platform_linux.c File Reference

linux-evdev implementation for the omniglass touchpad platform More...

#include <asm-generic/errno-base.h>
#include <linux/input-event-codes.h>
#include <omniGlass/constants.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <lua.h>
#include <lauxlib.h>
#include <lualib.h>
#include "platform.h"
#include <linux/input.h>
#include "libevdev/libevdev.h"
#include <dirent.h>

Classes
struct	platform

Macros
#define	PLATFORM_CLASS_NAME_META   "platform_meta"
#define	PLATFORM_CLASS_NAME_GLOBAL   "platform"
#define	PLATFORM_DEFAULT_DEVICE_DIRECTORY   "/dev/input"

Enumerations
enum	omniglass_platform_status { OMNIGLASS_PLATFORM_NO_CONFIG = -2 , OMNIGLASS_PLATFORM_EVDEV_INIT_FAILED = -1 , OMNIGLASS_PLATFORM_EVDEV_INIT_SUCCESS = 0 }

Functions
void	_push_new_touch_point (lua_State *vm, touch_point *point)
int	platform_evdev_init (lua_State *vm)
int	platform_parse_events (lua_State *vm)
int	platform_get_last_report (lua_State *vm)
int	platform_get_touchpad_boundaries (lua_State *vm)
omniglass_init_result	platform_init (struct platform **handle, lua_State *vm)

Detailed Description

linux-evdev implementation for the omniglass touchpad platform

Function Documentation

platform_evdev_init()

int platform_evdev_init

(

lua_State *

vm

)

(LUA-FACING) initialization function that detects a touchpad and sets up datastructures and functions needed by the lua VM.

start evdev

diagnostics: check if selected device does have touchpad-like event reporting

platform_get_last_report()

int platform_get_last_report

(

lua_State *

vm

)

(LUA-FACING) push latest report from the platform into lua

platform_get_touchpad_boundaries()

int platform_get_touchpad_boundaries

(

lua_State *

vm

)

(LUA-FACING) push coordinates of top-right corner into the virtual machine as a point

platform_init()

omniglass_init_result platform_init	(	struct platform **	handle,
		lua_State *	vm
	)

this function pushes the entire platform internal API and state into a lua table

Parameters

handle	a pointer to a pointer of a handle to create.
vm	an already-initialized lua state to be injected with the internal platform API

platform_parse_events()

int platform_parse_events

(

lua_State *

vm

)

(LUA-FACING) this function is where the linux touchpad implementation gets its touch points from the evdev interface