From e442bb7cd6a085b33a4dd52c0e20a157ada7feb1 Mon Sep 17 00:00:00 2001 From: The Android Open Source Project Date: Tue, 21 Oct 2008 07:00:00 -0700 Subject: Initial Contribution --- arm-hybrid-22k/host_src/eas_hostmm.c | 660 +++++++++++++++++++++++++++++++++++ 1 file changed, 660 insertions(+) create mode 100644 arm-hybrid-22k/host_src/eas_hostmm.c (limited to 'arm-hybrid-22k/host_src/eas_hostmm.c') diff --git a/arm-hybrid-22k/host_src/eas_hostmm.c b/arm-hybrid-22k/host_src/eas_hostmm.c new file mode 100644 index 0000000..7e58838 --- /dev/null +++ b/arm-hybrid-22k/host_src/eas_hostmm.c @@ -0,0 +1,660 @@ +/*---------------------------------------------------------------------------- + * + * File: + * eas_hostmm.c + * + * Contents and purpose: + * This file contains the host wrapper functions for stdio, stdlib, etc. + * This is a sample version that maps the requested files to an + * allocated memory block and uses in-memory pointers to replace + * file system calls. The file locator (EAS_FILE_LOCATOR) handle passed + * HWOpenFile is the same one that is passed to EAS_OpenFile. If your + * system stores data in fixed locations (such as flash) instead of + * using a file system, you can use the locator handle to point to + * your memory. You will need a way of knowing the length of the + * data stored at that location in order to respond correctly in the + * HW_FileLength function. + * + * Modify this file to suit the needs of your particular system. + * + * EAS_MAX_FILE_HANDLES sets the maximum number of MIDI streams within + * a MIDI type 1 file that can be played. + * + * EAS_HW_FILE is a structure to support the file I/O functions. It + * comprises the base memory pointer, the file read pointer, and + * the dup flag, which when sets, indicates that the file handle has + * been duplicated. If your system uses in-memory resources, you + * can eliminate the duplicate handle logic, and simply copy the + * base memory pointer and file read pointer to the duplicate handle. + * + * Copyright 2005 Sonic Network Inc. + + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + *---------------------------------------------------------------------------- + * Revision Control: + * $Revision: 795 $ + * $Date: 2007-08-01 00:14:45 -0700 (Wed, 01 Aug 2007) $ + *---------------------------------------------------------------------------- +*/ + +#ifdef _lint +#include "lint_stdlib.h" +#else +#include +#include +#include +#endif + +#include "eas_host.h" + +/* Only for debugging LED, vibrate, and backlight functions */ +#include "eas_report.h" + +/* this module requires dynamic memory support */ +#ifdef _STATIC_MEMORY +#error "eas_hostmm.c requires the dynamic memory model!\n" +#endif + +#ifndef EAS_MAX_FILE_HANDLES +#define EAS_MAX_FILE_HANDLES 32 +#endif + +/* + * this structure and the related function are here + * to support the ability to create duplicate handles + * and buffering it in memory. If your system uses + * in-memory resources, you can eliminate the calls + * to malloc and free, the dup flag, and simply track + * the file size and read position. + */ +typedef struct eas_hw_file_tag +{ + EAS_I32 fileSize; + EAS_I32 filePos; + EAS_BOOL dup; + EAS_U8 *buffer; +} EAS_HW_FILE; + +typedef struct eas_hw_inst_data_tag +{ + EAS_HW_FILE files[EAS_MAX_FILE_HANDLES]; +} EAS_HW_INST_DATA; + +/*---------------------------------------------------------------------------- + * EAS_HWInit + * + * Initialize host wrapper interface + * + *---------------------------------------------------------------------------- +*/ +EAS_RESULT EAS_HWInit (EAS_HW_DATA_HANDLE *pHWInstData) +{ + + /* need to track file opens for duplicate handles */ + *pHWInstData = malloc(sizeof(EAS_HW_INST_DATA)); + if (!(*pHWInstData)) + return EAS_ERROR_MALLOC_FAILED; + + EAS_HWMemSet(*pHWInstData, 0, sizeof(EAS_HW_INST_DATA)); + return EAS_SUCCESS; +} + +/*---------------------------------------------------------------------------- + * EAS_HWShutdown + * + * Shut down host wrapper interface + * + *---------------------------------------------------------------------------- +*/ +EAS_RESULT EAS_HWShutdown (EAS_HW_DATA_HANDLE hwInstData) +{ + + free(hwInstData); + return EAS_SUCCESS; +} + +/*---------------------------------------------------------------------------- + * + * EAS_HWMalloc + * + * Allocates dynamic memory + * + *---------------------------------------------------------------------------- +*/ +/*lint -esym(715, hwInstData) hwInstData available for customer use */ +void *EAS_HWMalloc (EAS_HW_DATA_HANDLE hwInstData, EAS_I32 size) +{ + return malloc((size_t) size); +} + +/*---------------------------------------------------------------------------- + * + * EAS_HWFree + * + * Frees dynamic memory + * + *---------------------------------------------------------------------------- +*/ +/*lint -esym(715, hwInstData) hwInstData available for customer use */ +void EAS_HWFree (EAS_HW_DATA_HANDLE hwInstData, void *p) +{ + free(p); +} + +/*---------------------------------------------------------------------------- + * + * EAS_HWMemCpy + * + * Copy memory wrapper + * + *---------------------------------------------------------------------------- +*/ +void *EAS_HWMemCpy (void *dest, const void *src, EAS_I32 amount) +{ + return memcpy(dest, src, (size_t) amount); +} + +/*---------------------------------------------------------------------------- + * + * EAS_HWMemSet + * + * Set memory wrapper + * + *---------------------------------------------------------------------------- +*/ +void *EAS_HWMemSet (void *dest, int val, EAS_I32 amount) +{ + return memset(dest, val, (size_t) amount); +} + +/*---------------------------------------------------------------------------- + * + * EAS_HWMemCmp + * + * Compare memory wrapper + * + *---------------------------------------------------------------------------- +*/ +EAS_I32 EAS_HWMemCmp (const void *s1, const void *s2, EAS_I32 amount) +{ + return (EAS_I32) memcmp(s1, s2, (size_t) amount); +} + +/*---------------------------------------------------------------------------- + * + * EAS_HWOpenFile + * + * Open a file for read or write + * + *---------------------------------------------------------------------------- +*/ +EAS_RESULT EAS_HWOpenFile (EAS_HW_DATA_HANDLE hwInstData, EAS_FILE_LOCATOR locator, EAS_FILE_HANDLE *pFile, EAS_FILE_MODE mode) +{ + EAS_HW_FILE *file; + FILE *ioFile; + int i, temp; + + /* set return value to NULL */ + *pFile = NULL; + + /* only support read mode at this time */ + if (mode != EAS_FILE_READ) + return EAS_ERROR_INVALID_FILE_MODE; + + /* find an empty entry in the file table */ + file = hwInstData->files; + for (i = 0; i < EAS_MAX_FILE_HANDLES; i++) + { + /* is this slot being used? */ + if (file->buffer == NULL) + { + /* open the file */ + if ((ioFile = fopen(locator,"rb")) == NULL) + return EAS_ERROR_FILE_OPEN_FAILED; + + /* determine the file size */ + if (fseek(ioFile, 0L, SEEK_END) != 0) + return EAS_ERROR_FILE_LENGTH; + if ((file->fileSize = ftell(ioFile)) == -1L) + return EAS_ERROR_FILE_LENGTH; + if (fseek(ioFile, 0L, SEEK_SET) != 0) + return EAS_ERROR_FILE_LENGTH; + + /* allocate a buffer */ + file->buffer = EAS_HWMalloc(hwInstData, file->fileSize); + if (file->buffer == NULL) + { + fclose(ioFile); + return EAS_ERROR_MALLOC_FAILED; + } + + /* read the file into memory */ + temp = (int) fread(file->buffer, (size_t) file->fileSize, 1, ioFile); + + /* close the file - don't need it any more */ + fclose(ioFile); + + /* check for error reading file */ + if (temp != 1) + return EAS_ERROR_FILE_READ_FAILED; + + /* initialize some values */ + file->filePos = 0; + file->dup = EAS_FALSE; + + *pFile = file; + return EAS_SUCCESS; + } + file++; + } + + /* too many open files */ + return EAS_ERROR_MAX_FILES_OPEN; +} + +/*---------------------------------------------------------------------------- + * + * EAS_HWReadFile + * + * Read data from a file + * + *---------------------------------------------------------------------------- +*/ +/*lint -esym(715, hwInstData) hwInstData available for customer use */ +EAS_RESULT EAS_HWReadFile (EAS_HW_DATA_HANDLE hwInstData, EAS_FILE_HANDLE file, void *pBuffer, EAS_I32 n, EAS_I32 *pBytesRead) +{ + EAS_I32 count; + + /* make sure we have a valid handle */ + if (file->buffer == NULL) + return EAS_ERROR_INVALID_HANDLE; + + /* calculate the bytes to read */ + count = file->fileSize - file->filePos; + if (n < count) + count = n; + + /* copy the data to the requested location, and advance the pointer */ + if (count) + EAS_HWMemCpy(pBuffer, &file->buffer[file->filePos], count); + file->filePos += count; + *pBytesRead = count; + + /* were n bytes read? */ + if (count!= n) + return EAS_EOF; + return EAS_SUCCESS; +} + +/*---------------------------------------------------------------------------- + * + * EAS_HWGetByte + * + * Read a byte from a file + * + *---------------------------------------------------------------------------- +*/ +/*lint -esym(715, hwInstData) hwInstData available for customer use */ +EAS_RESULT EAS_HWGetByte (EAS_HW_DATA_HANDLE hwInstData, EAS_FILE_HANDLE file, void *p) +{ + + /* make sure we have a valid handle */ + if (file->buffer == NULL) + return EAS_ERROR_INVALID_HANDLE; + + /* check for end of file */ + if (file->filePos >= file->fileSize) + { + *((EAS_U8*) p) = 0; + return EAS_EOF; + } + + /* get a character from the buffer */ + *((EAS_U8*) p) = file->buffer[file->filePos++]; + return EAS_SUCCESS; +} + +/*---------------------------------------------------------------------------- + * + * EAS_HWGetWord + * + * Returns the current location in the file + * + *---------------------------------------------------------------------------- +*/ +/*lint -esym(715, hwInstData) hwInstData available for customer use */ +EAS_RESULT EAS_HWGetWord (EAS_HW_DATA_HANDLE hwInstData, EAS_FILE_HANDLE file, void *p, EAS_BOOL msbFirst) +{ + EAS_RESULT result; + EAS_U8 c1, c2; + + /* read 2 bytes from the file */ + if ((result = EAS_HWGetByte(hwInstData, file, &c1)) != EAS_SUCCESS) + return result; + if ((result = EAS_HWGetByte(hwInstData, file, &c2)) != EAS_SUCCESS) + return result; + + /* order them as requested */ + if (msbFirst) + *((EAS_U16*) p) = ((EAS_U16) c1 << 8) | c2; + else + *((EAS_U16*) p) = ((EAS_U16) c2 << 8) | c1; + + return EAS_SUCCESS; +} + +/*---------------------------------------------------------------------------- + * + * EAS_HWGetDWord + * + * Returns the current location in the file + * + *---------------------------------------------------------------------------- +*/ +/*lint -esym(715, hwInstData) hwInstData available for customer use */ +EAS_RESULT EAS_HWGetDWord (EAS_HW_DATA_HANDLE hwInstData, EAS_FILE_HANDLE file, void *p, EAS_BOOL msbFirst) +{ + EAS_RESULT result; + EAS_U8 c1, c2,c3,c4; + + /* read 4 bytes from the file */ + if ((result = EAS_HWGetByte(hwInstData, file, &c1)) != EAS_SUCCESS) + return result; + if ((result = EAS_HWGetByte(hwInstData, file, &c2)) != EAS_SUCCESS) + return result; + if ((result = EAS_HWGetByte(hwInstData, file, &c3)) != EAS_SUCCESS) + return result; + if ((result = EAS_HWGetByte(hwInstData, file, &c4)) != EAS_SUCCESS) + return result; + + /* order them as requested */ + if (msbFirst) + *((EAS_U32*) p) = ((EAS_U32) c1 << 24) | ((EAS_U32) c2 << 16) | ((EAS_U32) c3 << 8) | c4; + else + *((EAS_U32*) p)= ((EAS_U32) c4 << 24) | ((EAS_U32) c3 << 16) | ((EAS_U32) c2 << 8) | c1; + + return EAS_SUCCESS; +} + +/*---------------------------------------------------------------------------- + * + * EAS_HWFilePos + * + * Returns the current location in the file + * + *---------------------------------------------------------------------------- +*/ +/*lint -esym(715, hwInstData) hwInstData available for customer use */ +EAS_RESULT EAS_HWFilePos (EAS_HW_DATA_HANDLE hwInstData, EAS_FILE_HANDLE file, EAS_I32 *pPosition) +{ + + /* make sure we have a valid handle */ + if (file->buffer == NULL) + return EAS_ERROR_INVALID_HANDLE; + + *pPosition = file->filePos; + return EAS_SUCCESS; +} /* end EAS_HWFilePos */ + +/*---------------------------------------------------------------------------- + * + * EAS_HWFileSeek + * + * Seek to a specific location in the file + * + *---------------------------------------------------------------------------- +*/ +/*lint -esym(715, hwInstData) hwInstData available for customer use */ +EAS_RESULT EAS_HWFileSeek (EAS_HW_DATA_HANDLE hwInstData, EAS_FILE_HANDLE file, EAS_I32 position) +{ + + /* make sure we have a valid handle */ + if (file->buffer == NULL) + return EAS_ERROR_INVALID_HANDLE; + + /* validate new position */ + if ((position < 0) || (position > file->fileSize)) + return EAS_ERROR_FILE_SEEK; + + /* save new position */ + file->filePos = position; + return EAS_SUCCESS; +} + +/*---------------------------------------------------------------------------- + * + * EAS_HWFileSeekOfs + * + * Seek forward or back relative to the current position + * + *---------------------------------------------------------------------------- +*/ +/*lint -esym(715, hwInstData) hwInstData available for customer use */ +EAS_RESULT EAS_HWFileSeekOfs (EAS_HW_DATA_HANDLE hwInstData, EAS_FILE_HANDLE file, EAS_I32 position) +{ + + /* make sure we have a valid handle */ + if (file->buffer == NULL) + return EAS_ERROR_INVALID_HANDLE; + + /* determine the file position */ + position += file->filePos; + if ((position < 0) || (position > file->fileSize)) + return EAS_ERROR_FILE_SEEK; + + /* save new position */ + file->filePos = position; + return EAS_SUCCESS; +} + +/*---------------------------------------------------------------------------- + * + * EAS_HWFileLength + * + * Return the file length + * + *---------------------------------------------------------------------------- +*/ +/*lint -esym(715, hwInstData) hwInstData available for customer use */ +EAS_RESULT EAS_HWFileLength (EAS_HW_DATA_HANDLE hwInstData, EAS_FILE_HANDLE file, EAS_I32 *pLength) +{ + + /* make sure we have a valid handle */ + if (file->buffer == NULL) + return EAS_ERROR_INVALID_HANDLE; + + *pLength = file->fileSize; + return EAS_SUCCESS; +} + +/*---------------------------------------------------------------------------- + * + * EAS_HWDupHandle + * + * Duplicate a file handle + * + *---------------------------------------------------------------------------- +*/ +EAS_RESULT EAS_HWDupHandle (EAS_HW_DATA_HANDLE hwInstData, EAS_FILE_HANDLE file, EAS_FILE_HANDLE *pDupFile) +{ + EAS_HW_FILE *dupFile; + int i; + + /* make sure we have a valid handle */ + if (file->buffer == NULL) + return EAS_ERROR_INVALID_HANDLE; + + /* find an empty entry in the file table */ + dupFile = hwInstData->files; + for (i = 0; i < EAS_MAX_FILE_HANDLES; i++) + { + /* is this slot being used? */ + if (dupFile->buffer == NULL) + { + + /* copy info from the handle to be duplicated */ + dupFile->filePos = file->filePos; + dupFile->fileSize = file->fileSize; + dupFile->buffer = file->buffer; + + /* set the duplicate handle flag */ + dupFile->dup = file->dup = EAS_TRUE; + + *pDupFile = dupFile; + return EAS_SUCCESS; + } + dupFile++; + } + + /* too many open files */ + return EAS_ERROR_MAX_FILES_OPEN; +} + +/*---------------------------------------------------------------------------- + * + * EAS_HWClose + * + * Wrapper for fclose function + * + *---------------------------------------------------------------------------- +*/ +EAS_RESULT EAS_HWCloseFile (EAS_HW_DATA_HANDLE hwInstData, EAS_FILE_HANDLE file1) +{ + EAS_HW_FILE *file2,*dupFile; + int i; + + + /* make sure we have a valid handle */ + if (file1->buffer == NULL) + return EAS_ERROR_INVALID_HANDLE; + + /* check for duplicate handle */ + if (file1->dup) + { + dupFile = NULL; + file2 = hwInstData->files; + for (i = 0; i < EAS_MAX_FILE_HANDLES; i++) + { + /* check for duplicate */ + if ((file1 != file2) && (file2->buffer == file1->buffer)) + { + /* is there more than one duplicate? */ + if (dupFile != NULL) + { + /* clear this entry and return */ + file1->buffer = NULL; + return EAS_SUCCESS; + } + + /* this is the first duplicate found */ + else + dupFile = file2; + } + file2++; + } + + /* there is only one duplicate, clear the dup flag */ + if (dupFile) + dupFile->dup = EAS_FALSE; + else + /* if we get here, there's a serious problem */ + return EAS_ERROR_HANDLE_INTEGRITY; + + /* clear this entry and return */ + file1->buffer = NULL; + return EAS_SUCCESS; + } + + /* no duplicates -free the buffer */ + EAS_HWFree(hwInstData, file1->buffer); + + /* clear this entry and return */ + file1->buffer = NULL; + return EAS_SUCCESS; +} + +/*---------------------------------------------------------------------------- + * + * EAS_HWVibrate + * + * Turn on/off vibrate function + * + *---------------------------------------------------------------------------- +*/ +/*lint -esym(715, hwInstData) hwInstData available for customer use */ +EAS_RESULT EAS_HWVibrate (EAS_HW_DATA_HANDLE hwInstData, EAS_BOOL state) +{ + EAS_ReportEx(_EAS_SEVERITY_NOFILTER, 0x1a54b6e8, 0x00000001 , state); + return EAS_SUCCESS; +} /* end EAS_HWVibrate */ + +/*---------------------------------------------------------------------------- + * + * EAS_HWLED + * + * Turn on/off LED + * + *---------------------------------------------------------------------------- +*/ +/*lint -esym(715, hwInstData) hwInstData available for customer use */ +EAS_RESULT EAS_HWLED (EAS_HW_DATA_HANDLE hwInstData, EAS_BOOL state) +{ + EAS_ReportEx(_EAS_SEVERITY_NOFILTER, 0x1a54b6e8, 0x00000002 , state); + return EAS_SUCCESS; +} + +/*---------------------------------------------------------------------------- + * + * EAS_HWBackLight + * + * Turn on/off backlight + * + *---------------------------------------------------------------------------- +*/ +/*lint -esym(715, hwInstData) hwInstData available for customer use */ +EAS_RESULT EAS_HWBackLight (EAS_HW_DATA_HANDLE hwInstData, EAS_BOOL state) +{ + EAS_ReportEx(_EAS_SEVERITY_NOFILTER, 0x1a54b6e8, 0x00000003 , state); + return EAS_SUCCESS; +} + +/*---------------------------------------------------------------------------- + * + * EAS_HWYield + * + * This function is called periodically by the EAS library to give the + * host an opportunity to allow other tasks to run. There are two ways to + * use this call: + * + * If you have a multi-tasking OS, you can call the yield function in the + * OS to allow other tasks to run. In this case, return EAS_FALSE to tell + * the EAS library to continue processing when control returns from this + * function. + * + * If tasks run in a single thread by sequential function calls (sometimes + * call a "commutator loop"), return EAS_TRUE to cause the EAS Library to + * return to the caller. Be sure to check the number of bytes rendered + * before passing the audio buffer to the codec - it may not be filled. + * The next call to EAS_Render will continue processing until the buffer + * has been filled. + * + *---------------------------------------------------------------------------- +*/ +/*lint -esym(715, hwInstData) hwInstData available for customer use */ +EAS_BOOL EAS_HWYield (EAS_HW_DATA_HANDLE hwInstData) +{ + /* put your code here */ + return EAS_FALSE; +} + -- cgit v1.2.3