lupyuen/pinephone-nuttx
1
0
Fork 0
mirror of https://github.com/lupyuen/pinephone-nuttx.git synced 2025-01-13 05:08:32 +08:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Update doc

Browse source
This commit is contained in:
Lee Lup Yuen 2023-01-04 13:53:42 +08:00
parent d310305e6d
commit 0d9c339aec
1 changed files with 8 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
README.md
View file

@ -5175,7 +5175,13 @@ touch_panel_read: touch x=658, y=1369
Yep we can read the Touch Coordinates correctly, with polling! (But not so efficient) Yep we can read the Touch Coordinates correctly, with polling! (But not so efficient)
Eventually we'll use an Interrupt Handler to monitor PH4: [pinephone_bringup.c](https://github.com/lupyuen2/wip-pinephone-nuttx/blob/9ab90bc67a25b8c33e24f62662343950831e7e56/boards/arm64/a64/pinephone/src/pinephone_bringup.c#L102-L166) Let's handle Interrupts from the Touch Panel...
# Handle Interrupts from Touch Panel
In the previous section we've read the Touch Panel by Polling. Which is easier but inefficient.
Eventually we'll use an Interrupt Handler to monitor Touch Panel Interrupts. This is how we monitor PH4 for interrupts: [pinephone_bringup.c](https://github.com/lupyuen2/wip-pinephone-nuttx/blob/9ab90bc67a25b8c33e24f62662343950831e7e56/boards/arm64/a64/pinephone/src/pinephone_bringup.c#L102-L166)
```c ```c
// Touch Panel Interrupt (CTP-INT) is at PH4 // Touch Panel Interrupt (CTP-INT) is at PH4
@ -5222,9 +5228,6 @@ void touch_panel_initialize(void) {
// Leave Critical Section // Leave Critical Section
leave_critical_section(flags); leave_critical_section(flags);
// TODO: Disable all external PIO interrupts
// putreg32(0, A1X_PIO_INT_CTL);
// Attach the PIO interrupt handler // Attach the PIO interrupt handler
if (irq_attach(PH_EINT, touch_panel_interrupt, NULL) < 0) { if (irq_attach(PH_EINT, touch_panel_interrupt, NULL) < 0) {
_err("irq_attach failed\n"); _err("irq_attach failed\n");
@ -5240,7 +5243,7 @@ When we run this code, it generates a non-stop stream of "." characters.
Which means that the Touch Input Interrupt is generated continuously. Without touching the screen! Which means that the Touch Input Interrupt is generated continuously. Without touching the screen!
Is our code correct? _Is our Interrupt Handler code correct?_
TODO TODO