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added some code stolen from DirectFB and forgotten on my disk a long time 

2007-02-10  Michael Natterer  <mitch@gimp.org>

	* modules/controller_linux_input.c: added some code stolen from
	DirectFB and forgotten on my disk a long time ago which queries
	the input device for available keys and axes (just for debugging
	purposes for now). Also add one more button event and some
	debugging output for incoming events.


svn path=/trunk/; revision=21887
This commit is contained in:
Michael Natterer 2007-02-09 23:38:39 +00:00 committed by Michael Natterer
parent f27cf7ec8e
commit 4f871da32b
2 changed files with 128 additions and 0 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2007-02-10 Michael Natterer <mitch@gimp.org>
* modules/controller_linux_input.c: added some code stolen from
DirectFB and forgotten on my disk a long time ago which queries
the input device for available keys and axes (just for debugging
purposes for now). Also add one more button event and some
debugging output for incoming events.
2007-02-09 Michael Natterer <mitch@gimp.org>
* modules/controller_linux_input.c (linux_input_read_event): fix

120
modules/controller_linux_input.c
View File

@ -71,6 +71,7 @@ static const LinuxInputEvent key_events[] =
{ BTN_EXTRA, "button-extra", N_("Button Extra") },
{ BTN_FORWARD, "button-forward", N_("Button Forward") },
{ BTN_BACK, "button-back", N_("Button Forward") },
{ BTN_TASK, "button-task", N_("Button Task") },
#ifdef BTN_WHEEL
{ BTN_WHEEL, "button-wheel", N_("Button Wheel") },
#endif
@ -347,6 +348,113 @@ linux_input_get_event_blurb (GimpController *controller,
}
}
#define BITS_PER_LONG (sizeof(long) * 8)
#define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
#define OFF(x) ((x)%BITS_PER_LONG)
#define BIT(x) (1UL<<OFF(x))
#define LONG(x) ((x)/BITS_PER_LONG)
#define test_bit(bit, array) ((array[LONG(bit)] >> OFF(bit)) & 1)
static void
linux_input_get_device_info (ControllerLinuxInput *controller,
int fd)
{
unsigned long evbit[NBITS (EV_MAX)];
unsigned long keybit[NBITS (KEY_MAX)];
unsigned long relbit[NBITS (REL_MAX)];
unsigned long absbit[NBITS (ABS_MAX)];
gint num_keys = 0;
gint num_ext_keys = 0;
gint num_buttons = 0;
gint num_rels = 0;
gint num_abs = 0;
/* get event type bits */
ioctl (fd, EVIOCGBIT (0, EV_MAX), evbit);
if (test_bit (EV_KEY, evbit))
{
gint i;
/* get keyboard bits */
ioctl (fd, EVIOCGBIT (EV_KEY, KEY_MAX), keybit);
/** count typical keyboard keys only */
for (i = KEY_Q; i < KEY_M; i++)
if (test_bit (i, keybit))
{
num_keys++;
g_print ("%s: key 0x%02x present\n", G_STRFUNC, i);
}
g_print ("%s: #keys = %d\n", G_STRFUNC, num_keys);
for (i = KEY_OK; i < KEY_MAX; i++)
if (test_bit (i, keybit))
{
num_ext_keys++;
g_print ("%s: ext key 0x%02x present\n", G_STRFUNC, i);
}
g_print ("%s: #ext_keys = %d\n", G_STRFUNC, num_ext_keys);
for (i = BTN_MISC; i < KEY_OK; i++)
if (test_bit (i, keybit))
{
num_buttons++;
g_print ("%s: button 0x%02x present\n", G_STRFUNC, i);
}
g_print ("%s: #buttons = %d\n", G_STRFUNC, num_buttons);
}
if (test_bit (EV_REL, evbit))
{
gint i;
/* get bits for relative axes */
ioctl (fd, EVIOCGBIT (EV_REL, REL_MAX), relbit);
for (i = 0; i < REL_MAX; i++)
if (test_bit (i, relbit))
{
num_rels++;
g_print ("%s: rel 0x%02x present\n", G_STRFUNC, i);
}
g_print ("%s: #rels = %d\n", G_STRFUNC, num_rels);
}
if (test_bit (EV_ABS, evbit))
{
gint i;
/* get bits for absolute axes */
ioctl (fd, EVIOCGBIT (EV_ABS, ABS_MAX), absbit);
for (i = 0; i < ABS_MAX; i++)
if (test_bit (i, absbit))
{
struct input_absinfo absinfo;
num_abs++;
/* get info for the absolute axis */
ioctl (fd, EVIOCGABS (i), &absinfo);
g_print ("%s: abs 0x%02x present [%d..%d]\n", G_STRFUNC, i,
absinfo.minimum, absinfo.maximum);
}
g_print ("%s: #abs = %d\n", G_STRFUNC, num_abs);
}
}
static gboolean
linux_input_set_device (ControllerLinuxInput *controller,
const gchar *device)
@ -386,6 +494,8 @@ linux_input_set_device (ControllerLinuxInput *controller,
g_object_set (controller, "name", name, NULL);
}
linux_input_get_device_info (controller, fd);
state = g_strdup_printf (_("Reading from %s"), controller->device);
g_object_set (controller, "state", state, NULL);
g_free (state);
@ -474,6 +584,8 @@ linux_input_read_event (GIOChannel *io,
switch (ev.type)
{
case EV_KEY:
g_print ("%s: EV_KEY code = 0x%02x\n", G_STRFUNC, ev.code);
for (i = 0; i < G_N_ELEMENTS (key_events); i++)
if (ev.code == key_events[i].code)
{
@ -488,6 +600,9 @@ linux_input_read_event (GIOChannel *io,
break;
case EV_REL:
g_print ("%s: EV_REL code = 0x%02x (value = %d)\n", G_STRFUNC,
ev.code, ev.value);
for (i = 0; i < G_N_ELEMENTS (rel_events); i++)
if (ev.code == rel_events[i].code)
{
@ -516,6 +631,11 @@ linux_input_read_event (GIOChannel *io,
}
break;
case EV_ABS:
g_print ("%s: EV_ABS code = 0x%02x (value = %d)\n", G_STRFUNC,
ev.code, ev.value);
break;
default:
break;
}