Diff: main.cpp

Revision:

0:ad2574c88043

Child:

1:27b1efbf5a46

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Apr 06 15:16:45 2011 +0000
@@ -0,0 +1,123 @@
+#include "mbed.h"
+
+#include "MSCFileSystem.h"
+#include "billy.h"
+#include "EthernetNetIf.h"
+#include "HTTPClient.h"
+
+EthernetNetIf eth;
+HTTPClient http;
+
+MSCFileSystem usb("usb");
+
+DigitalOut setup_led(LED1);
+DigitalOut waiting_led(LED2);
+DigitalOut downloading_led(LED3);
+DigitalOut button_led(LED4);
+
+int get_file(char *url, char *file) {
+    printf("Getting url to file [%s]...\n", url);
+    HTTPFile f(file);
+    HTTPResult r = http.get(url, &f);
+    if (r != HTTP_OK) {
+        printf("HTTPResult error %d\n", r);
+        return 0;
+    }
+    return 1;
+}
+
+int get_string(char *url, char *str) {
+    printf("Getting url [%s] to string...\n", url);
+    HTTPText t;
+    HTTPResult r = http.get("http://danros.org.uk/billy/billy.py", &t);
+    if (r != HTTP_OK) {
+        printf("HTTPResult error %d\n", r);
+        str[0] = 0;
+        return 0;
+    }
+    strcpy(str, t.gets());
+    return 1;
+}
+
+int billy_get_id(char *id) {
+    return get_string("http://danros.org.uk/billy/billy.py", id);
+}
+
+int billy_get_wav(char *id) {
+    char url[128];
+    sprintf(url, "http://danros.org.uk/billydata/%s.wav", id);
+    return get_file(url, "/usb/download.wav");
+}
+
+int billy_get_mov(char *id) {
+    char url[128];
+    sprintf(url, "http://danros.org.uk/billydata/%s.txt", id);
+    return get_file(url, "/usb/download.txt");
+}
+
+int billy_get_new_message() {
+    static char last[64] = {0};
+    char id[64];
+    billy_get_id(id);
+    if (strcmp(last, id) != 0) { // new message
+        printf("New message found...\n");
+        downloading_led = 1;
+        billy_get_wav(id);
+        billy_get_mov(id);
+        strcpy(last, id);
+        downloading_led = 0;
+        return 1;
+    }
+    return 0;
+}
+
+const char *songs[] = {"baddonut", "belcher", "people", "clinton", "coconut", "bushfool", "ecky", "ni", "looney", "lumber"};
+int nsongs = 10;
+
+int billy_play_next() {
+    static int n = 0;
+    char wavname[64];
+    char cmdname[64];
+    sprintf(wavname, "/usb/%s.wav", songs[n]);
+    sprintf(cmdname, "/usb/%s.txt", songs[n]);
+    n = (n + 1) % nsongs;
+    billy_play(wavname, cmdname);
+}
+
+// Capture button presses
+InterruptIn button(p24);
+void button_press() {
+    if(button) {
+        button_led = 1;
+    }
+}
+
+int main() {
+    printf("Twittering billy...\n");
+
+    printf("Setup network...\n");
+    setup_led = 1;
+    EthernetErr ethErr = eth.setup();
+    if (ethErr) {
+        error("Error %d in setup\n", ethErr);
+    }
+    printf("Network setup OK!\n");
+    setup_led = 0;
+
+    button.rise(&button_press);
+
+    while (1) {
+        if(billy_get_new_message()) {
+            billy_play("/usb/download.wav", "/usb/download.txt");
+        }
+
+        if (button_led) {
+            billy_play_next();
+            button_led = 0;
+        }
+
+        waiting_led = !waiting_led;
+        wait(1);
+    }
+}
+