reactos/drivers/usb/nt4compat/usbdriver/ohci.h

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/*
* Copyright (c) 2007 by Aleksey Bragin
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef __OHCI_H__
#define __OHCI_H__
#define OHCI_DEVICE_NAME "\\Device\\OHCI"
#define OHCI_DOS_DEVICE_NAME "\\DosDevices\\OHCI"
/* Host Controller Operational Registers */
#define OHCI_REVISION 0x0
#define OHCI_CONTROL 0x4
#define OHCI_CMDSTATUS 0x8
#define OHCI_INTRSTATUS 0xc
#define OHCI_INTRENABLE 0x10
#define OHCI_INTRDISABLE 0x14
/* OHCI CONTROL AND STATUS REGISTER MASKS */
/*
* HcControl (control) register masks
*/
#define OHCI_CTRL_CBSR (3 << 0) /* control/bulk service ratio */
#define OHCI_CTRL_PLE (1 << 2) /* periodic list enable */
#define OHCI_CTRL_IE (1 << 3) /* isochronous enable */
#define OHCI_CTRL_CLE (1 << 4) /* control list enable */
#define OHCI_CTRL_BLE (1 << 5) /* bulk list enable */
#define OHCI_CTRL_HCFS (3 << 6) /* host controller functional state */
#define OHCI_CTRL_IR (1 << 8) /* interrupt routing */
#define OHCI_CTRL_RWC (1 << 9) /* remote wakeup connected */
#define OHCI_CTRL_RWE (1 << 10) /* remote wakeup enable */
/* pre-shifted values for HCFS */
# define OHCI_USB_RESET (0 << 6)
# define OHCI_USB_RESUME (1 << 6)
# define OHCI_USB_OPER (2 << 6)
# define OHCI_USB_SUSPEND (3 << 6)
/*
* HcCommandStatus (cmdstatus) register masks
*/
#define OHCI_HCR (1 << 0) /* host controller reset */
#define OHCI_CLF (1 << 1) /* control list filled */
#define OHCI_BLF (1 << 2) /* bulk list filled */
#define OHCI_OCR (1 << 3) /* ownership change request */
#define OHCI_SOC (3 << 16) /* scheduling overrun count */
/*
* masks used with interrupt registers:
* HcInterruptStatus (intrstatus)
* HcInterruptEnable (intrenable)
* HcInterruptDisable (intrdisable)
*/
#define OHCI_INTR_SO (1 << 0) /* scheduling overrun */
#define OHCI_INTR_WDH (1 << 1) /* writeback of done_head */
#define OHCI_INTR_SF (1 << 2) /* start frame */
#define OHCI_INTR_RD (1 << 3) /* resume detect */
#define OHCI_INTR_UE (1 << 4) /* unrecoverable error */
#define OHCI_INTR_FNO (1 << 5) /* frame number overflow */
#define OHCI_INTR_RHSC (1 << 6) /* root hub status change */
#define OHCI_INTR_OC (1 << 30) /* ownership change */
#define OHCI_INTR_MIE (1 << 31) /* master interrupt enable */
/* OHCI ROOT HUB REGISTER MASKS */
/* roothub.portstatus [i] bits */
#define RH_PS_CCS 0x00000001 /* current connect status */
#define RH_PS_PES 0x00000002 /* port enable status*/
#define RH_PS_PSS 0x00000004 /* port suspend status */
#define RH_PS_POCI 0x00000008 /* port over current indicator */
#define RH_PS_PRS 0x00000010 /* port reset status */
#define RH_PS_PPS 0x00000100 /* port power status */
#define RH_PS_LSDA 0x00000200 /* low speed device attached */
#define RH_PS_CSC 0x00010000 /* connect status change */
#define RH_PS_PESC 0x00020000 /* port enable status change */
#define RH_PS_PSSC 0x00040000 /* port suspend status change */
#define RH_PS_OCIC 0x00080000 /* over current indicator change */
#define RH_PS_PRSC 0x00100000 /* port reset status change */
/* roothub.status bits */
#define RH_HS_LPS 0x00000001 /* local power status */
#define RH_HS_OCI 0x00000002 /* over current indicator */
#define RH_HS_DRWE 0x00008000 /* device remote wakeup enable */
#define RH_HS_LPSC 0x00010000 /* local power status change */
#define RH_HS_OCIC 0x00020000 /* over current indicator change */
#define RH_HS_CRWE 0x80000000 /* clear remote wakeup enable */
/* roothub.b masks */
#define RH_B_DR 0x0000ffff /* device removable flags */
#define RH_B_PPCM 0xffff0000 /* port power control mask */
/* roothub.a masks */
#define RH_A_NDP (0xff << 0) /* number of downstream ports */
#define RH_A_PSM (1 << 8) /* power switching mode */
#define RH_A_NPS (1 << 9) /* no power switching */
#define RH_A_DT (1 << 10) /* device type (mbz) */
#define RH_A_OCPM (1 << 11) /* over current protection mode */
#define RH_A_NOCP (1 << 12) /* no over current protection */
#define RH_A_POTPGT (0xff << 24) /* power on to power good time */
/*
* OHCI Endpoint Descriptor (ED) ... holds TD queue
* See OHCI spec, section 4.2
*
* This is a "Queue Head" for those transfers, which is why
* both EHCI and UHCI call similar structures a "QH".
*/
typedef struct _OHCI_ED {
/* first fields are hardware-specified */
ULONG hwINFO; /* endpoint config bitmap */
/* info bits defined by hcd */
#define ED_DEQUEUE (1 << 27)
/* info bits defined by the hardware */
#define ED_ISO (1 << 15)
#define ED_SKIP (1 << 14)
#define ED_LOWSPEED (1 << 13)
#define ED_OUT (0x01 << 11)
#define ED_IN (0x02 << 11)
ULONG hwTailP; /* tail of TD list */
ULONG hwHeadP; /* head of TD list (hc r/w) */
#define ED_C (0x02) /* toggle carry */
#define ED_H (0x01) /* halted */
ULONG hwNextED; /* next ED in list */
/* rest are purely for the driver's use */
#if 0
dma_addr_t dma; /* addr of ED */
struct _OHCI_TD *dummy; /* next TD to activate */
/* host's view of schedule */
struct _OHCI_ED *ed_next; /* on schedule or rm_list */
struct _OHCI_ED *ed_prev; /* for non-interrupt EDs */
struct list_head td_list; /* "shadow list" of our TDs */
/* create --> IDLE --> OPER --> ... --> IDLE --> destroy
* usually: OPER --> UNLINK --> (IDLE | OPER) --> ...
*/
UCHAR state; /* ED_{IDLE,UNLINK,OPER} */
#define ED_IDLE 0x00 /* NOT linked to HC */
#define ED_UNLINK 0x01 /* being unlinked from hc */
#define ED_OPER 0x02 /* IS linked to hc */
UCHAR type; /* PIPE_{BULK,...} */
/* periodic scheduling params (for intr and iso) */
UCHAR branch;
USHORT interval;
USHORT load;
USHORT last_iso; /* iso only */
/* HC may see EDs on rm_list until next frame (frame_no == tick) */
USHORT tick;
#endif
} OHCI_ED, *POHCI_ED;
#define ED_MASK ((u32)~0x0f) /* strip hw status in low addr bits */
/*
* OHCI Transfer Descriptor (TD) ... one per transfer segment
* See OHCI spec, sections 4.3.1 (general = control/bulk/interrupt)
* and 4.3.2 (iso)
*/
typedef struct _OHCI_TD {
/* first fields are hardware-specified */
ULONG hwINFO; /* transfer info bitmask */
/* hwINFO bits for both general and iso tds: */
#define TD_CC 0xf0000000 /* condition code */
#define TD_CC_GET(td_p) ((td_p >>28) & 0x0f)
//#define TD_CC_SET(td_p, cc) (td_p) = ((td_p) & 0x0fffffff) | (((cc) & 0x0f) << 28)
#define TD_DI 0x00E00000 /* frames before interrupt */
#define TD_DI_SET(X) (((X) & 0x07)<< 21)
/* these two bits are available for definition/use by HCDs in both
* general and iso tds ... others are available for only one type
*/
#define TD_DONE 0x00020000 /* retired to donelist */
#define TD_ISO 0x00010000 /* copy of ED_ISO */
/* hwINFO bits for general tds: */
#define TD_EC 0x0C000000 /* error count */
#define TD_T 0x03000000 /* data toggle state */
#define TD_T_DATA0 0x02000000 /* DATA0 */
#define TD_T_DATA1 0x03000000 /* DATA1 */
#define TD_T_TOGGLE 0x00000000 /* uses ED_C */
#define TD_DP 0x00180000 /* direction/pid */
#define TD_DP_SETUP 0x00000000 /* SETUP pid */
#define TD_DP_IN 0x00100000 /* IN pid */
#define TD_DP_OUT 0x00080000 /* OUT pid */
/* 0x00180000 rsvd */
#define TD_R 0x00040000 /* round: short packets OK? */
/* (no hwINFO #defines yet for iso tds) */
ULONG hwCBP; /* Current Buffer Pointer (or 0) */
ULONG hwNextTD; /* Next TD Pointer */
ULONG hwBE; /* Memory Buffer End Pointer */
/* PSW is only for ISO. Only 1 PSW entry is used, but on
* big-endian PPC hardware that's the second entry.
*/
#define MAXPSW 2
USHORT hwPSW [MAXPSW];
/* rest are purely for the driver's use */
#if 0
UCHAR index;
struct ed *ed;
struct td *td_hash; /* dma-->td hashtable */
struct td *next_dl_td;
struct urb *urb;
dma_addr_t td_dma; /* addr of this TD */
dma_addr_t data_dma; /* addr of data it points to */
struct list_head td_list; /* "shadow list", TDs on same ED */
#endif
} OHCI_TD, *POHCI_TD;
/*
* The HCCA (Host Controller Communications Area) is a 256 byte
* structure defined section 4.4.1 of the OHCI spec. The HC is
* told the base address of it. It must be 256-byte aligned.
*/
typedef struct _OHCI_HCCA
{
#define NUM_INTS 32
ULONG int_table [NUM_INTS]; /* periodic schedule */
/*
* OHCI defines u16 frame_no, followed by u16 zero pad.
* Since some processors can't do 16 bit bus accesses,
* portable access must be a 32 bits wide.
*/
ULONG frame_no; /* current frame number */
ULONG done_head; /* info returned for an interrupt */
UCHAR reserved_for_hc [116];
UCHAR what [4]; /* spec only identifies 252 bytes :) */
} OHCI_HCCA, *POHCI_HCCA;
/*
* This is the structure of the OHCI controller's memory mapped I/O region.
* You must use readl() and writel() (in <asm/io.h>) to access these fields!!
* Layout is in section 7 (and appendix B) of the spec.
*/
typedef struct _OHCI_REGS
{
/* control and status registers (section 7.1) */
ULONG revision;
ULONG control;
ULONG cmdstatus;
ULONG intrstatus;
ULONG intrenable;
ULONG intrdisable;
/* memory pointers (section 7.2) */
ULONG hcca;
ULONG ed_periodcurrent;
ULONG ed_controlhead;
ULONG ed_controlcurrent;
ULONG ed_bulkhead;
ULONG ed_bulkcurrent;
ULONG donehead;
/* frame counters (section 7.3) */
ULONG fminterval;
ULONG fmremaining;
ULONG fmnumber;
ULONG periodicstart;
ULONG lsthresh;
/* Root hub ports (section 7.4) */
struct ohci_roothub_regs {
ULONG a;
ULONG b;
ULONG status;
#define MAX_ROOT_PORTS 15 /* maximum OHCI root hub ports (RH_A_NDP) */
ULONG portstatus [MAX_ROOT_PORTS];
} roothub;
/* and optional "legacy support" registers (appendix B) at 0x0100 */
} OHCI_REGS, *POHCI_REGS;
typedef struct _OHCI_DEV
{
HCD hcd_interf;
PHYSICAL_ADDRESS ohci_reg_base; // io space
BOOLEAN port_mapped;
PBYTE port_base; // note: added by ehci_caps.length, operational regs base addr, not the actural base
struct _OHCI_REGS *regs;
struct _OHCI_HCCA *hcca;
PVOID td_cache;
PVOID ed_cache;
PHYSICAL_ADDRESS hcca_logic_addr;
PHYSICAL_ADDRESS td_logic_addr;
PHYSICAL_ADDRESS ed_logic_addr;
USHORT num_ports;
LIST_HEAD urb_list; // active urb-list
//
//for iso and int bandwidth claim, bandwidth schedule
//
KSPIN_LOCK pending_endp_list_lock; //lock to access the following two
LIST_HEAD pending_endp_list;
UHCI_PENDING_ENDP_POOL pending_endp_pool;
KTIMER reset_timer; //used to reset the host controller
struct _OHCI_DEVICE_EXTENSION *pdev_ext;
PUSB_DEV root_hub; //root hub
} OHCI_DEV, *POHCI_DEV;
typedef struct _OHCI_DEVICE_EXTENSION
{
DEVEXT_HEADER dev_ext_hdr;
PDEVICE_OBJECT pdev_obj;
PDRIVER_OBJECT pdrvr_obj;
POHCI_DEV ohci;
//device resources
PADAPTER_OBJECT padapter;
ULONG map_regs;
PCM_RESOURCE_LIST res_list;
ULONG pci_addr; // bus number | slot number | funciton number
UHCI_INTERRUPT res_interrupt;
union
{
UHCI_PORT res_port;
EHCI_MEMORY res_memory;
};
PKINTERRUPT ohci_int;
KDPC ohci_dpc;
} OHCI_DEVICE_EXTENSION, *POHCI_DEVICE_EXTENSION;
#define ohci_from_hcd( hCD ) ( struct_ptr( ( hCD ), OHCI_DEV, hcd_interf ) )
#endif /* __OHCI_H__ */