Hardware controlled backlight brightness for iPod Video and Nano, retaining the software PWM fade in/ fade out. * Backlight handling cleanup, getting rid of one layer of 'lowlevelness'. * Use atomic GPIO bit manipulation for PP502x backlight handling.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15599 a1c6a512-1295-4272-9138-f99709370657

2 files changed, 35 insertions, 6 deletions

diff --git a/firmware/target/coldfire/iriver/h300/backlight-h300.c b/firmware/target/coldfire/iriver/h300/backlight-h300.c
index 4cec54f0d7..c0d441ad3f 100644
--- a/firmware/target/coldfire/iriver/h300/backlight-h300.c
+++ b/firmware/target/coldfire/iriver/h300/backlight-h300.c
@@ -25,7 +25,7 @@
 #include "pcf50606.h"
 #include "lcd.h"
 
-bool __backlight_init(void)
+bool _backlight_init(void)
 {
     or_l(0x00020000, &GPIO1_ENABLE);
     or_l(0x00020000, &GPIO1_FUNCTION);
@@ -34,21 +34,21 @@ bool __backlight_init(void)
     return true; /* Backlight always ON after boot. */
 }
 
-void __backlight_on(void)
+void _backlight_on(void)
 {
     lcd_enable(true);
     sleep(HZ/100); /* lcd needs time - avoid flashing for dark screens */
     or_l(0x00020000, &GPIO1_OUT);
 }
 
-void __backlight_off(void)
+void _backlight_off(void)
 {
     and_l(~0x00020000, &GPIO1_OUT);
     lcd_enable(false);
 }
 
 /* set brightness by changing the PWM */
-void __backlight_set_brightness(int val)
+void _backlight_set_brightness(int val)
 {
     /* disable IRQs while bitbanging */
     int old_irq_level = set_irq_level(HIGHEST_IRQ_LEVEL);
@@ -57,12 +57,12 @@ void __backlight_set_brightness(int val)
     set_irq_level(old_irq_level);
 }
 
-void __remote_backlight_on(void)
+void _remote_backlight_on(void)
 {
     and_l(~0x00000002, &GPIO1_OUT);
 }
 
-void __remote_backlight_off(void)
+void _remote_backlight_off(void)
 {
     or_l(0x00000002, &GPIO1_OUT);
 }
diff --git a/firmware/target/coldfire/iriver/h300/backlight-target.h b/firmware/target/coldfire/iriver/h300/backlight-target.h
new file mode 100644
index 0000000000..f0e1147304
--- /dev/null
+++ b/firmware/target/coldfire/iriver/h300/backlight-target.h
@@ -0,0 +1,29 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 by Linus Nielsen Feltzing
+ *
+ * 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 BACKLIGHT_TARGET_H
+#define BACKLIGHT_TARGET_H
+
+bool _backlight_init(void); /* Returns backlight current state (true=ON). */
+void _backlight_on(void);
+void _backlight_off(void);
+void _backlight_set_brightness(int val);
+void _remote_backlight_on(void);
+void _remote_backlight_off(void);
+
+#endif