diff options
| -rw-r--r-- | firmware/target/arm/ipod/button-1g-3g.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/firmware/target/arm/ipod/button-1g-3g.c b/firmware/target/arm/ipod/button-1g-3g.c index 3a9b9ea..5455205 100644 --- a/firmware/target/arm/ipod/button-1g-3g.c +++ b/firmware/target/arm/ipod/button-1g-3g.c @@ -213,7 +213,18 @@ int button_read_device(void) hold_button = button_hold(); if (hold_button != hold_button_old) + { backlight_hold_changed(hold_button); +#ifdef IPOD_1G2G + /* Disable the 1st gen's wheel on hold in order to save power. + * The wheel draws ~12mA when enabled! Toggling the bit doesn't hurt + * on 2nd gen, because the pin is set to input (headphone detect). */ + if (hold_button) + GPIOB_OUTPUT_VAL &= ~0x01; /* disable wheel */ + else + GPIOB_OUTPUT_VAL |= 0x01; /* enable wheel */ +#endif + } return int_btn; } |