/****************************************************************************
* apps/system/input/input.c
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <nuttx/input/buttons.h>
#include <nuttx/input/touchscreen.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define DEFATLT_INTERVAL 30
#define DEFATLT_DISTANCE 10
#define DELAY_MS(ms) usleep((ms) * 1000)
#define ABS(a) ((a) > 0 ? (a) : -(a))
#ifndef MAX
# define MAX(a,b) ((a) > (b) ? (a) : (b))
#endif
/****************************************************************************
* Private Types
****************************************************************************/
struct input_cmd_s
{
const char *cmd; /* Command name */
int (*func)(int argc, char **argv); /* Function corresponding to command */
};
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
static int input_utouch_tap(int argc, char **argv);
static int input_utouch_swipe(int argc, char **argv);
static int input_sleep(int argc, char **argv);
static int input_help(int argc, char **argv);
static int input_button(int argc, char **argv);
static void input_utouch_move(int fd, int x, int y, int pendown);
/****************************************************************************
* Private Data
****************************************************************************/
static const struct input_cmd_s g_input_cmd_list[] =
{
{"help", input_help },
{"sleep", input_sleep },
{"tap", input_utouch_tap },
{"swipe", input_utouch_swipe},
{"button", input_button },
{NULL, NULL }
};
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: input_utouch_move
****************************************************************************/
static void input_utouch_move(int fd, int x, int y, int pendown)
{
struct touch_sample_s sample; /* Sampled touch point data */
/* Handle the change from pen down to pen up */
if (pendown != TOUCH_DOWN)
{
sample.point[0].flags = TOUCH_UP | TOUCH_ID_VALID;
}
else
{
sample.point[0].x = x;
sample.point[0].y = y;
sample.point[0].pressure = 42;
sample.point[0].flags = TOUCH_DOWN | TOUCH_ID_VALID |
TOUCH_POS_VALID | TOUCH_PRESSURE_VALID;
}
sample.npoints = 1;
sample.point[0].h = 1;
sample.point[0].w = 1;
write(fd, &sample, sizeof(struct touch_sample_s));
}
/****************************************************************************
* Name: input_sleep
****************************************************************************/
static int input_sleep(int argc, char **argv)
{
if (argc != 2)
{
return -EINVAL;
}
DELAY_MS(atoi(argv[1]));
return 0;
}
/****************************************************************************
* Name: input_utouch_tap
****************************************************************************/
static int input_utouch_tap(int argc, char **argv)
{
int fd;
int x;
int y;
int interval = DEFATLT_INTERVAL;
if (argc < 3 || argc > 4)
{
return -EINVAL;
}
if (argc == 4)
{
interval = atoi(argv[3]);
}
x = atoi(argv[1]);
y = atoi(argv[2]);
fd = open("/dev/utouch", O_WRONLY);
if (fd < 0)
{
return -errno;
}
input_utouch_move(fd, x, y, TOUCH_DOWN);
DELAY_MS(interval);
input_utouch_move(fd, 0, 0, TOUCH_UP);
close(fd);
return 0;
}
/****************************************************************************
* Name: input_utouch_swipe
****************************************************************************/
static int input_utouch_swipe(int argc, char **argv)
{
int i;
int fd;
int x0;
int x1;
int y0;
int y1;
int count;
int duration;
int distance = DEFATLT_DISTANCE;
int interval = DEFATLT_INTERVAL;
if (argc < 5 || argc > 7)
{
return -EINVAL;
}
x0 = atoi(argv[1]);
x1 = atoi(argv[3]);
y0 = atoi(argv[2]);
y1 = atoi(argv[4]);
fd = open("/dev/utouch", O_WRONLY);
if (fd < 0)
{
return -errno;
}
/* Number of times to calculate reports */
if (argc >= 5)
{
duration = atoi(argv[5]);
}
if (argc >= 6)
{
distance = atoi(argv[6]);
distance = distance == 0 ? DEFATLT_DISTANCE : distance;
}
count = MAX(ABS(x0 - x1), ABS(y0 - y1)) / distance;
interval = duration == 0 ? DEFATLT_INTERVAL : duration / count;
for (i = 0; i <= count; i++)
{
int x = x0 + (x1 - x0) / count * i;
int y = y0 + (y1 - y0) / count * i;
input_utouch_move(fd, x, y, TOUCH_DOWN);
DELAY_MS(interval);
}
input_utouch_move(fd, 0, 0, TOUCH_UP);
close(fd);
return 0;
}
static int input_button(int argc, char **argv)
{
int fd;
btn_buttonset_t button;
if (argc != 2)
{
return -EINVAL;
}
button = strtoul(argv[1], NULL, 0);
fd = open("/dev/ubutton", O_WRONLY);
if (fd < 0)
{
return -errno;
}
write(fd, &button, sizeof(button));
close(fd);
return 0;
}
/****************************************************************************
* Name: intput_help
****************************************************************************/
static int input_help(int argc, char **argv)
{
printf("Usage: input <command> [<arg>...]\n");
printf("The commands and default sources are:\n"
"\thelp\n"
"\tsleep <time(ms)>\n"
"\ttap <x> <y> [interval(ms)]\n"
"\tswipe <x1> <y1> <x2> <y2> [duration(ms)] [distance(pix)]\n"
"\tbutton <buttonvalue>\n"
"\tinterval: Time interval between two reports of sample\n"
"\tduration: Duration of sliding\n"
"\tdistance: Report the pixel distance of the sample twice\n"
"\tbuttonvalue: button value in hex format\n");
return 0;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: input_main
*
* Description:
* Main entry point for the serial terminal example.
*
****************************************************************************/
int main(int argc, char **argv)
{
int i;
int ret = -EINVAL;
if (argv[1] == NULL)
{
goto errout;
}
for (i = 0; g_input_cmd_list[i].cmd != NULL; i++)
{
/* Matching the function corresponding to the command */
if (strcmp(g_input_cmd_list[i].cmd, argv[1]) == 0)
{
ret = g_input_cmd_list[i].func(argc - 1, &argv[1]);
break;
}
}
errout:
if (ret != 0)
{
input_help(argc, argv);
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}