294da3abaa
There are a mix of function prototypes with and without extern in the kernel sources. Standardize on not using extern for function prototypes. Function prototypes don't need to be written with extern. extern is assumed by the compiler. Its use is as unnecessary as using auto to declare automatic/local variables in a block. Signed-off-by: Joe Perches <joe@perches.com>
191 lines
4.7 KiB
C
191 lines
4.7 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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int irda_register_dongle(struct dongle_driver *new);
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int irda_unregister_dongle(struct dongle_driver *drv);
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struct sir_dev *sirdev_get_instance(const struct sir_driver *drv,
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const char *name);
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int sirdev_put_instance(struct sir_dev *self);
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int sirdev_set_dongle(struct sir_dev *dev, IRDA_DONGLE type);
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void sirdev_write_complete(struct sir_dev *dev);
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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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int sirdev_raw_write(struct sir_dev *dev, const char *buf, int len);
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int sirdev_raw_read(struct sir_dev *dev, char *buf, int len);
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int sirdev_set_dtr_rts(struct sir_dev *dev, int dtr, int rts);
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/* not exported */
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int sirdev_get_dongle(struct sir_dev *self, IRDA_DONGLE type);
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int sirdev_put_dongle(struct sir_dev *self);
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void sirdev_enable_rx(struct sir_dev *dev);
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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 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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