diff options
Diffstat (limited to 'firmware/target/arm/as3525/sansa-fuzev2/button-fuzev2.c')
| -rw-r--r-- | firmware/target/arm/as3525/sansa-fuzev2/button-fuzev2.c | 94 |
1 files changed, 92 insertions, 2 deletions
diff --git a/firmware/target/arm/as3525/sansa-fuzev2/button-fuzev2.c b/firmware/target/arm/as3525/sansa-fuzev2/button-fuzev2.c index 287e159e53..5bd8afebc1 100644 --- a/firmware/target/arm/as3525/sansa-fuzev2/button-fuzev2.c +++ b/firmware/target/arm/as3525/sansa-fuzev2/button-fuzev2.c @@ -22,7 +22,15 @@ #include "config.h" #include "system.h" #include "button.h" +#include "backlight.h" +/* + * TODO: Scrollwheel! + */ + +#ifdef HAS_BUTTON_HOLD +static bool hold_button = false; +#endif void button_init_device(void) { } @@ -30,12 +38,94 @@ void button_init_device(void) /* * Get button pressed from hardware */ + int button_read_device(void) { - return 0; + int btn = 0; + volatile int delay; + static bool hold_button_old = false; + static long power_counter = 0; + unsigned gpiod = GPIOD_DATA; + unsigned gpioa_dir = GPIOA_DIR; + unsigned gpiod6; + for(delay = 500; delay; delay--) nop; + CCU_IO &= ~(1<<12); + for(delay=8;delay;delay--) nop; + GPIOB_DIR |= 1<<3; + GPIOB_PIN(3) = 1<<3; + GPIOC_DIR = 0; + GPIOB_DIR &= ~(1<<1); + GPIOB_DIR |= 1<<0; + GPIOB_PIN(0) = 1; + for(delay = 500; delay; delay--) + nop; + gpiod6 = GPIOD_PIN(6); + GPIOB_PIN(0) = 0; + for(delay = 240; delay; delay--) + nop; + GPIOD_DIR = 0xff; + GPIOA_DIR &= ~(1<<6|1<<7); + GPIOD_DATA = 0; + GPIOD_DIR = 0; + if (GPIOC_PIN(1) & 1<<1) + btn |= BUTTON_DOWN; + if (GPIOC_PIN(2) & 1<<2) + btn |= BUTTON_UP; + if (GPIOC_PIN(3) & 1<<3) + btn |= BUTTON_LEFT; + if (GPIOC_PIN(4) & 1<<4) + btn |= BUTTON_SELECT; + if (GPIOC_PIN(5) & 1<<5) + btn |= BUTTON_RIGHT; + if (GPIOB_PIN(1) & 1<<1) + btn |= BUTTON_HOME; + if (gpiod6 & 1<<6) + { /* power/hold is on the same pin. we know it's hold if the bit isn't + * set now anymore */ + if (GPIOD_PIN(6) & 1<<6) + { + hold_button = false; + btn |= BUTTON_POWER; + } + else + { + hold_button = true; + } + } + + GPIOD_DIR = 0xff; + GPIOD_DATA = gpiod; + GPIOA_DIR = gpioa_dir; + GPIOD_DIR = 0; + CCU_IO |= 1<<12; +#ifdef HAS_BUTTON_HOLD + /* light handling */ + if (hold_button != hold_button_old) + { + hold_button_old = hold_button; + backlight_hold_changed(hold_button); + } + if (hold_button) + { + power_counter = HZ; + return 0; + } + /* read power, but not if hold button was just released, since + * you basically always hit power due to the slider mechanism after releasing + * (fuze only) + */ + else if (power_counter > 0) + { + power_counter--; + btn &= ~BUTTON_POWER; + } +#endif + return btn; } +#ifdef HAS_BUTTON_HOLD bool button_hold(void) { - return false; + return hold_button; } +#endif |