e200v2: implement the backlight handling (copy/paste from the c200v1/e200v1 code - this should probably be unified, along with other upcoming v2 code), plus clean up the lcd init by calling lcd_init() directly in the bootloader, instead of lcd_init_device().

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18910 a1c6a512-1295-4272-9138-f99709370657

bootloader/sansa_as3525.c

@@ -25,10 +25,11 @@
 #include <stdio.h>
 #include <system.h>
 #include <inttypes.h>
-#include "lcd.h"
-#include "common.h"
 #include "config.h"
+#include "lcd.h"
+#include "backlight-target.h"
 #include "as3525-codec.h"
+#include "common.h"
 
 int show_logo(void);
 void main(void)
@@ -38,19 +39,15 @@ void main(void)
 
     system_init();
 
-    lcd_init_device();
+    lcd_init();
-    lcd_clear_display();
-
-    lcd_update();
-
-#ifdef HAVE_LCD_ENABLE
-    lcd_enable(true);
-#endif
 
     show_logo();
 
+    as3525_codec_init();  /* Required for backlight on e200v2 */
+
+    _backlight_on();
+
     /* show player id to demonstrate communication with codec part */
-    as3525_codec_init();
     for (i = 0; i < 8; i++) {
         buf[i] = as3525_codec_read(0x38 + i);
     }

firmware/SOURCES

@@ -1046,6 +1046,7 @@ target/arm/as3525/as3525-codec.c
 #ifndef SIMULATOR
 target/arm/as3525/sansa-e200v2/lcd-e200v2.c
 target/arm/as3525/sansa-e200v2/button-e200v2.c
+target/arm/as3525/sansa-e200v2/backlight-e200v2.c
 target/arm/as3525/as3525-codec.c
 #endif /* !SIMULATOR */
 #endif /* SANSA_E200V2 */

firmware/export/config-e200v2.h

@@ -47,6 +47,7 @@
 #define LCD_DEPTH  16   /* 65536 colours */
 #define LCD_PIXELFORMAT RGB565 /* rgb565 */
 
+#ifndef BOOTLOADER
 /* define this if you have LCD enable function */
 #define HAVE_LCD_ENABLE
 
@@ -54,6 +55,7 @@
    should be defined as well. */
 #define HAVE_LCD_SLEEP
 #define HAVE_LCD_SLEEP_SETTING
+#endif
 
 /* define this if you can flip your LCD */
 #define HAVE_LCD_FLIP
@@ -165,7 +167,7 @@
 #define CONFIG_USBOTG USBOTG_AS3525
 
 /* enable these for the experimental usb stack */
-#define HAVE_USBSTACK
+//#define HAVE_USBSTACK
 #define USB_VENDOR_ID 0x0781
 #define USB_PRODUCT_ID 0x7423
 

firmware/target/arm/as3525/sansa-clip/lcd-ssd1303.c

@@ -228,6 +228,8 @@ void lcd_init_device(void)
         lcd_write_data(p_bytes, LCD_FULLSCREEN /* overscan */);
     }
 
+    lcd_enable(true);
+
     lcd_update();
 }
 

firmware/target/arm/as3525/sansa-e200v2/backlight-e200v2.c

@@ -0,0 +1,71 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 by Barry Wardell
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "config.h"
+#include "backlight-target.h"
+#include "system.h"
+#include "lcd.h"
+#include "backlight.h"
+#include "as3525-codec.h"
+#include "as3514.h"
+
+static unsigned short backlight_brightness = DEFAULT_BRIGHTNESS_SETTING;
+
+void _backlight_set_brightness(int brightness)
+{
+    backlight_brightness = brightness;
+
+    if (brightness > 0)
+        _backlight_on();
+    else
+        _backlight_off();
+}
+
+void _backlight_on(void)
+{
+#ifdef HAVE_LCD_SLEEP
+    backlight_lcd_sleep_countdown(false); /* stop counter */
+#endif
+#ifdef HAVE_LCD_ENABLE
+    lcd_enable(true); /* power on lcd + visible display */
+#endif
+    as3525_codec_write(AS3514_DCDC15, backlight_brightness);
+}
+
+void _backlight_off(void)
+{
+    as3525_codec_write(AS3514_DCDC15, 0x0);
+#ifdef HAVE_LCD_ENABLE
+    lcd_enable(false); /* power off visible display */
+#endif
+#ifdef HAVE_LCD_SLEEP
+    backlight_lcd_sleep_countdown(true); /* start countdown */
+#endif
+}
+
+void _buttonlight_on(void)
+{
+    /* TODO */
+}
+
+void _buttonlight_off(void)
+{
+    /* TODO */
+}

firmware/target/arm/as3525/sansa-e200v2/backlight-target.h

@@ -7,7 +7,7 @@
  *                     \/            \/     \/    \/            \/
  * $Id$
  *
- * Copyright (C) 2008 ??
+ * Copyright (C) 2006 Barry Wardell
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -21,17 +21,12 @@
 #ifndef BACKLIGHT_TARGET_H
 #define BACKLIGHT_TARGET_H
 
-static inline bool _backlight_init(void)
+#define _backlight_init() true
-{
+void _backlight_on(void);
-    return true;
+void _backlight_off(void);
-}
+void _backlight_set_brightness(int brightness);
-
+int  __backlight_is_on(void);
-static inline void _backlight_on(void)
-{
-}
-
-static inline void _backlight_off(void)
-{
-}
 
+void _buttonlight_on(void);
+void _buttonlight_off(void);
 #endif