Thundersoft / Mbed OS BH1790GLC_for_TTMxx

BH1790GLC

BH1790GLC/bh1790glc.cpp@1:e9033991d204, 2019-03-21 (annotated)

Committer:
ThunderSoft
Date:
Thu Mar 21 08:52:45 2019 +0000
Revision:
1:e9033991d204
Add BH1790GLC code for TT_Mxx.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ThunderSoft 1:e9033991d204 1 /*
ThunderSoft 1:e9033991d204 2 The MIT License (MIT)
ThunderSoft 1:e9033991d204 3 Copyright (c) 2017 Rohm Semiconductor
ThunderSoft 1:e9033991d204 4
ThunderSoft 1:e9033991d204 5 Permission is hereby granted, free of charge, to any person obtaining a
ThunderSoft 1:e9033991d204 6 copy of this software and associated documentation files (the
ThunderSoft 1:e9033991d204 7 "Software"), to deal in the Software without restriction, including
ThunderSoft 1:e9033991d204 8 without limitation the rights to use, copy, modify, merge, publish,
ThunderSoft 1:e9033991d204 9 distribute, sublicense, and/or sell copies of the Software, and to
ThunderSoft 1:e9033991d204 10 permit persons to whom the Software is furnished to do so, subject to
ThunderSoft 1:e9033991d204 11 the following conditions:
ThunderSoft 1:e9033991d204 12
ThunderSoft 1:e9033991d204 13 The above copyright notice and this permission notice shall be included
ThunderSoft 1:e9033991d204 14 in all copies or substantial portions of the Software.
ThunderSoft 1:e9033991d204 15
ThunderSoft 1:e9033991d204 16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
ThunderSoft 1:e9033991d204 17 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
ThunderSoft 1:e9033991d204 18 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
ThunderSoft 1:e9033991d204 19 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
ThunderSoft 1:e9033991d204 20 CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
ThunderSoft 1:e9033991d204 21 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
ThunderSoft 1:e9033991d204 22 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
ThunderSoft 1:e9033991d204 23 */
ThunderSoft 1:e9033991d204 24
ThunderSoft 1:e9033991d204 25
ThunderSoft 1:e9033991d204 26 #include "bh1790glc.h"
ThunderSoft 1:e9033991d204 27
ThunderSoft 1:e9033991d204 28 BH1790GLC::BH1790GLC(RegisterWriter &i2c_obj, uint8_t sad, uint8_t wai) : i2c_rw(i2c_obj) {
ThunderSoft 1:e9033991d204 29 /* Note that bh1790glc writes need to be single write command, not two separate. */
ThunderSoft 1:e9033991d204 30 _sad = sad;
ThunderSoft 1:e9033991d204 31 _wai = wai;
ThunderSoft 1:e9033991d204 32 }
ThunderSoft 1:e9033991d204 33
ThunderSoft 1:e9033991d204 34 BH1790GLC::~BH1790GLC()
ThunderSoft 1:e9033991d204 35 {
ThunderSoft 1:e9033991d204 36 }
ThunderSoft 1:e9033991d204 37
ThunderSoft 1:e9033991d204 38 uint8_t BH1790GLC::getDeviceID()
ThunderSoft 1:e9033991d204 39 {
ThunderSoft 1:e9033991d204 40 uint8_t device_id;
ThunderSoft 1:e9033991d204 41 i2c_rw.read_register(_sad, BH1790GLC_PART_ID, &device_id, 1);
ThunderSoft 1:e9033991d204 42 return device_id;
ThunderSoft 1:e9033991d204 43 }
ThunderSoft 1:e9033991d204 44
ThunderSoft 1:e9033991d204 45 /* Check if sensor is found and setup default configuration for default measurements
ThunderSoft 1:e9033991d204 46 *
ThunderSoft 1:e9033991d204 47 * @return error true/false
ThunderSoft 1:e9033991d204 48 */
ThunderSoft 1:e9033991d204 49 int BH1790GLC::set_default_on(void)
ThunderSoft 1:e9033991d204 50 {
ThunderSoft 1:e9033991d204 51 int error;
ThunderSoft 1:e9033991d204 52 uint8_t id;
ThunderSoft 1:e9033991d204 53 uint8_t part_id;
ThunderSoft 1:e9033991d204 54 uint8_t setup[3];
ThunderSoft 1:e9033991d204 55
ThunderSoft 1:e9033991d204 56 error = i2c_rw.read_register(_sad, BH1790GLC_PART_ID, &part_id, 1);
ThunderSoft 1:e9033991d204 57 error = error || i2c_rw.read_register(_sad, BH1790GLC_MANUFACTURER_ID, &id, 1);
ThunderSoft 1:e9033991d204 58 if (error) {
ThunderSoft 1:e9033991d204 59 DEBUG_printf("read error.\r\n");
ThunderSoft 1:e9033991d204 60 return (error);
ThunderSoft 1:e9033991d204 61 }
ThunderSoft 1:e9033991d204 62
ThunderSoft 1:e9033991d204 63 if (part_id != BH1790GLC_PART_ID_WIA_ID) {
ThunderSoft 1:e9033991d204 64 DEBUG_printf("PartID [%02X] doesn't match BH1790GLC.\r\n", part_id);
ThunderSoft 1:e9033991d204 65 } else {
ThunderSoft 1:e9033991d204 66 DEBUG_printf("PartID [%02X] OK.\r\n", part_id);
ThunderSoft 1:e9033991d204 67 }
ThunderSoft 1:e9033991d204 68
ThunderSoft 1:e9033991d204 69 if (id != BH1790GLC_MID_VAL) {
ThunderSoft 1:e9033991d204 70 DEBUG_printf("Manufacturer id [%02X] doesn't match!\r\n", id);
ThunderSoft 1:e9033991d204 71 } else {
ThunderSoft 1:e9033991d204 72 DEBUG_printf("Manufacturer id [%02X] OK.\r\n", id);
ThunderSoft 1:e9033991d204 73 }
ThunderSoft 1:e9033991d204 74
ThunderSoft 1:e9033991d204 75 setup[0] = (BH1790GLC_MEAS_CONTROL1_RDY_ENABLE | BH1790GLC_MEAS_CONTROL1_LED_LIGHTING_FREQ_128HZ | BH1790GLC_MEAS_CONTROL1_RCYCLE_32HZ);
ThunderSoft 1:e9033991d204 76 setup[1] = (BH1790GLC_MEAS_CONTROL2_LED1_EN_PULSED | BH1790GLC_MEAS_CONTROL2_LED_ON_TIME_216T_OSC | BH1790GLC_MEAS_CONTROL2_LED_CURRENT_10MA);
ThunderSoft 1:e9033991d204 77 setup[2] = BH1790GLC_MEAS_START_MEAS_ST_START;
ThunderSoft 1:e9033991d204 78 error = i2c_rw.write_register(_sad, BH1790GLC_MEAS_CONTROL1, setup, (uint8_t)sizeof(setup));
ThunderSoft 1:e9033991d204 79 if (error) {
ThunderSoft 1:e9033991d204 80 DEBUG_printf("BH1790GLC_MEAS_CONTROL1 write failed.\r\n");
ThunderSoft 1:e9033991d204 81 }
ThunderSoft 1:e9033991d204 82
ThunderSoft 1:e9033991d204 83 return (error);
ThunderSoft 1:e9033991d204 84 }
ThunderSoft 1:e9033991d204 85 /*
ThunderSoft 1:e9033991d204 86 * @return error true/false
ThunderSoft 1:e9033991d204 87 */
ThunderSoft 1:e9033991d204 88 int BH1790GLC::getresults_raw(uint8_t *data)
ThunderSoft 1:e9033991d204 89 {
ThunderSoft 1:e9033991d204 90 return i2c_rw.read_register(_sad, BH1790GLC_DATAOUT_LEDOFF_L, data, 4);
ThunderSoft 1:e9033991d204 91 }
ThunderSoft 1:e9033991d204 92
ThunderSoft 1:e9033991d204 93 /*
ThunderSoft 1:e9033991d204 94 * @return error true/false
ThunderSoft 1:e9033991d204 95 */
ThunderSoft 1:e9033991d204 96 int BH1790GLC::getresults(uint16_t *data)
ThunderSoft 1:e9033991d204 97 {
ThunderSoft 1:e9033991d204 98 int error;
ThunderSoft 1:e9033991d204 99 uint8_t val[4];
ThunderSoft 1:e9033991d204 100
ThunderSoft 1:e9033991d204 101 error = getresults_raw(val);
ThunderSoft 1:e9033991d204 102 if (error) {
ThunderSoft 1:e9033991d204 103 return error;
ThunderSoft 1:e9033991d204 104 }
ThunderSoft 1:e9033991d204 105 data[0] = ((unsigned short)val[1] << 8) | (val[0]);
ThunderSoft 1:e9033991d204 106 data[1] = ((unsigned short)val[3] << 8) | (val[2]);
ThunderSoft 1:e9033991d204 107
ThunderSoft 1:e9033991d204 108 return false;
ThunderSoft 1:e9033991d204 109 }
ThunderSoft 1:e9033991d204 110
ThunderSoft 1:e9033991d204 111 //int BH1790GLC::write(char memory_address, char *data, int size)
ThunderSoft 1:e9033991d204 112 //{
ThunderSoft 1:e9033991d204 113 // int rc;
ThunderSoft 1:e9033991d204 114 // rc = i2c_rw.write_register(_sad, memory_address, data, size );
ThunderSoft 1:e9033991d204 115 // return !rc;
ThunderSoft 1:e9033991d204 116 //}
ThunderSoft 1:e9033991d204 117 //
ThunderSoft 1:e9033991d204 118 //int BH1790GLC::read(uint8_t memory_address, uint8_t *data, uint8_t size)
ThunderSoft 1:e9033991d204 119 //{
ThunderSoft 1:e9033991d204 120 // int rc;
ThunderSoft 1:e9033991d204 121 // rc = i2c_rw.read_register(_sad, memory_address, data, size);
ThunderSoft 1:e9033991d204 122 //
ThunderSoft 1:e9033991d204 123 // return !rc;
ThunderSoft 1:e9033991d204 124 //}