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hm60x/hm801: Add hold button support.

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Change-Id: I05557ecfbf0bd821d8966862a38f7f22656b36ef
This commit is contained in:
Andrew Ryabinin 2012-12-29 00:19:23 +04:00
parent 362ade3892
commit 97250a0156
4 changed files with 55 additions and 1 deletions
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27
firmware/target/arm/rk27xx/hm801/button-hm801.c
View file

@ -23,6 +23,7 @@
#include "system.h"
#include "button.h"
#include "adc.h"
#include "backlight.h"
enum keyboard_type_t {
KEYBOARD_V1,
@ -34,6 +35,12 @@ static enum keyboard_type_t kbd_type;
void button_init_device(void) {
/* setup button gpio as input */
GPIO_PCCON &= ~(POWEROFF_BUTTON);
GPIO_PACON &= ~1;
/* setup button gpio as pulldown */
SCU_GPIOUPCON |= (1<<17) |
1 ;
/* identify keyboard type */
SCU_IOMUXB_CON &= ~(1<<2);
@ -45,6 +52,10 @@ void button_init_device(void) {
}
}
bool button_hold() {
return (GPIO_PADR & 1);
}
static int button_read_device_v1(void) {
int adc_val = adc_read(ADC_BUTTONS);
int button = 0;
@ -125,7 +136,21 @@ static int button_read_device_v2(void) {
}
int button_read_device(void) {
if (kbd_type == KEYBOARD_V1) {
static bool hold_button = false;
bool hold_button_old;
hold_button_old = hold_button;
hold_button = button_hold();
#ifndef BOOTLOADER
if (hold_button != hold_button_old) {
backlight_hold_changed(hold_button);
}
#endif
if (hold_button) {
return 0;
} else if (kbd_type == KEYBOARD_V1) {
return button_read_device_v1();
} else {
return button_read_device_v2();

2
firmware/target/arm/rk27xx/hm801/button-target.h
View file

@ -21,6 +21,8 @@
#ifndef _BUTTON_TARGET_H_
#define _BUTTON_TARGET_H_
#define HAS_BUTTON_HOLD
#define BUTTON_UP 0x00000001
#define BUTTON_POWER 0x00000002
#define BUTTON_DOWN 0x00000004