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ptp.cpp
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ptp.cpp
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/* 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 : [email protected]
*/
#include "ptpconst.h"
#include "ptp.h"
#include "ptpdebug.h"
void PTP::SetInitialState()
{
idSession = 0;
idTransaction = ~((transaction_id_t)0);
SetState(PTP_STATE_SESSION_NOT_OPENED);
}
void PTPStateHandlers::OnDeviceDisconnectedState
(PTP *ptp __attribute__((unused)))
{
}
void PTPStateHandlers::OnSessionNotOpenedState(PTP *ptp)
{
if (ptp->OpenSession() == PTP_RC_OK)
{
PTPTRACE("Session opened\r\n");
ptp->SetState(PTP_STATE_SESSION_OPENED);
}
}
void PTPStateHandlers::OnSessionOpenedState(PTP *ptp)
{
ptp->SetState(PTP_STATE_DEVICE_INITIALIZED);
}
void PTPStateHandlers::OnDeviceInitializedState(PTP *ptp __attribute__ ((unused)))
{
}
void PTPStateHandlers::OnDeviceNotRespondingState(PTP *ptp __attribute__ ((unused)))
{
}
void PTPStateHandlers::OnDeviceBusyState(PTP *ptp __attribute__ ((unused)))
{
}
void uint16_to_char(uint16_t integer, unsigned char *data)
{
data[0] = (integer & 0xff);
data[1] = ((integer >> 8) & 0xff);
}
void uint32_to_char(uint32_t integer, unsigned char *data)
{
data[0] = (integer & 0xff);
data[1] = ((integer >> 8) & 0xff);
data[2] = ((integer >> 16) & 0xff);
data[3] = ((integer >> 24) & 0xff);
}
const uint8_t PTP::epDataInIndex = 1;
const uint8_t PTP::epDataOutIndex = 2;
const uint8_t PTP::epInterruptIndex = 3;
PTP::PTP(USB *pusb, PTPStateHandlers *s) :
theState(0),
idTransaction(~((transaction_id_t)0)),
idSession(0),
stateMachine(s),
devAddress(0),
numConf(0),
pUsb(pusb)
{
// Control EP
epInfo[0].epAddr = 0;
epInfo[0].maxPktSize = 8;
epInfo[0].epAttribs = 0;
epInfo[0].bmNakPower = USB_NAK_MAX_POWER;
// Data-In EP
epInfo[1].epAddr = 0;
epInfo[1].maxPktSize = 8;
epInfo[1].epAttribs = 0;
epInfo[1].bmNakPower = USB_NAK_MAX_POWER;
// Data-Out EP
epInfo[2].epAddr = 0;
epInfo[2].maxPktSize = 8;
epInfo[2].epAttribs = 0;
epInfo[2].bmNakPower = USB_NAK_MAX_POWER;
// Interrupt EP
epInfo[3].epAddr = 0;
epInfo[3].maxPktSize = 8;
epInfo[3].epAttribs = 0;
epInfo[3].bmNakPower = USB_NAK_MAX_POWER;
if (pUsb) {
pUsb->RegisterDeviceClass(this);
}
};
uint8_t PTP::Init(uint8_t parent, uint8_t port, bool lowspeed
__attribute__ ((unused)))
{
const uint8_t constBufSize = 39;
uint8_t buf[constBufSize];
USB_DEVICE_DESCRIPTOR *udd =
reinterpret_cast<USB_DEVICE_DESCRIPTOR*>(buf);
USB_CONFIGURATION_DESCRIPTOR *ucd =
reinterpret_cast<USB_CONFIGURATION_DESCRIPTOR*>(buf);
// USB_INTERFACE_DESCRIPTOR *uid =
// reinterpret_cast<USB_INTERFACE_DESCRIPTOR*>(buf);
uint8_t rcode;
UsbDevice *p = NULL;
EpInfo *oldep_ptr = NULL;
uint8_t len = 0;
uint16_t cd_len = 0;
uint8_t num_of_conf; // number of configurations
// uint8_t num_of_intf; // number of interfaces
AddressPool &addrPool = pUsb->GetAddressPool();
PTPTRACE("PTP Init\r\n");
if (devAddress) {
return USB_ERROR_CLASS_INSTANCE_ALREADY_IN_USE;
}
// Get pointer to pseudo device with address 0 assigned
p = addrPool.GetUsbDevicePtr(0);
if (!p) {
PTPTRACE("dev.address not set\r\n");
return USB_ERROR_ADDRESS_NOT_FOUND_IN_POOL;
}
if (!p->epinfo) {
PTPTRACE("epinfo not set\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;
// Get device descriptor
rcode = pUsb->getDevDescr( 0, 0, 8, /* (uint8_t*) */ buf );
if (!rcode)
len = (buf[0] > 32) ? 32 : buf[0];
if( rcode )
{
// Restore p->epinfo
p->epinfo = oldep_ptr;
PTPTRACE("getDevDesc\r\n");
return rcode;
}
// Extract device class from device descriptor
// If device class is not a hub return
if ( udd->bDeviceClass != 0
&& udd->bDeviceClass != USB_CLASS_IMAGE
&& udd->bDeviceSubClass != 0x01
&& udd->bDeviceProtocol != 0x01)
return USB_DEV_CONFIG_ERROR_DEVICE_NOT_SUPPORTED;
// Allocate new address according to device class
devAddress = addrPool.AllocAddress(parent, false, port);
if (!devAddress)
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, devAddress );
if (rcode)
{
// Restore p->epinfo
p->epinfo = oldep_ptr;
addrPool.FreeAddress(devAddress);
devAddress = 0;
PTPTRACE2("setAddr:",rcode);
return rcode;
}
PTPTRACE2("Addr:", devAddress);
// Restore p->epinfo
p->epinfo = oldep_ptr;
if (len)
rcode = pUsb->getDevDescr( devAddress, 0, len, (uint8_t*)buf );
if(rcode)
goto FailGetDevDescr;
num_of_conf = udd->bNumConfigurations;
// Assign epInfo to epinfo pointer
rcode = pUsb->setEpInfoEntry(devAddress, 4, epInfo);
if (rcode)
goto FailSetDevTblEntry;
for (uint8_t i=0; i<num_of_conf; i++)
{
// Read configuration Descriptor in Order To Obtain Proper Configuration Value
rcode = pUsb->getConfDescr(devAddress, 0, 8, i, buf);
if (!rcode)
{
cd_len = ucd->wTotalLength;
cd_len = (cd_len > constBufSize) ? constBufSize : cd_len;
rcode = pUsb->getConfDescr(devAddress, 0, cd_len, i, buf);
}
if (rcode)
goto FailGetConfDescr;
USB_INTERFACE_DESCRIPTOR *pIntf = (USB_INTERFACE_DESCRIPTOR*)(buf + sizeof(USB_CONFIGURATION_DESCRIPTOR));
PTPTRACE2("NI:", ucd->bNumInterfaces);
if (ucd->bNumInterfaces > 0
&& pIntf->bInterfaceClass == 6 && pIntf->bInterfaceSubClass == 1 && pIntf->bInterfaceProtocol == 1)
{
FillEPRecords((USB_ENDPOINT_DESCRIPTOR*)(buf + sizeof(USB_CONFIGURATION_DESCRIPTOR) + sizeof(USB_INTERFACE_DESCRIPTOR)));
numConf = ucd->bConfigurationValue;
break;
}
} // for
if (!numConf)
return USB_DEV_CONFIG_ERROR_DEVICE_NOT_SUPPORTED;
// Set Configuration Value
rcode = pUsb->setConf(devAddress, 0, numConf);
if (rcode)
goto FailSetConfDescr;
// Set PTP state machine initial state
SetInitialState();
PTPTRACE("PTP configured\r\n");
bPollEnable = true;
return 0;
FailGetDevDescr:
PTPTRACE("getDevDescr:");
goto Fail;
FailSetDevTblEntry:
PTPTRACE("setDevTblEn:");
goto Fail;
FailGetConfDescr:
PTPTRACE("getConf:");
goto Fail;
FailSetConfDescr:
PTPTRACE("setConf:");
goto Fail;
Fail:
Serial.println(rcode, HEX);
return rcode;
}
void PTP::FillEPRecords(USB_ENDPOINT_DESCRIPTOR *pep)
{
uint8_t index;
for (uint8_t i=0; i<3; i++)
{
if ((pep[i].bmAttributes & 0x03) == 3)
index = epInterruptIndex;
else if ((pep[i].bmAttributes & 0x03) == 2 && (pep[i].bEndpointAddress & 0x80) == 0x80)
index = epDataInIndex;
else
index = epDataOutIndex;
epInfo[index].epAddr = (pep[i].bEndpointAddress & 0x0F);
epInfo[index].maxPktSize = (uint8_t)pep[i].wMaxPacketSize;
epInfo[index].epAttribs = 0;
epInfo[index].bmNakPower = (index == epInterruptIndex) ? 0 : USB_NAK_MAX_POWER;
}
}
uint8_t PTP::Release()
{
pUsb->GetAddressPool().FreeAddress(devAddress);
theState = PTP_STATE_DEVICE_DISCONNECTED;
stateMachine->OnDeviceDisconnectedState(this);
devAddress = 0;
idSession = 0;
idTransaction = ~((transaction_id_t)0);
return 0;
}
uint8_t PTP::Poll()
{
if (bPollEnable)
Task();
return 0; // kludge
};
void PTP::Task()
{
switch (theState)
{
//case PTP_STATE_DEVICE_DISCONNECTED:
// idSession = 0;
// idTransaction = ~((trasaction_id_t)0);
// if (stateMachine)
// stateMachine->OnDeviceDisconnectedState(this);
// break;
case PTP_STATE_SESSION_NOT_OPENED:
if (stateMachine)
stateMachine->OnSessionNotOpenedState(this);
break;
case PTP_STATE_SESSION_OPENED:
if (stateMachine)
stateMachine->OnSessionOpenedState(this);
break;
case PTP_STATE_DEVICE_INITIALIZED:
if (stateMachine)
stateMachine->OnDeviceInitializedState(this);
break;
case PTP_STATE_DEVICE_NOT_RESPONDING:
if (stateMachine)
stateMachine->OnDeviceNotRespondingState(this);
break;
case PTP_STATE_DEVICE_BUSY:
if (stateMachine)
stateMachine->OnDeviceBusyState(this);
break;
// Error state
default:
;
}
}
uint16_t PTP::Transaction(uint16_t opcode, OperFlags *flags, uint32_t *params = NULL, void *pVoid = NULL)
{
uint8_t rcode;
{ // send command block
// PTPTRACE("Transaction: Send Command\r\n");
uint8_t cmd[PTP_USB_BULK_HDR_LEN + 12]; // header + 3 uint32_t parameters
ZerroMemory(PTP_USB_BULK_HDR_LEN + 12, cmd);
// Make command PTP container header
uint16_to_char(PTP_USB_CONTAINER_COMMAND, (unsigned char*)(cmd + PTP_CONTAINER_CONTYPE_OFF)); // type
uint16_to_char(opcode, (unsigned char*)(cmd + PTP_CONTAINER_OPCODE_OFF)); // code
uint32_to_char(++idTransaction, (unsigned char*)(cmd + PTP_CONTAINER_TRANSID_OFF)); // transaction id
uint8_t n = flags->opParams; // number of parameters
uint8_t len;
if (params && *params ) {
*((uint8_t*)cmd) = PTP_USB_BULK_HDR_LEN + (n << 2);
len = PTP_USB_BULK_HDR_LEN + (n << 2);
for (uint32_t *p1 = (uint32_t*)(cmd + PTP_CONTAINER_PAYLOAD_OFF), *p2 = (uint32_t*)params; n--; p1++, p2++) {
uint32_to_char(*p2, (unsigned char*)p1);
}
}
else {
*((uint8_t*)cmd) = PTP_USB_BULK_HDR_LEN;
len = PTP_USB_BULK_HDR_LEN;
}
rcode = pUsb->outTransfer(devAddress, epInfo[epDataOutIndex].epAddr, len, cmd);
if (rcode) {
PTPTRACE2("Transaction: Command block send error", rcode);
return PTP_RC_GeneralError;
}
}
// return 0;
{ // send data block
uint8_t data[PTP_MAX_RX_BUFFER_LEN];
uint32_t* pd32 = reinterpret_cast<uint32_t*>(data);
if (flags->txOperation) {
if (flags->typeOfVoid && !pVoid)
{
PTPTRACE("Transaction: pVoid is NULL\n");
return PTP_RC_GeneralError;
}
ZerroMemory(PTP_MAX_RX_BUFFER_LEN, data);
uint32_t bytes_left = (flags->typeOfVoid == 3) ? PTP_USB_BULK_HDR_LEN + flags->dataSize :
((flags->typeOfVoid == 1) ? PTP_USB_BULK_HDR_LEN + ((PTPDataSupplier*)pVoid)->GetDataSize() : 12);
PTPTRACE2("Data block: Bytes Left ", bytes_left);
// Make data PTP container header
*pd32 = bytes_left;
uint16_to_char(PTP_USB_CONTAINER_DATA, (unsigned char*)(data + PTP_CONTAINER_CONTYPE_OFF)); // type
uint16_to_char(opcode, (unsigned char*)(data + PTP_CONTAINER_OPCODE_OFF)); // code
uint32_to_char(idTransaction, (unsigned char*)(data + PTP_CONTAINER_TRANSID_OFF)); // transaction id
uint16_t len = 0;
if (flags->typeOfVoid == 1) {
len = (bytes_left < PTP_MAX_RX_BUFFER_LEN) ? bytes_left : PTP_MAX_RX_BUFFER_LEN;
}
if (flags->typeOfVoid == 3) {
uint8_t *p1 = (data + PTP_USB_BULK_HDR_LEN);
uint8_t *p2 = (uint8_t*)pVoid;
for (uint8_t i=flags->dataSize; i; i--, p1++, p2++)
*p1 = *p2;
len = PTP_USB_BULK_HDR_LEN + flags->dataSize;
} // if (flags->typeOfVoid == 3...
bool first_time = true;
while (bytes_left) {
if (flags->typeOfVoid == 1)
((PTPDataSupplier*)pVoid)->GetData( (first_time) ? len - PTP_USB_BULK_HDR_LEN : len,
(first_time) ? (data + PTP_USB_BULK_HDR_LEN) : data);
rcode = pUsb->outTransfer(devAddress, epInfo[epDataOutIndex].epAddr, len, data);
if (rcode) {
PTPTRACE2("Transaction: Data block send error.", rcode);
return PTP_RC_GeneralError;
}
bytes_left -= len;
len = (bytes_left < PTP_MAX_RX_BUFFER_LEN) ? bytes_left : PTP_MAX_RX_BUFFER_LEN;
first_time = false;
} // while(bytes_left...
} // if (flags->txOperation...
// Because inTransfer does not return the actual number of bytes received, it should be
// calculated here.
uint32_t total = 0, data_off = 0; // Total PTP data packet size, Data offset
uint8_t inbuffer = 0; // Number of bytes read into buffer
uint16_t loops = 0; // Number of loops necessary to get all the data from device
// uint8_t timeoutcnt = 0;
while (1)
{
ZerroMemory(PTP_MAX_RX_BUFFER_LEN, data);
uint16_t read = PTP_MAX_RX_BUFFER_LEN;
rcode = pUsb->inTransfer(devAddress, epInfo[epDataInIndex].epAddr, &read, data);
if (rcode)
{
PTPTRACE("Fatal USB Error\r\n");
// in some cases NAK handling might be necessary
PTPTRACE2("Transaction: Response receive error 1", rcode);
return PTP_RC_GeneralError;
}
// This can occur in case of unsupported operation or successive response after data reception stage
if ((!loops || total == data_off) && *((uint16_t*)(data + PTP_CONTAINER_CONTYPE_OFF)) == PTP_USB_CONTAINER_RESPONSE)
{
uint16_t response = *((uint16_t*)(data + PTP_CONTAINER_OPCODE_OFF));
if (response == PTP_RC_OK && *pd32 > PTP_USB_BULK_HDR_LEN)
{
// number of params = (container length - 12) / 4
uint8_t n = (*pd32 - PTP_USB_BULK_HDR_LEN) >> 2;
// BUG: n should be checked!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
flags->rsParams = n;
for (uint32_t *p1 = (uint32_t*)(data + PTP_USB_BULK_HDR_LEN), *p2 = (uint32_t*)params; n; n--, p1++, p2++)
p2 = p1;
}
if (response != PTP_RC_OK)
{
PTPTRACE2("Transaction: Response receive error 2", response);
data_off = 0;
}
return response;
}
if (loops == 0)
{
total = *pd32;
inbuffer = (total < PTP_MAX_RX_BUFFER_LEN) ? (uint8_t)total : PTP_MAX_RX_BUFFER_LEN;
}
else
inbuffer = ((total - data_off) > PTP_MAX_RX_BUFFER_LEN) ? PTP_MAX_RX_BUFFER_LEN : (uint8_t)(total - data_off);
if (pVoid)
{
if (flags->typeOfVoid == 0x01)
((PTPReadParser*)pVoid)->Parse(inbuffer, data, (const uint32_t&)data_off);
if (flags->typeOfVoid == 0x03)
for (uint32_t i=0, j=data_off; i<inbuffer && j<flags->dataSize; i++, j++)
((uint8_t*)pVoid)[j] = data[i];
}
data_off += inbuffer;
loops ++;
//delay(10);
} // while(1)
} // end of scope
}
uint16_t PTP::EventCheck(PTPReadParser *pParser)
{
// uint8_t data[PTP_MAX_EV_BUFFER_LEN];
uint8_t data[sizeof(PTPUSBEventContainer)];
uint32_t* pd32 = reinterpret_cast<uint32_t*>(data);
uint8_t rcode;
// Because inTransfer does not return the actual number of bytes received, it should be
// calculated here.
uint32_t total = 0;
uint32_t data_off = 0;
uint8_t inbuffer = 0;
uint16_t loops = 0;
while (1) {
ZerroMemory(sizeof(PTPUSBEventContainer), data);
uint16_t read = sizeof(PTPUSBEventContainer);
rcode = pUsb->inTransfer(devAddress, epInfo[epInterruptIndex].epAddr, &read, data);
switch (rcode) {
case 0x00: // event data in incoming buffer
PTPTRACE2("EventCheck length: ", *data);
if (loops == 0) {
// first pass of the parser
total = *pd32; // total event length
// read from IN packet
inbuffer = (total < sizeof(PTPUSBEventContainer)) ?
(uint8_t)total : sizeof(PTPUSBEventContainer);
}
else {
inbuffer = ((total - data_off) > sizeof(PTPUSBEventContainer)) ? sizeof(PTPUSBEventContainer) : (uint8_t)(total - data_off);
}
if (pParser) {
pParser->Parse(inbuffer, data, (const uint32_t&)data_off);
}
data_off += inbuffer;
loops++;
delay(50);
return(PTP_RC_OK);
// In case of no event occurred
case 0x04: // NAK
PTPTRACE2("EventCheck NAK: ", rcode);
return PTP_EC_Undefined;
case 0xFF:
return PTP_EC_Undefined;
default:
// in case of a usb error
PTPTRACE2("EventCheck USB error: ", rcode);
return PTP_RC_GeneralError;
} // switch(rcode...
#if 0
if (loops == 0)
{
total = *pd32;
inbuffer = (total < PTP_MAX_EV_BUFFER_LEN) ? (uint8_t)total : PTP_MAX_EV_BUFFER_LEN;
}
else
inbuffer = ((total - data_off) > PTP_MAX_EV_BUFFER_LEN) ? PTP_MAX_EV_BUFFER_LEN : (uint8_t)(total - data_off);
if (pParser)
pParser->Parse(inbuffer, data, (const uint32_t&)data_off);
data_off += inbuffer;
loops ++;
delay(50);
#endif
} // while(1)
}
bool PTP::CheckEvent(uint8_t size, uint8_t *buf)
{
ZerroMemory(size, buf);
uint16_t read = size;
uint8_t rcode = pUsb->inTransfer(devAddress, epInfo[epInterruptIndex].epAddr, &read, buf);
// if no interrupts pending - return false
// there should be some error type checking involved i.e. timeout error
if (rcode)
return false;
return true;
}
bool PTP::EventWait(uint8_t size, uint8_t *event_buf, uint16_t timeout)
{
const uint16_t milisec = 0xA0; // must be polling interval for the interrupt pipe
bool occured = false;
while (!(occured = CheckEvent(size, event_buf)) && (timeout -= milisec))
delay(milisec);
return occured;
}
uint16_t PTP::OpenSession()
{
uint32_t params[1];
OperFlags flags = { 1, 0, 0, 0, 0, 0 };
idSession = 1;
idTransaction = ~((transaction_id_t)0);
params[0] = idSession;
delay(100); // kludge
while (1)
{
uint16_t ret = Transaction(PTP_OC_OpenSession, &flags, params);
if (ret == PTP_RC_SessionAlreadyOpened)
ret = CloseSession();
else
return ret;
}
}
uint16_t PTP::ResetDevice()
{
OperFlags flags = { 0, 0, 0, 0, 0, 0 };
return Transaction(PTP_OC_ResetDevice, &flags);
}
uint16_t PTP::GetNumObjects(uint32_t &retval,
uint32_t storage_id __attribute__ ((unused)),
uint16_t format __attribute__ ((unused)),
uint32_t assoc __attribute__ ((unused)))
{
uint16_t ptp_error = PTP_RC_GeneralError;
OperFlags flags = { 3, 1, 0, 0, 0, 0 };
uint32_t params[3];
if ( (ptp_error = Transaction(PTP_OC_GetNumObjects, &flags, params)) == PTP_RC_OK)
retval = params[0];
return ptp_error;
}
uint16_t PTP::GetObject(uint32_t handle, PTPReadParser *parser)
{
OperFlags flags = { 1, 0, 0, 1, 1, 0 };
uint32_t params[1];
params[0] = handle;
return Transaction(PTP_OC_GetObject, &flags, params, parser);
}
uint16_t PTP::GetThumb(uint32_t handle, PTPReadParser *parser)
{
OperFlags flags = { 1, 0, 0, 1, 1, 0 };
uint32_t params[1];
params[0] = handle;
return Transaction(PTP_OC_GetThumb, &flags, params, parser);
}
uint16_t PTP::DeleteObject(uint32_t handle, uint16_t format)
{
OperFlags flags = { 2, 0, 0, 0, 0, 0 };
uint32_t params[2];
params[0] = handle;
params[1] = (uint32_t)format;
return Transaction(PTP_OC_DeleteObject, &flags, params);
}
uint16_t PTP::SetObjectProtection(uint32_t handle, uint16_t attrib)
{
OperFlags flags = { 2, 0, 0, 0, 0, 0 };
uint32_t params[2];
params[0] = handle;
params[1] = (uint32_t)attrib;
return Transaction(PTP_OC_SetObjectProtection, &flags, params);
}
uint16_t PTP::MoveObject(uint32_t handle, uint32_t storage_id, uint32_t parent)
{
OperFlags flags = { 3, 0, 0, 0, 0, 0 };
uint32_t params[2];
params[0] = handle;
params[1] = storage_id;
params[2] = parent;
return Transaction(PTP_OC_MoveObject, &flags, params);
}
uint16_t PTP::CopyObject(uint32_t handle, uint32_t storage_id, uint32_t parent, uint32_t &new_handle)
{
uint16_t ptp_error = PTP_RC_GeneralError;
OperFlags flags = { 3, 1, 0, 0, 0, 0 };
uint32_t params[3];
params[0] = handle;
params[1] = storage_id;
params[2] = parent;
if ( (ptp_error = Transaction(PTP_OC_CopyObject, &flags, params)) == PTP_RC_OK)
new_handle = params[0];
return ptp_error;
}
uint16_t PTP::InitiateCapture(uint32_t storage_id, uint16_t format)
{
uint16_t ptp_error = PTP_RC_GeneralError;
OperFlags flags = { 2, 0, 0, 0, 0, 0 };
uint32_t params[2];
params[0] = storage_id;
params[1] = (uint32_t)format;
if ( (ptp_error = Transaction(PTP_OC_InitiateCapture, &flags, params)) == PTP_RC_OK)
{}
return ptp_error;
}
uint16_t PTP::InitiateOpenCapture(uint32_t storage_id, uint16_t format)
{
uint16_t ptp_error = PTP_RC_GeneralError;
OperFlags flags = { 2, 0, 0, 0, 0, 0 };
uint32_t params[2];
params[0] = storage_id;
params[1] = (uint32_t)format;
if ( (ptp_error = Transaction(PTP_OC_InitiateOpenCapture, &flags, params)) == PTP_RC_OK)
{}
return ptp_error;
}
uint16_t PTP::TerminateOpenCapture(uint32_t trans_id)
{
OperFlags flags = { 1, 0, 0, 0, 0, 0 };
uint32_t params[1];
params[0] = trans_id;
return Transaction(PTP_OC_TerminateOpenCapture, &flags, params);
}
uint16_t PTP::PowerDown()
{
OperFlags flags = { 0, 0, 0, 0, 0, 0 };
return Transaction(PTP_OC_PowerDown, &flags);
}
uint16_t PTP::SelfTest(uint16_t type = 0)
{
OperFlags flags = { 1, 0, 0, 0, 0, 0 };
uint32_t params[1];
params[0] = type;
return Transaction(PTP_OC_SelfTest, &flags, params);
}
uint16_t PTP::CloseSession()
{
uint16_t ptp_error = PTP_RC_GeneralError;
OperFlags flags = { 0, 0, 0, 0, 0, 0 };
if ( (ptp_error = Transaction(PTP_OC_CloseSession, &flags)) == PTP_RC_OK)
{
idSession = 0;
idTransaction = ~((transaction_id_t)0);
}
return ptp_error;
}
uint16_t PTP::GetDeviceInfo(PTPReadParser *parser)
{
OperFlags flags = { 0, 0, 0, 1, 1, 0 };
return Transaction(PTP_OC_GetDeviceInfo, &flags, NULL, parser);
}
uint16_t PTP::GetObjectInfo(uint32_t handle, PTPReadParser *parser)
{
OperFlags flags = { 1, 0, 0, 1, 1, 0 };
uint32_t params[1];
params[0] = handle;
return Transaction(PTP_OC_GetObjectInfo, &flags, params, parser);
}
uint16_t PTP::GetObjectPropValue(uint32_t handle, uint32_t prop, PTPReadParser* parser) {
OperFlags flags = { 2, 0, 0, 1, 1, 0 };
uint32_t params[2];
params[0] = handle;
params[1] = prop;
return Transaction(PTP_OC_GetObjectPropValue, &flags, params, parser);
}
uint16_t PTP::GetDevicePropDesc(const uint16_t pcode, PTPReadParser *parser)
{
OperFlags flags = { 1, 0, 0, 1, 1, 0 };
uint32_t params[1];
params[0] = (uint32_t)pcode;
return Transaction(PTP_OC_GetDevicePropDesc, &flags, params, parser);
}
uint16_t PTP::GetDevicePropValue(const uint16_t pcode, PTPReadParser *parser)
{
OperFlags flags = { 1, 0, 0, 1, 1, 0 };
uint32_t params[1];
params[0] = (uint32_t)pcode;
return Transaction(PTP_OC_GetDevicePropValue, &flags, params, parser);
}
uint16_t PTP::GetDevicePropValue(const uint16_t pcode, uint8_t &val)
{
uint16_t ptp_error = PTP_RC_GeneralError;
OperFlags flags = { 1, 0, 0, 0, 3, 13 };
uint32_t params[1];
uint8_t buf[13];
params[0] = (uint32_t)pcode;
if ( (ptp_error = Transaction(PTP_OC_GetDevicePropValue, &flags, params, buf)) == PTP_RC_OK)
val = buf[12];
return ptp_error;
}
uint16_t PTP::GetDevicePropValue(const uint16_t pcode, uint16_t &val)
{
uint16_t ptp_error = PTP_RC_GeneralError;
OperFlags flags = { 1, 0, 0, 0, 3, 14 };
uint32_t params[1];
uint16_t buf[7];
params[0] = pcode;
if ( (ptp_error = Transaction(PTP_OC_GetDevicePropValue, &flags, params, buf)) == PTP_RC_OK)
val = buf[6];
return ptp_error;
}
uint16_t PTP::GetDevicePropValue(const uint16_t pcode, uint32_t &val)
{
uint16_t ptp_error = PTP_RC_GeneralError;
OperFlags flags = { 1, 0, 0, 0, 3, 16 };
uint32_t params[1];
uint32_t buf[4];
params[0] = pcode;
if ( (ptp_error = Transaction(PTP_OC_GetDevicePropValue, &flags, params, buf)) == PTP_RC_OK)
val = buf[3];
return ptp_error;
}
uint16_t PTP::GetDevicePropValue(const uint16_t pcode, int8_t &val)
{
uint16_t ptp_error = PTP_RC_GeneralError;
OperFlags flags = { 1, 0, 0, 0, 3, 13 };
uint32_t params[1];
uint8_t buf[13];
params[0] = (uint32_t)pcode;
if ( (ptp_error = Transaction(PTP_OC_GetDevicePropValue, &flags, params, buf)) == PTP_RC_OK)
val = buf[12];
return ptp_error;
}
uint16_t PTP::GetDevicePropValue(const uint16_t pcode, int16_t &val)
{
uint16_t ptp_error = PTP_RC_GeneralError;
OperFlags flags = { 1, 0, 0, 0, 3, 14 };
uint32_t params[1];
uint16_t buf[7];
params[0] = pcode;
if ( (ptp_error = Transaction(PTP_OC_GetDevicePropValue, &flags, params, buf)) == PTP_RC_OK)
val = buf[6];
return ptp_error;
}
uint16_t PTP::GetDevicePropValue(const uint16_t pcode, int32_t &val)
{
uint16_t ptp_error = PTP_RC_GeneralError;
OperFlags flags = { 1, 0, 0, 0, 3, 16 };
uint32_t params[1];
uint32_t buf[4];
params[0] = pcode;
if ( (ptp_error = Transaction(PTP_OC_GetDevicePropValue, &flags, params, buf)) == PTP_RC_OK)
val = buf[3];
return ptp_error;
}
uint16_t PTP::SetDevicePropValue(uint16_t pcode, uint8_t val)
{
OperFlags flags = { 1, 0, 1, 1, 3, 1 };
uint32_t params[1];
uint8_t value;
params[0] = (uint32_t)pcode;
value = val;
return Transaction(PTP_OC_SetDevicePropValue, &flags, params, (void*)&value);
}
uint16_t PTP::SetDevicePropValue(uint16_t pcode, uint16_t val)
{
OperFlags flags = { 1, 0, 1, 1, 3, 2 };
uint32_t params[1];
uint16_t value;
params[0] = (uint32_t)pcode;
value = val;
return Transaction(PTP_OC_SetDevicePropValue, &flags, params, (void*)&value);
}
uint16_t PTP::SetDevicePropValue(uint16_t pcode, uint32_t val)
{
OperFlags flags = { 1, 0, 1, 1, 3, 4 };
uint32_t params[1];
uint32_t value;
params[0] = (uint32_t)pcode;
value = val;
return Transaction(PTP_OC_SetDevicePropValue, &flags, params, (void*)&value);