Random progress on board + kscan ideas.

boards/arm/planck/CMakeLists.txt

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: Apache-2.0
+
+list(APPEND EXTRA_DTC_FLAGS "-qq")
+
+if(CONFIG_PINMUX)
+zephyr_library()
+zephyr_library_sources(pinmux.c)
+zephyr_library_include_directories(${ZEPHYR_BASE}/drivers)
+endif()

boards/arm/planck/Kconfig.board

@@ -0,0 +1,8 @@
+# STM32F3DISCOVERY board configuration
+
+# Copyright (c) 2017 I-SENSE group of ICCS
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_STM32F3_DISCO
+	bool "STM32F3DISCOVERY Development Board"
+	depends on SOC_STM32F303XC

boards/arm/planck/Kconfig.defconfig

@@ -0,0 +1,39 @@
+# Planck keyboard configuration
+
+# Copyright (c) 2017 I-SENSE group of ICCS
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_PLANCK_REV6
+
+config BOARD
+	default "planck_rev6"
+
+config UART_1
+	default y
+	depends on UART_CONSOLE
+
+if I2C
+
+config I2C_1
+	default y
+
+config I2C_2
+	default y
+
+endif # I2C
+
+if SPI
+
+config SPI_1
+	default y
+
+config SPI_2
+	default y
+
+endif # SPI
+
+config CAN_1
+	default y
+	depends on CAN
+
+endif # BOARD_PLANCK_REV6

boards/arm/planck/board.cmake

@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
+
+board_runner_args(jlink "--device=STM32F303VC" "--speed=4000")
+
+include(${ZEPHYR_BASE}/boards/common/openocd.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)

boards/arm/planck/pinmux.c

@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2017 I-SENSE group of ICCS
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <kernel.h>
+#include <device.h>
+#include <init.h>
+#include <drivers/pinmux.h>
+#include <sys/sys_io.h>
+
+#include <pinmux/stm32/pinmux_stm32.h>
+
+/* pin assignments for STM32F3DISCOVERY board */
+static const struct pin_config pinconf[] = {
+#ifdef CONFIG_UART_1
+	{STM32_PIN_PC4, STM32F3_PINMUX_FUNC_PC4_USART1_TX},
+	{STM32_PIN_PC5, STM32F3_PINMUX_FUNC_PC5_USART1_RX},
+#endif	/* CONFIG_UART_1 */
+#ifdef CONFIG_UART_2
+	{STM32_PIN_PA2, STM32F3_PINMUX_FUNC_PA2_USART2_TX},
+	{STM32_PIN_PA3, STM32F3_PINMUX_FUNC_PA3_USART2_RX},
+#endif	/* CONFIG_UART_2 */
+#ifdef CONFIG_I2C_1
+	{STM32_PIN_PB6, STM32F3_PINMUX_FUNC_PB6_I2C1_SCL},
+	{STM32_PIN_PB7, STM32F3_PINMUX_FUNC_PB7_I2C1_SDA},
+#endif /* CONFIG_I2C_1 */
+#ifdef CONFIG_I2C_2
+	{STM32_PIN_PA9, STM32F3_PINMUX_FUNC_PA9_I2C2_SCL},
+	{STM32_PIN_PA10, STM32F3_PINMUX_FUNC_PA10_I2C2_SDA},
+#endif /* CONFIG_I2C_2 */
+#ifdef CONFIG_SPI_1
+#ifdef CONFIG_SPI_STM32_USE_HW_SS
+	{STM32_PIN_PA4, STM32F3_PINMUX_FUNC_PA4_SPI1_NSS},
+#endif /* CONFIG_SPI_STM32_USE_HW_SS */
+	{STM32_PIN_PA5, STM32F3_PINMUX_FUNC_PA5_SPI1_SCK},
+	{STM32_PIN_PA6, STM32F3_PINMUX_FUNC_PA6_SPI1_MISO},
+	{STM32_PIN_PA7, STM32F3_PINMUX_FUNC_PA7_SPI1_MOSI},
+#endif /* CONFIG_SPI_1 */
+#ifdef CONFIG_SPI_2
+#ifdef CONFIG_SPI_STM32_USE_HW_SS
+	{STM32_PIN_PB12, STM32F3_PINMUX_FUNC_PB12_SPI2_NSS},
+#endif /* CONFIG_SPI_STM32_USE_HW_SS */
+	{STM32_PIN_PB13, STM32F3_PINMUX_FUNC_PB13_SPI2_SCK},
+	{STM32_PIN_PB14, STM32F3_PINMUX_FUNC_PB14_SPI2_MISO},
+	{STM32_PIN_PB15, STM32F3_PINMUX_FUNC_PB15_SPI2_MOSI},
+#endif /* CONFIG_SPI_2 */
+#ifdef CONFIG_USB_DC_STM32
+	{STM32_PIN_PA11, STM32F3_PINMUX_FUNC_PA11_USB_DM},
+	{STM32_PIN_PA12, STM32F3_PINMUX_FUNC_PA12_USB_DP},
+#endif	/* CONFIG_USB_DC_STM32 */
+#ifdef CONFIG_CAN_1
+	{STM32_PIN_PD0, STM32F3_PINMUX_FUNC_PD0_CAN1_RX},
+	{STM32_PIN_PD1, STM32F3_PINMUX_FUNC_PD1_CAN1_TX},
+#endif /* CONFIG_CAN_1 */
+};
+
+static int pinmux_stm32_init(struct device *port)
+{
+	ARG_UNUSED(port);
+
+	stm32_setup_pins(pinconf, ARRAY_SIZE(pinconf));
+
+	return 0;
+}
+
+SYS_INIT(pinmux_stm32_init, PRE_KERNEL_1,
+		CONFIG_PINMUX_STM32_DEVICE_INITIALIZATION_PRIORITY);

boards/arm/planck/planck_rev6.dts

@@ -0,0 +1,165 @@
+/*
+ * Copyright (c) 2017 I-SENSE group of ICCS
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <st/f3/stm32f303.dtsi>
+
+/ {
+	model = "Plack PCD, rev6";
+	compatible = "planck,rev6", "st,stm32f303";
+
+	chosen {
+		zephyr,console = &usart1;
+		zephyr,shell-uart = &usart1;
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+		zmk,matrix = &matrix0;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		red_led_3: led_3 {
+			gpios = <&gpioe 9 GPIO_ACTIVE_HIGH>;
+			label = "User LD3";
+		};
+		blue_led_4: led_4 {
+			gpios = <&gpioe 8 GPIO_ACTIVE_HIGH>;
+			label = "User LD4";
+		};
+		orange_led_5: led_5 {
+			gpios = <&gpioe 10 GPIO_ACTIVE_HIGH>;
+			label = "User LD5";
+		};
+		green_led_6: led_6 {
+			gpios = <&gpioe 15 GPIO_ACTIVE_HIGH>;
+			label = "User LD6";
+		};
+		green_led_7: led_7 {
+			gpios = <&gpioe 11 GPIO_ACTIVE_HIGH>;
+			label = "User LD7";
+		};
+		orange_led_8: led_8 {
+			gpios = <&gpioe 14 GPIO_ACTIVE_HIGH>;
+			label = "User LD8";
+		};
+		blue_led_9: led_9 {
+			gpios = <&gpioe 12 GPIO_ACTIVE_HIGH>;
+			label = "User LD9";
+		};
+		red_led_10: led_10 {
+			gpios = <&gpioe 13 GPIO_ACTIVE_HIGH>;
+			label = "User LD10";
+		};
+	};
+
+	matrix0: kscan_matrix {
+		rows {
+			gpio-map = <0 0 &gpioa 10 0>,
+			           <1 0 &gpioa 9 0>,
+			           <2 0 &gpioa 8 0>,
+			           <3 0 &gpiob 15 0>,
+			           <4 0 &gpioc 13 0>,
+			           <5 0 &gpioc 14 0>,
+			           <6 0 &gpioc 15 0>,
+			           <7 0 &gpioa 2 0>;
+		};
+		columns {
+			gpio-map = <0 0 &gpiob 11 0>,
+			           <1 0 &gpiob 10 0>,
+			           <2 0 &gpiob 2 0>,
+			           <3 0 &gpiob 1 0>,
+			           <4 0 &gpioa 7 0>,
+			           <5 0 &gpiob 0 0>;
+		};
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		user_button: button {
+			label = "User";
+			gpios = <&gpioa 0 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	aliases {
+		led0 = &green_led_6;
+		led1 = &green_led_7;
+		sw0 = &user_button;
+		can-primary = &can1;
+	};
+};
+
+&usart1 {
+	current-speed = <115200>;
+	status = "okay";
+};
+
+&usart2 {
+	current-speed = <115200>;
+	status = "okay";
+};
+
+&i2c1 {
+	status = "okay";
+	clock-frequency = <I2C_BITRATE_FAST>;
+
+	lsm303dlhc-magn@1e {
+		compatible = "st,lsm303dlhc-magn";
+		reg = <0x1e>;
+		label = "LSM303DLHC-MAGN";
+	};
+
+	lsm303dlhc-accel@19 {
+		compatible = "st,lis2dh", "st,lsm303dlhc-accel";
+		reg = <0x19>;
+		irq-gpios = <&gpioe 4 GPIO_ACTIVE_HIGH>,
+			  <&gpioe 5 GPIO_ACTIVE_HIGH>;
+		label = "LSM303DLHC-ACCEL";
+	};
+};
+
+&i2c2 {
+	status = "okay";
+	clock-frequency = <I2C_BITRATE_FAST>;
+};
+
+&spi1 {
+	status = "okay";
+};
+
+&spi2 {
+	status = "okay";
+};
+
+&usb {
+	status = "okay";
+};
+
+&rtc {
+	status = "okay";
+};
+
+&can1 {
+	status = "okay";
+};
+
+&flash0 {
+	/*
+	 * For more information, see:
+	 * http://docs.zephyrproject.org/latest/guides/dts/index.html#flash-partitions
+	 */
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		/* Set 6Kb of storage at the end of the 256Kb of flash */
+		storage_partition: partition@3e800 {
+			label = "storage";
+			reg = <0x0003e800 0x00001800>;
+		};
+	};
+};

boards/arm/planck/planck_rev6.yaml

@@ -0,0 +1,19 @@
+identifier: planck_rev6
+name: PLANKREV6
+type: keyboard
+arch: arm
+toolchain:
+  - zephyr
+  - gnuarmemb
+  - xtools
+ram: 40
+supported:
+  - gpio
+  - i2c
+  - counter
+  - spi
+  - usb_device
+  - lsm303dlhc
+  - nvs
+  - can
+  - kscan

boards/arm/planck/planck_rev6_defconfig

@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_SOC_SERIES_STM32F3X=y
+CONFIG_SOC_STM32F303XC=y
+# 72MHz system clock
+CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=72000000
+
+# Floating Point Options
+CONFIG_FLOAT=y
+
+# enable uart driver
+CONFIG_SERIAL=y
+
+# enable console
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+
+#enable I2C
+CONFIG_I2C=y
+
+#enable SPI
+CONFIG_SPI=y
+
+# enable pinmux
+CONFIG_PINMUX=y
+
+# enable GPIO
+CONFIG_GPIO=y
+
+# clock configuration
+CONFIG_CLOCK_CONTROL=y
+
+# kscan matrix
+CONFIG_KSCAN=y
+CONFIG_KSCAN_GPIO=y
+
+# Clock configuration for Cube Clock control driver
+CONFIG_CLOCK_STM32_HSE_CLOCK=8000000
+CONFIG_CLOCK_STM32_SYSCLK_SRC_PLL=y
+# use HSE as PLL input
+CONFIG_CLOCK_STM32_PLL_SRC_HSE=y
+# however, the board does not have an external oscillator, so just use
+# the 8MHz clock signal coming from integrated STLink
+CONFIG_CLOCK_STM32_HSE_BYPASS=y
+# produce 72MHz clock at PLL output
+CONFIG_CLOCK_STM32_PLL_PREDIV=1
+CONFIG_CLOCK_STM32_PLL_MULTIPLIER=9
+CONFIG_CLOCK_STM32_AHB_PRESCALER=1
+CONFIG_CLOCK_STM32_APB1_PRESCALER=2
+CONFIG_CLOCK_STM32_APB2_PRESCALER=1