FreeCalypso > hg > freecalypso-tools
view loadtools/flprogbin.c @ 619:f82551c77e58
libserial-newlnx: ASYNC_LOW_LATENCY patch reverted
Reports from Das Signal indicate that loadtools performance on Debian
is about the same as on Slackware, and that including or omitting the
ASYNC_LOW_LATENCY patch from Serg makes no difference. Because the
patch in question does not appear to be necessary, it is being reverted
until and unless someone other than Serg reports an actual real-world
system on which loadtools operation times are slowed compared to the
Mother's Slackware reference and on which Slackware-like performance
can be restored by setting the ASYNC_LOW_LATENCY flag.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 27 Feb 2020 01:09:48 +0000 |
parents | 52980e3a51c7 |
children | b43d8c2725b9 |
line wrap: on
line source
/* * This module implements the flash program-bin command: * programming flash using a binary file as the data source. */ #include <sys/types.h> #include <sys/stat.h> #include <stdio.h> #include <stdint.h> #include <stdlib.h> #include <time.h> #include "flash.h" extern struct flash_bank_info flash_bank_info[2]; extern uint32_t crc32_table[]; flashcmd_progbin(argc, argv, bank) char **argv; { struct flash_bank_info *bi; u_long flashoff, fileoff, len, origlen, bytesdone; u_long crc_base_addr, crc_from_target; uint32_t crcaccum; char *strtoul_endp; FILE *binf; struct stat filestat; char *targv[4], shortarg[10], longarg[513]; u_char databuf[256]; int reclen, cc, i; time_t initial_time, curtime, last_time; unsigned duration, mm, ss; if (argc < 4 || argc > 6) { inv: fprintf(stderr, "usage: %s %s flash-offset binfile [file-offset [length]]\n", argv[0], argv[1]); return(-1); } flashoff = strtoul(argv[2], &strtoul_endp, 16); if (*strtoul_endp) goto inv; if (flash_detect(bank, 0) < 0) return(-1); bi = flash_bank_info + bank; if (flashoff >= bi->geom->total_size) { fprintf(stderr, "error: specified flash offset exceeds bank size (0x%lx)\n", (u_long) bi->geom->total_size); return(-1); } if (flashoff & 1) { fprintf(stderr, "error: flash offset must be even\n"); return(-1); } binf = fopen(argv[3], "r"); if (!binf) { perror(argv[3]); return(-1); } fstat(fileno(binf), &filestat); if (!S_ISREG(filestat.st_mode)) { fprintf(stderr, "%s is not a regular file\n", argv[3]); fclose(binf); return(-1); } if (argc > 4) { fileoff = strtoul(argv[4], &strtoul_endp, 16); if (*strtoul_endp) { fclose(binf); goto inv; } if (fileoff > filestat.st_size) { fprintf(stderr, "error: specified file offset exceeds file length\n"); fclose(binf); return(-1); } } else fileoff = 0; if (argc > 5) { len = strtoul(argv[5], &strtoul_endp, 16); if (*strtoul_endp) { fclose(binf); goto inv; } if (len > filestat.st_size - fileoff) { fprintf(stderr, "error: specified file offset+length exceed file length\n"); fclose(binf); return(-1); } } else len = filestat.st_size - fileoff; if (!len) { printf("Length is zero - nothing to do!\n"); fclose(binf); return(0); } if (len > bi->geom->total_size - flashoff) { fprintf(stderr, "error: specified flash offset+length exceed bank size (0x%lx)\n", (u_long) bi->geom->total_size); fclose(binf); return(-1); } if (len & 1) { fprintf(stderr, "error: program length must be even\n"); fclose(binf); return(-1); } /* finally done with the arg parsing etc, can get to work now */ crc_base_addr = bi->base_addr + flashoff; sprintf(shortarg, "%lx", (u_long) bi->base_addr); targv[0] = bi->ops->loadagent_setbase_cmd; targv[1] = shortarg; targv[2] = 0; printf("Setting flash base address: %s %s\n", targv[0], targv[1]); tpinterf_make_cmd(targv); if (tpinterf_send_cmd() < 0) { fclose(binf); return(-1); } cc = tpinterf_pass_output(1); if (cc) { fclose(binf); return(cc); } if (bi->ops->prep_for_program(bi) < 0) { fclose(binf); return(-1); } fseek(binf, fileoff, SEEK_SET); targv[0] = bi->ops->loadagent_program_cmd; targv[1] = shortarg; targv[2] = longarg; targv[3] = 0; printf("Programming flash: %lu (0x%lx) bytes\n", len, len); origlen = len; bytesdone = 0; last_time = 0; crcaccum = 0xFFFFFFFF; time(&initial_time); while (len) { if (len >= 256) reclen = 256; else reclen = len; cc = fread(databuf, 1, reclen, binf); if (cc != reclen) { fclose(binf); fprintf(stderr, "error reading from %s\n", argv[3]); return(-1); } for (i = 0; i < reclen; i++) /* update running CRC */ crcaccum = crc32_table[crcaccum & 0xFF ^ databuf[i]] ^ (crcaccum >> 8); sprintf(shortarg, "%lx", flashoff); build_flashw_hex_string(databuf, longarg, reclen >> 1, 0); tpinterf_make_cmd(targv); if (tpinterf_send_cmd() < 0) { fclose(binf); return(-1); } i = tpinterf_pass_output(8); /* 8 s timeout */ if (i) { fclose(binf); return(i); } flashoff += reclen; len -= reclen; bytesdone += reclen; cc = bytesdone * 100 / origlen; time(&curtime); if (curtime != last_time || cc == 100) { printf("\r0x%lx bytes programmed (%i%%)", bytesdone, cc); fflush(stdout); } last_time = curtime; } putchar('\n'); fclose(binf); duration = last_time - initial_time; mm = duration / 60; ss = duration - mm * 60; printf("Operation completed in %um%us\n", mm, ss); /* reset flash to read mode */ if (bi->ops->reset_cmd(bi) < 0) return(-1); printf("Verifying CRC-32 of programmed flash area\n"); if (crc32_on_target(crc_base_addr, origlen, &crc_from_target) < 0) return(-1); if (crc_from_target == crcaccum) { printf("match (%08lX)\n", crc_from_target); return(0); } else { fprintf(stderr, "error: CRC mismatch!\n"); return(-1); } }