6135892d66
right now it is only possible to change the delivered power on the fly by 1. selecting PDO2 slot 2. write to POO2 3. renegotiate power delivery by sw reset command
144 lines
4.8 KiB
C
144 lines
4.8 KiB
C
/****************************************************************************
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* include/nuttx/usb/stusb4500.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/* Definitions, names and concept inspiered by
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* https://github.com/ardnew/STUSB4500/blob/master/LICENSE
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*/
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#ifndef __INCLUDE_NUTTX_USB_STUSB4500_H
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#define __INCLUDE_NUTTX_USB_STUSB4500_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/fs/ioctl.h>
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/****************************************************************************
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* Pre-Processor Declarations
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* IOCTL Commands ***********************************************************/
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#define USBCIOC_READ_DEVID _USBCIOC(0x0001) /* Arg: uint8_t* pointer */
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#define USBCIOC_READ_PD_STATUS _USBCIOC(0x0002) /* Arg: uint8_t* pointer */
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#define USBCIOC_SET_PWR _USBCIOC(0x0003) /* Arg: uint8_t* pointer */
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#define USBCIOC_READ_PWR _USBCIOC(0x0004) /* Arg: uint8_t* pointer */
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/****************************************************************************
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* Public Types
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****************************************************************************/
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typedef union
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{
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uint8_t bytes[4];
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struct
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{
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uint32_t operational_current : 10;
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uint32_t voltage : 10;
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uint8_t reserved_22_20 : 3;
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uint8_t fast_role_req_cur : 2; /* must be set to 0 in 2.0 */
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uint8_t dual_role_data : 1;
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uint8_t usb_communications_capable : 1;
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uint8_t unconstrained_power : 1;
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uint8_t higher_capability : 1;
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uint8_t dual_role_power : 1;
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uint8_t fixed_supply : 2;
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} fix;
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struct
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{
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uint32_t operating_current : 10;
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uint32_t min_voltage : 10;
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uint32_t max_voltage : 10;
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uint8_t variablesupply : 2;
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} var;
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struct
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{
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uint32_t operating_power : 10;
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uint32_t min_voltage : 10;
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uint32_t max_voltage : 10;
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uint8_t battery : 2;
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} bat;
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}
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USB_PD_SNK_PDO_TYPEDEF end_packed_struct;
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typedef union
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{
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uint8_t bytes[4];
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struct
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{
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uint32_t maxcurrent : 10; /* bits 9..0 */
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uint32_t operatingcurrent : 10;
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uint8_t reserved_22_20 : 3;
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uint8_t unchunkedmess_sup : 1;
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uint8_t usbsuspend : 1;
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uint8_t usbcomcap : 1;
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uint8_t capamismatch : 1;
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uint8_t giveback : 1;
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uint8_t object_pos : 3; /* bits 30..28 (3-bit) */
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uint8_t reserved_31 : 1; /* bits 31 */
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} b;
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}
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STUSB_GEN1S_RDO_REG_STATUS_REGTYPEDEF end_packed_struct;
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: stusb4500_register
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*
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* Description:
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* Register the STUSB4500 character device as 'devpath'
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*
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* Input Parameters:
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* devpath - The full path to the driver to register. E.g.,
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* "/dev/stusb4500_0"
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* i2c - An instance of the I2C interface to use to communicate with
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* STUSB4500
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* addr - The I2C address of the STUSB4500.
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno value on failure.
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*
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****************************************************************************/
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int stusb4500_register(FAR const char *devpath, FAR struct i2c_master_s *i2c,
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uint8_t addr);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __INCLUDE_NUTTX_USB_FUSB303_H */
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