FreeCalypso > hg > freecalypso-sw
view rvinterf/etmsync/pirhackinit.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 | 7cb0b32f1997 |
children |
line wrap: on
line source
/* * This fc-pirhackinit utility is highly specific to the TCS211-on-Pirelli * exercise. DO NOT run it against Pirelli's stock firmware, nor is it needed * when using our full-source FreeCalypso firmware. */ #include <sys/types.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include "etm.h" #include "ffs.h" #include "tmffs2.h" #include "localtypes.h" #include "exitcodes.h" extern u_char pirelli_imeisv[8]; write_pcm_imei() { static char destfile[] = "/pcm/IMEI"; u_char swapped[8]; int i, d1, d2; printf("Writing %s\n", destfile); for (i = 0; i < 8; i++) { d1 = pirelli_imeisv[i] >> 4; d2 = pirelli_imeisv[i] & 0xF; swapped[i] = (d2 << 4) | d1; } return do_short_fwrite(destfile, swapped, 8); } read_mem_region(memaddr, databuf, total_bytes) u32 memaddr; u_char *databuf; { int chunk, remain, rc; for (remain = total_bytes; remain; remain -= chunk) { chunk = remain; if (chunk > MAX_MEMREAD_BYTES) chunk = MAX_MEMREAD_BYTES; rc = do_memory_read(memaddr, databuf, chunk); if (rc) return(rc); memaddr += chunk; databuf += chunk; } return(0); } write_buf_to_file(pathname, data, datalen) char *pathname; u_char *data; { int tfd, rc, chunk, remain; if (datalen <= max_short_file_write(pathname)) return do_short_fwrite(pathname, data, datalen); /* do it the long way */ rc = fd_open(pathname, FFS_O_WRONLY | FFS_O_CREATE | FFS_O_TRUNC, &tfd); if (rc) return(rc); for (remain = datalen; remain; remain -= chunk) { chunk = remain; if (chunk > 240) chunk = 240; rc = fd_write(tfd, data, chunk); if (rc) { fd_close(tfd); return(rc); } data += chunk; } return fd_close(tfd); } copy_calib_record(memaddr, pathname, size) u32 memaddr; char *pathname; int size; { u_char *buf; int rc; buf = malloc(size); if (!buf) { perror("malloc"); exit(ERROR_UNIX); } rc = read_mem_region(memaddr, buf, size); if (rc) { free(buf); return(rc); } rc = write_buf_to_file(pathname, buf, size); free(buf); return(rc); } static struct calmap { u32 offset; int size; char *ti_equiv; } pirelli_cal_map[] = { {0x06E5, 36, "/sys/adccal"}, {0x072B, 512, "/gsm/rf/tx/ramps.900"}, {0x092C, 128, "/gsm/rf/tx/levels.900"}, {0x09AD, 128, "/gsm/rf/tx/calchan.900"}, {0x0A2E, 512, "/gsm/rf/tx/ramps.1800"}, {0x0C2F, 128, "/gsm/rf/tx/levels.1800"}, {0x0CB0, 128, "/gsm/rf/tx/calchan.1800"}, {0x0D31, 512, "/gsm/rf/tx/ramps.1900"}, {0x0F32, 128, "/gsm/rf/tx/levels.1900"}, {0x0FB3, 128, "/gsm/rf/tx/calchan.1900"}, {0x10AF, 40, "/gsm/rf/rx/calchan.900"}, {0x10D8, 8, "/gsm/rf/rx/agcparams.900"}, {0x10E1, 40, "/gsm/rf/rx/calchan.1800"}, {0x110A, 8, "/gsm/rf/rx/agcparams.1800"}, {0x1113, 40, "/gsm/rf/rx/calchan.1900"}, {0x113C, 8, "/gsm/rf/rx/agcparams.1900"}, {0, 0, 0} }; copy_calib_data() { struct calmap *tp; int rc; printf("Copying calibration records to FFS\n"); for (tp = pirelli_cal_map; tp->size; tp++) { rc = copy_calib_record(0x027F0000 + tp->offset, tp->ti_equiv, tp->size); if (rc) return(rc); } return(0); } single_op_main() { int rc; rc = get_pirelli_imei(); if (rc) return(rc); printf("Creating TCS211 file system directories\n"); rc = create_std_dirs(); if (rc) return(rc); rc = write_pcm_imei(); if (rc) return(rc); rc = copy_calib_data(); if (rc) return(rc); return set_rfcap("tri900"); }