forked from Minki/linux
06ed6aa56f
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
sizeof(flexible-array-member) triggers a warning because flexible array
members have incomplete type[1]. There are some instances of code in
which the sizeof operator is being incorrectly/erroneously applied to
zero-length arrays and the result is zero. Such instances may be hiding
some bugs. So, this work (flexible-array member conversions) will also
help to get completely rid of those sorts of issues.
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
578 lines
14 KiB
C
578 lines
14 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* cistpl.h
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*
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* The initial developer of the original code is David A. Hinds
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* <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
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* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
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*
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* (C) 1999 David A. Hinds
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*/
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#ifndef _LINUX_CISTPL_H
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#define _LINUX_CISTPL_H
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typedef unsigned char cisdata_t;
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#define CISTPL_NULL 0x00
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#define CISTPL_DEVICE 0x01
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#define CISTPL_LONGLINK_CB 0x02
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#define CISTPL_INDIRECT 0x03
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#define CISTPL_CONFIG_CB 0x04
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#define CISTPL_CFTABLE_ENTRY_CB 0x05
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#define CISTPL_LONGLINK_MFC 0x06
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#define CISTPL_BAR 0x07
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#define CISTPL_PWR_MGMNT 0x08
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#define CISTPL_EXTDEVICE 0x09
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#define CISTPL_CHECKSUM 0x10
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#define CISTPL_LONGLINK_A 0x11
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#define CISTPL_LONGLINK_C 0x12
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#define CISTPL_LINKTARGET 0x13
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#define CISTPL_NO_LINK 0x14
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#define CISTPL_VERS_1 0x15
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#define CISTPL_ALTSTR 0x16
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#define CISTPL_DEVICE_A 0x17
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#define CISTPL_JEDEC_C 0x18
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#define CISTPL_JEDEC_A 0x19
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#define CISTPL_CONFIG 0x1a
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#define CISTPL_CFTABLE_ENTRY 0x1b
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#define CISTPL_DEVICE_OC 0x1c
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#define CISTPL_DEVICE_OA 0x1d
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#define CISTPL_DEVICE_GEO 0x1e
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#define CISTPL_DEVICE_GEO_A 0x1f
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#define CISTPL_MANFID 0x20
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#define CISTPL_FUNCID 0x21
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#define CISTPL_FUNCE 0x22
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#define CISTPL_SWIL 0x23
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#define CISTPL_END 0xff
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/* Layer 2 tuples */
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#define CISTPL_VERS_2 0x40
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#define CISTPL_FORMAT 0x41
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#define CISTPL_GEOMETRY 0x42
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#define CISTPL_BYTEORDER 0x43
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#define CISTPL_DATE 0x44
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#define CISTPL_BATTERY 0x45
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#define CISTPL_FORMAT_A 0x47
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/* Layer 3 tuples */
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#define CISTPL_ORG 0x46
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#define CISTPL_SPCL 0x90
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typedef struct cistpl_longlink_t {
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u_int addr;
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} cistpl_longlink_t;
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typedef struct cistpl_checksum_t {
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u_short addr;
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u_short len;
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u_char sum;
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} cistpl_checksum_t;
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#define CISTPL_MAX_FUNCTIONS 8
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#define CISTPL_MFC_ATTR 0x00
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#define CISTPL_MFC_COMMON 0x01
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typedef struct cistpl_longlink_mfc_t {
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u_char nfn;
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struct {
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u_char space;
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u_int addr;
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} fn[CISTPL_MAX_FUNCTIONS];
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} cistpl_longlink_mfc_t;
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#define CISTPL_MAX_ALTSTR_STRINGS 4
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typedef struct cistpl_altstr_t {
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u_char ns;
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u_char ofs[CISTPL_MAX_ALTSTR_STRINGS];
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char str[254];
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} cistpl_altstr_t;
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#define CISTPL_DTYPE_NULL 0x00
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#define CISTPL_DTYPE_ROM 0x01
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#define CISTPL_DTYPE_OTPROM 0x02
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#define CISTPL_DTYPE_EPROM 0x03
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#define CISTPL_DTYPE_EEPROM 0x04
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#define CISTPL_DTYPE_FLASH 0x05
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#define CISTPL_DTYPE_SRAM 0x06
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#define CISTPL_DTYPE_DRAM 0x07
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#define CISTPL_DTYPE_FUNCSPEC 0x0d
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#define CISTPL_DTYPE_EXTEND 0x0e
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#define CISTPL_MAX_DEVICES 4
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typedef struct cistpl_device_t {
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u_char ndev;
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struct {
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u_char type;
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u_char wp;
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u_int speed;
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u_int size;
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} dev[CISTPL_MAX_DEVICES];
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} cistpl_device_t;
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#define CISTPL_DEVICE_MWAIT 0x01
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#define CISTPL_DEVICE_3VCC 0x02
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typedef struct cistpl_device_o_t {
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u_char flags;
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cistpl_device_t device;
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} cistpl_device_o_t;
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#define CISTPL_VERS_1_MAX_PROD_STRINGS 4
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typedef struct cistpl_vers_1_t {
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u_char major;
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u_char minor;
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u_char ns;
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u_char ofs[CISTPL_VERS_1_MAX_PROD_STRINGS];
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char str[254];
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} cistpl_vers_1_t;
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typedef struct cistpl_jedec_t {
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u_char nid;
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struct {
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u_char mfr;
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u_char info;
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} id[CISTPL_MAX_DEVICES];
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} cistpl_jedec_t;
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typedef struct cistpl_manfid_t {
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u_short manf;
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u_short card;
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} cistpl_manfid_t;
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#define CISTPL_FUNCID_MULTI 0x00
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#define CISTPL_FUNCID_MEMORY 0x01
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#define CISTPL_FUNCID_SERIAL 0x02
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#define CISTPL_FUNCID_PARALLEL 0x03
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#define CISTPL_FUNCID_FIXED 0x04
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#define CISTPL_FUNCID_VIDEO 0x05
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#define CISTPL_FUNCID_NETWORK 0x06
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#define CISTPL_FUNCID_AIMS 0x07
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#define CISTPL_FUNCID_SCSI 0x08
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#define CISTPL_SYSINIT_POST 0x01
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#define CISTPL_SYSINIT_ROM 0x02
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typedef struct cistpl_funcid_t {
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u_char func;
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u_char sysinit;
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} cistpl_funcid_t;
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typedef struct cistpl_funce_t {
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u_char type;
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u_char data[];
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} cistpl_funce_t;
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/*======================================================================
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Modem Function Extension Tuples
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======================================================================*/
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#define CISTPL_FUNCE_SERIAL_IF 0x00
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#define CISTPL_FUNCE_SERIAL_CAP 0x01
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#define CISTPL_FUNCE_SERIAL_SERV_DATA 0x02
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#define CISTPL_FUNCE_SERIAL_SERV_FAX 0x03
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#define CISTPL_FUNCE_SERIAL_SERV_VOICE 0x04
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#define CISTPL_FUNCE_SERIAL_CAP_DATA 0x05
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#define CISTPL_FUNCE_SERIAL_CAP_FAX 0x06
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#define CISTPL_FUNCE_SERIAL_CAP_VOICE 0x07
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#define CISTPL_FUNCE_SERIAL_IF_DATA 0x08
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#define CISTPL_FUNCE_SERIAL_IF_FAX 0x09
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#define CISTPL_FUNCE_SERIAL_IF_VOICE 0x0a
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/* UART identification */
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#define CISTPL_SERIAL_UART_8250 0x00
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#define CISTPL_SERIAL_UART_16450 0x01
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#define CISTPL_SERIAL_UART_16550 0x02
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#define CISTPL_SERIAL_UART_8251 0x03
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#define CISTPL_SERIAL_UART_8530 0x04
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#define CISTPL_SERIAL_UART_85230 0x05
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/* UART capabilities */
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#define CISTPL_SERIAL_UART_SPACE 0x01
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#define CISTPL_SERIAL_UART_MARK 0x02
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#define CISTPL_SERIAL_UART_ODD 0x04
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#define CISTPL_SERIAL_UART_EVEN 0x08
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#define CISTPL_SERIAL_UART_5BIT 0x01
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#define CISTPL_SERIAL_UART_6BIT 0x02
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#define CISTPL_SERIAL_UART_7BIT 0x04
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#define CISTPL_SERIAL_UART_8BIT 0x08
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#define CISTPL_SERIAL_UART_1STOP 0x10
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#define CISTPL_SERIAL_UART_MSTOP 0x20
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#define CISTPL_SERIAL_UART_2STOP 0x40
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typedef struct cistpl_serial_t {
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u_char uart_type;
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u_char uart_cap_0;
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u_char uart_cap_1;
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} cistpl_serial_t;
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typedef struct cistpl_modem_cap_t {
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u_char flow;
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u_char cmd_buf;
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u_char rcv_buf_0, rcv_buf_1, rcv_buf_2;
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u_char xmit_buf_0, xmit_buf_1, xmit_buf_2;
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} cistpl_modem_cap_t;
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#define CISTPL_SERIAL_MOD_103 0x01
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#define CISTPL_SERIAL_MOD_V21 0x02
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#define CISTPL_SERIAL_MOD_V23 0x04
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#define CISTPL_SERIAL_MOD_V22 0x08
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#define CISTPL_SERIAL_MOD_212A 0x10
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#define CISTPL_SERIAL_MOD_V22BIS 0x20
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#define CISTPL_SERIAL_MOD_V26 0x40
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#define CISTPL_SERIAL_MOD_V26BIS 0x80
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#define CISTPL_SERIAL_MOD_V27BIS 0x01
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#define CISTPL_SERIAL_MOD_V29 0x02
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#define CISTPL_SERIAL_MOD_V32 0x04
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#define CISTPL_SERIAL_MOD_V32BIS 0x08
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#define CISTPL_SERIAL_MOD_V34 0x10
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#define CISTPL_SERIAL_ERR_MNP2_4 0x01
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#define CISTPL_SERIAL_ERR_V42_LAPM 0x02
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#define CISTPL_SERIAL_CMPR_V42BIS 0x01
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#define CISTPL_SERIAL_CMPR_MNP5 0x02
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#define CISTPL_SERIAL_CMD_AT1 0x01
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#define CISTPL_SERIAL_CMD_AT2 0x02
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#define CISTPL_SERIAL_CMD_AT3 0x04
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#define CISTPL_SERIAL_CMD_MNP_AT 0x08
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#define CISTPL_SERIAL_CMD_V25BIS 0x10
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#define CISTPL_SERIAL_CMD_V25A 0x20
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#define CISTPL_SERIAL_CMD_DMCL 0x40
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typedef struct cistpl_data_serv_t {
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u_char max_data_0;
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u_char max_data_1;
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u_char modulation_0;
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u_char modulation_1;
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u_char error_control;
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u_char compression;
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u_char cmd_protocol;
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u_char escape;
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u_char encrypt;
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u_char misc_features;
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u_char ccitt_code[];
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} cistpl_data_serv_t;
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typedef struct cistpl_fax_serv_t {
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u_char max_data_0;
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u_char max_data_1;
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u_char modulation;
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u_char encrypt;
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u_char features_0;
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u_char features_1;
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u_char ccitt_code[];
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} cistpl_fax_serv_t;
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typedef struct cistpl_voice_serv_t {
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u_char max_data_0;
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u_char max_data_1;
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} cistpl_voice_serv_t;
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/*======================================================================
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LAN Function Extension Tuples
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======================================================================*/
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#define CISTPL_FUNCE_LAN_TECH 0x01
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#define CISTPL_FUNCE_LAN_SPEED 0x02
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#define CISTPL_FUNCE_LAN_MEDIA 0x03
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#define CISTPL_FUNCE_LAN_NODE_ID 0x04
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#define CISTPL_FUNCE_LAN_CONNECTOR 0x05
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/* LAN technologies */
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#define CISTPL_LAN_TECH_ARCNET 0x01
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#define CISTPL_LAN_TECH_ETHERNET 0x02
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#define CISTPL_LAN_TECH_TOKENRING 0x03
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#define CISTPL_LAN_TECH_LOCALTALK 0x04
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#define CISTPL_LAN_TECH_FDDI 0x05
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#define CISTPL_LAN_TECH_ATM 0x06
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#define CISTPL_LAN_TECH_WIRELESS 0x07
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typedef struct cistpl_lan_tech_t {
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u_char tech;
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} cistpl_lan_tech_t;
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typedef struct cistpl_lan_speed_t {
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u_int speed;
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} cistpl_lan_speed_t;
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/* LAN media definitions */
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#define CISTPL_LAN_MEDIA_UTP 0x01
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#define CISTPL_LAN_MEDIA_STP 0x02
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#define CISTPL_LAN_MEDIA_THIN_COAX 0x03
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#define CISTPL_LAN_MEDIA_THICK_COAX 0x04
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#define CISTPL_LAN_MEDIA_FIBER 0x05
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#define CISTPL_LAN_MEDIA_900MHZ 0x06
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#define CISTPL_LAN_MEDIA_2GHZ 0x07
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#define CISTPL_LAN_MEDIA_5GHZ 0x08
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#define CISTPL_LAN_MEDIA_DIFF_IR 0x09
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#define CISTPL_LAN_MEDIA_PTP_IR 0x0a
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typedef struct cistpl_lan_media_t {
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u_char media;
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} cistpl_lan_media_t;
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typedef struct cistpl_lan_node_id_t {
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u_char nb;
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u_char id[16];
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} cistpl_lan_node_id_t;
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typedef struct cistpl_lan_connector_t {
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u_char code;
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} cistpl_lan_connector_t;
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/*======================================================================
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IDE Function Extension Tuples
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======================================================================*/
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#define CISTPL_IDE_INTERFACE 0x01
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typedef struct cistpl_ide_interface_t {
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u_char interface;
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} cistpl_ide_interface_t;
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/* First feature byte */
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#define CISTPL_IDE_SILICON 0x04
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#define CISTPL_IDE_UNIQUE 0x08
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#define CISTPL_IDE_DUAL 0x10
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/* Second feature byte */
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#define CISTPL_IDE_HAS_SLEEP 0x01
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#define CISTPL_IDE_HAS_STANDBY 0x02
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#define CISTPL_IDE_HAS_IDLE 0x04
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#define CISTPL_IDE_LOW_POWER 0x08
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#define CISTPL_IDE_REG_INHIBIT 0x10
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#define CISTPL_IDE_HAS_INDEX 0x20
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#define CISTPL_IDE_IOIS16 0x40
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typedef struct cistpl_ide_feature_t {
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u_char feature1;
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u_char feature2;
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} cistpl_ide_feature_t;
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#define CISTPL_FUNCE_IDE_IFACE 0x01
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#define CISTPL_FUNCE_IDE_MASTER 0x02
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#define CISTPL_FUNCE_IDE_SLAVE 0x03
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/*======================================================================
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Configuration Table Entries
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======================================================================*/
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#define CISTPL_BAR_SPACE 0x07
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#define CISTPL_BAR_SPACE_IO 0x10
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#define CISTPL_BAR_PREFETCH 0x20
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#define CISTPL_BAR_CACHEABLE 0x40
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#define CISTPL_BAR_1MEG_MAP 0x80
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typedef struct cistpl_bar_t {
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u_char attr;
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u_int size;
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} cistpl_bar_t;
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typedef struct cistpl_config_t {
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u_char last_idx;
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u_int base;
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u_int rmask[4];
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u_char subtuples;
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} cistpl_config_t;
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/* These are bits in the 'present' field, and indices in 'param' */
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#define CISTPL_POWER_VNOM 0
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#define CISTPL_POWER_VMIN 1
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#define CISTPL_POWER_VMAX 2
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#define CISTPL_POWER_ISTATIC 3
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#define CISTPL_POWER_IAVG 4
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#define CISTPL_POWER_IPEAK 5
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#define CISTPL_POWER_IDOWN 6
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#define CISTPL_POWER_HIGHZ_OK 0x01
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#define CISTPL_POWER_HIGHZ_REQ 0x02
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typedef struct cistpl_power_t {
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u_char present;
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u_char flags;
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u_int param[7];
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} cistpl_power_t;
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typedef struct cistpl_timing_t {
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u_int wait, waitscale;
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u_int ready, rdyscale;
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u_int reserved, rsvscale;
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} cistpl_timing_t;
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#define CISTPL_IO_LINES_MASK 0x1f
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#define CISTPL_IO_8BIT 0x20
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#define CISTPL_IO_16BIT 0x40
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#define CISTPL_IO_RANGE 0x80
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#define CISTPL_IO_MAX_WIN 16
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typedef struct cistpl_io_t {
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u_char flags;
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u_char nwin;
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struct {
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u_int base;
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u_int len;
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} win[CISTPL_IO_MAX_WIN];
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} cistpl_io_t;
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typedef struct cistpl_irq_t {
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u_int IRQInfo1;
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u_int IRQInfo2;
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} cistpl_irq_t;
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#define CISTPL_MEM_MAX_WIN 8
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typedef struct cistpl_mem_t {
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u_char flags;
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u_char nwin;
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struct {
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u_int len;
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u_int card_addr;
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u_int host_addr;
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} win[CISTPL_MEM_MAX_WIN];
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} cistpl_mem_t;
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#define CISTPL_CFTABLE_DEFAULT 0x0001
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#define CISTPL_CFTABLE_BVDS 0x0002
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#define CISTPL_CFTABLE_WP 0x0004
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#define CISTPL_CFTABLE_RDYBSY 0x0008
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#define CISTPL_CFTABLE_MWAIT 0x0010
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#define CISTPL_CFTABLE_AUDIO 0x0800
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#define CISTPL_CFTABLE_READONLY 0x1000
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#define CISTPL_CFTABLE_PWRDOWN 0x2000
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typedef struct cistpl_cftable_entry_t {
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u_char index;
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u_short flags;
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u_char interface;
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cistpl_power_t vcc, vpp1, vpp2;
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cistpl_timing_t timing;
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cistpl_io_t io;
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cistpl_irq_t irq;
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cistpl_mem_t mem;
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u_char subtuples;
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} cistpl_cftable_entry_t;
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#define CISTPL_CFTABLE_MASTER 0x000100
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#define CISTPL_CFTABLE_INVALIDATE 0x000200
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#define CISTPL_CFTABLE_VGA_PALETTE 0x000400
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#define CISTPL_CFTABLE_PARITY 0x000800
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#define CISTPL_CFTABLE_WAIT 0x001000
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#define CISTPL_CFTABLE_SERR 0x002000
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#define CISTPL_CFTABLE_FAST_BACK 0x004000
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#define CISTPL_CFTABLE_BINARY_AUDIO 0x010000
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#define CISTPL_CFTABLE_PWM_AUDIO 0x020000
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typedef struct cistpl_cftable_entry_cb_t {
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u_char index;
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u_int flags;
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cistpl_power_t vcc, vpp1, vpp2;
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u_char io;
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cistpl_irq_t irq;
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u_char mem;
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u_char subtuples;
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} cistpl_cftable_entry_cb_t;
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typedef struct cistpl_device_geo_t {
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u_char ngeo;
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struct {
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u_char buswidth;
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u_int erase_block;
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u_int read_block;
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u_int write_block;
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u_int partition;
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u_int interleave;
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} geo[CISTPL_MAX_DEVICES];
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} cistpl_device_geo_t;
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typedef struct cistpl_vers_2_t {
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u_char vers;
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u_char comply;
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u_short dindex;
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u_char vspec8, vspec9;
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u_char nhdr;
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u_char vendor, info;
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char str[244];
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} cistpl_vers_2_t;
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typedef struct cistpl_org_t {
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u_char data_org;
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char desc[30];
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} cistpl_org_t;
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#define CISTPL_ORG_FS 0x00
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#define CISTPL_ORG_APPSPEC 0x01
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#define CISTPL_ORG_XIP 0x02
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typedef struct cistpl_format_t {
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u_char type;
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u_char edc;
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u_int offset;
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u_int length;
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} cistpl_format_t;
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#define CISTPL_FORMAT_DISK 0x00
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#define CISTPL_FORMAT_MEM 0x01
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#define CISTPL_EDC_NONE 0x00
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#define CISTPL_EDC_CKSUM 0x01
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#define CISTPL_EDC_CRC 0x02
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#define CISTPL_EDC_PCC 0x03
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typedef union cisparse_t {
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cistpl_device_t device;
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cistpl_checksum_t checksum;
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cistpl_longlink_t longlink;
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cistpl_longlink_mfc_t longlink_mfc;
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cistpl_vers_1_t version_1;
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cistpl_altstr_t altstr;
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cistpl_jedec_t jedec;
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cistpl_manfid_t manfid;
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cistpl_funcid_t funcid;
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cistpl_funce_t funce;
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cistpl_bar_t bar;
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cistpl_config_t config;
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cistpl_cftable_entry_t cftable_entry;
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cistpl_cftable_entry_cb_t cftable_entry_cb;
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cistpl_device_geo_t device_geo;
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cistpl_vers_2_t vers_2;
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cistpl_org_t org;
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cistpl_format_t format;
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} cisparse_t;
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typedef struct tuple_t {
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u_int Attributes;
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cisdata_t DesiredTuple;
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u_int Flags; /* internal use */
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u_int LinkOffset; /* internal use */
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u_int CISOffset; /* internal use */
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cisdata_t TupleCode;
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cisdata_t TupleLink;
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cisdata_t TupleOffset;
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cisdata_t TupleDataMax;
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cisdata_t TupleDataLen;
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cisdata_t *TupleData;
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} tuple_t;
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/* Special cisdata_t value */
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#define RETURN_FIRST_TUPLE 0xff
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/* Attributes for tuple calls */
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#define TUPLE_RETURN_LINK 0x01
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#define TUPLE_RETURN_COMMON 0x02
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#define CISTPL_MAX_CIS_SIZE 0x200
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#endif /* LINUX_CISTPL_H */
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