summaryrefslogtreecommitdiff
path: root/include/circbuf.h
diff options
context:
space:
mode:
authorwdenk <wdenk>2004-03-12 00:14:09 +0000
committerwdenk <wdenk>2004-03-12 00:14:09 +0000
commit232c150a250bb2fcb894b15d67c65df2458e271f (patch)
tree3d714bb0eb041a6499b8e2286a7fedb6fc150847 /include/circbuf.h
parent79d696fc558b2bcdb8aa8dc6cd7e4ccd22008e21 (diff)
downloadu-boot-imx-232c150a250bb2fcb894b15d67c65df2458e271f.zip
u-boot-imx-232c150a250bb2fcb894b15d67c65df2458e271f.tar.gz
u-boot-imx-232c150a250bb2fcb894b15d67c65df2458e271f.tar.bz2
Add support for Siemens SX1 mobile phone;
add support for USB-based console (enable with "setenv stdout usbtty; setenv stdin usbtty")
Diffstat (limited to 'include/circbuf.h')
-rw-r--r--include/circbuf.h40
1 files changed, 40 insertions, 0 deletions
diff --git a/include/circbuf.h b/include/circbuf.h
new file mode 100644
index 0000000..e10ed95
--- /dev/null
+++ b/include/circbuf.h
@@ -0,0 +1,40 @@
+/*
+ * (C) Copyright 2003
+ * Gerry Hamel, geh@ti.com, Texas Instruments
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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
+ *
+ */
+
+#ifndef __CIRCBUF_H__
+#define __CIRCBUF_H__
+
+typedef struct circbuf {
+ unsigned int size; /* current number of bytes held */
+ unsigned int totalsize; /* number of bytes allocated */
+
+ char *top; /* pointer to current buffer start */
+ char *tail; /* pointer to space for next element */
+
+ char *data; /* all data */
+ char *end; /* end of data buffer */
+} circbuf_t;
+
+int buf_init (circbuf_t * buf, unsigned int size);
+int buf_free (circbuf_t * buf);
+int buf_pop (circbuf_t * buf, char *dest, unsigned int len);
+int buf_push (circbuf_t * buf, const char *src, unsigned int len);
+
+#endif