diff options
| -rw-r--r-- | binding/radio-binding.c | 32 | ||||
| -rw-r--r-- | binding/radio_impl.h | 2 | ||||
| -rw-r--r-- | binding/radio_impl_kingfisher.c | 40 |
3 files changed, 71 insertions, 3 deletions
diff --git a/binding/radio-binding.c b/binding/radio-binding.c index 715ec35..3f34150 100644 --- a/binding/radio-binding.c +++ b/binding/radio-binding.c @@ -23,12 +23,15 @@ #include <unistd.h> #include <sys/types.h> #include <json-c/json.h> + #include <afb/afb-binding.h> #include "radio_impl.h" #include "radio_impl_rtlsdr.h" #include "radio_impl_kingfisher.h" +#define RADIO_MODE_NAME_MAXLEN 8 + static radio_impl_ops_t *radio_impl_ops; static struct afb_event freq_event; @@ -84,6 +87,30 @@ static void frequency(struct afb_req request) afb_req_success(request, ret_json, NULL); } +/* @brief Get RDS information +* +* @param struct afb_req : an afb request structure +* +*/ +static void rds(struct afb_req request) +{ + json_object *ret_json; + char * rds; + + if (radio_impl_ops->get_rds_info == NULL) { + afb_req_fail(request, "failed", "not supported"); + return; + } + + ret_json = json_object_new_object(); + + rds = radio_impl_ops->get_rds_info(); + json_object_object_add(ret_json, "rds", json_object_new_string(rds?rds:"")); + free(rds); + + afb_req_success(request, ret_json, NULL); +} + /* * @brief Get (and optionally set) frequency band * @@ -364,7 +391,7 @@ static void stereo_mode(struct afb_req request) const char *value = afb_req_value(request, "value"); int valid = 0; radio_stereo_mode_t mode; - char mode_name[4]; + char mode_name[RADIO_MODE_NAME_MAXLEN]; if(value) { if(!strcasecmp(value, "mono")) { @@ -396,7 +423,7 @@ static void stereo_mode(struct afb_req request) } ret_json = json_object_new_object(); mode = radio_impl_ops->get_stereo_mode(); - sprintf(mode_name, "%s", mode == MONO ? "mono" : "stereo"); + snprintf(mode_name, RADIO_MODE_NAME_MAXLEN, "%s", mode == MONO ? "mono" : "stereo"); json_object_object_add(ret_json, "mode", json_object_new_string(mode_name)); afb_req_success(request, ret_json, NULL); } @@ -448,6 +475,7 @@ static void unsubscribe(struct afb_req request) static const struct afb_verb_v2 verbs[]= { { .verb = "frequency", .session = AFB_SESSION_NONE, .callback = frequency, .info = "Get/Set frequency" }, { .verb = "band", .session = AFB_SESSION_NONE, .callback = band, .info = "Get/Set band" }, + { .verb = "rds", .session = AFB_SESSION_NONE, .callback = rds, .info = "Get RDS information" }, { .verb = "band_supported", .session = AFB_SESSION_NONE, .callback = band_supported, .info = "Check band support" }, { .verb = "frequency_range", .session = AFB_SESSION_NONE, .callback = frequency_range, .info = "Get frequency range" }, { .verb = "frequency_step", .session = AFB_SESSION_NONE, .callback = frequency_step, .info = "Get frequency step" }, diff --git a/binding/radio_impl.h b/binding/radio_impl.h index f745f12..49efe24 100644 --- a/binding/radio_impl.h +++ b/binding/radio_impl.h @@ -76,6 +76,8 @@ typedef struct { void (*set_stereo_mode)(radio_stereo_mode_t mode); + char * (*get_rds_info)(void); + } radio_impl_ops_t; #endif /* _RADIO_IMPL_H */ diff --git a/binding/radio_impl_kingfisher.c b/binding/radio_impl_kingfisher.c index d88176d..e183c1b 100644 --- a/binding/radio_impl_kingfisher.c +++ b/binding/radio_impl_kingfisher.c @@ -250,6 +250,43 @@ static void kf_set_frequency_callback(radio_freq_callback_t callback, freq_callback_data = data; } +static char * kf_get_rds_info(void) { + char cmd[SI_CTL_CMDLINE_MAXLEN]; + char line[SI_CTL_OUTPUT_MAXLEN]; + char * rds = NULL; + FILE *fp; + + if (scanning) + goto done; + + snprintf(cmd, SI_CTL_CMDLINE_MAXLEN, "%s /dev/i2c-12 0x65 -m", SI_CTL); + fp = popen(cmd, "r"); + if(fp == NULL) { + fprintf(stderr, "Could not run: %s!\n", cmd); + goto done; + } + // Look for "Name:" in output + while (fgets(line, SI_CTL_OUTPUT_MAXLEN, fp) != NULL) { + + char* nS = strstr(line, "Name:"); + char * end; + if (!nS) + continue; + + end = nS+strlen("Name:"); + /* remove the trailing \n */ + end[strlen(end)-1] = '\0'; + + rds = strdup(end); + break; + } + + // Make sure si_ctl has finished + pclose(fp); +done: + return rds; +} + static radio_band_t kf_get_band(void) { return BAND_FM; @@ -417,5 +454,6 @@ radio_impl_ops_t kf_impl_ops = { .scan_start = kf_scan_start, .scan_stop = kf_scan_stop, .get_stereo_mode = kf_get_stereo_mode, - .set_stereo_mode = kf_set_stereo_mode + .set_stereo_mode = kf_set_stereo_mode, + .get_rds_info = kf_get_rds_info }; |