diff options
Diffstat (limited to 'common/cmd_load.c')
| -rw-r--r-- | common/cmd_load.c | 1113 |
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 */ |