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-rw-r--r--drivers/usb/core/config.c48
-rw-r--r--drivers/usb/host/ehci-orion.c2
-rw-r--r--drivers/usb/host/ohci-omap.c1
-rw-r--r--drivers/usb/host/xhci-dbg.c199
-rw-r--r--drivers/usb/host/xhci-hcd.c290
-rw-r--r--drivers/usb/host/xhci-mem.c300
-rw-r--r--drivers/usb/host/xhci-pci.c1
-rw-r--r--drivers/usb/host/xhci-ring.c305
-rw-r--r--drivers/usb/host/xhci.h148
-rw-r--r--drivers/usb/misc/Kconfig2
-rw-r--r--drivers/usb/musb/musb_core.c3
-rw-r--r--drivers/usb/musb/musb_gadget_ep0.c2
-rw-r--r--drivers/usb/musb/musb_regs.h1
-rw-r--r--drivers/usb/serial/cp210x.c3
-rw-r--r--drivers/usb/serial/ftdi_sio.c1
-rw-r--r--drivers/usb/serial/ftdi_sio.h7
-rw-r--r--drivers/usb/serial/mos7840.c9
-rw-r--r--drivers/usb/serial/option.c133
-rw-r--r--drivers/usb/storage/transport.c2
19 files changed, 1012 insertions, 445 deletions
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index 24dfb33f90c..a16c538d013 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -80,38 +80,18 @@ static int usb_parse_ss_endpoint_companion(struct device *ddev, int cfgno,
int max_tx;
int i;
- /* Allocate space for the SS endpoint companion descriptor */
- ep->ss_ep_comp = kzalloc(sizeof(struct usb_host_ss_ep_comp),
- GFP_KERNEL);
- if (!ep->ss_ep_comp)
- return -ENOMEM;
desc = (struct usb_ss_ep_comp_descriptor *) buffer;
if (desc->bDescriptorType != USB_DT_SS_ENDPOINT_COMP) {
dev_warn(ddev, "No SuperSpeed endpoint companion for config %d "
" interface %d altsetting %d ep %d: "
"using minimum values\n",
cfgno, inum, asnum, ep->desc.bEndpointAddress);
- ep->ss_ep_comp->desc.bLength = USB_DT_SS_EP_COMP_SIZE;
- ep->ss_ep_comp->desc.bDescriptorType = USB_DT_SS_ENDPOINT_COMP;
- ep->ss_ep_comp->desc.bMaxBurst = 0;
- /*
- * Leave bmAttributes as zero, which will mean no streams for
- * bulk, and isoc won't support multiple bursts of packets.
- * With bursts of only one packet, and a Mult of 1, the max
- * amount of data moved per endpoint service interval is one
- * packet.
- */
- if (usb_endpoint_xfer_isoc(&ep->desc) ||
- usb_endpoint_xfer_int(&ep->desc))
- ep->ss_ep_comp->desc.wBytesPerInterval =
- ep->desc.wMaxPacketSize;
/*
* The next descriptor is for an Endpoint or Interface,
* no extra descriptors to copy into the companion structure,
* and we didn't eat up any of the buffer.
*/
- retval = 0;
- goto valid;
+ return 0;
}
memcpy(&ep->ss_ep_comp->desc, desc, USB_DT_SS_EP_COMP_SIZE);
desc = &ep->ss_ep_comp->desc;
@@ -320,6 +300,28 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
buffer += i;
size -= i;
+ /* Allocate space for the SS endpoint companion descriptor */
+ endpoint->ss_ep_comp = kzalloc(sizeof(struct usb_host_ss_ep_comp),
+ GFP_KERNEL);
+ if (!endpoint->ss_ep_comp)
+ return -ENOMEM;
+
+ /* Fill in some default values (may be overwritten later) */
+ endpoint->ss_ep_comp->desc.bLength = USB_DT_SS_EP_COMP_SIZE;
+ endpoint->ss_ep_comp->desc.bDescriptorType = USB_DT_SS_ENDPOINT_COMP;
+ endpoint->ss_ep_comp->desc.bMaxBurst = 0;
+ /*
+ * Leave bmAttributes as zero, which will mean no streams for
+ * bulk, and isoc won't support multiple bursts of packets.
+ * With bursts of only one packet, and a Mult of 1, the max
+ * amount of data moved per endpoint service interval is one
+ * packet.
+ */
+ if (usb_endpoint_xfer_isoc(&endpoint->desc) ||
+ usb_endpoint_xfer_int(&endpoint->desc))
+ endpoint->ss_ep_comp->desc.wBytesPerInterval =
+ endpoint->desc.wMaxPacketSize;
+
if (size > 0) {
retval = usb_parse_ss_endpoint_companion(ddev, cfgno,
inum, asnum, endpoint, num_ep, buffer,
@@ -329,6 +331,10 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
retval = buffer - buffer0;
}
} else {
+ dev_warn(ddev, "config %d interface %d altsetting %d "
+ "endpoint 0x%X has no "
+ "SuperSpeed companion descriptor\n",
+ cfgno, inum, asnum, d->bEndpointAddress);
retval = buffer - buffer0;
}
} else {
diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c
index dc2ac613a9d..1d283e1b2b8 100644
--- a/drivers/usb/host/ehci-orion.c
+++ b/drivers/usb/host/ehci-orion.c
@@ -105,6 +105,7 @@ static int ehci_orion_setup(struct usb_hcd *hcd)
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
int retval;
+ ehci_reset(ehci);
retval = ehci_halt(ehci);
if (retval)
return retval;
@@ -118,7 +119,6 @@ static int ehci_orion_setup(struct usb_hcd *hcd)
hcd->has_tt = 1;
- ehci_reset(ehci);
ehci_port_power(ehci, 0);
return retval;
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index f3aaba35e91..83cbecd2a1e 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -282,6 +282,7 @@ static int ohci_omap_init(struct usb_hcd *hcd)
static void ohci_omap_stop(struct usb_hcd *hcd)
{
dev_dbg(hcd->self.controller, "stopping USB Controller\n");
+ ohci_stop(hcd);
omap_ohci_clock_power(0);
}
diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c
index 2501c571f85..705e3432415 100644
--- a/drivers/usb/host/xhci-dbg.c
+++ b/drivers/usb/host/xhci-dbg.c
@@ -173,6 +173,7 @@ void xhci_print_ir_set(struct xhci_hcd *xhci, struct xhci_intr_reg *ir_set, int
{
void *addr;
u32 temp;
+ u64 temp_64;
addr = &ir_set->irq_pending;
temp = xhci_readl(xhci, addr);
@@ -200,25 +201,15 @@ void xhci_print_ir_set(struct xhci_hcd *xhci, struct xhci_intr_reg *ir_set, int
xhci_dbg(xhci, " WARN: %p: ir_set.rsvd = 0x%x\n",
addr, (unsigned int)temp);
- addr = &ir_set->erst_base[0];
- temp = xhci_readl(xhci, addr);
- xhci_dbg(xhci, " %p: ir_set.erst_base[0] = 0x%x\n",
- addr, (unsigned int) temp);
-
- addr = &ir_set->erst_base[1];
- temp = xhci_readl(xhci, addr);
- xhci_dbg(xhci, " %p: ir_set.erst_base[1] = 0x%x\n",
- addr, (unsigned int) temp);
+ addr = &ir_set->erst_base;
+ temp_64 = xhci_read_64(xhci, addr);
+ xhci_dbg(xhci, " %p: ir_set.erst_base = @%08llx\n",
+ addr, temp_64);
- addr = &ir_set->erst_dequeue[0];
- temp = xhci_readl(xhci, addr);
- xhci_dbg(xhci, " %p: ir_set.erst_dequeue[0] = 0x%x\n",
- addr, (unsigned int) temp);
-
- addr = &ir_set->erst_dequeue[1];
- temp = xhci_readl(xhci, addr);
- xhci_dbg(xhci, " %p: ir_set.erst_dequeue[1] = 0x%x\n",
- addr, (unsigned int) temp);
+ addr = &ir_set->erst_dequeue;
+ temp_64 = xhci_read_64(xhci, addr);
+ xhci_dbg(xhci, " %p: ir_set.erst_dequeue = @%08llx\n",
+ addr, temp_64);
}
void xhci_print_run_regs(struct xhci_hcd *xhci)
@@ -268,8 +259,7 @@ void xhci_debug_trb(struct xhci_hcd *xhci, union xhci_trb *trb)
xhci_dbg(xhci, "Link TRB:\n");
xhci_print_trb_offsets(xhci, trb);
- address = trb->link.segment_ptr[0] +
- (((u64) trb->link.segment_ptr[1]) << 32);
+ address = trb->link.segment_ptr;
xhci_dbg(xhci, "Next ring segment DMA address = 0x%llx\n", address);
xhci_dbg(xhci, "Interrupter target = 0x%x\n",
@@ -282,8 +272,7 @@ void xhci_debug_trb(struct xhci_hcd *xhci, union xhci_trb *trb)
(unsigned int) (trb->link.control & TRB_NO_SNOOP));
break;
case TRB_TYPE(TRB_TRANSFER):
- address = trb->trans_event.buffer[0] +
- (((u64) trb->trans_event.buffer[1]) << 32);
+ address = trb->trans_event.buffer;
/*
* FIXME: look at flags to figure out if it's an address or if
* the data is directly in the buffer field.
@@ -291,8 +280,7 @@ void xhci_debug_trb(struct xhci_hcd *xhci, union xhci_trb *trb)
xhci_dbg(xhci, "DMA address or buffer contents= %llu\n", address);
break;
case TRB_TYPE(TRB_COMPLETION):
- address = trb->event_cmd.cmd_trb[0] +
- (((u64) trb->event_cmd.cmd_trb[1]) << 32);
+ address = trb->event_cmd.cmd_trb;
xhci_dbg(xhci, "Command TRB pointer = %llu\n", address);
xhci_dbg(xhci, "Completion status = %u\n",
(unsigned int) GET_COMP_CODE(trb->event_cmd.status));
@@ -328,8 +316,8 @@ void xhci_debug_segment(struct xhci_hcd *xhci, struct xhci_segment *seg)
for (i = 0; i < TRBS_PER_SEGMENT; ++i) {
trb = &seg->trbs[i];
xhci_dbg(xhci, "@%08x %08x %08x %08x %08x\n", addr,
- (unsigned int) trb->link.segment_ptr[0],
- (unsigned int) trb->link.segment_ptr[1],
+ lower_32_bits(trb->link.segment_ptr),
+ upper_32_bits(trb->link.segment_ptr),
(unsigned int) trb->link.intr_target,
(unsigned int) trb->link.control);
addr += sizeof(*trb);
@@ -386,8 +374,8 @@ void xhci_dbg_erst(struct xhci_hcd *xhci, struct xhci_erst *erst)
entry = &erst->entries[i];
xhci_dbg(xhci, "@%08x %08x %08x %08x %08x\n",
(unsigned int) addr,
- (unsigned int) entry->seg_addr[0],
- (unsigned int) entry->seg_addr[1],
+ lower_32_bits(entry->seg_addr),
+ upper_32_bits(entry->seg_addr),
(unsigned int) entry->seg_size,
(unsigned int) entry->rsvd);
addr += sizeof(*entry);
@@ -396,90 +384,147 @@ void xhci_dbg_erst(struct xhci_hcd *xhci, struct xhci_erst *erst)
void xhci_dbg_cmd_ptrs(struct xhci_hcd *xhci)
{
- u32 val;
+ u64 val;
- val = xhci_readl(xhci, &xhci->op_regs->cmd_ring[0]);
- xhci_dbg(xhci, "// xHC command ring deq ptr low bits + flags = 0x%x\n", val);
- val = xhci_readl(xhci, &xhci->op_regs->cmd_ring[1]);
- xhci_dbg(xhci, "// xHC command ring deq ptr high bits = 0x%x\n", val);
+ val = xhci_read_64(xhci, &xhci->op_regs->cmd_ring);
+ xhci_dbg(xhci, "// xHC command ring deq ptr low bits + flags = @%08x\n",
+ lower_32_bits(val));
+ xhci_dbg(xhci, "// xHC command ring deq ptr high bits = @%08x\n",
+ upper_32_bits(val));
}
-void xhci_dbg_ctx(struct xhci_hcd *xhci, struct xhci_device_control *ctx, dma_addr_t dma, unsigned int last_ep)
+/* Print the last 32 bytes for 64-byte contexts */
+static void dbg_rsvd64(struct xhci_hcd *xhci, u64 *ctx, dma_addr_t dma)
+{
+ int i;
+ for (i = 0; i < 4; ++i) {
+ xhci_dbg(xhci, "@%p (virt) @%08llx "
+ "(dma) %#08llx - rsvd64[%d]\n",
+ &ctx[4 + i], (unsigned long long)dma,
+ ctx[4 + i], i);
+ dma += 8;
+ }
+}
+
+void xhci_dbg_slot_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx)
{
- int i, j;
- int last_ep_ctx = 31;
/* Fields are 32 bits wide, DMA addresses are in bytes */
int field_size = 32 / 8;
+ int i;
- xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - drop flags\n",
- &ctx->drop_flags, (unsigned long long)dma,
- ctx->drop_flags);
- dma += field_size;
- xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - add flags\n",
- &ctx->add_flags, (unsigned long long)dma,
- ctx->add_flags);
- dma += field_size;
- for (i = 0; i > 6; ++i) {
- xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - rsvd[%d]\n",
- &ctx->rsvd[i], (unsigned long long)dma,
- ctx->rsvd[i], i);
- dma += field_size;
- }
+ struct xhci_slot_ctx *slot_ctx = xhci_get_slot_ctx(xhci, ctx);
+ dma_addr_t dma = ctx->dma + ((unsigned long)slot_ctx - (unsigned long)ctx);
+ int csz = HCC_64BYTE_CONTEXT(xhci->hcc_params);
xhci_dbg(xhci, "Slot Context:\n");
xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - dev_info\n",
- &ctx->slot.dev_info,
- (unsigned long long)dma, ctx->slot.dev_info);
+ &slot_ctx->dev_info,
+ (unsigned long long)dma, slot_ctx->dev_info);
dma += field_size;
xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - dev_info2\n",
- &ctx->slot.dev_info2,
- (unsigned long long)dma, ctx->slot.dev_info2);
+ &slot_ctx->dev_info2,
+ (unsigned long long)dma, slot_ctx->dev_info2);
dma += field_size;
xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - tt_info\n",
- &ctx->slot.tt_info,
- (unsigned long long)dma, ctx->slot.tt_info);
+ &slot_ctx->tt_info,
+ (unsigned long long)dma, slot_ctx->tt_info);
dma += field_size;
xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - dev_state\n",
- &ctx->slot.dev_state,
- (unsigned long long)dma, ctx->slot.dev_state);
+ &slot_ctx->dev_state,
+ (unsigned long long)dma, slot_ctx->dev_state);
dma += field_size;
- for (i = 0; i > 4; ++i) {
+ for (i = 0; i < 4; ++i) {
xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - rsvd[%d]\n",
- &ctx->slot.reserved[i], (unsigned long long)dma,
- ctx->slot.reserved[i], i);
+ &slot_ctx->reserved[i], (unsigned long long)dma,
+ slot_ctx->reserved[i], i);
dma += field_size;
}
+ if (csz)
+ dbg_rsvd64(xhci, (u64 *)slot_ctx, dma);
+}
+
+void xhci_dbg_ep_ctx(struct xhci_hcd *xhci,
+ struct xhci_container_ctx *ctx,
+ unsigned int last_ep)
+{
+ int i, j;
+ int last_ep_ctx = 31;
+ /* Fields are 32 bits wide, DMA addresses are in bytes */
+ int field_size = 32 / 8;
+ int csz = HCC_64BYTE_CONTEXT(xhci->hcc_params);
+
if (last_ep < 31)
last_ep_ctx = last_ep + 1;
for (i = 0; i < last_ep_ctx; ++i) {
+ struct xhci_ep_ctx *ep_ctx = xhci_get_ep_ctx(xhci, ctx, i);
+ dma_addr_t dma = ctx->dma +
+ ((unsigned long)ep_ctx - (unsigned long)ctx);
+
xhci_dbg(xhci, "Endpoint %02d Context:\n", i);
xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - ep_info\n",
- &ctx->ep[i].ep_info,
- (unsigned long long)dma, ctx->ep[i].ep_info);
+ &ep_ctx->ep_info,
+ (unsigned long long)dma, ep_ctx->ep_info);
dma += field_size;
xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - ep_info2\n",
- &ctx->ep[i].ep_info2,
- (unsigned long long)dma, ctx->ep[i].ep_info2);
- dma += field_size;
- xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - deq[0]\n",
- &ctx->ep[i].deq[0],
- (unsigned long long)dma, ctx->ep[i].deq[0]);
- dma += field_size;
- xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - deq[1]\n",
- &ctx->ep[i].deq[1],
- (unsigned long long)dma, ctx->ep[i].deq[1]);
+ &ep_ctx->ep_info2,
+ (unsigned long long)dma, ep_ctx->ep_info2);
dma += field_size;
+ xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08llx - deq\n",
+ &ep_ctx->deq,
+ (unsigned long long)dma, ep_ctx->deq);
+ dma += 2*field_size;
xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - tx_info\n",
- &ctx->ep[i].tx_info,
- (unsigned long long)dma, ctx->ep[i].tx_info);
+ &ep_ctx->tx_info,
+ (unsigned long long)dma, ep_ctx->tx_info);
dma += field_size;
for (j = 0; j < 3; ++j) {
xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - rsvd[%d]\n",
- &ctx->ep[i].reserved[j],
+ &ep_ctx->reserved[j],
(unsigned long long)dma,
- ctx->ep[i].reserved[j], j);
+ ep_ctx->reserved[j], j);
+ dma += field_size;
+ }
+
+ if (csz)
+ dbg_rsvd64(xhci, (u64 *)ep_ctx, dma);
+ }
+}
+
+void xhci_dbg_ctx(struct xhci_hcd *xhci,
+ struct xhci_container_ctx *ctx,
+ unsigned int last_ep)
+{
+ int i;
+ /* Fields are 32 bits wide, DMA addresses are in bytes */
+ int field_size = 32 / 8;
+ struct xhci_slot_ctx *slot_ctx;
+ dma_addr_t dma = ctx->dma;
+ int csz = HCC_64BYTE_CONTEXT(xhci->hcc_params);
+
+ if (ctx->type == XHCI_CTX_TYPE_INPUT) {
+ struct xhci_input_control_ctx *ctrl_ctx =
+ xhci_get_input_control_ctx(xhci, ctx);
+ xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - drop flags\n",
+ &ctrl_ctx->drop_flags, (unsigned long long)dma,
+ ctrl_ctx->drop_flags);
+ dma += field_size;
+ xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - add flags\n",
+ &ctrl_ctx->add_flags, (unsigned long long)dma,
+ ctrl_ctx->add_flags);
+ dma += field_size;
+ for (i = 0; i < 6; ++i) {
+ xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - rsvd2[%d]\n",
+ &ctrl_ctx->rsvd2[i], (unsigned long long)dma,
+ ctrl_ctx->rsvd2[i], i);
dma += field_size;
}
+
+ if (csz)
+ dbg_rsvd64(xhci, (u64 *)ctrl_ctx, dma);
}
+
+ slot_ctx = xhci_get_slot_ctx(xhci, ctx);
+ xhci_dbg_slot_ctx(xhci, ctx);
+ xhci_dbg_ep_ctx(xhci, ctx, last_ep);
}
diff --git a/drivers/usb/host/xhci-hcd.c b/drivers/usb/host/xhci-hcd.c
index dba3e07ccd0..816c39caca1 100644
--- a/drivers/usb/host/xhci-hcd.c
+++ b/drivers/usb/host/xhci-hcd.c
@@ -103,7 +103,10 @@ int xhci_reset(struct xhci_hcd *xhci)
u32 state;
state = xhci_readl(xhci, &xhci->op_regs->status);
- BUG_ON((state & STS_HALT) == 0);
+ if ((state & STS_HALT) == 0) {
+ xhci_warn(xhci, "Host controller not halted, aborting reset.\n");
+ return 0;
+ }
xhci_dbg(xhci, "// Reset the HC\n");
command = xhci_readl(xhci, &xhci->op_regs->command);
@@ -226,6 +229,7 @@ int xhci_init(struct usb_hcd *hcd)
static void xhci_work(struct xhci_hcd *xhci)
{
u32 temp;
+ u64 temp_64;
/*
* Clear the op reg interrupt status first,
@@ -248,9 +252,9 @@ static void xhci_work(struct xhci_hcd *xhci)
/* FIXME this should be a delayed service routine that clears the EHB */
xhci_handle_event(xhci);
- /* Clear the event handler busy flag; the event ring should be empty. */
- temp = xhci_readl(xhci, &xhci->ir_set->erst_dequeue[0]);
- xhci_writel(xhci, temp & ~ERST_EHB, &xhci->ir_set->erst_dequeue[0]);
+ /* Clear the event handler busy flag (RW1C); the event ring should be empty. */
+ temp_64 = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue);
+ xhci_write_64(xhci, temp_64 | ERST_EHB, &xhci->ir_set->erst_dequeue);
/* Flush posted writes -- FIXME is this necessary? */
xhci_readl(xhci, &xhci->ir_set->irq_pending);
}
@@ -266,19 +270,34 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd)
{
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
u32 temp, temp2;
+ union xhci_trb *trb;
spin_lock(&xhci->lock);
+ trb = xhci->event_ring->dequeue;
/* Check if the xHC generated the interrupt, or the irq is shared */
temp = xhci_readl(xhci, &xhci->op_regs->status);
temp2 = xhci_readl(xhci, &xhci->ir_set->irq_pending);
+ if (temp == 0xffffffff && temp2 == 0xffffffff)
+ goto hw_died;
+
if (!(temp & STS_EINT) && !ER_IRQ_PENDING(temp2)) {
spin_unlock(&xhci->lock);
return IRQ_NONE;
}
+ xhci_dbg(xhci, "op reg status = %08x\n", temp);
+ xhci_dbg(xhci, "ir set irq_pending = %08x\n", temp2);
+ xhci_dbg(xhci, "Event ring dequeue ptr:\n");
+ xhci_dbg(xhci, "@%llx %08x %08x %08x %08x\n",
+ (unsigned long long)xhci_trb_virt_to_dma(xhci->event_ring->deq_seg, trb),
+ lower_32_bits(trb->link.segment_ptr),
+ upper_32_bits(trb->link.segment_ptr),
+ (unsigned int) trb->link.intr_target,
+ (unsigned int) trb->link.control);
if (temp & STS_FATAL) {
xhci_warn(xhci, "WARNING: Host System Error\n");
xhci_halt(xhci);
+hw_died:
xhci_to_hcd(xhci)->state = HC_STATE_HALT;
spin_unlock(&xhci->lock);
return -ESHUTDOWN;
@@ -295,6 +314,7 @@ void xhci_event_ring_work(unsigned long arg)
{
unsigned long flags;
int temp;
+ u64 temp_64;
struct xhci_hcd *xhci = (struct xhci_hcd *) arg;
int i, j;
@@ -311,9 +331,9 @@ void xhci_event_ring_work(unsigned long arg)
xhci_dbg(xhci, "Event ring:\n");
xhci_debug_segment(xhci, xhci->event_ring->deq_seg);
xhci_dbg_ring_ptrs(xhci, xhci->event_ring);
- temp = xhci_readl(xhci, &xhci->ir_set->erst_dequeue[0]);
- temp &= ERST_PTR_MASK;
- xhci_dbg(xhci, "ERST deq = 0x%x\n", temp);
+ temp_64 = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue);
+ temp_64 &= ~ERST_PTR_MASK;
+ xhci_dbg(xhci, "ERST deq = 64'h%0lx\n", (long unsigned int) temp_64);
xhci_dbg(xhci, "Command ring:\n");
xhci_debug_segment(xhci, xhci->cmd_ring->deq_seg);
xhci_dbg_ring_ptrs(xhci, xhci->cmd_ring);
@@ -356,6 +376,7 @@ void xhci_event_ring_work(unsigned long arg)
int xhci_run(struct usb_hcd *hcd)
{
u32 temp;
+ u64 temp_64;
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
void (*doorbell)(struct xhci_hcd *) = NULL;
@@ -382,6 +403,20 @@ int xhci_run(struct usb_hcd *hcd)
add_timer(&xhci->event_ring_timer);
#endif
+ xhci_dbg(xhci, "Command ring memory map follows:\n");
+ xhci_debug_ring(xhci, xhci->cmd_ring);
+ xhci_dbg_ring_ptrs(xhci, xhci->cmd_ring);
+ xhci_dbg_cmd_ptrs(xhci);
+
+ xhci_dbg(xhci, "ERST memory map follows:\n");
+ xhci_dbg_erst(xhci, &xhci->erst);
+ xhci_dbg(xhci, "Event ring:\n");
+ xhci_debug_ring(xhci, xhci->event_ring);
+ xhci_dbg_ring_ptrs(xhci, xhci->event_ring);
+ temp_64 = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue);
+ temp_64 &= ~ERST_PTR_MASK;
+ xhci_dbg(xhci, "ERST deq = 64'h%0lx\n", (long unsigned int) temp_64);
+
xhci_dbg(xhci, "// Set the interrupt modulation register\n");
temp = xhci_readl(xhci, &xhci->ir_set->irq_control);
temp &= ~ER_IRQ_INTERVAL_MASK;
@@ -406,22 +441,6 @@ int xhci_run(struct usb_hcd *hcd)
if (NUM_TEST_NOOPS > 0)
doorbell = xhci_setup_one_noop(xhci);
- xhci_dbg(xhci, "Command ring memory map follows:\n");
- xhci_debug_ring(xhci, xhci->cmd_ring);
- xhci_dbg_ring_ptrs(xhci, xhci->cmd_ring);
- xhci_dbg_cmd_ptrs(xhci);
-
- xhci_dbg(xhci, "ERST memory map follows:\n");
- xhci_dbg_erst(xhci, &xhci->erst);
- xhci_dbg(xhci, "Event ring:\n");
- xhci_debug_ring(xhci, xhci->event_ring);
- xhci_dbg_ring_ptrs(xhci, xhci->event_ring);
- temp = xhci_readl(xhci, &xhci->ir_set->erst_dequeue[0]);
- temp &= ERST_PTR_MASK;
- xhci_dbg(xhci, "ERST deq = 0x%x\n", temp);
- temp = xhci_readl(xhci, &xhci->ir_set->erst_dequeue[1]);
- xhci_dbg(xhci, "ERST deq upper = 0x%x\n", temp);
-
temp = xhci_readl(xhci, &xhci->op_regs->command);
temp |= (CMD_RUN);
xhci_dbg(xhci, "// Turn on HC, cmd = 0x%x.\n",
@@ -601,10 +620,13 @@ int xhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags)
goto exit;
}
if (usb_endpoint_xfer_control(&urb->ep->desc))
- ret = xhci_queue_ctrl_tx(xhci, mem_flags, urb,
+ /* We have a spinlock and interrupts disabled, so we must pass
+ * atomic context to this function, which may allocate memory.
+ */
+ ret = xhci_queue_ctrl_tx(xhci, GFP_ATOMIC, urb,
slot_id, ep_index);
else if (usb_endpoint_xfer_bulk(&urb->ep->desc))
- ret = xhci_queue_bulk_tx(xhci, mem_flags, urb,
+ ret = xhci_queue_bulk_tx(xhci, GFP_ATOMIC, urb,
slot_id, ep_index);
else
ret = -EINVAL;
@@ -661,8 +683,12 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
goto done;
xhci_dbg(xhci, "Cancel URB %p\n", urb);
+ xhci_dbg(xhci, "Event ring:\n");
+ xhci_debug_ring(xhci, xhci->event_ring);
ep_index = xhci_get_endpoint_index(&urb->ep->desc);
ep_ring = xhci->devs[urb->dev->slot_id]->ep_rings[ep_index];
+ xhci_dbg(xhci, "Endpoint ring:\n");
+ xhci_debug_ring(xhci, ep_ring);
td = (struct xhci_td *) urb->hcpriv;
ep_ring->cancels_pending++;
@@ -696,7 +722,9 @@ int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
struct usb_host_endpoint *ep)
{
struct xhci_hcd *xhci;
- struct xhci_device_control *in_ctx;
+ struct xhci_container_ctx *in_ctx, *out_ctx;
+ struct xhci_input_control_ctx *ctrl_ctx;
+ struct xhci_slot_ctx *slot_ctx;
unsigned int last_ctx;
unsigned int ep_index;
struct xhci_ep_ctx *ep_ctx;
@@ -724,31 +752,34 @@ int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
}
in_ctx = xhci->devs[udev->slot_id]->in_ctx;
+ out_ctx = xhci->devs[udev->slot_id]->out_ctx;
+ ctrl_ctx = xhci_get_input_control_ctx(xhci, in_ctx);
ep_index = xhci_get_endpoint_index(&ep->desc);
- ep_ctx = &xhci->devs[udev->slot_id]->out_ctx->ep[ep_index];
+ ep_ctx = xhci_get_ep_ctx(xhci, out_ctx, ep_index);
/* If the HC already knows the endpoint is disabled,
* or the HCD has noted it is disabled, ignore this request
*/
if ((ep_ctx->ep_info & EP_STATE_MASK) == EP_STATE_DISABLED ||
- in_ctx->drop_flags & xhci_get_endpoint_flag(&ep->desc)) {
+ ctrl_ctx->drop_flags & xhci_get_endpoint_flag(&ep->desc)) {
xhci_warn(xhci, "xHCI %s called with disabled ep %p\n",
__func__, ep);
return 0;
}
- in_ctx->drop_flags |= drop_flag;
- new_drop_flags = in_ctx->drop_flags;
+ ctrl_ctx->drop_flags |= drop_flag;
+ new_drop_flags = ctrl_ctx->drop_flags;
- in_ctx->add_flags = ~drop_flag;
- new_add_flags = in_ctx->add_flags;
+ ctrl_ctx->add_flags = ~drop_flag;
+ new_add_flags = ctrl_ctx->add_flags;
- last_ctx = xhci_last_valid_endpoint(in_ctx->add_flags);
+ last_ctx = xhci_last_valid_endpoint(ctrl_ctx->add_flags);
+ slot_ctx = xhci_get_slot_ctx(xhci, in_ctx);
/* Update the last valid endpoint context, if we deleted the last one */
- if ((in_ctx->slot.dev_info & LAST_CTX_MASK) > LAST_CTX(last_ctx)) {
- in_ctx->slot.dev_info &= ~LAST_CTX_MASK;
- in_ctx->slot.dev_info |= LAST_CTX(last_ctx);
+ if ((slot_ctx->dev_info & LAST_CTX_MASK) > LAST_CTX(last_ctx)) {
+ slot_ctx->dev_info &= ~LAST_CTX_MASK;
+ slot_ctx->dev_info |= LAST_CTX(last_ctx);
}
- new_slot_info = in_ctx->slot.dev_info;
+ new_slot_info = slot_ctx->dev_info;
xhci_endpoint_zero(xhci, xhci->devs[udev->slot_id], ep);
@@ -778,17 +809,22 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
struct usb_host_endpoint *ep)
{
struct xhci_hcd *xhci;
- struct xhci_device_control *in_ctx;
+ struct xhci_container_ctx *in_ctx, *out_ctx;
unsigned int ep_index;
struct xhci_ep_ctx *ep_ctx;
+ struct xhci_slot_ctx *slot_ctx;
+ struct xhci_input_control_ctx *ctrl_ctx;
u32 added_ctxs;
unsigned int last_ctx;
u32 new_add_flags, new_drop_flags, new_slot_info;
int ret = 0;
ret = xhci_check_args(hcd, udev, ep, 1, __func__);
- if (ret <= 0)
+ if (ret <= 0) {
+ /* So we won't queue a reset ep command for a root hub */
+ ep->hcpriv = NULL;
return ret;
+ }
xhci = hcd_to_xhci(hcd);
added_ctxs = xhci_get_endpoint_flag(&ep->desc);
@@ -810,12 +846,14 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
}
in_ctx = xhci->devs[udev->slot_id]->in_ctx;
+ out_ctx = xhci->devs[udev->slot_id]->out_ctx;
+ ctrl_ctx = xhci_get_input_control_ctx(xhci, in_ctx);
ep_index = xhci_get_endpoint_index(&ep->desc);
- ep_ctx = &xhci->devs[udev->slot_id]->out_ctx->ep[ep_index];
+ ep_ctx = xhci_get_ep_ctx(xhci, out_ctx, ep_index);
/* If the HCD has already noted the endpoint is enabled,
* ignore this request.
*/
- if (in_ctx->add_flags & xhci_get_endpoint_flag(&ep->desc)) {
+ if (ctrl_ctx->add_flags & xhci_get_endpoint_flag(&ep->desc)) {
xhci_warn(xhci, "xHCI %s called with enabled ep %p\n",
__func__, ep);
return 0;
@@ -833,8 +871,8 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
return -ENOMEM;
}
- in_ctx->add_flags |= added_ctxs;
- new_add_flags = in_ctx->add_flags;
+ ctrl_ctx->add_flags |= added_ctxs;
+ new_add_flags = ctrl_ctx->add_flags;
/* If xhci_endpoint_disable() was called for this endpoint, but the
* xHC hasn't been notified yet through the check_bandwidth() call,
@@ -842,14 +880,18 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
* descriptors. We must drop and re-add this endpoint, so we leave the
* drop flags alone.
*/
- new_drop_flags = in_ctx->drop_flags;
+ new_drop_flags = ctrl_ctx->drop_flags;
+ slot_ctx = xhci_get_slot_ctx(xhci, in_ctx);
/* Update the last valid endpoint context, if we just added one past */
- if ((in_ctx->slot.dev_info & LAST_CTX_MASK) < LAST_CTX(last_ctx)) {
- in_ctx->slot.dev_info &= ~LAST_CTX_MASK;
- in_ctx->slot.dev_info |= LAST_CTX(last_ctx);
+ if ((slot_ctx->dev_info & LAST_CTX_MASK) < LAST_CTX(last_ctx)) {
+ slot_ctx->dev_info &= ~LAST_CTX_MASK;
+ slot_ctx->dev_info |= LAST_CTX(last_ctx);
}
- new_slot_info = in_ctx->slot.dev_info;
+ new_slot_info = slot_ctx->dev_info;
+
+ /* Store the usb_device pointer for later use */
+ ep->hcpriv = udev;
xhci_dbg(xhci, "add ep 0x%x, slot id %d, new drop flags = %#x, new add flags = %#x, new slot info = %#x\n",
(unsigned int) ep->desc.bEndpointAddress,
@@ -860,9 +902,11 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
return 0;
}
-static void xhci_zero_in_ctx(struct xhci_virt_device *virt_dev)
+static void xhci_zero_in_ctx(struct xhci_hcd *xhci, struct xhci_virt_device *virt_dev)
{
+ struct xhci_input_control_ctx *ctrl_ctx;
struct xhci_ep_ctx *ep_ctx;
+ struct xhci_slot_ctx *slot_ctx;
int i;
/* When a device's add flag and drop flag are zero, any subsequent
@@ -870,17 +914,18 @@ static void xhci_zero_in_ctx(struct xhci_virt_device *virt_dev)
* untouched. Make sure we don't leave any old state in the input
* endpoint contexts.
*/
- virt_dev->in_ctx->drop_flags = 0;
- virt_dev->in_ctx->add_flags = 0;
- virt_dev->in_ctx->slot.dev_info &= ~LAST_CTX_MASK;
+ ctrl_ctx = xhci_get_input_control_ctx(xhci, virt_dev->in_ctx);
+ ctrl_ctx->drop_flags = 0;
+ ctrl_ctx->add_flags = 0;
+ slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->in_ctx);
+ slot_ctx->dev_info &= ~LAST_CTX_MASK;
/* Endpoint 0 is always valid */
- virt_dev->in_ctx->slot.dev_info |= LAST_CTX(1);
+ slot_ctx->dev_info |= LAST_CTX(1);
for (i = 1; i < 31; ++i) {
- ep_ctx = &virt_dev->in_ctx->ep[i];
+ ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->in_ctx, i);
ep_ctx->ep_info = 0;
ep_ctx->ep_info2 = 0;
- ep_ctx->deq[0] = 0;
- ep_ctx->deq[1] = 0;
+ ep_ctx->deq = 0;
ep_ctx->tx_info = 0;
}
}
@@ -903,6 +948,8 @@ int xhci_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev)
unsigned long flags;
struct xhci_hcd *xhci;
struct xhci_virt_device *virt_dev;
+ struct xhci_input_control_ctx *ctrl_ctx;
+ struct xhci_slot_ctx *slot_ctx;
ret = xhci_check_args(hcd, udev, NULL, 0, __func__);
if (ret <= 0)
@@ -918,16 +965,18 @@ int xhci_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev)
virt_dev = xhci->devs[udev->slot_id];
/* See section 4.6.6 - A0 = 1; A1 = D0 = D1 = 0 */
- virt_dev->in_ctx->add_flags |= SLOT_FLAG;
- virt_dev->in_ctx->add_flags &= ~EP0_FLAG;
- virt_dev->in_ctx->drop_flags &= ~SLOT_FLAG;
- virt_dev->in_ctx->drop_flags &= ~EP0_FLAG;
+ ctrl_ctx = xhci_get_input_control_ctx(xhci, virt_dev->in_ctx);
+ ctrl_ctx->add_flags |= SLOT_FLAG;
+ ctrl_ctx->add_flags &= ~EP0_FLAG;
+ ctrl_ctx->drop_flags &= ~SLOT_FLAG;
+ ctrl_ctx->drop_flags &= ~EP0_FLAG;
xhci_dbg(xhci, "New Input Control Context:\n");
- xhci_dbg_ctx(xhci, virt_dev->in_ctx, virt_dev->in_ctx_dma,
- LAST_CTX_TO_EP_NUM(virt_dev->in_ctx->slot.dev_info));
+ slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->in_ctx);
+ xhci_dbg_ctx(xhci, virt_dev->in_ctx,
+ LAST_CTX_TO_EP_NUM(slot_ctx->dev_info));
spin_lock_irqsave(&xhci->lock, flags);
- ret = xhci_queue_configure_endpoint(xhci, virt_dev->in_ctx_dma,
+ ret = xhci_queue_configure_endpoint(xhci, virt_dev->in_ctx->dma,
udev->slot_id);
if (ret < 0) {
spin_unlock_irqrestore(&xhci->lock, flags);
@@ -982,10 +1031,10 @@ int xhci_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev)
}
xhci_dbg(xhci, "Output context after successful config ep cmd:\n");
- xhci_dbg_ctx(xhci, virt_dev->out_ctx, virt_dev->out_ctx_dma,
- LAST_CTX_TO_EP_NUM(virt_dev->in_ctx->slot.dev_info));
+ xhci_dbg_ctx(xhci, virt_dev->out_ctx,
+ LAST_CTX_TO_EP_NUM(slot_ctx->dev_info));
- xhci_zero_in_ctx(virt_dev);
+ xhci_zero_in_ctx(xhci, virt_dev);
/* Free any old rings */
for (i = 1; i < 31; ++i) {
if (virt_dev->new_ep_rings[i]) {
@@ -1023,7 +1072,67 @@ void xhci_reset_bandwidth(struct usb_hcd *hcd, struct usb_device *udev)
virt_dev->new_ep_rings[i] = NULL;
}
}
- xhci_zero_in_ctx(virt_dev);
+ xhci_zero_in_ctx(xhci, virt_dev);
+}
+
+/* Deal with stalled endpoints. The core should have sent the control message
+ * to clear the halt condition. However, we need to make the xHCI hardware
+ * reset its sequence number, since a device will expect a sequence number of
+ * zero after the halt condition is cleared.
+ * Context: in_interrupt
+ */
+void xhci_endpoint_reset(struct usb_hcd *hcd,
+ struct usb_host_endpoint *ep)
+{
+ struct xhci_hcd *xhci;
+ struct usb_device *udev;
+ unsigned int ep_index;
+ unsigned long flags;
+ int ret;
+ struct xhci_dequeue_state deq_state;
+ struct xhci_ring *ep_ring;
+
+ xhci = hcd_to_xhci(hcd);
+ udev = (struct usb_device *) ep->hcpriv;
+ /* Called with a root hub endpoint (or an endpoint that wasn't added
+ * with xhci_add_endpoint()
+ */
+ if (!ep->hcpriv)
+ return;