Lines Matching full:xhci
3 * xHCI host controller driver
17 #include "xhci.h"
18 #include "xhci-trace.h"
36 static int xhci_create_usb3x_bos_desc(struct xhci_hcd *xhci, char *buf, in xhci_create_usb3x_bos_desc() argument
61 for (i = 0; i < xhci->num_port_caps; i++) { in xhci_create_usb3x_bos_desc()
62 u8 major = xhci->port_caps[i].maj_rev; in xhci_create_usb3x_bos_desc()
63 u8 minor = xhci->port_caps[i].min_rev; in xhci_create_usb3x_bos_desc()
68 port_cap = &xhci->port_caps[i]; in xhci_create_usb3x_bos_desc()
112 reg = readl(&xhci->cap_regs->hcc_params); in xhci_create_usb3x_bos_desc()
116 if ((xhci->quirks & XHCI_LPM_SUPPORT)) { in xhci_create_usb3x_bos_desc()
117 reg = readl(&xhci->cap_regs->hcs_params3); in xhci_create_usb3x_bos_desc()
256 static void xhci_common_hub_descriptor(struct xhci_hcd *xhci, in xhci_common_hub_descriptor() argument
266 if (HCC_PPC(xhci->hcc_params)) in xhci_common_hub_descriptor()
279 static void xhci_usb2_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci, in xhci_usb2_hub_descriptor() argument
289 rhub = &xhci->usb2_rhub; in xhci_usb2_hub_descriptor()
291 xhci_common_hub_descriptor(xhci, desc, ports); in xhci_usb2_hub_descriptor()
295 desc->bPwrOn2PwrGood = 10; /* xhci section 5.4.8 says 20ms */ in xhci_usb2_hub_descriptor()
334 static void xhci_usb3_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci, in xhci_usb3_hub_descriptor() argument
343 rhub = &xhci->usb3_rhub; in xhci_usb3_hub_descriptor()
345 xhci_common_hub_descriptor(xhci, desc, ports); in xhci_usb3_hub_descriptor()
367 static void xhci_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci, in xhci_hub_descriptor() argument
372 xhci_usb3_hub_descriptor(hcd, xhci, desc); in xhci_hub_descriptor()
374 xhci_usb2_hub_descriptor(hcd, xhci, desc); in xhci_hub_descriptor()
458 static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend) in xhci_stop_device() argument
467 virt_dev = xhci->devs[slot_id]; in xhci_stop_device()
473 cmd = xhci_alloc_command(xhci, true, GFP_NOIO); in xhci_stop_device()
477 spin_lock_irqsave(&xhci->lock, flags); in xhci_stop_device()
483 ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->out_ctx, i); in xhci_stop_device()
489 command = xhci_alloc_command(xhci, false, GFP_NOWAIT); in xhci_stop_device()
491 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_stop_device()
496 ret = xhci_queue_stop_endpoint(xhci, command, slot_id, in xhci_stop_device()
499 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_stop_device()
500 xhci_free_command(xhci, command); in xhci_stop_device()
505 ret = xhci_queue_stop_endpoint(xhci, cmd, slot_id, 0, suspend); in xhci_stop_device()
507 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_stop_device()
511 xhci_ring_cmd_db(xhci); in xhci_stop_device()
512 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_stop_device()
519 xhci_warn(xhci, "Timeout while waiting for stop endpoint command\n"); in xhci_stop_device()
524 xhci_free_command(xhci, cmd); in xhci_stop_device()
531 void xhci_ring_device(struct xhci_hcd *xhci, int slot_id) in xhci_ring_device() argument
537 ep = &xhci->devs[slot_id]->eps[i]; in xhci_ring_device()
541 xhci_ring_ep_doorbell(xhci, slot_id, i, s); in xhci_ring_device()
543 xhci_ring_ep_doorbell(xhci, slot_id, i, 0); in xhci_ring_device()
550 static void xhci_disable_port(struct xhci_hcd *xhci, struct xhci_port *port) in xhci_disable_port() argument
559 xhci_dbg(xhci, "Ignoring request to disable SuperSpeed port.\n"); in xhci_disable_port()
563 if (xhci->quirks & XHCI_BROKEN_PORT_PED) { in xhci_disable_port()
564 xhci_dbg(xhci, in xhci_disable_port()
576 xhci_dbg(xhci, "disable port %d-%d, portsc: 0x%x\n", in xhci_disable_port()
580 static void xhci_clear_port_change_bit(struct xhci_hcd *xhci, u16 wValue, in xhci_clear_port_change_bit() argument
627 xhci_dbg(xhci, "clear port%d %s change, portsc: 0x%x\n", in xhci_clear_port_change_bit()
633 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_get_rhub() local
636 return &xhci->usb3_rhub; in xhci_get_rhub()
637 return &xhci->usb2_rhub; in xhci_get_rhub()
641 * xhci_set_port_power() must be called with xhci->lock held.
645 static void xhci_set_port_power(struct xhci_hcd *xhci, struct xhci_port *port, in xhci_set_port_power() argument
647 __must_hold(&xhci->lock) in xhci_set_port_power()
655 xhci_dbg(xhci, "set port power %d-%d %s, portsc: 0x%x\n", in xhci_set_port_power()
669 spin_unlock_irqrestore(&xhci->lock, *flags); in xhci_set_port_power()
675 spin_lock_irqsave(&xhci->lock, *flags); in xhci_set_port_power()
678 static void xhci_port_set_test_mode(struct xhci_hcd *xhci, in xhci_port_set_test_mode() argument
684 /* xhci only supports test mode for usb2 ports */ in xhci_port_set_test_mode()
685 port = xhci->usb2_rhub.ports[wIndex]; in xhci_port_set_test_mode()
689 xhci->test_mode = test_mode; in xhci_port_set_test_mode()
691 xhci_start(xhci); in xhci_port_set_test_mode()
694 static int xhci_enter_test_mode(struct xhci_hcd *xhci, in xhci_enter_test_mode() argument
696 __must_hold(&xhci->lock) in xhci_enter_test_mode()
701 xhci_dbg(xhci, "Disable all slots\n"); in xhci_enter_test_mode()
702 spin_unlock_irqrestore(&xhci->lock, *flags); in xhci_enter_test_mode()
703 for (i = 1; i <= HCS_MAX_SLOTS(xhci->hcs_params1); i++) { in xhci_enter_test_mode()
704 if (!xhci->devs[i]) in xhci_enter_test_mode()
707 retval = xhci_disable_and_free_slot(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
778 hcd = xhci_to_hcd(xhci); in xhci_port_is_tunneled()
783 base = &xhci->cap_regs->hc_capbase; in xhci_port_is_tunneled()
798 void xhci_set_link_state(struct xhci_hcd *xhci, struct xhci_port *port, in xhci_set_link_state() argument
810 xhci_dbg(xhci, "Set port %d-%d link state, portsc: 0x%x, write 0x%x", in xhci_set_link_state()
815 static void xhci_set_remote_wake_mask(struct xhci_hcd *xhci, in xhci_set_remote_wake_mask() argument
842 void xhci_test_and_clear_bit(struct xhci_hcd *xhci, struct xhci_port *port, in xhci_test_and_clear_bit() argument
856 static void xhci_hub_report_usb3_link_state(struct xhci_hcd *xhci, in xhci_hub_report_usb3_link_state() argument
883 * Resume state is an xHCI internal state. Do not report it to in xhci_hub_report_usb3_link_state()
900 if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && in xhci_hub_report_usb3_link_state()
916 static void xhci_del_comp_mod_timer(struct xhci_hcd *xhci, u32 status, in xhci_del_comp_mod_timer() argument
919 u32 all_ports_seen_u0 = ((1 << xhci->usb3_rhub.num_ports) - 1); in xhci_del_comp_mod_timer()
922 if (!(xhci->quirks & XHCI_COMP_MODE_QUIRK)) in xhci_del_comp_mod_timer()
925 if ((xhci->port_status_u0 != all_ports_seen_u0) && port_in_u0) { in xhci_del_comp_mod_timer()
926 xhci->port_status_u0 |= 1 << wIndex; in xhci_del_comp_mod_timer()
927 if (xhci->port_status_u0 == all_ports_seen_u0) { in xhci_del_comp_mod_timer()
928 timer_delete_sync(&xhci->comp_mode_recovery_timer); in xhci_del_comp_mod_timer()
929 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_del_comp_mod_timer()
931 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_del_comp_mod_timer()
942 struct xhci_hcd *xhci; in xhci_handle_usb2_port_link_resume() local
948 xhci = hcd_to_xhci(hcd); in xhci_handle_usb2_port_link_resume()
980 xhci_dbg(xhci, "resume USB2 port %d-%d\n", in xhci_handle_usb2_port_link_resume()
989 xhci_test_and_clear_bit(xhci, port, PORT_PLC); in xhci_handle_usb2_port_link_resume()
990 xhci_set_link_state(xhci, port, XDEV_U0); in xhci_handle_usb2_port_link_resume()
992 spin_unlock_irqrestore(&xhci->lock, *flags); in xhci_handle_usb2_port_link_resume()
996 spin_lock_irqsave(&xhci->lock, *flags); in xhci_handle_usb2_port_link_resume()
1000 xhci_dbg(xhci, "slot_id is zero\n"); in xhci_handle_usb2_port_link_resume()
1003 xhci_ring_device(xhci, port->slot_id); in xhci_handle_usb2_port_link_resume()
1007 xhci_warn(xhci, "Port resume timed out, port %d-%d: 0x%x\n", in xhci_handle_usb2_port_link_resume()
1045 struct xhci_hcd *xhci; in xhci_get_usb3_port_status() local
1051 xhci = hcd_to_xhci(port->rhub->hcd); in xhci_get_usb3_port_status()
1060 * handled by xhci driver. Reporting PLC to usbcore may in xhci_get_usb3_port_status()
1088 xhci_hub_report_usb3_link_state(xhci, status, portsc); in xhci_get_usb3_port_status()
1089 xhci_del_comp_mod_timer(xhci, portsc, portnum); in xhci_get_usb3_port_status()
1147 * Converts a raw xHCI port status into the format that external USB 2.0 or USB
1154 * - Drop and reacquire the xHCI lock, in order to wait for port resume.
1160 __releases(&xhci->lock) in xhci_get_port_status()
1161 __acquires(&xhci->lock) in xhci_get_port_status()
1208 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_hub_control() local
1229 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1243 xhci_dbg(xhci, "Wrong hub descriptor type for " in xhci_hub_control()
1247 xhci_hub_descriptor(hcd, xhci, in xhci_hub_control()
1257 retval = xhci_create_usb3x_bos_desc(xhci, buf, wLength); in xhci_hub_control()
1258 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1268 xhci_hc_died(xhci); in xhci_hub_control()
1278 xhci_dbg(xhci, "Get port status %d-%d read: 0x%x, return 0x%x", in xhci_hub_control()
1287 xhci_err(xhci, "get ext port status invalid parameter\n"); in xhci_hub_control()
1314 xhci_hc_died(xhci); in xhci_hub_control()
1325 xhci_set_link_state(xhci, port, XDEV_U0); in xhci_hub_control()
1326 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1328 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1337 xhci_warn(xhci, "USB core suspending port %d-%d not in U0/U1/U2\n", in xhci_hub_control()
1343 xhci_warn(xhci, "slot_id is zero\n"); in xhci_hub_control()
1347 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1348 xhci_stop_device(xhci, port->slot_id, 1); in xhci_hub_control()
1349 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1351 xhci_set_link_state(xhci, port, XDEV_U3); in xhci_hub_control()
1353 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1355 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1364 xhci_dbg(xhci, "Disable port %d-%d\n", in xhci_hub_control()
1381 xhci_dbg(xhci, "Enable port %d-%d\n", in xhci_hub_control()
1383 xhci_set_link_state(xhci, port, link_state); in xhci_hub_control()
1389 * For xHCI 1.1 according to section 4.19.1.2.4.1 a in xhci_hub_control()
1403 if (!HCC2_CTC(xhci->hcc_params2)) { in xhci_hub_control()
1404 xhci_dbg(xhci, "CTC flag is 0, port already supports entering compliance mode\n"); in xhci_hub_control()
1409 xhci_warn(xhci, "Can't set compliance mode when port is connected\n"); in xhci_hub_control()
1413 xhci_dbg(xhci, "Enable compliance mode transition for port %d-%d\n", in xhci_hub_control()
1415 xhci_set_link_state(xhci, port, link_state); in xhci_hub_control()
1427 xhci_warn(xhci, "Cannot set port %d-%d link state %d\n", in xhci_hub_control()
1453 xhci_set_link_state(xhci, port, USB_SS_PORT_LS_U0); in xhci_hub_control()
1459 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1462 xhci_dbg(xhci, "missing U0 port change event for port %d-%d\n", in xhci_hub_control()
1464 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1474 spin_unlock_irqrestore(&xhci->lock, in xhci_hub_control()
1476 xhci_stop_device(xhci, port->slot_id, 1); in xhci_hub_control()
1477 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1479 xhci_set_link_state(xhci, port, USB_SS_PORT_LS_U3); in xhci_hub_control()
1480 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1487 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1499 xhci_set_port_power(xhci, port, true, &flags); in xhci_hub_control()
1506 xhci_dbg(xhci, "set port reset, actual port %d-%d status = 0x%x\n", in xhci_hub_control()
1510 xhci_set_remote_wake_mask(xhci, port, wake_mask); in xhci_hub_control()
1512 xhci_dbg(xhci, "set port remote wake mask, actual port %d-%d status = 0x%x\n", in xhci_hub_control()
1543 retval = xhci_enter_test_mode(xhci, test_mode, wIndex, in xhci_hub_control()
1561 xhci_hc_died(xhci); in xhci_hub_control()
1570 xhci_dbg(xhci, "clear USB_PORT_FEAT_SUSPEND\n"); in xhci_hub_control()
1571 xhci_dbg(xhci, "PORTSC %04x\n", temp); in xhci_hub_control()
1580 xhci_set_link_state(xhci, port, XDEV_RESUME); in xhci_hub_control()
1581 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1583 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1584 xhci_set_link_state(xhci, port, XDEV_U0); in xhci_hub_control()
1591 xhci_dbg(xhci, "slot_id is zero\n"); in xhci_hub_control()
1594 xhci_ring_device(xhci, port->slot_id); in xhci_hub_control()
1606 xhci_clear_port_change_bit(xhci, wValue, wIndex, in xhci_hub_control()
1610 xhci_disable_port(xhci, port); in xhci_hub_control()
1613 xhci_set_port_power(xhci, port, false, &flags); in xhci_hub_control()
1616 retval = xhci_exit_test_mode(xhci); in xhci_hub_control()
1627 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1646 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_hub_status_data() local
1666 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_status_data()
1674 if (xhci->run_graceperiod) { in xhci_hub_status_data()
1675 if (time_before(jiffies, xhci->run_graceperiod)) in xhci_hub_status_data()
1678 xhci->run_graceperiod = 0; in xhci_hub_status_data()
1687 xhci_hc_died(xhci); in xhci_hub_status_data()
1706 xhci_dbg(xhci, "%s: stopping usb%d port polling\n", in xhci_hub_status_data()
1710 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_status_data()
1718 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_bus_suspend() local
1733 spin_lock_irqsave(&xhci->lock, flags); in xhci_bus_suspend()
1738 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_suspend()
1739 xhci_dbg(xhci, "usb%d bus suspend to fail because a port is resuming\n", in xhci_bus_suspend()
1764 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_suspend()
1766 spin_lock_irqsave(&xhci->lock, flags); in xhci_bus_suspend()
1767 xhci_dbg(xhci, "port %d-%d polling in bus suspend, waiting\n", in xhci_bus_suspend()
1774 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_suspend()
1775 xhci_dbg(xhci, "Bus suspend bailout, port over-current detected\n"); in xhci_bus_suspend()
1782 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_suspend()
1783 xhci_dbg(xhci, "Bus suspend bailout, port connect change\n"); in xhci_bus_suspend()
1786 xhci_dbg(xhci, "port %d-%d not suspended\n", in xhci_bus_suspend()
1805 if ((xhci->quirks & XHCI_U2_DISABLE_WAKE) && in xhci_bus_suspend()
1827 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_suspend()
1828 xhci_stop_device(xhci, slot_id, 1); in xhci_bus_suspend()
1829 spin_lock_irqsave(&xhci->lock, flags); in xhci_bus_suspend()
1836 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_suspend()
1874 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_bus_resume() local
1893 spin_lock_irqsave(&xhci->lock, flags); in xhci_bus_resume()
1895 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_resume()
1909 xhci_disable_interrupter(xhci, xhci->interrupters[0]); in xhci_bus_resume()
1918 if ((xhci->quirks & XHCI_MISSING_CAS) && in xhci_bus_resume()
1921 xhci_dbg(xhci, "reset stuck port %d-%d\n", in xhci_bus_resume()
1951 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_resume()
1953 spin_lock_irqsave(&xhci->lock, flags); in xhci_bus_resume()
1958 xhci_test_and_clear_bit(xhci, ports[port_index], in xhci_bus_resume()
1960 xhci_set_link_state(xhci, ports[port_index], XDEV_U0); in xhci_bus_resume()
1969 xhci_warn(xhci, "port %d-%d resume PLC timeout\n", in xhci_bus_resume()
1973 xhci_test_and_clear_bit(xhci, ports[port_index], PORT_PLC); in xhci_bus_resume()
1975 xhci_ring_device(xhci, ports[port_index]->slot_id); in xhci_bus_resume()
1977 (void) readl(&xhci->op_regs->command); in xhci_bus_resume()
1982 xhci_enable_interrupter(xhci->interrupters[0]); in xhci_bus_resume()
1984 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_resume()