src/target/firmware/board/common/readcal_tiffs.c

   1 /*
   2  * This code was written by Mychaela Falconia <falcon@freecalypso.org>
   3  * who refuses to claim copyright on it and has released it as public domain
   4  * instead. NO rights reserved, all rights relinquished.
   5  *
   6  * Tweaked (coding style changes) by Vadim Yanitskiy <axilirator@gmail.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  */
  19
  20 #include <stdio.h>
  21 #include <stdint.h>
  22 #include <string.h>
  23
  24 #include <rf/readcal.h>
  25 #include <rf/vcxocal.h>
  26 #include <rf/txcal.h>
  27 #include <tiffs.h>
  28
  29 static int16_t afcdac_shifted;
  30
  31 static void afcdac_postproc(void)
  32 {
  33         afc_initial_dac_value = afcdac_shifted >> 3;
  34 }
  35
  36 static const struct calmap {
  37         char    *pathname;
  38         size_t  record_len;
  39         void    *buffer;
  40         void    (*postproc)(void);
  41 } rf_cal_list[] = {
  42         { "/gsm/rf/afcdac",          2,   &afcdac_shifted,     afcdac_postproc },
  43         { "/gsm/rf/tx/ramps.850",    512, rf_tx_ramps_850,     NULL },
  44         { "/gsm/rf/tx/levels.850",   128, rf_tx_levels_850,    NULL },
  45         { "/gsm/rf/tx/calchan.850",  128, rf_tx_chan_cal_850,  NULL },
  46         { "/gsm/rf/tx/ramps.900",    512, rf_tx_ramps_900,     NULL },
  47         { "/gsm/rf/tx/levels.900",   128, rf_tx_levels_900,    NULL },
  48         { "/gsm/rf/tx/calchan.900",  128, rf_tx_chan_cal_900,  NULL },
  49         { "/gsm/rf/tx/ramps.1800",   512, rf_tx_ramps_1800,    NULL },
  50         { "/gsm/rf/tx/levels.1800",  128, rf_tx_levels_1800,   NULL },
  51         { "/gsm/rf/tx/calchan.1800", 128, rf_tx_chan_cal_1800, NULL },
  52         { "/gsm/rf/tx/ramps.1900",   512, rf_tx_ramps_1900,    NULL },
  53         { "/gsm/rf/tx/levels.1900",  128, rf_tx_levels_1900,   NULL },
  54         { "/gsm/rf/tx/calchan.1900", 128, rf_tx_chan_cal_1900, NULL },
  55         { NULL,                      0,   NULL,                NULL }
  56 };
  57
  58 void read_factory_rf_calibration(void)
  59 {
  60         const struct calmap *tp;
  61         uint8_t buf[512];
  62         int rc;
  63
  64         puts("Checking TIFFS for the RF calibration records\n");
  65         for (tp = rf_cal_list; tp->pathname; tp++) {
  66                 rc = tiffs_read_file_fixedlen(tp->pathname, buf,
  67                                               tp->record_len);
  68                 if (rc <= 0)
  69                         continue;
  70                 printf("Found '%s', applying\n", tp->pathname);
  71                 memcpy(tp->buffer, buf, tp->record_len);
  72                 if (tp->postproc)
  73                         tp->postproc();
  74         }
  75 }