/*
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* Copyright (c) 2015 Cedric Hnyda <chnyda@suse.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* Create a virtual device (mouse), send events to /dev/uinput
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* and check that the events are well received in /dev/input/eventX
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*/
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#include <linux/input.h>
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#include "input_helper.h"
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#include "test.h"
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#include "safe_macros.h"
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#include "lapi/fcntl.h"
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#define NB_TEST 20
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static void setup(void);
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static void send_events(void);
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static int verify_data(struct input_event *iev, int nb);
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static int check_events(void);
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static void cleanup(void);
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static int fd;
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static int fd2;
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char *TCID = "input01";
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int main(int ac, char **av)
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{
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int lc;
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int pid;
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tst_parse_opts(ac, av, NULL, NULL);
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setup();
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for (lc = 0; TEST_LOOPING(lc); ++lc) {
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pid = tst_fork();
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switch (pid) {
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case 0:
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send_events();
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exit(0);
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case -1:
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tst_brkm(TBROK | TERRNO, cleanup, "fork() failed");
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default:
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if (check_events())
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tst_resm(TFAIL, "Wrong data read from eventX");
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else
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tst_resm(TPASS, "Data received from eventX");
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break;
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}
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SAFE_WAITPID(NULL, pid, NULL, 0);
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}
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cleanup();
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tst_exit();
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}
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static void setup(void)
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{
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tst_require_root();
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fd = open_uinput();
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setup_mouse_events(fd);
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create_device(fd);
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fd2 = open_device();
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}
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static void send_events(void)
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{
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int nb;
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for (nb = 0; nb < NB_TEST; ++nb) {
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send_rel_move(fd, 10, 1);
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usleep(1000);
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}
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}
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static int check_events(void)
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{
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int nb, rd;
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unsigned int i;
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struct input_event iev[64];
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nb = 0;
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while (nb < NB_TEST * 3) {
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rd = read(fd2, iev, sizeof(iev));
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if (rd < 0)
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tst_brkm(TBROK | TERRNO, cleanup, "read()");
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if (rd == 0 || rd % sizeof(struct input_event)) {
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tst_resm(TINFO, "read() returned unexpected %i", rd);
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return 1;
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}
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for (i = 0; i < rd / sizeof(struct input_event); i++) {
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if (verify_data(&iev[i], nb++))
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return 1;
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}
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}
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return 0;
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}
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static int verify_data(struct input_event *iev, int nb)
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{
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if (nb % 3 == 0) {
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if (iev->type != EV_REL) {
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tst_resm(TINFO,
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"%i: Unexpected event type %i expected %i",
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nb, iev->type, EV_REL);
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return 1;
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}
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if (iev->code != REL_X)
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return 1;
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if (iev->value != 10)
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return 1;
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return 0;
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}
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if (nb % 3 == 1) {
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if (iev->type != EV_REL) {
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tst_resm(TINFO,
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"%i: Unexpected event type %i expected %i",
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nb, iev->type, EV_REL);
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return 1;
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}
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if (iev->code != REL_Y)
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return 1;
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if (iev->value != 1)
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return 1;
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return 0;
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}
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if (nb % 3 == 2) {
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if (iev->type != EV_SYN) {
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tst_resm(TINFO,
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"%i: Unexpected event type %i expected %i",
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nb, iev->type, EV_SYN);
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return 1;
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}
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if (iev->code != 0)
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return 1;
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if (iev->value != 0)
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return 1;
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return 0;
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}
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return 1;
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}
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static void cleanup(void)
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{
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if (fd2 > 0 && close(fd2))
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tst_resm(TWARN | TERRNO, "close(fd2)");
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destroy_device(fd);
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}
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