Forked so that I can make it take I2C as a parameter; on a bus with other I2C things.
Fork of Si1133 by
Si1133.h@2:1e2dd643afa8, 2017-11-12 (annotated)
- Committer:
- stevew817
- Date:
- Sun Nov 12 20:18:04 2017 +0100
- Revision:
- 2:1e2dd643afa8
- Parent:
- 0:667132a19341
Cosmetic changes
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
stevew817 | 0:667132a19341 | 1 | /***************************************************************************//** |
stevew817 | 0:667132a19341 | 2 | * @file Si1133.h |
stevew817 | 0:667132a19341 | 3 | ******************************************************************************* |
stevew817 | 0:667132a19341 | 4 | * @section License |
stevew817 | 0:667132a19341 | 5 | * <b>(C) Copyright 2017 Silicon Labs, http://www.silabs.com</b> |
stevew817 | 0:667132a19341 | 6 | ******************************************************************************* |
stevew817 | 0:667132a19341 | 7 | * |
stevew817 | 0:667132a19341 | 8 | * SPDX-License-Identifier: Apache-2.0 |
stevew817 | 0:667132a19341 | 9 | * |
stevew817 | 0:667132a19341 | 10 | * Licensed under the Apache License, Version 2.0 (the "License"); you may |
stevew817 | 0:667132a19341 | 11 | * not use this file except in compliance with the License. |
stevew817 | 0:667132a19341 | 12 | * You may obtain a copy of the License at |
stevew817 | 0:667132a19341 | 13 | * |
stevew817 | 0:667132a19341 | 14 | * http://www.apache.org/licenses/LICENSE-2.0 |
stevew817 | 0:667132a19341 | 15 | * |
stevew817 | 0:667132a19341 | 16 | * Unless required by applicable law or agreed to in writing, software |
stevew817 | 0:667132a19341 | 17 | * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
stevew817 | 0:667132a19341 | 18 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
stevew817 | 0:667132a19341 | 19 | * See the License for the specific language governing permissions and |
stevew817 | 0:667132a19341 | 20 | * limitations under the License. |
stevew817 | 0:667132a19341 | 21 | * |
stevew817 | 0:667132a19341 | 22 | ******************************************************************************/ |
stevew817 | 0:667132a19341 | 23 | |
stevew817 | 0:667132a19341 | 24 | #ifndef SI1133_H |
stevew817 | 0:667132a19341 | 25 | #define SI1133_H |
stevew817 | 0:667132a19341 | 26 | |
stevew817 | 0:667132a19341 | 27 | #include "mbed.h" |
stevew817 | 0:667132a19341 | 28 | |
stevew817 | 0:667132a19341 | 29 | /** Si1133 class. |
stevew817 | 0:667132a19341 | 30 | * Used for taking Light level and UV index measurements. |
stevew817 | 0:667132a19341 | 31 | * |
stevew817 | 0:667132a19341 | 32 | * Example: |
stevew817 | 0:667132a19341 | 33 | * @code |
stevew817 | 0:667132a19341 | 34 | * #include "mbed.h" |
stevew817 | 0:667132a19341 | 35 | * #include "Si1133.h" |
stevew817 | 0:667132a19341 | 36 | * |
stevew817 | 0:667132a19341 | 37 | * //Create an Si1133 object |
stevew817 | 0:667132a19341 | 38 | * Si1133 sensor(PC4, PC5); |
stevew817 | 0:667132a19341 | 39 | * |
stevew817 | 0:667132a19341 | 40 | * int main() |
stevew817 | 0:667132a19341 | 41 | * { |
stevew817 | 0:667132a19341 | 42 | * //Try to open the Si1133 |
stevew817 | 0:667132a19341 | 43 | * if (sensor.open()) { |
stevew817 | 0:667132a19341 | 44 | * printf("Device detected!\n"); |
stevew817 | 0:667132a19341 | 45 | * |
stevew817 | 0:667132a19341 | 46 | * while (1) { |
stevew817 | 0:667132a19341 | 47 | * //Print the current light level |
stevew817 | 0:667132a19341 | 48 | * printf("Lux = %.3f\n", (float)sensor.get_light_level()); |
stevew817 | 0:667132a19341 | 49 | * //Print the current UV index |
stevew817 | 0:667132a19341 | 50 | * printf("UV index = %.3f\n", (float)sensor.get_uv_index()); |
stevew817 | 0:667132a19341 | 51 | * |
stevew817 | 0:667132a19341 | 52 | * //Sleep for 0.5 seconds |
stevew817 | 0:667132a19341 | 53 | * wait(0.5); |
stevew817 | 0:667132a19341 | 54 | * } |
stevew817 | 0:667132a19341 | 55 | * } else { |
stevew817 | 0:667132a19341 | 56 | * error("Device not detected!\n"); |
stevew817 | 0:667132a19341 | 57 | * } |
stevew817 | 0:667132a19341 | 58 | * } |
stevew817 | 0:667132a19341 | 59 | * @endcode |
stevew817 | 0:667132a19341 | 60 | */ |
stevew817 | 0:667132a19341 | 61 | class Si1133 |
stevew817 | 0:667132a19341 | 62 | { |
stevew817 | 0:667132a19341 | 63 | public: |
stevew817 | 0:667132a19341 | 64 | |
stevew817 | 0:667132a19341 | 65 | /** Create an Si1133 object connected to the specified I2C pins with the specified I2C slave address |
stevew817 | 0:667132a19341 | 66 | * |
stevew817 | 0:667132a19341 | 67 | * @param sda The I2C data pin. |
stevew817 | 0:667132a19341 | 68 | * @param scl The I2C clock pin. |
stevew817 | 0:667132a19341 | 69 | * @param hz The I2C bus frequency (defaults to 400kHz). |
stevew817 | 0:667132a19341 | 70 | */ |
stevew817 | 0:667132a19341 | 71 | Si1133(PinName sda, PinName scl, int hz = 400000); |
stevew817 | 0:667132a19341 | 72 | |
stevew817 | 0:667132a19341 | 73 | /** |
stevew817 | 0:667132a19341 | 74 | * Si1133 destructor |
stevew817 | 0:667132a19341 | 75 | */ |
stevew817 | 0:667132a19341 | 76 | ~Si1133(void); |
stevew817 | 0:667132a19341 | 77 | |
stevew817 | 0:667132a19341 | 78 | /** Probe for the Si1133 and try to initialize the sensor |
stevew817 | 0:667132a19341 | 79 | * |
stevew817 | 0:667132a19341 | 80 | * @returns |
stevew817 | 0:667132a19341 | 81 | * 'true' if the device exists on the bus, |
stevew817 | 0:667132a19341 | 82 | * 'false' if the device doesn't exist on the bus. |
stevew817 | 0:667132a19341 | 83 | */ |
stevew817 | 0:667132a19341 | 84 | bool open(); |
stevew817 | 0:667132a19341 | 85 | |
stevew817 | 0:667132a19341 | 86 | /** Measure the current light level (in lux) on the Si1133 |
stevew817 | 0:667132a19341 | 87 | * |
stevew817 | 0:667132a19341 | 88 | * @returns The current temperature measurement in Lux. |
stevew817 | 0:667132a19341 | 89 | */ |
stevew817 | 0:667132a19341 | 90 | float get_light_level(); |
stevew817 | 0:667132a19341 | 91 | |
stevew817 | 0:667132a19341 | 92 | /** Measure the current UV Index on the Si1133 |
stevew817 | 0:667132a19341 | 93 | * |
stevew817 | 0:667132a19341 | 94 | * @returns The current UV index measurement. |
stevew817 | 0:667132a19341 | 95 | */ |
stevew817 | 0:667132a19341 | 96 | float get_uv_index(); |
stevew817 | 0:667132a19341 | 97 | |
stevew817 | 0:667132a19341 | 98 | /** Do a combined measurement and return both the light level and UV index |
stevew817 | 0:667132a19341 | 99 | * |
stevew817 | 0:667132a19341 | 100 | * @param[out] light_level Measured light level in Lux |
stevew817 | 0:667132a19341 | 101 | * @param[out] uv_index Measured UV index |
stevew817 | 0:667132a19341 | 102 | * |
stevew817 | 0:667132a19341 | 103 | * @returns true if measurement was successful |
stevew817 | 0:667132a19341 | 104 | */ |
stevew817 | 0:667132a19341 | 105 | bool get_light_and_uv(float *light_level, float *uv_index); |
stevew817 | 0:667132a19341 | 106 | |
stevew817 | 0:667132a19341 | 107 | #ifdef MBED_OPERATORS |
stevew817 | 0:667132a19341 | 108 | /** A shorthand for get_light_level() |
stevew817 | 0:667132a19341 | 109 | * |
stevew817 | 0:667132a19341 | 110 | * @returns The current temperature measurement in Lux. |
stevew817 | 0:667132a19341 | 111 | */ |
stevew817 | 0:667132a19341 | 112 | operator float(); |
stevew817 | 0:667132a19341 | 113 | #endif |
stevew817 | 0:667132a19341 | 114 | |
stevew817 | 0:667132a19341 | 115 | private: |
stevew817 | 0:667132a19341 | 116 | /** |
stevew817 | 0:667132a19341 | 117 | * @name I2C Registers |
stevew817 | 0:667132a19341 | 118 | * @{ |
stevew817 | 0:667132a19341 | 119 | */ |
stevew817 | 0:667132a19341 | 120 | enum Register { |
stevew817 | 0:667132a19341 | 121 | REG_PART_ID = 0x00, /**< Part ID */ |
stevew817 | 0:667132a19341 | 122 | REG_HW_ID = 0x01, /**< Hardware ID */ |
stevew817 | 0:667132a19341 | 123 | REG_REV_ID = 0x02, /**< Hardware revision */ |
stevew817 | 0:667132a19341 | 124 | REG_HOSTIN0 = 0x0A, /**< Data for parameter table on PARAM_SET write to COMMAND register */ |
stevew817 | 0:667132a19341 | 125 | REG_COMMAND = 0x0B, /**< Initiated action in Sensor when specific codes written here */ |
stevew817 | 0:667132a19341 | 126 | REG_IRQ_ENABLE = 0x0F, /**< Interrupt enable */ |
stevew817 | 0:667132a19341 | 127 | REG_RESPONSE1 = 0x10, /**< Contains the readback value from a query or a set command */ |
stevew817 | 0:667132a19341 | 128 | REG_RESPONSE0 = 0x11, /**< Chip state and error status */ |
stevew817 | 0:667132a19341 | 129 | REG_IRQ_STATUS = 0x12, /**< Interrupt status */ |
stevew817 | 0:667132a19341 | 130 | REG_HOSTOUT0 = 0x13, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 131 | REG_HOSTOUT1 = 0x14, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 132 | REG_HOSTOUT2 = 0x15, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 133 | REG_HOSTOUT3 = 0x16, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 134 | REG_HOSTOUT4 = 0x17, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 135 | REG_HOSTOUT5 = 0x18, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 136 | REG_HOSTOUT6 = 0x19, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 137 | REG_HOSTOUT7 = 0x1A, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 138 | REG_HOSTOUT8 = 0x1B, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 139 | REG_HOSTOUT9 = 0x1C, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 140 | REG_HOSTOUT10 = 0x1D, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 141 | REG_HOSTOUT11 = 0x1E, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 142 | REG_HOSTOUT12 = 0x1F, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 143 | REG_HOSTOUT13 = 0x20, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 144 | REG_HOSTOUT14 = 0x21, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 145 | REG_HOSTOUT15 = 0x22, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 146 | REG_HOSTOUT16 = 0x23, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 147 | REG_HOSTOUT17 = 0x24, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 148 | REG_HOSTOUT18 = 0x25, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 149 | REG_HOSTOUT19 = 0x26, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 150 | REG_HOSTOUT20 = 0x27, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 151 | REG_HOSTOUT21 = 0x28, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 152 | REG_HOSTOUT22 = 0x29, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 153 | REG_HOSTOUT23 = 0x2A, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 154 | REG_HOSTOUT24 = 0x2B, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 155 | REG_HOSTOUT25 = 0x2C, /**< Captured Sensor Data */ |
stevew817 | 0:667132a19341 | 156 | }; |
stevew817 | 0:667132a19341 | 157 | /**@}*/ |
stevew817 | 0:667132a19341 | 158 | |
stevew817 | 0:667132a19341 | 159 | /** |
stevew817 | 0:667132a19341 | 160 | * @name Parameters |
stevew817 | 0:667132a19341 | 161 | * @{ |
stevew817 | 0:667132a19341 | 162 | */ |
stevew817 | 0:667132a19341 | 163 | enum Parameter { |
stevew817 | 0:667132a19341 | 164 | PARAM_I2C_ADDR = 0x00, /**< I2C address */ |
stevew817 | 0:667132a19341 | 165 | PARAM_CH_LIST = 0x01, /**< Channel list */ |
stevew817 | 0:667132a19341 | 166 | PARAM_ADCCONFIG0 = 0x02, /**< ADC config for Channel 0 */ |
stevew817 | 0:667132a19341 | 167 | PARAM_ADCSENS0 = 0x03, /**< ADC sensitivity setting for Channel 0 */ |
stevew817 | 0:667132a19341 | 168 | PARAM_ADCPOST0 = 0x04, /**< ADC resolution, shift and threshold settings for Channel 0 */ |
stevew817 | 0:667132a19341 | 169 | PARAM_MEASCONFIG0 = 0x05, /**< ADC measurement counter selection for Channel 0 */ |
stevew817 | 0:667132a19341 | 170 | PARAM_ADCCONFIG1 = 0x06, /**< ADC config for Channel 1 */ |
stevew817 | 0:667132a19341 | 171 | PARAM_ADCSENS1 = 0x07, /**< ADC sensitivity setting for Channel 1 */ |
stevew817 | 0:667132a19341 | 172 | PARAM_ADCPOST1 = 0x08, /**< ADC resolution, shift and threshold settings for Channel 1 */ |
stevew817 | 0:667132a19341 | 173 | PARAM_MEASCONFIG1 = 0x09, /**< ADC measurement counter selection for Channel 1 */ |
stevew817 | 0:667132a19341 | 174 | PARAM_ADCCONFIG2 = 0x0A, /**< ADC config for Channel 2 */ |
stevew817 | 0:667132a19341 | 175 | PARAM_ADCSENS2 = 0x0B, /**< ADC sensitivity setting for Channel 2 */ |
stevew817 | 0:667132a19341 | 176 | PARAM_ADCPOST2 = 0x0C, /**< ADC resolution, shift and threshold settings for Channel 2 */ |
stevew817 | 0:667132a19341 | 177 | PARAM_MEASCONFIG2 = 0x0D, /**< ADC measurement counter selection for Channel 2 */ |
stevew817 | 0:667132a19341 | 178 | PARAM_ADCCONFIG3 = 0x0E, /**< ADC config for Channel 3 */ |
stevew817 | 0:667132a19341 | 179 | PARAM_ADCSENS3 = 0x0F, /**< ADC sensitivity setting for Channel 3 */ |
stevew817 | 0:667132a19341 | 180 | PARAM_ADCPOST3 = 0x10, /**< ADC resolution, shift and threshold settings for Channel 3 */ |
stevew817 | 0:667132a19341 | 181 | PARAM_MEASCONFIG3 = 0x11, /**< ADC measurement counter selection for Channel 3 */ |
stevew817 | 0:667132a19341 | 182 | PARAM_ADCCONFIG4 = 0x12, /**< ADC config for Channel 4 */ |
stevew817 | 0:667132a19341 | 183 | PARAM_ADCSENS4 = 0x13, /**< ADC sensitivity setting for Channel 4 */ |
stevew817 | 0:667132a19341 | 184 | PARAM_ADCPOST4 = 0x14, /**< ADC resolution, shift and threshold settings for Channel 4 */ |
stevew817 | 0:667132a19341 | 185 | PARAM_MEASCONFIG4 = 0x15, /**< ADC measurement counter selection for Channel 4 */ |
stevew817 | 0:667132a19341 | 186 | PARAM_ADCCONFIG5 = 0x16, /**< ADC config for Channel 5 */ |
stevew817 | 0:667132a19341 | 187 | PARAM_ADCSENS5 = 0x17, /**< ADC sensitivity setting for Channel 5 */ |
stevew817 | 0:667132a19341 | 188 | PARAM_ADCPOST5 = 0x18, /**< ADC resolution, shift and threshold settings for Channel 5 */ |
stevew817 | 0:667132a19341 | 189 | PARAM_MEASCONFIG5 = 0x19, /**< ADC measurement counter selection for Channel 5 */ |
stevew817 | 0:667132a19341 | 190 | PARAM_MEASRATE_H = 0x1A, /**< Main measurement rate counter MSB */ |
stevew817 | 0:667132a19341 | 191 | PARAM_MEASRATE_L = 0x1B, /**< Main measurement rate counter LSB */ |
stevew817 | 0:667132a19341 | 192 | PARAM_MEASCOUNT0 = 0x1C, /**< Measurement rate extension counter 0 */ |
stevew817 | 0:667132a19341 | 193 | PARAM_MEASCOUNT1 = 0x1D, /**< Measurement rate extension counter 1 */ |
stevew817 | 0:667132a19341 | 194 | PARAM_MEASCOUNT2 = 0x1E, /**< Measurement rate extension counter 2 */ |
stevew817 | 0:667132a19341 | 195 | PARAM_THRESHOLD0_H = 0x25, /**< Threshold level 0 MSB */ |
stevew817 | 0:667132a19341 | 196 | PARAM_THRESHOLD0_L = 0x26, /**< Threshold level 0 LSB */ |
stevew817 | 0:667132a19341 | 197 | PARAM_THRESHOLD1_H = 0x27, /**< Threshold level 1 MSB */ |
stevew817 | 0:667132a19341 | 198 | PARAM_THRESHOLD1_L = 0x28, /**< Threshold level 1 LSB */ |
stevew817 | 0:667132a19341 | 199 | PARAM_THRESHOLD2_H = 0x29, /**< Threshold level 2 MSB */ |
stevew817 | 0:667132a19341 | 200 | PARAM_THRESHOLD2_L = 0x2A, /**< Threshold level 2 LSB */ |
stevew817 | 0:667132a19341 | 201 | PARAM_BURST = 0x2B, /**< Burst enable and burst count */ |
stevew817 | 0:667132a19341 | 202 | }; |
stevew817 | 0:667132a19341 | 203 | /**@}*/ |
stevew817 | 0:667132a19341 | 204 | |
stevew817 | 0:667132a19341 | 205 | /** |
stevew817 | 0:667132a19341 | 206 | * @name Commands |
stevew817 | 0:667132a19341 | 207 | * @{ |
stevew817 | 0:667132a19341 | 208 | */ |
stevew817 | 0:667132a19341 | 209 | enum Command { |
stevew817 | 0:667132a19341 | 210 | CMD_RESET_CMD_CTR = 0x00, /**< Resets the command counter */ |
stevew817 | 0:667132a19341 | 211 | CMD_RESET = 0x01, /**< Forces a Reset */ |
stevew817 | 0:667132a19341 | 212 | CMD_NEW_ADDR = 0x02, /**< Stores the new I2C address */ |
stevew817 | 0:667132a19341 | 213 | CMD_FORCE_CH = 0x11, /**< Initiates a set of measurements specified in CHAN_LIST parameter */ |
stevew817 | 0:667132a19341 | 214 | CMD_PAUSE_CH = 0x12, /**< Pauses autonomous measurements */ |
stevew817 | 0:667132a19341 | 215 | CMD_START = 0x13, /**< Starts autonomous measurements */ |
stevew817 | 0:667132a19341 | 216 | CMD_PARAM_SET = 0x80, /**< Sets a parameter */ |
stevew817 | 0:667132a19341 | 217 | CMD_PARAM_QUERY = 0x40, /**< Reads a parameter */ |
stevew817 | 0:667132a19341 | 218 | }; |
stevew817 | 0:667132a19341 | 219 | /**@}*/ |
stevew817 | 0:667132a19341 | 220 | |
stevew817 | 0:667132a19341 | 221 | /** |
stevew817 | 0:667132a19341 | 222 | * @name Responses |
stevew817 | 0:667132a19341 | 223 | * @{ |
stevew817 | 0:667132a19341 | 224 | */ |
stevew817 | 0:667132a19341 | 225 | enum Response { |
stevew817 | 0:667132a19341 | 226 | RSP0_CHIPSTAT_MASK = 0xE0, /**< Chip state mask in Response0 register */ |
stevew817 | 0:667132a19341 | 227 | RSP0_COUNTER_MASK = 0x1F, /**< Command counter and error indicator mask in Response0 register */ |
stevew817 | 0:667132a19341 | 228 | RSP0_SLEEP = 0x20, /**< Sleep state indicator bit mask in Response0 register */ |
stevew817 | 0:667132a19341 | 229 | }; |
stevew817 | 0:667132a19341 | 230 | /**@}*/ |
stevew817 | 0:667132a19341 | 231 | |
stevew817 | 0:667132a19341 | 232 | /** |
stevew817 | 0:667132a19341 | 233 | * @brief |
stevew817 | 0:667132a19341 | 234 | * Structure to store the data measured by the Si1133 |
stevew817 | 0:667132a19341 | 235 | */ |
stevew817 | 0:667132a19341 | 236 | typedef struct { |
stevew817 | 0:667132a19341 | 237 | uint8_t irq_status; /**< Interrupt status of the device */ |
stevew817 | 0:667132a19341 | 238 | int32_t ch0; /**< Channel 0 measurement data */ |
stevew817 | 0:667132a19341 | 239 | int32_t ch1; /**< Channel 1 measurement data */ |
stevew817 | 0:667132a19341 | 240 | int32_t ch2; /**< Channel 2 measurement data */ |
stevew817 | 0:667132a19341 | 241 | int32_t ch3; /**< Channel 3 measurement data */ |
stevew817 | 0:667132a19341 | 242 | } Samples_t; |
stevew817 | 0:667132a19341 | 243 | |
stevew817 | 0:667132a19341 | 244 | /** |
stevew817 | 0:667132a19341 | 245 | * @brief |
stevew817 | 0:667132a19341 | 246 | * Structure to store the calculation coefficients |
stevew817 | 0:667132a19341 | 247 | */ |
stevew817 | 0:667132a19341 | 248 | typedef struct { |
stevew817 | 0:667132a19341 | 249 | int16_t info; /**< Info */ |
stevew817 | 0:667132a19341 | 250 | uint16_t mag; /**< Magnitude */ |
stevew817 | 0:667132a19341 | 251 | } Coeff_t; |
stevew817 | 0:667132a19341 | 252 | |
stevew817 | 0:667132a19341 | 253 | /** |
stevew817 | 0:667132a19341 | 254 | * @brief |
stevew817 | 0:667132a19341 | 255 | * Structure to store the coefficients used for Lux calculation |
stevew817 | 0:667132a19341 | 256 | */ |
stevew817 | 0:667132a19341 | 257 | typedef struct { |
stevew817 | 0:667132a19341 | 258 | Coeff_t coeff_high[4]; /**< High amplitude coeffs */ |
stevew817 | 0:667132a19341 | 259 | Coeff_t coeff_low[9]; /**< Low amplitude coeffs */ |
stevew817 | 0:667132a19341 | 260 | } LuxCoeff_t; |
stevew817 | 0:667132a19341 | 261 | |
stevew817 | 0:667132a19341 | 262 | /* Forward-declare constant coefficient table */ |
stevew817 | 0:667132a19341 | 263 | static const LuxCoeff_t lk; |
stevew817 | 0:667132a19341 | 264 | static const Coeff_t uk[]; |
stevew817 | 0:667132a19341 | 265 | |
stevew817 | 0:667132a19341 | 266 | /* Private functions */ |
stevew817 | 0:667132a19341 | 267 | uint32_t read_register(enum Register reg, uint8_t *data); |
stevew817 | 0:667132a19341 | 268 | uint32_t write_register(enum Register reg, uint8_t data); |
stevew817 | 0:667132a19341 | 269 | uint32_t write_register_block(enum Register reg, uint8_t length, uint8_t *data); |
stevew817 | 0:667132a19341 | 270 | uint32_t read_register_block(enum Register reg, uint8_t length, uint8_t *data); |
stevew817 | 0:667132a19341 | 271 | uint32_t get_irq_status(uint8_t *irq_status); |
stevew817 | 0:667132a19341 | 272 | uint32_t wait_until_sleep(void); |
stevew817 | 0:667132a19341 | 273 | uint32_t reset(void); |
stevew817 | 0:667132a19341 | 274 | uint32_t reset_cmd_counter (void); |
stevew817 | 0:667132a19341 | 275 | uint32_t send_cmd(enum Command command); |
stevew817 | 0:667132a19341 | 276 | uint32_t force_measurement (void); |
stevew817 | 0:667132a19341 | 277 | uint32_t pause_measurement (void); |
stevew817 | 0:667132a19341 | 278 | uint32_t start_measurement (void); |
stevew817 | 0:667132a19341 | 279 | uint32_t set_parameter (enum Parameter address, uint8_t value); |
stevew817 | 0:667132a19341 | 280 | uint32_t read_parameter (enum Parameter address); |
stevew817 | 0:667132a19341 | 281 | uint32_t init (void); |
stevew817 | 0:667132a19341 | 282 | uint32_t deinit (void); |
stevew817 | 2:1e2dd643afa8 | 283 | uint32_t measure (Samples_t *samples); |
stevew817 | 2:1e2dd643afa8 | 284 | int32_t get_uv (int32_t uv); |
stevew817 | 2:1e2dd643afa8 | 285 | int32_t get_lux (int32_t vis_high, int32_t vis_low, int32_t ir); |
stevew817 | 2:1e2dd643afa8 | 286 | uint32_t measure_lux_uv (float *lux, float *uvi); |
stevew817 | 2:1e2dd643afa8 | 287 | uint32_t get_measurement (float *lux, float *uvi); |
stevew817 | 2:1e2dd643afa8 | 288 | uint32_t get_hardware_id (uint8_t *hardware_id); |
stevew817 | 0:667132a19341 | 289 | |
stevew817 | 0:667132a19341 | 290 | int32_t calculate_polynomial_helper (int32_t input, int8_t fraction, uint16_t mag, int8_t shift); |
stevew817 | 0:667132a19341 | 291 | int32_t calculate_polynomial (int32_t x, int32_t y, uint8_t input_fraction, uint8_t output_fraction, uint8_t num_coeff, const Coeff_t *kp); |
stevew817 | 0:667132a19341 | 292 | |
stevew817 | 0:667132a19341 | 293 | /* Member variables */ |
stevew817 | 0:667132a19341 | 294 | I2C m_I2C; |
stevew817 | 0:667132a19341 | 295 | }; |
stevew817 | 0:667132a19341 | 296 | |
stevew817 | 0:667132a19341 | 297 | #endif |