FreeCalypso > hg > freecalypso-sw
view loadtools/chainload.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 | 771d9fda7630 |
children |
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/* * This module implements the chain-loading of XRAM images via loadagent. */ #include <sys/types.h> #include <stdint.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include "srecreader.h" struct srecreader xramimage; extern struct baudrate *current_baud_rate; extern struct baudrate *xram_run_baudrate; static void make_ml_arg(rec, buf) u_char *rec; char *buf; { register int i, len; register char *s; len = rec[0] + 1; s = buf; for (i = 0; i < len; i++) { sprintf(s, "%02X", rec[i]); s += 2; } *s = '\0'; } perform_chain_load() { int resp; unsigned long rec_count; char *argv[3], srecarg[516]; if (open_srec_file(&xramimage) < 0) exit(1); argv[0] = "ML"; argv[1] = srecarg; argv[2] = 0; for (rec_count = 0; ; ) { if (read_s_record(&xramimage) < 0) exit(1); switch (xramimage.record_type) { case '0': if (xramimage.lineno == 1) continue; fprintf(stderr, "%s: S0 record found in line %d (expected in line 1 only)\n", xramimage.filename, xramimage.lineno); exit(1); case '3': case '7': if (s3s7_get_addr_data(&xramimage) < 0) exit(1); break; default: fprintf(stderr, "%s line %d: S%c record type not supported\n", xramimage.filename, xramimage.lineno, xramimage.record_type); exit(1); } if (xramimage.record_type == '7') break; /* must be S3 */ if (xramimage.datalen < 1) { fprintf(stderr, "%s line %d: S3 record has zero data length\n", xramimage.filename, xramimage.lineno); exit(1); } if (!rec_count) printf("Each \'.\' is 100 S-records\n"); make_ml_arg(xramimage.record, srecarg); tpinterf_make_cmd(argv); if (tpinterf_send_cmd()) exit(1); if (tpinterf_pass_output(1)) exit(1); rec_count++; if (rec_count % 100 == 0) { putchar('.'); fflush(stdout); } } /* got S7 */ fclose(xramimage.openfile); if (!rec_count) { fprintf(stderr, "%s line %d: S7 without any preceding S3 data records\n", xramimage.filename, xramimage.lineno); exit(1); } if (xram_run_baudrate != current_baud_rate) { resp = loadagent_switch_baud(xram_run_baudrate); if (resp) exit(1); } printf("Sending jump command\n"); sprintf(srecarg, "%lX", (u_long) xramimage.addr); argv[0] = "jump"; tpinterf_make_cmd(argv); if (tpinterf_send_cmd()) exit(1); printf("Sent \"%s %s\": XRAM image should now be running!\n", argv[0], argv[1]); return(0); }