10 files changed, 236 insertions, 0 deletions
diff --git a/include/mcu/Kconfig b/include/mcu/Kconfig
new file mode 100644
index 0000000..a69903f
--- /dev/null
+++ b/include/mcu/Kconfig
@@ -0,0 +1,11 @@
+config MMCU
+    string
+    default "atmega328p" if ATMEGA328P
+    
+choice MCU
+    prompt "Microcontroller (MMCU)"
+
+source include/mcu/atmega328p.Kconfig
+source include/mcu/attiny85.Kconfig
+
+endchoice
diff --git a/include/mcu/atmega328p.Kconfig b/include/mcu/atmega328p.Kconfig
new file mode 100644
index 0000000..5b4bf27
--- /dev/null
+++ b/include/mcu/atmega328p.Kconfig
@@ -0,0 +1,8 @@
+config ATMEGA328P
+    bool "atmega328p"
+    select MCUSUPPORT_IOPORTS
+    select MCUSUPPORT_PCINT0
+    select MCUSUPPORT_PCINT1
+    select MCUSUPPORT_PCINT2
+    select MCUSUPPORT_SPI
+    select MCUSUPPORT_USART
diff --git a/include/mcu/atmega328p.h b/include/mcu/atmega328p.h
new file mode 100644
index 0000000..994e9e6
--- /dev/null
+++ b/include/mcu/atmega328p.h
@@ -0,0 +1,63 @@
+/* This is specific configuration for ATmega328P.
+ * Also applies on ATmega48A, ATmega48PA, ATmega88A, ATmega88PA, ATmega168A and
+ * ATmega168PA.
+ */
+#include <avr/io.h>
+
+// IO Ports
+#define MCUSUPPORT_IOPORTS
+#define IO_B 0
+#define IO_C 1
+#define IO_D 2
+#define IO_PIN(GROUP)  (* (volatile uint8_t *)(PINB + 0x3*GROUP))
+#define IO_DDR(GROUP)  (* (volatile uint8_t *)(DDRB + 0x3*GROUP))
+#define IO_PORT(GROUP) (* (volatile uint8_t *)(PORTB + 0x3*GROUP))
+#define IO_B0 IO_B, (1 << 0)
+#define IO_B1 IO_B, (1 << 1)
+#define IO_B2 IO_B, (1 << 2)
+#define IO_B3 IO_B, (1 << 3)
+#define IO_B4 IO_B, (1 << 4)
+#define IO_B5 IO_B, (1 << 5)
+#define IO_B6 IO_B, (1 << 6)
+#define IO_B7 IO_B, (1 << 7)
+#define IO_C0 IO_C, (1 << 0)
+#define IO_C1 IO_C, (1 << 1)
+#define IO_C2 IO_C, (1 << 2)
+#define IO_C3 IO_C, (1 << 3)
+#define IO_C4 IO_C, (1 << 4)
+#define IO_C5 IO_C, (1 << 5)
+#define IO_C6 IO_C, (1 << 6)
+#define IO_D0 IO_D, (1 << 0)
+#define IO_D1 IO_D, (1 << 1)
+#define IO_D2 IO_D, (1 << 2)
+#define IO_D3 IO_D, (1 << 3)
+#define IO_D4 IO_D, (1 << 4)
+#define IO_D5 IO_D, (1 << 5)
+#define IO_D6 IO_D, (1 << 6)
+#define IO_D7 IO_D, (1 << 7)
+#define MCUSUPPORT_PCINT0 8
+#define MCUSUPPORT_PCINT1 8
+#define MCUSUPPORT_PCINT2 8
+// SPI
+#define MCUSUPPORT_SPI
+#define DDR_SPI     DDRB
+#define DD_SS       DDB2
+#define DD_MOSI     DDB3
+#define DD_MISO     DDB4
+#define DD_SCLK     DDB5
+#define PORT_SPI    PORTB
+#define PORT_SS     PORTB2
+#define PORT_MOSI   PORTB3
+#define PORT_MISO   PORTB4
+#define PORT_SCLK   PORTB5
+// USART
+#define MCUSUPPORT_USART
+// TWI
+#define MCUSUPPORT_TWI
+// TIMERS
+#define MCUSUPPORT_TIMER_0
+#define MCUSUPPORT_TIMER_1
+#define MCUSUPPORT_TIMER_2
+#define COUNTER0_PWM 0
+#define COUNTER1_16PWM 1
+#define COUNTER2_PWM_ASYNC 2
diff --git a/include/mcu/atmega32u4.h b/include/mcu/atmega32u4.h
new file mode 100644
index 0000000..16351e8
--- /dev/null
+++ b/include/mcu/atmega32u4.h
@@ -0,0 +1,19 @@
+/* This is specific configuration for ATmega32U4.
+ * This configuration also applies on ATmega16U4.
+ */
+#include <avr/io.h>
+
+// SPI
+#define MCUSUPPORT_SPI
+#define DDR_SPI     DDRB
+#define DD_SS       DDB0
+#define DD_SCLK     DDB1
+#define DD_MOSI     DDB2
+#define DD_MISO     DDB3
+#define PORT_SPI    PORTB
+#define PORT_SS     PORTB0
+#define PORT_SCLK   PORTB1
+#define PORT_MOSI   PORTB2
+#define PORT_MISO   PORTB3
+// USART
+#define MCUSUPPORT_USART0
diff --git a/include/mcu/atmega8a.h b/include/mcu/atmega8a.h
new file mode 100644
index 0000000..a2d3adf
--- /dev/null
+++ b/include/mcu/atmega8a.h
@@ -0,0 +1,18 @@
+/* This is specific configuration for ATmega8A.
+ */
+#include <avr/io.h>
+
+// SPI
+#define MCUSUPPORT_SPI
+#define DDR_SPI     DDRB
+#define DD_SS       DDB2
+#define DD_SCLK     DDB5
+#define DD_MOSI     DDB3
+#define DD_MISO     DDB4
+#define PORT_SPI    PORTB
+#define PORT_SS     PORTB2
+#define PORT_SCLK   PORTB5
+#define PORT_MOSI   PORTB3
+#define PORT_MISO   PORTB4
+// USART
+#define MCUSUPPORT_USART0
diff --git a/include/mcu/attiny4313.h b/include/mcu/attiny4313.h
new file mode 100644
index 0000000..3a2d0b9
--- /dev/null
+++ b/include/mcu/attiny4313.h
@@ -0,0 +1,46 @@
+/* This is specific configuration for ATtiny4313.
+ * This configuration also applies on ATtiny2313A.
+ */
+#include <avr/io.h>
+
+// IO Ports
+#define MCUSUPPORT_IOPORTS
+#define IO_A 0
+#define IO_B 1
+#define IO_D 3
+#define IO_PIN(GROUP)  (* (volatile uint8_t *)(PINB + 0x3*GROUP))
+#define IO_DDR(GROUP)  (* (volatile uint8_t *)(DDRB + 0x3*GROUP))
+#define IO_PORT(GROUP) (* (volatile uint8_t *)(PORTB + 0x3*GROUP))
+#define IO_A0 IO_A, (1 << 0)
+#define IO_A1 IO_A, (1 << 1)
+#define IO_A2 IO_A, (1 << 2)
+#define IO_B0 IO_B, (1 << 0)
+#define IO_B1 IO_B, (1 << 1)
+#define IO_B2 IO_B, (1 << 2)
+#define IO_B3 IO_B, (1 << 3)
+#define IO_B4 IO_B, (1 << 4)
+#define IO_B5 IO_B, (1 << 5)
+#define IO_B6 IO_B, (1 << 6)
+#define IO_B7 IO_B, (1 << 7)
+#define IO_D0 IO_D, (1 << 0)
+#define IO_D1 IO_D, (1 << 1)
+#define IO_D2 IO_D, (1 << 2)
+#define IO_D3 IO_D, (1 << 3)
+#define IO_D4 IO_D, (1 << 4)
+#define IO_D5 IO_D, (1 << 5)
+#define IO_D6 IO_D, (1 << 6)
+#define MCUSUPPORT_PCINT0 8 // TODO this is B
+#define MCUSUPPORT_PCINT1 7 // But this is D
+#define MCUSUPPORT_PCINT2 3 // And this is A, this is not expected in ioport.c
+// SPI USI
+#define MCUSUPPORT_USI
+#define DDR_USI     DDRB
+#define DD_DI       DDB5
+#define DD_DO       DDB6
+#define DD_USCK     DDB7
+#define PORT_USI    PORTB
+#define PORT_DI     PORTB5
+#define PORT_DO     PORTB6
+#define PORT_USCK   PORTB7
+// USART
+#define MCUSUPPORT_USART0
diff --git a/include/mcu/attiny85.Kconfig b/include/mcu/attiny85.Kconfig
new file mode 100644
index 0000000..d58c1d8
--- /dev/null
+++ b/include/mcu/attiny85.Kconfig
@@ -0,0 +1,4 @@
+config ATTINY85
+    bool "attiny85"
+    select MCUSUPPORT_IOPORTS
+    select MCUSUPPORT_PCINT0
diff --git a/include/mcu/attiny85.h b/include/mcu/attiny85.h
new file mode 100644
index 0000000..c342bbb
--- /dev/null
+++ b/include/mcu/attiny85.h
@@ -0,0 +1,28 @@
+/* This is specific configuration for ATtiny85.
+ * This configuration also applies on ATtiny45 and ATtiny25.
+ */
+#include <avr/io.h>
+
+// IO Ports
+#define MCUSUPPORT_IOPORTS
+#define IO_B 0
+#define IO_PIN(GROUP)  PINB
+#define IO_DDR(GROUP)  DDRB
+#define IO_PORT(GROUP) PORTB
+#define IO_B0 IO_B, (1 << 0)
+#define IO_B1 IO_B, (1 << 1)
+#define IO_B2 IO_B, (1 << 2)
+#define IO_B3 IO_B, (1 << 3)
+#define IO_B4 IO_B, (1 << 4)
+#define IO_B5 IO_B, (1 << 5)
+#define MCUSUPPORT_PCINT0 6
+// SPI USI
+#define MCUSUPPORT_USI
+#define DDR_USI     DDRB
+#define DD_DI       DDB0
+#define DD_DO       DDB1
+#define DD_USCK     DDB2
+#define PORT_USI    PORTB
+#define PORT_DI     PORTB0
+#define PORT_DO     PORTB1
+#define PORT_USCK   PORTB2
diff --git a/include/mcu/mcu.h b/include/mcu/mcu.h
new file mode 100644
index 0000000..e1272b9
--- /dev/null
+++ b/include/mcu/mcu.h
@@ -0,0 +1,18 @@
+#define __MCU_ATmega328p__ \
+    ((defined __AVR_ATmega328P__ || defined __AVR_ATmega328__ || \
+        defined __AVR_ATmega1688PA__ || defined __AVR_ATmega168A__ || \
+        defined __AVR_ATmega88PA__ || defined __AVR_ATmega88A__ || \
+        defined __AVR_ATmega48PA__ || defined AVR_ATmega48A__))
+
+#define __MCU_ATmega32U4__ \
+    ((defined __AVR_ATmega32U4__ || defined __AVR_ATmega16U4))
+
+#define __MCU_ATmega8A__ \
+    (defined __AVR_ATmega8A__)
+
+#define __MCU_ATtiny4313__ \
+    ((defined __AVR_ATtiny4313__ || defined __AVR_ATtiny2313A__))
+
+#define __MCU_ATtiny85__ \
+    ((defined __AVR_ATtiny85__ || defined __AVR_ATtiny45__ || \
+        defined __AVR_ATtiny25__))
diff --git a/include/mcu/mcu_def.h b/include/mcu/mcu_def.h
new file mode 100644
index 0000000..472b607
--- /dev/null
+++ b/include/mcu/mcu_def.h
@@ -0,0 +1,21 @@
+#include "mcu.h"
+
+#if __MCU_ATmega328p__
+#include "atmega328p.h"
+#endif
+
+#if __MCU_ATmega32U4__
+#include "atmega32u4.h"
+#endif
+
+#if __MCU_ATmega8A__
+#include "atmega8a.h"
+#endif
+
+#if __MCU_ATtiny4313__
+#include "attiny4313.h"
+#endif
+
+#if __MCU_ATtiny85__
+#include "attiny85.h"
+#endif