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/*- * 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: release/9.1.0/sys/isa/pnpreg.h 139790 2005-01-06 22:18:23Z imp $ * 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 /* 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_ */