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, 8 insertions, 4 deletions

diff --git a/firmware/target/arm/as3525/sansa-c200v2/backlight-c200v2.c b/firmware/target/arm/as3525/sansa-c200v2/backlight-c200v2.c
index f036792fc0..858e9aed49 100644
--- a/firmware/target/arm/as3525/sansa-c200v2/backlight-c200v2.c
+++ b/firmware/target/arm/as3525/sansa-c200v2/backlight-c200v2.c
@@ -26,8 +26,12 @@
 #include "ascodec-target.h"
 #include "as3514.h"
 
-/* TODO: This file is copy & pasted from backlight-e200v2-fuze.c, as I think
- * it'll be the same for c200v2; prove it */
+bool _backlight_init(void)
+{
+    GPIOA_DIR |= 1<<5;
+    return true;
+}
+
 void _backlight_set_brightness(int brightness)
 {
     if (brightness > 0)
@@ -41,12 +45,12 @@ void _backlight_on(void)
 #ifdef HAVE_LCD_ENABLE
     lcd_enable(true); /* power on lcd + visible display */
 #endif
-    ascodec_write(AS3514_DCDC15, backlight_brightness);
+    GPIOA_PIN(5) = 1<<5;
 }
 
 void _backlight_off(void)
 {
-    ascodec_write(AS3514_DCDC15, 0x0);
+    GPIOA_PIN(5) = 0;
 #ifdef HAVE_LCD_ENABLE
     lcd_enable(false); /* power off visible display */
 #endif