len0rd/rockbox
1
0
Fork 1
mirror of https://github.com/Rockbox/rockbox.git synced 2025-12-09 05:05:20 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

imx233: make button-lradc drive able to handle VDDIO derived values

Browse source 
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
This commit is contained in:
Amaury Pouly 2014-02-04 00:23:35 +01:00
parent 0e0c610df0
commit 0324bf59a8
4 changed files with 93 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

11
firmware/target/arm/imx233/creative-zen/button-target.h
View file

@ -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