blob: ce2a52d6aef52852b460fffdb24ce9e2f3b0d69c [file] [log] [blame]
/*
* Copyright (c) 2020 Jabil Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <drivers/kscan.h>
#include <logging/log.h>
#include <SDL.h>
LOG_MODULE_REGISTER(kscan, CONFIG_KSCAN_LOG_LEVEL);
struct sdl_data {
const struct device *dev;
kscan_callback_t callback;
bool enabled;
};
static int sdl_filter(void *arg, SDL_Event *event)
{
struct sdl_data *data = arg;
uint32_t row = 0;
uint32_t column = 0;
bool pressed = 0;
switch (event->type) {
case SDL_MOUSEBUTTONDOWN: {
pressed = 1;
column = event->button.x;
row = event->button.y;
} break;
case SDL_MOUSEBUTTONUP: {
pressed = 0;
column = event->button.x;
row = event->button.y;
} break;
case SDL_MOUSEMOTION: {
if (!event->motion.state)
break;
pressed = 1;
column = event->button.x;
row = event->button.y;
} break;
default:
return 1;
}
if (data->enabled && data->callback) {
data->callback(data->dev, row, column, pressed);
}
return 1;
}
static int sdl_configure(const struct device *dev, kscan_callback_t callback)
{
struct sdl_data *data = dev->data;
if (!callback) {
LOG_ERR("Callback is null");
return -EINVAL;
}
LOG_DBG("%s: set callback", dev->name);
data->callback = callback;
return 0;
}
static int sdl_enable_callback(const struct device *dev)
{
struct sdl_data *data = dev->data;
LOG_DBG("%s: enable cb", dev->name);
data->enabled = true;
return 0;
}
static int sdl_disable_callback(const struct device *dev)
{
struct sdl_data *data = dev->data;
LOG_DBG("%s: disable cb", dev->name);
data->enabled = false;
return 0;
}
static int sdl_init(const struct device *dev)
{
struct sdl_data *data = dev->data;
data->dev = dev;
LOG_INF("Init '%s' device", dev->name);
SDL_AddEventWatch(sdl_filter, data);
return 0;
}
static const struct kscan_driver_api sdl_driver_api = {
.config = sdl_configure,
.enable_callback = sdl_enable_callback,
.disable_callback = sdl_disable_callback,
};
static struct sdl_data sdl_data;
DEVICE_DEFINE(sdl, CONFIG_SDL_POINTER_KSCAN_DEV_NAME, sdl_init,
NULL, &sdl_data, NULL,
POST_KERNEL, CONFIG_KSCAN_INIT_PRIORITY,
&sdl_driver_api);