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cyw43439: HCI implementation
Signed-off-by: deadprogram <[email protected]>
1 parent 9905abd commit 457af75

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14 files changed

+201
-21
lines changed

14 files changed

+201
-21
lines changed

‎Makefile‎

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@@ -44,6 +44,10 @@ smoketest-tinygo:
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@md5sum test.hex
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$(TINYGO) build -o test.uf2 -size=short -target=circuitplay-express -tags="hci hci_uart" ./examples/advertisement
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@md5sum test.hex
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$(TINYGO) build -o test.uf2 -size=short -target=pico-w ./examples/discover
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@md5sum test.hex
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$(TINYGO) build -o test.uf2 -size=short -target=badger2040-w ./examples/advertisement
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@md5sum test.hex
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smoketest-linux:
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# Test on Linux.

‎adapter_cyw43439.go‎

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@@ -0,0 +1,116 @@
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//go:build cyw43439
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package bluetooth
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import (
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"machine"
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"log/slog"
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"github.com/soypat/cyw43439"
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)
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const maxConnections = 1
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// Adapter represents a SPI connection to the HCI controller on an attached CYW4349 module.
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type Adapter struct {
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hciAdapter
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}
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// DefaultAdapter is the default adapter on the current system.
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//
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// Make sure to call Enable() before using it to initialize the adapter.
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var DefaultAdapter = &Adapter{
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hciAdapter: hciAdapter{
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isDefault: true,
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connectHandler: func(device Device, connected bool) {
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return
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},
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connectedDevices: make([]Device, 0, maxConnections),
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},
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}
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// Enable configures the BLE stack. It must be called before any
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// Bluetooth-related calls (unless otherwise indicated).
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func (a *Adapter) Enable() error {
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if debug {
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println("Initializing CYW43439 device")
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}
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dev := cyw43439.NewPicoWDevice()
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cfg := cyw43439.DefaultBluetoothConfig()
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if debug {
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cfg.Logger = slog.New(slog.NewTextHandler(machine.USBCDC, &slog.HandlerOptions{
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Level: slog.LevelDebug - 2,
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}))
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}
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err := dev.Init(cfg)
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if err != nil {
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if debug {
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println("Error initializing CYW43439 device", err.Error())
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}
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return err
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}
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transport := &hciSPI{dev: dev}
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a.hci, a.att = newBLEStack(transport)
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if debug {
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println("Enabling CYW43439 device")
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}
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a.enable()
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if debug {
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println("Enabled CYW43439 device")
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}
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return nil
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}
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type hciSPI struct {
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dev *cyw43439.Device
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}
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func (h *hciSPI) startRead() {
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}
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func (h *hciSPI) endRead() {
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}
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func (h *hciSPI) Buffered() int {
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return h.dev.BufferedHCI()
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}
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func (h *hciSPI) ReadByte() (byte, error) {
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var buf [1]byte
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r, err := h.dev.HCIReadWriter()
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if err != nil {
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return 0, err
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}
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if _, err := r.Read(buf[:]); err != nil {
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return 0, err
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}
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return buf[0], nil
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}
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func (h *hciSPI) Read(buf []byte) (int, error) {
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r, err := h.dev.HCIReadWriter()
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if err != nil {
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return 0, err
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}
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return r.Read(buf)
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}
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func (h *hciSPI) Write(buf []byte) (int, error) {
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w, err := h.dev.HCIReadWriter()
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if err != nil {
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return 0, err
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}
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return w.Write(buf)
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}

‎adapter_hci.go‎

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@@ -1,4 +1,4 @@
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//go:build hci || ninafw
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//go:build hci || ninafw || cyw43439
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package bluetooth
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@@ -25,9 +25,18 @@ type hciAdapter struct {
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}
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func (a *hciAdapter) enable() error {
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a.hci.start()
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if err := a.hci.start(); err != nil {
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if debug {
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println("error starting HCI:", err.Error())
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}
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return err
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}
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if err := a.hci.reset(); err != nil {
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if debug {
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println("error resetting HCI:", err.Error())
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}
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return err
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}
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‎adapter_hci_uart.go‎

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@@ -96,6 +96,10 @@ func (h *hciUART) ReadByte() (byte, error) {
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return h.uart.ReadByte()
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}
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func (h *hciUART) Read(buf []byte) (int, error) {
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return h.uart.Read(buf)
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}
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const writeAttempts = 200
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func (h *hciUART) Write(buf []byte) (int, error) {

‎adapter_ninafw.go‎

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@@ -108,6 +108,10 @@ func (h *hciUART) ReadByte() (byte, error) {
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return h.uart.ReadByte()
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}
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func (h *hciUART) Read(buf []byte) (int, error) {
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return h.uart.Read(buf)
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}
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const writeAttempts = 200
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func (h *hciUART) Write(buf []byte) (int, error) {

‎att_hci.go‎

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@@ -1,4 +1,4 @@
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//go:build hci || ninafw
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//go:build hci || ninafw || cyw43439
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package bluetooth
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‎gap_hci.go‎

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@@ -1,4 +1,4 @@
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//go:build hci || ninafw
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//go:build hci || ninafw || cyw43439
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package bluetooth
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‎gattc_hci.go‎

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@@ -1,4 +1,4 @@
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//go:build hci || ninafw
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//go:build hci || ninafw || cyw43439
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package bluetooth
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‎gatts_hci.go‎

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@@ -1,4 +1,4 @@
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//go:build hci || ninafw
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//go:build hci || ninafw || cyw43439
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package bluetooth
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‎go.mod‎

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@@ -1,11 +1,12 @@
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module tinygo.org/x/bluetooth
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3-
go 1.18
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go 1.20
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require (
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github.com/go-ole/go-ole v1.2.6
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github.com/godbus/dbus/v5 v5.1.0
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github.com/saltosystems/winrt-go v0.0.0-20240509164145-4f7860a3bd2b
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github.com/soypat/cyw43439 v0.0.0-20240521202811-13f2f2d46d64
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github.com/tinygo-org/cbgo v0.0.4
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golang.org/x/crypto v0.12.0
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tinygo.org/x/drivers v0.26.1-0.20230922160320-ed51435c2ef6
@@ -16,6 +17,9 @@ require (
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require (
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github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510 // indirect
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github.com/sirupsen/logrus v1.9.3 // indirect
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github.com/soypat/seqs v0.0.0-20240509190925-a6350cee83a7 // indirect
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github.com/tinygo-org/pio v0.0.0-20231216154340-cd888eb58899 // indirect
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golang.org/x/exp v0.0.0-20230728194245-b0cb94b80691 // indirect
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golang.org/x/sys v0.11.0 // indirect
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golang.org/x/term v0.11.0 // indirect
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)

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