Add ChibiOS support for QMK (#465)

* Modularity and gcc warnings fixes.

* Add ChibiOS support (USB stack + support files).

* Make usb_main more USB_DRIVER #define independent.

* Move chibios to tool.

* Implement jump-to-bootloader.

* Small updates.

* Fix bootloader-jump compiling.

* Move AVR specific sleep_led.c into avr.

* Add basic sleep_led for chibios.

* Update chibios README.

* NKRO fixes.

* Rename some Makefile defines.

* Move STM32 bootloader address config to separate .h file.

* Add ARM Teensies bootloader code.

* Fix chibios/usb_main GET_REPORT handing.

* Add missing #include to keymap.c.

* Make bootmagic.c code portable (_delay_ms -> wait_ms).

* Move declaration of keymap_config.

Should really not declare variables in .h files - since it's included
in different .c files, a proper linker then complains that the same
variable is declared more than once (once for each .c file that the
offending .h is included in).

* Add eeprom support for chibios/kinetis.

* Rename chibios example keyboard.

* Move chibios/cortex selection to local Makefiles.

* Chibios: use WFI in idle. WIP suspend stuff.

* ChibiOS/kinetis: sending remote wakeup.

* ChibiOS/STM32: send remote wakeup.

* Fix report size of boot protocol.

* Fix drop key stroke

Keyboard report should be checked if its transfer finishs successfully.
Otherwise key stroke can be missing when other key event occurs
before the last report transfer is done.

Boot protocol 10ms interval probably causes this problem in case
it receives key events in a row within the period. NKRO protocol
suffers less or nothing due to its interval 1ms.

* Chibios/usb_main: rename a variable for clarity.

* Add correct chibios/bootloader_jump for infinity KB.

* ChibiOS: make reset request more CMSISy.

* Chibios: Add breathing sleep LED on Kinetis MCUs.

* ChibiOS: Update infinity bootloader code to match updated ChibiOS.

* ChibiOS: prettify/document sleep_led code.

* Chibios: Remove the wait in the main loop.

* Add maple mini code.

* Do timeout when writing to CONSOLE EP queue.

Fixes TMK bug #266.

* Chibios: add 'core/protocol' to the makefiles' search path.

* Chibios: Update to new USB API.

* Chibios: add more guards for transmitting (fix a deadlock bug).

* Add update for chibios in README

* Chibios: Fix a HardFault bug (wait after start).

* Chibios: cleanup usb_main code.

* Chibios: Revert common.mk change (fix AVR linking problem).

* core: Fix chibios user compile options

Compile options can be defined in project Makefile such as UDEFS, UADEFS, UINCDIR, ULIBDIR and ULIBS.

* Sysv format for ChibiOS arm-none-eabi-size

Some new patches to ChibiOS puts heap as it's own section. So the
berkeley format is now useless, as the heap will be included in the
BSS report. The sysv format displays the bss size correctly.

* Fix hard-coded path of CHIBIOS

* Add support for new version of ChibiOS and Contrib

The Kinetis support has moved to a separate Contrib repository in
the newest version of Chibios. There has also been some structure
changes. So this adds support for those, while maintaining back-
wards compability.

* Update ChibiOS instructions

* Chibios: implement sleep LED for STM32.

* Chibios: Update the main chibios README.

* Chibios: fix STM32_BOOTLOADER_ADDRESS name.

* Chibios: make the default bootloader_jump redefinable (weak).

* Chibios: disable LTO (link-time optimisation).

With LTO enabled, sometimes things fail for mysterious reasons
(e.g. bootloader jump on WF with LEDs enabled), just because the
linker optimisation is too aggressive.

* Chibios: add default location for chibios-contrib.

* ChibiOS: update mk to match chibios/master.

* ChibiOS: update instructions.md.

* Add chibi_onekey example.

* Add comments to chibi_onekey Makefile.

* Rename some Makefile defines.

* Move STM32 bootloader address config to separate .h file.

* Rename chibios example keyboard.

* Move chibios/cortex selection to local Makefiles.

* Add Teensy LC onekey example.

* Chibios: use WFI in idle. WIP suspend stuff.

* Update chibi/teensy instructions.

* Update chibios/Teensy instructions.

* Add infinity_chibios

* Add keymap_hasu.c

* Infinity_chibios: select correct bootloader_jump.

* Infinity_chibios: improve comments.

* Add generic STM32F103C8T6 example.

* Add maple mini code.

* STM32F103x fixes.

* Add maple mini pinout pic.

* Chibios: updates for 3.0.4 git.

* Chibios: rename example stm32_onekey -> stm32_f072_onekey.

* Chibios: add makefiles for Teensy 3.x examples.

* Chibios: update Teensy 3.x instructions.

* Chibios: Tsy LC is cortex-m0plus.

* Chibios: add more guards for transmitting (fix a deadlock bug).

* Change README for chibios

* Chibios: update examples to current chibios git.

Match the changes in mainline chibios:
 - update chconf.h
 - update supplied ld scripts structure
 - update Teensy instructions (switch to official
    chibios and introduce contrib)

* Add ChibiOS and ChibiOS-Contrib submodules

Also fix the makefile path for them.

* Moves chibios keyboards to keyboards folder

* First version of ChibiOS compilation

Only the stm32_f072_onkey keyboard is ported at the moment. It
compiles, but still doesn't link.

* More chibios fixes

It now compiles without warnings and links

* Move the teensy_lc_onekey to the keyboards folder

* Clean up the make file rule structure

* Remove keymap_fn_to_action

* Update more ChibiOS keyboards to QMK

Most of them does not compile at the moment though.

* Use older version of Chibios libraries

The newest ones have problems with compilation

* Remove USB_UNCONFIGURED event

It isn't present in the older version of ChibiOS

* Fix the infinity_chibios compilation

* Fix potentially uninitialized variable

* Add missing include

* Fix the ChibiOS makefile

* Fix some Chibios keyboard compilation

* Revert the rules.mk file back to master version

* Combine the chibios and AVR makefiles

With just the required overrides in the respective platform
specific one.

* Slight makefile restrucuring

Platform specific compiler options

* Move avr specific targets out of the main rules

* Fix ChibiOS objcopy

The ChibiOS objcopy needs different parameters, so the parameters
are moved to the corresponding platform rule file

* Fix the objcopy for real this time

The comands were moved around, so chibios used avr and the ohter
way around.

Also change the objsize output format

* Fix the thumb flags

* Fix the infinity hasu keymap

* Per platform cpp flags

* Add gcc-arm-none-eabi package to travis

* Add arm-none-eabi-newlib to travis

* Fix the name of the libnewlib-arm-none-eabi lib

* Fix the ChibiOS paths

So that they are properly relative, and builds don't generate
extra folders

* Fix the board path of stm32_f103_onekey

* Only consider folders with Makefiles as subproject

18 files changed, 1795 insertions, 0 deletions

diff --git a/keyboards/stm32_f103_onekey/Makefile b/keyboards/stm32_f103_onekey/Makefile
new file mode 100644
index 0000000000..5c1793c867
--- /dev/null
+++ b/keyboards/stm32_f103_onekey/Makefile
@@ -0,0 +1,64 @@
+# project specific files
+SRC =	matrix.c \
+	    led.c
+
+# GENERIC STM32F103C8T6 board - stm32duino bootloader
+OPT_DEFS = -DCORTEX_VTOR_INIT=0x2000
+MCU_LDSCRIPT = STM32F103x8_stm32duino_bootloader
+BOARD = GENERIC_STM32_F103
+
+# GENERIC STM32F103C8T6 board - no bootloader (programmer over serial or SWD)
+# OPT_DEFS =
+# MCU_LDSCRIPT = STM32F103x8
+# BOARD = GENERIC_STM32_F103
+
+# MAPLE MINI
+# OPT_DEFS = -DCORTEX_VTOR_INIT=0x5000
+# MCU_LDSCRIPT = STM32F103xB_maplemini_bootloader
+# BOARD = MAPLEMINI_STM32_F103
+
+## chip/board settings
+# the next two should match the directories in
+#  <chibios>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+MCU_FAMILY = STM32
+MCU_SERIES = STM32F1xx
+# linker script to use
+# it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
+#  or <this_dir>/ld/
+# startup code to use
+# is should exist in <chibios>/os/common/ports/ARMCMx/compilers/GCC/mk/
+MCU_STARTUP = stm32f1xx
+# it should exist either in <chibios>/os/hal/boards/
+#  or <this_dir>/boards
+# Cortex version
+# Teensy LC is cortex-m0; Teensy 3.x are cortex-m4
+MCU  = cortex-m3
+# ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+ARMV = 7
+# If you want to be able to jump to bootloader from firmware on STM32 MCUs,
+# set the correct BOOTLOADER_ADDRESS. Either set it here, or define it in
+# ./bootloader_defs.h or in ./boards/<FOO>/bootloader_defs.h (if you have
+# a custom board definition that you plan to reuse).
+# If you're not setting it here, leave it commented out.
+# It is chip dependent, the correct number can be looked up here (page 175):
+# http://www.st.com/web/en/resource/technical/document/application_note/CD00167594.pdf
+# This also requires a patch to chibios:
+#   <tmk_dir>/tmk_core/tool/chibios/ch-bootloader-jump.patch
+#STM32_BOOTLOADER_ADDRESS = 0x1FFFC800
+
+# Build Options
+#   comment out to disable the options.
+#
+#BOOTMAGIC_ENABLE = yes	# Virtual DIP switch configuration
+## BOOTMAGIC is not supported on STM32 chips yet.
+MOUSEKEY_ENABLE ?= yes	# Mouse keys
+EXTRAKEY_ENABLE ?= yes	# Audio control and System control
+# CONSOLE_ENABLE ?= yes	# Console for debug
+COMMAND_ENABLE ?= yes    # Commands for debug and configuration
+SLEEP_LED_ENABLE ?= no   # Breathing sleep LED during USB suspend
+NKRO_ENABLE ?= yes	    # USB Nkey Rollover
+CUSTOM_MATRIX ?= yes # Custom matrix file
+
+ifndef QUANTUM_DIR
+	include ../../Makefile
+endif
diff --git a/keyboards/stm32_f103_onekey/boards/GENERIC_STM32_F103/board.c b/keyboards/stm32_f103_onekey/boards/GENERIC_STM32_F103/board.c
new file mode 100644
index 0000000000..31319ef575
--- /dev/null
+++ b/keyboards/stm32_f103_onekey/boards/GENERIC_STM32_F103/board.c
@@ -0,0 +1,49 @@
+/*

+    ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio

+

+    Licensed under the Apache License, Version 2.0 (the "License");

+    you may not use this file except in compliance with the License.

+    You may obtain a copy of the License at

+

+        http://www.apache.org/licenses/LICENSE-2.0

+

+    Unless required by applicable law or agreed to in writing, software

+    distributed under the License is distributed on an "AS IS" BASIS,

+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

+    See the License for the specific language governing permissions and

+    limitations under the License.

+*/

+

+#include "hal.h"

+

+/**

+ * @brief   PAL setup.

+ * @details Digital I/O ports static configuration as defined in @p board.h.

+ *          This variable is used by the HAL when initializing the PAL driver.

+ */

+#if HAL_USE_PAL || defined(__DOXYGEN__)

+const PALConfig pal_default_config =

+{

+  {VAL_GPIOAODR, VAL_GPIOACRL, VAL_GPIOACRH},

+  {VAL_GPIOBODR, VAL_GPIOBCRL, VAL_GPIOBCRH},

+  {VAL_GPIOCODR, VAL_GPIOCCRL, VAL_GPIOCCRH},

+  {VAL_GPIODODR, VAL_GPIODCRL, VAL_GPIODCRH},

+  {VAL_GPIOEODR, VAL_GPIOECRL, VAL_GPIOECRH},

+};

+#endif

+

+/*

+ * Early initialization code.

+ * This initialization must be performed just after stack setup and before

+ * any other initialization.

+ */

+void __early_init(void) {

+

+  stm32_clock_init();

+}

+

+/*

+ * Board-specific initialization code.

+ */

+void boardInit(void) {

+}

diff --git a/keyboards/stm32_f103_onekey/boards/GENERIC_STM32_F103/board.h b/keyboards/stm32_f103_onekey/boards/GENERIC_STM32_F103/board.h
new file mode 100644
index 0000000000..7253e77826
--- /dev/null
+++ b/keyboards/stm32_f103_onekey/boards/GENERIC_STM32_F103/board.h
@@ -0,0 +1,166 @@
+/*

+    ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio

+

+    Licensed under the Apache License, Version 2.0 (the "License");

+    you may not use this file except in compliance with the License.

+    You may obtain a copy of the License at

+

+        http://www.apache.org/licenses/LICENSE-2.0

+

+    Unless required by applicable law or agreed to in writing, software

+    distributed under the License is distributed on an "AS IS" BASIS,

+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

+    See the License for the specific language governing permissions and

+    limitations under the License.

+*/

+

+#ifndef _BOARD_H_

+#define _BOARD_H_

+

+/*

+ * Setup for a Generic STM32F103 board.

+ */

+

+/*

+ * Board identifier.

+ */

+#define BOARD_GENERIC_STM32_F103

+#define BOARD_NAME              "Generic STM32F103x board"

+

+/*

+ * Board frequencies.

+ */

+#define STM32_LSECLK            32768

+#define STM32_HSECLK            8000000

+

+/*

+ * MCU type, supported types are defined in ./os/hal/platforms/hal_lld.h.

+ */

+#define STM32F103xB

+

+/*

+ * IO pins assignments

+ */

+

+/* on-board */

+

+#define GPIOC_LED               13

+#define GPIOD_OSC_IN            0

+#define GPIOD_OSC_OUT           1

+

+/* In case your board has a "USB enable" hardware

+   controlled by a pin, define it here. (It could be just

+   a 1.5k resistor connected to D+ line.)

+*/

+/*

+#define GPIOB_USB_DISC          10

+*/

+

+/*

+ * I/O ports initial setup, this configuration is established soon after reset

+ * in the initialization code.

+ *

+ * The digits have the following meaning:

+ *   0 - Analog input.

+ *   1 - Push Pull output 10MHz.

+ *   2 - Push Pull output 2MHz.

+ *   3 - Push Pull output 50MHz.

+ *   4 - Digital input.

+ *   5 - Open Drain output 10MHz.

+ *   6 - Open Drain output 2MHz.

+ *   7 - Open Drain output 50MHz.

+ *   8 - Digital input with PullUp or PullDown resistor depending on ODR.

+ *   9 - Alternate Push Pull output 10MHz.

+ *   A - Alternate Push Pull output 2MHz.

+ *   B - Alternate Push Pull output 50MHz.

+ *   C - Reserved.

+ *   D - Alternate Open Drain output 10MHz.

+ *   E - Alternate Open Drain output 2MHz.

+ *   F - Alternate Open Drain output 50MHz.

+ * Please refer to the STM32 Reference Manual for details.

+ */

+

+/*

+ * Port A setup.

+ * Everything input with pull-up except:

+ * PA2  - Alternate output  (USART2 TX).

+ * PA3  - Normal input      (USART2 RX).

+ * PA9  - Alternate output  (USART1 TX).

+ * PA10 - Normal input      (USART1 RX).

+ */

+#define VAL_GPIOACRL            0x88884B88      /*  PA7...PA0 */

+#define VAL_GPIOACRH            0x888884B8      /* PA15...PA8 */

+#define VAL_GPIOAODR            0xFFFFFFFF

+

+/*

+ * Port B setup.

+ * Everything input with pull-up except:

+ * PB10    - Push Pull output  (USB switch).

+ */

+#define VAL_GPIOBCRL            0x88888888      /*  PB7...PB0 */

+#define VAL_GPIOBCRH            0x88888388      /* PB15...PB8 */

+#define VAL_GPIOBODR            0xFFFFFFFF

+

+/*

+ * Port C setup.

+ * Everything input with pull-up except:

+ * PC13    - Push Pull output  (LED).

+ */

+#define VAL_GPIOCCRL            0x88888888      /*  PC7...PC0 */

+#define VAL_GPIOCCRH            0x88388888      /* PC15...PC8 */

+#define VAL_GPIOCODR            0xFFFFFFFF

+

+/*

+ * Port D setup.

+ * Everything input with pull-up except:

+ * PD0  - Normal input (XTAL).

+ * PD1  - Normal input (XTAL).

+ */

+#define VAL_GPIODCRL            0x88888844      /*  PD7...PD0 */

+#define VAL_GPIODCRH            0x88888888      /* PD15...PD8 */

+#define VAL_GPIODODR            0xFFFFFFFF

+

+/*

+ * Port E setup.

+ * Everything input with pull-up except:

+ */

+#define VAL_GPIOECRL            0x88888888      /*  PE7...PE0 */

+#define VAL_GPIOECRH            0x88888888      /* PE15...PE8 */

+#define VAL_GPIOEODR            0xFFFFFFFF

+

+/*

+ * USB bus activation macro, required by the USB driver.

+ */

+/* The point is that most of the generic STM32F103* boards

+   have a 1.5k resistor connected on one end to the D+ line

+   and on the other end to some pin. Or even a slightly more

+   complicated "USB enable" circuit, controlled by a pin.

+   That should go here.

+

+   However on some boards (e.g. one that I have), there's no

+   such hardware. In which case it's better to not do anything.

+*/

+/*

+#define usb_lld_connect_bus(usbp) palClearPad(GPIOB, GPIOB_USB_DISC)

+*/

+#define usb_lld_connect_bus(usbp) palSetPadMode(GPIOA, 12, PAL_MODE_INPUT);

+

+/*

+ * USB bus de-activation macro, required by the USB driver.

+ */

+/*

+#define usb_lld_disconnect_bus(usbp) palSetPad(GPIOB, GPIOB_USB_DISC)

+*/

+#define usb_lld_disconnect_bus(usbp) palSetPadMode(GPIOA, 12, PAL_MODE_OUTPUT_PUSHPULL); palClearPad(GPIOA, 12);

+

+#if !defined(_FROM_ASM_)

+#ifdef __cplusplus

+extern "C" {

+#endif

+  void boardInit(void);

+#ifdef __cplusplus

+}

+#endif

+#endif /* _FROM_ASM_ */

+

+#endif /* _BOARD_H_ */

diff --git a/keyboards/stm32_f103_onekey/boards/GENERIC_STM32_F103/board.mk b/keyboards/stm32_f103_onekey/boards/GENERIC_STM32_F103/board.mk
new file mode 100644
index 0000000000..d692c0ee46
--- /dev/null
+++ b/keyboards/stm32_f103_onekey/boards/GENERIC_STM32_F103/board.mk
@@ -0,0 +1,5 @@
+# List of all the board related files.

+BOARDSRC = $(KEYBOARD_PATH)/boards/GENERIC_STM32_F103/board.c

+

+# Required include directories

+BOARDINC = $(KEYBOARD_PATH)/boards/GENERIC_STM32_F103

diff --git a/keyboards/stm32_f103_onekey/boards/GENERIC_STM32_F103/mini_stm32_mapping.png b/keyboards/stm32_f103_onekey/boards/GENERIC_STM32_F103/mini_stm32_mapping.png
new file mode 100644
index 0000000000..c44a7d9ebc
--- /dev/null
+++ b/keyboards/stm32_f103_onekey/boards/GENERIC_STM32_F103/mini_stm32_mapping.png
diff --git a/keyboards/stm32_f103_onekey/boards/maple_mini_mapping.png b/keyboards/stm32_f103_onekey/boards/maple_mini_mapping.png
new file mode 100644
index 0000000000..12cfa81db2
--- /dev/null
+++ b/keyboards/stm32_f103_onekey/boards/maple_mini_mapping.png
diff --git a/keyboards/stm32_f103_onekey/bootloader_defs.h b/keyboards/stm32_f103_onekey/bootloader_defs.h
new file mode 100644
index 0000000000..0f45203cb6
--- /dev/null
+++ b/keyboards/stm32_f103_onekey/bootloader_defs.h
@@ -0,0 +1,10 @@
+/* Address for jumping to bootloader on STM32 chips. */
+/* It is chip dependent, the correct number can be looked up here (page 175):
+ * http://www.st.com/web/en/resource/technical/document/application_note/CD00167594.pdf
+ * This also requires a patch to chibios:
+ *  <tmk_dir>/tmk_core/tool/chibios/ch-bootloader-jump.patch
+ */
+
+// STM32F103* does NOT have an USB bootloader in ROM (only serial),
+//  so setting anything here does not make much sense
+// #define STM32_BOOTLOADER_ADDRESS 0x1FFFC800
diff --git a/keyboards/stm32_f103_onekey/chconf.h b/keyboards/stm32_f103_onekey/chconf.h
new file mode 100644
index 0000000000..dfb1f9dfb9
--- /dev/null
+++ b/keyboards/stm32_f103_onekey/chconf.h
@@ -0,0 +1,524 @@
+/*
+    ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/**
+ * @file    templates/chconf.h
+ * @brief   Configuration file template.
+ * @details A copy of this file must be placed in each project directory, it
+ *          contains the application specific kernel settings.
+ *
+ * @addtogroup config
+ * @details Kernel related settings and hooks.
+ * @{
+ */
+
+#ifndef CHCONF_H
+#define CHCONF_H
+
+#define _CHIBIOS_RT_CONF_
+
+/*===========================================================================*/
+/**
+ * @name System timers settings
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   System time counter resolution.
+ * @note    Allowed values are 16 or 32 bits.
+ */
+#define CH_CFG_ST_RESOLUTION                16
+
+/**
+ * @brief   System tick frequency.
+ * @details Frequency of the system timer that drives the system ticks. This
+ *          setting also defines the system tick time unit.
+ */
+#define CH_CFG_ST_FREQUENCY                 2000
+
+/**
+ * @brief   Time delta constant for the tick-less mode.
+ * @note    If this value is zero then the system uses the classic
+ *          periodic tick. This value represents the minimum number
+ *          of ticks that is safe to specify in a timeout directive.
+ *          The value one is not valid, timeouts are rounded up to
+ *          this value.
+ */
+#define CH_CFG_ST_TIMEDELTA                 2
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Kernel parameters and options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   Round robin interval.
+ * @details This constant is the number of system ticks allowed for the
+ *          threads before preemption occurs. Setting this value to zero
+ *          disables the preemption for threads with equal priority and the
+ *          round robin becomes cooperative. Note that higher priority
+ *          threads can still preempt, the kernel is always preemptive.
+ * @note    Disabling the round robin preemption makes the kernel more compact
+ *          and generally faster.
+ * @note    The round robin preemption is not supported in tickless mode and
+ *          must be set to zero in that case.
+ */
+#define CH_CFG_TIME_QUANTUM                 0
+
+/**
+ * @brief   Managed RAM size.
+ * @details Size of the RAM area to be managed by the OS. If set to zero
+ *          then the whole available RAM is used. The core memory is made
+ *          available to the heap allocator and/or can be used directly through
+ *          the simplified core memory allocator.
+ *
+ * @note    In order to let the OS manage the whole RAM the linker script must
+ *          provide the @p __heap_base__ and @p __heap_end__ symbols.
+ * @note    Requires @p CH_CFG_USE_MEMCORE.
+ */
+#define CH_CFG_MEMCORE_SIZE                 0
+
+/**
+ * @brief   Idle thread automatic spawn suppression.
+ * @details When this option is activated the function @p chSysInit()
+ *          does not spawn the idle thread. The application @p main()
+ *          function becomes the idle thread and must implement an
+ *          infinite loop.
+ */
+#define CH_CFG_NO_IDLE_THREAD               FALSE
+
+/* Use __WFI in the idle thread for waiting. Does lower the power
+ * consumption. */
+#define CORTEX_ENABLE_WFI_IDLE              TRUE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Performance options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   OS optimization.
+ * @details If enabled then time efficient rather than space efficient code
+ *          is used when two possible implementations exist.
+ *
+ * @note    This is not related to the compiler optimization options.
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_OPTIMIZE_SPEED               TRUE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Subsystem options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   Time Measurement APIs.
+ * @details If enabled then the time measurement APIs are included in
+ *          the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_TM                       FALSE
+
+/**
+ * @brief   Threads registry APIs.
+ * @details If enabled then the registry APIs are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_REGISTRY                 TRUE
+
+/**
+ * @brief   Threads synchronization APIs.
+ * @details If enabled then the @p chThdWait() function is included in
+ *          the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_WAITEXIT                 TRUE
+
+/**
+ * @brief   Semaphores APIs.
+ * @details If enabled then the Semaphores APIs are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_SEMAPHORES               TRUE
+
+/**
+ * @brief   Semaphores queuing mode.
+ * @details If enabled then the threads are enqueued on semaphores by
+ *          priority rather than in FIFO order.
+ *
+ * @note    The default is @p FALSE. Enable this if you have special
+ *          requirements.
+ * @note    Requires @p CH_CFG_USE_SEMAPHORES.
+ */
+#define CH_CFG_USE_SEMAPHORES_PRIORITY      FALSE
+
+/**
+ * @brief   Mutexes APIs.
+ * @details If enabled then the mutexes APIs are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_MUTEXES                  TRUE
+
+/**
+ * @brief   Enables recursive behavior on mutexes.
+ * @note    Recursive mutexes are heavier and have an increased
+ *          memory footprint.
+ *
+ * @note    The default is @p FALSE.
+ * @note    Requires @p CH_CFG_USE_MUTEXES.
+ */
+#define CH_CFG_USE_MUTEXES_RECURSIVE        FALSE
+
+/**
+ * @brief   Conditional Variables APIs.
+ * @details If enabled then the conditional variables APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_MUTEXES.
+ */
+#define CH_CFG_USE_CONDVARS                 TRUE
+
+/**
+ * @brief   Conditional Variables APIs with timeout.
+ * @details If enabled then the conditional variables APIs with timeout
+ *          specification are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_CONDVARS.
+ */
+#define CH_CFG_USE_CONDVARS_TIMEOUT         FALSE
+
+/**
+ * @brief   Events Flags APIs.
+ * @details If enabled then the event flags APIs are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_EVENTS                   TRUE
+
+/**
+ * @brief   Events Flags APIs with timeout.
+ * @details If enabled then the events APIs with timeout specification
+ *          are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_EVENTS.
+ */
+#define CH_CFG_USE_EVENTS_TIMEOUT           TRUE
+
+/**
+ * @brief   Synchronous Messages APIs.
+ * @details If enabled then the synchronous messages APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_MESSAGES                 TRUE
+
+/**
+ * @brief   Synchronous Messages queuing mode.
+ * @details If enabled then messages are served by priority rather than in
+ *          FIFO order.
+ *
+ * @note    The default is @p FALSE. Enable this if you have special
+ *          requirements.
+ * @note    Requires @p CH_CFG_USE_MESSAGES.
+ */
+#define CH_CFG_USE_MESSAGES_PRIORITY        FALSE
+
+/**
+ * @brief   Mailboxes APIs.
+ * @details If enabled then the asynchronous messages (mailboxes) APIs are
+ *          included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_SEMAPHORES.
+ */
+#define CH_CFG_USE_MAILBOXES                TRUE
+
+/**
+ * @brief   Core Memory Manager APIs.
+ * @details If enabled then the core memory manager APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_MEMCORE                  TRUE
+
+/**
+ * @brief   Heap Allocator APIs.
+ * @details If enabled then the memory heap allocator APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_MEMCORE and either @p CH_CFG_USE_MUTEXES or
+ *          @p CH_CFG_USE_SEMAPHORES.
+ * @note    Mutexes are recommended.
+ */
+#define CH_CFG_USE_HEAP                     TRUE
+
+/**
+ * @brief   Memory Pools Allocator APIs.
+ * @details If enabled then the memory pools allocator APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_MEMPOOLS                 FALSE
+
+/**
+ * @brief   Dynamic Threads APIs.
+ * @details If enabled then the dynamic threads creation APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_WAITEXIT.
+ * @note    Requires @p CH_CFG_USE_HEAP and/or @p CH_CFG_USE_MEMPOOLS.
+ */
+#define CH_CFG_USE_DYNAMIC                  FALSE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Debug options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   Debug option, kernel statistics.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_STATISTICS                   FALSE
+
+/**
+ * @brief   Debug option, system state check.
+ * @details If enabled the correct call protocol for system APIs is checked
+ *          at runtime.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_SYSTEM_STATE_CHECK           FALSE
+
+/**
+ * @brief   Debug option, parameters checks.
+ * @details If enabled then the checks on the API functions input
+ *          parameters are activated.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_ENABLE_CHECKS                FALSE
+
+/**
+ * @brief   Debug option, consistency checks.
+ * @details If enabled then all the assertions in the kernel code are
+ *          activated. This includes consistency checks inside the kernel,
+ *          runtime anomalies and port-defined checks.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_ENABLE_ASSERTS               FALSE
+
+/**
+ * @brief   Debug option, trace buffer.
+ * @details If enabled then the trace buffer is activated.
+ *
+ * @note    The default is @p CH_DBG_TRACE_MASK_DISABLED.
+ */
+#define CH_DBG_TRACE_MASK                   CH_DBG_TRACE_MASK_DISABLED
+
+/**
+ * @brief   Trace buffer entries.
+ * @note    The trace buffer is only allocated if @p CH_DBG_TRACE_MASK is
+ *          different from @p CH_DBG_TRACE_MASK_DISABLED.
+ */
+#define CH_DBG_TRACE_BUFFER_SIZE            128
+
+/**
+ * @brief   Debug option, stack checks.
+ * @details If enabled then a runtime stack check is performed.
+ *
+ * @note    The default is @p FALSE.
+ * @note    The stack check is performed in a architecture/port dependent way.
+ *          It may not be implemented or some ports.
+ * @note    The default failure mode is to halt the system with the global
+ *          @p panic_msg variable set to @p NULL.
+ */
+#define CH_DBG_ENABLE_STACK_CHECK           FALSE
+
+/**
+ * @brief   Debug option, stacks initialization.
+ * @details If enabled then the threads working area is filled with a byte
+ *          value when a thread is created. This can be useful for the
+ *          runtime measurement of the used stack.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_FILL_THREADS                 FALSE
+
+/**
+ * @brief   Debug option, threads profiling.
+ * @details If enabled then a field is added to the @p thread_t structure that
+ *          counts the system ticks occurred while executing the thread.
+ *
+ * @note    The default is @p FALSE.
+ * @note    This debug option is not currently compatible with the
+ *          tickless mode.
+ */
+#define CH_DBG_THREADS_PROFILING            FALSE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Kernel hooks
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   Threads descriptor structure extension.
+ * @details User fields added to the end of the @p thread_t structure.
+ */
+#define CH_CFG_THREAD_EXTRA_FIELDS                                          \
+  /* Add threads custom fields here.*/
+
+/**
+ * @brief   Threads initialization hook.
+ * @details User initialization code added to the @p chThdInit() API.
+ *
+ * @note    It is invoked from within @p chThdInit() and implicitly from all
+ *          the threads creation APIs.
+ */
+#define CH_CFG_THREAD_INIT_HOOK(tp) {                                       \
+  /* Add threads initialization code here.*/                                \
+}
+
+/**
+ * @brief   Threads finalization hook.
+ * @details User finalization code added to the @p chThdExit() API.
+ */
+#define CH_CFG_THREAD_EXIT_HOOK(tp) {                                       \
+  /* Add threads finalization code here.*/                                  \
+}
+
+/**
+ * @brief   Context switch hook.
+ * @details This hook is invoked just before switching between threads.
+ */
+#define CH_CFG_CONTEXT_SWITCH_HOOK(ntp, otp) {                              \
+  /* Context switch code here.*/                                            \
+}
+
+/**
+ * @brief   ISR enter hook.
+ */
+#define CH_CFG_IRQ_PROLOGUE_HOOK() {                                        \
+  /* IRQ prologue code here.*/                                              \
+}
+
+/**
+ * @brief   ISR exit hook.
+ */
+#define CH_CFG_IRQ_EPILOGUE_HOOK() {                                        \
+  /* IRQ epilogue code her