static const struct usb_device_id usb_quirk_list[] = {
/* HP 5300/5370C scanner */
{ USB_DEVICE(0x03f0, 0x0701), .driver_info = USB_QUIRK_STRING_FETCH_255 },
-
+ /* Seiko Epson Corp - Perfection 1670 */
+ { USB_DEVICE(0x04b8, 0x011f), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
/* Elsa MicroLink 56k (V.250) */
{ USB_DEVICE(0x05cc, 0x2267), .driver_info = USB_QUIRK_NO_AUTOSUSPEND },
/*-------------------------------------------------------------------------*/
+/*
+ * dma-coherent memory allocation (for dma-capable endpoints)
+ *
+ * NOTE: the dma_*_coherent() API calls suck. Most implementations are
+ * (a) page-oriented, so small buffers lose big; and (b) asymmetric with
+ * respect to calls with irqs disabled: alloc is safe, free is not.
+ * We currently work around (b), but not (a).
+ */
+
static void *
omap_alloc_buffer(
struct usb_ep *_ep,
void *retval;
struct omap_ep *ep;
+ if (!_ep)
+ return NULL;
+
ep = container_of(_ep, struct omap_ep, ep);
if (use_dma && ep->has_dma) {
static int warned;
return retval;
}
+static DEFINE_SPINLOCK(buflock);
+static LIST_HEAD(buffers);
+
+struct free_record {
+ struct list_head list;
+ struct device *dev;
+ unsigned bytes;
+ dma_addr_t dma;
+};
+
+static void do_free(unsigned long ignored)
+{
+ spin_lock_irq(&buflock);
+ while (!list_empty(&buffers)) {
+ struct free_record *buf;
+
+ buf = list_entry(buffers.next, struct free_record, list);
+ list_del(&buf->list);
+ spin_unlock_irq(&buflock);
+
+ dma_free_coherent(buf->dev, buf->bytes, buf, buf->dma);
+
+ spin_lock_irq(&buflock);
+ }
+ spin_unlock_irq(&buflock);
+}
+
+static DECLARE_TASKLET(deferred_free, do_free, 0);
+
static void omap_free_buffer(
struct usb_ep *_ep,
void *buf,
unsigned bytes
)
{
- struct omap_ep *ep;
+ if (!_ep) {
+ WARN_ON(1);
+ return;
+ }
- ep = container_of(_ep, struct omap_ep, ep);
- if (use_dma && _ep && ep->has_dma)
- dma_free_coherent(ep->udc->gadget.dev.parent, bytes, buf, dma);
- else
- kfree (buf);
+ /* free memory into the right allocator */
+ if (dma != DMA_ADDR_INVALID) {
+ struct omap_ep *ep;
+ struct free_record *rec = buf;
+ unsigned long flags;
+
+ ep = container_of(_ep, struct omap_ep, ep);
+
+ rec->dev = ep->udc->gadget.dev.parent;
+ rec->bytes = bytes;
+ rec->dma = dma;
+
+ spin_lock_irqsave(&buflock, flags);
+ list_add_tail(&rec->list, &buffers);
+ tasklet_schedule(&deferred_free);
+ spin_unlock_irqrestore(&buflock, flags);
+ } else
+ kfree(buf);
}
/*-------------------------------------------------------------------------*/
udc->ep0_pending = 0;
break;
case USB_REQ_GET_STATUS:
+ /* USB_ENDPOINT_HALT status? */
+ if (u.r.bRequestType != (USB_DIR_IN|USB_RECIP_ENDPOINT))
+ goto intf_status;
+
+ /* ep0 never stalls */
+ if (!(w_index & 0xf))
+ goto zero_status;
+
+ /* only active endpoints count */
+ ep = &udc->ep[w_index & 0xf];
+ if (w_index & USB_DIR_IN)
+ ep += 16;
+ if (!ep->desc)
+ goto do_stall;
+
+ /* iso never stalls */
+ if (ep->bmAttributes == USB_ENDPOINT_XFER_ISOC)
+ goto zero_status;
+
+ /* FIXME don't assume non-halted endpoints!! */
+ ERR("%s status, can't report\n", ep->ep.name);
+ goto do_stall;
+
+intf_status:
/* return interface status. if we were pedantic,
* we'd detect non-existent interfaces, and stall.
*/
if (u.r.bRequestType
!= (USB_DIR_IN|USB_RECIP_INTERFACE))
goto delegate;
+
+zero_status:
/* return two zero bytes */
UDC_EP_NUM_REG = UDC_EP_SEL|UDC_EP_DIR;
UDC_DATA_REG = 0;
/*-------------------------------------------------------------------------*/
-static inline int machine_needs_vbus_session(void)
+static inline int machine_without_vbus_sense(void)
{
return (machine_is_omap_innovator()
|| machine_is_omap_osk()
/* boards that don't have VBUS sensing can't autogate 48MHz;
* can't enter deep sleep while a gadget driver is active.
*/
- if (machine_needs_vbus_session())
+ if (machine_without_vbus_sense())
omap_vbus_session(&udc->gadget, 1);
done:
if (udc->dc_clk != NULL)
omap_udc_enable_clock(1);
- if (machine_needs_vbus_session())
+ if (machine_without_vbus_sense())
omap_vbus_session(&udc->gadget, 0);
if (udc->transceiver)
hmc = HMC_1510;
type = "(unknown)";
- if (machine_is_omap_innovator() || machine_is_sx1()) {
+ if (machine_without_vbus_sense()) {
/* just set up software VBUS detect, and then
* later rig it so we always report VBUS.
* FIXME without really sensing VBUS, we can't
return out - buf;
}
-static int uhci_show_qh(struct uhci_qh *qh, char *buf, int len, int space)
+static int uhci_show_qh(struct uhci_hcd *uhci,
+ struct uhci_qh *qh, char *buf, int len, int space)
{
char *out = buf;
int i, nurbs;
if (list_empty(&qh->queue)) {
out += sprintf(out, "%*s queue is empty\n", space, "");
+ if (qh == uhci->skel_async_qh)
+ out += uhci_show_td(uhci->term_td, out,
+ len - (out - buf), 0);
} else {
struct urb_priv *urbp = list_entry(qh->queue.next,
struct urb_priv, node);
struct list_head *tmp, *head;
int nframes, nerrs;
__le32 link;
+ __le32 fsbr_link;
static const char * const qh_names[] = {
"unlink", "iso", "int128", "int64", "int32", "int16",
out += sprintf(out, "Skeleton QHs\n");
+ fsbr_link = 0;
for (i = 0; i < UHCI_NUM_SKELQH; ++i) {
int cnt = 0;
- __le32 fsbr_link = 0;
qh = uhci->skelqh[i];
out += sprintf(out, "- skel_%s_qh\n", qh_names[i]); \
- out += uhci_show_qh(qh, out, len - (out - buf), 4);
+ out += uhci_show_qh(uhci, qh, out, len - (out - buf), 4);
/* Last QH is the Terminating QH, it's different */
if (i == SKEL_TERM) {
if (qh_element(qh) != LINK_TO_TD(uhci->term_td))
out += sprintf(out, " skel_term_qh element is not set to term_td!\n");
- if (link == LINK_TO_QH(uhci->skel_term_qh))
- goto check_qh_link;
- continue;
+ link = fsbr_link;
+ if (!link)
+ link = LINK_TO_QH(uhci->skel_term_qh);
+ goto check_qh_link;
}
head = &qh->node;
qh = list_entry(tmp, struct uhci_qh, node);
tmp = tmp->next;
if (++cnt <= 10)
- out += uhci_show_qh(qh, out,
+ out += uhci_show_qh(uhci, qh, out,
len - (out - buf), 4);
if (!fsbr_link && qh->skel >= SKEL_FSBR)
fsbr_link = LINK_TO_QH(qh);
link = LINK_TO_QH(uhci->skel_async_qh);
else if (!uhci->fsbr_is_on)
;
- else if (fsbr_link)
- link = fsbr_link;
else
link = LINK_TO_QH(uhci->skel_term_qh);
check_qh_link:
static inline void lprintk(char *buf)
{}
-static inline int uhci_show_qh(struct uhci_qh *qh, char *buf,
- int len, int space)
+static inline int uhci_show_qh(struct uhci_hcd *uhci,
+ struct uhci_qh *qh, char *buf, int len, int space)
{
return 0;
}
*/
for (i = SKEL_ISO + 1; i < SKEL_ASYNC; ++i)
uhci->skelqh[i]->link = LINK_TO_QH(uhci->skel_async_qh);
- uhci->skel_async_qh->link = uhci->skel_term_qh->link = UHCI_PTR_TERM;
+ uhci->skel_async_qh->link = UHCI_PTR_TERM;
+ uhci->skel_term_qh->link = LINK_TO_QH(uhci->skel_term_qh);
/* This dummy TD is to work around a bug in Intel PIIX controllers */
uhci_fill_td(uhci->term_td, 0, uhci_explen(0) |
*/
static void uhci_fsbr_on(struct uhci_hcd *uhci)
{
- struct uhci_qh *fsbr_qh, *lqh, *tqh;
+ struct uhci_qh *lqh;
+ /* The terminating skeleton QH always points back to the first
+ * FSBR QH. Make the last async QH point to the terminating
+ * skeleton QH. */
uhci->fsbr_is_on = 1;
lqh = list_entry(uhci->skel_async_qh->node.prev,
struct uhci_qh, node);
-
- /* Find the first FSBR QH. Linear search through the list is
- * acceptable because normally FSBR gets turned on as soon as
- * one QH needs it. */
- fsbr_qh = NULL;
- list_for_each_entry_reverse(tqh, &uhci->skel_async_qh->node, node) {
- if (tqh->skel < SKEL_FSBR)
- break;
- fsbr_qh = tqh;
- }
-
- /* No FSBR QH means we must insert the terminating skeleton QH */
- if (!fsbr_qh) {
- uhci->skel_term_qh->link = LINK_TO_QH(uhci->skel_term_qh);
- wmb();
- lqh->link = uhci->skel_term_qh->link;
-
- /* Otherwise loop the last QH to the first FSBR QH */
- } else
- lqh->link = LINK_TO_QH(fsbr_qh);
+ lqh->link = LINK_TO_QH(uhci->skel_term_qh);
}
static void uhci_fsbr_off(struct uhci_hcd *uhci)
{
struct uhci_qh *lqh;
+ /* Remove the link from the last async QH to the terminating
+ * skeleton QH. */
uhci->fsbr_is_on = 0;
lqh = list_entry(uhci->skel_async_qh->node.prev,
struct uhci_qh, node);
-
- /* End the async list normally and unlink the terminating QH */
- lqh->link = uhci->skel_term_qh->link = UHCI_PTR_TERM;
+ lqh->link = UHCI_PTR_TERM;
}
static void uhci_add_fsbr(struct uhci_hcd *uhci, struct urb *urb)
*/
static void link_async(struct uhci_hcd *uhci, struct uhci_qh *qh)
{
- struct uhci_qh *pqh, *lqh;
+ struct uhci_qh *pqh;
__le32 link_to_new_qh;
- __le32 *extra_link = &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
break;
}
list_add(&qh->node, &pqh->node);
- qh->link = pqh->link;
-
- link_to_new_qh = LINK_TO_QH(qh);
-
- /* If this is now the first FSBR QH, take special action */
- if (uhci->fsbr_is_on && pqh->skel < SKEL_FSBR &&
- qh->skel >= SKEL_FSBR) {
- lqh = list_entry(uhci->skel_async_qh->node.prev,
- struct uhci_qh, node);
-
- /* If the new QH is also the last one, we must unlink
- * the terminating skeleton QH and make the new QH point
- * back to itself. */
- if (qh == lqh) {
- qh->link = link_to_new_qh;
- extra_link = &uhci->skel_term_qh->link;
-
- /* Otherwise the last QH must point to the new QH */
- } else
- extra_link = &lqh->link;
- }
/* Link it into the schedule */
+ qh->link = pqh->link;
wmb();
- *extra_link = pqh->link = link_to_new_qh;
+ link_to_new_qh = LINK_TO_QH(qh);
+ pqh->link = link_to_new_qh;
+
+ /* If this is now the first FSBR QH, link the terminating skeleton
+ * QH to it. */
+ if (pqh->skel < SKEL_FSBR && qh->skel >= SKEL_FSBR)
+ uhci->skel_term_qh->link = link_to_new_qh;
}
/*
*/
static void unlink_async(struct uhci_hcd *uhci, struct uhci_qh *qh)
{
- struct uhci_qh *pqh, *lqh;
+ struct uhci_qh *pqh;
__le32 link_to_next_qh = qh->link;
pqh = list_entry(qh->node.prev, struct uhci_qh, node);
-
- /* If this is the first FSBQ QH, take special action */
- if (uhci->fsbr_is_on && pqh->skel < SKEL_FSBR &&
- qh->skel >= SKEL_FSBR) {
- lqh = list_entry(uhci->skel_async_qh->node.prev,
- struct uhci_qh, node);
-
- /* If this QH is also the last one, we must link in
- * the terminating skeleton QH. */
- if (qh == lqh) {
- link_to_next_qh = LINK_TO_QH(uhci->skel_term_qh);
- uhci->skel_term_qh->link = link_to_next_qh;
- wmb();
- qh->link = link_to_next_qh;
-
- /* Otherwise the last QH must point to the new first FSBR QH */
- } else
- lqh->link = link_to_next_qh;
- }
-
pqh->link = link_to_next_qh;
+
+ /* If this was the old first FSBR QH, link the terminating skeleton
+ * QH to the next (new first FSBR) QH. */
+ if (pqh->skel < SKEL_FSBR && qh->skel >= SKEL_FSBR)
+ uhci->skel_term_qh->link = link_to_next_qh;
mb();
}
if (debug > 1 && errbuf) {
/* Print the chain for debugging */
- uhci_show_qh(urbp->qh, errbuf,
+ uhci_show_qh(uhci, urbp->qh, errbuf,
ERRBUF_LEN, 0);
lprintk(errbuf);
}
static struct usb_device_id id_table [] = {
{ USB_DEVICE(0x0c88, 0x17da) }, /* Kyocera Wireless KPC650/Passport */
- { USB_DEVICE(0x1410, 0x1100) }, /* ExpressCard34 Qualcomm 3G CDMA */
{ USB_DEVICE(0x413c, 0x8115) }, /* Dell Wireless HSDPA 5500 */
{ },
};
break;
case FT232BM: /* FT232BM chip */
case FT2232C: /* FT2232C chip */
+ case FT232RL:
if (baud <= 3000000) {
div_value = ftdi_232bm_baud_to_divisor(baud);
} else {
/* (It might be a BM because of the iSerialNumber bug,
* but it will still work as an AM device.) */
priv->chip_type = FT8U232AM;
- } else {
+ } else if (version < 0x600) {
/* Assume its an FT232BM (or FT245BM) */
priv->chip_type = FT232BM;
+ } else {
+ /* Assume its an FT232R */
+ priv->chip_type = FT232RL;
}
info("Detected %s", ftdi_chip_name[priv->chip_type]);
}
#include <linux/usb/serial.h>
#include <asm/uaccess.h>
-static int generic_probe(struct usb_interface *interface,
- const struct usb_device_id *id);
-
static int debug;
#ifdef CONFIG_USB_SERIAL_GENERIC
+
+static int generic_probe(struct usb_interface *interface,
+ const struct usb_device_id *id);
+
static __u16 vendor = 0x05f9;
static __u16 product = 0xffff;
projects / powerpc.git / commitdiff