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/*
* This file is part of the libpayload project.
*
* Copyright (C) 2010 Patrick Georgi
*
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 __OHCI_PRIVATE_H
#define __OHCI_PRIVATE_H
#include <pci.h>
#include <usb/usb.h>
#define MASK(startbit, lenbit) (((1<<(lenbit))-1)<<(startbit))
// FIXME: fake
typedef enum { CMD} reg;
enum {
NumberDownstreamPorts = 1<<0,
PowerSwitchingMode = 1<<8,
NoPowerSwitching = 1<<9,
DeviceType = 1<<10,
OverCurrentProtectionMode = 1<<11,
NoOverCurrentProtection = 1<<12,
PowerOnToPowerGoodTime = 1<<24
} HcRhDescriptorAReg;
enum {
NumberDownstreamPortsMask = MASK(0, 8),
PowerOnToPowerGoodTimeMask = MASK(24, 8)
} HcRhDescriptorAMask;
enum {
DeviceRemovable = 1<<0,
PortPowerControlMask = 1<<16
} HcRhDescriptorBReg;
enum {
CurrentConnectStatus = 1<<0,
PortEnableStatus = 1<<1,
PortSuspendStatus = 1<<2,
PortOverCurrentIndicator = 1<<3,
PortResetStatus = 1<<4,
PortPowerStatus = 1<<8,
LowSpeedDeviceAttached = 1<<9,
ConnectStatusChange = 1<<16,
PortEnableStatusChange = 1<<17,
PortSuspendStatusChange = 1<<18,
PortOverCurrentIndicatorChange = 1<<19,
PortResetStatusChange = 1<<20
} HcRhPortStatusRead;
enum {
ClearPortEnable = 1<<0,
SetPortEnable = 1<<1,
SetPortSuspend = 1<<2,
ClearSuspendStatus = 1<<3,
SetPortReset = 1<<4,
SetPortPower = 1<<8,
ClearPortPower = 1<<9,
} HcRhPortStatusSet;
enum {
LocalPowerStatus = 1<<0,
OverCurrentIndicator = 1<<1,
DeviceRemoteWakeupEnable = 1<<15,
LocalPowerStatusChange = 1<<16,
OverCurrentIndicatorChange = 1<<17,
ClearRemoteWakeupEnable = 1<<31
} HcRhStatusReg;
enum {
FrameInterval = 1<<0,
FSLargestDataPacket = 1<<16,
FrameIntervalToggle = 1<<31
} HcFmIntervalOffset;
enum {
FrameIntervalMask = MASK(0, 14),
FSLargestDataPacketMask = MASK(16, 15),
FrameIntervalToggleMask = MASK(31, 1)
} HcFmIntervalMask;
enum {
ControlBulkServiceRatio = 1<<0,
PeriodicListEnable = 1<<2,
IsochronousEnable = 1<<3,
ControlListEnable = 1<<4,
BulkListEnable = 1<<5,
HostControllerFunctionalState = 1<<6,
InterruptRouting = 1<<8,
RemoteWakeupConnected = 1<<9,
RemoteWakeupEnable = 1<<10
} HcControlReg;
enum {
ControlBulkServiceRatioMask = MASK(0, 2),
HostControllerFunctionalStateMask = MASK(6, 2)
} HcControlMask;
enum {
USBReset = 0*HostControllerFunctionalState,
USBResume = 1*HostControllerFunctionalState,
USBOperational = 2*HostControllerFunctionalState,
USBSuspend = 3*HostControllerFunctionalState
};
enum {
HostControllerReset = 1<<0,
ControlListFilled = 1<<1,
BulkListFilled = 1<<2,
OwnershipChangeRequest = 1<<3,
SchedulingOverrunCount = 1<<16
} HcCommandStatusReg;
enum {
SchedulingOverrunCountMask = MASK(16, 2)
} HcCommandStatusMask;
enum {
FrameRemaining = 1<<0,
FrameRemainingToggle = 1<<31
} HcFmRemainingReg;
enum {
SchedulingOverrung = 1<<0,
WritebackDoneHead = 1<<1,
StartofFrame = 1<<2,
ResumeDetected = 1<<3,
UnrecoverableError = 1<<4,
FrameNumberOverflow = 1<<5,
RootHubStatusChange = 1<<6,
OwnershipChange = 1<<30
} HcInterruptStatusReg;
typedef struct {
// Control and Status Partition
volatile u32 HcRevision;
volatile u32 HcControl;
volatile u32 HcCommandStatus;
volatile u32 HcInterruptStatus;
volatile u32 HcInterruptEnable;
volatile u32 HcInterruptDisable;
// Memory Pointer Partition
volatile u32 HcHCCA;
volatile u32 HcPeriodCurrentED;
volatile u32 HcControlHeadED;
volatile u32 HcControlCurrentED;
volatile u32 HcBulkHeadED;
volatile u32 HcBulkCurrentED;
volatile u32 HcDoneHead;
// Frame Counter Partition
volatile u32 HcFmInterval;
volatile u32 HcFmRemaining;
volatile u32 HcFmNumber;
volatile u32 HcPeriodicStart;
volatile u32 HcLSThreshold;
// Root Hub Partition
volatile u32 HcRhDescriptorA;
volatile u32 HcRhDescriptorB;
volatile u32 HcRhStatus;
/* all bits in HcRhPortStatus registers are R/WC, so
_DO NOT_ use |= to set the bits,
this clears the entire state */
volatile u32 HcRhPortStatus[];
} __attribute__ ((packed)) opreg_t;
typedef struct {
u32 HccaInterruptTable[32];
u16 HccaFrameNumber;
u16 HccaPad1;
u32 HccaDoneHead;
u8 reserved[116]; // pad to 256 byte
} __attribute__ ((packed)) hcca_t;
typedef struct ohci {
opreg_t *opreg;
hcca_t *hcca;
usbdev_t *roothub;
} ohci_t;
typedef enum { OHCI_SETUP=0, OHCI_OUT=1, OHCI_IN=2, OHCI_FROM_TD=3 } ohci_pid_t;
typedef volatile struct {
union {
u32 dword0;
struct {
unsigned long function_address:7;
unsigned long endpoint_number:4;
unsigned long direction:2;
unsigned long lowspeed:1;
unsigned long skip:1;
unsigned long format:1;
unsigned long maximum_packet_size:11;
unsigned long:5;
} __attribute__ ((packed));
};
u32 tail_pointer;
union {
u32 head_pointer;
struct {
unsigned long halted:1;
unsigned long toggle:1;
unsigned long:30;
} __attribute__ ((packed));
};
u32 next_ed;
} __attribute__ ((packed)) ed_t;
typedef volatile struct {
union {
u32 dword0;
struct {
unsigned long:18;
unsigned long buffer_rounding:1;
unsigned long direction:2;
unsigned long delay_interrupt:3;
unsigned long toggle:1;
unsigned long toggle_from_td:1;
unsigned long error_count:2;
unsigned long condition_code:4;
} __attribute__ ((packed));
};
u32 current_buffer_pointer;
u32 next_td;
u32 buffer_end;
} __attribute__ ((packed)) td_t;
#define OHCI_INST(controller) ((ohci_t*)((controller)->instance))
#endif
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