amiro-lld / source / VCNL4020 / v1 / alld_VCNL4020_v1.c @ 78cc79d4
History | View | Annotate | Download (11.942 KB)
| 1 |
/*
|
|---|---|
| 2 |
AMiRo-LLD is a compilation of low-level hardware drivers for the Autonomous Mini Robot (AMiRo) platform.
|
| 3 |
Copyright (C) 2016..2019 Thomas Schöpping et al.
|
| 4 |
|
| 5 |
This program is free software: you can redistribute it and/or modify
|
| 6 |
it under the terms of the GNU Lesser General Public License as published by
|
| 7 |
the Free Software Foundation, either version 3 of the License, or
|
| 8 |
(at your option) any later version.
|
| 9 |
|
| 10 |
This program is distributed in the hope that it will be useful,
|
| 11 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 12 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 13 |
GNU Lesser General Public License for more details.
|
| 14 |
|
| 15 |
You should have received a copy of the GNU Lesser General Public License
|
| 16 |
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
| 17 |
*/
|
| 18 |
|
| 19 |
/**
|
| 20 |
* @file alld_VCNL4020_v1.c
|
| 21 |
* @brief Proximity Sensor function implementations.
|
| 22 |
*
|
| 23 |
* @addtogroup lld_proximity
|
| 24 |
* @{
|
| 25 |
*/
|
| 26 |
|
| 27 |
#include <alld_VCNL4020.h> |
| 28 |
|
| 29 |
#if (defined(AMIROLLD_CFG_VCNL4020) && (AMIROLLD_CFG_VCNL4020 == 1)) || defined(__DOXYGEN__) |
| 30 |
|
| 31 |
/******************************************************************************/
|
| 32 |
/* LOCAL DEFINITIONS */
|
| 33 |
/******************************************************************************/
|
| 34 |
|
| 35 |
/******************************************************************************/
|
| 36 |
/* EXPORTED VARIABLES */
|
| 37 |
/******************************************************************************/
|
| 38 |
|
| 39 |
/******************************************************************************/
|
| 40 |
/* LOCAL TYPES */
|
| 41 |
/******************************************************************************/
|
| 42 |
|
| 43 |
/******************************************************************************/
|
| 44 |
/* LOCAL VARIABLES */
|
| 45 |
/******************************************************************************/
|
| 46 |
|
| 47 |
/******************************************************************************/
|
| 48 |
/* LOCAL FUNCTIONS */
|
| 49 |
/******************************************************************************/
|
| 50 |
|
| 51 |
/******************************************************************************/
|
| 52 |
/* EXPORTED FUNCTIONS */
|
| 53 |
/******************************************************************************/
|
| 54 |
|
| 55 |
/* general single register access */
|
| 56 |
|
| 57 |
/**
|
| 58 |
* @brief Read the 8-bit data from any register.
|
| 59 |
* @param[in] vcnld The VCNL402 driver to use.
|
| 60 |
* @param[in] reg The register to read.
|
| 61 |
* @param[out] data The data read from the VCNL4020.
|
| 62 |
* @param[in] timeout Timeout for the function to return (in microseconds)
|
| 63 |
*
|
| 64 |
* @return The return status indicates whether the function call was succesfull or a timeout occurred.
|
| 65 |
*/
|
| 66 |
apalExitStatus_t vcnl4020_lld_readreg(const VCNL4020Driver* const vcnld, const vcnl4020_lld_regaddr_t reg, uint8_t* const data, const apalTime_t timeout) |
| 67 |
{
|
| 68 |
apalDbgAssert(vcnld != NULL && vcnld->i2cd != NULL); |
| 69 |
apalDbgAssert(data != NULL);
|
| 70 |
|
| 71 |
return apalI2CMasterTransmit(vcnld->i2cd, (apalI2Caddr_t)VCNL4020_LLD_I2C_ADDR, (uint8_t*)®, 1, data, 1, timeout); |
| 72 |
} |
| 73 |
|
| 74 |
/**
|
| 75 |
* @brief Write data to any 8-bit register.
|
| 76 |
* @param[in] vcnld The VCNL402 driver to use.
|
| 77 |
* @param[in] reg The register to write to.
|
| 78 |
* @param[in] data The data to write.
|
| 79 |
* @param[in] timeout Timeout for the function to return (in microseconds)
|
| 80 |
*
|
| 81 |
* @return The return status indicates whether the function call was succesfull or a timeout occurred.
|
| 82 |
*/
|
| 83 |
apalExitStatus_t vcnl4020_lld_writereg(const VCNL4020Driver* const vcnld, const vcnl4020_lld_regaddr_t reg, const uint8_t data, const apalTime_t timeout) |
| 84 |
{
|
| 85 |
apalDbgAssert(vcnld != NULL && vcnld->i2cd != NULL); |
| 86 |
|
| 87 |
uint8_t txbuf[2] = { reg, data };
|
| 88 |
return apalI2CMasterTransmit(vcnld->i2cd, (apalI2Caddr_t)VCNL4020_LLD_I2C_ADDR, txbuf, 2, NULL, 0, timeout); |
| 89 |
} |
| 90 |
|
| 91 |
/* sensor result access */
|
| 92 |
|
| 93 |
/**
|
| 94 |
* @brief Read the result of the latest ambient light measurement.
|
| 95 |
*
|
| 96 |
* @param[in] vcnld The VCNL402 driver to use.
|
| 97 |
* @param[out] als Result of the latest ambient light measuremenet.
|
| 98 |
* @param[in] timeout Timeout for the function to return (in microseconds).
|
| 99 |
*
|
| 100 |
* @return The return status indicates whether the function call was succesfull or a timeout occurred.
|
| 101 |
*/
|
| 102 |
apalExitStatus_t vcnl4020_lld_readals(const VCNL4020Driver* const vcnld, uint16_t* const als, const apalTime_t timeout) |
| 103 |
{
|
| 104 |
apalDbgAssert(vcnld != NULL && vcnld->i2cd != NULL); |
| 105 |
apalDbgAssert(als != NULL);
|
| 106 |
|
| 107 |
uint8_t txbuf[1] = { VCNL4020_LLD_REGADDR_ALRES_HIGH };
|
| 108 |
uint8_t rxbuf[2];
|
| 109 |
apalExitStatus_t status = apalI2CMasterTransmit(vcnld->i2cd, (apalI2Caddr_t)VCNL4020_LLD_I2C_ADDR, txbuf, 1, rxbuf, 2, timeout); |
| 110 |
*als = (rxbuf[0] << 8) | rxbuf[1]; |
| 111 |
return status;
|
| 112 |
} |
| 113 |
|
| 114 |
/**
|
| 115 |
* @brief Read the result of the latest proximity measurement.
|
| 116 |
*
|
| 117 |
* @param[in] vcnld The VCNL402 driver to use.
|
| 118 |
* @param[out] prox Result of the latest proximity measuremenet.
|
| 119 |
* @param[in] timeout Timeout for the function to return (in microseconds).
|
| 120 |
*
|
| 121 |
* @return The return status indicates whether the function call was succesfull or a timeout occurred.
|
| 122 |
*/
|
| 123 |
apalExitStatus_t vcnl4020_lld_readprox(const VCNL4020Driver* const vcnld, uint16_t* const prox, const apalTime_t timeout) |
| 124 |
{
|
| 125 |
apalDbgAssert(vcnld != NULL && vcnld->i2cd != NULL); |
| 126 |
apalDbgAssert(prox != NULL);
|
| 127 |
|
| 128 |
uint8_t txbuf[1] = { VCNL4020_LLD_REGADDR_PROXRES_HIGH };
|
| 129 |
uint8_t rxbuf[2];
|
| 130 |
apalExitStatus_t status = apalI2CMasterTransmit(vcnld->i2cd, (apalI2Caddr_t)VCNL4020_LLD_I2C_ADDR, txbuf, 1, rxbuf, 2, timeout); |
| 131 |
*prox = (rxbuf[0] << 8) | rxbuf[1]; |
| 132 |
return status;
|
| 133 |
} |
| 134 |
|
| 135 |
/**
|
| 136 |
* @brief Read the results of the latest ambient light and proximity measurements.
|
| 137 |
*
|
| 138 |
* @param[in] vcnld The VCNL402 driver to use.
|
| 139 |
* @param[out] als Result of the latest ambient light measuremenet.
|
| 140 |
* @param[out] prox Result of the latest proximity measuremenet.
|
| 141 |
* @param[in] timeout Timeout for the function to return (in microseconds).
|
| 142 |
*
|
| 143 |
* @return The return status indicates whether the function call was succesfull or a timeout occurred.
|
| 144 |
*/
|
| 145 |
apalExitStatus_t vcnl4020_lld_readalsandprox(const VCNL4020Driver* const vcnld, uint16_t* const als, uint16_t* const prox, const apalTime_t timeout) |
| 146 |
{
|
| 147 |
apalDbgAssert(vcnld != NULL && vcnld->i2cd != NULL); |
| 148 |
apalDbgAssert(als != NULL);
|
| 149 |
apalDbgAssert(prox != NULL);
|
| 150 |
|
| 151 |
uint8_t txbuf[1] = { VCNL4020_LLD_REGADDR_ALRES_HIGH };
|
| 152 |
uint8_t rxbuf[4];
|
| 153 |
apalExitStatus_t status = apalI2CMasterTransmit(vcnld->i2cd, (apalI2Caddr_t)VCNL4020_LLD_I2C_ADDR, txbuf, 1, rxbuf, 4, timeout); |
| 154 |
*als = (rxbuf[0] << 8) | rxbuf[1]; |
| 155 |
*prox = (rxbuf[2] << 8) | rxbuf[3]; |
| 156 |
return status;
|
| 157 |
} |
| 158 |
|
| 159 |
/*============================================================================*/
|
| 160 |
/* threshold register access */
|
| 161 |
/*============================================================================*/
|
| 162 |
|
| 163 |
/**
|
| 164 |
* @brief Read the current value of the low threshold.
|
| 165 |
*
|
| 166 |
* @param[in] vcnld The VCNL402 driver to use.
|
| 167 |
* @param[out] th Current value of the low threshold.
|
| 168 |
* @param[in] timeout Timeout for the function to return (in microseconds).
|
| 169 |
*
|
| 170 |
* @return The return status indicates whether the function call was succesfull or a timeout occurred.
|
| 171 |
*/
|
| 172 |
apalExitStatus_t vcnl4020_lld_readlth(const VCNL4020Driver* const vcnld, uint16_t* const th, const apalTime_t timeout) |
| 173 |
{
|
| 174 |
apalDbgAssert(vcnld != NULL && vcnld->i2cd != NULL); |
| 175 |
apalDbgAssert(th != NULL);
|
| 176 |
|
| 177 |
uint8_t txbuf[1] = { VCNL4020_LLD_REGADDR_LTH_HIGH };
|
| 178 |
uint8_t rxbuf[2];
|
| 179 |
apalExitStatus_t status = apalI2CMasterTransmit(vcnld->i2cd, (apalI2Caddr_t)VCNL4020_LLD_I2C_ADDR, txbuf, 1, rxbuf, 2, timeout); |
| 180 |
*th = (rxbuf[0] << 8) | rxbuf[1]; |
| 181 |
return status;
|
| 182 |
} |
| 183 |
|
| 184 |
/**
|
| 185 |
* @brief Read the current value of the high threshold.
|
| 186 |
*
|
| 187 |
* @param[in] vcnld The VCNL402 driver to use.
|
| 188 |
* @param[out] th Current value of the high threshold.
|
| 189 |
* @param[in] timeout Timeout for the function to return (in microseconds).
|
| 190 |
*
|
| 191 |
* @return The return status indicates whether the function call was succesfull or a timeout occurred.
|
| 192 |
*/
|
| 193 |
apalExitStatus_t vcnl4020_lld_readhth(const VCNL4020Driver* const vcnld, uint16_t* const th, const apalTime_t timeout) |
| 194 |
{
|
| 195 |
apalDbgAssert(vcnld != NULL && vcnld->i2cd != NULL); |
| 196 |
apalDbgAssert(th != NULL);
|
| 197 |
|
| 198 |
uint8_t txbuf[1] = { VCNL4020_LLD_REGADDR_HTH_HIGH };
|
| 199 |
uint8_t rxbuf[2];
|
| 200 |
apalExitStatus_t status = apalI2CMasterTransmit(vcnld->i2cd, (apalI2Caddr_t)VCNL4020_LLD_I2C_ADDR, txbuf, 1, rxbuf, 2, timeout); |
| 201 |
*th = (rxbuf[0] << 8) | rxbuf[1]; |
| 202 |
return status;
|
| 203 |
} |
| 204 |
|
| 205 |
/**
|
| 206 |
* @brief Read the current value of both (high and low) thresholds.
|
| 207 |
*
|
| 208 |
* @param[in] vcnld The VCNL402 driver to use.
|
| 209 |
* @param[out] lth Current value of the low threshold.
|
| 210 |
* @param[out] hth Current value of the high threshold.
|
| 211 |
* @param[in] timeout Timeout for the function to return (in microseconds).
|
| 212 |
*
|
| 213 |
* @return The return status indicates whether the function call was succesfull or a timeout occurred.
|
| 214 |
*/
|
| 215 |
apalExitStatus_t vcnl4020_lld_readth(const VCNL4020Driver* const vcnld, uint16_t* const lth, uint16_t* const hth, const apalTime_t timeout) |
| 216 |
{
|
| 217 |
apalDbgAssert(vcnld != NULL && vcnld->i2cd != NULL); |
| 218 |
apalDbgAssert(lth != NULL);
|
| 219 |
apalDbgAssert(hth != NULL);
|
| 220 |
|
| 221 |
uint8_t txbuf[1] = { VCNL4020_LLD_REGADDR_LTH_HIGH };
|
| 222 |
uint8_t rxbuf[4];
|
| 223 |
apalExitStatus_t status = apalI2CMasterTransmit(vcnld->i2cd, (apalI2Caddr_t)VCNL4020_LLD_I2C_ADDR, txbuf, 1, rxbuf, 4, timeout); |
| 224 |
*lth = (rxbuf[0] << 8) | rxbuf[1]; |
| 225 |
*hth = (rxbuf[2] << 8) | rxbuf[3]; |
| 226 |
return status;
|
| 227 |
} |
| 228 |
|
| 229 |
/**
|
| 230 |
* @brief Set the low threshold value.
|
| 231 |
*
|
| 232 |
* @param[in] vcnld The VCNL402 driver to use.
|
| 233 |
* @param[in] th The new threshold value to write.
|
| 234 |
* @param[in] timeout Timeout for the function to return (in microseconds).
|
| 235 |
*
|
| 236 |
* @return The return status indicates whether the function call was succesfull or a timeout occurred.
|
| 237 |
*/
|
| 238 |
apalExitStatus_t vcnl4020_lld_writelth(const VCNL4020Driver* const vcnld, const uint16_t th, const apalTime_t timeout) |
| 239 |
{
|
| 240 |
apalDbgAssert(vcnld != NULL && vcnld->i2cd != NULL); |
| 241 |
|
| 242 |
uint8_t txbuf[3] = { VCNL4020_LLD_REGADDR_LTH_HIGH ,(th & 0xFF00u) >> 8, th & 0x00FFu }; |
| 243 |
return apalI2CMasterTransmit(vcnld->i2cd, (apalI2Caddr_t)VCNL4020_LLD_I2C_ADDR, txbuf, 3, NULL, 0, timeout); |
| 244 |
} |
| 245 |
|
| 246 |
/**
|
| 247 |
* @brief Set the high threshold value.
|
| 248 |
*
|
| 249 |
* @param[in] vcnld The VCNL402 driver to use.
|
| 250 |
* @param[in] th The new threshold value to write.
|
| 251 |
* @param[in] timeout Timeout for the function to return (in microseconds).
|
| 252 |
*
|
| 253 |
* @return The return status indicates whether the function call was succesfull or a timeout occurred.
|
| 254 |
*/
|
| 255 |
apalExitStatus_t vcnl4020_lld_writehth(const VCNL4020Driver* const vcnld, const uint16_t th, const apalTime_t timeout) |
| 256 |
{
|
| 257 |
apalDbgAssert(vcnld != NULL && vcnld->i2cd != NULL); |
| 258 |
|
| 259 |
uint8_t txbuf[3] = { VCNL4020_LLD_REGADDR_HTH_HIGH, (th & 0xFF00u) >> 8, th & 0x00FFu }; |
| 260 |
return apalI2CMasterTransmit(vcnld->i2cd, (apalI2Caddr_t)VCNL4020_LLD_I2C_ADDR, txbuf, 3, NULL, 0, timeout); |
| 261 |
} |
| 262 |
|
| 263 |
/**
|
| 264 |
* @brief Set both (high and low) threshold values.
|
| 265 |
*
|
| 266 |
* @param[in] vcnld The VCNL402 driver to use.
|
| 267 |
* @param[in] lth The new value of the low threshold.
|
| 268 |
* @param[in] hth The new value of the high threshold.
|
| 269 |
* @param[in] timeout Timeout for the function to return (in microseconds).
|
| 270 |
*
|
| 271 |
* @return The return status indicates whether the function call was succesfull or a timeout occurred.
|
| 272 |
*/
|
| 273 |
apalExitStatus_t vcnl4020_lld_writeth(const VCNL4020Driver* const vcnld, const uint16_t lth, const uint16_t hth, const apalTime_t timeout) |
| 274 |
{
|
| 275 |
apalDbgAssert(vcnld != NULL && vcnld->i2cd != NULL); |
| 276 |
|
| 277 |
uint8_t txbuf[5] = { VCNL4020_LLD_REGADDR_LTH_HIGH, (lth & 0xFF00u) >> 8, lth & 0x00FFu, (hth & 0xFF00u) >> 8, hth & 0x00FFu }; |
| 278 |
return apalI2CMasterTransmit(vcnld->i2cd, (apalI2Caddr_t)VCNL4020_LLD_I2C_ADDR, txbuf, 5, NULL, 0, timeout); |
| 279 |
} |
| 280 |
|
| 281 |
#endif /* defined(AMIROLLD_CFG_VCNL4020) && (AMIROLLD_CFG_VCNL4020 == 1) */ |
| 282 |
|
| 283 |
/** @} */
|