[MTR-MTQ] Quectel support for sms-utils

- Added new "manufacturer" field to the "global_core" structure
- Added the "atcmd_plus_gmi_read()" function to fetch manufacturer identification
- Added a call to the "atcmd_plus_gmi_read()" in "sms_atcmd_init()"
- Added "is_telit_model()" and "is_quectel_model()" functions to pick
  a proper manufacturer-specific command in "atcmd_plus_iccid_read()" and,
  possibly, other commands in the future
- Tabs VS spaces. This project uses tabs

3 files changed, 77 insertions, 3 deletions

diff --git a/src/atcmd.c b/src/atcmd.c
index 595a91a..9e230c5 100644
--- a/src/atcmd.c
+++ b/src/atcmd.c
@@ -1243,6 +1243,50 @@ int atcmd_plus_gmm_read(int fd)
 	return 0;
 }
 
+/* Manufacturer identification is needed to pick proper manufacturer-specific commands.
+ * For example, in atcmd_plus_iccid_read() function. */
+int atcmd_plus_gmi_read(int fd)
+{
+	char buf[ATCMD_LINE_SIZE];
+	char *save;
+	char *token;
+	int tmp;
+
+	atcmd_writeline(fd, "AT+GMI");
+	//Swallow extra "\r\n"
+	tmp = atcmd_readline(fd, buf, sizeof(buf));
+	if (tmp <= 0) {
+		log_debug("expected \\r\\n but it was not received");
+		return -1;
+	}
+
+	//Read manufacturer string
+	tmp = atcmd_readline(fd, buf, sizeof(buf));
+	if (tmp <= 0) {
+		log_debug("expected manufacturer but it was not received");
+		return -1;
+	}
+
+	save = buf;
+	token = atcmd_value_tok(&save);
+	if (!token) {
+		log_debug("atcmd_value_tok manufacturer");
+		return -1;
+	}
+	free(Global.core.manufacturer);
+	Global.core.manufacturer = strdup(token);
+
+	log_debug("manufacturer: %s", Global.core.manufacturer);
+
+	tmp = atcmd_expect_line(fd, buf, sizeof(buf), "OK");
+	if (tmp <= 0) {
+		log_debug("expected OK but it was not received");
+		return -1;
+	}
+
+	return 0;
+}
+
 /* ICCID needed for LNA3 to determine carrier */
 int atcmd_plus_iccid_read(int fd)
 {
@@ -1348,12 +1392,18 @@ static int sms_atcmd_init(int fd)
 		return -1;
 	}
 
-  tmp = atcmd_plus_gmm_read(fd);
+	tmp = atcmd_plus_gmm_read(fd);
 	if (tmp < 0) {
     log_error("failed to read radio model");
 		return -1;
 	}
 
+	tmp = atcmd_plus_gmi_read(fd);
+	if (tmp < 0) {
+	log_error("failed to read radio manufacturer");
+		return -1;
+	}
+
     tmp = atcmd_plus_iccid_read(fd);
 	if (tmp < 0) {
     log_error("failed to read SIM ICCID");
@@ -1494,3 +1544,22 @@ int isCdmaTypeModel()
           !strcmp(Global.core.model, "CE910-DUAL"));
 }
 
+int is_telit_model()
+{
+	if (!strcmp(Global.core.manufacturer, "Telit")) {
+		log_debug("Found Telit model");
+		return 1;
+	}
+
+	return 0;
+}
+
+int is_quectel_model()
+{
+	if (!strcmp(Global.core.manufacturer, "Quectel")) {
+		log_debug("Found Quectel model");
+		return 1;
+	}
+
+	return 0;
+}
diff --git a/src/atcmd.h b/src/atcmd.h
index c13866e..dc3d5d9 100644
--- a/src/atcmd.h
+++ b/src/atcmd.h
@@ -3,6 +3,7 @@
 
 #include <termios.h>
 #include <stdarg.h>
+#include <stddef.h>
 
 #ifdef __ATCMD_C
 #define ATCMD_EXTERN
@@ -113,11 +114,14 @@ int atcmd_plus_cpbs_write(int fd, const char *name);
 int atcmd_plus_cpbr_test(int fd, struct phonebook_store *store);
 
 int atcmd_plus_gmm_read(int fd);
+int atcmd_plus_gmi_read(int fd);
 
 int atcmd_init(int fd, int read_timeout);
 int sms_device_close(int fd);
 int sms_device_open(void);
 int is_vzw_lte(void);
+int is_telit_model(void);
+int is_quectel_model(void);
 
 #if __ATCMD_C
 const char *abort_dfl[] = {
diff --git a/src/global.h b/src/global.h
index fc8df6f..764cc06 100644
--- a/src/global.h
+++ b/src/global.h
@@ -29,8 +29,9 @@ struct global_core {
 	char *msg_store_send;
 	char *msg_store_new;
 	char *pb_store;
-  char *model;
-    char *iccid;  /* Needed for LNA3/Verizon */
+	char *model;
+	char *iccid;  /* Needed for LNA3/Verizon */
+	char *manufacturer;  /* Needed to pick proper manufacturer-specific commands */
 
 	char *editor;
 	char *edit_file;