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iPod Classic/6G: support USB suspend mode

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Actually Rockbox does not use this mode, it is supported by
other iPods, so implemented on Classic as well.

Change-Id: Ia6578506df27a95a7f7522b3034b764631a8bb3a
This commit is contained in:
Cástor Muñoz 2013-01-09 21:32:25 +01:00
parent 1d901a82fd
commit 17e57e3291
1 changed files with 11 additions and 2 deletions
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13
firmware/target/arm/s5l8702/ipod6g/power-ipod6g.c
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@ -61,8 +61,17 @@ bool ide_powered()
#ifdef HAVE_USB_CHARGING_ENABLE
void usb_charging_maxcurrent_change(int maxcurrent)
{
bool on = (maxcurrent >= 500);
GPIOCMD = 0xb060e | (on ? 1 : 0);
bool suspend_charging = (maxcurrent < 100);
bool fast_charging = (maxcurrent >= 500);
/* This GPIO is connected to the LTC4066's SUSP pin */
/* Setting it high prevents any power being drawn over USB */
/* which supports USB suspend */
GPIOCMD = 0xb070e | (suspend_charging ? 1 : 0);
/* This GPIO is connected to the LTC4066's HPWR pin */
/* Setting it low limits current to 100mA, setting it high allows 500mA */
GPIOCMD = 0xb060e | (fast_charging ? 1 : 0);
}
#endif