[stm32variant] Change generic variant generation

- variant.* files are renamed variant_generic.*
Generic variant header file will be included thanks
a single variant.h using a variable defined in boards.txt
- Clean template to remove useless extern "C"
- Include guards replaced by #pragma once directive

Signed-off-by: Frederic Pillon <frederic.pillon@st.com>

Author: fpistm

CI/utils/stm32variant.py

@@ -1241,7 +1241,6 @@ def print_variant(generic_list):
     variant_h_file.write(
         variant_h_template.render(
             year=datetime.datetime.now().year,
-            generic_list=generic_list,
             pins_number_list=pins_number_list,
             alt_pins_list=alt_pins_list,
             waltpin=max(waltpin),
@@ -1720,8 +1719,8 @@ def manage_repo():
 periph_c_filename = "PeripheralPins.c"
 pinvar_h_filename = "PinNamesVar.h"
 config_filename = Path("variant_config.json")
-variant_h_filename = "variant.h"
-variant_cpp_filename = "variant.cpp"
+variant_h_filename = "variant_generic.h"
+variant_cpp_filename = "variant_generic.cpp"
 boards_entry_filename = "boards_entry.txt"
 generic_clock_filename = "generic_clock.c"
 repo_local_path = cur_dir / "repo"

CI/utils/templates/variant.cpp renamed to CI/utils/templates/variant_generic.cpp

@@ -14,10 +14,6 @@
 
 #include "pins_arduino.h"
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 // Digital PinName array
 const PinName digitalPin[] = {
 {% for pinname in pinnames_list %}
@@ -40,8 +36,5 @@ const uint32_t analogInputPin[] = {
 {% endfor %}
 };
 
-#ifdef __cplusplus
-} // extern "C"
-#endif
 #endif /* ARDUINO_GENERIC_* */
 

CI/utils/templates/variant.h renamed to CI/utils/templates/variant_generic.h

@@ -10,16 +10,7 @@
  *
  *******************************************************************************
  */
-
-#if !defined(ARDUINO_GENERIC_{{generic_list[0].board}}){% for name in generic_list[1:] %} && !defined(ARDUINO_GENERIC_{{name.board}}){% endfor %}
-
-#include VARIANT_BOARD_H
-#else
-#ifndef _VARIANT_ARDUINO_STM32_
-#define _VARIANT_ARDUINO_STM32_
-#ifdef __cplusplus
-extern "C" {
-#endif // __cplusplus
+#pragma once
 
 /*----------------------------------------------------------------------------
  *        STM32 pins number
@@ -46,66 +37,66 @@ extern "C" {
 
 // On-board LED pin number
 #ifndef LED_BUILTIN
-#define LED_BUILTIN             ND
+  #define LED_BUILTIN           ND
 #endif
 
 // On-board user button
 #ifndef USER_BTN
-#define USER_BTN                ND
+  #define USER_BTN              ND
 #endif
 
 // SPI definitions
 #ifndef PIN_SPI_SS
-#define PIN_SPI_SS              {{spi_pins.ss}}
+  #define PIN_SPI_SS            {{spi_pins.ss}}
 #endif
 #ifndef PIN_SPI_SS1
-#define PIN_SPI_SS1             {{spi_pins.ss1}}
+  #define PIN_SPI_SS1           {{spi_pins.ss1}}
 #endif
 #ifndef PIN_SPI_SS2
-#define PIN_SPI_SS2             {{spi_pins.ss2}}
+  #define PIN_SPI_SS2           {{spi_pins.ss2}}
 #endif
 #ifndef PIN_SPI_SS3
-#define PIN_SPI_SS3             {{spi_pins.ss3}}
+  #define PIN_SPI_SS3           {{spi_pins.ss3}}
 #endif
 #ifndef PIN_SPI_MOSI
-#define PIN_SPI_MOSI            {{spi_pins.mosi}}
+  #define PIN_SPI_MOSI          {{spi_pins.mosi}}
 #endif
 #ifndef PIN_SPI_MISO
-#define PIN_SPI_MISO            {{spi_pins.miso}}
+  #define PIN_SPI_MISO          {{spi_pins.miso}}
 #endif
 #ifndef PIN_SPI_SCK
-#define PIN_SPI_SCK             {{spi_pins.sck}}
+  #define PIN_SPI_SCK           {{spi_pins.sck}}
 #endif
 
 // I2C definitions
 #ifndef PIN_WIRE_SDA
-#define PIN_WIRE_SDA            {{i2c_pins.sda}}
+  #define PIN_WIRE_SDA          {{i2c_pins.sda}}
 #endif
 #ifndef PIN_WIRE_SCL
-#define PIN_WIRE_SCL            {{i2c_pins.scl}}
+  #define PIN_WIRE_SCL          {{i2c_pins.scl}}
 #endif
 
 // Timer Definitions
 // Use TIM6/TIM7 when possible as servo and tone don't need GPIO output pin
 #ifndef TIMER_TONE
-#define TIMER_TONE              {{timer.tone}}
+  #define TIMER_TONE            {{timer.tone}}
 #endif
 #ifndef TIMER_SERVO
-#define TIMER_SERVO             {{timer.servo}}
+  #define TIMER_SERVO           {{timer.servo}}
 #endif
 
 // UART Definitions
 #ifndef SERIAL_UART_INSTANCE
-#define SERIAL_UART_INSTANCE    {{serial.instance}}
+  #define SERIAL_UART_INSTANCE  {{serial.instance}}
 #endif
 
 // Default pin used for generic 'Serial' instance
 // Mandatory for Firmata
 #ifndef PIN_SERIAL_RX
-#define PIN_SERIAL_RX           {{serial.rx}}
+  #define PIN_SERIAL_RX         {{serial.rx}}
 #endif
 #ifndef PIN_SERIAL_TX
-#define PIN_SERIAL_TX           {{serial.tx}}
+  #define PIN_SERIAL_TX         {{serial.tx}}
 #endif
 
 {% if hal_modules_list %}
@@ -115,9 +106,6 @@ extern "C" {
 {% endfor %}
 
 {% endif %}
-#ifdef __cplusplus
-} // extern "C"
-#endif
 
 /*----------------------------------------------------------------------------
  *        Arduino objects - C++ only
@@ -147,6 +135,3 @@ extern "C" {
   #endif
 #endif
 
-#endif /* _VARIANT_ARDUINO_STM32_ */
-#endif /* !ARDUINO_GENERIC_* */
-