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Commitc6ce0a2

Browse files
committed
Beginning touch support
Add a callback function for the touch devicewithin the fixups for the GIGA. This callbacksimply remembers the last touch that happened andsets a semaphore.There is also a function added to retrieve this data.Needed to add the callback function into the exports file.
1 parent42e58a8 commitc6ce0a2

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2 files changed

+52
-1
lines changed

2 files changed

+52
-1
lines changed

‎loader/fixups.c

Lines changed: 49 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -45,10 +45,58 @@ SYS_INIT(disable_mpu_rasr_xn, PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT)
4545
#include<zephyr/drivers/clock_control.h>
4646
#include<zephyr/logging/log.h>
4747

48+
#include<zephyr/input/input.h>
49+
50+
// experiment to try to capture touch screen events
51+
typedefstruct {
52+
int32_tx;
53+
int32_ty;
54+
int32_tpressed;
55+
}touch_point_t;
56+
57+
touch_point_tlast_touch_point;
58+
59+
staticstructk_semtouch_event_sync;
60+
61+
boolgetVideoTouchEvent(touch_point_t*tp,k_timeout_ttimeout) {
62+
if (k_sem_take(&touch_event_sync,timeout)!=0)return false;
63+
// BUGBUG: should probably put stuff in to return only
64+
// data from whole event, but first see if anything works
65+
memcpy(tp,&last_touch_point,sizeof(touch_point_t));
66+
return true;
67+
}
68+
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voidtouch_event_callback(structinput_event*evt,void*user_data)
71+
{
72+
//printk("touch_event_callback(%p %p): %p %u %u %u %d\n", evt, user_data,
73+
// evt->dev, evt->sync, evt->type, evt->code, evt->value);
74+
if (evt->code==INPUT_ABS_X) {
75+
last_touch_point.x=evt->value;
76+
}
77+
if (evt->code==INPUT_ABS_Y) {
78+
last_touch_point.y=evt->value;
79+
}
80+
if (evt->code==INPUT_BTN_TOUCH) {
81+
last_touch_point.pressed=evt->value;
82+
}
83+
if (evt->sync) {
84+
k_sem_give(&touch_event_sync);
85+
}
86+
}
87+
staticconststructdevice*consttouch_dev=DEVICE_DT_GET(DT_CHOSEN(zephyr_touch));
88+
INPUT_CALLBACK_DEFINE(touch_dev,touch_event_callback,NULL);
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90+
4891
intcamera_ext_clock_enable(void)
4992
{
5093
intret;
5194
uint32_trate;
95+
96+
// Hack in init semaphore for touch events
97+
k_sem_init(&touch_event_sync,0,1);
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99+
52100
conststructdevice*cam_ext_clk_dev=DEVICE_DT_GET(DT_NODELABEL(pwmclock));
53101

54102
if (!device_is_ready(cam_ext_clk_dev)) {
@@ -99,7 +147,7 @@ int smh_init(void) {
99147
return0;
100148
}
101149

102-
SYS_INIT(smh_init,POST_KERNEL,CONFIG_CLOCK_CONTROL_PWM_INIT_PRIORITY);
150+
SYS_INIT(smh_init,POST_KERNEL,CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);
103151
#endif
104152

105153
#if defined(CONFIG_BOARD_ARDUINO_PORTENTA_C33)&& defined(CONFIG_LLEXT)

‎loader/llext_exports.c

Lines changed: 3 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -130,6 +130,9 @@ FORCE_EXPORT_SYM(video_buffer_aligned_alloc);
130130
FORCE_EXPORT_SYM(video_buffer_alloc);
131131
FORCE_EXPORT_SYM(video_buffer_release);
132132
#endif
133+
#if defined(CONFIG_BOARD_ARDUINO_GIGA_R1)&& defined(CONFIG_VIDEO)
134+
FORCE_EXPORT_SYM(getVideoTouchEvent)
135+
#endif
133136

134137
#if defined(CONFIG_SHARED_MULTI_HEAP)
135138
FORCE_EXPORT_SYM(shared_multi_heap_aligned_alloc);

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