From 2228e360595641dd906bf1773307f43d304f5b2e Mon Sep 17 00:00:00 2001 From: The Android Open Source Project Date: Wed, 11 Jul 2012 10:15:24 -0700 Subject: Snapshot 2bda038c163298531d47394bc2c09e1409c5d0db Change-Id: If584e579464f28b97d50e51fc76ba654a5536c54 --- libSYS/src/mips/genericStds_mips.cpp | 292 +++++++++++++++++++++++++++++++++++ 1 file changed, 292 insertions(+) create mode 100644 libSYS/src/mips/genericStds_mips.cpp (limited to 'libSYS/src/mips') diff --git a/libSYS/src/mips/genericStds_mips.cpp b/libSYS/src/mips/genericStds_mips.cpp new file mode 100644 index 0000000..98a30c3 --- /dev/null +++ b/libSYS/src/mips/genericStds_mips.cpp @@ -0,0 +1,292 @@ + +/* ----------------------------------------------------------------------------------------------------------- +Software License for The Fraunhofer FDK AAC Codec Library for Android + +© Copyright 1995 - 2012 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. + All rights reserved. + + 1. INTRODUCTION +The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements +the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. +This FDK AAC Codec software is intended to be used on a wide variety of Android devices. + +AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual +audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by +independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part +of the MPEG specifications. + +Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) +may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners +individually for the purpose of encoding or decoding bit streams in products that are compliant with +the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license +these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec +software may already be covered under those patent licenses when it is used for those licensed purposes only. + +Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, +are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional +applications information and documentation. + +2. COPYRIGHT LICENSE + +Redistribution and use in source and binary forms, with or without modification, are permitted without +payment of copyright license fees provided that you satisfy the following conditions: + +You must retain the complete text of this software license in redistributions of the FDK AAC Codec or +your modifications thereto in source code form. + +You must retain the complete text of this software license in the documentation and/or other materials +provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. +You must make available free of charge copies of the complete source code of the FDK AAC Codec and your +modifications thereto to recipients of copies in binary form. + +The name of Fraunhofer may not be used to endorse or promote products derived from this library without +prior written permission. + +You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec +software or your modifications thereto. + +Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software +and the date of any change. For modified versions of the FDK AAC Codec, the term +"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term +"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." + +3. NO PATENT LICENSE + +NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, +ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with +respect to this software. + +You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized +by appropriate patent licenses. + +4. DISCLAIMER + +This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors +"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties +of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR +CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, +including but not limited to procurement of substitute goods or services; loss of use, data, or profits, +or business interruption, however caused and on any theory of liability, whether in contract, strict +liability, or tort (including negligence), arising in any way out of the use of this software, even if +advised of the possibility of such damage. + +5. CONTACT INFORMATION + +Fraunhofer Institute for Integrated Circuits IIS +Attention: Audio and Multimedia Departments - FDK AAC LL +Am Wolfsmantel 33 +91058 Erlangen, Germany + +www.iis.fraunhofer.de/amm +amm-info@iis.fraunhofer.de +----------------------------------------------------------------------------------------------------------- */ + +/************************** Fraunhofer IIS FDK SysLib ********************** + + Author(s): Manuel Jander + Description: + +******************************************************************************/ + +#define RESOURCE_scratchBuffer +#define FUNCTION_FDKprolog +#define FUNCTION_FDKepilog + +#define MIPS_VIRTUAL_START (0x80000000) +/* value below is defined in simulator config (MipsMemIntf-{24KE,4KE}.cfg) */ +#define MIPS_SDE_SCRATCHPAD (0x00058000) + +//#define MIPS_SRAM_SIZE (32768) +#define MIPS_SRAM_SIZE (4096) + +#define MIPS_SCRATCH_SIZE (4096) +#define DATA_L1_A_SIZE (MIPS_SRAM_SIZE-MIPS_SCRATCH_SIZE) + + + + +#ifdef RESOURCE_scratchBuffer +#define FDK_SCRATCHBUF_SIZE 1024 +static LONG *___scratchBuffer = NULL; +static LONG *__scratchBuffer = NULL; +static unsigned char *__pScratchBuffer = NULL; +#endif + + +#ifdef __linux__ + +#include +#include +#include +#include +#include +#include + +static int fd; +static inline void * getSram(void) +{ + unsigned long *ptr = NULL; + + /* Open driver */ + fd = open("/dev/sram", 0); + if (fd < 0) + { + printf("Unable to access sram. Fallback to malloc\n"); + /* Signal "no sram driver at use". */ + fd = -1; + /* Return malloced pointer (fallback) */ + return malloc(MIPS_SRAM_SIZE); + } + + /* Get memory mapped into CPU (virtual) address space */ + ptr = (unsigned long *)mmap(NULL, MIPS_SRAM_SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0); + if(ptr == MAP_FAILED) + { + printf("Unable to access sram. Fallback to malloc\n"); + /* Give up on the sram driver */ + close(fd); + /* Signal "no sram driver at use". */ + fd = -1; + /* Return malloced pointer (fallback) */ + ptr = (unsigned long *)malloc(MIPS_SRAM_SIZE); + } + + + /* Return pointer to sram */ + return (void*)ptr; +} + +static inline void freeSram(void* ptr) +{ + /* Check if sram driver is being used. */ + if (fd == -1) + { + free(ptr); + return; + } + + /* Unmap memory */ + munmap(ptr, MIPS_SRAM_SIZE); + /* Close driver */ + close(fd); + + return; +} + +#elif defined(__SDE_MIPS__) + +#include +#include + +static int hasISPRAM, hasDSPRAM; + +static inline void * getSram(void) +{ + void *addr; + unsigned int Config; + + Config = mips_getconfig(); + hasISPRAM = (Config >> 24) & 1; + hasDSPRAM = (Config >> 23) & 1; + + FDKprintf("Config ISP/DSP: %d/%d\n", hasISPRAM, hasDSPRAM); + + if (hasDSPRAM) { + long paddr, laddr; + + FDKprintf("wrong\n"); + paddr = MIPS_SDE_SCRATCHPAD; + /* Fixed mapping of kseg0: 0x80000000-0x9fffffff virtual => 0x00000000-0x1fffffff physical */ + laddr = MIPS_VIRTUAL_START + MIPS_SDE_SCRATCHPAD; + addr = (void*)(laddr); + } else { + FDKprintf("ok\n"); + addr = malloc(MIPS_SRAM_SIZE); + FDKprintf("addr %d\n", (int)addr); + } + return addr; +} +static inline void freeSram(void* ptr) +{ + if (!hasDSPRAM) { + free(ptr); + } +} + +#else + +static inline void * getSram(void) +{ + return malloc(MIPS_SRAM_SIZE); +} +static inline void freeSram(void* ptr) +{ + free(ptr); +} + +#endif + + +#ifdef FUNCTION_FDKprolog +void FDKprolog(void) +{ + unsigned char *addr; + +#ifdef _MIPS_ARCH_MIPS32R2 + unsigned status; + asm volatile("mfc0 %0, $12, 0;\n" : "=r" (status)); + status |= (1 << 24); + asm volatile("mtc0 %0, $12, 0;\n" :: "r" (status)); +#endif + + addr = (unsigned char*)getSram(); + if (addr == NULL) { + FDKprintfErr("SRAM allocation failed ! This is fatal.\n"); + exit(-1); + } else { + FDKprintf("SRAM @ 0x%08x, size = 0x%x\n", (unsigned int) addr, MIPS_SRAM_SIZE); + } + + +#ifdef RESOURCE_scratchBuffer + ___scratchBuffer = (LONG*)(addr + MIPS_SRAM_SIZE - MIPS_SCRATCH_SIZE); +#endif + + atexit(FDKepilog); + + FDKprolog_generic(); +} +#endif + +#ifdef FUNCTION_FDKepilog +void FDKepilog(void) +{ + +#ifdef _MIPS_ARCH_MIPS32R2 + unsigned status; + asm volatile("mfc0 %0, $12, 0;\n" : "=r" (status)); + status &= ~(1 << 24); + asm volatile("mtc0 %0, $12, 0;\n" :: "r" (status)); +#endif + + FDKepilog_generic(); +} +#endif + + +#if !defined(__linux__) + +#define FUNCTION_FDKclock + +#ifndef MIPS_CPU_CLK +#define MIPS_CPU_CLK 100000000 +#endif + +INT FDKclock(void) { + INT clk; + + asm volatile ("mfc0 %0,$9 " : "=r" (clk)); + return clk; +} + +#endif /* !defined(__linux__) */ -- cgit v1.2.3