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/*********************************************************************
*
* Filename: irda_device.h
* Version: 0.9
* Description: Contains various declarations used by the drivers
* Status: Experimental.
* Author: Dag Brattli <dagb@cs.uit.no>
* Created at: Tue Apr 14 12:41:42 1998
* Modified at: Mon Mar 20 09:08:57 2000
* Modified by: Dag Brattli <dagb@cs.uit.no>
*
* Copyright (c) 1999-2000 Dag Brattli, All Rights Reserved.
* Copyright (c) 1998 Thomas Davis, <ratbert@radiks.net>,
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
********************************************************************/
#ifndef IRDA_DEVICE_H
#define IRDA_DEVICE_H
#include <linux/tty.h>
#include <linux/netdevice.h>
#include <linux/spinlock.h>
#include <linux/irda.h>
#include <net/irda/irda.h>
#include <net/irda/qos.h>
#include <net/irda/irqueue.h>
#include <net/irda/irlap_frame.h>
/* Some non-standard interface flags (should not conflict with any in if.h) */
#define IFF_SIR 0x0001 /* Supports SIR speeds */
#define IFF_MIR 0x0002 /* Supports MIR speeds */
#define IFF_FIR 0x0004 /* Supports FIR speeds */
#define IFF_VFIR 0x0008 /* Supports VFIR speeds */
#define IFF_PIO 0x0010 /* Supports PIO transfer of data */
#define IFF_DMA 0x0020 /* Supports DMA transfer of data */
#define IFF_SHM 0x0040 /* Supports shared memory data transfers */
#define IFF_DONGLE 0x0080 /* Interface has a dongle attached */
#define IFF_AIR 0x0100 /* Supports Advanced IR (AIR) standards */
#define IO_XMIT 0x01
#define IO_RECV 0x02
typedef enum {
IRDA_IRLAP, /* IrDA mode, and deliver to IrLAP */
IRDA_RAW, /* IrDA mode */
SHARP_ASK,
TV_REMOTE, /* Also known as Consumer Electronics IR */
} INFRARED_MODE;
typedef enum {
IRDA_TASK_INIT, /* All tasks are initialized with this state */
IRDA_TASK_DONE, /* Signals that the task is finished */
IRDA_TASK_WAIT,
IRDA_TASK_WAIT1,
IRDA_TASK_WAIT2,
IRDA_TASK_WAIT3,
IRDA_TASK_CHILD_INIT, /* Initializing child task */
IRDA_TASK_CHILD_WAIT, /* Waiting for child task to finish */
IRDA_TASK_CHILD_DONE /* Child task is finished */
} IRDA_TASK_STATE;
struct irda_task;
typedef int (*IRDA_TASK_CALLBACK) (struct irda_task *task);
struct irda_task {
irda_queue_t q;
magic_t magic;
IRDA_TASK_STATE state;
IRDA_TASK_CALLBACK function;
IRDA_TASK_CALLBACK finished;
struct irda_task *parent;
struct timer_list timer;
void *instance; /* Instance being called */
void *param; /* Parameter to be used by instance */
};
/* Dongle info */
struct dongle_reg;
typedef struct {
struct dongle_reg *issue; /* Registration info */
struct net_device *dev; /* Device we are attached to */
struct irda_task *speed_task; /* Task handling speed change */
struct irda_task *reset_task; /* Task handling reset */
__u32 speed; /* Current speed */
/* Callbacks to the IrDA device driver */
int (*set_mode)(struct net_device *, int mode);
int (*read)(struct net_device *dev, __u8 *buf, int len);
int (*write)(struct net_device *dev, __u8 *buf, int len);
int (*set_dtr_rts)(struct net_device *dev, int dtr, int rts);
} dongle_t;
/* Dongle registration info */
struct dongle_reg {
irda_queue_t q; /* Must be first */
IRDA_DONGLE type;
void (*open)(dongle_t *dongle, struct qos_info *qos);
void (*close)(dongle_t *dongle);
int (*reset)(struct irda_task *task);
int (*change_speed)(struct irda_task *task);
};
/* Chip specific info */
typedef struct {
int cfg_base; /* Config register IO base */
int sir_base; /* SIR IO base */
int fir_base; /* FIR IO base */
int mem_base; /* Shared memory base */
int sir_ext; /* Length of SIR iobase */
int fir_ext; /* Length of FIR iobase */
int irq, irq2; /* Interrupts used */
int dma, dma2; /* DMA channel(s) used */
int fifo_size; /* FIFO size */
int irqflags; /* interrupt flags (ie, SA_SHIRQ|SA_INTERRUPT) */
int direction; /* Link direction, used by some FIR drivers */
int enabled; /* Powered on? */
int suspended; /* Suspended by APM */
__u32 speed; /* Currently used speed */
__u32 new_speed; /* Speed we must change to when Tx is finished */
int dongle_id; /* Dongle or transceiver currently used */
} chipio_t;
/* IO buffer specific info (inspired by struct sk_buff) */
typedef struct {
int state; /* Receiving state (transmit state not used) */
int in_frame; /* True if receiving frame */
__u8 *head; /* start of buffer */
__u8 *data; /* start of data in buffer */
__u8 *tail; /* end of data in buffer */
int len; /* length of data */
int truesize; /* total size of buffer */
__u16 fcs;
} iobuff_t;
/* Function prototypes */
int irda_device_init(void);
void irda_device_cleanup(void);
/* Interface to be uses by IrLAP */
void irda_device_set_media_busy(struct net_device *dev, int status);
int irda_device_is_media_busy(struct net_device *dev);
int irda_device_is_receiving(struct net_device *dev);
/* Interface for internal use */
int irda_device_txqueue_empty(struct net_device *dev);
int irda_device_set_raw_mode(struct net_device* self, int status);
int irda_device_set_dtr_rts(struct net_device *dev, int dtr, int rts);
int irda_device_change_speed(struct net_device *dev, __u32 speed);
int irda_device_setup(struct net_device *dev);
/* Dongle interface */
void irda_device_unregister_dongle(struct dongle_reg *dongle);
int irda_device_register_dongle(struct dongle_reg *dongle);
dongle_t *irda_device_dongle_init(struct net_device *dev, int type);
int irda_device_dongle_cleanup(dongle_t *dongle);
void setup_dma(int channel, char *buffer, int count, int mode);
void irda_task_delete(struct irda_task *task);
int irda_task_kick(struct irda_task *task);
struct irda_task *irda_task_execute(void *instance,
IRDA_TASK_CALLBACK function,
IRDA_TASK_CALLBACK finished,
struct irda_task *parent, void *param);
void irda_task_next_state(struct irda_task *task, IRDA_TASK_STATE state);
extern const char *infrared_mode[];
/*
* Function irda_get_mtt (skb)
*
* Utility function for getting the minimum turnaround time out of
* the skb, where it has been hidden in the cb field.
*/
#define irda_get_mtt(skb) ( \
IRDA_MIN(10000, \
(((struct irda_skb_cb *) skb->cb)->magic == LAP_MAGIC) ? \
((struct irda_skb_cb *)(skb->cb))->mtt : 10000 \
) \
)
#if 0
extern inline __u16 irda_get_mtt(struct sk_buff *skb)
{
__u16 mtt;
if (((struct irda_skb_cb *)(skb->cb))->magic != LAP_MAGIC)
mtt = 10000;
else
mtt = ((struct irda_skb_cb *)(skb->cb))->mtt;
ASSERT(mtt <= 10000, return 10000;);
return mtt;
}
#endif
/*
* Function irda_get_speed (skb)
*
* Extact the speed this frame should be sent out with from the skb
*
*/
#define irda_get_speed(skb) ( \
(((struct irda_skb_cb*) skb->cb)->magic == LAP_MAGIC) ? \
((struct irda_skb_cb *)(skb->cb))->speed : 9600 \
)
#if 0
extern inline __u32 irda_get_speed(struct sk_buff *skb)
{
__u32 speed;
if (((struct irda_skb_cb *)(skb->cb))->magic != LAP_MAGIC)
speed = 9600;
else
speed = ((struct irda_skb_cb *)(skb->cb))->speed;
return speed;
}
#endif
#endif /* IRDA_DEVICE_H */
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