40 lines
1.3 KiB
C++
40 lines
1.3 KiB
C++
#pragma once
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#include <functional>
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#include <map>
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#include <memory>
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#include <mutex>
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#include <optional>
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#include <queue>
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#include <media/cam_req_mgr.h>
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std::optional<int32_t> device_acquire(int fd, int32_t session_handle, void *data, uint32_t num_resources=1);
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int device_config(int fd, int32_t session_handle, int32_t dev_handle, uint64_t packet_handle);
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int device_control(int fd, int op_code, int session_handle, int dev_handle);
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int do_cam_control(int fd, int op_code, void *handle, int size);
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void *alloc_w_mmu_hdl(int video0_fd, int len, uint32_t *handle, int align = 8, int flags = CAM_MEM_FLAG_KMD_ACCESS | CAM_MEM_FLAG_UMD_ACCESS | CAM_MEM_FLAG_CMD_BUF_TYPE,
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int mmu_hdl = 0, int mmu_hdl2 = 0);
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void release(int video0_fd, uint32_t handle);
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class MemoryManager {
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public:
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void init(int _video0_fd) { video0_fd = _video0_fd; }
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~MemoryManager();
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template <class T>
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auto alloc(int len, uint32_t *handle) {
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return std::unique_ptr<T, std::function<void(void *)>>((T*)alloc_buf(len, handle), [this](void *ptr) { this->free(ptr); });
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}
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private:
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void *alloc_buf(int len, uint32_t *handle);
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void free(void *ptr);
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std::mutex lock;
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std::map<void *, uint32_t> handle_lookup;
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std::map<void *, int> size_lookup;
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std::map<int, std::queue<void *> > cached_allocations;
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int video0_fd;
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};
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