FreeCalypso > hg > fc-selenite
view src/g23m-fad/ra/ra_shm.c @ 92:e42d528f3e6e
components/main_ir: ramvecs module now goes outside of libs
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 21 Jul 2018 00:22:35 +0000 |
parents | d393cd9bb723 |
children |
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/* +----------------------------------------------------------------------------- | Project : GSM-F&D (8411) | Modul : RA_SHM +----------------------------------------------------------------------------- | Copyright 2002 Texas Instruments Berlin, AG | All rights reserved. | | This file is confidential and a trade secret of Texas | Instruments Berlin, AG | The receipt of or possession of this file does not convey | any rights to reproduce or disclose its contents or to | manufacture, use, or sell anything it may describe, in | whole, or in part, without the specific written consent of | Texas Instruments Berlin, AG. +----------------------------------------------------------------------------- | Purpose : This Modul defines the functions for accessing the | shared memory segment between MCU and DSP +----------------------------------------------------------------------------- */ #ifndef RA_SHM_C #define RA_SHM_C #endif #define ENTITY_RA /*==== INCLUDES ===================================================*/ #include <string.h> #include "typedefs.h" #include "pconst.cdg" #include "vsi.h" #include "custom.h" #include "gsm.h" #include "cnf_ra.h" #include "prim.h" #include "pei.h" #include "tok.h" #include "ccdapi.h" #include "ra.h" /*==== CONST ======================================================*/ /*==== TYPES ======================================================*/ /*==== VARIABLES ==================================================*/ /*==== FUNCTIONS ==================================================*/ /* +--------------------------------------------------------------------+ | PROJECT : GSM-F&D (8411) MODULE : RA_SHM | | STATE : code ROUTINE : shm_set_dsp_buffer | +--------------------------------------------------------------------+ PURPOSE : */ GLOBAL USHORT shm_set_dsp_buffer(T_FRAME_DESC *data, register USHORT *buffer, USHORT offs, USHORT free) { register UBYTE *b; USHORT len, segment; buffer = (USHORT*) ( ( (UBYTE*) buffer ) + offs ); /* * write the both segments specified by the frame descriptor data to the DSP mem. */ for (segment = 0; segment < 2; segment++) { /* * limitate the length fields; */ len = free; if (len > data->Len[segment]) len = data->Len[segment]; if (len) { data->Len[segment] -= len; b = data->Adr[segment]; { memcpy( (UBYTE*) buffer, (UBYTE*) b, (USHORT) len ); buffer = (USHORT*) ( ( (UBYTE*) buffer ) + len ); free -= len; offs += len; } } } return offs; } GLOBAL U8 shm_set_dsp_buffer_new(T_FD *pFD, USHORT *buffer, U8 offs, U8 free) { U8 len; buffer = (USHORT*)(((UBYTE*)buffer) + offs); /* * limitate the length fields; */ len = MINIMUM(free, pFD->len); if (len) { memcpy((UBYTE*)buffer, (UBYTE*)pFD->buf, (USHORT)len); buffer = (USHORT*)(((UBYTE*)buffer) + len); } return len; } /* +--------------------------------------------------------------------+ | PROJECT : GSM-F&D (8411) MODULE : RA_SHM | | STATE : code ROUTINE : shm_get_dsp_buffer | +--------------------------------------------------------------------+ PURPOSE : */ GLOBAL USHORT shm_get_dsp_buffer(T_FRAME_DESC *data, register USHORT *buffer, USHORT bytes_to_read) { register UBYTE *b; USHORT offs = 0; USHORT len, segment; /* * read the both segments specified by the frame descriptor data from the DSP mem */ for (segment = 0; segment < 2; segment++) { len = MINIMUM(data->Len[segment], bytes_to_read); if (len) { data->Len[segment] -= len; b = data->Adr[segment]; #ifdef TI_PS_16BIT_CPY api_memcpy((UBYTE*)b, (UBYTE*)buffer, (USHORT)len ); #else memcpy((UBYTE*)b, (UBYTE*)buffer, (USHORT)len ); #endif buffer = (USHORT*)(((UBYTE*)buffer) + len); bytes_to_read -= len; offs += len; } } return offs; } GLOBAL U8 shm_get_dsp_buffer_new(USHORT *buffer, U8 bytes_to_read, T_FD *pFD) { U8 len = MINIMUM(pFD->len, bytes_to_read); if (len) { pFD->len = len; #ifdef TI_PS_16BIT_CPY api_memcpy(pFD->buf, (UBYTE*)buffer, len); #else memcpy(pFD->buf, (UBYTE*)buffer, len); #endif } return len; }