#include <linux/parport.h>
#include <linux/ioctl.h>

#ifndef NOTE1_H
#define NOTE1_H

/* Uncomment this for debug */
#define NOTE1_DEBUG

/* Note/1 status bits 
 * DO NOT MODIFY!
 */
#define NOTE1_DATA0	0x20 /* Data bit 0 */
#define NOTE1_DATA1	0x08 /* Data bit 1 */
#define NOTE1_RX	0x40 /* Data can be recieved */
#define NOTE1_TX	0x80 /* Data can be sent */

/* Macro definitions */
#define NOTE1_DEVNAME	"snd_noteone"
#define NOTE1_DESC	"Music Quest Note/1"
#define NOTE1_DEVS	PARPORT_MAX
#define NOTE1_IOC_MAGIC	'N'
#define NOTE1_IOC_MAXNR	0

/* Note/1 parent ioctls */

#define NOTE1_IOCPROBE  _IO( NOTE1_IOC_MAGIC, 0 )

/* Kernel definitions */

#ifdef __KERNEL__
#include <linux/sem.h>
#include <sound/driver.h>
#include <sound/core.h>
#include <sound/rawmidi.h>

struct note1_device {
        struct semaphore sem; 
        struct pardevice* par;
	struct snd_rawmidi* rmidi;
	struct snd_card* card;
	int busy, claimed, opened;
};

#define NOTE1_DELAY_BETWEEN_READS  10
#define NOTE1_DELAY_BETWEEN_WRITES  10

/* macro to compact the 2 bits we
 *    are reading for the get() function */
#define note1_get_stat_data(stat) ( ((stat & 0x20) >> 4) | (( stat & 0x08) >>3) )

/* Checks if mode is set to busy */
#define note1_isbusy( dev )			( (dev)->busy )
/* Checks if the port is claimed */
#define note1_isclaimed( dev )			( (dev)->claimed )
/* Checks if the device is already oepned */
#define note1_isopened( dev )			( (dev)->opened )
/* Checks if there is a port associated with this structure */
#define note1_isused( dev )			( (dev)->par != NULL )

/* These increment/decrement the busy counter, this is to protect us from port
 * preemption
 */
#define note1_setbusy( dev )			( ++((dev)->busy) )
#define note1_unsetbusy( dev )			( --((dev)->busy) )

/* Sets/Unsets claim
 * One should never need to use these.
 * Use note1_claim() and note1_release() instead.
 */
#define note1_setclaim( dev )			( ++((dev)->claimed) )
#define note1_unsetclaim( dev )			( --((dev)->claimed) )
/* Sets/Unsets open
 * One should never to use these.
 */
#define note1_setopen( dev )			( ++((dev)->opened) )
#define note1_unsetopen( dev )			( --((dev)->opened) )

/* This gets the port SAFELY if any */
#define note1_getport( dev )			( note1_isused( dev ) ? (dev)->par->port : NULL )

#endif

#endif