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-rw-r--r--common/xyzModem.c993
1 files changed, 548 insertions, 445 deletions
diff --git a/common/xyzModem.c b/common/xyzModem.c
index d1d66e8..a209dfa 100644
--- a/common/xyzModem.c
+++ b/common/xyzModem.c
@@ -69,135 +69,157 @@
#define BSP 0x08
#define NAK 0x15
#define CAN 0x18
-#define EOF 0x1A /* ^Z for DOS officionados */
+#define EOF 0x1A /* ^Z for DOS officionados */
#define USE_YMODEM_LENGTH
/* Data & state local to the protocol */
-static struct {
+static struct
+{
#ifdef REDBOOT
- hal_virtual_comm_table_t* __chan;
+ hal_virtual_comm_table_t *__chan;
#else
- int *__chan;
+ int *__chan;
#endif
- unsigned char pkt[1024], *bufp;
- unsigned char blk,cblk,crc1,crc2;
- unsigned char next_blk; /* Expected block */
- int len, mode, total_retries;
- int total_SOH, total_STX, total_CAN;
- bool crc_mode, at_eof, tx_ack;
+ unsigned char pkt[1024], *bufp;
+ unsigned char blk, cblk, crc1, crc2;
+ unsigned char next_blk; /* Expected block */
+ int len, mode, total_retries;
+ int total_SOH, total_STX, total_CAN;
+ bool crc_mode, at_eof, tx_ack;
#ifdef USE_YMODEM_LENGTH
- unsigned long file_length, read_length;
+ unsigned long file_length, read_length;
#endif
} xyz;
-#define xyzModem_CHAR_TIMEOUT 2000 /* 2 seconds */
+#define xyzModem_CHAR_TIMEOUT 2000 /* 2 seconds */
#define xyzModem_MAX_RETRIES 20
#define xyzModem_MAX_RETRIES_WITH_CRC 10
-#define xyzModem_CAN_COUNT 3 /* Wait for 3 CAN before quitting */
+#define xyzModem_CAN_COUNT 3 /* Wait for 3 CAN before quitting */
-#ifndef REDBOOT /*SB */
+#ifndef REDBOOT /*SB */
typedef int cyg_int32;
-int CYGACC_COMM_IF_GETC_TIMEOUT (char chan,char *c) {
+int
+CYGACC_COMM_IF_GETC_TIMEOUT (char chan, char *c)
+{
#define DELAY 20
- unsigned long counter=0;
- while (!tstc() && (counter < xyzModem_CHAR_TIMEOUT*1000/DELAY)) {
- udelay(DELAY);
- counter++;
- }
- if (tstc()) {
- *c=getc();
- return 1;
- }
- return 0;
+ unsigned long counter = 0;
+ while (!tstc () && (counter < xyzModem_CHAR_TIMEOUT * 1000 / DELAY))
+ {
+ udelay (DELAY);
+ counter++;
+ }
+ if (tstc ())
+ {
+ *c = getc ();
+ return 1;
+ }
+ return 0;
}
-void CYGACC_COMM_IF_PUTC(char x,char y) {
- putc(y);
+void
+CYGACC_COMM_IF_PUTC (char x, char y)
+{
+ putc (y);
}
/* Validate a hex character */
__inline__ static bool
-_is_hex(char c)
+_is_hex (char c)
{
- return (((c >= '0') && (c <= '9')) ||
- ((c >= 'A') && (c <= 'F')) ||
- ((c >= 'a') && (c <= 'f')));
+ return (((c >= '0') && (c <= '9')) ||
+ ((c >= 'A') && (c <= 'F')) || ((c >= 'a') && (c <= 'f')));
}
/* Convert a single hex nibble */
__inline__ static int
-_from_hex(char c)
+_from_hex (char c)
{
- int ret = 0;
-
- if ((c >= '0') && (c <= '9')) {
- ret = (c - '0');
- } else if ((c >= 'a') && (c <= 'f')) {
- ret = (c - 'a' + 0x0a);
- } else if ((c >= 'A') && (c <= 'F')) {
- ret = (c - 'A' + 0x0A);
+ int ret = 0;
+
+ if ((c >= '0') && (c <= '9'))
+ {
+ ret = (c - '0');
+ }
+ else if ((c >= 'a') && (c <= 'f'))
+ {
+ ret = (c - 'a' + 0x0a);
}
- return ret;
+ else if ((c >= 'A') && (c <= 'F'))
+ {
+ ret = (c - 'A' + 0x0A);
+ }
+ return ret;
}
/* Convert a character to lower case */
__inline__ static char
-_tolower(char c)
+_tolower (char c)
{
- if ((c >= 'A') && (c <= 'Z')) {
- c = (c - 'A') + 'a';
+ if ((c >= 'A') && (c <= 'Z'))
+ {
+ c = (c - 'A') + 'a';
}
- return c;
+ return c;
}
/* Parse (scan) a number */
bool
-parse_num(char *s, unsigned long *val, char **es, char *delim)
+parse_num (char *s, unsigned long *val, char **es, char *delim)
{
- bool first = true;
- int radix = 10;
- char c;
- unsigned long result = 0;
- int digit;
-
- while (*s == ' ') s++;
- while (*s) {
- if (first && (s[0] == '0') && (_tolower(s[1]) == 'x')) {
- radix = 16;
- s += 2;
- }
- first = false;
- c = *s++;
- if (_is_hex(c) && ((digit = _from_hex(c)) < radix)) {
- /* Valid digit */
+ bool first = true;
+ int radix = 10;
+ char c;
+ unsigned long result = 0;
+ int digit;
+
+ while (*s == ' ')
+ s++;
+ while (*s)
+ {
+ if (first && (s[0] == '0') && (_tolower (s[1]) == 'x'))
+ {
+ radix = 16;
+ s += 2;
+ }
+ first = false;
+ c = *s++;
+ if (_is_hex (c) && ((digit = _from_hex (c)) < radix))
+ {
+ /* Valid digit */
#ifdef CYGPKG_HAL_MIPS
- /* FIXME: tx49 compiler generates 0x2539018 for MUL which */
- /* isn't any good. */
- if (16 == radix)
- result = result << 4;
- else
- result = 10 * result;
- result += digit;
+ /* FIXME: tx49 compiler generates 0x2539018 for MUL which */
+ /* isn't any good. */
+ if (16 == radix)
+ result = result << 4;
+ else
+ result = 10 * result;
+ result += digit;
#else
- result = (result * radix) + digit;
+ result = (result * radix) + digit;
#endif
- } else {
- if (delim != (char *)0) {
- /* See if this character is one of the delimiters */
- char *dp = delim;
- while (*dp && (c != *dp)) dp++;
- if (*dp) break; /* Found a good delimiter */
- }
- return false; /* Malformatted number */
- }
+ }
+ else
+ {
+ if (delim != (char *) 0)
+ {
+ /* See if this character is one of the delimiters */
+ char *dp = delim;
+ while (*dp && (c != *dp))
+ dp++;
+ if (*dp)
+ break; /* Found a good delimiter */
+ }
+ return false; /* Malformatted number */
+ }
}
- *val = result;
- if (es != (char **)0) {
- *es = s;
+ *val = result;
+ if (es != (char **) 0)
+ {
+ *es = s;
}
- return true;
+ return true;
}
#endif
@@ -211,24 +233,26 @@ parse_num(char *s, unsigned long *val, char **es, char *delim)
* messages.
*/
static int
-zm_dprintf(char *fmt, ...)
+zm_dprintf (char *fmt, ...)
{
- int cur_console;
- va_list args;
+ int cur_console;
+ va_list args;
- va_start(args, fmt);
+ va_start (args, fmt);
#ifdef REDBOOT
- cur_console = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
- CYGACC_CALL_IF_SET_CONSOLE_COMM(1);
+ cur_console =
+ CYGACC_CALL_IF_SET_CONSOLE_COMM
+ (CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
+ CYGACC_CALL_IF_SET_CONSOLE_COMM (1);
#endif
- diag_vprintf(fmt, args);
+ diag_vprintf (fmt, args);
#ifdef REDBOOT
- CYGACC_CALL_IF_SET_CONSOLE_COMM(cur_console);
+ CYGACC_CALL_IF_SET_CONSOLE_COMM (cur_console);
#endif
}
static void
-zm_flush(void)
+zm_flush (void)
{
}
@@ -238,42 +262,43 @@ zm_flush(void)
*/
#define FINAL
#ifdef FINAL
-static char *zm_out = (char *)0x00380000;
-static char *zm_out_start = (char *)0x00380000;
+static char *zm_out = (char *) 0x00380000;
+static char *zm_out_start = (char *) 0x00380000;
#else
static char zm_buf[8192];
-static char *zm_out=zm_buf;
+static char *zm_out = zm_buf;
static char *zm_out_start = zm_buf;
#endif
static int
-zm_dprintf(char *fmt, ...)
+zm_dprintf (char *fmt, ...)
{
- int len;
- va_list args;
+ int len;
+ va_list args;
- va_start(args, fmt);
- len = diag_vsprintf(zm_out, fmt, args);
- zm_out += len;
- return len;
+ va_start (args, fmt);
+ len = diag_vsprintf (zm_out, fmt, args);
+ zm_out += len;
+ return len;
}
static void
-zm_flush(void)
+zm_flush (void)
{
#ifdef REDBOOT
- char *p = zm_out_start;
- while (*p) mon_write_char(*p++);
+ char *p = zm_out_start;
+ while (*p)
+ mon_write_char (*p++);
#endif
- zm_out = zm_out_start;
+ zm_out = zm_out_start;
}
#endif
static void
-zm_dump_buf(void *buf, int len)
+zm_dump_buf (void *buf, int len)
{
#ifdef REDBOOT
- diag_vdump_buf_with_offset(zm_dprintf, buf, len, 0);
+ diag_vdump_buf_with_offset (zm_dprintf, buf, len, 0);
#else
#endif
@@ -283,22 +308,22 @@ static unsigned char zm_buf[2048];
static unsigned char *zm_bp;
static void
-zm_new(void)
+zm_new (void)
{
- zm_bp = zm_buf;
+ zm_bp = zm_buf;
}
static void
-zm_save(unsigned char c)
+zm_save (unsigned char c)
{
- *zm_bp++ = c;
+ *zm_bp++ = c;
}
static void
-zm_dump(int line)
+zm_dump (int line)
{
- zm_dprintf("Packet at line: %d\n", line);
- zm_dump_buf(zm_buf, zm_bp-zm_buf);
+ zm_dprintf ("Packet at line: %d\n", line);
+ zm_dump_buf (zm_buf, zm_bp - zm_buf);
}
#define ZM_DEBUG(x) x
@@ -308,439 +333,517 @@ zm_dump(int line)
/* Wait for the line to go idle */
static void
-xyzModem_flush(void)
+xyzModem_flush (void)
{
- int res;
- char c;
- while (true) {
- res = CYGACC_COMM_IF_GETC_TIMEOUT(*xyz.__chan, &c);
- if (!res) return;
+ int res;
+ char c;
+ while (true)
+ {
+ res = CYGACC_COMM_IF_GETC_TIMEOUT (*xyz.__chan, &c);
+ if (!res)
+ return;
}
}
static int
-xyzModem_get_hdr(void)
+xyzModem_get_hdr (void)
{
- char c;
- int res;
- bool hdr_found = false;
- int i, can_total, hdr_chars;
- unsigned short cksum;
-
- ZM_DEBUG(zm_new());
- /* Find the start of a header */
- can_total = 0;
- hdr_chars = 0;
-
- if (xyz.tx_ack) {
- CYGACC_COMM_IF_PUTC(*xyz.__chan, ACK);
- xyz.tx_ack = false;
+ char c;
+ int res;
+ bool hdr_found = false;
+ int i, can_total, hdr_chars;
+ unsigned short cksum;
+
+ ZM_DEBUG (zm_new ());
+ /* Find the start of a header */
+ can_total = 0;
+ hdr_chars = 0;
+
+ if (xyz.tx_ack)
+ {
+ CYGACC_COMM_IF_PUTC (*xyz.__chan, ACK);
+ xyz.tx_ack = false;
}
- while (!hdr_found) {
- res = CYGACC_COMM_IF_GETC_TIMEOUT(*xyz.__chan, &c);
- ZM_DEBUG(zm_save(c));
- if (res) {
- hdr_chars++;
- switch (c) {
- case SOH:
- xyz.total_SOH++;
- case STX:
- if (c == STX) xyz.total_STX++;
- hdr_found = true;
- break;
- case CAN:
- xyz.total_CAN++;
- ZM_DEBUG(zm_dump(__LINE__));
- if (++can_total == xyzModem_CAN_COUNT) {
- return xyzModem_cancel;
- } else {
- /* Wait for multiple CAN to avoid early quits */
- break;
- }
- case EOT:
- /* EOT only supported if no noise */
- if (hdr_chars == 1) {
- CYGACC_COMM_IF_PUTC(*xyz.__chan, ACK);
- ZM_DEBUG(zm_dprintf("ACK on EOT #%d\n", __LINE__));
- ZM_DEBUG(zm_dump(__LINE__));
- return xyzModem_eof;
- }
- default:
- /* Ignore, waiting for start of header */
- ;
- }
- } else {
- /* Data stream timed out */
- xyzModem_flush(); /* Toss any current input */
- ZM_DEBUG(zm_dump(__LINE__));
- CYGACC_CALL_IF_DELAY_US((cyg_int32)250000);
- return xyzModem_timeout;
- }
+ while (!hdr_found)
+ {
+ res = CYGACC_COMM_IF_GETC_TIMEOUT (*xyz.__chan, &c);
+ ZM_DEBUG (zm_save (c));
+ if (res)
+ {
+ hdr_chars++;
+ switch (c)
+ {
+ case SOH:
+ xyz.total_SOH++;
+ case STX:
+ if (c == STX)
+ xyz.total_STX++;
+ hdr_found = true;
+ break;
+ case CAN:
+ xyz.total_CAN++;
+ ZM_DEBUG (zm_dump (__LINE__));
+ if (++can_total == xyzModem_CAN_COUNT)
+ {
+ return xyzModem_cancel;
+ }
+ else
+ {
+ /* Wait for multiple CAN to avoid early quits */
+ break;
+ }
+ case EOT:
+ /* EOT only supported if no noise */
+ if (hdr_chars == 1)
+ {
+ CYGACC_COMM_IF_PUTC (*xyz.__chan, ACK);
+ ZM_DEBUG (zm_dprintf ("ACK on EOT #%d\n", __LINE__));
+ ZM_DEBUG (zm_dump (__LINE__));
+ return xyzModem_eof;
+ }
+ default:
+ /* Ignore, waiting for start of header */
+ ;
+ }
+ }
+ else
+ {
+ /* Data stream timed out */
+ xyzModem_flush (); /* Toss any current input */
+ ZM_DEBUG (zm_dump (__LINE__));
+ CYGACC_CALL_IF_DELAY_US ((cyg_int32) 250000);
+ return xyzModem_timeout;
+ }
}
- /* Header found, now read the data */
- res = CYGACC_COMM_IF_GETC_TIMEOUT(*xyz.__chan, (char *)&xyz.blk);
- ZM_DEBUG(zm_save(xyz.blk));
- if (!res) {
- ZM_DEBUG(zm_dump(__LINE__));
- return xyzModem_timeout;
+ /* Header found, now read the data */
+ res = CYGACC_COMM_IF_GETC_TIMEOUT (*xyz.__chan, (char *) &xyz.blk);
+ ZM_DEBUG (zm_save (xyz.blk));
+ if (!res)
+ {
+ ZM_DEBUG (zm_dump (__LINE__));
+ return xyzModem_timeout;
}
- res = CYGACC_COMM_IF_GETC_TIMEOUT(*xyz.__chan, (char *)&xyz.cblk);
- ZM_DEBUG(zm_save(xyz.cblk));
- if (!res) {
- ZM_DEBUG(zm_dump(__LINE__));
- return xyzModem_timeout;
+ res = CYGACC_COMM_IF_GETC_TIMEOUT (*xyz.__chan, (char *) &xyz.cblk);
+ ZM_DEBUG (zm_save (xyz.cblk));
+ if (!res)
+ {
+ ZM_DEBUG (zm_dump (__LINE__));
+ return xyzModem_timeout;
}
- xyz.len = (c == SOH) ? 128 : 1024;
- xyz.bufp = xyz.pkt;
- for (i = 0; i < xyz.len; i++) {
- res = CYGACC_COMM_IF_GETC_TIMEOUT(*xyz.__chan, &c);
- ZM_DEBUG(zm_save(c));
- if (res) {
- xyz.pkt[i] = c;
- } else {
- ZM_DEBUG(zm_dump(__LINE__));
- return xyzModem_timeout;
- }
+ xyz.len = (c == SOH) ? 128 : 1024;
+ xyz.bufp = xyz.pkt;
+ for (i = 0; i < xyz.len; i++)
+ {
+ res = CYGACC_COMM_IF_GETC_TIMEOUT (*xyz.__chan, &c);
+ ZM_DEBUG (zm_save (c));
+ if (res)
+ {
+ xyz.pkt[i] = c;
+ }
+ else
+ {
+ ZM_DEBUG (zm_dump (__LINE__));
+ return xyzModem_timeout;
+ }
}
- res = CYGACC_COMM_IF_GETC_TIMEOUT(*xyz.__chan, (char *)&xyz.crc1);
- ZM_DEBUG(zm_save(xyz.crc1));
- if (!res) {
- ZM_DEBUG(zm_dump(__LINE__));
- return xyzModem_timeout;
+ res = CYGACC_COMM_IF_GETC_TIMEOUT (*xyz.__chan, (char *) &xyz.crc1);
+ ZM_DEBUG (zm_save (xyz.crc1));
+ if (!res)
+ {
+ ZM_DEBUG (zm_dump (__LINE__));
+ return xyzModem_timeout;
}
- if (xyz.crc_mode) {
- res = CYGACC_COMM_IF_GETC_TIMEOUT(*xyz.__chan, (char *)&xyz.crc2);
- ZM_DEBUG(zm_save(xyz.crc2));
- if (!res) {
- ZM_DEBUG(zm_dump(__LINE__));
- return xyzModem_timeout;
- }
+ if (xyz.crc_mode)
+ {
+ res = CYGACC_COMM_IF_GETC_TIMEOUT (*xyz.__chan, (char *) &xyz.crc2);
+ ZM_DEBUG (zm_save (xyz.crc2));
+ if (!res)
+ {
+ ZM_DEBUG (zm_dump (__LINE__));
+ return xyzModem_timeout;
+ }
}
- ZM_DEBUG(zm_dump(__LINE__));
- /* Validate the message */
- if ((xyz.blk ^ xyz.cblk) != (unsigned char)0xFF) {
- ZM_DEBUG(zm_dprintf("Framing error - blk: %x/%x/%x\n", xyz.blk, xyz.cblk, (xyz.blk ^ xyz.cblk)));
- ZM_DEBUG(zm_dump_buf(xyz.pkt, xyz.len));
- xyzModem_flush();
- return xyzModem_frame;
+ ZM_DEBUG (zm_dump (__LINE__));
+ /* Validate the message */
+ if ((xyz.blk ^ xyz.cblk) != (unsigned char) 0xFF)
+ {
+ ZM_DEBUG (zm_dprintf
+ ("Framing error - blk: %x/%x/%x\n", xyz.blk, xyz.cblk,
+ (xyz.blk ^ xyz.cblk)));
+ ZM_DEBUG (zm_dump_buf (xyz.pkt, xyz.len));
+ xyzModem_flush ();
+ return xyzModem_frame;
}
- /* Verify checksum/CRC */
- if (xyz.crc_mode) {
- cksum = cyg_crc16(xyz.pkt, xyz.len);
- if (cksum != ((xyz.crc1 << 8) | xyz.crc2)) {
- ZM_DEBUG(zm_dprintf("CRC error - recvd: %02x%02x, computed: %x\n",
- xyz.crc1, xyz.crc2, cksum & 0xFFFF));
- return xyzModem_cksum;
- }
- } else {
- cksum = 0;
- for (i = 0; i < xyz.len; i++) {
- cksum += xyz.pkt[i];
- }
- if (xyz.crc1 != (cksum & 0xFF)) {
- ZM_DEBUG(zm_dprintf("Checksum error - recvd: %x, computed: %x\n", xyz.crc1, cksum & 0xFF));
- return xyzModem_cksum;
- }
+ /* Verify checksum/CRC */
+ if (xyz.crc_mode)
+ {
+ cksum = cyg_crc16 (xyz.pkt, xyz.len);
+ if (cksum != ((xyz.crc1 << 8) | xyz.crc2))
+ {
+ ZM_DEBUG (zm_dprintf ("CRC error - recvd: %02x%02x, computed: %x\n",
+ xyz.crc1, xyz.crc2, cksum & 0xFFFF));
+ return xyzModem_cksum;
+ }
}
- /* If we get here, the message passes [structural] muster */
- return 0;
+ else
+ {
+ cksum = 0;
+ for (i = 0; i < xyz.len; i++)
+ {
+ cksum += xyz.pkt[i];
+ }
+ if (xyz.crc1 != (cksum & 0xFF))
+ {
+ ZM_DEBUG (zm_dprintf
+ ("Checksum error - recvd: %x, computed: %x\n", xyz.crc1,
+ cksum & 0xFF));
+ return xyzModem_cksum;
+ }
+ }
+ /* If we get here, the message passes [structural] muster */
+ return 0;
}
int
-xyzModem_stream_open(connection_info_t *info, int *err)
+xyzModem_stream_open (connection_info_t * info, int *err)
{
#ifdef REDBOOT
- int console_chan;
+ int console_chan;
#endif
- int stat = 0;
- int retries = xyzModem_MAX_RETRIES;
- int crc_retries = xyzModem_MAX_RETRIES_WITH_CRC;
+ int stat = 0;
+ int retries = xyzModem_MAX_RETRIES;
+ int crc_retries = xyzModem_MAX_RETRIES_WITH_CRC;
/* ZM_DEBUG(zm_out = zm_out_start); */
#ifdef xyzModem_zmodem
- if (info->mode == xyzModem_zmodem) {
- *err = xyzModem_noZmodem;
- return -1;
+ if (info->mode == xyzModem_zmodem)
+ {
+ *err = xyzModem_noZmodem;
+ return -1;
}
#endif
#ifdef REDBOOT
- /* Set up the I/O channel. Note: this allows for using a different port in the future */
- console_chan = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
- if (info->chan >= 0) {
- CYGACC_CALL_IF_SET_CONSOLE_COMM(info->chan);
- } else {
- CYGACC_CALL_IF_SET_CONSOLE_COMM(console_chan);
+ /* Set up the I/O channel. Note: this allows for using a different port in the future */
+ console_chan =
+ CYGACC_CALL_IF_SET_CONSOLE_COMM
+ (CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
+ if (info->chan >= 0)
+ {
+ CYGACC_CALL_IF_SET_CONSOLE_COMM (info->chan);
}
- xyz.__chan = CYGACC_CALL_IF_CONSOLE_PROCS();
+ else
+ {
+ CYGACC_CALL_IF_SET_CONSOLE_COMM (console_chan);
+ }
+ xyz.__chan = CYGACC_CALL_IF_CONSOLE_PROCS ();
- CYGACC_CALL_IF_SET_CONSOLE_COMM(console_chan);
- CYGACC_COMM_IF_CONTROL(*xyz.__chan, __COMMCTL_SET_TIMEOUT, xyzModem_CHAR_TIMEOUT);
+ CYGACC_CALL_IF_SET_CONSOLE_COMM (console_chan);
+ CYGACC_COMM_IF_CONTROL (*xyz.__chan, __COMMCTL_SET_TIMEOUT,
+ xyzModem_CHAR_TIMEOUT);
#else
/* TODO: CHECK ! */
- int dummy;
- xyz.__chan=&dummy;
+ int dummy;
+ xyz.__chan = &dummy;
#endif
- xyz.len = 0;
- xyz.crc_mode = true;
- xyz.at_eof = false;
- xyz.tx_ack = false;
- xyz.mode = info->mode;
- xyz.total_retries = 0;
- xyz.total_SOH = 0;
- xyz.total_STX = 0;
- xyz.total_CAN = 0;
+ xyz.len = 0;
+ xyz.crc_mode = true;
+ xyz.at_eof = false;
+ xyz.tx_ack = false;
+ xyz.mode = info->mode;
+ xyz.total_retries = 0;
+ xyz.total_SOH = 0;
+ xyz.total_STX = 0;
+ xyz.total_CAN = 0;
#ifdef USE_YMODEM_LENGTH
- xyz.read_length = 0;
- xyz.file_length = 0;
+ xyz.read_length = 0;
+ xyz.file_length = 0;
#endif
- CYGACC_COMM_IF_PUTC(*xyz.__chan, (xyz.crc_mode ? 'C' : NAK));
+ CYGACC_COMM_IF_PUTC (*xyz.__chan, (xyz.crc_mode ? 'C' : NAK));
- if (xyz.mode == xyzModem_xmodem) {
- /* X-modem doesn't have an information header - exit here */
- xyz.next_blk = 1;
- return 0;
+ if (xyz.mode == xyzModem_xmodem)
+ {
+ /* X-modem doesn't have an information header - exit here */
+ xyz.next_blk = 1;
+ return 0;
}
- while (retries-- > 0) {
- stat = xyzModem_get_hdr();
- if (stat == 0) {
- /* Y-modem file information header */
- if (xyz.blk == 0) {
+ while (retries-- > 0)
+ {
+ stat = xyzModem_get_hdr ();
+ if (stat == 0)
+ {
+ /* Y-modem file information header */
+ if (xyz.blk == 0)
+ {
#ifdef USE_YMODEM_LENGTH
- /* skip filename */
- while (*xyz.bufp++);
- /* get the length */
- parse_num((char *)xyz.bufp, &xyz.file_length, NULL, " ");
+ /* skip filename */
+ while (*xyz.bufp++);
+ /* get the length */
+ parse_num ((char *) xyz.bufp, &xyz.file_length, NULL, " ");
#endif
- /* The rest of the file name data block quietly discarded */
- xyz.tx_ack = true;
- }
- xyz.next_blk = 1;
- xyz.len = 0;
- return 0;
- } else
- if (stat == xyzModem_timeout) {
- if (--crc_retries <= 0) xyz.crc_mode = false;
- CYGACC_CALL_IF_DELAY_US(5*100000); /* Extra delay for startup */
- CYGACC_COMM_IF_PUTC(*xyz.__chan, (xyz.crc_mode ? 'C' : NAK));
- xyz.total_retries++;
- ZM_DEBUG(zm_dprintf("NAK (%d)\n", __LINE__));
- }
- if (stat == xyzModem_cancel) {
- break;
- }
+ /* The rest of the file name data block quietly discarded */
+ xyz.tx_ack = true;
+ }
+ xyz.next_blk = 1;
+ xyz.len = 0;
+ return 0;
+ }
+ else if (stat == xyzModem_timeout)
+ {
+ if (--crc_retries <= 0)
+ xyz.crc_mode = false;
+ CYGACC_CALL_IF_DELAY_US (5 * 100000); /* Extra delay for startup */
+ CYGACC_COMM_IF_PUTC (*xyz.__chan, (xyz.crc_mode ? 'C' : NAK));
+ xyz.total_retries++;
+ ZM_DEBUG (zm_dprintf ("NAK (%d)\n", __LINE__));
+ }
+ if (stat == xyzModem_cancel)
+ {
+ break;
+ }
}
- *err = stat;
- ZM_DEBUG(zm_flush());
- return -1;
+ *err = stat;
+ ZM_DEBUG (zm_flush ());
+ return -1;
}
int
-xyzModem_stream_read(char *buf, int size, int *err)
+xyzModem_stream_read (char *buf, int size, int *err)
{
- int stat, total, len;
- int retries;
-
- total = 0;
- stat = xyzModem_cancel;
- /* Try and get 'size' bytes into the buffer */
- while (!xyz.at_eof && (size > 0)) {
- if (xyz.len == 0) {
- retries = xyzModem_MAX_RETRIES;
- while (retries-- > 0) {
- stat = xyzModem_get_hdr();
- if (stat == 0) {
- if (xyz.blk == xyz.next_blk) {
- xyz.tx_ack = true;
- ZM_DEBUG(zm_dprintf("ACK block %d (%d)\n", xyz.blk, __LINE__));
- xyz.next_blk = (xyz.next_blk + 1) & 0xFF;
+ int stat, total, len;
+ int retries;
+
+ total = 0;
+ stat = xyzModem_cancel;
+ /* Try and get 'size' bytes into the buffer */
+ while (!xyz.at_eof && (size > 0))
+ {
+ if (xyz.len == 0)
+ {
+ retries = xyzModem_MAX_RETRIES;
+ while (retries-- > 0)
+ {
+ stat = xyzModem_get_hdr ();
+ if (stat == 0)
+ {
+ if (xyz.blk == xyz.next_blk)
+ {
+ xyz.tx_ack = true;
+ ZM_DEBUG (zm_dprintf
+ ("ACK block %d (%d)\n", xyz.blk, __LINE__));
+ xyz.next_blk = (xyz.next_blk + 1) & 0xFF;
#if defined(xyzModem_zmodem) || defined(USE_YMODEM_LENGTH)
- if (xyz.mode == xyzModem_xmodem || xyz.file_length == 0) {
+ if (xyz.mode == xyzModem_xmodem || xyz.file_length == 0)
+ {
#else
- if (1) {
+ if (1)
+ {
#endif
- /* Data blocks can be padded with ^Z (EOF) characters */
- /* This code tries to detect and remove them */
- if ((xyz.bufp[xyz.len-1] == EOF) &&
- (xyz.bufp[xyz.len-2] == EOF) &&
- (xyz.bufp[xyz.len-3] == EOF)) {
- while (xyz.len && (xyz.bufp[xyz.len-1] == EOF)) {
- xyz.len--;
- }
- }
- }
+ /* Data blocks can be padded with ^Z (EOF) characters */
+ /* This code tries to detect and remove them */
+ if ((xyz.bufp[xyz.len - 1] == EOF) &&
+ (xyz.bufp[xyz.len - 2] == EOF) &&
+ (xyz.bufp[xyz.len - 3] == EOF))
+ {
+ while (xyz.len
+ && (xyz.bufp[xyz.len - 1] == EOF))
+ {
+ xyz.len--;
+ }
+ }
+ }
#ifdef USE_YMODEM_LENGTH
- /*
- * See if accumulated length exceeds that of the file.
- * If so, reduce size (i.e., cut out pad bytes)
- * Only do this for Y-modem (and Z-modem should it ever
- * be supported since it can fall back to Y-modem mode).
- */
- if (xyz.mode != xyzModem_xmodem && 0 != xyz.file_length) {
- xyz.read_length += xyz.len;
- if (xyz.read_length > xyz.file_length) {
- xyz.len -= (xyz.read_length - xyz.file_length);
- }
- }
+ /*
+ * See if accumulated length exceeds that of the file.
+ * If so, reduce size (i.e., cut out pad bytes)
+ * Only do this for Y-modem (and Z-modem should it ever
+ * be supported since it can fall back to Y-modem mode).
+ */
+ if (xyz.mode != xyzModem_xmodem && 0 != xyz.file_length)
+ {
+ xyz.read_length += xyz.len;
+ if (xyz.read_length > xyz.file_length)
+ {
+ xyz.len -= (xyz.read_length - xyz.file_length);
+ }
+ }
#endif
- break;
- } else if (xyz.blk == ((xyz.next_blk - 1) & 0xFF)) {
- /* Just re-ACK this so sender will get on with it */
- CYGACC_COMM_IF_PUTC(*xyz.__chan, ACK);
- continue; /* Need new header */
- } else {
- stat = xyzModem_sequence;
- }
- }
- if (stat == xyzModem_cancel) {
- break;
- }
- if (stat == xyzModem_eof) {
- CYGACC_COMM_IF_PUTC(*xyz.__chan, ACK);
- ZM_DEBUG(zm_dprintf("ACK (%d)\n", __LINE__));
- if (xyz.mode == xyzModem_ymodem) {
- CYGACC_COMM_IF_PUTC(*xyz.__chan, (xyz.crc_mode ? 'C' : NAK));
- xyz.total_retries++;
- ZM_DEBUG(zm_dprintf("Reading Final Header\n"));
- stat = xyzModem_get_hdr();
- CYGACC_COMM_IF_PUTC(*xyz.__chan, ACK);
- ZM_DEBUG(zm_dprintf("FINAL ACK (%d)\n", __LINE__));
- }
- xyz.at_eof = true;
- break;
- }
- CYGACC_COMM_IF_PUTC(*xyz.__chan, (xyz.crc_mode ? 'C' : NAK));
- xyz.total_retries++;
- ZM_DEBUG(zm_dprintf("NAK (%d)\n", __LINE__));
- }
- if (stat < 0) {
- *err = stat;
- xyz.len = -1;
- return total;
- }
- }
- /* Don't "read" data from the EOF protocol package */
- if (!xyz.at_eof) {
- len = xyz.len;
- if (size < len) len = size;
- memcpy(buf, xyz.bufp, len);
- size -= len;
- buf += len;
- total += len;
- xyz.len -= len;
- xyz.bufp += len;
- }
+ break;
+ }
+ else if (xyz.blk == ((xyz.next_blk - 1) & 0xFF))
+ {
+ /* Just re-ACK this so sender will get on with it */
+ CYGACC_COMM_IF_PUTC (*xyz.__chan, ACK);
+ continue; /* Need new header */
+ }
+ else
+ {
+ stat = xyzModem_sequence;
+ }
+ }
+ if (stat == xyzModem_cancel)
+ {
+ break;
+ }
+ if (stat == xyzModem_eof)
+ {
+ CYGACC_COMM_IF_PUTC (*xyz.__chan, ACK);
+ ZM_DEBUG (zm_dprintf ("ACK (%d)\n", __LINE__));
+ if (xyz.mode == xyzModem_ymodem)
+ {
+ CYGACC_COMM_IF_PUTC (*xyz.__chan,
+ (xyz.crc_mode ? 'C' : NAK));
+ xyz.total_retries++;
+ ZM_DEBUG (zm_dprintf ("Reading Final Header\n"));
+ stat = xyzModem_get_hdr ();
+ CYGACC_COMM_IF_PUTC (*xyz.__chan, ACK);
+ ZM_DEBUG (zm_dprintf ("FINAL ACK (%d)\n", __LINE__));
+ }
+ xyz.at_eof = true;
+ break;
+ }
+ CYGACC_COMM_IF_PUTC (*xyz.__chan, (xyz.crc_mode ? 'C' : NAK));
+ xyz.total_retries++;
+ ZM_DEBUG (zm_dprintf ("NAK (%d)\n", __LINE__));
+ }
+ if (stat < 0)
+ {
+ *err = stat;
+ xyz.len = -1;
+ return total;
+ }
+ }
+ /* Don't "read" data from the EOF protocol package */
+ if (!xyz.at_eof)
+ {
+ len = xyz.len;
+ if (size < len)
+ len = size;
+ memcpy (buf, xyz.bufp, len);
+ size -= len;
+ buf += len;
+ total += len;
+ xyz.len -= len;
+ xyz.bufp += len;
+ }
}
- return total;
+ return total;
}
void
-xyzModem_stream_close(int *err)
+xyzModem_stream_close (int *err)
{
- diag_printf("xyzModem - %s mode, %d(SOH)/%d(STX)/%d(CAN) packets, %d retries\n",
- xyz.crc_mode ? "CRC" : "Cksum",
- xyz.total_SOH, xyz.total_STX, xyz.total_CAN,
- xyz.total_retries);
- ZM_DEBUG(zm_flush());
+ diag_printf
+ ("xyzModem - %s mode, %d(SOH)/%d(STX)/%d(CAN) packets, %d retries\n",
+ xyz.crc_mode ? "CRC" : "Cksum", xyz.total_SOH, xyz.total_STX,
+ xyz.total_CAN, xyz.total_retries);
+ ZM_DEBUG (zm_flush ());
}
/* Need to be able to clean out the input buffer, so have to take the */
/* getc */
-void xyzModem_stream_terminate(bool abort, int (*getc)(void))
+void
+xyzModem_stream_terminate (bool abort, int (*getc) (void))
{
int c;
- if (abort) {
- ZM_DEBUG(zm_dprintf("!!!! TRANSFER ABORT !!!!\n"));
- switch (xyz.mode) {
+ if (abort)
+ {
+ ZM_DEBUG (zm_dprintf ("!!!! TRANSFER ABORT !!!!\n"));
+ switch (xyz.mode)
+ {
case xyzModem_xmodem:
case xyzModem_ymodem:
/* The X/YMODEM Spec seems to suggest that multiple CAN followed by an equal */
/* number of Backspaces is a friendly way to get the other end to abort. */
- CYGACC_COMM_IF_PUTC(*xyz.__chan,CAN);
- CYGACC_COMM_IF_PUTC(*xyz.__chan,CAN);
- CYGACC_COMM_IF_PUTC(*xyz.__chan,CAN);
- CYGACC_COMM_IF_PUTC(*xyz.__chan,CAN);
- CYGACC_COMM_IF_PUTC(*xyz.__chan,BSP);
- CYGACC_COMM_IF_PUTC(*xyz.__chan,BSP);
- CYGACC_COMM_IF_PUTC(*xyz.__chan,BSP);
- CYGACC_COMM_IF_PUTC(*xyz.__chan,BSP);
+ CYGACC_COMM_IF_PUTC (*xyz.__chan, CAN);
+ CYGACC_COMM_IF_PUTC (*xyz.__chan, CAN);
+ CYGACC_COMM_IF_PUTC (*xyz.__chan, CAN);
+ CYGACC_COMM_IF_PUTC (*xyz.__chan, CAN);
+ CYGACC_COMM_IF_PUTC (*xyz.__chan, BSP);
+ CYGACC_COMM_IF_PUTC (*xyz.__chan, BSP);
+ CYGACC_COMM_IF_PUTC (*xyz.__chan, BSP);
+ CYGACC_COMM_IF_PUTC (*xyz.__chan, BSP);
/* Now consume the rest of what's waiting on the line. */
- ZM_DEBUG(zm_dprintf("Flushing serial line.\n"));
- xyzModem_flush();
- xyz.at_eof = true;
- break;
+ ZM_DEBUG (zm_dprintf ("Flushing serial line.\n"));
+ xyzModem_flush ();
+ xyz.at_eof = true;
+ break;
#ifdef xyzModem_zmodem
case xyzModem_zmodem:
/* Might support it some day I suppose. */
#endif
- break;
- }
- } else {
- ZM_DEBUG(zm_dprintf("Engaging cleanup mode...\n"));
+ break;
+ }
+ }
+ else
+ {
+ ZM_DEBUG (zm_dprintf ("Engaging cleanup mode...\n"));
/*
* Consume any trailing crap left in the inbuffer from
* previous recieved blocks. Since very few files are an exact multiple
* of the transfer block size, there will almost always be some gunk here.
* If we don't eat it now, RedBoot will think the user typed it.
*/
- ZM_DEBUG(zm_dprintf("Trailing gunk:\n"));
- while ((c = (*getc)()) > -1) ;
- ZM_DEBUG(zm_dprintf("\n"));
+ ZM_DEBUG (zm_dprintf ("Trailing gunk:\n"));
+ while ((c = (*getc) ()) > -1);
+ ZM_DEBUG (zm_dprintf ("\n"));
/*
* Make a small delay to give terminal programs like minicom
* time to get control again after their file transfer program
* exits.
*/
- CYGACC_CALL_IF_DELAY_US((cyg_int32)250000);
- }
+ CYGACC_CALL_IF_DELAY_US ((cyg_int32) 250000);
+ }
}
char *
-xyzModem_error(int err)
+xyzModem_error (int err)
{
- switch (err) {
+ switch (err)
+ {
case xyzModem_access:
- return "Can't access file";
- break;
+ return "Can't access file";
+ break;
case xyzModem_noZmodem:
- return "Sorry, zModem not available yet";
- break;
+ return "Sorry, zModem not available yet";
+ break;
case xyzModem_timeout:
- return "Timed out";
- break;
+ return "Timed out";
+ break;
case xyzModem_eof:
- return "End of file";
- break;
+ return "End of file";
+ break;
case xyzModem_cancel:
- return "Cancelled";
- break;
+ return "Cancelled";
+ break;
case xyzModem_frame:
- return "Invalid framing";
- break;
+ return "Invalid framing";
+ break;
case xyzModem_cksum:
- return "CRC/checksum error";
- break;
+ return "CRC/checksum error";
+ break;
case xyzModem_sequence:
- return "Block sequence error";
- break;
+ return "Block sequence error";
+ break;
default:
- return "Unknown error";
- break;
+ return "Unknown error";
+ break;
}
}
/*
* RedBoot interface
*/
-#if 0 /* SB */
-GETC_IO_FUNCS(xyzModem_io, xyzModem_stream_open, xyzModem_stream_close,
- xyzModem_stream_terminate, xyzModem_stream_read, xyzModem_error);
-RedBoot_load(xmodem, xyzModem_io, false, false, xyzModem_xmodem);
-RedBoot_load(ymodem, xyzModem_io, false, false, xyzModem_ymodem);
+#if 0 /* SB */
+GETC_IO_FUNCS (xyzModem_io, xyzModem_stream_open, xyzModem_stream_close,
+ xyzModem_stream_terminate, xyzModem_stream_read,
+ xyzModem_error);
+RedBoot_load (xmodem, xyzModem_io, false, false, xyzModem_xmodem);
+RedBoot_load (ymodem, xyzModem_io, false, false, xyzModem_ymodem);
#endif
generated by cgit v1.1 at 2024-11-18 11:06:51 +0000