/**
* @brief CDC_InterfaceDeInit
* The function DeInit the Host Channels used for the CDC class.
* @param pdev: Selected device
* @param hdev: Selected device property
* @retval None
*/
void CDC_InterfaceDeInit ( USB_OTG_CORE_HANDLE *pdev,
void *phost)
{
if ( CDC_Machine.CDC_CommItf.hc_num_in)
{
USB_OTG_HC_Halt(pdev, CDC_Machine.CDC_CommItf.hc_num_in);
USBH_Free_Channel (pdev,CDC_Machine.CDC_CommItf.hc_num_in);
CDC_Machine.CDC_CommItf.hc_num_in = 0; /* Reset the Channel as Free */
}
if ( CDC_Machine.CDC_DataItf.hc_num_out)
{
USB_OTG_HC_Halt(pdev, CDC_Machine.CDC_DataItf.hc_num_out);
USBH_Free_Channel (pdev,CDC_Machine.CDC_DataItf.hc_num_out);
CDC_Machine.CDC_DataItf.hc_num_out = 0; /* Reset the Channel as Free */
}
if ( CDC_Machine.CDC_DataItf.hc_num_in)
{
USB_OTG_HC_Halt(pdev, CDC_Machine.CDC_DataItf.hc_num_in);
USBH_Free_Channel (pdev,CDC_Machine.CDC_DataItf.hc_num_in);
CDC_Machine.CDC_DataItf.hc_num_in = 0; /* Reset the Channel as Free */
}
// return USBH_OK;
}
/**
* @brief USBH_MSC_InterfaceDeInit
* De-Initialize interface by freeing host channels allocated to interface
* @param pdev: Selected device
* @param hdev: Selected device property
* @retval None
*/
void USBH_MSC_InterfaceDeInit ( USB_OTG_CORE_HANDLE *pdev,
void *phost)
{
if ( MSC_Machine.hc_num_out)
{
USB_OTG_HC_Halt(pdev, MSC_Machine.hc_num_out);
USBH_Free_Channel (pdev, MSC_Machine.hc_num_out);
MSC_Machine.hc_num_out = 0; /* Reset the Channel as Free */
}
if ( MSC_Machine.hc_num_in)
{
USB_OTG_HC_Halt(pdev, MSC_Machine.hc_num_in);
USBH_Free_Channel (pdev, MSC_Machine.hc_num_in);
MSC_Machine.hc_num_in = 0; /* Reset the Channel as Free */
}
}
/**
* @brief USBH_MSC_InterfaceDeInit
* De-Initialize interface by freeing host channels allocated to interface
* @param pdev: Selected device
* @param hdev: Selected device property
* @retval None
*/
void USBH_MSC_InterfaceDeInit ( USB_OTG_CORE_HANDLE *pdev,
USBH_DeviceProp_TypeDef *hdev)
{
if ( MSC_Machine.hc_num_out)
{
USB_OTG_HC_Halt((&USB_OTG_FS_dev), MSC_Machine.hc_num_out);
USBH_Free_Channel (pdev, MSC_Machine.hc_num_out);
MSC_Machine.hc_num_out = 0; /* Reset the Channel as Free */
}
if ( MSC_Machine.hc_num_in)
{
USB_OTG_HC_Halt((&USB_OTG_FS_dev), MSC_Machine.hc_num_in);
USBH_Free_Channel (pdev, MSC_Machine.hc_num_in);
MSC_Machine.hc_num_in = 0; /* Reset the Channel as Free */
}
}
USBH_Status USBH_Dev_DefaultCB_Task(USB_OTG_CORE_HANDLE *pcore , USBH_DEV *pdev)
{
// this is called periodically until the device state machine changes
char isDevRoot = pdev->Parent == 0;
if (isDevRoot == 0) {
// since this device now has an address
// we can let the hub handle new devices on another port
USBH_DEV* parentHub = (USBH_DEV*)pdev->Parent;
Hub_Data_t* hubData = (Hub_Data_t*)parentHub->Usr_Data;
hubData->port_busy = 0;
// this is a useless device, free the channel so another dev can use them
USBH_Free_Channel(pcore, &(pdev->Control.hc_num_in));
USBH_Free_Channel(pcore, &(pdev->Control.hc_num_out));
}
return USBH_OK;
}
/**
* @brief USBH_DeInit
* Re-Initialize Host
* @param None
* @retval status: USBH_Status
*/
USBH_Status USBH_DeInit(USB_OTG_CORE_HANDLE *pdev, USBH_HOST *phost)
{
/* Software Init */
phost->gState = HOST_IDLE;
phost->gStateBkp = HOST_IDLE;
phost->EnumState = ENUM_IDLE;
phost->RequestState = CMD_SEND;
phost->Control.state = CTRL_SETUP;
phost->Control.ep0size = USB_OTG_MAX_EP0_SIZE;
phost->device_prop.address = USBH_DEVICE_ADDRESS_DEFAULT;
phost->device_prop.speed = HPRT0_PRTSPD_FULL_SPEED;
USBH_Free_Channel (pdev, phost->Control.hc_num_in);
USBH_Free_Channel (pdev, phost->Control.hc_num_out);
return USBH_OK;
}
/**
* @brief USBH_HID_InterfaceDeInit
* The function DeInit the Host Channels used for the HID class.
* @param pdev: Selected device
* @param hdev: Selected device property
* @retval None
*/
void USBH_HID_InterfaceDeInit ( USB_OTG_CORE_HANDLE *pdev,
void *phost)
{
//USBH_HOST *pphost = phost;
if(HID_Machine.hc_num_in != 0x00)
{
USB_OTG_HC_Halt(pdev, HID_Machine.hc_num_in);
USBH_Free_Channel (pdev, HID_Machine.hc_num_in);
HID_Machine.hc_num_in = 0; /* Reset the Channel as Free */
}
if(HID_Machine.hc_num_out != 0x00)
{
USB_OTG_HC_Halt(pdev, HID_Machine.hc_num_out);
USBH_Free_Channel (pdev, HID_Machine.hc_num_out);
HID_Machine.hc_num_out = 0; /* Reset the Channel as Free */
}
start_toggle = 0;
}
// The function DeInit the Host Channels used for the HID class.
void USBH_HID_InterfaceDeInit ( USB_OTG_CORE_HANDLE *pdev,
void *phost)
{
HID_Machine_TypeDef *HID_Machine = &HID_Machines[pdev->cfg.coreID];
//USBH_HOST *pphost = phost;
if(HID_Machine->hc_num_in != 0x00)
{
USB_OTG_HC_Halt(pdev, HID_Machine->hc_num_in);
USBH_Free_Channel (pdev, HID_Machine->hc_num_in);
HID_Machine->hc_num_in = 0; /* Reset the Channel as Free */
}
if(HID_Machine->hc_num_out != 0x00)
{
USB_OTG_HC_Halt(pdev, HID_Machine->hc_num_out);
USBH_Free_Channel (pdev, HID_Machine->hc_num_out);
HID_Machine->hc_num_out = 0; /* Reset the Channel as Free */
}
start_toggles[pdev->cfg.coreID] = 0;
}
/**
* This function will free a pipe, it will release all resouces of the pipe.
*
* @param pipe the pipe handler to be free.
*
* @return the error code, RT_EOK on successfully.
*/
static rt_err_t susb_free_pipe(upipe_t pipe)
{
rt_uint8_t channel;
RT_ASSERT(pipe != RT_NULL);
RT_DEBUG_LOG(RT_DEBUG_USB, ("susb_free_pipe:%d\n",
pipe->ep.bEndpointAddress));
channel = (rt_uint32_t)pipe->user_data & 0xFF;
USBH_Free_Channel(&USB_OTG_Core, channel);
rt_free(pipe);
return RT_EOK;
}
void USBPT_Work()
{
if (USBPT_Has_Dev == 0)
{
if (HCD_IsDeviceConnected(&USB_OTG_Core_host) != 0)
{
USBPT_printf("USBPT Device Connecting \r\n");
if (USBH_Open_Channel( &USB_OTG_Core_host,
&(USBPT_Dev->Control.hc_num_in),
0x80,
USBPT_Dev->device_prop.address, // still 0 at this point
USBPT_Dev->device_prop.speed,
EP_TYPE_CTRL,
USBPT_Dev->Control.ep0size) == HC_OK
&&
USBH_Open_Channel( &USB_OTG_Core_host,
&(USBPT_Dev->Control.hc_num_out),
0x00,
USBPT_Dev->device_prop.address, // still 0 at this point
USBPT_Dev->device_prop.speed,
EP_TYPE_CTRL,
USBPT_Dev->Control.ep0size) == HC_OK
) {
DCD_DevConnect(&USB_OTG_Core_dev);
USBPT_Has_Dev = 1;
}
else
{
dbg_printf(DBGMODE_ERR, "USBPT Unable to allocate control EP HC \r\n");
}
}
else
{
return;
}
}
else
{
if (HCD_IsDeviceConnected(&USB_OTG_Core_host) == 0)
{
USBPT_printf("USBPT Device Disconnecting \r\n");
USBD_DeInit(&USB_OTG_Core_dev);
DCD_DevDisconnect(&USB_OTG_Core_dev);
USBPT_Has_Dev = 0;
for (uint8_t i = 0; i < USBPTH_MAX_LISTENERS; i++)
{
USBH_Free_Channel(&USB_OTG_Core_host, &(USBPTH_Listeners[i].hc));
}
USBH_Free_Channel(&USB_OTG_Core_host, &(USBPT_Dev->Control.hc_num_out));
USBH_Free_Channel(&USB_OTG_Core_host, &(USBPT_Dev->Control.hc_num_in));
}
}
for (uint8_t i = 0; i < USBPTH_MAX_LISTENERS; i++)
{
USBPTH_HC_EP_t* pl = &USBPTH_Listeners[i];
int8_t hc = USBPTH_Listeners[i].hc;
if (hc >= 0) // if listener is actually allocated
{
USBH_EpDesc_TypeDef* epDesc = pl->epDesc;
uint8_t epnum = epDesc->bEndpointAddress;
uint8_t epType = 0;
USBPT_GeneralInDataLen = epDesc->wMaxPacketSize;
// try to send read tokens only on even frames
if (USB_OTG_IsEvenFrame(&USB_OTG_Core_host) == 0) continue;
dbg_trace();
// attempt to start the read, check the read type first
if ((epDesc->bmAttributes & USB_EP_TYPE_INTR) == USB_EP_TYPE_INTR) {
epType = EP_TYPE_INTR;
USBH_InterruptReceiveData(&USB_OTG_Core_host, USBPT_GeneralInData, USBPT_GeneralInDataLen, hc);
}
else if ((epDesc->bmAttributes & USB_EP_TYPE_INTR) == USB_EP_TYPE_BULK) {
epType = EP_TYPE_BULK;
USBH_BulkReceiveData(&USB_OTG_Core_host, USBPT_GeneralInData, USBPT_GeneralInDataLen, hc);
}
else if ((epDesc->bmAttributes & USB_EP_TYPE_INTR) == USB_EP_TYPE_ISOC) {
epType = EP_TYPE_ISOC;
USBH_IsocReceiveData(&USB_OTG_Core_host, USBPT_GeneralInData, USBPT_GeneralInDataLen, hc);
}
// now we wait for a reply, or maybe there isn't one
USBH_Status status;
char sent = 0;
delay_1ms_cnt = 100;
do
{
URB_STATE us = HCD_GetURB_State(&USB_OTG_Core_host, hc);
if (us == URB_DONE)
{
// data was indeed received
// print it to the serial port for monitoring
USBPT_printf("USBPT:IN:EP0x%02X:", epnum);
for (uint16_t c = 0; c < USBPT_GeneralInDataLen; c++) {
USBPT_printf(" 0x%02X", USBPT_GeneralInData[c]);
}
USBPT_printf("\r\n");
// relay the data to the host
DCD_EP_Tx(&USB_OTG_Core_dev, epnum, USBPT_GeneralInData, USBPT_GeneralInDataLen);
sent = 1;
break;
}
else if (us == URB_ERROR) {
dbg_printf(DBGMODE_ERR, "DataIn Error on EP 0x%02X \r\n", epnum);
break;
}
else if (us == URB_STALL) {
dbg_printf(DBGMODE_ERR, "DataIn Stalled EP 0x%02X \r\n", epnum);
break;
}
else if (us == URB_NOTREADY) {
// NAK, no data
break;
}
}
while (delay_1ms_cnt > 0);
if (delay_1ms_cnt == 0) {
dbg_printf(DBGMODE_ERR, "DataIn Read Timed Out EP 0x%02X \r\n", epnum);
}
}
}
}
uint8_t USBPTD_DataOut (void *pcore , uint8_t epnum)
{
USB_OTG_CORE_HANDLE* pcore_ = (USB_OTG_CORE_HANDLE*)pcore;
DCD_DEV* pdev = &(pcore_->dev);
uint8_t* data;
uint16_t wLength;
if (epnum == 0x00)
{ // CTRL REQ
wLength = USBPT_CtrlDataLen;
data = USBPT_CtrlData;
}
else
{
wLength = pdev->out_ep[epnum].xfer_count;
data = pdev->out_ep[epnum].xfer_buff;
}
// print to monitor
USBPT_printf("USBPT:OUT:EP0x%02X:", epnum);
for (uint16_t i = 0; i < wLength; i++) {
USBPT_printf(" 0x%02X", data[i]);
}
USBPT_printf("\r\n");
if (epnum == 0x00)
{ // CTRL REQ
USBH_Status status;
delay_1ms_cnt = 100;
// wait for transfer complete
do
{
status = USBH_CtlReq(&USB_OTG_Core_host, USBPT_Dev, USBPT_CtrlData , USBPT_CtrlDataLen );
if (status == USBH_OK || status == USBH_FAIL || status == USBH_STALL || status == USBH_NOT_SUPPORTED) {
break;
}
else
{
status = USBH_HandleControl(&USB_OTG_Core_host, USBPT_Dev);
if (status == USBH_FAIL || status == USBH_STALL || status == USBH_NOT_SUPPORTED) {
break;
}
}
}
while (delay_1ms_cnt > 0);
if (delay_1ms_cnt == 0) {
dbg_printf(DBGMODE_ERR, "USBPTD_DataOut timed out while sending to device, status: 0x%04X \r\n", status);
USBD_CtlError(pcore , 0);
return USBD_FAIL;
}
else if (status != USBH_OK) {
dbg_printf(DBGMODE_ERR, "USBPTD_DataOut failed to send to device, status: 0x%04X \r\n", status);
USBD_CtlError(pcore , 0);
return USBD_FAIL;
}
else { // everything is OK
USBD_CtlSendStatus(pcore);
return USBD_OK;
}
}
else
{
wLength = pdev->out_ep[epnum].xfer_count;
data = pdev->out_ep[epnum].xfer_buff;
// allocate memory needed
if (USBPT_GeneralOutData != 0) free(USBPT_GeneralOutData);
USBPT_GeneralOutDataLen = wLength;
USBPT_GeneralOutData = malloc(wLength);
memcpy(USBPT_GeneralOutData, data, USBPT_GeneralOutDataLen);
USBH_EpDesc_TypeDef* epDesc = 0;
for (uint8_t i = 0; i < USBPTH_OutEPCnt; i++)
{
// look for appropriate EP
if (USBPTH_OutEP[i]->bEndpointAddress == epnum) {
epDesc = USBPTH_OutEP[i];
break;
}
}
if (epDesc != 0) // EP found
{
uint8_t epType = 0;
int8_t hc = -1;
if ((epDesc->bmAttributes & USB_EP_TYPE_INTR) == USB_EP_TYPE_INTR) {
epType = EP_TYPE_INTR;
}
else if ((epDesc->bmAttributes & USB_EP_TYPE_INTR) == USB_EP_TYPE_BULK) {
epType = EP_TYPE_BULK;
}
else if ((epDesc->bmAttributes & USB_EP_TYPE_INTR) == USB_EP_TYPE_ISOC) {
epType = EP_TYPE_ISOC;
}
// dynamically allocate host channel for use
if (USBH_Open_Channel( &USB_OTG_Core_host,
&hc,
epnum,
USBPT_Dev->device_prop.address,
USBPT_Dev->device_prop.speed,
epType,
epDesc->wMaxPacketSize) == HC_OK)
{
// try to only send on even frame
volatile uint32_t syncTries = 0x7FFFFFFF;
while (USB_OTG_IsEvenFrame(&USB_OTG_Core_host) == 0 && syncTries--) __NOP();
// send using appropriate method
switch (epType)
{
case EP_TYPE_INTR:
USBH_InterruptSendData(&USB_OTG_Core_host, USBPT_GeneralOutData, USBPT_GeneralOutDataLen, hc);
break;
case EP_TYPE_BULK:
USBH_BulkSendData(&USB_OTG_Core_host, USBPT_GeneralOutData, USBPT_GeneralOutDataLen, hc);
break;
case EP_TYPE_ISOC:
USBH_IsocSendData(&USB_OTG_Core_host, USBPT_GeneralOutData, USBPT_GeneralOutDataLen, hc);
break;
default:
break;
}
// wait until done sending
USBH_Status status;
delay_1ms_cnt = 100;
do
{
URB_STATE us = HCD_GetURB_State(&USB_OTG_Core_host, hc);
if (us == URB_DONE) {
break;
}
else if (us == URB_ERROR) {
dbg_printf(DBGMODE_ERR, "USBPTD_DataOut Send Error on EP 0x%02X \r\n", epnum);
DCD_EP_Stall(pcore, epnum);
break;
}
else if (us == URB_STALL) {
dbg_printf(DBGMODE_ERR, "USBPTD_DataOut Stalled EP 0x%02X \r\n", epnum);
DCD_EP_Stall(pcore, epnum);
break;
}
}
while (delay_1ms_cnt > 0);
if (delay_1ms_cnt == 0) {
dbg_printf(DBGMODE_ERR, "USBPTD_DataOut Send Timed Out EP 0x%02X \r\n", epnum);
}
// free the channel to be used by something else later
USBH_Free_Channel(&USB_OTG_Core_host, &hc);
}
else
{
dbg_printf(DBGMODE_ERR, "USBPTD_DataOut Failed to Alloc HC for EP 0x%02X \r\n", epnum);
}
}
else
{
dbg_printf(DBGMODE_ERR, "USBPTD_DataOut No Such EP 0x%02X \r\n", epnum);
}
return USBD_OK;
}
return USBD_OK;
}
/*
* This is broken. We need to enumerate differently.
* It causes major problems with several devices if detected in an unexpected order.
*
*
* Oleg - I wouldn't do anything before the newly connected device is considered sane.
* i.e.(delays are not indicated for brevity):
* 1. reset
* 2. GetDevDescr();
* 3a. If ACK, continue with allocating address, addressing, etc.
* 3b. Else reset again, count resets, stop at some number (5?).
* 4. When max.number of resets is reached, toggle power/fail
* If desired, this could be modified by performing two resets with GetDevDescr() in the middle - however, from my experience, if a device answers to GDD()
* it doesn't need to be reset again
* New steps proposal:
* 1: get address pool instance. exit on fail
* 2: pUsb->getDevDescr(0, 0, constBufSize, (uint8_t*)buf). exit on fail.
* 3: bus reset, 100ms delay
* 4: set address
* 5: pUsb->setEpInfoEntry(bAddress, 1, epInfo), exit on fail
* 6: while (configurations) {
* for(each configuration) {
* for (each driver) {
* 6a: Ask device if it likes configuration. Returns 0 on OK.
* If successful, the driver configured device.
* The driver now owns the endpoints, and takes over managing them.
* The following will need codes:
* Everything went well, instance consumed, exit with success.
* Instance already in use, ignore it, try next driver.
* Not a supported device, ignore it, try next driver.
* Not a supported configuration for this device, ignore it, try next driver.
* Could not configure device, fatal, exit with fail.
* }
* }
* }
* 7: for(each driver) {
* 7a: Ask device if it knows this VID/PID. Acts exactly like 6a, but using VID/PID
* 8: if we get here, no driver likes the device plugged in, so exit failure.
*
*/
uint8_t USB::Configuring(uint8_t parent, uint8_t port, bool lowspeed) {
//uint8_t bAddress = 0;
//printf("Configuring: parent = %i, port = %i\r\n", parent, port);
uint8_t devConfigIndex;
uint8_t rcode = 0;
uint8_t buf[sizeof (USB_DEVICE_DESCRIPTOR)];
UsbDevice *p = NULL;
EpInfo *oldep_ptr = NULL;
EpInfo epInfo;
USB_OTG_CORE_HANDLE *pdev = coreConfig;
epInfo.epAddr = 0;
epInfo.maxPktSize = 8;
epInfo.epAttribs = 0;
epInfo.bmNakPower = USB_NAK_MAX_POWER;
// assume:
// HC0 for control - out
// HC1 for control - in
//uint8_t hcnum = USBH_GetFreeChannel(pdev);
//if(hcnum > 1) {
// USBH_Free_Channel(pdev, epInfo.hcNumOut);
// USBH_Free_Channel(pdev, epInfo.hcNumIn);
//}
USBH_Free_Channel(pdev, 0);
USBH_Free_Channel(pdev, 1);
epInfo.hcNumOut = USBH_Alloc_Channel(pdev, 0x00); // ep_addr = 0
epInfo.hcNumIn = USBH_Alloc_Channel(pdev, 0x80);
USBH_Open_Channel(pdev, epInfo.hcNumOut, 0x0, (lowspeed)?bmLOWSPEED:bmFULLSPEED, EP_TYPE_CTRL, 0x8);
USBH_Open_Channel(pdev, epInfo.hcNumIn, 0x0, (lowspeed)?bmLOWSPEED:bmFULLSPEED, EP_TYPE_CTRL, 0x8);
printf("\nControl Pipe: out = %d (0), in = %d (1)", epInfo.hcNumOut, epInfo.hcNumIn);
delay_ms(1000);
AddressPool &addrPool = GetAddressPool();
// Get pointer to pseudo device with address 0 assigned
p = addrPool.GetUsbDevicePtr(0);
if (!p) {
printf("Configuring error: USB_ERROR_ADDRESS_NOT_FOUND_IN_POOL\r\n");
return USB_ERROR_ADDRESS_NOT_FOUND_IN_POOL;
}
// 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 = getDevDescr(0, 0, 8, (uint8_t*)buf); // 8 should be enough, sizeof (USB_DEVICE_DESCRIPTOR)
printf("\nControl - Got 1st 8 bytes desc");
// Extract Max Packet Size from the device descriptor
epInfo.maxPktSize = (uint8_t)((USB_DEVICE_DESCRIPTOR*)buf)->bMaxPacketSize0;
//USB::USBH_Modify_Channel (pdev, epInfo.hcNumOut, 0, 0, 0, 0, epInfo.maxPktSize);
//USB::USBH_Modify_Channel (pdev, epInfo.hcNumIn, 0, 0, 0, 0, epInfo.maxPktSize);
// Restore p->epinfo
// keep CtrlXfer's hcNumOut/In in p->epinfo. p->epinfo = oldep_ptr;
if (rcode) {
printf("Configuring error: Can't get USB_DEVICE_DESCRIPTOR\r\n");
return rcode;
}
// to-do?
// Allocate new address according to device class
//bAddress = addrPool.AllocAddress(parent, false, port);
//if (!bAddress)
// return USB_ERROR_OUT_OF_ADDRESS_SPACE_IN_POOL;
rcode = getDevDescr(0, 0, sizeof(USB_DEVICE_DESCRIPTOR), (uint8_t*)buf);
printf("\nControl - Got 2nd 18 bytes desc.");
uint16_t vid = (uint16_t)((USB_DEVICE_DESCRIPTOR*)buf)->idVendor;
uint16_t pid = (uint16_t)((USB_DEVICE_DESCRIPTOR*)buf)->idProduct;
uint8_t klass = ((USB_DEVICE_DESCRIPTOR*)buf)->bDeviceClass;
// Attempt to configure if VID/PID or device class matches with a driver
for (devConfigIndex = 0; devConfigIndex < USB_NUMDEVICES; devConfigIndex++) {
if (!devConfig[devConfigIndex]) continue; // no driver
if (devConfig[devConfigIndex]->GetAddress()) continue; // consumed
if (devConfig[devConfigIndex]->VIDPIDOK(vid, pid)) {
rcode = AttemptConfig(devConfigIndex, parent, port, lowspeed);
break;
} else if (devConfig[devConfigIndex]->DEVCLASSOK(klass)) {
rcode = AttemptConfig(devConfigIndex, parent, port, lowspeed);
if (!rcode) break;
}
}
if (devConfigIndex < USB_NUMDEVICES) {
return rcode;
}
// blindly attempt to configure
for (devConfigIndex = 0; devConfigIndex < USB_NUMDEVICES; devConfigIndex++) {
if (!devConfig[devConfigIndex]) continue;
if (devConfig[devConfigIndex]->GetAddress()) continue; // consumed
rcode = AttemptConfig(devConfigIndex, parent, port, lowspeed);
//printf("ERROR ENUMERATING %2.2x\r\n", rcode);
if (!(rcode == USB_DEV_CONFIG_ERROR_DEVICE_NOT_SUPPORTED || rcode == USB_ERROR_CLASS_INSTANCE_ALREADY_IN_USE)) {
// in case of an error dev_index should be reset to 0
// in order to start from the very beginning the
// next time the program gets here
//if (rcode != USB_DEV_CONFIG_ERROR_DEVICE_INIT_INCOMPLETE)
// devConfigIndex = 0;
return rcode;
}
}
// if we get here that means that the device class is not supported by any of registered classes
rcode = DefaultAddressing(parent, port, lowspeed);
return rcode;
}
/* USB main task. Performs enumeration/cleanup */
void USB::Task(USB_OTG_CORE_HANDLE *pdev) //USB state machine
{
uint8_t rcode;
uint8_t tmpdata;
static unsigned long delay = 0;
bool lowspeed = false;
STM32F2::Task();
tmpdata = getVbusState();
/* modify USB task state if Vbus changed */
switch (tmpdata) {
case SE1: //illegal state
usb_task_state = USB_DETACHED_SUBSTATE_ILLEGAL;
lowspeed = false;
break;
case SE0: //disconnected
if ((usb_task_state & USB_STATE_MASK) != USB_STATE_DETACHED)
usb_task_state = USB_DETACHED_SUBSTATE_INITIALIZE;
lowspeed = false;
break;
case LSHOST:
// if ((usb_task_state & USB_STATE_MASK) == USB_STATE_DETACHED) {
lowspeed = true;
// }
case FSHOST: //attached
if ((usb_task_state & USB_STATE_MASK) == USB_STATE_DETACHED) {
delay = millis() + USB_SETTLE_DELAY;
usb_task_state = USB_ATTACHED_SUBSTATE_SETTLE;
STM_EVAL_LEDToggle(LED1);
}
break;
}// switch( tmpdata
for (uint8_t i = 0; i < USB_NUMDEVICES; i++)
if (devConfig[i])
rcode = devConfig[i]->Poll();
switch (usb_task_state) {
case USB_DETACHED_SUBSTATE_INITIALIZE:
init();
for (uint8_t i = 0; i < USB_NUMDEVICES; i++)
if (devConfig[i])
rcode = devConfig[i]->Release();
usb_task_state = USB_DETACHED_SUBSTATE_WAIT_FOR_DEVICE;
break;
case USB_DETACHED_SUBSTATE_WAIT_FOR_DEVICE: //just sit here
break;
case USB_DETACHED_SUBSTATE_ILLEGAL: //just sit here
break;
case USB_ATTACHED_SUBSTATE_SETTLE: //settle time for just attached device
if (delay < millis())
usb_task_state = USB_ATTACHED_SUBSTATE_RESET_DEVICE;
break;
case USB_ATTACHED_SUBSTATE_RESET_DEVICE:
STM_EVAL_LEDToggle(LED1);
//regWr(rHCTL, bmBUSRST); //issue bus reset
// what if i want to reset the specified device? (need to survey usb hub feature later)
pdev->host.SofHits = 0;
HCD_ResetPort();
//usb_task_state = USB_ATTACHED_SUBSTATE_WAIT_RESET_COMPLETE;
// the HCD_ResetPort() function will take care of a complete bus reset. so skip next phase.
usb_task_state = USB_ATTACHED_SUBSTATE_WAIT_SOF;
break;
/* case USB_ATTACHED_SUBSTATE_WAIT_RESET_COMPLETE:
if ((regRd(rHCTL) & bmBUSRST) == 0) {
tmpdata = regRd(rMODE) | bmSOFKAENAB; //start SOF generation
regWr(rMODE, tmpdata);
usb_task_state = USB_ATTACHED_SUBSTATE_WAIT_SOF;
//delay = millis() + 20; //20ms wait after reset per USB spec
}
break;*/
case USB_ATTACHED_SUBSTATE_WAIT_SOF: //todo: change check order
if(pdev->host.port_need_reset) {
usb_task_state = USB_ATTACHED_SUBSTATE_RESET_DEVICE;
pdev->host.port_need_reset = 0;
printf("\nLS Dev, reset again");
break;
}
STM_EVAL_LEDToggle(LED1);
//if (regRd(rHIRQ) & bmFRAMEIRQ) {
if(pdev->host.SofHits) {
//when first SOF received _and_ 20ms has passed we can continue
usb_task_state = USB_ATTACHED_SUBSTATE_WAIT_RESET;
delay = millis() + 20;
}
break;
case USB_ATTACHED_SUBSTATE_WAIT_RESET:
if (delay < millis()) {
usb_task_state = USB_STATE_CONFIGURING;
}
break;
case USB_STATE_CONFIGURING:
STM_EVAL_LEDToggle(LED1);
//Serial.print("\r\nConf.LS: ");
//Serial.println(lowspeed, HEX);
printf("\nTODO:Support all 8 USB pipe?");
rcode = Configuring(0, 0, lowspeed);
if (rcode) {
if (rcode != USB_DEV_CONFIG_ERROR_DEVICE_INIT_INCOMPLETE) {
usb_error = rcode;
usb_task_state = USB_STATE_ERROR;
}
} else
usb_task_state = USB_STATE_RUNNING;
break;
case USB_STATE_RUNNING:
break;
case USB_STATE_ERROR:
//MAX3421E::Init();
AddressPool &addrPool = GetAddressPool();
// Get pointer to pseudo device with address 0 assigned
UsbDevice *p = addrPool.GetUsbDevicePtr(0);
USBH_Free_Channel(pdev, p->epinfo->hcNumOut);
USBH_Free_Channel(pdev, p->epinfo->hcNumIn);
break;
} // switch( usb_task_state )
}
/**
* @brief This function send data to the device.
* @param fileName : name of the file
* @retval the filestate will be returned
* FS_SUCCESS : returned to the parent function when the file length become to zero
*/
void CDC_StopReception( USB_OTG_CORE_HANDLE *pdev)
{
RX_Enabled = 0;
USB_OTG_HC_Halt(pdev, CDC_Machine.CDC_DataItf.hc_num_in);
USBH_Free_Channel (pdev,CDC_Machine.CDC_DataItf.hc_num_in);
}