/**
* This function is called when an EP is disabled due to disconnect or
* change in configuration. Any pending requests will terminate with a
* status of -ESHUTDOWN.
*
* This function modifies the dwc_otg_ep_t data structure for this EP,
* and then calls dwc_otg_ep_deactivate.
*/
static int dwc_otg_pcd_ep_disable(struct usb_ep *_ep)
{
dwc_otg_pcd_ep_t *ep;
unsigned long flags;
DWC_DEBUGPL(DBG_PCDV,"%s(%p)\n", __func__, _ep);
ep = container_of(_ep, dwc_otg_pcd_ep_t, ep);
if (!_ep || !ep->desc)
{
DWC_DEBUGPL(DBG_PCD, "%s, %s not enabled\n", __func__,
_ep ? ep->ep.name : NULL);
return -EINVAL;
}
SPIN_LOCK_IRQSAVE(&ep->pcd->lock, flags);
request_nuke( ep );
dwc_otg_ep_deactivate( GET_CORE_IF(ep->pcd), &ep->dwc_ep );
ep->desc = 0;
ep->stopped = 1;
if(ep->dwc_ep.is_in)
{
release_perio_tx_fifo(GET_CORE_IF(ep->pcd), ep->dwc_ep.tx_fifo_num);
release_tx_fifo(GET_CORE_IF(ep->pcd), ep->dwc_ep.tx_fifo_num);
}
SPIN_UNLOCK_IRQRESTORE(&ep->pcd->lock, flags);
DWC_DEBUGPL(DBG_PCD, "%s disabled\n", _ep->name);
return 0;
}
int dwc_peripheral_start(void *data, bool enable)
{
struct gadget_wrapper *d;
d = gadget_wrapper;
pr_info("usb: %s d->vbus=%d, enable=%d\n", __func__, d->vbus, enable);
mutex_lock(&udc_lock);
d->vbus = enable;
if ( !d->softconnect )
{
printk("usb: %s , d->softconnect is %d / udc don't start now \r\n",__func__, d->softconnect );
mutex_unlock(&udc_lock);
return 0;
}
if(enable) {
wake_lock(&usb_wake_lock);
udc_enable();
dwc_otg_core_init(GET_CORE_IF(d->pcd));
dwc_otg_enable_global_interrupts(GET_CORE_IF(d->pcd));
dwc_otg_core_dev_init(GET_CORE_IF(d->pcd));
d->udc_startup = 1;
} else {
dwc_otg_disable_global_interrupts(GET_CORE_IF(d->pcd));
dwc_otg_clear_all_int(GET_CORE_IF(d->pcd));
dwc_otg_pcd_stop(d->pcd);
udc_disable();
d->udc_startup = 0;
wake_unlock(&usb_wake_lock);
}
mutex_unlock(&udc_lock);
return 0;
}
static void monitor_setup_transfer(unsigned long para)
{
dwc_otg_pcd_t *pcd;
int in_ep_ctrl=0;
int in_ep_tsiz=0;
dwc_otg_core_if_t *core_if;
dwc_otg_dev_if_t *dev_if;
pcd = (dwc_otg_pcd_t *)para;
if(pcd==NULL)
return;
core_if = GET_CORE_IF(pcd);
dev_if = core_if->dev_if;
if(pcd->ep0state == EP0_DISCONNECT)
return;
in_ep_ctrl = dwc_read_reg32(&dev_if->in_ep_regs[0]->diepctl);
in_ep_tsiz = dwc_read_reg32(&dev_if->in_ep_regs[0]->dieptsiz);
if((in_ep_ctrl & 0x80000000) && (in_ep_tsiz & 0x80000))
suspend_count++;
else
suspend_count=0;
if(suspend_count > 5){
void dwc_udc_startup(void);
void dwc_udc_shutdown(void);
pr_info("Reset USB Controller...");
dwc_udc_shutdown();
mdelay(500);
dwc_udc_startup();
}
}
static void __udc_startup(void)
{
struct gadget_wrapper *d;
d = gadget_wrapper;
pr_info("USB:startup udc\n");
if (!d->udc_startup) {
wake_lock(&usb_wake_lock);
udc_enable();
dwc_otg_core_init(GET_CORE_IF(d->pcd));
dwc_otg_enable_global_interrupts(GET_CORE_IF(d->pcd));
dwc_otg_core_dev_init(GET_CORE_IF(d->pcd));
d->udc_startup = 1;
}
}
/**
* This function allocates an I/O buffer to be used for a transfer
* to/from the specified endpoint.
*
* @param _ep The endpoint to be used with with the request
* @param _bytes The desired number of bytes for the buffer
* @param _dma Pointer to the buffer's DMA address; must be valid
* @param _gfp_flags the GFP_* flags to use.
* @return address of a new buffer or null is buffer could not be allocated.
*/
static void *dwc_otg_pcd_alloc_buffer(struct usb_ep *_ep, unsigned _bytes,
dma_addr_t *_dma, unsigned _gfp_flags)
{
void *buf;
dwc_otg_pcd_ep_t *ep;
dwc_otg_pcd_t *pcd = 0;
ep = container_of(_ep, dwc_otg_pcd_ep_t, ep);
pcd = ep->pcd;
DWC_DEBUGPL(DBG_PCDV,"%s(%p,%d,%p,%0x)\n", __func__, _ep, _bytes,
_dma, _gfp_flags);
/* Check dword alignment */
if ((_bytes & 0x3UL) != 0) {
DWC_WARN("%s() Buffer size is not a multiple of"
"DWORD size (%d)",__func__, _bytes);
}
if (GET_CORE_IF(pcd)->dma_enable) {
buf = dma_alloc_coherent (NULL, _bytes, _dma, _gfp_flags);
}
else {
buf = kmalloc( _bytes, _gfp_flags);
}
/* Check dword alignment */
if (((long)buf & 0x3UL) != 0) {
DWC_WARN("%s() Buffer is not DWORD aligned (%p)",
__func__, buf);
}
return buf;
}
/**
* This function is called when an EP is disabled due to disconnect or
* change in configuration. Any pending requests will terminate with a
* status of -ESHUTDOWN.
*
* This function modifies the dwc_otg_ep_t data structure for this EP,
* and then calls dwc_otg_ep_deactivate.
*/
static int dwc_otg_pcd_ep_disable(struct usb_ep *_ep)
{
dwc_otg_pcd_ep_t *ep;
unsigned long flags;
DWC_DEBUGPL(DBG_PCDV,"%s(%p)\n", __func__, _ep);
ep = container_of(_ep, dwc_otg_pcd_ep_t, ep);
if (!_ep || !ep->desc) {
DWC_DEBUGPL(DBG_PCD, "%s, %s not enabled\n", __func__,
_ep ? ep->ep.name : NULL);
return -EINVAL;
}
spin_lock_irqsave(&ep->pcd->lock, flags);
request_nuke( ep );
dwc_otg_ep_deactivate( GET_CORE_IF(ep->pcd), &ep->dwc_ep );
ep->desc = 0;
ep->stopped = 1;
spin_unlock_irqrestore(&ep->pcd->lock, flags);
DWC_DEBUGPL(DBG_PCD, "%s disabled\n", _ep->name);
return 0;
}
static void __udc_shutdown(void)
{
struct gadget_wrapper *d;
d = gadget_wrapper;
pr_info("USB:shutdown udc\n");
if (d->udc_startup) {
dwc_otg_disable_global_interrupts(GET_CORE_IF(d->pcd));
dwc_otg_clear_all_int(GET_CORE_IF(d->pcd));
dwc_otg_pcd_stop(d->pcd);
udc_disable();
d->udc_startup = 0;
wake_unlock(&usb_wake_lock);
}
}
static void enumeration_enable(void)
{
struct gadget_wrapper *d;
pr_info("enable usb enumeration\n");
d = gadget_wrapper;
dwc_otg_enable_global_interrupts(GET_CORE_IF(d->pcd));
return;
}
/**
* This function frees an I/O buffer that was allocated by alloc_buffer.
*
* @param _ep the endpoint associated with the buffer
* @param _buf address of the buffer
* @param _dma The buffer's DMA address
* @param _bytes The number of bytes of the buffer
*/
static void dwc_otg_pcd_free_buffer(struct usb_ep *_ep, void *_buf,
dma_addr_t _dma, unsigned _bytes)
{
dwc_otg_pcd_ep_t *ep;
dwc_otg_pcd_t *pcd = 0;
ep = container_of(_ep, dwc_otg_pcd_ep_t, ep);
pcd = ep->pcd;
DWC_DEBUGPL(DBG_PCDV, "%s(%p,%p,%0x,%d)\n", __func__, _ep, _buf, _dma,
_bytes);
if (GET_CORE_IF(pcd)->dma_enable) {
dma_free_coherent(NULL, _bytes, _buf, _dma);
} else {
kfree(_buf);
}
}
/**
* This function completes a request. It call's the request call back.
*/
void request_done(dwc_otg_pcd_ep_t * _ep, dwc_otg_pcd_request_t * _req,
int _status)
{
unsigned stopped = _ep->stopped;
dwc_otg_core_if_t *core_if = GET_CORE_IF(_ep->pcd);
DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, _ep);
if(_ep->dwc_ep.num && _ep->dwc_ep.is_in)
list_del_init(&_req->pcd_queue);
list_del_init(&_req->queue);
if (_req->req.status == -EINPROGRESS) {
_req->req.status = _status;
} else {
_status = _req->req.status;
}
/* don't modify queue heads during completion callback */
_ep->stopped = 1;
SPIN_UNLOCK(&_ep->pcd->lock);
_req->req.complete(&_ep->ep, &_req->req);
SPIN_LOCK(&_ep->pcd->lock);
if (_ep->pcd->request_pending > 0) {
--_ep->pcd->request_pending;
}
_ep->stopped = stopped;
if(_ep->dwc_ep.is_in && _ep->dwc_ep.num){
DWC_DEBUGPL(DBG_PCDV, "ep%d,len=%d\n",_ep->dwc_ep.num,_req->req.actual);
_ep->pcd->ep_in_sync = 0;
}
if(core_if->dma_enable)
dwc_otg_pcd_dma_unmap(&_ep->dwc_ep);
}
static void pcd_setup( pcd_struct_t *_pcd )
{
struct usb_ctrlrequest ctrl = _pcd->setup_pkt.req;
dwc_ep_t *ep0 = &g_dwc_eps[0];
deptsiz0_data_t doeptsize0 = { 0};
if(_pcd->request_enable == 0)
return;
// _pcd->setup_pkt.d32[0] = 0;
// _pcd->setup_pkt.d32[1] = 0;
unsigned short status = 0;
_pcd->request_enable = 0;
doeptsize0.d32 = dwc_read_reg32( DWC_REG_OUT_EP_TSIZE(0));
if (ctrl.bRequestType & USB_DIR_IN) {
ep0->is_in = 1;
_pcd->ep0state = EP0_IN_DATA_PHASE;
} else {
ep0->is_in = 0;
_pcd->ep0state = EP0_OUT_DATA_PHASE;
}
if ((ctrl.bRequestType & USB_TYPE_MASK) != USB_TYPE_STANDARD) {
/* handle non-standard (class/vendor) requests in the gadget driver */
//do_gadget_setup(_pcd, &ctrl );
DBG("Vendor requset\n");
do_vendor_request(_pcd, &ctrl );
dwc_otg_ep_req_start(_pcd,0);
return;
}
/** @todo NGS: Handle bad setup packet? */
switch (ctrl.bRequest) {
case USB_REQ_GET_STATUS:
switch (ctrl.bRequestType & USB_RECIP_MASK) {
case USB_RECIP_DEVICE:
status = 0x1; /* Self powered */
status |= 0;//_pcd->remote_wakeup_enable << 1;
break;
}
_pcd->buf = (char *)&status;
_pcd->length = 2;
dwc_otg_ep_req_start(_pcd,0);
break;
#if 0
case USB_RECIP_INTERFACE:
*status = 0;
break;
case USB_RECIP_ENDPOINT:
ep = get_ep_by_addr(_pcd, ctrl.wIndex);
if ( ep == 0 || ctrl.wLength > 2) {
ep0_do_stall(_pcd, -EOPNOTSUPP);
return;
}
/** @todo check for EP stall */
*status = ep->stopped;
break;
}
_pcd->ep0_pending = 1;
ep0->dwc_ep.start_xfer_buff = (uint8_t *)status;
ep0->dwc_ep.xfer_buff = (uint8_t *)status;
ep0->dwc_ep.dma_addr = _pcd->status_buf_dma_handle;
ep0->dwc_ep.xfer_len = 2;
ep0->dwc_ep.xfer_count = 0;
ep0->dwc_ep.total_len = ep0->dwc_ep.xfer_len;
dwc_otg_ep0_start_transfer( GET_CORE_IF(_pcd), &ep0->dwc_ep );
break;
case USB_REQ_CLEAR_FEATURE:
do_clear_feature( _pcd );
break;
case USB_REQ_SET_FEATURE:
do_set_feature( _pcd );
break;
#endif
case USB_REQ_SET_ADDRESS:
if (ctrl.bRequestType == USB_RECIP_DEVICE) {
dcfg_data_t dcfg = { 0 };
//DBG("Set address: %d\n",ctrl.wValue);
dcfg.b.devaddr = ctrl.wValue;
dwc_modify_reg32(DWC_REG_DCFG,0, dcfg.d32);
do_setup_in_status_phase( _pcd );
return;
}
break;
case USB_REQ_SET_INTERFACE:
case USB_REQ_SET_CONFIGURATION:
_pcd->request_config = 1; /* Configuration changed */
// do_gadget_setup(_pcd, &ctrl );
// break;
default:
/* Call the Gadget Driver's setup functions */
do_gadget_setup(_pcd, &ctrl );
dwc_otg_ep_req_start(_pcd,0);
break;
}
/**
* This function is used to submit an I/O Request to an EP.
*
* - When the request completes the request's completion callback
* is called to return the request to the driver.
* - An EP, except control EPs, may have multiple requests
* pending.
* - Once submitted the request cannot be examined or modified.
* - Each request is turned into one or more packets.
* - A BULK EP can queue any amount of data; the transfer is
* packetized.
* - Zero length Packets are specified with the request 'zero'
* flag.
*/
static int dwc_otg_pcd_ep_queue(struct usb_ep *_ep,
struct usb_request *_req, int _gfp_flags)
{
int prevented = 0;
dwc_otg_pcd_request_t *req;
dwc_otg_pcd_ep_t *ep;
dwc_otg_pcd_t *pcd;
unsigned long flags = 0;
DWC_DEBUGPL(DBG_PCDV,"%s(%p,%p,%d)\n",
__func__, _ep, _req, _gfp_flags);
req = container_of(_req, dwc_otg_pcd_request_t, req);
if (!_req || !_req->complete || !_req->buf ||
!list_empty(&req->queue))
{
if( !_req ) printk("bad _req\n");
if( !_req->complete ) printk("bad _req->complete\n");
if( !_req->buf ) printk("bad _req->buf\n");
if( !list_empty(&req->queue) ) printk("bad list_empty\n");
DWC_WARN("%s, bad params\n", __func__);
return -EINVAL;
}
ep = container_of(_ep, dwc_otg_pcd_ep_t, ep);
if (!_ep || (!ep->desc && ep->dwc_ep.num != 0))
{
DWC_WARN("%s, bad ep\n", __func__);
return -EINVAL;
}
pcd = ep->pcd;
//cathy, if suspended, drop request
if ( (GET_CORE_IF(pcd)->dev_if->suspended == 1) && (ep->dwc_ep.num != 0) )
{
DWC_DEBUGPL(DBG_PCDV,"%s, epnum = %d, drop request\n", __func__, ep->dwc_ep.num);
return -ESHUTDOWN;
}
if (!pcd->driver || pcd->gadget.speed == USB_SPEED_UNKNOWN)
{
DWC_DEBUGPL(DBG_PCDV, "gadget.speed=%d\n", pcd->gadget.speed);
DWC_WARN("%s, bogus device state\n", __func__);
return -ESHUTDOWN;
}
DWC_DEBUGPL(DBG_PCD, "%s queue req %p, len %d buf %p\n",
_ep->name, _req, _req->length, _req->buf);
if (!GET_CORE_IF(pcd)->core_params->opt)
{
if (ep->dwc_ep.num != 0)
{
DWC_ERROR("%s queue req %p, len %d buf %p\n",
_ep->name, _req, _req->length, _req->buf);
}
}
SPIN_LOCK_IRQSAVE(&ep->pcd->lock, flags);
#if defined(DEBUG) & defined(VERBOSE)
dump_msg(_req->buf, _req->length);
#endif
_req->status = -EINPROGRESS;
_req->actual = 0;
/*
* For EP0 IN without premature status, zlp is required?
*/
if (ep->dwc_ep.num == 0 && ep->dwc_ep.is_in)
{
DWC_DEBUGPL(DBG_PCDV, "%s-OUT ZLP\n", _ep->name);
//_req->zero = 1;
}
/* Start the transfer */
if (list_empty(&ep->queue) && !ep->stopped)
{
/* EP0 Transfer? */
if (ep->dwc_ep.num == 0)
{
switch (pcd->ep0state)
{
case EP0_IN_DATA_PHASE:
DWC_DEBUGPL(DBG_PCD,
"%s ep0: EP0_IN_DATA_PHASE\n",
__func__);
break;
case EP0_OUT_DATA_PHASE:
DWC_DEBUGPL(DBG_PCD,
"%s ep0: EP0_OUT_DATA_PHASE\n",
__func__);
if (pcd->request_config)
{
/* Complete STATUS PHASE */
ep->dwc_ep.is_in = 1;
pcd->ep0state = EP0_STATUS;
}
break;
default:
DWC_DEBUGPL(DBG_ANY, "ep0: odd state %d\n",
pcd->ep0state);
SPIN_UNLOCK_IRQRESTORE(&pcd->lock, flags);
return -EL2HLT;
}
ep->dwc_ep.dma_addr = (u32)_req->buf & ~Uncache_Mask; //_req->dma; //cathy
ep->dwc_ep.start_xfer_buff = _req->buf;
ep->dwc_ep.xfer_buff = _req->buf;
ep->dwc_ep.xfer_len = _req->length;
ep->dwc_ep.xfer_count = 0;
ep->dwc_ep.sent_zlp = 0;
ep->dwc_ep.total_len = ep->dwc_ep.xfer_len;
dwc_otg_ep0_start_transfer( GET_CORE_IF(pcd),
&ep->dwc_ep );
}
else
{
/* Setup and start the Transfer */
ep->dwc_ep.dma_addr = (u32)_req->buf & ~Uncache_Mask; //_req->dma; //cathy
//ep->dwc_ep.dma_addr = _req->dma;
ep->dwc_ep.start_xfer_buff = _req->buf;
ep->dwc_ep.xfer_buff = _req->buf;
ep->dwc_ep.xfer_len = _req->length;
ep->dwc_ep.xfer_count = 0;
ep->dwc_ep.sent_zlp = 0;
ep->dwc_ep.total_len = ep->dwc_ep.xfer_len;
dwc_otg_ep_start_transfer( GET_CORE_IF(pcd),
&ep->dwc_ep );
}
}
if ((req != 0) || prevented)
{
++pcd->request_pending;
list_add_tail(&req->queue, &ep->queue);
//cathy
#if 0
if (ep->dwc_ep.is_in && ep->stopped && !(GET_CORE_IF(pcd)->dma_enable))
{
/** @todo NGS Create a function for this. */
diepmsk_data_t diepmsk = { .d32 = 0};
diepmsk.b.intktxfemp = 1;
dwc_modify_reg32( &GET_CORE_IF(pcd)->dev_if->dev_global_regs->diepmsk, 0, diepmsk.d32 );
}
#endif
}
/**
* This function is called by the Gadget Driver for each EP to be
* configured for the current configuration (SET_CONFIGURATION).
*
* This function initializes the dwc_otg_ep_t data structure, and then
* calls dwc_otg_ep_activate.
*/
static int dwc_otg_pcd_ep_enable(struct usb_ep *_ep,
const struct usb_endpoint_descriptor *_desc)
{
dwc_otg_pcd_ep_t *ep = 0;
dwc_otg_pcd_t *pcd = 0;
unsigned long flags;
DWC_DEBUGPL(DBG_PCDV,"%s(%p,%p)\n", __func__, _ep, _desc );
ep = container_of(_ep, dwc_otg_pcd_ep_t, ep);
if (!_ep || !_desc || ep->desc ||
_desc->bDescriptorType != USB_DT_ENDPOINT)
{
DWC_WARN( "%s, bad ep or descriptor\n", __func__);
return -EINVAL;
}
if (ep == &ep->pcd->ep0)
{
DWC_WARN("%s, bad ep(0)\n", __func__);
return -EINVAL;
}
/* Check FIFO size? */
if (!_desc->wMaxPacketSize)
{
DWC_WARN("%s, bad %s maxpacket\n", __func__, _ep->name);
return -ERANGE;
}
pcd = ep->pcd;
if (!pcd->driver || pcd->gadget.speed == USB_SPEED_UNKNOWN)
{
if (!pcd->driver) {
bh_otg_dbg2("[%s:%d] gadget[%s] !pcd->driver\n", __FUNCTION__, __LINE__, pcd->gadget.name);
}
if (pcd->gadget.speed == USB_SPEED_UNKNOWN) {
bh_otg_dbg2("[%s:%d] gadget[%s] USB_SPEED_UNKNOWN\n", __FUNCTION__, __LINE__, pcd->gadget.name);
}
DWC_WARN("%s, bogus device state\n", __func__);
return -ESHUTDOWN;
}
SPIN_LOCK_IRQSAVE(&pcd->lock, flags);
ep->desc = _desc;
ep->ep.maxpacket = le16_to_cpu (_desc->wMaxPacketSize);
/*
* Activate the EP
*/
ep->stopped = 0;
ep->dwc_ep.is_in = (USB_DIR_IN & _desc->bEndpointAddress) != 0;
ep->dwc_ep.maxpacket = ep->ep.maxpacket;
ep->dwc_ep.type = _desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
if(ep->dwc_ep.is_in)
{
if(!pcd->otg_dev->core_if->en_multiple_tx_fifo)
{
ep->dwc_ep.tx_fifo_num = 0;
if ((_desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
//cathy USB_ENDPOINT_XFER_ISOC )
USB_ENDPOINT_XFER_INT ) //assign interrupt in ep (ep3) to periodic tx fifo
{
/*
* if ISOC EP then assign a Periodic Tx FIFO.
*/
ep->dwc_ep.tx_fifo_num = assign_perio_tx_fifo(pcd->otg_dev->core_if);
}
}
else
{
/*
* if Dedicated FIFOs mode is on then assign a Tx FIFO.
*/
ep->dwc_ep.tx_fifo_num = assign_tx_fifo(pcd->otg_dev->core_if);
}
}
/* Set initial data PID. */
if ((_desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_BULK )
{
ep->dwc_ep.data_pid_start = 0;
}
DWC_DEBUGPL(DBG_PCD, "Activate %s-%s: type=%d, mps=%d desc=%p\n",
ep->ep.name, (ep->dwc_ep.is_in ?"IN":"OUT"),
ep->dwc_ep.type, ep->dwc_ep.maxpacket, ep->desc );
dwc_otg_ep_activate( GET_CORE_IF(pcd), &ep->dwc_ep );
SPIN_UNLOCK_IRQRESTORE(&pcd->lock, flags);
return 0;
}
void udc_phy_up(void)
{
struct gadget_wrapper *d = gadget_wrapper;
dwc_otg_dev_soft_connect(GET_CORE_IF(d->pcd));
}
/**
* Read the device status register and set the device speed in the
* data structure.
* Set up EP0 to receive SETUP packets by calling dwc_ep0_activate.
*/
int32_t dwc_otg_pcd_handle_enum_done_intr(void)
{
gintsts_data_t gintsts;
gusbcfg_data_t gusbcfg;
/*dsts_data_t dsts;*/
depctl_data_t diepctl;
depctl_data_t doepctl;
dctl_data_t dctl ={0};
DBG("SPEED ENUM\n");
/* Read the Device Status and Endpoint 0 Control registers */
/*dsts.d32 = dwc_read_reg32(DWC_REG_DSTS);*/
diepctl.d32 = dwc_read_reg32(DWC_REG_IN_EP_REG(0) );
doepctl.d32 = dwc_read_reg32(DWC_REG_OUT_EP_REG(0));
/* Set the MPS of the IN EP based on the enumeration speed */
diepctl.b.mps = DWC_DEP0CTL_MPS_64;
dwc_write_reg32(DWC_REG_IN_EP_REG(0) , diepctl.d32);
/* Enable OUT EP for receive */
doepctl.b.epena = 1;
dwc_write_reg32(DWC_REG_OUT_EP_REG(0), doepctl.d32);
dctl.b.cgnpinnak = 1;
dwc_modify_reg32(DWC_REG_DCTL, dctl.d32, dctl.d32);
if (this_pcd[0].ep0state == EP0_DISCONNECT) {
this_pcd[0].ep0state = EP0_IDLE;
} else if (this_pcd[0].ep0state == EP0_STALL) {
this_pcd[0].ep0state = EP0_IDLE;
}
this_pcd[0].ep0state = EP0_IDLE;
/* Set USB turnaround time based on device speed and PHY interface. */
gusbcfg.d32 = dwc_read_reg32(DWC_REG_GUSBCFG);
#if 0
if (_pcd->gadget.speed == USB_SPEED_HIGH) {
if (GET_CORE_IF(_pcd)->hwcfg2.b.hs_phy_type == DWC_HWCFG2_HS_PHY_TYPE_ULPI) {
/* ULPI interface */
gusbcfg.b.usbtrdtim = 9;
}
if (GET_CORE_IF(_pcd)->hwcfg2.b.hs_phy_type == DWC_HWCFG2_HS_PHY_TYPE_UTMI) {
/* UTMI+ interface */
if (GET_CORE_IF(_pcd)->core_params->phy_utmi_width == 16) {
gusbcfg.b.usbtrdtim = 5;
} else {
gusbcfg.b.usbtrdtim = 9;
}
}
if (GET_CORE_IF(_pcd)->hwcfg2.b.hs_phy_type == DWC_HWCFG2_HS_PHY_TYPE_UTMI_ULPI) {
/* UTMI+ OR ULPI interface */
if (gusbcfg.b.ulpi_utmi_sel == 1) {
/* ULPI interface */
gusbcfg.b.usbtrdtim = 9;
} else {
/* UTMI+ interface */
if (GET_CORE_IF(_pcd)->core_params->phy_utmi_width == 16) {
gusbcfg.b.usbtrdtim = 5;
} else {
gusbcfg.b.usbtrdtim = 9;
}
}
}
} else {
/* Full or low speed */
gusbcfg.b.usbtrdtim = 9;
}
#else
/* Full or low speed */
gusbcfg.b.usbtrdtim = 5;
#endif
dwc_write_reg32(DWC_REG_GUSBCFG, gusbcfg.d32);
/* Clear interrupt */
gintsts.d32 = 0;
gintsts.b.enumdone = 1;
dwc_write_reg32(DWC_REG_GINTSTS,gintsts.d32 );
return 1;
}
/**
* This function is called by the Gadget Driver for each EP to be
* configured for the current configuration (SET_CONFIGURATION).
*
* This function initializes the dwc_otg_ep_t data structure, and then
* calls dwc_otg_ep_activate.
*/
static int dwc_otg_pcd_ep_enable(struct usb_ep *_ep,
const struct usb_endpoint_descriptor *_desc)
{
dwc_otg_pcd_ep_t *ep = 0;
dwc_otg_pcd_t *pcd = 0;
unsigned long flags;
DWC_DEBUGPL(DBG_PCDV,"%s(%p,%p)\n", __func__, _ep, _desc );
ep = container_of(_ep, dwc_otg_pcd_ep_t, ep);
if (!_ep || !_desc || ep->desc ||
_desc->bDescriptorType != USB_DT_ENDPOINT) {
DWC_WARN( "%s, bad ep or descriptor\n", __func__);
return -EINVAL;
}
if (ep == &ep->pcd->ep[0]){
DWC_WARN("%s, bad ep(0)\n", __func__);
return -EINVAL;
}
/* Check FIFO size? */
if (!_desc->wMaxPacketSize) {
DWC_WARN("%s, bad %s maxpacket\n", __func__, _ep->name);
return -ERANGE;
}
pcd = ep->pcd;
if (!pcd->driver || pcd->gadget.speed == USB_SPEED_UNKNOWN) {
DWC_WARN("%s, bogus device state\n", __func__);
return -ESHUTDOWN;
}
spin_lock_irqsave(&pcd->lock, flags);
ep->desc = _desc;
ep->ep.maxpacket = le16_to_cpu (_desc->wMaxPacketSize);
/*
* Activate the EP
*/
ep->stopped = 0;
ep->dwc_ep.is_in = (USB_DIR_IN & _desc->bEndpointAddress) != 0;
ep->dwc_ep.maxpacket = ep->ep.maxpacket;
ep->dwc_ep.tx_fifo_num = 0;
ep->dwc_ep.type = _desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
if ((_desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_ISOC ) {
/*
* if ISOC EP then assign a Periodic Tx FIFO.
*/
/** @todo NGS Determine Tx FIFO for periodic EP.
* Currently using 1.
*/
ep->dwc_ep.tx_fifo_num = 1;
}
/* Set initial data PID. */
if ((_desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_BULK ) {
ep->dwc_ep.data_pid_start = 0;
}
DWC_DEBUGPL(DBG_PCD, "Activate %s-%s: type=%d, mps=%d desc=%p\n",
ep->ep.name, (ep->dwc_ep.is_in ?"IN":"OUT"),
ep->dwc_ep.type, ep->dwc_ep.maxpacket, ep->desc );
dwc_otg_ep_activate( GET_CORE_IF(pcd), &ep->dwc_ep );
spin_unlock_irqrestore(&pcd->lock, flags);
return 0;
}
