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Initial framework for the Sandisk Sansa Clip Zip
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30365 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Bertrik Sikken
parent
3aeb7fad9a
commit
463b3ed8b2
18 changed files with 603 additions and 12 deletions
42
firmware/target/arm/as3525/sansa-clipzip/backlight-clipzip.c
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42
firmware/target/arm/as3525/sansa-clipzip/backlight-clipzip.c
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/***************************************************************************
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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 © 2011 Bertrik Sikken
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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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#include "backlight-target.h"
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#include "lcd.h"
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#include "as3525v2.h"
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#include "ascodec-target.h"
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void _backlight_init()
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{
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/* GPIO B2 controls backlight */
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GPIOB_DIR |= (1 << 2);
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}
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void _backlight_on(void)
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{
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/* TODO */
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}
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void _backlight_off(void)
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{
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/* TODO */
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}
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30
firmware/target/arm/as3525/sansa-clipzip/backlight-target.h
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30
firmware/target/arm/as3525/sansa-clipzip/backlight-target.h
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/***************************************************************************
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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 © 2011 Bertrik Sikken
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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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#ifndef BACKLIGHT_TARGET_H
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#define BACKLIGHT_TARGET_H
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void _backlight_init(void);
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void _backlight_on(void);
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void _backlight_off(void);
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#define _backlight_panic_on() _backlight_on()
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#endif
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103
firmware/target/arm/as3525/sansa-clipzip/button-clipzip.c
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103
firmware/target/arm/as3525/sansa-clipzip/button-clipzip.c
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/***************************************************************************
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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) 2008 François Dinel
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* Copyright © 2008-2009 Rafaël Carré
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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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#include "config.h"
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#include "button-target.h"
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#include "as3525v2.h"
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#include "kernel.h"
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#include "system-target.h"
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void button_init_device(void)
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{
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/* GPIO A6, A7 and D6 are direct button inputs */
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GPIOA_DIR &= ~(1 << 6);
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GPIOA_DIR &= ~(1 << 7);
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GPIOD_DIR &= ~(1 << 6);
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/* GPIO C1, C2, C3, C4, C5 are used in a column/row key scan matrix */
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GPIOC_DIR |= ((1 << 1) | (1 << 2));
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GPIOC_DIR &= ~((1 << 3) | (1 << 4) | (1 << 5));
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}
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/* TODO:
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Instead of using udelay to wait for buttons to settle, we could use a
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simple state machine to alternate between key matrix rows (like we do on
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the clip) and this way avoid burning cycles in the udelay.
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TODO:
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Figure out the real mappings from GPIOs to buttons.
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The current mapping is just an educated guess.
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*/
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int button_read_device(void)
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{
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int buttons = 0;
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/* power */
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if (GPIOD_PIN(6)) {
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buttons |= BUTTON_POWER;
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}
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/* volume */
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if (GPIOA_PIN(6)) {
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buttons |= BUTTON_VOL_DOWN;
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}
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if (GPIOA_PIN(7)) {
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buttons |= BUTTON_VOL_UP;
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}
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/* key matrix buttons, first row */
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GPIOC_PIN(1) = (1 << 1);
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GPIOC_PIN(2) = 0;
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udelay(500);
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if (GPIOC_PIN(3)) {
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buttons |= BUTTON_LEFT;
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}
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if (GPIOC_PIN(4)) {
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buttons |= BUTTON_SELECT;
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}
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if (GPIOC_PIN(5)) {
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buttons |= BUTTON_RIGHT;
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}
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/* key matrix buttons, second row */
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GPIOC_PIN(1) = 0;
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GPIOC_PIN(2) = (1 << 2);
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udelay(500);
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if (GPIOC_PIN(3)) {
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buttons |= BUTTON_UP;
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}
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if (GPIOC_PIN(4)) {
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buttons |= BUTTON_HOME;
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}
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if (GPIOC_PIN(5)) {
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buttons |= BUTTON_DOWN;
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}
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/* deselect scan rows */
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GPIOC_PIN(2) = 0;
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return buttons;
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}
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55
firmware/target/arm/as3525/sansa-clipzip/button-target.h
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55
firmware/target/arm/as3525/sansa-clipzip/button-target.h
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@ -0,0 +1,55 @@
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/***************************************************************************
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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) 2008 François Dinel
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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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#ifndef _BUTTON_TARGET_H_
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#define _BUTTON_TARGET_H_
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#include "config.h"
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void button_init_device(void);
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int button_read_device(void);
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/* Main unit's buttons */
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#define BUTTON_HOME 0x00000001
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#define BUTTON_VOL_UP 0x00000002
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#define BUTTON_VOL_DOWN 0x00000004
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#define BUTTON_UP 0x00000008
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#define BUTTON_DOWN 0x00000010
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#define BUTTON_LEFT 0x00000020
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#define BUTTON_RIGHT 0x00000040
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#define BUTTON_SELECT 0x00000080
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#define BUTTON_POWER 0x00000100
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#define BUTTON_MAIN (BUTTON_HOME|BUTTON_VOL_UP|BUTTON_VOL_DOWN\
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|BUTTON_UP|BUTTON_DOWN|BUTTON_LEFT|BUTTON_RIGHT\
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|BUTTON_SELECT|BUTTON_POWER)
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#define BUTTON_REMOTE 0
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/* Software power-off */
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#define POWEROFF_BUTTON BUTTON_POWER
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#define POWEROFF_COUNT 10
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#endif /* _BUTTON_TARGET_H_ */
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103
firmware/target/arm/as3525/sansa-clipzip/lcd-clipzip.c
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103
firmware/target/arm/as3525/sansa-clipzip/lcd-clipzip.c
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/***************************************************************************
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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) 2008 François Dinel
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* Copyright (C) 2008-2009 Rafaël Carré
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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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#include "config.h"
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#include "lcd.h"
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#include "lcd-clip.h"
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#include "system.h"
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#include "cpu.h"
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static int display_type;
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int lcd_hw_init(void)
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{
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bitset32(&CGU_PERI, CGU_SSP_CLOCK_ENABLE);
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SSP_CPSR = AS3525_SSP_PRESCALER; /* OF = 0x10 */
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SSP_CR0 = (1<<7) | (1<<6) | 7; /* Motorola SPI frame format, 8 bits */
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SSP_CR1 = (1<<3) | (1<<1); /* SSP Operation enabled */
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SSP_IMSC = 0; /* No interrupts */
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/* configure GPIO B2 (display D/C#) as output */
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GPIOB_DIR |= (1<<2);
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/* configure GPIO B3 (display type detect) as input */
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GPIOB_DIR &= ~(1<<3);
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/* set GPIO A5 (display RESET# ?) */
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GPIOA_DIR |= (1<<5);
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GPIOA_PIN(5) = (1<<5);
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/* detect display type on GPIO B3 */
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return GPIOB_PIN(3) ? 1 : 0;
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}
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void lcd_write_command(int byte)
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{
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while(SSP_SR & (1<<4)) /* BSY flag */
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;
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/* LCD command mode */
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GPIOB_PIN(2) = 0;
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SSP_DATA = byte;
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while(SSP_SR & (1<<4)) /* BSY flag */
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;
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}
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void lcd_write_data(const fb_data* p_bytes, int count)
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{
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/* LCD data mode */
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GPIOB_PIN(2) = (1<<2);
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while (count--)
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{
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while(!(SSP_SR & (1<<1))) /* wait until transmit FIFO is not full */
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;
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SSP_DATA = *p_bytes++;
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}
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}
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void lcd_update(void)
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{
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/* TODO */
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}
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void lcd_init_device(void)
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{
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/* TODO */
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display_type = lcd_hw_init();
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}
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/* Update a fraction of the display. */
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void lcd_update_rect(int x, int y, int width, int height)
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{
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(void) x;
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(void) y;
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(void) width;
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(void) height;
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/* TODO not implemented yet, do a full update instead */
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lcd_update();
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}
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