usb_host_ms_drv.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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/*****************************************************************************
 *
 * Filename:
 * ---------
 *    usb_host_ms_drv.c
 *
 * Project:
 * --------
 *   Maui_Software
 *
 * Description:
 * ------------
 *   This file implements host mass storage class driver
 *
 * Author:
 * -------
 * -------
 *
 *============================================================================
 *             HISTORY
 * Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
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 *============================================================================
 ****************************************************************************/
 
#include "drv_comm.h"
#include "gpt_sw.h"
#include "app_buff_alloc.h"
#include "usb_comm.h"
#include "usb.h"
#include "usb_custom.h"
#include "usbd.h"
#include "otg_drv.h"

#include "stack_common.h"
#include "stack_msgs.h"
#include "app_ltlcom.h"       /* Task message communiction */

#include "usbms_state.h"
#include "usb_host_ms_drv.h"
#include "usb_host_ms_if.h"
#include "usb_host_ms_custom.h"
#include "usb_host_ms_adap.h"

/* for debig only*/
//#include "usb_hcd_pri.h"
//extern USB_HCD_Struct g_UsbHcdInfo;

#ifdef __OTG_ENABLE__

/* The command and data (exepct read and write use this shared buffer)*/
/* Only one command and one data will be executed at one time */
static kal_uint8 g_usb_ms_cmd[USBMS_MAX_CMD_LEN];
static kal_uint8 g_usb_ms_data[USBMS_MAX_DATA_LEN];

static kal_bool	USB_Host_Ms_Match(USBD_Desc_Info *p_desc_info, kal_uint8 *p_cfg_num);
static void USB_Host_Ms_Startup(kal_uint8 cfg_num);
static void USB_Host_Ms_Detach(void);

static kal_bool USB_Host_Ms_Send_Cmd(USBH_Ms_Cmd_Struct *ms_cmd);
static void USB_Host_Ms_Hdlr(USB_HCD_STATUS result, kal_uint32 param);
static void USB_Host_Ms_Ctrl_EP_Hdlr(USB_HCD_STATUS result, kal_uint32 param);
static void USB_Host_Ms_Bulk_EP_Hdlr(USB_HCD_STATUS result, kal_uint32 param);
static void USB_Host_Ms_CBW_Hdler(USB_HCD_STATUS result, kal_uint32 param);
static void USB_Host_Ms_DATA_Hdler(USB_HCD_STATUS result, kal_uint32 param);
static void USB_Host_Ms_CSW_Hdler(USB_HCD_STATUS result, kal_uint32 param);

USB_Host_Ms_Struct g_UsbHostMs;

USBD_ClassDriver_Struct USB_Host_Ms_Drv = 
{
	USB_Host_Ms_Match,
	USB_Host_Ms_Startup,
	USB_Host_Ms_Detach
};

/************************************************************
	ms class register  functions (match, startup, detatch)
*************************************************************/

static kal_bool	USB_Host_Ms_Match(USBD_Desc_Info *p_desc_info, kal_uint8 *p_cfg_num)
{
	kal_bool b_match = KAL_FALSE;
	kal_uint32 index = 0;
	kal_uint32 index2 = 0;
	kal_uint16 max_support_power = USBD_Get_Max_Power();
	
	max_support_power = max_support_power/2;
	*p_cfg_num = 0;
	
	while(index < p_desc_info->cfg_number)
	{
		if((p_desc_info->dev_desc.bDeviceClass == USB_MS_DEVICE_CODE) 
			&& (p_desc_info->cfg_info[index].p_cfg_desc->bMaxPower<=max_support_power)
			&& (p_desc_info->cfg_info[index].p_interface_info[0]->p_interface_desc->bInterfaceClass== USB_MS_INTERFACE_CLASS_CODE)
			&& (p_desc_info->cfg_info[index].p_interface_info[0]->p_interface_desc->bInterfaceSubClass  == USB_MS_INTERFACE_SUBCLASS_CODE) 
			&& (p_desc_info->cfg_info[index].p_interface_info[0]->p_interface_desc->bInterfaceProtocol  == USB_MS_INTERFACE_PROTOCOL_CODE) )
		{
			b_match = KAL_TRUE;
		
			for(index2 = 0; index2 < p_desc_info->cfg_info[index].p_interface_info[0]->ep_number; index2++)
			{
				if(((p_desc_info->cfg_info[index].p_interface_info[0]->p_ep_info[index2]->p_stdep->bEndpointAddress & USB_EP_DIR) == USB_EP_DIR_IN)
					&& (p_desc_info->cfg_info[index].p_interface_info[0]->p_ep_info[index2]->p_stdep->bmAttributes == USB_EP_BULK))
				{
					g_UsbHostMs.ep_in_num = p_desc_info->cfg_info[index].p_interface_info[0]->p_ep_info[index2]->p_stdep->bEndpointAddress & (~USB_EP_DIR);
					g_UsbHostMs.ep_in_max_pkt_size = p_desc_info->cfg_info[index].p_interface_info[0]->p_ep_info[index2]->p_stdep->wMaxPacketSize[0]
										+ (p_desc_info->cfg_info[index].p_interface_info[0]->p_ep_info[index2]->p_stdep->wMaxPacketSize[1]<<8);
					if(g_UsbHostMs.ep_in_max_pkt_size>USB_HCD_Get_FM_Pkt_Size())
						b_match = KAL_FALSE;
				}
				else if(((p_desc_info->cfg_info[index].p_interface_info[0]->p_ep_info[index2]->p_stdep->bEndpointAddress & USB_EP_DIR) == USB_EP_DIR_OUT)
					&& (p_desc_info->cfg_info[index].p_interface_info[0]->p_ep_info[index2]->p_stdep->bmAttributes == USB_EP_BULK))
				{
					g_UsbHostMs.ep_out_num = p_desc_info->cfg_info[index].p_interface_info[0]->p_ep_info[index2]->p_stdep->bEndpointAddress & (~USB_EP_DIR);	
					g_UsbHostMs.ep_out_max_pkt_size = p_desc_info->cfg_info[index].p_interface_info[0]->p_ep_info[index2]->p_stdep->wMaxPacketSize[0]
										+ (p_desc_info->cfg_info[index].p_interface_info[0]->p_ep_info[index2]->p_stdep->wMaxPacketSize[1]<<8);
					if(g_UsbHostMs.ep_in_max_pkt_size>USB_HCD_Get_FM_Pkt_Size())
						b_match = KAL_FALSE;
				}	
			}
		}
		
		if(b_match==KAL_TRUE)
		{
			*p_cfg_num = p_desc_info->cfg_info[index].p_cfg_desc->bConfigurationValue;
			break;		
		}
		index++;	
	}
	
	return b_match;
}

static void USB_Host_Ms_Startup(kal_uint8 cfg_num)
{
	kal_uint8 ep_index;
	kal_uint8 index;
	ilm_struct *usb_ilm;
	kal_uint32 event_group;

	ep_index = USB_HCD_Get_EP_Channel( );
	USB_HCD_Set_EP_Max_Pkt(ep_index, g_UsbHostMs.ep_in_max_pkt_size);
	g_UsbHostMs.ep_in_index = ep_index;
	ep_index = USB_HCD_Get_EP_Channel( );
	USB_HCD_Set_EP_Max_Pkt(ep_index, g_UsbHostMs.ep_out_max_pkt_size);
	g_UsbHostMs.ep_out_index = ep_index;

	g_UsbHostMs.total_lun = 0;
	g_UsbHostMs.media_handle = USBHost_Get_Media_Hanle(&g_UsbHostMs.support_lun);
	/* Initailize media handle */
	for(index = 0; index < g_UsbHostMs.support_lun; index++)
		g_UsbHostMs.media_handle[index] = index;
	USB_Host_Ms_Get_Media_Resource();
	if((g_UsbHostMs.support_lun==0) || (g_UsbHostMs.media_info==NULL) || (g_UsbHostMs.media_msg_array==NULL))
		EXT_ASSERT(0, (kal_uint32)g_UsbHostMs.support_lun,  (kal_uint32)g_UsbHostMs.media_info, 
					(kal_uint32)g_UsbHostMs.media_msg_array);
	g_UsbHostMs.dev_error_count = 0;
	g_UsbHostMs.dev_state = USB_HOST_MS_DEV_STATE_READY;
	g_UsbHostMs.dev_attatch = KAL_TRUE;
	
	USB_HCD_Register_Drv_Info(USB_HCD_HDLR_TOKEN_DONE, g_UsbHostMs.ep_in_index, USB_Host_Ms_Hdlr);
	USB_HCD_Register_Drv_Info(USB_HCD_HDLR_TOKEN_DONE, g_UsbHostMs.ep_out_index, USB_Host_Ms_Hdlr);
	
	if(g_UsbHostMs.ep_in_max_pkt_size==USB_HCD_Get_FM_Pkt_Size())
		USB_HCD_InEPEn(g_UsbHostMs.ep_in_index, g_UsbHostMs.ep_in_num, USB_HCD_ENDPT_BULK, 100, KAL_TRUE);
	else
		USB_HCD_InEPEn(g_UsbHostMs.ep_in_index, g_UsbHostMs.ep_in_num, USB_HCD_ENDPT_BULK, 0xff, KAL_FALSE);
	if(g_UsbHostMs.ep_out_max_pkt_size==USB_HCD_Get_FM_Pkt_Size())
		USB_HCD_OutEPEn(g_UsbHostMs.ep_out_index, g_UsbHostMs.ep_out_num, USB_HCD_ENDPT_BULK, 100, KAL_TRUE);
	else
		USB_HCD_OutEPEn(g_UsbHostMs.ep_out_index, g_UsbHostMs.ep_out_num, USB_HCD_ENDPT_BULK, 0xff, KAL_FALSE);


	USBD_Register_EP0_Callback(USB_Host_Ms_Hdlr);
	//USBD_Register_EP0_Callback(USB_Host_Ms_EP0_Callback);
	
	USB_HCD_Get_DMA_Channel();

	if(g_UsbHostMs.event_id!=0)
	{
		/* rereive all events that may exist after previous detatch */
		kal_retrieve_eg_events(g_UsbHostMs.event_id, EVENT_USB_MS_DONE|EVENT_USB_MS_DETATCH, 
							KAL_OR_CONSUME, &event_group, KAL_NO_SUSPEND);
	}
	
	/* send msg to USB task, start ms state machine */
	DRV_BuildPrimitive(usb_ilm, MOD_DRV_HISR,
					MOD_USB, MSG_ID_USB_MSHOST_START_IND, NULL);
	msg_send_ext_queue(usb_ilm);
	
	USB_Host_Ms_SendInd(USB_HOST_MS_MSG_PLUG_IN);
}

static void USB_Host_Ms_Detach(void)
{
	kal_uint32 index;

	GPTI_StopItem(g_UsbHostMs.gpt_handle);
	USB_HCD_Free_DMA_Channel();
	USB_HCD_Free_EP_Channel();

	for(index=0; index<g_UsbHostMs.total_lun; index++)
	{
		/* If original state is READY, set state change as true */
		if(((g_UsbHostMs.media_info[index].state==USB_HOST_MS_MEDIA_STATE_WR_PROTECT)
			||(g_UsbHostMs.media_info[index].state==USB_HOST_MS_MEDIA_STATE_READY))
			&& (g_UsbHostMs.media_info[index].sec_size!=0))
		{
			g_UsbHostMs.media_state_change |= (1<<index);
		}
		
		/* Set all the media state to error */
		g_UsbHostMs.media_info[index].state = USB_HOST_MS_MEDIA_STATE_ABSENT;
	}

	g_UsbHostMs.dev_attatch = KAL_FALSE;

	/* wake up wating task */
	g_UsbHostMs.result = USB_HOST_MS_RESULT_TIMEOUT;
	kal_set_eg_events(g_UsbHostMs.event_id, EVENT_USB_MS_DETATCH, KAL_OR);

	USB_Host_Ms_Dis_Device();

	/* Notify FMT about media change */
	if((g_UsbHostMs.media_state_change != 0) && (g_UsbHostMs.b_sending_change_ilm == KAL_FALSE))
	{
		for(index=0; index<g_UsbHostMs.total_lun; index++)
		{
			if((g_UsbHostMs.media_state_change&(1<<index))!=0)
				g_UsbHostMs.media_msg_array[index] = (kal_uint32)&g_UsbHostMs.media_handle[index];
			else
				g_UsbHostMs.media_msg_array[index] = NULL;
		}
		g_UsbHostMs.media_state_change = 0;
		USB_Host_Ms_SendInd(USB_HOST_MS_MSG_MEDIA_CHANGE);
	}

	USB_Host_Ms_SendInd(USB_HOST_MS_MSG_PLUG_OUT);
}


/************************************************************
	ms utilities (send msg to FMT task. Indicate card status change)
*************************************************************/
#include "custom_config.h"

/* send card change indication to FMT task */
void USB_Host_Ms_SendInd(USB_HOST_MS_MSG_TYPE msg)
{
	ilm_struct *usb_ilm;
	usb_host_ms_media_struct *change_ind;
	usb_host_ms_drive_struct *drive_ind;

	switch(msg)
	{
	case USB_HOST_MS_MSG_MEDIA_CHANGE:
		if(g_UsbHostMs.b_sending_change_ilm==KAL_TRUE)
			ASSERT(0);
		g_UsbHostMs.b_sending_change_ilm = KAL_TRUE;
		change_ind = (usb_host_ms_media_struct*)construct_local_para(
						sizeof(usb_host_ms_media_struct) + (sizeof(kal_uint32*)*g_UsbHostMs.support_lun-1) , TD_CTRL);
		change_ind->media_size = g_UsbHostMs.support_lun;
		kal_mem_cpy(&change_ind->media_array, g_UsbHostMs.media_msg_array, sizeof(kal_uint32*)*g_UsbHostMs.support_lun);
		DRV_BuildPrimitive(usb_ilm,
					MOD_DRV_HISR,
					MOD_FMT,	
					MSG_ID_OTG_CARD_DETECT_IND,
					change_ind);
		msg_send_ext_queue(usb_ilm);
		break;
	case USB_HOST_MS_MSG_PLUG_IN:
		drive_ind = (usb_host_ms_drive_struct*)construct_local_para(
							sizeof(usb_host_ms_drive_struct), TD_CTRL);
		drive_ind->drive = (void*)&FS_OTGDrv;
		drive_ind->media_size = g_UsbHostMs.support_lun;
		DRV_BuildPrimitive(usb_ilm,
						MOD_DRV_HISR,
						MOD_FMT,
						MSG_ID_OTG_MS_INSERT_IND,
						drive_ind);
		msg_send_ext_queue(usb_ilm);
		break;
	case USB_HOST_MS_MSG_PLUG_OUT:
		if(g_UsbHostMs.b_sending_plugout_ilm==KAL_TRUE)
			ASSERT(0);
		g_UsbHostMs.b_sending_plugout_ilm = KAL_TRUE;
		drive_ind = (usb_host_ms_drive_struct*)construct_local_para(
							sizeof(usb_host_ms_drive_struct), TD_CTRL);
		drive_ind->drive = (void*)&FS_OTGDrv;
		drive_ind->media_size = g_UsbHostMs.support_lun;
		DRV_BuildPrimitive(usb_ilm,
						MOD_DRV_HISR,
						MOD_FMT,
						MSG_ID_OTG_MS_REMOVE_IND,
						drive_ind);
		msg_send_ext_queue(usb_ilm);
		break;
	default:
		EXT_ASSERT(0, msg, g_UsbHostMs.dev_state, 0);
		break;	
	}
}

void USB_Host_Ms_Get_Media_Resource(void)
{
	kal_uint8 index;
	g_UsbHostMs.media_info = (USBH_Ms_Media_Struct*)get_ctrl_buffer(sizeof(USBH_Ms_Media_Struct)*g_UsbHostMs.support_lun);
	g_UsbHostMs.media_msg_array = get_ctrl_buffer(sizeof(kal_uint32)*g_UsbHostMs.support_lun);
	for(index = 0; index < g_UsbHostMs.support_lun; index++)
		g_UsbHostMs.media_msg_array[index] = NULL;
}

void USB_Host_Ms_Free_Media_Resource(void)
{
	free_ctrl_buffer((USBH_Ms_Media_Struct*)g_UsbHostMs.media_info);
	g_UsbHostMs.media_info = NULL;

	free_ctrl_buffer((kal_uint32*)g_UsbHostMs.media_msg_array);
	g_UsbHostMs.media_msg_array = NULL;
}

void USB_Host_Ms_Dis_Device(void)
{
	USB_HCD_Dis_Attach();
}