From 3a66ae51c3f34108428e582ef693866d71496d16 Mon Sep 17 00:00:00 2001
From: Daniel Friesel <daniel.friesel@uos.de>
Date: Fri, 28 Aug 2020 15:25:37 +0200
Subject: Expose configuration via Kconfig

---
 src/arch/arduino-nano/Kconfig      | 37 ++++++++++++++++++++++++++
 src/arch/arduino-nano/Makefile.inc | 54 +++++++++++++++++++++++++++++++++-----
 src/arch/arduino-nano/arch.cc      |  5 ----
 src/arch/arduino-nano/prompt       |  1 +
 4 files changed, 85 insertions(+), 12 deletions(-)
 create mode 100644 src/arch/arduino-nano/Kconfig
 create mode 100644 src/arch/arduino-nano/prompt

(limited to 'src/arch/arduino-nano')

diff --git a/src/arch/arduino-nano/Kconfig b/src/arch/arduino-nano/Kconfig
new file mode 100644
index 0000000..7054d44
--- /dev/null
+++ b/src/arch/arduino-nano/Kconfig
@@ -0,0 +1,37 @@
+config arch_arduino_nano_driver_adc
+bool "ADC (Analog-Digital-Converter)"
+select meta_driver_adc
+
+config arch_arduino_nano_driver_i2c
+bool "I2C"
+select meta_driver_i2c
+
+config arch_arduino_nano_driver_neopixel
+bool "WS2812b (NeoPixel)"
+select meta_driver_neopixel
+
+config arch_arduino_nano_driver_spi
+bool "SPI"
+select meta_driver_spi
+
+config arch_arduino_nano_driver_stdin
+bool "UART Input"
+select meta_driver_stdin
+
+config arch_arduino_nano_driver_timer
+bool "Timer with Interrupts"
+select meta_driver_timer
+
+choice arch_arduino_nano_timer1
+bool "Timer 1"
+optional
+
+config arch_arduino_nano_driver_uptime
+bool "Uptime Counter"
+select meta_driver_uptime
+
+config arch_arduino_nano_driver_counter
+bool "Cycle Counter"
+select meta_driver_counter
+
+endchoice
diff --git a/src/arch/arduino-nano/Makefile.inc b/src/arch/arduino-nano/Makefile.inc
index 5445bc1..a3412fb 100644
--- a/src/arch/arduino-nano/Makefile.inc
+++ b/src/arch/arduino-nano/Makefile.inc
@@ -30,37 +30,77 @@ endif
 CXX_TARGETS += src/arch/arduino-nano/arch.cc
 CXX_TARGETS += src/arch/arduino-nano/driver/gpio.cc
 CXX_TARGETS += src/arch/arduino-nano/driver/stdout.cc
-CXX_TARGETS += src/arch/arduino-nano/driver/uptime.cc
+
+# Command-line driver selection
 
 ifneq ($(findstring softi2c,${drivers}), )
 else ifneq ($(findstring i2c,${arch_drivers}), )
-	CXX_TARGETS += src/arch/arduino-nano/driver/i2c.cc
+	CONFIG_arch_arduino_nano_driver_i2c = y
 endif
 
 ifneq ($(findstring adc,${arch_drivers}), )
-	CXX_TARGETS += src/arch/arduino-nano/driver/adc.cc
+	CONFIG_arch_arduino_nano_driver_adc = y
 endif
 
 ifneq ($(findstring spi,${arch_drivers}), )
-	CXX_TARGETS += src/arch/arduino-nano/driver/spi.cc
+	CONFIG_arch_arduino_nano_driver_spi = y
 endif
 
 ifneq ($(findstring stdin,${arch_drivers}), )
-	CXX_TARGETS += src/arch/arduino-nano/driver/stdin.cc
+	CONFIG_arch_arduino_nano_driver_stdin = y
 endif
 
 ifneq ($(findstring timer,${arch_drivers}), )
-	CXX_TARGETS += src/arch/arduino-nano/driver/timer.cc
+	CONFIG_arch_arduino_nano_driver_timer = y
 endif
 
 ifneq ($(findstring counter,${arch_drivers}), )
-	CXX_TARGETS += src/arch/arduino-nano/driver/counter.cc
+	CONFIG_arch_arduino_nano_driver_counter = y
 endif
 
 ifneq ($(findstring neopixel,${arch_drivers}), )
+	CONFIG_arch_arduino_nano_driver_neopixel = y
+endif
+
+ifeq (${timer_s}, 1)
+	CONFIG_arch_arduino_nano_driver_uptime = y
+endif
+
+# Kconfig driver selection
+
+ifdef CONFIG_arch_arduino_nano_driver_i2c
+	CXX_TARGETS += src/arch/arduino-nano/driver/i2c.cc
+endif
+
+ifdef CONFIG_arch_arduino_nano_driver_adc
+	CXX_TARGETS += src/arch/arduino-nano/driver/adc.cc
+endif
+
+ifdef CONFIG_arch_arduino_nano_driver_spi
+	CXX_TARGETS += src/arch/arduino-nano/driver/spi.cc
+endif
+
+ifdef CONFIG_arch_arduino_nano_driver_stdin
+	CXX_TARGETS += src/arch/arduino-nano/driver/stdin.cc
+endif
+
+ifdef CONFIG_arch_arduino_nano_driver_timer
+	CXX_TARGETS += src/arch/arduino-nano/driver/timer.cc
+endif
+
+ifdef CONFIG_arch_arduino_nano_driver_counter
+	CXX_TARGETS += src/arch/arduino-nano/driver/counter.cc
+endif
+
+ifdef CONFIG_arch_arduino_nano_driver_neopixel
 	CXX_TARGETS += src/arch/arduino-nano/driver/neopixel.cc
 endif
 
+ifdef CONFIG_arch_arduino_nano_driver_uptime
+	COMMON_FLAGS += -DTIMER_S
+	CXX_TARGETS += src/arch/arduino-nano/driver/uptime.cc
+endif
+
 ifeq (${cpu_freq}, 16000000)
 	uart_baud = 57600
 else ifeq (${cpu_freq}, 8000000)
diff --git a/src/arch/arduino-nano/arch.cc b/src/arch/arduino-nano/arch.cc
index 1023927..48b50f8 100644
--- a/src/arch/arduino-nano/arch.cc
+++ b/src/arch/arduino-nano/arch.cc
@@ -38,11 +38,6 @@ void Arch::setup(void)
 #error Unsupported F_CPU
 #endif
 
-#ifdef TIMER_CYCLES
-	TCCR0A = 0;
-	TCCR0B = _BV(CS00);
-#endif
-
 #if defined(WITH_LOOP) || defined(TIMER_S)
 	TCCR1A = 0;
 	TCCR1B = _BV(WGM12) | _BV(CS12) | _BV(CS10); // /1024
diff --git a/src/arch/arduino-nano/prompt b/src/arch/arduino-nano/prompt
new file mode 100644
index 0000000..1994e4c
--- /dev/null
+++ b/src/arch/arduino-nano/prompt
@@ -0,0 +1 @@
+Arduino Nano (Mega328)
-- 
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