int main(void) {
char buffer_name[10];
short int handler;
alt_up_sd_card_dev *device_reference = NULL;
int connected = 0;
device_reference = alt_up_sd_card_open_dev("/dev/SD_Card");
if (device_reference != NULL) {
while(1) {
if ((connected == 0) && (alt_up_sd_card_is_Present())) {
printf("Card connected.\n");
if (alt_up_sd_card_is_FAT16()) {
printf("FAT16 file system detected.\n");
//Print out the list in the sd card
handler = alt_up_sd_card_find_first("", buffer_name);
printf("%s \n", buffer_name);
while ((handler = alt_up_sd_card_find_next(buffer_name)) != -1)
printf("%s \n", buffer_name);
}else{
printf("Unknown file system.\n");
}
connected = 1;
} else if ((connected == 1) && (alt_up_sd_card_is_Present() == false)) {
printf("Card disconnected.\n");
connected = 0;
}
}
}
return 0;
}
/*
* Overview: exercise 3 reads sd_card and list its file.
*
*/
void sd_card(void){
char file_name[10];
alt_up_sd_card_dev *device_reference = NULL;
int connected = 0;
device_reference = alt_up_sd_card_open_dev(ALTERA_UP_SD_CARD_AVALON_INTERFACE_0_NAME);
if (device_reference != NULL) {
while(1) {
if ((connected == 0) && (alt_up_sd_card_is_Present())) {
//printf("Card connected.\n");
if (alt_up_sd_card_is_FAT16()) {
//printf("FAT16 file system detected.\n");
if(alt_up_sd_card_find_first(".", (char*) file_name)==0){
//printf("%s\n",file_name);
while(alt_up_sd_card_find_next((char*)file_name)==0)
{
//printf("%s\n", file_name);
}
}
} else {
//printf("Unknown file system.\n");
}
connected = 1;
} else if ((connected == 1) && (alt_up_sd_card_is_Present() == false)) {
//printf("Card disconnected.\n");
connected = 0;
}
break;
}
} else {
//printf("Card could not be opened\n");
}
//printf("sd_card function finished\n");
}
void load_file(char* filename, void (*func)(short)){
bool found_file = false;
if (get_device_reference() == NULL || !alt_up_sd_card_is_Present() || !alt_up_sd_card_is_FAT16()){
printf("Can't find device, or device not configured properly\n");
return;
}
char filename_all_caps[strlen(filename)];
to_caps(filename, filename_all_caps);
char found_file_name[13];
if (alt_up_sd_card_find_first(".", found_file_name) != 0){
printf("Couldn't find root dir\n");
return;
}
do {
if (strcmp(found_file_name, filename_all_caps)== 0){
short int file = alt_up_sd_card_fopen(found_file_name, false);
if (file >= 0){
printf("found file %s in SD\n", filename_all_caps);
(*func)(file);
found_file = true; //want to close file, so use this rather than returning
}
alt_up_sd_card_fclose(file);
}
}while(!found_file && alt_up_sd_card_find_next(found_file_name) == 0);
}
void findDatabaseVersion(){
if(alt_up_sd_card_find_first("",database_name)==0){
while(alt_up_sd_card_find_next(database_name)==0){
//printf("%s \n",database_name);
version++;
}
}
else if (alt_up_sd_card_find_first("",database_name)== -1)
printf("No files. \n");
}
//Initializes SD card, outputs filenames on sd card
int init_sd(char * filenames[]){
int j;
int i = 0;
char thepath[] = AUD_DIRECT; //Directory for filenames we want to read
short int check_file_name;
for (j = 0; j < MAXFILES; j++) {
filenames[j] = (char *)malloc(sizeof(char) * MAX_NAME_LEN);
if (filenames[j] == NULL)
printf("Error, out of memory (2)\n");
}
alt_up_sd_card_dev * sd_card = NULL;
int connected = 0;
sd_card = alt_up_sd_card_open_dev("/dev/Interface");
if (sd_card != NULL) {
while(1) {
if ((connected == 0) && (alt_up_sd_card_is_Present())) {
printf("Card connected.\n");
if (alt_up_sd_card_is_FAT16()) {
printf("FAT16 file system detected.\n");
check_file_name = alt_up_sd_card_find_first(thepath,filenames[i]);
if (check_file_name == 1)
printf("Invalid Directory.\n");
else if (check_file_name == 2)
printf("Invalid SD Card.\n");
else if (check_file_name == -1)
printf("No files found.\n");
else {
i++;
}
while(alt_up_sd_card_find_next(filenames[i]) != -1){
i++;
}
arr = (unsigned int ***)malloc(sizeof(unsigned int) * i);
if (arr == NULL){
printf("Error, arr null\n");
}
return i; //If card connected, returns amount of files
} else {
printf("Unknown file system.\n");
}
connected = 1;
} else if ((connected == 1) && (alt_up_sd_card_is_Present() == false)) {
printf("Card disconnected.\n");
connected = 0;
}
}
}
else {
printf("Error.\n");
return -1;
}
}
void printSD() {
char* fileName;
if (alt_up_sd_card_is_Present() && alt_up_sd_card_is_FAT16()) {
if (alt_up_sd_card_find_first("", fileName) == 0) {
printf("Files detected: \n");
do {
printf("%s \n", fileName);
} while (alt_up_sd_card_find_next(fileName) == 0);
} else if (alt_up_sd_card_find_first("", fileName) == -1)
printf("No files. \n");
}
}
int init_sd(char * filenames[]){
int i = 0;
char thepath[] = "/";
short int check_file_name;
alt_up_sd_card_dev * sd_card = NULL;
int connected = 0;
sd_card = alt_up_sd_card_open_dev("/dev/Interface");
if (sd_card != NULL) {
while(1) {
if ((connected == 0) && (alt_up_sd_card_is_Present())) {
printf("Card connected.\n");
if (alt_up_sd_card_is_FAT16()) {
printf("FAT16 file system detected.\n");
check_file_name = alt_up_sd_card_find_first(thepath,filenames[i]);
if (check_file_name == 1)
printf("Invalid Directory.\n");
else if (check_file_name == 2)
printf("Invalid SD Card.\n");
else if (check_file_name == -1)
printf("No files found.\n");
else {
// printf("First file name = %s.\n", filenames[i]);
i++;
}
while(alt_up_sd_card_find_next(filenames[i]) != -1){
// printf("Next file name = %s.\n", filenames[i]);
i++;
}
return i;
} else {
printf("Unknown file system.\n");
}
connected = 1;
} else if ((connected == 1) && (alt_up_sd_card_is_Present() == false)) {
printf("Card disconnected.\n");
connected = 0;
}
}
}
else {
printf("Error.\n");
return -1;
}
}
/*
* Overview: Helper function to test SD card.
* Check connectivity, file system, and any present files.
*
*/
void testsdcard(alt_up_sd_card_dev *device_reference)
{
char file_name[10];
int connected = 0;
if (device_reference != NULL)
{
while(1)
{
if ((connected == 0) && (alt_up_sd_card_is_Present()))
{
printf("Card connected.\n");
if (alt_up_sd_card_is_FAT16())
{
printf("FAT16 file system detected.\n");
if(alt_up_sd_card_find_first(".", (char*) file_name)==0)
{
printf("%s\n",file_name);
while(alt_up_sd_card_find_next((char*)file_name)==0)
{
printf("%s\n", file_name);
alt_up_sd_card_read(file_name);
}
}
break;
}
else
{
printf("Unknown file system.\n");
}
connected = 1;
}
else if ((connected == 1) && (alt_up_sd_card_is_Present() == false))
{
printf("Card disconnected.\n"); connected = 0;
}
}
}
else
{
printf("Card could not be opened\n");
}
}
int filenames_read(char* filename, int charmax){
//Test if the SD card is inserted and is in a valid file format for reading
if ((alt_up_sd_card_is_Present())) {
if (alt_up_sd_card_is_FAT16()) {
int offset = 0;
int filecount = 0;
int returnval = alt_up_sd_card_find_first(0x0, filename);
if (returnval < 0){
printf("the read failed");
return -2;
}
/*
* Read the first filename within the SD card as long as there is sufficient space within the character buffer
*/
if((returnval == 0))
{
filecount++;
while(*(filename+offset) != '.')
offset++;
offset+=4;
*(filename+offset) = ';';
offset++;
}
/* As long as there is sufficient space within the character buffer, will read every name within the
* SD card to a buffer.
*/
while (1){
returnval = alt_up_sd_card_find_next((filename+offset));
if (returnval == -1 ){
break;
}
filecount++;
if((charmax-offset) <= 12){
break;
}
while(*(filename+offset) != '.'){
offset++;
}
offset+=4;
*(filename+offset) = ';';
offset++;
}
return filecount;
}
}
return -1;
}
/**
* Uses the directory used in sdcard_get_first_file.
* Return: Same as sdcard_FirstFile, with the addition of 3, which means that sdcard_FirstFile must be called first
*/
short int sdcard_NextFile(char *file_name)
{
short int result = alt_up_sd_card_find_next(file_name);
return result;
}
int main(void) {
device_reference = alt_up_sd_card_open_dev("/dev/SD_Card");
if (device_reference != NULL) {
while(1) {
if ((connected == 0) && (alt_up_sd_card_is_Present())) {
printf("Card connected.\n");
if (alt_up_sd_card_is_FAT16()) {
printf("FAT16 file system detected.\n");
//Print out the list in the sd card
handler = alt_up_sd_card_find_first("", buffer_name);
printf("%s \n", buffer_name);
//Read a file in SD card -needs to speed up(10 sec?) - needs array of int
sd_fileh = alt_up_sd_card_fopen("TEST.WAV", false);
if (sd_fileh < 0)
printf("Problem reading file. Error %i\n", sd_fileh);
else
{
printf("Reading file...\n");
audio_dev = alt_up_audio_open_dev (AUDIO_NAME);
if ( audio_dev == NULL){
return;
}
av_config = alt_up_av_config_open_dev(AUDIO_AND_VIDEO_CONFIG_NAME);
while(!alt_up_av_config_read_ready(av_config));
alt_up_audio_disable_read_interrupt(audio_dev);
alt_up_audio_enable_write_interrupt(audio_dev);
/*
// Get information of number of channels
//count = 0;
char a, b;
int d;
short c;
int index = 0;
while (buffer_name[index] != "\0"){
a = alt_up_sd_card_read(sd_fileh);
b = alt_up_sd_card_read(sd_fileh);
c = ((unsigned char) a <<8) | (unsigned char) b;
d = c;
d = alt_up_audio_write_fifo(device_reference,d,)
index++;
}
*/
/*
// printf("NumChannels ");
byte1 = 0;byte2 = 0;total = 0;
byte1 = alt_up_sd_card_read(sd_fileh);
byte2 = alt_up_sd_card_read(sd_fileh);
total = (byte1 & 0x00ff) | (byte2 << 8);
NumChannels = total;
// printf("%d\n",total);
// printf("SampleRate ");
byte1 = 0;byte2 = 0;byte3 = 0;byte4 = 0;long_total = 0;
byte1 = alt_up_sd_card_read(sd_fileh);
byte2 = alt_up_sd_card_read(sd_fileh);
byte3 = alt_up_sd_card_read(sd_fileh);
byte4 = alt_up_sd_card_read(sd_fileh);
long_total = (byte4 << 24) | (byte3 << 16) | (byte2 << 8) | ( byte1 & 0x000000ff);
sampleRate = long_total;
// printf("%ld\n",long_total);
*/
/*
count = 0;
while (count < 16) // 44-byte header
{
alt_up_sd_card_read(sd_fileh);
count++;
}
*/
}
//find next file
while ((handler = alt_up_sd_card_find_next(buffer_name)) != -1)
printf("%s \n", buffer_name);
}else{
printf("Unknown file system.\n");
}
connected = 1;
} else if ((connected == 1) && (alt_up_sd_card_is_Present() == false)) {
printf("Card disconnected.\n");
connected = 0;
}
}
}
return 0;
}
int main() {
int i;
//1 for receiving file from middleman, 2 for sending to middleman
int mode;
//Num char in filename array
int numFileName;
//Num bytes in file
int numBytesFile;
//Num characters in file array
int numFile;
char* listName;
//File to send or receive (likely a piece of it)
unsigned char fileName[MAX_FILENAME];
//variable to hold data received from uart
unsigned char data;
//parity bit for reading (not using parity atm, but still need the bit)
unsigned char parity;
short int handle;
//handle for the file to create/access
int connected = 0;
//Variable to keep track of whether the SD CARD is connected or not.
while (1) {
alt_up_sd_card_dev *device_reference = NULL;
device_reference = alt_up_sd_card_open_dev(ALTERA_UP_SD_CARD_AVALON_INTERFACE_0_NAME);
printf("UART Initialization\n");
alt_up_rs232_dev* uart = alt_up_rs232_open_dev("/dev/rs232_0");
if(!alt_up_sd_card_is_FAT16()){
printf("SD CARD is not FAT16 Format\n");
}
if (device_reference != NULL) {
while (alt_up_sd_card_is_Present()) {
printf("Clearing read buffer to start\n");
while (alt_up_rs232_get_used_space_in_read_FIFO(uart)) {
alt_up_rs232_read_data(uart, &data, &parity);
}
// Now receive the instruction from the Middleman
printf("Waiting for instruction to come from the Middleman\n");
while (alt_up_rs232_get_used_space_in_read_FIFO(uart) == 0)
;
// First byte is the mode, 1 for receiving file from middleman, 2 for sending to middleman
alt_up_rs232_read_data(uart, &data, &parity);
mode = (int) data;
//mode -= 48;
printf("Mode:%d\n", mode);
//Receive file from middleman and save to SD
if (mode == 1) {
printf("Waiting for num char:\n");
// The second byte is the number of characters in the file name
while (alt_up_rs232_get_used_space_in_read_FIFO(uart) == 0);
alt_up_rs232_read_data(uart, &data, &parity);
numFileName = (int) data;
//numFileName -= 48;
//Now receive the file name
printf("About to receive %d characters:\n\n", numFileName);
printf("Filename received:");
for (i = 0; i < numFileName; i++) {
while (alt_up_rs232_get_used_space_in_read_FIFO(uart)== 0);
alt_up_rs232_read_data(uart, &data, &parity);
fileName[i] = data;
printf("%c", data);
}
printf("\n");
fileName[i] = '.';
fileName[i+1] = 't';
fileName[i+2] = 'x';
fileName[i+3] = 't';
fileName[i+4]= '\0';
//
// TODO:
// USE THAT FILENAME TO MAKE A NEW FILE ON SD CARD HERE
handle = alt_up_sd_card_fopen(fileName, 1);
if(handle < 0){
//TODO: File can't be opened, do something about it
printf("send had a neg handle \n\n");
}
else{
// The 4 bytes after filename is the number of bytes in the file
//
// SHIFT BYTES LEFT AND CONCATENATE TO ACCOUNT FOR SEVERAL BYTES WORTH OF FILE
// WRITE FIRST 4 BYTES OF FILE AS SIZE OF FILE IN BYTES
while (alt_up_rs232_get_used_space_in_read_FIFO(uart) == 0);
alt_up_rs232_read_data(uart, &data, &parity);
alt_up_sd_card_write(handle, data);
numBytesFile = (int) data;
numBytesFile = numBytesFile << 8;
while (alt_up_rs232_get_used_space_in_read_FIFO(uart) == 0);
alt_up_rs232_read_data(uart, &data, &parity);
alt_up_sd_card_write(handle, data);
numBytesFile += (int) data;
numBytesFile = numBytesFile << 8;
while (alt_up_rs232_get_used_space_in_read_FIFO(uart) == 0);
alt_up_rs232_read_data(uart, &data, &parity);
alt_up_sd_card_write(handle, data);
numBytesFile += (int) data;
numBytesFile = numBytesFile << 8;
while (alt_up_rs232_get_used_space_in_read_FIFO(uart) == 0);
alt_up_rs232_read_data(uart, &data, &parity);
alt_up_sd_card_write(handle, data);
numBytesFile += (int) data;
//WRITE BYTES TO SD CARD
printf("About to receive %d file chars:\n\n",numBytesFile);
for (i = 0; i < numBytesFile; i++) {
while (alt_up_rs232_get_used_space_in_read_FIFO(uart)== 0);
alt_up_rs232_read_data(uart, &data, &parity);
alt_up_sd_card_write(handle, data);
}
printf("File done\n");
alt_up_sd_card_fclose(handle);
}
//This bracket ends receiving a file
}
//Send file to middleman from SD
else if (mode == 2) {
printf("Waiting for num char:\n");
// The second byte is the number of characters in the file name
while (alt_up_rs232_get_used_space_in_read_FIFO(uart) == 0)
;
alt_up_rs232_read_data(uart, &data, &parity);
numFileName = (int) data;
//numFileName -= 48;
//Now receive the file name
printf("About to receive %d characters:\n\n", numFileName);
printf("Filename received:");
for (i = 0; i < numFileName; i++) {
while (alt_up_rs232_get_used_space_in_read_FIFO(uart)
== 0)
;
alt_up_rs232_read_data(uart, &data, &parity);
fileName[i] = data;
printf("%c", data);
}
printf("\n");
fileName[i] = '.';
fileName[i+1] = 't';
fileName[i+2] = 'x';
fileName[i+3] = 't';
fileName[i+4]= '\0';
handle = alt_up_sd_card_fopen(fileName, 0);
if (handle == -1) {
//SEND ANDROID AN ASCII 2 TO LET THEM KNOW TO RECEIVE FILE NAME
alt_up_rs232_write_data(uart, 50);
printf("neg handle");
if(alt_up_sd_card_find_first(".",listName) ==-1){
//SEND ANDROID AN ASCII 2 TO LET THEM KNOW THERES NO FILE NAMES
alt_up_rs232_write_data(uart, 50);
printf("no files");
}
else{
//SEND ANDROID LIST OF FILE NAMES
printf("some files");
i=0;
for(i = 0; listName[i] != '.'; i++){
alt_up_rs232_write_data(uart, listName[i]);
}
alt_up_rs232_write_data(uart, 32);
while(alt_up_sd_card_find_next(listName)!=-1){
i=0;
for(i = 0; listName[i] != '.'; i++){
alt_up_rs232_write_data(uart, listName[i]);
}
alt_up_rs232_write_data(uart, 32);
}
alt_up_rs232_write_data(uart, 1);
printf("done files");
}
} else {
//SEND ANDROID AN ASCII 1 TO LET THEM KNOW TO RECEIVE A FILE
alt_up_rs232_write_data(uart, 49);
// SHIFT BYTES LEFT AND CONCATENATE TO ACCOUNT FOR SEVERAL BYTES WORTH OF FILE
// WRITE FIRST 4 BYTES OF FILE AS SIZE OF FILE IN BYTES
data = alt_up_sd_card_read(handle);
alt_up_rs232_write_data(uart, data);
numFile = (int) data;
numFile = numFile << 8;
data = (int) alt_up_sd_card_read(handle);
alt_up_rs232_write_data(uart, data);
numFile += (int) data;
numFile = numFile << 8;
data = (int) alt_up_sd_card_read(handle);
alt_up_rs232_write_data(uart, data);
numFile += (int) data;
numFile = numFile << 8;
data = (int) alt_up_sd_card_read(handle);
alt_up_rs232_write_data(uart, data);
numFile += (int) data;
printf("About to send %d file bytes\n", numFile);
while (numFile > 0) {
while(alt_up_rs232_get_available_space_in_write_FIFO(uart) == 0);
data = alt_up_sd_card_read(handle);
alt_up_rs232_write_data(uart, data);
numFile--;
}
// WRITE A "FILE DONE" STRING OR WHATEVER WE DECIDE
printf("sending end bits\n");
// alt_up_rs232_write_data(uart, 1);
//
//
//
alt_up_sd_card_fclose(handle);
}
//This bracket ends sending a file
}
//Something broke
else {
printf("Wrong mode, something broke, starting over\n");
}
}
}
else {
printf("Card Reader is not working\n");
}
}
return 0;
//end main
}
