Diff: bh1790glc.cpp

Revision:

1:32bb2624bed8

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bh1790glc.cpp	Fri Jun 16 11:56:37 2017 +0000
@@ -0,0 +1,121 @@
+/*
+The MIT License (MIT)
+Copyright (c) 2017 Rohm Semiconductor
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+
+#include "RegisterWriter/RegisterWriter/rohm_hal2.h"
+#include "RegisterWriter/RegisterWriter/RegisterWriter.h"
+
+#include "rohm-bh1790glc-driver/bh1790glc_registers.h"
+#include "rohm-bh1790glc-driver/bh1790glc.h"
+
+BH1790GLC::BH1790GLC(RegisterWriter &i2c_obj, uint8_t sad, uint8_t wai) : i2c_rw(i2c_obj) {
+    /* Note that bh1790glc writes need to be single write command, not two separate. */
+    _sad = sad;
+    _wai = wai;        
+}
+
+BH1790GLC::~BH1790GLC()
+{
+}
+
+/* Check if sensor is found and setup default configuration for default measurements
+ *
+ * @return error true/false
+ */
+int BH1790GLC::set_default_on(void)
+{
+    int error;
+    uint8_t id;
+    uint8_t part_id;
+    uint8_t setup[3];
+
+    error = i2c_rw.read_register(_sad, BH1790GLC_PART_ID, &part_id, 1);
+    error = error || i2c_rw.read_register(_sad, BH1790GLC_MANUFACTURER_ID, &id, 1);
+    if (error) {
+        DEBUG_printf("read error.\r\n");
+        return (error);
+    }
+
+    if (part_id != BH1790GLC_PART_ID_WIA_ID) {
+        DEBUG_printf("PartID [%02X] doesn't match BH1790GLC.\r\n", part_id);
+    } else {
+        DEBUG_printf("PartID [%02X] OK.\r\n", part_id);
+    }
+
+    if (id != BH1790GLC_MID_VAL) {
+        DEBUG_printf("Manufacturer id [%02X] doesn't match!\r\n", id);
+    } else {
+        DEBUG_printf("Manufacturer id [%02X] OK.\r\n", id);
+    }
+
+    setup[0] = (BH1790GLC_MEAS_CONTROL1_RDY_ENABLE | BH1790GLC_MEAS_CONTROL1_LED_LIGHTING_FREQ_128HZ | BH1790GLC_MEAS_CONTROL1_RCYCLE_32HZ);
+    setup[1] = (BH1790GLC_MEAS_CONTROL2_LED1_EN_PULSED | BH1790GLC_MEAS_CONTROL2_LED_ON_TIME_216T_OSC | BH1790GLC_MEAS_CONTROL2_LED_CURRENT_10MA);
+    setup[2] = BH1790GLC_MEAS_START_MEAS_ST_START;
+    error = i2c_rw.write_register(_sad, BH1790GLC_MEAS_CONTROL1, setup, (uint8_t)sizeof(setup));
+    if (error) {
+        DEBUG_printf("BH1790GLC_MEAS_CONTROL1 write failed.\r\n");
+    }
+
+    return (error);
+}
+/*
+ * @return error true/false
+ */
+int BH1790GLC::getresults_raw(uint8_t *data)
+{
+    return i2c_rw.read_register(_sad, BH1790GLC_DATAOUT_LEDOFF_L, data, 4);
+}
+
+/*
+ * @return error true/false
+ */
+int BH1790GLC::getresults(uint16_t *data)
+{
+    int error;
+    uint8_t val[4];
+
+    error = getresults_raw(val);
+    if (error) {
+        return error;
+    }
+    data[0] = ((unsigned short)val[1] << 8) | (val[0]);
+    data[1] = ((unsigned short)val[3] << 8) | (val[2]);
+
+    return false;
+}
+
+//int BH1790GLC::write(char memory_address, char *data, int size)
+//{
+//   int rc;
+//    rc = i2c_rw.write_register(_sad, memory_address, data, size );
+//    return !rc;
+//}
+//
+//int BH1790GLC::read(uint8_t memory_address, uint8_t *data, uint8_t size)
+//{
+//    int rc;
+//    rc = i2c_rw.read_register(_sad, memory_address, data, size);
+//    
+//    return !rc;
+//}
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