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https://github.com/apache/nuttx.git
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Support for MAX1161X family of I2C 12 bit ADC chips:
MAX11612: 4 channels VCC=5V0 Int VRef=4.096V MAX11613: 4 channels VCC=3V3 Int VRef=2.048V MAX11614: 8 channels VCC=5V0 Int VRef=4.096V MAX11615: 8 channels VCC=3V3 Int VRef=2.048V MAX11616: 12 channels VCC=5V0 Int VRef=4.096V MAX11617: 12 channels VCC=3V3 Int VRef=2.048V Note: The chips' auto-scanning feature is not supported in this revision.
This commit is contained in:
Frank-Christian Kruegel
committed by
Xiang Xiao
Xiang Xiao
parent
e70bff723b
commit
bf5fa5557d
@@ -298,6 +298,22 @@ FAR struct adc_dev_s *lmp92001_adc_initialize(FAR struct i2c_master_s *i2c,
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FAR struct adc_dev_s *ads7828_initialize(FAR struct i2c_master_s *i2c,
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uint8_t addr);
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/****************************************************************************
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* Name: max1161x_initialize
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*
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* Description:
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* Initialize ADC
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*
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* Input Parameters:
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* i2c - Pointer to a valid I2C master struct.
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*
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* Returned Value:
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* Valid MX1161X device structure reference on success; a NULL on failure
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*
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****************************************************************************/
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FAR struct adc_dev_s *max1161x_initialize(FAR struct i2c_master_s *i2c);
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#if defined(__cplusplus)
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}
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#endif
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@@ -82,13 +82,12 @@
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/* See include/nuttx/analog/lm92001.h */
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#define AN_LMP92001_FIRST (AN_FIRST + AN_NCMDS + AN_ADS2142_NCMDS)
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#define AN_LMP92001_FIRST (AN_ADS2142_FIRST + AN_ADS2142_NCMDS)
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#define AN_LMP92001_NCMDS 7
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/* See include/nuttx/analog/ads7828.h */
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#define AN_ADS7828_FIRST (AN_FIRST + AN_NCMDS + AN_ADS2142_NCMDS + \
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AN_LMP92001_NCMDS)
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#define AN_ADS7828_FIRST (AN_LMP92001_FIRST + AN_LMP92001_NCMDS)
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#define AN_ADS7828_NCMDS 6
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/* See arch/arm/src/stm32l4/stm32l4_adc.h */
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@@ -96,6 +95,11 @@
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#define AN_STM32L4_FIRST (AN_ADS7828_FIRST + AN_ADS7828_NCMDS)
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#define AN_STM32L4_NCMDS 2
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/* See include/nuttx/analog/max1161x.h */
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#define AN_MAX1161X_FIRST (AN_STM32L4_FIRST + AN_STM32L4_NCMDS)
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#define AN_MAX1161X_NCMDS 8
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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@@ -0,0 +1,122 @@
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/****************************************************************************
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* include/nuttx/analog/max1161x.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __INCLUDE_NUTTX_ANALOG_MAX1161X_H
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#define __INCLUDE_NUTTX_ANALOG_MAX1161X_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/analog/ioctl.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* IOCTL Commands
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* Cmd: ANIOC_MAX1161X_SET_REF Arg: enum max1161x_ref_e
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* Cmd: ANIOC_MAX1161X_SET_CLOCK Arg: enum max1161x_clock_e
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* Cmd: ANIOC_MAX1161X_SET_UNIBIP Arg: enum max1161x_unibip_e
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* Cmd: ANIOC_MAX1161X_SET_SCAN Arg: enum max1161x_scan_e
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* Cmd: ANIOC_MAX1161X_ADD_CHAN Arg: uint8_t value
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* Cmd: ANIOC_MAX1161X_REMOVE_CHAN Arg: uint8_t value
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* Cmd: ANIOC_MAX1161X_SET_SNGDIF Arg: enum max1161x_sngdif_e
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* Cmd: ANIOC_MAX1161X_READ_CHANNEL Arg: struct adc_msg_s *channel
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*/
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#define ANIOC_MAX1161X_SET_REF _ANIOC(AN_MAX1161X_FIRST + 0)
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#define ANIOC_MAX1161X_SET_CLOCK _ANIOC(AN_MAX1161X_FIRST + 1)
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#define ANIOC_MAX1161X_SET_UNIBIP _ANIOC(AN_MAX1161X_FIRST + 2)
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#define ANIOC_MAX1161X_SET_SCAN _ANIOC(AN_MAX1161X_FIRST + 3)
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#define ANIOC_MAX1161X_ADD_CHAN _ANIOC(AN_MAX1161X_FIRST + 4)
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#define ANIOC_MAX1161X_REMOVE_CHAN _ANIOC(AN_MAX1161X_FIRST + 5)
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#define ANIOC_MAX1161X_SET_SNGDIF _ANIOC(AN_MAX1161X_FIRST + 6)
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#define ANIOC_MAX1161X_READ_CHANNEL _ANIOC(AN_MAX1161X_FIRST + 7)
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* Setup Byte */
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/****************************************************************************
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* +----+----+----+------+---------+---------+---------------+
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* |SEL2|SEL1|SEL0| VREF | Ref Pin | Ref Dir | Int Ref State |
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* +----+----+----+------+---------+---------+---------------+
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* | 0 | 0 | x | VDD | AIN | NC | off |
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* | 0 | 1 | x | EXT | RIN | IN | off |
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* | 1 | 0 | 0 | INT | AIN | NC | off |
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* | 1 | 0 | 1 | INT | AIN | NC | on |
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* | 1 | 1 | 0 | INT | ROUT | OUT | off |
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* | 1 | 1 | 1 | INT | ROUT | OUT | on |
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* +----+----+----+------+---------+---------+---------------+
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****************************************************************************/
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enum max1161x_ref_e
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{
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MAX1161X_REF_VDD_AIN_NC_OFF = 0u,
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MAX1161X_REF_EXT_RIN_IN_OFF = 2u,
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MAX1161X_REF_INT_AIN_NC_OFF = 4u,
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MAX1161X_REF_INT_AIN_NC_ON = 5u,
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MAX1161X_REF_INT_ROUT_OUT_OFF = 6u,
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MAX1161X_REF_INT_ROUT_OUT_ON = 7u,
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};
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enum max1161x_clock_e
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{
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MAX1161X_CLOCK_INT = 0u,
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MAX1161X_CLOCK_EXT
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};
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enum max1161x_unibip_e
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{
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MAX1161X_UNIPOLAR = 0u,
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MAX1161X_BIPOLAR
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};
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enum max1161x_reset_e
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{
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MAX1161X_NO_RESET = 0u,
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MAX1161X_RESET
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};
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/* Configuration Byte */
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enum max1161x_scan_e
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{
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MAX1161X_SCAN_FROM_ZERO = 0u,
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MAX1161X_SCAN_EIGHT_TIMES,
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MAX1161X_SCAN_UPPER,
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MAX1161X_SCAN_NONE
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};
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enum max1161x_sngdif_e
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{
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MAX1161X_DIFFERENTIAL = 0u,
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MAX1161X_SINGLE_ENDED
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};
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#endif /* __INCLUDE_NUTTX_ANALOG_MAX1161X_H */
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