[U-Boot] [PATCH v3 3/4] New command clear: Clear the ANSI terminal

Pali Rohár
2013-02-01T15:07:57Z

This patch adding new simple command clear which clear ANSI terminal.

Signed-off-by: Pali Roh?r <pali.rohar@gmail.com>
Cc: Marcel Mol <marcel@mesa.nl>
---
No changes in v3

This patch was in Nokia RX-51 patch series (v2).

Changes since RX-51 patch v2:
- Removed from include/config_cmd_all.h
- Removed ANSI escape codes (now in BootMenu command patch)

Changes since original version:
- Renamed command clr to clear
- Use puts instead printf
- Move cursor to pos1,1

common/Makefile | 1 +
common/cmd_clear.c | 43 +++++++++++++++++++++++++++++++++++++++++++
2 files changed, 44 insertions(+)
create mode 100644 common/cmd_clear.c

diff --git a/common/Makefile b/common/Makefile
index 0bd82a9..4a0519b 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -76,6 +76,7 @@ COBJS-$(CONFIG_CMD_BOOTLDR) += cmd_bootldr.o
COBJS-$(CONFIG_CMD_BOOTSTAGE) += cmd_bootstage.o
COBJS-$(CONFIG_CMD_CACHE) += cmd_cache.o
COBJS-$(CONFIG_CMD_CBFS) += cmd_cbfs.o
+COBJS-$(CONFIG_CMD_CLEAR) += cmd_clear.o
COBJS-$(CONFIG_CMD_CONSOLE) += cmd_console.o
COBJS-$(CONFIG_CMD_CPLBINFO) += cmd_cplbinfo.o
COBJS-$(CONFIG_DATAFLASH_MMC_SELECT) += cmd_dataflash_mmc_mux.o
diff --git a/common/cmd_clear.c b/common/cmd_clear.c
new file mode 100644
index 0000000..29b4718
--- /dev/null
+++ b/common/cmd_clear.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2011
+ * Marcel Mol, MESA Consulting, marcel at mesa.nl
+ *
+ * Copyright 2011
+ * Pali Roh?r, pali.rohar at gmail.com
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+
+#include <common.h>
+#include <command.h>
+#include <ansi.h>
+
+static int do_clear(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ puts(ANSI_CLEAR_CONSOLE);
+ printf(ANSI_CURSOR_POSITION, 1, 1);
+ return 0;
+}
+
+U_BOOT_CMD(
+ clear, CONFIG_SYS_MAXARGS, 1, do_clear,
+ "clear",
+ "\n"
+ " - clear screen and move cursor to top of screen"
+);
--
1.7.10.4