Add kernel drivers for SPI and UART and make locking APIs more consistent (#489)

- Add kernel support for SPI driver
- Add kernel support for UART driver
- Implemented ESP32 UART kernel driver
- Update existing UART-related code in Tactility to use new kernel driver
- Remove UART from tt::hal::Configuration
- Remove tt_hal_uart functionality but keep functions for now
- Update devicetrees for UART changes
- Kernel mutex and recursive mutex: improved locking API design
- Other kernel improvements
- Added device_exists_of_type() and device_find_by_name()
This commit is contained in:
Ken Van Hoeylandt
2026-02-07 21:28:11 +01:00
committed by GitHub
parent 7e24105d0c
commit 74127a5f6c
119 changed files with 1679 additions and 1792 deletions
@@ -1,6 +1,7 @@
#include "PwmBacklight.h"
#include "devices/Display.h"
#include "devices/SdCard.h"
#include <driver/gpio.h>
#include <Tactility/hal/Configuration.h>
#include <Tactility/lvgl/LvglSync.h>
@@ -70,55 +71,5 @@ extern const Configuration hardwareConfiguration = {
.isMutable = false,
.lock = nullptr // No custom lock needed
}
},
.uart {
// "UART0-IN"
uart::Configuration {
.name = "UART0",
.port = UART_NUM_1,
.rxPin = GPIO_NUM_44,
.txPin = GPIO_NUM_43,
.rtsPin = GPIO_NUM_NC,
.ctsPin = GPIO_NUM_NC,
.rxBufferSize = 1024,
.txBufferSize = 1024,
.config = {
.baud_rate = 115200,
.data_bits = UART_DATA_8_BITS,
.parity = UART_PARITY_DISABLE,
.stop_bits = UART_STOP_BITS_1,
.flow_ctrl = UART_HW_FLOWCTRL_DISABLE,
.rx_flow_ctrl_thresh = 0,
.source_clk = UART_SCLK_DEFAULT,
.flags = {
.allow_pd = 0,
.backup_before_sleep = 0,
}
}
},
// "UART1-OUT"
uart::Configuration {
.name = "UART1",
.port = UART_NUM_2,
.rxPin = GPIO_NUM_18,
.txPin = GPIO_NUM_17,
.rtsPin = GPIO_NUM_NC,
.ctsPin = GPIO_NUM_NC,
.rxBufferSize = 1024,
.txBufferSize = 1024,
.config = {
.baud_rate = 115200,
.data_bits = UART_DATA_8_BITS,
.parity = UART_PARITY_DISABLE,
.stop_bits = UART_STOP_BITS_1,
.flow_ctrl = UART_HW_FLOWCTRL_DISABLE,
.rx_flow_ctrl_thresh = 0,
.source_clk = UART_SCLK_DEFAULT,
.flags = {
.allow_pd = 0,
.backup_before_sleep = 0,
}
}
}
}
};
@@ -3,6 +3,7 @@
#include <tactility/bindings/root.h>
#include <tactility/bindings/esp32_gpio.h>
#include <tactility/bindings/esp32_i2c.h>
#include <tactility/bindings/esp32_uart.h>
/ {
compatible = "root";
@@ -22,4 +23,22 @@
pin-sda-pullup;
pin-scl-pullup;
};
uart0 {
compatible = "espressif,esp32-uart";
port = <UART_NUM_0>;
pin-tx = <43>;
pin-rx = <44>;
pin-cts = <GPIO_PIN_NONE>;
pin-rts = <GPIO_PIN_NONE>;
};
uart1 {
compatible = "espressif,esp32-uart";
port = <UART_NUM_1>;
pin-tx = <17>;
pin-rx = <18>;
pin-cts = <GPIO_PIN_NONE>;
pin-rts = <GPIO_PIN_NONE>;
};
};