usb_resource.c

mtk 6225平台的usb程序！ 对想了解mtk平台usb的朋友会有帮助！

/*****************************************************************************
*  Copyright Statement:
*  --------------------
*  This software is protected by Copyright and the information contained
*  herein is confidential. The software may not be copied and the information
*  contained herein may not be used or disclosed except with the written
*  permission of MediaTek Inc. (C) 2005
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*  THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
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/*****************************************************************************
 *
 * Filename:
 * ---------
 *    usb_resource.c
 *
 * Project:
 * --------
 *   Maui_Software
 *
 * Description:
 * ------------
 *  This file implements usb resource management
 *
 * Author:
 * -------
 * -------
 * -------
 *
 *============================================================================
 *             HISTORY
 * Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
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 ****************************************************************************/
 
#include "drv_comm.h"
#include "app_buff_alloc.h"
#include "gpt_sw.h"
#include "usb_comm.h"
#include "usb_drv.h"
#include "usb.h"
#include "usb_resource.h"
#include "usb_custom.h"

static const kal_uint16 USB_Language_String[] = 
{
   0x0304,
   0x0409
};

/* interface specific create and init functions */
static Usb_IfCreate_Info usb_ifcreate_tbl[USB_MAX_INTERFACE];
static kal_uint8 usb_ifcreate_number = 0;
/* device code */
static Usb_Device_Code usb_device_code;

/* static functions */
static void USB_Resource_Reset(void);


/* register class specific create functions,  class specific create function should create interface descriptor*/
void USB_Register_CreateFunc( kal_char* if_name, usb_create_if_func_ptr if_create_func, VOID_FUNC if_init_func)
{
	if((usb_ifcreate_number>=USB_MAX_INTERFACE) || (if_create_func == NULL) || (if_init_func == NULL))
		EXT_ASSERT(0, usb_ifcreate_number, (kal_uint32)if_create_func, (kal_uint32)if_init_func);

	usb_ifcreate_tbl[usb_ifcreate_number].if_name_ptr = if_name;
	usb_ifcreate_tbl[usb_ifcreate_number].if_create_func = if_create_func;
	usb_ifcreate_tbl[usb_ifcreate_number].if_init_func = if_init_func;
	
	usb_ifcreate_number++;	
}


/* register class specific device and product code*/
void USB_Register_Device_Code(kal_uint8 device_code, kal_uint8 subclass_code, 
									kal_uint8 protocol_code, kal_uint16 product_code)
{
	ASSERT(usb_device_code.b_registerd == KAL_FALSE);
	usb_device_code.device_code = device_code;
	usb_device_code.subclass_code = subclass_code;
	usb_device_code.protocol_code = protocol_code;
	usb_device_code.product_code= product_code;
	usb_device_code.b_registerd= KAL_TRUE;
}


/* deregister class specific create functions, should be called when cable plug out */
void USB_DeRegister_CreateFunc(void)
{
	usb_ifcreate_number = 0;
}


/* deregister class specific device and product code, should be called when cable plug out */
void USB_DeRegister_Device_Code(void)
{
	usb_device_code.b_registerd = KAL_FALSE;	
}


/* get interrupt endpoint number and endpoint info pointer */
Usb_Ep_Info* USB_Get_Intr_Ep(kal_uint8 *p_num)
{
	/* interrupt must EP 3*/
	gUsbDevice.resource_ep_intr_number++;
	if(gUsbDevice.resource_ep_intr_number > USB_MAX_EP_INTR)
	{
		EXT_ASSERT(0, gUsbDevice.resource_ep_intr_number, USB_MAX_EP_INTR, 0);
	}
	*p_num = 3;
	return (&gUsbDevice.ep_intr_info[0]);
}


/* get bulk in endpoint number and endpoint info pointer */
Usb_Ep_Info* USB_Get_BulkIn_Ep(kal_uint8 *p_num)
{
	gUsbDevice.resource_ep_bulkin_number++;
	if(gUsbDevice.resource_ep_bulkin_number > USB_MAX_EP_BULK_IN)
	{
		EXT_ASSERT(0, gUsbDevice.resource_ep_bulkin_number, USB_MAX_EP_BULK_IN, 0);
	}
	*p_num = gUsbDevice.resource_ep_bulkin_number;
	return (&gUsbDevice.ep_bulkin_info[gUsbDevice.resource_ep_bulkin_number - 1]);
}


/* get bulk out endpoint number and endpoint info pointer */
Usb_Ep_Info* USB_Get_BulkOut_Ep(kal_uint8 *p_num)
{
	gUsbDevice.resource_ep_bulkout_number++;
	if(gUsbDevice.resource_ep_bulkout_number > USB_MAX_EP_BULK_OUT)
	{
		EXT_ASSERT(0, gUsbDevice.resource_ep_bulkout_number, USB_MAX_EP_BULK_OUT, 0);
	}
	*p_num = gUsbDevice.resource_ep_bulkout_number;
	return (&gUsbDevice.ep_bulkout_info[gUsbDevice.resource_ep_bulkout_number - 1]);
}

/* get interface number and interface info pointer */
Usb_Interface_Info* USB_Get_Interface_Number(kal_uint8 *p_num)
{
	gUsbDevice.resource_interface_number++;
	if(gUsbDevice.resource_interface_number > USB_MAX_INTERFACE)
	{
		EXT_ASSERT(0, gUsbDevice.resource_interface_number, USB_MAX_INTERFACE, 0);
	}