/* * Copyright 2004-2006, Haiku Inc. All rights reserved. * Distributed under the terms of the MIT License. * * Authors: * Michael Lotz * Niels S. Reedijk */ #ifndef UHCI_HARDWARE_H #define UHCI_HARDWARE_H /************************************************************ * The Registers * ************************************************************/ // R/W -- Read/Write // R/WC -- Read/Write Clear // ** -- Only writable with words! // PCI register #define PCI_LEGSUP 0xC0 #define PCI_LEGSUP_USBPIRQDEN 0x2000 #define PCI_LEGSUP_CLEAR_SMI 0x8f00 // Registers #define UHCI_USBCMD 0x00 // USB Command - word - R/W #define UHCI_USBSTS 0x02 // USB Status - word - R/WC #define UHCI_USBINTR 0x04 // USB Interrupt Enable - word - R/W #define UHCI_FRNUM 0x06 // Frame number - word - R/W** #define UHCI_FRBASEADD 0x08 // Frame List BAse Address - dword - R/W #define UHCI_SOFMOD 0x0c // Start of Frame Modify - byte - R/W #define UHCI_PORTSC1 0x10 // Port 1 Status/Control - word - R/WC** #define UHCI_PORTSC2 0x12 // Port 2 Status/Control - word - R/WC** // USBCMD #define UHCI_USBCMD_RS 0x01 // Run/Stop #define UHCI_USBCMD_HCRESET 0x02 // Host Controller Reset #define UHCI_USBCMD_GRESET 0x04 // Global Reset #define UHCI_USBCMD_EGSM 0x08 // Enter Global Suspensd mode #define UHCI_USBCMD_FGR 0x10 // Force Global resume #define UHCI_USBCMD_SWDBG 0x20 // Software Debug #define UHCI_USBCMD_CF 0x40 // Configure Flag #define UHCI_USBCMD_MAXP 0x80 // Max packet //USBSTS #define UHCI_USBSTS_USBINT 0x01 // USB interrupt #define UHCI_USBSTS_ERRINT 0x02 // USB error interrupt #define UHCI_USBSTS_RESDET 0x04 // Resume Detect #define UHCI_USBSTS_HOSTERR 0x08 // Host System Error #define UHCI_USBSTS_HCPRERR 0x10 // Host Controller Process error #define UHCI_USBSTS_HCHALT 0x20 // HCHalted //USBINTR #define UHCI_USBINTR_CRC 0x01 // Timeout/ CRC interrupt enable #define UHCI_USBINTR_RESUME 0x02 // Resume interrupt enable #define UHCI_USBINTR_IOC 0x04 // Interrupt on complete enable #define UHCI_USBINTR_SHORT 0x08 // Short packet interrupt enable //PORTSC #define UHCI_PORTSC_CURSTAT 0x0001 // Current connect status #define UHCI_PORTSC_STATCHA 0x0002 // Current connect status change #define UHCI_PORTSC_ENABLED 0x0004 // Port enabled/disabled #define UHCI_PORTSC_ENABCHA 0x0008 // Change in enabled/disabled #define UHCI_PORTSC_LINE_0 0x0010 // The status of D+ #define UHCI_PORTSC_LINE_1 0x0020 // The status of D- #define UHCI_PORTSC_RESUME 0x0040 // Something with the suspend state ??? #define UHCI_PORTSC_LOWSPEED 0x0100 // Low speed device attached? #define UHCI_PORTSC_RESET 0x0200 // Port is in reset #define UHCI_PORTSC_SUSPEND 0x1000 // Set port in suspend state #define UHCI_PORTSC_DATAMASK 0x13f5 // Mask that excludes the change bits /************************************************************ * Hardware structs * ************************************************************/ // Framelist flags #define FRAMELIST_TERMINATE 0x1 #define FRAMELIST_NEXT_IS_QH 0x2 // Number of frames #define NUMBER_OF_FRAMES 1024 #define MAX_AVAILABLE_BANDWIDTH 900 // Microseconds // Represents a Transfer Descriptor (TD) typedef struct { // Hardware part uint32 link_phy; // Link to the next TD/QH uint32 status; // Status field uint32 token; // Contains the packet header (where it needs to be sent) uint32 buffer_phy; // A pointer to the buffer with the actual packet // Software part uint32 this_phy; // A physical pointer to this address void *link_log; // Pointer to the next logical TD/QT void *buffer_log; // Pointer to the logical buffer size_t buffer_size; // Size of the buffer } uhci_td; #define TD_NEXT_IS_QH 0x02 // Control and Status #define TD_CONTROL_SPD (1 << 29) #define TD_CONTROL_3_ERRORS (3 << 27) #define TD_CONTROL_LOWSPEED (1 << 26) #define TD_CONTROL_ISOCHRONOUS (1 << 25) #define TD_CONTROL_IOC (1 << 24) #define TD_STATUS_ACTIVE (1 << 23) #define TD_STATUS_ERROR_STALLED (1 << 22) #define TD_STATUS_ERROR_BUFFER (1 << 21) #define TD_STATUS_ERROR_BABBLE (1 << 20) #define TD_STATUS_ERROR_NAK (1 << 19) #define TD_STATUS_ERROR_CRC (1 << 18) #define TD_STATUS_ERROR_TIMEOUT (1 << 18) #define TD_STATUS_ERROR_BITSTUFF (1 << 17) #define TD_STATUS_ACTLEN_MASK 0x07ff #define TD_STATUS_ACTLEN_NULL 0x07ff // Token #define TD_TOKEN_MAXLEN_SHIFT 21 #define TD_TOKEN_NULL_DATA (0x07ff << TD_TOKEN_MAXLEN_SHIFT) #define TD_TOKEN_DATA_TOGGLE_SHIFT 19 #define TD_TOKEN_DATA1 (1 << TD_TOKEN_DATA_TOGGLE_SHIFT) #define TD_TOKEN_SETUP 0x2d #define TD_TOKEN_IN 0x69 #define TD_TOKEN_OUT 0xe1 #define TD_TOKEN_ENDPTADDR_SHIFT 15 #define TD_TOKEN_DEVADDR_SHIFT 8 #define TD_DEPTH_FIRST 0x04 #define TD_TERMINATE 0x01 #define TD_ERROR_MASK 0x440000 #define TD_ERROR_COUNT_SHIFT 27 #define TD_ERROR_COUNT_MASK 0x03 #define TD_LINK_MASK 0xfffffff0 static inline size_t uhci_td_maximum_length(uhci_td *descriptor) { size_t length = (descriptor->token >> TD_TOKEN_MAXLEN_SHIFT) + 1; if (length == TD_STATUS_ACTLEN_NULL + 1) return 0; return length; } static inline size_t uhci_td_actual_length(uhci_td *descriptor) { size_t length = (descriptor->status & TD_STATUS_ACTLEN_MASK) + 1; if (length == TD_STATUS_ACTLEN_NULL + 1) return 0; return length; } // Represents a Queue Head (QH) typedef struct { // Hardware part uint32 link_phy; // Link to the next TD/QH uint32 element_phy; // Pointer to the first element in the queue // Software part uint32 this_phy; // The physical pointer to this address void *link_log; // Pointer to the next logical TD/QH } uhci_qh; #define QH_TERMINATE 0x01 #define QH_NEXT_IS_QH 0x02 #define QH_LINK_MASK 0xfffffff0 #endif