diff options
Diffstat (limited to 'drivers/rpmsg/rpmsg_internal.h')
| -rw-r--r-- | drivers/rpmsg/rpmsg_internal.h | 46 |
1 files changed, 25 insertions, 21 deletions
diff --git a/drivers/rpmsg/rpmsg_internal.h b/drivers/rpmsg/rpmsg_internal.h index 0d791c30b7ea..397e4926bd02 100644 --- a/drivers/rpmsg/rpmsg_internal.h +++ b/drivers/rpmsg/rpmsg_internal.h @@ -16,11 +16,15 @@ #include <linux/poll.h> #define to_rpmsg_device(d) container_of(d, struct rpmsg_device, dev) -#define to_rpmsg_driver(d) container_of(d, struct rpmsg_driver, drv) +#define to_rpmsg_driver(d) container_of_const(d, struct rpmsg_driver, drv) + +extern const struct class rpmsg_class; /** * struct rpmsg_device_ops - indirection table for the rpmsg_device operations - * @create_ept: create backend-specific endpoint, requried + * @create_channel: create backend-specific channel, optional + * @release_channel: release backend-specific channel, optional + * @create_ept: create backend-specific endpoint, required * @announce_create: announce presence of new channel, optional * @announce_destroy: announce destruction of channel, optional * @@ -29,23 +33,28 @@ * advertise new channels implicitly by creating the endpoints. */ struct rpmsg_device_ops { + struct rpmsg_device *(*create_channel)(struct rpmsg_device *rpdev, + struct rpmsg_channel_info *chinfo); + int (*release_channel)(struct rpmsg_device *rpdev, + struct rpmsg_channel_info *chinfo); struct rpmsg_endpoint *(*create_ept)(struct rpmsg_device *rpdev, rpmsg_rx_cb_t cb, void *priv, struct rpmsg_channel_info chinfo); - int (*announce_create)(struct rpmsg_device *ept); - int (*announce_destroy)(struct rpmsg_device *ept); + int (*announce_create)(struct rpmsg_device *rpdev); + int (*announce_destroy)(struct rpmsg_device *rpdev); }; /** * struct rpmsg_endpoint_ops - indirection table for rpmsg_endpoint operations - * @destroy_ept: destroy the given endpoint, required + * @destroy_ept: see @rpmsg_destroy_ept(), required * @send: see @rpmsg_send(), required * @sendto: see @rpmsg_sendto(), optional - * @send_offchannel: see @rpmsg_send_offchannel(), optional * @trysend: see @rpmsg_trysend(), required * @trysendto: see @rpmsg_trysendto(), optional - * @trysend_offchannel: see @rpmsg_trysend_offchannel(), optional + * @poll: see @rpmsg_poll(), optional + * @set_flow_control: see @rpmsg_set_flow_control(), optional + * @get_mtu: see @rpmsg_get_mtu(), optional * * Indirection table for the operations that a rpmsg backend should implement. * In addition to @destroy_ept, the backend must at least implement @send and @@ -56,37 +65,32 @@ struct rpmsg_endpoint_ops { int (*send)(struct rpmsg_endpoint *ept, void *data, int len); int (*sendto)(struct rpmsg_endpoint *ept, void *data, int len, u32 dst); - int (*send_offchannel)(struct rpmsg_endpoint *ept, u32 src, u32 dst, - void *data, int len); int (*trysend)(struct rpmsg_endpoint *ept, void *data, int len); int (*trysendto)(struct rpmsg_endpoint *ept, void *data, int len, u32 dst); - int (*trysend_offchannel)(struct rpmsg_endpoint *ept, u32 src, u32 dst, - void *data, int len); __poll_t (*poll)(struct rpmsg_endpoint *ept, struct file *filp, poll_table *wait); + int (*set_flow_control)(struct rpmsg_endpoint *ept, bool pause, u32 dst); + ssize_t (*get_mtu)(struct rpmsg_endpoint *ept); }; -int rpmsg_register_device(struct rpmsg_device *rpdev); -int rpmsg_unregister_device(struct device *parent, - struct rpmsg_channel_info *chinfo); - struct device *rpmsg_find_device(struct device *parent, struct rpmsg_channel_info *chinfo); +struct rpmsg_device *rpmsg_create_channel(struct rpmsg_device *rpdev, + struct rpmsg_channel_info *chinfo); +int rpmsg_release_channel(struct rpmsg_device *rpdev, + struct rpmsg_channel_info *chinfo); /** - * rpmsg_chrdev_register_device() - register chrdev device based on rpdev + * rpmsg_ctrldev_register_device() - register a char device for control based on rpdev * @rpdev: prepared rpdev to be used for creating endpoints * * This function wraps rpmsg_register_device() preparing the rpdev for use as * basis for the rpmsg chrdev. */ -static inline int rpmsg_chrdev_register_device(struct rpmsg_device *rpdev) +static inline int rpmsg_ctrldev_register_device(struct rpmsg_device *rpdev) { - strcpy(rpdev->id.name, "rpmsg_chrdev"); - rpdev->driver_override = "rpmsg_chrdev"; - - return rpmsg_register_device(rpdev); + return rpmsg_register_device_override(rpdev, "rpmsg_ctrl"); } #endif |