csl_tmrgethwsetup.c

TI的DM6446的硬件平台搭建的相关例子

/*  ============================================================================
 *   Copyright (c) Texas Instruments Inc 2002, 2003, 2004, 2005
 *
 *   Use of this software is controlled by the terms and conditions found in the
 *   license agreement under which this software has been supplied.
 *   ===========================================================================
 */

/** @file csl_tmrGetHwSetup.c
 *
 *  @brief    File for functional layer of CSL API @a CSL_tmrGetHwSetup()
 *
 *  Description
 *    - The @a CSL_tmrGetHwSetup() function definition & it's associated
 *      functions
 *
 *  Path: \\(CSLPATH)\\ipmodules\\timer\\src
 */

/* =============================================================================
 *  Revision History
 *  ===============
 *  1-Sept-2004 HMM File Created.
 * =============================================================================
 */

#include <csl_tmr.h>

/** ============================================================================
 *   @n@b CSL_tmrGetHwSetup
 *
 *   @b Description
 *   @n Gets the current setup of TMR.
 *
 *   @b Arguments
 *   @verbatim
            hTmr            Handle to the TMR instance

            setup           Pointer to setup structure which contains the
                            setup information of TMR.
     @endverbatim
 *
 *   <b> Return Value </b>  CSL_Status
 *   @li                    CSL_SOK             - Setup info load successful.
 *   @li                    CSL_ESYS_BADHANDLE  - Invalid handle
 *   @li                    CSL_ESYS_INVPARAMS  - Invalid parameter
 *
 *   <b> Pre Condition </b>
 *   @n  None
 *
 *   <b> Post Condition </b>
 *   @n  The registers of the specified TMR instance will be setup.
 *
 *   @b Modifies
 *   @n Hardware registers of the specified TMR instance.
 *
 *   @b Example
 *   @verbatim
        CSL_TmrHandle       hTmr;
        CSL_TmrHwSetup      setup;
        CSL_Status          status;

        status = CSL_tmrGetHwSetup (hTmr, &setup);

     @endverbatim
 *  ============================================================================
 */
#pragma CODE_SECTION (CSL_tmrGetHwSetup, ".text:csl_section:tmr");
CSL_Status CSL_tmrGetHwSetup (
    CSL_TmrHandle               hTmr,
    CSL_TmrHwSetup             *hwSetup
)
{
    if (hTmr == NULL) {
        return CSL_ESYS_BADHANDLE;
    }

    if (hwSetup == NULL) {
        return CSL_ESYS_INVPARAMS;
    }

    /* Get GPINT_GPEN configuration */
    hwSetup->tmrGpInt34Eni =
            (Bool) CSL_FEXT(hTmr->regs->GPINT_GPEN, \
                            TMR_GPINT_GPEN_GPINT34_ENI);

    hwSetup->tmrGpInt34Eno =
            (Bool) CSL_FEXT(hTmr->regs->GPINT_GPEN, \
                            TMR_GPINT_GPEN_GPINT34_ENO);

    hwSetup->tmrGpInt34Invi =
            (Bool) CSL_FEXT(hTmr->regs->GPINT_GPEN, \
                            TMR_GPINT_GPEN_GPINT34_INVI);

    hwSetup->tmrGpInt34Invo =
            (Bool) CSL_FEXT(hTmr->regs->GPINT_GPEN, \
                            TMR_GPINT_GPEN_GPINT34_INVO);

    hwSetup->tmrGpInt12Eni =
            (Bool) CSL_FEXT(hTmr->regs->GPINT_GPEN, \
                            TMR_GPINT_GPEN_GPINT12_ENI);

    hwSetup->tmrGpInt12Eno =
            (Bool) CSL_FEXT(hTmr->regs->GPINT_GPEN, \
                            TMR_GPINT_GPEN_GPINT12_ENO);

    hwSetup->tmrGpInt12Invi =
            (Bool) CSL_FEXT(hTmr->regs->GPINT_GPEN, \
                            TMR_GPINT_GPEN_GPINT12_INVI);

    hwSetup->tmrGpInt12Invo =
            (Bool) CSL_FEXT(hTmr->regs->GPINT_GPEN, \
                            TMR_GPINT_GPEN_GPINT12_INVO);

    hwSetup->tmrGpIoEni34 =
            (Bool) CSL_FEXT(hTmr->regs->GPINT_GPEN, \
                            TMR_GPINT_GPEN_GPIO_ENI34);

    hwSetup->tmrGpIoEno34 =
            (Bool) CSL_FEXT(hTmr->regs->GPINT_GPEN, \
                            TMR_GPINT_GPEN_GPIO_ENO34);

    hwSetup->tmrGpIoEni12 =
            (Bool) CSL_FEXT(hTmr->regs->GPINT_GPEN, \
                            TMR_GPINT_GPEN_GPIO_ENI12);

    hwSetup->tmrGpIoEno12 =
            (Bool) CSL_FEXT(hTmr->regs->GPINT_GPEN, \
                            TMR_GPINT_GPEN_GPIO_ENO12);

    /* Get the GPTDAT_GPDIR configuration */
    hwSetup->tmrGpDirDiro34 =
            (Bool) CSL_FEXT(hTmr->regs->GPTDAT_GPDIR, \
                            TMR_GPTDAT_GPDIR_GPIO_DIRO34);

    hwSetup->tmrGpDirDiri34 =
            (Bool) CSL_FEXT(hTmr->regs->GPTDAT_GPDIR, \
                            TMR_GPTDAT_GPDIR_GPIO_DIRI34);

    hwSetup->tmrGpDirDiro12 =
            (Bool) CSL_FEXT(hTmr->regs->GPTDAT_GPDIR, \
                            TMR_GPTDAT_GPDIR_GPIO_DIRO12);

    hwSetup->tmrGpDirDiri12 =
            (Bool) CSL_FEXT(hTmr->regs->GPTDAT_GPDIR, \
                            TMR_GPTDAT_GPDIR_GPIO_DIRI12);

    /* Get the Period register's values */
    hwSetup->tmrTimerPeriod12 = hTmr->regs->PRD12;
    hwSetup->tmrTimerPeriod34 = hTmr->regs->PRD34;

    /* Get the counter register's  values*/
    hwSetup->tmrTimerCounter12 = hTmr->regs->TIM12;
    hwSetup->tmrTimerCounter34 = hTmr->regs->TIM34;

    /* Get the TCR34 register  configurations */
    hwSetup->tmrIpGate34 =
            (CSL_TmrIpGate) CSL_FEXT(hTmr->regs->TCR, TMR_TCR_TIEN34);
    hwSetup->tmrClksrc34 =
            (CSL_TmrClksrc) CSL_FEXT(hTmr->regs->TCR, TMR_TCR_CLKSRC34);
    hwSetup->tmrPulseWidth34 =
            (CSL_TmrPulseWidth) CSL_FEXT(hTmr->regs->TCR, TMR_TCR_PWID34);
    hwSetup->tmrClockPulse34 =
            (CSL_TmrClockPulse) CSL_FEXT(hTmr->regs->TCR, TMR_TCR_CP34);
    hwSetup->tmrInvInp34 =
            (CSL_TmrInvInp) CSL_FEXT(hTmr->regs->TCR, TMR_TCR_INVINP34);
    hwSetup->tmrInvOutp34 =
            (CSL_TmrInvOutp) CSL_FEXT(hTmr->regs->TCR, TMR_TCR_INVOUTP34);

    /* Get the TCR12 register  configurations */
    hwSetup->tmrIpGate12 =
            (CSL_TmrIpGate) CSL_FEXT(hTmr->regs->TCR, TMR_TCR_TIEN12);
    hwSetup->tmrClksrc12 =
            (CSL_TmrClksrc) CSL_FEXT(hTmr->regs->TCR, TMR_TCR_CLKSRC12);
    hwSetup->tmrPulseWidth12 =
            (CSL_TmrPulseWidth) CSL_FEXT(hTmr->regs->TCR, TMR_TCR_PWID12);
    hwSetup->tmrClockPulse12 =
            (CSL_TmrClockPulse) CSL_FEXT(hTmr->regs->TCR, TMR_TCR_CP12);
    hwSetup->tmrInvInp12 =
            (CSL_TmrInvInp) CSL_FEXT(hTmr->regs->TCR, TMR_TCR_INVINP12);
    hwSetup->tmrInvOutp12 =
            (CSL_TmrInvOutp) CSL_FEXT(hTmr->regs->TCR, TMR_TCR_INVOUTP12);

    /* Get the TGCR register  configurations */
    hwSetup->tmrPreScalarCounter34 = (Uint8) CSL_FEXT(hTmr->regs->TCR, \
                                                      TMR_TGCR_PSC34);
    /* Get the operation mode */
    hwSetup->tmrTimerMode = (CSL_TmrMode) CSL_FEXT(hTmr->regs->TCR, \
                                                   TMR_TGCR_TIMMODE);
    return CSL_SOK;
}