mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-22 11:17:19 +00:00
259 lines
9.2 KiB
C
259 lines
9.2 KiB
C
/*
|
|
* Copyright (c) 1996, Sujal M. Patel
|
|
* 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 Sujal M. Patel
|
|
* 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 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.
|
|
*
|
|
* $FreeBSD$
|
|
* from: pnp.h,v 1.7 1998/09/13 22:15:44 eivind Exp
|
|
*/
|
|
|
|
#ifndef _ISA_PNPREG_H_
|
|
#define _ISA_PNPREG_H_
|
|
|
|
/* Maximum Number of PnP Devices. 8 should be plenty */
|
|
#define PNP_MAX_CARDS 8
|
|
|
|
#if 0
|
|
/*
|
|
* the following is the maximum number of PnP Logical devices that
|
|
* userconfig can handle.
|
|
*/
|
|
#define MAX_PNP_LDN 20
|
|
#endif
|
|
|
|
/* Static ports to access PnP state machine */
|
|
#ifdef PC98
|
|
#define _PNP_ADDRESS 0x259
|
|
#define _PNP_WRITE_DATA 0xa59
|
|
#else
|
|
#define _PNP_ADDRESS 0x279
|
|
#define _PNP_WRITE_DATA 0xa79
|
|
#endif
|
|
|
|
/* PnP Registers. Write to ADDRESS and then use WRITE/READ_DATA */
|
|
#define PNP_SET_RD_DATA 0x00
|
|
/***
|
|
Writing to this location modifies the address of the port used for
|
|
reading from the Plug and Play ISA cards. Bits[7:0] become I/O
|
|
read port address bits[9:2]. Reads from this register are ignored.
|
|
***/
|
|
|
|
#define PNP_SERIAL_ISOLATION 0x01
|
|
/***
|
|
A read to this register causes a Plug and Play cards in the Isolation
|
|
state to compare one bit of the boards ID.
|
|
This register is read only.
|
|
***/
|
|
|
|
#define PNP_CONFIG_CONTROL 0x02
|
|
#define PNP_CONFIG_CONTROL_RESET_CSN 0x04
|
|
#define PNP_CONFIG_CONTROL_WAIT_FOR_KEY 0x02
|
|
#define PNP_CONFIG_CONTROL_RESET 0x01
|
|
/***
|
|
Bit[2] Reset CSN to 0
|
|
Bit[1] Return to the Wait for Key state
|
|
Bit[0] Reset all logical devices and restore configuration
|
|
registers to their power-up values.
|
|
|
|
A write to bit[0] of this register performs a reset function on
|
|
all logical devices. This resets the contents of configuration
|
|
registers to their default state. All card's logical devices
|
|
enter their default state and the CSN is preserved.
|
|
|
|
A write to bit[1] of this register causes all cards to enter the
|
|
Wait for Key state but all CSNs are preserved and logical devices
|
|
are not affected.
|
|
|
|
A write to bit[2] of this register causes all cards to reset their
|
|
CSN to zero .
|
|
|
|
This register is write-only. The values are not sticky, that is,
|
|
hardware will automatically clear them and there is no need for
|
|
software to clear the bits.
|
|
***/
|
|
|
|
#define PNP_WAKE 0x03
|
|
/***
|
|
A write to this port will cause all cards that have a CSN that
|
|
matches the write data[7:0] to go from the Sleep state to the either
|
|
the Isolation state if the write data for this command is zero or
|
|
the Config state if the write data is not zero. Additionally, the
|
|
pointer to the byte-serial device is reset. This register is
|
|
writeonly.
|
|
***/
|
|
|
|
#define PNP_RESOURCE_DATA 0x04
|
|
/***
|
|
A read from this address reads the next byte of resource information.
|
|
The Status register must be polled until bit[0] is set before this
|
|
register may be read. This register is read only.
|
|
***/
|
|
|
|
#define PNP_STATUS 0x05
|
|
/***
|
|
Bit[0] when set indicates it is okay to read the next data byte
|
|
from the Resource Data register. This register is readonly.
|
|
***/
|
|
|
|
#define PNP_SET_CSN 0x06
|
|
/***
|
|
A write to this port sets a card's CSN. The CSN is a value uniquely
|
|
assigned to each ISA card after the serial identification process
|
|
so that each card may be individually selected during a Wake[CSN]
|
|
command. This register is read/write.
|
|
***/
|
|
|
|
#define PNP_SET_LDN 0x07
|
|
/***
|
|
Selects the current logical device. All reads and writes of memory,
|
|
I/O, interrupt and DMA configuration information access the registers
|
|
of the logical device written here. In addition, the I/O Range
|
|
Check and Activate commands operate only on the selected logical
|
|
device. This register is read/write. If a card has only 1 logical
|
|
device, this location should be a read-only value of 0x00.
|
|
***/
|
|
|
|
/*** addresses 0x08 - 0x1F Card Level Reserved for future use ***/
|
|
/*** addresses 0x20 - 0x2F Card Level, Vendor Defined ***/
|
|
|
|
#define PNP_ACTIVATE 0x30
|
|
/***
|
|
For each logical device there is one activate register that controls
|
|
whether or not the logical device is active on the ISA bus. Bit[0],
|
|
if set, activates the logical device. Bits[7:1] are reserved and
|
|
must return 0 on reads. This is a read/write register. Before a
|
|
logical device is activated, I/O range check must be disabled.
|
|
***/
|
|
|
|
#define PNP_IO_RANGE_CHECK 0x31
|
|
#define PNP_IO_RANGE_CHECK_ENABLE 0x02
|
|
#define PNP_IO_RANGE_CHECK_READ_AS_55 0x01
|
|
/***
|
|
This register is used to perform a conflict check on the I/O port
|
|
range programmed for use by a logical device.
|
|
|
|
Bit[7:2] Reserved and must return 0 on reads
|
|
Bit[1] Enable I/O Range check, if set then I/O Range Check
|
|
is enabled. I/O range check is only valid when the logical
|
|
device is inactive.
|
|
|
|
Bit[0], if set, forces the logical device to respond to I/O reads
|
|
of the logical device's assigned I/O range with a 0x55 when I/O
|
|
range check is in operation. If clear, the logical device drives
|
|
0xAA. This register is read/write.
|
|
***/
|
|
|
|
/*** addr 0x32 - 0x37 Logical Device Control Reserved for future use ***/
|
|
/*** addr 0x38 - 0x3F Logical Device Control Vendor Define ***/
|
|
|
|
#define PNP_MEM_BASE_HIGH(i) (0x40 + 8*(i))
|
|
#define PNP_MEM_BASE_LOW(i) (0x41 + 8*(i))
|
|
#define PNP_MEM_CONTROL(i) (0x42 * 8*(i))
|
|
#define PNP_MEM_CONTROL_16BIT 0x2
|
|
#define PNP_MEM_CONTROL_LIMIT 0x1
|
|
#define PNP_MEM_RANGE_HIGH(i) (0x43 + 8*(i))
|
|
#define PNP_MEM_RANGE_LOW(i) (0x44 + 8*(i))
|
|
/***
|
|
Four memory resource registers per range, four ranges.
|
|
Fill with 0 if no ranges are enabled.
|
|
|
|
Offset 0: RW Memory base address bits[23:16]
|
|
Offset 1: RW Memory base address bits[15:8]
|
|
Offset 2: Memory control
|
|
Bit[1] specifies 8/16-bit control. This bit is set to indicate
|
|
16-bit memory, and cleared to indicate 8-bit memory.
|
|
Bit[0], if cleared, indicates the next field can be used as a range
|
|
length for decode (implies range length and base alignment of memory
|
|
descriptor are equal).
|
|
Bit[0], if set, indicates the next field is the upper limit for
|
|
the address. - - Bit[0] is read-only.
|
|
Offset 3: RW upper limit or range len, bits[23:16]
|
|
Offset 4: RW upper limit or range len, bits[15:8]
|
|
Offset 5-Offset 7: filler, unused.
|
|
***/
|
|
|
|
#define PNP_IO_BASE_HIGH(i) (0x60 + 2*(i))
|
|
#define PNP_IO_BASE_LOW(i) (0x61 + 2*(i))
|
|
/***
|
|
Eight ranges, two bytes per range.
|
|
Offset 0: I/O port base address bits[15:8]
|
|
Offset 1: I/O port base address bits[7:0]
|
|
***/
|
|
|
|
#define PNP_IRQ_LEVEL(i) (0x70 + 2*(i))
|
|
#define PNP_IRQ_TYPE(i) (0x71 + 2*(i))
|
|
/***
|
|
Two entries, two bytes per entry.
|
|
Offset 0: RW interrupt level (1..15, 0=unused).
|
|
Offset 1: Bit[1]: level(1:hi, 0:low),
|
|
Bit[0]: type (1:level, 0:edge)
|
|
byte 1 can be readonly if 1 type of int is used.
|
|
***/
|
|
|
|
#define PNP_DMA_CHANNEL(i) (0x74 + 1*(i))
|
|
/***
|
|
Two entries, one byte per entry. Bits[2:0] select
|
|
which DMA channel is in use for DMA 0. Zero selects DMA channel
|
|
0, seven selects DMA channel 7. DMA channel 4, the cascade channel
|
|
is used to indicate no DMA channel is active.
|
|
***/
|
|
|
|
/*** 32-bit memory accesses are at 0x76 ***/
|
|
|
|
/* Macros to parse Resource IDs */
|
|
#define PNP_RES_TYPE(a) (a >> 7)
|
|
#define PNP_SRES_NUM(a) (a >> 3)
|
|
#define PNP_SRES_LEN(a) (a & 0x07)
|
|
#define PNP_LRES_NUM(a) (a & 0x7f)
|
|
|
|
/* Small Resource Item names */
|
|
#define PNP_TAG_VERSION 0x1
|
|
#define PNP_TAG_LOGICAL_DEVICE 0x2
|
|
#define PNP_TAG_COMPAT_DEVICE 0x3
|
|
#define PNP_TAG_IRQ_FORMAT 0x4
|
|
#define PNP_TAG_DMA_FORMAT 0x5
|
|
#define PNP_TAG_START_DEPENDANT 0x6
|
|
#define PNP_TAG_END_DEPENDANT 0x7
|
|
#define PNP_TAG_IO_RANGE 0x8
|
|
#define PNP_TAG_IO_FIXED 0x9
|
|
#define PNP_TAG_RESERVED 0xa-0xd
|
|
#define PNP_TAG_VENDOR 0xe
|
|
#define PNP_TAG_END 0xf
|
|
|
|
/* Large Resource Item names */
|
|
#define PNP_TAG_MEMORY_RANGE 0x1
|
|
#define PNP_TAG_ID_ANSI 0x2
|
|
#define PNP_TAG_ID_UNICODE 0x3
|
|
#define PNP_TAG_LARGE_VENDOR 0x4
|
|
#define PNP_TAG_MEMORY32_RANGE 0x5
|
|
#define PNP_TAG_MEMORY32_FIXED 0x6
|
|
#define PNP_TAG_LARGE_RESERVED 0x7-0x7f
|
|
|
|
#endif /* !_ISA_PNPREG_H_ */
|