forked from Qortal/Brooklyn
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.
128 lines
4.2 KiB
C
128 lines
4.2 KiB
C
/*
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* FPGA Framework
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*
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* Copyright (C) 2013-2015 Altera Corporation
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/mutex.h>
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#include <linux/platform_device.h>
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#ifndef _LINUX_FPGA_MGR_H
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#define _LINUX_FPGA_MGR_H
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struct fpga_manager;
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/**
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* enum fpga_mgr_states - fpga framework states
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* @FPGA_MGR_STATE_UNKNOWN: can't determine state
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* @FPGA_MGR_STATE_POWER_OFF: FPGA power is off
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* @FPGA_MGR_STATE_POWER_UP: FPGA reports power is up
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* @FPGA_MGR_STATE_RESET: FPGA in reset state
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* @FPGA_MGR_STATE_FIRMWARE_REQ: firmware request in progress
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* @FPGA_MGR_STATE_FIRMWARE_REQ_ERR: firmware request failed
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* @FPGA_MGR_STATE_WRITE_INIT: preparing FPGA for programming
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* @FPGA_MGR_STATE_WRITE_INIT_ERR: Error during WRITE_INIT stage
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* @FPGA_MGR_STATE_WRITE: writing image to FPGA
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* @FPGA_MGR_STATE_WRITE_ERR: Error while writing FPGA
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* @FPGA_MGR_STATE_WRITE_COMPLETE: Doing post programming steps
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* @FPGA_MGR_STATE_WRITE_COMPLETE_ERR: Error during WRITE_COMPLETE
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* @FPGA_MGR_STATE_OPERATING: FPGA is programmed and operating
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*/
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enum fpga_mgr_states {
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/* default FPGA states */
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FPGA_MGR_STATE_UNKNOWN,
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FPGA_MGR_STATE_POWER_OFF,
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FPGA_MGR_STATE_POWER_UP,
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FPGA_MGR_STATE_RESET,
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/* getting an image for loading */
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FPGA_MGR_STATE_FIRMWARE_REQ,
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FPGA_MGR_STATE_FIRMWARE_REQ_ERR,
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/* write sequence: init, write, complete */
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FPGA_MGR_STATE_WRITE_INIT,
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FPGA_MGR_STATE_WRITE_INIT_ERR,
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FPGA_MGR_STATE_WRITE,
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FPGA_MGR_STATE_WRITE_ERR,
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FPGA_MGR_STATE_WRITE_COMPLETE,
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FPGA_MGR_STATE_WRITE_COMPLETE_ERR,
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/* fpga is programmed and operating */
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FPGA_MGR_STATE_OPERATING,
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};
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/*
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* FPGA Manager flags
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* FPGA_MGR_PARTIAL_RECONFIG: do partial reconfiguration if supported
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*/
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#define FPGA_MGR_PARTIAL_RECONFIG BIT(0)
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/**
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* struct fpga_manager_ops - ops for low level fpga manager drivers
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* @state: returns an enum value of the FPGA's state
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* @write_init: prepare the FPGA to receive confuration data
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* @write: write count bytes of configuration data to the FPGA
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* @write_complete: set FPGA to operating state after writing is done
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* @fpga_remove: optional: Set FPGA into a specific state during driver remove
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*
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* fpga_manager_ops are the low level functions implemented by a specific
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* fpga manager driver. The optional ones are tested for NULL before being
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* called, so leaving them out is fine.
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*/
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struct fpga_manager_ops {
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enum fpga_mgr_states (*state)(struct fpga_manager *mgr);
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int (*write_init)(struct fpga_manager *mgr, u32 flags,
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const char *buf, size_t count);
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int (*write)(struct fpga_manager *mgr, const char *buf, size_t count);
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int (*write_complete)(struct fpga_manager *mgr, u32 flags);
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void (*fpga_remove)(struct fpga_manager *mgr);
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};
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/**
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* struct fpga_manager - fpga manager structure
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* @name: name of low level fpga manager
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* @dev: fpga manager device
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* @ref_mutex: only allows one reference to fpga manager
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* @state: state of fpga manager
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* @mops: pointer to struct of fpga manager ops
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* @priv: low level driver private date
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*/
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struct fpga_manager {
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const char *name;
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struct device dev;
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struct mutex ref_mutex;
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enum fpga_mgr_states state;
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const struct fpga_manager_ops *mops;
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void *priv;
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};
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#define to_fpga_manager(d) container_of(d, struct fpga_manager, dev)
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int fpga_mgr_buf_load(struct fpga_manager *mgr, u32 flags,
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const char *buf, size_t count);
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int fpga_mgr_firmware_load(struct fpga_manager *mgr, u32 flags,
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const char *image_name);
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struct fpga_manager *of_fpga_mgr_get(struct device_node *node);
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void fpga_mgr_put(struct fpga_manager *mgr);
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int fpga_mgr_register(struct device *dev, const char *name,
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const struct fpga_manager_ops *mops, void *priv);
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void fpga_mgr_unregister(struct device *dev);
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#endif /*_LINUX_FPGA_MGR_H */
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