drivers/wireless/generic/Kconfig

@@ -21,6 +21,15 @@ config GENERICRADIO_SI4463
 
 if GENERICRADIO_SI4463
 
+config GENERICRADIO_SI4463_ANTSWITCH_ALT
+  bool "Alternate TX/RX switching using dedicated GPIO setup"
+  default n
+  ---help---
+    The si4463 has the ability to drive GPIO pins to activate PA/LNA, but these are only active high,
+    with no internal way to invert the signals. If inverted signals are required, and you cant invert
+    the signals with external hardware, use this option, but be aware that TX/RX switching time will
+    be slower since a GPIO setup command has to be sent via before/after each transmission and reception.
+
 choice
   prompt "Packet framing"
   default GENERICRADIO_SI4463_FRAMING_L2B

drivers/wireless/generic/si4463.h

 /****************************************************************************
  * drivers/wireless/generic/si4463.h
  *
- *   Copyright (C) 2017 Sebastien Lorquet. All rights reserved.
+ *   Copyright (C) 2017-2018 Sebastien Lorquet. All rights reserved.
  *   Author: Sebastien Lorquet <sebastien@lorquet.fr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -181,14 +181,14 @@ end_packed_struct;
 #define PINCFG_DRIVE1                 3
 #define PINCFG_INPUT                  4
 #define PINCFG_32K_CLK                5
-#define PINCFG_GPIO_BOOT_CLK          6
+#define PINCFG_BOOT_CLK               6
 #define PINCFG_DIV_CLK                7
 #define PINCFG_CTS                    8
-#define PINCFG_GPIO_INV_CTS           9
-#define PINCFG_GPIO_CMD_OVERLAP      10
+#define PINCFG_INV_CTS                9
+#define PINCFG_CMD_OVERLAP           10
 #define PINCFG_SDO                   11
 #define PINCFG_POR                   12
-#define PINCFG_GPIO_CAL_WUT          13
+#define PINCFG_CAL_WUT               13
 #define PINCFG_WUT                   14
 #define PINCFG_EN_PA                 15
 #define PINCFG_TX_DATA_CLK           16
@@ -203,17 +203,17 @@ end_packed_struct;
 #define PINCFG_INVALID_PREAMBLE      25
 #define PINCFG_SYNC_WORD_DETECT      26
 #define PINCFG_CCA                   27
-#define PINCFG_GPIO_IN_SLEEP         28
+#define PINCFG_IN_SLEEP              28
 #define PINCFG_PKT_TRACE             29
 #define PINCFG_TX_RX_DATA_CLK        31
-#define PINCFG_GPIO_TX_STATE         32
-#define PINCFG_GPIO_RX_STATE         33
-#define PINCFG_GPIO_RX_FIFO_FULL     34
-#define PINCFG_GPIO_TX_FIFO_EMPTY    35
-#define PINCFG_GPIO_LOW_BATT         36
-#define PINCFG_GPIO_CCA_LATCH        37
-#define PINCFG_GPIO_HOPPED           38
-#define PINCFG_GPIO_HOP_TABLE_WRAP   39
+#define PINCFG_TX_STATE              32
+#define PINCFG_RX_STATE              33
+#define PINCFG_RX_FIFO_FULL          34
+#define PINCFG_TX_FIFO_EMPTY         35
+#define PINCFG_LOW_BATT              36
+#define PINCFG_CCA_LATCH             37
+#define PINCFG_HOPPED                38
+#define PINCFG_HOP_TABLE_WRAP        39
 #define PINCFG_NIRQ_NIRQ             39
 
 #define DRV_STRENGTH_HIGH            (0<<5)
@@ -453,7 +453,7 @@ end_packed_struct;
 
 
 #define STARTRX_CONDITION_WUT       (1 << 0)
-#define STARTRX_CONDITION_IMMEDIATE (1 << 0)
+#define STARTRX_CONDITION_IMMEDIATE (0 << 0)
 #define STARTRX_STATE_NOCHANGE      0
 #define STARTRX_STATE_SLEEP         1 
 #define STARTRX_STATE_SPI_ACTIVE    2

include/nuttx/wireless/generic/si4463.h

@@ -107,15 +107,17 @@ extern "C"
 struct spi_dev_s; /* Forward reference */
 FAR struct genradio_dev_s *si4463_init(FAR struct spi_dev_s *spi, int devnum,
                                        uint32_t xtal, int papin, int lnapin,
+                                       bool pininvert,
                                        FAR const struct si4463_lower_s *lower);
 
-/* these wrappers can be used to initialize radio modules with known xtals */
+/* these wrappers can be used to initialize radio modules with known params */
 
+/* RFM26 has a 30 MHz crystal and active-low antenna switch control */
 static inline FAR struct genradio_dev_s *
 RFM26_init(FAR struct spi_dev_s *spi, int devnum,  int papin, int lnapin,
                FAR const struct si4463_lower_s *lower)
 {
-  return si4463_init(spi, devnum, 30000000, papin, lnapin, lower);
+  return si4463_init(spi, devnum, 30000000, papin, lnapin, true, lower);
 }