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avr: Use enumerations for buses and reserve pins

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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2019-03-31 22:01:41 -04:00
parent 1ab02e5225
commit 7765653d83
4 changed files with 33 additions and 7 deletions
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16
src/avr/serial.c
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@@ -7,8 +7,24 @@
#include <avr/interrupt.h> // USART_RX_vect
#include "autoconf.h" // CONFIG_SERIAL_BAUD
#include "board/serial_irq.h" // serial_rx_byte
#include "command.h" // DECL_CONSTANT_STR
#include "sched.h" // DECL_INIT
// Reserve serial pins
#if CONFIG_SERIAL_PORT == 0
#if CONFIG_MACH_atmega1280 || CONFIG_MACH_atmega2560
DECL_CONSTANT_STR("RESERVE_PINS_serial", "PE0,PE1");
#else
DECL_CONSTANT_STR("RESERVE_PINS_serial", "PD0,PD1");
#endif
#elif CONFIG_SERIAL_PORT == 1
DECL_CONSTANT_STR("RESERVE_PINS_serial", "PD2,PD3");
#elif CONFIG_SERIAL_PORT == 2
DECL_CONSTANT_STR("RESERVE_PINS_serial", "PH0,PH1");
#else
DECL_CONSTANT_STR("RESERVE_PINS_serial", "PJ0,PJ1");
#endif
// Helper macros for defining serial port aliases
#define AVR_SERIAL_REG1(prefix, id, suffix) prefix ## id ## suffix
#define AVR_SERIAL_REG(prefix, id, suffix) AVR_SERIAL_REG1(prefix, id, suffix)