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Diffstat (limited to 'include/VBox/vmm/pdmserialifs.h')
| -rw-r--r-- | include/VBox/vmm/pdmserialifs.h | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/include/VBox/vmm/pdmserialifs.h b/include/VBox/vmm/pdmserialifs.h new file mode 100644 index 00000000..4ae13dfc --- /dev/null +++ b/include/VBox/vmm/pdmserialifs.h @@ -0,0 +1,239 @@ +/** @file + * PDM - Pluggable Device Manager, Serial port related interfaces. + */ + +/* + * Copyright (C) 2018-2020 Oracle Corporation + * + * This file is part of VirtualBox Open Source Edition (OSE), as + * available from http://www.virtualbox.org. This file is free software; + * you can redistribute it and/or modify it under the terms of the GNU + * General Public License (GPL) as published by the Free Software + * Foundation, in version 2 as it comes in the "COPYING" file of the + * VirtualBox OSE distribution. VirtualBox OSE is distributed in the + * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + */ + +#ifndef VBOX_INCLUDED_vmm_pdmserialifs_h +#define VBOX_INCLUDED_vmm_pdmserialifs_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <VBox/types.h> + +RT_C_DECLS_BEGIN + +/** @defgroup grp_pdm_ifs_serial PDM Serial Port Interfaces + * @ingroup grp_pdm_interfaces + * @{ + */ + + +/** @name Bit mask definitions for status line type. + * @{ */ +#define PDMISERIALPORT_STS_LINE_DCD RT_BIT(0) +#define PDMISERIALPORT_STS_LINE_RI RT_BIT(1) +#define PDMISERIALPORT_STS_LINE_DSR RT_BIT(2) +#define PDMISERIALPORT_STS_LINE_CTS RT_BIT(3) +/** @} */ + +/** Pointer to a serial port interface. */ +typedef struct PDMISERIALPORT *PPDMISERIALPORT; +/** + * Serial port interface (down). + */ +typedef struct PDMISERIALPORT +{ + /** + * Notifies the upper device/driver that data is available for reading. + * + * @returns VBox status code. + * @param pInterface Pointer to the interface structure containing the called function pointer. + * @param cbAvail The amount of data available to be written. + */ + DECLR3CALLBACKMEMBER(int, pfnDataAvailRdrNotify, (PPDMISERIALPORT pInterface, size_t cbAvail)); + + /** + * Notifies the upper device/driver that all data was sent. + * + * @returns VBox status code. + * @param pInterface Pointer to the interface structure containing the called function pointer. + */ + DECLR3CALLBACKMEMBER(int, pfnDataSentNotify, (PPDMISERIALPORT pInterface)); + + /** + * Try to read data from the device/driver above for writing. + * + * @returns VBox status code. + * @param pInterface Pointer to the interface structure containing the called function pointer. + * @param pvBuf Where to store the read data. + * @param cbRead How much to read. + * @param pcbRead Where to store the amount of data actually read on success. + */ + DECLR3CALLBACKMEMBER(int, pfnReadWr, (PPDMISERIALPORT pInterface, void *pvBuf, size_t cbRead, size_t *pcbRead)); + + /** + * Notify the device/driver when the status lines changed. + * + * @returns VBox status code. + * @param pInterface Pointer to the interface structure containing the called function pointer. + * @param fNewStatusLines New state of the status line pins. + * @thread Any thread. + */ + DECLR3CALLBACKMEMBER(int, pfnNotifyStsLinesChanged, (PPDMISERIALPORT pInterface, uint32_t fNewStatusLines)); + + /** + * Notify the device/driver that a break condition occurred. + * + * @returns VBox statsus code. + * @param pInterface Pointer to the interface structure containing the called function pointer. + * @thread Any thread. + */ + DECLR3CALLBACKMEMBER(int, pfnNotifyBrk, (PPDMISERIALPORT pInterface)); + +} PDMISERIALPORT; +/** PDMISERIALPORT interface ID. */ +#define PDMISERIALPORT_IID "44540323-06ca-44c1-8eb2-f5a387704dbd" + + +/** + * Supported parity modes. + */ +typedef enum PDMSERIALPARITY +{ + /** Invalid parity setting. */ + PDMSERIALPARITY_INVALID = 0, + /** No parity. */ + PDMSERIALPARITY_NONE, + /** Even parity. */ + PDMSERIALPARITY_EVEN, + /** Odd parity. */ + PDMSERIALPARITY_ODD, + /** Mark parity. */ + PDMSERIALPARITY_MARK, + /** Space parity. */ + PDMSERIALPARITY_SPACE, + /** 32bit hack. */ + PDMSERIALPARITY_32BIT_HACK = 0x7fffffff +} PDMSERIALPARITY; + + +/** + * Supported number of stop bits. + */ +typedef enum PDMSERIALSTOPBITS +{ + /** Invalid stop bits setting. */ + PDMSERIALSTOPBITS_INVALID = 0, + /** One stop bit is used. */ + PDMSERIALSTOPBITS_ONE, + /** 1.5 stop bits are used. */ + PDMSERIALSTOPBITS_ONEPOINTFIVE, + /** 2 stop bits are used. */ + PDMSERIALSTOPBITS_TWO, + /** 32bit hack. */ + PDMSERIALSTOPBITS_32BIT_HACK = 0x7fffffff +} PDMSERIALSTOPBITS; + + +/** Pointer to a serial interface. */ +typedef struct PDMISERIALCONNECTOR *PPDMISERIALCONNECTOR; +/** + * Serial interface (up). + * Pairs with PDMISERIALPORT. + */ +typedef struct PDMISERIALCONNECTOR +{ + /** + * Notifies the lower layer that data is available for writing. + * + * @returns VBox status code. + * @param pInterface Pointer to the interface structure containing the called function pointer. + */ + DECLR3CALLBACKMEMBER(int, pfnDataAvailWrNotify, (PPDMISERIALCONNECTOR pInterface)); + + /** + * Try to read data from the underyling driver. + * + * @returns VBox status code. + * @param pInterface Pointer to the interface structure containing the called function pointer. + * @param pvBuf Where to store the read data. + * @param cbRead How much to read. + * @param pcbRead Where to store the amount of data actually read on success. + */ + DECLR3CALLBACKMEMBER(int, pfnReadRdr, (PPDMISERIALCONNECTOR pInterface, void *pvBuf, size_t cbRead, size_t *pcbRead)); + + /** + * Change device parameters. + * + * @returns VBox status code. + * @param pInterface Pointer to the interface structure containing the called function pointer. + * @param uBps Speed of the serial connection. (bits per second) + * @param enmParity Parity method. + * @param cDataBits Number of data bits. + * @param enmStopBits Number of stop bits. + * @thread Any thread. + */ + DECLR3CALLBACKMEMBER(int, pfnChgParams, (PPDMISERIALCONNECTOR pInterface, uint32_t uBps, + PDMSERIALPARITY enmParity, unsigned cDataBits, + PDMSERIALSTOPBITS enmStopBits)); + + /** + * Set the state of the modem lines. + * + * @returns VBox status code. + * @param pInterface Pointer to the interface structure containing the called function pointer. + * @param fRts Set to true to make the Request to Send line active otherwise to 0. + * @param fDtr Set to true to make the Data Terminal Ready line active otherwise 0. + * @thread Any thread. + */ + DECLR3CALLBACKMEMBER(int, pfnChgModemLines, (PPDMISERIALCONNECTOR pInterface, bool fRts, bool fDtr)); + + /** + * Changes the TD line into the requested break condition. + * + * @returns VBox status code. + * @param pInterface Pointer to the interface structure containing the called function pointer. + * @param fBrk Set to true to let the device send a break false to put into normal operation. + * @thread Any thread. + */ + DECLR3CALLBACKMEMBER(int, pfnChgBrk, (PPDMISERIALCONNECTOR pInterface, bool fBrk)); + + /** + * Queries the current state of the status lines. + * + * @returns VBox status code. + * @param pInterface Pointer to the interface structure containing the called function pointer. + * @param pfStsLines Where to store the status line states on success. + */ + DECLR3CALLBACKMEMBER(int, pfnQueryStsLines, (PPDMISERIALCONNECTOR pInterface, uint32_t *pfStsLines)); + + /** + * Flushes the indicated queues. + * + * @returns VBox status code. + * @param pInterface Pointer to the interface structure containing the called function pointer. + * @param fQueueRecv Flag whether to flush the receive queue. + * @param fQueueXmit Flag whether to flush the transmit queue. + */ + DECLR3CALLBACKMEMBER(int, pfnQueuesFlush, (PPDMISERIALCONNECTOR pInterface, bool fQueueRecv, bool fQueueXmit)); + +} PDMISERIALCONNECTOR; +/** PDMIMEDIA interface ID. */ +#define PDMISERIALCONNECTOR_IID "d024f170-c00d-11e8-b568-0800200c9a66" + +/** @} */ + +RT_C_DECLS_END + +#endif /* !VBOX_INCLUDED_vmm_pdmserialifs_h */ |