101 lines
3.1 KiB
C
101 lines
3.1 KiB
C
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/*********************************************************************
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*
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* Filename: parameters.h
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* Version: 1.0
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* Description: A more general way to handle (pi,pl,pv) parameters
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* Status: Experimental.
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* Author: Dag Brattli <dagb@cs.uit.no>
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* Created at: Mon Jun 7 08:47:28 1999
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* Modified at: Sun Jan 30 14:05:14 2000
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* Modified by: Dag Brattli <dagb@cs.uit.no>
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*
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* Copyright (c) 1999-2000 Dag Brattli, All Rights Reserved.
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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 as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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* Michel Dänzer <daenzer@debian.org>, 10/2001
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* - simplify irda_pv_t to avoid endianness issues
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*
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********************************************************************/
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#ifndef IRDA_PARAMS_H
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#define IRDA_PARAMS_H
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/*
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* The currently supported types. Beware not to change the sequence since
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* it a good reason why the sized integers has a value equal to their size
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*/
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typedef enum {
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PV_INTEGER, /* Integer of any (pl) length */
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PV_INT_8_BITS, /* Integer of 8 bits in length */
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PV_INT_16_BITS, /* Integer of 16 bits in length */
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PV_STRING, /* \0 terminated string */
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PV_INT_32_BITS, /* Integer of 32 bits in length */
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PV_OCT_SEQ, /* Octet sequence */
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PV_NO_VALUE /* Does not contain any value (pl=0) */
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} PV_TYPE;
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/* Bit 7 of type field */
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#define PV_BIG_ENDIAN 0x80
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#define PV_LITTLE_ENDIAN 0x00
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#define PV_MASK 0x7f /* To mask away endian bit */
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#define PV_PUT 0
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#define PV_GET 1
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typedef union {
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char *c;
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__u32 i;
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__u32 *ip;
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} irda_pv_t;
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typedef struct {
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__u8 pi;
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__u8 pl;
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irda_pv_t pv;
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} irda_param_t;
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typedef int (*PI_HANDLER)(void *self, irda_param_t *param, int get);
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typedef int (*PV_HANDLER)(void *self, __u8 *buf, int len, __u8 pi,
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PV_TYPE type, PI_HANDLER func);
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typedef struct {
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const PI_HANDLER func; /* Handler for this parameter identifier */
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PV_TYPE type; /* Data type for this parameter */
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} pi_minor_info_t;
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typedef struct {
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const pi_minor_info_t *pi_minor_call_table;
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int len;
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} pi_major_info_t;
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typedef struct {
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const pi_major_info_t *tables;
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int len;
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__u8 pi_mask;
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int pi_major_offset;
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} pi_param_info_t;
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int irda_param_pack(__u8 *buf, char *fmt, ...);
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int irda_param_insert(void *self, __u8 pi, __u8 *buf, int len,
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pi_param_info_t *info);
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int irda_param_extract_all(void *self, __u8 *buf, int len,
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pi_param_info_t *info);
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#define irda_param_insert_byte(buf,pi,pv) irda_param_pack(buf,"bbb",pi,1,pv)
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#endif /* IRDA_PARAMS_H */
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