diff options
Diffstat (limited to 'lib/usbhost/USB_Host_Shield_2.0/cdcprolific.cpp')
| -rw-r--r-- | lib/usbhost/USB_Host_Shield_2.0/cdcprolific.cpp | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/lib/usbhost/USB_Host_Shield_2.0/cdcprolific.cpp b/lib/usbhost/USB_Host_Shield_2.0/cdcprolific.cpp new file mode 100644 index 0000000000..eceb1df9f3 --- /dev/null +++ b/lib/usbhost/USB_Host_Shield_2.0/cdcprolific.cpp @@ -0,0 +1,247 @@ +/* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved. + +This software may be distributed and modified under the terms of the GNU +General Public License version 2 (GPL2) as published by the Free Software +Foundation and appearing in the file GPL2.TXT included in the packaging of +this file. Please note that GPL2 Section 2[b] requires that all works based +on this software must also be made publicly available under the terms of +the GPL2 ("Copyleft"). + +Contact information +------------------- + +Circuits At Home, LTD +Web : http://www.circuitsathome.com +e-mail : support@circuitsathome.com + */ +#include "cdcprolific.h" + +PL2303::PL2303(USB *p, CDCAsyncOper *pasync) : +ACM(p, pasync), +wPLType(0) { +} + +uint8_t PL2303::Init(uint8_t parent, uint8_t port, bool lowspeed) { + const uint8_t constBufSize = sizeof (USB_DEVICE_DESCRIPTOR); + + uint8_t buf[constBufSize]; + USB_DEVICE_DESCRIPTOR * udd = reinterpret_cast<USB_DEVICE_DESCRIPTOR*>(buf); + uint8_t rcode; + UsbDevice *p = NULL; + EpInfo *oldep_ptr = NULL; + uint8_t num_of_conf; // number of configurations +#ifdef PL2303_COMPAT + enum pl2303_type pltype = unknown; +#endif + + AddressPool &addrPool = pUsb->GetAddressPool(); + + USBTRACE("PL Init\r\n"); + + if(bAddress) + return USB_ERROR_CLASS_INSTANCE_ALREADY_IN_USE; + + // Get pointer to pseudo device with address 0 assigned + p = addrPool.GetUsbDevicePtr(0); + + if(!p) + return USB_ERROR_ADDRESS_NOT_FOUND_IN_POOL; + + if(!p->epinfo) { + USBTRACE("epinfo\r\n"); + return USB_ERROR_EPINFO_IS_NULL; + } + + // Save old pointer to EP_RECORD of address 0 + oldep_ptr = p->epinfo; + + // Temporary assign new pointer to epInfo to p->epinfo in order to avoid toggle inconsistence + p->epinfo = epInfo; + + p->lowspeed = lowspeed; + + // Get device descriptor + rcode = pUsb->getDevDescr(0, 0, sizeof (USB_DEVICE_DESCRIPTOR), (uint8_t*)buf); + + // Restore p->epinfo + p->epinfo = oldep_ptr; + + if(rcode) + goto FailGetDevDescr; + + if(udd->idVendor != PL_VID && CHECK_PID(udd->idProduct)) + return USB_DEV_CONFIG_ERROR_DEVICE_NOT_SUPPORTED; + + /* determine chip variant */ +#ifdef PL2303_COMPAT + if(udd->bDeviceClass == 0x02 ) + pltype = type_0; + else if(udd->bMaxPacketSize0 == 0x40 ) + pltype = rev_HX; + else if(udd->bDeviceClass == 0x00) + pltype = type_1; + else if(udd->bDeviceClass == 0xff) + pltype = type_1; +#endif + + // Save type of PL chip + wPLType = udd->bcdDevice; + + // Allocate new address according to device class + bAddress = addrPool.AllocAddress(parent, false, port); + + if(!bAddress) + return USB_ERROR_OUT_OF_ADDRESS_SPACE_IN_POOL; + + // Extract Max Packet Size from the device descriptor + epInfo[0].maxPktSize = udd->bMaxPacketSize0; + + // Assign new address to the device + rcode = pUsb->setAddr(0, 0, bAddress); + + if(rcode) { + p->lowspeed = false; + addrPool.FreeAddress(bAddress); + bAddress = 0; + USBTRACE2("setAddr:", rcode); + return rcode; + } + + USBTRACE2("Addr:", bAddress); + + p->lowspeed = false; + + p = addrPool.GetUsbDevicePtr(bAddress); + + if(!p) + return USB_ERROR_ADDRESS_NOT_FOUND_IN_POOL; + + p->lowspeed = lowspeed; + + num_of_conf = udd->bNumConfigurations; + + // Assign epInfo to epinfo pointer + rcode = pUsb->setEpInfoEntry(bAddress, 1, epInfo); + + if(rcode) + goto FailSetDevTblEntry; + + USBTRACE2("NC:", num_of_conf); + + for(uint8_t i = 0; i < num_of_conf; i++) { + HexDumper<USBReadParser, uint16_t, uint16_t> HexDump; + ConfigDescParser < 0xFF, 0, 0, CP_MASK_COMPARE_CLASS> confDescrParser(this); + + rcode = pUsb->getConfDescr(bAddress, 0, i, &HexDump); + + if(rcode) + goto FailGetConfDescr; + + rcode = pUsb->getConfDescr(bAddress, 0, i, &confDescrParser); + + if(rcode) + goto FailGetConfDescr; + + if(bNumEP > 1) + break; + } // for + + if(bNumEP < 2) + return USB_DEV_CONFIG_ERROR_DEVICE_NOT_SUPPORTED; + + // Assign epInfo to epinfo pointer + rcode = pUsb->setEpInfoEntry(bAddress, bNumEP, epInfo); + + USBTRACE2("Conf:", bConfNum); + + // Set Configuration Value + rcode = pUsb->setConf(bAddress, 0, bConfNum); + + if(rcode) + goto FailSetConfDescr; + +#ifdef PL2303_COMPAT + /* Shamanic dance - sending Prolific init data as-is */ + vendorRead( 0x84, 0x84, 0, buf ); + vendorWrite( 0x04, 0x04, 0 ); + vendorRead( 0x84, 0x84, 0, buf ); + vendorRead( 0x83, 0x83, 0, buf ); + vendorRead( 0x84, 0x84, 0, buf ); + vendorWrite( 0x04, 0x04, 1 ); + vendorRead( 0x84, 0x84, 0, buf); + vendorRead( 0x83, 0x83, 0, buf); + vendorWrite( 0, 0, 1 ); + vendorWrite( 1, 0, 0 ); + if( pltype == rev_HX ) { + vendorWrite( 2, 0, 0x44 ); + vendorWrite( 0x06, 0x06, 0 ); // From W7 init + } + else { + vendorWrite( 2, 0, 0x24 ); + } + /* Shamanic dance end */ +#endif + /* Calling post-init callback */ + rcode = pAsync->OnInit(this); + + if(rcode) + goto FailOnInit; + + USBTRACE("PL configured\r\n"); + + //bPollEnable = true; + ready = true; + return 0; + +FailGetDevDescr: +#ifdef DEBUG_USB_HOST + NotifyFailGetDevDescr(); + goto Fail; +#endif + +FailSetDevTblEntry: +#ifdef DEBUG_USB_HOST + NotifyFailSetDevTblEntry(); + goto Fail; +#endif + +FailGetConfDescr: +#ifdef DEBUG_USB_HOST + NotifyFailGetConfDescr(); + goto Fail; +#endif + +FailSetConfDescr: +#ifdef DEBUG_USB_HOST + NotifyFailSetConfDescr(); + goto Fail; +#endif + +FailOnInit: +#ifdef DEBUG_USB_HOST + USBTRACE("OnInit:"); +#endif + +#ifdef DEBUG_USB_HOST +Fail: + NotifyFail(rcode); +#endif + Release(); + return rcode; +} + +//uint8_t PL::Poll() +//{ +// uint8_t rcode = 0; +// +// //if (!bPollEnable) +// // return 0; +// +// //if (qNextPollTime <= millis()) +// //{ +// // USB_HOST_SERIAL.println(bAddress, HEX); +// +// // qNextPollTime = millis() + 100; +// //} +// return rcode; +//} |