Random progress on board + kscan ideas.

CMakeLists.txt

@@ -1,40 +1,17 @@
 # Find Zephyr. This also loads Zephyr's build system.
 cmake_minimum_required(VERSION 3.13.1)
-find_package(Zephyr)
+
+list(APPEND BOARD_ROOT .)
 
 get_filename_component(ZEPHYR_RUST ${CMAKE_CURRENT_SOURCE_DIR}/zephyr-rust ABSOLUTE)
 list(APPEND ZEPHYR_EXTRA_MODULES ${ZEPHYR_RUST})
 
+include($ENV{ZEPHYR_BASE}/cmake/app/boilerplate.cmake NO_POLICY_SCOPE)
+find_package(Zephyr)
+
 project(zmk)
 
 # Add your source file to the "app" target. This must come after
 # find_package(Zephyr) which defines the target.
 target_sources(app PRIVATE src/main.c)
 
-include(ExternalProject)
-
-# Add rust_example as a CMake target
-ExternalProject_Add(
-    zmk_crate
-    DOWNLOAD_COMMAND ""
-    CONFIGURE_COMMAND ""
-    BUILD_COMMAND cargo build --target thumbv7m-none-eabi COMMAND cargo build --release --target thumbv7m-none-eabi
-    BINARY_DIR "${CMAKE_SOURCE_DIR}/zmk"
-    INSTALL_COMMAND ""
-    BUILD_BYPRODUCTS "${CMAKE_SOURCE_DIR}/zmk/target/thumbv7m-none-eabi/release/libzmk.a"
-    LOG_BUILD ON)
-
-# Create a wrapper CMake library that our app can link with
-add_library(zmk_lib STATIC IMPORTED GLOBAL)
-add_dependencies(
-  zmk_lib
-  zmk_crate
-  )
-
-set_target_properties(zmk_lib PROPERTIES IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/zmk/target/thumbv7m-none-eabi/release/libzmk.a)
-# target_link_libraries(zmk_lib
-# debug "${CMAKE_SOURCE_DIR}/target/debug/zmk.a"
-# optimized "${CMAKE_SOURCE_DIR}/target/release/zmk.a")
-
-target_link_libraries(app PUBLIC zmk_lib)
-

Cargo.lock

@@ -0,0 +1,126 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "aligned"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eb1ce8b3382016136ab1d31a1b5ce807144f8b7eb2d5f16b2108f0f07edceb94"
+dependencies = [
+ "as-slice",
+]
+
+[[package]]
+name = "as-slice"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "37dfb65bc03b2bc85ee827004f14a6817e04160e3b1a28931986a666a9290e70"
+dependencies = [
+ "generic-array 0.12.3",
+ "generic-array 0.13.2",
+ "stable_deref_trait",
+]
+
+[[package]]
+name = "bare-metal"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5deb64efa5bd81e31fcd1938615a6d98c82eafcbcd787162b6f63b91d6bac5b3"
+dependencies = [
+ "rustc_version",
+]
+
+[[package]]
+name = "cortex-m"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2954942fbbdd49996704e6f048ce57567c3e1a4e2dc59b41ae9fde06a01fc763"
+dependencies = [
+ "aligned",
+ "bare-metal",
+ "volatile-register",
+]
+
+[[package]]
+name = "generic-array"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c68f0274ae0e023facc3c97b2e00f076be70e254bc851d972503b328db79b2ec"
+dependencies = [
+ "typenum",
+]
+
+[[package]]
+name = "generic-array"
+version = "0.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0ed1e761351b56f54eb9dcd0cfaca9fd0daecf93918e1cfc01c8a3d26ee7adcd"
+dependencies = [
+ "typenum",
+]
+
+[[package]]
+name = "panic-itm"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "98830d17a95587207e41edaa3009b143d326ce134b0e3538ac98246a67d66cc3"
+dependencies = [
+ "cortex-m",
+]
+
+[[package]]
+name = "rustc_version"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
+dependencies = [
+ "semver",
+]
+
+[[package]]
+name = "semver"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
+dependencies = [
+ "semver-parser",
+]
+
+[[package]]
+name = "semver-parser"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
+
+[[package]]
+name = "stable_deref_trait"
+version = "1.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dba1a27d3efae4351c8051072d619e3ade2820635c3958d826bfea39d59b54c8"
+
+[[package]]
+name = "typenum"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "373c8a200f9e67a0c95e62a4f52fbf80c23b4381c05a17845531982fa99e6b33"
+
+[[package]]
+name = "vcell"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "876e32dcadfe563a4289e994f7cb391197f362b6315dc45e8ba4aa6f564a4b3c"
+
+[[package]]
+name = "volatile-register"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0d67cb4616d99b940db1d6bd28844ff97108b498a6ca850e5b6191a532063286"
+dependencies = [
+ "vcell",
+]
+
+[[package]]
+name = "zmk"
+version = "0.1.0"
+dependencies = [
+ "panic-itm",
+]

Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "app"
+version = "0.1.0"
+authors = ["Pete Johanson <peter@peterjohanson.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+

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

prj.conf

@@ -0,0 +1,4 @@
+CONFIG_RUST=y
+CONFIG_RUST_ALLOC_POOL=y
+CONFIG_KSCAN=y
+CONFIG_KSCAN_GPIO=y

src/lib.rs

@@ -0,0 +1,11 @@
+#[no_mangle]
+pub extern "C" fn zmk_run() {
+}
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn it_works() {
+        assert_eq!(2 + 2, 4);
+    }
+}

src/main.c

@@ -8,6 +8,7 @@
 #include <device.h>
 #include <devicetree.h>
 #include <drivers/gpio.h>
+#include <drivers/kscan.h>
 
 #include "zmk_lib.h"
 
@@ -15,6 +16,7 @@
 #define SLEEP_TIME_MS   1000
 
 /* The devicetree node identifier for the "led0" alias. */
+/*
 #define LED0_NODE DT_ALIAS(led0)
 
 #if DT_HAS_NODE(LED0_NODE)
@@ -24,7 +26,9 @@
 #define FLAGS	DT_GPIO_FLAGS(LED0_NODE, gpios)
 #endif
 #else
+*/
 /* A build error here means your board isn't set up to blink an LED. */
+/*
 #error "Unsupported board: led0 devicetree alias is not defined"
 #define LED0	""
 #define PIN	0
@@ -34,9 +38,12 @@
 #define FLAGS	0
 #endif
 
+*/
+
 
 void main(void)
 {
+	/*
 	struct device *dev;
 	bool led_is_on = true;
 	int ret;
@@ -50,6 +57,7 @@ void main(void)
 	if (ret < 0) {
 		return;
 	}
+	*/
 
 	zmk_run();
 	// while (1) {