diff options
Diffstat (limited to 'qemu/hw/usb/hcd-xhci.c')
| -rw-r--r-- | qemu/hw/usb/hcd-xhci.c | 3917 |
1 files changed, 0 insertions, 3917 deletions
diff --git a/qemu/hw/usb/hcd-xhci.c b/qemu/hw/usb/hcd-xhci.c deleted file mode 100644 index bcde8a2f4..000000000 --- a/qemu/hw/usb/hcd-xhci.c +++ /dev/null @@ -1,3917 +0,0 @@ -/* - * USB xHCI controller emulation - * - * Copyright (c) 2011 Securiforest - * Date: 2011-05-11 ; Author: Hector Martin <hector@marcansoft.com> - * Based on usb-ohci.c, emulates Renesas NEC USB 3.0 - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, see <http://www.gnu.org/licenses/>. - */ -#include "qemu/osdep.h" -#include "hw/hw.h" -#include "qemu/timer.h" -#include "hw/usb.h" -#include "hw/pci/pci.h" -#include "hw/pci/msi.h" -#include "hw/pci/msix.h" -#include "trace.h" - -//#define DEBUG_XHCI -//#define DEBUG_DATA - -#ifdef DEBUG_XHCI -#define DPRINTF(...) fprintf(stderr, __VA_ARGS__) -#else -#define DPRINTF(...) do {} while (0) -#endif -#define FIXME(_msg) do { fprintf(stderr, "FIXME %s:%d %s\n", \ - __func__, __LINE__, _msg); abort(); } while (0) - -#define MAXPORTS_2 15 -#define MAXPORTS_3 15 - -#define MAXPORTS (MAXPORTS_2+MAXPORTS_3) -#define MAXSLOTS 64 -#define MAXINTRS 16 - -#define TD_QUEUE 24 - -/* Very pessimistic, let's hope it's enough for all cases */ -#define EV_QUEUE (((3*TD_QUEUE)+16)*MAXSLOTS) -/* Do not deliver ER Full events. NEC's driver does some things not bound - * to the specs when it gets them */ -#define ER_FULL_HACK - -#define LEN_CAP 0x40 -#define LEN_OPER (0x400 + 0x10 * MAXPORTS) -#define LEN_RUNTIME ((MAXINTRS + 1) * 0x20) -#define LEN_DOORBELL ((MAXSLOTS + 1) * 0x20) - -#define OFF_OPER LEN_CAP -#define OFF_RUNTIME 0x1000 -#define OFF_DOORBELL 0x2000 -#define OFF_MSIX_TABLE 0x3000 -#define OFF_MSIX_PBA 0x3800 -/* must be power of 2 */ -#define LEN_REGS 0x4000 - -#if (OFF_OPER + LEN_OPER) > OFF_RUNTIME -#error Increase OFF_RUNTIME -#endif -#if (OFF_RUNTIME + LEN_RUNTIME) > OFF_DOORBELL -#error Increase OFF_DOORBELL -#endif -#if (OFF_DOORBELL + LEN_DOORBELL) > LEN_REGS -# error Increase LEN_REGS -#endif - -/* bit definitions */ -#define USBCMD_RS (1<<0) -#define USBCMD_HCRST (1<<1) -#define USBCMD_INTE (1<<2) -#define USBCMD_HSEE (1<<3) -#define USBCMD_LHCRST (1<<7) -#define USBCMD_CSS (1<<8) -#define USBCMD_CRS (1<<9) -#define USBCMD_EWE (1<<10) -#define USBCMD_EU3S (1<<11) - -#define USBSTS_HCH (1<<0) -#define USBSTS_HSE (1<<2) -#define USBSTS_EINT (1<<3) -#define USBSTS_PCD (1<<4) -#define USBSTS_SSS (1<<8) -#define USBSTS_RSS (1<<9) -#define USBSTS_SRE (1<<10) -#define USBSTS_CNR (1<<11) -#define USBSTS_HCE (1<<12) - - -#define PORTSC_CCS (1<<0) -#define PORTSC_PED (1<<1) -#define PORTSC_OCA (1<<3) -#define PORTSC_PR (1<<4) -#define PORTSC_PLS_SHIFT 5 -#define PORTSC_PLS_MASK 0xf -#define PORTSC_PP (1<<9) -#define PORTSC_SPEED_SHIFT 10 -#define PORTSC_SPEED_MASK 0xf -#define PORTSC_SPEED_FULL (1<<10) -#define PORTSC_SPEED_LOW (2<<10) -#define PORTSC_SPEED_HIGH (3<<10) -#define PORTSC_SPEED_SUPER (4<<10) -#define PORTSC_PIC_SHIFT 14 -#define PORTSC_PIC_MASK 0x3 -#define PORTSC_LWS (1<<16) -#define PORTSC_CSC (1<<17) -#define PORTSC_PEC (1<<18) -#define PORTSC_WRC (1<<19) -#define PORTSC_OCC (1<<20) -#define PORTSC_PRC (1<<21) -#define PORTSC_PLC (1<<22) -#define PORTSC_CEC (1<<23) -#define PORTSC_CAS (1<<24) -#define PORTSC_WCE (1<<25) -#define PORTSC_WDE (1<<26) -#define PORTSC_WOE (1<<27) -#define PORTSC_DR (1<<30) -#define PORTSC_WPR (1<<31) - -#define CRCR_RCS (1<<0) -#define CRCR_CS (1<<1) -#define CRCR_CA (1<<2) -#define CRCR_CRR (1<<3) - -#define IMAN_IP (1<<0) -#define IMAN_IE (1<<1) - -#define ERDP_EHB (1<<3) - -#define TRB_SIZE 16 -typedef struct XHCITRB { - uint64_t parameter; - uint32_t status; - uint32_t control; - dma_addr_t addr; - bool ccs; -} XHCITRB; - -enum { - PLS_U0 = 0, - PLS_U1 = 1, - PLS_U2 = 2, - PLS_U3 = 3, - PLS_DISABLED = 4, - PLS_RX_DETECT = 5, - PLS_INACTIVE = 6, - PLS_POLLING = 7, - PLS_RECOVERY = 8, - PLS_HOT_RESET = 9, - PLS_COMPILANCE_MODE = 10, - PLS_TEST_MODE = 11, - PLS_RESUME = 15, -}; - -typedef enum TRBType { - TRB_RESERVED = 0, - TR_NORMAL, - TR_SETUP, - TR_DATA, - TR_STATUS, - TR_ISOCH, - TR_LINK, - TR_EVDATA, - TR_NOOP, - CR_ENABLE_SLOT, - CR_DISABLE_SLOT, - CR_ADDRESS_DEVICE, - CR_CONFIGURE_ENDPOINT, - CR_EVALUATE_CONTEXT, - CR_RESET_ENDPOINT, - CR_STOP_ENDPOINT, - CR_SET_TR_DEQUEUE, - CR_RESET_DEVICE, - CR_FORCE_EVENT, - CR_NEGOTIATE_BW, - CR_SET_LATENCY_TOLERANCE, - CR_GET_PORT_BANDWIDTH, - CR_FORCE_HEADER, - CR_NOOP, - ER_TRANSFER = 32, - ER_COMMAND_COMPLETE, - ER_PORT_STATUS_CHANGE, - ER_BANDWIDTH_REQUEST, - ER_DOORBELL, - ER_HOST_CONTROLLER, - ER_DEVICE_NOTIFICATION, - ER_MFINDEX_WRAP, - /* vendor specific bits */ - CR_VENDOR_VIA_CHALLENGE_RESPONSE = 48, - CR_VENDOR_NEC_FIRMWARE_REVISION = 49, - CR_VENDOR_NEC_CHALLENGE_RESPONSE = 50, -} TRBType; - -#define CR_LINK TR_LINK - -typedef enum TRBCCode { - CC_INVALID = 0, - CC_SUCCESS, - CC_DATA_BUFFER_ERROR, - CC_BABBLE_DETECTED, - CC_USB_TRANSACTION_ERROR, - CC_TRB_ERROR, - CC_STALL_ERROR, - CC_RESOURCE_ERROR, - CC_BANDWIDTH_ERROR, - CC_NO_SLOTS_ERROR, - CC_INVALID_STREAM_TYPE_ERROR, - CC_SLOT_NOT_ENABLED_ERROR, - CC_EP_NOT_ENABLED_ERROR, - CC_SHORT_PACKET, - CC_RING_UNDERRUN, - CC_RING_OVERRUN, - CC_VF_ER_FULL, - CC_PARAMETER_ERROR, - CC_BANDWIDTH_OVERRUN, - CC_CONTEXT_STATE_ERROR, - CC_NO_PING_RESPONSE_ERROR, - CC_EVENT_RING_FULL_ERROR, - CC_INCOMPATIBLE_DEVICE_ERROR, - CC_MISSED_SERVICE_ERROR, - CC_COMMAND_RING_STOPPED, - CC_COMMAND_ABORTED, - CC_STOPPED, - CC_STOPPED_LENGTH_INVALID, - CC_MAX_EXIT_LATENCY_TOO_LARGE_ERROR = 29, - CC_ISOCH_BUFFER_OVERRUN = 31, - CC_EVENT_LOST_ERROR, - CC_UNDEFINED_ERROR, - CC_INVALID_STREAM_ID_ERROR, - CC_SECONDARY_BANDWIDTH_ERROR, - CC_SPLIT_TRANSACTION_ERROR -} TRBCCode; - -#define TRB_C (1<<0) -#define TRB_TYPE_SHIFT 10 -#define TRB_TYPE_MASK 0x3f -#define TRB_TYPE(t) (((t).control >> TRB_TYPE_SHIFT) & TRB_TYPE_MASK) - -#define TRB_EV_ED (1<<2) - -#define TRB_TR_ENT (1<<1) -#define TRB_TR_ISP (1<<2) -#define TRB_TR_NS (1<<3) -#define TRB_TR_CH (1<<4) -#define TRB_TR_IOC (1<<5) -#define TRB_TR_IDT (1<<6) -#define TRB_TR_TBC_SHIFT 7 -#define TRB_TR_TBC_MASK 0x3 -#define TRB_TR_BEI (1<<9) -#define TRB_TR_TLBPC_SHIFT 16 -#define TRB_TR_TLBPC_MASK 0xf -#define TRB_TR_FRAMEID_SHIFT 20 -#define TRB_TR_FRAMEID_MASK 0x7ff -#define TRB_TR_SIA (1<<31) - -#define TRB_TR_DIR (1<<16) - -#define TRB_CR_SLOTID_SHIFT 24 -#define TRB_CR_SLOTID_MASK 0xff -#define TRB_CR_EPID_SHIFT 16 -#define TRB_CR_EPID_MASK 0x1f - -#define TRB_CR_BSR (1<<9) -#define TRB_CR_DC (1<<9) - -#define TRB_LK_TC (1<<1) - -#define TRB_INTR_SHIFT 22 -#define TRB_INTR_MASK 0x3ff -#define TRB_INTR(t) (((t).status >> TRB_INTR_SHIFT) & TRB_INTR_MASK) - -#define EP_TYPE_MASK 0x7 -#define EP_TYPE_SHIFT 3 - -#define EP_STATE_MASK 0x7 -#define EP_DISABLED (0<<0) -#define EP_RUNNING (1<<0) -#define EP_HALTED (2<<0) -#define EP_STOPPED (3<<0) -#define EP_ERROR (4<<0) - -#define SLOT_STATE_MASK 0x1f -#define SLOT_STATE_SHIFT 27 -#define SLOT_STATE(s) (((s)>>SLOT_STATE_SHIFT)&SLOT_STATE_MASK) -#define SLOT_ENABLED 0 -#define SLOT_DEFAULT 1 -#define SLOT_ADDRESSED 2 -#define SLOT_CONFIGURED 3 - -#define SLOT_CONTEXT_ENTRIES_MASK 0x1f -#define SLOT_CONTEXT_ENTRIES_SHIFT 27 - -typedef struct XHCIState XHCIState; -typedef struct XHCIStreamContext XHCIStreamContext; -typedef struct XHCIEPContext XHCIEPContext; - -#define get_field(data, field) \ - (((data) >> field##_SHIFT) & field##_MASK) - -#define set_field(data, newval, field) do { \ - uint32_t val = *data; \ - val &= ~(field##_MASK << field##_SHIFT); \ - val |= ((newval) & field##_MASK) << field##_SHIFT; \ - *data = val; \ - } while (0) - -typedef enum EPType { - ET_INVALID = 0, - ET_ISO_OUT, - ET_BULK_OUT, - ET_INTR_OUT, - ET_CONTROL, - ET_ISO_IN, - ET_BULK_IN, - ET_INTR_IN, -} EPType; - -typedef struct XHCIRing { - dma_addr_t dequeue; - bool ccs; -} XHCIRing; - -typedef struct XHCIPort { - XHCIState *xhci; - uint32_t portsc; - uint32_t portnr; - USBPort *uport; - uint32_t speedmask; - char name[16]; - MemoryRegion mem; -} XHCIPort; - -typedef struct XHCITransfer { - XHCIState *xhci; - USBPacket packet; - QEMUSGList sgl; - bool running_async; - bool running_retry; - bool complete; - bool int_req; - unsigned int iso_pkts; - unsigned int slotid; - unsigned int epid; - unsigned int streamid; - bool in_xfer; - bool iso_xfer; - bool timed_xfer; - - unsigned int trb_count; - unsigned int trb_alloced; - XHCITRB *trbs; - - TRBCCode status; - - unsigned int pkts; - unsigned int pktsize; - unsigned int cur_pkt; - - uint64_t mfindex_kick; -} XHCITransfer; - -struct XHCIStreamContext { - dma_addr_t pctx; - unsigned int sct; - XHCIRing ring; -}; - -struct XHCIEPContext { - XHCIState *xhci; - unsigned int slotid; - unsigned int epid; - - XHCIRing ring; - unsigned int next_xfer; - unsigned int comp_xfer; - XHCITransfer transfers[TD_QUEUE]; - XHCITransfer *retry; - EPType type; - dma_addr_t pctx; - unsigned int max_psize; - uint32_t state; - - /* streams */ - unsigned int max_pstreams; - bool lsa; - unsigned int nr_pstreams; - XHCIStreamContext *pstreams; - - /* iso xfer scheduling */ - unsigned int interval; - int64_t mfindex_last; - QEMUTimer *kick_timer; -}; - -typedef struct XHCISlot { - bool enabled; - bool addressed; - dma_addr_t ctx; - USBPort *uport; - XHCIEPContext * eps[31]; -} XHCISlot; - -typedef struct XHCIEvent { - TRBType type; - TRBCCode ccode; - uint64_t ptr; - uint32_t length; - uint32_t flags; - uint8_t slotid; - uint8_t epid; -} XHCIEvent; - -typedef struct XHCIInterrupter { - uint32_t iman; - uint32_t imod; - uint32_t erstsz; - uint32_t erstba_low; - uint32_t erstba_high; - uint32_t erdp_low; - uint32_t erdp_high; - - bool msix_used, er_pcs, er_full; - - dma_addr_t er_start; - uint32_t er_size; - unsigned int er_ep_idx; - - XHCIEvent ev_buffer[EV_QUEUE]; - unsigned int ev_buffer_put; - unsigned int ev_buffer_get; - -} XHCIInterrupter; - -struct XHCIState { - /*< private >*/ - PCIDevice parent_obj; - /*< public >*/ - - USBBus bus; - MemoryRegion mem; - MemoryRegion mem_cap; - MemoryRegion mem_oper; - MemoryRegion mem_runtime; - MemoryRegion mem_doorbell; - - /* properties */ - uint32_t numports_2; - uint32_t numports_3; - uint32_t numintrs; - uint32_t numslots; - uint32_t flags; - uint32_t max_pstreams_mask; - - /* Operational Registers */ - uint32_t usbcmd; - uint32_t usbsts; - uint32_t dnctrl; - uint32_t crcr_low; - uint32_t crcr_high; - uint32_t dcbaap_low; - uint32_t dcbaap_high; - uint32_t config; - - USBPort uports[MAX(MAXPORTS_2, MAXPORTS_3)]; - XHCIPort ports[MAXPORTS]; - XHCISlot slots[MAXSLOTS]; - uint32_t numports; - - /* Runtime Registers */ - int64_t mfindex_start; - QEMUTimer *mfwrap_timer; - XHCIInterrupter intr[MAXINTRS]; - - XHCIRing cmd_ring; -}; - -#define TYPE_XHCI "nec-usb-xhci" - -#define XHCI(obj) \ - OBJECT_CHECK(XHCIState, (obj), TYPE_XHCI) - -typedef struct XHCIEvRingSeg { - uint32_t addr_low; - uint32_t addr_high; - uint32_t size; - uint32_t rsvd; -} XHCIEvRingSeg; - -enum xhci_flags { - XHCI_FLAG_USE_MSI = 1, - XHCI_FLAG_USE_MSI_X, - XHCI_FLAG_SS_FIRST, - XHCI_FLAG_FORCE_PCIE_ENDCAP, - XHCI_FLAG_ENABLE_STREAMS, -}; - -static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid, - unsigned int epid, unsigned int streamid); -static TRBCCode xhci_disable_ep(XHCIState *xhci, unsigned int slotid, - unsigned int epid); -static void xhci_xfer_report(XHCITransfer *xfer); -static void xhci_event(XHCIState *xhci, XHCIEvent *event, int v); -static void xhci_write_event(XHCIState *xhci, XHCIEvent *event, int v); -static USBEndpoint *xhci_epid_to_usbep(XHCIState *xhci, - unsigned int slotid, unsigned int epid); - -static const char *TRBType_names[] = { - [TRB_RESERVED] = "TRB_RESERVED", - [TR_NORMAL] = "TR_NORMAL", - [TR_SETUP] = "TR_SETUP", - [TR_DATA] = "TR_DATA", - [TR_STATUS] = "TR_STATUS", - [TR_ISOCH] = "TR_ISOCH", - [TR_LINK] = "TR_LINK", - [TR_EVDATA] = "TR_EVDATA", - [TR_NOOP] = "TR_NOOP", - [CR_ENABLE_SLOT] = "CR_ENABLE_SLOT", - [CR_DISABLE_SLOT] = "CR_DISABLE_SLOT", - [CR_ADDRESS_DEVICE] = "CR_ADDRESS_DEVICE", - [CR_CONFIGURE_ENDPOINT] = "CR_CONFIGURE_ENDPOINT", - [CR_EVALUATE_CONTEXT] = "CR_EVALUATE_CONTEXT", - [CR_RESET_ENDPOINT] = "CR_RESET_ENDPOINT", - [CR_STOP_ENDPOINT] = "CR_STOP_ENDPOINT", - [CR_SET_TR_DEQUEUE] = "CR_SET_TR_DEQUEUE", - [CR_RESET_DEVICE] = "CR_RESET_DEVICE", - [CR_FORCE_EVENT] = "CR_FORCE_EVENT", - [CR_NEGOTIATE_BW] = "CR_NEGOTIATE_BW", - [CR_SET_LATENCY_TOLERANCE] = "CR_SET_LATENCY_TOLERANCE", - [CR_GET_PORT_BANDWIDTH] = "CR_GET_PORT_BANDWIDTH", - [CR_FORCE_HEADER] = "CR_FORCE_HEADER", - [CR_NOOP] = "CR_NOOP", - [ER_TRANSFER] = "ER_TRANSFER", - [ER_COMMAND_COMPLETE] = "ER_COMMAND_COMPLETE", - [ER_PORT_STATUS_CHANGE] = "ER_PORT_STATUS_CHANGE", - [ER_BANDWIDTH_REQUEST] = "ER_BANDWIDTH_REQUEST", - [ER_DOORBELL] = "ER_DOORBELL", - [ER_HOST_CONTROLLER] = "ER_HOST_CONTROLLER", - [ER_DEVICE_NOTIFICATION] = "ER_DEVICE_NOTIFICATION", - [ER_MFINDEX_WRAP] = "ER_MFINDEX_WRAP", - [CR_VENDOR_VIA_CHALLENGE_RESPONSE] = "CR_VENDOR_VIA_CHALLENGE_RESPONSE", - [CR_VENDOR_NEC_FIRMWARE_REVISION] = "CR_VENDOR_NEC_FIRMWARE_REVISION", - [CR_VENDOR_NEC_CHALLENGE_RESPONSE] = "CR_VENDOR_NEC_CHALLENGE_RESPONSE", -}; - -static const char *TRBCCode_names[] = { - [CC_INVALID] = "CC_INVALID", - [CC_SUCCESS] = "CC_SUCCESS", - [CC_DATA_BUFFER_ERROR] = "CC_DATA_BUFFER_ERROR", - [CC_BABBLE_DETECTED] = "CC_BABBLE_DETECTED", - [CC_USB_TRANSACTION_ERROR] = "CC_USB_TRANSACTION_ERROR", - [CC_TRB_ERROR] = "CC_TRB_ERROR", - [CC_STALL_ERROR] = "CC_STALL_ERROR", - [CC_RESOURCE_ERROR] = "CC_RESOURCE_ERROR", - [CC_BANDWIDTH_ERROR] = "CC_BANDWIDTH_ERROR", - [CC_NO_SLOTS_ERROR] = "CC_NO_SLOTS_ERROR", - [CC_INVALID_STREAM_TYPE_ERROR] = "CC_INVALID_STREAM_TYPE_ERROR", - [CC_SLOT_NOT_ENABLED_ERROR] = "CC_SLOT_NOT_ENABLED_ERROR", - [CC_EP_NOT_ENABLED_ERROR] = "CC_EP_NOT_ENABLED_ERROR", - [CC_SHORT_PACKET] = "CC_SHORT_PACKET", - [CC_RING_UNDERRUN] = "CC_RING_UNDERRUN", - [CC_RING_OVERRUN] = "CC_RING_OVERRUN", - [CC_VF_ER_FULL] = "CC_VF_ER_FULL", - [CC_PARAMETER_ERROR] = "CC_PARAMETER_ERROR", - [CC_BANDWIDTH_OVERRUN] = "CC_BANDWIDTH_OVERRUN", - [CC_CONTEXT_STATE_ERROR] = "CC_CONTEXT_STATE_ERROR", - [CC_NO_PING_RESPONSE_ERROR] = "CC_NO_PING_RESPONSE_ERROR", - [CC_EVENT_RING_FULL_ERROR] = "CC_EVENT_RING_FULL_ERROR", - [CC_INCOMPATIBLE_DEVICE_ERROR] = "CC_INCOMPATIBLE_DEVICE_ERROR", - [CC_MISSED_SERVICE_ERROR] = "CC_MISSED_SERVICE_ERROR", - [CC_COMMAND_RING_STOPPED] = "CC_COMMAND_RING_STOPPED", - [CC_COMMAND_ABORTED] = "CC_COMMAND_ABORTED", - [CC_STOPPED] = "CC_STOPPED", - [CC_STOPPED_LENGTH_INVALID] = "CC_STOPPED_LENGTH_INVALID", - [CC_MAX_EXIT_LATENCY_TOO_LARGE_ERROR] - = "CC_MAX_EXIT_LATENCY_TOO_LARGE_ERROR", - [CC_ISOCH_BUFFER_OVERRUN] = "CC_ISOCH_BUFFER_OVERRUN", - [CC_EVENT_LOST_ERROR] = "CC_EVENT_LOST_ERROR", - [CC_UNDEFINED_ERROR] = "CC_UNDEFINED_ERROR", - [CC_INVALID_STREAM_ID_ERROR] = "CC_INVALID_STREAM_ID_ERROR", - [CC_SECONDARY_BANDWIDTH_ERROR] = "CC_SECONDARY_BANDWIDTH_ERROR", - [CC_SPLIT_TRANSACTION_ERROR] = "CC_SPLIT_TRANSACTION_ERROR", -}; - -static const char *ep_state_names[] = { - [EP_DISABLED] = "disabled", - [EP_RUNNING] = "running", - [EP_HALTED] = "halted", - [EP_STOPPED] = "stopped", - [EP_ERROR] = "error", -}; - -static const char *lookup_name(uint32_t index, const char **list, uint32_t llen) -{ - if (index >= llen || list[index] == NULL) { - return "???"; - } - return list[index]; -} - -static const char *trb_name(XHCITRB *trb) -{ - return lookup_name(TRB_TYPE(*trb), TRBType_names, - ARRAY_SIZE(TRBType_names)); -} - -static const char *event_name(XHCIEvent *event) -{ - return lookup_name(event->ccode, TRBCCode_names, - ARRAY_SIZE(TRBCCode_names)); -} - -static const char *ep_state_name(uint32_t state) -{ - return lookup_name(state, ep_state_names, - ARRAY_SIZE(ep_state_names)); -} - -static bool xhci_get_flag(XHCIState *xhci, enum xhci_flags bit) -{ - return xhci->flags & (1 << bit); -} - -static uint64_t xhci_mfindex_get(XHCIState *xhci) -{ - int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); - return (now - xhci->mfindex_start) / 125000; -} - -static void xhci_mfwrap_update(XHCIState *xhci) -{ - const uint32_t bits = USBCMD_RS | USBCMD_EWE; - uint32_t mfindex, left; - int64_t now; - - if ((xhci->usbcmd & bits) == bits) { - now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); - mfindex = ((now - xhci->mfindex_start) / 125000) & 0x3fff; - left = 0x4000 - mfindex; - timer_mod(xhci->mfwrap_timer, now + left * 125000); - } else { - timer_del(xhci->mfwrap_timer); - } -} - -static void xhci_mfwrap_timer(void *opaque) -{ - XHCIState *xhci = opaque; - XHCIEvent wrap = { ER_MFINDEX_WRAP, CC_SUCCESS }; - - xhci_event(xhci, &wrap, 0); - xhci_mfwrap_update(xhci); -} - -static inline dma_addr_t xhci_addr64(uint32_t low, uint32_t high) -{ - if (sizeof(dma_addr_t) == 4) { - return low; - } else { - return low | (((dma_addr_t)high << 16) << 16); - } -} - -static inline dma_addr_t xhci_mask64(uint64_t addr) -{ - if (sizeof(dma_addr_t) == 4) { - return addr & 0xffffffff; - } else { - return addr; - } -} - -static inline void xhci_dma_read_u32s(XHCIState *xhci, dma_addr_t addr, - uint32_t *buf, size_t len) -{ - int i; - - assert((len % sizeof(uint32_t)) == 0); - - pci_dma_read(PCI_DEVICE(xhci), addr, buf, len); - - for (i = 0; i < (len / sizeof(uint32_t)); i++) { - buf[i] = le32_to_cpu(buf[i]); - } -} - -static inline void xhci_dma_write_u32s(XHCIState *xhci, dma_addr_t addr, - uint32_t *buf, size_t len) -{ - int i; - uint32_t tmp[5]; - uint32_t n = len / sizeof(uint32_t); - - assert((len % sizeof(uint32_t)) == 0); - assert(n <= ARRAY_SIZE(tmp)); - - for (i = 0; i < n; i++) { - tmp[i] = cpu_to_le32(buf[i]); - } - pci_dma_write(PCI_DEVICE(xhci), addr, tmp, len); -} - -static XHCIPort *xhci_lookup_port(XHCIState *xhci, struct USBPort *uport) -{ - int index; - - if (!uport->dev) { - return NULL; - } - switch (uport->dev->speed) { - case USB_SPEED_LOW: - case USB_SPEED_FULL: - case USB_SPEED_HIGH: - if (xhci_get_flag(xhci, XHCI_FLAG_SS_FIRST)) { - index = uport->index + xhci->numports_3; - } else { - index = uport->index; - } - break; - case USB_SPEED_SUPER: - if (xhci_get_flag(xhci, XHCI_FLAG_SS_FIRST)) { - index = uport->index; - } else { - index = uport->index + xhci->numports_2; - } - break; - default: - return NULL; - } - return &xhci->ports[index]; -} - -static void xhci_intx_update(XHCIState *xhci) -{ - PCIDevice *pci_dev = PCI_DEVICE(xhci); - int level = 0; - - if (msix_enabled(pci_dev) || - msi_enabled(pci_dev)) { - return; - } - - if (xhci->intr[0].iman & IMAN_IP && - xhci->intr[0].iman & IMAN_IE && - xhci->usbcmd & USBCMD_INTE) { - level = 1; - } - - trace_usb_xhci_irq_intx(level); - pci_set_irq(pci_dev, level); -} - -static void xhci_msix_update(XHCIState *xhci, int v) -{ - PCIDevice *pci_dev = PCI_DEVICE(xhci); - bool enabled; - - if (!msix_enabled(pci_dev)) { - return; - } - - enabled = xhci->intr[v].iman & IMAN_IE; - if (enabled == xhci->intr[v].msix_used) { - return; - } - - if (enabled) { - trace_usb_xhci_irq_msix_use(v); - msix_vector_use(pci_dev, v); - xhci->intr[v].msix_used = true; - } else { - trace_usb_xhci_irq_msix_unuse(v); - msix_vector_unuse(pci_dev, v); - xhci->intr[v].msix_used = false; - } -} - -static void xhci_intr_raise(XHCIState *xhci, int v) -{ - PCIDevice *pci_dev = PCI_DEVICE(xhci); - - xhci->intr[v].erdp_low |= ERDP_EHB; - xhci->intr[v].iman |= IMAN_IP; - xhci->usbsts |= USBSTS_EINT; - - if (!(xhci->intr[v].iman & IMAN_IE)) { - return; - } - - if (!(xhci->usbcmd & USBCMD_INTE)) { - return; - } - - if (msix_enabled(pci_dev)) { - trace_usb_xhci_irq_msix(v); - msix_notify(pci_dev, v); - return; - } - - if (msi_enabled(pci_dev)) { - trace_usb_xhci_irq_msi(v); - msi_notify(pci_dev, v); - return; - } - - if (v == 0) { - trace_usb_xhci_irq_intx(1); - pci_irq_assert(pci_dev); - } -} - -static inline int xhci_running(XHCIState *xhci) -{ - return !(xhci->usbsts & USBSTS_HCH) && !xhci->intr[0].er_full; -} - -static void xhci_die(XHCIState *xhci) -{ - xhci->usbsts |= USBSTS_HCE; - DPRINTF("xhci: asserted controller error\n"); -} - -static void xhci_write_event(XHCIState *xhci, XHCIEvent *event, int v) -{ - PCIDevice *pci_dev = PCI_DEVICE(xhci); - XHCIInterrupter *intr = &xhci->intr[v]; - XHCITRB ev_trb; - dma_addr_t addr; - - ev_trb.parameter = cpu_to_le64(event->ptr); - ev_trb.status = cpu_to_le32(event->length | (event->ccode << 24)); - ev_trb.control = (event->slotid << 24) | (event->epid << 16) | - event->flags | (event->type << TRB_TYPE_SHIFT); - if (intr->er_pcs) { - ev_trb.control |= TRB_C; - } - ev_trb.control = cpu_to_le32(ev_trb.control); - - trace_usb_xhci_queue_event(v, intr->er_ep_idx, trb_name(&ev_trb), - event_name(event), ev_trb.parameter, - ev_trb.status, ev_trb.control); - - addr = intr->er_start + TRB_SIZE*intr->er_ep_idx; - pci_dma_write(pci_dev, addr, &ev_trb, TRB_SIZE); - - intr->er_ep_idx++; - if (intr->er_ep_idx >= intr->er_size) { - intr->er_ep_idx = 0; - intr->er_pcs = !intr->er_pcs; - } -} - -static void xhci_events_update(XHCIState *xhci, int v) -{ - XHCIInterrupter *intr = &xhci->intr[v]; - dma_addr_t erdp; - unsigned int dp_idx; - bool do_irq = 0; - - if (xhci->usbsts & USBSTS_HCH) { - return; - } - - erdp = xhci_addr64(intr->erdp_low, intr->erdp_high); - if (erdp < intr->er_start || - erdp >= (intr->er_start + TRB_SIZE*intr->er_size)) { - DPRINTF("xhci: ERDP out of bounds: "DMA_ADDR_FMT"\n", erdp); - DPRINTF("xhci: ER[%d] at "DMA_ADDR_FMT" len %d\n", - v, intr->er_start, intr->er_size); - xhci_die(xhci); - return; - } - dp_idx = (erdp - intr->er_start) / TRB_SIZE; - assert(dp_idx < intr->er_size); - - /* NEC didn't read section 4.9.4 of the spec (v1.0 p139 top Note) and thus - * deadlocks when the ER is full. Hack it by holding off events until - * the driver decides to free at least half of the ring */ - if (intr->er_full) { - int er_free = dp_idx - intr->er_ep_idx; - if (er_free <= 0) { - er_free += intr->er_size; - } - if (er_free < (intr->er_size/2)) { - DPRINTF("xhci_events_update(): event ring still " - "more than half full (hack)\n"); - return; - } - } - - while (intr->ev_buffer_put != intr->ev_buffer_get) { - assert(intr->er_full); - if (((intr->er_ep_idx+1) % intr->er_size) == dp_idx) { - DPRINTF("xhci_events_update(): event ring full again\n"); -#ifndef ER_FULL_HACK - XHCIEvent full = {ER_HOST_CONTROLLER, CC_EVENT_RING_FULL_ERROR}; - xhci_write_event(xhci, &full, v); -#endif - do_irq = 1; - break; - } - XHCIEvent *event = &intr->ev_buffer[intr->ev_buffer_get]; - xhci_write_event(xhci, event, v); - intr->ev_buffer_get++; - do_irq = 1; - if (intr->ev_buffer_get == EV_QUEUE) { - intr->ev_buffer_get = 0; - } - } - - if (do_irq) { - xhci_intr_raise(xhci, v); - } - - if (intr->er_full && intr->ev_buffer_put == intr->ev_buffer_get) { - DPRINTF("xhci_events_update(): event ring no longer full\n"); - intr->er_full = 0; - } -} - -static void xhci_event(XHCIState *xhci, XHCIEvent *event, int v) -{ - XHCIInterrupter *intr; - dma_addr_t erdp; - unsigned int dp_idx; - - if (v >= xhci->numintrs) { - DPRINTF("intr nr out of range (%d >= %d)\n", v, xhci->numintrs); - return; - } - intr = &xhci->intr[v]; - - if (intr->er_full) { - DPRINTF("xhci_event(): ER full, queueing\n"); - if (((intr->ev_buffer_put+1) % EV_QUEUE) == intr->ev_buffer_get) { - DPRINTF("xhci: event queue full, dropping event!\n"); - return; - } - intr->ev_buffer[intr->ev_buffer_put++] = *event; - if (intr->ev_buffer_put == EV_QUEUE) { - intr->ev_buffer_put = 0; - } - return; - } - - erdp = xhci_addr64(intr->erdp_low, intr->erdp_high); - if (erdp < intr->er_start || - erdp >= (intr->er_start + TRB_SIZE*intr->er_size)) { - DPRINTF("xhci: ERDP out of bounds: "DMA_ADDR_FMT"\n", erdp); - DPRINTF("xhci: ER[%d] at "DMA_ADDR_FMT" len %d\n", - v, intr->er_start, intr->er_size); - xhci_die(xhci); - return; - } - - dp_idx = (erdp - intr->er_start) / TRB_SIZE; - assert(dp_idx < intr->er_size); - - if ((intr->er_ep_idx+1) % intr->er_size == dp_idx) { - DPRINTF("xhci_event(): ER full, queueing\n"); -#ifndef ER_FULL_HACK - XHCIEvent full = {ER_HOST_CONTROLLER, CC_EVENT_RING_FULL_ERROR}; - xhci_write_event(xhci, &full); -#endif - intr->er_full = 1; - if (((intr->ev_buffer_put+1) % EV_QUEUE) == intr->ev_buffer_get) { - DPRINTF("xhci: event queue full, dropping event!\n"); - return; - } - intr->ev_buffer[intr->ev_buffer_put++] = *event; - if (intr->ev_buffer_put == EV_QUEUE) { - intr->ev_buffer_put = 0; - } - } else { - xhci_write_event(xhci, event, v); - } - - xhci_intr_raise(xhci, v); -} - -static void xhci_ring_init(XHCIState *xhci, XHCIRing *ring, - dma_addr_t base) -{ - ring->dequeue = base; - ring->ccs = 1; -} - -static TRBType xhci_ring_fetch(XHCIState *xhci, XHCIRing *ring, XHCITRB *trb, - dma_addr_t *addr) -{ - PCIDevice *pci_dev = PCI_DEVICE(xhci); - - while (1) { - TRBType type; - pci_dma_read(pci_dev, ring->dequeue, trb, TRB_SIZE); - trb->addr = ring->dequeue; - trb->ccs = ring->ccs; - le64_to_cpus(&trb->parameter); - le32_to_cpus(&trb->status); - le32_to_cpus(&trb->control); - - trace_usb_xhci_fetch_trb(ring->dequeue, trb_name(trb), - trb->parameter, trb->status, trb->control); - - if ((trb->control & TRB_C) != ring->ccs) { - return 0; - } - - type = TRB_TYPE(*trb); - - if (type != TR_LINK) { - if (addr) { - *addr = ring->dequeue; - } - ring->dequeue += TRB_SIZE; - return type; - } else { - ring->dequeue = xhci_mask64(trb->parameter); - if (trb->control & TRB_LK_TC) { - ring->ccs = !ring->ccs; - } - } - } -} - -static int xhci_ring_chain_length(XHCIState *xhci, const XHCIRing *ring) -{ - PCIDevice *pci_dev = PCI_DEVICE(xhci); - XHCITRB trb; - int length = 0; - dma_addr_t dequeue = ring->dequeue; - bool ccs = ring->ccs; - /* hack to bundle together the two/three TDs that make a setup transfer */ - bool control_td_set = 0; - - while (1) { - TRBType type; - pci_dma_read(pci_dev, dequeue, &trb, TRB_SIZE); - le64_to_cpus(&trb.parameter); - le32_to_cpus(&trb.status); - le32_to_cpus(&trb.control); - - if ((trb.control & TRB_C) != ccs) { - return -length; - } - - type = TRB_TYPE(trb); - - if (type == TR_LINK) { - dequeue = xhci_mask64(trb.parameter); - if (trb.control & TRB_LK_TC) { - ccs = !ccs; - } - continue; - } - - length += 1; - dequeue += TRB_SIZE; - - if (type == TR_SETUP) { - control_td_set = 1; - } else if (type == TR_STATUS) { - control_td_set = 0; - } - - if (!control_td_set && !(trb.control & TRB_TR_CH)) { - return length; - } - } -} - -static void xhci_er_reset(XHCIState *xhci, int v) -{ - XHCIInterrupter *intr = &xhci->intr[v]; - XHCIEvRingSeg seg; - - if (intr->erstsz == 0) { - /* disabled */ - intr->er_start = 0; - intr->er_size = 0; - return; - } - /* cache the (sole) event ring segment location */ - if (intr->erstsz != 1) { - DPRINTF("xhci: invalid value for ERSTSZ: %d\n", intr->erstsz); - xhci_die(xhci); - return; - } - dma_addr_t erstba = xhci_addr64(intr->erstba_low, intr->erstba_high); - pci_dma_read(PCI_DEVICE(xhci), erstba, &seg, sizeof(seg)); - le32_to_cpus(&seg.addr_low); - le32_to_cpus(&seg.addr_high); - le32_to_cpus(&seg.size); - if (seg.size < 16 || seg.size > 4096) { - DPRINTF("xhci: invalid value for segment size: %d\n", seg.size); - xhci_die(xhci); - return; - } - intr->er_start = xhci_addr64(seg.addr_low, seg.addr_high); - intr->er_size = seg.size; - - intr->er_ep_idx = 0; - intr->er_pcs = 1; - intr->er_full = 0; - - DPRINTF("xhci: event ring[%d]:" DMA_ADDR_FMT " [%d]\n", - v, intr->er_start, intr->er_size); -} - -static void xhci_run(XHCIState *xhci) -{ - trace_usb_xhci_run(); - xhci->usbsts &= ~USBSTS_HCH; - xhci->mfindex_start = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); -} - -static void xhci_stop(XHCIState *xhci) -{ - trace_usb_xhci_stop(); - xhci->usbsts |= USBSTS_HCH; - xhci->crcr_low &= ~CRCR_CRR; -} - -static XHCIStreamContext *xhci_alloc_stream_contexts(unsigned count, - dma_addr_t base) -{ - XHCIStreamContext *stctx; - unsigned int i; - - stctx = g_new0(XHCIStreamContext, count); - for (i = 0; i < count; i++) { - stctx[i].pctx = base + i * 16; - stctx[i].sct = -1; - } - return stctx; -} - -static void xhci_reset_streams(XHCIEPContext *epctx) -{ - unsigned int i; - - for (i = 0; i < epctx->nr_pstreams; i++) { - epctx->pstreams[i].sct = -1; - } -} - -static void xhci_alloc_streams(XHCIEPContext *epctx, dma_addr_t base) -{ - assert(epctx->pstreams == NULL); - epctx->nr_pstreams = 2 << epctx->max_pstreams; - epctx->pstreams = xhci_alloc_stream_contexts(epctx->nr_pstreams, base); -} - -static void xhci_free_streams(XHCIEPContext *epctx) -{ - assert(epctx->pstreams != NULL); - - g_free(epctx->pstreams); - epctx->pstreams = NULL; - epctx->nr_pstreams = 0; -} - -static int xhci_epmask_to_eps_with_streams(XHCIState *xhci, - unsigned int slotid, - uint32_t epmask, - XHCIEPContext **epctxs, - USBEndpoint **eps) -{ - XHCISlot *slot; - XHCIEPContext *epctx; - USBEndpoint *ep; - int i, j; - - assert(slotid >= 1 && slotid <= xhci->numslots); - - slot = &xhci->slots[slotid - 1]; - - for (i = 2, j = 0; i <= 31; i++) { - if (!(epmask & (1u << i))) { - continue; - } - - epctx = slot->eps[i - 1]; - ep = xhci_epid_to_usbep(xhci, slotid, i); - if (!epctx || !epctx->nr_pstreams || !ep) { - continue; - } - - if (epctxs) { - epctxs[j] = epctx; - } - eps[j++] = ep; - } - return j; -} - -static void xhci_free_device_streams(XHCIState *xhci, unsigned int slotid, - uint32_t epmask) -{ - USBEndpoint *eps[30]; - int nr_eps; - - nr_eps = xhci_epmask_to_eps_with_streams(xhci, slotid, epmask, NULL, eps); - if (nr_eps) { - usb_device_free_streams(eps[0]->dev, eps, nr_eps); - } -} - -static TRBCCode xhci_alloc_device_streams(XHCIState *xhci, unsigned int slotid, - uint32_t epmask) -{ - XHCIEPContext *epctxs[30]; - USBEndpoint *eps[30]; - int i, r, nr_eps, req_nr_streams, dev_max_streams; - - nr_eps = xhci_epmask_to_eps_with_streams(xhci, slotid, epmask, epctxs, - eps); - if (nr_eps == 0) { - return CC_SUCCESS; - } - - req_nr_streams = epctxs[0]->nr_pstreams; - dev_max_streams = eps[0]->max_streams; - - for (i = 1; i < nr_eps; i++) { - /* - * HdG: I don't expect these to ever trigger, but if they do we need - * to come up with another solution, ie group identical endpoints - * together and make an usb_device_alloc_streams call per group. - */ - if (epctxs[i]->nr_pstreams != req_nr_streams) { - FIXME("guest streams config not identical for all eps"); - return CC_RESOURCE_ERROR; - } - if (eps[i]->max_streams != dev_max_streams) { - FIXME("device streams config not identical for all eps"); - return CC_RESOURCE_ERROR; - } - } - - /* - * max-streams in both the device descriptor and in the controller is a - * power of 2. But stream id 0 is reserved, so if a device can do up to 4 - * streams the guest will ask for 5 rounded up to the next power of 2 which - * becomes 8. For emulated devices usb_device_alloc_streams is a nop. - * - * For redirected devices however this is an issue, as there we must ask - * the real xhci controller to alloc streams, and the host driver for the - * real xhci controller will likely disallow allocating more streams then - * the device can handle. - * - * So we limit the requested nr_streams to the maximum number the device - * can handle. - */ - if (req_nr_streams > dev_max_streams) { - req_nr_streams = dev_max_streams; - } - - r = usb_device_alloc_streams(eps[0]->dev, eps, nr_eps, req_nr_streams); - if (r != 0) { - DPRINTF("xhci: alloc streams failed\n"); - return CC_RESOURCE_ERROR; - } - - return CC_SUCCESS; -} - -static XHCIStreamContext *xhci_find_stream(XHCIEPContext *epctx, - unsigned int streamid, - uint32_t *cc_error) -{ - XHCIStreamContext *sctx; - dma_addr_t base; - uint32_t ctx[2], sct; - - assert(streamid != 0); - if (epctx->lsa) { - if (streamid >= epctx->nr_pstreams) { - *cc_error = CC_INVALID_STREAM_ID_ERROR; - return NULL; - } - sctx = epctx->pstreams + streamid; - } else { - FIXME("secondary streams not implemented yet"); - } - - if (sctx->sct == -1) { - xhci_dma_read_u32s(epctx->xhci, sctx->pctx, ctx, sizeof(ctx)); - sct = (ctx[0] >> 1) & 0x07; - if (epctx->lsa && sct != 1) { - *cc_error = CC_INVALID_STREAM_TYPE_ERROR; - return NULL; - } - sctx->sct = sct; - base = xhci_addr64(ctx[0] & ~0xf, ctx[1]); - xhci_ring_init(epctx->xhci, &sctx->ring, base); - } - return sctx; -} - -static void xhci_set_ep_state(XHCIState *xhci, XHCIEPContext *epctx, - XHCIStreamContext *sctx, uint32_t state) -{ - XHCIRing *ring = NULL; - uint32_t ctx[5]; - uint32_t ctx2[2]; - - xhci_dma_read_u32s(xhci, epctx->pctx, ctx, sizeof(ctx)); - ctx[0] &= ~EP_STATE_MASK; - ctx[0] |= state; - - /* update ring dequeue ptr */ - if (epctx->nr_pstreams) { - if (sctx != NULL) { - ring = &sctx->ring; - xhci_dma_read_u32s(xhci, sctx->pctx, ctx2, sizeof(ctx2)); - ctx2[0] &= 0xe; - ctx2[0] |= sctx->ring.dequeue | sctx->ring.ccs; - ctx2[1] = (sctx->ring.dequeue >> 16) >> 16; - xhci_dma_write_u32s(xhci, sctx->pctx, ctx2, sizeof(ctx2)); - } - } else { - ring = &epctx->ring; - } - if (ring) { - ctx[2] = ring->dequeue | ring->ccs; - ctx[3] = (ring->dequeue >> 16) >> 16; - - DPRINTF("xhci: set epctx: " DMA_ADDR_FMT " state=%d dequeue=%08x%08x\n", - epctx->pctx, state, ctx[3], ctx[2]); - } - - xhci_dma_write_u32s(xhci, epctx->pctx, ctx, sizeof(ctx)); - if (epctx->state != state) { - trace_usb_xhci_ep_state(epctx->slotid, epctx->epid, - ep_state_name(epctx->state), - ep_state_name(state)); - } - epctx->state = state; -} - -static void xhci_ep_kick_timer(void *opaque) -{ - XHCIEPContext *epctx = opaque; - xhci_kick_ep(epctx->xhci, epctx->slotid, epctx->epid, 0); -} - -static XHCIEPContext *xhci_alloc_epctx(XHCIState *xhci, - unsigned int slotid, - unsigned int epid) -{ - XHCIEPContext *epctx; - int i; - - epctx = g_new0(XHCIEPContext, 1); - epctx->xhci = xhci; - epctx->slotid = slotid; - epctx->epid = epid; - - for (i = 0; i < ARRAY_SIZE(epctx->transfers); i++) { - epctx->transfers[i].xhci = xhci; - epctx->transfers[i].slotid = slotid; - epctx->transfers[i].epid = epid; - usb_packet_init(&epctx->transfers[i].packet); - } - epctx->kick_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, xhci_ep_kick_timer, epctx); - - return epctx; -} - -static void xhci_init_epctx(XHCIEPContext *epctx, - dma_addr_t pctx, uint32_t *ctx) -{ - dma_addr_t dequeue; - - dequeue = xhci_addr64(ctx[2] & ~0xf, ctx[3]); - - epctx->type = (ctx[1] >> EP_TYPE_SHIFT) & EP_TYPE_MASK; - epctx->pctx = pctx; - epctx->max_psize = ctx[1]>>16; - epctx->max_psize *= 1+((ctx[1]>>8)&0xff); - epctx->max_pstreams = (ctx[0] >> 10) & epctx->xhci->max_pstreams_mask; - epctx->lsa = (ctx[0] >> 15) & 1; - if (epctx->max_pstreams) { - xhci_alloc_streams(epctx, dequeue); - } else { - xhci_ring_init(epctx->xhci, &epctx->ring, dequeue); - epctx->ring.ccs = ctx[2] & 1; - } - - epctx->interval = 1 << ((ctx[0] >> 16) & 0xff); -} - -static TRBCCode xhci_enable_ep(XHCIState *xhci, unsigned int slotid, - unsigned int epid, dma_addr_t pctx, - uint32_t *ctx) -{ - XHCISlot *slot; - XHCIEPContext *epctx; - - trace_usb_xhci_ep_enable(slotid, epid); - assert(slotid >= 1 && slotid <= xhci->numslots); - assert(epid >= 1 && epid <= 31); - - slot = &xhci->slots[slotid-1]; - if (slot->eps[epid-1]) { - xhci_disable_ep(xhci, slotid, epid); - } - - epctx = xhci_alloc_epctx(xhci, slotid, epid); - slot->eps[epid-1] = epctx; - xhci_init_epctx(epctx, pctx, ctx); - - DPRINTF("xhci: endpoint %d.%d type is %d, max transaction (burst) " - "size is %d\n", epid/2, epid%2, epctx->type, epctx->max_psize); - - epctx->mfindex_last = 0; - - epctx->state = EP_RUNNING; - ctx[0] &= ~EP_STATE_MASK; - ctx[0] |= EP_RUNNING; - - return CC_SUCCESS; -} - -static int xhci_ep_nuke_one_xfer(XHCITransfer *t, TRBCCode report) -{ - int killed = 0; - - if (report && (t->running_async || t->running_retry)) { - t->status = report; - xhci_xfer_report(t); - } - - if (t->running_async) { - usb_cancel_packet(&t->packet); - t->running_async = 0; - killed = 1; - } - if (t->running_retry) { - XHCIEPContext *epctx = t->xhci->slots[t->slotid-1].eps[t->epid-1]; - if (epctx) { - epctx->retry = NULL; - timer_del(epctx->kick_timer); - } - t->running_retry = 0; - killed = 1; - } - g_free(t->trbs); - - t->trbs = NULL; - t->trb_count = t->trb_alloced = 0; - - return killed; -} - -static int xhci_ep_nuke_xfers(XHCIState *xhci, unsigned int slotid, - unsigned int epid, TRBCCode report) -{ - XHCISlot *slot; - XHCIEPContext *epctx; - int i, xferi, killed = 0; - USBEndpoint *ep = NULL; - assert(slotid >= 1 && slotid <= xhci->numslots); - assert(epid >= 1 && epid <= 31); - - DPRINTF("xhci_ep_nuke_xfers(%d, %d)\n", slotid, epid); - - slot = &xhci->slots[slotid-1]; - - if (!slot->eps[epid-1]) { - return 0; - } - - epctx = slot->eps[epid-1]; - - xferi = epctx->next_xfer; - for (i = 0; i < TD_QUEUE; i++) { - killed += xhci_ep_nuke_one_xfer(&epctx->transfers[xferi], report); - if (killed) { - report = 0; /* Only report once */ - } - epctx->transfers[xferi].packet.ep = NULL; - xferi = (xferi + 1) % TD_QUEUE; - } - - ep = xhci_epid_to_usbep(xhci, slotid, epid); - if (ep) { - usb_device_ep_stopped(ep->dev, ep); - } - return killed; -} - -static TRBCCode xhci_disable_ep(XHCIState *xhci, unsigned int slotid, - unsigned int epid) -{ - XHCISlot *slot; - XHCIEPContext *epctx; - int i; - - trace_usb_xhci_ep_disable(slotid, epid); - assert(slotid >= 1 && slotid <= xhci->numslots); - assert(epid >= 1 && epid <= 31); - - slot = &xhci->slots[slotid-1]; - - if (!slot->eps[epid-1]) { - DPRINTF("xhci: slot %d ep %d already disabled\n", slotid, epid); - return CC_SUCCESS; - } - - xhci_ep_nuke_xfers(xhci, slotid, epid, 0); - - epctx = slot->eps[epid-1]; - - if (epctx->nr_pstreams) { - xhci_free_streams(epctx); - } - - for (i = 0; i < ARRAY_SIZE(epctx->transfers); i++) { - usb_packet_cleanup(&epctx->transfers[i].packet); - } - - xhci_set_ep_state(xhci, epctx, NULL, EP_DISABLED); - - timer_free(epctx->kick_timer); - g_free(epctx); - slot->eps[epid-1] = NULL; - - return CC_SUCCESS; -} - -static TRBCCode xhci_stop_ep(XHCIState *xhci, unsigned int slotid, - unsigned int epid) -{ - XHCISlot *slot; - XHCIEPContext *epctx; - - trace_usb_xhci_ep_stop(slotid, epid); - assert(slotid >= 1 && slotid <= xhci->numslots); - - if (epid < 1 || epid > 31) { - DPRINTF("xhci: bad ep %d\n", epid); - return CC_TRB_ERROR; - } - - slot = &xhci->slots[slotid-1]; - - if (!slot->eps[epid-1]) { - DPRINTF("xhci: slot %d ep %d not enabled\n", slotid, epid); - return CC_EP_NOT_ENABLED_ERROR; - } - - if (xhci_ep_nuke_xfers(xhci, slotid, epid, CC_STOPPED) > 0) { - DPRINTF("xhci: FIXME: endpoint stopped w/ xfers running, " - "data might be lost\n"); - } - - epctx = slot->eps[epid-1]; - - xhci_set_ep_state(xhci, epctx, NULL, EP_STOPPED); - - if (epctx->nr_pstreams) { - xhci_reset_streams(epctx); - } - - return CC_SUCCESS; -} - -static TRBCCode xhci_reset_ep(XHCIState *xhci, unsigned int slotid, - unsigned int epid) -{ - XHCISlot *slot; - XHCIEPContext *epctx; - - trace_usb_xhci_ep_reset(slotid, epid); - assert(slotid >= 1 && slotid <= xhci->numslots); - - if (epid < 1 || epid > 31) { - DPRINTF("xhci: bad ep %d\n", epid); - return CC_TRB_ERROR; - } - - slot = &xhci->slots[slotid-1]; - - if (!slot->eps[epid-1]) { - DPRINTF("xhci: slot %d ep %d not enabled\n", slotid, epid); - return CC_EP_NOT_ENABLED_ERROR; - } - - epctx = slot->eps[epid-1]; - - if (epctx->state != EP_HALTED) { - DPRINTF("xhci: reset EP while EP %d not halted (%d)\n", - epid, epctx->state); - return CC_CONTEXT_STATE_ERROR; - } - - if (xhci_ep_nuke_xfers(xhci, slotid, epid, 0) > 0) { - DPRINTF("xhci: FIXME: endpoint reset w/ xfers running, " - "data might be lost\n"); - } - - if (!xhci->slots[slotid-1].uport || - !xhci->slots[slotid-1].uport->dev || - !xhci->slots[slotid-1].uport->dev->attached) { - return CC_USB_TRANSACTION_ERROR; - } - - xhci_set_ep_state(xhci, epctx, NULL, EP_STOPPED); - - if (epctx->nr_pstreams) { - xhci_reset_streams(epctx); - } - - return CC_SUCCESS; -} - -static TRBCCode xhci_set_ep_dequeue(XHCIState *xhci, unsigned int slotid, - unsigned int epid, unsigned int streamid, - uint64_t pdequeue) -{ - XHCISlot *slot; - XHCIEPContext *epctx; - XHCIStreamContext *sctx; - dma_addr_t dequeue; - - assert(slotid >= 1 && slotid <= xhci->numslots); - - if (epid < 1 || epid > 31) { - DPRINTF("xhci: bad ep %d\n", epid); - return CC_TRB_ERROR; - } - - trace_usb_xhci_ep_set_dequeue(slotid, epid, streamid, pdequeue); - dequeue = xhci_mask64(pdequeue); - - slot = &xhci->slots[slotid-1]; - - if (!slot->eps[epid-1]) { - DPRINTF("xhci: slot %d ep %d not enabled\n", slotid, epid); - return CC_EP_NOT_ENABLED_ERROR; - } - - epctx = slot->eps[epid-1]; - - if (epctx->state != EP_STOPPED) { - DPRINTF("xhci: set EP dequeue pointer while EP %d not stopped\n", epid); - return CC_CONTEXT_STATE_ERROR; - } - - if (epctx->nr_pstreams) { - uint32_t err; - sctx = xhci_find_stream(epctx, streamid, &err); - if (sctx == NULL) { - return err; - } - xhci_ring_init(xhci, &sctx->ring, dequeue & ~0xf); - sctx->ring.ccs = dequeue & 1; - } else { - sctx = NULL; - xhci_ring_init(xhci, &epctx->ring, dequeue & ~0xF); - epctx->ring.ccs = dequeue & 1; - } - - xhci_set_ep_state(xhci, epctx, sctx, EP_STOPPED); - - return CC_SUCCESS; -} - -static int xhci_xfer_create_sgl(XHCITransfer *xfer, int in_xfer) -{ - XHCIState *xhci = xfer->xhci; - int i; - - xfer->int_req = false; - pci_dma_sglist_init(&xfer->sgl, PCI_DEVICE(xhci), xfer->trb_count); - for (i = 0; i < xfer->trb_count; i++) { - XHCITRB *trb = &xfer->trbs[i]; - dma_addr_t addr; - unsigned int chunk = 0; - - if (trb->control & TRB_TR_IOC) { - xfer->int_req = true; - } - - switch (TRB_TYPE(*trb)) { - case TR_DATA: - if ((!(trb->control & TRB_TR_DIR)) != (!in_xfer)) { - DPRINTF("xhci: data direction mismatch for TR_DATA\n"); - goto err; - } - /* fallthrough */ - case TR_NORMAL: - case TR_ISOCH: - addr = xhci_mask64(trb->parameter); - chunk = trb->status & 0x1ffff; - if (trb->control & TRB_TR_IDT) { - if (chunk > 8 || in_xfer) { - DPRINTF("xhci: invalid immediate data TRB\n"); - goto err; - } - qemu_sglist_add(&xfer->sgl, trb->addr, chunk); - } else { - qemu_sglist_add(&xfer->sgl, addr, chunk); - } - break; - } - } - - return 0; - -err: - qemu_sglist_destroy(&xfer->sgl); - xhci_die(xhci); - return -1; -} - -static void xhci_xfer_unmap(XHCITransfer *xfer) -{ - usb_packet_unmap(&xfer->packet, &xfer->sgl); - qemu_sglist_destroy(&xfer->sgl); -} - -static void xhci_xfer_report(XHCITransfer *xfer) -{ - uint32_t edtla = 0; - unsigned int left; - bool reported = 0; - bool shortpkt = 0; - XHCIEvent event = {ER_TRANSFER, CC_SUCCESS}; - XHCIState *xhci = xfer->xhci; - int i; - - left = xfer->packet.actual_length; - - for (i = 0; i < xfer->trb_count; i++) { - XHCITRB *trb = &xfer->trbs[i]; - unsigned int chunk = 0; - - switch (TRB_TYPE(*trb)) { - case TR_DATA: - case TR_NORMAL: - case TR_ISOCH: - chunk = trb->status & 0x1ffff; - if (chunk > left) { - chunk = left; - if (xfer->status == CC_SUCCESS) { - shortpkt = 1; - } - } - left -= chunk; - edtla += chunk; - break; - case TR_STATUS: - reported = 0; - shortpkt = 0; - break; - } - - if (!reported && ((trb->control & TRB_TR_IOC) || - (shortpkt && (trb->control & TRB_TR_ISP)) || - (xfer->status != CC_SUCCESS && left == 0))) { - event.slotid = xfer->slotid; - event.epid = xfer->epid; - event.length = (trb->status & 0x1ffff) - chunk; - event.flags = 0; - event.ptr = trb->addr; - if (xfer->status == CC_SUCCESS) { - event.ccode = shortpkt ? CC_SHORT_PACKET : CC_SUCCESS; - } else { - event.ccode = xfer->status; - } - if (TRB_TYPE(*trb) == TR_EVDATA) { - event.ptr = trb->parameter; - event.flags |= TRB_EV_ED; - event.length = edtla & 0xffffff; - DPRINTF("xhci_xfer_data: EDTLA=%d\n", event.length); - edtla = 0; - } - xhci_event(xhci, &event, TRB_INTR(*trb)); - reported = 1; - if (xfer->status != CC_SUCCESS) { - return; - } - } - - switch (TRB_TYPE(*trb)) { - case TR_SETUP: - reported = 0; - shortpkt = 0; - break; - } - - } -} - -static void xhci_stall_ep(XHCITransfer *xfer) -{ - XHCIState *xhci = xfer->xhci; - XHCISlot *slot = &xhci->slots[xfer->slotid-1]; - XHCIEPContext *epctx = slot->eps[xfer->epid-1]; - uint32_t err; - XHCIStreamContext *sctx; - - if (epctx->nr_pstreams) { - sctx = xhci_find_stream(epctx, xfer->streamid, &err); - if (sctx == NULL) { - return; - } - sctx->ring.dequeue = xfer->trbs[0].addr; - sctx->ring.ccs = xfer->trbs[0].ccs; - xhci_set_ep_state(xhci, epctx, sctx, EP_HALTED); - } else { - epctx->ring.dequeue = xfer->trbs[0].addr; - epctx->ring.ccs = xfer->trbs[0].ccs; - xhci_set_ep_state(xhci, epctx, NULL, EP_HALTED); - } -} - -static int xhci_submit(XHCIState *xhci, XHCITransfer *xfer, - XHCIEPContext *epctx); - -static int xhci_setup_packet(XHCITransfer *xfer) -{ - XHCIState *xhci = xfer->xhci; - USBEndpoint *ep; - int dir; - - dir = xfer->in_xfer ? USB_TOKEN_IN : USB_TOKEN_OUT; - - if (xfer->packet.ep) { - ep = xfer->packet.ep; - } else { - ep = xhci_epid_to_usbep(xhci, xfer->slotid, xfer->epid); - if (!ep) { - DPRINTF("xhci: slot %d has no device\n", - xfer->slotid); - return -1; - } - } - - xhci_xfer_create_sgl(xfer, dir == USB_TOKEN_IN); /* Also sets int_req */ - usb_packet_setup(&xfer->packet, dir, ep, xfer->streamid, - xfer->trbs[0].addr, false, xfer->int_req); - usb_packet_map(&xfer->packet, &xfer->sgl); - DPRINTF("xhci: setup packet pid 0x%x addr %d ep %d\n", - xfer->packet.pid, ep->dev->addr, ep->nr); - return 0; -} - -static int xhci_complete_packet(XHCITransfer *xfer) -{ - if (xfer->packet.status == USB_RET_ASYNC) { - trace_usb_xhci_xfer_async(xfer); - xfer->running_async = 1; - xfer->running_retry = 0; - xfer->complete = 0; - return 0; - } else if (xfer->packet.status == USB_RET_NAK) { - trace_usb_xhci_xfer_nak(xfer); - xfer->running_async = 0; - xfer->running_retry = 1; - xfer->complete = 0; - return 0; - } else { - xfer->running_async = 0; - xfer->running_retry = 0; - xfer->complete = 1; - xhci_xfer_unmap(xfer); - } - - if (xfer->packet.status == USB_RET_SUCCESS) { - trace_usb_xhci_xfer_success(xfer, xfer->packet.actual_length); - xfer->status = CC_SUCCESS; - xhci_xfer_report(xfer); - return 0; - } - - /* error */ - trace_usb_xhci_xfer_error(xfer, xfer->packet.status); - switch (xfer->packet.status) { - case USB_RET_NODEV: - case USB_RET_IOERROR: - xfer->status = CC_USB_TRANSACTION_ERROR; - xhci_xfer_report(xfer); - xhci_stall_ep(xfer); - break; - case USB_RET_STALL: - xfer->status = CC_STALL_ERROR; - xhci_xfer_report(xfer); - xhci_stall_ep(xfer); - break; - case USB_RET_BABBLE: - xfer->status = CC_BABBLE_DETECTED; - xhci_xfer_report(xfer); - xhci_stall_ep(xfer); - break; - default: - DPRINTF("%s: FIXME: status = %d\n", __func__, - xfer->packet.status); - FIXME("unhandled USB_RET_*"); - } - return 0; -} - -static int xhci_fire_ctl_transfer(XHCIState *xhci, XHCITransfer *xfer) -{ - XHCITRB *trb_setup, *trb_status; - uint8_t bmRequestType; - - trb_setup = &xfer->trbs[0]; - trb_status = &xfer->trbs[xfer->trb_count-1]; - - trace_usb_xhci_xfer_start(xfer, xfer->slotid, xfer->epid, xfer->streamid); - - /* at most one Event Data TRB allowed after STATUS */ - if (TRB_TYPE(*trb_status) == TR_EVDATA && xfer->trb_count > 2) { - trb_status--; - } - - /* do some sanity checks */ - if (TRB_TYPE(*trb_setup) != TR_SETUP) { - DPRINTF("xhci: ep0 first TD not SETUP: %d\n", - TRB_TYPE(*trb_setup)); - return -1; - } - if (TRB_TYPE(*trb_status) != TR_STATUS) { - DPRINTF("xhci: ep0 last TD not STATUS: %d\n", - TRB_TYPE(*trb_status)); - return -1; - } - if (!(trb_setup->control & TRB_TR_IDT)) { - DPRINTF("xhci: Setup TRB doesn't have IDT set\n"); - return -1; - } - if ((trb_setup->status & 0x1ffff) != 8) { - DPRINTF("xhci: Setup TRB has bad length (%d)\n", - (trb_setup->status & 0x1ffff)); - return -1; - } - - bmRequestType = trb_setup->parameter; - - xfer->in_xfer = bmRequestType & USB_DIR_IN; - xfer->iso_xfer = false; - xfer->timed_xfer = false; - - if (xhci_setup_packet(xfer) < 0) { - return -1; - } - xfer->packet.parameter = trb_setup->parameter; - - usb_handle_packet(xfer->packet.ep->dev, &xfer->packet); - - xhci_complete_packet(xfer); - if (!xfer->running_async && !xfer->running_retry) { - xhci_kick_ep(xhci, xfer->slotid, xfer->epid, 0); - } - return 0; -} - -static void xhci_calc_intr_kick(XHCIState *xhci, XHCITransfer *xfer, - XHCIEPContext *epctx, uint64_t mfindex) -{ - uint64_t asap = ((mfindex + epctx->interval - 1) & - ~(epctx->interval-1)); - uint64_t kick = epctx->mfindex_last + epctx->interval; - - assert(epctx->interval != 0); - xfer->mfindex_kick = MAX(asap, kick); -} - -static void xhci_calc_iso_kick(XHCIState *xhci, XHCITransfer *xfer, - XHCIEPContext *epctx, uint64_t mfindex) -{ - if (xfer->trbs[0].control & TRB_TR_SIA) { - uint64_t asap = ((mfindex + epctx->interval - 1) & - ~(epctx->interval-1)); - if (asap >= epctx->mfindex_last && - asap <= epctx->mfindex_last + epctx->interval * 4) { - xfer->mfindex_kick = epctx->mfindex_last + epctx->interval; - } else { - xfer->mfindex_kick = asap; - } - } else { - xfer->mfindex_kick = ((xfer->trbs[0].control >> TRB_TR_FRAMEID_SHIFT) - & TRB_TR_FRAMEID_MASK) << 3; - xfer->mfindex_kick |= mfindex & ~0x3fff; - if (xfer->mfindex_kick + 0x100 < mfindex) { - xfer->mfindex_kick += 0x4000; - } - } -} - -static void xhci_check_intr_iso_kick(XHCIState *xhci, XHCITransfer *xfer, - XHCIEPContext *epctx, uint64_t mfindex) -{ - if (xfer->mfindex_kick > mfindex) { - timer_mod(epctx->kick_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + - (xfer->mfindex_kick - mfindex) * 125000); - xfer->running_retry = 1; - } else { - epctx->mfindex_last = xfer->mfindex_kick; - timer_del(epctx->kick_timer); - xfer->running_retry = 0; - } -} - - -static int xhci_submit(XHCIState *xhci, XHCITransfer *xfer, XHCIEPContext *epctx) -{ - uint64_t mfindex; - - DPRINTF("xhci_submit(slotid=%d,epid=%d)\n", xfer->slotid, xfer->epid); - - xfer->in_xfer = epctx->type>>2; - - switch(epctx->type) { - case ET_INTR_OUT: - case ET_INTR_IN: - xfer->pkts = 0; - xfer->iso_xfer = false; - xfer->timed_xfer = true; - mfindex = xhci_mfindex_get(xhci); - xhci_calc_intr_kick(xhci, xfer, epctx, mfindex); - xhci_check_intr_iso_kick(xhci, xfer, epctx, mfindex); - if (xfer->running_retry) { - return -1; - } - break; - case ET_BULK_OUT: - case ET_BULK_IN: - xfer->pkts = 0; - xfer->iso_xfer = false; - xfer->timed_xfer = false; - break; - case ET_ISO_OUT: - case ET_ISO_IN: - xfer->pkts = 1; - xfer->iso_xfer = true; - xfer->timed_xfer = true; - mfindex = xhci_mfindex_get(xhci); - xhci_calc_iso_kick(xhci, xfer, epctx, mfindex); - xhci_check_intr_iso_kick(xhci, xfer, epctx, mfindex); - if (xfer->running_retry) { - return -1; - } - break; - default: - trace_usb_xhci_unimplemented("endpoint type", epctx->type); - return -1; - } - - if (xhci_setup_packet(xfer) < 0) { - return -1; - } - usb_handle_packet(xfer->packet.ep->dev, &xfer->packet); - - xhci_complete_packet(xfer); - if (!xfer->running_async && !xfer->running_retry) { - xhci_kick_ep(xhci, xfer->slotid, xfer->epid, xfer->streamid); - } - return 0; -} - -static int xhci_fire_transfer(XHCIState *xhci, XHCITransfer *xfer, XHCIEPContext *epctx) -{ - trace_usb_xhci_xfer_start(xfer, xfer->slotid, xfer->epid, xfer->streamid); - return xhci_submit(xhci, xfer, epctx); -} - -static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid, - unsigned int epid, unsigned int streamid) -{ - XHCIStreamContext *stctx; - XHCIEPContext *epctx; - XHCIRing *ring; - USBEndpoint *ep = NULL; - uint64_t mfindex; - int length; - int i; - - trace_usb_xhci_ep_kick(slotid, epid, streamid); - assert(slotid >= 1 && slotid <= xhci->numslots); - assert(epid >= 1 && epid <= 31); - - if (!xhci->slots[slotid-1].enabled) { - DPRINTF("xhci: xhci_kick_ep for disabled slot %d\n", slotid); - return; - } - epctx = xhci->slots[slotid-1].eps[epid-1]; - if (!epctx) { - DPRINTF("xhci: xhci_kick_ep for disabled endpoint %d,%d\n", - epid, slotid); - return; - } - - /* If the device has been detached, but the guest has not noticed this - yet the 2 above checks will succeed, but we must NOT continue */ - if (!xhci->slots[slotid - 1].uport || - !xhci->slots[slotid - 1].uport->dev || - !xhci->slots[slotid - 1].uport->dev->attached) { - return; - } - - if (epctx->retry) { - XHCITransfer *xfer = epctx->retry; - - trace_usb_xhci_xfer_retry(xfer); - assert(xfer->running_retry); - if (xfer->timed_xfer) { - /* time to kick the transfer? */ - mfindex = xhci_mfindex_get(xhci); - xhci_check_intr_iso_kick(xhci, xfer, epctx, mfindex); - if (xfer->running_retry) { - return; - } - xfer->timed_xfer = 0; - xfer->running_retry = 1; - } - if (xfer->iso_xfer) { - /* retry iso transfer */ - if (xhci_setup_packet(xfer) < 0) { - return; - } - usb_handle_packet(xfer->packet.ep->dev, &xfer->packet); - assert(xfer->packet.status != USB_RET_NAK); - xhci_complete_packet(xfer); - } else { - /* retry nak'ed transfer */ - if (xhci_setup_packet(xfer) < 0) { - return; - } - usb_handle_packet(xfer->packet.ep->dev, &xfer->packet); - if (xfer->packet.status == USB_RET_NAK) { - return; - } - xhci_complete_packet(xfer); - } - assert(!xfer->running_retry); - epctx->retry = NULL; - } - - if (epctx->state == EP_HALTED) { - DPRINTF("xhci: ep halted, not running schedule\n"); - return; - } - - - if (epctx->nr_pstreams) { - uint32_t err; - stctx = xhci_find_stream(epctx, streamid, &err); - if (stctx == NULL) { - return; - } - ring = &stctx->ring; - xhci_set_ep_state(xhci, epctx, stctx, EP_RUNNING); - } else { - ring = &epctx->ring; - streamid = 0; - xhci_set_ep_state(xhci, epctx, NULL, EP_RUNNING); - } - assert(ring->dequeue != 0); - - while (1) { - XHCITransfer *xfer = &epctx->transfers[epctx->next_xfer]; - if (xfer->running_async || xfer->running_retry) { - break; - } - length = xhci_ring_chain_length(xhci, ring); - if (length < 0) { - break; - } else if (length == 0) { - break; - } - if (xfer->trbs && xfer->trb_alloced < length) { - xfer->trb_count = 0; - xfer->trb_alloced = 0; - g_free(xfer->trbs); - xfer->trbs = NULL; - } - if (!xfer->trbs) { - xfer->trbs = g_new(XHCITRB, length); - xfer->trb_alloced = length; - } - xfer->trb_count = length; - - for (i = 0; i < length; i++) { - assert(xhci_ring_fetch(xhci, ring, &xfer->trbs[i], NULL)); - } - xfer->streamid = streamid; - - if (epid == 1) { - if (xhci_fire_ctl_transfer(xhci, xfer) >= 0) { - epctx->next_xfer = (epctx->next_xfer + 1) % TD_QUEUE; - } else { - DPRINTF("xhci: error firing CTL transfer\n"); - } - } else { - if (xhci_fire_transfer(xhci, xfer, epctx) >= 0) { - epctx->next_xfer = (epctx->next_xfer + 1) % TD_QUEUE; - } else { - if (!xfer->timed_xfer) { - DPRINTF("xhci: error firing data transfer\n"); - } - } - } - - if (epctx->state == EP_HALTED) { - break; - } - if (xfer->running_retry) { - DPRINTF("xhci: xfer nacked, stopping schedule\n"); - epctx->retry = xfer; - break; - } - } - - ep = xhci_epid_to_usbep(xhci, slotid, epid); - if (ep) { - usb_device_flush_ep_queue(ep->dev, ep); - } -} - -static TRBCCode xhci_enable_slot(XHCIState *xhci, unsigned int slotid) -{ - trace_usb_xhci_slot_enable(slotid); - assert(slotid >= 1 && slotid <= xhci->numslots); - xhci->slots[slotid-1].enabled = 1; - xhci->slots[slotid-1].uport = NULL; - memset(xhci->slots[slotid-1].eps, 0, sizeof(XHCIEPContext*)*31); - - return CC_SUCCESS; -} - -static TRBCCode xhci_disable_slot(XHCIState *xhci, unsigned int slotid) -{ - int i; - - trace_usb_xhci_slot_disable(slotid); - assert(slotid >= 1 && slotid <= xhci->numslots); - - for (i = 1; i <= 31; i++) { - if (xhci->slots[slotid-1].eps[i-1]) { - xhci_disable_ep(xhci, slotid, i); - } - } - - xhci->slots[slotid-1].enabled = 0; - xhci->slots[slotid-1].addressed = 0; - xhci->slots[slotid-1].uport = NULL; - return CC_SUCCESS; -} - -static USBPort *xhci_lookup_uport(XHCIState *xhci, uint32_t *slot_ctx) -{ - USBPort *uport; - char path[32]; - int i, pos, port; - - port = (slot_ctx[1]>>16) & 0xFF; - if (port < 1 || port > xhci->numports) { - return NULL; - } - port = xhci->ports[port-1].uport->index+1; - pos = snprintf(path, sizeof(path), "%d", port); - for (i = 0; i < 5; i++) { - port = (slot_ctx[0] >> 4*i) & 0x0f; - if (!port) { - break; - } - pos += snprintf(path + pos, sizeof(path) - pos, ".%d", port); - } - - QTAILQ_FOREACH(uport, &xhci->bus.used, next) { - if (strcmp(uport->path, path) == 0) { - return uport; - } - } - return NULL; -} - -static TRBCCode xhci_address_slot(XHCIState *xhci, unsigned int slotid, - uint64_t pictx, bool bsr) -{ - XHCISlot *slot; - USBPort *uport; - USBDevice *dev; - dma_addr_t ictx, octx, dcbaap; - uint64_t poctx; - uint32_t ictl_ctx[2]; - uint32_t slot_ctx[4]; - uint32_t ep0_ctx[5]; - int i; - TRBCCode res; - - assert(slotid >= 1 && slotid <= xhci->numslots); - - dcbaap = xhci_addr64(xhci->dcbaap_low, xhci->dcbaap_high); - poctx = ldq_le_pci_dma(PCI_DEVICE(xhci), dcbaap + 8 * slotid); - ictx = xhci_mask64(pictx); - octx = xhci_mask64(poctx); - - DPRINTF("xhci: input context at "DMA_ADDR_FMT"\n", ictx); - DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx); - - xhci_dma_read_u32s(xhci, ictx, ictl_ctx, sizeof(ictl_ctx)); - - if (ictl_ctx[0] != 0x0 || ictl_ctx[1] != 0x3) { - DPRINTF("xhci: invalid input context control %08x %08x\n", - ictl_ctx[0], ictl_ctx[1]); - return CC_TRB_ERROR; - } - - xhci_dma_read_u32s(xhci, ictx+32, slot_ctx, sizeof(slot_ctx)); - xhci_dma_read_u32s(xhci, ictx+64, ep0_ctx, sizeof(ep0_ctx)); - - DPRINTF("xhci: input slot context: %08x %08x %08x %08x\n", - slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); - - DPRINTF("xhci: input ep0 context: %08x %08x %08x %08x %08x\n", - ep0_ctx[0], ep0_ctx[1], ep0_ctx[2], ep0_ctx[3], ep0_ctx[4]); - - uport = xhci_lookup_uport(xhci, slot_ctx); - if (uport == NULL) { - DPRINTF("xhci: port not found\n"); - return CC_TRB_ERROR; - } - trace_usb_xhci_slot_address(slotid, uport->path); - - dev = uport->dev; - if (!dev || !dev->attached) { - DPRINTF("xhci: port %s not connected\n", uport->path); - return CC_USB_TRANSACTION_ERROR; - } - - for (i = 0; i < xhci->numslots; i++) { - if (i == slotid-1) { - continue; - } - if (xhci->slots[i].uport == uport) { - DPRINTF("xhci: port %s already assigned to slot %d\n", - uport->path, i+1); - return CC_TRB_ERROR; - } - } - - slot = &xhci->slots[slotid-1]; - slot->uport = uport; - slot->ctx = octx; - - if (bsr) { - slot_ctx[3] = SLOT_DEFAULT << SLOT_STATE_SHIFT; - } else { - USBPacket p; - uint8_t buf[1]; - - slot_ctx[3] = (SLOT_ADDRESSED << SLOT_STATE_SHIFT) | slotid; - usb_device_reset(dev); - memset(&p, 0, sizeof(p)); - usb_packet_addbuf(&p, buf, sizeof(buf)); - usb_packet_setup(&p, USB_TOKEN_OUT, - usb_ep_get(dev, USB_TOKEN_OUT, 0), 0, - 0, false, false); - usb_device_handle_control(dev, &p, - DeviceOutRequest | USB_REQ_SET_ADDRESS, - slotid, 0, 0, NULL); - assert(p.status != USB_RET_ASYNC); - } - - res = xhci_enable_ep(xhci, slotid, 1, octx+32, ep0_ctx); - - DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", - slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); - DPRINTF("xhci: output ep0 context: %08x %08x %08x %08x %08x\n", - ep0_ctx[0], ep0_ctx[1], ep0_ctx[2], ep0_ctx[3], ep0_ctx[4]); - - xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); - xhci_dma_write_u32s(xhci, octx+32, ep0_ctx, sizeof(ep0_ctx)); - - xhci->slots[slotid-1].addressed = 1; - return res; -} - - -static TRBCCode xhci_configure_slot(XHCIState *xhci, unsigned int slotid, - uint64_t pictx, bool dc) -{ - dma_addr_t ictx, octx; - uint32_t ictl_ctx[2]; - uint32_t slot_ctx[4]; - uint32_t islot_ctx[4]; - uint32_t ep_ctx[5]; - int i; - TRBCCode res; - - trace_usb_xhci_slot_configure(slotid); - assert(slotid >= 1 && slotid <= xhci->numslots); - - ictx = xhci_mask64(pictx); - octx = xhci->slots[slotid-1].ctx; - - DPRINTF("xhci: input context at "DMA_ADDR_FMT"\n", ictx); - DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx); - - if (dc) { - for (i = 2; i <= 31; i++) { - if (xhci->slots[slotid-1].eps[i-1]) { - xhci_disable_ep(xhci, slotid, i); - } - } - - xhci_dma_read_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); - slot_ctx[3] &= ~(SLOT_STATE_MASK << SLOT_STATE_SHIFT); - slot_ctx[3] |= SLOT_ADDRESSED << SLOT_STATE_SHIFT; - DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", - slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); - xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); - - return CC_SUCCESS; - } - - xhci_dma_read_u32s(xhci, ictx, ictl_ctx, sizeof(ictl_ctx)); - - if ((ictl_ctx[0] & 0x3) != 0x0 || (ictl_ctx[1] & 0x3) != 0x1) { - DPRINTF("xhci: invalid input context control %08x %08x\n", - ictl_ctx[0], ictl_ctx[1]); - return CC_TRB_ERROR; - } - - xhci_dma_read_u32s(xhci, ictx+32, islot_ctx, sizeof(islot_ctx)); - xhci_dma_read_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); - - if (SLOT_STATE(slot_ctx[3]) < SLOT_ADDRESSED) { - DPRINTF("xhci: invalid slot state %08x\n", slot_ctx[3]); - return CC_CONTEXT_STATE_ERROR; - } - - xhci_free_device_streams(xhci, slotid, ictl_ctx[0] | ictl_ctx[1]); - - for (i = 2; i <= 31; i++) { - if (ictl_ctx[0] & (1<<i)) { - xhci_disable_ep(xhci, slotid, i); - } - if (ictl_ctx[1] & (1<<i)) { - xhci_dma_read_u32s(xhci, ictx+32+(32*i), ep_ctx, sizeof(ep_ctx)); - DPRINTF("xhci: input ep%d.%d context: %08x %08x %08x %08x %08x\n", - i/2, i%2, ep_ctx[0], ep_ctx[1], ep_ctx[2], - ep_ctx[3], ep_ctx[4]); - xhci_disable_ep(xhci, slotid, i); - res = xhci_enable_ep(xhci, slotid, i, octx+(32*i), ep_ctx); - if (res != CC_SUCCESS) { - return res; - } - DPRINTF("xhci: output ep%d.%d context: %08x %08x %08x %08x %08x\n", - i/2, i%2, ep_ctx[0], ep_ctx[1], ep_ctx[2], - ep_ctx[3], ep_ctx[4]); - xhci_dma_write_u32s(xhci, octx+(32*i), ep_ctx, sizeof(ep_ctx)); - } - } - - res = xhci_alloc_device_streams(xhci, slotid, ictl_ctx[1]); - if (res != CC_SUCCESS) { - for (i = 2; i <= 31; i++) { - if (ictl_ctx[1] & (1u << i)) { - xhci_disable_ep(xhci, slotid, i); - } - } - return res; - } - - slot_ctx[3] &= ~(SLOT_STATE_MASK << SLOT_STATE_SHIFT); - slot_ctx[3] |= SLOT_CONFIGURED << SLOT_STATE_SHIFT; - slot_ctx[0] &= ~(SLOT_CONTEXT_ENTRIES_MASK << SLOT_CONTEXT_ENTRIES_SHIFT); - slot_ctx[0] |= islot_ctx[0] & (SLOT_CONTEXT_ENTRIES_MASK << - SLOT_CONTEXT_ENTRIES_SHIFT); - DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", - slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); - - xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); - - return CC_SUCCESS; -} - - -static TRBCCode xhci_evaluate_slot(XHCIState *xhci, unsigned int slotid, - uint64_t pictx) -{ - dma_addr_t ictx, octx; - uint32_t ictl_ctx[2]; - uint32_t iep0_ctx[5]; - uint32_t ep0_ctx[5]; - uint32_t islot_ctx[4]; - uint32_t slot_ctx[4]; - - trace_usb_xhci_slot_evaluate(slotid); - assert(slotid >= 1 && slotid <= xhci->numslots); - - ictx = xhci_mask64(pictx); - octx = xhci->slots[slotid-1].ctx; - - DPRINTF("xhci: input context at "DMA_ADDR_FMT"\n", ictx); - DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx); - - xhci_dma_read_u32s(xhci, ictx, ictl_ctx, sizeof(ictl_ctx)); - - if (ictl_ctx[0] != 0x0 || ictl_ctx[1] & ~0x3) { - DPRINTF("xhci: invalid input context control %08x %08x\n", - ictl_ctx[0], ictl_ctx[1]); - return CC_TRB_ERROR; - } - - if (ictl_ctx[1] & 0x1) { - xhci_dma_read_u32s(xhci, ictx+32, islot_ctx, sizeof(islot_ctx)); - - DPRINTF("xhci: input slot context: %08x %08x %08x %08x\n", - islot_ctx[0], islot_ctx[1], islot_ctx[2], islot_ctx[3]); - - xhci_dma_read_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); - - slot_ctx[1] &= ~0xFFFF; /* max exit latency */ - slot_ctx[1] |= islot_ctx[1] & 0xFFFF; - slot_ctx[2] &= ~0xFF00000; /* interrupter target */ - slot_ctx[2] |= islot_ctx[2] & 0xFF000000; - - DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", - slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); - - xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); - } - - if (ictl_ctx[1] & 0x2) { - xhci_dma_read_u32s(xhci, ictx+64, iep0_ctx, sizeof(iep0_ctx)); - - DPRINTF("xhci: input ep0 context: %08x %08x %08x %08x %08x\n", - iep0_ctx[0], iep0_ctx[1], iep0_ctx[2], - iep0_ctx[3], iep0_ctx[4]); - - xhci_dma_read_u32s(xhci, octx+32, ep0_ctx, sizeof(ep0_ctx)); - - ep0_ctx[1] &= ~0xFFFF0000; /* max packet size*/ - ep0_ctx[1] |= iep0_ctx[1] & 0xFFFF0000; - - DPRINTF("xhci: output ep0 context: %08x %08x %08x %08x %08x\n", - ep0_ctx[0], ep0_ctx[1], ep0_ctx[2], ep0_ctx[3], ep0_ctx[4]); - - xhci_dma_write_u32s(xhci, octx+32, ep0_ctx, sizeof(ep0_ctx)); - } - - return CC_SUCCESS; -} - -static TRBCCode xhci_reset_slot(XHCIState *xhci, unsigned int slotid) -{ - uint32_t slot_ctx[4]; - dma_addr_t octx; - int i; - - trace_usb_xhci_slot_reset(slotid); - assert(slotid >= 1 && slotid <= xhci->numslots); - - octx = xhci->slots[slotid-1].ctx; - - DPRINTF("xhci: output context at "DMA_ADDR_FMT"\n", octx); - - for (i = 2; i <= 31; i++) { - if (xhci->slots[slotid-1].eps[i-1]) { - xhci_disable_ep(xhci, slotid, i); - } - } - - xhci_dma_read_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); - slot_ctx[3] &= ~(SLOT_STATE_MASK << SLOT_STATE_SHIFT); - slot_ctx[3] |= SLOT_DEFAULT << SLOT_STATE_SHIFT; - DPRINTF("xhci: output slot context: %08x %08x %08x %08x\n", - slot_ctx[0], slot_ctx[1], slot_ctx[2], slot_ctx[3]); - xhci_dma_write_u32s(xhci, octx, slot_ctx, sizeof(slot_ctx)); - - return CC_SUCCESS; -} - -static unsigned int xhci_get_slot(XHCIState *xhci, XHCIEvent *event, XHCITRB *trb) -{ - unsigned int slotid; - slotid = (trb->control >> TRB_CR_SLOTID_SHIFT) & TRB_CR_SLOTID_MASK; - if (slotid < 1 || slotid > xhci->numslots) { - DPRINTF("xhci: bad slot id %d\n", slotid); - event->ccode = CC_TRB_ERROR; - return 0; - } else if (!xhci->slots[slotid-1].enabled) { - DPRINTF("xhci: slot id %d not enabled\n", slotid); - event->ccode = CC_SLOT_NOT_ENABLED_ERROR; - return 0; - } - return slotid; -} - -/* cleanup slot state on usb device detach */ -static void xhci_detach_slot(XHCIState *xhci, USBPort *uport) -{ - int slot, ep; - - for (slot = 0; slot < xhci->numslots; slot++) { - if (xhci->slots[slot].uport == uport) { - break; - } - } - if (slot == xhci->numslots) { - return; - } - - for (ep = 0; ep < 31; ep++) { - if (xhci->slots[slot].eps[ep]) { - xhci_ep_nuke_xfers(xhci, slot + 1, ep + 1, 0); - } - } - xhci->slots[slot].uport = NULL; -} - -static TRBCCode xhci_get_port_bandwidth(XHCIState *xhci, uint64_t pctx) -{ - dma_addr_t ctx; - uint8_t bw_ctx[xhci->numports+1]; - - DPRINTF("xhci_get_port_bandwidth()\n"); - - ctx = xhci_mask64(pctx); - - DPRINTF("xhci: bandwidth context at "DMA_ADDR_FMT"\n", ctx); - - /* TODO: actually implement real values here */ - bw_ctx[0] = 0; - memset(&bw_ctx[1], 80, xhci->numports); /* 80% */ - pci_dma_write(PCI_DEVICE(xhci), ctx, bw_ctx, sizeof(bw_ctx)); - - return CC_SUCCESS; -} - -static uint32_t rotl(uint32_t v, unsigned count) -{ - count &= 31; - return (v << count) | (v >> (32 - count)); -} - - -static uint32_t xhci_nec_challenge(uint32_t hi, uint32_t lo) -{ - uint32_t val; - val = rotl(lo - 0x49434878, 32 - ((hi>>8) & 0x1F)); - val += rotl(lo + 0x49434878, hi & 0x1F); - val -= rotl(hi ^ 0x49434878, (lo >> 16) & 0x1F); - return ~val; -} - -static void xhci_via_challenge(XHCIState *xhci, uint64_t addr) -{ - PCIDevice *pci_dev = PCI_DEVICE(xhci); - uint32_t buf[8]; - uint32_t obuf[8]; - dma_addr_t paddr = xhci_mask64(addr); - - pci_dma_read(pci_dev, paddr, &buf, 32); - - memcpy(obuf, buf, sizeof(obuf)); - - if ((buf[0] & 0xff) == 2) { - obuf[0] = 0x49932000 + 0x54dc200 * buf[2] + 0x7429b578 * buf[3]; - obuf[0] |= (buf[2] * buf[3]) & 0xff; - obuf[1] = 0x0132bb37 + 0xe89 * buf[2] + 0xf09 * buf[3]; - obuf[2] = 0x0066c2e9 + 0x2091 * buf[2] + 0x19bd * buf[3]; - obuf[3] = 0xd5281342 + 0x2cc9691 * buf[2] + 0x2367662 * buf[3]; - obuf[4] = 0x0123c75c + 0x1595 * buf[2] + 0x19ec * buf[3]; - obuf[5] = 0x00f695de + 0x26fd * buf[2] + 0x3e9 * buf[3]; - obuf[6] = obuf[2] ^ obuf[3] ^ 0x29472956; - obuf[7] = obuf[2] ^ obuf[3] ^ 0x65866593; - } - - pci_dma_write(pci_dev, paddr, &obuf, 32); -} - -static void xhci_process_commands(XHCIState *xhci) -{ - XHCITRB trb; - TRBType type; - XHCIEvent event = {ER_COMMAND_COMPLETE, CC_SUCCESS}; - dma_addr_t addr; - unsigned int i, slotid = 0; - - DPRINTF("xhci_process_commands()\n"); - if (!xhci_running(xhci)) { - DPRINTF("xhci_process_commands() called while xHC stopped or paused\n"); - return; - } - - xhci->crcr_low |= CRCR_CRR; - - while ((type = xhci_ring_fetch(xhci, &xhci->cmd_ring, &trb, &addr))) { - event.ptr = addr; - switch (type) { - case CR_ENABLE_SLOT: - for (i = 0; i < xhci->numslots; i++) { - if (!xhci->slots[i].enabled) { - break; - } - } - if (i >= xhci->numslots) { - DPRINTF("xhci: no device slots available\n"); - event.ccode = CC_NO_SLOTS_ERROR; - } else { - slotid = i+1; - event.ccode = xhci_enable_slot(xhci, slotid); - } - break; - case CR_DISABLE_SLOT: - slotid = xhci_get_slot(xhci, &event, &trb); - if (slotid) { - event.ccode = xhci_disable_slot(xhci, slotid); - } - break; - case CR_ADDRESS_DEVICE: - slotid = xhci_get_slot(xhci, &event, &trb); - if (slotid) { - event.ccode = xhci_address_slot(xhci, slotid, trb.parameter, - trb.control & TRB_CR_BSR); - } - break; - case CR_CONFIGURE_ENDPOINT: - slotid = xhci_get_slot(xhci, &event, &trb); - if (slotid) { - event.ccode = xhci_configure_slot(xhci, slotid, trb.parameter, - trb.control & TRB_CR_DC); - } - break; - case CR_EVALUATE_CONTEXT: - slotid = xhci_get_slot(xhci, &event, &trb); - if (slotid) { - event.ccode = xhci_evaluate_slot(xhci, slotid, trb.parameter); - } - break; - case CR_STOP_ENDPOINT: - slotid = xhci_get_slot(xhci, &event, &trb); - if (slotid) { - unsigned int epid = (trb.control >> TRB_CR_EPID_SHIFT) - & TRB_CR_EPID_MASK; - event.ccode = xhci_stop_ep(xhci, slotid, epid); - } - break; - case CR_RESET_ENDPOINT: - slotid = xhci_get_slot(xhci, &event, &trb); - if (slotid) { - unsigned int epid = (trb.control >> TRB_CR_EPID_SHIFT) - & TRB_CR_EPID_MASK; - event.ccode = xhci_reset_ep(xhci, slotid, epid); - } - break; - case CR_SET_TR_DEQUEUE: - slotid = xhci_get_slot(xhci, &event, &trb); - if (slotid) { - unsigned int epid = (trb.control >> TRB_CR_EPID_SHIFT) - & TRB_CR_EPID_MASK; - unsigned int streamid = (trb.status >> 16) & 0xffff; - event.ccode = xhci_set_ep_dequeue(xhci, slotid, - epid, streamid, - trb.parameter); - } - break; - case CR_RESET_DEVICE: - slotid = xhci_get_slot(xhci, &event, &trb); - if (slotid) { - event.ccode = xhci_reset_slot(xhci, slotid); - } - break; - case CR_GET_PORT_BANDWIDTH: - event.ccode = xhci_get_port_bandwidth(xhci, trb.parameter); - break; - case CR_VENDOR_VIA_CHALLENGE_RESPONSE: - xhci_via_challenge(xhci, trb.parameter); - break; - case CR_VENDOR_NEC_FIRMWARE_REVISION: - event.type = 48; /* NEC reply */ - event.length = 0x3025; - break; - case CR_VENDOR_NEC_CHALLENGE_RESPONSE: - { - uint32_t chi = trb.parameter >> 32; - uint32_t clo = trb.parameter; - uint32_t val = xhci_nec_challenge(chi, clo); - event.length = val & 0xFFFF; - event.epid = val >> 16; - slotid = val >> 24; - event.type = 48; /* NEC reply */ - } - break; - default: - trace_usb_xhci_unimplemented("command", type); - event.ccode = CC_TRB_ERROR; - break; - } - event.slotid = slotid; - xhci_event(xhci, &event, 0); - } -} - -static bool xhci_port_have_device(XHCIPort *port) -{ - if (!port->uport->dev || !port->uport->dev->attached) { - return false; /* no device present */ - } - if (!((1 << port->uport->dev->speed) & port->speedmask)) { - return false; /* speed mismatch */ - } - return true; -} - -static void xhci_port_notify(XHCIPort *port, uint32_t bits) -{ - XHCIEvent ev = { ER_PORT_STATUS_CHANGE, CC_SUCCESS, - port->portnr << 24 }; - - if ((port->portsc & bits) == bits) { - return; - } - trace_usb_xhci_port_notify(port->portnr, bits); - port->portsc |= bits; - if (!xhci_running(port->xhci)) { - return; - } - xhci_event(port->xhci, &ev, 0); -} - -static void xhci_port_update(XHCIPort *port, int is_detach) -{ - uint32_t pls = PLS_RX_DETECT; - - port->portsc = PORTSC_PP; - if (!is_detach && xhci_port_have_device(port)) { - port->portsc |= PORTSC_CCS; - switch (port->uport->dev->speed) { - case USB_SPEED_LOW: - port->portsc |= PORTSC_SPEED_LOW; - pls = PLS_POLLING; - break; - case USB_SPEED_FULL: - port->portsc |= PORTSC_SPEED_FULL; - pls = PLS_POLLING; - break; - case USB_SPEED_HIGH: - port->portsc |= PORTSC_SPEED_HIGH; - pls = PLS_POLLING; - break; - case USB_SPEED_SUPER: - port->portsc |= PORTSC_SPEED_SUPER; - port->portsc |= PORTSC_PED; - pls = PLS_U0; - break; - } - } - set_field(&port->portsc, pls, PORTSC_PLS); - trace_usb_xhci_port_link(port->portnr, pls); - xhci_port_notify(port, PORTSC_CSC); -} - -static void xhci_port_reset(XHCIPort *port, bool warm_reset) -{ - trace_usb_xhci_port_reset(port->portnr, warm_reset); - - if (!xhci_port_have_device(port)) { - return; - } - - usb_device_reset(port->uport->dev); - - switch (port->uport->dev->speed) { - case USB_SPEED_SUPER: - if (warm_reset) { - port->portsc |= PORTSC_WRC; - } - /* fall through */ - case USB_SPEED_LOW: - case USB_SPEED_FULL: - case USB_SPEED_HIGH: - set_field(&port->portsc, PLS_U0, PORTSC_PLS); - trace_usb_xhci_port_link(port->portnr, PLS_U0); - port->portsc |= PORTSC_PED; - break; - } - - port->portsc &= ~PORTSC_PR; - xhci_port_notify(port, PORTSC_PRC); -} - -static void xhci_reset(DeviceState *dev) -{ - XHCIState *xhci = XHCI(dev); - int i; - - trace_usb_xhci_reset(); - if (!(xhci->usbsts & USBSTS_HCH)) { - DPRINTF("xhci: reset while running!\n"); - } - - xhci->usbcmd = 0; - xhci->usbsts = USBSTS_HCH; - xhci->dnctrl = 0; - xhci->crcr_low = 0; - xhci->crcr_high = 0; - xhci->dcbaap_low = 0; - xhci->dcbaap_high = 0; - xhci->config = 0; - - for (i = 0; i < xhci->numslots; i++) { - xhci_disable_slot(xhci, i+1); - } - - for (i = 0; i < xhci->numports; i++) { - xhci_port_update(xhci->ports + i, 0); - } - - for (i = 0; i < xhci->numintrs; i++) { - xhci->intr[i].iman = 0; - xhci->intr[i].imod = 0; - xhci->intr[i].erstsz = 0; - xhci->intr[i].erstba_low = 0; - xhci->intr[i].erstba_high = 0; - xhci->intr[i].erdp_low = 0; - xhci->intr[i].erdp_high = 0; - xhci->intr[i].msix_used = 0; - - xhci->intr[i].er_ep_idx = 0; - xhci->intr[i].er_pcs = 1; - xhci->intr[i].er_full = 0; - xhci->intr[i].ev_buffer_put = 0; - xhci->intr[i].ev_buffer_get = 0; - } - - xhci->mfindex_start = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); - xhci_mfwrap_update(xhci); -} - -static uint64_t xhci_cap_read(void *ptr, hwaddr reg, unsigned size) -{ - XHCIState *xhci = ptr; - uint32_t ret; - - switch (reg) { - case 0x00: /* HCIVERSION, CAPLENGTH */ - ret = 0x01000000 | LEN_CAP; - break; - case 0x04: /* HCSPARAMS 1 */ - ret = ((xhci->numports_2+xhci->numports_3)<<24) - | (xhci->numintrs<<8) | xhci->numslots; - break; - case 0x08: /* HCSPARAMS 2 */ - ret = 0x0000000f; - break; - case 0x0c: /* HCSPARAMS 3 */ - ret = 0x00000000; - break; - case 0x10: /* HCCPARAMS */ - if (sizeof(dma_addr_t) == 4) { - ret = 0x00080000 | (xhci->max_pstreams_mask << 12); - } else { - ret = 0x00080001 | (xhci->max_pstreams_mask << 12); - } - break; - case 0x14: /* DBOFF */ - ret = OFF_DOORBELL; - break; - case 0x18: /* RTSOFF */ - ret = OFF_RUNTIME; - break; - - /* extended capabilities */ - case 0x20: /* Supported Protocol:00 */ - ret = 0x02000402; /* USB 2.0 */ - break; - case 0x24: /* Supported Protocol:04 */ - ret = 0x20425355; /* "USB " */ - break; - case 0x28: /* Supported Protocol:08 */ - if (xhci_get_flag(xhci, XHCI_FLAG_SS_FIRST)) { - ret = (xhci->numports_2<<8) | (xhci->numports_3+1); - } else { - ret = (xhci->numports_2<<8) | 1; - } - break; - case 0x2c: /* Supported Protocol:0c */ - ret = 0x00000000; /* reserved */ - break; - case 0x30: /* Supported Protocol:00 */ - ret = 0x03000002; /* USB 3.0 */ - break; - case 0x34: /* Supported Protocol:04 */ - ret = 0x20425355; /* "USB " */ - break; - case 0x38: /* Supported Protocol:08 */ - if (xhci_get_flag(xhci, XHCI_FLAG_SS_FIRST)) { - ret = (xhci->numports_3<<8) | 1; - } else { - ret = (xhci->numports_3<<8) | (xhci->numports_2+1); - } - break; - case 0x3c: /* Supported Protocol:0c */ - ret = 0x00000000; /* reserved */ - break; - default: - trace_usb_xhci_unimplemented("cap read", reg); - ret = 0; - } - - trace_usb_xhci_cap_read(reg, ret); - return ret; -} - -static uint64_t xhci_port_read(void *ptr, hwaddr reg, unsigned size) -{ - XHCIPort *port = ptr; - uint32_t ret; - - switch (reg) { - case 0x00: /* PORTSC */ - ret = port->portsc; - break; - case 0x04: /* PORTPMSC */ - case 0x08: /* PORTLI */ - ret = 0; - break; - case 0x0c: /* reserved */ - default: - trace_usb_xhci_unimplemented("port read", reg); - ret = 0; - } - - trace_usb_xhci_port_read(port->portnr, reg, ret); - return ret; -} - -static void xhci_port_write(void *ptr, hwaddr reg, - uint64_t val, unsigned size) -{ - XHCIPort *port = ptr; - uint32_t portsc, notify; - - trace_usb_xhci_port_write(port->portnr, reg, val); - - switch (reg) { - case 0x00: /* PORTSC */ - /* write-1-to-start bits */ - if (val & PORTSC_WPR) { - xhci_port_reset(port, true); - break; - } - if (val & PORTSC_PR) { - xhci_port_reset(port, false); - break; - } - - portsc = port->portsc; - notify = 0; - /* write-1-to-clear bits*/ - portsc &= ~(val & (PORTSC_CSC|PORTSC_PEC|PORTSC_WRC|PORTSC_OCC| - PORTSC_PRC|PORTSC_PLC|PORTSC_CEC)); - if (val & PORTSC_LWS) { - /* overwrite PLS only when LWS=1 */ - uint32_t old_pls = get_field(port->portsc, PORTSC_PLS); - uint32_t new_pls = get_field(val, PORTSC_PLS); - switch (new_pls) { - case PLS_U0: - if (old_pls != PLS_U0) { - set_field(&portsc, new_pls, PORTSC_PLS); - trace_usb_xhci_port_link(port->portnr, new_pls); - notify = PORTSC_PLC; - } - break; - case PLS_U3: - if (old_pls < PLS_U3) { - set_field(&portsc, new_pls, PORTSC_PLS); - trace_usb_xhci_port_link(port->portnr, new_pls); - } - break; - case PLS_RESUME: - /* windows does this for some reason, don't spam stderr */ - break; - default: - DPRINTF("%s: ignore pls write (old %d, new %d)\n", - __func__, old_pls, new_pls); - break; - } - } - /* read/write bits */ - portsc &= ~(PORTSC_PP|PORTSC_WCE|PORTSC_WDE|PORTSC_WOE); - portsc |= (val & (PORTSC_PP|PORTSC_WCE|PORTSC_WDE|PORTSC_WOE)); - port->portsc = portsc; - if (notify) { - xhci_port_notify(port, notify); - } - break; - case 0x04: /* PORTPMSC */ - case 0x08: /* PORTLI */ - default: - trace_usb_xhci_unimplemented("port write", reg); - } -} - -static uint64_t xhci_oper_read(void *ptr, hwaddr reg, unsigned size) -{ - XHCIState *xhci = ptr; - uint32_t ret; - - switch (reg) { - case 0x00: /* USBCMD */ - ret = xhci->usbcmd; - break; - case 0x04: /* USBSTS */ - ret = xhci->usbsts; - break; - case 0x08: /* PAGESIZE */ - ret = 1; /* 4KiB */ - break; - case 0x14: /* DNCTRL */ - ret = xhci->dnctrl; - break; - case 0x18: /* CRCR low */ - ret = xhci->crcr_low & ~0xe; - break; - case 0x1c: /* CRCR high */ - ret = xhci->crcr_high; - break; - case 0x30: /* DCBAAP low */ - ret = xhci->dcbaap_low; - break; - case 0x34: /* DCBAAP high */ - ret = xhci->dcbaap_high; - break; - case 0x38: /* CONFIG */ - ret = xhci->config; - break; - default: - trace_usb_xhci_unimplemented("oper read", reg); - ret = 0; - } - - trace_usb_xhci_oper_read(reg, ret); - return ret; -} - -static void xhci_oper_write(void *ptr, hwaddr reg, - uint64_t val, unsigned size) -{ - XHCIState *xhci = ptr; - DeviceState *d = DEVICE(ptr); - - trace_usb_xhci_oper_write(reg, val); - - switch (reg) { - case 0x00: /* USBCMD */ - if ((val & USBCMD_RS) && !(xhci->usbcmd & USBCMD_RS)) { - xhci_run(xhci); - } else if (!(val & USBCMD_RS) && (xhci->usbcmd & USBCMD_RS)) { - xhci_stop(xhci); - } - if (val & USBCMD_CSS) { - /* save state */ - xhci->usbsts &= ~USBSTS_SRE; - } - if (val & USBCMD_CRS) { - /* restore state */ - xhci->usbsts |= USBSTS_SRE; - } - xhci->usbcmd = val & 0xc0f; - xhci_mfwrap_update(xhci); - if (val & USBCMD_HCRST) { - xhci_reset(d); - } - xhci_intx_update(xhci); - break; - - case 0x04: /* USBSTS */ - /* these bits are write-1-to-clear */ - xhci->usbsts &= ~(val & (USBSTS_HSE|USBSTS_EINT|USBSTS_PCD|USBSTS_SRE)); - xhci_intx_update(xhci); - break; - - case 0x14: /* DNCTRL */ - xhci->dnctrl = val & 0xffff; - break; - case 0x18: /* CRCR low */ - xhci->crcr_low = (val & 0xffffffcf) | (xhci->crcr_low & CRCR_CRR); - break; - case 0x1c: /* CRCR high */ - xhci->crcr_high = val; - if (xhci->crcr_low & (CRCR_CA|CRCR_CS) && (xhci->crcr_low & CRCR_CRR)) { - XHCIEvent event = {ER_COMMAND_COMPLETE, CC_COMMAND_RING_STOPPED}; - xhci->crcr_low &= ~CRCR_CRR; - xhci_event(xhci, &event, 0); - DPRINTF("xhci: command ring stopped (CRCR=%08x)\n", xhci->crcr_low); - } else { - dma_addr_t base = xhci_addr64(xhci->crcr_low & ~0x3f, val); - xhci_ring_init(xhci, &xhci->cmd_ring, base); - } - xhci->crcr_low &= ~(CRCR_CA | CRCR_CS); - break; - case 0x30: /* DCBAAP low */ - xhci->dcbaap_low = val & 0xffffffc0; - break; - case 0x34: /* DCBAAP high */ - xhci->dcbaap_high = val; - break; - case 0x38: /* CONFIG */ - xhci->config = val & 0xff; - break; - default: - trace_usb_xhci_unimplemented("oper write", reg); - } -} - -static uint64_t xhci_runtime_read(void *ptr, hwaddr reg, - unsigned size) -{ - XHCIState *xhci = ptr; - uint32_t ret = 0; - - if (reg < 0x20) { - switch (reg) { - case 0x00: /* MFINDEX */ - ret = xhci_mfindex_get(xhci) & 0x3fff; - break; - default: - trace_usb_xhci_unimplemented("runtime read", reg); - break; - } - } else { - int v = (reg - 0x20) / 0x20; - XHCIInterrupter *intr = &xhci->intr[v]; - switch (reg & 0x1f) { - case 0x00: /* IMAN */ - ret = intr->iman; - break; - case 0x04: /* IMOD */ - ret = intr->imod; - break; - case 0x08: /* ERSTSZ */ - ret = intr->erstsz; - break; - case 0x10: /* ERSTBA low */ - ret = intr->erstba_low; - break; - case 0x14: /* ERSTBA high */ - ret = intr->erstba_high; - break; - case 0x18: /* ERDP low */ - ret = intr->erdp_low; - break; - case 0x1c: /* ERDP high */ - ret = intr->erdp_high; - break; - } - } - - trace_usb_xhci_runtime_read(reg, ret); - return ret; -} - -static void xhci_runtime_write(void *ptr, hwaddr reg, - uint64_t val, unsigned size) -{ - XHCIState *xhci = ptr; - int v = (reg - 0x20) / 0x20; - XHCIInterrupter *intr = &xhci->intr[v]; - trace_usb_xhci_runtime_write(reg, val); - - if (reg < 0x20) { - trace_usb_xhci_unimplemented("runtime write", reg); - return; - } - - switch (reg & 0x1f) { - case 0x00: /* IMAN */ - if (val & IMAN_IP) { - intr->iman &= ~IMAN_IP; - } - intr->iman &= ~IMAN_IE; - intr->iman |= val & IMAN_IE; - if (v == 0) { - xhci_intx_update(xhci); - } - xhci_msix_update(xhci, v); - break; - case 0x04: /* IMOD */ - intr->imod = val; - break; - case 0x08: /* ERSTSZ */ - intr->erstsz = val & 0xffff; - break; - case 0x10: /* ERSTBA low */ - /* XXX NEC driver bug: it doesn't align this to 64 bytes - intr->erstba_low = val & 0xffffffc0; */ - intr->erstba_low = val & 0xfffffff0; - break; - case 0x14: /* ERSTBA high */ - intr->erstba_high = val; - xhci_er_reset(xhci, v); - break; - case 0x18: /* ERDP low */ - if (val & ERDP_EHB) { - intr->erdp_low &= ~ERDP_EHB; - } - intr->erdp_low = (val & ~ERDP_EHB) | (intr->erdp_low & ERDP_EHB); - break; - case 0x1c: /* ERDP high */ - intr->erdp_high = val; - xhci_events_update(xhci, v); - break; - default: - trace_usb_xhci_unimplemented("oper write", reg); - } -} - -static uint64_t xhci_doorbell_read(void *ptr, hwaddr reg, - unsigned size) -{ - /* doorbells always read as 0 */ - trace_usb_xhci_doorbell_read(reg, 0); - return 0; -} - -static void xhci_doorbell_write(void *ptr, hwaddr reg, - uint64_t val, unsigned size) -{ - XHCIState *xhci = ptr; - unsigned int epid, streamid; - - trace_usb_xhci_doorbell_write(reg, val); - - if (!xhci_running(xhci)) { - DPRINTF("xhci: wrote doorbell while xHC stopped or paused\n"); - return; - } - - reg >>= 2; - - if (reg == 0) { - if (val == 0) { - xhci_process_commands(xhci); - } else { - DPRINTF("xhci: bad doorbell 0 write: 0x%x\n", - (uint32_t)val); - } - } else { - epid = val & 0xff; - streamid = (val >> 16) & 0xffff; - if (reg > xhci->numslots) { - DPRINTF("xhci: bad doorbell %d\n", (int)reg); - } else if (epid > 31) { - DPRINTF("xhci: bad doorbell %d write: 0x%x\n", - (int)reg, (uint32_t)val); - } else { - xhci_kick_ep(xhci, reg, epid, streamid); - } - } -} - -static void xhci_cap_write(void *opaque, hwaddr addr, uint64_t val, - unsigned width) -{ - /* nothing */ -} - -static const MemoryRegionOps xhci_cap_ops = { - .read = xhci_cap_read, - .write = xhci_cap_write, - .valid.min_access_size = 1, - .valid.max_access_size = 4, - .impl.min_access_size = 4, - .impl.max_access_size = 4, - .endianness = DEVICE_LITTLE_ENDIAN, -}; - -static const MemoryRegionOps xhci_oper_ops = { - .read = xhci_oper_read, - .write = xhci_oper_write, - .valid.min_access_size = 4, - .valid.max_access_size = 4, - .endianness = DEVICE_LITTLE_ENDIAN, -}; - -static const MemoryRegionOps xhci_port_ops = { - .read = xhci_port_read, - .write = xhci_port_write, - .valid.min_access_size = 4, - .valid.max_access_size = 4, - .endianness = DEVICE_LITTLE_ENDIAN, -}; - -static const MemoryRegionOps xhci_runtime_ops = { - .read = xhci_runtime_read, - .write = xhci_runtime_write, - .valid.min_access_size = 4, - .valid.max_access_size = 4, - .endianness = DEVICE_LITTLE_ENDIAN, -}; - -static const MemoryRegionOps xhci_doorbell_ops = { - .read = xhci_doorbell_read, - .write = xhci_doorbell_write, - .valid.min_access_size = 4, - .valid.max_access_size = 4, - .endianness = DEVICE_LITTLE_ENDIAN, -}; - -static void xhci_attach(USBPort *usbport) -{ - XHCIState *xhci = usbport->opaque; - XHCIPort *port = xhci_lookup_port(xhci, usbport); - - xhci_port_update(port, 0); -} - -static void xhci_detach(USBPort *usbport) -{ - XHCIState *xhci = usbport->opaque; - XHCIPort *port = xhci_lookup_port(xhci, usbport); - - xhci_detach_slot(xhci, usbport); - xhci_port_update(port, 1); -} - -static void xhci_wakeup(USBPort *usbport) -{ - XHCIState *xhci = usbport->opaque; - XHCIPort *port = xhci_lookup_port(xhci, usbport); - - if (get_field(port->portsc, PORTSC_PLS) != PLS_U3) { - return; - } - set_field(&port->portsc, PLS_RESUME, PORTSC_PLS); - xhci_port_notify(port, PORTSC_PLC); -} - -static void xhci_complete(USBPort *port, USBPacket *packet) -{ - XHCITransfer *xfer = container_of(packet, XHCITransfer, packet); - - if (packet->status == USB_RET_REMOVE_FROM_QUEUE) { - xhci_ep_nuke_one_xfer(xfer, 0); - return; - } - xhci_complete_packet(xfer); - xhci_kick_ep(xfer->xhci, xfer->slotid, xfer->epid, xfer->streamid); -} - -static void xhci_child_detach(USBPort *uport, USBDevice *child) -{ - USBBus *bus = usb_bus_from_device(child); - XHCIState *xhci = container_of(bus, XHCIState, bus); - - xhci_detach_slot(xhci, child->port); -} - -static USBPortOps xhci_uport_ops = { - .attach = xhci_attach, - .detach = xhci_detach, - .wakeup = xhci_wakeup, - .complete = xhci_complete, - .child_detach = xhci_child_detach, -}; - -static int xhci_find_epid(USBEndpoint *ep) -{ - if (ep->nr == 0) { - return 1; - } - if (ep->pid == USB_TOKEN_IN) { - return ep->nr * 2 + 1; - } else { - return ep->nr * 2; - } -} - -static USBEndpoint *xhci_epid_to_usbep(XHCIState *xhci, - unsigned int slotid, unsigned int epid) -{ - assert(slotid >= 1 && slotid <= xhci->numslots); - - if (!xhci->slots[slotid - 1].uport) { - return NULL; - } - - return usb_ep_get(xhci->slots[slotid - 1].uport->dev, - (epid & 1) ? USB_TOKEN_IN : USB_TOKEN_OUT, epid >> 1); -} - -static void xhci_wakeup_endpoint(USBBus *bus, USBEndpoint *ep, - unsigned int stream) -{ - XHCIState *xhci = container_of(bus, XHCIState, bus); - int slotid; - - DPRINTF("%s\n", __func__); - slotid = ep->dev->addr; - if (slotid == 0 || !xhci->slots[slotid-1].enabled) { - DPRINTF("%s: oops, no slot for dev %d\n", __func__, ep->dev->addr); - return; - } - xhci_kick_ep(xhci, slotid, xhci_find_epid(ep), stream); -} - -static USBBusOps xhci_bus_ops = { - .wakeup_endpoint = xhci_wakeup_endpoint, -}; - -static void usb_xhci_init(XHCIState *xhci) -{ - DeviceState *dev = DEVICE(xhci); - XHCIPort *port; - int i, usbports, speedmask; - - xhci->usbsts = USBSTS_HCH; - - if (xhci->numports_2 > MAXPORTS_2) { - xhci->numports_2 = MAXPORTS_2; - } - if (xhci->numports_3 > MAXPORTS_3) { - xhci->numports_3 = MAXPORTS_3; - } - usbports = MAX(xhci->numports_2, xhci->numports_3); - xhci->numports = xhci->numports_2 + xhci->numports_3; - - usb_bus_new(&xhci->bus, sizeof(xhci->bus), &xhci_bus_ops, dev); - - for (i = 0; i < usbports; i++) { - speedmask = 0; - if (i < xhci->numports_2) { - if (xhci_get_flag(xhci, XHCI_FLAG_SS_FIRST)) { - port = &xhci->ports[i + xhci->numports_3]; - port->portnr = i + 1 + xhci->numports_3; - } else { - port = &xhci->ports[i]; - port->portnr = i + 1; - } - port->uport = &xhci->uports[i]; - port->speedmask = - USB_SPEED_MASK_LOW | - USB_SPEED_MASK_FULL | - USB_SPEED_MASK_HIGH; - snprintf(port->name, sizeof(port->name), "usb2 port #%d", i+1); - speedmask |= port->speedmask; - } - if (i < xhci->numports_3) { - if (xhci_get_flag(xhci, XHCI_FLAG_SS_FIRST)) { - port = &xhci->ports[i]; - port->portnr = i + 1; - } else { - port = &xhci->ports[i + xhci->numports_2]; - port->portnr = i + 1 + xhci->numports_2; - } - port->uport = &xhci->uports[i]; - port->speedmask = USB_SPEED_MASK_SUPER; - snprintf(port->name, sizeof(port->name), "usb3 port #%d", i+1); - speedmask |= port->speedmask; - } - usb_register_port(&xhci->bus, &xhci->uports[i], xhci, i, - &xhci_uport_ops, speedmask); - } -} - -static void usb_xhci_realize(struct PCIDevice *dev, Error **errp) -{ - int i, ret; - - XHCIState *xhci = XHCI(dev); - - dev->config[PCI_CLASS_PROG] = 0x30; /* xHCI */ - dev->config[PCI_INTERRUPT_PIN] = 0x01; /* interrupt pin 1 */ - dev->config[PCI_CACHE_LINE_SIZE] = 0x10; - dev->config[0x60] = 0x30; /* release number */ - - usb_xhci_init(xhci); - - if (xhci->numintrs > MAXINTRS) { - xhci->numintrs = MAXINTRS; - } - while (xhci->numintrs & (xhci->numintrs - 1)) { /* ! power of 2 */ - xhci->numintrs++; - } - if (xhci->numintrs < 1) { - xhci->numintrs = 1; - } - if (xhci->numslots > MAXSLOTS) { - xhci->numslots = MAXSLOTS; - } - if (xhci->numslots < 1) { - xhci->numslots = 1; - } - if (xhci_get_flag(xhci, XHCI_FLAG_ENABLE_STREAMS)) { - xhci->max_pstreams_mask = 7; /* == 256 primary streams */ - } else { - xhci->max_pstreams_mask = 0; - } - - xhci->mfwrap_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, xhci_mfwrap_timer, xhci); - - memory_region_init(&xhci->mem, OBJECT(xhci), "xhci", LEN_REGS); - memory_region_init_io(&xhci->mem_cap, OBJECT(xhci), &xhci_cap_ops, xhci, - "capabilities", LEN_CAP); - memory_region_init_io(&xhci->mem_oper, OBJECT(xhci), &xhci_oper_ops, xhci, - "operational", 0x400); - memory_region_init_io(&xhci->mem_runtime, OBJECT(xhci), &xhci_runtime_ops, xhci, - "runtime", LEN_RUNTIME); - memory_region_init_io(&xhci->mem_doorbell, OBJECT(xhci), &xhci_doorbell_ops, xhci, - "doorbell", LEN_DOORBELL); - - memory_region_add_subregion(&xhci->mem, 0, &xhci->mem_cap); - memory_region_add_subregion(&xhci->mem, OFF_OPER, &xhci->mem_oper); - memory_region_add_subregion(&xhci->mem, OFF_RUNTIME, &xhci->mem_runtime); - memory_region_add_subregion(&xhci->mem, OFF_DOORBELL, &xhci->mem_doorbell); - - for (i = 0; i < xhci->numports; i++) { - XHCIPort *port = &xhci->ports[i]; - uint32_t offset = OFF_OPER + 0x400 + 0x10 * i; - port->xhci = xhci; - memory_region_init_io(&port->mem, OBJECT(xhci), &xhci_port_ops, port, - port->name, 0x10); - memory_region_add_subregion(&xhci->mem, offset, &port->mem); - } - - pci_register_bar(dev, 0, - PCI_BASE_ADDRESS_SPACE_MEMORY|PCI_BASE_ADDRESS_MEM_TYPE_64, - &xhci->mem); - - if (pci_bus_is_express(dev->bus) || - xhci_get_flag(xhci, XHCI_FLAG_FORCE_PCIE_ENDCAP)) { - ret = pcie_endpoint_cap_init(dev, 0xa0); - assert(ret >= 0); - } - - if (xhci_get_flag(xhci, XHCI_FLAG_USE_MSI)) { - msi_init(dev, 0x70, xhci->numintrs, true, false); - } - if (xhci_get_flag(xhci, XHCI_FLAG_USE_MSI_X)) { - msix_init(dev, xhci->numintrs, - &xhci->mem, 0, OFF_MSIX_TABLE, - &xhci->mem, 0, OFF_MSIX_PBA, - 0x90); - } -} - -static void usb_xhci_exit(PCIDevice *dev) -{ - int i; - XHCIState *xhci = XHCI(dev); - - trace_usb_xhci_exit(); - - for (i = 0; i < xhci->numslots; i++) { - xhci_disable_slot(xhci, i + 1); - } - - if (xhci->mfwrap_timer) { - timer_del(xhci->mfwrap_timer); - timer_free(xhci->mfwrap_timer); - xhci->mfwrap_timer = NULL; - } - - memory_region_del_subregion(&xhci->mem, &xhci->mem_cap); - memory_region_del_subregion(&xhci->mem, &xhci->mem_oper); - memory_region_del_subregion(&xhci->mem, &xhci->mem_runtime); - memory_region_del_subregion(&xhci->mem, &xhci->mem_doorbell); - - for (i = 0; i < xhci->numports; i++) { - XHCIPort *port = &xhci->ports[i]; - memory_region_del_subregion(&xhci->mem, &port->mem); - } - - /* destroy msix memory region */ - if (dev->msix_table && dev->msix_pba - && dev->msix_entry_used) { - memory_region_del_subregion(&xhci->mem, &dev->msix_table_mmio); - memory_region_del_subregion(&xhci->mem, &dev->msix_pba_mmio); - } - - usb_bus_release(&xhci->bus); -} - -static int usb_xhci_post_load(void *opaque, int version_id) -{ - XHCIState *xhci = opaque; - PCIDevice *pci_dev = PCI_DEVICE(xhci); - XHCISlot *slot; - XHCIEPContext *epctx; - dma_addr_t dcbaap, pctx; - uint32_t slot_ctx[4]; - uint32_t ep_ctx[5]; - int slotid, epid, state, intr; - - dcbaap = xhci_addr64(xhci->dcbaap_low, xhci->dcbaap_high); - - for (slotid = 1; slotid <= xhci->numslots; slotid++) { - slot = &xhci->slots[slotid-1]; - if (!slot->addressed) { - continue; - } - slot->ctx = - xhci_mask64(ldq_le_pci_dma(pci_dev, dcbaap + 8 * slotid)); - xhci_dma_read_u32s(xhci, slot->ctx, slot_ctx, sizeof(slot_ctx)); - slot->uport = xhci_lookup_uport(xhci, slot_ctx); - if (!slot->uport) { - /* should not happen, but may trigger on guest bugs */ - slot->enabled = 0; - slot->addressed = 0; - continue; - } - assert(slot->uport && slot->uport->dev); - - for (epid = 1; epid <= 31; epid++) { - pctx = slot->ctx + 32 * epid; - xhci_dma_read_u32s(xhci, pctx, ep_ctx, sizeof(ep_ctx)); - state = ep_ctx[0] & EP_STATE_MASK; - if (state == EP_DISABLED) { - continue; - } - epctx = xhci_alloc_epctx(xhci, slotid, epid); - slot->eps[epid-1] = epctx; - xhci_init_epctx(epctx, pctx, ep_ctx); - epctx->state = state; - if (state == EP_RUNNING) { - /* kick endpoint after vmload is finished */ - timer_mod(epctx->kick_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL)); - } - } - } - - for (intr = 0; intr < xhci->numintrs; intr++) { - if (xhci->intr[intr].msix_used) { - msix_vector_use(pci_dev, intr); - } else { - msix_vector_unuse(pci_dev, intr); - } - } - - return 0; -} - -static const VMStateDescription vmstate_xhci_ring = { - .name = "xhci-ring", - .version_id = 1, - .fields = (VMStateField[]) { - VMSTATE_UINT64(dequeue, XHCIRing), - VMSTATE_BOOL(ccs, XHCIRing), - VMSTATE_END_OF_LIST() - } -}; - -static const VMStateDescription vmstate_xhci_port = { - .name = "xhci-port", - .version_id = 1, - .fields = (VMStateField[]) { - VMSTATE_UINT32(portsc, XHCIPort), - VMSTATE_END_OF_LIST() - } -}; - -static const VMStateDescription vmstate_xhci_slot = { - .name = "xhci-slot", - .version_id = 1, - .fields = (VMStateField[]) { - VMSTATE_BOOL(enabled, XHCISlot), - VMSTATE_BOOL(addressed, XHCISlot), - VMSTATE_END_OF_LIST() - } -}; - -static const VMStateDescription vmstate_xhci_event = { - .name = "xhci-event", - .version_id = 1, - .fields = (VMStateField[]) { - VMSTATE_UINT32(type, XHCIEvent), - VMSTATE_UINT32(ccode, XHCIEvent), - VMSTATE_UINT64(ptr, XHCIEvent), - VMSTATE_UINT32(length, XHCIEvent), - VMSTATE_UINT32(flags, XHCIEvent), - VMSTATE_UINT8(slotid, XHCIEvent), - VMSTATE_UINT8(epid, XHCIEvent), - VMSTATE_END_OF_LIST() - } -}; - -static bool xhci_er_full(void *opaque, int version_id) -{ - struct XHCIInterrupter *intr = opaque; - return intr->er_full; -} - -static const VMStateDescription vmstate_xhci_intr = { - .name = "xhci-intr", - .version_id = 1, - .fields = (VMStateField[]) { - /* registers */ - VMSTATE_UINT32(iman, XHCIInterrupter), - VMSTATE_UINT32(imod, XHCIInterrupter), - VMSTATE_UINT32(erstsz, XHCIInterrupter), - VMSTATE_UINT32(erstba_low, XHCIInterrupter), - VMSTATE_UINT32(erstba_high, XHCIInterrupter), - VMSTATE_UINT32(erdp_low, XHCIInterrupter), - VMSTATE_UINT32(erdp_high, XHCIInterrupter), - - /* state */ - VMSTATE_BOOL(msix_used, XHCIInterrupter), - VMSTATE_BOOL(er_pcs, XHCIInterrupter), - VMSTATE_UINT64(er_start, XHCIInterrupter), - VMSTATE_UINT32(er_size, XHCIInterrupter), - VMSTATE_UINT32(er_ep_idx, XHCIInterrupter), - - /* event queue (used if ring is full) */ - VMSTATE_BOOL(er_full, XHCIInterrupter), - VMSTATE_UINT32_TEST(ev_buffer_put, XHCIInterrupter, xhci_er_full), - VMSTATE_UINT32_TEST(ev_buffer_get, XHCIInterrupter, xhci_er_full), - VMSTATE_STRUCT_ARRAY_TEST(ev_buffer, XHCIInterrupter, EV_QUEUE, - xhci_er_full, 1, - vmstate_xhci_event, XHCIEvent), - - VMSTATE_END_OF_LIST() - } -}; - -static const VMStateDescription vmstate_xhci = { - .name = "xhci", - .version_id = 1, - .post_load = usb_xhci_post_load, - .fields = (VMStateField[]) { - VMSTATE_PCIE_DEVICE(parent_obj, XHCIState), - VMSTATE_MSIX(parent_obj, XHCIState), - - VMSTATE_STRUCT_VARRAY_UINT32(ports, XHCIState, numports, 1, - vmstate_xhci_port, XHCIPort), - VMSTATE_STRUCT_VARRAY_UINT32(slots, XHCIState, numslots, 1, - vmstate_xhci_slot, XHCISlot), - VMSTATE_STRUCT_VARRAY_UINT32(intr, XHCIState, numintrs, 1, - vmstate_xhci_intr, XHCIInterrupter), - - /* Operational Registers */ - VMSTATE_UINT32(usbcmd, XHCIState), - VMSTATE_UINT32(usbsts, XHCIState), - VMSTATE_UINT32(dnctrl, XHCIState), - VMSTATE_UINT32(crcr_low, XHCIState), - VMSTATE_UINT32(crcr_high, XHCIState), - VMSTATE_UINT32(dcbaap_low, XHCIState), - VMSTATE_UINT32(dcbaap_high, XHCIState), - VMSTATE_UINT32(config, XHCIState), - - /* Runtime Registers & state */ - VMSTATE_INT64(mfindex_start, XHCIState), - VMSTATE_TIMER_PTR(mfwrap_timer, XHCIState), - VMSTATE_STRUCT(cmd_ring, XHCIState, 1, vmstate_xhci_ring, XHCIRing), - - VMSTATE_END_OF_LIST() - } -}; - -static Property xhci_properties[] = { - DEFINE_PROP_BIT("msi", XHCIState, flags, XHCI_FLAG_USE_MSI, true), - DEFINE_PROP_BIT("msix", XHCIState, flags, XHCI_FLAG_USE_MSI_X, true), - DEFINE_PROP_BIT("superspeed-ports-first", - XHCIState, flags, XHCI_FLAG_SS_FIRST, true), - DEFINE_PROP_BIT("force-pcie-endcap", XHCIState, flags, - XHCI_FLAG_FORCE_PCIE_ENDCAP, false), - DEFINE_PROP_BIT("streams", XHCIState, flags, - XHCI_FLAG_ENABLE_STREAMS, true), - DEFINE_PROP_UINT32("intrs", XHCIState, numintrs, MAXINTRS), - DEFINE_PROP_UINT32("slots", XHCIState, numslots, MAXSLOTS), - DEFINE_PROP_UINT32("p2", XHCIState, numports_2, 4), - DEFINE_PROP_UINT32("p3", XHCIState, numports_3, 4), - DEFINE_PROP_END_OF_LIST(), -}; - -static void xhci_class_init(ObjectClass *klass, void *data) -{ - PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); - DeviceClass *dc = DEVICE_CLASS(klass); - - dc->vmsd = &vmstate_xhci; - dc->props = xhci_properties; - dc->reset = xhci_reset; - set_bit(DEVICE_CATEGORY_USB, dc->categories); - k->realize = usb_xhci_realize; - k->exit = usb_xhci_exit; - k->vendor_id = PCI_VENDOR_ID_NEC; - k->device_id = PCI_DEVICE_ID_NEC_UPD720200; - k->class_id = PCI_CLASS_SERIAL_USB; - k->revision = 0x03; - k->is_express = 1; -} - -static const TypeInfo xhci_info = { - .name = TYPE_XHCI, - .parent = TYPE_PCI_DEVICE, - .instance_size = sizeof(XHCIState), - .class_init = xhci_class_init, -}; - -static void xhci_register_types(void) -{ - type_register_static(&xhci_info); -} - -type_init(xhci_register_types) |