Lines Matching full:xhci
3 * xHCI host controller driver
16 #include "xhci.h"
17 #include "xhci-trace.h"
35 static int xhci_create_usb3x_bos_desc(struct xhci_hcd *xhci, char *buf, in xhci_create_usb3x_bos_desc() argument
60 for (i = 0; i < xhci->num_port_caps; i++) { in xhci_create_usb3x_bos_desc()
61 u8 major = xhci->port_caps[i].maj_rev; in xhci_create_usb3x_bos_desc()
62 u8 minor = xhci->port_caps[i].min_rev; in xhci_create_usb3x_bos_desc()
67 port_cap = &xhci->port_caps[i]; in xhci_create_usb3x_bos_desc()
111 reg = readl(&xhci->cap_regs->hcc_params); in xhci_create_usb3x_bos_desc()
115 if ((xhci->quirks & XHCI_LPM_SUPPORT)) { in xhci_create_usb3x_bos_desc()
116 reg = readl(&xhci->cap_regs->hcs_params3); in xhci_create_usb3x_bos_desc()
255 static void xhci_common_hub_descriptor(struct xhci_hcd *xhci, in xhci_common_hub_descriptor() argument
265 if (HCC_PPC(xhci->hcc_params)) in xhci_common_hub_descriptor()
278 static void xhci_usb2_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci, in xhci_usb2_hub_descriptor() argument
288 rhub = &xhci->usb2_rhub; in xhci_usb2_hub_descriptor()
290 xhci_common_hub_descriptor(xhci, desc, ports); in xhci_usb2_hub_descriptor()
294 desc->bPwrOn2PwrGood = 10; /* xhci section 5.4.8 says 20ms */ in xhci_usb2_hub_descriptor()
333 static void xhci_usb3_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci, in xhci_usb3_hub_descriptor() argument
342 rhub = &xhci->usb3_rhub; in xhci_usb3_hub_descriptor()
344 xhci_common_hub_descriptor(xhci, desc, ports); in xhci_usb3_hub_descriptor()
366 static void xhci_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci, in xhci_hub_descriptor() argument
371 xhci_usb3_hub_descriptor(hcd, xhci, desc); in xhci_hub_descriptor()
373 xhci_usb2_hub_descriptor(hcd, xhci, desc); in xhci_hub_descriptor()
457 static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend) in xhci_stop_device() argument
466 virt_dev = xhci->devs[slot_id]; in xhci_stop_device()
472 cmd = xhci_alloc_command(xhci, true, GFP_NOIO); in xhci_stop_device()
476 spin_lock_irqsave(&xhci->lock, flags); in xhci_stop_device()
482 ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->out_ctx, i); in xhci_stop_device()
488 command = xhci_alloc_command(xhci, false, GFP_NOWAIT); in xhci_stop_device()
490 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_stop_device()
495 ret = xhci_queue_stop_endpoint(xhci, command, slot_id, in xhci_stop_device()
498 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_stop_device()
499 xhci_free_command(xhci, command); in xhci_stop_device()
504 ret = xhci_queue_stop_endpoint(xhci, cmd, slot_id, 0, suspend); in xhci_stop_device()
506 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_stop_device()
510 xhci_ring_cmd_db(xhci); in xhci_stop_device()
511 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_stop_device()
518 xhci_warn(xhci, "Timeout while waiting for stop endpoint command\n"); in xhci_stop_device()
523 xhci_free_command(xhci, cmd); in xhci_stop_device()
530 void xhci_ring_device(struct xhci_hcd *xhci, int slot_id) in xhci_ring_device() argument
536 ep = &xhci->devs[slot_id]->eps[i]; in xhci_ring_device()
540 xhci_ring_ep_doorbell(xhci, slot_id, i, s); in xhci_ring_device()
542 xhci_ring_ep_doorbell(xhci, slot_id, i, 0); in xhci_ring_device()
549 static void xhci_disable_port(struct xhci_hcd *xhci, struct xhci_port *port) in xhci_disable_port() argument
558 xhci_dbg(xhci, "Ignoring request to disable SuperSpeed port.\n"); in xhci_disable_port()
562 if (xhci->quirks & XHCI_BROKEN_PORT_PED) { in xhci_disable_port()
563 xhci_dbg(xhci, in xhci_disable_port()
575 xhci_dbg(xhci, "disable port %d-%d, portsc: 0x%x\n", in xhci_disable_port()
579 static void xhci_clear_port_change_bit(struct xhci_hcd *xhci, u16 wValue, in xhci_clear_port_change_bit() argument
626 xhci_dbg(xhci, "clear port%d %s change, portsc: 0x%x\n", in xhci_clear_port_change_bit()
632 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_get_rhub() local
635 return &xhci->usb3_rhub; in xhci_get_rhub()
636 return &xhci->usb2_rhub; in xhci_get_rhub()
640 * xhci_set_port_power() must be called with xhci->lock held.
644 static void xhci_set_port_power(struct xhci_hcd *xhci, struct xhci_port *port, in xhci_set_port_power() argument
646 __must_hold(&xhci->lock) in xhci_set_port_power()
654 xhci_dbg(xhci, "set port power %d-%d %s, portsc: 0x%x\n", in xhci_set_port_power()
668 spin_unlock_irqrestore(&xhci->lock, *flags); in xhci_set_port_power()
674 spin_lock_irqsave(&xhci->lock, *flags); in xhci_set_port_power()
677 static void xhci_port_set_test_mode(struct xhci_hcd *xhci, in xhci_port_set_test_mode() argument
683 /* xhci only supports test mode for usb2 ports */ in xhci_port_set_test_mode()
684 port = xhci->usb2_rhub.ports[wIndex]; in xhci_port_set_test_mode()
688 xhci->test_mode = test_mode; in xhci_port_set_test_mode()
690 xhci_start(xhci); in xhci_port_set_test_mode()
693 static int xhci_enter_test_mode(struct xhci_hcd *xhci, in xhci_enter_test_mode() argument
695 __must_hold(&xhci->lock) in xhci_enter_test_mode()
700 xhci_dbg(xhci, "Disable all slots\n"); in xhci_enter_test_mode()
701 spin_unlock_irqrestore(&xhci->lock, *flags); in xhci_enter_test_mode()
702 for (i = 1; i <= HCS_MAX_SLOTS(xhci->hcs_params1); i++) { in xhci_enter_test_mode()
703 if (!xhci->devs[i]) in xhci_enter_test_mode()
706 retval = xhci_disable_slot(xhci, i); in xhci_enter_test_mode()
707 xhci_free_virt_device(xhci, i); in xhci_enter_test_mode()
709 xhci_err(xhci, "Failed to disable slot %d, %d. Enter test mode anyway\n", in xhci_enter_test_mode()
712 spin_lock_irqsave(&xhci->lock, *flags); in xhci_enter_test_mode()
714 xhci_dbg(xhci, "Disable all port (PP = 0)\n"); in xhci_enter_test_mode()
716 for (i = 0; i < xhci->usb3_rhub.num_ports; i++) in xhci_enter_test_mode()
717 xhci_set_port_power(xhci, xhci->usb3_rhub.ports[i], false, flags); in xhci_enter_test_mode()
719 for (i = 0; i < xhci->usb2_rhub.num_ports; i++) in xhci_enter_test_mode()
720 xhci_set_port_power(xhci, xhci->usb2_rhub.ports[i], false, flags); in xhci_enter_test_mode()
722 xhci_dbg(xhci, "Stop controller\n"); in xhci_enter_test_mode()
723 retval = xhci_halt(xhci); in xhci_enter_test_mode()
727 pm_runtime_forbid(xhci_to_hcd(xhci)->self.controller); in xhci_enter_test_mode()
730 xhci_dbg(xhci, "Enter Test Mode: %d, Port_id=%d\n", in xhci_enter_test_mode()
732 xhci_port_set_test_mode(xhci, test_mode, wIndex); in xhci_enter_test_mode()
736 static int xhci_exit_test_mode(struct xhci_hcd *xhci) in xhci_exit_test_mode() argument
740 if (!xhci->test_mode) { in xhci_exit_test_mode()
741 xhci_err(xhci, "Not in test mode, do nothing.\n"); in xhci_exit_test_mode()
744 if (xhci->test_mode == USB_TEST_FORCE_ENABLE && in xhci_exit_test_mode()
745 !(xhci->xhc_state & XHCI_STATE_HALTED)) { in xhci_exit_test_mode()
746 retval = xhci_halt(xhci); in xhci_exit_test_mode()
750 pm_runtime_allow(xhci_to_hcd(xhci)->self.controller); in xhci_exit_test_mode()
751 xhci->test_mode = 0; in xhci_exit_test_mode()
752 return xhci_reset(xhci, XHCI_RESET_SHORT_USEC); in xhci_exit_test_mode()
757 * @xhci: xhci host controller
770 enum usb_link_tunnel_mode xhci_port_is_tunneled(struct xhci_hcd *xhci, in xhci_port_is_tunneled() argument
776 base = &xhci->cap_regs->hc_capbase; in xhci_port_is_tunneled()
791 void xhci_set_link_state(struct xhci_hcd *xhci, struct xhci_port *port, in xhci_set_link_state() argument
803 xhci_dbg(xhci, "Set port %d-%d link state, portsc: 0x%x, write 0x%x", in xhci_set_link_state()
808 static void xhci_set_remote_wake_mask(struct xhci_hcd *xhci, in xhci_set_remote_wake_mask() argument
835 void xhci_test_and_clear_bit(struct xhci_hcd *xhci, struct xhci_port *port, in xhci_test_and_clear_bit() argument
849 static void xhci_hub_report_usb3_link_state(struct xhci_hcd *xhci, in xhci_hub_report_usb3_link_state() argument
876 * Resume state is an xHCI internal state. Do not report it to in xhci_hub_report_usb3_link_state()
893 if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && in xhci_hub_report_usb3_link_state()
909 static void xhci_del_comp_mod_timer(struct xhci_hcd *xhci, u32 status, in xhci_del_comp_mod_timer() argument
912 u32 all_ports_seen_u0 = ((1 << xhci->usb3_rhub.num_ports) - 1); in xhci_del_comp_mod_timer()
915 if (!(xhci->quirks & XHCI_COMP_MODE_QUIRK)) in xhci_del_comp_mod_timer()
918 if ((xhci->port_status_u0 != all_ports_seen_u0) && port_in_u0) { in xhci_del_comp_mod_timer()
919 xhci->port_status_u0 |= 1 << wIndex; in xhci_del_comp_mod_timer()
920 if (xhci->port_status_u0 == all_ports_seen_u0) { in xhci_del_comp_mod_timer()
921 del_timer_sync(&xhci->comp_mode_recovery_timer); in xhci_del_comp_mod_timer()
922 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_del_comp_mod_timer()
924 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_del_comp_mod_timer()
935 struct xhci_hcd *xhci; in xhci_handle_usb2_port_link_resume() local
941 xhci = hcd_to_xhci(hcd); in xhci_handle_usb2_port_link_resume()
973 xhci_dbg(xhci, "resume USB2 port %d-%d\n", in xhci_handle_usb2_port_link_resume()
982 xhci_test_and_clear_bit(xhci, port, PORT_PLC); in xhci_handle_usb2_port_link_resume()
983 xhci_set_link_state(xhci, port, XDEV_U0); in xhci_handle_usb2_port_link_resume()
985 spin_unlock_irqrestore(&xhci->lock, *flags); in xhci_handle_usb2_port_link_resume()
989 spin_lock_irqsave(&xhci->lock, *flags); in xhci_handle_usb2_port_link_resume()
993 xhci_dbg(xhci, "slot_id is zero\n"); in xhci_handle_usb2_port_link_resume()
996 xhci_ring_device(xhci, port->slot_id); in xhci_handle_usb2_port_link_resume()
1000 xhci_warn(xhci, "Port resume timed out, port %d-%d: 0x%x\n", in xhci_handle_usb2_port_link_resume()
1038 struct xhci_hcd *xhci; in xhci_get_usb3_port_status() local
1044 xhci = hcd_to_xhci(port->rhub->hcd); in xhci_get_usb3_port_status()
1053 * handled by xhci driver. Reporting PLC to usbcore may in xhci_get_usb3_port_status()
1081 xhci_hub_report_usb3_link_state(xhci, status, portsc); in xhci_get_usb3_port_status()
1082 xhci_del_comp_mod_timer(xhci, portsc, portnum); in xhci_get_usb3_port_status()
1140 * Converts a raw xHCI port status into the format that external USB 2.0 or USB
1147 * - Drop and reacquire the xHCI lock, in order to wait for port resume.
1153 __releases(&xhci->lock) in xhci_get_port_status()
1154 __acquires(&xhci->lock) in xhci_get_port_status()
1201 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_hub_control() local
1222 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1236 xhci_dbg(xhci, "Wrong hub descriptor type for " in xhci_hub_control()
1240 xhci_hub_descriptor(hcd, xhci, in xhci_hub_control()
1250 retval = xhci_create_usb3x_bos_desc(xhci, buf, wLength); in xhci_hub_control()
1251 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1261 xhci_hc_died(xhci); in xhci_hub_control()
1271 xhci_dbg(xhci, "Get port status %d-%d read: 0x%x, return 0x%x", in xhci_hub_control()
1280 xhci_err(xhci, "get ext port status invalid parameter\n"); in xhci_hub_control()
1307 xhci_hc_died(xhci); in xhci_hub_control()
1318 xhci_set_link_state(xhci, port, XDEV_U0); in xhci_hub_control()
1319 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1321 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1330 xhci_warn(xhci, "USB core suspending port %d-%d not in U0/U1/U2\n", in xhci_hub_control()
1336 xhci_warn(xhci, "slot_id is zero\n"); in xhci_hub_control()
1340 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1341 xhci_stop_device(xhci, port->slot_id, 1); in xhci_hub_control()
1342 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1344 xhci_set_link_state(xhci, port, XDEV_U3); in xhci_hub_control()
1346 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1348 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1357 xhci_dbg(xhci, "Disable port %d-%d\n", in xhci_hub_control()
1374 xhci_dbg(xhci, "Enable port %d-%d\n", in xhci_hub_control()
1376 xhci_set_link_state(xhci, port, link_state); in xhci_hub_control()
1382 * For xHCI 1.1 according to section 4.19.1.2.4.1 a in xhci_hub_control()
1396 if (!HCC2_CTC(xhci->hcc_params2)) { in xhci_hub_control()
1397 xhci_dbg(xhci, "CTC flag is 0, port already supports entering compliance mode\n"); in xhci_hub_control()
1402 xhci_warn(xhci, "Can't set compliance mode when port is connected\n"); in xhci_hub_control()
1406 xhci_dbg(xhci, "Enable compliance mode transition for port %d-%d\n", in xhci_hub_control()
1408 xhci_set_link_state(xhci, port, link_state); in xhci_hub_control()
1420 xhci_warn(xhci, "Cannot set port %d-%d link state %d\n", in xhci_hub_control()
1446 xhci_set_link_state(xhci, port, USB_SS_PORT_LS_U0); in xhci_hub_control()
1452 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1455 xhci_dbg(xhci, "missing U0 port change event for port %d-%d\n", in xhci_hub_control()
1457 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1467 spin_unlock_irqrestore(&xhci->lock, in xhci_hub_control()
1469 xhci_stop_device(xhci, port->slot_id, 1); in xhci_hub_control()
1470 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1472 xhci_set_link_state(xhci, port, USB_SS_PORT_LS_U3); in xhci_hub_control()
1473 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1480 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1492 xhci_set_port_power(xhci, port, true, &flags); in xhci_hub_control()
1499 xhci_dbg(xhci, "set port reset, actual port %d-%d status = 0x%x\n", in xhci_hub_control()
1503 xhci_set_remote_wake_mask(xhci, port, wake_mask); in xhci_hub_control()
1505 xhci_dbg(xhci, "set port remote wake mask, actual port %d-%d status = 0x%x\n", in xhci_hub_control()
1536 retval = xhci_enter_test_mode(xhci, test_mode, wIndex, in xhci_hub_control()
1554 xhci_hc_died(xhci); in xhci_hub_control()
1563 xhci_dbg(xhci, "clear USB_PORT_FEAT_SUSPEND\n"); in xhci_hub_control()
1564 xhci_dbg(xhci, "PORTSC %04x\n", temp); in xhci_hub_control()
1573 xhci_set_link_state(xhci, port, XDEV_RESUME); in xhci_hub_control()
1574 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1576 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1577 xhci_set_link_state(xhci, port, XDEV_U0); in xhci_hub_control()
1584 xhci_dbg(xhci, "slot_id is zero\n"); in xhci_hub_control()
1587 xhci_ring_device(xhci, port->slot_id); in xhci_hub_control()
1599 xhci_clear_port_change_bit(xhci, wValue, wIndex, in xhci_hub_control()
1603 xhci_disable_port(xhci, port); in xhci_hub_control()
1606 xhci_set_port_power(xhci, port, false, &flags); in xhci_hub_control()
1609 retval = xhci_exit_test_mode(xhci); in xhci_hub_control()
1620 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1639 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_hub_status_data() local
1659 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_status_data()
1667 if (xhci->run_graceperiod) { in xhci_hub_status_data()
1668 if (time_before(jiffies, xhci->run_graceperiod)) in xhci_hub_status_data()
1671 xhci->run_graceperiod = 0; in xhci_hub_status_data()
1680 xhci_hc_died(xhci); in xhci_hub_status_data()
1699 xhci_dbg(xhci, "%s: stopping usb%d port polling\n", in xhci_hub_status_data()
1703 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_status_data()
1711 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_bus_suspend() local
1726 spin_lock_irqsave(&xhci->lock, flags); in xhci_bus_suspend()
1731 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_suspend()
1732 xhci_dbg(xhci, "usb%d bus suspend to fail because a port is resuming\n", in xhci_bus_suspend()
1757 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_suspend()
1759 spin_lock_irqsave(&xhci->lock, flags); in xhci_bus_suspend()
1760 xhci_dbg(xhci, "port %d-%d polling in bus suspend, waiting\n", in xhci_bus_suspend()
1767 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_suspend()
1768 xhci_dbg(xhci, "Bus suspend bailout, port over-current detected\n"); in xhci_bus_suspend()
1775 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_suspend()
1776 xhci_dbg(xhci, "Bus suspend bailout, port connect change\n"); in xhci_bus_suspend()
1779 xhci_dbg(xhci, "port %d-%d not suspended\n", in xhci_bus_suspend()
1798 if ((xhci->quirks & XHCI_U2_DISABLE_WAKE) && in xhci_bus_suspend()
1820 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_suspend()
1821 xhci_stop_device(xhci, slot_id, 1); in xhci_bus_suspend()
1822 spin_lock_irqsave(&xhci->lock, flags); in xhci_bus_suspend()
1829 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_suspend()
1867 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_bus_resume() local
1885 spin_lock_irqsave(&xhci->lock, flags); in xhci_bus_resume()
1887 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_resume()
1892 temp = readl(&xhci->op_regs->command); in xhci_bus_resume()
1894 writel(temp, &xhci->op_regs->command); in xhci_bus_resume()
1907 if ((xhci->quirks & XHCI_MISSING_CAS) && in xhci_bus_resume()
1910 xhci_dbg(xhci, "reset stuck port %d-%d\n", in xhci_bus_resume()
1940 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_resume()
1942 spin_lock_irqsave(&xhci->lock, flags); in xhci_bus_resume()
1947 xhci_test_and_clear_bit(xhci, ports[port_index], in xhci_bus_resume()
1949 xhci_set_link_state(xhci, ports[port_index], XDEV_U0); in xhci_bus_resume()
1958 xhci_warn(xhci, "port %d-%d resume PLC timeout\n", in xhci_bus_resume()
1962 xhci_test_and_clear_bit(xhci, ports[port_index], PORT_PLC); in xhci_bus_resume()
1964 xhci_ring_device(xhci, ports[port_index]->slot_id); in xhci_bus_resume()
1966 (void) readl(&xhci->op_regs->command); in xhci_bus_resume()
1970 temp = readl(&xhci->op_regs->command); in xhci_bus_resume()
1972 writel(temp, &xhci->op_regs->command); in xhci_bus_resume()
1973 temp = readl(&xhci->op_regs->command); in xhci_bus_resume()
1975 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_resume()