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[Qemu-devel] [PATCH] EHCI emulation module for review
|
From: |
Mark Burkley |
|
Subject: |
[Qemu-devel] [PATCH] EHCI emulation module for review |
|
Date: |
Fri, 31 Oct 2008 00:05:39 +0000 |
Hi all,
Thank for your suggestions to improve the EHCI emulation patch. As
this is a new feature it isn't really possible to break it into
smaller patches, but I have as suggested diffed and tested against
trunk, updated the coding style and dropped outlook as a mailer. I
just tested with a host usb msd device under FC8 and it works fine
with a WinXP target.
This patch does include the mod to usb-linux.c to return STALL instead
of NAK for EPIPE errors as discussed earlier.
Any other comments, suggestions and corrections welcome.
Mark
Index: Makefile.target
===================================================================
--- Makefile.target (revision 5571)
+++ Makefile.target (working copy)
@@ -650,7 +650,7 @@
OBJS+= ide.o pckbd.o ps2.o vga.o $(SOUND_HW) dma.o
OBJS+= fdc.o mc146818rtc.o serial.o i8259.o i8254.o pcspk.o pc.o
OBJS+= cirrus_vga.o apic.o parallel.o acpi.o piix_pci.o
-OBJS+= usb-uhci.o vmmouse.o vmport.o vmware_vga.o
+OBJS+= usb-uhci.o usb-ehci.o vmmouse.o vmport.o vmware_vga.o
CPPFLAGS += -DHAS_AUDIO -DHAS_AUDIO_CHOICE
endif
ifeq ($(TARGET_BASE_ARCH), ppc)
Index: usb-linux.c
===================================================================
--- usb-linux.c (revision 5571)
+++ usb-linux.c (working copy)
@@ -68,7 +68,7 @@
static int usb_host_find_device(int *pbus_num, int *paddr,
char *product_name, int
product_name_size,
const char *devname);
-//#define DEBUG
+// #define DEBUG
#ifdef DEBUG
#define dprintf printf
@@ -276,7 +276,9 @@
case -EPIPE:
set_halt(s, p->devep);
- /* fall through */
+ p->len = USB_RET_STALL;
+ break;
+
default:
p->len = USB_RET_NAK;
break;
Index: monitor.c
===================================================================
--- monitor.c (revision 5571)
+++ monitor.c (working copy)
@@ -1499,6 +1499,8 @@
"", "show guest USB devices", },
{ "usbhost", "", usb_host_info,
"", "show host USB devices", },
+ // { "usbehci", "", usb_ehci_info,
+ // "", "show ehci status", },
{ "profile", "", do_info_profile,
"", "show profiling information", },
{ "capture", "", do_info_capture,
Index: hw/usb-ehci.c
===================================================================
--- hw/usb-ehci.c (revision 0)
+++ hw/usb-ehci.c (revision 0)
@@ -0,0 +1,2041 @@
+/*
+ * QEMU USB EHCI Emulation
+ *
+ * Copyright(c) 2008 Emutex Ltd. (address@hidden)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or(at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * TODO:
+ * o Downstream port handoff
+ */
+
+#include "hw.h"
+#include "qemu-timer.h"
+#include "usb.h"
+#include "pci.h"
+
+// #define DEBUG(x) timed_printf x
+// #define DEBUG(x) printf x
+#define DEBUG(x)
+// #define TDEBUG
+// #define DEBUG_PACKET
+
+#define ASSERT(x) { if (!(x)) { printf("Assertion failed in usb-echi.c line
%d\n", __LINE__); exit(1); } }
+
+#define MMIO_SIZE 0x1000
+
+#define CAPREGBASE 0x0000 // Capability Registers Base Address
+
+#define CAPLENGTH CAPREGBASE + 0x0000
+#define HCIVERSION CAPREGBASE + 0x0002
+#define HCSPARAMS CAPREGBASE + 0x0004
+#define HCCPARAMS CAPREGBASE + 0x0008
+#define EECP HCCPARAMS + 1
+#define HCSPPORTROUTE1 CAPREGBASE + 0x000c
+#define HCSPPORTROUTE2 CAPREGBASE + 0x0010
+
+#define OPREGBASE 0x0020 // Operational Registers Base Address
+
+#define USBCMD OPREGBASE + 0x0000
+#define USBCMD_RUNSTOP (1 << 0) // run / Stop
+#define USBCMD_HCRESET (1 << 1) // HC Reset
+#define USBCMD_FLS (3 << 2) // Frame List Size
+#define USBCMD_FLS_SH 2 // Frame List Size Shift
+#define USBCMD_PSE (1 << 4) // Periodic Schedule Enable
+#define USBCMD_ASE (1 << 5) // Asynch Schedule Enable
+#define USBCMD_IAAD (1 << 6) // Int Asynch Advance Doorbell
+#define USBCMD_LHCR (1 << 7) // Light Host Controller Reset
+#define USBCMD_ASPMC (3 << 8) // Async Sched Park Mode Count
+#define USBCMD_ASPME (1 << 11) // Async Sched Park Mode Enable
+#define USBCMD_ITC (0x7f << 16) // Int Threshold Control
+#define USBCMD_ITC_SH 16 // Int Threshold Control Shift
+
+#define USBSTS OPREGBASE + 0x0004
+#define USBSTS_RO_MASK 0x0000003f
+#define USBSTS_INT (1 << 0) // USB Interrupt
+#define USBSTS_ERRINT (1 << 1) // Error Interrupt
+#define USBSTS_PCD (1 << 2) // Port Change Detect
+#define USBSTS_FLR (1 << 3) // Frame List Rollover
+#define USBSTS_HSE (1 << 4) // Host System Error
+#define USBSTS_IAA (1 << 5) // Interrupt Async Advance
+#define USBSTS_HALT (1 << 12) // HC Halted
+#define USBSTS_REC (1 << 13) // Reclamation
+#define USBSTS_PSS (1 << 14) // Periodic Schedule Status
+#define USBSTS_ASS (1 << 15) // Asynchronous Schedule Status
+
+/*
+ * Interrupt enable bits correspond to the interrupt active bits in USBSTS
+ * so no need to redefine here.
+ */
+#define USBINTR OPREGBASE + 0x0008
+#define USBINTR_MASK 0x0000003f
+
+#define FRINDEX OPREGBASE + 0x000c
+#define CTRLDSSEGMENT OPREGBASE + 0x0010
+#define PERIODICLISTBASE OPREGBASE + 0x0014
+#define ASYNCLISTADDR OPREGBASE + 0x0018
+#define ASYNCLISTADDR_MASK 0xffffffe0
+
+#define CONFIGFLAG OPREGBASE + 0x0040
+
+#define PORTSC (OPREGBASE + 0x0044)
+#define PORTSC_BEGIN PORTSC
+#define PORTSC_END (PORTSC + 4 * NB_PORTS)
+/*
+ * Bits that are reserverd or are read-only are masked out of values
+ * written to us by software
+ */
+#define PORTSC_RO_MASK 0x007021c5
+#define PORTSC_RWC_MASK 0x0000002a
+#define PORTSC_WKOC_E (1 << 22) // Wake on Over Current Enable
+#define PORTSC_WKDS_E (1 << 21) // Wake on Disconnect Enable
+#define PORTSC_WKCN_E (1 << 20) // Wake on Connect Enable
+#define PORTSC_PTC (15 << 16) // Port Test Control
+#define PORTSC_PTC_SH 16 // Port Test Control shift
+#define PORTSC_PIC (3 << 14) // Port Indicator Control
+#define PORTSC_PIC_SH 14 // Port Indicator Control Shift
+#define PORTSC_POWNER (1 << 13) // Port Owner
+#define PORTSC_PPOWER (1 << 12) // Port Power
+#define PORTSC_LINESTAT (3 << 10) // Port Line Status
+#define PORTSC_LINESTAT_SH 10 // Port Line Status Shift
+#define PORTSC_PRESET (1 << 8) // Port Reset
+#define PORTSC_SUSPEND (1 << 7) // Port Suspend
+#define PORTSC_FPRES (1 << 6) // Force Port Resume
+#define PORTSC_OCC (1 << 5) // Over Current Change
+#define PORTSC_OCA (1 << 4) // Over Current Active
+#define PORTSC_PEDC (1 << 3) // Port Enable/Disable Change
+#define PORTSC_PED (1 << 2) // Port Enable/Disable
+#define PORTSC_CSC (1 << 1) // Connect Status Change
+#define PORTSC_CONNECT (1 << 0) // Current Connect Status
+
+#define EHCI_NOMICROFRAMES
+
+#ifdef EHCI_NOMICROFRAMES
+#define FRAME_TIMER_FREQ 2000
+#else
+#define FRAME_TIMER_FREQ 8000
+#endif
+
+#define NB_MAXINTRATE 8 // Max rate at which controller issues
ints
+#define NB_PORTS 4 // Number of downstream ports
+#define BUFF_SIZE 20480 // Max bytes to transfer per transaction
+#define MAX_ITERATIONS 1000 // Max number of states before we
abort
+#define MAX_QH 1000 // Max allowable queue heads in a
chain
+
+/* Internal periodic / asynchronous schedule state machine states
+ */
+typedef enum {
+ EST_INACTIVE = 1000,
+ EST_ACTIVE,
+ EST_EXECUTING,
+ EST_SLEEPING,
+ /* The following states are internal to the state machine function
+ */
+ EST_WAITLISTHEAD,
+ EST_DORELOAD,
+ EST_WAITSTARTEVENT,
+ EST_FETCHENTRY,
+ EST_FETCHQH,
+ EST_FETCHITD,
+ EST_ADVANCEQUEUE,
+ EST_FETCHQTD,
+ EST_EXECUTE,
+ EST_WRITEBACK,
+ EST_HORIZONTALQH
+} EHCI_STATES;
+
+/* EHCI spec version 1.0 Section 3.3
+ */
+typedef struct EHCIitd {
+ uint32_t next;
+#define NLPTR_GET(x) ((x) & 0xffffffe0)
+#define NLPTR_TYPE_GET(x) (((x) >> 1) & 3)
+#define NLPTR_TYPE_ITD 0
+#define NLPTR_TYPE_QH 1
+#define NLPTR_TYPE_STITD 2
+#define NLPTR_TYPE_FSTN 3
+#define NLPTR_TBIT(x) ((x) & 1)
+
+ uint32_t transact[8];
+#define ITD_XACT_ACTIVE (1 << 31)
+#define ITD_XACT_DBERROR (1 << 30)
+#define ITD_XACT_BABBLE (1 << 29)
+#define ITD_XACT_XACTERR (1 << 28)
+#define ITD_XACT_LENGTH_MASK 0x0fff0000
+#define ITD_XACT_LENGTH_SH 16
+#define ITD_XACT_IOC (1 << 15)
+#define ITD_XACT_PGSEL_MASK 0x00007000
+#define ITD_XACT_PGSEL_SH 12
+#define ITD_XACT_OFFSET_MASK 0x00000fff
+
+ uint32_t bufptr[7];
+#define ITD_BUFPTR_MASK 0xfffff000
+#define ITD_BUFPTR_SH 12
+#define ITD_BUFPTR_EP_MASK 0x00000f00
+#define ITD_BUFPTR_EP_SH 8
+#define ITD_BUFPTR_DEVADDR_MASK 0x0000007f
+#define ITD_BUFPTR_DIRECTION (1 << 11)
+#define ITD_BUFPTR_MAXPKT_MASK 0x000007ff
+#define ITD_BUFPTR_MULT_MASK 0x00000003
+} EHCIitd;
+
+/* EHCI spec version 1.0 Section 3.4
+ */
+typedef struct EHCIsitd {
+ uint32_t next; // Standard next link pointer
+ uint32_t epchar;
+#define SITD_EPCHAR_IO (1 << 31)
+#define SITD_EPCHAR_PORTNUM_MASK 0x7f000000
+#define SITD_EPCHAR_PORTNUM_SH 24
+#define SITD_EPCHAR_HUBADD_MASK 0x007f0000
+#define SITD_EPCHAR_HUBADDR_SH 16
+#define SITD_EPCHAR_EPNUM_MASK 0x00000f00
+#define SITD_EPCHAR_EPNUM_SH 8
+#define SITD_EPCHAR_DEVADDR_MASK 0x0000007f
+
+ uint32_t uframe;
+#define SITD_UFRAME_CMASK_MASK 0x0000ff00
+#define SITD_UFRAME_CMASK_SH 8
+#define SITD_UFRAME_SMASK_MASK 0x000000ff
+
+ uint32_t results;
+#define SITD_RESULTS_IOC (1 << 31)
+#define SITD_RESULTS_PGSEL (1 << 30)
+#define SITD_RESULTS_TBYTES_MASK 0x03ff0000
+#define SITD_RESULTS_TYBYTES_SH 16
+#define SITD_RESULTS_CPROGMASK_MASK 0x0000ff00
+#define SITD_RESULTS_CPROGMASK_SH 8
+#define SITD_RESULTS_ACTIVE (1 << 7)
+#define SITD_RESULTS_ERR (1 << 6)
+#define SITD_RESULTS_DBERR (1 << 5)
+#define SITD_RESULTS_BABBLE (1 << 4)
+#define SITD_RESULTS_XACTERR (1 << 3)
+#define SITD_RESULTS_MISSEDUF (1 << 2)
+#define SITD_RESULTS_SPLITXSTATE (1 << 1)
+
+ uint32_t bufptr[2];
+#define BUFPTR_MASK 0xfffff000
+#define BUFPTR_CURROFF_MASK 0x00000fff
+#define BUFPTR_TPOS_MASK 0x00000018
+#define BUFPTR_TPOS_SH 3
+#define BUFPTR_TCNT_MASK 0x00000007
+
+ uint32_t backptr; // Standard next link pointer
+} EHCIsitd;
+
+/* EHCI spec version 1.0 Section 3.5
+ */
+typedef struct EHCIqtd {
+ uint32_t next; // Standard next link pointer
+ uint32_t altnext; // Standard next link pointer
+ uint32_t token;
+#define QTD_TOKEN_DTOGGLE (1 << 31)
+#define QTD_TOKEN_TBYTES_MASK 0x7fff0000
+#define QTD_TOKEN_TBYTES_SH 16
+#define QTD_TOKEN_IOC (1 << 15)
+#define QTD_TOKEN_CPAGE_MASK 0x00007000
+#define QTD_TOKEN_CPAGE_SH 12
+#define QTD_TOKEN_CERR_MASK 0x00000c00
+#define QTD_TOKEN_CERR_SH 10
+#define QTD_TOKEN_PID_MASK 0x00000300
+#define QTD_TOKEN_PID_SH 8
+#define QTD_TOKEN_ACTIVE (1 << 7)
+#define QTD_TOKEN_HALT (1 << 6)
+#define QTD_TOKEN_DBERR (1 << 5)
+#define QTD_TOKEN_BABBLE (1 << 4)
+#define QTD_TOKEN_XACTERR (1 << 3)
+#define QTD_TOKEN_MISSEDUF (1 << 2)
+#define QTD_TOKEN_SPLITXSTATE (1 << 1)
+#define QTD_TOKEN_PING (1 << 0)
+
+ uint32_t bufptr[5]; // Standard buffer pointer
+} EHCIqtd;
+
+/* EHCI spec version 1.0 Section 3.6
+ */
+typedef struct EHCIqh {
+ uint32_t next; // Standard next link pointer
+
+ uint32_t epchar;
+#define QH_EPCHAR_RL_MASK 0xf0000000
+#define QH_EPCHAR_RL_SH 28
+#define QH_EPCHAR_C (1 << 27)
+#define QH_EPCHAR_MPLEN_MASK 0x07FF0000
+#define QH_EPCHAR_MPLEN_SH 16
+#define QH_EPCHAR_H (1 << 15)
+#define QH_EPCHAR_DTC (1 << 14)
+#define QH_EPCHAR_EPS_MASK 0x00003000
+#define QH_EPCHAR_EPS_SH 12
+#define QH_EPCHAR_EP_MASK 0x00000f00
+#define QH_EPCHAR_EP_SH 8
+#define QH_EPCHAR_I (1 << 7)
+#define QH_EPCHAR_DEVADDR_MASK 0x0000007f
+
+ uint32_t epcap;
+#define QH_EPCAP_MULT_MASK 0xc0000000
+#define QH_EPCAP_MULT_SH 30
+#define QH_EPCAP_PORTNUM_MASK 0x3f800000
+#define QH_EPCAP_PORTNUM_SH 23
+#define QH_EPCAP_HUBADDR_MASK 0x007f0000
+#define QH_EPCAP_HUBADDR_SH 16
+#define QH_EPCAP_CMASK_MASK 0x0000ff00
+#define QH_EPCAP_CMASK_SH 8
+#define QH_EPCAP_SMASK_MASK 0x000000ff
+
+ uint32_t current; // Standard next link pointer
+ uint32_t qtdnext; // Standard next link pointer
+ uint32_t altnext;
+#define QH_ALTNEXT_NAKCNT_MASK 0x0000001e
+#define QH_ALTNEXT_NAKCNT_SH 1
+
+ uint32_t token; // Same as QTD token
+ uint32_t bufptr[5]; // Standard buffer pointer
+#define BUFPTR_CPROGMASK_MASK 0x000000ff
+#define BUFPTR_FRAMETAG_MASK 0x0000001f
+#define BUFPTR_SBYTES_MASK 0x00000fe0
+#define BUFPTR_SBYTES_SH 5
+} EHCIqh;
+
+/* EHCI spec version 1.0 Section 3.7
+ */
+typedef struct EHCIfstn {
+ uint32_t next; // Standard next link pointer
+ uint32_t backptr; // Standard next link pointer
+} EHCIfstn;
+
+typedef struct {
+ PCIDevice dev;
+ qemu_irq irq;
+ target_phys_addr_t mem_base;
+ int mem;
+ int num_ports;
+ /*
+ * EHCI spec version 1.0 Section 2.3
+ * Host Controller Operational Registers
+ */
+ union {
+ uint8_t mmio[MMIO_SIZE];
+ struct {
+ uint8_t cap[OPREGBASE];
+ uint32_t usbcmd;
+ uint32_t usbsts;
+ uint32_t usbintr;
+ uint32_t frindex;
+ uint32_t ctrldssegment;
+ uint32_t periodiclistbase;
+ uint32_t asynclistaddr;
+ uint32_t notused[9];
+ uint32_t configflag;
+ uint32_t portsc[NB_PORTS];
+ };
+ };
+ /*
+ * Internal states, shadow registers, etc
+ */
+ uint32_t sofv;
+ QEMUTimer *frame_timer;
+ int attach_poll_counter;
+ int astate; // Current state in asynchronous
schedule
+ int pstate; // Current state in periodic schedule
+ USBPort ports[NB_PORTS];
+ unsigned char buffer[BUFF_SIZE];
+ EHCIqh qh;
+ EHCIqtd qtd;
+ USBPacket usb_packet;
+ int async_port_in_progress;
+ int async_complete;
+ uint32_t qhaddr;
+ uint32_t itdaddr;
+ uint32_t qtdaddr;
+ uint32_t tbytes;
+ int pid;
+ int exec_status;
+ int isoch_pause;
+ uint32_t last_run_usec;
+ uint32_t frame_end_usec;
+} EHCIState;
+
+static inline uint32_t get_field(uint32_t data, uint32_t mask, int shift)
+{
+ return((data & mask) >> shift);
+}
+
+static inline void set_field(uint32_t *data, uint32_t val,
+ uint32_t mask, int shift)
+{
+ *data &= ~mask;
+ *data |=(val << shift);
+}
+
+static void dump_ptr(char *s, uint32_t ptr, int has_type)
+{
+ int t = NLPTR_TYPE_GET(ptr);
+
+ printf("%s%08X", s, NLPTR_GET(ptr));
+
+ if (has_type) {
+ printf("(PTR type is %s)",
+ t == NLPTR_TYPE_ITD ? "ITD" :
+ (t == NLPTR_TYPE_QH ? "QH" :
+ (t == NLPTR_TYPE_STITD ? "STITD" :
+ (t == NLPTR_TYPE_FSTN ? "FSTN" : "****"))));
+ }
+
+ printf("%s\n", NLPTR_TBIT(ptr) ? " TBIT set" : "");
+}
+
+static void dump_qtd(EHCIqtd *qtd, uint32_t qtdaddr)
+{
+ int pid;
+
+ pid =(qtd->token & QTD_TOKEN_PID_MASK) >> QTD_TOKEN_PID_SH;
+
+ printf(" QTD analysis %08X\n"
+ " === ======== ========\n", qtdaddr);
+
+ printf(" NakCnt: %d\n",
+ (qtd->altnext & QH_ALTNEXT_NAKCNT_MASK) >> QH_ALTNEXT_NAKCNT_SH);
+ dump_ptr(" Next: ", qtd->next, 0);
+ dump_ptr(" Alternate: ", qtd->altnext, 0);
+ printf(" Data Toggle: %s ",
+ qtd->token & QTD_TOKEN_DTOGGLE ? "Yes " : "No ");
+ printf(" Total Bytes: %d\n",
+ (qtd->token & QTD_TOKEN_TBYTES_MASK) >> QTD_TOKEN_TBYTES_SH);
+ printf(" IOC: %s ",
+ qtd->token & QTD_TOKEN_IOC ? "Yes " : "No ");
+ printf(" C_Page: %d\n",
+ (qtd->token & QTD_TOKEN_CPAGE_MASK) >> QTD_TOKEN_CPAGE_SH);
+ printf(" CErr: %-4d ",
+ (qtd->token & QTD_TOKEN_CERR_MASK) >> QTD_TOKEN_CERR_SH);
+ printf(" PID code: %s\n",
+ pid == 0 ? "OUT" :
+ (pid == 1 ? "IN" :
+ (pid == 2 ? "SETUP" : "****")));
+ printf(" Flags: %s%s%s%s%s%s%s%s\n",
+ qtd->token & QTD_TOKEN_ACTIVE ? "ACTIVE " : "",
+ qtd->token & QTD_TOKEN_HALT ? "HALT " : "",
+ qtd->token & QTD_TOKEN_DBERR ? "DBERR " : "",
+ qtd->token & QTD_TOKEN_BABBLE ? "BABBLE " : "",
+ qtd->token & QTD_TOKEN_XACTERR ? "XACTERR " : "",
+ qtd->token & QTD_TOKEN_MISSEDUF ? "MISSEDUF " : "",
+ qtd->token & QTD_TOKEN_SPLITXSTATE ? "SPLITXSTATE " : "",
+ qtd->token & QTD_TOKEN_PING ? "PING " : "");
+ printf(" Current Offset %d\n",
+ qtd->bufptr[0] & BUFPTR_CURROFF_MASK);
+ printf(" === ======== ========\n");
+}
+
+static void dump_qh(EHCIqh *qh, uint32_t qhaddr)
+{
+ int speed =(qh->epchar & QH_EPCHAR_EPS_MASK) >> QH_EPCHAR_EPS_SH;
+
+ printf("QH analysis %08X\n"
+ "== ======== ========\n", qhaddr);
+
+ dump_ptr("Horizontal: ", qh->next, 1);
+ printf("Nak Count Reload: %d\n",
+ (qh->epchar & QH_EPCHAR_RL_MASK) >> QH_EPCHAR_RL_SH);
+ printf("Max Pkt Len: %d\n",
+ (qh->epchar & QH_EPCHAR_MPLEN_MASK) >> QH_EPCHAR_MPLEN_SH);
+ printf("Control Endpoint: %s ",
+ (qh->epchar & QH_EPCHAR_C) ? "Yes " : "No ");
+ printf("H-bit: %s\n",
+ (qh->epchar & QH_EPCHAR_H) ? "Yes " : "No ");
+ printf("DTC: %s ",
+ (qh->epchar & QH_EPCHAR_DTC) ? "Yes " : "No ");
+ printf("EndPoint Speed: %s\n",
+ speed == 0 ? "Full" :
+ (speed == 1 ? "Low " :
+ (speed == 2 ? "High" : "****")));
+ printf("EndPoint: %-4d ",
+ (qh->epchar & QH_EPCHAR_EP_MASK) >> QH_EPCHAR_EP_SH);
+ printf("Inactive on next: %s\n",
+ (qh->epchar & QH_EPCHAR_I) ? "Yes" : "No");
+ printf("DevAddr: %-4d ",
+ qh->epchar & QH_EPCHAR_DEVADDR_MASK);
+ printf("Mult: %-4d\n",
+ (qh->epcap & QH_EPCAP_MULT_MASK) >> QH_EPCAP_MULT_SH);
+ printf("PortNum: %-4d ",
+ (qh->epcap & QH_EPCAP_PORTNUM_MASK) >> QH_EPCAP_PORTNUM_SH);
+ printf("HubAddr: %d\n",
+ (qh->epcap & QH_EPCAP_HUBADDR_MASK) >> QH_EPCAP_HUBADDR_SH);
+ printf("C-mask: %-4d ",
+ (qh->epcap & QH_EPCAP_CMASK_MASK) >> QH_EPCAP_CMASK_SH);
+ printf("S-mask: %d\n",
+ qh->epcap & QH_EPCAP_SMASK_MASK);
+ dump_ptr("Current: ", qh->current, 0);
+
+ dump_qtd((EHCIqtd *)&qh->qtdnext, qhaddr + 16);
+
+ printf("C-prog mask: %d\n",
+ qh->bufptr[1] & BUFPTR_CPROGMASK_MASK);
+ printf("S-bytes: %d\n",
+ qh->bufptr[2] & BUFPTR_FRAMETAG_MASK);
+ printf("FrameTag: %d\n",
+ (qh->bufptr[2] & BUFPTR_SBYTES_MASK) >> BUFPTR_SBYTES_SH);
+ printf("== ======== ========\n");
+}
+
+#ifdef DEBUG_PACKET
+
+static void dump_itd(EHCIitd *itd, uint32_t addr)
+{
+ int i;
+
+ printf("ITD analysis %08X\n"
+ "=== ======== ========\n", addr);
+
+ dump_ptr("Horizontal: ", itd->next, 1);
+
+ for(i = 0; i < 8; i++) {
+ printf("Trans Desc %d, len %5d, off %03X, page sel %d, ioc:%s ",
+ i,
+ get_field(itd->transact[i], ITD_XACT_LENGTH_MASK,
+ ITD_XACT_LENGTH_SH),
+ get_field(itd->transact[i], ITD_XACT_OFFSET_MASK, 0),
+ get_field(itd->transact[i], ITD_XACT_PGSEL_MASK,
+ ITD_XACT_PGSEL_SH),
+ itd->transact[i] & ITD_XACT_IOC ? "Yes" : "No ");
+
+ if (itd->transact[i] & ITD_XACT_ACTIVE)
+ printf("ACTIVE ");
+
+ if (itd->transact[i] & ITD_XACT_DBERROR)
+ printf("DATAERR ");
+
+ if (itd->transact[i] & ITD_XACT_BABBLE)
+ printf("BABBLE ");
+
+ if (itd->transact[i] & ITD_XACT_XACTERR)
+ printf("XACTERR ");
+
+ printf("\n");
+ }
+
+ printf("Device: %d\n",
+ get_field(itd->bufptr[0], ITD_BUFPTR_DEVADDR_MASK, 0));
+
+ printf("Endpoint: %d\n",
+ get_field(itd->bufptr[0], ITD_BUFPTR_EP_MASK, ITD_BUFPTR_EP_SH));
+
+ printf("Direction: %s\n",
+ itd->bufptr[1] & ITD_BUFPTR_DIRECTION ? "IN" : "OUT");
+
+ printf("Max Packet: %d\n",
+ get_field(itd->bufptr[1], ITD_BUFPTR_MAXPKT_MASK, 0));
+
+ printf("Mult: %d\n",
+ get_field(itd->bufptr[2], ITD_BUFPTR_MULT_MASK, 0));
+
+ for(i = 0; i < 7; i++)
+ printf("Buf Ptr %d: %05X\n", i, itd->bufptr[i] >> 12);
+}
+
+#endif
+
+int timed_printf(char *fmt, ...)
+{
+ int msec, usec;
+ static int usec_last;
+ va_list ap;
+
+ usec = qemu_get_clock(vm_clock) / 1000;
+
+ msec = usec - usec_last;
+ usec_last = usec;
+ usec = msec;
+
+ msec /= 1000;
+ msec %= 1000;
+
+ usec %= 1000;
+
+ va_start(ap, fmt);
+ printf("%03d.%03d ", msec, usec);
+ vprintf(fmt, ap);
+ va_end(ap);
+
+ return 0;
+}
+
+static void inline ehci_set_interrupt(EHCIState *ehci, int intr)
+{
+ int level = 0;
+
+ // TODO honour interrupt threshold requests
+
+ ehci->usbsts |= intr;
+
+ if ((ehci->usbsts & USBINTR_MASK) & ehci->usbintr)
+ level = 1;
+
+#ifdef TDEBUG
+ DEBUG(("ehci: setting interrupt level %d(st/en)=(%02X/%02X)\n", level,
+ ehci->usbsts & USBINTR_MASK, ehci->usbintr));
+#endif
+ qemu_set_irq(ehci->irq, level);
+}
+
+/* Attach or detach a device on root hub */
+
+static void ehci_attach(USBPort *port, USBDevice *dev)
+{
+ EHCIState *s = port->opaque;
+ uint32_t *portsc = &s->portsc[port->index];
+
+ if (dev) {
+ if (port->dev) {
+ usb_attach(port, NULL);
+ }
+
+ *portsc |= PORTSC_CONNECT;
+
+ usb_send_msg(dev, USB_MSG_ATTACH);
+ port->dev = dev;
+ } else {
+ *portsc &= ~PORTSC_CONNECT;
+
+ if (port->dev) {
+ dev = port->dev;
+ usb_send_msg(dev, USB_MSG_DETACH);
+ }
+
+ port->dev = NULL;
+ }
+
+ *portsc |= PORTSC_CSC;
+
+ /*
+ * If a high speed device is attached then we own this port(indicated
+ * by zero in the PORTSC_POWNER bit field) so set the status bit
+ * and set an interrupt if enabled.
+ */
+ if ( !(*portsc & PORTSC_POWNER)) {
+ ehci_set_interrupt(s, USBSTS_PCD);
+ }
+}
+
+static void ehci_reset(EHCIState *s)
+{
+ uint8_t *pci_conf;
+ int i;
+
+ pci_conf = s->dev.config;
+
+ memset(&s->mmio[OPREGBASE], 0x00, MMIO_SIZE - OPREGBASE);
+
+ s->usbcmd = NB_MAXINTRATE << USBCMD_ITC_SH;
+ s->usbsts = USBSTS_HALT;
+
+ s->astate = EST_INACTIVE;
+ s->pstate = EST_INACTIVE;
+ s->async_port_in_progress = -1;
+ s->async_complete = 0;
+ s->isoch_pause = -1;
+ s->attach_poll_counter = 0;
+
+ for(i = 0; i < NB_PORTS; i++) {
+ s->portsc[i] = PORTSC_POWNER | PORTSC_PPOWER;
+
+ if (s->ports[i].dev)
+ ehci_attach(&s->ports[i], s->ports[i].dev);
+ }
+}
+
+static uint32_t ehci_mem_readb(void *ptr, target_phys_addr_t addr)
+{
+ EHCIState *s = ptr;
+ uint32_t val;
+
+ addr -= s->mem_base;
+ val = s->mmio[addr];
+
+ DEBUG(("mem_readb : addr=0x%08X, val=%02X\n",(int)addr,(int)val));
+
+ return val;
+}
+
+static uint32_t ehci_mem_readw(void *ptr, target_phys_addr_t addr)
+{
+ EHCIState *s = ptr;
+ uint32_t val;
+
+ addr -= s->mem_base;
+ val = s->mmio[addr] |(s->mmio[addr+1] << 8);
+
+ DEBUG(("mem_readw : addr=0x%08X, val=0x%04X\n",(int)addr,(int)val));
+
+ return val;
+}
+
+static uint32_t ehci_mem_readl(void *ptr, target_phys_addr_t addr)
+{
+ EHCIState *s = ptr;
+ uint32_t val;
+
+ addr -= s->mem_base;
+
+ val = s->mmio[addr] |(s->mmio[addr+1] << 8) |
+ (s->mmio[addr+2] << 16) |(s->mmio[addr+3] << 24);
+
+ DEBUG(("mem_readl : addr=0x%08X, val=0x%08X\n",(unsigned) addr, val));
+
+ return val;
+}
+
+static void ehci_mem_writeb(void *ptr, target_phys_addr_t addr, uint32_t val)
+{
+ printf("EHCI doesn't handle byte writes to MMIO\n");
+ exit(1);
+}
+
+static void ehci_mem_writew(void *ptr, target_phys_addr_t addr, uint32_t val)
+{
+ printf("EHCI doesn't handle 16-bit writes to MMIO\n");
+ exit(1);
+}
+
+static void handle_port_status_write(EHCIState *s, int port, uint32_t val)
+{
+ uint32_t *portsc = &s->portsc[port];
+ int rwc;
+ USBDevice *dev = s->ports[port].dev;
+
+ DEBUG(("PORTSC %08X->%08X rwc=%08X rw=%08X\n", *portsc, val,
+ (val & PORTSC_RWC_MASK),
+ val & PORTSC_RO_MASK));
+
+ rwc = val & PORTSC_RWC_MASK;
+ val &= PORTSC_RO_MASK;
+
+ // handle_read_write_clear(&val, portsc, PORTSC_PEDC | PORTSC_CSC);
+
+ *portsc &= ~rwc;
+
+ DEBUG(("PORTSC -> %08X\n", *portsc));
+
+ if ((val & PORTSC_PRESET) && !(*portsc & PORTSC_PRESET)) {
+ DEBUG(("USBTRAN Port %d reset begin\n", port));
+ }
+
+ if (!(val & PORTSC_PRESET) &&(*portsc & PORTSC_PRESET)) {
+ DEBUG(("USBTRAN Port %d reset done\n", port));
+ ehci_attach(&s->ports[port], dev);
+
+ // TODO how to handle reset of ports with no device
+ if (dev)
+ usb_send_msg(dev, USB_MSG_RESET);
+
+ if (s->ports[port].dev) {
+ DEBUG(("Device was connected before reset, clearing CSC bit\n"));
+ *portsc &= ~PORTSC_CSC;
+ }
+
+ /* Table 2.16 Set the enable bit(and enable bit change) to indicate
+ * to SW that this port has a high speed device attached
+ *
+ * TODO - when to disable?
+ */
+ val |= PORTSC_PED;
+ val |= PORTSC_PEDC;
+ }
+
+ *portsc &= ~PORTSC_RO_MASK;
+ *portsc |= val;
+ DEBUG(("Port status set to 0x%08x\n", *portsc));
+}
+
+static void ehci_mem_writel(void *ptr, target_phys_addr_t addr, uint32_t val)
+{
+ EHCIState *s = ptr;
+ int i;
+
+ addr -= s->mem_base;
+
+ /* Only aligned reads are allowed on OHCI */
+ if (addr & 3) {
+ printf("usb-ehci: Mis-aligned write\n");
+ return;
+ }
+
+ if (addr >= PORTSC && addr < PORTSC + 4 * NB_PORTS) {
+ DEBUG(("mem_writel : PORTSC%d->0x%08X \n",(int)(addr-PORTSC)/4, val));
+ handle_port_status_write(s,(addr-PORTSC)/4, val);
+ return;
+ }
+
+ /* Do any register specific pre-write processing here. */
+
+ switch(addr)
+ {
+ case USBCMD:
+ if ((val & USBCMD_RUNSTOP) && !(s->usbcmd & USBCMD_RUNSTOP)) {
+ DEBUG(("mem_writel : USBCMD run, clear halt\n"));
+ // printf("Call mod_timer for %p\n", s->frame_timer);
+ qemu_mod_timer(s->frame_timer, qemu_get_clock(vm_clock));
+ s->last_run_usec = qemu_get_clock(vm_clock) / 1000;
+ s->usbsts &= ~USBSTS_HALT;
+ }
+
+ if (!(val & USBCMD_RUNSTOP) &&(s->usbcmd & USBCMD_RUNSTOP)) {
+ DEBUG(("mem_writel : USBCMD ** STOP **\n"));
+ // printf("Call del_timer for %p\n", s->frame_timer);
+#if 0
+ qemu_del_timer(s->frame_timer);
+#endif
+ // TODO - should finish out some stuff before setting halt
+ s->usbsts |= USBSTS_HALT;
+ }
+
+ if (val & USBCMD_HCRESET) {
+ DEBUG(("mem_writel : USBCMD resetting ...\n"));
+ ehci_reset(s);
+ DEBUG(("mem_writel : USBCMD reset done, clear reset request
bit\n"));
+ val &= ~USBCMD_HCRESET;
+ }
+
+ break;
+
+ case USBSTS:
+ val &= USBSTS_RO_MASK; // bits 6 thru 31 are RO
+ DEBUG(("mem_writel : USBSTS RWC set to 0x%08X\n", val));
+
+ val =(s->usbsts &= ~val); // bits 0 thru 5 are R/WC
+ DEBUG(("mem_writel : USBSTS updating interrupt condition\n"));
+ ehci_set_interrupt(s, 0);
+
+ break;
+
+ case USBINTR:
+ val &= USBINTR_MASK;
+ // DEBUG(("mem_writel : USBINTR set to 0x%08X\n", val));
+ break;
+
+ case FRINDEX:
+ s->sofv = val >> 3;
+ break;
+
+ case CONFIGFLAG:
+ val &= 0x1;
+
+ if (val) {
+ for(i = 0; i < NB_PORTS; i++)
+ s->portsc[i] &= ~PORTSC_POWNER;
+ }
+
+ break;
+ }
+
+ if (addr != 0x28) {
+ DEBUG(("mem_writel : addr=0x%08X, val=0x%08X\n",(unsigned) addr, val));
+ }
+
+ *(uint32_t *)(&s->mmio[addr]) = val;
+}
+
+
+// TODO : Put in common header file, duplication from usb-ohci.c
+
+/* Get an array of dwords from main memory */
+static inline int get_dwords(uint32_t addr, uint32_t *buf, int num)
+{
+ int i;
+
+ for(i = 0; i < num; i++, buf++, addr += sizeof(*buf)) {
+ cpu_physical_memory_rw(addr,(uint8_t *)buf, sizeof(*buf), 0);
+ *buf = le32_to_cpu(*buf);
+ }
+
+ return 1;
+}
+
+/* Put an array of dwords in to main memory */
+static inline int put_dwords(uint32_t addr, uint32_t *buf, int num)
+{
+ int i;
+
+ for(i = 0; i < num; i++, buf++, addr += sizeof(*buf)) {
+ uint32_t tmp = cpu_to_le32(*buf);
+ cpu_physical_memory_rw(addr,(uint8_t *)&tmp, sizeof(tmp), 1);
+ }
+
+ return 1;
+}
+
+// 4.10.2
+
+static void ehci_qh_do_overlay(EHCIState *ehci, EHCIqh *qh, EHCIqtd *qtd)
+{
+ int i;
+ int dtoggle;
+ int ping;
+
+ // remember values in fields to preserve in qh after overlay
+
+ dtoggle = qh->token & QTD_TOKEN_DTOGGLE;
+ ping = qh->token & QTD_TOKEN_PING;
+
+ DEBUG(("setting qh.current from %08X to 0x%08X\n", qh->current,
+ ehci->qtdaddr));
+ qh->current = ehci->qtdaddr;
+ qh->qtdnext = qtd->next;
+ qh->altnext = qtd->altnext;
+ qh->token = qtd->token;
+
+ if (qh->current < 0x1000) {
+#ifdef DEBUG_PACKET
+ dump_qh(qh, qh->current);
+#endif
+ ASSERT(1==2);
+ }
+
+ if (((qh->epchar & QH_EPCHAR_EPS_MASK) >> QH_EPCHAR_EPS_SH) == 2) {
+ qh->token &= ~QTD_TOKEN_PING;
+ qh->token |= ping;
+ }
+
+ for(i = 0; i < 6; i++)
+ qh->bufptr[i] = qtd->bufptr[i];
+
+ if (!(qh->epchar & QH_EPCHAR_DTC)) {
+ // preserve QH DT bit
+ qh->token &= ~QTD_TOKEN_DTOGGLE;
+ qh->token |= dtoggle;
+ }
+
+ qh->bufptr[1] &= ~BUFPTR_CPROGMASK_MASK;
+ qh->bufptr[2] &= ~BUFPTR_FRAMETAG_MASK;
+
+ // TODO NakCnt
+}
+
+static void ehci_buffer_rw(EHCIState *ehci, EHCIqh *qh, int bytes, int rw)
+{
+ int bufpos = 0;
+ int cpage;
+ uint32_t head;
+ uint32_t tail;
+
+ cpage = get_field(qh->token, QTD_TOKEN_CPAGE_MASK, QTD_TOKEN_CPAGE_SH);
+ ASSERT(cpage == 0);
+
+ DEBUG(("exec: %sing %d bytes to/from %08x\n",
+ rw ? "writ" : "read", bytes, qh->bufptr[0]));
+
+ if (!bytes)
+ return;
+
+ do {
+ head = qh->bufptr[cpage];
+ tail =(qh->bufptr[cpage] & 0xfffff000) + 0x1000;
+
+ if (bytes <=(tail - head))
+ tail = head + bytes;
+
+ DEBUG(("DATA %s cpage:%d head:%08X tail:%08X target:%08X\n",
+ rw ? "WRITE" : "READ ", cpage, head, tail, bufpos));
+
+ ASSERT(bufpos + tail - head <= BUFF_SIZE);
+ ASSERT(tail - head > 0);
+
+ cpu_physical_memory_rw(qh->bufptr[cpage], &ehci->buffer[bufpos],
+ tail - head, rw);
+
+ bufpos +=(tail - head);
+ bytes -=(tail - head);
+
+ qh->bufptr[cpage] +=(tail - head);
+
+ if (bytes > 0)
+ cpage++;
+ } while (bytes > 0);
+
+ set_field(&qh->token, cpage, QTD_TOKEN_CPAGE_MASK, QTD_TOKEN_CPAGE_SH);
+}
+
+static int transactid;
+
+static void ehci_async_complete_packet(USBPacket *packet, void *opaque)
+{
+ EHCIState *ehci = opaque;
+#ifdef DEBUG_PACKET
+ dprintf("Async packet complete\n");
+#endif
+ ehci->async_complete = 1;
+ ehci->exec_status = packet->len;
+}
+
+static int ehci_execute_complete(EHCIState *ehci,
+ EHCIqh *qh,
+ int ret)
+{
+ if (ret == USB_RET_ASYNC && !ehci->async_complete) {
+ DEBUG(("not done yet\n"));
+ return ret;
+ }
+
+ ehci->async_complete = 0;
+ ehci->async_port_in_progress = -1;
+
+ if (ret < 0) {
+ switch(ret) {
+ case USB_RET_NODEV:
+ printf("USB no device\n");
+ break;
+ case USB_RET_STALL:
+ printf("USB stall\n");
+ qh->token |= QTD_TOKEN_HALT;
+ break;
+ case USB_RET_NAK:
+ DEBUG(("USBTRAN RSP NAK, returning without clear active\n"));
+ return USB_RET_NAK;
+ break;
+ case USB_RET_BABBLE:
+ printf("USB babble TODO\n");
+ ASSERT(ret >= 0);
+ break;
+ default:
+ printf("USB invalid response %d to handle\n",
+ ret);
+ ASSERT(ret >= 0);
+ break;
+ }
+ } else {
+ // if (ret < maxpkt)
+ // {
+ // DEBUG(("Short packet condition\n"));
+ // // TODO check 4.12 for splits
+ // }
+
+ if (ehci->tbytes && ehci->pid == USB_TOKEN_IN) {
+ ASSERT(ret > 0);
+ ehci_buffer_rw(ehci, qh, ret, 1);
+#ifdef TDEBUG
+ printf("Data after execution:\n");
+ // dump_data(ehci->buffer, ehci->tbytes < 64 ? ehci->tbytes : 64);
+ // decode_data(ehci->pid, ehci->buffer, ret);
+#endif
+ ehci->tbytes -= ret;
+ } else
+ ehci->tbytes = 0;
+
+ ASSERT(ehci->tbytes >= 0);
+
+ set_field(&qh->token, ehci->tbytes,
+ QTD_TOKEN_TBYTES_MASK, QTD_TOKEN_TBYTES_SH);
+ }
+
+ qh->token ^= QTD_TOKEN_DTOGGLE;
+ qh->token &= ~QTD_TOKEN_ACTIVE;
+
+ if (qh->token & QTD_TOKEN_IOC) {
+ // TODO should do this after writeback to memory
+ ehci_set_interrupt(ehci, USBSTS_INT);
+ }
+#ifdef DEBUG_PACKET
+ DEBUG(("QH after execute:-\n"));
+ dump_qh(qh, NLPTR_GET(ehci->qhaddr));
+#endif
+
+#ifdef TDEBUG
+ printf("USBTRAN RSP %3d return:(%5d) ",
+ transactid,
+ ret);
+
+ if (ehci->pid == USB_TOKEN_IN) {
+ printf("[%02X %02X %02X %02X ...]\n",
+ *ehci->buffer, *(ehci->buffer+1),
+ *(ehci->buffer+2), *(ehci->buffer+3));
+ }
+ else
+ printf("\n");
+#endif
+ return ret;
+}
+
+// 4.10.3
+
+static int ehci_execute(EHCIState *ehci,
+ uint32_t qhaddr,
+ EHCIqh *qh)
+{
+ USBPort *port;
+ USBDevice *dev;
+ int smask;
+ int maxpkt;
+ int ret;
+ int i;
+ int endp;
+ int devadr;
+
+ smask = QH_EPCAP_SMASK_MASK & qh->epcap;
+ ehci->tbytes =(qh->token & QTD_TOKEN_TBYTES_MASK) >> QTD_TOKEN_TBYTES_SH;
+ ehci->pid =(qh->token & QTD_TOKEN_PID_MASK) >> QTD_TOKEN_PID_SH;
+ maxpkt = get_field(qh->epchar, QH_EPCHAR_MPLEN_MASK, QH_EPCHAR_MPLEN_SH);
+ endp = get_field(qh->epchar, QH_EPCHAR_EP_MASK, QH_EPCHAR_EP_SH);
+ devadr = get_field(qh->epchar, QH_EPCHAR_DEVADDR_MASK, 0);
+
+ if ( !(qh->token & QTD_TOKEN_ACTIVE)) {
+ printf("Attempting to execute inactive QH\n");
+ exit(1);;
+ }
+
+ if (smask) {
+ DEBUG(("active interrupt transfer frindex %d for dev %d EP %d\n",
+ ehci->frindex, devadr, endp));
+ // TODO are interrupt always IN ?
+ ehci->pid = USB_TOKEN_IN;
+ } else {
+ DEBUG(("Active non-interrupt QH, executing\n"));
+
+ DEBUG(("pid is %2X\n", ehci->pid));
+
+ switch(ehci->pid) {
+ case 0: ehci->pid = USB_TOKEN_OUT; break;
+ case 1: ehci->pid = USB_TOKEN_IN; break;
+ case 2: ehci->pid = USB_TOKEN_SETUP; break;
+ default: printf("bad token\n"); break;
+ }
+ }
+
+ // TODO set reclam
+
+#ifdef DEBUG_PACKET
+ DEBUG(("QH before execute:-\n"));
+ dump_qh(qh, NLPTR_GET(qhaddr));
+#endif
+
+ if (ehci->tbytes && ehci->pid != USB_TOKEN_IN) {
+ ehci_buffer_rw(ehci, qh, ehci->tbytes, 0);
+#ifdef TDEBUG
+ printf("Data before execution:\n");
+ // dump_data(ehci->buffer, ehci->tbytes < 64 ? ehci->tbytes : 64);
+ // decode_data(ehci->pid, ehci->buffer, ehci->tbytes);
+#endif
+ }
+
+#ifdef TDEBUG
+ printf("\nUSBTRAN REQ %3d dev:%d ep:%d pid:%02X %s bytes:(%5d) ",
+ ++transactid,
+ devadr,
+ endp,
+ ehci->pid,
+ (ehci->pid == USB_TOKEN_SETUP ? "(SETUP)" :
+ (ehci->pid == USB_TOKEN_IN ? "(IN) " :
+ (ehci->pid == USB_TOKEN_OUT ? "(OUT) " : "(*****)"))),
+ ehci->tbytes);
+
+ if (ehci->pid != USB_TOKEN_IN) {
+ printf("[%02X %02X %02X %02X ...]\n",
+ *ehci->buffer, *(ehci->buffer+1),
+ *(ehci->buffer+2), *(ehci->buffer+3));
+ }
+ else
+ printf("\n");
+#endif
+
+ ret = USB_RET_NODEV;
+
+ for(i = 0; i < NB_PORTS; i++) {
+ port = &ehci->ports[i];
+ dev = port->dev;
+
+ // TODO sometime we will also need to check if we are the port owner
+
+ if (!(ehci->portsc[i] &(PORTSC_CONNECT))) {
+ DEBUG(("Port %d, no exec, not connected(%08X)\n",
+ i, ehci->portsc[i]));
+ continue;
+ }
+
+ ehci->usb_packet.pid = ehci->pid;
+ ehci->usb_packet.devaddr = devadr;
+ ehci->usb_packet.devep = endp;
+ ehci->usb_packet.data = ehci->buffer;
+ ehci->usb_packet.len = ehci->tbytes;
+ ehci->usb_packet.complete_cb = ehci_async_complete_packet;
+ ehci->usb_packet.complete_opaque = ehci;
+
+ DEBUG(("calling dev->handle_packet\n"));
+ ret = dev->handle_packet(dev, &ehci->usb_packet);
+
+ if (ret != USB_RET_NODEV)
+ break;
+ }
+
+ DEBUG(("exit loop dev->handle_packet\n"));
+
+ if (ret > BUFF_SIZE || ehci->tbytes > BUFF_SIZE) {
+ printf("bogus QH byte count\n");
+ dump_qh(qh, NLPTR_GET(qhaddr));
+ ASSERT(ret <= BUFF_SIZE && ehci->tbytes <= BUFF_SIZE);
+ }
+
+ if (ret == USB_RET_ASYNC) {
+ ehci->async_port_in_progress = i;
+ ehci->async_complete = 0;
+ }
+
+ return ret;
+}
+
+/* 4.7.2
+ */
+
+static void ehci_process_itd(EHCIState *ehci,
+ EHCIitd *itd)
+{
+ USBPort *port;
+ USBDevice *dev;
+ int ret;
+ int i, j;
+ int ptr;
+ int pid;
+ int pg;
+ int len;
+ int dir;
+ int devadr;
+ int endp;
+ int maxpkt;
+
+ dir =(itd->bufptr[1] & ITD_BUFPTR_DIRECTION);
+ devadr = get_field(itd->bufptr[0],
+ ITD_BUFPTR_DEVADDR_MASK, 0);
+ endp = get_field(itd->bufptr[0],
+ ITD_BUFPTR_EP_MASK, ITD_BUFPTR_EP_SH);
+ maxpkt = get_field(itd->bufptr[1], ITD_BUFPTR_MAXPKT_MASK, 0);
+
+#ifdef EHCI_NOMICROFRAMES
+ for(i = 0; i < 8; i++) {
+#else
+ i =(ehci->frindex & 7);
+#endif
+
+ if (itd->transact[i] & ITD_XACT_ACTIVE) {
+ DEBUG(("ISOCHRONOUS active for frame %d, interval %d\n",
+ ehci->frindex >> 3, i));
+
+ pg = get_field(itd->transact[i], ITD_XACT_PGSEL_MASK,
+ ITD_XACT_PGSEL_SH);
+ ptr =(itd->bufptr[pg] & ITD_BUFPTR_MASK) |
+ (itd->transact[i] & ITD_XACT_OFFSET_MASK);
+ len = get_field(itd->transact[i], ITD_XACT_LENGTH_MASK,
+ ITD_XACT_LENGTH_SH);
+
+ ASSERT(len <= BUFF_SIZE);
+
+ DEBUG(("ISOCH: buffer %08X len %d\n", ptr, len));
+
+ if (!dir) {
+ cpu_physical_memory_rw(ptr, &ehci->buffer[0], len, 0);
+ pid = USB_TOKEN_OUT;
+ } else
+ pid = USB_TOKEN_IN;
+
+ ret = USB_RET_NODEV;
+
+ for(j = 0; j < NB_PORTS; j++) {
+ port = &ehci->ports[j];
+ dev = port->dev;
+
+ // TODO sometime we will also need to check if we are the port
owner
+
+ if (!(ehci->portsc[j] &(PORTSC_CONNECT))) {
+ DEBUG(("Port %d, no exec, not connected(%08X)\n",
+ j, ehci->portsc[j]));
+ continue;
+ }
+
+ ehci->usb_packet.pid = ehci->pid;
+ ehci->usb_packet.devaddr = devadr;
+ ehci->usb_packet.devep = endp;
+ ehci->usb_packet.data = ehci->buffer;
+ ehci->usb_packet.len = len;
+ ehci->usb_packet.complete_cb = ehci_async_complete_packet;
+ ehci->usb_packet.complete_opaque = ehci;
+
+ DEBUG(("calling dev->handle_packet\n"));
+ ret = dev->handle_packet(dev, &ehci->usb_packet);
+
+ if (ret != USB_RET_NODEV)
+ break;
+ }
+
+ /* In isoch, there is no facility to indicate a NAK so let's
+ * instead just complete a zero-byte transaction. Setting
+ * DBERR seems too draconian.
+ */
+
+ if (ret == USB_RET_NAK) {
+ if (ehci->isoch_pause > 0) {
+ DEBUG(("ISOCH: received a NAK but paused so returning\n"));
+ ehci->isoch_pause--;
+ return;
+ } else if (ehci->isoch_pause == -1) {
+ DEBUG(("ISOCH: recv NAK & isoch pause inactive, setting\n"));
+ // Pause frindex for up to 50 msec waiting for data from
+ // remote
+ ehci->isoch_pause = 50;
+ return;
+ } else {
+ DEBUG(("ISOCH: isoch pause timeout! return 0\n"));
+ ret = 0;
+ }
+ } else {
+ DEBUG(("ISOCH: received ACK, clearing pause\n"));
+ ehci->isoch_pause = -1;
+ }
+
+ if (ret >= 0) {
+ itd->transact[i] &= ~ITD_XACT_ACTIVE;
+
+ if (itd->transact[i] & ITD_XACT_IOC) {
+ // TODO should do this after writeback to memory
+ ehci_set_interrupt(ehci, USBSTS_INT);
+ }
+ }
+
+ if (ret >= 0 && dir) {
+ cpu_physical_memory_rw(ptr, &ehci->buffer[0], len, 1);
+
+ if (ret != len) {
+ DEBUG(("ISOCH IN expected %d, got %d\n",
+ len, ret));
+ set_field(&itd->transact[i],
+ ret,
+ ITD_XACT_LENGTH_MASK,
+ ITD_XACT_LENGTH_SH);
+ }
+ }
+ }
+
+#ifdef EHCI_NOMICROFRAMES
+ }
+#endif
+}
+
+/* This is the state machine that is common to both async and periodic */
+
+static int ehci_advance_state(EHCIState *ehci,
+ int async,
+ int state,
+ uint32_t entry)
+{
+ EHCIqh *qh = &ehci->qh;
+ EHCIqtd *qtd = &ehci->qtd;
+ EHCIitd itd;
+ int again = 0;
+ int loopcount = 0;
+ int transactCtr;
+ int smask;
+ int reload;
+ int nakcnt;
+
+ do {
+ DEBUG(("advance_state: again=%d\n", again));
+ again = 0;
+ // ASSERT(loopcount++ < MAX_ITERATIONS);
+
+ switch(state) {
+ /* This state is the entry point for asynchronous schedule
+ * processing. Entry here consitutes a EHCI start event state(4.8.5)
+ */
+ case EST_WAITLISTHEAD:
+ DEBUG(("WAITLISTHEAD\n"));
+
+ if (async)
+ ehci->usbsts |= USBSTS_REC;
+
+ /* Find the head of the list
+ */
+
+ for(loopcount = 0; loopcount < MAX_QH; loopcount++) {
+ get_dwords(NLPTR_GET(entry),(uint32_t *) qh,
+ sizeof(EHCIqh) >> 2);
+
+ if (qh->epchar & QH_EPCHAR_H) {
+ DEBUG(("QH %08X is the HEAD of the list\n", entry));
+ break;
+ }
+
+ DEBUG(("QH %08X is NOT the HEAD of the list\n", entry));
+ entry = qh->next;
+ }
+
+ entry |=(NLPTR_TYPE_QH << 1);
+ ASSERT(loopcount < MAX_QH);
+ loopcount = 0;
+
+ state = EST_FETCHENTRY;
+ again = 1;
+ break;
+
+ /* This state is the entry point for periodic schedule
+ * processing as well as being a continuation state for async
+ * processing.
+ */
+ case EST_FETCHENTRY:
+ DEBUG(("FETCHENTRY\n"));
+
+ if (qemu_get_clock(vm_clock) / 1000 > ehci->frame_end_usec) {
+ if (async) {
+ DEBUG(("FRAME timer elapsed, exit state machine\n"));
+ state = EST_ACTIVE;
+ break;
+ } else
+ DEBUG(("WARNING - frame timer elapsed during periodic\n"));
+ }
+
+ if (NLPTR_TBIT(entry)) {
+ state = EST_ACTIVE;
+ break;
+ }
+
+ if (NLPTR_TYPE_GET(entry) == NLPTR_TYPE_QH) {
+ state = EST_FETCHQH;
+ ehci->qhaddr = entry;
+ again = 1;
+ break;
+ }
+
+ if (NLPTR_TYPE_GET(entry) == NLPTR_TYPE_ITD) {
+ state = EST_FETCHITD;
+ ehci->itdaddr = entry;
+ again = 1;
+ break;
+ }
+
+ // TODO handle types other than QH
+ ASSERT(NLPTR_TYPE_GET(entry) == NLPTR_TYPE_QH);
+ break;
+
+ case EST_FETCHQH:
+ get_dwords(NLPTR_GET(ehci->qhaddr),(uint32_t *) qh, sizeof(EHCIqh)
>> 2);
+ DEBUG(("FETCHQH: Fetched QH at address %08X "
+ "(next is %08X, h-bit is %d)\n",
+ ehci->qhaddr, qh->next, qh->epchar & QH_EPCHAR_H));
+
+#ifdef DEBUG_PACKET
+ dump_qh(qh, NLPTR_GET(ehci->qhaddr));
+#endif
+
+ if (async) {
+ /* EHCI spec version 1.0 Section 4.8.3
+ */
+ if (qh->epchar & QH_EPCHAR_H) {
+ DEBUG(("h-bit set\n"));
+
+ if (!(ehci->usbsts & USBSTS_REC)) {
+ DEBUG(("h-bit and !reclam, done\n"));
+ state = EST_ACTIVE;
+ break;
+ }
+ }
+ /* EHCI spec version 1.0 Section 4.10.1
+ */
+ if ( !(qh->epcap & QH_EPCAP_SMASK_MASK)) {
+ DEBUG(("not intr, clear reclam\n"));
+ ehci->usbsts &= ~USBSTS_REC;
+ }
+ } else {
+ DEBUG(("exec: qh check, frindex is %d,%d\n",
+ (ehci->frindex >> 3),(ehci->frindex & 7)));
+ }
+
+ reload = get_field(qh->epchar, QH_EPCHAR_RL_MASK, QH_EPCHAR_RL_SH);
+
+ if (reload) {
+ DEBUG(("reloading nakcnt to %d\n",
+ reload));
+ set_field(&qh->altnext, reload, QH_ALTNEXT_NAKCNT_MASK,
+ QH_ALTNEXT_NAKCNT_SH);
+ }
+
+ if (qh->token & QTD_TOKEN_ACTIVE) {
+ if ((qh->token & QTD_TOKEN_HALT)) {
+ printf("Active, Halt, ** ILLEGAL **\n");
+ state = EST_ACTIVE;
+ } else {
+ DEBUG(("Active, !Halt, execute - fetchqtd\n"));
+ ehci->qtdaddr = qh->current;
+ state = EST_FETCHQTD;
+ again = 1;
+ }
+ } else {
+ if (qh->token & QTD_TOKEN_HALT) {
+ DEBUG(("!Active, Halt, go horiz\n"));
+ state = EST_HORIZONTALQH;
+ again = 1;
+ } else {
+ /* EHCI spec version 1.0 Section 4.10.2
+ */
+ DEBUG(("!Active, !Halt, adv q\n"));
+ state = EST_ADVANCEQUEUE;
+ again = 1;
+ }
+ }
+
+ break;
+
+ case EST_FETCHITD:
+ get_dwords(NLPTR_GET(ehci->itdaddr),(uint32_t *) &itd,
+ sizeof(EHCIitd) >> 2);
+ DEBUG(("FETCHITD: Fetched ITD at address %08X "
+ "(next is %08X)\n",
+ ehci->itdaddr, itd.next));
+
+#ifdef DEBUG_PACKET
+ dump_itd(&itd, NLPTR_GET(ehci->itdaddr));
+#endif
+
+ ehci_process_itd(ehci, &itd);
+#ifdef DEBUG_PACKET
+ dump_itd(&itd, NLPTR_GET(ehci->itdaddr));
+#endif
+ put_dwords(NLPTR_GET(ehci->itdaddr),(uint32_t *) &itd,
+ sizeof(EHCIitd) >> 2);
+ entry = itd.next;
+ state = EST_FETCHENTRY;
+ again = 1;
+ break;
+
+ case EST_ADVANCEQUEUE:
+ DEBUG(("ADVANCEQUEUE\n"));
+ if ((qh->token & QTD_TOKEN_TBYTES_MASK) != 0 &&
+ NLPTR_TBIT(qh->altnext) == 0) {
+ ehci->qtdaddr = qh->altnext;
+ DEBUG(("tbytes!=0 and tbit = 0, go with altnext\n"));
+ } else {
+ if (NLPTR_TBIT(qh->qtdnext)) {
+ state = EST_HORIZONTALQH;
+ again = 1;
+ break;
+ }
+
+ ehci->qtdaddr = qh->qtdnext;
+ }
+ state = EST_FETCHQTD;
+ again = 1;
+ break;
+
+ case EST_FETCHQTD:
+ DEBUG(("FETCHQTD: Fetching QTD at address %08X\n", ehci->qtdaddr));
+ get_dwords(NLPTR_GET(ehci->qtdaddr),(uint32_t *) qtd,
+ sizeof(EHCIqtd) >> 2);
+
+ if (qtd->token & QTD_TOKEN_ACTIVE) {
+ state = EST_EXECUTE;
+ again = 1;
+ break;
+ } else {
+ DEBUG(("abort advance, not active\n"));
+ state = EST_HORIZONTALQH;
+ again = 1;
+ break;
+ }
+
+ break;
+
+ case EST_HORIZONTALQH:
+ entry = qh->next;
+ state = EST_FETCHENTRY;
+ again = 1;
+ break;
+
+ case EST_EXECUTE:
+ if (async) {
+ DEBUG(("\n\n>>>>> ASYNC STATE MACHINE execute\n"));
+ } else {
+ DEBUG(("\n\n>>>>> PERIODIC STATE MACHINE execute\n"));
+ }
+
+#ifdef DEBUG_PACKET
+ dump_qh(qh, NLPTR_GET(ehci->qhaddr));
+ dump_qtd(qtd, NLPTR_GET(ehci->qtdaddr));
+#endif
+
+ smask = QH_EPCAP_SMASK_MASK & qh->epcap;
+
+#ifndef EHCI_NOMICROFRAMES
+ if (smask &&(smask &(1 <<(ehci->frindex & 7))) == 0) {
+ DEBUG(("PERIODIC active not interval: "
+ "mask is %d, "
+ "frindex is %d,%d\n",
+ smask,
+ (ehci->frindex >> 3),(ehci->frindex & 7)));
+
+ state = EST_HORIZONTALQH;
+ again = 1;
+ break;
+ }
+#endif
+
+ if (smask) {
+ DEBUG(("PERIODIC active !!! "
+ "mask is %d, "
+ "frindex is %d,%d\n",
+ smask,
+ (ehci->frindex >> 3),(ehci->frindex & 7)));
+ }
+
+ reload = get_field(qh->epchar, QH_EPCHAR_RL_MASK, QH_EPCHAR_RL_SH);
+ nakcnt = get_field(qh->altnext, QH_ALTNEXT_NAKCNT_MASK,
QH_ALTNEXT_NAKCNT_SH);
+ if (reload && !nakcnt) {
+ DEBUG(("RL != 0 but NakCnt == 0, no execute\n"));
+ state = EST_HORIZONTALQH;
+ again = 1;
+ break;
+ }
+
+ transactCtr = get_field(qh->epcap,
+ QH_EPCAP_MULT_MASK, QH_EPCAP_MULT_SH);
+
+ // TODO verify enough time remains in the uframe as in 4.4.1.1
+
+ // TODO write back ptr to async list when done or out of time
+
+ // TODO Windows does not seem to ever set the MULT field
+
+#if 0
+ if (!transactCtr &&(qh->epcap & QH_EPCAP_SMASK_MASK) > 0)
+ {
+ DEBUG(("ZERO transactctr for int qh, go HORIZ\n"));
+ *state = EST_HORIZONTALQH;
+ again = 1;
+ break;
+ }
+#endif
+
+ if (!transactCtr) {
+ transactCtr = 1; // TODO - check at what level do we repeat
+
+ if (qh->epcap & QH_EPCAP_SMASK_MASK)
+ DEBUG(("WARN - ZERO transactctr force to 1 for intr\n"));
+ }
+
+ DEBUG(("exec: ctr is %d\n", transactCtr));
+ DEBUG(("exec: frindex is %d,%d\n",
+ (ehci->frindex >> 3),(ehci->frindex & 7)));
+
+ ehci_qh_do_overlay(ehci, qh, qtd);
+ ehci->exec_status = ehci_execute(ehci, ehci->qhaddr, qh);
+ state = EST_EXECUTING;
+
+ if (ehci->exec_status != USB_RET_ASYNC)
+ again = 1;
+
+ break;
+
+ case EST_EXECUTING:
+ DEBUG(("Enter EXECUTING\n"));
+ ehci->exec_status = ehci_execute_complete(ehci, qh,
+ ehci->exec_status);
+
+ if (ehci->exec_status == USB_RET_ASYNC)
+ break;
+
+ DEBUG(("finishing exec\n"));
+ transactCtr = get_field(qh->epcap,
+ QH_EPCAP_MULT_MASK, QH_EPCAP_MULT_SH);
+
+ if (transactCtr)
+ transactCtr--;
+
+ set_field(&qh->epcap, transactCtr,
+ QH_EPCAP_MULT_MASK, QH_EPCAP_MULT_SH);
+
+ reload = get_field(qh->epchar, QH_EPCHAR_RL_MASK, QH_EPCHAR_RL_SH);
+ nakcnt = get_field(qh->altnext, QH_ALTNEXT_NAKCNT_MASK,
QH_ALTNEXT_NAKCNT_SH);
+
+ if (reload != 0) {
+ if (ehci->exec_status == USB_RET_NAK) {
+ nakcnt--;
+
+ DEBUG(("Nak occured and RL != 0, dec NakCnt to %d\n",
+ nakcnt));
+ } else {
+ nakcnt = reload;
+
+ DEBUG(("Nak didn't occur, reloading to %d\n",
+ nakcnt));
+ }
+
+ set_field(&qh->altnext, nakcnt, QH_ALTNEXT_NAKCNT_MASK,
+ QH_ALTNEXT_NAKCNT_SH);
+ }
+
+ /*
+ * Write the qh back to guest physical memory. This step isn't
+ * in the EHCI spec but we need to do it since we don't share
+ * physical memory with our guest VM.
+ */
+
+ DEBUG(("write QH to VM memory\n"));
+#ifdef DEBUG_PACKET
+ dump_qh(qh, NLPTR_GET(ehci->qhaddr));
+#endif
+ put_dwords(NLPTR_GET(ehci->qhaddr),(uint32_t *) qh,
+ sizeof(EHCIqh) >> 2);
+
+ // 4.10.5
+
+ if (qh->token & QTD_TOKEN_ACTIVE)
+ state = EST_HORIZONTALQH;
+ else
+ state = EST_WRITEBACK;
+
+ again = 1;
+ break;
+
+ case EST_WRITEBACK:
+ /* Write back the QTD from the QH area */
+ DEBUG(("write QTD to VM memory\n"));
+ put_dwords(NLPTR_GET(ehci->qtdaddr),(uint32_t *) &qh->qtdnext,
+ sizeof(EHCIqtd) >> 2);
+ /* TODO confirm next state. For now, keep going if async
+ * but stop after one qtd if periodic
+ */
+ // if (async)
+ // {
+ state = EST_FETCHQH;
+ again = 1;
+ // }
+ // else
+ // state = EST_ACTIVE;
+ break;
+
+ default:
+ printf("Bad state!\n");
+ break;
+ }
+ }
+ while (again);
+
+ return state;
+}
+
+static void ehci_advance_async_state(EHCIState *ehci)
+{
+ switch(ehci->astate) {
+ case EST_INACTIVE:
+ if (ehci->usbcmd & USBCMD_ASE) {
+ DEBUG(("ASYNC going active\n"));
+ ehci->usbsts |= USBSTS_ASS;
+ ehci->astate = EST_ACTIVE;
+ // No break, fall through to ACTIVE
+ } else
+ break;
+
+ case EST_ACTIVE:
+ if ( !(ehci->usbcmd & USBCMD_ASE)) {
+ DEBUG(("ASYNC going inactive\n"));
+ ehci->usbsts &= ~USBSTS_ASS;
+ ehci->astate = EST_INACTIVE;
+ break;
+ }
+
+ DEBUG(("\n\n\n\n === === === === === ===\n\n\n\n"));
+ if (ehci->usbcmd & USBCMD_IAAD) {
+ /* Async advance doorbell interrupted requested
+ */
+ ehci->usbcmd &= ~USBCMD_IAAD;
+ ehci_set_interrupt(ehci, USBSTS_IAA);
+ }
+
+ ehci->astate = ehci_advance_state(ehci, 1,
+ EST_WAITLISTHEAD,
+ ehci->asynclistaddr);
+ break;
+
+ case EST_EXECUTING:
+ DEBUG(("async state adv for executing\n"));
+ ehci->astate = ehci_advance_state(ehci, 1,
+ EST_EXECUTING, ehci->qhaddr);
+ break;
+
+ default:
+ printf("Bad asynchronous state %d\n",
+ ehci->astate);
+ ASSERT(1==2);
+ }
+}
+
+static void ehci_advance_periodic_state(EHCIState *ehci)
+{
+ uint32_t entry;
+ uint32_t list;
+
+ // 4.6
+
+ switch(ehci->pstate) {
+ case EST_INACTIVE:
+ if ( !(ehci->frindex & 7) &&(ehci->usbcmd & USBCMD_PSE)) {
+ DEBUG(("PERIODIC going active\n"));
+ ehci->usbsts |= USBSTS_PSS;
+ ehci->pstate = EST_ACTIVE;
+ // No break, fall through to ACTIVE
+ } else
+ break;
+
+ case EST_ACTIVE:
+ if ( !(ehci->frindex & 7) && !(ehci->usbcmd & USBCMD_PSE)) {
+ DEBUG(("PERIODIC going inactive\n"));
+ ehci->usbsts &= ~USBSTS_PSS;
+ ehci->pstate = EST_INACTIVE;
+ break;
+ }
+
+ list = ehci->periodiclistbase & 0xfffff000;
+ list |=((ehci->frindex & 0x1ff8) >> 1);
+
+ cpu_physical_memory_rw(list,(uint8_t *) &entry, sizeof entry, 0);
+ entry = le32_to_cpu(entry);
+
+ DEBUG(("periodic state adv fr=%d. [%08X] -> %08X\n",
+ ehci->frindex / 8, list, entry));
+ ehci->pstate = ehci_advance_state(ehci, 0,
+ EST_FETCHENTRY, entry);
+ break;
+
+ case EST_EXECUTING:
+ DEBUG(("periodic state adv for executing\n"));
+ ehci->pstate = ehci_advance_state(ehci, 0,
+ EST_EXECUTING, ehci->qhaddr);
+ break;
+
+ default:
+ printf("Bad periodic state %d\n",
+ ehci->pstate);
+ ASSERT(1==2);
+ }
+}
+
+static void ehci_frame_timer(void *opaque)
+{
+ EHCIState *ehci = opaque;
+ int64_t expire_time;
+ int usec_elapsed;
+ int frames;
+ int usec_now;
+ int i;
+ int skipped_frames = 0;
+
+ usec_now = qemu_get_clock(vm_clock) / 1000;
+ usec_elapsed = usec_now - ehci->last_run_usec;
+ ehci->frame_end_usec = usec_now + 1000;
+
+#ifdef EHCI_NOMICROFRAMES
+ frames = usec_elapsed / 1000;
+ ehci->frame_end_usec = usec_now + 1000;
+#else
+ frames = usec_elapsed / 125;
+ ehci->frame_end_usec = usec_now + 125;
+#endif
+
+#ifdef TDEBUG
+ DEBUG(("Frame timer, usec elapsed since last %d, frames %d\n",
+ usec_elapsed, frames));
+#endif
+
+ for(i = 0; i < frames; i++) {
+ if ( !(ehci->usbsts & USBSTS_HALT)) {
+ if (ehci->isoch_pause <= 0) {
+#ifdef EHCI_NOMICROFRAMES
+ ehci->frindex += 8;
+#else
+ ehci->frindex++;
+#endif
+ }
+
+ if (ehci->frindex > 0x00001fff) {
+ ehci->frindex = 0;
+#ifdef TDEBUG
+ DEBUG(("PERIODIC frindex rollover\n"));
+#endif
+ ehci_set_interrupt(ehci, USBSTS_FLR);
+ }
+
+ ehci->sofv =(ehci->frindex - 1) >> 3;
+ ehci->sofv &= 0x000003ff;
+ }
+
+ if (frames - i > 10)
+ skipped_frames++;
+ else {
+ // TODO could this cause periodic frames to get skipped if async
+ // active?
+ if (ehci->astate != EST_EXECUTING)
+ ehci_advance_periodic_state(ehci);
+ }
+
+#ifdef EHCI_NOMICROFRAMES
+ ehci->last_run_usec += 1000;
+#else
+ ehci->last_run_usec += 125;
+#endif
+ }
+
+ if (skipped_frames)
+ DEBUG(("WARNING - EHCI skipped %d frames\n", skipped_frames));
+
+ /* Async is not inside loop since it executes everything it can once
+ * called
+ */
+ if (ehci->pstate != EST_EXECUTING)
+ ehci_advance_async_state(ehci);
+
+ expire_time = qemu_get_clock(vm_clock) +
+ (ticks_per_sec / FRAME_TIMER_FREQ);
+
+ qemu_mod_timer(ehci->frame_timer, expire_time);
+
+ usec_elapsed = qemu_get_clock(vm_clock) / 1000 - usec_now;
+
+#ifdef TDEBUG
+ DEBUG(("TIMING: frame_timer used %d usec\n", usec_elapsed));
+#endif
+}
+
+static CPUReadMemoryFunc *ehci_readfn[3]={
+ ehci_mem_readb,
+ ehci_mem_readw,
+ ehci_mem_readl
+};
+
+static CPUWriteMemoryFunc *ehci_writefn[3]={
+ ehci_mem_writeb,
+ ehci_mem_writew,
+ ehci_mem_writel
+};
+
+static void ehci_map(PCIDevice *pci_dev, int region_num,
+ uint32_t addr, uint32_t size, int type)
+{
+ EHCIState *s =(EHCIState *)pci_dev;
+
+ DEBUG(("ehci_map: region %d, addr %08X, size %d, s->mem %08X\n",
+ region_num, addr, size, s->mem));
+ s->mem_base = addr;
+ cpu_register_physical_memory(addr, size, s->mem);
+}
+
+static EHCIState *ehci_info;
+
+void usb_ehci_info(void)
+{
+ int i;
+ uint32_t val;
+ static uint32_t last[0x64 + NB_PORTS * 4];
+
+ for(i = 0; i <= 0x64 + NB_PORTS * 4; i+=4) {
+ val = *(uint32_t *) &(ehci_info->mmio[i]);
+
+ printf("MMIO %08X : %08X [+/- %08X]\n", i, val, val ^ last[i/4]);
+ last[i/4] = val;
+ }
+}
+
+
+void usb_ehci_init(PCIBus *bus, int devfn)
+{
+ EHCIState *ehci;
+ uint8_t *pci_conf;
+ int i;
+
+ ehci =(EHCIState *)pci_register_device(bus,
+ "USB-EHCI", sizeof(EHCIState),
+ devfn, NULL, NULL);
+
+ pci_conf = ehci->dev.config;
+ pci_conf[0x00] = 0x86;
+ pci_conf[0x01] = 0x80; // Intel
+ pci_conf[0x02] = 0xCD;
+ pci_conf[0x03] = 0x24; // ICH4 / 82801D
+ pci_conf[0x08] = 0x10; // revision number
+ pci_conf[0x09] = 0x20;
+ pci_conf[0x0a] = 0x03;
+ pci_conf[0x0b] = 0x0c;
+ pci_conf[0x0e] = 0x00; // header_type 0
+ pci_conf[0x34] = 0x00; // capabilities pointer
+
+ // pci_conf[0x34] = 0x50; // capabilities pointer
+
+ pci_conf[0x3d] = 4; // interrupt pin 3
+ pci_conf[0x3e] = 0; // MaxLat
+ pci_conf[0x3f] = 0; // MinGnt
+
+ // pci_conf[0x50] = 0x01; // power management caps
+
+ pci_conf[0x60] = 0x20; // SBRN
+ pci_conf[0x61] = 0x20; // FLADJ
+ pci_conf[0x62] = 0x7f;
+ pci_conf[0x63] = 0x00; // PORTWAKECAP
+ pci_conf[0x64] = 0x00;
+ pci_conf[0x65] = 0x00;
+ pci_conf[0x66] = 0x00;
+ pci_conf[0x67] = 0x00;
+ pci_conf[0x68] = 0x01;
+ pci_conf[0x69] = 0x00;
+ pci_conf[0x6a] = 0x00;
+ pci_conf[0x6b] = 0x00; // USBLEGSUP
+ pci_conf[0x6c] = 0x00;
+ pci_conf[0x6d] = 0x00;
+ pci_conf[0x6e] = 0x00;
+ pci_conf[0x6f] = 0xc0; // USBLEFCTLSTS
+
+ ehci->mmio[0x00] = OPREGBASE;
+ ehci->mmio[0x01] = 0x00;
+ ehci->mmio[0x02] = 0x00;
+ ehci->mmio[0x03] = 0x01; // HC version
+ ehci->mmio[0x04] = NB_PORTS; // Number of downstream ports
+ ehci->mmio[0x05] = 0x00; // No companion ports at present
+ ehci->mmio[0x06] = 0x00;
+ ehci->mmio[0x07] = 0x00;
+ ehci->mmio[0x08] = 0x80; // We can cache whole frame, not 64-bit
capable
+ ehci->mmio[0x09] = 0x68; // EECP
+ ehci->mmio[0x0a] = 0x00;
+ ehci->mmio[0x0b] = 0x00;
+
+ ehci->irq = ehci->dev.irq[0];
+
+ // TODO - port registration is going to need an overhaul since ports
+ // can be low, full or high speed and are not tied to UHCI or EHCI.
+ // This works for now since we register last so are top of the free
+ // list but really all ports need to be owned by EHCI and it should
+ // hand off to companion controllers if device is full or low speed.
+
+ DEBUG(("ehci init : registering USB ports with no device attached\n"));
+
+ // TODO come up with a better port allocation scheme
+ for(i = NB_PORTS-1; i > 0; i--) {
+ qemu_register_usb_port(&ehci->ports[i], ehci, i, ehci_attach);
+ ehci->ports[i].dev = 0;
+ }
+
+ ehci->frame_timer = qemu_new_timer(vm_clock, ehci_frame_timer, ehci);
+ DEBUG(("Alloc new timer for %p\n", ehci->frame_timer));
+
+ ehci->mem = cpu_register_io_memory(0, ehci_readfn, ehci_writefn, ehci);
+
+ DEBUG(("ehci init : registering MMIO size %d\n", MMIO_SIZE));
+ pci_register_io_region(&ehci->dev, 0, MMIO_SIZE,
+ PCI_ADDRESS_SPACE_MEM, ehci_map);
+
+ ehci_reset(ehci);
+ ehci_info = ehci;
+
+ DEBUG(("*** ehci init : under development 16-OCT-08 *** \n\n"));
+}
+
Index: hw/pci.h
===================================================================
--- hw/pci.h (revision 5571)
+++ hw/pci.h (working copy)
@@ -112,6 +112,10 @@
/* usb-ohci.c */
void usb_ohci_init_pci(struct PCIBus *bus, int num_ports, int devfn);
+/* usb-ehci.c */
+void usb_ehci_init_pci(struct PCIBus *bus, int devfn);
+void usb_ehci_info(void);
+
/* eepro100.c */
void pci_i82551_init(PCIBus *bus, NICInfo *nd, int devfn);
Index: hw/pc.c
===================================================================
--- hw/pc.c (revision 5571)
+++ hw/pc.c (working copy)
@@ -1028,8 +1028,11 @@
cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device, hd);
+ // TODO the piix3 does not have EHCI - looks like ICH4
+ // was first southbridge to support it.
if (pci_enabled && usb_enabled) {
- usb_uhci_piix3_init(pci_bus, piix3_devfn + 2);
+ usb_uhci_piix3_init(pci_bus, piix3_devfn + 3);
+ usb_ehci_init(pci_bus, piix3_devfn + 2);
}
if (pci_enabled && acpi_enabled) {
@@ -1037,7 +1040,7 @@
i2c_bus *smbus;
/* TODO: Populate SPD eeprom data. */
- smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100,
i8259[9]);
+ smbus = piix4_pm_init(pci_bus, piix3_devfn + 4, 0xb100, i8259[9]);
for (i = 0; i < 8; i++) {
smbus_eeprom_device_init(smbus, 0x50 + i, eeprom_buf + (i
* 256));
}
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