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#include <stdio.h>
#include "interfaces/openbmc_intf.h"
#include "gpio.h"
#include "openbmc.h"
/* ------------------------------------------------------------------------- */
static const gchar* dbus_object_path = "/org/openbmc/buttons";
static const gchar* instance_name = "power0";
static const gchar* dbus_name = "org.openbmc.buttons.Power";
static const int LONG_PRESS_SECONDS = 3;
static GDBusObjectManagerServer *manager = NULL;
//This object will use these GPIOs
GPIO gpio_button = (GPIO){ "POWER_BUTTON" };
static gboolean
on_is_on(Button *btn,
GDBusMethodInvocation *invocation,
gpointer user_data)
{
gboolean btn_state=button_get_state(btn);
button_complete_is_on(btn,invocation,btn_state);
return TRUE;
}
static gboolean
on_button_press(Button *btn,
GDBusMethodInvocation *invocation,
gpointer user_data)
{
button_emit_pressed(btn);
button_complete_sim_press(btn,invocation);
return TRUE;
}
static gboolean
on_button_interrupt( GIOChannel *channel,
GIOCondition condition,
gpointer user_data )
{
GError *error = 0;
gsize bytes_read = 0;
gchar buf[2];
buf[1] = '\0';
g_io_channel_seek_position( channel, 0, G_SEEK_SET, 0 );
g_io_channel_read_chars(channel,
buf, 1,
&bytes_read,
&error );
printf("%s\n",buf);
time_t current_time = time(NULL);
if(gpio_button.irq_inited)
{
Button* button = object_get_button((Object*)user_data);
if(buf[0] == '0')
{
printf("Power Button pressed\n");
button_emit_pressed(button);
button_set_timer(button,(long)current_time);
}
else
{
long press_time = current_time-button_get_timer(button);
printf("Power Button released, held for %ld seconds\n",press_time);
if(press_time > LONG_PRESS_SECONDS)
{
button_emit_pressed_long(button);
} else {
button_emit_released(button);
}
}
}
else { gpio_button.irq_inited = true; }
return TRUE;
}
static void
on_bus_acquired(GDBusConnection *connection,
const gchar *name,
gpointer user_data)
{
ObjectSkeleton *object;
//g_print ("Acquired a message bus connection: %s\n",name);
manager = g_dbus_object_manager_server_new(dbus_object_path);
gchar *s;
s = g_strdup_printf("%s/%s",dbus_object_path,instance_name);
object = object_skeleton_new(s);
g_free(s);
Button* button = button_skeleton_new();
object_skeleton_set_button(object, button);
g_object_unref(button);
//define method callbacks
g_signal_connect(button,
"handle-is-on",
G_CALLBACK(on_is_on),
NULL); /* user_data */
g_signal_connect(button,
"handle-sim-press",
G_CALLBACK(on_button_press),
NULL); /* user_data */
/* Export the object (@manager takes its own reference to @object) */
g_dbus_object_manager_server_set_connection(manager, connection);
g_dbus_object_manager_server_export(manager, G_DBUS_OBJECT_SKELETON(object));
g_object_unref(object);
// get gpio device paths
int rc = GPIO_OK;
do {
rc = gpio_init(connection,&gpio_button);
if(rc != GPIO_OK) { break; }
rc = gpio_open_interrupt(&gpio_button,on_button_interrupt,object);
if(rc != GPIO_OK) { break; }
} while(0);
if(rc != GPIO_OK)
{
printf("ERROR PowerButton: GPIO setup (rc=%d)\n",rc);
}
}
static void
on_name_acquired(GDBusConnection *connection,
const gchar *name,
gpointer user_data)
{
}
static void
on_name_lost(GDBusConnection *connection,
const gchar *name,
gpointer user_data)
{
}
gint
main(gint argc, gchar *argv[])
{
GMainLoop *loop;
cmdline cmd;
cmd.argc = argc;
cmd.argv = argv;
guint id;
loop = g_main_loop_new(NULL, FALSE);
id = g_bus_own_name(DBUS_TYPE,
dbus_name,
G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT |
G_BUS_NAME_OWNER_FLAGS_REPLACE,
on_bus_acquired,
on_name_acquired,
on_name_lost,
&cmd,
NULL);
g_main_loop_run(loop);
g_bus_unown_name(id);
g_main_loop_unref(loop);
return 0;
}
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