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3afca1d6d4
"vmstate_xhci_event" was introduced in commit 37352df3 ("xhci: add live
migration support"), and first released in v1.6.0. The field list in this
VMSD is not terminated with the VMSTATE_END_OF_LIST() macro.
During normal use (ie. migration), the issue is practically invisible,
because the "vmstate_xhci_event" object (with the unterminated field list)
is only ever referenced -- via "vmstate_xhci_intr" -- if xhci_er_full()
returns true, for the "ev_buffer" test. Since that field_exists() check
(apparently) almost always returns false, we almost never traverse
"vmstate_xhci_event" during migration, which hides the bug.
However, Amit's vmstate checker forces recursion into this VMSD as well,
and the lack of VMSTATE_END_OF_LIST() breaks the field list terminator
check (field->name != NULL) in dump_vmstate_vmsd(). The result is
undefined behavior, which in my case translates to infinite recursion
(because the loop happens to overflow into "vmstate_xhci_intr", which then
links back to "vmstate_xhci_event").
Add the missing terminator.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3859 lines
111 KiB
C
3859 lines
111 KiB
C
/*
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* USB xHCI controller emulation
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*
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* Copyright (c) 2011 Securiforest
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* Date: 2011-05-11 ; Author: Hector Martin <hector@marcansoft.com>
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* Based on usb-ohci.c, emulates Renesas NEC USB 3.0
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "hw/hw.h"
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#include "qemu/timer.h"
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#include "hw/usb.h"
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#include "hw/pci/pci.h"
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#include "hw/pci/msi.h"
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#include "hw/pci/msix.h"
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#include "trace.h"
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//#define DEBUG_XHCI
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//#define DEBUG_DATA
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#ifdef DEBUG_XHCI
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#define DPRINTF(...) fprintf(stderr, __VA_ARGS__)
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#else
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#define DPRINTF(...) do {} while (0)
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#endif
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#define FIXME(_msg) do { fprintf(stderr, "FIXME %s:%d %s\n", \
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__func__, __LINE__, _msg); abort(); } while (0)
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#define MAXPORTS_2 15
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#define MAXPORTS_3 15
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#define MAXPORTS (MAXPORTS_2+MAXPORTS_3)
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#define MAXSLOTS 64
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#define MAXINTRS 16
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#define TD_QUEUE 24
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/* Very pessimistic, let's hope it's enough for all cases */
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#define EV_QUEUE (((3*TD_QUEUE)+16)*MAXSLOTS)
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/* Do not deliver ER Full events. NEC's driver does some things not bound
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* to the specs when it gets them */
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#define ER_FULL_HACK
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#define LEN_CAP 0x40
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#define LEN_OPER (0x400 + 0x10 * MAXPORTS)
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#define LEN_RUNTIME ((MAXINTRS + 1) * 0x20)
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#define LEN_DOORBELL ((MAXSLOTS + 1) * 0x20)
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#define OFF_OPER LEN_CAP
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#define OFF_RUNTIME 0x1000
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#define OFF_DOORBELL 0x2000
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#define OFF_MSIX_TABLE 0x3000
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#define OFF_MSIX_PBA 0x3800
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/* must be power of 2 */
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#define LEN_REGS 0x4000
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#if (OFF_OPER + LEN_OPER) > OFF_RUNTIME
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#error Increase OFF_RUNTIME
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#endif
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#if (OFF_RUNTIME + LEN_RUNTIME) > OFF_DOORBELL
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#error Increase OFF_DOORBELL
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#endif
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#if (OFF_DOORBELL + LEN_DOORBELL) > LEN_REGS
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# error Increase LEN_REGS
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#endif
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/* bit definitions */
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#define USBCMD_RS (1<<0)
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#define USBCMD_HCRST (1<<1)
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#define USBCMD_INTE (1<<2)
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#define USBCMD_HSEE (1<<3)
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#define USBCMD_LHCRST (1<<7)
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#define USBCMD_CSS (1<<8)
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#define USBCMD_CRS (1<<9)
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#define USBCMD_EWE (1<<10)
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#define USBCMD_EU3S (1<<11)
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#define USBSTS_HCH (1<<0)
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#define USBSTS_HSE (1<<2)
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#define USBSTS_EINT (1<<3)
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#define USBSTS_PCD (1<<4)
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#define USBSTS_SSS (1<<8)
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#define USBSTS_RSS (1<<9)
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#define USBSTS_SRE (1<<10)
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#define USBSTS_CNR (1<<11)
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#define USBSTS_HCE (1<<12)
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#define PORTSC_CCS (1<<0)
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#define PORTSC_PED (1<<1)
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#define PORTSC_OCA (1<<3)
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#define PORTSC_PR (1<<4)
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#define PORTSC_PLS_SHIFT 5
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#define PORTSC_PLS_MASK 0xf
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#define PORTSC_PP (1<<9)
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#define PORTSC_SPEED_SHIFT 10
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#define PORTSC_SPEED_MASK 0xf
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#define PORTSC_SPEED_FULL (1<<10)
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#define PORTSC_SPEED_LOW (2<<10)
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#define PORTSC_SPEED_HIGH (3<<10)
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#define PORTSC_SPEED_SUPER (4<<10)
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#define PORTSC_PIC_SHIFT 14
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#define PORTSC_PIC_MASK 0x3
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#define PORTSC_LWS (1<<16)
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#define PORTSC_CSC (1<<17)
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#define PORTSC_PEC (1<<18)
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#define PORTSC_WRC (1<<19)
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#define PORTSC_OCC (1<<20)
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#define PORTSC_PRC (1<<21)
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#define PORTSC_PLC (1<<22)
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#define PORTSC_CEC (1<<23)
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#define PORTSC_CAS (1<<24)
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#define PORTSC_WCE (1<<25)
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#define PORTSC_WDE (1<<26)
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#define PORTSC_WOE (1<<27)
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#define PORTSC_DR (1<<30)
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#define PORTSC_WPR (1<<31)
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#define CRCR_RCS (1<<0)
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#define CRCR_CS (1<<1)
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#define CRCR_CA (1<<2)
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#define CRCR_CRR (1<<3)
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#define IMAN_IP (1<<0)
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#define IMAN_IE (1<<1)
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#define ERDP_EHB (1<<3)
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#define TRB_SIZE 16
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typedef struct XHCITRB {
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uint64_t parameter;
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uint32_t status;
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uint32_t control;
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dma_addr_t addr;
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bool ccs;
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} XHCITRB;
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enum {
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PLS_U0 = 0,
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PLS_U1 = 1,
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PLS_U2 = 2,
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PLS_U3 = 3,
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PLS_DISABLED = 4,
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PLS_RX_DETECT = 5,
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PLS_INACTIVE = 6,
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PLS_POLLING = 7,
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PLS_RECOVERY = 8,
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PLS_HOT_RESET = 9,
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PLS_COMPILANCE_MODE = 10,
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PLS_TEST_MODE = 11,
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PLS_RESUME = 15,
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};
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typedef enum TRBType {
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TRB_RESERVED = 0,
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TR_NORMAL,
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TR_SETUP,
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TR_DATA,
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TR_STATUS,
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TR_ISOCH,
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TR_LINK,
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TR_EVDATA,
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TR_NOOP,
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CR_ENABLE_SLOT,
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CR_DISABLE_SLOT,
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CR_ADDRESS_DEVICE,
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CR_CONFIGURE_ENDPOINT,
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CR_EVALUATE_CONTEXT,
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CR_RESET_ENDPOINT,
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CR_STOP_ENDPOINT,
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CR_SET_TR_DEQUEUE,
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CR_RESET_DEVICE,
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CR_FORCE_EVENT,
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CR_NEGOTIATE_BW,
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CR_SET_LATENCY_TOLERANCE,
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CR_GET_PORT_BANDWIDTH,
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CR_FORCE_HEADER,
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CR_NOOP,
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ER_TRANSFER = 32,
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ER_COMMAND_COMPLETE,
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ER_PORT_STATUS_CHANGE,
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ER_BANDWIDTH_REQUEST,
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ER_DOORBELL,
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ER_HOST_CONTROLLER,
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ER_DEVICE_NOTIFICATION,
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ER_MFINDEX_WRAP,
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/* vendor specific bits */
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CR_VENDOR_VIA_CHALLENGE_RESPONSE = 48,
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CR_VENDOR_NEC_FIRMWARE_REVISION = 49,
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CR_VENDOR_NEC_CHALLENGE_RESPONSE = 50,
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} TRBType;
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#define CR_LINK TR_LINK
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typedef enum TRBCCode {
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CC_INVALID = 0,
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CC_SUCCESS,
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CC_DATA_BUFFER_ERROR,
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CC_BABBLE_DETECTED,
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CC_USB_TRANSACTION_ERROR,
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CC_TRB_ERROR,
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CC_STALL_ERROR,
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CC_RESOURCE_ERROR,
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CC_BANDWIDTH_ERROR,
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CC_NO_SLOTS_ERROR,
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CC_INVALID_STREAM_TYPE_ERROR,
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CC_SLOT_NOT_ENABLED_ERROR,
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CC_EP_NOT_ENABLED_ERROR,
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CC_SHORT_PACKET,
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CC_RING_UNDERRUN,
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CC_RING_OVERRUN,
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CC_VF_ER_FULL,
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CC_PARAMETER_ERROR,
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CC_BANDWIDTH_OVERRUN,
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CC_CONTEXT_STATE_ERROR,
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CC_NO_PING_RESPONSE_ERROR,
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CC_EVENT_RING_FULL_ERROR,
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CC_INCOMPATIBLE_DEVICE_ERROR,
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CC_MISSED_SERVICE_ERROR,
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CC_COMMAND_RING_STOPPED,
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CC_COMMAND_ABORTED,
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CC_STOPPED,
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CC_STOPPED_LENGTH_INVALID,
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CC_MAX_EXIT_LATENCY_TOO_LARGE_ERROR = 29,
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CC_ISOCH_BUFFER_OVERRUN = 31,
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CC_EVENT_LOST_ERROR,
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CC_UNDEFINED_ERROR,
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CC_INVALID_STREAM_ID_ERROR,
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CC_SECONDARY_BANDWIDTH_ERROR,
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CC_SPLIT_TRANSACTION_ERROR
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} TRBCCode;
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#define TRB_C (1<<0)
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#define TRB_TYPE_SHIFT 10
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#define TRB_TYPE_MASK 0x3f
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#define TRB_TYPE(t) (((t).control >> TRB_TYPE_SHIFT) & TRB_TYPE_MASK)
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#define TRB_EV_ED (1<<2)
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#define TRB_TR_ENT (1<<1)
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#define TRB_TR_ISP (1<<2)
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#define TRB_TR_NS (1<<3)
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#define TRB_TR_CH (1<<4)
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#define TRB_TR_IOC (1<<5)
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#define TRB_TR_IDT (1<<6)
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#define TRB_TR_TBC_SHIFT 7
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#define TRB_TR_TBC_MASK 0x3
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#define TRB_TR_BEI (1<<9)
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#define TRB_TR_TLBPC_SHIFT 16
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#define TRB_TR_TLBPC_MASK 0xf
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#define TRB_TR_FRAMEID_SHIFT 20
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#define TRB_TR_FRAMEID_MASK 0x7ff
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#define TRB_TR_SIA (1<<31)
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#define TRB_TR_DIR (1<<16)
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#define TRB_CR_SLOTID_SHIFT 24
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#define TRB_CR_SLOTID_MASK 0xff
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#define TRB_CR_EPID_SHIFT 16
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#define TRB_CR_EPID_MASK 0x1f
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#define TRB_CR_BSR (1<<9)
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#define TRB_CR_DC (1<<9)
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#define TRB_LK_TC (1<<1)
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#define TRB_INTR_SHIFT 22
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#define TRB_INTR_MASK 0x3ff
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#define TRB_INTR(t) (((t).status >> TRB_INTR_SHIFT) & TRB_INTR_MASK)
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#define EP_TYPE_MASK 0x7
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#define EP_TYPE_SHIFT 3
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#define EP_STATE_MASK 0x7
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#define EP_DISABLED (0<<0)
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#define EP_RUNNING (1<<0)
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#define EP_HALTED (2<<0)
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#define EP_STOPPED (3<<0)
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#define EP_ERROR (4<<0)
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#define SLOT_STATE_MASK 0x1f
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#define SLOT_STATE_SHIFT 27
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#define SLOT_STATE(s) (((s)>>SLOT_STATE_SHIFT)&SLOT_STATE_MASK)
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#define SLOT_ENABLED 0
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#define SLOT_DEFAULT 1
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#define SLOT_ADDRESSED 2
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#define SLOT_CONFIGURED 3
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#define SLOT_CONTEXT_ENTRIES_MASK 0x1f
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#define SLOT_CONTEXT_ENTRIES_SHIFT 27
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typedef struct XHCIState XHCIState;
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typedef struct XHCIStreamContext XHCIStreamContext;
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typedef struct XHCIEPContext XHCIEPContext;
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#define get_field(data, field) \
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(((data) >> field##_SHIFT) & field##_MASK)
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#define set_field(data, newval, field) do { \
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uint32_t val = *data; \
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val &= ~(field##_MASK << field##_SHIFT); \
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val |= ((newval) & field##_MASK) << field##_SHIFT; \
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*data = val; \
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} while (0)
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typedef enum EPType {
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ET_INVALID = 0,
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ET_ISO_OUT,
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ET_BULK_OUT,
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ET_INTR_OUT,
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ET_CONTROL,
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ET_ISO_IN,
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ET_BULK_IN,
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ET_INTR_IN,
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} EPType;
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typedef struct XHCIRing {
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dma_addr_t dequeue;
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bool ccs;
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} XHCIRing;
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typedef struct XHCIPort {
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XHCIState *xhci;
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uint32_t portsc;
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uint32_t portnr;
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USBPort *uport;
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uint32_t speedmask;
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char name[16];
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MemoryRegion mem;
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} XHCIPort;
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typedef struct XHCITransfer {
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XHCIState *xhci;
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USBPacket packet;
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QEMUSGList sgl;
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bool running_async;
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bool running_retry;
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bool complete;
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bool int_req;
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unsigned int iso_pkts;
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unsigned int slotid;
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unsigned int epid;
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unsigned int streamid;
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bool in_xfer;
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bool iso_xfer;
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bool timed_xfer;
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unsigned int trb_count;
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unsigned int trb_alloced;
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XHCITRB *trbs;
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TRBCCode status;
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unsigned int pkts;
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unsigned int pktsize;
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unsigned int cur_pkt;
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uint64_t mfindex_kick;
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} XHCITransfer;
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struct XHCIStreamContext {
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dma_addr_t pctx;
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unsigned int sct;
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XHCIRing ring;
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};
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struct XHCIEPContext {
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XHCIState *xhci;
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unsigned int slotid;
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unsigned int epid;
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XHCIRing ring;
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unsigned int next_xfer;
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unsigned int comp_xfer;
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XHCITransfer transfers[TD_QUEUE];
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XHCITransfer *retry;
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EPType type;
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dma_addr_t pctx;
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unsigned int max_psize;
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uint32_t state;
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/* streams */
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unsigned int max_pstreams;
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bool lsa;
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unsigned int nr_pstreams;
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XHCIStreamContext *pstreams;
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/* iso xfer scheduling */
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unsigned int interval;
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int64_t mfindex_last;
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QEMUTimer *kick_timer;
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};
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typedef struct XHCISlot {
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bool enabled;
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bool addressed;
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dma_addr_t ctx;
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USBPort *uport;
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XHCIEPContext * eps[31];
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} XHCISlot;
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typedef struct XHCIEvent {
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TRBType type;
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TRBCCode ccode;
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uint64_t ptr;
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uint32_t length;
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uint32_t flags;
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uint8_t slotid;
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uint8_t epid;
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} XHCIEvent;
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typedef struct XHCIInterrupter {
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uint32_t iman;
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uint32_t imod;
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uint32_t erstsz;
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uint32_t erstba_low;
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uint32_t erstba_high;
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uint32_t erdp_low;
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uint32_t erdp_high;
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bool msix_used, er_pcs, er_full;
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dma_addr_t er_start;
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uint32_t er_size;
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unsigned int er_ep_idx;
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XHCIEvent ev_buffer[EV_QUEUE];
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unsigned int ev_buffer_put;
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unsigned int ev_buffer_get;
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} XHCIInterrupter;
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struct XHCIState {
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/*< private >*/
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PCIDevice parent_obj;
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/*< public >*/
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USBBus bus;
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MemoryRegion mem;
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MemoryRegion mem_cap;
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MemoryRegion mem_oper;
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MemoryRegion mem_runtime;
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MemoryRegion mem_doorbell;
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/* properties */
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uint32_t numports_2;
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uint32_t numports_3;
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uint32_t numintrs;
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uint32_t numslots;
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uint32_t flags;
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/* Operational Registers */
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uint32_t usbcmd;
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uint32_t usbsts;
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uint32_t dnctrl;
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uint32_t crcr_low;
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uint32_t crcr_high;
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uint32_t dcbaap_low;
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uint32_t dcbaap_high;
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uint32_t config;
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USBPort uports[MAX(MAXPORTS_2, MAXPORTS_3)];
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XHCIPort ports[MAXPORTS];
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XHCISlot slots[MAXSLOTS];
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uint32_t numports;
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/* Runtime Registers */
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int64_t mfindex_start;
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QEMUTimer *mfwrap_timer;
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XHCIInterrupter intr[MAXINTRS];
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|
|
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,
|
|
};
|
|
|
|
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[len / sizeof(uint32_t)];
|
|
|
|
assert((len % sizeof(uint32_t)) == 0);
|
|
|
|
for (i = 0; i < (len / sizeof(uint32_t)); 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 + 1);
|
|
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 & (1 << 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;
|
|
DPRINTF("xhci: endpoint %d.%d type is %d\n", epid/2, epid%2, epctx->type);
|
|
epctx->pctx = pctx;
|
|
epctx->max_psize = ctx[1]>>16;
|
|
epctx->max_psize *= 1+((ctx[1]>>8)&0xff);
|
|
epctx->max_pstreams = (ctx[0] >> 10) & 0xf;
|
|
epctx->lsa = (ctx[0] >> 15) & 1;
|
|
DPRINTF("xhci: endpoint %d.%d max transaction (burst) size is %d\n",
|
|
epid/2, epid%2, epctx->max_psize);
|
|
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);
|
|
|
|
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;
|
|
}
|
|
if (t->trbs) {
|
|
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");
|
|
}
|
|
|
|
uint8_t ep = epid>>1;
|
|
|
|
if (epid & 1) {
|
|
ep |= 0x80;
|
|
}
|
|
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
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_malloc(sizeof(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;
|
|
ep = xfer->packet.ep;
|
|
} 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;
|
|
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] & (1 << 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 = 0x00087000;
|
|
} else {
|
|
ret = 0x00087001;
|
|
}
|
|
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 int usb_xhci_initfn(struct PCIDevice *dev)
|
|
{
|
|
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;
|
|
}
|
|
|
|
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)) {
|
|
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);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
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);
|
|
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)
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|
{
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struct XHCIInterrupter *intr = opaque;
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return intr->er_full;
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}
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|
|
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static const VMStateDescription vmstate_xhci_intr = {
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.name = "xhci-intr",
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.version_id = 1,
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.fields = (VMStateField[]) {
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|
/* registers */
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VMSTATE_UINT32(iman, XHCIInterrupter),
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VMSTATE_UINT32(imod, XHCIInterrupter),
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VMSTATE_UINT32(erstsz, XHCIInterrupter),
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VMSTATE_UINT32(erstba_low, XHCIInterrupter),
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VMSTATE_UINT32(erstba_high, XHCIInterrupter),
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|
VMSTATE_UINT32(erdp_low, XHCIInterrupter),
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VMSTATE_UINT32(erdp_high, XHCIInterrupter),
|
|
|
|
/* state */
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|
VMSTATE_BOOL(msix_used, XHCIInterrupter),
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|
VMSTATE_BOOL(er_pcs, XHCIInterrupter),
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VMSTATE_UINT64(er_start, XHCIInterrupter),
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VMSTATE_UINT32(er_size, XHCIInterrupter),
|
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VMSTATE_UINT32(er_ep_idx, XHCIInterrupter),
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|
|
|
/* event queue (used if ring is full) */
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|
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(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_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;
|
|
dc->hotpluggable = false;
|
|
set_bit(DEVICE_CATEGORY_USB, dc->categories);
|
|
k->init = usb_xhci_initfn;
|
|
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)
|