NMT 450: Support for other European counties, like Belgium, Czech, Slovakia
This commit is contained in:
Andreas Eversberg
125
src/nmt/nmt.c
125
src/nmt/nmt.c
@@ -33,6 +33,7 @@
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#include "transaction.h"
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#include "dsp.h"
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#include "frame.h"
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#include "countries.h"
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/* How does paging on all channels work:
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*
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@@ -211,31 +212,6 @@ const char *nmt_dir_name(enum nmt_direction dir)
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return "invalid";
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}
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/* Convert channel number to frequency number of base station.
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Set 'uplink' to 1 to get frequency of mobile station. */
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double nmt_channel2freq(int channel, int uplink)
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{
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double freq;
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if (channel < 1)
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return 0;
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else if (channel <= 180)
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freq = 463.000 + (channel - 1) * 0.025;
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else if (channel <= 200)
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freq = 462.500 + (channel - 181) * 0.025;
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else if (channel <= 380)
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freq = 463.000 + (channel - 201) * 0.025 + 0.0125;
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else if (channel <= 399) /* no channel 400, caused by interleaving and coding */
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freq = 462.500 + (channel - 381) * 0.025 + 0.0125;
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else
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return 0;
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if (uplink)
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freq -= 10.000;
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return freq * 1e6;
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}
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/* convert 7-digits dial string to NMT number */
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static int dialstring2number(const char *dialstring, char *ms_country, char *ms_number)
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{
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@@ -252,87 +228,32 @@ static int dialstring2number(const char *dialstring, char *ms_country, char *ms_
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return 0;
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}
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/* country selector */
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static struct nmt_country {
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int y;
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const char *short_name;
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const char *long_name;
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const char *provider_name;
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} nmt_country[] = {
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{ 5, "DK", "Denmark", "Tele Danmark Mobile" },
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{ 6, "SE", "Sweden", "Telia Mobitel" },
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{ 7, "NO", "Norway", "Telenor Mobil" },
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{ 8, "FI", "Finland", "Telecom Finland" },
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{ 8, "IS", "Iceland", "Post & Telecom" },
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{ 5, "FO", "Faroe Island", "Faroese Telecom" },
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{ 7, "EE", "Estonia", "Eesti Mobiiltelefon" },
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{ 5, "LV", "Latvia", "Latvian Mobile Telephone" },
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{ 8, "LT", "Lithuania", "COMLIET" },
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{ 6, "BY", "Belarus", "Belcel" },
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{ 5, "MO", "OSS/Moscow", "Moscow Cellular Comm." },
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{ 6, "STP", "OSS/St Petersburg", "Delta Telecom" },
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{ 6, "STP", "OSS/Leningrads Dist.", "Delta Telecom" },
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{ 7, "CAR", "OSS/Carelian Rep.", "Telecom Finland" },
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{ 5, "MUR", "OSS/Murmansk", "Telecom Finland" },
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{ 5, "LED", "OSS/Leningrads Dist.", "Telecom Finland" },
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{ 5, "KAL", "Kaliningrad", "Telecom Finland" },
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{ 7, "PL", "Poland", "CENTERTEL" },
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{ 6, "BG", "Bulgaria", "MOBIFON" },
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{ 5, "RO", "Romania", "Telefonica Romania" },
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{ 6, "UA", "Ukraine", "Ukraine Mobile Comm." },
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{ 1, "RU1", "", "" },
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{ 2, "RU2", "", "" },
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{ 3, "RU3", "", "" },
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{ 4, "RU4", "", "" },
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{ 4, "RU4", "", "" },
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{ -1, "NULL", "", "" },
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{ 0, NULL, NULL, NULL }
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};
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void nmt_country_list(void)
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{
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int i;
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printf("TA\tShort\tCountry (Provider)\n");
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printf("------------------------------------------------------------------------\n");
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for (i = 0; nmt_country[i].short_name; i++) {
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if (nmt_country[i].long_name[0])
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printf("%d\t%s\t%s (%s)\n", nmt_country[i].y, nmt_country[i].short_name, nmt_country[i].long_name, nmt_country[i].provider_name);
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else
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printf("%d\t%s\n", nmt_country[i].y, nmt_country[i].short_name);
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}
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}
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uint8_t nmt_country_by_short_name(const char *short_name)
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{
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int i;
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for (i = 0; nmt_country[i].short_name; i++) {
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if (!strcasecmp(nmt_country[i].short_name, short_name))
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return nmt_country[i].y;
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}
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return 0;
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}
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static void nmt_timeout(struct timer *timer);
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/* Create transceiver instance and link to a list. */
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int nmt_create(int channel, enum nmt_chan_type chan_type, const char *audiodev, int use_sdr, int samplerate, double rx_gain, int pre_emphasis, int de_emphasis, const char *write_rx_wave, const char *write_tx_wave, const char *read_rx_wave, uint8_t ms_power, uint8_t traffic_area, uint8_t area_no, int compandor, int supervisory, const char *smsc_number, int send_callerid, int loopback)
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int nmt_create(const char *country, int channel, enum nmt_chan_type chan_type, const char *audiodev, int use_sdr, int samplerate, double rx_gain, int pre_emphasis, int de_emphasis, const char *write_rx_wave, const char *write_tx_wave, const char *read_rx_wave, uint8_t ms_power, uint8_t traffic_area, uint8_t area_no, int compandor, int supervisory, const char *smsc_number, int send_callerid, int loopback)
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{
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nmt_t *nmt;
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int rc;
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double deviation_factor;
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int scandinavia;
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int tested;
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if (channel < 1 || channel > 399) {
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PDEBUG(DNMT, DEBUG_ERROR, "Channel number %d invalid.\n", channel);
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/* check channel matching and set deviation factor */
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if (nmt_channel2freq(country, channel, 0, &deviation_factor, &scandinavia, &tested) == 0.0) {
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PDEBUG(DNMT, DEBUG_NOTICE, "Channel number %d invalid, use '-Y list' to get a list of available channels.\n", channel);
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return -EINVAL;
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}
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if (channel >= 201) {
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if (!tested) {
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PDEBUG(DNMT, DEBUG_NOTICE, "*** The given NMT country has not been tested yet. Please tell the Author, if it works.\n");
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}
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if (scandinavia && channel >= 201) {
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PDEBUG(DNMT, DEBUG_NOTICE, "*** Channels numbers above 200 have been specified, but never used. These 'interleaved channels are probably not supports by the phone.\n");
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}
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if (channel >= 181 && channel <= 200) {
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if (scandinavia && channel >= 181 && channel <= 200) {
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PDEBUG(DNMT, DEBUG_NOTICE, "Extended channel numbers (181..200) have been specified, but never been supported for sure. There is no phone to test with, so don't use it!\n");
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}
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@@ -349,7 +270,7 @@ int nmt_create(int channel, enum nmt_chan_type chan_type, const char *audiodev,
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PDEBUG(DNMT, DEBUG_DEBUG, "Creating 'NMT' instance for channel = %d (sample rate %d).\n", channel, samplerate);
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/* init general part of transceiver */
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rc = sender_create(&nmt->sender, channel, nmt_channel2freq(channel, 0), nmt_channel2freq(channel, 1), audiodev, use_sdr, samplerate, rx_gain, pre_emphasis, de_emphasis, write_rx_wave, write_tx_wave, read_rx_wave, loopback, 0, PAGING_SIGNAL_NONE);
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rc = sender_create(&nmt->sender, channel, nmt_channel2freq(country, channel, 0, NULL, NULL, NULL), nmt_channel2freq(country, channel, 1, NULL, NULL, NULL), audiodev, use_sdr, samplerate, rx_gain, pre_emphasis, de_emphasis, write_rx_wave, write_tx_wave, read_rx_wave, loopback, 0, PAGING_SIGNAL_NONE);
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if (rc < 0) {
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PDEBUG(DNMT, DEBUG_ERROR, "Failed to init transceiver process!\n");
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goto error;
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@@ -366,7 +287,7 @@ int nmt_create(int channel, enum nmt_chan_type chan_type, const char *audiodev,
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strncpy(nmt->smsc_number, smsc_number, sizeof(nmt->smsc_number) - 1);
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/* init audio processing */
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rc = dsp_init_sender(nmt);
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rc = dsp_init_sender(nmt, deviation_factor);
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if (rc < 0) {
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PDEBUG(DNMT, DEBUG_ERROR, "Failed to init audio processing!\n");
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goto error;
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@@ -390,7 +311,9 @@ int nmt_create(int channel, enum nmt_chan_type chan_type, const char *audiodev,
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nmt_go_idle(nmt);
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PDEBUG(DNMT, DEBUG_NOTICE, "Created channel #%d of type '%s' = %s\n", channel, chan_type_short_name(chan_type), chan_type_long_name(chan_type));
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PDEBUG(DNMT, DEBUG_NOTICE, " -> Using traffic area %d,%d and area no %d\n", traffic_area >> 4, (traffic_area & 0xf) % 10, area_no);
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if (nmt_long_name_by_short_name(country))
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PDEBUG(DNMT, DEBUG_NOTICE, " -> Using country '%s'\n", nmt_long_name_by_short_name(country));
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PDEBUG(DNMT, DEBUG_NOTICE, " -> Using traffic area %d,%d and area no %d\n", traffic_area >> 4, traffic_area & 0xf, area_no);
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if (nmt->supervisory)
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PDEBUG(DNMT, DEBUG_NOTICE, " -> Using supervisory signal %d\n", supervisory);
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else
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@@ -721,13 +644,16 @@ static void rx_idle(nmt_t *nmt, frame_t *frame)
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memset(&subscr, 0, sizeof(subscr));
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nmt_value2digits(frame->ms_country, &subscr.country, 1);
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nmt_value2digits(frame->ms_number, subscr.number, 6);
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PDEBUG_CHAN(DNMT, DEBUG_INFO, "Received roaming seizure from subscriber %c,%s\n", subscr.country, subscr.number);
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/* create transaction */
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trans = create_transaction(&subscr);
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if (!trans) {
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PDEBUG(DNMT, DEBUG_NOTICE, "Failed to create transaction!\n");
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break;
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}
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PDEBUG_CHAN(DNMT, DEBUG_INFO, "Received roaming seizure from subscriber %c,%s\n", subscr.country, subscr.number);
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/* change state */
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nmt->trans = trans; /* add transaction before state change, so status is shown correctly */
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nmt_new_state(nmt, STATE_ROAMING_IDENT);
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@@ -747,13 +673,16 @@ static void rx_idle(nmt_t *nmt, frame_t *frame)
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nmt_value2digits(frame->ms_number, subscr.number, 6);
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if (frame->mt == NMT_MESSAGE_12)
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subscr.coinbox = 1;
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PDEBUG_CHAN(DNMT, DEBUG_INFO, "Received call from subscriber %c,%s%s\n", subscr.country, subscr.number, (subscr.coinbox) ? " (coinbox)" : "");
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/* create transaction */
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trans = create_transaction(&subscr);
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if (!trans) {
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PDEBUG(DNMT, DEBUG_NOTICE, "Failed to create transaction!\n");
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break;
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}
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PDEBUG_CHAN(DNMT, DEBUG_INFO, "Received call from subscriber %c,%s%s\n", subscr.country, subscr.number, (subscr.coinbox) ? " (coinbox)" : "");
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/* change state */
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nmt->trans = trans; /* add transaction before state change, so status is shown correctly */
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nmt_new_state(nmt, STATE_MO_IDENT);
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