libaltos: Add Windows BT support. Split into separate source files.

[fw/altos] / libaltos / libaltos_common.c

diff --git a/libaltos/libaltos_common.c b/libaltos/libaltos_common.c
new file mode 100644 (file)
index 0000000..090f03a
--- /dev/null
+++ b/libaltos/libaltos_common.c
@@ -0,0 +1,83 @@
+/*
+ * Copyright © 2016 Keith Packard <keithp@keithp.com>
+ *
+ * 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
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#include "libaltos_private.h"
+
+PUBLIC int
+altos_init(void)
+{
+       return LIBALTOS_SUCCESS;
+}
+
+PUBLIC void
+altos_fini(void)
+{
+}
+
+struct altos_error altos_last_error;
+
+void
+altos_set_last_error(int code, char *string)
+{
+       altos_last_error.code = code;
+       strncpy(altos_last_error.string, string, sizeof (altos_last_error.string) -1);
+       altos_last_error.string[sizeof(altos_last_error.string)-1] = '\0';
+}
+
+PUBLIC void
+altos_get_last_error(struct altos_error *error)
+{
+       *error = altos_last_error;
+}
+
+PUBLIC int
+altos_getchar(struct altos_file *file, int timeout)
+{
+       int     ret;
+       while (file->in_read == file->in_used) {
+               ret = altos_fill(file, timeout);
+               if (ret)
+                       return ret;
+       }
+       return file->in_data[file->in_read++];
+}
+
+PUBLIC int
+altos_putchar(struct altos_file *file, char c)
+{
+       int     ret;
+
+       if (file->out_used == USB_BUF_SIZE) {
+               ret = altos_flush(file);
+               if (ret) {
+                       return ret;
+               }
+       }
+       file->out_data[file->out_used++] = c;
+       ret = 0;
+       if (file->out_used == USB_BUF_SIZE)
+               ret = altos_flush(file);
+       return ret;
+}
+
+
+PUBLIC void
+altos_free(struct altos_file *file)
+{
+       altos_close(file);
+       free(file);
+}