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192 lines
4.8 KiB
C
192 lines
4.8 KiB
C
/*********************************************************************
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*
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* sir.h: include file for irda-sir device abstraction layer
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*
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* Copyright (c) 2002 Martin Diehl
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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********************************************************************/
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#ifndef IRDA_SIR_H
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#define IRDA_SIR_H
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#include <linux/netdevice.h>
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#include <linux/workqueue.h>
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#include <net/irda/irda.h>
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#include <net/irda/irda_device.h> // iobuff_t
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struct sir_fsm {
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struct semaphore sem;
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struct delayed_work work;
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unsigned state, substate;
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int param;
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int result;
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};
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#define SIRDEV_STATE_WAIT_TX_COMPLETE 0x0100
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/* substates for wait_tx_complete */
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#define SIRDEV_STATE_WAIT_XMIT 0x0101
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#define SIRDEV_STATE_WAIT_UNTIL_SENT 0x0102
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#define SIRDEV_STATE_TX_DONE 0x0103
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#define SIRDEV_STATE_DONGLE_OPEN 0x0300
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/* 0x0301-0x03ff reserved for individual dongle substates */
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#define SIRDEV_STATE_DONGLE_CLOSE 0x0400
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/* 0x0401-0x04ff reserved for individual dongle substates */
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#define SIRDEV_STATE_SET_DTR_RTS 0x0500
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#define SIRDEV_STATE_SET_SPEED 0x0700
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#define SIRDEV_STATE_DONGLE_CHECK 0x0800
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#define SIRDEV_STATE_DONGLE_RESET 0x0900
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/* 0x0901-0x09ff reserved for individual dongle substates */
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#define SIRDEV_STATE_DONGLE_SPEED 0x0a00
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/* 0x0a01-0x0aff reserved for individual dongle substates */
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#define SIRDEV_STATE_PORT_SPEED 0x0b00
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#define SIRDEV_STATE_DONE 0x0c00
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#define SIRDEV_STATE_ERROR 0x0d00
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#define SIRDEV_STATE_COMPLETE 0x0e00
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#define SIRDEV_STATE_DEAD 0xffff
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struct sir_dev;
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struct dongle_driver {
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struct module *owner;
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const char *driver_name;
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IRDA_DONGLE type;
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int (*open)(struct sir_dev *dev);
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int (*close)(struct sir_dev *dev);
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int (*reset)(struct sir_dev *dev);
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int (*set_speed)(struct sir_dev *dev, unsigned speed);
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struct list_head dongle_list;
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};
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struct sir_driver {
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struct module *owner;
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const char *driver_name;
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int qos_mtt_bits;
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int (*chars_in_buffer)(struct sir_dev *dev);
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void (*wait_until_sent)(struct sir_dev *dev);
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int (*set_speed)(struct sir_dev *dev, unsigned speed);
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int (*set_dtr_rts)(struct sir_dev *dev, int dtr, int rts);
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int (*do_write)(struct sir_dev *dev, const unsigned char *ptr, size_t len);
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int (*start_dev)(struct sir_dev *dev);
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int (*stop_dev)(struct sir_dev *dev);
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};
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/* exported */
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extern int irda_register_dongle(struct dongle_driver *new);
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extern int irda_unregister_dongle(struct dongle_driver *drv);
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extern struct sir_dev * sirdev_get_instance(const struct sir_driver *drv, const char *name);
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extern int sirdev_put_instance(struct sir_dev *self);
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extern int sirdev_set_dongle(struct sir_dev *dev, IRDA_DONGLE type);
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extern void sirdev_write_complete(struct sir_dev *dev);
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extern int sirdev_receive(struct sir_dev *dev, const unsigned char *cp, size_t count);
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/* low level helpers for SIR device/dongle setup */
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extern int sirdev_raw_write(struct sir_dev *dev, const char *buf, int len);
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extern int sirdev_raw_read(struct sir_dev *dev, char *buf, int len);
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extern int sirdev_set_dtr_rts(struct sir_dev *dev, int dtr, int rts);
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/* not exported */
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extern int sirdev_get_dongle(struct sir_dev *self, IRDA_DONGLE type);
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extern int sirdev_put_dongle(struct sir_dev *self);
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extern void sirdev_enable_rx(struct sir_dev *dev);
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extern int sirdev_schedule_request(struct sir_dev *dev, int state, unsigned param);
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/* inline helpers */
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static inline int sirdev_schedule_speed(struct sir_dev *dev, unsigned speed)
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{
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return sirdev_schedule_request(dev, SIRDEV_STATE_SET_SPEED, speed);
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}
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static inline int sirdev_schedule_dongle_open(struct sir_dev *dev, int dongle_id)
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{
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return sirdev_schedule_request(dev, SIRDEV_STATE_DONGLE_OPEN, dongle_id);
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}
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static inline int sirdev_schedule_dongle_close(struct sir_dev *dev)
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{
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return sirdev_schedule_request(dev, SIRDEV_STATE_DONGLE_CLOSE, 0);
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}
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static inline int sirdev_schedule_dtr_rts(struct sir_dev *dev, int dtr, int rts)
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{
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int dtrrts;
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dtrrts = ((dtr) ? 0x02 : 0x00) | ((rts) ? 0x01 : 0x00);
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return sirdev_schedule_request(dev, SIRDEV_STATE_SET_DTR_RTS, dtrrts);
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}
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#if 0
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static inline int sirdev_schedule_mode(struct sir_dev *dev, int mode)
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{
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return sirdev_schedule_request(dev, SIRDEV_STATE_SET_MODE, mode);
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}
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#endif
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struct sir_dev {
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struct net_device *netdev;
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struct net_device_stats stats;
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struct irlap_cb *irlap;
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struct qos_info qos;
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char hwname[32];
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struct sir_fsm fsm;
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atomic_t enable_rx;
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int raw_tx;
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spinlock_t tx_lock;
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u32 new_speed;
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u32 flags;
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unsigned speed;
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iobuff_t tx_buff; /* Transmit buffer */
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iobuff_t rx_buff; /* Receive buffer */
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struct sk_buff *tx_skb;
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const struct dongle_driver * dongle_drv;
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const struct sir_driver * drv;
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void *priv;
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};
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#endif /* IRDA_SIR_H */
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