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Add open-drain GPIO support. (#15282)

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* Add open-drain GPIO support.

* `qmk format-c`

* Wording.

* Remove port GPIO implementations as the only board that uses it has its own internal defs anyway. Will wait for first-class handling of ports in core before reimplementing.
This commit is contained in:
Nick Brassel 2021-12-27 11:52:10 +11:00 • committed by GitHub
parent f491e6b138
commit 6e40dfa022
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 30 additions and 47 deletions
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12
platforms/arm_atsam/gpio.h
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@ -22,9 +22,9 @@
typedef uint8_t pin_t;
#define SAMD_PORT(pin) ((pin & 0x20) >> 5)
#define SAMD_PIN(pin) (pin & 0x1f)
#define SAMD_PIN_MASK(pin) (1 << (pin & 0x1f))
#define SAMD_PORT(pin) (((pin)&0x20) >> 5)
#define SAMD_PIN(pin) ((pin)&0x1f)
#define SAMD_PIN_MASK(pin) (1 << ((pin)&0x1f))
#define setPinInput(pin) \
do { \
@ -48,12 +48,16 @@ typedef uint8_t pin_t;
PORT->Group[SAMD_PORT(pin)].PINCFG[SAMD_PIN(pin)].bit.PULLEN = 1; \
} while (0)
#define setPinOutput(pin) \
#define setPinOutputPushPull(pin) \
do { \
PORT->Group[SAMD_PORT(pin)].DIRSET.reg = SAMD_PIN_MASK(pin); \
PORT->Group[SAMD_PORT(pin)].OUTCLR.reg = SAMD_PIN_MASK(pin); \
} while (0)
#define setPinOutputOpenDrain(pin) _Static_assert(0, "arm_atsam platform does not implement an open-drain output")
#define setPinOutput(pin) setPinOutputPushPull(pin)
#define writePinHigh(pin) \
do { \
PORT->Group[SAMD_PORT(pin)].OUTSET.reg = SAMD_PIN_MASK(pin); \