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rockbox/firmware/drivers/button.c
Jens Arnold 5106e228cc Since we poll buttons every tick now, the extra if() checking the polling interval was obsolete. Pointed out by Mikael Magnusson. * Some tweaks. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9536 a1c6a512-1295-4272-9138-f99709370657
2006-04-06 18:58:42 +00:00

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Daniel Stenberg
*
* iPod driver based on code from the ipodlinux project - http://ipodlinux.org
* Adapted for Rockbox in December 2005
* Original file: linux/arch/armnommu/mach-ipod/keyboard.c
* Copyright (c) 2003-2005 Bernard Leach (leachbj@bouncycastle.org)
*
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
/*
* Rockbox button functions
*/
#include <stdlib.h>
#include "config.h"
#include "cpu.h"
#include "system.h"
#include "button.h"
#include "kernel.h"
#include "backlight.h"
#include "adc.h"
#include "serial.h"
#include "power.h"
#include "system.h"
#include "powermgmt.h"
#ifdef HAVE_REMOTE_LCD
#include "lcd-remote.h"
#endif
struct event_queue button_queue;
static long lastbtn; /* Last valid button status */
static long last_read; /* Last button status, for debouncing/filtering */
#ifdef HAVE_LCD_BITMAP
static bool flipped; /* buttons can be flipped to match the LCD flip */
#endif
#ifdef CONFIG_BACKLIGHT
static bool filter_first_keypress;
#ifdef HAVE_REMOTE_LCD
static bool remote_filter_first_keypress;
#endif
#endif
/* how long until repeat kicks in, in ticks */
#define REPEAT_START 30
/* the speed repeat starts at, in ticks */
#define REPEAT_INTERVAL_START 16
/* speed repeat finishes at, in ticks */
#define REPEAT_INTERVAL_FINISH 5
/* the power-off button and number of repeated keys before shutting off */
#if (CONFIG_KEYPAD == IPOD_3G_PAD) || (CONFIG_KEYPAD == IPOD_4G_PAD) ||\
(CONFIG_KEYPAD == IRIVER_IFP7XX_PAD)
#define POWEROFF_BUTTON BUTTON_PLAY
#define POWEROFF_COUNT 40
#elif (CONFIG_KEYPAD == IAUDIO_X5_PAD)
#define POWEROFF_BUTTON BUTTON_POWER
#define POWEROFF_COUNT 10
#else
#define POWEROFF_BUTTON BUTTON_OFF
#define POWEROFF_COUNT 10
#endif
static int button_read(void);
#if (CONFIG_KEYPAD == IRIVER_H100_PAD) || (CONFIG_KEYPAD == IRIVER_H300_PAD)
static bool remote_button_hold_only(void);
#endif
#if CONFIG_KEYPAD == IPOD_4G_PAD
/* Variable to use for setting button status in interrupt handler */
int int_btn = BUTTON_NONE;
#endif
#if (CONFIG_KEYPAD == IPOD_4G_PAD) && !defined(IPOD_MINI)
static void opto_i2c_init(void)
{
int i, curr_value;
/* wait for value to settle */
i = 1000;
curr_value = (inl(0x7000c104) << 16) >> 24;
while (i > 0)
{
int new_value = (inl(0x7000c104) << 16) >> 24;
if (new_value != curr_value) {
i = 10000;
curr_value = new_value;
}
else {
i--;
}
}
GPIOB_OUTPUT_VAL |= 0x10;
DEV_EN |= 0x10000;
DEV_RS |= 0x10000;
udelay(5);
DEV_RS &= ~0x10000; /* finish reset */
outl(0xffffffff, 0x7000c120);
outl(0xffffffff, 0x7000c124);
outl(0xc00a1f00, 0x7000c100);
outl(0x1000000, 0x7000c104);
}
static inline int ipod_4g_button_read(void)
{
/* The ipodlinux source had a udelay(250) here, but testing has shown that
it is not needed - tested on Nano, Color/Photo and Video. */
/* udelay(250);*/
int btn = BUTTON_NONE;
unsigned reg = 0x7000c104;
if ((inl(0x7000c104) & 0x4000000) != 0) {
unsigned status = inl(0x7000c140);
reg = reg + 0x3C; /* 0x7000c140 */
outl(0x0, 0x7000c140); /* clear interrupt status? */
if ((status & 0x800000ff) == 0x8000001a) {
static int old_wheel_value IDATA_ATTR = -1;
static int wheel_repeat = 0;
if (status & 0x100)
btn |= BUTTON_SELECT;
if (status & 0x200)
btn |= BUTTON_RIGHT;
if (status & 0x400)
btn |= BUTTON_LEFT;
if (status & 0x800)
btn |= BUTTON_PLAY;
if (status & 0x1000)
btn |= BUTTON_MENU;
if (status & 0x40000000) {
/* NB: highest wheel = 0x5F, clockwise increases */
int new_wheel_value = (status << 9) >> 25;
backlight_on();
/* The queue should have no other events when scrolling */
if (queue_empty(&button_queue) && old_wheel_value >= 0) {
/* This is for later = BUTTON_SCROLL_TOUCH;*/
int wheel_delta = new_wheel_value - old_wheel_value;
unsigned long data;
int wheel_keycode;
if (wheel_delta < -48)
wheel_delta += 96; /* Forward wrapping case */
else if (wheel_delta > 48)
wheel_delta -= 96; /* Backward wrapping case */
if (wheel_delta > 4) {
wheel_keycode = BUTTON_SCROLL_FWD;
} else if (wheel_delta < -4) {
wheel_keycode = BUTTON_SCROLL_BACK;
} else goto wheel_end;
data = (wheel_delta << 16) | new_wheel_value;
queue_post(&button_queue, wheel_keycode | wheel_repeat,
(void *)data);
if (!wheel_repeat) wheel_repeat = BUTTON_REPEAT;
}
old_wheel_value = new_wheel_value;
} else if (old_wheel_value >= 0) {
/* scroll wheel up */
old_wheel_value = -1;
wheel_repeat = 0;
}
} else if (status == 0xffffffff) {
opto_i2c_init();
}
}
wheel_end:
if ((inl(reg) & 0x8000000) != 0) {
outl(0xffffffff, 0x7000c120);
outl(0xffffffff, 0x7000c124);
}
return btn;
}
void ipod_4g_button_int(void)
{
CPU_HI_INT_CLR = I2C_MASK;
/* The following delay was 250 in the ipodlinux source, but 50 seems to
work fine - tested on Nano, Color/Photo and Video. */
udelay(50);
outl(0x0, 0x7000c140);
int_btn = ipod_4g_button_read();
outl(inl(0x7000c104) | 0xC000000, 0x7000c104);
outl(0x400a1f00, 0x7000c100);
GPIOB_OUTPUT_VAL |= 0x10;
CPU_INT_EN = 0x40000000;
CPU_HI_INT_EN = I2C_MASK;
}
#endif
#if (CONFIG_KEYPAD == IPOD_3G_PAD) || defined(IPOD_MINI)
/* iPod 3G and mini 1G, mini 2G uses iPod 4G code */
void handle_scroll_wheel(int new_scroll, int was_hold, int reverse)
{
int wheel_keycode = BUTTON_NONE;
static int prev_scroll = -1;
static int scroll_state[4][4] = {
{0, 1, -1, 0},
{-1, 0, 0, 1},
{1, 0, 0, -1},
{0, -1, 1, 0}
};
if ( prev_scroll == -1 ) {
prev_scroll = new_scroll;
}
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;
}
}
if (wheel_keycode != BUTTON_NONE)
queue_post(&button_queue, wheel_keycode, NULL);
prev_scroll = new_scroll;
}
#endif
#if (CONFIG_KEYPAD == IPOD_4G_PAD) && defined(IPOD_MINI)
/* mini 1 only, mini 2G uses iPod 4G code */
static int ipod_mini_button_read(void)
{
unsigned char source, wheel_source, state, wheel_state;
int btn = BUTTON_NONE;
/*
* we need some delay for mini, cause hold generates several interrupts,
* some of them delayed
*/
udelay(250);
/* get source(s) of interupt */
source = GPIOA_INT_STAT & 0x3f;
wheel_source = GPIOB_INT_STAT & 0x30;
if (source == 0 && wheel_source == 0) {
return BUTTON_NONE; /* not for us */
}
/* get current keypad & wheel status */
state = GPIOA_INPUT_VAL & 0x3f;
wheel_state = GPIOB_INPUT_VAL & 0x30;
/* toggle interrupt level */
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;
if (wheel_source & 0x30) {
handle_scroll_wheel((wheel_state & 0x30) >> 4, 0, 1);
}
/* ack any active interrupts */
if (source)
GPIOA_INT_CLR = source;
if (wheel_source)
GPIOB_INT_CLR = wheel_source;
return btn;
}
void ipod_mini_button_int(void)
{
CPU_HI_INT_CLR = GPIO_MASK;
int_btn = ipod_mini_button_read();
//CPU_INT_EN = 0x40000000;
CPU_HI_INT_EN = GPIO_MASK;
}
#endif
#if CONFIG_KEYPAD == IPOD_3G_PAD
static int ipod_3g_button_read(void)
{
unsigned char source, state;
static int was_hold = 0;
int btn = BUTTON_NONE;
/*
* we need some delay for g3, cause hold generates several interrupts,
* some of them delayed
*/
udelay(250);
/* get source of interupts */
source = GPIOA_INT_STAT;
/* get current keypad status */
state = GPIOA_INPUT_VAL;
GPIOA_INT_LEV = ~state;
if (was_hold && source == 0x40 && state == 0xbf) {
/* ack any active interrupts */
GPIOA_INT_CLR = source;
return BUTTON_NONE;
}
was_hold = 0;
if ((state & 0x20) == 0) {
/* 3g hold switch is active low */
was_hold = 1;
/* 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;
}
if ((state & 0x1) == 0) {
btn |= BUTTON_RIGHT;
}
if ((state & 0x2) == 0) {
btn |= BUTTON_SELECT;
}
if ((state & 0x4) == 0) {
btn |= BUTTON_PLAY;
}
if ((state & 0x8) == 0) {
btn |= BUTTON_LEFT;
}
if ((state & 0x10) == 0) {
btn |= BUTTON_MENU;
}
if (source & 0xc0) {
handle_scroll_wheel((state & 0xc0) >> 6, was_hold, 0);
}
/* ack any active interrupts */
GPIOA_INT_CLR = source;
return btn;
}
#endif
static void button_tick(void)
{
static int count = 0;
static int repeat_speed = REPEAT_INTERVAL_START;
static int repeat_count = 0;
static bool repeat = false;
static bool post = false;
#ifdef CONFIG_BACKLIGHT
static bool skip_release = false;
#ifdef HAVE_REMOTE_LCD
static bool skip_remote_release = false;
#endif
#endif
int diff;
int btn;
#if (CONFIG_KEYPAD == PLAYER_PAD) || (CONFIG_KEYPAD == RECORDER_PAD)
/* Post events for the remote control */
btn = remote_control_rx();
if(btn)
{
queue_post(&button_queue, btn, NULL);
}
#endif
btn = button_read();
/* Find out if a key has been released */
diff = btn ^ lastbtn;
if(diff && (btn & diff) == 0)
{
#ifdef CONFIG_BACKLIGHT
#ifdef HAVE_REMOTE_LCD
if(diff & BUTTON_REMOTE)
if(!skip_remote_release)
queue_post(&button_queue, BUTTON_REL | diff, NULL);
else
skip_remote_release = false;
else
#endif
if(!skip_release)
queue_post(&button_queue, BUTTON_REL | diff, NULL);
else
skip_release = false;
#else
queue_post(&button_queue, BUTTON_REL | diff, NULL);
#endif
}
else
{
if ( btn )
{
/* normal keypress */
if ( btn != lastbtn )
{
post = true;
repeat = false;
repeat_speed = REPEAT_INTERVAL_START;
}
else /* repeat? */
{
if ( repeat )
{
if (!post)
count--;
if (count == 0) {
post = true;
/* yes we have repeat */
if (repeat_speed > REPEAT_INTERVAL_FINISH)
repeat_speed--;
count = repeat_speed;
repeat_count++;
/* Send a SYS_POWEROFF event if we have a device
which doesn't shut down easily with the OFF
key */
#ifdef HAVE_SW_POWEROFF
if ((btn == POWEROFF_BUTTON
#ifdef BUTTON_RC_STOP
|| btn == BUTTON_RC_STOP
#endif
) &&
#if defined(HAVE_CHARGING) && !defined(HAVE_POWEROFF_WHILE_CHARGING)
!charger_inserted() &&
#endif
repeat_count > POWEROFF_COUNT)
{
/* Tell the main thread that it's time to
power off */
sys_poweroff();
/* Safety net for players without hardware
poweroff */
if(repeat_count > POWEROFF_COUNT * 10)
power_off();
}
#endif
}
}
else
{
if (count++ > REPEAT_START)
{
post = true;
repeat = true;
repeat_count = 0;
/* initial repeat */
count = REPEAT_INTERVAL_START;
}
}
}
if ( post )
{
if (repeat)
{
/* Only post repeat events if the queue is empty,
* to avoid afterscroll effects. */
if (queue_empty(&button_queue))
{
queue_post(&button_queue, BUTTON_REPEAT | btn, NULL);
#ifdef CONFIG_BACKLIGHT
#ifdef HAVE_REMOTE_LCD
skip_remote_release = false;
#endif
skip_release = false;
#endif
post = false;
}
}
else
{
#ifdef CONFIG_BACKLIGHT
#ifdef HAVE_REMOTE_LCD
if (btn & BUTTON_REMOTE) {
if (!remote_filter_first_keypress || is_remote_backlight_on()
#if defined(IRIVER_H100_SERIES) || defined(IRIVER_H300_SERIES)
|| (remote_type()==REMOTETYPE_H300_NONLCD)
#endif
)
queue_post(&button_queue, btn, NULL);
else
skip_remote_release = true;
}
else
#endif
if (!filter_first_keypress || is_backlight_on())
queue_post(&button_queue, btn, NULL);
else
skip_release = true;
#else /* no backlight, nothing to skip */
queue_post(&button_queue, btn, NULL);
#endif
post = false;
}
#ifdef HAVE_REMOTE_LCD
if(btn & BUTTON_REMOTE)
remote_backlight_on();
else
#endif
backlight_on();
reset_poweroff_timer();
}
}
else
{
repeat = false;
count = 0;
}
}
lastbtn = btn & ~(BUTTON_REL | BUTTON_REPEAT);
}
long button_get(bool block)
{
struct event ev;
if ( block || !queue_empty(&button_queue) )
{
queue_wait(&button_queue, &ev);
return ev.id;
}
return BUTTON_NONE;
}
long button_get_w_tmo(int ticks)
{
struct event ev;
queue_wait_w_tmo(&button_queue, &ev, ticks);
return (ev.id != SYS_TIMEOUT)? ev.id: BUTTON_NONE;
}
void button_init(void)
{
/* hardware inits */
#if CONFIG_KEYPAD == IRIVER_H100_PAD
/* Set GPIO33, GPIO37, GPIO38 and GPIO52 as general purpose inputs */
GPIO1_FUNCTION |= 0x00100062;
GPIO1_ENABLE &= ~0x00100060;
#elif CONFIG_KEYPAD == IRIVER_H300_PAD
/* Set GPIO9 and GPIO15 as general purpose inputs */
GPIO_ENABLE &= ~0x00008200;
GPIO_FUNCTION |= 0x00008200;
/* Set GPIO33, GPIO37, GPIO38 and GPIO52 as general purpose inputs */
GPIO1_ENABLE &= ~0x00100060;
GPIO1_FUNCTION |= 0x00100062;
#elif CONFIG_KEYPAD == IAUDIO_X5_PAD
/* Power, Remote Play & Hold switch */
GPIO_FUNCTION |= 0x0e000000;
GPIO_ENABLE &= ~0x0e000000;
#elif CONFIG_KEYPAD == RECORDER_PAD
/* Set PB4 and PB8 as input pins */
PBCR1 &= 0xfffc; /* PB8MD = 00 */
PBCR2 &= 0xfcff; /* PB4MD = 00 */
PBIOR &= ~0x0110; /* Inputs */
#elif CONFIG_KEYPAD == PLAYER_PAD
/* set PA5 and PA11 as input pins */
PACR1 &= 0xff3f; /* PA11MD = 00 */
PACR2 &= 0xfbff; /* PA5MD = 0 */
PAIOR &= ~0x0820; /* Inputs */
#elif CONFIG_KEYPAD == ONDIO_PAD
/* nothing to initialize here */
#elif CONFIG_KEYPAD == GMINI100_PAD
/* nothing to initialize here */
#elif (CONFIG_KEYPAD == IPOD_4G_PAD) && !defined(IPOD_MINI)
opto_i2c_init();
/* hold button - enable as input */
GPIOA_ENABLE |= 0x20;
GPIOA_OUTPUT_EN &= ~0x20;
/* hold button - set interrupt levels */
GPIOA_INT_LEV = ~(GPIOA_INPUT_VAL & 0x20);
GPIOA_INT_CLR = GPIOA_INT_STAT & 0x20;
/* enable interrupts */
GPIOA_INT_EN = 0x20;
/* unmask interrupt */
CPU_INT_EN = 0x40000000;
CPU_HI_INT_EN = I2C_MASK;
#elif (CONFIG_KEYPAD == IPOD_4G_PAD) && defined(IPOD_MINI)
/* iPod Mini G1 */
/* buttons - enable as input */
GPIOA_ENABLE |= 0x3f;
GPIOA_OUTPUT_EN &= ~0x3f;
/* scroll wheel- enable as input */
GPIOB_ENABLE |= 0x30; /* port b 4,5 */
GPIOB_OUTPUT_EN &= ~0x30; /* port b 4,5 */
/* buttons - set interrupt levels */
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;
/* enable interrupts */
GPIOA_INT_EN = 0x3f;
GPIOB_INT_EN = 0x30;
/* unmask interrupt */
CPU_INT_EN = 0x40000000;
CPU_HI_INT_EN = GPIO_MASK;
#elif CONFIG_KEYPAD == IPOD_3G_PAD
GPIOA_INT_LEV = ~GPIOA_INPUT_VAL;
GPIOA_INT_CLR = GPIOA_INT_STAT;
GPIOA_INT_EN = 0xff;
#endif /* CONFIG_KEYPAD */
queue_init(&button_queue);
button_read();
lastbtn = button_read();
tick_add_task(button_tick);
reset_poweroff_timer();
#ifdef HAVE_LCD_BITMAP
flipped = false;
#endif
#ifdef CONFIG_BACKLIGHT
filter_first_keypress = false;
#ifdef HAVE_REMOTE_LCD
remote_filter_first_keypress = false;
#endif
#endif
}
#ifdef HAVE_LCD_BITMAP /* only bitmap displays can be flipped */
/*
* helper function to swap LEFT/RIGHT, UP/DOWN (if present), and F1/F3 (Recorder)
*/
static int button_flip(int button)
{
int newbutton;
newbutton = button &
~(BUTTON_LEFT | BUTTON_RIGHT
#if defined(BUTTON_UP) && defined(BUTTON_DOWN)
| BUTTON_UP | BUTTON_DOWN
#endif
#if CONFIG_KEYPAD == RECORDER_PAD
| BUTTON_F1 | BUTTON_F3
#endif
);
if (button & BUTTON_LEFT)
newbutton |= BUTTON_RIGHT;
if (button & BUTTON_RIGHT)
newbutton |= BUTTON_LEFT;
#if defined(BUTTON_UP) && defined(BUTTON_DOWN)
if (button & BUTTON_UP)
newbutton |= BUTTON_DOWN;
if (button & BUTTON_DOWN)
newbutton |= BUTTON_UP;
#endif
#if CONFIG_KEYPAD == RECORDER_PAD
if (button & BUTTON_F1)
newbutton |= BUTTON_F3;
if (button & BUTTON_F3)
newbutton |= BUTTON_F1;
#endif
return newbutton;
}
/*
* set the flip attribute
* better only call this when the queue is empty
*/
void button_set_flip(bool flip)
{
if (flip != flipped) /* not the current setting */
{
/* avoid race condition with the button_tick() */
int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
lastbtn = button_flip(lastbtn);
flipped = flip;
set_irq_level(oldlevel);
}
}
#endif /* HAVE_LCD_BITMAP */
#ifdef CONFIG_BACKLIGHT
void set_backlight_filter_keypress(bool value)
{
filter_first_keypress = value;
}
#ifdef HAVE_REMOTE_LCD
void set_remote_backlight_filter_keypress(bool value)
{
remote_filter_first_keypress = value;
}
#endif
#endif
/*
Archos hardware button hookup
=============================
Recorder / Recorder FM/V2
-------------------------
F1, F2, F3, UP: connected to AN4 through a resistor network
DOWN, PLAY, LEFT, RIGHT: likewise connected to AN5
The voltage on AN4/ AN5 depends on which keys (or key combo) is pressed
FM/V2 has PLAY and RIGHT switched compared to plain recorder
ON: PB8, low active (plain recorder) / AN3, low active (fm/v2)
OFF: PB4, low active (plain recorder) / AN2, high active (fm/v2)
Player
------
LEFT: AN0
MENU: AN1
RIGHT: AN2
PLAY: AN3
STOP: PA11
ON: PA5
All buttons are low active
Ondio
-----
LEFT, RIGHT, UP, DOWN: connected to AN4 through a resistor network
The voltage on AN4 depends on which keys (or key combo) is pressed
OPTION: AN2, high active (assigned as MENU)
ON/OFF: AN3, low active (assigned as OFF)
*/
#if CONFIG_KEYPAD == RECORDER_PAD
#ifdef HAVE_FMADC
/* FM Recorder super-special levels */
#define LEVEL1 150
#define LEVEL2 385
#define LEVEL3 545
#define LEVEL4 700
#define ROW2_BUTTON1 BUTTON_PLAY
#define ROW2_BUTTON3 BUTTON_RIGHT
#else
/* plain bog standard Recorder levels */
#define LEVEL1 250
#define LEVEL2 500
#define LEVEL3 700
#define LEVEL4 900
#define ROW2_BUTTON1 BUTTON_RIGHT
#define ROW2_BUTTON3 BUTTON_PLAY
#endif /* HAVE_FMADC */
#elif CONFIG_KEYPAD == ONDIO_PAD
/* Ondio levels */
#define LEVEL1 165
#define LEVEL2 415
#define LEVEL3 585
#define LEVEL4 755
#endif /* CONFIG_KEYPAD */
/*
* Get button pressed from hardware
*/
static int button_read(void)
{
int btn = BUTTON_NONE;
int retval;
int data;
#if (CONFIG_KEYPAD == IRIVER_H100_PAD) || (CONFIG_KEYPAD == IRIVER_H300_PAD)
static bool hold_button = false;
static bool remote_hold_button = false;
static int last_button_val= 0xff;
/* light handling */
if (hold_button && !button_hold())
{
backlight_on();
}
if (remote_hold_button && !remote_button_hold_only())
{
remote_backlight_on();
}
hold_button = button_hold();
remote_hold_button = remote_button_hold_only();
/* normal buttons */
if (!hold_button)
{
data = adc_scan(ADC_BUTTONS);
#if CONFIG_KEYPAD == IRIVER_H100_PAD
if ((data < 0xf0) && ((unsigned)(data - last_button_val + 1) <= 2))
{
if (data < 0x80)
if (data < 0x30)
if (data < 0x18)
btn = BUTTON_SELECT;
else
btn = BUTTON_UP;
else
if (data < 0x50)
btn = BUTTON_LEFT;
else
btn = BUTTON_DOWN;
else
if (data < 0xb0)
if (data < 0xa0)
btn = BUTTON_RIGHT;
else
btn = BUTTON_OFF;
else
if (data < 0xd0)
btn = BUTTON_MODE;
else
btn = BUTTON_REC;
}
#else /* H300 */
if ((data < 0xba) && ((unsigned)(data - last_button_val + 1) <= 2))
{
if (data < 0x54)
if (data < 0x30)
if (data < 0x10)
btn = BUTTON_SELECT;
else
btn = BUTTON_UP;
else
btn = BUTTON_LEFT;
else
if (data < 0x98)
if (data < 0x76)
btn = BUTTON_DOWN;
else
btn = BUTTON_RIGHT;
else
btn = BUTTON_OFF;
}
#endif
last_button_val = data;
}
/* remote buttons */
if (!remote_hold_button)
{
data = adc_scan(ADC_REMOTE);
switch (remote_type())
{
case REMOTETYPE_H100_LCD:
if (data < 0xf5)
{
if (data < 0x73)
if (data < 0x3f)
if (data < 0x25)
if(data < 0x0c)
btn |= BUTTON_RC_STOP;
else
btn |= BUTTON_RC_VOL_DOWN;
else
btn |= BUTTON_RC_MODE;
else
if (data < 0x5a)
btn |= BUTTON_RC_VOL_UP;
else
btn |= BUTTON_RC_BITRATE;
else
if (data < 0xa8)
if (data < 0x8c)
btn |= BUTTON_RC_REC;
else
btn |= BUTTON_RC_SOURCE;
else
if (data < 0xdf)
if(data < 0xc5)
btn |= BUTTON_RC_FF;
else
btn |= BUTTON_RC_MENU;
else
btn |= BUTTON_RC_REW;
}
break;
case REMOTETYPE_H300_LCD:
if (data < 0xf5)
{
if (data < 0x73)
if (data < 0x42)
if (data < 0x27)
if(data < 0x0c)
btn |= BUTTON_RC_VOL_DOWN;
else
btn |= BUTTON_RC_FF;
else
btn |= BUTTON_RC_STOP;
else
if (data < 0x5b)
btn |= BUTTON_RC_MODE;
else
btn |= BUTTON_RC_REC;
else
if (data < 0xab)
if (data < 0x8e)
btn |= BUTTON_RC_ON;
else
btn |= BUTTON_RC_BITRATE;
else
if (data < 0xde)
if(data < 0xc5)
btn |= BUTTON_RC_SOURCE;
else
btn |= BUTTON_RC_VOL_UP;
else
btn |= BUTTON_RC_REW;
}
break;
case REMOTETYPE_H300_NONLCD:
if (data < 0xf1)
{
if (data < 0x7d)
if (data < 0x25)
btn |= BUTTON_RC_FF;
else
btn |= BUTTON_RC_REW;
else
if (data < 0xd5)
btn |= BUTTON_RC_VOL_DOWN;
else
btn |= BUTTON_RC_VOL_UP;
}
break;
}
}
/* special buttons */
#if CONFIG_KEYPAD == IRIVER_H300_PAD
if (!hold_button)
{
data = GPIO_READ;
if ((data & 0x0200) == 0)
btn |= BUTTON_MODE;
if ((data & 0x8000) == 0)
btn |= BUTTON_REC;
}
#endif
data = GPIO1_READ;
if (!hold_button && ((data & 0x20) == 0))
btn |= BUTTON_ON;
if (!remote_hold_button && ((data & 0x40) == 0))
switch(remote_type())
{
case REMOTETYPE_H100_LCD:
case REMOTETYPE_H300_NONLCD:
btn |= BUTTON_RC_ON;
break;
case REMOTETYPE_H300_LCD:
btn |= BUTTON_RC_MENU;
break;
}
#elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD
static bool hold_button = false;
/* light handling */
if (hold_button && !button_hold())
{
backlight_on();
}
hold_button = button_hold();
/* normal buttons */
if (!button_hold())
{
data = adc_read(ADC_BUTTONS);
if (data < 0x35c)
{
if (data < 0x151)
if (data < 0xc7)
if (data < 0x41)
btn = BUTTON_LEFT;
else
btn = BUTTON_RIGHT;
else
btn = BUTTON_SELECT;
else
if (data < 0x268)
if (data < 0x1d7)
btn = BUTTON_UP;
else
btn = BUTTON_DOWN;
else
if (data < 0x2f9)
btn = BUTTON_EQ;
else
btn = BUTTON_MODE;
}
if (adc_read(ADC_BUTTON_PLAY) < 0x64)
btn |= BUTTON_PLAY;
}
#elif CONFIG_KEYPAD == RECORDER_PAD
#ifndef HAVE_FMADC
static int off_button_count = 0;
#endif
/* check F1..F3 and UP */
data = adc_read(ADC_BUTTON_ROW1);
if (data >= LEVEL1)
{
if (data >= LEVEL3)
if (data >= LEVEL4)
btn = BUTTON_F3;
else
btn = BUTTON_UP;
else
if (data >= LEVEL2)
btn = BUTTON_F2;
else
btn = BUTTON_F1;
}
/* Some units have mushy keypads, so pressing UP also activates
the Left/Right buttons. Let's combat that by skipping the AN5
checks when UP is pressed. */
if(!(btn & BUTTON_UP))
{
/* check DOWN, PLAY, LEFT, RIGHT */
data = adc_read(ADC_BUTTON_ROW2);
if (data >= LEVEL1)
{
if (data >= LEVEL3)
if (data >= LEVEL4)
btn |= BUTTON_DOWN;
else
btn |= ROW2_BUTTON3;
else
if (data >= LEVEL2)
btn |= BUTTON_LEFT;
else
btn |= ROW2_BUTTON1;
}
}
#ifdef HAVE_FMADC
if ( adc_read(ADC_BUTTON_ON) < 512 )
btn |= BUTTON_ON;
if ( adc_read(ADC_BUTTON_OFF) > 512 )
btn |= BUTTON_OFF;
#else
/* check port B pins for ON and OFF */
data = PBDR;
if ((data & 0x0100) == 0)
btn |= BUTTON_ON;
if ((data & 0x0010) == 0)
{
/* When the batteries are low, the low-battery shutdown logic causes
* spurious OFF events due to voltage fluctuation on some units.
* Only accept OFF when read several times in sequence. */
if (++off_button_count > 3)
btn |= BUTTON_OFF;
}
else
off_button_count = 0;
#endif
#elif CONFIG_KEYPAD == PLAYER_PAD
/* buttons are active low */
if (adc_read(0) < 0x180)
btn = BUTTON_LEFT;
if (adc_read(1) < 0x180)
btn |= BUTTON_MENU;
if(adc_read(2) < 0x180)
btn |= BUTTON_RIGHT;
if(adc_read(3) < 0x180)
btn |= BUTTON_PLAY;
/* check port A pins for ON and STOP */
data = PADR;
if ( !(data & 0x0020) )
btn |= BUTTON_ON;
if ( !(data & 0x0800) )
btn |= BUTTON_STOP;
#elif CONFIG_KEYPAD == ONDIO_PAD
/* Check the 4 direction keys */
data = adc_read(ADC_BUTTON_ROW1);
if (data >= LEVEL1)
{
if (data >= LEVEL3)
if (data >= LEVEL4)
btn = BUTTON_LEFT;
else
btn = BUTTON_RIGHT;
else
if (data >= LEVEL2)
btn = BUTTON_UP;
else
btn = BUTTON_DOWN;
}
if(adc_read(ADC_BUTTON_OPTION) > 0x200) /* active high */
btn |= BUTTON_MENU;
if(adc_read(ADC_BUTTON_ONOFF) < 0x120) /* active low */
btn |= BUTTON_OFF;
#elif CONFIG_KEYPAD == GMINI100_PAD
data = adc_read(7);
if (data < 0x38a)
{
if (data < 0x1c5)
if (data < 0xe3)
btn = BUTTON_LEFT;
else
btn = BUTTON_DOWN;
else
if (data < 0x2a2)
btn = BUTTON_RIGHT;
else
btn = BUTTON_UP;
}
data = adc_read(6);
if (data < 0x355)
{
if (data < 0x288)
if (data < 0x233)
btn |= BUTTON_OFF;
else
btn |= BUTTON_PLAY;
else
btn |= BUTTON_MENU;
}
data = P7;
if (data & 0x01)
btn |= BUTTON_ON;
#elif (CONFIG_KEYPAD == IPOD_4G_PAD)
(void)data;
/* The int_btn variable is set in the button interrupt handler */
btn = int_btn;
#elif (CONFIG_KEYPAD == IPOD_3G_PAD)
(void)data;
btn = ipod_3g_button_read();
#elif (CONFIG_KEYPAD == IAUDIO_X5_PAD)
static bool hold_button = false;
static bool remote_hold_button = false;
hold_button = button_hold();
remote_hold_button = remote_button_hold();
/* normal buttons */
if (!hold_button)
{
data = adc_scan(ADC_BUTTONS);
if (data < 0xf0)
{
if(data < 0x7c)
if(data < 0x42)
btn = BUTTON_LEFT;
else
if(data < 0x62)
btn = BUTTON_RIGHT;
else
btn = BUTTON_SELECT;
else
if(data < 0xb6)
if(data < 0x98)
btn = BUTTON_REC;
else
btn = BUTTON_PLAY;
else
if(data < 0xd3)
btn = BUTTON_DOWN;
else
btn = BUTTON_UP;
}
}
/* remote buttons */
data = adc_scan(ADC_REMOTE);
if(data < 0x17)
remote_hold_button = true;
if(!remote_hold_button)
{
if (data < 0xee)
{
if(data < 0x7a)
if(data < 0x41)
btn |= BUTTON_RC_REW;
else
if(data < 0x61)
btn |= BUTTON_RC_FF;
else
btn |= BUTTON_RC_MODE;
else
if(data < 0xb4)
if(data < 0x96)
btn |= BUTTON_RC_REC;
else
btn |= BUTTON_RC_MENU;
else
if(data < 0xd1)
btn |= BUTTON_RC_VOL_UP;
else
btn |= BUTTON_RC_VOL_DOWN;
}
}
data = GPIO_READ;
if (!(data & 0x04000000))
btn |= BUTTON_POWER;
if (!(data & 0x02000000))
btn |= BUTTON_RC_PLAY;
#endif /* CONFIG_KEYPAD */
#ifdef HAVE_LCD_BITMAP
if (btn && flipped)
btn = button_flip(btn); /* swap upside down */
#endif
/* Filter the button status. It is only accepted if we get the same
status twice in a row. */
if (btn != last_read)
retval = lastbtn;
else
retval = btn;
last_read = btn;
return retval;
}
#if (CONFIG_KEYPAD == IPOD_4G_PAD) || (CONFIG_KEYPAD == IPOD_3G_PAD)
bool button_hold(void)
{
return (GPIOA_INPUT_VAL & 0x20)?false:true;
}
#endif
#if (CONFIG_KEYPAD == IRIVER_H100_PAD) || (CONFIG_KEYPAD == IRIVER_H300_PAD)
bool button_hold(void)
{
return (GPIO1_READ & 0x00000002)?true:false;
}
static bool remote_button_hold_only(void)
{
if(remote_type() == REMOTETYPE_H300_NONLCD)
return adc_scan(ADC_REMOTE)<0x0d; /* hold should be 0x00 */
else
return (GPIO1_READ & 0x00100000)?true:false;
}
/* returns true only if there is remote present */
bool remote_button_hold(void)
{
/* H300's NON-LCD remote doesn't set the "remote present" bit */
if(remote_type() == REMOTETYPE_H300_NONLCD)
return remote_button_hold_only();
else
return ((GPIO_READ & 0x40000000) == 0)?remote_button_hold_only():false;
}
#endif
#if CONFIG_KEYPAD == IRIVER_IFP7XX_PAD
bool button_hold(void)
{
return (GPIO5_READ & 4) ? false : true;
}
#endif
#if (CONFIG_KEYPAD == IAUDIO_X5_PAD)
bool button_hold(void)
{
return (GPIO_READ & 0x08000000)?false:true;
}
bool remote_button_hold(void)
{
return false; /* TODO X5 */
}
#endif
int button_status(void)
{
return lastbtn;
}
void button_clear_queue(void)
{
queue_clear(&button_queue);
}
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