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blackhat.pw
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/
usr
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src
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linux-headers-5.4.0-215
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include
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linux
/
greybus
/
Filename :
hd.h
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/* SPDX-License-Identifier: GPL-2.0 */ /* * Greybus Host Device * * Copyright 2014-2015 Google Inc. * Copyright 2014-2015 Linaro Ltd. */ #ifndef __HD_H #define __HD_H #include <linux/types.h> #include <linux/device.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); }; 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 */