1fe4406f37
b9e0ea0 Merge commit '7fa9d8bdea3773d1195b04d98fcf27cf48ddd81d' as 'tool/mbed/mbed-sdk' 7fa9d8b Squashed 'tool/mbed/mbed-sdk/' content from commit 7c21ce5 git-subtree-dir: tmk_core git-subtree-split: b9e0ea08cb940de20b3610ecdda18e9d8cd7c552
1161 lines
39 KiB
C++
1161 lines
39 KiB
C++
/* mbed USBHost Library
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* Copyright (c) 2006-2013 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "USBHost.h"
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#include "USBHostHub.h"
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USBHost * USBHost::instHost = NULL;
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#define DEVICE_CONNECTED_EVENT (1 << 0)
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#define DEVICE_DISCONNECTED_EVENT (1 << 1)
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#define TD_PROCESSED_EVENT (1 << 2)
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#define MAX_TRY_ENUMERATE_HUB 3
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#define MIN(a, b) ((a > b) ? b : a)
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/**
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* How interrupts are processed:
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* - new device connected:
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* - a message is queued in queue_usb_event with the id DEVICE_CONNECTED_EVENT
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* - when the usb_thread receives the event, it:
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* - resets the device
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* - reads the device descriptor
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* - sets the address of the device
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* - if it is a hub, enumerates it
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* - device disconnected:
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* - a message is queued in queue_usb_event with the id DEVICE_DISCONNECTED_EVENT
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* - when the usb_thread receives the event, it:
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* - free the device and all its children (hub)
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* - td processed
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* - a message is queued in queue_usb_event with the id TD_PROCESSED_EVENT
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* - when the usb_thread receives the event, it:
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* - call the callback attached to the endpoint where the td is attached
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*/
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void USBHost::usb_process() {
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bool controlListState;
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bool bulkListState;
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bool interruptListState;
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USBEndpoint * ep;
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uint8_t i, j, res, timeout_set_addr = 10;
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uint8_t buf[8];
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bool too_many_hub;
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int idx;
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#if DEBUG_TRANSFER
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uint8_t * buf_transfer;
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#endif
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#if MAX_HUB_NB
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uint8_t k;
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#endif
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while(1) {
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osEvent evt = mail_usb_event.get();
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if (evt.status == osEventMail) {
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message_t * usb_msg = (message_t*)evt.value.p;
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switch (usb_msg->event_id) {
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// a new device has been connected
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case DEVICE_CONNECTED_EVENT:
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too_many_hub = false;
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buf[4] = 0;
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do
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{
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Lock lock(this);
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for (i = 0; i < MAX_DEVICE_CONNECTED; i++) {
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if (!deviceInUse[i]) {
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USB_DBG_EVENT("new device connected: %p\r\n", &devices[i]);
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devices[i].init(usb_msg->hub, usb_msg->port, usb_msg->lowSpeed);
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deviceReset[i] = false;
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deviceInited[i] = true;
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break;
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}
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}
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if (i == MAX_DEVICE_CONNECTED) {
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USB_ERR("Too many device connected!!\r\n");
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continue;
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}
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if (!controlEndpointAllocated) {
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control = newEndpoint(CONTROL_ENDPOINT, OUT, 0x08, 0x00);
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addEndpoint(NULL, 0, (USBEndpoint*)control);
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controlEndpointAllocated = true;
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}
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#if MAX_HUB_NB
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if (usb_msg->hub_parent)
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devices[i].setHubParent((USBHostHub *)(usb_msg->hub_parent));
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#endif
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for (j = 0; j < timeout_set_addr; j++) {
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resetDevice(&devices[i]);
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// set size of control endpoint
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devices[i].setSizeControlEndpoint(8);
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devices[i].activeAddress(false);
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// get first 8 bit of device descriptor
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// and check if we deal with a hub
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USB_DBG("usb_thread read device descriptor on dev: %p\r\n", &devices[i]);
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res = getDeviceDescriptor(&devices[i], buf, 8);
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if (res != USB_TYPE_OK) {
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USB_ERR("usb_thread could not read dev descr");
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continue;
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}
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// set size of control endpoint
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devices[i].setSizeControlEndpoint(buf[7]);
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// second step: set an address to the device
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res = setAddress(&devices[i], devices[i].getAddress());
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if (res != USB_TYPE_OK) {
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USB_ERR("SET ADDR FAILED");
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continue;
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}
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devices[i].activeAddress(true);
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USB_DBG("Address of %p: %d", &devices[i], devices[i].getAddress());
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// try to read again the device descriptor to check if the device
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// answers to its new address
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res = getDeviceDescriptor(&devices[i], buf, 8);
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if (res == USB_TYPE_OK) {
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break;
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}
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Thread::wait(100);
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}
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USB_INFO("New device connected: %p [hub: %d - port: %d]", &devices[i], usb_msg->hub, usb_msg->port);
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#if MAX_HUB_NB
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if (buf[4] == HUB_CLASS) {
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for (k = 0; k < MAX_HUB_NB; k++) {
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if (hub_in_use[k] == false) {
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for (uint8_t j = 0; j < MAX_TRY_ENUMERATE_HUB; j++) {
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if (hubs[k].connect(&devices[i])) {
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devices[i].hub = &hubs[k];
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hub_in_use[k] = true;
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break;
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}
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}
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if (hub_in_use[k] == true)
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break;
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}
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}
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if (k == MAX_HUB_NB) {
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USB_ERR("Too many hubs connected!!\r\n");
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too_many_hub = true;
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}
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}
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if (usb_msg->hub_parent)
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((USBHostHub *)(usb_msg->hub_parent))->deviceConnected(&devices[i]);
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#endif
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if ((i < MAX_DEVICE_CONNECTED) && !too_many_hub) {
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deviceInUse[i] = true;
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}
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} while(0);
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break;
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// a device has been disconnected
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case DEVICE_DISCONNECTED_EVENT:
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do
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{
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Lock lock(this);
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controlListState = disableList(CONTROL_ENDPOINT);
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bulkListState = disableList(BULK_ENDPOINT);
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interruptListState = disableList(INTERRUPT_ENDPOINT);
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idx = findDevice(usb_msg->hub, usb_msg->port, (USBHostHub *)(usb_msg->hub_parent));
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if (idx != -1) {
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freeDevice((USBDeviceConnected*)&devices[idx]);
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}
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if (controlListState) enableList(CONTROL_ENDPOINT);
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if (bulkListState) enableList(BULK_ENDPOINT);
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if (interruptListState) enableList(INTERRUPT_ENDPOINT);
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} while(0);
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break;
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// a td has been processed
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// call callback on the ed associated to the td
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// we are not in ISR -> users can use printf in their callback method
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case TD_PROCESSED_EVENT:
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ep = (USBEndpoint *) ((HCTD *)usb_msg->td_addr)->ep;
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if (usb_msg->td_state == USB_TYPE_IDLE) {
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USB_DBG_EVENT("call callback on td %p [ep: %p state: %s - dev: %p - %s]", usb_msg->td_addr, ep, ep->getStateString(), ep->dev, ep->dev->getName(ep->getIntfNb()));
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#if DEBUG_TRANSFER
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if (ep->getDir() == IN) {
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buf_transfer = ep->getBufStart();
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printf("READ SUCCESS [%d bytes transferred - td: 0x%08X] on ep: [%p - addr: %02X]: ", ep->getLengthTransferred(), usb_msg->td_addr, ep, ep->getAddress());
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for (int i = 0; i < ep->getLengthTransferred(); i++)
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printf("%02X ", buf_transfer[i]);
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printf("\r\n\r\n");
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}
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#endif
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ep->call();
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} else {
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idx = findDevice(ep->dev);
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if (idx != -1) {
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if (deviceInUse[idx]) {
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USB_WARN("td %p processed but not in idle state: %s [ep: %p - dev: %p - %s]", usb_msg->td_addr, ep->getStateString(), ep, ep->dev, ep->dev->getName(ep->getIntfNb()));
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ep->setState(USB_TYPE_IDLE);
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}
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}
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}
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break;
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}
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mail_usb_event.free(usb_msg);
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}
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}
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}
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/* static */void USBHost::usb_process_static(void const * arg) {
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((USBHost *)arg)->usb_process();
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}
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USBHost::USBHost() : usbThread(USBHost::usb_process_static, (void *)this, osPriorityNormal, USB_THREAD_STACK)
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{
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headControlEndpoint = NULL;
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headBulkEndpoint = NULL;
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headInterruptEndpoint = NULL;
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tailControlEndpoint = NULL;
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tailBulkEndpoint = NULL;
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tailInterruptEndpoint = NULL;
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lenReportDescr = 0;
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controlEndpointAllocated = false;
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for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) {
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deviceInUse[i] = false;
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devices[i].setAddress(i + 1);
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deviceReset[i] = false;
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deviceInited[i] = false;
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for (uint8_t j = 0; j < MAX_INTF; j++)
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deviceAttachedDriver[i][j] = false;
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}
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#if MAX_HUB_NB
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for (uint8_t i = 0; i < MAX_HUB_NB; i++) {
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hubs[i].setHost(this);
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hub_in_use[i] = false;
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}
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#endif
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}
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USBHost::Lock::Lock(USBHost* pHost) : m_pHost(pHost)
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{
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m_pHost->usb_mutex.lock();
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}
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USBHost::Lock::~Lock()
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{
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m_pHost->usb_mutex.unlock();
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}
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void USBHost::transferCompleted(volatile uint32_t addr)
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{
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uint8_t state;
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if(addr == 0)
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return;
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volatile HCTD* tdList = NULL;
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//First we must reverse the list order and dequeue each TD
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do {
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volatile HCTD* td = (volatile HCTD*)addr;
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addr = (uint32_t)td->nextTD; //Dequeue from physical list
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td->nextTD = tdList; //Enqueue into reversed list
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tdList = td;
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} while(addr);
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while(tdList != NULL) {
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volatile HCTD* td = tdList;
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tdList = (volatile HCTD*)td->nextTD; //Dequeue element now as it could be modified below
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if (td->ep != NULL) {
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USBEndpoint * ep = (USBEndpoint *)(td->ep);
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if (((HCTD *)td)->control >> 28) {
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state = ((HCTD *)td)->control >> 28;
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} else {
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if (td->currBufPtr)
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ep->setLengthTransferred((uint32_t)td->currBufPtr - (uint32_t)ep->getBufStart());
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state = 16 /*USB_TYPE_IDLE*/;
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}
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ep->unqueueTransfer(td);
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if (ep->getType() != CONTROL_ENDPOINT) {
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// callback on the processed td will be called from the usb_thread (not in ISR)
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message_t * usb_msg = mail_usb_event.alloc();
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usb_msg->event_id = TD_PROCESSED_EVENT;
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usb_msg->td_addr = (void *)td;
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usb_msg->td_state = state;
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mail_usb_event.put(usb_msg);
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}
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ep->setState(state);
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ep->ep_queue.put((uint8_t*)1);
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}
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}
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}
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USBHost * USBHost::getHostInst()
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{
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if (instHost == NULL) {
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instHost = new USBHost();
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instHost->init();
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}
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return instHost;
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}
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/*
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* Called when a device has been connected
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* Called in ISR!!!! (no printf)
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*/
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/* virtual */ void USBHost::deviceConnected(int hub, int port, bool lowSpeed, USBHostHub * hub_parent)
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{
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// be sure that the new device connected is not already connected...
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int idx = findDevice(hub, port, hub_parent);
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if (idx != -1) {
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if (deviceInited[idx])
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return;
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}
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message_t * usb_msg = mail_usb_event.alloc();
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usb_msg->event_id = DEVICE_CONNECTED_EVENT;
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usb_msg->hub = hub;
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usb_msg->port = port;
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usb_msg->lowSpeed = lowSpeed;
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usb_msg->hub_parent = hub_parent;
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mail_usb_event.put(usb_msg);
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}
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/*
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* Called when a device has been disconnected
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* Called in ISR!!!! (no printf)
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*/
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/* virtual */ void USBHost::deviceDisconnected(int hub, int port, USBHostHub * hub_parent, volatile uint32_t addr)
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{
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// be sure that the device disconnected is connected...
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int idx = findDevice(hub, port, hub_parent);
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if (idx != -1) {
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if (!deviceInUse[idx])
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return;
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} else {
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return;
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}
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message_t * usb_msg = mail_usb_event.alloc();
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usb_msg->event_id = DEVICE_DISCONNECTED_EVENT;
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usb_msg->hub = hub;
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usb_msg->port = port;
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usb_msg->hub_parent = hub_parent;
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mail_usb_event.put(usb_msg);
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}
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void USBHost::freeDevice(USBDeviceConnected * dev)
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{
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USBEndpoint * ep = NULL;
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HCED * ed = NULL;
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#if MAX_HUB_NB
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if (dev->getClass() == HUB_CLASS) {
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if (dev->hub == NULL) {
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USB_ERR("HUB NULL!!!!!\r\n");
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} else {
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dev->hub->hubDisconnected();
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for (uint8_t i = 0; i < MAX_HUB_NB; i++) {
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if (dev->hub == &hubs[i]) {
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hub_in_use[i] = false;
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break;
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}
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}
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}
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}
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// notify hub parent that this device has been disconnected
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if (dev->getHubParent())
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dev->getHubParent()->deviceDisconnected(dev);
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#endif
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int idx = findDevice(dev);
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if (idx != -1) {
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deviceInUse[idx] = false;
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deviceReset[idx] = false;
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for (uint8_t j = 0; j < MAX_INTF; j++) {
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deviceAttachedDriver[idx][j] = false;
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if (dev->getInterface(j) != NULL) {
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USB_DBG("FREE INTF %d on dev: %p, %p, nb_endpot: %d, %s", j, (void *)dev->getInterface(j), dev, dev->getInterface(j)->nb_endpoint, dev->getName(j));
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for (int i = 0; i < dev->getInterface(j)->nb_endpoint; i++) {
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if ((ep = dev->getEndpoint(j, i)) != NULL) {
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ed = (HCED *)ep->getHCED();
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ed->control |= (1 << 14); //sKip bit
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unqueueEndpoint(ep);
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freeTD((volatile uint8_t*)ep->getTDList()[0]);
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freeTD((volatile uint8_t*)ep->getTDList()[1]);
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freeED((uint8_t *)ep->getHCED());
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}
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printList(BULK_ENDPOINT);
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printList(INTERRUPT_ENDPOINT);
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}
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USB_INFO("Device disconnected [%p - %s - hub: %d - port: %d]", dev, dev->getName(j), dev->getHub(), dev->getPort());
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}
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}
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dev->disconnect();
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}
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}
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void USBHost::unqueueEndpoint(USBEndpoint * ep)
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{
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USBEndpoint * prec = NULL;
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USBEndpoint * current = NULL;
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for (int i = 0; i < 2; i++) {
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current = (i == 0) ? (USBEndpoint*)headBulkEndpoint : (USBEndpoint*)headInterruptEndpoint;
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prec = current;
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while (current != NULL) {
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if (current == ep) {
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if (current->nextEndpoint() != NULL) {
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prec->queueEndpoint(current->nextEndpoint());
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if (current == headBulkEndpoint) {
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updateBulkHeadED((uint32_t)current->nextEndpoint()->getHCED());
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headBulkEndpoint = current->nextEndpoint();
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} else if (current == headInterruptEndpoint) {
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updateInterruptHeadED((uint32_t)current->nextEndpoint()->getHCED());
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headInterruptEndpoint = current->nextEndpoint();
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}
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}
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// here we are dequeuing the queue of ed
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// we need to update the tail pointer
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else {
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prec->queueEndpoint(NULL);
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if (current == headBulkEndpoint) {
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updateBulkHeadED(0);
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headBulkEndpoint = current->nextEndpoint();
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} else if (current == headInterruptEndpoint) {
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updateInterruptHeadED(0);
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headInterruptEndpoint = current->nextEndpoint();
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}
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// modify tail
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switch (current->getType()) {
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case BULK_ENDPOINT:
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tailBulkEndpoint = prec;
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break;
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case INTERRUPT_ENDPOINT:
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tailInterruptEndpoint = prec;
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break;
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default:
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break;
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}
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}
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current->setState(USB_TYPE_FREE);
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return;
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}
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prec = current;
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current = current->nextEndpoint();
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}
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}
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}
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USBDeviceConnected * USBHost::getDevice(uint8_t index)
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{
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if ((index >= MAX_DEVICE_CONNECTED) || (!deviceInUse[index])) {
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return NULL;
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}
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return (USBDeviceConnected*)&devices[index];
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}
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// create an USBEndpoint descriptor. the USBEndpoint is not linked
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USBEndpoint * USBHost::newEndpoint(ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir, uint32_t size, uint8_t addr)
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{
|
|
int i = 0;
|
|
HCED * ed = (HCED *)getED();
|
|
HCTD* td_list[2] = { (HCTD*)getTD(), (HCTD*)getTD() };
|
|
|
|
memset((void *)td_list[0], 0x00, sizeof(HCTD));
|
|
memset((void *)td_list[1], 0x00, sizeof(HCTD));
|
|
|
|
// search a free USBEndpoint
|
|
for (i = 0; i < MAX_ENDPOINT; i++) {
|
|
if (endpoints[i].getState() == USB_TYPE_FREE) {
|
|
endpoints[i].init(ed, type, dir, size, addr, td_list);
|
|
USB_DBG("USBEndpoint created (%p): type: %d, dir: %d, size: %d, addr: %d, state: %s", &endpoints[i], type, dir, size, addr, endpoints[i].getStateString());
|
|
return &endpoints[i];
|
|
}
|
|
}
|
|
USB_ERR("could not allocate more endpoints!!!!");
|
|
return NULL;
|
|
}
|
|
|
|
|
|
USB_TYPE USBHost::resetDevice(USBDeviceConnected * dev)
|
|
{
|
|
int index = findDevice(dev);
|
|
if (index != -1) {
|
|
USB_DBG("Resetting hub %d, port %d\n", dev->getHub(), dev->getPort());
|
|
Thread::wait(100);
|
|
if (dev->getHub() == 0) {
|
|
resetRootHub();
|
|
}
|
|
#if MAX_HUB_NB
|
|
else {
|
|
dev->getHubParent()->portReset(dev->getPort());
|
|
}
|
|
#endif
|
|
Thread::wait(100);
|
|
deviceReset[index] = true;
|
|
return USB_TYPE_OK;
|
|
}
|
|
|
|
return USB_TYPE_ERROR;
|
|
}
|
|
|
|
// link the USBEndpoint to the linked list and attach an USBEndpoint to a device
|
|
bool USBHost::addEndpoint(USBDeviceConnected * dev, uint8_t intf_nb, USBEndpoint * ep)
|
|
{
|
|
|
|
if (ep == NULL) {
|
|
return false;
|
|
}
|
|
|
|
HCED * prevEd;
|
|
|
|
// set device address in the USBEndpoint descriptor
|
|
if (dev == NULL) {
|
|
ep->setDeviceAddress(0);
|
|
} else {
|
|
ep->setDeviceAddress(dev->getAddress());
|
|
}
|
|
|
|
if ((dev != NULL) && dev->getSpeed()) {
|
|
ep->setSpeed(dev->getSpeed());
|
|
}
|
|
|
|
ep->setIntfNb(intf_nb);
|
|
|
|
// queue the new USBEndpoint on the ED list
|
|
switch (ep->getType()) {
|
|
|
|
case CONTROL_ENDPOINT:
|
|
prevEd = ( HCED*) controlHeadED();
|
|
if (!prevEd) {
|
|
updateControlHeadED((uint32_t) ep->getHCED());
|
|
USB_DBG_TRANSFER("First control USBEndpoint: %08X", (uint32_t) ep->getHCED());
|
|
headControlEndpoint = ep;
|
|
tailControlEndpoint = ep;
|
|
return true;
|
|
}
|
|
tailControlEndpoint->queueEndpoint(ep);
|
|
tailControlEndpoint = ep;
|
|
return true;
|
|
|
|
case BULK_ENDPOINT:
|
|
prevEd = ( HCED*) bulkHeadED();
|
|
if (!prevEd) {
|
|
updateBulkHeadED((uint32_t) ep->getHCED());
|
|
USB_DBG_TRANSFER("First bulk USBEndpoint: %08X\r\n", (uint32_t) ep->getHCED());
|
|
headBulkEndpoint = ep;
|
|
tailBulkEndpoint = ep;
|
|
break;
|
|
}
|
|
USB_DBG_TRANSFER("Queue BULK Ed %p after %p\r\n",ep->getHCED(), prevEd);
|
|
tailBulkEndpoint->queueEndpoint(ep);
|
|
tailBulkEndpoint = ep;
|
|
break;
|
|
|
|
case INTERRUPT_ENDPOINT:
|
|
prevEd = ( HCED*) interruptHeadED();
|
|
if (!prevEd) {
|
|
updateInterruptHeadED((uint32_t) ep->getHCED());
|
|
USB_DBG_TRANSFER("First interrupt USBEndpoint: %08X\r\n", (uint32_t) ep->getHCED());
|
|
headInterruptEndpoint = ep;
|
|
tailInterruptEndpoint = ep;
|
|
break;
|
|
}
|
|
USB_DBG_TRANSFER("Queue INTERRUPT Ed %p after %p\r\n",ep->getHCED(), prevEd);
|
|
tailInterruptEndpoint->queueEndpoint(ep);
|
|
tailInterruptEndpoint = ep;
|
|
break;
|
|
default:
|
|
return false;
|
|
}
|
|
|
|
ep->dev = dev;
|
|
dev->addEndpoint(intf_nb, ep);
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
int USBHost::findDevice(USBDeviceConnected * dev)
|
|
{
|
|
for (int i = 0; i < MAX_DEVICE_CONNECTED; i++) {
|
|
if (dev == &devices[i]) {
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int USBHost::findDevice(uint8_t hub, uint8_t port, USBHostHub * hub_parent)
|
|
{
|
|
for (int i = 0; i < MAX_DEVICE_CONNECTED; i++) {
|
|
if (devices[i].getHub() == hub && devices[i].getPort() == port) {
|
|
if (hub_parent != NULL) {
|
|
if (hub_parent == devices[i].getHubParent())
|
|
return i;
|
|
} else {
|
|
return i;
|
|
}
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
void USBHost::printList(ENDPOINT_TYPE type)
|
|
{
|
|
#if DEBUG_EP_STATE
|
|
volatile HCED * hced;
|
|
switch(type) {
|
|
case CONTROL_ENDPOINT:
|
|
hced = (HCED *)controlHeadED();
|
|
break;
|
|
case BULK_ENDPOINT:
|
|
hced = (HCED *)bulkHeadED();
|
|
break;
|
|
case INTERRUPT_ENDPOINT:
|
|
hced = (HCED *)interruptHeadED();
|
|
break;
|
|
}
|
|
volatile HCTD * hctd = NULL;
|
|
const char * type_str = (type == BULK_ENDPOINT) ? "BULK" :
|
|
((type == INTERRUPT_ENDPOINT) ? "INTERRUPT" :
|
|
((type == CONTROL_ENDPOINT) ? "CONTROL" : "ISOCHRONOUS"));
|
|
printf("State of %s:\r\n", type_str);
|
|
while (hced != NULL) {
|
|
uint8_t dir = ((hced->control & (3 << 11)) >> 11);
|
|
printf("hced: %p [ADDR: %d, DIR: %s, EP_NB: 0x%X]\r\n", hced,
|
|
hced->control & 0x7f,
|
|
(dir == 1) ? "OUT" : ((dir == 0) ? "FROM_TD":"IN"),
|
|
(hced->control & (0xf << 7)) >> 7);
|
|
hctd = (HCTD *)((uint32_t)(hced->headTD) & ~(0xf));
|
|
while (hctd != hced->tailTD) {
|
|
printf("\thctd: %p [DIR: %s]\r\n", hctd, ((hctd->control & (3 << 19)) >> 19) == 1 ? "OUT" : "IN");
|
|
hctd = hctd->nextTD;
|
|
}
|
|
printf("\thctd: %p\r\n", hctd);
|
|
hced = hced->nextED;
|
|
}
|
|
printf("\r\n\r\n");
|
|
#endif
|
|
}
|
|
|
|
|
|
// add a transfer on the TD linked list
|
|
USB_TYPE USBHost::addTransfer(USBEndpoint * ed, uint8_t * buf, uint32_t len)
|
|
{
|
|
td_mutex.lock();
|
|
|
|
// allocate a TD which will be freed in TDcompletion
|
|
volatile HCTD * td = ed->getNextTD();
|
|
if (td == NULL) {
|
|
return USB_TYPE_ERROR;
|
|
}
|
|
|
|
uint32_t token = (ed->isSetup() ? TD_SETUP : ( (ed->getDir() == IN) ? TD_IN : TD_OUT ));
|
|
|
|
uint32_t td_toggle;
|
|
|
|
if (ed->getType() == CONTROL_ENDPOINT) {
|
|
if (ed->isSetup()) {
|
|
td_toggle = TD_TOGGLE_0;
|
|
} else {
|
|
td_toggle = TD_TOGGLE_1;
|
|
}
|
|
} else {
|
|
td_toggle = 0;
|
|
}
|
|
|
|
td->control = (TD_ROUNDING | token | TD_DELAY_INT(0) | td_toggle | TD_CC);
|
|
td->currBufPtr = buf;
|
|
td->bufEnd = (buf + (len - 1));
|
|
|
|
ENDPOINT_TYPE type = ed->getType();
|
|
|
|
disableList(type);
|
|
ed->queueTransfer();
|
|
printList(type);
|
|
enableList(type);
|
|
|
|
td_mutex.unlock();
|
|
|
|
return USB_TYPE_PROCESSING;
|
|
}
|
|
|
|
|
|
|
|
USB_TYPE USBHost::getDeviceDescriptor(USBDeviceConnected * dev, uint8_t * buf, uint16_t max_len_buf, uint16_t * len_dev_descr)
|
|
{
|
|
USB_TYPE t = controlRead( dev,
|
|
USB_DEVICE_TO_HOST | USB_RECIPIENT_DEVICE,
|
|
GET_DESCRIPTOR,
|
|
(DEVICE_DESCRIPTOR << 8) | (0),
|
|
0, buf, MIN(DEVICE_DESCRIPTOR_LENGTH, max_len_buf));
|
|
if (len_dev_descr)
|
|
*len_dev_descr = MIN(DEVICE_DESCRIPTOR_LENGTH, max_len_buf);
|
|
|
|
return t;
|
|
}
|
|
|
|
USB_TYPE USBHost::getConfigurationDescriptor(USBDeviceConnected * dev, uint8_t * buf, uint16_t max_len_buf, uint16_t * len_conf_descr)
|
|
{
|
|
USB_TYPE res;
|
|
uint16_t total_conf_descr_length = 0;
|
|
|
|
// fourth step: get the beginning of the configuration descriptor to have the total length of the conf descr
|
|
res = controlRead( dev,
|
|
USB_DEVICE_TO_HOST | USB_RECIPIENT_DEVICE,
|
|
GET_DESCRIPTOR,
|
|
(CONFIGURATION_DESCRIPTOR << 8) | (0),
|
|
0, buf, CONFIGURATION_DESCRIPTOR_LENGTH);
|
|
|
|
if (res != USB_TYPE_OK) {
|
|
USB_ERR("GET CONF 1 DESCR FAILED");
|
|
return res;
|
|
}
|
|
total_conf_descr_length = buf[2] | (buf[3] << 8);
|
|
total_conf_descr_length = MIN(max_len_buf, total_conf_descr_length);
|
|
|
|
if (len_conf_descr)
|
|
*len_conf_descr = total_conf_descr_length;
|
|
|
|
USB_DBG("TOTAL_LENGTH: %d \t NUM_INTERF: %d", total_conf_descr_length, buf[4]);
|
|
|
|
return controlRead( dev,
|
|
USB_DEVICE_TO_HOST | USB_RECIPIENT_DEVICE,
|
|
GET_DESCRIPTOR,
|
|
(CONFIGURATION_DESCRIPTOR << 8) | (0),
|
|
0, buf, total_conf_descr_length);
|
|
}
|
|
|
|
|
|
USB_TYPE USBHost::setAddress(USBDeviceConnected * dev, uint8_t address) {
|
|
return controlWrite( dev,
|
|
USB_HOST_TO_DEVICE | USB_RECIPIENT_DEVICE,
|
|
SET_ADDRESS,
|
|
address,
|
|
0, NULL, 0);
|
|
|
|
}
|
|
|
|
USB_TYPE USBHost::setConfiguration(USBDeviceConnected * dev, uint8_t conf)
|
|
{
|
|
return controlWrite( dev,
|
|
USB_HOST_TO_DEVICE | USB_RECIPIENT_DEVICE,
|
|
SET_CONFIGURATION,
|
|
conf,
|
|
0, NULL, 0);
|
|
}
|
|
|
|
uint8_t USBHost::numberDriverAttached(USBDeviceConnected * dev) {
|
|
int index = findDevice(dev);
|
|
uint8_t cnt = 0;
|
|
if (index == -1)
|
|
return 0;
|
|
for (uint8_t i = 0; i < MAX_INTF; i++) {
|
|
if (deviceAttachedDriver[index][i])
|
|
cnt++;
|
|
}
|
|
return cnt;
|
|
}
|
|
|
|
// enumerate a device with the control USBEndpoint
|
|
USB_TYPE USBHost::enumerate(USBDeviceConnected * dev, IUSBEnumerator* pEnumerator)
|
|
{
|
|
uint16_t total_conf_descr_length = 0;
|
|
USB_TYPE res;
|
|
|
|
do
|
|
{
|
|
Lock lock(this);
|
|
|
|
// don't enumerate a device which all interfaces are registered to a specific driver
|
|
int index = findDevice(dev);
|
|
|
|
if (index == -1) {
|
|
return USB_TYPE_ERROR;
|
|
}
|
|
|
|
uint8_t nb_intf_attached = numberDriverAttached(dev);
|
|
USB_DBG("dev: %p nb_intf: %d", dev, dev->getNbIntf());
|
|
USB_DBG("dev: %p nb_intf_attached: %d", dev, nb_intf_attached);
|
|
if ((nb_intf_attached != 0) && (dev->getNbIntf() == nb_intf_attached)) {
|
|
USB_DBG("Don't enumerate dev: %p because all intf are registered with a driver", dev);
|
|
return USB_TYPE_OK;
|
|
}
|
|
|
|
USB_DBG("Enumerate dev: %p", dev);
|
|
|
|
// third step: get the whole device descriptor to see vid, pid
|
|
res = getDeviceDescriptor(dev, data, DEVICE_DESCRIPTOR_LENGTH);
|
|
|
|
if (res != USB_TYPE_OK) {
|
|
USB_DBG("GET DEV DESCR FAILED");
|
|
return res;
|
|
}
|
|
|
|
dev->setClass(data[4]);
|
|
dev->setSubClass(data[5]);
|
|
dev->setProtocol(data[6]);
|
|
dev->setVid(data[8] | (data[9] << 8));
|
|
dev->setPid(data[10] | (data[11] << 8));
|
|
USB_DBG("CLASS: %02X \t VID: %04X \t PID: %04X", data[4], data[8] | (data[9] << 8), data[10] | (data[11] << 8));
|
|
|
|
pEnumerator->setVidPid( data[8] | (data[9] << 8), data[10] | (data[11] << 8) );
|
|
|
|
res = getConfigurationDescriptor(dev, data, sizeof(data), &total_conf_descr_length);
|
|
if (res != USB_TYPE_OK) {
|
|
return res;
|
|
}
|
|
|
|
#if (DEBUG > 3)
|
|
USB_DBG("CONFIGURATION DESCRIPTOR:\r\n");
|
|
for (int i = 0; i < total_conf_descr_length; i++)
|
|
printf("%02X ", data[i]);
|
|
printf("\r\n\r\n");
|
|
#endif
|
|
|
|
// Parse the configuration descriptor
|
|
parseConfDescr(dev, data, total_conf_descr_length, pEnumerator);
|
|
|
|
// only set configuration if not enumerated before
|
|
if (!dev->isEnumerated()) {
|
|
|
|
USB_DBG("Set configuration 1 on dev: %p", dev);
|
|
// sixth step: set configuration (only 1 supported)
|
|
res = setConfiguration(dev, 1);
|
|
|
|
if (res != USB_TYPE_OK) {
|
|
USB_DBG("SET CONF FAILED");
|
|
return res;
|
|
}
|
|
}
|
|
|
|
dev->setEnumerated();
|
|
|
|
// Now the device is enumerated!
|
|
USB_DBG("dev %p is enumerated\r\n", dev);
|
|
|
|
} while(0);
|
|
|
|
// Some devices may require this delay
|
|
Thread::wait(100);
|
|
|
|
return USB_TYPE_OK;
|
|
}
|
|
// this method fills the USBDeviceConnected object: class,.... . It also add endpoints found in the descriptor.
|
|
void USBHost::parseConfDescr(USBDeviceConnected * dev, uint8_t * conf_descr, uint32_t len, IUSBEnumerator* pEnumerator)
|
|
{
|
|
uint32_t index = 0;
|
|
uint32_t len_desc = 0;
|
|
uint8_t id = 0;
|
|
int nb_endpoints_used = 0;
|
|
USBEndpoint * ep = NULL;
|
|
uint8_t intf_nb = 0;
|
|
bool parsing_intf = false;
|
|
uint8_t current_intf = 0;
|
|
|
|
while (index < len) {
|
|
len_desc = conf_descr[index];
|
|
id = conf_descr[index+1];
|
|
switch (id) {
|
|
case CONFIGURATION_DESCRIPTOR:
|
|
USB_DBG("dev: %p has %d intf", dev, conf_descr[4]);
|
|
dev->setNbIntf(conf_descr[4]);
|
|
break;
|
|
case INTERFACE_DESCRIPTOR:
|
|
if(pEnumerator->parseInterface(conf_descr[index + 2], conf_descr[index + 5], conf_descr[index + 6], conf_descr[index + 7])) {
|
|
if (intf_nb++ <= MAX_INTF) {
|
|
current_intf = conf_descr[index + 2];
|
|
dev->addInterface(current_intf, conf_descr[index + 5], conf_descr[index + 6], conf_descr[index + 7]);
|
|
nb_endpoints_used = 0;
|
|
USB_DBG("ADD INTF %d on device %p: class: %d, subclass: %d, proto: %d", current_intf, dev, conf_descr[index + 5],conf_descr[index + 6],conf_descr[index + 7]);
|
|
} else {
|
|
USB_DBG("Drop intf...");
|
|
}
|
|
parsing_intf = true;
|
|
} else {
|
|
parsing_intf = false;
|
|
}
|
|
break;
|
|
case ENDPOINT_DESCRIPTOR:
|
|
if (parsing_intf && (intf_nb <= MAX_INTF) ) {
|
|
if (nb_endpoints_used < MAX_ENDPOINT_PER_INTERFACE) {
|
|
if( pEnumerator->useEndpoint(current_intf, (ENDPOINT_TYPE)(conf_descr[index + 3] & 0x03), (ENDPOINT_DIRECTION)((conf_descr[index + 2] >> 7) + 1)) ) {
|
|
// if the USBEndpoint is isochronous -> skip it (TODO: fix this)
|
|
if ((conf_descr[index + 3] & 0x03) != ISOCHRONOUS_ENDPOINT) {
|
|
ep = newEndpoint((ENDPOINT_TYPE)(conf_descr[index+3] & 0x03),
|
|
(ENDPOINT_DIRECTION)((conf_descr[index + 2] >> 7) + 1),
|
|
conf_descr[index + 4] | (conf_descr[index + 5] << 8),
|
|
conf_descr[index + 2] & 0x0f);
|
|
USB_DBG("ADD USBEndpoint %p, on interf %d on device %p", ep, current_intf, dev);
|
|
if (ep != NULL && dev != NULL) {
|
|
addEndpoint(dev, current_intf, ep);
|
|
} else {
|
|
USB_DBG("EP NULL");
|
|
}
|
|
nb_endpoints_used++;
|
|
} else {
|
|
USB_DBG("ISO USBEndpoint NOT SUPPORTED");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case HID_DESCRIPTOR:
|
|
lenReportDescr = conf_descr[index + 7] | (conf_descr[index + 8] << 8);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
index += len_desc;
|
|
}
|
|
}
|
|
|
|
|
|
USB_TYPE USBHost::bulkWrite(USBDeviceConnected * dev, USBEndpoint * ep, uint8_t * buf, uint32_t len, bool blocking)
|
|
{
|
|
return generalTransfer(dev, ep, buf, len, blocking, BULK_ENDPOINT, true);
|
|
}
|
|
|
|
USB_TYPE USBHost::bulkRead(USBDeviceConnected * dev, USBEndpoint * ep, uint8_t * buf, uint32_t len, bool blocking)
|
|
{
|
|
return generalTransfer(dev, ep, buf, len, blocking, BULK_ENDPOINT, false);
|
|
}
|
|
|
|
USB_TYPE USBHost::interruptWrite(USBDeviceConnected * dev, USBEndpoint * ep, uint8_t * buf, uint32_t len, bool blocking)
|
|
{
|
|
return generalTransfer(dev, ep, buf, len, blocking, INTERRUPT_ENDPOINT, true);
|
|
}
|
|
|
|
USB_TYPE USBHost::interruptRead(USBDeviceConnected * dev, USBEndpoint * ep, uint8_t * buf, uint32_t len, bool blocking)
|
|
{
|
|
return generalTransfer(dev, ep, buf, len, blocking, INTERRUPT_ENDPOINT, false);
|
|
}
|
|
|
|
USB_TYPE USBHost::generalTransfer(USBDeviceConnected * dev, USBEndpoint * ep, uint8_t * buf, uint32_t len, bool blocking, ENDPOINT_TYPE type, bool write) {
|
|
|
|
#if DEBUG_TRANSFER
|
|
const char * type_str = (type == BULK_ENDPOINT) ? "BULK" : ((type == INTERRUPT_ENDPOINT) ? "INTERRUPT" : "ISOCHRONOUS");
|
|
USB_DBG_TRANSFER("----- %s %s [dev: %p - %s - hub: %d - port: %d - addr: %d - ep: %02X]------", type_str, (write) ? "WRITE" : "READ", dev, dev->getName(ep->getIntfNb()), dev->getHub(), dev->getPort(), dev->getAddress(), ep->getAddress());
|
|
#endif
|
|
|
|
Lock lock(this);
|
|
|
|
USB_TYPE res;
|
|
ENDPOINT_DIRECTION dir = (write) ? OUT : IN;
|
|
|
|
if (dev == NULL) {
|
|
USB_ERR("dev NULL");
|
|
return USB_TYPE_ERROR;
|
|
}
|
|
|
|
if (ep == NULL) {
|
|
USB_ERR("ep NULL");
|
|
return USB_TYPE_ERROR;
|
|
}
|
|
|
|
if (ep->getState() != USB_TYPE_IDLE) {
|
|
USB_WARN("[ep: %p - dev: %p - %s] NOT IDLE: %s", ep, ep->dev, ep->dev->getName(ep->getIntfNb()), ep->getStateString());
|
|
return ep->getState();
|
|
}
|
|
|
|
if ((ep->getDir() != dir) || (ep->getType() != type)) {
|
|
USB_ERR("[ep: %p - dev: %p] wrong dir or bad USBEndpoint type", ep, ep->dev);
|
|
return USB_TYPE_ERROR;
|
|
}
|
|
|
|
if (dev->getAddress() != ep->getDeviceAddress()) {
|
|
USB_ERR("[ep: %p - dev: %p] USBEndpoint addr and device addr don't match", ep, ep->dev);
|
|
return USB_TYPE_ERROR;
|
|
}
|
|
|
|
#if DEBUG_TRANSFER
|
|
if (write) {
|
|
USB_DBG_TRANSFER("%s WRITE buffer", type_str);
|
|
for (int i = 0; i < ep->getLengthTransferred(); i++)
|
|
printf("%02X ", buf[i]);
|
|
printf("\r\n\r\n");
|
|
}
|
|
#endif
|
|
addTransfer(ep, buf, len);
|
|
|
|
if (blocking) {
|
|
|
|
ep->ep_queue.get();
|
|
res = ep->getState();
|
|
|
|
USB_DBG_TRANSFER("%s TRANSFER res: %s on ep: %p\r\n", type_str, ep->getStateString(), ep);
|
|
|
|
if (res != USB_TYPE_IDLE) {
|
|
return res;
|
|
}
|
|
|
|
return USB_TYPE_OK;
|
|
}
|
|
|
|
return USB_TYPE_PROCESSING;
|
|
|
|
}
|
|
|
|
|
|
USB_TYPE USBHost::controlRead(USBDeviceConnected * dev, uint8_t requestType, uint8_t request, uint32_t value, uint32_t index, uint8_t * buf, uint32_t len) {
|
|
return controlTransfer(dev, requestType, request, value, index, buf, len, false);
|
|
}
|
|
|
|
USB_TYPE USBHost::controlWrite(USBDeviceConnected * dev, uint8_t requestType, uint8_t request, uint32_t value, uint32_t index, uint8_t * buf, uint32_t len) {
|
|
return controlTransfer(dev, requestType, request, value, index, buf, len, true);
|
|
}
|
|
|
|
USB_TYPE USBHost::controlTransfer(USBDeviceConnected * dev, uint8_t requestType, uint8_t request, uint32_t value, uint32_t index, uint8_t * buf, uint32_t len, bool write)
|
|
{
|
|
Lock lock(this);
|
|
USB_DBG_TRANSFER("----- CONTROL %s [dev: %p - hub: %d - port: %d] ------", (write) ? "WRITE" : "READ", dev, dev->getHub(), dev->getPort());
|
|
|
|
int length_transfer = len;
|
|
USB_TYPE res;
|
|
uint32_t token;
|
|
|
|
control->setSpeed(dev->getSpeed());
|
|
control->setSize(dev->getSizeControlEndpoint());
|
|
if (dev->isActiveAddress()) {
|
|
control->setDeviceAddress(dev->getAddress());
|
|
} else {
|
|
control->setDeviceAddress(0);
|
|
}
|
|
|
|
USB_DBG_TRANSFER("Control transfer on device: %d\r\n", control->getDeviceAddress());
|
|
fillControlBuf(requestType, request, value, index, len);
|
|
|
|
#if DEBUG_TRANSFER
|
|
USB_DBG_TRANSFER("SETUP PACKET: ");
|
|
for (int i = 0; i < 8; i++)
|
|
printf("%01X ", setupPacket[i]);
|
|
printf("\r\n");
|
|
#endif
|
|
|
|
control->setNextToken(TD_SETUP);
|
|
addTransfer(control, (uint8_t*)setupPacket, 8);
|
|
|
|
control->ep_queue.get();
|
|
res = control->getState();
|
|
|
|
USB_DBG_TRANSFER("CONTROL setup stage %s", control->getStateString());
|
|
|
|
if (res != USB_TYPE_IDLE) {
|
|
return res;
|
|
}
|
|
|
|
if (length_transfer) {
|
|
token = (write) ? TD_OUT : TD_IN;
|
|
control->setNextToken(token);
|
|
addTransfer(control, (uint8_t *)buf, length_transfer);
|
|
|
|
control->ep_queue.get();
|
|
res = control->getState();
|
|
|
|
#if DEBUG_TRANSFER
|
|
USB_DBG_TRANSFER("CONTROL %s stage %s", (write) ? "WRITE" : "READ", control->getStateString());
|
|
if (write) {
|
|
USB_DBG_TRANSFER("CONTROL WRITE buffer");
|
|
for (int i = 0; i < control->getLengthTransferred(); i++)
|
|
printf("%02X ", buf[i]);
|
|
printf("\r\n\r\n");
|
|
} else {
|
|
USB_DBG_TRANSFER("CONTROL READ SUCCESS [%d bytes transferred]", control->getLengthTransferred());
|
|
for (int i = 0; i < control->getLengthTransferred(); i++)
|
|
printf("%02X ", buf[i]);
|
|
printf("\r\n\r\n");
|
|
}
|
|
#endif
|
|
|
|
if (res != USB_TYPE_IDLE) {
|
|
return res;
|
|
}
|
|
}
|
|
|
|
token = (write) ? TD_IN : TD_OUT;
|
|
control->setNextToken(token);
|
|
addTransfer(control, NULL, 0);
|
|
|
|
control->ep_queue.get();
|
|
res = control->getState();
|
|
|
|
USB_DBG_TRANSFER("CONTROL ack stage %s", control->getStateString());
|
|
|
|
if (res != USB_TYPE_IDLE)
|
|
return res;
|
|
|
|
return USB_TYPE_OK;
|
|
}
|
|
|
|
|
|
void USBHost::fillControlBuf(uint8_t requestType, uint8_t request, uint16_t value, uint16_t index, int len)
|
|
{
|
|
setupPacket[0] = requestType;
|
|
setupPacket[1] = request;
|
|
setupPacket[2] = (uint8_t) value;
|
|
setupPacket[3] = (uint8_t) (value >> 8);
|
|
setupPacket[4] = (uint8_t) index;
|
|
setupPacket[5] = (uint8_t) (index >> 8);
|
|
setupPacket[6] = (uint8_t) len;
|
|
setupPacket[7] = (uint8_t) (len >> 8);
|
|
}
|