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view src/cs/drivers/drv_app/uart/faxdata.h @ 268:f2e52cab0a73

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abb_inth.c: check all interrupt causes, not just one The original code used if - else if - else if etc constructs, thus the first detected interrupt was the only one handled. However, Iota ITSTATREG is a clear-on-read register, thus if we only handle the first detected interrupt and skip checking the others, then the other interrupts will be lost, if more than one interrupt happened to occur in one ABB interrupt handling cycle - a form of rare race condition. Change the code to check all interrupts that were read in this cycle.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 13 Jun 2021 18:17:53 +0000
parents 4e78acac3d88
children
line wrap: on
line source

/*******************************************************************************
 *
 * FAXDATA.H
 *
 * This module defines constants used by UART and USART fax/data drivers.
 *
 * (C) Texas Instruments 1999
 *
 ******************************************************************************/

#ifndef __FAXDATA_H__
#define __FAXDATA_H__

/*
 * Returned values.
 */

#define FD_OK            ( 0)
#define FD_SUSPENDED     (-1)
#define FD_NOT_SUPPORTED (-2)
#define FD_NOT_READY     (-3)
#define FD_INTERNAL_ERR  (-9)

/*
 * Line status.
 */

#define FD_LINE_ON  (1)
#define FD_LINE_OFF (0)

/*
 * Signals used in UAF_xxx_GetLineState and UAF_xxx_SetLineState.
 */

#define CTS    ( 0) /* set              */
#define RTS    ( 1) /* get              */
#define DSR    ( 2) /* set              */
#define DTR    ( 3) /* get              */
#define DCD    ( 4) /* set              */
#define BRK    ( 5) /* set/get          */
#define ESC    ( 6) /* get              */
#define TXSTP  ( 7) /* get              */
#define RXSTP  ( 8) /* get              */
#define BRKLEN ( 9) /* set/get (8 bits) */
#define RXBLEV (17) /* get (12 bits)    */
#define SA     (29) /* set/get          */
#define SB     (30) /* set/get          */
#define X      (31) /* set/get          */

#define RI (1)

/*
 * Size of the circular buffers used in the driver.
 */

#define FD_MAX_BUFFER_SIZE (512) /* In bytes. */

/*
 * Type of the returned value for each function.
 */

typedef short T_FDRET;

/*
 * Baud rates.
 */

typedef enum {
    FD_BAUD_AUTO,
    FD_BAUD_75,
    FD_BAUD_150,
    FD_BAUD_300,
    FD_BAUD_600,
    FD_BAUD_1200,
    FD_BAUD_2400,
    FD_BAUD_4800,
    FD_BAUD_7200,
    FD_BAUD_9600,
    FD_BAUD_14400,
    FD_BAUD_19200,
    FD_BAUD_28800,
    FD_BAUD_33900,
    FD_BAUD_38400,
    FD_BAUD_57600,
    FD_BAUD_115200,
    FD_BAUD_203125,
    FD_BAUD_406250,
    FD_BAUD_812500
} T_baudrate;

/*
 * Bits per character.
 */

typedef enum {
    bpc_7,
    bpc_8
} T_bitsPerCharacter;

/*
 * Stop bits.
 */

typedef enum {
    sb_1,
    sb_2
} T_stopBits;

/*
 * Parity.
 */

typedef enum {
    pa_none,
    pa_even,
    pa_odd,
    pa_space
} T_parity;

/*
 * Flow control mode.
 */

typedef enum {
    fc_none,
    fc_rts,
    fc_dtr,
    fc_xoff
} T_flowCtrlMode;

/*
 * Suspend parameter used in UAF_xxx_ReadData and UAF_xxx_WriteData.
 */

typedef enum {
    sm_noSuspend,
    sm_suspend
} T_suspendMode;

/*
 * Install mode parameter used in UAF_xxx_ReadData and UAF_xxx_WriteData.
 */

typedef enum {
    rm_notDefined,
    rm_reInstall,
    rm_noInstall
} T_reInstMode;

#endif /* __FAXDATA_H__ */