amiro-lld / source / VCNL4020 / v1 / alld_VCNL4020_v1.c @ d2281627
History | View | Annotate | Download (11.942 KB)
| 1 | d6728c5b | Thomas Schöpping | /*
|
|---|---|---|---|
| 2 | AMiRo-LLD is a compilation of low-level hardware drivers for the Autonomous Mini Robot (AMiRo) platform.
|
||
| 3 | f125ae07 | Thomas Schöpping | Copyright (C) 2016..2019 Thomas Schöpping et al.
|
| 4 | d6728c5b | Thomas Schöpping | |
| 5 | This program is free software: you can redistribute it and/or modify
|
||
| 6 | f0ca400f | Thomas Schöpping | it under the terms of the GNU Lesser General Public License as published by
|
| 7 | d6728c5b | Thomas Schöpping | 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 | f0ca400f | Thomas Schöpping | GNU Lesser General Public License for more details.
|
| 14 | d6728c5b | Thomas Schöpping | |
| 15 | f0ca400f | Thomas Schöpping | You should have received a copy of the GNU Lesser General Public License
|
| 16 | d6728c5b | Thomas Schöpping | along with this program. If not, see <http://www.gnu.org/licenses/>.
|
| 17 | */
|
||
| 18 | |||
| 19 | 5e2f673b | Marc Rothmann | /**
|
| 20 | 1d5bcc82 | Thomas Schöpping | * @file alld_VCNL4020_v1.c
|
| 21 | 5e2f673b | Marc Rothmann | * @brief Proximity Sensor function implementations.
|
| 22 | *
|
||
| 23 | * @addtogroup lld_proximity
|
||
| 24 | * @{
|
||
| 25 | */
|
||
| 26 | |||
| 27 | 1d5bcc82 | Thomas Schöpping | #include <alld_VCNL4020.h> |
| 28 | d6728c5b | Thomas Schöpping | |
| 29 | 1d5bcc82 | Thomas Schöpping | #if (defined(AMIROLLD_CFG_VCNL4020) && (AMIROLLD_CFG_VCNL4020 == 1)) || defined(__DOXYGEN__) |
| 30 | d6728c5b | Thomas Schöpping | |
| 31 | ef078306 | Thomas Schöpping | /******************************************************************************/
|
| 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 | d6728c5b | Thomas Schöpping | |
| 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 | 21076167 | Thomas Schöpping | apalExitStatus_t vcnl4020_lld_readreg(const VCNL4020Driver* const vcnld, const vcnl4020_lld_regaddr_t reg, uint8_t* const data, const apalTime_t timeout) |
| 67 | d6728c5b | Thomas Schöpping | {
|
| 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 | 21076167 | Thomas Schöpping | apalExitStatus_t vcnl4020_lld_writereg(const VCNL4020Driver* const vcnld, const vcnl4020_lld_regaddr_t reg, const uint8_t data, const apalTime_t timeout) |
| 84 | d6728c5b | Thomas Schöpping | {
|
| 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 | ef078306 | Thomas Schöpping | /* sensor result access */
|
| 92 | d6728c5b | Thomas Schöpping | |
| 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 | 21076167 | Thomas Schöpping | apalExitStatus_t vcnl4020_lld_readals(const VCNL4020Driver* const vcnld, uint16_t* const als, const apalTime_t timeout) |
| 103 | d6728c5b | Thomas Schöpping | {
|
| 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 | 21076167 | Thomas Schöpping | apalExitStatus_t vcnl4020_lld_readprox(const VCNL4020Driver* const vcnld, uint16_t* const prox, const apalTime_t timeout) |
| 124 | d6728c5b | Thomas Schöpping | {
|
| 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 | 21076167 | Thomas Schöpping | apalExitStatus_t vcnl4020_lld_readalsandprox(const VCNL4020Driver* const vcnld, uint16_t* const als, uint16_t* const prox, const apalTime_t timeout) |
| 146 | d6728c5b | Thomas Schöpping | {
|
| 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 | 21076167 | Thomas Schöpping | apalExitStatus_t vcnl4020_lld_readlth(const VCNL4020Driver* const vcnld, uint16_t* const th, const apalTime_t timeout) |
| 173 | d6728c5b | Thomas Schöpping | {
|
| 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 | 21076167 | Thomas Schöpping | apalExitStatus_t vcnl4020_lld_readhth(const VCNL4020Driver* const vcnld, uint16_t* const th, const apalTime_t timeout) |
| 194 | d6728c5b | Thomas Schöpping | {
|
| 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 | 21076167 | Thomas Schöpping | apalExitStatus_t vcnl4020_lld_readth(const VCNL4020Driver* const vcnld, uint16_t* const lth, uint16_t* const hth, const apalTime_t timeout) |
| 216 | d6728c5b | Thomas Schöpping | {
|
| 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 | 21076167 | Thomas Schöpping | apalExitStatus_t vcnl4020_lld_writelth(const VCNL4020Driver* const vcnld, const uint16_t th, const apalTime_t timeout) |
| 239 | d6728c5b | Thomas Schöpping | {
|
| 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 | 21076167 | Thomas Schöpping | apalExitStatus_t vcnl4020_lld_writehth(const VCNL4020Driver* const vcnld, const uint16_t th, const apalTime_t timeout) |
| 256 | d6728c5b | Thomas Schöpping | {
|
| 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 | 21076167 | Thomas Schöpping | apalExitStatus_t vcnl4020_lld_writeth(const VCNL4020Driver* const vcnld, const uint16_t lth, const uint16_t hth, const apalTime_t timeout) |
| 274 | d6728c5b | Thomas Schöpping | {
|
| 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 | 1d5bcc82 | Thomas Schöpping | #endif /* defined(AMIROLLD_CFG_VCNL4020) && (AMIROLLD_CFG_VCNL4020 == 1) */ |
| 282 | 5e2f673b | Marc Rothmann | |
| 283 | /** @} */ |