fix bug aiit-arm32-board support sx127x on nuttx

Ubiquitous/Nuttx/aiit_board/aiit-arm32-board/src/stm32_sx127x.c

@@ -143,7 +143,7 @@ static int sx127x_freq_select(uint32_t freq)
 
   /* Only HF supported (BAND3 - 860-930 MHz) */
 
-  if (freq < SX127X_HFBAND_THR)
+  if (freq > SX127X_HFBAND_THR)
     {
       ret = -EINVAL;
       wlerr("LF band not supported\n");

Ubiquitous/Nuttx/app_match_nuttx/nuttx/drivers/wireless/lpwan/Kconfig

@@ -0,0 +1,88 @@
+#
+# For a description of the syntax of this configuration file,
+# see the file kconfig-language.txt in the NuttX tools repository.
+#
+
+if DRIVERS_LPWAN
+
+config LPWAN_SX127X
+	bool "SX127X Low Power Long Range transceiver support"
+	default n
+	select SPI
+	select SCHED_HPWORK
+	---help---
+		This options adds driver support for the Samtech SX127X chip.
+
+if LPWAN_SX127X
+
+config LPWAN_SX127X_RFFREQ_DEFAULT
+	int "SX127X default RF frequency"
+	default 433000000
+
+config LPWAN_SX127X_SPIFREQ
+	int "SX127X SPI frequency"
+	default 1000000
+	---help---
+		SX127X SPI frequency up to 10MHz
+
+config LPWAN_SX127X_TXPOWER_DEFAULT
+	int "SX127X default TX power"
+	default 20
+
+config LPWAN_SX127X_PREAMBLE_DEFAULT
+	int "SX127X default preamble length"
+	default 8
+
+config LPWAN_SX127X_MODULATION_DEFAULT
+	int "SX127X default modulation scheme"
+	default 3 if LPWAN_SX127X_LORA
+	default 1 if LPWAN_SX127X_FSKOOK
+	range 1 3
+	---help---
+		1 - FSK, 2 - OOK, 3 - LORA
+
+config LPWAN_SX127X_CRCON
+	int "SX127X CRC ON"
+	range 0 1
+	default 1
+
+config LPWAN_SX127X_RXSUPPORT
+	bool "SX127X RX support"
+	default y
+
+if LPWAN_SX127X_RXSUPPORT
+
+config LPWAN_SX127X_RXFIFO_LEN
+	int "SX127X RX FIFO length"
+	default 5
+
+config LPWAN_SX127X_RXFIFO_DATA_LEN
+	int "SX127X RX FIFO data length"
+	default 256
+
+endif #LPWAN_SX127X_RXSUPPORT
+
+config LPWAN_SX127X_TXSUPPORT
+	bool "SX127X TX support"
+	default y
+
+config LPWAN_SX127X_LORA
+	bool "SX127X LORA support"
+	default y
+
+if LPWAN_SX127X_LORA
+
+config LPWAN_SX127X_LORA_IMPHEADER
+	int "SX127X LORA implicit header ON"
+	range 0 1
+	default 0
+
+endif # LPWAN_SX127X_LORA
+
+config LPWAN_SX127X_FSKOOK
+	bool "SX127X FSK/OOK support"
+	default n
+
+endif # WL_SX127X
+
+endif # DRIVERS_LPWAN

Ubiquitous/Nuttx/app_match_nuttx/nuttx/drivers/wireless/lpwan/sx127x/sx127x.c

@@ -769,6 +769,36 @@ static int sx127x_open(FAR struct file *filep)
       goto errout;
     }
 
+  /* Set modulation */
+
+  wlinfo("Set modulation mode to %d\n", CONFIG_LPWAN_SX127X_MODULATION_DEFAULT);
+  ret = sx127x_modulation_set(dev, CONFIG_LPWAN_SX127X_MODULATION_DEFAULT); 
+  if (ret < 0)
+  {
+    wlerr("modulation_set failed\n");
+    goto errout;
+  } 
+
+  /* Set RF frequency */
+
+  wlinfo("Set frequency to %" PRId32 "\n", CONFIG_LPWAN_SX127X_RFFREQ_DEFAULT);
+  ret = sx127x_frequency_set(dev, CONFIG_LPWAN_SX127X_RFFREQ_DEFAULT);
+  if (ret < 0)
+  {
+    wlerr("failed to change frequency %d!\n", ret);
+    goto errout;
+  }
+
+  /* Set TX power */
+
+  wlinfo("Set power to %d\n", CONFIG_LPWAN_SX127X_TXPOWER_DEFAULT);
+  ret = sx127x_power_set(dev, CONFIG_LPWAN_SX127X_TXPOWER_DEFAULT);
+  if (ret < 0)
+  {
+    wlerr("failed to change power %d!\n", ret);
+    goto errout;
+  }
+
   dev->nopens++;
 
 errout:
@@ -844,6 +874,13 @@ static ssize_t sx127x_read(FAR struct file *filep, FAR char *buffer,
   DEBUGASSERT(inode && inode->i_private);
   dev = (FAR struct sx127x_dev_s *)inode->i_private;
 
+  /* Set mode to RX */
+
+  wlinfo("Set opmode to %" PRId32 "\n", SX127X_OPMODE_RX);
+  sx127x_opmode_set(dev, SX127X_OPMODE_RX);
+
+  sx127x_writeregbyte(dev, SX127X_LRM_IRQ, 8);
+
   ret = nxsem_wait(&dev->dev_sem);
   if (ret < 0)
     {
@@ -912,9 +949,10 @@ static ssize_t sx127x_write(FAR struct file *filep, FAR const char *buffer,
 
   sx127x_opmode_set(dev, SX127X_OPMODE_STANDBY);
 
-  /* Initialize TX mode */
   sx127x_writeregbyte(dev, SX127X_LRM_IRQ, 8);
 
+  /* Initialize TX mode */
+
   ret = sx127x_opmode_init(dev, SX127X_OPMODE_TX);
   if (ret < 0)
     {
@@ -940,6 +978,8 @@ static ssize_t sx127x_write(FAR struct file *filep, FAR const char *buffer,
 
   nxsem_wait(&dev->tx_sem);
 
+  sx127x_writeregbyte(dev, SX127X_LRM_IRQ, 8);
+
 errout:
   /* Change mode to IDLE after transfer
    * NOTE: if sequencer for FSK/OOK is ON - this should be done automatically