drivers/pinctrl/pinctrl-exynos.h

   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_EMASK_OFFSET        0x900
  23 #define EXYNOS_GPIO_EPEND_OFFSET        0xA00
  24 #define EXYNOS_WKUP_ECON_OFFSET         0xE00
  25 #define EXYNOS_WKUP_EMASK_OFFSET        0xF00
  26 #define EXYNOS_WKUP_EPEND_OFFSET        0xF40
  27 #define EXYNOS_SVC_OFFSET               0xB08
  28 #define EXYNOS_EINT_FUNC                0xF
  29
  30 /* helpers to access interrupt service register */
  31 #define EXYNOS_SVC_GROUP_SHIFT          3
  32 #define EXYNOS_SVC_GROUP_MASK           0x1f
  33 #define EXYNOS_SVC_NUM_MASK             7
  34 #define EXYNOS_SVC_GROUP(x)             ((x >> EXYNOS_SVC_GROUP_SHIFT) & \
  35                                                 EXYNOS_SVC_GROUP_MASK)
  36
  37 /* Exynos specific external interrupt trigger types */
  38 #define EXYNOS_EINT_LEVEL_LOW           0
  39 #define EXYNOS_EINT_LEVEL_HIGH          1
  40 #define EXYNOS_EINT_EDGE_FALLING        2
  41 #define EXYNOS_EINT_EDGE_RISING         3
  42 #define EXYNOS_EINT_EDGE_BOTH           4
  43 #define EXYNOS_EINT_CON_MASK            0xF
  44 #define EXYNOS_EINT_CON_LEN             4
  45
  46 #define EXYNOS_EINT_MAX_PER_BANK        8
  47 #define EXYNOS_EINT_NR_WKUP_EINT
  48
  49 #define EXYNOS_PIN_BANK_EINTN(pins, reg, id)            \
  50         {                                               \
  51                 .pctl_offset    = reg,                  \
  52                 .nr_pins        = pins,                 \
  53                 .func_width     = 4,                    \
  54                 .pud_width      = 2,                    \
  55                 .drv_width      = 2,                    \
  56                 .conpdn_width   = 2,                    \
  57                 .pudpdn_width   = 2,                    \
  58                 .eint_type      = EINT_TYPE_NONE,       \
  59                 .name           = id                    \
  60         }
  61
  62 #define EXYNOS_PIN_BANK_EINTG(pins, reg, id, offs)      \
  63         {                                               \
  64                 .pctl_offset    = reg,                  \
  65                 .nr_pins        = pins,                 \
  66                 .func_width     = 4,                    \
  67                 .pud_width      = 2,                    \
  68                 .drv_width      = 2,                    \
  69                 .conpdn_width   = 2,                    \
  70                 .pudpdn_width   = 2,                    \
  71                 .eint_type      = EINT_TYPE_GPIO,       \
  72                 .eint_offset    = offs,                 \
  73                 .name           = id                    \
  74         }
  75
  76 #define EXYNOS_PIN_BANK_EINTW(pins, reg, id, offs)      \
  77         {                                               \
  78                 .pctl_offset    = reg,                  \
  79                 .nr_pins        = pins,                 \
  80                 .func_width     = 4,                    \
  81                 .pud_width      = 2,                    \
  82                 .drv_width      = 2,                    \
  83                 .eint_type      = EINT_TYPE_WKUP,       \
  84                 .eint_offset    = offs,                 \
  85                 .name           = id                    \
  86         }
  87
  88 /**
  89  * struct exynos_weint_data: irq specific data for all the wakeup interrupts
  90  * generated by the external wakeup interrupt controller.
  91  * @irq: interrupt number within the domain.
  92  * @bank: bank responsible for this interrupt
  93  */
  94 struct exynos_weint_data {
  95         unsigned int irq;
  96         struct samsung_pin_bank *bank;
  97 };
  98
  99 /**
 100  * struct exynos_muxed_weint_data: irq specific data for muxed wakeup interrupts
 101  * generated by the external wakeup interrupt controller.
 102  * @nr_banks: count of banks being part of the mux
 103  * @banks: array of banks being part of the mux
 104  */
 105 struct exynos_muxed_weint_data {
 106         unsigned int nr_banks;
 107         struct samsung_pin_bank *banks[];
 108 };