arch/risc-v/espressif: Add touch sensor support for esp32[-p4]

[eren-terzioglu]

Summary

• Docs/platforms/esp32p4: Add touch sensor docs

Add touch sensor docs for esp32[-p4]

• boards/risc-v/esp32p4: Add touch sensor board support for esp32[-p4]

Add touch sensor board support for esp32p4

• arch/risc-v/espressif: Add touch sensor support for esp32[-p4]

Add touch sensor support for esp32p4

Impact

Impact on user: Yes, touch sensor can be used with esp32p4

Impact on build: No

Impact on hardware: Yes, touch sensor is supported for esp32p4

Impact on documentation: Yes, related docs added

Impact on security: No

Impact on compatibility: No

Testing

esp32p4-function-ev-board:buttons config used with these options

CONFIG_ESPRESSIF_TOUCH=y
CONFIG_ESP_TOUCH_CHANNEL1=y
CONFIG_ESP_TOUCH_IRQ=y

Building

Command to build

make distclean && ./tools/configure.sh esp32p4-function-ev-board:buttons && kconfig-tweak -e CONFIG_ESPRESSIF_TOUCH && kconfig-tweak -e CONFIG_ESP_TOUCH_CHANNEL1 && kconfig-tweak -e CONFIG_ESP_TOUCH_IRQ && make olddefconfig && make -j && make download ESPTOOL_PORT=/dev/ttyUSB0

Running

buttons example run and then touched to the GPIO2 pin

Results

Output should look like this:

nsh> buttons
buttons_main: Starting the button_daemon
btn_supported: NUM_BUTTONS: 02
board_buttons: Reading button 0
board_buttons: b=0 n=0
board_buttons: Reading button 1
board_buttons: b=0 n=0
btn_enable: press: 0f release: 0f handler: 0x40021da0 arg: 0x4ff2b6d0
board_button_irq: Attach 0x400218b0 to touch pad 1
btn_supported: NUM_BUTTONS: 02
btn_enable: press: 0f release: 0f handler: 0x40021da0 arg: 0x4ff2b6d0
board_button_irq: Attach 0x400218b0 to touch pad 1
buttons_main: button_daemon started
button_daemon: Running
button_daemon: Opening /dev/buttons
button_daemon: Supported BUTTONs 0x03
nsh> board_buttons: Reading button 0
board_buttons: b=0 n=0
board_buttons: Reading button 1
board_buttons: b=0 n=0
btn_supported: NUM_BUTTONS: 02
BUTTON1 was pressed

[eren-terzioglu]

Thanks @xiaoxiang781216, updated.

[eren-terzioglu]

Error seems unrelated to this PR.