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-rw-r--r--quantum/quantum.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/quantum/quantum.h b/quantum/quantum.h
index f4df5bf155..d234e6ea0d 100644
--- a/quantum/quantum.h
+++ b/quantum/quantum.h
@@ -53,6 +53,7 @@
#include "eeconfig.h"
#include "bootloader.h"
#include "timer.h"
+#include "sync_timer.h"
#include "config_common.h"
#include "led.h"
#include "action_util.h"
@@ -209,6 +210,13 @@ typedef uint8_t pin_t;
# define togglePin(pin) (PORTx_ADDRESS(pin) ^= _BV((pin)&0xF))
+/* The AVR series GPIOs have a one clock read delay for changes in the digital input signal.
+ * But here's more margin to make it two clocks. */
+# if !defined(GPIO_INPUT_PIN_DELAY)
+# define GPIO_INPUT_PIN_DELAY 2
+# endif
+# define waitInputPinDelay() wait_cpuclock(GPIO_INPUT_PIN_DELAY)
+
#elif defined(PROTOCOL_CHIBIOS)
typedef ioline_t pin_t;
@@ -224,6 +232,28 @@ typedef ioline_t pin_t;
# define readPin(pin) palReadLine(pin)
# define togglePin(pin) palToggleLine(pin)
+
+#endif
+
+#if defined(__ARMEL__) || defined(__ARMEB__)
+/* For GPIOs on ARM-based MCUs, the input pins are sampled by the clock of the bus
+ * to which the GPIO is connected.
+ * The connected buses differ depending on the various series of MCUs.
+ * And since the instruction execution clock of the CPU and the bus clock of GPIO are different,
+ * there is a delay of several clocks to read the change of the input signal.
+ *
+ * Define this delay with the GPIO_INPUT_PIN_DELAY macro.
+ * If the GPIO_INPUT_PIN_DELAY macro is not defined, the following default values will be used.
+ * (A fairly large value of 0.25 microseconds is set.)
+ */
+# if !defined(GPIO_INPUT_PIN_DELAY)
+# if defined(STM32_SYSCLK)
+# define GPIO_INPUT_PIN_DELAY (STM32_SYSCLK/1000000L / 4)
+# elif defined(KINETIS_SYSCLK_FREQUENCY)
+# define GPIO_INPUT_PIN_DELAY (KINETIS_SYSCLK_FREQUENCY/1000000L / 4)
+# endif
+# endif
+# define waitInputPinDelay() wait_cpuclock(GPIO_INPUT_PIN_DELAY)
#endif
// Atomic macro to help make GPIO and other controls atomic.
@@ -288,6 +318,7 @@ static __inline__ void __interrupt_enable__(const uint8_t *__s) {
extern const uint8_t ascii_to_keycode_lut[128];
extern const uint8_t ascii_to_shift_lut[16];
extern const uint8_t ascii_to_altgr_lut[16];
+extern const uint8_t ascii_to_dead_lut[16];
// clang-format off
#define KCLUT_ENTRY(a, b, c, d, e, f, g, h) \
( ((a) ? 1 : 0) << 0 \