common/spl/spl_ymodem.c

   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 }