kernel_samsung_a34x-permissive/drivers/sensorhub/sensor/proximity.c

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/*
* Copyright (C) 2020, Samsung Electronics Co. Ltd. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include "../comm/shub_comm.h"
#include "../sensorhub/shub_device.h"
#include "../sensormanager/shub_sensor.h"
#include "../sensormanager/shub_sensor_manager.h"
#include "../utility/shub_dev_core.h"
#include "../utility/shub_utility.h"
#include "../utility/shub_file_manager.h"
#include "proximity.h"
#include <linux/of_gpio.h>
#include <linux/slab.h>
get_init_chipset_funcs_ptr get_prox_funcs_ary[] = {
get_proximity_stk3x6x_function_pointer,
get_proximity_gp2ap110s_function_pointer,
get_proximity_stk3328_function_pointer,
get_proximity_stk3391x_function_pointer,
get_proximity_stk33512_function_pointer,
};
static get_init_chipset_funcs_ptr *get_proximity_init_chipset_funcs(int *len)
{
*len = ARRAY_SIZE(get_prox_funcs_ary);
return get_prox_funcs_ary;
}
static int init_proximity_variable(void)
{
struct proximity_data *data = get_sensor(SENSOR_TYPE_PROXIMITY)->data;
if (data->cal_data_len) {
data->cal_data = kzalloc(data->cal_data_len, GFP_KERNEL);
if (!data->cal_data)
return -ENOMEM;
}
return 0;
}
#define TEMPERATURE_THRESH 50
#define COMPENSATION_VALUE 40
#define BATTERY_TEMP_PATH "/sys/class/power_supply/battery/temp"
int get_proximity_thresh_temperature_compensation(void)
{
int ret = 0;
char temp_str[10] = {0, };
int temp_value = 0;
ret = shub_file_read(BATTERY_TEMP_PATH, (char *)&temp_str, sizeof(temp_str), 0);
if (ret <= 0) {
shub_errf("can't proximity read temperature file %d", ret);
return 0;
}
ret = kstrtos32(temp_str, 10, &temp_value);
if (ret < 0) {
shub_errf("kstrtou32 failed(%d)", ret);
ret = 0;
} else if (temp_value < TEMPERATURE_THRESH)
ret = COMPENSATION_VALUE;
shub_infof("%s temp value %d compensation %d", temp_str, temp_value, ret);
return ret;
}
void set_proximity_threshold(void)
{
int ret = 0;
u8 prox_th_mode = -1;
u16 prox_th[PROX_THRESH_SIZE] = {0, };
struct proximity_data *data = get_sensor(SENSOR_TYPE_PROXIMITY)->data;
struct proximity_chipset_funcs *chipset_funcs = get_sensor(SENSOR_TYPE_PROXIMITY)->chipset_funcs;
if (!get_sensor_probe_state(SENSOR_TYPE_PROXIMITY)) {
shub_infof("proximity sensor is not connected");
return;
}
memcpy(prox_th, data->prox_threshold, sizeof(prox_th));
ret = shub_send_command(CMD_SETVALUE, SENSOR_TYPE_PROXIMITY, PROXIMITY_THRESHOLD, (char *)prox_th,
sizeof(prox_th));
if (ret < 0) {
shub_err("SENSOR_PROXTHRESHOLD CMD fail %d", ret);
return;
}
if (data->need_compensation) {
int compensation = get_proximity_thresh_temperature_compensation();
prox_th[0] += compensation;
prox_th[1] += compensation;
}
if (chipset_funcs && chipset_funcs->get_proximity_threshold_mode)
prox_th_mode = chipset_funcs->get_proximity_threshold_mode();
shub_info("Proximity Threshold[%d] - %u, %u", prox_th_mode, data->prox_threshold[PROX_THRESH_HIGH],
data->prox_threshold[PROX_THRESH_LOW]);
}
static int sync_proximity_status(void)
{
int ret = 0;
struct proximity_data *data = get_sensor(SENSOR_TYPE_PROXIMITY)->data;
struct proximity_chipset_funcs *chipset_funcs = get_sensor(SENSOR_TYPE_PROXIMITY)->chipset_funcs;
shub_infof();
set_proximity_threshold();
if (chipset_funcs && chipset_funcs->sync_proximity_state)
chipset_funcs->sync_proximity_state(data);
return ret;
}
static void print_debug_proximity(void)
{
struct shub_sensor *sensor = get_sensor(SENSOR_TYPE_PROXIMITY);
struct sensor_event *event = &(sensor->event_buffer);
struct prox_event *sensor_value = (struct prox_event *)(event->value);
shub_infof("%s(%u) : %d, %d (%lld) (%ums, %dms)", sensor->name, SENSOR_TYPE_PROXIMITY, sensor_value->prox,
sensor_value->prox_raw, event->timestamp, sensor->sampling_period, sensor->max_report_latency);
}
static int enable_proximity(void)
{
struct proximity_data *data = get_sensor(SENSOR_TYPE_PROXIMITY)->data;
struct proximity_chipset_funcs *chipset_funcs = get_sensor(SENSOR_TYPE_PROXIMITY)->chipset_funcs;
set_proximity_threshold();
if (chipset_funcs && chipset_funcs->pre_enable_proximity)
chipset_funcs->pre_enable_proximity(data);
return 0;
}
void print_proximity_debug(void)
{
struct shub_sensor *sensor = get_sensor(SENSOR_TYPE_PROXIMITY);
struct sensor_event *event = &(sensor->event_buffer);
struct prox_event *sensor_value = (struct prox_event *)(event->value);
shub_info("%s(%u) : %d, %d (%lld) (%ums, %dms)", sensor->name, SENSOR_TYPE_PROXIMITY, sensor_value->prox,
sensor_value->prox_raw, event->timestamp, sensor->sampling_period, sensor->max_report_latency);
}
void report_event_proximity(void)
{
struct prox_event *sensor_value = (struct prox_event *)(get_sensor_event(SENSOR_TYPE_PROXIMITY)->value);
shub_infof("Proximity Sensor Detect : %u, raw : %u", sensor_value->prox, sensor_value->prox_raw);
}
int parsing_proximity_threshold(char *dataframe, int *index, int frame_len)
{
u16 thresh[2] = {0, };
struct proximity_data *data = get_sensor(SENSOR_TYPE_PROXIMITY)->data;
struct proximity_chipset_funcs *chipset_funcs = get_sensor(SENSOR_TYPE_PROXIMITY)->chipset_funcs;
if (*index + sizeof(thresh) > frame_len) {
shub_errf("parsing error");
return -EINVAL;
}
memcpy(thresh, dataframe + (*index), sizeof(thresh));
data->prox_threshold[0] = thresh[0];
data->prox_threshold[1] = thresh[1];
if (chipset_funcs && chipset_funcs->set_proximity_threshold_mode)
chipset_funcs->set_proximity_threshold_mode(3);
(*index) += sizeof(thresh);
shub_infof("prox threshold received %u %u", data->prox_threshold[0], data->prox_threshold[1]);
return 0;
}
int set_proximity_calibration(void)
{
int ret = 0;
struct proximity_data *data = get_sensor(SENSOR_TYPE_PROXIMITY)->data;
if (data->cal_data_len == 0)
return ret;
ret = shub_send_command(CMD_SETVALUE, SENSOR_TYPE_PROXIMITY, CAL_DATA, (char *)data->cal_data,
data->cal_data_len);
if (ret < 0)
shub_errf("failed %d", ret);
return ret;
}
int save_proximity_calibration(void)
{
int ret = 0;
struct proximity_data *data = get_sensor(SENSOR_TYPE_PROXIMITY)->data;
if (data->cal_data_len == 0)
return ret;
ret = shub_file_write_no_wait(PROX_CALIBRATION_FILE_PATH, (char *)data->cal_data, data->cal_data_len, 0);
if (ret != data->cal_data_len) {
shub_errf("failed");
return -EIO;
}
return ret;
}
int open_default_proximity_calibration(void)
{
int ret = 0;
struct proximity_data *data = get_sensor(SENSOR_TYPE_PROXIMITY)->data;
if (data->cal_data_len == 0)
return ret;
ret = shub_file_read(PROX_CALIBRATION_FILE_PATH, (char *)data->cal_data, data->cal_data_len, 0);
if (ret != data->cal_data_len) {
shub_errf("failed");
return -EIO;
}
return ret;
}
static int open_proximity_calibration(void)
{
int ret = 0;
struct proximity_chipset_funcs *chipset_funcs = get_sensor(SENSOR_TYPE_PROXIMITY)->chipset_funcs;
if (chipset_funcs && chipset_funcs->open_calibration_file)
ret = chipset_funcs->open_calibration_file();
else
ret = open_default_proximity_calibration();
return ret;
}
int set_proximity_setting_mode(void)
{
int ret = 0;
struct proximity_data *data = get_sensor(SENSOR_TYPE_PROXIMITY)->data;
if (data->setting_mode == 0)
return ret;
shub_infof("%d", data->setting_mode);
ret = shub_send_command(CMD_SETVALUE, SENSOR_TYPE_PROXIMITY, PROXIMITY_SETTING_MODE,
(char *)&data->setting_mode, sizeof(data->setting_mode));
if (ret < 0)
shub_errf("failed %d", ret);
return ret;
}
int save_proximity_setting_mode(void)
{
int ret = 0;
struct proximity_data *data = get_sensor(SENSOR_TYPE_PROXIMITY)->data;
if (data->setting_mode == 0)
return ret;
shub_infof("%d", data->setting_mode);
ret = shub_file_write_no_wait(PROX_SETTING_MODE_FILE_PATH, (char *)&data->setting_mode,
sizeof(data->setting_mode), 0);
if (ret != sizeof(data->setting_mode)) {
shub_errf("failed");
return -EIO;
}
return ret;
}
int open_default_proximity_setting_mode(void)
{
int ret = 0;
struct proximity_data *data = get_sensor(SENSOR_TYPE_PROXIMITY)->data;
u8 mode;
ret = shub_file_read(PROX_SETTING_MODE_FILE_PATH, (char *)&mode, sizeof(mode), 0);
if (ret != sizeof(mode)) {
shub_errf("failed");
ret = -EIO;
} else {
data->setting_mode = mode;
}
shub_infof("%d", data->setting_mode);
return ret;
}
int init_proximity(bool en)
{
struct shub_sensor *sensor = get_sensor(SENSOR_TYPE_PROXIMITY);
if (!sensor)
return 0;
if (en) {
strcpy(sensor->name, "proximity_sensor");
sensor->receive_event_size = 3;
sensor->report_event_size = 1;
sensor->event_buffer.value = kzalloc(sizeof(struct prox_event), GFP_KERNEL);
if (!sensor->event_buffer.value)
goto err_no_mem;
sensor->data = kzalloc(sizeof(struct proximity_data), GFP_KERNEL);
if (!sensor->data)
goto err_no_mem;
sensor->funcs = kzalloc(sizeof(struct sensor_funcs), GFP_KERNEL);
if (!sensor->funcs)
goto err_no_mem;
sensor->funcs->enable = enable_proximity;
sensor->funcs->sync_status = sync_proximity_status;
sensor->funcs->print_debug = print_debug_proximity;
sensor->funcs->report_event = report_event_proximity;
sensor->funcs->parsing_data = parsing_proximity_threshold;
sensor->funcs->open_calibration_file = open_proximity_calibration;
sensor->funcs->init_variable = init_proximity_variable;
sensor->funcs->get_init_chipset_funcs = get_proximity_init_chipset_funcs;
} else {
struct proximity_data *data = get_sensor(SENSOR_TYPE_PROXIMITY)->data;
kfree(data->threshold_data);
data->threshold_data = NULL;
kfree(data->cal_data);
data->cal_data = NULL;
kfree(sensor->data);
sensor->data = NULL;
kfree(sensor->funcs);
sensor->funcs = NULL;
kfree(sensor->event_buffer.value);
sensor->event_buffer.value = NULL;
}
return 0;
err_no_mem:
kfree(sensor->event_buffer.value);
sensor->event_buffer.value = NULL;
kfree(sensor->data);
sensor->data = NULL;
kfree(sensor->funcs);
sensor->funcs = NULL;
return -ENOMEM;
}