Subversion Repositories shark

/*

 * Project: S.Ha.R.K.

 *

 * Coordinators:

 *   Giorgio Buttazzo    <giorgio@sssup.it>

 *   Paolo Gai           <pj@gandalf.sssup.it>

 *

 * Authors     :

 *   Mauro Marinoni      <mauro.marinoni@unipv.it>

 *   (see the web pages for full authors list)

 *

 * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy)

 *

 * http://www.sssup.it

 * http://retis.sssup.it

 * http://shark.sssup.it

 */

//#define __MOUSE_DEBUG__

//#define MOUSE_TASK

#include <kernel/kern.h>

#include "../include/drivers/shark_input26.h"

#include "../include/drivers/shark_mouse26.h"

/* Devices */

extern int psmouse_init(void);

extern int psmouse_exit(void);

/* Handlers */

extern int  mouse_init(void);

extern void mouse_exit(void);

/* Functions */

extern int mouse_get(int *dx, int *dy, int *dz, unsigned long *buttons);

extern int input_installed;

/* Mouse driver currently installed/actived */

static int mouse_installed = FALSE;

static int mouse_enabled = FALSE;

static int mouse_xmin_tick;

static int mouse_ymin_tick;

static int mouse_xmax_tick;

static int mouse_ymax_tick;

#define MOUSE_DEF_THRESHOLD 10

static int mouse_threshold;

static int           mouse_x = 0;

static int           mouse_y = 0;

static int           mouse_x_tick = 0;

static int           mouse_y_tick = 0;

static int           mouse_z =  0;

static unsigned long mouse_buttons = 0;

MOUSE_HANDLER user_mouse_handler = NULL;

MOUSE_HANDLER show_mouse_handler = NULL;

#ifdef MOUSE_TASK

/* mouse task PID */

static PID mousepid = NIL;

#else

void mouseProc(void);

#endif

/*

 * Start mouseProc Task

 */

void shark_mouse_exec(void)

{

#ifdef MOUSE_TASK

        task_activate(mousepid);

#else

        mouseProc();

#endif

}

#ifdef MOUSE_TASK

TASK mouseProc(void)

#else

void mouseProc(void)

#endif

{

        static MOUSE_EVT ev;

        unsigned long dbuttons;

        int dx, dy, dz;

        int res;

#ifdef MOUSE_TASK

        while (1) {

#endif

                if (mouse_enabled) {

                        res = mouse_get(&dx, &dy, &dz, &dbuttons);

                        if (res >= 0) {

                                mouse_x_tick += dx;

                                if (mouse_x_tick < mouse_xmin_tick)

                                        mouse_x_tick = mouse_xmin_tick;

                                if (mouse_x_tick > mouse_xmax_tick)

                                        mouse_x_tick = mouse_xmax_tick;

                                mouse_x = (mouse_x_tick + (mouse_threshold/2)) / mouse_threshold;

                                ev.x  = mouse_x;

                                ev.dx = dx;

                                mouse_y_tick -= dy;

                                if (mouse_y_tick < mouse_ymin_tick)

                                        mouse_y_tick = mouse_ymin_tick;

                                if (mouse_y_tick > mouse_ymax_tick)

                                        mouse_y_tick = mouse_ymax_tick;

                                mouse_y = (mouse_y_tick + (mouse_threshold/2)) / mouse_threshold;

                                ev.y  = mouse_y;

                                ev.dy = dy;

                                mouse_z += dz;

                                ev.z  = mouse_z;

                                ev.dz = dz;

                                mouse_buttons = dbuttons;

                                ev.buttons  = mouse_buttons;

#ifdef __MOUSE_DEBUG__

                                printk(KERN_DEBUG "shark_mouse.c: delta ( %3d %3d %3d - %6x) -> ( %3d %3d %3d - %6x)\n",

                                       dx, dy, dz, (int)dbuttons, mouse_x, mouse_y, mouse_z, (int)mouse_buttons);

#endif

                                /* mouse handler */

                                if (show_mouse_handler != NULL)

                                        show_mouse_handler(&ev);

                                else if (user_mouse_handler != NULL)

                                        user_mouse_handler(&ev);

                        }

                }

#ifdef MOUSE_TASK

                task_endcycle();

        }

#endif

}

/**** Start User Functions ****/

void mouse_enable(void)

{

        mouse_enabled = TRUE;   /* TODO */

}

void mouse_disable(void)

{

        mouse_enabled = FALSE;  /* TODO */

}

void mouse_getpos(int *x,int *y,int *z, unsigned long *buttons)

{

        if (x)

                *x = mouse_x;

        if (y)

                *y = mouse_y;

        if (z)

                *z = mouse_z;

        if (buttons)

                *buttons = mouse_buttons;

}

void mouse_setpos(int x,int y, int z)

{

        mouse_enabled = FALSE;

        mouse_x = x;

        if (x < (mouse_xmin_tick / mouse_threshold))

                mouse_x = mouse_xmin_tick / mouse_threshold;

        if (x > (mouse_xmax_tick / mouse_threshold))

                mouse_x = mouse_xmax_tick / mouse_threshold;

        mouse_y = y;

        if (y < (mouse_ymin_tick / mouse_threshold))

                mouse_y = mouse_ymin_tick / mouse_threshold;

        if (y > (mouse_ymax_tick / mouse_threshold))

                mouse_y = mouse_ymax_tick / mouse_threshold;

        mouse_z = z;

        mouse_enabled = TRUE;

}

void mouse_getlimit(int *xmin, int *ymin, int *xmax, int *ymax)

{

        if (xmin)

                *xmin = mouse_xmin_tick / mouse_threshold;

        if (ymin)

                *ymin = mouse_ymin_tick / mouse_threshold;

        if (xmax)

                *xmax = mouse_xmax_tick / mouse_threshold;

        if (ymax)

                *ymax = mouse_ymax_tick / mouse_threshold;

}

int mouse_setlimit(int xmin, int ymin, int xmax, int ymax)

{

        if ((xmin < 0) && (ymin < 0) && (xmax < xmin) && (ymax < ymin))

                return -1;

        mouse_xmin_tick = xmin * mouse_threshold;

        mouse_ymin_tick = ymin * mouse_threshold;

        mouse_xmax_tick = xmax * mouse_threshold;

        mouse_ymax_tick = ymax * mouse_threshold;

        return 0;

}

void mouse_hook(MOUSE_HANDLER h)

{

        user_mouse_handler = h;

}

int mouse_getthreshold(void)

{

        return mouse_threshold;

}

int mouse_setthreshold(int t)

{

        mouse_enabled = FALSE;

        if ((t>0) && (t<=200)) {

                mouse_xmin_tick = (mouse_xmin_tick * t) / mouse_threshold;

                mouse_ymin_tick = (mouse_ymin_tick * t) / mouse_threshold;

                mouse_xmax_tick = (mouse_xmax_tick * t) / mouse_threshold;

                mouse_ymax_tick = (mouse_ymax_tick * t) / mouse_threshold;

                mouse_threshold = t;

                return 0;

        } else {

                return -1;

        }

        mouse_enabled = TRUE;

}

/**** End User Functions ****/

/* Init the Linux Speaker Driver */

int MOUSE26_init(MOUSE_PARMS *s)

{

        MOUSE_PARMS mparms = BASE_MOUSE;

        int status = 0;

#ifdef MOUSE_TASK

        TASK_MODEL *m;

        SOFT_TASK_MODEL base_m;

#endif

        if (mouse_installed == TRUE) return 0;

        /* if a NULL is passed */

        if (s == NULL)

                s = &mparms;

        /* set mouse threshold */

        if (s->threshold == (int) MOUSE_DEFAULT)

                mouse_threshold = MOUSE_DEF_THRESHOLD;

        else

                mouse_threshold = s->threshold;

        /* set mouse limits */

        if ((s->xmin == (int) MOUSE_DEFAULT) || (s->xmin < 0))

                mouse_xmin_tick = 0;

        else

                mouse_xmin_tick = s->xmin * mouse_threshold;

        if ((s->ymin == (int) MOUSE_DEFAULT) || (s->ymin < 0))

                mouse_ymin_tick = 0;

        else

                mouse_ymin_tick = s->ymin * mouse_threshold;

        if ((s->xmax == (int) MOUSE_DEFAULT) || ((s->xmax * mouse_threshold) < mouse_xmin_tick))

                mouse_xmax_tick = 79 * mouse_threshold;

        else

                mouse_xmax_tick = s->xmax * mouse_threshold;

        if ((s->ymax == (int) MOUSE_DEFAULT) || ((s->ymax * mouse_threshold) < mouse_ymin_tick))

                mouse_ymax_tick = 24 * mouse_threshold;

        else

                mouse_ymax_tick = s->ymax * mouse_threshold;

#ifdef MOUSE_TASK

        if (s->tm == (TASK_MODEL *)MOUSE_DEFAULT) {

                soft_task_default_model(base_m);

                soft_task_def_wcet(base_m,2000);

                soft_task_def_met(base_m,500);

                soft_task_def_period(base_m,8000);

                soft_task_def_system(base_m);

                soft_task_def_nokill(base_m);

                soft_task_def_aperiodic(base_m);

                m = (TASK_MODEL *)&base_m;

        } else

                m = s->tm;

        mousepid = task_create ("MouseTask", mouseProc, m, NULL);

        if (mousepid == -1) {

                return -1;

        }

#endif

        if (input_installed == FALSE) {

                status = INPUT26_init();

                if (status) {

                        printk(KERN_ERR "shark_mouse.c: Unable to open Input SubSystem.\n");

                        return -1;

                }

        }

        status = psmouse_init();

        if (status) {

                printk(KERN_ERR "shark_mouse.c: PsMouse_Init return: %d\n", status);

                return -1;

        }

        status = mouse_init();

        if (status) {

                printk(KERN_ERR "shark_mouse.c: Mouse_Init return: %d\n", status);

                return -1;

        }

        mouse_installed = TRUE;

        mouse_enabled = TRUE;

        return status;

}

int MOUSE26_close()

{

#ifdef MOUSE_TASK

        int free;

        SYS_FLAGS f;

#endif

        if (!mouse_installed)

                return -1;

        mouse_enabled = FALSE;

        mouse_exit();

        psmouse_exit();

#ifdef MOUSE_TASK

        f = kern_fsave();

        free = (proc_table[mousepid].status == FREE);

        kern_frestore(f);

#ifdef __MOUSE_DEBUG__

        printk(KERN_DEBUG "shark_mouse.c: MouseTask is %s.\n", free ? "killed" : "alive");

#endif

        if (free)

                task_kill (mousepid);

#endif

        mouse_installed = FALSE;

        return 0;

}