201 lines
6 KiB
C
201 lines
6 KiB
C
/*
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* Copyright (C) 2012, Samsung Electronics Co. Ltd. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include "adsp.h"
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#define VENDOR "BOSCH"
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#define CHIP_ID "BMI168"
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#define GYRO_SELFTEST_TRY_CNT 7
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#define RAWDATA_TIMER_MS 200
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#define RAWDATA_TIMER_MARGIN_MS 20
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#define SELFTEST_MAX_LIMITATION (172)
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#define SELFTEST_MIN_LIMITATION SELFTEST_MAX_LIMITATION * -1
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s64 get_time_nanossec(void)
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{
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struct timespec ts;
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ktime_get_ts(&ts);
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return timespec_to_ns(&ts);
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}
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static ssize_t gyro_vendor_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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return sprintf(buf, "%s\n", VENDOR);
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}
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static ssize_t gyro_name_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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return sprintf(buf, "%s\n", CHIP_ID);
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}
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static ssize_t gyro_raw_data_read(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct adsp_data *data = dev_get_drvdata(dev);
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if (adsp_start_raw_data(ADSP_FACTORY_GYRO) == false)
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return snprintf(buf, PAGE_SIZE, "%d,%d,%d\n", 0, 0, 0);
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return snprintf(buf, PAGE_SIZE, "%d,%d,%d\n",
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data->sensor_data[ADSP_FACTORY_GYRO].x,
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data->sensor_data[ADSP_FACTORY_GYRO].y,
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data->sensor_data[ADSP_FACTORY_GYRO].z);
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}
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static ssize_t gyro_power_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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return snprintf(buf, PAGE_SIZE, "%d\n", 1);
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}
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static ssize_t gyro_temp_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct adsp_data *data = dev_get_drvdata(dev);
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unsigned long timeout;
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struct msg_data message;
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short gyro_temperature = 0;
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message.sensor_type = ADSP_FACTORY_GYRO_TEMP;
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msleep(RAWDATA_TIMER_MS + RAWDATA_TIMER_MARGIN_MS);
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adsp_unicast(&message, sizeof(message), NETLINK_MESSAGE_GYRO_TEMP, 0, 0);
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timeout = jiffies + (10 * HZ);
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while (!(data->selftest_ready_flag & 1 << ADSP_FACTORY_GYRO_TEMP)) {
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msleep(20);
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if (time_after(jiffies, timeout)) {
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pr_err("[FACTORY] %s: Timeout!!!\n", __func__);
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return snprintf(buf, PAGE_SIZE, "%d\n", 0);
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}
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}
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data->selftest_ready_flag &= 0 << ADSP_FACTORY_GYRO_TEMP;
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gyro_temperature =
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(short)data->sensor_selftest_result[ADSP_FACTORY_GYRO_TEMP].gyro_temp;
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pr_info("[FACTORY] %s: temperature = %d\n", __func__,
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gyro_temperature);
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return sprintf(buf, "%d\n", gyro_temperature);
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}
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static ssize_t gyro_selftest_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct adsp_data *data = dev_get_drvdata(dev);
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u8 bist = 0, zro_result = 0;
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int data_check[3] = { 0, };
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unsigned long timeout;
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struct msg_data message;
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message.sensor_type = ADSP_FACTORY_GYRO;
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msleep(RAWDATA_TIMER_MS + RAWDATA_TIMER_MARGIN_MS);
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adsp_unicast(&message, sizeof(message), NETLINK_MESSAGE_SELFTEST_SHOW_DATA, 0, 0);
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timeout = jiffies + (10 * HZ);
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while (!(data->selftest_ready_flag & 1 << ADSP_FACTORY_GYRO)) {
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msleep(20);
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if (time_after(jiffies, timeout)) {
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pr_err("[FACTORY] %s: Timeout!!!\n", __func__);
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return snprintf(buf, PAGE_SIZE, "%d, %d, %d, %d, %d\n",
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-1, -1, 0, 0, 0);
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}
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}
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data->selftest_ready_flag &= 0 << ADSP_FACTORY_GYRO;
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/* bist: 1 -> pass, 0 -> fail */
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bist = data->sensor_selftest_result[ADSP_FACTORY_GYRO].result1;
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/* zro_result: 0: pass */
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zro_result = data->sensor_selftest_result[ADSP_FACTORY_GYRO].result2;
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data_check[0] = data->sensor_selftest_result[ADSP_FACTORY_GYRO].bias_x;
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data_check[1] = data->sensor_selftest_result[ADSP_FACTORY_GYRO].bias_y;
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data_check[2] = data->sensor_selftest_result[ADSP_FACTORY_GYRO].bias_z;
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pr_info("[FACTORY] %s: bist = %u, zro_result = %u\n",
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__func__, bist, zro_result);
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pr_info("[FACTORY] %s: X = %d, Y = %d, Z = %d\n", __func__,
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data_check[0], data_check[1], data_check[2]);
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if ((data_check[0] <= SELFTEST_MAX_LIMITATION)
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&& (data_check[1] <= SELFTEST_MAX_LIMITATION)
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&& (data_check[2] <= SELFTEST_MAX_LIMITATION)
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&& (data_check[0] >= SELFTEST_MIN_LIMITATION)
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&& (data_check[1] >= SELFTEST_MIN_LIMITATION)
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&& (data_check[2] >= SELFTEST_MIN_LIMITATION)) {
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pr_info("[FACTORY] %s : Gyro zero rate OK!- Pass\n", __func__);
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/* save_gyro_caldata(data, iCalData); */
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} else {
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pr_info("[FACTORY] %s : Gyro zero rate NG!- Fail!\n", __func__);
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zro_result |= 1;
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}
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pr_info("[SSP] %s - %u,%u,%d.%03d,%d.%03d,%d.%03d\n", __func__,
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bist, zro_result,
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(data_check[0] / 1000), (int)abs(data_check[0] % 1000),
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(data_check[1] / 1000), (int)abs(data_check[1] % 1000),
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(data_check[2] / 1000), (int)abs(data_check[2] % 1000));
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return sprintf(buf, "%d,%d,%d.%03d,%d.%03d,%d.%03d\n",
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(int)bist, (int)zro_result,
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(data_check[0] / 1000), (int)abs(data_check[0] % 1000),
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(data_check[1] / 1000), (int)abs(data_check[1] % 1000),
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(data_check[2] / 1000), (int)abs(data_check[2] % 1000));
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}
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static DEVICE_ATTR(name, S_IRUGO, gyro_name_show, NULL);
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static DEVICE_ATTR(vendor, S_IRUGO, gyro_vendor_show, NULL);
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static DEVICE_ATTR(raw_data, S_IRUGO, gyro_raw_data_read, NULL);
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static DEVICE_ATTR(selftest, S_IRUSR | S_IRGRP,
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gyro_selftest_show, NULL);
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static DEVICE_ATTR(temperature, S_IRUSR | S_IRGRP,
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gyro_temp_show, NULL);
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static DEVICE_ATTR(power_on, S_IRUSR | S_IRGRP,
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gyro_power_show, NULL);
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static struct device_attribute *gyro_attrs[] = {
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&dev_attr_name,
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&dev_attr_vendor,
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&dev_attr_raw_data,
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&dev_attr_selftest,
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&dev_attr_temperature,
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&dev_attr_power_on,
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NULL,
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};
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static int __init bmi168_gyro_factory_init(void)
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{
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adsp_factory_register(ADSP_FACTORY_GYRO, gyro_attrs);
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pr_info("[FACTORY] %s\n", __func__);
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return 0;
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}
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static void __exit bmi168_gyro_factory_exit(void)
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{
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adsp_factory_unregister(ADSP_FACTORY_GYRO);
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pr_info("[FACTORY] %s\n", __func__);
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}
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module_init(bmi168_gyro_factory_init);
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module_exit(bmi168_gyro_factory_exit);
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