More Gigabeat button light fixes. Settings now work properly, startup does not cause the button lights to flash when disabled. Buttonlights are now shutdown on power off.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13368 a1c6a512-1295-4272-9138-f99709370657

firmware/backlight.c

@@ -109,6 +109,45 @@ static int backlight_on_button_hold = 0;
 static int button_backlight_timer;
 static int button_backlight_timeout = 5*HZ;
 
+/* internal interface */
+static void _button_backlight_on(void)
+{
+#ifndef SIMULATOR
+#ifdef HAVE_BUTTONLIGHT_BRIGHTNESS
+    __button_backlight_dim(false);
+#else
+    __button_backlight_on();
+#endif
+#endif
+}
+
+void _button_backlight_off(void)
+{
+#ifndef SIMULATOR
+#ifdef HAVE_BUTTONLIGHT_BRIGHTNESS
+    if(button_backlight_timeout>0)
+        __button_backlight_dim(true);
+    else
+#endif
+        __button_backlight_off();
+#endif
+}
+
+/* Update state of buttonlight according to timeout setting */
+static void buttonlight_update_state(void)
+{
+    button_backlight_timer = button_backlight_timeout;
+
+    /* Buttonlight == OFF in the setting? */
+    if (button_backlight_timer < 0)
+    {
+        button_backlight_timer = 0; /* Disable the timeout */
+        _button_backlight_off();
+    }
+    else
+        _button_backlight_on();
+}
+
 /* external interface */
 void button_backlight_on(void)
 {
@@ -127,33 +166,7 @@ void button_backlight_set_timeout(int index)
         /* if given a weird value, use default */
         index = 6;
     button_backlight_timeout = HZ * backlight_timeout_value[index];
-    if (index == 0) /* off */
+    buttonlight_update_state();
-        button_backlight_off();
-    else if (index == 1) /* on */
-        button_backlight_on();
-    
-    button_backlight_timer = button_backlight_timeout;
-}
-
-/* internal interface */
-static void _button_backlight_on(void)
-{
-    if (button_backlight_timeout < 0)
-        return;
-    button_backlight_timer = button_backlight_timeout;
-#ifndef SIMULATOR
-    __button_backlight_on();
-#endif
-}
-
-static void _button_backlight_off(void)
-{
-    if (button_backlight_timeout == 0)
-        return;
-    button_backlight_timer = 0;
-#ifndef SIMULATOR
-    __button_backlight_off();
-#endif
 }
 
 #endif
@@ -511,9 +524,10 @@ void backlight_thread(void)
 #endif
 #ifdef HAVE_BUTTON_LIGHT
             case BUTTON_LIGHT_ON:
-                _button_backlight_on();
+                buttonlight_update_state();
                 break;
             case BUTTON_LIGHT_OFF:
+                button_backlight_timer = 0;
                 _button_backlight_off();
                 break;
 #endif
@@ -796,7 +810,6 @@ void remote_backlight_hold_changed(bool rc_hold_button)
         remote_backlight_off(); /* setting == Off */
     else  /* setting == On, Normal, no hold button, or anything else */
         remote_backlight_on();
-
 }
 
 void remote_backlight_set_on_button_hold(int index)
@@ -863,6 +876,8 @@ void buttonlight_set_brightness(int val)
         val = MAX_BRIGHTNESS_SETTING;
 
     __buttonlight_set_brightness(val);
+    if(button_backlight_timeout<0)
+        _button_backlight_off();
 }
 #endif /* HAVE_BUTTONLIGHT_BRIGHTNESS */
 

firmware/target/arm/s3c2440/gigabeat-fx/backlight-meg-fx.c

@@ -69,6 +69,7 @@ unsigned char charging_leds[] = { 0x00, 0x20, 0x38, 0x3C };
 
 bool __backlight_init(void)
 {
+    buttonlight_brightness=DEFAULT_BRIGHTNESS_SETTING;
     backlight_brightness=DEFAULT_BRIGHTNESS_SETTING;
     backlight_control = BACKLIGHT_CONTROL_IDLE;
 
@@ -152,9 +153,9 @@ static void led_control_service(void)
         sc606regAval=DEFAULT_BRIGHTNESS_SETTING,
         sc606regBval=DEFAULT_BRIGHTNESS_SETTING,
         sc606regCval=DEFAULT_BRIGHTNESS_SETTING,
-        sc606regCONFval=3;
+        sc606regCONFval=0x03;
 
-    static bool sc606_changed=true;
+    static bool sc606_changed=false;
 
     if(sc606_changed==false)
     {
@@ -174,9 +175,9 @@ static void led_control_service(void)
                 backlight_control = BACKLIGHT_CONTROL_IDLE;
                 break;
             case BACKLIGHT_CONTROL_SET:
-                sc606regAval=backlight_brightness;
                 sc606_changed=true;
-                backlight_control = BACKLIGHT_CONTROL_ON;
+                sc606regAval=backlight_brightness;
+                backlight_control = BACKLIGHT_CONTROL_IDLE;
                 break;
             case BACKLIGHT_CONTROL_FADE:
                 /* Was this mode set while the backlight is already on/off? */
@@ -212,18 +213,19 @@ static void led_control_service(void)
             case BUTTONLIGHT_CONTROL_OFF:
                 sc606_changed=true;
                 sc606regCONFval &= ~0x3C;
+                sc606regBval=sc606regCval=0;
                 buttonlight_control=BUTTONLIGHT_CONTROL_IDLE;
                 break;
             case BUTTONLIGHT_CONTROL_ON:
                 sc606_changed=true;
-                sc606regBval=sc606regCval=buttonlight_brightness;
                 sc606regCONFval |= 0x3C;
+                sc606regBval=sc606regCval=buttonlight_brightness;
                 buttonlight_control=BUTTONLIGHT_CONTROL_IDLE;
                 break;
             case BUTTONLIGHT_CONTROL_SET:
-                sc606regBval=sc606regCval=buttonlight_brightness;
                 sc606_changed=true;
-                buttonlight_control = BUTTONLIGHT_CONTROL_ON;
+                sc606regBval=sc606regCval=buttonlight_brightness;
+                buttonlight_control = BUTTONLIGHT_CONTROL_IDLE;
                 break;
             case BUTTONLIGHT_CONTROL_FADE:
                 /* Was this mode set while the button light is already on/off? */
@@ -243,7 +245,7 @@ static void led_control_service(void)
                 else
                 {
                     sc606regCval=--sc606regBval;
-                    if(buttonlight_target==sc606regBval)
+                    if(sc606regBval==0)
                         buttonlight_control = BUTTONLIGHT_CONTROL_OFF;
                 }
 
@@ -294,20 +296,25 @@ static void led_control_service(void)
 
 void __button_backlight_on(void)
 {
-    buttonlight_control = BUTTONLIGHT_CONTROL_IDLE;
-    buttonlight_target = buttonlight_brightness;
-    if(buttonlight_brightness==0)
     buttonlight_control = BUTTONLIGHT_CONTROL_ON;
-    else
-        buttonlight_control = BUTTONLIGHT_CONTROL_FADE;
 }
 
 void __button_backlight_off(void)
 {
-    buttonlight_control = BUTTONLIGHT_CONTROL_IDLE;
-    buttonlight_target = 0;
-    if(buttonlight_brightness==0)
     buttonlight_control = BUTTONLIGHT_CONTROL_OFF;
+}
+
+void __button_backlight_dim(bool dim_now)
+{
+    buttonlight_control = BUTTONLIGHT_CONTROL_IDLE;
+    buttonlight_target = (dim_now == true) ? 0 : buttonlight_brightness;
+    if(buttonlight_target==0 && buttonlight_brightness==0)
+    {
+        if(dim_now == false)
+            buttonlight_control = BUTTONLIGHT_CONTROL_ON;
+        else
+            buttonlight_control = BUTTONLIGHT_CONTROL_OFF;
+    }
     else
         buttonlight_control = BUTTONLIGHT_CONTROL_FADE;
 }
@@ -330,7 +337,6 @@ void __backlight_dim(bool dim_now)
 
 void __buttonlight_set_brightness(int brightness)
 {
-    /* stop the interrupt from messing us up */
     buttonlight_control = BUTTONLIGHT_CONTROL_IDLE;
     buttonlight_brightness = brightness;
     buttonlight_control = BUTTONLIGHT_CONTROL_SET;

firmware/target/arm/s3c2440/gigabeat-fx/backlight-target.h

@@ -53,5 +53,6 @@ void __button_backlight_off(void);
 
 /* true: backlight fades off - false: backlight fades on */
 void __backlight_dim(bool dim);
+void __button_backlight_dim(bool dim_now);
 
 #endif

firmware/target/arm/s3c2440/gigabeat-fx/power-meg-fx.c

@@ -60,7 +60,8 @@ void power_off(void)
 {
     /* turn off backlight and wait for 1 second */
     __backlight_off();
-    sleep(HZ/2);
+    __button_backlight_off();
+    sleep(HZ);
     /* set SLEEP bit to on in CLKCON to turn off */
     CLKCON |=(1<<3);
 }