labw9

labW9barnestr/Src/main.c

@@ -1,7 +1,13 @@
 /**
  * @file main.c
  * @author Trevor Barnes
- * @brief 
+ * @brief Main driver for the task switching lab. Provides the code that 
+ * initlizes the tasker/tasks. Also initializes any components being used
+ * in the tasks.
+ * Experience: Although this lab is not finished, I could see how to go
+ * about implementing the task switching. Each requested task would have
+ * been intilialized and the program would continuously switch between
+ * each task for an alotted or infinite amount of time.
  * @version 0.1
  * @date 2022-02-11
  * 
@@ -14,10 +20,124 @@
 #include <string.h>
 #include <math.h>
 #include "uart_driver.h"
-#include "delay.h"
+#include "memory.h"
 #include "led.h"
+#include "delay.h"
+#include "piezoSpeaker.h"
 #include "tasker.h"
 
-int main(void) {
+#define F_CPU 16000000UL
 
+void printHelp() {
+	printf("*Commands*\n\r");
+	printf("'rmw {hex address}' - Reads mem at a given address\n\r");
+	printf("'wmw {hex address} {value}' - Writes the given value as a word to "
+		   "the given address\n\r");
+	printf("'dm {hex address} {length}' - Dumps the memory at a given address. "
+		   "Defaults to 16 B if no length is given\n\r");
+	printf("'ps {song choice}' - Plays a song with the given selection\n\r");
+	printf("'songs' - Prints info about each song selection\n\r");
+}
+void songInfo() {
+	printf("Type 1 or 2 to play a song!\n\r");
+	printf("Song 1: Imperial March from Star Wars\n\r");
+	printf("Song 2: Metropolis Theme from Ratchet & Clank\n\r");
+	printf("Song 3: Flower Garden from Yoshi's Island\n\r");
+}
+
+int main(void) {
+	init_usart2(57600, F_CPU);
+	piezo_init();
+	led_init();
+    // Entry point for each task
+    // TODO: Arbitrary values for now
+    uint32_t * t1 = 0;
+    uint32_t * t2 = 0;
+    // Setup tasks
+    init_tasker(2, 20);
+    // Init Knight Rider Lights
+    // TODO: Find out what values are reasonable to init with, arbitrary for now
+    init_task(1, 50, t1, 10);
+    // Init Music
+    init_task(2, 50, t2, 10);
+    // Constantly switch between tasks in forever loop
+
+    // Following will need to be moved and/or greatly altered
+	char line[50];
+	char command[10];
+	int address;
+	int data;
+	int length;
+	int songSelection;
+	char background;
+	for(;;) {
+		// Get command from user
+		fgets(line, 100, stdin);
+		// Parse only the command for strcmp
+		sscanf(line, "%s", command);
+		if (!strcmp(command, "help")) {
+			// Print Help
+			printHelp();
+		} else if (!strcmp(command, "songs")) {
+			// Print Song Info
+			songInfo();
+		} else if (!strcmp(command, "rmw")) {
+			// Read Memory
+			sscanf(line, "%s %X", command, &address);
+			readMem(address);
+		} else if (!strcmp(command, "wmw")) {
+			// Write Memory
+			sscanf(line, "%s %X %u", command, &address, &data);
+			writeMem(address, data);
+		} else if (!strcmp(command, "dm")) {
+			// Dump Memory
+			sscanf(line, "%s %X %u", command, &address, &length);
+			dumpMem(address, length);
+		} else if (!strcmp(command, "ps")) {
+			// Song Selection Command Format:
+			// "ps {songSelection} {background}"
+			sscanf(line, "%s %u %c", command, &songSelection, &background);
+			if (background == 'b') {
+				switch(songSelection) {
+				case 1:
+					printf("Playing Imperial March in the background\n\r");
+					play_song_br(songIM);
+					break;
+				case 2:
+					printf("Playing Metropolis Theme in the background\n\r");
+					play_song_br(songMT);
+					break;
+				case 3:
+					printf("Playing Flower Garden in the background\n\r");
+					play_song_br(songFG);
+					break;
+				default:
+					break;
+					printf("Invalid song selection\n\r");
+				}
+			} else {
+				// Without valid flag, program plays songs in foreground
+				switch(songSelection) {
+				case 1:
+					printf("Playing Imperial March\n\r");
+					play_song(songIM);
+					break;    
+				case 2:
+					printf("Playing Metropolis Theme\n\r");
+					play_song(songMT);
+					break;
+				case 3:
+					printf("Playing Flower Garden\n\r");
+					play_song(songFG);
+					break;
+				default:
+					break;
+					printf("Invalid song selection\n\r");
+				}
+			}
+			
+		} else {
+			printf("Invalid input, type 'help' for instructions\n\r");
+		}
+	}
 }