diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/host/trxcon/trx_if.c | 44 | ||||
| -rw-r--r-- | src/host/trxcon/trx_if.h | 2 |
2 files changed, 46 insertions, 0 deletions
diff --git a/src/host/trxcon/trx_if.c b/src/host/trxcon/trx_if.c index b8bbace5..982fb40d 100644 --- a/src/host/trxcon/trx_if.c +++ b/src/host/trxcon/trx_if.c @@ -391,6 +391,50 @@ int trx_if_cmd_setta(struct trx_instance *trx, int8_t ta) return trx_ctrl_cmd(trx, 0, "SETTA", "%d", ta); } +/* + * Frequency Hopping parameters indication + * + * SETFH instructs transceiver to enable frequency + * hopping mode using the given parameters. + * CMD SETFH <HSN> <MAIO> <CH1> <CH2> [... <CHN>] + */ + +int trx_if_cmd_setfh(struct trx_instance *trx, uint8_t hsn, + uint8_t maio, uint16_t *ma, size_t ma_len) +{ + char ma_buf[100]; + char *ptr; + int i, rc; + + /* No channels, WTF?!? */ + if (!ma_len) + return -EINVAL; + + /** + * Compose a sequence of channels (mobile allocation) + * FIXME: the length of a CTRL command is limited to 128 symbols, + * so we may have some problems if there are many channels... + */ + for (i = 0, ptr = ma_buf; i < ma_len; i++) { + /* Append a channel */ + rc = snprintf(ptr, ma_buf + sizeof(ma_buf) - ptr, "%u ", ma[i]); + if (rc < 0) + return rc; + + /* Move pointer */ + ptr += rc; + + /* Prevent buffer overflow */ + if (ptr >= (ma_buf + 100)) + return -EIO; + } + + /* Overwrite the last space */ + *(ptr - 1) = '\0'; + + return trx_ctrl_cmd(trx, 1, "SETFH", "%u %u %s", hsn, maio, ma_buf); +} + /* Get response from CTRL socket */ static int trx_ctrl_read_cb(struct osmo_fd *ofd, unsigned int what) { diff --git a/src/host/trxcon/trx_if.h b/src/host/trxcon/trx_if.h index be0d41a6..d5512527 100644 --- a/src/host/trxcon/trx_if.h +++ b/src/host/trxcon/trx_if.h @@ -67,6 +67,8 @@ int trx_if_cmd_rxtune(struct trx_instance *trx, uint16_t band_arfcn); int trx_if_cmd_txtune(struct trx_instance *trx, uint16_t band_arfcn); int trx_if_cmd_setslot(struct trx_instance *trx, uint8_t tn, uint8_t type); +int trx_if_cmd_setfh(struct trx_instance *trx, uint8_t hsn, + uint8_t maio, uint16_t *ma, size_t ma_len); int trx_if_cmd_measure(struct trx_instance *trx, uint16_t band_arfcn_start, uint16_t band_arfcn_stop); |