1 /** 2 * @file wut.h 3 * @brief Wakeup Timer (WUT) function prototypes and data types. 4 */ 5 6 /****************************************************************************** 7 * 8 * Copyright (C) 2022-2023 Maxim Integrated Products, Inc. (now owned by 9 * Analog Devices, Inc.), 10 * Copyright (C) 2023-2024 Analog Devices, Inc. 11 * 12 * Licensed under the Apache License, Version 2.0 (the "License"); 13 * you may not use this file except in compliance with the License. 14 * You may obtain a copy of the License at 15 * 16 * http://www.apache.org/licenses/LICENSE-2.0 17 * 18 * Unless required by applicable law or agreed to in writing, software 19 * distributed under the License is distributed on an "AS IS" BASIS, 20 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 21 * See the License for the specific language governing permissions and 22 * limitations under the License. 23 * 24 ******************************************************************************/ 25 26 /* Define to prevent redundant inclusion */ 27 #ifndef LIBRARIES_PERIPHDRIVERS_INCLUDE_MAX32665_WUT_H_ 28 #define LIBRARIES_PERIPHDRIVERS_INCLUDE_MAX32665_WUT_H_ 29 30 /* **** Includes **** */ 31 #include "mxc_device.h" 32 #include "wut_regs.h" 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 /** 39 * @defgroup wut Wakeup Timer (WUT) 40 * @ingroup periphlibs 41 * @{ 42 */ 43 44 /** 45 * @brief Wakeup Timer prescaler values 46 */ 47 typedef enum { 48 MXC_WUT_PRES_1 = MXC_S_WUT_CTRL_PRES_DIV1, /// Divide input clock by 1 49 MXC_WUT_PRES_2 = MXC_S_WUT_CTRL_PRES_DIV2, /// Divide input clock by 2 50 MXC_WUT_PRES_4 = MXC_S_WUT_CTRL_PRES_DIV4, /// Divide input clock by 4 51 MXC_WUT_PRES_8 = MXC_S_WUT_CTRL_PRES_DIV8, /// Divide input clock by 8 52 MXC_WUT_PRES_16 = MXC_S_WUT_CTRL_PRES_DIV16, /// Divide input clock by 16 53 MXC_WUT_PRES_32 = MXC_S_WUT_CTRL_PRES_DIV32, /// Divide input clock by 32 54 MXC_WUT_PRES_64 = MXC_S_WUT_CTRL_PRES_DIV64, /// Divide input clock by 64 55 MXC_WUT_PRES_128 = MXC_S_WUT_CTRL_PRES_DIV128, /// Divide input clock by 128 56 MXC_WUT_PRES_256 = MXC_F_WUT_CTRL_PRES3 | 57 MXC_S_WUT_CTRL_PRES_DIV1, /// Divide input clock by 256 58 MXC_WUT_PRES_512 = MXC_F_WUT_CTRL_PRES3 | 59 MXC_S_WUT_CTRL_PRES_DIV4, /// Divide input clock by 512 60 MXC_WUT_PRES_1024 = MXC_F_WUT_CTRL_PRES3 | 61 MXC_S_WUT_CTRL_PRES_DIV8, /// Divide input clock by 1024 62 MXC_WUT_PRES_2048 = MXC_F_WUT_CTRL_PRES3 | 63 MXC_S_WUT_CTRL_PRES_DIV16, /// Divide input clock by 2048 64 MXC_WUT_PRES_4096 = MXC_F_WUT_CTRL_PRES3 | 65 MXC_S_WUT_CTRL_PRES_DIV32 /// Divide input clock by 4096 66 } mxc_wut_pres_t; 67 68 /** 69 * @brief Wakeup Timer modes 70 */ 71 typedef enum { 72 MXC_WUT_MODE_ONESHOT = MXC_V_WUT_CTRL_TMODE_ONESHOT, /// Wakeup Timer Mode ONESHOT 73 MXC_WUT_MODE_CONTINUOUS = MXC_V_WUT_CTRL_TMODE_CONTINUOUS, /// Wakeup Timer Mode CONTINUOUS 74 MXC_WUT_MODE_COUNTER = MXC_V_WUT_CTRL_TMODE_COUNTER, /// Wakeup Timer Mode COUNTER 75 MXC_WUT_MODE_PWM = MXC_V_WUT_CTRL_TMODE_PWM, /// Wakeup Timer Mode PWM 76 MXC_WUT_MODE_CAPTURE = MXC_V_WUT_CTRL_TMODE_CAPTURE, /// Wakeup Timer Mode CAPTURE 77 MXC_WUT_MODE_COMPARE = MXC_V_WUT_CTRL_TMODE_COMPARE, /// Wakeup Timer Mode COMPARE 78 MXC_WUT_MODE_GATED = MXC_V_WUT_CTRL_TMODE_GATED, /// Wakeup Timer Mode GATED 79 MXC_WUT_MODE_CAPTURE_COMPARE = 80 MXC_V_WUT_CTRL_TMODE_CAPTURECOMPARE /// Wakeup Timer Mode CAPTURECOMPARE 81 } mxc_wut_mode_t; 82 83 /** 84 * @brief Wakeup Timer units of time enumeration 85 */ 86 typedef enum { 87 MXC_WUT_UNIT_NANOSEC = 0, /**< Nanosecond Unit Indicator. */ 88 MXC_WUT_UNIT_MICROSEC, /**< Microsecond Unit Indicator. */ 89 MXC_WUT_UNIT_MILLISEC, /**< Millisecond Unit Indicator. */ 90 MXC_WUT_UNIT_SEC /**< Second Unit Indicator. */ 91 } mxc_wut_unit_t; 92 93 /** 94 * @brief Wakeup Timer Configuration 95 */ 96 typedef struct { 97 mxc_wut_mode_t mode; /// Desired timer mode 98 uint32_t cmp_cnt; /// Compare register value in timer ticks 99 } mxc_wut_cfg_t; 100 101 /** 102 * @brief The callback routine used by the MXC_WUT_TrimCrystalAsync() 103 * function to indicate the transaction has completed. 104 * 105 * @param result Error code. 106 */ 107 typedef void (*mxc_wut_complete_cb_t)(int result); 108 109 /* **** Definitions **** */ 110 111 /* **** Function Prototypes **** */ 112 113 /** 114 * @brief Initialize timer module clock. 115 * @param pres Prescaler value. 116 */ 117 void MXC_WUT_Init(mxc_wut_pres_t pres); 118 119 /** 120 * @brief Shutdown timer module clock. 121 */ 122 void MXC_WUT_Shutdown(void); 123 124 /** 125 * @brief Enable the timer. 126 */ 127 void MXC_WUT_Enable(void); 128 129 /** 130 * @brief Disable the timer. 131 */ 132 void MXC_WUT_Disable(void); 133 134 /** 135 * @brief Configure the timer. 136 * @param cfg Pointer to timer configuration struct. 137 */ 138 void MXC_WUT_Config(const mxc_wut_cfg_t *cfg); 139 140 /** 141 * @brief Get the timer compare count. 142 * @return Returns the current compare count. 143 */ 144 uint32_t MXC_WUT_GetCompare(void); 145 146 /** 147 * @brief Get the timer capture count. 148 * @return Returns the most recent capture count. 149 */ 150 uint32_t MXC_WUT_GetCapture(void); 151 152 /** 153 * @brief Get the timer count. 154 * @return Returns the current count. 155 */ 156 uint32_t MXC_WUT_GetCount(void); 157 158 /** 159 * @brief Clear the timer interrupt. 160 */ 161 void MXC_WUT_IntClear(void); 162 163 /** 164 * @brief Get the timer interrupt status. 165 * @return Returns the interrupt status. 1 if interrupt has occurred. 166 */ 167 uint32_t MXC_WUT_IntStatus(void); 168 169 /** 170 * @brief Set the timer compare count. 171 * @param cmp_cnt New compare count. 172 * @note This function does not protect against output glitches in PWM mode. 173 * Use MXC_WUT_PWMSetPeriod when in PWM mode. 174 */ 175 void MXC_WUT_SetCompare(uint32_t cmp_cnt); 176 177 /** 178 * @brief Set the timer count. 179 * @param cnt New count. 180 */ 181 void MXC_WUT_SetCount(uint32_t cnt); 182 183 /** 184 * @brief Convert real time to timer ticks. 185 * @param time Number of units of time. 186 * @param units Which units of time you want to convert. 187 * @param ticks Pointer to store the number of ticks calculated. 188 * @return #E_NO_ERROR If everything is successful. 189 * @return @ref MXC_Error_Codes If function is unsuccessful. 190 */ 191 int MXC_WUT_GetTicks(uint32_t time, mxc_wut_unit_t units, uint32_t *ticks); 192 193 /** 194 * @brief Convert timer ticks to real time. 195 * @param ticks Number of ticks. 196 * @param time Pointer to store number of units of time. 197 * @param units Pointer to store the units that time represents. 198 * @return #E_NO_ERROR If everything is successful. 199 * @return @ref MXC_Error_Codes If function is unsuccessful. 200 */ 201 int MXC_WUT_GetTime(uint32_t ticks, uint32_t *time, mxc_wut_unit_t *units); 202 203 /** 204 * @brief Wait for an edge of the WUT count register. 205 */ 206 void MXC_WUT_Edge(void); 207 208 /** 209 * @brief Store the count and snapshot values. 210 */ 211 void MXC_WUT_Store(void); 212 213 /** 214 * @brief Restore the DBB clock with the stored count and snapshot values. 215 * @param dbbFreq Frequency of DBB clock. 216 */ 217 void MXC_WUT_RestoreBBClock(uint32_t dbbFreq); 218 219 /** 220 * @brief Get the difference between the stored counter value 221 * and the current counter value. 222 * @return Returns the current counter value - stored counter value. 223 */ 224 uint32_t MXC_WUT_GetSleepTicks(void); 225 226 /** 227 * @brief Delays for the given number of milliseconds. 228 * @param waitMs Number of milliseconds to wait. 229 */ 230 void MXC_WUT_Delay_MS(uint32_t waitMs); 231 232 /** 233 * @brief Trim the 32 kHz crystal load settings, blocks until complete. 234 * @details This procedure uses the WUT and the BLE DBB, driven by the 32 MHz crystal, 235 * to trim the load settings of the 32 kHz crystal. This procedure will only 236 * work if the BLE DBB is initialized and running. 237 * 238 * @return #E_NO_ERROR If everything is successful. 239 */ 240 int MXC_WUT_TrimCrystal(void); 241 242 /** 243 * @brief Trim the 32 kHz crystal load settings, non-blocking interrupt based. 244 * @details This procedure uses the WUT and the BLE DBB, driven by the 32 MHz crystal, 245 * to trim the load settings of the 32 kHz crystal. This procedure will only 246 * work if the BLE DBB is initialized and running. 247 * 248 * @param cb Callback for when the trim is complete. 249 * @return #E_NO_ERROR If everything is successful. 250 */ 251 int MXC_WUT_TrimCrystalAsync(mxc_wut_complete_cb_t cb); 252 253 /** 254 * @brief Check to see if the trim procedure is ongoing. 255 * @details Must leave the 32 MHz clock and BLE DBB running while the trim procedure is pending. 256 * @return #E_NO_ERROR If trim is complete, E_BUSY if trim procedure is ongoing. 257 */ 258 int MXC_WUT_TrimPending(void); 259 260 /** 261 * @brief Interrupt handler for trim procedure. 262 * 263 * @return #E_NO_ERROR If trim is complete, E_BUSY if trim procedure is ongoing. 264 */ 265 int MXC_WUT_Handler(void); 266 267 /**@} end of group wut */ 268 269 #ifdef __cplusplus 270 } 271 #endif 272 273 #endif // LIBRARIES_PERIPHDRIVERS_INCLUDE_MAX32665_WUT_H_ 274
