Used in Live Traffic Update Nokia LCD Display Project
Fork of NetServices by
drv/umtsstick/UMTSStick.cpp
- Committer:
- rrajan8
- Date:
- 2013-03-06
- Revision:
- 8:92b57208ab99
- Parent:
- 0:ac1725ba162c
File content as of revision 8:92b57208ab99:
/* Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com) Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include "netCfg.h" #if NET_UMTS #include "UMTSStick.h" #define __DEBUG #include "dbg/dbg.h" UMTSStick::UMTSStick() : m_host(), m_pDev(NULL) { } UMTSStick::~UMTSStick() { } UMTSStickErr UMTSStick::getSerial(UsbSerial** ppUsbSerial) { m_host.init(); UMTSStickErr rc; rc = waitForDevice(); if(rc) return rc; //Device is now enumerated, read table uint16_t vid = m_pDev->getVid(); uint16_t pid = m_pDev->getPid(); DBG("Configuration set: vid:%04x pid:%04x\n", vid, pid); bool handled = false; bool cdfs = false; const UMTSSwitchingInfo* pInfo; for(int i = 0; i < UMTS_SWITCHING_COUNT; i++) { pInfo = &UMTSwitchingTable[i]; if( !checkDeviceState(pInfo, &cdfs) ) { handled = true; break; } } //for(int i = 0; i < UMTS_SWITCHING_COUNT; i++) if(!handled) { DBG("Don't know this device!\n"); return UMTSERR_NOTIMPLEMENTED; } //Check if the device is in CDFS mode, in this case switch if(cdfs) { DBG("Switching the device by sending a magic packet\n"); rc = switchMode(pInfo); if(rc) return rc; DBG("Now wait for device to reconnect\n"); m_host.releaseDevice(m_pDev); //Wait for device to reconnect wait(3); rc = waitForDevice(); if(rc) return rc; } rc = findSerial(ppUsbSerial); if(rc) return rc; return UMTSERR_OK; } UMTSStickErr UMTSStick::waitForDevice() { bool ready = false; while(!ready) { while(!m_host.devicesCount()) {} wait(1); if(m_host.devicesCount()) ready = true; } wait(2); //Wait for device to be initialized if(!m_host.devicesCount()) return UMTSERR_DISCONNECTED; m_pDev = m_host.getDevice(0); while(!m_pDev->enumerated()) { m_host.poll(); if(!m_host.devicesCount()) return UMTSERR_DISCONNECTED; } return UMTSERR_OK; } UMTSStickErr UMTSStick::checkDeviceState(const UMTSSwitchingInfo* pInfo, bool* pCdfs) { uint16_t vid = m_pDev->getVid(); uint16_t pid = m_pDev->getPid(); bool handled = false; if( (vid == pInfo->cdfsVid) && (pid == pInfo->cdfsPid) ) { DBG("Match on dongles list\n"); if( !pInfo->targetClass ) //No specific interface to check, vid/pid couple is specific to CDFS mode { DBG("Found device in CDFS mode\n"); handled = true; *pCdfs = true; } else //if( !pInfo->targetClass ) { //Has to check if there is an interface of class targetClass byte* desc = NULL; int c = 0; while( !m_pDev->getInterfaceDescriptor(1, c++, &desc) ) { if( desc[5] == pInfo->targetClass ) { DBG("Found device in Serial mode\n"); handled = true; *pCdfs = false; break; } } if(!handled) { //All interfaces were tried, so we are in CDFS mode DBG("Found device in CDFS mode\n"); handled = true; *pCdfs = true; } } //if( !pInfo->targetClass ) } //if( (vid == pInfo->cdfsVid) && (pid == pInfo->cdfsPid) ) else { //Try every vid/pid couple of the serial list for( int i = 0; i < 16 ; i++) { if(!pInfo->serialPidList[i]) break; if( (pInfo->serialVid == vid) && (pInfo->serialPidList[i] == pid) ) { DBG("Found device in Serial mode\n"); handled = true; *pCdfs = false; break; } } } //if( (vid == pInfo->cdfsVid) && (pid == pInfo->cdfsPid) ) if(!handled) return UMTSERR_NOTFOUND; return UMTSERR_OK; } UMTSStickErr UMTSStick::switchMode(const UMTSSwitchingInfo* pInfo) { if(!pInfo->huaweiPacket) //Send SCSI packet on first bulk ep { //Find first bulk ep byte* desc = NULL; int c = 0; UsbEndpoint *pEpOut = NULL; while( !m_pDev->getInterfaceDescriptor(1, c++, &desc) ) { byte* p = desc; int epNum = 0; p = p + p[0]; //Move to next descriptor (which should be an ep descriptor) while (epNum < desc[4]) //Eps count in this if { if (p[1] != USB_DESCRIPTOR_TYPE_ENDPOINT) break; if( (p[3] == 0x02) && !(p[2] & 0x80) ) //Bulk endpoint, out { DBG("Found bulk ep %02x\n", p[2]); pEpOut = new UsbEndpoint( m_pDev, p[2], false, USB_BULK, *((uint16_t*)&p[4]) ); break; } p = p + p[0]; //Move to next ep desc epNum++; } if(pEpOut) break; } if(!pEpOut) return UMTSERR_NOTFOUND; //Send SCSI packet DBG("Sending SCSI Packet to switch\n"); byte ramCdfsBuf[31]; memcpy(ramCdfsBuf, pInfo->cdfsPacket, 31); pEpOut->transfer((volatile byte*)ramCdfsBuf, 31); while(pEpOut->status() == USBERR_PROCESSING); int ret = pEpOut->status(); if((ret < 0) && (ret !=USBERR_DISCONNECTED)) //Packet was not transfered { DBG("Usb error %d\n", ret); delete pEpOut; return UMTSERR_USBERR; } delete pEpOut; } else { UsbErr usbErr; //Send the Huawei-specific control packet usbErr = m_pDev->controlSend(0, 0x03, 1, 0, NULL, 0); if(usbErr && (usbErr != USBERR_DISCONNECTED)) return UMTSERR_USBERR; } DBG("The stick should be switching in serial mode now\n"); return UMTSERR_OK; } UMTSStickErr UMTSStick::findSerial(UsbSerial** ppUsbSerial) { byte* desc = NULL; int c = 0; int epOut = 0; int epIn = 0; while( !m_pDev->getInterfaceDescriptor(1, c++, &desc) ) { byte* p = desc; int epNum = 0; DBG("Interface of type %02x\n", desc[5]); if(desc[5] != 0xFF) //Not a serial-like if continue; p = p + p[0]; //Move to next descriptor (which should be an ep descriptor) while (epNum < desc[4]) //Eps count in this if { if (p[1] == USB_DESCRIPTOR_TYPE_ENDPOINT) { if( (p[3] == 0x02) && !(p[2] & 0x80) && !epOut ) //Bulk endpoint, out { DBG("Found bulk out ep %02x of payload size %04x\n", p[2], *((uint16_t*)&p[4])); epOut = p[2] & 0x7F; } if( (p[3] == 0x02) && (p[2] & 0x80) && !epIn ) //Bulk endpoint, in { DBG("Found bulk in ep %02x of payload size %04x\n", p[2], *((uint16_t*)&p[4])); epIn = p[2] & 0x7F; } if(epOut && epIn) break; } p = p + p[0]; //Move to next ep desc epNum++; } if(epOut && epIn) break; } if(!epOut || !epIn) return UMTSERR_NOTFOUND; DBG("Endpoints found, create serial object\n"); *ppUsbSerial = new UsbSerial(m_pDev, epIn, epOut); DBG("UsbSerial object created\n"); return UMTSERR_OK; } #endif