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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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154 lines
4.4 KiB
C
154 lines
4.4 KiB
C
/*
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* eisa_eeprom.h - provide support for EISA adapters in PA-RISC machines
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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* Copyright (c) 2001, 2002 Daniel Engstrom <5116@telia.com>
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*
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*/
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#ifndef ASM_EISA_EEPROM_H
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#define ASM_EISA_EEPROM_H
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extern void __iomem *eisa_eeprom_addr;
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#define HPEE_MAX_LENGTH 0x2000 /* maximum eeprom length */
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#define HPEE_SLOT_INFO(slot) (20+(48*slot))
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struct eeprom_header
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{
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u_int32_t num_writes; /* number of writes */
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u_int8_t flags; /* flags, usage? */
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u_int8_t ver_maj;
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u_int8_t ver_min;
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u_int8_t num_slots; /* number of EISA slots in system */
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u_int16_t csum; /* checksum, I don't know how to calulate this */
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u_int8_t pad[10];
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} __attribute__ ((packed));
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struct eeprom_eisa_slot_info
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{
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u_int32_t eisa_slot_id;
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u_int32_t config_data_offset;
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u_int32_t num_writes;
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u_int16_t csum;
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u_int16_t num_functions;
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u_int16_t config_data_length;
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/* bits 0..3 are the duplicate slot id */
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#define HPEE_SLOT_INFO_EMBEDDED 0x10
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#define HPEE_SLOT_INFO_VIRTUAL 0x20
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#define HPEE_SLOT_INFO_NO_READID 0x40
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#define HPEE_SLOT_INFO_DUPLICATE 0x80
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u_int8_t slot_info;
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#define HPEE_SLOT_FEATURES_ENABLE 0x01
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#define HPEE_SLOT_FEATURES_IOCHK 0x02
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#define HPEE_SLOT_FEATURES_CFG_INCOMPLETE 0x80
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u_int8_t slot_features;
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u_int8_t ver_min;
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u_int8_t ver_maj;
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#define HPEE_FUNCTION_INFO_HAVE_TYPE 0x01
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#define HPEE_FUNCTION_INFO_HAVE_MEMORY 0x02
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#define HPEE_FUNCTION_INFO_HAVE_IRQ 0x04
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#define HPEE_FUNCTION_INFO_HAVE_DMA 0x08
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#define HPEE_FUNCTION_INFO_HAVE_PORT 0x10
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#define HPEE_FUNCTION_INFO_HAVE_PORT_INIT 0x20
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/* I think there are two slighty different
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* versions of the function_info field
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* one int the fixed header and one optional
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* in the parsed slot data area */
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#define HPEE_FUNCTION_INFO_HAVE_FUNCTION 0x01
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#define HPEE_FUNCTION_INFO_F_DISABLED 0x80
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#define HPEE_FUNCTION_INFO_CFG_FREE_FORM 0x40
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u_int8_t function_info;
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#define HPEE_FLAG_BOARD_IS_ISA 0x01 /* flag and minor version for isa board */
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u_int8_t flags;
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u_int8_t pad[24];
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} __attribute__ ((packed));
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#define HPEE_MEMORY_MAX_ENT 9
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/* memory descriptor: byte 0 */
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#define HPEE_MEMORY_WRITABLE 0x01
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#define HPEE_MEMORY_CACHABLE 0x02
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#define HPEE_MEMORY_TYPE_MASK 0x18
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#define HPEE_MEMORY_TYPE_SYS 0x00
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#define HPEE_MEMORY_TYPE_EXP 0x08
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#define HPEE_MEMORY_TYPE_VIR 0x10
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#define HPEE_MEMORY_TYPE_OTH 0x18
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#define HPEE_MEMORY_SHARED 0x20
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#define HPEE_MEMORY_MORE 0x80
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/* memory descriptor: byte 1 */
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#define HPEE_MEMORY_WIDTH_MASK 0x03
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#define HPEE_MEMORY_WIDTH_BYTE 0x00
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#define HPEE_MEMORY_WIDTH_WORD 0x01
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#define HPEE_MEMORY_WIDTH_DWORD 0x02
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#define HPEE_MEMORY_DECODE_MASK 0x0c
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#define HPEE_MEMORY_DECODE_20BITS 0x00
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#define HPEE_MEMORY_DECODE_24BITS 0x04
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#define HPEE_MEMORY_DECODE_32BITS 0x08
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/* byte 2 and 3 are a 16bit LE value
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* containging the memory size in kilobytes */
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/* byte 4,5,6 are a 24bit LE value
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* containing the memory base address */
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#define HPEE_IRQ_MAX_ENT 7
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/* Interrupt entry: byte 0 */
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#define HPEE_IRQ_CHANNEL_MASK 0xf
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#define HPEE_IRQ_TRIG_LEVEL 0x20
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#define HPEE_IRQ_MORE 0x80
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/* byte 1 seems to be unused */
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#define HPEE_DMA_MAX_ENT 4
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/* dma entry: byte 0 */
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#define HPEE_DMA_CHANNEL_MASK 7
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#define HPEE_DMA_SIZE_MASK 0xc
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#define HPEE_DMA_SIZE_BYTE 0x0
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#define HPEE_DMA_SIZE_WORD 0x4
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#define HPEE_DMA_SIZE_DWORD 0x8
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#define HPEE_DMA_SHARED 0x40
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#define HPEE_DMA_MORE 0x80
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/* dma entry: byte 1 */
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#define HPEE_DMA_TIMING_MASK 0x30
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#define HPEE_DMA_TIMING_ISA 0x0
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#define HPEE_DMA_TIMING_TYPEA 0x10
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#define HPEE_DMA_TIMING_TYPEB 0x20
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#define HPEE_DMA_TIMING_TYPEC 0x30
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#define HPEE_PORT_MAX_ENT 20
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/* port entry byte 0 */
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#define HPEE_PORT_SIZE_MASK 0x1f
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#define HPEE_PORT_SHARED 0x40
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#define HPEE_PORT_MORE 0x80
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/* byte 1 and 2 is a 16bit LE value
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* conating the start port number */
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#define HPEE_PORT_INIT_MAX_LEN 60 /* in bytes here */
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/* port init entry byte 0 */
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#define HPEE_PORT_INIT_WIDTH_MASK 0x3
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#define HPEE_PORT_INIT_WIDTH_BYTE 0x0
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#define HPEE_PORT_INIT_WIDTH_WORD 0x1
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#define HPEE_PORT_INIT_WIDTH_DWORD 0x2
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#define HPEE_PORT_INIT_MASK 0x4
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#define HPEE_PORT_INIT_MORE 0x80
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#define HPEE_SELECTION_MAX_ENT 26
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#define HPEE_TYPE_MAX_LEN 80
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#endif
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