/*********************************************************************//* sport.h v0.00                                                     *//* Copyright (c) 1997 Texas Instruments Incorporated                 *//*********************************************************************//*********************************************************************//* STANDARD SERIAL PORT, BUFFERED SERIAL PORT, AND HOST PORT         *//* INTERFACE FUNCTIONS, MACROS, AND DATA STRUCTURES                  *//*                                                                   *//* The MACROS defined here are dependent on the symbol definitions   *//* contained in mmregs.h.                                            *//*********************************************************************//*********************************************************************//* INCLUDE MEMORY-MAPPED REGISTER DEFINITIONS                        *//*********************************************************************/#include "regs.h"/**********************************************************************//* SP_MASK(txm, mcm, fsm, fo, dlb) - generates a mask for             *//*         setting serial port control register.                      *//*           txm       -   transmit mode (ext or int frame sync)      *//*           mcm       -   clock mode (ext or int clock source)       *//*           fsm       -   frame sync mode (continuous or burst)      *//*           fo        -   format (data sz 0 = 16 bit or 1 = 8 bits)  *//*           dlb       -   digital loop back mode (disable/enable)    *//**********************************************************************/#define SP_MASK(txm, mcm, fsm, fo, dlb)\	((txm  ? (MASK_BIT(TXM)  | WORD_SIZE):~MASK_BIT(TXM)) &\ 	 (mcm  ? (MASK_BIT(MCM)  | WORD_SIZE):~MASK_BIT(MCM))&\         (fsm  ? (MASK_BIT(FSM)  | WORD_SIZE):~MASK_BIT(FSM)) &\         (fo   ? (MASK_BIT(FO)   | WORD_SIZE):~MASK_BIT(FO)) &\         (dlb  ? (MASK_BIT(DLB)  | WORD_SIZE):~MASK_BIT(DLB))/**********************************************************************//* SP_RESET(port) - RESETS SERIAL PORT                                *//*  port   - serail port number (selects which serial port)           *//**********************************************************************/#define SP_RESET(port)\      *(unsigned int *)SP_ADDR(port) &= 0x0000/**********************************************************************//* SP_TX_ENABLE(port) - ENABLES SERIAL PORT TRANSMIT                  *//*  port  - serial port number (selects which serial port)            *//**********************************************************************/#define SP_TX_ENABLE(port)\      *(unsigned int *)SP_ADDR(port) |= MASK_BIT(XRST)/**********************************************************************//* SP_TX_RESET(port) - RESETS SERIAL PORT TRANSMIT                    *//*  port  - serial port number (selects which serial port)            *//**********************************************************************/#define SP_TX_RESET(port)\      *(unsigned int *)SP_ADDR(port) &= ~MASK_BIT(XRST)/**********************************************************************//* SP_RX_ENABLE(port) - ENABLES SERIAL PORT RECEIVE                   *//*  port  - serial port number (selects which serial port)            *//**********************************************************************/#define SP_RX_ENABLE(port)\      *(unsigned int *)SP_ADDR(port) |= MASK_BIT(RRST)/**********************************************************************//* SP_RX_RESET(port) - RESETS SERIAL PORT RECEIVE                     *//*  port  - serial port number (selects which serial port)            *//**********************************************************************/#define SP_RX_RESET(port)\      *(unsigned int *)SP_ADDR(port) &= ~MASK_BIT(RRST)/**********************************************************************//* SP_START(port,start) - starts serial port receive/xmit for given   *//*   serial port                                                      *//* port - serial port number (selects which port)                     *//* start - 1/2/3: starts rx/tx/both                                   *//**********************************************************************/#define SP_START(port, start)\	LOAD_FIELD(SP_ADDR(port), start, RRST, 2)/**********************************************************************//* SP_INIT(port, ctrl, start)                                         *//*  port - serial port number (selects which serial port)             *//*  ctrl - mask to set serial port control register                   *//*  start - 1/2/3: start rx/tx/both                                   *//**********************************************************************/#define SP_INIT( port, ctrl)\   { *(unsigned int *)SP_ADDR(port) &= 0x0000; \     *(unsigned int *)SP_ADDR(port) |= (~(MASK_BIT(RRST) | MASK_BIT(XRST)))\                                        & ctrl;   \     *(unsigned int *)SP_ADDR(port) |= ctrl;}/**********************************************************************//* SP_READ(port, size)   - reads data from serial port                *//*  port  - serial port number (selects which port)                   *//*  size  - data size of item to be read in bits                      *//**********************************************************************/#define SP_READ(port, size)\      ((*(unsigned int *)DRR_ADDR(port)) & (~(WORD_SIZE << size))) /**********************************************************************//* SP_WRITE(port,value,size)  -  writes data to serial port transmit  *//*  port  - serial port #                                             *//*  value - data to be written out to serial port                     *//*  size  - data size in bits                                         *//**********************************************************************/#define SP_WRITE(port, value, size)\        *(unsigned int *)DXR_ADDR(port) = value & (~(WORD_SIZE << size))