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focaltech_0flash: Enable USB detection function

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TP:
Enable USB detection function.
Increase the anti-interference ability after plugging in the USB cable.

Change-Id: I64ecb13f58e87f9f687d4ad3a6725884c7304bc7
Signed-off-by: haojl2 <haojl2@motorola.com>
Reviewed-on: https://gerrit.mot.com/1385264
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 2019-07-12 18:26:50 +08:00 • committed by Jialei Hao
commit c91a6f8e9d
3 changed files with 129 additions and 1 deletions
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5
drivers/input/touchscreen/focaltech_0flash_mmi/focaltech_config.h
View file

@ -212,6 +212,11 @@
*/
#define FTS_GET_MODULE_NUM 0
/*
* Usb detect support
*/
#define FTS_USB_DETECT_EN 1
/*
* module_id: mean vendor_id generally, also maybe gpio or lcm_id...
* If means vendor_id, the FTS_MODULE_ID = PANEL_ID << 8 + VENDOR_ID

113
drivers/input/touchscreen/focaltech_0flash_mmi/focaltech_core.c
View file

@ -55,6 +55,9 @@
#define FTS_DRIVER_NAME "fts_ts"
#define INTERVAL_READ_REG 200 /* unit:ms */
#define TIMEOUT_READ_REG 1000 /* unit:ms */
#if FTS_USB_DETECT_EN
bool FTS_USB_detect_flag;
#endif
#if FTS_POWER_SOURCE_CUST_EN
#define FTS_VTG_MIN_UV 2800000
#define FTS_VTG_MAX_UV 3300000
@ -666,11 +669,64 @@ static int fts_read_parse_touchdata(struct fts_ts_data *data)
return 0;
}
#if FTS_USB_DETECT_EN
static void fts_mcu_usb_detect_set(uint8_t usb_connected)
{
uint8_t write_data = 0;
uint8_t read_data = 0;
uint8_t retry_cnt = 0;
int ret = 0;
do{
if (usb_connected == 0x01) {
write_data= 0x01;
ret = fts_write_reg(FTS_REG_CHARGER_MODE_EN, write_data);
if (ret < 0)
FTS_ERROR("set register USB IN fail, ret=%d", ret);
FTS_INFO("%s: USB detect status IN!\n", __func__);
} else {
write_data= 0x00;
ret = fts_write_reg(FTS_REG_CHARGER_MODE_EN, write_data);
if (ret < 0)
FTS_ERROR("set register USB OUT fail, ret=%d", ret);
FTS_INFO("%s: USB detect status OUT!\n", __func__);
}
ret = fts_read_reg(FTS_REG_CHARGER_MODE_EN, &read_data);
if (ret < 0)
FTS_ERROR("read 8b register fail, ret=%d", ret);
}while((write_data != read_data) && retry_cnt < FTS_REG_RETRY_TIMES);
}
void fts_cable_detect_func(bool force_renew)
{
struct fts_ts_data *ts_data = fts_data;
uint8_t connect_status = 0;
connect_status = FTS_USB_detect_flag;
if ((connect_status != ts_data->usb_connected) || force_renew) {
if (connect_status) {
ts_data->usb_connected = 0x01;
} else {
ts_data->usb_connected = 0x00;
}
fts_mcu_usb_detect_set(ts_data->usb_connected);
FTS_INFO("%s: Cable status change: 0x%2.2X\n", __func__, ts_data->usb_connected);
}
}
#endif
static void fts_irq_read_report(void)
{
int ret = 0;
struct fts_ts_data *ts_data = fts_data;
#if FTS_USB_DETECT_EN
fts_cable_detect_func(false);
#endif
#if FTS_ESDCHECK_EN
fts_esdcheck_set_intr(1);
#endif
@ -693,6 +749,7 @@ static void fts_irq_read_report(void)
#if FTS_ESDCHECK_EN
fts_esdcheck_set_intr(0);
#endif
}
static irqreturn_t fts_irq_handler(int irq, void *data)
@ -1348,6 +1405,35 @@ static void fts_ts_late_resume(struct early_suspend *handler)
}
#endif
#if FTS_USB_DETECT_EN
static int fts_charger_notifier_callback(struct notifier_block *nb,
unsigned long val, void *v) {
int ret = 0;
struct power_supply *psy = NULL;
struct fts_ts_data *ts = container_of(nb, struct fts_ts_data, charger_notif);
union power_supply_propval prop;
psy= power_supply_get_by_name("usb");
if (!psy) {
FTS_ERROR("Couldn't get usbpsy\n");
return -EINVAL;
}
if (!strcmp(psy->desc->name, "usb")) {
if (psy && ts && val == POWER_SUPPLY_PROP_STATUS) {
ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_PRESENT,&prop);
if (ret < 0) {
FTS_ERROR("Couldn't get POWER_SUPPLY_PROP_ONLINE rc=%d\n", ret);
return ret;
} else {
FTS_USB_detect_flag = prop.intval;
//FTS_ERROR("usb prop.intval =%d\n", prop.intval);
}
}
}
return 0;
}
#endif
static int fts_ts_probe_entry(struct fts_ts_data *ts_data)
{
int ret = 0;
@ -1509,9 +1595,25 @@ static int fts_ts_probe_entry(struct fts_ts_data *ts_data)
register_early_suspend(&ts_data->early_suspend);
#endif
#if FTS_USB_DETECT_EN
ts_data->usb_connected = 0x00;
ts_data->charger_notif.notifier_call = fts_charger_notifier_callback;
ret = power_supply_reg_notifier(&ts_data->charger_notif);
if (ret) {
FTS_ERROR("Unable to register charger_notifier: %d\n",ret);
goto err_register_charger_notify_failed;
}
#endif
FTS_FUNC_EXIT();
return 0;
#if FTS_USB_DETECT_EN
err_register_charger_notify_failed:
if (ts_data->charger_notif.notifier_call)
power_supply_unreg_notifier(&ts_data->charger_notif);
#endif
err_irq_req:
#if FTS_POWER_SOURCE_CUST_EN
err_power_init:
@ -1542,6 +1644,11 @@ static int fts_ts_remove_entry(struct fts_ts_data *ts_data)
{
FTS_FUNC_ENTER();
#if FTS_USB_DETECT_EN
if (ts_data->charger_notif.notifier_call)
power_supply_unreg_notifier(&ts_data->charger_notif);
#endif
#if FTS_POINT_REPORT_CHECK_EN
fts_point_report_check_exit(ts_data);
#endif
@ -1693,8 +1800,12 @@ static int fts_ts_resume(struct device *dev)
}
#endif
ts_data->suspended = false;
#if FTS_USB_DETECT_EN
fts_cable_detect_func(true);
#endif
FTS_FUNC_EXIT();
return 0;
}

12
drivers/input/touchscreen/focaltech_0flash_mmi/focaltech_core.h
View file

@ -62,6 +62,9 @@
#include <linux/kthread.h>
#include <linux/dma-mapping.h>
#include "focaltech_common.h"
#ifdef FTS_USB_DETECT_EN
#include <linux/power_supply.h>
#endif
/*****************************************************************************
* Private constant and macro definitions using #define
@ -102,6 +105,8 @@
#define FTX_MAX_COMPATIBLE_TYPE 4
#define FTX_MAX_COMMMAND_LENGTH 16
#define FTS_REG_RETRY_TIMES 5
/*****************************************************************************
* Private enumerations, structures and unions using typedef
@ -185,11 +190,18 @@ struct fts_ts_data {
struct pinctrl_state *pins_suspend;
struct pinctrl_state *pins_release;
#endif
#if defined(CONFIG_FB) || defined(CONFIG_DRM)
struct notifier_block fb_notif;
#elif defined(CONFIG_HAS_EARLYSUSPEND)
struct early_suspend early_suspend;
#endif
#if FTS_USB_DETECT_EN
uint8_t usb_connected;
struct notifier_block charger_notif;
#endif
};
/*****************************************************************************