Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_K66F/drivers/fsl_crc.c@144:ef7eb2e8f9f7, 2016-09-02 (annotated)

Committer:
<>
Date:
Fri Sep 02 15:07:44 2016 +0100
Revision:
144:ef7eb2e8f9f7
This updates the lib to the mbed lib v125

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /*
<> 144:ef7eb2e8f9f7 2 * Copyright (c) 2015, Freescale Semiconductor, Inc.
<> 144:ef7eb2e8f9f7 3 * All rights reserved.
<> 144:ef7eb2e8f9f7 4 *
<> 144:ef7eb2e8f9f7 5 * Redistribution and use in source and binary forms, with or without modification,
<> 144:ef7eb2e8f9f7 6 * are permitted provided that the following conditions are met:
<> 144:ef7eb2e8f9f7 7 *
<> 144:ef7eb2e8f9f7 8 * o Redistributions of source code must retain the above copyright notice, this list
<> 144:ef7eb2e8f9f7 9 * of conditions and the following disclaimer.
<> 144:ef7eb2e8f9f7 10 *
<> 144:ef7eb2e8f9f7 11 * o Redistributions in binary form must reproduce the above copyright notice, this
<> 144:ef7eb2e8f9f7 12 * list of conditions and the following disclaimer in the documentation and/or
<> 144:ef7eb2e8f9f7 13 * other materials provided with the distribution.
<> 144:ef7eb2e8f9f7 14 *
<> 144:ef7eb2e8f9f7 15 * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
<> 144:ef7eb2e8f9f7 16 * contributors may be used to endorse or promote products derived from this
<> 144:ef7eb2e8f9f7 17 * software without specific prior written permission.
<> 144:ef7eb2e8f9f7 18 *
<> 144:ef7eb2e8f9f7 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
<> 144:ef7eb2e8f9f7 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
<> 144:ef7eb2e8f9f7 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
<> 144:ef7eb2e8f9f7 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
<> 144:ef7eb2e8f9f7 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
<> 144:ef7eb2e8f9f7 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
<> 144:ef7eb2e8f9f7 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
<> 144:ef7eb2e8f9f7 26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
<> 144:ef7eb2e8f9f7 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
<> 144:ef7eb2e8f9f7 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
<> 144:ef7eb2e8f9f7 29 */
<> 144:ef7eb2e8f9f7 30 #include "fsl_crc.h"
<> 144:ef7eb2e8f9f7 31
<> 144:ef7eb2e8f9f7 32 /*******************************************************************************
<> 144:ef7eb2e8f9f7 33 * Definitions
<> 144:ef7eb2e8f9f7 34 ******************************************************************************/
<> 144:ef7eb2e8f9f7 35
<> 144:ef7eb2e8f9f7 36 #if defined(CRC_DRIVER_USE_CRC16_CCIT_FALSE_AS_DEFAULT) && CRC_DRIVER_USE_CRC16_CCIT_FALSE_AS_DEFAULT
<> 144:ef7eb2e8f9f7 37 /* @brief Default user configuration structure for CRC-16-CCITT */
<> 144:ef7eb2e8f9f7 38 #define CRC_DRIVER_DEFAULT_POLYNOMIAL 0x1021U
<> 144:ef7eb2e8f9f7 39 /*< CRC-16-CCIT polynomial x**16 + x**12 + x**5 + x**0 */
<> 144:ef7eb2e8f9f7 40 #define CRC_DRIVER_DEFAULT_SEED 0xFFFFU
<> 144:ef7eb2e8f9f7 41 /*< Default initial checksum */
<> 144:ef7eb2e8f9f7 42 #define CRC_DRIVER_DEFAULT_REFLECT_IN false
<> 144:ef7eb2e8f9f7 43 /*< Default is no transpose */
<> 144:ef7eb2e8f9f7 44 #define CRC_DRIVER_DEFAULT_REFLECT_OUT false
<> 144:ef7eb2e8f9f7 45 /*< Default is transpose bytes */
<> 144:ef7eb2e8f9f7 46 #define CRC_DRIVER_DEFAULT_COMPLEMENT_CHECKSUM false
<> 144:ef7eb2e8f9f7 47 /*< Default is without complement of CRC data register read data */
<> 144:ef7eb2e8f9f7 48 #define CRC_DRIVER_DEFAULT_CRC_BITS kCrcBits16
<> 144:ef7eb2e8f9f7 49 /*< Default is 16-bit CRC protocol */
<> 144:ef7eb2e8f9f7 50 #define CRC_DRIVER_DEFAULT_CRC_RESULT kCrcFinalChecksum
<> 144:ef7eb2e8f9f7 51 /*< Default is resutl type is final checksum */
<> 144:ef7eb2e8f9f7 52 #endif /* CRC_DRIVER_USE_CRC16_CCIT_FALSE_AS_DEFAULT */
<> 144:ef7eb2e8f9f7 53
<> 144:ef7eb2e8f9f7 54 /*! @brief CRC type of transpose of read write data */
<> 144:ef7eb2e8f9f7 55 typedef enum _crc_transpose_type
<> 144:ef7eb2e8f9f7 56 {
<> 144:ef7eb2e8f9f7 57 kCrcTransposeNone = 0U, /*! No transpose */
<> 144:ef7eb2e8f9f7 58 kCrcTransposeBits = 1U, /*! Tranpose bits in bytes */
<> 144:ef7eb2e8f9f7 59 kCrcTransposeBitsAndBytes = 2U, /*! Transpose bytes and bits in bytes */
<> 144:ef7eb2e8f9f7 60 kCrcTransposeBytes = 3U, /*! Transpose bytes */
<> 144:ef7eb2e8f9f7 61 } crc_transpose_type_t;
<> 144:ef7eb2e8f9f7 62
<> 144:ef7eb2e8f9f7 63 /*!
<> 144:ef7eb2e8f9f7 64 * @brief CRC module configuration.
<> 144:ef7eb2e8f9f7 65 *
<> 144:ef7eb2e8f9f7 66 * This structure holds the configuration for the CRC module.
<> 144:ef7eb2e8f9f7 67 */
<> 144:ef7eb2e8f9f7 68 typedef struct _crc_module_config
<> 144:ef7eb2e8f9f7 69 {
<> 144:ef7eb2e8f9f7 70 uint32_t polynomial; /*!< CRC Polynomial, MSBit first.@n
<> 144:ef7eb2e8f9f7 71 Example polynomial: 0x1021 = 1_0000_0010_0001 = x^12+x^5+1 */
<> 144:ef7eb2e8f9f7 72 uint32_t seed; /*!< Starting checksum value */
<> 144:ef7eb2e8f9f7 73 crc_transpose_type_t readTranspose; /*!< Type of transpose when reading CRC result. */
<> 144:ef7eb2e8f9f7 74 crc_transpose_type_t writeTranspose; /*!< Type of transpose when writing CRC input data. */
<> 144:ef7eb2e8f9f7 75 bool complementChecksum; /*!< True if the result shall be complement of the actual checksum. */
<> 144:ef7eb2e8f9f7 76 crc_bits_t crcBits; /*!< Selects 16- or 32- bit CRC protocol. */
<> 144:ef7eb2e8f9f7 77 } crc_module_config_t;
<> 144:ef7eb2e8f9f7 78
<> 144:ef7eb2e8f9f7 79 /*******************************************************************************
<> 144:ef7eb2e8f9f7 80 * Code
<> 144:ef7eb2e8f9f7 81 ******************************************************************************/
<> 144:ef7eb2e8f9f7 82
<> 144:ef7eb2e8f9f7 83 /*!
<> 144:ef7eb2e8f9f7 84 * @brief Returns transpose type for CRC protocol reflect in parameter.
<> 144:ef7eb2e8f9f7 85 *
<> 144:ef7eb2e8f9f7 86 * This functions helps to set writeTranspose member of crc_config_t structure. Reflect in is CRC protocol parameter.
<> 144:ef7eb2e8f9f7 87 *
<> 144:ef7eb2e8f9f7 88 * @param enable True or false for the selected CRC protocol Reflect In (refin) parameter.
<> 144:ef7eb2e8f9f7 89 */
<> 144:ef7eb2e8f9f7 90 static inline crc_transpose_type_t crc_GetTransposeTypeFromReflectIn(bool enable)
<> 144:ef7eb2e8f9f7 91 {
<> 144:ef7eb2e8f9f7 92 return ((enable) ? kCrcTransposeBitsAndBytes : kCrcTransposeBytes);
<> 144:ef7eb2e8f9f7 93 }
<> 144:ef7eb2e8f9f7 94
<> 144:ef7eb2e8f9f7 95 /*!
<> 144:ef7eb2e8f9f7 96 * @brief Returns transpose type for CRC protocol reflect out parameter.
<> 144:ef7eb2e8f9f7 97 *
<> 144:ef7eb2e8f9f7 98 * This functions helps to set readTranspose member of crc_config_t structure. Reflect out is CRC protocol parameter.
<> 144:ef7eb2e8f9f7 99 *
<> 144:ef7eb2e8f9f7 100 * @param enable True or false for the selected CRC protocol Reflect Out (refout) parameter.
<> 144:ef7eb2e8f9f7 101 */
<> 144:ef7eb2e8f9f7 102 static inline crc_transpose_type_t crc_GetTransposeTypeFromReflectOut(bool enable)
<> 144:ef7eb2e8f9f7 103 {
<> 144:ef7eb2e8f9f7 104 return ((enable) ? kCrcTransposeBitsAndBytes : kCrcTransposeNone);
<> 144:ef7eb2e8f9f7 105 }
<> 144:ef7eb2e8f9f7 106
<> 144:ef7eb2e8f9f7 107 /*!
<> 144:ef7eb2e8f9f7 108 * @brief Starts checksum computation.
<> 144:ef7eb2e8f9f7 109 *
<> 144:ef7eb2e8f9f7 110 * Configures the CRC module for the specified CRC protocol. @n
<> 144:ef7eb2e8f9f7 111 * Starts the checksum computation by writing the seed value
<> 144:ef7eb2e8f9f7 112 *
<> 144:ef7eb2e8f9f7 113 * @param base CRC peripheral address.
<> 144:ef7eb2e8f9f7 114 * @param config Pointer to protocol configuration structure.
<> 144:ef7eb2e8f9f7 115 */
<> 144:ef7eb2e8f9f7 116 static void crc_ConfigureAndStart(CRC_Type *base, const crc_module_config_t *config)
<> 144:ef7eb2e8f9f7 117 {
<> 144:ef7eb2e8f9f7 118 uint32_t crcControl;
<> 144:ef7eb2e8f9f7 119
<> 144:ef7eb2e8f9f7 120 /* pre-compute value for CRC control registger based on user configuraton without WAS field */
<> 144:ef7eb2e8f9f7 121 crcControl = 0 | CRC_CTRL_TOT(config->writeTranspose) | CRC_CTRL_TOTR(config->readTranspose) |
<> 144:ef7eb2e8f9f7 122 CRC_CTRL_FXOR(config->complementChecksum) | CRC_CTRL_TCRC(config->crcBits);
<> 144:ef7eb2e8f9f7 123
<> 144:ef7eb2e8f9f7 124 /* make sure the control register is clear - WAS is deasserted, and protocol is set */
<> 144:ef7eb2e8f9f7 125 base->CTRL = crcControl;
<> 144:ef7eb2e8f9f7 126
<> 144:ef7eb2e8f9f7 127 /* write polynomial register */
<> 144:ef7eb2e8f9f7 128 base->GPOLY = config->polynomial;
<> 144:ef7eb2e8f9f7 129
<> 144:ef7eb2e8f9f7 130 /* write pre-computed control register value along with WAS to start checksum computation */
<> 144:ef7eb2e8f9f7 131 base->CTRL = crcControl | CRC_CTRL_WAS(true);
<> 144:ef7eb2e8f9f7 132
<> 144:ef7eb2e8f9f7 133 /* write seed (initial checksum) */
<> 144:ef7eb2e8f9f7 134 base->DATA = config->seed;
<> 144:ef7eb2e8f9f7 135
<> 144:ef7eb2e8f9f7 136 /* deassert WAS by writing pre-computed CRC control register value */
<> 144:ef7eb2e8f9f7 137 base->CTRL = crcControl;
<> 144:ef7eb2e8f9f7 138 }
<> 144:ef7eb2e8f9f7 139
<> 144:ef7eb2e8f9f7 140 /*!
<> 144:ef7eb2e8f9f7 141 * @brief Starts final checksum computation.
<> 144:ef7eb2e8f9f7 142 *
<> 144:ef7eb2e8f9f7 143 * Configures the CRC module for the specified CRC protocol. @n
<> 144:ef7eb2e8f9f7 144 * Starts final checksum computation by writing the seed value.
<> 144:ef7eb2e8f9f7 145 * @note CRC_Get16bitResult() or CRC_Get32bitResult() return final checksum
<> 144:ef7eb2e8f9f7 146 * (output reflection and xor functions are applied).
<> 144:ef7eb2e8f9f7 147 *
<> 144:ef7eb2e8f9f7 148 * @param base CRC peripheral address.
<> 144:ef7eb2e8f9f7 149 * @param protocolConfig Pointer to protocol configuration structure.
<> 144:ef7eb2e8f9f7 150 */
<> 144:ef7eb2e8f9f7 151 static void crc_SetProtocolConfig(CRC_Type *base, const crc_config_t *protocolConfig)
<> 144:ef7eb2e8f9f7 152 {
<> 144:ef7eb2e8f9f7 153 crc_module_config_t moduleConfig;
<> 144:ef7eb2e8f9f7 154 /* convert protocol to CRC peripheral module configuration, prepare for final checksum */
<> 144:ef7eb2e8f9f7 155 moduleConfig.polynomial = protocolConfig->polynomial;
<> 144:ef7eb2e8f9f7 156 moduleConfig.seed = protocolConfig->seed;
<> 144:ef7eb2e8f9f7 157 moduleConfig.readTranspose = crc_GetTransposeTypeFromReflectOut(protocolConfig->reflectOut);
<> 144:ef7eb2e8f9f7 158 moduleConfig.writeTranspose = crc_GetTransposeTypeFromReflectIn(protocolConfig->reflectIn);
<> 144:ef7eb2e8f9f7 159 moduleConfig.complementChecksum = protocolConfig->complementChecksum;
<> 144:ef7eb2e8f9f7 160 moduleConfig.crcBits = protocolConfig->crcBits;
<> 144:ef7eb2e8f9f7 161
<> 144:ef7eb2e8f9f7 162 crc_ConfigureAndStart(base, &moduleConfig);
<> 144:ef7eb2e8f9f7 163 }
<> 144:ef7eb2e8f9f7 164
<> 144:ef7eb2e8f9f7 165 /*!
<> 144:ef7eb2e8f9f7 166 * @brief Starts intermediate checksum computation.
<> 144:ef7eb2e8f9f7 167 *
<> 144:ef7eb2e8f9f7 168 * Configures the CRC module for the specified CRC protocol. @n
<> 144:ef7eb2e8f9f7 169 * Starts intermediate checksum computation by writing the seed value.
<> 144:ef7eb2e8f9f7 170 * @note CRC_Get16bitResult() or CRC_Get32bitResult() return intermediate checksum (raw data register value).
<> 144:ef7eb2e8f9f7 171 *
<> 144:ef7eb2e8f9f7 172 * @param base CRC peripheral address.
<> 144:ef7eb2e8f9f7 173 * @param protocolConfig Pointer to protocol configuration structure.
<> 144:ef7eb2e8f9f7 174 */
<> 144:ef7eb2e8f9f7 175 static void crc_SetRawProtocolConfig(CRC_Type *base, const crc_config_t *protocolConfig)
<> 144:ef7eb2e8f9f7 176 {
<> 144:ef7eb2e8f9f7 177 crc_module_config_t moduleConfig;
<> 144:ef7eb2e8f9f7 178 /* convert protocol to CRC peripheral module configuration, prepare for intermediate checksum */
<> 144:ef7eb2e8f9f7 179 moduleConfig.polynomial = protocolConfig->polynomial;
<> 144:ef7eb2e8f9f7 180 moduleConfig.seed = protocolConfig->seed;
<> 144:ef7eb2e8f9f7 181 moduleConfig.readTranspose =
<> 144:ef7eb2e8f9f7 182 kCrcTransposeNone; /* intermediate checksum does no transpose of data register read value */
<> 144:ef7eb2e8f9f7 183 moduleConfig.writeTranspose = crc_GetTransposeTypeFromReflectIn(protocolConfig->reflectIn);
<> 144:ef7eb2e8f9f7 184 moduleConfig.complementChecksum = false; /* intermediate checksum does no xor of data register read value */
<> 144:ef7eb2e8f9f7 185 moduleConfig.crcBits = protocolConfig->crcBits;
<> 144:ef7eb2e8f9f7 186
<> 144:ef7eb2e8f9f7 187 crc_ConfigureAndStart(base, &moduleConfig);
<> 144:ef7eb2e8f9f7 188 }
<> 144:ef7eb2e8f9f7 189
<> 144:ef7eb2e8f9f7 190 void CRC_Init(CRC_Type *base, const crc_config_t *config)
<> 144:ef7eb2e8f9f7 191 {
<> 144:ef7eb2e8f9f7 192 /* ungate clock */
<> 144:ef7eb2e8f9f7 193 CLOCK_EnableClock(kCLOCK_Crc0);
<> 144:ef7eb2e8f9f7 194 /* configure CRC module and write the seed */
<> 144:ef7eb2e8f9f7 195 if (config->crcResult == kCrcFinalChecksum)
<> 144:ef7eb2e8f9f7 196 {
<> 144:ef7eb2e8f9f7 197 crc_SetProtocolConfig(base, config);
<> 144:ef7eb2e8f9f7 198 }
<> 144:ef7eb2e8f9f7 199 else
<> 144:ef7eb2e8f9f7 200 {
<> 144:ef7eb2e8f9f7 201 crc_SetRawProtocolConfig(base, config);
<> 144:ef7eb2e8f9f7 202 }
<> 144:ef7eb2e8f9f7 203 }
<> 144:ef7eb2e8f9f7 204
<> 144:ef7eb2e8f9f7 205 void CRC_GetDefaultConfig(crc_config_t *config)
<> 144:ef7eb2e8f9f7 206 {
<> 144:ef7eb2e8f9f7 207 static const crc_config_t crc16ccit = {
<> 144:ef7eb2e8f9f7 208 CRC_DRIVER_DEFAULT_POLYNOMIAL, CRC_DRIVER_DEFAULT_SEED,
<> 144:ef7eb2e8f9f7 209 CRC_DRIVER_DEFAULT_REFLECT_IN, CRC_DRIVER_DEFAULT_REFLECT_OUT,
<> 144:ef7eb2e8f9f7 210 CRC_DRIVER_DEFAULT_COMPLEMENT_CHECKSUM, CRC_DRIVER_DEFAULT_CRC_BITS,
<> 144:ef7eb2e8f9f7 211 CRC_DRIVER_DEFAULT_CRC_RESULT,
<> 144:ef7eb2e8f9f7 212 };
<> 144:ef7eb2e8f9f7 213
<> 144:ef7eb2e8f9f7 214 *config = crc16ccit;
<> 144:ef7eb2e8f9f7 215 }
<> 144:ef7eb2e8f9f7 216
<> 144:ef7eb2e8f9f7 217 void CRC_WriteData(CRC_Type *base, const uint8_t *data, size_t dataSize)
<> 144:ef7eb2e8f9f7 218 {
<> 144:ef7eb2e8f9f7 219 const uint32_t *data32;
<> 144:ef7eb2e8f9f7 220
<> 144:ef7eb2e8f9f7 221 /* 8-bit reads and writes till source address is aligned 4 bytes */
<> 144:ef7eb2e8f9f7 222 while ((dataSize) && ((uint32_t)data & 3U))
<> 144:ef7eb2e8f9f7 223 {
<> 144:ef7eb2e8f9f7 224 base->ACCESS8BIT.DATALL = *data;
<> 144:ef7eb2e8f9f7 225 data++;
<> 144:ef7eb2e8f9f7 226 dataSize--;
<> 144:ef7eb2e8f9f7 227 }
<> 144:ef7eb2e8f9f7 228
<> 144:ef7eb2e8f9f7 229 /* use 32-bit reads and writes as long as possible */
<> 144:ef7eb2e8f9f7 230 data32 = (const uint32_t *)data;
<> 144:ef7eb2e8f9f7 231 while (dataSize >= sizeof(uint32_t))
<> 144:ef7eb2e8f9f7 232 {
<> 144:ef7eb2e8f9f7 233 base->DATA = *data32;
<> 144:ef7eb2e8f9f7 234 data32++;
<> 144:ef7eb2e8f9f7 235 dataSize -= sizeof(uint32_t);
<> 144:ef7eb2e8f9f7 236 }
<> 144:ef7eb2e8f9f7 237
<> 144:ef7eb2e8f9f7 238 data = (const uint8_t *)data32;
<> 144:ef7eb2e8f9f7 239
<> 144:ef7eb2e8f9f7 240 /* 8-bit reads and writes till end of data buffer */
<> 144:ef7eb2e8f9f7 241 while (dataSize)
<> 144:ef7eb2e8f9f7 242 {
<> 144:ef7eb2e8f9f7 243 base->ACCESS8BIT.DATALL = *data;
<> 144:ef7eb2e8f9f7 244 data++;
<> 144:ef7eb2e8f9f7 245 dataSize--;
<> 144:ef7eb2e8f9f7 246 }
<> 144:ef7eb2e8f9f7 247 }
<> 144:ef7eb2e8f9f7 248
<> 144:ef7eb2e8f9f7 249 uint16_t CRC_Get16bitResult(CRC_Type *base)
<> 144:ef7eb2e8f9f7 250 {
<> 144:ef7eb2e8f9f7 251 uint32_t retval;
<> 144:ef7eb2e8f9f7 252 uint32_t totr; /* type of transpose read bitfield */
<> 144:ef7eb2e8f9f7 253
<> 144:ef7eb2e8f9f7 254 retval = base->DATA;
<> 144:ef7eb2e8f9f7 255 totr = (base->CTRL & CRC_CTRL_TOTR_MASK) >> CRC_CTRL_TOTR_SHIFT;
<> 144:ef7eb2e8f9f7 256
<> 144:ef7eb2e8f9f7 257 /* check transpose type to get 16-bit out of 32-bit register */
<> 144:ef7eb2e8f9f7 258 if (totr >= 2U)
<> 144:ef7eb2e8f9f7 259 {
<> 144:ef7eb2e8f9f7 260 /* transpose of bytes for read is set, the result CRC is in CRC_DATA[HU:HL] */
<> 144:ef7eb2e8f9f7 261 retval &= 0xFFFF0000U;
<> 144:ef7eb2e8f9f7 262 retval = retval >> 16U;
<> 144:ef7eb2e8f9f7 263 }
<> 144:ef7eb2e8f9f7 264 else
<> 144:ef7eb2e8f9f7 265 {
<> 144:ef7eb2e8f9f7 266 /* no transpose of bytes for read, the result CRC is in CRC_DATA[LU:LL] */
<> 144:ef7eb2e8f9f7 267 retval &= 0x0000FFFFU;
<> 144:ef7eb2e8f9f7 268 }
<> 144:ef7eb2e8f9f7 269 return (uint16_t)retval;
<> 144:ef7eb2e8f9f7 270 }