irlap.h

这个是从国外弄到的一个红外协议栈

/*
  Copyright (C) 2002-2003 Gerd Rausch, BlauLogic (http://blaulogic.com)
  All rights reserved.

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions
  are met:

  1. Redistributions of source code must retain the above copyright
     notice, this list of conditions and the following disclaimer.

  2. Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in the
     documentation and/or other materials provided with the distribution.

  3. Except as contained in this notice, neither the name of BlauLogic
     nor the name(s) of the author(s) may be used to endorse or promote
     products derived from this software without specific prior written
     permission.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  IN NO EVENT SHALL THE AUTHOR(S) OR BLAULOGIC BE LIABLE FOR ANY CLAIM,
  DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
  THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

#ifndef _IRLAP_H
#define _IRLAP_H

#include <inttypes.h>

#define IRLAP_DATA_SIZE			128
#define IRLAP_SMALL_DATA_SIZE		32

#define IRLAP_VERSION			0x00

#define IRLAP_ADDR_NULL			0x00
#define IRLAP_ADDR_BROADCAST		0xFE
#define IRLAP_ADDR_C_TEST		0x01

#define IRLAP_CTRL_I_TEST		0x01
#define IRLAP_CTRL_S_TEST		0x02
#define IRLAP_CTRL_P_F_MASK		0x10
#define IRLAP_CTRL_U_MASK		0xEF
#define IRLAP_CTRL_S_MASK		0x0F
#define IRLAP_CTRL_U_SNRM_CMD		0x83
#define IRLAP_CTRL_U_DISC_CMD		0x43
#define IRLAP_CTRL_U_UI_CMD		0x03
#define IRLAP_CTRL_U_XID_CMD		0x2F
#define IRLAP_CTRL_U_TEST_CMD		0xE3
#define IRLAP_CTRL_U_RNRM_RESP		0x83
#define IRLAP_CTRL_U_UA_RESP		0x63
#define IRLAP_CTRL_U_FRMR_RESP		0x87
#define IRLAP_CTRL_U_DM_RESP		0x0F
#define IRLAP_CTRL_U_RD_RESP		0x43
#define IRLAP_CTRL_U_UI_RESP		0x03
#define IRLAP_CTRL_U_XID_RESP		0xAF
#define IRLAP_CTRL_U_TEST_RESP		0xE3
#define IRLAP_CTRL_S_RR			0x01
#define IRLAP_CTRL_S_RNR		0x05
#define IRLAP_CTRL_S_REJ		0x09
#define IRLAP_CTRL_S_SREJ		0x0D

#define IRLAP_CTRL_NR_BIT_POS		5
#define IRLAP_CTRL_NS_BIT_POS		1
#define IRLAP_CTRL_N_MASK		7

#define IRLAP_XID_FMT_DISCOVERY		0x01

#define IRLAP_XID_FLAGS_SLOTS_MASK	0x03
#define IRLAP_XID_FLAGS_SLOTS_1		0x00
#define IRLAP_XID_FLAGS_SLOTS_6		0x01
#define IRLAP_XID_FLAGS_SLOTS_8		0x02
#define IRLAP_XID_FLAGS_SLOTS_16	0x03
#define IRLAP_XID_FLAGS_NEW_DEV		0x04

#define IRLAP_PAR_BAUD_RATE		0x01
#define IRLAP_PAR_MAX_TURN_TIME		0x82
#define IRLAP_PAR_DATA_SIZE		0x83
#define IRLAP_PAR_WINDOW_SIZE		0x84
#define IRLAP_PAR_ADD_BOFS		0x85
#define IRLAP_PAR_MIN_TURN_TIME		0x86
#define IRLAP_PAR_DISC_TIME		0x08

typedef uint8_t IrLAP_Device_Addr[4];

typedef struct IrLAP_Context {
  IrLAP_Device_Addr dev_addr;
  uint8_t conn_addr;
  uint8_t vr, vs;
} IrLAP_Context;

typedef struct IrLAP_Head {
  uint8_t addr;
  uint8_t ctrl;
} IrLAP_Head;

typedef struct IrLAP_Neg_Param {
  uint8_t id;
  uint8_t len;
  uint8_t value[0];
} IrLAP_Neg_Param;

typedef struct IrLAP_Test {
  IrLAP_Device_Addr source;
  IrLAP_Device_Addr dest;
  uint8_t info[0];
} IrLAP_Test;

typedef struct IrLAP_Discovery {
  uint8_t format;
  IrLAP_Device_Addr source;
  IrLAP_Device_Addr dest;
  uint8_t flags;
  uint8_t slot;
  uint8_t version;
  uint8_t info[0];
} IrLAP_Discovery;

typedef struct IrLAP_SNRM {
  IrLAP_Device_Addr source;
  IrLAP_Device_Addr dest;
  uint8_t conn_addr;
  uint8_t info[0];
} IrLAP_SNRM;

typedef struct IrLAP_UA {
  IrLAP_Device_Addr source;
  IrLAP_Device_Addr dest;
  uint8_t info[0];
} IrLAP_UA;

typedef struct IrLAP_Frame {
  IrLAP_Head head;
  union {
    IrLAP_Test test;
    IrLAP_Discovery discovery;
    IrLAP_SNRM snrm;
    IrLAP_UA ua;
    uint8_t data[IRLAP_DATA_SIZE+2];
  } u;
} IrLAP_Frame;

typedef struct IrLAP_Small_Frame {
  IrLAP_Head head;
  union {
    IrLAP_Test test;
    IrLAP_Discovery discovery;
    IrLAP_SNRM snrm;
    IrLAP_UA ua;
    uint8_t data[IRLAP_SMALL_DATA_SIZE];
  } u;
} IrLAP_Small_Frame;

uint16_t irlap_append_neg_params(uint8_t *info_p);
uint8_t irlap_matching_dest_addr(IrLAP_Context *context_p, IrLAP_Device_Addr addr_p);

void irlap_init_context(IrLAP_Context *context_p);

void irlap_send_frame(IrLAP_Frame *frame_p, uint16_t size);
int16_t irlap_receive_frame(IrLAP_Frame *frame_p);

uint8_t irlap1_connect(IrLAP_Context *context_p, IrLAP_Frame *resp_p,
		       IrLAP_Device_Addr addr_p,
		       uint16_t (*get_dev_info_cb)(uint8_t *dev_info_p, uint8_t user_data),
		       uint8_t get_dev_info_user_data);
uint8_t irlap1_disconnect(IrLAP_Context *context_p, IrLAP_Frame *resp_p);
int16_t irlap1_send_receive_i_frame(IrLAP_Context *context_p,
				    IrLAP_Frame *req_p, uint16_t req_size,
				    IrLAP_Frame *resp_p);

void irlap2_send_i_frame(IrLAP_Context *context_p, IrLAP_Frame *frame_p, uint16_t size);
int16_t irlap2_receive_i_frame(IrLAP_Context *context_p, IrLAP_Frame *frame_p,
			       IrLAP_Frame *last_resp_p, uint16_t last_resp_size,
			       uint16_t (*get_dev_info_cb)(uint8_t *dev_info_p, uint8_t user_data),
			       uint8_t get_dev_info_user_data);

#endif /* _IRLAP_H */