69 lines
2.7 KiB
C
69 lines
2.7 KiB
C
|
/***************************************************************************
|
||
|
|
* __________ __ ___.
|
||
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
||
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
||
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
||
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
||
|
|
* \/ \/ \/ \/ \/
|
||
|
|
* $Id$
|
||
|
|
*
|
||
|
|
* Copyright (C) 2011 by Amaury Pouly
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
#ifndef __PWM_IMX233_H__
|
||
|
|
#define __PWM_IMX233_H__
|
||
|
|
|
||
|
|
#include "system.h"
|
||
|
|
|
||
|
|
#define HW_PWM_BASE 0x80064000
|
||
|
|
|
||
|
|
#define HW_PWM_CTRL (*(volatile uint32_t *)(HW_PWM_BASE + 0x0))
|
||
|
|
#define HW_PWM_CTRL__PWMx_ENABLE(x) (1 << (x))
|
||
|
|
|
||
|
|
#define HW_PWM_ACTIVEx(x) (*(volatile uint32_t *)(HW_PWM_BASE + 0x10 + (x) * 0x20))
|
||
|
|
#define HW_PWM_ACTIVEx__ACTIVE_BP 0
|
||
|
|
#define HW_PWM_ACTIVEx__ACTIVE_BM 0xffff
|
||
|
|
#define HW_PWM_ACTIVEx__INACTIVE_BP 16
|
||
|
|
#define HW_PWM_ACTIVEx__INACTIVE_BM 0xffff0000
|
||
|
|
|
||
|
|
#define HW_PWM_PERIODx(x) (*(volatile uint32_t *)(HW_PWM_BASE + 0x20 + (x) * 0x20))
|
||
|
|
#define HW_PWM_PERIODx__PERIOD_BP 0
|
||
|
|
#define HW_PWM_PERIODx__PERIOD_BM 0xffff
|
||
|
|
#define HW_PWM_PERIODx__ACTIVE_STATE_BP 16
|
||
|
|
#define HW_PWM_PERIODx__ACTIVE_STATE_BM (0x3 << 16)
|
||
|
|
#define HW_PWM_PERIODx__INACTIVE_STATE_BP 18
|
||
|
|
#define HW_PWM_PERIODx__INACTIVE_STATE_BM (0x3 << 18)
|
||
|
|
#define HW_PWM_PERIODx__CDIV_BP 20
|
||
|
|
#define HW_PWM_PERIODx__CDIV_BM (0x7 << 20)
|
||
|
|
#define HW_PWM_PERIODx__CDIV__DIV_1 0
|
||
|
|
#define HW_PWM_PERIODx__CDIV__DIV_2 1
|
||
|
|
#define HW_PWM_PERIODx__CDIV__DIV_4 2
|
||
|
|
#define HW_PWM_PERIODx__CDIV__DIV_8 3
|
||
|
|
#define HW_PWM_PERIODx__CDIV__DIV_16 4
|
||
|
|
#define HW_PWM_PERIODx__CDIV__DIV_64 5
|
||
|
|
#define HW_PWM_PERIODx__CDIV__DIV_256 6
|
||
|
|
#define HW_PWM_PERIODx__CDIV__DIV_1024 7
|
||
|
|
|
||
|
|
#define HW_PWM_PERIODx__STATE__HI_Z 0
|
||
|
|
#define HW_PWM_PERIODx__STATE__LOW 2
|
||
|
|
#define HW_PWM_PERIODx__STATE__HIGH 3
|
||
|
|
|
||
|
|
#define IMX233_PWM_PIN_BANK(channel) 1
|
||
|
|
#define IMX233_PWM_PIN(channel) (26 + (channel))
|
||
|
|
|
||
|
|
void imx233_pwm_init(void);
|
||
|
|
void imx233_pwm_setup_channel(int channel, int period, int cdiv, int active,
|
||
|
|
int active_state, int inactive, int inactive_state);
|
||
|
|
void imx233_pwm_enable_channel(int channel, bool enable);
|
||
|
|
bool imx233_pwm_is_channel_enable(int channel);
|
||
|
|
|
||
|
|
#endif /* __PWM_IMX233_H__ */
|