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ets_fps_mmi: Register panel notifier for display on/off

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motorola/kernel/modules/drivers/input/misc/ets_fps_mmi/ets_fps.*:
Add panel notifier and ioctl command GET_DISP_PANEL_STATUS

To get the display panel status, register panel notifier to monitor the
events of PANEL_EVENT_DISPLAY_ON and PANEL_EVENT_DISPLAY_OFF.
And, add an ioctl command GET_DISP_PANEL_STATUS to support HAL service
querying for the panel status.

Change-Id: Ife5b6bc48517234b12c780af44dffaf4a1ad96e5
Signed-off-by: chengql2 <chengql2@lenovo.com>
Reviewed-on: https://gerrit.mot.com/1794293
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Guobin Zhang <zhanggb@motorola.com>
Reviewed-by: Shanshan Dai <daiss1@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
chengql2 2020-11-05 11:04:35 +08:00 • committed by Qiuliang Cheng
commit efda4a150a
2 changed files with 35 additions and 0 deletions
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33
drivers/input/misc/ets_fps_mmi/ets_fps.c
View file

@ -20,6 +20,7 @@
*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/interrupt.h>
#ifdef CONFIG_OF
@ -493,6 +494,9 @@ static struct attribute *attributes[] = {
static const struct attribute_group attribute_group = {
.attrs = attributes,
};
static int disp_panel_on = -1; /* -1 for invalid, 0 for display-off, 1 for display-on */
static long etspi_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
@ -544,6 +548,10 @@ static long etspi_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
}
goto done;
#endif
case GET_DISP_PANEL_STATUS:
if (copy_to_user((int __user *) arg, &disp_panel_on, sizeof(disp_panel_on)))
pr_err("%s fail to copy", __func__);
goto done;
default:
retval = -ENOTTY;
break;
@ -1105,6 +1113,23 @@ etspi_probe_parse_dt_failed:
return status;
}
#ifdef CONFIG_PANEL_NOTIFICATIONS
#include <linux/panel_notifier.h>
static struct notifier_block nb;
static int panel_notifier_cb(struct notifier_block *nb, unsigned long action, void *data)
{
if (action == PANEL_EVENT_DISPLAY_ON) {
disp_panel_on = 1;
pr_info("%s display panel is on", __func__);
} else if (action == PANEL_EVENT_DISPLAY_OFF) {
disp_panel_on = 0;
pr_info("%s display panel is off", __func__);
}
return 0;
}
#endif
static int __init ets_init(void)
{
int status = 0;
@ -1138,11 +1163,19 @@ static int __init ets_init(void)
status = platform_driver_register(&etspi_driver);
DEBUG_PRINT("%s done\n", __func__);
#ifdef CONFIG_PANEL_NOTIFICATIONS
nb.notifier_call = panel_notifier_cb;
if (panel_register_notifier(&nb))
pr_warn("%s fail to register display panel notifier", __func__);
#endif
return status;
}
static void __exit ets_exit(void)
{
#ifdef CONFIG_PANEL_NOTIFICATIONS
panel_unregister_notifier(&nb);
#endif
platform_driver_unregister(&etspi_driver);
}

2
drivers/input/misc/ets_fps_mmi/ets_fps.h
View file

@ -83,6 +83,8 @@
#define AUTH_STATUS_CAPTURED 3
#endif
#define GET_DISP_PANEL_STATUS 0xD2
#define DRDY_IRQ_ENABLE 1
#define DRDY_IRQ_DISABLE 0