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cmds: Support Xiaomi Smart Pen force enable in xiaomi-touch ioctl #73

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cmds: Support Xiaomi Smart Pen force enable in xiaomi-touch ioctl #73

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13 changes: 7 additions & 6 deletions cmds/xiaomi-touch.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -25,22 +25,23 @@
#define Touch_Nonui_Mode 17
#define Touch_Debug_Level 18
#define Touch_Power_Status 19
#define Touch_Mode_NUM 20
#define Touch_Pen_ENABLE 20
#define Touch_Mode_NUM 21

#define TOUCH_DEV_PATH "/dev/xiaomi-touch"
#define TOUCH_ID 0
#define TOUCH_MAGIC 0x5400
#define TOUCH_IOC_SETMODE TOUCH_MAGIC + SET_CUR_VALUE

int main(int argc, char **argv) {
if(argc != 3) {
fprintf(stderr, "Usage: %s <mode> <0|1>\n", argv[0]);
int main(int argc, char **argv)
{
if (argc != 3) {
fprintf(stderr, "Usage: %s <mode> <value>\n", argv[0]);
return -1;
}
int mode = atoi(argv[1]);
int enabled = atoi(argv[2]);
if (mode < 0 || mode > 20) return -1;
if (enabled != 0 && enabled != 1) return -1;
if (mode < 0 || mode > Touch_Mode_NUM) return -1;
int fd = open(TOUCH_DEV_PATH, O_RDWR);
// Xiaomi has two competing ABIs, no idea how to detect it
int arg[3] = {TOUCH_ID, mode, enabled};
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15 changes: 15 additions & 0 deletions phh-prop-handler.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -62,6 +62,16 @@ xiaomi_toggle_dt2w_ioctl() {
return 1
}

xiaomi_toggle_pen_enable() {
if [ -c "/dev/xiaomi-touch" ]; then
echo "Trying Enable Xiaomi Smart Pen with ioctl on xiaomi-touch"
# 20 - Touch_Pen_ENABLE
xiaomi-touch 20 "$1"
return
fi
return 1
}

restartAudio() {
setprop ctl.restart audioserver
audioHal="$(getprop |sed -nE 's/.*init\.svc\.(.*audio-hal[^]]*).*/\1/p')"
Expand Down Expand Up @@ -100,6 +110,11 @@ if [ "$1" == "persist.sys.phh.xiaomi.dt2w" ]; then
exit
fi

if [ "$1" == "persist.sys.phh.xiaomi.pen" ]; then
xiaomi_toggle_pen_enable "$prop_value"
exit
fi

if [ "$1" == "persist.sys.phh.oppo.dt2w" ]; then
if [[ "$prop_value" != "0" && "$prop_value" != "1" ]]; then
exit 1
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3 changes: 3 additions & 0 deletions vndk.rc
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Expand Up @@ -46,6 +46,9 @@ on property:persist.sys.phh.transsion.dt2w=*
on property:persist.sys.phh.xiaomi.dt2w=*
exec u:r:phhsu_daemon:s0 root -- /system/bin/phh-prop-handler.sh "persist.sys.phh.xiaomi.dt2w"

on property:persist.sys.phh.xiaomi.pen=*
exec u:r:phhsu_daemon:s0 root -- /system/bin/phh-prop-handler.sh "persist.sys.phh.xiaomi.pen"

on property:persist.sys.phh.allow_binder_thread_on_incoming_calls=*
exec u:r:phhsu_daemon:s0 root -- /system/bin/phh-prop-handler.sh "persist.sys.phh.allow_binder_thread_on_incoming_calls"

Expand Down