]> Pileus Git - ~andy/linux/blobdiff - drivers/usb/host/uhci-q.c
USB: UHCI: Add support for big endian descriptors
[~andy/linux] / drivers / usb / host / uhci-q.c
index af77abb5c68bade81ef44f52dc3fe074f1c2d983..84ed28b34f934d86ecef647d73580309baf3f2b8 100644 (file)
@@ -29,12 +29,12 @@ static void uhci_set_next_interrupt(struct uhci_hcd *uhci)
 {
        if (uhci->is_stopped)
                mod_timer(&uhci_to_hcd(uhci)->rh_timer, jiffies);
-       uhci->term_td->status |= cpu_to_le32(TD_CTRL_IOC);
+       uhci->term_td->status |= cpu_to_hc32(uhci, TD_CTRL_IOC);
 }
 
 static inline void uhci_clear_next_interrupt(struct uhci_hcd *uhci)
 {
-       uhci->term_td->status &= ~cpu_to_le32(TD_CTRL_IOC);
+       uhci->term_td->status &= ~cpu_to_hc32(uhci, TD_CTRL_IOC);
 }
 
 
@@ -53,7 +53,7 @@ static void uhci_fsbr_on(struct uhci_hcd *uhci)
        uhci->fsbr_is_on = 1;
        lqh = list_entry(uhci->skel_async_qh->node.prev,
                        struct uhci_qh, node);
-       lqh->link = LINK_TO_QH(uhci->skel_term_qh);
+       lqh->link = LINK_TO_QH(uhci, uhci->skel_term_qh);
 }
 
 static void uhci_fsbr_off(struct uhci_hcd *uhci)
@@ -65,7 +65,7 @@ static void uhci_fsbr_off(struct uhci_hcd *uhci)
        uhci->fsbr_is_on = 0;
        lqh = list_entry(uhci->skel_async_qh->node.prev,
                        struct uhci_qh, node);
-       lqh->link = UHCI_PTR_TERM;
+       lqh->link = UHCI_PTR_TERM(uhci);
 }
 
 static void uhci_add_fsbr(struct uhci_hcd *uhci, struct urb *urb)
@@ -131,12 +131,12 @@ static void uhci_free_td(struct uhci_hcd *uhci, struct uhci_td *td)
        dma_pool_free(uhci->td_pool, td, td->dma_handle);
 }
 
-static inline void uhci_fill_td(struct uhci_td *td, u32 status,
-               u32 token, u32 buffer)
+static inline void uhci_fill_td(struct uhci_hcd *uhci, struct uhci_td *td,
+               u32 status, u32 token, u32 buffer)
 {
-       td->status = cpu_to_le32(status);
-       td->token = cpu_to_le32(token);
-       td->buffer = cpu_to_le32(buffer);
+       td->status = cpu_to_hc32(uhci, status);
+       td->token = cpu_to_hc32(uhci, token);
+       td->buffer = cpu_to_hc32(uhci, buffer);
 }
 
 static void uhci_add_td_to_urbp(struct uhci_td *td, struct urb_priv *urbp)
@@ -170,11 +170,11 @@ static inline void uhci_insert_td_in_frame_list(struct uhci_hcd *uhci,
 
                td->link = ltd->link;
                wmb();
-               ltd->link = LINK_TO_TD(td);
+               ltd->link = LINK_TO_TD(uhci, td);
        } else {
                td->link = uhci->frame[framenum];
                wmb();
-               uhci->frame[framenum] = LINK_TO_TD(td);
+               uhci->frame[framenum] = LINK_TO_TD(uhci, td);
                uhci->frame_cpu[framenum] = td;
        }
 }
@@ -198,7 +198,7 @@ static inline void uhci_remove_td_from_frame_list(struct uhci_hcd *uhci,
                        ntd = list_entry(td->fl_list.next,
                                         struct uhci_td,
                                         fl_list);
-                       uhci->frame[td->frame] = LINK_TO_TD(ntd);
+                       uhci->frame[td->frame] = LINK_TO_TD(uhci, ntd);
                        uhci->frame_cpu[td->frame] = ntd;
                }
        } else {
@@ -255,8 +255,8 @@ static struct uhci_qh *uhci_alloc_qh(struct uhci_hcd *uhci,
        memset(qh, 0, sizeof(*qh));
        qh->dma_handle = dma_handle;
 
-       qh->element = UHCI_PTR_TERM;
-       qh->link = UHCI_PTR_TERM;
+       qh->element = UHCI_PTR_TERM(uhci);
+       qh->link = UHCI_PTR_TERM(uhci);
 
        INIT_LIST_HEAD(&qh->queue);
        INIT_LIST_HEAD(&qh->node);
@@ -348,9 +348,9 @@ static int uhci_cleanup_queue(struct uhci_hcd *uhci, struct uhci_qh *qh,
 
        /* If the QH element pointer is UHCI_PTR_TERM then then currently
         * executing URB has already been unlinked, so this one isn't it. */
-       if (qh_element(qh) == UHCI_PTR_TERM)
+       if (qh_element(qh) == UHCI_PTR_TERM(uhci))
                goto done;
-       qh->element = UHCI_PTR_TERM;
+       qh->element = UHCI_PTR_TERM(uhci);
 
        /* Control pipes don't have to worry about toggles */
        if (qh->type == USB_ENDPOINT_XFER_CONTROL)
@@ -360,7 +360,7 @@ static int uhci_cleanup_queue(struct uhci_hcd *uhci, struct uhci_qh *qh,
        WARN_ON(list_empty(&urbp->td_list));
        td = list_entry(urbp->td_list.next, struct uhci_td, list);
        qh->needs_fixup = 1;
-       qh->initial_toggle = uhci_toggle(td_token(td));
+       qh->initial_toggle = uhci_toggle(td_token(uhci, td));
 
 done:
        return ret;
@@ -370,7 +370,8 @@ done:
  * Fix up the data toggles for URBs in a queue, when one of them
  * terminates early (short transfer, error, or dequeued).
  */
-static void uhci_fixup_toggles(struct uhci_qh *qh, int skip_first)
+static void uhci_fixup_toggles(struct uhci_hcd *uhci, struct uhci_qh *qh,
+                       int skip_first)
 {
        struct urb_priv *urbp = NULL;
        struct uhci_td *td;
@@ -384,7 +385,7 @@ static void uhci_fixup_toggles(struct uhci_qh *qh, int skip_first)
 
        /* When starting with the first URB, if the QH element pointer is
         * still valid then we know the URB's toggles are okay. */
-       else if (qh_element(qh) != UHCI_PTR_TERM)
+       else if (qh_element(qh) != UHCI_PTR_TERM(uhci))
                toggle = 2;
 
        /* Fix up the toggle for the URBs in the queue.  Normally this
@@ -396,15 +397,15 @@ static void uhci_fixup_toggles(struct uhci_qh *qh, int skip_first)
                /* If the first TD has the right toggle value, we don't
                 * need to change any toggles in this URB */
                td = list_entry(urbp->td_list.next, struct uhci_td, list);
-               if (toggle > 1 || uhci_toggle(td_token(td)) == toggle) {
+               if (toggle > 1 || uhci_toggle(td_token(uhci, td)) == toggle) {
                        td = list_entry(urbp->td_list.prev, struct uhci_td,
                                        list);
-                       toggle = uhci_toggle(td_token(td)) ^ 1;
+                       toggle = uhci_toggle(td_token(uhci, td)) ^ 1;
 
                /* Otherwise all the toggles in the URB have to be switched */
                } else {
                        list_for_each_entry(td, &urbp->td_list, list) {
-                               td->token ^= cpu_to_le32(
+                               td->token ^= cpu_to_hc32(uhci,
                                                        TD_TOKEN_TOGGLE);
                                toggle ^= 1;
                        }
@@ -441,7 +442,7 @@ static void link_interrupt(struct uhci_hcd *uhci, struct uhci_qh *qh)
        pqh = list_entry(qh->node.prev, struct uhci_qh, node);
        qh->link = pqh->link;
        wmb();
-       pqh->link = LINK_TO_QH(qh);
+       pqh->link = LINK_TO_QH(uhci, qh);
 }
 
 /*
@@ -451,7 +452,7 @@ static void link_interrupt(struct uhci_hcd *uhci, struct uhci_qh *qh)
 static void link_async(struct uhci_hcd *uhci, struct uhci_qh *qh)
 {
        struct uhci_qh *pqh;
-       __le32 link_to_new_qh;
+       __hc32 link_to_new_qh;
 
        /* Find the predecessor QH for our new one and insert it in the list.
         * The list of QHs is expected to be short, so linear search won't
@@ -465,7 +466,7 @@ static void link_async(struct uhci_hcd *uhci, struct uhci_qh *qh)
        /* Link it into the schedule */
        qh->link = pqh->link;
        wmb();
-       link_to_new_qh = LINK_TO_QH(qh);
+       link_to_new_qh = LINK_TO_QH(uhci, qh);
        pqh->link = link_to_new_qh;
 
        /* If this is now the first FSBR QH, link the terminating skeleton
@@ -483,13 +484,13 @@ static void uhci_activate_qh(struct uhci_hcd *uhci, struct uhci_qh *qh)
 
        /* Set the element pointer if it isn't set already.
         * This isn't needed for Isochronous queues, but it doesn't hurt. */
-       if (qh_element(qh) == UHCI_PTR_TERM) {
+       if (qh_element(qh) == UHCI_PTR_TERM(uhci)) {
                struct urb_priv *urbp = list_entry(qh->queue.next,
                                struct urb_priv, node);
                struct uhci_td *td = list_entry(urbp->td_list.next,
                                struct uhci_td, list);
 
-               qh->element = LINK_TO_TD(td);
+               qh->element = LINK_TO_TD(uhci, td);
        }
 
        /* Treat the queue as if it has just advanced */
@@ -533,7 +534,7 @@ static void unlink_interrupt(struct uhci_hcd *uhci, struct uhci_qh *qh)
 static void unlink_async(struct uhci_hcd *uhci, struct uhci_qh *qh)
 {
        struct uhci_qh *pqh;
-       __le32 link_to_next_qh = qh->link;
+       __hc32 link_to_next_qh = qh->link;
 
        pqh = list_entry(qh->node.prev, struct uhci_qh, node);
        pqh->link = link_to_next_qh;
@@ -757,8 +758,8 @@ static void uhci_free_urb_priv(struct uhci_hcd *uhci,
 /*
  * Map status to standard result codes
  *
- * <status> is (td_status(td) & 0xF60000), a.k.a.
- * uhci_status_bits(td_status(td)).
+ * <status> is (td_status(uhci, td) & 0xF60000), a.k.a.
+ * uhci_status_bits(td_status(uhci, td)).
  * Note: <status> does not include the TD_CTRL_NAK bit.
  * <dir_out> is True for output TDs and False for input TDs.
  */
@@ -794,7 +795,7 @@ static int uhci_submit_control(struct uhci_hcd *uhci, struct urb *urb,
        int maxsze = le16_to_cpu(qh->hep->desc.wMaxPacketSize);
        int len = urb->transfer_buffer_length;
        dma_addr_t data = urb->transfer_dma;
-       __le32 *plink;
+       __hc32 *plink;
        struct urb_priv *urbp = urb->hcpriv;
        int skel;
 
@@ -811,7 +812,7 @@ static int uhci_submit_control(struct uhci_hcd *uhci, struct urb *urb,
         */
        td = qh->dummy_td;
        uhci_add_td_to_urbp(td, urbp);
-       uhci_fill_td(td, status, destination | uhci_explen(8),
+       uhci_fill_td(uhci, td, status, destination | uhci_explen(8),
                        urb->setup_dma);
        plink = &td->link;
        status |= TD_CTRL_ACTIVE;
@@ -844,14 +845,14 @@ static int uhci_submit_control(struct uhci_hcd *uhci, struct urb *urb,
                td = uhci_alloc_td(uhci);
                if (!td)
                        goto nomem;
-               *plink = LINK_TO_TD(td);
+               *plink = LINK_TO_TD(uhci, td);
 
                /* Alternate Data0/1 (start with Data1) */
                destination ^= TD_TOKEN_TOGGLE;
 
                uhci_add_td_to_urbp(td, urbp);
-               uhci_fill_td(td, status, destination | uhci_explen(pktsze),
-                               data);
+               uhci_fill_td(uhci, td, status,
+                       destination | uhci_explen(pktsze), data);
                plink = &td->link;
 
                data += pktsze;
@@ -864,14 +865,14 @@ static int uhci_submit_control(struct uhci_hcd *uhci, struct urb *urb,
        td = uhci_alloc_td(uhci);
        if (!td)
                goto nomem;
-       *plink = LINK_TO_TD(td);
+       *plink = LINK_TO_TD(uhci, td);
 
        /* Change direction for the status transaction */
        destination ^= (USB_PID_IN ^ USB_PID_OUT);
        destination |= TD_TOKEN_TOGGLE;         /* End in Data1 */
 
        uhci_add_td_to_urbp(td, urbp);
-       uhci_fill_td(td, status | TD_CTRL_IOC,
+       uhci_fill_td(uhci, td, status | TD_CTRL_IOC,
                        destination | uhci_explen(0), 0);
        plink = &td->link;
 
@@ -881,11 +882,11 @@ static int uhci_submit_control(struct uhci_hcd *uhci, struct urb *urb,
        td = uhci_alloc_td(uhci);
        if (!td)
                goto nomem;
-       *plink = LINK_TO_TD(td);
+       *plink = LINK_TO_TD(uhci, td);
 
-       uhci_fill_td(td, 0, USB_PID_OUT | uhci_explen(0), 0);
+       uhci_fill_td(uhci, td, 0, USB_PID_OUT | uhci_explen(0), 0);
        wmb();
-       qh->dummy_td->status |= cpu_to_le32(TD_CTRL_ACTIVE);
+       qh->dummy_td->status |= cpu_to_hc32(uhci, TD_CTRL_ACTIVE);
        qh->dummy_td = td;
 
        /* Low-speed transfers get a different queue, and won't hog the bus.
@@ -921,7 +922,7 @@ static int uhci_submit_common(struct uhci_hcd *uhci, struct urb *urb,
        int len = urb->transfer_buffer_length;
        int this_sg_len;
        dma_addr_t data;
-       __le32 *plink;
+       __hc32 *plink;
        struct urb_priv *urbp = urb->hcpriv;
        unsigned int toggle;
        struct scatterlist  *sg;
@@ -974,10 +975,10 @@ static int uhci_submit_common(struct uhci_hcd *uhci, struct urb *urb,
                        td = uhci_alloc_td(uhci);
                        if (!td)
                                goto nomem;
-                       *plink = LINK_TO_TD(td);
+                       *plink = LINK_TO_TD(uhci, td);
                }
                uhci_add_td_to_urbp(td, urbp);
-               uhci_fill_td(td, status,
+               uhci_fill_td(uhci, td, status,
                                destination | uhci_explen(pktsze) |
                                        (toggle << TD_TOKEN_TOGGLE_SHIFT),
                                data);
@@ -1010,10 +1011,10 @@ static int uhci_submit_common(struct uhci_hcd *uhci, struct urb *urb,
                td = uhci_alloc_td(uhci);
                if (!td)
                        goto nomem;
-               *plink = LINK_TO_TD(td);
+               *plink = LINK_TO_TD(uhci, td);
 
                uhci_add_td_to_urbp(td, urbp);
-               uhci_fill_td(td, status,
+               uhci_fill_td(uhci, td, status,
                                destination | uhci_explen(0) |
                                        (toggle << TD_TOKEN_TOGGLE_SHIFT),
                                data);
@@ -1028,7 +1029,7 @@ static int uhci_submit_common(struct uhci_hcd *uhci, struct urb *urb,
         * fast side but not enough to justify delaying an interrupt
         * more than 2 or 3 URBs, so we will ignore the URB_NO_INTERRUPT
         * flag setting. */
-       td->status |= cpu_to_le32(TD_CTRL_IOC);
+       td->status |= cpu_to_hc32(uhci, TD_CTRL_IOC);
 
        /*
         * Build the new dummy TD and activate the old one
@@ -1036,11 +1037,11 @@ static int uhci_submit_common(struct uhci_hcd *uhci, struct urb *urb,
        td = uhci_alloc_td(uhci);
        if (!td)
                goto nomem;
-       *plink = LINK_TO_TD(td);
+       *plink = LINK_TO_TD(uhci, td);
 
-       uhci_fill_td(td, 0, USB_PID_OUT | uhci_explen(0), 0);
+       uhci_fill_td(uhci, td, 0, USB_PID_OUT | uhci_explen(0), 0);
        wmb();
-       qh->dummy_td->status |= cpu_to_le32(TD_CTRL_ACTIVE);
+       qh->dummy_td->status |= cpu_to_hc32(uhci, TD_CTRL_ACTIVE);
        qh->dummy_td = td;
 
        usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
@@ -1133,7 +1134,7 @@ static int uhci_fixup_short_transfer(struct uhci_hcd *uhci,
                 * the queue at the status stage transaction, which is
                 * the last TD. */
                WARN_ON(list_empty(&urbp->td_list));
-               qh->element = LINK_TO_TD(td);
+               qh->element = LINK_TO_TD(uhci, td);
                tmp = td->list.prev;
                ret = -EINPROGRESS;
 
@@ -1142,8 +1143,9 @@ static int uhci_fixup_short_transfer(struct uhci_hcd *uhci,
                /* When a bulk/interrupt transfer is short, we have to
                 * fix up the toggles of the following URBs on the queue
                 * before restarting the queue at the next URB. */
-               qh->initial_toggle = uhci_toggle(td_token(qh->post_td)) ^ 1;
-               uhci_fixup_toggles(qh, 1);
+               qh->initial_toggle =
+                       uhci_toggle(td_token(uhci, qh->post_td)) ^ 1;
+               uhci_fixup_toggles(uhci, qh, 1);
 
                if (list_empty(&urbp->td_list))
                        td = qh->post_td;
@@ -1178,7 +1180,7 @@ static int uhci_result_common(struct uhci_hcd *uhci, struct urb *urb)
                unsigned int ctrlstat;
                int len;
 
-               ctrlstat = td_status(td);
+               ctrlstat = td_status(uhci, td);
                status = uhci_status_bits(ctrlstat);
                if (status & TD_CTRL_ACTIVE)
                        return -EINPROGRESS;
@@ -1188,7 +1190,7 @@ static int uhci_result_common(struct uhci_hcd *uhci, struct urb *urb)
 
                if (status) {
                        ret = uhci_map_status(status,
-                                       uhci_packetout(td_token(td)));
+                                       uhci_packetout(td_token(uhci, td)));
                        if ((debug == 1 && ret != -EPIPE) || debug > 1) {
                                /* Some debugging code */
                                dev_dbg(&urb->dev->dev,
@@ -1204,7 +1206,7 @@ static int uhci_result_common(struct uhci_hcd *uhci, struct urb *urb)
                        }
 
                /* Did we receive a short packet? */
-               } else if (len < uhci_expected_length(td_token(td))) {
+               } else if (len < uhci_expected_length(td_token(uhci, td))) {
 
                        /* For control transfers, go to the status TD if
                         * this isn't already the last data TD */
@@ -1236,10 +1238,10 @@ err:
        if (ret < 0) {
                /* Note that the queue has stopped and save
                 * the next toggle value */
-               qh->element = UHCI_PTR_TERM;
+               qh->element = UHCI_PTR_TERM(uhci);
                qh->is_stopped = 1;
                qh->needs_fixup = (qh->type != USB_ENDPOINT_XFER_CONTROL);
-               qh->initial_toggle = uhci_toggle(td_token(td)) ^
+               qh->initial_toggle = uhci_toggle(td_token(uhci, td)) ^
                                (ret == -EREMOTEIO);
 
        } else          /* Short packet received */
@@ -1335,14 +1337,14 @@ static int uhci_submit_isochronous(struct uhci_hcd *uhci, struct urb *urb,
                        return -ENOMEM;
 
                uhci_add_td_to_urbp(td, urbp);
-               uhci_fill_td(td, status, destination |
+               uhci_fill_td(uhci, td, status, destination |
                                uhci_explen(urb->iso_frame_desc[i].length),
                                urb->transfer_dma +
                                        urb->iso_frame_desc[i].offset);
        }
 
        /* Set the interrupt-on-completion flag on the last packet. */
-       td->status |= cpu_to_le32(TD_CTRL_IOC);
+       td->status |= cpu_to_hc32(uhci, TD_CTRL_IOC);
 
        /* Add the TDs to the frame list */
        frame = urb->start_frame;
@@ -1378,7 +1380,7 @@ static int uhci_result_isochronous(struct uhci_hcd *uhci, struct urb *urb)
 
                uhci_remove_tds_from_frame(uhci, qh->iso_frame);
 
-               ctrlstat = td_status(td);
+               ctrlstat = td_status(uhci, td);
                if (ctrlstat & TD_CTRL_ACTIVE) {
                        status = -EXDEV;        /* TD was added too late? */
                } else {
@@ -1629,7 +1631,7 @@ restart:
         * queue, the QH can now be re-activated. */
        if (!list_empty(&qh->queue)) {
                if (qh->needs_fixup)
-                       uhci_fixup_toggles(qh, 0);
+                       uhci_fixup_toggles(uhci, qh, 0);
 
                /* If the first URB on the queue wants FSBR but its time
                 * limit has expired, set the next TD to interrupt on
@@ -1639,7 +1641,7 @@ restart:
                        struct uhci_td *td = list_entry(urbp->td_list.next,
                                        struct uhci_td, list);
 
-                       td->status |= __cpu_to_le32(TD_CTRL_IOC);
+                       td->status |= cpu_to_hc32(uhci, TD_CTRL_IOC);
                }
 
                uhci_activate_qh(uhci, qh);
@@ -1686,7 +1688,7 @@ static int uhci_advance_check(struct uhci_hcd *uhci, struct uhci_qh *qh)
        } else {
                urbp = list_entry(qh->queue.next, struct urb_priv, node);
                td = list_entry(urbp->td_list.next, struct uhci_td, list);
-               status = td_status(td);
+               status = td_status(uhci, td);
                if (!(status & TD_CTRL_ACTIVE)) {
 
                        /* We're okay, the queue has advanced */
@@ -1704,7 +1706,8 @@ static int uhci_advance_check(struct uhci_hcd *uhci, struct uhci_qh *qh)
        if (time_after(jiffies, qh->advance_jiffies + QH_WAIT_TIMEOUT)) {
 
                /* Detect the Intel bug and work around it */
-               if (qh->post_td && qh_element(qh) == LINK_TO_TD(qh->post_td)) {
+               if (qh->post_td && qh_element(qh) ==
+                       LINK_TO_TD(uhci, qh->post_td)) {
                        qh->element = qh->post_td->link;
                        qh->advance_jiffies = jiffies;
                        ret = 1;