devs/foxbox
1
0
Fork 0
forked from len0rd/rockbox
Code Pull requests Activity

Fuzev2: Preliminary button support. Scrollwheel does not work yet.

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25392 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thomas Martitz 2010-03-29 23:03:06 +00:00
parent a4c6870559
commit 71393c701c
1 changed files with 92 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

92
firmware/target/arm/as3525/sansa-fuzev2/button-fuzev2.c
View file

@ -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)
{
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