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 Jan 30 14:05:14 2000 10 * Modified by: Dag Brattli <dagb@cs.uit.no> 11 * 12 * Copyright (c) 1999-2000 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 * Michel Dänzer <daenzer@debian.org>, 10/2001 30 * - simplify irda_pv_t to avoid endianness issues 31 * 32 ********************************************************************/ 33 34#ifndef IRDA_PARAMS_H 35#define IRDA_PARAMS_H 36 37/* 38 * The currently supported types. Beware not to change the sequence since 39 * it a good reason why the sized integers has a value equal to their size 40 */ 41typedef enum { 42 PV_INTEGER, /* Integer of any (pl) length */ 43 PV_INT_8_BITS, /* Integer of 8 bits in length */ 44 PV_INT_16_BITS, /* Integer of 16 bits in length */ 45 PV_STRING, /* \0 terminated string */ 46 PV_INT_32_BITS, /* Integer of 32 bits in length */ 47 PV_OCT_SEQ, /* Octet sequence */ 48 PV_NO_VALUE /* Does not contain any value (pl=0) */ 49} PV_TYPE; 50 51/* Bit 7 of type field */ 52#define PV_BIG_ENDIAN 0x80 53#define PV_LITTLE_ENDIAN 0x00 54#define PV_MASK 0x7f /* To mask away endian bit */ 55 56#define PV_PUT 0 57#define PV_GET 1 58 59typedef union { 60 char *c; 61 __u32 i; 62 __u32 *ip; 63} irda_pv_t; 64 65typedef struct { 66 __u8 pi; 67 __u8 pl; 68 irda_pv_t pv; 69} irda_param_t; 70 71typedef int (*PI_HANDLER)(void *self, irda_param_t *param, int get); 72typedef int (*PV_HANDLER)(void *self, __u8 *buf, int len, __u8 pi, 73 PV_TYPE type, PI_HANDLER func); 74 75typedef struct { 76 PI_HANDLER func; /* Handler for this parameter identifier */ 77 PV_TYPE type; /* Data type for this parameter */ 78} pi_minor_info_t; 79 80typedef struct { 81 pi_minor_info_t *pi_minor_call_table; 82 int len; 83} pi_major_info_t; 84 85typedef struct { 86 pi_major_info_t *tables; 87 int len; 88 __u8 pi_mask; 89 int pi_major_offset; 90} pi_param_info_t; 91 92int irda_param_pack(__u8 *buf, char *fmt, ...); 93 94int irda_param_insert(void *self, __u8 pi, __u8 *buf, int len, 95 pi_param_info_t *info); 96int irda_param_extract_all(void *self, __u8 *buf, int len, 97 pi_param_info_t *info); 98 99#define irda_param_insert_byte(buf,pi,pv) irda_param_pack(buf,"bbb",pi,1,pv) 100 101#endif /* IRDA_PARAMS_H */ 102 103