xref: /openbmc/u-boot/common/spl/spl_ymodem.c (revision 8495faf5)
1 /*
2  * (C) Copyright 2000-2004
3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4  *
5  * (C) Copyright 2011
6  * Texas Instruments, <www.ti.com>
7  *
8  * Matt Porter <mporter@ti.com>
9  *
10  * See file CREDITS for list of people who contributed to this
11  * project.
12  *
13  * This program is free software; you can redistribute it and/or
14  * modify it under the terms of the GNU General Public License as
15  * published by the Free Software Foundation; either version 2 of
16  * the License, or (at your option) any later version.
17  *
18  * This program is distributed in the hope that it will be useful,
19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21  * GNU General Public License for more details.
22  *
23  * You should have received a copy of the GNU General Public License
24  * along with this program; if not, write to the Free Software
25  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26  * MA 02111-1307 USA
27  */
28 #include <common.h>
29 #include <spl.h>
30 #include <xyzModem.h>
31 #include <asm/u-boot.h>
32 #include <asm/utils.h>
33 
34 #define BUF_SIZE 1024
35 
36 static int getcymodem(void) {
37 	if (tstc())
38 		return (getc());
39 	return -1;
40 }
41 
42 void spl_ymodem_load_image(void)
43 {
44 	int size = 0;
45 	int err;
46 	int res;
47 	int ret;
48 	connection_info_t info;
49 	char buf[BUF_SIZE];
50 	ulong store_addr = ~0;
51 	ulong addr = 0;
52 
53 	info.mode = xyzModem_ymodem;
54 	ret = xyzModem_stream_open(&info, &err);
55 
56 	if (!ret) {
57 		while ((res =
58 			xyzModem_stream_read(buf, BUF_SIZE, &err)) > 0) {
59 			if (addr == 0)
60 				spl_parse_image_header((struct image_header *)buf);
61 			store_addr = addr + spl_image.load_addr;
62 			size += res;
63 			addr += res;
64 			memcpy((char *)(store_addr), buf, res);
65 		}
66 	} else {
67 		printf("spl: ymodem err - %s\n", xyzModem_error(err));
68 		hang();
69 	}
70 
71 	xyzModem_stream_close(&err);
72 	xyzModem_stream_terminate(false, &getcymodem);
73 
74 	printf("Loaded %d bytes\n", size);
75 }
76