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libwacom.c
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libwacom.c
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/*
* Copyright © 2011 Red Hat, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of Red Hat
* not be used in advertising or publicity pertaining to distribution
* of the software without specific, written prior permission. Red
* Hat makes no representations about the suitability of this software
* for any purpose. It is provided "as is" without express or implied
* warranty.
*
* THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
* NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Authors:
* Peter Hutterer (peter.hutterer@redhat.com)
*/
#include "config.h"
#include "libwacom.h"
#include "libwacomint.h"
#include <assert.h>
#include <stdlib.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <gudev/gudev.h>
#include <libevdev/libevdev.h>
#if !HAVE_G_MEMDUP2
#define g_memdup2 g_memdup
#endif
static const WacomDevice *
libwacom_get_device(const WacomDeviceDatabase *db, const char *match)
{
return (WacomDevice *) g_hash_table_lookup (db->device_ht, match);
}
static gboolean
is_tablet (GUdevDevice *device)
{
return g_udev_device_get_property_as_boolean (device, "ID_INPUT_TABLET");
}
static gboolean
is_touchpad (GUdevDevice *device)
{
return g_udev_device_get_property_as_boolean (device, "ID_INPUT_TOUCHPAD");
}
static gboolean
is_tablet_or_touchpad (GUdevDevice *device)
{
return is_touchpad (device) || is_tablet (device);
}
/* Overriding SUBSYSTEM isn't allowed in udev (works sometimes, but not
* always). For evemu devices we need to set custom properties to make them
* detected by libwacom.
*/
static char *
get_uinput_subsystem (GUdevDevice *device)
{
const char *bus_str;
GUdevDevice *parent;
bus_str = NULL;
parent = g_object_ref (device);
while (parent && !g_udev_device_get_property_as_boolean (parent, "UINPUT_DEVICE")) {
GUdevDevice *old_parent = parent;
parent = g_udev_device_get_parent (old_parent);
g_object_unref (old_parent);
}
if (parent) {
bus_str = g_udev_device_get_property (parent, "UINPUT_SUBSYSTEM");
g_object_unref (parent);
}
return bus_str ? g_strdup (bus_str) : NULL;
}
static gboolean
get_bus_vid_pid (GUdevDevice *device,
WacomBusType *bus,
int *vendor_id,
int *product_id,
WacomError *error)
{
GUdevDevice *parent;
const char *product_str;
gchar **splitted_product = NULL;
unsigned int bus_id;
gboolean retval = FALSE;
/* Parse that:
* E: PRODUCT=5/56a/81/100
* into:
* vendor 0x56a
* product 0x81 */
parent = g_object_ref (device);
product_str = g_udev_device_get_property (device, "PRODUCT");
while (!product_str && parent) {
GUdevDevice *old_parent = parent;
parent = g_udev_device_get_parent (old_parent);
if (parent)
product_str = g_udev_device_get_property (parent, "PRODUCT");
g_object_unref (old_parent);
}
if (!product_str)
/* PRODUCT not found, hoping the old method will work */
goto out;
splitted_product = g_strsplit (product_str, "/", 4);
if (g_strv_length (splitted_product) != 4) {
libwacom_error_set(error, WERROR_UNKNOWN_MODEL, "Unable to parse model identification");
goto out;
}
bus_id = (int)strtoul (splitted_product[0], NULL, 16);
*vendor_id = (int)strtol (splitted_product[1], NULL, 16);
*product_id = (int)strtol (splitted_product[2], NULL, 16);
switch (bus_id) {
case 3:
*bus = WBUSTYPE_USB;
retval = TRUE;
break;
case 5:
*bus = WBUSTYPE_BLUETOOTH;
retval = TRUE;
break;
case 24:
*bus = WBUSTYPE_I2C;
retval = TRUE;
break;
}
out:
if (splitted_product)
g_strfreev (splitted_product);
if (parent)
g_object_unref (parent);
return retval;
}
static char *
get_bus (GUdevDevice *device)
{
const char *subsystem;
char *bus_str;
GUdevDevice *parent;
bus_str = get_uinput_subsystem (device);
if (bus_str)
return bus_str;
subsystem = g_udev_device_get_subsystem (device);
parent = g_object_ref (device);
while (parent && subsystem &&
(g_str_equal(subsystem, "input") || g_str_equal (subsystem, "hid"))) {
GUdevDevice *old_parent = parent;
parent = g_udev_device_get_parent (old_parent);
if (parent)
subsystem = g_udev_device_get_subsystem (parent);
g_object_unref (old_parent);
}
if (parent) {
if (subsystem && (g_str_equal(subsystem, "tty") || g_str_equal(subsystem, "serio")))
bus_str = g_strdup ("serial");
else
bus_str = g_strdup (subsystem);
g_object_unref (parent);
} else
bus_str = strdup("unknown");
return bus_str;
}
static GUdevDevice *
client_query_by_subsystem_and_device_file (GUdevClient *client,
const char *subsystem,
const char *path)
{
GList *l, *devices;
GUdevDevice *ret = NULL;
devices = g_udev_client_query_by_subsystem (client, subsystem);
for (l = devices; l != NULL; l = l->next) {
if (!ret && g_strcmp0 (g_udev_device_get_device_file (l->data), path) == 0)
ret = g_object_ref (l->data);
g_object_unref (l->data);
}
g_list_free (devices);
return ret;
}
static char *
get_device_prop(GUdevDevice *device, const char *propname)
{
char *value = NULL;
GUdevDevice *parent = g_object_ref(device);
do {
GUdevDevice *next;
const char *v = g_udev_device_get_property(parent, propname);
if (v) {
/* NAME and UNIQ properties are enclosed with quotes */
size_t offset = v[0] == '"' ? 1 : 0;
value = g_strdup(v + offset);
if (value[strlen(value) - 1] == '"')
value[strlen(value) - 1] = '\0';
break;
}
next = g_udev_device_get_parent (parent);
g_object_unref(parent);
parent = next;
} while (parent);
if (parent)
g_object_unref(parent);
return value;
}
static char *
parse_uniq(char *uniq)
{
GRegex *regex;
GMatchInfo *match_info;
if (!uniq)
return NULL;
if (strlen(uniq) == 0) {
g_free (uniq);
return NULL;
}
/* The UCLogic kernel driver returns firmware names with form
* <vendor>_<model>_<version>. Remove the version from `uniq` to avoid
* mismatches on firmware updates. */
regex = g_regex_new ("(.*_.*)_.*$", 0, 0, NULL);
g_regex_match (regex, uniq, 0, &match_info);
if (g_match_info_matches (match_info)) {
gchar *tmp = uniq;
uniq = g_match_info_fetch (match_info, 1);
g_free (tmp);
}
g_match_info_free (match_info);
g_regex_unref (regex);
return uniq;
}
static gboolean
get_device_info (const char *path,
int *vendor_id,
int *product_id,
char **name,
char **uniq,
WacomBusType *bus,
WacomIntegrationFlags *integration_flags,
WacomError *error)
{
GUdevClient *client;
GUdevDevice *device;
const char * const subsystems[] = { "input", NULL };
gboolean retval;
char *bus_str;
const char *devname;
retval = FALSE;
/* The integration flags from device info are unset by default */
*integration_flags = WACOM_DEVICE_INTEGRATED_UNSET;
*name = NULL;
*uniq = NULL;
bus_str = NULL;
client = g_udev_client_new (subsystems);
device = client_query_by_subsystem_and_device_file (client, subsystems[0], path);
if (device == NULL)
device = g_udev_client_query_by_device_file (client, path);
if (device == NULL) {
libwacom_error_set(error, WERROR_INVALID_PATH, "Could not find device '%s' in udev", path);
goto out;
}
/* Touchpads are only for the "Finger" part of Bamboo devices */
if (!is_tablet_or_touchpad(device)) {
GUdevDevice *parent;
parent = g_udev_device_get_parent(device);
if (!parent || !is_tablet_or_touchpad(parent)) {
libwacom_error_set(error, WERROR_INVALID_PATH, "Device '%s' is not a tablet", path);
if (parent)
g_object_unref (parent);
goto out;
}
g_object_unref (parent);
}
/* Is the device integrated in display? */
devname = g_udev_device_get_name (device);
if (devname != NULL) {
char *sysfs_path, *contents;
sysfs_path = g_build_filename ("/sys/class/input", devname, "device/properties", NULL);
if (g_file_get_contents (sysfs_path, &contents, NULL, NULL)) {
int flag;
flag = atoi(contents);
flag &= (1 << INPUT_PROP_DIRECT) | (1 << INPUT_PROP_POINTER);
/*
* To ensure we are dealing with a screen tablet, need
* to check that it has DIRECT and non-POINTER (DIRECT
* alone is not sufficient since it's set for drawing
* tablets as well)
*/
if (flag == (1 << INPUT_PROP_DIRECT))
*integration_flags = WACOM_DEVICE_INTEGRATED_DISPLAY;
else
*integration_flags = WACOM_DEVICE_INTEGRATED_NONE;
g_free (contents);
}
g_free (sysfs_path);
}
*name = get_device_prop (device, "NAME");
*uniq = parse_uniq(get_device_prop(device, "UNIQ"));
if (*name == NULL)
goto out;
/* Parse the PRODUCT attribute (for Bluetooth, USB, I2C) */
retval = get_bus_vid_pid (device, bus, vendor_id, product_id, error);
if (retval)
goto out;
bus_str = get_bus (device);
*bus = bus_from_str (bus_str);
if (*bus == WBUSTYPE_SERIAL) {
if (is_touchpad (device))
goto out;
/* The serial bus uses 0:0 as the vid/pid */
*vendor_id = 0;
*product_id = 0;
retval = TRUE;
} else {
libwacom_error_set(error, WERROR_UNKNOWN_MODEL, "Unsupported bus '%s'", bus_str);
}
out:
if (bus_str != NULL)
g_free (bus_str);
if (retval == FALSE) {
g_free (*name);
g_free (*uniq);
}
if (device != NULL)
g_object_unref (device);
if (client != NULL)
g_object_unref (client);
return retval;
}
static WacomDevice *
libwacom_copy(const WacomDevice *device)
{
WacomDevice *d;
GHashTableIter iter;
gpointer k, v;
d = g_new0 (WacomDevice, 1);
g_atomic_int_inc(&d->refcnt);
d->name = g_strdup (device->name);
d->model_name = g_strdup (device->model_name);
d->width = device->width;
d->height = device->height;
d->integration_flags = device->integration_flags;
d->layout = g_strdup(device->layout);
d->matches = g_array_sized_new(TRUE, TRUE, sizeof(WacomDevice*),
device->matches->len);
for (guint i = 0; i < device->matches->len; i++) {
WacomMatch *m = g_array_index(device->matches, WacomMatch*, i);
libwacom_match_ref(m);
g_array_append_val(d->matches, m);
}
d->match = libwacom_match_ref(device->match);
if (device->paired)
d->paired = libwacom_match_ref(device->paired);
d->cls = device->cls;
d->num_strips = device->num_strips;
d->num_rings = device->num_rings;
d->num_dials = device->num_dials;
d->features = device->features;
d->strips_num_modes = device->strips_num_modes;
d->dial_num_modes = device->dial_num_modes;
d->dial2_num_modes = device->dial2_num_modes;
d->ring_num_modes = device->ring_num_modes;
d->ring2_num_modes = device->ring2_num_modes;
d->styli = g_array_sized_new(FALSE, FALSE, sizeof(int),
device->styli->len);
for (guint i = 0; i < device->styli->len; i++) {
int id = g_array_index(device->styli, int, i);
g_array_append_val(d->styli, id);
}
d->status_leds = g_array_sized_new(FALSE, FALSE,
sizeof(WacomStatusLEDs),
device->status_leds->len);
for (guint i = 0; i < device->status_leds->len; i++) {
g_array_append_val(d->status_leds,
g_array_index(device->status_leds, WacomStatusLEDs, i));
}
d->buttons = g_hash_table_new_full(g_direct_hash, g_direct_equal,
NULL, g_free);
g_hash_table_iter_init(&iter, device->buttons);
while (g_hash_table_iter_next(&iter, &k, &v)) {
WacomButton *a = v;
WacomButton *b = g_memdup2(a, sizeof(WacomButton));
g_hash_table_insert(d->buttons, k, b);
}
d->num_keycodes = device->num_keycodes;
memcpy(d->keycodes, device->keycodes, sizeof(device->keycodes));
return d;
}
static bool
match_is_equal(const WacomMatch *a, const WacomMatch *b)
{
return g_str_equal(a->match, b->match);
}
static bool
matches_are_equal(const WacomDevice *a, const WacomDevice *b)
{
const WacomMatch **ma, **mb, **match_a, **match_b;
ma = libwacom_get_matches(a);
mb = libwacom_get_matches(b);
for (match_a = ma; *match_a; match_a++) {
int found = 0;
for (match_b = mb; !found && *match_b; match_b++) {
if (match_is_equal(*match_a, *match_b))
found = 1;
}
if (!found)
return false;
}
return true;
}
/* Compare layouts based on file name, stripping the full path */
static gboolean
libwacom_same_layouts (const WacomDevice *a, const WacomDevice *b)
{
gchar *file1, *file2;
gboolean rc;
/* Conveniently handle the null case */
if (a->layout == b->layout)
return TRUE;
file1 = NULL;
file2 = NULL;
if (a->layout != NULL)
file1 = g_path_get_basename (a->layout);
if (b->layout != NULL)
file2 = g_path_get_basename (b->layout);
rc = (g_strcmp0 (file1, file2) == 0);
g_free (file1);
g_free (file2);
return rc;
}
LIBWACOM_EXPORT int
libwacom_compare(const WacomDevice *a, const WacomDevice *b, WacomCompareFlags flags)
{
GHashTableIter iter;
gpointer k, v;
g_return_val_if_fail(a || b, 0);
if (!a || !b)
return 1;
if (a == b)
return 0;
if (!g_str_equal(a->name, b->name))
return 1;
if (a->width != b->width || a->height != b->height)
return 1;
if (!libwacom_same_layouts (a, b))
return 1;
if (a->integration_flags != b->integration_flags)
return 1;
if (a->cls != b->cls)
return 1;
if (a->num_strips != b->num_strips)
return 1;
if (a->num_dials != b->num_dials)
return 1;
if (a->features != b->features)
return 1;
if (a->strips_num_modes != b->strips_num_modes)
return 1;
if (a->dial_num_modes != b->dial_num_modes)
return 1;
if (a->dial2_num_modes != b->dial2_num_modes)
return 1;
if (a->ring_num_modes != b->ring_num_modes)
return 1;
if (a->ring2_num_modes != b->ring2_num_modes)
return 1;
if (g_hash_table_size(a->buttons) != g_hash_table_size(b->buttons))
return 1;
if (a->styli->len != b->styli->len)
return 1;
if (memcmp(a->styli->data, b->styli->data, sizeof(int) * a->styli->len) != 0)
return 1;
if (a->status_leds->len != b->status_leds->len)
return 1;
if (a->status_leds->len > 0 &&
memcmp(a->status_leds->data, b->status_leds->data,
sizeof(WacomStatusLEDs) * a->status_leds->len) != 0)
return 1;
g_hash_table_iter_init(&iter, a->buttons);
while (g_hash_table_iter_next(&iter, &k, &v)) {
WacomButton *ba = v;
WacomButton *bb = g_hash_table_lookup(b->buttons, k);
if (!bb || ba->flags != bb->flags || ba->code != bb->code)
return 1;
}
if ((a->paired == NULL && b->paired != NULL) ||
(a->paired != NULL && b->paired == NULL) ||
(a->paired && b->paired && !match_is_equal(a->paired, b->paired)))
return 1;
if ((flags & WCOMPARE_MATCHES) && !matches_are_equal(a, b))
return 1;
else if (!match_is_equal(a->match, b->match))
return 1;
return 0;
}
static const WacomDevice *
libwacom_new (const WacomDeviceDatabase *db, const char *name, const char *uniq, int vendor_id, int product_id, WacomBusType bus, WacomError *error)
{
const WacomDevice *device;
char *match;
if (!db) {
libwacom_error_set(error, WERROR_INVALID_DB, "db is NULL");
return NULL;
}
match = make_match_string(name, uniq, bus, vendor_id, product_id);
device = libwacom_get_device(db, match);
g_free (match);
return device;
}
static bool
builder_is_name_only(const WacomBuilder *builder)
{
return builder->device_name != NULL && builder->match_name == NULL &&
builder->uniq == NULL &&
builder->vendor_id == 0 && builder->product_id == 0 &&
builder->bus == WBUSTYPE_UNKNOWN;
}
static bool
builder_is_uniq_only(const WacomBuilder *builder)
{
return builder->device_name == NULL && builder->match_name == NULL &&
builder->uniq != NULL &&
builder->vendor_id == 0 && builder->product_id == 0 &&
builder->bus == WBUSTYPE_UNKNOWN;
}
/**
* Return a copy of the given device or, if NULL, the fallback device with
* the name changed to the override name.
*/
static WacomDevice *
fallback_or_device(const WacomDeviceDatabase *db, const WacomDevice *device,
const char *name_override, WacomFallbackFlags fallback_flags)
{
WacomDevice *copy = NULL;
const WacomDevice *fallback;
const char *fallback_name = NULL;
if (device != NULL) {
return libwacom_copy(device);
}
switch (fallback_flags) {
case WFALLBACK_NONE:
return NULL;
case WFALLBACK_GENERIC:
fallback_name = "generic";
break;
default:
g_assert_not_reached();
break;
}
fallback = libwacom_get_device(db, fallback_name);
if (fallback == NULL)
return NULL;
copy = libwacom_copy(fallback);
if (name_override != NULL) {
g_free(copy->name);
copy->name = g_strdup(name_override);
}
return copy;
}
static gint
find_named_device(const WacomDevice *device, const char *name)
{
return g_strcmp0(device->name, name);
}
static gint
find_uniq_device(const WacomDevice *device, const char *uniq)
{
const WacomMatch **matches = libwacom_get_matches(device);
for (const WacomMatch **match = matches; *match; match++) {
if (uniq && (*match)->uniq && g_str_equal((*match)->uniq, uniq))
return 0;
}
return -1;
}
LIBWACOM_EXPORT WacomDevice*
libwacom_new_from_builder(const WacomDeviceDatabase *db, const WacomBuilder *builder,
WacomFallbackFlags fallback, WacomError *error)
{
const WacomDevice *device = NULL;
WacomDevice *ret = NULL;
switch (fallback) {
case WFALLBACK_NONE:
case WFALLBACK_GENERIC:
break;
default:
libwacom_error_set(error, WERROR_BUG_CALLER, "invalid fallback flags");
return NULL;
}
if (!db) {
libwacom_error_set(error, WERROR_INVALID_DB, "db is NULL");
return NULL;
}
/* Name-only matches behave like new_from_name */
if (builder_is_name_only(builder)) {
GList *keys = g_hash_table_get_values(db->device_ht);
GList *entry = g_list_find_custom(keys, builder->device_name, (GCompareFunc)find_named_device);
if (entry)
device = entry->data;
ret = fallback_or_device(db, device, builder->device_name, fallback);
g_list_free (keys);
/* Uniq-only behaves like new_from_name but matches on uniq in the match strings */
} else if (builder_is_uniq_only(builder)) {
GList *keys = g_hash_table_get_values(db->device_ht);
GList *entry = g_list_find_custom(keys, builder->uniq, (GCompareFunc)find_uniq_device);
if (entry)
device = entry->data;
ret = fallback_or_device(db, device, builder->device_name, fallback);
g_list_free (keys);
} else {
WacomBusType all_busses[] = {
WBUSTYPE_USB,
WBUSTYPE_I2C,
WBUSTYPE_BLUETOOTH,
WBUSTYPE_UNKNOWN,
};
WacomBusType fixed_bus[] = {
builder->bus,
WBUSTYPE_UNKNOWN,
};
WacomBusType *bus;
int vendor_id, product_id;
char *name, *uniq;
const char *used_match_name = NULL;
const char *used_match_uniq = NULL;
WacomMatch *used_match;
vendor_id = builder->vendor_id;
product_id = builder->product_id;
name = builder->match_name;
uniq = builder->uniq;
if (builder->bus)
bus = fixed_bus;
else
bus = all_busses;
while (*bus != WBUSTYPE_UNKNOWN) {
/* Uniq (where it exists) is more reliable than the name which may be re-used
* across tablets. So try to find a uniq+name match first, then uniq-only, then
* name-only.
*/
struct match_approach {
const char *name;
const char *uniq;
} approaches[] = {
{ name, uniq },
{ NULL, uniq },
{ name, NULL },
{ NULL, NULL },
};
struct match_approach *approach = approaches;
while (true) {
const char *match_name = approach->name;
const char *match_uniq = approach->uniq;
device = libwacom_new (db, match_name, match_uniq, vendor_id, product_id, *bus, error);
if (device) {
used_match_name = match_name;
used_match_uniq = match_uniq;
break;
}
if (approach->name == NULL && approach->uniq == NULL)
break;
approach++;
}
if (device)
break;
bus++;
}
ret = fallback_or_device(db, device, builder->device_name, fallback);
if (ret) {
/* for multiple-match devices, set to the one we requested */
used_match = libwacom_match_new(used_match_name, used_match_uniq, *bus, vendor_id, product_id);
libwacom_set_default_match(ret, used_match);
libwacom_match_unref(used_match);
}
}
if (ret == NULL)
libwacom_error_set(error, WERROR_UNKNOWN_MODEL, "unknown model");
return ret;
}
LIBWACOM_EXPORT WacomDevice*
libwacom_new_from_path(const WacomDeviceDatabase *db, const char *path, WacomFallbackFlags fallback, WacomError *error)
{
int vendor_id, product_id;
WacomBusType bus;
WacomDevice *device;
WacomIntegrationFlags integration_flags;
char *name, *uniq;
WacomBuilder *builder;
if (!path) {
libwacom_error_set(error, WERROR_INVALID_PATH, "path is NULL");
return NULL;
}
if (!get_device_info (path, &vendor_id, &product_id, &name, &uniq, &bus, &integration_flags, error))
return NULL;
builder = libwacom_builder_new();
libwacom_builder_set_match_name(builder, name);
libwacom_builder_set_bustype(builder, bus);
libwacom_builder_set_uniq(builder, uniq);
libwacom_builder_set_usbid(builder, vendor_id, product_id);
device = libwacom_new_from_builder(db, builder, fallback, error);
/* if unset, use the kernel flags. Could be unset as well. */
if (device && device->integration_flags == WACOM_DEVICE_INTEGRATED_UNSET)
device->integration_flags = integration_flags;
libwacom_builder_destroy(builder);
g_free (name);
g_free (uniq);
return device;
}
LIBWACOM_EXPORT WacomDevice*
libwacom_new_from_usbid(const WacomDeviceDatabase *db, int vendor_id, int product_id, WacomError *error)
{
WacomDevice *device;
WacomBuilder *builder = libwacom_builder_new();
libwacom_builder_set_usbid(builder, vendor_id, product_id);
device = libwacom_new_from_builder(db, builder, WFALLBACK_NONE, error);
libwacom_builder_destroy(builder);
return device;
}
LIBWACOM_EXPORT WacomDevice*
libwacom_new_from_name(const WacomDeviceDatabase *db, const char *name, WacomError *error)
{
WacomBuilder *builder = libwacom_builder_new();
WacomDevice *device;
libwacom_builder_set_device_name(builder, name);
device = libwacom_new_from_builder(db, builder, WFALLBACK_NONE, error);
libwacom_builder_destroy(builder);
return device;
}
static void print_styli_for_device (int fd, const WacomDevice *device)
{
int nstyli;
const int *styli;
int i;
unsigned idx = 0;
char buf[1024] = {0};
if (!libwacom_has_stylus(device))
return;
styli = libwacom_get_supported_styli(device, &nstyli);
for (i = 0; i < nstyli; i++) {
/* 20 digits for a stylus are enough, right */
assert(idx < sizeof(buf) - 20);
idx += snprintf(buf + idx, 20, "%#x;", styli[i]);
}
dprintf(fd, "Styli=%s\n", buf);
}
static void print_layout_for_device (int fd, const WacomDevice *device)
{
const char *layout_filename;
gchar *base_name;
layout_filename = libwacom_get_layout_filename(device);
if (layout_filename) {
base_name = g_path_get_basename (layout_filename);
dprintf(fd, "Layout=%s\n", base_name);
g_free (base_name);
}
}
static void print_supported_leds (int fd, const WacomDevice *device)
{
char *leds_name[] = {
"Ring;",
"Ring2;",
"Touchstrip;",
"Touchstrip2;"
};
int num_leds;
const WacomStatusLEDs *status_leds;
char buf[256] = {0};
bool have_led = false;
status_leds = libwacom_get_status_leds(device, &num_leds);
snprintf(buf, sizeof(buf), "%s%s%s%s",
num_leds > 0 ? leds_name[status_leds[0]] : "",
num_leds > 1 ? leds_name[status_leds[1]] : "",
num_leds > 2 ? leds_name[status_leds[2]] : "",
num_leds > 3 ? leds_name[status_leds[3]] : "");
have_led = num_leds > 0;
dprintf(fd, "%sStatusLEDs=%s\n", have_led ? "" : "# ", buf);
}
static void print_button_flag_if(int fd, const WacomDevice *device, const char *label, int flag)
{
int nbuttons = libwacom_get_num_buttons(device);
char buf[nbuttons * 2 + 1];
int idx = 0;
char b;
bool have_flag = false;
for (b = 'A'; b < 'A' + nbuttons; b++) {
if (libwacom_get_button_flag(device, b) & flag) {
buf[idx++] = b;
buf[idx++] = ';';
have_flag = true;
}
}
buf[idx] = '\0';
dprintf(fd, "%s%s=%s\n", have_flag ? "" : "# ", label, buf);
}
static void print_button_evdev_codes(int fd, const WacomDevice *device)
{
int nbuttons = libwacom_get_num_buttons(device);
char b;
char buf[1024] = {0};
unsigned idx = 0;
for (b = 'A'; b < 'A' + nbuttons; b++) {
unsigned int code = libwacom_get_button_evdev_code(device, b);
const char *str = libevdev_event_code_get_name(EV_KEY, code);
assert(idx < sizeof(buf) - 30);
if (str)
idx += snprintf(buf + idx, 30, "%s;", str);
else
idx += snprintf(buf + idx, 30, "0x%x;", code);
}
dprintf(fd, "EvdevCodes=%s\n", buf);
}
static void print_buttons_for_device (int fd, const WacomDevice *device)
{
int nbuttons = libwacom_get_num_buttons(device);
if (nbuttons == 0)
return;
dprintf(fd, "[Buttons]\n");
print_button_flag_if(fd, device, "Left", WACOM_BUTTON_POSITION_LEFT);
print_button_flag_if(fd, device, "Right", WACOM_BUTTON_POSITION_RIGHT);
print_button_flag_if(fd, device, "Top", WACOM_BUTTON_POSITION_TOP);
print_button_flag_if(fd, device, "Bottom", WACOM_BUTTON_POSITION_BOTTOM);
print_button_flag_if(fd, device, "Touchstrip", WACOM_BUTTON_TOUCHSTRIP_MODESWITCH);
print_button_flag_if(fd, device, "Touchstrip2", WACOM_BUTTON_TOUCHSTRIP2_MODESWITCH);
print_button_flag_if(fd, device, "Dial", WACOM_BUTTON_DIAL_MODESWITCH);
print_button_flag_if(fd, device, "OLEDs", WACOM_BUTTON_OLED);
print_button_flag_if(fd, device, "Ring", WACOM_BUTTON_RING_MODESWITCH);
print_button_flag_if(fd, device, "Ring2", WACOM_BUTTON_RING2_MODESWITCH);
print_button_flag_if(fd, device, "Dial", WACOM_BUTTON_DIAL_MODESWITCH);
print_button_flag_if(fd, device, "Dial2", WACOM_BUTTON_DIAL2_MODESWITCH);
print_button_evdev_codes(fd, device);
dprintf(fd, "RingNumModes=%d\n", libwacom_get_ring_num_modes(device));
dprintf(fd, "Ring2NumModes=%d\n", libwacom_get_ring2_num_modes(device));
dprintf(fd, "StripsNumModes=%d\n", libwacom_get_strips_num_modes(device));
dprintf(fd, "DialNumModes=%d\n", libwacom_get_dial_num_modes(device));
dprintf(fd, "Dial2NumModes=%d\n", libwacom_get_dial2_num_modes(device));
dprintf(fd, "\n");
}
static void print_integrated_flags_for_device (int fd, const WacomDevice *device)
{
/*
* If flag is WACOM_DEVICE_INTEGRATED_UNSET, the info is not provided
* by the tablet database but deduced otherwise (e.g. from sysfs device
* properties on Linux)
*/