forked from len0rd/rockbox
Moved driver to 'drivers' subdir
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@189 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Björn Stenberg
parent
34f9482912
commit
c6773e1436
16 changed files with 0 additions and 0 deletions
|
|
@ -1,197 +0,0 @@
|
|||
/***************************************************************************
|
||||
* __________ __ ___.
|
||||
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
||||
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
||||
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
||||
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
||||
* \/ \/ \/ \/ \/
|
||||
* $Id$
|
||||
*
|
||||
* Copyright (C) 2002 by Daniel Stenberg
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
****************************************************************************/
|
||||
/*
|
||||
* Archos Jukebox Recorder button functions
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
#include "sh7034.h"
|
||||
#include "button.h"
|
||||
|
||||
#ifdef HAVE_RECORDER_KEYPAD
|
||||
|
||||
/* AJBR buttons are connected to the CPU as follows:
|
||||
*
|
||||
* ON and OFF are connected to separate port B input pins.
|
||||
*
|
||||
* F1, F2, F3, and UP are connected to the AN4 analog input, each through
|
||||
* a separate voltage divider. The voltage on AN4 depends on which button
|
||||
* (or none, or a combination) is pressed.
|
||||
*
|
||||
* DOWN, PLAY, LEFT, and RIGHT are likewise connected to AN5. */
|
||||
|
||||
/* Button voltage levels on AN4 and AN5 */
|
||||
#define LEVEL1 50
|
||||
#define LEVEL2 125
|
||||
#define LEVEL3 175
|
||||
#define LEVEL4 225
|
||||
|
||||
/* Number of calls to get_button for a button to stop bouncing
|
||||
* and to be considered held down.
|
||||
* Should really use a hardware timer for this.
|
||||
*/
|
||||
#define BOUNCE_COUNT 200
|
||||
#define HOLD_COUNT 10000
|
||||
|
||||
static int last; /* Last button pressed */
|
||||
static int count; /* Number of calls button has been down */
|
||||
|
||||
|
||||
/*
|
||||
*Initialize buttons
|
||||
*/
|
||||
void button_init()
|
||||
{
|
||||
#ifndef SIMULATOR
|
||||
/* Set PB4 and PB8 as input pins */
|
||||
PBCR1 &= 0xfffc; /* PB8MD = 00 */
|
||||
PBCR2 &= 0xfcff; /* PB4MD = 00 */
|
||||
PBIOR &= ~(PBDR_BTN_ON|PBDR_BTN_OFF); /* Inputs */
|
||||
|
||||
/* Set A/D to scan AN4 and AN5.
|
||||
* This needs to be changed to scan other analog pins
|
||||
* for battery level, etc. */
|
||||
ADCSR = 0;
|
||||
ADCR = 0;
|
||||
ADCSR = ADCSR_ADST | ADCSR_SCAN | 0x5;
|
||||
#endif
|
||||
last = BUTTON_NONE;
|
||||
count = 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Get button pressed from hardware
|
||||
*/
|
||||
static int get_raw_button (void)
|
||||
{
|
||||
/* Check port B pins for ON and OFF */
|
||||
int data = PBDR;
|
||||
if ((data & PBDR_BTN_ON) == 0)
|
||||
return BUTTON_ON;
|
||||
else if ((data & PBDR_BTN_OFF) == 0)
|
||||
return BUTTON_OFF;
|
||||
|
||||
/* Check AN4 pin for F1-3 and UP */
|
||||
data = ADDRAH;
|
||||
if (data >= LEVEL4)
|
||||
return BUTTON_F3;
|
||||
else if (data >= LEVEL3)
|
||||
return BUTTON_UP;
|
||||
else if (data >= LEVEL2)
|
||||
return BUTTON_F2;
|
||||
else if (data >= LEVEL1)
|
||||
return BUTTON_F1;
|
||||
|
||||
/* Check AN5 pin for DOWN, PLAY, LEFT, RIGHT */
|
||||
data = ADDRBH;
|
||||
if (data >= LEVEL4)
|
||||
return BUTTON_DOWN;
|
||||
else if (data >= LEVEL3)
|
||||
return BUTTON_PLAY;
|
||||
else if (data >= LEVEL2)
|
||||
return BUTTON_LEFT;
|
||||
else if (data >= LEVEL1)
|
||||
return BUTTON_RIGHT;
|
||||
|
||||
return BUTTON_NONE;
|
||||
}
|
||||
|
||||
/*
|
||||
* Get the currently pressed button.
|
||||
* Returns one of BUTTON_xxx codes, with possibly a modifier bit set.
|
||||
* No modifier bits are set when the button is first pressed.
|
||||
* BUTTON_HELD bit is while the button is being held.
|
||||
* BUTTON_REL bit is set when button has been released.
|
||||
*/
|
||||
int button_get(void)
|
||||
{
|
||||
int btn = get_raw_button();
|
||||
int ret;
|
||||
|
||||
/* Last button pressed is still down */
|
||||
if (btn != BUTTON_NONE && btn == last) {
|
||||
count++;
|
||||
if (count == BOUNCE_COUNT)
|
||||
return btn;
|
||||
else if (count >= HOLD_COUNT)
|
||||
return btn | BUTTON_HELD;
|
||||
else
|
||||
return BUTTON_NONE;
|
||||
}
|
||||
|
||||
/* Last button pressed now released */
|
||||
if (btn == BUTTON_NONE && last != BUTTON_NONE)
|
||||
ret = last | BUTTON_REL;
|
||||
else
|
||||
ret = BUTTON_NONE;
|
||||
|
||||
last = btn;
|
||||
count = 0;
|
||||
return ret;
|
||||
}
|
||||
|
||||
#elif HAVE_PLAYER_KEYPAD
|
||||
|
||||
/* The player has all buttons on port pins:
|
||||
|
||||
LEFT: PC0
|
||||
RIGHT: PC2
|
||||
PLAY: PC3
|
||||
STOP: PA11
|
||||
ON: PA5
|
||||
MENU: PC1
|
||||
*/
|
||||
|
||||
void button_init(void)
|
||||
{
|
||||
/* set port pins as input */
|
||||
PAIOR &= ~0x820;
|
||||
}
|
||||
|
||||
int button_get(void)
|
||||
{
|
||||
int porta = PADR;
|
||||
int portc = PCDR;
|
||||
int btn = 0;
|
||||
|
||||
if ( portc & 1 )
|
||||
btn |= BUTTON_LEFT;
|
||||
if ( portc & 2 )
|
||||
btn |= BUTTON_MENU;
|
||||
if ( portc & 4 )
|
||||
btn |= BUTTON_RIGHT;
|
||||
if ( portc & 8 )
|
||||
btn |= BUTTON_PLAY | BUTTON_UP;
|
||||
if ( porta & 0x20 )
|
||||
btn |= BUTTON_ON;
|
||||
if ( porta & 0x800 )
|
||||
btn |= BUTTON_STOP | BUTTON_DOWN;
|
||||
|
||||
return btn;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
/* -----------------------------------------------------------------
|
||||
* local variables:
|
||||
* eval: (load-file "rockbox-mode.el")
|
||||
* end:
|
||||
*/
|
||||
Loading…
Add table
Add a link
Reference in a new issue