58 lines
2.3 KiB
C
58 lines
2.3 KiB
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) 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 TIMROT_IMX233_H
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#define TIMROT_IMX233_H
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#include "system.h"
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#include "cpu.h"
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#define HW_TIMROT_BASE 0x80068000
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#define HW_TIMROT_ROTCTRL (*(volatile uint32_t *)(HW_TIMROT_BASE + 0x0))
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#define HW_TIMROT_ROTCOUNT (*(volatile uint32_t *)(HW_TIMROT_BASE + 0x10))
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#define HW_TIMROT_TIMCTRL(i) (*(volatile uint32_t *)(HW_TIMROT_BASE + 0x20 + (i) * 0x20))
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#define HW_TIMROT_TIMCTRL__IRQ (1 << 15)
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#define HW_TIMROT_TIMCTRL__IRQ_EN (1 << 14)
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#define HW_TIMROT_TIMCTRL__POLARITY (1 << 8)
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#define HW_TIMROT_TIMCTRL__UPDATE (1 << 7)
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#define HW_TIMROT_TIMCTRL__RELOAD (1 << 6)
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#define HW_TIMROT_TIMCTRL__PRESCALE_1 (0 << 4)
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#define HW_TIMROT_TIMCTRL__PRESCALE_2 (1 << 4)
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#define HW_TIMROT_TIMCTRL__PRESCALE_4 (2 << 4)
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#define HW_TIMROT_TIMCTRL__PRESCALE_8 (3 << 4)
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#define HW_TIMROT_TIMCTRL__SELECT_32KHZ_XTAL 8
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#define HW_TIMROT_TIMCTRL__SELECT_8KHZ_XTAL 9
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#define HW_TIMROT_TIMCTRL__SELECT_4KHZ_XTAL 10
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#define HW_TIMROT_TIMCTRL__SELECT_1KHZ_XTAL 11
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#define HW_TIMROT_TIMCTRL__SELECT_TICK_ALWAYS 12
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#define HW_TIMROT_TIMCOUNT(i) (*(volatile uint32_t *)(HW_TIMROT_BASE + 0x30 + (i) * 0x20))
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typedef void (*imx233_timer_fn_t)(void);
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void imx233_timrot_init(void);
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void imx233_setup_timer(unsigned timer_nr, bool reload, unsigned count,
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unsigned src, unsigned prescale, bool polarity, imx233_timer_fn_t fn);
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#endif /* TIMROT_IMX233_H */
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