diff options
Diffstat (limited to 'pwrbutton')
| -rw-r--r-- | pwrbutton/Makefile | 3 | ||||
| -rw-r--r-- | pwrbutton/button_power_obj.c | 167 |
2 files changed, 170 insertions, 0 deletions
diff --git a/pwrbutton/Makefile b/pwrbutton/Makefile new file mode 100644 index 0000000..a92236f --- /dev/null +++ b/pwrbutton/Makefile @@ -0,0 +1,3 @@ +BINS=button_power +include ../gdbus.mk +include ../rules.mk diff --git a/pwrbutton/button_power_obj.c b/pwrbutton/button_power_obj.c new file mode 100644 index 0000000..e093a00 --- /dev/null +++ b/pwrbutton/button_power_obj.c @@ -0,0 +1,167 @@ +#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; +} |
