Change in osmo-bts[master]: WIP: bts-trx: Implement power ramping on power on

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pespin gerrit-no-reply at lists.osmocom.org
Tue May 26 17:50:57 UTC 2020


pespin has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-bts/+/18488 )


Change subject: WIP: bts-trx: Implement power ramping on power on
......................................................................

WIP: bts-trx: Implement power ramping on power on

TODO: figure out wheter we send here makes sense, because i think
osmo-trx actually expectes "Power Attenuation".

TODO2: find some way to overwrite hardcoded nominal value for TRXs in
bts_model_init:
"""
/* FIXME: this needs to be overridden with the real hardrware
 * value */
bts->c0->nominal_power = 23;
"""
Change-Id: Ia7c353e4c199e0fc3bcab55c45a4abda2c66d2c1
---
M src/osmo-bts-trx/l1_if.c
M src/osmo-bts-trx/main.c
M src/osmo-bts-trx/trx_if.c
M src/osmo-bts-trx/trx_if.h
4 files changed, 38 insertions(+), 8 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-bts refs/changes/88/18488/1

diff --git a/src/osmo-bts-trx/l1_if.c b/src/osmo-bts-trx/l1_if.c
index b28c894..c4b0915 100644
--- a/src/osmo-bts-trx/l1_if.c
+++ b/src/osmo-bts-trx/l1_if.c
@@ -179,6 +179,8 @@
 		if (rc == 0 && pinst->phy_link->state != PHY_LINK_CONNECTED) {
 			trx_sched_clock_started(pinst->trx->bts);
 			phy_link_state_set(pinst->phy_link, PHY_LINK_CONNECTED);
+			/* Begin to ramp up the power */
+			power_ramp_start(pinst->trx, get_p_target_mdBm(pinst->trx, 0), 0);
 		} else if (rc != 0 && pinst->phy_link->state != PHY_LINK_SHUTDOWN) {
 			trx_sched_clock_stopped(pinst->trx->bts);
 			phy_link_state_set(pinst->phy_link, PHY_LINK_SHUTDOWN);
@@ -186,6 +188,16 @@
 	}
 }
 
+static void l1if_setpower_cb(struct trx_l1h *l1h, int power_db, int rc)
+{
+	struct phy_instance *pinst = l1h->phy_inst;
+
+	LOGPPHI(pinst, DL1C, LOGL_DEBUG, "l1if_setpower_cb(power_db=%d)", power_db);
+
+	l1h->config.power_sent = 0;
+	power_trx_change_compl(pinst->trx, power_db * 1000);
+}
+
 /*
  * transceiver provisioning
  */
@@ -252,7 +264,7 @@
 			l1h->config.rxgain_sent = 1;
 		}
 		if (l1h->config.power_valid && !l1h->config.power_sent) {
-			trx_if_cmd_setpower(l1h, l1h->config.power);
+			trx_if_cmd_setpower(l1h, l1h->config.power, l1if_setpower_cb);
 			l1h->config.power_sent = 1;
 		}
 		if (l1h->config.maxdly_valid && !l1h->config.maxdly_sent) {
@@ -420,7 +432,7 @@
 	}
 
 	if (l1h->config.power_oml) {
-		l1h->config.power = trx->max_power_red;
+		l1h->config.power = power_ramp_initial_power_mdBm(trx);
 		l1h->config.power_valid = 1;
 		l1h->config.power_sent = 0;
 		l1if_provision_transceiver_trx(l1h);
@@ -804,9 +816,9 @@
 
 int bts_model_change_power(struct gsm_bts_trx *trx, int p_trxout_mdBm)
 {
-#warning "implement bts_model_change_power\n"
-	LOGP(DL1C, LOGL_NOTICE, "Setting TRX output power not supported!\n");
-	return 0;
+	struct phy_instance *pinst = trx_phy_instance(trx);
+	struct trx_l1h *l1h = pinst->u.osmotrx.hdl;
+	return trx_if_cmd_setpower(l1h, p_trxout_mdBm / 1000, l1if_setpower_cb);
 }
 
 int bts_model_ts_disconnect(struct gsm_bts_trx_ts *ts)
diff --git a/src/osmo-bts-trx/main.c b/src/osmo-bts-trx/main.c
index ab0472e..8f89051 100644
--- a/src/osmo-bts-trx/main.c
+++ b/src/osmo-bts-trx/main.c
@@ -125,6 +125,7 @@
 
 int bts_model_trx_init(struct gsm_bts_trx *trx)
 {
+	trx->power_params.trx_p_max_out_mdBm = to_mdB(trx->bts->c0->nominal_power);
 	return 0;
 }
 
diff --git a/src/osmo-bts-trx/trx_if.c b/src/osmo-bts-trx/trx_if.c
index f717a0c..aee9e08 100644
--- a/src/osmo-bts-trx/trx_if.c
+++ b/src/osmo-bts-trx/trx_if.c
@@ -302,9 +302,9 @@
 }
 
 /*! Send "SETPOWER" command to TRX */
-int trx_if_cmd_setpower(struct trx_l1h *l1h, int db)
+int trx_if_cmd_setpower(struct trx_l1h *l1h, int power_db, trx_if_cmd_setpower_cb *cb)
 {
-	return trx_ctrl_cmd(l1h, 0, "SETPOWER", "%d", db);
+	return trx_ctrl_cmd(l1h, 0, "SETPOWER", "%d", power_db);
 }
 
 /*! Send "SETMAXDLY" command to TRX, i.e. maximum delay for RACH bursts */
@@ -543,6 +543,20 @@
 	return 0;
 }
 
+static int trx_ctrl_rx_rsp_setpower(struct trx_l1h *l1h, struct trx_ctrl_rsp *rsp)
+{
+	trx_if_cmd_setpower_cb *cb = (trx_if_cmd_setpower_cb*) rsp->cb;
+	int power;
+
+	if (!cb)
+		return 0;
+
+	sscanf(rsp->params, "%d", &power);
+	if (cb)
+		cb(l1h, power, rsp->status);
+	return 0;
+}
+
 /* -EINVAL: unrecoverable error, exit BTS
  * N > 0: try sending originating command again after N seconds
  * 0: Done with response, get originating command out from send queue
@@ -561,6 +575,8 @@
 	 * so that's why we should use tcm instead of rsp. */
 	} else if (strcmp(tcm->cmd, "SETFORMAT") == 0) {
 		return trx_ctrl_rx_rsp_setformat(l1h, rsp);
+	} else if (strcmp(tcm->cmd, "SETPOWER") == 0) {
+		return trx_ctrl_rx_rsp_setpower(l1h, rsp);
 	}
 
 	if (rsp->status) {
diff --git a/src/osmo-bts-trx/trx_if.h b/src/osmo-bts-trx/trx_if.h
index fd0077d..44f73c4 100644
--- a/src/osmo-bts-trx/trx_if.h
+++ b/src/osmo-bts-trx/trx_if.h
@@ -15,6 +15,7 @@
 
 typedef void trx_if_cmd_poweronoff_cb(struct trx_l1h *l1h, bool poweronoff, int rc);
 typedef void trx_if_cmd_setslot_cb(struct trx_l1h *l1h, uint8_t tn, uint8_t type, int rc);
+typedef void trx_if_cmd_setpower_cb(struct trx_l1h *l1h, int power_db, int rc);
 
 void trx_if_init(struct trx_l1h *l1h);
 int trx_if_cmd_poweroff(struct trx_l1h *l1h, trx_if_cmd_poweronoff_cb *cb);
@@ -22,7 +23,7 @@
 int trx_if_cmd_settsc(struct trx_l1h *l1h, uint8_t tsc);
 int trx_if_cmd_setbsic(struct trx_l1h *l1h, uint8_t bsic);
 int trx_if_cmd_setrxgain(struct trx_l1h *l1h, int db);
-int trx_if_cmd_setpower(struct trx_l1h *l1h, int db);
+int trx_if_cmd_setpower(struct trx_l1h *l1h, int power_db, trx_if_cmd_setpower_cb *cb);
 int trx_if_cmd_setmaxdly(struct trx_l1h *l1h, int dly);
 int trx_if_cmd_setmaxdlynb(struct trx_l1h *l1h, int dly);
 int trx_if_cmd_setslot(struct trx_l1h *l1h, uint8_t tn, uint8_t type, trx_if_cmd_setslot_cb *cb);

-- 
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Gerrit-Project: osmo-bts
Gerrit-Branch: master
Gerrit-Change-Id: Ia7c353e4c199e0fc3bcab55c45a4abda2c66d2c1
Gerrit-Change-Number: 18488
Gerrit-PatchSet: 1
Gerrit-Owner: pespin <pespin at sysmocom.de>
Gerrit-MessageType: newchange
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