fsl_tsc.c 7.6 KB

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  1. /*
  2. * Copyright (c) 2016, Freescale Semiconductor, Inc.
  3. * Copyright 2016-2017 NXP
  4. *
  5. * Redistribution and use in source and binary forms, with or without modification,
  6. * are permitted provided that the following conditions are met:
  7. *
  8. * o Redistributions of source code must retain the above copyright notice, this list
  9. * of conditions and the following disclaimer.
  10. *
  11. * o Redistributions in binary form must reproduce the above copyright notice, this
  12. * list of conditions and the following disclaimer in the documentation and/or
  13. * other materials provided with the distribution.
  14. *
  15. * o Neither the name of the copyright holder nor the names of its
  16. * contributors may be used to endorse or promote products derived from this
  17. * software without specific prior written permission.
  18. *
  19. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  20. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  21. * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  22. * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
  23. * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  24. * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  25. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  26. * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  28. * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29. */
  30. #include "fsl_tsc.h"
  31. /*******************************************************************************
  32. * Prototypes
  33. ******************************************************************************/
  34. /*!
  35. * @brief Get instance number for TSC module.
  36. *
  37. * @param base TSC peripheral base address
  38. */
  39. static uint32_t TSC_GetInstance(TSC_Type *base);
  40. /*******************************************************************************
  41. * Variables
  42. ******************************************************************************/
  43. /*! @brief Pointers to TSC bases for each instance. */
  44. static TSC_Type *const s_tscBases[] = TSC_BASE_PTRS;
  45. /*! @brief Pointers to ADC clocks for each instance. */
  46. static const clock_ip_name_t s_tscClocks[] = TSC_CLOCKS;
  47. /*******************************************************************************
  48. * Code
  49. ******************************************************************************/
  50. static uint32_t TSC_GetInstance(TSC_Type *base)
  51. {
  52. uint32_t instance;
  53. /* Find the instance index from base address mappings. */
  54. for (instance = 0; instance < ARRAY_SIZE(s_tscBases); instance++)
  55. {
  56. if (s_tscBases[instance] == base)
  57. {
  58. break;
  59. }
  60. }
  61. assert(instance < ARRAY_SIZE(s_tscBases));
  62. return instance;
  63. }
  64. void TSC_Init(TSC_Type *base, const tsc_config_t *config)
  65. {
  66. assert(NULL != config);
  67. assert(config->measureDelayTime <= 0xFFFFFFU);
  68. uint32_t tmp32;
  69. #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
  70. /* Enable the TSC clock. */
  71. CLOCK_EnableClock(s_tscClocks[TSC_GetInstance(base)]);
  72. #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
  73. /* Configure TSC_BASIC_SETTING register. */
  74. tmp32 = TSC_BASIC_SETTING_MEASURE_DELAY_TIME(config->measureDelayTime) |
  75. TSC_BASIC_SETTING__4_5_WIRE(config->detectionMode);
  76. if (config->enableAutoMeasure)
  77. {
  78. tmp32 |= TSC_BASIC_SETTING_AUTO_MEASURE_MASK;
  79. }
  80. base->BASIC_SETTING = tmp32;
  81. /* Configure TSC_PS_INPUT_BUFFER_ADDR register. */
  82. base->PS_INPUT_BUFFER_ADDR = TSC_PS_INPUT_BUFFER_ADDR_PRE_CHARGE_TIME(config->prechargeTime);
  83. }
  84. void TSC_Deinit(TSC_Type *base)
  85. {
  86. #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
  87. /* Disable the TSC clcok. */
  88. CLOCK_DisableClock(s_tscClocks[TSC_GetInstance(base)]);
  89. #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
  90. }
  91. void TSC_GetDefaultConfig(tsc_config_t *config)
  92. {
  93. config->enableAutoMeasure = false;
  94. config->measureDelayTime = 0xFFFFU;
  95. config->prechargeTime = 0xFFFFU;
  96. config->detectionMode = kTSC_Detection4WireMode;
  97. }
  98. uint32_t TSC_GetMeasureValue(TSC_Type *base, tsc_corrdinate_value_selection_t selection)
  99. {
  100. uint32_t tmp32 = 0U;
  101. if (selection == kTSC_XCoordinateValueSelection)
  102. {
  103. tmp32 = ((base->MEASEURE_VALUE) & TSC_MEASEURE_VALUE_X_VALUE_MASK) >> TSC_MEASEURE_VALUE_X_VALUE_SHIFT;
  104. }
  105. else if (selection == kTSC_YCoordinateValueSelection)
  106. {
  107. tmp32 = ((base->MEASEURE_VALUE) & TSC_MEASEURE_VALUE_Y_VALUE_MASK) >> TSC_MEASEURE_VALUE_Y_VALUE_SHIFT;
  108. }
  109. else
  110. {
  111. }
  112. return tmp32;
  113. }
  114. void TSC_DebugTriggerSignalToADC(TSC_Type *base, tsc_trigger_signal_t hwts, bool enable)
  115. {
  116. if (enable)
  117. {
  118. /* TSC_DEBUG_MODE_EXT_HWTS field should be writed before writing TSC_DEBUG_MODE_TRIGGER field.
  119. If the two fields are writed at the same time, the trigger couldn't work as expect. */
  120. base->DEBUG_MODE &= ~TSC_DEBUG_MODE_EXT_HWTS_MASK;
  121. base->DEBUG_MODE |= TSC_DEBUG_MODE_EXT_HWTS(hwts);
  122. base->DEBUG_MODE |= TSC_DEBUG_MODE_TRIGGER_MASK;
  123. }
  124. else
  125. {
  126. base->DEBUG_MODE &= ~TSC_DEBUG_MODE_TRIGGER_MASK;
  127. }
  128. }
  129. void TSC_DebugEnableDetection(TSC_Type *base, tsc_detection_mode_t detectionMode, bool enable)
  130. {
  131. if (detectionMode == kTSC_Detection4WireMode)
  132. {
  133. if (enable)
  134. {
  135. base->DEBUG_MODE2 |= TSC_DEBUG_MODE2_DETECT_ENABLE_FOUR_WIRE_MASK;
  136. }
  137. else
  138. {
  139. base->DEBUG_MODE2 &= ~TSC_DEBUG_MODE2_DETECT_ENABLE_FOUR_WIRE_MASK;
  140. }
  141. }
  142. else if (detectionMode == kTSC_Detection5WireMode)
  143. {
  144. if (enable)
  145. {
  146. base->DEBUG_MODE2 |= TSC_DEBUG_MODE2_DETECT_ENABLE_FIVE_WIRE_MASK;
  147. }
  148. else
  149. {
  150. base->DEBUG_MODE2 &= ~TSC_DEBUG_MODE2_DETECT_ENABLE_FIVE_WIRE_MASK;
  151. }
  152. }
  153. else
  154. {
  155. }
  156. }
  157. void TSC_DebugSetPortMode(TSC_Type *base, tsc_port_source_t port, tsc_port_mode_t mode)
  158. {
  159. uint32_t tmp32;
  160. tmp32 = base->DEBUG_MODE2;
  161. switch (port)
  162. {
  163. case kTSC_WiperPortSource:
  164. tmp32 &= ~(TSC_DEBUG_MODE2_WIPER_200K_PULL_UP_MASK | TSC_DEBUG_MODE2_WIPER_PULL_UP_MASK |
  165. TSC_DEBUG_MODE2_WIPER_PULL_DOWN_MASK);
  166. tmp32 |= ((uint32_t)mode << TSC_DEBUG_MODE2_WIPER_PULL_DOWN_SHIFT);
  167. break;
  168. case kTSC_YnlrPortSource:
  169. tmp32 &= ~(TSC_DEBUG_MODE2_YNLR_200K_PULL_UP_MASK | TSC_DEBUG_MODE2_YNLR_PULL_UP_MASK |
  170. TSC_DEBUG_MODE2_YNLR_PULL_DOWN_MASK);
  171. tmp32 |= ((uint32_t)mode << TSC_DEBUG_MODE2_YNLR_PULL_DOWN_SHIFT);
  172. break;
  173. case kTSC_YpllPortSource:
  174. tmp32 &= ~(TSC_DEBUG_MODE2_YPLL_200K_PULL_UP_MASK | TSC_DEBUG_MODE2_YPLL_PULL_UP_MASK |
  175. TSC_DEBUG_MODE2_YPLL_PULL_DOWN_MASK);
  176. tmp32 |= ((uint32_t)mode << TSC_DEBUG_MODE2_YPLL_PULL_DOWN_SHIFT);
  177. break;
  178. case kTSC_XnurPortSource:
  179. tmp32 &= ~(TSC_DEBUG_MODE2_XNUR_200K_PULL_UP_MASK | TSC_DEBUG_MODE2_XNUR_PULL_UP_MASK |
  180. TSC_DEBUG_MODE2_XNUR_PULL_DOWN_MASK);
  181. tmp32 |= ((uint32_t)mode << TSC_DEBUG_MODE2_XNUR_PULL_DOWN_SHIFT);
  182. break;
  183. case kTSC_XpulPortSource:
  184. tmp32 &= ~(TSC_DEBUG_MODE2_XPUL_200K_PULL_UP_MASK | TSC_DEBUG_MODE2_XPUL_PULL_UP_MASK |
  185. TSC_DEBUG_MODE2_XPUL_PULL_DOWN_MASK);
  186. tmp32 |= ((uint32_t)mode << TSC_DEBUG_MODE2_XPUL_PULL_DOWN_SHIFT);
  187. break;
  188. default:
  189. break;
  190. }
  191. base->DEBUG_MODE2 = tmp32;
  192. }