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kernel/linux-imx6_3.14.28/drivers/pinctrl/pinctrl-exynos.h 2.87 KB
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  /*
   * Exynos specific definitions for Samsung pinctrl and gpiolib driver.
   *
   * Copyright (c) 2012 Samsung Electronics Co., Ltd.
   *		http://www.samsung.com
   * Copyright (c) 2012 Linaro Ltd
   *		http://www.linaro.org
   *
   * This file contains the Exynos specific definitions for the Samsung
   * pinctrl/gpiolib interface drivers.
   *
   * Author: Thomas Abraham <thomas.ab@samsung.com>
   *
   * 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.
   */
  
  /* External GPIO and wakeup interrupt related definitions */
  #define EXYNOS_GPIO_ECON_OFFSET		0x700
  #define EXYNOS_GPIO_EFLTCON_OFFSET	0x800
  #define EXYNOS_GPIO_EMASK_OFFSET	0x900
  #define EXYNOS_GPIO_EPEND_OFFSET	0xA00
  #define EXYNOS_WKUP_ECON_OFFSET		0xE00
  #define EXYNOS_WKUP_EMASK_OFFSET	0xF00
  #define EXYNOS_WKUP_EPEND_OFFSET	0xF40
  #define EXYNOS_SVC_OFFSET		0xB08
  #define EXYNOS_EINT_FUNC		0xF
  
  /* helpers to access interrupt service register */
  #define EXYNOS_SVC_GROUP_SHIFT		3
  #define EXYNOS_SVC_GROUP_MASK		0x1f
  #define EXYNOS_SVC_NUM_MASK		7
  #define EXYNOS_SVC_GROUP(x)		((x >> EXYNOS_SVC_GROUP_SHIFT) & \
  						EXYNOS_SVC_GROUP_MASK)
  
  /* Exynos specific external interrupt trigger types */
  #define EXYNOS_EINT_LEVEL_LOW		0
  #define EXYNOS_EINT_LEVEL_HIGH		1
  #define EXYNOS_EINT_EDGE_FALLING	2
  #define EXYNOS_EINT_EDGE_RISING		3
  #define EXYNOS_EINT_EDGE_BOTH		4
  #define EXYNOS_EINT_CON_MASK		0xF
  #define EXYNOS_EINT_CON_LEN		4
  
  #define EXYNOS_EINT_MAX_PER_BANK	8
  #define EXYNOS_EINT_NR_WKUP_EINT
  
  #define EXYNOS_PIN_BANK_EINTN(pins, reg, id)		\
  	{						\
  		.type		= &bank_type_off,	\
  		.pctl_offset	= reg,			\
  		.nr_pins	= pins,			\
  		.eint_type	= EINT_TYPE_NONE,	\
  		.name		= id			\
  	}
  
  #define EXYNOS_PIN_BANK_EINTG(pins, reg, id, offs)	\
  	{						\
  		.type		= &bank_type_off,	\
  		.pctl_offset	= reg,			\
  		.nr_pins	= pins,			\
  		.eint_type	= EINT_TYPE_GPIO,	\
  		.eint_offset	= offs,			\
  		.name		= id			\
  	}
  
  #define EXYNOS_PIN_BANK_EINTW(pins, reg, id, offs)	\
  	{						\
  		.type		= &bank_type_alive,	\
  		.pctl_offset	= reg,			\
  		.nr_pins	= pins,			\
  		.eint_type	= EINT_TYPE_WKUP,	\
  		.eint_offset	= offs,			\
  		.name		= id			\
  	}
  
  /**
   * struct exynos_weint_data: irq specific data for all the wakeup interrupts
   * generated by the external wakeup interrupt controller.
   * @irq: interrupt number within the domain.
   * @bank: bank responsible for this interrupt
   */
  struct exynos_weint_data {
  	unsigned int irq;
  	struct samsung_pin_bank *bank;
  };
  
  /**
   * struct exynos_muxed_weint_data: irq specific data for muxed wakeup interrupts
   * generated by the external wakeup interrupt controller.
   * @nr_banks: count of banks being part of the mux
   * @banks: array of banks being part of the mux
   */
  struct exynos_muxed_weint_data {
  	unsigned int nr_banks;
  	struct samsung_pin_bank *banks[];
  };