ncg_vg.c

00001 /******************************************************************************
00002 * Copyright(c) 2010-2014 Renesas Electronics Corporation. All rights reserved.
00003 *
00004 * brief  : R-GPVG control functions.
00005 *
00006 * author : Renesas Electronics Corporation
00007 *
00008 * history: 2011.01.20
00009 *          - Created the initial code.
00010 *          2012.08.22
00011 *          - Added return value to "NCGVG_InitResourceSize"
00012 *          2013.05.13
00013 *          - Added function of initialization.
00014 *          - Added function of finalization.
00015 *          2013.06.10
00016 *          - Applied to new VDC5 driver (Version 0.03.0046).
00017 *          2013.11.07
00018 *          - Modified value of NCG_VG_SBO1_SIZE to (4U) from (0U).
00019 *          2014.02.13
00020 *          - Modified the value of definitions.
00021 *              NCG_VG_WB_STRIDE
00022 *              NCG_VG_WB_HEIGHT
00023 *              NCG_VG_SBO0_SIZE
00024 *              NCG_VG_DLB_SIZE
00025 *          2014.03.25
00026 *          - Modified NCGVG_Init() and NCGVG_DeInit().
00027 *          2014.05.16
00028 *          - Modified NCGVG_Init() and NCGVG_DeInit().
00029 *          2014.12.22
00030 *          - Applied to OSPL and RGA.
00031 *
00032 *******************************************************************************/
00033 
00034 /*=============================================================================
00035  * Includes
00036  */
00037 
00038 #include "Project_Config.h"
00039 #include "ncg_defs.h"
00040 #include "ncg_debug.h"
00041 #include "r_ospl.h"
00042 
00043 #include "ncg_vg.h"
00044 
00045 /* Depending on the build environment */
00046 #include "r_typedefs.h"
00047 
00048 #include "iodefine.h"
00049 #include "iobitmasks/cpg_iobitmask.h"
00050 
00051 #ifdef  RGAH_VERSION
00052 
00053 /*=============================================================================
00054  * Internal definitions
00055  */
00056 
00057 /* TODO:
00058     Please change these parameters in accordance with your system.
00059  */
00060 #define NCG_VG_WB_STRIDE    (256U)
00061 #define NCG_VG_WB_HEIGHT    (480U)
00062 
00063 #define NCG_VG_SBO0_SIZE    (16384U)
00064 #define NCG_VG_SBO1_SIZE    (4U)
00065 #define NCG_VG_DLB_SIZE     (5120U)
00066 
00067 /*=============================================================================
00068  *  Prototyping of internal functions
00069  */
00070 
00071 
00072 /*=============================================================================
00073  *  Private global variables and functions
00074  */
00075 
00076 
00077 /*=============================================================================
00078  *  Global Function
00079  */
00080 
00081 /*----------------------------------------------------------------------------
00082  NAME       : NCGVG_Init
00083  FUNCTION   : Initialize R-GPVG.
00084  PARAMETERS : pVGInfo : [IN ] The pointer to the initialization information struct.
00085  RETURN     : None.
00086 ------------------------------------------------------------------------------*/
00087 NCGvoid
00088 NCGVG_Init (
00089     PNCGVGINFO pVGInfo)
00090 {
00091     /* Depending on the build environment */
00092     volatile uint8_t    reg_value;
00093 
00094     NCG_UNREFERENCED_PARAMETER( pVGInfo );
00095 
00096     NCG_DEBUG_PRINT_STRING( "[LOG] NCGVG_Init" );
00097 
00098     reg_value = CPG.STBCR10;
00099     if ( CPG.STBCR10 & CPG_STBCR10_MSTP100 ) {
00100         /* Standby control register 10 (STBCR10) : 0 : R-GPVG enable */
00101         CPG.STBCR10 &= ~CPG_STBCR10_MSTP100;
00102         /* dummy read */
00103         reg_value = CPG.STBCR10;
00104 
00105         if ( CPG.STBREQ2 & CPG_STBREQ2_STBRQ20 ) {
00106             CPG.SWRSTCR3 |=  CPG_SWRSTCR3_SRST32;
00107             /* dummy read */
00108             reg_value = CPG.SWRSTCR3;
00109 
00110             CPG.SWRSTCR3 &= ~CPG_SWRSTCR3_SRST32;
00111             /* dummy read */
00112             reg_value = CPG.SWRSTCR3;
00113 
00114             CPG.STBREQ2 &= ~CPG_STBREQ2_STBRQ20;
00115             /* dummy read */
00116             reg_value = CPG.STBREQ2;
00117             while ( (CPG.STBACK2 & CPG_STBACK2_STBAK20) != 0  ) ;
00118         }
00119     }
00120 
00121     NCG_UNREFERENCED_PARAMETER( reg_value );  /* Avoid warning of "unused-but-set-variable" of GCC_ARM */
00122 
00123     return ;
00124 }
00125 
00126 /*----------------------------------------------------------------------------
00127  NAME       : NCGVG_DeInit
00128  FUNCTION   : Finalize R-GPVG.
00129  PARAMETERS : pVGInfo : [IN ] The pointer to the finalization information struct.
00130  RETURN     : None.
00131 ------------------------------------------------------------------------------*/
00132 NCGvoid
00133 NCGVG_DeInit (
00134     PNCGVGINFO      pVGInfo )
00135 {
00136     /* Depending on the build environment */
00137     volatile uint8_t    reg_value;
00138 
00139     NCG_UNREFERENCED_PARAMETER(pVGInfo);
00140 
00141     NCG_DEBUG_PRINT_STRING( "[LOG] NCGVG_DeInit" );
00142 
00143     if ( (CPG.STBCR10 & CPG_STBCR10_MSTP100) != CPG_STBCR10_MSTP100 ) {
00144         CPG.STBREQ2 |= CPG_STBREQ2_STBRQ20;
00145         /* dummy read */
00146         reg_value = CPG.STBREQ2;
00147         while ( (CPG.STBACK2 & CPG_STBACK2_STBAK20) == 0  ) ;
00148 
00149         /* Standby control register 10 (STBCR10) : 0 : R-GPVG disable */
00150         CPG.STBCR10 |= CPG_STBCR10_MSTP100;
00151         /* dummy read */
00152         reg_value = CPG.STBCR10;
00153     }
00154 
00155     NCG_UNREFERENCED_PARAMETER( reg_value );  /* Avoid warning of "unused-but-set-variable" of GCC_ARM */
00156 
00157     return ;
00158 }
00159 
00160 #endif
00161 /* -- end of file -- */