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- #ifndef ZEPHYR_INCLUDE_SYS_DEVICE_MMIO_H
- #define ZEPHYR_INCLUDE_SYS_DEVICE_MMIO_H
- #include <toolchain/common.h>
- #include <linker/sections.h>
- #if defined(CONFIG_MMU) || defined(CONFIG_PCIE)
- #define DEVICE_MMIO_IS_IN_RAM
- #endif
- #ifndef _ASMLANGUAGE
- #include <stdint.h>
- #include <stddef.h>
- #include <sys/mem_manage.h>
- #include <sys/sys_io.h>
- #ifdef DEVICE_MMIO_IS_IN_RAM
- struct z_device_mmio_rom {
-
- uintptr_t phys_addr;
-
- size_t size;
- };
- #define Z_DEVICE_MMIO_ROM_INITIALIZER(node_id) \
- { \
- .phys_addr = DT_REG_ADDR(node_id), \
- .size = DT_REG_SIZE(node_id) \
- }
- __boot_func
- static inline void device_map(mm_reg_t *virt_addr, uintptr_t phys_addr,
- size_t size, uint32_t flags)
- {
- #ifdef CONFIG_MMU
-
- z_phys_map((uint8_t **)virt_addr, phys_addr, size,
- flags | K_MEM_PERM_RW);
- #else
- ARG_UNUSED(size);
- ARG_UNUSED(flags);
- *virt_addr = phys_addr;
- #endif
- }
- #else
- struct z_device_mmio_rom {
-
- mm_reg_t addr;
- };
- #define Z_DEVICE_MMIO_ROM_INITIALIZER(node_id) \
- { \
- .addr = DT_REG_ADDR(node_id) \
- }
- #endif
- #endif
- #ifdef DEVICE_MMIO_IS_IN_RAM
- #define DEVICE_MMIO_RAM mm_reg_t _mmio
- #else
- #define DEVICE_MMIO_RAM
- #endif
- #ifdef DEVICE_MMIO_IS_IN_RAM
- #define DEVICE_MMIO_RAM_PTR(device) (mm_reg_t *)((device)->data)
- #endif
- #define DEVICE_MMIO_ROM struct z_device_mmio_rom _mmio
- #define DEVICE_MMIO_ROM_PTR(dev) \
- ((struct z_device_mmio_rom *)((dev)->config))
- #define DEVICE_MMIO_ROM_INIT(node_id) \
- ._mmio = Z_DEVICE_MMIO_ROM_INITIALIZER(node_id)
- #ifdef DEVICE_MMIO_IS_IN_RAM
- #define DEVICE_MMIO_MAP(dev, flags) \
- device_map(DEVICE_MMIO_RAM_PTR(dev), \
- DEVICE_MMIO_ROM_PTR(dev)->phys_addr, \
- DEVICE_MMIO_ROM_PTR(dev)->size, \
- (flags))
- #else
- #define DEVICE_MMIO_MAP(dev, flags) do { } while (0)
- #endif
- #ifdef DEVICE_MMIO_IS_IN_RAM
- #define DEVICE_MMIO_GET(dev) (*DEVICE_MMIO_RAM_PTR(dev))
- #else
- #define DEVICE_MMIO_GET(dev) (DEVICE_MMIO_ROM_PTR(dev)->addr)
- #endif
- #ifdef DEVICE_MMIO_IS_IN_RAM
- #define DEVICE_MMIO_NAMED_RAM(name) mm_reg_t name
- #else
- #define DEVICE_MMIO_NAMED_RAM(name)
- #endif
- #ifdef DEVICE_MMIO_IS_IN_RAM
- #define DEVICE_MMIO_NAMED_RAM_PTR(dev, name) \
- (&(DEV_DATA(dev)->name))
- #endif
- #define DEVICE_MMIO_NAMED_ROM(name) struct z_device_mmio_rom name
- #define DEVICE_MMIO_NAMED_ROM_PTR(dev, name) (&(DEV_CFG(dev)->name))
- #define DEVICE_MMIO_NAMED_ROM_INIT(name, node_id) \
- .name = Z_DEVICE_MMIO_ROM_INITIALIZER(node_id)
- #ifdef DEVICE_MMIO_IS_IN_RAM
- #define DEVICE_MMIO_NAMED_MAP(dev, name, flags) \
- device_map(DEVICE_MMIO_NAMED_RAM_PTR((dev), name), \
- (DEVICE_MMIO_NAMED_ROM_PTR((dev), name)->phys_addr), \
- (DEVICE_MMIO_NAMED_ROM_PTR((dev), name)->size), \
- (flags))
- #else
- #define DEVICE_MMIO_NAMED_MAP(dev, name, flags) do { } while (0)
- #endif
- #ifdef DEVICE_MMIO_IS_IN_RAM
- #define DEVICE_MMIO_NAMED_GET(dev, name) \
- (*DEVICE_MMIO_NAMED_RAM_PTR((dev), name))
- #else
- #define DEVICE_MMIO_NAMED_GET(dev, name) \
- ((DEVICE_MMIO_NAMED_ROM_PTR((dev), name))->addr)
- #endif
- #define Z_TOPLEVEL_ROM_NAME(name) _CONCAT(z_mmio_rom__, name)
- #define Z_TOPLEVEL_RAM_NAME(name) _CONCAT(z_mmio_ram__, name)
- #ifdef DEVICE_MMIO_IS_IN_RAM
- #define DEVICE_MMIO_TOPLEVEL(name, node_id) \
- __pinned_bss \
- mm_reg_t Z_TOPLEVEL_RAM_NAME(name); \
- __pinned_rodata \
- const struct z_device_mmio_rom Z_TOPLEVEL_ROM_NAME(name) = \
- Z_DEVICE_MMIO_ROM_INITIALIZER(node_id)
- #else
- #define DEVICE_MMIO_TOPLEVEL(name, node_id) \
- __pinned_rodata \
- const struct z_device_mmio_rom Z_TOPLEVEL_ROM_NAME(name) = \
- Z_DEVICE_MMIO_ROM_INITIALIZER(node_id)
- #endif
- #ifdef DEVICE_MMIO_IS_IN_RAM
- #define DEVICE_MMIO_TOPLEVEL_DECLARE(name) \
- extern mm_reg_t Z_TOPLEVEL_RAM_NAME(name); \
- extern const struct z_device_mmio_rom Z_TOPLEVEL_ROM_NAME(name)
- #else
- #define DEVICE_MMIO_TOPLEVEL_DECLARE(name) \
- extern const struct z_device_mmio_rom Z_TOPLEVEL_ROM_NAME(name)
- #endif
- #ifdef DEVICE_MMIO_IS_IN_RAM
- #define DEVICE_MMIO_TOPLEVEL_STATIC(name, node_id) \
- __pinned_bss \
- static mm_reg_t Z_TOPLEVEL_RAM_NAME(name); \
- __pinned_rodata \
- static const struct z_device_mmio_rom Z_TOPLEVEL_ROM_NAME(name) = \
- Z_DEVICE_MMIO_ROM_INITIALIZER(node_id)
- #else
- #define DEVICE_MMIO_TOPLEVEL_STATIC(name, node_id) \
- __pinned_rodata \
- static const struct z_device_mmio_rom Z_TOPLEVEL_ROM_NAME(name) = \
- Z_DEVICE_MMIO_ROM_INITIALIZER(node_id)
- #endif
- #ifdef DEVICE_MMIO_IS_IN_RAM
- #define DEVICE_MMIO_TOPLEVEL_RAM_PTR(name) &Z_TOPLEVEL_RAM_NAME(name)
- #endif
- #define DEVICE_MMIO_TOPLEVEL_ROM_PTR(name) &Z_TOPLEVEL_ROM_NAME(name)
- #ifdef DEVICE_MMIO_IS_IN_RAM
- #define DEVICE_MMIO_TOPLEVEL_MAP(name, flags) \
- device_map(&Z_TOPLEVEL_RAM_NAME(name), \
- Z_TOPLEVEL_ROM_NAME(name).phys_addr, \
- Z_TOPLEVEL_ROM_NAME(name).size, flags)
- #else
- #define DEVICE_MMIO_TOPLEVEL_MAP(name, flags) do { } while (0)
- #endif
- #ifdef DEVICE_MMIO_IS_IN_RAM
- #define DEVICE_MMIO_TOPLEVEL_GET(name) \
- ((mm_reg_t)Z_TOPLEVEL_RAM_NAME(name))
- #else
- #define DEVICE_MMIO_TOPLEVEL_GET(name) \
- ((mm_reg_t)Z_TOPLEVEL_ROM_NAME(name).addr)
- #endif
- #endif
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