diff options
Diffstat (limited to 'tmk_core/protocol/usb_hid/USB_Host_Shield_2.0/cdcftdi.cpp')
| m--------- | tmk_core/protocol/usb_hid/USB_Host_Shield_2.0 | 0 | ||||
| -rw-r--r-- | tmk_core/protocol/usb_hid/USB_Host_Shield_2.0/cdcftdi.cpp | 334 |
2 files changed, 334 insertions, 0 deletions
diff --git a/tmk_core/protocol/usb_hid/USB_Host_Shield_2.0 b/tmk_core/protocol/usb_hid/USB_Host_Shield_2.0 deleted file mode 160000 -Subproject 7c2e6c1bcdcc22cfdbd82edd9d8fc4c4276ead4 diff --git a/tmk_core/protocol/usb_hid/USB_Host_Shield_2.0/cdcftdi.cpp b/tmk_core/protocol/usb_hid/USB_Host_Shield_2.0/cdcftdi.cpp new file mode 100644 index 0000000000..80d21d16ec --- /dev/null +++ b/tmk_core/protocol/usb_hid/USB_Host_Shield_2.0/cdcftdi.cpp @@ -0,0 +1,334 @@ +/* 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 "cdcftdi.h" + +const uint8_t FTDI::epDataInIndex = 1; +const uint8_t FTDI::epDataOutIndex = 2; +const uint8_t FTDI::epInterruptInIndex = 3; + +FTDI::FTDI(USB *p, FTDIAsyncOper *pasync) : +pAsync(pasync), +pUsb(p), +bAddress(0), +bNumEP(1), +wFTDIType(0) { + for(uint8_t i = 0; i < FTDI_MAX_ENDPOINTS; i++) { + epInfo[i].epAddr = 0; + epInfo[i].maxPktSize = (i) ? 0 : 8; + epInfo[i].epAttribs = 0; + epInfo[i].bmNakPower = (i==epDataInIndex) ? USB_NAK_NOWAIT: USB_NAK_MAX_POWER; + } + if(pUsb) + pUsb->RegisterDeviceClass(this); +} + +uint8_t FTDI::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 + + AddressPool &addrPool = pUsb->GetAddressPool(); + + USBTRACE("FTDI 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), buf); + + // Restore p->epinfo + p->epinfo = oldep_ptr; + + if(rcode) + goto FailGetDevDescr; + if(udd->idVendor != FTDI_VID || udd->idProduct != FTDI_PID) + return USB_DEV_CONFIG_ERROR_DEVICE_NOT_SUPPORTED; + + // Save type of FTDI chip + wFTDIType = 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, 0xFF, 0xFF, CP_MASK_COMPARE_ALL> 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; + + USBTRACE2("NumEP:", bNumEP); + + // 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; + + rcode = pAsync->OnInit(this); + + if(rcode) + goto FailOnInit; + + USBTRACE("FTDI configured\r\n"); + + bPollEnable = 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:"); + +Fail: + NotifyFail(rcode); +#endif + Release(); + return rcode; +} + +void FTDI::EndpointXtract(uint8_t conf, uint8_t iface, uint8_t alt, uint8_t proto, const USB_ENDPOINT_DESCRIPTOR *pep) { + ErrorMessage<uint8_t > (PSTR("Conf.Val"), conf); + ErrorMessage<uint8_t > (PSTR("Iface Num"), iface); + ErrorMessage<uint8_t > (PSTR("Alt.Set"), alt); + + bConfNum = conf; + + uint8_t index; + + if((pep->bmAttributes & 0x03) == 3 && (pep->bEndpointAddress & 0x80) == 0x80) + index = epInterruptInIndex; + else + if((pep->bmAttributes & 0x02) == 2) + index = ((pep->bEndpointAddress & 0x80) == 0x80) ? epDataInIndex : epDataOutIndex; + else + return; + + // Fill in the endpoint info structure + epInfo[index].epAddr = (pep->bEndpointAddress & 0x0F); + epInfo[index].maxPktSize = (uint8_t)pep->wMaxPacketSize; + epInfo[index].epAttribs = 0; + + bNumEP++; + + PrintEndpointDescriptor(pep); +} + +uint8_t FTDI::Release() { + pUsb->GetAddressPool().FreeAddress(bAddress); + + bAddress = 0; + bNumEP = 1; + qNextPollTime = 0; + bPollEnable = false; + return pAsync->OnRelease(this); +} + +uint8_t FTDI::Poll() { + uint8_t rcode = 0; + + //if (!bPollEnable) + // return 0; + + //if (qNextPollTime <= millis()) + //{ + // USB_HOST_SERIAL.println(bAddress, HEX); + + // qNextPollTime = millis() + 100; + //} + return rcode; +} + +uint8_t FTDI::SetBaudRate(uint32_t baud) { + uint16_t baud_value, baud_index = 0; + uint32_t divisor3; + + divisor3 = 48000000 / 2 / baud; // divisor shifted 3 bits to the left + + if(wFTDIType == FT232AM) { + if((divisor3 & 0x7) == 7) + divisor3++; // round x.7/8 up to x+1 + + baud_value = divisor3 >> 3; + divisor3 &= 0x7; + + if(divisor3 == 1) baud_value |= 0xc000; + else // 0.125 + if(divisor3 >= 4) baud_value |= 0x4000; + else // 0.5 + if(divisor3 != 0) baud_value |= 0x8000; // 0.25 + if(baud_value == 1) baud_value = 0; /* special case for maximum baud rate */ + } else { + static const unsigned char divfrac [8] = {0, 3, 2, 0, 1, 1, 2, 3}; + static const unsigned char divindex[8] = {0, 0, 0, 1, 0, 1, 1, 1}; + + baud_value = divisor3 >> 3; + baud_value |= divfrac [divisor3 & 0x7] << 14; + baud_index = divindex[divisor3 & 0x7]; + + /* Deal with special cases for highest baud rates. */ + if(baud_value == 1) baud_value = 0; + else // 1.0 + if(baud_value == 0x4001) baud_value = 1; // 1.5 + } + USBTRACE2("baud_value:", baud_value); + USBTRACE2("baud_index:", baud_index); + return pUsb->ctrlReq(bAddress, 0, bmREQ_FTDI_OUT, FTDI_SIO_SET_BAUD_RATE, baud_value & 0xff, baud_value >> 8, baud_index, 0, 0, NULL, NULL); +} + +uint8_t FTDI::SetModemControl(uint16_t signal) { + return pUsb->ctrlReq(bAddress, 0, bmREQ_FTDI_OUT, FTDI_SIO_MODEM_CTRL, signal & 0xff, signal >> 8, 0, 0, 0, NULL, NULL); +} + +uint8_t FTDI::SetFlowControl(uint8_t protocol, uint8_t xon, uint8_t xoff) { + return pUsb->ctrlReq(bAddress, 0, bmREQ_FTDI_OUT, FTDI_SIO_SET_FLOW_CTRL, xon, xoff, protocol << 8, 0, 0, NULL, NULL); +} + +uint8_t FTDI::SetData(uint16_t databm) { + return pUsb->ctrlReq(bAddress, 0, bmREQ_FTDI_OUT, FTDI_SIO_SET_DATA, databm & 0xff, databm >> 8, 0, 0, 0, NULL, NULL); +} + +uint8_t FTDI::RcvData(uint16_t *bytes_rcvd, uint8_t *dataptr) { + return pUsb->inTransfer(bAddress, epInfo[epDataInIndex].epAddr, bytes_rcvd, dataptr); +} + +uint8_t FTDI::SndData(uint16_t nbytes, uint8_t *dataptr) { + return pUsb->outTransfer(bAddress, epInfo[epDataOutIndex].epAddr, nbytes, dataptr); +} + +void FTDI::PrintEndpointDescriptor(const USB_ENDPOINT_DESCRIPTOR* ep_ptr) { + Notify(PSTR("Endpoint descriptor:"), 0x80); + Notify(PSTR("\r\nLength:\t\t"), 0x80); + D_PrintHex<uint8_t > (ep_ptr->bLength, 0x80); + Notify(PSTR("\r\nType:\t\t"), 0x80); + D_PrintHex<uint8_t > (ep_ptr->bDescriptorType, 0x80); + Notify(PSTR("\r\nAddress:\t"), 0x80); + D_PrintHex<uint8_t > (ep_ptr->bEndpointAddress, 0x80); + Notify(PSTR("\r\nAttributes:\t"), 0x80); + D_PrintHex<uint8_t > (ep_ptr->bmAttributes, 0x80); + Notify(PSTR("\r\nMaxPktSize:\t"), 0x80); + D_PrintHex<uint16_t > (ep_ptr->wMaxPacketSize, 0x80); + Notify(PSTR("\r\nPoll Intrv:\t"), 0x80); + D_PrintHex<uint8_t > (ep_ptr->bInterval, 0x80); + Notify(PSTR("\r\n"), 0x80); +} |