FPGA Bridge¶
API to implement a new FPGA bridge¶
struct fpga_bridge
- The FPGA Bridge structurestruct fpga_bridge_ops
- Low level Bridge driver opsfpga_bridge_register()
- Create and register a bridgefpga_bridge_unregister()
- Unregister a bridge
-
struct fpga_bridge¶
FPGA bridge structure
Definition:
struct fpga_bridge {
const char *name;
struct device dev;
struct mutex mutex;
const struct fpga_bridge_ops *br_ops;
struct fpga_image_info *info;
struct list_head node;
void *priv;
};
Members
name
name of low level FPGA bridge
dev
FPGA bridge device
mutex
enforces exclusive reference to bridge
br_ops
pointer to struct of FPGA bridge ops
info
fpga image specific information
node
FPGA bridge list node
priv
low level driver private date
-
struct fpga_bridge_ops¶
ops for low level FPGA bridge drivers
Definition:
struct fpga_bridge_ops {
int (*enable_show)(struct fpga_bridge *bridge);
int (*enable_set)(struct fpga_bridge *bridge, bool enable);
void (*fpga_bridge_remove)(struct fpga_bridge *bridge);
const struct attribute_group **groups;
};
Members
enable_show
returns the FPGA bridge's status
enable_set
set an FPGA bridge as enabled or disabled
fpga_bridge_remove
set FPGA into a specific state during driver remove
groups
optional attribute groups.
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struct fpga_bridge *fpga_bridge_register(struct device *parent, const char *name, const struct fpga_bridge_ops *br_ops, void *priv)¶
create and register an FPGA Bridge device
Parameters
struct device *parent
FPGA bridge device from pdev
const char *name
FPGA bridge name
const struct fpga_bridge_ops *br_ops
pointer to structure of fpga bridge ops
void *priv
FPGA bridge private data
Return
struct fpga_bridge
pointer or ERR_PTR()
-
void fpga_bridge_unregister(struct fpga_bridge *bridge)¶
unregister an FPGA bridge
Parameters
struct fpga_bridge *bridge
FPGA bridge struct
Description
This function is intended for use in an FPGA bridge driver's remove function.