From 5fb8db4cfd8a8b44c632078f7793a872bd166b6b Mon Sep 17 00:00:00 2001
From: Alexandre Abadie <alexandre.abadie@inria.fr>
Date: Thu, 5 Oct 2017 22:34:50 +0200
Subject: [PATCH] drivers/sx127x: fix set modem logic
---
drivers/sx127x/sx127x_getset.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/sx127x/sx127x_getset.c b/drivers/sx127x/sx127x_getset.c
index 1da4e987cd..08df09682a 100644
--- a/drivers/sx127x/sx127x_getset.c
+++ b/drivers/sx127x/sx127x_getset.c
@@ -63,6 +63,20 @@ void sx127x_set_state(sx127x_t *dev, uint8_t state)
void sx127x_set_modem(sx127x_t *dev, uint8_t modem)
{
+ if ((sx127x_reg_read(dev, SX127X_REG_OPMODE) & SX127X_RF_LORA_OPMODE_LONGRANGEMODE_ON) != 0) {
+ dev->settings.modem = SX127X_MODEM_LORA;
+ }
+ else {
+ dev->settings.modem = SX127X_MODEM_FSK;
+ }
+
+ /* Skip if unchanged to avoid resetting the transceiver below (may end up
+ * in crashes) */
+ if (dev->settings.modem == modem) {
+ DEBUG("[DEBUG] already using modem: %d\n", modem);
+ return;
+ }
+
DEBUG("[DEBUG] set modem: %d\n", modem);
dev->settings.modem = modem;
--
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