e36b20c4a1
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30120 a1c6a512-1295-4272-9138-f99709370657
124 lines
4.7 KiB
C
124 lines
4.7 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 __PINCTRL_IMX233_H__
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#define __PINCTRL_IMX233_H__
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#include "cpu.h"
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#define HW_PINCTRL_BASE 0x80018000
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#define HW_PINCTRL_CTRL (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x0))
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#define HW_PINCTRL_MUXSEL(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x100 + (i) * 0x10))
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#define HW_PINCTRL_DRIVE(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x200 + (i) * 0x10))
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#define HW_PINCTRL_PULL(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x400 + (i) * 0x10))
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#define HW_PINCTRL_DOUT(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x500 + (i) * 0x10))
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#define HW_PINCTRL_DIN(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x600 + (i) * 0x10))
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#define HW_PINCTRL_DOE(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x700 + (i) * 0x10))
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#define HW_PINCTRL_PIN2IRQ(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x800 + (i) * 0x10))
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#define HW_PINCTRL_IRQEN(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x900 + (i) * 0x10))
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#define HW_PINCTRL_IRQEN(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x900 + (i) * 0x10))
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#define HW_PINCTRL_IRQLEVEL(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0xa00 + (i) * 0x10))
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#define HW_PINCTRL_IRQPOL(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0xb00 + (i) * 0x10))
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#define HW_PINCTRL_IRQSTAT(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0xc00 + (i) * 0x10))
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#define PINCTRL_FUNCTION_MAIN 0
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#define PINCTRL_FUNCTION_ALT1 1
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#define PINCTRL_FUNCTION_ALT2 2
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#define PINCTRL_FUNCTION_GPIO 3
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#define PINCTRL_DRIVE_4mA 0
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#define PINCTRL_DRIVE_8mA 1
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#define PINCTRL_DRIVE_12mA 2
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#define PINCTRL_DRIVE_16mA 3 /* not available on all pins */
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static inline void imx233_pinctrl_init(void)
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{
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__REG_CLR(HW_PINCTRL_CTRL) = __BLOCK_CLKGATE | __BLOCK_SFTRST;
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}
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static inline void imx233_set_pin_drive_strength(unsigned bank, unsigned pin, unsigned strength)
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{
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__REG_CLR(HW_PINCTRL_DRIVE(4 * bank + pin / 8)) = 3 << (4 * (pin % 8));
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__REG_SET(HW_PINCTRL_DRIVE(4 * bank + pin / 8)) = strength << (4 * (pin % 8));
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}
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static inline void imx233_enable_gpio_output(unsigned bank, unsigned pin, bool enable)
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{
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if(enable)
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__REG_SET(HW_PINCTRL_DOE(bank)) = 1 << pin;
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else
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__REG_CLR(HW_PINCTRL_DOE(bank)) = 1 << pin;
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}
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static inline void imx233_enable_gpio_output_mask(unsigned bank, uint32_t pin_mask, bool enable)
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{
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if(enable)
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__REG_SET(HW_PINCTRL_DOE(bank)) = pin_mask;
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else
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__REG_CLR(HW_PINCTRL_DOE(bank)) = pin_mask;
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}
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static inline void imx233_set_gpio_output(unsigned bank, unsigned pin, bool value)
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{
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if(value)
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__REG_SET(HW_PINCTRL_DOUT(bank)) = 1 << pin;
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else
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__REG_CLR(HW_PINCTRL_DOUT(bank)) = 1 << pin;
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}
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static inline void imx233_set_gpio_output_mask(unsigned bank, uint32_t pin_mask, bool value)
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{
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if(value)
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__REG_SET(HW_PINCTRL_DOUT(bank)) = pin_mask;
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else
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__REG_CLR(HW_PINCTRL_DOUT(bank)) = pin_mask;
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}
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static inline uint32_t imx233_get_gpio_input_mask(unsigned bank, uint32_t pin_mask)
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{
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return HW_PINCTRL_DIN(bank) & pin_mask;
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}
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static inline void imx233_set_pin_function(unsigned bank, unsigned pin, unsigned function)
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{
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__REG_CLR(HW_PINCTRL_MUXSEL(2 * bank + pin / 16)) = 3 << (2 * (pin % 16));
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__REG_SET(HW_PINCTRL_MUXSEL(2 * bank + pin / 16)) = function << (2 * (pin % 16));
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}
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static inline void imx233_enable_pin_pullup(unsigned bank, unsigned pin, bool enable)
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{
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if(enable)
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__REG_SET(HW_PINCTRL_PULL(bank)) = 1 << pin;
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else
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__REG_CLR(HW_PINCTRL_PULL(bank)) = 1 << pin;
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}
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static inline void imx233_enable_pin_pullup_mask(unsigned bank, uint32_t pin_msk, bool enable)
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{
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if(enable)
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__REG_SET(HW_PINCTRL_PULL(bank)) = pin_msk;
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else
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__REG_CLR(HW_PINCTRL_PULL(bank)) = pin_msk;
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}
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#endif /* __PINCTRL_IMX233_H__ */
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