usb/dwc3/dwc3.c

40 void dwc3_print_status(dwc3_t* dwc) {
41     volatile void* mmio = dwc3_mmio(dwc);
71 static void dwc3_stop(dwc3_t* dwc) {
72     volatile void* mmio = dwc3_mmio(dwc);
75     mtx_lock(&dwc->lock);
83     mtx_unlock(&dwc->lock);
86 static void dwc3_start_peripheral_mode(dwc3_t* dwc) {
87     volatile void* mmio = dwc3_mmio(dwc);
90     mtx_lock(&dwc->lock);
117     dwc3_events_start(dwc);
118     mtx_unlock(&dwc->lock);
120     dwc3_ep0_start(dwc);
122     mtx_lock(&dwc->lock);
127     mtx_unlock(&dwc->lock);
131     dwc3_t* dwc = ctx;
134     return device_get_protocol(dwc->parent, proto_id, protocol);
138     dwc3_t* dwc = ctx;
139     mtx_lock(&dwc->usb_mode_lock);
140     if (dwc->start_device_on_xhci_release) {
141         dwc3_start_peripheral_mode(dwc);
142         dwc->start_device_on_xhci_release = false;
143         dwc->usb_mode = USB_MODE_PERIPHERAL;
145     mtx_unlock(&dwc->usb_mode_lock);
154 static void dwc3_start_host_mode(dwc3_t* dwc) {
155     volatile void* mmio = dwc3_mmio(dwc);
157     mtx_lock(&dwc->lock);
162     mtx_unlock(&dwc->lock);
165     ZX_DEBUG_ASSERT(dwc->xhci_dev == NULL);
177         .ctx = dwc,
183     zx_status_t status = device_add(dwc->parent, &args, &dwc->xhci_dev);
189 void dwc3_usb_reset(dwc3_t* dwc) {
192     dwc3_ep0_reset(dwc);
194     for (unsigned i = 2; i < countof(dwc->eps); i++) {
195         dwc3_ep_end_transfers(dwc, i, ZX_ERR_IO_NOT_PRESENT);
196         dwc3_ep_set_stall(dwc, i, false);
199     dwc3_set_address(dwc, 0);
200     dwc3_ep0_start(dwc);
201     usb_dci_set_connected(&dwc->dci_intf, true);
204 void dwc3_disconnected(dwc3_t* dwc) {
207     dwc3_cmd_ep_end_transfer(dwc, EP0_OUT);
208     dwc->ep0_state = EP0_STATE_NONE;
210     if (dwc->dci_intf.ops) {
211         usb_dci_set_connected(&dwc->dci_intf, false);
214     for (unsigned i = 2; i < countof(dwc->eps); i++) {
215         dwc3_ep_end_transfers(dwc, i, ZX_ERR_IO_NOT_PRESENT);
216         dwc3_ep_set_stall(dwc, i, false);
220 void dwc3_connection_done(dwc3_t* dwc) {
221     volatile void* mmio = dwc3_mmio(dwc);
223     mtx_lock(&dwc->lock);
230         dwc->speed = USB_SPEED_HIGH;
234         dwc->speed = USB_SPEED_FULL;
239         dwc->speed = USB_SPEED_SUPER;
244         dwc->speed = USB_SPEED_UNDEFINED;
248     mtx_unlock(&dwc->lock);
251         dwc->eps[EP0_OUT].max_packet_size = ep0_max_packet;
252         dwc->eps[EP0_IN].max_packet_size = ep0_max_packet;
253         dwc3_cmd_ep_set_config(dwc, EP0_OUT, USB_ENDPOINT_CONTROL, ep0_max_packet, 0, true);
254         dwc3_cmd_ep_set_config(dwc, EP0_IN, USB_ENDPOINT_CONTROL, ep0_max_packet, 0, true);
257     usb_dci_set_speed(&dwc->dci_intf, dwc->speed);
260 void dwc3_set_address(dwc3_t* dwc, unsigned address) {
261     volatile void* mmio = dwc3_mmio(dwc);
262     mtx_lock(&dwc->lock);
264     mtx_unlock(&dwc->lock);
267 void dwc3_reset_configuration(dwc3_t* dwc) {
268     volatile void* mmio = dwc3_mmio(dwc);
270     mtx_lock(&dwc->lock);
275     mtx_unlock(&dwc->lock);
277     for (unsigned i = 2; i < countof(dwc->eps); i++) {
278         dwc3_ep_end_transfers(dwc, i, ZX_ERR_IO_NOT_PRESENT);
279         dwc3_ep_set_stall(dwc, i, false);
284     dwc3_t* dwc = ctx;
288     if (ep_num < 2 || ep_num >= countof(dwc->eps)) {
294     dwc3_ep_queue(dwc, ep_num, req);
298     dwc3_t* dwc = ctx;
299     memcpy(&dwc->dci_intf, dci_intf, sizeof(dwc->dci_intf));
305     dwc3_t* dwc = ctx;
306     return dwc3_ep_config(dwc, ep_desc, ss_comp_desc);
310     dwc3_t* dwc = ctx;
311     return dwc3_ep_disable(dwc, ep_addr);
315     dwc3_t* dwc = ctx;
316     return dwc3_ep_set_stall(dwc, dwc3_ep_num(ep_address), true);
320     dwc3_t* dwc = ctx;
321     return dwc3_ep_set_stall(dwc, dwc3_ep_num(ep_address), false);
325     dwc3_t* dwc = ctx;
326     *out_handle = dwc->bti_handle;
341     dwc3_t* dwc = ctx;
348     mtx_lock(&dwc->usb_mode_lock);
349     if (dwc->usb_mode == mode) {
350         mtx_unlock(&dwc->usb_mode_lock);
355     if (dwc->usb_mode == USB_MODE_PERIPHERAL) {
356         dwc3_events_stop(dwc);
357         zx_handle_close(dwc->irq_handle);
358         dwc->irq_handle = ZX_HANDLE_INVALID;
359         dwc3_disconnected(dwc);
360         dwc3_stop(dwc);
361     } else if (dwc->usb_mode == USB_MODE_HOST) {
362         if (dwc->xhci_dev) {
363             device_remove(dwc->xhci_dev);
364             dwc->xhci_dev = NULL;
367                 dwc->start_device_on_xhci_release = true;
368                 mtx_unlock(&dwc->usb_mode_lock);
374     dwc->start_device_on_xhci_release = false;
375     if (dwc->ums.ops != NULL) {
376         status = usb_mode_switch_set_mode(&dwc->ums, mode);
383         status = pdev_map_interrupt(&dwc->pdev, IRQ_USB3, &dwc->irq_handle);
389         dwc3_start_peripheral_mode(dwc);
391         dwc3_start_host_mode(dwc);
394     dwc->usb_mode = mode;
395     mtx_unlock(&dwc->usb_mode_lock);
399     if (dwc->ums.ops != NULL) {
400         usb_mode_switch_set_mode(&dwc->ums, USB_MODE_NONE);
402     dwc->usb_mode = USB_MODE_NONE;
403     mtx_unlock(&dwc->usb_mode_lock);
413     dwc3_t* dwc = ctx;
414     zx_interrupt_destroy(dwc->irq_handle);
415     thrd_join(dwc->irq_thread, NULL);
416     device_remove(dwc->zxdev);
439     dwc3_t* dwc = ctx;
441     for (unsigned i = 0; i < countof(dwc->eps); i++) {
442         dwc3_ep_fifo_release(dwc, i);
444     io_buffer_release(&dwc->event_buffer);
445     io_buffer_release(&dwc->ep0_buffer);
446     mmio_buffer_release(&dwc->mmio);
447     zx_handle_close(dwc->irq_handle);
448     zx_handle_close(dwc->bti_handle);
449     free(dwc);
461     dwc3_t* dwc = calloc(1, sizeof(dwc3_t));
462     if (!dwc) {
466     zx_status_t status = device_get_protocol(parent, ZX_PROTOCOL_PLATFORM_DEV, &dwc->pdev);
472     status = device_get_protocol(parent, ZX_PROTOCOL_USB_MODE_SWITCH, &dwc->ums);
474         dwc->ums.ops = NULL;;
477     mtx_init(&dwc->lock, mtx_plain);
478     mtx_init(&dwc->usb_mode_lock, mtx_plain);
480     status = pdev_get_bti(&dwc->pdev, 0, &dwc->bti_handle);
485     for (unsigned i = 0; i < countof(dwc->eps); i++) {
486         dwc3_endpoint_t* ep = &dwc->eps[i];
491     dwc->parent = parent;
492     dwc->usb_mode = USB_MODE_NONE;
494     status = pdev_map_mmio_buffer2(&dwc->pdev, MMIO_USB3OTG, ZX_CACHE_POLICY_UNCACHED_DEVICE,
495                                    &dwc->mmio);
501     status = io_buffer_init(&dwc->event_buffer, dwc->bti_handle, EVENT_BUFFER_SIZE,
507     io_buffer_cache_flush(&dwc->event_buffer, 0, EVENT_BUFFER_SIZE);
509     status = io_buffer_init(&dwc->ep0_buffer,  dwc->bti_handle, 65536,
516     status = dwc3_ep0_init(dwc);
525         .ctx = dwc,
531     status = device_add(parent, &args, &dwc->zxdev);
540     dwc3_release(dwc);