diff options
Diffstat (limited to 'drivers/bus/fsl-mc/fsl-mc-private.h')
| -rw-r--r-- | drivers/bus/fsl-mc/fsl-mc-private.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/bus/fsl-mc/fsl-mc-private.h b/drivers/bus/fsl-mc/fsl-mc-private.h index c932387641fa..1958fa065360 100644 --- a/drivers/bus/fsl-mc/fsl-mc-private.h +++ b/drivers/bus/fsl-mc/fsl-mc-private.h @@ -10,6 +10,8 @@ #include <linux/fsl/mc.h> #include <linux/mutex.h> +#include <linux/ioctl.h> +#include <linux/miscdevice.h> /* * Data Path Management Complex (DPMNG) General API @@ -543,6 +545,22 @@ struct fsl_mc_resource_pool { }; /** + * struct fsl_mc_uapi - information associated with a device file + * @misc: struct miscdevice linked to the root dprc + * @device: newly created device in /dev + * @mutex: mutex lock to serialize the open/release operations + * @local_instance_in_use: local MC I/O instance in use or not + * @static_mc_io: pointer to the static MC I/O object + */ +struct fsl_mc_uapi { + struct miscdevice misc; + struct device *device; + struct mutex mutex; /* serialize open/release operations */ + u32 local_instance_in_use; + struct fsl_mc_io *static_mc_io; +}; + +/** * struct fsl_mc_bus - logical bus that corresponds to a physical DPRC * @mc_dev: fsl-mc device for the bus device itself. * @resource_pools: array of resource pools (one pool per resource type) @@ -551,6 +569,7 @@ struct fsl_mc_resource_pool { * @irq_resources: Pointer to array of IRQ objects for the IRQ pool * @scan_mutex: Serializes bus scanning * @dprc_attr: DPRC attributes + * @uapi_misc: struct that abstracts the interaction with userspace */ struct fsl_mc_bus { struct fsl_mc_device mc_dev; @@ -558,6 +577,8 @@ struct fsl_mc_bus { struct fsl_mc_device_irq *irq_resources; struct mutex scan_mutex; /* serializes bus scanning */ struct dprc_attributes dprc_attr; + struct fsl_mc_uapi uapi_misc; + int irq_enabled; }; #define to_fsl_mc_bus(_mc_dev) \ @@ -574,6 +595,9 @@ int __init dprc_driver_init(void); void dprc_driver_exit(void); +int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev, + bool alloc_interrupts); + int __init fsl_mc_allocator_driver_init(void); void fsl_mc_allocator_driver_exit(void); @@ -612,4 +636,29 @@ void fsl_mc_get_root_dprc(struct device *dev, struct fsl_mc_device *fsl_mc_device_lookup(struct fsl_mc_obj_desc *obj_desc, struct fsl_mc_device *mc_bus_dev); +u16 mc_cmd_hdr_read_cmdid(struct fsl_mc_command *cmd); + +#ifdef CONFIG_FSL_MC_UAPI_SUPPORT + +int fsl_mc_uapi_create_device_file(struct fsl_mc_bus *mc_bus); + +void fsl_mc_uapi_remove_device_file(struct fsl_mc_bus *mc_bus); + +#else + +static inline int fsl_mc_uapi_create_device_file(struct fsl_mc_bus *mc_bus) +{ + return 0; +} + +static inline void fsl_mc_uapi_remove_device_file(struct fsl_mc_bus *mc_bus) +{ +} + +#endif + +int disable_dprc_irq(struct fsl_mc_device *mc_dev); +int enable_dprc_irq(struct fsl_mc_device *mc_dev); +int get_dprc_irq_state(struct fsl_mc_device *mc_dev); + #endif /* _FSL_MC_PRIVATE_H_ */ |