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()
454 * @xhci: pointer to xhci structure
460 int xhci_find_slot_id_by_port(struct usb_hcd *hcd, struct xhci_hcd *xhci, in xhci_find_slot_id_by_port() argument
469 if (!xhci->devs[i] || !xhci->devs[i]->udev) in xhci_find_slot_id_by_port()
471 speed = xhci->devs[i]->udev->speed; in xhci_find_slot_id_by_port()
473 && xhci->devs[i]->fake_port == port) { in xhci_find_slot_id_by_port()
489 static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend) in xhci_stop_device() argument
498 virt_dev = xhci->devs[slot_id]; in xhci_stop_device()
504 cmd = xhci_alloc_command(xhci, true, GFP_NOIO); in xhci_stop_device()
508 spin_lock_irqsave(&xhci->lock, flags); in xhci_stop_device()
514 ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->out_ctx, i); in xhci_stop_device()
520 command = xhci_alloc_command(xhci, false, GFP_NOWAIT); in xhci_stop_device()
522 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_stop_device()
527 ret = xhci_queue_stop_endpoint(xhci, command, slot_id, in xhci_stop_device()
530 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_stop_device()
531 xhci_free_command(xhci, command); in xhci_stop_device()
536 ret = xhci_queue_stop_endpoint(xhci, cmd, slot_id, 0, suspend); in xhci_stop_device()
538 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_stop_device()
542 xhci_ring_cmd_db(xhci); in xhci_stop_device()
543 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_stop_device()
550 xhci_warn(xhci, "Timeout while waiting for stop endpoint command\n"); in xhci_stop_device()
555 xhci_free_command(xhci, cmd); in xhci_stop_device()
562 void xhci_ring_device(struct xhci_hcd *xhci, int slot_id) in xhci_ring_device() argument
568 ep = &xhci->devs[slot_id]->eps[i]; in xhci_ring_device()
572 xhci_ring_ep_doorbell(xhci, slot_id, i, s); in xhci_ring_device()
574 xhci_ring_ep_doorbell(xhci, slot_id, i, 0); in xhci_ring_device()
581 static void xhci_disable_port(struct xhci_hcd *xhci, struct xhci_port *port) in xhci_disable_port() argument
590 xhci_dbg(xhci, "Ignoring request to disable SuperSpeed port.\n"); in xhci_disable_port()
594 if (xhci->quirks & XHCI_BROKEN_PORT_PED) { in xhci_disable_port()
595 xhci_dbg(xhci, in xhci_disable_port()
607 xhci_dbg(xhci, "disable port %d-%d, portsc: 0x%x\n", in xhci_disable_port()
611 static void xhci_clear_port_change_bit(struct xhci_hcd *xhci, u16 wValue, in xhci_clear_port_change_bit() argument
658 xhci_dbg(xhci, "clear port%d %s change, portsc: 0x%x\n", in xhci_clear_port_change_bit()
664 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_get_rhub() local
667 return &xhci->usb3_rhub; in xhci_get_rhub()
668 return &xhci->usb2_rhub; in xhci_get_rhub()
672 * xhci_set_port_power() must be called with xhci->lock held.
676 static void xhci_set_port_power(struct xhci_hcd *xhci, struct xhci_port *port, in xhci_set_port_power() argument
678 __must_hold(&xhci->lock) in xhci_set_port_power()
686 xhci_dbg(xhci, "set port power %d-%d %s, portsc: 0x%x\n", in xhci_set_port_power()
700 spin_unlock_irqrestore(&xhci->lock, *flags); in xhci_set_port_power()
706 spin_lock_irqsave(&xhci->lock, *flags); in xhci_set_port_power()
709 static void xhci_port_set_test_mode(struct xhci_hcd *xhci, in xhci_port_set_test_mode() argument
715 /* xhci only supports test mode for usb2 ports */ in xhci_port_set_test_mode()
716 port = xhci->usb2_rhub.ports[wIndex]; in xhci_port_set_test_mode()
720 xhci->test_mode = test_mode; in xhci_port_set_test_mode()
722 xhci_start(xhci); in xhci_port_set_test_mode()
725 static int xhci_enter_test_mode(struct xhci_hcd *xhci, in xhci_enter_test_mode() argument
727 __must_hold(&xhci->lock) in xhci_enter_test_mode()
732 xhci_dbg(xhci, "Disable all slots\n"); in xhci_enter_test_mode()
733 spin_unlock_irqrestore(&xhci->lock, *flags); in xhci_enter_test_mode()
734 for (i = 1; i <= HCS_MAX_SLOTS(xhci->hcs_params1); i++) { in xhci_enter_test_mode()
735 if (!xhci->devs[i]) in xhci_enter_test_mode()
738 retval = xhci_disable_slot(xhci, i); in xhci_enter_test_mode()
739 xhci_free_virt_device(xhci, i); in xhci_enter_test_mode()
741 xhci_err(xhci, "Failed to disable slot %d, %d. Enter test mode anyway\n", in xhci_enter_test_mode()
744 spin_lock_irqsave(&xhci->lock, *flags); in xhci_enter_test_mode()
746 xhci_dbg(xhci, "Disable all port (PP = 0)\n"); in xhci_enter_test_mode()
748 for (i = 0; i < xhci->usb3_rhub.num_ports; i++) in xhci_enter_test_mode()
749 xhci_set_port_power(xhci, xhci->usb3_rhub.ports[i], false, flags); in xhci_enter_test_mode()
751 for (i = 0; i < xhci->usb2_rhub.num_ports; i++) in xhci_enter_test_mode()
752 xhci_set_port_power(xhci, xhci->usb2_rhub.ports[i], false, flags); in xhci_enter_test_mode()
754 xhci_dbg(xhci, "Stop controller\n"); in xhci_enter_test_mode()
755 retval = xhci_halt(xhci); in xhci_enter_test_mode()
759 pm_runtime_forbid(xhci_to_hcd(xhci)->self.controller); in xhci_enter_test_mode()
762 xhci_dbg(xhci, "Enter Test Mode: %d, Port_id=%d\n", in xhci_enter_test_mode()
764 xhci_port_set_test_mode(xhci, test_mode, wIndex); in xhci_enter_test_mode()
768 static int xhci_exit_test_mode(struct xhci_hcd *xhci) in xhci_exit_test_mode() argument
772 if (!xhci->test_mode) { in xhci_exit_test_mode()
773 xhci_err(xhci, "Not in test mode, do nothing.\n"); in xhci_exit_test_mode()
776 if (xhci->test_mode == USB_TEST_FORCE_ENABLE && in xhci_exit_test_mode()
777 !(xhci->xhc_state & XHCI_STATE_HALTED)) { in xhci_exit_test_mode()
778 retval = xhci_halt(xhci); in xhci_exit_test_mode()
782 pm_runtime_allow(xhci_to_hcd(xhci)->self.controller); in xhci_exit_test_mode()
783 xhci->test_mode = 0; in xhci_exit_test_mode()
784 return xhci_reset(xhci, XHCI_RESET_SHORT_USEC); in xhci_exit_test_mode()
787 void xhci_set_link_state(struct xhci_hcd *xhci, struct xhci_port *port, in xhci_set_link_state() argument
799 xhci_dbg(xhci, "Set port %d-%d link state, portsc: 0x%x, write 0x%x", in xhci_set_link_state()
804 static void xhci_set_remote_wake_mask(struct xhci_hcd *xhci, in xhci_set_remote_wake_mask() argument
831 void xhci_test_and_clear_bit(struct xhci_hcd *xhci, struct xhci_port *port, in xhci_test_and_clear_bit() argument
845 static void xhci_hub_report_usb3_link_state(struct xhci_hcd *xhci, in xhci_hub_report_usb3_link_state() argument
872 * Resume state is an xHCI internal state. Do not report it to in xhci_hub_report_usb3_link_state()
889 if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && in xhci_hub_report_usb3_link_state()
905 static void xhci_del_comp_mod_timer(struct xhci_hcd *xhci, u32 status, in xhci_del_comp_mod_timer() argument
908 u32 all_ports_seen_u0 = ((1 << xhci->usb3_rhub.num_ports) - 1); in xhci_del_comp_mod_timer()
911 if (!(xhci->quirks & XHCI_COMP_MODE_QUIRK)) in xhci_del_comp_mod_timer()
914 if ((xhci->port_status_u0 != all_ports_seen_u0) && port_in_u0) { in xhci_del_comp_mod_timer()
915 xhci->port_status_u0 |= 1 << wIndex; in xhci_del_comp_mod_timer()
916 if (xhci->port_status_u0 == all_ports_seen_u0) { in xhci_del_comp_mod_timer()
917 del_timer_sync(&xhci->comp_mode_recovery_timer); in xhci_del_comp_mod_timer()
918 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_del_comp_mod_timer()
920 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_del_comp_mod_timer()
931 struct xhci_hcd *xhci; in xhci_handle_usb2_port_link_resume() local
938 xhci = hcd_to_xhci(hcd); in xhci_handle_usb2_port_link_resume()
970 xhci_dbg(xhci, "resume USB2 port %d-%d\n", in xhci_handle_usb2_port_link_resume()
979 xhci_test_and_clear_bit(xhci, port, PORT_PLC); in xhci_handle_usb2_port_link_resume()
980 xhci_set_link_state(xhci, port, XDEV_U0); in xhci_handle_usb2_port_link_resume()
982 spin_unlock_irqrestore(&xhci->lock, *flags); in xhci_handle_usb2_port_link_resume()
986 spin_lock_irqsave(&xhci->lock, *flags); in xhci_handle_usb2_port_link_resume()
989 slot_id = xhci_find_slot_id_by_port(hcd, xhci, in xhci_handle_usb2_port_link_resume()
992 xhci_dbg(xhci, "slot_id is zero\n"); in xhci_handle_usb2_port_link_resume()
995 xhci_ring_device(xhci, slot_id); in xhci_handle_usb2_port_link_resume()
999 xhci_warn(xhci, "Port resume timed out, port %d-%d: 0x%x\n", in xhci_handle_usb2_port_link_resume()
1037 struct xhci_hcd *xhci; in xhci_get_usb3_port_status() local
1043 xhci = hcd_to_xhci(port->rhub->hcd); in xhci_get_usb3_port_status()
1052 * handled by xhci driver. Reporting PLC to usbcore may in xhci_get_usb3_port_status()
1080 xhci_hub_report_usb3_link_state(xhci, status, portsc); in xhci_get_usb3_port_status()
1081 xhci_del_comp_mod_timer(xhci, portsc, portnum); in xhci_get_usb3_port_status()
1139 * Converts a raw xHCI port status into the format that external USB 2.0 or USB
1146 * - Drop and reacquire the xHCI lock, in order to wait for port resume.
1152 __releases(&xhci->lock) in xhci_get_port_status()
1153 __acquires(&xhci->lock) in xhci_get_port_status()
1200 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()
1335 slot_id = xhci_find_slot_id_by_port(hcd, xhci, in xhci_hub_control()
1338 xhci_warn(xhci, "slot_id is zero\n"); in xhci_hub_control()
1342 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1343 xhci_stop_device(xhci, slot_id, 1); in xhci_hub_control()
1344 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1346 xhci_set_link_state(xhci, port, XDEV_U3); in xhci_hub_control()
1348 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1350 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1359 xhci_dbg(xhci, "Disable port %d-%d\n", in xhci_hub_control()
1376 xhci_dbg(xhci, "Enable port %d-%d\n", in xhci_hub_control()
1378 xhci_set_link_state(xhci, port, link_state); in xhci_hub_control()
1384 * For xHCI 1.1 according to section 4.19.1.2.4.1 a in xhci_hub_control()
1398 if (!HCC2_CTC(xhci->hcc_params2)) { in xhci_hub_control()
1399 xhci_dbg(xhci, "CTC flag is 0, port already supports entering compliance mode\n"); in xhci_hub_control()
1404 xhci_warn(xhci, "Can't set compliance mode when port is connected\n"); in xhci_hub_control()
1408 xhci_dbg(xhci, "Enable compliance mode transition for port %d-%d\n", in xhci_hub_control()
1410 xhci_set_link_state(xhci, port, link_state); in xhci_hub_control()
1422 xhci_warn(xhci, "Cannot set port %d-%d link state %d\n", in xhci_hub_control()
1448 xhci_set_link_state(xhci, port, USB_SS_PORT_LS_U0); in xhci_hub_control()
1454 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1457 xhci_dbg(xhci, "missing U0 port change event for port %d-%d\n", in xhci_hub_control()
1459 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1466 slot_id = xhci_find_slot_id_by_port(hcd, xhci, in xhci_hub_control()
1471 spin_unlock_irqrestore(&xhci->lock, in xhci_hub_control()
1473 xhci_stop_device(xhci, slot_id, 1); in xhci_hub_control()
1474 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1476 xhci_set_link_state(xhci, port, USB_SS_PORT_LS_U3); in xhci_hub_control()
1477 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1484 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1496 xhci_set_port_power(xhci, port, true, &flags); in xhci_hub_control()
1503 xhci_dbg(xhci, "set port reset, actual port %d-%d status = 0x%x\n", in xhci_hub_control()
1507 xhci_set_remote_wake_mask(xhci, port, wake_mask); in xhci_hub_control()
1509 xhci_dbg(xhci, "set port remote wake mask, actual port %d-%d status = 0x%x\n", in xhci_hub_control()
1540 retval = xhci_enter_test_mode(xhci, test_mode, wIndex, in xhci_hub_control()
1558 xhci_hc_died(xhci); in xhci_hub_control()
1567 xhci_dbg(xhci, "clear USB_PORT_FEAT_SUSPEND\n"); in xhci_hub_control()
1568 xhci_dbg(xhci, "PORTSC %04x\n", temp); in xhci_hub_control()
1577 xhci_set_link_state(xhci, port, XDEV_RESUME); in xhci_hub_control()
1578 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1580 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_control()
1581 xhci_set_link_state(xhci, port, XDEV_U0); in xhci_hub_control()
1587 slot_id = xhci_find_slot_id_by_port(hcd, xhci, in xhci_hub_control()
1590 xhci_dbg(xhci, "slot_id is zero\n"); in xhci_hub_control()
1593 xhci_ring_device(xhci, slot_id); in xhci_hub_control()
1605 xhci_clear_port_change_bit(xhci, wValue, wIndex, in xhci_hub_control()
1609 xhci_disable_port(xhci, port); in xhci_hub_control()
1612 xhci_set_port_power(xhci, port, false, &flags); in xhci_hub_control()
1615 retval = xhci_exit_test_mode(xhci); in xhci_hub_control()
1626 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_control()
1645 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_hub_status_data() local
1665 spin_lock_irqsave(&xhci->lock, flags); in xhci_hub_status_data()
1673 if (xhci->run_graceperiod) { in xhci_hub_status_data()
1674 if (time_before(jiffies, xhci->run_graceperiod)) in xhci_hub_status_data()
1677 xhci->run_graceperiod = 0; in xhci_hub_status_data()
1686 xhci_hc_died(xhci); in xhci_hub_status_data()
1705 xhci_dbg(xhci, "%s: stopping usb%d port polling\n", in xhci_hub_status_data()
1709 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_hub_status_data()
1717 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_bus_suspend() local
1732 spin_lock_irqsave(&xhci->lock, flags); in xhci_bus_suspend()
1737 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_suspend()
1738 xhci_dbg(xhci, "usb%d bus suspend to fail because a port is resuming\n", in xhci_bus_suspend()
1763 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_suspend()
1765 spin_lock_irqsave(&xhci->lock, flags); in xhci_bus_suspend()
1766 xhci_dbg(xhci, "port %d-%d polling in bus suspend, waiting\n", in xhci_bus_suspend()
1773 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_suspend()
1774 xhci_dbg(xhci, "Bus suspend bailout, port over-current detected\n"); in xhci_bus_suspend()
1781 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_suspend()
1782 xhci_dbg(xhci, "Bus suspend bailout, port connect change\n"); in xhci_bus_suspend()
1785 xhci_dbg(xhci, "port %d-%d not suspended\n", in xhci_bus_suspend()
1804 if ((xhci->quirks & XHCI_U2_DISABLE_WAKE) && in xhci_bus_suspend()
1826 slot_id = xhci_find_slot_id_by_port(hcd, xhci, in xhci_bus_suspend()
1829 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_suspend()
1830 xhci_stop_device(xhci, slot_id, 1); in xhci_bus_suspend()
1831 spin_lock_irqsave(&xhci->lock, flags); in xhci_bus_suspend()
1838 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_suspend()
1876 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_bus_resume() local
1895 spin_lock_irqsave(&xhci->lock, flags); in xhci_bus_resume()
1897 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_resume()
1902 temp = readl(&xhci->op_regs->command); in xhci_bus_resume()
1904 writel(temp, &xhci->op_regs->command); in xhci_bus_resume()
1917 if ((xhci->quirks & XHCI_MISSING_CAS) && in xhci_bus_resume()
1920 xhci_dbg(xhci, "reset stuck port %d-%d\n", in xhci_bus_resume()
1950 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_resume()
1952 spin_lock_irqsave(&xhci->lock, flags); in xhci_bus_resume()
1957 xhci_test_and_clear_bit(xhci, ports[port_index], in xhci_bus_resume()
1959 xhci_set_link_state(xhci, ports[port_index], XDEV_U0); in xhci_bus_resume()
1968 xhci_warn(xhci, "port %d-%d resume PLC timeout\n", in xhci_bus_resume()
1972 xhci_test_and_clear_bit(xhci, ports[port_index], PORT_PLC); in xhci_bus_resume()
1973 slot_id = xhci_find_slot_id_by_port(hcd, xhci, port_index + 1); in xhci_bus_resume()
1975 xhci_ring_device(xhci, slot_id); in xhci_bus_resume()
1977 (void) readl(&xhci->op_regs->command); in xhci_bus_resume()
1981 temp = readl(&xhci->op_regs->command); in xhci_bus_resume()
1983 writel(temp, &xhci->op_regs->command); in xhci_bus_resume()
1984 temp = readl(&xhci->op_regs->command); in xhci_bus_resume()
1986 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_bus_resume()