Rework powermgmt to enable code re-use on appliation and sims.

* Introduce CONFIG_BATTERY_MEASURE define, to allow targets (application)
to break powermgmt.c's assumption about the ability to read battery voltage.
There's now additionally percentage (android) and remaining time measure
(maemo). No measure at all also works (sdl app). If voltage can't be measured,
then battery_level() is king and it'll be used for power_history and runtime
estimation.

* Implement target's API in the simulator, i.e. _battery_voltage(), so it
doesn't need to implement it's own powermgmt.c and other stubs. Now
the sim behaves much more like a native target, although it still
changes the simulated battery voltage quickly,

* Other changes include include renaming battery_adc_voltage() to
_battery_voltage(), for consistency with the new target functions and
making some of the apps code aware that voltage and runtime estimation
is not always available.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31548 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 4 insertions, 7 deletions

diff --git a/firmware/export/config/nokian900.h b/firmware/export/config/nokian900.h
index a36aebf8db..1e74fd527e 100644
--- a/firmware/export/config/nokian900.h
+++ b/firmware/export/config/nokian900.h
@@ -74,14 +74,11 @@
 #define HAVE_SDL
 #define HAVE_SDL_AUDIO
 
-#define HAVE_SW_TONE_CONTROLS 
+#define HAVE_SW_TONE_CONTROLS
 
-/* Define current usage levels. */
-#define CURRENT_NORMAL     88 /* 18 hours from a 1600 mAh battery */  
-#define CURRENT_BACKLIGHT  30 /* TBD */ 
-#define CURRENT_RECORD     0  /* no recording yet */ 
-
-/* Define this to the CPU frequency */
+/* can provide both remaining percentage and time information */
+#define CONFIG_BATTERY_MEASURE (PERCENTAGE_MEASURE|TIME_MEASURE)
+#define NO_LOW_BATTERY_SHUTDOWN
 /*
 #define CPU_FREQ 48000000
 */