FreeCalypso > hg > freecalypso-sw
view loadtools/tpinterf2.c @ 923:10b4bed10192
gsm-fw/L1: fix for the DSP patch corruption bug
The L1 code we got from the LoCosto fw contains a feature for DSP CPU load
measurement. This feature is a LoCosto-ism, i.e., not applicable to earlier
DBB chips (Calypso) with their respective earlier DSP ROMs. Most of the
code dealing with that feature is conditionalized as #if (DSP >= 38),
but one spot was missed, and the MCU code was writing into an API word
dealing with this feature. In TCS211 this DSP API word happens to be
used by the DSP code patch, hence that write was corrupting the patched
DSP code.
author | Mychaela Falconia <falcon@ivan.Harhan.ORG> |
---|---|
date | Mon, 19 Oct 2015 17:13:56 +0000 |
parents | 05af070c4b60 |
children |
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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); }