diff options
Diffstat (limited to 'drivers/staging/irda/drivers/sir-dev.h')
| -rw-r--r-- | drivers/staging/irda/drivers/sir-dev.h | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/drivers/staging/irda/drivers/sir-dev.h b/drivers/staging/irda/drivers/sir-dev.h new file mode 100644 index 000000000000..f50b9c1c0639 --- /dev/null +++ b/drivers/staging/irda/drivers/sir-dev.h @@ -0,0 +1,191 @@ +/********************************************************************* + * + * 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 */ + +int irda_register_dongle(struct dongle_driver *new); +int irda_unregister_dongle(struct dongle_driver *drv); + +struct sir_dev *sirdev_get_instance(const struct sir_driver *drv, + const char *name); +int sirdev_put_instance(struct sir_dev *self); + +int sirdev_set_dongle(struct sir_dev *dev, IRDA_DONGLE type); +void sirdev_write_complete(struct sir_dev *dev); +int sirdev_receive(struct sir_dev *dev, const unsigned char *cp, size_t count); + +/* low level helpers for SIR device/dongle setup */ +int sirdev_raw_write(struct sir_dev *dev, const char *buf, int len); +int sirdev_raw_read(struct sir_dev *dev, char *buf, int len); +int sirdev_set_dtr_rts(struct sir_dev *dev, int dtr, int rts); + +/* not exported */ + +int sirdev_get_dongle(struct sir_dev *self, IRDA_DONGLE type); +int sirdev_put_dongle(struct sir_dev *self); + +void sirdev_enable_rx(struct sir_dev *dev); +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 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 */ |