/* * (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 <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 */