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authorNick Hibma <n_hibma@FreeBSD.org>2000-06-11 18:19:14 +0000
committerNick Hibma <n_hibma@FreeBSD.org>2000-06-11 18:19:14 +0000
commit9e2046dfecbbdda2ba5060c92f583d78cca04bcb (patch)
tree2c6d051214d9edddf0fe26ef132c3cd4ee5f6578 /lib/libusbhid/usage.c
parent7c381eb7d5ec83cec09f600f0ddcb0bf905e682d (diff)
downloadsrc-9e2046dfecbbdda2ba5060c92f583d78cca04bcb.tar.gz
src-9e2046dfecbbdda2ba5060c92f583d78cca04bcb.zip
The USB library from NetBSD by Lennart Augustsson <lennart@augustsson.net>.
Notes
Notes: svn path=/head/; revision=61560
Diffstat (limited to 'lib/libusbhid/usage.c')
-rw-r--r--lib/libusbhid/usage.c197
1 files changed, 197 insertions, 0 deletions
diff --git a/lib/libusbhid/usage.c b/lib/libusbhid/usage.c
new file mode 100644
index 000000000000..afb990a93ccd
--- /dev/null
+++ b/lib/libusbhid/usage.c
@@ -0,0 +1,197 @@
+/* $NetBSD: usage.c,v 1.5 2000/04/02 11:10:53 augustss Exp $ */
+
+/*
+ * Copyright (c) 1999 Lennart Augustsson <augustss@netbsd.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ *
+ */
+
+#include <ctype.h>
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "libusb.h"
+
+#define _PATH_HIDTABLE "/usr/share/misc/usb_hid_usages"
+
+struct usage_in_page {
+ const char *name;
+ int usage;
+};
+
+static struct usage_page {
+ const char *name;
+ int usage;
+ struct usage_in_page *page_contents;
+ int pagesize, pagesizemax;
+} *pages;
+static int npages, npagesmax;
+
+#ifdef DEBUG
+void
+dump_hid_table(void)
+{
+ int i, j;
+
+ for (i = 0; i < npages; i++) {
+ printf("%d\t%s\n", pages[i].usage, pages[i].name);
+ for (j = 0; j < pages[i].pagesize; j++) {
+ printf("\t%d\t%s\n", pages[i].page_contents[j].usage,
+ pages[i].page_contents[j].name);
+ }
+ }
+}
+#endif
+
+void
+hid_init(const char *hidname)
+{
+ FILE *f;
+ char line[100], name[100], *p, *n;
+ int no;
+ int lineno;
+ struct usage_page *curpage = 0;
+
+ if (hidname == 0)
+ hidname = _PATH_HIDTABLE;
+
+ f = fopen(hidname, "r");
+ if (f == NULL)
+ err(1, "%s", hidname);
+ for (lineno = 1; ; lineno++) {
+ if (fgets(line, sizeof line, f) == NULL)
+ break;
+ if (line[0] == '#')
+ continue;
+ for (p = line; *p && isspace(*p); p++)
+ ;
+ if (!*p)
+ continue;
+ if (sscanf(line, " * %[^\n]", name) == 1)
+ no = -1;
+ else if (sscanf(line, " 0x%x %[^\n]", &no, name) != 2 &&
+ sscanf(line, " %d %[^\n]", &no, name) != 2)
+ errx(1, "file %s, line %d, syntax error\n",
+ hidname, lineno);
+ for (p = name; *p; p++)
+ if (isspace(*p) || *p == '.')
+ *p = '_';
+ n = strdup(name);
+ if (!n)
+ err(1, "strdup");
+ if (isspace(line[0])) {
+ if (!curpage)
+ errx(1, "file %s, line %d, syntax error\n",
+ hidname, lineno);
+ if (curpage->pagesize >= curpage->pagesizemax) {
+ curpage->pagesizemax += 10;
+ curpage->page_contents =
+ realloc(curpage->page_contents,
+ curpage->pagesizemax *
+ sizeof (struct usage_in_page));
+ if (!curpage->page_contents)
+ err(1, "realloc");
+ }
+ curpage->page_contents[curpage->pagesize].name = n;
+ curpage->page_contents[curpage->pagesize].usage = no;
+ curpage->pagesize++;
+ } else {
+ if (npages >= npagesmax) {
+ if (pages == 0) {
+ npagesmax = 5;
+ pages = malloc(npagesmax *
+ sizeof (struct usage_page));
+ } else {
+ npagesmax += 5;
+ pages = realloc(pages,
+ npagesmax *
+ sizeof (struct usage_page));
+ }
+ if (!pages)
+ err(1, "alloc");
+ }
+ curpage = &pages[npages++];
+ curpage->name = n;
+ curpage->usage = no;
+ curpage->pagesize = 0;
+ curpage->pagesizemax = 10;
+ curpage->page_contents =
+ malloc(curpage->pagesizemax *
+ sizeof (struct usage_in_page));
+ if (!curpage->page_contents)
+ err(1, "malloc");
+ }
+ }
+ fclose(f);
+#ifdef DEBUG
+ dump_hid_table();
+#endif
+}
+
+const char *
+hid_usage_page(int i)
+{
+ static char b[10];
+ int k;
+
+ if (!pages)
+ errx(1, "no hid table\n");
+
+ for (k = 0; k < npages; k++)
+ if (pages[k].usage == i)
+ return pages[k].name;
+ sprintf(b, "0x%02x", i);
+ return b;
+}
+
+const char *
+hid_usage_in_page(unsigned int u)
+{
+ int page = HID_PAGE(u);
+ int i = HID_USAGE(u);
+ static char b[100];
+ int j, k, us;
+
+ for (k = 0; k < npages; k++)
+ if (pages[k].usage == page)
+ break;
+ if (k >= npages)
+ goto bad;
+ for (j = 0; j < pages[k].pagesize; j++) {
+ us = pages[k].page_contents[j].usage;
+ if (us == -1) {
+ sprintf(b, pages[k].page_contents[j].name, i);
+ return b;
+ }
+ if (us == i)
+ return pages[k].page_contents[j].name;
+ }
+ bad:
+ sprintf(b, "0x%02x", i);
+ return b;
+}