From 04f9cc79937a6939e800c646b4c8e9650898bd7e Mon Sep 17 00:00:00 2001
From: Linus Nielsen Feltzing <linus@haxx.se>
Date: Wed, 4 Feb 2004 09:53:22 +0000
Subject: [PATCH] Added a debug option for the FM radio detection

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4293 a1c6a512-1295-4272-9138-f99709370657
---
 apps/debug_menu.c     | 44 +++++++++++++++++++++++++++++++++++++++++++
 apps/recorder/radio.c |  5 ++++-
 2 files changed, 48 insertions(+), 1 deletion(-)

diff --git a/apps/debug_menu.c b/apps/debug_menu.c
index 5f22776a4b..78442dcf9c 100644
--- a/apps/debug_menu.c
+++ b/apps/debug_menu.c
@@ -42,6 +42,7 @@
 #include "settings.h"
 #include "ata.h"
 #include "fat.h"
+#include "radio.h"
 #ifdef HAVE_LCD_BITMAP
 #include "widgets.h"
 #include "peakmeter.h"
@@ -1377,6 +1378,46 @@ bool dbg_save_roms(void)
     return false;
 }
 
+#ifdef HAVE_FMRADIO
+extern int debug_fm_detection;
+
+bool dbg_fm_radio(void)
+{
+    char buf[32];
+    int button;
+    bool fm_detected;
+
+#ifdef HAVE_LCD_BITMAP
+    lcd_setmargins(0, 0);
+#endif
+
+    while(1)
+    {
+        lcd_clear_display();
+        fm_detected = radio_hardware_present();
+        
+        snprintf(buf, sizeof buf, "HW detected: %s", fm_detected?"yes":"no");
+        lcd_puts(0, 0, buf);
+        snprintf(buf, sizeof buf, "Result: %08x", debug_fm_detection);
+        lcd_puts(0, 1, buf);
+        lcd_update();
+        
+        button = button_get(true);
+
+        switch(button)
+        {
+#ifdef HAVE_RECORDER_KEYPAD
+            case BUTTON_OFF:
+#else
+            case BUTTON_STOP:
+#endif
+                return false;
+        }
+    }
+    return false;
+}
+#endif
+
 bool debug_menu(void)
 {
     int m;
@@ -1411,6 +1452,9 @@ bool debug_menu(void)
 #endif /* PM_DEBUG */
 #endif /* HAVE_LCD_BITMAP */
         { "View runtime", view_runtime },
+#ifdef HAVE_FMRADIO
+        { "FM Radio", dbg_fm_radio },
+#endif
     };
 
     m=menu_init( items, sizeof items / sizeof(struct menu_items) );
diff --git a/apps/recorder/radio.c b/apps/recorder/radio.c
index 65b8beb164..819d2a5d5b 100644
--- a/apps/recorder/radio.c
+++ b/apps/recorder/radio.c
@@ -64,6 +64,8 @@ static struct fmstation presets[MAX_PRESETS];
 
 static char default_filename[] = "/.rockbox/fm-presets-default.fmr";
 
+int debug_fm_detection;
+
 void radio_load_presets(void);
 bool radio_preset_select(void);
 bool radio_menu(void);
@@ -81,6 +83,7 @@ bool radio_hardware_present(void)
     
     fmradio_set(2, 0x140885); /* 5kHz, 7.2MHz crystal, test mode 1 */
     val = fmradio_read(0);
+    debug_fm_detection = val;
     if(val == 0x140885)
         return true;
     else
@@ -554,7 +557,7 @@ void radio_load_presets(void)
         if(fd >= 0)
         {
             i = 0;
-            while(!done)
+            while(!done && num_presets < MAX_PRESETS)
             {
                 rc = read_line(fd, buf, 128);
                 if(rc > 0)