Idle poweroff fix for FM radio, as suggested by Mike Holden

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3645 a1c6a512-1295-4272-9138-f99709370657

apps/recorder/radio.c

@@ -69,7 +69,8 @@ bool radio_screen(void)
     lcd_clear_display();
     lcd_setmargins(0, 8);
     status_draw(false);
-
+    fmradio_set_status(FMRADIO_PLAYING);
+    
     /* Enable the Left and right A/D Converter */
     mas_codec_writereg(0x0, 0xccc7);
 
@@ -182,6 +183,8 @@ bool radio_screen(void)
                 break;
         }
     }
+
+    fmradio_set_status(0);
     return false;
 }
 #endif

firmware/drivers/fmradio.c

@@ -50,17 +50,7 @@
 /* delay loop */
 #define DELAY   do { int _x; for(_x=0;_x<10;_x++);} while (0)
 
-static struct mutex fmradio_mtx;
-
-void fmradio_begin(void)
-{
-    mutex_lock(&fmradio_mtx);
-}
-
-void fmradio_end(void)
-{
-    mutex_unlock(&fmradio_mtx);
-}
+static int fmstatus = 0;
 
 int fmradio_read(int addr)
 {
@@ -130,4 +120,14 @@ void fmradio_set(int addr, int data)
     CE_LO;
 }
 
+void fmradio_set_status(int status)
+{
+    fmstatus = status;
+}
+
+int fmradio_get_status(void)
+{
+    return fmstatus;
+}
+
 #endif

firmware/export/fmradio.h

@@ -21,5 +21,9 @@
 
 extern int fmradio_read(int addr);
 extern void fmradio_set(int addr, int data);
+extern void fmradio_set_status(int status);
+extern int fmradio_get_status(void);
+
+#define FMRADIO_PLAYING 1
 
 #endif

firmware/powermgmt.c

@@ -34,6 +34,9 @@
 #include "usb.h"
 #include "powermgmt.h"
 #include "backlight.h"
+#ifdef HAVE_FMRADIO
+#include "fmradio.h"
+#endif
 
 #ifdef SIMULATOR
 
@@ -299,6 +302,9 @@ static void handle_auto_poweroff(void)
     charger_was_inserted = charger_is_inserted;
     
     if(timeout &&
+#ifdef HAVE_FMRADIO
+       !fmradio_get_status() &&
+#endif
        !usb_inserted() &&
        (mpeg_stat == 0 ||
         mpeg_stat == (MPEG_STATUS_PLAY | MPEG_STATUS_PAUSE)))