tinygo-org/tinygo
1
0
Fork 0
mirror of https://github.com/tinygo-org/tinygo.git synced 2026-08-09 13:33:39 +00:00
Code Issues Packages Projects Releases 6 Wiki Activity

usb: add support for midi

Browse Source
This commit is contained in:
sago35
2022-06-27 23:24:48 +09:00
committed by Ron Evans
parent 2f843af286
commit 8fed063820
6 changed files with 246 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/machine/usb.go
+26 -10
View File
@@ -32,6 +32,7 @@ var usbDescriptor = descriptorCDC
const (
usbDescriptorConfigCDC = 1 << iota
usbDescriptorConfigHID
usbDescriptorConfigMIDI
)
var usbDescriptorConfig uint8 = usbDescriptorConfigCDC
@@ -137,11 +138,13 @@ const (
usb_HID_INTERFACE = 2 // HID
// Endpoint
usb_CONTROL_ENDPOINT = 0
usb_CDC_ENDPOINT_ACM = 1
usb_CDC_ENDPOINT_OUT = 2
usb_CDC_ENDPOINT_IN = 3
usb_HID_ENDPOINT_IN = 4
usb_CONTROL_ENDPOINT = 0
usb_CDC_ENDPOINT_ACM = 1
usb_CDC_ENDPOINT_OUT = 2
usb_CDC_ENDPOINT_IN = 3
usb_HID_ENDPOINT_IN = 4
usb_MIDI_ENDPOINT_OUT = 5
usb_MIDI_ENDPOINT_IN = 6
// bmRequestType
usb_REQUEST_HOSTTODEVICE = 0x00
@@ -170,11 +173,13 @@ var (
usbSetupHandler [numberOfInterfaces]func(USBSetup) bool
endPoints = []uint32{
usb_CONTROL_ENDPOINT: usb_ENDPOINT_TYPE_CONTROL,
usb_CDC_ENDPOINT_ACM: (usb_ENDPOINT_TYPE_INTERRUPT | usbEndpointIn),
usb_CDC_ENDPOINT_OUT: (usb_ENDPOINT_TYPE_BULK | usbEndpointOut),
usb_CDC_ENDPOINT_IN: (usb_ENDPOINT_TYPE_BULK | usbEndpointIn),
usb_HID_ENDPOINT_IN: (usb_ENDPOINT_TYPE_DISABLE), // Interrupt In
usb_CONTROL_ENDPOINT: usb_ENDPOINT_TYPE_CONTROL,
usb_CDC_ENDPOINT_ACM: (usb_ENDPOINT_TYPE_INTERRUPT | usbEndpointIn),
usb_CDC_ENDPOINT_OUT: (usb_ENDPOINT_TYPE_BULK | usbEndpointOut),
usb_CDC_ENDPOINT_IN: (usb_ENDPOINT_TYPE_BULK | usbEndpointIn),
usb_HID_ENDPOINT_IN: (usb_ENDPOINT_TYPE_DISABLE), // Interrupt In
usb_MIDI_ENDPOINT_OUT: (usb_ENDPOINT_TYPE_DISABLE), // Bulk Out
usb_MIDI_ENDPOINT_IN: (usb_ENDPOINT_TYPE_DISABLE), // Bulk In
}
)
@@ -222,6 +227,8 @@ func sendDescriptor(setup USBSetup) {
// composite descriptor
if (usbDescriptorConfig & usbDescriptorConfigHID) > 0 {
usbDescriptor = descriptorCDCHID
} else if (usbDescriptorConfig & usbDescriptorConfigMIDI) > 0 {
usbDescriptor = descriptorCDCMIDI
} else {
usbDescriptor = descriptorCDC
}
@@ -360,3 +367,12 @@ func EnableHID(txHandler func(), rxHandler func([]byte), setupHandler func(USBSe
usbTxHandler[usb_HID_ENDPOINT_IN] = txHandler
usbSetupHandler[usb_HID_INTERFACE] = setupHandler // 0x03 (HID - Human Interface Device)
}
// EnableMIDI enables MIDI. This function must be executed from the init().
func EnableMIDI(txHandler func(), rxHandler func([]byte), setupHandler func(USBSetup) bool) {
usbDescriptorConfig |= usbDescriptorConfigMIDI
endPoints[usb_MIDI_ENDPOINT_OUT] = (usb_ENDPOINT_TYPE_BULK | usbEndpointOut)
endPoints[usb_MIDI_ENDPOINT_IN] = (usb_ENDPOINT_TYPE_BULK | usbEndpointIn)
usbRxHandler[usb_MIDI_ENDPOINT_OUT] = rxHandler
usbTxHandler[usb_MIDI_ENDPOINT_IN] = txHandler
}