This patch fragment includes commands for reading and writing parallel
I/O ports (pario command).
Signed-off-by: David Saada <[EMAIL PROTECTED]>
common/cmd_pario.c | 85
+++++++++++++++++++++++++++++++++++++++++++++++++++
common/Makefile | 1
2 files changed, 86 insertions(+)
create mode 100644 common/cmd_pario.c
--- a/common/Makefile 2008-03-28 01:49:12.000000000 +0200
+++ b/common/Makefile 2008-03-30 15:59:57.944754000 +0300
@@ -81,6 +81,7 @@ COBJS-$(CONFIG_CMD_NET) += cmd_net.o
COBJS-y += cmd_nvedit.o
COBJS-y += cmd_onenand.o
COBJS-$(CONFIG_CMD_OTP) += cmd_otp.o
+COBJS-$(CONFIG_CMD_PARIO) += cmd_pario.o
ifdef CONFIG_PCI
COBJS-$(CONFIG_CMD_PCI) += cmd_pci.o
endif
0a1,85
--- /dev/null 2008-03-30 10:13:32.378222985 +0300
+++ b/common/cmd_pario.c 2008-03-30 16:00:43.124433000 +0300
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2008 ECI Telecommunication.
+ *
+ * (C) Copyright 2008 David Saada <[EMAIL PROTECTED]>
+ *
+ * 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 <ioports.h>
+
+int do_pario (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+ char op;
+ int port, pin, data;
+ static char last_op;
+ static int last_port, last_pin, last_data;
+
+ /*
+ * We use the last specified parameters, unless new ones are
+ * entered.
+ */
+ op = last_op;
+ port = last_port;
+ pin = last_pin;
+ data = last_data;
+
+ if ((flag & CMD_FLAG_REPEAT) == 0) {
+ op = argv[1][0];
+
+ if (argc >= 3)
+ port = simple_strtoul (argv[2], NULL, 10);
+ if (argc >= 4)
+ pin = simple_strtoul (argv[3], NULL, 10);
+ if (argc >= 5)
+ data = simple_strtoul (argv[4], NULL, 10);
+ }
+
+ if (op == 'r') {
+ qe_read_iopin(port ,pin ,&data);
+ printf("%d\n", data);
+ } else if (op == 'w') {
+ qe_write_iopin(port ,pin ,data);
+ } else {
+ printf("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+
+ /*
+ * Save the parameters for repeats.
+ */
+ last_op = op;
+ last_port = port;
+ last_pin = pin;
+ last_data = data;
+
+ return 0;
+}
+
+/***************************************************/
+
+U_BOOT_CMD(
+ pario, 5, 1, do_pario,
+ "pario - Parallel I/O utility commands\n",
+ "read <port> <pin> - read from port <port> pin <pin>\n"
+ "pario write <port> <pin> <data> - write to port <port> pin
<pin>\n"
+);
+
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