diff options
author | Paul Kocialkowski <contact@paulk.fr> | 2015-06-15 16:22:16 +0200 |
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committer | Andreas Blaesius <skate4life@gmx.de> | 2015-08-15 14:21:25 -0700 |
commit | af6a75109ed68e89998f221ba27fe15980f01714 (patch) | |
tree | ae474f87650bcdc8be89f53c26bfcd0a05b77175 /libsensors/orientationd/input.c | |
parent | c9541c3d21b7f1ada9c37fb65d9abace51cdcdc5 (diff) | |
download | device_samsung_espressowifi-af6a75109ed68e89998f221ba27fe15980f01714.zip device_samsung_espressowifi-af6a75109ed68e89998f221ba27fe15980f01714.tar.gz device_samsung_espressowifi-af6a75109ed68e89998f221ba27fe15980f01714.tar.bz2 |
espresso-common: libsensors: sync with replicant
Change-Id: Idcb9a57af699833c504f236692a6bdb1ef33c98e
Diffstat (limited to 'libsensors/orientationd/input.c')
-rw-r--r-- | libsensors/orientationd/input.c | 230 |
1 files changed, 220 insertions, 10 deletions
diff --git a/libsensors/orientationd/input.c b/libsensors/orientationd/input.c index eea1494..1afa2b8 100644 --- a/libsensors/orientationd/input.c +++ b/libsensors/orientationd/input.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2013 Paul Kocialkowski + * Copyright (C) 2013 Paul Kocialkowski <contact@paulk.fr> * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -16,28 +16,117 @@ */ #include <stdlib.h> -#include <stdint.h> -#include <string.h> #include <unistd.h> -#include <dirent.h> -#include <stdio.h> +#include <stdint.h> #include <fcntl.h> #include <errno.h> - +#include <dirent.h> #include <linux/ioctl.h> #include <linux/input.h> +#include <linux/uinput.h> + +#define LOG_TAG "orientationd" +#include <utils/Log.h> #include "orientationd.h" -int64_t input_timestamp(struct input_event *event) +void input_event_set(struct input_event *event, int type, int code, int value) { if (event == NULL) + return; + + memset(event, 0, sizeof(struct input_event)); + + event->type = type, + event->code = code; + event->value = value; + + gettimeofday(&event->time, NULL); +} + +long int timestamp(struct timeval *time) +{ + if (time == NULL) return -1; - return event->time.tv_sec*1000000000LL + event->time.tv_usec*1000; + return time->tv_sec * 1000000000LL + time->tv_usec * 1000; } -int input_open(char *name, int write) +long int input_timestamp(struct input_event *event) +{ + if (event == NULL) + return -1; + + return timestamp(&event->time); +} + +int uinput_rel_create(const char *name) +{ + struct uinput_user_dev uinput_dev; + int uinput_fd; + int rc; + + if (name == NULL) + return -1; + + uinput_fd = open("/dev/uinput", O_WRONLY | O_NONBLOCK); + if (uinput_fd < 0) { + ALOGE("%s: Unable to open uinput device", __func__); + goto error; + } + + memset(&uinput_dev, 0, sizeof(uinput_dev)); + + strncpy(uinput_dev.name, name, sizeof(uinput_dev.name)); + uinput_dev.id.bustype = BUS_I2C; + uinput_dev.id.vendor = 0; + uinput_dev.id.product = 0; + uinput_dev.id.version = 0; + + rc = 0; + rc |= ioctl(uinput_fd, UI_SET_EVBIT, EV_REL); + rc |= ioctl(uinput_fd, UI_SET_RELBIT, REL_X); + rc |= ioctl(uinput_fd, UI_SET_RELBIT, REL_Y); + rc |= ioctl(uinput_fd, UI_SET_RELBIT, REL_Z); + rc |= ioctl(uinput_fd, UI_SET_EVBIT, EV_SYN); + + if (rc < 0) { + ALOGE("%s: Unable to set uinput bits", __func__); + goto error; + } + + rc = write(uinput_fd, &uinput_dev, sizeof(uinput_dev)); + if (rc < 0) { + ALOGE("%s: Unable to write uinput device", __func__); + goto error; + } + + rc = ioctl(uinput_fd, UI_DEV_CREATE); + if (rc < 0) { + ALOGE("%s: Unable to create uinput device", __func__); + goto error; + } + + usleep(3000); + + return uinput_fd; + +error: + if (uinput_fd >= 0) + close(uinput_fd); + + return -1; +} + +void uinput_destroy(int uinput_fd) +{ + if (uinput_fd < 0) + return; + + ioctl(uinput_fd, UI_DEV_DESTROY); +} + +int input_open(char *name) { DIR *d; struct dirent *di; @@ -60,7 +149,7 @@ int input_open(char *name, int write) continue; snprintf(path, PATH_MAX, "/dev/input/%s", di->d_name); - fd = open(path, write ? O_RDWR : O_RDONLY | O_NONBLOCK); + fd = open(path, O_RDWR | O_NONBLOCK); if (fd < 0) continue; @@ -123,3 +212,124 @@ int sysfs_path_prefix(char *name, char *path_prefix) return -1; } + +int sysfs_value_read(char *path) +{ + char buffer[100]; + int value; + int fd = -1; + int rc; + + if (path == NULL) + return -1; + + fd = open(path, O_RDONLY); + if (fd < 0) + goto error; + + rc = read(fd, &buffer, sizeof(buffer)); + if (rc <= 0) + goto error; + + value = atoi(buffer); + goto complete; + +error: + value = -1; + +complete: + if (fd >= 0) + close(fd); + + return value; +} + +int sysfs_value_write(char *path, int value) +{ + char buffer[100]; + int fd = -1; + int rc; + + if (path == NULL) + return -1; + + fd = open(path, O_WRONLY); + if (fd < 0) + goto error; + + snprintf((char *) &buffer, sizeof(buffer), "%d\n", value); + + rc = write(fd, buffer, strlen(buffer)); + if (rc < (int) strlen(buffer)) + goto error; + + rc = 0; + goto complete; + +error: + rc = -1; + +complete: + if (fd >= 0) + close(fd); + + return rc; +} + +int sysfs_string_read(char *path, char *buffer, size_t length) +{ + int fd = -1; + int rc; + + if (path == NULL || buffer == NULL || length == 0) + return -1; + + fd = open(path, O_RDONLY); + if (fd < 0) + goto error; + + rc = read(fd, buffer, length); + if (rc <= 0) + goto error; + + rc = 0; + goto complete; + +error: + rc = -1; + +complete: + if (fd >= 0) + close(fd); + + return rc; +} + +int sysfs_string_write(char *path, char *buffer, size_t length) +{ + int fd = -1; + int rc; + + if (path == NULL || buffer == NULL || length == 0) + return -1; + + fd = open(path, O_WRONLY); + if (fd < 0) + goto error; + + rc = write(fd, buffer, length); + if (rc <= 0) + goto error; + + rc = 0; + goto complete; + +error: + rc = -1; + +complete: + if (fd >= 0) + close(fd); + + return rc; +} |