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