diff options
Diffstat (limited to 'binding/radio_impl_null.c')
| -rw-r--r-- | binding/radio_impl_null.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/binding/radio_impl_null.c b/binding/radio_impl_null.c index a90835b..b66c025 100644 --- a/binding/radio_impl_null.c +++ b/binding/radio_impl_null.c @@ -52,6 +52,7 @@ static fm_band_plan_t known_fm_band_plans[5] = { static unsigned int bandplan; static bool present; +static bool initialized; static bool active; static bool scanning; static uint32_t current_frequency; @@ -60,7 +61,12 @@ static void *freq_callback_data; static uint32_t null_get_min_frequency(radio_band_t band); static void null_set_frequency(uint32_t frequency); -//static void null_scan_stop(void); + +static int null_probe(void) +{ + present = true; + return 0; +} static int null_init(void) { @@ -69,7 +75,10 @@ static int null_init(void) char *rootdir; char *helper_path; - if(present) + if(!present) + return -1; + + if(initialized) return 0; // Load settings from configuration file if it exists @@ -103,7 +112,7 @@ static int null_init(void) // Start off with minimum bandplan frequency current_frequency = null_get_min_frequency(BAND_FM); - present = true; + initialized = true; null_set_frequency(current_frequency); return 0; @@ -184,7 +193,7 @@ static uint32_t null_get_frequency_step(radio_band_t band) static void null_start(void) { - if(!present) + if(!initialized) return; if(active) @@ -195,7 +204,7 @@ static void null_start(void) static void null_stop(void) { - if(!present) + if(!initialized) return; if (!active) @@ -251,6 +260,7 @@ static void null_set_stereo_mode(radio_stereo_mode_t mode) radio_impl_ops_t null_impl_ops = { .name = "null/mock radio", + .probe = null_probe, .init = null_init, .set_output = null_set_output, .get_frequency = null_get_frequency, |