gpio.h 7.7 KB

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  1. /******************************************************************************
  2. * Filename: gpio.h
  3. * Revised: $Date: 2013-02-06 15:01:04 +0100 (Wed, 06 Feb 2013) $
  4. * Revision: $Revision: 9297 $
  5. *
  6. * Description: Prototypes for the GPIO driver.
  7. *
  8. * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
  9. *
  10. *
  11. * Redistribution and use in source and binary forms, with or without
  12. * modification, are permitted provided that the following conditions
  13. * are met:
  14. *
  15. * Redistributions of source code must retain the above copyright
  16. * notice, this list of conditions and the following disclaimer.
  17. *
  18. * Redistributions in binary form must reproduce the above copyright
  19. * notice, this list of conditions and the following disclaimer in the
  20. * documentation and/or other materials provided with the distribution.
  21. *
  22. * Neither the name of Texas Instruments Incorporated nor the names of
  23. * its contributors may be used to endorse or promote products derived
  24. * from this software without specific prior written permission.
  25. *
  26. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  27. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  28. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  29. * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  30. * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  31. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  32. * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  33. * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  34. * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  35. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  36. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  37. *
  38. ******************************************************************************/
  39. #ifndef __GPIO_H__
  40. #define __GPIO_H__
  41. //*****************************************************************************
  42. //
  43. // If building with a C++ compiler, make all of the definitions in this header
  44. // have a C binding.
  45. //
  46. //*****************************************************************************
  47. #ifdef __cplusplus
  48. extern "C"
  49. {
  50. #endif
  51. #include "hw_types.h"
  52. //*****************************************************************************
  53. //
  54. // The following values define the bit field for the ui8Pins argument to several
  55. // of the APIs.
  56. //
  57. //*****************************************************************************
  58. #define GPIO_PIN_0 0x00000001 // GPIO pin 0
  59. #define GPIO_PIN_1 0x00000002 // GPIO pin 1
  60. #define GPIO_PIN_2 0x00000004 // GPIO pin 2
  61. #define GPIO_PIN_3 0x00000008 // GPIO pin 3
  62. #define GPIO_PIN_4 0x00000010 // GPIO pin 4
  63. #define GPIO_PIN_5 0x00000020 // GPIO pin 5
  64. #define GPIO_PIN_6 0x00000040 // GPIO pin 6
  65. #define GPIO_PIN_7 0x00000080 // GPIO pin 7
  66. //*****************************************************************************
  67. //
  68. // Values that can be passed to GPIODirModeSet as the ui32PinIO parameter, and
  69. // returned from GPIODirModeGet.
  70. //
  71. //*****************************************************************************
  72. #define GPIO_DIR_MODE_IN 0x00000000 // Pin is a GPIO input
  73. #define GPIO_DIR_MODE_OUT 0x00000001 // Pin is a GPIO output
  74. #define GPIO_DIR_MODE_HW 0x00000002 // Pin is a peripheral function
  75. //*****************************************************************************
  76. //
  77. // Values that can be passed to GPIOIntTypeSet as the ui32IntType parameter, and
  78. // returned from GPIOIntTypeGet.
  79. //
  80. //*****************************************************************************
  81. #define GPIO_FALLING_EDGE 0x00000000 // Interrupt on falling edge
  82. #define GPIO_RISING_EDGE 0x00000004 // Interrupt on rising edge
  83. #define GPIO_BOTH_EDGES 0x00000001 // Interrupt on both edges
  84. #define GPIO_LOW_LEVEL 0x00000002 // Interrupt on low level
  85. #define GPIO_HIGH_LEVEL 0x00000007 // Interrupt on high level
  86. //*****************************************************************************
  87. //
  88. // Values that can be passed to the GPIOPowIntTypeSet function as the ui32IntType
  89. // parameter and returned from the GPIOPowIntTypeGet function.
  90. //
  91. //*****************************************************************************
  92. #define GPIO_POW_RISING_EDGE 0x00000000 // Interrupt on rising edge
  93. #define GPIO_POW_FALLING_EDGE 0x00000001 // Interrupt on falling edge
  94. //*****************************************************************************
  95. //
  96. // The following are values that can be passed to the GPIOIntWakeupEnable()
  97. // and GPIOIntWakeupDiable() API as the ui32Config parameter.
  98. //
  99. //*****************************************************************************
  100. #define GPIO_IWE_PORT_A 0x00000001 // Port A Wake up Interrupt
  101. #define GPIO_IWE_PORT_B 0x00000002 // Port B Wake up Interrupt
  102. #define GPIO_IWE_PORT_C 0x00000004 // Port C Wake up Interrupt
  103. #define GPIO_IWE_PORT_D 0x00000008 // Port D Wake up Interrupt
  104. #define GPIO_IWE_USB 0x00000010 // USB Wake up Interrupt
  105. #define GPIO_IWE_SM_TIMER 0x00000020 // SM Timer Wake up Interrupt
  106. //*****************************************************************************
  107. //
  108. // Prototypes for the APIs.
  109. //
  110. //*****************************************************************************
  111. extern void GPIODirModeSet(uint32_t ui32Port, uint8_t ui8Pins,
  112. uint32_t ui32PinIO);
  113. extern uint32_t GPIODirModeGet(uint32_t ui32Port, uint8_t ui8Pin);
  114. extern uint32_t GPIOGetIntNumber(uint32_t ui32Port);
  115. extern void GPIOIntTypeSet(uint32_t ui32Port, uint8_t ui8Pins,
  116. uint32_t ui32IntType);
  117. extern uint32_t GPIOIntTypeGet(uint32_t ui32Port, uint8_t ui8Pin);
  118. extern void GPIOPinIntEnable(uint32_t ui32Port, uint8_t ui8Pins);
  119. extern void GPIOPinIntDisable(uint32_t ui32Port, uint8_t ui8Pins);
  120. extern uint32_t GPIOPinIntStatus(uint32_t ui32Port, bool bMasked);
  121. extern void GPIOPinIntClear(uint32_t ui32Port, uint8_t ui8Pins);
  122. extern void GPIOPortIntRegister(uint32_t ui32Port,
  123. void (*pfnHandler)(void));
  124. extern void GPIOPortIntUnregister(uint32_t ui32Port);
  125. extern uint32_t GPIOPinRead(uint32_t ui32Port, uint8_t ui8Pins);
  126. extern void GPIOPinWrite(uint32_t ui32Port, uint8_t ui8Pins,
  127. uint8_t ui8Val);
  128. extern void GPIOPinTypeGPIOInput(uint32_t ui32Port, uint8_t ui8Pins);
  129. extern void GPIOPinTypeGPIOOutput(uint32_t ui32Port, uint8_t ui8Pins);
  130. extern void GPIOPinTypeI2C(uint32_t ui32Port, uint8_t ui8Pins);
  131. extern void GPIOPinTypeSSI(uint32_t ui32Port, uint8_t ui8Pins);
  132. extern void GPIOPinTypeTimer(uint32_t ui32Port, uint8_t ui8Pins);
  133. extern void GPIOPinTypeUARTInput(uint32_t ui32Port, uint8_t ui8Pins);
  134. extern void GPIOPinTypeUARTOutput(uint32_t ui32Port, uint8_t ui8Pins);
  135. extern void GPIOPowIntEnable(uint32_t ui32Port, uint8_t ui8Pins);
  136. extern void GPIOPowIntDisable(uint32_t ui32Port, uint8_t ui8Pins);
  137. extern void GPIOPowIntTypeSet(uint32_t ui32Port, uint8_t ui8Pins,
  138. uint32_t ui32IntType);
  139. extern uint32_t GPIOPowIntTypeGet(uint32_t ui32Port,
  140. uint8_t ui8Pin);
  141. extern uint32_t GPIOPowIntStatus(uint32_t ui32Port, bool bMasked);
  142. extern void GPIOPowIntClear(uint32_t ui32Port, uint8_t ui8Pins);
  143. extern void GPIOIntWakeupEnable(uint32_t ui32Config);
  144. extern void GPIOIntWakeupDisable(uint32_t ui32Config);
  145. //*****************************************************************************
  146. //
  147. // Mark the end of the C bindings section for C++ compilers.
  148. //
  149. //*****************************************************************************
  150. #ifdef __cplusplus
  151. }
  152. #endif
  153. #endif // __GPIO_H__