* UTIL block
*****************************************************************************/
-static int add_td_to_list(struct ci13xxx_ep *mEp, struct ci13xxx_req *mReq,
+static int add_td_to_list(struct ci13xxx_ep *hwep, struct ci13xxx_req *hwreq,
unsigned length)
{
int i;
if (node == NULL)
return -ENOMEM;
- node->ptr = dma_pool_alloc(mEp->td_pool, GFP_ATOMIC,
+ node->ptr = dma_pool_alloc(hwep->td_pool, GFP_ATOMIC,
&node->dma);
if (node->ptr == NULL) {
kfree(node);
node->ptr->token &= cpu_to_le32(TD_TOTAL_BYTES);
node->ptr->token |= cpu_to_le32(TD_STATUS_ACTIVE);
- temp = (u32) (mReq->req.dma + mReq->req.actual);
+ temp = (u32) (hwreq->req.dma + hwreq->req.actual);
if (length) {
node->ptr->page[0] = cpu_to_le32(temp);
for (i = 1; i < TD_PAGE_COUNT; i++) {
}
}
- mReq->req.actual += length;
+ hwreq->req.actual += length;
- if (!list_empty(&mReq->tds)) {
+ if (!list_empty(&hwreq->tds)) {
/* get the last entry */
- lastnode = list_entry(mReq->tds.prev,
+ lastnode = list_entry(hwreq->tds.prev,
struct td_node, td);
lastnode->ptr->next = cpu_to_le32(node->dma);
}
INIT_LIST_HEAD(&node->td);
- list_add_tail(&node->td, &mReq->tds);
+ list_add_tail(&node->td, &hwreq->tds);
return 0;
}
/**
* _hardware_queue: configures a request at hardware level
* @gadget: gadget
- * @mEp: endpoint
+ * @hwep: endpoint
*
* This function returns an error code
*/
-static int _hardware_enqueue(struct ci13xxx_ep *mEp, struct ci13xxx_req *mReq)
+static int _hardware_enqueue(struct ci13xxx_ep *hwep, struct ci13xxx_req *hwreq)
{
- struct ci13xxx *ci = mEp->ci;
+ struct ci13xxx *ci = hwep->ci;
int ret = 0;
- unsigned rest = mReq->req.length;
+ unsigned rest = hwreq->req.length;
int pages = TD_PAGE_COUNT;
struct td_node *firstnode, *lastnode;
/* don't queue twice */
- if (mReq->req.status == -EALREADY)
+ if (hwreq->req.status == -EALREADY)
return -EALREADY;
- mReq->req.status = -EALREADY;
+ hwreq->req.status = -EALREADY;
- ret = usb_gadget_map_request(&ci->gadget, &mReq->req, mEp->dir);
+ ret = usb_gadget_map_request(&ci->gadget, &hwreq->req, hwep->dir);
if (ret)
return ret;
* The first buffer could be not page aligned.
* In that case we have to span into one extra td.
*/
- if (mReq->req.dma % PAGE_SIZE)
+ if (hwreq->req.dma % PAGE_SIZE)
pages--;
if (rest == 0)
- add_td_to_list(mEp, mReq, 0);
+ add_td_to_list(hwep, hwreq, 0);
while (rest > 0) {
- unsigned count = min(mReq->req.length - mReq->req.actual,
+ unsigned count = min(hwreq->req.length - hwreq->req.actual,
(unsigned)(pages * CI13XXX_PAGE_SIZE));
- add_td_to_list(mEp, mReq, count);
+ add_td_to_list(hwep, hwreq, count);
rest -= count;
}
- if (mReq->req.zero && mReq->req.length
- && (mReq->req.length % mEp->ep.maxpacket == 0))
- add_td_to_list(mEp, mReq, 0);
+ if (hwreq->req.zero && hwreq->req.length
+ && (hwreq->req.length % hwep->ep.maxpacket == 0))
+ add_td_to_list(hwep, hwreq, 0);
- firstnode = list_first_entry(&mReq->tds, struct td_node, td);
+ firstnode = list_first_entry(&hwreq->tds, struct td_node, td);
- lastnode = list_entry(mReq->tds.prev,
+ lastnode = list_entry(hwreq->tds.prev,
struct td_node, td);
lastnode->ptr->next = cpu_to_le32(TD_TERMINATE);
- if (!mReq->req.no_interrupt)
+ if (!hwreq->req.no_interrupt)
lastnode->ptr->token |= cpu_to_le32(TD_IOC);
wmb();
- mReq->req.actual = 0;
- if (!list_empty(&mEp->qh.queue)) {
- struct ci13xxx_req *mReqPrev;
- int n = hw_ep_bit(mEp->num, mEp->dir);
+ hwreq->req.actual = 0;
+ if (!list_empty(&hwep->qh.queue)) {
+ struct ci13xxx_req *hwreqprev;
+ int n = hw_ep_bit(hwep->num, hwep->dir);
int tmp_stat;
struct td_node *prevlastnode;
u32 next = firstnode->dma & TD_ADDR_MASK;
- mReqPrev = list_entry(mEp->qh.queue.prev,
+ hwreqprev = list_entry(hwep->qh.queue.prev,
struct ci13xxx_req, queue);
- prevlastnode = list_entry(mReqPrev->tds.prev,
+ prevlastnode = list_entry(hwreqprev->tds.prev,
struct td_node, td);
prevlastnode->ptr->next = cpu_to_le32(next);
}
/* QH configuration */
- mEp->qh.ptr->td.next = cpu_to_le32(firstnode->dma);
- mEp->qh.ptr->td.token &=
+ hwep->qh.ptr->td.next = cpu_to_le32(firstnode->dma);
+ hwep->qh.ptr->td.token &=
cpu_to_le32(~(TD_STATUS_HALTED|TD_STATUS_ACTIVE));
- if (mEp->type == USB_ENDPOINT_XFER_ISOC) {
- u32 mul = mReq->req.length / mEp->ep.maxpacket;
+ if (hwep->type == USB_ENDPOINT_XFER_ISOC) {
+ u32 mul = hwreq->req.length / hwep->ep.maxpacket;
- if (mReq->req.length % mEp->ep.maxpacket)
+ if (hwreq->req.length % hwep->ep.maxpacket)
mul++;
- mEp->qh.ptr->cap |= mul << __ffs(QH_MULT);
+ hwep->qh.ptr->cap |= mul << __ffs(QH_MULT);
}
wmb(); /* synchronize before ep prime */
- ret = hw_ep_prime(ci, mEp->num, mEp->dir,
- mEp->type == USB_ENDPOINT_XFER_CONTROL);
+ ret = hw_ep_prime(ci, hwep->num, hwep->dir,
+ hwep->type == USB_ENDPOINT_XFER_CONTROL);
done:
return ret;
}
/*
* free_pending_td: remove a pending request for the endpoint
- * @mEp: endpoint
+ * @hwep: endpoint
*/
-static void free_pending_td(struct ci13xxx_ep *mEp)
+static void free_pending_td(struct ci13xxx_ep *hwep)
{
- struct td_node *pending = mEp->pending_td;
+ struct td_node *pending = hwep->pending_td;
- dma_pool_free(mEp->td_pool, pending->ptr, pending->dma);
- mEp->pending_td = NULL;
+ dma_pool_free(hwep->td_pool, pending->ptr, pending->dma);
+ hwep->pending_td = NULL;
kfree(pending);
}
/**
* _hardware_dequeue: handles a request at hardware level
* @gadget: gadget
- * @mEp: endpoint
+ * @hwep: endpoint
*
* This function returns an error code
*/
-static int _hardware_dequeue(struct ci13xxx_ep *mEp, struct ci13xxx_req *mReq)
+static int _hardware_dequeue(struct ci13xxx_ep *hwep, struct ci13xxx_req *hwreq)
{
u32 tmptoken;
struct td_node *node, *tmpnode;
unsigned remaining_length;
- unsigned actual = mReq->req.length;
+ unsigned actual = hwreq->req.length;
- if (mReq->req.status != -EALREADY)
+ if (hwreq->req.status != -EALREADY)
return -EINVAL;
- mReq->req.status = 0;
+ hwreq->req.status = 0;
- list_for_each_entry_safe(node, tmpnode, &mReq->tds, td) {
+ list_for_each_entry_safe(node, tmpnode, &hwreq->tds, td) {
tmptoken = le32_to_cpu(node->ptr->token);
if ((TD_STATUS_ACTIVE & tmptoken) != 0) {
- mReq->req.status = -EALREADY;
+ hwreq->req.status = -EALREADY;
return -EBUSY;
}
remaining_length >>= __ffs(TD_TOTAL_BYTES);
actual -= remaining_length;
- mReq->req.status = tmptoken & TD_STATUS;
- if ((TD_STATUS_HALTED & mReq->req.status)) {
- mReq->req.status = -EPIPE;
+ hwreq->req.status = tmptoken & TD_STATUS;
+ if ((TD_STATUS_HALTED & hwreq->req.status)) {
+ hwreq->req.status = -EPIPE;
break;
- } else if ((TD_STATUS_DT_ERR & mReq->req.status)) {
- mReq->req.status = -EPROTO;
+ } else if ((TD_STATUS_DT_ERR & hwreq->req.status)) {
+ hwreq->req.status = -EPROTO;
break;
- } else if ((TD_STATUS_TR_ERR & mReq->req.status)) {
- mReq->req.status = -EILSEQ;
+ } else if ((TD_STATUS_TR_ERR & hwreq->req.status)) {
+ hwreq->req.status = -EILSEQ;
break;
}
if (remaining_length) {
- if (mEp->dir) {
- mReq->req.status = -EPROTO;
+ if (hwep->dir) {
+ hwreq->req.status = -EPROTO;
break;
}
}
* which will run the udc unusable, the cleanup of the
* td has to be delayed by one.
*/
- if (mEp->pending_td)
- free_pending_td(mEp);
+ if (hwep->pending_td)
+ free_pending_td(hwep);
- mEp->pending_td = node;
+ hwep->pending_td = node;
list_del_init(&node->td);
}
- usb_gadget_unmap_request(&mEp->ci->gadget, &mReq->req, mEp->dir);
+ usb_gadget_unmap_request(&hwep->ci->gadget, &hwreq->req, hwep->dir);
- mReq->req.actual += actual;
+ hwreq->req.actual += actual;
- if (mReq->req.status)
- return mReq->req.status;
+ if (hwreq->req.status)
+ return hwreq->req.status;
- return mReq->req.actual;
+ return hwreq->req.actual;
}
/**
* _ep_nuke: dequeues all endpoint requests
- * @mEp: endpoint
+ * @hwep: endpoint
*
* This function returns an error code
* Caller must hold lock
*/
-static int _ep_nuke(struct ci13xxx_ep *mEp)
-__releases(mEp->lock)
-__acquires(mEp->lock)
+static int _ep_nuke(struct ci13xxx_ep *hwep)
+__releases(hwep->lock)
+__acquires(hwep->lock)
{
struct td_node *node, *tmpnode;
- if (mEp == NULL)
+ if (hwep == NULL)
return -EINVAL;
- hw_ep_flush(mEp->ci, mEp->num, mEp->dir);
+ hw_ep_flush(hwep->ci, hwep->num, hwep->dir);
- while (!list_empty(&mEp->qh.queue)) {
+ while (!list_empty(&hwep->qh.queue)) {
/* pop oldest request */
- struct ci13xxx_req *mReq = \
- list_entry(mEp->qh.queue.next,
- struct ci13xxx_req, queue);
+ struct ci13xxx_req *hwreq = list_entry(hwep->qh.queue.next,
+ struct ci13xxx_req,
+ queue);
- list_for_each_entry_safe(node, tmpnode, &mReq->tds, td) {
- dma_pool_free(mEp->td_pool, node->ptr, node->dma);
+ list_for_each_entry_safe(node, tmpnode, &hwreq->tds, td) {
+ dma_pool_free(hwep->td_pool, node->ptr, node->dma);
list_del_init(&node->td);
node->ptr = NULL;
kfree(node);
}
- list_del_init(&mReq->queue);
- mReq->req.status = -ESHUTDOWN;
+ list_del_init(&hwreq->queue);
+ hwreq->req.status = -ESHUTDOWN;
- if (mReq->req.complete != NULL) {
- spin_unlock(mEp->lock);
- mReq->req.complete(&mEp->ep, &mReq->req);
- spin_lock(mEp->lock);
+ if (hwreq->req.complete != NULL) {
+ spin_unlock(hwep->lock);
+ hwreq->req.complete(&hwep->ep, &hwreq->req);
+ spin_lock(hwep->lock);
}
}
- if (mEp->pending_td)
- free_pending_td(mEp);
+ if (hwep->pending_td)
+ free_pending_td(hwep);
return 0;
}
static int _ep_queue(struct usb_ep *ep, struct usb_request *req,
gfp_t __maybe_unused gfp_flags)
{
- struct ci13xxx_ep *mEp = container_of(ep, struct ci13xxx_ep, ep);
- struct ci13xxx_req *mReq = container_of(req, struct ci13xxx_req, req);
- struct ci13xxx *ci = mEp->ci;
+ struct ci13xxx_ep *hwep = container_of(ep, struct ci13xxx_ep, ep);
+ struct ci13xxx_req *hwreq = container_of(req, struct ci13xxx_req, req);
+ struct ci13xxx *ci = hwep->ci;
int retval = 0;
- if (ep == NULL || req == NULL || mEp->ep.desc == NULL)
+ if (ep == NULL || req == NULL || hwep->ep.desc == NULL)
return -EINVAL;
- if (mEp->type == USB_ENDPOINT_XFER_CONTROL) {
+ if (hwep->type == USB_ENDPOINT_XFER_CONTROL) {
if (req->length)
- mEp = (ci->ep0_dir == RX) ?
+ hwep = (ci->ep0_dir == RX) ?
ci->ep0out : ci->ep0in;
- if (!list_empty(&mEp->qh.queue)) {
- _ep_nuke(mEp);
+ if (!list_empty(&hwep->qh.queue)) {
+ _ep_nuke(hwep);
retval = -EOVERFLOW;
- dev_warn(mEp->ci->dev, "endpoint ctrl %X nuked\n",
- _usb_addr(mEp));
+ dev_warn(hwep->ci->dev, "endpoint ctrl %X nuked\n",
+ _usb_addr(hwep));
}
}
- if (usb_endpoint_xfer_isoc(mEp->ep.desc) &&
- mReq->req.length > (1 + mEp->ep.mult) * mEp->ep.maxpacket) {
- dev_err(mEp->ci->dev, "request length too big for isochronous\n");
+ if (usb_endpoint_xfer_isoc(hwep->ep.desc) &&
+ hwreq->req.length > (1 + hwep->ep.mult) * hwep->ep.maxpacket) {
+ dev_err(hwep->ci->dev, "request length too big for isochronous\n");
return -EMSGSIZE;
}
/* first nuke then test link, e.g. previous status has not sent */
- if (!list_empty(&mReq->queue)) {
- dev_err(mEp->ci->dev, "request already in queue\n");
+ if (!list_empty(&hwreq->queue)) {
+ dev_err(hwep->ci->dev, "request already in queue\n");
return -EBUSY;
}
/* push request */
- mReq->req.status = -EINPROGRESS;
- mReq->req.actual = 0;
+ hwreq->req.status = -EINPROGRESS;
+ hwreq->req.actual = 0;
- retval = _hardware_enqueue(mEp, mReq);
+ retval = _hardware_enqueue(hwep, hwreq);
if (retval == -EALREADY)
retval = 0;
if (!retval)
- list_add_tail(&mReq->queue, &mEp->qh.queue);
+ list_add_tail(&hwreq->queue, &hwep->qh.queue);
return retval;
}
*/
static int isr_get_status_response(struct ci13xxx *ci,
struct usb_ctrlrequest *setup)
-__releases(mEp->lock)
-__acquires(mEp->lock)
+__releases(hwep->lock)
+__acquires(hwep->lock)
{
- struct ci13xxx_ep *mEp = ci->ep0in;
+ struct ci13xxx_ep *hwep = ci->ep0in;
struct usb_request *req = NULL;
gfp_t gfp_flags = GFP_ATOMIC;
int dir, num, retval;
- if (mEp == NULL || setup == NULL)
+ if (hwep == NULL || setup == NULL)
return -EINVAL;
- spin_unlock(mEp->lock);
- req = usb_ep_alloc_request(&mEp->ep, gfp_flags);
- spin_lock(mEp->lock);
+ spin_unlock(hwep->lock);
+ req = usb_ep_alloc_request(&hwep->ep, gfp_flags);
+ spin_lock(hwep->lock);
if (req == NULL)
return -ENOMEM;
}
/* else do nothing; reserved for future use */
- retval = _ep_queue(&mEp->ep, req, gfp_flags);
+ retval = _ep_queue(&hwep->ep, req, gfp_flags);
if (retval)
goto err_free_buf;
err_free_buf:
kfree(req->buf);
err_free_req:
- spin_unlock(mEp->lock);
- usb_ep_free_request(&mEp->ep, req);
- spin_lock(mEp->lock);
+ spin_unlock(hwep->lock);
+ usb_ep_free_request(&hwep->ep, req);
+ spin_lock(hwep->lock);
return retval;
}
static int isr_setup_status_phase(struct ci13xxx *ci)
{
int retval;
- struct ci13xxx_ep *mEp;
+ struct ci13xxx_ep *hwep;
- mEp = (ci->ep0_dir == TX) ? ci->ep0out : ci->ep0in;
+ hwep = (ci->ep0_dir == TX) ? ci->ep0out : ci->ep0in;
ci->status->context = ci;
ci->status->complete = isr_setup_status_complete;
- retval = _ep_queue(&mEp->ep, ci->status, GFP_ATOMIC);
+ retval = _ep_queue(&hwep->ep, ci->status, GFP_ATOMIC);
return retval;
}
/**
* isr_tr_complete_low: transaction complete low level handler
- * @mEp: endpoint
+ * @hwep: endpoint
*
* This function returns an error code
* Caller must hold lock
*/
-static int isr_tr_complete_low(struct ci13xxx_ep *mEp)
-__releases(mEp->lock)
-__acquires(mEp->lock)
+static int isr_tr_complete_low(struct ci13xxx_ep *hwep)
+__releases(hwep->lock)
+__acquires(hwep->lock)
{
- struct ci13xxx_req *mReq, *mReqTemp;
- struct ci13xxx_ep *mEpTemp = mEp;
+ struct ci13xxx_req *hwreq, *hwreqtemp;
+ struct ci13xxx_ep *hweptemp = hwep;
int retval = 0;
- list_for_each_entry_safe(mReq, mReqTemp, &mEp->qh.queue,
+ list_for_each_entry_safe(hwreq, hwreqtemp, &hwep->qh.queue,
queue) {
- retval = _hardware_dequeue(mEp, mReq);
+ retval = _hardware_dequeue(hwep, hwreq);
if (retval < 0)
break;
- list_del_init(&mReq->queue);
- if (mReq->req.complete != NULL) {
- spin_unlock(mEp->lock);
- if ((mEp->type == USB_ENDPOINT_XFER_CONTROL) &&
- mReq->req.length)
- mEpTemp = mEp->ci->ep0in;
- mReq->req.complete(&mEpTemp->ep, &mReq->req);
- spin_lock(mEp->lock);
+ list_del_init(&hwreq->queue);
+ if (hwreq->req.complete != NULL) {
+ spin_unlock(hwep->lock);
+ if ((hwep->type == USB_ENDPOINT_XFER_CONTROL) &&
+ hwreq->req.length)
+ hweptemp = hwep->ci->ep0in;
+ hwreq->req.complete(&hweptemp->ep, &hwreq->req);
+ spin_lock(hwep->lock);
}
}
u8 tmode = 0;
for (i = 0; i < ci->hw_ep_max; i++) {
- struct ci13xxx_ep *mEp = &ci->ci13xxx_ep[i];
+ struct ci13xxx_ep *hwep = &ci->ci13xxx_ep[i];
int type, num, dir, err = -EINVAL;
struct usb_ctrlrequest req;
- if (mEp->ep.desc == NULL)
+ if (hwep->ep.desc == NULL)
continue; /* not configured */
if (hw_test_and_clear_complete(ci, i)) {
- err = isr_tr_complete_low(mEp);
- if (mEp->type == USB_ENDPOINT_XFER_CONTROL) {
+ err = isr_tr_complete_low(hwep);
+ if (hwep->type == USB_ENDPOINT_XFER_CONTROL) {
if (err > 0) /* needs status phase */
err = isr_setup_status_phase(ci);
if (err < 0) {
spin_unlock(&ci->lock);
- if (usb_ep_set_halt(&mEp->ep))
+ if (usb_ep_set_halt(&hwep->ep))
dev_err(ci->dev,
"error: ep_set_halt\n");
spin_lock(&ci->lock);
}
}
- if (mEp->type != USB_ENDPOINT_XFER_CONTROL ||
+ if (hwep->type != USB_ENDPOINT_XFER_CONTROL ||
!hw_test_and_clear_setup_status(ci, i))
continue;
/* read_setup_packet */
do {
hw_test_and_set_setup_guard(ci);
- memcpy(&req, &mEp->qh.ptr->setup, sizeof(req));
+ memcpy(&req, &hwep->qh.ptr->setup, sizeof(req));
} while (!hw_test_and_clear_setup_guard(ci));
type = req.bRequestType;
if (err < 0) {
spin_unlock(&ci->lock);
- if (usb_ep_set_halt(&mEp->ep))
+ if (usb_ep_set_halt(&hwep->ep))
dev_err(ci->dev, "error: ep_set_halt\n");
spin_lock(&ci->lock);
}
static int ep_enable(struct usb_ep *ep,
const struct usb_endpoint_descriptor *desc)
{
- struct ci13xxx_ep *mEp = container_of(ep, struct ci13xxx_ep, ep);
+ struct ci13xxx_ep *hwep = container_of(ep, struct ci13xxx_ep, ep);
int retval = 0;
unsigned long flags;
u32 cap = 0;
if (ep == NULL || desc == NULL)
return -EINVAL;
- spin_lock_irqsave(mEp->lock, flags);
+ spin_lock_irqsave(hwep->lock, flags);
/* only internal SW should enable ctrl endpts */
- mEp->ep.desc = desc;
+ hwep->ep.desc = desc;
- if (!list_empty(&mEp->qh.queue))
- dev_warn(mEp->ci->dev, "enabling a non-empty endpoint!\n");
+ if (!list_empty(&hwep->qh.queue))
+ dev_warn(hwep->ci->dev, "enabling a non-empty endpoint!\n");
- mEp->dir = usb_endpoint_dir_in(desc) ? TX : RX;
- mEp->num = usb_endpoint_num(desc);
- mEp->type = usb_endpoint_type(desc);
+ hwep->dir = usb_endpoint_dir_in(desc) ? TX : RX;
+ hwep->num = usb_endpoint_num(desc);
+ hwep->type = usb_endpoint_type(desc);
- mEp->ep.maxpacket = usb_endpoint_maxp(desc) & 0x07ff;
- mEp->ep.mult = QH_ISO_MULT(usb_endpoint_maxp(desc));
+ hwep->ep.maxpacket = usb_endpoint_maxp(desc) & 0x07ff;
+ hwep->ep.mult = QH_ISO_MULT(usb_endpoint_maxp(desc));
- if (mEp->type == USB_ENDPOINT_XFER_CONTROL)
+ if (hwep->type == USB_ENDPOINT_XFER_CONTROL)
cap |= QH_IOS;
- if (mEp->num)
+ if (hwep->num)
cap |= QH_ZLT;
- cap |= (mEp->ep.maxpacket << __ffs(QH_MAX_PKT)) & QH_MAX_PKT;
+ cap |= (hwep->ep.maxpacket << __ffs(QH_MAX_PKT)) & QH_MAX_PKT;
- mEp->qh.ptr->cap = cpu_to_le32(cap);
+ hwep->qh.ptr->cap = cpu_to_le32(cap);
- mEp->qh.ptr->td.next |= cpu_to_le32(TD_TERMINATE); /* needed? */
+ hwep->qh.ptr->td.next |= cpu_to_le32(TD_TERMINATE); /* needed? */
/*
* Enable endpoints in the HW other than ep0 as ep0
* is always enabled
*/
- if (mEp->num)
- retval |= hw_ep_enable(mEp->ci, mEp->num, mEp->dir, mEp->type);
+ if (hwep->num)
+ retval |= hw_ep_enable(hwep->ci, hwep->num, hwep->dir,
+ hwep->type);
- spin_unlock_irqrestore(mEp->lock, flags);
+ spin_unlock_irqrestore(hwep->lock, flags);
return retval;
}
*/
static int ep_disable(struct usb_ep *ep)
{
- struct ci13xxx_ep *mEp = container_of(ep, struct ci13xxx_ep, ep);
+ struct ci13xxx_ep *hwep = container_of(ep, struct ci13xxx_ep, ep);
int direction, retval = 0;
unsigned long flags;
if (ep == NULL)
return -EINVAL;
- else if (mEp->ep.desc == NULL)
+ else if (hwep->ep.desc == NULL)
return -EBUSY;
- spin_lock_irqsave(mEp->lock, flags);
+ spin_lock_irqsave(hwep->lock, flags);
/* only internal SW should disable ctrl endpts */
- direction = mEp->dir;
+ direction = hwep->dir;
do {
- retval |= _ep_nuke(mEp);
- retval |= hw_ep_disable(mEp->ci, mEp->num, mEp->dir);
+ retval |= _ep_nuke(hwep);
+ retval |= hw_ep_disable(hwep->ci, hwep->num, hwep->dir);
- if (mEp->type == USB_ENDPOINT_XFER_CONTROL)
- mEp->dir = (mEp->dir == TX) ? RX : TX;
+ if (hwep->type == USB_ENDPOINT_XFER_CONTROL)
+ hwep->dir = (hwep->dir == TX) ? RX : TX;
- } while (mEp->dir != direction);
+ } while (hwep->dir != direction);
- mEp->ep.desc = NULL;
+ hwep->ep.desc = NULL;
- spin_unlock_irqrestore(mEp->lock, flags);
+ spin_unlock_irqrestore(hwep->lock, flags);
return retval;
}
*/
static struct usb_request *ep_alloc_request(struct usb_ep *ep, gfp_t gfp_flags)
{
- struct ci13xxx_req *mReq = NULL;
+ struct ci13xxx_req *hwreq = NULL;
if (ep == NULL)
return NULL;
- mReq = kzalloc(sizeof(struct ci13xxx_req), gfp_flags);
- if (mReq != NULL) {
- INIT_LIST_HEAD(&mReq->queue);
- INIT_LIST_HEAD(&mReq->tds);
+ hwreq = kzalloc(sizeof(struct ci13xxx_req), gfp_flags);
+ if (hwreq != NULL) {
+ INIT_LIST_HEAD(&hwreq->queue);
+ INIT_LIST_HEAD(&hwreq->tds);
}
- return (mReq == NULL) ? NULL : &mReq->req;
+ return (hwreq == NULL) ? NULL : &hwreq->req;
}
/**
*/
static void ep_free_request(struct usb_ep *ep, struct usb_request *req)
{
- struct ci13xxx_ep *mEp = container_of(ep, struct ci13xxx_ep, ep);
- struct ci13xxx_req *mReq = container_of(req, struct ci13xxx_req, req);
+ struct ci13xxx_ep *hwep = container_of(ep, struct ci13xxx_ep, ep);
+ struct ci13xxx_req *hwreq = container_of(req, struct ci13xxx_req, req);
struct td_node *node, *tmpnode;
unsigned long flags;
if (ep == NULL || req == NULL) {
return;
- } else if (!list_empty(&mReq->queue)) {
- dev_err(mEp->ci->dev, "freeing queued request\n");
+ } else if (!list_empty(&hwreq->queue)) {
+ dev_err(hwep->ci->dev, "freeing queued request\n");
return;
}
- spin_lock_irqsave(mEp->lock, flags);
+ spin_lock_irqsave(hwep->lock, flags);
- list_for_each_entry_safe(node, tmpnode, &mReq->tds, td) {
- dma_pool_free(mEp->td_pool, node->ptr, node->dma);
+ list_for_each_entry_safe(node, tmpnode, &hwreq->tds, td) {
+ dma_pool_free(hwep->td_pool, node->ptr, node->dma);
list_del_init(&node->td);
node->ptr = NULL;
kfree(node);
}
- kfree(mReq);
+ kfree(hwreq);
- spin_unlock_irqrestore(mEp->lock, flags);
+ spin_unlock_irqrestore(hwep->lock, flags);
}
/**
static int ep_queue(struct usb_ep *ep, struct usb_request *req,
gfp_t __maybe_unused gfp_flags)
{
- struct ci13xxx_ep *mEp = container_of(ep, struct ci13xxx_ep, ep);
+ struct ci13xxx_ep *hwep = container_of(ep, struct ci13xxx_ep, ep);
int retval = 0;
unsigned long flags;
- if (ep == NULL || req == NULL || mEp->ep.desc == NULL)
+ if (ep == NULL || req == NULL || hwep->ep.desc == NULL)
return -EINVAL;
- spin_lock_irqsave(mEp->lock, flags);
+ spin_lock_irqsave(hwep->lock, flags);
retval = _ep_queue(ep, req, gfp_flags);
- spin_unlock_irqrestore(mEp->lock, flags);
+ spin_unlock_irqrestore(hwep->lock, flags);
return retval;
}
*/
static int ep_dequeue(struct usb_ep *ep, struct usb_request *req)
{
- struct ci13xxx_ep *mEp = container_of(ep, struct ci13xxx_ep, ep);
- struct ci13xxx_req *mReq = container_of(req, struct ci13xxx_req, req);
+ struct ci13xxx_ep *hwep = container_of(ep, struct ci13xxx_ep, ep);
+ struct ci13xxx_req *hwreq = container_of(req, struct ci13xxx_req, req);
unsigned long flags;
- if (ep == NULL || req == NULL || mReq->req.status != -EALREADY ||
- mEp->ep.desc == NULL || list_empty(&mReq->queue) ||
- list_empty(&mEp->qh.queue))
+ if (ep == NULL || req == NULL || hwreq->req.status != -EALREADY ||
+ hwep->ep.desc == NULL || list_empty(&hwreq->queue) ||
+ list_empty(&hwep->qh.queue))
return -EINVAL;
- spin_lock_irqsave(mEp->lock, flags);
+ spin_lock_irqsave(hwep->lock, flags);
- hw_ep_flush(mEp->ci, mEp->num, mEp->dir);
+ hw_ep_flush(hwep->ci, hwep->num, hwep->dir);
/* pop request */
- list_del_init(&mReq->queue);
+ list_del_init(&hwreq->queue);
- usb_gadget_unmap_request(&mEp->ci->gadget, req, mEp->dir);
+ usb_gadget_unmap_request(&hwep->ci->gadget, req, hwep->dir);
req->status = -ECONNRESET;
- if (mReq->req.complete != NULL) {
- spin_unlock(mEp->lock);
- mReq->req.complete(&mEp->ep, &mReq->req);
- spin_lock(mEp->lock);
+ if (hwreq->req.complete != NULL) {
+ spin_unlock(hwep->lock);
+ hwreq->req.complete(&hwep->ep, &hwreq->req);
+ spin_lock(hwep->lock);
}
- spin_unlock_irqrestore(mEp->lock, flags);
+ spin_unlock_irqrestore(hwep->lock, flags);
return 0;
}
*/
static int ep_set_halt(struct usb_ep *ep, int value)
{
- struct ci13xxx_ep *mEp = container_of(ep, struct ci13xxx_ep, ep);
+ struct ci13xxx_ep *hwep = container_of(ep, struct ci13xxx_ep, ep);
int direction, retval = 0;
unsigned long flags;
- if (ep == NULL || mEp->ep.desc == NULL)
+ if (ep == NULL || hwep->ep.desc == NULL)
return -EINVAL;
- if (usb_endpoint_xfer_isoc(mEp->ep.desc))
+ if (usb_endpoint_xfer_isoc(hwep->ep.desc))
return -EOPNOTSUPP;
- spin_lock_irqsave(mEp->lock, flags);
+ spin_lock_irqsave(hwep->lock, flags);
#ifndef STALL_IN
/* g_file_storage MS compliant but g_zero fails chapter 9 compliance */
- if (value && mEp->type == USB_ENDPOINT_XFER_BULK && mEp->dir == TX &&
- !list_empty(&mEp->qh.queue)) {
- spin_unlock_irqrestore(mEp->lock, flags);
+ if (value && hwep->type == USB_ENDPOINT_XFER_BULK && hwep->dir == TX &&
+ !list_empty(&hwep->qh.queue)) {
+ spin_unlock_irqrestore(hwep->lock, flags);
return -EAGAIN;
}
#endif
- direction = mEp->dir;
+ direction = hwep->dir;
do {
- retval |= hw_ep_set_halt(mEp->ci, mEp->num, mEp->dir, value);
+ retval |= hw_ep_set_halt(hwep->ci, hwep->num, hwep->dir, value);
if (!value)
- mEp->wedge = 0;
+ hwep->wedge = 0;
- if (mEp->type == USB_ENDPOINT_XFER_CONTROL)
- mEp->dir = (mEp->dir == TX) ? RX : TX;
+ if (hwep->type == USB_ENDPOINT_XFER_CONTROL)
+ hwep->dir = (hwep->dir == TX) ? RX : TX;
- } while (mEp->dir != direction);
+ } while (hwep->dir != direction);
- spin_unlock_irqrestore(mEp->lock, flags);
+ spin_unlock_irqrestore(hwep->lock, flags);
return retval;
}
*/
static int ep_set_wedge(struct usb_ep *ep)
{
- struct ci13xxx_ep *mEp = container_of(ep, struct ci13xxx_ep, ep);
+ struct ci13xxx_ep *hwep = container_of(ep, struct ci13xxx_ep, ep);
unsigned long flags;
- if (ep == NULL || mEp->ep.desc == NULL)
+ if (ep == NULL || hwep->ep.desc == NULL)
return -EINVAL;
- spin_lock_irqsave(mEp->lock, flags);
- mEp->wedge = 1;
- spin_unlock_irqrestore(mEp->lock, flags);
+ spin_lock_irqsave(hwep->lock, flags);
+ hwep->wedge = 1;
+ spin_unlock_irqrestore(hwep->lock, flags);
return usb_ep_set_halt(ep);
}
*/
static void ep_fifo_flush(struct usb_ep *ep)
{
- struct ci13xxx_ep *mEp = container_of(ep, struct ci13xxx_ep, ep);
+ struct ci13xxx_ep *hwep = container_of(ep, struct ci13xxx_ep, ep);
unsigned long flags;
if (ep == NULL) {
- dev_err(mEp->ci->dev, "%02X: -EINVAL\n", _usb_addr(mEp));
+ dev_err(hwep->ci->dev, "%02X: -EINVAL\n", _usb_addr(hwep));
return;
}
- spin_lock_irqsave(mEp->lock, flags);
+ spin_lock_irqsave(hwep->lock, flags);
- hw_ep_flush(mEp->ci, mEp->num, mEp->dir);
+ hw_ep_flush(hwep->ci, hwep->num, hwep->dir);
- spin_unlock_irqrestore(mEp->lock, flags);
+ spin_unlock_irqrestore(hwep->lock, flags);
}
/**
return ret;
}
-static int ci13xxx_vbus_draw(struct usb_gadget *_gadget, unsigned mA)
+static int ci13xxx_vbus_draw(struct usb_gadget *_gadget, unsigned ma)
{
struct ci13xxx *ci = container_of(_gadget, struct ci13xxx, gadget);
if (ci->transceiver)
- return usb_phy_set_power(ci->transceiver, mA);
+ return usb_phy_set_power(ci->transceiver, ma);
return -ENOTSUPP;
}
for (i = 0; i < ci->hw_ep_max/2; i++)
for (j = RX; j <= TX; j++) {
int k = i + j * ci->hw_ep_max/2;
- struct ci13xxx_ep *mEp = &ci->ci13xxx_ep[k];
+ struct ci13xxx_ep *hwep = &ci->ci13xxx_ep[k];
- scnprintf(mEp->name, sizeof(mEp->name), "ep%i%s", i,
+ scnprintf(hwep->name, sizeof(hwep->name), "ep%i%s", i,
(j == TX) ? "in" : "out");
- mEp->ci = ci;
- mEp->lock = &ci->lock;
- mEp->td_pool = ci->td_pool;
+ hwep->ci = ci;
+ hwep->lock = &ci->lock;
+ hwep->td_pool = ci->td_pool;
- mEp->ep.name = mEp->name;
- mEp->ep.ops = &usb_ep_ops;
+ hwep->ep.name = hwep->name;
+ hwep->ep.ops = &usb_ep_ops;
/*
* for ep0: maxP defined in desc, for other
* eps, maxP is set by epautoconfig() called
* by gadget layer
*/
- mEp->ep.maxpacket = (unsigned short)~0;
+ hwep->ep.maxpacket = (unsigned short)~0;
- INIT_LIST_HEAD(&mEp->qh.queue);
- mEp->qh.ptr = dma_pool_alloc(ci->qh_pool, GFP_KERNEL,
- &mEp->qh.dma);
- if (mEp->qh.ptr == NULL)
+ INIT_LIST_HEAD(&hwep->qh.queue);
+ hwep->qh.ptr = dma_pool_alloc(ci->qh_pool, GFP_KERNEL,
+ &hwep->qh.dma);
+ if (hwep->qh.ptr == NULL)
retval = -ENOMEM;
else
- memset(mEp->qh.ptr, 0, sizeof(*mEp->qh.ptr));
+ memset(hwep->qh.ptr, 0, sizeof(*hwep->qh.ptr));
/*
* set up shorthands for ep0 out and in endpoints,
*/
if (i == 0) {
if (j == RX)
- ci->ep0out = mEp;
+ ci->ep0out = hwep;
else
- ci->ep0in = mEp;
+ ci->ep0in = hwep;
- mEp->ep.maxpacket = CTRL_PAYLOAD_MAX;
+ hwep->ep.maxpacket = CTRL_PAYLOAD_MAX;
continue;
}
- list_add_tail(&mEp->ep.ep_list, &ci->gadget.ep_list);
+ list_add_tail(&hwep->ep.ep_list, &ci->gadget.ep_list);
}
return retval;
int i;
for (i = 0; i < ci->hw_ep_max; i++) {
- struct ci13xxx_ep *mEp = &ci->ci13xxx_ep[i];
+ struct ci13xxx_ep *hwep = &ci->ci13xxx_ep[i];
- dma_pool_free(ci->qh_pool, mEp->qh.ptr, mEp->qh.dma);
+ dma_pool_free(ci->qh_pool, hwep->qh.ptr, hwep->qh.dma);
}
}
git.openpandora.org / pandora-kernel.git / blobdiff