/*
 * Copyright 2005-2014 Haiku, Inc. All rights reserved.
 * Distributed under the terms of the MIT License.
 *
 * Authors (in chronological order):
 *              Marcus Overhagen (marcus@overhagen.de)
 *              Clemens Zeidler (haiku@clemens-zeidler.de)
 */
#ifndef __PS2_DEV_H
#define __PS2_DEV_H


struct ps2_dev;
typedef struct ps2_dev ps2_dev;

#include "ps2_common.h"


typedef struct {
        bigtime_t               time;
        uint8                   data;
        bool                    error;
} data_history;

struct ps2_dev {
        const char*             name;
        bool                    active;
        uint8           idx;
        sem_id                  result_sem;
        int32                   flags;
        uint8*                  result_buf;
        int                             result_buf_idx;
        int                             result_buf_cnt;
        void*                   cookie;
        data_history    history[2];
        ps2_dev*                parent_dev;
        size_t                  packet_size;

// functions
        void                    (*disconnect)(ps2_dev *);
        int32                   (*handle_int)(ps2_dev *);
        status_t                (*command)(ps2_dev *dev, uint8 cmd, const uint8 *out,
                                                int out_count, uint8 *in, int in_count, bigtime_t timeout);
};

#define PS2_DEVICE_COUNT 6

extern ps2_dev ps2_device[PS2_DEVICE_COUNT];

#define PS2_DEVICE_MOUSE 0
#define PS2_DEVICE_SYN_PASSTHROUGH 4
#define PS2_DEVICE_KEYB  5

#define PS2_FLAG_KEYB           (1 << 0)
#define PS2_FLAG_OPEN           (1 << 1)
#define PS2_FLAG_ENABLED        (1 << 2)
#define PS2_FLAG_CMD            (1 << 3)
#define PS2_FLAG_ACK            (1 << 4)
#define PS2_FLAG_NACK           (1 << 5)
#define PS2_FLAG_GETID          (1 << 6)
#define PS2_FLAG_RESEND         (1 << 7)


#ifdef __cplusplus
extern "C" {
#endif

void            ps2_dev_send(ps2_dev *dev, uint8 data);

status_t        ps2_dev_detect_pointing(ps2_dev *dev, device_hooks **hooks);

status_t        ps2_dev_init(void);
void            ps2_dev_exit(void);

status_t        standard_command_timeout(ps2_dev *dev, uint8 cmd, const uint8 *out,
                                int out_count, uint8 *in, int in_count, bigtime_t timeout);

status_t        ps2_dev_command(ps2_dev *dev, uint8 cmd, const uint8 *out = NULL,
                                int out_count = 0, uint8 *in = NULL, int in_count = 0);
status_t        ps2_dev_command_timeout(ps2_dev *dev, uint8 cmd, const uint8 *out,
                                int out_count, uint8 *in, int in_count, bigtime_t timeout);
status_t        ps2_dev_sliced_command(ps2_dev *dev, uint8 cmd);

status_t        ps2_reset_mouse(ps2_dev *dev);

void            ps2_dev_publish(ps2_dev *dev);
void            ps2_dev_unpublish(ps2_dev *dev);

int32           ps2_dev_handle_int(ps2_dev *dev);

#ifdef __cplusplus
}
#endif


#endif  /* __PS2_DEV_H */