linux/drivers/pinctrl/pinctrl-exynos.h
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   1/*
   2 * Exynos specific definitions for Samsung pinctrl and gpiolib driver.
   3 *
   4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
   5 *              http://www.samsung.com
   6 * Copyright (c) 2012 Linaro Ltd
   7 *              http://www.linaro.org
   8 *
   9 * This file contains the Exynos specific definitions for the Samsung
  10 * pinctrl/gpiolib interface drivers.
  11 *
  12 * Author: Thomas Abraham <thomas.ab@samsung.com>
  13 *
  14 * This program is free software; you can redistribute it and/or modify
  15 * it under the terms of the GNU General Public License as published by
  16 * the Free Software Foundation; either version 2 of the License, or
  17 * (at your option) any later version.
  18 */
  19
  20/* External GPIO and wakeup interrupt related definitions */
  21#define EXYNOS_GPIO_ECON_OFFSET         0x700
  22#define EXYNOS_GPIO_EFLTCON_OFFSET      0x800
  23#define EXYNOS_GPIO_EMASK_OFFSET        0x900
  24#define EXYNOS_GPIO_EPEND_OFFSET        0xA00
  25#define EXYNOS_WKUP_ECON_OFFSET         0xE00
  26#define EXYNOS_WKUP_EMASK_OFFSET        0xF00
  27#define EXYNOS_WKUP_EPEND_OFFSET        0xF40
  28#define EXYNOS_SVC_OFFSET               0xB08
  29#define EXYNOS_EINT_FUNC                0xF
  30
  31/* helpers to access interrupt service register */
  32#define EXYNOS_SVC_GROUP_SHIFT          3
  33#define EXYNOS_SVC_GROUP_MASK           0x1f
  34#define EXYNOS_SVC_NUM_MASK             7
  35#define EXYNOS_SVC_GROUP(x)             ((x >> EXYNOS_SVC_GROUP_SHIFT) & \
  36                                                EXYNOS_SVC_GROUP_MASK)
  37
  38/* Exynos specific external interrupt trigger types */
  39#define EXYNOS_EINT_LEVEL_LOW           0
  40#define EXYNOS_EINT_LEVEL_HIGH          1
  41#define EXYNOS_EINT_EDGE_FALLING        2
  42#define EXYNOS_EINT_EDGE_RISING         3
  43#define EXYNOS_EINT_EDGE_BOTH           4
  44#define EXYNOS_EINT_CON_MASK            0xF
  45#define EXYNOS_EINT_CON_LEN             4
  46
  47#define EXYNOS_EINT_MAX_PER_BANK        8
  48#define EXYNOS_EINT_NR_WKUP_EINT
  49
  50#define EXYNOS_PIN_BANK_EINTN(pins, reg, id)            \
  51        {                                               \
  52                .type           = &bank_type_off,       \
  53                .pctl_offset    = reg,                  \
  54                .nr_pins        = pins,                 \
  55                .eint_type      = EINT_TYPE_NONE,       \
  56                .name           = id                    \
  57        }
  58
  59#define EXYNOS_PIN_BANK_EINTG(pins, reg, id, offs)      \
  60        {                                               \
  61                .type           = &bank_type_off,       \
  62                .pctl_offset    = reg,                  \
  63                .nr_pins        = pins,                 \
  64                .eint_type      = EINT_TYPE_GPIO,       \
  65                .eint_offset    = offs,                 \
  66                .name           = id                    \
  67        }
  68
  69#define EXYNOS_PIN_BANK_EINTW(pins, reg, id, offs)      \
  70        {                                               \
  71                .type           = &bank_type_alive,     \
  72                .pctl_offset    = reg,                  \
  73                .nr_pins        = pins,                 \
  74                .eint_type      = EINT_TYPE_WKUP,       \
  75                .eint_offset    = offs,                 \
  76                .name           = id                    \
  77        }
  78
  79/**
  80 * struct exynos_weint_data: irq specific data for all the wakeup interrupts
  81 * generated by the external wakeup interrupt controller.
  82 * @irq: interrupt number within the domain.
  83 * @bank: bank responsible for this interrupt
  84 */
  85struct exynos_weint_data {
  86        unsigned int irq;
  87        struct samsung_pin_bank *bank;
  88};
  89
  90/**
  91 * struct exynos_muxed_weint_data: irq specific data for muxed wakeup interrupts
  92 * generated by the external wakeup interrupt controller.
  93 * @nr_banks: count of banks being part of the mux
  94 * @banks: array of banks being part of the mux
  95 */
  96struct exynos_muxed_weint_data {
  97        unsigned int nr_banks;
  98        struct samsung_pin_bank *banks[];
  99};
 100
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