[U-Boot] [PATCH 3/3] digsy MTC: Add 'mtc' command.
Grzegorz Bernacki
gjb at semihalf.com
Wed May 27 11:22:59 CEST 2009
New command allows to:
o check FW version
o set LED status
o set digital output status
o get digital input status
Signed-off-by: Grzegorz Bernacki <gjb at semihalf.com>
---
board/digsy_mtc/Makefile | 2 +-
board/digsy_mtc/cmd_mtc.c | 287 +++++++++++++++++++++++++++++++++++++++++++++
board/digsy_mtc/cmd_mtc.h | 60 ++++++++++
3 files changed, 348 insertions(+), 1 deletions(-)
create mode 100644 board/digsy_mtc/cmd_mtc.c
create mode 100644 board/digsy_mtc/cmd_mtc.h
diff --git a/board/digsy_mtc/Makefile b/board/digsy_mtc/Makefile
index 7d659e5..0bededc 100644
--- a/board/digsy_mtc/Makefile
+++ b/board/digsy_mtc/Makefile
@@ -7,7 +7,7 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).a
-COBJS := $(BOARD).o
+COBJS := $(BOARD).o cmd_mtc.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
diff --git a/board/digsy_mtc/cmd_mtc.c b/board/digsy_mtc/cmd_mtc.c
new file mode 100644
index 0000000..c05d5da
--- /dev/null
+++ b/board/digsy_mtc/cmd_mtc.c
@@ -0,0 +1,287 @@
+/*
+ * (C) Copyright 2009
+ * Werner Pfister <Pfister_Werner at intercontrol.de>
+ *
+ * (C) Copyright 2009 Semihalf, Grzegorz Bernacki
+ *
+ * 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 <mpc5xxx.h>
+#include "spi.h"
+#include "cmd_mtc.h"
+
+static const char *led_names[] = {
+ "diag",
+ "can1",
+ "can2",
+ "can3",
+ "can4",
+ "usbpwr",
+ "usbbusy",
+ "user1",
+ "user2",
+ ""
+};
+
+static void mtc_calculate_checksum(tx_msp_cmd *packet)
+{
+ int i;
+ uchar *buff;
+
+ buff = (uchar *) packet;
+
+ for (i = 0; i < 6; i++)
+ packet->cks += buff[i];
+}
+
+static int subcmd_led(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ tx_msp_cmd pcmd;
+ rx_msp_cmd prx;
+ int err = 0;
+ int i;
+
+ if (argc <= 2) {
+ printf("Usage:\n%s\n", cmdtp->help);
+ return -1;
+ }
+
+ memset(&pcmd, 0, sizeof(pcmd));
+ memset(&prx, 0, sizeof(prx));
+
+ pcmd.cmd = CMD_SET_LED;
+
+ pcmd.cmd_val0 = 0xff;
+ for (i = 0; strlen(led_names[i]) != 0; i++) {
+ if (strncmp(argv[2], led_names[i], strlen(led_names[i])) == 0) {
+ pcmd.cmd_val0 = i;
+ break;
+ }
+ }
+
+ if (pcmd.cmd_val0 == 0xff) {
+ printf("Usage:\n%s\n", cmdtp->help);
+ return -1;
+ }
+
+ if (argc >= 4) {
+ if (strncmp(argv[3], "red", 3) == 0)
+ pcmd.cmd_val1 = 1;
+ else if (strncmp(argv[3], "green", 5) == 0)
+ pcmd.cmd_val1 = 2;
+ else if (strncmp(argv[3], "orange", 6) == 0)
+ pcmd.cmd_val1 = 3;
+ else
+ pcmd.cmd_val1 = 0;
+ }
+
+ if (argc >= 5)
+ pcmd.cmd_val2 = simple_strtol(argv[4], NULL, 10);
+ else
+ pcmd.cmd_val2 = 0;
+
+ mtc_calculate_checksum(&pcmd);
+ err = spi_xfer(NULL, MTC_TRANSFER_SIZE, &pcmd, &prx,
+ SPI_XFER_BEGIN | SPI_XFER_END);
+
+ return err;
+}
+
+static int subcmd_key(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ tx_msp_cmd pcmd;
+ rx_msp_cmd prx;
+ int err = 0;
+
+ memset(&pcmd, 0, sizeof(pcmd));
+ memset(&prx, 0, sizeof(prx));
+
+ pcmd.cmd = CMD_GET_VIM;
+
+ mtc_calculate_checksum(&pcmd);
+ err = spi_xfer(NULL, MTC_TRANSFER_SIZE, &pcmd, &prx,
+ SPI_XFER_BEGIN | SPI_XFER_END);
+
+ if (!err) {
+ /* function returns '0' if key is pressed */
+ err = (prx.input & 0x80) ? 0 : 1;
+ }
+
+ return err;
+}
+
+static int subcmd_digout(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ tx_msp_cmd pcmd;
+ rx_msp_cmd prx;
+ int err = 0;
+ uchar channel_mask = 0;
+
+ if (argc < 4) {
+ printf("Usage:\n%s\n", cmdtp->help);
+ return -1;
+ }
+
+ if (strncmp(argv[2], "on", 2) == 0)
+ channel_mask |= 1;
+ if (strncmp(argv[3], "on", 2) == 0)
+ channel_mask |= 2;
+
+ memset(&pcmd, 0, sizeof(pcmd));
+ memset(&prx, 0, sizeof(prx));
+
+ pcmd.cmd = CMD_GET_VIM;
+ pcmd.user_out = channel_mask;
+
+ mtc_calculate_checksum(&pcmd);
+ err = spi_xfer(NULL, MTC_TRANSFER_SIZE, &pcmd, &prx,
+ SPI_XFER_BEGIN | SPI_XFER_END);
+
+ return err;
+}
+
+static int subcmd_digin(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ tx_msp_cmd pcmd;
+ rx_msp_cmd prx;
+ int err = 0;
+ uchar channel_num = 0;
+
+ if (argc < 3) {
+ printf("Usage:\n%s\n", cmdtp->help);
+ return -1;
+ }
+
+ channel_num = simple_strtol(argv[2], NULL, 10);
+ if ((channel_num != 1) && (channel_num != 2)) {
+ printf("invalid parameter\n");
+ return -1;
+ }
+
+ memset(&pcmd, 0, sizeof(pcmd));
+ memset(&prx, 0, sizeof(prx));
+
+ pcmd.cmd = CMD_GET_VIM;
+
+ mtc_calculate_checksum(&pcmd);
+ err = spi_xfer(NULL, MTC_TRANSFER_SIZE, &pcmd, &prx,
+ SPI_XFER_BEGIN | SPI_XFER_END);
+
+ if (!err) {
+ /* function returns '0' when digin is on */
+ err = (prx.input & channel_num) ? 0 : 1;
+ }
+
+ return err;
+}
+
+static int subcmd_appreg(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ tx_msp_cmd pcmd;
+ rx_msp_cmd prx;
+ int err;
+ char buf[5];
+
+ /* read appreg */
+ memset(&pcmd, 0, sizeof(pcmd));
+ memset(&prx, 0, sizeof(prx));
+
+ pcmd.cmd = CMD_WD_PARA;
+ pcmd.cmd_val0 = 5; /* max. Count */
+ pcmd.cmd_val1 = 5; /* max. Time */
+ pcmd.cmd_val2 = 0; /* =0 means read appreg */
+
+ mtc_calculate_checksum(&pcmd);
+ err = spi_xfer(NULL, MTC_TRANSFER_SIZE, &pcmd, &prx,
+ SPI_XFER_BEGIN | SPI_XFER_END);
+ if (!err) {
+ sprintf(buf, "%d", prx.ack2);
+ setenv("appreg", buf);
+ }
+
+ return err;
+}
+
+static int subcmd_version(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ tx_msp_cmd pcmd;
+ rx_msp_cmd prx;
+ int err = 0;
+
+ memset(&pcmd, 0, sizeof(pcmd));
+ memset(&prx, 0, sizeof(prx));
+
+ pcmd.cmd = CMD_FW_VERSION;
+
+ mtc_calculate_checksum(&pcmd);
+ err = spi_xfer(NULL, MTC_TRANSFER_SIZE, &pcmd, &prx,
+ SPI_XFER_BEGIN | SPI_XFER_END);
+
+ if (!err) {
+ printf("FW V%d.%d.%d / HW %d\n",
+ prx.ack0, prx.ack1, prx.ack3, prx.ack2);
+ }
+
+ return err;
+}
+
+int cmd_mtc(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ int err = 0;
+
+ if (argc > 1) {
+ if (strncmp(argv[1], "led", 3) == 0)
+ err = subcmd_led(cmdtp, flag, argc, argv);
+ else if (strncmp(argv[1], "key", 3) == 0)
+ err = subcmd_key(cmdtp, flag, argc, argv);
+ else if (strncmp(argv[1], "version", 7) == 0)
+ err = subcmd_version(cmdtp, flag, argc, argv);
+ else if (strncmp(argv[1], "appreg", 6) == 0)
+ err = subcmd_appreg(cmdtp, flag, argc, argv);
+ else if (strncmp(argv[1], "digin", 5) == 0)
+ err = subcmd_digin(cmdtp, flag, argc, argv);
+ else if (strncmp(argv[1], "digout", 6) == 0)
+ err = subcmd_digout(cmdtp, flag, argc, argv);
+ else {
+ printf("Usage:\n%s\n", cmdtp->help);
+ err = 1;
+ }
+ } else {
+ printf("Usage:\n%s\n", cmdtp->help);
+ err = 1;
+ }
+
+ return err;
+}
+
+U_BOOT_CMD(mtc, 5, 1, cmd_mtc,
+ "mtc - special commands for digsyMTC\n",
+ "mtc led [ledname] [state] [blink] - set state of leds\n"
+ " - lednames: diag can1 can2 can3 can4 usbpwr usbbusy user1 user2\n"
+ " - state: off red green orange\n"
+ " - blink: blink interval in 100ms steps (1 - 10; 0 = static)\n"
+ "mtc key - returns state of user key\n"
+ "mtc version - returns firmware version of supervisor uC\n"
+ "mtc appreg - reads appreg value and stores in environment variable"
+ "'appreg'\n"
+ "mtc digin channel - returns state of digital input (1 or 2)\n"
+ "mtc digout ch1 ch2 - sets digital outputs ('on' or 'off')\n");
diff --git a/board/digsy_mtc/cmd_mtc.h b/board/digsy_mtc/cmd_mtc.h
new file mode 100644
index 0000000..db3aeed
--- /dev/null
+++ b/board/digsy_mtc/cmd_mtc.h
@@ -0,0 +1,60 @@
+/*
+ * (C) Copyright 2009
+ * Werner Pfister <Pfister_Werner at intercontrol.de>
+ *
+ * (C) Copyright 2009 Semihalf, Grzegorz Bernacki
+ *
+ * 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
+ */
+
+#ifndef CMD_MTC_H
+#define CMD_MTC_H
+
+#define CMD_WD_PARA 0x02
+#define CMD_FW_VERSION 0x10
+#define CMD_GET_VIM 0x30
+#define CMD_SET_LED 0x40
+
+typedef struct {
+ u8 cmd;
+ u8 sys_in;
+ u8 cmd_val0;
+ u8 cmd_val1;
+ u8 cmd_val2;
+ u8 user_out;
+ u8 cks;
+ u8 dummy1;
+ u8 dummy2;
+} tx_msp_cmd;
+
+typedef struct {
+ u8 input;
+ u8 state;
+ u8 ack2;
+ u8 ack3;
+ u8 ack0;
+ u8 ack1;
+ u8 ack;
+ u8 dummy;
+ u8 cks;
+} rx_msp_cmd;
+
+#define MTC_TRANSFER_SIZE (sizeof(tx_msp_cmd) * 8)
+
+#endif
--
1.6.0.6
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