2b81bce27c
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19035 a1c6a512-1295-4272-9138-f99709370657
142 lines
3.8 KiB
C
142 lines
3.8 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2006 by Barry Wardell
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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/* Taken from button-h10.c by Barry Wardell and reverse engineering by MrH. */
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#include "system.h"
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#include "button.h"
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#include "backlight.h"
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#include "powermgmt.h"
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#define WHEEL_REPEAT_INTERVAL 300000
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#define WHEEL_FAST_ON_INTERVAL 20000
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#define WHEEL_FAST_OFF_INTERVAL 60000
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#define WHEELCLICKS_PER_ROTATION 48 /* wheelclicks per full rotation */
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/* Clickwheel */
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#ifndef BOOTLOADER
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static unsigned int old_wheel_value = 0;
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static unsigned int wheel_repeat = BUTTON_NONE;
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static unsigned int wheel_click_count = 0;
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static unsigned int wheel_delta = 0;
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static int wheel_fast_mode = 0;
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static unsigned long last_wheel_usec = 0;
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static unsigned long wheel_velocity = 0;
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static long last_wheel_post = 0;
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static long next_backlight_on = 0;
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/* Buttons */
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static bool hold_button = false;
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static bool hold_button_old = false;
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#define _button_hold() hold_button
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#else
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#define _button_hold() false /* FIXME */
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#endif /* BOOTLOADER */
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static int int_btn = BUTTON_NONE;
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void button_init_device(void)
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{
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}
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bool button_hold(void)
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{
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return _button_hold();
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}
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/* clickwheel */
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#ifndef BOOTLOADER
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void clickwheel_int(void)
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{
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}
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#endif /* BOOTLOADER */
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/* device buttons */
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void button_int(void)
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{
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int dir_save_b = 0;
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int afsel_save_b = 0;
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int dir_save_c = 0;
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int afsel_save_c = 0;
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int_btn = BUTTON_NONE;
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/* Save the current direction and afsel */
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dir_save_b = GPIOB_DIR;
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afsel_save_b = GPIOB_AFSEL;
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dir_save_c = GPIOC_DIR;
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afsel_save_c = GPIOC_AFSEL;
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GPIOB_DIR = 0;
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GPIOB_AFSEL = 0;
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GPIOC_DIR = 0;
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GPIOC_AFSEL = 0;
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/* These should not be needed with button event interupts */
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/* they are necessary now to clear out lcd data */
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GPIOC_PIN(0) |= 1;
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GPIOC_PIN(1) |= 1;
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GPIOC_PIN(2) |= 1;
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GPIOC_PIN(3) |= 1;
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GPIOC_PIN(4) |= 1;
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GPIOC_PIN(5) |= 1;
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GPIOC_PIN(6) |= 1;
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GPIOC_PIN(7) |= 1;
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/* direct GPIO connections */
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if (GPIOB_PIN(4))
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int_btn |= BUTTON_POWER;
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if (!GPIOC_PIN(6))
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int_btn |= BUTTON_DOWN;
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if (!GPIOC_PIN(5))
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int_btn |= BUTTON_RIGHT;
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if (!GPIOC_PIN(4))
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int_btn |= BUTTON_SELECT;
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if (!GPIOC_PIN(3))
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int_btn |= BUTTON_LEFT;
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if (!GPIOC_PIN(2))
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int_btn |= BUTTON_UP;
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/* return to settings needed for lcd */
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GPIOB_DIR = dir_save_b;
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GPIOB_AFSEL = afsel_save_b;
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GPIOC_DIR = dir_save_c;
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GPIOC_AFSEL = afsel_save_c;
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}
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/*
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* Get button pressed from hardware
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*/
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int button_read_device(void)
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{
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#ifdef BOOTLOADER
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/* Read buttons directly in the bootloader */
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button_int();
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#else
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/* light handling */
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if (hold_button != hold_button_old)
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{
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hold_button_old = hold_button;
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backlight_hold_changed(hold_button);
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}
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#endif /* BOOTLOADER */
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/* The int_btn variable is set in the button interrupt handler */
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return int_btn;
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}
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