stdreq.c

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/*++

Copyright (c) 2001 Sunplus Technology Co., Ltd.

Module Name:

        stdreq.c

Abstract:

        Module related to standard request

Environment:

        Keil C51 Compiler

Revision History:

        08/28/2001      Chi-Yeh Tsai    created                 

--*/

//=============================================================================
//Header file
//=============================================================================
#include "general.h"
#include "stdreq.h"
#include "main.h"
#include "ctlsetup.h"
#include "stddesc.h"
#include "usbstr.h"
#include "uiflow.h"

//=============================================================================
//Symbol
//=============================================================================
//-----------------------------------------------------------------------------
//Constant
//-----------------------------------------------------------------------------

//-----------------------------------------------------------------------------
//Variable
//-----------------------------------------------------------------------------

//=============================================================================
//Program
//=============================================================================
//-----------------------------------------------------------------------------
//STDREQ_NoDataPhase
//-----------------------------------------------------------------------------
void STDREQ_NoDataPhase(void) USING_1
/*++

Routine Description:

        process standard request without data phase

Arguments:

        none

Return Value:

        none

--*/
{
}

//-----------------------------------------------------------------------------
//STDREQ_PreInDataPhase
//-----------------------------------------------------------------------------
void STDREQ_PreInDataPhase(void) USING_1
/*++

Routine Description:

        pre-process setting of following in data phase

Arguments:

        none

Return Value:

        none

--*/
{
        switch (G_pCtrlCommand->bRequest)
        {
                case K_STDREQCODE_GET_DESCRIPTOR:
                        STDREQ_PreGetDescriptor();      //GET_DESCRIPTOR
                        break;

                default:
                        break;
        }
}

//-----------------------------------------------------------------------------
//STDREQ_PreOutDataPhase
//-----------------------------------------------------------------------------
void STDREQ_PreOutDataPhase(void) USING_1
/*++

Routine Description:

        pre-process setting of following out data phase

Arguments:

        none

Return Value:

        none

--*/
{
        G_pucCtrlDataPointer = G_ucCtrlData;
}

//-----------------------------------------------------------------------------
//STDREQ_PostInDataPhase
//-----------------------------------------------------------------------------
void STDREQ_PostInDataPhase(void) USING_1
/*++

Routine Description:

        post-process data of complete in data phase

Arguments:

        none

Return Value:

        none
                             
--*/
{
}

//-----------------------------------------------------------------------------
//STDREQ_PostOutDataPhase
//-----------------------------------------------------------------------------
void STDREQ_PostOutDataPhase(void) USING_1
/*++

Routine Description:

        post-process data of complete out data phase

Arguments:

        none

Return Value:

        none

--*/
{
}

//-----------------------------------------------------------------------------
//STDREQ_PreGetDescriptor
//-----------------------------------------------------------------------------
void STDREQ_PreGetDescriptor(void) USING_1
/*++

Routine Description:

        prepare standard request of get descriptor

Arguments:

        none

Return Value:

        none

--*/
{
        USHORT sizeAvailable = 0;

        //get descriptor length
        switch (G_pCtrlCommand->wValue & 0xff00)
        {
                case K_DEVICE_DESCRIPTOR:
                        //get device descriptor
                        //DbgPrint("STDREQ_PreGetDescriptor: get device descriptor\n");
//richie@g0109
//richie@si0417
//                                                if (G_ui_status == K_UI_mass_storage)//(1)//((XBYTE[0x2041] & 0x10) == 0x00)
		        if ( ((G_UIStatus & 0xff00) == K_UISTATUS_USBMODE_MASS)  //yichang@replace
			   && (G_CameraOptions.Storage == K_UIOPTION_STORAGE_MSDC) )	
			{
	                        G_pucCtrlDataPointer = (UCHAR *)&K_MSDC_DeviceDescriptor; // WWWW
	                        sizeAvailable = K_MSDC_DEVICE_DESCRIPTOR_SIZE; 
			}
//                                                else if (G_ui_status == K_UI_still_image_class)//(1)//((XBYTE[0x2041] & 0x10) == 0x00)
		        else if ( ((G_UIStatus & 0xff00) == K_UISTATUS_USBMODE_MASS)  //yichang@replace
			   && (G_CameraOptions.Storage == K_UIOPTION_STORAGE_SIDC) )	
			{
	                        G_pucCtrlDataPointer = (UCHAR *)&K_SIDC_DeviceDescriptor; // WWWW
	                        sizeAvailable = K_SIDC_DEVICE_DESCRIPTOR_SIZE; 
			}
			else
			{
	                        G_pucCtrlDataPointer = (UCHAR *)&K_DeviceDescriptor; // WWWW
	                        sizeAvailable = K_DEVICE_DESCRIPTOR_SIZE; 
			}

                        break;

                case K_CONFIGURATION_DESCRIPTOR:
                        //get configuration descriptor
                        //DbgPrint("STDREQ_PreGetDescriptor: get configuration descriptor\n");
//richie@g0109
//richie@si0417
//                                                if (G_ui_status == K_UI_mass_storage)//(1)//((XBYTE[0x2041] & 0x10) == 0x00)
		        if ( ((G_UIStatus & 0xff00) == K_UISTATUS_USBMODE_MASS)  //yichang@replace
			   && (G_CameraOptions.Storage == K_UIOPTION_STORAGE_MSDC) )	
			{
	                        G_pucCtrlDataPointer = (UCHAR *)&K_MSDC_ConfigurationDescriptor; // WWWW
	                        sizeAvailable = K_MSDC_CONFIGURATION_DESCRIPTOR_SIZE;
			}
//                                                else if (G_ui_status == K_UI_still_image_class)//(1)//((XBYTE[0x2041] & 0x10) == 0x00)
		        else if ( ((G_UIStatus & 0xff00) == K_UISTATUS_USBMODE_MASS)  //yichang@replace
			   && (G_CameraOptions.Storage == K_UIOPTION_STORAGE_SIDC) )	
			{
	                        G_pucCtrlDataPointer = (UCHAR *)&K_SIDC_ConfigurationDescriptor; // WWWW
	                        sizeAvailable = K_SIDC_CONFIGURATION_DESCRIPTOR_SIZE;
			}
			else
			{
	                        G_pucCtrlDataPointer = (UCHAR *)&K_ConfigurationDescriptor; // WWWW
	                        sizeAvailable = K_CONFIGURATION_DESCRIPTOR_SIZE;
			}
                        break;

                case K_STRING_DESCRIPTOR:
                        //get string descriptor
                        //DbgPrint("STDREQ_PreGetDescriptor: get string descriptor\n");
                        switch (G_pCtrlCommand->wValue & 0x00ff)
                        {
                                case 0x0000:    
                                        //get language ID string        
                                        G_pucCtrlDataPointer = K_LanguageIdString;       
                                        sizeAvailable = K_LANGUAGE_ID_STRING_SIZE;
                                        break;

                                case 0x0001:    
                                        //get manufacturer string        
                                        G_pucCtrlDataPointer = K_ManufacturerString;       
                                        sizeAvailable = K_MANUFACTURER_STRING_SIZE;
                                        break;

                                case 0x0002:    
                                        //get product string        
                                        G_pucCtrlDataPointer = K_ProductString;       
                                        sizeAvailable = K_PRODUCT_STRING_SIZE;
                                        break;

                                case 0x0003:    
                                        //get serial number string
                                        G_pucCtrlDataPointer = K_SerialNumberString;
                                        sizeAvailable = K_SERIAL_NUMBER_STRING_SIZE;
                                        break;

#if 0
                                case 0x0004:    
                                        //get configuration string
                                        G_pucCtrlDataPointer = K_ConfigurationString;
                                        sizeAvailable = K_CONFIGURATION_STRING_SIZE;
                                        break;

                                case 0x0005:    
                                        //get interface string
                                        G_pucCtrlDataPointer = K_InterfaceString;
                                        sizeAvailable = K_INTERFACE_STRING_SIZE;
                                        break;
#endif

                                default:
                                        G_usCtrlDataLength = 0;
                                        break;
                        }
                        break;

                default:
                        G_usCtrlDataLength = 0;
                        break;
        }

        //min(sizeAvailable, wLength) -> DataLength
        if (sizeAvailable < G_usCtrlDataLength)
                G_usCtrlDataLength = sizeAvailable;
}