drivers: add kw41zrf

boards/common/kw41z/Makefile.dep

@@ -2,3 +2,7 @@ ifneq (,$(filter saul_default,$(USEMODULE)))
   USEMODULE += saul_adc
   USEMODULE += saul_gpio
 endif
+
+ifneq (,$(filter netdev_default gnrc_netdev_default,$(USEMODULE)))
+  USEMODULE += kw41zrf
+endif

boards/openlabs-kw41z-mini/Makefile.dep

@@ -3,7 +3,6 @@ ifneq (,$(filter saul_default,$(USEMODULE)))
   USEMODULE += saul_gpio
 endif
 
-# TODO uncomment after #12277 (add support for kw41zrf) is merged
-# ifneq (,$(filter netdev_default gnrc_netdev_default,$(USEMODULE)))
-#   USEMODULE += kw41zrf
-# endif
+ifneq (,$(filter netdev_default gnrc_netdev_default,$(USEMODULE)))
+  USEMODULE += kw41zrf
+endif

drivers/Makefile.dep

@@ -340,6 +340,16 @@ ifneq (,$(filter kw2xrf,$(USEMODULE)))
   FEATURES_REQUIRED += periph_gpio_irq
 endif
 
+ifneq (,$(filter kw41zrf,$(USEMODULE)))
+  USEMODULE += luid
+  USEMODULE += netif
+  USEMODULE += ieee802154
+  USEMODULE += netdev_ieee802154
+  USEMODULE += core_thread_flags
+  USEMODULE += random
+  USEMODULE += mcux_xcvr_mkw41z
+endif
+
 ifneq (,$(filter l3g4200d,$(USEMODULE)))
   FEATURES_REQUIRED += periph_i2c
 endif

drivers/Makefile.include

@@ -180,6 +180,10 @@ ifneq (,$(filter kw2xrf,$(USEMODULE)))
   USEMODULE_INCLUDES += $(RIOTBASE)/drivers/kw2xrf/include
 endif
 
+ifneq (,$(filter kw41zrf,$(USEMODULE)))
+  USEMODULE_INCLUDES += $(RIOTBASE)/drivers/kw41zrf/include
+endif
+
 ifneq (,$(filter l3g4200d,$(USEMODULE)))
   USEMODULE_INCLUDES += $(RIOTBASE)/drivers/l3g4200d/include
 endif

drivers/include/kw41zrf.h

@@ -0,0 +1,170 @@
+/*
+ * Copyright (C) 2017 SKF AB
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @defgroup    drivers_kw41zrf KW41Z radio-driver
+ * @ingroup     drivers_netdev
+ * @brief       Device driver for the NXP KW41Z, KW21Z in-cpu transceiver
+ * @{
+ *
+ * @file
+ * @brief       Interface definition for the kw41zrf driver
+ *
+ * @author      Joakim Nohlgård <joakim.nohlgard@eistec.se>
+ */
+
+#ifndef KW41ZRF_H
+#define KW41ZRF_H
+
+#include <stdint.h>
+
+#include "mutex.h"
+#include "board.h"
+#include "net/netdev.h"
+#include "net/netdev/ieee802154.h"
+#include "net/gnrc/nettype.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief   Maximum packet length
+ */
+#define KW41ZRF_MAX_PKT_LENGTH           (IEEE802154_FRAME_LEN_MAX)
+
+/**
+ * @brief   Default channel used after initialization
+ *
+ * @{
+ */
+#ifndef KW41ZRF_DEFAULT_CHANNEL
+#define KW41ZRF_DEFAULT_CHANNEL          (IEEE802154_DEFAULT_CHANNEL)
+#endif
+/** @} */
+
+/**
+ * @brief   Default CCA threshold
+ *
+ * @{
+ */
+#ifndef KW41ZRF_DEFAULT_CCA_THRESHOLD
+#define KW41ZRF_DEFAULT_CCA_THRESHOLD    (-60)
+#endif
+/** @} */
+
+/**
+ * @brief   Default LQI compensation
+ *
+ * @{
+ */
+#ifndef KW41ZRF_DEFAULT_LQI_COMPENSATION
+#define KW41ZRF_DEFAULT_LQI_COMPENSATION (102)
+#endif
+/** @} */
+
+/**
+ * @brief   Allowed range of channels
+ *
+ * @{
+ */
+#define KW41ZRF_MIN_CHANNEL              (11U)
+#define KW41ZRF_MAX_CHANNEL              (26U)
+/** @} */
+
+/**
+ * @brief   Default TX_POWER in dbm used after initialization
+ */
+#define KW41ZRF_DEFAULT_TX_POWER         (IEEE802154_DEFAULT_TXPOWER)
+
+/**
+ * @brief   Maximum output power of the kw41z device in dBm
+ */
+#define KW41ZRF_OUTPUT_POWER_MAX       (4)
+
+/**
+ * @brief   Minimum output power of the kw41z device in dBm
+ */
+#define KW41ZRF_OUTPUT_POWER_MIN       (-19)
+
+/**
+ * @brief ISR callback function type
+ */
+typedef void (*kw41zrf_cb_t)(void *arg);
+
+/**
+ * @brief   Device descriptor for KW41ZRF radio devices
+ *
+ * @extends netdev_ieee802154_t
+ */
+typedef struct {
+    netdev_ieee802154_t netdev; /**< netdev parent struct */
+    /**
+     * @name   device specific fields
+     * @{
+     */
+    thread_t *thread;           /**< Network driver thread, for providing feedback from IRQ handler */
+    uint32_t tx_warmup_time;    /**< TX warmup time, in event timer ticks */
+    uint32_t rx_warmup_time;    /**< RX warmup time, in event timer ticks */
+    uint32_t rf_osc_en_idle;    /**< RF_OSC_EN bits setting when RF module is in standby */
+    int16_t tx_power;           /**< The current tx-power setting of the device */
+    uint8_t flags;              /**< Internal driver option flags */
+    uint8_t max_retrans;        /**< Maximum number of frame retransmissions
+                                 *   when no Ack frame is received (macMaxFrameRetries) */
+    uint8_t csma_max_backoffs;  /**< Maximum number of CSMA backoffs when
+                                 *   waiting for channel clear (macMaxCsmaBackoffs) */
+    uint8_t csma_min_be;        /**< Minimum backoff exponent (macMinBe) */
+    uint8_t csma_max_be;        /**< Maximum backoff exponent (macMaxBe) */
+    uint8_t idle_seq;           /**< state to return to after sending */
+    uint8_t cca_result;         /**< Used for passing CCA result from ISR to user */
+    uint8_t csma_be;            /**< Counter used internally by send implementation */
+    uint8_t csma_num_backoffs;  /**< Counter used internally by send implementation */
+    uint8_t num_retrans;        /**< Counter used internally by send implementation */
+    uint32_t backoff_delay;     /**< CSMA delay for the current TX operation */
+    uint32_t tx_timeout;        /**< Used to timeout waiting for ACK during TRX */
+    uint8_t pm_blocked;         /**< true if we have blocked a low power mode in the CPU */
+    uint8_t recv_blocked;       /**< blocks moving to XCVSEQ_RECEIVE to prevent
+                                 *   overwriting the RX buffer before the higher
+                                 *   layers have copied it to system RAM */
+    /** @} */
+} kw41zrf_t;
+
+/**
+ * @brief   Setup an KW41ZRF based device state
+ *
+ * @param[out] dev          device descriptor
+ */
+void kw41zrf_setup(kw41zrf_t *dev);
+
+/**
+ * @brief   Initialize the given KW41ZRF device
+ *
+ * @param[out] dev          device descriptor
+ * @param[in]  cb           irq callback
+ *
+ * @return                  0 on success
+ * @return                  <0 on error
+ */
+int kw41zrf_init(kw41zrf_t *dev, kw41zrf_cb_t cb);
+
+/**
+ * @brief   Reset radio hardware and restore default settings
+ *
+ * @param[in] dev           device to reset
+ *
+ * @return 0 on success
+ * @return <0 on initialization failure
+ */
+int kw41zrf_reset(kw41zrf_t *dev);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* KW41ZRF_H */
+/** @} */

drivers/kw41zrf/Makefile

@@ -0,0 +1,4 @@
+# Use vendor-supplied low level XCVR hardware initialization
+DIRS += vendor/XCVR/MKW41Z4
+
+include $(RIOTBASE)/Makefile.base