From 33bb813a02eba83f07674427ca33d430856f96d0 Mon Sep 17 00:00:00 2001
From: Alex Mikhalev <alexmikhalevalex@gmail.com>
Date: Mon, 31 Dec 2018 14:02:11 -0700
Subject: [PATCH] Use Kconfig for SX127X

---
 components/sx127x_driver/Kconfig.projbuild | 41 ++++++++++++++++++++++
 components/sx127x_driver/sx127x_internal.h | 17 ++++-----
 2 files changed, 50 insertions(+), 8 deletions(-)
 create mode 100644 components/sx127x_driver/Kconfig.projbuild

diff --git a/components/sx127x_driver/Kconfig.projbuild b/components/sx127x_driver/Kconfig.projbuild
new file mode 100644
index 0000000..255827b
--- /dev/null
+++ b/components/sx127x_driver/Kconfig.projbuild
@@ -0,0 +1,41 @@
+menu "SX127X Driver Configuration"
+
+config SX127X_TASK_STACK_SIZE
+	int "Task stack size"
+	range 1024 32768
+	default 2048
+
+config SX127X_TASK_PRIORITY
+	int "Task priority"
+	range 1 25
+	default 3
+
+config SX127X_RX_QUEUE_LEN
+	int "Receive queue length"
+	range 1 255
+	default 8
+
+config SX127X_TX_QUEUE_LEN
+	int "Transmit queue length"
+	range 1 255
+	default 8
+
+config SX127X_SPI_CLOCK_HZ
+	int "SPI clock rate in hz"
+	range 8000000 80000000
+	default 8000000
+
+config SX127X_SPI_QUEUE_SIZE
+	int "SPI transmit queue length"
+	range 2 20
+	default 8
+
+config SX127X_SPI_DMA_CHAN
+	int "SPI DMA chanel"
+	range 0 2
+	default 1
+	help
+		There are two DMA channels that can be used by the ESP32 SPI driver. One
+		which is not in use must be picked (1 or 2). Set to 0 to disable SPI DMA.
+
+endmenu
diff --git a/components/sx127x_driver/sx127x_internal.h b/components/sx127x_driver/sx127x_internal.h
index 43c5d64..93ffcc9 100644
--- a/components/sx127x_driver/sx127x_internal.h
+++ b/components/sx127x_driver/sx127x_internal.h
@@ -5,14 +5,15 @@
 #include <freertos/task.h>
 #include <stdatomic.h>
 
-// TODO: these should be in Kconfig
-#define SX127X_TASK_STACK_SIZE (2 * 1024)
-#define SX127X_TASK_PRIORITY 3
-#define SX127X_RX_QUEUE_LEN 8
-#define SX127X_TX_QUEUE_LEN 8
-#define SX127X_SPI_QUEUE_SIZE 8
-#define SX127X_SPI_DMA_CHAN 1
-#define SX127X_SPI_CLOCK_HZ (8 * 1000 * 1000)
+#include "sdkconfig.h"
+
+#define SX127X_TASK_STACK_SIZE CONFIG_SX127X_TASK_STACK_SIZE
+#define SX127X_TASK_PRIORITY CONFIG_SX127X_TASK_PRIORITY
+#define SX127X_RX_QUEUE_LEN CONFIG_SX127X_RX_QUEUE_LEN
+#define SX127X_TX_QUEUE_LEN CONFIG_SX127X_TX_QUEUE_LEN
+#define SX127X_SPI_QUEUE_SIZE CONFIG_SX127X_SPI_QUEUE_SIZE
+#define SX127X_SPI_DMA_CHAN CONFIG_SX127X_SPI_DMA_CHAN
+#define SX127X_SPI_CLOCK_HZ CONFIG_SX127X_SPI_CLOCK_HZ
 
 #define SX127X_MAX_TRANSFER (256)
 #define SX127X_RESET_DELAY (pdMS_TO_TICKS(15))