tmk_core/tool/mbed/mbed-sdk/libraries/USBHost/USBHost/USBDeviceConnected.cpp

   1 /* mbed USBHost Library
   2  * Copyright (c) 2006-2013 ARM Limited
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include "USBDeviceConnected.h"
  18 #include "dbg.h"
  19
  20 USBDeviceConnected::USBDeviceConnected() {
  21     init();
  22 }
  23
  24 void USBDeviceConnected::init() {
  25     hub_nb = 0;
  26     port = 0;
  27     vid = 0;
  28     pid = 0;
  29     nb_interf = 0;
  30     enumerated = false;
  31     activeAddr = false;
  32     sizeControlEndpoint = 8;
  33     device_class = 0;
  34     device_subclass = 0;
  35     proto = 0;
  36     speed = false;
  37     for (int i = 0; i < MAX_INTF; i++) {
  38         memset((void *)&intf[i], 0, sizeof(INTERFACE));
  39         intf[i].in_use = false;
  40         for (int j = 0; j < MAX_ENDPOINT_PER_INTERFACE; j++) {
  41             intf[i].ep[j] = NULL;
  42             strcpy(intf[i].name, "Unknown");
  43         }
  44     }
  45     hub_parent = NULL;
  46     hub = NULL;
  47     nb_interf = 0;
  48 }
  49
  50 INTERFACE * USBDeviceConnected::getInterface(uint8_t index) {
  51     if (index >= MAX_INTF)
  52         return NULL;
  53
  54     if (intf[index].in_use)
  55         return &intf[index];
  56
  57     return NULL;
  58 }
  59
  60 bool USBDeviceConnected::addInterface(uint8_t intf_nb, uint8_t intf_class, uint8_t intf_subclass, uint8_t intf_protocol) {
  61     if ((intf_nb >= MAX_INTF) || (intf[intf_nb].in_use)) {
  62         return false;
  63     }
  64     intf[intf_nb].in_use = true;
  65     intf[intf_nb].intf_class = intf_class;
  66     intf[intf_nb].intf_subclass = intf_subclass;
  67     intf[intf_nb].intf_protocol = intf_protocol;
  68     intf[intf_nb].nb_endpoint = 0;
  69     return true;
  70 }
  71
  72 bool USBDeviceConnected::addEndpoint(uint8_t intf_nb, USBEndpoint * ept) {
  73     if ((intf_nb >= MAX_INTF) || (intf[intf_nb].in_use == false) || (intf[intf_nb].nb_endpoint >= MAX_ENDPOINT_PER_INTERFACE)) {
  74         return false;
  75     }
  76     intf[intf_nb].nb_endpoint++;
  77
  78     for (int i = 0; i < MAX_ENDPOINT_PER_INTERFACE; i++) {
  79         if (intf[intf_nb].ep[i] == NULL) {
  80             intf[intf_nb].ep[i] = ept;
  81             return true;
  82         }
  83     }
  84     return false;
  85 }
  86
  87 void USBDeviceConnected::init(uint8_t hub_, uint8_t port_, bool lowSpeed_) {
  88     USB_DBG("init dev: %p", this);
  89     init();
  90     hub_nb = hub_;
  91     port = port_;
  92     speed = lowSpeed_;
  93 }
  94
  95 void USBDeviceConnected::disconnect() {
  96     for(int i = 0; i < MAX_INTF; i++) {
  97         intf[i].detach.call();
  98     }
  99     init();
 100 }
 101
 102
 103 USBEndpoint * USBDeviceConnected::getEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir, uint8_t index) {
 104     if (intf_nb >= MAX_INTF) {
 105         return NULL;
 106     }
 107     for (int i = 0; i < MAX_ENDPOINT_PER_INTERFACE; i++) {
 108         if ((intf[intf_nb].ep[i]->getType() == type) && (intf[intf_nb].ep[i]->getDir() == dir)) {
 109             if(index) {
 110                 index--;
 111             } else {
 112                 return intf[intf_nb].ep[i];
 113             }
 114         }
 115     }
 116     return NULL;
 117 }
 118
 119 USBEndpoint * USBDeviceConnected::getEndpoint(uint8_t intf_nb, uint8_t index) {
 120     if ((intf_nb >= MAX_INTF) || (index >= MAX_ENDPOINT_PER_INTERFACE)) {
 121         return NULL;
 122     }
 123     return intf[intf_nb].ep[index];
 124 }