From d6a44ec7c9f805fad62b78ade9340e1adab72f4a Mon Sep 17 00:00:00 2001
From: notaz <notasas@gmail.com>
Date: Sun, 7 Sep 2014 21:55:24 +0300
Subject: [PATCH] add progress bar

this thing is slow..
---
 datalink.c | 52 +++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 51 insertions(+), 1 deletion(-)

diff --git a/datalink.c b/datalink.c
index 94e2c6e..a2bdc70 100644
--- a/datalink.c
+++ b/datalink.c
@@ -41,6 +41,7 @@
 
 #define BAUD_RATE 375000
 #define MAX_DATA_SIZE 191
+#define PROGRESS_STEP (4 * 1024)
 
 static int setup(int fd)
 {
@@ -96,6 +97,25 @@ static int setup(int fd)
 	return 0;
 }
 
+static void print_progress(int done, int total)
+{
+	int i, step;
+
+	printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
+	printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"); /* 20 */
+	printf("\b\b\b\b\b\b");
+	printf("%06x/%06x |", done, total);
+
+	step = total / 20;
+	for (i = step; i <= total; i += step)
+		printf("%c", done >= i ? '=' : '-');
+	printf("| %3d%%", done * 100 / total);
+	fflush(stdout);
+
+	if (done == total)
+		printf("\n");
+}
+
 static void dump_pkt(const uint8_t *buf, size_t size, const char *msg)
 {
 	size_t i;
@@ -207,6 +227,8 @@ static int recv_pkt(int fd, uint8_t cmd, uint32_t addr,
 
 static int do_rx(int fd, uint32_t addr, void *buf, size_t size)
 {
+	size_t size_total = size;
+	int progress_bytes = 0;
 	char *cbuf = buf;
 	int ret;
 	int len;
@@ -247,6 +269,12 @@ static int do_rx(int fd, uint32_t addr, void *buf, size_t size)
 		addr += len;
 		cbuf += len;
 		size -= len;
+
+		progress_bytes -= len;
+		if (progress_bytes <= 0 || size == 0) {
+			print_progress(size_total - size, size_total);
+			progress_bytes = PROGRESS_STEP;
+		}
 	}
 
 	return 0;
@@ -254,6 +282,8 @@ static int do_rx(int fd, uint32_t addr, void *buf, size_t size)
 
 static int do_tx(int fd, uint32_t addr, void *buf, size_t size, int exe)
 {
+	int progress_bytes = 0;
+	size_t size_total = size;
 	size_t size_last = size;
 	uint32_t addr_last = addr;
 	char *cbuf = buf;
@@ -284,6 +314,13 @@ static int do_tx(int fd, uint32_t addr, void *buf, size_t size, int exe)
 			addr += len;
 			cbuf += len;
 			size -= len;
+
+			progress_bytes -= len;
+			if (progress_bytes <= 0) {
+				print_progress(size_total - size - size_last,
+					size_total);
+				progress_bytes = PROGRESS_STEP;
+			}
 		}
 	}
 
@@ -298,6 +335,8 @@ static int do_tx(int fd, uint32_t addr, void *buf, size_t size, int exe)
 	if (ret != 0)
 		return ret;
 
+	print_progress(size_total, size_total);
+
 	return 0;
 }
 
@@ -310,7 +349,18 @@ static void usage(const char *argv0)
 		"  tx <addr> <size> <infile> [x]\n"
 		"    <outfile> can be \"/hd/\" for a hexdump\n"
 		"    x instructs to execute uploaded data\n"
-		"    for tx, size 0 asks to use filesize\n", argv0);
+		"    for tx, size 0 asks to use filesize\n\n"
+		"useful regions (addr size):\n"
+		"  0x00000000 0x080000 - BIOS\n"
+		"  0x00180000 0x010000 - Backup-RAM\n"
+		"  0x00200000 0x100000 - Work-RAM-L\n"
+		"  0x05a00000 0x080000 - 68000-RAM\n"
+		"  0x05c00000 0x080000 - VDP1-VRAM\n"
+		"  0x05c80000 0x040000 - VDP1-FB\n"
+		"  0x05e00000 0x080000 - VDP2-VRAM\n"
+		"  0x05f00000 0x001000 - VDP2-CRAM\n"
+		"  0x06000000 0x100000 - Work-RAM-H\n"
+		, argv0);
 	exit(1);
 }
 
-- 
2.39.2