Add run-time changing of gsmd log level via libgsm/libgsmd-tool

include/gsmd/usock.h

@@ -142,6 +142,7 @@ enum gsmd_msg_phone {
 	GSMD_PHONE_VIB_ENABLE   = 9,
 	GSMD_PHONE_VIB_DISABLE  = 10,
 	GSMD_PHONE_POWER_STATUS = 11,
+	GSMD_PHONE_GSMD_LOGLEVEL= 12,
 };
 
 enum gsmd_msg_modem {

include/libgsmd/misc.h

@@ -80,4 +80,7 @@ extern int lgsm_phone_vibrator(struct lgsm_handle *lh, int enable);
 /* Get Antenna Power status */
 extern int lgsm_get_power_status(struct lgsm_handle *lh);
 
+/* Set the gsmd loglevel at runtime */
+extern int lgsm_set_gsmd_loglevel(struct lgsm_handle *lh, u_int8_t loglevel);
+
 #endif

src/gsmd/usock.c

@@ -43,6 +43,8 @@
 #include <gsmd/ts0707.h>
 #include <gsmd/sms.h>
 
+extern int loglevel;
+
 static void *__ucmd_ctx, *__gu_ctx;
 
 struct gsmd_ucmd *ucmd_alloc(int extra_size)
@@ -765,6 +767,14 @@ static int usock_rcv_phone(struct gsmd_user *gu, struct gsmd_msg_hdr *gph,
 		cmd = atcmd_fill("AT+CVIB=0", 9+1, &phone_vibrator_disable_cb, gu, 0, NULL);
 		gu->gsmd->dev_state.vibrator = 0;
 		break;
+	case GSMD_PHONE_GSMD_LOGLEVEL:
+		if (gph->len < 1)
+			return -EINVAL;
+		gsmd_log(GSMD_NOTICE, "Setting loglevel to %u on client "
+			 "request\n", gph->data[0]);
+		loglevel = gph->data[0];
+		return 0;
+		break;
 	default:
 		return -EINVAL;
 	}

src/libgsmd/libgsmd_phone.c

@@ -1,6 +1,7 @@
 /* libgsmd phone related functions
  *
  * (C) 2006-2007 by OpenMoko, Inc.
+ * (C) 2013 by Harald Welte
  * Written by Harald Welte <laforge@openmoko.org>
  * All Rights Reserved
  *
@@ -90,4 +91,20 @@ int lgsm_phone_vibrator(struct lgsm_handle *lh, int enable)
 	
 	return lgsm_send_simple(lh, GSMD_MSG_PHONE, type);
 }
-		
+
+int lgsm_set_gsmd_loglevel(struct lgsm_handle *lh, u_int8_t loglevel)
+{
+	struct gsmd_msg_hdr *gmh;
+	int rc;
+
+	gmh = lgsm_gmh_fill(GSMD_MSG_PHONE, GSMD_PHONE_GSMD_LOGLEVEL, 1);
+	if (!gmh)
+		return -ENOMEM;
+
+	gmh->data[0] = loglevel;
+
+	rc = lgsm_send(lh, gmh);
+
+	lgsm_gmh_free(gmh);
+	return rc;
+}

src/util/libgsmd-tool.c

@@ -1,6 +1,7 @@
 /* libgsmd tool
  *
  * (C) 2006-2007 by OpenMoko, Inc.
+ * (C) 2013 by Harald Welte
  * Written by Harald Welte <laforge@openmoko.org>
  * All Rights Reserved
  *
@@ -102,6 +103,7 @@ int main(int argc, char **argv)
 	int mode = MODE_NONE, shellwait = 0;
 
 	printf("libgsm-tool - (C) 2006-2007 by Harald Welte and OpenMoko, Inc.\n"
+	       "              (C) 2012-2013 by Harald Welte\n"
 		"This program is Free Software and has ABSOLUTELY NO WARRANTY\n\n");
 
 	while (1) {

src/util/shell.c

@@ -604,6 +604,7 @@ static void shell_help(void)
 		"\tCFQ\tQuery the status of call forwarding (CFQ=reason)\n"
 		"\tCFR\tRegister call forwarding (CFR=reason,number)\n"
 		"\tCFe\tErase a record of call forwarding (CFe=reason)\n"
+		"\tlog=N\tSet gsmd Log Level (1=debug, 8=fatal)\n"
 		"\tq\tQuit\n"
 		);
 }
@@ -1024,6 +1025,10 @@ int shell_main(struct lgsm_handle *lgsmh, int sync)
 				printf("Battery Connection status and Battery Charge Level\n");
 				lgsm_get_battery(lgsmh);
 				pending_responses++;
+			} else if (!strncmp(buf, "log=", 4)) {
+				int gsmd_loglevel = atoi(buf+4);
+				lgsm_set_gsmd_loglevel(lgsmh, gsmd_loglevel);
+				pending_responses++;
 			}else {
 				printf("Unknown command `%s'\n", buf);
 			}