diff options
Diffstat (limited to 'firmware/target/sh/archos/recorder/button-recorder.c')
-rw-r--r-- | firmware/target/sh/archos/recorder/button-recorder.c | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/firmware/target/sh/archos/recorder/button-recorder.c b/firmware/target/sh/archos/recorder/button-recorder.c deleted file mode 100644 index 5e5e67487d..0000000000 --- a/firmware/target/sh/archos/recorder/button-recorder.c +++ /dev/null @@ -1,110 +0,0 @@ -/*************************************************************************** - * __________ __ ___. - * Open \______ \ ____ ____ | | _\_ |__ _______ ___ - * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / - * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < - * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ - * \/ \/ \/ \/ \/ - * $Id$ - * - * Copyright (C) 2006 by Jens Arnold - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ****************************************************************************/ - -#include "config.h" -#include "system.h" -#include "button.h" -#include "backlight.h" -#include "adc.h" - -/* - Recorder hardware button hookup - =============================== - - 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 - - ON: PB8, low active - OFF: PB4, low active -*/ - -void button_init_device(void) -{ - /* Set PB4 and PB8 as input pins */ - PBCR1 &= 0xfffc; /* PB8MD = 00 */ - PBCR2 &= 0xfcff; /* PB4MD = 00 */ - PBIOR &= ~0x0110; /* Inputs */ -} - -int button_read_device(void) -{ - int btn = BUTTON_NONE; - int data; - static int off_button_count = 0; - - /* check F1..F3 and UP */ - data = adc_read(ADC_BUTTON_ROW1); - if (data >= 250) - { - if (data >= 700) - if (data >= 900) - btn = BUTTON_F3; - else - btn = BUTTON_UP; - else - if (data >= 500) - 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 >= 250) - { - if (data >= 700) - if (data >= 900) - btn |= BUTTON_DOWN; - else - btn |= BUTTON_PLAY; - else - if (data >= 500) - btn |= BUTTON_LEFT; - else - btn |= BUTTON_RIGHT; - } - } - - /* 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; - - return btn; -} |