Sansa clipzip: miscellaneous updates

* add support for OF version 01.01.17 in mkamsboot
* introduce and implement oled_brightness function
* configure voltage CVDD2 to 2.8V (like the OF does)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30831 a1c6a512-1295-4272-9138-f99709370657

4 files changed, 24 insertions, 9 deletions

diff --git a/firmware/target/arm/as3525/sansa-clipzip/lcd-clipzip.c b/firmware/target/arm/as3525/sansa-clipzip/lcd-clipzip.c
index bfee2d2..899eb53 100644
--- a/firmware/target/arm/as3525/sansa-clipzip/lcd-clipzip.c
+++ b/firmware/target/arm/as3525/sansa-clipzip/lcd-clipzip.c
@@ -336,18 +336,28 @@ static void lcd_setup_rect(int x, int x_end, int y, int y_end)
 }
 
 /* sets the brightness of the OLED */
-void lcd_brightness(uint8_t red, uint8_t green, uint8_t blue)
+void oled_brightness(int brightness)
 {
+    int r, g, b;
+
     if (lcd_type == 0) {
-        lcd_write(0x40, red);   /* COLUMN_CURRENT_R */
-        lcd_write(0x41, green); /* COLUMN_CURRENT_G */
-        lcd_write(0x42, blue);  /* COLUMN_CURRENT_B */
+        r = 2 + 16*brightness;
+        g = 1 + 10*brightness;
+        b = 1 + (23*brightness)/2;
+    
+        lcd_write(0x40, r); /* COLUMN_CURRENT_R */
+        lcd_write(0x41, g); /* COLUMN_CURRENT_G */
+        lcd_write(0x42, b); /* COLUMN_CURRENT_B */
     }
     else {
+        r = 6 + 10*brightness;
+        g = 1 + 6*brightness;
+        b = 3 + 10*brightness;
+    
         lcd_write_cmd(0x0E);
-        lcd_write_nibbles(red);
-        lcd_write_nibbles(green);
-        lcd_write_nibbles(blue);
+        lcd_write_nibbles(r);
+        lcd_write_nibbles(g);
+        lcd_write_nibbles(b);
     }
 }
 
diff --git a/firmware/target/arm/as3525/sansa-clipzip/lcd-target.h b/firmware/target/arm/as3525/sansa-clipzip/lcd-target.h
index 137e973..4adf075 100644
--- a/firmware/target/arm/as3525/sansa-clipzip/lcd-target.h
+++ b/firmware/target/arm/as3525/sansa-clipzip/lcd-target.h
@@ -23,5 +23,5 @@
 #include "config.h"
 
 /* target-specific OLED brightness function */
-void lcd_brightness(uint8_t red, uint8_t green, uint8_t blue);
+void oled_brightness(int brightness);
 
diff --git a/firmware/target/arm/as3525/system-as3525.c b/firmware/target/arm/as3525/system-as3525.c
index 348b4ab..a79b934 100644
--- a/firmware/target/arm/as3525/system-as3525.c
+++ b/firmware/target/arm/as3525/system-as3525.c
@@ -285,7 +285,11 @@ void system_init(void)
     ascodec_write_pmu(0x18, 1, 0x35);
     /* AVDD17:    set AVDD17 power supply to 2.5V */
     ascodec_write_pmu(0x18, 7, 0x31);
-#else
+#ifdef SANSA_CLIPZIP
+    /* CVDD2:     set CVDD2 power supply to 2.8V */
+    ascodec_write_pmu(0x17, 2, 0xF4);
+#endif
+#else /* HAVE_AS3543 */
     ascodec_write(AS3514_CVDD_DCDC3, AS314_CP_DCDC3_SETTING);
 #endif /* HAVE_AS3543 */
 
diff --git a/rbutil/mkamsboot/mkamsboot.c b/rbutil/mkamsboot/mkamsboot.c
index c3ca69b..c50fe9f 100644
--- a/rbutil/mkamsboot/mkamsboot.c
+++ b/rbutil/mkamsboot/mkamsboot.c
@@ -174,6 +174,7 @@ static struct md5sums sansasums[] = {
 #if 0 /* disabled for now because it's not been proven they can be patched */
     { MODEL_CLIPZIP, "1.01.12", "45adea0873326b5af34f096e5c402f78" },
     { MODEL_CLIPZIP, "1.01.15", "f62af954334cd9ba1a87a7fa58ec6074" },
+    { MODEL_CLIPZIP, "1.01.17", "27bcb343d6950f35dc261629e22ba60c" },
 #endif
 };