Dylan Saada / Mbed 2 deprecated telemetre2

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   mbed

USBHost/USBHostHub/USBHostHub.cpp@0:6ce9c65992e5, 2015-04-15 (annotated)

Committer:
dylancachan
Date:
Wed Apr 15 06:23:18 2015 +0000
Revision:
0:6ce9c65992e5
telemetre

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dylancachan 0:6ce9c65992e5 1 /* mbed USBHost Library
dylancachan 0:6ce9c65992e5 2 * Copyright (c) 2006-2013 ARM Limited
dylancachan 0:6ce9c65992e5 3 *
dylancachan 0:6ce9c65992e5 4 * Licensed under the Apache License, Version 2.0 (the "License");
dylancachan 0:6ce9c65992e5 5 * you may not use this file except in compliance with the License.
dylancachan 0:6ce9c65992e5 6 * You may obtain a copy of the License at
dylancachan 0:6ce9c65992e5 7 *
dylancachan 0:6ce9c65992e5 8 * http://www.apache.org/licenses/LICENSE-2.0
dylancachan 0:6ce9c65992e5 9 *
dylancachan 0:6ce9c65992e5 10 * Unless required by applicable law or agreed to in writing, software
dylancachan 0:6ce9c65992e5 11 * distributed under the License is distributed on an "AS IS" BASIS,
dylancachan 0:6ce9c65992e5 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
dylancachan 0:6ce9c65992e5 13 * See the License for the specific language governing permissions and
dylancachan 0:6ce9c65992e5 14 * limitations under the License.
dylancachan 0:6ce9c65992e5 15 */
dylancachan 0:6ce9c65992e5 16
dylancachan 0:6ce9c65992e5 17 #include "USBHostHub.h"
dylancachan 0:6ce9c65992e5 18
dylancachan 0:6ce9c65992e5 19 #if MAX_HUB_NB
dylancachan 0:6ce9c65992e5 20
dylancachan 0:6ce9c65992e5 21 #include "USBHost.h"
dylancachan 0:6ce9c65992e5 22 #include "dbg.h"
dylancachan 0:6ce9c65992e5 23
dylancachan 0:6ce9c65992e5 24 #define GET_STATUS 0x00
dylancachan 0:6ce9c65992e5 25 #define CLEAR_FEATURE 0x01
dylancachan 0:6ce9c65992e5 26 #define GET_STATE 0x02
dylancachan 0:6ce9c65992e5 27 #define SET_FEATURE 0x03
dylancachan 0:6ce9c65992e5 28 #define GET_DESCRIPTOR 0x06
dylancachan 0:6ce9c65992e5 29
dylancachan 0:6ce9c65992e5 30 #define PORT_CONNECTION_FEATURE (0x00)
dylancachan 0:6ce9c65992e5 31 #define PORT_ENABLE_FEATURE (0x01)
dylancachan 0:6ce9c65992e5 32 #define PORT_RESET_FEATURE (0x04)
dylancachan 0:6ce9c65992e5 33 #define PORT_POWER_FEATURE (0x08)
dylancachan 0:6ce9c65992e5 34
dylancachan 0:6ce9c65992e5 35 #define C_PORT_CONNECTION_FEATURE (16)
dylancachan 0:6ce9c65992e5 36 #define C_PORT_ENABLE_FEATURE (17)
dylancachan 0:6ce9c65992e5 37 #define C_PORT_RESET_FEATURE (20)
dylancachan 0:6ce9c65992e5 38
dylancachan 0:6ce9c65992e5 39 #define PORT_CONNECTION (1 << 0)
dylancachan 0:6ce9c65992e5 40 #define PORT_ENABLE (1 << 1)
dylancachan 0:6ce9c65992e5 41 #define PORT_SUSPEND (1 << 2)
dylancachan 0:6ce9c65992e5 42 #define PORT_OVER_CURRENT (1 << 3)
dylancachan 0:6ce9c65992e5 43 #define PORT_RESET (1 << 4)
dylancachan 0:6ce9c65992e5 44 #define PORT_POWER (1 << 8)
dylancachan 0:6ce9c65992e5 45 #define PORT_LOW_SPEED (1 << 9)
dylancachan 0:6ce9c65992e5 46
dylancachan 0:6ce9c65992e5 47 #define C_PORT_CONNECTION (1 << 16)
dylancachan 0:6ce9c65992e5 48 #define C_PORT_ENABLE (1 << 17)
dylancachan 0:6ce9c65992e5 49 #define C_PORT_SUSPEND (1 << 18)
dylancachan 0:6ce9c65992e5 50 #define C_PORT_OVER_CURRENT (1 << 19)
dylancachan 0:6ce9c65992e5 51 #define C_PORT_RESET (1 << 20)
dylancachan 0:6ce9c65992e5 52
dylancachan 0:6ce9c65992e5 53 USBHostHub::USBHostHub() {
dylancachan 0:6ce9c65992e5 54 host = NULL;
dylancachan 0:6ce9c65992e5 55 init();
dylancachan 0:6ce9c65992e5 56 }
dylancachan 0:6ce9c65992e5 57
dylancachan 0:6ce9c65992e5 58 void USBHostHub::init() {
dylancachan 0:6ce9c65992e5 59 dev_connected = false;
dylancachan 0:6ce9c65992e5 60 dev = NULL;
dylancachan 0:6ce9c65992e5 61 int_in = NULL;
dylancachan 0:6ce9c65992e5 62 dev_connected = false;
dylancachan 0:6ce9c65992e5 63 hub_intf = -1;
dylancachan 0:6ce9c65992e5 64 hub_device_found = false;
dylancachan 0:6ce9c65992e5 65 nb_port = 0;
dylancachan 0:6ce9c65992e5 66 hub_characteristics = 0;
dylancachan 0:6ce9c65992e5 67
dylancachan 0:6ce9c65992e5 68 for (int i = 0; i < MAX_HUB_PORT; i++) {
dylancachan 0:6ce9c65992e5 69 device_children[i] = NULL;
dylancachan 0:6ce9c65992e5 70 }
dylancachan 0:6ce9c65992e5 71 }
dylancachan 0:6ce9c65992e5 72
dylancachan 0:6ce9c65992e5 73 void USBHostHub::setHost(USBHost * host_) {
dylancachan 0:6ce9c65992e5 74 host = host_;
dylancachan 0:6ce9c65992e5 75 }
dylancachan 0:6ce9c65992e5 76
dylancachan 0:6ce9c65992e5 77 bool USBHostHub::connected()
dylancachan 0:6ce9c65992e5 78 {
dylancachan 0:6ce9c65992e5 79 return dev_connected;
dylancachan 0:6ce9c65992e5 80 }
dylancachan 0:6ce9c65992e5 81
dylancachan 0:6ce9c65992e5 82 bool USBHostHub::connect(USBDeviceConnected * dev)
dylancachan 0:6ce9c65992e5 83 {
dylancachan 0:6ce9c65992e5 84 if (dev_connected) {
dylancachan 0:6ce9c65992e5 85 return true;
dylancachan 0:6ce9c65992e5 86 }
dylancachan 0:6ce9c65992e5 87
dylancachan 0:6ce9c65992e5 88 if(host->enumerate(dev, this)) {
dylancachan 0:6ce9c65992e5 89 init();
dylancachan 0:6ce9c65992e5 90 return false;
dylancachan 0:6ce9c65992e5 91 }
dylancachan 0:6ce9c65992e5 92
dylancachan 0:6ce9c65992e5 93 if (hub_device_found) {
dylancachan 0:6ce9c65992e5 94 this->dev = dev;
dylancachan 0:6ce9c65992e5 95
dylancachan 0:6ce9c65992e5 96 int_in = dev->getEndpoint(hub_intf, INTERRUPT_ENDPOINT, IN);
dylancachan 0:6ce9c65992e5 97
dylancachan 0:6ce9c65992e5 98 if (!int_in) {
dylancachan 0:6ce9c65992e5 99 init();
dylancachan 0:6ce9c65992e5 100 return false;
dylancachan 0:6ce9c65992e5 101 }
dylancachan 0:6ce9c65992e5 102
dylancachan 0:6ce9c65992e5 103 USB_INFO("New HUB: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, hub_intf);
dylancachan 0:6ce9c65992e5 104 dev->setName("Hub", hub_intf);
dylancachan 0:6ce9c65992e5 105 host->registerDriver(dev, hub_intf, this, &USBHostHub::disconnect);
dylancachan 0:6ce9c65992e5 106
dylancachan 0:6ce9c65992e5 107 int_in->attach(this, &USBHostHub::rxHandler);
dylancachan 0:6ce9c65992e5 108
dylancachan 0:6ce9c65992e5 109 // get HUB descriptor
dylancachan 0:6ce9c65992e5 110 host->controlRead( dev,
dylancachan 0:6ce9c65992e5 111 USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS,
dylancachan 0:6ce9c65992e5 112 GET_DESCRIPTOR,
dylancachan 0:6ce9c65992e5 113 0x29 << 8, 0, buf, sizeof(HubDescriptor));
dylancachan 0:6ce9c65992e5 114 nb_port = buf[2];
dylancachan 0:6ce9c65992e5 115 hub_characteristics = buf[3];
dylancachan 0:6ce9c65992e5 116
dylancachan 0:6ce9c65992e5 117 USB_DBG("Hub has %d port", nb_port);
dylancachan 0:6ce9c65992e5 118
dylancachan 0:6ce9c65992e5 119 for (uint8_t j = 1; j <= nb_port; j++) {
dylancachan 0:6ce9c65992e5 120 setPortFeature(PORT_POWER_FEATURE, j);
dylancachan 0:6ce9c65992e5 121 }
dylancachan 0:6ce9c65992e5 122 wait_ms(buf[5]*2);
dylancachan 0:6ce9c65992e5 123
dylancachan 0:6ce9c65992e5 124 host->interruptRead(dev, int_in, buf, 1, false);
dylancachan 0:6ce9c65992e5 125 dev_connected = true;
dylancachan 0:6ce9c65992e5 126 return true;
dylancachan 0:6ce9c65992e5 127 }
dylancachan 0:6ce9c65992e5 128
dylancachan 0:6ce9c65992e5 129 return false;
dylancachan 0:6ce9c65992e5 130 }
dylancachan 0:6ce9c65992e5 131
dylancachan 0:6ce9c65992e5 132 void USBHostHub::disconnect() {
dylancachan 0:6ce9c65992e5 133 init();
dylancachan 0:6ce9c65992e5 134 }
dylancachan 0:6ce9c65992e5 135
dylancachan 0:6ce9c65992e5 136 /*virtual*/ void USBHostHub::setVidPid(uint16_t vid, uint16_t pid)
dylancachan 0:6ce9c65992e5 137 {
dylancachan 0:6ce9c65992e5 138 // we don't check VID/PID for MSD driver
dylancachan 0:6ce9c65992e5 139 }
dylancachan 0:6ce9c65992e5 140
dylancachan 0:6ce9c65992e5 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
dylancachan 0:6ce9c65992e5 142 {
dylancachan 0:6ce9c65992e5 143 if ((hub_intf == -1) &&
dylancachan 0:6ce9c65992e5 144 (intf_class == HUB_CLASS) &&
dylancachan 0:6ce9c65992e5 145 (intf_subclass == 0) &&
dylancachan 0:6ce9c65992e5 146 (intf_protocol == 0)) {
dylancachan 0:6ce9c65992e5 147 hub_intf = intf_nb;
dylancachan 0:6ce9c65992e5 148 return true;
dylancachan 0:6ce9c65992e5 149 }
dylancachan 0:6ce9c65992e5 150 return false;
dylancachan 0:6ce9c65992e5 151 }
dylancachan 0:6ce9c65992e5 152
dylancachan 0:6ce9c65992e5 153 /*virtual*/ bool USBHostHub::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used
dylancachan 0:6ce9c65992e5 154 {
dylancachan 0:6ce9c65992e5 155 if (intf_nb == hub_intf) {
dylancachan 0:6ce9c65992e5 156 if ((type == INTERRUPT_ENDPOINT) && (dir == IN)) {
dylancachan 0:6ce9c65992e5 157 hub_device_found = true;
dylancachan 0:6ce9c65992e5 158 return true;
dylancachan 0:6ce9c65992e5 159 }
dylancachan 0:6ce9c65992e5 160 }
dylancachan 0:6ce9c65992e5 161 return false;
dylancachan 0:6ce9c65992e5 162 }
dylancachan 0:6ce9c65992e5 163
dylancachan 0:6ce9c65992e5 164 void USBHostHub::deviceConnected(USBDeviceConnected * dev) {
dylancachan 0:6ce9c65992e5 165 device_children[dev->getPort() - 1] = dev;
dylancachan 0:6ce9c65992e5 166 }
dylancachan 0:6ce9c65992e5 167
dylancachan 0:6ce9c65992e5 168 void USBHostHub::deviceDisconnected(USBDeviceConnected * dev) {
dylancachan 0:6ce9c65992e5 169 device_children[dev->getPort() - 1] = NULL;
dylancachan 0:6ce9c65992e5 170 }
dylancachan 0:6ce9c65992e5 171
dylancachan 0:6ce9c65992e5 172 void USBHostHub::hubDisconnected() {
dylancachan 0:6ce9c65992e5 173 for (uint8_t i = 0; i < MAX_HUB_PORT; i++) {
dylancachan 0:6ce9c65992e5 174 if (device_children[i] != NULL) {
dylancachan 0:6ce9c65992e5 175 host->freeDevice(device_children[i]);
dylancachan 0:6ce9c65992e5 176 }
dylancachan 0:6ce9c65992e5 177 }
dylancachan 0:6ce9c65992e5 178 }
dylancachan 0:6ce9c65992e5 179
dylancachan 0:6ce9c65992e5 180 void USBHostHub::rxHandler() {
dylancachan 0:6ce9c65992e5 181 uint32_t status;
dylancachan 0:6ce9c65992e5 182 if (int_in) {
dylancachan 0:6ce9c65992e5 183 if (int_in->getState() == USB_TYPE_IDLE) {
dylancachan 0:6ce9c65992e5 184 for (int port = 1; port <= nb_port; port++) {
dylancachan 0:6ce9c65992e5 185 status = getPortStatus(port);
dylancachan 0:6ce9c65992e5 186 USB_DBG("[hub handler hub: %d] status port %d [hub: %p]: 0x%X", dev->getHub(), port, dev, status);
dylancachan 0:6ce9c65992e5 187
dylancachan 0:6ce9c65992e5 188 // if connection status has changed
dylancachan 0:6ce9c65992e5 189 if (status & C_PORT_CONNECTION) {
dylancachan 0:6ce9c65992e5 190 if (status & PORT_CONNECTION) {
dylancachan 0:6ce9c65992e5 191 USB_DBG("[hub handler hub: %d - port: %d] new device connected", dev->getHub(), port);
dylancachan 0:6ce9c65992e5 192 host->deviceConnected(dev->getHub() + 1, port, status & PORT_LOW_SPEED, this);
dylancachan 0:6ce9c65992e5 193 } else {
dylancachan 0:6ce9c65992e5 194 USB_DBG("[hub handler hub: %d - port: %d] device disconnected", dev->getHub(), port);
dylancachan 0:6ce9c65992e5 195 host->deviceDisconnected(dev->getHub() + 1, port, this, 0);
dylancachan 0:6ce9c65992e5 196 }
dylancachan 0:6ce9c65992e5 197
dylancachan 0:6ce9c65992e5 198 clearPortFeature(C_PORT_CONNECTION_FEATURE, port);
dylancachan 0:6ce9c65992e5 199 }
dylancachan 0:6ce9c65992e5 200
dylancachan 0:6ce9c65992e5 201 if (status & C_PORT_RESET) {
dylancachan 0:6ce9c65992e5 202 clearPortFeature(C_PORT_RESET_FEATURE, port);
dylancachan 0:6ce9c65992e5 203 }
dylancachan 0:6ce9c65992e5 204
dylancachan 0:6ce9c65992e5 205 if (status & C_PORT_ENABLE) {
dylancachan 0:6ce9c65992e5 206 clearPortFeature(C_PORT_ENABLE_FEATURE, port);
dylancachan 0:6ce9c65992e5 207 }
dylancachan 0:6ce9c65992e5 208
dylancachan 0:6ce9c65992e5 209 if ((status & PORT_OVER_CURRENT)) {
dylancachan 0:6ce9c65992e5 210 USB_ERR("OVER CURRENT DETECTED\r\n");
dylancachan 0:6ce9c65992e5 211 clearPortFeature(PORT_OVER_CURRENT, port);
dylancachan 0:6ce9c65992e5 212 host->deviceDisconnected(dev->getHub() + 1, port, this, 0);
dylancachan 0:6ce9c65992e5 213 }
dylancachan 0:6ce9c65992e5 214 }
dylancachan 0:6ce9c65992e5 215 }
dylancachan 0:6ce9c65992e5 216 host->interruptRead(dev, int_in, buf, 1, false);
dylancachan 0:6ce9c65992e5 217 }
dylancachan 0:6ce9c65992e5 218 }
dylancachan 0:6ce9c65992e5 219
dylancachan 0:6ce9c65992e5 220 void USBHostHub::portReset(uint8_t port) {
dylancachan 0:6ce9c65992e5 221 // reset port
dylancachan 0:6ce9c65992e5 222 uint32_t status;
dylancachan 0:6ce9c65992e5 223 USB_DBG("reset port %d on hub: %p [this: %p]", port, dev, this)
dylancachan 0:6ce9c65992e5 224 setPortFeature(PORT_RESET_FEATURE, port);
dylancachan 0:6ce9c65992e5 225 #if defined(TARGET_RZ_A1H)
dylancachan 0:6ce9c65992e5 226 Thread::wait(50); // Reset release waiting for Hi-Speed check.
dylancachan 0:6ce9c65992e5 227 #endif
dylancachan 0:6ce9c65992e5 228 while(1) {
dylancachan 0:6ce9c65992e5 229 status = getPortStatus(port);
dylancachan 0:6ce9c65992e5 230 if (status & (PORT_ENABLE | PORT_RESET))
dylancachan 0:6ce9c65992e5 231 break;
dylancachan 0:6ce9c65992e5 232 if (status & PORT_OVER_CURRENT) {
dylancachan 0:6ce9c65992e5 233 USB_ERR("OVER CURRENT DETECTED\r\n");
dylancachan 0:6ce9c65992e5 234 clearPortFeature(PORT_OVER_CURRENT, port);
dylancachan 0:6ce9c65992e5 235 host->deviceDisconnected(dev->getHub() + 1, port, this, 0);
dylancachan 0:6ce9c65992e5 236 break;
dylancachan 0:6ce9c65992e5 237 }
dylancachan 0:6ce9c65992e5 238 Thread::wait(10);
dylancachan 0:6ce9c65992e5 239 }
dylancachan 0:6ce9c65992e5 240 }
dylancachan 0:6ce9c65992e5 241
dylancachan 0:6ce9c65992e5 242 void USBHostHub::setPortFeature(uint32_t feature, uint8_t port) {
dylancachan 0:6ce9c65992e5 243 host->controlWrite( dev,
dylancachan 0:6ce9c65992e5 244 USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE | USB_RECIPIENT_ENDPOINT,
dylancachan 0:6ce9c65992e5 245 SET_FEATURE,
dylancachan 0:6ce9c65992e5 246 feature,
dylancachan 0:6ce9c65992e5 247 port,
dylancachan 0:6ce9c65992e5 248 NULL,
dylancachan 0:6ce9c65992e5 249 0);
dylancachan 0:6ce9c65992e5 250 }
dylancachan 0:6ce9c65992e5 251
dylancachan 0:6ce9c65992e5 252 void USBHostHub::clearPortFeature(uint32_t feature, uint8_t port) {
dylancachan 0:6ce9c65992e5 253 host->controlWrite( dev,
dylancachan 0:6ce9c65992e5 254 USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE | USB_RECIPIENT_ENDPOINT,
dylancachan 0:6ce9c65992e5 255 CLEAR_FEATURE,
dylancachan 0:6ce9c65992e5 256 feature,
dylancachan 0:6ce9c65992e5 257 port,
dylancachan 0:6ce9c65992e5 258 NULL,
dylancachan 0:6ce9c65992e5 259 0);
dylancachan 0:6ce9c65992e5 260 }
dylancachan 0:6ce9c65992e5 261
dylancachan 0:6ce9c65992e5 262 uint32_t USBHostHub::getPortStatus(uint8_t port) {
dylancachan 0:6ce9c65992e5 263 uint32_t st;
dylancachan 0:6ce9c65992e5 264 host->controlRead( dev,
dylancachan 0:6ce9c65992e5 265 USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE | USB_RECIPIENT_ENDPOINT,
dylancachan 0:6ce9c65992e5 266 GET_STATUS,
dylancachan 0:6ce9c65992e5 267 0,
dylancachan 0:6ce9c65992e5 268 port,
dylancachan 0:6ce9c65992e5 269 (uint8_t *)&st,
dylancachan 0:6ce9c65992e5 270 4);
dylancachan 0:6ce9c65992e5 271 return st;
dylancachan 0:6ce9c65992e5 272 }
dylancachan 0:6ce9c65992e5 273
dylancachan 0:6ce9c65992e5 274 #endif