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Today's Topics:
1. r4135 - in developers/sean_chiang: . gsm-pm
([EMAIL PROTECTED])
2. Re:r4135 - in developers/sean_chiang: . gsm-pm
(Werner Almesberger)
3. r4136 - developers/sean_chiang/gsm-pm
([EMAIL PROTECTED])
4. r4137 - developers/sean_chiang/gsm-pm
([EMAIL PROTECTED])
--- Begin Message ---
Author: sean_chiang
Date: 2008-02-29 05:12:52 +0100 (Fri, 29 Feb 2008)
New Revision: 4135
Added:
developers/sean_chiang/gsm-pm/
developers/sean_chiang/gsm-pm/Makefile
developers/sean_chiang/gsm-pm/gsm-pm.c
Log:
A wrapper for power control of GSM modem
Added: developers/sean_chiang/gsm-pm/Makefile
===================================================================
--- developers/sean_chiang/gsm-pm/Makefile 2008-02-29 03:14:45 UTC (rev
4134)
+++ developers/sean_chiang/gsm-pm/Makefile 2008-02-29 04:12:52 UTC (rev
4135)
@@ -0,0 +1,5 @@
+CC=arm-angstrom-linux-gnueabi-gcc
+all:
+ $(CC) -o gsm-pm gsm-pm.c
+clean:
+ rm gsm-pm
Added: developers/sean_chiang/gsm-pm/gsm-pm.c
===================================================================
--- developers/sean_chiang/gsm-pm/gsm-pm.c 2008-02-29 03:14:45 UTC (rev
4134)
+++ developers/sean_chiang/gsm-pm/gsm-pm.c 2008-02-29 04:12:52 UTC (rev
4135)
@@ -0,0 +1,169 @@
+/* gsm-pm
+ *
+ * (C) 2006-2007 by OpenMoko, Inc.
+ * Written by Sean Chiang <[EMAIL PROTECTED]>
+ * All Rights Reserved
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <termios.h>
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+struct bdrt {
+ int bps;
+ u_int32_t b;
+};
+
+static struct bdrt bdrts[] = {
+ { 0, B0 },
+ { 9600, B9600 },
+ { 19200, B19200 },
+ { 38400, B38400 },
+ { 57600, B57600 },
+ { 115200, B115200 },
+ { 230400, B230400 },
+ { 460800, B460800 },
+ { 921600, B921600 },
+};
+
+static int set_baudrate(int fd, int baudrate, int hwflow)
+{
+ int i;
+ u_int32_t bd = 0;
+ struct termios ti;
+
+ for (i = 0; i < ARRAY_SIZE(bdrts); i++) {
+ if (bdrts[i].bps == baudrate)
+ bd = bdrts[i].b;
+ }
+ if (bd == 0) {
+ printf("can't set Baud rate\n");
+ exit(1);
+ }
+
+ i = tcgetattr(fd, &ti);
+ if (i < 0) {
+ printf("can't get attr\n");
+ exit(1);
+ }
+
+ i = cfsetispeed(&ti, B0);
+ if (i < 0) {
+ printf("can't set input baud rate to B0\n");
+ exit(1);
+ }
+
+ i = cfsetospeed(&ti, bd);
+ if (i < 0) {
+ printf("can't set output baud rate");
+ exit(1);
+ }
+
+ if (hwflow)
+ ti.c_cflag |= CRTSCTS;
+ else
+ ti.c_cflag &= ~CRTSCTS;
+
+ return tcsetattr(fd, 0, &ti);
+}
+
+int main(int argc, char **argv) {
+
+ char *p_DL, *p_POW, *p_RES, *p_OPTS, *p_DEV;
+ char buf[128];
+ pid_t child;
+ int fd;
+
+ p_DL = getenv("GSM_DL");
+ p_POW = getenv("GSM_POW");
+ p_RES = getenv("GSM_RES");
+ p_OPTS = getenv("GSMD_OPTS");
+ p_DEV = getenv("GSM_DEV");
+
+ if ( p_DL ) {
+ sprintf(buf, "echo \"1\" > %s", p_DL);
+ system(buf);
+ sleep(1);
+ }
+
+ if ( p_POW ) {
+ sprintf(buf, "echo \"0\" > %s", p_POW);
+ system(buf);
+ sleep(1);
+ sprintf(buf, "echo \"1\" > %s", p_POW);
+ system(buf);
+ sleep(1);
+ }
+
+ if ( p_RES ) {
+ sprintf(buf, "echo \"1\" > %s", p_RES);
+ system(buf);
+ sleep(1);
+ sprintf(buf, "echo \"0\" > %s", p_RES);
+ system(buf);
+ sleep(2);
+ }
+
+ printf("Starting GSM daemon: \n");
+
+ if ( p_OPTS && p_DEV ) {
+
+ sprintf(buf, "start-stop-daemon -S -x /usr/sbin/gsmd -- gsmd -p
%s %s >/tmp/gsm.log 2>&1", p_DEV,p_OPTS);
+ system(buf);
+ }
+
+ {
+ wait();
+ printf("gsmd is killed\n");
+
+ // Send [EMAIL PROTECTED]
+ fd = open(p_DEV, O_RDWR);
+ if (fd < 0) {
+ printf("can't open device %s", p_DEV);
+ exit(1);
+ }
+
+ if (set_baudrate(fd, 115200, 1) < 0) {
+ printf("can't set baudrate\n");
+ exit(1);
+ }
+
+ write(fd, "AT", 2);
+ write(fd, " \r", 2);
+ write(fd,"[EMAIL PROTECTED]", 7);
+ close(fd);
+
+ sleep(1);
+
+ if ( p_POW ) {
+ sprintf(buf, "echo \"0\" > %s", p_POW);
+ system(buf);
+ }
+ }
+
+ exit(0);
+}
--- End Message ---
--- Begin Message ---
[EMAIL PROTECTED] wrote:
> A wrapper for power control of GSM modem
Ah, nice !
> + write(fd,"[EMAIL PROTECTED]", 7);
No \r at the end ?
Cheers, Werner
--- End Message ---
--- Begin Message ---
Author: sean_chiang
Date: 2008-02-29 09:41:52 +0100 (Fri, 29 Feb 2008)
New Revision: 4136
Modified:
developers/sean_chiang/gsm-pm/gsm-pm.c
Log:
drain the uart before we send [EMAIL PROTECTED]
Modified: developers/sean_chiang/gsm-pm/gsm-pm.c
===================================================================
--- developers/sean_chiang/gsm-pm/gsm-pm.c 2008-02-29 04:12:52 UTC (rev
4135)
+++ developers/sean_chiang/gsm-pm/gsm-pm.c 2008-02-29 08:41:52 UTC (rev
4136)
@@ -91,6 +91,19 @@
return tcsetattr(fd, 0, &ti);
}
+static void drain(int fd)
+{
+ int rc;
+ struct termios t;
+ rc = tcflush(fd, TCIOFLUSH);
+ rc = tcgetattr(fd, &t);
+ printf("c_iflag = 0x%08x, c_oflag = 0x%08x, c_cflag = 0x%08x, c_lflag =
0x%08x\n",
+ t.c_iflag, t.c_oflag, t.c_cflag, t.c_lflag);
+ t.c_iflag = t.c_oflag = 0;
+ cfmakeraw(&t);
+ rc = tcsetattr(fd, TCSANOW, &t);
+}
+
int main(int argc, char **argv) {
char *p_DL, *p_POW, *p_RES, *p_OPTS, *p_DEV;
@@ -151,14 +164,25 @@
printf("can't set baudrate\n");
exit(1);
}
+
+ drain(fd);
- write(fd, "AT", 2);
- write(fd, " \r", 2);
- write(fd,"[EMAIL PROTECTED]", 7);
+ if ( write(fd, "AT\r", 3) <= 0 ) {
+ printf("1 error\n");
+ exit(1);
+ }
+ if ( write(fd, "AT\r", 3) <= 0 ) {
+ printf("2 error\n");
+ exit(1);
+ }
+ if ( write(fd,"[EMAIL PROTECTED]", 8) <=0 ) {
+ printf("3 error\n");
+ exit(1);
+ }
close(fd);
+
+ sleep(1);
- sleep(1);
-
if ( p_POW ) {
sprintf(buf, "echo \"0\" > %s", p_POW);
system(buf);
--- End Message ---
--- Begin Message ---
Author: sean_chiang
Date: 2008-02-29 10:14:50 +0100 (Fri, 29 Feb 2008)
New Revision: 4137
Modified:
developers/sean_chiang/gsm-pm/gsm-pm.c
Log:
replace sprintf with snprintf
Modified: developers/sean_chiang/gsm-pm/gsm-pm.c
===================================================================
--- developers/sean_chiang/gsm-pm/gsm-pm.c 2008-02-29 08:41:52 UTC (rev
4136)
+++ developers/sean_chiang/gsm-pm/gsm-pm.c 2008-02-29 09:14:50 UTC (rev
4137)
@@ -118,25 +118,25 @@
p_DEV = getenv("GSM_DEV");
if ( p_DL ) {
- sprintf(buf, "echo \"1\" > %s", p_DL);
+ snprintf(buf, sizeof(buf), "echo \"1\" > %s", p_DL);
system(buf);
sleep(1);
}
if ( p_POW ) {
- sprintf(buf, "echo \"0\" > %s", p_POW);
+ snprintf(buf, sizeof(buf), "echo \"0\" > %s", p_POW);
system(buf);
sleep(1);
- sprintf(buf, "echo \"1\" > %s", p_POW);
+ snprintf(buf, sizeof(buf), "echo \"1\" > %s", p_POW);
system(buf);
sleep(1);
}
if ( p_RES ) {
- sprintf(buf, "echo \"1\" > %s", p_RES);
+ snprintf(buf, sizeof(buf), "echo \"1\" > %s", p_RES);
system(buf);
sleep(1);
- sprintf(buf, "echo \"0\" > %s", p_RES);
+ snprintf(buf, sizeof(buf), "echo \"0\" > %s", p_RES);
system(buf);
sleep(2);
}
@@ -145,7 +145,7 @@
if ( p_OPTS && p_DEV ) {
- sprintf(buf, "start-stop-daemon -S -x /usr/sbin/gsmd -- gsmd -p
%s %s >/tmp/gsm.log 2>&1", p_DEV,p_OPTS);
+ snprintf(buf, sizeof(buf), "start-stop-daemon -S -x
/usr/sbin/gsmd -- gsmd -p %s %s >/tmp/gsm.log 2>&1", p_DEV,p_OPTS);
system(buf);
}
@@ -166,6 +166,8 @@
}
drain(fd);
+
+ sleep(1);
if ( write(fd, "AT\r", 3) <= 0 ) {
printf("1 error\n");
@@ -184,7 +186,7 @@
sleep(1);
if ( p_POW ) {
- sprintf(buf, "echo \"0\" > %s", p_POW);
+ snprintf(buf, sizeof(buf), "echo \"0\" > %s", p_POW);
system(buf);
}
}
--- End Message ---
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