diff options
Diffstat (limited to 'drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h')
| -rw-r--r-- | drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h index c7d2cf1f2e68..e8e39a154c74 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h @@ -14,6 +14,12 @@ #include "vchiq_core.h" #include "vchiq_debugfs.h" +/* Some per-instance constants */ +#define MAX_COMPLETIONS 128 +#define MAX_SERVICES 64 +#define MAX_ELEMENTS 8 +#define MSG_QUEUE_SIZE 128 + enum USE_TYPE_E { USE_TYPE_SERVICE, USE_TYPE_VCHIQ @@ -58,9 +64,63 @@ struct vchiq_drvdata { struct rpi_firmware *fw; }; +struct user_service { + struct vchiq_service *service; + void __user *userdata; + struct vchiq_instance *instance; + char is_vchi; + char dequeue_pending; + char close_pending; + int message_available_pos; + int msg_insert; + int msg_remove; + struct completion insert_event; + struct completion remove_event; + struct completion close_event; + struct vchiq_header *msg_queue[MSG_QUEUE_SIZE]; +}; + +struct bulk_waiter_node { + struct bulk_waiter bulk_waiter; + int pid; + struct list_head list; +}; + +struct vchiq_instance { + struct vchiq_state *state; + struct vchiq_completion_data_kernel completions[MAX_COMPLETIONS]; + int completion_insert; + int completion_remove; + struct completion insert_event; + struct completion remove_event; + struct mutex completion_mutex; + + int connected; + int closing; + int pid; + int mark; + int use_close_delivered; + int trace; + + struct list_head bulk_waiter_list; + struct mutex bulk_waiter_list_mutex; + + struct vchiq_debugfs_node debugfs_node; +}; + +struct dump_context { + char __user *buf; + size_t actual; + size_t space; + loff_t offset; +}; + extern int vchiq_arm_log_level; extern int vchiq_susp_log_level; +extern spinlock_t msg_queue_spinlock; +extern struct vchiq_state g_state; + int vchiq_platform_init(struct platform_device *pdev, struct vchiq_state *state); @@ -114,4 +174,26 @@ vchiq_instance_get_trace(struct vchiq_instance *instance); extern void vchiq_instance_set_trace(struct vchiq_instance *instance, int trace); +#if IS_ENABLED(CONFIG_VCHIQ_CDEV) + +extern void +vchiq_deregister_chrdev(void); + +extern int +vchiq_register_chrdev(struct device *parent); + +#else + +static inline void vchiq_deregister_chrdev(void) { } +static inline int vchiq_register_chrdev(struct device *parent) { return 0; } + +#endif /* IS_ENABLED(CONFIG_VCHIQ_CDEV) */ + +extern enum vchiq_status +service_callback(enum vchiq_reason reason, struct vchiq_header *header, + unsigned int handle, void *bulk_userdata); + +extern void +free_bulk_waiter(struct vchiq_instance *instance); + #endif /* VCHIQ_ARM_H */ |