A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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hall pen kernel bringup

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hallpen_sensor bringup

Change-Id: Iec39f4515a6ae090e811a6d8332155ef1403267e
Signed-off-by: qiurp1 <qiurp1@lenovo.com>
Reviewed-on: https://gerrit.mot.com/2055032
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Jiyue Cui <cuijy2@lenovo.com>
Reviewed-by: Tao Sun <suntao2@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
qiurp1 2021-08-31 10:24:23 +08:00 • committed by qiurp1
commit 18114899c1
4 changed files with 70 additions and 1 deletions
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1
drivers/misc/hall/Android.mk
View file

@ -5,6 +5,7 @@ include $(CLEAR_VARS)
LOCAL_MODULE := hall_pen.ko
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE_PATH := $(KERNEL_MODULES_OUT)
LOCAL_ADDITIONAL_DEPENDENCIES := $(KERNEL_MODULES_OUT)/sensors_class.ko
KBUILD_OPTIONS_GKI += GKI_OBJ_MODULE_DIR=gki
include $(DLKM_DIR)/AndroidKernelModule.mk

1
drivers/misc/hall/Makefile
View file

@ -13,3 +13,4 @@ clean:
rm -f *.o *.ko *.mod.c *.mod.o *~ .*.cmd Module.symvers
rm -rf .tmp_versions
KBUILD_EXTRA_SYMBOLS := $(M)/../../sensors/$(GKI_OBJ_MODULE_DIR)/Module.symvers

67
drivers/misc/hall/hall_pen.c
View file

@ -19,10 +19,11 @@
#include <asm/uaccess.h>
#include <linux/of_gpio.h>
#include <linux/irq.h>
#include <linux/sensors.h>
#include <linux/regulator/consumer.h>
#define DRIVER_NAME "hall_pen_detect"
#define LOG_DBG(fmt, args...) pr_info(DRIVER_NAME " [DBG]" "<%s:%d>"fmt, __func__, __LINE__, ##args)
#define LOG_DBG(fmt, args...) pr_debug(DRIVER_NAME " [DBG]" "<%s:%d>"fmt, __func__, __LINE__, ##args)
#define LOG_INFO(fmt, args...) pr_info(DRIVER_NAME " [INFO]" "<%s:%d>"fmt, __func__, __LINE__, ##args)
#define LOG_ERR(fmt, args...) pr_err(DRIVER_NAME " [ERR]" "<%s:%d>"fmt, __func__, __LINE__, ##args)
@ -42,9 +43,12 @@ static struct hall_sensor_str {
int enable;
int gpio_num;
int report_val;
int pen_detect;
struct regulator *hall_vdd;
struct hall_gpio *gpio_list;
spinlock_t mHallSensorLock;
struct input_dev *hall_dev;
struct sensors_classdev sensors_pen_cdev;
}* hall_sensor_dev;
#ifdef CONFIG_OF
@ -79,6 +83,11 @@ void check_and_send(void)
report_val |= hall_sensor_dev->gpio_list[i].gpio_low_report_val;
}
hall_sensor_dev->report_val = report_val;
if(hall_sensor_dev->pen_detect){
input_report_abs(hall_sensor_dev->hall_dev, ABS_DISTANCE, report_val);
input_sync(hall_sensor_dev->hall_dev);
}
LOG_DBG("hall hall_pen_detectend ==%d", hall_sensor_dev->pen_detect);
LOG_DBG("hall report %d", report_val);
}
@ -107,6 +116,13 @@ void hall_enable(bool enable)
}
}
static int hallpen_enable(struct sensors_classdev *sensors_cdev,
unsigned int enable)
{
hall_sensor_dev->pen_detect =1;
hall_enable(enable);
return 0;
}
static ssize_t hall_enable_store(struct class *class,
struct class_attribute *attr,
const char *buf, size_t count)
@ -163,6 +179,9 @@ static int hall_sensor_probe(struct platform_device *pdev)
enum of_gpio_flags flags;
struct device_node *np = pdev->dev.of_node;
int i;
int err ;
const char *name_temp;
//struct totalHallInformation *pHallInformationData = NULL;
//Memory allocation
hall_sensor_dev = kzalloc(sizeof (struct hall_sensor_str), GFP_KERNEL);
@ -174,9 +193,12 @@ static int hall_sensor_probe(struct platform_device *pdev)
spin_lock_init(&hall_sensor_dev->mHallSensorLock);
hall_sensor_dev->enable = 0;
hall_sensor_dev->pen_detect = 0;
//tcmd node
ret = of_property_read_string(np, "hall,factory-class-name", &hall_class.name);
ret = class_register(&hall_class);
ret = of_property_read_string(np, "hall,input-dev-name", &name_temp);
LOG_INFO("hall_input num :%s", name_temp);
ret = of_property_read_u32(np,"hall,nirq-gpio-num", &hall_sensor_dev->gpio_num);
if (ret < 0)
@ -184,6 +206,47 @@ static int hall_sensor_probe(struct platform_device *pdev)
LOG_ERR("GPIO for hall sensor does not exist");
}
LOG_INFO("gpio num :%d", hall_sensor_dev->gpio_num);
hall_sensor_dev->hall_dev = input_allocate_device();
if (!hall_sensor_dev->hall_dev){
LOG_ERR(" hall_indev allocation fails\n" );
return -ENOMEM;
}
hall_sensor_dev->hall_dev->name = name_temp;
hall_sensor_dev->hall_dev->dev.parent= NULL;
LOG_INFO("hall_ num :%s", hall_sensor_dev->hall_dev->name);
/* Set all the keycodes */
//input_set_capability(hall_sensor_dev->hall_dev, EV_SW, SW_CAMERA_LENS_COVER);
__set_bit(EV_ABS, hall_sensor_dev->hall_dev->evbit);
input_set_abs_params(hall_sensor_dev->hall_dev, ABS_DISTANCE, -1, 100, 0, 0);
err = input_register_device(hall_sensor_dev->hall_dev);
if (ret) {
LOG_ERR("halinput registration fails\n");
return -ENOMEM;
}
input_report_abs(hall_sensor_dev->hall_dev, ABS_DISTANCE, -1);
input_sync(hall_sensor_dev->hall_dev);
hall_sensor_dev->sensors_pen_cdev.sensors_enable = hallpen_enable;
hall_sensor_dev->sensors_pen_cdev.sensors_poll_delay = NULL;
hall_sensor_dev->sensors_pen_cdev.name = hall_sensor_dev->hall_dev->name;
hall_sensor_dev->sensors_pen_cdev.vendor = "motorola";
hall_sensor_dev->sensors_pen_cdev.version = 1;
hall_sensor_dev->sensors_pen_cdev.type = SENSOR_TYPE_MOTO_HALL;
hall_sensor_dev->sensors_pen_cdev.max_range = "5";
hall_sensor_dev->sensors_pen_cdev.resolution = "5.0";
hall_sensor_dev->sensors_pen_cdev.sensor_power = "3";
hall_sensor_dev->sensors_pen_cdev.min_delay = 0;
hall_sensor_dev->sensors_pen_cdev.fifo_reserved_event_count = 0;
hall_sensor_dev->sensors_pen_cdev.fifo_max_event_count = 0;
hall_sensor_dev->sensors_pen_cdev.delay_msec = 100;
hall_sensor_dev->sensors_pen_cdev.enabled = 0;
err = sensors_classdev_register(&hall_sensor_dev->hall_dev->dev, &hall_sensor_dev->sensors_pen_cdev);
if (err < 0)
LOG_ERR("create cap sensor_class file failed (%d)\n", err);
hall_sensor_dev->gpio_list = kzalloc(sizeof (struct hall_gpio) * hall_sensor_dev->gpio_num, GFP_KERNEL);
if (!hall_sensor_dev->gpio_list) {
LOG_ERR("Memory allocation fails for hall sensor");
@ -283,6 +346,8 @@ static int hall_sensor_remove(struct platform_device *pdev)
if (hall_sensor_dev)
kfree(hall_sensor_dev);
sensors_classdev_unregister(&hall_sensor_dev->sensors_pen_cdev);
input_unregister_device(hall_sensor_dev->hall_dev);
LOG_INFO("paltform rm");
return 0;
}

2
include/linux/sensors.h
View file

@ -51,6 +51,8 @@
#define SENSOR_TYPE_MOTO_CAPSENSE (SENSOR_TYPE_DEVICE_PRIVATE_BASE + 16)
#define SENSOR_TYPE_MOTO_HALL (SENSOR_TYPE_DEVICE_PRIVATE_BASE+44)
#define SENSOR_TYPE_MOTO_DOUBLE_TAP (SENSOR_TYPE_DEVICE_PRIVATE_BASE + 30)
#define SENSOR_TYPE_MOTO_TOUCH_PALM (SENSOR_TYPE_DEVICE_PRIVATE_BASE + 31)
#define SENSOR_TYPE_MOTO_BODYTEMP (SENSOR_TYPE_DEVICE_PRIVATE_BASE + 42)