diff -Naur -X linux-2.6.31-rc8-tty.current/Documentation/dontdiff linux-2.6.31-rc8-tty.current/drivers/usb/host/xhci-dbg.c linux-2.6.31-rc8-usb.current/drivers/usb/host/xhci-dbg.c --- linux-2.6.31-rc8-tty.current/drivers/usb/host/xhci-dbg.c 2009-08-28 08:39:00.000000000 -0700 +++ linux-2.6.31-rc8-usb.current/drivers/usb/host/xhci-dbg.c 2009-09-03 12:01:35.000000000 -0700 @@ -413,7 +413,8 @@ int i; 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); + dma_addr_t dma = ctx->dma + + ((unsigned long)slot_ctx - (unsigned long)ctx->bytes); int csz = HCC_64BYTE_CONTEXT(xhci->hcc_params); xhci_dbg(xhci, "Slot Context:\n"); @@ -459,7 +460,7 @@ 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); + ((unsigned long)ep_ctx - (unsigned long)ctx->bytes); xhci_dbg(xhci, "Endpoint %02d Context:\n", i); xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - ep_info\n", diff -Naur -X linux-2.6.31-rc8-tty.current/Documentation/dontdiff linux-2.6.31-rc8-tty.current/drivers/usb/host/xhci.h linux-2.6.31-rc8-usb.current/drivers/usb/host/xhci.h --- linux-2.6.31-rc8-tty.current/drivers/usb/host/xhci.h 2009-08-28 08:39:00.000000000 -0700 +++ linux-2.6.31-rc8-usb.current/drivers/usb/host/xhci.h 2009-09-03 12:01:35.000000000 -0700 @@ -589,6 +589,7 @@ */ #define FORCE_EVENT (0x1) #define ERROR_COUNT(p) (((p) & 0x3) << 1) +#define CTX_TO_EP_TYPE(p) (((p) >> 3) & 0x7) #define EP_TYPE(p) ((p) << 3) #define ISOC_OUT_EP 1 #define BULK_OUT_EP 2 @@ -601,6 +602,8 @@ /* bit 7 is Host Initiate Disable - for disabling stream selection */ #define MAX_BURST(p) (((p)&0xff) << 8) #define MAX_PACKET(p) (((p)&0xffff) << 16) +#define MAX_PACKET_MASK (0xffff << 16) +#define MAX_PACKET_DECODED(p) (((p) >> 16) & 0xffff) /** @@ -926,6 +929,12 @@ union xhci_trb *last_trb; }; +struct xhci_dequeue_state { + struct xhci_segment *new_deq_seg; + union xhci_trb *new_deq_ptr; + int new_cycle_state; +}; + struct xhci_ring { struct xhci_segment *first_seg; union xhci_trb *enqueue; @@ -952,12 +961,6 @@ u32 cycle_state; }; -struct xhci_dequeue_state { - struct xhci_segment *new_deq_seg; - union xhci_trb *new_deq_ptr; - int new_cycle_state; -}; - struct xhci_erst_entry { /* 64-bit event ring segment address */ u64 seg_addr; @@ -1058,6 +1061,9 @@ int noops_submitted; int noops_handled; int error_bitmask; + unsigned int quirks; +#define XHCI_LINK_TRB_QUIRK (1 << 0) +#define XHCI_RESET_EP_QUIRK (1 << 1) }; /* For testing purposes */ @@ -1136,6 +1142,13 @@ writel(val_hi, ptr + 1); } +static inline int xhci_link_trb_quirk(struct xhci_hcd *xhci) +{ + u32 temp = xhci_readl(xhci, &xhci->cap_regs->hc_capbase); + return ((HC_VERSION(temp) == 0x95) && + (xhci->quirks & XHCI_LINK_TRB_QUIRK)); +} + /* xHCI debugging */ void xhci_print_ir_set(struct xhci_hcd *xhci, struct xhci_intr_reg *ir_set, int set_num); void xhci_print_registers(struct xhci_hcd *xhci); @@ -1158,7 +1171,12 @@ int xhci_setup_addressable_virt_dev(struct xhci_hcd *xhci, struct usb_device *udev); unsigned int xhci_get_endpoint_index(struct usb_endpoint_descriptor *desc); unsigned int xhci_get_endpoint_flag(struct usb_endpoint_descriptor *desc); +unsigned int xhci_get_endpoint_flag_from_index(unsigned int ep_index); +unsigned int xhci_last_valid_endpoint(u32 added_ctxs); void xhci_endpoint_zero(struct xhci_hcd *xhci, struct xhci_virt_device *virt_dev, struct usb_host_endpoint *ep); +void xhci_endpoint_copy(struct xhci_hcd *xhci, + struct xhci_virt_device *vdev, unsigned int ep_index); +void xhci_slot_copy(struct xhci_hcd *xhci, struct xhci_virt_device *vdev); int xhci_endpoint_init(struct xhci_hcd *xhci, struct xhci_virt_device *virt_dev, struct usb_device *udev, struct usb_host_endpoint *ep, gfp_t mem_flags); @@ -1207,6 +1225,8 @@ int slot_id, unsigned int ep_index); int xhci_queue_configure_endpoint(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, u32 slot_id); +int xhci_queue_evaluate_context(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, + u32 slot_id); int xhci_queue_reset_ep(struct xhci_hcd *xhci, int slot_id, unsigned int ep_index); void xhci_find_new_dequeue_state(struct xhci_hcd *xhci, @@ -1215,6 +1235,12 @@ void xhci_queue_new_dequeue_state(struct xhci_hcd *xhci, struct xhci_ring *ep_ring, unsigned int slot_id, unsigned int ep_index, struct xhci_dequeue_state *deq_state); +void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci, + struct usb_device *udev, + unsigned int ep_index, struct xhci_ring *ep_ring); +void xhci_queue_config_ep_quirk(struct xhci_hcd *xhci, + unsigned int slot_id, unsigned int ep_index, + struct xhci_dequeue_state *deq_state); /* xHCI roothub code */ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, diff -Naur -X linux-2.6.31-rc8-tty.current/Documentation/dontdiff linux-2.6.31-rc8-tty.current/drivers/usb/host/xhci-hcd.c linux-2.6.31-rc8-usb.current/drivers/usb/host/xhci-hcd.c --- linux-2.6.31-rc8-tty.current/drivers/usb/host/xhci-hcd.c 2009-08-28 08:39:00.000000000 -0700 +++ linux-2.6.31-rc8-usb.current/drivers/usb/host/xhci-hcd.c 2009-09-03 12:01:35.000000000 -0700 @@ -22,12 +22,18 @@ #include #include +#include #include "xhci.h" #define DRIVER_AUTHOR "Sarah Sharp" #define DRIVER_DESC "'eXtensible' Host Controller (xHC) Driver" +/* Some 0.95 hardware can't handle the chain bit on a Link TRB being cleared */ +static int link_quirk; +module_param(link_quirk, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(link_quirk, "Don't clear the chain bit on a link TRB"); + /* TODO: copied from ehci-hcd.c - can this be refactored? */ /* * handshake - spin reading hc until handshake completes or fails @@ -214,6 +220,12 @@ xhci_dbg(xhci, "xhci_init\n"); spin_lock_init(&xhci->lock); + if (link_quirk) { + xhci_dbg(xhci, "QUIRK: Not clearing Link TRB chain bits.\n"); + xhci->quirks |= XHCI_LINK_TRB_QUIRK; + } else { + xhci_dbg(xhci, "xHCI doesn't need link TRB QUIRK\n"); + } retval = xhci_mem_init(xhci, GFP_KERNEL); xhci_dbg(xhci, "Finished xhci_init\n"); @@ -555,13 +567,22 @@ return 1 << (xhci_get_endpoint_index(desc) + 1); } +/* Find the flag for this endpoint (for use in the control context). Use the + * endpoint index to create a bitmask. The slot context is bit 0, endpoint 0 is + * bit 1, etc. + */ +unsigned int xhci_get_endpoint_flag_from_index(unsigned int ep_index) +{ + return 1 << (ep_index + 1); +} + /* Compute the last valid endpoint context index. Basically, this is the * endpoint index plus one. For slot contexts with more than valid endpoint, * we find the most significant bit set in the added contexts flags. * e.g. ep 1 IN (with epnum 0x81) => added_ctxs = 0b1000 * fls(0b1000) = 4, but the endpoint context index is 3, so subtract one. */ -static inline unsigned int xhci_last_valid_endpoint(u32 added_ctxs) +unsigned int xhci_last_valid_endpoint(u32 added_ctxs) { return fls(added_ctxs) - 1; } @@ -589,6 +610,70 @@ return 1; } +static int xhci_configure_endpoint(struct xhci_hcd *xhci, + struct usb_device *udev, struct xhci_virt_device *virt_dev, + bool ctx_change); + +/* + * Full speed devices may have a max packet size greater than 8 bytes, but the + * USB core doesn't know that until it reads the first 8 bytes of the + * descriptor. If the usb_device's max packet size changes after that point, + * we need to issue an evaluate context command and wait on it. + */ +static int xhci_check_maxpacket(struct xhci_hcd *xhci, unsigned int slot_id, + unsigned int ep_index, struct urb *urb) +{ + struct xhci_container_ctx *in_ctx; + struct xhci_container_ctx *out_ctx; + struct xhci_input_control_ctx *ctrl_ctx; + struct xhci_ep_ctx *ep_ctx; + int max_packet_size; + int hw_max_packet_size; + int ret = 0; + + out_ctx = xhci->devs[slot_id]->out_ctx; + ep_ctx = xhci_get_ep_ctx(xhci, out_ctx, ep_index); + hw_max_packet_size = MAX_PACKET_DECODED(ep_ctx->ep_info2); + max_packet_size = urb->dev->ep0.desc.wMaxPacketSize; + if (hw_max_packet_size != max_packet_size) { + xhci_dbg(xhci, "Max Packet Size for ep 0 changed.\n"); + xhci_dbg(xhci, "Max packet size in usb_device = %d\n", + max_packet_size); + xhci_dbg(xhci, "Max packet size in xHCI HW = %d\n", + hw_max_packet_size); + xhci_dbg(xhci, "Issuing evaluate context command.\n"); + + /* Set up the modified control endpoint 0 */ + xhci_endpoint_copy(xhci, xhci->devs[slot_id], ep_index); + in_ctx = xhci->devs[slot_id]->in_ctx; + ep_ctx = xhci_get_ep_ctx(xhci, in_ctx, ep_index); + ep_ctx->ep_info2 &= ~MAX_PACKET_MASK; + ep_ctx->ep_info2 |= MAX_PACKET(max_packet_size); + + /* Set up the input context flags for the command */ + /* FIXME: This won't work if a non-default control endpoint + * changes max packet sizes. + */ + ctrl_ctx = xhci_get_input_control_ctx(xhci, in_ctx); + ctrl_ctx->add_flags = EP0_FLAG; + ctrl_ctx->drop_flags = 0; + + xhci_dbg(xhci, "Slot %d input context\n", slot_id); + xhci_dbg_ctx(xhci, in_ctx, ep_index); + xhci_dbg(xhci, "Slot %d output context\n", slot_id); + xhci_dbg_ctx(xhci, out_ctx, ep_index); + + ret = xhci_configure_endpoint(xhci, urb->dev, + xhci->devs[slot_id], true); + + /* Clean up the input context for later use by bandwidth + * functions. + */ + ctrl_ctx->add_flags = SLOT_FLAG; + } + return ret; +} + /* * non-error returns are a promise to giveback() the urb later * we drop ownership so next owner (or urb unlink) can get it @@ -600,13 +685,13 @@ int ret = 0; unsigned int slot_id, ep_index; + if (!urb || xhci_check_args(hcd, urb->dev, urb->ep, true, __func__) <= 0) return -EINVAL; slot_id = urb->dev->slot_id; ep_index = xhci_get_endpoint_index(&urb->ep->desc); - spin_lock_irqsave(&xhci->lock, flags); if (!xhci->devs || !xhci->devs[slot_id]) { if (!in_interrupt()) dev_warn(&urb->dev->dev, "WARN: urb submitted for dev with no Slot ID\n"); @@ -619,19 +704,33 @@ ret = -ESHUTDOWN; goto exit; } - if (usb_endpoint_xfer_control(&urb->ep->desc)) + if (usb_endpoint_xfer_control(&urb->ep->desc)) { + /* Check to see if the max packet size for the default control + * endpoint changed during FS device enumeration + */ + if (urb->dev->speed == USB_SPEED_FULL) { + ret = xhci_check_maxpacket(xhci, slot_id, + ep_index, urb); + if (ret < 0) + return ret; + } + /* We have a spinlock and interrupts disabled, so we must pass * atomic context to this function, which may allocate memory. */ + spin_lock_irqsave(&xhci->lock, flags); ret = xhci_queue_ctrl_tx(xhci, GFP_ATOMIC, urb, slot_id, ep_index); - else if (usb_endpoint_xfer_bulk(&urb->ep->desc)) + spin_unlock_irqrestore(&xhci->lock, flags); + } else if (usb_endpoint_xfer_bulk(&urb->ep->desc)) { + spin_lock_irqsave(&xhci->lock, flags); ret = xhci_queue_bulk_tx(xhci, GFP_ATOMIC, urb, slot_id, ep_index); - else + spin_unlock_irqrestore(&xhci->lock, flags); + } else { ret = -EINVAL; + } exit: - spin_unlock_irqrestore(&xhci->lock, flags); return ret; } @@ -930,6 +1029,122 @@ } } +static int xhci_configure_endpoint_result(struct xhci_hcd *xhci, + struct usb_device *udev, struct xhci_virt_device *virt_dev) +{ + int ret; + + switch (virt_dev->cmd_status) { + case COMP_ENOMEM: + dev_warn(&udev->dev, "Not enough host controller resources " + "for new device state.\n"); + ret = -ENOMEM; + /* FIXME: can we allocate more resources for the HC? */ + break; + case COMP_BW_ERR: + dev_warn(&udev->dev, "Not enough bandwidth " + "for new device state.\n"); + ret = -ENOSPC; + /* FIXME: can we go back to the old state? */ + break; + case COMP_TRB_ERR: + /* the HCD set up something wrong */ + dev_warn(&udev->dev, "ERROR: Endpoint drop flag = 0, " + "add flag = 1, " + "and endpoint is not disabled.\n"); + ret = -EINVAL; + break; + case COMP_SUCCESS: + dev_dbg(&udev->dev, "Successful Endpoint Configure command\n"); + ret = 0; + break; + default: + xhci_err(xhci, "ERROR: unexpected command completion " + "code 0x%x.\n", virt_dev->cmd_status); + ret = -EINVAL; + break; + } + return ret; +} + +static int xhci_evaluate_context_result(struct xhci_hcd *xhci, + struct usb_device *udev, struct xhci_virt_device *virt_dev) +{ + int ret; + + switch (virt_dev->cmd_status) { + case COMP_EINVAL: + dev_warn(&udev->dev, "WARN: xHCI driver setup invalid evaluate " + "context command.\n"); + ret = -EINVAL; + break; + case COMP_EBADSLT: + dev_warn(&udev->dev, "WARN: slot not enabled for" + "evaluate context command.\n"); + case COMP_CTX_STATE: + dev_warn(&udev->dev, "WARN: invalid context state for " + "evaluate context command.\n"); + xhci_dbg_ctx(xhci, virt_dev->out_ctx, 1); + ret = -EINVAL; + break; + case COMP_SUCCESS: + dev_dbg(&udev->dev, "Successful evaluate context command\n"); + ret = 0; + break; + default: + xhci_err(xhci, "ERROR: unexpected command completion " + "code 0x%x.\n", virt_dev->cmd_status); + ret = -EINVAL; + break; + } + return ret; +} + +/* Issue a configure endpoint command or evaluate context command + * and wait for it to finish. + */ +static int xhci_configure_endpoint(struct xhci_hcd *xhci, + struct usb_device *udev, struct xhci_virt_device *virt_dev, + bool ctx_change) +{ + int ret; + int timeleft; + unsigned long flags; + + spin_lock_irqsave(&xhci->lock, flags); + if (!ctx_change) + ret = xhci_queue_configure_endpoint(xhci, virt_dev->in_ctx->dma, + udev->slot_id); + else + ret = xhci_queue_evaluate_context(xhci, virt_dev->in_ctx->dma, + udev->slot_id); + if (ret < 0) { + spin_unlock_irqrestore(&xhci->lock, flags); + xhci_dbg(xhci, "FIXME allocate a new ring segment\n"); + return -ENOMEM; + } + xhci_ring_cmd_db(xhci); + spin_unlock_irqrestore(&xhci->lock, flags); + + /* Wait for the configure endpoint command to complete */ + timeleft = wait_for_completion_interruptible_timeout( + &virt_dev->cmd_completion, + USB_CTRL_SET_TIMEOUT); + if (timeleft <= 0) { + xhci_warn(xhci, "%s while waiting for %s command\n", + timeleft == 0 ? "Timeout" : "Signal", + ctx_change == 0 ? + "configure endpoint" : + "evaluate context"); + /* FIXME cancel the configure endpoint command */ + return -ETIME; + } + + if (!ctx_change) + return xhci_configure_endpoint_result(xhci, udev, virt_dev); + return xhci_evaluate_context_result(xhci, udev, virt_dev); +} + /* Called after one or more calls to xhci_add_endpoint() or * xhci_drop_endpoint(). If this call fails, the USB core is expected * to call xhci_reset_bandwidth(). @@ -944,8 +1159,6 @@ { int i; int ret = 0; - int timeleft; - unsigned long flags; struct xhci_hcd *xhci; struct xhci_virt_device *virt_dev; struct xhci_input_control_ctx *ctrl_ctx; @@ -975,56 +1188,7 @@ 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, - udev->slot_id); - if (ret < 0) { - spin_unlock_irqrestore(&xhci->lock, flags); - xhci_dbg(xhci, "FIXME allocate a new ring segment\n"); - return -ENOMEM; - } - xhci_ring_cmd_db(xhci); - spin_unlock_irqrestore(&xhci->lock, flags); - - /* Wait for the configure endpoint command to complete */ - timeleft = wait_for_completion_interruptible_timeout( - &virt_dev->cmd_completion, - USB_CTRL_SET_TIMEOUT); - if (timeleft <= 0) { - xhci_warn(xhci, "%s while waiting for configure endpoint command\n", - timeleft == 0 ? "Timeout" : "Signal"); - /* FIXME cancel the configure endpoint command */ - return -ETIME; - } - - switch (virt_dev->cmd_status) { - case COMP_ENOMEM: - dev_warn(&udev->dev, "Not enough host controller resources " - "for new device state.\n"); - ret = -ENOMEM; - /* FIXME: can we allocate more resources for the HC? */ - break; - case COMP_BW_ERR: - dev_warn(&udev->dev, "Not enough bandwidth " - "for new device state.\n"); - ret = -ENOSPC; - /* FIXME: can we go back to the old state? */ - break; - case COMP_TRB_ERR: - /* the HCD set up something wrong */ - dev_warn(&udev->dev, "ERROR: Endpoint drop flag = 0, add flag = 1, " - "and endpoint is not disabled.\n"); - ret = -EINVAL; - break; - case COMP_SUCCESS: - dev_dbg(&udev->dev, "Successful Endpoint Configure command\n"); - break; - default: - xhci_err(xhci, "ERROR: unexpected command completion " - "code 0x%x.\n", virt_dev->cmd_status); - ret = -EINVAL; - break; - } + ret = xhci_configure_endpoint(xhci, udev, virt_dev, false); if (ret) { /* Callee should call reset_bandwidth() */ return ret; @@ -1075,6 +1239,75 @@ xhci_zero_in_ctx(xhci, virt_dev); } +void xhci_setup_input_ctx_for_quirk(struct xhci_hcd *xhci, + unsigned int slot_id, unsigned int ep_index, + struct xhci_dequeue_state *deq_state) +{ + struct xhci_container_ctx *in_ctx; + struct xhci_input_control_ctx *ctrl_ctx; + struct xhci_ep_ctx *ep_ctx; + u32 added_ctxs; + dma_addr_t addr; + + xhci_endpoint_copy(xhci, xhci->devs[slot_id], ep_index); + in_ctx = xhci->devs[slot_id]->in_ctx; + ep_ctx = xhci_get_ep_ctx(xhci, in_ctx, ep_index); + addr = xhci_trb_virt_to_dma(deq_state->new_deq_seg, + deq_state->new_deq_ptr); + if (addr == 0) { + xhci_warn(xhci, "WARN Cannot submit config ep after " + "reset ep command\n"); + xhci_warn(xhci, "WARN deq seg = %p, deq ptr = %p\n", + deq_state->new_deq_seg, + deq_state->new_deq_ptr); + return; + } + ep_ctx->deq = addr | deq_state->new_cycle_state; + + xhci_slot_copy(xhci, xhci->devs[slot_id]); + + ctrl_ctx = xhci_get_input_control_ctx(xhci, in_ctx); + added_ctxs = xhci_get_endpoint_flag_from_index(ep_index); + ctrl_ctx->add_flags = added_ctxs | SLOT_FLAG; + ctrl_ctx->drop_flags = added_ctxs; + + xhci_dbg(xhci, "Slot ID %d Input Context:\n", slot_id); + xhci_dbg_ctx(xhci, in_ctx, ep_index); +} + +void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci, + struct usb_device *udev, + unsigned int ep_index, struct xhci_ring *ep_ring) +{ + struct xhci_dequeue_state deq_state; + + xhci_dbg(xhci, "Cleaning up stalled endpoint ring\n"); + /* We need to move the HW's dequeue pointer past this TD, + * or it will attempt to resend it on the next doorbell ring. + */ + xhci_find_new_dequeue_state(xhci, udev->slot_id, + ep_index, ep_ring->stopped_td, + &deq_state); + + /* HW with the reset endpoint quirk will use the saved dequeue state to + * issue a configure endpoint command later. + */ + if (!(xhci->quirks & XHCI_RESET_EP_QUIRK)) { + xhci_dbg(xhci, "Queueing new dequeue state\n"); + xhci_queue_new_dequeue_state(xhci, ep_ring, + udev->slot_id, + ep_index, &deq_state); + } else { + /* Better hope no one uses the input context between now and the + * reset endpoint completion! + */ + xhci_dbg(xhci, "Setting up input context for " + "configure endpoint command\n"); + xhci_setup_input_ctx_for_quirk(xhci, udev->slot_id, + ep_index, &deq_state); + } +} + /* 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 @@ -1089,7 +1322,6 @@ 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); @@ -1106,6 +1338,10 @@ ep->desc.bEndpointAddress); return; } + if (usb_endpoint_xfer_control(&ep->desc)) { + xhci_dbg(xhci, "Control endpoint stall already handled.\n"); + return; + } xhci_dbg(xhci, "Queueing reset endpoint command\n"); spin_lock_irqsave(&xhci->lock, flags); @@ -1116,16 +1352,7 @@ * command. Better hope that last command worked! */ if (!ret) { - xhci_dbg(xhci, "Cleaning up stalled endpoint ring\n"); - /* We need to move the HW's dequeue pointer past this TD, - * or it will attempt to resend it on the next doorbell ring. - */ - xhci_find_new_dequeue_state(xhci, udev->slot_id, - ep_index, ep_ring->stopped_td, &deq_state); - xhci_dbg(xhci, "Queueing new dequeue state\n"); - xhci_queue_new_dequeue_state(xhci, ep_ring, - udev->slot_id, - ep_index, &deq_state); + xhci_cleanup_stalled_ring(xhci, udev, ep_index, ep_ring); kfree(ep_ring->stopped_td); xhci_ring_cmd_db(xhci); } diff -Naur -X linux-2.6.31-rc8-tty.current/Documentation/dontdiff linux-2.6.31-rc8-tty.current/drivers/usb/host/xhci-mem.c linux-2.6.31-rc8-usb.current/drivers/usb/host/xhci-mem.c --- linux-2.6.31-rc8-tty.current/drivers/usb/host/xhci-mem.c 2009-08-28 08:39:00.000000000 -0700 +++ linux-2.6.31-rc8-usb.current/drivers/usb/host/xhci-mem.c 2009-09-03 12:01:35.000000000 -0700 @@ -94,6 +94,9 @@ val = prev->trbs[TRBS_PER_SEGMENT-1].link.control; val &= ~TRB_TYPE_BITMASK; val |= TRB_TYPE(TRB_LINK); + /* Always set the chain bit with 0.95 hardware */ + if (xhci_link_trb_quirk(xhci)) + val |= TRB_CHAIN; prev->trbs[TRBS_PER_SEGMENT-1].link.control = val; } xhci_dbg(xhci, "Linking segment 0x%llx to segment 0x%llx (DMA)\n", @@ -398,15 +401,28 @@ /* Step 5 */ ep0_ctx->ep_info2 = EP_TYPE(CTRL_EP); /* - * See section 4.3 bullet 6: - * The default Max Packet size for ep0 is "8 bytes for a USB2 - * LS/FS/HS device or 512 bytes for a USB3 SS device" * XXX: Not sure about wireless USB devices. */ - if (udev->speed == USB_SPEED_SUPER) + switch (udev->speed) { + case USB_SPEED_SUPER: ep0_ctx->ep_info2 |= MAX_PACKET(512); - else + break; + case USB_SPEED_HIGH: + /* USB core guesses at a 64-byte max packet first for FS devices */ + case USB_SPEED_FULL: + ep0_ctx->ep_info2 |= MAX_PACKET(64); + break; + case USB_SPEED_LOW: ep0_ctx->ep_info2 |= MAX_PACKET(8); + break; + case USB_SPEED_VARIABLE: + xhci_dbg(xhci, "FIXME xHCI doesn't support wireless speeds\n"); + return -EINVAL; + break; + default: + /* New speed? */ + BUG(); + } /* EP 0 can handle "burst" sizes of 1, so Max Burst Size field is 0 */ ep0_ctx->ep_info2 |= MAX_BURST(0); ep0_ctx->ep_info2 |= ERROR_COUNT(3); @@ -598,6 +614,44 @@ */ } +/* Copy output xhci_ep_ctx to the input xhci_ep_ctx copy. + * Useful when you want to change one particular aspect of the endpoint and then + * issue a configure endpoint command. + */ +void xhci_endpoint_copy(struct xhci_hcd *xhci, + struct xhci_virt_device *vdev, unsigned int ep_index) +{ + struct xhci_ep_ctx *out_ep_ctx; + struct xhci_ep_ctx *in_ep_ctx; + + out_ep_ctx = xhci_get_ep_ctx(xhci, vdev->out_ctx, ep_index); + in_ep_ctx = xhci_get_ep_ctx(xhci, vdev->in_ctx, ep_index); + + in_ep_ctx->ep_info = out_ep_ctx->ep_info; + in_ep_ctx->ep_info2 = out_ep_ctx->ep_info2; + in_ep_ctx->deq = out_ep_ctx->deq; + in_ep_ctx->tx_info = out_ep_ctx->tx_info; +} + +/* Copy output xhci_slot_ctx to the input xhci_slot_ctx. + * Useful when you want to change one particular aspect of the endpoint and then + * issue a configure endpoint command. Only the context entries field matters, + * but we'll copy the whole thing anyway. + */ +void xhci_slot_copy(struct xhci_hcd *xhci, struct xhci_virt_device *vdev) +{ + struct xhci_slot_ctx *in_slot_ctx; + struct xhci_slot_ctx *out_slot_ctx; + + in_slot_ctx = xhci_get_slot_ctx(xhci, vdev->in_ctx); + out_slot_ctx = xhci_get_slot_ctx(xhci, vdev->out_ctx); + + in_slot_ctx->dev_info = out_slot_ctx->dev_info; + in_slot_ctx->dev_info2 = out_slot_ctx->dev_info2; + in_slot_ctx->tt_info = out_slot_ctx->tt_info; + in_slot_ctx->dev_state = out_slot_ctx->dev_state; +} + /* Set up the scratchpad buffer array and scratchpad buffers, if needed. */ static int scratchpad_alloc(struct xhci_hcd *xhci, gfp_t flags) { diff -Naur -X linux-2.6.31-rc8-tty.current/Documentation/dontdiff linux-2.6.31-rc8-tty.current/drivers/usb/host/xhci-pci.c linux-2.6.31-rc8-usb.current/drivers/usb/host/xhci-pci.c --- linux-2.6.31-rc8-tty.current/drivers/usb/host/xhci-pci.c 2009-08-28 08:39:00.000000000 -0700 +++ linux-2.6.31-rc8-usb.current/drivers/usb/host/xhci-pci.c 2009-09-03 12:01:35.000000000 -0700 @@ -24,6 +24,10 @@ #include "xhci.h" +/* Device for a quirk */ +#define PCI_VENDOR_ID_FRESCO_LOGIC 0x1b73 +#define PCI_DEVICE_ID_FRESCO_LOGIC_PDK 0x1000 + static const char hcd_name[] = "xhci_hcd"; /* called after powerup, by probe or system-pm "wakeup" */ @@ -62,6 +66,15 @@ xhci->hcc_params = xhci_readl(xhci, &xhci->cap_regs->hcc_params); xhci_print_registers(xhci); + /* Look for vendor-specific quirks */ + if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC && + pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK && + pdev->revision == 0x0) { + xhci->quirks |= XHCI_RESET_EP_QUIRK; + xhci_dbg(xhci, "QUIRK: Fresco Logic xHC needs configure" + " endpoint cmd after reset endpoint\n"); + } + /* Make sure the HC is halted. */ retval = xhci_halt(xhci); if (retval) diff -Naur -X linux-2.6.31-rc8-tty.current/Documentation/dontdiff linux-2.6.31-rc8-tty.current/drivers/usb/host/xhci-ring.c linux-2.6.31-rc8-usb.current/drivers/usb/host/xhci-ring.c --- linux-2.6.31-rc8-tty.current/drivers/usb/host/xhci-ring.c 2009-08-28 08:39:00.000000000 -0700 +++ linux-2.6.31-rc8-usb.current/drivers/usb/host/xhci-ring.c 2009-09-03 12:01:35.000000000 -0700 @@ -172,8 +172,9 @@ * have their chain bit cleared (so that each Link TRB is a separate TD). * * Section 6.4.4.1 of the 0.95 spec says link TRBs cannot have the chain bit - * set, but other sections talk about dealing with the chain bit set. - * Assume section 6.4.4.1 is wrong, and the chain bit can be set in a Link TRB. + * set, but other sections talk about dealing with the chain bit set. This was + * fixed in the 0.96 specification errata, but we have to assume that all 0.95 + * xHCI hardware can't handle the chain bit being cleared on a link TRB. */ static void inc_enq(struct xhci_hcd *xhci, struct xhci_ring *ring, bool consumer) { @@ -191,8 +192,14 @@ while (last_trb(xhci, ring, ring->enq_seg, next)) { if (!consumer) { if (ring != xhci->event_ring) { - next->link.control &= ~TRB_CHAIN; - next->link.control |= chain; + /* If we're not dealing with 0.95 hardware, + * carry over the chain bit of the previous TRB + * (which may mean the chain bit is cleared). + */ + if (!xhci_link_trb_quirk(xhci)) { + next->link.control &= ~TRB_CHAIN; + next->link.control |= chain; + } /* Give this link TRB to the hardware */ wmb(); if (next->link.control & TRB_CYCLE) @@ -462,7 +469,6 @@ * ring running. */ ep_ring->state |= SET_DEQ_PENDING; - xhci_ring_cmd_db(xhci); } /* @@ -531,6 +537,7 @@ if (deq_state.new_deq_ptr && deq_state.new_deq_seg) { xhci_queue_new_dequeue_state(xhci, ep_ring, slot_id, ep_index, &deq_state); + xhci_ring_cmd_db(xhci); } else { /* Otherwise just ring the doorbell to restart the ring */ ring_ep_doorbell(xhci, slot_id, ep_index); @@ -644,18 +651,31 @@ { int slot_id; unsigned int ep_index; + struct xhci_ring *ep_ring; slot_id = TRB_TO_SLOT_ID(trb->generic.field[3]); ep_index = TRB_TO_EP_INDEX(trb->generic.field[3]); + ep_ring = xhci->devs[slot_id]->ep_rings[ep_index]; /* This command will only fail if the endpoint wasn't halted, * but we don't care. */ xhci_dbg(xhci, "Ignoring reset ep completion code of %u\n", (unsigned int) GET_COMP_CODE(event->status)); - /* Clear our internal halted state and restart the ring */ - xhci->devs[slot_id]->ep_rings[ep_index]->state &= ~EP_HALTED; - ring_ep_doorbell(xhci, slot_id, ep_index); + /* HW with the reset endpoint quirk needs to have a configure endpoint + * command complete before the endpoint can be used. Queue that here + * because the HW can't handle two commands being queued in a row. + */ + if (xhci->quirks & XHCI_RESET_EP_QUIRK) { + xhci_dbg(xhci, "Queueing configure endpoint command\n"); + xhci_queue_configure_endpoint(xhci, + xhci->devs[slot_id]->in_ctx->dma, slot_id); + xhci_ring_cmd_db(xhci); + } else { + /* Clear our internal halted state and restart the ring */ + ep_ring->state &= ~EP_HALTED; + ring_ep_doorbell(xhci, slot_id, ep_index); + } } static void handle_cmd_completion(struct xhci_hcd *xhci, @@ -664,6 +684,10 @@ int slot_id = TRB_TO_SLOT_ID(event->flags); u64 cmd_dma; dma_addr_t cmd_dequeue_dma; + struct xhci_input_control_ctx *ctrl_ctx; + unsigned int ep_index; + struct xhci_ring *ep_ring; + unsigned int ep_state; cmd_dma = event->cmd_trb; cmd_dequeue_dma = xhci_trb_virt_to_dma(xhci->cmd_ring->deq_seg, @@ -691,6 +715,41 @@ xhci_free_virt_device(xhci, slot_id); break; case TRB_TYPE(TRB_CONFIG_EP): + /* + * Configure endpoint commands can come from the USB core + * configuration or alt setting changes, or because the HW + * needed an extra configure endpoint command after a reset + * endpoint command. In the latter case, the xHCI driver is + * not waiting on the configure endpoint command. + */ + ctrl_ctx = xhci_get_input_control_ctx(xhci, + xhci->devs[slot_id]->in_ctx); + /* Input ctx add_flags are the endpoint index plus one */ + ep_index = xhci_last_valid_endpoint(ctrl_ctx->add_flags) - 1; + ep_ring = xhci->devs[slot_id]->ep_rings[ep_index]; + if (!ep_ring) { + /* This must have been an initial configure endpoint */ + xhci->devs[slot_id]->cmd_status = + GET_COMP_CODE(event->status); + complete(&xhci->devs[slot_id]->cmd_completion); + break; + } + ep_state = ep_ring->state; + xhci_dbg(xhci, "Completed config ep cmd - last ep index = %d, " + "state = %d\n", ep_index, ep_state); + if (xhci->quirks & XHCI_RESET_EP_QUIRK && + ep_state & EP_HALTED) { + /* Clear our internal halted state and restart ring */ + xhci->devs[slot_id]->ep_rings[ep_index]->state &= + ~EP_HALTED; + ring_ep_doorbell(xhci, slot_id, ep_index); + } else { + xhci->devs[slot_id]->cmd_status = + GET_COMP_CODE(event->status); + complete(&xhci->devs[slot_id]->cmd_completion); + } + break; + case TRB_TYPE(TRB_EVAL_CONTEXT): xhci->devs[slot_id]->cmd_status = GET_COMP_CODE(event->status); complete(&xhci->devs[slot_id]->cmd_completion); break; @@ -806,6 +865,7 @@ { struct xhci_virt_device *xdev; struct xhci_ring *ep_ring; + unsigned int slot_id; int ep_index; struct xhci_td *td = 0; dma_addr_t event_dma; @@ -816,7 +876,8 @@ struct xhci_ep_ctx *ep_ctx; xhci_dbg(xhci, "In %s\n", __func__); - xdev = xhci->devs[TRB_TO_SLOT_ID(event->flags)]; + slot_id = TRB_TO_SLOT_ID(event->flags); + xdev = xhci->devs[slot_id]; if (!xdev) { xhci_err(xhci, "ERROR Transfer event pointed to bad slot\n"); return -ENODEV; @@ -930,6 +991,24 @@ xhci_warn(xhci, "WARN: short transfer on control ep\n"); status = -EREMOTEIO; break; + case COMP_STALL: + /* Did we transfer part of the data (middle) phase? */ + if (event_trb != ep_ring->dequeue && + event_trb != td->last_trb) + td->urb->actual_length = + td->urb->transfer_buffer_length + - TRB_LEN(event->transfer_len); + else + td->urb->actual_length = 0; + + ep_ring->stopped_td = td; + ep_ring->stopped_trb = event_trb; + xhci_queue_reset_ep(xhci, slot_id, ep_index); + xhci_cleanup_stalled_ring(xhci, + td->urb->dev, + ep_index, ep_ring); + xhci_ring_cmd_db(xhci); + goto td_cleanup; default: /* Others already handled above */ break; @@ -1072,6 +1151,7 @@ inc_deq(xhci, ep_ring, false); } +td_cleanup: /* Clean up the endpoint's TD list */ urb = td->urb; list_del(&td->td_list); @@ -1080,8 +1160,13 @@ list_del(&td->cancelled_td_list); ep_ring->cancels_pending--; } - /* Leave the TD around for the reset endpoint function to use */ - if (GET_COMP_CODE(event->transfer_len) != COMP_STALL) { + /* Leave the TD around for the reset endpoint function to use + * (but only if it's not a control endpoint, since we already + * queued the Set TR dequeue pointer command for stalled + * control endpoints). + */ + if (usb_endpoint_xfer_control(&urb->ep->desc) || + GET_COMP_CODE(event->transfer_len) != COMP_STALL) { kfree(td); } urb->hcpriv = NULL; @@ -1733,6 +1818,15 @@ TRB_TYPE(TRB_CONFIG_EP) | SLOT_ID_FOR_TRB(slot_id)); } +/* Queue an evaluate context command TRB */ +int xhci_queue_evaluate_context(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, + u32 slot_id) +{ + return queue_command(xhci, lower_32_bits(in_ctx_ptr), + upper_32_bits(in_ctx_ptr), 0, + TRB_TYPE(TRB_EVAL_CONTEXT) | SLOT_ID_FOR_TRB(slot_id)); +} + int xhci_queue_stop_endpoint(struct xhci_hcd *xhci, int slot_id, unsigned int ep_index) { diff -Naur -X linux-2.6.31-rc8-tty.current/Documentation/dontdiff linux-2.6.31-rc8-tty.current/drivers/usb/serial/ftdi_sio.c linux-2.6.31-rc8-usb.current/drivers/usb/serial/ftdi_sio.c --- linux-2.6.31-rc8-tty.current/drivers/usb/serial/ftdi_sio.c 2009-08-28 08:39:00.000000000 -0700 +++ linux-2.6.31-rc8-usb.current/drivers/usb/serial/ftdi_sio.c 2009-09-03 12:01:35.000000000 -0700 @@ -702,6 +702,8 @@ { USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) }, { USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID), .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, + { USB_DEVICE(FTDI_VID, HAMEG_HO820_PID) }, + { USB_DEVICE(FTDI_VID, HAMEG_HO870_PID) }, { }, /* Optional parameter entry */ { } /* Terminating entry */ }; diff -Naur -X linux-2.6.31-rc8-tty.current/Documentation/dontdiff linux-2.6.31-rc8-tty.current/drivers/usb/serial/ftdi_sio.h linux-2.6.31-rc8-usb.current/drivers/usb/serial/ftdi_sio.h --- linux-2.6.31-rc8-tty.current/drivers/usb/serial/ftdi_sio.h 2009-08-28 08:39:00.000000000 -0700 +++ linux-2.6.31-rc8-usb.current/drivers/usb/serial/ftdi_sio.h 2009-09-03 12:01:35.000000000 -0700 @@ -968,6 +968,12 @@ #define MARVELL_OPENRD_PID 0x9e90 /* + * Hameg HO820 and HO870 interface (using VID 0x0403) + */ +#define HAMEG_HO820_PID 0xed74 +#define HAMEG_HO870_PID 0xed71 + +/* * BmRequestType: 1100 0000b * bRequest: FTDI_E2_READ * wValue: 0 diff -Naur -X linux-2.6.31-rc8-tty.current/Documentation/dontdiff linux-2.6.31-rc8-tty.current/drivers/usb/serial/option.c linux-2.6.31-rc8-usb.current/drivers/usb/serial/option.c --- linux-2.6.31-rc8-tty.current/drivers/usb/serial/option.c 2009-08-28 08:39:00.000000000 -0700 +++ linux-2.6.31-rc8-usb.current/drivers/usb/serial/option.c 2009-09-03 12:01:35.000000000 -0700 @@ -300,6 +300,7 @@ #define ZTE_PRODUCT_MF626 0x0031 #define ZTE_PRODUCT_CDMA_TECH 0xfffe #define ZTE_PRODUCT_AC8710 0xfff1 +#define ZTE_PRODUCT_AC2726 0xfff5 #define BENQ_VENDOR_ID 0x04a5 #define BENQ_PRODUCT_H10 0x4068 @@ -572,6 +573,7 @@ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0073, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_AC8710, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_AC2726, 0xff, 0xff, 0xff) }, { USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_H10) }, { USB_DEVICE(DLINK_VENDOR_ID, DLINK_PRODUCT_DWM_652) }, { USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H21_4512) }, diff -Naur -X linux-2.6.31-rc8-tty.current/Documentation/dontdiff linux-2.6.31-rc8-tty.current/drivers/usb/serial/pl2303.c linux-2.6.31-rc8-usb.current/drivers/usb/serial/pl2303.c --- linux-2.6.31-rc8-tty.current/drivers/usb/serial/pl2303.c 2009-08-28 08:39:00.000000000 -0700 +++ linux-2.6.31-rc8-usb.current/drivers/usb/serial/pl2303.c 2009-09-03 12:01:35.000000000 -0700 @@ -96,6 +96,7 @@ { USB_DEVICE(HP_VENDOR_ID, HP_LD220_PRODUCT_ID) }, { USB_DEVICE(CRESSI_VENDOR_ID, CRESSI_EDY_PRODUCT_ID) }, { USB_DEVICE(SONY_VENDOR_ID, SONY_QN3USB_PRODUCT_ID) }, + { USB_DEVICE(SANWA_VENDOR_ID, SANWA_PRODUCT_ID) }, { } /* Terminating entry */ }; diff -Naur -X linux-2.6.31-rc8-tty.current/Documentation/dontdiff linux-2.6.31-rc8-tty.current/drivers/usb/serial/pl2303.h linux-2.6.31-rc8-usb.current/drivers/usb/serial/pl2303.h --- linux-2.6.31-rc8-tty.current/drivers/usb/serial/pl2303.h 2009-08-28 08:39:00.000000000 -0700 +++ linux-2.6.31-rc8-usb.current/drivers/usb/serial/pl2303.h 2009-09-03 12:01:35.000000000 -0700 @@ -130,3 +130,7 @@ /* Sony, USB data cable for CMD-Jxx mobile phones */ #define SONY_VENDOR_ID 0x054c #define SONY_QN3USB_PRODUCT_ID 0x0437 + +/* Sanwa KB-USB2 multimeter cable (ID: 11ad:0001) */ +#define SANWA_VENDOR_ID 0x11ad +#define SANWA_PRODUCT_ID 0x0001 diff -Naur -X linux-2.6.31-rc8-tty.current/Documentation/dontdiff linux-2.6.31-rc8-tty.current/drivers/usb/storage/onetouch.c linux-2.6.31-rc8-usb.current/drivers/usb/storage/onetouch.c --- linux-2.6.31-rc8-tty.current/drivers/usb/storage/onetouch.c 2009-06-15 12:15:47.000000000 -0700 +++ linux-2.6.31-rc8-usb.current/drivers/usb/storage/onetouch.c 2009-09-03 12:01:35.000000000 -0700 @@ -163,7 +163,7 @@ usb_kill_urb(onetouch->irq); break; case US_RESUME: - if (usb_submit_urb(onetouch->irq, GFP_KERNEL) != 0) + if (usb_submit_urb(onetouch->irq, GFP_NOIO) != 0) dev_err(&onetouch->irq->dev->dev, "usb_submit_urb failed\n"); break;