include/net/irda/parameters.h

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 1 /*********************************************************************
 2  *
 3  * Filename: parameters.h
 4  * Version: 1.0
 5  * Description: A more general way to handle (pi,pl,pv) parameters
 6  * Status: Experimental.
 7  * Author: Dag Brattli <dagb@cs.uit.no>
 8  * Created at: Mon Jun 7 08:47:28 1999
 9  * Modified at: Sun Jun 13 09:17:54 1999
 10  * Modified by: Dag Brattli <dagb@cs.uit.no>
 11  *
 12  * Copyright (c) 1999 Dag Brattli, All Rights Reserved.
 13  *
 14  * This program is free software; you can redistribute it and/or
 15  * modify it under the terms of the GNU General Public License as
 16  * published by the Free Software Foundation; either version 2 of
 17  * the License, or (at your option) any later version.
 18  *
 19  * This program is distributed in the hope that it will be useful,
 20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 22  * GNU General Public License for more details.
 23  *
 24  * You should have received a copy of the GNU General Public License
 25  * along with this program; if not, write to the Free Software
 26  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 27  * MA 02111-1307 USA
 28  *
 29  ********************************************************************/
 30
 31 #ifndef IRDA_PARAMS_H
 32 #define IRDA_PARAMS_H
 33
 34 /*
 35  * The currently supported types. Beware not to change the sequence since
 36  * it a good reason why the sized integers has a value equal to their size
 37  */
 38 typedefenum{
 39  PV_INTEGER,/* Integer of any (pl) length */
 40  PV_INT_8_BITS,/* Integer of 8 bits in length */
 41  PV_INT_16_BITS,/* Integer of 16 bits in length */
 42  PV_STRING,/* \0 terminated string */
 43  PV_INT_32_BITS,/* Integer of 32 bits in length */
 44  PV_OCT_SEQ,/* Octet sequence */
 45  PV_NO_VALUE /* Does not contain any value (pl=0) */
 46 } PV_TYPE;
 47
 48 /* Bit 7 of type field */
 49 #define PV_BIG_ENDIAN 0x80
 50 #define PV_LITTLE_ENDIAN 0x00
 51 #define PV_MASK 0x7f/* To mask away endian bit */
 52
 53 #define PV_PUT 0
 54 #define PV_GET 1
 55
 56 typedefunion{
 57 char*c;
 58  __u8 b;
 59  __u16 s;
 60  __u32 i;
 61  __u8 *bp;
 62  __u16 *sp;
 63  __u32 *ip;
 64 } pv_t;
 65
 66 typedefstruct{
 67  __u8 pi;
 68  __u8 pl;
 69  pv_t pv;
 70 } param_t;
 71
 72 typedefint(*PI_HANDLER)(void*self, param_t *param,int get);
 73 typedefint(*PV_HANDLER)(void*self, __u8 *buf,int len, __u8 pi,
 74  PV_TYPE type, PI_HANDLER func);
 75
 76 typedefstruct{
 77  PI_HANDLER func;/* Handler for this parameter identifier */
 78  PV_TYPE type;/* Data type for this parameter */
 79 } pi_minor_info_t;
 80
 81 typedefstruct{
 82  pi_minor_info_t *pi_minor_call_table;
 83 int len;
 84 } pi_major_info_t;
 85
 86 typedefstruct{
 87  pi_major_info_t *tables;
 88 int len;
 89  __u8 pi_mask;
 90 int pi_major_offset;
 91 } pi_param_info_t;
 92
 93 intirda_param_pack(__u8 *buf,char*fmt, ...);
 94 intirda_param_unpack(__u8 *buf,char*fmt, ...);
 95
 96 intirda_param_insert(void*self, __u8 pi, __u8 *buf,int len,
 97  pi_param_info_t *info);
 98 intirda_param_extract(void*self, __u8 *buf,int len, pi_param_info_t *info);
 99 intirda_param_extract_all(void*self, __u8 *buf,int len,
 100  pi_param_info_t *info);
 101
 102 extern inlineintirda_param_insert_byte(__u8 *buf, __u8 pi, __u8 pv)
 103 {
 104 returnirda_param_pack(buf,"bbb", pi,1, pv);
 105 }
 106
 107 #endif/* IRDA_PARAMS_H */
 108