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/*********************************************************************
*
* Filename: ircomm_common.h
* Version:
* Description: An implementation of IrCOMM service interface and state machine
* Status: Experimental.
* Author: Takahide Higuchi <thiguchi@pluto.dti.ne.jp>
*
* Copyright (c) 1998, Takahide Higuchi, <thiguchi@pluto.dti.ne.jp>,
* 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.
*
* I, Takahide Higuchi, provide no warranty for any of this software.
* This material is provided "AS-IS" and at no charge.
*
********************************************************************/
/* #define DEBUG(n, args...) printk( KERN_DEBUG args) */ /* enable all debug message */
#include <linux/types.h>
#include <net/irda/irmod.h>
typedef enum {
COMM_DISCOVERY,
COMM_IDLE,
COMM_WAITI,
COMM_WAITR,
COMM_CONN,
} IRCOMM_STATE;
/* IrCOMM Events */
typedef enum {
IRCOMM_CONNECT_REQUEST,
TTP_CONNECT_INDICATION,
LMP_CONNECT_INDICATION,
TTP_CONNECT_CONFIRM,
TTP_DISCONNECT_INDICATION,
LMP_CONNECT_CONFIRM,
LMP_DISCONNECT_INDICATION,
IRCOMM_CONNECT_RESPONSE,
IRCOMM_DISCONNECT_REQUEST,
TTP_DATA_INDICATION,
IRCOMM_DATA_REQUEST,
LMP_DATA_INDICATION,
IRCOMM_CONTROL_REQUEST,
} IRCOMM_EVENT;
#define IRCOMM_MAGIC 0x434f4d4d
#define COMM_INIT_CTRL_PARAM 3 /* length of initial control parameters */
#define COMM_CTRL_MIN 1 /* length of clen field */
#define COMM_HEADER_SIZE (LAP_HEADER+LMP_HEADER+TTP_HEADER+COMM_CTRL_MIN)
#define COMM_DEFAULT_DATA_SIZE 64
#define IRCOMM_MAX_CONNECTION 1 /* Don't change */
#define IAS_PARAM 1
#define CONTROL_CHANNEL 2
#define UNKNOWN 0x00 /* not defined yet. */
/* we use 9wire if servicetype=DEFAULT, but is it good? */
#define DEFAULT 0x0a /* private number */
#define THREE_WIRE_RAW 0x01 /* bit 0 */
#define THREE_WIRE 0x02 /* bit 1 */
#define NINE_WIRE 0x04 /* bit 2 */
#define CENTRONICS 0x08 /* bit 3 */
#define SERIAL 0x01 /* bit 0 */
#define PARALLEL 0x02 /* bit 1 */
#define SERVICETYPE 0x00
#define PORT_TYPE 0x02
#define PORT_NAME 0x02
#define FIXED_PORT_NAME 0x82
#define DATA_RATE 0x10
#define DATA_FORMAT 0x11
#define FLOW_CONTROL 0x12
#define XON_XOFF_CHAR 0x13
#define ENQ_ACK_CHAR 0x14
#define LINESTATUS 0x15
#define BREAK_SIGNAL 0x16
#define DTELINE_STATE 0x20
#define DCELINE_STATE 0x21
#define POLL_FOR_LINE_SETTINGS 0x22
#define STATUS_QUERY 0x30
#define SET_BUSY_TIMEOUT 0x31
#define IEEE1284_MODE_SUPPORT 0x32
#define IEEE1284_DEVICEID 0x33
#define IEEE1284_MODE 0x34
#define IEEE1284_ECP_EPP_DATA_TRANSFER 0x35
#define TX_READY 0xFE /* FIXME: this is not defined in IrCOMM spec */
#define TX_BUSY 0XFF /* so we should find another way */
/* parameters of FLOW_CONTROL */
#define USE_RTS 0x08 /* use RTS on output */
#define USE_CTS 0x04 /* use CTS on input */
#define USE_DTR 0x20 /* use DTR on output */
/* parameters of DTELINE_STATE */
#define DELTA_DTR 0x01
#define DELTA_RTS 0x02
#define MCR_DTR 0x04
#define MCR_RTS 0x08
/* parameters of DCELINE_STATE */
#define DELTA_CTS 0x01
#define DELTA_DSR 0x02
#define DELTA_RI 0x04
#define DELTA_DCD 0x08
#define MSR_CTS 0x10
#define MSR_DSR 0x20
#define MSR_RI 0x40
#define MSR_DCD 0x80
/* parameters of DATA_FORMAT */
#define LSR_OE 0x02 /* Overrun error indicator */
#define LSR_PE 0x04 /* Parity error indicator */
#define LSR_FE 0x08 /* Frame error indicator */
#define LSR_BI 0x01 /* Break interrupt indicator */
struct ircomm_cb{
int magic;
int state; /* Current state of IrCOMM layer:
* DISCOVERY,COMM_IDLE, COMM_WAITR,
* COMM_WAITI, COMM_CONN
*/
int in_use;
int null_modem_mode; /* switch for null modem emulation */
int ttp_stop;
int max_txbuff_size;
int maxsdusize;
__u32 daddr; /* Device address of the peer device */
void (*d_handler)(struct ircomm_cb *self);
struct notify_t notify; /* container of callbacks */
struct sk_buff *ctrl_skb; /* queue of control channel */
struct tsap_cb *tsap; /* IrTTP/LMP handle */
struct qos_info *qos; /* Quality of Service */
int reason; /* I don't know about reason:
see Irlmp.c or somewhere :p)*/
__u8 dlsap; /* IrLMP dlsap */
__u8 lsap; /* sap of local device */
__u8 pi ; /* instruction of control channel*/
__u8 port_type;
__u8 peer_port_type;
__u8 servicetype;
__u8 peer_servicetype;
__u8 data_format;
__u8 peer_data_format;
__u8 flow_ctrl;
__u8 peer_flow_ctrl;
__u8 line_status;
__u8 peer_line_status;
__u8 break_signal;
__u8 peer_break_signal;
__u8 dte;
__u8 peer_dte;
__u8 dce;
__u8 peer_dce;
__u8 xon_char;
__u8 xoff_char;
__u8 peer_xon_char;
__u8 peer_xoff_char;
__u8 enq_char;
__u8 ack_char;
__u8 peer_enq_char;
__u8 peer_ack_char;
__u8 busy_timeout;
__u8 peer_busy_timeout;
__u8 ecp_epp_mode;
__u8 peer_ecp_epp_mode;
__u8 channel_or_addr;
__u8 peer_channel_or_addr;
__u32 data_rate;
__u32 peer_data_rate;
char port_name[60];
};
void ircomm_connect_request(struct ircomm_cb *self, int maxsdusize);
void ircomm_connect_response(struct ircomm_cb *self, struct sk_buff *userdata,
int maxsdusize);
void ircomm_disconnect_request(struct ircomm_cb *self,
struct sk_buff *userdata);
void ircomm_data_request(struct ircomm_cb *self,
struct sk_buff *userdata);
void ircomm_control_request(struct ircomm_cb *self);
void ircomm_append_ctrl(struct ircomm_cb *self, __u8 instruction);
struct ircomm_cb *ircomm_attach_cable( __u8 servicetype, struct notify_t notify,
void *handler);
int ircomm_detach_cable(struct ircomm_cb *self);
void ircomm_accept_data_indication(void *instance, void *sap, struct sk_buff *skb);
void ircomm_accept_connect_confirm(void *instance, void *sap, struct qos_info *qos,
int maxsdusize, struct sk_buff *skb);
void ircomm_accept_connect_indication(void *instance, void *sap,
struct qos_info *qos,
int maxsdusize, struct sk_buff *skb);
void ircomm_accept_disconnect_indication(void *instance, void *sap, LM_REASON reason,
struct sk_buff *skb);
void ircomm_accept_flow_indication(void *instance, void *sap, LOCAL_FLOW flow);
void ircomm_next_state( struct ircomm_cb *self, IRCOMM_STATE state);
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