15 files changed, 175 insertions, 80 deletions

diff --git a/README b/README
new file mode 100644
index 0000000..52f7ab2
--- /dev/null
+++ b/README
@@ -0,0 +1,54 @@
+	 / _____)             _              | |    
+	( (____  _____ ____ _| |_ _____  ____| |__  
+	 \____ \| ___ |    (_   _) ___ |/ ___)  _ \ 
+	 _____) ) ____| | | || |_| ____( (___| | | |
+	(______/|_____)_|_|_| \__)_____)\____)_| |_|
+		©2013 Semtech-Cycleo
+
+Lora Gateway HAL project
+=========================
+
+1. Core library: libloragw
+---------------------------
+
+This directory contains the sources of the library to build a gateway based on 
+a Semtech Lora multi-channel RF receiver.
+Once compiled all the code is contained in the libloragw.a file that will be 
+statically linked (ie. integrated in the final executable).
+
+The library also comes with a bunch of basic tests programs that are used to 
+test the different sub-modules of the library.
+
+2. Helper programs
+-------------------
+
+Those programs are included in the project to provide examples on how to use 
+the HAL library, and to help the system builder test different parts of it.
+
+### 2.1. loragw_band_survey ###
+
+This software is used to scan the RF band and measure background RSSI and some
+measurement of interferer pattern.
+
+### 2.2. loragw_pkt_logger ###
+
+This software is used to set up a Lora concentrator using a JSON configuration
+file and then record all the packets received in a log file, indefinitely, until
+the user stops the application.
+
+### 2.3. loragw_spi_stress ###
+
+This software is used to check the reliability of the link between the host
+platform (on which the program is run) and the Lora concentrator register file
+that is the interface through which all interaction with the Lora concentrator
+happens.
+
+### 2.4. loragw_tx_test ###
+
+This software is used to send test packets with a Lora concentrator. The packets
+contain little information, on no protocol (ie. MAC address) information but
+can be used to assess the functionality of a gateway downlink using other
+gateways as receivers.
+
+
+*EOF*
\ No newline at end of file
diff --git a/libloragw/Makefile b/libloragw/Makefile
index b910c92..db45383 100644
--- a/libloragw/Makefile
+++ b/libloragw/Makefile
@@ -2,6 +2,7 @@
 include library.cfg
 
 # constant symbols
+CROSS_COMPILE=
 CC=gcc
 CFLAGS=-O2 -Wall -Wextra -Iinc -I.
 C99FLAGS=-O2 -Wall -Wextra -std=c99 -Iinc -I.
@@ -43,35 +44,35 @@ endif
 # static library
 
 libloragw.a: obj/loragw_hal.o obj/loragw_reg.o obj/loragw_spi.o obj/loragw_aux.o
-	ar rcs libloragw.a obj/loragw_hal.o obj/loragw_reg.o obj/loragw_spi.o obj/loragw_aux.o
+	$(CROSS_COMPILE)ar rcs libloragw.a obj/loragw_hal.o obj/loragw_reg.o obj/loragw_spi.o obj/loragw_aux.o
 
 # library module target
 
 obj/loragw_aux.o: .conf_ok src/loragw_aux.c inc/loragw_aux.h
-	$(CC) -c $(CFLAGS) src/loragw_aux.c -o obj/loragw_aux.o $(FLAG_AUX)
+	$(CROSS_COMPILE)$(CC) -c $(CFLAGS) src/loragw_aux.c -o obj/loragw_aux.o $(FLAG_AUX)
 
 obj/loragw_spi.o: .conf_ok src/loragw_spi.native.c src/loragw_spi.ftdi.c inc/loragw_spi.h
 ifeq ($(LGW_PHY),native)
-	$(CC) -c $(C99FLAGS) src/loragw_spi.native.c -o obj/loragw_spi.o $(FLAG_SPI)
+	$(CROSS_COMPILE)$(CC) -c $(C99FLAGS) src/loragw_spi.native.c -o obj/loragw_spi.o $(FLAG_SPI)
 endif
 ifeq ($(LGW_PHY),ftdi)
-	$(CC) -c $(C99FLAGS) src/loragw_spi.ftdi.c -o obj/loragw_spi.o $(FLAG_SPI)
+	$(CROSS_COMPILE)$(CC) -c $(C99FLAGS) src/loragw_spi.ftdi.c -o obj/loragw_spi.o $(FLAG_SPI)
 endif
 
 obj/loragw_reg.o: .conf_ok src/loragw_reg.c inc/loragw_reg.h inc/loragw_spi.h
-	$(CC) -c $(C99FLAGS) src/loragw_reg.c -o obj/loragw_reg.o $(FLAG_REG)
+	$(CROSS_COMPILE)$(CC) -c $(C99FLAGS) src/loragw_reg.c -o obj/loragw_reg.o $(FLAG_REG)
 
 obj/loragw_hal.o: .conf_ok VERSION src/loragw_hal.c src/arb_fw.var src/agc_fw.var inc/loragw_hal.h inc/loragw_reg.h inc/loragw_spi.h inc/loragw_aux.h
-	$(CC) -c $(C99FLAGS) src/loragw_hal.c -o obj/loragw_hal.o -D LGW_PHY="\"$(LGW_PHY)\"" $(FLAG_HAL)
+	$(CROSS_COMPILE)$(CC) -c $(C99FLAGS) src/loragw_hal.c -o obj/loragw_hal.o -D LGW_PHY="\"$(LGW_PHY)\"" $(FLAG_HAL)
 
 # test programs
 
 test_loragw_spi: tst/test_loragw_spi.c obj/loragw_spi.o
-	$(CC) $(C99FLAGS) tst/test_loragw_spi.c obj/loragw_spi.o -o test_loragw_spi $(LDFLAGS)
+	$(CROSS_COMPILE)$(CC) $(C99FLAGS) tst/test_loragw_spi.c obj/loragw_spi.o -o test_loragw_spi $(LDFLAGS)
 
 test_loragw_reg: tst/test_loragw_reg.c obj/loragw_reg.o obj/loragw_spi.o
-	$(CC) $(C99FLAGS) tst/test_loragw_reg.c obj/loragw_reg.o obj/loragw_spi.o -o test_loragw_reg $(LDFLAGS)
+	$(CROSS_COMPILE)$(CC) $(C99FLAGS) tst/test_loragw_reg.c obj/loragw_reg.o obj/loragw_spi.o -o test_loragw_reg $(LDFLAGS)
 	
 test_loragw_hal: tst/test_loragw_hal.c obj/loragw_hal.o obj/loragw_reg.o obj/loragw_spi.o obj/loragw_aux.o
-	$(CC) $(C99FLAGS) tst/test_loragw_hal.c obj/loragw_hal.o obj/loragw_reg.o obj/loragw_spi.o obj/loragw_aux.o -o test_loragw_hal $(LDFLAGS)
+	$(CROSS_COMPILE)$(CC) $(C99FLAGS) tst/test_loragw_hal.c obj/loragw_hal.o obj/loragw_reg.o obj/loragw_spi.o obj/loragw_aux.o -o test_loragw_hal $(LDFLAGS)
 
diff --git a/libloragw/README b/libloragw/README
new file mode 100644
index 0000000..da4cd4d
--- /dev/null
+++ b/libloragw/README
@@ -0,0 +1,55 @@
+Lora Gateway HAL library 
+=========================
+
+1. Content of subdirectories
+-----------------------------
+
+### 1.1. doc ###
+
+Contains the user manual, licensing informations, udev rules, etc.
+
+### 1.2. inc ###
+
+Contain C header files for the different sub-modules of the library.
+
+You *MUST* include loragw_hal.h in your application.
+You *MAY* include loragw_reg.h in your application if you need direct registers 
+access.
+
+### 1.3. obj ###
+
+Contained the compiled intermediary objects.
+
+### 1.4. src ###
+
+Contain library C sources.
+
+### 1.5. tst ###
+
+Contain the C sources for test programs to validate SPI link, register access 
+and hardware functionality.
+
+2. Legal notice
+----------------
+
+The information presented in this project documentation does not form part of 
+any quotation or contract, is believed to be accurate and reliable and may be 
+changed without notice. No liability will be accepted by the publisher for any 
+consequence of its use. Publication thereof does not convey nor imply any 
+license under patent or other industrial or intellectual property rights. 
+Semtech assumes no responsibility or liability whatsoever for any failure or 
+unexpected operation resulting from misuse, neglect improper installation, 
+repair or improper handling or unusual physical or electrical stress 
+including, but not limited to, exposure to parameters beyond the specified 
+maximum ratings or operation outside the specified range. 
+
+SEMTECH PRODUCTS ARE NOT DESIGNED, INTENDED, AUTHORIZED OR WARRANTED TO BE 
+SUITABLE FOR USE IN LIFE-SUPPORT APPLICATIONS, DEVICES OR SYSTEMS OR OTHER 
+CRITICAL APPLICATIONS. INCLUSION OF SEMTECH PRODUCTS IN SUCH APPLICATIONS IS 
+UNDERSTOOD TO BE UNDERTAKEN SOLELY AT THE CUSTOMER’S OWN RISK. Should a 
+customer purchase or use Semtech products for any such unauthorized 
+application, the customer shall indemnify and hold Semtech and its officers, 
+employees, subsidiaries, affiliates, and distributors harmless against all 
+claims, costs damages and attorney fees which could arise.
+
+*EOF*
\ No newline at end of file
diff --git a/libloragw/README.TXT b/libloragw/README.TXT
deleted file mode 100644
index 9d13a4a..0000000
--- a/libloragw/README.TXT
+++ /dev/null
@@ -1,30 +0,0 @@
-Lora Gateway HAL library - Content of subdirectories
-====================================================
-
-## 1. doc ##
-
-Contains the user manual, licensing informations, udev rules, etc.
-
-## 2. inc ##
-
-Contain C header files for the different sub-modules of the library.
-
-You *MUST* include loragw_hal.h in your application.
-You *MAY* include loragw_reg.h in your application if you need direct registers 
-access.
-
-## 3. obj ##
-
-Contained the compiled intermediary objects.
-
-## 4. src ##
-
-Contain library C sources.
-
-## 5. tst ##
-
-Contain the C sources for test programs to validate SPI link, register access 
-and hardware functionality.
-
-
-*EOF*
\ No newline at end of file
diff --git a/libloragw/doc/MANUAL.TXT b/libloragw/doc/MANUAL.TXT
index 1659f03..a086761 100644
--- a/libloragw/doc/MANUAL.TXT
+++ b/libloragw/doc/MANUAL.TXT
@@ -200,14 +200,14 @@ started
 
 A typical application flow for using the HAL is the following:
 
-<configure the radios and IF+modems>
-<start the Lora gateway>
-loop {
-	<fetch packets that were received by the gateway>
-	<process, store and/or forward received packets>
-	<send packets through the gateway>
-}
-<stop the gateway>
+	<configure the radios and IF+modems>
+	<start the Lora gateway>
+	loop {
+		<fetch packets that were received by the gateway>
+		<process, store and/or forward received packets>
+		<send packets through the gateway>
+	}
+	<stop the gateway>
 
 **/!\ Warning** The lgw_send function is non-blocking and returns while the
 Lora gateway is still sending the packet, or even before the packet has started
diff --git a/libloragw/src/loragw_hal.c b/libloragw/src/loragw_hal.c
index 5d9138d..c2329fc 100644
--- a/libloragw/src/loragw_hal.c
+++ b/libloragw/src/loragw_hal.c
@@ -454,11 +454,13 @@ int lgw_rxrf_setconf(uint8_t rf_chain, struct lgw_conf_rxrf_s conf) {
 		return LGW_HAL_ERROR;
 	}
 	
-	/* check input parameters */
-	if (rf_chain > LGW_RF_CHAIN_NB) {
+	/* check input range (segfault prevention) */
+	if (rf_chain >= LGW_RF_CHAIN_NB) {
 		DEBUG_MSG("ERROR: NOT A VALID RF_CHAIN NUMBER\n");
 		return LGW_HAL_ERROR;
 	}
+	
+	/* check input parameters */
 	if (conf.freq_hz > rf_rx_upfreq[rf_chain]) {
 		DEBUG_MSG("ERROR: FREQUENCY TOO HIGH FOR THAT RF_CHAIN\n");
 		return LGW_HAL_ERROR;
@@ -483,6 +485,12 @@ int lgw_rxif_setconf(uint8_t if_chain, struct lgw_conf_rxif_s conf) {
 		return LGW_HAL_ERROR;
 	}
 	
+	/* check input range (segfault prevention) */
+	if (if_chain >= LGW_IF_CHAIN_NB) {
+		DEBUG_PRINTF("ERROR: %d NOT A VALID IF_CHAIN NUMBER\n", if_chain);
+		return LGW_HAL_ERROR;
+	}
+	
 	/* if chain is disabled, don't care about most parameters */
 	if (conf.enable == false) {
 		if_enable[if_chain] = false;
@@ -492,10 +500,6 @@ int lgw_rxif_setconf(uint8_t if_chain, struct lgw_conf_rxif_s conf) {
 	}
 	
 	/* check 'general' parameters */
-	if (if_chain > LGW_IF_CHAIN_NB) {
-		DEBUG_PRINTF("ERROR: %d NOT A VALID IF_CHAIN NUMBER\n", if_chain);
-		return LGW_HAL_ERROR;
-	}
 	if (ifmod_config[if_chain] == IF_UNDEFINED) {
 		DEBUG_PRINTF("ERROR: IF CHAIN %d NOT CONFIGURABLE\n", if_chain);
 	}
@@ -954,11 +958,13 @@ int lgw_send(struct lgw_pkt_tx_s pkt_data) {
 		return LGW_HAL_ERROR;
 	}
 	
-	/* check input variables */
+	/* check input range (segfault prevention) */
 	if (pkt_data.rf_chain >= LGW_RF_CHAIN_NB) {
 		DEBUG_MSG("ERROR: INVALID RF_CHAIN TO SEND PACKETS\n");
 		return LGW_HAL_ERROR;
 	}
+	
+	/* check input variables */
 	if (rf_enable[pkt_data.rf_chain] == false) {
 		DEBUG_MSG("ERROR: SELECTED RF_CHAIN IS DISABLED\n");
 		return LGW_HAL_ERROR;
diff --git a/libloragw/tst/test_loragw_hal.c b/libloragw/tst/test_loragw_hal.c
index c777597..6881760 100644
--- a/libloragw/tst/test_loragw_hal.c
+++ b/libloragw/tst/test_loragw_hal.c
@@ -82,8 +82,6 @@ int main()
 	unsigned long loop_cnt = 0;
 	uint8_t status_var = 0;
 	
-	FILE * reg_dump = NULL;
-	
 	/* configure signal handling */
 	sigemptyset(&sigact.sa_mask);
 	sigact.sa_flags = 0;
@@ -180,14 +178,21 @@ int main()
 	printf("*** Library version information ***\n%s\n***\n", lgw_version_info());
 	
 	/* connect, configure and start the Lora gateway */
-	lgw_start();
+	i = lgw_start();
+	if (i == LGW_HAL_SUCCESS) {
+		printf("*** Concentrator started ***\n");
+	} else {
+		printf("*** Impossible to start concentrator ***\n");
+		return -1;
+	}
 	
 	/* once configured, dump content of registers to a file, for reference */
-	reg_dump = fopen("reg_dump.log", "w");
-	if (reg_dump != NULL) {
-		lgw_reg_check(reg_dump);
-		fclose(reg_dump);
-	}
+	// FILE * reg_dump = NULL;
+	// reg_dump = fopen("reg_dump.log", "w");
+	// if (reg_dump != NULL) {
+		// lgw_reg_check(reg_dump);
+		// fclose(reg_dump);
+	// }
 	
 	while ((quit_sig != 1) && (exit_sig != 1)) {
 		loop_cnt++;
diff --git a/loragw_band_survey/Makefile b/loragw_band_survey/Makefile
index 4ae2f2e..22d1f87 100644
--- a/loragw_band_survey/Makefile
+++ b/loragw_band_survey/Makefile
@@ -3,7 +3,7 @@
 APP_NAME=loragw_band_survey
 
 ### constant symbols
-
+CROSS_COMPILE=
 CC=gcc
 CFLAGS=-O2 -Wall -Wextra -Iinc
 C99FLAGS=-O2 -Wall -Wextra -std=c99 -Iinc
@@ -31,7 +31,7 @@ clean:
 ### main program compilation and assembly
 
 obj/$(APP_NAME).o: src/$(APP_NAME).c src/rssi_fw.var
-	$(CC) -c $(C99FLAGS) -o obj/$(APP_NAME).o $(LGW_INC) src/$(APP_NAME).c $(FLAG_AUX)
+	$(CROSS_COMPILE)$(CC) -c $(C99FLAGS) -o obj/$(APP_NAME).o $(LGW_INC) src/$(APP_NAME).c $(FLAG_AUX)
 
 $(APP_NAME): $(LGW_PATH)/libloragw.a obj/$(APP_NAME).o
-	$(CC) -o $(APP_NAME) obj/$(APP_NAME).o -L$(LGW_PATH) $(LGW_LNK)
+	$(CROSS_COMPILE)$(CC) -o $(APP_NAME) obj/$(APP_NAME).o -L$(LGW_PATH) $(LGW_LNK)
diff --git a/loragw_band_survey/README.TXT b/loragw_band_survey/README
index a34134d..a34134d 100644
--- a/loragw_band_survey/README.TXT
+++ b/loragw_band_survey/README
diff --git a/loragw_pkt_logger/Makefile b/loragw_pkt_logger/Makefile
index 761ab03..8946c5b 100644
--- a/loragw_pkt_logger/Makefile
+++ b/loragw_pkt_logger/Makefile
@@ -3,7 +3,7 @@
 APP_NAME=loragw_pkt_logger
 
 ### constant symbols
-
+CROSS_COMPILE=
 CC=gcc
 CFLAGS=-O2 -Wall -Wextra -Iinc
 C99FLAGS=-O2 -Wall -Wextra -std=c99 -Iinc
@@ -29,12 +29,12 @@ clean:
 ### sub-modules compilation
 
 obj/parson.o: src/parson.c 
-	$(CC) -c $(C99FLAGS) -o obj/parson.o $(LGW_INC) src/parson.c $(FLAG_AUX)
+	$(CROSS_COMPILE)$(CC) -c $(C99FLAGS) -o obj/parson.o $(LGW_INC) src/parson.c $(FLAG_AUX)
 
 ### main program compilation and assembly
 
 obj/$(APP_NAME).o: src/$(APP_NAME).c 
-	$(CC) -c $(C99FLAGS) -o obj/$(APP_NAME).o $(LGW_INC) src/$(APP_NAME).c $(FLAG_AUX)
+	$(CROSS_COMPILE)$(CC) -c $(C99FLAGS) -o obj/$(APP_NAME).o $(LGW_INC) src/$(APP_NAME).c $(FLAG_AUX)
 
 $(APP_NAME): $(LGW_PATH)/libloragw.a obj/$(APP_NAME).o obj/parson.o
-	$(CC) -o $(APP_NAME) obj/$(APP_NAME).o obj/parson.o -L$(LGW_PATH) $(LGW_LNK)
+	$(CROSS_COMPILE)$(CC) -o $(APP_NAME) obj/$(APP_NAME).o obj/parson.o -L$(LGW_PATH) $(LGW_LNK)
diff --git a/loragw_pkt_logger/README.TXT b/loragw_pkt_logger/README
index 9469904..9469904 100644
--- a/loragw_pkt_logger/README.TXT
+++ b/loragw_pkt_logger/README
diff --git a/loragw_spi_stress/Makefile b/loragw_spi_stress/Makefile
index b19eee9..4006dc3 100644
--- a/loragw_spi_stress/Makefile
+++ b/loragw_spi_stress/Makefile
@@ -3,7 +3,7 @@
 APP_NAME=loragw_spi_stress
 
 ### constant symbols
-
+CROSS_COMPILE=
 CC=gcc
 CFLAGS=-O2 -Wall -Wextra -Iinc
 C99FLAGS=-O2 -Wall -Wextra -std=c99 -Iinc
@@ -29,7 +29,7 @@ clean:
 ### main program compilation and assembly
 
 obj/$(APP_NAME).o: src/$(APP_NAME).c 
-	$(CC) -c $(C99FLAGS) -o obj/$(APP_NAME).o $(LGW_INC) src/$(APP_NAME).c $(FLAG_AUX)
+	$(CROSS_COMPILE)$(CC) -c $(C99FLAGS) -o obj/$(APP_NAME).o $(LGW_INC) src/$(APP_NAME).c $(FLAG_AUX)
 
 $(APP_NAME): $(LGW_PATH)/libloragw.a obj/$(APP_NAME).o
-	$(CC) -o $(APP_NAME) obj/$(APP_NAME).o -L$(LGW_PATH) $(LGW_LNK)
+	$(CROSS_COMPILE)$(CC) -o $(APP_NAME) obj/$(APP_NAME).o -L$(LGW_PATH) $(LGW_LNK)
diff --git a/loragw_spi_stress/README.TXT b/loragw_spi_stress/README
index 605fed6..98c4f40 100644
--- a/loragw_spi_stress/README.TXT
+++ b/loragw_spi_stress/README
@@ -27,11 +27,12 @@ with any later version of the library and the hardware, assuming the registers
 used for the tests are still present.
 
 The registers used are:
-LGW_VERSION
-LGW_IMPLICIT_PAYLOAD_LENGHT
-LGW_FSK_REF_PATTERN_LSB
-LGW_RX_DATA_BUF_ADDR
-LGW_RX_DATA_BUF_DATA
+ * LGW_VERSION
+ * LGW_IMPLICIT_PAYLOAD_LENGHT
+ * LGW_FSK_REF_PATTERN_LSB
+ * LGW_RX_DATA_BUF_ADDR
+ * LGW_RX_DATA_BUF_DATA
+
 A data buffer accessible through the 2 registers above must be implemented.
 
 3. Usage
@@ -53,8 +54,11 @@ to be sure that the data read back is coming from the hardware, and not from the
 internal buffer(s) of the software driver(s).
 
 Test 1 > R/W on a simple 8-bit register
+
 Test 2 > R/W on a simple 8-bit register with interstitial reads on VERSION
+
 Test 3 > R/W on a 32-bit register (short SPI bursts access)
+
 Test 4 > data buffer R/W (long SPI bursts access)
 
 4. Changelog
diff --git a/loragw_tx_test/Makefile b/loragw_tx_test/Makefile
index 8ece9b9..3de440b 100644
--- a/loragw_tx_test/Makefile
+++ b/loragw_tx_test/Makefile
@@ -3,7 +3,7 @@
 APP_NAME=loragw_tx_test
 
 ### constant symbols
-
+CROSS_COMPILE=
 CC=gcc
 CFLAGS=-O2 -Wall -Wextra -Iinc
 C99FLAGS=-O2 -Wall -Wextra -std=c99 -Iinc
@@ -29,7 +29,7 @@ clean:
 ### main program compilation and assembly
 
 obj/$(APP_NAME).o: src/$(APP_NAME).c 
-	$(CC) -c $(C99FLAGS) -o obj/$(APP_NAME).o $(LGW_INC) src/$(APP_NAME).c $(FLAG_AUX)
+	$(CROSS_COMPILE)$(CC) -c $(C99FLAGS) -o obj/$(APP_NAME).o $(LGW_INC) src/$(APP_NAME).c $(FLAG_AUX)
 
 $(APP_NAME): $(LGW_PATH)/libloragw.a obj/$(APP_NAME).o
-	$(CC) -o $(APP_NAME) obj/$(APP_NAME).o -L$(LGW_PATH) $(LGW_LNK)
+	$(CROSS_COMPILE)$(CC) -o $(APP_NAME) obj/$(APP_NAME).o -L$(LGW_PATH) $(LGW_LNK)
diff --git a/loragw_tx_test/README.TXT b/loragw_tx_test/README
index 435b162..435b162 100644
--- a/loragw_tx_test/README.TXT
+++ b/loragw_tx_test/README