LCOV - code coverage report
Current view: top level - zephyr/arch/arm/cortex_a_r - sys_io.h Hit Total Coverage
Test: new.info Lines: 0 8 0.0 %
Date: 2024-12-22 00:14:23

          Line data    Source code
       1           0 : /*
       2             :  * Copyright (c) 2015, Wind River Systems, Inc.
       3             :  * Copyright (c) 2017, Oticon A/S
       4             :  *
       5             :  * SPDX-License-Identifier: Apache-2.0
       6             :  */
       7             : 
       8             : /* "Arch" bit manipulation functions in non-arch-specific C code (uses some
       9             :  * gcc builtins)
      10             :  */
      11             : 
      12             : #ifndef ZEPHYR_INCLUDE_ARCH_ARM_CORTEX_A_R_SYS_IO_H_
      13             : #define ZEPHYR_INCLUDE_ARCH_ARM_CORTEX_A_R_SYS_IO_H_
      14             : 
      15             : #ifndef _ASMLANGUAGE
      16             : 
      17             : #include <zephyr/types.h>
      18             : #include <zephyr/sys/sys_io.h>
      19             : #include <zephyr/sys/barrier.h>
      20             : 
      21             : #ifdef __cplusplus
      22             : extern "C" {
      23             : #endif
      24             : 
      25             : /* Memory mapped registers I/O functions */
      26             : 
      27           0 : static ALWAYS_INLINE uint8_t sys_read8(mem_addr_t addr)
      28             : {
      29             :         uint8_t val;
      30             : 
      31             :         __asm__ volatile("ldrb %0, [%1]" : "=r" (val) : "r" (addr));
      32             : 
      33             :         barrier_dmem_fence_full();
      34             :         return val;
      35             : }
      36             : 
      37           0 : static ALWAYS_INLINE void sys_write8(uint8_t data, mem_addr_t addr)
      38             : {
      39             :         barrier_dmem_fence_full();
      40             :         __asm__ volatile("strb %0, [%1]" : : "r" (data), "r" (addr));
      41             : }
      42             : 
      43           0 : static ALWAYS_INLINE uint16_t sys_read16(mem_addr_t addr)
      44             : {
      45             :         uint16_t val;
      46             : 
      47             :         __asm__ volatile("ldrh %0, [%1]" : "=r" (val) : "r" (addr));
      48             : 
      49             :         barrier_dmem_fence_full();
      50             :         return val;
      51             : }
      52             : 
      53           0 : static ALWAYS_INLINE void sys_write16(uint16_t data, mem_addr_t addr)
      54             : {
      55             :         barrier_dmem_fence_full();
      56             :         __asm__ volatile("strh %0, [%1]" : : "r" (data), "r" (addr));
      57             : }
      58             : 
      59           0 : static ALWAYS_INLINE uint32_t sys_read32(mem_addr_t addr)
      60             : {
      61             :         uint32_t val;
      62             : 
      63             :         __asm__ volatile("ldr %0, [%1]" : "=r" (val) : "r" (addr));
      64             : 
      65             :         barrier_dmem_fence_full();
      66             :         return val;
      67             : }
      68             : 
      69           0 : static ALWAYS_INLINE void sys_write32(uint32_t data, mem_addr_t addr)
      70             : {
      71             :         barrier_dmem_fence_full();
      72             :         __asm__ volatile("str %0, [%1]" : : "r" (data), "r" (addr));
      73             : }
      74             : 
      75           0 : static ALWAYS_INLINE uint64_t sys_read64(mem_addr_t addr)
      76             : {
      77             :         uint64_t val;
      78             : 
      79             :         __asm__ volatile("ldrd %Q0, %R0, [%1]" : "=r" (val) : "r" (addr));
      80             : 
      81             :         barrier_dmem_fence_full();
      82             :         return val;
      83             : }
      84             : 
      85             : #ifdef __cplusplus
      86             : }
      87             : #endif
      88             : 
      89             : #endif /* _ASMLANGUAGE */
      90             : 
      91             : #endif /* ZEPHYR_INCLUDE_ARCH_ARM_CORTEX_A_R_SYS_IO_H_ */

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