./move.sh

1 files changed, 277 insertions, 0 deletions

diff --git a/src/grp-udev/libudev-core/udev-builtin-keyboard.c b/src/grp-udev/libudev-core/udev-builtin-keyboard.c
new file mode 100644
index 0000000000..aa10beafb0
--- /dev/null
+++ b/src/grp-udev/libudev-core/udev-builtin-keyboard.c
@@ -0,0 +1,277 @@
+/***
+  This file is part of systemd.
+
+  Copyright 2013 Kay Sievers <kay@vrfy.org>
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <linux/input.h>
+
+#include "fd-util.h"
+#include "parse-util.h"
+#include "stdio-util.h"
+#include "string-util.h"
+#include "udev.h"
+
+static const struct key *keyboard_lookup_key(const char *str, unsigned len);
+#include "keyboard-keys-from-name.h"
+
+static int install_force_release(struct udev_device *dev, const unsigned *release, unsigned release_count) {
+        struct udev_device *atkbd;
+        const char *cur;
+        char codes[4096];
+        char *s;
+        size_t l;
+        unsigned i;
+        int ret;
+
+        assert(dev);
+        assert(release);
+
+        atkbd = udev_device_get_parent_with_subsystem_devtype(dev, "serio", NULL);
+        if (!atkbd)
+                return -ENODEV;
+
+        cur = udev_device_get_sysattr_value(atkbd, "force_release");
+        if (!cur)
+                return -ENODEV;
+
+        s = codes;
+        l = sizeof(codes);
+
+        /* copy current content */
+        l = strpcpy(&s, l, cur);
+
+        /* append new codes */
+        for (i = 0; i < release_count; i++)
+                l = strpcpyf(&s, l, ",%u", release[i]);
+
+        log_debug("keyboard: updating force-release list with '%s'", codes);
+        ret = udev_device_set_sysattr_value(atkbd, "force_release", codes);
+        if (ret < 0)
+                log_error_errno(ret, "Error writing force-release attribute: %m");
+        return ret;
+}
+
+static void map_keycode(int fd, const char *devnode, int scancode, const char *keycode)
+{
+        struct {
+                unsigned scan;
+                unsigned key;
+        } map;
+        char *endptr;
+        const struct key *k;
+        unsigned keycode_num;
+
+        /* translate identifier to key code */
+        k = keyboard_lookup_key(keycode, strlen(keycode));
+        if (k) {
+                keycode_num = k->id;
+        } else {
+                /* check if it's a numeric code already */
+                keycode_num = strtoul(keycode, &endptr, 0);
+                if (endptr[0] !='\0') {
+                        log_error("Unknown key identifier '%s'", keycode);
+                        return;
+                }
+        }
+
+        map.scan = scancode;
+        map.key = keycode_num;
+
+        log_debug("keyboard: mapping scan code %d (0x%x) to key code %d (0x%x)",
+                  map.scan, map.scan, map.key, map.key);
+
+        if (ioctl(fd, EVIOCSKEYCODE, &map) < 0)
+                log_error_errno(errno, "Error calling EVIOCSKEYCODE on device node '%s' (scan code 0x%x, key code %d): %m", devnode, map.scan, map.key);
+}
+
+static inline char* parse_token(const char *current, int32_t *val_out) {
+        char *next;
+        int32_t val;
+
+        if (!current)
+                return NULL;
+
+        val = strtol(current, &next, 0);
+        if (*next && *next != ':')
+                return NULL;
+
+        if (next != current)
+                *val_out = val;
+
+        if (*next)
+                next++;
+
+        return next;
+}
+
+static void override_abs(int fd, const char *devnode,
+                         unsigned evcode, const char *value) {
+        struct input_absinfo absinfo;
+        int rc;
+        char *next;
+
+        rc = ioctl(fd, EVIOCGABS(evcode), &absinfo);
+        if (rc < 0) {
+                log_error_errno(errno, "Unable to EVIOCGABS device \"%s\"", devnode);
+                return;
+        }
+
+        next = parse_token(value, &absinfo.minimum);
+        next = parse_token(next, &absinfo.maximum);
+        next = parse_token(next, &absinfo.resolution);
+        next = parse_token(next, &absinfo.fuzz);
+        next = parse_token(next, &absinfo.flat);
+        if (!next) {
+                log_error("Unable to parse EV_ABS override '%s' for '%s'", value, devnode);
+                return;
+        }
+
+        log_debug("keyboard: %x overridden with %"PRIi32"/%"PRIi32"/%"PRIi32"/%"PRIi32"/%"PRIi32" for \"%s\"",
+                  evcode,
+                  absinfo.minimum, absinfo.maximum, absinfo.resolution, absinfo.fuzz, absinfo.flat,
+                  devnode);
+        rc = ioctl(fd, EVIOCSABS(evcode), &absinfo);
+        if (rc < 0)
+                log_error_errno(errno, "Unable to EVIOCSABS device \"%s\"", devnode);
+}
+
+static void set_trackpoint_sensitivity(struct udev_device *dev, const char *value)
+{
+        struct udev_device *pdev;
+        char val_s[DECIMAL_STR_MAX(int)];
+        int r, val_i;
+
+        assert(dev);
+        assert(value);
+
+        /* The sensitivity sysfs attr belongs to the serio parent device */
+        pdev = udev_device_get_parent_with_subsystem_devtype(dev, "serio", NULL);
+        if (!pdev) {
+                log_warning("Failed to get serio parent for '%s'", udev_device_get_devnode(dev));
+                return;
+        }
+
+        r = safe_atoi(value, &val_i);
+        if (r < 0) {
+                log_error("Unable to parse POINTINGSTICK_SENSITIVITY '%s' for '%s'", value, udev_device_get_devnode(dev));
+                return;
+        }
+
+        xsprintf(val_s, "%d", val_i);
+
+        r = udev_device_set_sysattr_value(pdev, "sensitivity", val_s);
+        if (r < 0)
+                log_error_errno(r, "Failed to write 'sensitivity' attribute for '%s': %m", udev_device_get_devnode(pdev));
+}
+
+static int open_device(const char *devnode) {
+        int fd;
+
+        fd = open(devnode, O_RDWR|O_CLOEXEC|O_NONBLOCK|O_NOCTTY);
+        if (fd < 0)
+                return log_error_errno(errno, "Error opening device \"%s\": %m", devnode);
+
+        return fd;
+}
+
+static int builtin_keyboard(struct udev_device *dev, int argc, char *argv[], bool test) {
+        struct udev_list_entry *entry;
+        unsigned release[1024];
+        unsigned release_count = 0;
+        _cleanup_close_ int fd = -1;
+        const char *node;
+
+        node = udev_device_get_devnode(dev);
+        if (!node) {
+                log_error("No device node for \"%s\"", udev_device_get_syspath(dev));
+                return EXIT_FAILURE;
+        }
+
+        udev_list_entry_foreach(entry, udev_device_get_properties_list_entry(dev)) {
+                const char *key;
+                char *endptr;
+
+                key = udev_list_entry_get_name(entry);
+                if (startswith(key, "KEYBOARD_KEY_")) {
+                        const char *keycode;
+                        unsigned scancode;
+
+                        /* KEYBOARD_KEY_<hex scan code>=<key identifier string> */
+                        scancode = strtoul(key + 13, &endptr, 16);
+                        if (endptr[0] != '\0') {
+                                log_warning("Unable to parse scan code from \"%s\"", key);
+                                continue;
+                        }
+
+                        keycode = udev_list_entry_get_value(entry);
+
+                        /* a leading '!' needs a force-release entry */
+                        if (keycode[0] == '!') {
+                                keycode++;
+
+                                release[release_count] = scancode;
+                                if (release_count <  ELEMENTSOF(release)-1)
+                                        release_count++;
+
+                                if (keycode[0] == '\0')
+                                        continue;
+                        }
+
+                        if (fd == -1) {
+                                fd = open_device(node);
+                                if (fd < 0)
+                                        return EXIT_FAILURE;
+                        }
+
+                        map_keycode(fd, node, scancode, keycode);
+                } else if (startswith(key, "EVDEV_ABS_")) {
+                        unsigned evcode;
+
+                        /* EVDEV_ABS_<EV_ABS code>=<min>:<max>:<res>:<fuzz>:<flat> */
+                        evcode = strtoul(key + 10, &endptr, 16);
+                        if (endptr[0] != '\0') {
+                                log_warning("Unable to parse EV_ABS code from \"%s\"", key);
+                                continue;
+                        }
+
+                        if (fd == -1) {
+                                fd = open_device(node);
+                                if (fd < 0)
+                                        return EXIT_FAILURE;
+                        }
+
+                        override_abs(fd, node, evcode, udev_list_entry_get_value(entry));
+                } else if (streq(key, "POINTINGSTICK_SENSITIVITY"))
+                        set_trackpoint_sensitivity(dev, udev_list_entry_get_value(entry));
+        }
+
+        /* install list of force-release codes */
+        if (release_count > 0)
+                install_force_release(dev, release, release_count);
+
+        return EXIT_SUCCESS;
+}
+
+const struct udev_builtin udev_builtin_keyboard = {
+        .name = "keyboard",
+        .cmd = builtin_keyboard,
+        .help = "Keyboard scan code to key mapping",
+};