/*
Copyright 2011 Jun Wako <wakojun@gmail.com>

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, see <http://www.gnu.org/licenses/>.
*/

#ifndef PS2_MOUSE_H
#define  PS2_MOUSE_H

#include <stdbool.h>
#include "debug.h"

#define PS2_MOUSE_SEND(command, message) \
do { \
   __attribute__ ((unused)) uint8_t rcv = ps2_host_send(command); \
   if (debug_mouse) { \
        print((message)); \
        xprintf(" command: %X, result: %X, error: %X \n", command, rcv, ps2_error); \
    } \
} while(0)

#define PS2_MOUSE_SEND_SAFE(command, message) \
do { \
    if (PS2_MOUSE_STREAM_MODE == ps2_mouse_mode) { \
        ps2_mouse_disable_data_reporting(); \
    } \
    PS2_MOUSE_SEND(command, message); \
    if (PS2_MOUSE_STREAM_MODE == ps2_mouse_mode) { \
        ps2_mouse_enable_data_reporting(); \
    } \
} while(0)

#define PS2_MOUSE_SET_SAFE(command, value, message) \
do { \
    if (PS2_MOUSE_STREAM_MODE == ps2_mouse_mode) { \
        ps2_mouse_disable_data_reporting(); \
    } \
    PS2_MOUSE_SEND(command, message); \
    PS2_MOUSE_SEND(value, "Sending value"); \
    if (PS2_MOUSE_STREAM_MODE == ps2_mouse_mode) { \
        ps2_mouse_enable_data_reporting(); \
    } \
} while(0)

#define PS2_MOUSE_RECEIVE(message) \
do { \
   __attribute__ ((unused)) uint8_t rcv = ps2_host_recv_response(); \
   if (debug_mouse) { \
        print((message)); \
        xprintf(" result: %X, error: %X \n", rcv, ps2_error); \
    } \
} while(0)

__attribute__ ((unused))
static enum ps2_mouse_mode_e {
    PS2_MOUSE_STREAM_MODE,
    PS2_MOUSE_REMOTE_MODE,
} ps2_mouse_mode = PS2_MOUSE_STREAM_MODE;

/*
 * Data format:
 * byte|7       6       5       4       3       2       1       0
 * ----+----------------------------------------------------------------
 *    0|[Yovflw][Xovflw][Ysign ][Xsign ][ 1    ][Middle][Right ][Left  ]
 *    1|[                    X movement(0-255)                         ]
 *    2|[                    Y movement(0-255)                         ]
 */
#define PS2_MOUSE_BTN_MASK      0x07
#define PS2_MOUSE_BTN_LEFT      0
#define PS2_MOUSE_BTN_RIGHT     1
#define PS2_MOUSE_BTN_MIDDLE    2
#define PS2_MOUSE_X_SIGN        4
#define PS2_MOUSE_Y_SIGN        5
#define PS2_MOUSE_X_OVFLW       6
#define PS2_MOUSE_Y_OVFLW       7

/* mouse button to start scrolling; set 0 to disable scroll */
#ifndef PS2_MOUSE_SCROLL_BTN_MASK
#define PS2_MOUSE_SCROLL_BTN_MASK       (1<<PS2_MOUSE_BTN_MIDDLE)
#endif
/* send button event when button is released within this value(ms); set 0 to disable  */
#ifndef PS2_MOUSE_SCROLL_BTN_SEND
#define PS2_MOUSE_SCROLL_BTN_SEND       300
#endif
/* divide virtical and horizontal mouse move by this to convert to scroll move */
#ifndef PS2_MOUSE_SCROLL_DIVISOR_V
#define PS2_MOUSE_SCROLL_DIVISOR_V      2
#endif
#ifndef PS2_MOUSE_SCROLL_DIVISOR_H
#define PS2_MOUSE_SCROLL_DIVISOR_H      2
#endif
/* multiply reported mouse values by these */
#ifndef PS2_MOUSE_X_MULTIPLIER
#define PS2_MOUSE_X_MULTIPLIER          1
#endif
#ifndef PS2_MOUSE_Y_MULTIPLIER
#define PS2_MOUSE_Y_MULTIPLIER          1
#endif
#ifndef PS2_MOUSE_V_MULTIPLIER
#define PS2_MOUSE_V_MULTIPLIER          1
#endif
/* For some mice this will need to be 0x0F */
#ifndef PS2_MOUSE_SCROLL_MASK       
#define PS2_MOUSE_SCROLL_MASK           0xFF 
#endif
#ifndef PS2_MOUSE_INIT_DELAY
#define PS2_MOUSE_INIT_DELAY            1000
#endif

enum ps2_mouse_command_e {
    PS2_MOUSE_RESET = 0xFF,
    PS2_MOUSE_RESEND = 0xFE,
    PS2_MOSUE_SET_DEFAULTS = 0xF6,
    PS2_MOUSE_DISABLE_DATA_REPORTING = 0xF5,
    PS2_MOUSE_ENABLE_DATA_REPORTING = 0xF4,
    PS2_MOUSE_SET_SAMPLE_RATE = 0xF3,
    PS2_MOUSE_GET_DEVICE_ID = 0xF2,
    PS2_MOUSE_SET_REMOTE_MODE = 0xF0,
    PS2_MOUSE_SET_WRAP_MODE = 0xEC,
    PS2_MOUSE_READ_DATA = 0xEB,
    PS2_MOUSE_SET_STREAM_MODE = 0xEA,
    PS2_MOUSE_STATUS_REQUEST = 0xE9,
    PS2_MOUSE_SET_RESOLUTION = 0xE8,
    PS2_MOUSE_SET_SCALING_2_1 = 0xE7,
    PS2_MOUSE_SET_SCALING_1_1 = 0xE6,
};

typedef enum ps2_mouse_resolution_e {
    PS2_MOUSE_1_COUNT_MM,
    PS2_MOUSE_2_COUNT_MM,
    PS2_MOUSE_4_COUNT_MM,
    PS2_MOUSE_8_COUNT_MM,   
} ps2_mouse_resolution_t;

typedef enum ps2_mouse_sample_rate_e {
    PS2_MOUSE_10_SAMPLES_SEC = 10,
    PS2_MOUSE_20_SAMPLES_SEC = 20,
    PS2_MOUSE_40_SAMPLES_SEC = 40,
    PS2_MOUSE_60_SAMPLES_SEC = 60,
    PS2_MOUSE_80_SAMPLES_SEC = 80,
    PS2_MOUSE_100_SAMPLES_SEC = 100,
    PS2_MOUSE_200_SAMPLES_SEC = 200,
} ps2_mouse_sample_rate_t;

void ps2_mouse_init(void);

void ps2_mouse_init_user(void);

void ps2_mouse_task(void);

void ps2_mouse_disable_data_reporting(void);

void ps2_mouse_enable_data_reporting(void);

void ps2_mouse_set_remote_mode(void);

void ps2_mouse_set_stream_mode(void);

void ps2_mouse_set_scaling_2_1(void);

void ps2_mouse_set_scaling_1_1(void);

void ps2_mouse_set_resolution(ps2_mouse_resolution_t resolution);

void ps2_mouse_set_sample_rate(ps2_mouse_sample_rate_t sample_rate);

#endif