mirror of
https://github.com/felis/USB_Host_Shield_2.0.git
synced 2024-03-22 11:31:26 +01:00
333 lines
10 KiB
C++
333 lines
10 KiB
C++
/* 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 "cdcacm.h"
|
|
|
|
const uint8_t ACM::epDataInIndex = 1;
|
|
const uint8_t ACM::epDataOutIndex = 2;
|
|
const uint8_t ACM::epInterruptInIndex = 3;
|
|
|
|
ACM::ACM(USBHost *p, CDCAsyncOper *pasync) :
|
|
pUsb(p),
|
|
pAsync(pasync),
|
|
bAddress(0),
|
|
bControlIface(0),
|
|
bDataIface(0),
|
|
bNumEP(1),
|
|
qNextPollTime(0),
|
|
bPollEnable(false),
|
|
ready(false) {
|
|
_enhanced_status = enhanced_features(); // Set up features
|
|
for(uint8_t i = 0; i < ACM_MAX_ENDPOINTS; i++) {
|
|
epInfo[i].epAddr = 0;
|
|
epInfo[i].maxPktSize = (i) ? 0 : 8;
|
|
epInfo[i].bmSndToggle = 0;
|
|
epInfo[i].bmRcvToggle = 0;
|
|
epInfo[i].bmNakPower = (i == epDataInIndex) ? USB_NAK_NOWAIT : USB_NAK_MAX_POWER;
|
|
|
|
}
|
|
if(pUsb)
|
|
pUsb->RegisterDeviceClass(this);
|
|
}
|
|
|
|
uint8_t ACM::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;
|
|
UsbDeviceDefinition *p = NULL;
|
|
EpInfo *oldep_ptr = NULL;
|
|
uint8_t num_of_conf; // number of configurations
|
|
|
|
AddressPool &addrPool = pUsb->GetAddressPool();
|
|
|
|
USBTRACE("ACM 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, constBufSize, (uint8_t*)buf);
|
|
|
|
// Restore p->epinfo
|
|
p->epinfo = oldep_ptr;
|
|
|
|
if(rcode)
|
|
goto FailGetDevDescr;
|
|
|
|
// 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++) {
|
|
ConfigDescParser< USB_CLASS_COM_AND_CDC_CTRL,
|
|
CDC_SUBCLASS_ACM,
|
|
CDC_PROTOCOL_ITU_T_V_250,
|
|
CP_MASK_COMPARE_CLASS |
|
|
CP_MASK_COMPARE_SUBCLASS |
|
|
CP_MASK_COMPARE_PROTOCOL > CdcControlParser(this);
|
|
|
|
ConfigDescParser<USB_CLASS_CDC_DATA, 0, 0,
|
|
CP_MASK_COMPARE_CLASS> CdcDataParser(this);
|
|
|
|
rcode = pUsb->getConfDescr(bAddress, 0, i, &CdcControlParser);
|
|
|
|
if(rcode)
|
|
goto FailGetConfDescr;
|
|
|
|
rcode = pUsb->getConfDescr(bAddress, 0, i, &CdcDataParser);
|
|
|
|
if(rcode)
|
|
goto FailGetConfDescr;
|
|
|
|
if(bNumEP > 1)
|
|
break;
|
|
} // for
|
|
|
|
if(bNumEP < 4)
|
|
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;
|
|
|
|
// Set up features status
|
|
_enhanced_status = enhanced_features();
|
|
half_duplex(false);
|
|
autoflowRTS(false);
|
|
autoflowDSR(false);
|
|
autoflowXON(false);
|
|
wide(false); // Always false, because this is only available in custom mode.
|
|
rcode = pAsync->OnInit(this);
|
|
|
|
if(rcode)
|
|
goto FailOnInit;
|
|
|
|
USBTRACE("ACM configured\r\n");
|
|
|
|
ready = true;
|
|
|
|
//bPollEnable = true;
|
|
|
|
//USBTRACE("Poll enabled\r\n");
|
|
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;
|
|
}
|
|
|
|
void ACM::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].bmSndToggle = 0;
|
|
epInfo[index].bmRcvToggle = 0;
|
|
|
|
bNumEP++;
|
|
|
|
PrintEndpointDescriptor(pep);
|
|
}
|
|
|
|
uint8_t ACM::Release() {
|
|
ready = false;
|
|
pUsb->GetAddressPool().FreeAddress(bAddress);
|
|
|
|
bControlIface = 0;
|
|
bDataIface = 0;
|
|
bNumEP = 1;
|
|
|
|
bAddress = 0;
|
|
qNextPollTime = 0;
|
|
bPollEnable = false;
|
|
return 0;
|
|
}
|
|
|
|
uint8_t ACM::Poll() {
|
|
uint8_t rcode = 0;
|
|
|
|
if(!bPollEnable)
|
|
return 0;
|
|
|
|
return rcode;
|
|
}
|
|
|
|
uint8_t ACM::RcvData(uint16_t *bytes_rcvd, uint8_t *dataptr) {
|
|
return pUsb->inTransfer(bAddress, epInfo[epDataInIndex].epAddr, bytes_rcvd, dataptr);
|
|
}
|
|
|
|
uint8_t ACM::SndData(uint16_t nbytes, uint8_t *dataptr) {
|
|
return pUsb->outTransfer(bAddress, epInfo[epDataOutIndex].epAddr, nbytes, dataptr);
|
|
}
|
|
|
|
uint8_t ACM::SetCommFeature(uint16_t fid, uint8_t nbytes, uint8_t *dataptr) {
|
|
return ( pUsb->ctrlReq(bAddress, 0, bmREQ_CDCOUT, CDC_SET_COMM_FEATURE, (fid & 0xff), (fid >> 8), bControlIface, nbytes, nbytes, dataptr, NULL));
|
|
}
|
|
|
|
uint8_t ACM::GetCommFeature(uint16_t fid, uint8_t nbytes, uint8_t *dataptr) {
|
|
return ( pUsb->ctrlReq(bAddress, 0, bmREQ_CDCIN, CDC_GET_COMM_FEATURE, (fid & 0xff), (fid >> 8), bControlIface, nbytes, nbytes, dataptr, NULL));
|
|
}
|
|
|
|
uint8_t ACM::ClearCommFeature(uint16_t fid) {
|
|
return ( pUsb->ctrlReq(bAddress, 0, bmREQ_CDCOUT, CDC_CLEAR_COMM_FEATURE, (fid & 0xff), (fid >> 8), bControlIface, 0, 0, NULL, NULL));
|
|
}
|
|
|
|
uint8_t ACM::SetLineCoding(const LINE_CODING *dataptr) {
|
|
return ( pUsb->ctrlReq(bAddress, 0, bmREQ_CDCOUT, CDC_SET_LINE_CODING, 0x00, 0x00, bControlIface, sizeof (LINE_CODING), sizeof (LINE_CODING), (uint8_t*)dataptr, NULL));
|
|
}
|
|
|
|
uint8_t ACM::GetLineCoding(LINE_CODING *dataptr) {
|
|
return ( pUsb->ctrlReq(bAddress, 0, bmREQ_CDCIN, CDC_GET_LINE_CODING, 0x00, 0x00, bControlIface, sizeof (LINE_CODING), sizeof (LINE_CODING), (uint8_t*)dataptr, NULL));
|
|
}
|
|
|
|
uint8_t ACM::SetControlLineState(uint8_t state) {
|
|
return ( pUsb->ctrlReq(bAddress, 0, bmREQ_CDCOUT, CDC_SET_CONTROL_LINE_STATE, state, 0, bControlIface, 0, 0, NULL, NULL));
|
|
}
|
|
|
|
uint8_t ACM::SendBreak(uint16_t duration) {
|
|
return ( pUsb->ctrlReq(bAddress, 0, bmREQ_CDCOUT, CDC_SEND_BREAK, (duration & 0xff), (duration >> 8), bControlIface, 0, 0, NULL, NULL));
|
|
}
|
|
|
|
void ACM::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);
|
|
}
|