tvencoderapi.c

6410BSP3

//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
//
// Use of this sample source code is subject to the terms of the Microsoft
// license agreement under which you licensed this sample source code. If
// you did not accept the terms of the license agreement, you are not
// authorized to use this sample source code. For the terms of the license,
// please see the license agreement between you and Microsoft or, if applicable,
// see the LICENSE.RTF on your install media or the root of your tools installation.
// THE SAMPLE SOURCE CODE IS PROVIDED "AS IS", WITH NO WARRANTIES OR INDEMNITIES.
//
//
// Copyright (c) Samsung Electronics. Co. LTD.  All rights reserved.
//
/*++
THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
PARTICULAR PURPOSE.

Module Name:    TVEncoderAPI.c

Abstract:       Implementation of Video Driver
                This module handle TVEncoder

Functions:


Notes:


--*/

#include <bsp.h>
#include "SVEngine.h"

BOOL SVE_TVEncoder_API_Proc(
    DWORD hOpenContext,
    DWORD dwCode,
    PBYTE pBufIn,
    DWORD dwLenIn,
    PBYTE pBufOut,
    DWORD dwLenOut,
    PDWORD pdwActualOut
    )
{
    SVEnginePowerContext *pPMCtxt;
    BOOL bRet = TRUE;

    VDE_MSG((_T("[VDE] ++SVE_TVEncoder_API_Proc()\n\r")));

    pPMCtxt = SVE_get_power_context();

    //-------------------------------------------------------------
    // Check OpenContext of Caller have the right to access to H/W Resource
    //-------------------------------------------------------------
    switch(dwCode)
    {
    case SVE_TVENC_SET_INTERFACE_PARAM:
    case SVE_TVENC_SET_ENCODER_ON:
    case SVE_TVENC_SET_ENCODER_OFF:
    case SVE_TVENC_GET_INTERFACE_STATUS:
        bRet = SVE_resource_compare_TVScaler_TVEncoder(hOpenContext);
        if (!bRet)
        {
            VDE_ERR((_T("[VDE:ERR] SVE_TVEncoder_API_Proc(0x%08x) : No Right to Access to H/W Resource\r\n"), dwCode));
            goto CleanUp;
        }
        break;
    default:
        DEBUGMSG(VDE_ZONE_ERROR, (TEXT("[VDE:ERR] Invalid IOCTL code\n")));
        bRet = FALSE;
        goto CleanUp;
    }


    //--------------------------------
    // Processing IOCTL for TV Encoder
    //--------------------------------

    switch(dwCode)
    {
        case SVE_TVENC_SET_INTERFACE_PARAM:
        {
            SVEARG_TVENC_PARAMETER *pArg;

            VDE_MSG((_T("[VDE] SVE_TVEncoder_API_Proc() : SVE_TVENC_SET_INTERFACE_PARAM\n\r")));

            if(!pBufIn)
            {
                DEBUGMSG(VDE_ZONE_ERROR,(TEXT("Invalid Buffer : pBufIn:0x%x\n"), pBufIn));
                bRet = FALSE;
                break;
            }
            pArg = (SVEARG_TVENC_PARAMETER *)pBufIn;

            if (pPMCtxt->bPowerOn)
            {
                if (TVEnc_get_output_state() == TVENC_ENCODER_ON)        // TV Encoder Running
                {
                    VDE_ERR((_T("[VDE:ERR] SVE_TVEncoder_API_Proc() : SVE_TVENC_SET_INTERFACE_PARAM : TV Encoder is Running\n\r")));
                    bRet = FALSE;
                    break;
                }

                TVEnc_initialize(pArg->dwOutputType, pArg->dwOutputStandard, pArg->dwMVisionPattern, pArg->dwSrcWidth, pArg->dwSrcHeight);
            }

            // Backup for PM
            memcpy(&pPMCtxt->tTVEncParam, pArg, sizeof(SVEARG_TVENC_PARAMETER));

            break;
        }

        case SVE_TVENC_SET_ENCODER_ON:    // Start TV Scaler & Enable TV Encoder
        {
            VDE_MSG((_T("[VDE] SVE_TVEncoder_API_Proc() : SVE_TVENC_SET_ENCODER_ON\n\r")));

            if (pPMCtxt->bPowerOn)
            {
                //------------------
                // Enable TV Encoder
                //------------------
                if (TVEnc_get_output_state() == TVENC_ENCODER_ON)        // TV Encoder Running
                {
                    VDE_ERR((_T("[VDE:ERR] SVE_TVEncoder_API_Proc() : SVE_TVENC_SET_ENCODER_ON : TV Encoder is Running\n\r")));
                    //bRet = FALSE;    // Treat this as Non-Error
                }
                else
                {
                    //TVEnc_disable_interrupt();
                    TVEnc_output_onoff(TVENC_ENCODER_ON);
                }

                //--------------
                // Start TV Scaler
                //--------------
                if (TVSC_get_processing_state() == TVSC_BUSY)        // TV Scaler Running
                {
                    VDE_ERR((_T("[VDE:ERR] SVE_TVEncoder_API_Proc() : SVE_TVENC_SET_ENCODER_ON : TV Scaler is Running\n\r")));
                    bRet = FALSE;
                    break;
                }

                TVSC_enable_interrupt();
                TVSC_processing_start();
            }

            // Backup for PM
            pPMCtxt->bTVEncEnable = TRUE;

            break;
        }

        case SVE_TVENC_SET_ENCODER_OFF:    // Stop TV Scaler & Disable TV Encoder
        {
            VDE_MSG((_T("[VDE] SVE_TVEncoder_API_Proc() : SVE_TVENC_SET_ENCODER_OFF\n\r")));

            if (pPMCtxt->bPowerOn)
            {
                //----------------
                // Stop TV Scaler
                //----------------
                TVSC_autoload_disable();
                if (TVSC_get_processing_state() == TVSC_BUSY)    // TV Scaler Running
                {
                    // Wait for Current Frame Finished
                    if (WAIT_TIMEOUT == SVE_wait_tvsc_cmd_done())
                    {
                        if (TVSC_get_processing_state() == TVSC_IDLE)
                        {
                            // Time Out, But TV Scaler Finished
                            VDE_MSG((_T("[VDE] SVE_TVEncoder_API_Proc() : SVE_TVENC_SET_ENCODER_OFF : SVE_wait_tvsc_cmd_done() TimeOut, But TV Scaler Finished\n\r")));
                        }
                        else
                        {
                            VDE_INF((_T("[VDE:INF] SVE_TVEncoder_API_Proc() : SVE_TVENC_SET_ENCODER_OFF : SVE_wait_tvsc_cmd_done() TimeOut\n\r")));
                            TVSC_processing_stop();
                        }
                    }
                }

                //------------------
                // Disable TV Encoder
                //------------------
                if (TVEnc_get_output_state() == TVENC_ENCODER_OFF)        // TV Encoder Not Running
                {
                    VDE_ERR((_T("[VDE:ERR] SVE_TVEncoder_API_Proc() : SVE_TVENC_SET_ENCODER_OFF : TV Encoder is Not Running\n\r")));
                    //bRet = FALSE;    // Treat this as Non-Error
                }
                else
                {
                    TVEnc_output_onoff(TVENC_ENCODER_OFF);
                }
            }

            // Backup for PM
            pPMCtxt->bTVEncEnable = FALSE;

            break;
        }

        case SVE_TVENC_GET_INTERFACE_STATUS:
            VDE_ERR((_T("[VDE:ERR] SVE_TVEncoder_API_Proc() : SVE_TVENC_GET_INTERFACE_STATUS : Not Implemented Yet...\n\r")));
            bRet = FALSE;
            break;
        default:    // This is filtered above switch statement
            bRet = FALSE;
            break;
            
    }

CleanUp:

    VDE_MSG((_T("[VDE] --SVE_TVEncoder_API_Proc()\n\r")));

    return bRet;
}