Si5351 driver working

docs/WSPR.md

@@ -12,8 +12,16 @@ For use the protocol requires an amateur radio license. For this project, I have
 
 ## Base Design
 
+### Code
+
 The project is based on [https://github.com/alexf91/WSPR-Beacon/]alexf91/WSPR-Beacon however has been completely rewritten.
 
-The initial code was designed for an Arduino based solution with a USB interface. The re-write disregards the code apart from the WSPR encoding library.
+The initial code was designed for an Arduino based solution with a USB interface. The re-write here disregards the code apart from the WSPR encoding library.
+
+A special mention here is [https://github.com/threeme3/WsprryPi]threeme3/WsprryPi. I's not used in this project, but was vastly helpful for design purposes. 
+
+### Electronics
+
+The WSPR part of the project requires an oscillator to function at around 14MHz. 
 
-A special mention here is [https://github.com/threeme3/WsprryPi]threeme3/WsprryPi
+For this it was chosen to use the si5351, for the good community support, and the ease of the i2c interface.

sysdrv/cfg/package.mk

@@ -41,3 +41,7 @@ $(eval $(call MACRO_CHECK_ENABLE_PKG, RK_ENABLE_OTA))
 # Enable build strace
 CONFIG_SYSDRV_ENABLE_STRACE=n
 $(eval $(call MACRO_CHECK_ENABLE_PKG, RK_ENABLE_STRACE))
+
+# Enable build WSPR
+CONFIG_SYSDRV_ENABLE_WSPR=y
+$(eval $(call MACRO_CHECK_ENABLE_PKG, RK_ENABLE_WSPR))

sysdrv/source/kernel/arch/arm/boot/dts/rv1103g-luckfox-pico-mini-b.dts

@@ -20,6 +20,15 @@
         regulator-name = "gpio1_pd0";
         regulator-always-on;
     };
+
+	clocks {
+	/* 25MHz reference crystal */
+	ref25: ref25M {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <25000000>;
+	};
+	};
 };
 
 &sfc {
@@ -67,11 +76,69 @@
 //	status = "disabled";
 //};
 
+
 // /**********I2C**********/
 &i2c3 {
 	status = "okay";
 	pinctrl-0 = <&i2c3m1_xfer>;
 	clock-frequency = <100000>;
+/* Si5351a msop10 i2c clock generator */
+	si5351a: clock-generator@60 {
+		compatible = "silabs,si5351a-msop";
+		reg = <0x60>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		#clock-cells = <1>;
+
+		/* connect xtal input to 25MHz reference */
+		clocks = <&ref25>;
+		clock-names = "xtal";
+
+		/* connect xtal input as source of pll0 and pll1 */
+		silabs,pll-source = <0 0>, <1 0>;
+
+		/*
+		 * overwrite clkout0 configuration with:
+		 * - 8mA output drive strength
+		 * - pll0 as clock source of multisynth0
+		 * - multisynth0 as clock source of output divider
+		 * - multisynth0 can change pll0
+		 * - set initial clock frequency of 74.25MHz
+		 */
+		clkout0 {
+			reg = <0>;
+			silabs,drive-strength = <8>;
+			silabs,multisynth-source = <0>;
+			silabs,clock-source = <0>;
+			silabs,pll-master;
+			/* clock-frequency = <74250000>;*/
+		};
+
+		/*
+		 * overwrite clkout1 configuration with:
+		 * - 4mA output drive strength
+		 * - pll1 as clock source of multisynth1
+		 * - multisynth1 as clock source of output divider
+		 * - multisynth1 can change pll1
+		 */
+		clkout1 {
+			reg = <1>;
+			silabs,drive-strength = <4>;
+			silabs,multisynth-source = <1>;
+			silabs,clock-source = <0>;
+			pll-master;
+		};
+
+		/*
+		 * overwrite clkout2 configuration with:
+		 * - xtal as clock source of output divider
+		 */
+		clkout2 {
+			reg = <2>;
+			silabs,clock-source = <2>;
+		};
+	};
+
 };
 
 &pinctrl {

sysdrv/source/kernel/arch/arm/configs/luckfox_rv1106_linux_defconfig

@@ -320,3 +320,4 @@ CONFIG_DEBUG_FS=y
 # CONFIG_SCHED_DEBUG is not set
 # CONFIG_FTRACE is not set
 # CONFIG_RUNTIME_TESTING_MENU is not set
+CONFIG_COMMON_CLK_SI5351=y

sysdrv/tools/board/Makefile.tools.board.mk

@@ -9,7 +9,8 @@ tools_board-builds: \
 		board-build-rockchip_test \
 		board-build-e2fsprogs \
 		board-build-sysstat \
-		board-build-mtd_utils
+		board-build-mtd_utils \
+		board-build-wspr
 	@echo "build tools board done"
 
 tools_board-clean:
@@ -23,6 +24,7 @@ tools_board-clean:
 	$(MAKE) -C $(SYSDRV_DIR)/tools/board/stressapptest distclean
 	$(MAKE) -C $(SYSDRV_DIR)/tools/board/rk_ota distclean
 	$(MAKE) -C $(SYSDRV_DIR)/tools/board/sysstat distclean
+	$(MAKE) -C $(SYSDRV_DIR)/tools/board/wspr distclean
 
 board-build-toolkits:
 	$(MAKE) -C $(SYSDRV_DIR)/tools/board/toolkits
@@ -74,7 +76,13 @@ ifeq ($(BOOT_MEDIUM),spi_nor)
 	popd;
 endif
 endif
+
 board-build-sysstat:
 ifeq ($(ENABLE_SYSSTAT),y)
 	$(MAKE) -C $(SYSDRV_DIR)/tools/board/sysstat
 endif
+
+board-build-wspr:
+ifeq ($(ENABLE_WSPR),y)
+	$(MAKE) -C $(SYSDRV_DIR)/tools/board/wspr
+endif

sysdrv/tools/board/wspr/Makefile

@@ -0,0 +1,25 @@
+
+#ifeq ($(SYSDRV_PARAM), )
+#   SYSDRV_PARAM:=../../../Makefile.param
+#    include $(SYSDRV_PARAM)
+#endif
+
+export LC_ALL=C
+SHELL:=/bin/bash
+
+CURRENT_DIR := $(shell pwd)
+PKG_NAME := wspr
+PKG_BIN := out
+
+all:
+	@test -f $(PKG_BIN)/usr/sbin/$(PKG_NAME) || (\
+	mkdir -p $(CURRENT_DIR)/$(PKG_BIN)/usr/sbin; \
+	gcc main.c wspr.c -o $(CURRENT_DIR)/$(PKG_BIN)/usr/sbin/$(PKG_NAME); \
+	)
+	$(call MAROC_COPY_PKG_TO_SYSDRV_OUTPUT, $(SYSDRV_DIR_OUT_ROOTFS), $(PKG_BIN))
+
+clean: distclean
+
+distclean:
+	-rm -rf $(PKG_NAME) $(PKG_BIN)
+