SPI device migration (#490)

- Implement SPI devices in dts files for all devices
- Removed `tt::hal::spi` HAL and its configurations
- Fix for devicetree generator "boolean" support
- Remove unused custom locks in all `DisplayDevice` implementations
- Fixed some bugs with devices
- Updated XPT2046 driver
- Fix for `WifiEsp` deadlock
- Export a lot of new `math.h` symbols with `tt_init.cpp`
- Created `SpiDeviceLock` in `TactilityCore` as a wrapper for kernel SPI locking
- Improved `TactilityKernel` SPI driver.

Devices/unphone/Source/Configuration.cpp

@@ -1,19 +1,13 @@
 #include "UnPhoneFeatures.h"
 #include "devices/Hx8357Display.h"
 #include "devices/SdCard.h"
-#include <driver/gpio.h>
 
 #include <Tactility/hal/Configuration.h>
-#include <Tactility/lvgl/LvglSync.h>
-#include <Xpt2046Power.h>
-
-#define UNPHONE_SPI_TRANSFER_SIZE_LIMIT (UNPHONE_LCD_HORIZONTAL_RESOLUTION * UNPHONE_LCD_SPI_TRANSFER_HEIGHT * LV_COLOR_DEPTH / 8)
 
 bool initBoot();
 
 static tt::hal::DeviceVector createDevices() {
     return {
-        std::make_shared<Xpt2046Power>(),
         createDisplay(),
         createSdCard()
     };
@@ -21,30 +15,5 @@ static tt::hal::DeviceVector createDevices() {
 
 extern const tt::hal::Configuration hardwareConfiguration = {
     .initBoot = initBoot,
-    .createDevices = createDevices,
-    .spi {
-        tt::hal::spi::Configuration {
-            .device = SPI2_HOST,
-            .dma = SPI_DMA_CH_AUTO,
-            .config = {
-                .mosi_io_num = GPIO_NUM_40,
-                .miso_io_num = GPIO_NUM_41,
-                .sclk_io_num = GPIO_NUM_39,
-                .quadwp_io_num = -1, // Quad SPI LCD driver is not yet supported
-                .quadhd_io_num = -1, // Quad SPI LCD driver is not yet supported
-                .data4_io_num = GPIO_NUM_NC,
-                .data5_io_num = GPIO_NUM_NC,
-                .data6_io_num = GPIO_NUM_NC,
-                .data7_io_num = GPIO_NUM_NC,
-                .data_io_default_level = false,
-                .max_transfer_sz = UNPHONE_SPI_TRANSFER_SIZE_LIMIT,
-                .flags = 0,
-                .isr_cpu_id = ESP_INTR_CPU_AFFINITY_AUTO,
-                .intr_flags = 0
-            },
-            .initMode = tt::hal::spi::InitMode::ByTactility,
-            .isMutable = false,
-            .lock = tt::lvgl::getSyncLock() // esp_lvgl_port owns the lock for the display
-        }
-    }
+    .createDevices = createDevices
 };

Devices/unphone/Source/devices/Hx8357Display.h

@@ -2,12 +2,11 @@
 
 #include <Tactility/hal/display/DisplayDevice.h>
 #include <Tactility/hal/display/DisplayDriver.h>
-#include <Tactility/Mutex.h>
 
 #include <esp_lcd_types.h>
 #include <lvgl.h>
 
-#include <Tactility/hal/spi/Spi.h>
+#include <driver/spi_common.h>
 
 #define UNPHONE_LCD_SPI_HOST SPI2_HOST
 #define UNPHONE_LCD_PIN_CS GPIO_NUM_48
@@ -17,7 +16,6 @@
 #define UNPHONE_LCD_HORIZONTAL_RESOLUTION 320
 #define UNPHONE_LCD_VERTICAL_RESOLUTION 480
 #define UNPHONE_LCD_DRAW_BUFFER_HEIGHT (UNPHONE_LCD_VERTICAL_RESOLUTION / 15)
-#define UNPHONE_LCD_SPI_TRANSFER_HEIGHT (UNPHONE_LCD_VERTICAL_RESOLUTION / 15)
 
 class Hx8357Display : public tt::hal::display::DisplayDevice {
 
@@ -27,13 +25,11 @@ class Hx8357Display : public tt::hal::display::DisplayDevice {
     std::shared_ptr<tt::hal::display::DisplayDriver> nativeDisplay;
 
     class Hx8357Driver : public tt::hal::display::DisplayDriver {
-        std::shared_ptr<tt::Lock> lock = tt::hal::spi::getLock(SPI2_HOST);
     public:
         tt::hal::display::ColorFormat getColorFormat() const override { return tt::hal::display::ColorFormat::RGB888; }
         uint16_t getPixelWidth() const override { return UNPHONE_LCD_HORIZONTAL_RESOLUTION; }
         uint16_t getPixelHeight() const override { return UNPHONE_LCD_VERTICAL_RESOLUTION; }
         bool drawBitmap(int xStart, int yStart, int xEnd, int yEnd, const void* pixelData) override;
-        std::shared_ptr<tt::Lock> getLock() const override { return lock; }
     };
 
 public:

Devices/unphone/Source/devices/SdCard.cpp

@@ -1,5 +1,6 @@
 #include "SdCard.h"
 
+#include <tactility/device.h>
 #include <Tactility/lvgl/LvglSync.h>
 #include <Tactility/hal/sdcard/SpiSdCardDevice.h>
 
@@ -25,7 +26,11 @@ std::shared_ptr<SdCardDevice> createSdCard() {
         }
     );
 
+    auto* spi_controller = device_find_by_name("spi0");
+    check(spi_controller, "spi0 not found");
+
     return std::make_shared<SpiSdCardDevice>(
-        std::move(configuration)
+        std::move(configuration),
+        spi_controller
     );
 }

Devices/unphone/unphone.dts

@@ -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_spi.h>
 
 / {
 	compatible = "root";
@@ -19,7 +20,16 @@
 		clock-frequency = <400000>;
 		pin-sda = <3>;
 		pin-scl = <4>;
-		pin-sda-pullup;
-		pin-scl-pullup;
+	};
+
+	sdcard_spi: spi0 {
+		compatible = "espressif,esp32-spi";
+		host = <SPI2_HOST>;
+		pin-mosi = <40>;
+		pin-miso = <41>;
+		pin-sclk = <39>;
+		pin-wp = <GPIO_PIN_NONE>;
+		pin-hd = <GPIO_PIN_NONE>;
+		max-transfer-size = <65536>;
 	};
 };