/**
* @brief USBH_HandleEnum
* This function includes the complete enumeration process
* @param pdev: Selected device
* @retval USBH_Status
*/
static USBH_Status USBH_HandleEnum(USB_OTG_CORE_HANDLE *pdev, USBH_HOST *phost)
{
USBH_Status Status = USBH_BUSY;
uint8_t Local_Buffer[64];
switch (phost->EnumState)
{
case ENUM_IDLE:
/* Get Device Desc for only 1st 8 bytes : To get EP0 MaxPacketSize */
if ( USBH_Get_DevDesc(pdev , phost, 8) == USBH_OK)
{
phost->Control.ep0size = phost->device_prop.Dev_Desc.bMaxPacketSize;
/* Issue Reset */
HCD_ResetPort(pdev);
phost->EnumState = ENUM_GET_FULL_DEV_DESC;
/* modify control channels configuration for MaxPacket size */
USBH_Modify_Channel (pdev,
phost->Control.hc_num_out,
0,
0,
0,
phost->Control.ep0size);
USBH_Modify_Channel (pdev,
phost->Control.hc_num_in,
0,
0,
0,
phost->Control.ep0size);
}
break;
case ENUM_GET_FULL_DEV_DESC:
/* Get FULL Device Desc */
if ( USBH_Get_DevDesc(pdev, phost, USB_DEVICE_DESC_SIZE)\
== USBH_OK)
{
/* user callback for device descriptor available */
phost->usr_cb->DeviceDescAvailable(&phost->device_prop.Dev_Desc);
phost->EnumState = ENUM_SET_ADDR;
}
break;
case ENUM_SET_ADDR:
/* set address */
if ( USBH_SetAddress(pdev, phost, USBH_DEVICE_ADDRESS) == USBH_OK)
{
USB_OTG_BSP_mDelay(2);
phost->device_prop.address = USBH_DEVICE_ADDRESS;
/* user callback for device address assigned */
phost->usr_cb->DeviceAddressAssigned();
phost->EnumState = ENUM_GET_CFG_DESC;
/* modify control channels to update device address */
USBH_Modify_Channel (pdev,
phost->Control.hc_num_in,
phost->device_prop.address,
0,
0,
0);
USBH_Modify_Channel (pdev,
phost->Control.hc_num_out,
phost->device_prop.address,
0,
0,
0);
}
break;
case ENUM_GET_CFG_DESC:
/* get standard configuration descriptor */
if ( USBH_Get_CfgDesc(pdev,
phost,
USB_CONFIGURATION_DESC_SIZE) == USBH_OK)
{
phost->EnumState = ENUM_GET_FULL_CFG_DESC;
}
break;
case ENUM_GET_FULL_CFG_DESC:
/* get FULL config descriptor (config, interface, endpoints) */
if (USBH_Get_CfgDesc(pdev,
phost,
phost->device_prop.Cfg_Desc.wTotalLength) == USBH_OK)
{
/* User callback for configuration descriptors available */
phost->usr_cb->ConfigurationDescAvailable(&phost->device_prop.Cfg_Desc,
phost->device_prop.Itf_Desc,
phost->device_prop.Ep_Desc[0]);
phost->EnumState = ENUM_GET_MFC_STRING_DESC;
}
break;
case ENUM_GET_MFC_STRING_DESC:
if (phost->device_prop.Dev_Desc.iManufacturer != 0)
{ /* Check that Manufacturer String is available */
if ( USBH_Get_StringDesc(pdev,
phost,
phost->device_prop.Dev_Desc.iManufacturer,
Local_Buffer ,
0xff) == USBH_OK)
{
/* User callback for Manufacturing string */
phost->usr_cb->ManufacturerString(Local_Buffer);
phost->EnumState = ENUM_GET_PRODUCT_STRING_DESC;
}
}
else
{
phost->usr_cb->ManufacturerString("N/A");
phost->EnumState = ENUM_GET_PRODUCT_STRING_DESC;
}
break;
case ENUM_GET_PRODUCT_STRING_DESC:
if (phost->device_prop.Dev_Desc.iProduct != 0)
{ /* Check that Product string is available */
if ( USBH_Get_StringDesc(pdev,
phost,
phost->device_prop.Dev_Desc.iProduct,
Local_Buffer,
0xff) == USBH_OK)
{
/* User callback for Product string */
phost->usr_cb->ProductString(Local_Buffer);
phost->EnumState = ENUM_GET_SERIALNUM_STRING_DESC;
}
}
else
{
phost->usr_cb->ProductString("N/A");
phost->EnumState = ENUM_GET_SERIALNUM_STRING_DESC;
}
break;
case ENUM_GET_SERIALNUM_STRING_DESC:
if (phost->device_prop.Dev_Desc.iSerialNumber != 0)
{ /* Check that Serial number string is available */
if ( USBH_Get_StringDesc(pdev,
phost,
phost->device_prop.Dev_Desc.iSerialNumber,
Local_Buffer,
0xff) == USBH_OK)
{
/* User callback for Serial number string */
phost->usr_cb->SerialNumString(Local_Buffer);
phost->EnumState = ENUM_SET_CONFIGURATION;
}
}
else
{
phost->usr_cb->SerialNumString("N/A");
phost->EnumState = ENUM_SET_CONFIGURATION;
}
break;
case ENUM_SET_CONFIGURATION:
/* set configuration (default config) */
if (USBH_SetCfg(pdev,
phost,
phost->device_prop.Cfg_Desc.bConfigurationValue) == USBH_OK)
{
phost->EnumState = ENUM_DEV_CONFIGURED;
}
break;
case ENUM_DEV_CONFIGURED:
/* user callback for enumeration done */
Status = USBH_OK;
break;
default:
break;
}
return Status;
}
/**
* @brief USBH_Process
* USB Host core main state machine process
* @param None
* @retval None
*/
void USBH_Process(USB_OTG_CORE_HANDLE *pdev , USBH_HOST *phost)
{
volatile USBH_Status status = USBH_FAIL;
/* check for Host port events */
if ((HCD_IsDeviceConnected(pdev) == 0)&& (phost->gState != HOST_IDLE))
{
if(phost->gState != HOST_DEV_DISCONNECTED)
{
phost->gState = HOST_DEV_DISCONNECTED;
}
}
switch (phost->gState)
{
case HOST_IDLE :
if (HCD_IsDeviceConnected(pdev))
{
phost->gState = HOST_DEV_ATTACHED;
USB_OTG_BSP_mDelay(100);
}
break;
case HOST_DEV_ATTACHED :
phost->usr_cb->DeviceAttached();
phost->Control.hc_num_out = USBH_Alloc_Channel(pdev, 0x00);
phost->Control.hc_num_in = USBH_Alloc_Channel(pdev, 0x80);
/* Reset USB Device */
if ( HCD_ResetPort(pdev) == 0)
{
phost->usr_cb->ResetDevice();
/* Wait for USB USBH_ISR_PrtEnDisableChange()
Host is Now ready to start the Enumeration
*/
phost->device_prop.speed = HCD_GetCurrentSpeed(pdev);
phost->gState = HOST_ENUMERATION;
phost->usr_cb->DeviceSpeedDetected(phost->device_prop.speed);
/* Open Control pipes */
USBH_Open_Channel (pdev,
phost->Control.hc_num_in,
phost->device_prop.address,
phost->device_prop.speed,
EP_TYPE_CTRL,
phost->Control.ep0size);
/* Open Control pipes */
USBH_Open_Channel (pdev,
phost->Control.hc_num_out,
phost->device_prop.address,
phost->device_prop.speed,
EP_TYPE_CTRL,
phost->Control.ep0size);
}
break;
case HOST_ENUMERATION:
/* Check for enumeration status */
if ( USBH_HandleEnum(pdev , phost) == USBH_OK)
{
/* The function shall return USBH_OK when full enumeration is complete */
/* user callback for end of device basic enumeration */
phost->usr_cb->EnumerationDone();
phost->gState = HOST_USR_INPUT;
}
break;
case HOST_USR_INPUT:
/*The function should return user response true to move to class state */
if ( phost->usr_cb->UserInput() == USBH_USR_RESP_OK)
{
if((phost->class_cb->Init(pdev, phost))\
== USBH_OK)
{
phost->gState = HOST_CLASS_REQUEST;
}
}
break;
case HOST_CLASS_REQUEST:
/* process class standard contol requests state machine */
status = phost->class_cb->Requests(pdev, phost);
if(status == USBH_OK)
{
phost->gState = HOST_CLASS;
}
else
{
USBH_ErrorHandle(phost, status);
}
break;
case HOST_CLASS:
/* process class state machine */
status = phost->class_cb->Machine(pdev, phost);
USBH_ErrorHandle(phost, status);
break;
case HOST_CTRL_XFER:
/* process control transfer state machine */
USBH_HandleControl(pdev, phost);
break;
case HOST_SUSPENDED:
break;
case HOST_ERROR_STATE:
/* Re-Initilaize Host for new Enumeration */
USBH_DeInit(pdev, phost);
phost->usr_cb->DeInit();
phost->class_cb->DeInit(pdev, &phost->device_prop);
break;
case HOST_DEV_DISCONNECTED :
/* Manage User disconnect operations*/
phost->usr_cb->DeviceDisconnected();
/* Re-Initilaize Host for new Enumeration */
USBH_DeInit(pdev, phost);
phost->usr_cb->DeInit();
phost->class_cb->DeInit(pdev, &phost->device_prop);
USBH_DeAllocate_AllChannel(pdev);
phost->gState = HOST_IDLE;
break;
default :
break;
}
}
/**
* @brief USBH_Process
* USB Host core main state machine process
* @param None
* @retval None
*/
void USBH_Process(USB_OTG_CORE_HANDLE *pdev, USBH_HOST *phost)
{
volatile USBH_Status status = USBH_FAIL;
// if (USB_DEBUG) {
// USB_debugEvent();
// xprintf("USBH_Process phost->gState = %d\n", phost->gState);
// }
/* check for Host port events */
if (((HCD_IsDeviceConnected(pdev) == 0) || (HCD_IsPortEnabled(pdev) == 0)) && (phost->gState != HOST_IDLE)) {
if (phost->gState != HOST_DEV_DISCONNECTED) {
phost->gState = HOST_DEV_DISCONNECTED;
// if (USB_DEBUG){
// USB_debugEvent();
// }
}
}
switch (phost->gState) {
case HOST_IDLE:
if (HCD_IsDeviceConnected(pdev)) {
phost->gState = HOST_WAIT_PRT_ENABLED;
/*wait debounce delay */
USB_OTG_BSP_mDelay(200); // was 100
// if (USB_DEBUG){
// USB_debugEvent();
// }
/* Apply a port RESET */
HCD_ResetPort(pdev);
/* User RESET callback*/
phost->usr_cb->ResetDevice();
}
break;
case HOST_WAIT_PRT_ENABLED:
if (pdev->host.PortEnabled == 1) {
phost->gState = HOST_DEV_ATTACHED;
}
break;
case HOST_DEV_ATTACHED:
phost->usr_cb->DeviceAttached();
phost->Control.hc_num_out = USBH_Alloc_Channel(pdev, 0x00);
phost->Control.hc_num_in = USBH_Alloc_Channel(pdev, 0x80);
// if (USB_DEBUG){
// USB_debugEvent();
// }
phost->device_prop.speed = HCD_GetCurrentSpeed(pdev);
phost->gState = HOST_ENUMERATION;
phost->usr_cb->DeviceSpeedDetected(phost->device_prop.speed);
// if (USB_DEBUG){
// USB_debugEvent();
// }
/* Open Control pipes */
USBH_Open_Channel(pdev, phost->Control.hc_num_in, phost->device_prop.address, phost->device_prop.speed, EP_TYPE_CTRL, phost->Control.ep0size);
// if (USB_DEBUG){
// USB_debugEvent();
// }
/* Open Control pipes */
USBH_Open_Channel(pdev, phost->Control.hc_num_out, phost->device_prop.address, phost->device_prop.speed, EP_TYPE_CTRL, phost->Control.ep0size);
// if (USB_DEBUG){
// USB_debugEvent();
// }
break;
case HOST_ENUMERATION:
/* Check for enumeration status */
if (USBH_HandleEnum(pdev, phost) == USBH_OK) {
/* The function shall return USBH_OK when full enumeration is complete */
/* user callback for end of device basic enumeration */
phost->usr_cb->EnumerationDone();
phost->gState = HOST_USR_INPUT;
// if (USB_DEBUG){
// USB_debugEvent();
// }
}
break;
case HOST_USR_INPUT:
/*The function should return user response true to move to class state */
if (phost->usr_cb->UserInput() == USBH_USR_RESP_OK) {
if ((phost->class_cb->Init(pdev, phost))\
== USBH_OK) {
phost->gState = HOST_CLASS_REQUEST;
}
// if (USB_DEBUG){
// USB_debugEvent();
// }
}
break;
case HOST_CLASS_REQUEST:
/* process class standard contol requests state machine */
// if (USB_DEBUG){
// USB_debugEvent();
// }
status = phost->class_cb->Requests(pdev, phost);
if (status == USBH_OK) {
phost->gState = HOST_CLASS;
// if (USB_DEBUG){
// USB_debugEvent();
// }
}
else {
// if (USB_DEBUG){
// USB_debugEvent();
// }
USBH_ErrorHandle(phost, status);
}
break;
case HOST_CLASS:
/* process class state machine */
status = phost->class_cb->Machine(pdev, phost);
// if (USB_DEBUG){
// USB_debugEvent();
// }
USBH_ErrorHandle(phost, status);
break;
case HOST_CTRL_XFER:
/* process control transfer state machine */
// if (USB_DEBUG){
// USB_debugEvent();
// }
USBH_HandleControl(pdev, phost);
break;
case HOST_SUSPENDED:
break;
case HOST_ERROR_STATE:
/* Re-Initilaize Host for new Enumeration */
// if (USB_DEBUG){
// USB_debugEvent();
// }
USBH_DeInit(pdev, phost);
phost->usr_cb->DeInit();
phost->class_cb->DeInit(pdev, &phost->device_prop);
break;
case HOST_DEV_DISCONNECTED:
// if (USB_DEBUG){
// USB_debugEvent();
// }
/* Manage User disconnect operations*/
phost->usr_cb->DeviceDisconnected();
/* Re-Initilaize Host for new Enumeration */
USBH_DeInit(pdev, phost);
phost->usr_cb->DeInit();
phost->class_cb->DeInit(pdev, &phost->device_prop);
USBH_DeAllocate_AllChannel(pdev);
phost->gState = HOST_IDLE;
/* Re-Initilaize Host for new Enumeration */
HCD_Init(pdev,
#ifdef USE_USB_OTG_FS
USB_OTG_FS_CORE_ID
#else
USB_OTG_HS_CORE_ID
#endif
);
break;
default:
break;
}
}
/**
* @brief USBH_Process
* USB Host core main state machine process
* @param None
* @retval None
*/
void USBH_Process(USB_OTG_CORE_HANDLE *pdev , USBH_HOST *phost)
{
volatile USBH_Status status = USBH_FAIL;
/* check for Host port events */
if (((HCD_IsDeviceConnected(pdev) == 0)|| (HCD_IsPortEnabled(pdev) == 0))&& (phost->gState != HOST_IDLE))
{
if(phost->gState != HOST_DEV_DISCONNECTED)
{
phost->gState = HOST_DEV_DISCONNECTED;
}
}
switch (phost->gState)
{
case HOST_IDLE :
if (HCD_IsDeviceConnected(pdev))
{
phost->gState = HOST_WAIT_PRT_ENABLED;
/*wait denounce delay */
USB_OTG_BSP_mDelay(100);
/* Apply a port RESET */
HCD_ResetPort(pdev);
/* User RESET callback*/
phost->usr_cb->ResetDevice();
}
break;
case HOST_WAIT_PRT_ENABLED:
if (pdev->host.PortEnabled == 1)
{
phost->gState = HOST_DEV_ATTACHED;
USB_OTG_BSP_mDelay(50);
}
break;
case HOST_DEV_ATTACHED :
phost->usr_cb->DeviceAttached();
phost->Control.hc_num_out = USBH_Alloc_Channel(pdev, 0x00);
phost->Control.hc_num_in = USBH_Alloc_Channel(pdev, 0x80);
/* Reset USB Device */
if ( HCD_ResetPort(pdev) == 0)
{
phost->usr_cb->ResetDevice();
/* Host is Now ready to start the Enumeration */
phost->device_prop.speed = HCD_GetCurrentSpeed(pdev);
phost->gState = HOST_ENUMERATION;
phost->usr_cb->DeviceSpeedDetected(phost->device_prop.speed);
/* Open Control pipes */
USBH_Open_Channel (pdev,
phost->Control.hc_num_in,
phost->device_prop.address,
phost->device_prop.speed,
EP_TYPE_CTRL,
phost->Control.ep0size);
/* Open Control pipes */
USBH_Open_Channel (pdev,
phost->Control.hc_num_out,
phost->device_prop.address,
phost->device_prop.speed,
EP_TYPE_CTRL,
phost->Control.ep0size);
}
break;
case HOST_ENUMERATION:
/* Check for enumeration status */
if ( USBH_HandleEnum(pdev , phost) == USBH_OK)
{
/* The function shall return USBH_OK when full enumeration is complete */
/* user callback for end of device basic enumeration */
phost->usr_cb->EnumerationDone();
#if defined (USB_OTG_FS_LOW_PWR_MGMT_SUPPORT) || defined (USB_OTG_HS_LOW_PWR_MGMT_SUPPORT)
phost->gState = HOST_SUSPENDED;
#else
phost->gState = HOST_USR_INPUT;
#endif /* LOW_PWR_MGMT_SUPPORT*/
}
break;
case HOST_USR_INPUT:
/*The function should return user response true to move to class state */
if ( phost->usr_cb->UserInput() == USBH_USR_RESP_OK)
{
if((phost->class_cb->Init(pdev, phost))\
== USBH_OK)
{
phost->gState = HOST_CLASS_REQUEST;
}
}
break;
case HOST_CLASS_REQUEST:
/* process class standard control requests state machine */
status = phost->class_cb->Requests(pdev, phost);
if(status == USBH_OK)
{
phost->gState = HOST_CLASS;
}
else
{
USBH_ErrorHandle(phost, status);
}
break;
case HOST_CLASS:
/* process class state machine */
status = phost->class_cb->Machine(pdev, phost);
USBH_ErrorHandle(phost, status);
break;
case HOST_CTRL_XFER:
/* process control transfer state machine */
USBH_HandleControl(pdev, phost);
break;
#if defined (USB_OTG_FS_LOW_PWR_MGMT_SUPPORT) || defined (USB_OTG_HS_LOW_PWR_MGMT_SUPPORT)
case HOST_SUSPENDED:
if (USBH_SetDeviceFeature(pdev, phost, FEATURE_SELECTOR_DEVICE, 0)==USBH_OK)
{
suspend_flag = 1;
USB_OTG_BSP_Suspend(pdev);
phost->usr_cb->UserInput();
PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);
/* After wakeup got to HOST_WAKEUP state */
phost->gState = HOST_WAKEUP;
}
break;
case HOST_WAKEUP:
/* issue a ClearDeviceFeature request */
if (USBH_ClearDeviceFeature(pdev, phost, FEATURE_SELECTOR_DEVICE, 0)==USBH_OK)
{
phost->gState = HOST_USR_INPUT;
}
break;
#endif /* USE_HOST_MODE */
case HOST_ERROR_STATE:
/* Re-Initialize Host for new Enumeration */
USBH_DeInit(pdev, phost);
phost->usr_cb->DeInit();
phost->class_cb->DeInit(pdev, &phost->device_prop);
break;
case HOST_DEV_DISCONNECTED :
/* Manage User disconnect operations*/
phost->usr_cb->DeviceDisconnected();
/* Re-Initialize Host for new Enumeration */
USBH_DeInit(pdev, phost);
phost->usr_cb->DeInit();
phost->class_cb->DeInit(pdev, &phost->device_prop);
USBH_DeAllocate_AllChannel(pdev);
phost->gState = HOST_IDLE;
/* Re-Initialize Host for new Enumeration */
HCD_Init(pdev,
#ifdef USE_USB_OTG_FS
USB_OTG_FS_CORE_ID
#else
USB_OTG_HS_CORE_ID
#endif
);
break;
default :
break;
}
}
/* 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 USBH_Process
* USB Host core main state machine process
* @param None
* @retval None
*/
void USBH_Process(USB_OTG_CORE_HANDLE *pdev , USBH_HOST *phost)
{
volatile USBH_Status status = USBH_FAIL;
/* check for Host port events */
if ((HCD_IsDeviceConnected(pdev) == 0)&& (phost->gState != HOST_IDLE))
{
printf("check for Host port events\r\n");
if(phost->gState != HOST_DEV_DISCONNECTED)
{
phost->gState = HOST_DEV_DISCONNECTED;
}
}
switch (phost->gState)
{
case HOST_IDLE :
if (HCD_IsDeviceConnected(pdev))
{
printf("HOST_DEV_ATTACHED is enter\r\n");
phost->gState = HOST_DEV_ATTACHED;
USB_OTG_BSP_mDelay(100);
}
break;
case HOST_DEV_ATTACHED :
phost->usr_cb->DeviceAttached();
phost->Control.hc_num_out = USBH_Alloc_Channel(pdev, 0x00);
phost->Control.hc_num_in = USBH_Alloc_Channel(pdev, 0x80);
/* Reset USB Device */
if ( HCD_ResetPort(pdev) == 0)
{
printf("HOST_DEV_ATTACHED state reset device");
phost->usr_cb->ResetDevice();
/* Wait for USB USBH_ISR_PrtEnDisableChange()
Host is Now ready to start the Enumeration
*/
phost->device_prop.speed = HCD_GetCurrentSpeed(pdev);
phost->gState = HOST_ENUMERATION;
phost->usr_cb->DeviceSpeedDetected(phost->device_prop.speed);
/* Open Control pipes */
USBH_Open_Channel (pdev,
phost->Control.hc_num_in,
phost->device_prop.address,
phost->device_prop.speed,
EP_TYPE_CTRL,
phost->Control.ep0size);
/* Open Control pipes */
USBH_Open_Channel (pdev,
phost->Control.hc_num_out,
phost->device_prop.address,
phost->device_prop.speed,
EP_TYPE_CTRL,
phost->Control.ep0size);
}
// printfpdev_reg(pdev);
break;
case HOST_ENUMERATION:
// printfpdev_reg(pdev);
// printf(" in HOST_ENUMERATION state\r\n ");
/* Check for enumeration status */
if ( USBH_HandleEnum(pdev , phost) == USBH_OK)
{
printf("HOST_ENUMERATION state enumeration is ok");
/* The function shall return USBH_OK when full enumeration is complete */
/* user callback for end of device basic enumeration */
phost->usr_cb->EnumerationDone();
phost->gState = HOST_USR_INPUT;
}
break;
case HOST_USR_INPUT:
/*The function should return user response true to move to class state */
if ( phost->usr_cb->UserInput() == USBH_USR_RESP_OK)
{
printf("HOST_USR_INPUT state : user_input is ok\r\n");
if((phost->class_cb->Init(pdev, phost))\
== USBH_OK)
{
phost->gState = HOST_CLASS_REQUEST;
}
}
// printf("GINTSTS :%X\r\n",(pdev->regs.GREGS->GINTSTS));
break;
case HOST_CLASS_REQUEST:
/* process class standard contol requests state machine */
status = phost->class_cb->Requests(pdev, phost);
if(status == USBH_OK)
{
printf("HOST_CLASS_REQUEST state : contol requests is ok and host class is enter\r\n");
phost->gState = HOST_CLASS;
#if 0
// USB_OTG_WRITE_REG32(&pdev->regs.HREGS->HFNUM,0X43FD039B);
printf("GRXSTSR: %X\r\n", USB_OTG_READ_REG32(&pdev->regs.GREGS->GRXSTSR));
printf("HNPTXSTS: %X\r\n", USB_OTG_READ_REG32(&pdev->regs.GREGS->HNPTXSTS));
printf("HFNUM: %X\r\n", USB_OTG_READ_REG32(&pdev->regs.HREGS->HFNUM));
printf("HNPTXSTS: %X\r\n", USB_OTG_READ_REG32(&pdev->regs.GREGS->HNPTXSTS));
printf("DIEPTSIZ: %X\r\n", USB_OTG_READ_REG32(&pdev->regs.INEP_REGS[8]->DIEPCTL ));
printf("DIEPDMA: %X\r\n", USB_OTG_READ_REG32(&pdev->regs.INEP_REGS[8]->DIEPDMA ));
printfpdev_reg(pdev);
#endif
}
else
{
USBH_ErrorHandle(phost, status);
}
break;
case HOST_CLASS:
/* process class state machine */
status = phost->class_cb->Machine(pdev, phost);
USBH_ErrorHandle(phost, status);
break;
case HOST_CTRL_XFER:
/* process control transfer state machine */
printf("HOST_CTRL_XFER\r\n");
USBH_HandleControl(pdev, phost);
break;
case HOST_SUSPENDED:
printf("HOST_SUSPENDED\r\n");
break;
case HOST_ERROR_STATE:
/* Re-Initilaize Host for new Enumeration */
USBH_DeInit(pdev, phost);
phost->usr_cb->DeInit();
phost->class_cb->DeInit(pdev, &phost->device_prop);
break;
case HOST_DEV_DISCONNECTED :
/* Manage User disconnect operations*/
phost->usr_cb->DeviceDisconnected();//user µ÷ÓÃ
/* Re-Initilaize Host for new Enumeration */
USBH_DeInit(pdev, phost);
phost->usr_cb->DeInit();
phost->class_cb->DeInit(pdev, &phost->device_prop);
USBH_DeAllocate_AllChannel(pdev);
phost->gState = HOST_IDLE;
// NVIC_SystemReset();
break;
default :
break;
}
}
