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authorSascha Hauer <s.hauer@pengutronix.de>2007-07-05 18:02:13 +0200
committerSascha Hauer <sha@octopus.labnet.pengutronix.de>2007-07-05 18:02:13 +0200
commit4b07af6730d2811363f158f5175138116038f7b9 (patch)
tree206044270884f80204a2da69e02ca3b6f5803185 /commands/loads.c
parentd08c60e9d77dc0f83946cd702d383451865e66dd (diff)
downloadbarebox-4b07af6730d2811363f158f5175138116038f7b9.tar.gz
svn_rev_643
structure cleanup
Diffstat (limited to 'commands/loads.c')
-rw-r--r--commands/loads.c423
1 files changed, 423 insertions, 0 deletions
diff --git a/commands/loads.c b/commands/loads.c
new file mode 100644
index 0000000..f0254bc
--- /dev/null
+++ b/commands/loads.c
@@ -0,0 +1,423 @@
+/*
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * Serial up- and download support
+ */
+#include <common.h>
+#include <command.h>
+#include <s_record.h>
+#include <net.h>
+#include <exports.h>
+#include <xyzModem.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static ulong load_serial (ulong offset);
+static int read_record (char *buf, ulong len);
+static int do_echo = 1;
+
+# if (CONFIG_COMMANDS & CFG_CMD_SAVES)
+static int save_serial (ulong offset, ulong size);
+static int write_record (char *buf);
+# endif /* CFG_CMD_SAVES */
+
+int do_load_serial (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ ulong offset = 0;
+ ulong addr;
+ int i;
+ char *env_echo;
+ int rcode = 0;
+#ifdef CFG_LOADS_BAUD_CHANGE
+ int load_baudrate, current_baudrate;
+
+ load_baudrate = current_baudrate = gd->baudrate;
+#endif
+
+ if (((env_echo = getenv("loads_echo")) != NULL) && (*env_echo == '1')) {
+ do_echo = 1;
+ } else {
+ do_echo = 0;
+ }
+
+#ifdef CFG_LOADS_BAUD_CHANGE
+ if (argc >= 2) {
+ offset = simple_strtoul(argv[1], NULL, 16);
+ }
+ if (argc == 3) {
+ load_baudrate = (int)simple_strtoul(argv[2], NULL, 10);
+
+ /* default to current baudrate */
+ if (load_baudrate == 0)
+ load_baudrate = current_baudrate;
+ }
+ if (load_baudrate != current_baudrate) {
+ printf ("## Switch baudrate to %d bps and press ENTER ...\n",
+ load_baudrate);
+ udelay(50000);
+ gd->baudrate = load_baudrate;
+ serial_setbrg ();
+ udelay(50000);
+ for (;;) {
+ if (getc() == '\r')
+ break;
+ }
+ }
+#else /* ! CFG_LOADS_BAUD_CHANGE */
+ if (argc == 2) {
+ offset = simple_strtoul(argv[1], NULL, 16);
+ }
+#endif /* CFG_LOADS_BAUD_CHANGE */
+
+ printf ("## Ready for S-Record download ...\n");
+
+ addr = load_serial (offset);
+
+ /*
+ * Gather any trailing characters (for instance, the ^D which
+ * is sent by 'cu' after sending a file), and give the
+ * box some time (100 * 1 ms)
+ */
+ for (i=0; i<100; ++i) {
+ if (tstc()) {
+ (void) getc();
+ }
+ udelay(1000);
+ }
+
+ if (addr == ~0) {
+ printf ("## S-Record download aborted\n");
+ rcode = 1;
+ } else {
+ printf ("## Start Addr = 0x%08lX\n", addr);
+ load_addr = addr;
+ }
+
+#ifdef CFG_LOADS_BAUD_CHANGE
+ if (load_baudrate != current_baudrate) {
+ printf ("## Switch baudrate to %d bps and press ESC ...\n",
+ current_baudrate);
+ udelay (50000);
+ gd->baudrate = current_baudrate;
+ serial_setbrg ();
+ udelay (50000);
+ for (;;) {
+ if (getc() == 0x1B) /* ESC */
+ break;
+ }
+ }
+#endif
+ return rcode;
+}
+
+static ulong
+load_serial (ulong offset)
+{
+ char record[SREC_MAXRECLEN + 1]; /* buffer for one S-Record */
+ char binbuf[SREC_MAXBINLEN]; /* buffer for binary data */
+ int binlen; /* no. of data bytes in S-Rec. */
+ int type; /* return code for record type */
+ ulong addr; /* load address from S-Record */
+ ulong size; /* number of bytes transferred */
+ char buf[32];
+ ulong store_addr;
+ ulong start_addr = ~0;
+ ulong end_addr = 0;
+ int line_count = 0;
+
+ while (read_record(record, SREC_MAXRECLEN + 1) >= 0) {
+ type = srec_decode (record, &binlen, &addr, binbuf);
+
+ if (type < 0) {
+ return (~0); /* Invalid S-Record */
+ }
+
+ switch (type) {
+ case SREC_DATA2:
+ case SREC_DATA3:
+ case SREC_DATA4:
+ store_addr = addr + offset;
+ memcpy ((char *)(store_addr), binbuf, binlen);
+ if ((store_addr) < start_addr)
+ start_addr = store_addr;
+ if ((store_addr + binlen - 1) > end_addr)
+ end_addr = store_addr + binlen - 1;
+ break;
+ case SREC_END2:
+ case SREC_END3:
+ case SREC_END4:
+ udelay (10000);
+ size = end_addr - start_addr + 1;
+ printf ("\n"
+ "## First Load Addr = 0x%08lX\n"
+ "## Last Load Addr = 0x%08lX\n"
+ "## Total Size = 0x%08lX = %ld Bytes\n",
+ start_addr, end_addr, size, size
+ );
+ flush_cache (start_addr, size);
+ sprintf(buf, "%lX", size);
+ setenv("filesize", buf);
+ return (addr);
+ case SREC_START:
+ break;
+ default:
+ break;
+ }
+ if (!do_echo) { /* print a '.' every 100 lines */
+ if ((++line_count % 100) == 0)
+ putc ('.');
+ }
+ }
+
+ return (~0); /* Download aborted */
+}
+
+static int
+read_record (char *buf, ulong len)
+{
+ char *p;
+ char c;
+
+ --len; /* always leave room for terminating '\0' byte */
+
+ for (p=buf; p < buf+len; ++p) {
+ c = getc(); /* read character */
+ if (do_echo)
+ putc (c); /* ... and echo it */
+
+ switch (c) {
+ case '\r':
+ case '\n':
+ *p = '\0';
+ return (p - buf);
+ case '\0':
+ case 0x03: /* ^C - Control C */
+ return (-1);
+ default:
+ *p = c;
+ }
+
+ /* Check for the console hangup (if any different from serial) */
+ if (gd->jt[XF_getc] != getc) {
+ if (ctrlc()) {
+ return (-1);
+ }
+ }
+ }
+
+ /* line too long - truncate */
+ *p = '\0';
+ return (p - buf);
+}
+
+#if (CONFIG_COMMANDS & CFG_CMD_SAVES)
+
+int do_save_serial (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ ulong offset = 0;
+ ulong size = 0;
+#ifdef CFG_LOADS_BAUD_CHANGE
+ int save_baudrate, current_baudrate;
+
+ save_baudrate = current_baudrate = gd->baudrate;
+#endif
+
+ if (argc >= 2) {
+ offset = simple_strtoul(argv[1], NULL, 16);
+ }
+#ifdef CFG_LOADS_BAUD_CHANGE
+ if (argc >= 3) {
+ size = simple_strtoul(argv[2], NULL, 16);
+ }
+ if (argc == 4) {
+ save_baudrate = (int)simple_strtoul(argv[3], NULL, 10);
+
+ /* default to current baudrate */
+ if (save_baudrate == 0)
+ save_baudrate = current_baudrate;
+ }
+ if (save_baudrate != current_baudrate) {
+ printf ("## Switch baudrate to %d bps and press ENTER ...\n",
+ save_baudrate);
+ udelay(50000);
+ gd->baudrate = save_baudrate;
+ serial_setbrg ();
+ udelay(50000);
+ for (;;) {
+ if (getc() == '\r')
+ break;
+ }
+ }
+#else /* ! CFG_LOADS_BAUD_CHANGE */
+ if (argc == 3) {
+ size = simple_strtoul(argv[2], NULL, 16);
+ }
+#endif /* CFG_LOADS_BAUD_CHANGE */
+
+ printf ("## Ready for S-Record upload, press ENTER to proceed ...\n");
+ for (;;) {
+ if (getc() == '\r')
+ break;
+ }
+ if(save_serial (offset, size)) {
+ printf ("## S-Record upload aborted\n");
+ } else {
+ printf ("## S-Record upload complete\n");
+ }
+#ifdef CFG_LOADS_BAUD_CHANGE
+ if (save_baudrate != current_baudrate) {
+ printf ("## Switch baudrate to %d bps and press ESC ...\n",
+ (int)current_baudrate);
+ udelay (50000);
+ gd->baudrate = current_baudrate;
+ serial_setbrg ();
+ udelay (50000);
+ for (;;) {
+ if (getc() == 0x1B) /* ESC */
+ break;
+ }
+ }
+#endif
+ return 0;
+}
+
+#define SREC3_START "S0030000FC\n"
+#define SREC3_FORMAT "S3%02X%08lX%s%02X\n"
+#define SREC3_END "S70500000000FA\n"
+#define SREC_BYTES_PER_RECORD 16
+
+static int save_serial (ulong address, ulong count)
+{
+ int i, c, reclen, checksum, length;
+ char *hex = "0123456789ABCDEF";
+ char record[2*SREC_BYTES_PER_RECORD+16]; /* buffer for one S-Record */
+ char data[2*SREC_BYTES_PER_RECORD+1]; /* buffer for hex data */
+
+ reclen = 0;
+ checksum = 0;
+
+ if(write_record(SREC3_START)) /* write the header */
+ return (-1);
+ do {
+ if(count) { /* collect hex data in the buffer */
+ c = *(volatile uchar*)(address + reclen); /* get one byte */
+ checksum += c; /* accumulate checksum */
+ data[2*reclen] = hex[(c>>4)&0x0f];
+ data[2*reclen+1] = hex[c & 0x0f];
+ data[2*reclen+2] = '\0';
+ ++reclen;
+ --count;
+ }
+ if(reclen == SREC_BYTES_PER_RECORD || count == 0) {
+ /* enough data collected for one record: dump it */
+ if(reclen) { /* build & write a data record: */
+ /* address + data + checksum */
+ length = 4 + reclen + 1;
+
+ /* accumulate length bytes into checksum */
+ for(i = 0; i < 2; i++)
+ checksum += (length >> (8*i)) & 0xff;
+
+ /* accumulate address bytes into checksum: */
+ for(i = 0; i < 4; i++)
+ checksum += (address >> (8*i)) & 0xff;
+
+ /* make proper checksum byte: */
+ checksum = ~checksum & 0xff;
+
+ /* output one record: */
+ sprintf(record, SREC3_FORMAT, length, address, data, checksum);
+ if(write_record(record))
+ return (-1);
+ }
+ address += reclen; /* increment address */
+ checksum = 0;
+ reclen = 0;
+ }
+ }
+ while(count);
+ if(write_record(SREC3_END)) /* write the final record */
+ return (-1);
+ return(0);
+}
+
+static int
+write_record (char *buf)
+{
+ char c;
+
+ while((c = *buf++))
+ putc(c);
+
+ /* Check for the console hangup (if any different from serial) */
+
+ if (ctrlc()) {
+ return (-1);
+ }
+ return (0);
+}
+# endif /* CFG_CMD_SAVES */
+
+#ifdef CFG_LOADS_BAUD_CHANGE
+U_BOOT_CMD(
+ loads, 3, 0, do_load_serial,
+ "loads - load S-Record file over serial line\n",
+ "[ off ] [ baud ]\n"
+ " - load S-Record file over serial line"
+ " with offset 'off' and baudrate 'baud'\n"
+);
+
+#else /* ! CFG_LOADS_BAUD_CHANGE */
+U_BOOT_CMD(
+ loads, 2, 0, do_load_serial,
+ "loads - load S-Record file over serial line\n",
+ "[ off ]\n"
+ " - load S-Record file over serial line with offset 'off'\n"
+);
+#endif /* CFG_LOADS_BAUD_CHANGE */
+
+/*
+ * SAVES always requires LOADS support, but not vice versa
+ */
+
+
+#if (CONFIG_COMMANDS & CFG_CMD_SAVES)
+#ifdef CFG_LOADS_BAUD_CHANGE
+U_BOOT_CMD(
+ saves, 4, 0, do_save_serial,
+ "saves - save S-Record file over serial line\n",
+ "[ off ] [size] [ baud ]\n"
+ " - save S-Record file over serial line"
+ " with offset 'off', size 'size' and baudrate 'baud'\n"
+);
+#else /* ! CFG_LOADS_BAUD_CHANGE */
+U_BOOT_CMD(
+ saves, 3, 0, do_save_serial,
+ "saves - save S-Record file over serial line\n",
+ "[ off ] [size]\n"
+ " - save S-Record file over serial line with offset 'off' and size 'size'\n"
+);
+#endif /* CFG_LOADS_BAUD_CHANGE */
+#endif /* CFG_CMD_SAVES */
+