[U-Boot] [PATCH v3 3/4] digsy MTC: Add 'mtc' command.
Grzegorz Bernacki
gjb at semihalf.com
Fri Jun 12 11:33:54 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>
---
v2:
- implement sub-commands via U_BOOT_CMD_MKENT macro
board/digsy_mtc/Makefile | 2 +-
board/digsy_mtc/cmd_mtc.c | 350 +++++++++++++++++++++++++++++++++++++++++++
board/digsy_mtc/cmd_mtc.h | 60 ++++++++
board/digsy_mtc/digsy_mtc.c | 2 +
4 files changed, 413 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..9e377cd
--- /dev/null
+++ b/board/digsy_mtc/cmd_mtc.c
@@ -0,0 +1,350 @@
+/*
+ * (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"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+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 do_mtc_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) {
+ cmd_usage(cmdtp);
+ 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[1], 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 >= 3) {
+ if (strncmp(argv[2], "red", 3) == 0)
+ pcmd.cmd_val1 = 1;
+ else if (strncmp(argv[2], "green", 5) == 0)
+ pcmd.cmd_val1 = 2;
+ else if (strncmp(argv[2], "orange", 6) == 0)
+ pcmd.cmd_val1 = 3;
+ else
+ pcmd.cmd_val1 = 0;
+ }
+
+ if (argc >= 4)
+ pcmd.cmd_val2 = simple_strtol(argv[3], 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 do_mtc_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 do_mtc_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 < 3) {
+ cmd_usage(cmdtp);
+ return -1;
+ }
+
+ if (strncmp(argv[1], "on", 2) == 0)
+ channel_mask |= 1;
+ if (strncmp(argv[2], "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 do_mtc_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 < 2) {
+ cmd_usage(cmdtp);
+ return -1;
+ }
+
+ channel_num = simple_strtol(argv[1], NULL, 10);
+ if ((channel_num != 1) && (channel_num != 2)) {
+ printf("mtc digin: invalid parameter - must be '1' or '2'\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 do_mtc_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 do_mtc_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;
+}
+
+static int do_mtc_help(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+
+cmd_tbl_t cmd_mtc_sub[] = {
+ U_BOOT_CMD_MKENT(led, 3, 1, do_mtc_led,
+ "set state of leds",
+ "[ledname] [state] [blink]\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"),
+ U_BOOT_CMD_MKENT(key, 0, 1, do_mtc_key,
+ "returns state of user key\n", ""),
+ U_BOOT_CMD_MKENT(version, 0, 1, do_mtc_version,
+ "returns firmware version of supervisor uC\n", ""),
+ U_BOOT_CMD_MKENT(appreg, 0, 1, do_mtc_appreg,
+ "reads appreg value and stores in environment variable 'appreg'\n", ""),
+ U_BOOT_CMD_MKENT(digin, 1, 1, do_mtc_digin,
+ "returns state of digital input",
+ "<channel_num> - get state of digital input (1 or 2)\n"),
+ U_BOOT_CMD_MKENT(digout, 2, 1, do_mtc_digout,
+ "sets digital outputs",
+ "<on|off> <on|off>- set state of digital output 1 and 2\n"),
+ U_BOOT_CMD_MKENT(help, 4, 1, do_mtc_help, "get help",
+ "[command] - get help for command\n"),
+};
+
+static int do_mtc_help(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ extern int _do_help(cmd_tbl_t *cmd_start, int cmd_items,
+ cmd_tbl_t *cmdtp, int flag,
+ int argc, char *argv[]);
+#ifdef CONFIG_SYS_LONGHELP
+ puts("mtc ");
+#endif
+ return _do_help(&cmd_mtc_sub[0],
+ ARRAY_SIZE(cmd_mtc_sub), cmdtp, flag, argc, argv);
+}
+
+/* Relocate the command table function pointers when running in RAM */
+int mtc_cmd_init_r(void)
+{
+ cmd_tbl_t *cmdtp;
+
+ for (cmdtp = &cmd_mtc_sub[0]; cmdtp !=
+ &cmd_mtc_sub[ARRAY_SIZE(cmd_mtc_sub)]; cmdtp++) {
+ ulong addr;
+
+ addr = (ulong)(cmdtp->cmd) + gd->reloc_off;
+ cmdtp->cmd =
+ (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
+
+ addr = (ulong)(cmdtp->name) + gd->reloc_off;
+ cmdtp->name = (char *)addr;
+
+ if (cmdtp->usage) {
+ addr = (ulong)(cmdtp->usage) + gd->reloc_off;
+ cmdtp->usage = (char *)addr;
+ }
+#ifdef CONFIG_SYS_LONGHELP
+ if (cmdtp->help) {
+ addr = (ulong)(cmdtp->help) + gd->reloc_off;
+ cmdtp->help = (char *)addr;
+ }
+#endif
+ }
+ return 0;
+}
+
+int cmd_mtc(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ cmd_tbl_t *c;
+ int err = 0;
+
+ c = find_cmd_tbl(argv[1], &cmd_mtc_sub[0], ARRAY_SIZE(cmd_mtc_sub));
+ if (c) {
+ argc--;
+ argv++;
+ return c->cmd(c, flag, argc, argv);
+ } else {
+ /* Unrecognized command */
+ cmd_usage(cmdtp);
+ return 1;
+ }
+
+ return err;
+}
+
+U_BOOT_CMD(mtc, 5, 1, cmd_mtc,
+ "mtc - special commands for digsyMTC\n",
+ "[subcommand] [args...]\n"
+ "Subcommands list:\n"
+ "led [ledname] [state] [blink] - set state of leds\n"
+ " [ledname]: 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"
+ "key - returns state of user key\n"
+ "version - returns firmware version of supervisor uC\n"
+ "appreg - reads appreg value and stores in environment variable"
+ " 'appreg'\n"
+ "digin [channel] - returns state of digital input (1 or 2)\n"
+ "digout <on|off> <on|off> - sets state of two digital outputs\n"
+ "help [subcommand] - get help for subcommand\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
diff --git a/board/digsy_mtc/digsy_mtc.c b/board/digsy_mtc/digsy_mtc.c
index cc6087b..9d77e54 100644
--- a/board/digsy_mtc/digsy_mtc.c
+++ b/board/digsy_mtc/digsy_mtc.c
@@ -240,6 +240,7 @@ void board_get_enetaddr (uchar * enet)
int misc_init_r(void)
{
+ extern int mtc_cmd_init_r (void);
uchar enetaddr[6];
if (!eth_getenv_enetaddr("ethaddr", enetaddr)) {
@@ -247,6 +248,7 @@ int misc_init_r(void)
eth_setenv_enetaddr("ethaddr", enetaddr);
}
+ mtc_cmd_init_r();
return 0;
}
--
1.6.0.6
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