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#ifndef _PINS_H_
#define _PINS_H_
/* st seem to change these with every chip revision */
#define MAP_AF(a) do { \
gpio_set_mode( a ## _PORT, GPIO_MODE_OUTPUT_50_MHZ, GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, a ); \
} while (0)
/* STM32F1 doesn't have AF pull up, but also doesn't disconnect af inputs so just use regular pull up */
#define MAP_AF_PU(a) do { \
gpio_set_mode( a ## _PORT, GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, a); \
gpio_set( a ## _PORT, a); \
} while (0)
#define MAP_AF_OD(a) do { \
gpio_set_mode( a ## _PORT, GPIO_MODE_OUTPUT_50_MHZ, GPIO_CNF_OUTPUT_ALTFN_OPENDRAIN, a ); \
} while (0)
#define MAP_OUTPUT_PP(a) do { \
gpio_set_mode( a ## _PORT, GPIO_MODE_OUTPUT_50_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, a ); \
} while (0)
#define MAP_OUTPUT_OD(a) do { \
gpio_set_mode( a ## _PORT, GPIO_MODE_OUTPUT_50_MHZ, GPIO_CNF_OUTPUT_OPENDRAIN, a ); \
} while (0)
#define MAP_OUTPUT_OD_SLOW(a) do { \
gpio_set_mode( a ## _PORT, GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_OPENDRAIN, a ); \
} while (0)
/* STM32F1 madly uses the output register to drive the other end of the resistor, so pull up */
/* requires us to write a 1 there */
#define MAP_INPUT_PU(a) do { \
gpio_set_mode( a ## _PORT, GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, a); \
gpio_set( a ## _PORT, a); \
} while (0)
#define MAP_INPUT(a) do { \
gpio_set_mode( a ## _PORT, GPIO_MODE_INPUT, GPIO_CNF_INPUT_FLOAT, a); \
} while (0)
#define CLEAR(a) gpio_clear( a ## _PORT, a)
#define SET(a) gpio_set( a ## _PORT, a)
#define GET(a) gpio_get( a ## _PORT, a)
#endif
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