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-rw-r--r--tmk_core/common/wait.h125
1 files changed, 17 insertions, 108 deletions
diff --git a/tmk_core/common/wait.h b/tmk_core/common/wait.h
index 28224fe3aa..cf7180fb07 100644
--- a/tmk_core/common/wait.h
+++ b/tmk_core/common/wait.h
@@ -1,3 +1,18 @@
+/* Copyright 2021 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
#pragma once
#include <inttypes.h>
@@ -6,114 +21,8 @@
extern "C" {
#endif
-#if defined(__ARMEL__) || defined(__ARMEB__)
-# ifndef __OPTIMIZE__
-# pragma message "Compiler optimizations disabled; wait_cpuclock() won't work as designed"
-# endif
-
-# define wait_cpuclock(x) wait_cpuclock_allnop(x)
-
-# define CLOCK_DELAY_NOP8 "nop\n\t nop\n\t nop\n\t nop\n\t nop\n\t nop\n\t nop\n\t nop\n\t"
-
-__attribute__((always_inline)) static inline void wait_cpuclock_allnop(unsigned int n) { /* n: 1..135 */
- /* The argument n must be a constant expression.
- * That way, compiler optimization will remove unnecessary code. */
- if (n < 1) {
- return;
- }
- if (n > 8) {
- unsigned int n8 = n / 8;
- n = n - n8 * 8;
- switch (n8) {
- case 16:
- asm volatile(CLOCK_DELAY_NOP8::: "memory");
- case 15:
- asm volatile(CLOCK_DELAY_NOP8::: "memory");
- case 14:
- asm volatile(CLOCK_DELAY_NOP8::: "memory");
- case 13:
- asm volatile(CLOCK_DELAY_NOP8::: "memory");
- case 12:
- asm volatile(CLOCK_DELAY_NOP8::: "memory");
- case 11:
- asm volatile(CLOCK_DELAY_NOP8::: "memory");
- case 10:
- asm volatile(CLOCK_DELAY_NOP8::: "memory");
- case 9:
- asm volatile(CLOCK_DELAY_NOP8::: "memory");
- case 8:
- asm volatile(CLOCK_DELAY_NOP8::: "memory");
- case 7:
- asm volatile(CLOCK_DELAY_NOP8::: "memory");
- case 6:
- asm volatile(CLOCK_DELAY_NOP8::: "memory");
- case 5:
- asm volatile(CLOCK_DELAY_NOP8::: "memory");
- case 4:
- asm volatile(CLOCK_DELAY_NOP8::: "memory");
- case 3:
- asm volatile(CLOCK_DELAY_NOP8::: "memory");
- case 2:
- asm volatile(CLOCK_DELAY_NOP8::: "memory");
- case 1:
- asm volatile(CLOCK_DELAY_NOP8::: "memory");
- case 0:
- break;
- }
- }
- switch (n) {
- case 8:
- asm volatile("nop" ::: "memory");
- case 7:
- asm volatile("nop" ::: "memory");
- case 6:
- asm volatile("nop" ::: "memory");
- case 5:
- asm volatile("nop" ::: "memory");
- case 4:
- asm volatile("nop" ::: "memory");
- case 3:
- asm volatile("nop" ::: "memory");
- case 2:
- asm volatile("nop" ::: "memory");
- case 1:
- asm volatile("nop" ::: "memory");
- case 0:
- break;
- }
-}
-#endif
-
-#if defined(__AVR__)
-# include <util/delay.h>
-# define wait_ms(ms) _delay_ms(ms)
-# define wait_us(us) _delay_us(us)
-# define wait_cpuclock(x) __builtin_avr_delay_cycles(x)
-#elif defined PROTOCOL_CHIBIOS
-# include <ch.h>
-# define wait_ms(ms) \
- do { \
- if (ms != 0) { \
- chThdSleepMilliseconds(ms); \
- } else { \
- chThdSleepMicroseconds(1); \
- } \
- } while (0)
-# define wait_us(us) \
- do { \
- if (us != 0) { \
- chThdSleepMicroseconds(us); \
- } else { \
- chThdSleepMicroseconds(1); \
- } \
- } while (0)
-#elif defined PROTOCOL_ARM_ATSAM
-# include "clks.h"
-# define wait_ms(ms) CLK_delay_ms(ms)
-# define wait_us(us) CLK_delay_us(us)
-#else // Unit tests
-void wait_ms(uint32_t ms);
-# define wait_us(us) wait_ms(us / 1000)
+#if __has_include_next("_wait.h")
+# include_next "_wait.h" /* Include the platforms _wait.h */
#endif
#ifdef __cplusplus