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teensy-sd/utility/ioreg.h

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  1. /* Optimized SD Library for Teensy 3.X

  2.  * Copyright (c) 2015, Paul Stoffregen, paul@pjrc.com

  3.  *

  4.  * Development of this SD library was funded by PJRC.COM, LLC by sales of

  5.  * Teensy and Audio Adaptor boards.  Please support PJRC's efforts to develop

  6.  * open source software by purchasing genuine Teensy or other PJRC products.

  7.  *

  8.  * Permission is hereby granted, free of charge, to any person obtaining a copy

  9.  * of this software and associated documentation files (the "Software"), to deal

  10.  * in the Software without restriction, including without limitation the rights

  11.  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

  12.  * copies of the Software, and to permit persons to whom the Software is

  13.  * furnished to do so, subject to the following conditions:

  14.  *

  15.  * The above copyright notice, development funding notice, and this permission

  16.  * notice shall be included in all copies or substantial portions of the Software.

  17.  *

  18.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

  19.  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

  20.  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

  21.  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

  22.  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

  23.  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

  24.  * THE SOFTWARE.

  25.  */

  26. 

  27. #ifndef _SD_t3_ioreg_h_

  28. #define _SD_t3_ioreg_h_

  29. 

  30. // from OneWire.h

  31. 

  32. #include "Arduino.h"

  33. 

  34. #if defined(__AVR__)

  35. #define PIN_TO_BASEREG(pin)             (portInputRegister(digitalPinToPort(pin)))

  36. #define PIN_TO_BITMASK(pin)             (digitalPinToBitMask(pin))

  37. #define IO_REG_TYPE uint8_t

  38. #define IO_REG_ASM asm("r30")

  39. #define DIRECT_READ(base, mask)         (((*(base)) & (mask)) ? 1 : 0)

  40. #define DIRECT_MODE_INPUT(base, mask)   ((*((base)+1)) &= ~(mask))

  41. #define DIRECT_MODE_OUTPUT(base, mask)  ((*((base)+1)) |= (mask))

  42. #define DIRECT_WRITE_LOW(base, mask)    ((*((base)+2)) &= ~(mask))

  43. #define DIRECT_WRITE_HIGH(base, mask)   ((*((base)+2)) |= (mask))

  44. 

  45. #elif defined(__MK20DX128__) || defined(__MK20DX256__)

  46. #define PIN_TO_BASEREG(pin)             (portOutputRegister(pin))

  47. #define PIN_TO_BITMASK(pin)             (1)

  48. #define IO_REG_TYPE uint8_t

  49. #define IO_REG_ASM

  50. #define DIRECT_READ(base, mask)         (*((base)+512))

  51. #define DIRECT_MODE_INPUT(base, mask)   (*((base)+640) = 0)

  52. #define DIRECT_MODE_OUTPUT(base, mask)  (*((base)+640) = 1)

  53. #define DIRECT_WRITE_LOW(base, mask)    (*((base)+256) = 1)

  54. #define DIRECT_WRITE_HIGH(base, mask)   (*((base)+128) = 1)

  55. 

  56. #elif defined(__MKL26Z64__)

  57. #define PIN_TO_BASEREG(pin)             (portOutputRegister(pin))

  58. #define PIN_TO_BITMASK(pin)             (digitalPinToBitMask(pin))

  59. #define IO_REG_TYPE uint8_t

  60. #define IO_REG_ASM

  61. #define DIRECT_READ(base, mask)         ((*((base)+16) & (mask)) ? 1 : 0)

  62. #define DIRECT_MODE_INPUT(base, mask)   (*((base)+20) &= ~(mask))

  63. #define DIRECT_MODE_OUTPUT(base, mask)  (*((base)+20) |= (mask))

  64. #define DIRECT_WRITE_LOW(base, mask)    (*((base)+8) = (mask))

  65. #define DIRECT_WRITE_HIGH(base, mask)   (*((base)+4) = (mask))

  66. 

  67. #elif defined(__SAM3X8E__)

  68. #define PIN_TO_BASEREG(pin)             (&(digitalPinToPort(pin)->PIO_PER))

  69. #define PIN_TO_BITMASK(pin)             (digitalPinToBitMask(pin))

  70. #define IO_REG_TYPE uint32_t

  71. #define IO_REG_ASM

  72. #define DIRECT_READ(base, mask)         (((*((base)+15)) & (mask)) ? 1 : 0)

  73. #define DIRECT_MODE_INPUT(base, mask)   ((*((base)+5)) = (mask))

  74. #define DIRECT_MODE_OUTPUT(base, mask)  ((*((base)+4)) = (mask))

  75. #define DIRECT_WRITE_LOW(base, mask)    ((*((base)+13)) = (mask))

  76. #define DIRECT_WRITE_HIGH(base, mask)   ((*((base)+12)) = (mask))

  77. 

  78. #elif defined(__PIC32MX__)

  79. #define PIN_TO_BASEREG(pin)             (portModeRegister(digitalPinToPort(pin)))

  80. #define PIN_TO_BITMASK(pin)             (digitalPinToBitMask(pin))

  81. #define IO_REG_TYPE uint32_t

  82. #define IO_REG_ASM

  83. #define DIRECT_READ(base, mask)         (((*(base+4)) & (mask)) ? 1 : 0)  //PORTX + 0x10

  84. #define DIRECT_MODE_INPUT(base, mask)   ((*(base+2)) = (mask))            //TRISXSET + 0x08

  85. #define DIRECT_MODE_OUTPUT(base, mask)  ((*(base+1)) = (mask))            //TRISXCLR + 0x04

  86. #define DIRECT_WRITE_LOW(base, mask)    ((*(base+8+1)) = (mask))          //LATXCLR  + 0x24

  87. #define DIRECT_WRITE_HIGH(base, mask)   ((*(base+8+2)) = (mask))          //LATXSET + 0x28

  88. 

  89. #else

  90. #define PIN_TO_BASEREG(pin)             (0)

  91. #define PIN_TO_BITMASK(pin)             (pin)

  92. #define IO_REG_TYPE unsigned int

  93. #define IO_REG_ASM

  94. #define DIRECT_READ(base, pin)          digitalRead(pin)

  95. #define DIRECT_WRITE_LOW(base, pin)     digitalWrite(pin, LOW)

  96. #define DIRECT_WRITE_HIGH(base, pin)    digitalWrite(pin, HIGH)

  97. #define DIRECT_MODE_INPUT(base, pin)    pinMode(pin,INPUT)

  98. #define DIRECT_MODE_OUTPUT(base, pin)   pinMode(pin,OUTPUT)

  99. 

  100. #endif // CPU types

  101. 

  102. #endif