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-rw-r--r--common/cmd_load.c1113
1 files changed, 0 insertions, 1113 deletions
diff --git a/common/cmd_load.c b/common/cmd_load.c
deleted file mode 100644
index 0aa7937..0000000
--- a/common/cmd_load.c
+++ /dev/null
@@ -1,1113 +0,0 @@
-/*
- * (C) Copyright 2000-2004
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-/*
- * Serial up- and download support
- */
-#include <common.h>
-#include <command.h>
-#include <console.h>
-#include <s_record.h>
-#include <net.h>
-#include <exports.h>
-#include <xyzModem.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#if defined(CONFIG_CMD_LOADB)
-static ulong load_serial_ymodem(ulong offset, int mode);
-#endif
-
-#if defined(CONFIG_CMD_LOADS)
-static ulong load_serial(long offset);
-static int read_record(char *buf, ulong len);
-# if defined(CONFIG_CMD_SAVES)
-static int save_serial(ulong offset, ulong size);
-static int write_record(char *buf);
-#endif
-
-static int do_echo = 1;
-#endif
-
-/* -------------------------------------------------------------------- */
-
-#if defined(CONFIG_CMD_LOADS)
-static int do_load_serial(cmd_tbl_t *cmdtp, int flag, int argc,
- char * const argv[])
-{
- long offset = 0;
- ulong addr;
- int i;
- char *env_echo;
- int rcode = 0;
-#ifdef CONFIG_SYS_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 CONFIG_SYS_LOADS_BAUD_CHANGE
- if (argc >= 2) {
- offset = simple_strtol(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 /* ! CONFIG_SYS_LOADS_BAUD_CHANGE */
- if (argc == 2) {
- offset = simple_strtol(argv[1], NULL, 16);
- }
-#endif /* CONFIG_SYS_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 CONFIG_SYS_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(long 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 */
- 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;
-#ifndef CONFIG_SYS_NO_FLASH
- if (addr2info(store_addr)) {
- int rc;
-
- rc = flash_write((char *)binbuf,store_addr,binlen);
- if (rc != 0) {
- flash_perror(rc);
- return (~0);
- }
- } else
-#endif
- {
- 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);
- setenv_hex("filesize", size);
- 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->getc != getc) {
- if (ctrlc()) {
- return (-1);
- }
- }
- }
-
- /* line too long - truncate */
- *p = '\0';
- return (p - buf);
-}
-
-#if defined(CONFIG_CMD_SAVES)
-
-int do_save_serial (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
-{
- ulong offset = 0;
- ulong size = 0;
-#ifdef CONFIG_SYS_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 CONFIG_SYS_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 /* ! CONFIG_SYS_LOADS_BAUD_CHANGE */
- if (argc == 3) {
- size = simple_strtoul(argv[2], NULL, 16);
- }
-#endif /* CONFIG_SYS_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 CONFIG_SYS_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
-
-#endif
-
-
-#if defined(CONFIG_CMD_LOADB)
-/*
- * loadb command (load binary) included
- */
-#define XON_CHAR 17
-#define XOFF_CHAR 19
-#define START_CHAR 0x01
-#define ETX_CHAR 0x03
-#define END_CHAR 0x0D
-#define SPACE 0x20
-#define K_ESCAPE 0x23
-#define SEND_TYPE 'S'
-#define DATA_TYPE 'D'
-#define ACK_TYPE 'Y'
-#define NACK_TYPE 'N'
-#define BREAK_TYPE 'B'
-#define tochar(x) ((char) (((x) + SPACE) & 0xff))
-#define untochar(x) ((int) (((x) - SPACE) & 0xff))
-
-static void set_kerm_bin_mode(unsigned long *);
-static int k_recv(void);
-static ulong load_serial_bin(ulong offset);
-
-
-static char his_eol; /* character he needs at end of packet */
-static int his_pad_count; /* number of pad chars he needs */
-static char his_pad_char; /* pad chars he needs */
-static char his_quote; /* quote chars he'll use */
-
-static int do_load_serial_bin(cmd_tbl_t *cmdtp, int flag, int argc,
- char * const argv[])
-{
- ulong offset = 0;
- ulong addr;
- int load_baudrate, current_baudrate;
- int rcode = 0;
- char *s;
-
- /* pre-set offset from CONFIG_SYS_LOAD_ADDR */
- offset = CONFIG_SYS_LOAD_ADDR;
-
- /* pre-set offset from $loadaddr */
- if ((s = getenv("loadaddr")) != NULL) {
- offset = simple_strtoul(s, NULL, 16);
- }
-
- load_baudrate = current_baudrate = gd->baudrate;
-
- 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;
- }
- }
-
- if (strcmp(argv[0],"loady")==0) {
- printf("## Ready for binary (ymodem) download "
- "to 0x%08lX at %d bps...\n",
- offset,
- load_baudrate);
-
- addr = load_serial_ymodem(offset, xyzModem_ymodem);
-
- } else if (strcmp(argv[0],"loadx")==0) {
- printf("## Ready for binary (xmodem) download "
- "to 0x%08lX at %d bps...\n",
- offset,
- load_baudrate);
-
- addr = load_serial_ymodem(offset, xyzModem_xmodem);
-
- } else {
-
- printf("## Ready for binary (kermit) download "
- "to 0x%08lX at %d bps...\n",
- offset,
- load_baudrate);
- addr = load_serial_bin(offset);
-
- if (addr == ~0) {
- load_addr = 0;
- printf("## Binary (kermit) download aborted\n");
- rcode = 1;
- } else {
- printf("## Start Addr = 0x%08lX\n", addr);
- load_addr = addr;
- }
- }
- 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;
- }
- }
-
- return rcode;
-}
-
-
-static ulong load_serial_bin(ulong offset)
-{
- int size, i;
-
- set_kerm_bin_mode((ulong *) offset);
- size = k_recv();
-
- /*
- * 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);
- }
-
- flush_cache(offset, size);
-
- printf("## Total Size = 0x%08x = %d Bytes\n", size, size);
- setenv_hex("filesize", size);
-
- return offset;
-}
-
-static void send_pad(void)
-{
- int count = his_pad_count;
-
- while (count-- > 0)
- putc(his_pad_char);
-}
-
-/* converts escaped kermit char to binary char */
-static char ktrans(char in)
-{
- if ((in & 0x60) == 0x40) {
- return (char) (in & ~0x40);
- } else if ((in & 0x7f) == 0x3f) {
- return (char) (in | 0x40);
- } else
- return in;
-}
-
-static int chk1(char *buffer)
-{
- int total = 0;
-
- while (*buffer) {
- total += *buffer++;
- }
- return (int) ((total + ((total >> 6) & 0x03)) & 0x3f);
-}
-
-static void s1_sendpacket(char *packet)
-{
- send_pad();
- while (*packet) {
- putc(*packet++);
- }
-}
-
-static char a_b[24];
-static void send_ack(int n)
-{
- a_b[0] = START_CHAR;
- a_b[1] = tochar(3);
- a_b[2] = tochar(n);
- a_b[3] = ACK_TYPE;
- a_b[4] = '\0';
- a_b[4] = tochar(chk1(&a_b[1]));
- a_b[5] = his_eol;
- a_b[6] = '\0';
- s1_sendpacket(a_b);
-}
-
-static void send_nack(int n)
-{
- a_b[0] = START_CHAR;
- a_b[1] = tochar(3);
- a_b[2] = tochar(n);
- a_b[3] = NACK_TYPE;
- a_b[4] = '\0';
- a_b[4] = tochar(chk1(&a_b[1]));
- a_b[5] = his_eol;
- a_b[6] = '\0';
- s1_sendpacket(a_b);
-}
-
-
-static void (*os_data_init)(void);
-static void (*os_data_char)(char new_char);
-static int os_data_state, os_data_state_saved;
-static char *os_data_addr, *os_data_addr_saved;
-static char *bin_start_address;
-
-static void bin_data_init(void)
-{
- os_data_state = 0;
- os_data_addr = bin_start_address;
-}
-
-static void os_data_save(void)
-{
- os_data_state_saved = os_data_state;
- os_data_addr_saved = os_data_addr;
-}
-
-static void os_data_restore(void)
-{
- os_data_state = os_data_state_saved;
- os_data_addr = os_data_addr_saved;
-}
-
-static void bin_data_char(char new_char)
-{
- switch (os_data_state) {
- case 0: /* data */
- *os_data_addr++ = new_char;
- break;
- }
-}
-
-static void set_kerm_bin_mode(unsigned long *addr)
-{
- bin_start_address = (char *) addr;
- os_data_init = bin_data_init;
- os_data_char = bin_data_char;
-}
-
-
-/* k_data_* simply handles the kermit escape translations */
-static int k_data_escape, k_data_escape_saved;
-static void k_data_init(void)
-{
- k_data_escape = 0;
- os_data_init();
-}
-
-static void k_data_save(void)
-{
- k_data_escape_saved = k_data_escape;
- os_data_save();
-}
-
-static void k_data_restore(void)
-{
- k_data_escape = k_data_escape_saved;
- os_data_restore();
-}
-
-static void k_data_char(char new_char)
-{
- if (k_data_escape) {
- /* last char was escape - translate this character */
- os_data_char(ktrans(new_char));
- k_data_escape = 0;
- } else {
- if (new_char == his_quote) {
- /* this char is escape - remember */
- k_data_escape = 1;
- } else {
- /* otherwise send this char as-is */
- os_data_char(new_char);
- }
- }
-}
-
-#define SEND_DATA_SIZE 20
-static char send_parms[SEND_DATA_SIZE];
-static char *send_ptr;
-
-/* handle_send_packet interprits the protocol info and builds and
- sends an appropriate ack for what we can do */
-static void handle_send_packet(int n)
-{
- int length = 3;
- int bytes;
-
- /* initialize some protocol parameters */
- his_eol = END_CHAR; /* default end of line character */
- his_pad_count = 0;
- his_pad_char = '\0';
- his_quote = K_ESCAPE;
-
- /* ignore last character if it filled the buffer */
- if (send_ptr == &send_parms[SEND_DATA_SIZE - 1])
- --send_ptr;
- bytes = send_ptr - send_parms; /* how many bytes we'll process */
- do {
- if (bytes-- <= 0)
- break;
- /* handle MAXL - max length */
- /* ignore what he says - most I'll take (here) is 94 */
- a_b[++length] = tochar(94);
- if (bytes-- <= 0)
- break;
- /* handle TIME - time you should wait for my packets */
- /* ignore what he says - don't wait for my ack longer than 1 second */
- a_b[++length] = tochar(1);
- if (bytes-- <= 0)
- break;
- /* handle NPAD - number of pad chars I need */
- /* remember what he says - I need none */
- his_pad_count = untochar(send_parms[2]);
- a_b[++length] = tochar(0);
- if (bytes-- <= 0)
- break;
- /* handle PADC - pad chars I need */
- /* remember what he says - I need none */
- his_pad_char = ktrans(send_parms[3]);
- a_b[++length] = 0x40; /* He should ignore this */
- if (bytes-- <= 0)
- break;
- /* handle EOL - end of line he needs */
- /* remember what he says - I need CR */
- his_eol = untochar(send_parms[4]);
- a_b[++length] = tochar(END_CHAR);
- if (bytes-- <= 0)
- break;
- /* handle QCTL - quote control char he'll use */
- /* remember what he says - I'll use '#' */
- his_quote = send_parms[5];
- a_b[++length] = '#';
- if (bytes-- <= 0)
- break;
- /* handle QBIN - 8-th bit prefixing */
- /* ignore what he says - I refuse */
- a_b[++length] = 'N';
- if (bytes-- <= 0)
- break;
- /* handle CHKT - the clock check type */
- /* ignore what he says - I do type 1 (for now) */
- a_b[++length] = '1';
- if (bytes-- <= 0)
- break;
- /* handle REPT - the repeat prefix */
- /* ignore what he says - I refuse (for now) */
- a_b[++length] = 'N';
- if (bytes-- <= 0)
- break;
- /* handle CAPAS - the capabilities mask */
- /* ignore what he says - I only do long packets - I don't do windows */
- a_b[++length] = tochar(2); /* only long packets */
- a_b[++length] = tochar(0); /* no windows */
- a_b[++length] = tochar(94); /* large packet msb */
- a_b[++length] = tochar(94); /* large packet lsb */
- } while (0);
-
- a_b[0] = START_CHAR;
- a_b[1] = tochar(length);
- a_b[2] = tochar(n);
- a_b[3] = ACK_TYPE;
- a_b[++length] = '\0';
- a_b[length] = tochar(chk1(&a_b[1]));
- a_b[++length] = his_eol;
- a_b[++length] = '\0';
- s1_sendpacket(a_b);
-}
-
-/* k_recv receives a OS Open image file over kermit line */
-static int k_recv(void)
-{
- char new_char;
- char k_state, k_state_saved;
- int sum;
- int done;
- int length;
- int n, last_n;
- int len_lo, len_hi;
-
- /* initialize some protocol parameters */
- his_eol = END_CHAR; /* default end of line character */
- his_pad_count = 0;
- his_pad_char = '\0';
- his_quote = K_ESCAPE;
-
- /* initialize the k_recv and k_data state machine */
- done = 0;
- k_state = 0;
- k_data_init();
- k_state_saved = k_state;
- k_data_save();
- n = 0; /* just to get rid of a warning */
- last_n = -1;
-
- /* expect this "type" sequence (but don't check):
- S: send initiate
- F: file header
- D: data (multiple)
- Z: end of file
- B: break transmission
- */
-
- /* enter main loop */
- while (!done) {
- /* set the send packet pointer to begining of send packet parms */
- send_ptr = send_parms;
-
- /* With each packet, start summing the bytes starting with the length.
- Save the current sequence number.
- Note the type of the packet.
- If a character less than SPACE (0x20) is received - error.
- */
-
-#if 0
- /* OLD CODE, Prior to checking sequence numbers */
- /* first have all state machines save current states */
- k_state_saved = k_state;
- k_data_save ();
-#endif
-
- /* get a packet */
- /* wait for the starting character or ^C */
- for (;;) {
- switch (getc ()) {
- case START_CHAR: /* start packet */
- goto START;
- case ETX_CHAR: /* ^C waiting for packet */
- return (0);
- default:
- ;
- }
- }
-START:
- /* get length of packet */
- sum = 0;
- new_char = getc();
- if ((new_char & 0xE0) == 0)
- goto packet_error;
- sum += new_char & 0xff;
- length = untochar(new_char);
- /* get sequence number */
- new_char = getc();
- if ((new_char & 0xE0) == 0)
- goto packet_error;
- sum += new_char & 0xff;
- n = untochar(new_char);
- --length;
-
- /* NEW CODE - check sequence numbers for retried packets */
- /* Note - this new code assumes that the sequence number is correctly
- * received. Handling an invalid sequence number adds another layer
- * of complexity that may not be needed - yet! At this time, I'm hoping
- * that I don't need to buffer the incoming data packets and can write
- * the data into memory in real time.
- */
- if (n == last_n) {
- /* same sequence number, restore the previous state */
- k_state = k_state_saved;
- k_data_restore();
- } else {
- /* new sequence number, checkpoint the download */
- last_n = n;
- k_state_saved = k_state;
- k_data_save();
- }
- /* END NEW CODE */
-
- /* get packet type */
- new_char = getc();
- if ((new_char & 0xE0) == 0)
- goto packet_error;
- sum += new_char & 0xff;
- k_state = new_char;
- --length;
- /* check for extended length */
- if (length == -2) {
- /* (length byte was 0, decremented twice) */
- /* get the two length bytes */
- new_char = getc();
- if ((new_char & 0xE0) == 0)
- goto packet_error;
- sum += new_char & 0xff;
- len_hi = untochar(new_char);
- new_char = getc();
- if ((new_char & 0xE0) == 0)
- goto packet_error;
- sum += new_char & 0xff;
- len_lo = untochar(new_char);
- length = len_hi * 95 + len_lo;
- /* check header checksum */
- new_char = getc();
- if ((new_char & 0xE0) == 0)
- goto packet_error;
- if (new_char != tochar((sum + ((sum >> 6) & 0x03)) & 0x3f))
- goto packet_error;
- sum += new_char & 0xff;
-/* --length; */ /* new length includes only data and block check to come */
- }
- /* bring in rest of packet */
- while (length > 1) {
- new_char = getc();
- if ((new_char & 0xE0) == 0)
- goto packet_error;
- sum += new_char & 0xff;
- --length;
- if (k_state == DATA_TYPE) {
- /* pass on the data if this is a data packet */
- k_data_char (new_char);
- } else if (k_state == SEND_TYPE) {
- /* save send pack in buffer as is */
- *send_ptr++ = new_char;
- /* if too much data, back off the pointer */
- if (send_ptr >= &send_parms[SEND_DATA_SIZE])
- --send_ptr;
- }
- }
- /* get and validate checksum character */
- new_char = getc();
- if ((new_char & 0xE0) == 0)
- goto packet_error;
- if (new_char != tochar((sum + ((sum >> 6) & 0x03)) & 0x3f))
- goto packet_error;
- /* get END_CHAR */
- new_char = getc();
- if (new_char != END_CHAR) {
- packet_error:
- /* restore state machines */
- k_state = k_state_saved;
- k_data_restore();
- /* send a negative acknowledge packet in */
- send_nack(n);
- } else if (k_state == SEND_TYPE) {
- /* crack the protocol parms, build an appropriate ack packet */
- handle_send_packet(n);
- } else {
- /* send simple acknowledge packet in */
- send_ack(n);
- /* quit if end of transmission */
- if (k_state == BREAK_TYPE)
- done = 1;
- }
- }
- return ((ulong) os_data_addr - (ulong) bin_start_address);
-}
-
-static int getcxmodem(void) {
- if (tstc())
- return (getc());
- return -1;
-}
-static ulong load_serial_ymodem(ulong offset, int mode)
-{
- int size;
- int err;
- int res;
- connection_info_t info;
- char ymodemBuf[1024];
- ulong store_addr = ~0;
- ulong addr = 0;
-
- size = 0;
- info.mode = mode;
- res = xyzModem_stream_open(&info, &err);
- if (!res) {
-
- while ((res =
- xyzModem_stream_read(ymodemBuf, 1024, &err)) > 0) {
- store_addr = addr + offset;
- size += res;
- addr += res;
-#ifndef CONFIG_SYS_NO_FLASH
- if (addr2info(store_addr)) {
- int rc;
-
- rc = flash_write((char *) ymodemBuf,
- store_addr, res);
- if (rc != 0) {
- flash_perror (rc);
- return (~0);
- }
- } else
-#endif
- {
- memcpy((char *)(store_addr), ymodemBuf,
- res);
- }
-
- }
- } else {
- printf("%s\n", xyzModem_error(err));
- }
-
- xyzModem_stream_close(&err);
- xyzModem_stream_terminate(false, &getcxmodem);
-
-
- flush_cache(offset, size);
-
- printf("## Total Size = 0x%08x = %d Bytes\n", size, size);
- setenv_hex("filesize", size);
-
- return offset;
-}
-
-#endif
-
-/* -------------------------------------------------------------------- */
-
-#if defined(CONFIG_CMD_LOADS)
-
-#ifdef CONFIG_SYS_LOADS_BAUD_CHANGE
-U_BOOT_CMD(
- loads, 3, 0, do_load_serial,
- "load S-Record file over serial line",
- "[ off ] [ baud ]\n"
- " - load S-Record file over serial line"
- " with offset 'off' and baudrate 'baud'"
-);
-
-#else /* ! CONFIG_SYS_LOADS_BAUD_CHANGE */
-U_BOOT_CMD(
- loads, 2, 0, do_load_serial,
- "load S-Record file over serial line",
- "[ off ]\n"
- " - load S-Record file over serial line with offset 'off'"
-);
-#endif /* CONFIG_SYS_LOADS_BAUD_CHANGE */
-
-/*
- * SAVES always requires LOADS support, but not vice versa
- */
-
-
-#if defined(CONFIG_CMD_SAVES)
-#ifdef CONFIG_SYS_LOADS_BAUD_CHANGE
-U_BOOT_CMD(
- saves, 4, 0, do_save_serial,
- "save S-Record file over serial line",
- "[ off ] [size] [ baud ]\n"
- " - save S-Record file over serial line"
- " with offset 'off', size 'size' and baudrate 'baud'"
-);
-#else /* ! CONFIG_SYS_LOADS_BAUD_CHANGE */
-U_BOOT_CMD(
- saves, 3, 0, do_save_serial,
- "save S-Record file over serial line",
- "[ off ] [size]\n"
- " - save S-Record file over serial line with offset 'off' and size 'size'"
-);
-#endif /* CONFIG_SYS_LOADS_BAUD_CHANGE */
-#endif /* CONFIG_CMD_SAVES */
-#endif /* CONFIG_CMD_LOADS */
-
-
-#if defined(CONFIG_CMD_LOADB)
-U_BOOT_CMD(
- loadb, 3, 0, do_load_serial_bin,
- "load binary file over serial line (kermit mode)",
- "[ off ] [ baud ]\n"
- " - load binary file over serial line"
- " with offset 'off' and baudrate 'baud'"
-);
-
-U_BOOT_CMD(
- loadx, 3, 0, do_load_serial_bin,
- "load binary file over serial line (xmodem mode)",
- "[ off ] [ baud ]\n"
- " - load binary file over serial line"
- " with offset 'off' and baudrate 'baud'"
-);
-
-U_BOOT_CMD(
- loady, 3, 0, do_load_serial_bin,
- "load binary file over serial line (ymodem mode)",
- "[ off ] [ baud ]\n"
- " - load binary file over serial line"
- " with offset 'off' and baudrate 'baud'"
-);
-
-#endif /* CONFIG_CMD_LOADB */
-
-/* -------------------------------------------------------------------- */
-
-#if defined(CONFIG_CMD_HWFLOW)
-int do_hwflow(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
-{
- extern int hwflow_onoff(int);
-
- if (argc == 2) {
- if (strcmp(argv[1], "off") == 0)
- hwflow_onoff(-1);
- else
- if (strcmp(argv[1], "on") == 0)
- hwflow_onoff(1);
- else
- return CMD_RET_USAGE;
- }
- printf("RTS/CTS hardware flow control: %s\n", hwflow_onoff(0) ? "on" : "off");
- return 0;
-}
-
-/* -------------------------------------------------------------------- */
-
-U_BOOT_CMD(
- hwflow, 2, 0, do_hwflow,
- "turn RTS/CTS hardware flow control in serial line on/off",
- "[on|off]"
-);
-
-#endif /* CONFIG_CMD_HWFLOW */