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/*********************************************************************
*
* Filename: parameters.h
* Version: 1.0
* Description: A more general way to handle (pi,pl,pv) parameters
* Status: Experimental.
* Author: Dag Brattli <dagb@cs.uit.no>
* Created at: Mon Jun 7 08:47:28 1999
* Modified at: Sun Jan 30 14:05:14 2000
* Modified by: Dag Brattli <dagb@cs.uit.no>
*
* Copyright (c) 1999-2000 Dag Brattli, All Rights Reserved.
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*
* Michel Dänzer <daenzer@debian.org>, 10/2001
* - simplify irda_pv_t to avoid endianness issues
*
********************************************************************/
#ifndef IRDA_PARAMS_H
#define IRDA_PARAMS_H
/*
* The currently supported types. Beware not to change the sequence since
* it a good reason why the sized integers has a value equal to their size
*/
typedef enum {
PV_INTEGER, /* Integer of any (pl) length */
PV_INT_8_BITS, /* Integer of 8 bits in length */
PV_INT_16_BITS, /* Integer of 16 bits in length */
PV_STRING, /* \0 terminated string */
PV_INT_32_BITS, /* Integer of 32 bits in length */
PV_OCT_SEQ, /* Octet sequence */
PV_NO_VALUE /* Does not contain any value (pl=0) */
} PV_TYPE;
/* Bit 7 of type field */
#define PV_BIG_ENDIAN 0x80
#define PV_LITTLE_ENDIAN 0x00
#define PV_MASK 0x7f /* To mask away endian bit */
#define PV_PUT 0
#define PV_GET 1
typedef union {
char *c;
__u32 i;
__u32 *ip;
} irda_pv_t;
typedef struct {
__u8 pi;
__u8 pl;
irda_pv_t pv;
} irda_param_t;
typedef int (*PI_HANDLER)(void *self, irda_param_t *param, int get);
typedef int (*PV_HANDLER)(void *self, __u8 *buf, int len, __u8 pi,
PV_TYPE type, PI_HANDLER func);
typedef struct {
PI_HANDLER func; /* Handler for this parameter identifier */
PV_TYPE type; /* Data type for this parameter */
} pi_minor_info_t;
typedef struct {
pi_minor_info_t *pi_minor_call_table;
int len;
} pi_major_info_t;
typedef struct {
pi_major_info_t *tables;
int len;
__u8 pi_mask;
int pi_major_offset;
} pi_param_info_t;
int irda_param_pack(__u8 *buf, char *fmt, ...);
int irda_param_insert(void *self, __u8 pi, __u8 *buf, int len,
pi_param_info_t *info);
int irda_param_extract_all(void *self, __u8 *buf, int len,
pi_param_info_t *info);
#define irda_param_insert_byte(buf,pi,pv) irda_param_pack(buf,"bbb",pi,1,pv)
#endif /* IRDA_PARAMS_H */
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