/*********************************************************************
*
* sir.h: include file for irda-sir device abstraction layer
*
* Copyright (c) 2002 Martin Diehl
*
* 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.
*
********************************************************************/
#ifndef IRDA_SIR_H
#define IRDA_SIR_H
#include <linux/netdevice.h>
#include <linux/workqueue.h>
#include <net/irda/irda.h>
#include <net/irda/irda_device.h> // iobuff_t
struct sir_fsm {
struct semaphore sem;
struct delayed_work work;
unsigned state, substate;
int param;
int result;
};
#define SIRDEV_STATE_WAIT_TX_COMPLETE 0x0100
/* substates for wait_tx_complete */
#define SIRDEV_STATE_WAIT_XMIT 0x0101
#define SIRDEV_STATE_WAIT_UNTIL_SENT 0x0102
#define SIRDEV_STATE_TX_DONE 0x0103
#define SIRDEV_STATE_DONGLE_OPEN 0x0300
/* 0x0301-0x03ff reserved for individual dongle substates */
#define SIRDEV_STATE_DONGLE_CLOSE 0x0400
/* 0x0401-0x04ff reserved for individual dongle substates */
#define SIRDEV_STATE_SET_DTR_RTS 0x0500
#define SIRDEV_STATE_SET_SPEED 0x0700
#define SIRDEV_STATE_DONGLE_CHECK 0x0800
#define SIRDEV_STATE_DONGLE_RESET 0x0900
/* 0x0901-0x09ff reserved for individual dongle substates */
#define SIRDEV_STATE_DONGLE_SPEED 0x0a00
/* 0x0a01-0x0aff reserved for individual dongle substates */
#define SIRDEV_STATE_PORT_SPEED 0x0b00
#define SIRDEV_STATE_DONE 0x0c00
#define SIRDEV_STATE_ERROR 0x0d00
#define SIRDEV_STATE_COMPLETE 0x0e00
#define SIRDEV_STATE_DEAD 0xffff
struct sir_dev;
struct dongle_driver {
struct module *owner;
const char *driver_name;
IRDA_DONGLE type;
int (*open)(struct sir_dev *dev);
int (*close)(struct sir_dev *dev);
int (*reset)(struct sir_dev *dev);
int (*set_speed)(struct sir_dev *dev, unsigned speed);
struct list_head dongle_list;
};
struct sir_driver {
struct module *owner;
const char *driver_name;
int qos_mtt_bits;
int (*chars_in_buffer)(struct sir_dev *dev);
void (*wait_until_sent)(struct sir_dev *dev);
int (*set_speed)(struct sir_dev *dev, unsigned speed);
int (*set_dtr_rts)(struct sir_dev *dev, int dtr, int rts);
int (*do_write)(struct sir_dev *dev, const unsigned char *ptr, size_t len);
int (*start_dev)(struct sir_dev *dev);
int (*stop_dev)(struct sir_dev *dev);
};
/* exported */
extern int irda_register_dongle(struct dongle_driver *new);
extern int irda_unregister_dongle(struct dongle_driver *drv);
extern struct sir_dev * sirdev_get_instance(const struct sir_driver *drv, const char *name);
extern int sirdev_put_instance(struct sir_dev *self);
extern int sirdev_set_dongle(struct sir_dev *dev, IRDA_DONGLE type);
extern void sirdev_write_complete(struct sir_dev *dev);
extern int sirdev_receive(struct sir_dev *dev, const unsigned char *cp, size_t count);
/* low level helpers for SIR device/dongle setup */
extern int sirdev_raw_write(struct sir_dev *dev, const char *buf, int len);
extern int sirdev_raw_read(struct sir_dev *dev, char *buf, int len);
extern int sirdev_set_dtr_rts(struct sir_dev *dev, int dtr, int rts);
/* not exported */
extern int sirdev_get_dongle(struct sir_dev *self, IRDA_DONGLE type);
extern int sirdev_put_dongle(struct sir_dev *self);
extern void sirdev_enable_rx(struct sir_dev *dev);
extern int sirdev_schedule_request(struct sir_dev *dev, int state, unsigned param);
/* inline helpers */
static inline int sirdev_schedule_speed(struct sir_dev *dev, unsigned speed)
{
return sirdev_schedule_request(dev, SIRDEV_STATE_SET_SPEED, speed);
}
static inline int sirdev_schedule_dongle_open(struct sir_dev *dev, int dongle_id)
{
return sirdev_schedule_request(dev, SIRDEV_STATE_DONGLE_OPEN, dongle_id);
}
static inline int sirdev_schedule_dongle_close(struct sir_dev *dev)
{
return sirdev_schedule_request(dev, SIRDEV_STATE_DONGLE_CLOSE, 0);
}
static inline int sirdev_schedule_dtr_rts(struct sir_dev *dev, int dtr, int rts)
{
int dtrrts;
dtrrts = ((dtr) ? 0x02 : 0x00) | ((rts) ? 0x01 : 0x00);
return sirdev_schedule_request(dev, SIRDEV_STATE_SET_DTR_RTS, dtrrts);
}
#if 0
static inline int sirdev_schedule_mode(struct sir_dev *dev, int mode)
{
return sirdev_schedule_request(dev, SIRDEV_STATE_SET_MODE, mode);
}
#endif
struct sir_dev {
struct net_device *netdev;
struct net_device_stats stats;
struct irlap_cb *irlap;
struct qos_info qos;
char hwname[32];
struct sir_fsm fsm;
atomic_t enable_rx;
int raw_tx;
spinlock_t tx_lock;
u32 new_speed;
u32 flags;
unsigned speed;
iobuff_t tx_buff; /* Transmit buffer */
iobuff_t rx_buff; /* Receive buffer */
struct sk_buff *tx_skb;
const struct dongle_driver * dongle_drv;
const struct sir_driver * drv;
void *priv;
};
#endif /* IRDA_SIR_H */
