A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-11 23:24:22 -04:00
Code Issues Projects Releases Packages Wiki Activity

goodix_gtx8_v1430_mmi: Add touchscreen class

Browse source 
moto touchscreen deiver need create some sys entries under
/sys/class/touchscreen to show touch vendor info.

Change-Id: I02bf3ce8a4067d86a734edcb5a536a16ffc339c4
Signed-off-by: haojl2 <haojl2@motorola.com>
Reviewed-on: https://gerrit.mot.com/1434797
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Jianqi Yang <yangj@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
haojl2 2019-10-10 14:48:06 +08:00 • committed by Jialei Hao
commit 9964788faa
2 changed files with 108 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

107
drivers/input/touchscreen/goodix_gtx8_v1430_mmi/goodix_ts_core.c
View file

@ -798,6 +798,104 @@ static const struct attribute_group sysfs_group = {
.attrs = sysfs_attrs,
};
/****/
static ssize_t path_show(struct device *dev, struct device_attribute *pAttr, char *pBuf)
{
ssize_t blen;
const char *path;
struct goodix_ts_device *ts_device =
dev_get_drvdata(dev);
struct i2c_client *client = to_i2c_client(ts_device->dev);
path = kobject_get_path(&client->dev.kobj, GFP_KERNEL);
blen = scnprintf(pBuf, PAGE_SIZE, "%s\n", path ? path : "na");
kfree(path);
return blen;
}
/* Attribute: vendor (RO) */
static ssize_t vendor_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
ts_info("*** %s() vendor = %s ***", __func__, "goodix");
return scnprintf(buf, PAGE_SIZE, "goodix");
}
static struct device_attribute touchscreen_attributes[] = {
__ATTR_RO(path),
__ATTR_RO(vendor),
__ATTR_NULL
};
static int goodix_ts_sysfs_class(struct goodix_ts_device *core_data, bool create)
{
int i, error = 0;
dev_t devno;
s32 ret = 0;
struct device_attribute *attrs = touchscreen_attributes;
static struct class *touchscreen_class;
static struct device *touchscreen_class_dev;
if (create) {
ret = alloc_chrdev_region(&devno, 0, 1, GOODIX_TP_IC_TYPE);
if (ret) {
ts_err("cant`t allocate chrdev");
return ret;
}
ts_debug("allocate chrdev ok");
touchscreen_class = class_create(THIS_MODULE, "touchscreen");
if (IS_ERR(touchscreen_class)) {
error = PTR_ERR(touchscreen_class);
touchscreen_class = NULL;
ts_err("Faild to create touchscreen class!");
return ret;
}
touchscreen_class_dev = device_create(touchscreen_class, NULL,
devno, core_data, GOODIX_TP_IC_TYPE);
if (IS_ERR(touchscreen_class_dev)) {
error = PTR_ERR(touchscreen_class_dev);
touchscreen_class_dev = NULL;
ts_err("Faild to create device(touchscreen_class_dev)!");
return error;
}
ts_info("Succeed to create device(touchscreen_class_dev)!");
for (i = 0; attrs[i].attr.name != NULL; ++i) {
ret = device_create_file(touchscreen_class_dev, &attrs[i]);
if (ret < 0)
goto device_destroy;
}
} else {
if (!touchscreen_class || !touchscreen_class_dev)
return -ENODEV;
for (i = 0; attrs[i].attr.name != NULL; ++i)
device_remove_file(touchscreen_class_dev, &attrs[i]);
device_unregister(touchscreen_class_dev);
class_unregister(touchscreen_class);
}
return 0;
device_destroy:
for (--i; i >= 0; --i)
device_remove_file(touchscreen_class_dev, &attrs[i]);
/*device_destroy(touchscreen_class, MKDEV(INPUT_MAJOR, minor));*/
touchscreen_class_dev = NULL;
class_unregister(touchscreen_class);
ts_err("error creating touchscreen class");
return -ENODEV;
}
static ssize_t goodix_sysfs_config_write(struct file *file,
struct kobject *kobj, struct bin_attribute *attr,
char *buf, loff_t pos, size_t count)
@ -889,11 +987,20 @@ static int goodix_ts_sysfs_init(struct goodix_ts_core *core_data)
return ret;
}
ret = goodix_ts_sysfs_class(core_data->ts_dev, true);
if (ret) {
sysfs_remove_group(&core_data->pdev->dev.kobj, &sysfs_group);
sysfs_remove_bin_file(&core_data->pdev->dev.kobj,
&goodix_config_bin_attr);
ts_err("sys class files creation failed");
}
return ret;
}
static void goodix_ts_sysfs_exit(struct goodix_ts_core *core_data)
{
goodix_ts_sysfs_class(core_data->ts_dev, false);
sysfs_remove_bin_file(&core_data->pdev->dev.kobj,
&goodix_config_bin_attr);
sysfs_remove_group(&core_data->pdev->dev.kobj, &sysfs_group);

1
drivers/input/touchscreen/goodix_gtx8_v1430_mmi/goodix_ts_core.h
View file

@ -62,6 +62,7 @@
#define GOODIX_VID_MAX_LEN 8
#define GOODIX_DEFAULT_CFG_NAME "goodix_config.cfg"
#define GOODIX_TP_IC_TYPE "GTx8"
#define IC_TYPE_NONE 0
#define IC_TYPE_NORMANDY 1