Wesley Schon / Mbed 2 deprecated ECE4180Lab3_RTOS

Running multiple threads on mbed using RTOS

Dependencies:   4DGL-uLCD-SE SDFileSystem mbed-rtos mbed wave_player_appbd

USBHostHub/USBHostHub.cpp@4:5fdadaef5b1f, 2016-02-29 (annotated)

Committer:
wschon
Date:
Mon Feb 29 03:46:10 2016 +0000
Revision:
4:5fdadaef5b1f
Parent:
1:2129bb91c172 
fixed EVERYTHING

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wschon 1:2129bb91c172 1 /* mbed USBHost Library
wschon 1:2129bb91c172 2 * Copyright (c) 2006-2013 ARM Limited
wschon 1:2129bb91c172 3 *
wschon 1:2129bb91c172 4 * Licensed under the Apache License, Version 2.0 (the "License");
wschon 1:2129bb91c172 5 * you may not use this file except in compliance with the License.
wschon 1:2129bb91c172 6 * You may obtain a copy of the License at
wschon 1:2129bb91c172 7 *
wschon 1:2129bb91c172 8 * http://www.apache.org/licenses/LICENSE-2.0
wschon 1:2129bb91c172 9 *
wschon 1:2129bb91c172 10 * Unless required by applicable law or agreed to in writing, software
wschon 1:2129bb91c172 11 * distributed under the License is distributed on an "AS IS" BASIS,
wschon 1:2129bb91c172 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
wschon 1:2129bb91c172 13 * See the License for the specific language governing permissions and
wschon 1:2129bb91c172 14 * limitations under the License.
wschon 1:2129bb91c172 15 */
wschon 1:2129bb91c172 16
wschon 1:2129bb91c172 17 #include "USBHostHub.h"
wschon 1:2129bb91c172 18
wschon 1:2129bb91c172 19 #if MAX_HUB_NB
wschon 1:2129bb91c172 20
wschon 1:2129bb91c172 21 #include "USBHost.h"
wschon 1:2129bb91c172 22 #include "dbg.h"
wschon 1:2129bb91c172 23
wschon 1:2129bb91c172 24 #define GET_STATUS 0x00
wschon 1:2129bb91c172 25 #define CLEAR_FEATURE 0x01
wschon 1:2129bb91c172 26 #define GET_STATE 0x02
wschon 1:2129bb91c172 27 #define SET_FEATURE 0x03
wschon 1:2129bb91c172 28 #define GET_DESCRIPTOR 0x06
wschon 1:2129bb91c172 29
wschon 1:2129bb91c172 30 #define PORT_CONNECTION_FEATURE (0x00)
wschon 1:2129bb91c172 31 #define PORT_ENABLE_FEATURE (0x01)
wschon 1:2129bb91c172 32 #define PORT_RESET_FEATURE (0x04)
wschon 1:2129bb91c172 33 #define PORT_POWER_FEATURE (0x08)
wschon 1:2129bb91c172 34
wschon 1:2129bb91c172 35 #define C_PORT_CONNECTION_FEATURE (16)
wschon 1:2129bb91c172 36 #define C_PORT_ENABLE_FEATURE (17)
wschon 1:2129bb91c172 37 #define C_PORT_RESET_FEATURE (20)
wschon 1:2129bb91c172 38
wschon 1:2129bb91c172 39 #define PORT_CONNECTION (1 << 0)
wschon 1:2129bb91c172 40 #define PORT_ENABLE (1 << 1)
wschon 1:2129bb91c172 41 #define PORT_SUSPEND (1 << 2)
wschon 1:2129bb91c172 42 #define PORT_OVER_CURRENT (1 << 3)
wschon 1:2129bb91c172 43 #define PORT_RESET (1 << 4)
wschon 1:2129bb91c172 44 #define PORT_POWER (1 << 8)
wschon 1:2129bb91c172 45 #define PORT_LOW_SPEED (1 << 9)
wschon 1:2129bb91c172 46
wschon 1:2129bb91c172 47 #define C_PORT_CONNECTION (1 << 16)
wschon 1:2129bb91c172 48 #define C_PORT_ENABLE (1 << 17)
wschon 1:2129bb91c172 49 #define C_PORT_SUSPEND (1 << 18)
wschon 1:2129bb91c172 50 #define C_PORT_OVER_CURRENT (1 << 19)
wschon 1:2129bb91c172 51 #define C_PORT_RESET (1 << 20)
wschon 1:2129bb91c172 52
wschon 1:2129bb91c172 53 USBHostHub::USBHostHub() {
wschon 1:2129bb91c172 54 host = NULL;
wschon 1:2129bb91c172 55 init();
wschon 1:2129bb91c172 56 }
wschon 1:2129bb91c172 57
wschon 1:2129bb91c172 58 void USBHostHub::init() {
wschon 1:2129bb91c172 59 dev_connected = false;
wschon 1:2129bb91c172 60 dev = NULL;
wschon 1:2129bb91c172 61 int_in = NULL;
wschon 1:2129bb91c172 62 dev_connected = false;
wschon 1:2129bb91c172 63 hub_intf = -1;
wschon 1:2129bb91c172 64 hub_device_found = false;
wschon 1:2129bb91c172 65 nb_port = 0;
wschon 1:2129bb91c172 66 hub_characteristics = 0;
wschon 1:2129bb91c172 67
wschon 1:2129bb91c172 68 for (int i = 0; i < MAX_HUB_PORT; i++) {
wschon 1:2129bb91c172 69 device_children[i] = NULL;
wschon 1:2129bb91c172 70 }
wschon 1:2129bb91c172 71 }
wschon 1:2129bb91c172 72
wschon 1:2129bb91c172 73 void USBHostHub::setHost(USBHost * host_) {
wschon 1:2129bb91c172 74 host = host_;
wschon 1:2129bb91c172 75 }
wschon 1:2129bb91c172 76
wschon 1:2129bb91c172 77 bool USBHostHub::connected()
wschon 1:2129bb91c172 78 {
wschon 1:2129bb91c172 79 return dev_connected;
wschon 1:2129bb91c172 80 }
wschon 1:2129bb91c172 81
wschon 1:2129bb91c172 82 bool USBHostHub::connect(USBDeviceConnected * dev)
wschon 1:2129bb91c172 83 {
wschon 1:2129bb91c172 84 if (dev_connected) {
wschon 1:2129bb91c172 85 return true;
wschon 1:2129bb91c172 86 }
wschon 1:2129bb91c172 87
wschon 1:2129bb91c172 88 if(host->enumerate(dev, this)) {
wschon 1:2129bb91c172 89 init();
wschon 1:2129bb91c172 90 return false;
wschon 1:2129bb91c172 91 }
wschon 1:2129bb91c172 92
wschon 1:2129bb91c172 93 if (hub_device_found) {
wschon 1:2129bb91c172 94 this->dev = dev;
wschon 1:2129bb91c172 95
wschon 1:2129bb91c172 96 int_in = dev->getEndpoint(hub_intf, INTERRUPT_ENDPOINT, IN);
wschon 1:2129bb91c172 97
wschon 1:2129bb91c172 98 if (!int_in) {
wschon 1:2129bb91c172 99 init();
wschon 1:2129bb91c172 100 return false;
wschon 1:2129bb91c172 101 }
wschon 1:2129bb91c172 102
wschon 1:2129bb91c172 103 USB_INFO("New HUB: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, hub_intf);
wschon 1:2129bb91c172 104 dev->setName("Hub", hub_intf);
wschon 1:2129bb91c172 105 host->registerDriver(dev, hub_intf, this, &USBHostHub::disconnect);
wschon 1:2129bb91c172 106
wschon 1:2129bb91c172 107 int_in->attach(this, &USBHostHub::rxHandler);
wschon 1:2129bb91c172 108
wschon 1:2129bb91c172 109 // get HUB descriptor
wschon 1:2129bb91c172 110 host->controlRead( dev,
wschon 1:2129bb91c172 111 USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS,
wschon 1:2129bb91c172 112 GET_DESCRIPTOR,
wschon 1:2129bb91c172 113 0x29 << 8, 0, buf, sizeof(HubDescriptor));
wschon 1:2129bb91c172 114 nb_port = buf[2];
wschon 1:2129bb91c172 115 hub_characteristics = buf[3];
wschon 1:2129bb91c172 116
wschon 1:2129bb91c172 117 USB_DBG("Hub has %d port", nb_port);
wschon 1:2129bb91c172 118
wschon 1:2129bb91c172 119 for (uint8_t j = 1; j <= nb_port; j++) {
wschon 1:2129bb91c172 120 setPortFeature(PORT_POWER_FEATURE, j);
wschon 1:2129bb91c172 121 }
wschon 1:2129bb91c172 122 wait_ms(buf[5]*2);
wschon 1:2129bb91c172 123
wschon 1:2129bb91c172 124 host->interruptRead(dev, int_in, buf, 1, false);
wschon 1:2129bb91c172 125 dev_connected = true;
wschon 1:2129bb91c172 126 return true;
wschon 1:2129bb91c172 127 }
wschon 1:2129bb91c172 128
wschon 1:2129bb91c172 129 return false;
wschon 1:2129bb91c172 130 }
wschon 1:2129bb91c172 131
wschon 1:2129bb91c172 132 void USBHostHub::disconnect() {
wschon 1:2129bb91c172 133 init();
wschon 1:2129bb91c172 134 }
wschon 1:2129bb91c172 135
wschon 1:2129bb91c172 136 /*virtual*/ void USBHostHub::setVidPid(uint16_t vid, uint16_t pid)
wschon 1:2129bb91c172 137 {
wschon 1:2129bb91c172 138 // we don't check VID/PID for MSD driver
wschon 1:2129bb91c172 139 }
wschon 1:2129bb91c172 140
wschon 1:2129bb91c172 141 /*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
wschon 1:2129bb91c172 142 {
wschon 1:2129bb91c172 143 if ((hub_intf == -1) &&
wschon 1:2129bb91c172 144 (intf_class == HUB_CLASS) &&
wschon 1:2129bb91c172 145 (intf_subclass == 0) &&
wschon 1:2129bb91c172 146 (intf_protocol == 0)) {
wschon 1:2129bb91c172 147 hub_intf = intf_nb;
wschon 1:2129bb91c172 148 return true;
wschon 1:2129bb91c172 149 }
wschon 1:2129bb91c172 150 return false;
wschon 1:2129bb91c172 151 }
wschon 1:2129bb91c172 152
wschon 1:2129bb91c172 153 /*virtual*/ bool USBHostHub::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used
wschon 1:2129bb91c172 154 {
wschon 1:2129bb91c172 155 if (intf_nb == hub_intf) {
wschon 1:2129bb91c172 156 if ((type == INTERRUPT_ENDPOINT) && (dir == IN)) {
wschon 1:2129bb91c172 157 hub_device_found = true;
wschon 1:2129bb91c172 158 return true;
wschon 1:2129bb91c172 159 }
wschon 1:2129bb91c172 160 }
wschon 1:2129bb91c172 161 return false;
wschon 1:2129bb91c172 162 }
wschon 1:2129bb91c172 163
wschon 1:2129bb91c172 164 void USBHostHub::deviceConnected(USBDeviceConnected * dev) {
wschon 1:2129bb91c172 165 device_children[dev->getPort() - 1] = dev;
wschon 1:2129bb91c172 166 }
wschon 1:2129bb91c172 167
wschon 1:2129bb91c172 168 void USBHostHub::deviceDisconnected(USBDeviceConnected * dev) {
wschon 1:2129bb91c172 169 device_children[dev->getPort() - 1] = NULL;
wschon 1:2129bb91c172 170 }
wschon 1:2129bb91c172 171
wschon 1:2129bb91c172 172 void USBHostHub::hubDisconnected() {
wschon 1:2129bb91c172 173 for (uint8_t i = 0; i < MAX_HUB_PORT; i++) {
wschon 1:2129bb91c172 174 if (device_children[i] != NULL) {
wschon 1:2129bb91c172 175 host->freeDevice(device_children[i]);
wschon 1:2129bb91c172 176 }
wschon 1:2129bb91c172 177 }
wschon 1:2129bb91c172 178 }
wschon 1:2129bb91c172 179
wschon 1:2129bb91c172 180 void USBHostHub::rxHandler() {
wschon 1:2129bb91c172 181 uint32_t status;
wschon 1:2129bb91c172 182 if (int_in) {
wschon 1:2129bb91c172 183 if (int_in->getState() == USB_TYPE_IDLE) {
wschon 1:2129bb91c172 184 for (int port = 1; port <= nb_port; port++) {
wschon 1:2129bb91c172 185 status = getPortStatus(port);
wschon 1:2129bb91c172 186 USB_DBG("[hub handler hub: %d] status port %d [hub: %p]: 0x%X", dev->getHub(), port, dev, status);
wschon 1:2129bb91c172 187
wschon 1:2129bb91c172 188 // if connection status has changed
wschon 1:2129bb91c172 189 if (status & C_PORT_CONNECTION) {
wschon 1:2129bb91c172 190 if (status & PORT_CONNECTION) {
wschon 1:2129bb91c172 191 USB_DBG("[hub handler hub: %d - port: %d] new device connected", dev->getHub(), port);
wschon 1:2129bb91c172 192 host->deviceConnected(dev->getHub() + 1, port, status & PORT_LOW_SPEED, this);
wschon 1:2129bb91c172 193 } else {
wschon 1:2129bb91c172 194 USB_DBG("[hub handler hub: %d - port: %d] device disconnected", dev->getHub(), port);
wschon 1:2129bb91c172 195 host->deviceDisconnected(dev->getHub() + 1, port, this, NULL);
wschon 1:2129bb91c172 196 }
wschon 1:2129bb91c172 197
wschon 1:2129bb91c172 198 clearPortFeature(C_PORT_CONNECTION_FEATURE, port);
wschon 1:2129bb91c172 199 }
wschon 1:2129bb91c172 200
wschon 1:2129bb91c172 201 if (status & C_PORT_RESET) {
wschon 1:2129bb91c172 202 clearPortFeature(C_PORT_RESET_FEATURE, port);
wschon 1:2129bb91c172 203 }
wschon 1:2129bb91c172 204
wschon 1:2129bb91c172 205 if (status & C_PORT_ENABLE) {
wschon 1:2129bb91c172 206 clearPortFeature(C_PORT_ENABLE_FEATURE, port);
wschon 1:2129bb91c172 207 }
wschon 1:2129bb91c172 208
wschon 1:2129bb91c172 209 if ((status & PORT_OVER_CURRENT)) {
wschon 1:2129bb91c172 210 USB_ERR("OVER CURRENT DETECTED\r\n");
wschon 1:2129bb91c172 211 clearPortFeature(PORT_OVER_CURRENT, port);
wschon 1:2129bb91c172 212 host->deviceDisconnected(dev->getHub() + 1, port, this, NULL);
wschon 1:2129bb91c172 213 }
wschon 1:2129bb91c172 214 }
wschon 1:2129bb91c172 215 }
wschon 1:2129bb91c172 216 host->interruptRead(dev, int_in, buf, 1, false);
wschon 1:2129bb91c172 217 }
wschon 1:2129bb91c172 218 }
wschon 1:2129bb91c172 219
wschon 1:2129bb91c172 220 void USBHostHub::portReset(uint8_t port) {
wschon 1:2129bb91c172 221 // reset port
wschon 1:2129bb91c172 222 uint32_t status;
wschon 1:2129bb91c172 223 USB_DBG("reset port %d on hub: %p [this: %p]", port, dev, this)
wschon 1:2129bb91c172 224 setPortFeature(PORT_RESET_FEATURE, port);
wschon 1:2129bb91c172 225 while(1) {
wschon 1:2129bb91c172 226 status = getPortStatus(port);
wschon 1:2129bb91c172 227 if (status & (PORT_ENABLE | PORT_RESET))
wschon 1:2129bb91c172 228 break;
wschon 1:2129bb91c172 229 if (status & PORT_OVER_CURRENT) {
wschon 1:2129bb91c172 230 USB_ERR("OVER CURRENT DETECTED\r\n");
wschon 1:2129bb91c172 231 clearPortFeature(PORT_OVER_CURRENT, port);
wschon 1:2129bb91c172 232 host->deviceDisconnected(dev->getHub() + 1, port, this, NULL);
wschon 1:2129bb91c172 233 break;
wschon 1:2129bb91c172 234 }
wschon 1:2129bb91c172 235 Thread::wait(10);
wschon 1:2129bb91c172 236 }
wschon 1:2129bb91c172 237 }
wschon 1:2129bb91c172 238
wschon 1:2129bb91c172 239 void USBHostHub::setPortFeature(uint32_t feature, uint8_t port) {
wschon 1:2129bb91c172 240 host->controlWrite( dev,
wschon 1:2129bb91c172 241 USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE | USB_RECIPIENT_ENDPOINT,
wschon 1:2129bb91c172 242 SET_FEATURE,
wschon 1:2129bb91c172 243 feature,
wschon 1:2129bb91c172 244 port,
wschon 1:2129bb91c172 245 NULL,
wschon 1:2129bb91c172 246 0);
wschon 1:2129bb91c172 247 }
wschon 1:2129bb91c172 248
wschon 1:2129bb91c172 249 void USBHostHub::clearPortFeature(uint32_t feature, uint8_t port) {
wschon 1:2129bb91c172 250 host->controlWrite( dev,
wschon 1:2129bb91c172 251 USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE | USB_RECIPIENT_ENDPOINT,
wschon 1:2129bb91c172 252 CLEAR_FEATURE,
wschon 1:2129bb91c172 253 feature,
wschon 1:2129bb91c172 254 port,
wschon 1:2129bb91c172 255 NULL,
wschon 1:2129bb91c172 256 0);
wschon 1:2129bb91c172 257 }
wschon 1:2129bb91c172 258
wschon 1:2129bb91c172 259 uint32_t USBHostHub::getPortStatus(uint8_t port) {
wschon 1:2129bb91c172 260 uint32_t st;
wschon 1:2129bb91c172 261 host->controlRead( dev,
wschon 1:2129bb91c172 262 USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE | USB_RECIPIENT_ENDPOINT,
wschon 1:2129bb91c172 263 GET_STATUS,
wschon 1:2129bb91c172 264 0,
wschon 1:2129bb91c172 265 port,
wschon 1:2129bb91c172 266 (uint8_t *)&st,
wschon 1:2129bb91c172 267 4);
wschon 1:2129bb91c172 268 return st;
wschon 1:2129bb91c172 269 }
wschon 1:2129bb91c172 270
wschon 1:2129bb91c172 271 #endif