diff options
Diffstat (limited to 'firmware/target/arm/ipod/button-1g-3g.c')
| -rw-r--r-- | firmware/target/arm/ipod/button-1g-3g.c | 62 |
1 files changed, 32 insertions, 30 deletions
diff --git a/firmware/target/arm/ipod/button-1g-3g.c b/firmware/target/arm/ipod/button-1g-3g.c index 9eec8fd823..071df3294c 100644 --- a/firmware/target/arm/ipod/button-1g-3g.c +++ b/firmware/target/arm/ipod/button-1g-3g.c @@ -55,7 +55,7 @@ static int int_btn = BUTTON_NONE; #define WHEEL_REPEAT_VELOCITY 45 /* deg/s */ #define WHEEL_SMOOTHING_VELOCITY 100 /* deg/s */ -static void handle_scroll_wheel(int new_scroll, int was_hold) +static void handle_scroll_wheel(int new_scroll) { static const signed char scroll_state[4][4] = { {0, 1, -1, 0}, @@ -64,7 +64,7 @@ static void handle_scroll_wheel(int new_scroll, int was_hold) {0, -1, 1, 0} }; - static int prev_scroll = 0; + static int prev_scroll = -1; static int direction = 0; static int count = 0; static long next_backlight_on = 0; @@ -72,30 +72,30 @@ static void handle_scroll_wheel(int new_scroll, int was_hold) static unsigned long last_wheel_usec = 0; static unsigned long wheel_delta = 1ul << 24; static unsigned long wheel_velocity = 0; + static int prev_keypost = BUTTON_NONE; int wheel_keycode = BUTTON_NONE; - int scroll = scroll_state[prev_scroll][new_scroll]; + int scroll; unsigned long usec; unsigned long v; + if (prev_scroll == -1) { + prev_scroll = new_scroll; + return; + } + + scroll = scroll_state[prev_scroll][new_scroll]; prev_scroll = new_scroll; if (direction != scroll) { - /* direction reversal - reset all */ + /* direction reversal or was hold - reset all */ direction = scroll; + prev_keypost = BUTTON_NONE; wheel_velocity = 0; wheel_delta = 1ul << 24; count = 0; } - if (was_hold) { - /* hold - reset all */ - wheel_velocity = 0; - wheel_delta = 1ul << 24; - count = 0; - return; - } - /* poke backlight every 1/4s of activity */ if (TIME_AFTER(current_tick, next_backlight_on)) { backlight_on(); @@ -160,14 +160,19 @@ static void handle_scroll_wheel(int new_scroll, int was_hold) wheel_velocity = (7*wheel_velocity + v) / 8; } - if (v >= WHEEL_REPEAT_VELOCITY) { - /* quick enough - generate repeats - use unsmoothed v to guage */ - wheel_keycode |= BUTTON_REPEAT; - } - if (queue_empty(&button_queue)) { + int key = wheel_keycode; + + if (v >= WHEEL_REPEAT_VELOCITY && prev_keypost == key) { + /* quick enough and same key is being posted more than once in a + * row - generate repeats - use unsmoothed v to guage */ + key |= BUTTON_REPEAT; + } + + prev_keypost = wheel_keycode; + /* post wheel keycode with wheel data */ - queue_post(&button_queue, wheel_keycode, + queue_post(&button_queue, key, (wheel_velocity >= WHEEL_ACCEL_START ? (1ul << 31) : 0) | wheel_delta | wheel_velocity); /* message posted - reset delta */ @@ -184,7 +189,7 @@ static void handle_scroll_wheel(int new_scroll, int was_hold) last_wheel_usec = usec; } #else -static void handle_scroll_wheel(int new_scroll, int was_hold) +static void handle_scroll_wheel(int new_scroll) { int wheel_keycode = BUTTON_NONE; static int prev_scroll = -1; @@ -204,7 +209,7 @@ static void handle_scroll_wheel(int new_scroll, int was_hold) direction = scroll_state[prev_scroll][new_scroll]; count = 0; } - else if (!was_hold) { + else { backlight_on(); reset_poweroff_timer(); if (++count == 6) { /* reduce sensitivity */ @@ -233,22 +238,24 @@ static void handle_scroll_wheel(int new_scroll, int was_hold) static int ipod_3g_button_read(void) { unsigned char source, state; - static bool was_hold = false; int btn = BUTTON_NONE; /* get source of interupts */ source = GPIOA_INT_STAT; - + /* get current keypad status */ state = GPIOA_INPUT_VAL; /* toggle interrupt level */ GPIOA_INT_LEV = ~state; + /* ack any active interrupts */ + GPIOA_INT_CLR = source; + #ifdef IPOD_3G + static bool was_hold = false; + if (was_hold && source == 0x40 && state == 0xbf) { - /* ack any active interrupts */ - GPIOA_INT_CLR = source; return BUTTON_NONE; } was_hold = false; @@ -258,13 +265,11 @@ static int ipod_3g_button_read(void) was_hold = true; /* hold switch on 3g causes all outputs to go low */ /* we shouldn't interpret these as key presses */ - GPIOA_INT_CLR = source; return BUTTON_NONE; } #elif defined IPOD_1G2G if (state & 0x20) { /* 1g/2g hold switch is active high */ - GPIOA_INT_CLR = source; return BUTTON_NONE; } #endif @@ -285,12 +290,9 @@ static int ipod_3g_button_read(void) } if (source & 0xc0) { - handle_scroll_wheel((state & 0xc0) >> 6, was_hold); + handle_scroll_wheel((state & 0xc0) >> 6); } - /* ack any active interrupts */ - GPIOA_INT_CLR = source; - return btn; } |