X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/b811cc51f9a21324dc7589d1254e767374488a20..6658905f18a1eebc148836f26c731dea9c1377dc:/linux/flasher.c

diff --git a/linux/flasher.c b/linux/flasher.c
new file mode 100644
index 00000000..05f31249
--- /dev/null
+++ b/linux/flasher.c
@@ -0,0 +1,166 @@
+#include <usb.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <strings.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+
+#include "translate.h"
+#include "../winsrc/prox.h"
+#include "proxmark3.h"
+
+static DWORD ExpectedAddr;
+static BYTE QueuedToSend[256];
+static BOOL AllWritten;
+
+static void FlushPrevious(void)
+{
+	UsbCommand c;
+	memset(&c, 0, sizeof(c));
+
+	printf("expected = %08x flush, ", ExpectedAddr);
+
+	int i;
+	for(i = 0; i < 240; i += 48) {
+		c.cmd = CMD_SETUP_WRITE;
+		memcpy(c.d.asBytes, QueuedToSend+i, 48);
+		c.ext1 = (i/4);
+		SendCommand(&c, TRUE);
+	}
+
+	c.cmd = CMD_FINISH_WRITE;
+	c.ext1 = (ExpectedAddr-1) & (~255);
+	printf("c.ext1 = %08x\r", c.ext1);
+	memcpy(c.d.asBytes, QueuedToSend+240, 16);
+	SendCommand(&c, TRUE);
+
+	AllWritten = TRUE;
+}
+
+static void GotByte(DWORD where, BYTE which)
+{
+	AllWritten = FALSE;
+
+	if(where != ExpectedAddr) {
+		printf("bad: got at %08x, expected at %08x\n", where, ExpectedAddr);
+		exit(-1);
+	}
+	QueuedToSend[where & 255] = which;
+	ExpectedAddr++;
+
+	if((where & 255) == 255) {
+		// we have completed a full page
+		FlushPrevious();
+	}
+}
+
+static int HexVal(int c)
+{
+	c = tolower(c);
+	if(c >= '0' && c <= '9') {
+		return c - '0';
+	} else if(c >= 'a' && c <= 'f') {
+		return (c - 'a') + 10;
+	} else {
+		printf("bad hex digit '%c'\n", c);
+		exit(-1);
+	}
+}
+
+static BYTE HexByte(char *s)
+{
+	return (HexVal(s[0]) << 4) | HexVal(s[1]);
+}
+
+static void LoadFlashFromSRecords(char *file, int addr)
+{
+	ExpectedAddr = addr;
+
+	FILE *f = fopen(file, "r");
+	if(!f) {
+		printf("couldn't open file\n");
+		exit(-1);
+	}
+
+	char line[512];
+	while(fgets(line, sizeof(line), f)) {
+		if(memcmp(line, "S3", 2)==0) {
+			char *s = line + 2;
+			int len = HexByte(s) - 5;
+			s += 2;
+
+			char addrStr[9];
+			memcpy(addrStr, s, 8);
+			addrStr[8] = '\0';
+			DWORD addr;
+			sscanf(addrStr, "%x", &addr);
+			s += 8;
+
+			int i;
+			for(i = 0; i < len; i++) {
+				while((addr+i) > ExpectedAddr) {
+					GotByte(ExpectedAddr, 0xff);
+				}
+				GotByte(addr+i, HexByte(s));
+				s += 2;
+			}
+		}
+	}
+
+	if(!AllWritten) FlushPrevious();
+
+	fclose(f);
+	printf("\ndone.\n");
+}
+
+int main(int argc, char **argv) {
+	unsigned int addr = 0;
+	UsbCommand c;
+
+	if (argc != 3) {
+		fprintf(stderr,"Usage: %s {bootrom|os|fpga} image.s19\n", argv[0]);
+		exit(EXIT_FAILURE);
+	}
+
+	if (!strcmp(argv[1],"bootrom")) {
+		addr = 0;
+	} else if (!strcmp(argv[1],"os")) {
+		addr = 0x10000;
+	} else if (!strcmp(argv[1],"fpga")) {
+		addr = 0x2000;
+	} else {
+		fprintf(stderr,"Unknown action '%s'!\n", argv[1]);
+		exit(EXIT_FAILURE);
+	}
+
+	usb_init();
+
+	fprintf(stderr,"Waiting for Proxmark to appear on USB...\n");
+	while(!(devh=OpenProxmark(0))) { sleep(1); }
+	fprintf(stderr,"Found...\n");
+
+	fprintf(stderr,"Entering flash-mode...\n");
+	bzero(&c, sizeof(c));
+	c.cmd = CMD_START_FLASH;
+	SendCommand(&c, FALSE);
+	CloseProxmark();
+	sleep(1);
+
+	fprintf(stderr,"Waiting for Proxmark to reappear on USB...\n");
+	while(!(devh=OpenProxmark(0))) { sleep(1); }
+	fprintf(stderr,"Found...\n");
+
+	LoadFlashFromSRecords(argv[2], addr);
+
+	bzero(&c, sizeof(c));
+	c.cmd = CMD_HARDWARE_RESET;
+	SendCommand(&c, FALSE);
+
+	CloseProxmark();
+
+	fprintf(stderr,"Have a nice day!\n");
+
+	return 0;
+}