_SHIFT))
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#define PD_APDO_TYPE_SHIFT 28
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#define PD_APDO_TYPE (0x3 << PD_APDO_TYPE_SHIFT)
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/* APDO types */
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#define PD_APDO_TYPE_PPS (0x0 << PD_APDO_TYPE_SHIFT)
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/* PD Source Fixed PDO */
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#define PD_PDO_SRC_FIXED_DUAL_ROLE_PWR_SHIFT 29
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#define PD_PDO_SRC_FIXED_DUAL_ROLE_PWR (1 << PD_PDO_SRC_FIXED_DUAL_ROLE_PWR_SHIFT)
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#define PD_PDO_SRC_FIXED_USB_SUSPEND_SHIFT 28
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#define PD_PDO_SRC_FIXED_USB_SUSPEND (1 << PD_PDO_SRC_FIXED_USB_SUSPEND_SHIFT)
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#define PD_PDO_SRC_FIXED_UNCONSTRAINED_SHIFT 27
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#define PD_PDO_SRC_FIXED_UNCONSTRAINED (1 << PD_PDO_SRC_FIXED_UNCONSTRAINED_SHIFT)
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#define PD_PDO_SRC_FIXED_USB_COMMS_SHIFT 26
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#define PD_PDO_SRC_FIXED_USB_COMMS (1 << PD_PDO_SRC_FIXED_USB_COMMS_SHIFT)
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#define PD_PDO_SRC_FIXED_DUAL_ROLE_DATA_SHIFT 25
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#define PD_PDO_SRC_FIXED_DUAL_ROLE_DATA (1 << PD_PDO_SRC_FIXED_DUAL_ROLE_DATA_SHIFT)
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#define PD_PDO_SRC_FIXED_UNCHUNKED_EXT_MSG_SHIFT 24
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#define PD_PDO_SRC_FIXED_UNCHUNKED_EXT_MSG (1 << PD_PDO_SRC_FIXED_UNCHUNKED_EXT_MSG_SHIFT)
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#define PD_PDO_SRC_FIXED_PEAK_CURRENT_SHIFT 20
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#define PD_PDO_SRC_FIXED_PEAK_CURRENT (0x3 << PD_PDO_SRC_FIXED_PEAK_CURRENT_SHIFT)
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#define PD_PDO_SRC_FIXED_VOLTAGE_SHIFT 10
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#define PD_PDO_SRC_FIXED_VOLTAGE (0x3FF << PD_PDO_SRC_FIXED_VOLTAGE_SHIFT)
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#define PD_PDO_SRC_FIXED_CURRENT_SHIFT 0
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#define PD_PDO_SRC_FIXED_CURRENT (0x3FF << PD_PDO_SRC_FIXED_CURRENT_SHIFT)
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/* PD Source Fixed PDO current */
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#define PD_PDO_SRC_FIXED_CURRENT_GET(pdo) (((pdo) & PD_PDO_SRC_FIXED_CURRENT) >> PD_PDO_SRC_FIXED_CURRENT_SHIFT)
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/* PD Source Fixed PDO voltage */
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#define PD_PDO_SRC_FIXED_VOLTAGE_GET(pdo) (((pdo) & PD_PDO_SRC_FIXED_VOLTAGE) >> PD_PDO_SRC_FIXED_VOLTAGE_SHIFT)
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/* PD Programmable Power Supply APDO */
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#define PD_APDO_PPS_MAX_VOLTAGE_SHIFT 17
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#define PD_APDO_PPS_MAX_VOLTAGE (0xFF << PD_APDO_PPS_MAX_VOLTAGE_SHIFT)
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#define PD_APDO_PPS_MIN_VOLTAGE_SHIFT 8
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#define PD_APDO_PPS_MIN_VOLTAGE (0xFF << PD_APDO_PPS_MIN_VOLTAGE_SHIFT)
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#define PD_APDO_PPS_CURRENT_SHIFT 0
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#define PD_APDO_PPS_CURRENT (0x7F << PD_APDO_PPS_CURRENT_SHIFT)
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/* PD Programmable Power Supply APDO voltages */
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#define PD_APDO_PPS_MAX_VOLTAGE_GET(pdo) (((pdo) & PD_APDO_PPS_MAX_VOLTAGE) >> PD_APDO_PPS_MAX_VOLTAGE_SHIFT)
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#define PD_APDO_PPS_MIN_VOLTAGE_GET(pdo) (((pdo) & PD_APDO_PPS_MIN_VOLTAGE) >> PD_APDO_PPS_MIN_VOLTAGE_SHIFT)
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#define PD_APDO_PPS_MAX_VOLTAGE_SET(v) (((v) << PD_APDO_PPS_MAX_VOLTAGE_SHIFT) & PD_APDO_PPS_MAX_VOLTAGE)
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#define PD_APDO_PPS_MIN_VOLTAGE_SET(v) (((v) << PD_APDO_PPS_MIN_VOLTAGE_SHIFT) & PD_APDO_PPS_MIN_VOLTAGE)
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/* PD Programmable Power Supply APDO current */
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#define PD_APDO_PPS_CURRENT_GET(pdo) ((uint8_t) (((pdo) & PD_APDO_PPS_CURRENT) >> PD_APDO_PPS_CURRENT_SHIFT))
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#define PD_APDO_PPS_CURRENT_SET(i) (((i) << PD_APDO_PPS_CURRENT_SHIFT) & PD_APDO_PPS_CURRENT)
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/* TODO: other types of source PDO */
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/* PD Sink Fixed PDO */
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#define PD_PDO_SNK_FIXED_DUAL_ROLE_PWR_SHIFT 29
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#define PD_PDO_SNK_FIXED_DUAL_ROLE_PWR (1 << PD_PDO_SNK_FIXED_DUAL_ROLE_PWR_SHIFT)
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#define PD_PDO_SNK_FIXED_HIGHER_CAP_SHIFT 28
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#define PD_PDO_SNK_FIXED_HIGHER_CAP (1 << PD_PDO_SNK_FIXED_HIGHER_CAP_SHIFT)
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#define PD_PDO_SNK_FIXED_UNCONSTRAINED_SHIFT 27
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#define PD_PDO_SNK_FIXED_UNCONSTRAINED (1 << PD_PDO_SNK_FIXED_UNCONSTRAINED_SHIFT)
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#define PD_PDO_SNK_FIXED_USB_COMMS_SHIFT 26
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#define PD_PDO_SNK_FIXED_USB_COMMS (1 << PD_PDO_SNK_FIXED_USB_COMMS_SHIFT)
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#define PD_PDO_SNK_FIXED_DUAL_ROLE_DATA_SHIFT 25
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#define PD_PDO_SNK_FIXED_DUAL_ROLE_DATA (1 << PD_PDO_SNK_FIXED_DUAL_ROLE_DATA_SHIFT)
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#define PD_PDO_SNK_FIXED_VOLTAGE_SHIFT 10
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#define PD_PDO_SNK_FIXED_VOLTAGE (0x3FF << PD_PDO_SNK_FIXED_VOLTAGE_SHIFT)
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#define PD_PDO_SNK_FIXED_CURRENT_SHIFT 0
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#define PD_PDO_SNK_FIXED_CURRENT (0x3FF << PD_PDO_SNK_FIXED_CURRENT_SHIFT)
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/* PD Sink Fixed PDO current */
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#define PD_PDO_SNK_FIXED_CURRENT_SET(i) (((i) << PD_PDO_SNK_FIXED_CURRENT_SHIFT) & PD_PDO_SNK_FIXED_CURRENT)
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/* PD Sink Fixed PDO voltage */
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#define PD_PDO_SNK_FIXED_VOLTAGE_SET(v) (((v) << PD_PDO_SNK_FIXED_VOLTAGE_SHIFT) & PD_PDO_SNK_FIXED_VOLTAGE)
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/* TODO: other types of sink PDO */
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/*
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* PD Request Data Object
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*/
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#define PD_RDO_OBJPOS_SHIFT 28
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#define PD_RDO_OBJPOS (0x7 << PD_RDO_OBJPOS_SHIFT)
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#define PD_RDO_GIVEBACK_SHIFT 27
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#define PD_RDO_GIVEBACK (1 << PD_RDO_GIVEBACK_SHIFT)
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#define PD_RDO_CAP_MISMATCH_SHIFT 26
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#define PD_RDO_CAP_MISMATCH (1 << PD_RDO_CAP_MISMATCH_SHIFT)
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#define PD_RDO_USB_COMMS_SHIFT 25
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#define PD_RDO_USB_COMMS (1 << PD_RDO_USB_COMMS_SHIFT)
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#define PD_RDO_NO_USB_SUSPEND_SHIFT 24
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#define PD_RDO_NO_USB_SUSPEND (1 << PD_RDO_NO_USB_SUSPEND_SHIFT)
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#define PD_RDO_UNCHUNKED_EXT_MSG_SHIFT 23
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#define PD_RDO_UNCHUNKED_EXT_MSG (1 << PD_RDO_UNCHUNKED_EXT_MSG_SHIFT)
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#define PD_RDO_OBJPOS_SET(i) (((i) << PD_RDO_OBJPOS_SHIFT) & PD_RDO_OBJPOS)
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#define PD_RDO_OBJPOS_GET(msg) (((msg)->obj[0] & PD_RDO_OBJPOS) >> PD_RDO_OBJPOS_SHIFT)
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/* Fixed and Variable RDO, no GiveBack support */
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#define PD_RDO_FV_CURRENT_SHIFT 10
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#define PD_RDO_FV_CURRENT (0x3FF << PD_RDO_FV_CURRENT_SHIFT)
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#define PD_RDO_FV_MAX_CURRENT_SHIFT 0
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#define PD_RDO_FV_MAX_CURRENT (0x3FF << PD_RDO_FV_MAX_CURRENT_SHIFT)
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#define PD_RDO_FV_CURRENT_SET(i) (((i) << PD_RDO_FV_CURRENT_SHIFT) & PD_RDO_FV_CURRENT)
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#define PD_RDO_FV_MAX_CURRENT_SET(i) (((i) << PD_RDO_FV_MAX_CURRENT_SHIFT) & PD_RDO_FV_MAX_CURRENT)
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/* Fixed and Variable RDO with GiveBack support */
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#define PD_RDO_FV_MIN_CURRENT_SHIFT 0
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#define PD_RDO_FV_MIN_CURRENT (0x3FF << PD_RDO_FV_MIN_CURRENT_SHIFT)
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#define PD_RDO_FV_MIN_CURRENT_SET(i) (((i) << PD_RDO_FV_MIN_CURRENT_SHIFT) & PD_RDO_FV_MIN_CURRENT)
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/* TODO: Battery RDOs */
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/* Programmable RDO */
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#define PD_RDO_PROG_VOLTAGE_SHIFT 9
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#define PD_RDO_PROG_VOLTAGE (0x7FF << PD_RDO_PROG_VOLTAGE_SHIFT)
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#define PD_RDO_PROG_CURRENT_SHIFT 0
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#define PD_RDO_PROG_CURRENT (0x7F << PD_RDO_PROG_CURRENT_SHIFT)
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#define PD_RDO_PROG_VOLTAGE_SET(i) (((i) << PD_RDO_PROG_VOLTAGE_SHIFT) & PD_RDO_PROG_VOLTAGE)
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#define PD_RDO_PROG_CURRENT_SET(i) (((i) << PD_RDO_PROG_CURRENT_SHIFT) & PD_RDO_PROG_CURRENT)
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/*
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* Time values
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*
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* Where a range is specified, the middle of the range (rounded down to the
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* nearest millisecond) is used.
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*/
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#define PD_T_CHUNKING_NOT_SUPPORTED TIME_MS2I(45)
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#define PD_T_HARD_RESET_COMPLETE TIME_MS2I(4)
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#define PD_T_PS_TRANSITION TIME_MS2I(500)
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#define PD_T_SENDER_RESPONSE TIME_MS2I(27)
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#define PD_T_SINK_REQUEST TIME_MS2I(100)
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#define PD_T_TYPEC_SINK_WAIT_CAP TIME_MS2I(465)
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#define PD_T_PPS_REQUEST TIME_S2I(10)
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/* This is actually from Type-C, not Power Delivery, but who cares? */
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#define PD_T_PD_DEBOUNCE TIME_MS2I(15)
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/*
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* Counter maximums
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*/
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#define PD_N_HARD_RESET_COUNT 2
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/*
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* Value parameters
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*/
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#define PD_MAX_EXT_MSG_LEN 260
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#define PD_MAX_EXT_MSG_CHUNK_LEN 26
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#define PD_MAX_EXT_MSG_LEGACY_LEN 26
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/*
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* Unit conversions
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*
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* V: volt
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* CV: centivolt
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* MV: millivolt
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* PRV: Programmable RDO voltage unit (20 mV)
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* PDV: Power Delivery voltage unit (50 mV)
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* PAV: PPS APDO voltage unit (100 mV)
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*
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* A: ampere
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* CA: centiampere
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* MA: milliampere
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* PDI: Power Delivery current unit (10 mA)
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* PAI: PPS APDO current unit (50 mA)
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*
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* W: watt
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* CW: centiwatt
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* MW: milliwatt
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*
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* O: ohm
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* CO: centiohm
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* MO: milliohm
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*/
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#define PD_MV2PRV(mv) ((mv) / 20)
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#define PD_MV2PDV(mv) ((mv) / 50)
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#define PD_MV2PAV(mv) ((mv) / 100)
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#define PD_PRV2MV(prv) ((prv) * 20)
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#define PD_PDV2MV(pdv) ((pdv) * 50)
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#define PD_PAV2MV(pav) ((pav) * 100)
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#define PD_MA2CA(ma) (((ma) + 10 - 1) / 10)
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#define PD_MA2PDI(ma) (((ma) + 10 - 1) / 10)
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#define PD_MA2PAI(ma) (((ma) + 50 - 1) / 50)
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#define PD_CA2PAI(ca) (((ca) + 5 - 1) / 5)
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#define PD_PDI2MA(pdi) ((pdi) * 10)
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#define PD_PAI2MA(pai) ((pai) * 50)
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#define PD_PAI2CA(pai) ((pai) * 5)
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#define PD_MW2CW(mw) ((mw) / 10)
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#define PD_MO2CO(mo) ((mo) / 10)
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/* Get portions of a voltage in more normal units */
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#define PD_MV_V(mv) ((mv) / 1000)
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#define PD_MV_MV(mv) ((mv) % 1000)
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#define PD_PDV_V(pdv) ((pdv) / 20)
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#define PD_PDV_CV(pdv) (5 * ((pdv) % 20))
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#define PD_PAV_V(pav) ((pav) / 10)
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#define PD_PAV_CV(pav) (10 * ((pav) % 10))
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/* Get portions of a PD current in more normal units */
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#define PD_PDI_A(pdi) ((pdi) / 100)
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#define PD_PDI_CA(pdi) ((pdi) % 100)
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#define PD_PAI_A(pai) ((pai) / 20)
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#define PD_PAI_CA(pai) (5 * ((pai) % 20))
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/* Get portions of a power in more normal units */
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#define PD_CW_W(cw) ((cw) / 100)
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#define PD_CW_CW(cw) ((cw) % 100)
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/* Get portions of a resistance in more normal units */
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#define PD_CO_O(co) ((co) / 100)
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#define PD_CO_CO(co) ((co) % 100)
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/*
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* Unit constants
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*/
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#define PD_MV_MIN 0
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#define PD_MV_MAX 21000
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#define PD_PDV_MIN PD_MV2PDV(PD_MV_MIN)
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#define PD_PDV_MAX PD_MV2PDV(PD_MV_MAX)
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#define PD_MA_MIN 0
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#define PD_MA_MAX 5000
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#define PD_CA_MIN PD_MA2CA(PD_MA_MIN)
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#define PD_CA_MAX PD_MA2CA(PD_MA_MAX)
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#define PD_PDI_MIN PD_MA2PDI(PD_MA_MIN)
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#define PD_PDI_MAX PD_MA2PDI(PD_MA_MAX)
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#define PD_MW_MIN 0
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#define PD_MW_MAX 100000
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#define PD_MO_MIN 500
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#define PD_MO_MAX 655350
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#endif /* PDB_PD_H */
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