From ba739f679e958ab29a328cb9f982e0857974042d Mon Sep 17 00:00:00 2001
From: Simon Duquennoy <simon.duquennoy@inria.fr>
Date: Fri, 23 Sep 2016 09:39:58 +0200
Subject: [PATCH] cc1200: configurable tx-rx turaround time

---
 dev/cc1200/cc1200-802154g-863-870-fsk-50kbps.c | 1 +
 dev/cc1200/cc1200-868-fsk-1-2kbps.c            | 1 +
 dev/cc1200/cc1200-rf-cfg.h                     | 2 ++
 dev/cc1200/cc1200.c                            | 2 +-
 4 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/dev/cc1200/cc1200-802154g-863-870-fsk-50kbps.c b/dev/cc1200/cc1200-802154g-863-870-fsk-50kbps.c
index f7e7a0b62..0fe452999 100644
--- a/dev/cc1200/cc1200-802154g-863-870-fsk-50kbps.c
+++ b/dev/cc1200/cc1200-802154g-863-870-fsk-50kbps.c
@@ -158,6 +158,7 @@ const cc1200_rf_cfg_t cc1200_802154g_863_870_fsk_50kbps = {
   .register_settings = preferredSettings,
   .size_of_register_settings = sizeof(preferredSettings),
   .tx_pkt_lifetime = (RTIMER_SECOND / 20),
+  .tx_rx_turnaround = (RTIMER_SECOND / 100),
   .chan_center_freq0 = RF_CFG_CHAN_CENTER_F0,
   .chan_spacing = RF_CFG_CHAN_SPACING,
   .min_channel = RF_CFG_MIN_CHANNEL,
diff --git a/dev/cc1200/cc1200-868-fsk-1-2kbps.c b/dev/cc1200/cc1200-868-fsk-1-2kbps.c
index 390779e1f..7c8d52cb4 100644
--- a/dev/cc1200/cc1200-868-fsk-1-2kbps.c
+++ b/dev/cc1200/cc1200-868-fsk-1-2kbps.c
@@ -125,6 +125,7 @@ const cc1200_rf_cfg_t cc1200_868_fsk_1_2kbps = {
   .register_settings = preferredSettings,
   .size_of_register_settings = sizeof(preferredSettings),
   .tx_pkt_lifetime = (2 * RTIMER_SECOND),
+  .tx_rx_turnaround = (RTIMER_SECOND / 2),
   .chan_center_freq0 = RF_CFG_CHAN_CENTER_F0,
   .chan_spacing = RF_CFG_CHAN_SPACING,
   .min_channel = RF_CFG_MIN_CHANNEL,
diff --git a/dev/cc1200/cc1200-rf-cfg.h b/dev/cc1200/cc1200-rf-cfg.h
index 57af1f85a..4b206959b 100644
--- a/dev/cc1200/cc1200-rf-cfg.h
+++ b/dev/cc1200/cc1200-rf-cfg.h
@@ -67,6 +67,8 @@ typedef struct cc1200_rf_cfg {
    * synch word + phy header, payload + CRC.
    */
   rtimer_clock_t tx_pkt_lifetime;
+  /* The maximum time it takes to switch from Tx to Rx */
+  rtimer_clock_t tx_rx_turnaround;
   /* Base frequency in kHz */
   uint32_t chan_center_freq0;
   /* Channel spacing in Hz */
diff --git a/dev/cc1200/cc1200.c b/dev/cc1200/cc1200.c
index 6cb1d1be6..fef495e31 100644
--- a/dev/cc1200/cc1200.c
+++ b/dev/cc1200/cc1200.c
@@ -802,7 +802,7 @@ transmit(unsigned short transmit_len)
      */
 
     BUSYWAIT_UNTIL_STATE(STATE_RX,
-                         RTIMER_SECOND / 100);
+        CC1200_RF_CFG.tx_rx_turnaround);
 
     ENABLE_GPIO_INTERRUPTS();