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New USB charging system, part 1 - API rework and user-visible setting update

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1) "Charge during USB connection" option is now tristate: off/on/force. Currently "force" behaves just like "on", but in future it will allow charging even when it was not possible to positively identify a charger.

2) The H300 code has been adjusted to use the new system but there should be no functional differences, it already had the USB charging option and its USB/charging support is hardware controlled.

3) The Gigabeat S code has been adjusted to use the new system: the player now has the USB charging option, which wasn't previously available. The player will only charge at full speed when allowed to do so by a working USB host, so USB AC adapters won't work very well; however, they didn't work before either, so this is not a change in functionality.

4) The iPod Nano 2G code has been adjusted to use the new system: it already had the USB charging option. Using a USB AC adapter won't charge at full speed any more (it did before) - the old implementation was equivalent to the not-yet-implemented "force" option in the new system.

No other target should be affected. Support for the "force" mode and support for at least some other iPod models will come in a future commit :)


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26570 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Torne Wuff 2010-06-05 10:05:27 +00:00
parent e49464b387
commit 991e92fd3d
11 changed files with 87 additions and 39 deletions
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9
firmware/target/arm/s5l8700/ipodnano2g/power-nano2g.c
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@ -54,15 +54,10 @@ void power_init(void)
#if CONFIG_CHARGING
#ifdef HAVE_USB_CHARGING_ENABLE
bool usb_charging_enable(bool on)
void usb_charging_maxcurrent_change(int maxcurrent)
{
bool on = (maxcurrent >= 500);
PDAT11 = (PDAT11 & ~1) | (on ? 1 : 0);
return on;
}
bool usb_charging_enabled(void)
{
return PDAT11 & 1;
}
#endif