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242 lines
8.6 KiB
C
242 lines
8.6 KiB
C
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/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011,2012,2013 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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---
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A special exception to the GPL can be applied should you wish to distribute
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a combined work that includes ChibiOS/RT, without being obliged to provide
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the source code for any proprietary components. See the file exception.txt
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for full details of how and when the exception can be applied.
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*/
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/**
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* @file serial_usb.h
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* @brief Serial over USB Driver macros and structures.
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*
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* @addtogroup SERIAL_USB
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* @{
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*/
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#ifndef _SERIAL_USB_H_
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#define _SERIAL_USB_H_
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#if HAL_USE_SERIAL_USB || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver constants. */
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/*===========================================================================*/
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/**
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* @name CDC specific messages.
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* @{
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*/
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#define CDC_SEND_ENCAPSULATED_COMMAND 0x00
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#define CDC_GET_ENCAPSULATED_RESPONSE 0x01
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#define CDC_SET_COMM_FEATURE 0x02
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#define CDC_GET_COMM_FEATURE 0x03
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#define CDC_CLEAR_COMM_FEATURE 0x04
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#define CDC_SET_AUX_LINE_STATE 0x10
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#define CDC_SET_HOOK_STATE 0x11
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#define CDC_PULSE_SETUP 0x12
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#define CDC_SEND_PULSE 0x13
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#define CDC_SET_PULSE_TIME 0x14
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#define CDC_RING_AUX_JACK 0x15
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#define CDC_SET_LINE_CODING 0x20
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#define CDC_GET_LINE_CODING 0x21
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#define CDC_SET_CONTROL_LINE_STATE 0x22
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#define CDC_SEND_BREAK 0x23
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#define CDC_SET_RINGER_PARMS 0x30
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#define CDC_GET_RINGER_PARMS 0x31
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#define CDC_SET_OPERATION_PARMS 0x32
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#define CDC_GET_OPERATION_PARMS 0x33
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/** @} */
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/**
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* @name Line Control bit definitions.
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* @{
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*/
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#define LC_STOP_1 0
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#define LC_STOP_1P5 1
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#define LC_STOP_2 2
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#define LC_PARITY_NONE 0
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#define LC_PARITY_ODD 1
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#define LC_PARITY_EVEN 2
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#define LC_PARITY_MARK 3
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#define LC_PARITY_SPACE 4
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/** @} */
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/*===========================================================================*/
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/* Driver pre-compile time settings. */
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/*===========================================================================*/
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/**
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* @name SERIAL_USB configuration options
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* @{
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*/
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/**
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* @brief Serial over USB buffers size.
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* @details Configuration parameter, the buffer size must be a multiple of
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* the USB data endpoint maximum packet size.
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* @note The default is 256 bytes for both the transmission and receive
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* buffers.
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*/
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#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
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#define SERIAL_USB_BUFFERS_SIZE 256
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#endif
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/** @} */
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/*===========================================================================*/
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/* Derived constants and error checks. */
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/*===========================================================================*/
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#if !HAL_USE_USB || !CH_USE_QUEUES || !CH_USE_EVENTS
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#error "Serial over USB Driver requires HAL_USE_USB, CH_USE_QUEUES, "
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"CH_USE_EVENTS"
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#endif
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/*===========================================================================*/
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/* Driver data structures and types. */
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/*===========================================================================*/
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/**
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* @brief Type of Line Coding structure.
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*/
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typedef struct {
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uint8_t dwDTERate[4];
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uint8_t bCharFormat;
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uint8_t bParityType;
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uint8_t bDataBits;
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} cdc_linecoding_t;
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/**
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* @brief Driver state machine possible states.
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*/
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typedef enum {
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SDU_UNINIT = 0, /**< Not initialized. */
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SDU_STOP = 1, /**< Stopped. */
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SDU_READY = 2 /**< Ready. */
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} sdustate_t;
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/**
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* @brief Structure representing a serial over USB driver.
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*/
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typedef struct SerialUSBDriver SerialUSBDriver;
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/**
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* @brief Serial over USB Driver configuration structure.
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* @details An instance of this structure must be passed to @p sduStart()
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* in order to configure and start the driver operations.
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*/
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typedef struct {
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/**
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* @brief USB driver to use.
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*/
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USBDriver *usbp;
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/**
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* @brief Bulk IN endpoint used for outgoing data transfer.
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*/
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usbep_t bulk_in;
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/**
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* @brief Bulk OUT endpoint used for incoming data transfer.
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*/
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usbep_t bulk_out;
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/**
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* @brief Interrupt IN endpoint used for notifications.
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*/
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usbep_t int_in;
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} SerialUSBConfig;
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/**
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* @brief @p SerialDriver specific data.
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*/
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#define _serial_usb_driver_data \
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_base_asynchronous_channel_data \
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/* Driver state.*/ \
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sdustate_t state; \
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/* Input queue.*/ \
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InputQueue iqueue; \
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/* Output queue.*/ \
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OutputQueue oqueue; \
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/* Input buffer.*/ \
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uint8_t ib[SERIAL_USB_BUFFERS_SIZE]; \
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/* Output buffer.*/ \
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uint8_t ob[SERIAL_USB_BUFFERS_SIZE]; \
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/* End of the mandatory fields.*/ \
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/* Current configuration data.*/ \
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const SerialUSBConfig *config;
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/**
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* @brief @p SerialUSBDriver specific methods.
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*/
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#define _serial_usb_driver_methods \
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_base_asynchronous_channel_methods
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/**
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* @extends BaseAsynchronousChannelVMT
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*
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* @brief @p SerialDriver virtual methods table.
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*/
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struct SerialUSBDriverVMT {
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_serial_usb_driver_methods
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};
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/**
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* @extends BaseAsynchronousChannel
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*
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* @brief Full duplex serial driver class.
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* @details This class extends @p BaseAsynchronousChannel by adding physical
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* I/O queues.
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*/
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struct SerialUSBDriver {
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/** @brief Virtual Methods Table.*/
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const struct SerialUSBDriverVMT *vmt;
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_serial_usb_driver_data
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};
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/*===========================================================================*/
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/* Driver macros. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* External declarations. */
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/*===========================================================================*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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void sduInit(void);
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void sduObjectInit(SerialUSBDriver *sdp);
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void sduStart(SerialUSBDriver *sdup, const SerialUSBConfig *config);
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void sduStop(SerialUSBDriver *sdup);
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void sduConfigureHookI(SerialUSBDriver *sdup);
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bool_t sduRequestsHook(USBDriver *usbp);
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void sduDataTransmitted(USBDriver *usbp, usbep_t ep);
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void sduDataReceived(USBDriver *usbp, usbep_t ep);
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void sduInterruptTransmitted(USBDriver *usbp, usbep_t ep);
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#ifdef __cplusplus
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}
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#endif
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#endif /* HAL_USE_SERIAL_USB */
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#endif /* _SERIAL_USB_H_ */
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/** @} */
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