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Code Issues Packages Projects Releases 6 Wiki Activity

Add USB HID joystick support (#3366)

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machine/usb: add USB HID joystick support
This commit is contained in:
irieda
2023-01-08 06:30:40 +09:00
committed by GitHub
parent 0566bbfeb4
commit a7ff2731b9
10 changed files with 482 additions and 14 deletions
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src/machine/usb.go
+21 -1
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@@ -3,6 +3,8 @@
package machine
import (
"bytes"
"encoding/binary"
"errors"
"machine/usb"
)
@@ -89,8 +91,9 @@ var (
usb.CDC_ENDPOINT_OUT: (usb.ENDPOINT_TYPE_BULK | usb.EndpointOut),
usb.CDC_ENDPOINT_IN: (usb.ENDPOINT_TYPE_BULK | usb.EndpointIn),
usb.HID_ENDPOINT_IN: (usb.ENDPOINT_TYPE_DISABLE), // Interrupt In
usb.MIDI_ENDPOINT_OUT: (usb.ENDPOINT_TYPE_DISABLE), // Bulk Out
usb.HID_ENDPOINT_OUT: (usb.ENDPOINT_TYPE_DISABLE), // Interrupt Out
usb.MIDI_ENDPOINT_IN: (usb.ENDPOINT_TYPE_DISABLE), // Bulk In
usb.MIDI_ENDPOINT_OUT: (usb.ENDPOINT_TYPE_DISABLE), // Bulk Out
}
)
@@ -108,6 +111,8 @@ func sendDescriptor(setup usb.Setup) {
usbDescriptor = usb.DescriptorCDCHID
case (usbDescriptorConfig & usb.DescriptorConfigMIDI) > 0:
usbDescriptor = usb.DescriptorCDCMIDI
case (usbDescriptorConfig & usb.DescriptorConfigJoystick) > 0:
usbDescriptor = usb.DescriptorCDCJoystick
default:
usbDescriptor = usb.DescriptorCDC
}
@@ -260,3 +265,18 @@ func EnableMIDI(txHandler func(), rxHandler func([]byte), setupHandler func(usb.
usbRxHandler[usb.MIDI_ENDPOINT_OUT] = rxHandler
usbTxHandler[usb.MIDI_ENDPOINT_IN] = txHandler
}
// EnableJoystick enables HID. This function must be executed from the init().
func EnableJoystick(txHandler func(), rxHandler func([]byte), setupHandler func(usb.Setup) bool, hidDesc []byte) {
idx := bytes.Index(usb.DescriptorCDCJoystick.Configuration, []byte{
0x09, 0x21, 0x11, 0x01, 0x00, 0x01, 0x22,
})
binary.LittleEndian.PutUint16(usb.DescriptorCDCJoystick.Configuration[idx+7:idx+9], uint16(len(hidDesc)))
usb.DescriptorCDCJoystick.HID[2] = hidDesc
usbDescriptorConfig |= usb.DescriptorConfigJoystick
endPoints[usb.HID_ENDPOINT_OUT] = (usb.ENDPOINT_TYPE_INTERRUPT | usb.EndpointOut)
usbRxHandler[usb.HID_ENDPOINT_OUT] = rxHandler
endPoints[usb.HID_ENDPOINT_IN] = (usb.ENDPOINT_TYPE_INTERRUPT | usb.EndpointIn)
usbTxHandler[usb.HID_ENDPOINT_IN] = txHandler
usbSetupHandler[usb.HID_INTERFACE] = setupHandler // 0x03 (HID - Human Interface Device)
}