linux/drivers/greybus/hd.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Greybus Host Device
 *
 * Copyright 2014-2015 Google Inc.
 * Copyright 2014-2015 Linaro Ltd.
 */

#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/greybus.h>

#include "greybus_trace.h"

EXPORT_TRACEPOINT_SYMBOL_GPL(…);
EXPORT_TRACEPOINT_SYMBOL_GPL(…);
EXPORT_TRACEPOINT_SYMBOL_GPL(…);
EXPORT_TRACEPOINT_SYMBOL_GPL(…);
EXPORT_TRACEPOINT_SYMBOL_GPL(…);
EXPORT_TRACEPOINT_SYMBOL_GPL(…);

static struct ida gb_hd_bus_id_map;

int gb_hd_output(struct gb_host_device *hd, void *req, u16 size, u8 cmd,
		 bool async)
{ … }
EXPORT_SYMBOL_GPL(…);

static ssize_t bus_id_show(struct device *dev,
			   struct device_attribute *attr, char *buf)
{ … }
static DEVICE_ATTR_RO(bus_id);

static struct attribute *bus_attrs[] = …;
ATTRIBUTE_GROUPS(…);

int gb_hd_cport_reserve(struct gb_host_device *hd, u16 cport_id)
{ … }
EXPORT_SYMBOL_GPL(…);

void gb_hd_cport_release_reserved(struct gb_host_device *hd, u16 cport_id)
{ … }
EXPORT_SYMBOL_GPL(…);

/* Locking: Caller guarantees serialisation */
int gb_hd_cport_allocate(struct gb_host_device *hd, int cport_id,
			 unsigned long flags)
{ … }

/* Locking: Caller guarantees serialisation */
void gb_hd_cport_release(struct gb_host_device *hd, u16 cport_id)
{ … }

static void gb_hd_release(struct device *dev)
{ … }

const struct device_type greybus_hd_type = …;

struct gb_host_device *gb_hd_create(struct gb_hd_driver *driver,
				    struct device *parent,
				    size_t buffer_size_max,
				    size_t num_cports)
{ … }
EXPORT_SYMBOL_GPL(…);

int gb_hd_add(struct gb_host_device *hd)
{ … }
EXPORT_SYMBOL_GPL(…);

void gb_hd_del(struct gb_host_device *hd)
{ … }
EXPORT_SYMBOL_GPL(…);

void gb_hd_shutdown(struct gb_host_device *hd)
{ … }
EXPORT_SYMBOL_GPL(…);

void gb_hd_put(struct gb_host_device *hd)
{ … }
EXPORT_SYMBOL_GPL(…);

int __init gb_hd_init(void)
{ … }

void gb_hd_exit(void)
{ … }