Sansa c200v2 : lcd & backlight support, using the c200v1 lcd driver

The LCD driver is unified and lcd_send_command now takes 2 arguments : the command and its argument.
    If there is no argument, it's set to 0 and a NOP command is issued
    If there is more than one argument (set X/Y address), the 2nd argument is sent as a 2nd command, and a NOP command is issued after it.
    Benefit : c200v2 transfers the command and the argument in one 16 bits transfer
    Performance should not be affected since commands without argument are only used in lcd_init() and lcd_enable()

lcd_send_data() now transfers whole lines (or columns) instead of single pixels
yuv is disabled for c200v2 for now

Some buttons can be read, including left button (bit 6 of DBOP_DIN), but for some reason they have no effect in rockbox: to be investigated

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21321 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 3 insertions, 1 deletions

diff --git a/firmware/target/arm/as3525/sansa-c200v2/backlight-target.h b/firmware/target/arm/as3525/sansa-c200v2/backlight-target.h
index e8a60fa881..06076dd39f 100644
--- a/firmware/target/arm/as3525/sansa-c200v2/backlight-target.h
+++ b/firmware/target/arm/as3525/sansa-c200v2/backlight-target.h
@@ -21,7 +21,9 @@
 #ifndef BACKLIGHT_TARGET_H
 #define BACKLIGHT_TARGET_H
 
-#define _backlight_init() true
+#include <stdbool.h>
+
+bool _backlight_init(void);
 void _backlight_on(void);
 void _backlight_off(void);
 void _backlight_set_brightness(int brightness);