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/*
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* QEMU USB EHCI Emulation
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*
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* Copyright(c) 2008 Emutex Ltd. (address@hidden)
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* Copyright(c) 2011-2012 Red Hat, Inc.
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*
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* Red Hat Authors:
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* Gerd Hoffmann <kraxel@redhat.com>
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* Hans de Goede <hdegoede@redhat.com>
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*
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* EHCI project was started by Mark Burkley, with contributions by
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* Niels de Vos. David S. Ahern continued working on it. Kevin Wolf,
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* Jan Kiszka and Vincent Palatin contributed bugfixes.
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*
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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 General Public License
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* along with this program; 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.h" |
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#include "monitor.h" |
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#include "trace.h" |
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#include "dma.h" |
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#define EHCI_DEBUG 0 |
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#if EHCI_DEBUG
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#define DPRINTF printf
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#else
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#define DPRINTF(...)
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#endif
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/* internal processing - reset HC to try and recover */
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#define USB_RET_PROCERR (-99) |
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#define MMIO_SIZE 0x1000 |
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/* Capability Registers Base Address - section 2.2 */
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#define CAPREGBASE 0x0000 |
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#define CAPLENGTH CAPREGBASE + 0x0000 // 1-byte, 0x0001 reserved |
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#define HCIVERSION CAPREGBASE + 0x0002 // 2-bytes, i/f version # |
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#define HCSPARAMS CAPREGBASE + 0x0004 // 4-bytes, structural params |
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#define HCCPARAMS CAPREGBASE + 0x0008 // 4-bytes, capability params |
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#define EECP HCCPARAMS + 1 |
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#define HCSPPORTROUTE1 CAPREGBASE + 0x000c |
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#define HCSPPORTROUTE2 CAPREGBASE + 0x0010 |
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|
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#define OPREGBASE 0x0020 // Operational Registers Base Address |
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|
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#define USBCMD OPREGBASE + 0x0000 |
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#define USBCMD_RUNSTOP (1 << 0) // run / Stop |
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#define USBCMD_HCRESET (1 << 1) // HC Reset |
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#define USBCMD_FLS (3 << 2) // Frame List Size |
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#define USBCMD_FLS_SH 2 // Frame List Size Shift |
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#define USBCMD_PSE (1 << 4) // Periodic Schedule Enable |
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#define USBCMD_ASE (1 << 5) // Asynch Schedule Enable |
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#define USBCMD_IAAD (1 << 6) // Int Asynch Advance Doorbell |
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#define USBCMD_LHCR (1 << 7) // Light Host Controller Reset |
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#define USBCMD_ASPMC (3 << 8) // Async Sched Park Mode Count |
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#define USBCMD_ASPME (1 << 11) // Async Sched Park Mode Enable |
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#define USBCMD_ITC (0x7f << 16) // Int Threshold Control |
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#define USBCMD_ITC_SH 16 // Int Threshold Control Shift |
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|
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#define USBSTS OPREGBASE + 0x0004 |
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#define USBSTS_RO_MASK 0x0000003f |
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#define USBSTS_INT (1 << 0) // USB Interrupt |
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#define USBSTS_ERRINT (1 << 1) // Error Interrupt |
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#define USBSTS_PCD (1 << 2) // Port Change Detect |
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#define USBSTS_FLR (1 << 3) // Frame List Rollover |
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#define USBSTS_HSE (1 << 4) // Host System Error |
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#define USBSTS_IAA (1 << 5) // Interrupt on Async Advance |
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#define USBSTS_HALT (1 << 12) // HC Halted |
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#define USBSTS_REC (1 << 13) // Reclamation |
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#define USBSTS_PSS (1 << 14) // Periodic Schedule Status |
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#define USBSTS_ASS (1 << 15) // Asynchronous Schedule Status |
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|
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/*
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* Interrupt enable bits correspond to the interrupt active bits in USBSTS
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* so no need to redefine here.
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*/
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#define USBINTR OPREGBASE + 0x0008 |
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#define USBINTR_MASK 0x0000003f |
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#define FRINDEX OPREGBASE + 0x000c |
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#define CTRLDSSEGMENT OPREGBASE + 0x0010 |
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#define PERIODICLISTBASE OPREGBASE + 0x0014 |
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#define ASYNCLISTADDR OPREGBASE + 0x0018 |
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#define ASYNCLISTADDR_MASK 0xffffffe0 |
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#define CONFIGFLAG OPREGBASE + 0x0040 |
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#define PORTSC (OPREGBASE + 0x0044) |
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#define PORTSC_BEGIN PORTSC
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#define PORTSC_END (PORTSC + 4 * NB_PORTS) |
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/*
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* Bits that are reserved or are read-only are masked out of values
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* written to us by software
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*/
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#define PORTSC_RO_MASK 0x007001c0 |
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#define PORTSC_RWC_MASK 0x0000002a |
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#define PORTSC_WKOC_E (1 << 22) // Wake on Over Current Enable |
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#define PORTSC_WKDS_E (1 << 21) // Wake on Disconnect Enable |
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#define PORTSC_WKCN_E (1 << 20) // Wake on Connect Enable |
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#define PORTSC_PTC (15 << 16) // Port Test Control |
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#define PORTSC_PTC_SH 16 // Port Test Control shift |
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#define PORTSC_PIC (3 << 14) // Port Indicator Control |
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#define PORTSC_PIC_SH 14 // Port Indicator Control Shift |
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#define PORTSC_POWNER (1 << 13) // Port Owner |
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#define PORTSC_PPOWER (1 << 12) // Port Power |
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#define PORTSC_LINESTAT (3 << 10) // Port Line Status |
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#define PORTSC_LINESTAT_SH 10 // Port Line Status Shift |
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#define PORTSC_PRESET (1 << 8) // Port Reset |
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#define PORTSC_SUSPEND (1 << 7) // Port Suspend |
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#define PORTSC_FPRES (1 << 6) // Force Port Resume |
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#define PORTSC_OCC (1 << 5) // Over Current Change |
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#define PORTSC_OCA (1 << 4) // Over Current Active |
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#define PORTSC_PEDC (1 << 3) // Port Enable/Disable Change |
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#define PORTSC_PED (1 << 2) // Port Enable/Disable |
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#define PORTSC_CSC (1 << 1) // Connect Status Change |
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#define PORTSC_CONNECT (1 << 0) // Current Connect Status |
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#define FRAME_TIMER_FREQ 1000 |
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#define FRAME_TIMER_NS (1000000000 / FRAME_TIMER_FREQ) |
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#define NB_MAXINTRATE 8 // Max rate at which controller issues ints |
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#define NB_PORTS 6 // Number of downstream ports |
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#define BUFF_SIZE 5*4096 // Max bytes to transfer per transaction |
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#define MAX_QH 100 // Max allowable queue heads in a chain |
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/* Internal periodic / asynchronous schedule state machine states
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*/
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typedef enum { |
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EST_INACTIVE = 1000,
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EST_ACTIVE, |
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EST_EXECUTING, |
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EST_SLEEPING, |
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/* The following states are internal to the state machine function
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*/
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EST_WAITLISTHEAD, |
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EST_FETCHENTRY, |
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EST_FETCHQH, |
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EST_FETCHITD, |
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EST_FETCHSITD, |
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EST_ADVANCEQUEUE, |
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EST_FETCHQTD, |
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EST_EXECUTE, |
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EST_WRITEBACK, |
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EST_HORIZONTALQH |
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} EHCI_STATES; |
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/* macros for accessing fields within next link pointer entry */
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#define NLPTR_GET(x) ((x) & 0xffffffe0) |
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#define NLPTR_TYPE_GET(x) (((x) >> 1) & 3) |
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#define NLPTR_TBIT(x) ((x) & 1) // 1=invalid, 0=valid |
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/* link pointer types */
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#define NLPTR_TYPE_ITD 0 // isoc xfer descriptor |
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#define NLPTR_TYPE_QH 1 // queue head |
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#define NLPTR_TYPE_STITD 2 // split xaction, isoc xfer descriptor |
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#define NLPTR_TYPE_FSTN 3 // frame span traversal node |
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/* EHCI spec version 1.0 Section 3.3
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*/
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typedef struct EHCIitd { |
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uint32_t next; |
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uint32_t transact[8];
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#define ITD_XACT_ACTIVE (1 << 31) |
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#define ITD_XACT_DBERROR (1 << 30) |
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#define ITD_XACT_BABBLE (1 << 29) |
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#define ITD_XACT_XACTERR (1 << 28) |
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#define ITD_XACT_LENGTH_MASK 0x0fff0000 |
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#define ITD_XACT_LENGTH_SH 16 |
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#define ITD_XACT_IOC (1 << 15) |
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#define ITD_XACT_PGSEL_MASK 0x00007000 |
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#define ITD_XACT_PGSEL_SH 12 |
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#define ITD_XACT_OFFSET_MASK 0x00000fff |
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uint32_t bufptr[7];
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#define ITD_BUFPTR_MASK 0xfffff000 |
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#define ITD_BUFPTR_SH 12 |
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#define ITD_BUFPTR_EP_MASK 0x00000f00 |
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#define ITD_BUFPTR_EP_SH 8 |
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#define ITD_BUFPTR_DEVADDR_MASK 0x0000007f |
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#define ITD_BUFPTR_DEVADDR_SH 0 |
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#define ITD_BUFPTR_DIRECTION (1 << 11) |
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#define ITD_BUFPTR_MAXPKT_MASK 0x000007ff |
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#define ITD_BUFPTR_MAXPKT_SH 0 |
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#define ITD_BUFPTR_MULT_MASK 0x00000003 |
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#define ITD_BUFPTR_MULT_SH 0 |
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} EHCIitd; |
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/* EHCI spec version 1.0 Section 3.4
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*/
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typedef struct EHCIsitd { |
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uint32_t next; // Standard next link pointer
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uint32_t epchar; |
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#define SITD_EPCHAR_IO (1 << 31) |
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#define SITD_EPCHAR_PORTNUM_MASK 0x7f000000 |
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#define SITD_EPCHAR_PORTNUM_SH 24 |
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#define SITD_EPCHAR_HUBADD_MASK 0x007f0000 |
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#define SITD_EPCHAR_HUBADDR_SH 16 |
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#define SITD_EPCHAR_EPNUM_MASK 0x00000f00 |
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#define SITD_EPCHAR_EPNUM_SH 8 |
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#define SITD_EPCHAR_DEVADDR_MASK 0x0000007f |
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uint32_t uframe; |
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#define SITD_UFRAME_CMASK_MASK 0x0000ff00 |
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#define SITD_UFRAME_CMASK_SH 8 |
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#define SITD_UFRAME_SMASK_MASK 0x000000ff |
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|
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uint32_t results; |
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#define SITD_RESULTS_IOC (1 << 31) |
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#define SITD_RESULTS_PGSEL (1 << 30) |
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#define SITD_RESULTS_TBYTES_MASK 0x03ff0000 |
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#define SITD_RESULTS_TYBYTES_SH 16 |
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#define SITD_RESULTS_CPROGMASK_MASK 0x0000ff00 |
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#define SITD_RESULTS_CPROGMASK_SH 8 |
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#define SITD_RESULTS_ACTIVE (1 << 7) |
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#define SITD_RESULTS_ERR (1 << 6) |
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#define SITD_RESULTS_DBERR (1 << 5) |
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#define SITD_RESULTS_BABBLE (1 << 4) |
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#define SITD_RESULTS_XACTERR (1 << 3) |
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#define SITD_RESULTS_MISSEDUF (1 << 2) |
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#define SITD_RESULTS_SPLITXSTATE (1 << 1) |
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uint32_t bufptr[2];
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#define SITD_BUFPTR_MASK 0xfffff000 |
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#define SITD_BUFPTR_CURROFF_MASK 0x00000fff |
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#define SITD_BUFPTR_TPOS_MASK 0x00000018 |
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#define SITD_BUFPTR_TPOS_SH 3 |
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#define SITD_BUFPTR_TCNT_MASK 0x00000007 |
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uint32_t backptr; // Standard next link pointer
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} EHCIsitd; |
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/* EHCI spec version 1.0 Section 3.5
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*/
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typedef struct EHCIqtd { |
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uint32_t next; // Standard next link pointer
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uint32_t altnext; // Standard next link pointer
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uint32_t token; |
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#define QTD_TOKEN_DTOGGLE (1 << 31) |
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#define QTD_TOKEN_TBYTES_MASK 0x7fff0000 |
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#define QTD_TOKEN_TBYTES_SH 16 |
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#define QTD_TOKEN_IOC (1 << 15) |
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#define QTD_TOKEN_CPAGE_MASK 0x00007000 |
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#define QTD_TOKEN_CPAGE_SH 12 |
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#define QTD_TOKEN_CERR_MASK 0x00000c00 |
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#define QTD_TOKEN_CERR_SH 10 |
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#define QTD_TOKEN_PID_MASK 0x00000300 |
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#define QTD_TOKEN_PID_SH 8 |
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#define QTD_TOKEN_ACTIVE (1 << 7) |
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#define QTD_TOKEN_HALT (1 << 6) |
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#define QTD_TOKEN_DBERR (1 << 5) |
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#define QTD_TOKEN_BABBLE (1 << 4) |
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#define QTD_TOKEN_XACTERR (1 << 3) |
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#define QTD_TOKEN_MISSEDUF (1 << 2) |
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#define QTD_TOKEN_SPLITXSTATE (1 << 1) |
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#define QTD_TOKEN_PING (1 << 0) |
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|
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uint32_t bufptr[5]; // Standard buffer pointer |
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#define QTD_BUFPTR_MASK 0xfffff000 |
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#define QTD_BUFPTR_SH 12 |
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} EHCIqtd; |
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/* EHCI spec version 1.0 Section 3.6
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*/
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typedef struct EHCIqh { |
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uint32_t next; // Standard next link pointer
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/* endpoint characteristics */
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uint32_t epchar; |
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#define QH_EPCHAR_RL_MASK 0xf0000000 |
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#define QH_EPCHAR_RL_SH 28 |
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#define QH_EPCHAR_C (1 << 27) |
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#define QH_EPCHAR_MPLEN_MASK 0x07FF0000 |
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#define QH_EPCHAR_MPLEN_SH 16 |
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#define QH_EPCHAR_H (1 << 15) |
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#define QH_EPCHAR_DTC (1 << 14) |
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#define QH_EPCHAR_EPS_MASK 0x00003000 |
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#define QH_EPCHAR_EPS_SH 12 |
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#define EHCI_QH_EPS_FULL 0 |
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#define EHCI_QH_EPS_LOW 1 |
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#define EHCI_QH_EPS_HIGH 2 |
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#define EHCI_QH_EPS_RESERVED 3 |
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|
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#define QH_EPCHAR_EP_MASK 0x00000f00 |
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#define QH_EPCHAR_EP_SH 8 |
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#define QH_EPCHAR_I (1 << 7) |
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#define QH_EPCHAR_DEVADDR_MASK 0x0000007f |
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#define QH_EPCHAR_DEVADDR_SH 0 |
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|
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/* endpoint capabilities */
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uint32_t epcap; |
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#define QH_EPCAP_MULT_MASK 0xc0000000 |
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#define QH_EPCAP_MULT_SH 30 |
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#define QH_EPCAP_PORTNUM_MASK 0x3f800000 |
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#define QH_EPCAP_PORTNUM_SH 23 |
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#define QH_EPCAP_HUBADDR_MASK 0x007f0000 |
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#define QH_EPCAP_HUBADDR_SH 16 |
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#define QH_EPCAP_CMASK_MASK 0x0000ff00 |
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#define QH_EPCAP_CMASK_SH 8 |
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#define QH_EPCAP_SMASK_MASK 0x000000ff |
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#define QH_EPCAP_SMASK_SH 0 |
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|
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uint32_t current_qtd; // Standard next link pointer
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uint32_t next_qtd; // Standard next link pointer
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uint32_t altnext_qtd; |
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#define QH_ALTNEXT_NAKCNT_MASK 0x0000001e |
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#define QH_ALTNEXT_NAKCNT_SH 1 |
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|
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uint32_t token; // Same as QTD token
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uint32_t bufptr[5]; // Standard buffer pointer |
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#define BUFPTR_CPROGMASK_MASK 0x000000ff |
330 |
#define BUFPTR_FRAMETAG_MASK 0x0000001f |
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#define BUFPTR_SBYTES_MASK 0x00000fe0 |
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#define BUFPTR_SBYTES_SH 5 |
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} EHCIqh; |
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|
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/* EHCI spec version 1.0 Section 3.7
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*/
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typedef struct EHCIfstn { |
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uint32_t next; // Standard next link pointer
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uint32_t backptr; // Standard next link pointer
|
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} EHCIfstn; |
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|
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typedef struct EHCIPacket EHCIPacket; |
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typedef struct EHCIQueue EHCIQueue; |
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typedef struct EHCIState EHCIState; |
345 |
|
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enum async_state {
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EHCI_ASYNC_NONE = 0,
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EHCI_ASYNC_INITIALIZED, |
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EHCI_ASYNC_INFLIGHT, |
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EHCI_ASYNC_FINISHED, |
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}; |
352 |
|
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struct EHCIPacket {
|
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EHCIQueue *queue; |
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QTAILQ_ENTRY(EHCIPacket) next; |
356 |
|
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EHCIqtd qtd; /* copy of current QTD (being worked on) */
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uint32_t qtdaddr; /* address QTD read from */
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|
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USBPacket packet; |
361 |
QEMUSGList sgl; |
362 |
int pid;
|
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uint32_t tbytes; |
364 |
enum async_state async;
|
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int usb_status;
|
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}; |
367 |
|
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struct EHCIQueue {
|
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EHCIState *ehci; |
370 |
QTAILQ_ENTRY(EHCIQueue) next; |
371 |
uint32_t seen; |
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uint64_t ts; |
373 |
int async;
|
374 |
|
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/* cached data from guest - needs to be flushed
|
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* when guest removes an entry (doorbell, handshake sequence)
|
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*/
|
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EHCIqh qh; /* copy of current QH (being worked on) */
|
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uint32_t qhaddr; /* address QH read from */
|
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uint32_t qtdaddr; /* address QTD read from */
|
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USBDevice *dev; |
382 |
QTAILQ_HEAD(, EHCIPacket) packets; |
383 |
}; |
384 |
|
385 |
typedef QTAILQ_HEAD(EHCIQueueHead, EHCIQueue) EHCIQueueHead;
|
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|
387 |
struct EHCIState {
|
388 |
PCIDevice dev; |
389 |
USBBus bus; |
390 |
qemu_irq irq; |
391 |
MemoryRegion mem; |
392 |
int companion_count;
|
393 |
|
394 |
/* properties */
|
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uint32_t maxframes; |
396 |
|
397 |
/*
|
398 |
* EHCI spec version 1.0 Section 2.3
|
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* Host Controller Operational Registers
|
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*/
|
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union {
|
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uint8_t mmio[MMIO_SIZE]; |
403 |
struct {
|
404 |
uint8_t cap[OPREGBASE]; |
405 |
uint32_t usbcmd; |
406 |
uint32_t usbsts; |
407 |
uint32_t usbintr; |
408 |
uint32_t frindex; |
409 |
uint32_t ctrldssegment; |
410 |
uint32_t periodiclistbase; |
411 |
uint32_t asynclistaddr; |
412 |
uint32_t notused[9];
|
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uint32_t configflag; |
414 |
uint32_t portsc[NB_PORTS]; |
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}; |
416 |
}; |
417 |
|
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/*
|
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* Internal states, shadow registers, etc
|
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*/
|
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QEMUTimer *frame_timer; |
422 |
QEMUBH *async_bh; |
423 |
uint32_t astate; /* Current state in asynchronous schedule */
|
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uint32_t pstate; /* Current state in periodic schedule */
|
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USBPort ports[NB_PORTS]; |
426 |
USBPort *companion_ports[NB_PORTS]; |
427 |
uint32_t usbsts_pending; |
428 |
uint32_t usbsts_frindex; |
429 |
EHCIQueueHead aqueues; |
430 |
EHCIQueueHead pqueues; |
431 |
|
432 |
/* which address to look at next */
|
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uint32_t a_fetch_addr; |
434 |
uint32_t p_fetch_addr; |
435 |
|
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USBPacket ipacket; |
437 |
QEMUSGList isgl; |
438 |
|
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uint64_t last_run_ns; |
440 |
uint32_t async_stepdown; |
441 |
}; |
442 |
|
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#define SET_LAST_RUN_CLOCK(s) \
|
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(s)->last_run_ns = qemu_get_clock_ns(vm_clock); |
445 |
|
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/* nifty macros from Arnon's EHCI version */
|
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#define get_field(data, field) \
|
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(((data) & field##_MASK) >> field##_SH) |
449 |
|
450 |
#define set_field(data, newval, field) do { \ |
451 |
uint32_t val = *data; \ |
452 |
val &= ~ field##_MASK; \ |
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val |= ((newval) << field##_SH) & field##_MASK; \ |
454 |
*data = val; \ |
455 |
} while(0) |
456 |
|
457 |
static const char *ehci_state_names[] = { |
458 |
[EST_INACTIVE] = "INACTIVE",
|
459 |
[EST_ACTIVE] = "ACTIVE",
|
460 |
[EST_EXECUTING] = "EXECUTING",
|
461 |
[EST_SLEEPING] = "SLEEPING",
|
462 |
[EST_WAITLISTHEAD] = "WAITLISTHEAD",
|
463 |
[EST_FETCHENTRY] = "FETCH ENTRY",
|
464 |
[EST_FETCHQH] = "FETCH QH",
|
465 |
[EST_FETCHITD] = "FETCH ITD",
|
466 |
[EST_ADVANCEQUEUE] = "ADVANCEQUEUE",
|
467 |
[EST_FETCHQTD] = "FETCH QTD",
|
468 |
[EST_EXECUTE] = "EXECUTE",
|
469 |
[EST_WRITEBACK] = "WRITEBACK",
|
470 |
[EST_HORIZONTALQH] = "HORIZONTALQH",
|
471 |
}; |
472 |
|
473 |
static const char *ehci_mmio_names[] = { |
474 |
[CAPLENGTH] = "CAPLENGTH",
|
475 |
[HCIVERSION] = "HCIVERSION",
|
476 |
[HCSPARAMS] = "HCSPARAMS",
|
477 |
[HCCPARAMS] = "HCCPARAMS",
|
478 |
[USBCMD] = "USBCMD",
|
479 |
[USBSTS] = "USBSTS",
|
480 |
[USBINTR] = "USBINTR",
|
481 |
[FRINDEX] = "FRINDEX",
|
482 |
[PERIODICLISTBASE] = "P-LIST BASE",
|
483 |
[ASYNCLISTADDR] = "A-LIST ADDR",
|
484 |
[PORTSC_BEGIN] = "PORTSC #0",
|
485 |
[PORTSC_BEGIN + 4] = "PORTSC #1", |
486 |
[PORTSC_BEGIN + 8] = "PORTSC #2", |
487 |
[PORTSC_BEGIN + 12] = "PORTSC #3", |
488 |
[PORTSC_BEGIN + 16] = "PORTSC #4", |
489 |
[PORTSC_BEGIN + 20] = "PORTSC #5", |
490 |
[CONFIGFLAG] = "CONFIGFLAG",
|
491 |
}; |
492 |
|
493 |
static int ehci_state_executing(EHCIQueue *q); |
494 |
static int ehci_state_writeback(EHCIQueue *q); |
495 |
|
496 |
static const char *nr2str(const char **n, size_t len, uint32_t nr) |
497 |
{ |
498 |
if (nr < len && n[nr] != NULL) { |
499 |
return n[nr];
|
500 |
} else {
|
501 |
return "unknown"; |
502 |
} |
503 |
} |
504 |
|
505 |
static const char *state2str(uint32_t state) |
506 |
{ |
507 |
return nr2str(ehci_state_names, ARRAY_SIZE(ehci_state_names), state);
|
508 |
} |
509 |
|
510 |
static const char *addr2str(target_phys_addr_t addr) |
511 |
{ |
512 |
return nr2str(ehci_mmio_names, ARRAY_SIZE(ehci_mmio_names), addr);
|
513 |
} |
514 |
|
515 |
static void ehci_trace_usbsts(uint32_t mask, int state) |
516 |
{ |
517 |
/* interrupts */
|
518 |
if (mask & USBSTS_INT) {
|
519 |
trace_usb_ehci_usbsts("INT", state);
|
520 |
} |
521 |
if (mask & USBSTS_ERRINT) {
|
522 |
trace_usb_ehci_usbsts("ERRINT", state);
|
523 |
} |
524 |
if (mask & USBSTS_PCD) {
|
525 |
trace_usb_ehci_usbsts("PCD", state);
|
526 |
} |
527 |
if (mask & USBSTS_FLR) {
|
528 |
trace_usb_ehci_usbsts("FLR", state);
|
529 |
} |
530 |
if (mask & USBSTS_HSE) {
|
531 |
trace_usb_ehci_usbsts("HSE", state);
|
532 |
} |
533 |
if (mask & USBSTS_IAA) {
|
534 |
trace_usb_ehci_usbsts("IAA", state);
|
535 |
} |
536 |
|
537 |
/* status */
|
538 |
if (mask & USBSTS_HALT) {
|
539 |
trace_usb_ehci_usbsts("HALT", state);
|
540 |
} |
541 |
if (mask & USBSTS_REC) {
|
542 |
trace_usb_ehci_usbsts("REC", state);
|
543 |
} |
544 |
if (mask & USBSTS_PSS) {
|
545 |
trace_usb_ehci_usbsts("PSS", state);
|
546 |
} |
547 |
if (mask & USBSTS_ASS) {
|
548 |
trace_usb_ehci_usbsts("ASS", state);
|
549 |
} |
550 |
} |
551 |
|
552 |
static inline void ehci_set_usbsts(EHCIState *s, int mask) |
553 |
{ |
554 |
if ((s->usbsts & mask) == mask) {
|
555 |
return;
|
556 |
} |
557 |
ehci_trace_usbsts(mask, 1);
|
558 |
s->usbsts |= mask; |
559 |
} |
560 |
|
561 |
static inline void ehci_clear_usbsts(EHCIState *s, int mask) |
562 |
{ |
563 |
if ((s->usbsts & mask) == 0) { |
564 |
return;
|
565 |
} |
566 |
ehci_trace_usbsts(mask, 0);
|
567 |
s->usbsts &= ~mask; |
568 |
} |
569 |
|
570 |
/* update irq line */
|
571 |
static inline void ehci_update_irq(EHCIState *s) |
572 |
{ |
573 |
int level = 0; |
574 |
|
575 |
if ((s->usbsts & USBINTR_MASK) & s->usbintr) {
|
576 |
level = 1;
|
577 |
} |
578 |
|
579 |
trace_usb_ehci_irq(level, s->frindex, s->usbsts, s->usbintr); |
580 |
qemu_set_irq(s->irq, level); |
581 |
} |
582 |
|
583 |
/* flag interrupt condition */
|
584 |
static inline void ehci_raise_irq(EHCIState *s, int intr) |
585 |
{ |
586 |
if (intr & (USBSTS_PCD | USBSTS_FLR | USBSTS_HSE)) {
|
587 |
s->usbsts |= intr; |
588 |
ehci_update_irq(s); |
589 |
} else {
|
590 |
s->usbsts_pending |= intr; |
591 |
} |
592 |
} |
593 |
|
594 |
/*
|
595 |
* Commit pending interrupts (added via ehci_raise_irq),
|
596 |
* at the rate allowed by "Interrupt Threshold Control".
|
597 |
*/
|
598 |
static inline void ehci_commit_irq(EHCIState *s) |
599 |
{ |
600 |
uint32_t itc; |
601 |
|
602 |
if (!s->usbsts_pending) {
|
603 |
return;
|
604 |
} |
605 |
if (s->usbsts_frindex > s->frindex) {
|
606 |
return;
|
607 |
} |
608 |
|
609 |
itc = (s->usbcmd >> 16) & 0xff; |
610 |
s->usbsts |= s->usbsts_pending; |
611 |
s->usbsts_pending = 0;
|
612 |
s->usbsts_frindex = s->frindex + itc; |
613 |
ehci_update_irq(s); |
614 |
} |
615 |
|
616 |
static void ehci_update_halt(EHCIState *s) |
617 |
{ |
618 |
if (s->usbcmd & USBCMD_RUNSTOP) {
|
619 |
ehci_clear_usbsts(s, USBSTS_HALT); |
620 |
} else {
|
621 |
if (s->astate == EST_INACTIVE && s->pstate == EST_INACTIVE) {
|
622 |
ehci_set_usbsts(s, USBSTS_HALT); |
623 |
} |
624 |
} |
625 |
} |
626 |
|
627 |
static void ehci_set_state(EHCIState *s, int async, int state) |
628 |
{ |
629 |
if (async) {
|
630 |
trace_usb_ehci_state("async", state2str(state));
|
631 |
s->astate = state; |
632 |
if (s->astate == EST_INACTIVE) {
|
633 |
ehci_clear_usbsts(s, USBSTS_ASS); |
634 |
ehci_update_halt(s); |
635 |
} else {
|
636 |
ehci_set_usbsts(s, USBSTS_ASS); |
637 |
} |
638 |
} else {
|
639 |
trace_usb_ehci_state("periodic", state2str(state));
|
640 |
s->pstate = state; |
641 |
if (s->pstate == EST_INACTIVE) {
|
642 |
ehci_clear_usbsts(s, USBSTS_PSS); |
643 |
ehci_update_halt(s); |
644 |
} else {
|
645 |
ehci_set_usbsts(s, USBSTS_PSS); |
646 |
} |
647 |
} |
648 |
} |
649 |
|
650 |
static int ehci_get_state(EHCIState *s, int async) |
651 |
{ |
652 |
return async ? s->astate : s->pstate;
|
653 |
} |
654 |
|
655 |
static void ehci_set_fetch_addr(EHCIState *s, int async, uint32_t addr) |
656 |
{ |
657 |
if (async) {
|
658 |
s->a_fetch_addr = addr; |
659 |
} else {
|
660 |
s->p_fetch_addr = addr; |
661 |
} |
662 |
} |
663 |
|
664 |
static int ehci_get_fetch_addr(EHCIState *s, int async) |
665 |
{ |
666 |
return async ? s->a_fetch_addr : s->p_fetch_addr;
|
667 |
} |
668 |
|
669 |
static void ehci_trace_qh(EHCIQueue *q, target_phys_addr_t addr, EHCIqh *qh) |
670 |
{ |
671 |
/* need three here due to argument count limits */
|
672 |
trace_usb_ehci_qh_ptrs(q, addr, qh->next, |
673 |
qh->current_qtd, qh->next_qtd, qh->altnext_qtd); |
674 |
trace_usb_ehci_qh_fields(addr, |
675 |
get_field(qh->epchar, QH_EPCHAR_RL), |
676 |
get_field(qh->epchar, QH_EPCHAR_MPLEN), |
677 |
get_field(qh->epchar, QH_EPCHAR_EPS), |
678 |
get_field(qh->epchar, QH_EPCHAR_EP), |
679 |
get_field(qh->epchar, QH_EPCHAR_DEVADDR)); |
680 |
trace_usb_ehci_qh_bits(addr, |
681 |
(bool)(qh->epchar & QH_EPCHAR_C),
|
682 |
(bool)(qh->epchar & QH_EPCHAR_H),
|
683 |
(bool)(qh->epchar & QH_EPCHAR_DTC),
|
684 |
(bool)(qh->epchar & QH_EPCHAR_I));
|
685 |
} |
686 |
|
687 |
static void ehci_trace_qtd(EHCIQueue *q, target_phys_addr_t addr, EHCIqtd *qtd) |
688 |
{ |
689 |
/* need three here due to argument count limits */
|
690 |
trace_usb_ehci_qtd_ptrs(q, addr, qtd->next, qtd->altnext); |
691 |
trace_usb_ehci_qtd_fields(addr, |
692 |
get_field(qtd->token, QTD_TOKEN_TBYTES), |
693 |
get_field(qtd->token, QTD_TOKEN_CPAGE), |
694 |
get_field(qtd->token, QTD_TOKEN_CERR), |
695 |
get_field(qtd->token, QTD_TOKEN_PID)); |
696 |
trace_usb_ehci_qtd_bits(addr, |
697 |
(bool)(qtd->token & QTD_TOKEN_IOC),
|
698 |
(bool)(qtd->token & QTD_TOKEN_ACTIVE),
|
699 |
(bool)(qtd->token & QTD_TOKEN_HALT),
|
700 |
(bool)(qtd->token & QTD_TOKEN_BABBLE),
|
701 |
(bool)(qtd->token & QTD_TOKEN_XACTERR));
|
702 |
} |
703 |
|
704 |
static void ehci_trace_itd(EHCIState *s, target_phys_addr_t addr, EHCIitd *itd) |
705 |
{ |
706 |
trace_usb_ehci_itd(addr, itd->next, |
707 |
get_field(itd->bufptr[1], ITD_BUFPTR_MAXPKT),
|
708 |
get_field(itd->bufptr[2], ITD_BUFPTR_MULT),
|
709 |
get_field(itd->bufptr[0], ITD_BUFPTR_EP),
|
710 |
get_field(itd->bufptr[0], ITD_BUFPTR_DEVADDR));
|
711 |
} |
712 |
|
713 |
static void ehci_trace_sitd(EHCIState *s, target_phys_addr_t addr, |
714 |
EHCIsitd *sitd) |
715 |
{ |
716 |
trace_usb_ehci_sitd(addr, sitd->next, |
717 |
(bool)(sitd->results & SITD_RESULTS_ACTIVE));
|
718 |
} |
719 |
|
720 |
static void ehci_trace_guest_bug(EHCIState *s, const char *message) |
721 |
{ |
722 |
trace_usb_ehci_guest_bug(message); |
723 |
fprintf(stderr, "ehci warning: %s\n", message);
|
724 |
} |
725 |
|
726 |
static inline bool ehci_enabled(EHCIState *s) |
727 |
{ |
728 |
return s->usbcmd & USBCMD_RUNSTOP;
|
729 |
} |
730 |
|
731 |
static inline bool ehci_async_enabled(EHCIState *s) |
732 |
{ |
733 |
return ehci_enabled(s) && (s->usbcmd & USBCMD_ASE);
|
734 |
} |
735 |
|
736 |
static inline bool ehci_periodic_enabled(EHCIState *s) |
737 |
{ |
738 |
return ehci_enabled(s) && (s->usbcmd & USBCMD_PSE);
|
739 |
} |
740 |
|
741 |
/* packet management */
|
742 |
|
743 |
static EHCIPacket *ehci_alloc_packet(EHCIQueue *q)
|
744 |
{ |
745 |
EHCIPacket *p; |
746 |
|
747 |
p = g_new0(EHCIPacket, 1);
|
748 |
p->queue = q; |
749 |
usb_packet_init(&p->packet); |
750 |
QTAILQ_INSERT_TAIL(&q->packets, p, next); |
751 |
trace_usb_ehci_packet_action(p->queue, p, "alloc");
|
752 |
return p;
|
753 |
} |
754 |
|
755 |
static void ehci_free_packet(EHCIPacket *p) |
756 |
{ |
757 |
if (p->async == EHCI_ASYNC_FINISHED) {
|
758 |
int state = ehci_get_state(p->queue->ehci, p->queue->async);
|
759 |
/* This is a normal, but rare condition (cancel racing completion) */
|
760 |
fprintf(stderr, "EHCI: Warning packet completed but not processed\n");
|
761 |
ehci_state_executing(p->queue); |
762 |
ehci_state_writeback(p->queue); |
763 |
ehci_set_state(p->queue->ehci, p->queue->async, state); |
764 |
/* state_writeback recurses into us with async == EHCI_ASYNC_NONE!! */
|
765 |
return;
|
766 |
} |
767 |
trace_usb_ehci_packet_action(p->queue, p, "free");
|
768 |
if (p->async == EHCI_ASYNC_INITIALIZED) {
|
769 |
usb_packet_unmap(&p->packet, &p->sgl); |
770 |
qemu_sglist_destroy(&p->sgl); |
771 |
} |
772 |
if (p->async == EHCI_ASYNC_INFLIGHT) {
|
773 |
usb_cancel_packet(&p->packet); |
774 |
usb_packet_unmap(&p->packet, &p->sgl); |
775 |
qemu_sglist_destroy(&p->sgl); |
776 |
} |
777 |
QTAILQ_REMOVE(&p->queue->packets, p, next); |
778 |
usb_packet_cleanup(&p->packet); |
779 |
g_free(p); |
780 |
} |
781 |
|
782 |
/* queue management */
|
783 |
|
784 |
static EHCIQueue *ehci_alloc_queue(EHCIState *ehci, uint32_t addr, int async) |
785 |
{ |
786 |
EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; |
787 |
EHCIQueue *q; |
788 |
|
789 |
q = g_malloc0(sizeof(*q));
|
790 |
q->ehci = ehci; |
791 |
q->qhaddr = addr; |
792 |
q->async = async; |
793 |
QTAILQ_INIT(&q->packets); |
794 |
QTAILQ_INSERT_HEAD(head, q, next); |
795 |
trace_usb_ehci_queue_action(q, "alloc");
|
796 |
return q;
|
797 |
} |
798 |
|
799 |
static int ehci_cancel_queue(EHCIQueue *q) |
800 |
{ |
801 |
EHCIPacket *p; |
802 |
int packets = 0; |
803 |
|
804 |
p = QTAILQ_FIRST(&q->packets); |
805 |
if (p == NULL) { |
806 |
return 0; |
807 |
} |
808 |
|
809 |
trace_usb_ehci_queue_action(q, "cancel");
|
810 |
do {
|
811 |
ehci_free_packet(p); |
812 |
packets++; |
813 |
} while ((p = QTAILQ_FIRST(&q->packets)) != NULL); |
814 |
return packets;
|
815 |
} |
816 |
|
817 |
static int ehci_reset_queue(EHCIQueue *q) |
818 |
{ |
819 |
int packets;
|
820 |
|
821 |
trace_usb_ehci_queue_action(q, "reset");
|
822 |
packets = ehci_cancel_queue(q); |
823 |
q->dev = NULL;
|
824 |
q->qtdaddr = 0;
|
825 |
return packets;
|
826 |
} |
827 |
|
828 |
static void ehci_free_queue(EHCIQueue *q, const char *warn) |
829 |
{ |
830 |
EHCIQueueHead *head = q->async ? &q->ehci->aqueues : &q->ehci->pqueues; |
831 |
int cancelled;
|
832 |
|
833 |
trace_usb_ehci_queue_action(q, "free");
|
834 |
cancelled = ehci_cancel_queue(q); |
835 |
if (warn && cancelled > 0) { |
836 |
ehci_trace_guest_bug(q->ehci, warn); |
837 |
} |
838 |
QTAILQ_REMOVE(head, q, next); |
839 |
g_free(q); |
840 |
} |
841 |
|
842 |
static EHCIQueue *ehci_find_queue_by_qh(EHCIState *ehci, uint32_t addr,
|
843 |
int async)
|
844 |
{ |
845 |
EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; |
846 |
EHCIQueue *q; |
847 |
|
848 |
QTAILQ_FOREACH(q, head, next) { |
849 |
if (addr == q->qhaddr) {
|
850 |
return q;
|
851 |
} |
852 |
} |
853 |
return NULL; |
854 |
} |
855 |
|
856 |
static void ehci_queues_rip_unused(EHCIState *ehci, int async, int flush) |
857 |
{ |
858 |
EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; |
859 |
const char *warn = (async && !flush) ? "guest unlinked busy QH" : NULL; |
860 |
uint64_t maxage = FRAME_TIMER_NS * ehci->maxframes * 4;
|
861 |
EHCIQueue *q, *tmp; |
862 |
|
863 |
QTAILQ_FOREACH_SAFE(q, head, next, tmp) { |
864 |
if (q->seen) {
|
865 |
q->seen = 0;
|
866 |
q->ts = ehci->last_run_ns; |
867 |
continue;
|
868 |
} |
869 |
if (!flush && ehci->last_run_ns < q->ts + maxage) {
|
870 |
continue;
|
871 |
} |
872 |
ehci_free_queue(q, warn); |
873 |
} |
874 |
} |
875 |
|
876 |
static void ehci_queues_rip_device(EHCIState *ehci, USBDevice *dev, int async) |
877 |
{ |
878 |
EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; |
879 |
EHCIQueue *q, *tmp; |
880 |
|
881 |
QTAILQ_FOREACH_SAFE(q, head, next, tmp) { |
882 |
if (q->dev != dev) {
|
883 |
continue;
|
884 |
} |
885 |
ehci_free_queue(q, NULL);
|
886 |
} |
887 |
} |
888 |
|
889 |
static void ehci_queues_rip_all(EHCIState *ehci, int async) |
890 |
{ |
891 |
EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; |
892 |
const char *warn = async ? "guest stopped busy async schedule" : NULL; |
893 |
EHCIQueue *q, *tmp; |
894 |
|
895 |
QTAILQ_FOREACH_SAFE(q, head, next, tmp) { |
896 |
ehci_free_queue(q, warn); |
897 |
} |
898 |
} |
899 |
|
900 |
/* Attach or detach a device on root hub */
|
901 |
|
902 |
static void ehci_attach(USBPort *port) |
903 |
{ |
904 |
EHCIState *s = port->opaque; |
905 |
uint32_t *portsc = &s->portsc[port->index]; |
906 |
const char *owner = (*portsc & PORTSC_POWNER) ? "comp" : "ehci"; |
907 |
|
908 |
trace_usb_ehci_port_attach(port->index, owner, port->dev->product_desc); |
909 |
|
910 |
if (*portsc & PORTSC_POWNER) {
|
911 |
USBPort *companion = s->companion_ports[port->index]; |
912 |
companion->dev = port->dev; |
913 |
companion->ops->attach(companion); |
914 |
return;
|
915 |
} |
916 |
|
917 |
*portsc |= PORTSC_CONNECT; |
918 |
*portsc |= PORTSC_CSC; |
919 |
|
920 |
ehci_raise_irq(s, USBSTS_PCD); |
921 |
ehci_commit_irq(s); |
922 |
} |
923 |
|
924 |
static void ehci_detach(USBPort *port) |
925 |
{ |
926 |
EHCIState *s = port->opaque; |
927 |
uint32_t *portsc = &s->portsc[port->index]; |
928 |
const char *owner = (*portsc & PORTSC_POWNER) ? "comp" : "ehci"; |
929 |
|
930 |
trace_usb_ehci_port_detach(port->index, owner); |
931 |
|
932 |
if (*portsc & PORTSC_POWNER) {
|
933 |
USBPort *companion = s->companion_ports[port->index]; |
934 |
companion->ops->detach(companion); |
935 |
companion->dev = NULL;
|
936 |
/*
|
937 |
* EHCI spec 4.2.2: "When a disconnect occurs... On the event,
|
938 |
* the port ownership is returned immediately to the EHCI controller."
|
939 |
*/
|
940 |
*portsc &= ~PORTSC_POWNER; |
941 |
return;
|
942 |
} |
943 |
|
944 |
ehci_queues_rip_device(s, port->dev, 0);
|
945 |
ehci_queues_rip_device(s, port->dev, 1);
|
946 |
|
947 |
*portsc &= ~(PORTSC_CONNECT|PORTSC_PED); |
948 |
*portsc |= PORTSC_CSC; |
949 |
|
950 |
ehci_raise_irq(s, USBSTS_PCD); |
951 |
ehci_commit_irq(s); |
952 |
} |
953 |
|
954 |
static void ehci_child_detach(USBPort *port, USBDevice *child) |
955 |
{ |
956 |
EHCIState *s = port->opaque; |
957 |
uint32_t portsc = s->portsc[port->index]; |
958 |
|
959 |
if (portsc & PORTSC_POWNER) {
|
960 |
USBPort *companion = s->companion_ports[port->index]; |
961 |
companion->ops->child_detach(companion, child); |
962 |
return;
|
963 |
} |
964 |
|
965 |
ehci_queues_rip_device(s, child, 0);
|
966 |
ehci_queues_rip_device(s, child, 1);
|
967 |
} |
968 |
|
969 |
static void ehci_wakeup(USBPort *port) |
970 |
{ |
971 |
EHCIState *s = port->opaque; |
972 |
uint32_t portsc = s->portsc[port->index]; |
973 |
|
974 |
if (portsc & PORTSC_POWNER) {
|
975 |
USBPort *companion = s->companion_ports[port->index]; |
976 |
if (companion->ops->wakeup) {
|
977 |
companion->ops->wakeup(companion); |
978 |
} |
979 |
return;
|
980 |
} |
981 |
|
982 |
qemu_bh_schedule(s->async_bh); |
983 |
} |
984 |
|
985 |
static int ehci_register_companion(USBBus *bus, USBPort *ports[], |
986 |
uint32_t portcount, uint32_t firstport) |
987 |
{ |
988 |
EHCIState *s = container_of(bus, EHCIState, bus); |
989 |
uint32_t i; |
990 |
|
991 |
if (firstport + portcount > NB_PORTS) {
|
992 |
qerror_report(QERR_INVALID_PARAMETER_VALUE, "firstport",
|
993 |
"firstport on masterbus");
|
994 |
error_printf_unless_qmp( |
995 |
"firstport value of %u makes companion take ports %u - %u, which "
|
996 |
"is outside of the valid range of 0 - %u\n", firstport, firstport,
|
997 |
firstport + portcount - 1, NB_PORTS - 1); |
998 |
return -1; |
999 |
} |
1000 |
|
1001 |
for (i = 0; i < portcount; i++) { |
1002 |
if (s->companion_ports[firstport + i]) {
|
1003 |
qerror_report(QERR_INVALID_PARAMETER_VALUE, "masterbus",
|
1004 |
"an USB masterbus");
|
1005 |
error_printf_unless_qmp( |
1006 |
"port %u on masterbus %s already has a companion assigned\n",
|
1007 |
firstport + i, bus->qbus.name); |
1008 |
return -1; |
1009 |
} |
1010 |
} |
1011 |
|
1012 |
for (i = 0; i < portcount; i++) { |
1013 |
s->companion_ports[firstport + i] = ports[i]; |
1014 |
s->ports[firstport + i].speedmask |= |
1015 |
USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL; |
1016 |
/* Ensure devs attached before the initial reset go to the companion */
|
1017 |
s->portsc[firstport + i] = PORTSC_POWNER; |
1018 |
} |
1019 |
|
1020 |
s->companion_count++; |
1021 |
s->mmio[0x05] = (s->companion_count << 4) | portcount; |
1022 |
|
1023 |
return 0; |
1024 |
} |
1025 |
|
1026 |
static USBDevice *ehci_find_device(EHCIState *ehci, uint8_t addr)
|
1027 |
{ |
1028 |
USBDevice *dev; |
1029 |
USBPort *port; |
1030 |
int i;
|
1031 |
|
1032 |
for (i = 0; i < NB_PORTS; i++) { |
1033 |
port = &ehci->ports[i]; |
1034 |
if (!(ehci->portsc[i] & PORTSC_PED)) {
|
1035 |
DPRINTF("Port %d not enabled\n", i);
|
1036 |
continue;
|
1037 |
} |
1038 |
dev = usb_find_device(port, addr); |
1039 |
if (dev != NULL) { |
1040 |
return dev;
|
1041 |
} |
1042 |
} |
1043 |
return NULL; |
1044 |
} |
1045 |
|
1046 |
/* 4.1 host controller initialization */
|
1047 |
static void ehci_reset(void *opaque) |
1048 |
{ |
1049 |
EHCIState *s = opaque; |
1050 |
int i;
|
1051 |
USBDevice *devs[NB_PORTS]; |
1052 |
|
1053 |
trace_usb_ehci_reset(); |
1054 |
|
1055 |
/*
|
1056 |
* Do the detach before touching portsc, so that it correctly gets send to
|
1057 |
* us or to our companion based on PORTSC_POWNER before the reset.
|
1058 |
*/
|
1059 |
for(i = 0; i < NB_PORTS; i++) { |
1060 |
devs[i] = s->ports[i].dev; |
1061 |
if (devs[i] && devs[i]->attached) {
|
1062 |
usb_detach(&s->ports[i]); |
1063 |
} |
1064 |
} |
1065 |
|
1066 |
memset(&s->mmio[OPREGBASE], 0x00, MMIO_SIZE - OPREGBASE);
|
1067 |
|
1068 |
s->usbcmd = NB_MAXINTRATE << USBCMD_ITC_SH; |
1069 |
s->usbsts = USBSTS_HALT; |
1070 |
s->usbsts_pending = 0;
|
1071 |
s->usbsts_frindex = 0;
|
1072 |
|
1073 |
s->astate = EST_INACTIVE; |
1074 |
s->pstate = EST_INACTIVE; |
1075 |
|
1076 |
for(i = 0; i < NB_PORTS; i++) { |
1077 |
if (s->companion_ports[i]) {
|
1078 |
s->portsc[i] = PORTSC_POWNER | PORTSC_PPOWER; |
1079 |
} else {
|
1080 |
s->portsc[i] = PORTSC_PPOWER; |
1081 |
} |
1082 |
if (devs[i] && devs[i]->attached) {
|
1083 |
usb_attach(&s->ports[i]); |
1084 |
usb_device_reset(devs[i]); |
1085 |
} |
1086 |
} |
1087 |
ehci_queues_rip_all(s, 0);
|
1088 |
ehci_queues_rip_all(s, 1);
|
1089 |
qemu_del_timer(s->frame_timer); |
1090 |
qemu_bh_cancel(s->async_bh); |
1091 |
} |
1092 |
|
1093 |
static uint32_t ehci_mem_readb(void *ptr, target_phys_addr_t addr) |
1094 |
{ |
1095 |
EHCIState *s = ptr; |
1096 |
uint32_t val; |
1097 |
|
1098 |
val = s->mmio[addr]; |
1099 |
|
1100 |
return val;
|
1101 |
} |
1102 |
|
1103 |
static uint32_t ehci_mem_readw(void *ptr, target_phys_addr_t addr) |
1104 |
{ |
1105 |
EHCIState *s = ptr; |
1106 |
uint32_t val; |
1107 |
|
1108 |
val = s->mmio[addr] | (s->mmio[addr+1] << 8); |
1109 |
|
1110 |
return val;
|
1111 |
} |
1112 |
|
1113 |
static uint32_t ehci_mem_readl(void *ptr, target_phys_addr_t addr) |
1114 |
{ |
1115 |
EHCIState *s = ptr; |
1116 |
uint32_t val; |
1117 |
|
1118 |
val = s->mmio[addr] | (s->mmio[addr+1] << 8) | |
1119 |
(s->mmio[addr+2] << 16) | (s->mmio[addr+3] << 24); |
1120 |
|
1121 |
trace_usb_ehci_mmio_readl(addr, addr2str(addr), val); |
1122 |
return val;
|
1123 |
} |
1124 |
|
1125 |
static void ehci_mem_writeb(void *ptr, target_phys_addr_t addr, uint32_t val) |
1126 |
{ |
1127 |
fprintf(stderr, "EHCI doesn't handle byte writes to MMIO\n");
|
1128 |
exit(1);
|
1129 |
} |
1130 |
|
1131 |
static void ehci_mem_writew(void *ptr, target_phys_addr_t addr, uint32_t val) |
1132 |
{ |
1133 |
fprintf(stderr, "EHCI doesn't handle 16-bit writes to MMIO\n");
|
1134 |
exit(1);
|
1135 |
} |
1136 |
|
1137 |
static void handle_port_owner_write(EHCIState *s, int port, uint32_t owner) |
1138 |
{ |
1139 |
USBDevice *dev = s->ports[port].dev; |
1140 |
uint32_t *portsc = &s->portsc[port]; |
1141 |
uint32_t orig; |
1142 |
|
1143 |
if (s->companion_ports[port] == NULL) |
1144 |
return;
|
1145 |
|
1146 |
owner = owner & PORTSC_POWNER; |
1147 |
orig = *portsc & PORTSC_POWNER; |
1148 |
|
1149 |
if (!(owner ^ orig)) {
|
1150 |
return;
|
1151 |
} |
1152 |
|
1153 |
if (dev && dev->attached) {
|
1154 |
usb_detach(&s->ports[port]); |
1155 |
} |
1156 |
|
1157 |
*portsc &= ~PORTSC_POWNER; |
1158 |
*portsc |= owner; |
1159 |
|
1160 |
if (dev && dev->attached) {
|
1161 |
usb_attach(&s->ports[port]); |
1162 |
} |
1163 |
} |
1164 |
|
1165 |
static void handle_port_status_write(EHCIState *s, int port, uint32_t val) |
1166 |
{ |
1167 |
uint32_t *portsc = &s->portsc[port]; |
1168 |
USBDevice *dev = s->ports[port].dev; |
1169 |
|
1170 |
/* Clear rwc bits */
|
1171 |
*portsc &= ~(val & PORTSC_RWC_MASK); |
1172 |
/* The guest may clear, but not set the PED bit */
|
1173 |
*portsc &= val | ~PORTSC_PED; |
1174 |
/* POWNER is masked out by RO_MASK as it is RO when we've no companion */
|
1175 |
handle_port_owner_write(s, port, val); |
1176 |
/* And finally apply RO_MASK */
|
1177 |
val &= PORTSC_RO_MASK; |
1178 |
|
1179 |
if ((val & PORTSC_PRESET) && !(*portsc & PORTSC_PRESET)) {
|
1180 |
trace_usb_ehci_port_reset(port, 1);
|
1181 |
} |
1182 |
|
1183 |
if (!(val & PORTSC_PRESET) &&(*portsc & PORTSC_PRESET)) {
|
1184 |
trace_usb_ehci_port_reset(port, 0);
|
1185 |
if (dev && dev->attached) {
|
1186 |
usb_port_reset(&s->ports[port]); |
1187 |
*portsc &= ~PORTSC_CSC; |
1188 |
} |
1189 |
|
1190 |
/*
|
1191 |
* Table 2.16 Set the enable bit(and enable bit change) to indicate
|
1192 |
* to SW that this port has a high speed device attached
|
1193 |
*/
|
1194 |
if (dev && dev->attached && (dev->speedmask & USB_SPEED_MASK_HIGH)) {
|
1195 |
val |= PORTSC_PED; |
1196 |
} |
1197 |
} |
1198 |
|
1199 |
*portsc &= ~PORTSC_RO_MASK; |
1200 |
*portsc |= val; |
1201 |
} |
1202 |
|
1203 |
static void ehci_mem_writel(void *ptr, target_phys_addr_t addr, uint32_t val) |
1204 |
{ |
1205 |
EHCIState *s = ptr; |
1206 |
uint32_t *mmio = (uint32_t *)(&s->mmio[addr]); |
1207 |
uint32_t old = *mmio; |
1208 |
int i;
|
1209 |
|
1210 |
trace_usb_ehci_mmio_writel(addr, addr2str(addr), val); |
1211 |
|
1212 |
/* Only aligned reads are allowed on OHCI */
|
1213 |
if (addr & 3) { |
1214 |
fprintf(stderr, "usb-ehci: Mis-aligned write to addr 0x"
|
1215 |
TARGET_FMT_plx "\n", addr);
|
1216 |
return;
|
1217 |
} |
1218 |
|
1219 |
if (addr >= PORTSC && addr < PORTSC + 4 * NB_PORTS) { |
1220 |
handle_port_status_write(s, (addr-PORTSC)/4, val);
|
1221 |
trace_usb_ehci_mmio_change(addr, addr2str(addr), *mmio, old); |
1222 |
return;
|
1223 |
} |
1224 |
|
1225 |
if (addr < OPREGBASE) {
|
1226 |
fprintf(stderr, "usb-ehci: write attempt to read-only register"
|
1227 |
TARGET_FMT_plx "\n", addr);
|
1228 |
return;
|
1229 |
} |
1230 |
|
1231 |
|
1232 |
/* Do any register specific pre-write processing here. */
|
1233 |
switch(addr) {
|
1234 |
case USBCMD:
|
1235 |
if (val & USBCMD_HCRESET) {
|
1236 |
ehci_reset(s); |
1237 |
val = s->usbcmd; |
1238 |
break;
|
1239 |
} |
1240 |
|
1241 |
/* not supporting dynamic frame list size at the moment */
|
1242 |
if ((val & USBCMD_FLS) && !(s->usbcmd & USBCMD_FLS)) {
|
1243 |
fprintf(stderr, "attempt to set frame list size -- value %d\n",
|
1244 |
val & USBCMD_FLS); |
1245 |
val &= ~USBCMD_FLS; |
1246 |
} |
1247 |
|
1248 |
if (val & USBCMD_IAAD) {
|
1249 |
/*
|
1250 |
* Process IAAD immediately, otherwise the Linux IAAD watchdog may
|
1251 |
* trigger and re-use a qh without us seeing the unlink.
|
1252 |
*/
|
1253 |
s->async_stepdown = 0;
|
1254 |
qemu_bh_schedule(s->async_bh); |
1255 |
trace_usb_ehci_doorbell_ring(); |
1256 |
} |
1257 |
|
1258 |
if (((USBCMD_RUNSTOP | USBCMD_PSE | USBCMD_ASE) & val) !=
|
1259 |
((USBCMD_RUNSTOP | USBCMD_PSE | USBCMD_ASE) & s->usbcmd)) { |
1260 |
if (s->pstate == EST_INACTIVE) {
|
1261 |
SET_LAST_RUN_CLOCK(s); |
1262 |
} |
1263 |
s->usbcmd = val; /* Set usbcmd for ehci_update_halt() */
|
1264 |
ehci_update_halt(s); |
1265 |
s->async_stepdown = 0;
|
1266 |
qemu_mod_timer(s->frame_timer, qemu_get_clock_ns(vm_clock)); |
1267 |
} |
1268 |
break;
|
1269 |
|
1270 |
case USBSTS:
|
1271 |
val &= USBSTS_RO_MASK; // bits 6 through 31 are RO
|
1272 |
ehci_clear_usbsts(s, val); // bits 0 through 5 are R/WC
|
1273 |
val = s->usbsts; |
1274 |
ehci_update_irq(s); |
1275 |
break;
|
1276 |
|
1277 |
case USBINTR:
|
1278 |
val &= USBINTR_MASK; |
1279 |
break;
|
1280 |
|
1281 |
case FRINDEX:
|
1282 |
val &= 0x00003ff8; /* frindex is 14bits and always a multiple of 8 */ |
1283 |
break;
|
1284 |
|
1285 |
case CONFIGFLAG:
|
1286 |
val &= 0x1;
|
1287 |
if (val) {
|
1288 |
for(i = 0; i < NB_PORTS; i++) |
1289 |
handle_port_owner_write(s, i, 0);
|
1290 |
} |
1291 |
break;
|
1292 |
|
1293 |
case PERIODICLISTBASE:
|
1294 |
if (ehci_periodic_enabled(s)) {
|
1295 |
fprintf(stderr, |
1296 |
"ehci: PERIODIC list base register set while periodic schedule\n"
|
1297 |
" is enabled and HC is enabled\n");
|
1298 |
} |
1299 |
break;
|
1300 |
|
1301 |
case ASYNCLISTADDR:
|
1302 |
if (ehci_async_enabled(s)) {
|
1303 |
fprintf(stderr, |
1304 |
"ehci: ASYNC list address register set while async schedule\n"
|
1305 |
" is enabled and HC is enabled\n");
|
1306 |
} |
1307 |
break;
|
1308 |
} |
1309 |
|
1310 |
*mmio = val; |
1311 |
trace_usb_ehci_mmio_change(addr, addr2str(addr), *mmio, old); |
1312 |
} |
1313 |
|
1314 |
|
1315 |
// TODO : Put in common header file, duplication from usb-ohci.c
|
1316 |
|
1317 |
/* Get an array of dwords from main memory */
|
1318 |
static inline int get_dwords(EHCIState *ehci, uint32_t addr, |
1319 |
uint32_t *buf, int num)
|
1320 |
{ |
1321 |
int i;
|
1322 |
|
1323 |
for(i = 0; i < num; i++, buf++, addr += sizeof(*buf)) { |
1324 |
pci_dma_read(&ehci->dev, addr, buf, sizeof(*buf));
|
1325 |
*buf = le32_to_cpu(*buf); |
1326 |
} |
1327 |
|
1328 |
return 1; |
1329 |
} |
1330 |
|
1331 |
/* Put an array of dwords in to main memory */
|
1332 |
static inline int put_dwords(EHCIState *ehci, uint32_t addr, |
1333 |
uint32_t *buf, int num)
|
1334 |
{ |
1335 |
int i;
|
1336 |
|
1337 |
for(i = 0; i < num; i++, buf++, addr += sizeof(*buf)) { |
1338 |
uint32_t tmp = cpu_to_le32(*buf); |
1339 |
pci_dma_write(&ehci->dev, addr, &tmp, sizeof(tmp));
|
1340 |
} |
1341 |
|
1342 |
return 1; |
1343 |
} |
1344 |
|
1345 |
/*
|
1346 |
* Write the qh back to guest physical memory. This step isn't
|
1347 |
* in the EHCI spec but we need to do it since we don't share
|
1348 |
* physical memory with our guest VM.
|
1349 |
*
|
1350 |
* The first three dwords are read-only for the EHCI, so skip them
|
1351 |
* when writing back the qh.
|
1352 |
*/
|
1353 |
static void ehci_flush_qh(EHCIQueue *q) |
1354 |
{ |
1355 |
uint32_t *qh = (uint32_t *) &q->qh; |
1356 |
uint32_t dwords = sizeof(EHCIqh) >> 2; |
1357 |
uint32_t addr = NLPTR_GET(q->qhaddr); |
1358 |
|
1359 |
put_dwords(q->ehci, addr + 3 * sizeof(uint32_t), qh + 3, dwords - 3); |
1360 |
} |
1361 |
|
1362 |
// 4.10.2
|
1363 |
|
1364 |
static int ehci_qh_do_overlay(EHCIQueue *q) |
1365 |
{ |
1366 |
EHCIPacket *p = QTAILQ_FIRST(&q->packets); |
1367 |
int i;
|
1368 |
int dtoggle;
|
1369 |
int ping;
|
1370 |
int eps;
|
1371 |
int reload;
|
1372 |
|
1373 |
assert(p != NULL);
|
1374 |
assert(p->qtdaddr == q->qtdaddr); |
1375 |
|
1376 |
// remember values in fields to preserve in qh after overlay
|
1377 |
|
1378 |
dtoggle = q->qh.token & QTD_TOKEN_DTOGGLE; |
1379 |
ping = q->qh.token & QTD_TOKEN_PING; |
1380 |
|
1381 |
q->qh.current_qtd = p->qtdaddr; |
1382 |
q->qh.next_qtd = p->qtd.next; |
1383 |
q->qh.altnext_qtd = p->qtd.altnext; |
1384 |
q->qh.token = p->qtd.token; |
1385 |
|
1386 |
|
1387 |
eps = get_field(q->qh.epchar, QH_EPCHAR_EPS); |
1388 |
if (eps == EHCI_QH_EPS_HIGH) {
|
1389 |
q->qh.token &= ~QTD_TOKEN_PING; |
1390 |
q->qh.token |= ping; |
1391 |
} |
1392 |
|
1393 |
reload = get_field(q->qh.epchar, QH_EPCHAR_RL); |
1394 |
set_field(&q->qh.altnext_qtd, reload, QH_ALTNEXT_NAKCNT); |
1395 |
|
1396 |
for (i = 0; i < 5; i++) { |
1397 |
q->qh.bufptr[i] = p->qtd.bufptr[i]; |
1398 |
} |
1399 |
|
1400 |
if (!(q->qh.epchar & QH_EPCHAR_DTC)) {
|
1401 |
// preserve QH DT bit
|
1402 |
q->qh.token &= ~QTD_TOKEN_DTOGGLE; |
1403 |
q->qh.token |= dtoggle; |
1404 |
} |
1405 |
|
1406 |
q->qh.bufptr[1] &= ~BUFPTR_CPROGMASK_MASK;
|
1407 |
q->qh.bufptr[2] &= ~BUFPTR_FRAMETAG_MASK;
|
1408 |
|
1409 |
ehci_flush_qh(q); |
1410 |
|
1411 |
return 0; |
1412 |
} |
1413 |
|
1414 |
static int ehci_init_transfer(EHCIPacket *p) |
1415 |
{ |
1416 |
uint32_t cpage, offset, bytes, plen; |
1417 |
dma_addr_t page; |
1418 |
|
1419 |
cpage = get_field(p->qtd.token, QTD_TOKEN_CPAGE); |
1420 |
bytes = get_field(p->qtd.token, QTD_TOKEN_TBYTES); |
1421 |
offset = p->qtd.bufptr[0] & ~QTD_BUFPTR_MASK;
|
1422 |
pci_dma_sglist_init(&p->sgl, &p->queue->ehci->dev, 5);
|
1423 |
|
1424 |
while (bytes > 0) { |
1425 |
if (cpage > 4) { |
1426 |
fprintf(stderr, "cpage out of range (%d)\n", cpage);
|
1427 |
return USB_RET_PROCERR;
|
1428 |
} |
1429 |
|
1430 |
page = p->qtd.bufptr[cpage] & QTD_BUFPTR_MASK; |
1431 |
page += offset; |
1432 |
plen = bytes; |
1433 |
if (plen > 4096 - offset) { |
1434 |
plen = 4096 - offset;
|
1435 |
offset = 0;
|
1436 |
cpage++; |
1437 |
} |
1438 |
|
1439 |
qemu_sglist_add(&p->sgl, page, plen); |
1440 |
bytes -= plen; |
1441 |
} |
1442 |
return 0; |
1443 |
} |
1444 |
|
1445 |
static void ehci_finish_transfer(EHCIQueue *q, int status) |
1446 |
{ |
1447 |
uint32_t cpage, offset; |
1448 |
|
1449 |
if (status > 0) { |
1450 |
/* update cpage & offset */
|
1451 |
cpage = get_field(q->qh.token, QTD_TOKEN_CPAGE); |
1452 |
offset = q->qh.bufptr[0] & ~QTD_BUFPTR_MASK;
|
1453 |
|
1454 |
offset += status; |
1455 |
cpage += offset >> QTD_BUFPTR_SH; |
1456 |
offset &= ~QTD_BUFPTR_MASK; |
1457 |
|
1458 |
set_field(&q->qh.token, cpage, QTD_TOKEN_CPAGE); |
1459 |
q->qh.bufptr[0] &= QTD_BUFPTR_MASK;
|
1460 |
q->qh.bufptr[0] |= offset;
|
1461 |
} |
1462 |
} |
1463 |
|
1464 |
static void ehci_async_complete_packet(USBPort *port, USBPacket *packet) |
1465 |
{ |
1466 |
EHCIPacket *p; |
1467 |
EHCIState *s = port->opaque; |
1468 |
uint32_t portsc = s->portsc[port->index]; |
1469 |
|
1470 |
if (portsc & PORTSC_POWNER) {
|
1471 |
USBPort *companion = s->companion_ports[port->index]; |
1472 |
companion->ops->complete(companion, packet); |
1473 |
return;
|
1474 |
} |
1475 |
|
1476 |
p = container_of(packet, EHCIPacket, packet); |
1477 |
trace_usb_ehci_packet_action(p->queue, p, "wakeup");
|
1478 |
assert(p->async == EHCI_ASYNC_INFLIGHT); |
1479 |
p->async = EHCI_ASYNC_FINISHED; |
1480 |
p->usb_status = packet->result; |
1481 |
|
1482 |
if (p->queue->async) {
|
1483 |
qemu_bh_schedule(p->queue->ehci->async_bh); |
1484 |
} |
1485 |
} |
1486 |
|
1487 |
static void ehci_execute_complete(EHCIQueue *q) |
1488 |
{ |
1489 |
EHCIPacket *p = QTAILQ_FIRST(&q->packets); |
1490 |
|
1491 |
assert(p != NULL);
|
1492 |
assert(p->qtdaddr == q->qtdaddr); |
1493 |
assert(p->async == EHCI_ASYNC_INITIALIZED || |
1494 |
p->async == EHCI_ASYNC_FINISHED); |
1495 |
|
1496 |
DPRINTF("execute_complete: qhaddr 0x%x, next %x, qtdaddr 0x%x, status %d\n",
|
1497 |
q->qhaddr, q->qh.next, q->qtdaddr, q->usb_status); |
1498 |
|
1499 |
if (p->usb_status < 0) { |
1500 |
switch (p->usb_status) {
|
1501 |
case USB_RET_IOERROR:
|
1502 |
case USB_RET_NODEV:
|
1503 |
q->qh.token |= (QTD_TOKEN_HALT | QTD_TOKEN_XACTERR); |
1504 |
set_field(&q->qh.token, 0, QTD_TOKEN_CERR);
|
1505 |
ehci_raise_irq(q->ehci, USBSTS_ERRINT); |
1506 |
break;
|
1507 |
case USB_RET_STALL:
|
1508 |
q->qh.token |= QTD_TOKEN_HALT; |
1509 |
ehci_raise_irq(q->ehci, USBSTS_ERRINT); |
1510 |
break;
|
1511 |
case USB_RET_NAK:
|
1512 |
set_field(&q->qh.altnext_qtd, 0, QH_ALTNEXT_NAKCNT);
|
1513 |
return; /* We're not done yet with this transaction */ |
1514 |
case USB_RET_BABBLE:
|
1515 |
q->qh.token |= (QTD_TOKEN_HALT | QTD_TOKEN_BABBLE); |
1516 |
ehci_raise_irq(q->ehci, USBSTS_ERRINT); |
1517 |
break;
|
1518 |
default:
|
1519 |
/* should not be triggerable */
|
1520 |
fprintf(stderr, "USB invalid response %d\n", p->usb_status);
|
1521 |
assert(0);
|
1522 |
break;
|
1523 |
} |
1524 |
} else {
|
1525 |
// TODO check 4.12 for splits
|
1526 |
|
1527 |
if (p->tbytes && p->pid == USB_TOKEN_IN) {
|
1528 |
p->tbytes -= p->usb_status; |
1529 |
} else {
|
1530 |
p->tbytes = 0;
|
1531 |
} |
1532 |
|
1533 |
DPRINTF("updating tbytes to %d\n", p->tbytes);
|
1534 |
set_field(&q->qh.token, p->tbytes, QTD_TOKEN_TBYTES); |
1535 |
} |
1536 |
ehci_finish_transfer(q, p->usb_status); |
1537 |
usb_packet_unmap(&p->packet, &p->sgl); |
1538 |
qemu_sglist_destroy(&p->sgl); |
1539 |
p->async = EHCI_ASYNC_NONE; |
1540 |
|
1541 |
q->qh.token ^= QTD_TOKEN_DTOGGLE; |
1542 |
q->qh.token &= ~QTD_TOKEN_ACTIVE; |
1543 |
|
1544 |
if (q->qh.token & QTD_TOKEN_IOC) {
|
1545 |
ehci_raise_irq(q->ehci, USBSTS_INT); |
1546 |
} |
1547 |
} |
1548 |
|
1549 |
// 4.10.3
|
1550 |
|
1551 |
static int ehci_execute(EHCIPacket *p, const char *action) |
1552 |
{ |
1553 |
USBEndpoint *ep; |
1554 |
int ret;
|
1555 |
int endp;
|
1556 |
|
1557 |
assert(p->async == EHCI_ASYNC_NONE || |
1558 |
p->async == EHCI_ASYNC_INITIALIZED); |
1559 |
|
1560 |
if (!(p->qtd.token & QTD_TOKEN_ACTIVE)) {
|
1561 |
fprintf(stderr, "Attempting to execute inactive qtd\n");
|
1562 |
return USB_RET_PROCERR;
|
1563 |
} |
1564 |
|
1565 |
p->tbytes = (p->qtd.token & QTD_TOKEN_TBYTES_MASK) >> QTD_TOKEN_TBYTES_SH; |
1566 |
if (p->tbytes > BUFF_SIZE) {
|
1567 |
ehci_trace_guest_bug(p->queue->ehci, |
1568 |
"guest requested more bytes than allowed");
|
1569 |
return USB_RET_PROCERR;
|
1570 |
} |
1571 |
|
1572 |
p->pid = (p->qtd.token & QTD_TOKEN_PID_MASK) >> QTD_TOKEN_PID_SH; |
1573 |
switch (p->pid) {
|
1574 |
case 0: |
1575 |
p->pid = USB_TOKEN_OUT; |
1576 |
break;
|
1577 |
case 1: |
1578 |
p->pid = USB_TOKEN_IN; |
1579 |
break;
|
1580 |
case 2: |
1581 |
p->pid = USB_TOKEN_SETUP; |
1582 |
break;
|
1583 |
default:
|
1584 |
fprintf(stderr, "bad token\n");
|
1585 |
break;
|
1586 |
} |
1587 |
|
1588 |
endp = get_field(p->queue->qh.epchar, QH_EPCHAR_EP); |
1589 |
ep = usb_ep_get(p->queue->dev, p->pid, endp); |
1590 |
|
1591 |
if (p->async == EHCI_ASYNC_NONE) {
|
1592 |
if (ehci_init_transfer(p) != 0) { |
1593 |
return USB_RET_PROCERR;
|
1594 |
} |
1595 |
|
1596 |
usb_packet_setup(&p->packet, p->pid, ep, p->qtdaddr); |
1597 |
usb_packet_map(&p->packet, &p->sgl); |
1598 |
p->async = EHCI_ASYNC_INITIALIZED; |
1599 |
} |
1600 |
|
1601 |
trace_usb_ehci_packet_action(p->queue, p, action); |
1602 |
ret = usb_handle_packet(p->queue->dev, &p->packet); |
1603 |
DPRINTF("submit: qh %x next %x qtd %x pid %x len %zd "
|
1604 |
"(total %d) endp %x ret %d\n",
|
1605 |
q->qhaddr, q->qh.next, q->qtdaddr, q->pid, |
1606 |
q->packet.iov.size, q->tbytes, endp, ret); |
1607 |
|
1608 |
if (ret > BUFF_SIZE) {
|
1609 |
fprintf(stderr, "ret from usb_handle_packet > BUFF_SIZE\n");
|
1610 |
return USB_RET_PROCERR;
|
1611 |
} |
1612 |
|
1613 |
return ret;
|
1614 |
} |
1615 |
|
1616 |
/* 4.7.2
|
1617 |
*/
|
1618 |
|
1619 |
static int ehci_process_itd(EHCIState *ehci, |
1620 |
EHCIitd *itd, |
1621 |
uint32_t addr) |
1622 |
{ |
1623 |
USBDevice *dev; |
1624 |
USBEndpoint *ep; |
1625 |
int ret;
|
1626 |
uint32_t i, len, pid, dir, devaddr, endp; |
1627 |
uint32_t pg, off, ptr1, ptr2, max, mult; |
1628 |
|
1629 |
dir =(itd->bufptr[1] & ITD_BUFPTR_DIRECTION);
|
1630 |
devaddr = get_field(itd->bufptr[0], ITD_BUFPTR_DEVADDR);
|
1631 |
endp = get_field(itd->bufptr[0], ITD_BUFPTR_EP);
|
1632 |
max = get_field(itd->bufptr[1], ITD_BUFPTR_MAXPKT);
|
1633 |
mult = get_field(itd->bufptr[2], ITD_BUFPTR_MULT);
|
1634 |
|
1635 |
for(i = 0; i < 8; i++) { |
1636 |
if (itd->transact[i] & ITD_XACT_ACTIVE) {
|
1637 |
pg = get_field(itd->transact[i], ITD_XACT_PGSEL); |
1638 |
off = itd->transact[i] & ITD_XACT_OFFSET_MASK; |
1639 |
ptr1 = (itd->bufptr[pg] & ITD_BUFPTR_MASK); |
1640 |
ptr2 = (itd->bufptr[pg+1] & ITD_BUFPTR_MASK);
|
1641 |
len = get_field(itd->transact[i], ITD_XACT_LENGTH); |
1642 |
|
1643 |
if (len > max * mult) {
|
1644 |
len = max * mult; |
1645 |
} |
1646 |
|
1647 |
if (len > BUFF_SIZE) {
|
1648 |
return USB_RET_PROCERR;
|
1649 |
} |
1650 |
|
1651 |
pci_dma_sglist_init(&ehci->isgl, &ehci->dev, 2);
|
1652 |
if (off + len > 4096) { |
1653 |
/* transfer crosses page border */
|
1654 |
uint32_t len2 = off + len - 4096;
|
1655 |
uint32_t len1 = len - len2; |
1656 |
qemu_sglist_add(&ehci->isgl, ptr1 + off, len1); |
1657 |
qemu_sglist_add(&ehci->isgl, ptr2, len2); |
1658 |
} else {
|
1659 |
qemu_sglist_add(&ehci->isgl, ptr1 + off, len); |
1660 |
} |
1661 |
|
1662 |
pid = dir ? USB_TOKEN_IN : USB_TOKEN_OUT; |
1663 |
|
1664 |
dev = ehci_find_device(ehci, devaddr); |
1665 |
ep = usb_ep_get(dev, pid, endp); |
1666 |
if (ep && ep->type == USB_ENDPOINT_XFER_ISOC) {
|
1667 |
usb_packet_setup(&ehci->ipacket, pid, ep, addr); |
1668 |
usb_packet_map(&ehci->ipacket, &ehci->isgl); |
1669 |
ret = usb_handle_packet(dev, &ehci->ipacket); |
1670 |
assert(ret != USB_RET_ASYNC); |
1671 |
usb_packet_unmap(&ehci->ipacket, &ehci->isgl); |
1672 |
} else {
|
1673 |
DPRINTF("ISOCH: attempt to addess non-iso endpoint\n");
|
1674 |
ret = USB_RET_NAK; |
1675 |
} |
1676 |
qemu_sglist_destroy(&ehci->isgl); |
1677 |
|
1678 |
if (ret < 0) { |
1679 |
switch (ret) {
|
1680 |
default:
|
1681 |
fprintf(stderr, "Unexpected iso usb result: %d\n", ret);
|
1682 |
/* Fall through */
|
1683 |
case USB_RET_IOERROR:
|
1684 |
case USB_RET_NODEV:
|
1685 |
/* 3.3.2: XACTERR is only allowed on IN transactions */
|
1686 |
if (dir) {
|
1687 |
itd->transact[i] |= ITD_XACT_XACTERR; |
1688 |
ehci_raise_irq(ehci, USBSTS_ERRINT); |
1689 |
} |
1690 |
break;
|
1691 |
case USB_RET_BABBLE:
|
1692 |
itd->transact[i] |= ITD_XACT_BABBLE; |
1693 |
ehci_raise_irq(ehci, USBSTS_ERRINT); |
1694 |
break;
|
1695 |
case USB_RET_NAK:
|
1696 |
/* no data for us, so do a zero-length transfer */
|
1697 |
ret = 0;
|
1698 |
break;
|
1699 |
} |
1700 |
} |
1701 |
if (ret >= 0) { |
1702 |
if (!dir) {
|
1703 |
/* OUT */
|
1704 |
set_field(&itd->transact[i], len - ret, ITD_XACT_LENGTH); |
1705 |
} else {
|
1706 |
/* IN */
|
1707 |
set_field(&itd->transact[i], ret, ITD_XACT_LENGTH); |
1708 |
} |
1709 |
} |
1710 |
if (itd->transact[i] & ITD_XACT_IOC) {
|
1711 |
ehci_raise_irq(ehci, USBSTS_INT); |
1712 |
} |
1713 |
itd->transact[i] &= ~ITD_XACT_ACTIVE; |
1714 |
} |
1715 |
} |
1716 |
return 0; |
1717 |
} |
1718 |
|
1719 |
|
1720 |
/* This state is the entry point for asynchronous schedule
|
1721 |
* processing. Entry here consitutes a EHCI start event state (4.8.5)
|
1722 |
*/
|
1723 |
static int ehci_state_waitlisthead(EHCIState *ehci, int async) |
1724 |
{ |
1725 |
EHCIqh qh; |
1726 |
int i = 0; |
1727 |
int again = 0; |
1728 |
uint32_t entry = ehci->asynclistaddr; |
1729 |
|
1730 |
/* set reclamation flag at start event (4.8.6) */
|
1731 |
if (async) {
|
1732 |
ehci_set_usbsts(ehci, USBSTS_REC); |
1733 |
} |
1734 |
|
1735 |
ehci_queues_rip_unused(ehci, async, 0);
|
1736 |
|
1737 |
/* Find the head of the list (4.9.1.1) */
|
1738 |
for(i = 0; i < MAX_QH; i++) { |
1739 |
get_dwords(ehci, NLPTR_GET(entry), (uint32_t *) &qh, |
1740 |
sizeof(EHCIqh) >> 2); |
1741 |
ehci_trace_qh(NULL, NLPTR_GET(entry), &qh);
|
1742 |
|
1743 |
if (qh.epchar & QH_EPCHAR_H) {
|
1744 |
if (async) {
|
1745 |
entry |= (NLPTR_TYPE_QH << 1);
|
1746 |
} |
1747 |
|
1748 |
ehci_set_fetch_addr(ehci, async, entry); |
1749 |
ehci_set_state(ehci, async, EST_FETCHENTRY); |
1750 |
again = 1;
|
1751 |
goto out;
|
1752 |
} |
1753 |
|
1754 |
entry = qh.next; |
1755 |
if (entry == ehci->asynclistaddr) {
|
1756 |
break;
|
1757 |
} |
1758 |
} |
1759 |
|
1760 |
/* no head found for list. */
|
1761 |
|
1762 |
ehci_set_state(ehci, async, EST_ACTIVE); |
1763 |
|
1764 |
out:
|
1765 |
return again;
|
1766 |
} |
1767 |
|
1768 |
|
1769 |
/* This state is the entry point for periodic schedule processing as
|
1770 |
* well as being a continuation state for async processing.
|
1771 |
*/
|
1772 |
static int ehci_state_fetchentry(EHCIState *ehci, int async) |
1773 |
{ |
1774 |
int again = 0; |
1775 |
uint32_t entry = ehci_get_fetch_addr(ehci, async); |
1776 |
|
1777 |
if (NLPTR_TBIT(entry)) {
|
1778 |
ehci_set_state(ehci, async, EST_ACTIVE); |
1779 |
goto out;
|
1780 |
} |
1781 |
|
1782 |
/* section 4.8, only QH in async schedule */
|
1783 |
if (async && (NLPTR_TYPE_GET(entry) != NLPTR_TYPE_QH)) {
|
1784 |
fprintf(stderr, "non queue head request in async schedule\n");
|
1785 |
return -1; |
1786 |
} |
1787 |
|
1788 |
switch (NLPTR_TYPE_GET(entry)) {
|
1789 |
case NLPTR_TYPE_QH:
|
1790 |
ehci_set_state(ehci, async, EST_FETCHQH); |
1791 |
again = 1;
|
1792 |
break;
|
1793 |
|
1794 |
case NLPTR_TYPE_ITD:
|
1795 |
ehci_set_state(ehci, async, EST_FETCHITD); |
1796 |
again = 1;
|
1797 |
break;
|
1798 |
|
1799 |
case NLPTR_TYPE_STITD:
|
1800 |
ehci_set_state(ehci, async, EST_FETCHSITD); |
1801 |
again = 1;
|
1802 |
break;
|
1803 |
|
1804 |
default:
|
1805 |
/* TODO: handle FSTN type */
|
1806 |
fprintf(stderr, "FETCHENTRY: entry at %X is of type %d "
|
1807 |
"which is not supported yet\n", entry, NLPTR_TYPE_GET(entry));
|
1808 |
return -1; |
1809 |
} |
1810 |
|
1811 |
out:
|
1812 |
return again;
|
1813 |
} |
1814 |
|
1815 |
static EHCIQueue *ehci_state_fetchqh(EHCIState *ehci, int async) |
1816 |
{ |
1817 |
EHCIPacket *p; |
1818 |
uint32_t entry, devaddr, endp; |
1819 |
EHCIQueue *q; |
1820 |
EHCIqh qh; |
1821 |
|
1822 |
entry = ehci_get_fetch_addr(ehci, async); |
1823 |
q = ehci_find_queue_by_qh(ehci, entry, async); |
1824 |
if (NULL == q) { |
1825 |
q = ehci_alloc_queue(ehci, entry, async); |
1826 |
} |
1827 |
p = QTAILQ_FIRST(&q->packets); |
1828 |
|
1829 |
q->seen++; |
1830 |
if (q->seen > 1) { |
1831 |
/* we are going in circles -- stop processing */
|
1832 |
ehci_set_state(ehci, async, EST_ACTIVE); |
1833 |
q = NULL;
|
1834 |
goto out;
|
1835 |
} |
1836 |
|
1837 |
get_dwords(ehci, NLPTR_GET(q->qhaddr), |
1838 |
(uint32_t *) &qh, sizeof(EHCIqh) >> 2); |
1839 |
ehci_trace_qh(q, NLPTR_GET(q->qhaddr), &qh); |
1840 |
|
1841 |
/*
|
1842 |
* The overlay area of the qh should never be changed by the guest,
|
1843 |
* except when idle, in which case the reset is a nop.
|
1844 |
*/
|
1845 |
devaddr = get_field(qh.epchar, QH_EPCHAR_DEVADDR); |
1846 |
endp = get_field(qh.epchar, QH_EPCHAR_EP); |
1847 |
if ((devaddr != get_field(q->qh.epchar, QH_EPCHAR_DEVADDR)) ||
|
1848 |
(endp != get_field(q->qh.epchar, QH_EPCHAR_EP)) || |
1849 |
(memcmp(&qh.current_qtd, &q->qh.current_qtd, |
1850 |
9 * sizeof(uint32_t)) != 0) || |
1851 |
(q->dev != NULL && q->dev->addr != devaddr)) {
|
1852 |
if (ehci_reset_queue(q) > 0) { |
1853 |
ehci_trace_guest_bug(ehci, "guest updated active QH");
|
1854 |
} |
1855 |
p = NULL;
|
1856 |
} |
1857 |
q->qh = qh; |
1858 |
|
1859 |
if (q->dev == NULL) { |
1860 |
q->dev = ehci_find_device(q->ehci, devaddr); |
1861 |
} |
1862 |
|
1863 |
if (p && p->async == EHCI_ASYNC_FINISHED) {
|
1864 |
/* I/O finished -- continue processing queue */
|
1865 |
trace_usb_ehci_packet_action(p->queue, p, "complete");
|
1866 |
ehci_set_state(ehci, async, EST_EXECUTING); |
1867 |
goto out;
|
1868 |
} |
1869 |
|
1870 |
if (async && (q->qh.epchar & QH_EPCHAR_H)) {
|
1871 |
|
1872 |
/* EHCI spec version 1.0 Section 4.8.3 & 4.10.1 */
|
1873 |
if (ehci->usbsts & USBSTS_REC) {
|
1874 |
ehci_clear_usbsts(ehci, USBSTS_REC); |
1875 |
} else {
|
1876 |
DPRINTF("FETCHQH: QH 0x%08x. H-bit set, reclamation status reset"
|
1877 |
" - done processing\n", q->qhaddr);
|
1878 |
ehci_set_state(ehci, async, EST_ACTIVE); |
1879 |
q = NULL;
|
1880 |
goto out;
|
1881 |
} |
1882 |
} |
1883 |
|
1884 |
#if EHCI_DEBUG
|
1885 |
if (q->qhaddr != q->qh.next) {
|
1886 |
DPRINTF("FETCHQH: QH 0x%08x (h %x halt %x active %x) next 0x%08x\n",
|
1887 |
q->qhaddr, |
1888 |
q->qh.epchar & QH_EPCHAR_H, |
1889 |
q->qh.token & QTD_TOKEN_HALT, |
1890 |
q->qh.token & QTD_TOKEN_ACTIVE, |
1891 |
q->qh.next); |
1892 |
} |
1893 |
#endif
|
1894 |
|
1895 |
if (q->qh.token & QTD_TOKEN_HALT) {
|
1896 |
ehci_set_state(ehci, async, EST_HORIZONTALQH); |
1897 |
|
1898 |
} else if ((q->qh.token & QTD_TOKEN_ACTIVE) && |
1899 |
(NLPTR_TBIT(q->qh.current_qtd) == 0)) {
|
1900 |
q->qtdaddr = q->qh.current_qtd; |
1901 |
ehci_set_state(ehci, async, EST_FETCHQTD); |
1902 |
|
1903 |
} else {
|
1904 |
/* EHCI spec version 1.0 Section 4.10.2 */
|
1905 |
ehci_set_state(ehci, async, EST_ADVANCEQUEUE); |
1906 |
} |
1907 |
|
1908 |
out:
|
1909 |
return q;
|
1910 |
} |
1911 |
|
1912 |
static int ehci_state_fetchitd(EHCIState *ehci, int async) |
1913 |
{ |
1914 |
uint32_t entry; |
1915 |
EHCIitd itd; |
1916 |
|
1917 |
assert(!async); |
1918 |
entry = ehci_get_fetch_addr(ehci, async); |
1919 |
|
1920 |
get_dwords(ehci, NLPTR_GET(entry), (uint32_t *) &itd, |
1921 |
sizeof(EHCIitd) >> 2); |
1922 |
ehci_trace_itd(ehci, entry, &itd); |
1923 |
|
1924 |
if (ehci_process_itd(ehci, &itd, entry) != 0) { |
1925 |
return -1; |
1926 |
} |
1927 |
|
1928 |
put_dwords(ehci, NLPTR_GET(entry), (uint32_t *) &itd, |
1929 |
sizeof(EHCIitd) >> 2); |
1930 |
ehci_set_fetch_addr(ehci, async, itd.next); |
1931 |
ehci_set_state(ehci, async, EST_FETCHENTRY); |
1932 |
|
1933 |
return 1; |
1934 |
} |
1935 |
|
1936 |
static int ehci_state_fetchsitd(EHCIState *ehci, int async) |
1937 |
{ |
1938 |
uint32_t entry; |
1939 |
EHCIsitd sitd; |
1940 |
|
1941 |
assert(!async); |
1942 |
entry = ehci_get_fetch_addr(ehci, async); |
1943 |
|
1944 |
get_dwords(ehci, NLPTR_GET(entry), (uint32_t *)&sitd, |
1945 |
sizeof(EHCIsitd) >> 2); |
1946 |
ehci_trace_sitd(ehci, entry, &sitd); |
1947 |
|
1948 |
if (!(sitd.results & SITD_RESULTS_ACTIVE)) {
|
1949 |
/* siTD is not active, nothing to do */;
|
1950 |
} else {
|
1951 |
/* TODO: split transfers are not implemented */
|
1952 |
fprintf(stderr, "WARNING: Skipping active siTD\n");
|
1953 |
} |
1954 |
|
1955 |
ehci_set_fetch_addr(ehci, async, sitd.next); |
1956 |
ehci_set_state(ehci, async, EST_FETCHENTRY); |
1957 |
return 1; |
1958 |
} |
1959 |
|
1960 |
/* Section 4.10.2 - paragraph 3 */
|
1961 |
static int ehci_state_advqueue(EHCIQueue *q) |
1962 |
{ |
1963 |
#if 0
|
1964 |
/* TO-DO: 4.10.2 - paragraph 2
|
1965 |
* if I-bit is set to 1 and QH is not active
|
1966 |
* go to horizontal QH
|
1967 |
*/
|
1968 |
if (I-bit set) {
|
1969 |
ehci_set_state(ehci, async, EST_HORIZONTALQH);
|
1970 |
goto out;
|
1971 |
}
|
1972 |
#endif
|
1973 |
|
1974 |
/*
|
1975 |
* want data and alt-next qTD is valid
|
1976 |
*/
|
1977 |
if (((q->qh.token & QTD_TOKEN_TBYTES_MASK) != 0) && |
1978 |
(NLPTR_TBIT(q->qh.altnext_qtd) == 0)) {
|
1979 |
q->qtdaddr = q->qh.altnext_qtd; |
1980 |
ehci_set_state(q->ehci, q->async, EST_FETCHQTD); |
1981 |
|
1982 |
/*
|
1983 |
* next qTD is valid
|
1984 |
*/
|
1985 |
} else if (NLPTR_TBIT(q->qh.next_qtd) == 0) { |
1986 |
q->qtdaddr = q->qh.next_qtd; |
1987 |
ehci_set_state(q->ehci, q->async, EST_FETCHQTD); |
1988 |
|
1989 |
/*
|
1990 |
* no valid qTD, try next QH
|
1991 |
*/
|
1992 |
} else {
|
1993 |
ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); |
1994 |
} |
1995 |
|
1996 |
return 1; |
1997 |
} |
1998 |
|
1999 |
/* Section 4.10.2 - paragraph 4 */
|
2000 |
static int ehci_state_fetchqtd(EHCIQueue *q) |
2001 |
{ |
2002 |
EHCIqtd qtd; |
2003 |
EHCIPacket *p; |
2004 |
int again = 0; |
2005 |
|
2006 |
get_dwords(q->ehci, NLPTR_GET(q->qtdaddr), (uint32_t *) &qtd, |
2007 |
sizeof(EHCIqtd) >> 2); |
2008 |
ehci_trace_qtd(q, NLPTR_GET(q->qtdaddr), &qtd); |
2009 |
|
2010 |
p = QTAILQ_FIRST(&q->packets); |
2011 |
if (p != NULL) { |
2012 |
if (p->qtdaddr != q->qtdaddr ||
|
2013 |
(!NLPTR_TBIT(p->qtd.next) && (p->qtd.next != qtd.next)) || |
2014 |
(!NLPTR_TBIT(p->qtd.altnext) && (p->qtd.altnext != qtd.altnext)) || |
2015 |
p->qtd.bufptr[0] != qtd.bufptr[0]) { |
2016 |
ehci_cancel_queue(q); |
2017 |
ehci_trace_guest_bug(q->ehci, "guest updated active QH or qTD");
|
2018 |
p = NULL;
|
2019 |
} else {
|
2020 |
p->qtd = qtd; |
2021 |
ehci_qh_do_overlay(q); |
2022 |
} |
2023 |
} |
2024 |
|
2025 |
if (!(qtd.token & QTD_TOKEN_ACTIVE)) {
|
2026 |
if (p != NULL) { |
2027 |
/* transfer canceled by guest (clear active) */
|
2028 |
ehci_cancel_queue(q); |
2029 |
p = NULL;
|
2030 |
} |
2031 |
ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); |
2032 |
again = 1;
|
2033 |
} else if (p != NULL) { |
2034 |
switch (p->async) {
|
2035 |
case EHCI_ASYNC_NONE:
|
2036 |
/* Should never happen packet should at least be initialized */
|
2037 |
assert(0);
|
2038 |
break;
|
2039 |
case EHCI_ASYNC_INITIALIZED:
|
2040 |
/* Previously nacked packet (likely interrupt ep) */
|
2041 |
ehci_set_state(q->ehci, q->async, EST_EXECUTE); |
2042 |
break;
|
2043 |
case EHCI_ASYNC_INFLIGHT:
|
2044 |
/* Unfinished async handled packet, go horizontal */
|
2045 |
ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); |
2046 |
break;
|
2047 |
case EHCI_ASYNC_FINISHED:
|
2048 |
/* Should never happen, as this case is caught by fetchqh */
|
2049 |
ehci_set_state(q->ehci, q->async, EST_EXECUTING); |
2050 |
break;
|
2051 |
} |
2052 |
again = 1;
|
2053 |
} else {
|
2054 |
p = ehci_alloc_packet(q); |
2055 |
p->qtdaddr = q->qtdaddr; |
2056 |
p->qtd = qtd; |
2057 |
ehci_set_state(q->ehci, q->async, EST_EXECUTE); |
2058 |
again = 1;
|
2059 |
} |
2060 |
|
2061 |
return again;
|
2062 |
} |
2063 |
|
2064 |
static int ehci_state_horizqh(EHCIQueue *q) |
2065 |
{ |
2066 |
int again = 0; |
2067 |
|
2068 |
if (ehci_get_fetch_addr(q->ehci, q->async) != q->qh.next) {
|
2069 |
ehci_set_fetch_addr(q->ehci, q->async, q->qh.next); |
2070 |
ehci_set_state(q->ehci, q->async, EST_FETCHENTRY); |
2071 |
again = 1;
|
2072 |
} else {
|
2073 |
ehci_set_state(q->ehci, q->async, EST_ACTIVE); |
2074 |
} |
2075 |
|
2076 |
return again;
|
2077 |
} |
2078 |
|
2079 |
static void ehci_fill_queue(EHCIPacket *p) |
2080 |
{ |
2081 |
EHCIQueue *q = p->queue; |
2082 |
EHCIqtd qtd = p->qtd; |
2083 |
uint32_t qtdaddr; |
2084 |
|
2085 |
for (;;) {
|
2086 |
if (NLPTR_TBIT(qtd.altnext) == 0) { |
2087 |
break;
|
2088 |
} |
2089 |
if (NLPTR_TBIT(qtd.next) != 0) { |
2090 |
break;
|
2091 |
} |
2092 |
qtdaddr = qtd.next; |
2093 |
get_dwords(q->ehci, NLPTR_GET(qtdaddr), |
2094 |
(uint32_t *) &qtd, sizeof(EHCIqtd) >> 2); |
2095 |
ehci_trace_qtd(q, NLPTR_GET(qtdaddr), &qtd); |
2096 |
if (!(qtd.token & QTD_TOKEN_ACTIVE)) {
|
2097 |
break;
|
2098 |
} |
2099 |
p = ehci_alloc_packet(q); |
2100 |
p->qtdaddr = qtdaddr; |
2101 |
p->qtd = qtd; |
2102 |
p->usb_status = ehci_execute(p, "queue");
|
2103 |
assert(p->usb_status == USB_RET_ASYNC); |
2104 |
p->async = EHCI_ASYNC_INFLIGHT; |
2105 |
} |
2106 |
} |
2107 |
|
2108 |
static int ehci_state_execute(EHCIQueue *q) |
2109 |
{ |
2110 |
EHCIPacket *p = QTAILQ_FIRST(&q->packets); |
2111 |
int again = 0; |
2112 |
|
2113 |
assert(p != NULL);
|
2114 |
assert(p->qtdaddr == q->qtdaddr); |
2115 |
|
2116 |
if (ehci_qh_do_overlay(q) != 0) { |
2117 |
return -1; |
2118 |
} |
2119 |
|
2120 |
// TODO verify enough time remains in the uframe as in 4.4.1.1
|
2121 |
// TODO write back ptr to async list when done or out of time
|
2122 |
// TODO Windows does not seem to ever set the MULT field
|
2123 |
|
2124 |
if (!q->async) {
|
2125 |
int transactCtr = get_field(q->qh.epcap, QH_EPCAP_MULT);
|
2126 |
if (!transactCtr) {
|
2127 |
ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); |
2128 |
again = 1;
|
2129 |
goto out;
|
2130 |
} |
2131 |
} |
2132 |
|
2133 |
if (q->async) {
|
2134 |
ehci_set_usbsts(q->ehci, USBSTS_REC); |
2135 |
} |
2136 |
|
2137 |
p->usb_status = ehci_execute(p, "process");
|
2138 |
if (p->usb_status == USB_RET_PROCERR) {
|
2139 |
again = -1;
|
2140 |
goto out;
|
2141 |
} |
2142 |
if (p->usb_status == USB_RET_ASYNC) {
|
2143 |
ehci_flush_qh(q); |
2144 |
trace_usb_ehci_packet_action(p->queue, p, "async");
|
2145 |
p->async = EHCI_ASYNC_INFLIGHT; |
2146 |
ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); |
2147 |
again = 1;
|
2148 |
ehci_fill_queue(p); |
2149 |
goto out;
|
2150 |
} |
2151 |
|
2152 |
ehci_set_state(q->ehci, q->async, EST_EXECUTING); |
2153 |
again = 1;
|
2154 |
|
2155 |
out:
|
2156 |
return again;
|
2157 |
} |
2158 |
|
2159 |
static int ehci_state_executing(EHCIQueue *q) |
2160 |
{ |
2161 |
EHCIPacket *p = QTAILQ_FIRST(&q->packets); |
2162 |
|
2163 |
assert(p != NULL);
|
2164 |
assert(p->qtdaddr == q->qtdaddr); |
2165 |
|
2166 |
ehci_execute_complete(q); |
2167 |
|
2168 |
// 4.10.3
|
2169 |
if (!q->async) {
|
2170 |
int transactCtr = get_field(q->qh.epcap, QH_EPCAP_MULT);
|
2171 |
transactCtr--; |
2172 |
set_field(&q->qh.epcap, transactCtr, QH_EPCAP_MULT); |
2173 |
// 4.10.3, bottom of page 82, should exit this state when transaction
|
2174 |
// counter decrements to 0
|
2175 |
} |
2176 |
|
2177 |
/* 4.10.5 */
|
2178 |
if (p->usb_status == USB_RET_NAK) {
|
2179 |
ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); |
2180 |
} else {
|
2181 |
ehci_set_state(q->ehci, q->async, EST_WRITEBACK); |
2182 |
} |
2183 |
|
2184 |
ehci_flush_qh(q); |
2185 |
return 1; |
2186 |
} |
2187 |
|
2188 |
|
2189 |
static int ehci_state_writeback(EHCIQueue *q) |
2190 |
{ |
2191 |
EHCIPacket *p = QTAILQ_FIRST(&q->packets); |
2192 |
uint32_t *qtd, addr; |
2193 |
int again = 0; |
2194 |
|
2195 |
/* Write back the QTD from the QH area */
|
2196 |
assert(p != NULL);
|
2197 |
assert(p->qtdaddr == q->qtdaddr); |
2198 |
|
2199 |
ehci_trace_qtd(q, NLPTR_GET(p->qtdaddr), (EHCIqtd *) &q->qh.next_qtd); |
2200 |
qtd = (uint32_t *) &q->qh.next_qtd; |
2201 |
addr = NLPTR_GET(p->qtdaddr); |
2202 |
put_dwords(q->ehci, addr + 2 * sizeof(uint32_t), qtd + 2, 2); |
2203 |
ehci_free_packet(p); |
2204 |
|
2205 |
/*
|
2206 |
* EHCI specs say go horizontal here.
|
2207 |
*
|
2208 |
* We can also advance the queue here for performance reasons. We
|
2209 |
* need to take care to only take that shortcut in case we've
|
2210 |
* processed the qtd just written back without errors, i.e. halt
|
2211 |
* bit is clear.
|
2212 |
*/
|
2213 |
if (q->qh.token & QTD_TOKEN_HALT) {
|
2214 |
/*
|
2215 |
* We should not do any further processing on a halted queue!
|
2216 |
* This is esp. important for bulk endpoints with pipelining enabled
|
2217 |
* (redirection to a real USB device), where we must cancel all the
|
2218 |
* transfers after this one so that:
|
2219 |
* 1) If they've completed already, they are not processed further
|
2220 |
* causing more stalls, originating from the same failed transfer
|
2221 |
* 2) If still in flight, they are cancelled before the guest does
|
2222 |
* a clear stall, otherwise the guest and device can loose sync!
|
2223 |
*/
|
2224 |
while ((p = QTAILQ_FIRST(&q->packets)) != NULL) { |
2225 |
ehci_free_packet(p); |
2226 |
} |
2227 |
ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); |
2228 |
again = 1;
|
2229 |
} else {
|
2230 |
ehci_set_state(q->ehci, q->async, EST_ADVANCEQUEUE); |
2231 |
again = 1;
|
2232 |
} |
2233 |
return again;
|
2234 |
} |
2235 |
|
2236 |
/*
|
2237 |
* This is the state machine that is common to both async and periodic
|
2238 |
*/
|
2239 |
|
2240 |
static void ehci_advance_state(EHCIState *ehci, int async) |
2241 |
{ |
2242 |
EHCIQueue *q = NULL;
|
2243 |
int again;
|
2244 |
|
2245 |
do {
|
2246 |
switch(ehci_get_state(ehci, async)) {
|
2247 |
case EST_WAITLISTHEAD:
|
2248 |
again = ehci_state_waitlisthead(ehci, async); |
2249 |
break;
|
2250 |
|
2251 |
case EST_FETCHENTRY:
|
2252 |
again = ehci_state_fetchentry(ehci, async); |
2253 |
break;
|
2254 |
|
2255 |
case EST_FETCHQH:
|
2256 |
q = ehci_state_fetchqh(ehci, async); |
2257 |
if (q != NULL) { |
2258 |
assert(q->async == async); |
2259 |
again = 1;
|
2260 |
} else {
|
2261 |
again = 0;
|
2262 |
} |
2263 |
break;
|
2264 |
|
2265 |
case EST_FETCHITD:
|
2266 |
again = ehci_state_fetchitd(ehci, async); |
2267 |
break;
|
2268 |
|
2269 |
case EST_FETCHSITD:
|
2270 |
again = ehci_state_fetchsitd(ehci, async); |
2271 |
break;
|
2272 |
|
2273 |
case EST_ADVANCEQUEUE:
|
2274 |
again = ehci_state_advqueue(q); |
2275 |
break;
|
2276 |
|
2277 |
case EST_FETCHQTD:
|
2278 |
again = ehci_state_fetchqtd(q); |
2279 |
break;
|
2280 |
|
2281 |
case EST_HORIZONTALQH:
|
2282 |
again = ehci_state_horizqh(q); |
2283 |
break;
|
2284 |
|
2285 |
case EST_EXECUTE:
|
2286 |
again = ehci_state_execute(q); |
2287 |
if (async) {
|
2288 |
ehci->async_stepdown = 0;
|
2289 |
} |
2290 |
break;
|
2291 |
|
2292 |
case EST_EXECUTING:
|
2293 |
assert(q != NULL);
|
2294 |
if (async) {
|
2295 |
ehci->async_stepdown = 0;
|
2296 |
} |
2297 |
again = ehci_state_executing(q); |
2298 |
break;
|
2299 |
|
2300 |
case EST_WRITEBACK:
|
2301 |
assert(q != NULL);
|
2302 |
again = ehci_state_writeback(q); |
2303 |
break;
|
2304 |
|
2305 |
default:
|
2306 |
fprintf(stderr, "Bad state!\n");
|
2307 |
again = -1;
|
2308 |
assert(0);
|
2309 |
break;
|
2310 |
} |
2311 |
|
2312 |
if (again < 0) { |
2313 |
fprintf(stderr, "processing error - resetting ehci HC\n");
|
2314 |
ehci_reset(ehci); |
2315 |
again = 0;
|
2316 |
} |
2317 |
} |
2318 |
while (again);
|
2319 |
} |
2320 |
|
2321 |
static void ehci_advance_async_state(EHCIState *ehci) |
2322 |
{ |
2323 |
const int async = 1; |
2324 |
|
2325 |
switch(ehci_get_state(ehci, async)) {
|
2326 |
case EST_INACTIVE:
|
2327 |
if (!ehci_async_enabled(ehci)) {
|
2328 |
break;
|
2329 |
} |
2330 |
ehci_set_state(ehci, async, EST_ACTIVE); |
2331 |
// No break, fall through to ACTIVE
|
2332 |
|
2333 |
case EST_ACTIVE:
|
2334 |
if (!ehci_async_enabled(ehci)) {
|
2335 |
ehci_queues_rip_all(ehci, async); |
2336 |
ehci_set_state(ehci, async, EST_INACTIVE); |
2337 |
break;
|
2338 |
} |
2339 |
|
2340 |
/* make sure guest has acknowledged the doorbell interrupt */
|
2341 |
/* TO-DO: is this really needed? */
|
2342 |
if (ehci->usbsts & USBSTS_IAA) {
|
2343 |
DPRINTF("IAA status bit still set.\n");
|
2344 |
break;
|
2345 |
} |
2346 |
|
2347 |
/* check that address register has been set */
|
2348 |
if (ehci->asynclistaddr == 0) { |
2349 |
break;
|
2350 |
} |
2351 |
|
2352 |
ehci_set_state(ehci, async, EST_WAITLISTHEAD); |
2353 |
ehci_advance_state(ehci, async); |
2354 |
|
2355 |
/* If the doorbell is set, the guest wants to make a change to the
|
2356 |
* schedule. The host controller needs to release cached data.
|
2357 |
* (section 4.8.2)
|
2358 |
*/
|
2359 |
if (ehci->usbcmd & USBCMD_IAAD) {
|
2360 |
/* Remove all unseen qhs from the async qhs queue */
|
2361 |
ehci_queues_rip_unused(ehci, async, 1);
|
2362 |
trace_usb_ehci_doorbell_ack(); |
2363 |
ehci->usbcmd &= ~USBCMD_IAAD; |
2364 |
ehci_raise_irq(ehci, USBSTS_IAA); |
2365 |
} |
2366 |
break;
|
2367 |
|
2368 |
default:
|
2369 |
/* this should only be due to a developer mistake */
|
2370 |
fprintf(stderr, "ehci: Bad asynchronous state %d. "
|
2371 |
"Resetting to active\n", ehci->astate);
|
2372 |
assert(0);
|
2373 |
} |
2374 |
} |
2375 |
|
2376 |
static void ehci_advance_periodic_state(EHCIState *ehci) |
2377 |
{ |
2378 |
uint32_t entry; |
2379 |
uint32_t list; |
2380 |
const int async = 0; |
2381 |
|
2382 |
// 4.6
|
2383 |
|
2384 |
switch(ehci_get_state(ehci, async)) {
|
2385 |
case EST_INACTIVE:
|
2386 |
if (!(ehci->frindex & 7) && ehci_periodic_enabled(ehci)) { |
2387 |
ehci_set_state(ehci, async, EST_ACTIVE); |
2388 |
// No break, fall through to ACTIVE
|
2389 |
} else
|
2390 |
break;
|
2391 |
|
2392 |
case EST_ACTIVE:
|
2393 |
if (!(ehci->frindex & 7) && !ehci_periodic_enabled(ehci)) { |
2394 |
ehci_queues_rip_all(ehci, async); |
2395 |
ehci_set_state(ehci, async, EST_INACTIVE); |
2396 |
break;
|
2397 |
} |
2398 |
|
2399 |
list = ehci->periodiclistbase & 0xfffff000;
|
2400 |
/* check that register has been set */
|
2401 |
if (list == 0) { |
2402 |
break;
|
2403 |
} |
2404 |
list |= ((ehci->frindex & 0x1ff8) >> 1); |
2405 |
|
2406 |
pci_dma_read(&ehci->dev, list, &entry, sizeof entry);
|
2407 |
entry = le32_to_cpu(entry); |
2408 |
|
2409 |
DPRINTF("PERIODIC state adv fr=%d. [%08X] -> %08X\n",
|
2410 |
ehci->frindex / 8, list, entry);
|
2411 |
ehci_set_fetch_addr(ehci, async,entry); |
2412 |
ehci_set_state(ehci, async, EST_FETCHENTRY); |
2413 |
ehci_advance_state(ehci, async); |
2414 |
ehci_queues_rip_unused(ehci, async, 0);
|
2415 |
break;
|
2416 |
|
2417 |
default:
|
2418 |
/* this should only be due to a developer mistake */
|
2419 |
fprintf(stderr, "ehci: Bad periodic state %d. "
|
2420 |
"Resetting to active\n", ehci->pstate);
|
2421 |
assert(0);
|
2422 |
} |
2423 |
} |
2424 |
|
2425 |
static void ehci_update_frindex(EHCIState *ehci, int frames) |
2426 |
{ |
2427 |
int i;
|
2428 |
|
2429 |
if (!ehci_enabled(ehci)) {
|
2430 |
return;
|
2431 |
} |
2432 |
|
2433 |
for (i = 0; i < frames; i++) { |
2434 |
ehci->frindex += 8;
|
2435 |
|
2436 |
if (ehci->frindex == 0x00002000) { |
2437 |
ehci_raise_irq(ehci, USBSTS_FLR); |
2438 |
} |
2439 |
|
2440 |
if (ehci->frindex == 0x00004000) { |
2441 |
ehci_raise_irq(ehci, USBSTS_FLR); |
2442 |
ehci->frindex = 0;
|
2443 |
if (ehci->usbsts_frindex > 0x00004000) { |
2444 |
ehci->usbsts_frindex -= 0x00004000;
|
2445 |
} else {
|
2446 |
ehci->usbsts_frindex = 0;
|
2447 |
} |
2448 |
} |
2449 |
} |
2450 |
} |
2451 |
|
2452 |
static void ehci_frame_timer(void *opaque) |
2453 |
{ |
2454 |
EHCIState *ehci = opaque; |
2455 |
int need_timer = 0; |
2456 |
int64_t expire_time, t_now; |
2457 |
uint64_t ns_elapsed; |
2458 |
int frames, skipped_frames;
|
2459 |
int i;
|
2460 |
|
2461 |
t_now = qemu_get_clock_ns(vm_clock); |
2462 |
ns_elapsed = t_now - ehci->last_run_ns; |
2463 |
frames = ns_elapsed / FRAME_TIMER_NS; |
2464 |
|
2465 |
if (ehci_periodic_enabled(ehci) || ehci->pstate != EST_INACTIVE) {
|
2466 |
need_timer++; |
2467 |
ehci->async_stepdown = 0;
|
2468 |
|
2469 |
if (frames > ehci->maxframes) {
|
2470 |
skipped_frames = frames - ehci->maxframes; |
2471 |
ehci_update_frindex(ehci, skipped_frames); |
2472 |
ehci->last_run_ns += FRAME_TIMER_NS * skipped_frames; |
2473 |
frames -= skipped_frames; |
2474 |
DPRINTF("WARNING - EHCI skipped %d frames\n", skipped_frames);
|
2475 |
} |
2476 |
|
2477 |
for (i = 0; i < frames; i++) { |
2478 |
ehci_update_frindex(ehci, 1);
|
2479 |
ehci_advance_periodic_state(ehci); |
2480 |
ehci->last_run_ns += FRAME_TIMER_NS; |
2481 |
} |
2482 |
} else {
|
2483 |
if (ehci->async_stepdown < ehci->maxframes / 2) { |
2484 |
ehci->async_stepdown++; |
2485 |
} |
2486 |
ehci_update_frindex(ehci, frames); |
2487 |
ehci->last_run_ns += FRAME_TIMER_NS * frames; |
2488 |
} |
2489 |
|
2490 |
/* Async is not inside loop since it executes everything it can once
|
2491 |
* called
|
2492 |
*/
|
2493 |
if (ehci_async_enabled(ehci) || ehci->astate != EST_INACTIVE) {
|
2494 |
need_timer++; |
2495 |
ehci_advance_async_state(ehci); |
2496 |
} |
2497 |
|
2498 |
ehci_commit_irq(ehci); |
2499 |
if (ehci->usbsts_pending) {
|
2500 |
need_timer++; |
2501 |
ehci->async_stepdown = 0;
|
2502 |
} |
2503 |
|
2504 |
if (need_timer) {
|
2505 |
expire_time = t_now + (get_ticks_per_sec() |
2506 |
* (ehci->async_stepdown+1) / FRAME_TIMER_FREQ);
|
2507 |
qemu_mod_timer(ehci->frame_timer, expire_time); |
2508 |
} |
2509 |
} |
2510 |
|
2511 |
static void ehci_async_bh(void *opaque) |
2512 |
{ |
2513 |
EHCIState *ehci = opaque; |
2514 |
ehci_advance_async_state(ehci); |
2515 |
} |
2516 |
|
2517 |
static const MemoryRegionOps ehci_mem_ops = { |
2518 |
.old_mmio = { |
2519 |
.read = { ehci_mem_readb, ehci_mem_readw, ehci_mem_readl }, |
2520 |
.write = { ehci_mem_writeb, ehci_mem_writew, ehci_mem_writel }, |
2521 |
}, |
2522 |
.endianness = DEVICE_LITTLE_ENDIAN, |
2523 |
}; |
2524 |
|
2525 |
static int usb_ehci_initfn(PCIDevice *dev); |
2526 |
|
2527 |
static USBPortOps ehci_port_ops = {
|
2528 |
.attach = ehci_attach, |
2529 |
.detach = ehci_detach, |
2530 |
.child_detach = ehci_child_detach, |
2531 |
.wakeup = ehci_wakeup, |
2532 |
.complete = ehci_async_complete_packet, |
2533 |
}; |
2534 |
|
2535 |
static USBBusOps ehci_bus_ops = {
|
2536 |
.register_companion = ehci_register_companion, |
2537 |
}; |
2538 |
|
2539 |
static int usb_ehci_post_load(void *opaque, int version_id) |
2540 |
{ |
2541 |
EHCIState *s = opaque; |
2542 |
int i;
|
2543 |
|
2544 |
for (i = 0; i < NB_PORTS; i++) { |
2545 |
USBPort *companion = s->companion_ports[i]; |
2546 |
if (companion == NULL) { |
2547 |
continue;
|
2548 |
} |
2549 |
if (s->portsc[i] & PORTSC_POWNER) {
|
2550 |
companion->dev = s->ports[i].dev; |
2551 |
} else {
|
2552 |
companion->dev = NULL;
|
2553 |
} |
2554 |
} |
2555 |
|
2556 |
return 0; |
2557 |
} |
2558 |
|
2559 |
static const VMStateDescription vmstate_ehci = { |
2560 |
.name = "ehci",
|
2561 |
.version_id = 2,
|
2562 |
.minimum_version_id = 1,
|
2563 |
.post_load = usb_ehci_post_load, |
2564 |
.fields = (VMStateField[]) { |
2565 |
VMSTATE_PCI_DEVICE(dev, EHCIState), |
2566 |
/* mmio registers */
|
2567 |
VMSTATE_UINT32(usbcmd, EHCIState), |
2568 |
VMSTATE_UINT32(usbsts, EHCIState), |
2569 |
VMSTATE_UINT32_V(usbsts_pending, EHCIState, 2),
|
2570 |
VMSTATE_UINT32_V(usbsts_frindex, EHCIState, 2),
|
2571 |
VMSTATE_UINT32(usbintr, EHCIState), |
2572 |
VMSTATE_UINT32(frindex, EHCIState), |
2573 |
VMSTATE_UINT32(ctrldssegment, EHCIState), |
2574 |
VMSTATE_UINT32(periodiclistbase, EHCIState), |
2575 |
VMSTATE_UINT32(asynclistaddr, EHCIState), |
2576 |
VMSTATE_UINT32(configflag, EHCIState), |
2577 |
VMSTATE_UINT32(portsc[0], EHCIState),
|
2578 |
VMSTATE_UINT32(portsc[1], EHCIState),
|
2579 |
VMSTATE_UINT32(portsc[2], EHCIState),
|
2580 |
VMSTATE_UINT32(portsc[3], EHCIState),
|
2581 |
VMSTATE_UINT32(portsc[4], EHCIState),
|
2582 |
VMSTATE_UINT32(portsc[5], EHCIState),
|
2583 |
/* frame timer */
|
2584 |
VMSTATE_TIMER(frame_timer, EHCIState), |
2585 |
VMSTATE_UINT64(last_run_ns, EHCIState), |
2586 |
VMSTATE_UINT32(async_stepdown, EHCIState), |
2587 |
/* schedule state */
|
2588 |
VMSTATE_UINT32(astate, EHCIState), |
2589 |
VMSTATE_UINT32(pstate, EHCIState), |
2590 |
VMSTATE_UINT32(a_fetch_addr, EHCIState), |
2591 |
VMSTATE_UINT32(p_fetch_addr, EHCIState), |
2592 |
VMSTATE_END_OF_LIST() |
2593 |
} |
2594 |
}; |
2595 |
|
2596 |
static Property ehci_properties[] = {
|
2597 |
DEFINE_PROP_UINT32("maxframes", EHCIState, maxframes, 128), |
2598 |
DEFINE_PROP_END_OF_LIST(), |
2599 |
}; |
2600 |
|
2601 |
static void ehci_class_init(ObjectClass *klass, void *data) |
2602 |
{ |
2603 |
DeviceClass *dc = DEVICE_CLASS(klass); |
2604 |
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
2605 |
|
2606 |
k->init = usb_ehci_initfn; |
2607 |
k->vendor_id = PCI_VENDOR_ID_INTEL; |
2608 |
k->device_id = PCI_DEVICE_ID_INTEL_82801D; /* ich4 */
|
2609 |
k->revision = 0x10;
|
2610 |
k->class_id = PCI_CLASS_SERIAL_USB; |
2611 |
dc->vmsd = &vmstate_ehci; |
2612 |
dc->props = ehci_properties; |
2613 |
} |
2614 |
|
2615 |
static TypeInfo ehci_info = {
|
2616 |
.name = "usb-ehci",
|
2617 |
.parent = TYPE_PCI_DEVICE, |
2618 |
.instance_size = sizeof(EHCIState),
|
2619 |
.class_init = ehci_class_init, |
2620 |
}; |
2621 |
|
2622 |
static void ich9_ehci_class_init(ObjectClass *klass, void *data) |
2623 |
{ |
2624 |
DeviceClass *dc = DEVICE_CLASS(klass); |
2625 |
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
2626 |
|
2627 |
k->init = usb_ehci_initfn; |
2628 |
k->vendor_id = PCI_VENDOR_ID_INTEL; |
2629 |
k->device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI1; |
2630 |
k->revision = 0x03;
|
2631 |
k->class_id = PCI_CLASS_SERIAL_USB; |
2632 |
dc->vmsd = &vmstate_ehci; |
2633 |
dc->props = ehci_properties; |
2634 |
} |
2635 |
|
2636 |
static TypeInfo ich9_ehci_info = {
|
2637 |
.name = "ich9-usb-ehci1",
|
2638 |
.parent = TYPE_PCI_DEVICE, |
2639 |
.instance_size = sizeof(EHCIState),
|
2640 |
.class_init = ich9_ehci_class_init, |
2641 |
}; |
2642 |
|
2643 |
static int usb_ehci_initfn(PCIDevice *dev) |
2644 |
{ |
2645 |
EHCIState *s = DO_UPCAST(EHCIState, dev, dev); |
2646 |
uint8_t *pci_conf = s->dev.config; |
2647 |
int i;
|
2648 |
|
2649 |
pci_set_byte(&pci_conf[PCI_CLASS_PROG], 0x20);
|
2650 |
|
2651 |
/* capabilities pointer */
|
2652 |
pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x00);
|
2653 |
//pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x50);
|
2654 |
|
2655 |
pci_set_byte(&pci_conf[PCI_INTERRUPT_PIN], 4); /* interrupt pin D */ |
2656 |
pci_set_byte(&pci_conf[PCI_MIN_GNT], 0);
|
2657 |
pci_set_byte(&pci_conf[PCI_MAX_LAT], 0);
|
2658 |
|
2659 |
// pci_conf[0x50] = 0x01; // power management caps
|
2660 |
|
2661 |
pci_set_byte(&pci_conf[USB_SBRN], USB_RELEASE_2); // release number (2.1.4)
|
2662 |
pci_set_byte(&pci_conf[0x61], 0x20); // frame length adjustment (2.1.5) |
2663 |
pci_set_word(&pci_conf[0x62], 0x00); // port wake up capability (2.1.6) |
2664 |
|
2665 |
pci_conf[0x64] = 0x00; |
2666 |
pci_conf[0x65] = 0x00; |
2667 |
pci_conf[0x66] = 0x00; |
2668 |
pci_conf[0x67] = 0x00; |
2669 |
pci_conf[0x68] = 0x01; |
2670 |
pci_conf[0x69] = 0x00; |
2671 |
pci_conf[0x6a] = 0x00; |
2672 |
pci_conf[0x6b] = 0x00; // USBLEGSUP |
2673 |
pci_conf[0x6c] = 0x00; |
2674 |
pci_conf[0x6d] = 0x00; |
2675 |
pci_conf[0x6e] = 0x00; |
2676 |
pci_conf[0x6f] = 0xc0; // USBLEFCTLSTS |
2677 |
|
2678 |
// 2.2 host controller interface version
|
2679 |
s->mmio[0x00] = (uint8_t) OPREGBASE;
|
2680 |
s->mmio[0x01] = 0x00; |
2681 |
s->mmio[0x02] = 0x00; |
2682 |
s->mmio[0x03] = 0x01; // HC version |
2683 |
s->mmio[0x04] = NB_PORTS; // Number of downstream ports |
2684 |
s->mmio[0x05] = 0x00; // No companion ports at present |
2685 |
s->mmio[0x06] = 0x00; |
2686 |
s->mmio[0x07] = 0x00; |
2687 |
s->mmio[0x08] = 0x80; // We can cache whole frame, not 64-bit capable |
2688 |
s->mmio[0x09] = 0x68; // EECP |
2689 |
s->mmio[0x0a] = 0x00; |
2690 |
s->mmio[0x0b] = 0x00; |
2691 |
|
2692 |
s->irq = s->dev.irq[3];
|
2693 |
|
2694 |
usb_bus_new(&s->bus, &ehci_bus_ops, &s->dev.qdev); |
2695 |
for(i = 0; i < NB_PORTS; i++) { |
2696 |
usb_register_port(&s->bus, &s->ports[i], s, i, &ehci_port_ops, |
2697 |
USB_SPEED_MASK_HIGH); |
2698 |
s->ports[i].dev = 0;
|
2699 |
} |
2700 |
|
2701 |
s->frame_timer = qemu_new_timer_ns(vm_clock, ehci_frame_timer, s); |
2702 |
s->async_bh = qemu_bh_new(ehci_async_bh, s); |
2703 |
QTAILQ_INIT(&s->aqueues); |
2704 |
QTAILQ_INIT(&s->pqueues); |
2705 |
usb_packet_init(&s->ipacket); |
2706 |
|
2707 |
qemu_register_reset(ehci_reset, s); |
2708 |
|
2709 |
memory_region_init_io(&s->mem, &ehci_mem_ops, s, "ehci", MMIO_SIZE);
|
2710 |
pci_register_bar(&s->dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->mem);
|
2711 |
|
2712 |
return 0; |
2713 |
} |
2714 |
|
2715 |
static void ehci_register_types(void) |
2716 |
{ |
2717 |
type_register_static(&ehci_info); |
2718 |
type_register_static(&ich9_ehci_info); |
2719 |
} |
2720 |
|
2721 |
type_init(ehci_register_types) |
2722 |
|
2723 |
/*
|
2724 |
* vim: expandtab ts=4
|
2725 |
*/
|