diff options
Diffstat (limited to 'tmk_core/tool/mbed/mbed-sdk/libraries/USBHost/USBHostHub/USBHostHub.cpp')
| -rw-r--r-- | tmk_core/tool/mbed/mbed-sdk/libraries/USBHost/USBHostHub/USBHostHub.cpp | 274 |
1 files changed, 274 insertions, 0 deletions
diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/USBHost/USBHostHub/USBHostHub.cpp b/tmk_core/tool/mbed/mbed-sdk/libraries/USBHost/USBHostHub/USBHostHub.cpp new file mode 100644 index 0000000000..75c57f3ea8 --- /dev/null +++ b/tmk_core/tool/mbed/mbed-sdk/libraries/USBHost/USBHostHub/USBHostHub.cpp @@ -0,0 +1,274 @@ +/* mbed USBHost Library + * Copyright (c) 2006-2013 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "USBHostHub.h" + +#if MAX_HUB_NB + +#include "USBHost.h" +#include "dbg.h" + +#define GET_STATUS 0x00 +#define CLEAR_FEATURE 0x01 +#define GET_STATE 0x02 +#define SET_FEATURE 0x03 +#define GET_DESCRIPTOR 0x06 + +#define PORT_CONNECTION_FEATURE (0x00) +#define PORT_ENABLE_FEATURE (0x01) +#define PORT_RESET_FEATURE (0x04) +#define PORT_POWER_FEATURE (0x08) + +#define C_PORT_CONNECTION_FEATURE (16) +#define C_PORT_ENABLE_FEATURE (17) +#define C_PORT_RESET_FEATURE (20) + +#define PORT_CONNECTION (1 << 0) +#define PORT_ENABLE (1 << 1) +#define PORT_SUSPEND (1 << 2) +#define PORT_OVER_CURRENT (1 << 3) +#define PORT_RESET (1 << 4) +#define PORT_POWER (1 << 8) +#define PORT_LOW_SPEED (1 << 9) + +#define C_PORT_CONNECTION (1 << 16) +#define C_PORT_ENABLE (1 << 17) +#define C_PORT_SUSPEND (1 << 18) +#define C_PORT_OVER_CURRENT (1 << 19) +#define C_PORT_RESET (1 << 20) + +USBHostHub::USBHostHub() { + host = NULL; + init(); +} + +void USBHostHub::init() { + dev_connected = false; + dev = NULL; + int_in = NULL; + dev_connected = false; + hub_intf = -1; + hub_device_found = false; + nb_port = 0; + hub_characteristics = 0; + + for (int i = 0; i < MAX_HUB_PORT; i++) { + device_children[i] = NULL; + } +} + +void USBHostHub::setHost(USBHost * host_) { + host = host_; +} + +bool USBHostHub::connected() +{ + return dev_connected; +} + +bool USBHostHub::connect(USBDeviceConnected * dev) +{ + if (dev_connected) { + return true; + } + + if(host->enumerate(dev, this)) { + init(); + return false; + } + + if (hub_device_found) { + this->dev = dev; + + int_in = dev->getEndpoint(hub_intf, INTERRUPT_ENDPOINT, IN); + + if (!int_in) { + init(); + return false; + } + + USB_INFO("New HUB: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, hub_intf); + dev->setName("Hub", hub_intf); + host->registerDriver(dev, hub_intf, this, &USBHostHub::disconnect); + + int_in->attach(this, &USBHostHub::rxHandler); + + // get HUB descriptor + host->controlRead( dev, + USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS, + GET_DESCRIPTOR, + 0x29 << 8, 0, buf, sizeof(HubDescriptor)); + nb_port = buf[2]; + hub_characteristics = buf[3]; + + USB_DBG("Hub has %d port", nb_port); + + for (uint8_t j = 1; j <= nb_port; j++) { + setPortFeature(PORT_POWER_FEATURE, j); + } + wait_ms(buf[5]*2); + + host->interruptRead(dev, int_in, buf, 1, false); + dev_connected = true; + return true; + } + + return false; +} + +void USBHostHub::disconnect() { + init(); +} + +/*virtual*/ void USBHostHub::setVidPid(uint16_t vid, uint16_t pid) +{ + // we don't check VID/PID for MSD driver +} + +/*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 +{ + if ((hub_intf == -1) && + (intf_class == HUB_CLASS) && + (intf_subclass == 0) && + (intf_protocol == 0)) { + hub_intf = intf_nb; + return true; + } + return false; +} + +/*virtual*/ bool USBHostHub::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used +{ + if (intf_nb == hub_intf) { + if ((type == INTERRUPT_ENDPOINT) && (dir == IN)) { + hub_device_found = true; + return true; + } + } + return false; +} + +void USBHostHub::deviceConnected(USBDeviceConnected * dev) { + device_children[dev->getPort() - 1] = dev; +} + +void USBHostHub::deviceDisconnected(USBDeviceConnected * dev) { + device_children[dev->getPort() - 1] = NULL; +} + +void USBHostHub::hubDisconnected() { + for (uint8_t i = 0; i < MAX_HUB_PORT; i++) { + if (device_children[i] != NULL) { + host->freeDevice(device_children[i]); + } + } +} + +void USBHostHub::rxHandler() { + uint32_t status; + if (int_in) { + if (int_in->getState() == USB_TYPE_IDLE) { + for (int port = 1; port <= nb_port; port++) { + status = getPortStatus(port); + USB_DBG("[hub handler hub: %d] status port %d [hub: %p]: 0x%X", dev->getHub(), port, dev, status); + + // if connection status has changed + if (status & C_PORT_CONNECTION) { + if (status & PORT_CONNECTION) { + USB_DBG("[hub handler hub: %d - port: %d] new device connected", dev->getHub(), port); + host->deviceConnected(dev->getHub() + 1, port, status & PORT_LOW_SPEED, this); + } else { + USB_DBG("[hub handler hub: %d - port: %d] device disconnected", dev->getHub(), port); + host->deviceDisconnected(dev->getHub() + 1, port, this, 0); + } + + clearPortFeature(C_PORT_CONNECTION_FEATURE, port); + } + + if (status & C_PORT_RESET) { + clearPortFeature(C_PORT_RESET_FEATURE, port); + } + + if (status & C_PORT_ENABLE) { + clearPortFeature(C_PORT_ENABLE_FEATURE, port); + } + + if ((status & PORT_OVER_CURRENT)) { + USB_ERR("OVER CURRENT DETECTED\r\n"); + clearPortFeature(PORT_OVER_CURRENT, port); + host->deviceDisconnected(dev->getHub() + 1, port, this, 0); + } + } + } + host->interruptRead(dev, int_in, buf, 1, false); + } +} + +void USBHostHub::portReset(uint8_t port) { + // reset port + uint32_t status; + USB_DBG("reset port %d on hub: %p [this: %p]", port, dev, this) + setPortFeature(PORT_RESET_FEATURE, port); +#if defined(TARGET_RZ_A1H) + Thread::wait(50); // Reset release waiting for Hi-Speed check. +#endif + while(1) { + status = getPortStatus(port); + if (status & (PORT_ENABLE | PORT_RESET)) + break; + if (status & PORT_OVER_CURRENT) { + USB_ERR("OVER CURRENT DETECTED\r\n"); + clearPortFeature(PORT_OVER_CURRENT, port); + host->deviceDisconnected(dev->getHub() + 1, port, this, 0); + break; + } + Thread::wait(10); + } +} + +void USBHostHub::setPortFeature(uint32_t feature, uint8_t port) { + host->controlWrite( dev, + USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE | USB_RECIPIENT_ENDPOINT, + SET_FEATURE, + feature, + port, + NULL, + 0); +} + +void USBHostHub::clearPortFeature(uint32_t feature, uint8_t port) { + host->controlWrite( dev, + USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE | USB_RECIPIENT_ENDPOINT, + CLEAR_FEATURE, + feature, + port, + NULL, + 0); +} + +uint32_t USBHostHub::getPortStatus(uint8_t port) { + uint32_t st; + host->controlRead( dev, + USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE | USB_RECIPIENT_ENDPOINT, + GET_STATUS, + 0, + port, + (uint8_t *)&st, + 4); + return st; +} + +#endif |