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Fix button driver for ipod mini 1G.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9732 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Frank Dischner 2006-04-19 18:06:56 +00:00
parent 1903fab9c5
commit 5d9eccd85b
2 changed files with 64 additions and 46 deletions
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8
bootloader/ipod.c
View file

@ -103,7 +103,7 @@ static void memmove16(void *dest, const void *src, unsigned count)
}
}
#if CONFIG_KEYPAD == IPOD_4G_PAD
#if CONFIG_KEYPAD == IPOD_4G_PAD && !defined(IPOD_MINI)
/* check if number of seconds has past */
int timer_check(int clock_start, unsigned int usecs)
{
@ -195,13 +195,17 @@ static int key_pressed(void)
#if CONFIG_KEYPAD == IPOD_4G_PAD
#ifdef IPOD_MINI /* mini 1G only */
state = GPIOA_INPUT_VAL & 0x3f;
if ((state & 0x10) == 0) return BUTTON_LEFT;
if ((state & 0x2) == 0) return BUTTON_MENU;
if ((state & 0x4) == 0) return BUTTON_PLAY;
if ((state & 0x8) == 0) return BUTTON_RIGHT;
#else
state = opto_keypad_read();
#endif
if ((state & 0x4) == 0) return BUTTON_LEFT;
if ((state & 0x10) == 0) return BUTTON_MENU;
if ((state & 0x8) == 0) return BUTTON_PLAY;
if ((state & 0x2) == 0) return BUTTON_RIGHT;
#endif
#elif CONFIG_KEYPAD == IPOD_3G_PAD
state = inb(0xcf000030);
if (((state & 0x20) == 0)) return BUTTON_HOLD; /* hold on */

102
firmware/drivers/button.c
View file

@ -225,6 +225,8 @@ void handle_scroll_wheel(int new_scroll, int was_hold, int reverse)
{
int wheel_keycode = BUTTON_NONE;
static int prev_scroll = -1;
static int direction = 0;
static int count = 0;
static int scroll_state[4][4] = {
{0, 1, -1, 0},
{-1, 0, 0, 1},
@ -235,32 +237,39 @@ void handle_scroll_wheel(int new_scroll, int was_hold, int reverse)
if ( prev_scroll == -1 ) {
prev_scroll = new_scroll;
}
else if (direction != scroll_state[prev_scroll][new_scroll]) {
direction = scroll_state[prev_scroll][new_scroll];
count = 0;
}
else if (!was_hold) {
switch (scroll_state[prev_scroll][new_scroll]) {
case 1:
if (reverse) {
/* 'r' keypress */
wheel_keycode = BUTTON_SCROLL_FWD;
}
else {
/* 'l' keypress */
wheel_keycode = BUTTON_SCROLL_BACK;
}
break;
case -1:
if (reverse) {
/* 'l' keypress */
wheel_keycode = BUTTON_SCROLL_BACK;
}
else {
/* 'r' keypress */
wheel_keycode = BUTTON_SCROLL_FWD;
}
break;
default:
/* only happens if we get out of sync */
break;
backlight_on();
if (++count == 6) { /* reduce sensitivity */
count = 0;
switch (direction) {
case 1:
if (reverse) {
/* 'r' keypress */
wheel_keycode = BUTTON_SCROLL_FWD;
}
else {
/* 'l' keypress */
wheel_keycode = BUTTON_SCROLL_BACK;
}
break;
case -1:
if (reverse) {
/* 'l' keypress */
wheel_keycode = BUTTON_SCROLL_BACK;
}
else {
/* 'r' keypress */
wheel_keycode = BUTTON_SCROLL_FWD;
}
break;
default:
/* only happens if we get out of sync */
break;
}
}
}
if (wheel_keycode != BUTTON_NONE)
@ -273,13 +282,12 @@ void handle_scroll_wheel(int new_scroll, int was_hold, int reverse)
static int ipod_mini_button_read(void)
{
unsigned char source, wheel_source, state, wheel_state;
static bool was_hold = false;
int btn = BUTTON_NONE;
/*
* we need some delay for mini, cause hold generates several interrupts,
* some of them delayed
*/
udelay(250);
/* The ipodlinux source had a udelay(250) here, but testing has shown that
it is not needed - tested on mini 1g. */
/* udelay(250);*/
/* get source(s) of interupt */
source = GPIOA_INT_STAT & 0x3f;
@ -297,21 +305,27 @@ static int ipod_mini_button_read(void)
GPIOA_INT_LEV = ~state;
GPIOB_INT_LEV = ~wheel_state;
if (source & 0x1)
btn |= BUTTON_SELECT;
if (source & 0x2)
btn |= BUTTON_MENU;
if (source & 0x4)
btn |= BUTTON_PLAY;
if (source & 0x8)
btn |= BUTTON_RIGHT;
if (source & 0x10)
btn |= BUTTON_LEFT;
/* hold switch causes all outputs to go low */
/* we shouldn't interpret these as key presses */
if ((state & 0x20)) {
if (!(state & 0x1))
btn |= BUTTON_SELECT;
if (!(state & 0x2))
btn |= BUTTON_MENU;
if (!(state & 0x4))
btn |= BUTTON_PLAY;
if (!(state & 0x8))
btn |= BUTTON_RIGHT;
if (!(state & 0x10))
btn |= BUTTON_LEFT;
if (wheel_source & 0x30) {
handle_scroll_wheel((wheel_state & 0x30) >> 4, 0, 1);
if (wheel_source & 0x30) {
handle_scroll_wheel((wheel_state & 0x30) >> 4, was_hold, 1);
}
}
was_hold = button_hold();
/* ack any active interrupts */
if (source)
GPIOA_INT_CLR = source;
@ -645,8 +659,8 @@ void button_init(void)
GPIOA_INT_LEV = ~(GPIOA_INPUT_VAL & 0x3f);
GPIOA_INT_CLR = GPIOA_INT_STAT & 0x3f;
/* scroll wheel - set interrupt levels */
GPIOB_INT_LEV = ~(GPIOB_INPUT_VAL & 0x3f);
GPIOB_INT_CLR = GPIOB_INT_STAT & 0x3f;
GPIOB_INT_LEV = ~(GPIOB_INPUT_VAL & 0x30);
GPIOB_INT_CLR = GPIOB_INT_STAT & 0x30;
/* enable interrupts */
GPIOA_INT_EN = 0x3f;
GPIOB_INT_EN = 0x30;