74 lines
2.6 KiB
C
74 lines
2.6 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2001-2005 The Regents of The University of Michigan
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions are
|
||
|
|
* met: redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer;
|
||
|
|
* 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;
|
||
|
|
* neither the name of the copyright holders 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 COPYRIGHT HOLDERS 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 COPYRIGHT
|
||
|
|
* OWNER 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* @file
|
||
|
|
* Device register definitions for a device's PCI config space
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __PITREG_H__
|
||
|
|
#define __PITREG_H__
|
||
|
|
|
||
|
|
#include <sys/types.h>
|
||
|
|
|
||
|
|
// Control Word Format
|
||
|
|
|
||
|
|
#define PIT_SEL_SHFT 0x6
|
||
|
|
#define PIT_RW_SHFT 0x4
|
||
|
|
#define PIT_MODE_SHFT 0x1
|
||
|
|
#define PIT_BCD_SHFT 0x0
|
||
|
|
|
||
|
|
#define PIT_SEL_MASK 0x3
|
||
|
|
#define PIT_RW_MASK 0x3
|
||
|
|
#define PIT_MODE_MASK 0x7
|
||
|
|
#define PIT_BCD_MASK 0x1
|
||
|
|
|
||
|
|
#define GET_CTRL_FIELD(x, s, m) (((x) >> s) & m)
|
||
|
|
#define GET_CTRL_SEL(x) GET_CTRL_FIELD(x, PIT_SEL_SHFT, PIT_SEL_MASK)
|
||
|
|
#define GET_CTRL_RW(x) GET_CTRL_FIELD(x, PIT_RW_SHFT, PIT_RW_MASK)
|
||
|
|
#define GET_CTRL_MODE(x) GET_CTRL_FIELD(x, PIT_MODE_SHFT, PIT_MODE_MASK)
|
||
|
|
#define GET_CTRL_BCD(x) GET_CTRL_FIELD(x, PIT_BCD_SHFT, PIT_BCD_MASK)
|
||
|
|
|
||
|
|
#define PIT_READ_BACK 0x3
|
||
|
|
|
||
|
|
#define PIT_RW_LATCH_COMMAND 0x0
|
||
|
|
#define PIT_RW_LSB_ONLY 0x1
|
||
|
|
#define PIT_RW_MSB_ONLY 0x2
|
||
|
|
#define PIT_RW_16BIT 0x3
|
||
|
|
|
||
|
|
#define PIT_MODE_INTTC 0x0
|
||
|
|
#define PIT_MODE_ONESHOT 0x1
|
||
|
|
#define PIT_MODE_RATEGEN 0x2
|
||
|
|
#define PIT_MODE_SQWAVE 0x3
|
||
|
|
#define PIT_MODE_SWSTROBE 0x4
|
||
|
|
#define PIT_MODE_HWSTROBE 0x5
|
||
|
|
|
||
|
|
#define PIT_BCD_FALSE 0x0
|
||
|
|
#define PIT_BCD_TRUE 0x1
|
||
|
|
|
||
|
|
#endif // __PITREG_H__
|