541fded753
also, the whole gpio header file is now a big doxygen group, structuring the convenience functions and the register/value definitions
24 lines
563 B
C
24 lines
563 B
C
#include <libopencm3/efm32/tinygecko/gpio.h>
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void gpio_set_mode(u32 gpioport, u8 mode, u16 gpios)
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{
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u8 i;
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u32 modemaskl = 0, modesetl = 0, modemaskh = 0, modeseth = 0;
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for (i = 0; i < 8; ++i)
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{
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if (gpios & (1<<i)) {
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modemaskl |= GPIO_MODE_MASK << (i*4);
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modesetl |= mode << (i*4);
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}
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if (gpios & (0x100<<i)) {
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modemaskh |= GPIO_MODE_MASK << (i*4);
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modeseth |= mode << (i*4);
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}
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}
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GPIO_Px_MODEL(gpioport) &= ~modemaskl;
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GPIO_Px_MODEL(gpioport) |= modesetl;
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GPIO_Px_MODEH(gpioport) &= ~modemaskh;
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GPIO_Px_MODEH(gpioport) |= modeseth;
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}
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