usb: gadget: Gadget directory cleanup - group UDC drivers

The drivers/usb/gadget directory contains many files.
Files which are related can be distributed into separate directories.
This patch moves the UDC drivers into a separate directory.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 0 insertions, 2731 deletions

diff --git a/drivers/usb/gadget/fsl_qe_udc.c b/drivers/usb/gadget/fsl_qe_udc.c
deleted file mode 100644
index 732430804841..000000000000
--- a/drivers/usb/gadget/fsl_qe_udc.c
+++ /dev/null
@@ -1,2731 +0,0 @@
-/*
- * driver/usb/gadget/fsl_qe_udc.c
- *
- * Copyright (c) 2006-2008 Freescale Semiconductor, Inc. All rights reserved.
- *
- * 	Xie Xiaobo <X.Xie@freescale.com>
- * 	Li Yang <leoli@freescale.com>
- * 	Based on bareboard code from Shlomi Gridish.
- *
- * Description:
- * Freescle QE/CPM USB Pheripheral Controller Driver
- * The controller can be found on MPC8360, MPC8272, and etc.
- * MPC8360 Rev 1.1 may need QE mircocode update
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation;  either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#undef USB_TRACE
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/err.h>
-#include <linux/slab.h>
-#include <linux/list.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/moduleparam.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/of_platform.h>
-#include <linux/dma-mapping.h>
-#include <linux/usb/ch9.h>
-#include <linux/usb/gadget.h>
-#include <linux/usb/otg.h>
-#include <asm/qe.h>
-#include <asm/cpm.h>
-#include <asm/dma.h>
-#include <asm/reg.h>
-#include "fsl_qe_udc.h"
-
-#define DRIVER_DESC     "Freescale QE/CPM USB Device Controller driver"
-#define DRIVER_AUTHOR   "Xie XiaoBo"
-#define DRIVER_VERSION  "1.0"
-
-#define DMA_ADDR_INVALID        (~(dma_addr_t)0)
-
-static const char driver_name[] = "fsl_qe_udc";
-static const char driver_desc[] = DRIVER_DESC;
-
-/*ep name is important in gadget, it should obey the convention of ep_match()*/
-static const char *const ep_name[] = {
-	"ep0-control", /* everyone has ep0 */
-	/* 3 configurable endpoints */
-	"ep1",
-	"ep2",
-	"ep3",
-};
-
-static struct usb_endpoint_descriptor qe_ep0_desc = {
-	.bLength =		USB_DT_ENDPOINT_SIZE,
-	.bDescriptorType =	USB_DT_ENDPOINT,
-
-	.bEndpointAddress =	0,
-	.bmAttributes =		USB_ENDPOINT_XFER_CONTROL,
-	.wMaxPacketSize =	USB_MAX_CTRL_PAYLOAD,
-};
-
-/********************************************************************
- *      Internal Used Function Start
-********************************************************************/
-/*-----------------------------------------------------------------
- * done() - retire a request; caller blocked irqs
- *--------------------------------------------------------------*/
-static void done(struct qe_ep *ep, struct qe_req *req, int status)
-{
-	struct qe_udc *udc = ep->udc;
-	unsigned char stopped = ep->stopped;
-
-	/* the req->queue pointer is used by ep_queue() func, in which
-	 * the request will be added into a udc_ep->queue 'd tail
-	 * so here the req will be dropped from the ep->queue
-	 */
-	list_del_init(&req->queue);
-
-	/* req.status should be set as -EINPROGRESS in ep_queue() */
-	if (req->req.status == -EINPROGRESS)
-		req->req.status = status;
-	else
-		status = req->req.status;
-
-	if (req->mapped) {
-		dma_unmap_single(udc->gadget.dev.parent,
-			req->req.dma, req->req.length,
-			ep_is_in(ep)
-				? DMA_TO_DEVICE
-				: DMA_FROM_DEVICE);
-		req->req.dma = DMA_ADDR_INVALID;
-		req->mapped = 0;
-	} else
-		dma_sync_single_for_cpu(udc->gadget.dev.parent,
-			req->req.dma, req->req.length,
-			ep_is_in(ep)
-				? DMA_TO_DEVICE
-				: DMA_FROM_DEVICE);
-
-	if (status && (status != -ESHUTDOWN))
-		dev_vdbg(udc->dev, "complete %s req %p stat %d len %u/%u\n",
-			ep->ep.name, &req->req, status,
-			req->req.actual, req->req.length);
-
-	/* don't modify queue heads during completion callback */
-	ep->stopped = 1;
-	spin_unlock(&udc->lock);
-
-	/* this complete() should a func implemented by gadget layer,
-	 * eg fsg->bulk_in_complete() */
-	if (req->req.complete)
-		req->req.complete(&ep->ep, &req->req);
-
-	spin_lock(&udc->lock);
-
-	ep->stopped = stopped;
-}
-
-/*-----------------------------------------------------------------
- * nuke(): delete all requests related to this ep
- *--------------------------------------------------------------*/
-static void nuke(struct qe_ep *ep, int status)
-{
-	/* Whether this eq has request linked */
-	while (!list_empty(&ep->queue)) {
-		struct qe_req *req = NULL;
-		req = list_entry(ep->queue.next, struct qe_req, queue);
-
-		done(ep, req, status);
-	}
-}
-
-/*---------------------------------------------------------------------------*
- * USB and Endpoint manipulate process, include parameter and register       *
- *---------------------------------------------------------------------------*/
-/* @value: 1--set stall 0--clean stall */
-static int qe_eprx_stall_change(struct qe_ep *ep, int value)
-{
-	u16 tem_usep;
-	u8 epnum = ep->epnum;
-	struct qe_udc *udc = ep->udc;
-
-	tem_usep = in_be16(&udc->usb_regs->usb_usep[epnum]);
-	tem_usep = tem_usep & ~USB_RHS_MASK;
-	if (value == 1)
-		tem_usep |= USB_RHS_STALL;
-	else if (ep->dir == USB_DIR_IN)
-		tem_usep |= USB_RHS_IGNORE_OUT;
-
-	out_be16(&udc->usb_regs->usb_usep[epnum], tem_usep);
-	return 0;
-}
-
-static int qe_eptx_stall_change(struct qe_ep *ep, int value)
-{
-	u16 tem_usep;
-	u8 epnum = ep->epnum;
-	struct qe_udc *udc = ep->udc;
-
-	tem_usep = in_be16(&udc->usb_regs->usb_usep[epnum]);
-	tem_usep = tem_usep & ~USB_THS_MASK;
-	if (value == 1)
-		tem_usep |= USB_THS_STALL;
-	else if (ep->dir == USB_DIR_OUT)
-		tem_usep |= USB_THS_IGNORE_IN;
-
-	out_be16(&udc->usb_regs->usb_usep[epnum], tem_usep);
-
-	return 0;
-}
-
-static int qe_ep0_stall(struct qe_udc *udc)
-{
-	qe_eptx_stall_change(&udc->eps[0], 1);
-	qe_eprx_stall_change(&udc->eps[0], 1);
-	udc->ep0_state = WAIT_FOR_SETUP;
-	udc->ep0_dir = 0;
-	return 0;
-}
-
-static int qe_eprx_nack(struct qe_ep *ep)
-{
-	u8 epnum = ep->epnum;
-	struct qe_udc *udc = ep->udc;
-
-	if (ep->state == EP_STATE_IDLE) {
-		/* Set the ep's nack */
-		clrsetbits_be16(&udc->usb_regs->usb_usep[epnum],
-				USB_RHS_MASK, USB_RHS_NACK);
-
-		/* Mask Rx and Busy interrupts */
-		clrbits16(&udc->usb_regs->usb_usbmr,
-				(USB_E_RXB_MASK | USB_E_BSY_MASK));
-
-		ep->state = EP_STATE_NACK;
-	}
-	return 0;
-}
-
-static int qe_eprx_normal(struct qe_ep *ep)
-{
-	struct qe_udc *udc = ep->udc;
-
-	if (ep->state == EP_STATE_NACK) {
-		clrsetbits_be16(&udc->usb_regs->usb_usep[ep->epnum],
-				USB_RTHS_MASK, USB_THS_IGNORE_IN);
-
-		/* Unmask RX interrupts */
-		out_be16(&udc->usb_regs->usb_usber,
-				USB_E_BSY_MASK | USB_E_RXB_MASK);
-		setbits16(&udc->usb_regs->usb_usbmr,
-				(USB_E_RXB_MASK | USB_E_BSY_MASK));
-
-		ep->state = EP_STATE_IDLE;
-		ep->has_data = 0;
-	}
-
-	return 0;
-}
-
-static int qe_ep_cmd_stoptx(struct qe_ep *ep)
-{
-	if (ep->udc->soc_type == PORT_CPM)
-		cpm_command(CPM_USB_STOP_TX | (ep->epnum << CPM_USB_EP_SHIFT),
-				CPM_USB_STOP_TX_OPCODE);
-	else
-		qe_issue_cmd(QE_USB_STOP_TX, QE_CR_SUBBLOCK_USB,
-				ep->epnum, 0);
-
-	return 0;
-}
-
-static int qe_ep_cmd_restarttx(struct qe_ep *ep)
-{
-	if (ep->udc->soc_type == PORT_CPM)
-		cpm_command(CPM_USB_RESTART_TX | (ep->epnum <<
-				CPM_USB_EP_SHIFT), CPM_USB_RESTART_TX_OPCODE);
-	else
-		qe_issue_cmd(QE_USB_RESTART_TX, QE_CR_SUBBLOCK_USB,
-				ep->epnum, 0);
-
-	return 0;
-}
-
-static int qe_ep_flushtxfifo(struct qe_ep *ep)
-{
-	struct qe_udc *udc = ep->udc;
-	int i;
-
-	i = (int)ep->epnum;
-
-	qe_ep_cmd_stoptx(ep);
-	out_8(&udc->usb_regs->usb_uscom,
-		USB_CMD_FLUSH_FIFO | (USB_CMD_EP_MASK & (ep->epnum)));
-	out_be16(&udc->ep_param[i]->tbptr, in_be16(&udc->ep_param[i]->tbase));
-	out_be32(&udc->ep_param[i]->tstate, 0);
-	out_be16(&udc->ep_param[i]->tbcnt, 0);
-
-	ep->c_txbd = ep->txbase;
-	ep->n_txbd = ep->txbase;
-	qe_ep_cmd_restarttx(ep);
-	return 0;
-}
-
-static int qe_ep_filltxfifo(struct qe_ep *ep)
-{
-	struct qe_udc *udc = ep->udc;
-
-	out_8(&udc->usb_regs->usb_uscom,
-			USB_CMD_STR_FIFO | (USB_CMD_EP_MASK & (ep->epnum)));
-	return 0;
-}
-
-static int qe_epbds_reset(struct qe_udc *udc, int pipe_num)
-{
-	struct qe_ep *ep;
-	u32 bdring_len;
-	struct qe_bd __iomem *bd;
-	int i;
-
-	ep = &udc->eps[pipe_num];
-
-	if (ep->dir == USB_DIR_OUT)
-		bdring_len = USB_BDRING_LEN_RX;
-	else
-		bdring_len = USB_BDRING_LEN;
-
-	bd = ep->rxbase;
-	for (i = 0; i < (bdring_len - 1); i++) {
-		out_be32((u32 __iomem *)bd, R_E | R_I);
-		bd++;
-	}
-	out_be32((u32 __iomem *)bd, R_E | R_I | R_W);
-
-	bd = ep->txbase;
-	for (i = 0; i < USB_BDRING_LEN_TX - 1; i++) {
-		out_be32(&bd->buf, 0);
-		out_be32((u32 __iomem *)bd, 0);
-		bd++;
-	}
-	out_be32((u32 __iomem *)bd, T_W);
-
-	return 0;
-}
-
-static int qe_ep_reset(struct qe_udc *udc, int pipe_num)
-{
-	struct qe_ep *ep;
-	u16 tmpusep;
-
-	ep = &udc->eps[pipe_num];
-	tmpusep = in_be16(&udc->usb_regs->usb_usep[pipe_num]);
-	tmpusep &= ~USB_RTHS_MASK;
-
-	switch (ep->dir) {
-	case USB_DIR_BOTH:
-		qe_ep_flushtxfifo(ep);
-		break;
-	case USB_DIR_OUT:
-		tmpusep |= USB_THS_IGNORE_IN;
-		break;
-	case USB_DIR_IN:
-		qe_ep_flushtxfifo(ep);
-		tmpusep |= USB_RHS_IGNORE_OUT;
-		break;
-	default:
-		break;
-	}
-	out_be16(&udc->usb_regs->usb_usep[pipe_num], tmpusep);
-
-	qe_epbds_reset(udc, pipe_num);
-
-	return 0;
-}
-
-static int qe_ep_toggledata01(struct qe_ep *ep)
-{
-	ep->data01 ^= 0x1;
-	return 0;
-}
-
-static int qe_ep_bd_init(struct qe_udc *udc, unsigned char pipe_num)
-{
-	struct qe_ep *ep = &udc->eps[pipe_num];
-	unsigned long tmp_addr = 0;
-	struct usb_ep_para __iomem *epparam;
-	int i;
-	struct qe_bd __iomem *bd;
-	int bdring_len;
-
-	if (ep->dir == USB_DIR_OUT)
-		bdring_len = USB_BDRING_LEN_RX;
-	else
-		bdring_len = USB_BDRING_LEN;
-
-	epparam = udc->ep_param[pipe_num];
-	/* alloc multi-ram for BD rings and set the ep parameters */
-	tmp_addr = cpm_muram_alloc(sizeof(struct qe_bd) * (bdring_len +
-				USB_BDRING_LEN_TX), QE_ALIGNMENT_OF_BD);
-	if (IS_ERR_VALUE(tmp_addr))
-		return -ENOMEM;
-
-	out_be16(&epparam->rbase, (u16)tmp_addr);
-	out_be16(&epparam->tbase, (u16)(tmp_addr +
-				(sizeof(struct qe_bd) * bdring_len)));
-
-	out_be16(&epparam->rbptr, in_be16(&epparam->rbase));
-	out_be16(&epparam->tbptr, in_be16(&epparam->tbase));
-
-	ep->rxbase = cpm_muram_addr(tmp_addr);
-	ep->txbase = cpm_muram_addr(tmp_addr + (sizeof(struct qe_bd)
-				* bdring_len));
-	ep->n_rxbd = ep->rxbase;
-	ep->e_rxbd = ep->rxbase;
-	ep->n_txbd = ep->txbase;
-	ep->c_txbd = ep->txbase;
-	ep->data01 = 0; /* data0 */
-
-	/* Init TX and RX bds */
-	bd = ep->rxbase;
-	for (i = 0; i < bdring_len - 1; i++) {
-		out_be32(&bd->buf, 0);
-		out_be32((u32 __iomem *)bd, 0);
-		bd++;
-	}
-	out_be32(&bd->buf, 0);
-	out_be32((u32 __iomem *)bd, R_W);
-
-	bd = ep->txbase;
-	for (i = 0; i < USB_BDRING_LEN_TX - 1; i++) {
-		out_be32(&bd->buf, 0);
-		out_be32((u32 __iomem *)bd, 0);
-		bd++;
-	}
-	out_be32(&bd->buf, 0);
-	out_be32((u32 __iomem *)bd, T_W);
-
-	return 0;
-}
-
-static int qe_ep_rxbd_update(struct qe_ep *ep)
-{
-	unsigned int size;
-	int i;
-	unsigned int tmp;
-	struct qe_bd __iomem *bd;
-	unsigned int bdring_len;
-
-	if (ep->rxbase == NULL)
-		return -EINVAL;
-
-	bd = ep->rxbase;
-
-	ep->rxframe = kmalloc(sizeof(*ep->rxframe), GFP_ATOMIC);
-	if (ep->rxframe == NULL) {
-		dev_err(ep->udc->dev, "malloc rxframe failed\n");
-		return -ENOMEM;
-	}
-
-	qe_frame_init(ep->rxframe);
-
-	if (ep->dir == USB_DIR_OUT)
-		bdring_len = USB_BDRING_LEN_RX;
-	else
-		bdring_len = USB_BDRING_LEN;
-
-	size = (ep->ep.maxpacket + USB_CRC_SIZE + 2) * (bdring_len + 1);
-	ep->rxbuffer = kzalloc(size, GFP_ATOMIC);
-	if (ep->rxbuffer == NULL) {
-		dev_err(ep->udc->dev, "malloc rxbuffer failed,size=%d\n",
-				size);
-		kfree(ep->rxframe);
-		return -ENOMEM;
-	}
-
-	ep->rxbuf_d = virt_to_phys((void *)ep->rxbuffer);
-	if (ep->rxbuf_d == DMA_ADDR_INVALID) {
-		ep->rxbuf_d = dma_map_single(ep->udc->gadget.dev.parent,
-					ep->rxbuffer,
-					size,
-					DMA_FROM_DEVICE);
-		ep->rxbufmap = 1;
-	} else {
-		dma_sync_single_for_device(ep->udc->gadget.dev.parent,
-					ep->rxbuf_d, size,
-					DMA_FROM_DEVICE);
-		ep->rxbufmap = 0;
-	}
-
-	size = ep->ep.maxpacket + USB_CRC_SIZE + 2;
-	tmp = ep->rxbuf_d;
-	tmp = (u32)(((tmp >> 2) << 2) + 4);
-
-	for (i = 0; i < bdring_len - 1; i++) {
-		out_be32(&bd->buf, tmp);
-		out_be32((u32 __iomem *)bd, (R_E | R_I));
-		tmp = tmp + size;
-		bd++;
-	}
-	out_be32(&bd->buf, tmp);
-	out_be32((u32 __iomem *)bd, (R_E | R_I | R_W));
-
-	return 0;
-}
-
-static int qe_ep_register_init(struct qe_udc *udc, unsigned char pipe_num)
-{
-	struct qe_ep *ep = &udc->eps[pipe_num];
-	struct usb_ep_para __iomem *epparam;
-	u16 usep, logepnum;
-	u16 tmp;
-	u8 rtfcr = 0;
-
-	epparam = udc->ep_param[pipe_num];
-
-	usep = 0;
-	logepnum = (ep->ep.desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
-	usep |= (logepnum << USB_EPNUM_SHIFT);
-
-	switch (ep->ep.desc->bmAttributes & 0x03) {
-	case USB_ENDPOINT_XFER_BULK:
-		usep |= USB_TRANS_BULK;
-		break;
-	case USB_ENDPOINT_XFER_ISOC:
-		usep |=  USB_TRANS_ISO;
-		break;
-	case USB_ENDPOINT_XFER_INT:
-		usep |= USB_TRANS_INT;
-		break;
-	default:
-		usep |= USB_TRANS_CTR;
-		break;
-	}
-
-	switch (ep->dir) {
-	case USB_DIR_OUT:
-		usep |= USB_THS_IGNORE_IN;
-		break;
-	case USB_DIR_IN:
-		usep |= USB_RHS_IGNORE_OUT;
-		break;
-	default:
-		break;
-	}
-	out_be16(&udc->usb_regs->usb_usep[pipe_num], usep);
-
-	rtfcr = 0x30;
-	out_8(&epparam->rbmr, rtfcr);
-	out_8(&epparam->tbmr, rtfcr);
-
-	tmp = (u16)(ep->ep.maxpacket + USB_CRC_SIZE);
-	/* MRBLR must be divisble by 4 */
-	tmp = (u16)(((tmp >> 2) << 2) + 4);
-	out_be16(&epparam->mrblr, tmp);
-
-	return 0;
-}
-
-static int qe_ep_init(struct qe_udc *udc,
-		      unsigned char pipe_num,
-		      const struct usb_endpoint_descriptor *desc)
-{
-	struct qe_ep *ep = &udc->eps[pipe_num];
-	unsigned long flags;
-	int reval = 0;
-	u16 max = 0;
-
-	max = usb_endpoint_maxp(desc);
-
-	/* check the max package size validate for this endpoint */
-	/* Refer to USB2.0 spec table 9-13,
-	*/
-	if (pipe_num != 0) {
-		switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
-		case USB_ENDPOINT_XFER_BULK:
-			if (strstr(ep->ep.name, "-iso")
-					|| strstr(ep->ep.name, "-int"))
-				goto en_done;
-			switch (udc->gadget.speed) {
-			case USB_SPEED_HIGH:
-			if ((max == 128) || (max == 256) || (max == 512))
-				break;
-			default:
-				switch (max) {
-				case 4:
-				case 8:
-				case 16:
-				case 32:
-				case 64:
-					break;
-				default:
-				case USB_SPEED_LOW:
-					goto en_done;
-				}
-			}
-			break;
-		case USB_ENDPOINT_XFER_INT:
-			if (strstr(ep->ep.name, "-iso"))	/* bulk is ok */
-				goto en_done;
-			switch (udc->gadget.speed) {
-			case USB_SPEED_HIGH:
-				if (max <= 1024)
-					break;
-			case USB_SPEED_FULL:
-				if (max <= 64)
-					break;
-			default:
-				if (max <= 8)
-					break;
-				goto en_done;
-			}
-			break;
-		case USB_ENDPOINT_XFER_ISOC:
-			if (strstr(ep->ep.name, "-bulk")
-				|| strstr(ep->ep.name, "-int"))
-				goto en_done;
-			switch (udc->gadget.speed) {
-			case USB_SPEED_HIGH:
-				if (max <= 1024)
-					break;
-			case USB_SPEED_FULL:
-				if (max <= 1023)
-					break;
-			default:
-				goto en_done;
-			}
-			break;
-		case USB_ENDPOINT_XFER_CONTROL:
-			if (strstr(ep->ep.name, "-iso")
-				|| strstr(ep->ep.name, "-int"))
-				goto en_done;
-			switch (udc->gadget.speed) {
-			case USB_SPEED_HIGH:
-			case USB_SPEED_FULL:
-				switch (max) {
-				case 1:
-				case 2:
-				case 4:
-				case 8:
-				case 16:
-				case 32:
-				case 64:
-					break;
-				default:
-					goto en_done;
-				}
-			case USB_SPEED_LOW:
-				switch (max) {
-				case 1:
-				case 2:
-				case 4:
-				case 8:
-					break;
-				default:
-					goto en_done;
-				}
-			default:
-				goto en_done;
-			}
-			break;
-
-		default:
-			goto en_done;
-		}
-	} /* if ep0*/
-
-	spin_lock_irqsave(&udc->lock, flags);
-
-	/* initialize ep structure */
-	ep->ep.maxpacket = max;
-	ep->tm = (u8)(desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK);
-	ep->ep.desc = desc;
-	ep->stopped = 0;
-	ep->init = 1;
-
-	if (pipe_num == 0) {
-		ep->dir = USB_DIR_BOTH;
-		udc->ep0_dir = USB_DIR_OUT;
-		udc->ep0_state = WAIT_FOR_SETUP;
-	} else	{
-		switch (desc->bEndpointAddress & USB_ENDPOINT_DIR_MASK) {
-		case USB_DIR_OUT:
-			ep->dir = USB_DIR_OUT;
-			break;
-		case USB_DIR_IN:
-			ep->dir = USB_DIR_IN;
-		default:
-			break;
-		}
-	}
-
-	/* hardware special operation */
-	qe_ep_bd_init(udc, pipe_num);
-	if ((ep->tm == USBP_TM_CTL) || (ep->dir == USB_DIR_OUT)) {
-		reval = qe_ep_rxbd_update(ep);
-		if (reval)
-			goto en_done1;
-	}
-
-	if ((ep->tm == USBP_TM_CTL) || (ep->dir == USB_DIR_IN)) {
-		ep->txframe = kmalloc(sizeof(*ep->txframe), GFP_ATOMIC);
-		if (ep->txframe == NULL) {
-			dev_err(udc->dev, "malloc txframe failed\n");
-			goto en_done2;
-		}
-		qe_frame_init(ep->txframe);
-	}
-
-	qe_ep_register_init(udc, pipe_num);
-
-	/* Now HW will be NAKing transfers to that EP,
-	 * until a buffer is queued to it. */
-	spin_unlock_irqrestore(&udc->lock, flags);
-
-	return 0;
-en_done2:
-	kfree(ep->rxbuffer);
-	kfree(ep->rxframe);
-en_done1:
-	spin_unlock_irqrestore(&udc->lock, flags);
-en_done:
-	dev_err(udc->dev, "failed to initialize %s\n", ep->ep.name);
-	return -ENODEV;
-}
-
-static inline void qe_usb_enable(struct qe_udc *udc)
-{
-	setbits8(&udc->usb_regs->usb_usmod, USB_MODE_EN);
-}
-
-static inline void qe_usb_disable(struct qe_udc *udc)
-{
-	clrbits8(&udc->usb_regs->usb_usmod, USB_MODE_EN);
-}
-
-/*----------------------------------------------------------------------------*
- *		USB and EP basic manipulate function end		      *
- *----------------------------------------------------------------------------*/
-
-
-/******************************************************************************
-		UDC transmit and receive process
- ******************************************************************************/
-static void recycle_one_rxbd(struct qe_ep *ep)
-{
-	u32 bdstatus;
-
-	bdstatus = in_be32((u32 __iomem *)ep->e_rxbd);
-	bdstatus = R_I | R_E | (bdstatus & R_W);
-	out_be32((u32 __iomem *)ep->e_rxbd, bdstatus);
-
-	if (bdstatus & R_W)
-		ep->e_rxbd = ep->rxbase;
-	else
-		ep->e_rxbd++;
-}
-
-static void recycle_rxbds(struct qe_ep *ep, unsigned char stopatnext)
-{
-	u32 bdstatus;
-	struct qe_bd __iomem *bd, *nextbd;
-	unsigned char stop = 0;
-
-	nextbd = ep->n_rxbd;
-	bd = ep->e_rxbd;
-	bdstatus = in_be32((u32 __iomem *)bd);
-
-	while (!(bdstatus & R_E) && !(bdstatus & BD_LENGTH_MASK) && !stop) {
-		bdstatus = R_E | R_I | (bdstatus & R_W);
-		out_be32((u32 __iomem *)bd, bdstatus);
-
-		if (bdstatus & R_W)
-			bd = ep->rxbase;
-		else
-			bd++;
-
-		bdstatus = in_be32((u32 __iomem *)bd);
-		if (stopatnext && (bd == nextbd))
-			stop = 1;
-	}
-
-	ep->e_rxbd = bd;
-}
-
-static void ep_recycle_rxbds(struct qe_ep *ep)
-{
-	struct qe_bd __iomem *bd = ep->n_rxbd;
-	u32 bdstatus;
-	u8 epnum = ep->epnum;
-	struct qe_udc *udc = ep->udc;
-
-	bdstatus = in_be32((u32 __iomem *)bd);
-	if (!(bdstatus & R_E) && !(bdstatus & BD_LENGTH_MASK)) {
-		bd = ep->rxbase +
-				((in_be16(&udc->ep_param[epnum]->rbptr) -
-				  in_be16(&udc->ep_param[epnum]->rbase))
-				 >> 3);
-		bdstatus = in_be32((u32 __iomem *)bd);
-
-		if (bdstatus & R_W)
-			bd = ep->rxbase;
-		else
-			bd++;
-
-		ep->e_rxbd = bd;
-		recycle_rxbds(ep, 0);
-		ep->e_rxbd = ep->n_rxbd;
-	} else
-		recycle_rxbds(ep, 1);
-
-	if (in_be16(&udc->usb_regs->usb_usber) & USB_E_BSY_MASK)
-		out_be16(&udc->usb_regs->usb_usber, USB_E_BSY_MASK);
-
-	if (ep->has_data <= 0 && (!list_empty(&ep->queue)))
-		qe_eprx_normal(ep);
-
-	ep->localnack = 0;
-}
-
-static void setup_received_handle(struct qe_udc *udc,
-					struct usb_ctrlrequest *setup);
-static int qe_ep_rxframe_handle(struct qe_ep *ep);
-static void ep0_req_complete(struct qe_udc *udc, struct qe_req *req);
-/* when BD PID is setup, handle the packet */
-static int ep0_setup_handle(struct qe_udc *udc)
-{
-	struct qe_ep *ep = &udc->eps[0];
-	struct qe_frame *pframe;
-	unsigned int fsize;
-	u8 *cp;
-
-	pframe = ep->rxframe;
-	if ((frame_get_info(pframe) & PID_SETUP)
-			&& (udc->ep0_state == WAIT_FOR_SETUP)) {
-		fsize = frame_get_length(pframe);
-		if (unlikely(fsize != 8))
-			return -EINVAL;
-		cp = (u8 *)&udc->local_setup_buff;
-		memcpy(cp, pframe->data, fsize);
-		ep->data01 = 1;
-
-		/* handle the usb command base on the usb_ctrlrequest */
-		setup_received_handle(udc, &udc->local_setup_buff);
-		return 0;
-	}
-	return -EINVAL;
-}
-
-static int qe_ep0_rx(struct qe_udc *udc)
-{
-	struct qe_ep *ep = &udc->eps[0];
-	struct qe_frame *pframe;
-	struct qe_bd __iomem *bd;
-	u32 bdstatus, length;
-	u32 vaddr;
-
-	pframe = ep->rxframe;
-
-	if (ep->dir == USB_DIR_IN) {
-		dev_err(udc->dev, "ep0 not a control endpoint\n");
-		return -EINVAL;
-	}
-
-	bd = ep->n_rxbd;
-	bdstatus = in_be32((u32 __iomem *)bd);
-	length = bdstatus & BD_LENGTH_MASK;
-
-	while (!(bdstatus & R_E) && length) {
-		if ((bdstatus & R_F) && (bdstatus & R_L)
-			&& !(bdstatus & R_ERROR)) {
-			if (length == USB_CRC_SIZE) {
-				udc->ep0_state = WAIT_FOR_SETUP;
-				dev_vdbg(udc->dev,
-					"receive a ZLP in status phase\n");
-			} else {
-				qe_frame_clean(pframe);
-				vaddr = (u32)phys_to_virt(in_be32(&bd->buf));
-				frame_set_data(pframe, (u8 *)vaddr);
-				frame_set_length(pframe,
-						(length - USB_CRC_SIZE));
-				frame_set_status(pframe, FRAME_OK);
-				switch (bdstatus & R_PID) {
-				case R_PID_SETUP:
-					frame_set_info(pframe, PID_SETUP);
-					break;
-				case R_PID_DATA1:
-					frame_set_info(pframe, PID_DATA1);
-					break;
-				default:
-					frame_set_info(pframe, PID_DATA0);
-					break;
-				}
-
-				if ((bdstatus & R_PID) == R_PID_SETUP)
-					ep0_setup_handle(udc);
-				else
-					qe_ep_rxframe_handle(ep);
-			}
-		} else {
-			dev_err(udc->dev, "The receive frame with error!\n");
-		}
-
-		/* note: don't clear the rxbd's buffer address */
-		recycle_one_rxbd(ep);
-
-		/* Get next BD */
-		if (bdstatus & R_W)
-			bd = ep->rxbase;
-		else
-			bd++;
-
-		bdstatus = in_be32((u32 __iomem *)bd);
-		length = bdstatus & BD_LENGTH_MASK;
-
-	}
-
-	ep->n_rxbd = bd;
-
-	return 0;
-}
-
-static int qe_ep_rxframe_handle(struct qe_ep *ep)
-{
-	struct qe_frame *pframe;
-	u8 framepid = 0;
-	unsigned int fsize;
-	u8 *cp;
-	struct qe_req *req;
-
-	pframe = ep->rxframe;
-
-	if (frame_get_info(pframe) & PID_DATA1)
-		framepid = 0x1;
-
-	if (framepid != ep->data01) {
-		dev_err(ep->udc->dev, "the data01 error!\n");
-		return -EIO;
-	}
-
-	fsize = frame_get_length(pframe);
-	if (list_empty(&ep->queue)) {
-		dev_err(ep->udc->dev, "the %s have no requeue!\n", ep->name);
-	} else {
-		req = list_entry(ep->queue.next, struct qe_req, queue);
-
-		cp = (u8 *)(req->req.buf) + req->req.actual;
-		if (cp) {
-			memcpy(cp, pframe->data, fsize);
-			req->req.actual += fsize;
-			if ((fsize < ep->ep.maxpacket) ||
-					(req->req.actual >= req->req.length)) {
-				if (ep->epnum == 0)
-					ep0_req_complete(ep->udc, req);
-				else
-					done(ep, req, 0);
-				if (list_empty(&ep->queue) && ep->epnum != 0)
-					qe_eprx_nack(ep);
-			}
-		}
-	}
-
-	qe_ep_toggledata01(ep);
-
-	return 0;
-}
-
-static void ep_rx_tasklet(unsigned long data)
-{
-	struct qe_udc *udc = (struct qe_udc *)data;
-	struct qe_ep *ep;
-	struct qe_frame *pframe;
-	struct qe_bd __iomem *bd;
-	unsigned long flags;
-	u32 bdstatus, length;
-	u32 vaddr, i;
-
-	spin_lock_irqsave(&udc->lock, flags);
-
-	for (i = 1; i < USB_MAX_ENDPOINTS; i++) {
-		ep = &udc->eps[i];
-
-		if (ep->dir == USB_DIR_IN || ep->enable_tasklet == 0) {
-			dev_dbg(udc->dev,
-				"This is a transmit ep or disable tasklet!\n");
-			continue;
-		}
-
-		pframe = ep->rxframe;
-		bd = ep->n_rxbd;
-		bdstatus = in_be32((u32 __iomem *)bd);
-		length = bdstatus & BD_LENGTH_MASK;
-
-		while (!(bdstatus & R_E) && length) {
-			if (list_empty(&ep->queue)) {
-				qe_eprx_nack(ep);
-				dev_dbg(udc->dev,
-					"The rxep have noreq %d\n",
-					ep->has_data);
-				break;
-			}
-
-			if ((bdstatus & R_F) && (bdstatus & R_L)
-				&& !(bdstatus & R_ERROR)) {
-				qe_frame_clean(pframe);
-				vaddr = (u32)phys_to_virt(in_be32(&bd->buf));
-				frame_set_data(pframe, (u8 *)vaddr);
-				frame_set_length(pframe,
-						(length - USB_CRC_SIZE));
-				frame_set_status(pframe, FRAME_OK);
-				switch (bdstatus & R_PID) {
-				case R_PID_DATA1:
-					frame_set_info(pframe, PID_DATA1);
-					break;
-				case R_PID_SETUP:
-					frame_set_info(pframe, PID_SETUP);
-					break;
-				default:
-					frame_set_info(pframe, PID_DATA0);
-					break;
-				}
-				/* handle the rx frame */
-				qe_ep_rxframe_handle(ep);
-			} else {
-				dev_err(udc->dev,
-					"error in received frame\n");
-			}
-			/* note: don't clear the rxbd's buffer address */
-			/*clear the length */
-			out_be32((u32 __iomem *)bd, bdstatus & BD_STATUS_MASK);
-			ep->has_data--;
-			if (!(ep->localnack))
-				recycle_one_rxbd(ep);
-
-			/* Get next BD */
-			if (bdstatus & R_W)
-				bd = ep->rxbase;
-			else
-				bd++;
-
-			bdstatus = in_be32((u32 __iomem *)bd);
-			length = bdstatus & BD_LENGTH_MASK;
-		}
-
-		ep->n_rxbd = bd;
-
-		if (ep->localnack)
-			ep_recycle_rxbds(ep);
-
-		ep->enable_tasklet = 0;
-	} /* for i=1 */
-
-	spin_unlock_irqrestore(&udc->lock, flags);
-}
-
-static int qe_ep_rx(struct qe_ep *ep)
-{
-	struct qe_udc *udc;
-	struct qe_frame *pframe;
-	struct qe_bd __iomem *bd;
-	u16 swoffs, ucoffs, emptybds;
-
-	udc = ep->udc;
-	pframe = ep->rxframe;
-
-	if (ep->dir == USB_DIR_IN) {
-		dev_err(udc->dev, "transmit ep in rx function\n");
-		return -EINVAL;
-	}
-
-	bd = ep->n_rxbd;
-
-	swoffs = (u16)(bd - ep->rxbase);
-	ucoffs = (u16)((in_be16(&udc->ep_param[ep->epnum]->rbptr) -
-			in_be16(&udc->ep_param[ep->epnum]->rbase)) >> 3);
-	if (swoffs < ucoffs)
-		emptybds = USB_BDRING_LEN_RX - ucoffs + swoffs;
-	else
-		emptybds = swoffs - ucoffs;
-
-	if (emptybds < MIN_EMPTY_BDS) {
-		qe_eprx_nack(ep);
-		ep->localnack = 1;
-		dev_vdbg(udc->dev, "%d empty bds, send NACK\n", emptybds);
-	}
-	ep->has_data = USB_BDRING_LEN_RX - emptybds;
-
-	if (list_empty(&ep->queue)) {
-		qe_eprx_nack(ep);
-		dev_vdbg(udc->dev, "The rxep have no req queued with %d BDs\n",
-				ep->has_data);
-		return 0;
-	}
-
-	tasklet_schedule(&udc->rx_tasklet);
-	ep->enable_tasklet = 1;
-
-	return 0;
-}
-
-/* send data from a frame, no matter what tx_req */
-static int qe_ep_tx(struct qe_ep *ep, struct qe_frame *frame)
-{
-	struct qe_udc *udc = ep->udc;
-	struct qe_bd __iomem *bd;
-	u16 saveusbmr;
-	u32 bdstatus, pidmask;
-	u32 paddr;
-
-	if (ep->dir == USB_DIR_OUT) {
-		dev_err(udc->dev, "receive ep passed to tx function\n");
-		return -EINVAL;
-	}
-
-	/* Disable the Tx interrupt */
-	saveusbmr = in_be16(&udc->usb_regs->usb_usbmr);
-	out_be16(&udc->usb_regs->usb_usbmr,
-			saveusbmr & ~(USB_E_TXB_MASK | USB_E_TXE_MASK));
-
-	bd = ep->n_txbd;
-	bdstatus = in_be32((u32 __iomem *)bd);
-
-	if (!(bdstatus & (T_R | BD_LENGTH_MASK))) {
-		if (frame_get_length(frame) == 0) {
-			frame_set_data(frame, udc->nullbuf);
-			frame_set_length(frame, 2);
-			frame->info |= (ZLP | NO_CRC);
-			dev_vdbg(udc->dev, "the frame size = 0\n");
-		}
-		paddr = virt_to_phys((void *)frame->data);
-		out_be32(&bd->buf, paddr);
-		bdstatus = (bdstatus&T_W);
-		if (!(frame_get_info(frame) & NO_CRC))
-			bdstatus |= T_R | T_I | T_L | T_TC
-					| frame_get_length(frame);
-		else
-			bdstatus |= T_R | T_I | T_L | frame_get_length(frame);
-
-		/* if the packet is a ZLP in status phase */
-		if ((ep->epnum == 0) && (udc->ep0_state == DATA_STATE_NEED_ZLP))
-			ep->data01 = 0x1;
-
-		if (ep->data01) {
-			pidmask = T_PID_DATA1;
-			frame->info |= PID_DATA1;
-		} else {
-			pidmask = T_PID_DATA0;
-			frame->info |= PID_DATA0;
-		}
-		bdstatus |= T_CNF;
-		bdstatus |= pidmask;
-		out_be32((u32 __iomem *)bd, bdstatus);
-		qe_ep_filltxfifo(ep);
-
-		/* enable the TX interrupt */
-		out_be16(&udc->usb_regs->usb_usbmr, saveusbmr);
-
-		qe_ep_toggledata01(ep);
-		if (bdstatus & T_W)
-			ep->n_txbd = ep->txbase;
-		else
-			ep->n_txbd++;
-
-		return 0;
-	} else {
-		out_be16(&udc->usb_regs->usb_usbmr, saveusbmr);
-		dev_vdbg(udc->dev, "The tx bd is not ready!\n");
-		return -EBUSY;
-	}
-}
-
-/* when a bd was transmitted, the function can
- * handle the tx_req, not include ep0           */
-static int txcomplete(struct qe_ep *ep, unsigned char restart)
-{
-	if (ep->tx_req != NULL) {
-		struct qe_req *req = ep->tx_req;
-		unsigned zlp = 0, last_len = 0;
-
-		last_len = min_t(unsigned, req->req.length - ep->sent,
-				ep->ep.maxpacket);
-
-		if (!restart) {
-			int asent = ep->last;
-			ep->sent += asent;
-			ep->last -= asent;
-		} else {
-			ep->last = 0;
-		}
-
-		/* zlp needed when req->re.zero is set */
-		if (req->req.zero) {
-			if (last_len == 0 ||
-				(req->req.length % ep->ep.maxpacket) != 0)
-				zlp = 0;
-			else
-				zlp = 1;
-		} else
-			zlp = 0;
-
-		/* a request already were transmitted completely */
-		if (((ep->tx_req->req.length - ep->sent) <= 0) && !zlp) {
-			done(ep, ep->tx_req, 0);
-			ep->tx_req = NULL;
-			ep->last = 0;
-			ep->sent = 0;
-		}
-	}
-
-	/* we should gain a new tx_req fot this endpoint */
-	if (ep->tx_req == NULL) {
-		if (!list_empty(&ep->queue)) {
-			ep->tx_req = list_entry(ep->queue.next,	struct qe_req,
-							queue);
-			ep->last = 0;
-			ep->sent = 0;
-		}
-	}
-
-	return 0;
-}
-
-/* give a frame and a tx_req, send some data */
-static int qe_usb_senddata(struct qe_ep *ep, struct qe_frame *frame)
-{
-	unsigned int size;
-	u8 *buf;
-
-	qe_frame_clean(frame);
-	size = min_t(u32, (ep->tx_req->req.length - ep->sent),
-				ep->ep.maxpacket);
-	buf = (u8 *)ep->tx_req->req.buf + ep->sent;
-	if (buf && size) {
-		ep->last = size;
-		ep->tx_req->req.actual += size;
-		frame_set_data(frame, buf);
-		frame_set_length(frame, size);
-		frame_set_status(frame, FRAME_OK);
-		frame_set_info(frame, 0);
-		return qe_ep_tx(ep, frame);
-	}
-	return -EIO;
-}
-
-/* give a frame struct,send a ZLP */
-static int sendnulldata(struct qe_ep *ep, struct qe_frame *frame, uint infor)
-{
-	struct qe_udc *udc = ep->udc;
-
-	if (frame == NULL)
-		return -ENODEV;
-
-	qe_frame_clean(frame);
-	frame_set_data(frame, (u8 *)udc->nullbuf);
-	frame_set_length(frame, 2);
-	frame_set_status(frame, FRAME_OK);
-	frame_set_info(frame, (ZLP | NO_CRC | infor));
-
-	return qe_ep_tx(ep, frame);
-}
-
-static int frame_create_tx(struct qe_ep *ep, struct qe_frame *frame)
-{
-	struct qe_req *req = ep->tx_req;
-	int reval;
-
-	if (req == NULL)
-		return -ENODEV;
-
-	if ((req->req.length - ep->sent) > 0)
-		reval = qe_usb_senddata(ep, frame);
-	else
-		reval = sendnulldata(ep, frame, 0);
-
-	return reval;
-}
-
-/* if direction is DIR_IN, the status is Device->Host
- * if direction is DIR_OUT, the status transaction is Device<-Host
- * in status phase, udc create a request and gain status */
-static int ep0_prime_status(struct qe_udc *udc, int direction)
-{
-
-	struct qe_ep *ep = &udc->eps[0];
-
-	if (direction == USB_DIR_IN) {
-		udc->ep0_state = DATA_STATE_NEED_ZLP;
-		udc->ep0_dir = USB_DIR_IN;
-		sendnulldata(ep, ep->txframe, SETUP_STATUS | NO_REQ);
-	} else {
-		udc->ep0_dir = USB_DIR_OUT;
-		udc->ep0_state = WAIT_FOR_OUT_STATUS;
-	}
-
-	return 0;
-}
-
-/* a request complete in ep0, whether gadget request or udc request */
-static void ep0_req_complete(struct qe_udc *udc, struct qe_req *req)
-{
-	struct qe_ep *ep = &udc->eps[0];
-	/* because usb and ep's status already been set in ch9setaddress() */
-
-	switch (udc->ep0_state) {
-	case DATA_STATE_XMIT:
-		done(ep, req, 0);
-		/* receive status phase */
-		if (ep0_prime_status(udc, USB_DIR_OUT))
-			qe_ep0_stall(udc);
-		break;
-
-	case DATA_STATE_NEED_ZLP:
-		done(ep, req, 0);
-		udc->ep0_state = WAIT_FOR_SETUP;
-		break;
-
-	case DATA_STATE_RECV:
-		done(ep, req, 0);
-		/* send status phase */
-		if (ep0_prime_status(udc, USB_DIR_IN))
-			qe_ep0_stall(udc);
-		break;
-
-	case WAIT_FOR_OUT_STATUS:
-		done(ep, req, 0);
-		udc->ep0_state = WAIT_FOR_SETUP;
-		break;
-
-	case WAIT_FOR_SETUP:
-		dev_vdbg(udc->dev, "Unexpected interrupt\n");
-		break;
-
-	default:
-		qe_ep0_stall(udc);
-		break;
-	}
-}
-
-static int ep0_txcomplete(struct qe_ep *ep, unsigned char restart)
-{
-	struct qe_req *tx_req = NULL;
-	struct qe_frame *frame = ep->txframe;
-
-	if ((frame_get_info(frame) & (ZLP | NO_REQ)) == (ZLP | NO_REQ)) {
-		if (!restart)
-			ep->udc->ep0_state = WAIT_FOR_SETUP;
-		else
-			sendnulldata(ep, ep->txframe, SETUP_STATUS | NO_REQ);
-		return 0;
-	}
-
-	tx_req = ep->tx_req;
-	if (tx_req != NULL) {
-		if (!restart) {
-			int asent = ep->last;
-			ep->sent += asent;
-			ep->last -= asent;
-		} else {
-			ep->last = 0;
-		}
-
-		/* a request already were transmitted completely */
-		if ((ep->tx_req->req.length - ep->sent) <= 0) {
-			ep->tx_req->req.actual = (unsigned int)ep->sent;
-			ep0_req_complete(ep->udc, ep->tx_req);
-			ep->tx_req = NULL;
-			ep->last = 0;
-			ep->sent = 0;
-		}
-	} else {
-		dev_vdbg(ep->udc->dev, "the ep0_controller have no req\n");
-	}
-
-	return 0;
-}
-
-static int ep0_txframe_handle(struct qe_ep *ep)
-{
-	/* if have error, transmit again */
-	if (frame_get_status(ep->txframe) & FRAME_ERROR) {
-		qe_ep_flushtxfifo(ep);
-		dev_vdbg(ep->udc->dev, "The EP0 transmit data have error!\n");
-		if (frame_get_info(ep->txframe) & PID_DATA0)
-			ep->data01 = 0;
-		else
-			ep->data01 = 1;
-
-		ep0_txcomplete(ep, 1);
-	} else
-		ep0_txcomplete(ep, 0);
-
-	frame_create_tx(ep, ep->txframe);
-	return 0;
-}
-
-static int qe_ep0_txconf(struct qe_ep *ep)
-{
-	struct qe_bd __iomem *bd;
-	struct qe_frame *pframe;
-	u32 bdstatus;
-
-	bd = ep->c_txbd;
-	bdstatus = in_be32((u32 __iomem *)bd);
-	while (!(bdstatus & T_R) && (bdstatus & ~T_W)) {
-		pframe = ep->txframe;
-
-		/* clear and recycle the BD */
-		out_be32((u32 __iomem *)bd, bdstatus & T_W);
-		out_be32(&bd->buf, 0);
-		if (bdstatus & T_W)
-			ep->c_txbd = ep->txbase;
-		else
-			ep->c_txbd++;
-
-		if (ep->c_txbd == ep->n_txbd) {
-			if (bdstatus & DEVICE_T_ERROR) {
-				frame_set_status(pframe, FRAME_ERROR);
-				if (bdstatus & T_TO)
-					pframe->status |= TX_ER_TIMEOUT;
-				if (bdstatus & T_UN)
-					pframe->status |= TX_ER_UNDERUN;
-			}
-			ep0_txframe_handle(ep);
-		}
-
-		bd = ep->c_txbd;
-		bdstatus = in_be32((u32 __iomem *)bd);
-	}
-
-	return 0;
-}
-
-static int ep_txframe_handle(struct qe_ep *ep)
-{
-	if (frame_get_status(ep->txframe) & FRAME_ERROR) {
-		qe_ep_flushtxfifo(ep);
-		dev_vdbg(ep->udc->dev, "The EP0 transmit data have error!\n");
-		if (frame_get_info(ep->txframe) & PID_DATA0)
-			ep->data01 = 0;
-		else
-			ep->data01 = 1;
-
-		txcomplete(ep, 1);
-	} else
-		txcomplete(ep, 0);
-
-	frame_create_tx(ep, ep->txframe); /* send the data */
-	return 0;
-}
-
-/* confirm the already trainsmited bd */
-static int qe_ep_txconf(struct qe_ep *ep)
-{
-	struct qe_bd __iomem *bd;
-	struct qe_frame *pframe = NULL;
-	u32 bdstatus;
-	unsigned char breakonrxinterrupt = 0;
-
-	bd = ep->c_txbd;
-	bdstatus = in_be32((u32 __iomem *)bd);
-	while (!(bdstatus & T_R) && (bdstatus & ~T_W)) {
-		pframe = ep->txframe;
-		if (bdstatus & DEVICE_T_ERROR) {
-			frame_set_status(pframe, FRAME_ERROR);
-			if (bdstatus & T_TO)
-				pframe->status |= TX_ER_TIMEOUT;
-			if (bdstatus & T_UN)
-				pframe->status |= TX_ER_UNDERUN;
-		}
-
-		/* clear and recycle the BD */
-		out_be32((u32 __iomem *)bd, bdstatus & T_W);
-		out_be32(&bd->buf, 0);
-		if (bdstatus & T_W)
-			ep->c_txbd = ep->txbase;
-		else
-			ep->c_txbd++;
-
-		/* handle the tx frame */
-		ep_txframe_handle(ep);
-		bd = ep->c_txbd;
-		bdstatus = in_be32((u32 __iomem *)bd);
-	}
-	if (breakonrxinterrupt)
-		return -EIO;
-	else
-		return 0;
-}
-
-/* Add a request in queue, and try to transmit a packet */
-static int ep_req_send(struct qe_ep *ep, struct qe_req *req)
-{
-	int reval = 0;
-
-	if (ep->tx_req == NULL) {
-		ep->sent = 0;
-		ep->last = 0;
-		txcomplete(ep, 0); /* can gain a new tx_req */
-		reval = frame_create_tx(ep, ep->txframe);
-	}
-	return reval;
-}
-
-/* Maybe this is a good ideal */
-static int ep_req_rx(struct qe_ep *ep, struct qe_req *req)
-{
-	struct qe_udc *udc = ep->udc;
-	struct qe_frame *pframe = NULL;
-	struct qe_bd __iomem *bd;
-	u32 bdstatus, length;
-	u32 vaddr, fsize;
-	u8 *cp;
-	u8 finish_req = 0;
-	u8 framepid;
-
-	if (list_empty(&ep->queue)) {
-		dev_vdbg(udc->dev, "the req already finish!\n");
-		return 0;
-	}
-	pframe = ep->rxframe;
-
-	bd = ep->n_rxbd;
-	bdstatus = in_be32((u32 __iomem *)bd);
-	length = bdstatus & BD_LENGTH_MASK;
-
-	while (!(bdstatus & R_E) && length) {
-		if (finish_req)
-			break;
-		if ((bdstatus & R_F) && (bdstatus & R_L)
-					&& !(bdstatus & R_ERROR)) {
-			qe_frame_clean(pframe);
-			vaddr = (u32)phys_to_virt(in_be32(&bd->buf));
-			frame_set_data(pframe, (u8 *)vaddr);
-			frame_set_length(pframe, (length - USB_CRC_SIZE));
-			frame_set_status(pframe, FRAME_OK);
-			switch (bdstatus & R_PID) {
-			case R_PID_DATA1:
-				frame_set_info(pframe, PID_DATA1); break;
-			default:
-				frame_set_info(pframe, PID_DATA0); break;
-			}
-			/* handle the rx frame */
-
-			if (frame_get_info(pframe) & PID_DATA1)
-				framepid = 0x1;
-			else
-				framepid = 0;
-
-			if (framepid != ep->data01) {
-				dev_vdbg(udc->dev, "the data01 error!\n");
-			} else {
-				fsize = frame_get_length(pframe);
-
-				cp = (u8 *)(req->req.buf) + req->req.actual;
-				if (cp) {
-					memcpy(cp, pframe->data, fsize);
-					req->req.actual += fsize;
-					if ((fsize < ep->ep.maxpacket)
-						|| (req->req.actual >=
-							req->req.length)) {
-						finish_req = 1;
-						done(ep, req, 0);
-						if (list_empty(&ep->queue))
-							qe_eprx_nack(ep);
-					}
-				}
-				qe_ep_toggledata01(ep);
-			}
-		} else {
-			dev_err(udc->dev, "The receive frame with error!\n");
-		}
-
-		/* note: don't clear the rxbd's buffer address *
-		 * only Clear the length */
-		out_be32((u32 __iomem *)bd, (bdstatus & BD_STATUS_MASK));
-		ep->has_data--;
-
-		/* Get next BD */
-		if (bdstatus & R_W)
-			bd = ep->rxbase;
-		else
-			bd++;
-
-		bdstatus = in_be32((u32 __iomem *)bd);
-		length = bdstatus & BD_LENGTH_MASK;
-	}
-
-	ep->n_rxbd = bd;
-	ep_recycle_rxbds(ep);
-
-	return 0;
-}
-
-/* only add the request in queue */
-static int ep_req_receive(struct qe_ep *ep, struct qe_req *req)
-{
-	if (ep->state == EP_STATE_NACK) {
-		if (ep->has_data <= 0) {
-			/* Enable rx and unmask rx interrupt */
-			qe_eprx_normal(ep);
-		} else {
-			/* Copy the exist BD data */
-			ep_req_rx(ep, req);
-		}
-	}
-
-	return 0;
-}
-
-/********************************************************************
-	Internal Used Function End
-********************************************************************/
-
-/*-----------------------------------------------------------------------
-	Endpoint Management Functions For Gadget
- -----------------------------------------------------------------------*/
-static int qe_ep_enable(struct usb_ep *_ep,
-			 const struct usb_endpoint_descriptor *desc)
-{
-	struct qe_udc *udc;
-	struct qe_ep *ep;
-	int retval = 0;
-	unsigned char epnum;
-
-	ep = container_of(_ep, struct qe_ep, ep);
-
-	/* catch various bogus parameters */
-	if (!_ep || !desc || _ep->name == ep_name[0] ||
-			(desc->bDescriptorType != USB_DT_ENDPOINT))
-		return -EINVAL;
-
-	udc = ep->udc;
-	if (!udc->driver || (udc->gadget.speed == USB_SPEED_UNKNOWN))
-		return -ESHUTDOWN;
-
-	epnum = (u8)desc->bEndpointAddress & 0xF;
-
-	retval = qe_ep_init(udc, epnum, desc);
-	if (retval != 0) {
-		cpm_muram_free(cpm_muram_offset(ep->rxbase));
-		dev_dbg(udc->dev, "enable ep%d failed\n", ep->epnum);
-		return -EINVAL;
-	}
-	dev_dbg(udc->dev, "enable ep%d successful\n", ep->epnum);
-	return 0;
-}
-
-static int qe_ep_disable(struct usb_ep *_ep)
-{
-	struct qe_udc *udc;
-	struct qe_ep *ep;
-	unsigned long flags;
-	unsigned int size;
-
-	ep = container_of(_ep, struct qe_ep, ep);
-	udc = ep->udc;
-
-	if (!_ep || !ep->ep.desc) {
-		dev_dbg(udc->dev, "%s not enabled\n", _ep ? ep->ep.name : NULL);
-		return -EINVAL;
-	}
-
-	spin_lock_irqsave(&udc->lock, flags);
-	/* Nuke all pending requests (does flush) */
-	nuke(ep, -ESHUTDOWN);
-	ep->ep.desc = NULL;
-	ep->stopped = 1;
-	ep->tx_req = NULL;
-	qe_ep_reset(udc, ep->epnum);
-	spin_unlock_irqrestore(&udc->lock, flags);
-
-	cpm_muram_free(cpm_muram_offset(ep->rxbase));
-
-	if (ep->dir == USB_DIR_OUT)
-		size = (ep->ep.maxpacket + USB_CRC_SIZE + 2) *
-				(USB_BDRING_LEN_RX + 1);
-	else
-		size = (ep->ep.maxpacket + USB_CRC_SIZE + 2) *
-				(USB_BDRING_LEN + 1);
-
-	if (ep->dir != USB_DIR_IN) {
-		kfree(ep->rxframe);
-		if (ep->rxbufmap) {
-			dma_unmap_single(udc->gadget.dev.parent,
-					ep->rxbuf_d, size,
-					DMA_FROM_DEVICE);
-			ep->rxbuf_d = DMA_ADDR_INVALID;
-		} else {
-			dma_sync_single_for_cpu(
-					udc->gadget.dev.parent,
-					ep->rxbuf_d, size,
-					DMA_FROM_DEVICE);
-		}
-		kfree(ep->rxbuffer);
-	}
-
-	if (ep->dir != USB_DIR_OUT)
-		kfree(ep->txframe);
-
-	dev_dbg(udc->dev, "disabled %s OK\n", _ep->name);
-	return 0;
-}
-
-static struct usb_request *qe_alloc_request(struct usb_ep *_ep,	gfp_t gfp_flags)
-{
-	struct qe_req *req;
-
-	req = kzalloc(sizeof(*req), gfp_flags);
-	if (!req)
-		return NULL;
-
-	req->req.dma = DMA_ADDR_INVALID;
-
-	INIT_LIST_HEAD(&req->queue);
-
-	return &req->req;
-}
-
-static void qe_free_request(struct usb_ep *_ep, struct usb_request *_req)
-{
-	struct qe_req *req;
-
-	req = container_of(_req, struct qe_req, req);
-
-	if (_req)
-		kfree(req);
-}
-
-static int __qe_ep_queue(struct usb_ep *_ep, struct usb_request *_req)
-{
-	struct qe_ep *ep = container_of(_ep, struct qe_ep, ep);
-	struct qe_req *req = container_of(_req, struct qe_req, req);
-	struct qe_udc *udc;
-	int reval;
-
-	udc = ep->udc;
-	/* catch various bogus parameters */
-	if (!_req || !req->req.complete || !req->req.buf
-			|| !list_empty(&req->queue)) {
-		dev_dbg(udc->dev, "bad params\n");
-		return -EINVAL;
-	}
-	if (!_ep || (!ep->ep.desc && ep_index(ep))) {
-		dev_dbg(udc->dev, "bad ep\n");
-		return -EINVAL;
-	}
-
-	if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN)
-		return -ESHUTDOWN;
-
-	req->ep = ep;
-
-	/* map virtual address to hardware */
-	if (req->req.dma == DMA_ADDR_INVALID) {
-		req->req.dma = dma_map_single(ep->udc->gadget.dev.parent,
-					req->req.buf,
-					req->req.length,
-					ep_is_in(ep)
-					? DMA_TO_DEVICE :
-					DMA_FROM_DEVICE);
-		req->mapped = 1;
-	} else {
-		dma_sync_single_for_device(ep->udc->gadget.dev.parent,
-					req->req.dma, req->req.length,
-					ep_is_in(ep)
-					? DMA_TO_DEVICE :
-					DMA_FROM_DEVICE);
-		req->mapped = 0;
-	}
-
-	req->req.status = -EINPROGRESS;
-	req->req.actual = 0;
-
-	list_add_tail(&req->queue, &ep->queue);
-	dev_vdbg(udc->dev, "gadget have request in %s! %d\n",
-			ep->name, req->req.length);
-
-	/* push the request to device */
-	if (ep_is_in(ep))
-		reval = ep_req_send(ep, req);
-
-	/* EP0 */
-	if (ep_index(ep) == 0 && req->req.length > 0) {
-		if (ep_is_in(ep))
-			udc->ep0_state = DATA_STATE_XMIT;
-		else
-			udc->ep0_state = DATA_STATE_RECV;
-	}
-
-	if (ep->dir == USB_DIR_OUT)
-		reval = ep_req_receive(ep, req);
-
-	return 0;
-}
-
-/* queues (submits) an I/O request to an endpoint */
-static int qe_ep_queue(struct usb_ep *_ep, struct usb_request *_req,
-		       gfp_t gfp_flags)
-{
-	struct qe_ep *ep = container_of(_ep, struct qe_ep, ep);
-	struct qe_udc *udc = ep->udc;
-	unsigned long flags;
-	int ret;
-
-	spin_lock_irqsave(&udc->lock, flags);
-	ret = __qe_ep_queue(_ep, _req);
-	spin_unlock_irqrestore(&udc->lock, flags);
-	return ret;
-}
-
-/* dequeues (cancels, unlinks) an I/O request from an endpoint */
-static int qe_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req)
-{
-	struct qe_ep *ep = container_of(_ep, struct qe_ep, ep);
-	struct qe_req *req;
-	unsigned long flags;
-
-	if (!_ep || !_req)
-		return -EINVAL;
-
-	spin_lock_irqsave(&ep->udc->lock, flags);
-
-	/* make sure it's actually queued on this endpoint */
-	list_for_each_entry(req, &ep->queue, queue) {
-		if (&req->req == _req)
-			break;
-	}
-
-	if (&req->req != _req) {
-		spin_unlock_irqrestore(&ep->udc->lock, flags);
-		return -EINVAL;
-	}
-
-	done(ep, req, -ECONNRESET);
-
-	spin_unlock_irqrestore(&ep->udc->lock, flags);
-	return 0;
-}
-
-/*-----------------------------------------------------------------
- * modify the endpoint halt feature
- * @ep: the non-isochronous endpoint being stalled
- * @value: 1--set halt  0--clear halt
- * Returns zero, or a negative error code.
-*----------------------------------------------------------------*/
-static int qe_ep_set_halt(struct usb_ep *_ep, int value)
-{
-	struct qe_ep *ep;
-	unsigned long flags;
-	int status = -EOPNOTSUPP;
-	struct qe_udc *udc;
-
-	ep = container_of(_ep, struct qe_ep, ep);
-	if (!_ep || !ep->ep.desc) {
-		status = -EINVAL;
-		goto out;
-	}
-
-	udc = ep->udc;
-	/* Attempt to halt IN ep will fail if any transfer requests
-	 * are still queue */
-	if (value && ep_is_in(ep) && !list_empty(&ep->queue)) {
-		status = -EAGAIN;
-		goto out;
-	}
-
-	status = 0;
-	spin_lock_irqsave(&ep->udc->lock, flags);
-	qe_eptx_stall_change(ep, value);
-	qe_eprx_stall_change(ep, value);
-	spin_unlock_irqrestore(&ep->udc->lock, flags);
-
-	if (ep->epnum == 0) {
-		udc->ep0_state = WAIT_FOR_SETUP;
-		udc->ep0_dir = 0;
-	}
-
-	/* set data toggle to DATA0 on clear halt */
-	if (value == 0)
-		ep->data01 = 0;
-out:
-	dev_vdbg(udc->dev, "%s %s halt stat %d\n", ep->ep.name,
-			value ?  "set" : "clear", status);
-
-	return status;
-}
-
-static struct usb_ep_ops qe_ep_ops = {
-	.enable = qe_ep_enable,
-	.disable = qe_ep_disable,
-
-	.alloc_request = qe_alloc_request,
-	.free_request = qe_free_request,
-
-	.queue = qe_ep_queue,
-	.dequeue = qe_ep_dequeue,
-
-	.set_halt = qe_ep_set_halt,
-};
-
-/*------------------------------------------------------------------------
-	Gadget Driver Layer Operations
- ------------------------------------------------------------------------*/
-
-/* Get the current frame number */
-static int qe_get_frame(struct usb_gadget *gadget)
-{
-	struct qe_udc *udc = container_of(gadget, struct qe_udc, gadget);
-	u16 tmp;
-
-	tmp = in_be16(&udc->usb_param->frame_n);
-	if (tmp & 0x8000)
-		tmp = tmp & 0x07ff;
-	else
-		tmp = -EINVAL;
-
-	return (int)tmp;
-}
-
-static int fsl_qe_start(struct usb_gadget *gadget,
-		struct usb_gadget_driver *driver);
-static int fsl_qe_stop(struct usb_gadget *gadget,
-		struct usb_gadget_driver *driver);
-
-/* defined in usb_gadget.h */
-static const struct usb_gadget_ops qe_gadget_ops = {
-	.get_frame = qe_get_frame,
-	.udc_start = fsl_qe_start,
-	.udc_stop = fsl_qe_stop,
-};
-
-/*-------------------------------------------------------------------------
-	USB ep0 Setup process in BUS Enumeration
- -------------------------------------------------------------------------*/
-static int udc_reset_ep_queue(struct qe_udc *udc, u8 pipe)
-{
-	struct qe_ep *ep = &udc->eps[pipe];
-
-	nuke(ep, -ECONNRESET);
-	ep->tx_req = NULL;
-	return 0;
-}
-
-static int reset_queues(struct qe_udc *udc)
-{
-	u8 pipe;
-
-	for (pipe = 0; pipe < USB_MAX_ENDPOINTS; pipe++)
-		udc_reset_ep_queue(udc, pipe);
-
-	/* report disconnect; the driver is already quiesced */
-	spin_unlock(&udc->lock);
-	udc->driver->disconnect(&udc->gadget);
-	spin_lock(&udc->lock);
-
-	return 0;
-}
-
-static void ch9setaddress(struct qe_udc *udc, u16 value, u16 index,
-			u16 length)
-{
-	/* Save the new address to device struct */
-	udc->device_address = (u8) value;
-	/* Update usb state */
-	udc->usb_state = USB_STATE_ADDRESS;
-
-	/* Status phase , send a ZLP */
-	if (ep0_prime_status(udc, USB_DIR_IN))
-		qe_ep0_stall(udc);
-}
-
-static void ownercomplete(struct usb_ep *_ep, struct usb_request *_req)
-{
-	struct qe_req *req = container_of(_req, struct qe_req, req);
-
-	req->req.buf = NULL;
-	kfree(req);
-}
-
-static void ch9getstatus(struct qe_udc *udc, u8 request_type, u16 value,
-			u16 index, u16 length)
-{
-	u16 usb_status = 0;
-	struct qe_req *req;
-	struct qe_ep *ep;
-	int status = 0;
-
-	ep = &udc->eps[0];
-	if ((request_type & USB_RECIP_MASK) == USB_RECIP_DEVICE) {
-		/* Get device status */
-		usb_status = 1 << USB_DEVICE_SELF_POWERED;
-	} else if ((request_type & USB_RECIP_MASK) == USB_RECIP_INTERFACE) {
-		/* Get interface status */
-		/* We don't have interface information in udc driver */
-		usb_status = 0;
-	} else if ((request_type & USB_RECIP_MASK) == USB_RECIP_ENDPOINT) {
-		/* Get endpoint status */
-		int pipe = index & USB_ENDPOINT_NUMBER_MASK;
-		struct qe_ep *target_ep = &udc->eps[pipe];
-		u16 usep;
-
-		/* stall if endpoint doesn't exist */
-		if (!target_ep->ep.desc)
-			goto stall;
-
-		usep = in_be16(&udc->usb_regs->usb_usep[pipe]);
-		if (index & USB_DIR_IN) {
-			if (target_ep->dir != USB_DIR_IN)
-				goto stall;
-			if ((usep & USB_THS_MASK) == USB_THS_STALL)
-				usb_status = 1 << USB_ENDPOINT_HALT;
-		} else {
-			if (target_ep->dir != USB_DIR_OUT)
-				goto stall;
-			if ((usep & USB_RHS_MASK) == USB_RHS_STALL)
-				usb_status = 1 << USB_ENDPOINT_HALT;
-		}
-	}
-
-	req = container_of(qe_alloc_request(&ep->ep, GFP_KERNEL),
-					struct qe_req, req);
-	req->req.length = 2;
-	req->req.buf = udc->statusbuf;
-	*(u16 *)req->req.buf = cpu_to_le16(usb_status);
-	req->req.status = -EINPROGRESS;
-	req->req.actual = 0;
-	req->req.complete = ownercomplete;
-
-	udc->ep0_dir = USB_DIR_IN;
-
-	/* data phase */
-	status = __qe_ep_queue(&ep->ep, &req->req);
-
-	if (status == 0)
-		return;
-stall:
-	dev_err(udc->dev, "Can't respond to getstatus request \n");
-	qe_ep0_stall(udc);
-}
-
-/* only handle the setup request, suppose the device in normal status */
-static void setup_received_handle(struct qe_udc *udc,
-				struct usb_ctrlrequest *setup)
-{
-	/* Fix Endian (udc->local_setup_buff is cpu Endian now)*/
-	u16 wValue = le16_to_cpu(setup->wValue);
-	u16 wIndex = le16_to_cpu(setup->wIndex);
-	u16 wLength = le16_to_cpu(setup->wLength);
-
-	/* clear the previous request in the ep0 */
-	udc_reset_ep_queue(udc, 0);
-
-	if (setup->bRequestType & USB_DIR_IN)
-		udc->ep0_dir = USB_DIR_IN;
-	else
-		udc->ep0_dir = USB_DIR_OUT;
-
-	switch (setup->bRequest) {
-	case USB_REQ_GET_STATUS:
-		/* Data+Status phase form udc */
-		if ((setup->bRequestType & (USB_DIR_IN | USB_TYPE_MASK))
-					!= (USB_DIR_IN | USB_TYPE_STANDARD))
-			break;
-		ch9getstatus(udc, setup->bRequestType, wValue, wIndex,
-					wLength);
-		return;
-
-	case USB_REQ_SET_ADDRESS:
-		/* Status phase from udc */
-		if (setup->bRequestType != (USB_DIR_OUT | USB_TYPE_STANDARD |
-						USB_RECIP_DEVICE))
-			break;
-		ch9setaddress(udc, wValue, wIndex, wLength);
-		return;
-
-	case USB_REQ_CLEAR_FEATURE:
-	case USB_REQ_SET_FEATURE:
-		/* Requests with no data phase, status phase from udc */
-		if ((setup->bRequestType & USB_TYPE_MASK)
-					!= USB_TYPE_STANDARD)
-			break;
-
-		if ((setup->bRequestType & USB_RECIP_MASK)
-				== USB_RECIP_ENDPOINT) {
-			int pipe = wIndex & USB_ENDPOINT_NUMBER_MASK;
-			struct qe_ep *ep;
-
-			if (wValue != 0 || wLength != 0
-				|| pipe > USB_MAX_ENDPOINTS)
-				break;
-			ep = &udc->eps[pipe];
-
-			spin_unlock(&udc->lock);
-			qe_ep_set_halt(&ep->ep,
-					(setup->bRequest == USB_REQ_SET_FEATURE)
-						? 1 : 0);
-			spin_lock(&udc->lock);
-		}
-
-		ep0_prime_status(udc, USB_DIR_IN);
-
-		return;
-
-	default:
-		break;
-	}
-
-	if (wLength) {
-		/* Data phase from gadget, status phase from udc */
-		if (setup->bRequestType & USB_DIR_IN) {
-			udc->ep0_state = DATA_STATE_XMIT;
-			udc->ep0_dir = USB_DIR_IN;
-		} else {
-			udc->ep0_state = DATA_STATE_RECV;
-			udc->ep0_dir = USB_DIR_OUT;
-		}
-		spin_unlock(&udc->lock);
-		if (udc->driver->setup(&udc->gadget,
-					&udc->local_setup_buff) < 0)
-			qe_ep0_stall(udc);
-		spin_lock(&udc->lock);
-	} else {
-		/* No data phase, IN status from gadget */
-		udc->ep0_dir = USB_DIR_IN;
-		spin_unlock(&udc->lock);
-		if (udc->driver->setup(&udc->gadget,
-					&udc->local_setup_buff) < 0)
-			qe_ep0_stall(udc);
-		spin_lock(&udc->lock);
-		udc->ep0_state = DATA_STATE_NEED_ZLP;
-	}
-}
-
-/*-------------------------------------------------------------------------
-	USB Interrupt handlers
- -------------------------------------------------------------------------*/
-static void suspend_irq(struct qe_udc *udc)
-{
-	udc->resume_state = udc->usb_state;
-	udc->usb_state = USB_STATE_SUSPENDED;
-
-	/* report suspend to the driver ,serial.c not support this*/
-	if (udc->driver->suspend)
-		udc->driver->suspend(&udc->gadget);
-}
-
-static void resume_irq(struct qe_udc *udc)
-{
-	udc->usb_state = udc->resume_state;
-	udc->resume_state = 0;
-
-	/* report resume to the driver , serial.c not support this*/
-	if (udc->driver->resume)
-		udc->driver->resume(&udc->gadget);
-}
-
-static void idle_irq(struct qe_udc *udc)
-{
-	u8 usbs;
-
-	usbs = in_8(&udc->usb_regs->usb_usbs);
-	if (usbs & USB_IDLE_STATUS_MASK) {
-		if ((udc->usb_state) != USB_STATE_SUSPENDED)
-			suspend_irq(udc);
-	} else {
-		if (udc->usb_state == USB_STATE_SUSPENDED)
-			resume_irq(udc);
-	}
-}
-
-static int reset_irq(struct qe_udc *udc)
-{
-	unsigned char i;
-
-	if (udc->usb_state == USB_STATE_DEFAULT)
-		return 0;
-
-	qe_usb_disable(udc);
-	out_8(&udc->usb_regs->usb_usadr, 0);
-
-	for (i = 0; i < USB_MAX_ENDPOINTS; i++) {
-		if (udc->eps[i].init)
-			qe_ep_reset(udc, i);
-	}
-
-	reset_queues(udc);
-	udc->usb_state = USB_STATE_DEFAULT;
-	udc->ep0_state = WAIT_FOR_SETUP;
-	udc->ep0_dir = USB_DIR_OUT;
-	qe_usb_enable(udc);
-	return 0;
-}
-
-static int bsy_irq(struct qe_udc *udc)
-{
-	return 0;
-}
-
-static int txe_irq(struct qe_udc *udc)
-{
-	return 0;
-}
-
-/* ep0 tx interrupt also in here */
-static int tx_irq(struct qe_udc *udc)
-{
-	struct qe_ep *ep;
-	struct qe_bd __iomem *bd;
-	int i, res = 0;
-
-	if ((udc->usb_state == USB_STATE_ADDRESS)
-		&& (in_8(&udc->usb_regs->usb_usadr) == 0))
-		out_8(&udc->usb_regs->usb_usadr, udc->device_address);
-
-	for (i = (USB_MAX_ENDPOINTS-1); ((i >= 0) && (res == 0)); i--) {
-		ep = &udc->eps[i];
-		if (ep && ep->init && (ep->dir != USB_DIR_OUT)) {
-			bd = ep->c_txbd;
-			if (!(in_be32((u32 __iomem *)bd) & T_R)
-						&& (in_be32(&bd->buf))) {
-				/* confirm the transmitted bd */
-				if (ep->epnum == 0)
-					res = qe_ep0_txconf(ep);
-				else
-					res = qe_ep_txconf(ep);
-			}
-		}
-	}
-	return res;
-}
-
-
-/* setup packect's rx is handle in the function too */
-static void rx_irq(struct qe_udc *udc)
-{
-	struct qe_ep *ep;
-	struct qe_bd __iomem *bd;
-	int i;
-
-	for (i = 0; i < USB_MAX_ENDPOINTS; i++) {
-		ep = &udc->eps[i];
-		if (ep && ep->init && (ep->dir != USB_DIR_IN)) {
-			bd = ep->n_rxbd;
-			if (!(in_be32((u32 __iomem *)bd) & R_E)
-						&& (in_be32(&bd->buf))) {
-				if (ep->epnum == 0) {
-					qe_ep0_rx(udc);
-				} else {
-					/*non-setup package receive*/
-					qe_ep_rx(ep);
-				}
-			}
-		}
-	}
-}
-
-static irqreturn_t qe_udc_irq(int irq, void *_udc)
-{
-	struct qe_udc *udc = (struct qe_udc *)_udc;
-	u16 irq_src;
-	irqreturn_t status = IRQ_NONE;
-	unsigned long flags;
-
-	spin_lock_irqsave(&udc->lock, flags);
-
-	irq_src = in_be16(&udc->usb_regs->usb_usber) &
-		in_be16(&udc->usb_regs->usb_usbmr);
-	/* Clear notification bits */
-	out_be16(&udc->usb_regs->usb_usber, irq_src);
-	/* USB Interrupt */
-	if (irq_src & USB_E_IDLE_MASK) {
-		idle_irq(udc);
-		irq_src &= ~USB_E_IDLE_MASK;
-		status = IRQ_HANDLED;
-	}
-
-	if (irq_src & USB_E_TXB_MASK) {
-		tx_irq(udc);
-		irq_src &= ~USB_E_TXB_MASK;
-		status = IRQ_HANDLED;
-	}
-
-	if (irq_src & USB_E_RXB_MASK) {
-		rx_irq(udc);
-		irq_src &= ~USB_E_RXB_MASK;
-		status = IRQ_HANDLED;
-	}
-
-	if (irq_src & USB_E_RESET_MASK) {
-		reset_irq(udc);
-		irq_src &= ~USB_E_RESET_MASK;
-		status = IRQ_HANDLED;
-	}
-
-	if (irq_src & USB_E_BSY_MASK) {
-		bsy_irq(udc);
-		irq_src &= ~USB_E_BSY_MASK;
-		status = IRQ_HANDLED;
-	}
-
-	if (irq_src & USB_E_TXE_MASK) {
-		txe_irq(udc);
-		irq_src &= ~USB_E_TXE_MASK;
-		status = IRQ_HANDLED;
-	}
-
-	spin_unlock_irqrestore(&udc->lock, flags);
-
-	return status;
-}
-
-/*-------------------------------------------------------------------------
-	Gadget driver probe and unregister.
- --------------------------------------------------------------------------*/
-static int fsl_qe_start(struct usb_gadget *gadget,
-		struct usb_gadget_driver *driver)
-{
-	struct qe_udc *udc;
-	unsigned long flags;
-
-	udc = container_of(gadget, struct qe_udc, gadget);
-	/* lock is needed but whether should use this lock or another */
-	spin_lock_irqsave(&udc->lock, flags);
-
-	driver->driver.bus = NULL;
-	/* hook up the driver */
-	udc->driver = driver;
-	udc->gadget.speed = driver->max_speed;
-
-	/* Enable IRQ reg and Set usbcmd reg EN bit */
-	qe_usb_enable(udc);
-
-	out_be16(&udc->usb_regs->usb_usber, 0xffff);
-	out_be16(&udc->usb_regs->usb_usbmr, USB_E_DEFAULT_DEVICE);
-	udc->usb_state = USB_STATE_ATTACHED;
-	udc->ep0_state = WAIT_FOR_SETUP;
-	udc->ep0_dir = USB_DIR_OUT;
-	spin_unlock_irqrestore(&udc->lock, flags);
-
-	dev_info(udc->dev, "%s bind to driver %s\n", udc->gadget.name,
-			driver->driver.name);
-	return 0;
-}
-
-static int fsl_qe_stop(struct usb_gadget *gadget,
-		struct usb_gadget_driver *driver)
-{
-	struct qe_udc *udc;
-	struct qe_ep *loop_ep;
-	unsigned long flags;
-
-	udc = container_of(gadget, struct qe_udc, gadget);
-	/* stop usb controller, disable intr */
-	qe_usb_disable(udc);
-
-	/* in fact, no needed */
-	udc->usb_state = USB_STATE_ATTACHED;
-	udc->ep0_state = WAIT_FOR_SETUP;
-	udc->ep0_dir = 0;
-
-	/* stand operation */
-	spin_lock_irqsave(&udc->lock, flags);
-	udc->gadget.speed = USB_SPEED_UNKNOWN;
-	nuke(&udc->eps[0], -ESHUTDOWN);
-	list_for_each_entry(loop_ep, &udc->gadget.ep_list, ep.ep_list)
-		nuke(loop_ep, -ESHUTDOWN);
-	spin_unlock_irqrestore(&udc->lock, flags);
-
-	udc->driver = NULL;
-
-	dev_info(udc->dev, "unregistered gadget driver '%s'\r\n",
-			driver->driver.name);
-	return 0;
-}
-
-/* udc structure's alloc and setup, include ep-param alloc */
-static struct qe_udc *qe_udc_config(struct platform_device *ofdev)
-{
-	struct qe_udc *udc;
-	struct device_node *np = ofdev->dev.of_node;
-	unsigned int tmp_addr = 0;
-	struct usb_device_para __iomem *usbpram;
-	unsigned int i;
-	u64 size;
-	u32 offset;
-
-	udc = kzalloc(sizeof(*udc), GFP_KERNEL);
-	if (udc == NULL) {
-		dev_err(&ofdev->dev, "malloc udc failed\n");
-		goto cleanup;
-	}
-
-	udc->dev = &ofdev->dev;
-
-	/* get default address of usb parameter in MURAM from device tree */
-	offset = *of_get_address(np, 1, &size, NULL);
-	udc->usb_param = cpm_muram_addr(offset);
-	memset_io(udc->usb_param, 0, size);
-
-	usbpram = udc->usb_param;
-	out_be16(&usbpram->frame_n, 0);
-	out_be32(&usbpram->rstate, 0);
-
-	tmp_addr = cpm_muram_alloc((USB_MAX_ENDPOINTS *
-					sizeof(struct usb_ep_para)),
-					   USB_EP_PARA_ALIGNMENT);
-	if (IS_ERR_VALUE(tmp_addr))
-		goto cleanup;
-
-	for (i = 0; i < USB_MAX_ENDPOINTS; i++) {
-		out_be16(&usbpram->epptr[i], (u16)tmp_addr);
-		udc->ep_param[i] = cpm_muram_addr(tmp_addr);
-		tmp_addr += 32;
-	}
-
-	memset_io(udc->ep_param[0], 0,
-			USB_MAX_ENDPOINTS * sizeof(struct usb_ep_para));
-
-	udc->resume_state = USB_STATE_NOTATTACHED;
-	udc->usb_state = USB_STATE_POWERED;
-	udc->ep0_dir = 0;
-
-	spin_lock_init(&udc->lock);
-	return udc;
-
-cleanup:
-	kfree(udc);
-	return NULL;
-}
-
-/* USB Controller register init */
-static int qe_udc_reg_init(struct qe_udc *udc)
-{
-	struct usb_ctlr __iomem *qe_usbregs;
-	qe_usbregs = udc->usb_regs;
-
-	/* Spec says that we must enable the USB controller to change mode. */
-	out_8(&qe_usbregs->usb_usmod, 0x01);
-	/* Mode changed, now disable it, since muram isn't initialized yet. */
-	out_8(&qe_usbregs->usb_usmod, 0x00);
-
-	/* Initialize the rest. */
-	out_be16(&qe_usbregs->usb_usbmr, 0);
-	out_8(&qe_usbregs->usb_uscom, 0);
-	out_be16(&qe_usbregs->usb_usber, USBER_ALL_CLEAR);
-
-	return 0;
-}
-
-static int qe_ep_config(struct qe_udc *udc, unsigned char pipe_num)
-{
-	struct qe_ep *ep = &udc->eps[pipe_num];
-
-	ep->udc = udc;
-	strcpy(ep->name, ep_name[pipe_num]);
-	ep->ep.name = ep_name[pipe_num];
-
-	ep->ep.ops = &qe_ep_ops;
-	ep->stopped = 1;
-	usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0);
-	ep->ep.desc = NULL;
-	ep->dir = 0xff;
-	ep->epnum = (u8)pipe_num;
-	ep->sent = 0;
-	ep->last = 0;
-	ep->init = 0;
-	ep->rxframe = NULL;
-	ep->txframe = NULL;
-	ep->tx_req = NULL;
-	ep->state = EP_STATE_IDLE;
-	ep->has_data = 0;
-
-	/* the queue lists any req for this ep */
-	INIT_LIST_HEAD(&ep->queue);
-
-	/* gagdet.ep_list used for ep_autoconfig so no ep0*/
-	if (pipe_num != 0)
-		list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
-
-	ep->gadget = &udc->gadget;
-
-	return 0;
-}
-
-/*-----------------------------------------------------------------------
- *	UDC device Driver operation functions				*
- *----------------------------------------------------------------------*/
-static void qe_udc_release(struct device *dev)
-{
-	struct qe_udc *udc = container_of(dev, struct qe_udc, gadget.dev);
-	int i;
-
-	complete(udc->done);
-	cpm_muram_free(cpm_muram_offset(udc->ep_param[0]));
-	for (i = 0; i < USB_MAX_ENDPOINTS; i++)
-		udc->ep_param[i] = NULL;
-
-	kfree(udc);
-}
-
-/* Driver probe functions */
-static const struct of_device_id qe_udc_match[];
-static int qe_udc_probe(struct platform_device *ofdev)
-{
-	struct qe_udc *udc;
-	const struct of_device_id *match;
-	struct device_node *np = ofdev->dev.of_node;
-	struct qe_ep *ep;
-	unsigned int ret = 0;
-	unsigned int i;
-	const void *prop;
-
-	match = of_match_device(qe_udc_match, &ofdev->dev);
-	if (!match)
-		return -EINVAL;
-
-	prop = of_get_property(np, "mode", NULL);
-	if (!prop || strcmp(prop, "peripheral"))
-		return -ENODEV;
-
-	/* Initialize the udc structure including QH member and other member */
-	udc = qe_udc_config(ofdev);
-	if (!udc) {
-		dev_err(&ofdev->dev, "failed to initialize\n");
-		return -ENOMEM;
-	}
-
-	udc->soc_type = (unsigned long)match->data;
-	udc->usb_regs = of_iomap(np, 0);
-	if (!udc->usb_regs) {
-		ret = -ENOMEM;
-		goto err1;
-	}
-
-	/* initialize usb hw reg except for regs for EP,
-	 * leave usbintr reg untouched*/
-	qe_udc_reg_init(udc);
-
-	/* here comes the stand operations for probe
-	 * set the qe_udc->gadget.xxx */
-	udc->gadget.ops = &qe_gadget_ops;
-
-	/* gadget.ep0 is a pointer */
-	udc->gadget.ep0 = &udc->eps[0].ep;
-
-	INIT_LIST_HEAD(&udc->gadget.ep_list);
-
-	/* modify in register gadget process */
-	udc->gadget.speed = USB_SPEED_UNKNOWN;
-
-	/* name: Identifies the controller hardware type. */
-	udc->gadget.name = driver_name;
-	udc->gadget.dev.parent = &ofdev->dev;
-
-	/* initialize qe_ep struct */
-	for (i = 0; i < USB_MAX_ENDPOINTS ; i++) {
-		/* because the ep type isn't decide here so
-		 * qe_ep_init() should be called in ep_enable() */
-
-		/* setup the qe_ep struct and link ep.ep.list
-		 * into gadget.ep_list */
-		qe_ep_config(udc, (unsigned char)i);
-	}
-
-	/* ep0 initialization in here */
-	ret = qe_ep_init(udc, 0, &qe_ep0_desc);
-	if (ret)
-		goto err2;
-
-	/* create a buf for ZLP send, need to remain zeroed */
-	udc->nullbuf = devm_kzalloc(&ofdev->dev, 256, GFP_KERNEL);
-	if (udc->nullbuf == NULL) {
-		dev_err(udc->dev, "cannot alloc nullbuf\n");
-		ret = -ENOMEM;
-		goto err3;
-	}
-
-	/* buffer for data of get_status request */
-	udc->statusbuf = devm_kzalloc(&ofdev->dev, 2, GFP_KERNEL);
-	if (udc->statusbuf == NULL) {
-		ret = -ENOMEM;
-		goto err3;
-	}
-
-	udc->nullp = virt_to_phys((void *)udc->nullbuf);
-	if (udc->nullp == DMA_ADDR_INVALID) {
-		udc->nullp = dma_map_single(
-					udc->gadget.dev.parent,
-					udc->nullbuf,
-					256,
-					DMA_TO_DEVICE);
-		udc->nullmap = 1;
-	} else {
-		dma_sync_single_for_device(udc->gadget.dev.parent,
-					udc->nullp, 256,
-					DMA_TO_DEVICE);
-	}
-
-	tasklet_init(&udc->rx_tasklet, ep_rx_tasklet,
-			(unsigned long)udc);
-	/* request irq and disable DR  */
-	udc->usb_irq = irq_of_parse_and_map(np, 0);
-	if (!udc->usb_irq) {
-		ret = -EINVAL;
-		goto err_noirq;
-	}
-
-	ret = request_irq(udc->usb_irq, qe_udc_irq, 0,
-				driver_name, udc);
-	if (ret) {
-		dev_err(udc->dev, "cannot request irq %d err %d\n",
-				udc->usb_irq, ret);
-		goto err4;
-	}
-
-	ret = usb_add_gadget_udc_release(&ofdev->dev, &udc->gadget,
-			qe_udc_release);
-	if (ret)
-		goto err5;
-
-	platform_set_drvdata(ofdev, udc);
-	dev_info(udc->dev,
-			"%s USB controller initialized as device\n",
-			(udc->soc_type == PORT_QE) ? "QE" : "CPM");
-	return 0;
-
-err5:
-	free_irq(udc->usb_irq, udc);
-err4:
-	irq_dispose_mapping(udc->usb_irq);
-err_noirq:
-	if (udc->nullmap) {
-		dma_unmap_single(udc->gadget.dev.parent,
-			udc->nullp, 256,
-				DMA_TO_DEVICE);
-			udc->nullp = DMA_ADDR_INVALID;
-	} else {
-		dma_sync_single_for_cpu(udc->gadget.dev.parent,
-			udc->nullp, 256,
-				DMA_TO_DEVICE);
-	}
-err3:
-	ep = &udc->eps[0];
-	cpm_muram_free(cpm_muram_offset(ep->rxbase));
-	kfree(ep->rxframe);
-	kfree(ep->rxbuffer);
-	kfree(ep->txframe);
-err2:
-	iounmap(udc->usb_regs);
-err1:
-	kfree(udc);
-	return ret;
-}
-
-#ifdef CONFIG_PM
-static int qe_udc_suspend(struct platform_device *dev, pm_message_t state)
-{
-	return -ENOTSUPP;
-}
-
-static int qe_udc_resume(struct platform_device *dev)
-{
-	return -ENOTSUPP;
-}
-#endif
-
-static int qe_udc_remove(struct platform_device *ofdev)
-{
-	struct qe_udc *udc = platform_get_drvdata(ofdev);
-	struct qe_ep *ep;
-	unsigned int size;
-	DECLARE_COMPLETION(done);
-
-	usb_del_gadget_udc(&udc->gadget);
-
-	udc->done = &done;
-	tasklet_disable(&udc->rx_tasklet);
-
-	if (udc->nullmap) {
-		dma_unmap_single(udc->gadget.dev.parent,
-			udc->nullp, 256,
-				DMA_TO_DEVICE);
-			udc->nullp = DMA_ADDR_INVALID;
-	} else {
-		dma_sync_single_for_cpu(udc->gadget.dev.parent,
-			udc->nullp, 256,
-				DMA_TO_DEVICE);
-	}
-
-	ep = &udc->eps[0];
-	cpm_muram_free(cpm_muram_offset(ep->rxbase));
-	size = (ep->ep.maxpacket + USB_CRC_SIZE + 2) * (USB_BDRING_LEN + 1);
-
-	kfree(ep->rxframe);
-	if (ep->rxbufmap) {
-		dma_unmap_single(udc->gadget.dev.parent,
-				ep->rxbuf_d, size,
-				DMA_FROM_DEVICE);
-		ep->rxbuf_d = DMA_ADDR_INVALID;
-	} else {
-		dma_sync_single_for_cpu(udc->gadget.dev.parent,
-				ep->rxbuf_d, size,
-				DMA_FROM_DEVICE);
-	}
-
-	kfree(ep->rxbuffer);
-	kfree(ep->txframe);
-
-	free_irq(udc->usb_irq, udc);
-	irq_dispose_mapping(udc->usb_irq);
-
-	tasklet_kill(&udc->rx_tasklet);
-
-	iounmap(udc->usb_regs);
-
-	/* wait for release() of gadget.dev to free udc */
-	wait_for_completion(&done);
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static const struct of_device_id qe_udc_match[] = {
-	{
-		.compatible = "fsl,mpc8323-qe-usb",
-		.data = (void *)PORT_QE,
-	},
-	{
-		.compatible = "fsl,mpc8360-qe-usb",
-		.data = (void *)PORT_QE,
-	},
-	{
-		.compatible = "fsl,mpc8272-cpm-usb",
-		.data = (void *)PORT_CPM,
-	},
-	{},
-};
-
-MODULE_DEVICE_TABLE(of, qe_udc_match);
-
-static struct platform_driver udc_driver = {
-	.driver = {
-		.name = driver_name,
-		.owner = THIS_MODULE,
-		.of_match_table = qe_udc_match,
-	},
-	.probe          = qe_udc_probe,
-	.remove         = qe_udc_remove,
-#ifdef CONFIG_PM
-	.suspend        = qe_udc_suspend,
-	.resume         = qe_udc_resume,
-#endif
-};
-
-module_platform_driver(udc_driver);
-
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_AUTHOR(DRIVER_AUTHOR);
-MODULE_LICENSE("GPL");
-