From 38e9ea3f7f385c6660c5958970af5c71adc1682b Mon Sep 17 00:00:00 2001
From: Alexander Couzens <lynxis@fe80.eu>
Date: Tue, 23 Aug 2016 06:27:19 +0200
Subject: [PATCH] bsc: count the usage of codec by setting the lchan active

we count the codec when the channel was successful setted up

Change-Id: Ifc8a406a11dce16b9e7f3310841e470545550a2c
---
 openbsc/include/openbsc/gsm_data.h | 10 +++++++++
 openbsc/src/libbsc/abis_rsl.c      | 35 ++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)

diff --git a/openbsc/include/openbsc/gsm_data.h b/openbsc/include/openbsc/gsm_data.h
index ffb7dd226..5829c8d11 100644
--- a/openbsc/include/openbsc/gsm_data.h
+++ b/openbsc/include/openbsc/gsm_data.h
@@ -168,6 +168,11 @@ enum {
 	BSC_CTR_CHAN_RLL_ERR,
 	BSC_CTR_BTS_OML_FAIL,
 	BSC_CTR_BTS_RSL_FAIL,
+	BSC_CTR_CODEC_AMR_F,
+	BSC_CTR_CODEC_AMR_H,
+	BSC_CTR_CODEC_EFR,
+	BSC_CTR_CODEC_V1_FR,
+	BSC_CTR_CODEC_V1_HR,
 };
 
 static const struct rate_ctr_desc bsc_ctr_description[] = {
@@ -186,6 +191,11 @@ static const struct rate_ctr_desc bsc_ctr_description[] = {
 	[BSC_CTR_CHAN_RLL_ERR] = 		{"chan.rll_err", "Received a RLL failure with T200 cause from BTS."},
 	[BSC_CTR_BTS_OML_FAIL] = 		{"bts.oml_fail", "Received a TEI down on a OML link."},
 	[BSC_CTR_BTS_RSL_FAIL] = 		{"bts.rsl_fail", "Received a TEI down on a OML link."},
+	[BSC_CTR_CODEC_AMR_F] =			{"bts.codec_amr_f", "Count the usage of AMR/F codec by channel mode requested."},
+	[BSC_CTR_CODEC_AMR_H] =			{"bts.codec_amr_h", "Count the usage of AMR/H codec by channel mode requested."},
+	[BSC_CTR_CODEC_EFR] = 			{"bts.codec_efr", "Count the usage of EFR codec by channel mode requested."},
+	[BSC_CTR_CODEC_V1_FR] =			{"bts.codec_fr", "Count the usage of FR codec by channel mode requested."},
+	[BSC_CTR_CODEC_V1_HR] =			{"bts.codec_hr", "Count the usage of HR codec by channel mode requested."},
 };
 
 enum {
diff --git a/openbsc/src/libbsc/abis_rsl.c b/openbsc/src/libbsc/abis_rsl.c
index dc4ede294..ae88f8c1d 100644
--- a/openbsc/src/libbsc/abis_rsl.c
+++ b/openbsc/src/libbsc/abis_rsl.c
@@ -82,6 +82,39 @@ static void do_lchan_free(struct gsm_lchan *lchan)
 	lchan_free(lchan);
 }
 
+static void count_codecs(struct gsm_bts *bts, struct gsm_lchan *lchan)
+{
+	if (lchan->type == GSM_LCHAN_TCH_H) {
+		switch (lchan->tch_mode) {
+		case GSM48_CMODE_SPEECH_AMR:
+			rate_ctr_inc(&bts->network->bsc_ctrs->ctr[BSC_CTR_CODEC_AMR_H]);
+			break;
+		case GSM48_CMODE_SPEECH_V1:
+			rate_ctr_inc(&bts->network->bsc_ctrs->ctr[BSC_CTR_CODEC_V1_HR]);
+			break;
+		default:
+			break;
+		}
+	} else if (lchan->type == GSM_LCHAN_TCH_F) {
+		switch (lchan->tch_mode) {
+		case GSM48_CMODE_SPEECH_AMR:
+			rate_ctr_inc(&bts->network->bsc_ctrs->ctr[BSC_CTR_CODEC_AMR_F]);
+			break;
+		case GSM48_CMODE_SPEECH_V1:
+			rate_ctr_inc(&bts->network->bsc_ctrs->ctr[BSC_CTR_CODEC_V1_FR]);
+			break;
+		case GSM48_CMODE_SPEECH_EFR:
+			rate_ctr_inc(&bts->network->bsc_ctrs->ctr[BSC_CTR_CODEC_EFR]);
+			break;
+		default:
+			break;
+		}
+	} else {
+		LOGP(DRSL, LOGL_ERROR, "count_codecs unknown lchan->type %x on channel %s\n",
+		     lchan->type, gsm_ts_and_pchan_name(lchan->ts));
+	}
+}
+
 static uint8_t mdisc_by_msgtype(uint8_t msg_type)
 {
 	/* mask off the transparent bit ? */
@@ -1170,6 +1203,7 @@ static int rsl_rx_chan_act_ack(struct msgb *msg)
 		lchan->rqd_ta = 0;
 	}
 
+	count_codecs(msg->trx->bts, lchan);
 	send_lchan_signal(S_LCHAN_ACTIVATE_ACK, lchan, NULL);
 
 	return 0;
@@ -1479,6 +1513,7 @@ static int abis_rsl_rx_dchan(struct msgb *msg)
 		rc = rsl_rx_rf_chan_rel_ack(msg->lchan);
 		break;
 	case RSL_MT_MODE_MODIFY_ACK:
+		count_codecs(msg->trx->bts, msg->lchan);
 		DEBUGP(DRSL, "%s CHANNEL MODE MODIFY ACK\n", ts_name);
 		break;
 	case RSL_MT_MODE_MODIFY_NACK: