Also keep the backlight on in mpegplayer when plugged in. Fixes FS #7584. Created two helper functions for this, because this issue also exists in other plugins (to do). The helper functions are in the pluginlib in helper.[ch], where other common stuff can be put.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14321 a1c6a512-1295-4272-9138-f99709370657

apps/plugin.c

@@ -132,6 +132,9 @@ static const struct plugin_api rockbox_api = {
     backlight_on,
     backlight_off,
     backlight_set_timeout,
+#if CONFIG_CHARGING
+    backlight_set_timeout_plugged,
+#endif
     gui_syncsplash,
 #ifdef HAVE_REMOTE_LCD
     /* remote lcd */

apps/plugin.h

@@ -112,12 +112,12 @@
 #define PLUGIN_MAGIC 0x526F634B /* RocK */
 
 /* increase this every time the api struct changes */
-#define PLUGIN_API_VERSION 71
+#define PLUGIN_API_VERSION 72
 
 /* update this to latest version if a change to the api struct breaks
    backwards compatibility (and please take the opportunity to sort in any
    new function which are "waiting" at the end of the function table) */
-#define PLUGIN_MIN_API_VERSION 71
+#define PLUGIN_MIN_API_VERSION 72
 
 /* plugin return codes */
 enum plugin_status {
@@ -210,6 +210,9 @@ struct plugin_api {
     void (*backlight_on)(void);
     void (*backlight_off)(void);
     void (*backlight_set_timeout)(int index);
+#if CONFIG_CHARGING
+    void (*backlight_set_timeout_plugged)(int index);
+#endif
     void (*splash)(int ticks, const char *fmt, ...) ATTRIBUTE_PRINTF(2, 3);
 
 #ifdef HAVE_REMOTE_LCD

apps/plugins/lib/SOURCES

@@ -30,3 +30,4 @@ bmp.c
 #endif
 #endif
 pluginlib_actions.c
+helper.c

apps/plugins/lib/helper.c

@@ -0,0 +1,46 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id: helper.c 12179 2007-08-14 23:08:15Z peter $
+ *
+ * Copyright (C) 2007 by Peter D'Hoye
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "plugin.h"
+
+/* the plugin must declare the plugin_api struct pointer itself */
+extern struct plugin_api* rb;
+
+/* force the backlight on */
+void backlight_force_on(void)
+{
+#ifdef HAVE_BACKLIGHT
+    rb->backlight_set_timeout(1);
+#if CONFIG_CHARGING
+    rb->backlight_set_timeout_plugged(1);
+#endif
+#endif
+}    
+
+/* reset backlight operation to its settings */
+void backlight_use_settings(void)
+{
+#ifdef HAVE_BACKLIGHT
+    rb->backlight_set_timeout(rb->global_settings->backlight_timeout);
+#if CONFIG_CHARGING
+    rb->backlight_set_timeout_plugged(rb->global_settings-> \
+                                                     backlight_timeout_plugged);
+#endif
+#endif
+}

apps/plugins/lib/helper.h

@@ -0,0 +1,30 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id: helper.h 10254 2007-08-14 19:44:44Z peter $
+ *
+ * Copyright (C) 2007 by Peter D'Hoye
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef _LIB_HELPER_H_
+#define _LIB_HELPER_H_
+
+#include "plugin.h"
+
+/**
+ * Backlight on/off operations
+ */
+void backlight_force_on(void);
+void backlight_use_settings(void);
+
+#endif

apps/plugins/mpegplayer/mpegplayer.c

@@ -104,6 +104,7 @@ FPS     | 27Mhz   | 100Hz          | 44.1KHz   | 48KHz
 
 #include "plugin.h"
 #include "gray.h"
+#include "helper.h"
 
 #include "mpeg2.h"
 #include "mpeg_settings.h"
@@ -1856,14 +1857,7 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
     rb->lcd_clear_display();
     rb->lcd_update();
 
-    /* make sure the backlight is always on when viewing video
+    backlight_force_on();
-       (actually it should also set the timeout when plugged in,
-       but the function backlight_set_timeout_plugged is not
-       available in plugins) */
-#ifdef HAVE_BACKLIGHT
-    if (rb->global_settings->backlight_timeout > 0)
-        rb->backlight_set_timeout(1);
-#endif
 
 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
     rb->cpu_boost(true);
@@ -2000,10 +1994,7 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
 
     rb->pcm_set_frequency(HW_SAMPR_DEFAULT);
 
-#ifdef HAVE_BACKLIGHT
+    backlight_use_settings();
-    /* reset backlight settings */
-    rb->backlight_set_timeout(rb->global_settings->backlight_timeout);
-#endif
 
     return status;
 }