1051 lines
28 KiB
C
1051 lines
28 KiB
C
/****************************************************************************
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* boards/arm/cxd56xx/drivers/sensors/apds9930_scu.c
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*
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* Copyright 2018 Sony Semiconductor Solutions Corporation
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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 of Sony Semiconductor Solutions Corporation nor
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* the names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior written
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* 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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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <fixedmath.h>
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#include <errno.h>
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#include <debug.h>
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#include <arch/types.h>
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#include <nuttx/kmalloc.h>
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#include <nuttx/fs/fs.h>
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#include <nuttx/i2c/i2c_master.h>
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#include <nuttx/sensors/apds9930.h>
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#include <nuttx/irq.h>
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#include <arch/chip/scu.h>
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#if defined(CONFIG_I2C) && defined(CONFIG_SENSORS_APDS9930_SCU)
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define APDS9930_ADDR 0x39 /* I2C Slave Address */
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#define APDS9930_DEVICEID 0x39 /* Device ID */
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#define APDS9930_ALS_BYTESPERSAMPLE 4
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#define APDS9930_PS_BYTESPERSAMPLE 2
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#define APDS9930_ELEMENTSIZE 0
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/* APDS9930 Registers */
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#define APDS9930_CMD_TYPE_REPEAT 0x80
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#define APDS9930_CMD_TYPE_AUTOINC 0xA0
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#define APDS9930_CMD_TYPE_PSINTCLR 0xE5
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#define APDS9930_ENABLE 0x00
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#define APDS9930_ATIME 0x01
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#define APDS9930_PTIME 0x02
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#define APDS9930_WTIME 0x03
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#define APDS9930_AILTL 0x04
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#define APDS9930_AILTH 0x05
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#define APDS9930_AIHTL 0x06
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#define APDS9930_AIHTH 0x07
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#define APDS9930_PILTL 0x08
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#define APDS9930_PILTH 0x09
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#define APDS9930_PIHTL 0x0A
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#define APDS9930_PIHTH 0x0B
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#define APDS9930_PERS 0x0C
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#define APDS9930_CONFIG 0x0D
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#define APDS9930_PPULSE 0x0E
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#define APDS9930_CONTROL 0x0F
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#define APDS9930_ID 0x12
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#define APDS9930_STATUS 0x13
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#define APDS9930_CH0DATAL 0x14
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#define APDS9930_CH0DATAH 0x15
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#define APDS9930_CH1DATAL 0x16
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#define APDS9930_CH1DATAH 0x17
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#define APDS9930_PDATAL 0x18
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#define APDS9930_PDATAH 0x19
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#define APDS9930_POFFSET 0x1E
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/* Register ENABLE */
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#define APDS9930_ENABLE_SAI (1 << 6)
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#define APDS9930_ENABLE_PIEN (1 << 5)
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#define APDS9930_ENABLE_AIEN (1 << 4)
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#define APDS9930_ENABLE_WEN (1 << 3)
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#define APDS9930_ENABLE_PEN (1 << 2)
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#define APDS9930_ENABLE_AEN (1 << 1)
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#define APDS9930_ENABLE_PON (1 << 0)
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#define APDS9930_ENABLE_STANDBY 0x00
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/* Register ATIME */
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#define APDS9930_ATIME_VAL 0xff
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/* Register PTIME */
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#define APDS9930_PTIME_VAL 0xff
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/* Register WTIME */
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#define APDS9930_WTIME_VAL 0xff
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/* Register PPULSE */
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#define APDS9930_PPULSE_VAL 0x01
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/* Register CONTROL */
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#define APDS9930_CONTROL_PDRIVE_100MA (0 << 6)
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#define APDS9930_CONTROL_PDIODE_CH1 (2 << 4)
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#define APDS9930_CONTROL_PGAIN_X1 (0 << 2)
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#define APDS9930_CONTROL_AGAIN_X1 (0 << 0)
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/* PS threshold default value */
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#define APDS9930_PS_HT_DEFAULT 0x0300
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#define APDS9930_PS_LT_DEFAULT 0x0300
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/* Register PERS */
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#define APDS9930_PERS_PS_DEFAULT 2
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#define SETENABLE_TYPE_PS 0
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#define SETENABLE_TYPE_ALS 1
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#ifndef itemsof
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# define itemsof(array) (sizeof(array)/sizeof(array[0]))
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#endif
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/****************************************************************************
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* Private Type Definitions
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****************************************************************************/
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/**
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* @brief Structure for apds9930 device
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*/
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struct apds9930_dev_s
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{
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FAR struct i2c_master_s *i2c; /* I2C interface */
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uint8_t addr; /* I2C address */
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int port; /* I2C port */
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struct seq_s *seq; /* Sequencer instance */
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int minor; /* Minor device number */
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};
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/* Character driver methods */
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static int apds9930_open_als(FAR struct file *filep);
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static int apds9930_open_ps(FAR struct file *filep);
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static int apds9930_close_als(FAR struct file *filep);
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static int apds9930_close_ps(FAR struct file *filep);
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static ssize_t apds9930_read_als(FAR struct file *filep, FAR char *buffer,
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size_t buflen);
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static ssize_t apds9930_read_ps(FAR struct file *filep, FAR char *buffer,
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size_t buflen);
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static ssize_t apds9930_write(FAR struct file *filep, FAR const char *buffer,
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size_t buflen);
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static int apds9930_ioctl_als(FAR struct file *filep, int cmd,
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unsigned long arg);
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static int apds9930_ioctl_ps(FAR struct file *filep, int cmd,
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unsigned long arg);
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/* Ambient light sensor */
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static const struct file_operations g_apds9930alsfops =
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{
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apds9930_open_als, /* open */
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apds9930_close_als, /* close */
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apds9930_read_als, /* read */
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apds9930_write, /* write */
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0, /* seek */
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apds9930_ioctl_als, /* ioctl */
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#ifndef CONFIG_DISABLE_POLL
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0, /* poll */
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#endif
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0 /* unlink */
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};
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/* Proximity sensor */
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static const struct file_operations g_apds9930psfops =
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{
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apds9930_open_ps, /* open */
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apds9930_close_ps, /* close */
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apds9930_read_ps, /* read */
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apds9930_write, /* write */
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0, /* seek */
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apds9930_ioctl_ps, /* ioctl */
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#ifndef CONFIG_DISABLE_POLL
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0, /* poll */
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#endif
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0 /* unlink */
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};
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/* SCU instructions for pick ambient light sensing data. */
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static const uint16_t g_apds9930alsinst[] =
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{
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SCU_INST_SEND(APDS9930_CMD_TYPE_AUTOINC | APDS9930_CH0DATAL),
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SCU_INST_RECV(APDS9930_ALS_BYTESPERSAMPLE) | SCU_INST_LAST,
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};
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#ifndef CONFIG_SENSORS_APDS9930_PROXIMITY_INTERRUPT
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/* SCU instructions for pick proximity sensing data. */
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static const uint16_t g_apds9930psinst[] =
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{
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SCU_INST_SEND(APDS9930_CMD_TYPE_AUTOINC | APDS9930_PDATAL),
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SCU_INST_RECV(APDS9930_PS_BYTESPERSAMPLE) | SCU_INST_LAST,
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};
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#endif
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/* Reference count */
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static int g_als_refcnt = 0;
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#ifndef CONFIG_SENSORS_APDS9930_PROXIMITY_INTERRUPT
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static int g_ps_refcnt = 0;
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#endif
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/* Sequencer instance */
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static struct seq_s *g_als_seq = NULL;
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#ifndef CONFIG_SENSORS_APDS9930_PROXIMITY_INTERRUPT
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static struct seq_s *g_ps_seq = NULL;
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#endif
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#ifdef CONFIG_SENSORS_APDS9930_PROXIMITY_INTERRUPT
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/* Proximity interrupt config */
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static uint16_t g_ps_lthreshold = APDS9930_PS_LT_DEFAULT;
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static uint16_t g_ps_hthreshold = APDS9930_PS_HT_DEFAULT;
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static uint8_t g_ps_persistence = APDS9930_PERS_PS_DEFAULT << 4;
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#endif
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: apds9930_getreg8
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*
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* Description:
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* Read from an 8-bit APDS9930 register
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*
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****************************************************************************/
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static uint8_t apds9930_getreg8(FAR struct apds9930_dev_s *priv,
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uint8_t regaddr)
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{
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uint8_t regval = 0;
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uint16_t inst[2];
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/* Send register to read and get the next byte */
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inst[0] = SCU_INST_SEND(APDS9930_CMD_TYPE_REPEAT | regaddr);
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inst[1] = SCU_INST_RECV(1) | SCU_INST_LAST;
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scu_i2ctransfer(priv->port, priv->addr, inst, 2, ®val, 1);
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return regval;
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}
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/****************************************************************************
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* Name: apds9930_putreg8
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*
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* Description:
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* Write to an 8-bit APDS9930 register
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*
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****************************************************************************/
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static void apds9930_putreg8(FAR struct apds9930_dev_s *priv,
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uint8_t regaddr, uint8_t regval)
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{
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uint16_t inst[2];
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/* Send register address and set the value */
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inst[0] = SCU_INST_SEND(APDS9930_CMD_TYPE_REPEAT | regaddr);
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inst[1] = SCU_INST_SEND(regval) | SCU_INST_LAST;
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scu_i2ctransfer(priv->port, priv->addr, inst, 2, NULL, 0);
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}
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#ifdef CONFIG_SENSORS_APDS9930_PROXIMITY_INTERRUPT
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/****************************************************************************
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* Name: apds9930_getreg16
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*
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* Description:
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* Read from an 16-bit APDS9930 register
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*
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****************************************************************************/
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static uint16_t apds9930_getreg16(FAR struct apds9930_dev_s *priv,
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uint8_t regaddr)
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{
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uint16_t regval = 0;
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uint16_t inst[2];
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/* Send register to read and get the next byte */
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inst[0] = SCU_INST_SEND(APDS9930_CMD_TYPE_AUTOINC | regaddr);
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inst[1] = SCU_INST_RECV(2) | SCU_INST_LAST;
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scu_i2ctransfer(priv->port, priv->addr, inst, 2, (FAR uint8_t *)®val, 2);
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return regval;
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}
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/****************************************************************************
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* Name: apds9930_putreg16
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*
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* Description:
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* Write to an 16-bit APDS9930 register
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*
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****************************************************************************/
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static void apds9930_putreg16(FAR struct apds9930_dev_s *priv,
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uint8_t regaddr, uint16_t regval)
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{
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uint16_t inst[3];
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/* Send register address and set the value */
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inst[0] = SCU_INST_SEND(APDS9930_CMD_TYPE_AUTOINC | regaddr);
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inst[1] = SCU_INST_SEND((uint8_t)(regval & 0xff));
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inst[2] = SCU_INST_SEND((uint8_t)(regval >> 8)) | SCU_INST_LAST;
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scu_i2ctransfer(priv->port, priv->addr, inst, 3, NULL, 0);
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}
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/****************************************************************************
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* Name: apds9930_intclr
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*
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* Description:
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* APDS9930 Interrupt clear
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*
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****************************************************************************/
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static void apds9930_intclr(FAR struct apds9930_dev_s *priv)
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{
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uint16_t inst = SCU_INST_SEND(APDS9930_CMD_TYPE_PSINTCLR) | SCU_INST_LAST;
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/* Send command */
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scu_i2ctransfer(priv->port, priv->addr, &inst, 1, NULL, 0);
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}
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#endif
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/****************************************************************************
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* Name: apds9930_checkid
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*
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* Description:
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* Read and verify the APDS9930 chip ID
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*
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****************************************************************************/
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static int apds9930_checkid(FAR struct apds9930_dev_s *priv)
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{
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uint8_t id;
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/* Read Device ID */
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id = apds9930_getreg8(priv, APDS9930_ID);
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if (id != APDS9930_DEVICEID)
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{
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/* Device ID is not Correct */
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snerr("Wrong Device ID! %02x (Exp:%02x)\n", id, APDS9930_DEVICEID);
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return -ENODEV;
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}
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return OK;
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}
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/****************************************************************************
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* Name: apds9930_setenable
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*
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* Description:
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* Set MODE_CONTROL register
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*
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****************************************************************************/
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static void apds9930_setenable(FAR struct apds9930_dev_s *priv,
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uint8_t type, bool enable)
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{
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uint8_t val;
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uint8_t checkbit;
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uint8_t setbit;
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irqstate_t flags;
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if (type == SETENABLE_TYPE_PS)
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{
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checkbit = APDS9930_ENABLE_AEN;
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setbit = APDS9930_ENABLE_PEN;
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}
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else
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{
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checkbit = APDS9930_ENABLE_PEN;
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setbit = APDS9930_ENABLE_AEN;
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}
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flags = enter_critical_section();
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val = apds9930_getreg8(priv, APDS9930_ENABLE);
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if (val & checkbit)
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{
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if (enable)
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{
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val |= setbit;
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#ifdef CONFIG_SENSORS_APDS9930_PROXIMITY_INTERRUPT
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if (type == SETENABLE_TYPE_PS)
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{
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val |= APDS9930_ENABLE_PIEN;
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}
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#endif
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}
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else
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{
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val &= ~setbit;
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#ifdef CONFIG_SENSORS_APDS9930_PROXIMITY_INTERRUPT
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if (type == SETENABLE_TYPE_PS)
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{
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val &= ~APDS9930_ENABLE_PIEN;
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}
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#endif
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}
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}
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else
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{
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if (enable)
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{
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val = APDS9930_ENABLE_PON | APDS9930_ENABLE_WEN | setbit;
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#ifdef CONFIG_SENSORS_APDS9930_PROXIMITY_INTERRUPT
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if (type == SETENABLE_TYPE_PS)
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{
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val |= APDS9930_ENABLE_PIEN;
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}
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#endif
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}
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else
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{
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val = APDS9930_ENABLE_STANDBY;
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}
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}
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apds9930_putreg8(priv, APDS9930_ENABLE, val);
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leave_critical_section(flags);
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}
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/****************************************************************************
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* Name: apds9930als_seqinit
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*
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* Description:
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* Initialize SCU sequencer.
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*
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****************************************************************************/
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static int apds9930als_seqinit(FAR struct apds9930_dev_s *priv)
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{
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DEBUGASSERT(g_als_seq == NULL);
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/* Open sequencer */
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g_als_seq = seq_open(SEQ_TYPE_NORMAL, SCU_BUS_I2C0);
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if (!g_als_seq)
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{
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return -ENOENT;
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}
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priv->seq = g_als_seq;
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seq_setaddress(priv->seq, priv->addr);
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/* Set instruction and sample data information to sequencer */
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seq_setinstruction(priv->seq, g_apds9930alsinst, itemsof(g_apds9930alsinst));
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seq_setsample(priv->seq, APDS9930_ALS_BYTESPERSAMPLE, 0, APDS9930_ELEMENTSIZE,
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false);
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return OK;
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}
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|
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#ifndef CONFIG_SENSORS_APDS9930_PROXIMITY_INTERRUPT
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/****************************************************************************
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* Name: apds9930ps_seqinit
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*
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* Description:
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* Initialize SCU sequencer.
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*
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****************************************************************************/
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|
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static int apds9930ps_seqinit(FAR struct apds9930_dev_s *priv)
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{
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DEBUGASSERT(g_ps_seq == NULL);
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|
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/* Open sequencer */
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g_ps_seq = seq_open(SEQ_TYPE_NORMAL, SCU_BUS_I2C0);
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if (!g_ps_seq)
|
|
{
|
|
return -ENOENT;
|
|
}
|
|
|
|
priv->seq = g_ps_seq;
|
|
|
|
seq_setaddress(priv->seq, priv->addr);
|
|
|
|
/* Set instruction and sample data information to sequencer */
|
|
|
|
seq_setinstruction(priv->seq, g_apds9930psinst, itemsof(g_apds9930psinst));
|
|
seq_setsample(priv->seq, APDS9930_PS_BYTESPERSAMPLE, 0, APDS9930_ELEMENTSIZE,
|
|
false);
|
|
|
|
return OK;
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: apds9930_open_als
|
|
*
|
|
* Description:
|
|
* This function is called whenever the APDS9930 device is opened.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int apds9930_open_als(FAR struct file *filep)
|
|
{
|
|
FAR struct inode *inode = filep->f_inode;
|
|
FAR struct apds9930_dev_s *priv = inode->i_private;
|
|
|
|
if (g_als_refcnt == 0)
|
|
{
|
|
int ret;
|
|
|
|
ret = apds9930als_seqinit(priv);
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
apds9930_setenable(priv, SETENABLE_TYPE_ALS, true);
|
|
}
|
|
else
|
|
{
|
|
/* Set existing sequencer */
|
|
|
|
priv->seq = g_als_seq;
|
|
}
|
|
|
|
g_als_refcnt++;
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: apds9930_open_ps
|
|
*
|
|
* Description:
|
|
* This function is called whenever the APDS9930 device is opened.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int apds9930_open_ps(FAR struct file *filep)
|
|
{
|
|
#ifndef CONFIG_SENSORS_APDS9930_PROXIMITY_INTERRUPT
|
|
FAR struct inode *inode = filep->f_inode;
|
|
FAR struct apds9930_dev_s *priv = inode->i_private;
|
|
|
|
if (g_ps_refcnt == 0)
|
|
{
|
|
int ret;
|
|
|
|
ret = apds9930ps_seqinit(priv);
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
apds9930_setenable(priv, SETENABLE_TYPE_PS, true);
|
|
}
|
|
else
|
|
{
|
|
/* Set existing sequencer */
|
|
|
|
priv->seq = g_ps_seq;
|
|
}
|
|
|
|
g_ps_refcnt++;
|
|
#endif
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: apds9930_close_als
|
|
*
|
|
* Description:
|
|
* This routine is called when the APDS9930 device is closed.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int apds9930_close_als(FAR struct file *filep)
|
|
{
|
|
FAR struct inode *inode = filep->f_inode;
|
|
FAR struct apds9930_dev_s *priv = inode->i_private;
|
|
|
|
g_als_refcnt--;
|
|
|
|
seq_ioctl(priv->seq, priv->minor, SCUIOC_STOP, 0);
|
|
|
|
if (g_als_refcnt == 0)
|
|
{
|
|
apds9930_setenable(priv, SETENABLE_TYPE_ALS, false);
|
|
|
|
seq_close(g_als_seq);
|
|
g_als_seq = NULL;
|
|
}
|
|
else
|
|
{
|
|
seq_ioctl(priv->seq, priv->minor, SCUIOC_FREEFIFO, 0);
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: apds9930_close_ps
|
|
*
|
|
* Description:
|
|
* This routine is called when the APDS9930 device is closed.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int apds9930_close_ps(FAR struct file *filep)
|
|
{
|
|
#ifndef CONFIG_SENSORS_APDS9930_PROXIMITY_INTERRUPT
|
|
FAR struct inode *inode = filep->f_inode;
|
|
FAR struct apds9930_dev_s *priv = inode->i_private;
|
|
|
|
g_ps_refcnt--;
|
|
|
|
seq_ioctl(priv->seq, priv->minor, SCUIOC_STOP, 0);
|
|
|
|
if (g_ps_refcnt == 0)
|
|
{
|
|
apds9930_setenable(priv, SETENABLE_TYPE_PS, false);
|
|
|
|
if (g_ps_seq)
|
|
{
|
|
seq_close(g_ps_seq);
|
|
g_ps_seq = NULL;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
seq_ioctl(priv->seq, priv->minor, SCUIOC_FREEFIFO, 0);
|
|
}
|
|
#endif
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: apds9930_read_als
|
|
****************************************************************************/
|
|
|
|
static ssize_t apds9930_read_als(FAR struct file *filep, FAR char *buffer,
|
|
size_t len)
|
|
{
|
|
FAR struct inode *inode = filep->f_inode;
|
|
FAR struct apds9930_dev_s *priv = inode->i_private;
|
|
|
|
len = len / APDS9930_ALS_BYTESPERSAMPLE * APDS9930_ALS_BYTESPERSAMPLE;
|
|
len = seq_read(priv->seq, priv->minor, buffer, len);
|
|
|
|
return len;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: apds9930_read_ps
|
|
****************************************************************************/
|
|
|
|
static ssize_t apds9930_read_ps(FAR struct file *filep, FAR char *buffer,
|
|
size_t len)
|
|
{
|
|
FAR struct inode *inode = filep->f_inode;
|
|
FAR struct apds9930_dev_s *priv = inode->i_private;
|
|
|
|
len = len / APDS9930_PS_BYTESPERSAMPLE * APDS9930_PS_BYTESPERSAMPLE;
|
|
|
|
#ifdef CONFIG_SENSORS_APDS9930_PROXIMITY_INTERRUPT
|
|
if (len)
|
|
{
|
|
len = APDS9930_PS_BYTESPERSAMPLE;
|
|
*(FAR uint16_t *)buffer = apds9930_getreg16(priv, APDS9930_PDATAL);
|
|
}
|
|
#else
|
|
len = seq_read(priv->seq, priv->minor, buffer, len);
|
|
#endif
|
|
|
|
return len;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: apds9930_write
|
|
****************************************************************************/
|
|
|
|
static ssize_t apds9930_write(FAR struct file *filep, FAR const char *buffer,
|
|
size_t buflen)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: apds9930_ioctl_als
|
|
****************************************************************************/
|
|
|
|
static int apds9930_ioctl_als(FAR struct file *filep, int cmd,
|
|
unsigned long arg)
|
|
{
|
|
FAR struct inode *inode = filep->f_inode;
|
|
FAR struct apds9930_dev_s *priv = inode->i_private;
|
|
int ret = OK;
|
|
|
|
switch (cmd)
|
|
{
|
|
default:
|
|
{
|
|
if (_SCUIOCVALID(cmd))
|
|
{
|
|
/* Redirect SCU commands */
|
|
|
|
ret = seq_ioctl(priv->seq, priv->minor, cmd, arg);
|
|
}
|
|
else
|
|
{
|
|
snerr("Unrecognized cmd: %d\n", cmd);
|
|
ret = - ENOTTY;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: apds9930_ioctl_ps
|
|
****************************************************************************/
|
|
|
|
static int apds9930_ioctl_ps(FAR struct file *filep, int cmd,
|
|
unsigned long arg)
|
|
{
|
|
FAR struct inode *inode = filep->f_inode;
|
|
FAR struct apds9930_dev_s *priv = inode->i_private;
|
|
int ret = OK;
|
|
|
|
switch (cmd)
|
|
{
|
|
#ifdef CONFIG_SENSORS_APDS9930_PROXIMITY_INTERRUPT
|
|
case SNIOC_SETPSLTHRESHOLD:
|
|
{
|
|
g_ps_lthreshold = (uint16_t)arg;
|
|
}
|
|
break;
|
|
|
|
case SNIOC_SETPSHTHRESHOLD:
|
|
{
|
|
g_ps_hthreshold = (uint16_t)arg;
|
|
}
|
|
break;
|
|
|
|
case SNIOC_SETPSPERSISTENCE:
|
|
{
|
|
g_ps_persistence = ((uint8_t)arg & 0xf) << 4;
|
|
}
|
|
break;
|
|
|
|
case SNIOC_STARTPSMEASUREMENT:
|
|
{
|
|
apds9930_putreg16(priv, APDS9930_PILTL, g_ps_lthreshold);
|
|
apds9930_putreg16(priv, APDS9930_PIHTL, g_ps_hthreshold);
|
|
apds9930_putreg8(priv, APDS9930_PERS, g_ps_persistence);
|
|
apds9930_setenable(priv, SETENABLE_TYPE_PS, true);
|
|
}
|
|
break;
|
|
|
|
case SNIOC_STOPPSMEASUREMENT:
|
|
{
|
|
apds9930_setenable(priv, SETENABLE_TYPE_PS, false);
|
|
}
|
|
break;
|
|
|
|
case SNIOC_GETINTSTATUS:
|
|
{
|
|
FAR uint8_t intstatus = apds9930_getreg8(priv, APDS9930_STATUS);
|
|
*(FAR uint8_t *)(uintptr_t)arg = intstatus;
|
|
sninfo("Get proximity IntStatus 0x%02x\n", intstatus);
|
|
}
|
|
break;
|
|
|
|
case SNIOC_CLEARPSINT:
|
|
{
|
|
apds9930_intclr(priv);
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
{
|
|
if (_SCUIOCVALID(cmd))
|
|
{
|
|
#ifndef CONFIG_SENSORS_APDS9930_PROXIMITY_INTERRUPT
|
|
/* Redirect SCU commands */
|
|
|
|
ret = seq_ioctl(priv->seq, priv->minor, cmd, arg);
|
|
#else
|
|
snerr("Unregistered SCU sequencer cmd: %d\n", cmd);
|
|
ret = - ENOTTY;
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
snerr("Unrecognized cmd: %d\n", cmd);
|
|
ret = - ENOTTY;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: apds9930_init
|
|
*
|
|
* Description:
|
|
* Initialize the APDS9930 device
|
|
*
|
|
* Input Parameters:
|
|
* i2c - An instance of the I2C interface to use to communicate with
|
|
* APDS9930
|
|
* port - I2C port (0 or 1)
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) on success; a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int apds9930_init(FAR struct i2c_master_s *i2c, int port)
|
|
{
|
|
FAR struct apds9930_dev_s tmp;
|
|
FAR struct apds9930_dev_s *priv = &tmp;
|
|
int ret;
|
|
uint8_t val;
|
|
|
|
/* Setup temporary device structure for initialization */
|
|
|
|
priv->i2c = i2c;
|
|
priv->addr = APDS9930_ADDR;
|
|
priv->port = port;
|
|
|
|
/* Check Device ID */
|
|
|
|
ret = apds9930_checkid(priv);
|
|
if (ret < 0)
|
|
{
|
|
snerr("Failed to register driver: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
/* Disable and power down */
|
|
|
|
val = APDS9930_ENABLE_STANDBY;
|
|
apds9930_putreg8(priv, APDS9930_ENABLE, val);
|
|
|
|
/* ALS ADC time */
|
|
|
|
val = APDS9930_ATIME_VAL;
|
|
apds9930_putreg8(priv, APDS9930_ATIME, val);
|
|
|
|
/* PS ADC time */
|
|
|
|
val = APDS9930_PTIME_VAL;
|
|
apds9930_putreg8(priv, APDS9930_PTIME, val);
|
|
|
|
/* Wait time */
|
|
|
|
val = APDS9930_WTIME_VAL;
|
|
apds9930_putreg8(priv, APDS9930_WTIME, val);
|
|
|
|
/* PS Pulse count */
|
|
|
|
val = APDS9930_PPULSE_VAL;
|
|
apds9930_putreg8(priv, APDS9930_PPULSE, val);
|
|
|
|
/* Control */
|
|
|
|
val = APDS9930_CONTROL_PDRIVE_100MA | APDS9930_CONTROL_PDIODE_CH1 |
|
|
APDS9930_CONTROL_PGAIN_X1 | APDS9930_CONTROL_AGAIN_X1;
|
|
apds9930_putreg8(priv, APDS9930_CONTROL, val);
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: apds9930als_register
|
|
*
|
|
* Description:
|
|
* Register the APDS9930 ambient light sensor character device as 'devpath'
|
|
*
|
|
* Input Parameters:
|
|
* devpath - The full path to the driver to register. E.g., "/dev/light0"
|
|
* minor - minor device number
|
|
* i2c - An instance of the I2C interface to use to communicate with
|
|
* APDS9930
|
|
* port - I2C port (0 or 1)
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) on success; a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int apds9930als_register(FAR const char *devpath, int minor,
|
|
FAR struct i2c_master_s *i2c, int port)
|
|
{
|
|
FAR struct apds9930_dev_s *priv;
|
|
char path[16];
|
|
int ret;
|
|
|
|
/* Initialize the APDS9930 device structure */
|
|
|
|
priv = (FAR struct apds9930_dev_s *)
|
|
kmm_malloc(sizeof(struct apds9930_dev_s));
|
|
if (!priv)
|
|
{
|
|
snerr("Failed to allocate instance\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
priv->i2c = i2c;
|
|
priv->addr = APDS9930_ADDR;
|
|
priv->port = port;
|
|
priv->seq = NULL;
|
|
priv->minor = minor;
|
|
|
|
/* Register the character driver */
|
|
|
|
snprintf(path, sizeof(path), "%s%d", devpath, minor);
|
|
ret = register_driver(path, &g_apds9930alsfops, 0666, priv);
|
|
if (ret < 0)
|
|
{
|
|
snerr("Failed to register driver: %d\n", ret);
|
|
kmm_free(priv);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: apds9930ps_register
|
|
*
|
|
* Description:
|
|
* Register the APDS9930 proximity sensor character device as 'devpath'
|
|
*
|
|
* Input Parameters:
|
|
* devpath - The full path to the driver to register. E.g., "/dev/proxim0"
|
|
* minor - minor device number
|
|
* i2c - An instance of the I2C interface to use to communicate with
|
|
* APDS9930
|
|
* port - I2C port (0 or 1)
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) on success; a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int apds9930ps_register(FAR const char *devpath, int minor,
|
|
FAR struct i2c_master_s *i2c, int port)
|
|
{
|
|
FAR struct apds9930_dev_s *priv;
|
|
char path[16];
|
|
int ret;
|
|
|
|
/* Initialize the APDS9930 device structure */
|
|
|
|
priv = (FAR struct apds9930_dev_s *)
|
|
kmm_malloc(sizeof(struct apds9930_dev_s));
|
|
if (!priv)
|
|
{
|
|
snerr("Failed to allocate instance\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
priv->i2c = i2c;
|
|
priv->addr = APDS9930_ADDR;
|
|
priv->port = port;
|
|
priv->seq = NULL;
|
|
priv->minor = minor;
|
|
|
|
/* Register the character driver */
|
|
|
|
snprintf(path, sizeof(path), "%s%d", devpath, minor);
|
|
ret = register_driver(path, &g_apds9930psfops, 0666, priv);
|
|
if (ret < 0)
|
|
{
|
|
snerr("Failed to register driver: %d\n", ret);
|
|
kmm_free(priv);
|
|
}
|
|
|
|
sninfo("APDS9930 proximity sensor driver loaded successfully!\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
#endif /* CONFIG_I2C && CONFIG_SENSORS_APDS9930_SCU */
|