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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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17
src/avr/spi.c
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@ -11,17 +11,22 @@
#include "pgm.h" // READP
#include "sched.h" // sched_shutdown
DECL_ENUMERATION("spi_bus", "spi", 0);
#if CONFIG_MACH_atmega168 || CONFIG_MACH_atmega328 || CONFIG_MACH_atmega328p
static const uint8_t SS = GPIO('B', 2), SCK = GPIO('B', 5);
static const uint8_t MOSI = GPIO('B', 3), MISO = GPIO('B', 4);
static const uint8_t MISO = GPIO('B', 4), MOSI = GPIO('B', 3);
static const uint8_t SCK = GPIO('B', 5), SS = GPIO('B', 2);
DECL_CONSTANT_STR("BUS_PINS_spi", "PB4,PB3,PB5");
#elif CONFIG_MACH_atmega644p || CONFIG_MACH_atmega1284p
static const uint8_t SS = GPIO('B', 4), SCK = GPIO('B', 7);
static const uint8_t MOSI = GPIO('B', 5), MISO = GPIO('B', 6);
static const uint8_t MISO = GPIO('B', 6), MOSI = GPIO('B', 5);
static const uint8_t SCK = GPIO('B', 7), SS = GPIO('B', 4);
DECL_CONSTANT_STR("BUS_PINS_spi", "PB6,PB5,PB7");
#elif CONFIG_MACH_at90usb1286 || CONFIG_MACH_at90usb646 \
|| CONFIG_MACH_atmega32u4 || CONFIG_MACH_atmega1280 \
|| CONFIG_MACH_atmega2560
static const uint8_t SS = GPIO('B', 0), SCK = GPIO('B', 1);
static const uint8_t MOSI = GPIO('B', 2), MISO = GPIO('B', 3);
static const uint8_t MISO = GPIO('B', 3), MOSI = GPIO('B', 2);
static const uint8_t SCK = GPIO('B', 1), SS = GPIO('B', 0);
DECL_CONSTANT_STR("BUS_PINS_spi", "PB3,PB2,PB1");
#endif
static void