Add ESP32_C6 missing graphics (#2988)

Author: AdrianSoundy

targets/ESP32/CMakePresets.json

@@ -293,6 +293,7 @@
                 "API_nanoFramework.Device.Bluetooth": "ON",
                 "API_nanoFramework.Networking.Thread": "ON",
                 "THREAD_DEVICE_TYPE": "FTD",
+                "API_nanoFramework.Graphics": "ON",
                 "GRAPHICS_DISPLAY": "Generic_SPI.cpp",
                 "TOUCHPANEL_DEVICE": "XPT2046.cpp",
                 "GRAPHICS_DISPLAY_INTERFACE": "Spi_To_Display.cpp",

targets/ESP32/ESP32_C6/nanoCLR/nanoFramework.Graphics/Graphics_Memory.cpp

@@ -0,0 +1,81 @@
+//
+// Copyright (c) .NET Foundation and Contributors
+// See LICENSE file in the project root for full license information.
+//
+
+#ifndef GRAPHICS_MEMORY_SETUP_
+#define GRAPHICS_MEMORY_SETUP_
+
+#include <nanoPAL.h>
+#include <target_platform.h>
+#include <esp32_idf.h>
+#include <Esp32_DeviceMapping.h>
+#include <GraphicsMemoryHeap.h>
+
+struct GraphicsMemory g_GraphicsMemory;
+
+// Choosing Integrate RAM into ESP32 memory map from CONFIG_SPIRAM_USE.
+// This is the most basic option for external SPI RAM integration
+// During the ESP IDF start-up, external RAM is mapped into the data address space,
+// starting at address 0x3F800000 (byte - accessible).
+// The length of this region is the same as the SPI RAM size(up to the limit of 4 MB).
+
+// Applications can manually place data in external memory by creating pointers to this region.
+// So if an application uses external memory, it is responsible for all management of the external SPI RAM.
+// coordinating buffer usage, preventing corruption, etc.
+
+static CLR_UINT8 *heapStartingAddress = 0;
+static CLR_UINT8 *heapEndingAddress = 0;
+
+bool GraphicsMemory::GraphicsHeapLocation(
+    CLR_UINT32 requested,
+    CLR_UINT8 *&graphicsStartingAddress,
+    CLR_UINT8 *&graphicsEndingAddress)
+{
+    // requesting 2MB
+    CLR_INT32 graphicsMemoryBlockSize = 2 * 1024 * 1024;
+
+    CLR_INT32 memoryCaps = MALLOC_CAP_8BIT | MALLOC_CAP_32BIT | MALLOC_CAP_SPIRAM;
+
+    if (heapStartingAddress != 0)
+    {
+        graphicsStartingAddress = heapStartingAddress;
+        graphicsEndingAddress = heapEndingAddress;
+        return true;
+    }
+
+    // We don't want to allocate upfront
+    if (requested == 0)
+    {
+        // We don't allocate anything here
+        return false;
+    }
+
+    // Get Largest free block in SPIRam
+    CLR_INT32 spiramMaxSize = heap_caps_get_largest_free_block(memoryCaps);
+    if (spiramMaxSize == 0)
+    {
+        // No SPIRAM, try and allocate small block in normal ram to keep allocator happy for
+        // people trying to run graphics on boards without SPIRAM
+        // Should be able to use with small screens
+        memoryCaps ^= MALLOC_CAP_SPIRAM;
+
+        spiramMaxSize = requested;
+    }
+
+    if (spiramMaxSize < graphicsMemoryBlockSize) // limit the size to what is available
+    {
+        graphicsMemoryBlockSize = spiramMaxSize;
+    }
+    graphicsStartingAddress = (CLR_UINT8 *)heap_caps_malloc(graphicsMemoryBlockSize, memoryCaps);
+    ASSERT(graphicsStartingAddress != NULL);
+    graphicsEndingAddress = (CLR_UINT8 *)(graphicsStartingAddress + graphicsMemoryBlockSize);
+
+    // Save where we allocated it for restarts
+    heapStartingAddress = graphicsStartingAddress;
+    heapEndingAddress = graphicsEndingAddress;
+
+    return true;
+}
+
+#endif // GRAPHICS_MEMORY_SETUP_

targets/ESP32/ESP32_C6/nanoCLR/nanoFramework.Graphics/Spi_To_TouchPanel.cpp

@@ -0,0 +1,38 @@
+//
+// Copyright (c) 2017 The nanoFramework project contributors
+// See LICENSE file in the project root for full license information.
+//
+
+#define UNUSED(x) (void)x
+
+#ifndef SPI_TO_TOUCHPANEL_H
+#define SPI_TO_TOUCHPANEL_H
+
+#include "nanoCLR_Types.h"
+#include <nanoPAL.h>
+#include <target_platform.h>
+#include <esp32_idf.h>
+
+#include "TouchInterface.h"
+
+bool TouchInterface::Initialize()
+{
+    // Setup SPI configuration
+
+    return true;
+}
+
+CLR_UINT8 *TouchInterface::Write_Read(
+    CLR_UINT8 *valuesToSend,
+    CLR_UINT16 numberOfValuesToSend,
+    CLR_UINT16 numberValuesExpected)
+{
+
+    UNUSED(valuesToSend);
+    UNUSED(numberOfValuesToSend);
+    UNUSED(numberValuesExpected);
+
+    return 0;
+}
+
+#endif // SPI_TO_TOUCHPANEL_H

targets/ESP32/_IDF/esp32c6/partitions_nanoclr_16mb.csv

@@ -6,10 +6,10 @@
 ###############################################################################################################################
 nvs,      data, nvs,     0x9000,   0x6000,
 phy_init, data, phy,     0xf000,   0x1000,
-# Factory area for NanoCLR - 1664k
-factory,  app, factory,  0x10000,  0x220000,
-# Deployment area for Managed code 2432k
-deploy,   data, 0x84,    0x230000, 0x260000, 
+# Factory area for NanoCLR - 2240k
+factory,  app, factory,  0x10000,  0x230000,
+# Deployment area for Managed code 2368k
+deploy,   data, 0x84,    0x240000, 0x250000, 
 # Config data for Network, Wireless, certificates, user data  3MB
 config,   data, littlefs,  0x490000, 0x300000,
 ##########################################

targets/ESP32/_IDF/esp32c6/partitions_nanoclr_4mb.csv

@@ -6,10 +6,10 @@
 ###############################################################################################################################
 nvs,      data, nvs,     0x9000,   0x6000,
 phy_init, data, phy,     0xf000,   0x1000,
-# Factory area for nanoCLR - 1664k
-factory,  app, factory,  0x10000,  0x220000,
-# Deployment area for Managed code 1600k
-deploy,   data, 0x84,    0x230000, 0x190000, 
+# Factory area for nanoCLR - 2240k
+factory,  app, factory,  0x10000,  0x230000,
+# Deployment area for Managed code 1536k
+deploy,   data, 0x84,    0x240000, 0x180000, 
 # Config data for Network, Wireless, certificates, user data  256k
 config,   data, littlefs,  0x3C0000, 0x40000,
 #################################

targets/ESP32/_IDF/esp32c6/partitions_nanoclr_8mb.csv

@@ -6,10 +6,10 @@
 ###############################################################################################################################
 nvs,      data, nvs,     0x9000,   0x6000,
 phy_init, data, phy,     0xf000,   0x1000,
-# Factory area for NanoCLR - 1664k
-factory,  app, factory,  0x10000,  0x220000,
-# Deployment area for Managed code 2432k
-deploy,   data, 0x84,    0x230000, 0x260000, 
+# Factory area for NanoCLR - 2240k
+factory,  app, factory,  0x10000,  0x230000,
+# Deployment area for Managed code 2368k
+deploy,   data, 0x84,    0x240000, 0x250000, 
 # Config data for Network, Wireless, certificates, user data  2Mb
 config,   data, littlefs,  0x490000, 0x200000,  
 ##########################################