X-Git-Url: https://git.ao2.it/kinect-audio-setup.git/blobdiff_plain/19bf8b8b7bdf5db13a5506eafabe1aec15a65aaa..eaaa8a10a4e8af360bef60011f101afd92f3e472:/kinect_upload_fw/kinect_upload_fw.c

diff --git a/kinect_upload_fw/kinect_upload_fw.c b/kinect_upload_fw/kinect_upload_fw.c
index 80d435f..b2188d6 100644
--- a/kinect_upload_fw/kinect_upload_fw.c
+++ b/kinect_upload_fw/kinect_upload_fw.c
@@ -36,8 +36,10 @@
 #include <errno.h>
 #include <libusb.h>
 
+#include "endian.h"
+
 static libusb_device_handle *dev;
-unsigned int seq;
+static unsigned int seq;
 
 typedef struct {
 	uint32_t magic;
@@ -55,8 +57,15 @@ typedef struct {
 } status_code;
 
 #define LOG(...) printf(__VA_ARGS__)
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+static inline uint32_t fn_le32(uint32_t d)
+{
+	return (d<<24) | ((d<<8)&0xFF0000) | ((d>>8)&0xFF00) | (d>>24);
+}
+#else
 #define fn_le32(x) (x)
-// TODO: support architectures that aren't little-endian
+#endif
 
 static void dump_bl_cmd(bootloader_command cmd) {
 	int i;
@@ -68,7 +77,7 @@ static void dump_bl_cmd(bootloader_command cmd) {
 static int get_first_reply(void) {
 	unsigned char buffer[512];
 	int res;
-	int transferred;
+	int transferred = 0;
 	res = libusb_bulk_transfer(dev, 0x81, buffer, 512, &transferred, 0);
 	if (res != 0 ) {
 		LOG("Error reading first reply: %d\ttransferred: %d (expected %d)\n", res, transferred, 0x60);
@@ -92,11 +101,11 @@ static int get_reply(void) {
 		unsigned char dump[512];
 	} reply;
 	int res;
-	int transferred;
+	int transferred = 0;
 
 	res = libusb_bulk_transfer(dev, 0x81, reply.dump, 512, &transferred, 0);
 	if (res != 0 || transferred != sizeof(status_code)) {
-		LOG("Error reading reply: %d\ttransferred: %d (expected %lu)\n", res, transferred, sizeof(status_code));
+		LOG("Error reading reply: %d\ttransferred: %d (expected %zu)\n", res, transferred, sizeof(status_code));
 		return res;
 	}
 	if (fn_le32(reply.buffer.magic) != 0x0a6fe000) {
@@ -124,24 +133,26 @@ static int get_reply(void) {
 int main(int argc, char** argv) {
 	char default_filename[] = "firmware.bin";
 	char* filename = default_filename;
+	int res = 0;
 
 	if (argc == 2) {
 		filename = argv[1];
 	}
 
-	FILE* fw = fopen(filename, "r");
+	FILE* fw = fopen(filename, "rb");
 	if (fw == NULL) {
 		fprintf(stderr, "Failed to open %s: %s\n", filename, strerror(errno));
 		return errno;
 	}
 
 	libusb_init(NULL);
-	libusb_set_debug(0, 3);
+	libusb_set_debug(NULL, 3);
 
 	dev = libusb_open_device_with_vid_pid(NULL, 0x045e, 0x02ad);
 	if (dev == NULL) {
 		fprintf(stderr, "Couldn't open device.\n");
-		return 1;
+		res = -ENODEV;
+		goto fail_libusb_open;
 	}
 
 	libusb_set_configuration(dev, 1);
@@ -160,19 +171,22 @@ int main(int argc, char** argv) {
 	LOG("About to send: ");
 	dump_bl_cmd(cmd);
 
-	int res;
-	int transferred;
+	int transferred = 0;
 
 	res = libusb_bulk_transfer(dev, 1, (unsigned char*)&cmd, sizeof(cmd), &transferred, 0);
 	if (res != 0 || transferred != sizeof(cmd)) {
-		LOG("Error: res: %d\ttransferred: %d (expected %lu)\n", res, transferred, sizeof(cmd));
+		LOG("Error: res: %d\ttransferred: %d (expected %zu)\n", res, transferred, sizeof(cmd));
 		goto cleanup;
 	}
 	res = get_first_reply(); // This first one doesn't have the usual magic bytes at the beginning, and is 96 bytes long - much longer than the usual 12-byte replies.
 	res = get_reply(); // I'm not sure why we do this twice here, but maybe it'll make sense later.
 	seq++;
 
-	uint32_t addr = 0x00080000;
+	// Split addr declaration and assignment in order to compile as C++,
+	// otherwise this would give "jump to label '...' crosses initialization"
+	// errors.
+	uint32_t addr;
+	addr = 0x00080000;
 	unsigned char page[0x4000];
 	int read;
 	do {
@@ -188,14 +202,16 @@ int main(int argc, char** argv) {
 		LOG("About to send: ");
 		dump_bl_cmd(cmd);
 		// Send it off!
+		transferred = 0;
 		res = libusb_bulk_transfer(dev, 1, (unsigned char*)&cmd, sizeof(cmd), &transferred, 0);
 		if (res != 0 || transferred != sizeof(cmd)) {
-			LOG("Error: res: %d\ttransferred: %d (expected %lu)\n", res, transferred, sizeof(cmd));
+			LOG("Error: res: %d\ttransferred: %d (expected %zu)\n", res, transferred, sizeof(cmd));
 			goto cleanup;
 		}
 		int bytes_sent = 0;
 		while (bytes_sent < read) {
 			int to_send = (read - bytes_sent > 512 ? 512 : read - bytes_sent);
+			transferred = 0;
 			res = libusb_bulk_transfer(dev, 1, &page[bytes_sent], to_send, &transferred, 0);
 			if (res != 0 || transferred != to_send) {
 				LOG("Error: res: %d\ttransferred: %d (expected %d)\n", res, transferred, to_send);
@@ -214,9 +230,10 @@ int main(int argc, char** argv) {
 	cmd.cmd = fn_le32(0x04);
 	cmd.write_addr = fn_le32(0x00080030);
 	dump_bl_cmd(cmd);
+	transferred = 0;
 	res = libusb_bulk_transfer(dev, 1, (unsigned char*)&cmd, sizeof(cmd), &transferred, 0);
 	if (res != 0 || transferred != sizeof(cmd)) {
-		LOG("Error: res: %d\ttransferred: %d (expected %lu)\n", res, transferred, sizeof(cmd));
+		LOG("Error: res: %d\ttransferred: %d (expected %zu)\n", res, transferred, sizeof(cmd));
 		goto cleanup;
 	}
 	res = get_reply();
@@ -225,6 +242,8 @@ int main(int argc, char** argv) {
 
 cleanup:
 	libusb_close(dev);
+fail_libusb_open:
 	libusb_exit(NULL);
-	return 0;
+	fclose(fw);
+	return res;
 }