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2a709f28fa
* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
158 lines
4.1 KiB
C
158 lines
4.1 KiB
C
/*
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* nvmem framework consumer.
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*
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* Copyright (C) 2015 Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
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* Copyright (C) 2013 Maxime Ripard <maxime.ripard@free-electrons.com>
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#ifndef _LINUX_NVMEM_CONSUMER_H
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#define _LINUX_NVMEM_CONSUMER_H
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struct device;
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struct device_node;
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/* consumer cookie */
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struct nvmem_cell;
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struct nvmem_device;
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struct nvmem_cell_info {
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const char *name;
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unsigned int offset;
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unsigned int bytes;
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unsigned int bit_offset;
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unsigned int nbits;
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};
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#if IS_ENABLED(CONFIG_NVMEM)
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/* Cell based interface */
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struct nvmem_cell *nvmem_cell_get(struct device *dev, const char *name);
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struct nvmem_cell *devm_nvmem_cell_get(struct device *dev, const char *name);
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void nvmem_cell_put(struct nvmem_cell *cell);
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void devm_nvmem_cell_put(struct device *dev, struct nvmem_cell *cell);
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void *nvmem_cell_read(struct nvmem_cell *cell, size_t *len);
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int nvmem_cell_write(struct nvmem_cell *cell, void *buf, size_t len);
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/* direct nvmem device read/write interface */
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struct nvmem_device *nvmem_device_get(struct device *dev, const char *name);
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struct nvmem_device *devm_nvmem_device_get(struct device *dev,
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const char *name);
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void nvmem_device_put(struct nvmem_device *nvmem);
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void devm_nvmem_device_put(struct device *dev, struct nvmem_device *nvmem);
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int nvmem_device_read(struct nvmem_device *nvmem, unsigned int offset,
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size_t bytes, void *buf);
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int nvmem_device_write(struct nvmem_device *nvmem, unsigned int offset,
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size_t bytes, void *buf);
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ssize_t nvmem_device_cell_read(struct nvmem_device *nvmem,
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struct nvmem_cell_info *info, void *buf);
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int nvmem_device_cell_write(struct nvmem_device *nvmem,
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struct nvmem_cell_info *info, void *buf);
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#else
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static inline struct nvmem_cell *nvmem_cell_get(struct device *dev,
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const char *name)
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{
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return ERR_PTR(-ENOSYS);
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}
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static inline struct nvmem_cell *devm_nvmem_cell_get(struct device *dev,
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const char *name)
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{
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return ERR_PTR(-ENOSYS);
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}
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static inline void devm_nvmem_cell_put(struct device *dev,
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struct nvmem_cell *cell)
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{
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}
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static inline void nvmem_cell_put(struct nvmem_cell *cell)
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{
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}
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static inline void *nvmem_cell_read(struct nvmem_cell *cell, size_t *len)
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{
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return ERR_PTR(-ENOSYS);
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}
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static inline int nvmem_cell_write(struct nvmem_cell *cell,
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const char *buf, size_t len)
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{
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return -ENOSYS;
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}
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static inline struct nvmem_device *nvmem_device_get(struct device *dev,
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const char *name)
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{
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return ERR_PTR(-ENOSYS);
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}
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static inline struct nvmem_device *devm_nvmem_device_get(struct device *dev,
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const char *name)
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{
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return ERR_PTR(-ENOSYS);
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}
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static inline void nvmem_device_put(struct nvmem_device *nvmem)
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{
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}
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static inline void devm_nvmem_device_put(struct device *dev,
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struct nvmem_device *nvmem)
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{
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}
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static inline ssize_t nvmem_device_cell_read(struct nvmem_device *nvmem,
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struct nvmem_cell_info *info,
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void *buf)
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{
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return -ENOSYS;
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}
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static inline int nvmem_device_cell_write(struct nvmem_device *nvmem,
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struct nvmem_cell_info *info,
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void *buf)
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{
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return -ENOSYS;
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}
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static inline int nvmem_device_read(struct nvmem_device *nvmem,
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unsigned int offset, size_t bytes,
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void *buf)
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{
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return -ENOSYS;
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}
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static inline int nvmem_device_write(struct nvmem_device *nvmem,
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unsigned int offset, size_t bytes,
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void *buf)
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{
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return -ENOSYS;
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}
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#endif /* CONFIG_NVMEM */
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#if IS_ENABLED(CONFIG_NVMEM) && IS_ENABLED(CONFIG_OF)
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struct nvmem_cell *of_nvmem_cell_get(struct device_node *np,
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const char *name);
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struct nvmem_device *of_nvmem_device_get(struct device_node *np,
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const char *name);
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#else
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static inline struct nvmem_cell *of_nvmem_cell_get(struct device_node *np,
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const char *name)
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{
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return ERR_PTR(-ENOSYS);
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}
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static inline struct nvmem_device *of_nvmem_device_get(struct device_node *np,
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const char *name)
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{
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return ERR_PTR(-ENOSYS);
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}
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#endif /* CONFIG_NVMEM && CONFIG_OF */
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#endif /* ifndef _LINUX_NVMEM_CONSUMER_H */
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