X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/hmcfgusb/blobdiff_plain/9fb0f4d2becd19b6ef278ebe01159a2a3899abea..b5e57d268fe86cf58116c03166d45c130280dfb6:/flash-hmcfgusb.c

diff --git a/flash-hmcfgusb.c b/flash-hmcfgusb.c
index 0308442..aebf781 100644
--- a/flash-hmcfgusb.c
+++ b/flash-hmcfgusb.c
@@ -39,23 +39,17 @@
 #include "hmcfgusb.h"
 
 struct recv_data {
+	int ack;
 };
 
 static int parse_hmcfgusb(uint8_t *buf, int buf_len, void *data)
 {
-	if (buf_len < 1)
+	struct recv_data *rdata = data;
+
+	if (buf_len != 1)
 		return 1;
 
-	switch(buf[0]) {
-		case 'E':
-		case 'H':
-		case 'R':
-		case 'I':
-			break;
-		default:
-			hexdump(buf, buf_len, "Unknown> ");
-			break;
-	}
+	rdata->ack = buf[0];
 
 	return 1;
 }
@@ -79,48 +73,122 @@ int main(int argc, char **argv)
 {
 	struct hmcfgusb_dev *dev;
 	struct recv_data rdata;
-	uint8_t out[0x40]; //FIXME!!!
-	uint8_t buf[0x80];
+	uint8_t out[4096];
+	uint8_t buf[4096];
+	uint8_t *outp;
 	int fd;
+	int pfd;
 	int r;
 	int i;
 	int cnt;
+	int pkt;
+	int debug = 0;
 
-	hmcfgusb_set_debug(0);
+	hmcfgusb_set_debug(debug);
 
 	memset(&rdata, 0, sizeof(rdata));
 
+	fd = open("hmusbif.enc", O_RDONLY);
+	if (fd < 0) {
+		perror("Can't open hmusbif.enc");
+		exit(EXIT_FAILURE);
+	}
+
 	dev = hmcfgusb_init(parse_hmcfgusb, &rdata);
 	if (!dev) {
 		fprintf(stderr, "Can't initialize HM-CFG-USB\n");
 		exit(EXIT_FAILURE);
 	}
-	printf("HM-CFG-USB opened!\n");
 
-	fd = open("hmusbif.enc", O_RDONLY);
-	if (fd < 0) {
-		perror("Can't open hmusbif.enc");
-		exit(EXIT_FAILURE);
+	if (!dev->bootloader) {
+		fprintf(stderr, "HM-CFG-USB not in bootloader mode, entering bootloader.\n");
+		hmcfgusb_enter_bootloader(dev);
+		fprintf(stderr, "\nWaiting for device to reappear...\n");
+
+		do {
+			sleep(1);
+		} while ((dev = hmcfgusb_init(parse_hmcfgusb, &rdata)) == NULL);
+
+		if (!dev->bootloader) {
+			fprintf(stderr, "Can't enter bootloader, giving up!\n");
+			exit(EXIT_FAILURE);
+		}
 	}
 
+	printf("HM-CFG-USB opened!\n");
+
 	cnt = 0;
+	pkt = 0;
 	do {
+		int len;
+
 		memset(buf, 0, sizeof(buf));
-		r = read(fd, buf, sizeof(buf));
+		r = read(fd, buf, 4);
 		if (r < 0) {
 			perror("read");
 			exit(EXIT_FAILURE);
 		} else if (r == 0) {
 			break;
+		} else if (r != 4) {
+			printf("can't get length information!\n");
+			exit(EXIT_FAILURE);
+		}
+
+		len = (ascii_to_nibble(buf[0]) & 0xf)<< 4;
+		len |= ascii_to_nibble(buf[1]) & 0xf;
+		len <<= 8;
+		len |= (ascii_to_nibble(buf[2]) & 0xf)<< 4;
+		len |= ascii_to_nibble(buf[3]) & 0xf;
+
+		r = read(fd, buf, len * 2);
+		if (r < 0) {
+			perror("read");
+			exit(EXIT_FAILURE);
+		} else if (r < len * 2) {
+			printf("short read, aborting (%d < %d)\n", r, len * 2);
+			break;
 		}
+
 		memset(out, 0, sizeof(out));
+		outp = out;
+		*outp++ = (pkt >> 8) & 0xff;
+		*outp++ = pkt & 0xff;
+		*outp++ = (len >> 8) & 0xff;
+		*outp++ = len & 0xff;
 		for (i = 0; i < r; i+=2) {
-			out[i/2] = (ascii_to_nibble(buf[i]) & 0xf)<< 4;
-			out[i/2] |= ascii_to_nibble(buf[i+1]) & 0xf;
+			*outp = (ascii_to_nibble(buf[i]) & 0xf)<< 4;
+			*outp |= ascii_to_nibble(buf[i+1]) & 0xf;
+			outp++;
 		}
-		cnt += r/2;
+		cnt = outp - out;
 		printf("Flashing %d bytes...\n", cnt);
-		hmcfgusb_send(dev, out, r/2, 1);
+		if (debug)
+			hexdump(out, cnt, "F> ");
+
+		rdata.ack = 0;
+		if (!hmcfgusb_send(dev, out, cnt, 0)) {
+			perror("hmcfgusb_send");
+			exit(EXIT_FAILURE);
+		}
+
+		printf("Waiting for ack...\n");
+		do {
+			errno = 0;
+			pfd = hmcfgusb_poll(dev, 1);
+			if ((pfd < 0) && errno) {
+				perror("hmcfgusb_poll");
+				exit(EXIT_FAILURE);
+			}
+			if (rdata.ack) {
+				break;
+			}
+		} while (pfd < 0);
+
+		if (rdata.ack == 2) {
+			printf("Firmware update successfull!\n");
+			break;
+		}
+		pkt++;
 	} while (r > 0);
 
 	hmcfgusb_close(dev);