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/*
* This code was written by Mychaela Falconia <falcon@freecalypso.org>
* who refuses to claim copyright on it and has released it as public domain
* instead. NO rights reserved, all rights relinquished.
*
* Tweaked (coding style changes) by Vadim Yanitskiy <axilirator@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <rf/readcal.h>
#include <rf/txcal.h>
#include <rf/vcxocal.h>
static int16_t afcdac_shifted;
static void afcdac_postproc(void)
{
afc_initial_dac_value = afcdac_shifted >> 3;
}
static int verify_checksum(const uint8_t *start, size_t len)
{
const uint8_t *p, *endp;
uint8_t accum;
p = start;
endp = start + len;
accum = 0;
while (p < endp)
accum += *p++;
if (accum == *p)
return 0; /* good */
else
return -1; /* bad */
}
static const struct calmap {
char *desc;
unsigned offset;
size_t record_len;
void *buffer;
void (*postproc)(void);
} rf_cal_list[] = {
{ "afcdac", 0x528, 2, &afcdac_shifted, afcdac_postproc },
{ "Tx ramps 900", 0x72B, 512, rf_tx_ramps_900, NULL },
{ "Tx levels 900", 0x92C, 128, rf_tx_levels_900, NULL },
{ "Tx calchan 900", 0x9AD, 128, rf_tx_chan_cal_900, NULL },
{ "Tx ramps 1800", 0xA2E, 512, rf_tx_ramps_1800, NULL },
{ "Tx levels 1800", 0xC2F, 128, rf_tx_levels_1800, NULL },
{ "Tx calchan 1800", 0xCB0, 128, rf_tx_chan_cal_1800, NULL },
{ "Tx ramps 1900", 0xD31, 512, rf_tx_ramps_1900, NULL },
{ "Tx levels 1900", 0xF32, 128, rf_tx_levels_1900, NULL },
{ "Tx calchan 1900", 0xFB3, 128, rf_tx_chan_cal_1900, NULL },
{ NULL, 0, 0, NULL, NULL }
};
void read_factory_rf_calibration(void)
{
const struct calmap *tp;
const uint8_t *record;
puts("Checking factory data block for the RF calibration records\n");
for (tp = rf_cal_list; tp->desc; tp++) {
record = (const uint8_t *)0x027F0000 + tp->offset;
if (verify_checksum(record, tp->record_len) < 0)
continue;
printf("Found '%s' record, applying\n", tp->desc);
memcpy(tp->buffer, record, tp->record_len);
if (tp->postproc)
tp->postproc();
}
}
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