| /*************************************************** |
| 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; |
| |
| } |
| |
