remove usbcom

1 files changed, 0 insertions, 158 deletions

diff --git a/sw/usbcom/usb/usb.go b/sw/usbcom/usb/usb.go
deleted file mode 100644
index c920884..0000000
--- a/sw/usbcom/usb/usb.go
+++ /dev/null
@@ -1,158 +0,0 @@
-package usb
-
-import (
-	"fmt"
-
-	"github.com/google/gousb"
-)
-
-const (
-	vendorId  gousb.ID = 0x04d8
-	productId gousb.ID = 0x000a
-
-	inEndpointAddr  = 0x82
-	outEndpointAddr = 0x02
-)
-
-type Device struct {
-	ctx       *gousb.Context
-	dev       *gousb.Device
-	closeIntf func()
-	in        *gousb.ReadStream  // IN endpoint (device->host)
-	out       *gousb.WriteStream // OUT endpoint (host->device)
-}
-
-func Connect() (*Device, error) {
-	ctx := gousb.NewContext()
-
-	dev, err := ctx.OpenDeviceWithVIDPID(vendorId, productId)
-	if err != nil {
-		ctx.Close()
-		return nil, err
-	}
-
-	intf, closeIntf, err := interfaceByClass(dev, gousb.ClassData)
-	if err != nil {
-		dev.Close()
-		ctx.Close()
-		return nil, err
-	}
-
-	in, err := inEndpoint(intf)
-	if err != nil {
-		closeIntf()
-		dev.Close()
-		ctx.Close()
-		return nil, err
-	}
-
-	out, err := outEndpoint(intf)
-	if err != nil {
-		in.Close()
-		closeIntf()
-		dev.Close()
-		ctx.Close()
-		return nil, err
-	}
-
-	return &Device{
-		ctx,
-		dev,
-		closeIntf,
-		in, out,
-	}, nil
-}
-
-func interfaceByClass(dev *gousb.Device, class gousb.Class) (intf *gousb.Interface, close func(), err error) {
-	cfgNum, err := dev.ActiveConfigNum()
-	if err != nil {
-		return nil, nil, fmt.Errorf("failed to get active config number of device %s: %v", dev, err)
-	}
-	cfg, err := dev.Config(cfgNum)
-	if err != nil {
-		return nil, nil, fmt.Errorf("failed to claim config %d of device %s: %v", cfgNum, dev, err)
-	}
-
-	intfNum, altNum, ok := func() (int, int, bool) {
-		for i, intf := range cfg.Desc.Interfaces {
-			for a, alt := range intf.AltSettings {
-				if alt.Class == class {
-					return i, a, true
-				}
-			}
-		}
-		return -1, -1, false
-	}()
-	if !ok {
-		cfg.Close()
-		return nil, nil, fmt.Errorf("failed to get %s interface of device %s: %v", class, dev, err)
-	}
-
-	intf, err = cfg.Interface(intfNum, altNum)
-	if err != nil {
-		cfg.Close()
-		return nil, nil, fmt.Errorf("failed to select interface (%d,%d) of config %d of device %s: %v", intfNum, altNum, cfgNum, dev, err)
-	}
-
-	return intf, func() {
-		intf.Close()
-		cfg.Close()
-	}, nil
-}
-
-func inEndpoint(intf *gousb.Interface) (*gousb.ReadStream, error) {
-	ep, err := intf.InEndpoint(inEndpointAddr)
-	if err != nil {
-		return nil, err
-	}
-
-	desc, ok := intf.Setting.Endpoints[inEndpointAddr]
-	if !ok {
-		return nil, fmt.Errorf("no such endpoint: %x", inEndpointAddr)
-	}
-
-	return ep.NewStream(desc.MaxPacketSize, 1)
-}
-
-func outEndpoint(intf *gousb.Interface) (*gousb.WriteStream, error) {
-	ep, err := intf.OutEndpoint(outEndpointAddr)
-	if err != nil {
-		return nil, err
-	}
-
-	desc, ok := intf.Setting.Endpoints[outEndpointAddr]
-	if !ok {
-		return nil, fmt.Errorf("no such endpoint: %x", outEndpointAddr)
-	}
-
-	return ep.NewStream(desc.MaxPacketSize, 1)
-}
-
-func (dev *Device) Close() error {
-	outErr := dev.out.Close()
-	inErr := dev.in.Close()
-	dev.closeIntf()
-	devErr := dev.dev.Close()
-	ctxErr := dev.ctx.Close()
-
-	return nonNil(outErr, inErr, devErr, ctxErr)
-}
-
-func nonNil(errs ...error) error {
-	for _, err := range errs {
-		if err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-// Read from the IN endpoint (device->host)
-func (dev *Device) Read(p []byte) (n int, err error) {
-	return dev.in.Read(p)
-}
-
-// Write to the OUT endpoint (host->device)
-func (dev *Device) Write(p []byte) (n int, err error) {
-	return dev.out.Write(p)
-}