From 4583fff0944a7c008abffa2e7109a6ccd7469d83 Mon Sep 17 00:00:00 2001
From: Simon Duquennoy <simon.duquennoy@ri.se>
Date: Wed, 3 Oct 2018 12:42:06 +0200
Subject: [PATCH] Radio API: added values/objects for TSCH constants

---
 arch/cpu/cc2538/dev/cc2538-rf.c | 22 +++++++++++++++++++++
 arch/dev/cc1200/cc1200.c        | 35 +++++++++++++++++++++++++++++++++
 os/dev/radio.h                  |  9 ++++++++-
 3 files changed, 65 insertions(+), 1 deletion(-)

diff --git a/arch/cpu/cc2538/dev/cc2538-rf.c b/arch/cpu/cc2538/dev/cc2538-rf.c
index eea715653..990f0f787 100644
--- a/arch/cpu/cc2538/dev/cc2538-rf.c
+++ b/arch/cpu/cc2538/dev/cc2538-rf.c
@@ -862,6 +862,20 @@ get_value(radio_param_t param, radio_value_t *value)
   case RADIO_CONST_TXPOWER_MAX:
     *value = OUTPUT_POWER_MAX;
     return RADIO_RESULT_OK;
+  case RADIO_CONST_PHY_OVERHEAD:
+    *value = (radio_value_t)3; /* 1 len byte, 2 bytes CRC */
+  case RADIO_CONST_BYTE_AIR_TIME:
+    *value = (radio_value_t)32; /* 250kbps data rate. One byte = 32us.*/
+    return RADIO_RESULT_OK;
+  case RADIO_CONST_DELAY_BEFORE_TX:
+    *value = (radio_value_t)CC2538_DELAY_BEFORE_TX;
+    return RADIO_RESULT_OK;
+  case RADIO_CONST_DELAY_BEFORE_RX:
+    *value = (radio_value_t)CC2538_DELAY_BEFORE_RX;
+    return RADIO_RESULT_OK;
+  case RADIO_CONST_DELAY_BEFORE_DETECT:
+    *value = (radio_value_t)CC2538_DELAY_BEFORE_DETECT;
+    return RADIO_RESULT_OK;
   default:
     return RADIO_RESULT_NOT_SUPPORTED;
   }
@@ -957,6 +971,14 @@ get_object(radio_param_t param, void *dest, size_t size)
     return RADIO_RESULT_OK;
   }
 
+  if(param == RADIO_CONST_TSCH_TIMING) {
+    if(size != sizeof(uint16_t *) || !dest) {
+      return RADIO_RESULT_INVALID_VALUE;
+    }
+    *(uint16_t **)dest = tsch_timeslot_timing_us_10000;
+    return RADIO_RESULT_OK;
+  }
+
   return RADIO_RESULT_NOT_SUPPORTED;
 }
 /*---------------------------------------------------------------------------*/
diff --git a/arch/dev/cc1200/cc1200.c b/arch/dev/cc1200/cc1200.c
index 3d9b1befc..d61618b6a 100644
--- a/arch/dev/cc1200/cc1200.c
+++ b/arch/dev/cc1200/cc1200.c
@@ -1180,6 +1180,34 @@ get_value(radio_param_t param, radio_value_t *value)
     *value = (radio_value_t)CC1200_RF_CFG.max_txpower;
     return RADIO_RESULT_OK;
 
+  case RADIO_CONST_PHY_OVERHEAD:
+#if CC1200_802154G
+#if CC1200_802154G_CRC16
+    *value = (radio_value_t)4; /* 2 bytes PHR, 2 bytes CRC */
+#else
+    *value = (radio_value_t)6; /* 2 bytes PHR, 4 bytes CRC */
+#endif
+#else
+    *value = (radio_value_t)3; /* 1 len byte, 2 bytes CRC */
+#endif
+    return RADIO_RESULT_OK;
+
+  case RADIO_CONST_BYTE_AIR_TIME:
+      *value = (radio_value_t)8*1000*1000 / CC1200_RF_CFG.bitrate;
+      return RADIO_RESULT_OK;
+
+  case RADIO_CONST_DELAY_BEFORE_TX:
+    *value = (radio_value_t)CC1200_RF_CFG.delay_before_tx;
+    return RADIO_RESULT_OK;
+
+  case RADIO_CONST_DELAY_BEFORE_RX:
+      *value = (radio_value_t)CC1200_RF_CFG.delay_before_rx;
+      return RADIO_RESULT_OK;
+
+  case RADIO_CONST_DELAY_BEFORE_DETECT:
+      *value = (radio_value_t)CC1200_RF_CFG.delay_before_detect;
+      return RADIO_RESULT_OK;
+
   default:
 
     return RADIO_RESULT_NOT_SUPPORTED;
@@ -1282,6 +1310,13 @@ set_value(radio_param_t param, radio_value_t value)
 static radio_result_t
 get_object(radio_param_t param, void *dest, size_t size)
 {
+  if(param == RADIO_CONST_TSCH_TIMING) {
+    if(size != sizeof(uint16_t *) || !dest) {
+      return RADIO_RESULT_INVALID_VALUE;
+    }
+    *(uint16_t **)dest = CC1200_RF_CFG.tsch_timing;
+    return RADIO_RESULT_OK;
+  }
 
   return RADIO_RESULT_NOT_SUPPORTED;
 
diff --git a/os/dev/radio.h b/os/dev/radio.h
index 9bbef9619..e6ca64f3d 100644
--- a/os/dev/radio.h
+++ b/os/dev/radio.h
@@ -183,7 +183,14 @@ enum {
   /* The minimum transmission power in dBm. */
   RADIO_CONST_TXPOWER_MIN,
   /* The maximum transmission power in dBm. */
-  RADIO_CONST_TXPOWER_MAX
+  RADIO_CONST_TXPOWER_MAX,
+
+  RADIO_CONST_TSCH_TIMING,
+  RADIO_CONST_PHY_OVERHEAD,
+  RADIO_CONST_BYTE_AIR_TIME,
+  RADIO_CONST_DELAY_BEFORE_TX,
+  RADIO_CONST_DELAY_BEFORE_RX,
+  RADIO_CONST_DELAY_BEFORE_DETECT,
 };
 
 /* Radio power modes */