Fixing issues with library dependencies
Dependencies: FATFileSystem mbed-rtos
Fork of USBHost by
USBHostHub.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 "USBHostHub.h" 00018 00019 #if MAX_HUB_NB 00020 00021 #include "USBHost.h" 00022 #include "dbg.h" 00023 00024 #define GET_STATUS 0x00 00025 #define CLEAR_FEATURE 0x01 00026 #define GET_STATE 0x02 00027 #define SET_FEATURE 0x03 00028 #define GET_DESCRIPTOR 0x06 00029 00030 #define PORT_CONNECTION_FEATURE (0x00) 00031 #define PORT_ENABLE_FEATURE (0x01) 00032 #define PORT_RESET_FEATURE (0x04) 00033 #define PORT_POWER_FEATURE (0x08) 00034 00035 #define C_PORT_CONNECTION_FEATURE (16) 00036 #define C_PORT_ENABLE_FEATURE (17) 00037 #define C_PORT_RESET_FEATURE (20) 00038 00039 #define PORT_CONNECTION (1 << 0) 00040 #define PORT_ENABLE (1 << 1) 00041 #define PORT_SUSPEND (1 << 2) 00042 #define PORT_OVER_CURRENT (1 << 3) 00043 #define PORT_RESET (1 << 4) 00044 #define PORT_POWER (1 << 8) 00045 #define PORT_LOW_SPEED (1 << 9) 00046 00047 #define C_PORT_CONNECTION (1 << 16) 00048 #define C_PORT_ENABLE (1 << 17) 00049 #define C_PORT_SUSPEND (1 << 18) 00050 #define C_PORT_OVER_CURRENT (1 << 19) 00051 #define C_PORT_RESET (1 << 20) 00052 00053 USBHostHub::USBHostHub() { 00054 host = NULL; 00055 init(); 00056 } 00057 00058 void USBHostHub::init() { 00059 dev_connected = false; 00060 dev = NULL; 00061 int_in = NULL; 00062 dev_connected = false; 00063 hub_intf = -1; 00064 hub_device_found = false; 00065 nb_port = 0; 00066 hub_characteristics = 0; 00067 00068 for (int i = 0; i < MAX_HUB_PORT; i++) { 00069 device_children[i] = NULL; 00070 } 00071 } 00072 00073 void USBHostHub::setHost(USBHost * host_) { 00074 host = host_; 00075 } 00076 00077 bool USBHostHub::connected() 00078 { 00079 return dev_connected; 00080 } 00081 00082 bool USBHostHub::connect(USBDeviceConnected * dev) 00083 { 00084 if (dev_connected) { 00085 return true; 00086 } 00087 00088 if(host->enumerate(dev, this)) { 00089 init(); 00090 return false; 00091 } 00092 00093 if (hub_device_found) { 00094 this->dev = dev; 00095 00096 int_in = dev->getEndpoint(hub_intf, INTERRUPT_ENDPOINT, IN); 00097 00098 if (!int_in) { 00099 init(); 00100 return false; 00101 } 00102 00103 USB_INFO("New HUB: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, hub_intf); 00104 dev->setName("Hub", hub_intf); 00105 host->registerDriver(dev, hub_intf, this, &USBHostHub::disconnect); 00106 00107 int_in->attach(this, &USBHostHub::rxHandler); 00108 00109 // get HUB descriptor 00110 host->controlRead( dev, 00111 USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS, 00112 GET_DESCRIPTOR, 00113 0x29 << 8, 0, buf, sizeof(HubDescriptor)); 00114 nb_port = buf[2]; 00115 hub_characteristics = buf[3]; 00116 00117 USB_DBG("Hub has %d port", nb_port); 00118 00119 for (uint8_t j = 1; j <= nb_port; j++) { 00120 setPortFeature(PORT_POWER_FEATURE, j); 00121 } 00122 wait_ms(buf[5]*2); 00123 00124 host->interruptRead(dev, int_in, buf, 1, false); 00125 dev_connected = true; 00126 return true; 00127 } 00128 00129 return false; 00130 } 00131 00132 void USBHostHub::disconnect() { 00133 init(); 00134 } 00135 00136 /*virtual*/ void USBHostHub::setVidPid(uint16_t vid, uint16_t pid) 00137 { 00138 // we don't check VID/PID for MSD driver 00139 } 00140 00141 /*virtual*/ bool USBHostHub::parseInterface(uint8_t intf_nb, uint8_t intf_class, uint8_t intf_subclass, uint8_t intf_protocol) //Must return true if the interface should be parsed 00142 { 00143 if ((hub_intf == -1) && 00144 (intf_class == HUB_CLASS) && 00145 (intf_subclass == 0) && 00146 (intf_protocol == 0)) { 00147 hub_intf = intf_nb; 00148 return true; 00149 } 00150 return false; 00151 } 00152 00153 /*virtual*/ bool USBHostHub::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used 00154 { 00155 if (intf_nb == hub_intf) { 00156 if ((type == INTERRUPT_ENDPOINT) && (dir == IN)) { 00157 hub_device_found = true; 00158 return true; 00159 } 00160 } 00161 return false; 00162 } 00163 00164 void USBHostHub::deviceConnected(USBDeviceConnected * dev) { 00165 device_children[dev->getPort() - 1] = dev; 00166 } 00167 00168 void USBHostHub::deviceDisconnected(USBDeviceConnected * dev) { 00169 device_children[dev->getPort() - 1] = NULL; 00170 } 00171 00172 void USBHostHub::hubDisconnected() { 00173 for (uint8_t i = 0; i < MAX_HUB_PORT; i++) { 00174 if (device_children[i] != NULL) { 00175 host->freeDevice(device_children[i]); 00176 } 00177 } 00178 } 00179 00180 void USBHostHub::rxHandler() { 00181 uint32_t status; 00182 if (int_in) { 00183 if (int_in->getState() == USB_TYPE_IDLE) { 00184 for (int port = 1; port <= nb_port; port++) { 00185 status = getPortStatus(port); 00186 USB_DBG("[hub handler hub: %d] status port %d [hub: %p]: 0x%X", dev->getHub(), port, dev, status); 00187 00188 // if connection status has changed 00189 if (status & C_PORT_CONNECTION) { 00190 if (status & PORT_CONNECTION) { 00191 USB_DBG("[hub handler hub: %d - port: %d] new device connected", dev->getHub(), port); 00192 host->deviceConnected(dev->getHub() + 1, port, status & PORT_LOW_SPEED, this); 00193 } else { 00194 USB_DBG("[hub handler hub: %d - port: %d] device disconnected", dev->getHub(), port); 00195 host->deviceDisconnected(dev->getHub() + 1, port, this, 0); 00196 } 00197 00198 clearPortFeature(C_PORT_CONNECTION_FEATURE, port); 00199 } 00200 00201 if (status & C_PORT_RESET) { 00202 clearPortFeature(C_PORT_RESET_FEATURE, port); 00203 } 00204 00205 if (status & C_PORT_ENABLE) { 00206 clearPortFeature(C_PORT_ENABLE_FEATURE, port); 00207 } 00208 00209 if ((status & PORT_OVER_CURRENT)) { 00210 USB_ERR("OVER CURRENT DETECTED\r\n"); 00211 clearPortFeature(PORT_OVER_CURRENT, port); 00212 host->deviceDisconnected(dev->getHub() + 1, port, this, 0); 00213 } 00214 } 00215 } 00216 host->interruptRead(dev, int_in, buf, 1, false); 00217 } 00218 } 00219 00220 void USBHostHub::portReset(uint8_t port) { 00221 // reset port 00222 uint32_t status; 00223 USB_DBG("reset port %d on hub: %p [this: %p]", port, dev, this) 00224 setPortFeature(PORT_RESET_FEATURE, port); 00225 #if defined(TARGET_RZ_A1H) 00226 Thread::wait(50); // Reset release waiting for Hi-Speed check. 00227 #endif 00228 while(1) { 00229 status = getPortStatus(port); 00230 if (status & (PORT_ENABLE | PORT_RESET)) 00231 break; 00232 if (status & PORT_OVER_CURRENT) { 00233 USB_ERR("OVER CURRENT DETECTED\r\n"); 00234 clearPortFeature(PORT_OVER_CURRENT, port); 00235 host->deviceDisconnected(dev->getHub() + 1, port, this, 0); 00236 break; 00237 } 00238 Thread::wait(10); 00239 } 00240 } 00241 00242 void USBHostHub::setPortFeature(uint32_t feature, uint8_t port) { 00243 host->controlWrite( dev, 00244 USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE | USB_RECIPIENT_ENDPOINT, 00245 SET_FEATURE, 00246 feature, 00247 port, 00248 NULL, 00249 0); 00250 } 00251 00252 void USBHostHub::clearPortFeature(uint32_t feature, uint8_t port) { 00253 host->controlWrite( dev, 00254 USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE | USB_RECIPIENT_ENDPOINT, 00255 CLEAR_FEATURE, 00256 feature, 00257 port, 00258 NULL, 00259 0); 00260 } 00261 00262 uint32_t USBHostHub::getPortStatus(uint8_t port) { 00263 uint32_t st; 00264 host->controlRead( dev, 00265 USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE | USB_RECIPIENT_ENDPOINT, 00266 GET_STATUS, 00267 0, 00268 port, 00269 (uint8_t *)&st, 00270 4); 00271 return st; 00272 } 00273 00274 #endif
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