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/***************************************************
Copyright (c) 2015 Amphion Semiconductor Ltd
All rights reserved.
***************************************************
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
****************************************************
Filename: DecoderLib.c
Description: Decoder Library API level
Author: Media IP FW team (Belfast & Shanghai)
****************************************************/
/////////////////////////////////////////////////////////////////////////////////
// Header files
/////////////////////////////////////////////////////////////////////////////////
#include "basetype.h"
#include "mediaip_fw_types.h"
#include "pal.h"
#include "DecKernelLib.h"
#include "DecKernelLibPrivate.h"
#include "DecKernelLibCfg.h"
/////////////////////////////////////////////////////////////////////////////////
// Global Variables
/////////////////////////////////////////////////////////////////////////////////
DEC_KERNEL_LIB gDecKernelLib = { 0x0 };
/////////////////////////////////////////////////////////////////////////////////
// Code
/////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////
// FUNCTION: decoder_kernel_lib_init //
// //
// DESCRIPTION: This function initialises the decoder library //
// to be called from kernel space //
// It's only purpose is to post interrupts via callback to a queue //
// for processing in userspace //
// //
// INPUTS: pCfg - Pointer to a static configuration structure for the //
// library //
// //
// OUTPUTS: None. //
// //
// RETURNS: MEDIAIP_FW_STATUS_ //
// OK - Success. //
// ALREADY_INIT - This function has already been called and no //
// subsequent call to decoderlib_term made //
// //
// NOTES: None. //
// //
// CONTEXT: This function must be called from non-interrupt context //
// //
////////////////////////////////////////////////////////////////////////////////////
MEDIAIP_FW_STATUS decoder_kernel_lib_init ( DECODERLIB_KERNEL_CFG * pCfg )
{
MEDIAIP_FW_STATUS eRetCode = MEDIAIP_FW_STATUS_OK;
if ( gDecKernelLib.bInit == FALSE )
{
gDecKernelLib.bInit = TRUE;
/* Make all necessary init calls */
internal_decoder_kernel_lib_init ( pCfg );
}
else
{
eRetCode = MEDIAIP_FW_STATUS_ALREADY_INIT;
}
return eRetCode;
}
////////////////////////////////////////////////////////////////////////////////////
// FUNCTION: decoderlib_register_event_callback //
// //
// DESCRIPTION: This function registers a handler for reporting decoder events //
// //
// INPUTS: hHandle - handle for the stream with which to register the //
// callbacks //
// pfCallback - Function ponter to be executed when a decoder //
// event is raised //
// //
// OUTPUTS: None. //
// //
// RETURNS: MEDIAIP_FW_STATUS_ //
// OK - Success. //
// BAD_HANDLE - hHandle is not a valid decoder library //
// handle //
// //
// NOTES: None. //
// //
// CONTEXT: Unknown if there are any constraints here as yet //
// //
////////////////////////////////////////////////////////////////////////////////////
MEDIAIP_FW_STATUS decoder_kernel_lib_register_isr_callback ( u_int32 uMalIdx,
DecKernelLib_Isr_Callback_t pfCallback )
{
if ( gDecKernelLib.bInit == FALSE )
{
pal_trace( DECODER_TL_WARNING, "DECODER_LIB: decoder_kernel_lib_register_isr_callback : Invalid Malone\n", uMalIdx );
return MEDIAIP_FW_STATUS_BAD_HANDLE;
}
internal_decoder_kernel_lib_register_isr_callback ( uMalIdx,
pfCallback );
return MEDIAIP_FW_STATUS_OK;
}
////////////////////////////////////////////////////////////////////////////////////
// FUNCTION: decoderlib_term //
// //
// DESCRIPTION: Deinitialises decode library //
// //
// INPUTS: None //
// //
// OUTPUTS: None. //
// //
// RETURNS: MEDIAIP_FW_STATUS_ //
// OK - Success. //
// //
// NOTES: None. //
// //
// CONTEXT: This function must be called from non-interrupt context //
// //
////////////////////////////////////////////////////////////////////////////////////
MEDIAIP_FW_STATUS decoder_kernel_lib_term ( )
{
MEDIAIP_FW_STATUS eRetCode = MEDIAIP_FW_STATUS_OK;
gDecKernelLib.bInit = FALSE;
return eRetCode;
}
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