1 files changed, 38 insertions, 0 deletions

diff --git a/quantum/quantum.h b/quantum/quantum.h
index dd2a6dd53..36a983d57 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 "gpio.h"
 #include "atomic_util.h"
@@ -194,6 +195,42 @@ extern layer_state_t layer_state;
 #    include "wpm.h"
 #endif
 
+#ifdef USBPD_ENABLE
+#    include "usbpd.h"
+#endif
+
+// Function substitutions to ease GPIO manipulation
+#if defined(__AVR__)
+
+/*   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(__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
 #define SEND_STRING(string) send_string_P(PSTR(string))
 #define SEND_STRING_DELAY(string, interval) send_string_with_delay_P(PSTR(string), interval)
 
@@ -201,6 +238,7 @@ extern layer_state_t layer_state;
 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 \