USBDeviceConnected.cpp

00001 /* mbed USBHost Library
00002  * Copyright (c) 2006-2013 ARM Limited
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *     http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 
00017 #include "USBDeviceConnected.h"
00018 #include "dbg.h"
00019 
00020 USBDeviceConnected::USBDeviceConnected() {
00021     init();
00022 }
00023 
00024 void USBDeviceConnected::init() {
00025     hub_nb = 0;
00026     port = 0;
00027     vid = 0;
00028     pid = 0;
00029     nb_interf = 0;
00030     enumerated = false;
00031     activeAddr = false;
00032     sizeControlEndpoint = 8;
00033     device_class = 0;
00034     device_subclass = 0;
00035     proto = 0;
00036     speed = false;
00037     for (int i = 0; i < MAX_INTF; i++) {
00038         memset((void *)&intf[i], 0, sizeof(INTERFACE));
00039         intf[i].in_use = false;
00040         for (int j = 0; j < MAX_ENDPOINT_PER_INTERFACE; j++) {
00041             intf[i].ep[j] = NULL;
00042             strcpy(intf[i].name, "Unknown");
00043         }
00044     }
00045     hub_parent = NULL;
00046     hub = NULL;
00047     nb_interf = 0;
00048 }
00049 
00050 INTERFACE * USBDeviceConnected::getInterface(uint8_t index) {
00051     if (index >= MAX_INTF)
00052         return NULL;
00053 
00054     if (intf[index].in_use)
00055         return &intf[index];
00056 
00057     return NULL;
00058 }
00059 
00060 bool USBDeviceConnected::addInterface(uint8_t intf_nb, uint8_t intf_class, uint8_t intf_subclass, uint8_t intf_protocol) {
00061     if ((intf_nb >= MAX_INTF) || (intf[intf_nb].in_use)) {
00062         return false;
00063     }
00064     intf[intf_nb].in_use = true;
00065     intf[intf_nb].intf_class = intf_class;
00066     intf[intf_nb].intf_subclass = intf_subclass;
00067     intf[intf_nb].intf_protocol = intf_protocol;
00068     intf[intf_nb].nb_endpoint = 0;
00069     return true;
00070 }
00071 
00072 bool USBDeviceConnected::addEndpoint(uint8_t intf_nb, USBEndpoint * ept) {
00073     if ((intf_nb >= MAX_INTF) || (intf[intf_nb].in_use == false) || (intf[intf_nb].nb_endpoint >= MAX_ENDPOINT_PER_INTERFACE)) {
00074         return false;
00075     }
00076     intf[intf_nb].nb_endpoint++;
00077 
00078     for (int i = 0; i < MAX_ENDPOINT_PER_INTERFACE; i++) {
00079         if (intf[intf_nb].ep[i] == NULL) {
00080             intf[intf_nb].ep[i] = ept;
00081             return true;
00082         }
00083     }
00084     return false;
00085 }
00086 
00087 void USBDeviceConnected::init(uint8_t hub_, uint8_t port_, bool lowSpeed_) {
00088     USB_DBG("init dev: %p", this);
00089     init();
00090     hub_nb = hub_;
00091     port = port_;
00092     speed = lowSpeed_;
00093 }
00094 
00095 void USBDeviceConnected::disconnect() {
00096     for(int i = 0; i < MAX_INTF; i++) {
00097         intf[i].detach.call();
00098     }
00099     init();
00100 }
00101 
00102 
00103 USBEndpoint * USBDeviceConnected::getEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir, uint8_t index) {
00104     if (intf_nb >= MAX_INTF) {
00105         return NULL;
00106     }
00107     for (int i = 0; i < MAX_ENDPOINT_PER_INTERFACE; i++) {
00108         if ((intf[intf_nb].ep[i]->getType() == type) && (intf[intf_nb].ep[i]->getDir() == dir)) {
00109             if(index) {
00110                 index--;
00111             } else {
00112                 return intf[intf_nb].ep[i];
00113             }
00114         }
00115     }
00116     return NULL;
00117 }
00118 
00119 USBEndpoint * USBDeviceConnected::getEndpoint(uint8_t intf_nb, uint8_t index) {
00120     if ((intf_nb >= MAX_INTF) || (index >= MAX_ENDPOINT_PER_INTERFACE)) {
00121         return NULL;
00122     }
00123     return intf[intf_nb].ep[index];
00124 }