461 lines
12 KiB
C
461 lines
12 KiB
C
/*-
|
|
* Copyright (c) 2003
|
|
* Bill Paul <wpaul@windriver.com>. All rights reserved.
|
|
*
|
|
* 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 Bill Paul.
|
|
* 4. Neither the name of the author nor the names of any co-contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifdef __FreeBSD__
|
|
__FBSDID("$FreeBSD: src/sys/compat/ndis/subr_hal.c,v 1.13.2.3 2005/03/31 04:24:35 wpaul Exp $");
|
|
#endif
|
|
#ifdef __NetBSD__
|
|
__KERNEL_RCSID(0, "$NetBSD: subr_hal.c,v 1.3 2006/03/31 00:03:57 rittera Exp $");
|
|
#endif
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/types.h>
|
|
#include <sys/errno.h>
|
|
|
|
#include <sys/callout.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/lock.h>
|
|
#ifdef __FreeBSD__
|
|
#include <sys/mutex.h>
|
|
#endif
|
|
#include <sys/proc.h>
|
|
#include <sys/sched.h>
|
|
#ifdef __FreeBSD__
|
|
#include <sys/module.h>
|
|
#endif
|
|
|
|
#include <sys/systm.h>
|
|
#ifdef __NetBSD__
|
|
#include <sys/lkm.h>
|
|
#endif
|
|
#ifdef __FreeBSD__
|
|
#include <machine/clock.h>
|
|
#include <machine/bus_memio.h>
|
|
#include <machine/bus_pio.h>
|
|
#endif
|
|
#include <machine/bus.h>
|
|
|
|
#ifdef __FreeBSD__
|
|
#include <sys/bus.h>
|
|
#include <sys/rman.h>
|
|
#endif
|
|
|
|
#include <compat/ndis/pe_var.h>
|
|
#include <compat/ndis/ntoskrnl_var.h>
|
|
#include <compat/ndis/hal_var.h>
|
|
|
|
__stdcall static void KeStallExecutionProcessor(uint32_t);
|
|
__stdcall static void WRITE_PORT_BUFFER_ULONG(uint32_t *,
|
|
uint32_t *, uint32_t);
|
|
__stdcall static void WRITE_PORT_BUFFER_USHORT(uint16_t *,
|
|
uint16_t *, uint32_t);
|
|
__stdcall static void WRITE_PORT_BUFFER_UCHAR(uint8_t *,
|
|
uint8_t *, uint32_t);
|
|
__stdcall static void WRITE_PORT_ULONG(uint32_t *, uint32_t);
|
|
__stdcall static void WRITE_PORT_USHORT(uint16_t *, uint16_t);
|
|
__stdcall static void WRITE_PORT_UCHAR(uint8_t *, uint8_t);
|
|
__stdcall static uint32_t READ_PORT_ULONG(uint32_t *);
|
|
__stdcall static uint16_t READ_PORT_USHORT(uint16_t *);
|
|
__stdcall static uint8_t READ_PORT_UCHAR(uint8_t *);
|
|
__stdcall static void READ_PORT_BUFFER_ULONG(uint32_t *,
|
|
uint32_t *, uint32_t);
|
|
__stdcall static void READ_PORT_BUFFER_USHORT(uint16_t *,
|
|
uint16_t *, uint32_t);
|
|
__stdcall static void READ_PORT_BUFFER_UCHAR(uint8_t *,
|
|
uint8_t *, uint32_t);
|
|
__stdcall static uint64_t KeQueryPerformanceCounter(uint64_t *);
|
|
__stdcall static void dummy (void);
|
|
|
|
extern struct mtx_pool *ndis_mtxpool;
|
|
|
|
int
|
|
hal_libinit()
|
|
{
|
|
image_patch_table *patch;
|
|
|
|
patch = hal_functbl;
|
|
while (patch->ipt_func != NULL) {
|
|
windrv_wrap((funcptr)patch->ipt_func,
|
|
(funcptr *)&patch->ipt_wrap);
|
|
patch++;
|
|
}
|
|
|
|
return(0);
|
|
}
|
|
|
|
int
|
|
hal_libfini()
|
|
{
|
|
image_patch_table *patch;
|
|
|
|
patch = hal_functbl;
|
|
while (patch->ipt_func != NULL) {
|
|
windrv_unwrap(patch->ipt_wrap);
|
|
patch++;
|
|
}
|
|
|
|
return(0);
|
|
}
|
|
|
|
__stdcall static void
|
|
KeStallExecutionProcessor(usecs)
|
|
uint32_t usecs;
|
|
{
|
|
DELAY(usecs);
|
|
return;
|
|
}
|
|
|
|
__stdcall static void
|
|
WRITE_PORT_ULONG(port, val)
|
|
uint32_t *port;
|
|
uint32_t val;
|
|
{
|
|
bus_space_write_4(NDIS_BUS_SPACE_IO, 0x0, (bus_size_t)port, val);
|
|
return;
|
|
}
|
|
|
|
__stdcall static void
|
|
WRITE_PORT_USHORT(port, val)
|
|
uint16_t *port;
|
|
uint16_t val;
|
|
{
|
|
bus_space_write_2(NDIS_BUS_SPACE_IO, 0x0, (bus_size_t)port, val);
|
|
return;
|
|
}
|
|
|
|
__stdcall static void
|
|
WRITE_PORT_UCHAR(port, val)
|
|
uint8_t *port;
|
|
uint8_t val;
|
|
{
|
|
bus_space_write_1(NDIS_BUS_SPACE_IO, 0x0, (bus_size_t)port, val);
|
|
return;
|
|
}
|
|
|
|
__stdcall static void
|
|
WRITE_PORT_BUFFER_ULONG(port, val, cnt)
|
|
uint32_t *port;
|
|
uint32_t *val;
|
|
uint32_t cnt;
|
|
{
|
|
bus_space_write_multi_4(NDIS_BUS_SPACE_IO, 0x0,
|
|
(bus_size_t)port, val, cnt);
|
|
return;
|
|
}
|
|
|
|
__stdcall static void
|
|
WRITE_PORT_BUFFER_USHORT(port, val, cnt)
|
|
uint16_t *port;
|
|
uint16_t *val;
|
|
uint32_t cnt;
|
|
{
|
|
bus_space_write_multi_2(NDIS_BUS_SPACE_IO, 0x0,
|
|
(bus_size_t)port, val, cnt);
|
|
return;
|
|
}
|
|
|
|
__stdcall static void
|
|
WRITE_PORT_BUFFER_UCHAR(port, val, cnt)
|
|
uint8_t *port;
|
|
uint8_t *val;
|
|
uint32_t cnt;
|
|
{
|
|
bus_space_write_multi_1(NDIS_BUS_SPACE_IO, 0x0,
|
|
(bus_size_t)port, val, cnt);
|
|
return;
|
|
}
|
|
|
|
__stdcall static uint16_t
|
|
READ_PORT_USHORT(port)
|
|
uint16_t *port;
|
|
{
|
|
return(bus_space_read_2(NDIS_BUS_SPACE_IO, 0x0, (bus_size_t)port));
|
|
}
|
|
|
|
__stdcall static uint32_t
|
|
READ_PORT_ULONG(port)
|
|
uint32_t *port;
|
|
{
|
|
return(bus_space_read_4(NDIS_BUS_SPACE_IO, 0x0, (bus_size_t)port));
|
|
}
|
|
|
|
__stdcall static uint8_t
|
|
READ_PORT_UCHAR(port)
|
|
uint8_t *port;
|
|
{
|
|
return(bus_space_read_1(NDIS_BUS_SPACE_IO, 0x0, (bus_size_t)port));
|
|
}
|
|
|
|
__stdcall static void
|
|
READ_PORT_BUFFER_ULONG(port, val, cnt)
|
|
uint32_t *port;
|
|
uint32_t *val;
|
|
uint32_t cnt;
|
|
{
|
|
bus_space_read_multi_4(NDIS_BUS_SPACE_IO, 0x0,
|
|
(bus_size_t)port, val, cnt);
|
|
return;
|
|
}
|
|
|
|
__stdcall static void
|
|
READ_PORT_BUFFER_USHORT(port, val, cnt)
|
|
uint16_t *port;
|
|
uint16_t *val;
|
|
uint32_t cnt;
|
|
{
|
|
bus_space_read_multi_2(NDIS_BUS_SPACE_IO, 0x0,
|
|
(bus_size_t)port, val, cnt);
|
|
return;
|
|
}
|
|
|
|
__stdcall static void
|
|
READ_PORT_BUFFER_UCHAR(port, val, cnt)
|
|
uint8_t *port;
|
|
uint8_t *val;
|
|
uint32_t cnt;
|
|
{
|
|
bus_space_read_multi_1(NDIS_BUS_SPACE_IO, 0x0,
|
|
(bus_size_t)port, val, cnt);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* The spinlock implementation in Windows differs from that of FreeBSD.
|
|
* The basic operation of spinlocks involves two steps: 1) spin in a
|
|
* tight loop while trying to acquire a lock, 2) after obtaining the
|
|
* lock, disable preemption. (Note that on uniprocessor systems, you're
|
|
* allowed to skip the first step and just lock out pre-emption, since
|
|
* it's not possible for you to be in contention with another running
|
|
* thread.) Later, you release the lock then re-enable preemption.
|
|
* The difference between Windows and FreeBSD lies in how preemption
|
|
* is disabled. In FreeBSD, it's done using critical_enter(), which on
|
|
* the x86 arch translates to a cli instruction. This masks off all
|
|
* interrupts, and effectively stops the scheduler from ever running
|
|
* so _nothing_ can execute except the current thread. In Windows,
|
|
* preemption is disabled by raising the processor IRQL to DISPATCH_LEVEL.
|
|
* This stops other threads from running, but does _not_ block device
|
|
* interrupts. This means ISRs can still run, and they can make other
|
|
* threads runable, but those other threads won't be able to execute
|
|
* until the current thread lowers the IRQL to something less than
|
|
* DISPATCH_LEVEL.
|
|
*
|
|
* There's another commonly used IRQL in Windows, which is APC_LEVEL.
|
|
* An APC is an Asynchronous Procedure Call, which differs from a DPC
|
|
* (Defered Procedure Call) in that a DPC is queued up to run in
|
|
* another thread, while an APC runs in the thread that scheduled
|
|
* it (similar to a signal handler in a UNIX process). We don't
|
|
* actually support the notion of APCs in FreeBSD, so for now, the
|
|
* only IRQLs we're interested in are DISPATCH_LEVEL and PASSIVE_LEVEL.
|
|
*
|
|
* To simulate DISPATCH_LEVEL, we raise the current thread's priority
|
|
* to PI_REALTIME, which is the highest we can give it. This should,
|
|
* if I understand things correctly, prevent anything except for an
|
|
* interrupt thread from preempting us. PASSIVE_LEVEL is basically
|
|
* everything else.
|
|
*
|
|
* Be aware that, at least on the x86 arch, the Windows spinlock
|
|
* functions are divided up in peculiar ways. The actual spinlock
|
|
* functions are KfAcquireSpinLock() and KfReleaseSpinLock(), and
|
|
* they live in HAL.dll. Meanwhile, KeInitializeSpinLock(),
|
|
* KefAcquireSpinLockAtDpcLevel() and KefReleaseSpinLockFromDpcLevel()
|
|
* live in ntoskrnl.exe. Most Windows source code will call
|
|
* KeAcquireSpinLock() and KeReleaseSpinLock(), but these are just
|
|
* macros that call KfAcquireSpinLock() and KfReleaseSpinLock().
|
|
* KefAcquireSpinLockAtDpcLevel() and KefReleaseSpinLockFromDpcLevel()
|
|
* perform the lock aquisition/release functions without doing the
|
|
* IRQL manipulation, and are used when one is already running at
|
|
* DISPATCH_LEVEL. Make sense? Good.
|
|
*
|
|
* According to the Microsoft documentation, any thread that calls
|
|
* KeAcquireSpinLock() must be running at IRQL <= DISPATCH_LEVEL. If
|
|
* we detect someone trying to acquire a spinlock from DEVICE_LEVEL
|
|
* or HIGH_LEVEL, we panic.
|
|
*/
|
|
|
|
__fastcall uint8_t
|
|
KfAcquireSpinLock(REGARGS1(kspin_lock *lock))
|
|
{
|
|
uint8_t oldirql;
|
|
|
|
/* I am so going to hell for this. */
|
|
if (KeGetCurrentIrql() > DISPATCH_LEVEL)
|
|
panic("IRQL_NOT_LESS_THAN_OR_EQUAL");
|
|
|
|
oldirql = KeRaiseIrql(DISPATCH_LEVEL);
|
|
KeAcquireSpinLockAtDpcLevel(lock);
|
|
|
|
return(oldirql);
|
|
}
|
|
|
|
__fastcall void
|
|
KfReleaseSpinLock(REGARGS2(kspin_lock *lock, uint8_t newirql))
|
|
{
|
|
KeReleaseSpinLockFromDpcLevel(lock);
|
|
KeLowerIrql(newirql);
|
|
|
|
return;
|
|
}
|
|
|
|
__stdcall uint8_t
|
|
KeGetCurrentIrql(void)
|
|
{
|
|
if (AT_DISPATCH_LEVEL(curthread))
|
|
return(DISPATCH_LEVEL);
|
|
return(PASSIVE_LEVEL);
|
|
}
|
|
|
|
__stdcall static uint64_t
|
|
KeQueryPerformanceCounter(freq)
|
|
uint64_t *freq;
|
|
{
|
|
if (freq != NULL)
|
|
*freq = hz;
|
|
|
|
return((uint64_t)ticks);
|
|
}
|
|
|
|
|
|
static int old_ipl;
|
|
static int ipl_raised = FALSE;
|
|
|
|
__fastcall uint8_t
|
|
KfRaiseIrql(REGARGS1(uint8_t irql))
|
|
{
|
|
uint8_t oldirql = 0;
|
|
//#ifdef __NetBSD__
|
|
// uint8_t s;
|
|
//#endif
|
|
|
|
if (irql < KeGetCurrentIrql())
|
|
panic("IRQL_NOT_LESS_THAN");
|
|
|
|
if (KeGetCurrentIrql() == DISPATCH_LEVEL)
|
|
return(DISPATCH_LEVEL);
|
|
#ifdef __NetBSD__
|
|
if(irql >= DISPATCH_LEVEL && !ipl_raised) {
|
|
old_ipl = splsoftclock();
|
|
ipl_raised = TRUE;
|
|
oldirql = win_irql;
|
|
win_irql = irql;
|
|
}
|
|
#else /* __FreeBSD__ */
|
|
mtx_lock_spin(&sched_lock);
|
|
oldirql = curthread->td_base_pri;
|
|
sched_prio(curthread, PI_REALTIME);
|
|
#if __FreeBSD_version < 600000
|
|
curthread->td_base_pri = PI_REALTIME;
|
|
#endif
|
|
mtx_unlock_spin(&sched_lock);
|
|
#endif /* __FreeBSD__ */
|
|
|
|
return(oldirql);
|
|
}
|
|
|
|
__fastcall void
|
|
KfLowerIrql(REGARGS1(uint8_t oldirql))
|
|
{
|
|
//#ifdef __NetBSD__
|
|
// uint8_t s;
|
|
//#endif
|
|
|
|
if (oldirql == DISPATCH_LEVEL)
|
|
return;
|
|
|
|
#ifdef __FreeBSD__
|
|
if (KeGetCurrentIrql() != DISPATCH_LEVEL)
|
|
panic("IRQL_NOT_GREATER_THAN");
|
|
#else /* __NetBSD__ */
|
|
if (KeGetCurrentIrql() < oldirql)
|
|
panic("IRQL_NOT_GREATER_THAN");
|
|
#endif
|
|
|
|
#ifdef __NetBSD__
|
|
if(oldirql < DISPATCH_LEVEL && ipl_raised) {
|
|
splx(old_ipl);
|
|
ipl_raised = FALSE;
|
|
win_irql = oldirql;
|
|
}
|
|
#else
|
|
mtx_lock_spin(&sched_lock);
|
|
#if __FreeBSD_version < 600000
|
|
curthread->td_base_pri = oldirql;
|
|
#endif
|
|
sched_prio(curthread, oldirql);
|
|
mtx_unlock_spin(&sched_lock);
|
|
#endif /* __NetBSD__ */
|
|
|
|
return;
|
|
}
|
|
|
|
__stdcall
|
|
static void dummy()
|
|
{
|
|
printf ("hal dummy called...\n");
|
|
return;
|
|
}
|
|
|
|
image_patch_table hal_functbl[] = {
|
|
IMPORT_FUNC(KeStallExecutionProcessor),
|
|
IMPORT_FUNC(WRITE_PORT_ULONG),
|
|
IMPORT_FUNC(WRITE_PORT_USHORT),
|
|
IMPORT_FUNC(WRITE_PORT_UCHAR),
|
|
IMPORT_FUNC(WRITE_PORT_BUFFER_ULONG),
|
|
IMPORT_FUNC(WRITE_PORT_BUFFER_USHORT),
|
|
IMPORT_FUNC(WRITE_PORT_BUFFER_UCHAR),
|
|
IMPORT_FUNC(READ_PORT_ULONG),
|
|
IMPORT_FUNC(READ_PORT_USHORT),
|
|
IMPORT_FUNC(READ_PORT_UCHAR),
|
|
IMPORT_FUNC(READ_PORT_BUFFER_ULONG),
|
|
IMPORT_FUNC(READ_PORT_BUFFER_USHORT),
|
|
IMPORT_FUNC(READ_PORT_BUFFER_UCHAR),
|
|
IMPORT_FUNC(KfAcquireSpinLock),
|
|
IMPORT_FUNC(KfReleaseSpinLock),
|
|
IMPORT_FUNC(KeGetCurrentIrql),
|
|
IMPORT_FUNC(KeQueryPerformanceCounter),
|
|
IMPORT_FUNC(KfLowerIrql),
|
|
IMPORT_FUNC(KfRaiseIrql),
|
|
|
|
/*
|
|
* This last entry is a catch-all for any function we haven't
|
|
* implemented yet. The PE import list patching routine will
|
|
* use it for any function that doesn't have an explicit match
|
|
* in this table.
|
|
*/
|
|
|
|
{ NULL, (FUNC)dummy, NULL },
|
|
|
|
/* End of list. */
|
|
|
|
{ NULL, NULL, NULL }
|
|
};
|