esp32: Add support for espnow based pktradio

Espnow is a connectionless WiFi communication protocol that can be used to exchange information between esp nodes. A espnow pktradio driver is proposed that allows building a 6lowpan network of nodes. The driver has been evaluated using udpclient & server running on different devices. Solves apache#15347 Signed-off-by: Laczen JMS <[email protected]>
Laczen · Feb 4, 2025 · b608d39 · b608d39
1 parent c1f9c73
commit b608d39
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diff --git a/arch/xtensa/src/esp32/Kconfig b/arch/xtensa/src/esp32/Kconfig
@@ -745,6 +745,100 @@ config ESP32_WIRELESS
 	---help---
 		Enable Wireless support
 
+config ESP32_ESPNOW_PKTRADIO
+	bool "ESPNOW packet radio support"
+	select ESP32_WIRELESS
+	depends on WIRELESS_PKTRADIO
+	default n
+	---help---
+		Enable using espnow for packet radio
+
+if ESP32_ESPNOW_PKTRADIO
+
+config ESP32_ESPNOW_PKTRADIO_PANID
+	hex "ESPNOW node panid"
+	range 0x0 0xffff
+	default 0x0
+	---help---
+		PANID for espnow packet radio
+
+if PKTRADIO_ADDRLEN = 1
+
+config ESP32_ESPNOW_PKTRADIO_NODE_ADDR_0
+	hex "ESPNOW node address"
+	range 0x0 0xff
+	default 0x0
+	---help---
+		Node address for espnow packet radio
+
+endif #PKTRADIO_ADDRLEN = 1
+
+if PKTRADIO_ADDRLEN > 1
+
+config ESP32_ESPNOW_PKTRADIO_NODE_ADDR_0
+	hex "ESPNOW node address[0]"
+	range 0x0 0xff
+	default 0x0
+	---help---
+		Node address for espnow packet radio
+
+config ESP32_ESPNOW_PKTRADIO_NODE_ADDR_1
+	hex "ESPNOW node address[1]"
+	range 0x0 0xff
+	default 0x0
+	---help---
+		Node address for espnow packet radio
+
+if PKTRADIO_ADDRLEN > 2
+
+config ESP32_ESPNOW_PKTRADIO_NODE_ADDR_2
+	hex "ESPNOW node address[2]"
+	range 0x0 0xff
+	default 0x0
+	---help---
+		Node address for espnow packet radio
+
+config ESP32_ESPNOW_PKTRADIO_NODE_ADDR_3
+	hex "ESPNOW node address[3]"
+	range 0x0 0xff
+	default 0x0
+	---help---
+		Node address for espnow packet radio
+
+config ESP32_ESPNOW_PKTRADIO_NODE_ADDR_4
+	hex "ESPNOW node address[4]"
+	range 0x0 0xff
+	default 0x0
+	---help---
+		Node address for espnow packet radio
+
+config ESP32_ESPNOW_PKTRADIO_NODE_ADDR_5
+	hex "ESPNOW node address[5]"
+	range 0x0 0xff
+	default 0x0
+	---help---
+		Node address for espnow packet radio
+
+config ESP32_ESPNOW_PKTRADIO_NODE_ADDR_6
+	hex "ESPNOW node address[6]"
+	range 0x0 0xff
+	default 0x0
+	---help---
+		Node address for espnow packet radio
+
+config ESP32_ESPNOW_PKTRADIO_NODE_ADDR_7
+	hex "ESPNOW node address[7]"
+	range 0x0 0xff
+	default 0x0
+	---help---
+		Node address for espnow packet radio
+
+endif #PKTRADIO_ADDRLEN > 2
+
+endif #PKTRADIO_ADDRLEN > 1
+
+endif #ESP32_ESPNOW_PKTRADIO
+
 config ESP32_WIFI
 	bool "Wi-Fi"
 	default n

diff --git a/arch/xtensa/src/esp32/Wireless.mk b/arch/xtensa/src/esp32/Wireless.mk
@@ -43,6 +43,11 @@ ifeq ($(CONFIG_ESP32_WIFI),y)
 CHIP_CSRCS += esp32_wlan.c esp32_wifi_utils.c esp32_wifi_adapter.c
 EXTRA_LIBS += -lcore -lnet80211 -lpp
 
+ifeq ($(CONFIG_ESP32_ESPNOW_PKTRADIO),y)
+CHIP_CSRCS += esp32_espnow_pktradio.c
+EXTRA_LIBS += -lespnow
+endif
+
 ifeq ($(CONFIG_WPA_WAPI_PSK),y)
 EXTRA_LIBS += -lwapi
 endif