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/*

 * eisa_eeprom.h - provide support for EISA adapters in PA-RISC machines

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version

 * 2 of the License, or (at your option) any later version.

 *

 * Copyright (c) 2001, 2002 Daniel Engstrom <5116@telia.com>

 *

 */

#ifndef ASM_EISA_EEPROM_H

#define ASM_EISA_EEPROM_H

#define HPEE_MAX_LENGTH       0x2000    /* maximum eeprom length */

#define HPEE_SLOT_INFO(slot) (20+(48*slot))

struct eeprom_header

{

        u_int32_t num_writes;       /* number of writes */

        u_int8_t  flags;            /* flags, usage? */

        u_int8_t  ver_maj;

        u_int8_t  ver_min;

        u_int8_t  num_slots;        /* number of EISA slots in system */

        u_int16_t csum;             /* checksum, I dont know how to calulate this */

        u_int8_t  pad[10];

} __attribute__ ((packed));

struct eeprom_eisa_slot_info

{

        u_int32_t eisa_slot_id;

        u_int32_t config_data_offset;

        u_int32_t num_writes;

        u_int16_t csum;

        u_int16_t num_functions;

        u_int16_t config_data_length;

        /* bits 0..3 are the duplicate slot id */

#define HPEE_SLOT_INFO_EMBEDDED  0x10

#define HPEE_SLOT_INFO_VIRTUAL   0x20

#define HPEE_SLOT_INFO_NO_READID 0x40

#define HPEE_SLOT_INFO_DUPLICATE 0x80

        u_int8_t slot_info;

#define HPEE_SLOT_FEATURES_ENABLE         0x01

#define HPEE_SLOT_FEATURES_IOCHK          0x02

#define HPEE_SLOT_FEATURES_CFG_INCOMPLETE 0x80

        u_int8_t slot_features;

        u_int8_t  ver_min;

        u_int8_t  ver_maj;

#define HPEE_FUNCTION_INFO_HAVE_TYPE      0x01

#define HPEE_FUNCTION_INFO_HAVE_MEMORY    0x02

#define HPEE_FUNCTION_INFO_HAVE_IRQ       0x04

#define HPEE_FUNCTION_INFO_HAVE_DMA       0x08

#define HPEE_FUNCTION_INFO_HAVE_PORT      0x10

#define HPEE_FUNCTION_INFO_HAVE_PORT_INIT 0x20

/* I think there are two slighty different

 * versions of the function_info field

 * one int the fixed header and one optional

 * in the parsed slot data area */

#define HPEE_FUNCTION_INFO_HAVE_FUNCTION  0x01

#define HPEE_FUNCTION_INFO_F_DISABLED     0x80

#define HPEE_FUNCTION_INFO_CFG_FREE_FORM  0x40

        u_int8_t  function_info;

#define HPEE_FLAG_BOARD_IS_ISA            0x01 /* flag and minor version for isa board */

        u_int8_t  flags;

        u_int8_t  pad[24];

} __attribute__ ((packed));

#define HPEE_MEMORY_MAX_ENT   9

/* memory descriptor: byte 0 */

#define HPEE_MEMORY_WRITABLE  0x01

#define HPEE_MEMORY_CACHABLE  0x02

#define HPEE_MEMORY_TYPE_MASK 0x18

#define HPEE_MEMORY_TYPE_SYS  0x00

#define HPEE_MEMORY_TYPE_EXP  0x08

#define HPEE_MEMORY_TYPE_VIR  0x10

#define HPEE_MEMORY_TYPE_OTH  0x18

#define HPEE_MEMORY_SHARED    0x20

#define HPEE_MEMORY_MORE      0x80

/* memory descriptor: byte 1 */

#define HPEE_MEMORY_WIDTH_MASK 0x03

#define HPEE_MEMORY_WIDTH_BYTE 0x00

#define HPEE_MEMORY_WIDTH_WORD 0x01

#define HPEE_MEMORY_WIDTH_DWORD 0x02

#define HPEE_MEMORY_DECODE_MASK 0x0c

#define HPEE_MEMORY_DECODE_20BITS 0x00

#define HPEE_MEMORY_DECODE_24BITS 0x04

#define HPEE_MEMORY_DECODE_32BITS 0x08

/* byte 2 and 3 are a 16bit LE value

 * containging the memory size in kilobytes */

/* byte 4,5,6 are a 24bit LE value

 * containing the memory base address */

#define HPEE_IRQ_MAX_ENT      7

/* Interrupt entry: byte 0 */

#define HPEE_IRQ_CHANNEL_MASK 0xf

#define HPEE_IRQ_TRIG_LEVEL   0x20

#define HPEE_IRQ_MORE         0x80

/* byte 1 seems to be unused */

#define HPEE_DMA_MAX_ENT     4

/* dma entry: byte 0 */

#define HPEE_DMA_CHANNEL_MASK 7

#define HPEE_DMA_SIZE_MASK      0xc

#define HPEE_DMA_SIZE_BYTE      0x0

#define HPEE_DMA_SIZE_WORD      0x4

#define HPEE_DMA_SIZE_DWORD     0x8

#define HPEE_DMA_SHARED      0x40

#define HPEE_DMA_MORE        0x80

/* dma entry: byte 1 */

#define HPEE_DMA_TIMING_MASK 0x30

#define HPEE_DMA_TIMING_ISA     0x0

#define HPEE_DMA_TIMING_TYPEA 0x10

#define HPEE_DMA_TIMING_TYPEB 0x20

#define HPEE_DMA_TIMING_TYPEC 0x30

#define HPEE_PORT_MAX_ENT 20

/* port entry byte 0 */

#define HPEE_PORT_SIZE_MASK 0x1f

#define HPEE_PORT_SHARED    0x40

#define HPEE_PORT_MORE      0x80

/* byte 1 and 2 is a 16bit LE value

 * conating the start port number */

#define HPEE_PORT_INIT_MAX_LEN     60 /* in bytes here */

/* port init entry byte 0 */

#define HPEE_PORT_INIT_WIDTH_MASK  0x3

#define HPEE_PORT_INIT_WIDTH_BYTE  0x0

#define HPEE_PORT_INIT_WIDTH_WORD  0x1

#define HPEE_PORT_INIT_WIDTH_DWORD 0x2

#define HPEE_PORT_INIT_MASK        0x4

#define HPEE_PORT_INIT_MORE        0x80

#define HPEE_SELECTION_MAX_ENT 26

#define HPEE_TYPE_MAX_LEN    80

#endif