FreeCalypso > hg > freecalypso-tools
view loadtools/tpinterf2.c @ 505:7bf0d909c87e
fc-loadtool flash ID check: change of reset after the check logic
This change only affects those flash configurations that have ID checks
enabled. The logic for resetting the flash after the ID check has been
changed as follows:
1) If the check fails, we return without attempting to reset the flash.
2) If the check is successful, we reset the flash using the configured
method (could be AMD or Intel or Intel W30) instead of always doing an
AMD flash reset as the original code did.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Mon, 27 May 2019 19:58:01 +0000 |
parents | e7502631a0f9 |
children | 8d7dcfd9df53 |
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/* * This module provides a more advanced target interface function * than tpinterf.c - programmatic capture of target responses, * for dumps etc. It will be linked by fc-loadtool, but not fc-chainload. */ #include <sys/types.h> #include <sys/time.h> #include <sys/errno.h> #include <stdio.h> #include <string.h> #include <strings.h> #include <stdlib.h> extern int errno; extern int target_fd; /* * This functions reads the serial output from the target until a * '=' prompt is received. All intermediate output is parsed into * lines and passed to a callback function. * * The callback function is called with a pointer to each received * line, stored in a buffer ending in NUL, with CRLF stripped. * The callback function is expected to return an int. If the * callback return value is negative, this function returns immediately * with that negative value. If the callback return value is positive * or zero, it is added to an accumulator. * * Termination: this function returns when it has received a '=' at * the beginning of a line (return value is the callback return * accumulator, or 0 if no lines came), if the callback returns a * negative value (that value is returned), or if an error is detected * within this function (return value -1, and an error message * printed on stderr). */ tpinterf_capture_output(timeout, callback) int timeout; /* seconds */ int (*callback)(); { char buf[512], *cp; char line[1024], *dp = line; fd_set fds; struct timeval tv; int cc, linelen = 0; int totout = 0, cbret; for (;;) { FD_ZERO(&fds); FD_SET(target_fd, &fds); tv.tv_sec = timeout; tv.tv_usec = 0; cc = select(target_fd+1, &fds, NULL, NULL, &tv); if (cc < 0) { if (errno == EINTR) continue; perror("select"); return(-1); } if (cc < 1) { fprintf(stderr, "error: timeout waiting for \'=\' prompt from target\n"); return(-1); } cc = read(target_fd, buf, sizeof buf); if (cc <= 0) { perror("read after successful select"); return(-1); } for (cp = buf; cc; cp++) { cc--; if (*cp == '=' && !linelen && !cc) return(totout); if (*cp == '\r') continue; if (*cp == '\n') { *dp = '\0'; cbret = callback(line); if (cbret < 0) return(cbret); totout += cbret; dp = line; linelen = 0; continue; } *dp++ = *cp; linelen++; if (linelen >= sizeof line) { fprintf(stderr, "error: target response line length exceeds buffer\n"); return(-1); } } } } /* single line response capture mechanism */ /* same line buffer size as in tpinterf_capture_output() */ char target_response_line[1024]; static oneline_catcher(linein) char *linein; { strcpy(target_response_line, linein); return(1); } tpinterf_capture_output_oneline(timeout) { return tpinterf_capture_output(timeout, oneline_catcher); }