Add Adafruit RP2040 boards

.gitignore

@@ -10,3 +10,4 @@ build
 *.txt.user
 __pycache__
 venv/
+.vscode

firmware/source/CMakeLists.txt

@@ -12,6 +12,12 @@ project(u2if VERSION "0.3.0")
 # initialize the Pico SDK
 pico_sdk_init()
 
+# define board, pico is default
+# BOARD_FEATHER, BOARD_ITSYBITSY, BOARD_QTPY, BOARD_QT2040_TRINKEY
+add_compile_definitions(BOARD_FEATHER)
+# might help for feather?
+#add_compile_definitions(PICO_DEFAULT_BOOT_STAGE2_FILE=${CMAKE_CURRENT_SOURCE_DIR}/../pico-sdk/src/rp2_common/boot_stage2/boot2_generic_03h.S)
+
 # Enable wanted peripherals
 set(I2C0_ENABLE 1)
 set(I2C1_ENABLE 1)

firmware/source/interfaces/I2cMaster.cpp

@@ -1,7 +1,6 @@
 #include "I2cMaster.h"
 #include "string.h"
 
-
 I2CMaster::I2CMaster(uint8_t i2cIndex, uint streamBufferSize = 512)
     : StreamedInterface(streamBufferSize),
       _i2cInst(i2cIndex == 0 ? i2c0 : i2c1),

firmware/source/interfaces/PicoInterfacesBoard.h

@@ -1,6 +1,8 @@
 #ifndef _PICO_INTERFACES_BOARD_H
 #define _PICO_INTERFACES_BOARD_H
 
+#include "pins.h"
+
 #define HID_CMD_SIZE 64
 #define HID_RESPONSE_SIZE 64
 
@@ -22,29 +24,29 @@ namespace Pin {
         GP27_ADC1 = 27,
 
         // UART0
-        GP0_UART0_TX = 0,
-        GP1_UART0_RX = 1,
+        GP0_UART0_TX = U2IF_UART0_TX,
+        GP1_UART0_RX = U2IF_UART0_RX,
 
         // SPI0
-        GP18_SPI0_CK = 18,
-        GP19_SPI0_MOSI = 19,
-        GP16_SPI0_MISO = 16,
+        GP18_SPI0_CK = U2IF_SPI0_CK,
+        GP19_SPI0_MOSI = U2IF_SPI0_MOSI,
+        GP16_SPI0_MISO = U2IF_SPI0_MISO,
         GP17_SPI0_CS1 = 17,
         GP20_SPI0_CS2 = 20,
 
         // SPI1
-        GP10_SPI1_CK = 10,
-        GP11_SPI1_MOSI = 11,
-        GP12_SPI1_MISO = 12,
+        GP10_SPI1_CK = U2IF_SPI1_CK,
+        GP11_SPI1_MOSI = U2IF_SPI1_MOSI,
+        GP12_SPI1_MISO = U2IF_SPI1_MISO,
         GP13_SPI1_CS1 = 13,
 
         // I2C0
-        GP4_I2C0_SDA = 4,
-        GP5_I2C0_SCL = 5,
+        GP4_I2C0_SDA = U2IF_I2C0_SDA,
+        GP5_I2C0_SCL = U2IF_I2C0_SCL,
 
         // I2C1
-        GP14_I2C1_SDA = 14,
-        GP15_I2C1_SCL = 15
+        GP14_I2C1_SDA = U2IF_I2C1_SDA,
+        GP15_I2C1_SCL = U2IF_I2C1_SCL
     };
 }
 

firmware/source/interfaces/pins.h

@@ -0,0 +1,124 @@
+/**
+ * Pin Mappings
+ * 
+ * For now, pins are assigned for all interfaces, even if not routed. This
+ * doesn't seem to cause any issues, and unused interfaces are not exposed
+ * in Blinka.
+ *
+*/
+
+//---------------------------------------------------------
+// Feather 
+//---------------------------------------------------------
+#if defined (BOARD_FEATHER)
+  // I2C0
+  #define U2IF_I2C0_SDA 4
+  #define U2IF_I2C0_SCL 5
+  // I2C1
+  #define U2IF_I2C1_SDA 2
+  #define U2IF_I2C1_SCL 3
+  // SPI0
+  #define U2IF_SPI0_CK 18
+  #define U2IF_SPI0_MOSI 19
+  #define U2IF_SPI0_MISO 20
+  // SPI1
+  #define U2IF_SPI1_CK 10
+  #define U2IF_SPI1_MOSI 11
+  #define U2IF_SPI1_MISO 12
+  // UART0
+  #define U2IF_UART0_TX 0
+  #define U2IF_UART0_RX 1
+
+//---------------------------------------------------------
+// QT Py
+//---------------------------------------------------------
+#elif defined (BOARD_QTPY)
+
+  // I2C0
+  #define U2IF_I2C0_SDA 24
+  #define U2IF_I2C0_SCL 25
+  // I2C1
+  #define U2IF_I2C1_SDA 22
+  #define U2IF_I2C1_SCL 23
+  // SPI0
+  #define U2IF_SPI0_CK 6
+  #define U2IF_SPI0_MOSI 3
+  #define U2IF_SPI0_MISO 4
+  // SPI1
+  #define U2IF_SPI1_CK 10
+  #define U2IF_SPI1_MOSI 11
+  #define U2IF_SPI1_MISO 12
+  // UART0
+  #define U2IF_UART0_TX 20
+  #define U2IF_UART0_RX 5
+
+//---------------------------------------------------------
+// Itsy Bitsy
+//---------------------------------------------------------
+#elif defined (BOARD_ITSYBITSY)
+
+  // I2C0
+  #define U2IF_I2C0_SDA 4
+  #define U2IF_I2C0_SCL 5
+  // I2C1
+  #define U2IF_I2C1_SDA 2
+  #define U2IF_I2C1_SCL 3
+  // SPI0
+  #define U2IF_SPI0_CK 18
+  #define U2IF_SPI0_MOSI 19
+  #define U2IF_SPI0_MISO 20
+  // SPI1
+  #define U2IF_SPI1_CK 10
+  #define U2IF_SPI1_MOSI 11
+  #define U2IF_SPI1_MISO 12
+  // UART0
+  #define U2IF_UART0_TX 0
+  #define U2IF_UART0_RX 1
+
+//---------------------------------------------------------
+// QT2040 Trinkey
+//---------------------------------------------------------
+#elif defined (BOARD_QT2040_TRINKEY)
+
+  // I2C0
+  #define U2IF_I2C0_SDA 16
+  #define U2IF_I2C0_SCL 17
+  // I2C1
+  #define U2IF_I2C1_SDA 2
+  #define U2IF_I2C1_SCL 3
+  // SPI0
+  #define U2IF_SPI0_CK 6
+  #define U2IF_SPI0_MOSI 7
+  #define U2IF_SPI0_MISO 8
+  // SPI1
+  #define U2IF_SPI1_CK 10
+  #define U2IF_SPI1_MOSI 11
+  #define U2IF_SPI1_MISO 12
+  // UART0
+  #define U2IF_UART0_TX 1
+  #define U2IF_UART0_RX 2
+
+//---------------------------------------------------------
+// Pico (default)
+//---------------------------------------------------------
+#else
+
+  // I2C0
+  #define U2IF_I2C0_SDA 4
+  #define U2IF_I2C0_SCL 5
+  // I2C1
+  #define U2IF_I2C1_SDA 14
+  #define U2IF_I2C1_SCL 15
+  // SPI0
+  #define U2IF_SPI0_CK 18
+  #define U2IF_SPI0_MOSI 19
+  #define U2IF_SPI0_MISO 16
+  // SPI1
+  #define U2IF_SPI1_CK 10
+  #define U2IF_SPI1_MOSI 11
+  #define U2IF_SPI1_MISO 12
+  // UART0
+  #define U2IF_UART0_TX 0
+  #define U2IF_UART0_RX 1
+
+#endif

firmware/source/usb_descriptors.c

@@ -37,8 +37,34 @@
  *   [MSB]         HID | MSC | CDC          [LSB]
  */
 #define _PID_MAP(itf, n)  ( (CFG_TUD_##itf) << (n) )
-#define USB_PID           (0x4000 | _PID_MAP(CDC, 0) | _PID_MAP(MSC, 1) | _PID_MAP(HID, 2) | \
-                           _PID_MAP(MIDI, 3) | _PID_MAP(VENDOR, 4) )
+
+#if defined(BOARD_FEATHER)
+  #define USB_MFG "Adafruit"
+  #define USB_PRD "Feather RP2040 U2IF"
+  #define USB_VID 0x239A
+  #define USB_PID 0x00F1
+#elif defined(BOARD_ITSYBITSY)
+  #define USB_MFG "Adafruit"
+  #define USB_PRD "ItsyBitsy RP2040 U2IF"
+  #define USB_VID 0x239A
+  #define USB_PID 0x00FD
+#elif defined(BOARD_QTPY)
+  #define USB_MFG "Adafruit"
+  #define USB_PRD "QT Py RP2040 U2IF"
+  #define USB_VID 0x239A
+  #define USB_PID 0x00F7
+#elif defined(BOARD_QT2040_TRINKEY)
+  #define USB_MFG "Adafruit"
+  #define USB_PRD "QT2040 Trinkey U2IF"
+  #define USB_VID 0x239A
+  #define USB_PID 0x0109
+#else
+  #define USB_MFG "Pico"
+  #define USB_PRD "U2IF"
+  #define USB_VID 0xCAFE
+  #define USB_PID           (0x4000 | _PID_MAP(CDC, 0) | _PID_MAP(MSC, 1) | _PID_MAP(HID, 2) | \
+                            _PID_MAP(MIDI, 3) | _PID_MAP(VENDOR, 4) )
+#endif
 
 //--------------------------------------------------------------------+
 // Device Descriptors
@@ -58,7 +84,7 @@ tusb_desc_device_t const desc_device =
 
                 .bMaxPacketSize0    = CFG_TUD_ENDPOINT0_SIZE,
 
-                .idVendor           = 0xCafe,
+                .idVendor           = USB_VID,
                 .idProduct          = USB_PID,
                 .bcdDevice          = 0x0100,
 
@@ -146,8 +172,8 @@ uint8_t const *tud_descriptor_configuration_cb(uint8_t index) {
 char const *string_desc_arr[] =
         {
                 (const char[]) {0x09, 0x04}, // 0: is supported language is English (0x0409)
-                "Pico",                     // 1: Manufacturer
-                "U2IF",              // 2: Product
+                USB_MFG,                     // 1: Manufacturer
+                USB_PRD,              // 2: Product
                 "",                      // 3: Serials, should use chip ID
                 "CDC Streamed data channel"  ,           // 4: CDC Interface
                 "HID Command channel",                     // 5: HID