diff options
| author | Joshua Drake <joshua.ellis.drake@gmail.com> | 2025-12-06 14:22:21 -0600 |
|---|---|---|
| committer | Joshua Drake <joshua.ellis.drake@gmail.com> | 2025-12-06 14:22:21 -0600 |
| commit | c9335332df86fbc895a8868a34abcc98817d53f0 (patch) | |
| tree | efd0443368c077cbe6215908ae91bf076625e107 /mcc_generated_files/system/utils/atomic.h | |
Diffstat (limited to 'mcc_generated_files/system/utils/atomic.h')
| -rw-r--r-- | mcc_generated_files/system/utils/atomic.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/mcc_generated_files/system/utils/atomic.h b/mcc_generated_files/system/utils/atomic.h new file mode 100644 index 0000000..0878285 --- /dev/null +++ b/mcc_generated_files/system/utils/atomic.h @@ -0,0 +1,87 @@ +/**
+ * CONFIGURATION BITS Generated Atomic Header File
+ *
+ * @file atomic.h
+ *
+ * @defgroup doc_driver_utils_atomic Atomic memory access and critical sections
+ *
+ * @brief This file contains the atomic memory access and critical sections header file for the configuration bits driver.
+ *
+ * @version Driver Version 1.0.0
+*/
+/*
+© [2025] Microchip Technology Inc. and its subsidiaries.
+
+ Subject to your compliance with these terms, you may use Microchip
+ software and any derivatives exclusively with Microchip products.
+ You are responsible for complying with 3rd party license terms
+ applicable to your use of 3rd party software (including open source
+ software) that may accompany Microchip software. SOFTWARE IS ?AS IS.?
+ NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS
+ SOFTWARE, INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT,
+ MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
+ WILL MICROCHIP BE LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE,
+ INCIDENTAL OR CONSEQUENTIAL LOSS, DAMAGE, COST OR EXPENSE OF ANY
+ KIND WHATSOEVER RELATED TO THE SOFTWARE, HOWEVER CAUSED, EVEN IF
+ MICROCHIP HAS BEEN ADVISED OF THE POSSIBILITY OR THE DAMAGES ARE
+ FORESEEABLE. TO THE FULLEST EXTENT ALLOWED BY LAW, MICROCHIP?S
+ TOTAL LIABILITY ON ALL CLAIMS RELATED TO THE SOFTWARE WILL NOT
+ EXCEED AMOUNT OF FEES, IF ANY, YOU PAID DIRECTLY TO MICROCHIP FOR
+ THIS SOFTWARE.
+*/
+
+
+#ifndef ATOMIC_H
+#define ATOMIC_H
+
+/* clang-format off */
+
+#if defined(__GNUC__) || defined (__DOXYGEN__)
+
+/**
+ * @brief Enters critical region. Saves the contents of the status register, including the Global Interrupt Enable bit, so that it can be restored upon leaving the critical region.
+ * Thereafter, clears the Global Interrupt Enable Bit.This macro takes a parameter P that is unused for the GCC compiler,but necessary for code compatibility with the IAR compiler.
+ * The IAR compiler declares a variable with the name of the parameter forholding the SREG value.
+ * Compilation will fail when the variable declared in the macro is not unique within the scope that the critical region is declared within.
+ * @param[in] UNUSED(GCC)/P(IAR) Name of variable storing SREG.
+ */
+
+#define ENTER_CRITICAL(UNUSED) __asm__ __volatile__ ( \
+ "in __tmp_reg__, __SREG__" "\n\t" \
+ "cli" "\n\t" \
+ "push __tmp_reg__" "\n\t" \
+ ::: "memory" \
+ )
+
+/**
+ * @brief Exits a critical region. Restores the contents of the status register, including the Global Interrupt Enable bit, as it was when entering the critical region.
+ * This macro takes a parameter P that is unused for the GCC compiler, but necessary for code compatibility with the IAR compiler.
+ * The IAR compiler uses this parameter as the name of a variable that holds the SREG value.
+ * The parameter must be identical to the parameter used in the corresponding ENTER_CRITICAL().
+ * @param[in] UNUSED(GCC)/P(IAR) Name of variable storing SREG
+ */
+
+#define EXIT_CRITICAL(UNUSED) __asm__ __volatile__ ( \
+ "pop __tmp_reg__" "\n\t" \
+ "out __SREG__, __tmp_reg__" "\n\t" \
+ ::: "memory" \
+ )
+
+#define DISABLE_INTERRUPTS() __asm__ __volatile__ ( "cli" ::: "memory")
+#define ENABLE_INTERRUPTS() __asm__ __volatile__ ( "sei" ::: "memory")
+
+#elif defined(__ICCAVR__)
+
+#define ENTER_CRITICAL(P) unsigned char P = __save_interrupt();__disable_interrupt();
+#define EXIT_CRITICAL(P) __restore_interrupt(P);
+
+#define DISABLE_INTERRUPTS() __disable_interrupt();
+#define ENABLE_INTERRUPTS() __enable_interrupt();
+
+#else
+# error Unsupported compiler.
+#endif
+
+/* clang-format on */
+
+#endif /* ATOMIC_H */
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