forked from nuttx/nuttx-update
drivers/input: add Cypress MBR3108 CapSense touch button driver
This commit is contained in:
Juha Niskanen
Gregory Nutt
parent
b8b9309d2b
commit
80cc19d6b0
4 changed files with 1324 additions and 0 deletions
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@ -322,6 +322,30 @@ config STMPE811_REGDEBUG
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endif # INPUT_STMPE811
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config INPUT_CYPRESS_MBR3108
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bool "Enable Cypress MBR3108 CapSense driver"
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default n
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---help---
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Enable support for Cypress MBR3108 CapSense touch button & proximity
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input sensor.
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if INPUT_CYPRESS_MBR3108
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config INPUT_CYPRESS_MBR3108_DEBUG
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bool "Enable debug support for Cypress sensor"
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default n
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depends on DEBUG_FEATURES
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---help---
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Enable debugging traces for MBR3108 driver
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config INPUT_CYPRESS_MBR3108_NPOLLWAITERS
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int "Number of waiters to poll"
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default 1
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---help---
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Maximum number of threads that can be waiting on poll()
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endif # INPUT_CYPRESS_MBR3108
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config BUTTONS
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bool "Button Inputs"
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default n
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@ -71,6 +71,10 @@ ifneq ($(CONFIG_INPUT_STMPE811_TEMP_DISABLE),y)
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endif
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endif
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ifeq ($(CONFIG_INPUT_CYPRESS_MBR3108),y)
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CSRCS += cypress_mbr3108.c
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endif
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ifeq ($(CONFIG_BUTTONS),y)
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CSRCS += button_upper.c
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ifeq ($(CONFIG_BUTTONS_LOWER),y)
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1157
drivers/input/cypress_mbr3108.c
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1157
drivers/input/cypress_mbr3108.c
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File diff suppressed because it is too large
Load diff
139
include/nuttx/input/cypress_mbr3108.h
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139
include/nuttx/input/cypress_mbr3108.h
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@ -0,0 +1,139 @@
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/****************************************************************************
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* include/nuttx/input/cypress_mbr3108.c
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*
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* Copyright (C) 2014 Haltian Ltd. All rights reserved.
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* Author: Jussi Kivilinna <jussi.kivilinna@haltian.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __INCLUDE_NUTTX_INPUT_CYPRESS_MBR3108_H_
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#define __INCLUDE_NUTTX_INPUT_CYPRESS_MBR3108_H_
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/compiler.h>
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#include <stdbool.h>
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#include <stdint.h>
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* Sensor configuration for Cypress MBR3108 device */
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begin_packed_struct struct mbr3108_sensor_conf_s
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{
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uint8_t conf_data[128]; /* Sensor configuration, generated with EZ-Click. */
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} end_packed_struct;
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/* Debug configuration */
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begin_packed_struct struct mbr3108_debug_conf_s
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{
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bool debug_mode; /* Configure to debug mode if 'true'. */
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uint8_t debug_sensor_id; /* Sensor to read in debug mode. */
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} end_packed_struct;
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/* Write commands to MBR3108 driver. */
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begin_packed_struct enum mbr3108_cmd_e
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{
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CYPRESS_MBR3108_CMD_SENSOR_CONF = -3,
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CYPRESS_MBR3108_CMD_DEBUG_CONF,
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CYPRESS_MBR3108_CMD_CLEAR_LATCHED,
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} end_packed_struct;
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/* CYPRESS_MBR3108_CMD_SENSOR_CONF command structure. Used to reconfigure
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* chip with new configuration generated using EZ-Click tool. */
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begin_packed_struct struct mbr3108_cmd_sensor_conf_s
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{
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enum mbr3108_cmd_e id;
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struct mbr3108_sensor_conf_s conf;
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} end_packed_struct;
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/* CYPRESS_MBR3108_CMD_DEBUG_CONF command structure. Use to enable debug
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* output from chip/sensor, see 'struct mbr3108_sensor_data_s'. */
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begin_packed_struct struct mbr3108_cmd_debug_conf_s
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{
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enum mbr3108_cmd_e id;
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struct mbr3108_debug_conf_s conf;
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} end_packed_struct;
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/* Sensor status output */
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begin_packed_struct struct mbr3108_sensor_status_s
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{
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unsigned int button:8; /* MBR3108 has maximum of 8 button sensors
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* configurable.
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* Each bit in this field indicate if
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* corresponding button is pressed. */
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unsigned int latched_button:8;
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unsigned int proximity:2; /* MBR3108 has maximum of 2 proximity
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* sensors configurable. */
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unsigned int latched_proximity:2;
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} end_packed_struct;
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/* Sensor debug data output */
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begin_packed_struct struct mbr3108_sensor_debug_s
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{
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uint8_t sensor_total_capacitance;
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uint16_t sensor_diff_counts;
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uint16_t sensor_baseline;
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uint16_t sensor_raw_counts;
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uint16_t sensor_average_counts;
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} end_packed_struct;
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/* Board configuration */
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struct mbr3108_board_s
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{
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int (*irq_attach) (FAR struct mbr3108_board_s *state, xcpt_t isr, FAR void *arg);
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void (*irq_enable) (FAR struct mbr3108_board_s *state, bool enable);
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int (*set_power) (FAR struct mbr3108_board_s *state, bool on);
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};
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/* Device registration */
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int cypress_mbr3108_register(FAR const char *devpath,
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FAR struct i2c_master_s *dev,
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uint8_t i2c_devaddr,
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struct mbr3108_board_s *board_config,
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const struct mbr3108_sensor_conf_s *sensor_conf);
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#endif /* __INCLUDE_NUTTX_INPUT_CYPRESS_MBR3108_H_ */
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