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| author | Amaury Pouly <amaury.pouly@gmail.com> | 2014-02-04 00:23:35 +0100 |
|---|---|---|
| committer | Amaury Pouly <amaury.pouly@gmail.com> | 2014-02-10 23:14:25 +0100 |
| commit | 0324bf59a8810cadf35d67f71f5ee409834ec4ee (patch) | |
| tree | a636cb9b3ab6cfd6c0d3c54eb5659294799291a2 /firmware/target/arm/imx233/creative-zen | |
| parent | 0e0c610df0d3d4044d0b21ddc1752a5dacd7f86e (diff) | |
| download | rockbox-0324bf59a8810cadf35d67f71f5ee409834ec4ee.tar.gz rockbox-0324bf59a8810cadf35d67f71f5ee409834ec4ee.zip | |
imx233: make button-lradc drive able to handle VDDIO derived values
In most devices, the button ladder is not actually derived from VDDIO but
from a constant voltage source, making it very easy to read it. However on
some devices like ther ZEN X-Fi Style, the ladder is wired to VDDIO we
can be changed so it's crucial that the button driver correctly scales the
values wrt VDDIO.
Change-Id: Ifc11abe2838fa7d16d0d60ecd96964a8dc5ea6d7
Diffstat (limited to 'firmware/target/arm/imx233/creative-zen')
| -rw-r--r-- | firmware/target/arm/imx233/creative-zen/button-target.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/firmware/target/arm/imx233/creative-zen/button-target.h b/firmware/target/arm/imx233/creative-zen/button-target.h index 65521d66e4..e9a3ac5ab7 100644 --- a/firmware/target/arm/imx233/creative-zen/button-target.h +++ b/firmware/target/arm/imx233/creative-zen/button-target.h @@ -25,11 +25,22 @@ bool button_debug_screen(void); +/* HOLD button */ #if !defined(CREATIVE_ZENXFISTYLE) #define HAS_BUTTON_HOLD #define IMX233_BUTTON_LRADC_HOLD_DET BLH_ADC #endif +/* VDDIO value */ +#if defined(CREATIVE_ZENXFISTYLE) +#define IMX233_BUTTON_LRADC_VDDIO 3660 +#elif defined(CREATIVE_ZEN) +#define IMX233_BUTTON_LRADC_VDDIO 3480 +#elif defined(CREATIVE_ZENXFI) +#define IMX233_BUTTON_LRADC_VDDIO 3500 +#endif + +/* LRADC channel */ #if defined(CREATIVE_ZENXFISTYLE) #define IMX233_BUTTON_LRADC_CHANNEL 2 #else |