int button_process(Button *b) {
struct input_event ev;
ssize_t l;
assert(b);
l = read(b->fd, &ev, sizeof(ev));
if (l < 0)
return errno != EAGAIN ? -errno : 0;
if ((size_t) l < sizeof(ev))
return -EIO;
if (ev.type == EV_KEY && ev.value > 0) {
switch (ev.code) {
case KEY_POWER:
case KEY_POWER2:
log_info("Power key pressed.");
return button_handle(b, INHIBIT_HANDLE_POWER_KEY, b->manager->handle_power_key, b->manager->power_key_ignore_inhibited, true);
/* The kernel is a bit confused here:
KEY_SLEEP = suspend-to-ram, which everybody else calls "suspend"
KEY_SUSPEND = suspend-to-disk, which everybody else calls "hibernate"
*/
case KEY_SLEEP:
log_info("Suspend key pressed.");
return button_handle(b, INHIBIT_HANDLE_SUSPEND_KEY, b->manager->handle_suspend_key, b->manager->suspend_key_ignore_inhibited, true);
case KEY_SUSPEND:
log_info("Hibernate key pressed.");
return button_handle(b, INHIBIT_HANDLE_HIBERNATE_KEY, b->manager->handle_hibernate_key, b->manager->hibernate_key_ignore_inhibited, true);
}
} else if (ev.type == EV_SW && ev.value > 0) {
switch (ev.code) {
case SW_LID:
log_info("Lid closed.");
b->lid_close_queued = true;
return button_handle(b, INHIBIT_HANDLE_LID_SWITCH, b->manager->handle_lid_switch, b->manager->lid_switch_ignore_inhibited, true);
}
} else if (ev.type == EV_SW && ev.value == 0) {
switch (ev.code) {
case SW_LID:
log_info("Lid opened.");
b->lid_close_queued = false;
break;
}
}
return 0;
}
int button_recheck(Button *b) {
assert(b);
if (!b->lid_close_queued)
return 0;
return button_handle(b, INHIBIT_HANDLE_LID_SWITCH, b->manager->handle_lid_switch, b->manager->lid_switch_ignore_inhibited, false);
}
void buttons_step()
{
if (config.gui.disp_flags & CFG_DISP_FLIP)
{
button_handle(2, GpioRead(SWITCH1));
button_handle(0, GpioRead(SWITCH3));
}
else
{
button_handle(0, GpioRead(SWITCH1));
button_handle(2, GpioRead(SWITCH3));
}
button_handle(1, GpioRead(SWITCH2));
if (buttons_state[0] > BS_IDLE || buttons_state[1] > BS_IDLE || buttons_state[2] > BS_IDLE)
button_lock.Lock();
else
button_lock.Unlock();
}
void *read_ts(void *data)
{
int x,y;
unsigned int i;
unsigned int mode =0;
while(1)
{
struct ts_sample samp;
int ret;
ret = ts_read(data, &samp,1);
if(ret<0)
{
perror("ts_read");
close_framebuffer();
exit(1);
}
if(ret!=1)
continue;
for(i=0;i<NR_BUTTONS;i++)
if(button_handle(&buttons[i],&samp))
switch(i)
{
case 0://clear button clicked
mode = 0;
refresh_screen();
break;
case 1://exit button clicked
mode = 1;
put_string_center(xres/2,yres/2, "Bye~!!",1);
sleep(2);
fillrect(0,0,xres-1,yres-1,0);
exit(1);
break;
}
if(samp.pressure>0)
{
if(mode == 0x80000000)
line(x,y,samp.x,samp.y,2);
x = samp.x;
y = samp.y;
mode|=0x80000000;
}
else
{
mode&=~0x80000000;
}
}
}
int main()
{
struct tsdev *ts;
int x, y;
unsigned int i;
unsigned int mode = 0;
char *tsdevice=NULL;
signal(SIGSEGV, sig);
signal(SIGINT, sig);
signal(SIGTERM, sig);
if ((tsdevice = getenv("TSLIB_TSDEVICE")) == NULL) {
#ifdef USE_INPUT_API
tsdevice = strdup ("/dev/input/event0");
#else
tsdevice = strdup ("/dev/touchscreen/ucb1x00");
#endif /* USE_INPUT_API */
}
ts = ts_open (tsdevice, 0);
if (!ts) {
perror (tsdevice);
exit(1);
}
if (ts_config(ts)) {
perror("ts_config");
exit(1);
}
if (open_framebuffer()) {
close_framebuffer();
exit(1);
}
x = xres/2;
y = yres/2;
for (i = 0; i < NR_COLORS; i++)
setcolor (i, palette [i]);
/* Initialize buttons */
memset (&buttons, 0, sizeof (buttons));
/*buttons [0].w = buttons [1].w = xres / 4;
buttons [0].h = buttons [1].h = 20;
buttons [0].x = xres / 4 - buttons [0].w / 2;
buttons [1].x = (3 * xres) / 4 - buttons [0].w / 2;
buttons [0].y = buttons [1].y = 10;
buttons [0].text = "Drag";
buttons [1].text = "Draw";
buttons [0].*/
/*weight height*/
for(i=1; i<17; i++){
buttons [i].w = xres / 7;
buttons [i].h = yres / 5;
}
buttons [0].w = (2*xres/7) + (xres/49);
buttons [0].h = yres / 5;
/*result a half of xres and position is center*/
buttons [17].w = xres / 2;
buttons [17].h = yres / 5;
buttons [17].text = "";
/*value*/
buttons [0].text = "0";
buttons [1].text = "1";
buttons [2].text = "2";
buttons [3].text = "3";
buttons [4].text = "4";
buttons [5].text = "5";
buttons [6].text = "6";
buttons [7].text = "7";
buttons [8].text = "8";
buttons [9].text = "9";
buttons [10].text = "+";
buttons [11].text = "-";
buttons [12].text = "*";
buttons [13].text = "/";
buttons [14].text = "=";
buttons [15].text = "C";
buttons [16].text = "D";
/*
*800 * 480
*
*such design: the y-blank is yres/25 = 96px, x-blank is xres/49 = 114px;
* */
/*
*
* 17
*15 16 10 11 12 13
*1 2 3 4 5 14
*6 7 8 9 0
*
* */
/*the x position of buttons*/
buttons [15].x = buttons [1].x = buttons [6].x = xres / 49;
buttons [16].x = buttons [2].x = buttons [7].x = (xres/7) + (2*xres/49);
buttons [10].x = buttons [3].x = buttons [8].x = (2*xres/7) + (3*xres/49);
buttons [11].x = buttons [4].x = buttons [9].x = (3*xres/7) + (4*xres/49);
buttons [12].x = buttons [5].x = buttons [0].x = (4*xres/7) + (5*xres/49);
buttons [13].x = buttons [14].x = (5*xres/7) + (6*xres/49);
/*the y position of buttons*/
buttons [15].y =buttons [16].y =buttons [10].y =buttons [11].y =buttons [12].y = buttons [13].y = (yres/5) + (2*yres/25);
buttons [1].y =buttons [2].y =buttons [3].y =buttons [4].y =buttons [5].y = buttons [14].y = (2*yres/5) + (3*yres/25);
buttons [6].y =buttons [7].y =buttons [8].y =buttons [9].y =buttons [0].y = (3*yres/5) + (4*yres/25);
/*result center*/
buttons [17].x = xres / 4;
buttons [17].y = yres / 25;
/*refresh*/
refresh_screen ();
while (1) {
struct ts_sample samp;
int ret;
// Show the cross
if ((mode & 15) != 1)
put_cross(x, y, 2 | XORMODE);
ret = ts_read(ts, &samp, 1);
// Hide it
if ((mode & 15) != 1)
put_cross(x, y, 2 | XORMODE);
if (ret < 0) {
perror("ts_read");
close_framebuffer();
exit(1);
}
if (ret != 1)
continue;
for (i = 0; i < NR_BUTTONS; i++)
if (button_handle (&buttons [i], &samp))
switch (i) {
case 0:
mode = 0;
refresh_screen ();
break;
case 1:
mode = 1;
refresh_screen ();
break;
}
printf("%ld.%06ld: %6d %6d %6d\n", samp.tv.tv_sec, samp.tv.tv_usec,
samp.x, samp.y, samp.pressure);
if (samp.pressure > 0) {
if (mode == 0x80000001)
line (x, y, samp.x, samp.y, 2);
x = samp.x;
y = samp.y;
mode |= 0x80000000;
} else
mode &= ~0x80000000;
}
close_framebuffer();
}
int main()
{
struct tsdev *ts;
int x, y;
unsigned int i;
unsigned int mode = 0;
char *tsdevice=NULL;
signal(SIGSEGV, sig);
signal(SIGINT, sig);
signal(SIGTERM, sig);
if ((tsdevice = getenv("TSLIB_TSDEVICE")) == NULL) {
#ifdef USE_INPUT_API
tsdevice = strdup ("/dev/input/event0");
#else
tsdevice = strdup ("/dev/touchscreen/ucb1x00");
#endif /* USE_INPUT_API */
}
ts = ts_open (tsdevice, 0);
if (!ts) {
perror (tsdevice);
exit(1);
}
if (ts_config(ts)) {
perror("ts_config");
exit(1);
}
if (open_framebuffer()) {
close_framebuffer();
exit(1);
}
x = xres/2;
y = yres/2;
for (i = 0; i < NR_COLORS; i++)
setcolor (i, palette [i]);
/* Initialize buttons */
memset (&buttons, 0, sizeof (buttons));
buttons [0].w = buttons [1].w = xres / 4;
buttons [0].h = buttons [1].h = 20;
buttons [0].x = xres / 4 - buttons [0].w / 2;
buttons [1].x = (3 * xres) / 4 - buttons [0].w / 2;
buttons [0].y = buttons [1].y = 10;
buttons [0].text = "Drag";
buttons [1].text = "Draw";
refresh_screen ();
while (1) {
struct ts_sample samp;
int ret;
/* Show the cross */
if ((mode & 15) != 1)
put_cross(x, y, 2 | XORMODE);
ret = ts_read(ts, &samp, 1);
/* Hide it */
if ((mode & 15) != 1)
put_cross(x, y, 2 | XORMODE);
if (ret < 0) {
perror("ts_read");
close_framebuffer();
exit(1);
}
if (ret != 1)
continue;
for (i = 0; i < NR_BUTTONS; i++)
if (button_handle (&buttons [i], &samp))
switch (i) {
case 0:
mode = 0;
refresh_screen ();
break;
case 1:
mode = 1;
refresh_screen ();
break;
}
printf("%ld.%06ld: %6d %6d %6d\n", samp.tv.tv_sec, samp.tv.tv_usec,
samp.x, samp.y, samp.pressure);
if (samp.pressure > 0) {
if (mode == 0x80000001)
line (x, y, samp.x, samp.y, 2);
x = samp.x;
y = samp.y;
mode |= 0x80000000;
} else
mode &= ~0x80000000;
}
close_framebuffer();
}