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- /*
- * Greybus Host Device
- *
- * Copyright 2014-2015 Google Inc.
- * Copyright 2014-2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
- */
- #ifndef __HD_H
- #define __HD_H
- struct gb_host_device;
- struct gb_message;
- struct gb_hd_driver {
- size_t hd_priv_size;
- int (*cport_allocate)(struct gb_host_device *hd, int cport_id,
- unsigned long flags);
- void (*cport_release)(struct gb_host_device *hd, u16 cport_id);
- int (*cport_enable)(struct gb_host_device *hd, u16 cport_id,
- unsigned long flags);
- int (*cport_disable)(struct gb_host_device *hd, u16 cport_id);
- int (*cport_connected)(struct gb_host_device *hd, u16 cport_id);
- int (*cport_flush)(struct gb_host_device *hd, u16 cport_id);
- int (*cport_shutdown)(struct gb_host_device *hd, u16 cport_id,
- u8 phase, unsigned int timeout);
- int (*cport_quiesce)(struct gb_host_device *hd, u16 cport_id,
- size_t peer_space, unsigned int timeout);
- int (*cport_clear)(struct gb_host_device *hd, u16 cport_id);
- int (*message_send)(struct gb_host_device *hd, u16 dest_cport_id,
- struct gb_message *message, gfp_t gfp_mask);
- void (*message_cancel)(struct gb_message *message);
- int (*latency_tag_enable)(struct gb_host_device *hd, u16 cport_id);
- int (*latency_tag_disable)(struct gb_host_device *hd, u16 cport_id);
- int (*output)(struct gb_host_device *hd, void *req, u16 size, u8 cmd,
- bool async);
- int (*timesync_enable)(struct gb_host_device *hd, u8 count,
- u64 frame_time, u32 strobe_delay, u32 refclk);
- int (*timesync_disable)(struct gb_host_device *hd);
- int (*timesync_authoritative)(struct gb_host_device *hd,
- u64 *frame_time);
- int (*timesync_get_last_event)(struct gb_host_device *hd,
- u64 *frame_time);
- };
- struct gb_host_device {
- struct device dev;
- int bus_id;
- const struct gb_hd_driver *driver;
- struct list_head modules;
- struct list_head connections;
- struct ida cport_id_map;
- /* Number of CPorts supported by the UniPro IP */
- size_t num_cports;
- /* Host device buffer constraints */
- size_t buffer_size_max;
- struct gb_svc *svc;
- /* Private data for the host driver */
- unsigned long hd_priv[0] __aligned(sizeof(s64));
- };
- #define to_gb_host_device(d) container_of(d, struct gb_host_device, dev)
- int gb_hd_cport_reserve(struct gb_host_device *hd, u16 cport_id);
- void gb_hd_cport_release_reserved(struct gb_host_device *hd, u16 cport_id);
- int gb_hd_cport_allocate(struct gb_host_device *hd, int cport_id,
- unsigned long flags);
- void gb_hd_cport_release(struct gb_host_device *hd, u16 cport_id);
- struct gb_host_device *gb_hd_create(struct gb_hd_driver *driver,
- struct device *parent,
- size_t buffer_size_max,
- size_t num_cports);
- int gb_hd_add(struct gb_host_device *hd);
- void gb_hd_del(struct gb_host_device *hd);
- void gb_hd_shutdown(struct gb_host_device *hd);
- void gb_hd_put(struct gb_host_device *hd);
- int gb_hd_output(struct gb_host_device *hd, void *req, u16 size, u8 cmd,
- bool in_irq);
- int gb_hd_init(void);
- void gb_hd_exit(void);
- #endif /* __HD_H */
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