diff options
Diffstat (limited to 'binding/radio_impl_rtlsdr.c')
| -rw-r--r-- | binding/radio_impl_rtlsdr.c | 75 |
1 files changed, 48 insertions, 27 deletions
diff --git a/binding/radio_impl_rtlsdr.c b/binding/radio_impl_rtlsdr.c index 4364fd5..22d627e 100644 --- a/binding/radio_impl_rtlsdr.c +++ b/binding/radio_impl_rtlsdr.c @@ -35,7 +35,7 @@ typedef struct { static fm_band_plan_t known_fm_band_plans[5] = { { .name = "US", .min = 87900000, .max = 107900000, .step = 200000 }, - { .name = "JP", .min = 76100000, .max = 89900000, .step = 100000 }, + { .name = "JP", .min = 76000000, .max = 95000000, .step = 100000 }, { .name = "EU", .min = 87500000, .max = 108000000, .step = 50000 }, { .name = "ITU-1", .min = 87500000, .max = 108000000, .step = 50000 }, { .name = "ITU-2", .min = 87900000, .max = 107900000, .step = 50000 } @@ -46,13 +46,16 @@ static bool present; static bool active; static uint32_t current_frequency; +static uint32_t rtlsdr_get_min_frequency(radio_band_t band); +static void rtlsdr_scan_stop(void); + static void rtl_output_callback(int16_t *result, int result_len, void *ctx) { if(active) radio_output_write((char*) result, result_len * 2); } -int radio_impl_init(void) +static int rtlsdr_init(void) { GKeyFile* conf_file; int conf_file_present = 0; @@ -91,7 +94,7 @@ int radio_impl_init(void) } fprintf(stderr, "Using FM Bandplan: %s\n", known_fm_band_plans[bandplan].name); - current_frequency = radio_impl_get_min_frequency(BAND_FM); + current_frequency = rtlsdr_get_min_frequency(BAND_FM); if(rtl_fm_init(current_frequency, 200000, 48000, rtl_output_callback, NULL) < 0) { return -1; } @@ -106,8 +109,6 @@ int radio_impl_init(void) "radio", "scan_squelch_level", &error); - //error->code != G_KEY_FILE_ERROR_KEY_NOT_FOUND && - //error->code != G_KEY_FILE_ERROR_INVALID_VALUE) { if(!error) { fprintf(stderr, "Scanning squelch level set to %d\n", n); rtl_fm_scan_set_squelch_level(n); @@ -130,12 +131,12 @@ int radio_impl_init(void) return 0; } -uint32_t radio_impl_get_frequency(void) +static uint32_t rtlsdr_get_frequency(void) { return current_frequency; } -void radio_impl_set_frequency(uint32_t frequency) +static void rtlsdr_set_frequency(uint32_t frequency) { if(!present) return; @@ -144,45 +145,45 @@ void radio_impl_set_frequency(uint32_t frequency) frequency > known_fm_band_plans[bandplan].max) return; - radio_impl_scan_stop(); + rtlsdr_scan_stop(); current_frequency = frequency; rtl_fm_set_freq(frequency); } -void radio_impl_set_frequency_callback(radio_freq_callback_t callback, - void *data) +static void rtlsdr_set_frequency_callback(radio_freq_callback_t callback, + void *data) { rtl_fm_set_freq_callback(callback, data); } -radio_band_t radio_impl_get_band(void) +static radio_band_t rtlsdr_get_band(void) { return BAND_FM; } -void radio_impl_set_band(radio_band_t band) +static void rtlsdr_set_band(radio_band_t band) { // We only support FM, so do nothing } -int radio_impl_band_supported(radio_band_t band) +static int rtlsdr_band_supported(radio_band_t band) { if(band == BAND_FM) return 1; return 0; } -uint32_t radio_impl_get_min_frequency(radio_band_t band) +static uint32_t rtlsdr_get_min_frequency(radio_band_t band) { return known_fm_band_plans[bandplan].min; } -uint32_t radio_impl_get_max_frequency(radio_band_t band) +static uint32_t rtlsdr_get_max_frequency(radio_band_t band) { return known_fm_band_plans[bandplan].max; } -uint32_t radio_impl_get_frequency_step(radio_band_t band) +static uint32_t rtlsdr_get_frequency_step(radio_band_t band) { uint32_t ret = 0; @@ -199,7 +200,7 @@ uint32_t radio_impl_get_frequency_step(radio_band_t band) return ret; } -void radio_impl_start(void) +static void rtlsdr_start(void) { if(!present) return; @@ -213,7 +214,7 @@ void radio_impl_start(void) } } -void radio_impl_stop(void) +static void rtlsdr_stop(void) { if(!present) return; @@ -226,29 +227,49 @@ void radio_impl_stop(void) } } -void radio_impl_scan_start(radio_scan_direction_t direction, - radio_scan_callback_t callback, - void *data) +static void rtlsdr_scan_start(radio_scan_direction_t direction, + radio_scan_callback_t callback, + void *data) { rtl_fm_scan_start(direction == SCAN_FORWARD ? 0 : 1, callback, data, - radio_impl_get_frequency_step(BAND_FM), - radio_impl_get_min_frequency(BAND_FM), - radio_impl_get_max_frequency(BAND_FM)); + rtlsdr_get_frequency_step(BAND_FM), + rtlsdr_get_min_frequency(BAND_FM), + rtlsdr_get_max_frequency(BAND_FM)); } -void radio_impl_scan_stop(void) +static void rtlsdr_scan_stop(void) { rtl_fm_scan_stop(); } -radio_stereo_mode_t radio_impl_get_stereo_mode(void) +static radio_stereo_mode_t rtlsdr_get_stereo_mode(void) { return STEREO; } -void radio_impl_set_stereo_mode(radio_stereo_mode_t mode) +static void rtlsdr_set_stereo_mode(radio_stereo_mode_t mode) { // We only support stereo, so do nothing } + +radio_impl_ops_t rtlsdr_impl_ops = { + .name = "RTL-SDR USB adapter", + .init = rtlsdr_init, + .get_frequency = rtlsdr_get_frequency, + .set_frequency = rtlsdr_set_frequency, + .set_frequency_callback = rtlsdr_set_frequency_callback, + .get_band = rtlsdr_get_band, + .set_band = rtlsdr_set_band, + .band_supported = rtlsdr_band_supported, + .get_min_frequency = rtlsdr_get_min_frequency, + .get_max_frequency = rtlsdr_get_max_frequency, + .get_frequency_step = rtlsdr_get_frequency_step, + .start = rtlsdr_start, + .stop = rtlsdr_stop, + .scan_start = rtlsdr_scan_start, + .scan_stop = rtlsdr_scan_stop, + .get_stereo_mode = rtlsdr_get_stereo_mode, + .set_stereo_mode = rtlsdr_set_stereo_mode +}; |