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https://github.com/reactos/reactos.git
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219 lines
7.8 KiB
C
219 lines
7.8 KiB
C
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#define UHCI_FRAME_LIST_MAX_ENTRIES 1024 // Number of frames in Frame List
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#define UHCI_NUM_ROOT_HUB_PORTS 2
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/* UHCI HC I/O Registers offset (PUSHORT) */
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#define UHCI_USBCMD 0 // USB Command R/W
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#define UHCI_USBSTS 1 // USB Status R/WC
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#define UHCI_USBINTR 2 // USB Interrupt Enable R/W
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#define UHCI_FRNUM 3 // Frame Number R/W WORD writeable only
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#define UHCI_FRBASEADD 4 // Frame List Base Address R/W // 32 bit
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#define UHCI_SOFMOD 6 // Start Of Frame Modify R/W // 8 bit
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#define UHCI_PORTSC1 8 // Port 1 Status/Control R/WC WORD writeable only
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#define UHCI_PORTSC2 9 // Port 2 Status/Control R/WC WORD writeable only
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/* PCI Legacy Support */
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#define PCI_LEGSUP 0xC0 // Legacy Support register offset. R/WC
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#define PCI_LEGSUP_USBPIRQDEN 0x2000
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#define PCI_LEGSUP_CLEAR_SMI 0x8F00
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/* LEGSUP Legacy support register (PCI Configuration - Function 2) */
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typedef union _UHCI_PCI_LEGSUP {
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struct {
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USHORT Smi60Read : 1; // (60REN) Trap/SMI On 60h Read Enable. R/W.
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USHORT Smi60Write : 1; // (60WEN) Trap/SMI On 60h Write Enable. R/W.
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USHORT Smi64Read : 1; // (64REN) Trap/SMI On 64h Read Enable. R/W.
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USHORT Smi64Write : 1; // (64WEN) Trap/SMI On 64h Write Enable. R/W.
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USHORT SmiIrq : 1; // (USBSMIEN) Trap/SMI ON IRQ Enable. R/W.
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USHORT A20Gate : 1; // (A20PTEN) A20Gate Pass Through Enable. R/W.
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USHORT PassThroughStatus : 1; // (PSS) Pass Through Status. RO.
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USHORT SmiEndPassThrough : 1; // (SMIEPTE) SMI At End Of Pass Through Enable. R/W.
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USHORT TrapBy60ReadStatus : 1; // (TBY60R) Trap By 60h Read Status. R/WC.
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USHORT TrapBy60WriteStatus : 1; // (TBY60W) Trap By 60h Write Status. R/WC.
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USHORT TrapBy64ReadStatus : 1; // (TBY64R) Trap By 64h Read Status. R/WC.
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USHORT TrapBy64WriteStatus : 1; // (TBY64W) Trap By 64h Write Status. R/WC.
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USHORT UsbIrqStatus : 1; // (USBIRQS) USB IRQ Status. RO.
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USHORT UsbPIRQ : 1; // (USBPIRQDEN) USB PIRQ Enable. R/W.
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USHORT Reserved : 1;
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USHORT EndA20GateStatus : 1; // (A20PTS) End OF A20GATE Pass Through Status. R/WC.
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};
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USHORT AsUSHORT;
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} UHCI_PCI_LEGSUP;
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C_ASSERT(sizeof(UHCI_PCI_LEGSUP) == sizeof(USHORT));
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/* USBCMD Command register */
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typedef union _UHCI_USB_COMMAND {
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struct {
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USHORT Run : 1;
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USHORT HcReset : 1;
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USHORT GlobalReset : 1;
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USHORT GlobalSuspend : 1;
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USHORT GlobalResume : 1; // Force Global Resume
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USHORT SoftwareDebug : 1; // 0 - Normal Mode, 1 - Debug mode
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USHORT ConfigureFlag : 1; // no effect on the hardware
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USHORT MaxPacket : 1; // 0 = 32, 1 = 64
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USHORT Reserved : 8;
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};
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USHORT AsUSHORT;
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} UHCI_USB_COMMAND;
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C_ASSERT(sizeof(UHCI_USB_COMMAND) == sizeof(USHORT));
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/* USBSTS Status register */
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#define UHCI_USB_STATUS_MASK 0x3F
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typedef union _UHCI_USB_STATUS {
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struct {
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USHORT Interrupt : 1; // due to IOC (Interrupt On Complete)
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USHORT ErrorInterrupt : 1; // due to error
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USHORT ResumeDetect : 1;
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USHORT HostSystemError : 1; // PCI problems
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USHORT HcProcessError : 1; // Schedule is buggy
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USHORT HcHalted : 1;
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USHORT Reserved : 10;
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};
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USHORT AsUSHORT;
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} UHCI_USB_STATUS;
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C_ASSERT(sizeof(UHCI_USB_STATUS) == sizeof(USHORT));
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/* USBINTR Interrupt enable register */
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typedef union _UHCI_INTERRUPT_ENABLE {
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struct {
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USHORT TimeoutCRC : 1; // Timeout/CRC error enable
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USHORT ResumeInterrupt : 1;
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USHORT InterruptOnComplete : 1;
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USHORT ShortPacket : 1;
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USHORT Reserved : 12;
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};
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USHORT AsUSHORT;
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} UHCI_INTERRUPT_ENABLE;
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C_ASSERT(sizeof(UHCI_INTERRUPT_ENABLE) == sizeof(USHORT));
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/* FRNUM Frame Number register */
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#define UHCI_FRNUM_FRAME_MASK 0x7FF
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#define UHCI_FRNUM_INDEX_MASK 0x3FF
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#define UHCI_FRNUM_OVERFLOW_LIST 0x400
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/* PORTSC(1|2) USB port status and control registers */
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typedef union _UHCI_PORT_STATUS_CONTROL {
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struct {
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USHORT CurrentConnectStatus : 1;
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USHORT ConnectStatusChange : 1;
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USHORT PortEnabledDisabled : 1;
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USHORT PortEnableDisableChange : 1;
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USHORT LineStatus : 2; // D+ and D-
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USHORT ResumeDetect : 1;
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USHORT Reserved1 : 1; // always 1
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USHORT LowSpeedDevice : 1; // LS device Attached
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USHORT PortReset : 1;
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USHORT Reserved2 : 2; // Intel use it (not UHCI 1.1d spec)
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USHORT Suspend : 1;
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USHORT Reserved3 : 3; // write zeroes
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};
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USHORT AsUSHORT;
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} UHCI_PORT_STATUS_CONTROL;
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C_ASSERT(sizeof(UHCI_PORT_STATUS_CONTROL) == sizeof(USHORT));
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typedef struct _UHCI_HW_REGISTERS {
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UHCI_USB_COMMAND HcCommand; // R/W
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UHCI_USB_STATUS HcStatus; // R/WC
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UHCI_INTERRUPT_ENABLE HcInterruptEnable; // R/W
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USHORT FrameNumber; // R/W WORD writeable only
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ULONG FrameAddress; // R/W
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UCHAR SOF_Modify; // R/W
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UCHAR Reserved[3];
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UHCI_PORT_STATUS_CONTROL PortControl[UHCI_NUM_ROOT_HUB_PORTS]; // R/WC WORD writeable only
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} UHCI_HW_REGISTERS, *PUHCI_HW_REGISTERS;
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/* Transfer Descriptor (TD) */
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#define UHCI_TD_STS_ACTIVE (1 << 7)
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#define UHCI_TD_STS_STALLED (1 << 6)
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#define UHCI_TD_STS_DATA_BUFFER_ERROR (1 << 5)
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#define UHCI_TD_STS_BABBLE_DETECTED (1 << 4)
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#define UHCI_TD_STS_NAK_RECEIVED (1 << 3)
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#define UHCI_TD_STS_TIMEOUT_CRC_ERROR (1 << 2)
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#define UHCI_TD_STS_BITSTUFF_ERROR (1 << 1)
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//#define UHCI_TD_STS_Reserved (1 << 0)
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#define UHCI_TD_VALID_LENGTH 0x4FF
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#define UHCI_TD_LENGTH_INVALID 0x7FE
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#define UHCI_TD_LENGTH_NULL 0x7FF
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typedef union _UHCI_CONTROL_STATUS {
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struct {
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ULONG ActualLength : 11; // encoded as n - 1
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ULONG Reserved1 : 5;
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ULONG Status : 8; // UHCI_TD_STS_ xxx
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ULONG InterruptOnComplete : 1;
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ULONG IsochronousType : 1;
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ULONG LowSpeedDevice : 1;
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ULONG ErrorCounter : 2;
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ULONG ShortPacketDetect : 1;
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ULONG Reserved2 : 2;
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};
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ULONG AsULONG;
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} UHCI_CONTROL_STATUS;
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C_ASSERT(sizeof(UHCI_CONTROL_STATUS) == sizeof(ULONG));
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#define UHCI_TD_PID_IN 0x69
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#define UHCI_TD_PID_OUT 0xE1
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#define UHCI_TD_PID_SETUP 0x2D
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#define UHCI_TD_PID_DATA0 0
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#define UHCI_TD_PID_DATA1 1
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typedef union _UHCI_TD_TOKEN {
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struct {
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ULONG PIDCode : 8;
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ULONG DeviceAddress : 7;
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ULONG Endpoint : 4;
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ULONG DataToggle : 1;
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ULONG Reserved : 1;
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ULONG MaximumLength : 11;
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};
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ULONG AsULONG;
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} UHCI_TD_TOKEN;
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C_ASSERT(sizeof(UHCI_TD_TOKEN) == sizeof(ULONG));
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#define UHCI_TD_LINK_PTR_VALID (0 << 0)
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#define UHCI_TD_LINK_PTR_TERMINATE (1 << 0)
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#define UHCI_TD_LINK_PTR_TD (0 << 1)
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#define UHCI_TD_LINK_PTR_QH (1 << 1)
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#define UHCI_TD_LINK_PTR_BREADTH_FIRST (0 << 2)
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#define UHCI_TD_LINK_PTR_DEPTH_FIRST (1 << 2)
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#define UHCI_TD_LINK_POINTER_MASK 0xFFFFFFF0
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typedef struct _UHCI_TD { // Transfer Descriptors always aligned on 16-byte boundaries
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ULONG NextElement;
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UHCI_CONTROL_STATUS ControlStatus;
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UHCI_TD_TOKEN Token;
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ULONG Buffer;
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} UHCI_TD, *PUHCI_TD;
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C_ASSERT(sizeof(UHCI_TD) == 16);
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/* Queue Header (QH) */
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#define UHCI_QH_HEAD_LINK_PTR_VALID (0 << 0)
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#define UHCI_QH_HEAD_LINK_PTR_TERMINATE (1 << 0)
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#define UHCI_QH_HEAD_LINK_PTR_TD (0 << 1)
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#define UHCI_QH_HEAD_LINK_PTR_QH (1 << 1)
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#define UHCI_QH_HEAD_LINK_POINTER_MASK 0xFFFFFFF0
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#define UHCI_QH_ELEMENT_LINK_PTR_VALID (0 << 0)
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#define UHCI_QH_ELEMENT_LINK_PTR_TERMINATE (1 << 0)
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#define UHCI_QH_ELEMENT_LINK_PTR_TD (0 << 1)
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#define UHCI_QH_ELEMENT_LINK_PTR_QH (1 << 1)
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#define UHCI_QH_ELEMENT_LINK_POINTER_MASK 0xFFFFFFF0
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typedef struct _UHCI_QH { // Queue Heads must be aligned on a 16-byte boundary
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ULONG NextQH;
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ULONG NextElement;
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} UHCI_QH, *PUHCI_QH;
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C_ASSERT(sizeof(UHCI_QH) == 8);
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