mirror of https://gitee.com/openkylin/linux.git
103 lines
3.2 KiB
C
103 lines
3.2 KiB
C
/*********************************************************************
|
|
*
|
|
* 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, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*
|
|
* 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 */
|
|
|