From: notaz <notasas@gmail.com>
Date: Wed, 2 Sep 2020 20:49:35 +0000 (+0300)
Subject: support simple writes
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=78ad81397a40de75d279d6a17969d04a2503785c;p=flashkit-mdc.git

support simple writes
---

diff --git a/flashkit.c b/flashkit.c
index 5d8a587..1dc54d9 100644
--- a/flashkit.c
+++ b/flashkit.c
@@ -440,15 +440,36 @@ static void print_progress(uint32_t done, uint32_t total)
 		fputc('\n', stdout);
 }
 
+static FILE *open_prep_read(const char *fname, long *size)
+{
+	FILE *f = fopen(fname, "rb");
+	if (!f) {
+		fprintf(stderr, "fopen %s: ", fname);
+		perror("");
+		exit(1);
+	}
+	if (*size <= 0) {
+		fseek(f, 0, SEEK_END);
+		*size = ftell(f);
+		fseek(f, 0, SEEK_SET);
+	}
+	if (*size <= 0) {
+		fprintf(stderr, "size of %s is %ld\n", fname, *size);
+		exit(1);
+	}
+	return f;
+}
+
 static void usage(const char *argv0)
 {
 	printf("usage:\n"
 		"%s [options]\n"
 		"  -d <ttydevice>      (default /dev/ttyUSB0)\n"
 		"  -r <file> [size]    dump the cart (default 4MB)\n"
-		"  -w <file> [size]    flash the cart (file size)\n"
+		"  -w <file> [size]    program the flash (def. file size)\n"
+		"  -s <file> [size]    simple write (SRAM, etc, def. file size)\n"
 		"  -e <size>           erase (rounds to block size)\n"
-		"  -a <start_address>  cart start address (default 0)\n"
+		"  -a <start_address>  read/write start address (default 0)\n"
 		"  -8                  8bit flash\n"
 		"  -v                  verify written data\n"
 		"  -i                  get info about the flash chip\n"
@@ -480,8 +501,10 @@ int main(int argc, char *argv[])
 	const char *portname = "/dev/ttyUSB0";
 	const char *fname_w = NULL;
 	const char *fname_r = NULL;
+	const char *fname_ws = NULL;
 	long size_w = 0;
 	long size_r = 0;
+	long size_ws = 0;
 	long size_e = 0;
 	long size_v = 0;
 	long len, address_in = 0;
@@ -491,6 +514,7 @@ int main(int argc, char *argv[])
 	int write_step = 2;
 	FILE *f_w = NULL;
 	FILE *f_r = NULL;
+	FILE *f_ws = NULL;
 	uint8_t id[2] = { 0, 0 };
 	uint8_t cmd;
 	uint16_t rv;
@@ -523,6 +547,15 @@ int main(int argc, char *argv[])
 			}
 			continue;
 		}
+		if (!strcmp(argv[arg], "-s")) {
+			fname_ws = getarg(argc, argv, ++arg);
+			if (arg + 1 < argc && argv[arg + 1][0] != '-') {
+				size_ws = strtol(argv[++arg], NULL, 0);
+				if (size_ws <= 0)
+					invarg(argc, argv, arg);
+			}
+			continue;
+		}
 		if (!strcmp(argv[arg], "-a")) {
 			address_in = strtol(getarg(argc, argv, ++arg), NULL, 0);
 			if (address_in < 0 || (address_in & 1))
@@ -555,22 +588,7 @@ int main(int argc, char *argv[])
 		size_r = 0x400000;
 
 	if (fname_w) {
-		f_w = fopen(fname_w, "rb");
-		if (!f_w) {
-			fprintf(stderr, "fopen %s: ", fname_w);
-			perror("");
-			return 1;
-		}
-		if (size_w <= 0) {
-			fseek(f_w, 0, SEEK_END);
-			size_w = ftell(f_w);
-			fseek(f_w, 0, SEEK_SET);
-		}
-		if (size_w <= 0) {
-			fprintf(stderr, "size of %s is %ld\n",
-				fname_w, size_w);
-			return 1;
-		}
+		f_w = open_prep_read(fname_w, &size_w);
 		if (size_e < size_w)
 			size_e = size_w;
 		if (do_verify)
@@ -584,6 +602,9 @@ int main(int argc, char *argv[])
 		return 1;
 	}
 
+	if (fname_ws)
+		f_ws = open_prep_read(fname_ws, &size_ws);
+
 	setup(fd);
 
 	cmd = CMD_RD | PAR_SINGE | PAR_DEV_ID;
@@ -624,7 +645,7 @@ int main(int argc, char *argv[])
 	if (f_w != NULL) {
 		uint8_t b[2];
 		set_delay(fd, 0);
-		printf("writing %ld bytes:\n", size_w);
+		printf("flashing %ld bytes:\n", size_w);
 		for (a = 0; a < size_w; a += write_step) {
 			ssize_t r;
 
@@ -648,6 +669,27 @@ int main(int argc, char *argv[])
 		rewind(f_w);
 		set_delay(fd, 1);
 	}
+	if (f_ws != NULL) {
+		printf("writing %ld bytes:\n", size_ws);
+		for (a = 0; a < size_ws; a += write_step) {
+			uint16_t b = 0xffff;
+			ssize_t r;
+
+			len = min(size_ws - a, write_step);
+			r = fread(&b, 1, len, f_ws);
+			if (r != len) {
+				perror("\nfread");
+				return 1;
+			}
+			if (write_step == 2)
+				b = htons(b);
+			io->write_bus(fd, address_in + a, b);
+
+			if (!(a & 0x3ff))
+				print_progress(a, size_ws);
+		}
+		print_progress(a, size_ws);
+	}
 
 	if (fname_r || size_v) {
 		long blks, blks_v, done, verify_diff = 0;