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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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5
src/avr/i2c.c
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@@ -12,14 +12,19 @@
#include "internal.h" // GPIO
#include "sched.h" // sched_shutdown
DECL_ENUMERATION("i2c_bus", "twi", 0);
#if CONFIG_MACH_atmega168 || CONFIG_MACH_atmega328 || CONFIG_MACH_atmega328p
static const uint8_t SCL = GPIO('C', 5), SDA = GPIO('C', 4);
DECL_CONSTANT_STR("BUS_PINS_twi", "PC5,PC4");
#elif CONFIG_MACH_atmega644p || CONFIG_MACH_atmega1284p
static const uint8_t SCL = GPIO('C', 0), SDA = GPIO('C', 1);
DECL_CONSTANT_STR("BUS_PINS_twi", "PC0,PC1");
#elif CONFIG_MACH_at90usb1286 || CONFIG_MACH_at90usb646 \
|| CONFIG_MACH_atmega32u4 || CONFIG_MACH_atmega1280 \
|| CONFIG_MACH_atmega2560
static const uint8_t SCL = GPIO('D', 0), SDA = GPIO('D', 1);
DECL_CONSTANT_STR("BUS_PINS_twi", "PD0,PD1");
#endif
static void