d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
800d362b5d
freebsd-dev/sys/dev/usb/ohcireg.h
Ian Dowse 368030a87a Use the limited scatter-gather capabilities of ehci, ohci and uhci 
host controllers to avoid the need to allocate any multi-page
physically contiguous memory blocks. This makes it possible to use
USB devices reliably on low-memory systems or when memory is too
fragmented for contiguous allocations to succeed.

The USB subsystem now uses bus_dmamap_load() directly on the buffers
supplied by USB peripheral drivers, so this also avoids having to
copy data back and forth before and after transfers. The ehci and
ohci controllers support scatter/gather as long as the buffer is
contiguous in the virtual address space. For uhci the hardware
cannot handle a physical address discontinuity within a USB packet,
so it is necessary to copy small memory fragments at times.
2006-05-28 05:27:09 +00:00

251 lines
9.7 KiB
C
Raw Blame History

/* $NetBSD: ohcireg.h,v 1.17 2000/04/01 09:27:35 augustss Exp $ */
/* $FreeBSD$ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson (lennart@augustsson.net) at
* Carlstedt Research & Technology.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _DEV_PCI_OHCIREG_H_
#define _DEV_PCI_OHCIREG_H_
/*** PCI config registers ***/
#define PCI_CBMEM 0x10 /* configuration base memory */
#define PCI_INTERFACE_OHCI 0x10
/*** OHCI registers */
#define OHCI_REVISION 0x00 /* OHCI revision # */
#define OHCI_REV_LO(rev) ((rev)&0xf)
#define OHCI_REV_HI(rev) (((rev)>>4)&0xf)
#define OHCI_REV_LEGACY(rev) ((rev) & 0x100)
#define OHCI_CONTROL 0x04
#define OHCI_CBSR_MASK 0x00000003 /* Control/Bulk Service Ratio */
#define OHCI_RATIO_1_1 0x00000000
#define OHCI_RATIO_1_2 0x00000001
#define OHCI_RATIO_1_3 0x00000002
#define OHCI_RATIO_1_4 0x00000003
#define OHCI_PLE 0x00000004 /* Periodic List Enable */
#define OHCI_IE 0x00000008 /* Isochronous Enable */
#define OHCI_CLE 0x00000010 /* Control List Enable */
#define OHCI_BLE 0x00000020 /* Bulk List Enable */
#define OHCI_HCFS_MASK 0x000000c0 /* HostControllerFunctionalState */
#define OHCI_HCFS_RESET 0x00000000
#define OHCI_HCFS_RESUME 0x00000040
#define OHCI_HCFS_OPERATIONAL 0x00000080
#define OHCI_HCFS_SUSPEND 0x000000c0
#define OHCI_IR 0x00000100 /* Interrupt Routing */
#define OHCI_RWC 0x00000200 /* Remote Wakeup Connected */
#define OHCI_RWE 0x00000400 /* Remote Wakeup Enabled */
#define OHCI_COMMAND_STATUS 0x08
#define OHCI_HCR 0x00000001 /* Host Controller Reset */
#define OHCI_CLF 0x00000002 /* Control List Filled */
#define OHCI_BLF 0x00000004 /* Bulk List Filled */
#define OHCI_OCR 0x00000008 /* Ownership Change Request */
#define OHCI_SOC_MASK 0x00030000 /* Scheduling Overrun Count */
#define OHCI_INTERRUPT_STATUS 0x0c
#define OHCI_SO 0x00000001 /* Scheduling Overrun */
#define OHCI_WDH 0x00000002 /* Writeback Done Head */
#define OHCI_SF 0x00000004 /* Start of Frame */
#define OHCI_RD 0x00000008 /* Resume Detected */
#define OHCI_UE 0x00000010 /* Unrecoverable Error */
#define OHCI_FNO 0x00000020 /* Frame Number Overflow */
#define OHCI_RHSC 0x00000040 /* Root Hub Status Change */
#define OHCI_OC 0x40000000 /* Ownership Change */
#define OHCI_MIE 0x80000000 /* Master Interrupt Enable */
#define OHCI_INTERRUPT_ENABLE 0x10
#define OHCI_INTERRUPT_DISABLE 0x14
#define OHCI_HCCA 0x18
#define OHCI_PERIOD_CURRENT_ED 0x1c
#define OHCI_CONTROL_HEAD_ED 0x20
#define OHCI_CONTROL_CURRENT_ED 0x24
#define OHCI_BULK_HEAD_ED 0x28
#define OHCI_BULK_CURRENT_ED 0x2c
#define OHCI_DONE_HEAD 0x30
#define OHCI_FM_INTERVAL 0x34
#define OHCI_GET_IVAL(s) ((s) & 0x3fff)
#define OHCI_GET_FSMPS(s) (((s) >> 16) & 0x7fff)
#define OHCI_FIT 0x80000000
#define OHCI_FM_REMAINING 0x38
#define OHCI_FM_NUMBER 0x3c
#define OHCI_PERIODIC_START 0x40
#define OHCI_LS_THRESHOLD 0x44
#define OHCI_RH_DESCRIPTOR_A 0x48
#define OHCI_GET_NDP(s) ((s) & 0xff)
#define OHCI_PSM 0x0100 /* Power Switching Mode */
#define OHCI_NPS 0x0200 /* No Power Switching */
#define OHCI_DT 0x0400 /* Device Type */
#define OHCI_OCPM 0x0800 /* Overcurrent Protection Mode */
#define OHCI_NOCP 0x1000 /* No Overcurrent Protection */
#define OHCI_GET_POTPGT(s) ((s) >> 24)
#define OHCI_RH_DESCRIPTOR_B 0x4c
#define OHCI_RH_STATUS 0x50
#define OHCI_LPS 0x00000001 /* Local Power Status */
#define OHCI_OCI 0x00000002 /* OverCurrent Indicator */
#define OHCI_DRWE 0x00008000 /* Device Remote Wakeup Enable */
#define OHCI_LPSC 0x00010000 /* Local Power Status Change */
#define OHCI_CCIC 0x00020000 /* OverCurrent Indicator Change */
#define OHCI_CRWE 0x80000000 /* Clear Remote Wakeup Enable */
#define OHCI_RH_PORT_STATUS(n) (0x50 + (n)*4) /* 1 based indexing */
#define OHCI_LES (OHCI_PLE | OHCI_IE | OHCI_CLE | OHCI_BLE)
#define OHCI_ALL_INTRS (OHCI_SO | OHCI_WDH | OHCI_SF | OHCI_RD | OHCI_UE | \
OHCI_FNO | OHCI_RHSC | OHCI_OC)
#define OHCI_NORMAL_INTRS (OHCI_WDH | OHCI_RD | OHCI_UE | OHCI_RHSC)
#define OHCI_FSMPS(i) (((i-210)*6/7) << 16)
#define OHCI_PERIODIC(i) ((i)*9/10)
typedef u_int32_t ohci_physaddr_t;
#define OHCI_NO_INTRS 32
struct ohci_hcca {
ohci_physaddr_t hcca_interrupt_table[OHCI_NO_INTRS];
u_int32_t hcca_frame_number;
ohci_physaddr_t hcca_done_head;
#define OHCI_DONE_INTRS 1
};
#define OHCI_HCCA_SIZE 256
#define OHCI_HCCA_ALIGN 256
#define OHCI_PAGE_SIZE 0x1000
#define OHCI_PAGE(x) ((x) &~ 0xfff)
#define OHCI_PAGE_OFFSET(x) ((x) & 0xfff)
#define OHCI_PAGE_MASK(x) ((x) & 0xfff)
typedef struct {
u_int32_t ed_flags;
#define OHCI_ED_GET_FA(s) ((s) & 0x7f)
#define OHCI_ED_ADDRMASK 0x0000007f
#define OHCI_ED_SET_FA(s) (s)
#define OHCI_ED_GET_EN(s) (((s) >> 7) & 0xf)
#define OHCI_ED_SET_EN(s) ((s) << 7)
#define OHCI_ED_DIR_MASK 0x00001800
#define OHCI_ED_DIR_TD 0x00000000
#define OHCI_ED_DIR_OUT 0x00000800
#define OHCI_ED_DIR_IN 0x00001000
#define OHCI_ED_SPEED 0x00002000
#define OHCI_ED_SKIP 0x00004000
#define OHCI_ED_FORMAT_GEN 0x00000000
#define OHCI_ED_FORMAT_ISO 0x00008000
#define OHCI_ED_GET_MAXP(s) (((s) >> 16) & 0x07ff)
#define OHCI_ED_SET_MAXP(s) ((s) << 16)
#define OHCI_ED_MAXPMASK (0x7ff << 16)
ohci_physaddr_t ed_tailp;
ohci_physaddr_t ed_headp;
#define OHCI_HALTED 0x00000001
#define OHCI_TOGGLECARRY 0x00000002
#define OHCI_HEADMASK 0xfffffffc
ohci_physaddr_t ed_nexted;
} ohci_ed_t;
/* #define OHCI_ED_SIZE 16 */
#define OHCI_ED_ALIGN 16
typedef struct {
u_int32_t td_flags;
#define OHCI_TD_R 0x00040000 /* Buffer Rounding */
#define OHCI_TD_DP_MASK 0x00180000 /* Direction / PID */
#define OHCI_TD_SETUP 0x00000000
#define OHCI_TD_OUT 0x00080000
#define OHCI_TD_IN 0x00100000
#define OHCI_TD_GET_DI(x) (((x) >> 21) & 7) /* Delay Interrupt */
#define OHCI_TD_SET_DI(x) ((x) << 21)
#define OHCI_TD_NOINTR 0x00e00000
#define OHCI_TD_INTR_MASK 0x00e00000
#define OHCI_TD_TOGGLE_CARRY 0x00000000
#define OHCI_TD_TOGGLE_0 0x02000000
#define OHCI_TD_TOGGLE_1 0x03000000
#define OHCI_TD_TOGGLE_MASK 0x03000000
#define OHCI_TD_GET_EC(x) (((x) >> 26) & 3) /* Error Count */
#define OHCI_TD_GET_CC(x) ((x) >> 28) /* Condition Code */
#define OHCI_TD_NOCC 0xf0000000
ohci_physaddr_t td_cbp; /* Current Buffer Pointer */
ohci_physaddr_t td_nexttd; /* Next TD */
ohci_physaddr_t td_be; /* Buffer End */
} ohci_td_t;
/* #define OHCI_TD_SIZE 16 */
#define OHCI_TD_ALIGN 16
#define OHCI_ITD_NOFFSET 8
typedef struct {
u_int32_t itd_flags;
#define OHCI_ITD_GET_SF(x) ((x) & 0x0000ffff)
#define OHCI_ITD_SET_SF(x) ((x) & 0xffff)
#define OHCI_ITD_GET_DI(x) (((x) >> 21) & 7) /* Delay Interrupt */
#define OHCI_ITD_SET_DI(x) ((x) << 21)
#define OHCI_ITD_NOINTR 0x00e00000
#define OHCI_ITD_GET_FC(x) ((((x) >> 24) & 7)+1) /* Frame Count */
#define OHCI_ITD_SET_FC(x) (((x)-1) << 24)
#define OHCI_ITD_GET_CC(x) ((x) >> 28) /* Condition Code */
#define OHCI_ITD_NOCC 0xf0000000
ohci_physaddr_t itd_bp0; /* Buffer Page 0 */
ohci_physaddr_t itd_nextitd; /* Next ITD */
ohci_physaddr_t itd_be; /* Buffer End */
u_int16_t itd_offset[OHCI_ITD_NOFFSET]; /* Buffer offsets */
#define itd_pswn itd_offset /* Packet Status Word*/
#define OHCI_ITD_PAGE_SELECT 0x00001000
#define OHCI_ITD_MK_OFFS(page, off) \
(0xe000 | ((page) ? OHCI_ITD_PAGE_SELECT : 0) | ((off) & 0xfff))
#define OHCI_ITD_PSW_LENGTH(x) ((x) & 0xfff) /* Transfer length */
#define OHCI_ITD_PSW_GET_CC(x) ((x) >> 12) /* Condition Code */
} ohci_itd_t;
/* #define OHCI_ITD_SIZE 32 */
#define OHCI_ITD_ALIGN 32
#define OHCI_CC_NO_ERROR 0
#define OHCI_CC_CRC 1
#define OHCI_CC_BIT_STUFFING 2
#define OHCI_CC_DATA_TOGGLE_MISMATCH 3
#define OHCI_CC_STALL 4
#define OHCI_CC_DEVICE_NOT_RESPONDING 5
#define OHCI_CC_PID_CHECK_FAILURE 6
#define OHCI_CC_UNEXPECTED_PID 7
#define OHCI_CC_DATA_OVERRUN 8
#define OHCI_CC_DATA_UNDERRUN 9
#define OHCI_CC_BUFFER_OVERRUN 12
#define OHCI_CC_BUFFER_UNDERRUN 13
#define OHCI_CC_NOT_ACCESSED 15
/* Some delay needed when changing certain registers. */
#define OHCI_ENABLE_POWER_DELAY 5
#define OHCI_READ_DESC_DELAY 5
#endif /* _DEV_PCI_OHCIREG_H_ */
Reference in New Issue View Git Blame Copy Permalink