machine/usb: allow USB Endpoint settings to be changed externally

src/machine/usb/hid/hid.go

@@ -4,6 +4,7 @@ import (
 	"errors"
 	"machine"
 	"machine/usb"
+	"machine/usb/descriptor"
 )
 
 // from usb-hid.go
@@ -32,7 +33,21 @@ var size int
 // calls machine.EnableHID for USB configuration
 func SetHandler(d hidDevicer) {
 	if size == 0 {
-		machine.EnableHID(handler, nil, setupHandler)
+		machine.ConfigureUSBEndpoint(descriptor.CDCHID,
+			[]usb.EndpointConfig{
+				{
+					No:        usb.HID_ENDPOINT_IN,
+					IsIn:      true,
+					Type:      usb.ENDPOINT_TYPE_INTERRUPT,
+					TxHandler: handler,
+				},
+			},
+			[]usb.SetupConfig{
+				{
+					No:      usb.HID_INTERFACE,
+					Handler: setupHandler,
+				},
+			})
 	}
 
 	devices[size] = d

src/machine/usb/hid/joystick/joystick.go

@@ -3,6 +3,7 @@ package joystick
 import (
 	"machine"
 	"machine/usb"
+	"machine/usb/descriptor"
 	"machine/usb/hid"
 )
 
@@ -32,18 +33,50 @@ func UseSettings(def Definitions, rxHandlerFunc func(b []byte), setupFunc func(s
 	if setupFunc == nil {
 		setupFunc = hid.DefaultSetupHandler
 	}
-	machine.EnableJoystick(js.handler, rxHandlerFunc, setupFunc, hidDesc)
+	if rxHandlerFunc == nil {
+		rxHandlerFunc = js.rxHandlerFunc
+	}
+	if len(hidDesc) == 0 {
+		hidDesc = descriptor.JoystickDefaultHIDReport
+	}
+	class, err := descriptor.FindClassHIDType(descriptor.CDCJoystick.Configuration, descriptor.ClassHIDJoystick.Bytes())
+	if err != nil {
+		// TODO: some way to notify about error
+		return nil
+	}
+
+	class.ClassLength(uint16(len(hidDesc)))
+	descriptor.CDCJoystick.HID[2] = hidDesc
+
+	machine.ConfigureUSBEndpoint(descriptor.CDCJoystick,
+		[]usb.EndpointConfig{
+			{
+				No:        usb.HID_ENDPOINT_OUT,
+				IsIn:      false,
+				Type:      usb.ENDPOINT_TYPE_INTERRUPT,
+				RxHandler: rxHandlerFunc,
+			},
+			{
+				No:        usb.HID_ENDPOINT_IN,
+				IsIn:      true,
+				Type:      usb.ENDPOINT_TYPE_INTERRUPT,
+				TxHandler: js.handler,
+			},
+		},
+		[]usb.SetupConfig{
+			{
+				No:      usb.HID_INTERFACE,
+				Handler: setupFunc,
+			},
+		},
+	)
 	Joystick = js
 	return js
 }
 
 func newDefaultJoystick() *joystick {
 	def := DefaultDefinitions()
-	js := &joystick{
-		State: def.NewState(),
-		buf:   hid.NewRingBuffer(),
-	}
-	machine.EnableJoystick(js.handler, js.rxHandler, hid.DefaultSetupHandler, def.Descriptor())
+	js := UseSettings(def, nil, nil, nil)
 	return js
 }